JP2016079746A - Closing operation suppressing structure of sliding door - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a closing operation suppressing structure of a sliding door capable of temporarily stopping the sliding door at an optional opening position for a prescribed time.SOLUTION: A closing operation suppressing structure of a sliding door includes a guide rail 12 along a door panel, and a unit member 20 slidably supported by a guide member 14, and the unit member includes a base member 21, a rocking member 22, a roller 23 made of an elastic material, a suppressing member, and an energizing member. When the sliding door is energized from a neutral position to an open direction or a close direction, the roller 23 of the rocking member is separated from the suppressing member, and elastic deformation is reduced, and frictional force is also reduced. Accordingly, the roller 23 is abutted and rolled onto an inner side surface of the guide rail 12, and the sliding door can be moved. After that, when energizing of the sliding door to the open direction is released, the rocking member 22 is moved to the neutral position by the energizing means, the roller 23 is pressed by the guide rail 12, and the frictional force between the roller 23 and the suppressing member is increased, and the sliding door is stopped. When the sliding door is further energized to the close direction, the elastic deformation is reduced, and the sliding door is moved to the close direction.SELECTED DRAWING: Figure 10

Description

  The present invention relates to a sliding door closing operation suppressing structure having a stop function for stopping a sliding door supported by an opening so as to be opened and closed at an arbitrary open position.

Conventionally, sliding doors are sometimes used to open and close openings such as doorways between rooms in a house.
Such a sliding door is supported by, for example, a closing operation suppressing structure including a guide member that travels along a guide rail provided along the upper edge of the opening. The sliding door opens or closes the opening when the guide member travels along the guide rail and moves toward one or both sides of the opening. And in order to improve operativity at the time of opening and closing of a sliding door, the self-closing type sliding door provided with the self-closing means which moves the opened sliding door to a closed position automatically is known.
Such a self-closing sliding door can be used for example by using a spring or by installing the guide rail so as to be lowered on the closed position side without supplying energy from the outside. Can be realized.

  By the way, in such a self-closing sliding door, when the sliding door is opened, the sliding door immediately moves in the closing direction by the self-closing means. For example, when a person tries to open the sliding door and pass through the opening. It is necessary to hold the sliding door by hand until it completely passes through the opening, and there is a problem in terms of operability, particularly when a wheelchair is used, for example.

On the other hand, there is already known a sliding door in which the sliding door is stopped at the fully open position. According to the sliding door having such a temporary stop function, since the sliding door is locked in the fully open position by fully opening the sliding door, there is no need to keep the sliding door down when a person passes through the opening, It is possible to pass through the opening slowly and safely.
However, since the sliding door is locked only in the fully open position, if it is desired to lock the sliding door at the time of opening, the sliding door must always be opened to the fully open position, and the operation becomes complicated. If it is not operated in the closing direction, there is a problem that the closing of the sliding door by the self-closing means is not started.

Patent Document 1 discloses a self-closing type sliding door unit configured to stop the sliding door at an arbitrary open position.
According to this self-closing type sliding door unit, when the sliding door is operated to open against the self-closing force of the self-closing means and stopped halfway at any open position, a self-closing force is generated and the guide member is moved to the middle stop position. By shifting, the sliding door is stopped at a midway position, and this midway stop is maintained.

  However, in the self-closing type sliding door unit according to Patent Document 1, the halfway stop of the sliding door stopped halfway is maintained as it is. Therefore, when closing the sliding door, it is necessary to operate the sliding door once in the closing direction and shift the guide member from the halfway stop position so that the sliding door can be moved in the closing direction by the self-closing means. Becomes complicated.

On the other hand, Patent Document 2 by the present applicant discloses a sliding door closing operation suppressing structure having a function of temporarily stopping a sliding door at an arbitrary open position.
According to this sliding door closing operation suppressing structure, when the sliding door is released, when the sliding door is released from the opening side at an arbitrary opening position, the free roller is sandwiched between the gear member and the base member. As a result, the moving speed in the closing direction becomes low due to the resistance force in the reverse direction, and it is visually recognized as if it is temporarily stopped. After that, when the free roller rides on the second regulating roller and the free roller can freely rotate, the above-described resistance force disappears, and the sliding door is closed by the urging force of the first urging means. To move at high speed.

