TWM552305U - Installation and adjustment device for bottom frame of chair handle - Google Patents

Description

Installation and adjustment device for chair armrest chassis

The present invention relates to a mounting and adjusting device for a chair armrest chassis, especially a type that can be stably locked when not adjusted, and can be quickly operated to form an unlocked state during adjustment to be moved to the left or right to adjust the armrest. position.

For users who have been sitting for a long time and need to do paperwork, the ergonomic effect of the chair armrest is more important than the appearance, because the comfort of the chair armrest directly affects the user's physical and mental state, which in turn affects Work efficiency.

In order to increase the ergonomic effect of the armrest of the chair, the operator adds a height adjustment function to the armrest of the chair, and the operator adds a function of adjusting the position of the armrest of the chair relative to the seat at the bottom of the armrest of the chair. , that is, the width between the left and right handrails.

However, although the armrests of the chair armrests have been installed and adjusted, the installation of the armrests of the conventional chair and the undercarriage adjustment device have the following problems:

First, the overall height of the side is limited, so that the type of chair that can be matched is limited, which causes the production of the product at the manufacturing end to be bothered and affects the sales interest of the product.

2. The following is a mounting and adjusting mechanism for a chair armrest of a conventional chair. The conventional adjusting mechanism generally comprises a first ratchet member (32), a second ratchet member (33) and a locking member (35). Such as a screw, when the fastener (35) is to be locked to the bottom surface of the seat body (2) by passing the second ratchet member (33) and the first ratchet member (32) It is not easy to control the locking tightness of the locking member (35) in the assembly work, because if the locking is too tight, the user (especially the old weak woman) does not easily operate the second ratchet member (33) to Rotating the first ratchet member (32) for changing the coupling position of the two annular ratchets (324, 334); and if the locking is not tight, the bottom of the chair armrest (3) is horizontal The support can not be firmly locked on the underside of the chair seat body (2) before or after adjustment, which causes the armrest (3) of the chair to be unstable or easy to loose during use, which greatly affects the armrest of the chair. (3) The use efficiency, reliability and user's desire to purchase are not conducive to the installation, mass production and market competition of the armrest (3).

Third, there are also manufacturing ends that use springs as the locking mechanism of the adjusting mechanism. However, the spring is prone to fatigue and slack due to moisture, rust, rust, or repeated use, thereby reducing the life of the product and relatively reducing the user's purchase rate.

Therefore, the installation and adjustment device for the chair armrest of the chair type and the ease of operation are provided, and the position of the armrest of the chair is adjusted to increase the support effect against the hand of the human body, which is a main problem solved by the present invention. The new type provides the most effective and profitable solution to the above problems.

The main purpose of the present invention is to provide a mounting and adjusting device for a chair armrest frame, which is fixed on the left and right sides of a bottom surface of a seat, and comprises: a fixing member is a rectangular piece body, and at least one is provided The locking hole is fixed on the bottom surface of the seat by using a locking fastener, and a first sliding groove is formed at the bottom of the seat; a sliding member is connected to a chair armrest at one end, and the opposite end is slidably disposed at the same In the first chute of the fixing member, the sliding member is provided with a left-right direction The second sliding slot; and an unlocking and locking adjustment mechanism are installed between the fixing member and the sliding member and slidably disposed in the second sliding slot of the sliding member, so that the sliding member can be unlocked Adjusting the position relative to the fixing member and re-locking the positioning; wherein when the unlocking and locking adjustment mechanism is in the unlocked state, the sliding member can move the adjustment position to the left and right relative to the fixing member; wherein the unlocking and locking When the adjusting mechanism is in the locked state, the sliding member can be locked in an adjusted position relative to the fixing member, so as to facilitate the operation of assembling more chair types and adjusting the mechanism to unlock or lock.

