TW202007315A - Displacement assisting device applied with chair accessories capable of being applied with various chair accessories and adjusting for larger displacement - Google Patents

Abstract

The invention relates to a displacement assisting device applied with chair accessories, which is disposed on a chair to be applied with accessories on the chair, such as armrest, backrest, headrest, etc., and comprises a displacement mechanism, a fixing plate and a carrying plate. In which, the displacement mechanism comprises two rotating members and each of the two rotating members may be synchronously and symmetrically rotating in a large angle having a shaft as the axis to be retracted inwardly to a first position or expanded outwardly to a second position. When the two rotating members are retracted inwardly to the first position, the accessory on the chair will stay at the original position without displacement; when the two rotating members are expanded outwardly from the first position to the second position, the accessory on the chair may be synchronously displaced, so as to achieve the effect capable of adjusting for larger displacement.

Description

Displacement assist device used with accessories of chair

The invention relates to a displacement assisting device, in particular to a displacement assisting device provided on a chair for use with an accessory of the chair such as an armrest, lumbar support, headrest, etc., so that the accessory can not only be adjusted Displacement can achieve a larger amount of displacement.

Chairs, such as office chairs, are often equipped with various accessories such as armrests, headrests, or lumbar support according to the needs of users. Most of the above accessories are designed with a variety of displacement assistance devices that allow users to adjust or Displace the use of these accessories to provide users with a more ergonomic and comfortable experience. At present, in the technical field of chair-related accessories, the applicant in this case has applied for and approved several US invention patents such as US 9,901,175 and US 2018/0103765A1. However, the conventional displacement technology of chair accessories is only designed for a certain type of accessories Therefore, it can only be specifically applied to a certain type of accessories. For example, the displacement technology used in the armrest cannot be easily converted to be applied to the headrest, which relatively increases the manufacturing cost of the manufacturing end of the accessory. In addition, the displacement technology of the conventional chair accessories is limited by the design of the mechanism, and often cannot produce a large displacement amount, which relatively reduces the use efficiency of the displacement adjustment. Therefore, there is indeed a need for improvement in the displacement technology of conventional accessories on chair furniture.

The main purpose of the present invention is to provide a displacement assisting device for use with accessories of a chair, which utilizes two rotating parts to synchronously rotate at a large angle symmetrically with a rotating shaft as the axis to converge inward to a first position Or expand outward to a second position, where when the two rotating parts are folded inward to the first position, the fittings on the chair stay in the original position without displacement, wherein when the two rotating parts are outward When unfolded to the second position, the accessories on the chair can simultaneously generate displacement, thereby enabling the displacement assist device to be applied to various accessories on the chair, and to achieve the use effect of adjusting a larger displacement.

In order to achieve the above object, the present invention is a displacement auxiliary device for accessories of a chair, which includes: a displacement mechanism, a fixed plate, and a bearing plate; wherein the displacement mechanism includes a bottom plate, two symmetrical rotation shafts, left and right Symmetrical two fixed shafts, left and right symmetrical two fasteners, left and right symmetrical and synchronously symmetrically rotating two rotating parts, a retaining wall and left and right symmetrical two first engaged parts, the two rotating shafts and the two fixed shafts are secured Set on the bottom plate, the two rotating parts are symmetrically provided with a pivot hole, a penetrating chute, an arc-shaped first slide rail and an arc-shaped rotating tooth, the pivot hole is sleeved on the rotating shaft to The rotating member can rotate relative to the rotating shaft as an axis. The sliding slot is for each locking member to penetrate and slide in the sliding slot. The first sliding rail is sleeved on the fixed shaft so that the first A sliding rail can slide on the fixed shaft, and the rotating teeth of the two rotating members are geared to each other so that the two rotating members can rotate symmetrically with the rotating shaft as the axis to fold inward to a first position Or expand outwards to a second position, the retaining wall is used to stop the two rotating parts to stay in the first position; wherein the fixed plate cover is provided on the displacement mechanism, and there are two bilaterally symmetrical The groove enables the sliding groove provided on the two rotating parts of the displacement mechanism to be exposed to the outside, and the bottom surface of the fixing plate is provided with two first and second symmetrical first engaging parts and two second engaging parts The engaging part is correspondingly engaged on the two rotating shafts of the displacement mechanism, and the two second engaging parts are correspondingly engaged on the two first engaged parts of the displacement mechanism, so that the two locking firmware and the two The rotating member is movably sandwiched between the bottom plate and the fixed plate; wherein the bearing plate is movably arranged above the fixed plate, and the bearing plate has two second symmetry parts and one symmetrical left and right An accessory fixing portion for fixing the accessories on the chair, the two engaged portions penetrate into the sliding grooves of each rotating member and are fixed with each locking member in each sliding groove; wherein when the two rotating members rotate synchronously and symmetrically When it is folded inwards to the first position, the accessories of the chair are kept stationary; when the two rotating members rotate symmetrically to expand outward to the second position, the accessories of the chair follow the The two rotating parts rotate synchronously and symmetrically to perform displacement.

