TWI635825B - Handrail adjustment device - Google Patents

Abstract

An armrest adjusting device comprising an armrest for mounting on a top surface of an armrest bracket, the armrest comprising: an armrest pad; and an armrest seat for correspondingly forming an armrest frame up and down with the armrest cover of the armrest pad; a second component is fixed between the armrest seat and the top surface of the armrest bracket, and is provided with a convex shaft at a front and rear direction thereof; a first shaft cover; a second shaft cover; and at least one Damping member; wherein the armrest can be easily replaced with a different control mode with or without a button, and can be installed to perform adjustment movement before or after the damper or non-damping action, and let the handrail The overall side height is reduced and easy to assemble.

Description

Handrail adjustment device

The invention relates to an adjustment device for an armrest, in particular to an armrest structure which can be easily replaced with a button or a buttonless control and can be assembled for adjustment before or after a damped or undamped direction. Mobile adjustment device.

There are a lot of handrail adjustment devices in the field of handrails, such as US 8,474,914 B2 owned by the inventor of the present invention, but there are still room for improvement in the conventional handrail adjustment device, as follows:

1. Today's users often sit in chairs and work or play games by taking electronic devices (such as smart phones, tablets, etc.) on their hands or laptops on their laps. The armrests (handrails) on the left and right sides of the chair can be easily adjusted if they can be easily moved (such as the rotation adjustment) to the front of the user for the user's hand (such as the elbow) to abut or rest the notebook computer. The use of the handrail is efficient, however, the handrail does not meet the above needs of the user.

2. The armrest pad (handrail structure) is generally connected to the top surface of a hand rest. However, the armrest pad (handrail structure) has the function of adjusting the front, back, left and right, and rotation. So that the overall height of the armrest pad (handrail structure) is higher, not only makes The type of armrest brackets that are fitted together is limited, and the appearance of the overall chair is degraded, and the purchaser's willingness to purchase the armrest of the chair body or the armrest bracket is relatively affected.

3. Although the conventional armrests have been designed to have front, rear, left and right, and rotational movement adjustment functions, such chair armrests are generally divided into buttons (such as the pressing member 90 of the present invention) and no buttons for two different controls. The mode, in which the user has to press the button to adjust the movement in all directions, and the armrest without the button, the user can directly perform the movement adjustment in all directions without first pressing the button; However, for the different control modes of the chair armrest with or without buttons, the general armrest manufacturing end is separately designed into two structural types, that is, the conventional armrest can not be easily replaced with a button or no button as needed. The structural type, which causes an increase in manufacturing costs, is also not conducive to the production management of the manufacturing or third-party manufacturers.

4. The conventional armrests are mostly assembled by using a plurality of metal locks (such as screws), so the assembly work is not simplified, and the number of metal parts is increased, and the assembly cost is relatively increased, which is also inconsistent with environmental protection requirements.

Accordingly, the present invention is primarily directed to solving the above problems and provides an effective solution.

The main purpose of the present invention is to provide an adjustment device for a handrail without a button (pressing member), comprising an armrest for mounting on a top surface of an armrest bracket, the armrest comprising: an armrest pad; a handrail seat and the armrest The armrest cover of the pad is correspondingly combined into an armrest structure, and the armrest body forms a rectangular space; a first component; a second component is fixed between the armrest seat and the top surface of the armrest bracket, and the front and rear directions thereof a convex shaft is disposed in the middle; a first shaft cover; a second shaft cover and at least one damping member; wherein the convex shaft is kept stationary during use, and the armrest is The structure is adjusted to move in the backward direction, the left-right direction, or the rotation direction with or without a damping effect on the convex axis, and the side height of the armrest structure is lowered and the assembly is simplified.

A further object of the present invention is to provide an adjustment device for a handrail having a button (pressing member), comprising an armrest for mounting on a top surface of an armrest bracket, the armrest comprising: an armrest pad; The armrest cover of the armrest pad is vertically combined to form an armrest structure, wherein the armrest body forms a rectangular space; a first component; a second component is fixed between the armrest seat and the top surface of the armrest bracket, a front shaft is provided at the middle of the front and rear; a first shaft cover; a second shaft cover; at least one damper; and a pressing member provided with a front and rear third tooth row and toothed to the first a fourth tooth row of the component; a control member; and a locking member; wherein, in use, one of the pressing portions of the pressing member is first pressed to elastically move into an opening, and the third tooth row of the pressing member is The fourth tooth row of an element is released from the toothed state. At this time, when the armrest structure is moved to the adjusted position, the convex axis remains stationary, and the armrest structure is moved relative to the convex axis and selected with or without damping. Adjust left and right or rotate to When the pressing portion of the pressing member is released and elastically reset, the third tooth row of the pressing member is reset and meshed with the fourth tooth row of the first member, and at this time, one of the sliding members of the pressing member simultaneously drives the control member Elastically moving outwardly to reset, the locking member is elastically reset and a sixth tooth row can be simultaneously engaged with one of the second tooth row of the first shaft cover and one of the annular tooth teeth of the second shaft cover, thereby restoring the armrest Forming a fixed positioning state.

