CN206380980U

CN206380980U - The adjustment structure of seat back of the body linkage chair damping mechanism

Info

Publication number: CN206380980U
Application number: CN201620973658.5U
Authority: CN
Inventors: 何基
Original assignee: UE Furniture Co Ltd
Current assignee: UE Furniture Co Ltd
Priority date: 2016-08-27
Filing date: 2016-08-27
Publication date: 2017-08-08
Anticipated expiration: 2026-08-27

Abstract

The utility model is related to the adjustment structure of seat back of the body linkage chair damping mechanism, including base, rocker, elastomer and adjusting means, one end of the rocker is hinged with base and rocker is rotated around this pin joint, and the adjusting means includes regulation handle, stroke adjustment frame and the drive device for changing stroke adjustment rack position；Drive device and the stroke adjustment frame is arranged in rocker and with rocker synchronous hunting；Elastomer one end abuts with rocker and is connected with stroke adjustment frame.The base slide plate of linkage chair is arranged on the other end of rocker, and during linkage chair use, slide plate is moved along predetermined direction, drives rocker to be rotated around pin joint, the reverse component that elastomer applies to rocker in the process, and playing makes slide plate slides more stably act on.Due to drive device and stroke adjustment frame be arranged in rocker and with rocker synchronous hunting so that still keep being connected with elastomer in swing process stroke adjustment frame, namely regulation handle can still be adjusted elastomer.

Description

The adjustment structure of seat back of the body linkage chair damping mechanism

Technical field

The utility model is related to a kind of auxiliary body of chair, more particularly to seat carries on the back the regulation knot of linkage chair damping mechanism Structure.

Background technology

Office chair office accommodation important in being lived as routine office work, the level of comfort of chair is directly connected to people's The quality of working life.The function that many office chairs in current market are all adjusted with height regulation and tilting angle of backrest, and in order to So that the chair back fitted with human body waist it is more comfortable, while in order to user during the reclining chair back it is safer, it is more and more Office chair employ the chair back and seat support linkage structure, but it is this linkage chair due to the extension spring of setting be it is uncontrollable, And build, weight of people etc. differs, in actual use, the big people of body weight may feel that the restoring force of extension spring is too small, Easily reclining suddenly is excessive during reclining, or even overturns；And the light people of body weight easily feels that the restoring force of extension spring is excessive, Need to apply backrest larger power during reclining, influence is produced on rest effect.

For drawbacks described above, applicant devise it is a kind of for seat carry on the back linkage chair damping mechanism, including base, rocker, Elastomer and adjusting means, one end of the rocker is hinged with base and rocker is rotated around this pin joint, one end of elastomer with Rocker offsets, and when the rocker other end is rotated under driving force effect around the pin joint, promotes elastomer to be deformed and then shape Into restoring force, the abutted position of the adjusting means regulation elasticity body and rocker makes restoring moment size produce change, and then makes Driving moment size produces change.But the adjusting means can only come the abutting position of regulation elasticity body and rocker in the incipient stage Put, after rocker swing, compresses elastomeric, now, adjusting means will depart from elastomer and elastomer can not be adjusted again Section.

Utility model content

In order to solve above-mentioned technical problem, the purpose of this utility model is to provide a kind of simple in construction, chair back restoring force The more preferable seat of regulating effect carries on the back the adjustment structure of linkage chair damping mechanism, and the present back of the body linkage chair of this adjustment structure was used It can be still adjusted in journey.

To achieve these goals, the utility model employs following technical scheme：

The adjustment structure of seat back of the body linkage chair damping mechanism, including base, rocker, elastomer and adjusting means, the rocker One end and base be hinged and rocker is rotated around this pin joint, the adjusting means includes regulation handle, stroke adjustment frame and use In the drive device for changing stroke adjustment rack position；Drive device and the stroke adjustment frame is arranged in rocker and same with rocker Step is swung；Elastomer one end abuts with rocker and is connected with stroke adjustment frame.The base slide plate of linkage chair is arranged on the another of rocker One end, during linkage chair use, slide plate is moved along predetermined direction, drives rocker to be rotated around pin joint, elastomer mistake herein The reverse component applied in journey to rocker, playing makes slide plate slides more stably act on.This damper regulation mechanism is by adjusting Regulating device carrys out the link position of regulation elasticity body and rocker, so as to change the arm of force size of elastomer, and then realizes that backrest is inclining During facing upward, the size for the restoring moment that seat support is subject to changes, so that chair is adapted to different building shape Man's Demands. And the structure is simple in construction, adjustable range is wider.Simultaneously as drive device and stroke adjustment frame be arranged in rocker and with pendulum Frame synchronous hunting so that still keep being connected with elastomer in swing process stroke adjustment frame, namely regulation handle still can be to elasticity Body is adjusted.

