KR101180141B1 - Furniture with self-closing device for sliding door - Google Patents

Abstract

PURPOSE: Furniture having an automatic door closer is provided to improve convenience for a user because the user does not need to pull and hold a switch with a hand. CONSTITUTION: Furniture having an automatic door closer comprises a housing(10), a switch(12), a spring(13), and a damper(14). The housing is installed in a rail side of furniture. The switch is installed in the inside of the housing and transfers a door to a closing position by using latching projections(11a,11b). The latching projections are connected to the door, thereby moving back and forth when opening and closing the door. The latching projections are overturned when the door is opened and back when the door is closed, thereby being locked and released from the door. The spring is installed in the inside of the housing. One side of the spring is connected to a surface of the housing and the other side of the spring is connected to the switch so that the spring pulls the switch by using the force of restitution generated after an expansion caused by the movement of the switch. The damper is installed in the inside of the housing and united to one side of the switch through a rod of a front end.

Description

Furniture with automatic door closing device {Furniture with self-closing device for sliding door}

The present invention relates to a furniture having an automatic door closing device, and more particularly, to a furniture having an automatic closing device which is to be closed slowly when the door is closed and completely closed automatically.

In general, the doors of furniture such as cabinets used in homes are supported by hinges installed in the interior of the main body of the furniture, and the opening and closing method of opening the door forward and the rails and doors installed at the upper and lower parts of the main body of the furniture. Sliding opening and closing method of sliding open and close using a roller installed on the side is mainly used.

Recently, sliding doors of sliding doors that are easy to use, such as ease of opening and closing, are used more frequently than doors of door opening and closing doors that receive a lot of space constraints.

Furniture using such a slide door is provided with an upper roller and a lower roller using brackets at the top and bottom of the door, respectively, and an upper rail and a lower rail for guiding the left and right roller movements on the upper and lower surfaces of the furniture body, respectively. It consists of a structure that is installed.

At this time, the slide door can be opened or closed laterally by using the upper and lower rollers moving along the upper and lower rails of the furniture body.

In order to remove or put clothes on furniture, the user can grab the handle of the slide door by hand and pull it or push it to open and close the door.In the case of the existing slide door, the door may not be completely closed unless the door is pushed to the end when it is closed. Often, this causes a lot of inconvenience in terms of appearance, such as exposure of the contents in the furniture.

In addition, in the case of the existing slide door, if the user closes the door unknowingly or carelessly, the noise is not only closed and loud, but also causes damage or deformation of the door and furniture due to impact, etc. Has been called for.

In consideration of this point, recently, when a door is closed only to a certain position, a furniture having an automatic closing device for automatically closing the door and being completely closed has been widely used.

However, the furniture equipped with the existing automatic door closing device is inconvenient in terms of usability as follows.

For example, when the door is opened and closed, it often happens that the locking link of the bar in the roller assembly of the in door or the out door is inadvertently released from the switch in the automatic closing device.

In this case, after the operator pulls and fixes the switch by hand to the locking groove of the guide hole formed in the housing of the automatic closing device, there is a hassle and inconvenience in that the locking link of the bar can be caught by the switch.

That is, the switch should be retracted to the locking groove provided at the end of the guide hole to take a tilted position, and the switch should be returned to its original position by normally contacting the locking link of the bar with the switch of the tilted position at the locking groove. It is disadvantageous in terms of ease of use, such as not only troublesome work but also considerably inconvenient.

Accordingly, the present invention has been made in view of the above, when closing the door only to a certain position during opening and closing of the door to automatically close the door is pulled out completely, while the elastic jaw is particularly elastically deformable and recoverable By adopting a switch having a part, even when the locking link of the bar is separated from the switch, by simply pushing the door again, the locking mechanism of the new structure is automatically implemented so that the locking link can be caught by the switch. It is an object of the present invention to provide a furniture having a door automatic closing device that can improve the convenience of use, such as eliminating the hassle that the operator has to pull the switch by hand.

In addition, the present invention improves the locking structure between the switch and the locking link of the bar of the automatic closing device, so that the switch and the locking link can be easily hooked at the same time to prevent the separation from each other, stable opening and closing operation of the door Another object is to provide furniture with a door automatic closing device that can be made.

Furniture having a door automatic closing device provided by the present invention to achieve the above object has the following features.

