KR101887344B1 - Damping chamber of closer and damping apparatus with the same - Google Patents

Abstract

A damping chamber installed in a damping device of a closure is inserted and fixed inside the damping housing part of the damping device to fill the inner space with a working fluid and the head of the piston of the damping device is inserted inside, A body divided into a first space and a second space; And a channel groove formed on an outer surface of the body so as to connect the connection hole to the first space side, To a damping chamber of a closure and a damping device having the damping chamber.
According to the present invention, it is possible to easily form a flow path of a working fluid by being easily assembled to a housing part, and it is not required to have a comparatively high precision, thereby making it easy to manufacture and reduce manufacturing cost, It is possible to accurately control the resistance of the working fluid and to easily control the resistance of the working fluid by intervals.

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to a damping chamber of a closure,

The present invention relates to a damping chamber of a closure and a damping device having the damping chamber. More particularly, the present invention relates to a damping chamber of a closure, And a damping chamber having a damping chamber of a closure for ensuring an excellent damping operation reliability.

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 such a damping device of a closure is disclosed in Korean Patent Laid-Open No. 10-2012-0124938 entitled " Rotary Type Damper ", which comprises a housing filled with a working fluid; A shaft rotatably installed through the inside of the housing; A housing pin provided on an inner circumferential surface of the housing to reach the side of the shaft, the housing pin restricting movement of the working fluid; And an axle pin coupled to the shaft to rotate together with the shaft, the shaft pin being brought into close contact with a side portion of the shaft and an inner circumferential surface of the housing by varying an attitude according to a rotation direction of the shaft.

However, in the conventional technology as described above, it is difficult to control the operation of the housing pin and the axle pin at the time of manufacture. Therefore, it is difficult to precisely control the resistance of the working fluid. And the like.

In addition, such a conventional technique requires a high degree of precision in the process of manufacturing the component including the housing pin and the axial fin in manufacturing, resulting in difficulty in fabrication and increase in cost, There is a problem that not only an easy assembling structure is presented, but also it is difficult to realize this.

In order to solve the problems of the prior art as described above, the present invention facilitates the formation of a working fluid flow path by being easily assembled to the housing part, and does not require a relatively high precision, But also contributes to reduction of manufacturing cost, improvement of accuracy of intermittent operation fluid and reliability of damping operation, accurate control of the resistance of the working fluid, and easy control of the resistance of the working fluid by intervals.

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

According to an aspect of the present invention, there is provided a damping chamber installed in a damping device of a closure, wherein the damping chamber is inserted and fixed inside the damping housing part of the damping device, A body divided into first and second spaces by the head by inserting the head of the piston of the damping unit inside; And a channel groove formed on an outer surface of the body so as to connect the connection hole to the first space side, And a main flow passage for providing a movement passage of the working fluid isolated from the head moving.

The body may be formed by a cylindrical member having both ends opened, and the flow path groove may be formed by a surface cutter to extend from the connection hole to the end at the outer surface of the body.

The main flow path is connected to a connection path formed to connect the first space and the edge side to the first sealing part for blocking one end of the damping housing part, The second spaces can be connected to each other.

The main flow path may have a connection groove formed at an end of the body so that the flow path groove is connected to the first space.

The main passage may be provided with a check valve for allowing a working fluid to move between the first and second spaces in one direction when the piston moves in the connection hole.

The body may be 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.

Wherein the pressure relief portion includes a pressure relief passage formed on a side of the body so as 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.

The damping chamber may be formed with at least one or more control flow passages on the inner surface thereof so that the working fluid moves between the first and second spaces by bypassing the head.

The damping chamber may include a plurality of control flow paths, and each of the control flow paths may be partially overlapped with the reciprocating direction of the head.

According to another aspect of the present invention, there is provided an internal combustion engine comprising: an inner side filled with a working fluid; first and second sealing portions provided at both ends for sealing; and a central portion and an edge of the first sealing portion facing the piston, A damping housing part in which a connecting passage is formed; 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 divided into first and second spaces which are fixed to the inside of the damping housing part so that the head is inserted inside and the inner space is in contact with each of the first and second sealing parts sides by the head, And a main flow passage connected to a center portion of the connection passage and connecting the edge portion of the connection passage to the second space, the main passage being connected to the center portion of the connection passage, A damping chamber provided; And a unidirectional control unit provided on the piston, the unidirectional control unit causing the working fluid to move in one direction between the first and second spaces when the piston is in motion.

The damping housing part may be screwed to the first sealing part such that a damping adjusting bolt for adjusting the degree of opening and closing of the connecting passage is exposed to the outside.

The connection passage includes a first connection passage formed at a center of the first seal portion to be connected to the first space; At least one second connection passage formed from the first connection passage to an edge of the first seal portion; And a third connection passage formed along an edge of the first sealing portion on a side where the damping chamber contacts the second connection passage.

Wherein the main passage includes a connection hole formed at a side of the damping chamber to connect the second space with the outside; And a channel groove formed along the longitudinal direction on the outer surface of the damping chamber to connect the connection hole and the edge side of the connection channel.

