DE1190757B - Valve block - Google Patents

Valve block

Info

Publication number
DE1190757B
DE1190757B DET24853A DET0024853A DE1190757B DE 1190757 B DE1190757 B DE 1190757B DE T24853 A DET24853 A DE T24853A DE T0024853 A DET0024853 A DE T0024853A DE 1190757 B DE1190757 B DE 1190757B
Authority
DE
Germany
Prior art keywords
rod
valves
valve block
seat
handle
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.)
Pending
Application number
DET24853A
Other languages
German (de)
Inventor
Josef Schmidt
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Continental Teves AG and Co oHG
Original Assignee
Alfred Teves GmbH
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Alfred Teves GmbH filed Critical Alfred Teves GmbH
Priority to DET24853A priority Critical patent/DE1190757B/en
Publication of DE1190757B publication Critical patent/DE1190757B/en
Pending legal-status Critical Current

Links

Classifications

    • GPHYSICS
    • G05CONTROLLING; REGULATING
    • G05GCONTROL DEVICES OR SYSTEMS INSOFAR AS CHARACTERISED BY MECHANICAL FEATURES ONLY
    • G05G9/00Manually-actuated control mechanisms provided with one single controlling member co-operating with two or more controlled members, e.g. selectively, simultaneously
    • G05G9/02Manually-actuated control mechanisms provided with one single controlling member co-operating with two or more controlled members, e.g. selectively, simultaneously the controlling member being movable in different independent ways, movement in each individual way actuating one controlled member only
    • G05G9/04Manually-actuated control mechanisms provided with one single controlling member co-operating with two or more controlled members, e.g. selectively, simultaneously the controlling member being movable in different independent ways, movement in each individual way actuating one controlled member only in which movement in two or more ways can occur simultaneously
    • G05G9/047Manually-actuated control mechanisms provided with one single controlling member co-operating with two or more controlled members, e.g. selectively, simultaneously the controlling member being movable in different independent ways, movement in each individual way actuating one controlled member only in which movement in two or more ways can occur simultaneously the controlling member being movable by hand about orthogonal axes, e.g. joysticks
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16KVALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K31/00Actuating devices; Operating means; Releasing devices
    • F16K31/44Mechanical actuating means
    • F16K31/52Mechanical actuating means with crank, eccentric, or cam
    • F16K31/524Mechanical actuating means with crank, eccentric, or cam with a cam
    • GPHYSICS
    • G05CONTROLLING; REGULATING
    • G05GCONTROL DEVICES OR SYSTEMS INSOFAR AS CHARACTERISED BY MECHANICAL FEATURES ONLY
    • G05G9/00Manually-actuated control mechanisms provided with one single controlling member co-operating with two or more controlled members, e.g. selectively, simultaneously
    • G05G9/02Manually-actuated control mechanisms provided with one single controlling member co-operating with two or more controlled members, e.g. selectively, simultaneously the controlling member being movable in different independent ways, movement in each individual way actuating one controlled member only
    • G05G9/04Manually-actuated control mechanisms provided with one single controlling member co-operating with two or more controlled members, e.g. selectively, simultaneously the controlling member being movable in different independent ways, movement in each individual way actuating one controlled member only in which movement in two or more ways can occur simultaneously
    • G05G9/047Manually-actuated control mechanisms provided with one single controlling member co-operating with two or more controlled members, e.g. selectively, simultaneously the controlling member being movable in different independent ways, movement in each individual way actuating one controlled member only in which movement in two or more ways can occur simultaneously the controlling member being movable by hand about orthogonal axes, e.g. joysticks
    • G05G2009/04703Mounting of controlling member
    • G05G2009/04707Mounting of controlling member with ball joint
    • GPHYSICS
    • G05CONTROLLING; REGULATING
    • G05GCONTROL DEVICES OR SYSTEMS INSOFAR AS CHARACTERISED BY MECHANICAL FEATURES ONLY
    • G05G9/00Manually-actuated control mechanisms provided with one single controlling member co-operating with two or more controlled members, e.g. selectively, simultaneously
    • G05G9/02Manually-actuated control mechanisms provided with one single controlling member co-operating with two or more controlled members, e.g. selectively, simultaneously the controlling member being movable in different independent ways, movement in each individual way actuating one controlled member only
    • G05G9/04Manually-actuated control mechanisms provided with one single controlling member co-operating with two or more controlled members, e.g. selectively, simultaneously the controlling member being movable in different independent ways, movement in each individual way actuating one controlled member only in which movement in two or more ways can occur simultaneously
    • G05G9/047Manually-actuated control mechanisms provided with one single controlling member co-operating with two or more controlled members, e.g. selectively, simultaneously the controlling member being movable in different independent ways, movement in each individual way actuating one controlled member only in which movement in two or more ways can occur simultaneously the controlling member being movable by hand about orthogonal axes, e.g. joysticks
    • G05G2009/04781Manually-actuated control mechanisms provided with one single controlling member co-operating with two or more controlled members, e.g. selectively, simultaneously the controlling member being movable in different independent ways, movement in each individual way actuating one controlled member only in which movement in two or more ways can occur simultaneously the controlling member being movable by hand about orthogonal axes, e.g. joysticks with additional rotation of the controlling member

