JP2020101047A - Automatic closing device for moving object such as sliding door - Google Patents

Abstract

To provide an automatic closing device for moving objects such as sliding doors that can prevent a sudden closing motion of the moving object and automatically close the moving object to the closing position without using a damper that requires a large force to open the moving object and increases the manufacturing cost of the device.SOLUTION: The automatic moving object comprises: a first member 1 including a slider 11 disposed on one of a moving object D such as a sliding door and a fixed side F, a guide member 12 for guiding the slider 11, and a spring 13 for urging the slider 11; and a second member 2 including a trigger 21 arranged on the other of the moving object and the fixed side. The first member 1 comprises a locking mechanism 14 in which when the trigger 21 first contacts the slider 11, the slider 11 and the guide member 12 temporarily comes into a locked state, and when becoming not in contact, the locked state is released.SELECTED DRAWING: Figure 1

Description

The present invention relates to an automatic closing device for an object that slides and moves, such as a sliding door and a drawer.

Conventionally, when closing a sliding object such as a sliding door or a drawer (referred to as “moving object” in the present specification), if the force applied to the moving object is too large, the door frame is fixed. There was a case where a moving object collided with the side to generate an impulsive sound, a finger was caught, or it bounced and could not be completely closed.
On the other hand, if the force applied to the moving object is too small, the moving object may stop completely without closing.

In order to cope with such a problem, an automatic closing device for a moving object, which automatically closes the moving object from a predetermined open position to a closed position, has been proposed and put into practical use (see Patent Documents 1 and 2). ).
The automatic closing device for a moving object of this kind uses a spring and a damper together to prevent a sudden closing operation of the moving object and automatically closes the moving object to the closing position.

JP, 2006-63767, A JP, 2009-79392, A

By the way, in the above-described conventional automatic closing device for a moving object, since the force of the damper is large, a large force is required to open the moving object, and the manufacturing cost of the device is high.

The present invention, in view of the problems that the conventional automatic closing device for a moving object has, requires a large force when opening a moving object, and without using a damper that is a factor that increases the manufacturing cost of the device, An object of the present invention is to provide an automatic closing device for a moving object such as a sliding door that can prevent the moving object from being suddenly closed and can automatically close the moving object to a closing position.

In order to achieve the above object, an automatic closing device for a moving object such as a sliding door of the present invention includes a slider arranged on one side of a moving object such as a sliding door and a fixed side, a guide member for guiding the slider, and a slider for urging the slider. In a device for automatically closing a moving object such as a sliding door, which comprises a first member provided with a spring and a second member provided with a trigger arranged on the other side, the first member causes the slider to first hit the trigger. It is characterized by comprising a locking mechanism for temporarily locking the slider and the guide member when they come into contact with each other, and releasing the locked state when they are in the non-contact state.

In this case, the guide member is composed of two plate-shaped pieces that are positioned in parallel with each other with the slider interposed therebetween. The guide grooves are formed in the plate-shaped pieces, and the two guide shafts that move along the guide grooves. It is possible to guide the slider by caulking both ends of the slider.

The second member may include a spring that biases the trigger.

According to the automatic closing device for a moving object such as a sliding door of the present invention, the slider is provided on one side of the moving object such as a sliding door and the fixed side, the guide member for guiding the slider, and the spring for urging the slider. In an automatic closing device for a moving object such as a sliding door, which is composed of a first member and a second member provided with a trigger arranged on the other side, the first member, when the trigger first contacts the slider, By providing a locking mechanism that temporarily locks the slider and the guide member and releases the locked state when the slider and the guide member are in the non-contact state, the damper is not used. When opening the moving object while automatically closing the moving object to the closed position by setting the biasing force of the spring to the minimum required for automatically closing the moving object to the closed position. It does not require a large force, and the manufacturing cost of the device can be reduced.

