JP5679394B2 - Sliding door positioning structure - Google Patents

Description

  The present invention relates to a sliding door positioning structure for positioning a sliding door.

  The sliding door is a door that moves left and right to open and close the opening. The sliding door moves along the rail. A traveling body having wheels is provided in the rail so as to be able to travel. The sliding door is suspended from the traveling body.

  In order to facilitate the opening and closing of the sliding door, a retracting device that applies a retracting force to the sliding door is provided (see, for example, Patent Document 1). The retracting device applies a retracting force to the sliding door that has moved to a predetermined position, and the sliding door automatically closes or opens. The rail is provided with a trigger engageable with the retracting device. When the retracting device is manually moved to a certain position, the hook of the retracting device is engaged with the trigger. Then, the lock is released, and a pulling force is applied to the hook by the elastic force of the coil spring while the hook is engaged with the trigger. The pulling force acting on the hook is transmitted to the sliding door via the pulling device. Eventually, the sliding door moves to the fully closed position or the fully open position.

International Publication No. 2012/066883

  By the way, the opening may be opened and closed by moving three or more sliding doors to the left and right. If the retracting device described in Patent Document 1 is used, the sliding doors at both ends in the left-right direction can be positioned at the fully open position or the fully closed position. However, in the retracting device described in Patent Document 1, the central sliding door cannot be positioned, and the central sliding door is in an intermediate state. Since it moves easily when an object hits it, it is necessary to position the sliding door at the center, and a positioning structure for the sliding door is required.

  However, the trigger protrudes in the rail. The retracting device travels in the rail. Triggers and retractors are an obstacle to the sliding door position structure. When providing a sliding door positioning structure, how to avoid these obstacles becomes a problem.

  Then, an object of this invention is to provide the positioning structure of the sliding door which can position the sliding door in a predetermined position avoiding the obstruction in a rail.

  In order to solve the above-described problem, the invention according to claim 1 includes a rail, a traveling body in which the sliding door is suspended and traveling in the rail, a movable body provided on the traveling body so as to be movable up and down, A suction part provided on the rail; and an obstacle provided on the rail at a position away from the suction part in the length direction of the rail and below the suction part. When moving below the part, the movable body is lifted and attracted to the suction part by the attractive force of the magnet, and when the movable body passes through the obstacle, the movable body is lowered to remove the obstacle. This is a sliding door positioning structure to avoid.

  According to a second aspect of the present invention, in the sliding door positioning structure according to the first aspect, the traveling body is provided with a retraction device that applies a retraction force to the sliding door, and the obstacle is engageable with the retraction device. A trigger, and when the traveling body moves in one direction of the rail, after the retracting device passes through the suction portion, the movable body is lifted and sucked to the suction portion, and the traveling body is moved to the rail When moving in the other direction, the retracting device is engaged with the trigger and the retracting force is applied to the sliding door after the lowered movable body passes through the trigger.

  According to a third aspect of the present invention, in the sliding door positioning structure according to the first or second aspect, the suction portion is provided on an upper surface of the rail, and the movable body is in contact with the suction portion on the rail. It is characterized in that it can be perforated so that it can.

  According to a fourth aspect of the present invention, in the sliding door positioning structure according to any one of the first to third aspects, a pair of triggers are provided on both sides in the length direction of the rail, and the pair of triggers is between the pair of triggers. A suction part is provided.

  According to a fifth aspect of the present invention, in the sliding door positioning structure according to any one of the first to fourth aspects, the movable body is supported by a support body provided on the traveling body so as to be vertically movable, and the support body. Protruding portions that protrude toward the ceiling surface of the rail are provided on both sides of the rail in the width direction across the movable body.

  According to a sixth aspect of the present invention, the sliding door positioning structure according to any one of the first to fifth aspects of the three or more sliding doors moving in parallel with each other along the rail is provided in the length direction of the rail. It is a sliding door system used for positioning the sliding door of a center part.

  According to the first aspect of the present invention, since the movable body provided on the traveling body is attracted to the suction portion provided on the rail by the attractive force of the magnet, the sliding door can be positioned at a predetermined position. Since the movable body descends when passing through the obstacle, the obstacle can be avoided.

  According to invention of Claim 2, a sliding door can be positioned in arbitrary positions other than the edge part of the length direction of a rail.

  According to invention of Claim 3, since the surrounding wall of the hole of a rail becomes a level | step difference, a sliding door can be positioned reliably.

  According to invention of Claim 4, a sliding door can be positioned in the center part of the length direction of a rail.

  According to the fifth aspect of the present invention, the traveling body can be stabilized in the rail even when vertical force acts on the traveling body.

