KR101896674B1 - Closer with allowable free joint structure of damping device and torsion device - Google Patents

Abstract

The present invention relates to a closer including a damping device providing a damping force for adjusting a speed of closing a door, and a torsion device accumulated with elastic energy by opening force of the door and receiving the damping force from the damping device, in which the damping device and the torsion device are movably coupled in a width direction. The closer has a free joint structure of the damping device and the torsion device. According to the present invention, a certain freedom is allowed in a connection part between the damping device and the torsion device such that the connection part between the damping device and the torsion device or each of the damping device and the torsion device are prevented from being damaged due to eccentric compressing force or stress concentration, thereby capable of improving durability and credibility of operation.

Description

Closer with allowable free joint structure of damping device and torsion device.

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a closure having a damping device and a torsion device, and more particularly to a closure having a damping device and a torsion device for preventing joint portions between the damping device and the torsion device, To a damping device and a closure having a freedom-of-freedom joint structure of the torsion device.

Generally, the closer is installed on a door or the like. When the door is rotated and opened and the force applied to the door is removed, the door rotates and closes by itself. Such a closure includes a damping device for generating a damping force by a working fluid and a torsion device for generating a restoring force by a spring.

As a conventional technique related to such a closure, Korean Patent Laid-Open Publication No. 10-2015-0028665 discloses a "door closure", which includes a first body portion in which a first coupling portion is formed and a second body portion located in both ends of the first coupling portion A hinge housing having a second body portion formed with a second coupling portion and a third coupling portion and hinged to the first body portion; A coupling unit which is provided in the first coupling unit and to which one end of the torsion spring is coupled; A control unit provided in the second coupling unit and coupled to the other end of the torsion spring and selectively transmitting the elastic force of the torsion spring to the second body unit; And a speed control unit that is provided in the third coupling unit and is coupled to the coupling unit and controls the rotational speed of the first body part or the second body part by variable according to the interval by the damping force of the viscous fluid received in the inside, .

However, such a conventional technique does not allow a degree of freedom between the torsion spring corresponding to the torsion device and the speed control unit corresponding to the damping device, so that the damping device and the torsion device Thereby causing damage to each of the connecting portions and the respective portions, thereby deteriorating durability and reliability of operation.

In order to solve the problems of the prior art as described above, the present invention allows a connection portion between a damping device and a torsion device to have a certain degree of freedom, thereby enabling a connection portion between a damping device and a torsion device due to eccentric compression force, To prevent damage to each of them, thereby improving durability and reliability of operation.

Other objects of the present invention will become readily apparent from the following description of the embodiments.

In order to achieve the above object, according to one aspect of the present invention, elastic energy is accumulated by an opening force of a door and a damping device for providing a damping force for controlling a closing speed of a door, A closure having a torsion device provided with a force, wherein the damping device and the torsion device are movably coupled in a width direction.

In the torsion device, a sliding member, which is installed to reciprocate in the longitudinal direction, may be coupled to an end of a coupling member fixed to the piston of the damping device so as to be movable in the width direction in the coupling groove.

Wherein the damping device comprises: a damping housing part filled with a working fluid on the inner side and provided with first and second sealing parts at both ends for sealing; A piston inserted through the second sealing portion and inserted into the damping housing portion, the head being provided to receive a pressure of the working fluid; Wherein the head is fixed to the inside of the damping housing part so that the head is inserted into the inside and the inside space is divided into first and second spaces which are in contact with each of the first and second sealing parts sides, A damping chamber providing a working fluid passage between the first and second spaces for damping by forming a main passage connecting the two spaces; And a unidirectional control unit provided in the main flow path and allowing the working fluid to move between the first and second spaces in one direction during the movement of the piston.

Wherein the body is provided with a pressure relief portion for allowing the working fluid to move from the first space to the second space when the pressure in the first space is equal to or higher than a predetermined pressure, A pressure release channel formed to connect the second spaces to each other; And a pressure restricting valve installed in the pressure relieving passage and opened when the pressure in the first space is equal to or higher than a predetermined pressure.

