WO2012062032A1

WO2012062032A1 - Chair armrest adjustment device

Info

Publication number: WO2012062032A1
Application number: PCT/CN2011/001076
Authority: WO
Inventors: 陈得峻; 林静宜
Original assignee: Chen Te-Chun; Lin Jing-Yi
Priority date: 2010-11-09
Filing date: 2011-06-30
Publication date: 2012-05-18
Also published as: KR20130045407A; KR101534414B1

Abstract

A chair armrest adjustment device is provided, which includes an armrest (1)provided on the top surface of an armrest bracket(200), the bottom end of the bracket(200) is connected with a chair seat(100), so as to adjust the position of the forward or backward movement of the armrest(1) relative to the chair seat(100). Wherein a first assembly(50) provided inside the armrest(1) is fixedly combined with the bracket(200) to enable the armrest(1) to move forward or backward relative to the first assembly(50); otherwise, instead of the first assembly(50), a second assembly(60) provided between the armrest and the bracket is fixedly combined with the bracket(200) to enable the armrest(1) to move left or right relative to the second assembly(60).

Description

Chair armrest adjustment device

The invention relates to a chair armrest adjusting device, in particular to a chair armrest capable of adjusting the front, rear, left and right moving positions and the adjusting operation is simple and convenient. Background technique

In addition to the various designs available in the appearance design, the known armrests are designed to enhance the ride comfort of the rider, so that the armrests can be adjusted in different directions depending on the size or needs of the rider. To enhance the convenience and comfort of the chair armrest.

The armrest of the chair generally comprises an armrest and an armrest bracket. The armrest is arranged on the top surface of the armrest bracket, and the armrest bracket is locked on the left and right sides of the seat cushion; and the adjustment manner of the armrest can be divided into: horizontal adjustment, for adjusting The front and rear positions of the armrests are rotated to the left and right and are generally disposed on the armrest body; the height direction is adjusted to adjust the height of the armrests and is generally disposed on the armrest bracket. For example, US 2008/0084103 discloses a handrail structure which can adjust the movement of the handrail in the front, back, up and down, left and right directions, but the number of components is large and the structure is complicated, which makes the assembly work difficult and increases the production cost, so it is not conducive to a large number. Production and market competition. Summary of the invention

The main object of the present invention is to provide a chair armrest adjusting device, comprising: an armrest mounted on a top surface of an armrest bracket, a lower portion of the armrest bracket being attached to a seat, and the armrest being oppositely The seat adjusts the moving position in the front and rear directions, so that the handrail can achieve a stable, smooth, quiet movement effect and can accurately control the moving distance and the stop position.

An object of the present invention is to provide a chair armrest adjusting device, which can adjust the moving position in the left and right directions in addition to the front and rear directions of the seat, so that the armrest can be stabilized and slipped. Smooth, quiet movement and precise control of its moving distance and stop position. DRAWINGS

BRIEF DESCRIPTION OF THE DRAWINGS Fig. 1 is a structural view showing the relationship between the front and rear adjusting device and the seat of the armrest of the present invention.

Figure 2 is a perspective view of the front and rear adjustment device of the armrest of the present invention.

Figure 3 is an exploded view of the front and rear adjustment device of the armrest of the present invention. 4, 5, and 6 are schematic views showing the operation state of the front and rear adjustment device of the armrest of the present invention.

Figure 7 is a perspective view of the armrest adjustment device of the present invention.

Figure 8 is an exploded view of the armrest adjustment device of the present invention.

Figure 9 is another exploded view of the armrest adjustment device of the present invention.

Figure 10 is a cross-sectional view taken along line 10-10 of Figure 7.

Figure 11 is a cross-sectional view taken along line 11-11 of Figure 7.

12 and 13 are schematic views continuing the moving state in the left-right direction in Fig. 10.

Figures 14 and 15 are schematic views continuing the state of movement in the front-rear direction of Figure 11 .

