JP2016102291A - Sliding door device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a sliding door device, automatically closed without executing closing operation thereafter, by operating the braking function in closing operation time, regardless of an opened position of a sliding door.SOLUTION: A sliding door device comprises a sliding door 1 for freely traveling in the predetermined direction, sliding door energization means for energizing the sliding door 1 in the closing direction, an optional position stopping mechanism 20 having a contact body 21 for contacting with a rail part 11a extending in the travel direction of the sliding door 1 and imparting force so as to stop the sliding door in an optional position by switching an attitude when trying to move when the sliding door 1 is switched in the closing direction from the opening direction, a braking holding mechanism 30 for temporarily holding the sliding door 1 in an opening state by temporarily braking the fact of moving in the closing direction from a position of trying to stop the sliding door 1 by this optional position stopping mechanism 20 and interlocking means 40 for interlocking the optional position stopping mechanism 20 and the braking holding mechanism 30.SELECTED DRAWING: Figure 3

Description

  The present invention relates to a sliding door device provided with a self-closing type sliding door.

  A so-called self-closing type sliding door device including a sliding door that automatically performs a closing operation is already widely known. As this type of sliding door device, a wheel attached to the upper side of the sliding door is slidably mounted on a rail part inclined so that the closing direction side is downward, and the biasing force based on the weight of the sliding door A structure for automatically closing is known. In addition, a mainspring spring or a coil spring that is biased in the closing direction is provided and is automatically closed by this biasing force, or a weight is provided and the sliding door is moved in the closing direction by the biasing force due to the weight of this weight. Pulling structures are also known.

  In such a self-closing type sliding door device, after the sliding door is opened, it is automatically closed even if the person does not perform the closing operation, so that it is convenient that the person does not need to perform the closing operation. However, if you let go of the sliding door when you open the sliding door, it immediately starts moving in the closing direction, so for people who take time to pass through the opening opened by the sliding door, wheelchair passengers, etc. There is a disadvantage that it must continue to close until it passes.

In order to improve such disadvantages, there are sliding door devices disclosed in Patent Document 1 and Patent Document 2.
In the sliding door device disclosed in Patent Document 1, a wheel attached to the upper side portion of the sliding door is mounted on a rail portion of an inclined frame that is inclined so that the closing direction side is downward. Further, a braking means including an oil damper that brakes the sliding door when the sliding door is closed is attached to an upper portion of the upper side of the sliding door, and a pinion gear (gear) is attached to the braking means. Further, an opening braking rack is attached to the door bottom side portion of the inclined frame. When the sliding door is closed from a position close to the fully open state, the sliding door is braked, and the closing operation of the sliding door is performed slowly.

  According to this configuration, when the sliding door is opened to a position close to the fully open state (specifically, when the sliding door is opened to a position where the pinion gear meshes with the open braking rack), the hand is released from the sliding door. Even if the sliding door does not move immediately in the closing direction. In other words, since the sliding door is held in a state where it is temporarily opened and then self-closed, the sliding door can be used for a person who takes time to pass through the opening opened by the sliding door or a wheelchair passenger. This is convenient because it is difficult to hit.

  Further, in the sliding door device disclosed in Patent Document 2, a supplementary mechanism including a gear meshing with an oil damper and a catcher having a groove portion attached to the gear is provided on a door bottom side extension portion of the rail portion inclined in the closing direction. In addition, an engaging member that can be inserted into and removed from the groove portion of the catcher is attached to an upper part of the upper side of the sliding door. And by this structure, when the sliding door is opened to the position close | similar to a fully open state (specifically, when an engaging member engages with a supplementary mechanism), it brakes.

  Even with this configuration, when the sliding door is opened to a position close to the fully open state, even if the sliding door is released, the sliding door does not immediately move in the closing direction, so it passes through the opening opened by the sliding door. This is convenient for people who take time to do so and wheelchair passengers because it is difficult for the sliding doors to collide.

  That is, both Patent Document 1 and Patent Document 2 described above have a structure having a braking holding function for temporarily holding the sliding door in an open state. However, in the structures of these cited references 1 and 2, there is a problem that the braking function during the closing operation does not work unless the sliding door is opened to a position close to the fully open state. That is, in a state where the sliding door is opened to the midway position where the fully open state is not reached, the self-closing operation starts as soon as the hand is released, and in this case, it takes time to pass through the opening opened by the sliding door. It is inconvenient for those who take care of it and for wheelchair passengers.

  In the configuration of Patent Document 1, it is conceivable that the open brake rack is formed not only at the door bottom side portion of the inclined frame but also at a midway position in the opening and closing direction. In this case, the sliding door is located at the midway position. Even when it is opened, the closing operation is performed slowly. However, in this configuration, when the sliding door is opened to the fully opened position, the sliding door is braked over a long distance from the fully opened position to the midway position, which causes a problem that it takes a long time to close the sliding door.

