JP2008308968A - Closing damper for overhang sliding door - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a closing damper for an overhang sliding door attaining a finger pinch preventing or rebound preventing function and a sliding door bracing function applicable to an existing overhang sliding door by providing the lower end side of the sliding door with a damper, and providing the floor side with a trigger bolt for controlling the damper. <P>SOLUTION: A guide groove comprising a horizontal groove and a vertical groove and connecting both grooves by a groove of round curve shape is formed in a casing mounted to the lower end side of the sliding door, and guide pins provided at two parts of a cam plate having a first claw piece and a second claw piece at a lower part are inserted in the guide groove so that the cam plate is guided by the guide groove to tilt or linearly move in a horizontal direction. A piston rod of a damper mechanism which brakes the movement of the cam plate is bent in U-shape to connect its tip to the cam plate, and the floor side is provided with a trigger device having the trigger bolt which abuts on the first claw piece of the cam plate to place two guide pins of the cam plate in a horizontal state and to guide a groove formed at the lower end of the sliding door. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

  The present invention relates to a suspension cushioning device for a hanging sliding door having a function of preventing finger clogging or rebounding and a function of preventing sliding of the sliding door.

  JP 2005-350912 A

  Conventionally, there is an invention described in, for example, Japanese Patent Application Laid-Open No. 2005-350912 as a suspension buffer device for a hanging sliding door used as a barrier-free sliding door. However, this invention requires that the device is attached to the upper end of the sliding door. It is necessary to provide a trigger bolt to be controlled on the suspension rail side, and it is necessary to prepare a special suspension rail with a large height so that the runner rolling in the suspension rail does not get in the way. There was a problem that it could not be applied.

Object of the invention

  The present invention provides a cushioning device on the lower end side of the sliding door, and a trigger bolt for controlling this device on the floor side, thereby preventing finger clogging or rebounding and swinging prevention of the sliding door, which can be applied to existing hanging sliding doors. An object of the present invention is to provide a closing shock absorber for a hanging sliding door that can perform the function.

  A second object of the present invention is to provide a suspension cushioning device for a hanging sliding door that can be easily corrected without removing the sliding door from the fitting frame even if a malfunction occurs in the cushioning device.

Means for solving the problem

  According to a first aspect of the present invention, there is provided a suspension buffer device for a hanging sliding door, comprising a horizontal groove and a vertical groove in a casing attached to the lower end side of the sliding door, wherein both grooves are connected by a curved curve groove. A guide pin provided at two locations on the cam plate having a first claw piece and a second claw piece below is inserted into the guide groove, and the cam plate is guided by the guide groove to be tilted or horizontally linearly moved. In addition, the piston rod of the damper mechanism that brakes the movement of the cam plate is bent in a U shape or a U shape, and the tip of the piston rod is connected to the cam plate. A trigger device having a trigger bolt for guiding the groove formed at the lower end of the sliding door is provided so that the two guide pins of the cam plate are in a horizontal state by abutting on one claw piece. It is a feature.

  According to a second aspect of the present invention, there is provided a suspension door closing cushioning device according to claim 2, wherein the trigger bolt of the trigger device can be moved up and down via a spring, and An inclined surface is formed on the second claw piece or the trigger bolt of the cam plate so that the trigger bolt moves backward against the spring when the two claw pieces come into contact with the trigger bolt.

Effect of the invention

  According to the first aspect of the present invention, the triggering bolt for guiding the groove formed at the lower end of the sliding door while applying a brake during the manual closing of the sliding door to prevent finger clogging or rebounding. The side swing of the hanging sliding door is prevented by the action of.

  In the suspension cushioning device for a sliding door according to claim 2 of the present invention, even if the cam plate malfunctions, the malfunction of the cam plate can be repaired and restored to the original buffer closing posture during the manual closing operation.

  1 is an overall front view of an open state of a sliding door to which the device of the present invention is attached, FIG. 2 is an overall front view of the closed state of the sliding door to which the device of the present invention is attached, and FIG. FIG. 4 is a side view showing a state of the apparatus in the middle of closing the sliding door, FIG. 5 is a side view showing the state of the apparatus when the sliding door is closed, and FIG. 6 is a diagram when malfunction occurs. A side view showing the relationship between the cam plate and the trigger device, FIG. 7 is a side view showing another embodiment of the device of the present invention.