1‧‧‧Handrail

10‧‧‧arm pad

11‧‧‧Handrail cover

20‧‧‧Handrail

21‧‧‧First long slot

22‧‧‧First trough

23‧‧‧ gap

231‧‧‧First convex wall

30‧‧‧Rectangle space

40‧‧‧ first component

41‧‧‧First groove

42‧‧‧Second long slot

43‧‧‧ third long slot

431‧‧‧First slide rail

44‧‧‧Second inlay

45‧‧‧First tooth row

46‧‧‧ side wall

461‧‧‧fourth tooth row

47‧‧‧ platform

48‧‧‧second convex wall

50‧‧‧damper parts

50a‧‧‧First damping member

51‧‧‧First damping gear

50b‧‧‧second damper

52‧‧‧Second damper gear

50c‧‧‧ third damper

53‧‧‧ Third damping gear

60‧‧‧second component

61‧‧‧Shaft axis

70‧‧‧First shaft cover

71‧‧‧First chute

72‧‧‧Second tooth row

73‧‧‧round slot

74‧‧‧Circular track

75‧‧‧First stop wall

76‧‧‧ third inlay

80‧‧‧Second shaft cover

81‧‧‧Positioning bumps

82‧‧‧annular teeth

90‧‧‧Pressing parts

91‧‧‧ Flat section

92‧‧‧Flexible parts

93‧‧‧ slider

94‧‧‧ convex handle

95‧‧‧ third tooth row

100‧‧‧Controls

101‧‧‧Second chute

102‧‧‧ flat section

103‧‧‧First chute

104‧‧‧First bulge

105‧‧‧Second chute

106‧‧‧second bulge

110‧‧‧Locking parts

111‧‧‧ sixth tooth row

112‧‧‧Second elastic parts

113‧‧‧second groove

114‧‧‧3rd bulge

115‧‧‧fourth bulge

116‧‧‧The third chute

117‧‧‧4th chute

120‧‧‧Clock Department

130‧‧‧The Department of Engagement

140‧‧ ‧ spring

2‧‧‧Handrail bracket

3‧‧‧ top surface

4‧‧‧Handrail body

4a‧‧‧ Opening

5‧‧‧Electronic devices

1 is a perspective view showing a combination of an embodiment (no button type) according to the present invention.

Figure 2 is a side view of Figure 1.

FIG. 3 is an exploded perspective view of FIG. 1. FIG.

Figure 4 is a partially enlarged schematic view of a portion of Figure 3.

Figure 5 is a top plan view of Figure 4.

Figure 6 is an exploded perspective view of Figure 4.

Figure 7 is a side cross-sectional view of Figure 5.

Figure 8 is a top plan view of the front and rear adjustment movements of Figure 5.

FIG. 9 is a top view showing one of the left and right adjustment movements in FIG. 8. FIG.

Fig. 10 is a top plan view showing the movement in the rotation direction of Fig. 5.

Figure 11 is a partially enlarged exploded perspective view of Figure 6.

Figure 12 is a top plan view of the first shaft cover in the present invention when it is stationary on the second shaft cover.

Figure 13 is a top plan view showing the first shaft cover of Figure 12 rotated 90° on the second shaft cover.

Figure 14 is a top plan view showing the first shaft cover of Figure 12 rotated 60 on the second shaft cover.

Figure 15 is a perspective view showing a combination of another embodiment (with a push button type) according to the present invention.

Figure 16 is a side elevational view of Figure 15.

Figure 17 is an exploded perspective view of one of Figure 15.

Figure 18 is a partially enlarged schematic view of a portion of Figure 17.

Figure 19 is a top plan view of Figure 18.

Figure 20 is an exploded perspective view of Figure 18.

Figure 21 is a side elevational view showing one of the pressing member and the control member of the present invention.

Figure 22 is a partially enlarged schematic view of a portion of Figure 20.

Figure 23 is a top plan view of the armrest of Figure 19 when it is moved in the left and right direction.