With reference to the drawings, the structure and technical features of the present invention will be described in detail as follows. Each figure is only used to illustrate the structural relationship and related functions of the present invention. Therefore, the dimensions of each element in each figure are not drawn according to the actual scale. It is not intended to limit the invention.

Referring to FIGS. 1 to 12, the present invention provides a displacement assisting device 1 for use with an accessory 2 of a chair 3, which is provided on a chair 3 for being able to cooperate with an accessory 2 such as an armrest on the chair 3 (see FIG. 3, 4), or lumbar support, headrest, etc. (as shown in Figures 9 and 10), which includes a displacement mechanism 10, a fixed plate 20 and a bearing plate 30.

The displacement mechanism 10 includes a bottom plate 10a, two symmetrical two rotating shafts 11, two symmetrical two fixed shafts 12, two symmetrical two locking members 13, two symmetrical and synchronously symmetrically rotating two rotating members 14, a retaining wall 15 and The second first engaged portion 16 is bilaterally symmetrical; wherein the two rotating shafts 11, the two fixed shafts 12, and the two first engaged portions 16 are respectively fixed on the bottom plate 10a; wherein the two rotating members 14 Each of the upper sides is symmetrically provided with a pivot hole 141, a penetrating sliding slot 142, an arc-shaped first sliding rail 143 and an arc-shaped rotating tooth 144, wherein the pivot hole 141 is sleeved on the rotating shaft 11 So that the rotating member 14 can rotate relative to the rotating shaft 11 as the axis (as shown by the arrow A in FIGS. 6 and 12 ); the sliding slot 142 is for the locking members 13 to penetrate and be in the sliding slot 142 Sliding (as indicated by arrow B in FIGS. 6 and 12); the first slide rail 143 is sleeved on the fixed shaft 12 to slide the first slide rail 143 on the fixed shaft 12, and the two rotations The rotating teeth 144 of the member 14 are geared to each other so that the two rotating members 14 can rotate symmetrically and symmetrically with the rotating shaft 11 as the axis to fold inward to a first position (as shown in FIGS. 5 and 11) or Expand outward to a second position (shown in Figures 6 and 12); the retaining wall 15 is used to stop the two rotating members 14 to stop at the first position (shown in Figures 5 and 11).

The fixing plate 20 is covered on the displacement mechanism 10, and there are two grooves 23 symmetrical on the left and right so that the sliding groove 142 provided on the second rotating member 14 of the displacement mechanism 10 can be exposed to the outside; The bottom surface of the fixing plate 20 is provided with two first symmetrical first engaging portions 21 and two second second engaging portions 22 which are symmetrical to the left and right. The two first engaging portions 21 are correspondingly engaged with the two rotating shafts 11 of the displacement mechanism 10 The two second engaging portions 22 are correspondingly engaged on the two first engaged portions 16 of the displacement mechanism 10, so that the two locking members 13 and the two rotating members 14 can be movably interposed on the Between the bottom plate 10a and the fixed plate 20.

