GB2078105A

GB2078105A - Frame for a chair, table or the like

Info

Publication number: GB2078105A
Application number: GB8118840A
Authority: GB
Original assignee: Individual
Current assignee: Individual
Priority date: 1980-06-18
Filing date: 1981-06-18
Publication date: 1982-01-06
Also published as: IT1144251B; FR2484808B3; IT8167849A0; NL8003515A; FR2484808A1; IT8153375V0; JPS5725811A; DE3123848A1

Abstract

A frame (1) for a chair (2) as shown, table or the like, which frame is adjustable and capable of providing a substantially horizontal support surface (4) above inclined ground, is provided with adjustment means (5) pivotally connected to a support (3) which carries the support surface (4). Preferably, the adjustment means (5) include at least one adjusting strut (6) and at least one supporting beam (7) which strut(s) and beam(s) are pivotally connected to the support (3). The adjusting strut (6) can be located and retained in one of a series of notches (10) provided in the supporting beam (7). The supporting beam (7) may be provided at either end with prongs (12) to aid anchorage of the frame (1) to an inclined soil surface. Additional support legs (15) may be provided in order that the frame (1) can be used on horizontal ground. <IMAGE>

Description

SPECIFICATION Frame for a chair, table or the like The invention relates to a frame for a chair, table orthe like, which is to be supported on a soil surface and in its operating position substantially horizontally supports a support.

A frame of this kind is known in various embodiments. The known frames, however, are only suitable for use on a substantially horizontally extending soil surface, and for this reason an angler, for example, who wishes to seat himself on a sloping bank at the water-side cannot use a chair equipped with a known frame and therefore will have to sit down on the soil with little comfort.

The invention has the object of providing a frame of the kind mentioned above which avoids this inconvenience in a simple but efficient manner.

Forthis purpose the frame of the invention is characterized in that the frame is provided with adjusting means pivotally connected to the support and permitting the frame to be accommodated to the course of the soil surface so asto maintain the horizontal position of the support.

The user of a chair, for example, provided with the frame of the invention who wishes to sit down on a sloping bank at the water-side, can adjust the frame to the course of this soil surface in a simple manner.

According to the invention the adjusting means include at least one adjusting strut pivotally connected to the front part of the support and supporting the support, the adjusting strut being lockable in different positions with respect to the support for the purpose of accommodating to the course of the soil surface.

In this case, a preferred embodiment of the invention is characterized in that the adjusting means include at least one supporting beam to be supported on the soil surface, the supporting beam being pivotally connected to the rear part of the support and including means for locking the adjusting strut.

In a simple embodiment the said locking means include a plurality of notches formed in each supporting beam.

Preferably, each supporting beam has at least one prong directed away from the support so as to provide for an anchoring of the frame on a slanting soil surface.

The invention will hereinafter be explained by way of the drawing illustrating an embodiment of the frame of the invention for a chair in two different positions in side view.

The illustrated frame 1 for a chair 2, as shown in the drawing, can be supported on a horizontal as well as a slanting soil surface, a seat 4 fastened on a support 3 being supported substantially horizontally in either case. The frame 1 is provided with adjusting means 5 pivotally connected to the support 3 for adjusting the frame 1 to the course of the soil surface so as to maintain the horizontal position of the seat 4.

The adjusting means 5 include two adjusting struts 6 supporting the support 3 and two supporting beams 7 to be supported on the soil surface, the drawing showing only one of each. The adjusting struts 6 on both sides are pivotally connected to the front part of the support 3, and the supporting beams 7 on both sides are pivotally connected to the rear part of the support 3 by a shaft 8 extending along the entire width of the chair 2. The adjusting struts 6 for the purpose of accommodating to the course of the soil surface can be locked in different positions with respect to the support 3 in that the lower ends 9 of the adjusting struts 6 each can be received in a notch, a plurality of which are formed in the end parts 11 of both supporting beams 7, opposed from the shaft 8.

The supporting beams 7 each have two prongs 12 formed at their ends and directed away from the support 3. Thereby the frame 1 can be firmly anchored to a slanting soil surface, so as to prevent the chair 2 from sliding downwardly. Furthermore, the supporting beams 7 are kinked at 13 towards the support 3 so as to leave a free space below the supporting beams 7. The chair 2 therefore also can be positioned on an uneven or somewhat convex soil surface.

For horizontally supporting the seat 4 on a horizontal soil surface the adjusting means 5 include two supporting legs 15, the drawing showing only one of them. The supporting legs 15 on both sides are pivotally connected to the support 3 by the shaft 8.

