US20070001562A1 - Self closing device for a slide and slide having this - Google Patents

Self closing device for a slide and slide having this Download PDF

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Publication number
US20070001562A1
US20070001562A1 US10/553,401 US55340105A US2007001562A1 US 20070001562 A1 US20070001562 A1 US 20070001562A1 US 55340105 A US55340105 A US 55340105A US 2007001562 A1 US2007001562 A1 US 2007001562A1
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United States
Prior art keywords
moving pin
movable
slide
support
self
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Abandoned
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US10/553,401
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English (en)
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Yoon-Sik Park
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Individual
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Individual
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Priority claimed from KR20-2004-0036684U external-priority patent/KR200377907Y1/ko
Application filed by Individual filed Critical Individual
Publication of US20070001562A1 publication Critical patent/US20070001562A1/en
Abandoned legal-status Critical Current

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    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47B—TABLES; DESKS; OFFICE FURNITURE; CABINETS; DRAWERS; GENERAL DETAILS OF FURNITURE
    • A47B88/00—Drawers for tables, cabinets or like furniture; Guides for drawers
    • A47B88/40—Sliding drawers; Slides or guides therefor
    • A47B88/453—Actuated drawers
    • A47B88/46—Actuated drawers operated by mechanically-stored energy, e.g. by springs
    • A47B88/467—Actuated drawers operated by mechanically-stored energy, e.g. by springs self-closing