The receiving plate 30 is movably disposed above the fixing plate 20, and has two second symmetrically engaged portions 31 and at least one accessory fixing portion 32 which are bilaterally symmetrical. The accessory fixing portion 32 is used to make the accessory 2 As shown in FIGS. 3 and 4, the two engaged portions 31 are respectively inserted into the sliding grooves 142 of the two rotating members 14 and are connected to the locking members 13 in the sliding grooves 142 as shown in FIGS. 3 and 4. Combined with the fixation, the bearing plate 30 can be synchronously displaced outwardly to the second position (as shown in FIGS. 6 and 12) or reset inwardly to the first position synchronously with the synchronous rotation of the two rotating members 14 (As shown in Figure 5, 11).

In use, the accessory 2 is assembled and fixed on the bearing plate 30 (as shown in FIGS. 3 and 4 ), and the displacement assisting device 1 is installed on the chair 3, at this time the bottom plate 10 a and the fixing plate 20 Relative to the chair 3, it stays still (refer to FIGS. 5, 6 or 11, 12).

In use, when the two rotating members 14 rotate synchronously and symmetrically to close inward to the first position, the receiving plate 30 and the accessory 2 are simultaneously staying on the receiving plate 30 without displacement (as shown in the figure 5, 11).

In use, when the two rotating members 14 rotate synchronously and symmetrically to expand outward to the second position, the receiving plate 30 and the accessory 2 can be synchronized with the two rotating members 14 to rotate synchronously and symmetrically Displacement (direction indicated by arrow C in Figures 6 and 12). In addition, the two rotating members 14 can be freely adjusted between the first position (as shown in Figures 5 and 11) and the second position (as shown in Figures 6 and 12) or stop rotating at any time and stay in the Any position between the first position and the second position, that is, can not only stop at the first position or the second position, so that the accessories 2 on the chair 3 can be in the The position between the first position and the second position can be freely adjusted to meet the needs of the user.

Referring to FIGS. 1 and 2, the displacement mechanism 10 is further provided with two symmetrical two insertion grooves 17 but not limited; wherein the two sliding members 14 of the displacement mechanism 10 are each further provided with an arc-shaped second having an arc-shaped row of teeth 146 The slide rail 145 is not limited; wherein the two insertion grooves 17 are each further provided with a damping member 18 having a gear 181 but not limited, so that the gear 181 of each damping member 18 can be in contact with the arc-shaped teeth of each second slide rail 145 The rows 146 are meshed with each other, so that each second slide rail 145 can slide stably when it is displaced relative to each damping member 18 as shown in FIGS. 5 and 6 or FIGS. 11 and 12.

Referring to FIGS. 3, 4, 9 and 10, the accessory 2 of the chair 3 further includes an armrest 2a, a lumbar support 2b and a headrest 2c without limitation, as shown in the following embodiments:

3 to 8, when the displacement assisting device 1 is applied to the armrest 2a, the displacement assisting device 1 is installed on the armrest frame 3a of the chair 3; taking FIGS. 7 and 8 as an example, the two displacement assisting device 1 They are respectively mounted on the two armrest frames 3a of the chair 3, and the two armrests 2a can move in the conventional forward, backward, left and right directions, and the rotation direction (the directions shown by the X, Y, and Z axes in FIG. 4) The two armrests 2a can further increase the displacement of the inward displacement, that is, further shorten the distance between the two armrests 2a, so that the user's elbow can easily lean against the two armrests 2a to operate the mobile phone as shown in FIG. 8 Show.

Referring to FIGS. 9 to 12, when the displacement assisting device 1 is applied to the lumbar support 2b, the displacement assisting device 1 is installed on the seat back 3b of the chair 3 by a mediator 40 as shown in FIG. 9, so that the The lumbar support 2b can increase the distance of the up and down displacement as shown by the arrow D in FIG. 10, which effectively solves the problem that the conventional position of the lumbar support installed on the seat back does not meet the needs of the user.

9 and 10, when the displacement assisting device 1 is applied to the headrest 2c, the displacement assisting device 1 is installed on the top end of the seat back 3b of the chair 3, so that the headrest 2c can increase the vertical displacement distance As shown by the direction of arrow E in FIG. 10, the problem that the height of the conventional headrest on the chair does not meet the needs of the user is effectively solved.