Figure 24 is a perspective view of the present invention mounted on a chair.

Figure 25 is a schematic view showing the use of the user in Figure 24.

Figure 26 is a schematic plan view showing the state of rotation of the present invention when it is placed on the armrest bracket.

The structure and technical features of the present invention are described in detail below with reference to the drawings, wherein the drawings are only used to illustrate the structural relationship and related functions of the present invention. Therefore, the dimensions of the components are not set according to the actual ratio and are not limited. this invention.

1 to 10, the present embodiment is an adjustment device for a handrail without a button (pressing member), comprising an armrest 1 for mounting on a top surface 3 of an armrest bracket 2, the armrest 1 including an armrest pad 10, A handrail seat 20, a first component 40, at least one damper member 50, a second component 60, a first shaft cover 70 and a disk-shaped second shaft cover 80.

An armrest cover 11 is fixed in the interior of the armrest pad 10 to prevent the components in the armrest seat 20 from being disengaged from the original arrangement position, thereby facilitating the failure of the armrest 1 to malfunction due to abnormal displacement of a component.

The armrest 20 is combined with the armrest cover 11 of the armrest pad 10 to form an armrest frame 4, and a rectangular space 30 is formed in the armrest frame 4. The armrest 20 is provided with a front and rear direction (as shown in the figure X). The first long slot 21 of the axial direction is located at the middle of the front and rear direction as shown in FIG.

The first component 40 is disposed in the rectangular space 30 of the armrest structure 4, and is provided with a first downwardly downwardly extending groove 41. The first recess 41 is separately provided with a second long groove extending forward and backward. A hole 42 and a third long slot 43 in the left-right direction (in the Y-axis direction as shown) are located above the first slot hole 21 as shown in FIG.

The second component 60 is fixed between the armrest base 20 and the top surface 3 of the armrest bracket 2, and a convex shaft 61 is disposed in the middle of the front and rear direction, and the convex shaft 61 passes through the first handrail seat 20 The long slot 21 is further disposed in the third slotted hole 43 of the first component 40 as shown in FIG.

The first shaft cover 70 is correspondingly disposed on the convex shaft 61 of the second component 60 and located on the third long slot 43 of the first component 40 as shown in FIG. 6 to enable the first component 40 to The left and right sliding relative to the first shaft cover 70 is as shown in FIG.

The second shaft cover 80 is rotatably disposed in a circular groove 73 formed on the top surface of the first shaft cover 70 and is fixed on the convex shaft 61 of the second member 60 as shown in FIG. 6; When the armrest frame 4 is rotated and adjusted relative to the protruding shaft 61, the second shaft cover 80 is held still, and the first shaft cover 70 is rotated relative to the second shaft cover 80, so that the armrest frame 4, The first element 40 and the first shaft cover 70 can be synchronously rotated relative to the second shaft cover 80 to adjust the movement and then selectively positioned at one of the rotated angles as shown in FIGS. 10, 12 to 14.

At least one damper member 50 selects the following groups: a combination of one of the first damper member 50a, the second damper member 50b or the third damper member 50c or any two of the damper members 50 or both As shown in FIG. 8, that is, the manufacturing end can select any one of the first damper 50a, the second damper 50b, and the third damper 50c as needed, such as cost considerations, or select to install Any two of the damper members 50 are combined or three damper members 50 are mounted at the same time.

When the at least one damper member 50 is the first damper member 50a, the armrest holder 20 is correspondingly provided with a first recessed groove 22 before the first long slot 21, and then provided to the first damper 50a to one side. The first damper gear 51 of the first damper member 50a is disposed in the second long slot 42 of the first component 40 and is coupled to the left and right sides of the second slotted hole 42. One of the first rows of teeth arranged on the front and back is shown in Figs. 5 and 6.

When the at least one damper member 50 is the second damper member 50b, a second recess 44 is defined in the first recess 41 of the first component 40 for the second damper member 50b to be disposed therein. One of the two damper members 50b is coupled to one of the sides of the first shaft cover 70 The second row of teeth 72 is shown in Figures 5 and 6.

When the at least one damper member 50 is the third damper member 50c, the first shaft cover 70 is provided with a third recessed groove 76 for the third damper member 50 to be disposed therein, and the third damper member 50 is disposed thereon. A third damper gear 53 is coupled to the annular rib 82 of one of the outer rims of the second shaft cover 80, as shown in FIGS. 5 and 6.