  In the figure, 1 is a hanging sliding door that is suspended by a runner B ... B that rolls in a suspension rail A-1 attached to the Kamoi A, and that opens and closes to the left and right. A shock absorber is attached, and a groove 1-1 is formed to serve as a guide groove for a trigger bolt attached to the floor side.

  2 is a casing of a shock absorber attached to the door butt side of the groove 1-1, and is fitted into a digging hole formed at the lower end of the sliding door 1.

  Reference numeral 3 denotes a guide groove formed on the side plate of the casing 2, which is composed of a horizontal groove 3-1 and a vertical groove 3-2, and both grooves are connected by a curved curve groove 3-3. It has a shape.

  Reference numeral 4 denotes a cam plate having a first claw piece 4-1 and a second claw piece 4-2 below, and guide pins 4a and 4b provided at two locations on the cam plate 4 are formed in the guide groove 2. The cam plate 4 is configured to be tilted or horizontally linearly moved by the movement of the guide pins 4a and 4b in the guide groove 3 through the insertion.

  In addition, even if the cam plate 4 malfunctions as described later, the cam plate 4 malfunctions when the sliding operation of the sliding door is manually performed and the second claw piece 4-2 of the cam plate 4 is automatically buffered. An inclined surface 4-2a for restoring the posture is formed.

  In the present embodiment, the inclined surface 4-2a for restoring the buffer closed state is formed on the second claw piece 4-2 of the cam plate 4. However, it may be formed on a trigger bolt of the trigger device described later. However, it may be formed on both the second claw piece 4-2 and the trigger bolt.

  Reference numeral 5 denotes a damper mechanism for braking the cam plate 4 composed of an air cylinder 5-1 and a piston rod 5-2, and the piston rod 5-2 is U-shaped or U-shaped to reduce the lateral width of the device. It is bent in a letter shape.

  The reason why the piston rod 5-2 is bent in a U-shape or a U-shape is that when the sliding door 1 is completely closed, if the cam plate 4 is not near the end of the casing 2, that is, near the door bottom, the casing 2 This is because there is a problem that the end of the door protrudes from the door butt when the sliding door has a normal width.

  That is, when the casing b of the shock absorber having the conventional linear cylinder rod a as shown in FIG. 8 is directly attached to the lower end of the sliding door as in the present invention apparatus, the trigger bolt c when the sliding door is completely closed is used. Since the engaged cam plate d is positioned closer to the center of the casing b, the width of the sliding door must be increased by the length of approximately z in order to hide the entire casing b. In this case, the width of the opening becomes narrow, and in the case of two sliding doors, the width of the overlapping part of the sliding doors becomes wider, which is indispensable when used with a normal width sliding door. It becomes a requirement.

  6 is a trigger device for controlling the movement of the cam plate 4, and the casing 6 a is attached to the floor C of the portion that is hidden by the sliding door 1 when the sliding door 1 is fully opened and fully closed and is not visible. 6-1 guides the groove 1-1 of the sliding door 1 and prevents the sliding door 1 from sideways.

  Further, the trigger 6-1 is fitted so as to be movable up and down via a spring 6-2 so as to move back into the casing 6a when the cam plate 4 malfunctions and comes into contact with the second claw piece 4-2. Yes.

  Next, a normal operation state by the apparatus of the present invention will be specifically described with reference to the drawings.

  First, when the sliding door 1 is open, one guide pin 4b of the cam plate 4 is in the position of the vertical groove 3-2 of the guide groove 3, and the cam plate 4 is inclined as shown in FIG. is there.

  In this state, the guide pin 4b is locked at the position of the vertical groove 3-2 of the guide groove 3, the cam plate 4 cannot move, and the piston rod 5-2 of the damper mechanism 5 is extended to the maximum. The state is retained.

  When the sliding door 1 is closed to the vicinity of the closed position from this state, the first claw piece 4-1 of the cam plate 4 comes into contact with the trigger bolt 6-1 of the trigger device of the sliding door 1.