Furniture of the present invention and the housing is installed on the rail side of the furniture, the interior of the housing is interlocked with the door when opening and closing the door and move back and forth when the door is opened and restored when the door is closed and can be locked and released with the door side A switch that moves the door to the closed position by using the locking jaw, and is installed inside the housing and one side is connected to the housing wall while the other side is connected to one side of the switch using the restoring force after expansion according to the switch movement Door closing function consisting of a damper for slowing down the overall speed of the switch, including a spring for pulling the switch and a door installed inside the housing and coupled to one side of the switch through the rod of the tip to move backward when the door is closed. It consists of a form that includes the device.

In particular, the locking step in the switch is formed integrally to the switch body through the fixed end of the rear end is composed of a free end having a locking end of the bent type, when the external force is applied downwards and the external force is released By allowing the spring action to rise again, when the locking link of the bar is separated from the switch, there is a feature that the locking link of the bar can be easily caught again by using the spring action of the switch.

Here, the locking jaw portion of the switch forms an inner surface in contact with the locking link of the bar in a rounded surface, and at the same time, the locking link caught on the locking jaw portion of the switch has a width smaller than that of the lower width. While it is preferable to form a round surface of the left and right sides of the width direction, it is possible to maintain a firm locking state between the switch and the locking link, and to prevent the departure.

In addition, the stop link is provided with a stopper which protrudes a predetermined length from one side in the width direction at the tip portion, and prevents the stop link from being separated upwards (inward and outward) in a state where the stopper is engaged by the switch. desirable.

Furniture having a door automatic closing device provided in the present invention has the following advantages.

First, when the user closes the door, the door can be automatically closed even if the user does not completely close the door. Therefore, the door can be easily opened and closed, and the door can be kept closed at all times. There is a good advantage.

Second, even when the locking link of the bar is separated from the switch during the door opening and closing operation, the locking link can be easily applied to the switch, thereby eliminating the trouble of the operator operating the switch.

Third, since the locking jaw of the switch and the locking link of the bar are hooked through the round contact surface, it is easy to enter the locking link and prevent the detachment, thereby ensuring stable opening and closing operation of the door.

Fourth, by forming a stopper on the engaging link of the bar provided in the in-door and the out-door, it can be prevented from being separated to the top in the state in which the engaging link is caught in the switch.

1a and 1b is a perspective view showing a door automatic closing device according to an embodiment of the present invention
Figure 2 is a perspective view showing a switch of the automatic door closing device according to an embodiment of the present invention
3A and 3B are perspective views illustrating a locking link of a bar engaged with a switch of an automatic door closing device according to an embodiment of the present invention;
4A and 4B are perspective views illustrating a locking structure between a switch and a locking link of a bar of the automatic door closing device according to an embodiment of the present invention;
5a to 5c are plan views showing a state in which the locking link of the bar is re-engaged after being separated from the switch in the automatic door closing device according to the embodiment of the present invention;
6a to 6c is a plan view showing a process when the door is opened as the operating state of the automatic door closing device according to an embodiment of the present invention
7a to 7c is a plan view showing a process when the door is closed as the operating state of the automatic door closing device according to an embodiment of the present invention

Hereinafter, the present invention will be described in detail with reference to the accompanying drawings.

1A and 1B are perspective views illustrating an automatic closing device of a door according to an embodiment of the present invention, and FIG. 2 is a perspective view illustrating a switch of the automatic closing device of a door according to an embodiment of the present invention.

As shown in FIGS. 1A and 1B and FIG. 2, a sliding door of a sliding type is installed in the furniture, and the door is opened and closed while being guided by a rail installed in the furniture main body.

And, at one end of the rail of the furniture body is provided with a door automatic closing device that performs a function that automatically closes the door completely when closing the door.

The door automatic closing device is interlocked with the opening / closing operation of the door, and when the door comes to a closed position to some extent, the door is forcibly pulled out to be completely closed and serves to reduce the closing speed.

For example, the door automatic closing device is pulled out by the door in the case of the door opening and locked in the locked state, and the latch is released from the door side. Is returned and unlocked at the same time as the door is pulled through the door.

Accordingly, even if the user does not completely close the door, the door can be automatically closed.

To this end, the door automatic closing device is basically a switch 12 moving while interlocking with the door opening and closing, a spring 13 for providing a return force to the switch 12, a damper 14 for gradually controlling the closing speed of the door. And a housing 10 for receiving the switch 12, the spring 13, and the damper 14.

The housing 10 has a long rectangular box shape that can be disassembled and assembled. The housing 10 is installed using an auxiliary rail (not shown) at one end of the rail in the furniture main body, and switches 12 are provided on both side walls of the interior. Guide hole 19 is provided to guide the movement trajectory.

