TWI816630B - Positioning parts for chair adjustment devices - Google Patents

Abstract

The invention relates to a positioning part of a chair adjustment device. The positioning part is made of a plurality of positioning pieces stacked together; each positioning piece of a single piece has a positioning part, a combining part and a penetration part; the joining part is made of One side is composed of a recessed groove and the other side is a convex pillar. The outer diameter of the raised pillar matches the inner diameter of the groove, so that the two positioning pieces stacked up and down are located on the upper side. The protruding post of the positioning piece can be embedded in the groove of the positioning piece on the lower side, so that the two positioning pieces stacked up and down can form a tight-fitting combination; thereby simplifying the assembly of the positioning piece engineering, thereby reducing the cost of the chair adjustment mechanism.

Description

Positioning parts for chair adjustment devices

The present invention provides a positioning component of a chair adjusting device, and in particular, a positioning component of a chair adjusting device that can simplify the assembly process of the positioning component and thereby reduce the cost of the chair adjusting device.

As shown in FIG. 1 , in order to provide the chair 1 with better comfort when riding, an adjustment device 2 that can adjust the pitch of the chair 1 is provided on the bottom surface of the seat cushion 11 of the chair 1 .

As shown in Figures 1 and 2, the adjusting device 2 at least has a positioning member 21 after positioning and adjusting the angle; the positioning member 21 is provided with a plurality of positioning grooves 211 on one side for latch positioning; the positioning member 21 is It is composed of a plurality of stacked positioning pieces 21a formed by stamping. More specifically, each positioning piece 21a punches out the positioning groove 211 on one side, and punches out the coupling through hole 212 on the other side of the positioning groove 211. Generally, there are two coupling through holes 212; The positioning member 21 is assembled by stacking a plurality of the positioning pieces 21a, and then fixing the fixing element 22 through the two combination through holes 212 with a fixture. The fixing element 22 is usually implemented by rivets, that is, The fixing elements 22 (rivets) are used to combine multiple pieces of the positioning pieces 21a into a block-shaped positioning piece 21; since the positioning piece 21 is made by engineers stacking pieces of the positioning pieces 21a, The fixing element 22 is then used to rivet the plurality of positioning pieces 21a into a block shape; therefore, the positioning piece 21 The production process is complicated and the labor cost is greatly increased, and errors are prone to occur during riveting.

Therefore, how to provide a positioning member for a chair adjustment device to effectively reduce the manufacturing cost of the positioning member has become an urgent issue for chair manufacturers.

The main purpose of the present invention is to provide a positioning member for a chair adjustment device, which overcomes the disadvantage of the conventional positioning member assembly process being complicated and causing the production cost of the positioning member to be too high.

The main technical means of the present invention is to provide a positioning part of a chair adjustment device. The positioning part is made of a plurality of positioning pieces stacked together; each positioning piece of a single piece has a positioning part, a connecting part and a penetration part; The joint is composed of a concave groove on one side and a convex column on the other side. The outer diameter of the convex column matches the inner diameter of the groove, whereby the two positioning positions are stacked one above the other. piece, the protruding post of the positioning piece located on the upper side can be embedded in the groove of the positioning piece located on the lower side, so that the two positioning pieces stacked up and down can form a tight-fitting combination.

The effect achieved by the present invention through the main technical means can simplify the assembly process of the positioning member, thereby reducing the cost of the chair adjustment device.

1:Chair

11: Seat cushion

2: Adjustment device

21: Positioning parts

211: Positioning slot

212: Combined piercing

21a: Positioning film

22: Fixed components

3: Positioning parts

4: Positioning film

4a: Positioning piece

4b: Positioning film

4c: Positioning piece

41: Positioning Department

411: Positioning gear

42:Joint

421: Groove

422:Protruding pillar

43: Wearing Department

431:Perforation

A: punching column

[Figure 1] is a schematic diagram of the positioning parts of a conventional chair adjustment device.

[Figure 2] is a schematic diagram of the assembly of conventional positioning parts.

[Figure 3] is an exploded view of the positioning member of the present invention.

[Figures 4 and 5] are schematic diagrams of the assembly operation of the positioning member of the present invention.

In order to make it easier for the examiner to understand the structure of the present invention and the effects it can achieve, the description is as follows with reference to the drawings:

First, please refer to FIG. 3 , which shows the positioning member of the chair adjustment device of the present invention. The positioning member 3 is composed of a plurality of positioning pieces 4 stacked on top of each other.

As shown in Figures 3 and 4, the positioning piece 4 is a sheet-shaped body made by stamping; the positioning piece 4 is punched into a sheet-like body by die stamping, and at the same time, the positioning piece 4 is punched out on one side. The positioning part 41, as well as the connecting part 42 and the penetration part 43 on the other side.