Definitions

  • the present invention relates to a self-closing apparatus for a slide and a slide having this, and more particularly to a self-closing apparatus for a slide, which automatically moves a drawer to a completely closed position by means of elastic force of springs when the drawer moves toward the closed position, and a slide having the self-closing apparatus.
  • slides are mounted to an item, for example, a cabinet, in which a drawer is received, in such a manner that a pair of slides are symmetrically mounted to opposite side walls of the cabinet defining a space for receiving the drawer, in order to slidably move the drawer between a closed position and an open position.
  • Such slides are mainly used in drawers of tables, clothes chests, and dressers, and may be used in any item, such as a Kimchi refrigerator, including a drawer or drawers slidable between a closed position and an open position with respect to the body of item.
  • PCT Publication No. WO 2001-82749 discloses a mechanism for a self-closing slide which includes a guide pin, a spring, an actuator, and a housing.
  • the spring and actuator of the mechanism are coupled to the guide pin such that the spring urges the actuator toward a rear wall of the housing.
  • the spring is in a compressed state at an open position of the slide, and is in a normal state at a closed position of the slide. The spring is not stretched, and is thus not broken.
  • the housing of the above mechanism includes rear, front, upper and two opposite side walls, and has a structure for receiving all of the guide pin, spring, and actuator. That is, the housing has a box-shaped structure within which the guide pin, spring, and actuator are placed.
  • a box-shaped housing cannot be easily manufactured, and requires high production costs.
  • a plurality of legs are formed integrally with the housing. For this reason, there are problems of a more complex manufacturing process and an increase in manufacturing costs.
  • the present invention has been made in view of the above problems, and it is an object of the present invention to provide a self-closing apparatus for a slide, which automatically moves a drawer to a completely closed position by tensile force of springs and prevents the spring from being early broken and has a simple structure.
  • a self-closing apparatus comprising: a pair of springs; a moving pin; a moving pin guide; a plate-shaped movable member; and a plate-shaped fixed member.
  • the moving pin comprises a support pin portion having a cylindrical shape, a support plate, and a guide protrusion.
  • the moving pin guide comprises a moving pin guide slot and first coupling means.
  • the moving pin guide slot is formed by a pin-receiving inlet portion defined by two inlet surfaces and a pin engaging portion defined by three engaging surfaces.
  • the movable member comprises a plate portion centrally provided with a hole, sliding rods formed integrally with the plate portion, and spring support portions to which first ends of the springs are respectively coupled.
  • the fixed member may comprises a support base comprising spring support portions, to which second ends of the springs are respectively coupled, an extension bar comprising movable member sliding portions formed at opposite longitudinal sides of the extension bar, and a moving pin guide portion formed at an intermediate portion of the extension bar, a head, and second coupling means.
  • Each sliding rod of the movable member comprises a protrusion and a sliding groove.
  • the moving pin guide portion of the fixed member comprises a rectilinear guide portion and a curved guide portion.
  • the moving pin guide may be fixed to a movable rail of the slide by the first coupling means such that the moving pin guide is moved together with the movable rail.
  • the fixed member is fixed to a fixed rail of the slide by the second coupling means.
  • the moving pin is slidably coupled to the moving pin guide portion of the fixed member.
  • the movable member sliding portions of the fixed member is slidably engaged with the sliding grooves of the movable member under a condition in which the support pin portion of the moving pin is inserted in the hole of the movable member, so that the moving pin moves integrally with the movable member along the moving pin guide portion of the fixed member when the movable member slides along the movable member sliding portions of the fixed member.
  • the moving pin of the self-closing apparatus when the slide is in an extended state, the moving pin of the self-closing apparatus is located at the curved guide portion of the moving pin guide portion of the fixed member.
  • the moving pin When the slide is in a retracted state, the moving pin is located at an inner end of the rectilinear guide portion of the moving pin guide portion.
  • the self-closing apparatus automatically closes the slide.
  • the self-closing apparatus of the present invention prevents early breakage of springs, has a simple structure and low production costs, and is easily returned from an abnormal operating state to a normal operating state.
  • an engagement groove is formed at one of three engaging surfaces of the pin engaging portion.
  • tapered portions are formed at a portion near the ends of the spring.
  • the extension bar of the fixed member comprises protrusions being parallel with the movable member sliding portions while being close to the movable member sliding portions.
  • a movable rail support is formed on a surface of the movable member to support and guide the movable rail.
  • FIG. 1 is a cross sectional view of a three-member slide
  • FIG. 2 is a perspective view of a three-member slide having a self-closing apparatus in accordance with the present invention
  • FIG. 3 is a perspective view of the self-closing apparatus in accordance with the present invention.
  • FIG. 4 is a perspective view of a moving pin
  • FIGS. 5A to 5 C are a perspective, rear, and front views respectively of a moving pin guide
  • FIGS. 6A and 6B are a perspective and front views respectively of an embodiment of a movable member
  • FIG. 6C is a sectional view of the movable member seen from the direction of “B” of FIG. 6A ;
  • FIGS. 7A and 7B are a front and rear view respectively of a fixed member
  • FIG. 8 is a partial sectional view taken along the line A-A of FIG. 7A ;
  • FIG. 9 is a perspective view illustrating a state in which only the moving pin is engaged with the fixed member