When the armrest frame 4 is moved forward and backward by the adjustment position, the protruding shaft 61 is held still, and the first damper gear 51 of the first damper 50a is slid along the first tooth row 45 to The rearward adjustment movement of the armrest structure 4 with respect to the convex shaft 61 is shown in the direction of the arrow A in FIG.

When the armrest frame 4 is moved to the left and right direction to adjust the position, the protruding shaft 61 is held still, and the second damper gear 52 of the second damper 50b is slid along the second tooth row 72 to The left-right direction adjustment movement of the armrest structure 4 with respect to the convex shaft 61 is shown in the direction of the arrow B in FIG.

When the armrest structure 4 is rotated to the movement adjustment position, the convex shaft 61 is held still, and the third damper gear 53 of the third damper 50c is along the annular convex tooth 82 of the second shaft cover 80. Rotating so that the armrest frame 4 can perform a damped rotation relative to the convex shaft 61 is shown as an arrow C as shown in FIGS. 10, 13, and 14.

As shown in FIGS. 11 to 14, the circular groove 73 of the first shaft cover 70 is further provided with an annular track 74 centered on the convex axis 61 of the second member 60 (as shown in the Z-axis direction). Each of the two ends of the 74 is provided with a first blocking wall 75. The second shaft cover 80 is further provided with a positioning protrusion 81. The positioning protrusion 81 is slidably disposed in the circular rail 74. When the protrusion 81 is rotated onto the first blocking wall 75, the second shaft cover 80 stops rotating; wherein the track 74 enters The one step is configured to define a range of angles for enabling the second shaft cover 80 to rotate between the two first stop walls 75 within the defined angle range.

The armrest frame 4, the first element 40 and the first shaft cover 70 can be synchronously moved relative to the second shaft cover 80 to be rotationally adjusted and then selectively positioned at one of the rotated angles of 0° and 60°. And 90° but not limited as shown in FIGS. 12 to 14 and 26.

As shown in FIGS. 4 to 6, 8 to 11, 18 to 20, and 23, at least one card is further disposed on a side of the first recess 22, or the second recess 44, or the third recess 76. The first damper member 50a, or the second damper member 50b, or the third damper member 50c is further provided with at least one engaged portion 130 for correspondingly engaging with the at least one engaging portion 120. The first damper 50a, the second damper 50b, or the third damper 50c is respectively fixed to the first recess 22 or the second slot by the at least one engaging portion 120. 44, or the third recess 76 is advantageous for increasing the stability of the assembly.

As shown in FIG. 6, 7, 11, 20, and 22, at least one first sliding slot 71 is further disposed on the front or rear portion of the bottom surface of the first shaft cover 70; wherein the inner side of the first component 40 corresponds to at least one The first sliding slot 71 is further provided with at least one first sliding rail 431. The first shaft cover 70 is slidably sleeved on the at least one first sliding rail by the at least one first sliding slot portion 71. The 431 is advantageous for increasing the smoothness of the sliding.

15 to 23, this embodiment is an adjustment device for an armrest having a button (pressing member). This embodiment is further added to the structure of the embodiment without a button (pressing member) shown in FIGS. 1 to 14. A pressing member 90, a control member 100 and a locking member 110 are modified to be an adjusting device for the armrest having the button (pressing member).

This embodiment further provides an opening 4a on one side of the armrest frame 4. As shown in FIG. 15 , a gap 23 is formed on the inner side of the armrest 20 and corresponding to the opening 4a as shown in FIG. 16; wherein the side wall 46 above the notch 23 below the armrest 20 is disposed. A fourth row of teeth 461 is shown in Figs. 20 and 22; a platform 47 is disposed on the left and right sides of the second slot 44 as shown in Figs.

The pressing member 90 is externally inserted into the opening 4a of the armrest member 4. The pressing member 90 is provided with a pressing portion 91 at the outer end, and the first end is provided with a first elastic member 92 for elastically abutting against the opening. On the first convex wall 231 of the side of the notch 23 under the armrest 20, an anti-backward sliding bar 93 is provided between the pressing portion 91 and the first elastic member 92, and the inner side of the sliding bar 93 is disposed. An inwardly projecting lug 94 is disposed. The lug 94 is provided with a front and rear third tooth row 95 and is coupled to the fourth tooth row 461 of the first member 40.

The control member 100 is disposed on the platform 47 of the first component 40 in the left and right direction. The outer end of the control member 100 is provided with a second sliding slot 101 having an opening downwardly for sliding back and forth on the pressing member 90. As shown in FIG. 21, the inner side of the control member 100 is provided with a flat portion 102. The front side of the flat portion 102 is provided with a first chute 103 and a first protrusion 104 from the inside to the outside. a second chute 105 and a second protrusion 106.

