EP4764130A1

EP4764130A1 - Hinge having adjustable buffer

Info

Publication number: EP4764130A1
Application number: EP25846721.6A
Authority: EP
Inventors: Xian Poh ANG
Original assignee: Foshan Tiansi Hardware Co Ltd
Current assignee: Foshan Tiansi Hardware Co Ltd
Priority date: 2024-07-31
Filing date: 2025-06-09
Publication date: 2026-06-24
Also published as: WO2026026229A1; CN222863157U

Abstract

Disclosed in the present application is a hinge having an adjustable buffer, the hinge comprising a hinge cup, a hinge body, a hinge arm, a buffer, a hinge shaft, a mounting base, a buffer cylinder, a pushing member, a first limiting member, and a second limiting member. When the second limiting member is toggled to working position I, a limiting hook portion blocks in the front of an extruding hook block, shortening the distance by which a pushing portion pushes the first limiting member to move, and when the hinge is folded, the stroke of the buffer cylinder compressed by the first limiting member is reduced, reducing the buffering force of the hinge. When the second limiting member is toggled to working position II, the limiting hook portion moves to the rear of a clearance position, and when the hinge is folded, the distance by which the pushing portion pushes the first limiting member to move returns to the original state, such that the stroke of the buffer cylinder compressed by the first limiting member is increased, increasing the buffering force of the hinge.

Description

TECHNICAL FIELD

The present disclosure relates to the technical field of furniture hardware, and in particular, to a hinge with adjustable damping.

BACKGROUND

Hinges are traditional furniture hardware components used to connect a cabinet body and a cabinet door. Existing damping hinges have a fixed damping force which cannot be adjusted according to actual usage. However, customers' home environments are complex, and hinges with fixed damping force may not be suitable for all users. If the damping force of the hinge is too small, a heavy door may produce an impact noise when closing. If the damping force is too large, the closing process becomes excessively slow. Therefore, there is an urgent need to further improve the existing hinge structure so as to accommodate use in a variety of settings.

SUMMARY

The present disclosure aims to solve at least one of the technical problems in the existing technologies. Therefore, in accordance with an embodiment of the present disclosure, provided is a hinge with adjustable damping, which includes a hinge cup, a hinge body, a hinge arm and a pivot shaft. One end of the hinge arm is connected to the hinge body through the pivot shaft, and another end of the hinge arm is rotationally connected to the hinge cup. The hinge further includes a damping cylinder, a pusher, a first limiting member and a second limiting member. The damping cylinder is mounted on the hinge body. The rear end of the pusher is rotationally connected to the hinge cup. The first limiting member is configured to compress the damping cylinder, and a top of the first limiting member is sequentially provided with a protruding hook block and a clearance position. The second limiting member includes a limiting hook portion. The second limiting member has a first operating position and a second operating position. When the hinge is folded, the first limiting member is pushed backwards by the pusher, when the second limiting member is shifted to the first operating position, the limiting hook portion hooks the protruding hook block; and when the second limiting member is shifted to the second operating position, during movement of the first limiting member, the clearance position passes below the limiting hook portion.
The present disclosure at least has the following beneficial effects.
When a reduction in the hinge's damping force is required, the second limiting member is shifted to the first operating position, where it engages with the first limiting member. In this state, when the hinge is folded, the distance over which the pushing portions push the first limiting member becomes shorter, thereby reducing the stroke of the damping cylinder compressed by the first limiting member and consequently decreasing the damping force of the hinge. When an increase in the hinge's damping force is required, the second limiting member is shifted to the second operating position, where it disengages from the first limiting member. In this state, when the hinge is folded, the distance over which the pushing portions push the first limiting member returns to its original value, thereby increasing the stroke of the damping cylinder compressed by the first limiting member and consequently increasing the damping force of the hinge.
In accordance with some embodiments of the present disclosure, a mounting base is further included. The mounting base is mounted in the hinge body, a front portion of the mounting base is provided with a port, the damping cylinder is mounted in the mounting base, the damping cylinder faces the port, the first limiting member is mounted at the port, and the front portion of the pusher is rotationally mounted on the mounting base.
In accordance with some embodiments of the present disclosure, a left side plate and a right side plate of the mounting base are each provided with a sliding block, the first limiting member includes two side plates, each of the two side plates is provided with a sliding groove arranged laterally, and when the first limiting member moves relative to the mounting base, the sliding block slides in the respective sliding groove.
In accordance with some embodiments of the present disclosure, the first limiting member includes an end plate and two side plates. The end plate is located in front of the port, a piston rod abuts against the end plate, the two side plates are located on a left side and a right side of the mounting base, respectively, the pusher is provided with pushing portions, and the side plates are pushed by the respective pushing portions.
In accordance with some embodiments of the present disclosure, each of the two side plates is bent to define a shifting plate, and the shifting plate is pushed by the respective pushing portion.
In accordance with some embodiments of the present disclosure, the first limiting member is made of plastic, and the second limiting member is made of metal.
In accordance with some embodiments of the present disclosure, the pusher includes a first side plate, a second side plate and a tail plate. The first side plate and the second side plate are located on the left side and the right side of the mounting base, respectively. Ends of the first side plate and the second side plate are the pushing portions, and the tail plate is rotationally connected to the hinge cup.
In accordance with some embodiments of the present disclosure, the pusher includes a first side plate and a second side plate. Ends of the first side plate and the second side plate are the pushing portions, the first side plate and the second side plate are located on the left side and the right side of the mounting base, respectively, a rotating shaft is connected between the first side plate and the second side plate and rotationally mounted on the mounting base, and a roller pin is rotationally mounted on the second side plate and is fixed to the mounting base.
In accordance with some embodiments of the present disclosure, a U-shaped shaft is inserted in the hinge cup, and includes a first shaft and a second shaft, the first shaft is configured to rotationally connect the hinge arm to the hinge cup, and the second shaft is configured to rotationally connect the tail plate to the hinge cup.
In accordance with some embodiments of the present disclosure, a top of the mounting base extends leftwards to form a first top plate, a first slideway is formed in the first top plate, and a first groove is formed in the first slideway. The top of the mounting base extends rightwards to form a second top plate, a second slideway is formed in the second top plate, and a second groove is formed in the second slideway. The second limiting member includes a sliding plate, the sliding plate extends forwards out of the limiting hook portion, and slides in the first slideway and the second slideway, a left side of a bottom of the sliding plate is provided with a first bump, a right side of the bottom of the sliding plate is provided with a second bump, and a top face of the sliding plate is provided with a shifting block. When the second limiting member is shifted to the first operating position, the first bump enters the first groove, causing the second limiting member to stop at the first operating position. When the second limiting member is shifted to the second operating position, the second bump enters the second groove, causing the second limiting member to stop at the second operating position.
Additional aspects and advantages of the present disclosure will be partially set forth in the description which follows, and a part will be obvious from the following description, or may be learned by practice of the present disclosure.