  • FIGS. 10A and 10B are front views respectively illustrating a state in which the moving pin is located at one end of a rectilinear guide portion of a moving pin guide portion of the fixed member, and a state in which the moving pin is located at a curved guide portion of the moving pin guide portion of the fixed member;
  • FIG. 11 is a schematic view illustrating a state in which the moving pin is separated from the moving pin guide
  • FIG. 12 is a schematic view illustrating a state in which the moving pin guide is coupled to the moving pin located at the curved guide portion;
  • FIG. 13 is a schematic view illustrating a state in which the moving pin guide is coupled to the moving pin and is located at a completely retracted position of the slide by the force of springs;
  • FIG. 14A is a perspective view of an alternate embodiment movable member
  • FIG. 14B is a sectional view of the movable member seen from the direction of “B” of FIG. 14A ;
  • FIG. 15 is a schematic view illustrating an abnormal state of the self-closing apparatus of the present invention.
  • slides may be two-member slides (including a fixed rail and a movable rail) or three-member slides (including a fixed rail and two movable rails).
  • a three-member slide 10 is illustrated.
  • the three-member slide comprises a fixed rail (outer member) 800 and two movable rails, i.e., an intermediate movable rail (intermediate member) 900 sliding within the fixed rail 800 and an inner movable rail (inner member) 700 sliding within the intermediate movable rail 900 ( FIGS. 1 and 2 ).
  • Ball retainers 950 having proper lengths are positioned between adjacent rails. Balls 955 are retained by the ball retainers 950 , respectively, thereby allowing the movable rails 700 and 900 to smoothly slide.
  • the slide 10 is used to slidably move a drawer 960 between a closed position and an open position in a cabinet (not shown).
  • the fixed rail 800 of the slide 10 is attached to a proper position of the cabinet and drawer 960 is coupled to the inner movable rail 700 by fastening means such as screws fastened through coupling holes 720 . Accordingly, movement of the drawer 960 causes sliding of the inner movable rail 700 and/or the intermediate movable rail 900 .
  • the slide 10 At a completely closed position of the drawer 960 , the slide 10 is in a completely retracted state (a completely retracted state of the movable rails).
  • the slide 10 is in a completely extended state (a completely extended state of the movable rails).
  • a self-closing apparatus 20 for a slide in accordance with the present invention is mounted to the rearmost end of the fixed rail 800 .
  • a rail groove 910 is formed at the rearmost end of the intermediate movable rail 900 to receive a part of the self-closing apparatus 20 .
  • FIG. 3 is a perspective view of the self-closing apparatus 20 in accordance with a preferred embodiment of the present invention.
  • the self-closing apparatus 20 comprises a moving pin 400 , a movable member 200 , a fixed member 100 , and a pair of springs 500 .
  • the self-closing apparatus 20 further comprises a moving pin guide 300 ( FIG. 11 ) coupled to the inside of the inner movable rail 700 and separably engaged with the moving pin 400 .
  • the moving pin 400 includes a guide protrusion 410 formed at one end of the moving pin 400 , a support pin portion 430 formed at the other end of the moving pin 400 , and a support plate 420 formed between the guide protrusion 410 and the support pin portion 430 .
  • the moving pin 400 also includes a groove 411 formed between the guide protrusion 410 and the support plate 420 .
  • the support pin portion 430 of the moving pin 400 has a cylindrical shape.
  • FIGS. 5A to 5 C are a perspective, rear, and front views respectively of the moving pin guide 300 .
  • a moving pin guide slot 350 is formed at the moving pin guide 300 ( FIG. 5A ), and includes a pin-receiving inlet portion 310 and a pin engaging portion 320 ( FIG. 5B ).
  • the pin-receiving inlet portion 310 includes a first inlet surface 311 and a second inlet surface 312
  • the pin engaging portion 320 includes a first rectilinear engaging surface 323 , a second rectilinear engaging surface 324 , and a curved engaging surface 325 .
  • an engagement groove 328 is formed at the second rectilinear engaging surface 324 of the pin engaging portion 320 .
  • the detailed function of the moving pin guide slot 350 will be described later.
  • the moving pin guide 300 includes first coupling means for coupling the moving pin guide 300 to the inner movable rail 700 ( FIG. 11 ) of the slide 10 .
  • FIGS. 5A to 5 C illustrate a hole 330 , serving as the first coupling means, in which a coupling protrusion 710 of the inner movable rail 700 is fitted.
  • elastic blocks 340 are respectively formed at opposite longitudinal sides of the moving pin guide 300 .
  • the elastic blocks 340 are slightly diverged from each other in a state of being outwardly protruded from the associated longitudinal sides of the moving pin guide 300 , respectively, as they extend rearward.
  • a buffering groove 341 is formed around each elastic block 340 . Since the elastic blocks 340 are diverged from each other in a state of outwardly protruded from the associated longitudinal sides of the moving pin guide 300 , FIG.
  • FIG. 5B illustrating the rear surface of the moving pin guide 300 (here, the rear surface refers to the surface of the moving pin guide 300 coupled to the inner movable rail 700 of the slide 10 ), shows that the elastic blocks 340 are protruded from the longitudinal side surfaces of the moving pin guide 300 .
  • FIG. 5C illustrating the front surface of the moving pin guide 300 , shows that the opposite longitudinal edges of the moving pin guide 300 are rectilinear.
  • the elastic blocks 340 When the moving pin guide 300 is inserted into the inner movable rail 700 of the slide 10 , the elastic blocks 340 is elastically deformed to allow an easy insertion of the moving pin guide 300 (since the self-closing apparatus of the present invention including the moving pin guide 300 is made of a proper plastic material, the elastic blocks 340 have an elasticity).
  • the elastic blocks 340 serve to prevent the moving pin guide 300 from being separated from the inner movable rail 700 of the slide 10 .
  • the moving pin guide 300 is easily inserted into the inner movable rail 700 and firmly fixed to the inner movable rail 700 by the first coupling means and the elastic blocks 340 .
  • FIGS. 6A and 6B are a perspective and front views respectively of the movable member 200
  • FIG. 6C is a sectional view of the movable member 200 seen from the direction of “B” of FIG. 6A
