CN114052424A

CN114052424A - Chair armrest

Info

Publication number: CN114052424A
Application number: CN202010759543.7A
Authority: CN
Inventors: 陈得峻; 陈涪铭
Original assignee: Atec International Team Co Ltd
Current assignee: Atec International Team Co Ltd
Priority date: 2020-07-31
Filing date: 2020-07-31
Publication date: 2022-02-18

Abstract

The invention provides a chair armrest, which comprises an armrest structure body, a first element, a second element and a bearing platform; the armrest structure body is composed of an armrest cover and an armrest seat which are vertically corresponding and a rectangular space is arranged inside the armrest structure body; the first element is arranged in the rectangular space of the handrail component and is arranged on a first sliding chute of the handrail seat; the second element is arranged in the rectangular space of the handrail member body and is arranged on the first element; the bearing platform is used for bearing the handrail component; wherein the armrest structure can move forward and backward relative to the first element, the second element, the bearing table and a protruding shaft by virtue of the first sliding chute so as to adjust the position; therefore, the chair armrest can still achieve the function of moving and adjusting in the front-back direction, the left-right direction or the rotating direction under the condition of effectively reducing the whole thickness.

Description

Chair armrest

Technical Field

The present invention relates to a chair armrest, and more particularly, to a chair armrest capable of achieving various movement adjustment functions while effectively reducing the overall thickness.

Background

The existing popular chair armrests are designed to have at least one movement adjusting function, such as a forward and backward movement adjusting function, or a left and right movement and/or rotation adjusting function. Taking the armrests adjustment device (Armrest adjustment device) disclosed in US8,474,914 as an example, refer to fig. 7, 8 and 9 of US8,474,914, wherein the first component (number 50) and the second component (number 60) are generally assembled and located on the upper and lower sides of the Armrest seat (number 20) respectively, so that the overall thickness of the Armrest is relatively increased, and the overall design aesthetic feeling and consumer purchase desire of the Armrest are relatively reduced.

Disclosure of Invention

The present invention is directed to a chair armrest, wherein a first element and a second element of the chair armrest are disposed in a rectangular space of an armrest body of the chair armrest and located on an upper side of an armrest seat of the armrest body, so as to effectively solve the problem of the conventional chair armrest with a relatively high overall thickness.

To achieve the above objects, the present invention provides a chair armrest for being mounted on an armrest rod of left and right sides of a chair, comprising:

the armrest structure body is composed of an armrest cover and an armrest seat which are vertically corresponding, and a rectangular space is arranged in the armrest structure body; wherein the armrest cover is covered with an armrest pad; wherein the armrest seat is provided with a first chute and a front-back first slotted hole which are adjacently arranged on the inner bottom surface of the first chute; wherein the armrest cover, the armrest seat and the armrest pad move synchronously;

a first element which is arranged in the rectangular space of the handrail component and is arranged on the first sliding chute of the handrail seat, wherein the first element is provided with a left-right second slotted hole, and the second slotted hole corresponds to the first slotted hole; wherein the armrest component can move back and forth relative to the first element by virtue of the first chute;

the second element is arranged in the rectangular space of the handrail structure body and is arranged on the first element, a lock hole is arranged on the second element, and the lock hole corresponds to the second slotted hole and the first slotted hole; and

a bearing table, which is arranged on the top surface of the handrail rod for bearing the handrail component, a convex shaft is arranged on the bearing table, the convex shaft can sequentially penetrate through the first slotted hole and the second slotted hole from bottom to top and is propped against the lower surface of the lock hole of the second element, and a locking piece passes through the lock hole of the second element from top to bottom to be locked in the convex shaft of the bearing table, so that the handrail component is arranged on the bearing table;

when the armrest structure body moves forward and backward relative to the bearing platform, the first element, the second element, the bearing platform and the protruding shaft are kept stationary, and the armrest structure body can move forward and backward relative to the first element, the second element, the bearing platform and the protruding shaft by virtue of the first sliding groove so as to adjust the position.