The torsion device includes a torsion housing part fixed to one of the hinges of the hinge device; A spring installed in the torsion housing portion; A sliding member installed to be able to reciprocate in the longitudinal direction in a state in which rotation is suppressed in the torsion housing portion by being elastically supported by the spring; A rotating member that is fitted to the sliding member so as to be rotatable relative to the sliding member and is fixed to the other hinge of the hinge device; A guide protrusion is formed on one of the sliding member and the rotating member and a guide groove on which the guide protrusion is coupled is formed to be inclined in the reciprocating direction, And a rotary motion converting unit converting the linear motion of the sliding member to each other and inserting a rotary ring, which rotates when the guide protrusion moves along the guide groove, to the outside.

Wherein the rotary motion converting section comprises a shaft member having the guide protrusion extending through the fitting section of the sliding member and having both ends protruding therefrom, the guide groove having a portion Wherein a first section corresponding to a range in which the guide protrusions at an initial stage at which the door is opened is larger than a slope of a second section corresponding to a range in which the guide protrusions except the initial section move, May be formed to have a slope.

According to the closure having the damping device and the torsion device according to the present invention, the damping device and the torsion device are provided with the damping device and the torsion device according to the eccentric compression force, Thereby preventing durability and reliability of the operation.

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is an exploded perspective view showing a mounting structure of a closure having a damping device and a torsion device allowing a degree of freedom of freedom according to an embodiment of the present invention. FIG.
FIG. 2 is a perspective view showing a partial cross-sectional view of a first hinge in an installation structure of a closure having a damping device and a torsion device according to an embodiment of the present invention.
3 is a perspective view illustrating a hinge device having a closure having a damping device and a freedom-of-freedom joint structure of a torsion device according to an embodiment of the present invention.
FIG. 4 is a cross-sectional view illustrating a structure of a closure having a damping device and a torsion device allowing a degree of freedom of a joint according to an embodiment of the present invention, in which the closure is closed.
5 is a perspective view illustrating a damping chamber and a piston of a closure having a damping device and a torsion device allowing a degree of freedom of freedom according to an embodiment of the present invention.
6 is a perspective view illustrating a damping chamber of a closure having a damping device and a freedom-of-freedom joint structure of a torsion device according to an embodiment of the present invention.
FIG. 7 is an exploded perspective view showing a torsion device of a closure having a dorsiflexion device and a flexible joint structure of a torsion device according to an embodiment of the present invention. FIG.
FIG. 8 is a schematic development view of angles of a guide groove and a stopping projection in a torsion device of a closure having a damping device and a torsion device allowing a degree of freedom of a joint according to an embodiment of the present invention.
FIG. 9 is a graph showing a movement locus of a guide projection, a compression force of a spring, and a damping force applied to a torsion device of a closure having a damping device and a torsion device of a torsion device according to an embodiment of the present invention.
10 is a cross-sectional view showing a mounting structure of a closure having a damping device and a torsion device allowing a degree of freedom of a joint according to an embodiment of the present invention, wherein the closure is opened at 45 degrees.
11 is a cross-sectional view showing a mounting structure of a closure having a damping device and a torsion device allowing a degree of freedom of a joint according to an embodiment of the present invention, and is a sectional view showing a state in which the closure is opened at 90 degrees.

The present invention is capable of various modifications and various embodiments, and specific embodiments are illustrated and described in detail in the drawings. It is to be understood, however, that the invention is not to be limited to the specific embodiments, but is to be understood to cover all modifications, equivalents, and alternatives falling within the spirit and scope of the invention, And the scope of the present invention is not limited to the following examples.

Hereinafter, embodiments according to the present invention will be described in detail with reference to the accompanying drawings, wherein like or corresponding elements are denoted by the same reference numerals, and redundant explanations thereof will be omitted.

FIG. 1 is an exploded perspective view showing a mounting structure of a closure having a damping device and a torsion device according to an embodiment of the present invention, the damping device and the torsion device having a free- FIG. 3 is a perspective view showing a part of a first hinge in a closure installation structure having an allowable degree of freedom joint of the apparatus. FIG. 3 is a perspective view showing a closure having a joint structure permitting freedom of freedom of a damping device and a torsion device according to an embodiment of the present invention. FIG. 4 is a cross-sectional view illustrating a mounting structure of a closure having a damping device and a torsion device allowing a degree of freedom of a joint according to an embodiment of the present invention, wherein a closure is shown in a closed state FIG.