Description

Ventilblock Die Erfindung bezieht sich auf einen Ventilblock mit mehreren Ventilpaaren. Der Ventilblock ist in erster Linie für die Betätigung von Sitzen gedacht, die durch Vertikal- und Horizontalbewegung eines Hebels aufwärts, abwärts und seitwärts verstellt werden, wie dies bei Sitzen für Omnibusse und Eisenbahnen schon bekannt ist. Ein anderes Verwendungsgebiet ist der Schaufellader oder der Bagger, dessen Baum in der Vertikal- und in der Horizontalebene geschwenkt wird und dessen Schild oder Löffel gekippt wird.Valve block The invention relates to a valve block with several Valve pairs. The valve block is primarily for the actuation of seats thought by moving a lever vertically and horizontally up and down and can be adjusted sideways, as is the case with seats for buses and trains is already known. Another area of application is the shovel loader or the Excavator, the boom of which is swiveled in the vertical and in the horizontal plane and whose shield or spoon is tipped.

Es ist bekannt, die Ventile eines Ventilblocks mit Nocken zu steuern, die auf einer verdrehbaren Betätigungswelle aufgereiht sind. Mit der Erfindung wird die Aufgabe gelöst, die gleiche Betätigungsstange vertikal und horizontal zu verschwenken und als dritte Bewegung eine Drehbewegung zu machen, so daß das zu bewegende Gerät entsprechende Bewegungen ausführt. Beispielsweise kann ein Omnibussitz bezüglich seiner Sitzhöhe und seiner Entfernung vom Pedal sowie bezüglich seiner Neigung verstellt werden.It is known to control the valves of a valve block with cams, which are lined up on a rotatable actuating shaft. With the invention solved the problem of pivoting the same operating rod vertically and horizontally and as a third movement to make a rotary movement so that the device to be moved executes appropriate movements. For example, a bus seat with respect to its seat height and its distance from the pedal as well as its inclination adjusted will.

Erfindungsgemäß wird dies durch die Vereinigung folgender Merkmale erzielt: Ein Bediengriff ist an einer Stange kugelbeweglich gelagert, die um drei Achsen drehbar ist, dabei trägt die Stange zu beiden Seiten des Lagers je eine Rundscheibe, außerdem trägt die Stange einen Ansatz mit einer Kulisse, die näherungsweise oder vollständig parallel zur Stange liegt und in der ein Kulissenstein gleitet, der am Ende eines zweiarmigen Hebels angeordnet ist, der sich in derselben Ebene bewegen kann, in der das Lager der Stange liegt, und schließlich sind zwei weitere zweiarmige Hebel vorgesehen, die auf den runden Scheiben schleifen, und zwar derart, daß sie in der Neutralstellung parallel zur Stange liegen und jeweils an zwei Punkten der beiden Scheiben aufliegen, die um 90° zueinander versetzt sind, dabei betätigt jeder der zweiarmigen Hebel zwei Ventile gegensinnig.According to the invention, this is achieved by combining the following features achieved: An operating handle is mounted on a rod so that it can move around a ball, the three Axles can be rotated, the rod carries a round disc on both sides of the bearing, in addition, the rod carries an approach with a backdrop that is approximately or is completely parallel to the rod and in which a sliding block slides, the is arranged at the end of a two-armed lever that move in the same plane can, in which the bearing of the rod lies, and finally two more two-armed ones Lever provided that grind on the round disks, in such a way that they in the neutral position parallel to the rod and at two points each both disks that are offset by 90 ° to each other rest, each actuated the two-armed lever has two valves in opposite directions.

