TWM588476U - Chair seat slide locking mechanism for chairs - Google Patents

Abstract

The present invention is a sliding lock mechanism for a seat of a seat. The base of the seat is provided with at least one rod body, and the locking mechanism includes a positioning tube and a sliding seat. The positioning tube sleeve is placed on the rod body and can correspond to the rod The body rotates and does not correspond to the axial displacement of the rod body, and a positioning part is provided on the positioning tube; and the sliding seat has a joint part on the side of the seat and the seat side, and the joint part has a sleeve part on the side, the sleeve part A sleeve hole that can fit the positioning tube is provided, and the sleeve hole is provided with a locking part, and the positioning tube can be rotated so that the positioning part and the locking part are not engaged so that the sliding seat can be displaced along the positioning tube, and the positioning tube can be rotated to make the positioning part It is engaged with the locking part to lock the position of the sliding seat; by this way, the position of the seat can be locked, and the operation convenience and the stability of locking are better.

Description

Seat seat sliding lock mechanism

This creation relates to a sliding lock mechanism for a seat, mainly referring to a mechanism that can lock the position of the seat.

It is known that a leisure chair with adjustable seating and reclining is generally provided with a rod body on the base, and the rod body is sleeved with a locking mechanism that can be displaced on the rod body, and the locking mechanism is engaged with the seat to make the adjustable chair The seat is displaced and the locking mechanism can be displaced along the rod body, and after being displaced to a set position, the locking mechanism is fixed to the rod body to position the seat, and the seat back is generally linked to the seat back when the seat is displaced, making it adjustable It is generally used at the angle of riding or reclining.

However, the conventional locking mechanism is mostly fixed by the knob pressing the rod body, but the tightening method is inconvenient to operate and the positioning is not indeed missing when it is not tightened, and the adjustment process of the knob is loosened because the back of the chair with the reclining angle is loose. It is easy to cause the back of the chair to lean back to the maximum angle due to its gravity, resulting in the inconvenience of adjusting the angle.

In order to improve the above-mentioned deficiency, the locking device in the case of US7735925 mainly includes a clamping seat, a positioning block, an adjusting rod, and a combination mechanism. The clamping seat is linked with the seat, and a sleeve hole that can be sleeved with the seat rod body is provided, and It has a first and a second seat body that can be relatively expanded and clamped; the positioning block is arranged on the clamping seat, and the adjusting rod is combined and arranged on the side of the positioning block by a combination mechanism, and has a positioning part which is engaged with the positioning block, As a result, the adjustment rod can be pivoted to expand the first and second clip bodies, and the seat can drive the clamp seat to slide on the rod body, and when the slide is moved to the set position, the adjustment rod can be pivoted to make the first and second seat bodies The rod body can be clamped, and the positions of the clamp seat and the seat can be locked.

The aforementioned structure can make the first and second seats expand or the clamping rods are frictionally locked by pivoting the adjustment rod, which can have simple and convenient operation. However, the adjustment rod also corresponds to the displacement of the seat and the clamp Displacement causes the user's hand to not control the adjustment lever according to the habitual position, and if the holder moves to the front to form a lying position, the occupant may have to raise his hand to hold the adjustment lever adjusted to the front. Less inconvenient.

The purpose of this creation is to provide a structure that can lock the seat position and has better operation convenience and locking stability.

The seat base of this creation is provided with at least one rod body. The locking mechanism includes a positioning tube and a sliding seat. The positioning tube sleeve is placed on the rod body and can rotate corresponding to the rod body and does not correspond to the axial displacement of the rod body. A positioning part is provided on the positioning tube; and a joint part on one side of the sliding seat is combined with the side of the seat base. The joint part has a sleeve part on the side, and the sleeve part is provided with a sleeve which can fit the positioning tube The set of holes is provided with a locking part, and the positioning tube is rotated on the rod body so that the sliding seat can be displaced along the positioning tube when the positioning part and the locking part are not engaged, and the positioning tube can be rotated on the rod body to position The portion engages with the locking portion to lock the slide seat position.