Fig. 16 is a view showing the arrangement of the armrests of the present invention in the form of a table top, and the relationship with the seat. detailed description

(First Embodiment)

Referring to Figures 1-3, the armrest adjusting device of the present invention is disposed on the side of the seat cushion of a seat 100 as a hand and can adjust the front and rear positions of the armrest. The armrest adjusting device of the present invention includes an armrest 1 disposed on a top surface of the armrest bracket 200, and a lower portion of the armrest bracket 200 extends with a bump 300, and the bump 300 is attached to a bottom surface of the armrest 100. And the armrest 1 can be displaced back and forth in the horizontal direction with respect to the armrest bracket 200, as indicated by the forward and backward arrows in FIG. 2, that is, the position in which the seat 100 is moved in the front and rear directions.

Referring to FIG. 3, the armrest 1 includes an armrest pad 10, a handrail seat 20, a damper member 30, a pressing member 40, and a first assembly 50, wherein the armrest pad 10 and the armrest seat 20 are correspondingly combined into an armrest member 2, and A rectangular inner space is formed between the pad 10 and the armrest holder 20 (i.e., inside the armrest member 2) for providing a related member, and an opening 2a is formed in one side of the armrest member 2 for the pusher 40 to be worn.

Two symmetrical and equal length long slots 21 extending along the front and rear displacement directions of the armrest 1 are provided in front of and behind the armrest base 20, and the length of the long slot holes 21 can be used as the maximum stroke of the armrest base 20. The side distance of the inner side of the armrest seat 20 (viewed in the direction of the seat) is provided with a notch 22 and can overlap with the opening 2a of the armrest member 2, and the bottom surface of the armrest seat 20 on the inner side of the notch 22 is provided. The sliding groove 23 is provided for the pressing member 40 to move at the upper limit position of the sliding groove 23 and to avoid detachment from the sliding groove 23. The outer side of the handrail seat 20 (viewed in the direction of the seat) is provided with a fitting groove 24 for the damping member 30 to be inserted. A protrusion 241 is disposed on one side of the recess 24 corresponding to the notch 22 to block the pressing member 40.

The damper member 30 is a member having an effect of reducing impact and eliminating excess force to provide a smooth stability effect. The damper member 30 is mounted on the recess 24 of the armrest base 20, and the opposite sides of the damper member 30 are further provided with a resilient latching block 31 for the card corresponding to the recessed slot 24. The slot 242 is snap-fitted.

One end of the pressing member 40 is provided with a pressing portion 41 for pressing, and the other opposite end is provided with an elastic member 42 for elastically acting by pressing and releasing the pressing member 40, and the elastic member 42 can be provided. The spring or the elastic piece on the pressing member 40 is integrally formed with the pressing member 40 to form a tubular structure, and an opening groove 43 of an appropriate size and opening is disposed between the pressing portion 41 and the elastic member 42. The bottom surface of the opening groove 43 is disposed adjacent to the elastic member 42—the side is provided with at least one convex portion 44, so that a channel 45 is formed on a side close to the pressing portion 41. The pressing member 40 is disposed through the notch 22 of the armrest seat 20 The sliding groove 23 on the bottom surface of the armrest base 20 and the elastic member 42 elastically abut against the protrusion 241 on the side of the fitting groove 24 of the armrest seat 20; when the pressing portion 41 is pressed to make the pressing member 40 along the chute When the inward movement 23 is performed, the elastic member 42 is compressed to abut against the projection 241, and when the pressing portion 41 is released and elasticized by the return of the elastic member 42, the pressing member 40 is moved outward along the chute 23.

The first component 50 is disposed inside the armrest member 2, and the front and rear sections of the bottom surface 51 of the first component 50 (viewed in the direction of the seat) are respectively provided with a protrusion 52; the bottom surface of the first component 50 A positioning structure 53 such as a rack structure is provided on the 51 for correspondingly engaging the damping member 30, and a plurality of equally spaced grooves 54 are provided to cooperate with the pressing member 40. The groove 54 corresponds to The opening groove 43 in the pressing member 40 is engageable with the convex portion 44 on the opening groove 43.

