US20050127722A1 - High chair - Google Patents
High chair Download PDFInfo
- Publication number
- US20050127722A1 US20050127722A1 US10/940,649 US94064904A US2005127722A1 US 20050127722 A1 US20050127722 A1 US 20050127722A1 US 94064904 A US94064904 A US 94064904A US 2005127722 A1 US2005127722 A1 US 2005127722A1
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- United States
- Prior art keywords
- seat
- tray
- chair
- high chair
- bottom portion
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
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- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47D—FURNITURE SPECIALLY ADAPTED FOR CHILDREN
- A47D1/00—Children's chairs
- A47D1/002—Children's chairs adjustable
- A47D1/004—Children's chairs adjustable in height
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- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47D—FURNITURE SPECIALLY ADAPTED FOR CHILDREN
- A47D1/00—Children's chairs
-
- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47D—FURNITURE SPECIALLY ADAPTED FOR CHILDREN
- A47D1/00—Children's chairs
- A47D1/002—Children's chairs adjustable
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- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47D—FURNITURE SPECIALLY ADAPTED FOR CHILDREN
- A47D1/00—Children's chairs
- A47D1/008—Children's chairs with trays
- A47D1/0081—Children's chairs with trays adjustable
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- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47D—FURNITURE SPECIALLY ADAPTED FOR CHILDREN
- A47D1/00—Children's chairs
- A47D1/008—Children's chairs with trays
- A47D1/0085—Children's chairs with trays removable
Definitions
- the present invention relates to seating for children and, in particular, to high chairs.
- FIG. 2 is a front perspective view of a tray according to the invention.
- Seat back portion 320 has integrally molded lateral tabs or extensions 321 that extend forwardly and are pivoted to armrest portions 314 about the pivot axis 322 .
- the geometry of chair 10 substantially lessens the rearward excursion of the seat back portion 320 when reclined. This minimizes the rearward shift of the center of gravity of the occupied high chair, whereby the high chair can meet stability requirements with a smaller footprint.
- This downward movement is translated into a lateral pulling movement of straps 328 a , 328 b as indicated by the arrows in FIG. 13 , whereby the bolts 326 a , 326 b are retracted from the notches 318 .
- a stop 334 associated with release button 330 engages a window edge 336 in seat back portion 320 to limit upward movement of the release button.
- the accessory bar with its toys or other appendages can be quickly swung down in front of the seat occupant, or quickly moved out of the way to the upright position.
- the pivot connection of the bar 90 to the seat back portion 320 can be a break-away connection so that, if the bar 90 inadvertently is pivoted rearwardly past the second pivot, a predetermined force on the bar 90 (for example, a force applied by a curious child attempting to hang on, or step on, the bar 90 ) allows the bar 90 to break-away from the seat back portion 320 . In this manner, the high chair 10 will not be pulled over, rearwardly, if such force is applied to the bar 90 .
Abstract
A high chair features various modes of adjustability and enhanced utility. The height of the chair can be adjusted using a single hand that engages a rear handle. The height of a seat platform of the chair can be adjusted separately relative to the tray. The tray itself is ergonomically designed for the benefit of the caregiver. A removable tray liner facilitates after-meal clean-up. Wheels on the underside of the tray ease fore/aft adjustment. A pivoting back rest of the chair minimizes rearward shift of the center of gravity of the occupied chair, thus requiring a smaller chair footprint. Further, an accessory bar pivoted to a seat back portion of the chair provides readily accessible entertainment.
Description
- This application claims the benefit of U.S. provisional application No. 60/457,325, filed Mar. 26, 2003, which is incorporated herein by reference in its entirety.
- The present invention relates to seating for children and, in particular, to high chairs.
- High chairs have been provided with a myriad of features designed to enhance their comfort, safety and convenience. There is room for improvement, however, as to several aspects of high chair design. This invention addresses these needs.
- During the course of attending to a child in a highchair, it is common practice for the caregiver to sit in front of the highchair and rest his or her arms on the high chair tray. High chair trays typically are made of a relatively hard, unforgiving material and do not provide a comfortable resting place for the caregiver's arms.
- The tray of a high chair can become extremely soiled by an infant while eating. Often relatively large food chunks remain on the surface of the tray. The effective and controlled removal of this debris is not adequately addressed in the prior art.
- The position of a high chair tray often requires adjustment. Often the tray sticks, or does not slide easily on the surface of the highchair on which it bears.
- High chairs that allow the height of the chair to be adjusted require the use of two hands to make the adjustment. Busy caregivers often find that only one hand is free for making a height adjustment. This requires the caregiver first to free up one hand before the adjustment can be made.
