CN201388754Y

CN201388754Y - Folding chair with armrest folding and unfolding structure

Info

Publication number: CN201388754Y
Application number: CN200920149497U
Authority: CN
Inventors: 凌美全; 王资媚
Original assignee: Individual
Current assignee: Individual
Priority date: 2009-04-23
Filing date: 2009-04-23
Publication date: 2010-01-27
Anticipated expiration: 2019-04-23

Abstract

The utility model discloses a folding chair with the armrest folding and unfolding structure. The folding and unfolding structure is characterized in that two plates are arranged at the bottom of armrests; chutes are formed on the plates; each chute comprises a straight section and a bent section; each first pivoted shaft penetrates the plate and is connected with each front foot stand; each second pivoted shaft penetrates one end of each support rod and is connected each front foot stand; and the other ends of the support rods are arranged between the chutes on the plates in a penetrating manner through bolts. The armrests are extended or folded by pulling the support rod, and are in the extending state through falling the bolts into the bent section.

Description

Folding seat with handrail retracting structure

Technical field

The utility model relates to a kind of rumble seat, relates in particular to a kind of handrail and optionally is folded the folding seat that folds or trail

Background technology

General common on the market brandreth formula folding seat, the designer be ask light and wish folding folding after can many neat mutual dependence, so do not install handle usually additional.Other is provided with the folding seat of handle, normally with the convenient type folding seat of the chair frame of light weight collocation plastics cloth institute moulding, it has the multistage burst, folding structural design is also arranged in order to collection in arm rest, but also because it is folding for multisection type, the structure of whole chair frame is complicated, and the foldover design of its arm rest is difficult to be applicable to brandreth formula folding seat as described above.

Figure 8 shows that the brandreth formula folding seat of tool handrail retracting structure of the prior art, its handrail comprises on the other hand by an A of portion and a support bar B.The first articulated section D is arranged between this support bar B one end and the rear leg C, the support bar B pole face of contiguous this first articulated section D is fixed on the contiguous block F of preceding foot rest E, the support bar B other end and hand have the second articulated section G by between the portion A bottom surface, and hand is by having the 3rd articulated section H between the A of portion end and the preceding foot rest E.The handrail of this folding seat folds mode, pulled foot rest E before overlapping being parallel to as rear leg C, the action meeting of the first articulated section D upwards pushes away support bar B, rotation through the second articulated section G and the 3rd articulated section H, make hand lean on the switching downwards of the A of portion front end quilt to contacting support bar B surface, just folding the folding of handrail this moment is parallel to preceding foot rest.

Though aforementioned folding seat possesses the handrail folder function, its handrail is to link to each other with rear leg, and each articulated section is all linked with one another, and handrail can together launch can't separately hand be pulled downwards by portion with folding along with seat body, is folded.The body type can't be taken than the interval roomy occupant of two handrails at all.

The utility model content

It is a kind of when seat body is launched that the purpose of this utility model is to provide, and can select whether to launch the folding seat of handrail according to occupant's demand.

Another purpose of the present utility model provides a kind of folding seat, and when the folding seat body is folded when folding, handrail partly also can fold the position that folds to concordant with body, makes many pieces of folding seat can neat mutual dependence and collect.

Folding seat with handrail retracting structure described in the utility model, the a pair of preceding foot rest and a pair of rear leg that include mutual pivot joint, a handrail is respectively established on the both sides of foot rest symmetry before being somebody's turn to do, between this handrail and this preceding foot rest support bar was set, between foot rest and this handrail and between this support bar and this preceding foot rest one first articulated section and one second articulated section were set respectively before this, between this handrail and this support bar rail structure is set, this rail structure includes a location division that is used for fixing the handrail after the stretching, extension.

In the folding seat with handrail retracting structure described in the utility model, described rail structure comprises the chute of two symmetries, described handrail one end is arranged between this two chute by a bolt, and this bolt is striden and is located on described two chutes, and can drive described handrail one end along this two chutes path movement.

In the folding seat with handrail retracting structure described in the utility model, described location division is shaped to an overhead kick with an end of described chute, and the described bolt after will moving is located.Wherein, described two chutes are opened in respectively on two plates.Described first articulated section comprises a drive-connecting shaft, and this drive-connecting shaft passes this two plate, and is connected in described preceding foot rest.

In the folding seat with handrail retracting structure described in the utility model, described second articulated section comprises a drive-connecting shaft, and this drive-connecting shaft passes described handrail, and be connected in described before foot rest, a sheathed torque spring on this drive-connecting shaft.

In the folding seat with handrail retracting structure described in the utility model, in the bottom surface of the side handrail that leaves described first articulated section one forcing piece is set, when described handrail was folded, described support bar was forced into this forcing piece and locatees.Wherein, described forcing piece has elasticity.Described forcing piece comprises the plate face of two symmetries, and each plate is towards outer bending.

In the folding seat with handrail retracting structure described in the utility model, a bottom surface of described handrail is provided with a cushion pad.