The bottom surface of the second element is provided with a clamping groove, and the inner bottom surface of the clamping groove is adjacent to the lock hole; wherein the supporting platform further comprises a rotary groove and a cover plate; wherein the convex shaft of the bearing platform is further detachably arranged in the rotary groove, and the top and the bottom of the convex shaft are respectively provided with a top lug and a bottom rotary table; wherein the cover plate is provided with a through hole for the protruding shaft and the top bump to pass through upwards and be clamped in the clamping groove of the second element, and the locking piece is locked in the protruding shaft and the top bump; when the armrest component moves in a rotation direction relative to the bearing platform, the bearing platform and the cover plate are kept stationary, and the armrest component, the first element, the second element, the top bump and the bottom turntable can synchronously rotate and move relative to the bearing platform, the rotary groove and the cover plate by taking the axis of the protruding shaft as a rotating shaft so as to adjust the position.

The chair armrest is characterized in that a first caulking groove is further formed in the armrest seat, and a damping gear is arranged in the first caulking groove; wherein the bottom surface of the first element is further provided with a front-back first tooth row; wherein the damping gear is correspondingly meshed with the first tooth row; when the armrest component is moved forward and backward to adjust the position, the first element, the second element, the bearing platform and the protruding shaft are kept stationary, and the damping gear can rotate along the first tooth row, so that the armrest component can perform forward and backward adjustment movement with damping effect.

A chair armrest for mounting on an armrest post on either side of a chair, comprising:

a first element, which is arranged in the rectangular space of the armrest structure body and is arranged on the first sliding chute of the armrest seat, wherein the first element is provided with a left-right second slotted hole and a second sliding chute, and the second slotted hole corresponds to the first slotted hole; wherein the armrest component can move back and forth relative to the first element by virtue of the first chute;

a second element which is arranged in the rectangular space of the handrail structure body and is arranged on the second chute of the first element, a lock hole is arranged on the second element, and the lock hole corresponds to the second slot hole and the first slot hole; wherein the first element can move left and right relative to the second element by virtue of the second chute; and

when the armrest construction body moves forwards and backwards relative to the bearing platform, the first element, the second element, the bearing platform and the protruding shaft are kept motionless, and the armrest construction body can move forwards and backwards relative to the first element, the second element, the bearing platform and the protruding shaft by virtue of the first sliding chute so as to adjust the position;

when the armrest structure is moved to the left and right to adjust the position, the second element, the bearing platform and the protruding shaft remain stationary, and the armrest structure and the first element can move left and right relative to the protruding shaft by the first slot hole and the second slot hole respectively to adjust the position.

The chair armrest is characterized in that the first element is further provided with a second caulking groove, and a damping gear is arranged in the second caulking groove; wherein the bottom surface of the second element is further provided with a left-right second tooth row; wherein the damping gear is correspondingly meshed with the second gear row; when the armrest structure is moved to the left and right direction to adjust the position, the second element, the armrest bearing table and the protruding shaft are kept stationary, and the damping gear can rotate along the second gear row, so that the armrest structure can perform the left and right direction adjustment movement with the damping function.

the armrest structure body is composed of an armrest cover and an armrest seat which are vertically corresponding, and a rectangular space is arranged in the armrest structure body; wherein the armrest cover is covered with an armrest pad; wherein the armrest seat is provided with a first chute and a front-back first slotted hole which are adjacently arranged on the inner bottom surface of the first chute; wherein the armrest cover, the armrest seat and the armrest pad move synchronously; the armrest structure further comprises an armrest opening which is formed by vertically and correspondingly combining a notch of the armrest pad, a notch of the armrest cover and a notch of the armrest seat;

the second element is arranged in the rectangular space of the handrail structure body and is arranged on the first element, a lock hole is arranged on the second element, and the lock hole corresponds to the second slotted hole and the first slotted hole;

a bearing table, which is arranged on the top surface of the handrail rod for bearing the handrail component, a convex shaft is arranged on the bearing table, the convex shaft can sequentially penetrate through the first slotted hole and the second slotted hole from bottom to top and is propped against the lower surface of the lock hole of the second element, and a locking piece passes through the lock hole of the second element from top to bottom to be locked in the convex shaft of the bearing table, so that the handrail component is arranged on the bearing table; and

a button which is inserted into the opening of the armrest from outside to inside and is positioned on the gap of the armrest seat, the outer end of the button is provided with a flat plate part, the inner end of the button is provided with an elastic part for elastically abutting against a convex wall at the side edge of the gap of the armrest seat, a front-back connecting sliding part is arranged between the flat plate part and the elastic part, the inner side wall of the connecting sliding part is provided with an inward-protruding convex handle, and the convex handle is provided with a front-back button tooth row which can be engaged with the third tooth row of the first element;

when the button is pressed inwards, the flat plate part of the button is pressed and moves elastically towards the opening of the armrest, the button tooth row on the convex handle of the button moves inwards to release the meshing state with the third tooth row of the first element, at the moment, the first element, the second element, the bearing platform and the convex shaft are kept immovable, and the armrest structure body can move forwards and backwards relative to the first element, the second element, the bearing platform and the convex shaft by virtue of the first sliding chute so as to adjust the position.

