JP7020828B2 - Soft closing mechanism and sliding door - Google Patents

Description

The present invention relates to a soft closing mechanism adopted for a sliding door or the like and a sliding door provided with the mechanism.

Conventionally, the soft closing mechanism adopted for a sliding door in a room is known as a mechanism for pulling the sliding door with a spring until it is fully closed while absorbing the impact when the sliding door is closed with a damper (see, for example, Patent Document 1). ..

Japanese Patent No. 4786944

Such a soft-close mechanism needs to store a force in the spring in the section where the sliding door starts to open, and the operating force at the start of opening the sliding door becomes large, so that there is room for improvement in the operability at the start of opening. Also, for example, the sliding door at the entrance has a structure that is pulled into the inside of the house when it is fully closed in order to improve the heat insulation and airtightness of the building, and it is heavier than the sliding door in the room, so it opens. A large amount of movement is required at the beginning. For this reason, if a soft-close mechanism is provided in the sliding door of the entrance, it is expected that the operating force at the start of opening will be very large, so that the operability at the start of opening is strongly required to be improved. It should be noted that such a problem is not limited to the case where the soft closing mechanism is adopted for the sliding door, and may occur similarly when it is adopted for other things such as a drawer that opens and closes by sliding.

The present invention has been made in view of the above, and an object of the present invention is to provide a soft closing mechanism having improved operability at the start of opening and a sliding door provided with the soft closing mechanism.

In order to achieve the above object, the present invention is a soft closing mechanism adopted for an opening / closing member (for example, a sliding door 1 of a front door described later) that opens / closes by sliding, and the opening / closing member slides in the closing direction. A damper (for example, a damper 19 described later) that applies a damping force to the opening / closing member and an urging force in the closing direction when the opening / closing member slides in the opening direction are accumulated, while the opening / closing member moves in the closing direction. The opening / closing member is provided with a slide urging member (for example, a spring 20 described later) that applies an urging force in the closing direction to the opening / closing member, and the slide urging member is predetermined from a fully closed position of the opening / closing member. When the opening / closing member slides in the opening direction in the first section of the distance, the opening / closing member opens the second section continuous with the first section while the no-load state is obtained in which the urging force in the closing direction is not accumulated. Provided is a soft-close mechanism (for example, a soft-close mechanism 5 described later) that is in a load state in which an urging force in the closing direction is accumulated when sliding in a direction.

Further, by sliding along the rails (for example, the rail 17 described later) arranged along the opening direction and the closing direction of the opening / closing member, the damping force of the damper and the slide urging member can be obtained. A slider for transmitting urging force to the opening / closing member (for example, a slider 18 described later) and a held member (for example, a held member provided on the slider and fixed to the opening / closing member when the opening / closing member slides in the closing direction). A first holding means (for example, described later) that holds the pin 16) described later and slides the slider integrally with the opening / closing member, but does not hold the held member when the opening / closing member slides in the opening direction. The first catcher 21) and the opening / closing member are provided on the side of the slider in the opening direction of the opening / closing member, and do not hold the held member when the opening / closing member slides in the closing direction. Provided with a second holding means (for example, a second catcher 22 described later) that holds the held member and slides the slider integrally with the opening / closing member when the opening / closing member slides in the opening direction. Is preferable.

Further, the slider is provided with a locking means (for example, a lock unit 23 described later) that locks the slider at a predetermined position to prevent the slider from sliding, while unlocking the slider to enable the slider to slide. The first holding means has a first closing direction posture in which the held member fits when the opening / closing member slides in the closing direction, and the held member fits when the opening / closing member slides in the opening direction. A first swing member (for example, a first swing piece 24 described later) that swings between the first open direction posture and the first swing member are attached with the direction of the first closed direction posture. The second holding means includes a first swinging urging member (for example, a spring 25 described later) that applies a force or an urging force in the direction of the first open posture, and the opening / closing member is closed in the closing direction. Swings between a second closed-direction posture in which the held member fits when sliding to, and a second open-direction posture in which the held member fits when the opening / closing member slides in the open direction. The second rocking member (for example, the second rocking piece 26 described later) and the second rocking member are subjected to an urging force in the direction of the second closed posture or the direction of the second open posture. A second swinging urging member (for example, a spring 27 described later) for applying force is provided, and the locking means is provided on the slider and is inserted and removed from the lock hole provided on the rail. A de-member (for example, an insertion / removal piece 28 described later) and a lock urging member (for example, a spring 29 described later) that imparts an urging force to the insertion / removal member in the insertion direction in which the insertion / removal member inserts into the lock hole. ), And when the first swinging member swings from the first closing posture to the first opening posture, the insertion / removal member is moved against the urging force of the lock urging member. It is preferable to provide an interlocking member (for example, an interlocking link 30 described later) for escaping from the lock hole.

