TWI635826B - Button structure of chair armrest adjustment device - Google Patents

Abstract

A button structure of a chair armrest adjusting device is disposed in an armrest, and the armrest is mounted on a convex shaft of a second component on a top surface of the armrest bracket, the armrest includes a handrail seat, and a first armrest An element, a first shaft cover, a button, a control member and a locking member; wherein when the button is pressed inward, the first connecting sliding portion of the button is held before and after the second connecting sliding portion of the control member The armrest is adjusted to move in the forward, backward, left and right directions and the rotation direction with respect to the convex axis, so that the armrest can be adjusted by the single button to achieve the forward and backward, the left and right direction, and the rotation direction. Multiple adjustments to the movement.

Description

Button structure of chair armrest adjustment device

The invention relates to a button structure, in particular to a button structure of a chair armrest adjusting device.

There are a number of prior art in the field of armrest adjustment devices, such as U.S. Patent No. 8,474,914 B2, which is owned by the inventor of the present invention. However, the prior art armrest adjustment device has a forward and backward and left and right movement adjustment function, but is limited by The structure of the button and the interlocking relationship of its associated components cannot simultaneously adjust the movement of the rotational direction. Moreover, in the armrest adjusting device of the prior art, the number of button structures and related components for controlling the armrest movement adjusting function is large and the structure is also complicated, so that the overall thickness (height) of the armrest adjusting device is relatively increased. As a result, the appearance of the handrail adjusting device becomes thick and unattractive, and the efficiency of using the handrail adjusting device with the handrail is relatively reduced.

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 a button structure for a chair armrest adjusting device, which is disposed in an armrest, and the armrest is mounted on a top surface of a handrail bracket. On one of the convex shafts, the armrest includes a handrail seat, a first component, a first shaft cover, a button, a control member and a locking member; the handrail seat is disposed under the armrest, at one of a side notch is provided corresponding to an opening of the lower part of the armrest; the first component is disposed in the armrest seat, wherein a fourth tooth row is disposed on a side wall of the upper side of the notch below the armrest seat, Wherein the first component is provided with an upper notch for corresponding to the underside of the armrest, the horizontal position of the upper notch is higher than the lower notch; the first axial cover is correspondingly disposed on the convex axis of the second component and Provided on the first component to enable the first component to slide left and right relative to the first shaft cover; the button is externally inserted into the opening and located on the notch below the armrest seat, The first end of the button is provided with a first flat 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 below the armrest seat, the first flat portion and the first portion a front and rear first connecting sliding portion is disposed between the elastic members, the first The inner side of the connecting sliding portion is provided with an inwardly projecting convex shank, and the convex shank is provided with a front and rear third tooth row and is meshed with the fourth tooth row of the first component; the control member is disposed in the left and right direction The upper notch can be slidable back and forth with respect to the lower notch on the notch of the first component, wherein the outer end of the control member is provided with a front and rear second connecting sliding portion for sliding forward and backward a first connecting sliding portion of the button; the locking member is disposed above the first member and under the control member, and is elastically displaceable in the front-rear direction to lock or disengage the first shaft cover; wherein When the button is pressed inward, the first flat portion of the button is pressed and elastically moved into the opening, and the third tooth row on the knob of the button is moved inward to be the fourth component of the first component The tooth row is disengaged, and the first element and the protruding shaft are kept stationary, and the armrest seat is moved forward and backward relative to the first element and the protruding shaft; wherein the armrest seat is opposite to the first When the component and the protruding shaft are moved forward and backward, The control member of the notch on the first element also remain stationary, provided on the armrest frame under the button of the notch i.e. The first connecting sliding portion can be slid forward and backward with respect to the second connecting sliding portion of the control member, and the button maintains a sliding fit relationship with the control member without disengagement; wherein when the button is inward When pressed, the first connecting sliding portion of the button also synchronously drives the control member to move inwardly, thereby forcing the locking member to move forward to synchronously release the locking state with the first shaft cover, and the first shaft cover at this time And the first shaft and the first shaft are adjusted to move left and right relative to the first shaft cover and the protruding shaft; wherein when the button is pressed inward, the first connection of the button slides The portion also synchronously drives the control member to move inwardly, thereby forcing the locking member to move forward to synchronously release the locking state with the first shaft cover. At this time, the protruding shaft remains stationary, the armrest seat, the first component and The first shaft cover is rotated relative to the convex shaft to adjust the movement; wherein when the button is released outward, the knob of the button is elastically moved outward to reset, and the third tooth row of the button is reset and Teeth in the first a fourth tooth row of the member, the first connecting sliding portion of the button synchronously drives the control member to elastically move outwardly to reset, and the locking member is reset and the first shaft cover and the first component are locked, so that The armrest returns to form a fixed positioning state, so that the armrest can be operated with a single button to achieve multiple adjustment functions of the forward and backward, left and right, and rotational direction adjustment movements.

