WO2011025251A2 - 자동 도어 클로우저 유닛 - Google Patents
자동 도어 클로우저 유닛 Download PDFInfo
- Publication number
- WO2011025251A2 WO2011025251A2 PCT/KR2010/005684 KR2010005684W WO2011025251A2 WO 2011025251 A2 WO2011025251 A2 WO 2011025251A2 KR 2010005684 W KR2010005684 W KR 2010005684W WO 2011025251 A2 WO2011025251 A2 WO 2011025251A2
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- door
- movable shaft
- closer unit
- main housing
- door closer
- Prior art date
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Classifications
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- E—FIXED CONSTRUCTIONS
- E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
- E05F—DEVICES FOR MOVING WINGS INTO OPEN OR CLOSED POSITION; CHECKS FOR WINGS; WING FITTINGS NOT OTHERWISE PROVIDED FOR, CONCERNED WITH THE FUNCTIONING OF THE WING
- E05F3/00—Closers or openers with braking devices, e.g. checks; Construction of pneumatic or liquid braking devices
- E05F3/20—Closers or openers with braking devices, e.g. checks; Construction of pneumatic or liquid braking devices in hinges
-
- E—FIXED CONSTRUCTIONS
- E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
- E05F—DEVICES FOR MOVING WINGS INTO OPEN OR CLOSED POSITION; CHECKS FOR WINGS; WING FITTINGS NOT OTHERWISE PROVIDED FOR, CONCERNED WITH THE FUNCTIONING OF THE WING
- E05F3/00—Closers or openers with braking devices, e.g. checks; Construction of pneumatic or liquid braking devices
- E05F3/04—Closers or openers with braking devices, e.g. checks; Construction of pneumatic or liquid braking devices with liquid piston brakes
- E05F3/08—Closers or openers with braking devices, e.g. checks; Construction of pneumatic or liquid braking devices with liquid piston brakes in which a torsion spring rotates a member around an axis arranged in the direction of the axis of the piston
-
- E—FIXED CONSTRUCTIONS
- E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
- E05F—DEVICES FOR MOVING WINGS INTO OPEN OR CLOSED POSITION; CHECKS FOR WINGS; WING FITTINGS NOT OTHERWISE PROVIDED FOR, CONCERNED WITH THE FUNCTIONING OF THE WING
- E05F3/00—Closers or openers with braking devices, e.g. checks; Construction of pneumatic or liquid braking devices
- E05F3/14—Closers or openers with braking devices, e.g. checks; Construction of pneumatic or liquid braking devices with fluid brakes of the rotary type
-
- E—FIXED CONSTRUCTIONS
- E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
- E05F—DEVICES FOR MOVING WINGS INTO OPEN OR CLOSED POSITION; CHECKS FOR WINGS; WING FITTINGS NOT OTHERWISE PROVIDED FOR, CONCERNED WITH THE FUNCTIONING OF THE WING
- E05F5/00—Braking devices, e.g. checks; Stops; Buffers
- E05F5/02—Braking devices, e.g. checks; Stops; Buffers specially for preventing the slamming of swinging wings during final closing movement, e.g. jamb stops
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- E—FIXED CONSTRUCTIONS
- E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
- E05F—DEVICES FOR MOVING WINGS INTO OPEN OR CLOSED POSITION; CHECKS FOR WINGS; WING FITTINGS NOT OTHERWISE PROVIDED FOR, CONCERNED WITH THE FUNCTIONING OF THE WING
- E05F3/00—Closers or openers with braking devices, e.g. checks; Construction of pneumatic or liquid braking devices
- E05F3/22—Additional arrangements for closers, e.g. for holding the wing in opened or other position
- E05F2003/228—Arrangements where the end of the closer arm is sliding in a track
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- E—FIXED CONSTRUCTIONS
- E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
- E05F—DEVICES FOR MOVING WINGS INTO OPEN OR CLOSED POSITION; CHECKS FOR WINGS; WING FITTINGS NOT OTHERWISE PROVIDED FOR, CONCERNED WITH THE FUNCTIONING OF THE WING
- E05F3/00—Closers or openers with braking devices, e.g. checks; Construction of pneumatic or liquid braking devices
- E05F3/04—Closers or openers with braking devices, e.g. checks; Construction of pneumatic or liquid braking devices with liquid piston brakes
- E05F3/12—Special devices controlling the circulation of the liquid, e.g. valve arrangement
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- E—FIXED CONSTRUCTIONS
- E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
- E05Y—INDEXING SCHEME RELATING TO HINGES OR OTHER SUSPENSION DEVICES FOR DOORS, WINDOWS OR WINGS AND DEVICES FOR MOVING WINGS INTO OPEN OR CLOSED POSITION, CHECKS FOR WINGS AND WING FITTINGS NOT OTHERWISE PROVIDED FOR, CONCERNED WITH THE FUNCTIONING OF THE WING
- E05Y2201/00—Constructional elements; Accessories therefore
- E05Y2201/20—Brakes; Disengaging means, e.g. clutches; Holders, e.g. locks; Stops; Accessories therefore
-
- E—FIXED CONSTRUCTIONS
- E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
- E05Y—INDEXING SCHEME RELATING TO HINGES OR OTHER SUSPENSION DEVICES FOR DOORS, WINDOWS OR WINGS AND DEVICES FOR MOVING WINGS INTO OPEN OR CLOSED POSITION, CHECKS FOR WINGS AND WING FITTINGS NOT OTHERWISE PROVIDED FOR, CONCERNED WITH THE FUNCTIONING OF THE WING
- E05Y2201/00—Constructional elements; Accessories therefore
- E05Y2201/20—Brakes; Disengaging means, e.g. clutches; Holders, e.g. locks; Stops; Accessories therefore
- E05Y2201/21—Brakes
-
- E—FIXED CONSTRUCTIONS
- E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
- E05Y—INDEXING SCHEME RELATING TO HINGES OR OTHER SUSPENSION DEVICES FOR DOORS, WINDOWS OR WINGS AND DEVICES FOR MOVING WINGS INTO OPEN OR CLOSED POSITION, CHECKS FOR WINGS AND WING FITTINGS NOT OTHERWISE PROVIDED FOR, CONCERNED WITH THE FUNCTIONING OF THE WING
- E05Y2201/00—Constructional elements; Accessories therefore
- E05Y2201/20—Brakes; Disengaging means, e.g. clutches; Holders, e.g. locks; Stops; Accessories therefore
- E05Y2201/252—Brakes; Disengaging means, e.g. clutches; Holders, e.g. locks; Stops; Accessories therefore characterised by type of friction
- E05Y2201/254—Fluid or viscous friction
-
- E—FIXED CONSTRUCTIONS
- E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
- E05Y—INDEXING SCHEME RELATING TO HINGES OR OTHER SUSPENSION DEVICES FOR DOORS, WINDOWS OR WINGS AND DEVICES FOR MOVING WINGS INTO OPEN OR CLOSED POSITION, CHECKS FOR WINGS AND WING FITTINGS NOT OTHERWISE PROVIDED FOR, CONCERNED WITH THE FUNCTIONING OF THE WING
- E05Y2201/00—Constructional elements; Accessories therefore
- E05Y2201/40—Motors; Magnets; Springs; Weights; Accessories therefore
- E05Y2201/404—Motors; Magnets; Springs; Weights; Accessories therefore characterised by the function