The chair armrest, wherein the first element is further provided with a third slot hole in the front-back direction; wherein the bottom surface of the second element is provided with a clamping groove, and the inner bottom surface of the clamping groove is adjacent to the lock hole; wherein the supporting platform further comprises a rotary groove and a cover plate; wherein the convex shaft of the bearing platform is further detachably arranged in the rotary groove, and the top and the bottom of the convex shaft are respectively provided with a top lug and a bottom rotary table; wherein the cover plate is provided with a through hole for the protruding shaft and the top bump to pass through upwards and be clamped in the clamping groove of the second element, and the locking piece is locked in the protruding shaft and the top bump; wherein the bottom surface of the second element is further provided with a fourth tooth row; wherein the convex handle of the button is further provided with a third chute and a slide block which is slidably arranged in the third chute, the third chute is provided with an oblique slide hole which penetrates through the third chute, the slide block is provided with a slide wing for sliding in the oblique slide hole in an oblique upper direction or an oblique lower direction, the top surface of the slide block is provided with a slide block tooth row which can upwards penetrate through the second long slot hole and is correspondingly engaged with the fourth tooth row of the second element, and a spring is arranged between the bottom of the slide block and the third chute for providing the bounce of the slide block; when the button is pressed inwards, the flat plate part of the button is pressed and moves elastically towards the opening of the armrest, the sliding block tooth row on the convex handle of the button moves obliquely downwards along the oblique sliding hole by means of the sliding wings to release the meshing state with the fourth tooth row of the second element, the bearing platform and the cover plate are kept still, and the armrest component body, the first element, the second element, the top convex block and the bottom turntable can synchronously rotate and move relative to the bearing platform, the rotating groove and the cover plate by taking the axis of the convex shaft as a rotating shaft to adjust the position.

a second element which is arranged in the rectangular space of the handrail structure body and is arranged on the second chute of the first element, a lock hole is arranged on the second element, and the lock hole corresponds to the second slot hole and the first slot hole; wherein the first element can move left and right relative to the second element by virtue of the second chute;

when the button is pressed inwards, the flat plate part of the button is pressed to move elastically towards the armrest opening, the button tooth row on the convex handle of the button can move inwards to be disengaged with the third tooth row of the first element, and at the moment, the armrest structure can be moved forwards and backwards to adjust the position or moved leftwards and rightwards to adjust the position;

Therefore, the chair armrest can still achieve the function of moving and adjusting in the front-back direction, the left-right direction or the rotating direction under the condition of effectively reducing the whole thickness.

Drawings

Fig. 1 is a perspective assembly diagram of an embodiment of the present invention.

Fig. 2 is a perspective view of the present invention mounted on a chair.

Fig. 3 is a side plan view of fig. 2.

Fig. 4 is a partially exploded perspective view of fig. 1.

Fig. 5 is an enlarged schematic view of the mounting table, the boss shaft, and the cover plate of fig. 4.

Fig. 6 is a schematic view of the combination of the mounting table, the protruding shaft, and the cover plate of fig. 5.

Fig. 7 is an enlarged schematic view of the armrest seat, first member, and second member of fig. 4.

Fig. 8 is a partially exploded perspective view of the armrest cover and armrest pad of fig. 1 shown separated.

Fig. 9 is a partial plan side cross-sectional schematic view of fig. 1.

Fig. 10 is a top plan view of fig. 1 (without the table).

Fig. 11 is a schematic top plan view of the armrest assembly of fig. 10, as adjusted (i.e., moved in the forward and rearward directions).

Fig. 12 is an enlarged schematic view of the button of fig. 4.

Fig. 13 is a schematic combination diagram of the buttons of fig. 12.

FIG. 14 is a partial side cross-sectional schematic view of the slider tooth row on the push button of the present invention engaged in the fourth tooth row of the second member.

FIG. 15 is a partial cross-sectional side view of a row of slider teeth on the push button of the present invention separated from a fourth row of teeth on the second member.