1‧‧‧Handrail

10‧‧‧arm pad

11‧‧‧Handrail cover

12‧‧‧Upper opening

13‧‧‧stops

20‧‧‧Handrail

21‧‧‧First long slot

22‧‧‧First trough

23‧‧‧Under gap

231‧‧‧First convex wall

30‧‧‧Rectangle space

40‧‧‧ first component

41‧‧‧First groove

42‧‧‧Second long slot

43‧‧‧ third long slot

44‧‧‧Second inlay

45‧‧‧First tooth row

46‧‧‧ side wall

461‧‧‧fourth tooth row

47‧‧‧ platform

48‧‧‧second convex wall

49‧‧‧Upper gap

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‧‧‧Second tooth row

72‧‧‧ round slot

73‧‧‧ Third inlay

80‧‧‧Second shaft cover

81‧‧‧annular teeth

90‧‧‧ button

91‧‧‧First flat section

92‧‧‧Flexible parts

93‧‧‧First connection sliding part

93a‧‧‧First slider

93b‧‧‧First chute

94‧‧‧ convex handle

95‧‧‧ third tooth row

100‧‧‧Controls

101‧‧‧Second connection sliding part

101a‧‧‧second chute

101b‧‧‧Second slider

102‧‧‧Second 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

1 is a schematic perspective view of a combination of an embodiment of the present invention.

Figure 2 is a side plan view of Figure 1.

Figure 3 is an exploded perspective view of the armrest pad of Figure 1.

Figure 4 is a partially enlarged perspective view of Figure 3.

Figure 5 is a schematic plan view of the top of the handrail pad taken away from Figure 1.

Figure 6 is an exploded perspective view of Figure 5.

Figure 7 is an exploded plan view showing one embodiment of the button and control member of the present invention.

Figure 8 is a partially enlarged perspective view of Figure 6.

Figure 9 is a schematic plan view of the armrest of Figure 5 in an adjusted movement state (forward and backward).

Figure 10 is a schematic plan view showing the state of rotation of the present invention when it is placed on the armrest support.

Figure 11 is a top plan view showing the first shaft cover of the present invention in a stationary state on the second shaft cover.

Figure 12 is a top plan view showing the first shaft cover of the present invention in a state of rotation on the second shaft cover.

Figure 13 is an exploded plan view showing another embodiment of the push button and the control member of the present invention.

Figure 14 is a schematic plan view of the armrest of Figure 5 in an adjusted moving state (left and right).

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.

Referring to FIGS. 1 to 14, in particular FIGS. 6 to 8, 13 , the present invention is a button structure of a chair armrest adjusting device, which is disposed in an armrest 1 which is mounted on a top surface 3 of an armrest bracket 2 The armrest 1 includes a handrail seat 20, a first component 40, a first shaft cover 70, a button 90, a control member 100 and a locking member 110.

The armrest base 20 is disposed at a lower portion of the armrest 1, and has a lower notch 23 on one side thereof for opening one opening 4a corresponding to the lower portion of the armrest 1. As shown in FIG.

The first component 40 is disposed in the armrest base 20 with respect to the armrest seat A fourth tooth row 461 is disposed on a side wall 46 above the notch 23; wherein the first member 40 is provided with an upper notch 49 for corresponding to the underside 23 of the handrail seat 20, and the horizontal position of the upper notch 49 is Higher than the lower gap 23.

The first shaft cover 70 is disposed on the protruding shaft 61 of the second component 60 and is disposed on the first component 40 so that the first component 40 can be oriented left and right relative to the first shaft cover 70. (Sliding in the Y-axis direction in Figures 1, 2, 5, 9, 10, and 14).

