CN112943022A

CN112943022A - Furniture hinge and damping device thereof

Info

Publication number: CN112943022A
Application number: CN202110417918.6A
Authority: CN
Inventors: 梁秀江; 陈庚金; 王俊强
Original assignee: King Slide Works Co Ltd; King Slide Technology Co Ltd
Current assignee: King Slide Works Co Ltd; King Slide Technology Co Ltd
Priority date: 2016-06-07
Filing date: 2016-06-07
Publication date: 2021-06-11
Also published as: CN107476697A

Abstract

The invention relates to a furniture hinge and a damping device thereof. The shell comprises a cavity, and a buffer medium is filled in the cavity; the piston and the base are arranged in a chamber of the housing; the ring is arranged between the piston and the base; wherein a channel is formed between the ring and the base to allow the flow of the buffer medium.

Description

Furniture hinge and damping device thereof

The present application is a divisional application of an invention patent application entitled "furniture hinge and damping device thereof" filed on 2016, 06, 07 and having an application number of "201610399490.6".

Technical Field

The present invention relates to a damping device, and more particularly, to a damping device applicable to a furniture object.

Background

In general, certain furniture items, such as doors or cabinets, are provided with damping means. The damping device can be used for providing a first component with a buffer function relative to a second component from opening to closing so as to relieve the force of the first component relative to the second component when closing. For example, U.S. patent publication Nos. US 9,057,214B2 and US 8,925,151B2 both disclose furniture hinges having similar technical means. For example, US 9,057,214B2 discloses a furniture hinge with a reduction gear. The hinge (10) is mountable to a piece of furniture, the hinge (10) comprising a hinge arm (12) and a hinge cup (13) which are pivotably connected to each other. Wherein the hinge arm (12) is securable to a fixed part of the furniture and the hinge cup (13) is securable to a door (14) of the furniture. The furniture hinge comprises a reduction device (22) connected to the hinge cup (13). The reduction gear (22) includes a slider (24) having a first cylindrical portion (24') and a second cylindrical portion (24 "). Wherein the first column part (24') can be used for accommodating related parts such as a piston (27), a piston rod (31) and the like; the second cylindrical portion (24') can be used to house elastic means (25). However, this type of reduction unit (22) is relatively complex in overall construction, providing the slider (24) with a first cylindrical portion (24') and a second cylindrical portion (24 ") for housing the various relative parts. Therefore, if a different cushioning product can be developed, more options will be available to the market.

Disclosure of Invention

The invention aims to provide a damping device, which can provide a buffer effect when two components are opened to be closed relatively.

According to one aspect of the present invention, a damping device includes a housing, a piston, a base, and a ring. The shell comprises a cavity, and a buffer medium is filled in the cavity; the piston is arranged within the chamber of the housing; its special DIAN is: the base is arranged in the cavity of the shell; the ring is arranged between the piston and the base; wherein a channel is formed between the ring and the base to allow the flow of the buffer medium.

Preferably, the base has a surface facing the ring, the surface having at least one recess, such that the channel is formed between the ring and the base.

Preferably, the at least one recess has an inclined surface inclined with respect to the surface.

Preferably, the inclined surface extends to the periphery of the base.

Preferably, the base has a surface facing the ring, the surface having at least one rib having a height relative to the surface such that the channel is formed between the ring and the surface of the base.

Preferably, the base includes a plurality of protrusions for providing the ring against, the protrusions forming the channel therebetween.

Preferably, the inner wall of the chamber has a groove for providing the flow of the buffer medium in the chamber when the housing and the piston are relatively displaced.

Preferably, the grooves are disposed in the same direction as the direction of relative displacement between the housing and the piston.

Preferably, the ring is made of a flexible material.

Preferably, the buffer medium comprises a fluid.

Preferably, the damping device further comprises a piston rod connected to the piston, and an elastic member providing an elastic force between the housing and the piston.

Preferably, the piston rod or the piston is made of a metallic material.

Preferably, the resilient member is disposed within the cavity of the housing.

Preferably, the base is mounted on the piston, and the base abuts against the elastic member.

Preferably, the housing further includes an opening communicating with the cavity, the damping device further includes a cover member disposed adjacent to the opening of the housing, and the piston rod passes through the cover member, the cover member includes a cover body, a sleeve member and a sealing ring, the cover body has a space for accommodating the sleeve member, and the sealing ring is disposed on the cover body.