Wherein the one-way control unit comprises: a control flow passage formed to connect the first and second spaces to the piston; And a check valve installed in the control passage and allowing unidirectional movement from the first space to the second space.

According to another aspect of the present invention, there is provided a damping device comprising: a damping housing part filled with a working fluid on an inner side and provided with first and second sealing parts for sealing at both ends; 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 which is provided in the main flow path and allows the working fluid to move in one direction between the first and second spaces when the piston is in motion.

Wherein the piston is formed with a bypass flow path connecting both ends of the head so as to bypass the head, both ends of the piston being slidably coupled to the first and second hermetically sealed portions, The degree of opening of the bypass passage can be adjusted by the damping adjusting bolt threadedly engaged with the bypass passage.

The main passage includes a connection hole formed at a side of the body of the damping chamber to connect the second space with the outside; A channel groove formed on an outer surface of the body to connect the connection hole to the first space side; And a connection groove formed at an end of the body so that the flow path groove is connected to the first space.

The body may be 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.

Wherein the pressure relief portion includes a pressure relief passage formed on a side of the body so as 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.

The damping chamber may have at least one regulating passage for moving the working fluid between the first and second spaces by bypassing the head to the inner circumferential surface.

According to the damping chamber of the closure and the damping device having the damping chamber according to the present invention, it is easy to form the working fluid by assembling the housing part easily, and it is not required to have a comparatively high precision, It is possible to reduce the manufacturing cost, contribute to improving the accuracy of the intermittent operation of the working fluid and the reliability of the damping operation, precisely control the resistance of the working fluid, and easily control the resistance of the working fluid by intervals .

1 is an exploded perspective view showing a closure according to a first embodiment of the present invention.
2 is a perspective view showing a hinge apparatus having a closure according to the first embodiment of the present invention.
Fig. 3 is a cross-sectional view showing a closure according to the first embodiment of the present invention, showing a state in which the closure is closed. Fig.
4 is an exploded perspective view showing the housing part of the damping device of the closure according to the first embodiment of the present invention.
5 is a perspective view showing the damping chamber and the piston of the closure according to the first embodiment of the present invention.
6 is a perspective view showing the damping chamber of the closure according to the first embodiment of the present invention.
7 is an exploded perspective view showing a torsion device of a closure according to the first embodiment of the present invention.
8 is a perspective view showing the torsion housing portion of the torsion device of the closure according to the first embodiment of the present invention.
9 is an exploded perspective view showing a rotary motion converting unit of the torsion device of the closure according to the first embodiment of the present invention.
10 is a sectional view showing a state in which the closure according to the first embodiment of the present invention is opened at 45 degrees.
11 is a sectional view showing a state in which the closure according to the first embodiment of the present invention is opened at 90 degrees.
12 is an exploded perspective view showing a closure according to a second embodiment of the present invention.
13 is a perspective view showing a hinge apparatus having a closure according to a second embodiment of the present invention.
Fig. 14 is a cross-sectional view showing a closure according to the second embodiment of the present invention, showing a state in which the closure is closed. Fig.
15 is a perspective view showing a damping chamber and a piston of a closure according to a second embodiment of the present invention.
16 is a perspective view showing a damping chamber of a closure according to a second embodiment of the present invention.
17 is an exploded perspective view showing a torsion device of a closure according to a second embodiment of the present invention.
18 is a sectional view showing a state in which the closure according to the second embodiment of the present invention is opened at 45 degrees.
19 is a sectional view showing a state in which the closure according to the second embodiment of the present invention 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 closure according to a first embodiment of the present invention, showing a closed state of the closure, FIG. 2 is a perspective view showing a hinge apparatus having a closure according to the first embodiment of the present invention, And Fig. 3 is a sectional view showing a closure according to the first embodiment of the present invention.

1 to 3, a closure damping chamber 130 according to a first embodiment of the present invention is included in a damping device 100, which is provided in the closure 10 A damping housing part 110, a piston 120, a damping chamber 130, and a unidirectional control part 140. The closure damping device 100 according to the first embodiment of the present invention can be used with the torsion device 200 wherein the elastic energy is accumulated by the opening force of the door, The damping device 100 of the closure provides the damping force through the torsion device 200 to adjust the closing speed of the door. Further, since the damping chamber 130 corresponds to the damping chamber of the closure according to the first embodiment of the present invention, the description thereof will be replaced with a description of the damping chamber of the closure.

The closure damping apparatus 100 according to the first embodiment of the present invention may include first and second housings 311 and 321 arranged in a line so as to be rotatable relative to each other in the hinge apparatus 300 together with the torsion apparatus 200, . The damping device 100 of the closure 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- And the first and second housings 311 and 321, respectively.

In this embodiment, the hinge device 300 may include a pair of hinges, for example, first and second hinges 310 and 320. Here, the first hinge 310 may be provided on the first housing 311 with a first wing 312 for fixing the first hinge 310 to either the door or the door frame with screws or bolts. The second hinge 320 may be provided on the second housing 321 with a second wing 322 to be fixed to the other one of the door or the door frame by screws or bolts. The first housing 311 may be located at either end of the second housing 321, or may be located between a plurality of second housings 321, for example, two, such as two, as in the present embodiment .