The button 90 is externally inserted into the opening 4a and located on the underside 23 of the armrest base 20. The first end of the button 90 is provided with a first flat portion 91, and the inner end is provided with a first elastic member 92. The first flat portion 91 and the first elastic member 92 are provided with a front and rear direction (see FIG. 1 and FIG. 2). 5, 9, 10, 14 in the X-axis direction) the first connecting sliding portion 93, the inner connecting jaw 93 of the first connecting sliding portion 93 is provided with an inwardly projecting convex shank 94, and the male shank 94 is provided with a front and rear The third tooth row 95 is meshed with the fourth tooth row 461 of the first member 40 (as in the X-axis direction in FIGS. 1, 2, 5, 9, 10, 14).

The control member 100 is disposed on the left and right sides (in the Y-axis direction of FIGS. 1, 2, 5, 9, 10, and 14) on the notch 49 of the first member 40, and the upper notch 49 can be opposite to the lower notch. 23 is slid in the forward and backward direction (in the X-axis direction in FIGS. 1, 2, 5, 9, 10, 14), wherein the outer end of the control member 100 is provided with a forward and backward direction (as shown in FIGS. 1, 2, 5, 9, and 10). The second connecting sliding portion 101 of the X-axis direction of 14 is sleeved on the first connecting sliding portion 93 of the button 90 so as to be slidable forward and backward.

The locking member 110 is disposed on the first member 40 and under the control member 100, and is elastically displaceable in the forward and backward directions (in the X-axis direction in FIGS. 1, 2, 5, 9, 10, and 14). The first shaft cover 70 is locked or detached.

When the button 90 is pressed inward (as indicated by the arrow D in FIG. 9), The first flat portion 91 of the button 90 is pressed and elastically moved into the opening 4a, and the third tooth row 95 on the lug 94 of the button 90 is moved inwardly to the fourth tooth of the first member 40. The row 461 is released from the toothed state, and the first member 40 and the protruding shaft 61 are held still. The armrest 20 is forward and backward with respect to the first member 40 and the protruding shaft 61 (see FIGS. 1, 2, and 5). The adjustment movement in the X-axis direction of 9, 10, and 14 is as shown by the arrow A direction in FIG.

When the armrest holder 20 is moved forward and backward relative to the first member 40 and the protruding shaft 61 (in the X-axis direction in FIGS. 1, 2, 5, 9, 10, and 14), the first component is disposed. The control member 100 on the notch 49 above 40 is also kept stationary, and the button 90 disposed on the notch 23 below the armrest base 20 can be used by the first connecting sliding portion 93 to be second with respect to the control member 100. The connecting sliding portion 101 is slid in the forward and backward direction (in the X-axis direction in FIGS. 1, 2, 5, 9, 10, and 14), and the button 90 is kept in a sliding fit relationship with the control member 100 without being disengaged.

When the button 90 is pressed inward (as indicated by the direction of the arrow D in FIG. 9), the first connecting sliding portion 93 of the button 90 also synchronously drives the control member 100 to move inwardly, thereby forcing the locking member 110 to The first shaft cover 70 and the protruding shaft 61 are kept stationary, and the first shaft cover 70 and the first shaft 40 are fixed relative to the first shaft. The lid 70 and the projection shaft 61 are adjusted in the left-right direction (in the Y-axis direction in FIGS. 1, 2, 5, 9, 10, and 14) as shown by the direction of the arrow E in FIG.

When the button 90 is pressed inward (as indicated by the direction of the arrow D in FIG. 9), the first connecting sliding portion 93 of the button 90 also synchronously drives the control member 100 to move inwardly, thereby forcing the locking member 110 to The first shaft cover 70 is unlocked in synchronization with the front movement, and the protruding shaft 61 is held still. The armrest 20, the first member 40 and the first shaft cover 70 are opposite to the protruding shaft 61. Perform the rotation direction (as shown in the Z-axis directions in Figures 1, 2, 5, 9, 10, and 14) to move as shown in Figure 12B. The direction is shown.