Preferably, being provided with first gear in the inner of regulation handle；The drive device includes screw rod, nut and the Two gears, the nut is fixed on stroke adjustment frame, and screw rod coordinates with nut thread, and second gear is fixed on one end of screw rod And engaged with first gear；The second gear uses arc gear wheel.Because drive device and stroke adjustment frame are arranged on rocker It is interior and with rocker synchronous hunting, and second gear uses arc gear wheel so that in swing process first gear still with the second tooth Wheel keeps engagement, namely regulation handle that still elastomer can be adjusted.

Preferably, the rocker includes the upper plate and lower shoe being parallel to each other, and one end of upper plate and lower shoe Fixed by end plate, second gear is fixed on end plate, the middle part of upper plate side and the middle part of lower shoe side pass through side plate It is fixed, the dividing plate vertical with lower shoe with upper plate is provided with side plate, between having between the dividing plate and upper plate, lower shoe Gap；One end of screw rod, which is fixed on, to be located on dividing plate.

Preferably, the stroke adjustment frame is plugged in the gap between dividing plate and upper plate, lower shoe, and by dividing plate It is spacing.

Preferably, the stroke adjustment frame include two blocks of adjusting bracket side plates be arrangeding in parallel and with two pieces of adjusting bracket sides Plate adjusting bracket connecting plate connected vertically, nut is arranged on adjusting bracket connecting plate, and one end of elastomer is arranged on two pieces of adjusting bracket sides Between plate, and it is articulated and connected by a jointed shaft with two pieces of adjusting bracket side plates realizations.

Preferably, the elastomer is stage clip and flexible guide pillar, described flexible guide pillar one end is hinged with stroke adjustment frame, The other end of flexible guide pillar is hinged with base, and the stage clip is set on flexible guide pillar.Flexible lead is set in compression spring Post, defines the deformation direction of spring, avoids stage clip torsion, increase the service life of stage clip.

Preferably, the flexible guide pillar includes mutually nested first sleeve and the second sleeve pipe, first sleeve and stroke Adjusting bracket is hinged, and the second sleeve pipe is hinged with base, and first sleeve close to hinged end position and the second sleeve pipe close to hinged end Position on be respectively fixed with block, the two ends of the stage clip offset with block respectively.

Preferably, the middle part of the rocker is provided with arch breach, the flexible guide pillar is hinged with stroke adjustment frame The two ends of the jointed shaft at place are additionally provided with roller, and the roller is against in arch breach.Roller is set on flexible guide pillar so that When the flexible guide pillar of regulation and the abutted position of swing arm, friction between the two is rolling friction, and frictional force is relatively small, is both caused Regulation process is more laborsaving, turn avoid abrasion.

Preferably, being additionally provided with the first hinged block on the base, one end of rocker, which is hinged, to be arranged on the first hinged block.

Preferably, being additionally provided with the second hinged block on the base；The other end of elastomer is hinged on the second hinged block.

The utility model compared with prior art, with advantages below：

1. the utility model provides a kind of wider array of seat back of the body linkage chair damping mechanism of structure simpler but adjustable range Adjustment structure.Using lever principle as theoretical foundation, i.e. F1 L1=F2L2, power × power arm=resistance × resistance arm.Pass through Regulation changes the size of resistance arm, so as to change the size of the moment of resistance, the different initial arm of forces are set according to the build of different people, So as to adapt to everyone use demand, during linkage chair is used, linkage chair can be operated steadily all the time.

Specifically, in rocker in the rotation process of pin joint, rotation of the elastomer to rocker plays inhibition, that is, carries For resistance, its resistance arm is vertical range of the drag direction to pin joint, and external force rotates to rocker and provides driving force, its application point For the other end of rocker, the vertical range of driving force direction to pin joint is power arm, and the rotation process in rocker each time In, its arm of force size is almost consistent only minute differences all the time, because perception of the different people to the size of power is different, root According to lever principle F1 L1=F2L2, power × power arm=resistance × resistance arm can have by the size for adjusting resistance arm Imitate the size of the driving force required for adjusting.The different of size of power can thus be perceived according to different people, be filled by adjusting The abutted position of regulation elasticity body and rocker is put, so as to change the size of resistance arm, and then backrest is realized during reclining, chair The size of the moment of resistance that seat is subject to changes, so that the size of the initial drive force needed for changing, so as to adapt to the need of different people Ask, in use, will not both feel that backrest was too heavy, also will not because the moment of resistance is too small and it is unexpected toward tipping backwards.

