KR101392453B1 - Closing and opening device for stepless sliding door - Google Patents

Abstract

The present invention relates to an opening/closing device for a stepless sliding door in which two adjacent doors abuts against each other with no stepped portion (stepless) when the door is closed to provide a clean exterior, installation and maintenance thereof are easy, the door does not occupy a wide installation space, both sides of the door are evenly supported, and the device can be applied to plural doors. The opening/closing device includes a frame having two straight rails arranged in parallel with each other in a longitudinal direction; an indoor moving unit having an indoor roller sliding along any one of the two rails, and an indoor bracket connecting the indoor roller and an indoor door; an outdoor moving unit having an outdoor roller sliding along the other of the two rails, and an outdoor bracket connecting the outdoor roller and an outdoor door; and a forward/reverse member moving forward the outdoor bracket according to the movement of the indoor or outdoor moving unit to move the indoor and outdoor doors in an overlapping state, or moving reverse the indoor and outdoor doors to arrange the doors in parallel with each other without forming a stepped portion therebetween.

Description

[0001] Closing and opening device for stepless sliding door [0002]

The present invention relates to a sliding door opening / closing apparatus which is opened and closed by a sliding door. More specifically, the present invention relates to an opening / closing apparatus for a sliding door, The present invention relates to a step-less sliding door opening and closing apparatus which is simple in maintenance, occupies a small space for installation, supports both sides of the door in a balanced manner, and can realize a stepless structure in two or more doors.

2. Description of the Related Art [0002] In general, a sliding door used for a cabinet, a bookcase, a shoe box, a built-in cabinet, and the like is slidably opened and closed.

This sliding door, which is widely used, is a sliding door that is opened and closed at both sides of the door, which damages the aesthetics of the two doors. When decorating the door surface, the decoration is cut off by the step between the two doors, .

Registration No. 0762984 entitled "Bathroom Cabinet with Slide Door" and Registered Utility Model No. 0411166 "Sliding Door Furniture Variable Device" for solving the problem caused by the step difference in the sliding door as described above The present invention proposes a step-less sliding door and its opening / closing device in which both doors are in a closed state without a step.

Figs. 1A and 1B are a perspective view and a plan view from above of the registered patent No. 0762984 entitled "Bathroom Container with Slide Door ".

Referring to FIG. 1, the '0762984' designates a long guide groove 18 formed in the upper and lower plates 8 of the cabinet, and a short guide groove 20 formed in parallel with the long guide groove 18 The first curved groove 22 and the second curved groove 26 are formed at both sides of the long guide groove 18 and the short guide groove 20 and the doors 74 and 76 The slider 16 to be connected is moved along the guide grooves 18 and 20 and the curved grooves 22 and 26 so as to open and close the two doors so that the two doors coincide with each other in the closed state.

Problems of the above-mentioned Japanese Patent No. 0762984 entitled "Bathroom Container with Slide Door"

First, much space is required for the rails (guide grooves 18, 20 and curved grooves 22, 26). That is, since the curved grooves 22, 26 bent backward are provided at both sides of the linear guide grooves 18, 20, a space corresponding to the width of the curved grooves 22, 26 is required.

Second, a step-less structure with no step is available only on two doors, and it is difficult to implement on three doors or more. Due to the curved grooves 22 and 26, the doors 74 and 76 can be moved only in one direction (moved in one direction but not in the opposite direction) In the above, it is impossible to implement a step-less structure.

Thirdly, since the door is biased to one side and supported by the slider 16, the load of the door is shifted to one side, and accordingly, the door is struck to one side with time, and when the door is struck, There is a problem. The slider 16 is connected to the outer edge of the door since the slider 16 must be disposed in the curved groove 22 in order to have a step-less structure in the closed state of the two doors 74 and 76, Since the load of the door is supported, the above problem arises.

Fourth, when the doors 74 and 76 are opened, there is an inconvenience that the inside of the door must be pulled forward to be positioned forward of the other doors and then pushed to the side. Since the inner surfaces of the two doors 74 and 76 face each other and interfere with each other, it is necessary to push the door toward the other door so that the door is not pushed.

Fifth, due to the structure in which the door is pulled forward after being pulled forward as described above, when the inner lower portion of the door is held by the hand and pulled forward, when the door is pushed to the side, the hand may be caught by the other door and injured.

Sixth, there is a limitation on the maximum opening amount. The slider 16 is structured so as to be clogged by the slider of the other door when the door is pushed to the other door side so that the door can not be moved to the other door end, Since the slider 16 supports more than half of the left and right length of the door so as to stably support the load of the door so that one side of the door is not sagged, the two doors are not completely opened because the two sliders come into contact when the door is opened. Also, it is structurally impossible to move one door to the other door side, but to slightly open the two doors to the inside to open it.

