TWM668962U - Positioning structure and seat thereof - Google Patents

Abstract

A positioning device is suitable for positioning on a rod. The positioning device comprises: a sleeve having a through hole and fitting on the outer diameter of the rod and being able to slide relative to the rod along the axis of the rod; a handle pivotally connected to the sleeve, the handle being able to rotate relative to the sleeve to present an open state or a locked state; and a movable latch assembly disposed on the outer diameter of the sleeve, the movable latch assembly having an elastic block, a resilient member and a plurality of resilient members. A positioning spring, a latch, a compression spring and a spring sheet, wherein the latch is accommodated in the through hole of the sleeve, and when the latch is inserted into any positioning groove on the rod, an interference fixing state is formed; wherein, when the handle is rotated relative to the sleeve and is ready to be engaged, the handle causes the latch to selectively insert into any of the plurality of positioning grooves on the rod through the spring sheet and the compression spring to form an interference state, thereby limiting the positioning device to be positioned on the rod.

Description

Positioning device and its seat

The present invention provides a positioning device and a seat thereof, in particular a positioning device and a seat thereof that are convenient for adjusting the position.

If the back of the human body is not properly and comfortably supported when sitting for a long time, it will not only cause back pain, but also may cause permanent damage such as spinal deformity. In order to meet the needs of passengers of different heights, the known seats allow users to adjust the relative positions of the back cushion and the seat cushion. For example, the seat cushion position can be fixed or loosened by adjusting the bolt rotation. However, the above bolt rotation positioning method is not easy for users to operate.

Another adjustment method is to simply use a quick release or other pressing object to increase friction so that the user can quickly fix or loosen the seat position. However, the above-mentioned adjustment method using a pressing object may have insufficient support force after bearing the weight of the human body because there is no interference from a physical object.

In view of the above problems, the present invention provides a more novel positioning device, which is suitable for positioning on a rod, the rod having a plurality of positioning grooves, and the rod defining an axial direction. The quick-release positioning device comprises: a sleeve, which is in a hollow tubular shape, and the inner diameter of the sleeve is fitted on the outer diameter of the rod, and the sleeve can slide relative to the rod along the axial direction of the rod, and the sleeve has a through hole; a handle, which is pivoted on the sleeve, and the handle can be rotated relative to the sleeve to present an open state or a locked state; and a movable latch assembly, which is arranged on the outer diameter of the sleeve. , the movable latch assembly has an elastic block, a reset spring, a latch, a compression spring and a spring sheet, wherein the elastic block accommodates the latch, the reset spring, the compression spring and the spring sheet, the latch is accommodated in the through hole of the sleeve, and the latch forms an interference state when inserted into any of the plurality of positioning grooves on the rod; wherein, when the handle rotates relative to the sleeve to present the engaging state, the handle selectively inserts the latch into any of the plurality of positioning grooves on the rod through the spring sheet and the compression spring to form the interference state, thereby limiting the positioning device to be positioned on the rod.

In a preferred embodiment, a receiving groove is provided on the outer side of the sliding sleeve, and the movable latch assembly is received in the receiving groove of the sliding sleeve.

In a preferred embodiment, the handle has a protrusion and a pivot axis, and the protrusion is defined to have a first surface, the first surface being the surface of the protrusion that abuts against the elastic sheet when the handle is in the snap-on state, and the pivot axis is defined to be spaced from the first surface by a first diameter.

In a preferred embodiment, the protrusion has a second surface, which is the surface of the protrusion that contacts the elastic sheet when the handle is in the open state. The second surface is continuous with the first surface, and a second diameter is defined between the pivot axis and the second surface, and the second diameter is smaller than the first diameter.