When the button 90 is released outward (as shown in FIG. 5), the knob 94 of the button 90 is elastically moved outwardly and reset, and the third tooth row 95 of the button 90 is reset and toothed to the first The fourth tooth row 461 of the component 40, the first connecting sliding portion 93 of the button 90 synchronously drives the control member 100 to elastically move outwardly and reset, and the locking member 110 is reset and locked to the first shaft cover 70 and The first component 40 causes the armrest 1 to return to a fixed positioning state.

Through the design of the button structure of the present invention, the armrest 1 can be operated with a single button to achieve multiple adjustment functions of the forward and backward, left and right, and rotational direction adjustment movements.

Referring to FIGS. 1 to 14, a detailed description will be given of a button structure of the present invention applied to a full chair armrest. For example, a button structure of a chair armrest adjusting device is provided in an armrest 1 for mounting on the armrest 1 On the top surface 3 of the armrest bracket 2, the armrest 1 includes an armrest pad 10, a handrail seat 20, a first component 40, a second component 60, a first shaft cover 70, and a second shaft cover 80. A button 90, a control member 100 and a locking member 110.

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 (see FIGS. The first long slot 21 of the X-axis direction of 5, 9, 10, and 14 is located in the middle of the front-rear direction (shown in the X-axis direction in FIGS. 1, 2, 5, 9, 10, and 14). As shown in FIG. 6 , an opening 4a is disposed on one side of the armrest frame 4; wherein the inner side of the armrest base 20 is opened The notch 23 is next and overlaps with the opening 4a as shown in FIG. 2.

The first component 40 is disposed in the rectangular space 30 of the armrest frame 4, and is provided with a first groove 41 from the top to the bottom. The first groove 41 is separately provided with a front and rear direction (see FIG. 2, 5, 9, 10, 14 in the X-axis direction) the second long slot 42 and a left-right direction (as shown in the Y-axis directions of Figures 1, 2, 5, 9, 10, 14) The third long slot 43 is located above the first slotted hole 21 as shown in FIG. 6; wherein a fourth tooth row 461 is disposed on the side wall 46 above the notch 23 below the armrest mount 20; A platform 47 is disposed on the left and right sides of the second recess 44; wherein the first component 40 is provided with an upper notch 49 for corresponding to the notch 23 under the armrest 20, and the horizontal position of the upper notch 49 is higher than The lower gap 23 is.

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 first shaft cover 70 is slid in the right and left direction (shown in the Y-axis direction in FIGS. 1, 2, 5, 9, 10, and 14).

The second shaft cover 80 is rotatably disposed in a circular groove 72 formed on the top surface of the first shaft cover 70 and fixed on the convex shaft 61 of the second member 60 as shown in FIGS. 6, 11, and 12. Referring to FIGS. 10 to 12, wherein the second shaft cover 80 is held stationary when the armrest frame 4 is rotationally moved with respect to the convex shaft 61, the first shaft cover 70 is opposite to the second shaft cover. The rotation of the armrest member 4, the first member 40 and the first shaft cover 70 can be synchronously moved relative to the second shaft cover 80 to adjust the movement and repositioned at an angle after one of the rotations.

The button 90 is externally inserted into the opening 4a of the armrest frame 4. The button 90 is provided with a first flat portion 91 at the outer end, and a first elastic member 92 is disposed at the inner end for resiliently resisting the A first convex wall 231 is disposed on one of the sides of the notch 23 under the armrest 20, and a front and rear direction is disposed between the first flat portion 91 and the first elastic member 92 (see FIGS. 1, 2, 5, 9, and 10, The first connecting sliding portion 93 of the X-axis direction of the first connecting sliding portion 93 is provided with an inwardly projecting convex shank 94. The male shank 94 is provided with a front and rear third tooth row 95. And meshing with the fourth tooth row 461 of the first component 40.

The control member 100 is disposed on the platform 47 of the first component 40 in a left-right direction. The outer end of the control member 100 is provided with a forward and backward direction (as shown in the X-axis directions in FIGS. 1, 2, 5, 9, 10, and 14). The second connecting sliding portion 101 is slidably disposed on the first connecting sliding portion 93 of the button 90 as shown in FIGS. 6, 7, and 13, and the second flat portion 102 is disposed at the inner end of the control member 100. The first side of the second flat portion 102 is provided with a first chute 103, a first protrusion 104, a second chute 105 and a second protrusion 106 from the inside to the outside.