  On the other hand, Patent Documents 3, 4 and the like disclose a sliding door device including an arbitrary position stop mechanism which is also called a so-called free stop mechanism. These sliding door devices have contact means and pressing means that come into contact with the rail part, and when the self-closing type sliding door is opened, when the sliding door is moved from the opening direction to the closing direction by releasing the hand, The contact means and the pressing means are in contact with the rail portion and stretched to prevent the sliding door from being closed at an arbitrary position. The sliding door device having such a configuration has an advantage that it can be stopped at an arbitrary position at the position where the sliding door is opened. However, in the sliding door device having such a configuration, when the sliding door that has been temporarily stopped is closed, an operation of closing the sliding door must be performed separately, which is troublesome.

JP 2002-70412 A JP-A-11-200701 JP-A-8-42230 Japanese Patent Laid-Open No. 2002-322852

  As described above, in the configurations of Patent Documents 1 and 2, since the braking function during the closing operation does not work unless the sliding door is opened to a position close to the fully opened state, the sliding door is opened to a midway position that does not reach the fully opened state. In the state, the closing operation starts as soon as the hand is released, which is inconvenient.

  On the other hand, in the configurations of Patent Documents 3 and 4, the sliding door can be kept open at an arbitrary position. However, when closing the sliding door, it is necessary to perform another closing operation, which is troublesome.

  The present invention solves the above-mentioned problem, and a sliding door device that functions as a braking function during a closing operation regardless of the position where the sliding door is opened, and that is automatically closed without performing a closing operation thereafter. It is intended to provide.

  In order to solve the above problems, a sliding door device according to the present invention includes a sliding door that can travel in a predetermined direction, a sliding door biasing means that biases the sliding door in a closing direction, and a traveling direction extending body that extends in the traveling direction of the sliding door. An arbitrary position stop mechanism that has a contact body that comes into contact and applies a force to stop the sliding door at an arbitrary position when the sliding door is switched from the opening direction to the closing direction to move. A brake holding mechanism for temporarily holding the sliding door in an open state by temporarily braking movement of the sliding door from a position where the sliding door is about to be stopped by the position stop mechanism; and the arbitrary position stopping mechanism; Interlocking means for interlocking with the brake holding mechanism is provided.

  Further, the interlocking means transmits the movement when the sliding door of the arbitrary position stop mechanism is moved in the opening direction to the brake holding mechanism, and from the state where the sliding door of the arbitrary position stop mechanism is opened and stopped. , The movement accompanying the movement of the sliding door in the closing direction is transmitted to the brake holding mechanism, and the braking holding mechanism moves in the closing direction from the state where the sliding door of the arbitrary position stop mechanism is opened and stopped. It is preferable to brake the movement associated with the movement.

  With the above configuration, when the hand is released after opening the sliding door, the arbitrary position stop mechanism applies a force to stop the sliding door at an arbitrary position, and the interlocking means interlocks the brake holding mechanism to close the sliding door. The sliding door is temporarily braked, and the sliding door is temporarily held in the open state. Thereafter, the braking operation is released and the sliding door is automatically closed. Accordingly, the sliding door is temporarily stopped at an arbitrary position regardless of the position where the sliding door is opened, and then the sliding door is automatically closed without performing the closing operation.

  Moreover, it is preferable that the traveling direction extension body which the contact body of the arbitrary position stop mechanism contacts is a rail portion on which a wheel attached to the sliding door travels. According to this configuration, separately from the rail portion, It is not necessary to provide the traveling direction extension body.

  The arbitrary position stop mechanism includes a swing support arm that swingably supports the contact body, and the brake holding mechanism brakes the rotation member and the rotation of the rotation member transmitted thereto. It is preferable that the swing support arm and the rotation member are engaged via the interlocking means.

  Further, the engaging position between the swing support arm and the rotating member may be adjustable via the interlocking means. In this case, by adjusting the engagement position, it is possible to adjust the time for stopping the sliding door in the opened state.

  Moreover, you may provide the contact body switching mechanism which switches the said contact body to the state separated from the said traveling direction extension body. According to this configuration, the contact body can be switched to a state separated from the traveling direction extending body so that the function of temporarily stopping the sliding door in the opened state can be switched.

  Also, a contact portion that contacts the arbitrary position stop mechanism when the sliding door is opened is provided, a stop state release biasing means is provided in the brake holding mechanism, and the arbitrary position stop mechanism contacts the contact portion. By contacting, the stop position canceling biasing means may be configured to store the force at which the arbitrary position stop mechanism switches to the posture when moving from the stop state of the sliding door to the closing direction. According to this configuration, the switching operation to the posture when moving the sliding door from the stop state to the closing direction is performed more favorably. In this case, a contact portion switching mechanism that switches the contact portion to a position that does not contact the arbitrary position stopping mechanism may be provided.