- Stringent stability (tipping) regulations have a direct impact on the footprint geometry of a high chair. Generally speaking, consumers prefer to have a high chair with a small footprint so that it can be integrated into the kitchen or table setting more conveniently. The footprint size, which is governed by stability concerns, is necessarily larger in high chairs that have a recline feature. Because a child's head comprises a significant proportion of his or her body weight, in reclining high chairs the center of gravity can move substantially to the rear as the child is moved from a full upright to a reclining position. Thus it is highly desirable to minimize the shift of the center of gravity when the seat back is reclined, whereby the footprint of the high chair can be minimized.
- Recline mechanisms that allow the seat back to pivot at the bight portion of the seat usually cause a change in the distance between the seat back and the crotch support of the armbar as the seat is moved through various recline positions. This distance is regulated by industry standards, and it is highly desirable to be able to vary the angle of the seat back without significantly altering the distance between the seat back and the crotch support.
- Children typically utilize high chairs throughout a relatively large age span. The wide range of physical development that a child undergoes during this time presents a formidable challenge to designing a high chair that ideally accommodates all of the physical needs of the child. This situation is exacerbated by high chairs that have recline features, enabling the unit to be used for very young infants, and removable arm bars, which when removed allow the chair to be pulled right up to a table for use by an older child. One aspect of available high chairs that does not adequately address this need is the seat height relative to the tray. Most high chairs are designed to accommodate the older child, which means that the tray is usually higher than optimal for an infant or a toddler.
- Finally, a consumer-preferred feature is to have entertainment value readily available for a child in a high chair. Often after a meal it is desirable to keep the child in the high chair and quickly occupy the child with interesting objects that cannot be thrown to the floor.
- One aspect of the invention concerns a chair tray that is configured ergonomically for the caregiver. The tray has a rim portion, for example, a front rim portion, with an undulate height profile. This height profile has a medial portion flanked by two rest portions that are lower than the medial portion. The rest portions can be flanked by two shoulder portions that are higher than the rest portions, and the rest portions can have curved upper surfaces and rounded upper edges.
- Another aspect of the invention concerns a removable insert for a tray that facilitates clean-up. The insert comprises a self-supporting, flexible member that is shaped generally to conform to and cover a central portion of the tray. The insert also may cover at least the immediately adjacent portions of a rim of the tray. The insert can include a central portion and a raised rim surrounding the central portion, and, in one embodiment, the raised rim can extend over and completely cover the rim of the tray. When removed from the tray, the insert can be flexed and tilted to channel food scraps to the center and one edge of the insert for easy disposal into a trash receptacle. The insert can be stably supported on any flat surface as a rimmed place mat when removed from the tray.
- Still another aspect of the invention facilitates easy fore/aft adjustment of the tray. The tray has a top side, an underside, and at least one wheel mounted to the underside to rotate for movably supporting the tray on a bearing surface of the chair. In one embodiment, the tray can have three wheels, two of which are laterally spaced and are rotatable about a common axis, and the third being centrally located and rotatable about an axis offset from the common axis. The chair can have an occupant restraint at the front of the seat, and the central wheel rides on a recessed track in the occupant restraint.
- A further aspect of the invention facilitates one-handed height adjustment of the chair. The chair comprises a seat including a seat bottom portion and a seat back portion, the seat bottom portion having a downwardly extending leg rest portion. A floor-engaging frame supports the seat, the frame including a front member in supporting engagement with the leg rest portion, the leg rest portion being slidable relative to the front member. The frame also includes an adjustable support for the rear of the seat comprising adjustably engageable mating portions of the frame and the seat. The chair also can have a handle for effecting the adjustment and for helping to bear the weight of the seat (and the occupant) with one hand as the adjustment is made.
- According to another aspect of the invention, the height-adjustable high chair comprises a seat, a floor-engaging frame including opposed side portions at opposite sides of the seat, and a height-adjustable support assembly between the seat and the frame. The support assembly can comprise a toothed rack on each side portion of the frame; a movable latch on the seat having a tooth at each side thereof for selectively engaging the teeth of the respective racks; and a handle for moving the latch between latched and unlatched positions. The handle can be centrally located. The latch can comprise a transverse bar pivoted transversely to the seat with a tooth at each of its ends, the handle being located on the bar for pivoting it between latched and unlatched positions.
