JP2006028890A - Rebound preventing device used as catch of sliding body - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a rebound preventing device used as a catch capable of automatically closing a sliding body such as a sliding door even if it rebounds slightly when closed and serving as a catch for holding a closed attitude and moreover enabling even the handicapped to lightly open and close. <P>SOLUTION: The rebound preventing device used as the catch comprises a casing 1 provided with a cylinder part 2 and mounted to the sliding body A such as the sliding door; a piston member 3 enclosed in the cylinder part 2 of the casing 1 slidably along the axial direction and formed to be protrudable from a vertical end face 6 of the sliding body; a magnet 4 or a magnet attracting member provided at the tip of the piston member 3; and a spring 5 for elastically pressing the piston member 3 always into a retreat position. A fixed frame B is provided with a magnet attracting member 7 or a magnet attracted to the magnet 4 or the magnet attracting member to hold the closed attitude of the sliding door when the sliding door is in the closed attitude. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

  The present invention relates to a catch-and-bounce prevention device for a sliding body such as a sliding door, and in particular, when the sliding door is closed, it rebounds by reaction and prevents the sliding door from being half-opened, and maintains the closed position of the sliding door. The present invention relates to a bounce prevention device that can also be used as a catch.

  Conventionally, as a means for preventing the sliding door from bouncing back by the reaction when the sliding door is closed, there are brake devices as shown in Patent Documents 1 to 3, for example.

  In this conventional means, just before the closing position of the sliding door, a curved spring plate is installed between the sliding door and the rail, the elastic force of the spring plate applies a brake immediately before closing the sliding door to stop the sliding door, and It is intended to prevent rebound from recoil.

Moreover, as shown in Patent Document 4, there is a rail provided with a stopper, that is, a spring plate, on which a guide that moves together with the sliding door passes immediately before the sliding door is closed, and the sliding door is stopped by applying a brake with the spring plate.
JP 07-286474 A Japanese Patent Laid-Open No. 08-093318 Japanese Patent Application Laid-Open No. 09-078933 JP 07-269221 A

  However, in the above-mentioned conventional means, if the braking force by the spring plate is increased, a large force is required when closing and opening the sliding door. On the contrary, if the braking force of the spring plate is reduced so that the sliding door can be opened and closed lightly, the braking effect is obtained. There was a problem that it bounced back and became half open due to the reaction when it was closed. There are various types of complicated door closers incorporating a hydraulic mechanism, but all of them are large and expensive, and are not suitable for partitions in a general house or sliding doors for furniture.

  Therefore, the present invention has been invented to solve the above-described conventional problems, and when a sliding body such as a sliding door is closed, even if it rebounds slightly by its reaction, it can be automatically returned to a closed posture. It can serve as a catch to hold its closed position, and it can be opened and closed lightly even by people with disabilities by eliminating the harmful effects of opening and closing the sliding doors when opening and closing the sliding doors. The main object of the present invention is to provide a catch-and-bounce prevention device that can be used at low cost with a simple structure.

  In order to achieve the above object, the present invention takes the following technical means. That is, in the catch and bounce prevention device according to the present invention, the casing 1 provided with the cylinder portion 2 and attached to the sliding body A such as a sliding door, and the cylinder portion 2 of the casing 1 can slide along the axial direction. And a piston member 3 formed so as to be able to protrude from the vertical end surface 6 of the sliding body, a magnet 4 or a magnet adsorbing member provided at the tip of the piston member 3, and the piston member 3 always in a retracted position. A structure in which the fixed frame B is provided with a magnet adsorbing member 7 or a magnet that holds the sliding position of the sliding body by adhering to the magnet 4 or the magnet attracting member in the closing position of the sliding body. It was. As a result, even if the sliding body is slightly rebounded in the opening direction by the reaction when the sliding body is closed, the piston member 3 is held in a state of protruding forward while compressing the spring 5 while the magnet 4 and the magnet attracting member 7 are attracted. Then, the sliding body advances while the piston member 3 is retracted by the repulsive force of the spring 5 and can be in the closed position.

  In the present invention, the casing 1 of the present invention can be formed integrally with the body 13 of the sliding door door pulley 12 provided with the traveling wheels 11 and embedded in the end face of the sliding door A. . Thereby, the catch and rebound prevention device of the present invention can be set on the sliding door A at the same time as the door 12 is attached.

  It is preferable that a buffer member 14 is interposed between the rear end surface of the piston member 3 and the inner end surface of the cylinder portion 2. Thereby, the impact and sound when the piston member 3 returns from the protruding posture by the spring 5 can be reduced. The buffer member 14 can be formed of a soft and elastic cushioning material such as rubber or a weak spring.

  The catch-and-bounce prevention device of the present invention can automatically return to the closed position even if the sliding body rebounds slightly in the opening direction when the sliding body is closed. In addition to being able to serve as a catch to hold, there is no harmful effect of opening and closing the sliding doors like the conventional brake device when opening and closing the sliding doors, and even people with disabilities can open and close it lightly. The structure is simple and can be manufactured at low cost.

  In the following, the present invention will be described based on the embodiments shown in the drawings. 1 to 4, reference numeral 1 denotes a casing having a cylinder portion 2, and a piston member 3 is accommodated in the cylinder portion 2 so as to be slidable along the axial direction. In this embodiment, the casing 1 has a cylindrical shape with one end opened, and is fixed so as not to be pulled out by an adhesive or the like in a state where the casing 1 is embedded in the vertical end surface 6 of the sliding body, that is, the sliding door A. The piston member 2 is formed such that its tip end can project from the vertical end face 6 of the sliding door A by a predetermined stroke, and is always forced to the retracted position by the spring 5.