As shown in FIGS. 3 and 4 , the positioning portion 41 is composed of a plurality of concave and convex positioning teeth 411 .

As shown in Figures 3 and 4, the coupling portion 42 is composed of a concave groove 421 on one side and a convex column 422 on the other side. The outer diameter of the convex column 422 is consistent with the inner diameter of the groove 421. The diameters match, whereby the protruding posts 422 of the upper positioning piece 4a of the two stacked positioning pieces 4 can be embedded in the groove 421 of the lower positioning piece 4b, thereby Two pieces of the positioning pieces 4 stacked up and down can form a close-fitting combination; two of the joining parts 42 of the present invention are provided as an example.

As shown in FIG. 3 , the penetration portion 43 is composed of perforations 431 . The penetration portion 43 of the present invention is provided with two perforations 431 as an example.

As shown in Figures 3, 4, and 5, the positioning piece 3 of the present invention is assembled by stamping and pressing a mold to form a single piece of the positioning piece having the positioning part 41, the connecting part 42, and the penetration part 43. 4; Then, the positioning part 41 and the connecting part 4 have been punched out in an automated manner. 2. The single positioning piece 4 of the sheet-like body of the penetration part 43 is automatically moved to the combined stamping die to be stacked. When another single piece of the positioning piece 4 is stacked on the single positioning piece 4, that is, It can be stamped and combined; that is, the protruding pillar 422 of the positioning piece 4a located on the upper side is inserted into the groove 421 of the positioning piece 4b located on the lower side by punching force, so that the upper and lower stacked Two pieces of the positioning pieces 4a and 4b can form a close-fitting combination; another piece of the positioning piece 4 is stacked and then stamped and combined. When the plurality of pieces of the positioning pieces 4 are stamped and combined to a preset thickness, then The protruding column 422 of the lowermost positioning piece 4c is punched with the punching column A, so that the protruding column 422 of the lowermost positioning piece 4c can be retracted upward, thereby setting the lowermost positioning piece 4c The protruding pillar 422 becomes concave, which means that the surface of the protruding pillar 422 of the lowermost positioning piece 4c can maintain a slightly flat shape without protrusion. This completes the assembly of the positioning member 3; what is more important to mention is that When the protrusion 422 of the lowermost positioning piece 4c is punched and retracts upward, all the positioning pieces 4 located above the lowermost positioning piece 4c can absorb the lowermost positioning piece 4c in a gradually decreasing manner. The amount of contraction of the protruding pillar 422.

The effect of the present invention is that the positioning piece 3 is formed by stacking a plurality of positioning pieces 4; each single piece of the positioning piece 4 has the positioning part 41, the joining part 42 and the penetration part. 43; The coupling portion 42 is composed of the concave groove 421 on one side and the convex column 422 on the other side. The outer diameter of the convex column 422 matches the inner diameter of the groove 421. With the two positioning pieces 4 stacked up and down, the protruding post 422 of the positioning piece 4a located on the upper side can be embedded in the groove 421 of the positioning piece 4b located on the lower side, so that the two positioning pieces 4 stacked up and down can be inserted into the groove 421 of the positioning piece 4b located on the lower side. The two positioning pieces 4 can form a tight-fitting combination, thereby simplifying the assembly process of the positioning piece 3 and thereby reducing the cost of the chair adjustment device.

To sum up, the positioning member of the chair adjusting device of the present invention not only has a simple structure but also It can effectively improve the use efficiency, and it has the requirements of novelty and advancement. I submit an application for invention in accordance with the law. I pray that the examiner will give you a detailed review and grant the patent approval. It is most convenient.

3: Positioning parts

4: Positioning film

41: Positioning Department

411: Positioning gear

42:Joint

421: Groove

422:Protruding pillar

43: Wearing Department

431:Perforation

A: punching column

Claims (3)

A positioning piece for a chair adjustment device. The positioning piece is formed by stacking a plurality of positioning pieces; each positioning piece of a single piece has a positioning part, a combining part and a penetration part; the joining part is made of a concave side on one side. The groove is formed with a convex column on the other side. The outer diameter of the convex column matches the inner diameter of the groove. Thereby, the two positioning pieces are stacked up and down, and the positioning piece on the upper side is The protruding post can be embedded in the groove of the positioning piece located on the lower side, so that the two positioning pieces stacked one above the other can form a tight-fitting combination. The positioning member of the chair adjustment device according to claim 1, wherein the positioning part has a plurality of positioning teeth. The positioning member of the chair adjustment device according to claim 1, wherein the penetration part is a perforation; there are two perforations.

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