In the folding seat with handrail retracting structure described in the utility model, the retracting structure simplicity of design of described arm rest, and structure is to be located between handrail below and the preceding foot rest, can not increase the volume of seat body.In the use, whether the user can freely select arm-rest frame will be got up use.In operation, indicate operating procedure in the seat appropriate location, the user only needs to pull handrail and handrail can be erected or put down to support bar just easily according to step.Because be provided with the torque spring that is connected in support bar in second articulated section, when the supported bridge time-out of handrail spring can produce a pretightning force,, discharge this pretightning force by spring when support bar leaves the location division, and mobile support bar, put down handrail, so operating process without lifting an eyebrow.When handrail is put down and is folded, the surface tilt degree of handrail is identical with the gradient of preceding foot rest, therefore whole folding seat is folded when folding, not only rear leg and seat cushion can be amounted to the planar range of preceding foot rest, handrail can not exceed this planar range yet, after helping that many folding seat are folding and folding, can lean on proper alignment mutually.

Description of drawings

Fig. 1 is the stereogram of folding seat described in the utility model.

Fig. 2 is the side view of folding seat described in the utility model.

Fig. 3 is the front view of folding seat described in the utility model.

Fig. 3 A is the partial schematic diagram of Fig. 3.

Fig. 4 is the side view of the collapse state of folding seat described in the utility model.

Fig. 4 A is the front view of the collapse state of folding seat described in the utility model.

Side view when Fig. 5 does not stretch for the handrail of folding seat described in the utility model.

Fig. 5 A figure is the partial schematic diagram of Fig. 5.

Fig. 5 B is the stereogram of the handrail of folding seat described in the utility model when not stretching.

Fig. 6 is the expansion action schematic diagram of folding seat described in the utility model.

Fig. 6 A is the partial schematic diagram of Fig. 6.

Fig. 7 is the expansion action schematic diagram of folding seat described in the utility model.

Fig. 7 A is the partial schematic diagram of Fig. 7.

Fig. 8 is the folding seat schematic diagram of tool handrail retracting structure of the prior art.

The specific embodiment

Those skilled in the art below cooperate Figure of description that embodiment of the present utility model is done more detailed description, so that can implement after studying this specification carefully according to this.

As shown in Figure 1, be the schematic perspective view of folding seat described in the utility model, folding seat described in the utility model mainly is to be symmetrical arranged two groups of handrail retracting structures on preceding foot rest 4, below gets wherein one group and does explanation.

Shown in Fig. 2, Fig. 3, Fig. 3 A, described handrail retracting structure includes a handrail 1, a rail structure 2, a support bar 3.This rail structure 2 comprises one " ㄇ " template 21, respectively offer a chute 212 on two planes of symmetry 211 of " ㄇ " template 21, this chute 212 includes time section of colluding 213 that a craspedodrome section and is connected in this craspedodrome Duan Yiduan continuously, the 3rd 214 of " ㄇ " template 21 is fixed in handrail 1 bottom surface, and therefore two planes of symmetry 211 of " ㄇ " template 21 are perpendicular to handrail 1.One first drive-connecting shaft 22 wear by " ㄇ " two planes of symmetry 211 of template 21, foot rest 4 before this first drive-connecting shaft 22 passes and is linked to behind two planes of symmetry 211, handrail 1 can be pulled by upper and lower with respect to first drive-connecting shaft 22.One forcing piece 5, the thin metallic plate of serving as reasons is bent into " ㄇ " template 51; " ㄇ " the two planes of symmetry 511 outwards bending symmetrically of template 51; " ㄇ " the 3rd 512 on template 51 is fixed on " ㄇ " the 3rd 214 of template 21; so two planes of symmetry 511 of forcing piece 5 are also perpendicular to handrail 1; if two planes of symmetry 511 are pressed a little; two planes of symmetry 511 of forcing piece 5 can with " ㄇ " template 21 two planes of symmetry, 211 EDGE CONTACT of an end wherein, this design can be avoided forcing piece 5 elastic fatigues.Also be provided with a cushion pad 6 in handrail 1 bottom surface near forcing piece 5, this cushion pad 6 can be any able to suppress shock materials such as foam rubber cushion, rubber blanket.One end of this support bar 3 with one second drive-connecting shaft 31 wear by, an and sheathed torque spring 32 on this second drive-connecting shaft 31, one free end 321 of this torque spring 32 vertically is linked to support bar 3, second drive-connecting shaft 31 is linked to preceding foot rest 4 after passing support bar 3, and support bar 3 can be pulled by left and right with respect to second drive-connecting shaft 31; Support bar 3 other ends are arranged between 2 liang of chutes 212 of rail structure by a bolt 33, be provided with nut 34 between this bolt 33 and support bar 3 two sides, support bar 3 is remained on " ㄇ " between 21 liang of planes of symmetry 211 of template, be convenient to support bar 3 surface lacquers, 33 liang of end spaies of bolt are located on two chutes 212, and, bolt 33 can't be moved axially respectively in conjunction with a pad 35 and nut 34.

Shown in Fig. 4 and Fig. 4 A, for rear leg 7, cushion 8 and the handrail 1 of described folding seat all fold to overlapping and be parallel to before the side view and the front view of foot rest 4 states.See by the side, be linked to be a plane after whole each position of folding seat folds, when helping collecting, can be with neat the resting on together mutually of many folding seat.