  If the sliding door 1 is further pushed in the closing direction from this state, the cam plate 4 tilts clockwise as shown in FIG. 4 with the guide pin 4a as a fulcrum, and the guide pin 4b is a vertical groove 3-2 of the guide groove 3. The guide pins 4a and 4b are guided in the horizontal groove 3-1, and the trigger bolt 6-1 is connected to the first and the first of the cam plate 4 as shown in FIG. It will be in the state fitted between 2 claw pieces 4-1 and 4-2, and will be moved by hand until it becomes the heel complete closure of this state.

  When the sliding door 1 is closed from the open state, the first claw piece 4-1 of the cam plate 4 abruptly contacts the trigger bolt 6-1, but the guide pin 4b is a vertical groove 3-of the guide groove 3. Since the air cylinder 5-1 of the damper mechanism 5 absorbs the energy of the collision when it is released from the lock 2 and the lock is released, the sliding door 1 is braked and then gently until it is completely closed by the buffering action of the damper mechanism 5. Move to. In other words, since the sliding door does not close suddenly, a finger can be caught between the door tip and the pillar D to get injured, and a rebound that the door tip hits the pillar and reopens by reaction is prevented.

  In the closed state of FIG. 4, when the sliding door 1 is pushed in the opening direction, the second claw piece 4-2 is in contact with the trigger bolt 6-1, so that the cam plate 4 is moved to the right by the force pushing the sliding door 1 in the opening direction. When the guide pin 3b reaches the position of the round curve-shaped groove 3-3 of the guide groove 2, the guide pin 4b tilts counterclockwise with the guide pin 4a as a fulcrum, and the guide pin 4b The cam plate 4 is locked at the position 2 and the original sliding door 1 returns to the open state.

  As described above, each time the sliding door 1 is opened and closed, the above operation is repeated to perform a buffering action when the sliding door is closed.

  Thus, in the normal operating state of the apparatus, when the sliding door 1 is open, the guide pin 4b of the cam plate 4 is always in the position of the vertical groove 3-2 as shown in FIG. The plate 3 must be locked, but the cam plate 4 malfunctions due to some influence such as impact when the sliding door is opened and closed, and the guide pin 4b is not locked at the position of the vertical groove 3-2. When the sliding door 1 is opened, the malfunction can be eliminated by the action described later.

  That is, during normal operation, the second claw piece 4-2 is pushed by the trigger bolt 6-1 when the sliding door 1 is opened, and the cam plate 4 tilts. However, when the cam plate 4 malfunctions, it does not tilt. The sliding door 1 opens in the state as shown in FIG.

  In an apparatus that has not been improved in the past, if the sliding door 1 in this state is to be closed, the second claw piece 4-2 of the cam plate 4 collides with the trigger bolt 6-1 and beyond. The sliding door 1 could not be pushed in the closing direction, and the sliding door 1 could not be completely closed, and it was necessary to remove the sliding door from the joinery frame and eliminate the malfunction.

  In the suspension shock absorber for the hanging sliding door according to claim 2 of the present invention, the inclined surface 4-2a is formed on the second claw piece 4-2 of the cam plate 4, and the trigger bolt 6-1 is placed in the casing 6a with the spring 6-2. Since the trigger device 6 is provided so as to be freely movable up and down via the, the second claw piece 4-2 of the cam plate 4 collides with the trigger bolt 6-1 when the sliding door 1 is manually closed. However, the trigger bolt 6-1 rises against the restoring force of the spring 6-2 by the action of the inclined surface 4-2a of the second claw piece 4-2, and exceeds the upper end of the second claw piece 4-2. The sliding door 1 of FIG. 5 in which the trigger bolt 6-1 is inserted between the first claw piece 4-1 and the second claw piece 4-2 of the cam plate 4 is restored.

  Therefore, after the malfunction is resolved, the normal operation is restored. Even if the malfunction occurs, the malfunction is eliminated by simply manually closing the sliding door.

  As a means for eliminating the malfunction of the cam plate 4, an inclined surface is formed on the side surface of the second claw piece 4-2, and when the trigger bolt 6-1 contacts the second claw piece 4-2, When the sliding door swings in a direction perpendicular to the opening / closing direction by the action of the inclined surface, the trigger bolt 6-1 passes through the second claw piece 4-2, and the first claw piece 4-1 and the second claw piece 4-2. Various methods such as a method of returning the sliding door 1 of FIG. 3 with the trigger bolt 6-1 interposed between them have been considered, but the improvement means of the present invention was optimal from the viewpoint of certainty.

