WO2017147943A1

WO2017147943A1 - Silent hinge

Info

Publication number: WO2017147943A1
Application number: PCT/CN2016/075840
Authority: WO
Inventors: 尹捷
Original assignee: 尹捷
Priority date: 2016-03-04
Filing date: 2016-03-08
Publication date: 2017-09-08
Also published as: CN105673673A

Abstract

A silent hinge, comprising a first arm (3) and a second arm (6) hinged with each other. An elastic sheet (2) is provided on an end of the first arm (3), a circular holding pore (21) is provided on the elastic sheet (2), and an opening (22) extends outwardly from the circular holding pore (21). A rotation shaft (9), which matches the circular holding pore (21) and is inserted into same, is fixed on the second arm (6), and the rotation shaft (9) rotates in two directions within the circular holding pore (21) relative to the first arm (3) so as to respectively open and close the opening (22) of the circular holding pore (21). The silent hinge may be adjusted arbitrarily without noise.

Description

Silent hinge

技术领域 Technical field

BACKGROUND OF THE INVENTION 1. Field of the Invention This invention relates to hinges, and more particularly to a silent hinge that can adjust any angle, has no noise when rotated, and has low material strength requirements.

背景技术 Background technique

The hinge is a tool that connects two parts to rotate at an angle and is used in various furniture and home appliances. For example, the sofa is equipped with a headrest that is attached to the backrest so that it can rotate a plurality of angled hinges. However, such a hinge using the conventional technique has the following problems: First, in the conventional hinge, the swing of the two members is restricted by the engagement of the claw member and the gear. Since the force between the two components is very large, this requires that the teeth of the claw member and the gear are large, and the pitch of the gear is large. Therefore, while the multiple of the angular pitch is adjusted, the hinge cannot be adjusted at a slight angle; at the same time, the teeth of the claw member and the gear are the main force-receiving members, and when the force is too large, the claw member may be broken or the teeth of the gear may be Breaking causes irreversible damage to the product, which requires high strength of the claw members and gears; the claw members move on the gears, which also causes irritating noise.

发明内容 Summary of the invention

In order to solve the above problems, an object of the present invention is to provide a silent hinge capable of adjusting any angle, no noise when rotating, and low material strength requirement. .

The present invention is achieved by the following technical measures, a silent hinge, including a first arm and a second arm that are hinged to each other, one end of the first arm is provided with a spring piece, and the elastic piece is provided with a circular holding hole, An annular opening extends outwardly from the opening, and a rotating shaft is fixed on the second arm, and the rotating shaft is matched and inserted into the circular engaging hole, and the rotating shaft rotates in a direction relative to the first arm in the circular holding hole. The opening of the shape-receiving hole is opened. When the rotating shaft rotates in the other direction with respect to the first arm in the circular merging hole, the opening of the circular merging hole is closed to lock the rotating shaft.

As a preferred way, a plurality of holes are formed in the opening of the elastic piece, and the first arm is provided with an arcuate notch projected in one end of the strip hole, and the strip hole is slidably disposed with a clutch shaft, and the strip hole is The distance between the arcuate notches is smaller than the diameter of the clutch shaft, and when the clutch shaft is caught between the strip holes and the arcuate notches, the opening of the circular cooperating hole is elastically opened, so that the rotating shaft is in the circular matching hole with respect to the first arm. Free rotation inside.

As a preferred way, The second arm is provided with two protrusions, and the first arm rotates to a limit position relative to the second arm, wherein the first protrusion transfers the clutch shaft between the strip hole and the curved notch, When the first arm rotates relative to the second arm to another limit, the second protrusion disengages the clutch shaft from between the strip hole and the arcuate notch to the other end of the strip hole.

As a preferred embodiment, a clutch plate is fixed on the rotating shaft, and the two protrusions are formed by extending from the side of the clutch plate.

As a preferred way, a sliding slot is disposed on the second arm, a fixing member is slidably disposed on the sliding slot, and a plurality of links hinged to each other are disposed between the fixing member and the first arm, and the second arm is opposite to the first arm. When the arm rotates, the fixing member slides up and down in the sliding groove relative to the second arm by the chain drive.