- E05Y2201/41—Motors; Magnets; Springs; Weights; Accessories therefore characterised by the function for closing
-
- E—FIXED CONSTRUCTIONS
- E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
- E05Y—INDEXING SCHEME RELATING TO HINGES OR OTHER SUSPENSION DEVICES FOR DOORS, WINDOWS OR WINGS AND DEVICES FOR MOVING WINGS INTO OPEN OR CLOSED POSITION, CHECKS FOR WINGS AND WING FITTINGS NOT OTHERWISE PROVIDED FOR, CONCERNED WITH THE FUNCTIONING OF THE WING
- E05Y2201/00—Constructional elements; Accessories therefore
- E05Y2201/40—Motors; Magnets; Springs; Weights; Accessories therefore
- E05Y2201/47—Springs; Spring tensioners
- E05Y2201/49—Wrap springs
-
- E—FIXED CONSTRUCTIONS
- E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
- E05Y—INDEXING SCHEME RELATING TO HINGES OR OTHER SUSPENSION DEVICES FOR DOORS, WINDOWS OR WINGS AND DEVICES FOR MOVING WINGS INTO OPEN OR CLOSED POSITION, CHECKS FOR WINGS AND WING FITTINGS NOT OTHERWISE PROVIDED FOR, CONCERNED WITH THE FUNCTIONING OF THE WING
- E05Y2900/00—Application of doors, windows, wings or fittings thereof
- E05Y2900/10—Application of doors, windows, wings or fittings thereof for buildings or parts thereof
- E05Y2900/13—Application of doors, windows, wings or fittings thereof for buildings or parts thereof characterised by the type of wing
- E05Y2900/132—Doors
Definitions
- the present invention relates to an automatic door closer unit, and is particularly easy to process with a simple structure, and can be independently provided with a hydraulic circuit for guiding oil at the time of opening and closing the door to ensure the operation stability, it is loaded inside An automatic door closer unit capable of blocking external leakage of oil.
- the door closer (door closer) is installed on a large iron door, such as a fire door is an automatic door closing device for gradually restoring to the original position automatically when the door is released after release.
- Such a conventional automatic door closer has a variety of structures that are applied according to the type of door.
- Korean Patent Publication No. 446221 which is filed and filed by the present applicant, discloses an automatic door closer unit capable of compactly forming a volume to improve commercial property and improving mechanical durability of a product.
- such a conventional door closer unit has a structure in which the flow control hydraulic circuit for controlling the closing speed of the door and the hydraulic circuit of the check valve are linked together to operate together to increase the cost of the product.
- the two hydraulic circuits are configured together in a non-isolated state, which has a problem in that the operation stability of the product is lowered due to the mutually influencing structure.
- the conventional door closer unit is installed so that the shaft penetrates through the outer housing, and the regulator is formed on the side, and in the event of a fire, the sealing oil is damaged by external heat, and the charged oil is easy to leak and leaks. There is a problem that the fire is transferred to the back of the fire door.
- the present invention has been proposed to solve the above problems, the object of which is to provide a damping hydraulic circuit for guiding the oil at the time of opening and closing the door and a hydraulic circuit for controlling the closing speed of the door independently to ensure the operation stability It is an object of the present invention to provide an automatic door closer unit that can easily adjust the closing speed of the door.
- Another object of the present invention is to provide an automatic door closer unit suitable for a fire door because it is possible to prevent the external leakage of the oil loaded therein.
- Another object of the present invention is to adopt the spiral spring with the lowest stress change value, the user can open the door without a great force, and when the door is closed, it is possible to smoothly perform the door closing operation by providing sufficient elastic force An automatic door closer unit is provided.
- Another object of the present invention is to provide an automatic door closer unit that can prevent the occurrence of breakdown of the hydraulic circuit by the metal chip by removing the source of the metal chip due to the friction between the components during operation. have.
- the present invention is installed in the door and the bottom is closed cylindrical main housing;
- a damper housing installed at an upper portion so as to divide the main housing into upper and lower chambers and having an oil loaded therein and a fixed vane protruding toward the center;
- a cover fixedly coupled to an upper portion of the main housing while maintaining the airtightness of the damper housing;
- One end is extended to the outside through the cover and at the same time rotatably supported, the other end is rotatably supported on the lower surface of the main housing through the damper housing, the one end extending outward is connected to the door frame through the link ;
- a movable vane integrally formed on an outer circumferential portion of the movable shaft to partition the interior of the damper housing into first and second chambers together with the fixed vanes;
- a return spring installed in the lower chamber, the return spring storing stresses upon opening the door and providing a restoring force for restoring the movable shaft to an initial setting position when the door is closed;
- damping means for controlling
- the damping means is installed in a first hydraulic circuit capable of flowing the first and second chambers provided in the movable vane to open the first hydraulic circuit when the door is opened, and to open the first hydraulic circuit when the door is closed. It may include a check valve for blocking.
- the automatic door closer unit preferably further comprises a closing speed control means for controlling the closing speed of the door by controlling the amount of oil flow that can flow between the first and second chambers.
- the closing speed control means includes a second hydraulic circuit capable of flowing the first and second chambers through the central portion of the movable shaft from the front and rear ends of the movable vanes; And installed in the second hydraulic circuit may include a speed adjusting bolt for controlling the closing speed of the door by controlling the oil flow amount of the second hydraulic circuit.
