CN208692636U - The elastic force apparatus that the chair back is leaned on to layback - Google Patents

Abstract

A kind of elastic force apparatus that the chair back is leaned on to layback, be the pedestal above the chassis front end that is linked of a chair leg with a locking on cushion front end pivot it is solid together, the centre on chassis is solid together for pivot at the preceding upper end of the chair back connecting piece of chair back installing with one, the relationship that again pivot solid together, wave three formation gearing is enabled at the rear end of pedestal and the intermediate upper end of chair back connecting piece again；Pivot consolidates head before chassis, pan frontward end pin fixed part simultaneously pivot solid one again, and pivot consolidates head after then pivot consolidates one at the preceding lower end of chair back connecting piece, and it enables forward and backward pivot consolidate head and is through at therebetween by a guide rod and is linked, and it sets one and is closely against the spring that forward and backward pivot is consolidated between head, and then it forms an elastic force apparatus and the ability that chair back chaining part (i.e. the chair back) elastic force is faced upward is provided, it also enables the composition component of elastic force apparatus simplify simultaneously, makes assembling more easy, while the cost of product manufacturing can also be reduced.

Description

The elastic force apparatus that the chair back is leaned on to layback

Technical field

The simple elastic force apparatus that the utility model relates to a kind of chair back to lean on to layback, mainly the two of the elastic force apparatus I.e. direct pivot is fixed on chassis and chair back connecting piece respectively at end, does not do the adjustment of any elastic force, so simplify construction package, And make assembling more easy.

Background technique

The generally chair back of our common office chairs all has the function of the adjustment of reclining backward, and the gimmick of the adjustment Have nothing in common with each other, but include at least a pedestal for locking present acting as a cushion face, and set one with before the chassis of chair leg connection and the pedestal Pivot is solid together at end, and then set one and lock the chair back connecting piece of the solid middle in chassis of pivot above its front end for the chair back, The middle pivot of the rear end and chair back connecting piece that also enable pedestal again is solid together, and and then be that motionless fulcrum allows pedestal with chassis When generating the relationship of gearing between (i.e. cushion) and chair back connecting piece (i.e. the chair back), that is, facing upward before and after the chair back, cushion is just It can move forward and backward therewith and inclined variation occurs.

Meanwhile the recessed groove for being installed with a locating plate in the rear end on chassis, and cover one on groove and open up thereon The covering of one long guide hole, and in one manipulation rod unit of the side on chassis installing, and then the both ends for setting an elastic moving part connect respectively Tie at the manipulation rod unit and across covering long guide hole and be linked on locating plate；Chair back connecting piece above-mentioned is enabled again Middle is equipped with upper and lower spaced location hole, allows locating plate that the pendulum in any location hole and making chair back connecting piece can be inserted It is dynamic to be positioned, while when the manipulation rod unit that is rotated of elastic moving part above-mentioned drives and moves forward and backward, locating plate can be enabled Has the function of elastic displacement in groove, even the chair back is when doing the adjustment of elevation angle of front and back, cushion also can be with preceding It is mobile afterwards also to have inclined variation simultaneously.

Furthermore when in order to allow occupant to lean against on the chair back, the elastic force that can do front and back is shaken, and a bullet can be installed in chassis Power device allows the front end of elastic force apparatus to be solid together with the front end pin fixed part pivot on pedestal, chassis, and the rear end of elastic force apparatus is logical It is often to be abutted against for the lower section of front end of chair back connection position, but the elastic force apparatus is again while including adjustable elastic force Mechanism, and then the complexity of increased construction, the component not only combined become more, processing and manufacturing more it is troublesome outside, and also enable group Dress formality it is increasingly complex be not easy, while allowing the increased costs of whole equipment.

Utility model content

Therefore, it will affect outside equipment cost to improve the above-mentioned existing elastic force apparatus for providing the dependence of chair back elastic force, also allow The problems such as assembling seems complicated and is not easy, therefore the utility model provides a kind of device of the elastic force apparatus of easy structure, including one Direct pivot is fixed at the front end on chassis and the preceding lower end of chair back connecting piece forward and backward pivot connector respectively, and is consolidated between head in front and back pivot It installs a spring to abut against therebetween, while consolidating between head in forward and backward pivot and wearing a guide rod, that is, when can provide the swing of chair back connecting piece The effect faced upward of elastic force.

The technical scheme adopted by the utility model to solve the technical problem is as follows: setting the solid bottom together of the two front end pivot Disk and a pedestal, but the preceding upper end pivot for setting a chair back connecting piece is fixed in the middle with chassis, then enables rear end and the chair back of pedestal The middle upper part pivot of connecting piece is solid together, and installs an elastic force apparatus in chassis again, the elastic force apparatus be include pivot before one Gu head pivot is fixed at chassis and pan frontward end pivot, pivot is consolidated head pivot and is fixed at the preceding lower end of chair back connecting piece after one, and forward and backward pivot is solid A guide rod is worn between head, and sets a spring again and is closely against forward and backward pivot and consolidate between head, and faces upward chair back connecting piece with elastic force Effect.

The utility model has the beneficial effects that being installed in by the above-mentioned elastic force apparatus being installed in chassis in addition to providing The elastic force that the chair back of chair back connecting piece can do front and back face upward it is outer, the composition component of the elastic force apparatus also after simplification and make to manufacture at This reduction simultaneously keeps assembling more easy.

Detailed description of the invention

The present invention will be further described with reference to the accompanying drawings and examples.

Fig. 1 is the stereoscopic schematic diagram of the utility model.