Referring to FIGS. 1 to 4, a damping device and damping device 100 according to an embodiment of the present invention have a damping force for adjusting a closing speed of a door, And a torsion device (200) which is provided with damping force from the damping device (100), wherein the damping device (100) and the torsion device (200) Respectively. The torsion device 200 further includes a coupling member 235 fixed to the piston 120 of the damping device 100 such that the sliding member 230 is reciprocally movable in the longitudinal direction, To the direction of flow. Meanwhile, the closure installation structure 10 having the damping device and the torsion device permitting joint structure according to an embodiment of the present invention includes a closure and a hinge device 300 ). On the other hand, the portion of the hinge device 300 to which the adhesive is adhered may be a threaded portion with the closure.

The closure having the damping device and the torsion device according to one embodiment of the present invention has a damping force for adjusting the closing speed of the door, The damping device 100 includes a torsion device 200 having elastic energy accumulated therein and a damping force from the damping device 100. The torsion device 200 includes a hinge 310 on the outer circumferential surface of the damping device 100 and an outer circumferential surface of the torsion device 200, And male threads 118 and 263 may be respectively formed to be screwed to each of the housings 311 provided in a plurality.

The damping device 100 may include a damping housing part 110, a piston 120, a damping chamber 130, and a unidirectional control part 140. Further, the closure having the damping device and the torsion device permitting the joint of the degree of freedom of the torsion device according to the embodiment of the present invention accumulates elastic energy by the opening force of the door, and the force applied to the door causes the accumulated elastic energy, And the damping device 100 adjusts the closing speed of the door by providing the damping force through the torsion device 200.

The damping device 100 is installed, for example, in the first and second housings 311 and 321 arranged in a line so as to be rotatable relative to each other in the hinge device 300 together with the torsion device 200. The damping device 100 may be installed at one side of the first and second housings 311 and 321, for example, at one side of the first housing 311, and the torsion device 200 may be provided with a torsion spring 1 and the second housings 311, 321, respectively.

In this embodiment, the hinge device 300 may have a pair of hinges, e.g., first and second hinges 310 and 320. The first hinge 310 is fixed to either the door or the door frame by a screw or bolt or the like so that the damping device 100 and the torsion device 200 are screwed together and adhered with an adhesive. A plurality of first wings 312 may be provided. The second hinge 320 is fixed to the other one of the door or the door frame by screws or bolts such that the first housing 311 is arranged in a line at both ends and the second housing 321 to which the torsion device 200 is fixed The second wing 322 may be provided with a second wing 322 for receiving the second wing 322. In addition, the first housing 311 may include a plurality of, for example, two as shown in this embodiment, and may be positioned at both ends of the second housing 321, respectively.

Referring to FIGS. 1 and 4, the damping housing part 110 may be filled with a working fluid, for example, oil, and first and second sealing parts 111 and 112 may be provided at both ends for sealing. For example, the first male threaded portion 118 may be formed to be screwed to one of the female threads 313 of the first housing 311. Here, the first sealing part 111 may be integrally formed at one end of the damping housing part 110 as in the present embodiment, and a through hole may be formed to allow the piston 120 to pass therethrough. The second sealing portion 112 may be detachably fixed to the inside of the other end of the damping housing portion 110 by a screw connection, and a through hole may be formed to penetrate the piston 120, A sealing member such as an O-ring or the like may be provided in order to maintain airtightness at the joining portion. Such a sealing member such as an O-ring can be installed in a part that requires airtightness in the closure. Further, the damping housing part 110 may be formed with a locking protrusion 117 so as to be engaged with the first housing 311.

1, 4 and 5, the piston 120 is inserted into the damping housing part 110 through the second sealing part 112, and the head 121 . The piston 120 is coupled or fixed to the sliding member 230 of the torsion device 200 via a coupling member 235 screwed to the coupling portion 122 which is a female screw formed at the end of the rod, 230).