The locking member 110 is disposed between the second slot 44 of the first component 40 and the platform 47 and is located under the control member 100. The sixth tooth row 111 is configured to be simultaneously engaged with the first shaft cover. The second tooth row 72 of the 70 and the annular convex tooth 82 of the disc-shaped second shaft cover 80 and a second elastic member 112 elastically abut against one of the second convex walls 48 near the platform 47 of the first member 40. And the second recess 113 of the opening is provided for the control member 100; wherein one side of the second recess 113 corresponds to the front side of the control member 100 and is sequentially provided with a third from the inside and the outside. a protrusion 114, a third oblique groove 116, a fourth protrusion 115 and a fourth oblique groove 117; wherein the third protrusion 114 and the fourth protrusion 115 The first chute 103 and the second chute 105 can be slid into the first chute 103 and the second chute 105 respectively. The third chute 116 and the fourth chute 117 can respectively be used for the first convex of the control member 100. The first protrusions 104 and the second protrusions 106 are synchronously slid therein; wherein when the control member 100 moves inward, the third protrusions 114 and the fourth protrusions 115 are respectively synchronously controlled by the control unit 100 A protrusion 104 and the second protrusion 106 are pressed against each other.

When the pressing portion 91 of the pressing member 90 is pressed and elastically moved into the opening 4a (as indicated by an arrow D in FIG. 23), the third tooth row 95 on the boss 94 of the pressing member 90 is Moving inward to cancel the toothed state with the fourth tooth row 461 of the first component 40. At this time, when the armrest frame 4 is moved forward and backward by the adjustment position, the protruding shaft 61 is held still, the first damping member The first damper gear 51 of 50a is slidably engaged along the first tooth row 45, so that the armrest structure 4 is damped with respect to the convex shaft 61 before the backward adjustment movement is as shown by the arrow A direction of FIG. At this time, the slider 93 of the pressing member 90 synchronously drives the control member 100 to elastically move inwardly, and the first protrusion 104 and the second protrusion 106 respectively leave the third chute on the locking member 110. 116 and the fourth chute 117 are respectively pressed against the third protrusion 114 and the fourth protrusion 115, thereby forcing the locking member 110 to move forward while releasing the sixth tooth row 111 and the first The toothed state of the second tooth row 72 and the annular tooth 82. At this time, when the armrest frame 4 is moved to the left and right direction to adjust the position, the convex shaft 61 is secured. The second damper gear 52 of the second damper member 50b is slidably engaged along the second tooth row 72 so that the armrest frame 4 can be damped to the left and right direction relative to the convex shaft 61. The direction of the arrow B of FIG. 9; when the armrest frame 4 is rotated to the movement adjustment position, the convex shaft 61 is held still, and the third damper gear 53 of the third damper 50c is along. The convex teeth 82 of the second shaft cover 80 are rotated to adjust the rotational movement of the armrest frame 4 relative to the convex shaft 61 in a direction indicated by an arrow C in FIG.

When the pressing portion 91 of the pressing member 90 is released and elastically reset (as shown in FIG. 19), the protrusion 94 of the pressing member 90 is elastically moved outward and reset, and the third tooth row 95 of the pressing member 90 is obtained. Resetting and splicing to the fourth tooth row 461 of the first component 40, the slider 93 of the pressing member 90 simultaneously drives the control member 100 to elastically move outwardly to reset, and the locking member 110 is elastically reset and The sixth tooth row 111 can be simultaneously engaged with the second tooth row 72 of the first shaft cover 70 and the annular tooth 82 of the second shaft cover 80, so that the armrest 1 can be restored to form a fixed positioning state as shown in FIG. 24 shows.

As shown in FIG. 17, the inner side of the armrest cover 11 in the armrest pad 10 is further provided with an upper notch 12, but not limited thereto. The upper notch 12 and the underside 23 of the armrest base 20 and the armrest frame 4 The corresponding overlap of the openings 4a helps to increase the smooth sliding of the pressing member 90.

As shown in FIG. 17, a notch portion 13 is further provided on the notch 12 of the armrest cover 11 but is not limited. The position of the blocking portion 13 relative to the position of the notch 23 under the armrest seat 20 helps to stabilize the position. The position of the control member 100 is controlled to avoid falling off.

As shown in FIGS. 20 and 22, the pressing member 90 is further provided with a spring 140 to increase the elastic pressure of the first convex wall 231 of the armrest base 20 without limitation; the locking member 110 is further provided with a spring 140 to increase the pair. The elasticity of the second convex wall 48 of the first member 40 is pressed but not limited.