According to another aspect of the present invention, a furniture hinge includes a first member, a second member and a damping device. The second member is pivoted with the first member; the damping device is mounted on one of the first member and the second member, and has a characteristic DIAN: the damping device comprises a shell, a piston rod, an elastic piece, a base and a ring piece. The shell comprises a cavity, and a buffer medium is filled in the cavity; the piston is arranged within the chamber of the housing; the piston rod is connected with the piston; the elastic piece provides elastic force between the shell and the piston; the base is arranged in the cavity of the shell; the ring is arranged between the piston and the base; wherein a channel is formed between the ring and the base to allow the flow of the buffer medium.

Preferably, the inner wall of the chamber has a groove, the housing and the piston rod of the damping device are relatively displaced in response to the closing process when the first member is opened to be closed relative to the second member, and the buffer medium can flow in the chamber through the groove.

Preferably, the first member is a hinge cup and the second member is a hinge arm, the damping device being mounted in the hinge cup.

Drawings

For further explanation of the above objects, structural features and effects of the present invention, the present invention will be described in detail below with reference to the accompanying drawings, in which:

fig. 1 shows an exploded view of a damping device according to a first embodiment of the present invention.

Fig. 2 shows a perspective view of the housing of the damping device according to the first embodiment of the present invention.

Fig. 3 is a perspective view of the base of the damping device according to the first embodiment of the present invention.

Fig. 4 shows an assembly diagram of the damping device according to the first embodiment of the present invention.

Fig. 5 shows a schematic diagram of the relative displacement of the housing and the piston of the damping device according to the first embodiment of the present invention.

FIG. 6 shows an enlarged view of area A of FIG. 5 to show that the ring can be used to plug a gap.

Fig. 7 shows a schematic view of the continued relative displacement of the housing and the piston of the damping device according to the first embodiment of the present invention.

Fig. 8 is a schematic view showing the displacement of the housing of the damping device according to the first embodiment of the present invention relative to the piston in response to the elastic force of an elastic member.

Fig. 9 is a schematic view showing the housing of the damping device according to the first embodiment of the present invention in an initial state with respect to the piston in response to the elastic force of the elastic member.

Figure 10 shows a schematic view of the base of a damping device according to a second embodiment of the invention.

Fig. 11 is a schematic view showing the displacement of the housing of the damping device according to the second embodiment of the present invention relative to the piston in response to the elastic force of an elastic member.

Fig. 12 shows a schematic view of the base of a damping device according to a third embodiment of the invention.

Fig. 13 is a schematic view showing the displacement of the housing of the damping device according to the third embodiment of the present invention relative to the piston in response to the elastic force of an elastic member.

Fig. 14 shows a schematic view of the base of a damping device according to a fourth embodiment of the invention.

Fig. 15 is a schematic view showing the displacement of the housing of the damping device according to the fourth embodiment of the present invention relative to the piston in response to the elastic force of an elastic member.

Fig. 16 is a perspective view of a damping device according to an embodiment of the present invention applied to a furniture hinge.

Detailed Description

Fig. 1 shows a damping device 20 according to an embodiment of the present invention, which includes a housing 22, a piston 24, a ring 26 and a base 28. Preferably, the damping device 20 further comprises a piston rod (piston rod)30, an elastic member 32 and a cover member 34.

As shown in fig. 2, the housing 22 includes a chamber 36 and an opening 38 in communication with the chamber 36. Preferably, the inner wall 40 of the chamber 36 has a groove 42. Here, the groove 42 is disposed along the longitudinal direction L of the housing 22. Although the groove 42 is illustrated as a long groove (rectangular groove) in fig. 2, the shape of the groove 42 is not limited thereto.

As shown in fig. 3, the base 28 has a surface 44, and the surface 44 has at least one recess 46. Preferably, the at least one recess 46 has a sloped surface 48 that is sloped relative to the surface 44. And the bevel 48 extends to a periphery 50 of the base 28, such as an edge. Preferably, the ramp 48 has a top 49 and a bottom 51, the bottom 51 is disposed at the periphery 50 of the base 28, and the top width W1 of the ramp 48 is less than the bottom width W2.

As shown in FIG. 4, the cover assembly 34 is disposed adjacent the opening 38 of the housing 22. Preferably, the cover assembly 34 includes a cover 52, a sleeve 54, and a sealing ring 56. The cover 52 has a space 58 for accommodating the sleeve 54; the sealing ring 56 is disposed around the cover 52 to seal the opening 38 of the housing 22.