2. due to drive device and stroke adjustment frame be arranged in rocker and with rocker synchronous hunting, and second gear use Arc gear wheel so that first gear still keeps engaging with second gear in swing process, namely regulation handle still can be to elasticity Body is adjusted.

Brief description of the drawings

Fig. 1 is integral planar structural representation of the present utility model.

Fig. 2 is cross-sectional view of the present utility model.

Fig. 3 is entirety perspective view of the present utility model.

Fig. 4 is the structural representation after stage clip of the present utility model is squeezed.

Fig. 5 is that device of the present utility model removes the structural representation after bottom plate.

Fig. 6 is the structural representation of rocker of the present utility model.

Fig. 7 is the cooperation schematic diagram of elastomer of the present utility model and stroke adjustment frame.

Fig. 8 is the cross-sectional view of stage clip of the present utility model and flexible guide pillar.

Fig. 9 is the mesh schematic representation of first gear and second gear before stage clip of the present utility model is squeezed.

Figure 10 is the mesh schematic representation of first gear and second gear after stage clip of the present utility model is squeezed.

Figure 11 is the structural representation of stroke adjustment frame.

Embodiment

Embodiment of the present utility model is described below in detail, the example of the embodiment is shown in the drawings, wherein from beginning Same or similar element or element with same or like function are represented to same or similar label eventually.Below by ginseng The embodiment for examining accompanying drawing description is exemplary, it is intended to for explaining the utility model, and it is not intended that to the utility model Limitation.

In description of the present utility model, it is to be understood that term " " center ", " longitudinal direction ", " transverse direction ", " length ", " width Degree ", " thickness ", " on ", " under ", "front", "rear", "left", "right", " vertical ", " level ", " top ", " bottom " " interior ", " up time The orientation or position relationship of the instruction such as pin ", " counterclockwise " are, based on orientation shown in the drawings or position relationship, to be for only for ease of Describe the utility model and simplify to describe, rather than indicate or imply signified device or element must have specific orientation, With specific azimuth configuration and operation, therefore it is not intended that to limitation of the present utility model.

In addition, term " first ", " second " are only used for describing purpose, and it is not intended that indicating or implying relative importance Or the implicit quantity for indicating indicated technical characteristic.Thus, define " first ", the feature of " second " can express or Implicitly include one or more this feature.In description of the present utility model, unless otherwise indicated, the implication of " multiple " It is two or more, unless otherwise clear and definite restriction.

In the utility model, unless otherwise clearly defined and limited, term " installation ", " connected ", " connection ", " Gu It is fixed " etc. term should be interpreted broadly, for example, it may be being fixedly connected or being detachably connected, or be integrally connected；Can To be mechanical connection or electrical connection；Can be joined directly together, can also be indirectly connected to by intermediary, Ke Yishi The connection of two element internals.For the ordinary skill in the art, above-mentioned term can be understood as the case may be Concrete meaning in the utility model.

In the utility model, unless otherwise clearly defined and limited, fisrt feature second feature it " on " or it " under " can directly be contacted including the first and second features, it is not direct contact but logical that can also include the first and second features The other characterisation contact crossed between them.Moreover, fisrt feature second feature " on ", " top " and " above " include the One feature is directly over second feature and oblique upper, or is merely representative of fisrt feature level height higher than second feature.First is special Levy second feature " under ", " lower section " and " below " include fisrt feature immediately below second feature and obliquely downward, or only Represent that fisrt feature level height is less than second feature.

Embodiment 1：

The damping mechanism and its adjustment structure of seat back of the body linkage chair as shown in Fig. 1~11, including base 1, rocker 3, elasticity Body and adjusting means, one end of the rocker 3 and base 1 are hinged and rocker is rotated around this pin joint, one end of elastomer and pendulum Frame 3 offsets, and when the other end of rocker 3 is rotated under driving force effect around the pin joint, promotes elastomer to be deformed and then shape Into restoring force, the abutted position of the adjusting means regulation elasticity body and rocker 3 makes restoring moment size produce change, and then makes Driving moment size produces change.It is additionally provided with the first hinged block 11 on base 1, one end of rocker 3, which is hinged, to be arranged on first and be hinged On block 11.

