JP5726556B2 - Opening and closing body closing device - Google Patents

Description

  The present invention relates to an opening / closing body closing device for forcibly closing an opening / closing body such as a sliding door or a drawer.

  2. Description of the Related Art Conventionally, an opening / closing body closing device is known as a device that forcibly closes an opening / closing body such as a sliding door. The opening / closing body closing device includes, for example, a member to be captured attached to the sliding door rail side for guiding the sliding door, and a capturing / retracting mechanism attached to the sliding door side.

  The capturing / retracting mechanism includes a capturing member configured to be rotatable about a connecting shaft, and the capturing member captures or cancels the capture of the protruding captured member at a predetermined rotated position. . The capture pull-in mechanism includes a spring for pulling the sliding door in the closing direction and a damper for buffering the spring force.

  In the state where the capturing member does not capture the member to be captured, the internal force of the capturing / retracting mechanism does not act (the sliding door is not closed). On the other hand, in a state where the capturing member captures the captured member, the spring force acts to draw the sliding door in the closing direction.

  As a result, when the sliding door is closed, the opening / closing body closing device captures the member to be captured by the capturing member of the capturing / retracting mechanism so that the sliding door is forcibly guided to the closed position, and the sliding door is loosened by the damper. It comes to close (see, for example, Patent Documents 1 and 2).

JP 2009-191469 A JP 2010-43472 A

  In the above-described opening / closing body closing device, when the sliding door travels on the sliding door rail, an operation in which the captured member and the capturing member of the capturing / retracting mechanism are engaged (closed) or disengaged (opened) at a predetermined position. Arise. That is, the capture member is rotated by the opening / closing force of the sliding door at the predetermined position to capture the captured member. The speed at which the capturing member rotates is substantially the same as the speed at which the sliding door is closed at the predetermined position. For this reason, when it is attempted to close the sliding door vigorously at the predetermined position, the capturing member and the captured member are engaged vigorously, and an engagement sound is generated. This engagement sound may be harshly heard particularly when an opening / closing body closing device is installed in a home room or the like.

  The present invention has been made in view of the above-described circumstances, and provides an opening / closing body closing device that can further reduce the engagement sound generated when the captured member and the capturing member of the capturing and retracting mechanism are captured. belongs to.

In order to solve the above-described problem, an opening / closing body closing device of the present invention includes a member to be captured attached to either the opening / closing body or a fixing member that guides the opening / closing body to be movable, and the opening / closing body or the fixing member. A capture member attached to the other, for capturing the captured member, and the capture member by being pressed against the captured member by an opening / closing force that moves the opening / closing body along the fixed member A capture pull-in mechanism having an abutment block that captures the captured member, and a first force that urges the opening / closing body in a direction to forcibly close the captured member while capturing the captured member. a closing member closing device provided in the elastic body, wherein the capture retraction mechanism, the capture member by the opening and closing force for moving along the closing member to the fixed member and the abutment block The includes a link mechanism for sliding, said in capturing the capturing member, the abutment block is arranged to move in a direction to be pressed against the object capturing member, the capturing member, the person When the contact block comes into contact with and is pressed against the member to be captured, the block moves in a direction approaching the member to be captured, and the member to be captured is captured along with the contact block at the front and rear positions in the opening and closing direction of the closing body. It is comprised so that it may do.

  Further, the capturing member may move at a speed slower than a speed at which the opening / closing body is opened / closed.

  The link mechanism further includes a link pin attached to the capture member, a guide hole through which the link pin is inserted, and an internal block that moves the capture member up and down along the guide hole; The contact block is formed with an inclined hole through which the link pin is inserted, and the capture member is moved up and down along the inclined hole when pressed by the captured member. In addition to being moved in the direction, it may be moved in the front-rear direction relative to the inner block along the inclined hole.

  Furthermore, the link mechanism urges the abutment block forward between the inclusion block and the abutment block when the capture is released, and promotes the movement of the link mechanism when the capture is released. The elastic body may be provided.

  The capture pull-in mechanism may include a lock mechanism that holds the biasing force of the first elastic body when the capture member is slid to release the capture.

  The lock mechanism further includes a guide hole through which the link pin is inserted. The guide hole guides the link pin in a direction in which the first elastic body is urged, and the link. It is also possible to configure the pin with a vertically elongated hole that guides the pin in a direction different from the direction in which the first elastic body is urged.

In the opening / closing body closing device according to the present invention, the trapped member attached to either the opening / closing body or the fixing member for movably guiding the opening / closing body, and the other of the opening / closing body or the fixing member, A capturing member for capturing the captured member, and an opening / closing force that moves the open / close body along the fixed member, and is pressed against the captured member to move the capturing member to move the captured member. A capture pull-in mechanism having an abutment block that captures the capture member; and a first elastic body that urges the opening / closing body in a direction to forcibly close the capture member in a state where the capture member captures the captured member. The capture pull-in mechanism is configured to move in a direction in which the contact block is pressed against the captured member when capturing the captured member. Even well closed, it is possible to buffer the momentum abutting on the trapping member. Thereby, the engagement sound (collision sound) when the contact block and the captured member come into contact with each other at the time of capture can be suppressed, and the engagement sound can be further reduced.
In addition, since the capturing member moves at a speed slower than the speed at which the opening / closing body is opened and closed, the momentum at which the capturing member moves can be relaxed and the capturing member can be moved slowly. Thereby, when the capture member moves to the upper limit at the time of capture, the collision sound between the link pin and the upper end portion of the guide hole can be suppressed, and the operation sound can be further reduced.