- Yet another aspect of the invention minimizes the shift of the center of gravity of the chair/occupant combination. The chair comprises a seat including a seat bottom portion and a seat back portion pivotally mounted relative to the seat bottom portion about a transverse pivot axis to move between an upright position and a reclined position. The two seat portions define a seat bight region along the seat bottom portion between a first transverse axis, where a lower edge of the seat back portion intersects the seat bottom portion when the seat back is in the upright position, and a second transverse axis, where a lower edge of the seat back portion intersects the seat bottom portion when the seat back is in the reclined position. The pivot axis is located above and forwardly of the seat bight region. If such a chair has armrest portions, the seat back portion can be provided with lateral extensions that are pivoted to the armrest portions about the pivot axis. The seat bottom portion can be curved upwardly at the rear thereof, and the seat back portion can be similarly curved at the bottom thereof to slide closely past the seat bottom portion throughout the range of adjustment of the seat back portion.
- According to another aspect of the invention, the chair comprises a seat including a seat bottom portion and a seat back portion pivotally mounted relative to the seat bottom portion about a transverse pivot axis so that the seat back portion can move through a range of adjustment relative to the seat bottom portion. The seat back portion has a lower edge, and the lower edge overlaps the seat bottom portion. The pivot axis is located above and forwardly of the lower edge of the seat back portion throughout the range of adjustment.
- According to yet another aspect of the invention, the chair comprises a seat including a seat bottom portion having a seating surface and a seat back portion having a back support surface. The seat back portion is pivotally mounted relative to the seat bottom portion about a transverse pivot axis so that the seat back portion can move through a range of adjustment relative to the seat bottom portion. The pivot axis is located above the seating surface and forwardly of the back support surface throughout the range of adjustment.
- According to still another aspect of the invention, the chair comprises a seat including a seat bottom portion having a seating surface with a centerline and a seat back portion having a centerline. The seat back portion is pivotally mounted relative to the seat bottom portion about a transverse pivot axis so that the seat back portion can move through a range of adjustment relative to the seat bottom portion. The pivot axis is located above the portion of the seating surface along its centerline and forwardly of the portion of the seat back portion along its centerline.
- Another aspect of the invention provides for adjustability so that proper seat-to-tray distance can be achieved. The chair comprises a seat including a seat bottom portion and a seat back portion; a seat platform above the seat bottom portion; and an elevating mechanism beneath the seat platform for adjusting the height of the seat platform relative to the seat bottom portion. The seat platform and the elevating mechanism can be parts of an adjustable seat assembly that also comprises a base attached to the seat bottom portion, the elevating mechanism being located between the base and the seat platform. The elevating mechanism can comprise a movable elevating member supporting the seat platform, and a ramped surface on at least one of the elevating member, the base and the seat platform, whereby movement of the elevating member changes the height of the seat platform.
- A further aspect of the invention provides readily available entertainment for the high chair occupant. This entertainment is in the form of an accessory bar pivoted to the seat about a transverse axis, the accessory bar being movable between a forward position in which the bar is disposed in front of the seat back portion for access by the seat occupant, and a retracted position in which the bar is disposed above and/or behind the seat back portion. Toys or other items of interest can be attached to the bar.
- The above and other features, aspects and advantages of the invention will become apparent from the following detailed description and the accompany exemplary embodiments shown in the drawing figures, in which:
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FIG. 1 is a top perspective view of a high chair according to the invention; -
FIG. 2 is a front perspective view of a tray according to the invention; -
FIG. 3 is a top perspective view of the tray ofFIG. 2 ; -
FIG. 4 is a front perspective view of a tray and a raised tray insert according to the invention; -
FIG. 5 is a front perspective view similar toFIG. 4 , showing the tray insert in position on the tray; -
FIG. 6 is a bottom plan view of a tray according to the invention; -
FIG. 7 is a top plan view of a lower tray on which the tray ofFIG. 6 rests; -
FIG. 8 is a cross-sectional view of the tray taken along line 8-8 inFIG. 6 ; -
FIG. 9 is a bottom perspective view of the chair ofFIG. 1 , showing a portion of the height adjustment mechanism according to the invention; -
FIG. 10 is a detail perspective view similar toFIG. 9 , showing the height adjustment mechanism in the latched condition; -
FIG. 11 is a detail perspective view similar toFIG. 10 , showing the height adjustment mechanism in the unlatched condition; -
FIG. 12 is a bottom perspective view of the leg rest portion of the chair ofFIG. 1 and the support for the leg rest portion; -
FIG. 13 is a perspective view of portions of the seat of the chair ofFIG. 1 ; -
FIG. 14 is a front elevational view of the backrest portion of the seat; -
FIG. 15 is a perspective view of an adjustable seat assembly according to the invention; -
FIG. 16 is an exploded view of the seat assembly ofFIG. 15 ; -
FIG. 17 is partial assembly/exploded view of the seat assembly ofFIG. 15 ; -
FIG. 18 is a side elevational view of another form of adjustable seat assembly according to the invention, shown in its lowest (collapsed) configuration; -
FIG. 19 is a view similar toFIG. 18 , showing the seat assembly ofFIG. 18 in an elevated (expanded) configuration; -
FIG. 20 is a bottom perspective view of the seat assembly ofFIG. 18 ; -
FIG. 21 is a bottom perspective view of the seat assembly ofFIG. 18 , with the base removed; -
FIG. 22 is a perspective view of the accessory bar according to the invention, shown in the forward position; and -
FIG. 23 is a perspective view of the accessory bar ofFIG. 22 , shown in the raised position. - It is to be understood that the invention is not limited in its application to the details of construction and the arrangement of components described below and illustrated in the drawing figures. Those skilled in the art will recognize that various modifications can be made without departing from the scope of the invention, which is defined by the appended claims.