Further, the guide member is composed of two plate-shaped pieces that are positioned in parallel with each other with the slider interposed therebetween, a guide groove is formed in the plate-shaped piece, and two guide shafts that move along the guide groove are provided on the slider. By staking both ends of the guide so as to guide the slider, the guide member is prevented from being deformed by holding the space between the two plate-like pieces constituting the guide member by the guide shaft. The slider can be prevented and stably guided.

Further, since the second member is provided with the spring for urging the trigger, it is possible to buffer the shock when the trigger contacts the slider.

It is a front view at the time of changing a sliding door of an example of an automatic closing device of a moving object such as a sliding door of the present invention from an open state to a closed state. It is a front view when the sliding door of the automatic closing device for moving objects such as the sliding door is in the closed state. It is a top view. It is a front view which shows the operation state of the slider of the automatic closing device of a moving object, such as the sliding door. It is a front view showing the positional relationship between the slider of the automatic closing device for a moving object such as the sliding door and the recess of the locking mechanism. FIG. 3 is a cross-sectional view showing an operating state of a slider and a locking mechanism of an automatic closing device for a moving object such as a sliding door, where (a) shows the locking mechanism in an unlocked state and (b) shows the locking mechanism locked. Indicates the state. It is explanatory drawing which shows the main body of the 2nd member of the automatic closing apparatus of a moving object, such as the sliding door. It is explanatory drawing which shows the trigger of the 2nd member of the automatic closing device of a moving object, such as the sliding door.

Hereinafter, an embodiment of an automatic closing device for a moving object such as a sliding door of the present invention will be described with reference to the drawings.

1 to 7 show an embodiment of an automatic closing device for a moving object such as a sliding door according to the present invention.
The automatic closing device for a moving object such as a sliding door guides the slider 11, which is disposed on one of the moving object D such as a sliding door and the fixed side F, for example, the upper frame F of the door frame which is the fixed side. A first member 1 provided with a guide member 12 and a spring 13 for urging the slider 11, and a second member 2 provided with a trigger 21 arranged on a sliding door D which is a moving object, on the other hand, In the first member 1, when the trigger 21 first contacts the slider 11, the slider 11 and the guide member 12 are temporarily locked, and when the first member 1 is in the non-contact state, the locked state is released. The locking mechanism 14 is provided.

The slider 11 is provided with a first protrusion 11a and a second protrusion 11b with which the trigger 21 abuts, with a space left between the first protrusion 11a and the second protrusion 11b so that the trigger 21 can enter.

The guide member 12 is composed of two plate-shaped pieces 12a that are positioned in parallel with each other with the slider 11 interposed therebetween by fixing both ends via spacers (not shown), and the guide grooves 12b are provided in the plate-shaped pieces 12a, respectively. The two guide shafts 15 that are formed and move along the guide groove 12b are provided on the slider 11 by caulking both ends, so that the slider 11 is guided.
As a result, by holding the gap between the two plate-shaped pieces 12a forming the guide member 12 by the guide shaft 15, the guide member 12 can be prevented from being deformed and the slider 11 can be guided stably. ..

The guide groove 12b is formed in a linear shape, and one end side thereof is formed in a curved shape so that the first protrusion 11a of the slider 11 with which the trigger 21 abuts protrudes from the guide member 12 and the second protrusion 11b forms A standby position stored in the guide member 12 (FIGS. 1 and 3(a)) and an operating position where the first protrusion 11a and the second protrusion 11b protrude from the guide member 12 (FIGS. 2 and 3(b)). (D)) and can be positioned.

The spring 13 biases the slider 11 in the direction of pulling the slider 11 toward the linear end portion of the guide groove 12b, and its biasing force is set to the minimum necessary amount for automatically closing the sliding door D to the closing position. It is preferable to set it.
As a result, it is possible to prevent a large force from being required when opening the sliding door D.
Here, at the standby position (FIGS. 1 and 3(a)), the guide shaft 15 is caught in the guide groove 12b formed in the curved shape, so that the slider 11 which receives the biasing force of the spring 13 moves. Instead, it is kept stable.