It is a front view of the upper part of the sliding door provided with the opening-and-closing body closing device which concerns on this invention, Comprising: (a) shows the time of opening of an opening-closing body, (b) at the time of apparatus operation, (c) shows the time of closing of an opening-closing body. It is an enlarged view of the capture drawing-in mechanism of Fig.1 (a), (a) is a top view, (b) is sectional drawing in the AA line, (c) is a front view. It is an enlarged view of the capture drawing-in mechanism of FIG.1 (b), Comprising: (a) is a top view, (b) is sectional drawing in the BB line, (c) is a front view. It is an enlarged view of the capture drawing-in mechanism of FIG.1 (c), (a) is a top view, (b) is sectional drawing in CC line, (c) is a front view. FIG. 2 is a perspective view of the capturing and retracting mechanism of FIG. FIG. 2 is a perspective view of the capturing and retracting mechanism of FIG. It is a disassembled perspective view of the capture drawing-in mechanism of FIG. It is the disassembled perspective view which looked at FIG. 7 from diagonally upper right. It is an enlarged view of the state which decomposed | disassembled the catch part, Comprising: (a) is an enlarged view of the D section of FIG. 7, (b) is an enlarged view of the E section of FIG. It is a disassembled perspective view which expands and shows the attachment part of the hanging part and drawing-in part which are shown in FIG. It is the enlarged view of the state which assembled the catch part, Comprising: (a) is the F section enlarged view of FIG.2 (b), (b) is the G section enlarged view of FIG.3 (b).

  Hereinafter, the opening-closing body closing device 10 which concerns on embodiment of this invention is demonstrated in detail using drawing. In addition, this Embodiment demonstrates what used the opening-closing body closing apparatus 10 for a sliding door apparatus.

  FIGS. 1A, 1B, and 1C are front views of the sliding door device and show a state when the sliding door is opened and closed. 2 to 4 are enlarged views of the capture / retraction mechanism 20 shown in FIG. 1. FIG. 2 corresponds to the state of FIG. 1 (a), FIG. 3 shows FIG. 1 (b), and FIG. This corresponds to the state of FIG. 2 to 4, (a) is a plan view of the capture pull-in mechanism 20, (b) is a cross-sectional view taken along line AA (BB, CC), and (c) is a front view. is there.

  The sliding door device shown in FIG. 1 includes a guide rail 1 extending along the upper edge of an opening of a building, and a sliding door 2 (opening / closing body) that opens and closes the opening by moving along the guide rail 1. The opening / closing body closing device 10 guides the sliding door 2 to the closed position while braking when the sliding door 2 is closed.

  The opening / closing body closing device 10 can travel along the lateral direction of the paper surface of FIG. 1 on the captured member 11 fixedly provided at a predetermined position near the door stop 3 of the guide rail 1 and the guide rail 1. And a capturing / retracting mechanism 20.

As shown in FIG. 1, the captured member 11 is formed in a protruding shape having a protruding portion 11 a protruding downward.
On the other hand, the capture pull-in mechanism 20 is attached to the inside of the guide rail 1 so as to be movable. More specifically, the capture pull-in mechanism 20 is provided with guide rollers 21 on the front side and the rear side thereof, and can be freely moved in the longitudinal direction of the guide rail 1 by the guide rollers 21. ing.
In addition, the upper end corner of the sliding door 2 (the upper left corner of the drawing) is attached to the capture pull-in mechanism 20 (specifically, a hanging portion 300 of the capture pull-in mechanism 20 described later). As a result, when a force is applied to the sliding door 2 in the opening / closing direction, the guide roller 21 of the capture pull-in mechanism 20 rolls on the guide rail 1 and the sliding door 2 opens and closes.

  The catching / retracting mechanism 20 is provided with a catch portion 100 (see FIGS. 2 to 4), which will be described in detail later, and this catch portion 100 catches the protrusion 11a of the member 11 to be caught.

As shown in FIGS. 1A and 2B, the capture pull-in mechanism 20 is in a position where the projection 11 a of the captured member 11 is not captured when the sliding door 2 is open. That is, in this state, the capture / retraction mechanism 20 is not functioning and is in a standby state.
When the sliding door 2 is moved to the left side from this standby state, the capturing / retracting mechanism 20 captures the captured member 11 when the sliding door 2 is closed. Moreover, the lock | rock of the catch part 100 mentioned above is cancelled | released (release state).
In this released state, the capture pull-in mechanism 20 acts to pull the captured member 11 to be captured toward the sliding door 2 side (right side in the example of FIG. 1). Thereby, as shown in FIG.1 (b) and FIG.3 (b), the sliding door 2 forcibly moves to the direction (left side in the example of FIG. 1) to close relatively (moving state). And as shown in FIG.1 (c) and FIG.4 (b), the sliding door 2 comes to be completely closed (closed state).

