CN1330907A

CN1330907A - Chair with synchronous swing seat and back

Info

Publication number: CN1330907A
Application number: CN 01124319
Authority: CN
Inventors: A·皮雷蒂
Original assignee: PROCOD Srl
Current assignee: PROCOD Srl
Priority date: 2000-06-09
Filing date: 2001-06-09
Publication date: 2002-01-16

Abstract

Chair with synchronized rocking seat and backrest, comprising: a base support(14), a backrest supporting structure(18), connected to the base support(14) to rock on a transversal axis(A), and a seat supporting structure(16) rocking on the base support(14) in a synchronized way with the backrest supporting structure(18). The backrest supporting structure has a bent metallic rod on each side of the chair, the said bent metallic rod comprises: an anchoring portion(26) fastened to the base support(14), a riser section(28) which extends upwards, and an elastically deformable area(30) permitting the riser section(28) to rock on said transversal axis(A) with respect to the anchoring portion(26). The seat supporting structure(16) presents, on each side of the chair, a metallic rod(56) comprising: an anchoring portion(58) fastened to the base support(14), a lower section(60), an upper section(64) and an elastically deformable connecting portion(62) arranged between the lower section(60) and the upper section(64). Connection devices(84, 85) are provided between the upper section(64) and the seat supporting structure(16) and the backrest supporting structure.

Description

Chair with synchronous swing seat and backrest

The present invention relates to a kind of chair with synchronous swing seat and backrest, particularly a kind of like this chair, it comprises:

-one bottom support bracket;

-one back support member, it is connected to bottom support bracket so that wave on a transverse axis, and

-one seat supporting member, it waves on bottom support bracket to wave mobile synchronous mode with the back support member.

In this chair, the structure that is used to obtain seat and backrest synchronous swing is comparatively complicated and bigger usually, and is made of a large amount of elements.

The object of the present invention is to provide a kind of chair of the above-mentioned type, it is simple in structure, comfortable and cost is low.

According to the present invention, this purpose is to realize by the chair with the feature that forms the claim theme.

Now, the present invention is elaborated with reference to the accompanying drawing that only provides by non-limiting embodiment, wherein:

-Fig. 1 is the perspective view of chair among the present invention;

-Fig. 2 is the side view of chair shown in Fig. 1;

-Fig. 3 is a side view, and it has illustrated the synchronous swing motion of the seat and the backrest of chair of the present invention;

-Fig. 4 is the partial top view at chair shown in the Fig. 1 that does not have under seat and the backrest lid situation;

-Fig. 5 is the perspective exploded view of part shown in the arrow V among Fig. 1;

-Fig. 6 and 7 is the section of Fig. 1 center line VI-VI and VII-VII;

-Fig. 8 is by the amplification details of part shown in the arrow VII among Fig. 2;

-Fig. 9 is the section according to Fig. 2 center line IX-IX;

-Figure 10 is the section according to Fig. 9 center line X-X.

With reference to Fig. 1-4, identified a kind of chair by 10, it comprises that one can regulate the central support 12 of height.One bottom supporting 14 is connected to the top of central support 12.Bottom supporting 14 itself is connected to seat supporting member 16 and back support member 18.Bottom supporting 14 is in fact by a pair of overlapping, and fastening metal-

back

20,22 is made mutually.Lower case 20 for example is fastened to the top of central support 12 by the screw (not shown) and upper case 22 is fastened to lower case 20.

Seat supporting member 16 and back support member 18 are formed by the corresponding metal bar, and these metallic rod are respectively by the moulding of the following stated mode.Seat supporting member 16 and back support member 18 are all with respect to a perpendicular symmetry.Therefore, a side of chair only has been described, it is symmetrical fully should understanding opposite side.

Back support member 18 includes a metal tube 24 in each side of chair, and this metal tube has an anchorage part 26 (Fig. 4), the straight line portion 27 that an elastic deformation area 30, extends from elastic deformation area 30 towards the chair rear portion, and a rising part 28.Anchorage part 26 is fixed to bottom supporting 14.It preferably is fixed by fastening anchorage part 26 between shell 20,22.These shells are equipped with balance housing 32 (Fig. 5), and anchorage part 26 is assembled and is anchored between the balance housing 32.Be provided with the elastically deformable part in the front portion of bottom supporting 14, rising part 28 extends upward from the rear end of straight line portion 27.The elastic deformation area 30 of each root metallic rod 18 of moulding waves at the transverse axis A that is positioned at bottom supporting 14 front portions with respect to anchorage part 26 to allow straight line portion 27 and rising part 28.In the embodiment shown in the figures, make elastic deformation area 30 be shaped to the cylindrical helix shape, its with wave the coaxial and elasticity that have multi-turn and be enough to obtain a desirability of an A backrest waved on axle A backward.