1‧‧‧Installation and adjustment devices

10‧‧‧Fixed parts

11‧‧‧Lock hole

12‧‧‧First chute

13‧‧‧Fixed convex

14‧‧‧Positioning holes

20‧‧‧Sliding parts

21‧‧‧Second chute

22‧‧‧Long stepped hole

30‧‧‧Unlocking and locking adjustment mechanism

31‧‧‧Wisher parts

311‧‧‧ center hole

312‧‧‧ first first side

313‧‧‧ first and second side

32‧‧‧First ratchet

321‧‧‧Second center hole

322‧‧‧ second first side

323‧‧‧ second second side

324‧‧‧First annular ratchet

325‧‧‧First ratchet

326‧‧‧ first low

327‧‧‧ first high

328‧‧‧First slope

33‧‧‧Second ratchet

331‧‧‧ third central hole

332‧‧‧ third first side

333‧‧‧ third second side

334‧‧‧Second ring ratchet

335‧‧‧Second ratchet

336‧‧‧ second low

337‧‧‧ second high

338‧‧‧second slope

339‧‧‧Handle

34‧‧‧T type casing parts

341‧‧‧ fourth central hole

342‧‧‧ first end

343‧‧‧second end face

35‧‧‧Locker

2‧‧‧ seat

3‧‧‧ Chair armrest

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

2 is a perspective exploded view of the schematic view 1.

Figure 3 is a schematic view of another angle (back view) of Figure 2.

4 is a perspective exploded view of a portion of FIG. 1.

Figure 5 is a perspective exploded view of another portion of Figure 1.

Figure 6 is a schematic illustration of the embodiment of Figure 1 in an unlocked state.

Figure 7 is a side cross-sectional view of the mounting and adjusting device of the present invention of Figure 6.

Figure 8 is a schematic view of the embodiment of Figure 1 in a locked state.

Figure 9 is a side cross-sectional view of the mounting and adjusting device of the present invention of Figure 8.

The structure and technical features of the present invention are described in detail with reference to the drawings, wherein the drawings are only used to illustrate the structural relationship and related functions of the present invention, and therefore the dimensions of the components are not set according to actual ratios and are not intended to be limited. This new type.

Referring to Figures 1 to 9, the main purpose of the present invention is to provide a mounting and adjusting device 1 for a chair armrest, which is fixed on the left and right sides of a bottom surface of a seat 2, and includes a fixing member 10 and a sliding member. The component 20 and an adjustment mechanism 30 for unlocking and locking.

The fixing member 10 is a rectangular piece body, and is provided with at least one locking hole 11 for fixing on the bottom surface of the seat 2 by using a locking member, and a bottom portion is formed at the bottom thereof (as shown by the X-axis in FIG. 2). The first chute 12 is shown; wherein the fixing member 10 is further made of an iron plate but is not limited to increase the durability of the member.

One end of the sliding member 20 is connected to a chair armrest 3, and the opposite end of the sliding member 20 is slidably disposed in the first sliding slot 12 of the fixing member 10. The sliding member 20 is provided with a left-right direction (such as X in FIG. 2). The second chute 21 is shown in the axial direction.

The unlocking and locking adjustment mechanism 30 is mounted between the fixing member 10 and the sliding member 20 and slidably disposed in the second sliding slot 21 of the sliding member 20, so that the sliding member 20 is unlocked. The adjustment position can be moved relative to the fixing member 10 and the positioning can be locked again.

As shown in FIGS. 6 and 7, when the unlocking and locking adjustment mechanism 30 is in the unlocked state, the slider 20 can be moved relative to the fixing member 10 in the left-right direction (as shown by the arrow A direction in FIG. 6). For the user to adjust the optimum position of one of the chair armrests 3.

As shown in FIG. 8 and FIG. 9 , when the unlocking and locking adjustment mechanism 30 is in the locked state, the sliding member 20 can be locked in an adjusted position relative to the fixing member 10 for the user to adjust the chair armrest. 3 can be fixed and provide support after an optimal position.

The at least one locking hole 11 of the fixing member 10 further protrudes from the bottom of the fixing member 10 to form a fixing protrusion 13 on the surface of the fixing member 10. However, the fixing protrusion 13 has a space for locking. The firmware is placed and easy to lock.