As a preferred way, a first chain is hinged on the first arm, a middle end of the second chain is hinged at the other end of the first chain, and one end of the second chain is hinged to one end of the third chain. The other end of the second link is hinged to the second arm, and the other end of the third link is hinged to the fixing member.

In a preferred manner, the first arm articulates the first link through an extended arm of a spotted piece.

As a preferred way, a first connecting hole is disposed at a middle of one end of the first arm, the first connecting hole is slidably hinged with the elastic piece, and at least one second connecting hole is further disposed at one end of the first arm, the second connecting hole and the elastic piece The hinge is movable, and at least one of the second connecting hole and the connecting hole of the elastic piece is larger than the hinge shaft.

As a preferred manner, a groove is formed in the middle of one end of the second arm, and the elastic piece is inserted into the groove.

As a preferred manner, a middle end of the second arm forms a boring head, and the elastic piece is clamped on two sides of the hoe.

The invention sets the first component at the time of use On the first arm, the second member is disposed on the second arm, and the first member is rotated in the adjustment direction (the rotation direction is to open the opening of the circular engagement hole) The first arm rotates relative to the second arm, and the engagement hole is freely rotatable relative to the second arm about the rotation axis, thereby adjusting the first component and The angle between the second members, when turned to the desired angle, causes the opening of the circular engagement hole to close and lock the rotation shaft due to the reverse rotation of the first arm, thereby ensuring that the angle at the time of use remains unchanged. Due to the invention The combination of the elastic piece with the opening and the rotating shaft enables the adjustment direction to perform the infinite rotation and the other direction to lock the rotating shaft, thereby making the invention In the process of use, it has the advantages of being able to adjust any angle and no noise when rotating. At the same time, since the adjustment structure is the contact of the surface, the material strength requirement is low, and irreversible damage is not generated when used.

附图说明 DRAWINGS

FIG. 1 is a schematic structural diagram of adjusting an initial initial position according to an embodiment of the present invention.

FIG. 2 is a schematic structural diagram of adjusting to the highest position according to an embodiment of the present invention.

FIG. 3 is a schematic structural view of the clutch shaft being inserted between the strip hole and the arcuate notch according to an embodiment of the present invention.

FIG. 4 is a schematic structural diagram of adjusting an initial initial position when three chain pieces are mounted according to an embodiment of the present invention.

FIG. 5 is a schematic structural view of the clutch shaft being inserted between the strip hole and the curved notch when three pieces of the chain are mounted according to an embodiment of the present invention.

FIG. 6 is an exploded perspective view showing three pieces of a link installed in an embodiment of the present invention.

具体实施方式 detailed description

The present invention will be further described in detail below with reference to the embodiments and with reference to the accompanying drawings.

A silent hinge of this embodiment, please refer to FIG. 1 to FIG. The first arm 3 and the second arm 6 are hingedly connected to each other. One end of the first arm 3 is provided with a spring piece 2, and the elastic piece 2 is provided with a circular engagement hole 21, and the circular engagement hole 21 extends outward. An opening 22 is defined, and a rotating shaft 9 is fixed to the second arm 6. The rotating shaft 9 is matched and inserted into the circular engaging hole 21, and the rotating shaft 9 is rotated in a direction relative to the first arm 3 in the circular engaging hole 21. The opening 22 of the circular engagement hole 21 is opened, and when the rotation shaft 9 is rotated in the other direction with respect to the first arm 3 in the circular engagement hole 21, the opening 22 of the circular engagement hole is closed to lock the rotation shaft 9.

Set the first part when using this silent hinge On the first arm 3, the second member is disposed on the second arm 6, and the first member is rotated in the adjustment direction (the rotation direction is to open the opening 22 of the circular engagement hole 21) so that the first arm 3 is opposite to the second The arm 6 rotates when it rotates When the direction of the first member is the direction in which the opening 22 of the circular engagement hole 21 is opened, the engagement hole 21 is freely rotatable about the rotation shaft 9 with respect to the second arm 6, thereby adjusting the first member and The angle between the second members, when turned to the desired angle, causes the opening 22 of the circular merging hole to close and lock the rotating shaft 9 due to the reverse rotation of the first arm 3, thereby ensuring that the angle at the time of use remains unchanged. Since the hinge uses the combination of the elastic piece 2 with the opening 22 and the rotating shaft 9, the adjustment direction can be infinitely rotated, and the other direction locks the rotating shaft 9, so that the product has the advantage of being able to adjust any angle and no noise when rotating during use. At the same time, since the adjustment structure is a surface contact, the material strength requirement is low, and irreversible damage is not generated when used.

