GB2223399A

GB2223399A - A seat

Info

Publication number: GB2223399A
Application number: GB8816732A
Authority: GB
Inventors: Michael Scott
Original assignee: Individual
Current assignee: Individual
Priority date: 1988-07-14
Filing date: 1988-07-14
Publication date: 1990-04-11
Also published as: GB8816732D0

Abstract

A seat comprises a support beam (2) carrying at one end a first support member in the form of a seat (4). At its other end, the support beam (2) carries a first foot member (6). A first beam member (18) is pivotally connected at one end to the support beam (2). and at its other end carries a second foot member (28). A second support member (8), for supporting the knees, is carried on one end of a second beam member (10), whose other end is also pivotally connected to the support beam (2). The first and second beam members (10, 18) cross over one another and are retained in a predetermined position relative to one another by way of co-operable means, such as a plurality of recesses (30) in the second beam member (10), and a retention pin (32) carried by the first beam member (18) and engagable in a selected one of said recesses (30). The relative heights and angles of the seat and knee support can be adjusted without any dismantling of the seat. <IMAGE>

Description

A SEAT The present invention relates to a seat.

According to the present invention there is provided a seat comprising a support beam supporting a first support member at one end thereof and a first foot member at the other end thereof, and first and second beam members, one end of the first beam member being supported by said support beam and the other end of the first beam member supporting a second foot member, and one end of the second beam member being supported by said support beam and the other end of the second member supporting a second support member, wherein said first and second beam members cross over one another and are retained in a predetermined position relative to one another by cooperable means carried by said first and second beam members.

Preferably, the first support member comprises a seat member, and the second support member comprises one or more knee support members.

In an embodiment, said cooperable means carried by said first and second beam members comprises a pin carried by one of said beam members selectively engagable in one of a plurality of recesses carried by the other of the beam members. In a particularly preferred embodiment, one of said first and second beam members comprises two substantially parallel, coextensive, spaced beams, the spacing between the bears being sufficient to enable the other of said second and first beam members to extend therethrough.

Preferably, the pin is carried by said spaced beams and is arranged to selectively engage in one of the recesses of the plurality carried by said other bean; member.

Preferably, the one end of each of said first and second beam members is pivotally connected to said support beam. For example, the support beam may be apertured to receive said one end of each beam member, a respective pivot pin extending through the support beam and the one end of the respective beam member to enable pivoting of the beam member.

In a preferred embodiment the first support member is pivotally mounted on one end of said support beam.

In a particularly preferred construction, pivotable connection means are carried by said first support member and said support beam. These pivotable connection means comprise at least one pivot plate having an arcuate perimeter in which a plurality of recesses are defined, and a pin selectively engagable in one of said recesses. The pin is carried by one of said first support member and said support beam and the pivot plate is carried by the other of the support beam and the support member.

In a preferred embodiment two substantially identical pivot plates are mounted on the underside of said first support member to extend substantially parallel with respect to each other, the pivot plates being spaced so that one end of the support beam is receivable therebetween. Each side of said one end of the support beam carries a pivot pin for engagement in a selected one of the recesses of a respective pivot plate.

Preferably, said second support member is fixed by way of a support plate to said other end of said second beam member. gleans enabling adjustment of the second support member relative to the second beam member may be provided. In an embodiment, said second support member is fastened to said second beam member by fastening means which have some resilience.

An embodiment of the present invention will hereinafter be described, by way of example, with reference to the accompanying drawings, in which: Figure 1 shows an exploded perspective view of a seat of the invention, Figure 2 shows a side view of the seat; Figure 3 shows a perspective view from the front of the seat; and Figure 4 shows a front elevation of the seat.

The seat illustrated comprises a support beam 2 supporting at one end a first support member 4 which comprises a seat intended for sitting on. At its other end, the support beam 2 carries a first foot member 6. A second support member 8, which is intended for supporting the knees, is carried on one end of a second beam member 10. The other end of this beam member 10 is received within an aperture 12 in said support beam 2. A pin 14 with a threaded end extends through aligned bores in the support beam 2 and in the end of the beam member 10 to form a pivot pin for pivotally mounting the beam member 10 relative to the support beam 2. A nut 16 is screwed onto the threaded end of the pin 14 to retain the beam member 10. A first beam member 18 is similarly pivotally mounted in two apertures 20 provided in the support beam 2 by way of a pivot pin 22 and a respective nut 24.In this respect, the beam member 18 is constituted by two spaced, coextensive parallel beams 26. At its end opposite to its pivotal connection to the support beam 2, the first beam member 18 carries a second foot member 28.

It will be seen that the first and second beam members 10 and 18 cross over one another, with the second beam member 10 extending between the two beams 26 of the first beam member 18. The two beam members 10 and 18 are retained in a predetermined position relative to one another by cooperable means comprising a plurality of recesses 30 provided in the second beam member 10 and a retention pin 32 which extends through a selected pair of aligned holes 34 in the two beams 26 and which is retained by way of a nut 36. It will be seen that the relative position of the two beam members 10 and 18 can be adjusted by selecting in which one of the recesses 30 the adjusting pin 32 is received.