The present invention also provides a sliding door provided with the above-mentioned soft closing mechanism (for example, a sliding door 1 at the entrance described later).

According to the soft closing mechanism and the sliding door of the present invention, the operability at the start of opening can be improved.

It is a front view which shows the sliding door of the entrance provided with the soft closing mechanism which concerns on one Embodiment of this invention. It is a cross-sectional view of the sliding door of the entrance seen in the direction of the arrow A shown in FIG. It is a front view of the soft close mechanism. It is a rear view of the soft close mechanism which shows by omitting a rail. It is a front view explaining the operation of the soft closing mechanism at the time of closing operation of a sliding door, and shows the state at the time of starting the operation of a soft closing mechanism. It is a front view explaining the operation of the soft closing mechanism at the time of closing operation of a sliding door, and shows the continuation state of the state shown in FIG. 5A. It is a front view explaining the operation of the soft closing mechanism at the time of closing operation of a sliding door, and shows the continuation state of the state shown in FIG. 5B. It is a front view explaining the operation of the soft closing mechanism at the time of closing operation of a sliding door, and shows the continuation state of the state shown in FIG. 5C. It is a front view explaining the operation of the soft closing mechanism at the time of closing operation of a sliding door, and shows the continuation state of the state shown in FIG. 5D. It is a front view explaining the operation of the soft closing mechanism at the time of closing operation of a sliding door, and shows the state which the sliding door is located in the fully closed position in the continuation of the state shown in FIG. 5E. It is a front view explaining the operation of the soft closing mechanism at the time of opening operation of a sliding door, and shows the state before the operation of a soft closing mechanism 5 starts. It is a front view explaining the operation of the soft closing mechanism at the time of opening operation of a sliding door, and shows the continuation state of the state shown in FIG. 6A. It is a front view explaining the operation of the soft closing mechanism at the time of opening operation of a sliding door, and shows the continuation state of the state shown in FIG. 6B. It is a front view explaining the operation of the soft closing mechanism at the time of opening operation of a sliding door, and shows the continuation state of the state shown in FIG. 6C. It is a front view explaining the operation of the soft closing mechanism at the time of opening operation of a sliding door, and shows the continuation state of the state shown in FIG. 6D. It is a front view explaining the operation of the soft closing mechanism at the time of opening operation of a sliding door, and shows the continuation state of the state shown in FIG. 6E. It is a perspective view explaining the sliding door guard, and shows the state which the sliding door guard main body is stored. It is a perspective view explaining the sliding door guard, and shows the state which the sliding door guard main body was pulled out and engaged with a receiving part. It is a perspective view explaining the sliding door guard, and shows the state when the sliding door is half-opened in the state where the sliding door guard main body is pulled out and is engaged with a receiving part.

Hereinafter, an embodiment of the present invention will be described with reference to FIGS. 1 to 4. FIG. 1 is a front view showing a sliding door 1 of an entrance provided with a soft closing mechanism 5 according to an embodiment of the present invention. FIG. 2 is a cross-sectional view of the entrance sliding door 1 viewed in the direction of the arrow A shown in FIG. FIG. 3 is a front view of the soft closing mechanism 5. FIG. 4 is a rear view of the soft closing mechanism 5 in which the rail 17 is omitted. In FIG. 1, the door body 3 is shown by a solid line, and the others are shown by a broken line.

The entrance sliding door 1 shown in FIG. 1 includes a frame body 2, a door body 3, a door pocket 4, a soft closing mechanism 5, and the like.

The frame 2 is attached to the opening 6 which is the entrance / exit of the building. The frame body 2 includes an upper frame 7, a lower frame 8, and a pair of left and right vertical frames 9, 10 and is framed in a rectangular shape. A guide rail 7a along the lateral direction (open direction OP and closed direction CL) is formed below the upper frame 7. The guide rail 7a guides the upper door wheel 12 rotatably fixed to the upper end of the door body 3. A guide rail 8a along the lateral direction is formed above the lower frame 8. The guide rail 8a guides the lower door wheel 13 fixed to the lower end of the door body 3.

As shown in FIG. 2, the guide rail 8a has a shape in which the outdoor side at the end of the closing direction CL is inclined toward the indoor side. The guide rail 8a pulls the door body 3 into the indoor side when the door body 3 is fully closed, and improves the heat insulating property and the airtightness of the building.