FIG. 5 is a perspective view of the capturing / retracting mechanism 20 in the state shown in FIG. 2 (standby state) as a single unit, as viewed obliquely from the upper left. FIG. 6 is a perspective view of the capturing / retracting mechanism 20 in the state (closed state) of FIG. 7 is an exploded perspective view of the capture / retraction mechanism 20 of FIG. 6, FIG. 8 is an exploded perspective view of the capture / retraction mechanism 20 of FIG. 7 viewed from the upper right, and FIG. 9 (a) is a portion D of FIG. FIG. 9B is an enlarged view of a portion E in FIG. Further, FIG. 10 is an exploded perspective view showing an enlarged attachment portion between the hanging portion and the drawing portion shown in FIG.
In addition, the front-back direction used by the following description says the direction which opens and closes the sliding door 2, and makes the front end 2b side. The up and down and left and right directions are directions viewed from the side of the butt 2b.

  As shown in FIGS. 5 to 8, the catching / retracting mechanism 20 is configured to catch the protrusion 11 a of the member to be captured 11 and to pull the catch 100 along the extending direction of the guide rail 1. The pull-in part 200 and the hanging part 300 to which the sliding door 2 is attached in a suspended manner are provided.

  As shown in FIGS. 2 to 4, 7, 8, and particularly FIG. 9, the catch portion 100 is configured by a link mechanism that operates according to the position of a link pin 140 described later. More specifically, as shown in FIGS. 7 to 9, the catch portion 100 has an abutment block 110 that abuts the protrusion 11 a at a predetermined position, and a vertical direction for capturing the protrusion 11 a of the captured member 11. The trapping plate 120 that moves to the inner side, the abutment block 110 that includes the trapping plate 120 and the inclusion block 130 that moves as a whole, and the abutment block 110, the catchment plate 120, and the inclusion block 130 are linked mechanisms. And link pins 140 for operating as described above.

  As shown in FIGS. 7 and 8, particularly FIGS. 9A and 9B, the abutment block 110 includes a main body 111 formed in a substantially rectangular parallelepiped shape, and a rear oblique upper side of the main body 111. The receiving portion 112 is formed in a protruding manner, and the upper portion thereof protrudes upward from the upper surface of the main body portion 111.

  The main body 111 has a hollow inside, and this hollow is formed so as to penetrate vertically. The capture plate 120 is inserted and assembled into the cavity from the lower opening. In addition, the main body 111 is formed with an inclined hole 111a extending from the upper left side to the lower right side as viewed from the front. The inclined hole 111a is formed so as to penetrate in the left-right direction of the main body 111, and the link pin 140 is inserted when the catch portion 100 is assembled.

As shown in FIGS. 7 and 9A, a contact surface 112 a that rises upward from the upper surface of the main body 111 is formed on the front surface of the receiving portion 112. When the sliding door 2 is closed to a predetermined position, the contact surface 112a comes into contact with and is pressed against the protrusion 11a of the captured member 11 (see FIG. 3B).
Further, as shown in FIGS. 8 and 9B, a spring receiving groove 112 b having a shape recessed in the front-rear direction is formed on the rear surface of the receiving portion 112. One end of the compression coil spring 113 is supported by the spring receiving groove 112b.

As shown in FIGS. 7 and 8, particularly FIGS. 9A and 9B, the catch plate 120 is formed in a substantially rectangular shape, and is formed with catch claws 121 that protrude upward from the upper surface thereof. ing. When the capture plate 120 moves upward, the capture claw 121 captures the protrusion 11a of the captured member 11 in the front-rear direction by the receiving portion 112 and the capture claw 121 described above ( (Refer FIG.3 (b)).
A taper contact surface 121 a is formed on the rear surface of the catching claw 121. The tapered contact surface 121a is an inclined surface that is inclined from the lower side of the taper toward the upper front side. That is, when the sliding door 2 is moved in the opening direction, the protruding portion 11a of the member to be captured 11 abuts on the taper abutting surface 121a, and the catching claw 121 is tilted forward and downward in a direction perpendicular to the taper surface. (See FIG. 2B).

  In addition, the catch plate 120 is formed with an auxiliary claw 122 positioned on the front side of the catch claw 121. The auxiliary claw 122 is provided as an auxiliary so that the projection 11a is captured by the capture claw 121 and the auxiliary claw 122 when the projection 11a cannot be captured by the capture claw 121 and the receiving portion 112 described above. It is what was done.