Referring to FIGS. 1, 3 and 4, the damping housing part 110 is filled with a working fluid, for example, oil, and first and second sealing parts 111 and 112 are provided at both ends for sealing, 1 connecting ports 113, 114 and 115 for connecting the central portion and the edge of the sealing portion 111 on the side facing the piston 120 are formed. Here, the first sealing part 111 may be detachably fixed to the inside of one end of the damping housing part 110 by screwing. The second sealing portion 112 may be detachably fixed to the inside of the other end of the damping housing portion 110 by screwing, and a through hole may be provided for the piston 120 to pass therethrough. In addition, a sealing member such as an O-ring or the like may be installed in the first and second hermetically sealed portions 111 and 112 to maintain airtightness at the connection portion with other components. Such a sealing member such as an O-ring can be provided in a portion requiring sealing at the closure 10 as well.

The damping housing part 110 may be screwed to the first sealing part 111 such that the damping adjusting bolt 116 for adjusting the opening and closing degree of the connecting flow paths 113, 114 and 115 is exposed to the outside. The damping housing part 110 may be formed with a locking step 117 to be engaged with the first housing 311.

The connection flow paths 113, 114 and 115 include a first connection path 113 formed at the center of the first sealing part 111 to be connected to the first space 131 and a second connection path 113 extending from the first connection path 113 to the first sealing part 111 At least one second connection passage 114 formed to extend to an edge of the damping chamber 130 and an edge of the damping chamber 130 in contact with the damping chamber 130 so as to be connected to the second connection passage 114 And a third connection passage 115 connected to the second connection passage 115. Here, the second connection passage 114 may be branched from the first connection passage 113 into a plurality of, for example, three, and connected to the third connection passage 115. The third connection passage 115 may be formed in the shape of a ring-like groove along the edge at the corner of the end of the first sealing portion 111.

The damping control bolt 116 may be screwed to the first sealing portion 111 so as to be in line with the first connecting flow path 113. The amount of opening and closing of the first and second connecting flow paths 113 and 114 The damping force can be adjusted by adjusting the amount of the working fluid passing therethrough. A straight groove, a cross groove or a wrench groove can be formed for the insertion of the jig during rotation.

Referring to FIGS. 1, 3 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 reciprocated integrally with the sliding member 230 by engaging the engaging portion 122 provided at the end of the rod with the sliding member 230 of the torsion device 200 and being fixed by bolts or the like.

Referring to FIGS. 3, 5 and 6, the damping chamber 130 of the closure according to the first embodiment of the present invention may include a body 137 and main flow paths 133 and 134.

The body 137 is inserted and fixed in the damping housing part 110 of the damping device 100 to fill the inner space 138 with the working fluid and the head 121 of the piston 120 of the damping device 100, Is divided into the first and second spaces 131 and 132 by the head 121 by being inserted into the inside. The body 137 is divided into a first space 131 and a second space 131 by which the inner space 138 is in contact with each of the first and second sealing portions 111 and 112 by the head 121, For example, the first connection flow path 113. The first connection flow path 113 and the second connection flow path 113 are connected to each other.

The body 137 may be formed of 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 main flow paths 133 and 134 include a connection hole 133 formed to connect the second space 132 to the outer side of the body 137 and a connection hole 133 connecting the connection hole 133 to the first space 131 side And a flow path groove 134 formed on the outer surface of the body 137 to provide a movement path for the working fluid isolated from the reciprocating head 121.

The main flow paths 133 and 134 are formed such that the flow path groove 134 is formed in the first sealing portion 111 blocking the one end of the damping housing portion 110 and the first space 131 and the connection flow paths 113, So that the first and second spaces 131 and 132 can be connected to each other with the connection flow paths 113, 114, and 115. That is, the main flow paths 133 and 134 are connected to the edge of the connection flow paths 113, 114 and 115 which are blocked by the end of the body 137, for example, the third connection flow path 115 and the second space 132, 1 and the second spaces 131, 132. In this way,

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 end on the outer surface of the cylindrical body 137, thereby facilitating flow path formation.

The damping chamber 130 may include at least one or more control flow paths 135 and 136 to allow the working fluid to move 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 135 and 136 may be formed as in the present embodiment and two actuating valves 135 and 136 may be formed in the damping chamber 130 such that when the head 121 of the piston 120 moves within the damping chamber 130, The fluid moves from the first space 131 to the second space 132 or vice versa by bypassing the head 121. [ The control flow channels 135 and 136 allow adjustment of the damping force or the closing speed of each section with respect to the open / close region of the door corresponding to the position of the head 121 in the damping chamber 130.

The control flow paths 135 and 136 are formed to have a length greater than the thickness of the head 121. The control flow paths 135 and 136 are formed in the damping chamber 130 in consideration of the position of the head 121, The forming position and length can be determined. Further, the control flow paths 135 and 136 may be formed so as to be partially overlapped with each other, for example, based on the reciprocating direction of the head 121 so that the damping force varying section naturally follows, or may be formed to overlap each other as another example. 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.