It will be described back to FIG. When the door body 3 is fully closed, the side end portion of the door body 3 on the closing direction CL side comes into contact with the vertical frame 9 on the closing direction CL side. The vertical frame 10 on the side of the opening direction OP is in contact with the side end portion of the door body 3 housed in the door pocket 4 on the side of the opening direction OP when the door body 3 is fully opened.

The door body 3 is a manually operated door, and the opening / closing operation of the opening 6 is performed by sliding in the opening direction OP and the closing direction CL inside the frame body 2. The door body 3 includes a door body main body 11, an upper door car 12, and a lower door car 13. The door body 11 has a substantially rectangular shape made of a steel plate of more than 70 kg. The upper door wheel 12 is fixed to the end of the closing direction CL at the upper end of the door body main body 11. The upper door roller 12 is guided by the guide rail 7a formed on the upper frame 7 to slide the door body main body 11 in the opening direction OP and the closing direction CL. The lower door wheel 13 is fixed to the lower end of the door body main body 11. The lower door roller 13 is guided by the guide rail 8a formed on the lower frame 8 to slide the door body main body 11 in the opening direction OP and the closing direction CL.

The door pocket 4 is provided so as to close the side of the opening direction OP in the opening 6, and accommodates the door body 3 slid in the opening direction OP.

The soft closing mechanism 5 is a mechanism that pulls the door body 3 until it is fully closed while absorbing the impact when the door body 3 is closed by mounting it on the door body 3 that opens and closes by sliding. The soft closing mechanism 5 is provided at the upper end of the opening 6 along the lateral direction.

As shown in FIGS. 3 and 4, the upper door roller 12 includes a door roller main body 14, two pairs of wheels 15, and a pin 16. Since the door roller body 14 is fixed to the end of the closing direction CL at the upper end of the door body main body 11, it slides in the opening direction OP and the closing direction CL together with the door body main body 11. The two pairs of wheels 15 are attached to the door roller body 14 so as to be rotatable. These two pairs of wheels 15 roll the guide rail 7a (see FIG. 1) of the upper frame 7 (see FIG. 1) in the open direction OP and the closed direction CL. The pin 16 is provided at the center of the two pairs of wheels 15 on the side facing the soft closing mechanism 5 and on the side in the closing direction CL. By connecting the pin 16 to the soft-close mechanism 5, the opening / closing operation of the door body 3 acts on the soft-close mechanism 5, and the operation of the soft-close mechanism 5 acts on the door body 3.

The soft close mechanism 5 includes a rail 17, a slider 18, a damper 19, a spring 20, a first catcher 21, a second catcher 22, and a lock unit 23.

The rail 17 is arranged along the opening direction OP and the closing direction CL of the door body 3 and guides the slider 18. The rail 17 has a shape in which the indoor side facing the upper door wheel 12 is open. Therefore, the first catcher 21 and the second catcher 22 provided on the slider 18 guided by the rail 17 can be connected to the pin 16 of the upper door wheel 12. A lock hole 17a, which will be described later, is formed at a predetermined position on the lower surface of the upper plate constituting the rail 17.

The slider 18 slides along the rail 17. This slider 18 connects the end on the side of the open direction OP of the damper 19 whose end on the side of the closed direction CL is fixed to the rail 17, and the end on the side of the closed direction CL is connected to the rail 17. The end of the fixed spring 20 on the opening direction OP side is connected. Therefore, the slider 18 slides along the rail 17 with the pin 16 of the upper door wheel 12 fixed to the door body 3 connected to the first catcher 21 or the second catcher 22 provided on the slider 18. As a result, the damping force of the damper 19 and the urging force of the spring 20 are transmitted to the door body 3.

The damper 19 is arranged along the rail 17 so as to be parallel to the spring 20, the end on the closing direction CL side is fixed to the rail 17, and the end on the opening direction OP side is on the slider 18. It is fixed. The damper 19 applies a damping force to the door body 3 when the door body 3 slides in the closing direction CL. Specifically, the damper 19 slides in the closing direction CL of the door body 3, and when the pin 16 of the upper door wheel 12 fixed to the door body 3 is connected to the first catcher 21 provided on the slider 18. By continuing to slide the door body 3 in the closing direction CL, a damping force is applied to the door body 3.

The spring 20 is arranged along the rail 17 so as to be parallel to the damper 19, the end on the closing direction CL side is fixed to the rail 17, and the end on the opening direction OP side is on the slider 18. It is fixed. This spring 20 accumulates the urging force of the closing direction CL when the door body 3 slides in the opening direction OP, while the closing direction CL is stored in the door body 3 when the door body 3 slides in the closing direction CL. Gives urgency.