The armrest adjustment device of the present invention has the following advantages as compared with other prior art:

(1) The armrest structure 4 of the present invention can perform the adjustment movement of the front-rear or the left-right direction or the rotation direction at the top surface 3 of the armrest bracket 2, so that the user's use requirements can be effectively satisfied as shown in Figs. , greatly improving the efficiency of the use of the handrail.

(2) The components of the present invention can relatively reduce the height of the side of the armrest pad (handrail structure) by proper arrangement, and not only the type of the armrest bracket that is fitted together is not It will be limited and will enhance the aesthetics of the overall chair, which will help the manufacturer of the chair body or armrest bracket to purchase the armrest of the present invention.

(3) The button (pressing member) type armrest embodiment of the present invention is based on the structure of the buttonless (pressing member) embodiment of the present invention, by adding a pressing member 90, a control member 100, and The locking member 110 is completed, so that the invention can be easily replaced with a button type or a buttonless structure according to the needs of use, relatively reducing the manufacturing cost, and also facilitating the production management of the manufacturing end or the third party.

(4) The invention can be assembled by using a few metal locks (such as screws), so that the assembly work is simplified, the metal parts are minimized, the assembly cost is relatively reduced, and the environmental protection requirements are also met.

The above is only the preferred embodiments of the present invention, and is intended to be illustrative, and not restrictive, and it is understood by those of ordinary skill in the art that Many changes, modifications, and even equivalents may be made without departing from the scope of the invention.

Claims (9)