The second hinged block 12 is additionally provided with base 1；The other end of elastomer is hinged on the second hinged block 12.

Rocker 3 includes the upper plate 32 and lower shoe 33 being parallel to each other, and one end of upper plate 32 and lower shoe 33 passes through End plate 34 is fixed, and second gear 81 is fixed on end plate 34, and the middle part of the side of upper plate 32 and the middle part of the side of lower shoe 33 are logical Cross side plate 35 to fix, the dividing plate 36 vertical with lower shoe 33 with upper plate 32 is provided with side plate 35, the dividing plate 36 and upper bottom There is gap between plate 32, lower shoe 33, arch breach 31 is offered in the middle part of the opposite side of upper plate 32 and lower shoe 33.

Adjusting means includes regulation handle 2 and stroke adjustment frame 7, one end of stroke adjustment frame 7 and one end phase of elastomer Connect, the control stroke adjustment of regulation handle 2 frame 7 moves the abutted position with regulation elasticity body and rocker 3.Regulation handle 2 is set Put on a side wall of base 1, stroke adjustment frame 7 is arranged in rocker 3, be specially：Stroke adjustment frame 7 is plugged on dividing plate 36 In gap between upper plate 32, lower shoe 33, and it is spacing by dividing plate 36.Also set between regulation handle 2 and stroke adjustment frame 7 There is the drive device for causing stroke adjustment frame 7 to be moved on rocker 3.The drive device includes screw rod 8, nut 71 and second Gear 81.First gear 21 is fixed with the inner of regulation handle 2.The nut 71 is fixed on stroke adjustment frame 7, screw rod 8 Coordinate with the screw thread of nut 71, second gear 81 is fixed on one end of screw rod 8 and engaged with first gear 21.Second gear 81 is used Arc gear wheel.One end of screw rod 8, which is fixed on, to be located on dividing plate 36.Stroke adjustment frame 7 includes two pieces of adjusting brackets be arrangeding in parallel Side plate 72 and with two blocks of adjusting bracket side plates 72 adjusting bracket connecting plate 73 connected vertically, nut 71 is arranged on adjusting bracket connecting plate 73 On, one end of elastomer is arranged between two blocks of adjusting bracket side plates 72, and real by a jointed shaft and two blocks of adjusting bracket side plates 72 Now it is articulated and connected.

Elastomer is also to be hinged with flexible guide pillar 5 on stage clip 4, the stroke adjustment frame 7, and stretch the one end of guide pillar 5 and stroke Adjusting bracket 7 is hinged, and the other end of flexible guide pillar 5 is hinged with base 1, and stage clip 4 is set on flexible guide pillar 5.Flexible guide pillar 5 is wrapped The mutually nested sleeve pipe 52 of first sleeve 53 and second is included, first sleeve 53 is hinged with stroke adjustment frame 7, the second sleeve pipe 52 and bottom Seat 1 is hinged, and first sleeve 53 is respectively fixed with close to the position of hinged end with the second sleeve pipe 52 on the position of hinged end Block 54, the two ends of the stage clip 4 offset with block 54 respectively.Flexible guide pillar 5 is hinged with the place of being hinged of stroke adjustment frame 7 The two ends of axle are additionally provided with roller 6, and the roller 6 is against in arch breach 31.

The base linkage mechanism of a kind of back of the body linkage chair, including damper regulation mechanism described above, in addition to slide plate 10, The slide plate 10 is connected with the other end of rocker 3, deep-slotted chip breaker is provided with slide plate 10, the other end of rocker 3 is in deep-slotted chip breaker Motion.

The base linkage mechanism of a kind of back of the body linkage chair, including damper regulation mechanism described above, in addition to slide plate 10 With link 9, described one end of link 9 and the other end of rocker 3 are hinged, the other end connection slide plate 10 of link 9.

Embodiment 2：

Elastomer is flexible guide pillar 5, and the flexible guide pillar 5 includes the mutually nested sleeve pipe 52 of first sleeve 53 and second, Spring is provided with flexible guide pillar 5, the inner face of the two ends of the spring respectively with the sleeve pipe 52 of first sleeve 53 and second offsets； One end of the flexible guide pillar 5 is hinged with stroke adjustment frame 7, and the other end is hinged with base 1.