At this time, the guide hole 19 is formed side by side along the longitudinal direction of the housing has a curved section extending downward from the housing front end portion, the end of the curved section of the guide hole 19 is a guide hole It is composed of a locking groove 20 having an angle of about 90 ° with respect to (19) is to be caught while the front guide projection (21a) of the switch 12 is seated there.

Accordingly, the switch 12 is moved forward along the guide hole 19 to reach the curved section is bent downward, and when the switch 12 is inclined position, the door and the switch ( 12) can be released.

At this time, the end of the curved section of the guide hole 19 is provided with a locking groove 20, the switch 12 is inclined as the front guide protrusion 21a of the switch 12 is caught in the locking groove 20 at this time The locking state of the posture can be maintained.

The switch 12 is in selective contact with the door side, i.e. with a locking link (reference 16 in FIGS. 3A and 3B) of a bar (reference 15 in FIGS. 3A and 3B) in a roller assembly (not shown) of the door. A member that moves back and forth with the door while being in selective contact.

The switch 12 has a block shape having a predetermined shape, and a total of four guide protrusions 21a and 21b are formed to protrude horizontally on each side, so that the guide protrusions 21a and (at this time) 21b) is inserted into the guide hole 19 in the housing 10 to receive the slide guide.

In addition, the front and rear two engaging jaw portions 11a and 11b contacting the engaging links 16 in the bar 15 of the door-side roller assembly are formed at the upper end of the switch 12 so as to face each other. The locking link 16 of the bar 15 is located in a space formed between the two locking jaw portions 11a and 11b, and tilts the locking jaw portion 11a located at the front side, or is located at the rear side. It can be pulled back through the contact with the locking jaw (11b).

In particular, the front and rear locking jaw portion (11a) of the front and rear two locking jaw portion (11a, 11b) in the switch 12 is made of a form that can act as a spring capable of elastic deformation.

For example, the locking step (11a) is composed of a fixed end (11a-1) integrally formed on the switch body and a free end (11a-3) extending inclined a predetermined length from the fixed end (11a-1) By using the locking end (11a-2) is formed to be bent inward from the front end of the free end (11a-3) is to be able to contact the door-side locking link (16).

Accordingly, the engaging jaw portion 11a may move downward when the external force is applied to the free end 11a-3 (to enter the inside), and when the external force is released, to rise again (outward) the spring action. It becomes possible.

For example, when the door side engaging link 16 is pressed while touching the inclined outer surface of the free end 11a-3, the free end 11a-3 is pressed inward, and the door side latch continues. When the link 16 moves further to move out of the free end 11a-3, the free end 11a-3 exerts its own elastic restoring force and returns to the outside to retake the engaging position on the locking link 16 again. Will be.

In addition, the rear locking jaw portion 11b of the switch 12 also has a form capable of exhibiting excellent contact and locking performance with the locking link 16.

To this end, the inner surface of the locking jaw (11b) in contact with the engaging link 16 is made of a concave round surface (17a), the end of the locking jaw (11b) naturally made due to this round surface (17a) Since the protruding portion and the protruding portion of the tip of the catching link 16 made by the round surface 17b of the catching link 16 to be described later may have an interference structure with each other, the catching protrusion 11b of the switch 12 is It is possible to maintain a firm locking state with the engaging link 16 side, so that the departure can be prevented.

In addition, the middle of the rear end portion of the switch 12 is provided with a pin groove 22 having a one-sided shape while penetrating horizontally in the horizontal direction of the switch body, and a spring hole 23 is provided immediately below the switch body. .

Accordingly, the pin 24 formed in the rod of the damper 14 is fitted into the pin groove 22, and one end of the spring 13 is fitted into the spring hole 23.

In this way, the switch 12 may have an interlocking relationship with the damper 14 and the spring 13, so that after the forward position, the switch 12 is always provided with the power to return to the rear side, and also the speed at the time of return Can be controlled slowly.

At this time, the damper 14 side and the switch 12 side are connected by the rotatable coupling structure between the pin 24 and the pin groove 22, so that the switch 12 is the pin 24 and the pin groove 22. Rotation of the joint portion of the liver to the central axis can be smoothly flipped.

Such a switch 12 is pulled out by the door while moving back and forth with the door along the guide hole 19 in a state accommodated inside the housing 10 except for the locking jaws 11a and 11b at the upper end, or The door is pulled back in while the posture is restored by the door moving in the closing direction.

For example, when the door 12 is opened, the switch 12 moves forward together with the door by the locking action between the locking jaws 11a and 11b and the locking link 16, and then the guide hole 19 In the engaging groove 20 in the curved section of the) through the guide pin (21a) and at the same time the posture is bent and locked can be released from the door side.