Vorzugsweise ist eine Kulisse für die Betätigungsstange vorgesehen, deren Bahnen nach der Schwenkebene der Waagebalken der Ventile ausgerichtet sind. Mit Vorteil sind an die Ventile Arbeitszylinder zur Verstellung eines Sitzes so angeschlossen, daß der Sitz z. B. in einem Kraftfahrzeug dem Bewegungssinn des Griffes folgt, also beim Heben des Griffes sich hebt, beim Bewegen in horizontaler Richtung sich nach vorn oder hinten verschiebt und beim Drehen des Griffes sich neigt.A backdrop is preferably provided for the actuating rod, whose tracks are aligned with the pivot plane of the balance beam of the valves. Working cylinders for adjusting a seat are advantageously attached to the valves connected that the seat z. B. in a motor vehicle the sense of movement of the handle follows, so when lifting the handle rises, when moving in a horizontal direction moves forward or backward and tilts when turning the handle.

In einer bevorzugten Ausführungsform ist den Ventilen in an sich bekannter Weise ein Druck-Speicher vorgeschaltet, an den drei Arbeitszylinder kolbenstangenseitig direkt angeschlossen sind, wobei ein Federungs- und Dämpfungszylinder dem Zylinder für die Vertikalbewegung des Sitzes parallel geschaltet ist.In a preferred embodiment, the valves are known per se Way a pressure accumulator is connected upstream of the three working cylinders on the piston rod side are directly connected, with a suspension and damping cylinder attached to the cylinder is connected in parallel for the vertical movement of the seat.

Die Erfindung läßt die verschiedensten Ausführungsmöglichkeiten zu. Eine davon ist in der Zeichnung wiedergegeben, und zwar zeigt A b b. 1 den Ventilblock in einer perspektivischen und schematischen Darstellung, A b b. 1 a das kulissenartige Führungskreuz für die vom Bediengriff bewegte Stange, A b b. 2 den Schaltplan einer Betätigungseinrichtung für Kraftfahrzeugsitze und A b b. 3 eine Draufsicht auf den Ventilblock gemäß A b b. 1.The invention allows a wide variety of possible embodiments. One of these is shown in the drawing, namely A b b. 1 the valve block in a perspective and schematic representation, A b b. 1 a the backdrop-like Guide cross for the rod moved by the operating handle, A b b. 2 the circuit diagram of a Actuating device for motor vehicle seats and A b b. 3 is a plan view of the Valve block according to A b b. 1.

In dem Ventilblock l sind die Ventile 2,3 und 4 vereinigt, die alle von gleicher Bauart sind und sich durch ihre räumliche Lage unterscheiden. Wie das Ventil 2 enthalten auch die Ventile 3 und 4 Aufschlagventile 5 und 6, die über dieWaagebalken 7,8 und 9 zu öffnen und zu schließen sind. Die Waagebalken sind um die Gelenke 10 schwenkbar.In the valve block 1, the valves 2, 3 and 4 are combined, all of which are of the same design and differ in their spatial position. Like valve 2 , valves 3 and 4 also contain impact valves 5 and 6 which can be opened and closed via balance beams 7, 8 and 9. The balance beams can be pivoted about the joints 10.