Another object of the present invention is to provide a chair, comprising: a first rod having a plurality of positioning grooves, and the first rod defining an axial direction; a support member disposed on a second rod; and a positioning device disposed at the end of the second rod for limiting the position of the second rod on the first rod, the quick-release positioning device comprising: a sleeve, presenting a hollow tube shape, and being fitted on the outer diameter of the first rod at the inner diameter of the sleeve, and being able to slide relative to the first rod along the axial direction of the first rod, the sleeve having a through hole; a handle, pivotally connected to the sleeve, the handle being able to rotate relative to the sleeve to present an open state or a locked state; and a movable latch assembly, disposed on the outer diameter of the sleeve, the movable latch assembly having an elastic block, a return spring, a latch, a compression spring and a spring sheet, wherein the elastic block accommodates the latch, the return spring, the compression spring and the spring sheet, the latch is accommodated in the through hole of the sleeve, and the latch forms an interference state when inserted into any of the plurality of positioning grooves on the first rod; wherein when the handle rotates relative to the sleeve to present the buckled state, the handle is The spring and the compression spring cause the pin to selectively insert into any of the plurality of positioning grooves on the first rod to form the interference state, thereby limiting the positioning device to be positioned on the first rod; when the handle rotates relative to the sleeve to present the open state, the reset spring provides elastic force to allow the pin to automatically withdraw from the plurality of positioning grooves, thereby allowing the pin to escape from the interference state.

In a preferred embodiment, the support member is a chair cushion or a chair back.

The above description of the content of this new model and the following description of the implementation method are used to demonstrate and explain the principle of this new model and provide a further explanation of the scope of patent application of this new model.

1: First rod

10: Positioning slot

2: Support parts

20: Second rod

3: Positioning device

30: Sliding sleeve

300: Perforation

302: Container

32:Handle

320: Bump

322: Pivot axis

324: First surface

326: Second surface

34: Movable latch set

340: Elastic block

342:Return spring

344: Latch

346:Compression spring

348: Shrapnel

R1: First diameter length

R2: Second diameter length

The following will be described in detail with the accompanying drawings. It should be noted that, in accordance with standard practice in the industry, various features are not drawn to scale and are only used for illustration purposes. In fact, the size of the components can be arbitrarily enlarged or reduced to clearly show the features of the present invention.

Figure 1 is a three-dimensional schematic diagram of a preferred embodiment of the new chair.

Figure 2 is a schematic diagram of a decomposition of a preferred embodiment of the new positioning device.

Figure 3 is a cross-sectional diagram of the new type of latch in a state of disengagement from interference.

Figure 4 is a cross-sectional diagram of the sliding movement of the new type of sleeve relative to the rod.

Figure 5 is a cross-sectional diagram of the interference state formed by the new type of latch

The detailed features and advantages of the new model are described in detail in the following implementation method, and the content is sufficient for anyone familiar with the relevant technology to understand the technical content of the new model and implement it accordingly. According to the content disclosed in this specification, the scope of the patent application and the drawings, anyone familiar with the relevant technology can easily understand the new model. The following examples are to further illustrate the viewpoints of the new model, but they do not limit the scope of the new model by any viewpoint.

The following text may use "at least one" to describe the quantity of the described object, but unless otherwise clearly stated, it should not be limited to the case where the quantity is "only one". The following text may also use terms such as "form", "join", "docking", "setting", "configuration" to describe the relative position relationship between multiple layers, structures, and components, but unless otherwise clearly stated, it may cover the cases where the layers, structures, and components are directly in contact with each other, or there may be one or more intermediate media or other layers, structures, and components between the layers, structures, and components. The following text may also use terms such as "first" and "second", but this is mainly to distinguish between elements or operations described with the same terms, rather than to limit the order or sequence of elements or operations.

Please refer to Figures 1 to 5. Figure 1 is a three-dimensional schematic diagram of a preferred embodiment of the new chair. Figure 2 is a decomposed schematic diagram of a preferred embodiment of the new positioning device. Figure 3 is a cross-sectional schematic diagram of the new latch disengaging from the interference state. Figure 4 is a cross-sectional schematic diagram of the new sleeve sliding relative to the rod. Figure 5 is a cross-sectional schematic diagram of the new latch forming an interference state.