The chamber 36 of the housing 22 may be filled with a buffer medium 60 (the buffer medium 60 is shown as a plurality of black dots in fig. 4). The buffer vehicle 60 contains a fluid, such as oil or a liquid.

The piston 24, the ring 26 and the base 28 are arranged within the chamber 36 of the housing 22. Preferably, the base 28 is mounted to the piston 24. For example, the base 28 may be mounted to the piston 24 by a snap-fit, threaded, sleeved, or riveted connection. Wherein the surface 44 of the base 28 faces the ring 26.

Further, the ring 26 is arranged between the piston 24 and the base 28. For example, a mounting space S is formed between the piston 24 and the base 28, and the ring 26 is located in the mounting space S. Preferably, the ring 26 is made of a flexible material. A passage 62 is formed between the ring 26 and the base 28. Preferably, the channel 62 is formed between the ring 26 and the base 28 by the at least one recess 46 of the base 28.

The piston rod 30 is connected to the piston 24, and a portion of the piston rod 30 passes through the sleeve 54 and the cover 52. Preferably, the piston rod 30 and the piston 24 may be integrally formed; alternatively, the piston rod 30 and the piston 24 may be two separate components and coupled to each other by corresponding structures (e.g., threaded or snap-fit). The piston rod 30 and the piston 24 may be made of metal material. Alternatively, the piston 24 may be a non-metallic material.

The elastic member 32 is used to provide elastic force between the housing 22 and the piston 24. Wherein the piston 24 can be maintained at a predetermined position in response to the elastic force of the elastic member 32, so that the portion of the piston rod 30 can be maintained to protrude out of the opening 38 of the housing 22. Preferably, the resilient member 32 is disposed in the cavity 36 of the housing 22, and the base 28 abuts against the resilient member 32.

As shown in fig. 4 and 5, the housing 22 and the piston 24 are capable of relative displacement. For example, when the piston rod 30 is fixed (e.g., the piston rod 30 is abutted against an object) and a force is applied to the housing 22 in a first direction D1, the housing 22 is displaced in the first direction D1, so that the housing 22 and the piston 24 are relatively displaced; alternatively, when the housing 22 is fixed (e.g., the housing 22 is fixed against an object) and a force is applied to the piston rod 30 in a second direction (opposite to the first direction D1), the piston rod 30 is displaced in the second direction, so that the housing 22 and the piston 24 are also displaced relative to each other.

In this embodiment, for example, when the piston rod 30 is fixed and the housing 22 is displaced relative to the piston 24 in the first direction D1 in response to the force, the elastic element 32 can accumulate an elastic force in response to the displacement of the housing 22, and a portion of the buffer medium 60 is pressed to flow toward the opening 38 through the groove 42. Specifically, with the piston 24 as a boundary, the damping medium 60 may flow from a first region A1 of the chamber 36 to a second region A2 of the chamber 36 via the groove 42 to generate a damping effect.

Furthermore, as the buffer vehicle 60 flows from the first zone A1 to the second zone A2 of the chamber 36, at least a portion of the buffer vehicle 60 may pass through the passage 62 between the ring 26 and the base 28 and into the groove 42 to flow toward the second zone A2; alternatively, at least a portion of the buffer medium 60 may flow toward the second area a2 through the installation space S and into the groove 42.

As shown in fig. 6, the ring 26 can be used to block other flow paths of the buffer medium 60, for example, the ring 26 can be used to block a gap 64 between the base 28 and the inner wall 40, so that the buffer medium 60 can flow from the first region a1 of the chamber 36 toward the second region a2 as much as possible by means of the groove 42. More specifically, since ring 26 is made of flexible material, ring 26 can be slightly expanded and deformed against base 28 by the pushing pressure of buffer medium 60, so as to plug gap 64 between base 28 and inner wall 40.

As shown in fig. 5 and 7, when the force continues to be applied to the housing 22 in the first direction D1, the elastic member 32 further continues to accumulate the elastic force in response to the displacement of the housing 22, and the buffer medium 60 further flows from the first area a1 to the second area a2 of the chamber 36 via the groove 42 to continue to generate the buffering effect. It should be noted that the grooves 42 are disposed in the same direction as the relative displacement between the housing 22 and the piston 24. For example, the grooves 42 are disposed in a longitudinal direction, and the housing 22 and the piston 24 are displaced relative to each other in the longitudinal direction.