Die Verschwenkung der Waagebalken, die bei 7 und 8 in vertikaler Richtung, bei 9 in horizontaler Richtung vor sich geht, wird durch die Stange 11 mit dem Handgriff 12 vorgenommen. Die Stange trägt hintereinander aufgereiht zwei Scheiben 13 und 14 und einen Nocken 15. Sie ist um das Kugelgelenk 16 schwenkbar und drehbar, das in dem Ventilblock 1 gelagert ist. Vier Rückstellfedern 17 und zwei Rückstellfedern 18, die in bekannter Weise gefesselt werden, sorgen für die Rückstellung der Stange 11 nach der Betätigung der Ventile. Die A b b. 1 a zeigt ein kulissenartiges Führungskreuz 19, durch das verhindert wird, daß die Horizontal- und Vertikalbewegungen der Stange 11 miteinander interferieren.The pivoting of the balance beam, which takes place in the vertical direction at 7 and 8 and in the horizontal direction at 9, is carried out by the rod 11 with the handle 12. The rod carries two disks 13 and 14 lined up one behind the other and a cam 15. It can be pivoted and rotated about the ball joint 16, which is mounted in the valve block 1. Four return springs 17 and two return springs 18, which are tied in a known manner, ensure the return of the rod 11 after the actuation of the valves. The A b b. 1 a shows a link-like guide cross 19, which prevents the horizontal and vertical movements of the rod 11 from interfering with one another.

Der Waagebalken 7 ist mit seinem Ende 20 durch eine Kugel 21 in einer Schleife 22 gelagert, die an dem Nocken 15 starr befestigt ist. Da die Schwenkebene des Hebels 7 durch die Mitte des Kugelgelenks 16 verläuft, besteht die Möglichkeit, die Auf- oder Abwärtsbewegung der Stange 11 in der Kulisse 19 mit einer Drehbewegung zu kombinieren, um das Ventil 2 zusammen mit einem der Ventile 3 und 4 zu betätigen.The balance beam 7 is supported at its end 20 by a ball 21 in a loop 22 which is rigidly attached to the cam 15. Since the pivot plane of the lever 7 runs through the center of the ball joint 16 , it is possible to combine the upward or downward movement of the rod 11 in the link 19 with a rotary movement in order to operate the valve 2 together with one of the valves 3 and 4 .

In A b b. 2 ist das Schema einer Sitzbetätigungsanlage dargestellt.In A b b. 2 shows the diagram of a seat actuation system.

Es sind der Hubzylinder mit 23, der Horizontalzylinder mit 24 und der Zylinder für die Schrägstellung des Sitzes mit 25 gekennzeichnet. Die entsprechenden Ventile 2,3 und 4 sind drei Dreiwegeventile. Auf einer Seite sind die Ventile durch die Druckmittelleitungen 26 mit dem Behälter 27 und die Druckmittelleitungen 28 mit dem Speicher 29 verbunden, auf der anderen Seite durch die Druckmittelleitungen 30 mit der kolbenseitigen Kammer der Arbeitszylinder 23, 24 und 25. Die kolbenstangenseitigen Kammern der Zylinder 23,24 und 25 stehen durch die Druckmittelleitungen 31 untereinander und unmittelbar mit dem Druckspeicher 29 in Verbindung. An den Druckmittelleitungen 30 und 31, die an den Druckmittelzylinder 23 für die Hubbewegung angeschlossen sind, ist ein Federungs- und Stoßdämpferzylinder 32 gelegt, so daß Stöße mittels des Druckspeichers 29 aufgefangen und in bekannter Weise gedämpft werden. Die Federn 33,34 gleichen die Druckunterschiede in den Kammern des Differentialzylinders 23 aus bzw. bewirken die Kolbenrückstellung.The lifting cylinder is marked with 23, the horizontal cylinder with 24 and the cylinder for the inclined position of the seat with 25. The corresponding valves 2, 3 and 4 are three three-way valves. On one side the valves are connected through the pressure medium lines 26 with the container 27 and the pressure medium lines 28 with the accumulator 29, on the other side through the pressure medium lines 30 with the piston-side chamber of the working cylinders 23, 24 and 25. The piston rod-side chambers of the cylinders 23 , 24 and 25 are connected to one another and directly to the pressure accumulator 29 through the pressure medium lines 31. A suspension and shock absorber cylinder 32 is placed on the pressure medium lines 30 and 31, which are connected to the pressure medium cylinder 23 for the lifting movement, so that shocks are absorbed by the pressure accumulator 29 and attenuated in a known manner. The springs 33, 34 equalize the pressure differences in the chambers of the differential cylinder 23 or cause the piston to be reset.