- Reference will now be made in detail to presently preferred embodiments of the invention, examples of which are illustrated in the accompanying drawings. An effort has been made to use the same reference numbers throughout the drawings to refer to the same or like parts.
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FIG. 1 generally shows ahigh chair 10 according to the invention, which comprises a floor-standingframe 20 supporting aseat 30. Aremovable arm bar 40 on the seat supports a removable tray 50 (seeFIGS. 2, 6 , 8). -
Frame 20 has an integrally moldedplastic chassis 202 with spacedside portions 204 interconnected by afront cross member 206.Chassis 202 also has fixedfront leg sockets 208, which receive tubularfront legs 210, and pivotingrear leg sockets 212, which receive tubularrear legs 214. Floor-engaging feet or casters (not shown) are provided at the bottom ends oflegs rear leg sockets 212 enables therear legs 214 to be folded for more compact storage when the high chair is not in use. -
Seat 30 comprises a molded plasticseat bottom portion 310 adjustably supported onchassis 20, and a molded plastic seat backportion 320 pivoted to seatbottom portion 310.Seat bottom portion 310 has an integrally moldedleg rest portion 312, and integrally moldedarmrest portions 314.Seat 30 is depicted as a bare shell, it being understood that a padded covering (not shown) would normally be used to enhance the comfort of the seat. - Referring to
FIG. 7 ,armrest portions 314 support theremovable arm bar 40.Arm bar 40 is molded of plastic, hasvarious recesses 42, and functions as a small tray.Arm bar 40 also has a dependingcrotch bar 44, which functions as a restraint to prevent the child occupant from sliding out of the chair.Removable tray 50 is movably supported on the upper side surfaces 46 and a central recessedsurface 48 ofarm bar 40, as described below. - Tray Features
- The
tray 50 can include at least one wheel mounted to its underside to rotate for movably supporting thetray 50 on a bearing surface of the chair. For example, referring toFIGS. 6 and 8 , the underside oftray 50 can be provided with three wheels: two laterally spacedwheels 502, which ride onside surfaces 46 ofarm bar 40, and acenter wheel 504, which rides on recessedtrack 48 ofarm bar 40. Each of the wheels is supported on anaxle 506, which is carried bywebs 508 that are integrally molded into the tray. The wheels facilitate fore/aft adjustment of the tray.Tray 50 is retained onarm bar 40 bytabs 510 that engage the bottom side edges ofarm bar 40. Eachtab 510 is carried by aside release handle 512, which is pivoted at 514 to the underside of the tray. Side release handles 512 are connected to acentral release button 516 at the front of the tray by a pair of flexible butrigid straps 518, which are guided betweenwebs 520 and can transmit force along their length. A spring (not shown) can be housed inrelease button 516 to bias the button outwardly and, throughstraps 518, to bias the retainingtabs 510 inwardly to a locking position. To move the tray, the caregiver need only press therelease button 516 inwardly (or squeeze handles 512 upwardly) to unlock retainingtabs 510, whereupon the tray can be rolled fore or aft onwheels 502 to a new position and locked there. - The front of the
tray 50 is ergonomically contoured to enhance comfort for the caregiver. Referring toFIGS. 2 and 3 ,central portion 526 oftray 50 is surrounded by a raisedrim 530, and the front of the rim has an undulate height profile. Specifically, themedial portion 532 of the rim is higher than the twoadjacent rest portions 534, and therest portions 534 are flanked byhigher shoulder portions 536. Therest portions 534 have gently curved upper surfaces and rounded upper edges. These features cradle the caregiver's hands or arms quite comfortably, as shown inFIG. 3 . - Further, as can be seen in
FIG. 2 , thecentral portion 526 of thetray 50 gently slopes upward to the upper edge ofrim 530. That is, theinner surface 538 ofrim 530 is angled, rather than perpendicular, relative tocentral portion 526 and the upper edge ofrim 530 to make wiping away of food scraps from-thecentral portion 526 overrim 530 easier. - Referring to