  According to invention of Claim 6, the sliding door of the center part of the length direction of a rail can be positioned.

The perspective view of the sliding door system incorporating the positioning structure of the sliding door of 1st embodiment of this invention (FIG. 1 (a) shows a closed state, FIG.1 (b) shows an open state) Detailed view of the sliding door system (FIG. 2 (a) is a plan view, FIG. 2 (b) is a side view, FIG. 2 (c) is a cross-sectional view taken along line cc, and FIG. 2 (d) is a cross-sectional view taken along line dd. Is) Exploded perspective view of rails and sliding doors of the sliding door system A perspective view of the pin slide mechanism (FIG. 4A shows a state where the pin is lowered, and FIG. 4B shows a state where the pin is raised) Cross-sectional view of the pin slide mechanism (FIG. 5A shows a state where the pin is lowered, and FIG. 5B shows a state where the pin is raised) Detailed view of magnets provided on the upper surface of the rail The figure which shows the state which the center sliding door of Fig.1 (a) moved to the edge part of an opening direction. The figure which shows the state in which the center sliding door of Fig.1 (a) was positioned. The figure which shows the state which the center sliding door of Fig.1 (a) moved to the edge part of a closing direction. Operational diagram when moving the sliding door of Fig. 9 in the opening direction The figure which shows an example of a drawing-in apparatus (FIG. 11 (a) is a top view, FIG.11 (b) is a side view)

  Hereinafter, a sliding door positioning structure according to an embodiment of the present invention will be described in detail with reference to the accompanying drawings. FIG. 1 shows a sliding door system in which the sliding door positioning structure of this embodiment is incorporated. The sliding door system includes a plurality of, for example, three parallel rails 1a, 1b, 1c, and a plurality of, for example, three sliding doors 2a, 2b, 2c. The rails 1a, 1b, and 1c correspond to the sliding doors 2a, 2b, and 2c on a one-to-one basis. The sliding doors 2a, 2b, 2c are provided with retracting devices 3a, 3b, 3c (see FIG. 3).

  As shown in FIG. 1, triggers 4 are provided on both sides of the rails 1a, 1b, 1c in the length direction. One trigger 4 is used when closing the sliding door 2, and the other trigger 4 is used when opening the sliding door 2. As the retracting device 3, a bidirectional type is used. That is, when the sliding door 2 is moved to a predetermined position in the closing direction, the pulling device 3 is engaged with one trigger 4 and applies a pulling force in the closing direction to the sliding door 2. Further, when the sliding door 2 is moved in the opening direction, the retracting device 3 is engaged with the other trigger 4 and applies a pulling force in the opening direction to the sliding door 2. When the sliding door 2 is closed or opened, the sliding door 2 hits a frame, a wall or the like (not shown). In order to maintain the closed state or the open state of the sliding door 2, the retracting device 3 further applies a retracting force in the closing direction or the opening direction to the sliding door 2 even when the sliding door 2 is closed or opened.

  1A shows a state in which the opening is closed by three sliding doors 2a, 2b, and 2c, and FIG. 1B shows a state in which the three sliding doors 2a, 2b, and 2c are opened. As shown in FIG. 1B, when the sliding door 2 is open, the sliding door 2 is moved to the end of the rail 1 in the opening direction, and the pulling force in the opening direction is applied to the sliding door 2 from the pulling device 3. Is done. For this reason, the sliding door 2 maintains the open state stably.

  As shown in FIG. 1A, when the opening is closed by the sliding door 2, the front sliding door 2 is moved in the closing direction by a force that overcomes the pulling force of the drawing device 3. When the sliding door 2 moves to a predetermined position in the closing direction, the retracting device 3 is engaged with the trigger 4 and a pulling force in the closing direction is applied to the sliding door 2. Even after the sliding door 2 moves to the end in the closing direction, the pulling device 3 applies a pulling force in the closing direction to the sliding door 2, so that the sliding door 2 maintains the closed state. When the central sliding door 2b is moved to a position intermediate between the front sliding door 2a and the rear sliding door 2c, the opening can be closed by the three sliding doors 2a, 2b, 2c.

  The sliding door 2a on the near side and the sliding door 2c on the back side maintain a closed state or an open state by the pulling force of the pulling device 3. However, the retracting device 3b of the central sliding door 2b is not activated and is in a state of hanging. A positioning structure is required for positioning the central sliding door 2b.

  As shown in FIG. 2, the positioning structure includes a magnet 5 as an attraction portion provided on the upper surface of the rail 1. The magnet 5 is fixed to the upper surface of the rail 1 by fixing means such as adhesion. The central sliding door 2 b is positioned at the central portion in the length direction of the rail 1 by the attractive force of the magnet 5. A permanent magnet having a strong magnetic force such as a neodymium magnet is used for the magnet 5 so that the sliding door 2b positioned by the magnet 5 does not move easily.