  • the movable member 200 includes a substantially rectangular plate portion 210 , sliding rods 220 formed integrally with the plate portion 210 , and spring support portions 212 respectively formed at opposite longitudinal sides of the plate portion 210 .
  • Each sliding rod 220 includes a protrusion 221 and a U-shaped sliding groove 222 .
  • Movable member sliding portions 121 of the fixed member 100 which will be described later, are respectively engaged in the sliding grooves 222 of the sliding rod 220 .
  • the spring support portions 212 are formed at an end of the plate portion 210 opposite to an engaging surface 223 .
  • any linear spring may be used as the springs. That is, any linear spring, both end portions of which have a hooked or tapered shape, may be used.
  • tapered linear springs which have the tapered portions respectively formed at a portion near the end of the spring are used.
  • the tapered spring 500 ( FIGS. 10A and 10B ) can be used for a prolonged period of time without breakage even when a heavy load of the drawer is applied to the slide, as compared to the hooked linear spring.
  • each tapered spring 500 is received in an associated one of the spring support portions 212 .
  • a hole 211 is centrally formed through the plate portion 210 .
  • the support pin portion 430 of the moving pin 400 shown in FIG. 4 is inserted into the hole 211 from the direction of the sliding grooves 222 .
  • the hole 211 has a length corresponding to a transversal length C ( FIG. 7A ) of a moving pin guide portion 123 formed at the fixed member 100 so that the support pin portion 430 received in the hole 211 can move transversely.
  • a buffering portion 213 for absorbing impact which is applied to the movable member 200 when the movable member 200 collides with another member, is formed on one end of the plate portion 210 .
  • FIGS. 7A and 7B are a front and rear view respectively of the fixed member 100 .
  • the rear surface of the fixed member 100 refers to the surface of the fixed member 100 coupled to the fixed rail 800 ( FIG. 11 ) of the slide.
  • the fixed member 100 includes a support base 110 , an extension bar 120 formed integrally with the support base 110 , and a head 130 formed integrally with the extension bar 120 .
  • the entire structure of the fixed member 100 has a plate shape.
  • Stoppers 119 are formed where the support base 110 meets the extension bars 120 at the side of the support base 110 connected to the extension bars 120 .
  • Spring support portions 111 are formed both sides of the support base 110 . Each spring support portion 111 receives the other end of an associated one of the springs 500 .
  • the spring support portions 111 have a structure corresponding to that of the spring support portions 212 of FIG. 6A .
  • the moving pin guide portion 123 is longitudinally formed in the extension bar 120 .
  • the moving pin guide portion 123 includes a rectilinear guide portion 124 and a curved guide portion 125 .
  • the moving pin 400 is inserted into the moving pin guide portion 123 to slide along the moving pin guide portion 123 .
  • Movable member sliding portions 121 which are inserted into respective sliding grooves 222 of the movable member 200 , are formed at opposite sides of the extension bar 120 .
  • protrusions 122 are formed on the extension bar 120 to extend parallel with the movable member sliding portions 121 while being close to the movable member sliding portions 121 .
  • the protrusions 122 serve as supporters for preventing the movable member 200 from being bent or twisted even when transversal or longitudinal compressing force is applied to the movable member 200 .
  • a buffering space 126 is formed at one end of the rectilinear guide portion 124 of the moving pin guide portion 123 of the extension bar 120 .
  • the buffering space 126 is connected to the moving pin guide portion 123 , and extends parallel with the moving pin guide portion 123 .
  • a support protrusion 127 is formed between the moving pin guide portion 123 and the buffering space 126 .
  • a twist preventing protrusion 128 for preventing the support protrusion 127 from twisting is formed at the support protrusion 127 on the rear surface of the fixed member 100 . The functions of the buffering space 126 and twist preventing protrusion 128 will be described later.
  • an impact buffering portion 132 is formed at the head 130 of the fixed member 100 .
  • the impact buffering portion 132 serves to absorb impact. The above collision may be generated when the rail reaches a retracted position.
  • Second coupling means for coupling the fixed member 100 to the fixed rail 800 of the slide is provided at the support base 110 and head 130 of the fixed member 100 .
  • the second coupling means comprises coupling holes 112 and 131 for riveting.
  • FIG. 9 is a perspective view illustrating a state in which only the moving pin 400 is engaged with the fixed member 100 .
  • This engagement is achieved by inserting the moving pin 400 into the moving pin guide portion 123 such that the groove portion 411 of the moving pin 400 formed between the guide protrusion 410 and the support plate 420 is engaged with the moving pin guide portion 123 of the fixed member 100 under the condition in which the guide protrusion 410 is directed to the rear surface of the fixed member 100 , and the support pin portion 430 is directed to the front surface of the fixed member 100 .
  • the above insertion is easily achieved by simply pushing the guide protrusion 410 of the moving pin 400 to pass through the moving pin guide portion 123 while pushing the support protrusion 127 toward the buffering space 126 of the fixed member 100 .
  • the movable member 200 is coupled to the fixed member 100 . Coupling is achieved by inserting the support pin portion 430 of the moving pin 400 into the hole 211 of the movable member 200 , and inserting the movable member sliding portions 121 of the fixed member 100 into the sliding grooves 222 of the movable member 200 .
  • FIG. 3 is a perspective view illustrating the self-closing apparatus completely assembled in the above-described manner.
  • the movable member 200 is slidable along the movable member sliding portions 121 of the fixed member 100 .
  • the moving pin 400 is moved along the moving pin guide portion 123 of the fixed member 100 because the moving pin 400 is moving together with the movable member 200 .
  • FIGS. 10A and 10B are front views illustrating a coupled state of the fixed member 100 , movable member 200 , moving pin 400 , and springs 500 .
  • FIG. 10A illustrates a state in which the moving pin 400 is positioned at one end of the rectilinear guide portion 124 of the moving pin guide portion 123 of the fixed member 100