In addition, when the door is closed, the door may be caught by the door-side locking link 16 while being removed from the locking groove 20 by the contact of the door-side locking link 16 and the posture is restored horizontally and unlocked. As a result, the door may be automatically closed while being pulled backward by the locking action between the locking jaw portion 11a of the switch 12 and the door-side locking link 16.

The spring 13 is a means for providing a return force to the switch 12, one end of which is caught in the spring hole 23 of the switch 12 while being positioned side by side just below the position where the damper 14 is installed The other end is fixed to the rear wall of the housing 10 to serve to always pull the switch 12 to the rear.

That is, the spring 13 is expanded as the switch 12 moves forward, and then exerts its own restoring force in the unlocked state of the switch 12 to pull the switch 12 backward.

The damper 14 is a means for slowing the closing speed of the entire door including the switch 12 and the roller assembly.

To this end, the damper 14 is installed side by side inside the housing 10, the rod is provided with a pin 24 so that the pin groove 22 of the switch 12 using the pin 24 at this time Connected in the form of

Accordingly, the door, which is likely to be pulled back sharply by the switch 12 and the spring 13, can be smoothly closed in the almost closed position while the speed thereof is reduced by the damper 14.

Here, the damper 14 can apply a well-known thing, such as gas type or air type, and it is preferable to use the dual type thing.

3A and 3B are perspective views illustrating a locking link of a bar engaged with a switch of an automatic door closing device according to an embodiment of the present invention.

As shown in Figures 3a and 3b, the bar 15 is a member integrally mounted to the roller assembly for guiding the opening and closing of the door, the switch in the automatic closing device (reference numeral 12 in Figs. 1 and 2). In contact with and pulls out the switch 12, and flips the switch 12, and serves to allow the entire door to be pulled through the engagement with the switch 12.

Such a bar 15 is integrally formed with a catching link 16 in contact with the switch 12 at the tip, wherein the catching link 16 has a predetermined length in parallel with the bar body in the case of the in door (FIG. 3A). It is formed in a form extending vertically downward, in the case of the outdoor (Fig. 3b) is formed in a form extending a predetermined length by 90 ° with respect to the bar body.

In particular, the engaging link 16 of the bar 15 is composed of a round surface 17b in which the left and right sides of the link width direction are concave, and the upper width W1 is relatively narrow compared to the lower width W2. Accordingly, the locking link 16 can have a locking structure with the locking jaw portion 11b through its lower width W2 in a state where the locking link 16 is locked to the switch 12 side. Departure from the (12) side can be prevented.

In addition, the locking link 16 is provided with a stopper 18 is formed to protrude a predetermined length from one side in the width direction from the tip portion, the stopper 18 at this time is the locking link 16 is caught on the switch 12 It serves to prevent them from escaping upwards (or downwards).

4A and 4B are perspective views illustrating a locking structure between a switch and a locking link of a bar of the automatic door closing device according to an embodiment of the present invention.

As shown in Figs. 4A and 4B, the bar 15 mounted on the in door (Fig. 4A) and the out door (Fig. 4B) is connected to the switch 12 of the automatic closing device through the engaging link 16 at its tip. It is caught in a state that is located in the front and rear locking step (11a, 11b).

At this time, the locking link 16 is caught in a state where the wide bottom width is positioned inward in the locking jaw portions 11a and 11b, and moves together with the locking jaw portions 11a and 11b while moving the door. After the switch 12 is pulled out, it is turned over, and the contact with the locking jaw portions 11a and 11b restores the folded switch 12 and the hook 12 can be caught and moved together.

5A to 5C are plan views illustrating a state in which the locking link of the bar is caught again after being separated from the switch in the automatic door closing device according to the embodiment of the present invention.

As shown in FIGS. 5A and 5C, there may occur a situation in which the door side engaging link 16 is unintentionally released from the switch 12 of the automatic closing device when the door is opened or closed, that is, the engaging link 16 is switched. A situation may arise in which the engagement with the switch 12 is released by escaping from the locking jaw portions 11a and 11b of the 12, and when the door is lightly pushed toward the switch 12, the locking link 16 is easily switched ( 12) can be dialed again.

For example, when the locking link 16 exiting from the locking jaw portion 11a, 11b of the switch 12 is pushed toward the elastic locking jaw portion 11a, the locking link 16 is the locking jaw portion. While moving (11a) while pressing inward, the locking jaw portion (11a) at this time is easily pressed inward through its own elastic deformation characteristics.