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 71 of the 70 and the annular convex tooth 81 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 can slide into the control member 100 synchronously The first chute 103 and the second chute 105; wherein the third chute 116 and the fourth chute 117 can respectively supply the first protrusion 104 of the control member 100 and the first The two protrusions 106 are synchronously slid therein; wherein when the control member 100 moves inward, the third protrusions 114 and the fourth protrusions 115 are synchronously respectively received by the first protrusions 104 of the control member 100 and The second protrusion 106 is pressed against, that is, the locking member 110 can be pushed forward as shown in FIG.

As shown in FIGS. 5, 6, and 8, the armrest 1 is further provided with at least one damper 50, but the damper 50 is selected from the following group: a first damper 50a, a second damper 50b or a The combination of the damper member 50 or any two of the damper members 50 in the third damper member 50c has both.

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. 6, 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 for the manufacturing end (such as cost consideration), or choose 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 of the second slotted hole 42 (as shown in the figure). One of the Y-axis directions of 1, 2, 5, 9, 10, and 14) is one of the forward and backward directions (the X-axis direction in FIGS. 1, 2, 5, 9, 10, and 14) A row of teeth 45 is shown in Figures 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 71 is shown in FIGS. 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 recess 73 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 81 of one of the outer rims of the second shaft cover 80, as shown in FIGS. 5 and 6.

When the first flat portion 91 of the button 90 is pressed and elastically moved into the opening 4a (as indicated by the arrow D in FIG. 9), the third tooth row 95 on the projection 94 of the button 90 Moving inward to cancel the toothing state with the fourth tooth row 461 of the first member 40, when the armrest frame 4 is forward and backward (as shown in FIG. 1, 2, 5, 9, 10, 14) When the adjustment position is moved in the axial direction, the convex shaft 61 is kept stationary, and the first damper gear 51 of the first damper 50a is slidably slid along the first tooth row 45, so that the armrest frame 4 is opposed to The adjustment movement of the convex shaft 61 in the backward direction (the X-axis direction in FIGS. 1, 2, 5, 9, 10, 14) before the damping shaft 61 is damped is shown in the direction of the arrow A in FIG. 9; The first connecting sliding portion 93 synchronously drives the control member 100 to move inwardly. The first protrusion 104 and the second protrusion 106 respectively separate from the third oblique groove 116 and the fourth oblique portion of the locking member 110. The groove 117 is pressed against the third protrusion 114 and the fourth protrusion 115 respectively, thereby forcing the locking member 110 to move forward while releasing the sixth tooth row 111 and the second tooth row 71 and the The toothed state of the annular tooth 81. At this time, when the armrest frame 4 is moved to the left and right direction (in the Y-axis direction in FIGS. 1, 2, 5, 9, 10, and 14), the convex shaft 61 is attached. The second damper gear 52 of the second damper member 50b is slidably engaged along the second tooth row 71 so that the armrest frame 4 can be damped to the left and right with respect to the convex shaft 61 ( As shown in Fig. 1, 2, 5, 9, 10, 14 in the Y-axis direction, the movement is as shown by the arrow E in Fig. 14; at this time, when the armrest frame 4 is rotated (see Figs. 1, 2, and 5, When the adjustment position is moved in the Z-axis direction of 9, 10, 14), the convex shaft 61 is kept stationary, and the third damping gear 53 of the third damper 50c is along the second shaft cover 80. The annular protruding teeth 81 are rotated to enable the armrest structure 4 to be rotatably rotated relative to the convex shaft 61 (in the Z-axis direction in FIGS. 1, 2, 5, 9, 10, 14). The direction B in Fig. 12 is shown.

When the first flat portion 91 of the button 90 is released and elastically reset (as shown in FIG. 5), the knob 94 of the button 90 is elastically moved outwardly and reset, and the third tooth row 95 of the button 90 is reset. And the first connecting sliding portion 93 of the button 90 simultaneously drives the control member 100 to elastically move outwardly and reset, so that the locking member 110 is elastically reset and The sixth tooth row 111 can be simultaneously engaged with the second tooth row 71 of the first shaft cover 70 and the annular tooth 81 of the second shaft cover 80, so that the armrest 1 is restored to form a fixed positioning state as shown in the figure. 5 is shown.