Fig. 2 is the perspective exploded view of the utility model.

Fig. 3 is the perspective exploded view of the utility model elastic force apparatus.

Fig. 4 is the side cross sectional views of the utility model.

Fig. 5 is the schematic diagram after the chair back connecting piece of the utility model is swung.

In figure: 1. chassis, 11. grooves, 2. pedestals, 3. elastic force apparatus, pivot consolidates head before 31., 310. guide holes, and pivot is solid after 32. Head, 33. hinged arms, 34. guide rods, 35. springs, 4. chair back connecting pieces, 41. positioning regions, 42. location holes, 5. coverings, 51. long guide holes, 6. locating plate, 61. holes, 7. manipulation rod units, 8. elastic moving parts.

Specific embodiment

It please refers to shown in Fig. 1 and Fig. 2, the elastic force apparatus 3 that the chair back of the utility model is leaned on to layback is to be installed in a chassis 1 Interior, the top on the chassis 1 sets a locking in the pedestal 2 at the cushion back side, and before enabling chassis 1, pedestal 2 and 3 three of elastic force apparatus It holds pivot solid together, and pivot is solid together above the middle on chassis 1 and the front end of a chair back connecting piece 4, then enables the chair back Pivot is solid together at the middle of connecting piece 4 and the rear end of pedestal 2, enables at below the front end of chair back connecting piece 4 and is somebody's turn to do in turn The rear end of elastic force apparatus 3 links, therefore with chassis 1 for motionless fulcrum, due to chair back connecting piece 4 is faced upward before and after the chair back thereafter End is when swinging up and down, pedestal 2 (i.e. cushion) will the variation of run-off the straight with moving forward and backward for the chair back, while chair back connecting piece The lower section of 4 front ends is resisted by 3 elasticity of elastic force apparatus again, and then the elasticity for enabling the chair back can get front and back faces upward movement use.

Inside sets a groove 11 at above-mentioned 1 rear end of chassis, and a covering 5 is fixed on groove 11, and enables and opening in covering 5 If a long guide hole 51 sets the locating plate 6 that one opens up a hole 61 thereon in turn and is installed in the groove 11, allow locating plate 6 can be It the movement of front and back and can be exposed to outside the rear end on chassis 1 in groove 11, while the side on chassis 1 also being enabled to install manipulation rod unit 7, and set an elastic moving part 8 and be installed between manipulation rod unit 7 and locating plate 6, even one end of elastic moving part 8 combines In on manipulation rod unit 7, the other end then pass through the long guide hole 51 of covering 5 and be inserted into locating plate 6 hole 61 in, and then in control lever Under the rotation of component 7 drives, enables elastic moving part 8 that can push and pull locating plate 6 and be moved forward and backward in groove 11, with season elastic moving part 8 itself have the function of that elasticity draws tug to locating plate 6.

The rear end of above-mentioned chair back connecting piece 4 is provided installs with chair back connection, and locates among it, rolls over a positioning region upwards 41, and upper and lower spaced several location holes 42 are equipped on positioning region 41, as shown in Figure 4,5, allow the locating plate 6 of corresponding position It can be inserted into when stretching out after chair back connecting piece 4 is swung in any location hole 42 of corresponding position, chair back connecting piece 4 is enabled to be positioned It can not firmly swing again, even elevation angle needed for chair back adjustment and the situation that is positioned.

Furthermore please cooperate shown in Fig. 3 again, above-mentioned elastic force apparatus 3 includes one solid one with the front end pivot on chassis 1, pedestal 2 The preceding pivot risen consolidates head 31, and pivot is consolidated on head 32 and wears a hinged arm 33 after setting one at the other end, makes through hinged arm 33 and the aforementioned chair back Place's pivot is consolidated together below the front end of connecting piece 4, then the front end that pivot consolidates head 32 after enabling sets a guide rod 34, and before being through at guide rod 34 Pivot is consolidated in guide hole 310 set by 31 rear end of head and can be along 310 telescopic moving of guide hole, and allowing forward and backward pivot to consolidate can between head 31,32 With opposite movement, while also consolidating top between head 31,32 in forward and backward pivot and setting a spring 35, forward and backward pivot is enabled to consolidate between head 31,32 It is opposed, inwardly directed mobile when have the function of elastic force is faced upward before and after outside bullet, that is, the chair back elastic source.

Therefore be installed in chassis 1 by above-mentioned elastic force apparatus 3, the more aobvious letters such as chassis facility below cushion are not only allowed It is clean, while the adjustment mechanism of the elastic force when chair back is leaned on to layback is also saved, allowing entire elastic force apparatus 3 to form component can be more For simplification, and keep manufacture and assembling more easy and allow into instinct significantly to reduce.

Claims (1)

1. the elastic force apparatus that a kind of chair back is leaned on to layback, characterized in that the front end pivot including a chassis and a pedestal is solid together, The intermediate pivot of the preceding upper end and chassis that set a chair back connecting piece again is solid together, then enables in rear end and the chair back connecting piece of pedestal Between top pivot it is solid together, and then chassis, pedestal front end pivot at elastic force dress is set between the preceding lower end of chair back connecting piece It sets, wherein the elastic force apparatus includes that the solid preceding pivot at chassis and pan frontward end pivot of a pivot consolidates head, and a pivot is solid in chair back connecting piece Preceding lower end at rear pivot consolidate head, and consolidate between head in forward and backward pivot and wear a guide rod, also setting a spring, to be closely against forward and backward pivot solid Between head, chair back connecting piece is enabled to can produce the effect that elastic force is faced upward.