The piston 120 may be provided, for example, so that the rod extends to both sides of the head 121, both ends thereof may be slidably coupled to the first and second sealing portions 111 and 112, The pressure in the first and second spaces 131 and 132 of the damping chamber 130 can be adjusted and the pressure in the first and second spaces 131 and 132 can be adjusted. The opening degree of the bypass flow path 123 can be adjusted by the damping adjusting bolt 124 screwed to one end exposed from the part 111. [ The amount of opening and closing of the bypass passage 123 can be adjusted by tightening and loosening the damping adjusting bolt 124. The damping force can be adjusted by adjusting the amount of the working fluid passing therethrough, And a straight groove, a cross groove, a wrench groove, or the like may be formed for insertion of the jig during rotation.

Referring to FIGS. 1 and 4 to 6, the damping chamber 130 may include a body 138 and main flow paths 133, 134, and 135.

The body 138 is inserted and fixed in the damping housing part 110 of the damping device 100 to fill the inner space 139 with the working fluid and the head 121 of the piston 120 of the damping device 100, And the inner space 139 is divided into the first and second spaces 131 and 132 by the head 121 by being inserted into the inner space. The body 138 is divided into the first and second spaces 131 and 132 in which the inner space 139 is in contact with each of the first and second sealing portions 111 and 112 by the head 121, Thereby providing a working fluid passage between the first and second spaces 131, 132.

The body 138 may be a cylindrical hollow member having both ends opened, for example, and both ends may be fixed by the first and second sealing portions 111 and 112 in the damping housing portion 110.

The body 138 or the piston 120 may be configured to allow the movement of the working fluid in various ways or structures in order to prevent damage due to excessive pressure of the working fluid when the door or the like is opened and then closed, The body 138 is provided with a pressure relief portion 150 for allowing the working fluid to move from the first space 131 to the second space 132 when the pressure in the first space 131 is equal to or higher than a predetermined pressure . The pressure relief portion 150 includes a pressure relief passage 151 formed to connect the first and second spaces 131 and 132 to the side of the body 138, And a pressure-relief valve 152 that opens when the pressure in the first space 131 is equal to or higher than a predetermined pressure. Where the pressure limiting valve 152 may operate to open, for example, when the door is to be closed, if the pressure exceeds a pressure that may cause the body 138 to be damaged by the working fluid.

The main flow paths 133, 134 and 135 are formed in the body 138 of the damping chamber 130 so as to connect the first and second spaces 131 and 132 to each other so that the working fluid moving path between the first and second spaces 131 and 132 for damping Lt; / RTI > The main flow paths 133, 134 and 135 include a connection hole 133 formed on the side of the body 138 of the damping chamber 130 to connect the second space 132 to the outside, And a connecting groove 134 formed at an end of the body 138 so that the flow path groove 134 is connected to the first space 131, (135). Therefore, the main flow paths 133, 134, and 135 can provide a movement path between the first and second spaces 131 and 132 of the working fluid isolated from the head 121 that reciprocates by itself without the help of another flow path.

The flow path groove 134 may be formed in a plane by a plane cutter so as to extend in the longitudinal direction from the connection hole 133 to the connection groove 135 on the outer surface of the cylindrical body 138, .

The damping chamber 130 may have at least one or more control flow paths 136 and 137 for moving the working fluid between the first and second spaces 131 and 132 by bypassing the head 121 to the inner peripheral surface. A plurality of control flow paths 136 and 137 may be formed as in the present embodiment and two actuating valves 136 and 137 may be formed in the damping chamber 130 so that when the head 121 of the piston 120 moves, The fluid moves from the first space 131 to the second space 132 or vice versa by bypassing the head 121. [ The control flow paths 136 and 137 enable adjustment of the damping force or the closing speed of each section with respect to the opening and closing area of the door corresponding to the position of the head 121 in the damping chamber 130.

The adjustment channels 136 and 137 are formed to have a length greater than the thickness of the head 121. The adjustment channels 136 and 137 are formed in the damping chamber 130 in consideration of the position of the head 121, The forming position and length can be determined. The control flow paths 136 and 137 may be formed so as to overlap each other with respect to the reciprocating direction of the head 121 so that the damping force change sections naturally follow, for example. Alternatively, the control flow paths 136 and 137 may overlap each other, The force variation period may be intermittent, or may be formed in a single unit. The cross sectional area may be determined taking into account the bypass amount of the working fluid required for adjusting the damping.