Specifically, the spring 20 is used when the pin 16 of the upper door roller 12 fixed to the door body 3 is connected to the second catcher 22 provided on the slider 18 when the door body 3 slides in the opening direction OP. As the door body 3 continues to slide in the opening direction OP, it becomes a load state in which the urging force of the closing direction CL is accumulated. However, the spring 20 is used until the pin 16 of the upper door wheel 12 fixed to the door body 3 is connected to the second catcher 22 provided on the slider 18 when the door body 3 slides in the opening direction OP. It is in a no-load state in which the urging force of the closing direction CL is not accumulated.

On the other hand, the spring 20 continues when the door body 3 slides in the closing direction CL and the pin 16 of the upper door wheel 12 fixed to the door body 3 is connected to the first catcher 21 provided on the slider 18. By sliding the door body 3 in the closing direction CL, the urging force of the closing direction CL is given to the door body 3.

The first catcher 21 is provided on the side of the closed direction CL with respect to the second catcher 22 in the slider 18. The first catcher 21 holds the pin 16 of the upper door roller 12 fixed to the door body 3 and slides the slider 18 integrally with the door body 3 when the door body 3 slides in the closing direction CL. When the door body 3 slides in the opening direction OP, the pin 16 of the upper door wheel 12 fixed to the door body 3 is not held. The first catcher 21 is provided with a stopper 31 that regulates the movement of the first rocking piece 24 in the closing direction CL.

Specifically, the first catcher 21 includes a first swing piece 24 and a spring 25. The first rocking piece 24 has a holding portion 24a cut out in a U shape at its tip. The first swing piece 24 is swingably attached to the slider 18. Specifically, the first swing piece 24 has a first closing direction posture in which the pin 16 of the upper door roller 12 fixed to the door body 3 fits into the holding portion 24a when the door body 3 slides in the closing direction CL. (Refer to FIG. 5D and the like), when the door body 3 slides in the opening direction OP, the pin 16 of the upper door wheel 12 fixed to the door body 3 causes the first swing piece 24 to come into contact with the stopper 31. It swings between the first open direction posture (see FIGS. 5E and 5F, etc.) fitted in the holding portion 24a in a state where further movement to the closed direction CL is restricted. One end of the spring 25 is fixed to the slider 18, and the other end is fixed to the first swing piece 24. The spring 25 applies the urging force in the direction of the first closing direction or the urging force in the direction of the first opening direction to the first oscillating piece 24 to make the first oscillating piece 24 first. Maintain either a closed position or a first open position. The force of the spring 25 extends the spring 20 when the door body 3 in which the pin 16 of the upper door wheel 12 is fitted in the holding portion 24a of the first swing piece 24 in the first open direction posture slides in the open direction OP. The first swing piece 24 is set to swing in the first closed direction posture without causing the swing piece 24 to swing.

The second catcher 22 is provided on the side of the opening direction OP of the slider 18 with respect to the first catcher 21. The second catcher 22 does not hold the pin 16 of the upper door roller 12 fixed to the door body 3 when the door body 3 slides in the closing direction CL, while the door body 3 slides in the opening direction OP. In addition, the slider 18 is slid integrally with the door body 3 while holding the pin 16 of the upper door wheel 12 fixed to the door body 3.

Specifically, the second catcher 22 includes a second swing piece 26 and a spring 27. The second rocking piece 26 has a holding portion 26a cut out in a U shape at its tip. The second swing piece 26 can swing to a position separated from the first swing piece 24 by a predetermined distance (for example, 3 cm) from the first swing piece 24 in the slider 18 on the side of the opening direction OP. It is attached to. Specifically, the second swing piece 26 has a second closing direction posture in which the pin 16 of the upper door roller 12 fixed to the door body 3 fits into the holding portion 26a when the door body 3 slides in the closing direction CL. (See FIG. 5A, etc.) and, when the door body 3 slides in the opening direction OP, the pin 16 of the upper door roller 12 fixed to the door body 3 fits into the holding portion 26a in the second opening direction posture (FIG. 5C, etc.). Swing between) and. One end of the spring 27 is fixed to the slider 18, and the other end is fixed to the second swing piece 26. The spring 27 applies the urging force in the direction of the second closing direction or the urging force in the direction of the second opening direction to the second oscillating piece 26 to make the second oscillating piece 26 second. Maintain either a closed or second open position.

