TWI404853B - Elastic structure of a hinge - Google Patents

Abstract

An elastic structure of a hinge includes a hinge comprising a head seat, a hinged arm and an elastic member. The head seat has a hollow substance having a supporting portion. One end of the hinged arm has a rotatably coupling portion and a pair of cam portions next to the head seat. The hinged arm connects to the head seat through a first pin of a position pin. The elastic member includes a pair of front elastic portions, a rear elastic portion, a pair of middle portions connected to the front elastic portions and a pair of extending portions connected to the middle portions and the rear elastic portion. The front elastic portions abut against the cam portion of the hinged arm. The middle portions connect to the head seat through a second pin of the position pin. The rear elastic portion abuts against the supporting portion of a back wall of the head seat and distances the rear elastic portion and the extending portions away from the bottom wall of the head seat. Based on this, when the head seat moves relatively to the hinged arm, the front elastic portions of the elastic member can maintain the influence on the hinged arm, thus making the rear elastic portion of the elastic member take the pressure from the front elastic portions. A gap is formed between the rear elastic portion and the bottom wall of the head seat, thus allowing the rear elastic portion of the elastic member to have a better flexible extension room when it is forced.

Description

Elastic structure of the hinge

The present invention relates to a resilient construction of a hinge, and more particularly to a hinge for furniture.

The "Single-pin furniture hinge" of U.S. Patent No. 5,617,612, the disclosure of which is incorporated herein by reference. The pin 21) is connected to the cup-shaped member such that the cup-shaped member and the arm-shaped member are mutually rotatably displaced; and a pressure spring 23 whose front end is pressed against both sides of the arm-shaped member, and the rear end has a The central loop 25 is directly attached to the bottom of the cup-shaped member, and the intermediate portion is connected by a fastening pin 26 to displace the cup-shaped member and the arm-shaped member. The front end of the compression spring remains pressed against the arm-shaped element and transmits the elastic force to the central loop of its rear end. However, the central loop of the rear end of the pressure spring directly abuts against the bottom of the cup-shaped member, so that the deformation of the central loop due to the force is directly in rigid contact with the bottom of the cup-shaped member, and is easy. Detract from the service life of the pressure spring.

Therefore, in view of the above-mentioned lack of use in the prior art, it is necessary to provide a better design to improve the aforementioned deficiency.

SUMMARY OF THE INVENTION It is an object of the present invention to provide a resilient construction of a hinge that primarily provides a more flexible, resilient force to the hinge arm of the hinge to enhance the useful life of the resilient member within the hinge.

According to the present invention, the elastic structure of the hinge includes a headstock including a recessed body, the recessed body including a bottom wall, a pair of corresponding side walls, a front wall at a front end of the pair of side walls, and a The rear wall is located at a rear end portion of the pair of side walls, wherein the side wall, the front wall, and the rear wall extend upward from the bottom wall to jointly form an accommodation space; a hinge arm having a pivotal portion at one end thereof And a cam portion adjacent to the pivoting portion; an elastic member comprising a pair of front elastic portions, a rear elastic portion, a pair of intermediate portions connecting the pair of front elastic portions, and a pair of extending portions connecting the pair of intermediate portions and the elastic portion a rear elastic portion, wherein the pair of front elastic portions are cam portions that are pressed against the hinge arm; and a fixing pin has a first pin body and a second pin body corresponding to the first pin body, wherein the first pin body a pin body is mounted to a first position of the headstock and connected through a pivoting portion of the hinge arm to pivot the headstock and the hinge arm; the second pin body is mounted to the headstock a second position and connected through the pair of intermediate portions of the elastic member The elastic member is disposed in the receiving space of the headstock by the second pin body; wherein the rear wall of the headstock is provided with a supporting portion for supporting the rear elastic portion of the elastic member, and the rear elastic portion is The extension extends away from the bottom wall of the headstock.

Preferably, the support portion is a convex body for the rear elastic portion of the elastic member to abut against the convex portion.

Preferably, the support portion is a hole for the at least one protruding portion of the rear elastic portion of the elastic member to be placed in the support hole to abut.

Preferably, the elastic member is a double torsion spring.

Preferably, the fixing pin is a U-shaped member including a third pin body connecting the first pin body and the second pin body.