As shown in FIG. 7, the first connecting sliding portion 93 of the button 90 is further extended in a forward direction (in the X-axis direction in FIGS. 1, 2, 5, 9, 10, 14) of the first slider 93a. However, it is not limited; wherein the second connecting sliding portion 101 of the control member 100 is further connected to the second sliding slot 101a with the opening facing downward and backward (in the X-axis direction in FIGS. 1, 2, 5, 9, 10, 14). However, it is not limited; wherein the first sliding bar 93a can slide in the second sliding slot 101a to help increase the smoothness of the operation.

As shown in FIG. 13, the first connecting sliding portion 93 of the button 90 is further connected to the first sliding groove 93b with the opening facing downward and backward (in the X-axis direction in FIGS. 1, 2, 5, 9, 10, 14). However, the second connecting sliding portion 101 of the control member 100 is further extended in a forward direction (in the X-axis direction in FIGS. 1, 2, 5, 9, 10, 14) of the second sliding strip 101b. However, it is not limited; wherein the second slider 101b can slide in the first sliding slot 93b to help increase the smoothness of the operation.

As shown in FIG. 3, an upper opening portion 12 is further provided on the inner side of the armrest cover 11 in the armrest pad 10, but the upper opening portion 12 and the underside of the armrest base 20 and the armrest frame are not limited. The overlap of the openings 4a of 4 helps to increase the smooth sliding of the button 90.

As shown in FIG. 3, the upper portion 12 of the armrest cover 11 is further provided with a stopper portion 13 but is not limited. The position of the stopper portion 13 is prevented from falling off relative to the position of the notch 23 below the armrest holder 20.

As shown in FIG. 4 to FIG. 6 and FIG. 9 , at least one engaging portion 120 is further disposed on a side of the first slot 22 or the second slot 44 or the third slot 73; wherein the first The 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, so that the first damper member 50a, Or the second damper 50b or the third damper 50c is respectively fixed to the first slot 22, the second slot 44, or the third slot by the at least one engaging portion 120. 73 is conducive to increasing the stability of the assembly.

As shown in FIGS. 6 and 8, 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, which is advantageous for increasing the elastic force.

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 (6)