The lock unit 23 locks the slider 18 in a predetermined position to prevent the slider 18 from sliding, while unlocking the slider 18 to allow the slider 18 to slide. The lock unit 23 includes an insertion / removal piece 28, a spring 29, and an interlocking link 30. The insertion / removal piece 28 is swingably attached to the second catcher 22 (a support portion that swingably supports the second swing piece 26), and is inserted / removed from the lock hole 17a provided in the rail 17. .. Specifically, the insertion / removal piece 28 is provided in the rail 17 in a lock posture (see FIG. 5D or the like) in which the slider 18 is locked in a predetermined position while being inserted into the lock hole 17a provided in the rail 17. It swings between the unlocked posture (see FIG. 5F and the like) in which the lock is released from the locked hole 17a. One end of the spring 29 is fixed to the second catcher 22 (a support portion that swingably supports the second swing piece 26), and the other end is fixed to the insertion / removal piece 28. The spring 29 applies an urging force in the direction of the locked posture to the insertion / removal piece 28. In the interlocking link 30, one end 30a is rotatably attached to the first swing piece 24, and the other end 30b having an elongated hole formed in the extending direction of the interlocking link 30 is rotatable and slidable to the insertion / removal piece 28. It is attached. As a result, the interlocking link 30 interlocks the first swing piece 24 and the insertion / removal piece 28. Specifically, the interlocking link 30 swings when the first swing piece 24 swings from the first closed direction posture (see FIG. 5D, etc.) to the first open direction posture (see FIGS. 5E, 5F, etc.). , The insertion / removal piece 28 is made to escape from the lock hole 17a against the urging force of the spring 29. After the insert / detachment piece 28 escapes from the lock hole 17a and is released, the spring 29 always generates an upward urging force (see FIG. 5F).

Next, the operation of the soft closing mechanism 5 when the sliding door 1 is closed will be described with reference to FIGS. 5A to 5F. 5A to 5F are front views illustrating the operation of the soft closing mechanism 5 when the sliding door 1 is closed. FIG. 5A shows a state when the operation of the soft closing mechanism 5 starts. FIG. 5B shows a continuation of the state shown in FIG. 5A. FIG. 5C shows a continuation of the state shown in FIG. 5B. FIG. 5D shows a continuation of the state shown in FIG. 5C. FIG. 5E shows a continuation of the state shown in FIG. 5D. FIG. 5F shows a continuation of the state shown in FIG. 5E. In FIGS. 5D to 5F, the description of the damper 19 and the spring 20 is omitted for convenience.

When the door body 3 is slid in the closing direction CL, as shown in FIG. 5A, the pin 16 of the upper door wheel 12 fixed to the door body 3 is held by the holding portion of the second swing piece 26 in the second closing direction posture. It fits in 26a. At this time, the slider 18 is disabled by the lock unit 23. Therefore, as shown in FIGS. 5B and 5C, the second swing piece 26 swings by the pin 16 of the upper door wheel 12 fixed to the door body 3 slid in the closing direction CL, and swings in the second opening direction. Become a posture. Then, the pin 16 of the upper door wheel 12 fixed to the door body 3 is separated from the holding portion 26a of the second swing piece 26.

After that, as shown in FIG. 5D, the pin 16 of the upper door wheel 12 fixed to the door body 3 is fitted into the holding portion 24a of the first swing piece 24 in the first closed direction posture. At this time, the slider 18 is locked at a predetermined position by the lock unit 23 so that the slider 18 cannot slide. Therefore, as shown in FIG. 5E, the first swing piece 24 swings by the pin 16 of the upper door roller 12 fixed to the door body 3 slid in the closing direction CL, and comes into contact with the stopper 31 to a second swing piece 24. 1 It becomes an open direction posture. At this time, the insertion / removal piece 28 is interlocked with the swing of the first swing piece 24 by the interlocking link 30, swings against the urging force of the spring 29, and escapes from the lock hole 17a. As a result, the lock by the lock unit 23 is released, and the slider 18 is started to slide in the closing direction CL. As a result, the damping force of the damper 19 and the urging force of the spring 20 in the closing direction CL are transmitted to the door body 3 via the slider 18. After that, as shown in FIG. 5F, the door body 3 reaches the fully closed position, and the opening 6 is closed.

Next, the operation of the soft closing mechanism 5 when the sliding door 1 is opened will be described with reference to FIGS. 6A to 6F. 6A to 6F are front views illustrating the operation of the soft closing mechanism 5 when the sliding door 1 is opened. FIG. 6A shows a state before the operation of the soft closing mechanism 5 starts. FIG. 6B shows a continuation of the state shown in FIG. 6A. FIG. 6C shows a continuation of the state shown in FIG. 6B. FIG. 6D shows a continuation of the state shown in FIG. 6C. FIG. 6E shows a continuation of the state shown in FIG. 6D. FIG. 6F shows a continuation of the state shown in FIG. 6E. In FIGS. 6A to 6C, the description of the damper 19 and the spring 20 is omitted for convenience.