  FIG. 3 is an exploded perspective view of the rail 1 and the sliding door 2. The rail 1 is attached to the ceiling surface of a building with a countersunk screw or the like. The rail 1 is formed in a substantially C-shaped cross section, and includes an upper wall portion 1-1, a pair of left and right side wall portions 1-2, and a pair of left and right bottom wall portions 1-3. An elongated opening 6 is formed in the length direction of the rail 1 between the pair of left and right bottom wall portions 1-3. A pair of left and right wheels 7b (see FIG. 4A) of the traveling body 7 of the retracting device 3 travel on the bottom wall portion 1-3 of the rail 1.

  The rail 1 is provided with the trigger 4 and the magnet 5 described above. The trigger 4 is provided on both sides of the rail 1 in the length direction. The magnet 5 is provided between the pair of triggers 4. The trigger 4 is provided on the inner side of the rail 1 (the lower surface of the upper wall portion 1-1 of the rail 1), and the magnet 5 is provided on the outer side of the rail 1 (the upper surface of the upper wall portion 1-1 of the rail 1). (See also FIGS. 2 and 7). Although not shown, the trigger 4 has a screw part and a head, and the head is provided inside the rail 1.

  The retracting device 3 moves in the rail 1 together with the traveling body 7. Since the magnet 5 is provided in the moving range of the retracting device 3, the magnet 5 is provided on the upper surface of the rail 1 so as not to hit the retracting device 3. On the other hand, the trigger 4 must engage with the hook of the retracting device 3 and is provided at the same height as the retracting device 3. Since the magnet 5 and the trigger 4 are in the above-described positional relationship with the retracting device 3, the trigger 4 is positioned below the magnet 5.

  A pair of traveling bodies 7 are provided on the upper surface of the sliding door 2. The retractor 3 is attached to one traveling body 7 (the traveling body on the near side in FIG. 3). A pin slide mechanism 11 to be described later is provided on the traveling body 7 on the back side of the sliding door 2b. The traveling body 7 is provided with wheels 7b (see FIG. 4). The traveling body 7 includes a main body portion 7a and a plurality of wheels 7b that are rotatably supported by the main body portion 7a. A connecting shaft 7c connected to the sliding door 2 is provided at the lower part of the main body 7a. The wheels 7b are provided on both the left and right sides of the main body 7a. The trigger 4 passes between the left and right wheels 7b of the traveling body 7 so as not to hit the wheels 7b of the traveling body 7.

  4 and 5 are detailed views of the pin slide mechanism 11 provided on the traveling body 7. FIG. The pin slide mechanism 11 includes a support body 13 fixed to an end portion in the moving direction of the main body portion 7a of the traveling body 7, and a pin 12 as a movable body supported by the support body 13 so as to be movable up and down. The substantially rectangular parallelepiped support 13 is coupled to the main body 7a of the traveling body 7 by a coupling means such as a screw. A through hole 15 (see FIG. 5A) is opened in the support 13 in the vertical direction. A pin 12 as a movable body is inserted into the through hole 15 so as to be movable up and down. As shown in FIG. 4A, the support 13 is provided with protrusions 13 a that protrude upward on both sides in the width direction of the rail 1 with the pin 12 interposed therebetween. The protrusion 13a is formed in an arc shape.

  The protruding portion 13 a has a role of stabilizing the traveling body 7 in the rail 1. When the retracting device 3 is activated and the sliding door 2 hits the frame, a force to lift the sliding door 2 acts. If the protrusion 13a is provided on the support 13 to reduce the clearance between the rail 1 and the upper wall 1-1, the sliding door 2 can be prevented from lifting.

  As shown in FIG. 5B, a head 12 a is provided at the upper end of the pin 12. A flange 12b is provided at the lower end of the head 12a. The head 12a is formed in a taper whose outer shape narrows toward the upper end. The upper end surface of the head 12a is formed flat. A ring 12 c for restricting the upward movement of the pin 12 is attached to the lower end portion of the pin 12. The pin 12 is made of a soft magnetic material such as iron or silicon steel.

  The pin 12 is lowered to the lower end position shown in FIGS. 4A and 5A by its own weight. The lower end position of the pin 12 is determined by the head 12a of the pin 12 being seated on the bottom surface of the upper large diameter portion 15a of the through hole 15. The pin 12 is raised to the upper end position shown in FIGS. 4B and 5B by the attractive force of the magnet 5. The upper end position of the pin 12 is determined by the ring 12 c of the pin 12 being in contact with the upper surface of the lower large diameter portion 15 c of the through hole 15. The vertical movement of the pin 12 is guided by the middle small diameter portion 15 b of the through hole 15.