For the silent hinge of the embodiment, please refer to FIG. 1 to FIG. 6 , and specifically, based on the foregoing technical solutions, The elastic piece 2 is provided with an opening 22 at the opening 22, which is a shape-shaped groove 23 in the embodiment. The first arm 3 is provided with an arc-shaped notch 31 projected in one end of the strip-shaped groove 23, and the strip-shaped groove 23 The inner slide is provided with a clutch shaft 4, and the distance between the strip groove 23 and the curved notch 31 is smaller than the diameter of the clutch shaft 4, and the clutch shaft 4 is rounded when it is caught between the strip groove 23 and the curved notch 31. The opening 22 of the merging hole 21 is elastically opened so that the rotating shaft 9 is freely rotatable relative to the first arm 3 in the circular merging hole 21. When the product is adjusted to the limit position, the circular abutment hole 21 is enlarged by the rotation shaft 9 (refer to FIGS. 2 and 5), so that the first arm 3 does not lock when rotated in the opposite direction to the adjustment direction, and can be turned back. The initial position (refer to Figures 1 and 4) is readjusted.

For the silent hinge of the embodiment, please refer to FIG. 1 to FIG. 6 , and specifically, based on the foregoing technical solutions, The second arm 6 is provided with two protrusions. In the embodiment, the two protrusions are formed by extending from the side of the clutch piece 1 fixed on the rotating shaft 9, and the first arm 3 is rotated to the second arm 6 to When the position is limited, referring to FIG. 2 and FIG. 5, the first protrusion 11 pushes the clutch shaft 4 between the strip groove 23 and the curved notch 31, thereby expanding the circular engagement hole 21 so that the first arm 3 is in contact with When the adjustment direction is reversely rotated, it will not lock, but can be returned to the initial position for re-adjustment; when returning to the initial position, referring to FIGS. 1 and 4, the first arm 3 is rotated relative to the second arm 6 to another limit. In this case, the second projection 12 just disengages the clutch shaft 4 from between the strip groove 23 and the curved notch 31 to the inner end of the strip groove 23, so that the product can be normally adjusted.

For the silent hinge of the embodiment, please refer to FIG. 4 to FIG. 6 , and specifically, based on the foregoing technical solutions, The second arm 6 is provided with a sliding slot 61. The sliding slot 61 is slidably provided with a fixing member 5. The first arm 3 is hinged with a first chain piece 73. The other end of the first chain piece 73 is hinged with a first end. An intermediate end of the second chain piece 72, one end of the second chain piece 72 is hinged to one end of the third chain piece 71, and the other end of the second chain piece 72 is hinged on the second arm 6, the third chain The other end of the piece 71 is hinged to the fixing member 5. In this way, when the first arm 3 rotates relative to the second arm 6, the second arm 6 slides up and down relative to the fixing member 5 in the sliding slot 61 by the chain drive to drive the connection to the first arm 3. The first member moves up and down. This structure raises the height of the two components when the angle of the two components is increased, thereby preventing the two components from being pressed and deformed, and the angle of the two components is reduced, thereby avoiding a gap between the two components.

For the silent hinge of the embodiment, please refer to FIG. 4 to FIG. 6 , and specifically, based on the foregoing technical solutions, The first arm 3 articulates the first link 73 through the extension arm of a spot piece 8.

For the silent hinge of the embodiment, please refer to FIG. 1 to FIG. 6 , and specifically, based on the foregoing technical solutions, A first connecting hole 33 is disposed in a middle portion of the first arm 3. The first connecting hole 33 is slidably hinged to the elastic piece 2, and the first arm 3 is further provided with at least one second connecting hole 32. Two second connecting holes 32 are symmetrically disposed on two sides of the first connecting hole 33. The second connecting hole 32 is movably hinged with the elastic piece 2, and the second connecting hole 32 and the connecting hole of the elastic piece 2 are in the middle. At least one of them is larger than the hinge shaft, because when the circular engagement hole 21 of the elastic piece 2 is enlarged or contracted, it affects the relative positions of the components connected thereto (such as the first arm 3, the rotating shaft 9, etc.), and the first connecting hole is utilized. 33 is slidably hinged with the elastic piece 2, so that the deformation amount can be effectively digested, the deformation stress is prevented from damaging the product, and the excessively large second connecting hole 32 and the elastic piece 2 are hinged to define a range of variation.