  Thus, when a person opens the sliding door and passes through the opening, if the sliding door is opened to any open position without fully opening the sliding door, the sliding door is substantially temporarily stopped at the arbitrary open position, and then It is automatically closed by one biasing means. Therefore, since the sliding door is temporarily stopped at the arbitrary opening position for a predetermined time after the sliding door is opened to the arbitrary opening position, there is no need to manually hold the sliding door at the arbitrary opening position. The sliding door can be easily passed through the opening, and then the sliding door automatically moves to the closed position, so that the opening / closing operation of the sliding door can be easily performed.

JP 2005-054483 A Japanese Patent Application No. 2012-253767

  However, in the sliding door closing operation suppressing structure according to Patent Document 2, the base member, the free roller, the first and second regulating rollers, and the second urging force that contact the peripheral surface of the gear member for stopping the sliding door. Since members are provided and the number of parts is increased, and the mutual positional relationship needs to be accurate, it is necessary to increase the working precision and mutual positioning precision of each part. For this reason, the manufacturing cost of each part becomes high, and assembly takes time.

  In view of the above points, the present invention provides a sliding door closing operation suppressing mechanism that can keep parts costs and assembly costs low with a simple configuration and can stop the sliding door at an arbitrary open position. It is intended to provide.

  According to the configuration of the present invention, the above object is supported by the guide member so as to be slidable in the longitudinal direction of the guide rail along the guide rail provided on one upper edge or lower edge of the door frame or the door plate. A unit member provided on the other upper end or lower end side of the door frame or door plate of the sliding door, the unit member extending in a lateral direction perpendicular to a longitudinal direction of the guide rail in the base member and the base member; A swinging member supported so as to be swingable around a swinging shaft provided, and rotatably supported at a free end of the swinging member, rolling the inner side surface of the guide rail in the longitudinal direction; A relative position in the longitudinal direction of the swinging member is variable, a roller having at least a peripheral surface region made of an elastic material, a suppressing member that constantly suppresses rotation of the roller, and the swinging member, Biasing means for biasing to a neutral state substantially perpendicular to the id rail, and when the sliding door is biased in the opening direction or the closing direction from the neutral position, the roller of the swing member is By rolling in contact with the inner surface of the guide rail, the swing member moves to the inner surface side of the guide rail, the resistance from the restraining member decreases, and the friction force from the roller is reduced. When the swinging member swings toward the opposite side to the moving direction of the sliding door and the biasing in the opening direction of the sliding door is released, the swinging member returns to the neutral position, The roller is pressed by the guide rail and is shifted to the restraining member side in the swinging member, and the rolling of the roller is restrained by the swinging member, so that the movement of the sliding door is restrained. With features That, by the closing operation suppression structure of the sliding door, it is achieved.

According to the above configuration, the door plate of the sliding door is suspended so as to be openable and closable by engaging the guide rail with the guide rail at the upper part or the lower part of the door frame. Moving to the closed position and stopping, the opening is automatically closed.
Here, when a person urges the sliding door in the opening direction to open the sliding door, the roller rolls on the inner surface of the guide rail as the sliding door moves in the opening direction, and the free end of the swinging member is moved. Relatively swings in the sliding door closing direction. At this time, the rotation of the roller is restrained by the restraining member, but the restraining force is small compared to the force for opening the sliding door, and is almost equal to the force required for opening the conventional sliding door. The sliding door can be opened.
When the swinging member moves beyond the neutral position in the sliding door closing direction, the roller moves in a direction away from the suppressing member, so that the elastic deformation of the roller is reduced and the frictional force between the roller and the suppressing member is reduced. Get smaller. Therefore, the roller rolls on the inner surface of the guide rail, and the sliding door can be easily moved in the opening direction.

After that, when the biasing in the opening direction of the sliding door is released at any open position, the swinging member swinging in the sliding door closing direction side is moved toward the neutral position by the biasing means, that is, the sliding door is opened. Swing in the direction. Accordingly, the roller is pressed from the inner side surface of the guide rail toward the suppressing member, and the frictional force between the roller and the suppressing member is increased, so that the rotation of the roller is suppressed, and the sliding door is stopped.
When the sliding door is urged in the closing direction from the neutral state and the swinging member further swings in the sliding door opening direction beyond the neutral position, the roller is pressed against the restraining member as the swinging member swings. Becomes weaker and elastic deformation becomes smaller. As a result, the roller rolls on the inner side surface of the guide rail, and the sliding door can move in the closing direction.