1, 3 and 5, the unidirectional control unit 140 is provided on the piston 120, and when the piston 120 moves, the working fluid moves between the first and second spaces 131 and 132 in one direction For example, as in the present embodiment, the door may be installed to move 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. The unidirectional control unit 140 includes control flow paths 141 and 142 formed to connect the first and second spaces 131 and 132 to the piston 120 and control flow paths 141 and 142 connected to the first space 131 and the control flow paths 141 and 142, And a check valve 143 that allows only one-way movement from the first space 132 to the second space 132. The control flow paths 141 and 142 include a first control flow path 141 formed to extend from the center of the end of the head 121 to the inside of the piston 120 and a second control flow path 141 extending from the end of the first control flow path 141 to the side of the piston 120 And a second control flow path 142 formed to be opened to a predetermined temperature. The first control flow passage 141 is connected to the first space 131 and the second control flow passage 142 is connected to the second space 132 regardless of the position of the piston 120. [ The check valve 143 may be installed in the first control passage 141 by screwing or interference fit, and may restrict the movement direction of the working fluid by a ball elastically supported by a spring, To open and close in one direction.

Referring to FIGS. 1, 3 and 7, the torsion device 200 includes a torsion housing part 210, a spring 220, a sliding member 230, a rotating member 240, and a rotary motion converting part 250 .

3, 7 and 8, the torsion housing unit 210 is fixed to one of the hinges 300, for example, the first hinge 310, and one end is blocked, and the sliding member 230 A plurality of sliding grooves 211 may be formed on the inner circumferential surface along the longitudinal direction so that the sliding grooves 212 are formed on the inner circumferential surface. And a tension adjusting bolt 213 for adjusting the tension of the spring 220 is screwed according to 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 at the end of the first housing 311 to fix the installation position by being hooked when the first housing 311 is inserted.

Referring to FIGS. 1, 3 and 7, 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 a coil compression spring as in the present embodiment. And the other end thereof may be supported by the sliding member 230. As shown in FIG.

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 may be formed with a coupling hole 232 to be engaged with the coupling portion 122 provided at the end of the piston 120 so as to be integrally formed with each other, And the engaging portion 122 at the end of the engaging portion 120 may be fixed.

The rotary member 240 is installed on the outer side of the piston 120 and is fitted to the sliding member 230 so as to be able to rotate relative to the sliding member 230. In the state where the movement in the longitudinal direction is restricted, And is fixed to the other hinge of the hinge device 300, for example, the second hinge 320. The hinge device 300 may be mounted on the hinge device 300, 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 300 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.

The rotation member 240 may be formed with an insertion portion 242 to be inserted into the sliding member 230. The insertion portion 242 may be formed on the sliding member 230 in the reverse direction. A washer 243 may be interposed between the rotary member 240 and the second sealing portion 112 of the damping device 100. The washer 243 is inserted into the piston 120 and is inserted into 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. [

Referring to FIGS. 3, 7 and 9, the rotary motion converting unit 250 includes guide protrusions 251 formed on any one of the sliding member 230 and the rotary member 240, A guide groove 252 to which the guide protrusion 251 is coupled is formed so as to be inclined in the reciprocating direction so that the rotational movement of the rotational member 240 and the linear motion of the sliding member 230 are mutually converted. The rotary motion converting unit 250 may include a plurality of, for example, two guide protrusions 251 along the outer circumferential surface of the fitting portion 242 of the rotary member 240, and the guide grooves 252 may be formed on the guide protrusions 251 For example, two at the portion where the fitting portion 242 is fitted in the sliding member 230 so as to correspond to the opening portion 242. [ The guide protrusion 251 may be formed to be inclined in the reciprocating direction for smooth movement in the guide groove 252.

The sliding member 230 may be formed with a plurality of detent protrusions 233 along the edge thereof so that the door protrusion 251 detached from the guide groove 252 is caught to stop the door from being closed until an external force is applied.

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

As shown in FIG. 3, the first and second hinges 310 and 320 (shown in FIGS. 1 and 2) 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 motion converting unit 250 (shown in FIGS. 7 and 8) To the rotary member 240 to maintain the closed state of the door. At this time, the guide protrusions 251 (shown in Figs. 7 and 8) of the rotary motion converting unit 250 are positioned in the guide grooves 252 (shown in Figs. 7 and 8).

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 2) of the hinge device 300 are rotated at an angle of 45 degrees with respect to each other The opening force of the door causes the rotary member 240 fixed to the second housing 321 of the second hinge 320 to rotate relative to the sliding member 230, 7 and 8) of the rotary motion converting portion 250 is moved along the guide groove 252 (shown in Figs. 7 and 8) by the rotation of the sliding member 230 Causes the spring 220 to start to linearly compress the spring 220, thereby causing the spring 220 to begin to accumulate more elastic force.

