TWI634858B - Handrail rotation positioning device - Google Patents

Abstract

The armrest rotation positioning device of the invention comprises a positioning member, a base, a sliding member and a stopping member, wherein the positioning member comprises a plurality of first locking grooves arranged along a circumferential direction of the positioning member, and the base is selectively rotatable relative to the positioning member And a rotating slot, a sliding slot and a connecting slot respectively communicating the rotating slot and the sliding slot, the rotating slot rotatably receiving the positioning component, the sliding component is slidably disposed in the sliding slot and can be changed between the locking position and the releasing position The sliding member includes a side surface and a recessed groove disposed on the side surface, and the stopping member is movably disposed in the communication groove and selectively latched in one of the plurality of first latching slots or received therein The groove, thereby achieving a rotational positioning function between the positioning member and the base.

Description

Handrail rotation positioning device

The invention mainly discloses a positioning device, in particular to an armrest rotation positioning device.

The general seat armrest and the armrest bracket are mostly fixed, which causes inconvenience and discomfort to the user during the ride, that is, it is not ergonomic. The general office chair usually only has the height adjustment device between the armrest and the armrest bracket. Although it can fit the user's body shape as much as possible, it still cannot help relieve the hand fatigue.

Therefore, some seats can rotatably connect the armrest to the armrest bracket, so that the armrest and the armrest can have an angular rotation adjustment function, but according to the usage habits of the general user, it is desirable to be able to be positioned after the armrest angle is adjusted. Use, but the angle rotation adjustment function of the above-mentioned handrail can make the armrest freely rotate and adjust relative to the armrest bracket, but there is no fixing or positioning mechanism, so that the armrest is easily biased slightly and then rotated relative to the armrest bracket, which cannot be used. User needs.

In view of the above problems of the prior art, which cannot be effectively solved and overcome, the present applicant has filed this patent application to solve the aforementioned problems.

The technical problem to be solved by the handrail rotary positioning device of the present invention is that the conventional seat armrest is easily biased by a slight force, that is, relative to the armrest bracket.

Accordingly, the present invention provides a handrail rotation positioning device that includes a positioning member, a base, a slide member, and a stopper.

The positioning member is adapted to be connected to the armrest bracket, the positioning member has a first side and a second side opposite to the first side, and the positioning member comprises a plurality of first side disposed along the circumferential direction of the positioning member. a first latching slot; the base is selectively rotatable relative to the positioning member, the base includes a rotating slot, a sliding slot, and a communication slot respectively communicating the rotating slot and the sliding slot, the rotating slot is rotatable The sliding member is slidably disposed on the sliding slot of the base and is switchable between a locking position and a releasing position, the sliding member including a side surface and a recessed surface The stopping member is movably disposed in the communication groove of the base, and the stopping member is selectively clamped to one of the first plurality of first latching slots of the positioning member or It is placed in the receiving groove of the sliding member.

When the sliding member is in the locking position, the stopping member is engaged with one of the plurality of first latching slots of the positioning member, and the stopping member abuts against the side of the sliding member. The base cannot rotate relative to the positioning member; when the sliding member is in the releasing position, the stopping member moves relative to the communication groove of the base to be separated from a first card of the plurality of first latching slots of the positioning member The retaining groove is received in the receiving groove of the sliding member, and the base is rotatable relative to the positioning member. Thereby, the rotational positioning function between the positioning member and the base is achieved.

Other objects, advantages and novel features of the invention will become apparent from the description and appended claims.

10‧‧‧ Positioning parts

11‧‧‧ first side

12‧‧‧ second side

13‧‧‧First card slot

14‧‧‧Card Department

20‧‧‧ Pedestal

21‧‧‧Rotating trough

22‧‧‧Chute

221‧‧‧First Connection

23‧‧‧Connecting slot

24‧‧‧ Guide block

25‧‧‧Second card slot

30‧‧‧Slipper

31‧‧‧ side

32‧‧‧ accommodating slots

33‧‧‧ Near end

34‧‧‧ distal

341‧‧‧Second connection

35‧‧‧Guide

36‧‧‧ Positioning block

40‧‧‧stops

50‧‧‧Flexible parts

60‧‧‧ Lower case

61‧‧‧Perforation

62‧‧‧ button

70‧‧‧Upper casing

71‧‧‧ positioning slot

D32‧‧ depth

D40‧‧‧ outside diameter

Figure 1 is a perspective view of the armrest rotation positioning device of the present invention.