In this way, when the sliding door is opened, when the sliding door is released at any open position and the bias to the opening side is released, the sliding door increases the frictional force between the roller and the restraining member, The sliding door stops.
Thereafter, when the swinging member swings beyond the neutral position, the frictional force between the roller and the restraining member is reduced, and the roller rolls on the inner surface of the guide rail, and the sliding door is closed. It becomes possible to move to.
Thus, when a person opens the sliding door and passes through the opening, if the sliding door is opened to an arbitrary opening position without fully opening the sliding door, the sliding door stops at the arbitrary opening position. Therefore, after opening the sliding door to any open position, the sliding door is substantially stopped at any open position, so there is no need to manually hold the sliding door at any open position and the opening can be easily opened. You will be able to pass through.

In the sliding door closing operation suppressing structure according to the present invention, preferably, the base member is integrally attached to the guide member provided in the sliding door.
According to this configuration, by attaching the guide member to the sliding door, the closing operation suppressing structure can also be attached to the sliding door at the same time. Therefore, the main closing operation suppressing structure can be easily assembled to the sliding door in a short time.

In the sliding door closing operation suppressing structure according to the present invention, preferably, the swinging member is formed on a cylindrical surface coaxial with the swinging shaft and on the sliding door opening direction side and the sliding door closing direction side continuously with the cylindrical surface. The leaf spring has a cam surface formed of a plane perpendicular to the guide rail in the neutral position, and the urging means clamps the region of the cam surface of the swing member from the sliding door opening direction and the sliding door closing direction. It is.
According to this configuration, the biasing means elastically pinches the cam surface of the swing member, so that the swing member swings from the neutral position to either side based on the shape of the vertical plane. In the state of being, it is always biased toward the neutral position.

In the sliding door closing operation suppressing structure according to the present invention, the base member preferably includes a stopper for restricting the swinging of the swinging member on the sliding door opening direction side and the sliding door closing direction side of the swinging shaft.
According to this configuration, the swinging range of the swinging member is restricted by the swinging member coming into contact with the stopper when the sliding door is opened and closed.

In the sliding door closing operation suppressing structure according to the present invention, preferably, the suppressing member is a friction member that contacts the surface of the roller.
According to this structure, when a roller contacts a suppression member, rotation of a roller is suppressed by the friction between a roller and a suppression member. Further, if the suppressing member can be configured integrally with the swing member, the structure can be further simplified and the assembling accuracy can be improved.

  As described above, according to the present invention, it is possible to provide a sliding door closing operation suppressing structure that can stop the sliding door at an arbitrary closed position with a simple configuration.

It is a schematic front view which shows the whole structure of the self-closing type sliding door incorporating one Embodiment of the closing operation | movement suppression structure of the sliding door by this invention. It is a front view which shows the structure of the closing operation | movement suppression structure of the sliding door integrated in the sliding door of FIG. It is a top view of the closing operation | movement suppression structure of the sliding door of FIG. It is a front view at the time of the sliding door closing of the closing action suppression structure of the sliding door of FIG. It is a right view of the closing operation | movement suppression structure of the sliding door of FIG. It is the disassembled perspective view seen from the upper left direction of the unit member in the closing operation | movement suppression structure of the sliding door of FIG. It is the disassembled perspective view seen from the lower right direction of the unit member in the closing operation | movement suppression structure of the sliding door of FIG. FIG. 3 is an enlarged perspective view in which an extension part on the foremost side of the swing member in the sliding door closing operation suppressing structure of FIG. 2 is omitted. It is the elements on larger scale which show the state at the time of (A) neutral position and (B) closing which show the principal part in the closing operation | movement suppression structure of the sliding door of FIG. It is sectional drawing which shows sequentially the operation | movement at the time of the temporary stop function action | operation of the closing operation suppression structure of the sliding door of FIG.