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, The working fluid in the first and second connecting passages 132 and 132 is connected to the main passages 133 and 134 and the connecting passages 113 and 114 and the connecting passages 133 and the passages 134 and the third connecting passage 115, The first control flow path 141 and the second control flow path 141 by the opening of the check valve 143. The control flow paths 141 and 142 are connected to the first control flow path 141, 142 are sequentially moved from the first space 131 to the second space 132 by passing the working fluid sequentially. The door is relatively easily opened by the one-way controller 140. 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 2) are 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, so that the working fluid in the first space 131 flows through the connecting passages 113, 114, and 115 and the main passages 133 and 134 Through the first to third connection flow paths 113, 114 and 115 and the flow path groove 134 and the connection hole 133 to move to the second space 132. At this time, Thereby blocking the movement of the working fluid through the control flow passages 141 and 142 so that the damping force is properly transmitted to the door.

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 so that the working fluid in the damping device 100 flows between the first and second spaces 131 and 132 through the flow passages 113, 114, 115, 133, 134, 141, Moving through all or part will cause damping forces.

The damping force of the damping device 100 can be adjusted for each section by the control flow passages 135 and 136 provided to bypass the head 121 of the piston 120 to the damping chamber 130. As a result, Can be controlled for each section.

FIG. 12 is an exploded perspective view showing a closure according to a second embodiment of the present invention, FIG. 13 is a perspective view showing a hinge apparatus having a closure according to a second embodiment of the present invention, and FIG. 2 is a cross-sectional view showing a closure according to an embodiment.

12 to 14, a closure damping chamber 430 according to a second embodiment of the present invention is included in the damping device 400, which is provided in the closure 20 A damping housing portion 410, a piston 420, a damping chamber 430, and a one-way control portion 440. [ Since the damping chamber 430 corresponds to the damping chamber of the closure according to the second embodiment of the present invention, the description thereof will be replaced with a description of the damping chamber of the closure. The closure damping device 400 according to the first embodiment of the present invention can be used in conjunction with the torsion device 500 wherein the elastic energy is accumulated by the opening force of the door, The damping device 400 of the closure provides the damping force through the torsion device 500 to adjust the closing speed of the door.

The closure damping device 400 according to the second embodiment of the present invention may include a first and second housings 311 and 321 arranged in a line so as to be able to rotate relative to each other in the hinge device 300 together with the torsion device 500, . The damping device 400 of the closure may be installed at one side of the first and the second housings 311 and 321, for example, at one side of the first housing 311, and the torsion device 500 may be provided with a torsion- And the first and second housings 311 and 321, respectively. Meanwhile, the hinge device 300 may be as described above, for example.

Referring to FIGS. 12 and 14, the damping housing part 410 may be filled with a working fluid, for example, oil, and first and second sealing parts 411 and 412 may be provided at both ends for sealing. Here, the first sealing portion 411 may be integrally formed at one end of the damping housing portion 410 as in the present embodiment, and a through hole may be formed to allow the piston 420 to pass therethrough. The second sealing portion 412 may be removably fixed to the inside of the other end of the damping housing portion 410 by a screw connection. A through hole may be formed for the piston 420 to pass therethrough. 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 20 as well. In addition, the damping housing part 410 may be formed with a locking protrusion 417 to be engaged with the first housing 311.

12, 14 and 15, the piston 420 is inserted into the damping housing part 410 through the second sealing part 412, and the head 421 . The piston 420 is coupled or fixed to the sliding member 530 of the torsion device 500 through a coupling member 535 screwed to a coupling portion 422 which is a female screw formed at the end of the rod, 530).

The piston 420 may be provided, for example, so that the rod extends to both sides of the head 421, both ends can be slidably coupled to the first and second hermetically sealed portions 411 and 412, The pressure in the first and second spaces 431 and 432 of the damping chamber 430 can be adjusted and the pressure in the first and second spaces 431 and 432 can be adjusted. The degree of opening of the bypass passage 423 can be adjusted by the damping adjusting bolt 424 screwed to one end exposed from the opening 411. The damping force of the damping control bolt 424 can be adjusted by controlling the amount of opening and closing of the bypass flow path 423 by tightening and loosening the damping adjusting bolt 424, 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. 12 and 14-16, the damping chamber 430 may include a body 438 and main flow paths 433, 434, and 435.

The body 438 is inserted and fixed in the damping housing portion 410 of the damping device 400 to fill the inner space 439 with the working fluid and the head 421 of the piston 420 of the damping device 400, Is divided into the first and second spaces 431 and 432 by the head 421 by being inserted into the inside. The body 438 is divided into first and second spaces 431 and 432 in which the inner space 439 is in contact with the first and second sealing portions 411 and 112 respectively by the head 421, (431, 432).

The body 438 may be formed of, for example, a cylindrical hollow member whose both ends are open, and both ends thereof may be fixed by the first and second sealing portions 411 and 112 in the damping housing portion 410.

The body 438 or the piston 420 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 438 is provided with a pressure relief portion 450 for allowing the working fluid to move from the first space 431 to the second space 432 when the pressure in the first space 431 is equal to or higher than a predetermined pressure . The pressure relief portion 450 includes a pressure relief conduit 451 formed to connect the first and second spaces 431 and 432 to the side of the body 438 and a pressure relief conduit 452 provided in the pressure relief conduit 451, And a pressure-relief valve 452 that opens when the pressure in the first space 431 is above a predetermined pressure. Where the pressure limiting valve 452 may be operable to open, for example, when the door is to be closed, if the pressure exceeds the pressure that may cause the body 438 to be damaged by the working fluid.