  According to the present invention, the sliding door has a contact body that contacts the traveling direction extending body extending in the traveling direction, and the posture is switched when the sliding door is switched from the opening direction to the closing direction to move the sliding door. An arbitrary position stop mechanism that applies a force to stop at an arbitrary position, and the arbitrary position stop mechanism temporarily brakes the movement of the sliding door from the position at which the sliding door has been stopped to open the sliding door. A sliding holding mechanism that temporarily holds the sliding door in a state; and interlocking means that interlocks the arbitrary position stopping mechanism and the braking holding mechanism, so that the sliding door can be temporarily moved to an arbitrary position regardless of the opened position. Will be automatically closed without the need for a closing operation, so it can be used for those who take time to pass through the opening opened by the sliding doors, wheelchair passengers, etc. Sliding door becomes difficult hit, safety is improved as well as a convenient. Moreover, since it is not necessary to separately perform the operation of closing the sliding door, this also saves time and is convenient.

  Moreover, when the rail part which the wheel attached to the said sliding door travels is used as the said traveling direction extension body which the contact body of the said arbitrary position stop mechanism contacts, a traveling direction extension body is provided separately from a rail part. Since it is not necessary, the manufacturing cost can be reduced as compared with the case where the traveling direction extending body is provided separately from the rail portion.

  In addition, the arbitrary position stopping mechanism has a swing support arm that swingably supports the contact body, and the brake holding mechanism transmits a rotating member and braking by transmitting the rotation of the rotating member. If the swing support arm and the rotating member are engaged via the interlocking means, the sliding door device can be manufactured relatively easily and inexpensively.

  Also, the engaging position between the swing support arm and the rotating member can be adjusted via the interlocking means so that the time for stopping with the sliding door opened can be adjusted with a relatively simple structure. it can.

  Further, when the sliding door is opened, an abutting portion that abuts on the arbitrary position stop mechanism is provided, and a stop state release urging means is provided on the brake holding mechanism, and the arbitrary position stop mechanism abuts on the abutting portion. Thus, if the arbitrary position stop mechanism is configured to store the force for switching from the sliding door stop state to the closing direction by the stop state release biasing means, the sliding door moves from the sliding door stop state to the closing direction. The switching operation to the posture when performing the operation is performed more favorably, and as a result, the reliability as the sliding door device is improved.

  A contact body switching mechanism for switching the contact body to a state separated from the traveling direction extending body, and a contact portion switching mechanism for switching the contact portion to a position not contacting the arbitrary position stop mechanism. Further, it is possible to switch so that the function of temporarily stopping the sliding door in the open state is not exhibited, and the convenience is further improved.

It is a front view of the sliding door apparatus which concerns on embodiment of this invention. (A) And (b) is the principal part top view and principal part front view of the sliding door apparatus. The principal part front view of the sliding door apparatus shows the case where the sliding door is in a fully closed state. (A)-(c) is the front view of the arbitrary position stop mechanism of the sliding door apparatus, a top view, and a side view. In the front view of the main part of the sliding door device, the contact body is switched to a state where the contact body is separated from the rail portion by the contact body switching mechanism, or the contact portion is switched to a position where it does not contact the arbitrary position stop mechanism by the contact portion switching mechanism. Shows the state. The principal part front view of the sliding door apparatus shows the case where the sliding door is in a fully closed state. The principal part front view of the sliding door apparatus has shown the state which opened the sliding door. It is the principal part front view of the sliding door apparatus, and has shown the state (state which released the hand from the sliding door) which has finished opening the sliding door. In the principal part front view of the sliding door apparatus, the state which the sliding door has stopped is shown. It is the principal part front view of the sliding door apparatus, and has shown the state which the sliding door is going to finish closing.

Hereinafter, a sliding door device according to an embodiment of the present invention will be described with reference to the drawings.
In FIG. 1 and the like, reference numeral 1 denotes an upward sliding sliding door, 2, 3, 4 are an upper frame, a door-end side frame and a door-side side frame that are fixed at predetermined positions. A lower frame is provided at a lower position outside the figure, and an opening 6 (formed from the upper frame 2, the door-end side frame 3, the door pocket 5, and the lower frame) can be opened and closed by the sliding door 1. ing.

  Wheels 9 and 10 are pivotally supported at the upper edge portion and the door bottom portion of the sliding door 1 via rolling brackets 7 and 8 extending upward. In addition, an inclined frame 11 having a substantially L-shaped cross section is fixed to the upper frame 2 in a posture in which the door end side is inclined slightly downward, and the wheels 9 and 10 roll on the rail portion 11a formed on the inclined frame 11. It is placed freely (rotatable). Therefore, it is set as the structure provided with the sliding door biasing means by which the closing operation of the sliding door 1 is automatically performed when the wheel 9 and 10 moves to the door tip side by the dead weight of the sliding door 1 on the inclined rail part 11a. ing.