FIG. 1 shows a state in which an embodiment of a sliding door closing operation suppressing structure according to the present invention is incorporated in a sliding door.
In FIG. 1, the sliding door closing operation suppressing structure 10 is supported so as to be movable in the longitudinal direction (X direction) along a guide rail 12 provided on an upper edge of a door frame 11 of an opening provided in a building or the like. It is comprised by the unit member 20 arrange | positioned at the upper edge of the sliding door (door plate) 13.
Here, the sliding members 13 move in the longitudinal direction along the guide rails 12 as the guide members 14 and 14 attached near both ends of the upper edge travel along the guide rails 12.

  Here, as shown in FIGS. 2, 3 and 5, the guide rail 12 is made of, for example, a long aluminum material having a hollow cross section, and the lower side in the Z direction is open. As shown in FIG. 5, the lower edges of both sides in the lateral direction (Y direction) perpendicular to the longitudinal direction are folded back inward to form a rail portion 12a whose tip is directed upward.

  The guide member 14 has a known configuration, and as shown in FIGS. 2 to 4, a main body 14 a attached to a recessed portion 13 a provided on the upper edge of the sliding door 13 in the vicinity of both ends of the upper edge of the sliding door 13. , And a pair of wheels 14d that are rotatably spaced from each other in the X direction and supported on a support portion 14c that is connected upward from the upper end of the main body 14a via a shaft portion 14b.

  The support portion 14c extends from the upper end of the shaft portion 14b toward both sides in the X direction, and includes a protruding portion 14e on one side (in the illustrated case, the right side).

As shown in FIGS. 2 and 3, the wheels 14 d are arranged on both sides in the Y direction of a region extending on both sides in the X direction of the support portion 14 c.
The rotating shaft of the wheel 14d is arranged so as to penetrate the support portion 14c in the Y direction so as to extend on both sides in the guide rail 12, and each wheel 14d rides on the corresponding rail portion 12a in the guide rail 12. As a result, the rail 12a rolls as the sliding door 13 opens and closes.

  As shown in FIG. 1, the unit member 20 is one end (in the case of illustration) of the support part 14c of the guide member 14 of one (left side in FIG. 1) among the two guide members 14 attached to the upper end of the sliding door 13. , Right end).

  As shown in FIGS. 2 to 7, the unit member 20 includes a base material 21, a swing member 22, a pair of rollers 23, a suppression member 24, and a biasing member 25 as a biasing unit.

  The base member 21 includes a recessed portion 21a on the sliding door opening side, that is, on the left side in FIG. 2, and this recessed portion 21a engages with a protruding portion 14e provided at the right end of the support portion 14c of the guide member 14. As a result, it is integrally attached to the support portion 14c and fixed and held by the fixing screw 21b.

The base member 21 has a sliding door closing side, that is, a right side in FIG. 2, and both side walls located on the bottom and both sides in the longitudinal direction. The bearing member 21c provided on each side wall swings the swinging member 22. A moving shaft 22a (described later) is supported so as to be slidable and swingable in the vertical direction.
Here, the bearing portion 21c is open at the top, whereby the swing shaft of the swing member 22 is supported so as to be slidable in the vertical direction within the bearing portion 21c.

As shown in FIGS. 6 to 8, the oscillating member 22 includes an oscillating shaft 22a and two pairs of extensions 26a, 26b, 26c, and 26d that extend radially from both ends of the oscillating shaft 22a. It is configured.
The oscillating member 22 includes a cam surface 22b including a cylindrical surface 22c coaxial with the oscillating shaft 22a and a flat surface 22d continuous with the cylindrical surface in a central region between the extension portions 26b and 26c. .
The cam surface 22b is defined so that the flat surface 22d is positioned substantially vertically on both sides in the X direction of the swing shaft 22a when the swing member 22 is in the neutral position (position shown in FIG. 2).

Further, the swing member 22 has a friction surface having a large friction coefficient on the peripheral surface of the swing shaft 22a in a region between the extension portions 26a and 26b and a region between the extension portions 26c and 26d. Yes.
This friction surface functions as a restraining member 24 that suppresses the rotation of a roller 23, which will be described later. For example, the peripheral surface of the swing shaft 22a is surface-treated, or a film made of a material having a large friction coefficient is formed on the surface. ,It is configured.