The supporting legs 15 for this purpose can be pivoted between a rest position and an operative position, which two positions are illustrated in the drawings. As can be seen in the left part of the drawing, the supporting legs 15, in the use of the chair 2 on a slanting soil surface, are pressed in the rest position against the supporting beams 7 so as not to be operative for supporting the support 3. In order to keep the space 14free,the supporting legs 15 are kinked at 16 in a manner corresponding to the kink 13 in the supporting beams. The supporting legs 15 at the end remote from the shaft 8 are provided with a projecting prong 17 so as to further improve the anchoring of the frame 1 on a slanting soil surface. If desired, the supporting legs 15 in a simple embodiment of the frame of the invention to be used on a slanting surface only can be left away.

According to the embodiment illustrated in the drawing the supporting beams 7 as well as the supporting legs 15 can be made from a U-profile, the inner width of the U-profile of the supporting legs 15 permitting the supporting beams 7 to be received therein, when the supporting legs 15, in the use on a slanting soil surface, are pivoted towards the supporting beams 7. The open side of the U-profile of the supporting beams 7 is directed towards the support3,the notches 10 being arranged in the legs of the U-profile. The operative position of the supporting legs 15 illustrated in the right part of the drawing is defined by an abutment provided by the web of the U-profile of the supporting legs 15 and the web of the U-profile of the supporting beams 7.

Both supporting beams 7 and both supporting legs 15 in the described embodiment for reinforcing purposes are interconnected by a transverse rod 18, 19, respectively. The adjusting struts 6 also are inter connected in having been made from a tube bentto a U-shaped bow, the upstanding legs of the bow sloping inwardly to form the adjusting struts 6.

The chair 2 is provided with a back member 20 pivotally connected to the shaft 8 by two struts 21.

The struts 21 change into abutment ends 22 engaging the support 3 in the operational position of the back member 20.

The invention is not limited to the embodiment described above, which can be modified in various ways within the scope of the invention.

The frame of the invention, for example, is not only suitable for a chair but in general can be used for supporting articles that occasionally are to be positioned on a slanting soil surface like a table or a fishing case, for example.

Claims

1. Frame for a chair, table or the like, which is to be supported on a soil surface and in its operating position substantially horizontally supports a support, characterised in that the frame is provided with adjusting means pivotally connected to the support and permitting the frame to be accommodated to the course of the soil surface so as to maintain the horizontal position of the support.

2. Frame of claim 1, characterised in that the adjusting means include at least one adjusting strut pivotally connected to the front part of the support and supporting the support, the adjusting strut being lockable in different positions with respect to the support for the purpose of accommodating to the course of the soil surface.

3. Frame of claim 2, characterised in that the adjusting means include at least one supporting beam to be supported on the soil surface, the supporting beam being pivotally connected to the rear part of the support and including means for locking the adjusting strut

4. Frame of claim 3, characterised by two adjust- ing struts which together form a bow, and by two supporting beams, which struts and beams on both sides are pivotally connected to the front and rear part, respectively, of the support.

5. Frame of claim 3 or4, characterised in that the said locking means include a plurality of notches formed in each supporting beam.

6. Frame of claim 5, characterised in that the notches are formed in the end part of the supporting beam, which end part is opposed from the connection of the supporting beam to the support.

7. A frame as claimed in any of claims 3 to 6, characterised in that each supporting beam has at least one prong directed away from the support.

8. Frame of claim 7, characterised in that each supporting beam has two prongs arranged at its ends.

9. Frame of one of the claims 3-8, characterised in that each supporting beam is kinked towards the support.

10. A frame as claimed in any of claims 2 to 9, characterised in that the adjusting means include two supporting legs pivotally connected to the sup port on both sides, the supporting legs being pivot able between a rest position and an operative posi tion defined by an abutment, the supporting legs in the operative position being adapted to support the frame on a substantially horizontal soil surface.

11. Frame of claim 10, characterised in that the pivoting axis of the supporting legs coincide with the pivoting axis of the supporting beams.

12. Frame of claim 10 or 11, characterised in that each supporting leg at the end remote from the connection to the support is provided with a projecting prong.

13. Frame of claim 10, 11 or 12, characterised in that the supporting legs are kinked in a mannercor- responding to the kink in the supporting beams.

14. A frame as claimed in any of claims 10 to 13, characterised in that the supporting legs are made from a U-profile, the open side of which is directed towards the supporting beams.

15. A frame as claimed in any of claims 3 to 14, characterised in that each supporting beam is made from a U-profile, the open side of which is directed towards the support.

16. Frame of claim 14, or 15, characterised in that the supporting beams in the rest position of the supporting legs are disposed at least partially within the U-profile of the supporting legs.

17. Frame of claim 15 or 16, characterised in that the abutment defining the operative position of the supporting legs is provided by the web of the U-profile of the supporting legs and the web of the U-profile of the supporting beams.

18. Aframe for a chair, table or the like substantially as herein before described with reference to and as illustrated in the accompanying drawing.