2 is an exploded perspective view of the armrest rotation positioning device of the present invention.

Figure 3 is a cross-sectional view showing the armrest rotation positioning device of the present invention.

4 to 8 are schematic views showing the operation of the armrest rotation positioning device of the present invention.

The technology, means and functions of the present invention are described in detail with reference to the accompanying drawings.

1 to 8, the armrest rotation positioning device of the present invention comprises a positioning member 10, a base 20 that is selectively rotatable relative to the positioning member 10, a sliding member 30 slidably disposed on the base 20, and a a stopper 40 movably disposed on the base 20, an elastic member 50 disposed between the base 20 and the sliding member 30, a lower case 60 for placing the base 20, and a detachably connected lower case The upper housing 70 of the body 60.

The positioning member 10 is adapted to be coupled to an armrest bracket (not shown). The positioning member 10 has a first side 11, a second side 12 opposite to the first side 11, a plurality of first latching slots 13 and a cassette. Part 14. A plurality of first latching slots 13 are disposed on the first side 11 along the circumferential direction of the positioning member 10, and a plurality of first latching slots 13 can be integrally formed on the first side 11 and in the plurality of first latching slots 13 An angle between a first card slot 13 and its adjacent first card slot 13 in the circumferential direction of the positioning member 10 is less than 60 degrees. The angle between the first card slot 13 and the adjacent first card slot 13 of the plurality of first card slots 13 can also be less than 45 degrees, less than 30 degrees, etc. according to requirements, and is not limited. At 60 degrees.

The latch portion 14 protrudes from the second side 12 in the radial direction of the positioning member 10, and the latch portion 14 can be integrally formed on the second side 12.

The base 20 includes a rotary groove 21, a sliding slot 22, a communication slot 23, a guide block 24, and a plurality of second latching slots 25. The rotary groove 21 rotatably accommodates the positioning member 10. The sliding groove 22 slidably receives the sliding member 30. The inner wall surface of the sliding groove 22 has a first connecting portion 221 protruding in the width direction. The communication groove 23 is located between the rotation groove 21 and the chute 22 and communicates with the rotation groove 21 and the chute 22, respectively, so that the rotation groove 21 and the chute 22 communicate with each other in the longitudinal direction. The guide block 24 is protruded from the bottom surface of the chute 22 in the height direction and extends in the width direction. A plurality of second latching grooves 25 are provided on the inner wall surface of the rotary groove 21 in the circumferential direction of the rotary groove 21 and correspond to the latching portion 14 of the positioning member 10, so that the latching portion 14 of the positioning member 10 is selectively engaged in the number One of the second latching slots 25 is a second latching slot 25.

The glide member 30 is slidably disposed in the width direction of the chute 22 of the base 20 and is switchable between a locked position and a released position. The slide member 30 includes a side surface 31, a receiving groove 32, a proximal end 33, a distal end 34 opposite the proximal end 33, a guide groove 35, and a plurality of positioning blocks 36. The side surface 31 can face the communication groove 23 of the susceptor 20. The accommodating groove 32 is recessed in the longitudinal direction on the side surface 31 and extends in the width direction, and the accommodating groove 32 can face the communication groove 23 of the susceptor 20, and the accommodating groove 32 has a depth D32 with respect to the side surface 31 in the longitudinal direction. The end surface of the distal end 34 is provided with a second connecting portion 341 in the width direction. The guiding groove 35 is formed on the bottom surface of the sliding member 30 and extends from the proximal end 33 to the distal end 34 in the width direction, and the guiding groove 35 does not penetrate the top surface of the sliding member 30, and the guiding groove 35 can slide in the width direction. The guide block 24 of the base 20 is placed. A plurality of positioning blocks 36 are protruded from the top surface of the slider 30 in the height direction and are linearly arranged at equal intervals in the longitudinal direction.