Here, stoppers 21 d and 21 e are provided on both side surfaces of the base member 21 in order to restrict the swinging of the swinging member 22 from the neutral position to both sides.
Thereby, when the swinging member 22 swings clockwise in FIG. 2, the extension portions 26b and 26c abut against the stopper 21d, thereby restricting the clockwise swinging and counterclockwise. , The extension portions 26b and 26c come into contact with the stopper 21e, thereby restricting the counterclockwise swing.

  The pair of rollers 23 are disposed between the extension portions 26a and 26b and between the extension portions 26c and 26d through the resin washers 26e among the extension portions 26a to 26d of the swing member 22, respectively. The roller shaft 23a inserted into the shaft hole provided at the tip of the extension portions 26a and 26d and the roller shaft 23b inserted through the shaft hole provided at the tip of the extension portions 26c and 26d are rotatably supported. Yes. The shaft hole has a margin in which the roller shaft 23a can slide in the longitudinal direction of the oscillating member 22, and the roller shaft 23a can be displaced in the shaft hole in the direction toward the restraining member 24 or the guide rail 12 side.

Each roller 23 is made of an elastic material such as polyurethane resin at least in the surrounding area.
Since each roller 23 is always in contact with the surface of the restraining member 24 provided in the vicinity of both ends of the swing shaft 22a of the swing member 22, the peripheral surface of each roller 23 and the restrain member The rotation of each roller 23 is suppressed based on the friction generated between the surfaces of the rollers 24.

The biasing member 25 includes a pair of plate springs 25a and 25b and a spring holder 25c.
As shown in FIG. 2, the leaf springs 25a and 25b are each formed by bending into an L shape, and a vertical portion extending downward sandwiches the cam surface 22b of the swing member 22 from both sides in the X direction. Are arranged as follows. Further, horizontal portions extending from the upper ends of the vertical portions of the leaf springs 25a and 25b to the opposite sides are held by the spring holder 25c with respect to the upper mounting portion of the base member 21. The spring holder 25c is fixed to the base member 21 by mounting screws 25d.

As shown in FIGS. 2 and 9A, the vertical portions of the leaf springs 25a and 25b are arranged at the same interval as the width in the X direction of the flat surface 22d at the neutral position of the cam surface 22b.
Thus, when the swinging member 22 swings to either side from the neutral position as the sliding door 13 opens and closes, for example, as shown in FIG. 9B, when the sliding door 13 moves in the closing direction, the swinging member 22 is swung counterclockwise, the cam surface 22b is rotated integrally with the rocking shaft 22a, the plane 22e is inclined, and the leaf springs 25a and 25b are elastically deformed so as to be separated from each other.
Therefore, the restoring force by this elastic deformation acts to press the flat surface 22d of the cam surface 22b and return the swinging member 22 to the neutral position.

Thus, the swing member 22 is always urged toward the neutral position, and each roller 23 pivotally supported at the tip of the swing member 22 is directed from the upper surface inside the guide rail 12 toward the restraining member 24. Will be pressed.
That is, when the swing member 22 swings from the restriction position on one side toward the neutral position, the roller 23 is pressed from the inner upper surface of the guide rail 12, so that the roller shaft 23a moves toward the swing member 22 side. Thus, the roller 23 becomes the maximum elastic deformation amount at the neutral position while being further compressed. That is, in this state, since the suppressing member 24 and the roller 23 are in close contact with each other, the frictional force is maximized, and the swinging of the swinging member 22 is suppressed and the stopped state is entered. Then, as the sliding door is further moved, when the swing member 22 moves toward the other restriction position beyond the neutral position, the roller 23 gradually reduces the compression amount, It becomes possible to move toward the restriction position.