Back support member 18 comprises a framework 34, and it comprises a metal tube, and described pipe fitting is folded to obtain 36, two arcuate parts 38 of two straight line portioies and an axis of pitch part 40.Two straight line portioies 36 of framework 34 slide on corresponding rising part 28.Framework 34 comprises pair of locking device 42, and they are positioned on the straight line portion 36 and are suitable for framework 34 is fixed on select location.As shown in Figures 9 and 10, each locking device 42 includes one and is connected to a sleeve pipe 44 on the Rocker arm 46, and described rocking arm is hinged on the sleeve pipe 44 on the transverse axis 48.Rocker arm 46 has a mate 50, and it is pushed to metal tube 28 by helical spring 52.As shown in Figures 9 and 10, each rising part 28 all has one group of notch 54, and these notches are designated to be engaged in the mate.By catching sleeve pipe 42 and presses lever 46 can change framework 34 vertical positions of framework 34, thereby overcome the effect of respective springs, so that release holding mechanism 42 with respect to rising part 28.Behind release holding mechanism 42 by this way, framework 34 can slide up and down and is fastened to by the selected position of release lever 46 with vertical direction.

The supporting member at seat 16 includes a metal rod 56 in each side of chair, and it has 60, one strain coupling parts 62, lateral part, an anchorage part 58, one bottom and a top 64, and this part is along a side longitudinal extension of chair.The rear portion of top part 64 links together by a framework that is formed by the pipe fitting 66 with the U-shaped bending.Anchorage part 58 is fixed on bottom supporting 14.It is to guarantee by fastening base section 58 between shell 20,22.These shells are equipped with the fixedly balance housing of anchorage part 58.The moulding assembly area so as top part 64 can wave with respect to bottom part 60.

Be fixed to the end of a reinforcing cross bar 86 by a support 85 in the top part 64 of the seat of each side of chair supporting member 16.Each end of cross bar 86 all is connected to a sliding shoes 84, and described sliding shoes can be free to slide along the straight line portion 27 of back support member 18.Shown in Fig. 6 and 7, each sliding shoes 84 all is hinged to an associated end of cross bar 86.Bending between sliding shoes 84 and the cross bar 86 connects by lining 88 acquisitions.

As shown in Figure 3, the backward oscillating motion meeting of back support member 18 on axis A causes sliding shoes to slide waving backward along straight line portion 27 and seat supporting member 16.The oscillating motion that makes seat supporting member 16 and back support member 18 by the interconnective effect that is obtained by sliding shoes 84 is mutually synchronization mutually.

Between cross bar 85 and bottom supporting 14, insert a reinforcement spring 89.Reinforcement spring has two L shaped ends, and these ends are inserted in the inside particular bore of described supporting.The elastic resistance that can provide a knob that is equipped with an eccentricity control device (not shown) to come regulating spring 89.

With reference to accompanying drawing 1, seat supporting member 16 has the fabric 90 that one deck stretches between the top 64 of supporting member 16.Fabric 90 preferably includes a rod-like element that is inserted in from the rear portion on the supporting member 16.Shaft-like fabric pieces 90 is fixed on the seat supporting member 16 or is fixed on the bottom supporting 14 along leading edge.As shown in Figure 8, bottom supporting has a pair of laterally parallel bar 92, and the end portion 94 of shaft-like fabric pieces 90 is inserted in this between the bar.End portion 94 is inserted bars 96 and is fixed on the cross bar 92 by part endways 94 is inboard.

The framework 34 that can vertically slide on back support member 18 is fixed with a shaft-like fabric pieces 98 of tightening along the arch side 38 of framework 34.As described above with reference to Figure 8, pipe fitting 98 is inserted on the framework 34 by lower edge, and is fixed along the top edge between a pair of cross bar 100.After being inserted on seat supporting member and the framework 34, preferably sew up the lateral margin of pipe fitting 90 and 98.

Claims

1, have the seat of synchronous swing and the chair of backrest, it comprises:

-one bottom support bracket (14);

-one back support member (18), it is connected to bottom support bracket (14) to wave on a transverse axis (A), reach

-one seat supporting member (16), it waves on bottom support bracket (14) to wave mobile synchronous mode with back support member (18),

It is characterized in that:

Described back support member has a bending metals bar in each side of chair, described metallic rod comprises: one is fastened on the anchorage part (26) on the bottom support bracket (14), one upwardly extending rising part (28), one strain zone (30), this zone allows rising part (28) to go up, wave with respect to anchorage part (26) at described transverse axis (A)

Described seat supporting member (16) has a metallic rod (56) in each side of chair, this metallic rod comprises: one is fastened on the anchorage part (58) on the bottom support bracket (14), one bottom part (60), one top part (64) and one is arranged on the strain coupling part (62) between bottom part (60) and the top part (64)

The jockey (84,85) that between the top part (64) of seat supporting member (16) and back support member, is provided with.

2, chair according to claim 1 is characterized in that: described jockey comprises a sliding shoes (84) in each side of chair, and this sliding shoes can be free to slide on the straight line portion of back support member (18).

3, chair according to claim 1 is characterized in that: back support member (18) comprises a framework (34), and its position can vertically be conditioned along the rising part (28) of described back support member.

4, chair according to claim 1 is characterized in that: seat supporting member (16) is fixed with a shaft-like fabric pieces (90) of tightening between the described top part (64) on each side of chair.

5, chair according to claim 3 is characterized in that: the described framework (34) of back support member (18) has been fixed the shaft-like fabric pieces of tightening (98) between two arch sidepiece parts (38).