  • FIG. 10B illustrates a state in which the moving pin 400 is positioned at the curved guide portion 125 of the moving pin guide portion 123 of the fixed member 100 .
  • the moving pin 400 moves between the above two positions.
  • the springs 500 are maximally stretched.
  • the fixed member 100 to which the moving pin 400 , movable member 200 , and springs 500 are coupled, is coupled to the fixed rail 800 of the slide by the second coupling means, and the moving pin guide 300 is coupled to the inner movable rail 700 of the slide by the first coupling means.
  • the slide is a three-member slide including two movable rails (an intermediate movable rail and an inner movable rail) and one fixed rail.
  • the intermediate movable rail positioned between the inner movable rail 700 and the fixed rail 800 will be omitted.
  • the drawer and the walls of the cabinet will be omitted, and only the slide will be described.
  • the fixed member 100 is fixed to the fixed rail 800
  • the moving pin guide 300 is fixed to the inside of the inner movable rail 700 such that the moving pin guide 300 faces the fixed member 100 , the moving pin guide 300 is not shown, but, for convenience, is shown by a solid line.
  • FIG. 11 is a schematic view illustrating a state in which the fixed member 100 is separated from the moving pin guide 300 under the condition that the fixed member 100 is riveted to the fixed rail 800 of the slide, and the moving pin guide 300 is coupled to the coupling protrusion 710 of the inner movable rail 700 of the slide.
  • the inner movable rail 700 of the slide moves from an extended position toward a retracted position.
  • the moving pin 400 which is inserted in the hole 211 of the movable member 200 to move integrally with the movable member 200 , is in a state of being positioned at the curved guide portion 125 of the moving pin guide portion 123 of the fixed member 100 .
  • the springs 500 are in a maximally stretched state.
  • FIG. 12 is a schematic view illustrating a state in which the moving pin guide 300 is coupled to the moving pin 400 , particularly to the support pin portion 430 , positioned at the curved guide portion 125 when the inner movable rail 700 further moves toward the retracted position.
  • the support pin portion 430 of the moving pin 400 is inserted into the pin-receiving inlet portion 310 defined by the first inlet surface 311 and second inlet surface 312 , and is then moved along the first rectilinear engaging surface 323 and second rectilinear engaging surface 324 of the pin engaging portion 320 . This movement separates the moving pin 400 from the curved guide portion 125 .
  • the movable member 200 and the moving pin 400 moving integrally with the movable member 200 are moved along the rectilinear guide portion 124 by the tensile force of the springs 500 . Then, the movable member 200 and moving pin 400 move to a completely retracted position along the rectilinear guide portion 124 of the fixed member 100 until the engaging surface 223 ( FIG. 6A ) of the movable member 200 is engaged with the stoppers 119 of the fixed member 100 , thereby causing the inner movable rail 700 of the slide to automatically move to the completely retracted position.
  • the engagement groove 328 is formed at the second rectilinear engaging surface 324 .
  • the engagement groove 328 is formed at a position, at which the support pin portion 430 of the moving pin 400 is engaged with the engagement groove 328 just when the moving pin 400 is separated from the curved guide portion 125 . Accordingly, as soon as the moving pin 400 is separated from the curved guide portion 125 , the support pin portion 430 of the moving pin 400 is safely engaged with the engagement groove 328 , and is moved along the rectilinear guide portion 124 .
  • FIG. 13 is a schematic view illustrating a state in which the moving pin guide 300 and the support pin portion 430 of the moving pin 400 have been moved to the completely retracted position of the slide (that is, the completely closed state of the drawer) by the force of springs 500 .
  • the extension of the slide is performed in the reverse order of the above process.
  • the moving pin 400 which has been in the state of FIG. 13 , is moved along the rectilinear guide portion 124 under the condition that the support pin portion 430 of the moving pin 400 is engaged with the engagement groove 328 .
  • the support pin portion 430 of the moving pin 400 is separated from the engagement groove 328 , and is then moved along the second rectilinear engaging surface 324 toward the pin-receiving inlet portion 310 .
  • the moving pin 400 When the support pin portion 430 moves along the second rectilinear engaging surface 324 , and reaches the pin-receiving inlet portion 310 , the moving pin 400 is engaged with the curved guide portion 125 of the moving pin guide portion 123 of the fixed member 100 (the state shown in FIG. 12 ). Further movement of the moving pin 400 toward the extended position separates the moving pin 400 from the pin-receiving inlet portion 310 of the moving pin guide 300 , so that the moving pin 400 is separated from the moving pin guide 300 .
  • the state, in which the moving pin guide 300 moves toward the extended position after being separated from the moving pin 400 corresponds to the state of FIG. 11 .
  • the moving pin 400 is positioned at the curved guide portion 125 of the fixed member 100 .
  • the pin engaging portion 320 of the moving pin guide 300 coupled to the inner movable rail 700 is coupled to the support pin portion 430 of the moving pin 400 , and is then pulled by the tensile force of the springs 500 to move along the rectilinear guide portion 124 of the fixed member 100 .
  • the movement of the pin engaging portion 320 along the rectilinear guide portion 124 of the fixed member 100 is continued until the engaging surface 223 of the movable member 200 is engaged with the stoppers 119 of the fixed member 100 .
  • the drawer is automatically moved to the completely closed position.
  • the movable rails 700 and 900 are extended or retracted in a state of being operatively connected by the ball retainers 950 .
  • the front ends of the movable rails 700 and 900 may be rocked during the extension or retraction of the movable rains 700 and 900 .
  • Such vibration of the movable rails 700 and 900 causes a difficulty in coupling the moving pin guide 300 to the moving pin 400 when the state of FIG. 11 is changed to the state of FIG. 12 . That is, the vibration of the movable rails 700 and 900 disturbs smooth operation of the self-closing apparatus.