4, the unidirectional control unit 140 is provided in the main flow paths 133, 134, 135 of the damping chamber 130. When the piston 120 moves, the working fluid flows between the first and second spaces 131, 132 in one direction For example, a check valve installed to move the door in one direction from the first space 131 to the second space 132 in the direction of reducing the damping force when the door is opened as in the present embodiment. The check valve which is an example of the unidirectional control unit 140 in the present embodiment can be installed in the connection hole 133 among the main flow paths 133,134 and 135 by screwing or interference fit, The main flow paths 133, 134 and 135 can be opened and closed in one direction by limiting the moving direction of the working fluid.

Referring to FIGS. 1 to 4 and 7, the closure having the damping device and the torsion device allowable joint structure according to an embodiment of the present invention includes a torsion housing part 210, a fixed cap 260, a spring 220, a sliding member 230, a rotating member 240, and a rotational motion converting unit 250.

The torsion housing unit 210 can be installed in any one of the hinges of the hinge device 300 such as the first hinge 310 and the other of the first housing 311, A plurality of, for example, two, sliding grooves 211 may be formed along the longitudinal direction so as to be slidably coupled to the inner side of the screw groove 212, A tension adjusting bolt 213 for adjusting the tension of the spring 220 is screwed in accordance with the amount of rotation. The tension adjusting bolt 213 is rotated by the rotation of the torsion housing part 210 to adjust the compression amount or the elasticity of the spring 220 by the rotation of the torsion housing part 210, And a groove for jig coupling such as a straight groove, a cross groove or a wrench groove can be formed for rotation.

The torsion housing unit 210 is inserted into the first housing 311 of the first hinge 310 fixed to either the door or the frame by screws or bolts by the first wing 312 in the hinge unit 300. [ At least one or more fixing protrusions 214 may be formed on the outer surface of the first housing 311 so as to be fixed to the first housing 311 in an integrated manner by being fitted into fixing grooves formed on the inner side of the first housing 311 And a latching jaw 215 may be formed along the outer circumferential surface.

The fixed cap 260 may be formed on the outer circumferential surface of the housing 210 such that the fixed cap 260 is screwed to the female screw portion 313 of the other one of the first housing 311 and the torsion housing portion 210 Can be fixed. The fixing cap 260 may be formed on the outer side of the torsion housing part 210 to form the through hole 261 to be caught by the stopping jaw 215 to prevent the torsion housing part 210 from separating from the housing, A second male threaded portion 263 may be formed on the outer circumferential surface so as to be screwed to the female threaded portion 313 of the first housing 311 and a locking protrusion 262 is formed to catch the end of the torsion housing portion 210 .

The spring 220 is installed inside the torsion housing part 210 to provide an elastic force in the longitudinal direction. The spring 220 may be formed of a coil compression spring as in the present embodiment. The spring 220 is supported at one end by the tension adjusting bolt 213, And can be supported by the sliding member 230.

The sliding member 230 is installed to be capable of reciprocating in the longitudinal direction in a state where the rotation of the sliding member 230 is restrained within the torsion housing unit 210 while the piston 120 of the damping device 100 is reciprocated Lt; / RTI > The sliding member 230 is formed with a plurality of sliding protrusions 231 for sliding engagement with the respective sliding grooves 211 so as to be reciprocally movable in a state in which the rotation is inhibited from the torsion housing portion 210 .

The sliding member 230 is configured such that the end of the engaging member 235 fixed to the piston 120 is coupled to the engaging groove 232 so as to be movable in the width direction so that the sliding member 230 is eccentric with the piston 120 during operation, Even if a compressive force or the like acts, the degree of freedom can be allowed to some extent to prevent the self or the coupling member 235 or the piston 120 from being damaged by stress concentration or the like. The coupling groove 232 may be formed to extend in the width direction at the end of the sliding member 230, for example, and may have a structure in which the end of the coupling member 235 is opened to be inserted in the width direction.

