TWM511801U - Reclining and positioning device of chairs - Google Patents

Description

Seat tilting positioning device

The present invention relates to a tilting positioning device for a seat, and more particularly to a tilting positioning device that is rotationally converted into an axially movable latch.

According to the general seat, the seat is more and more comfortable and safe. Therefore, the design of the tilting positioning is also widely used. The Republic of China Patent Bulletin No. M448731 "The seat tilting fixed adjustment lever" mainly exposes the positioning card for the seat reclining. The cymbal structure is provided with a sliding bushing in the sleeve body, and two springs are used to pivot the shaft between the sliding bushing and the sleeve body, and then the bolt is pivotally connected to the sleeve body by the bolt shaft. The wrench is pulled by ninety degrees, so that the arc contact end pushes the sliding bushing to slide, and then the axial displacement of the shaft of the shaft is pushed to achieve the purpose of positioning the card, but the above-mentioned conventional structure can reach the tilting The effect of the positioning of the cassette, but there are still some complicated defects in the design, thereby increasing the manufacturing cost.

Therefore, the object of the present invention is to provide a tilting positioning device for a seat having a simple structure.

Therefore, the reclining positioning device of the new seat can be used with a seat of the seat and a base, and the top seat is fixed under the seat cushion of the seat, and the base is supported by one of the seats. The tripod is coupled and pivotally connected to the top seat, and an axial corresponding one of the rotating holes is formed thereon a tilting hole, the tilting positioning device comprises a adjusting rod, a shaft shifting member and a latch; the adjusting rod can pass through the rotating hole, and a pin hole is formed at one end thereof; the shaft shifting member is connected to the rotating shaft The rod is assembled, and has a set of joints, and a card abutting portion integrally extending from the sleeve portion, the sleeve portion is formed with a shaft hole through which the adjusting rod is inserted, and is simultaneously connected with the shaft hole a retreating slot and a card shifting slot, the retreating slot and the card slotting hole also communicating with each other, and a difference in the axial direction of the socket portion therebetween, the card abutting portion passing through the slot a limiting hole; the pin passes through the retreating slot and penetrates into the pin hole of the adjusting rod; when the adjusting rod is rotated, the pin can be between the retracting slot and the card shifting slot Moving back and forth to axially displace the card abutting portion of the shaft shifting member relative to the base, so that the base can be pivotally positioned relative to the top seat, thereby achieving the effect of the seat tilt positioning.

1‧‧‧ tilt positioning device

2‧‧‧Base

21‧‧‧ Front seat

211‧‧‧ left wall

212‧‧‧ right wall

213‧‧‧Rotating hole

214‧‧‧Restricted hole

3‧‧‧Rotary lever

31‧‧‧ pinhole

32‧‧‧ Ring groove

33‧‧‧ positioning ring

4‧‧‧Axis moving parts

41‧‧‧ Sockets

411‧‧‧Axis hole

412‧‧‧Retracting slot

413‧‧‧ card slot

42‧‧‧Cards

5‧‧‧Latch

6‧‧‧Flexible parts

1 is an exploded perspective view of a tilt positioning device for a seat of a preferred embodiment of the present invention.

Fig. 2 is a perspective view of a tilt positioning device for a seat of a preferred embodiment of the present invention.

Figure 3 is a front elevational view of the tilt positioning device of the preferred embodiment of the present invention.

Figure 4 is a plan view of the tilt positioning device of the preferred embodiment of the present invention.

Fig. 5 is a perspective view showing the tilting positioning device of the seat of a preferred embodiment of the present invention.

Figure 6 is a front view of the tilt positioning device of the preferred embodiment of the present invention.

Figure 7 is a plan view showing the tilting position of the seat reclining device of a preferred embodiment of the present invention.

Referring to Figures 1 to 4, the tilting positioning device 1 of the preferred embodiment of the present invention can be used with a seat (not shown) of a seat (not shown) and a base 2 for use. The seat is fixed under the seat cushion (not shown) of the seat, and the base 2 is supported by one of the seats (Fig. Not shown) and connected to the top seat so as to be relatively adjustable in tilting angle, having a front pivot seat 21 formed with a left side wall 211 and a right side wall 212, respectively, and on the left side A circular rotating hole 213 and a semicircular limiting hole 214 are defined in the wall 211 and the right side wall 212. The rotating hole 213 is axially disposed corresponding to the limiting hole 214, and the tilt positioning device 1 includes a adjusting lever 3. A shaft shifting member 4, a latch 5 and an elastic member 6.

The adjusting rod 3 is configured to pass through the rotating hole 213, and has a pin hole 31 and a ring groove 32 at one end thereof. When the adjusting rod 3 is disposed in the rotating hole 213, the positioning ring 33 is looped in the ring groove. In the 32, the positioning ring 33 is caused to abut against the outer side of the left side wall 211 of the front pivot seat 21.

The shaft shifting member 4 is assembled with the adjusting lever 3, and has a set of connecting portions 41, and a locking portion 42 integrally extended and contracted by the sleeve portion 41. The sleeve portion 41 is formed with a a shaft hole 411 through which the adjusting rod 3 is disposed, and a retracting slot 412 and a card shifting slot 413 communicating with the shaft hole 411 at the same time, the retracting slot 412 and the card shifting slot 413 are also in communication with each other, and A gap is generated between the two in the axial direction of the socket portion 41, that is, the retracting slot 412 is closer to the card abutting portion 42 than the card slot portion 413. The card abutting portion 42 has a semicircular design and corresponds to The through hole 214 is passed through to protrude the right side wall 212 of the front pivot seat 21.