  • FIG. 14A is a perspective view of an alternate embodiment movable member 200 ′ which is provided with a movable rail support 270 for preventing the front end of the inner movable rail 700 from vibrating.
  • FIG. 14B is a sectional view of the movable member 200 ′ seen from the direction of “B” of FIG. 14A .
  • the movable rail support 270 is formed on a surface of the movable member 200 ′ opposite to the surface of the movable member 200 ′ in which the U-shaped sliding grooves 222 are formed.
  • the movable rail support 270 includes support bars 272 formed integrally with the movable member 200 ′.
  • the support bars 272 have a rectangular shape.
  • the support bars 272 may have a triangular shape.
  • the support bars 272 are vertically spaced apart from each other by a distance corresponding to the width of the inner movable rail 700 .
  • the support bars 272 have a length suitable to guide the inner movable rail 700 .
  • the support bars 272 extend throughout the overall length of the movable member 200 ′.
  • the support bars 272 serve to restrain lateral vibration of the inner movable rail 700 .
  • Other portions of the movable member 200 ′ are the same as those of the movable member 200 .
  • support flanges 274 are respectively formed at free ends of the support bars 272 .
  • the support flanges 274 serve to restrain vertical vibration of the inner movable rail 700 .
  • the protruded height of each bar 272 from the movable member 200 ′ corresponds to the height of the inner movable rail 700 .
  • the moving pin 400 When the moving pin guide 300 moves toward the retracted position, the moving pin 400 is not in the state of being engaged with the curved guide portion 125 (the state of FIG. 11 ), but may be located at the completely retracted position, i.e., at the position in which the moving pin guide 300 completes the movement along the rectilinear guide portion 124 (the state of FIG. 13 ).
  • This state occurs in the case that a certain element enters the slide due to user's careless mistake when the slide is located at the extended position, thereby separating the moving pin 400 from the curved guide portion 125 .
  • the self-closing apparatus of the present invention is easily returned to its normal operating position.
  • the moving pin guide 300 moves toward the retracted position in the above state, that is, the abnormal operating state in which the moving pin 400 completes the movement along the rectilinear guide portion 124 , as shown in FIG. 15 , the moving pin guide 300 is moved toward the retracted position by the force applied by the user to push the drawer to the closed position, and the second inlet surface 312 of the moving pin guide 300 meets the support pin portion 430 of the moving pin 400 . Since the second inlet surface 312 is inclined at an angle of approximately 45 degrees, further movement of the moving pin guide 300 toward the retracted position cause to push the support pin portion 430 of the moving pin 400 into the buffering space 126 of the fixed member 100 .
  • the twist preventing protrusion 128 for preventing the support protrusion 127 from twisting is formed at the support protrusion 127 on the rear surface of the fixed member 100 ( FIG. 7B ).
  • the twist preventing protrusion 128 serves to linearly move the support protrusion 127 to the buffering space 126 without twisting, when the self-closing apparatus of the present invention is returned from the abnormal operating state to the normal operating state, i.e., when the further movement of the moving pin guide 300 toward the retracted position cause to push the support pin portion 430 of the moving pin 400 into the buffering space 126 of the fixed member to move the free end of the support protrusion 127 into the buffering space 126 .
  • the moving pin 400 When the support protrusion 127 is severely twisted, the moving pin 400 may be separated from the rectilinear guide portion 124 of the moving pin guide portion 123 of the fixed member 100 , and may enter the buffering space 126 . In this case, the self-closing apparatus cannot operate normally until the slide is disassembled and assembled to be returned to its normal position.
  • twisting force is applied to the support protrusion 127 , the twist preventing protrusion 128 comes into contact with the inner surface of the fixed rail 800 of the slide, and gives repulsive force, thereby preventing the support protrusion 127 from twisting.
  • two slides must be symmetrically installed. Since two slides must be symmetrically installed, two self-closing apparatuses of the present invention must also be manufactured to have symmetrical structures, respectively, such that a pair of the fixed members 100 and a pair of the moving pin guides 300 are manufactured to have symmetrical structures like a mirror image respectively.
  • the preferred embodiment of the present invention describes a self-closing apparatus applied to a three-member slide including two movable rails and one fixed rail, those skilled in the art will appreciate that the self-closing apparatus of the present invention may be applied to a two-member slide including one movable rail and one fixed rail.
  • the self-closing apparatus of the present invention is made of a plastic material having proper strength and elasticity, but is not limited thereto.
  • the moving pin guide of the self-closing apparatus of the present invention is separately manufactured, and is mounted to the end of the movable rail in the illustrated case, the moving pin guide may be formed at the end of the movable rail by means of punching.
  • the present invention provides a self-closing apparatus for a slide, which automatically closes a drawer without continuously applying force to the drawer until the drawer is completely closed, and prevents the drawer from being re-opened by repulsive force caused by impact generated when the drawer is slammed, thereby being conveniently used.
  • the self-closing apparatus of the present invention prevents early breakage of springs, has a simple structure and low production costs, and is easily returned from an abnormal operating state to a normal operating state.
  • the self-closing apparatus of the present invention restrains vibration of the front ends of the movable rails, thereby being smoothly operated.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Drawers Of Furniture (AREA)
  • Power-Operated Mechanisms For Wings (AREA)
  • Lock And Its Accessories (AREA)
  • Vehicle Step Arrangements And Article Storage (AREA)
  • Platform Screen Doors And Railroad Systems (AREA)
US10/553,401 2004-10-08 2004-12-29 Self closing device for a slide and slide having this Abandoned US20070001562A1 (en)