The fixing member 10 is further provided with a positioning hole 14, but is not limited; wherein the second sliding slot 21 of the sliding member 20 is further provided with a left-right direction (shown in the X-axis direction in FIG. 2) and the fixing member 10 The elongated stepped hole 22 communicates with the positioning hole 14 but is not limited; wherein the quick unlocking and locking adjustment mechanism 30 is further provided with a washer member 31, a first ratchet member 32, a second ratchet member 33, and a T The sleeve member 34 and a lock 35 are not limited.

The washer member 31 has a first central hole 311 and a first first surface 312 and an opposite first second surface 313, wherein the first first surface 312 is attached to the second sliding portion of the sliding member 20 On the bottom surface of the groove 21.

The first ratchet member 32 has a second central hole 321 and a second first surface 322 and an opposite second second surface 323. The second first surface 322 is attached to the washer member 31. The first second surface 313 is provided with a first annular ratchet 324, and the first annular ratchet 324 includes at least one annularly arranged first ratchet surface 325. A ratchet surface 325 includes a first low level 326, a first high level 327, and a first ramp 328 extending from the first low level 326 to the first high level 328.

The second ratchet member 33 has a third central hole 331 and a third first surface 332 and an opposite third second surface 333, as shown in FIGS. 7 and 9, wherein the third first surface 332 is A second annular ratchet 334 is disposed to correspond to the first annular ratchet 324 disposed on the second second surface 323 of the first ratchet member 32. The second annular ratchet 334 includes at least one ring. Arranging the second ratchet surface 335, each of the second ratchet surfaces 335 includes a second low position 336, a second high position 337, and a second slope 338 extending from the second low position 336 to the second high position 337 for Forming a one-to-one correspondence relationship with each of the first ratchet surfaces 325 of the first ratchet member 32, wherein the second lower position 336 of each of the second ratchet surfaces 335 of the second ratchet member 33 is correspondingly coupled thereto Each of the first ratchet surfaces 325 in the first ratchet member 32 When the first high position 327 is formed, a low coupling state is formed as shown in FIG. 7; wherein when the second high position 337 of each second ratchet surface 335 of the second ratchet member 33 is rotated to be correspondingly coupled to the first spine When the first high position 327 of each of the first ratchet surfaces 325 of the tooth member 32 is formed, a high coupling state is formed as shown in FIG.

The T-shaped sleeve member 34 has a fourth central hole 341 and a first end surface 342 and an opposite second end surface 343. As shown in FIGS. 7 and 9, the T-shaped sleeve member 34 is sleeved on the second ratchet member 33 and the same. The second center hole 331 of the first ratchet member 32 is disposed such that the first end surface 342 can abut against the first second surface 313 of the washer member 31, wherein the second end surface 343 is disposed on the T-shaped convex portion thereof. The inner surface of the edge is in contact with the third second surface 333 of the second ratchet member 33.

The locking member 35 is axially passed through the fourth central hole 341 of the T-shaped sleeve member 34, the first central hole 311 of the washer member 31, and the inner bottom surface of the second sliding slot 21 of the sliding member 20. The elongated stepped hole 22 is re-locked on the positioning hole 14 of the fixing member 10, so that the locking member 35 can be kept positioned relative to the fixing member 10, and the T-shaped sleeve member 34, The second ratchet member 33, the first ratchet member 32 and the washer member 31 are integrally integrated, wherein the second ratchet member 33 and the first ratchet member 31 are sandwiched between the T-shaped sleeve member. Between the second end face 343 of the 34 and the first second face 313 of the washer member 31, and the first annular ratchet 324 and the second annular ratchet 334 corresponding thereto are maintained in a coupled state without being separated .