FIGS. 4 and 5 , tray cleaning after meals or other activities is facilitated by a removable flexible tray insert orliner 60 that fits ontotray 50.Insert 60 is molded of a flexible plastic or rubberized material that is shaped generally to conform to and cover thecentral portion 526 of the tray. Theinsert 60 also can be shaped generally to conform to and cover at least the immediately adjacent portions of therim 530 of the tray. Theinsert 60 includes a central (major)portion 604 to cover thecentral portion 526 of thetray 50 and a raisedrim 606 surrounding thecentral portion 604. The raisedrim 606 can cover at least the immediately adjacent portions of therim 530. In one embodiment, as shown inFIG. 5 , the raisedrim 606 extends over and completely covers therim 530 of thetray 50. Aconvenience tab 602 facilitates removal of the insert.Insert 60 thus can readily be removed fromtray 50, carried to a trash receptacle, and flexed and tilted to channel food scraps or other debris to the center and one edge of the insert (as is commonly done, for example, with table place mats) for easy disposal of the debris. In addition, theinsert 60 is flexible enough to fit, when folded, into a standard-sized homeowner's sink, which facilitates clean-up. Thecentral portion 604 ofinsert 60 is substantially flat, such that theinsert 60 can be stably supported on any flat surface, e.g., a table, as a rimmed place mat when removed from the tray. Theinsert 60 is can be made of a material that has a relatively high coefficient of friction so that it will not slip or slide easily on a table or other surface. Theinsert 60 can include arecess 608 to hold a beverage. Therecess 608 can be received in abeverage recess 528 of thetray 50. Additional recesses can be provided to enhance the versatility of theinsert 60. - Chair Height Adjustment
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FIGS. 9-11 depict the features that enable one-handed adjustment of the height of theseat 30 relative to theframe 20. The inboard face of eachchassis side portion 204 has an integrally moldedrack 220 with a series of vertically spacedteeth 222. Eachtooth 222 has a support shoulder orledge 224 that is adapted to bear one half the weight of the seat. Arear bearing surface 226 and ashoulder 228 onchassis side portion 204 serve to guide and locateseat 30. - A
transverse bar 350 is pivoted about itslongitudinal axis 352 to the bottom rear ofseat 30 in aU-shaped recess 354 at each side of the seat. A retainingtab 356 at each side helps to keepbar 350 in position inrecesses 354, while allowing thebar 350 to pivot. A tooth 360 at each end ofbar 350 engages theshoulder 224 of a selectedtooth 222 in itsrespective rack 220. Aleaf spring 357 biasestransverse bar 350 to the latched position, i.e., the position in which teeth 360 engage teeth 222 (seeFIG. 10 ). Acentral handle 358 is integral withtransverse bar 350. Handle 358 has agrip portion 358 a adapted to be grasped by the fingers of a hand, and aheel portion 358 b adapted to be engaged by the heel of the hand when the fingers engagegrip portion 358 a. Acurved extension 362 at each side ofseat 30 wraps around the respectivechassis side portion 204. Theextension 362 has abearing surface 366 and ashoulder 368 that mate with bearingsurface 226 andshoulder 228, respectively. - To change the height of
seat 30,central handle 358 is grasped by a single hand, with the fingers wrapped aroundgrip portion 358 a and the heel of the hand engagingheel portion 358 b.Heel portion 358 b is then raised, which pivotstransverse bar 350 in the direction of the arrows inFIGS. 10 and 11 to move teeth 360 out of engagement with teeth 222 (seeFIG. 11 ). Substantially the entire weight of the seat (and the seat occupant) can be borne by the fingers that engage thegrip portion 358 a ofhandle 358, whereby the seat can be raised or lowered by one hand to a new position. When the new position is reached, handle 358 is released, which allowsbar 350 to pivot back to the latched position with teeth 360 in engagement withnew teeth 222. The mating bearing surfaces 226, 366 help to resist downward tilting ofseat 30. Additional stability forseat 30 is provided by chassis front cross member 206 (seeFIG. 12 ), which has guidingsupport slots 207 that slidably engagesupport flanges 313 onleg rest portion 312. The dashed lines inFIG. 12 illustrate how theleg rest portion 312 moves relative to thefront cross member 206. - Recline Features
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FIGS. 13 and 14 depict the recline features of the high chair. The seat backportion 320 is pivotally mounted to theseat bottom portion 310 about a transverse pivot axis, for example, axis 322, to move between an upright position (as shown inFIG. 14 ) and a reclined position. The seat backportion 320 andseat bottom portion 310 together define a seat bight region, generally indicated 316, along theseat bottom portion 320. Theseat bight region 316 is defined as the region between a first transverse axis A1 of theseat bottom portion 310, where alower edge 323 of the seat backportion 320 intersects theseat bottom portion 310 when the seat back is in the upright position, and a second transverse axis A2 of theseat bottom portion 310, where thelower edge 323 intersects theseat bottom portion 310 when the seat back is the reclined position. The pivot axis 322 is located above and forwardly of this seat bight region, as can be seen inFIGS. 1 and 13 . According to another aspect of the invention, the pivot axis 322 is located above and forwardly of thelower edge 323 of the seat backportion 320 throughout the range of adjustment of the seat backportion 320. - Seat back