The sliding door closing operation suppressing structure 10 according to the present invention is configured as described above and operates as follows.
First, when the sliding door 13 is opened to an arbitrary position, the roller 23 is rotated counterclockwise due to the friction between the roller 23 of the swing member 22 and the inner upper surface of the guide rail 12 by the opening operation of the sliding door 13. The swinging member 22 swings clockwise while rolling.
As the swinging member 22 swings, the swinging shaft 22a also rotates clockwise, and the flat surface 22d of the cam surface 22b is inclined, so that the leaf springs 25a and 25b of the biasing member 25 are separated from each other. Elastically deforms in the direction.
At this time, the rotation of the roller 23 is suppressed by the friction between the roller 23 and the suppression member 24, but the suppression force by the suppression member 24, that is, the frictional force is smaller than the force that opens the sliding door 13. The opening of 13 is not prevented.
When the swinging member 22 swings beyond the neutral position, the roller 23 is separated from the swinging member 22 side by the force received from the upper surface of the inner surface of the guide rail 12, so that the elastic deformation of the roller 23 is reduced. Since the frictional force between the roller 23 and the restraining member 24 becomes small, the sliding door moves more easily in the opening direction.

  When the sliding door 13 is further opened, as shown in FIG. 10A, the extension portions 26c and 26d of the swing member 22 abut against the stopper 21d, thereby restricting the swinging of the swing member 22 in the clockwise direction. Is done. Therefore, the roller 23 rolls on the inner upper surface of the guide rail 12, and the sliding door 13 easily moves in the opening direction.

After the sliding door 13 is opened in this way, when the operator stops moving the sliding door 13 in the opening direction and releases the hand, the sliding door 13 automatically tries to move in the closing direction. The swinging member 22 swings toward the neutral position when the flat surface 22d of the cam surface 22b is pressed by the restoring force of the leaf springs 25a and 25b of the biasing member 25.
As a result, as shown in FIG. 10B, the roller shaft 23a of the roller 23 approaches the swinging member 22, and the roller 23 is further compressed. The frictional force increases further, and the rotation of the roller 23 on the inner upper surface of the guide rail 12 is decelerated in combination with the suppression of the rotation of the roller 23 by the suppression member 24.

Further, when the swinging member 22 swings counterclockwise and reaches the neutral position shown in FIG. 10C, the roller 23 shifts to the swinging member 22 side, and the compression deformation of the roller 23 described above. The frictional force generated between it and the restraining member 24 is maximized, and the swinging of the swinging member 22 is stopped. Thereby, the closing operation of the sliding door 13 is prevented and stopped.
When an operation for biasing the sliding door 13 in the closing direction is performed from this state, the stopped state due to friction between the roller 23 and the suppressing member 24 is released, and the swinging member 22 is counterclockwise beyond this neutral position. As shown in FIG. 10D, the roller shaft 23 a of the roller 23 moves away from the suppressing member 24 as the swinging member 22 swings. And the amount of elastic deformation by compression of the roller 23 becomes small, and the frictional force between the roller 23 and the suppressing member 24 also becomes small.
As a result, the swinging member 22 swings, and the extension portions 26c and 26d of the swinging member 22 abut against the stopper 21e, whereby the swinging of the swinging member 22 in the counterclockwise direction is restricted.
At this time, the elastic deformation due to the compression of the roller 23 is minimized, and the frictional force between the roller 23 and the suppressing member 24 is also minimized.

  In this way, when the sliding door 13 is stopped open, the swinging member 22 is urged and returned to the neutral position, whereby the roller 23 is compressed and the friction between the roller 23 and the suppressing member 24 increases. Thus, the swinging of the swinging member 22 is decelerated, so that the sliding door 13 stops at the open stop position.

  Therefore, even if the operator opens the sliding door 13 to an arbitrary halfway opening position without fully opening the sliding door 13 and releases the hand from the sliding door 13, the sliding door 13 stops at the halfway opening position. The operator can slowly pass through the opening in which the sliding door 13 is installed without using the sliding door 13 and freely using both hands.

Here, depending on the installation accuracy of the opening in which the door frame 11 is installed, when the sliding door 13 is attached to the door frame 11, a gap or a guide between the upper edge of the sliding door 13 and the lower edge of the door frame 11. The mounting position of the rail 12 may vary.
As described above, since the base member 21 constituting the unit member 20 is integrally attached to the support portion 14c of the guide member 14 attached to the upper end of the sliding door 13, the guide member 12 is guided with respect to the rail portion 12a of the guide rail 12. When the wheel 14d of the member 14 is on, the entire unit member 20 is accurately positioned with respect to the guide rail 12, and attachment adjustment to the guide rail 12 is unnecessary. Furthermore, since the restraining member 24 is configured integrally with the swing member 22, the mounting accuracy is not required, and the sliding door 23 is temporarily stopped by the frictional force between the roller 23 and the restraining member 24. Can be realized.