The stopper 40 is movably disposed in the longitudinal direction of the communication groove 23 of the base 20 and is selectively latched to one of the plurality of first latching slots 13 of the positioning member 10 or the first latching slot 13 The retaining groove 32 of the sliding member 30 can be cylindrical and has an outer diameter D40. The outer diameter D40 of the retaining member 40 is greater than the depth D32 of the receiving groove 32 of the sliding member 30.

The elastic member 50 is disposed between the inner wall surface of the sliding slot 22 and the distal end 34 of the sliding member 30, and opposite ends of the elastic member 50 are respectively connected to the first connecting portion 221 of the sliding slot 22 and the second end of the distal end 34. Connection portion 341.

The lower housing 60 includes a through hole 61 and a button 62. The perforation 61 communicates with the rotation groove 21 of the base 20 such that the positioning member 10 can be inserted through the perforation 61 to extend out of the lower housing 60 to be adapted to connect the armrest bracket. The button 62 is slidably disposed in the lower housing 60 in the width direction and abuts against the proximal end 33 of the sliding member 30.

The upper housing 70 is detachably coupled to the lower housing 60 in a screwed manner, and the base 20 is disposed between the lower housing 60 and the upper housing 70 such that the base 20, the lower housing 60, and the upper housing 70 It is possible to form an armrest unit capable of supporting the user's arm. The upper housing 70 includes a plurality of positioning slots 71 that correspond to the plurality of positioning blocks 36 of the slide member 30 and are selectively latched to each other. The top surface of the upper casing 70 can cover the soft material.

As shown in FIG. 4, when the sliding member 30 is in the locking position, the stopper 40 is located in the communication groove 23 of the base 20 and is engaged with one of the plurality of first latching slots 13 of the positioning member 10. The groove 13 and the stopper 40 abut against the side surface 31 of the sliding member 30. The latching portion 14 of the positioning member 10 is latched on one of the plurality of second latching grooves 25, and is slipped. The plurality of positioning blocks 36 of the member 30 are respectively latched on the plurality of positioning slots 71 of the upper housing 70, so that the base 20 cannot be rotated relative to the positioning member 10, thereby preventing the upper housing 70 from being slightly applied, that is, the relative positioning member. 10 rotation shift.

As shown in FIG. 5, the user can press the button 62, and the button 62 slides in the width direction relative to the lower housing 60 and simultaneously pushes against the proximal end 33 of the slide member 30 such that the slide member 30 is opposite to the base 20 in the width direction. The sliding groove 22 is moved to change from the locking position to the releasing position, and the distal end 34 of the sliding member 30 is pressed against the elastic member 50, so that the elastic member 50 is compressed on the inner wall surface of the sliding groove 22 and the distal end of the sliding member 30. Between 34.

The plurality of positioning blocks 36 of the sliding member 30 are respectively separated from the plurality of positioning grooves 71 of the upper casing 70, the stopper 40 does not abut against the side surface 31 of the sliding member 30, and the stopper 40 faces and does not abut The groove surface of the groove 32 is accommodated. Referring to FIG. 6 , since the stopper 40 has not been restricted by the side surface 31 , the user can apply the force to the armrest unit to rotate the base 20 relative to the positioning member 10 , and the stopper 40 is longitudinally opposite to the base 20 . The communication groove 23 moves away from one of the first plurality of first latching slots 13 of the positioning member 10, and the stopper 40 enters and is received in the receiving groove 32 of the sliding member 30.

As shown in FIG. 7, the base 20 is rotatable relative to the positioning member 10. The stopper 40 is aligned with the other one of the plurality of first latching slots 13 of the positioning member 10, and the latching portion 14 of the positioning member 10 is aligned with the other of the plurality of second latching slots 25. A second card slot 25. As shown in FIG. 8, when the user stops pressing the button 62, the elastic restoring force of the elastic member 50 is applied to the distal end 34 of the sliding member 30, so that the sliding member 30 moves in the width direction relative to the chute 22 of the base 20. The release position automatically returns to the locked position. The groove surface of the accommodating groove 32 is pushed against the stopper 40, so that the stopper 40 is locked to the other first latching groove 13, and the latching portion 14 is locked to the other second latching groove 25, thereby The angle between the base 20 and the positioning member 10 is adjusted.