portion 320 has integrally molded lateral tabs orextensions 321 that extend forwardly and are pivoted to armrestportions 314 about the pivot axis 322. As compared to a conventional arrangement in which the seat back is hinged to the seat bottom in the seat bight region, the geometry ofchair 10 substantially lessens the rearward excursion of the seat backportion 320 when reclined. This minimizes the rearward shift of the center of gravity of the occupied high chair, whereby the high chair can meet stability requirements with a smaller footprint. The rear portion ofseat bottom portion 310 is curved upwardly, in theseat bight region 316, and thebottom 324 of seat backportion 320 is similarly curved so as to slide closely past theseat bottom portion 310 throughout the range of adjustment of the seat backportion 320. - The seat back
portion 320 can be selectively locked in various positions. This is facilitated by a series ofnotches 318 near each side of theseat bight portion 316 ofseat bottom portion 310. Thenotches 318 are engaged byretractable bolts 326 a, 326 b carried by seat backportion 320. Thesebolts 326 a, 326 b are essentially the ends of guided flexible, but rigid, straps 328 a, 328 b, similar to those used on the underside of tray 50 (seeFIG. 6 ). Thestraps portion 320 through acentral strap 329, which is bifurcated and laterally directed at its bottom to engagestraps FIG. 14 ,bolts notches 318 under the influence of a coil spring 332, which acts onstraps central strap 329. Downward pressure onrelease button 330 movescentral strap 329 downwardly against the action of spring 332. This downward movement is translated into a lateral pulling movement ofstraps FIG. 13 , whereby thebolts 326 a, 326 b are retracted from thenotches 318. Astop 334 associated withrelease button 330 engages awindow edge 336 in seat backportion 320 to limit upward movement of the release button. - The
seat bottom portion 310 has a seating surface 310S upon which a child sits, and the seat backportion 320 has a back support surface 320S against which a child can lean its back. According to another further of the invention, the pivot axis 322 is located above the seating surface 310S and forwardly of the back support surface 320S throughout the range of adjustment of the seat backportion 320. The seating surface 310S can have a centerline (not shown) that bisects theseat bottom portion 310 into left and right halves and that extends from a front edge of theseat bottom portion 310 to the front edge of theseat bight region 316. Likewise, theback support portion 320 can have a centerline (not shown) that bisects theback support portion 320 into left and right halves. According to yet another aspect of the invention, the pivot axis 322 is located above the portion of the seating surface 320S along its centerline and forwardly of the portion of the seat backportion 310 along its centerline. - As can be seen from
FIG. 13 , the angle of the seat backportion 320 relative to theseat bottom portion 310 varies, as the seat backportion 320 moves between the upright position and the reclined position, throughout its range of adjustment. Yet the distance between the seat back portion and the crotch support is not significantly altered. - Seat-to-Tray Height Adjustment
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FIGS. 15-17 depict afirst embodiment 70 of an adjustable seat assembly that is adapted to support the chair occupant at a selected height relative to the tray. As best seen inFIG. 16 ,seat assembly 70 comprises three main components: a base 710 adapted to rest onseat bottom portion 310; aseat platform 730 adapted to overliebase 710 and support the occupant; and an intermediate elevating mechanism 740 for adjusting the height of the seat platform relative to the base. These components can be made of injection molded plastic material.Base 710 is upwardly dished and has acentral opening 712 that accommodates crotch bar 44 (seeFIGS. 1 and 7 ) and a webbed crotch restraint, if so equipped.Seat platform 730 also has acrotch bar hole 732 that serves the same purpose.Side studs 714 onbase 710 extend throughside holes 734 inseat platform 730 to keep the parts from separating, and thestuds 714 can be used to secure the seat assembly to theseat bottom portion 310 by suitable means (not shown). Afront notch 718 is aligned with acentral recess 720, and both of these structures cooperate with a portion of the elevating mechanism 740, as described below. A plurality ofwedges 722 have rampedsurfaces 724 over which a portion of the elevating mechanism rides. The elevating mechanism is guided in twoparallel notches 716 inbase 710. - Elevating mechanism 740 comprises a