FIG. 16 is a side cross-sectional schematic view of the slider tooth row on the button of the present invention separated from the fourth tooth row of the second member.

Fig. 17 is a schematic top plan view of fig. 1.

Fig. 18 is a schematic top plan view of the armrest assembly of fig. 17 in an adjusted (rotated) position.

Fig. 19 is a perspective exploded view of the armrest seat (the first slot of the armrest seat is a wide rectangle), the first element and the second element according to the present invention.

Fig. 20 is a schematic top plan view of fig. 1 in which the first slot hole of the armrest seat is shaped as a wide rectangle.

Fig. 21 is a schematic top plan view of the armrest assembly of fig. 20 in an adjusted position (left-right direction).

Fig. 22 is a perspective exploded view of the armrest seat, first member and second member (without the button and damper gear) of the present invention.

Description of reference numerals: 1-chair armrests; 10-armrest construction; 10 a-a rectangular space; 11-armrest covers; a 111-notch; 12-armrest seats; 121-a first runner; 122-a first slot; 123-a first caulking groove; 124-notch; 125-convex wall; 13-armrest pad; 131-a notch; 14-handrail opening; 20-a first element; 21-a second slot; 22-a first row of teeth; 23-a second chute; 24-a second caulking groove; 25-third row of teeth; 26-a third slot; 30-a second element; 31-a keyhole; 32-a clamping groove; 33-second row of teeth; 34-a fourth row of teeth; 40-a receiving table; 41-protruding shaft; 42-a locking piece; 43-a rotary groove; 44-a positioning element; 45-cover plate; 451-perforation; 46-top bump; 47-bottom turntable; 471-locating slot; 50-a damping gear; 60-a button; 61-a flat plate portion; 62-an elastic member; 63-connecting the sliding part; 64-convex handle; 65-button tooth row; 66-a third chute; 661-oblique sliding hole; 67-a slide block; 671-sliding wing; 672-slide block tooth row; 68-a spring; 2-grab rail; 3-a chair.

Detailed Description

The present invention is described in detail with reference to the drawings, wherein the drawings are only for illustrating the structural relationship and the related functions of the present invention, and the sizes of the elements in the drawings are not to be drawn to scale and are not to be construed as limiting the present invention.

Generally, the chair armrest is locked on both left and right sides (in terms of the direction of the seated user) of the chair, and thus, the directions "front-back" and "left-right" mentioned in the following disclosure are in terms of the direction of the seated user.

Referring to fig. 1 to 4,9, 10, 17 and 20, the present invention provides a chair armrest 1 for being mounted on an armrest rod 2 of left and right sides of a chair 3 as shown in fig. 2, the chair armrest 1 including, but not limited to, an armrest body 10, a first member 20, a second member 30, a supporting table 40 and a button 60; the chair armrest 1 can be used without the button 60 as shown in fig. 22, but the button 60 can help the user lock the armrest body 10 at the new position after adjustment, so that the armrest body 10 is not easily changed as shown in fig. 10, 17 and 20.

The armrest structure 10 is composed of an armrest cover 11 and an armrest seat 12, which are vertically corresponding to each other, and a rectangular space 10a is formed in the armrest structure 10 as shown in fig. 8 and 9; wherein the armrest cover 11 is covered with an armrest pad 13; wherein the armrest seat 12 is provided with a first sliding slot 121 and a front-back first slot 122 adjacently disposed on the inner bottom surface of the first sliding slot 121 as shown in fig. 4, 7, 19 and 22; wherein the armrest lid 11, the armrest seat 12 and the armrest pad 13 move synchronously as shown in fig. 11, 18 and 21; the armrest structure 10 further includes an armrest opening 14, but not limited thereto, the armrest opening 14 is formed by vertically and correspondingly combining a notch 131 of the armrest pad 13, a notch 111 of the armrest cover 11, and a notch 124 of the armrest seat 12 as shown in fig. 4; the armrest structure 10 can be used without the armrest opening 14, but if the chair armrest 1 includes the button 60, the button 60 can be installed only by providing the armrest opening 14 as shown in fig. 4.

The first element 20 is disposed in the rectangular space 10a of the armrest component 10 and mounted on the first sliding slot 121 of the armrest seat 12 as shown in fig. 4 and 7 to 9, the first element 20 is provided with a left-right second slot 21 and a second sliding slot 23, but not limited thereto, and the second slot 21 corresponds to the first slot 122; the armrest structure 10 can move back and forth relative to the first element 20 via the first sliding slot 121 as shown by the arrow a in fig. 1 and the arrow E in fig. 11.