- the second hydraulic circuit may include a first flow passage extending from the front end of the movable vane to the center of the movable shaft and communicating with the first chamber; A second flow path formed in parallel with the first flow path, the second flow path extending from a rear end of the movable vane to a central portion of the movable shaft and communicating with the second chamber; And a connection flow passage communicating vertically with the first and second flow passages, wherein the speed adjusting bolt is screwed vertically to the movable shaft to adjust the opening degree of the connection flow passage.
- the check valve may include: a first hydraulic circuit formed in the movable vane and capable of flowing first and second chambers; And a ball valve installed in the first hydraulic circuit to open the flow path when the door is opened and to close the flow path when the door is closed.
- the automatic door closer unit to control the closing speed of the door by angle by reducing the damping force generated by the damping means for each predetermined angle section when the movable shaft and the movable vane rotates in the closing direction of the door. It may further include a closing speed control means for each angle.
- the closing speed control means for each angle includes at least one acceleration groove forming at least one acceleration section along the arc on the bottom surface of the damper housing, the section in which the acceleration groove is not formed to delay the closing speed of the door It is preferable to set the delay section for the.
- the automatic door closer unit is formed along the inner circumferential surface of the damper housing on one side of the fixed vane, the initial position setting projection for setting the initial position of the door; And an opening angle limiting member installed at the other side of the fixed vane to limit the opening angle of the door.
- the automatic door closer unit may include a first bearing installed at a bottom of the main housing to rotatably support a lower portion of the movable shaft; And a second bearing, the upper portion of which is installed on the cover to rotatably support the upper portion of the movable shaft.
- the return spring is preferably a spiral spring, one end is fixed to the main housing and the other end is fixed to the movable shaft, the spiral spring is installed in the main housing in a state of retaining the elastic force, the final closing force when the door is closed In order to provide, it may be installed in the main housing in a state rotated by a predetermined angle in one direction.
- the present invention is installed on the top of the door frame rail member having a rail; A link member whose one end is connected to an upper portion of the movable shaft; And a roller member slidably connecting the other end of the link member to the rail member.
- the door closer unit is installed in the door, the upper portion of the movable shaft is connected to the door frame through a two-section link, the door closer unit is preferably installed in the door using a fixing bracket.
- a butterfly-type hinge includes an extension part extending from one side of the main housing to form a contact surface contacting the door, a first hinge bent at an angle from the extension part, and fixed to the side of the door, and The lower portion may include a second hinge coupled to both ends of the movable shaft extending from the main housing to the upper / lower portion and bent at right angles therefrom and fixed to the side of the door frame.
- the invention is installed on the top of the door frame rail member having a rail groove;
- a door closer unit installed at an upper side of the door to provide an automatic return force to the door when the door is opened;
- a link member whose one end is connected to an upper portion of the movable shaft of the door closer unit;
- a roller member for connecting the other end of the link member to be slidably moved along the rail groove of the rail member.
- the present invention unlike the prior art through the damper housing and the movable shaft, by independently configuring the hydraulic circuit of the oil moving between the first and second chambers when the door is opened and closed, thereby improving operation stability It is possible to improve the function of check valve, and to adjust the closing speed of door more precisely through speed adjusting bolt.
- the present invention simplifies the structure of individual parts, minimizes the number of parts, and adopts a detachable coupling structure that is easy to assemble between each part, excellent processing and assemblability, it is possible to maintain a compact size as a whole.
- the present invention adopts the spiral spring having the lowest stress change value, so that the user can open the door without applying great force, and when the door is closed, the door can be smoothly provided by providing sufficient elastic force.
- FIG. 1 is a perspective view showing an automatic door closer unit according to an embodiment of the present invention
- FIG. 2 is a longitudinal sectional view showing the automatic door closer unit shown in FIG. 1;
- FIG. 3 is a plan view showing a state in which a spiral spring is installed in the main housing
- FIG. 5 is a plan view showing a damper housing
- FIG. 6 is a schematic diagram showing an open position of a door corresponding to a delay section and an acceleration section of the door closing speed shown in FIG. 5;
- 7 and 8 are cross-sectional views showing the movable shaft, respectively;
- 9 to 11 is a schematic plan view showing the opening and closing state of the check valve according to the door opening section
- FIGS. 12 and 13 are views showing an example in which the automatic door closer unit according to an embodiment of the present invention is installed in the sliding arm type
- FIG. 14 and 15 are views showing an example of installing the automatic door closer unit according to an embodiment of the present invention in the link arm type
- 16 to 19 are perspective views of the automatic door closer unit according to an embodiment of the present invention configured as a butterfly hinge type, a plan view of the first hinge, a partial cross-sectional view of the second hinge, and an example of installation of the door. .
- FIG. 1 is a perspective view showing a door closer unit according to an embodiment of the present invention
- Figure 2 is a longitudinal cross-sectional view showing a door closer unit shown in Figure 1
- Figure 3 is a spiral spring is installed in the main housing 4
- FIG. 5 is a plan view showing the damper housing
- FIG. 6 is a delay section D1, D2 of the door closing speed shown in FIG. , D3)
- FIGS. 7 and 8 are cross-sectional views showing the movable shafts, respectively.
- the door closer unit 1 includes a main housing 10, a spiral spring 30, a damper housing 50, a movable shaft 70, and a cover. (90).
- the main housing 10 is formed in a substantially cylindrical shape with an upper end open and a lower end closed.
- a spiral spring 30, a damper housing 50, and a movable shaft 70 are formed inside. It is inserted and the open top is closed by the cover 90. As such, the main housing 10 is closed at its lower end, thereby essentially preventing incompressible oil filled in the inner or damper housing from leaking from the lower end of the main housing 10.
- the main housing 10 is provided with a lower chamber 10a into which the spiral spring 30 is inserted into the lower part of the inner side, and an upper chamber 10b into which the damper housing 50 is inserted into the inner upper part.
- the upper chamber 10b has a larger diameter than the lower chamber 10a, and due to the diameter difference between the first and upper chambers 10a and 10b, the first and formulation space portions 10a and 10b are formed.
- the boundary of the damper housing 50 is formed with a stepped step 10c is seated.
