초록 ▼

A self-closing rail system includes a first rail, a second rail which is slidably connected to the first rail, and a self-closing device. The self-closing device includes an attachment member connected to the first rail and a guide portion extends longitudinally from the attachment member. A movable

A self-closing rail system includes a first rail, a second rail which is slidably connected to the first rail, and a self-closing device. The self-closing device includes an attachment member connected to the first rail and a guide portion extends longitudinally from the attachment member. A movable member is movably connected to the guide portion of the attachment member. An elastic member is connected between the attachment member and the movable member such that the elastic member applies a force to the movable member. A fixing member is connected to the second rail and has a pin which is connected to or disengaged from the movable member depending on the relative movement between the first and second rails.

대표청구항 ▼

1. A self-closing rail system, comprising: a first rail having a first wall, a second wall, a third wall connected between the first and second walls and a first channel defined by the first, second and third walls, the first rail having a first end and a second end, a first assist member being pivo

1. A self-closing rail system, comprising: a first rail having a first wall, a second wall, a third wall connected between the first and second walls and a first channel defined by the first, second and third walls, the first rail having a first end and a second end, a first assist member being pivotally connected to the first end of the first rail;a second rail slidably connected to the first channel of the first rail, the second rail having a first wall, a second wall, a third wall connected between the first and second walls of the second rail and a second channel defined by the first, second and third walls of the second rail, the second rail having a first end and a second end, the first assist member rotatably supported by the second channel which is located corresponding to the first channel, a second assist member being pivotally connected to the second end of the second rail and rotatably supported by the first channel of the first rail; anda self-closing device coupled to the first rail, the self-closing device comprising: a fixing member connected to the second rail, the fixing member including a pin connected thereto;an attachment member connected to the first rail with the first rail extending longitudinally thereacross, the attachment member including a longitudinally directed guide portion extending laterally from a surface of the attachment member, the guide portion including a first guide end and a longitudinally spaced second guide end, the guide portion being upwardly inclined with respect to the first rail with the second guide end being higher than the first guide end;a movable member movably connected to the guide portion of the attachment member, the movable member including a passage extending longitudinally thereacross defined by a support formed adjacent a first longitudinal end of the movable member and a pair of opposed supports formed adjacent an opposing second longitudinal end of the movable member, the guide portion being received in the passage for slidable engagement of the movable member thereon, the movable member includes a reception portion formed therein for releasable engagement with the pin of the fixing member; and,an elastic member connected between the attachment member and the movable member for applying a bias force to the movable member against longitudinal displacement thereof from the first guide end toward the second guide end;wherein the movable member located at the first guide end of the guide portion and the pin engaged with the reception portion of the movable member when the second rail is in a retracted position relative to the first rail the movable member being slidably displaced along the guide portion against the bias force of the elastic member responsive to the second rail being moved away from the retracted position relative to the first rail;wherein responsive to the movable member being slidably displaced to a position where the support adjacent the first longitudinal end thereof passes the second guide end of the guide portion, an angular movement of the movable member is generated to thereby release the pin from engagement with the reception portion of the movable member and retain the movable member thereat by the bias force of the elastic member, the second rail thereby being further displaceable in a direction from the retracted position without the bias force applied thereto, and responsive to the second rail being subsequently displaced relative to the first rail toward the retracted position and responsive to the pin contacting the movable member, the movable member rotates to release the support adjacent the first longitudinal end thereof from the second guide end, engage the reception portion with the pin, and the bias force of the elastic member displaces the movable member toward the first guide end of the guide portion to thereby retract the second rail relative to the first rail. 2. The self-closing rail system as claimed in claim 1, wherein the first and second walls on the second end of the first rail respectively have a first tilt surface, the second channel of the second rail has a second tilt surface close to the first end of the second rail, the second tilt surface is located corresponding to the first tilt surface of the first rail. 3. The self-closing rail system as claimed in claim 1, wherein the attachment member includes a first side which is located corresponding to the third wall of the first rail, a first plate extends from the first side of the attachment member and is located corresponding to the second wall of the first rail, the first plate has a first stop wall extending upward from a side thereof, a second plate extends from the first side of the attachment member and is located corresponding to the first wall of the first rail, the second plate has a second stop wall extends downward from a side thereof, and a third plate extends from the first side of the attachment member to engage with the first rail. 4. The self-closing rail system as claimed in claim 3, wherein the first rail includes a first connection portion which is located corresponding to the third plate of the attachment member, the third plate includes a flexible leg corresponding to the first connection portion of the first rail and a first stop is located at a distance from the flexible leg, a second stop extends from the first side of the attachment member, an engaging space is defined among the flexible leg, the first stop and the second stop, and the engaging space substantially has the same length as that of the first connection portion of the first rail. 5. The self-closing rail system as claimed in claim 3, wherein the first rail includes a first connection part which is located corresponding to the third plate of the attachment member, the third plate is a protrusion, and the first connection part is a hole with which the third plate is engaged. 6. The self-closing rail system as claimed in claim 1, further comprising a buffering member fixed to the attachment member, the buffering member including a retractable rod in contact with the movable member. 7. The self-closing rail system as claimed in claim 1, wherein the first and second walls of the second end of the first rail respectively include a first tilt surface, the second channel of the second rail has a second tilt surface close to the first end of the second rail, the second tilt surface is located corresponding to the first tilt surface of the first rail, the guide portion is located corresponding to the first and second tilt surfaces and includes an angle relative to a horizontal plane. 8. The self-closing rail system as claimed in claim 1, wherein the second rail includes a second connection portion which is a hole, the fixing member includes a first fixing portion and a second fixing portion, the first fixing portion is connected to the second connection portion of the second rail, and the second fixing portion is against the second rail. 9. The self-closing rail system as claimed in claim 8, wherein the first fixing portion includes a stepped engaging portion and the second connection portion includes a tab to which the stepped engaging portion is connected. 10. The self-closing rail system as claimed in claim 1, wherein the movable member includes an elastic portion is located at a first end of the reception portion, and an anchoring portion is located at a second end of the reception portion so as to be connected with an end of the elastic member. 11. The self-closing rail system as claimed in claim 1, wherein the attachment member of the self-closing device includes a first hole, a second hole and a protrusion, the third wall of the first rail includes a first protruding plate and a second protruding plate, the first and second protruding plates are engaged with the first and second holes, the third wall of the first rail includes an aperture with which the protrusion of the self-closing device is engaged, such that the first and second protruding plates are secured with the first and second holes. 12. The self-closing rail system as claimed in claim 1, wherein the first rail is fixed to a furniture article, a gap is defined between the first rail and the furniture article, the self-closing device is connected to the third wall of the first rail and located in the gap.