  First, the main configuration of the present invention will be described. As shown in FIG. 1 and FIG. 2, a bracket 7 (also referred to as a door-end bracket) attached to a location close to the door-end of the sliding door 1 has a running of the sliding door 1. A contact body 21 that contacts a rail portion 11a as an example of a traveling direction extending body extending in the direction, and the posture is switched when the sliding door 1 is switched from the opening direction to the closing direction to move. An arbitrary position stop mechanism 20 that applies a force to stop 1 at an arbitrary position, and temporarily braking the movement of the sliding door 1 from the position at which the sliding door 1 is about to be stopped by the arbitrary position stop mechanism 20; A brake holding mechanism 30 that temporarily holds the sliding door 1 in an open state and interlocking means 40 that links the arbitrary position stopping mechanism 20 and the brake holding mechanism 30 are attached. The arbitrary position stopping mechanism 20, the brake holding mechanism 30, the interlocking means 40, and the like can be temporarily stopped in an open state at an arbitrary position when the hand is released with the sliding door 1 opened. .

Each mechanism will be described in detail below.
As shown in FIGS. 2 to 4 and the like, the arbitrary position stopping mechanism 20 has a swing support arm 22 that supports the contact body 21 so as to be swingable in a posture capable of contacting the rail portion 11a. As shown in FIG. 4, the swing support arm 22 has two stepped portions 22a and 22b bent in the depth direction, and extends to the left and right in an inclined state as shown in FIG. For example, it is formed of a metal plate or the like. At the center of the swing support arm 22, there is an arm rotation shaft 23 fixed to the door end side end portion of the door close bracket 7 so as to protrude to the front side (the lower side of the paper surface in FIG. 2A). The swing support arm 22 has a door end side end and a door butt side end swingable in a substantially vertical direction around the arm rotation shaft 23 (in detail, The support arm 22 is supported on a vertical plane on which the support arm 22 is disposed.

  A contact body rotating shaft 24 to which the contact body 21 is rotatably attached is attached to the door end side end portion 22c (see FIG. 4) of the swing support arm 22 so as to protrude forward. The contact body 21 has a substantially egg shape when viewed from the front and a contact main body portion 21a made of an elastic material such as a rubber material in which a long hole extending in the vertical direction is formed at the center in the width direction, and the contact main body portion 21a. A contact body biasing spring 21b formed of a coil spring that is inserted into the elongated hole and biases the contact body 21a substantially downward, and a weight 21c attached to the lower part of the contact body 21a via a mounting shaft 21d. Become. The contact body 21 is attached so as to be rotatable about the contact body rotating shaft 24 and movable in the length direction of the long hole against the biasing force of the contact body biasing spring 21b. . The lower surface of the contact body 21a of the contact body 21 is in a state where it protrudes to the outer diameter side slightly from the weight 21c and is exposed, and is formed with fine irregularities and the like that increase the frictional force, which is good for the rail portion 11a. It is comprised so that it may contact.

  As shown in FIG. 5, by rotating the contact body 21 in the direction a as shown in FIG. 5, the contact body 21 is moved to the rail section 11a at a position slightly closer to the door bottom than the door end side end 22c of the swing support arm 22. A contact body locking pin 26 that can be locked without contact is projected, and the contact body 21 is driven by the contact body locking pin 26 and a contact body rotating shaft 24 that rotatably supports the contact body 21. A contact body switching mechanism for switching from the rail portion 11a as the direction extending body to the separated state is configured.

  An attachment plate portion for attaching an interlocking plate 42 projecting so that the interlocking pin 41 extends rearward (back side), which forms a part of the interlocking device 40, at the end of the swing support arm 22 on the door bottom side. 22d is formed. Note that reference numerals 43 and 44 in FIG. 4 denote an interlocking clamping plate and a clamping screw for clamping the mounting plate portion 22d of the swing support arm 22 in order to attach the interlocking plate 42. A pin insertion hole 22 e for inserting the interlocking pin 41 is formed in the mounting plate portion 22 d of the swing support arm 22, and this pin insertion hole 22 e is long in the longitudinal direction of the swing support arm 22. It has a long hole shape, and the position of the position interlocking pin 41 (the mounting position of the interlocking plate 42) can be adjusted in the longitudinal direction of the swing support arm 22.

  As shown in FIG. 3 and the like, the brake holding mechanism 30 includes a rotating member 31 having a fan-shaped tooth portion 31a, and a viscous damper (an example of a braking device that transmits the rotation of the rotating member 31 to brake). In this embodiment, the oil damper 32 is formed. The rotating member 31 is attached so as to be rotatable in a vertical plane by a rotating member support shaft 33 erected on the front side from the center portion of the door-end bracket 7, and is opposite to the tooth portion 31 a (the rotation). On the door end side of the moving member 31, a groove portion 45 through which the interlocking pin 41 is inserted and engaged is formed. The arbitrary position stopping mechanism 20 and the brake holding mechanism 30 are interlocked with each other by engaging the interlocking pin 41 of the interlocking plate 42 attached to the swing support arm 22 with the groove 45 of the rotating member 31. Has been. In other words, in this embodiment, there are interlocking means for interlocking the arbitrary position stop mechanism 20, the brake holding mechanism 30, the arbitrary position stop mechanism 20, and the brake holding mechanism 30 with the interlocking pin 41 and the groove portion 45 of the rotating member 31. It is configured.