The main flow paths 433, 434 and 435 are formed in the body 438 of the damping chamber 430 so as to connect the first and second spaces 431 and 432 to the working fluid moving path between the first and second spaces 431 and 432 for damping, Lt; / RTI > The main flow paths 433, 434 and 435 have a connection hole 433 formed in the side of the body 438 of the damping chamber 430 to connect the second space 432 to the outside, 434 formed on the outer surface of the body 438 to connect the first space 431 to the first space 431 and the connection groove 434 formed on the outer surface of the body 438 to connect the second space 431 to the first space 431, (435). Thus, the main flow paths 433, 434, 435 can provide a movement path between the first and second spaces 431, 432 of the working fluid isolated from the self-reciprocating head 421 without the aid of other flow paths.

The channel groove 434 may be formed in a plane by a plane cutter so as to extend in the longitudinal direction from the connection hole 433 to the connection groove 435 on the outer surface of the cylindrical body 438, .

The damping chamber 430 may have at least one or more control flow passages 436 and 437 so that the working fluid moves between the first and second spaces 431 and 432 by bypassing the head 421 to the inner peripheral surface. A plurality of control flow paths 436 and 437 may be formed as in the present embodiment and two actuating valves 432 and 434 may be formed in the damping chamber 430 such that when the head 421 of the piston 420 moves within the damping chamber 430, The fluid moves from the first space 431 to the second space 432 or vice versa by bypassing the head 421. The control flow channels 436 and 437 allow adjustment of the damping force or the closing speed of each section with respect to the opening and closing region of the door corresponding to the position of the head 421 in the damping chamber 430.

The control flow paths 436 and 437 are formed to have a length greater than the thickness of the head 421 and are arranged in the damping chamber 430 in consideration of the position of the head 421 corresponding to the interval in which the closing speed of the door needs to be adjusted. The forming position and length can be determined. The control flow channels 436 and 437 may be formed so as to overlap each other with respect to the reciprocating direction of the head 421 so that the damping force change section naturally follows, for example. Alternatively, the control flow channels 436 and 437 may be formed to overlap each other as a whole. 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.

14, the unidirectional control unit 440 is provided in the main flow paths 433, 434, 435 of the damping chamber 430, and when the piston 420 is moved, the working fluid flows between the first and second spaces 431, 432 in one direction For example, a check valve installed to move the door in one direction from the first space 431 to the second space 432 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 one-way controller 440 in this embodiment can be installed in the connection hole 433 of the main flow paths 433, 434, 435 by screwing or interference fit, for example, The main flow paths 433, 434, and 435 can be opened and closed in one direction by limiting the moving direction of the working fluid.

12 to 14 and 17, the torsion device 500 includes a torsion housing portion 510, a spring 520, a sliding member 530, a rotary member 540, and a rotary motion converting portion 550 .

The torsion housing portion 510 is fixed to one of the hinges of the hinge device 300, for example, the first hinge 310. In order to slide the sliding member 530 inward, A plurality of, for example, two, sliding grooves 511 may be formed, and a screw groove 512 may be formed in the inner circumferential surface of one end. The spring 520 may be supported by the screw groove 512, The tension adjusting bolts 513 for adjusting the tension of the tension adjusting bolts 520 are screwed. The tension adjusting bolt 513 can adjust the compression amount or the elasticity of the spring 520 by changing the position of the tension adjusting bolt 513 in the torsion housing part 510 by the rotation of the tension adjusting bolt 513, 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 part 510 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 device 300 At least one or more fixing protrusions 514 may be formed on the outer surface of the first housing 311 so as to be fixed to the first housing 311 by being fitted into the fixing grooves formed inside the first housing 311 And a latching jaw 515 may be formed at an end of the first housing 311 to fix the installation position by being engaged when the first housing 311 is inserted.

The spring 520 is installed inside the torsion housing portion 510 to provide an elastic force in the longitudinal direction. The spring 520 may be formed of a coil compression spring as in the present embodiment. The spring 520 is supported at one end by the tension adjusting bolt 513, And can be supported by the sliding member 530.

The sliding member 530 is elastically supported by the spring 520 so that the sliding member 530 can reciprocate in the longitudinal direction in a state where the rotation of the sliding member 530 is suppressed in the torsion housing portion 510. When the piston 420 of the damping device 400 is reciprocated Lt; / RTI > The sliding member 530 is formed with a plurality of sliding protrusions 531 for sliding engagement with the respective sliding grooves 511 so as to reciprocate in a state in which the rotation is inhibited from the torsion housing portion 510 .

The sliding member 530 is configured such that the end of the engaging member 535 fixed to the piston 420 is movably coupled to the engaging groove 532 in the width direction so that the sliding member 530 is eccentric with the piston 420 during operation, Even if a compressive force or the like acts, the degree of freedom can be allowed to some extent, thereby preventing the self or the coupling member 535 or the piston 420 from being damaged by stress concentration or the like. Here, the engaging groove 532 may be formed to extend in the width direction at the end of the sliding member 530, for example, and may have a structure in which the end of the engaging member 535 is opened to be inserted in the width direction.