The present invention can be implemented in various forms without departing from the spirit of the present invention.
For example, in the above-described embodiment, the urging member 25 includes the leaf springs 25a and 25b as the urging means for generating the urging force, but is not limited thereto, and other urging means may be used. Good.

  In the embodiment described above, the restraining member 24 as the restraining means is configured as a friction surface provided on the rocking shaft 22a of the rocking means 22 so as to contact the peripheral surface of the roller 23. The present invention is not limited to this, and a friction member that abuts on the surface of the roller 23 or a suppression unit that suppresses rotation of the roller shaft may be used.

  In the embodiment described above, the guide rail is attached to the upper edge of the door frame 11 and the guide member and the unit member are attached to the upper end of the sliding door 13. A guide rail may be attached to the edge, and a guide member and a unit member may be attached to the lower end of the sliding door 13.

  Further, in the above-described embodiment, the guide rail is attached to the door frame side, and the guide member and the unit member are attached to the sliding door side. However, the guide rail is attached to the sliding door side, and the door frame is not limited thereto. A guide member and a unit member may be attached to the side.

  As described above, according to the present invention, there is provided an extremely excellent sliding door closing operation suppressing structure capable of stopping the sliding door at an arbitrary open position with a simple configuration.

10 Sliding door closing movement suppression structure 11 Door frame 12 Guide rail 13 Sliding door (door plate)
14 Guide member 20 Unit member 21 Base member 21d, 21e Stopper 22 Oscillating member 22a Oscillating shaft 22b Cam surface 22c Cylindrical surface 22d Plane 23 Roller 23a Roller shaft 24 Suppressing member 25 Energizing member 25a, 25b Leaf spring

Claims (6)

The other upper end of the door frame or door plate of the sliding door supported slidably in the longitudinal direction of the guide rail by a guide member along a guide rail provided on one upper edge or lower edge of the door frame or door plate or Having a unit member provided on the lower end side;
The unit member is
A base member;
In the base member, a swinging member that is swingably supported around a swinging shaft extending in a lateral direction perpendicular to the longitudinal direction of the guide rail;
The guide member is rotatably supported at a free end of the swinging member, and the inner surface of the guide rail rolls in the longitudinal direction, and the relative position in the longitudinal direction of the swinging member is variable. A roller whose region is made of an elastic material;
A suppressing member that always suppresses rotation of the roller;
Urging means for urging the swinging member in a substantially vertical neutral state toward the guide rail,
When the sliding door is urged in the opening direction or the closing direction from the neutral position, the roller of the swing member abuts against the inner surface of the guide rail and rolls, so that the guide rail in the swing member The resistance from the restraining member is reduced, and the swinging member swings toward the side opposite to the moving direction of the sliding door based on the frictional force from the roller,
When the urging of the sliding door in the opening direction is released, the swinging member returns to the neutral position, so that the roller is pressed by the guide rail, and the swinging member moves toward the restraining member. The movement of the sliding door is suppressed by changing, and the rolling of the roller is suppressed by the swing member.
A structure for suppressing the closing operation of a sliding door.   The sliding door closing operation suppressing structure according to claim 1, wherein the base member is integrally attached to the guide member. The swinging member is formed on a cylindrical surface coaxial with the swinging shaft, and is formed on the sliding door opening direction side and the sliding door closing direction side continuously to the cylindrical surface and from a plane perpendicular to the guide rail in the neutral position. Having a cam surface,
3. The sliding door closing operation suppressing structure according to claim 1, wherein the biasing means is a leaf spring that clamps a region of the cam surface of the swing member from a sliding door opening direction and a sliding door closing direction.   The closing of the sliding door according to any one of claims 1 to 3, wherein the base member includes a stopper for restricting the swinging of the swinging member on the sliding door opening direction side and the sliding door closing direction side of the swinging shaft. Motion suppression structure.   The sliding door closing operation suppressing structure according to any one of claims 1 to 4, wherein the suppressing member is a friction member that contacts the surface of the roller.   The sliding member closing operation suppression structure according to any one of claims 1 to 5, wherein the suppression member is configured integrally with the swing member.