The shape of the first slot 122 is further a wide rectangle without limitation as shown in fig. 19, so that the area of the first slot 122 in the left-right direction is increased.

The second element 30 is disposed in the rectangular space 10a of the armrest structure 10 and mounted on the second sliding slot 23 of the first element 20 as shown in fig. 4 and 7 to 9, a locking hole 31 is disposed on the second element 30, and the locking hole 31 corresponds to the second slot 21 and the first slot 122 as shown in fig. 4 and 7; the first element 20 can move left and right relative to the second element 30 via the second sliding slot 23 as shown by the arrow C direction in fig. 1 and the arrow K direction in fig. 21.

The bearing platform 40 is disposed on the top surface of the grab bar 2 for bearing the grab bar 10 as shown in fig. 4, 8 and 9, a protruding shaft 41 is disposed on the bearing platform 40, the protruding shaft 41 can sequentially pass through the first slot 122 and the second slot 21 from bottom to top to abut against the lower surface of the locking hole 31 of the second element 30, and pass through the locking hole 31 of the second element 30 from top to bottom by a locking member 42 to be locked in the protruding shaft 41 of the bearing platform 40 as shown in fig. 4, 8 and 9, so that the grab bar 10 is disposed on the bearing platform 40.

The button 60 is inserted into the armrest opening 14 from the outside to the inside and located on the notch 124 of the armrest seat 12 as shown in fig. 4, 7, 10 and 20 for the user to press, a flat plate portion 61 is provided at the outer end of the button 60, an elastic member 62 is provided at the inner end for elastically abutting against a protruding wall 125 at the side of the notch 124 of the armrest seat 12, a forward and backward connecting sliding portion 63 is provided between the flat plate portion 61 and the elastic member 62, an inward protruding handle 64 is provided on the inner wall of the connecting sliding portion 63, and a forward and backward button tooth row 65 is provided on the protruding handle 64 and can be engaged with the third tooth row 25 of the first member 20 as shown in fig. 10.

When the button 60 is pressed inward as shown by the arrow D in fig. 11 and the arrow J in fig. 21, the flat plate portion 61 of the button 60 is pressed to move elastically into the armrest opening 14, and the button teeth 65 on the protruding shank 64 of the button 60 moves inward to disengage from the third teeth 25 of the first element 20 as shown in fig. 11 and 21, at which time the armrest body 10 can be moved forward and backward (as shown by the arrow a in fig. 1 and the arrow E in fig. 11) or left and right (as shown by the arrow C in fig. 1 and the arrow K in fig. 21).

When the armrest structure 10 moves forward and backward relative to the supporting platform 40, the first element 20, the second element 30, the supporting platform 40 and the protruding shaft 41 remain stationary, and the armrest structure 10 can move forward and backward relative to the first element 20, the second element 30, the supporting platform 40 and the protruding shaft 41 via the first sliding slot 121 to adjust the position as shown in fig. 10 (before adjustment) and 11 (after adjustment).

When the armrest body 10 is moved to the left and right for adjusting the position, the second element 30, the supporting platform 40 and the protruding shaft 41 remain stationary, and the armrest body 10 and the first element 20 can be moved to the left and right relative to the protruding shaft 41 by the first slot 122 and the second slot 21 respectively to adjust the position as shown in fig. 20 (before adjustment) and 21 (after adjustment).

Referring to fig. 4, 7 and 19, the first member 20 is further provided with a third slot 26 in a front-to-back direction, but not limited thereto; wherein the bottom surface of the second element 30 is provided with a fastening slot 32, and the inner bottom surface of the fastening slot 32 is adjacent to the locking hole 31 as shown in fig. 7; wherein the supporting platform 40 further comprises a rotating slot 43, at least one positioning member 44 and a cover plate 45, but not limited to the embodiments shown in fig. 4 to 6; wherein the protruding shaft 41 of the supporting platform 40 is further detachably disposed in the rotating slot 43 without limitation, the top and bottom of the protruding shaft 41 are further provided with a top protrusion 46 and a bottom rotating disc 47 without limitation as shown in fig. 5, the side wall of the rotating disc 47 is provided with at least one positioning slot 471 corresponding to each positioning element 44 for each positioning element 44 to be inserted and fixed as shown in fig. 5; wherein the cover plate 45 is provided with a through hole 451 for the protruding shaft 41 and the top protrusion 46 to pass through upward and to be clamped in the clamping groove 32 of the second element 30, and the locking member 42 is locked in the protruding shaft 41 and the top protrusion 46 as shown in fig. 4, 8 and 9; wherein the bottom surface of the second member 30 is further provided with, but not limited to, a fourth row of teeth 34.