The above is only the preferred embodiment of the present invention, and the scope of the present invention is not limited thereto, so that the numerical values are changed or the equivalent elements are replaced, or the equivalent changes are made according to the scope of the present invention. Modifications are still within the scope of the invention patent.

Claims (9)

An armrest rotation positioning device comprising: a positioning member adapted to connect an armrest bracket, the positioning member having a first side and a second side opposite to the first side, the positioning member comprising a plurality of positions along the positioning a circumferential direction of the first latching groove disposed on the first side; a base rotatably selectively rotatable relative to the positioning member, the base comprising a rotating slot, a sliding slot and a respective communicating slot a traversing groove of the sliding groove, the rotating groove rotatably receiving the positioning member; a sliding member slidably disposed on the sliding groove of the base and capable of changing between a locking position and a releasing position, The sliding member includes a side surface and a receiving groove recessed in the side surface, the receiving groove has a depth with respect to the side surface; and a stopper movably disposed in the communication groove of the base, the sliding member The stopper has an outer diameter greater than the depth, and the stopper is selectively latched to one of the plurality of first latching slots of the positioning member or received therein Slotting groove of the slipper; when the slip In the locked position, the stopper is clamped to one of the plurality of first latching slots of the positioning member, the stopper abuts the side of the sliding member, and the base cannot be opposite The positioning member rotates; when the sliding member is in the releasing position, the stopping member moves relative to the communication groove of the base to be separated from one of the plurality of first latching slots of the positioning member, the The movable member is accommodated in the accommodating groove of the sliding member, and the base is rotatable relative to the positioning member. The armrest rotation positioning device according to claim 1, wherein an angle between a first one of the plurality of first latching grooves and an adjacent first latching groove is spaced along a circumferential direction of the positioning member Less than 60 degrees. The armrest rotation positioning device of claim 1, wherein the sliding member has a proximal end and a distal end opposite to the proximal end; the armrest rotation positioning device further comprises: an elastic member disposed on the chute Between the inner wall surface and the distal end of the sliding member; when the sliding member is in the release position, the distal end of the sliding member is pressed against the elastic member. The armrest rotation positioning device of claim 3, wherein the inner wall surface of the sliding slot protrudes from a first connecting portion, and the distal end of the sliding member has a second connecting portion, and opposite ends of the elastic member are respectively connected And the first connecting portion and the second connecting portion. The armrest rotation positioning device of claim 3, wherein the base comprises a guide block protruding from a bottom surface of the sliding slot, the sliding member comprising a guide groove extending from the proximal end to the distal end, the guide The slot slidably receives the guide block. The handrail rotation positioning device of claim 5, wherein the guide groove of the sliding member is formed on a bottom surface of the sliding member and does not penetrate the top surface of the sliding member. The armrest rotation positioning device according to any one of claims 1 to 6, wherein the positioning member includes a latch portion protruding in a radial direction of the positioning member on the second side, the base comprising a plurality of settings The second latching groove of the inner wall of the rotating slot, the latching portion of the positioning member is selectively latched to a second latching slot of the plurality of second latching slots of the base. The handrail rotation positioning device of claim 3, further comprising a lower casing, the lower casing comprising a through hole communicating with the rotation groove and a button slidably disposed on the lower casing, the positioning member passing through the through hole The lower housing is adapted to be attached to the armrest bracket, the button abutting the proximal end of the sliding member. The armrest rotation positioning device of claim 8, further comprising an upper casing detachably coupled to the lower casing, the base being disposed between the lower casing and the upper casing, the slip The housing includes a plurality of positioning blocks protruding from the top surface of the sliding member, the upper housing includes a plurality of positioning slots, the plurality of positioning slots corresponding to the plurality of positioning blocks and selectively latching each other; When the sliding member is in the locking position, the plurality of positioning blocks of the sliding member are respectively engaged with the plurality of positioning slots of the upper housing; and when the sliding member is in the releasing position, the positioning blocks of the sliding member are Separate from the plurality of positioning slots of the upper housing.