As shown in Figure 1, the new chair includes a first rod 1, a support member 2, and a positioning device 3. The first rod 1 has a plurality of positioning grooves 10, and the first rod 1 defines an axial direction. The support member 2 is disposed on a second rod 20. The positioning device 3 is disposed at the end of the second rod 20 to limit the position of the second rod 20 on the first rod 1. The support member 2 can be a chair cushion or a chair back.

As shown in Figures 2 to 5, the quick-release positioning device 3 includes: a sleeve 30, a handle 32 and a movable pin assembly 34. The sleeve 30 is in the shape of a hollow tube, and the inner diameter of the sleeve 30 is fitted on the outer diameter of the first rod 1, and the sleeve 30 can slide relative to the first rod 1 along the axis of the first rod 1 (as shown in Figure 4). The sleeve 30 has a through hole 300. As shown in Figure 2, a receiving groove 302 is provided on the outer side of the sleeve 30, and the movable pin assembly 34 is received in the receiving groove 302 of the sleeve 30.

The handle 32 is pivoted on the receiving groove 302 of the sliding sleeve 30. The handle 32 can be rotated relative to the sliding sleeve 30 to present an open state (as shown in Figure 3) or a locked state (as shown in Figure 5).

Please refer to Figure 5. The handle 32 has a protrusion 320 and a pivot axis 322, and the protrusion is defined to have a first surface 324. The first surface 324 is the surface of the protrusion that abuts against the elastic sheet when the handle is in the buckled state, and the pivot axis 322 is defined to be spaced from the first surface 324 by a first diameter R1.

Please refer to FIG. 3. The protrusion 320 has a second surface 326. The second surface 326 is the surface of the protrusion 320 that contacts the elastic sheet 348 when the handle 32 is in the open state. As shown in FIG. 3 and FIG. 5, in cross-section, the second surface 326 and the first surface 324 present a continuous curved surface. It is defined that the pivot axis 322 is separated from the second surface 326 by a second diameter R2. The second diameter R2 is smaller than the first diameter R1.

The movable latch assembly 34 is disposed in the receiving groove 302 of the outer diameter of the sliding sleeve 30. The movable latch assembly 34 has an elastic block 340, a return spring 342, a latch 344, a compression spring 346 and a spring sheet 348. The elastic block 340 accommodates the return spring 342, the latch 344, the compression spring 346 and the spring sheet 348. The latch 344 is accommodated in the through hole 300 of the sliding sleeve 30. The through hole 300, the return spring 342, the latch 344, the compression spring 346 and the spring sheet 348 are arranged in sequence along the radial direction of the sliding sleeve 30. The latch 344 forms an interference state when inserted into any of the plurality of positioning grooves 10 on the first rod 1.

Please refer to Figure 5. When the handle 32 rotates relative to the sleeve 30 to present the engaged state, the handle 32 abuts the spring 348 with the first surface 324, and the spring 348 and the compression spring 346 allow the pin 344 to selectively insert into any of the plurality of positioning grooves 10 on the first rod 1 to form the interference state, thereby limiting the positioning device 3 to be positioned on the first rod 1.

Please refer to Figure 3. When the handle 32 rotates relative to the sleeve 30 to present the open and closed state, the handle 32 abuts against the spring 348 with the second surface 326. The return spring 342 provides elastic force to allow the latch 344 to automatically withdraw from the plurality of positioning slots 10, thereby allowing the latch 344 to escape from the interference state.

Then, as shown in FIG. 4 , the user can slide the sleeve 30 relative to the first rod 1 , and after the sleeve 30 is adjusted to present a suitable relative position with the first rod 1 , repeat the above steps of rotating the handle 32 relative to the sleeve 30 , so that the handle 32 presents the buckled state.