An armrest adjusting device includes an armrest for mounting on a top surface of an armrest bracket, the armrest comprising: an armrest pad having an armrest cover fixed therein; and a handrail seat attached to the armrest cover of the armrest pad The upper and lower portions are combined into an armrest structure, and the armrest body defines a rectangular space, wherein the armrest seat is provided with a first and a long longitudinal groove in the middle of the front and rear direction; a first component is disposed on the armrest structure a rectangular space from the top to the bottom, wherein the first groove is separately provided with a second long slot in the front and rear direction, and a third long slot in the left and right direction is located in the first recess a second slot is fixed between the armrest seat and the top surface of the armrest bracket, and a convex shaft is disposed in the middle of the front and rear direction, and the protruding shaft passes through the armrest seat. a first long slot, and is further disposed in the third slot of the first component; a first shaft cover correspondingly disposed on the convex axis of the second component and located at the first component Above the three long slots to enable the first component to be left relative to the first axle cover a second shaft cover that is rotatably disposed in a circular groove formed on the top surface of the first shaft cover and fixed on the convex shaft of the second component Wherein the second shaft cover remains stationary when the armrest structure is rotationally moved relative to the convex axis, and the first shaft cover is rotated relative to the second shaft cover to cause the armrest frame, the first The component and the first shaft cover are synchronously movable relative to the second shaft cover to be rotationally adjusted and repositioned to be at an angle after one of the rotations; and at least one damping member is selected from the following group of first damping members, a second damping member or a first Any one of the three damper members or a combination of the two damper members or the three of the damper members simultaneously; wherein when the at least one damper member is the first damper member, the armrest seat is correspondingly provided with a first recessed groove The first long slot is provided with the first damper member disposed to the one side of the first slot, and the first damper gear of the first damper member is disposed in the second slot of the first component and is engaged One of the first and second rows of the front and rear direction is disposed on one of the left and right sides of the second long slot; wherein when the at least one damper is the second damper, the first component is first Correspondingly, a second slot is disposed in the recess for the second damper to be disposed therein, and one of the second damper gears is coupled to one of the second teeth on one side of the first shaft cover a row; wherein when the at least one damper member is the third damper member, the first shaft cover is provided with a third recessed groove for the third damper member to be disposed therein, and the third damper member is third The damper gear is coupled with an annular rib of one of the outer edges of the second shaft cover; wherein the armrest When the body is moved forward and backward to adjust the position, the protruding shaft remains unmoved, and at this time, the first damper gear of the first damper member is slid along the first tooth row so that the armrest body is opposite to the convex portion The rearward adjustment movement is performed before the shaft is damped; wherein the convex shaft system remains stationary when the armrest structure is moved to the left and right direction, and the second damping gear of the second damping member is along the second The tooth row is slidably engaged to enable the armrest structure to perform a left-right adjustment movement with a damping effect relative to the convex shaft; wherein the armature structure is held stationary when the armrest structure is rotated to the movement adjustment position, The third damper gear of the third damper member rotates along the annular convex teeth of the second shaft cover to enable the yoke body to perform a damped rotational direction adjustment movement relative to the convex shaft; wherein the first shaft An annular track centered on the convex axis of the second component is further disposed in the circular groove of the cover, and a first blocking wall is disposed at each end of the circular track; wherein the second shaft cover is further Step is provided with a positioning protrusion, the positioning protrusion is slidably disposed in the annular track, and when the positioning protrusion is rotated to the first blocking wall, the second shaft cover stops rotating; wherein the track further The ties have a defined angular extent such that the second shaft cover is rotatable within the defined angle range and between the two first stop walls. The adjusting device of claim 1, wherein the first recessed groove, or the second recessed groove, or the third recessed groove is further provided with at least one engaging portion; wherein the first damping member, Or the second damper member or the third damper member is further provided with at least one engaged portion for correspondingly engaging with the at least one engaging portion, such that the first damper member, or the second damper member, or the The third damper member is respectively fixed to the first recessed groove, or the second recessed groove, or the third embedded slot by the at least one engaging portion. The adjusting device of claim 1, wherein at least one first sliding slot is further disposed on the front or rear portion of the bottom surface of the first shaft cover; wherein the inner side of the first component is further disposed corresponding to at least one first sliding slot There is at least one first sliding rail; wherein the first shaft cover is slidably sleeved on the at least one first sliding rail by the at least one first sliding groove portion. An armrest adjustment device includes an armrest for being disposed on a top surface of an armrest bracket, the armrest comprising: an armrest pad having an armrest cover fixed therein; and a handrail seat attached to the armrest cover of the armrest pad Correspondingly combined into a handrail structure, the armrest body defines a rectangular space, the armrest seat is provided with a first and a first longitudinal slot in the middle of the front and rear direction; wherein an opening is arranged on one side of the armrest structure; Wherein the inner side of the armrest seat is provided with a notch and correspondingly overlaps the opening; a first component is disposed in the rectangular space of the armrest structure, and is provided with a top-down a first groove, wherein the first groove is separately provided with a second long slot in the front and rear direction, and a third long slot in the left and right direction is located above the first slot; wherein the armrest is opposite to the armrest a fourth tooth row is disposed on the sidewall above the lower notch; a platform is disposed on the left and right sides of the second slot; a second component is fixed on the top surface of the armrest bracket and the armrest bracket Between the front and rear of the middle, a convex shaft is disposed, the male shaft passes through the first long slot of the armrest seat, and is further disposed in the third long slot of the first component; a first axis a cover correspondingly disposed on the convex shaft of the second component and located above the third long slot of the first component, so that the first component can slide left and right relative to the first shaft cover; a second shaft cover of the disc shape, the second shaft cover is rotatably disposed in a circular groove formed on the top surface of the first shaft cover and fixed in the third long slot a second shaft of the second member; wherein the second shaft cover remains stationary when the armrest member is rotationally adjusted relative to the convex axis, the first The cover rotates relative to the second shaft cover, so that the armrest structure, the first component and the first shaft cover can be synchronously