  The rotating member support shaft 33 is externally provided with a stop state releasing urging spring 34 as a suspending state releasing urging means that urges the rotating member 31 in a direction rotating in the b direction. . Reference numeral 31b denotes an engaging protrusion formed on the rotating member 31 and engaged with one end of the stop state release biasing spring 34. The other end of the stop state release biasing spring 34 is a door It is locked to a protrusion 7a provided on the front bracket 7 (or a part fixed to the door bracket 7). A driven gear 32 a that always meshes with the tooth portion 31 a of the rotating member 31 is attached to the viscous damper 32. The viscous damper 32 brakes only when the driven gear 32a rotates in the c direction (the rotating member 31 rotates in the b direction). In addition, the frame etc. which assemble | attach the rotation member 31 and the viscous damper 32 of the brake holding | maintenance mechanism 30 may be provided, and you may comprise so that it may assemble | attach to the door end bracket 7 via this frame.

  Further, as shown in FIG. 3 and the like, in this embodiment, when the sliding door 1 is opened, it contacts the arbitrary position stop mechanism 20 (more specifically, the swing support arm 22 of the arbitrary position stop mechanism 20). A contact rod 51 as a contact portion is provided. In this embodiment, a mounting bracket 52 is attached to a location near the door tip in the upper frame 2, and a contact rod 51 as a contact portion is provided around a pivot shaft 52 a formed on the mounting bracket 52. The contact part support plate 53 is rotatably attached. The mounting bracket 52 is also provided with a restriction projection 52b, and a restriction receiving portion 53a (see FIG. 5) that can be brought into contact with the restriction projection 52b from the door end side at the lower end portion of the contact portion support plate 53. 6 and FIG. 7) is formed, and when the sliding door 1 is opened from the fully closed state, the contact rod 51 contacts the swing support arm 22 of the arbitrary position stopping mechanism 20, and the contact body 21 is The door end side portion of the attached swing support arm 22 is swung downward to a position where the contact body 21 can sufficiently contact the rail portion 11a.

  When the sliding door 1 is closed to a position close to the fully closed state, the contact rod 51 contacts the door end side end 22c of the swing support arm 22, but the contact rod 51 rotates in this direction. Since it is free to move (is not in contact with the restricting protrusion 52b and is not restricted), the contact rod 51 rotates so as to retract upward together with the contact support plate 53, and the swing support arm 22 Hardly swings.

  Further, a part of the door side portion of the swing support arm 22 is provided with a retracting posture holding projection (this embodiment) that maintains a contact rod 51 as a contact portion at a position where it does not contact the swing support arm 22. In this embodiment, a screw head 54 is provided, and as shown in FIG. 5, the contact rod 51 can be rotated in the d direction to be locked to the retracting posture holding projection 54. That is, in this embodiment, the contact rod 51 as the contact portion is brought into contact with the arbitrary position stop mechanism 20 by the retraction posture holding projection 54 and the pivot shaft 52a that rotatably supports the contact rod 51. An abutting portion switching mechanism for switching to a non-contact position is configured.

  Further, in this embodiment, an auxiliary braking device 60 is provided that brakes when the sliding door 1 is closed to the fully closed state, and also brakes when the sliding door 1 is opened to near the fully open state. The auxiliary braking device 60 has the same structure as the braking equipment disclosed in Japanese Patent Publication No. 2730871, and a detailed description thereof will be omitted. However, the auxiliary braking device 60 is composed of a hydraulic damper attached to a portion near the door bottom of the door end bracket 7. A device main body 61 and a gear (pinion) 62 attached to the brake device main body 61, a closed braking rack 63 attached to a portion in the vicinity of the rail portion 11 a in a door tip side portion of the inclined frame 11, and a door in the inclined frame 11 An open braking rack 64 is provided so as to face the vicinity of the rail portion 11a in the butt side portion from above. When the sliding door 1 is closed to the fully closed state, the gear (pinion) 62 is engaged with the closing braking rack 63 for braking, and the sliding door 1 is prevented from strongly hitting the door end side frame 3. When the sliding door 1 is opened to the fully open state, the gear (pinion) 62 is engaged with the open braking rack 64 for braking, and the sliding door 1 is prevented from strongly hitting the door-end side frame 4.

  Moreover, in this embodiment, the fully open holding stopper 70 for maintaining the sliding door 1 in the fully open state is provided, and when the sliding door 1 is in the fully open state, the sliding door 1 is attached to a location near the door bottom. An engaging body 71 attached to a bracket 8 (also referred to as a door butt bracket) 8 is fitted to maintain the sliding door 1 in a fully open state. However, the auxiliary braking device 60, the fully open holding stopper 70, and the like are not substantially directly related to the present invention, and may be omitted.