Compared with the prior art in the art, the displacement assisting device 1 of the present invention has the following advantages:

(1) The structure of the displacement assisting device 1 is simple and modular, and can be integrated or simply transferred to various accessories such as armrests, lumbar support, headrests, etc., which relatively reduces the manufacturing end of the accessories Production costs.

(2) The second rotating member 14 of the present invention uses the rotating shaft 11 as the axis to simultaneously perform a large-angle symmetrical rotation to fold inward to the first position (as shown in FIG. 5) or expand outward to the second Position (as shown in Figure 6), so the accessory 2 can generate a displacement adjustment with a larger displacement between the first position and the second position, which is beneficial to the user to adjust the use position of the accessory 2 The use efficiency of the accessory 2.

The above are only preferred embodiments of the present invention, which are only illustrative rather than restrictive to the present invention; a person of ordinary skill in the art understands that, within the spirit and scope defined by the claims of the present invention, Many changes, modifications, and even equivalent changes will be made, but they will all fall within the protection scope of the present invention.

1‧‧‧Displacement auxiliary device 10‧‧‧Displacement mechanism 10a‧‧‧Bottom plate 11‧‧‧Rotating shaft 12‧‧‧Fixed shaft 13‧‧‧Locking member 14‧‧‧Rotating member 141‧‧‧Pivot hole 142‧‧ ‧Chute 143‧‧‧ First slide rail 144‧‧‧Turn tooth 145‧‧‧Second slide rail 146‧‧‧Arranged tooth row 15‧‧‧Retaining wall 16‧‧‧First engaged part 17 ‧‧‧Embedded groove 18‧‧‧Damper 181‧‧‧Gear 20‧‧‧Fixed plate 21‧‧‧First engagement part 22‧‧‧Second engagement part 23‧‧‧Notch 30‧‧‧ Support plate 31‧‧‧Second engaged part 32‧‧‧Accessories fixing part 2‧‧‧Accessories 2a‧‧‧ Armrest 2b‧‧‧Waist rest 2c‧‧‧Headrest 3‧‧‧Chair set 3a‧ ‧‧Armrest bracket 3b‧‧‧back

FIG. 1 is a three-dimensional exploded view of an embodiment of the invention. FIG. 2 is a perspective schematic view of FIG. 1 from another angle. Figure 3: This is a three-dimensional exploded view of the present invention applied to an armrest. Fig. 4 is a three-dimensional schematic diagram of the usage state of Fig. 3. FIG. 5 is a schematic plan view of the top view of the two rotating parts in FIG. FIG. 6 is a schematic plan view from above when the two rotating parts in FIG. 3 are deployed to the second position. FIG. 7 is a perspective schematic view of the present invention applied to the armrest fitting of the chair 3. Figure 8: A perspective schematic view of the handrail (with a larger displacement) in Figure 7 for the user. Fig. 9 is a perspective exploded view of the present invention applied to the waistrest and headrest. FIG. 10 is a three-dimensional schematic diagram of FIG. 9. Fig. 11 is a schematic front plan view of the waistrest when the two rotating parts in Fig. 10 are folded to the first position. FIG. 12 is a schematic front plan view of the two rotating parts in FIG. 10 when deployed to the second position.

no

1‧‧‧Displacement aid

10‧‧‧Displacement mechanism

10a‧‧‧Bottom plate

11‧‧‧spindle

12‧‧‧Fixed shaft

13‧‧‧Lock firmware

14‧‧‧rotating parts

141‧‧‧Pivot hole

142‧‧‧Chute

144‧‧‧Turn tooth

15‧‧‧ Retaining wall

16‧‧‧ The first engaged part

17‧‧‧Embedded groove

18‧‧‧Damper

181‧‧‧ gear

20‧‧‧Fixed board

21‧‧‧ First Engagement Department

22‧‧‧Second Engagement Department

23‧‧‧groove

30‧‧‧ bearing board

31‧‧‧ The second engaged part

32‧‧‧Fixed parts

Claims (7)