- the lower chamber 10a has a pair of spring fixing grooves 11a and 11b symmetrically formed at both sides on an inner circumferential surface thereof.
- a predetermined oil may be injected into the lower chamber 10a to maintain lubrication and durability of the spiral spring 30, and absorb noise generated when the spiral spring 30 is operated.
- the spiral spring 30 serves as a return spring for providing a restoring force for restoring the movable shaft 70 to an initial setting position when the door D is compressed and when the door D is closed.
- the spiral spring 30 is used as the return spring.
- the spiral spring 30 may be used as long as the movable shaft 70 is restored to the initial setting position such as the torsion spring.
- the upper chamber 10b has a plurality of damper housing fixing grooves 13 formed in the circumferential direction along an inner circumferential surface thereof, and a threaded portion 14 in which the outer circumference of the cover 90 is screwed is formed thereon.
- the main housing 10 has a bearing insertion groove 15a in which the lower bearing B1 is inserted in the bottom surface, and a bearing groove in which the lower end of the movable shaft 70 is seated with a step in the center of the bearing insertion groove 15a. 15b is formed.
- the main housing 10 has a fixed bracket 20 is coupled to the rear, it is fixed to the door (D) through the fixed bracket (20).
- a fixed bracket 20 is coupled to the rear, it is fixed to the door (D) through the fixed bracket (20).
- the spiral spring 30 is a right hand, and the outermost end 31 is fixed to the left spring fixing groove 11a of the pair of spring fixing grooves 11a and 11b.
- the innermost end 33 is fixed to a slit 79 (see FIG. 7) formed in the lower portion 70c of the movable shaft 70 described later. Accordingly, the spiral spring 30 rotates the movable shaft 70 to the door closed position by the elastic force when the external force applied to the door D is lost after the door D is opened.
- the spiral spring 30 has the lowest elastic modulus compared to the torsion spring or compression spring used in the conventional door closer, so that the user can open the door (D) without great force.
- the damper housing 50 is formed in a cylindrical shape with an open top and the height is somewhat lower than the height of the upper chamber 10b.
- the damper housing 50 has a through hole 51 through which the movable shaft 70 rotatably penetrates in the center of the bottom surface, and a central portion 50b of the movable shaft 70 is mounted along the periphery of the through hole 51.
- the first mounting groove 53 is formed.
- the damper housing 50 is integrally formed with a fixed vane 54 protruding toward the center on one side of the inner peripheral surface.
- the fixed vane 54 is coupled to the first packing 54a along the tip, and the first packing 54a is in close contact with the outer circumferential surface of the central portion 70b of the movable shaft 70.
- the fixed vane 54 divides the inside of the damper housing 50 into first and second chambers C1 and C2 together with the rotary vane 74 to be described later.
- the damper housing 50 has a protrusion 55 for initial position setting of the door D along one inner side of the damper housing 50 on one side of the fixed vane 54, and the door D on the other side of the fixed vane 54.
- An opening angle limiting member 56 for limiting the opening angle of the is installed.
- the opening angle limiting member 56 is fixed by a fixing protrusion 52 provided at one side 56a adjacent to the fixed vane 54, and the other side 65b is formed to bend to limit the rotation of the rotating vane 74. do.
- the angle between the tip 55a of the initial position setting projection 55 and the other side 56b of the opening angle limiting member 56 is arranged to correspond to the opening angle of the desired door D.
- the damper housing 50 is formed with a plurality of engaging projections 57 are respectively coupled to the plurality of damper housing fixing grooves 13 along the outer periphery.
- the plurality of coupling protrusions 57 are coupled to the fixing groove 13 to prevent the damper housing 50 from rotating together with the movable shaft 70 in the upper chamber 10b when the movable shaft 70 is rotated. .
- the damper housing 50 has first to third acceleration grooves 58a, 58b, and 58c formed at predetermined intervals in a circumferential direction on a bottom surface thereof.
- the first to third acceleration grooves 58a, 58b and 58c serve as passages through which oil moves from the first chamber C1 to the second chamber C2 when the door is closed.
- the first to third acceleration grooves 58a, 58b, and 58c are first to third acceleration sections S1, S2, and S3 for accelerating the closing speed when the door is closed.
- the periods D1 and D3 between the first acceleration grooves 58a and the periods D2 and D3 between the first to third acceleration grooves 58a, 58b, and 58c are the first to third delay periods D1 for delaying the closing speed. , D2, D3).
- the first to third acceleration sections S1, S2, and S3 and the first to third delay sections D1, D2, and D3 are opened as shown in Table 1 below. Corresponds to the angle respectively.
- the first to third acceleration sections S1, S2, and S3 and the first to third delay sections D1, D2, and D3 are alternately arranged, and accordingly, the closing speed of the door D is appropriately adjusted.
- the closed door D can prevent a person from being injured or the door D colliding strongly with the door frame.
- the third delay section D3 finally delays the closing speed of the door D to protect when the hand is caught between the door D and the door frame D1
- the third acceleration section ( S3) is a section in which the latch (not shown) of the door D accelerates to be locked to a locking groove (not shown) installed in the door frame D1.
- first to third acceleration grooves (58a, 58b, 58c) may be formed of different lengths and widths according to the type of the door to properly adjust the closing speed of the door.
- the damper housing 50 has a second mounting groove 59 in which the lower end of the cover 90 is mounted along the upper inner circumference thereof.
- the movable shaft 70 has first and second flow paths 71a and 71b formed inside the center portion 70b.
- the first and second flow paths 71a and 71b are formed in a direction perpendicular to the axial direction of the movable shaft 70 and communicate with each other by a connection channel 71c formed in the axial direction of the movable shaft 70.
- the first and second flow paths 71a and 71b and the connection flow path 71c form a second hydraulic circuit that determines the closing speed of the door when the door D is closed.
- the movable shaft 70 has a speed adjusting bolt 73 detachably inserted in the center of the movable shaft 70 along the axial direction of the movable shaft 70 from the tip of the upper portion 70a to the connecting passage 71c. Is installed.
- the speed adjusting bolt 73 is sealed by a plurality of O-rings (O1) in the movable shaft 70 to prevent the leakage of oil.
- the tip 73c of the speed adjusting bolt 73 adjusts the opening degree of the connection flow path 71c to pass through the connection flow path 71c.