The auxiliary claw 122 is configured so that the opening / closing body closing device 10 can close the sliding door 2 even when the captured member 11 is captured by the capture claw 121 and the auxiliary claw 122. More specifically, when the auxiliary claw 122 opens the sliding door 2 and is pressed forward by the projection 11a of the captured member 11, the auxiliary claw 122 bends downward to cause the captured member 11 to move. It escapes to the front side of the auxiliary claw 122. Note that the capture plate 120 does not reach the position of the upper and lower elongated holes 211b of the guide hole 211 (see FIGS. 2 to 4), which will be described in detail later, at the position where the auxiliary claw 122 is pressed (the capture claw 121 and Since the position captured by the receiving portion 112 is the position of the vertical slot 211b), it cannot move downward. Therefore, the auxiliary pawl 122 is configured to bend downward and escape, and when the catch plate 120 reaches the position of the upper and lower elongated holes 211b, the contact block 110 is moved forward by the biasing force of the compression coil spring 113. As it moves to, it moves to the lower side.

  Further, the capture plate 120 is formed with an attachment hole 123 that is located below the capture claw 121 and penetrates in the left-right direction. The attachment hole 123 is a round hole having a diameter that is the same as or slightly larger than the outer diameter of the link pin 140, and a link pin 140, which will be described in detail later, is inserted into the attachment hole 123. As a result, the catch plate 120 moves together with the link pin 140 as the link pin 140 moves.

  As shown in FIGS. 7 to 9, the inner block 130 includes an outer shell 131 formed in a substantially rectangular parallelepiped shape, a support 132 projecting rearward from the rear end of the outer shell 131, and the left and right sides of the outer shell 131. It is comprised with the guide protrusion 133 which protrudes toward the outer side of each right and left from both sides.

  As shown in FIGS. 7 to 9, the outer portion 131 is hollow. The cavity is formed so as to penetrate vertically, and the contact block 110 is inserted and assembled into the cavity from the opening on the upper side. In addition, the outer shell 131 is formed with a guide hole 131a extending in the vertical direction when viewed from the front. The guide hole 131a is formed so as to penetrate in the left-right direction of the outer shell part 131, and the link pin 140 is inserted when the catch part 100 is assembled.

  In addition, a receiving surface 131b that rises up and down is formed at a rear end portion in the cavity of the outer shell portion 131. The other end portion of the compression coil spring 113 described above is supported on the receiving surface 131b in a state in which the contact block 110 is assembled in the inner packet block 130.

  Further, a constricted portion accommodating groove 131c for accommodating a constricted portion 227a of a spring receiver 227 of a tension spring unit 225, which will be described in detail later, is formed in the lower rear portion of the outer shell portion 131 (under the support portion 132). The constricted portion receiving groove 131c restricts the position of the spring receiver 227 in the left-right direction and the front-rear direction.

  As shown in FIGS. 8 and 9, the support portion 132 is formed with a mounting groove 132 a extending in the vertical direction at the rear end portion. A tip end portion of an output shaft 221a of a damper unit 221 described later in detail is inserted into the mounting groove 132a, and the mounting position in the left-right direction of the output shaft 221a is restricted.

  The guide protrusion 133 extends in the front-rear direction (moving direction of the sliding door 2), and is fitted into a guide hole 211 (details will be described later, see FIGS. 7 and 8) of the retracting part 200. Thereby, the catch part 100 can move along the guide hole 211 with respect to the retracting part 200.

  As shown in FIGS. 7 and 8, the pull-in portion 200 includes a guide portion 210 to which the catch portion 100 is assembled inside, and a damper support portion 220 attached to the rear side of the guide portion 210.

  As shown in FIGS. 7 and 8, the guide portion 210 extends in the front-rear direction, and a cross-sectional shape in a plane orthogonal to the front-rear direction is formed in a U-shape that opens upward. That is, the catch portion 100 is inserted into the guide portion 210 from the upper opening and assembled.

In addition, guide holes 211 having an inverted L shape are formed on the left and right sides of the guide part 210. More specifically, the guide hole 211 is formed by a front / rear elongated hole 211a extending in the front / rear direction, and a vertically elongated hole 211b extending downward from the front end of the front / rear elongated hole 211a.
The link pin 140 described above is inserted into the guide hole 211. That is, the link pin 140 inserts the above-described catch part 100 into the guide part 210, and then guides the guide hole 211 from the outside of the guide part 210, the guide hole 131 a of the inclusion block 130, the inclined hole 111 a of the abutment block 110, and capture. The mounting holes 123 of the plate 120 are inserted in this order.
Further, as described above, the guide protrusion 133 of the inner block 130 is fitted in the front and rear elongated hole 211a of the guide hole 211, and the catch portion 100 is guided in the front and rear direction along the front and rear elongated hole 211a. It has become.

  Further, the upper and lower elongated holes 211b of the guide hole 211 prevent the catch portion 100 from moving in the front-rear direction when the link pin 140 is moved below the upper and lower elongated holes 211b. That is, the guide hole 211 also functions as a lock mechanism for locking the movement of the catch part 100.