frame 742 surrounding a large central aperture 744 (through which crotch bar 44 can pass). At the front offrame 742 is a threadedhole 746 flanked byguide feet 747. Ashaft 748 has a threadedportion 750 that engages threadedhole 746, with therear end 752 ofshaft 748 captured inrecess 720. Theshaft 748 also has agroove 754 captured in thefront notch 718 ofbase 710. Aknob 756 at the front end ofshaft 748 facilitates rotation ofshaft 748, which movesframe 742 fore or aft. At the rear offrame 742 is abar 760 withlower surfaces 762, which ride onramps 724, andupper surfaces 764, which supportseat platform 730. Thus, asknob 756 is turned,frame 742 and bar 760 move fore or aft overwedges 722 to change the height ofseat platform 730. - A second adjustable
seat assembly embodiment 80 is shown inFIGS. 18-21 . Theembodiment 80 also comprises abase 810, aseat platform 830, and anadjusting mechanism 840. In this embodiment, the element that moves fore and aft to adjust seat platform height is a U-shaped slide 844 (seeFIG. 21 ) that haswedges 845. Crotch bar holes 812, 842 are provided, as in the first embodiment.Slide 844 has afront cross member 846 with aslot 848. Awheel 850 is centrally pivoted to the underside ofseat platform 830, and has aneccentric pin 852 that resides inslot 848. Rotation ofwheel 850 movespin 852, which movesslide 844 with its wedges fore or aft, thus causing the height ofseat platform 830 to change. - Accessory Bar
-
FIGS. 22 and 23 depict aU-shaped accessory bar 90 and its use.Accessory bar 90 can be made of plastic or other suitable stiff and lightweight material.Accessory bar 90 is shown covered by asoft sleeve 902 and supporting a number oftoys 904. The ends 906 ofbar 90 are pivoted to the seat, for example, to the seat backportion 320 as shown, about a transverse axis. Any suitable pivots may be used. Each pivot can have two stops that limit movement of thebar 90. The first stop keeps the bar from dropping onto thetray 50 when the bar is in the forward (use) position (FIG. 22 ). The second stop keeps the bar from dropping rearwardly below the upright (inactive) position (FIG. 23 ). Thus, the accessory bar with its toys or other appendages can be quickly swung down in front of the seat occupant, or quickly moved out of the way to the upright position. In addition, the pivot connection of thebar 90 to the seat backportion 320 can be a break-away connection so that, if thebar 90 inadvertently is pivoted rearwardly past the second pivot, a predetermined force on the bar 90 (for example, a force applied by a curious child attempting to hang on, or step on, the bar 90) allows thebar 90 to break-away from the seat backportion 320. In this manner, thehigh chair 10 will not be pulled over, rearwardly, if such force is applied to thebar 90. - The preferred embodiments have been set forth herein for the purpose of illustration. This description, however, should not be deemed to be a limitation on the scope of the invention. Various modifications, adaptations, and alternatives may occur to one skilled in the art without departing from the claimed inventive concept. The true scope and spirit of the invention are indicated by the following claims.
Claims (14)
1-64. (canceled)
65. An adjustable child high chair comprising:
a seat including a seat bottom portion and a seat back portion;
a seat platform above the seat bottom portion; and
an elevating mechanism beneath the seat platform for adjusting the height of the seat platform relative to the seat bottom portion.
66. An adjustable child high chair according to claim 65 , wherein the elevating mechanism comprises a movable elevating member beneath and supporting the seat platform, and a ramped surface on at least one of the elevating member and the seat platform, whereby movement of the elevating member changes the height of the seat platform.
67. An adjustable child high chair according to claim 66 , wherein the elevating member is movable fore and aft of the seat by a rotatable actuating member located at the front of the seat platform.
68. An adjustable child high chair according to claim 67 , wherein the elevating member includes a slot, and the actuating member comprises a wheel having an eccentric pin engaging the slot.
69. An adjustable child high chair according to claim 67 , wherein the elevating member includes a threaded hole, and the actuating member comprises a knob attached to a threaded shaft, the threaded shaft mating with the threaded hole.