The rotating member 540 is fitted to the sliding member 530 so as to be rotatable relative to the sliding member 530 and is relatively movable relative to the sliding member 530 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 540 rotates relative to the sliding member 530 when the door is rotated. The rotary member 540 rotates relative to the sliding member 530 in the hinge device 300 by a bolt, a screw, or the like At least one fixing protrusion 541 may be provided on the outer surface of the second hinge 320 to be fixed to the fixing groove of the second housing 321.

A thrust bearing 543 may be interposed between the rotary member 540 and the second sealing portion 412 of the damping device 400. If necessary, a washer (not shown) The thrust bearing 543 may be inserted into the engaging member 535 and installed in the second housing 321. [ The relative rotation of the rotary member 540 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 540 is coupled to the door side by the hinge device 300 The rotation member 540 is coupled to the door frame by the hinge device 300 and the torsion housing part 510 is coupled to the door frame by the hinge device 300. In this case, The rotation member 540 may be rotated relative to the torsion housing part 510 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 550 includes a guide protrusion 551 formed at one of the portions where the sliding member 530 and the rotary member 540 are fitted to each other and a guide protrusion 551 is formed at the other end of the guide protrusion 551, (552) is inclined in the reciprocating direction to convert the rotational motion of the rotating member (540) and the linear motion of the sliding member (530) to each other.

The guide protrusion 551 can be inserted into the outer side of the rotary ring 553 that rotates when the guide protrusion 551 moves along the guide groove 552 and minimizes the resistance due to the frictional force when the rotary ring 553 moves along the guide groove 552 So that smooth operation is possible, and abrasion or damage due to friction can be prevented. The guide protrusion 551 is formed of a shaft member having both ends protruding through the fixing hole 533 formed in the fitting portion 534 of the sliding member 530 in the present embodiment in consideration of durability and assemblability have.

The guide groove 552 may be formed at a portion where the fitting portion 534 is fitted in the rotary member 540 corresponding to each of the guide protrusions 551 and may have a width suitable for accommodating the rotary ring 553. [ .

On the other hand, as in the present embodiment, the rotary member 540 is provided with a plurality of detent protrusions 542 along the edge thereof so that the guide protrusions 551 detached from the guide recesses 552 are caught, As shown in FIG.

A plurality of guide protrusions 551 may be formed along the outer circumferential surface of the fitting portion 542 of the rotary member 540 and the guide groove 552 may be formed in the sliding member 530 so as to correspond to the guide protrusions 551, For example, two at the portion where the fitting portion 542 is fitted.

The rotation member 540 may be formed with a plurality of detent protrusions 542 along the end thereof so that the guide protrusion 551 detached from the guide groove 552 is caught and the door stops closing until the external force is applied.

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

As shown in FIG. 14, the first and second hinges 310 and 320 (shown in FIGS. 12 and 13) 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 530 from the spring 520 of the torsion device 500 and the force applied from the sliding member 530 is transmitted to the rotary member 540 by the rotary motion converting unit 550 So that the door remains closed. At this time, the guide protrusion 551 of the rotary motion converting unit 550 is positioned in the guide groove 552.

When the door is opened at about 45 degrees by applying a force to the door as shown in FIG. 18, the first and second hinges 310 and 320 (shown in FIGS. 12 and 13) of the hinge device 300 are rotated at an angle of 45 degrees with respect to each other The opening force of the door causes the rotational member 540 fixed to the second housing 321 (shown in Figs. 12 and 13) of the second hinge 320 to rotate relative to the sliding member 530 The guide protrusion 551 of the rotary motion converting unit 550 moves along the guide groove 552 by the rotation of the rotary member 540 so that the sliding member 530 starts to linearly move, Thereby causing the elastic force of the spring 520 to start to accumulate more.

At this time, as the piston 420 of the damping unit 400 moves together with the sliding member 530, the compression of the working fluid starts to the second space 432 side by the piston 420. At this time, 432 move to the first space 431 through the main flow paths 433, 434, 435 with the check valve corresponding to the unidirectional control part 440 opened. On the other hand, the position of the piston 420 in the state 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 protrusion 551 and the guide groove 552 , And may be designed differently as needed.

As shown in FIG. 19, when the first and second hinges 310 and 320 (shown in FIGS. 12 and 13) are opened at 90 degrees by being opened at 90 degrees by the continuous opening of the door, The compression force and the movement of the working fluid are greater and the elastic force by the compression of the spring 520 is provided as a return force to close the door through the sliding member 530 and the rotary member 540 .