When assembled, the two studs 52 on the first component 50 respectively pass down through the two long slots 21 in the middle of the armrest mount 20 and are fixedly combined with the corresponding holes 200a of the armrest bracket 200, and the positioning structure 53 is The damper member 30 is abutted against the damper member 30, and the recess 54 is engaged with at least one projection 44 on the opening groove 43 of the pressing member 40.

As can be seen from the above, the armrest pad 10, the armrest seat 20, the damper member 30 and the pressing member 40 can be assembled into the movable armrest 1, and the first component 50 is fixedly coupled with the armrest bracket 200. When the operation is moved, the armrest 1 is The first component 50 and the armrest bracket 200 can be displaced forward and backward, and can be stably moved by the positioning structure 53 of the first component 50 against the damping component 30, and the groove 54 and the convex can also be utilized. The joint is positioned and positioned to enable the armrest 1 to achieve a shifting adjustment effect before and after, for example, as indicated by the forward and backward arrows in FIG.

Fig. 4 is a view showing a state before the armrest 1 of the front and rear adjusting device of the armrest of the present invention is adjusted and displaced.

Referring to FIG. 5, the pressing portion 41 of the pressing member 40 is pressed to move the pressing member 40 inward along the sliding groove 23 of the armrest holder 20 (as indicated by an arrow A), and the elastic member 42 of the pressing member 40 is embedded. The protrusions 241 on the sides of the groove 24 are compressed to be blocked, and the plurality of grooves 54 on the first assembly 50 correspond to the opening grooves 43. The passage 45 is provided for adjustment of the front and rear shifts of the armrest 1.

Referring to FIG. 6, in the case of FIG. 5, the handrail 1 is adjusted to be shifted to the left (the rearward displacement is actually observed in the direction of the seat) as indicated by the arrow B, and may also be reversely shifted to the right (not shown). Moving the armrest 1 to a proper position, releasing the pressing force and utilizing the elastic restoring force of the elastic member 42 to move the pressing member 40 outward along the chute 23 of the armrest seat 20, and the first component A plurality of grooves 54 on the 50 engage the projections 44 of the open groove 43 to stop the handrail 1 from shifting and form the positioning shown in FIG.

In addition, when the armrest 1 of the present invention is displaced forward and backward, the damping member 30 and the positioning structure 53 of the first assembly 50 have a damping effect, so that the armrest 1 can be made stable and smooth during the displacement process. A quiet moving effect, and a control effect of an accurate moving distance can be formed by the plurality of equally spaced grooves 54 on the first assembly 50 and the convex portions 44 on the opening groove 43 of the pressing member 40.

(Second embodiment)

Referring to Figures 1 and 7-9, the armrest adjusting device of the present invention is disposed on the side of the seat cushion of the seat 100 as a hand, and enables the armrest to be adjusted front and rear and left and right. The armrest adjustment device of the present invention includes an armrest 1 mounted on a top surface of the armrest bracket 200, and a lower portion of the armrest bracket 200 extends with a bump 300 attached to a bottom surface of the seat 100, and the armrest 1 can be horizontally moved back and forth and left and right with respect to the armrest bracket 200, as shown by the arrows in the front-rear direction and the left-right direction in FIG. 7, that is, in the front, rear, and left and right directions relative to the seat 100.

The armrest 1 includes an armrest pad 10, a handrail seat 20, two damper members 30, a pressing member 40, a first component 50, a second component 60, and an adjusting member 70; wherein the armrest pad 10 and the armrest seat 20 are correspondingly combined An armrest member 2, and a rectangular inner space is formed between the armrest pad 10 and the armrest seat 20 (that is, inside the armrest member 2) for providing a related member, and an opening 2a is opened on one side of the armrest member 2 The pressing member 40 is provided for piercing.