BRIEF DESCRIPTION OF DRAWINGS

The above and/or additional aspects and advantages of the present disclosure will become apparent and understandable from the description of the embodiment in conjunction with the following drawings, wherein:

FIG. 1 is an overall schematic diagram of an embodiment of the present disclosure in the usage state;
FIG. 2 is an exploded view of an embodiment of the present disclosure in the usage state;
FIG. 3 is a schematic diagram of a hinge in an unfolded state at a first operating position according to an embodiment of the present disclosure;
FIG. 4 is a schematic diagram of a hinge in an unfolded state at a second operating position according to an embodiment of the present disclosure;
FIG. 5 is a schematic diagram of a hinge in a folded state at a first operating position according to an embodiment of the present disclosure;
FIG. 6 is a schematic diagram of a hinge in a folded state at a second operating position according to an embodiment of the present disclosure;
FIG. 7 is an exploded view of a mounting base, a damping cylinder, a pusher, a first limiting member and a second limiting member according to an embodiment of the present disclosure;
FIG. 8 is a first schematic diagram of the combined state of the mounting base, the damping cylinder, the pusher, the first limiting member and the second limiting member according to an embodiment of the present disclosure;
FIG. 9 is a second schematic diagram of the combined state of the mounting base, the damping cylinder, the pusher, the first limiting member and the second limiting member according to an embodiment of the present disclosure;
FIG. 10 is a schematic diagram of the second limiting member in the first operating position combined with the mounting base and the first limiting member according to an embodiment of the present disclosure;
FIG. 11 is a cross-section schematic diagram of the second limiting member in the first operating position combined with the mounting base and the first limiting member according to an embodiment of the present disclosure;
FIG. 12 is a schematic diagram of the second limiting member in the second operating position combined with the mounting base and the first limiting member according to an embodiment of the present disclosure;
FIG. 13 is a cross-section schematic diagram of the second limiting member in the second operating position combined with the mounting base and the first limiting member according to an embodiment of the present disclosure;
FIG. 14 is a schematic diagram of the second limiting member in the first operating position before the damping cylinder is compressed;
FIG. 15 is a schematic diagram of the second limiting member in the first operating position after the damping cylinder is compressed;
FIG. 16 is a schematic diagram of the second limiting member in the second operating position before the damping cylinder is compressed;
FIG. 17 is a schematic diagram of the second limiting member in the second operating position after the damping cylinder is compressed; and
FIG. 18 is a schematic diagram of a U-shaped shaft in an installation state according to an embodiment of the present disclosure.