In summary, the novel positioning device and its seat provide the user with a method of achieving interference with a physical object by inserting the latch 344 into the plurality of positioning grooves 10 when the handle 32 is rotated relative to the sleeve 30 to present the locking state. When the handle 32 is rotated relative to the sleeve 30 to present the opening and closing state, the return spring 342 provides elastic force to allow the latch 344 to automatically withdraw from the plurality of positioning grooves 10, thereby allowing the latch 344 to escape from the interference state. In this way, the user can rotate the handle 32 relative to the sleeve 30 to form the interference state or escape from the interference state between the latch 344 and the plurality of positioning grooves 10.

Although the embodiments of the present invention are disclosed as described above, they are not intended to limit the present invention. Anyone familiar with the relevant technology can make some changes to the shape, structure, features and spirit described in the scope of application of the present invention without departing from the spirit and scope of the present invention. Therefore, the scope of patent protection of the present invention shall be subject to the scope of the patent application attached to this specification.

1: First rod

10: Positioning slot

20: Second rod

3: Positioning device

30: Sliding sleeve

300: Perforation

302: Container

32:Handle

320: Bump

322: Pivot axis

34: Movable latch set

340: Elastic block

342:Return spring

344: Latch

346:Compression spring

348: Shrapnel

Claims (9)

A positioning device is suitable for positioning on a rod, the rod has a plurality of positioning grooves, and the rod defines an axial direction. The positioning device includes: a sleeve, which is hollow and tubular, and is sleeved on the outer diameter of the rod at the inner diameter of the sleeve, and the sleeve can slide relative to the rod along the axial direction of the rod, and the sleeve has a through hole; a handle, which is pivoted on the sleeve, and the handle can rotate relative to the sleeve to present an open state or a locked state; and a movable latch assembly, which is arranged on the outer diameter of the sleeve, and the movable latch assembly has an elastic block, a reset spring, a latch, a compression spring and a spring sheet, wherein the elastic block accommodates The latch, the return spring, the compression spring and the spring sheet, the latch is accommodated in the through hole of the sleeve, and the latch forms an interference state when inserted into any of the plurality of positioning grooves on the rod; wherein, when the handle rotates relative to the sleeve and presents the engaging state, the handle selectively inserts the latch into any of the plurality of positioning grooves on the rod through the spring sheet and the compression spring to form the interference state, thereby limiting the positioning device to be positioned on the rod; when the handle rotates relative to the sleeve and presents the opening state, the return spring provides elastic force to allow the latch to automatically withdraw from the plurality of positioning grooves, thereby allowing the latch to escape from the interference state. As described in claim 1, the positioning device has a receiving groove on the outer side of the sliding sleeve, and the movable latch assembly is received in the receiving groove of the sliding sleeve. The positioning device as described in claim 1, wherein the handle has a protrusion and a pivot axis, and the protrusion is defined to have a first surface, the first surface being the surface of the protrusion that abuts against the elastic sheet when the handle is in the snap-on state, and the pivot axis is defined to be spaced from the first surface by a first diameter. The positioning device as described in claim 3, wherein the protrusion has a second surface, the second surface is the surface of the protrusion that contacts the spring when the handle is in the open state, the second surface is continuous with the first surface, and a second diameter is defined between the pivot axis and the second surface, and the second diameter is smaller than the first diameter. A chair, comprising: a first rod having a plurality of positioning grooves; a support member disposed on a second rod; and a positioning device as described in any one of claims 1 to 4; wherein the positioning device is disposed at the end of the second rod to limit the position of the second rod on the first rod. A chair as described in claim 5, wherein the support member is a seat cushion or a seat back. A chair as described in claim 5, wherein the sliding sleeve is fitted on the outer diameter of the first rod at its inner diameter and can slide relative to the first rod along the axis of the first rod. A chair as described in claim 5, wherein the latch forms the interference state when inserted into any of the plurality of positioning grooves on the first rod. As described in claim 5, when the handle rotates relative to the sleeve to present the engaged state, the handle causes the pin to selectively insert into any of the plurality of positioning grooves on the first rod through the spring and the compression spring to form the interference state, thereby limiting the second rod to be positioned on the first rod.

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