Applications Claiming Priority (7)

Application Number Priority Date Filing Date Title
KR10-2004-0080602 2004-10-08
KR20040080628 2004-10-08
KR10-2004-0080628 2004-10-08
KR20040080602 2004-10-08
KR20-2004-0036684U KR200377907Y1 (ko) 2004-12-24 2004-12-24 슬라이더용 자동밀폐장치
KR20-2004-0036684 2004-12-24
PCT/KR2004/003489 WO2006038748A1 (fr) 2004-10-08 2004-12-29 Dispositif auto-refermable de curseur et curseur possedant ce dispositif

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US20070001562A1 true US20070001562A1 (en) 2007-01-04

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US10/553,401 Abandoned US20070001562A1 (en) 2004-10-08 2004-12-29 Self closing device for a slide and slide having this

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US (1) US20070001562A1 (fr)
EP (1) EP1809143B1 (fr)
JP (1) JP4644257B2 (fr)
AT (1) ATE481897T1 (fr)
DE (1) DE602004029289D1 (fr)
WO (1) WO2006038748A1 (fr)

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US20070127856A1 (en) * 2005-09-02 2007-06-07 John Young Drop-in ball bearing slide assembly
US20080197759A1 (en) * 2007-02-17 2008-08-21 Ken-Ching Chen Slide assembly having an automatic retractable device
US20080211366A1 (en) * 2005-06-27 2008-09-04 Brock Patty J Compact multifunctional self-closing slide assembly
US20080245630A1 (en) * 2007-04-05 2008-10-09 Accuride International, Inc. Fluid damper
US20090058242A1 (en) * 2007-08-30 2009-03-05 Waterloo Industries, Inc. Slide assembly
US20090091225A1 (en) * 2007-10-03 2009-04-09 Jui-Lien Yang Rail assmebly for drawers
US20090115300A1 (en) * 2007-08-09 2009-05-07 King Slide Works Co., Ltd. Slide assembly having an automatic retractable device
US20090160299A1 (en) * 2007-12-20 2009-06-25 Ken-Ching Chen Slide assembly having a homing device
US20090230830A1 (en) * 2008-03-13 2009-09-17 Ng Tai Wai Drawer Slide Closing Device
US20100027923A1 (en) * 2007-04-02 2010-02-04 Fulterer Gesellschaft Mbh Roller differential extension guide
US20100046161A1 (en) * 2008-08-25 2010-02-25 Chi-Tsun Cheng Rail assembly for an industrial computer
US20100176700A1 (en) * 2009-01-09 2010-07-15 Jonathan Manufacturing Corporation Dba Jonathan Engineered Solutions Self-closing slide assembly with dampening mechanism
US7815267B1 (en) * 2006-09-15 2010-10-19 Gus Frousiakis Drawer slide closure apparatus
US20110007988A1 (en) * 2009-07-07 2011-01-13 Nan Juen International Co., Ltd. Sliding track assembly
US20110095666A1 (en) * 2009-10-23 2011-04-28 Huang Kuo Sheng Automatic position-restoring extended slide apparatus
US8132873B2 (en) * 2007-10-03 2012-03-13 Jui-Lien Yang Rail assembly
US20120187816A1 (en) * 2011-01-21 2012-07-26 King Slide Works Co., Ltd. Interlock device for slide assembly
US8282177B1 (en) 2009-09-16 2012-10-09 Whirlpool Corporation Independent self-close mechanism for pullout drawer
US8282176B1 (en) * 2011-06-10 2012-10-09 King Slide Works Co., Ltd. Slide assembly having locking mechanism
CN103002777A (zh) * 2010-04-22 2013-03-27 保罗海蒂诗有限及两合公司 用于家具或家用器具的拉出导向装置
CN103032657A (zh) * 2012-12-14 2013-04-10 青岛歌尔声学科技有限公司 一种伸缩设备
US20130270989A1 (en) * 2012-04-12 2013-10-17 Samsung Electronics Co., L To Sliding apparatus and refrigerator having the same
US20140084769A1 (en) * 2011-07-29 2014-03-27 Hardware Resources, Inc. Soft close mechanism in a drawer slide assembly and method of use
CN104033706A (zh) * 2014-06-28 2014-09-10 青岛歌尔声学科技有限公司 一种伸缩机构
TWI454230B (zh) * 2007-07-18 2014-10-01 Accuride Int Inc 用於抽屜滑件的自行關閉的機構
US20150131929A1 (en) * 2012-04-18 2015-05-14 Segos Co., Ltd. Drawer sliding device
US20150198337A1 (en) * 2014-01-15 2015-07-16 Western Industries, Inc. Telescoping Downdraft Ventilator Alignment Assembly
US9295330B1 (en) * 2014-09-12 2016-03-29 Metalurgica Albras Ltda. Drawer slider
US9814158B1 (en) * 2016-09-03 2017-11-07 Super Micro Computer Inc. Server chassis rail
EP3563723A1 (fr) 2018-04-30 2019-11-06 King Slide Works Co., Ltd. Ensemble de rail de glissement
CN113915233A (zh) * 2020-07-07 2022-01-11 川湖科技股份有限公司 滑轨总成

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WO2007139364A1 (fr) * 2006-06-01 2007-12-06 Yoon Sik Park Dispositif de fermeture automatique destiné à un élément coulissant
DE202009004953U1 (de) * 2009-06-26 2010-11-25 Paul Hettich Gmbh & Co. Kg Selbsteinzugsvorrichtung und Auszugsführung
KR200472315Y1 (ko) 2014-02-04 2014-04-16 (주)아이홈 서랍 칸막이
JP6401525B2 (ja) * 2014-07-08 2018-10-10 株式会社三共 遊技機
DE102016118880A1 (de) 2016-10-05 2018-04-19 Hettich-Heinze Gmbh & Co. Kg Beschlag für eine Schiebetür oder eine Faltschiebetür
JP7138910B2 (ja) * 2018-04-12 2022-09-20 日本アキュライド株式会社 自動引き込み装置付きスライドレール