Subsequently, when the locking link 16 is caught by the rear locking jaw portion 11b past the locking jaw portion 11a, the front locking jaw portion 11a that has been pressed at the same time recovers elasticity and restores its original state. Therefore, the locking link 16 can be caught in the state accommodated in the locking step (11a, 11b) of the switch 12 as originally.

As such, when the locking link 16 is unintentionally released from the switch 12 during the opening and closing of the door, the locking link 16 can be easily carried out without the troublesome labor such as when the operator pulls the switch to the guide hole by hand. ) Can be put on the switch 12 again, thereby increasing the convenience of use.

Therefore, the operation state of the automatic door closing device in the furniture having the automatic door closing device configured as described above is as follows.

6A to 6C are plan views illustrating a process of opening a door as a door automatic closing device operating state according to an embodiment of the present invention.

6A to 6C, when the user opens the door (not shown) or the door (not shown), when the user pulls the door to one side, the door is opened while moving along the rail using a roller assembly (not shown). In this case, since the engaging link 16 of the bar 15 in the roller assembly hangs out the engaging jaws 11a and 11b of the switch 12, the switch 12 also moves forward with the door. .

Subsequently, the switch 12 drawn together with the door is rolled up while the guide protrusion 21a is caught by the catching groove 20 in the curved section of the guide hole 19, and the posture is inclined to be inclined. 12) stays in place while locked.

From this time, the locking state of the locking link 16 is released so that only the door can be opened.

7A to 7C are plan views illustrating a process of closing a door as a door automatic closing device operating state according to an embodiment of the present invention.

As shown in Figs. 7A to 7C, when closing the in door or the out door, when the user pushes the door backward, the back latch of the switch 12 in which the catch link 16 of the bar 15 in the roller assembly is flipped over is closed. The jaw portion 11b is struck, and at the same time, the switch 12 is pulled backward by the force of the spring 13 while the posture is restored to the horizontal state, and the front locking jaw portion 11a is continuously engaged with the locking link 16 ) Is in contact with the door side.

Therefore, the door is pulled to the rear side with the help of the switch 12, so that the user can be completely closed by the automatic closing device even when the user does not close the door to the end, thereby obtaining convenience when closing the door.

As such, even when the door of the furniture is not inadvertently or inadvertently closed by the user, the door can be completely closed by the automatic closing device. In particular, the door-side locking link is switched during the opening and closing of the door. Since the locking link can be easily hooked again to the switch side even if it is disengaged from the vehicle, convenience in connection with the door opening and closing operation can be achieved, and convenience of use can be increased.

10: housing 11a, 11b: locking jaw portion
12: switch 13: spring
14 damper 15 bar
16: engaging link 17a, 17b: round surface
18: stopper 19: guide hole
20: locking groove 21a, 21b: guide projection
22: pin groove 23: spring hole
24: pin

Claims (4)

A housing 10 installed on the rail side of the furniture;
It is installed inside the housing 10 and moves back and forth while interlocking with the door when the door is opened and closed, while being retracted when the door is opened and restored when the door is closed, it uses the locking jaws 11a and 11b that can be locked and released from the door. Switch 12 to move the door to the closed position;
The spring 13 is installed inside the housing 10, one side is connected to the housing wall surface, the other side is connected to one side of the switch 12, the spring 13 for pulling the switch 12 by using the restoring force after expansion according to the switch movement );
A damper (14) installed inside the housing (10) and coupled to one side of the switch (12) through a rod of the tip to slow down the speed of the entire switch including a door moving backward when the door is closed;
Including;
The locking jaw portion 11a of the switch 12 is integrally formed on the switch body through the fixed end 11a-1 of the rear end, and the free end 11a-3 having the locking end 11a-2 of the bent shape. ), The furniture is equipped with a door automatic closing device characterized in that the spring acts to move down when the external force is applied and to come back up when the external force is released.
The locking jaw portion 11b of the switch 12 has a rounded surface 17a having an inner surface in contact with the locking link 16 of the bar 15, and thus a rigid locking state with the locking link side. Furniture can be maintained with a door automatic closing device, characterized in that the departure is to be prevented.
The method of claim 1, wherein the engaging link (16) caught by the engaging jaw portions (11a, 11b) of the switch 12 has a relatively wider width at the top than the bottom width at the same time the left and right sides of the width direction round ( 17b), the furniture having an automatic door closing device, characterized in that the departure from the switch side can be prevented.
The stopper (16) according to claim 2, wherein the stopper link (16) includes a stopper (18) protruding a predetermined length from one side in the width direction at the tip, and the stopper (16) is connected to the switch (12) by the stopper (18). Furniture with an automatic door closing device, characterized in that it can be prevented from being separated to the upper part in the jammed state.

Images