- the closing speed of the door D is adjusted by controlling the amount of oil.
- the speed adjusting bolt 73 is formed in the head portion 73a is an adjustment groove 73b into which the tip of the driver can be inserted, so that the user can easily adjust the speed adjusting bolt 73 by using a tool such as a driver. Can be rotated.
- the second hydraulic circuit and the speed adjusting bolt 73 form a closing speed control means of the door.
- the movable shaft 70 protrudes from one surface of the central portion 70b to a position adjacent to the inner circumferential surface of the damper housing 50.
- the rotary vane 74 is coupled to the second packing 74a along the tip, and the second packing 74a is in close contact with the inner circumferential surface of the damper housing 50.
- the rotary vane 74 also has a check valve 77 for moving the oil in the first and second chambers C1 and C2 only in one direction when the rotary vane 74 is rotated together with the movable shaft 70.
- the check valve 77 allows the oil in the second chamber C2 to move to the first chamber C1 when the door is opened, while the oil in the first chamber C1 moves to the second chamber C2 when the door is closed. Moving limits. Accordingly, when the door is closed, the oil in the first chamber C1 sequentially moves through the first flow path 71a, the connection flow path 71c, and the second oil flow path 71b to move to the second chamber C2.
- the check valve 77 is provided with an oil through hole 75 penetrating through the rotating vane 74 and a ball valve 77a that is movable in the oil through hole 75 to open and close the oil through hole 75.
- the oil passage hole 75 is formed such that the first inlet 75a communicating with the first chamber C1 is larger than the second inlet 75b communicating with the second chamber C2, and the first inlet ( A pin 78 is provided on the side of 75a to prevent the ball valve 77a from being separated from the oil passage hole 75.
- the oil through hole 75 passing through the rotary vane 74 forms a first hydraulic circuit.
- check valve 77 is shown as a type using the ball valve 77a in the above-described embodiment, it is also possible to have a check valve structure of another type well known as a plate valve.
- the movable shaft 70 when the movable shaft 70 is inserted into the through hole 51 of the damper housing 50, the movable shaft 70 is sealed by the O-ring O2 so that oil in the damper housing 50 leaks into the main housing 10. To prevent them.
- the movable shaft 70 is formed with a fixing slot 79 in which the other end 53 of the spiral spring 30 is inserted and fixed to the lower portion 70c.
- sealing is performed between the first and second chambers C1 and C2 through the first and second packings 54a and 74a.
- the sealing process may be simplified as a whole.
- the cover 90 closes the open end of the upper portion of the main housing 10, and at the same time, the main housing 10 and the damper housing 50 through a plurality of O-rings O3, O4, and O5. ) And the movable shaft 70 is sealed.
- the cover 90 has a through hole 91 through which the upper portion 70a of the movable shaft 70 penetrates, and the bearing B2 provided in the bearing insertion groove 92 around the through hole 91.
- the cover 90 has a separation prevention projection 93 protruding along the inner circumference of the through hole 91 in order to prevent the separation of the movable shaft 70.
- the door closer unit according to the exemplary embodiment of the present invention configured as described above is assembled through the following process.
- the bearing B1 is press-fitted into the bearing insertion groove 15a of the main housing 10, and then the spiral spring 30 is inserted into the lower chamber 10a. In this case, one end 31 of the spiral spring 30 is fixed to the spring fixing groove 11a of the main housing 10.
- O-rings O2 and O5 are attached to the outer circumference of the movable shaft 70, and the second packing 74a is attached to the rotary vane 74 of the movable shaft 70.
- the first packing 54a is mounted on the fixed vane 54 of the damper housing 50.
- the movable shaft 70 is coupled to the through hole 51 of the damper housing 50 to be modularized.
- the rotary vane 74 of the movable shaft 70 is positioned at an initial setting position indicated at a predetermined position on the damper housing 50.
- a combination of the movable shaft 70 and the damper housing 50 is first inserted into the upper chamber 10b of the main housing 10.
- the movable shaft 70 and the spiral spring 30 are connected to each other by inserting the other end 33 of the spiral spring 30 into the fixed slit 79 of the movable shaft 70.
- the door closer unit of the present invention has the last closing force of the door (D), that is, the latch (not shown) of the door (D) when the door (D) is closed to the locking groove (not shown) of the door frame (D1) Has a force that can be inserted.
- the O-rings O3 and O4 are mounted on the outer circumference of the cover 90, and the bearing B2 is inserted into the bearing insertion groove 92, and then the cover 90 is screwed into the main housing 10. do.
- the cover 90 is completely coupled to the main housing 10
- the lower surface of the cover 10 is tightly coupled to the upper inner side of the damper housing 50 to seal the inside of the damper housing 50.
- the state in which the door D is closed is a state in which the rotary vane 74 is in close contact with the front end 55a of the initial position setting protrusion 55.
- the rotary vane 74 continuously rotates clockwise toward the opening angle limiting member 56, and the oil in the second chamber C2 is oiled. It moves to the first chamber C1 through the passage hole 75.
- the spiral spring 30 has an elastic force increases as the opening angle of the door D gradually increases.
- the door D is provided with a closing force by which the latch of the door D is inserted into the locking groove of the door frame D1 by the last acceleration section S3.
- the starting point of the acceleration section S3 is shown in FIG.
- the door D is located at about 5 degrees.
- the door closer unit 1 is a sliding arm type as shown in Figs. 12 and 13 and the link arm type as shown in Figs. It can be installed in (D).
- a rail member 110 of a predetermined length installed on the upper end of the door frame D1 and one end of the movable shaft 70 of the door closer unit 1 is provided.
- the link member 130 is connected to the upper portion 70a. In this case, the other end of the link member 130 is slidably connected to the rail member 110 through the roller member 120.
- the roller member 120 includes a first member 121 sliding along the rail groove 111 of the rail member 110, a second member 123 hinged to the other end of the link member 130, and And a connecting screw 125 for fastening the first and second members 121 and 123 to each other.
- the sliding arm type slides in a state in which the link member 130 is connected to the rail member 110 at the same time as the door member swings and opens and closes the door.
- a first link rod 210 having one end hinged to a bracket 211 fixed to an upper end of a door frame D1 and one end of a first link rod
- a second link rod 230 hinged to the other end of the 210 and the other end is fixedly connected to the upper portion 70a of the movable shaft 70 of the door closer unit 1.