  Further, the guide portion 210 is provided with a bottom surface of the guide portion 210 extending forward for attachment, and an attachment hole 212 is formed in the extended bottom surface. As shown in FIGS. 7 and 8, the mounting screw 213 is inserted into the mounting hole 212 from the lower side, and is mounted on the suspended portion 300 side through the mounting block 240.

  As shown in FIGS. 7 and 8, particularly FIG. 10, the mounting block 240 has a substantially U-shape when viewed from the front, and includes an upper block 241, a lower block 242, and a side block 243. Yes. The upper block 241 and the lower block 242 are respectively provided with mounting holes 241a and 242a through which the mounting screws 213 are inserted so as to be aligned in the vertical direction. Further, the side block 243 is provided with a mounting hole 243a penetrating in the left-right direction.

In addition, on the lower left and right sides of the rear end portion of the guide portion 210, an extension portion 214 is formed for mounting and positioning on the damper support portion 220.
Further, an attachment hole 216 for attaching to the attachment hole 243 a of the attachment block 240 via the attachment pin 215 is formed on the front side of the left and right side portions of the guide portion 210. Furthermore, an attachment hole 218 for attaching to the attachment hole 219 of the damper support portion 220 via the attachment pin 217 is formed on the rear side of the left and right side portions of the guide portion 210.

  As shown in FIGS. 7 and 8, the damper support portion 220 is divided into left and right parts (the left damper support portion is indicated by 220a and the right damper support portion 220b). A damper unit 221 is housed inside. The damper unit 221 includes an output shaft 221a and a unit main body 221b that holds the output shaft 221a so as to advance and retract in the axial direction. The unit main body 221b accommodates a resistance fluid (not shown) such as oil that applies a braking force to the movement of the output shaft 221a in the contraction direction. Further, the front end portion of the output shaft 221a is inserted into the mounting groove 132a of the support portion 132 in a state where the catch portion 100 and the pull-in portion 200 are assembled, and the damper unit 221 is inserted in the front-rear direction of the inner block 130 of the catch portion 100. Buffer the move to.

  The left and right damper support portions 220a and 220b are respectively formed with damper accommodating grooves 224 that match the shape of the damper unit main body 221b, and the damper unit main body 221b is inserted (accommodated) into the damper accommodating groove 224. The damper unit 221 is assembled by combining the left and right damper support portions 220a and 220b.

  In addition, two engaging claws 222 that protrude toward the right damper support portion 220b are provided on each of the upper and lower sides of the left damper support portion 220a (four in total). On the other hand, a locking groove 223 is provided at a position corresponding to the engagement claw 222 in the right damper support portion 220b. The damper support portions 220 are assembled by combining the left and right damper support portions 220a and 220b and locking the engaging claws 222 in the locking grooves 223.

  Further, a tension spring unit 225 is attached to the damper support portion 220 below the damper unit 221. The tension spring unit 225 includes a tension spring 226 and two spring receivers 227 attached to both ends of the tension spring 226.

  The tension spring 226 is a coil spring, and the tension spring unit 225 is used as a tension spring. Further, the two spring receivers 227 are formed with a constricted portion 227a at the tip portion.

The spring receiver 227 located on the front side is assembled in a spring receiver receiving groove 228 formed in the left and right damper support portions 220a and 220b and extending in the front-rear direction. The constricted portion 227a of the spring receiver 227 It is assembled in the receiving groove 131c. Thereby, the position of the front side spring receiving portion 227 in the front-rear direction is restricted.
The spring receiver 227 positioned on the rear side is positioned behind the front spring receiver, and is similarly assembled in the spring receiver receiving groove 228. Further, the constricted portion 227 a of the spring receiver 227 is assembled to the constricted portion receiving groove 229 formed at the rear end portion of the spring receiver receiving groove 228. As a result, the position of the rear spring receiving portion 227 in the front-rear direction is restricted.

  Further, as shown in FIGS. 7 and 8, engaging claws 230 extending from the rear end portions of the damper support portions 220a and 220b to the rear are formed on the left and right damper support portions 220a and 220b, respectively. The engaging claw 230 is detachably attached to the rear guide roller part 400 attached to the rear part of the retracting part 200. More specifically, the rear guide roller unit 400 includes an attachment cover 401 located at the center, a rotation shaft 402 extending in the left-right direction, and two guide rollers 21 rotatably attached to the rotation shaft 402. It consists of

  The attachment cover 401 is formed with an engagement hole 401a that can be engaged with the engagement claw 230 described above. These engaging claws 230 and engaging holes 401a are detachably attached without using a fastening member or the like. That is, the engagement claw 230 can be engaged with or disengaged from the engagement hole 401a by the elasticity of the engagement claw 230.

  As shown in FIGS. 7 and 8, particularly FIG. 10, the hanging part 300 is attached to the front guide roller part 310 including the guide roller 21 and the lower side of the front guide roller part 310 to fix the sliding door 2. In addition, a fixing unit 320 whose attachment position can be finely adjusted is provided.