As shown in fig. 8 and 9, when the above-mentioned force in the first direction D1 is released, the housing 22 can be displaced in a second direction D2 in response to the elastic member 32 releasing the elastic force, wherein the second direction D2 is opposite to the first direction D1. During the displacement of the housing 22 in the second direction D2, the buffer medium 60 can flow back from the second region a2 to the first region a1 of the chamber 36 via the groove 42. During such backflow, at least a portion of the buffer medium 60 may pass through the passage 62 between the ring 26 and the base 28, and into the groove 42 toward the first region a 1. The speed of the return flow of the damping medium 60 can be increased by the inclined surface 48 of the recess 46 of the base 28.

As shown in fig. 10, a base 200 of a second embodiment of the present invention is provided. The base 200 has a surface 202, and the surface 202 has at least one rib, such as a first rib 204 and a second rib 206. The first rib 204 and the second rib 206 have a height H relative to the surface 202.

As shown in fig. 11, the surface 202 of the base 200 faces the ring member 26, and the ring member 26 can abut against the first rib 204 and the second rib 206, so that a channel 208 is formed between the ring member 26 and the surface 202 of the base. During the displacement of the housing 22 relative to the piston 24 (or the piston rod 30) in the second direction D2 in response to the elastic force of the elastic member 32, the buffer medium 60 can flow back from the second region a2 of the chamber 36 to the first region a1 via the groove 42. During this backflow, at least a portion of the buffer medium 60 may pass through the channel 208 and enter the groove 42 to flow toward the first area a 1. From this, it is understood that the same contribution is made to the speed of the back flow of the buffer medium 60 when the buffer medium 60 passes through one more route.

As shown in fig. 12, a base 300 according to a third embodiment of the present invention is provided. The base 300 includes a plurality of protrusions 302. These projections 302 form a space between each other as a channel 304. In this embodiment, the positions of the protrusions 302 are symmetrically arranged, but the implementation is not limited.

As shown in fig. 13, the protrusions 302 of the base 300 are used to provide the ring 26 against. During the displacement of the housing 22 relative to the piston 24 (or the piston rod 30) in the second direction D2 in response to the elastic force of the elastic member 32, the buffer medium 60 can flow back from the second region a2 of the chamber 36 to the first region a1 via the groove 42. During this backflow, at least a portion of the buffer medium 60 may flow directly through the channel 304 to the first zone a 1; alternatively, at least a portion of the buffer media 60 may enter the groove 42 to flow toward the first area A1. From this, it is understood that the same contribution is made to the speed of the back flow of the buffer medium 60 when the buffer medium 60 passes through one more route.

As shown in fig. 14, a base 400 according to a fourth embodiment of the present invention is provided. The base 400 has a surface 402, and the surface 402 has at least one recess, here exemplified by a first recess 404 and a second recess 406.

As shown in fig. 15, surface 402 of base 400 faces ring 26. Wherein a channel 408 is formed between the ring 26 and the base 400 by the first recess 404 and the second recess 406. During the displacement of the housing 22 relative to the piston 24 (or the piston rod 30) in the second direction D2 in response to the elastic force of the elastic member 32, the buffer medium 60 can flow back from the second region a2 of the chamber 36 to the first region a1 via the groove 42. During this backflow, at least a portion of the buffer media 60 may pass through the channel 408 and into the groove 42 toward the first region a 1. From this, it is understood that the same contribution is made to the speed of the back flow of the buffer medium 60 when the buffer medium 60 passes through one more route.

It is noted that although in the above embodiments, the base (28, 200, 300, 400) has a protruding or recessed structure to form the channel; in practice, however, it is also possible that the surface of the base (28, 200, 300, 400) facing the ring 26 is plane; and the ring 26 has a convex or concave structure, whereby the passage is also formed between the surface (flat) of the base (28, 200, 300, 400) and the ring 26, all for the purpose of providing a flow of the cushioning medium 60.

As shown in fig. 16, the damping device 20 can be applied to a furniture hinge 66. The furniture hinge 66 includes a first member 68 and a second member 70 pivotally connected to the first member 68. Preferably, the furniture hinge 66 further comprises at least one auxiliary elastic element (not shown) for providing a force to the first member 68 from opening to closing relative to the second member 70 (for brevity, the description is omitted herein). The first member 68 is mountable to a first piece of furniture (e.g., a door); in another aspect, the second member 70 can be mounted to a second piece of furniture (e.g., a cabinet) through a third member 72.