The latch 5 passes through the card slot 413 and is inserted into the pin hole 31 of the adjusting lever 3 to connect the shaft shifting member 4 and the adjusting lever 3 to each other. When the adjusting lever 3 is rotated, the latch 5 is rotated. The latch 5 is movable between the card shifting slot 413 and the retracting slot 412 as the shifting lever 3 swings.

The elastic member 6 is sleeved on the adjusting rod 3, and the two ends of the elastic member 6 are respectively mounted on the inner side of the sleeve portion 41 of the shaft shifting member 4 and the left side wall 211 of the front pivot seat 21, so that the adjusting rod 3, The shaft shifting member 4 and the plug 5 are maintained in close contact.

In the assembly, the locking portion 42 of the shaft shifting member 4 is first inserted into the limiting hole 214. The positioning ring 33 is disposed in the ring groove 32 of the adjusting rod 3, and the adjusting rod 3 is sequentially passed through the rotating hole 213 and the elastic member 6, and then penetrates into the shaft hole of the sleeve portion 41. In the 411, the latch 5 is finally inserted into the pin hole 31 of the adjusting lever 3 via the card slot 413, that is, the assembly between the components is completed. At this time, the latching portion 42 of the shaft shifting member 4 is convex. The limit hole 214.

Please refer to pictures 5~7. When the seat needs to be positioned after adjusting the tilt angle, as long as the adjustment lever 3 is rotated, the adjustment lever 3 can drive the pin 5 to be moved by the card shown in FIG. 413 is displaced to the retreating slot 412 shown in FIG. 5, and during the movement of the latch 5, since the card slot 413 and the retracting slot 412 have axial dislocations, the axis shifting member 4 The axial displacement of the pin 5 is caused by the pushing of the pin 5, that is, the abutting portion 42 of the shaft shifting member 4 is retracted into the limiting hole 214, so that the top seat (not shown) is adjusted relative to the base 2, The rotary lever 3 is reversely rotated, and the latch 5 is displaced from the retracting slot 412 to the latching slot 413, so that the latching portion 42 extends beyond the right side wall 212 to be engaged with the top seat (not shown) for positioning. The tilting angle of the top seat (not shown) relative to the base 2 achieves the effect of the seat tilt positioning. In addition, if the tilting position of the seat is to be released, the revolving lever 3 is reversed again, and the latch 5 is further The card shifting hole 413 is displaced to the retracting slot 412, and the shaft shifting member 4 is driven to return axially, so that the latching portion 42 can be returned to the position shown in FIG. 5, and the adjustment is performed. Process, the user simply reverses the lever 3 to turn the light, even in the operation for the effort.

It should be further noted that, in the process of rotating the adjusting rod 3, the elastic member 6 always maintains an elastic top against the shaft shifting member 4, so that the adjusting rod 3, the shaft shifting member 4 and the bolt 5 are tightly engaged to avoid the foregoing The loosening between the components can improve the safety of use, and since the limiting hole 214 and the abutting portion 42 are semi-circular, the rotating member 4 does not rotate when the adjusting lever 3 is rotated. .

The tilting positioning device 1 of the present invention mainly comprises a turning lever 3, a shaft shifting member 4, and a The latch 5 and an elastic member 6 are formed, and the rotation of the swing lever 3 is converted into the axial displacement of the shaft shifting member 4, thereby achieving the purpose of the seat tilting positioning, and the structure is obviously simpler than the conventional one, and the assembly is quicker. The manufacturing cost can also be greatly reduced, thereby enhancing market competitiveness.

1‧‧‧ tilt positioning device

2‧‧‧Base

21‧‧‧ Front seat

211‧‧‧ left wall

212‧‧‧ right wall

213‧‧‧Rotating hole

214‧‧‧Restricted hole

3‧‧‧Rotary lever

31‧‧‧ pinhole

32‧‧‧ Ring groove

33‧‧‧ positioning ring

4‧‧‧Axis moving parts

41‧‧‧ Sockets

411‧‧‧Axis hole

412‧‧‧Retracting slot

413‧‧‧ card slot

42‧‧‧Cards

5‧‧‧Latch

6‧‧‧Flexible parts

Claims (3)

A tilting positioning device for a seat, which can be used with a seat of a seat and a base, the top seat is fixed under a seat cushion of the seat, and the base is supported by one of the seats The frame is coupled to and pivotally connected to the top seat, and has an axial corresponding one of the rotating hole and a limiting rotating hole, and the tilting positioning device comprises: a adjusting rod through which the rotating hole can pass And a pin hole is formed at one end thereof; a shaft shifting member is assembled with the adjusting rod, and has a set of connecting portions, and a card abutting portion integrally extended by the socket portion, the socket portion is formed with a a shaft hole through which the adjusting rod is inserted, and a connecting slot hole and a card shifting slot hole communicating with the shaft hole at the same time, the retreating slot hole and the card shifting slot hole are also in communication with each other, and between The axial direction of the socket portion generates a difference, the card abutting portion passes through the limiting hole; and a latch that passes through the card slot and penetrates into the pin hole of the adjusting rod; When the lever is rotated, the latch can move back and forth between the card slot and the retracting slot to make the card abutting portion of the shaft shifting member opposite to the bottom Axial displacement. The tilting positioning device of the seat according to the first aspect of the invention, wherein the tilting positioning device further comprises an elastic member, the elastic member is sleeved on the adjusting rod, and the two ends thereof are respectively topped The sleeve of the shaft shifting member and the base. The tilting positioning device for a seat according to the second aspect of the invention, wherein the abutting portion and the limiting hole of the shaft shifting member are semicircular.