It should be pointed out that above example is only representative example of the present utility model.The utility model can also have many Deformation.Every any simple modification, equivalent variations and modification made according to essence of the present utility model to above example, It is considered as belonging to protection domain of the present utility model.

Claims

1. the adjustment structure of a back of the body linkage chair damping mechanism, it is characterised in that：Including base (1), rocker (3), elastomer and tune Regulating device, one end of the rocker (3) and base (1) are hinged and rocker (3) is rotated around this pin joint, and the adjusting means includes Regulation handle (2), stroke adjustment frame (7) and the drive device for changing stroke adjustment frame (7) position；The drive device and Stroke adjustment frame (7) is arranged in rocker (3) and with rocker (3) synchronous hunting；Elastomer one end abutted with rocker (3) and with row Journey adjusting bracket (7) is connected.

2. the adjustment structure of seat back of the body linkage chair damping mechanism according to claim 1, it is characterised in that：In regulation handle (2) the inner is provided with first gear 21；The drive device includes screw rod (8), nut (71) and second gear (81), described Nut (71) is fixed on stroke adjustment frame (7), and screw rod (8) coordinates with nut (71) screw thread, and second gear (81) is fixed on spiral shell Simultaneously engaged with first gear (21) one end of bar (8)；The second gear (81) uses arc gear wheel.

3. the adjustment structure of seat back of the body linkage chair damping mechanism according to claim 1, it is characterised in that：The rocker (3) Including the upper plate (32) and lower shoe (33) being parallel to each other, and one end of upper plate (32) and lower shoe (33) passes through end plate (34) fixed, second gear (81) is fixed on end plate (34), the middle part of upper plate (32) side and lower shoe (33) side Middle part is fixed by side plate (35), and the dividing plate vertical with lower shoe (33) with upper plate (32) is provided with side plate (35) (36), the dividing plate (36) and upper plate (32), lower shoe have gap between (33)；One end of screw rod (8) be fixed on be located in every On plate (36).

4. the adjustment structure of seat back of the body linkage chair damping mechanism according to claim 3, it is characterised in that：The stroke adjustment Frame (7) is plugged in the gap between dividing plate (36) and upper plate (32), lower shoe (33), and spacing by dividing plate (36).

5. the adjustment structure of seat back of the body linkage chair damping mechanism according to claim 1, it is characterised in that：The stroke adjustment Frame (7) include two pieces of adjusting bracket side plates (72) be arrangeding in parallel and with two pieces of adjusting bracket side plate (72) adjusting brackets connected vertically Connecting plate (73), nut (71) is arranged on adjusting bracket connecting plate (73), and one end of elastomer is arranged on two pieces of adjusting bracket side plates (72) Between, and be articulated and connected by a jointed shaft with two pieces of adjusting bracket side plates (72) realizations.

6. the adjustment structure of seat back of the body linkage chair damping mechanism according to claim 1, it is characterised in that：The elastomer bag Stage clip (4) and flexible guide pillar (5) are included, described flexible guide pillar (5) one end is hinged with stroke adjustment frame (7), stretch the another of guide pillar (5) One end is hinged with base (1), and the stage clip (4) is set on flexible guide pillar (5).

7. the adjustment structure of seat back of the body linkage chair damping mechanism according to claim 6, it is characterised in that：The flexible guide pillar (5) mutually nested first sleeve (53) and the second sleeve pipe (52) are included, first sleeve (53) is hinged with stroke adjustment frame (7), Second sleeve pipe (52) is hinged with base (1), and position and second sleeve pipe (52) close hinge of the first sleeve (53) close to hinged end Connect and block (54) is respectively fixed with the position at end, the two ends of the stage clip (4) offset with block (54) respectively.

8. the adjustment structure of seat back of the body linkage chair damping mechanism according to claim 6, it is characterised in that：The rocker (3) Middle part be provided with arch breach (31), the flexible guide pillar (5) and stroke adjustment frame (7) be hinged place jointed shaft two ends Roller (6) is additionally provided with, the roller (6) is against in arch breach (31).

9. the adjustment structure of seat back of the body linkage chair damping mechanism according to claim 1, it is characterised in that：The base (1) On be additionally provided with the first hinged block (11), one end of rocker (3), which is hinged, to be arranged on the first hinged block (11).

10. the adjustment structure of seat back of the body linkage chair damping mechanism according to claim 1, it is characterised in that：The base (1) On be additionally provided with the second hinged block (12)；The other end of elastomer is hinged on the second hinged block (12).