Further, the positioning portion protrudes from the outside of the positioning tube and extends in the axial direction; and the sleeve hole of the sliding seat is provided with a concave portion at a position corresponding to the positioning portion of the positioning tube, and the locking portion is provided on the side of the corresponding concave portion in the sleeve hole position.

In this creation, the position of the seat can be adjusted by positioning the positioning part of the positioning tube in the recessed portion of the sliding seat, and the positioning tube can be rotated to frictionally engage and lock the positioning part and the locking part, which can be used for simple operation. The created chair seat can be pivotally connected to the chair back, and the chair back angle can be adjusted at the same time when the chair seat is displaced.

Further, the positioning portion of the positioning tube is provided with a first protruding tooth group along the axial direction, the first protruding tooth group has a number of first protruding teeth arranged consecutively, and the end direction of the first protruding tooth corresponds approximately to the axial direction of the positioning tube In the direction, the locking portion of the sliding seat has a second convex tooth set that can mesh with the first convex tooth set, and the second convex tooth set has a number of second convex teeth that can mesh with the first convex tooth.

Further, a radially protruding handle is provided outside the positioning tube.

This creation can control the handle to rotate the positioning tube, and when the positioning portion and the locking portion are engaged, the first convex tooth of the first convex tooth set and the second convex tooth of the second convex tooth set are engaged, which can be frictionally engaged It has better positioning and stabilization effect, and can surely lock the sliding seat, seat position and seat back angle effect.

In this creative adjustment, although the sliding base can be displaced, the handle is still in a fixed position, so the user can easily hold the handle according to operating habits, which can have convenient operation.

Please refer to Figures 1 to 3, the author has a base 1, a seat 2, a back 3, and a locking mechanism 4, the base 1 has two opposed upright support plates 11, and the two support plates 11 are provided with an armrest frame 12 And a rod body 13 is provided between the support plate 11 and the armrest frame 12; the seat back 3 is pivotally connected with the base 1 and the seat 2 and the seat back 3 can change the reclining angle corresponding to the displacement of the seat 2.

The locking mechanism 4 is disposed on at least one rod body 13 and includes a positioning tube 41 and a sliding seat 42. The positioning tube 41 is sleeved on the rod body 13 and can rotate corresponding to the rod body 13 and does not correspond to the axial direction of the rod body 13 Displacement, and a positioning portion 411 extending in the axial direction is protruded outside the positioning tube 41. The positioning portion 411 is provided with a first protruding tooth group 412 in the axial direction. The first protruding tooth group 412 is continuously arranged and has ends The direction approximately corresponds to the first convex tooth 413 of the positioning tube 41 in the axially perpendicular direction, and a radially protruding handle 414 is provided outside the positioning tube 41.

The sliding seat 42 has an engaging portion 421 on one side and the side of the seat 2 is linked and combined. The engaging portion 421 has a sleeve portion 422 on one side. The sleeve portion 422 is provided with a sleeve hole 423 that can fit the positioning tube 41. The sleeve hole 423 is provided with a concave portion 424 corresponding to the position of the positioning portion 411 of the positioning tube 41, and a locking portion 425 made of a better anti-slip material is provided on the side of the corresponding concave portion 424 in the sleeve hole 423. The locking portion 425 has a The second convex tooth group 426 meshing with the convex tooth group 412 has a plurality of second convex teeth 427 that can mesh with the first convex tooth group 412.

Please refer to FIGS. 3 and 4. In this creation, when the control handle 414 makes the positioning portion 411 of the positioning tube 41 correspond to the concave portion 424 of the sliding seat 42, the sliding seat 42 can be displaced axially along the positioning tube 41, and the position of the seat 2 can be freely adjusted and Backrest 3 reclines.

Please refer to FIGS. 4-6. After the adjustment, the handle 414 can be controlled to rotate the positioning tube 41 on the rod body 13 and the positioning portion 411 can deviate from the concave portion 424 of the sleeve hole 423 and engage with the locking portion 425, and the first The first protruding teeth 413 of the protruding teeth set 412 corresponding to the adjusted position of the sliding base 42 can be engaged with the second protruding teeth 427 of the second protruding teeth set 426, which can have better positioning and stability effect than the conventional friction engagement method, and It has the effect of locking the sliding seat 42, the position of the seat 2 and the angle of the seat back 3.