- the first link rod 210 serves as a driven link
- the second link rod 230 serves as a drive link
- the first and second link rods 210 and 230 are folded when the door is closed, and are unfolded when the door is open.
- Reference numeral H shown in FIGS. 13 and 15 denotes a hinge connecting the door and the door frame, and 251 and 253 denote spacers, respectively.
- the automatic door closer unit is installed on the upper side of the door and the structure of interconnecting the upper door frame through the linkage device of the sliding arm type and the link arm type is provided, but the mounting bracket structure of the automatic door closer unit is shown. 16 to 19 can be installed in a hinge structure of the butterfly type to be installed between the side of the door (D) and the door frame (D1).
- the door closer unit may be installed in the hinge (310, 320) of the butterfly type on the side of the door (D).
- the door closer unit 100 has a main housing 100a having a cylindrical shape, and an upper portion 70a and a lower portion 70d of the movable shaft 70 extend outwardly on the upper and lower portions of the main housing 100a. It protrudes.
- the door closer unit 100 forms a contact surface contacting the door D with a wide area from one side of the main housing 100a, and an extension portion 101 serving as a reinforcement plate is formed, and the extension portion (
- the first hinge 310 is bent and extended at a right angle from 101 to be fixed to the side of the door (D).
- the first hinge 310 is formed with a screw hole 311 to be fixed to the door using a plurality of fixing screws.
- the second hinge 320 provided in correspondence with the first hinge 310, the upper portion (70a) and the lower portion (70d) of the movable shaft (70) extending from the main housing (100a) up / down, respectively
- the upper and lower coupling parts 324 and 325 are rotatably coupled to each other, and the upper and lower coupling parts 324 and 325 are connected through the connection part 323.
- the upper and lower coupling parts 324 and 325 are each formed with a contact surface of a plane contacting the door frame D1 on one side similarly to the first hinge 310, and is bent and extended at right angles from one side of the contact surface to the door frame D1.
- the upper and lower hinges 321 and 322 are fixed to the side surfaces thereof.
- screw holes 326 are formed in the upper and lower hinges 321 and 322 to be fixed to the door frame D1 using a plurality of fixing screws, and the connector 323 is also fixed to the door frame D1.
- the screw hole 327 is formed.
- the door closer unit 100 of the present invention is installed with butterfly first and second hinges 310 and 320 on the side of the door D and the door frame D1 as shown in FIG. 19, in this case the first and second hinges.
- the hinges 310 and 320 are not displayed because they are inserted between the door D and the door frame D1.
- one side end of the door D is coupled between the first hinge 310 and the extension 101 at the time of installation, and the upper and lower hinges 321 and 322 and the upper and lower coupling portions of the second hinge 320.
- One side end of the door frame (D1) is installed between the (324,325).
- the first hinge 310 has an extension portion 101 serving as a reinforcement plate from the main housing 100a at right angles
- the second hinge 320 also has upper and lower hinges 321 and 322 and upper and lower portions. Since the lower coupling parts 324 and 325 are formed at right angles, even if a strong external force such as a strong wind is applied to the door D, the force is dispersed to have great durability.
- the present invention is independent of the hydraulic circuit of the oil moving between the first and second chambers when the door D is opened and closed through the damper housing 50 and the movable shaft 70, unlike the prior art. According to the configuration, it is possible to improve the operation stability and improve the check valve function, it is possible to more accurately vary the closing speed of the door (D) through the speed adjustment bolt (73).
- the present invention can be easily processed and assembled by simplifying the configuration, and the size can be kept compact.
- the present invention adopts the spiral spring 30 having the lowest stress change value, so that the user can open the door D without applying a large force, and provides sufficient elastic force when the door is closed to smoothly close the door operation. Can be done.
- the present invention relates to an automatic door closer unit of a direct control type of rotational movement that directly controls the rotational movement of the door, and can be usefully applied to doors for building materials, in particular, fire doors.
Abstract
Description
도어 개방각도 | 가속구간 | 지연구간 |
180도~100도 | - | D1 |
100~70도 | S1 | - |
70도~50도 | - | D2 |
50도~13도 | S2 | - |
13도~5도 | - | D3 |
5도~0도 | S3 | - |
Claims (15)
- 도어에 설치되며 하부가 폐쇄된 통 형상의 메인 하우징;상기 메인 하우징을 상부 및 하부 챔버로 구획하도록 상부에 설치되며 내측에 오일이 장입되고 고정베인이 중앙으로 돌출된 댐퍼 하우징;상기 댐퍼 하우징의 기밀을 유지하면서 메인 하우징의 상부에 고정 결합되는 커버;일단이 상기 커버를 통하여 외부로 연장됨과 동시에 회전 가능하게 지지되고 타단이 상기 댐퍼 하우징을 통하여 메인 하우징의 하단면에 회전 가능하게 지지되며, 외부로 연장된 일단이 링크를 통하여 문틀에 연결되는 가동샤프트;상기 가동샤프트의 외주부에 일체로 형성되어 상기 고정베인과 함께 상기 댐퍼 하우징 내부를 제1 및 제2 챔버로 구획하는 가동베인;상기 하부 챔버에 설치되어, 도어의 개방 시에 압축되고 도어의 닫힘시에 가동샤프트를 초기설정위치로 복원시키기 위한 복원력을 제공하는 리턴스프링; 및상기 도어의 개방 및 닫힘 속도를 제어하며, 상기 리턴스프링의 복원력에 따라 가동샤프트와 가동베인이 도어의 닫힘 방향으로 회전하는 경우에 선택적으로 댐핑 기능을 제공하는 댐핑수단;을 포함하는 것을 특징으로 하는 자동 도어 클로우저 유닛.
- 제1항에 있어서, 상기 댐핑수단은상기 가동베인에 구비된 제1 및 제2 챔버를 유동할 수 있는 제1 유압회로에 설치되어 도어 개방시에 제1 유압회로를 개방하고, 도어의 닫힘 시에 제1 유압회로를 차단하는 체크밸브를 포함하는 것을 특징으로 하는 자동 도어 클로우저 유닛.
- 제1항에 있어서, 상기 제1 및 제2 챔버 사이를 유동할 수 있는 오일 유동량을 제어하여 도어의 닫힘속도를 제어하기 위한 닫힘속도제어수단을 더 포함하는 것을 특징으로 하는 자동 도어 클로우저 유닛.