Two symmetrical and equal length long slot holes 21 extending in the front-rear displacement direction of the armrest 1 are provided at the front and rear positions of the armrest base 20, and the length of the long slot holes 21 can be used as the maximum stroke of the armrest seat 20. The moving distance, the inner side (viewed in the direction of the occupant) is provided with a notch 22 and can overlap with the opening 2a of the armrest member 2, and the bottom surface of the armrest 20 on the inner side of the notch 22 is provided with a sliding slot 23 The pressing member 40 is moved at the upper limit position of the chute 23 to avoid detachment from the chute 23, and the accommodating hole 25 for accommodating the adjusting member 70 is provided on the armrest seat 20 corresponding to the notch 22, and the accommodating hole 25 is provided. The surrounding ring is provided with a protrusion 251 having a proper height to block the pressing member 40, and the outer side of the armrest seat 20 (viewed in the direction of the seat) is provided with a fitting groove 24 for The damper member 30 is embedded and fixed.

Each of the damper members 30 is a member having a shock-reducing effect and eliminating an excessive force to provide a smooth and stable effect, such as a gear having a damping function, wherein a damper member 30 is mounted on the recess 24 of the armrest base 20, the damper member 30 The opposite sides of the two sides are also provided with elastic blocks 31 for engaging and fixing with the corresponding slots 242 of the slots 24 .

The adjusting member 70 is disposed in the receiving hole 25 of the armrest holder 20, and extends upwardly and through the protrusion 251 of the receiving hole 25. The bottom surface thereof is provided with at least one convex portion 71, and the upper and lower positions of the adjusting portion are provided with two opposite lugs 72. And the lug passes over the protrusion 251 of the receiving hole 25, and the lug 72 is further provided with a slope portion 721.

One end of the pressing member 40 is provided with a pressable pressing portion 41, and the other opposite end is provided with a diagonal guiding groove 46 corresponding to the lug 72 of the adjusting member 70. The pressing member 40 is configured by the inclined guiding groove 46. The slanting portion 721 of the lug 72 of the adjusting member 70 is relatively moved on the oblique guiding groove 46 to form an up and down movement; the pressing portion 41 and the oblique guiding groove 46 are provided with an appropriate size and opening. An upward opening groove 43, a bottom surface of the opening groove 43 is provided with at least one convex portion 44 near the side surface of the inclined guiding groove 46, so that a channel 45 is formed on a side close to the pressing portion 41; and the pressing member 40 and the receiving hole There is further provided an elastic member 80 which is elastically contacted with the receiving hole, and the elastic member 80 may be formed of a spring or a spring piece or integrally formed with the pressing member 40 to simplify the structure for the pressing member 40 to be pressed. And the elastic member can be elastically operated after being released; wherein the pressing member 40 is disposed on the sliding groove 23 of the bottom surface of the armrest base 20, and the lug 32 of the adjusting member 70 is inclined The guide groove 46 is correspondingly matched, and The elastic member 80 elastically abuts against the projection 251 of the accommodating hole 25 of the armrest holder 20.

The first component 50 is disposed in the interior of the armrest member 2, and a front pillar 51 is disposed in the front and rear sections (viewed in the direction of the seat), and a bottom pillar 52 is respectively connected to a guiding block 55. The bottom surface 51 of the first component 50 is provided with a positioning structure 53 such as a rack structure for correspondingly engaging the damping component 30, and a plurality of equally spaced grooves 54 are provided to correspond to the pressing member 40. The groove 54 is correspondingly engaged with the opening groove 43 of the pressing member 40 and can be engaged with the convex portion 44 of the opening groove 43. The first component 50 is further provided with a long slot 56 as the When the adjusting member 70 moves upward, the extending direction of the long slot 56 is the same as the direction in which the armrest 1 is displaced forward and backward, and the length of the long slot 56 can be used as the moving distance of the maximum stroke of the armrest 20; A positioning structure 551 such as a rack structure is provided on one side of the guide block 55 to cooperate with the damper member 30.