Wherein the second ratchet member 33 can be operated to rotate an angle relative to the first ratchet member 32 (shown in the direction of arrow B of FIG. 6) or reverse (shown in the direction of arrow C of FIG. 8). So that the corresponding first annular ratchet 324 and the second annular ratchet 334 can be converted from a low coupling state to a high coupling state (as shown in FIG. 9) or from a high coupling state to a low position. Coupling state (as shown in Figure 7); as shown in Figures 7, 9, wherein the second ratchet member 33 is operated When the first ratchet member 32 is transformed into a low coupling state (as shown in FIG. 7) from a high coupling state (shown in FIG. 9), the first first surface 312 of the washer member 31 is not Pressing on the inner bottom surface of the second sliding slot 21 of the sliding member 20, the washer member 31 and the sliding member 20 form an unlocked state and can slide relative to each other, and the sliding member 20 can move relative to the fixing member 10. Adjusting the position; as shown in Figures 7 and 9, wherein when the second ratchet member 33 is operatively rotated to be coupled to the first ratchet member 32 from a low coupling state (shown in Figure 7) to a high coupling In the state (as shown in FIG. 9 ), the first first surface 312 of the washer member 31 is pressed against the inner bottom surface of the second sliding slot 21 of the sliding member 20 , and the washer member 31 and the sliding member 20 are The position is formed in a locked state, and the slider 20 cannot move the adjustment position relative to the fixing member 10.

The second ratchet member 33 further extends outwardly to provide a handle 339 for operating the second ratchet member 33 for forward direction (as indicated by arrow B in FIG. 6) or opposite to the first ratchet member 32. The rotation (as shown by the direction of the arrow C in FIG. 8), but not limited, facilitates the user's convenience in locking or unlocking the adjustment device 1.

The mounting and adjusting device 1 of the present invention has the following advantages as compared with other prior art:

(1) The fixing member 10 of the present invention is a one-piece body, so that the overall side height is lowered, thereby increasing the type of the chair that can be fitted with the mounting and adjusting device 1, so that the production opportunity of the manufacturing end is increased and the profit source is increased. .

(2) The present invention uses the lock member 35 to firmly lock the T-shaped sleeve member 34, the second ratchet member 33, the first ratchet member 32 and the washer member 31 into one body and is easily mounted on the lock member 35. Between the sliding member 20 and a fixing member 10, not only the assembly work is facilitated, but also the problems and shortcomings of the prior art that are difficult to control the locking tightness of the locking member during assembly are avoided, and the use is facilitated. Efficiency, reliability and user's desire to purchase.

(3) The unlocking and locking adjustment mechanism 30 of the present invention effectively solves the problem that the spring used for the conventional fastener is susceptible to fatigue and stagnation due to climatic moisture rust or repeated use, thereby increasing the life of the product.

The above description is only a preferred embodiment of the present invention, and is intended to be illustrative, and not restrictive; it will be understood by those of ordinary skill in the art Many changes, modifications, and even equivalent changes are made, but they fall within the scope of this new type of protection.

1‧‧‧Installation and adjustment devices

10‧‧‧Fixed parts

11‧‧‧Lock hole

12‧‧‧First chute

14‧‧‧Positioning holes

20‧‧‧Sliding parts

21‧‧‧Second chute

22‧‧‧Long stepped hole

30‧‧‧Unlocking and locking adjustment mechanism

31‧‧‧Wisher parts

32‧‧‧First ratchet

33‧‧‧Second ratchet

339‧‧‧Handle

34‧‧‧T type casing parts

35‧‧‧Locker

2‧‧‧ seat

3‧‧‧ Chair armrest

Claims (10)

