초록 ▼

A catcher (2) provided in a door frame H′ for capturing a striker body 1 moved from a near front side F when a door D′ is rotated toward a reference position; a braking device (5); and a linkage device (3) for both are provided. The catcher (2) is provided to be reciprocatingly rotatable between a s

A catcher (2) provided in a door frame H′ for capturing a striker body 1 moved from a near front side F when a door D′ is rotated toward a reference position; a braking device (5); and a linkage device (3) for both are provided. The catcher (2) is provided to be reciprocatingly rotatable between a standby position and a rotated position, captures the striker body (1) at the standby position, and rotates forward to the rotated position. Braking of the braking device (5) is applied to a rotation toward the rotated position of the catcher (2) through the linkage gear member (30).

대표청구항 ▼

1. A retracting mechanism, comprising: a striker body provided in either one of a rotational body or a main body to which the rotational body is rotatably attached;a catcher provided on the other of the rotational body or the main body for capturing the striker body when the rotational body is rotat

1. A retracting mechanism, comprising: a striker body provided in either one of a rotational body or a main body to which the rotational body is rotatably attached;a catcher provided on the other of the rotational body or the main body for capturing the striker body when the rotational body is rotated from an open position to a reference position;a braking device for applying a resistance force to a movement of a movable member; anda linkage device between the catcher and the braking device,wherein the catcher is provided so as to be reciprocatingly rotatable between a standby position and a rotated position for capturing the striker body at the standby position, and rotating forward to the rotated position,wherein due to the linkage device, the movable member comprising the braking device is moved farther in proportion to a rotation volume of the catcher, andwherein the linkage device comprises a linkage gear member including a small-diameter gear member connected to the catcher, and a large-diameter gear member connected to the movable member of the braking device and rotating together with the small-diameter gear member, the small-diameter gear member and the large-diameter gear member being coaxially arranged. 2. A retracting mechanism according to claim 1, wherein the braking device is a load-response type braking device. 3. A retracting mechanism according to claim 1, wherein the braking device comprises a piston and a cylinder and is configured to apply resistance of viscose fluid encapsulated in the cylinder to a push-in movement of the piston, wherein the linkage device further comprises:a first slider having a first rack engaging with a pinion-like portion formed in the catcher and the small-diameter gear member of the linkage gear member; anda second slider having a second rack engaging with the large-diameter gear member of the linkage gear member, andwherein due to a movement of the second slider, the piston comprising the braking device is pushed in or relatively pushed in. 4. A retracting mechanism, further comprising a catcher unit for housing the catcher, the braking device, and the linkage device according to claim 3, wherein the catcher unit has a width and a length so that the first and second racks are moved along a direction of the length, andwherein the width of the catcher unit has a size so as to be housed between a side face on a side opposite to a face of a door as the rotational body bumping in a doorstop portion of a door frame as a main body and a side face of the door frame on a side opposite to the side face. 5. A fixing structure for fixing the retracting mechanism according to claim 1, wherein when a space between a free end of a door as the rotational body and a door frame as the main body comes to a range of 10% to 20% of a width of the door, the catcher captures the striker body. 6. A retracting mechanism according to claim 1, further comprising a tension coil spring having one end attached to the linkage gear member in a position biased from a rotation center, and the other end of the coil spring fastened to a fastened position, wherein when a front end of the spring, a back end of the spring, and the rotation center of the linkage pinion are positioned in a linear line, the tension coil spring is most stretched, and the catcher is positioned in an intermediate position between the standby position and the rotated position through the first slider. 7. A retracting mechanism according to claim 6, wherein the tension coil spring applies an urging force to the linkage gear member for moving the catcher toward the standby position when the catcher is positioned closer a standby position side than the intermediate position between the standby position and the rotated position, and the urging force to the linkage gear member for moving the catcher toward the rotated position when the catcher is positioned closer the rotated position than the intermediate position. 8. A retracting mechanism according to claim 1, wherein the catcher has a hooking groove composed of a straight-line marginal portion and an arm portion for capturing the striker body, the straight-line marginal portion being positioned on a movement locus of the striker body and the arm portion being positioned on a lateral side of the movement locus of the striker body. 9. A retracting mechanism, comprising: a striker body provided in either one of a rotational body or a main body to which the rotational body is rotatably attached;a catcher having a pinion portion and provided on the other of the rotational body or the main body for capturing the striker body when the rotational body is rotated from an open position to a reference position;a braking device for applying a resistance force to a movement of a movable member, having a cylinder and a piston rod connected to the cylinder; anda linkage device disposed between the catcher and the braking device, including a linkage gear member, a first slider disposed on one side opposite to the braking device and having a rack engaging the pinion portion of the catcher and the linkage gear member, and a second slider disposed on the other side along with the braking device and having a rack engaging the linkage gear member; andwherein the catcher is provided so as to be reciprocatingly rotatable between a standby position and a rotated position for capturing the striker body at the standby position, and rotating forward to the rotated position, andwherein the first slider is connected to one of the cylinder or the piston rod and the second slider is connected to the other of the cylinder or the piston rod such that a movement of the piston rod along with the cylinder is greater than the rotation of the catcher due to a movement of the first slider and the second slider. 10. A retracting mechanism according to claim 9, further comprising a tension coil spring having one end rotatably attached to a linkage pinion in a position biased from a rotation center of the linkage pinion, and the other end fastened to a supporting body of the linkage pinion, wherein when a front end of the spring, a back end of the spring, and a rotation center of the linkage pinion are positioned in a linear line, the tension coil spring is most stretched, and the catcher is positioned in an intermediate position between the standby position and the rotated position through the first slider. 11. A retracting mechanism according to claim 10, wherein the tension coil spring applies an urging force to the linkage pinion through the linkage rod for moving the catcher toward the standby position when the catcher is positioned closer the standby position than the intermediate position between the standby position and the rotated position, and the urging force to the linkage pinion through the linkage rod for moving the catcher toward the rotated position when the catcher is positioned closer the rotated position than the intermediate position. 12. A retracting mechanism according to claim 9, further comprising a catcher unit for housing the catcher, the braking device, and the linkage device, wherein the catcher unit has a width and a length so that first and second racks are moved along a direction of the length, and wherein the width of the catcher unit has a size so as to be housed between a side face on a side opposite to a face of a door as the rotational body bumping in a doorstop portion of a door frame as a main body and a side face of the door frame on a side opposite to the side face. 13. A retracting mechanism according to claim 9, wherein the catcher has a hooking groove composed of a straight-line marginal portion and an arm portion for capturing the striker body, the straight-line marginal portion being positioned on a movement locus of the striker body and the arm portion being positioned on a lateral side of the movement locus of the striker body. 14. A retracting mechanism according to claim 9, wherein an end of the cylinder or the piston rod is connected to an end of the second slider.