DETAILED DESCRIPTION

The embodiments of the present disclosure are described in detail below, and examples of the embodiments are shown in the accompanying drawings, where the same or similar reference numerals represent the same or similar elements or elements with the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to explain the present disclosure, instead of being construed as limiting the present disclosure.
In the description of the present disclosure, it should be understood that descriptions involving orientation, such as the orientations or positional relationships indicated by terms such as "up", "down", "front", "rear", "left" and "right" are based on the orientations or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the present disclosure and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, they cannot be understood as limitations on the present disclosure.
In the description of the present disclosure, "a plurality of" means two or more, and "greater than", "less than", "exceeding", etc. are understood to exclude the specified number. If the terms "first" and "second" are described, they are only used to distinguish the technical features, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features or implicitly indicating the order of the indicated technical features.
In the description of the present disclosure, unless otherwise expressly defined, terms such as "arrange," "installation," and "connection" should be interpreted broadly, and those of ordinary skills in the art can reasonably determine the specific meaning of the above terms in the present disclosure in conjunction with the specific content of the technical solution.
Referring to FIGS. 1-7, a hinge with adjustable damping includes a hinge cup 101, a hinge body 102, a hinge arm 103 and a pivot shaft 104. One end of the hinge arm 103 is connected to the hinge body 102 through the pivot shaft 104, and another end of the hinge arm 103 is rotationally connected to the hinge cup 101. The hinge further includes a damping cylinder 200, a pusher 300, a first limiting member 400 and a second limiting member 500. The damping cylinder 200 is mounted on the hinge body 102. The rear end of the pusher 300 is rotationally connected to the hinge cup 101. The first limiting member 400 is configured to compress the damping cylinder 200, and the top of the first limiting member 400 is sequentially provided with a protruding hook block 401 and a clearance position 402. The second limiting member 500 includes a limiting hook portion 520. The second limiting member 500 has a first operating position and a second operating position. When the hinge is folded, the first limiting member 400 is pushed backwards by the pusher 300, when the second limiting member 500 is shifted to the first operating position, the limiting hook portion 520 hooks the protruding hook block 401. When the second limiting member 500 is shifted to the second operating position, during movement of the first limiting member 400, the clearance position 402 passes below the limiting hook portion 520.
Referring to FIGS. 3-6 and FIGS. 14-17, the second limiting member 500 has a first operating position and a second operating position.
When the second limiting member 500 is shifted to the first operating position, the limiting hook portion 520 hooks the protruding hook block 401, which shortens the distance that the pusher 300 pushes the first limiting member 400 to move. When the hinge is folded, the stroke of the damping cylinder 200 compressed by the first limiting member 400 is reduced, which reduces the damping force of the hinge.
When the second limiting member 500 is shifted to the second operating position, the limiting hook portion 520 moves to the rear of a clearance position 402. When the hinge is folded, during the process in which the pusher 300 pushes the first limiting member 400 to move, the clearance position 402 passes below the limiting hook portion 520, causing the distance of the first limiting member to return to the original state, which increases the stroke of the damping cylinder 200 compressed by the first limiting member 400, thereby increasing the damping force of the hinge.
Referring to FIGS. 1-7, a mounting base 100 is further included. The mounting base 100 is mounted in the hinge body 102, the front portion of the mounting base 100 is provided with a port 110, the damping cylinder 200 is mounted in the mounting base 100, the damping cylinder 200 faces the port 110, the first limiting member 400 is mounted at the port 110, and the front portion of the pusher 300 is rotationally mounted on the mounting base 100.
Referring to FIGS. 7 and 9, a left side plate and a right side plate of the mounting base 100 are each provided with a sliding block 120. The first limiting member 400 includes two side plates 420. The two side plates 420 clamp the mounting base 100 and are each provided with a sliding groove 421 arranged laterally. The sliding distance of the sliding blocks 120 in the sliding grooves 421 corresponds to the stroke of the first limiting member 400. Meanwhile, by engaging the sliding blocks 120 within the sliding grooves 421, a tight connection between the mounting base 100 and the first limiting member 400 can be achieved.