The protruding handle 64 of the button 60 further has a third sliding slot 66 and a sliding block 67 slidably disposed in the third sliding slot 66, but not limited to fig. 7 and 12 to 16, the third sliding slot 66 is provided with an inclined sliding hole 661 penetrating through the third sliding slot 66 as shown in fig. 12 to 16, the sliding block 67 is provided with a sliding wing 671 for sliding in the inclined sliding hole 661 obliquely upward or obliquely downward as shown by an arrow G in fig. 15, the top surface of the sliding block 67 is provided with a sliding block teeth row 672 capable of passing through the second long slot hole 26 upward to be engaged with the fourth teeth row 34 of the second element 30 correspondingly as shown in fig. 14, and a spring 68 is disposed between the bottom of the sliding block 67 and the third sliding slot 66 for providing a counter-elastic force to the sliding block 67 as shown in fig. 12.

When the push button 60 is pressed inward (as shown by the arrow F in fig. 15 and the arrow H in fig. 18), the flat plate portion 61 of the push button 60 is pressed to move elastically into the armrest opening 14, the slider teeth 672 on the protruding shank 64 of the button 60 are moved obliquely downward (as shown by the arrow G in fig. 15) along the oblique sliding hole 661 by the sliding wings 671 to disengage with the fourth teeth 34 of the second member 30, as shown in fig. 15 and 16, while the supporting platform 40 and the cover plate 45 are kept stationary, the armrest structure 10, the first element 20, the second element 30, the top protrusion 46 and the bottom rotary disk 47 can rotate around the axis of the protruding shaft 41 as a rotation axis to move in a synchronous rotation direction (as shown by arrow B in fig. 1 and arrow I in fig. 18) relative to the supporting platform 40, the rotary slot 43 and the cover plate 45, so as to adjust the position as shown in fig. 18.

When the positioning members 44 are locked into the positioning grooves 471 one after another in the rotating direction adjusting movement, the rotating direction adjusting movement of the armrest structure 10 is stopped within a limited angle range as shown in fig. 18, so that the user can position the armrest structure 10 quickly.

Referring to fig. 7, 10 and 11, the armrest seat 12 is further provided with a first slot 123 without limitation, and the first slot 123 is provided with a damping gear 50; wherein the bottom surface of the first element 20 is further provided with a first front-to-back row of teeth 22 as shown in fig. 7, 10 and 11 but not limited thereto; wherein the damping gear 50 meshes with the first row of teeth 22 as shown in fig. 10; when the armrest body 10 is moved forward and backward to adjust the position, the first element 20, the second element 30, the supporting platform 40 and the protruding shaft 41 remain stationary, and the damping gear 50 can rotate along the first tooth row 22, so that the armrest body 10 performs the forward and backward adjusting movement with damping effect as shown by the arrow E in fig. 11.

Referring to fig. 7, 20 and 21, the first element 20 is further provided with, but not limited to, a second caulking groove 24 in which a damping gear 50 is provided; wherein the bottom surface of the second element 30 is further provided with a left-right second row of teeth 33 as shown in fig. 7, 20 and 21 but not limited thereto; wherein the damping gear 50 is meshed with the second row of teeth 33 correspondingly as shown in fig. 20; when the armrest body 10 is moved to the left-right direction for adjustment, the second element 30, the armrest bearing table 40 and the protruding shaft 41 are kept stationary, and at this time, the damping gear 50 can rotate along the second gear row 33, so that the armrest body 10 performs the left-right direction adjustment movement with damping action as shown by an arrow K in fig. 21.

The chair armrest 1 can be used without the damping gear 50 as shown in fig. 22, but the damping gear 50 can provide smoother chair armrest operation experience for users, which is beneficial to improving the market competitiveness of products.

The foregoing description is intended to be illustrative rather than limiting, and it will be appreciated by those skilled in the art that many modifications, variations or equivalents may be made without departing from the spirit and scope of the invention as defined in the appended claims.