As shown in FIGS. 6A and 6B, when the door body 3 is slid in the open direction OP, the first swing piece 24 is a pin of the upper door roller 12 fixed to the door body 3 slid in the open direction OP. It swings by 16 and changes from the first open direction posture to the first closed direction posture. Then, the pin 16 of the upper door wheel 12 fixed to the door body 3 is separated from the holding portion 24a of the first swing piece 24.

After that, as shown in FIG. 6C, the pin 16 of the upper door wheel 12 fixed to the door body 3 fits into the holding portion 26a of the second swing piece 26 in the second opening direction posture. When the door body 3 slides in the opening direction OP in the first section up to this point at a predetermined distance from the fully closed position, the spring 20 is in a no-load state in which the urging force of the closing direction CL is not accumulated. Then, from here, the slide of the slider 18 in the opening direction OP is started, and the urging force of the closing direction CL is accumulated in the spring 20.

After that, as shown in FIG. 6D, when the slider 18 slides to the position corresponding to the lock hole 17a, the insertion / removal piece 28 is inserted into the lock hole 17a by the urging force of the spring 29. In this way, the slider 18 is locked at a predetermined position by the lock unit 23 so that the slider 18 cannot slide. When the door body 3 slides in the opening direction OP in the second section up to this point continuous with the first section, the spring 20 is in a load state in which the urging force of the closing direction CL is accumulated. Then, as shown in FIGS. 6E and 6F, the second swing piece 26 swings by the pin 16 of the upper door wheel 12 fixed to the door body 3 slid in the opening direction OP, and the second swinging piece 26 is in the second closed direction posture. become.

After that, the pin 16 of the upper door wheel 12 fixed to the door body 3 is separated from the holding portion 26a of the second swing piece 26. Subsequently, the door body 3 is slid in the opening direction OP.

According to the above-described embodiment described above, the following effects are obtained.
The soft closing mechanism 5 provided in the sliding door 1 at the entrance is a mechanism adopted for the door body 3 that opens and closes by sliding, and is attenuated to the door body 3 when the door body 3 slides in the closing direction CL. The damper 19 that applies force and the urging force of the closing direction CL are accumulated when the door body 3 slides in the opening direction OP, while the door body 3 closes to the closing direction CL when the door body 3 slides in the closing direction CL. A spring 20 that imparts an urging force to the directional CL is provided, and the spring 20 is a closing direction CL when the door body 3 slides in the opening direction OP in the first section of a predetermined distance from the fully closed position of the door body 3. On the other hand, when the door body 3 slides in the opening direction OP in the second section continuous with the first section, it becomes a load state in which the urging force of the closing direction CL is accumulated.

Further, in the present embodiment, the soft closing mechanism 5 provided in the sliding door 1 of the entrance slides along the rail 17 arranged along the opening direction OP and the closing direction CL of the door body 3 and the rail 17. A slider 18 that transmits the damping force of the damper 19 and the urging force of the spring 20 to the door body 3, and an upper door wheel provided on the slider 18 and fixed to the door body 3 when the door body 3 slides in the closing direction CL. While holding the pin 16 of the 12 and sliding the slider 18 integrally with the door body 3, when the door body 3 slides in the opening direction OP, the pin 16 of the upper door roller 12 fixed to the door body 3 is held. The upper door is provided on the side of the opening direction OP of the door body 3 with respect to the first catcher 21 and the first catcher 21 in the slider 18, and is fixed to the door body 3 when the door body 3 slides in the closing direction CL. While the pin 16 of the car 12 is not held, when the door body 3 slides in the opening direction OP, the pin 16 of the upper door car 12 fixed to the door body 3 is held and the slider 18 is integrated with the door body 3. It is equipped with a second catcher 22 to be slid.