The second component 60 is disposed under the armrest member 2, and the front and rear sections of the second component 60 (to sit a screw hole 65 is disposed in the middle of the top surface of the second component 60. The top surface of the second component 60 is provided with a plurality of equally spaced grooves 61 for positioning correspondingly with the convex portion 71 of the adjusting member 70, and The front and rear sections of the top surface are respectively provided with long slot holes 62 in the left and right direction, and the bottom surface corresponding to the long slot holes 62 is provided with guide grooves 63 passing through the left and right ends; as shown in FIG. 9, the second component The bottom surface of the 60 is provided with a recessed groove 64 for inserting and fixing the damper member 30. The opposite sides of the damper member 30 are further provided with a latching block 31 for engaging and fixing the corresponding slot 641 of the recessed groove 64.

When assembled, the two protrusions 52 of the first component 50 respectively pass through the two long slots 21 at the middle of the armrest base 20 and the two long slots 62 of the second assembly 60, respectively. The guide block 55 is coupled to the bottom end of the stud 52, and the guide block 55 is located in the bottom guide groove 63 of the second assembly 60 and is relatively movable, and the positioning structure 53 is abutted against one of the guide blocks 53. On the damper member 30, the positioning structure 551 abuts against the other damper member 30, and the groove 54 is correspondingly engaged with at least one convex portion 44 on the opening groove 43 of the pressing member 40. The plurality of grooves 61 are correspondingly engaged with the at least one convex portion 71 of the adjusting member 70, and are passed through the screw holes 65 of the second assembly 60 by bolts 90 to be fixedly combined with the corresponding holes 200a of the armrest bracket 200.

When the pressing portion 41 is pressed to compress the elastic member 80 and abut against the protrusion 251 of the receiving hole 25, the pressing member 40 moves inward along the sliding slot 23, and the adjusting member 70 is driven to move upward with the second assembly. 60 is separated; when the pressing portion 41 is released, the elastic member 80 returns to the elastic force to move the pressing member 40 outward along the sliding groove 23, and the adjusting member 70 is moved downward to form a corresponding fit with the second assembly 60.

As can be seen from the above, the armrest pad 10, the armrest seat 20, the pressing member 40, the first component 50 and the adjusting member 70 are assembled into the movable armrest 1, and the second component 60 is fixedly coupled to the armrest bracket 200. When the operation is moved, the armrest 1 can be displaced back and forth with respect to the second component 60, the first component 50 and the armrest bracket 200, and can be abutted against one of the damping members 30 by the positioning structure 53 of the first component 50. For the stable movement, the groove 54 can be engaged with the convex portion 44 of the pressing member 40 to position the armrest 1 to achieve front and rear displacement adjustment effects; and the armrest 1 can be made relative to the second assembly 60 and the armrest bracket 200. The left and right displacements can be stably moved by the positioning structure 551 of the guide block 55 against the other damper 30, and the groove 61 can be positioned and engaged with the convex portion 71 of the adjusting member 70, so that The armrest 1 achieves the left and right shift adjustment effect, as shown in the forward and backward and left and right arrows of Fig. 7.

As shown in Fig. 10, it is a cross-sectional view taken along line 10-10 in Fig. 7. As shown in Fig. 11, it is a cross-sectional view taken along line 11-11 in Fig. 7. At the same time, the armrest 1 of the chair armrest adjusting device of the present invention is adjusted before the shifting status.

Referring to FIGS. 12-13, the pressing portion 41 of the pressing member 40 is pressed to move the pressing member 40 inward along the sliding groove 23 of the armrest holder 20 (as indicated by an arrow A) to drive the adjusting member 70 to move upward. Separate from the second component 60, the elastic member 80 is compressed by the protrusion 251 of the receiving hole 25, and the plurality of grooves 54 on the first component 50 correspond to the passage 45 of the opening groove 43, The armrest 1 can be adjusted to shift left and right, as shown in FIG. 13 to the left (as indicated by arrow B), or reversely to the right (not shown).