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US6254029B1 (en) * 1999-10-13 2001-07-03 Judy K. Robertson Weed trimmer line rewinder device
US6712435B2 (en) * 2000-05-01 2004-03-30 Accuride International, Inc. Self-closing slide
US6733097B2 (en) * 2000-05-01 2004-05-11 Accuride International, Inc. Self-closing slide and mechanism for a self-closing slide
US6652050B2 (en) * 2002-01-10 2003-11-25 Nan Juen International Co., Ltd. Drawer-sliding device
US20040183411A1 (en) * 2003-03-20 2004-09-23 Boks Michael J. Self-closing drawer slide
US20040212283A1 (en) * 2003-04-25 2004-10-28 Ingo Gasser Retraction device for drawers
US20040227438A1 (en) * 2003-05-15 2004-11-18 King Slide Works Co., Ltd. Automatic return guiding device for a track device
US7104691B2 (en) * 2003-07-31 2006-09-12 Accuride International, Inc. Self-moving slide, mechanism for self-moving slide and method for self-moving a slide
US6997528B2 (en) * 2003-10-29 2006-02-14 Jun-Long Yang Rail assembly for furniture
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Cited By (47)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20080211366A1 (en) * 2005-06-27 2008-09-04 Brock Patty J Compact multifunctional self-closing slide assembly
US20070127856A1 (en) * 2005-09-02 2007-06-07 John Young Drop-in ball bearing slide assembly
US7850369B2 (en) 2005-09-02 2010-12-14 Jonathan Engineered Solutions Drop-in ball bearing slide assembly
US7815267B1 (en) * 2006-09-15 2010-10-19 Gus Frousiakis Drawer slide closure apparatus
US20080197759A1 (en) * 2007-02-17 2008-08-21 Ken-Ching Chen Slide assembly having an automatic retractable device
US7878606B2 (en) * 2007-02-17 2011-02-01 King Slide Works Co., Ltd. Slide assembly having an automatic retractable device
US20100027923A1 (en) * 2007-04-02 2010-02-04 Fulterer Gesellschaft Mbh Roller differential extension guide
US20080245630A1 (en) * 2007-04-05 2008-10-09 Accuride International, Inc. Fluid damper
US7621381B2 (en) 2007-04-05 2009-11-24 Accuride International, Inc. Fluid damper
TWI454230B (zh) * 2007-07-18 2014-10-01 Accuride Int Inc 用於抽屜滑件的自行關閉的機構
US8147010B2 (en) 2007-08-09 2012-04-03 King Slide Works Co., Ltd. Slide assembly having an automatic retractable device
US20090115300A1 (en) * 2007-08-09 2009-05-07 King Slide Works Co., Ltd. Slide assembly having an automatic retractable device
US8434836B2 (en) * 2007-08-30 2013-05-07 Waterloo Industries, Inc. Slide assembly
US20090058242A1 (en) * 2007-08-30 2009-03-05 Waterloo Industries, Inc. Slide assembly
US8132873B2 (en) * 2007-10-03 2012-03-13 Jui-Lien Yang Rail assembly
US20090091225A1 (en) * 2007-10-03 2009-04-09 Jui-Lien Yang Rail assmebly for drawers
US7588299B2 (en) * 2007-10-03 2009-09-15 Jui-Lien Yang Rail assembly for drawers
US20090160299A1 (en) * 2007-12-20 2009-06-25 Ken-Ching Chen Slide assembly having a homing device
US7600828B2 (en) 2007-12-20 2009-10-13 King Slide Works Co., Ltd. Slide assembly having a homing device
US20090230830A1 (en) * 2008-03-13 2009-09-17 Ng Tai Wai Drawer Slide Closing Device
US20100046161A1 (en) * 2008-08-25 2010-02-25 Chi-Tsun Cheng Rail assembly for an industrial computer
US8104730B2 (en) * 2008-08-25 2012-01-31 Lif J.K. Corporation Rail assembly for an industrial computer
US8277002B2 (en) * 2009-01-09 2012-10-02 Jonathan Manufacturing Corporation Self-closing slide assembly with dampening mechanism
US20100176700A1 (en) * 2009-01-09 2010-07-15 Jonathan Manufacturing Corporation Dba Jonathan Engineered Solutions Self-closing slide assembly with dampening mechanism
US8079653B2 (en) * 2009-07-07 2011-12-20 Nan Juen International Co., Ltd Sliding track assembly
US20110007988A1 (en) * 2009-07-07 2011-01-13 Nan Juen International Co., Ltd. Sliding track assembly
US8282177B1 (en) 2009-09-16 2012-10-09 Whirlpool Corporation Independent self-close mechanism for pullout drawer
US20130055543A1 (en) * 2009-09-16 2013-03-07 Whirlpool Corporation Independent self-close mechanism for pullout drawer
US8844110B2 (en) * 2009-09-16 2014-09-30 Whirlpool Corporation Independent self-close mechanism for pullout drawer
US20110095666A1 (en) * 2009-10-23 2011-04-28 Huang Kuo Sheng Automatic position-restoring extended slide apparatus
CN103002777A (zh) * 2010-04-22 2013-03-27 保罗海蒂诗有限及两合公司 用于家具或家用器具的拉出导向装置
US20120187816A1 (en) * 2011-01-21 2012-07-26 King Slide Works Co., Ltd. Interlock device for slide assembly
US8297723B2 (en) * 2011-01-21 2012-10-30 King Slide Works Co., Ltd. Interlock device for slide assembly
US8282176B1 (en) * 2011-06-10 2012-10-09 King Slide Works Co., Ltd. Slide assembly having locking mechanism
US20140084769A1 (en) * 2011-07-29 2014-03-27 Hardware Resources, Inc. Soft close mechanism in a drawer slide assembly and method of use
US20130270989A1 (en) * 2012-04-12 2013-10-17 Samsung Electronics Co., L To Sliding apparatus and refrigerator having the same
US20150131929A1 (en) * 2012-04-18 2015-05-14 Segos Co., Ltd. Drawer sliding device
CN103032657A (zh) * 2012-12-14 2013-04-10 青岛歌尔声学科技有限公司 一种伸缩设备
US20150198337A1 (en) * 2014-01-15 2015-07-16 Western Industries, Inc. Telescoping Downdraft Ventilator Alignment Assembly
US10119707B2 (en) * 2014-01-15 2018-11-06 Western Industries, Inc. Telescoping downdraft ventilator alignment assembly
CN104033706A (zh) * 2014-06-28 2014-09-10 青岛歌尔声学科技有限公司 一种伸缩机构
US9295330B1 (en) * 2014-09-12 2016-03-29 Metalurgica Albras Ltda. Drawer slider
US9814158B1 (en) * 2016-09-03 2017-11-07 Super Micro Computer Inc. Server chassis rail
EP3563723A1 (fr) 2018-04-30 2019-11-06 King Slide Works Co., Ltd. Ensemble de rail de glissement
JP2019193768A (ja) * 2018-04-30 2019-11-07 川湖科技股▲分▼有限公司 スライドレールアセンブリ
US10660436B2 (en) 2018-04-30 2020-05-26 King Slide Works Co., Ltd. Slide rail assembly
CN113915233A (zh) * 2020-07-07 2022-01-11 川湖科技股份有限公司 滑轨总成

Also Published As

Publication number Publication date
EP1809143A1 (fr) 2007-07-25
WO2006038748A1 (fr) 2006-04-13
JP2008515524A (ja) 2008-05-15
JP4644257B2 (ja) 2011-03-02
EP1809143B1 (fr) 2010-09-22
DE602004029289D1 (de) 2010-11-04
ATE481897T1 (de) 2010-10-15
EP1809143A4 (fr) 2008-11-12

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