Further, in the present embodiment, the soft closing mechanism 5 provided in the sliding door 1 of the entrance locks the slider 18 at a predetermined position to make the slider 18 unable to slide, while unlocking the slider 18 of the slider 18. The first catcher 21 includes a lock unit 23 that enables sliding, and the first catcher 21 has a first closing direction in which the pin 16 of the upper door roller 12 fixed to the door body 3 is fitted when the door body 3 slides in the closing direction CL. A first swing piece that swings between the posture and the first open direction posture in which the pin 16 of the upper door roller 12 fixed to the door body 3 fits when the door body 3 slides in the open direction OP. 24 and a spring 25 that imparts an urging force in the direction of the first closed direction or an urging force in the direction of the first open direction to the first swing piece 24, and the second catcher 22 is a door. When the body 3 slides in the closed direction CL, the second closed direction posture in which the pin 16 of the upper door roller 12 fixed to the door body 3 fits, and when the door body 3 slides in the open direction OP, the door body The direction of the second closing direction posture of the second swinging piece 26 swinging between the second opening direction posture in which the pin 16 of the upper door wheel 12 fixed to 3 is fitted and the second swinging piece 26. The lock unit 23 is provided on the slider 18 and is inserted into and removed from the lock hole 17a provided on the rail 17. The insertion / removal piece 28, the spring 29 that gives the insertion / removal piece 28 an urging force in the insertion direction in which the insertion / removal piece 28 is inserted into the lock hole 17a, and the first swing piece 24 from the first closed-direction posture. It is provided with an interlocking link 30 that allows the insertion / removal piece 28 to escape from the lock hole 17a against the urging force of the spring 29 when swinging toward the first opening direction posture.

In a general soft closing mechanism, the operating force at the beginning of opening of the sliding door becomes large, so there is room for improvement in the operability at the beginning of opening. Further, in the sliding door 1 of the entrance, in order to improve heat insulation and airtightness, the guide rail 8a has a shape in which the outdoor side at the end of the closing direction CL is inclined toward the indoor side, and the sliding door 1 in the room and the sliding door 1 are indoors. Since it is heavier than the other, a large operating force is required at the beginning of opening, but according to the soft closing mechanism 5 of the present embodiment, the section where the urging force of the spring 20 is accumulated is set to the fully closed position of the door body 3. By shifting the position by a predetermined distance (for example, 3 cm) from the position, it is possible to prevent the operating force at the start of opening from becoming excessively large.

Further, by setting the section for accumulating the urging force of the spring 20 from a position shifted by a predetermined distance (for example, 3 cm) from the fully closed position of the door body 3, for example, the door is used with a sliding door guard for ventilation. The body 3 can be maintained in a state (ventilation mode) with a slight gap opened by a distance (for example, 1 cm) smaller than a predetermined distance (for example, 3 cm) from the fully closed position. When the sliding door guard is used in this way, safety can be ensured while ensuring wind sampling.

Here, the sliding door guard will be described with reference to FIGS. 7A to 7C.
FIG. 7A is a perspective view illustrating the sliding door guard 32, showing a state in which the sliding door guard main body 33 is housed in the main body storage portion 34. FIG. 7B is a perspective view illustrating the sliding door guard 32, showing a state in which the sliding door guard main body 33 is pulled out and engaged with the receiving portion 35. FIG. 7C is a perspective view illustrating the sliding door guard 32, showing a state in which the sliding door 1 is half-opened with the sliding door guard main body 33 pulled out and engaged with the receiving portion 35.

The sliding door guard 32 includes a sliding door guard main body 33, a main body storage portion 34, a receiving portion 35, and a receiving storage portion 36. The sliding door guard main body 33 and the main body storage portion 34 are provided on the prospective surface of the vertical frame 9. The receiving portion 35 and the receiving storage portion 36 are provided on the indoor side finding surface on the vertical frame 9 side (door end side) of the door body 3.

The sliding door guard main body 33 is formed in a long shape and can be stored in the groove of the main body storage portion 34 having a groove attached to the prospective surface of the vertical frame 9. Specifically, the lower end of the sliding door guard main body 33 is rotatably supported by the main body storage portion 34, so that the sliding door guard main body 33 can be pulled out from the main body storage portion 34 and stored in the main body storage portion 34. Is possible. The sliding door guard main body 33 pulled out from the main body storage portion 34 is in a state of extending substantially horizontally in the direction of finding on the door body 3 side (see FIG. 7B).

The receiving portion 35 is formed in a long shape longer than the width of the sliding door guard main body 33, and has a receiving storage portion having a groove attached to the indoor side finding surface on the vertical frame 9 side (door end side) of the door body 3. It can be stored in the groove of 36. Specifically, since the lower end portion of the receiving portion 35 is rotatably supported by the receiving storage portion 36, the receiving portion 35 can be pulled out from the receiving storage portion 36 and stored in the receiving storage portion 36. It has become. The receiving portion 35 pulled out from the receiving storage portion 36 is in a state of extending substantially horizontally in the indoor side prospective direction (see FIG. 7B).