  Further, a magnet 4 is fixed to the tip of the piston member 2, and a magnet adsorbing member 7 such as an iron plate adsorbed by the magnet 4 is attached to a vertical surface of the fixed frame B such as a column. The magnet 4 is set so that the end surface of the magnet is substantially flush with the end surface 6 of the sliding door A when the piston member 2 is retracted to the maximum.

  In the above configuration, when the sliding door A of FIG. 1 is opened, when the sliding door A is pressed slightly in the closing direction, that is, in the direction of the arrow and released, the sliding door as shown in FIG. Even if A rebounds slightly in the opening direction, the piston member 3 is held in a state of protruding forward while compressing the spring 5 while the magnet 4 and the magnet attracting member 7 are attracted, and then the piston member is repelled by the repulsive force of the spring 5 The sliding door A can move forward while retracting 3, and can automatically return to the closed position of FIG. Further, in the closed posture, the closed posture of the sliding door A can be maintained by the catch function by the adsorption of the magnet 4 and the magnet attracting member 7. When the sliding door A is opened, if the sliding door A is pulled in the opening direction, the sliding door A begins to open against the spring 5 even if the magnet 4 and the magnet adsorbing member 7 are strongly adsorbed, and is light due to the moving inertia of the sliding door. The magnet 4 can be easily separated from the magnet adsorbent member 7 by force, and the sliding door A can be easily opened with almost no resistance.

  The strength of the magnet 4 is selected according to the weight of the sliding door A and the friction coefficient during sliding. A preferable attracting force of the magnet 4 is such that the magnet 4 does not come off the magnet attracting member 7 even if the sliding door A bounces a little (about 5 to 10 cm) due to the reaction at the time of closing. Of course, the stroke of the piston member 3 is also preferably 10 cm or more.

  In this invention, as shown in FIG. 5, you may provide the circular collar part 9 provided with the screw hole 8 for attachment in the opening edge part of the cylindrical casing 1. As shown in FIG. The flange 8 may be formed in a rectangular shape that is long in the vertical direction, as indicated by reference numeral 9 'in FIG.

  In the present invention, as shown in FIG. 7, the mounting piece 10 having a flat surface may be formed integrally with the casing 1. Thereby, the casing 1 can be easily attached to the side surface of the sliding door without being embedded in the sliding door.

  Further, in the present invention, as shown in FIG. 8, the casing 1 of the present invention is formed integrally with the body 13 of the sliding door door 12 provided with the traveling wheels 11 and embedded in the end face of the sliding door A. It is also possible to do. Thereby, the catch and rebound prevention device of the present invention can be set on the sliding door A at the same time as the door 12 is attached.

  Further, in the present invention, as shown in FIG. 9, a cushioning member 14 such as rubber, a foamed resin material rich in elasticity or a loose spring is interposed between the rear end surface of the piston member 3 and the inner end surface of the cylinder portion 2. Is preferred. Thereby, it is possible to mitigate the occurrence of impact and sound when the piston member 3 is returned from the protruding posture by the spring 5. As shown in the figure, a buffer member 14 ′ such as rubber may be provided on the back surface of the magnet 4.

  In each of the above-described embodiments, the magnet 4 is provided at the tip of the piston member 3 and the magnet adsorbing member 7 is provided on the fixed frame B. However, it goes without saying that these may be reversed.

  The rebound prevention device of the present invention can be used as a catch-and-bounce prevention device for a drawer by being attached to, for example, the back portion of the drawer in addition to the sliding door.

It is sectional drawing which shows 1st Example of the catch and rebound prevention apparatus of the sliding body which concerns on this invention, Comprising: The state just before a sliding door is closed is shown. Sectional drawing which shows the state which the sliding door moved to the closed position from the state of FIG. The expanded sectional view which shows the state which bounced back a little by the reaction when a sliding door closed. The perspective view of the casing part of the said apparatus. The perspective view of the casing part which shows the other Example of this invention. The perspective view of the casing part which shows the further another Example of this invention. The perspective view of the casing part which shows another Example of this invention. The perspective view which shows another Example of this invention. Sectional drawing of the casing part which shows the further another Example of this invention.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Casing 2 Cylinder part 3 Piston member 4 Magnet 5 Spring 6 End surface 7 Magnet adsorbent member 11 Traveling wheel 12 Door wheel 13 Body of door wheel 14 Buffer member A Sliding door B Fixed frame

Claims (3)

  A casing having a cylinder portion and attached to a sliding body such as a sliding door; and a piston member that is slidably housed in the cylinder portion of the casing along the axial direction and that can project from a vertical end surface of the sliding body. And a magnet or a magnet adsorbing member provided at the tip of the piston member, and a spring that constantly presses the piston member back to the retracted position, and adsorbs and slides on the magnet or magnet adsorbing member when the sliding body is closed. A sliding and catching bounce prevention device for a sliding body in which a magnet attracting member or a magnet for holding a moving body in a closed posture is provided on a fixed frame.   The said piston member is provided with the buffer member which relieve | moderates the impact at the time of returning with the said spring, The catch and bounce prevention apparatus for sliding bodies of Claim 1 characterized by the above-mentioned. The sliding and catching bounce prevention device for a sliding body according to claim 1 or 2, wherein the casing is formed integrally with a sliding door door pulley provided with traveling wheels.

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