Claims

1. A chair armrest for mounting on an armrest post on either side of a chair, comprising:

2. The chair armrest of claim 1, wherein: the bottom surface of the second element is provided with a clamping groove, and the inner bottom surface of the clamping groove is adjacent to the lock hole; wherein the supporting platform further comprises a rotary groove and a cover plate; wherein the convex shaft of the bearing platform is further detachably arranged in the rotary groove, and the top and the bottom of the convex shaft are respectively provided with a top lug and a bottom rotary table; wherein the cover plate is provided with a through hole for the protruding shaft and the top bump to pass through upwards and be clamped in the clamping groove of the second element, and the locking piece is locked in the protruding shaft and the top bump; when the armrest component moves in a rotation direction relative to the bearing platform, the bearing platform and the cover plate are kept stationary, and the armrest component, the first element, the second element, the top bump and the bottom turntable can synchronously rotate and move relative to the bearing platform, the rotary groove and the cover plate by taking the axis of the protruding shaft as a rotating shaft so as to adjust the position.

3. The chair armrest of claim 1, wherein: the armrest seat is further provided with a first caulking groove, and a damping gear is arranged in the first caulking groove; wherein the bottom surface of the first element is further provided with a front-back first tooth row; wherein the damping gear is correspondingly meshed with the first tooth row; when the armrest component is moved forward and backward to adjust the position, the first element, the second element, the bearing platform and the protruding shaft are kept stationary, and the damping gear can rotate along the first tooth row, so that the armrest component can perform forward and backward adjustment movement with damping effect.

4. A chair armrest for mounting on an armrest post on either side of a chair, comprising:

5. The chair armrest of claim 4, wherein: the bottom surface of the second element is provided with a clamping groove, and the inner bottom surface of the clamping groove is adjacent to the lock hole; wherein the supporting platform further comprises a rotary groove and a cover plate; wherein the convex shaft of the bearing platform is further detachably arranged in the rotary groove, and the top and the bottom of the convex shaft are respectively provided with a top lug and a bottom rotary table; wherein the cover plate is provided with a through hole for the protruding shaft and the top bump to pass through upwards and be clamped in the clamping groove of the second element, and the locking piece is locked in the protruding shaft and the top bump; when the armrest component moves in a rotation direction relative to the bearing platform, the bearing platform and the cover plate are kept stationary, and the armrest component, the first element, the second element, the top bump and the bottom turntable can synchronously rotate and move relative to the bearing platform, the rotary groove and the cover plate by taking the axis of the protruding shaft as a rotating shaft so as to adjust the position.

6. The chair armrest of claim 4, wherein: the armrest seat is further provided with a first caulking groove, and a damping gear is arranged in the first caulking groove; wherein the bottom surface of the first element is further provided with a front-back first tooth row; wherein the damping gear is correspondingly meshed with the first tooth row; when the armrest component is moved forward and backward to adjust the position, the first element, the second element, the bearing platform and the protruding shaft are kept stationary, and the damping gear can rotate along the first tooth row, so that the armrest component can perform forward and backward adjustment movement with damping effect.

7. The chair armrest of claim 4, wherein: the first element is further provided with a second caulking groove, and a damping gear is arranged in the second caulking groove; wherein the bottom surface of the second element is further provided with a left-right second tooth row; wherein the damping gear is correspondingly meshed with the second gear row; when the armrest structure is moved to the left and right direction to adjust the position, the second element, the armrest bearing table and the protruding shaft are kept stationary, and the damping gear can rotate along the second gear row, so that the armrest structure can perform the left and right direction adjustment movement with the damping function.