The locking mechanism 14 temporarily moves the slider 11 and the guide member 12 when the trigger 21 first contacts the first protrusion 11a of the slider 11 at the standby position (FIGS. 1 and 3A). The pressing piece 14a is arranged so as to be released when it is locked and brought into a non-contact state, and the first projection 11a is arranged to project by receiving the biasing force of the spring 14b. A ball 14c that is urged to be pushed laterally by a sharp portion formed at the tip of the pushing piece 14a when the trigger 21 comes into contact with the pushing piece 14a, and a guide member into which the pushed ball 14c enters. 12 and a recess 14d formed in the plate-shaped piece 12a.
Here, the position where the recess 14d into which the ball 14c enters is formed, that is, the position where the slider 11 and the guide member 12 are temporarily locked, is the position where the trigger 21 first contacts the first protrusion 11a of the slider 11. However, in the present embodiment, the trigger 21 abuts the pressing piece 14a of the first protrusion 11a of the slider 11 at the standby position (FIGS. 1 and 3A), The slider 11 is pulled out from the guide member 12 (FIG. 3B), and is formed at a position (FIG. 3C) where the guide groove 12b transitions from a curved portion to a linear portion.

The second member 2 is provided with a spring 22 that biases the trigger 21 toward the pressing piece 14a of the first protrusion 11a of the slider 11.
As a result, it is possible to buffer the impact when the trigger 21 comes into contact with the slider 11.

Next, the operation of the automatic closing device for moving objects such as sliding doors will be described.
First, the operation when the sliding door D is changed from the open state to the closed state will be described.
When the sliding door D is moved from the open state to the closing direction, the trigger 21 comes into contact with the first projection 11a (the pressing piece 14a of the locking mechanism 14) of the slider 11 at the standby position (FIGS. 1 and 3(a)). The slider 11 is pulled out from the guide member 12 (FIG. 3B), and moves to the position (FIG. 3C) where the curved portion of the guide groove 12b shifts to the linear portion.
The impact of the trigger 21 coming into contact with the first protrusion 11a of the slider 11 is caused by a spring 22 that biases the trigger 21 included in the second member 2 toward the pressing piece 14a of the first protrusion 11a of the slider 11. Can be buffered by.

When the slider 11 moves from the curved portion of the guide groove 12b to the position where it shifts to the linear portion (FIG. 3C), the pressing piece 14a of the locking mechanism 14 is spring-loaded by the pressing force received from the trigger 21. The ball 14c located at the tip of the pressing piece 14a is pushed against the urging force of the pressing piece 14b, and is pushed out to the side by the sharp portion formed at the tip of the pressing piece 14a. The sliding door D is stopped because the slider 11 and the guide member 12 are temporarily locked by entering into the recess 14d formed in 12a.
As a result, even if the force applied in the closing direction of the sliding door D is too large, the sliding door D collides with the fixed side of the door frame or the like to generate an impact sound, a finger is caught, or it bounces and cannot be completely closed. It can be prevented.

When the sliding door D stops, the pushed pressing piece 14a returns to its original state due to its reaction and the action of the biasing force of the spring 14b of the locking mechanism 14, and the slider 11 and the guide member 12 are temporarily locked. The state is released, and the slider 11 is moved by the biasing force of the spring 13 so as to be attracted to the linear end portion side of the guide groove 12b (FIG. 3D).
At this time, since the trigger 21 is designed to be inserted between the first protrusion 11a and the second protrusion 11b provided on the slider 11, by contacting the second protrusion 11b as the slider 11 moves, The sliding door D can be moved in the closing direction.