The damping device 20 is mounted to one of the first member 68 and the second member 70. Preferably, the first member 68 is a hinge cup and the second member 70 is a hinge arm, the damping device 20 being mounted within the hinge cup. When the first member 68 is closed relative to the second member 70 in a direction D3 from the open position to the closed position (e.g., end stroke), the piston rod 30 of the damping device 20 can abut against the first member 68 and the housing 22 can abut against the second member 70, so that the housing 22 and the piston 24 can be displaced relative to each other in response to the closed position, thereby providing a damping effect to reduce the force of the first member 68 closing relative to the second member 70. For the principle of the damping device 20 providing the buffering effect, reference may be made to the above embodiments, and for the sake of brevity, the description is not repeated herein.

From the above description, it can be seen that the present invention has the advantages of providing two members with cushioning effect from relative opening to closing.

Although the present invention has been described with reference to the present specific embodiments, it will be recognized by those skilled in the art that the above embodiments are illustrative only, and various equivalent changes and modifications may be made without departing from the spirit of the present invention, and therefore, it is intended to cover in the appended claims all such changes and modifications as fall within the true spirit of the invention.

Claims

1. A damping device comprising a housing and a piston, the housing comprising a chamber filled with a cushioning medium, the piston being arranged in the chamber of the housing, the piston and the housing being longitudinally displaceable relative to each other, characterized in that:

further comprising a base disposed within the chamber of the housing; and

a ring disposed between the piston and the base, a circumferential wall of the ring defining a through-hole;

wherein a channel is formed between the ring and the base to allow the buffer medium to flow;

wherein, a transverse width of the passage is larger than a transverse thickness of the ring wall of the ring piece, and the passage is communicated with the through hole of the ring piece.

2. The damping device of claim 1, wherein the base has a surface facing the ring and having at least one depression forming the passage between the ring and the base.

3. The damper device of claim 2, wherein the at least one recess has a sloped surface that is sloped with respect to the surface.

4. A damper according to claim 3, wherein said ramp extends to the periphery of the base.

5. The damping device of claim 1, wherein the base has a surface facing the ring and at least one rib having a height relative to the surface such that the channel is formed between the ring and the surface of the base.

6. The damping device of claim 1, wherein the base includes a plurality of protrusions for providing abutment of the ring, the protrusions defining the passage therebetween.

7. The damper device of claim 1, wherein the chamber has a groove in an inner wall thereof for providing the flow of the damping medium in the chamber when the housing and the piston are relatively displaced.

8. The damper device of claim 7, wherein the grooves are disposed in the same direction as the direction of relative displacement between the housing and the piston.

9. The damping device of claim 1, wherein the ring is made of a flexible material.

10. The damping device of claim 1, wherein the cushioning medium contains a fluid.

11. The damper device of claim 1, further comprising a piston rod connected to the piston and an elastic member providing an elastic force between the housing and the piston.

12. Damping device according to claim 11, characterized in that the piston rod or the piston is made of a metallic material.

13. A damping device according to claim 11, characterized in that the resilient member is arranged in a chamber of the housing.

14. The damper device of claim 11, wherein the base is mounted to the piston and the base abuts against the resilient member.

15. The damper device of claim 11, wherein the housing further includes an opening communicating with the chamber, the damper device further includes a cover member disposed adjacent the opening of the housing, the piston rod extends through the cover member, the cover member includes a cover body having a space for receiving the sleeve member, a sleeve member, and a sealing ring disposed on the cover body.

16. A furniture hinge, comprising a first member, a second member and a damping device, the second member being pivotally connected to the first member, characterized in that:

the damping device is installed on one of the first component and the second component, and comprises:

a housing including a chamber filled with a buffer medium;

a piston disposed within the chamber of the housing, the piston and the housing being longitudinally displaceable relative to each other;

a piston rod is connected with the piston;

an elastic member providing an elastic force between the housing and the piston;

a base disposed within the chamber of the housing; and

wherein, a transverse width of the channel is larger than a transverse thickness of the ring wall of the ring piece, and the channel is communicated with the through hole of the ring piece;

wherein the ring is made of a flexible material.

17. The furniture hinge according to claim 16, wherein an inner wall of said chamber has a groove, wherein during opening to closing of said first member with respect to said second member, said housing and said piston rod of said damping device are relatively displaced in response to said closing, and wherein said damping medium is able to flow within said chamber via said groove.

18. The furniture hinge according to claim 16, wherein said first member is a hinge cup and said second member is a hinge arm, said damping means being mounted in said hinge cup.

19. The furniture hinge according to claim 16, wherein said base is mounted on said piston and said base abuts against said resilient member.