A displacement auxiliary device for use with accessories of a chair, which is provided on a chair for use in cooperation with an accessory on the chair, includes: a displacement mechanism, which includes a bottom plate, two symmetrical rotation shafts, Left and right symmetrical two fixed shafts, left and right symmetrical two fasteners, left and right symmetrical synchronously symmetrically rotating two rotating parts, a retaining wall and left and right symmetrical two first engaged parts, wherein the two rotating shafts and the two fixed shafts And the two first engaged parts are respectively fixed on the bottom plate; wherein the two rotating parts are provided with a pivot hole symmetrically with each other, a penetrating chute, an opposite arc-shaped first slide rail and An arc-shaped rotating tooth, wherein the pivot hole is sleeved on the rotating shaft to enable the rotating member to rotate relative to the rotating shaft as an axis, and the sliding slot is for each locking member to penetrate and be in the sliding slot Sliding, the first slide rail is sleeved on the fixed shaft to make the first slide rail slide on the fixed shaft, the rotating teeth of the two rotating parts are geared to each other so that the two rotating parts can each use the The rotating shaft is the axis and rotates synchronously and symmetrically to expand outward to a second position or inwardly to a first position; the retaining wall is used to stop the two rotating parts to stop at the first position; a fixed The plate is covered on the displacement mechanism, and there are two grooves symmetrical on the left and right so that the sliding groove provided on the two rotating parts of the displacement mechanism can be exposed to the outside; and on the bottom surface of the fixed plate There are two first locking parts and two second locking parts which are symmetrical on the left and right sides, the two first locking parts are correspondingly locked on the two rotating shafts of the displacement mechanism, and the two second locking parts are correspondingly engaged On the two first engaged parts of the displacement mechanism, so that the two locking pieces and the two rotating parts can be movably sandwiched between the bottom plate and the fixed plate; and a bearing plate, which is movable It is provided above the fixing plate, and has two second locked parts symmetrical to the left and right and at least one accessory fixing part. The accessory fixing part is used for assembling and fixing the accessory on the receiving plate, and the two locked parts The joint parts respectively penetrate into the sliding grooves of the two rotating parts and are fixed in combination with the locking members in the sliding grooves, so that the bearing plate can be displaced outward synchronously with the synchronous and symmetrical rotation of the two rotating parts to the The second position or synchronously reset inward to the first position; wherein when the accessory is assembled and fixed on the bearing plate and the displacement assisting device is installed on the chair, the bottom plate and the fixing plate are relative to the chair The fixture remains stationary; wherein when the two rotating parts rotate synchronously and symmetrically to fold inward to the first position, the bearing plate and the accessory stay on the bearing plate at the same time without displacement; wherein when the two When the rotating member rotates synchronously and symmetrically to expand outward to the second position, the bearing plate and the accessory can simultaneously generate outward displacement along with the synchronous and symmetrical rotation of the two rotating members. The displacement assisting device as described in item 1 of the patent application scope, wherein the bottom plate is further provided with two symmetrical inlay grooves; wherein the two sliding members are further provided with an arc-shaped second slide with an arc-shaped row of teeth The rail supply corresponds to the embedded groove. The displacement assisting device as described in item 2 of the patent application scope, wherein the two insertion grooves are each further provided with a damping member having a gear, wherein the gear of each damping member is engaged with the arc-shaped row of teeth of each second slide rail So that each second slide rail can slide stably when it is displaced relative to each damper. The displacement assisting device as described in item 1 of the patent application, wherein the accessories on the chair include armrests, lumbar support, or headrest. The displacement assisting device as described in item 4 of the patent application scope, wherein when the displacement assisting device is used in conjunction with the armrest, the displacement assisting device is installed on the armrest bracket provided on the chair. The displacement assisting device as described in item 4 of the patent application scope, wherein when the displacement assisting device 1 is used to cooperate with the lumbar support, the displacement assisting device is installed on the back of the chair by an intermediary member . The displacement assisting device as described in item 4 of the patent application scope, wherein when the displacement assisting device is used in conjunction with the headrest, the displacement assisting device is installed on the top end of the seat back of the chair.

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