moved relative to the second shaft cover, and then selectively positioned after one of the rotations An angle of at least one damping member, which is selected from the following group: a first damping member, a second damping member or a third damping member, or a combination of any two of the damping members or both; Wherein, when the at least one damper member is the first damper member, the armrest seat is correspondingly disposed with a first recessed groove before the first long slot and then the first damper is disposed to one side thereof, and One of the first damper members is disposed in the second long slot of the first component and is coupled to one of the left and right sides of the second slotted hole a first row of teeth; wherein when the at least one damping member is the second damping member, the first groove of the first member is opposite A second recessed groove is provided for the second damper member to be disposed therein, and one of the second damper members is coupled to one of the second rows of teeth on one side of the first shaft cover; When the at least one damper member is the third damper member, the first shaft cover is provided with a third recessed groove for the third damper member disposed therein, and the third damper gear of the third damper member And a ring-shaped convex tooth arranged on one of the outer edges of the second shaft cover; a pressing member is externally inserted into the opening of the armrest structure, and the pressing member is The outer end is provided with a pressing portion, and the inner end is provided with a first elastic member for elastically abutting against a first convex wall on the side of the notch of the armrest seat, and a pressing portion is disposed between the pressing portion and the first elastic member. a rearwardly extending slider, the inner side of the slider is provided with an inwardly projecting shank, the shank is provided with a front and rear third tooth row and is meshed with the fourth tooth of the first component a control member disposed on the platform of the first component in a left-right direction, the outer end of the control member is provided with an opening and a second sliding downward The inner side of the control member is provided with a flat portion, and the front side of the flat portion is sequentially provided with a first chute and a first convex portion from the inner side to the outer side. a second chute and a second protrusion, wherein when the control member moves inward, the third protrusion and the fourth protrusion are respectively synchronously received by the first protrusion of the control member and the a second protrusion is pressed against; and a locking member is disposed between the second slot of the first component and the platform and located under the control member, and is provided with a sixth tooth row capable of simultaneously engaging a second tooth row of the first shaft cover and an annular convex tooth of the disc-shaped second shaft cover, a second elastic member elastically abutting against a second convex wall near the platform of the first component, and a a second groove having an opening upward is provided for the control member; wherein a side of the second groove corresponds to a front side of the control member and a third protrusion and a third angle are sequentially disposed from the inside to the outside a slot, a fourth protrusion and a fourth chute; wherein the third protrusion and The fourth protrusions can be synchronously slid into the first chute and the second chute of the control member respectively; wherein the third chute and the fourth chute can respectively provide the first protrusion of the control member And sliding the second protrusion synchronously therein; wherein when the pressing portion of the pressing member is pressed to elastically move into the opening, the third tooth row on the protrusion of the pressing member moves inwardly Disengaging the fourth tooth row of the first component, and when the armrest structure is moved forward and backward by the adjustment position, the male shaft remains stationary, and the first damping gear of the first damping member is along The first tooth row is slidably engaged to move the armrest structure to the rearward direction before being damped with respect to the convex shaft; at this time, the slider of the pressing member synchronously drives the control member to elastically move inwardly, The first protrusion and the second protrusion respectively leave the third chute and the fourth chute on the locking member, and are respectively pressed against the third protrusion and the fourth protrusion, thereby forcing the The locking member moves forward while releasing the sixth tooth row and the second tooth row and the annular tooth At this time, when the armrest structure is moved to the left and right direction to adjust the position, the convex shaft system remains stationary, and the second damper gear of the second damper member is slid along the second tooth row to make the armrest The body can be adjusted in a left-right direction with a damping effect relative to the convex axis; at this time, when the armrest structure is rotated to the moving adjustment position, the convex axis remains stationary, and the third damping of the third damping member at this time The gear rotates along the convex teeth of the second shaft cover to enable the armrest structure to perform a damping movement relative to the convex shaft; wherein when the pressing portion of the pressing member is released and elastically resets, The shank of the pressing member is elastically moved outwardly and resetted, and the third tooth row of the pressing member is reset and meshed with the fourth tooth row of the first component, and the slider of the pressing member simultaneously drives the control The member is elastically moved outwardly to reset, and the locking member is elastically reset and the sixth tooth row can be simultaneously engaged with the first shaft cover The two teeth row and the annular convex teeth of the second shaft cover return the armrest to form a fixed positioning state. The adjusting device of claim 4, wherein the circular groove of the first shaft cover is further provided with an annular track centered on the convex axis of the second element, and a first blocking wall is disposed at each end of the circular track The second shaft cover is further provided with a positioning protrusion, the positioning protrusion is slidably disposed in the circular track, and when the positioning protrusion is rotated to the first blocking wall, the second axis The cover stops rotating; wherein the track is further configured to define a range of angles for enabling the second shaft cover to rotate between the two defined first angular walls. The adjusting device of claim 4, wherein the first recessed groove, or the second recessed groove, or the side of the third recessed groove is further provided with at least one engaging portion; wherein the first damping member, Or the second damper member or the third damper member is further provided with at least one engaged portion for correspondingly engaging with the at least one engaging portion, such that the first damper member, or the second damper member, or the The third damper member is respectively fixed to the first recessed groove, or the second recessed groove, or the third embedded slot by the at least one engaging portion. The adjusting device of claim 4, wherein at least one first sliding slot is further disposed on the front or rear portion of the bottom surface of the first shaft cover; wherein the inner side of the first component corresponds to at least one first sliding slot There is at least one first sliding rail; wherein the first shaft cover is slidably sleeved on the at least one first sliding rail by the at least one first sliding groove portion. The adjusting device of claim 4, wherein an inner side of the armrest cover in the armrest pad is further provided with an upper notch, and the upper notch overlaps with the notch below the armrest seat and the opening of the armrest frame. The adjusting device of claim 8, wherein the armrest cover is further provided with a stop at the notch The position of the stop portion relative to the position of the notch below the armrest seat.