Bei Vertikal- und Horizontalbewegungen der Stange drücken die Scheiben 13 oder 14 immer in einer bestimmten Richtung auf die Waagebalken 8 und 9, die doppelarmig ausgebildet sind. Drehbewegungen der Stange 11 werden über den Nocken 15 mit der Schleife 22 auf die Kugel 21 am Ende 20 des doppelarmigen Hebels 7 übertragen, so daß je nach der hierzu entstehenden Auf- und Abwärtsbewegung der Kugel das Aufschlagventil s oder das Aufschlagventil 6 betätigt wird.During vertical and horizontal movements of the rod, the disks 13 or 14 always press in a certain direction on the balance beams 8 and 9, which are double-armed. Rotational movements of the rod 11 are transmitted via the cam 15 with the loop 22 to the ball 21 at the end 20 of the double-armed lever 7, so that the impact valve s or the impact valve 6 is actuated depending on the resulting upward and downward movement of the ball.

Wenn der Ventilblock 1 in der in A b b. 2 dargestellten Weise an die Betätigungszylinder 23,24, 25 für die Sitzverstellung angeschlossen ist, ergibt sich, daß der Sitz sich im Sinne der Bewegungen der Stange 11 bewegen läßt.If the valve block 1 is in the A b b. 2 is connected to the actuating cylinders 23, 24, 25 for seat adjustment, the result is that the seat can be moved in the direction of the movements of the rod 11.

Claims (4)