A button structure of a chair armrest adjusting device is disposed in an armrest (1), and the armrest (1) is mounted on a top surface (3) of the armrest bracket (2). On one of the protruding shafts (61), the armrest (1) comprises: a handrail seat (20) which is disposed under the armrest (1) and has a lower notch (23) on one side thereof for corresponding An opening (4a) at a lower portion of the armrest (1); a first member (40) disposed in the armrest seat (20) with respect to the upper portion of the recess (23) below the armrest seat (20) a fourth tooth row (461) is disposed on one of the side walls (46); wherein the first component (40) is provided with an upper notch (49) for corresponding to the notch (23) under the armrest seat (20), the upper portion The horizontal position of the notch (49) is higher than the lower notch (23); a first shaft cover (70) corresponding to the convex axis (61) of the second component (60) and disposed therethrough a first member (40) for allowing the first member (40) to slide left and right relative to the first shaft cover (70); a button (90) inserted into the opening from the outside to the outside ( 4a) is located on the notch (23) below the armrest (20), and a first flat portion is provided at the outer end of the button (90) (9) 1), the inner end is provided with a first elastic member (92) for elastically abutting against a first convex wall (231) on one side of the notch (23) below the armrest seat (20), the first flat portion (91) is provided with a first connecting sliding portion (93) between the first elastic member (92), and an inner convex portion of the first connecting sliding portion (93) is provided with an inwardly protruding convex handle ( 94) The shank (94) is provided with a front and rear third tooth row (95) and is coupled to the fourth tooth row (461) of the first component (40); a control member (100) The left and right directions are disposed on the notch (49) above the first component (40), The upper notch (49) is slidable forward and backward relative to the lower notch (23), wherein the outer end of the control member (100) is provided with a front and rear second connecting sliding portion (101) for slidable back and forth a first connecting sliding portion (93) of the button (90); and a locking member (110) disposed on the first member (40) and below the control member (100), The first axial cover (70) can be locked in or out elastically; wherein when the button (90) is pressed inward, the first flat portion (91) of the button (90) is pressed and elastic Moving to the opening (4a), the third row of teeth (95) on the knob (94) of the button (90) will move inwardly to the fourth row of teeth of the first member (40) ( 461) releasing the toothed state, wherein the first component (40) and the protruding shaft (61) are kept stationary, and the armrest seat (20) is opposite to the first component (40) and the protruding shaft (61). Adjusting movement in the forward and backward direction; wherein when the armrest seat (20) is moved forward and backward relative to the first element (40) and the protruding shaft (61), a gap is formed on the first component (40) (49) The control member (100) remains stationary and is located on the armrest (20) The button (90) on the lower notch (23) can be slid back and forth with respect to the second connecting sliding portion (101) of the control member (100) by the first connecting sliding portion (93) And the button (90) maintains a sliding fit relationship with the control member (100) without disengagement; wherein when the button (90) is pressed inward, the first connection sliding portion of the button (90) 93) synchronously driving the control member (100) to move inwardly, thereby forcing the locking member (110) to move forward to synchronously release the locking state of the first shaft cover (70), at this time, the first shaft cover (70) and the protruding shaft (61) is kept stationary, and the armrest base (20) and the first component (40) are laterally adjusted and moved relative to the first shaft cover (70) and the protruding shaft (61). ; When the button (90) is pressed inward, the first connecting sliding portion (93) of the button (90) also synchronously drives the control member (100) to move inwardly, thereby forcing the locking member (110) to move forward. Moving and synchronously releasing the locked state of the first shaft cover (70), at which time the protruding shaft (61) remains stationary, the armrest seat (20), the first component (40) and the first shaft cover ( 70) rotating relative to the convex axis (61) to adjust the movement; wherein when the button (90) is released outward, the knob (94) of the button (90) will elastically move outward to reset, The third tooth row (95) of the button (90) is reset and toothed to the fourth tooth row (461) of the first member (40), and the first connecting sliding portion (93) of the button (90) is synchronized. The control member (100) is elastically moved outwardly to reset, and the locking member (110) is reset and the first shaft cover (70) and the first member (40) are locked, so that the armrest (1) is restored. Forming a fixed positioning state; wherein the inner end of the control member (100) is further provided with a second flat portion (102), and the front side of the second flat portion (102) is sequentially provided with a first chute from the inside to the outside. (103), a first protrusion (104), a second Grooves (105) and a second projection (106). The button structure as claimed in claim 1, wherein the first connecting sliding portion (93) of the button (90) is further extended toward the first slider (93a) before being raised upward; wherein the control member (100) The second connecting sliding portion (101) is further disposed to the second sliding slot (101a) before being opened downward; wherein the first sliding strip (93a) is sleeved back and forth in the second sliding slot (101a) on. The button structure as claimed in claim 1, wherein the first connecting sliding portion (93) of the button (90) is further connected to the first sliding slot (93b) before the opening downward; wherein the control member (100) The second connecting sliding portion (101) is further extended upwardly to the second sliding strip (101b); wherein the first sliding slot (93b) is sleeved on the second sliding strip (101b) in a forward and backward direction. The button structure of claim 1, wherein the locking member (110) is further provided with a second elastic member (112) elastically abutting against one of the first member (40) adjacent to the platform (47). a second groove (113) on the wall (48) and an opening upward is provided for the control member (100); wherein a side of the second groove (113) corresponds to the control member (100) A third protrusion (114), a third chute (116), a fourth protrusion (115) and a fourth chute (117) are arranged on the side and from the inside to the outside. The button structure of claim 4, wherein the third protrusion (114) and the fourth protrusion (115) can be synchronously slid into the first chute (103) of the control member (100) and the The second chute (105); wherein the third chute (116) and the fourth chute (117) can respectively supply the first protrusion (104) and the second protrusion of the control member (100) (106) Slide into it synchronously. The button structure of claim 5, wherein when the control member (100) moves inward, the third protrusion (114) and the fourth protrusion (115) are synchronously controlled by the control member (100) The first protrusion (104) and the second protrusion (106) are pressed.