- 제3항에 있어서, 상기 닫힘속도제어수단은상기 가동베인의 전단과 후단으로부터 가동샤프트의 중앙부를 통하여 제1 및 제2 챔버를 유동할 수 있는 제2 유압회로; 및상기 제2 유압회로에 설치되어 제2 유압회로의 오일 유동량을 제어하여 도어의 닫힘속도를 제어하기 위한 속도조절볼트를 포함하는 것을 특징으로 하는 자동 도어 클로우저 유닛.
- 제4항에 있어서, 상기 제2 유압회로는상기 가동베인의 전단으로부터 가동샤프트의 중앙부로 연장되어 상기 제1 챔버와 연통되는 제1 유로;상기 제1 유로와 다른 높이로 평행하게 형성되며, 상기 가동베인의 후단으로부터 가동샤프트의 중앙부로 연장되어 상기 제2 챔버와 연통되는 제2 유로; 및상기 제1 및 제2 유로를 수직으로 연통하는 연결유로;를 포함하며,상기 속도조절볼트는 상기 가동샤프트에 수직으로 나사결합되어, 상기 연결유로의 개방 정도를 조절하는 것을 특징으로 하는 자동 도어 클로우저 유닛.
- 제2항에 있어서, 상기 체크밸브는,상기 가동베인에 형성되어 제1 및 제2 챔버를 유동할 수 있는 제1 유압회로; 및상기 제1 유압회로 내에 설치되어 도어 개방시 유로를 개방하고, 도어 닫힘 시 유로를 폐쇄하는 볼밸브;를 포함하는 것을 특징으로 하는 자동 도어 클로우저 유닛.
- 제1항에 있어서, 상기 가동샤프트와 가동베인이 도어의 닫힘 방향으로 회전할 때 상기 댐핑수단에 의해 발생되는 댐핑력을 미리 설정된 각도 구간마다 감소시켜 도어의 닫힘 속도를 각도별로 제어하기 위한 각도별 닫힘속도제어수단을 더 포함하는 것을 특징으로 하는 자동 도어 클로우저 유닛.
- 제7항에 있어서, 상기 각도별 닫힘속도제어수단은 댐퍼 하우징의 바닥면에 원호를 따라 적어도 하나의 가속구간을 형성하는 적어도 하나의 가속홈을 포함하며,상기 가속홈이 형성되지 않은 구간은 도어의 닫힘 속도를 지연시키기 위한 지연구간으로 설정되는 것을 특징으로 하는 자동 도어 클로우저 유닛.
- 제1항에 있어서, 상기 고정베인의 일측에 댐퍼 하우징의 내주면을 따라 형성되어 도어의 초기위치를 세팅하기 위한 초기위치 세팅용 돌기; 및상기 고정베인 타측에 설치되어 도어의 개방각도를 제한하는 개방각제한부재를 더 포함하는 것을 특징으로 하는 자동 도어 클로우저 유닛.
- 제1항에 있어서, 상기 메인 하우징의 바닥에 설치되어 상기 가동샤프트의 하부를 회전 가능하게 지지하기 위한 제1베어링; 및상부가 상기 커버에 설치되어 상기 가동샤프트의 상부를 회전 가능하게 지지하기 위한 제2베어링을 더 포함하는 것을 특징으로 하는 자동 도어 클로우저 유닛.
- 제1항에 있어서, 상기 리턴 스프링은 탄성력을 보유한 상태로 상기 메인 하우징에 설치하여 도어 닫힘 시 최종 닫힘력을 제공하기 위해, 일방향으로 미리 설정한 각도만큼 회전한 상태로 상기 메인 하우징에 설치되는 것을 특징으로 하는 자동 도어 클로우저 유닛.
- 제1항에 있어서, 문틀 상단에 설치되며 레일홈을 구비하는 레일부재;일단이 상기 가동샤프트의 상부에 연결되는 링크부재; 및상기 링크부재의 타단을 레일홈을 따라 슬라이딩 가능하게 이동하도록 연결하는 롤러부재를 더 포함하는 것을 특징으로 하는 자동 도어 클로우저 유닛.
- 제1항에 있어서, 상기 도어 클로우저 유닛은 도어에 설치되고, 상기 가동샤프트의 상부는 2절 링크를 통하여 문틀에 연결되는 것을 특징으로 하는 자동 도어 클로우저 유닛.
- 제1항에 있어서, 상기 메인하우징의 일측으로부터 연장되어 도어에 접촉되는 접촉면을 형성하는 연장부를 구비하고 상기 연장부로부터 직각으로 절곡 연장되어 도어의 측면에 고정되는 제1경첩과,각각 상기 메인하우징으로부터 상/하부로 연장된 가동샤프트의 양단부에 결합되는 상부 및 하부 결합부와 연결부를 구비하고 상부 및 하부 결합부로부터 직각으로 절곡 연장되어 문틀의 측면에 고정되는 제2경첩을 더 포함하는 것을 특징으로 하는 자동 도어 클로우저 유닛.
- 제1항에 있어서, 상기 도어 클로우저 유닛은 상호간에 착탈 가능하게 결합되는 고정브라켓을 사용하여 도어에 설치되는 것을 특징으로 하는 자동 도어 클로우저 유닛.
