JP2005126933A - Braking device of suspended sliding door - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a braking device of a suspended sliding door, which enables easy adjustment of a braking force imposed on the suspended sliding door. <P>SOLUTION: A casing 11 is built into a recessed place 10 of a runner 7 which moves along a rail 2 with the suspended sliding door 5. The braking force is imparted to the suspended sliding door 5 by bringing a braking body 15, which is built into a recessed part 14 of the casing 11, into contact with a brake shoe 6 which is attached to a top plate of the rail 2. In the opening of the suspended sliding door 5, an inclined cam surface 20, which is provided in the casing 11, is moved toward an up-grade direction along an inclined cam surface 21 which is provided on the undersurface of the braking body 15, and the braking force can be decreased by a reduction in the pressure of the contact of the braking body 15 with the brake shoe 16. A height adjusting ring 24 is built into a through-hole 23 of the runner 7; a wrench is engaged with a wrench engaging part 25 of its undersurface; the casing 11 is made to ascend/descend via a motion conversion mechanism 30 by rotation of the height adjusting ring 24; and the braking force is adjusted by adjusting the height of the braking body 15. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

  The present invention relates to a braking device for a hanging sliding door supported by hanging on a rail.

  Generally, when a suspended sliding door supported by being suspended by a rail is returned to a closed position, the suspended sliding door may be abutted against the door contact surface.

  In order to solve such a problem, a braking force is applied to the suspension door at a position just before the suspension door reaches the closed position.

  By the way, when it is the structure which provides a braking force only to a suspension door, when opening a suspension door, it is necessary to provide the operation force of the magnitude | size which overcomes a braking force to a suspension door, and a problem arises in operativity.

  In order to solve such a problem, in Patent Document 1, a braking force is applied to the suspension door when the suspension door is closed, and the braking force is reduced when the suspension door is opened. A braking device for a hanging sliding door that can be opened is proposed.

In the suspension device for a sliding door described in Patent Document 1, the braking force applied to the suspension door can be adjusted by adjusting the position of the stopper to the front and back in the sliding door moving direction by the adjusting means.
JP 2001-12140 A

  By the way, in the suspension device of the sliding door described in patent document 1, since the adjustment means which adjusts braking force by adjusting the position of a stopper is incorporated in the inside of a rail, adjustment of braking force is difficult. There are still points to be improved in facilitating the adjustment operation.

  It is an object of the present invention to be able to apply a braking force when closing a hanging sliding door, to reduce the braking force when opening, and to easily adjust the braking force. The present invention provides a brake device for a suspended sliding door.

  In order to solve the above-described problem, in the present invention, in the suspension device for a hanging door that applies a braking force to the sliding door from a position before the hanging sliding door that is suspended and supported by the rail reaches the closed position, the ceiling of the rail is provided. A belt-like brake shoe attached to the lower surface of the plate, a runner that is movable along the rail, and movable with the suspension door, and can be moved up and down fitted in a recess that opens on the upper surface of the runner A casing, a spring that urges the casing toward the bottom surface of the recess, and a braking body that is housed in a recess that opens on the top surface of the casing and applies a braking force to the suspension door by contact with the brake shoe The wrench engaging portion provided on the lower surface is rotatably installed in the through hole formed in the bottom wall of the recess of the runner and extending vertically. And a motion conversion mechanism for converting the rotational movement of the height adjustment ring into the up-and-down movement of the cam member. A configuration is adopted in which an inclined cam surface that is inclined with an upward slope toward the opening direction is formed, and a spring that biases the braking body toward the upward direction of the inclined cam surface is provided.

  Here, as the motion conversion mechanism, a cam plate movable in the opening / closing direction of the hanging sliding door is incorporated between the lower surface of the casing and the bottom surface of the recess, and the moving direction of the hanging sliding door is respectively provided on the upper surface of the cam plate and the lower surface of the casing. A slanted cam surface is formed, and a long hole extending in a direction intersecting the moving direction of the sliding door is provided on the lower surface of the cam plate, and inserted into the long hole on the outer periphery of the upper surface of the height adjustment ring. The thing which consists of the structure which provided the eccentric pin which can be employ | adopted is employable.

  In the hanging sliding door braking device having the above-described configuration, when the hanging sliding door is moved toward the closed position, the brake body comes into contact with the brake shoe at a position before the hanging sliding door reaches the closed position, and braking is performed by the contact. Since the moving speed of the body is decelerated from the moving speed of the casing, the casing and the braking body move relatively. Due to the relative movement of the two parts, the inclined cam surface comes into strong contact, and the braking body also comes into strong contact with the brake shoe.

  Further, when the suspension door is moved toward the open position, the casing moves relative to the brake body to which movement resistance is applied by contact with the brake shoe, and the relative movement causes the braking of the inclined cam surface of the casing. The frictional force between the inclined cam surfaces of the body is reduced, the braking force applied to the hanging sliding door is reduced, and the hanging sliding door can be opened with a small operating force.

  As described above, in the braking device according to the present invention, since the braking force can be applied when closing the hanging sliding door, it is possible to prevent the hanging sliding door from impactingly contacting the door-contacting surface. Since the braking force can be reduced when the door is opened, the hanging door can be opened with a small operating force.