The rotation member 240 is fitted to the sliding member 230 so as to be rotatable relative to the sliding member 230 and is relatively moved relative to the sliding member 230 when the door is rotated And may be fixed to the other hinge of the hinge device 300, for example, the second hinge 320. The rotary member 240 rotates relative to the sliding member 230 when the door is rotated. The rotary member 240 is rotated by a bolt, a screw or the like by the second wing 322 on the other of the door and the door frame in the hinge device 100 At least one fixing protrusion 241 for fixing the second hinge 320 to the fixing groove of the second housing 321 may be provided on the outer surface.

A thrust bearing 243 may be interposed between the rotary member 240 and the second sealing portion 112 of the damping device 100. If necessary, a washer (not shown) The thrust bearing 243 may be inserted into the coupling member 235 and installed in the second housing 321. [ The relative rotation of the rotary member 240 is also applied to the case where the first hinge 310 of the hinge device 300 is fixed to the door side and the second hinge 320 is fixed to the door frame side, All of the cases where the hinge 310 is fixed to the door frame side and the second hinge 320 is fixed to the door side are considered. For example, the rotary member 240 is coupled to the door side by the hinge device 300 When the torsion housing part 210 is coupled to the door frame by the hinge device 300, the rotary member 240 may be coupled to the door frame by the hinge device 300, The rotation member 240 may be rotated relative to the torsion housing part 210 when considering both of them when the hinge device 300 is coupled to the door by the hinge device 300. [

The rotary motion converting unit 250 includes a guide protrusion 251 formed on one of the sliding member 230 and the rotary member 240 and a guide protrusion 251 formed on the other of the sliding protrusion 251, (252) is inclined in the reciprocating direction to convert the rotational motion of the rotational member (240) and the linear motion of the sliding member (230) to each other.

The guide protrusion 251 can be inserted into the outside of the rotary ring 253 that rotates when the guide protrusion 251 moves along the guide groove 252. The resistance due to frictional force when moving along the guide groove 252 is minimized by the rotary ring 253 So that smooth operation is possible, and abrasion or damage due to friction can be prevented. The guide protrusion 251 may be formed as a shaft member having both ends protruding through the fixing hole 233 formed in the fitting portion 234 of the sliding member 230 in the present embodiment in consideration of durability, have.

The guide groove 252 may be formed at a portion where the fitting portion 234 is fitted in the rotary member 240 to correspond to each of the guide protrusions 251 and may have a width suitable for accommodating the rotary ring 253. [ .

On the other hand, as in the present embodiment, the rotation member 240 is provided with a plurality of detent protrusions 242 along the edge thereof so that the guide protrusions 251 detached from the guide grooves 252 are caught to stop the door from being closed until an external force is applied As shown in FIG.

The guide protrusions 251 may be formed on the outer circumferential surface of the fitting portion 242 of the rotary member 240 in a plurality of such as two and the guide grooves 252 may be formed on the sliding member 230 so as to correspond to the guide protrusions 251, For example, two at the portion where the fitting portion 242 is fitted.

The rotation member 240 may be formed with a plurality of detent protrusions 242 along the edge thereof so that the guide protrusion 251 detached from the guide groove 252 is caught to stop the door from being closed until an external force is applied.

8 and 9, the guide groove 252 of the rotary motion converting unit 250 is divided into a first section 252a corresponding to a range in which the initial guide projection 251 of the door is opened, The slope of the second section 252b corresponding to the range in which the guide protrusions 251 are excluded. Here, the first section 252a may correspond to a case where the door is initially opened at 0 to 5 degrees, for example, 0 to 10 degrees. The second section 252b may correspond to a case where the door is opened from 5 to 15 degrees to 70 to 90 degrees, for example, from 10 to 80 degrees. Here, the inclination of the first and second sections 252a and 252b may be inclined with respect to the reciprocating direction of the sliding member 230.