Although the sliding base 42 can be moved to different positions during this creative adjustment, the handle 414 is still in a fixed position, so the user can easily hold the handle 414 according to operating habits, and the handle 414 in this embodiment is located closer to the seat back 3 Therefore, when the seat back 3 is provided with a large reclining angle to provide the user with a reclining position, the length of the user's hand can still be held by the handle 414 for better convenience.

In addition, when the positioning tube is not provided with the first protruding tooth set; and the sliding seat is not provided with the second protruding tooth set, it can also be frictionally locked by the positioning part and the engaging part, and the structure can also have the handle position fixed easily Operational efficiency.

Therefore, as described above, this creation can have better locking stability and convenient operation. Although specific embodiments have been described, many modifications and changes are still possible without exceeding the scope of this creation technology. , The scope of this creation limits the scope of the attached patent application.

1‧‧‧Base 11‧‧‧Support plate 12‧‧‧arm rest 13‧‧‧Pole 2‧‧‧chair seat 3‧‧‧back 4‧‧‧Locking mechanism 41‧‧‧Positioning tube 411‧‧‧Positioning Department 412‧‧‧The first convex tooth group 413‧‧‧First convex tooth 414‧‧‧handle 42‧‧‧Sliding seat 421‧‧‧Joint 422‧‧‧Socket Department 423‧‧‧Sleeve 424‧‧‧recess 425‧‧‧Locking part 426‧‧‧Second convex tooth group 427‧‧‧Second convex tooth

Figure 1 is a sketch of the chair created in this book.

Figure 2 is an exploded view of the locking mechanism of this creation.

Figure 3 is a schematic diagram of the unlocked state of this creation.

Figure 4 is a schematic diagram of the adjustment of the seat position of the original creation.

Figure 5 is a schematic diagram of the locked state of this creation.

Figure 6 is a schematic diagram of the upper view of the locked state of this creation.

1‧‧‧Base

11‧‧‧Support plate

12‧‧‧arm rest

13‧‧‧Pole

2‧‧‧chair seat

3‧‧‧back

4‧‧‧Locking mechanism

41‧‧‧Positioning tube

414‧‧‧handle

42‧‧‧Sliding seat

421‧‧‧Joint

422‧‧‧Socket Department

Claims (6)

A sliding lock mechanism for a seat, a base of the seat is provided with at least one rod body, the lock mechanism includes: A positioning tube, which is sleeved on the rod body, can rotate corresponding to the rod body and does not correspond to the axial displacement of the rod body, and is provided with a positioning part on the positioning tube; A sliding seat is provided with a joint part on one side and the side of the seat base is linked and combined. The joint part has a sleeve part on one side. The sleeve part is provided with a sleeve hole for fitting a positioning tube, and the sleeve hole is provided with a card The positioning part, and the positioning tube is rotated on the rod body so that the sliding seat can be displaced along the positioning tube when the positioning part and the locking part are not engaged, and the positioning tube can be rotated on the rod body so that the positioning part and the locking part are engaged to lock Slide seat position. The sliding lock mechanism for a seat seat according to claim 1, wherein the positioning portion protrudes from the outside of the positioning tube and extends in the axial direction; and the sleeve hole of the sliding seat is provided with a concave portion at a position corresponding to the positioning portion of the positioning tube. The sliding lock mechanism for a seat seat according to claim 2, wherein the locking portion is provided at a position on the side of the recess corresponding to the recess. The sliding lock mechanism of a seat seat according to claim 3, wherein the positioning portion of the positioning tube is provided with a first protruding tooth group along the axial direction, and the locking portion of the sliding seat is provided with a first protruding tooth group The second set of teeth that mesh. The sliding lock mechanism of a seat seat according to claim 4, wherein the first convex tooth group has a plurality of first convex teeth arranged in series, and the end direction of the first convex tooth corresponds approximately to the axial direction of the positioning tube, and The second convex tooth set has a plurality of second convex teeth that can mesh with the first convex tooth. The sliding lock mechanism of a seat seat according to claim 1, wherein a radially protruding handle is provided outside the positioning tube.

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