  In the above configuration, when the sliding door 1 is in the fully closed state, as shown in FIGS. 3 and 6, the swing support arm 22 of the arbitrary position stopping mechanism 20 is inclined relatively upward on the door tip side. The contact body 21 has a posture in which the center line X becomes vertical by the weight 21c. In addition, since the rail part 11a on which the wheels 9 and 10 travel is not provided at a position where the contact body 21 is located in this state, but only at a door-side side than this, the contact body 21 is provided. Is in a state of floating in the air without contacting the rail portion 11a (the posture in which the weight 21c of the contact body 21 is positioned below). At this time, the contact rod 51 may or may not be in contact with the swing support arm 22, and in this state, the swing support arm 22 is hardly pressed downward.

  When the sliding door 1 is opened from the fully closed state (see FIGS. 1 to 3), first, as shown in FIG. 6, the upper side of the door support side portion of the swing support arm 22 comes into contact with the contact rod 51 and swings. The dynamic support arm 22 swings so that the door end side is downward and the door bottom side is upward. Then, when the contact body 21 moves to a place where the rail portion 11a is present, the lower door bottom side portion of the contact body 21 is relatively opened from the rail portion 11a with the opening operation of the sliding door 1 as shown in FIG. In order to move while receiving force in the direction toward the front side, the contact body 21 has a posture in which the lower contact portion is inclined toward the door end side.

  As the swing support arm 22 swings in the e direction, the rotating member 31 rotates in the f direction, and the gear 32a of the viscous damper 32 that meshes with the rotating member 31 rotates in the g direction. At this time, the viscous damper 32 is rotated without performing a braking operation. Further, as the rotating member 31 rotates in the f direction, the stop state releasing biasing spring 34 is compressed in the winding direction, and the rotating member 31 is applied in the anti-f direction by the stop state releasing biasing spring 34. The oscillating support arm 22 of the arbitrary position stopping mechanism 20 abuts against the abutting rod 51 as the abutting portion, so that the arbitrary position stopping mechanism 20 is oscillated by the urging spring 34 for releasing the stop state. The dynamic support arm 22 stores a force for switching to the posture when moving in the closing direction from the stopped state of the sliding door 1 as described later).

  Thereafter, when the sliding door 1 is stopped from being opened and the hand is released from the sliding door 1, the sliding door 1 tries to move in the closing direction due to its weight (self-closing operation), and accordingly, As shown in FIG. 8, the contact body 21 has its upper part (of the contact body 21) and the contact body rotating shaft 24 rotated in the h direction around the contact point Z with the rail portion 11 a, and the swing support arm A force is applied so that 22 rotates in the i direction. The rotating member 31 tends to move in the j direction (counter f direction) by the urging force of the stop state releasing urging spring 34. However, rotation in the k direction (counter g direction) is braked by the viscous damper 32 meshed with the rotating member 31 by the gear 32a, and the sliding door 1 is temporarily braked and stopped.

  Thereafter, the gear 32a of the viscous damper 32 gradually rotates in the k direction against the braking operation, and accordingly, the rotating member 31 rotates in the j direction and the swing support arm 22 in the i direction. When it rotates, the contact body 21 is in a nearly vertical posture and cannot be stretched by the contact body 21, and is further rotated in the h direction by the frictional force with the rail portion 11 a accompanying the closing operation of the sliding door 1. The sliding door 1 performs a self-closing operation.

  After that, when the sliding door 1 is closed until the fully closed state is approached, as shown in FIG. 10, the contact rod 51 comes into contact with the door end side end portion 22c of the swing support arm 22, but as described above. Thus, since the contact rod 51 is rotatable in this direction (the state where the contact rod 51 is not in contact with the restriction protrusion 52b and is not restricted), the contact rod 51 is centered on the pivot shaft 52a. The contact support plate 53 is rotated in the m direction so as to retreat upward, and the swing support arm 22 hardly swings.

  With the above configuration, when the hand is released after opening the sliding door 1, the arbitrary position stopping mechanism 20 applies a force to stop the sliding door 1 at an arbitrary position, and the interlocking means 40 interlocks the brake holding mechanism 30. Thus, the sliding door 1 is temporarily braked to move in the closing direction, and the sliding door 1 is temporarily held in the open state. Thereafter, the braking operation is released and the sliding door is automatically closed. Thus, the sliding door 1 is temporarily stopped at an arbitrary position regardless of the position where the sliding door 1 is opened, and then the sliding door 1 is automatically closed without performing the closing operation.

  Therefore, even for a person who takes time when passing through the opening 6 opened by the sliding door 1 or a wheelchair passenger, the sliding door 1 becomes difficult to collide, which is convenient and improves safety. Moreover, since it is not necessary to perform the operation | movement which closes the sliding door 1 separately, this can also save an effort and is convenient.