The elastic force accumulated in the spring 520 causes the sliding member 530 to linearly move back and the guide protrusion 551 of the rotary motion converting portion 550 moves in the guide groove 552 The rotary member 540 is rotated to close the door. At this time, the piston 420 moves together with the sliding member 530 to compress the working fluid toward the first space 432, whereby the working fluid in the first space 431 passes through the bypass flow path 423, The movement amount of the working fluid through the bypass flow path 423 can be adjusted to the damping adjusting bolt 424. [

The sliding member 530 is moved by the relative rotation of the rotary member 540 and the sliding member 530 when the door is opened by the hinge device 300 so as to compress the spring 520, The relative rotation of the sliding member 530 and the rotating member 540 causes the door to be closed by the return of the sliding member 530 by the spring 520 when the applied force is released. At this time, the working fluid is compressed by the movement of the piston 420 moving with the sliding member 530, whereby the working fluid in the damping device 400 moves between the first and second spaces 431 and 432, .

The damping force of the damping device 400 can be adjusted for each section by the adjusting flow passages 436 and 437 provided to bypass the head 421 of the piston 420 to the damping chamber 430. As a result, Can be controlled for each section.

According to the damping chamber of the closure and the damping device having the damping chamber according to the present invention, it is possible to easily form a working fluid flow path by being easily assembled to the housing part, and it is not required to have a comparatively high precision, And can contribute to the improvement of the reliability of the damping operation and the accurate intermittent operation of the working fluid. Further, the resistance of the working fluid can be accurately controlled, and the resistance of the working fluid can be easily controlled by intervals .

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 110: damping housing part
111: first sealing part 112: second sealing part
113, 114, 115: connecting flow path 116: damping adjusting bolt
117: latching jaw 120: piston
121: head 122:
130: damping chamber 131: first space
132: second space 133, 134:
135.136: Control valve 137: Body
138: Inner space 140: One-
141, 142: Control channel 143: Check 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 hole 233: stopping projection
240: Rotating member 241: Fixing projection
242: fitting portion 243: washer
250: rotational motion converting unit 251: guide projection
252: guide groove 300: hinge
310: first hinge 311: first housing
312: first wing 320: second hinge
321: second housing 322: second wing
400: damping device 410: damping housing part
411: first sealing part 412: second sealing part
417: Jaw 420: Piston
421: head 422:
423: Bypass flow path 424: Damping adjustment bolt
430: damping chamber 431: first space
432: second space 433, 434, 435:
436,437: Control valve 438: Body
439: Inner space 440: One-
450: pressure release part 451: pressure release flow path
452: Pressure limiting valve 500: Torsion device
510: Torsion housing part 511: Sliding groove
512: screw groove 513: tension adjusting bolt
514: Fixing projection 515:
520: spring 530: sliding member
531: Sliding projection 532: Coupling groove
533: Fixing hole 534:
535: engaging member 540: rotating member
541: Fixing projection 542: Stopping projection
543: thrust bearing 550: rotary motion converting section
551: guide projection 552: guide groove
553: rotating ring

Claims (20)

A damping chamber installed in a damping device of a closure,
A body inserted into the damping housing part of the damping device to be fixed into the inner space to fill the working space with the working fluid and the head of the damping device inserted into the inner space of the damping device into the first and second spaces; And
A connection hole formed on the side of the body to connect the second space with the outside and a flow groove formed on an outer side surface of the body to connect the connection hole to the first space side, A main flow path for providing a moving path of the working fluid isolated from the head;
Lt; / RTI >
The main flow path,
A connecting groove is formed at an end of the body so that the flow path groove is connected to the first space,
The main flow path,
A check valve is provided in the connection hole to allow the working fluid to move in one direction between the first and second spaces when the piston moves,
The body,
Wherein a pressure relief portion is provided 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 greater than a predetermined pressure. The method according to claim 1,
The body,
And a cylindrical member whose both ends are opened,
The flow-
Wherein the connection hole is formed by a surface cutter extending from the connection hole to the end at the outer surface of the body. The method according to claim 1,
The main flow path,
The flow path groove is connected to a first flow path formed to connect the first space and the edge side to a first sealing portion that blocks one end of the damping housing portion, Connecting the damping chamber of the closure. delete delete delete The method according to claim 1,
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;
The damping chamber of the closure. The method according to claim 1,
Wherein the damping chamber comprises:
Wherein at least one regulating passage is formed on the inner surface so that the working fluid moves between the first and second spaces by bypassing the head. The method of claim 8,
Wherein the damping chamber comprises:
Wherein a plurality of the control flow paths are formed, and each of the control flow paths is formed so as to partially overlap with the reciprocating direction of the head. delete delete delete delete delete 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 piston,
A bypass flow path is formed which connects both ends of the head to bypass the head, both ends of which are slidably coupled to the first and second hermetically closed portions, and are screwed to one end exposed from the first hermetically closed portion The opening degree of the bypass passage is adjusted by the damping adjusting bolt,
The main flow path,
A connection hole formed on a side of the body of the damping chamber to connect the second space with the outside;
A channel groove formed on an outer surface of the body to connect the connection hole to the first space side; And
A connecting groove formed at an end of the body so that the flow path groove is connected to the first space;
/ RTI >
The body,
Wherein a pressure relief portion is provided 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. delete delete delete 16. The method of claim 15,
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;
The damping device comprising: 16. The method of claim 15,
Wherein the damping chamber comprises:
Wherein at least one regulating passage is formed on the inner circumferential surface so that the working fluid moves between the first and second spaces by bypassing the head.

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