Patentansprüche: 1. Ventilblock mit mehreren Ventilpaaren, gekennzeichnet durch die Vereinigung folgender Merkmale: a) ein Bediengriff (12) an einer Stange (11), die um drei Achsen drehbar, also kugelbeweglich gelagert ist; b) zu beiden Seiten des Lagers (16) trägt die Stange (11) je eine runde Scheibe (13, 14); c) die Stange (11) trägt außerdem einen Ansatz (15) mit einer Kulisse (22), die näherungsweise oder vollständig parallel zur Stange liegt und in der ein Kulissenstein (21) gleitet, der am Ende eines zweiarmigen Hebels (20) angeordnet ist, der sich in derselben Ebene bewegen kann, in der das Lager der Stange liegt; d) zwei weitere zweiarmige Hebel (8,9) schleifen auf den runden Scheiben (13,14) derart, daß sie in der Neutralstellung parallel zur Stange (11) liegen und jeweils an zwei Punkten der Scheibe (13,14) aufliegen, die um 90° zueinander versetzt sind; e) jeder der zweiarmigen Hebel (7, 8, 9) betätigt zwei Ventile gegensinnig. Claims: 1. Valve block with several pairs of valves, characterized by the combination of the following features: a) an operating handle (12) on a rod (11) which is rotatable about three axes, that is, mounted so as to be ball-movable; b) on both sides of the bearing (16) the rod (11) carries a round disc (13, 14); c) the rod (11) also carries a projection (15) with a gate (22) which is approximately or completely parallel to the rod and in which a sliding block (21) slides, which is arranged at the end of a two-armed lever (20) which can move in the same plane as the bearing of the rod; d) two further two-armed levers (8,9) grind on the round disks (13,14) in such a way that they are parallel to the rod (11) in the neutral position and each rest at two points on the disk (13,14) which are offset from one another by 90 °; e) each of the two-armed levers (7, 8, 9) actuates two valves in opposite directions. 2. Ventilblock nach Anspruch 1, gekennzeichnet durch eine Kulisse (19) für die Betätigungsstange (11), deren Bahnen nach der Schwenkebene der Waagebalken der Ventile (3, 4) ausgerichtet sind (A b b. 1 a). 2. Valve block after Claim 1, characterized by a link (19) for the actuating rod (11), whose tracks are aligned with the pivot plane of the balance beam of the valves (3, 4) are (A b b. 1 a). 3. Ventilblock nach den Ansprüchen 1 und 2, dadurch gekennzeichnet, daß an die Ventile (2, 3,4) Arbeitszylinder (23, 24, 25) zur Verstellung eines Sitzes so angeschlossen sind, daß der Sitz z. B. in einem Kraftfahrzeug dem Bewegungssinn des Griffes (12) folgt, also beim Heben des Griffes sich hebt, beim Bewegen in horizontaler Richtung sich nach vorn oder hinten verschiebt und beim Drehen des Griffes sich neigt. 3. Valve block according to claims 1 and 2, characterized in that that on the valves (2, 3, 4) working cylinder (23, 24, 25) for adjusting a seat are connected so that the seat z. B. in a motor vehicle the sense of movement of the handle (12) follows, so when lifting the handle rises when moving in a horizontal position Direction shifts forwards or backwards and when turning the handle itself tends. 4. Ventilblock nach den Ansprüchen 1 bis 3, dadurch gekennzeichnet, daß den Ventilen (2, 3,4) in an sich bekannter Weise ein Druckspeicher (29) vorgeschaltet ist, an den drei Arbeitszylinder (23, 24, 25) kolbenstangenseitig direkt angeschlossen sind, und daß ein Federungs-und Dämpfungszylinder (32) dem Zylinder (23) für die Vertikalbewegung des Sitzes parallel geschaltet ist. In Betracht gezogene Druckschriften: Deutsche Patentschrift Nr. 625 101; USA.- Patentschriften Nr. 2 451162, 2 700 904.4. Valve block according to claims 1 to 3, characterized in that a pressure accumulator (29) is connected upstream of the valves (2, 3, 4) in a manner known per se, directly connected to the three working cylinders (23, 24, 25) on the piston rod side are, and that a suspension and damping cylinder (32) is connected in parallel to the cylinder (23) for the vertical movement of the seat. Documents considered: German Patent No. 625 101; USA.- Patent Nos. 2,451,162, 2,700,904.
DET24853A 1963-09-12 1963-10-08 Valve block Pending DE1190757B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DET24853A DE1190757B (en) 1963-09-12 1963-10-08 Valve block

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE1190757X 1963-09-12
DET24853A DE1190757B (en) 1963-09-12 1963-10-08 Valve block

Publications (1)

Publication Number Publication Date
DE1190757B true DE1190757B (en) 1965-04-08

Family

ID=25999777

Family Applications (1)

Application Number Title Priority Date Filing Date
DET24853A Pending DE1190757B (en) 1963-09-12 1963-10-08 Valve block

Country Status (1)

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DE (1) DE1190757B (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19636859C1 (en) * 1996-07-12 1998-03-26 Riedel & Soehne Ohg Cross lever valve control device
US6019133A (en) * 1996-07-12 2000-02-01 Riedel & Sohne oHG Cross lever valve control means

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE625101C (en) * 1933-10-11 1936-02-04 Jacob Delafon Cie Ceramique De Device for mixing two liquids
US2451162A (en) * 1943-12-08 1948-10-12 Bendix Westinghouse Automotive Valve mechanism
US2700904A (en) * 1952-04-15 1955-02-01 James D Hough Control mechanism

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE625101C (en) * 1933-10-11 1936-02-04 Jacob Delafon Cie Ceramique De Device for mixing two liquids
US2451162A (en) * 1943-12-08 1948-10-12 Bendix Westinghouse Automotive Valve mechanism
US2700904A (en) * 1952-04-15 1955-02-01 James D Hough Control mechanism

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19636859C1 (en) * 1996-07-12 1998-03-26 Riedel & Soehne Ohg Cross lever valve control device
US6019133A (en) * 1996-07-12 2000-02-01 Riedel & Sohne oHG Cross lever valve control means

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