Four guide rollers 21 are rotatably attached to the front guide roller portion 310 via a rotation shaft (not shown) on a main body portion 311 located at the center thereof. Further, the rear end portion of the main body portion 311 is formed with a sandwiching portion 311a that extends rearward from the rear end portion and is formed with a gap in the vertical direction. An attachment hole 311b is formed in the clamping portion 311a so as to penetrate vertically.
The upper block 241 of the mounting block 240 described above is mounted on the clamping portion 311a, and the mounting pins 213 are inserted through the mounting holes 212, 242a , 241a , and 311b, respectively. Thereby, the guide part 210 is fixed to the hanging part 300 via the attachment block 240.

  The fixing unit 320 can be finely adjusted in the left-right direction position of the sliding door 2 attached to the fixing unit 320 by inserting a screwdriver into the adjusting portion 321 exposed at the front end and rotating the fixing unit 320.

Next, the operation of the opening / closing body closing device according to the embodiment of the present invention will be described with reference to FIGS. 2 to 4 and FIGS. 11 (a) and 11 (b).
Fig.11 (a) is side sectional drawing which shows the state (standby state) which the catch part 100 is not capturing the protrusion 11a of the to-be-captured member 11, Comprising: It is the F section enlarged view of FIG.2 (b). is there. FIG. 11B is a side sectional view showing a state (moving state) in which the catch portion 100 captures the protrusion 11a of the member 11 to be captured, and is an enlarged view of the G portion in FIG. FIG.

  In the standby state (the state in which the sliding door 2 is opened. The state shown in FIGS. 2A to 2C and FIG. 11A), the member 11 to be captured is on the front side of the catch portion 100 of the capture pull-in mechanism 20. It is in a position away from (left side of the page). In this state, the link pin 140 is positioned below the upper and lower elongated holes 211b of the guide hole 211 as shown in FIG. Therefore, even if the catch portion 100 is moved in the front-rear direction (left and right on the paper surface), the link pin 140 is locked and the catch portion 100 does not move.

  At this time, as shown in FIG. 11A, the link pin 140 is located below the guide hole 131a of the inner block 130 and obliquely below the inclined hole 111a of the contact block 110. . That is, the capture plate 120 is at a lower position relative to the capture pull-in mechanism 20. In this state, as shown to Fig.11 (a), the catching claw 121 exists in the position below the protrusion 11a of the to-be-captured member 11, and the catch part 100 does not capture the protrusion 11a.

  When the sliding door 2 is moved in the closing direction from the state shown in FIG. 11A (standby state), the protrusion 11a of the captured member 11 contacts the contact surface 112a of the contact block 110 of the catch unit 100. Further, the contact surface 112a is pushed backward (right side of the drawing) by the protrusion 11a, and the contact block 110 is against the urging force of the compression coil spring 113 (the direction in which the contact block 110 is pressed). Move to.

In this released state, as shown in FIG. 11B, the link pin 140 is pushed upward along the inclined hole 111a as the contact block 110 moves rearward. Further, the link pin 140 moves upward along the guide hole 131a of the inner block 130. That is, in this link mechanism, the contact block 110 moves rearward relative to the inner block 130. In this link mechanism, the catch plate 120 moves upward relative to the internal block 130. As a result, the protrusion 11 a of the captured member 11 is captured in the front-rear direction by the receiving portion 112 of the contact block 110 and the capture claw 121 of the capture plate 120.
Here, the moving speed of the capturing plate 120 upward can be slower than the moving speed of the contact block 110 because the length of the guide hole 131a is short based on the length of the inclined hole 111a. That is, the capture plate 120 moves at a speed slower than the speed at which the sliding door 2 is opened and closed (the moving speed of the contact block 110).

  Further, the link pin 140 moves above the upper and lower elongated holes 211b of the guide part 210. Thereby, the lock of the link pin 140 is released, and the catch portion 100 can freely move in the front-rear direction along the front-rear elongated hole 211a of the guide portion 210 (release state).

In the released state, the catch portion 100 is urged rearward (paper surface) rightward by the tension spring force of the tension spring unit 225. More specifically, the catch part 100 stops moving at the fixed position of the member to be captured 11, and the other part of the capture pull-in mechanism 20 excluding the catch part 100 moves along the longitudinal slot 211 a of the guide part 100, It moves relative to the front (left side of the page, closing direction) (moving state). That is, the tension spring force of the tension spring unit 225 biases the sliding door 2 in a direction for forcibly closing it. Thereby, even if the sliding door 2 is a half-opened body, it is forcibly closed by this spring force, and the sliding door 2 is closed completely (closed state).
On the other hand, in the moving state described above, the spring force of the tension spring unit 225 is buffered by the damper unit 221 so that the sliding door 2 does not collide with the door stop 3 vigorously.