The invention's effect

    As described above, according to the sliding door closing shock absorber of the present invention, the casing attached to the lower end side of the sliding door is composed of a horizontal groove and a vertical groove, and both grooves are connected by a curved curve groove. The guide plate provided at two locations on the cam plate having the first claw piece and the second claw piece below is inserted into the guide groove, and the cam plate is guided by the guide groove and tilted. The piston rod of the damper mechanism that is configured to move in a horizontal linear motion and brakes the movement of the cam plate is bent in a U shape or a U shape, and its tip is connected to the cam plate. A trigger device having a trigger bolt for guiding the groove formed at the lower end of the sliding door is provided so that the two guide pins of the cam plate are in a horizontal state by contacting the first claw piece of the plate The shock absorber with the bottom edge of the sliding door By installing the trigger bolt on the floor side to control this device, there is no need to prepare a special suspension rail with a large height so that the runner rolling in the suspension rail does not get in the way. It is possible to provide a suspension cushioning device for a hanging sliding door that can be applied to the hanging sliding door as it is, and that can exhibit a function of preventing finger clogging or rebounding and a swing-rest function of the sliding door.

  Further, in the suspension shock absorber for the hanging sliding door according to claim 2, when the trigger bolt of the trigger device is configured to be movable up and down via a spring, and when the second claw piece of the cam plate contacts the trigger bolt The cam plate has a slanted surface on the second claw piece or trigger bolt so that the trigger bolt moves backward against the spring. Even if the cam plate malfunctions, the cam plate Thus, the malfunction can be restored and the system can be restored to the buffer closed state, and an excellent effect can be obtained that the sliding door can be easily corrected without removing it from the joinery frame.

  It should be noted that the present invention is intended to prevent finger clogging or rebound when all the hanging sliding doors are manually opened / closed. However, as shown in FIG. 7, the spring that urges the piston rod of the damper mechanism to always retract. If X is provided or a spring is built in the cylinder of the damper mechanism, it is possible to change to a semi-automatic closing device that automatically and gently closes during manual closing.

  It is a whole front view of the open state of the sliding door which attached this invention apparatus.   It is a whole front view of the closed state of the sliding door which attached this invention apparatus.   It is a side view showing the state at the time of sliding door opening of this invention apparatus.   It is a side view showing the state at the time of sliding door closing of the device.   It is a side view showing the state in the middle of the sliding door closing of the apparatus.   It is a side view showing the relationship between the cam plate and the trigger device when a malfunction occurs.   It is a side view showing the other Example of this invention apparatus.   It is a side view showing the state which attached the conventional shock absorber to the sliding door lower end.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Hanging sliding door 2 Casing 3 Guide groove 4 Cam board 5 Damper mechanism 6 Trigger device

Claims (2)

  A guide groove is formed in the casing attached to the lower end side of the sliding door. The guide groove includes a horizontal groove and a vertical groove, and both grooves are connected by a curved curve groove. The first claw piece and the second claw piece are formed below. A guide pin provided at two positions of the cam plate having a guide is inserted into the guide groove so that the cam plate is guided by the guide groove and tilted or horizontally linearly moved, and the cam plate is braked. The piston rod of the damper mechanism is bent into a U shape or a U shape, and the tip is connected to the cam plate. The two guide pins of the cam plate are in contact with the first claw piece of the cam plate on the floor side. A suspension cushioning device for a hanging sliding door, characterized in that a trigger device having a trigger bolt for guiding the groove formed at the lower end of the sliding door is provided so as to be in a horizontal state.   In the closing shock absorber of the hanging sliding door according to claim 1, when the trigger bolt of the trigger device is configured to be movable up and down via a spring, and when the second claw piece of the cam plate comes into contact with the trigger bolt, 2. The suspension cushioning device for a hanging sliding door according to claim 1, wherein an inclined surface is formed on the second claw piece or the trigger bolt of the cam plate so that the trigger bolt moves backward against the spring.

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