Therefore, the slope of the first section 252a corresponding to the section "A ", which is the latching stop section in which the door is opened at 0 to 5 to 15 degrees, is made comparatively large, (b) is larger than the closing force (a) in the section "A " so that the spring force (c) is relatively sharply increased with respect to the compression force direction of the spring (220) . The inclination of the second section 252b corresponding to the section "B ", which is the normal section in which the door is opened at 5 to 15 degrees and 70 to 90 degrees, is made relatively small, so that the inclination of the guide projection 251 (c) is relatively gentle with respect to the compressive force direction of the spring 220 so as to relatively reduce the force of the compression of the spring 220, and the large closing force (a) in the "B" . Here, in the section " C "corresponding to the stop section, the guide protrusion 251 is detached from the guide groove 252, that is, the second section 252b so as to be caught by the stop protrusion 242, You can stop closing until before.

The operation of the closure damping device according to one embodiment of the present invention will now be described.

As shown in FIG. 4, when the first and second hinges 310 and 320 (shown in FIGS. 1 and 3) of the hinge device 300 that mediates the installation of the door to the door frame are closed by the door, An elastic force is applied to the sliding member 230 from the spring 220 of the torsion device 200 and a force applied from the sliding member 230 is transmitted to the rotary member 240 by the rotary motion conversion unit 250 So that the door remains closed. At this time, the guide protrusion 251 of the rotary motion converting unit 250 is positioned in the guide groove 252.

10, when the door is opened at about 45 degrees by applying a force to the door, the first and second hinges 310 and 320 (shown in FIGS. 1 and 3) of the hinge device 300 are rotated at an angle of 45 degrees with respect to each other The opening force of the door allows the rotational member 240 fixed to the second housing 321 of the second hinge 320 (shown in Figs. 1 and 3) to be relatively moved relative to the sliding member 230 The guide protrusion 251 of the rotary motion converting unit 250 is moved along the guide groove 252 by the rotation of the rotary member 240 so that the sliding member 230 starts to linearly move, Thereby causing the elastic force of the spring 220 to start to accumulate.

At this time, the piston 120 of the damping device 100 moves together with the sliding member 230 to start the compression of the working fluid toward the second space 132 by the piston 120. At this time, 132 are moved to the first space 131 through the main flow paths 133, 134, 135 with the check valve corresponding to the unidirectional control part 140 opened. On the other hand, the position of the piston 120 in which the door is opened at 45 degrees shows a small movement with respect to the position in the closed state of the door, which depends on the predetermined inclination or curvature of the guide projection 251 and the guide groove 252 , And may be designed differently as needed.

As shown in FIG. 11, when the first and second hinges 310 and 320 (shown in FIGS. 1 and 3) are opened at 90 degrees by being opened at 90 degrees by the continuous opening of the door, The pressing force of the spring 220 and the movement of the working fluid become larger and the elastic force by the compression of the spring 220 is applied to the sliding member 230 and the rotary member 240 to return the door to close .

The elastic force accumulated in the spring 220 causes the sliding member 230 to linearly move back and the guide protrusion 251 of the rotary motion converting unit 250 moves the guide groove 252 So that the rotary member 240 is rotated to close the door. At this time, the piston 120 moves together with the sliding member 230 to compress the working fluid toward the first space 132, whereby the working fluid in the first space 131 passes through the bypass flow path 123, The movement amount of the working fluid through the bypass flow path 123 can be adjusted to the damping adjustment bolt 124. [

The sliding member 230 is moved by the relative rotation of the rotary member 240 and the sliding member 230 to compress the spring 220 when the door is opened by the hinge device 300, The relative rotation of the sliding member 230 and the rotary member 240 causes the door to be closed by the return of the sliding member 230 by the spring 220 when the applied force is released. At this time, the working fluid is compressed by the movement of the piston 120 moving together with the sliding member 230, thereby causing the working fluid in the damping device 100 to move between the first and second spaces 131 and 132, .

The damping force of the damping device 100 can be adjusted for each section by the control flow channels 136 and 137 provided to bypass the head 121 of the piston 120 to the damping chamber 130. As a result, Can be controlled for each section.

According to the closure having the damping device and the torsion device according to the present invention, the damping device and the torsion device are allowed to have a certain degree of freedom, It is possible to prevent the connection portion between the torsion gears and each of them, and to thereby improve the durability and reliability of the operation.

Although the present invention has been described with reference to the accompanying drawings, it is to be understood that various changes and modifications may be made without departing from the spirit and scope of the present invention. Therefore, the scope of the present invention should not be limited to the described embodiments, but should be determined by the scope of the appended claims and equivalents thereof.