  On the other hand, when opening the sliding door 2 from the closed state (when shifting from the closed state to the moving state), the sliding door 2 is moved rearward (right side of the page) in FIG. At this time, the protrusion 11a contacts the capture claw 121 of the capture plate 120 (specifically, the tapered contact surface 121a of the capture claw 121). In this case, the catch part 100 stops at the fixed position of the member to be captured 11, and the other parts of the capture pull-in mechanism 20 excluding the catch part 100 are relatively rearward along the longitudinal slot 211 a of the guide part 100. Move to the right side of the page (opening direction). This movement is a direction in which the tension spring 226 of the tension spring unit 225 is pulled.

  When the sliding door 2 is further opened, the link pin 140 eventually comes into contact with the front end of the front and rear long hole 211a of the guide portion 210 (released state). When the sliding door 2 is further opened from this state, the protrusion 11a of the member to be captured 11 strongly presses the tapered contact surface 121a of the capture claw 121. As a result, the capture plate 120 slides linearly along the taper of the tapered contact surface 121a away from the protrusion 11a of the captured member 11, that is, sinks downward, and moves the link pin 140 to the lower side. Press down.

At this time, the link pin 140 moves downward along the guide hole 131 a of the internal block 130 together with the capture plate 120. Thereby, the capture plate 120 moves relative to the inner block 130 downward (standby state).
In the abutment block 110, the link pin 140 moves obliquely downward to the right along the inclined hole 111a. As a result, the abutment block 110 moves to the front side relative to the inner block 130 by the inclination.
In addition, the abutting block 110 is promoted (assisted) by the force of moving forward by the urging force of the compression coil spring 113. Thereby, the movement of the link mechanism at the time of release of capture (at the time of transition from the release state to the standby state) becomes smoother.

  Thereby, the link pin 140 moves downward to the vertical slot 211b of the guide part 210. In this state, the link pin 140 is locked from moving in the left-right direction and enters a standby state. Further, the tension spring 226 of the reference spring unit 225 is held in a tensioned state.

  According to the opening / closing body closing device according to the embodiment of the present invention, the capture pull-in mechanism 20 is in contact with the projection 11a of the captured member 11 when capturing the projection 11a of the captured member 11. Since 110 is configured to move in the direction in which it is pushed rearward, even if the sliding door 2 is closed with force, the force that contacts the captured member 11 can be buffered. Thereby, the engagement sound (collision sound) when the contact block 110 and the protrusion 11a of the captured member 11 come into contact at the time of capture can be suppressed, and the engagement sound can be further reduced.

  Further, since the catching claw 121 of the catching plate 120 moves upward at a speed slower than the speed at which the sliding door 2 is opened and closed, the momentum of the catching plate 120 moving upward is relaxed, and the catching plate 120 is slowly moved. Can be raised. Thereby, when the capture plate 120 moves to the upper limit at the time of capture, the collision sound between the link pin 140 and the upper end portion of the guide hole 131a can be suppressed, and the operation sound can be further reduced.

  Further, since the capture pull-in mechanism 20 is constituted by a link mechanism that slides the capture plate 120 and the contact block 110 by an opening / closing force that moves the sliding door 2 along the guide rail 1, the capture plate 120 and the contact block The operation of moving the 110 together can be easily realized.

  Further, this link mechanism has a link pin 140 attached to the capture plate 120 and a guide hole 131a through which the link pin 140 is inserted, and the inclusion block 130 moves the capture plate 120 up and down along the guide hole 131a. And an abutment block 110. The abutment block 110 is formed with an inclined hole 111a through which the link pin 140 is inserted. When the abutment block 110 is pressed by the protrusion 11a of the captured member 11, the inclined hole 111a is formed. Since the capture plate 120 is moved in the vertical direction along the inclined hole 111a, the capture plate 120 is moved in the front-rear direction relative to the inner block 130 along the inclined hole 111a. Can be easily moved together.

  Furthermore, this link mechanism is a compression coil that urges the abutment block 110 forward between the inclusion block 130 and the abutment block 110 when the capture is released, and promotes the movement of the link mechanism when the capture is released. Since the spring 113 is provided, the movement of the link mechanism when releasing the capture can be lightened.

  Further, since the capture pull-in mechanism 20 includes a lock mechanism that holds the urging force of the tension spring 226 when the capture plate 120 is slid to release the capture, the lock mechanism is used by utilizing the link mechanism described above. Can be configured easily.

  Further, the lock mechanism includes a guide hole 211 through which the link pin 140 is inserted, and the guide hole 211 guides the link pin 140 in a direction (front-rear direction) in which the tension spring 226 is urged, Since the upper and lower elongated holes 211b guide the link pin 140 in a direction (vertical direction) different from the direction in which the tension spring 226 is urged, the capture plate is moved by the opening / closing force that moves the sliding door 2 along the guide rail 1. In addition to moving the 120 and the abutment block 110, the lock mechanism can be easily configured using the above-described link mechanism. Therefore, it is not necessary to provide a lock mechanism separately, and the number of parts can be reduced.