Referring to FIG. 7 and FIGS. 14-17, the pusher 300 is provided with pushing portions 301. The first limiting member 400 includes an end plate 410 and two side plates 420, and the end plate 410 is located in front of the port 110. The damping cylinder 200 includes a piston rod 210 abutting against the end plate 410. The two side plates 420 are located on the left side and right side of the mounting base 100, respectively.
The piston rod 210 pushes the end plate 410, causing the first limiting member 400 to move forwards, or the end plate 410 compresses the piston rod 210 when the side plates 420 are pushed by the pushing portions 301.
Referring to FIGS. 5-7, in order to facilitate the pushing portions 301 to push the side plates 420, each of the two side plates 420 is bent to define a shifting plate 422 pushed by the respective pushing portion 301.
In this embodiment, the first limiting member 400 is made of plastic, and the second limiting member 500 is made of metal. When the second limiting member 500 is shifted to the first operating position, the first limiting member 400 moves towards the second limiting member 500, the protruding hook block 401 passes through the limiting hook portion 520, the limiting hook portion 520 may deform and be lifted upward, such that the protruding hook block 401 is capable of passing through the limiting hook portion 520 and moving to the rear of the limiting hook portion 520 to be hooked by the limiting hook portion 520.
Referring to FIG. 7, the pusher 300 includes a first side plate 310, a second side plate 320 and a tail plate 330. The first side plate 310 and the second side plate 320 are located on the left side and right side of the mounting base 100 respectively. The ends of the first side plate 310 and the second side plate 320 are the pushing portions 301.The tail plate 330 is rotationally connected to the hinge cup 101.
Referring to FIG. 8 and FIG. 9, the pusher 300 includes a first side plate 310 and a second side plate 320. The first side plate 310 and the second side plate 320 are located on the left side and right side of the mounting base 100 respectively, and a rotating shaft 340 is connected between the first side plate 310 and the second side plate 320 and rotationally mounted on the mounting base 100. A roller pin 350 is rotationally mounted on the second side plate 320 and is fixed to the mounting base 100.
Referring to FIG. 18, a U-shaped shaft 600 is inserted in the hinge cup 101 and includes a first shaft 610 and a second shaft 620. The first shaft 610 is configured to rotationally connect the hinge arm 103 to the hinge cup 101, and the second shaft 620 is configured to rotationally connect the tail plate 330 to the hinge cup 101, such that the hinge arm 103 and the tail plate 330 rotate simultaneously.
Referring to FIGS. 10-13, the top of the mounting base 100 extends leftwards to form a first top plate 130, a first slideway 131 is formed in the first top plate 130, and a first groove 132 is formed in the first slideway 131. The top of the mounting base 100 extends rightwards to form a second top plate 140, a second slideway 141 is formed in the second top plate 140, and a second groove 142 is formed in the second slideway 141. The second limiting member 500 includes a sliding plate 510. The sliding plate 510 extends forwards out of the limiting hook portion 520, and slides in the first slideway 131 and the second slideway 141, the left side of the bottom of the sliding plate 510 is provided with a first bump 511, and the right side of the bottom of the sliding plate 510 is provided with a second bump 512.
During use, when the second limiting member 500 is shifted to the first operating position, the first bump 511 enters the first groove 132, causing the second limiting member 500 to stop at the first operating position. When the second limiting member 500 is shifted to the second operating position, the second bump 512 enters the second groove 142, causing the second limiting member 500 to stop at the second operating position. Meanwhile, when the first bump 511 enters the first groove 132 and the second bump 512 enters the second groove 142, a corresponding tactile feedback is generated, allowing a user to perceive that the second limiting member 500 has been shifted into an operating position.
Referring to FIG. 7, a shifting block 530 is arranged on the top face of the sliding plate 510, to facilitate shifting the sliding plate 510, such that the sliding plate 510 displaces.
In the description of this specification, references to terms such as "some embodiments" or "as one might imagine" refer to specific features, structures, materials, or characteristics described in connection with that embodiment or example that are included in at least one embodiment or example of the present disclosure. In this specification, the illustrative expressions of the terms used above do not necessarily refer to the same embodiments or examples. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.
The embodiments of the present disclosure have been described in detail above with reference to the accompanying drawings. However, the present disclosure is not limited to the above embodiments. Within the scope of knowledge possessed by those of ordinary skills in the art, various changes can be made without departing from the gist of the present disclosure.