100: damping device 10: damping housing part
111: first sealing part 112: second sealing part
117: latching jaw 118: first male thread
120: piston 121: head
122: engaging portion 123: bypass passage
124: damping adjustment bolt 130: damping chamber
131: first space 132: second space
133, 134, 135: main flow path 136, 137:
138: body 139: inner space
140: one-way control unit 150:
151: pressure release flow path 152: pressure restriction valve
200: Torsion device 210: Torsion housing part
211: sliding groove 212: screw groove
213: tension adjusting bolt 214: fixing projection
215: latching jaw 220: spring
230: Sliding member 231: Sliding projection
232: coupling groove 233: fixing hole
234: fitting part 235:
240: Rotating member 241: Fixing projection
242: detent projection 243: thrust bearing
250: rotational motion converting unit 251: guide projection
252: guide groove 252a: first section
252b: second section 253: rotating ring
260: fixed cap 261: through hole
262: a locking projection 263: a second male thread
300: hinge device 310: first hinge
311: first housing 312: first wing
313: Female thread portion 320: Second hinge
321: second housing 322: second wing

Claims (6)

A closure having a damping device for providing a damping force for adjusting a closing speed of a door, and a torsion device for storing elastic energy by an opening force of the door and provided with a damping force from the damping device,
Wherein the damping device and the torsion device are movably coupled in a width direction,
Wherein the damping device comprises:
A damping housing part filled with working fluid on the inner side and provided with first and second sealing parts at both ends for sealing;
A piston inserted through the second sealing portion and inserted into the damping housing portion, the head being provided to receive a pressure of the working fluid;
Wherein the head is fixed to the inside of the damping housing part so that the head is inserted into the inside and the inside space is divided into first and second spaces which are in contact with each of the first and second sealing parts sides, A damping chamber providing a working fluid passage between the first and second spaces for damping by forming a main passage connecting the two spaces; And
A unidirectional control unit provided in the main flow path and allowing the working fluid to move in one direction between the first and second spaces when the piston is in motion;
Lt; / RTI >
The body of the damping chamber includes:
A pressure release portion is provided to allow the working fluid to move from the first space to the second space when the pressure in the first space is equal to or higher than a predetermined pressure,
The pressure-
A pressure release channel formed on a side of the body to connect the first and second spaces to each other; And
A pressure restricting valve installed in the pressure relieving passage and opened when the pressure in the first space is equal to or higher than a predetermined pressure;
A damping device and a closure having a freedom degree of freedom structure of the torsion device. The method according to claim 1,
The torsion device includes:
Wherein a sliding member provided to be capable of reciprocating in the longitudinal direction is coupled to the coupling groove at an end of the coupling member fixed to the piston of the damping device so as to be movable in the width direction, Closures. delete delete The method according to claim 1 or 2,
The torsion device includes:
A torsion housing part fixed to one of the hinges of the hinge device;
A spring installed in the torsion housing portion;
A sliding member installed to be able to reciprocate in the longitudinal direction in a state in which rotation is suppressed in the torsion housing portion by being elastically supported by the spring;
A rotating member that is fitted to the sliding member so as to be rotatable relative to the sliding member and is fixed to the other hinge of the hinge device; And
A guide protrusion is formed on one of the sliding member and the rotary member and a guide groove on which the guide protrusion is engaged is inclined in the reciprocating direction, A rotary motion converting unit that converts the linear motion of the sliding member to each other and inserts a rotary ring, which is rotated when the guide protrusion is moved along the guide groove, to the outside;
A damping device and a closure having a freedom degree of freedom structure of the torsion device. The method of claim 5,
Wherein the rotation-
Wherein the guide protrusion is formed in a portion of the rotary member at which the fitting portion is fitted so that the guide groove corresponds to each of the guide protrusions,
The guide groove
Wherein a first section corresponding to a range in which the guide protrusion at an initial stage in which the door is opened is formed to have a slope larger than a slope of a second section corresponding to a range in which the guide protrusion moves except for the initial stage, And a closure having a joint structure allowing freedom of freedom of the torsion device.

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