1 to 3 show a hinge according to a first preferred embodiment of the present invention, which includes a headstock 10, a hinge arm 12, an elastic member 14, and a fixing pin 16. among them:

The headstock 10 includes a recessed body 20. The recessed body 20 includes a bottom wall 22, a pair of corresponding side walls 24, a front wall 26 at a front end of the pair of side walls 24, and a rear wall 28 at the pair of side walls. The back end of 24. The side wall 24, the front wall 26, and the rear wall 28 extend upward from the bottom wall 22 to form a receiving space 30.

One end of the hinge arm 12 has a pivoting portion 32 and a pair of cam portions 34 are adjacent to the pivoting portion 32. In a preferred embodiment, the pivoting portion 32 is wound by a means to form a set of aperture patterns.

The elastic member 14 is a double torsion spring comprising a pair of front elastic portions 36, a rear elastic portion 38, a pair of intermediate portions 40 connecting the pair of front elastic portions 38, and a pair of extending portions 42 connecting the pair of intermediate portions 40 and the rear elastic portion 38. The pair of front elastic portions 36 are cam portions 34 that are pressed against the hinge arm 12. The pair of intermediate portions 40 are wound to form a spiral body. The rear elastic portion 38 is opposite to the rear wall 28 of the headstock 10; preferably, the rear wall 28 of the headstock 10 is provided with a supporting portion 44 for supporting the rear elastic portion 38, and the rear elastic portion is provided. The portion 38 and the extension 42 are separated from the bottom wall 22 of the headstock 10. In a preferred embodiment, the support portion 44 can be a convex body for the rear elastic portion 38 to abut against the convex portion.

The fixing pin 16 is substantially a U-shaped member, and includes a first pin body 18a, a second pin body 18b corresponding to the first pin body 18a, and a third pin body 18c connecting the first pin body 18a. And the second pin body 18b, the first pin body 18a of the fixing pin 16 is mounted at a first position of the side wall 24 of the headstock 10, and passes through the pivoting portion 32 of the hinge arm 12 to make the headstock 10 pivotable relative to the hinge arm 12 with the first pin body 18a as an axis; the second pin body 18b is mounted to the second position of the side wall 24 of the headstock 10 and passes through the elastic member 14 The intermediate portion 40 is disposed in the receiving space 30 of the headstock 10 by the second pin body 18b.

Thereby, the elastic force generated by the elastic member 14 is pressed against the hinge arm 12, so that the displacement of the headstock 10 relative to the hinge arm 12 maintains an elastic force. When the headstock 10 is displaced relative to the hinge arm 12, the front elastic portion 36 of the elastic member 14 is pressed against the cam portion 34 of the hinge arm 12, and the rear elastic portion 38 is used to abut the head seat. The rear wall 28 of the support 10 is supported, in particular, against the support portion 44 of the rear wall 28. When the head base 10 is actuated relative to the hinge arm 12, the elastic portion 36 of the elastic member 14 is maintained to act on the front portion. The hinge arm 12 causes the elastic portion 38 to receive the pressure from the front elastic portion 36 after the elastic member 14. After the elastic member 14 disclosed in the embodiment of the present invention, the elastic portion 38 is a support portion 44 that utilizes the rear wall 28 of the headstock 10 to support the rear elastic portion 38. With this type, the rear elastic portion 38 and the extension The portion 42 can leave the bottom wall 22 of the headstock 10 without directly contacting the elastic portion 38 of the elastic member 14 against the bottom wall 22 of the headstock 10, so that the elastic member 38 and the elastic portion 38 are opposite to the headstock. The bottom wall 22 of the 10 is maintained with a suitable gap to provide a preferred flexible extension of the resilient member 38 after the resilient member 38 is stressed.

4 and 5 show a hinge according to a second preferred embodiment of the present invention, including a head base 200, a hinge arm 202, and an elastic member 204. In this embodiment, the head base 200 has a recessed body 206. The rear wall 208 of the recessed body 206 has a support portion 210 for the rear elastic portion 212 of the elastic member 204 to abut. In this embodiment, the supporting portion 210 is formed in a shape of a hole, so that at least one protruding portion 214 of the rear elastic portion 212 of the elastic member 204 is inserted into the supporting hole 210 to abut. In this embodiment, after the elastic member 204, the elastic portion 212 does not directly abut against the bottom wall 216 of the head base 200, so that the elastic portion 212 and the elastic portion 212 are maintained relative to the bottom wall 216 of the head base 200. The gap has a better flexible extension space when the elastic member 204 is pressed by the elastic member 204.