70. An adjustable child high chair according to claim 65 , wherein the seat platform has a hole through which a crotch restraint member can extend.
71. An adjustable child high chair comprising:
a seat including a seat bottom portion and a seat back portion; and
an adjustable seat assembly above the seat bottom portion, the adjustable seat assembly comprising:
a base attached to the seat bottom portion;
a seat platform above the base; and
an elevating mechanism between the seat platform and the base for adjusting the height of the seat platform relative to the base.
72. An adjustable child high chair according to claim 71 , wherein the elevating mechanism comprises a movable elevating member supporting the seat platform, and a ramped surface on at least one of the elevating member, the base and the seat platform, whereby movement of the elevating member changes the height of the seat platform.
73. An adjustable child high chair according to claim 72 , wherein the elevating member is movable fore and aft of the seat by a rotatable actuating member located at the front of and pivoted to the base.
74. An adjustable child high chair according to claim 73 , wherein the elevating member includes a slot, and the actuating member comprises a wheel having an eccentric pin engaging the slot.
75. An adjustable child high chair according to claim 73 , wherein the elevating member includes a threaded hole, and the actuating member comprises a knob attached to a threaded shaft, the threaded shaft mating with the threaded hole.
76. An adjustable child high chair according to claim 71 , wherein the adjustable seat assembly has a hole through which a crotch restraint member can extend.
77-80. (canceled)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US10/940,649 US20050127722A1 (en) | 2003-03-26 | 2004-09-15 | High chair |
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
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US45732503P | 2003-03-26 | 2003-03-26 | |
US10/803,086 US20050006930A1 (en) | 2003-03-26 | 2004-03-18 | High chair |
US10/940,649 US20050127722A1 (en) | 2003-03-26 | 2004-09-15 | High chair |
Related Parent Applications (1)
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US10/803,086 Continuation US20050006930A1 (en) | 2003-03-26 | 2004-03-18 | High chair |
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US20050127722A1 true US20050127722A1 (en) | 2005-06-16 |
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US10/940,650 Abandoned US20050146168A1 (en) | 2003-03-26 | 2004-09-15 | High chair |
US10/940,649 Abandoned US20050127722A1 (en) | 2003-03-26 | 2004-09-15 | High chair |
US11/271,865 Abandoned US20060066142A1 (en) | 2003-03-26 | 2005-11-14 | High chair |
US11/567,057 Expired - Fee Related US7419210B2 (en) | 2003-03-26 | 2006-12-05 | High chair |
US11/567,037 Abandoned US20070085388A1 (en) | 2003-03-26 | 2006-12-05 | High Chair |
US11/567,081 Abandoned US20070096528A1 (en) | 2003-03-26 | 2006-12-05 | High Chair |
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US10/803,086 Abandoned US20050006930A1 (en) | 2003-03-26 | 2004-03-18 | High chair |
US10/940,650 Abandoned US20050146168A1 (en) | 2003-03-26 | 2004-09-15 | High chair |
Family Applications After (4)
Application Number | Title | Priority Date | Filing Date |
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US11/271,865 Abandoned US20060066142A1 (en) | 2003-03-26 | 2005-11-14 | High chair |
US11/567,057 Expired - Fee Related US7419210B2 (en) | 2003-03-26 | 2006-12-05 | High chair |
US11/567,037 Abandoned US20070085388A1 (en) | 2003-03-26 | 2006-12-05 | High Chair |
US11/567,081 Abandoned US20070096528A1 (en) | 2003-03-26 | 2006-12-05 | High Chair |
Country Status (3)
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US (7) | US20050006930A1 (en) |
CA (1) | CA2461860A1 (en) |
WO (1) | WO2004086916A2 (en) |
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US11641952B2 (en) | 2019-06-21 | 2023-05-09 | Kids2, Inc. | Modular cradle |
USD958897S1 (en) | 2020-09-17 | 2022-07-26 | Kids2, Inc. | Modular toy bar |
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Also Published As
Publication number | Publication date |
---|---|
US20060066142A1 (en) | 2006-03-30 |
US20070096527A1 (en) | 2007-05-03 |
CA2461860A1 (en) | 2004-09-26 |
US20070096528A1 (en) | 2007-05-03 |
US7419210B2 (en) | 2008-09-02 |
US20050146168A1 (en) | 2005-07-07 |
WO2004086916A2 (en) | 2004-10-14 |
US20050006930A1 (en) | 2005-01-13 |
WO2004086916A3 (en) | 2005-04-14 |
US20070085388A1 (en) | 2007-04-19 |
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