  FIG. 6 shows a detailed view of the magnet 5 provided on the upper surface of the rail 1. A hole 17 is formed in the upper wall portion 1-1 of the rail 1 so that the head 12 a of the pin 12 can contact the magnet 5. The hole 17 is formed in a taper that expands toward the pin 12. The magnet 5 is formed in a flat cylindrical shape. The outer diameter of the magnet 5 is larger than the inner diameter of the hole 17 on the smaller diameter side.

  Even if the sliding door 2 positioned by the magnet 5 is moved, the inner wall of the hole 17 of the rail 1 becomes a step, so that the movement of the pin 12 is hindered. For this reason, even if it tries to move the sliding door 2 with a light force, the sliding door 2 does not move. On the other hand, when the sliding door 2 positioned by the magnet 5 is moved with a strong force, the taper of the inner wall of the hole 17 functions to separate the magnet 5 and the pin 12. For this reason, the magnet 5 and the pin 12 can be separated.

  The operation of the retracting device 3 and the positioning structure will be described below with reference to FIGS.

  FIG. 7 shows the sliding door 2b in the center of FIG. As shown in FIG. 7, when the sliding door 2b is located at the end in the opening direction, the retracting device 3b is engaged with the trigger 4, and a pulling force in the opening direction is applied to the sliding door 2b. For this reason, the sliding door 2b maintains the open state.

  As shown in FIG. 8, when the sliding door 2b located at the end in the opening direction is moved in the closing direction (FIG. 1 (b) → FIG. 1 (a)), first, the retracting device 3b passes through the magnet 5, Thereafter, the pin 12 reaches below the magnet 5. When the pin 12 reaches below the magnet 5, the pin 12 is lifted by the attractive force of the magnet 5 and comes into contact with the magnet 5. When the pin 12 is in contact with the magnet 5, the sliding door 2 is positioned at the central portion in the length direction of the rail 1.

  FIG. 9 shows the sliding door 2b located at the end in the closing direction. When the sliding door 2b is positioned at the end in the closing direction, the retracting device 3b is engaged with the trigger 4 and a pulling force in the closing direction is applied to the sliding door 2b. For this reason, the sliding door 2b maintains the closed state.

  Next, as shown in FIG. 10, when the sliding door 2b positioned at the center in the length direction of the rail 1 is moved in the opening direction (FIG. 1 (a) → FIG. 1 (b)), the pin 12 becomes the magnet 5 The pin 12 is lowered by its own weight. When the sliding door 2b is moved in the opening direction, first, the lowered pin 12 avoids the trigger 4 and passes below the trigger 4 as shown in FIG. Thereafter, the retracting device 3b is engaged with the trigger 4 to apply a retracting force to the sliding door 2b (see FIG. 7). As described above, the sliding door 2b is automatically fully opened by the retracting device 3b.

  FIG. 11 shows an example of the retracting device 3. A known retracting device can be used as the retracting device 3. FIG. 11 shows a retracting device of Patent Document 1 filed by the applicant as an example of the retracting device 3.

  Fig.11 (a) shows the top view of the drawing-in apparatus 3, FIG.11 (b) shows a side view. The retracting device 3 is disposed between a base 23 that is elongated in the opening and closing direction, first and second sliders 21 and 22 provided at both ends in the longitudinal direction of the base 23, and the first and second sliders 21 and 22. The damper 24 is provided. The first slider 21 assists the closing operation of the sliding door 2, and the second slider 22 assists the opening operation of the sliding door 2. The damper 24 brakes the closing operation and the opening operation of the sliding door 2.

  The first slider 21 is movably provided at the end of the base 23 in the closing direction. The movement of the first slider 21 is guided to the base 23. The first slider 21 is provided with a hook 21 a that can be engaged with the trigger 4. A tension coil spring 26 as an urging member is provided between the end of the base 23 in the opening direction and the first slider 21.

  The second slider 22 is movably disposed at the end of the base 23 in the opening direction. The movement of the second slider 22 is guided to the base 23. The second slider 22 is provided with a hook 22 a that can be engaged with the trigger 4. A tension coil spring 27 as an urging member is provided between the end of the base 23 in the closing direction and the second slider 22.