Seventh, maintenance is difficult. Only the slider 16 to which the doors 74 and 76 and the door are connected can be easily separated from the upper and lower plates 8. 10 provided with the guide grooves 18 and 20 and the curved grooves 22 and 26, It can be removed only after it is disassembled. Therefore, it takes a lot of time for maintenance and maintenance work. After the guide grooves 18 and 20 are provided, the slider 16 is pushed into the guide grooves 18 and 20 and the curved grooves 22 and 26 are mounted on both sides of the guide grooves 18 and 20, The slider 16 can be detached only after the side plate and the curved grooves 22 and 26 are removed at the time of maintenance work, thereby increasing the amount of maintenance work.

SUMMARY OF THE INVENTION The present invention has been devised to solve the problem of the conventional opening and closing apparatus of a step-less sliding door,

It is possible to open the doors as far as possible physically as much as possible, and it is possible to open the doors as far as possible physically, It is an object of the present invention to provide a step-and-slide sliding door opening / closing device which is easy to install and maintain in a storage room without risk of injuring the user's hand in the opening and closing process since the door can be prevented from being damaged and the door can be pushed to the side without pulling forward. .

In order to achieve the above object, according to the present invention, there is provided an apparatus for opening and closing a step-

A frame having two straight rails arranged in a front-to-rear direction;

An in-roller moving unit including an in-roller for sliding along one of the two rails; and an in-bracket connected to the in-roller;

An out roller that slides along one of the two rails, and an outboard moving unit that includes an out bracket connected to the out roller and the out roller;

Wherein the outdoor bracket is advanced by the movement of the indoor moving unit or the outdoor moving unit so that the indoor unit and the outdoor unit are stacked forward and backward or the rear unit is moved backward so that the indoor unit and the outdoor unit are arranged side by side, Means.

A guide bar connected to the outdoor or indoor,

And an auxiliary roller connected to the indoor or outdoor and moving along the guide bar,

Further comprising a forward / backward advancing means for assisting the front and rear of the outdoor,

The forward /

A body on which the out roller is mounted,

A fixed block fixedly coupled to the upper portion of the body,

A moving block connected to the out bracket and moved in the forward and backward directions along the fixed block,

And a backward spring for providing an elastic force to cause the out bracket to be retracted toward the body,

Wherein the frame, the indoor unit moving unit, the outdoor unit moving unit, and the forward / backward unit are respectively provided at the upper and lower portions of the indoor unit and the outdoor unit,

The upper frame is provided on the upper surface of the rail to bear the load, and the lower frame is provided on the lower surface of the rail to assist the slide movement,

The lower indoor unit and the outdoor unit include a rotary plate on one side of which the in roller or the out roller is mounted and which is rotatable about a central axis and a lower plate on which one side of the rotary plate is raised and lowered so that the in- And a lifting spring for providing an elastic force.

The opening and closing device of the step-less sliding door according to the present invention having the above-

In order to realize the step-less structure, it uses a straight rail without curves,

Since the movable units of the respective doors do not interfere with each other, it is possible to realize a step-less structure in a three-door or two-door structure of two or more doors,

Since the door is completely superimposed on the other door and can be moved left and right along the ray in the collapsed state, the door can be opened to the maximum physically possible range, the position of the open space can be arbitrarily adjusted,

Since the front door disposed at the front when the two doors are covered does not contact the front surface of the indoor door disposed at the rear, the door is not damaged in the opening and closing process,

There is no risk of injury to the hand during opening and closing because it is opened and closed just by pushing the door to the side (left and right)

The door combined with the mobile unit can be easily mounted on and detached from the frame formed with the rail, so that the installation is easy and maintenance is easy

It is an opening / closing device for a step-less sliding door and is an extremely useful invention for industrial development.

1A and 1B are a perspective view and a plan view of a sliding door opening / closing apparatus according to a related art.
FIGS. 2A and 2B are a front perspective view and a rear perspective view, respectively, of a sliding-type sliding door using an opening and closing device according to the present invention;
3 is an exploded perspective view of the opening and closing device of the step-less sliding door according to the present invention.
FIG. 4 is a view showing a process of opening and closing a step-less sliding door using the opening and closing device according to the present invention.

Hereinafter, the opening and closing device of the step-less sliding door according to the present invention will be described more specifically with reference to the drawings.

Before describing the present invention in more detail,

While the present invention has been described in connection with certain embodiments, it is obvious that the invention is not limited to the disclosed embodiments, but, on the contrary, is intended to cover various modifications and equivalent arrangements included within the spirit and scope of the invention. It is to be understood, however, that the invention is not intended to be limited to the particular forms disclosed, but on the contrary, is intended to cover all modifications, equivalents, and alternatives falling within the spirit and scope of the invention.

In the drawings, the same reference numerals are used for the same reference numerals, and in particular, the numerals of the tens and the digits of the digits, the digits of the tens, the digits of the digits and the alphabets are the same, Members referred to by reference numerals can be identified as members corresponding to these standards.

In the drawings, the components are expressed by exaggeratingly larger (or thicker) or smaller (or thinner) in size or thickness in consideration of the convenience of understanding, etc. However, It should not be.