Referring to Figures 14-15, it is adjusted in the situation of Figure 12 that the armrest 1 is displaced to the right (actually shifted forward in the direction of the occupant) as indicated by the arrow C, and can also be reversely displaced to the left ( Not moving); moving the armrest 1 to a proper position, releasing the pressing force and using the elastic restoring force of the elastic member 80 to move the pressing member 40 outward along the chute 23 of the armrest seat 20, and making the first A plurality of recesses 54 in an assembly 50 are correspondingly engaged with the projections 44 of the open slots 43 to stop the shifting of the armrest 1 and to form a position.

Referring to FIG. 16, the armrest pad 10 of the armrest 1 can also be designed as a handrail pad 10a having a table top type, and combined with the contents of the first and second embodiments described above, so that the above-mentioned armrest pad having a table top type can be used. The armrest 1 of 10a can also adjust the movement positions of the front and rear directions and the left and right directions.

With the above-mentioned structural structure, when the armrest 1 of the present invention is displaced in the front and rear directions and the left and right directions, the two damper members 30 and the positioning structure 53 of the first assembly 50 and the positioning structure 551 of the guide block 55, respectively. A movement pattern with a damping effect between them, so that the armrest 1 can exhibit a stable, smooth, quiet movement effect during the displacement, and is arranged by a plurality of equidistant positions on the first assembly 50. The control effect of forming an accurate moving distance between the groove 54 and the convex portion 44 on the opening groove 43 of the pressing member 40 is also controlled by a plurality of equidistantly arranged grooves 61 on the second assembly 60. The control effect of the exact moving distance is formed between the convex portions 71 of the member 70.

The chair armrest adjusting device of the invention has a simple structure, a small number of components, reduces assembly time, is very simple to operate, is very quiet when moving, and has considerable structural difference with a conventional person, and can improve the use efficiency and reduce Production costs in turn increase product competitiveness.

Claims

Rights request

A chair armrest adjusting device, comprising an armrest, which is mounted on a top surface of the armrest bracket, the lower part of the armrest bracket is connected to the seat, and the armrest can be adjusted in the front and rear directions with respect to the seat a moving position, wherein the armrest comprises:

Armrest pad

The armrest seat is combined with the armrest pad to form an armrest member. The armrest member defines a rectangular space. The armrest member has an opening on one side thereof, and the armrest seat is provided at an intermediate position along the shifting direction of the armrest. a long slot, the inner side of the armrest seat is provided with a notch corresponding to the opening, and the armrest seat is further provided with a recessed groove, and a side of the recessed groove is provided with a protrusion;

a first component disposed in the armrest member, wherein the front and rear sections of the bottom surface of the first component are respectively provided with a protrusion, and the protrusion is fixed by the long slot in the middle of the armrest seat and the armrest bracket The first component is provided with a positioning structure and a plurality of equidistantly arranged grooves;

a damper member embedded in the recess of the armrest seat and abutting against the positioning structure for providing a damping effect;

a pressing member disposed in the armrest member through the opening, the pressing member is provided with a pressing portion at one end thereof, and an elastic member is disposed at the other opposite end, and the elastic member elastically abuts against the armrest seat An opening groove having an opening upward is disposed between the pressing portion and the elastic member, and a bottom surface of the opening groove is provided with at least one convex portion on a side of the elastic member, so as to be pressed near Forming a channel on one side; wherein, when the pressing member is pressed to elastically move inwardly, a groove on the first component corresponds to the channel on the pressing member and is in the channel Move position

When the pressing member is released to be elastically moved outward, the groove on the first member corresponds to the convex portion that is engaged with the pressing member.

The armrest adjusting device according to claim 1, wherein a sliding groove is formed on an inner bottom surface of the notch on an inner side of the armrest seat for the pressing member to slide on the sliding groove.

3. The chair armrest adjusting device according to claim 1, wherein the fitting groove is provided on a bottom side of the armrest seat.