Shown in Fig. 5 and Fig. 5 A, when desire is used folding seat, foot rest 4 and rear leg 7 before launching earlier, the collapse state of handrail retracting structure (being initial state) as shown in the figure, support bar 3 collapses in " ㄇ " between template two planes of symmetry 211, bolt 33 is positioned at chute 212 1 ends of contiguous first drive-connecting shaft 22, and support bar 3 a part of bars are thick, be forced between 5 liang of planes of symmetry of forcing piece, make handrail 1 identical gradient be arranged with preceding foot rest 4.For another example shown in Fig. 2 and Fig. 3 A, handrail 1 upwards pulled make support bar 3 leave forcing piece 5, stride the characteristic of being located at two planes of symmetry 211 and can on chute 212, moving by bolt 33, with second drive-connecting shaft 31 is that support bar 3 one ends are pulled to chute 212 centre positions in the center, handrail 1 front end is inclined upwardly, and this moment, free end 321 (see figure 3)s because of spring produced a pretightning force along with support bar 3 moves.Shown in Fig. 6 and Fig. 6 A, support bar 3 one ends and bolt 33 to be pulled to the state of chute 212 other ends, initial tension of spring continues accumulation, and handrail 1 front and back ends is level slightly.Shown in Fig. 7 and Fig. 7 A, pulling support bar 3 one ends makes bolt 33 be fastened in 212 times sections of colluding 213 of chute, just in time support bar 3 is positioned about angle that is orthogonal with handrail 1, be complete level by bolt 33 fixes the strength that presses back the section of colluding 213 with handrail 1 is drop-down this moment, and spring 32 still remains with pretightning force.Just can extend to horizontal level with folding the handrail that folds originally according to the aforesaid operations mode.Desire to fold again handrail, support bar 3 is pushed away forward, make bolt 33 leave back the section of colluding 213, pulling handrail 1 more also pulls support bar 3 one ends a little towards the direction of first drive-connecting shaft 22, pretightning force by retracting spring 32 promotes support bar 3 rapidly, make bolt 33 slippages be returned to the chute 212 of contiguous first drive-connecting shaft 22, handrail 1 flumps in support bar 3 surfaces, support bar 3 is revert to " ㄇ " between two planes of symmetry 211 of template 2, and be forced in the forcing piece 5, cushion pad 6 (seeing Fig. 3 A) can slow down handrail 1 and flump strike note when support bar 3.So just again handrail is folded 1 to the position (as Fig. 5 B shown in) concordant with preceding foot rest 4.

The above only is in order to explain preferred embodiment of the present utility model; be not that attempt is done any pro forma restriction to the utility model according to this; therefore; all have in that identical creation spirit is following do relevant any modification of the present utility model or change, all must be included in the category of the utility model intention protection.

Claims

1. folding seat with handrail retracting structure includes foot rest and a pair of rear leg before mutual pivot joint a pair of, and a handrail is respectively established on the both sides of this preceding foot rest symmetry, this handrail with should between the preceding foot rest support bar be set, it is characterized in that:

Between foot rest and this handrail and between this support bar and this preceding foot rest one first articulated section and one second articulated section were set respectively before this, between this handrail and this support bar rail structure is set, this rail structure includes a location division that is used for fixing the handrail after the stretching, extension.

2. the folding seat with handrail retracting structure as claimed in claim 1, it is characterized in that, described rail structure comprises the chute of two symmetries, described handrail one end is arranged between this two chute by a bolt, this bolt is striden and is located on described two chutes, and can drive described handrail one end along this two chutes path movement.

3. the folding seat with handrail retracting structure as claimed in claim 2 is characterized in that, described location division is shaped to an overhead kick with an end of described chute, and the described bolt after will moving is located.

4. the folding seat with handrail retracting structure as claimed in claim 3 is characterized in that, described two chutes are opened in respectively on two plates.

5. the folding seat with handrail retracting structure as claimed in claim 4 is characterized in that, described first articulated section comprises a drive-connecting shaft, and this drive-connecting shaft passes this two plate, and is connected in described preceding foot rest.

6. the folding seat with handrail retracting structure as claimed in claim 1 is characterized in that, described second articulated section comprises a drive-connecting shaft, and this drive-connecting shaft passes described handrail, and is connected in described preceding foot rest, a sheathed torque spring on this drive-connecting shaft.

7. the folding seat with handrail retracting structure as claimed in claim 1 is characterized in that, in the bottom surface of the side handrail that leaves described first articulated section one forcing piece is set, and when described handrail was folded, described support bar was forced into this forcing piece and locatees.

8. the folding seat with handrail retracting structure as claimed in claim 7 is characterized in that described forcing piece has elasticity.

9. the folding seat with handrail retracting structure as claimed in claim 8 is characterized in that, described forcing piece comprises the plate face of two symmetries, and each plate is towards outer bending.

10. the folding seat with handrail retracting structure as claimed in claim 1 is characterized in that, a bottom surface of described handrail is provided with a cushion pad.