  Further, when the wrench is engaged with the wrench engaging portion and the height adjusting ring is rotated, the casing is moved up and down by the motion conversion mechanism, and the height of the braking body is adjusted. Changes, and the braking force applied to the hanging sliding door can be adjusted. At this time, since the wrench engaging portion of the height adjusting ring is positioned below the lower surface of the rail, the wrench can be easily engaged with the wrench engaging portion, and the height adjusting ring can be easily rotated. And the braking force can be adjusted very easily.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings. As shown in FIG. 1, a rail 2 is attached above the opening 1.

  As shown in FIG. 4, the rail 2 has a C-shaped cross section in which a pair of side plates 2b are provided on both sides of the top plate 2a, and a pair of flanges 2c are provided inward from the lower ends of the side plates 2b.

  As shown in FIG. 1, a trolley 3 is incorporated in the rail 2. The trolley 3 has a plurality of rotatable rollers 4 supported by a pair of flanges 2 c of the rail 2, and is movable along the rail 2. A plurality of the trolleys 3 are assembled in the rails 2, and the hanging sliding doors 5 that open and close the opening 1 are supported by the trolleys 3.

  On the lower surface of the top plate 2 a of the rail 2, a band plate-like brake shoe 6 is attached at a position substantially corresponding to the closed position of the suspension door 5. A runner 7 is incorporated in the rail 2. The runner 7 has a plurality of rotatable rollers 8 supported by a pair of flanges 2 c of the rail 2, and is movable along the rail 2.

  The runner 7 is connected to the trolley 3 located at the end of the suspension door 5 on the door contact side via a joint 9 and moves together with the suspension door 5.

  As shown in FIGS. 2 to 4, the runner 7 is provided with a recess 10 that opens on the top surface thereof, and a casing 11 incorporated in the recess 10 has a plurality of guide pins standing up from the bottom surface of the recess 10. The spring 13 supported by the guide pins 12 urges the casing 11 toward the bottom surface of the recess 10.

  As shown in FIGS. 2 and 6, the casing 11 has a recess 14 that opens on the upper surface thereof, and a braking body 15 is incorporated in the recess 14. A pair of guide pins 16 penetrating both side surfaces are provided at both front and rear end portions of the braking body 15, and both end portions of each guide pin 16 are inserted into guide holes 17 formed on both side walls of the recess 14. .

  The guide hole 17 is a long hole that inclines with an upward slope toward the opening direction of the hanging sliding door 5, and both end portions of the guide pin 16 are slidably inserted into the guide hole 17 along the guide hole 17. Thus, the braking body 15 is movable. A brake pad 18 is attached to the upper surface of the brake body 15 at a position corresponding to the brake shoe 6.

  A pair of protrusions 19 extending in the opening / closing direction of the suspension door 5 are formed on both sides of the bottom surface of the recess 14 in the casing 11, and the upper surface of each protrusion 19 and the lower surface of the brake body 15 are respectively open in the opening direction of the suspension door 5. Inclined cam surfaces 20 and 21 that are inclined with an upward slope toward the surface are provided.

  In the embodiment, the plurality of cam surfaces 20 and 21 are provided in the moving direction of the hanging sliding door 5, but a single inclined cam surface 20 and 21 may be used. A spring 22 that presses the braking body 15 toward the upward gradient direction of the inclined cam surfaces 20 and 21 is incorporated in the recess 14.

  A through hole 23 penetrating vertically is formed in the bottom wall of the recess 10 in the runner 7. The through hole 23 is a stepped hole, and a height adjusting ring 24 is rotatably incorporated in the through hole 23.

  A square wrench engaging portion 25 is provided on the lower surface of the height adjusting ring 24, and the wrench engaging portion 25 is located below the lower surface of the rail 2.

  Between the height adjustment ring 24 and the casing 11, there is provided a motion conversion mechanism 30 that converts the rotational movement of the height adjustment ring 24 into the vertical movement of the casing 11.

  The motion conversion mechanism 30 incorporates a cam plate 31 between the lower surface of the casing 11 and the bottom surface of the recess 10, and cam surfaces 32 and 33 that are inclined in the moving direction of the suspension door 5 on the upper surface of the cam plate 31 and the lower surface of the casing 11. A long hole 34 is formed in the lower surface of the cam plate 31 so as to extend in the direction intersecting with the moving direction of the suspension door 5, and is inserted into the long hole 34 on the outer periphery of the upper surface of the height adjusting ring 24. Eccentric pin 35 is provided, and the cam plate 31 is moved in the moving direction of the suspension door 5 by the eccentric rotation of the eccentric pin 35 by the rotation of the height adjusting ring 24, so that the relative cam surfaces 32 and 33 that are in contact with each other. The casing 11 is moved up and down by movement.

  The braking device for the hanging sliding door shown in the embodiment has the above-described structure, and when the hanging sliding door 5 is moved toward the closed position, the brake pad 18 of the braking body 15 is located at a position before the hanging sliding door 5 reaches the closed position. Comes into contact with the lower surface of the brake shoe 6, and the braking body 15 is decelerated by the contact, and a speed difference is generated between the casing 11 moving together with the suspension door 5, and the braking body 15 and the casing 11 move relative to each other. .