  In this embodiment, the interlocking plate 42 is attached to the end of the swing support arm 22 on the door bottom side, and the interlocking pin 41 of the interlocking plate 42 and the groove 45 of the rotating member 31 are engaged. The interlocking means 40 is configured. Then, the interlocking means 40 transmits the movement when the sliding door 1 of the arbitrary position stopping mechanism 20 is moved in the opening direction to the brake holding mechanism 30, and the sliding door 1 of the arbitrary position stopping mechanism 20 is opened and stopped. From the state, the movement accompanying the movement of the sliding door 1 in the closing direction is transmitted to the brake holding mechanism 30. Further, the brake holding mechanism 30 brakes the movement associated with the sliding door 1 moving in the closing direction from the state where the sliding door 1 of the arbitrary position stopping mechanism 20 is opened and stopped. That is, by providing the interlocking means 40 for interlocking the arbitrary position stop mechanism 20 and the brake holding mechanism 30, a relatively simple configuration (in this embodiment, the member (swing support arm 22) of the arbitrary position stop mechanism 20) The brake holding mechanism 30 (rotating member 31) is engaged and interlocked via the interlocking pin 41 of the interlocking means 40 and the like, and the braking function during the closing operation works regardless of the opened position. Moreover, after that, it is possible to realize a sliding door device that is automatically closed without performing a closing operation.

  In this embodiment, the position of the interlocking pin 41 as the interlocking means 40 is adjusted along the pin insertion hole 22e of the swinging support arm 22 so that the interlocking pin 41 assembled on the swinging support arm 22 side. And the position which engages with the groove part 45 of the rotation member 31 can be adjusted. As a result, since the force acting on the rotating member 31 changes due to the change in the dimension from the central portion (the rotating member support shaft 33) acting on the rotating member 31, the force acting on the viscous damper 32 at the time of braking is changed. As a result, the time for stopping the sliding door 1 in the opened state can be adjusted with a relatively simple structure.

  In addition, by using the rail portion 11a on which the wheels 9 and 10 attached to the sliding door 1 travel as the travel direction extending body that the contact body 20 of the arbitrary position stopping mechanism 20 contacts, the travel is performed separately from the rail portion 11a. Since it is not necessary to provide the direction extending body, the manufacturing cost can be reduced as compared with the case where the traveling direction extending body is provided separately from the rail portion 11a. However, the present invention is not limited to this, and a traveling direction extending body in which the contact body 20 contacts separately on the inclined frame 11 or a traveling direction extending body in which the contact body 20 contacts separately along the upper frame 2 is provided. It may be provided.

  According to the above configuration, the arbitrary position stopping mechanism 20 includes the swing support arm 22 that swingably supports the contact body 21, and the brake holding mechanism 30 includes the rotating member 31 and the rotating member. And a braking device (viscous damper 32 in this embodiment) that rotates when the rotation of 31 is transmitted, and the swing support arm 22 and the rotating member 31 are engaged via the interlocking means 40. With the configuration, there is an advantage that the sliding door device can be realized with a relatively simple configuration and can be manufactured at low cost.

  However, the present invention is not limited to the configuration of the above-described embodiment. By combining the mechanism that stops the sliding door 1 at an arbitrary position and the brake holding mechanism that can be temporarily stopped, the other configurations can be used. Even so, it is possible to realize a structure in which the sliding door 1 is temporarily stopped at an arbitrary position, and then the sliding door 1 is automatically closed without performing a closing operation. In the above embodiment, the rotating member 31 has the tooth portion 31a and meshes with the viscous damper 32 as a braking device. However, the rotating member 31 is engaged with the viscous damper 32 by friction, protrusions, or the like. The structure which interlock | cooperates together may be sufficient. In the above-described embodiment, the case where the interlocking unit 40 is engaged and interlocked with the interlocking plate 41 via the interlocking pin 41 has been described. However, as the interlocking unit, friction, a connecting link mechanism, or the like is used. May be. Further, as a braking device, instead of using the viscous damper 32 using oil, a damper using air (rotary type or direct acting type) or a braking means structured to brake by contact friction force or magnetism may be used. Good.

  Further, in the above configuration, the contact rod 51 is provided as a contact portion that contacts the swing support arm 22 of the arbitrary position stop mechanism 20 when the sliding door 1 is opened, and the brake holding mechanism 30 is provided with a stop state release attachment. The biasing spring 34 is provided, and the swinging support arm 22 of the arbitrary position stopping mechanism 20 is in contact with the contact rod 51, so that the arbitrary position stopping mechanism 20 is in the stopped state of the sliding door 1 by the stop state releasing biasing spring 34. It is comprised so that the force which switches to the attitude | position at the time of moving to a closing direction may be stored. According to this configuration, there is an advantage that the switching operation to the posture when the sliding door 1 is moved from the stop state to the closing direction is performed more favorably and the reliability as the sliding door device is improved.

  However, the contact rod 51 as the contact portion and the stop state release biasing spring 34 are not necessarily provided. For example, the biasing force of the biasing means for biasing the sliding door in the closing direction is increased. By slightly reducing the weight of the contact body 21 or by slightly reducing the force (such as a stretching force) that makes contact with the travel direction extension body such as the rail portion 11a by the contact body 21 As described above, it is possible to realize a structure in which the sliding door 1 is temporarily stopped at an arbitrary position as described above, and then the sliding door 1 is automatically closed without performing the closing operation. .