The opening / closing body closing device according to the embodiment of the present invention has been described above. However, the present invention is not limited to the above-described embodiment, and various modifications and changes can be made based on the technical idea of the present invention. It is.
For example, although the sliding door 2 is described in the present embodiment, the present invention is not limited to this. For example, even when a drawer or a double door is opened and closed, the present invention can be used as long as it is a device that urges the door to be forcibly closed.

  Moreover, in this Embodiment, although the opening-closing body closing device 10 is provided in the upper part of the sliding door, it can also be provided in the lower part. That is, even when the guide rail 1 is attached to the lower edge of the opening, the opening / closing body closing device 20 according to the present invention may be attached to the lower part thereof.

  Moreover, in this Embodiment, although the tension spring 226 and the compression coil spring 113 were described as a spring which is an elastic body, it is not limited to a spring. That is, any material that generates an urging force by elasticity can be used in the present invention.

  Further, in the present embodiment, the guide hole 211 (front and rear long hole 211a, upper and lower long hole 211b) formed in the guide part 210 is formed in an inverted L shape, but the moving direction of the link pin 140 in the link mechanism It is also possible to form other shapes based on the biasing direction of the tension spring 226 of the tension spring unit 225. In other words, the longitudinal elongated hole 211a that extends in the same direction as the biasing direction of the tension spring 226 holds the biasing force of the tension spring 226 if the vertical slot is in a direction different from the biasing direction of the tension spring 226. And the locking mechanism will work.

1 Guide rail (fixing member)
2 Sliding door (opening / closing body)
3 Per door 10 Opening / closing body closing device 11 Captured member 11a Protruding portion 20 Capturing and retracting mechanism 21 Guide roller 100 Catch portion 110 Abutting block 111 Main body portion 111a Inclined hole 112 Receiving portion 112a Abutting surface 113 Compression coil spring (second coil Elastic body)
120 Capture plate (capture member)
121 catching claw 121a taper contact surface 122 auxiliary claw 130 inclusion block 131 outer part 131a guide hole 131b receiving surface 132 support part 132a mounting groove 133 guide protrusion 140 link pin 200 pull-in part 210 guide part 211 guide hole 211a front and rear long hole 211b Vertically long hole 213 Mounting screw 214 Extension part 215, 217 Mounting pin 220 (220a, 220b) Damper support part 221 Damper unit 222 Engaging claw 225 Tension spring unit 226 Tension spring (first elastic body)
227 Spring receiver 228 Spring receiver housing groove 229 Constriction portion housing groove 230 Engagement claw 240 Mounting block 241 Upper block 242 Lower block 243 Side block 300 Hanging portion 310 Front guide roller portion 311 Main body portion 311a Holding portion 320 Adhering unit 321 Adjusting portion 400 Rear guide roller portion 401 Mounting cover 402 Rotating shaft

Claims (6)

A member to be captured attached to either one of the opening / closing body or the fixed member for movably guiding the opening / closing body;
A catching member attached to the other of the opening / closing body or the fixing member, and abutting and pressing the catching member by an opening / closing force for moving the opening / closing body along the fixing member. A capture retraction mechanism having a contact block that moves the capture member to capture the captured member;
A first elastic body for urging the opening / closing body in a direction to forcibly close the opening / closing body in a state where the capturing member captures the captured member;
An opening / closing body closing device comprising:
The capture pull-in mechanism includes a link mechanism that slides the capture member and the contact block by an opening / closing force that moves the open / close body along the fixed member, and when capturing the captured member, Configured to move in a direction in which the abutment block is pressed against the capture member ;
When the contact block is pressed against the captured member, the capture member moves in a direction approaching the captured member, and opens and closes the captured member together with the contact block. An opening / closing body closing device configured to be captured at a front-rear position in a direction .   2. The opening / closing body closing device according to claim 1, wherein the capturing member is moved at a speed slower than a speed of opening / closing the opening / closing body. The link mechanism is
A link pin attached to the capture member;
An inclusion block that has a guide hole through which the link pin is inserted, and moves the capture member up and down along the guide hole;
The contact block;
Consists of
The contact block is formed with an inclined hole through which the link pin is inserted. When the contact block is pressed by the member to be captured, the capturing member is moved in the vertical direction along the inclined hole, and the inclined The opening / closing body closing device according to claim 1 , wherein the opening / closing body closing device moves in the front-rear direction relative to the internal block along the hole. The link mechanism is a second elastic body that urges the abutment block forward between the inclusion block and the abutment block when the capture is released, and promotes the movement of the link mechanism when the capture is released. The opening / closing body closing device according to claim 1, 2, or 3 . It said capture retraction mechanism, upon capturing release the capture member is slid, claims 1 to 4, characterized in that it comprises a locking mechanism for holding the biasing force of the first elastic body closing body closing device according to any one of up to. The locking mechanism includes a guide hole through which the link pin is inserted. The guide hole includes a front and rear elongated hole that guides the link pin in a direction in which the first elastic body is urged, and the link pin. The opening / closing body closing device according to claim 5 , wherein the opening / closing body closing device is configured by a vertically elongated hole that guides in a direction different from a direction in which the first elastic body is urged.

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