Therefore, the sliding door guard main body 33, which is pulled out from the main body storage portion 34 and extends substantially horizontally in the direction of finding the door body 3, is pulled out from the receiving storage portion 36 and extends substantially horizontally in the indoor side prospective direction. It is possible to engage with. The tip of the sliding door guard main body 33 is provided with a main body return portion 37 that protrudes downward when the sliding door guard main body 33 is completely pulled out, and the receiving portion 35 is completely pulled out at the tip of the receiving portion 35. Since the sliding door 38 is provided so as to project upward when the sliding door is closed, it is prevented from being disengaged from each other as shown in FIG. 7C. This makes it possible to ensure safety while ensuring wind sampling.

Although the preferred embodiment of the entrance sliding door 1 of the present invention has been described above, the present invention is not limited to the above-described embodiment and can be appropriately modified. For example, the soft closing mechanism 5 of the present invention can be adopted for other things that open and close by sliding such as a drawer, and is particularly preferably applied to a heavy one.

1 Sliding door at the entrance 2 Frame body 3 Door body (opening and closing member)
4 Door pocket 5 Soft close mechanism 6 Opening 7 Upper frame 7a Guide rail 8 Lower frame 8a Guide rail 9,10 Vertical frame 11 Door body body 12 Upper door car 13 Lower door car 14 Door car body 15 Wheels 16 pins (held member)
17 Rail 17a Lock hole 18 Slider 19 Damper 20 Spring (slide urging member)
21 1st catcher (1st holding means)
22 Second catcher (second holding means)
23 Lock unit (locking means)
24 First swing piece (first swing member)
24a Holding part 25 Spring (1st rocking urging member)
26 Second swing piece (second swing member)
26a Holding part 27 Spring (second rocking urging member)
28 Insertion / removal piece (insertion / removal member)
29 Spring (lock urging member)
30 Interlocking link (interlocking member)
OP open direction CL closed direction

Claims (3)

A soft-close mechanism used for opening and closing members that open and close by sliding.
A damper that applies a damping force to the opening / closing member when the opening / closing member slides in the closing direction,
With a slide urging member that accumulates urging force in the closing direction when the opening / closing member slides in the opening direction, while imparting urging force in the closing direction to the opening / closing member when the opening / closing member slides in the closing direction. ,
Rails arranged along the opening and closing directions of the opening / closing member, and
A slider that transmits the damping force of the damper and the urging force of the slide urging member to the opening / closing member by sliding along the rail.
When the opening / closing member is provided on the slider and slides in the closing direction, the opening / closing member holds the held member fixed to the opening / closing member and slides the slider integrally with the opening / closing member. A first holding means that does not hold the held member when sliding in the opening direction,
The opening / closing member is provided on the opening direction side of the slider with respect to the first holding means, and when the opening / closing member slides in the closing direction, the held member is not held, while the opening / closing member moves in the opening direction. A second holding means that holds the held member and slides the slider integrally with the opening / closing member when sliding.
Equipped with
The slide urging member is in a no-load state in which the urging force in the closing direction is not accumulated when the opening / closing member slides in the opening direction in the first section of a predetermined distance from the fully closed position of the opening / closing member. A soft-close mechanism that puts a load state in which an urging force in the closing direction is accumulated when the opening / closing member slides in the opening direction in a second section continuous with the first section. A locking means is provided that locks the slider in place to prevent the slider from sliding, while unlocking it to allow the slider to slide.
The first holding means is
A first swinging member that swings between a first closing direction posture in which the held member fits when the opening / closing member slides in the closing direction and a first opening direction posture.
A stopper that comes into contact with the first swing member in the first open direction posture and regulates the movement of the first swing member in the closing direction beyond the first open direction posture.
The first rocking member is provided with a first rocking urging member that imparts an urging force in the direction of the first closed posture or a urging force in the direction of the first open posture.
The second holding means is
A second closing direction posture in which the held member fits when the opening / closing member slides in the closing direction, and a second opening direction posture in which the held member fits when the opening / closing member slides in the opening direction. A second swinging member that swings between
The second rocking member is provided with a second rocking urging member that imparts an urging force in the direction of the second closed posture or a urging force in the direction of the second open posture.
The locking means is
An insertion / removal member provided on the slider and inserted / removed from the lock hole provided on the rail,
A lock urging member that imparts an urging force in the insertion direction that the insertion / removal member inserts into the lock hole to the insertion / removal member.
When the first swinging member swings from the first closing direction posture to the first opening direction posture, the insertion / removal member is moved from the lock hole against the urging force of the lock urging member. The soft closing mechanism according to claim 1 , further comprising an interlocking member for escaping. A sliding door provided with the soft closing mechanism according to claim 1 or 2 .

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