The installation and adjustment device for the armrest frame of the chair is fixed on the left and right sides of the bottom surface of a seat, and comprises: a fixing member, which is a rectangular piece body, and is provided with at least one locking hole for use The lock body is fixed on the bottom surface of the seat, and a first chute is formed at the bottom of the seat; a sliding member has one end connected to the armrest of the chair, and the opposite end is slidably disposed on the fixing member. In the first sliding slot, the sliding member is provided with a left and right second sliding slot; and an unlocking and locking adjusting mechanism is mounted between the fixing member and the sliding member and slidably disposed thereon In the second sliding slot of the sliding member, the sliding member can be moved relative to the fixing member to adjust the position and then locked and locked after being unlocked; wherein, when the unlocking and locking adjustment mechanism is in the unlocked state, the sliding The piece can be moved to the left and right position relative to the fixing member; wherein when the unlocking and locking adjustment mechanism is in the locked state, the sliding member can be locked in an adjusted position relative to the fixing member. The mounting and adjusting device of claim 1, wherein the at least one locking hole of the fixing member further protrudes from the bottom to the surface of the fixing member to form a fixing convex portion. The mounting and adjusting device of claim 1, wherein the fixing member is further provided with a positioning hole; wherein the second sliding slot of the sliding member is further provided with an elongated stepped hole that communicates with the positioning hole of the fixing member. The quick unlocking and locking adjustment mechanism is further provided with a washer member, a first ratchet member, a second ratchet member, a T-shaped sleeve member and a locking member. The mounting and adjusting device of claim 3, wherein the washer member has a first central hole and a first first surface and an opposite first second surface, wherein the first first surface is attached to The slip The bottom surface of the second chute of the moving member. The mounting and adjusting device of claim 3, wherein the first ratchet member has a second central hole and a second first surface and an opposite second second surface, wherein the second first surface is Attached to the first second surface of the washer member, the second second surface is provided with a first annular ratchet, and the first annular ratchet includes at least one annular arrangement of the first ratchet surface. Each of the first ratchet surfaces includes a first low position, a first high position, and a first slope extending from the first low position to the first high position. The mounting and adjusting device of claim 3, wherein the second ratchet member has a third central hole and a third first surface and an opposite third second surface, wherein the third first surface a second annular ratchet corresponding to the first annular ratchet disposed on the second second surface of the first ratchet member, the second annular ratchet comprising at least one annularly arranged second spine a second surface of each of the first ratchet members The tooth surfaces are formed in a one-to-one correspondence relationship, wherein when the second lower position of each of the second ratchet surfaces of the second ratchet member is correspondingly coupled to the first high position of each of the first ratchet surfaces of the first ratchet member Forming a low coupling state; wherein when the second high position of each of the second ratchet surfaces of the second ratchet member is rotated to be correspondingly coupled to the first high position of each of the first ratchet surfaces of the first ratchet member That is, a high coupling state is formed. The mounting and adjusting device of claim 3, wherein the T-shaped sleeve member has a fourth central hole and a first end surface and an opposite second end surface, and the second ratchet member is sleeved on the second ratchet member a second central hole of the first ratchet member and having a first end surface thereof that can abut against the first second surface of the washer member, wherein the second end surface is disposed on the inner surface of the T-shaped flange and is in contact with On the third second side of the second ratchet member. The mounting and adjusting device of claim 3, wherein the locking member is axially passed through the T in sequence The fourth central hole of the sleeve member, the first central hole of the washer member and the elongated stepped hole provided on the inner bottom surface of the second sliding slot of the sliding member are then locked on the positioning hole of the fixing member, The positioning of the fastener relative to the fixing member does not move, and the T-shaped sleeve member, the second ratchet member, the first ratchet member and the washer member are integrally integrated, wherein the second spine is integrated The tooth member and the first ratchet member are interposed between the second end surface of the T-shaped sleeve member and the first second surface of the washer member and the first annular ratchet corresponding thereto And the second annular ratchet remains in the coupled state without being separated. The mounting and adjusting device of any one of claims 3 to 8, wherein the second ratchet member is operable to rotate an angle relative to the first ratchet member in a forward or reverse direction to enable a corresponding a coupling state between the first annular ratchet and the second annular ratchet that can be converted from a low-position coupled state to a high-position coupled state or from a high-position coupled state to a low-position coupled state; wherein the second ratchet member is operated to rotate The first first face of the washer member is not forced on the inner bottom surface of the second chute of the slider when the first ratchet member is converted from the high coupling state to the low coupling state. The member and the sliding member form an unlocked state to be relatively slidable, and the sliding member is movable relative to the fixing member to adjust the position; wherein when the second ratchet member is operatively rotated to be lower than the first ratchet member When the coupled state is changed to the high coupling state, the first first face of the washer member is pressed against the inner bottom surface of the second sliding groove of the sliding member, and the locking member forms a locking relationship with the sliding member. Positioned in the state, the slider can not be phased The fixing member to adjust the position of the mobile. The mounting and adjusting device of claim 9, wherein the second ratchet member further extends outwardly to provide a handle for operating the second ratchet member for forward or reverse rotation relative to the first ratchet member .