Priority Applications (2)
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CN201080037788.3A CN102844515B (zh) | 2009-08-26 | 2010-08-25 | 自动门板闭合单元 |
US13/392,284 US8677561B2 (en) | 2009-08-26 | 2010-08-25 | Automatic door closure unit |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
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KR10-2009-0079324 | 2009-08-26 | ||
KR1020090079324A KR100965943B1 (ko) | 2009-08-26 | 2009-08-26 | 자동 도어 클로우저 유닛 |
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WO2011025251A2 true WO2011025251A2 (ko) | 2011-03-03 |
WO2011025251A3 WO2011025251A3 (ko) | 2011-06-30 |
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PCT/KR2010/005684 WO2011025251A2 (ko) | 2009-08-26 | 2010-08-25 | 자동 도어 클로우저 유닛 |
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US (1) | US8677561B2 (ko) |
KR (1) | KR100965943B1 (ko) |
CN (1) | CN102844515B (ko) |
WO (1) | WO2011025251A2 (ko) |
Families Citing this family (12)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN103306562B (zh) * | 2013-07-12 | 2015-12-09 | 秦源 | 螺旋滚动传动机构 |
AU2014317826B2 (en) | 2013-09-09 | 2018-05-10 | Yale Security, Inc. | Apparatus for connecting door closer or operator to swing door |
US10480229B2 (en) * | 2017-02-13 | 2019-11-19 | Ford Global Technologies, Llc | Rotary hinge assembly |
DE102017112176A1 (de) * | 2017-06-02 | 2018-12-06 | Gretsch-Unitas GmbH Baubeschläge | Türanordnung |
CN107191085A (zh) * | 2017-06-26 | 2017-09-22 | 济南大学 | 一种门用缓冲器 |
CN107762327B (zh) * | 2017-11-20 | 2023-01-13 | 苏州升德精密电气有限公司 | 一种旋转弹脱开闭器 |
EP3802369A4 (en) * | 2018-05-30 | 2022-04-06 | MGB Rentals PTY, Ltd. | HINGE SYSTEM FOR THE LID OF A WASTE CONTAINER |
KR102196609B1 (ko) | 2019-10-29 | 2020-12-30 | 한국수력원자력 주식회사 | 도어 시스템 |
KR102196610B1 (ko) | 2019-10-29 | 2020-12-30 | 한국수력원자력 주식회사 | 도어 시스템 |
CN112576675A (zh) * | 2020-12-30 | 2021-03-30 | 赣州禾盈通用零部件有限公司 | 一种旋转阻尼器 |
CN113104401B (zh) * | 2021-03-03 | 2022-12-09 | 广州旺朝餐饮管理有限公司 | 一种菜品智能保鲜设备 |
CN113057455B (zh) * | 2021-04-12 | 2022-11-15 | 江西白莲智能科技集团有限公司 | 一种智能储物柜 |
Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS51122927A (en) * | 1975-04-19 | 1976-10-27 | Tokico Ltd | Door closer |
KR200190952Y1 (ko) * | 2000-03-16 | 2000-08-01 | 김성기 | 도어 클로우저용 자동 스토퍼 |
KR20030080750A (ko) * | 2002-04-10 | 2003-10-17 | 우생윤 | 자동 도어 클로우저 유니트 |
KR20060009722A (ko) * | 2004-07-26 | 2006-02-01 | 세원정밀주식회사 | 회전식 오일 댐퍼 |
KR20080078317A (ko) * | 2007-02-23 | 2008-08-27 | 박철수 | 도어클로저 |
Family Cites Families (17)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2115968A (en) * | 1936-07-06 | 1938-05-03 | Kaywood Corp | Door check |
US2493116A (en) * | 1946-08-19 | 1950-01-03 | G G Bakewell | Door closer |
US2490258A (en) * | 1948-05-24 | 1949-12-06 | G G Bakewell | Hydraulically controlled hinge |
US2707796A (en) * | 1949-09-01 | 1955-05-10 | Otis J Hawks | Door check and closer |
US3357040A (en) * | 1965-03-10 | 1967-12-12 | Cardinal Of Adrian | Door closer |
JPS5724839Y2 (ko) * | 1977-03-19 | 1982-05-29 | ||
ES295448Y (es) * | 1986-06-25 | 1987-09-01 | Zeljko Bebek Vuksic | Bisagra de resorte con amortiguador, perfeccionada |
JPH0446470Y2 (ko) * | 1986-11-10 | 1992-10-30 | ||
JPH0681873B2 (ja) * | 1990-05-23 | 1994-10-19 | スガツネ工業株式会社 | ドアクローザー |
KR100202260B1 (ko) * | 1997-03-04 | 1999-06-15 | 우생윤 | 자동도어 클로우저 유니트 |
US6253417B1 (en) * | 1999-09-30 | 2001-07-03 | Architectural Builders Hardware Mfg., Inc. | Door holder and stop with retaining means for holding a door shut while in a closed position |
US6629334B2 (en) * | 2000-01-11 | 2003-10-07 | Yueh-Nu Huang | Structure of a hinge |
DE20215983U1 (de) * | 2002-10-17 | 2003-02-27 | Lin Wu Shiong | Türschließer |
US7155776B2 (en) * | 2003-06-10 | 2007-01-02 | I-One Innotech Co., Ltd. | Multipurpose hinge apparatus having automatic return function |
CN1280512C (zh) * | 2003-12-31 | 2006-10-18 | 世元精密株式会社 | 旋转型油阻尼器 |
KR100761904B1 (ko) * | 2006-08-08 | 2007-09-28 | 주식회사 아이원이노텍 | 건자재용 도어의 자동복귀 힌지장치 |
US7865999B2 (en) * | 2007-02-02 | 2011-01-11 | Yale Security Inc. | Door motion controller assembly |
-
2009
- 2009-08-26 KR KR1020090079324A patent/KR100965943B1/ko active IP Right Grant
-
2010
- 2010-08-25 CN CN201080037788.3A patent/CN102844515B/zh not_active Expired - Fee Related
- 2010-08-25 WO PCT/KR2010/005684 patent/WO2011025251A2/ko active Application Filing
- 2010-08-25 US US13/392,284 patent/US8677561B2/en not_active Expired - Fee Related
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS51122927A (en) * | 1975-04-19 | 1976-10-27 | Tokico Ltd | Door closer |
KR200190952Y1 (ko) * | 2000-03-16 | 2000-08-01 | 김성기 | 도어 클로우저용 자동 스토퍼 |
KR20030080750A (ko) * | 2002-04-10 | 2003-10-17 | 우생윤 | 자동 도어 클로우저 유니트 |
KR20060009722A (ko) * | 2004-07-26 | 2006-02-01 | 세원정밀주식회사 | 회전식 오일 댐퍼 |
KR20080078317A (ko) * | 2007-02-23 | 2008-08-27 | 박철수 | 도어클로저 |
Also Published As
Publication number | Publication date |
---|---|
CN102844515B (zh) | 2015-08-19 |
CN102844515A (zh) | 2012-12-26 |
WO2011025251A3 (ko) | 2011-06-30 |
US8677561B2 (en) | 2014-03-25 |
US20120144623A1 (en) | 2012-06-14 |
KR100965943B1 (ko) | 2010-06-24 |
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