The knee support member 8 is fixed to the end of the second beam member 10 by way of a support plate 38 and securing means 40. As illustrated, these securing means 40 comprise bolts carrying cylindrical mounts made of rubber or other resilient material so that there is some resilience in the support of the knee support member 8 on the beam member 10.

The seat support member 4 is mounted on the free end of the support beam 2 to be pivotable with respect thereto. In this respect, a support plate 42 to be secured to the seat member 4 carries two substantially identical pivot plates 44 which are arranged to extend parallel to one another. These pivot plates 44 are spaced so that the end of the support beam. 2 can be received therebetween. It will be seen that each pivot plate 44 has an arcuate perimeter having a number of recesses 4E provided therein. Pivot pins 50 are arranged to secure the pivot plates 44 and hence the seat member 4 on the support beam 2. These pivot pins extend through aligned bores in the pivot plates 44 and in the support beam 2.A respective retaining pin 52 extends from each side of the support beams 2 and is arranged to engage in a selected one of the recesses 48 of the respective pivot plate 44 whereby the seat member 4 can be retained in the selected pivoted position.

It will be appreciated that the structure of the seat described and illustrated enables the pivot position of the seat member 4 relative to the support beam 2 to be adjusted as required. Furthermore, the heiyht of the seat member 4 and of the knee support member 8 above a supporting surface on which the feet members 6 ano 28 rest can be individually adjusted.

The height of the seat and knee support members relative to each other can also be adjusted to allow for the upper leg length of a person using the seat.

Furthermore, all of these adjustments can be made without any dismantling of the seat, for example, by removing the pivot pins, being necessary. The cooperable means comprising the pin 32 and the recesses 30 in the two cross over beam members gives a wide range of adjustment. However, it will be seen that three sets of aligned bores 34 extend through the two beams of the first beam member 18. Accordingly, the adjustment range can be made even greater by removing the pin 32 from one pair of aligned bores 34 and repositioning it in another pair of bores 34.

The invention has been described above with reference to the one example described and illustrated.

However, it will be appreciated that variations and modifications to the invention may be made within the scope of the invention.

Claims

1. A seat comprising a support beam supporting a first support member at one end thereof and a first foot member at the other end thereof, and first and second beam members, one end of the first beam member being supported by said support beam and the other end of the first beam member supporting a second foot member, and one end of the second beam member being supported by said support beam and the other end of the second member supporting a second support member, wherein said first and second beam members cross over one another and are retained in a predetermined position relative to one another by co-operable means carried by said first and second beam members.

2. A seat as claimed in Claim 1, wherein said first support member comprises a seat member, and the second support member comprises one or more knee support members.

3. A seat as claimed in Claim 1 or 2, wherein said co-operable means carried by said first and second beam members comprises a pin carried by one of said beam members selectively engagable in one of a plurality of recesses carried by the other of the beam members.

4. A seat as claimed in any preceding claim, wherein one of said first and second beam members comprises two substantially parallel, co-extensive, spaced beams, the spacing between the beams being sufficient to enable the other of said second and first beam members to extend therethrough.

5. A seat as claimed in Claim 4 as appended to Claim 3, wherein the pin of said co-operable means is carried by said spaced beams and is arranged to selectively engage in one of the recesses of said plurality of recesses carried by said other beam member.

6. A seat as claimed in any preceding claim, wherein the one end of each of said first and second beam members is pivotally connected to said support beam.

7. A seat as claimed in Claim 6, wherein said support beam is apertured to receive said one end of each beam member, a respective pivot pin extending through the support beam and the one end of the respective beam member to enable pivoting of the beam member.

8. A seat as claimed in any preceding claim, wherein said first support member is pivotally mounted on one end of said support beam.

9. A seat as claimed in Claim 8, wherein pivotable connection means are carried by said first support member and said support beam, said pivotable connection means comprising at least one pivot plate having an arcuate perimeter in which a plurality of recesses are defined, and a pin selectively engagable in one of said recesses.

10. A seat as claimed in Claim 9, wherein the pin is carried by one of said first support member and said support beam and the pivot plate is carried by the other of the support beam and the support member.

11. A seat as claimed in Claim 9 or 10, wherein two substantially identical pivot plates are mounted on the underside of said first support member to extend substantially parallel with respect to each other, the pivot plates being spaced so that one end of the support beam is receivable therebetween, and wherein each side of said one end of the support beam carries a pivot pin for engagement in a selected one of the recesses of a respective pivot plate.

12. A seat as claimed in any preceding claim, wherein said second support member is fixed by way of a support plate to said other end of said second beam member.

13. A seat as claimed in any preceding claim, wherein means are provided enabling adjustment of the second support member relative to the second beam member.

14. A seat as claimed in any preceding claim, wherein said second support member is fastened to said second beam member by fastening means which have some resilience.

15. A seat substantially as hereinbefore described with reference to the accompanying drawings.