Here, the position where the first member 1 is arranged on the upper frame F of the door frame is, in the state where the slider 11 reaches the linear end portion of the guide groove 12b, as in this embodiment shown in FIG. The contact state between the trigger 21 and the second protrusion 11b is released (the sliding door D is moved to the closed state by inertial force), and the contact state between the trigger 21 and the second protrusion 11b is maintained. (The sliding door D is moved to the closed state by the urging force of the spring 13), or the sliding door D is closed before the slider 11 reaches the linear end of the guide groove 12b. The contact state between the trigger 21 and the second protrusion 11b can be maintained (the sliding door D is in a state in which the biasing force of the spring 13 is applied).

Next, the operation of changing the sliding door D from the closed state to the open state will be described.
When the sliding door D is moved from the closed state to the opening direction, the trigger 21 comes into contact with the second protrusion 11b of the slider 11 at the operating position (FIG. 2), and the slider 11 bends from the linear portion of the guide groove 12b. It moves to (standby position (FIGS. 1 and 3(a))), and the contact state between the trigger 21 and the second protrusion 11b is released.
At this time, by setting the biasing force of the spring 13 of the first member 1 to the minimum necessary amount for automatically closing the sliding door D to the closing position, a large force is not required when opening the sliding door D. You can

Then, by releasing the contact state between the trigger 21 and the second protrusion 11b, the slider 11 is stably held at the standby position (FIGS. 1 and 3(a)), and the sliding door D is free to move. It can be moved in the opening direction.

Thereafter, the sliding door D can be changed from the open state to the closed state and from the closed state to the open state by the same operation.

This automatic closing device for a moving object such as a sliding door does not use a damper, and is the minimum necessary for automatically closing the sliding door D, which is a moving object, to the closing position by using the urging force of the spring 13 of the first member 1. By setting the size to the limit, it is possible to automatically close the sliding door D to the closed position, while not requiring a large force when opening the sliding door D, and to reduce the manufacturing cost of the device.

The automatic closing device for a moving object such as a sliding door according to the present invention has been described above based on the embodiments thereof, but the present invention is not limited to the configurations described in the above embodiments. For example, the first member 1 Is arranged on a sliding door D which is a moving object, and the second member 2 is arranged on the upper frame F of the door frame which is a fixed side, or on a sliding object such as a drawer other than the sliding door D. For example, the configuration can be applied and the configuration can be appropriately changed without departing from the spirit of the invention.

The automatic closing device for a moving object such as a sliding door of the present invention requires a large force when opening the moving object, and abrupt closing of the moving object without using a damper, which is a factor that increases the manufacturing cost of the device. It has the property of preventing movement and automatically closing moving objects to the closed position, making it suitable for use as an automatic closing device for sliding and moving objects such as sliding doors and drawers. It can be preferably used.

D Sliding door (moving object)
Upper frame of F door frame (fixed side)
DESCRIPTION OF SYMBOLS 1 1st member 11 Slider 11a 1st protrusion 11b 2nd protrusion 12 Guide member 12a Plate-like piece 12b Guide groove 13 Spring 14 Locking mechanism 14a Pressing piece 14b Spring 14c Ball 14d Recess 2 Second member 21 Trigger 22 Spring

Claims (3)

A moving object such as a sliding door and a slider provided on one side of the fixed side, a first member provided with a guide member for guiding the slider and a spring for urging the slider, and a trigger provided on the other side. In an automatic closing device for a moving object such as a sliding door including two members, when the first member first comes into contact with the slider, the slider and the guide member are temporarily locked and are not in contact with each other. An automatic closing device for a moving object such as a sliding door, which is provided with a locking mechanism for releasing the locked state when the state is reached. The guide member is composed of two plate-shaped pieces positioned in parallel with each other with the slider interposed therebetween. A guide groove is formed in the plate-shaped piece, and two guide shafts moving along the guide groove are provided on both ends of the slider. The automatic closing device for a moving object such as a sliding door according to claim 1, wherein the slider is guided by caulking. The automatic closing device for a moving object such as a sliding door according to claim 1, wherein the second member is provided with a spring for urging a trigger.

Images