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Patentsuche

  1. Erweiterte Patentsuche
VeröffentlichungsnummerUS1670561 A
PublikationstypErteilung
Veröffentlichungsdatum22. Mai 1928
Eingetragen27. Juli 1925
VeröffentlichungsnummerUS 1670561 A, US 1670561A, US-A-1670561, US1670561 A, US1670561A
ErfinderArthur J. Adams
Zitat exportierenBiBTeX, EndNote, RefMan
Externe Links: USPTO, USPTO-Zuordnung, Espacenet
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US 1670561 A
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Beschreibung  (OCR-Text kann Fehler enthalten)

May 22, 1928.

A. J. ADAMS LEG BRACE FOR CHAIRS Filed July 27, 1925 fivanfi Patented May 22, 1928.

UNITED STATES PATENT OFFICE.

ARTHUR J. ADAMS, OF BAY CITY, MICHIGAN, ASSIGNOR TO WILLIAM S. FERRIS, OF ELKHART, INDIANA, NOW TRADING AS DOMORE CHAIR COMPANY.

LEG BRACE FOR CHAIRS.

Application filed July 27, 1925.

This invention relates to improvements in leg braces for chairs and consists of the matters hereinafter described and more particularly pointed out in the appended claims.

The object of the invention is to provide an improved bracing means between the various legs of a chair whether of the swiveling or non-swiveling type of seat, wh ch means includes peculiarly shaped bracing members, one end of which is fixed to one leg of the chair and the other end of each of which is fixed to an associated brace member also having an end fixed to another leg and by means of which the braces are not only fixed to the legs but also to each other in a manner providing a simple and strong and rigid brace between the various legs of the chair.

This object of the invention as well as others together with the many advantages thereof will more fully appear as I proceed with my specification.

In the drawings:

Fig. l is a view in side elevation of a chair of the swiveling type wherein the legs thereof are connected together by means of the improved brace embodying my invention.

Fig. 2 is a bottom plan sectional view of the chair as taken on the line 2-2 or Fig. 1 and shows the manner of attaching the brace members to the chair legs and to each other.

Fig. 3 is a view in perspective of a chair leg brace embodying my invention as it appears when removed from a chair.

Fig. 4 is a view in elevation of one of the brace members forming a part of my improved chair leg brace.

Referring now in detail to that embodiment of the invention illustrated in the ac companying drawings 1 indicates the base or supporting standard of a chair and 2 indicates the seat thereof to which a back rest member 3 may be secured in any suitable manner. The base includes a plurality of legs 4 l and in this instance there are four of said legs, each including a substantially long vertical top portion 5, a shorter vertical bottom portion 6, a substantially horizontal portion 7 and reversely curved portions 8 and 9 which connect said horizontal portion 7 with said top and bottom vertical portions. The top portion of all of said legs are secured in grouped relation upon vertically spaced spiders 1010 in which the seat carrying post 11 may swivel in any Serial No. 46,225.

suitable manner. The legs are so disposed about the post that the bottom ends extend radially thereof to provide a spread which insures a stable support for the chair as a whole. The usual casters 1.2 may be provided for said legs so that the chair may be easily moved about.

To hold the bottom ends of the legs against spreading or bending under the weight of the occupant of the chair, I provide a novel bracing means or spider 13 (see Fig. 3) as tollows:-Said bracing means or spider made up of a plurality of substantially boomerang or angularly formed brace members 14-14.- (see Fig. 4) each made of a flat strip of metal bent in the plane of its edges to provide a long end part it and a short end part 14 arranged at an angle thereto and a curved part 14 which connects said two end parts 14 and 1%". As shown herein and with a four legged standard, said end parts are arranged at a right angle to each other but in athree legged chair the angle between said ends would be 120 as is apparent. In the ends of said legs are provided holes let and 14 respectively and in said long end near the curved portion 14 is provided a third hole 14. The long end portion of each brace member is secured to the horizontal part 7 of an associated leg by a rivet passing through the hole ll and into and through said part, and extends radially inward toward the post, while the short end portion of said brace member engages upon the inner end part of the long end portion of an adjacent brace member so that the holes 1.4; and 14- register and receive the rivet 16, the curved portions of said brace members defining an enlarged central opening 17 (see Figs. 2-3) through which the post 11 extends. Instead of securing the brace members to the chair legs and to each other by rivets as mentioned, the rivet openings may be dispensed with and the parts spot welded. 'As shown herein opposite brace members are arranged in the same plane; that is the short ends of the opposite brace members engage the under side of the other two opposite brace members and the short ends of said other two brace members engage upon the top surface of the long portions of the first mentioned brace members. However, this is by way of illustration only, because as it is apparent the short end part of one brace may engage either the top or bottom surface of an adjacent brace member as is desired Without departing from the spirit of the invention. The brace members may be riveted or spot Welded together to provide a spider like brace before the braces are secured to the legs.

In connection .Withsaid braces I provide a heel rest, 18, between at least three of the legs, which rest is in the form of an 'arcuate band engagingupon and secured to the top surface of said horizontal leg parts 7. However, such a heel rest is not essential as -lar as the intended purpose of my improved brace is concerned.

My improved brace light in weight being made four short lengths of strap metal and it is so formed as to be entirely out of the Way, It is strong and rigid and greatly adds to the strength oi the chair.

While in describing my invention, I have referred. to certain details of construction as Well as arrangement and form of parts I do not wish to be limited thereto except as may be pointedout in the appended claims.

I claim. as my invention:

1. A chair embodying therein a plurality of legs and a brace for said legs comprising a plurality of brace members, equalling the number of said legs, each brace member beingconnected at one end only to a chair leg and at its other end to a second brace memher.

2. A chair embodying thereina plurality of legs and a brace for said legs comprising a plurality of brace members equalling the number of said legs, each brace member having a long end portion and a short end portion arranged at anangle thereto, with one end portion only secured to one of said legs and with the other end portion secured to an adjacent brace member.

A chair embodying therein, a plurality of legs and a brace for said legs comprising aplurality of brace members equalling the number of said legs, each brace member having a long end portion and a short end portion arranged at an angle thereto, With the long end. portion only secured to one of the chair legs and with the short end portion secured to an adjacent brace member.

l. A. chair embodying tl'ierein, a plurality of legs each including vertical top and bottom end portions and a horizontal port-ion connecting said end portions, the top ends of said legs bein grouped together to provide a standard to receive a seat post, and a brace for said. legs comprising a plurality of brace members, each con prising a long end portion and a short end. portion connected thereto by a curved po'rtlon with the long.

end of each brace member tired to the horizontal portion of an associated leg and with the short end portion secured to an adjacent brace n'icn'ibeiz.

ii. A. brace for chair legs comprising a 'ilurality of brace i'iieinbers each comprising a long end portion and a short end portion arranged at an angle thereto, with a curved ARTHUR J. ADAMS.

Referenziert von
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US4061304 *25. Aug. 19766. Dez. 1977Contraves AgSurgical chair for a doctor
Klassifizierungen
US-Klassifikation248/188.91, 248/188.7
Internationale KlassifikationA47C7/00
UnternehmensklassifikationA47C7/004
Europäische KlassifikationA47C7/00B2