  By the relative movement of the braking body 15 and the casing 11, the braking body 15 moves obliquely upward along the inclined cam surface 20 of the casing 11, and the movement causes the inclined cam surfaces 20, 21 of the casing 11 and the braking body 15 to move. The brake pad 18 of the brake body 15 comes into strong contact with the lower surface of the brake shoe 6 and the braking force is applied to the suspension door 5 by the contact, and the suspension door 5 is decelerated and moved to the closed position.

  For this reason, the suspension door 5 is prevented from impactingly contacting the door contact surface 1 a of the opening 1.

  On the other hand, when the suspension door 5 is moved toward the open position, the casing 11 moves toward the open position with respect to the brake body 15 to which movement resistance is applied by contact with the brake shoe 6. Due to the relative movement of the braking body 15 and the casing 11, the inclined cam surface 20 of the casing 11 moves in the upward gradient direction along the inclined cam surface 21 of the braking body 15. 11, the lower part of the inclined cam surface 20 contacts the inclined cam surface 21 of the braking body 15, the frictional resistance of the contact portion between the inclined cam surfaces 20, 21 is reduced, and the contact between the braking body 15 and the brake shoe 6 is reduced. The frictional resistance acting on the part is also reduced.

  For this reason, the braking force applied to the hanging sliding door 5 is reduced, and the hanging sliding door 5 can be moved to the open position with a small operating force.

  When the hanging door 5 is repeatedly opened and closed, wear occurs at the contact portion between the brake shoe 6 and the braking body 15, and the braking force applied to the hanging door 5 gradually decreases due to the wear. In this case, it is necessary to adjust the braking force.

  When adjusting the braking force, the wrench is engaged with the wrench engaging portion 25 of the height adjusting ring 24 and the height adjusting ring 24 is rotated.

  The eccentric pin 35 rotates eccentrically by the rotation of the height adjusting ring 24, and the cam plate 31 moves in the moving direction of the suspension door 5. Due to the movement of the cam plate 31, the cam surface 32 of the cam plate 31 moves along the cam surface 33 of the casing 11, so that the casing 11 moves up and down and raises the casing 11, so that the brake body 15 As a result, the braking force applied to the suspension door 5 is increased. On the other hand, when the casing 11 is lowered, the braking body 15 moves in a direction away from the lower surface of the brake shoe 6, so that the braking force applied to the hanging door 5 can be weakened.

  In adjusting the braking force as described above, the wrench engaging portion 25 provided on the lower surface of the height adjusting ring 24 is positioned below the lower surface of the rail 2, so that a wrench is attached to the wrench engaging portion 25. They can be easily engaged and the braking force can be adjusted very easily.

Partially cutaway front view showing an embodiment of a braking device for a hanging sliding door according to the present invention Sectional drawing which expands and shows the braking device part of FIG. Sectional view along line III-III in FIG. Sectional view along line IV-IV in FIG. Sectional drawing which shows the cancellation | release state of the braking force loaded on a hanging sliding door Exploded perspective view showing brake body, casing and cam plate

Explanation of symbols

2 Rail 5 Suspended sliding door 6 Brake shoe 7 Runner 10 Recess 11 Casing 13 Spring 14 Recess 15 Brake body 20, 21 Inclined cam surface 23 Through hole 24 Height adjustment ring 25 Wrench engagement part 30 Motion conversion mechanism 31 Cam plate 32, 33 Cam surface 34 Long hole 35 Eccentric pin

Claims (2)

  In the suspension device for a hanging door that applies a braking force to the sliding door from a position before the hanging door supported by hanging on the rail reaches the closed position, a belt-like brake shoe attached to the lower surface of the top plate of the rail, A runner that is movable along the rail and is movable with the suspension door, a casing that can be moved up and down fitted in a recess that opens on the top surface of the runner, and the casing that faces the bottom surface of the recess. A spring that energizes, a braking body that is housed in a recess opened on the upper surface of the casing and applies a braking force to the hanging door by contact with the brake shoe, and an upper and lower formed on the bottom wall of the recess of the runner A height adjustment ring that is rotatably incorporated in a through hole that penetrates and a wrench engaging portion provided on the lower surface is positioned below the lower surface of the rail, and the height adjustment ring An inclined cam surface that inclines with an upward slope toward the opening direction of the sliding door at each of the contact portions of the lower surface of the brake member and the cam member. A suspension door braking device comprising a spring that is formed and urges the braking body toward the upward direction of the inclined cam surface.   The motion conversion mechanism incorporates a cam plate movable in the opening / closing direction of the sliding door between the lower surface of the casing and the bottom surface of the recess, and the upper surface of the cam plate and the lower surface of the casing are inclined in the moving direction of the hanging door. An eccentric pin that forms a cam surface, has a long hole extending in a direction intersecting the moving direction of the suspension door on the lower surface of the cam plate, and is inserted into the long hole on the outer peripheral portion of the upper surface of the height adjustment ring The suspension device for a hanging sliding door according to claim 1, comprising:

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