8. A chair armrest for mounting on an armrest post on either side of a chair, comprising:

9. The chair armrest of claim 8, wherein: the first element is further provided with a third slot hole in the front-back direction; wherein the bottom surface of the second element is provided with a clamping groove, and the inner bottom surface of the clamping groove is adjacent to the lock hole; wherein the supporting platform further comprises a rotary groove and a cover plate; wherein the convex shaft of the bearing platform is further detachably arranged in the rotary groove, and the top and the bottom of the convex shaft are respectively provided with a top lug and a bottom rotary table; wherein the cover plate is provided with a through hole for the protruding shaft and the top bump to pass through upwards and be clamped in the clamping groove of the second element, and the locking piece is locked in the protruding shaft and the top bump; wherein the bottom surface of the second element is further provided with a fourth tooth row; wherein the convex handle of the button is further provided with a third chute and a slide block which is slidably arranged in the third chute, the third chute is provided with an oblique slide hole which penetrates through the third chute, the slide block is provided with a slide wing for sliding in the oblique slide hole in an oblique upper direction or an oblique lower direction, the top surface of the slide block is provided with a slide block tooth row which can upwards penetrate through the second long slot hole and is correspondingly engaged with the fourth tooth row of the second element, and a spring is arranged between the bottom of the slide block and the third chute for providing the bounce of the slide block; when the button is pressed inwards, the flat plate part of the button is pressed and moves elastically towards the opening of the armrest, the sliding block tooth row on the convex handle of the button moves obliquely downwards along the oblique sliding hole by means of the sliding wings to release the meshing state with the fourth tooth row of the second element, the bearing platform and the cover plate are kept still, and the armrest component body, the first element, the second element, the top convex block and the bottom turntable can synchronously rotate and move relative to the bearing platform, the rotating groove and the cover plate by taking the axis of the convex shaft as a rotating shaft to adjust the position.

10. The chair armrest of claim 8, wherein: the armrest seat is further provided with a first caulking groove, and a damping gear is arranged in the first caulking groove; wherein the bottom surface of the first element is further provided with a front-back first tooth row; wherein the damping gear is correspondingly meshed with the first tooth row; when the armrest component is moved forward and backward to adjust the position, the first element, the second element, the bearing platform and the protruding shaft are kept stationary, and the damping gear can rotate along the first tooth row, so that the armrest component can perform forward and backward adjustment movement with damping effect.

11. A chair armrest for mounting on an armrest post on either side of a chair, comprising:

12. The chair armrest of claim 11, wherein: the first element is further provided with a third slot hole in the front-back direction; wherein the bottom surface of the second element is provided with a clamping groove, and the inner bottom surface of the clamping groove is adjacent to the lock hole; wherein the supporting platform further comprises a rotary groove and a cover plate; wherein the convex shaft of the bearing platform is further detachably arranged in the rotary groove, and the top and the bottom of the convex shaft are respectively provided with a top lug and a bottom rotary table; wherein the cover plate is provided with a through hole for the protruding shaft and the top bump to pass through upwards and be clamped in the clamping groove of the second element, and the locking piece is locked in the protruding shaft and the top bump; wherein the bottom surface of the second element is further provided with a fourth tooth row; wherein the convex handle of the button is further provided with a third chute and a slide block which is slidably arranged in the third chute, the third chute is provided with an oblique slide hole which penetrates through the third chute, the slide block is provided with a slide wing for sliding in the oblique slide hole in an oblique upper direction or an oblique lower direction, the top surface of the slide block is provided with a slide block tooth row which can upwards penetrate through the second long slot hole and is correspondingly engaged with the fourth tooth row of the second element, and a spring is arranged between the bottom of the slide block and the third chute for providing the bounce of the slide block; when the button is pressed inwards, the flat plate part of the button is pressed and moves elastically towards the opening of the armrest, the sliding block tooth row on the convex handle of the button moves obliquely downwards along the oblique sliding hole by means of the sliding wings to release the meshing state with the fourth tooth row of the second element, the bearing platform and the cover plate are kept still, and the armrest component body, the first element, the second element, the top convex block and the bottom turntable can synchronously rotate and move relative to the bearing platform, the rotating groove and the cover plate by taking the axis of the convex shaft as a rotating shaft to adjust the position.

13. The chair armrest of claim 11, wherein: the armrest seat is further provided with a first caulking groove, and a damping gear is arranged in the first caulking groove; wherein the bottom surface of the first element is further provided with a front-back first tooth row; wherein the damping gear is correspondingly meshed with the first tooth row; when the armrest component is moved forward and backward to adjust the position, the first element, the second element, the bearing platform and the protruding shaft are kept stationary, and the damping gear can rotate along the first tooth row, so that the armrest component can perform forward and backward adjustment movement with damping effect.

14. The chair armrest of claim 11, wherein: the first element is further provided with a second caulking groove, and a damping gear is arranged in the second caulking groove; wherein the bottom surface of the second element is further provided with a left-right second tooth row; wherein the damping gear is correspondingly meshed with the second gear row; when the armrest structure is moved to the left and right direction to adjust the position, the second element, the armrest bearing table and the protruding shaft are kept stationary, and the damping gear can rotate along the second gear row, so that the armrest structure can perform the left and right direction adjustment movement with the damping function.