4. A chair armrest adjusting device, comprising: an armrest mounted on a top surface of an armrest bracket, the lower portion of the armrest bracket being attached to a seat such that the armrest can face forward relative to the seat Adjusting the moving position in the rear, left, and right directions, wherein the armrest includes: Armrest pad

a handrail seat, which is combined with the armrest pad to form an armrest member; a rectangular space is formed in the armrest member, and an opening is disposed on one side of the armrest member; and the middle position of the armrest seat is disposed along the armrest a long slot extending in the direction of the slot, the inner side of the armrest seat is provided with a notch corresponding to the opening, and the armrest seat is further provided with a receiving hole having a protrusion around the ring; The adjusting member is provided with at least one convex portion, and the upper portion of the adjusting member is provided with two opposite lugs protruding over the receiving hole;

a pressing member is disposed in the armrest member through the opening, the pressing member is provided with a pressing portion at one end thereof, and a diagonal guiding groove corresponding to the lug of the adjusting member is disposed at the other opposite end; An opening groove having an opening upward is disposed between the portion and the inclined guiding groove, and a bottom surface of the opening groove is disposed at a side of the inclined guiding groove at least one convex portion, thereby forming a channel on a side close to the pressing portion; An elastic member is disposed between the pressing member and the protrusion of the receiving hole, and the elastic member elastically abuts against the protrusion of the pressing member and the receiving hole, wherein the pressing member is horizontally moved back and forth by the inclined guiding groove to The adjusting member is movable up and down with respect to the pressing member;

a second component disposed under the armrest member and fixed in combination with the armrest bracket, wherein a middle portion of the top surface of the second component is provided with a plurality of four slots arranged equidistantly for use in the adjustment The protrusions of the second component are correspondingly matched, and the front and rear sections of the second component are respectively provided with long slot holes extending along the left and right displacement directions of the armrest, and the bottom surface corresponding to the long slot holes is provided with a through hole a guiding groove at both ends, wherein the second component is further provided with a recessed groove;

a first component disposed inside the armrest member, wherein the front and rear sections of the bottom surface are respectively provided with a protrusion, the protrusion penetrates the long slot of the armrest seat and the long slot of the second component And a guiding block is fixed on the bottom end of the protruding post, so that the guiding block is located in the guiding groove of the second component, and the guiding block is provided with a positioning structure; the first component is provided with a positioning structure and Equally arranged grooves;

Two dampers are respectively embedded in the armrest seat and the recesses of the second component, and respectively abut against the positioning structures of the first component and the guide block to provide a damping effect;

Wherein, when the pressing member is pressed to move inwardly, the adjusting member moves upward to separate the convex portion on the adjusting member from the groove on the second component, and the first component The upper groove corresponds to the passage on the pressing member and is movable on the passage, and the guide block on the bottom end of the protruding post of the first assembly can be moved in the guiding groove; When the pressing member moves outward, the adjusting member moves downwards, so that the convex portion on the adjusting member corresponds to the groove on the second component, and the concave portion on the first component The groove corresponds to a convex portion that is engaged with the pressing member.

The armrest adjusting device according to claim 4, wherein a sliding groove is formed on an inner bottom surface of the notch on the inner side of the armrest seat for the pressing member to slide on the sliding groove.

The armrest adjusting device according to claim 4, wherein the fitting groove on the second component is disposed outside the lower bottom surface of the second component.

7. The armrest adjustment device according to claim 4, wherein the lug of the adjusting member has a slope portion that corresponds to the oblique guide groove of the pressing member.

8. The armrest adjusting device according to claim 4, wherein the front and rear sections of the second component are respectively provided with a screw hole, and the bolt is fixed to the armrest bracket through the screw hole.

The armrest adjusting device according to claim 4, wherein the first component is further provided with a long slot for the movable space when the adjusting member is raised and moved, and the extending direction of the long slot is The front and rear shift directions of the armrests are the same.

The armrest adjusting device according to claim 1 or 4, wherein the armrest pad of the armrest is an armrest pad having a table top type.