  The principle by which the first slider 21 generates a pulling force is as follows. Initially, the first slider 21 is in the lock position at the end of the base 23 in the closing direction. When the sliding door 2 is moved in the closing direction, the hook 21 a of the first slider 21 comes into contact with the trigger 4. Then, the hook 21 a rotates and the first slider 21 can slide with respect to the base 23. Since a tension coil spring 26 is interposed between the first slider 21 and the base 23, a tensile force acts on the first slider 21. Since the hook 21a captures the trigger 4 fixed to the rail 1, the base 23 moves in the closing direction. As the base 23 moves in the closing direction, the sliding door 2 moves in the closing direction. The movement of the sliding door 2 in the closing direction is braked by the damper 24.

  The second slider 22 also applies a pulling force in the opening direction to the sliding door 2 on the same principle as the first slider 21.

  Note that the present invention is not limited to the embodiment described above, and can be modified to various embodiments without departing from the gist of the present invention.

  In the said embodiment, although the trigger of the drawing-in apparatus is mentioned as an example of the obstruction in a rail, the obstruction in a rail is not restricted to a trigger. As long as it protrudes into the rail, for example, a braking force applying member for decelerating the traveling body (for example, the braking applying member 3 of JP-A-9-72154, the brake shoe 6 of JP-A-2005-126933) may be used. Even a switching tool for switching between a state in which the coil spring of the retracting device stores an elastic force and a state in which the elastic force of the coil spring of the retracting device is output (for example, the switching tool 20 in JP 2012-97427 A). Good.

  In the above embodiment, a hole through which the pin passes is formed in the rail so that the pin is in direct contact with the magnet. However, a concave portion with a bottom is provided in the rail, and the pin is indirectly connected to the magnet through the concave portion of the rail. You may make it contact.

  In the above embodiment, an example of a sliding door system using three sliding doors has been described, but the number of sliding doors is not limited to three.

  In the above embodiment, the pin is lowered by its own weight, but the pin may be lowered by using the elastic force of the spring in addition to its own weight.

  In the above embodiment, the pin is made of a magnetic material and the suction part is made of a permanent magnet. However, the pin can be made of a permanent magnet and the suction part can be made of a magnetic material.

  In the above embodiment, a permanent magnet is used as the magnet, but an electromagnet may be used instead of the permanent magnet.

  In the above embodiment, the retracting device is attached to one traveling body of the pair of traveling bodies and the pin slide mechanism is attached to the other traveling body, but the retracting device and the pin slide mechanism are attached to only one traveling body. Can also be attached. Moreover, a pair of traveling body can also be made into a single traveling body. Furthermore, the traveling body, the retracting device, and the pin slide mechanism can be integrated.

  This specification is based on Japanese Patent Application No. 2013-005678 filed on January 16, 2013. All this content is included here.

DESCRIPTION OF SYMBOLS 1 ... Rail 2 ... Sliding door 3 ... Retraction apparatus 4 ... Trigger 5 ... Magnet (attraction | suction part)
7 ... Running body 12 ... Pin (movable body)
13 ... Support 13a ... Projection 17 ... Hole

Claims (6)

Rails,
A traveling body that travels in the rail while the sliding door is suspended,
A movable body provided on the traveling body so as to be movable up and down;
A suction part provided on the rail;
An obstacle provided on the rail at a position away from the suction portion in the length direction of the rail and below the suction portion;
When the movable body moves below the suction portion, the movable body is lifted by the suction force of the magnet and sucked to the suction portion,
A sliding door positioning structure in which the movable body descends to avoid the obstacle when the movable body passes through the obstacle. The traveling body is provided with a retracting device for applying a retracting force to the sliding door,
The obstacle is a trigger engageable with a retracting device;
When the traveling body moves in one direction of the rail, after the retracting device passes through the suction portion, the movable body is lifted and sucked to the suction portion,
When the traveling body moves in the other direction of the rail, the retracting device engages with the trigger and the retracting force is applied to the sliding door after the lowered movable body passes through the trigger. The sliding door positioning structure according to claim 1. The suction part is provided on the upper surface of the rail,
The sliding door positioning structure according to claim 1 or 2, wherein the rail is formed with a hole so that the movable body can come into contact with the suction portion. A pair of triggers are provided on both sides in the length direction of the rail,
The sliding door positioning structure according to claim 1, wherein the suction portion is provided between the pair of triggers. The movable body is supported by a support provided in the traveling body so as to be movable up and down,
3. The sliding door according to claim 1, wherein protrusions that protrude toward the ceiling surface of the rail are provided on both sides of the rail in the width direction across the movable body of the support body. Positioning structure. The sliding door positioning structure according to claim 1 or 2 is used to position a sliding door at a central portion in the longitudinal direction of the rail among three or more sliding doors that move in parallel with each other along the rail. Sliding door system characterized by

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