Claims

A hinge with adjustable damping, comprising a hinge cup (101), a hinge body (102), a hinge arm (103) and a pivot shaft (104), wherein one end of the hinge arm (103) is connected to the hinge body (102) through the pivot shaft (104), and another end of the hinge arm (103) is rotationally connected to the hinge cup (101); wherein the hinge further comprises:
a damping cylinder (200) mounted on the hinge body (102);

a pusher (300) rotationally connected to the hinge cup (101) at a rear end of the pusher (300);

a first limiting member (400) configured to compress the damping cylinder (200), wherein a top of the first limiting member (400) is sequentially provided with a protruding hook block (401) and a clearance position (402); and

a second limiting member (500) comprising a limiting hook portion (520), wherein the second limiting member (500) has a first operating position and a second operating position, when the hinge is folded, the first limiting member (400) is pushed backwards by the pusher (300), and when the second limiting member (500) is shifted to the first operating position, the limiting hook portion (520) hooks the protruding hook block (401); and when the second limiting member (500) is shifted to the second operating position, during movement of the first limiting member (400), the clearance position (402) passes below the limiting hook portion (520).
The hinge with adjustable damping according to claim 1, further comprising a mounting base (100), wherein the mounting base (100) is mounted in the hinge body (102), a front portion of the mounting base (100) is provided with a port (110), the damping cylinder (200) is mounted in the mounting base (100), the damping cylinder (200) faces the port (110), the first limiting member (400) is mounted at the port (110), and a front portion of the pusher (300) is rotationally mounted on the mounting base (100).
The hinge with adjustable damping according to claim 2, wherein a left side plate and a right side plate of the mounting base (100) are each provided with a sliding block (120), the first limiting member (400) comprises two side plates (420), each of the two side plates (420) is provided with a sliding groove (421) arranged laterally, and when the first limiting member (400) moves relative to the mounting base (100), the sliding block (120) slides in the respective sliding groove (421).
The hinge with adjustable damping according to claim 2, wherein the first limiting member (400) comprises an end plate (410) and two side plates (420), the end plate (410) is located in front of the port (110), the damping cylinder (200) comprises a piston rod (210) abutting against the end plate (410), the two side plates (420) are located on a left side and a right side of the mounting base (100), respectively, the pusher (300) is provided with pushing portions (301), and the side plates (420) are pushed by the respective pushing portions (301).
The hinge with adjustable damping according to claim 4, wherein each of the two side plates (420) is bent to define a shifting plate (422), and the shifting plate (422) is pushed by the respective pushing portion (301).
The hinge with adjustable damping according to claim 1, wherein the first limiting member (400) is made of plastic, and the second limiting member (500) is made of metal.
The hinge with adjustable damping according to claim 4, wherein the pusher (300) comprises a first side plate (310), a second side plate (320) and a tail plate (330), the first side plate (310) and the second side plate (320) are located on the left side and the right side of the mounting base (100), respectively; ends of the first side plate (310) and the second side plate (320) are the pushing portions (301), and the tail plate (330) is rotationally connected to the hinge cup (101).
The hinge with adjustable damping according to claim 4, wherein the pusher (300) comprises a first side plate (310) and a second side plate (320), ends of the first side plate (310) and the second side plate (320) are the pushing portions (301), the first side plate (310) and the second side plate (320) are located on the left side and the right side of the mounting base (100), respectively, a rotating shaft (340) is connected between the first side plate (310) and the second side plate (320) and rotationally mounted on the mounting base (100), and a roller pin (350) is rotationally mounted on the second side plate (320) and is fixed to the mounting base (100).
The hinge with adjustable damping according to claim 7, wherein a U-shaped shaft (600) is inserted in the hinge cup (101), and comprises a first shaft (610) and a second shaft (620), the first shaft (610) is configured to rotationally connect the hinge arm (103) to the hinge cup (101), and the second shaft (620) is configured to rotationally connect the tail plate (330) to the hinge cup (101).
The hinge with adjustable damping according to claim 2, wherein a top of the mounting base (100) extends leftwards to form a first top plate (130), a first slideway (131) is formed in the first top plate (130), and a first groove (132) is formed in the first slideway (131);
the top of the mounting base (100) extends rightwards to form a second top plate (140), a second slideway (141) is formed in the second top plate (140), and a second groove (142) is formed in the second slideway (141);

the second limiting member (500) comprises a sliding plate (510), the sliding plate (510) extends forwards out of the limiting hook portion (520), and slides in the first slideway (131) and the second slideway (141), a left side of a bottom of the sliding plate (510) is provided with a first bump (511), a right side of the bottom of the sliding plate (510) is provided with a second bump (512), and a top face of the sliding plate (510) is provided with a shifting block (530); and

when the second limiting member (500) is shifted to the first operating position, the first bump (511) enters the first groove (132), causing the second limiting member (500) to stop at the first operating position; when the second limiting member (500) is shifted to the second operating position, the second bump (512) enters the second groove (142), causing the second limiting member to stop at the second operating position.