  Further, in the above configuration, the contact body switching mechanism for switching the contact body 21 from the traveling direction extending body such as the rail portion 11 a to the separated state, or the contact rod 51 as the contact section is swung by the arbitrary position stop mechanism 20. A contact portion switching mechanism for switching to a position where it does not contact the support arm 22 is provided. Thereby, it is extremely possible to perform switching so that the function of temporarily stopping the sliding door 1 in the open state is not exhibited by a simple operation of rotating the contact body 21 or the contact rod 51. It can be performed easily and the convenience is further improved. However, although it is preferable to provide these contact body switching mechanism and contact part switching mechanism, it is needless to say that it is not necessary to provide them.

  Moreover, in the said structure, while the sliding door 1 is braked when it is closed to a fully closed state, the auxiliary | assistant brake device 60 which brakes also when it opens to near full open state is provided. Thereby, when the sliding door 1 is closed to the fully closed state, it is prevented from strongly hitting the door end side frame 3, and when the sliding door 1 is opened to the fully opened state, it strongly hits the door bottom side frame 4. Is extremely convenient. However, the present invention is not limited to this, and the auxiliary braking device 60 can be omitted.

  Moreover, in the said embodiment, the wheel attached to the sliding door 1 on the rail part 11a of the inclination flame | frame 11 in which the door tip side inclines a little downwards as a sliding door biasing means in which the closing operation of the sliding door 1 is performed automatically. The case where the sliding door 1 is urged toward the door end side by the weight of the sliding door 1 by placing the rollers 9 and 10 so as to be rotatable (rotatable) has been described. However, the present invention is not limited to this configuration. A mainspring spring or a coil spring that is biased in the closing direction is provided and the spring is automatically closed by this biasing force, or a weight is provided depending on the weight of the weight. Of course, the present invention can be similarly applied to a sliding door device that pulls the sliding door in the closing direction by the urging force.

1 Sliding door 6 Opening wheel 9, 10
DESCRIPTION OF SYMBOLS 11 Inclination frame 11a Rail part 20 Arbitrary position stop mechanism 21 Contact body 22 Swing support arm 23 Arm rotating shaft 24 Contact body rotating shaft 30 Brake holding mechanism 31 Rotating member 32 Viscous damper (braking device)
33 Rotating member support shaft 34 Stop state release biasing spring (stop state release biasing means)
40 Interlocking means 41 Interlocking pin 42 Interlocking plate 45 Groove 51 Contact rod (contact portion)
54 Retraction posture holding projection 60 Auxiliary braking device

Claims (8)

A sliding door that can run freely in a predetermined direction;
Sliding door biasing means for biasing the sliding door in the closing direction;
It has a contact body that contacts the traveling direction extension body extending in the traveling direction of the sliding door, and when the sliding door is switched from the opening direction to the closing direction, the posture is switched to stop the sliding door at an arbitrary position. An arbitrary position stop mechanism that applies force to
A brake holding mechanism for temporarily braking the movement of the sliding door in a closing direction from the position at which the arbitrary position stopping mechanism is stopped, and temporarily holding the sliding door in an open state;
Interlocking means for interlocking the arbitrary position stop mechanism and the brake holding mechanism;
A sliding door device characterized by comprising: The interlocking means transmits the movement when the sliding door of the arbitrary position stop mechanism is moved in the opening direction to the brake holding mechanism, and from the state where the sliding door of the arbitrary position stop mechanism is opened and stopped, Transmitting the movement accompanying the movement in the closing direction to the brake holding mechanism,
2. The sliding door device according to claim 1, wherein the brake holding mechanism brakes a movement associated with the sliding door moving in the closing direction from a state in which the sliding door of the arbitrary position stopping mechanism is opened and stopped. 3. .   3. The sliding door device according to claim 1, wherein the traveling direction extending body that contacts the contact body of the arbitrary position stopping mechanism is a rail portion on which a wheel attached to the sliding door travels. The arbitrary position stop mechanism has a swing support arm that swingably supports the contact body,
The brake holding mechanism includes a rotating member and a braking device that transmits the rotation of the rotating member and brakes it.
The sliding door device according to any one of claims 1 to 3, wherein the swing support arm and the rotation member are engaged via the interlocking means.   The sliding door device according to claim 4, wherein an engagement position between the swing support arm and the rotation member is adjustable via the interlocking means.   The sliding door device according to any one of claims 1 to 5, further comprising a contact body switching mechanism that switches the contact body to a state separated from the traveling direction extending body. When the sliding door is opened, a contact portion that contacts the arbitrary position stop mechanism is provided,
The brake holding mechanism is provided with a stop state releasing urging means,
When the arbitrary position stop mechanism comes into contact with the contact portion, the stop state release biasing means causes the arbitrary position stop mechanism to switch to a posture when moving from the stop state of the sliding door to the closing direction. The sliding door device according to claim 1, wherein the sliding door device is configured to store. The sliding door device according to claim 7, further comprising a contact portion switching mechanism that switches the contact portion to a position that does not contact the arbitrary position stop mechanism.

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