The silent hinge of the embodiment may be specifically based on the foregoing technical solutions. A groove is formed in the middle of one end of the second arm 6, and the elastic piece 3 is inserted into the groove. Thereby, the elastic piece 3 is at the center position to balance the force.

In the silent hinge of another embodiment, specifically, based on the foregoing technical solutions, A hoe is formed in the middle of one end of the second arm, and the elastic piece is clamped on two sides of the hoe. The main functions of the present invention can also be implemented.

The above is a description of the silent hinge of the present invention for helping to understand the present invention. However, the embodiments of the present invention are not limited by the above-described embodiments, and any changes, modifications, substitutions, combinations, and simplifications that are made without departing from the principles of the present invention should be equivalently substituted, and are included in the protection of the present invention. Within the scope.

Claims

A silent hinge, comprising: a first arm and a second arm that are hinged to each other, wherein one end of the first arm is provided with a spring piece, and the elastic piece is provided with a circular merging hole, and the circular merging hole is oriented An opening is extended, and a rotating shaft is fixed on the second arm, and the rotating shaft is matched and inserted into the circular engaging hole, and the rotating shaft is opened to the circular opening when the rotating shaft rotates in a direction relative to the first arm in the circular holding hole. When the rotating shaft rotates in the other direction with respect to the first arm in the circular merging hole, the opening of the circular merging hole is closed to lock the rotating shaft.
The silent hinge according to claim 1, wherein the elastic piece is provided with an opening at the opening, and the first arm is provided with an arcuate notch projected in one end of the strip hole, the strip shape The sliding hole is provided with a clutch shaft, the distance between the strip hole and the arcuate notch is smaller than the diameter of the clutch shaft, and the opening of the circular hole is made when the clutch shaft is caught between the strip hole and the curved notch. The elastic opening is opened so that the rotating shaft is free to rotate in the circular holding hole with respect to the first arm.
The silent hinge according to claim 2, wherein the second arm is provided with two protrusions, and the first arm rotates to a limit position with respect to the second arm, wherein the first protrusion will be the clutch shaft Between the strip hole and the curved notch, when the first arm rotates to the other limit relative to the second arm, wherein the second protrusion transfers the clutch shaft from between the strip hole and the arc gap to The other end of the strip hole.
The silent hinge according to claim 2, wherein a clutch plate is fixed on the rotating shaft, and the two protrusions are formed by extending from sides of the clutch piece.
The silent hinge according to any one of claims 1 to 4, wherein a sliding groove is disposed on the second arm, and a fixing member is slidably disposed on the sliding groove, and the fixing member and the first arm are arranged. A plurality of links hinged to each other are disposed, and when the second arm rotates relative to the first arm, the fixing member slides up and down in the sliding slot relative to the second arm by the chain drive.
The silent hinge according to claim 5, wherein the first arm is hinged with a first chain, and the other end of the first chain is hinged with a middle end of the second chain, the second One end of the chain is hinged to one end of the third chain, the other end of the second chain is hinged to the second arm, and the other end of the third chain is hinged to the fixing member.
The silent hinge according to claim 6, wherein said first arm hinges the first link by an extended arm of a dot piece.
The silent hinge according to claim 1, wherein a first connecting hole is disposed in a middle portion of one end of the first arm, the first connecting hole is slidably hinged with the elastic piece, and at least one end of the first arm is further provided with a second connecting hole, the second connecting hole is movably hinged with the elastic piece, and at least one of the connecting hole of the second connecting hole and the elastic piece is larger than the hinge shaft.
The silent hinge according to claim 1, wherein a groove is formed in the middle of one end of the second arm, and the elastic piece is inserted into the groove.
The silent hinge according to claim 1, wherein a middle end of the second arm forms a boring head, and the elastic piece is clamped on two sides of the hoe.