Figure 6 is a view showing a hinge according to a third preferred embodiment of the present invention. The fixing member 300 of the hinge mainly includes two separate first pin bodies 302 and a second pin body 304 for respectively connecting to the head. A first position and a second position of the seat 10.

10. . . Head seat

12. . . Hinge arm

14. . . Elastic part

16. . . Fixed pin

18a. . . First pin body

18b. . . Second pin body

18c. . . Third pin body

20. . . Concave body

twenty two. . . Bottom wall

twenty four. . . Side wall

26. . . Front wall

28. . . Back wall

30. . . Accommodating space

32. . . Pivot

34. . . Cam section

36. . . Front elastic part

38. . . Rear elastic part

40. . . Middle part

42. . . Extension

44. . . Support

200. . . Head seat

202. . . Hinge arm

204. . . Elastic part

206. . . Concave body

208. . . Back wall

210. . . Support

212. . . Rear elastic part

214. . . Protruding section

216. . . Bottom wall

300. . . Fixed pin

302. . . First pin body

304. . . Second pin body

1 is an exploded perspective view showing a hinge configuration of a first embodiment of the present invention;

Figure 2 is a view showing a hinge assembly development view of the first embodiment of the present invention;

Figure 3 is a cross-sectional view showing the hinge assembly of the first embodiment of the present invention;

Figure 4 is a view showing a hinge assembly development view of a second embodiment of the present invention;

Figure 5 is a cross-sectional view showing the hinge assembly of the second embodiment of the present invention;

Fig. 6 is a view showing a hinge arrangement diagram of a third embodiment of the present invention.

10. . . Head seat

12. . . Hinge arm

14. . . Elastic part

16. . . Fixed pin

18a. . . First pin body

18b. . . Second pin body

18c. . . Third pin body

20. . . Concave body

twenty two. . . Bottom wall

twenty four. . . Side wall

26. . . Front wall

28. . . Back wall

30. . . Accommodating space

32. . . Pivot

34. . . Cam section

36. . . Front elastic part

38. . . Rear elastic part

40. . . Middle part

42. . . Extension

44. . . Support

Claims (5)

A resilient structure of a hinge includes: a head base including a recessed body, the recessed body including a bottom wall, a pair of corresponding side walls, a front wall at a front end of the pair of side walls, and a rear wall at the pair a rear end portion of the side wall, wherein the side wall, the front wall, and the rear wall extend upward from the bottom wall to jointly form a receiving space; a hinge arm having a pivoting portion and a cam portion abutting at one end thereof In the pivoting portion, an elastic member includes a pair of front elastic portions, a rear elastic portion, a pair of intermediate portions connecting the pair of front elastic portions, and a pair of extending portions connecting the pair of intermediate portions and the rear elastic portion, wherein The pair of front elastic portions are cam portions that are pressed against the hinge arm; and a fixing pin has a first pin body and a second pin body corresponding to the first pin body, wherein the first pin body is mounted on the first pin body a first position of the headstock and connected through the pivoting portion of the hinge arm to pivot the headstock and the hinge arm; the second pin body is mounted to a second position of the headstock And connecting through the pair of intermediate portions of the elastic member, so that the elastic member borrows the first The pin body is disposed in the receiving space of the headstock; wherein the rear wall of the headstock is provided with a supporting portion to support the rear elastic portion of the elastic member, and the rear elastic portion and the pair of extending portions are separated from the head The bottom wall of the seat. The elastic structure of the hinge according to claim 1, wherein the support portion is a convex body for the rear elastic portion of the elastic member to abut against the convex body. The elastic structure of the hinge according to claim 1, wherein the support portion is a hole for at least one protruding portion of the rear elastic portion of the elastic member to be placed in the support hole to abut. The elastic construction of the hinge according to claim 1, wherein the elastic member is a double torsion spring. The elastic structure of the hinge according to claim 1, wherein the fixing pin is a U-shaped member including a third pin body connecting the first pin body and the second pin body.