The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. The singular expressions include plural expressions unless the context clearly dictates otherwise. In the present application, the term " comprising " or " consisting of ", or the like, refers to the presence of a feature, a number, a step, an operation, an element, a component, But do not preclude the presence or addition of one or more other features, integers, steps, operations, components, parts, or combinations thereof.

Unless defined otherwise, all terms used herein, including technical or scientific terms, have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. Terms such as those defined in commonly used dictionaries are to be interpreted as having a meaning consistent with the contextual meaning of the related art and are to be interpreted as either ideal or overly formal in the sense of the present application Do not.

2 to 4, the opening and closing device of the step-less sliding door according to the present invention includes a frame 10, an indoor moving unit 20, an outdoor moving unit 30, a forward / backward unit 40, And is roughly divided into constituent elements of the processing means 50.

For reference, reference numerals used in describing the present invention are not related to reference numerals used in the prior art of FIG.

First, the sliding door is referred to as an indoor D 1, and the door disposed in the front is referred to as an outdoor D 2 when the sliding door is folded back and forth.

The inclined surfaces d1 and d2 having an angle of 45 degrees are formed inside the indoor unit D1 and the outdoor unit D2 facing each other in the closed state so that the indoor unit D1 moves toward the outdoor unit D2, The inner side of the indoor D2 and the outdoor D2 collides with each other and does not interfere with the movement so that the outdoor D2 naturally rides on the inclined surfaces d1 and d2, So as to be disposed forward.

The door is shown with two doors and the inclined surfaces d1 and d2 are formed only on the inner side facing the indoor unit D1 and the outdoor unit D2. (d1, d2) will be formed.

The frame 10 provides rails 11 and 13 for sliding movement of the doors D1 and D2 and supports the loads of the doors D1 and D2.

In a furniture such as a cabinet, the frame 10 may be used as a top plate and a bottom plate as a component of a cabinet.

The frame 10 has an upper frame 10 disposed at an upper portion of the doors D1 and D2 and a lower frame 10A disposed at a lower portion of the frame 10. The loads of the doors D1 and D2 are transmitted to the upper frame 10, Or the lower frame 10A may be supported. The figure shows that the upper frame 10 is supported.

For reference, the upper frame 10 and the lower frame 10A, which are arranged in the upper and lower portions of the door, respectively, as the frames, are divided by adding 'A' A 'is added to the constituent elements disposed in the upper part of the main body (hereinafter referred to as " A "), .

Two rails (hereinafter referred to as 'in rails 11' and 'out rails 13') are arranged in the frame 10 so as to be slidable forward and backward so that the indoor D1 and the outdoor D2 can slide respectively As shown in FIG. Of course, this means that two rails are provided on the basis of two doors, and in the case of three doors or more, there are provided the number of rails corresponding to the number of doors, so that all the doors can be stacked back and forth so that the opening amount can be maximized It is possible. For example, if you have two rails in three doors (one, two, and three doors in turn), each door can be placed in front of (or behind) another door that does not share a rail, The maximum opening amount corresponds to the area of one door. However, when three rails are to be obtained, each door may be overlapped with any other door, and all three doors are overlapped The maximum opening amount is increased and the position of the open space can be adjusted.

In addition, another rail (hereinafter referred to as " support rail 15 ") is provided linearly on the rear side of the in-rail 11 and the out-rail 13 arranged side by side. The support rail 15 reinforces the supporting force of the forward / rearward means 40 when the forward / rearward means 40 is operated so that the outdoor D2 moves back and forth.

It is preferable that the upper frame 10 and the lower frame 10A have the same structure, that is, the upper frame 10 or the lower frame 10A according to their arrangement positions (i.e., upper and lower). The frame 10 (the upper frame 10 in the figure) supporting the load of the doors D1 and D2 is provided with the rails 11 and 13 on the upper surface thereof and a frame 10 (The lower frame 10A in the drawing) is provided on the lower surface of the rails 11A and 13A to prevent foreign matter from accumulating on the rails 11A and 13A.

The indoor unit moving unit 20 and the outdoor unit moving unit 30 slide the indoor unit D1 and the outdoor unit D2 along the in-rail 11 and the out-rail unit 13, respectively. The indoor moving unit 20 and the outdoor moving unit 30 are also disposed at the upper and lower portions of the door, respectively.

The upper indoor moving unit 20 (hereinafter, referred to as 'upper indoor moving unit 20') supporting the load of the door is mounted on an in-rail 11 disposed in front of two rails of the upper frame 10, And an in bracket 27 to which the roller 21 is rotatably engaged and on which the inlet D1 is mounted.

The outdoor moving unit 30 (hereinafter referred to as "upper outdoor moving unit 30") at the upper portion supporting the load of the door is connected to an out-rail 13 disposed rearwardly of two rails of the upper frame 10 And an outboard bracket 37 connected to the out roller 33 through the forward and rearward means 40. The outboard 33 is connected to the outboard roller D3.

The lower indoor moving unit 20A (hereinafter referred to as a lower indoor moving unit 20A) and the outdoor moving unit 30 (hereinafter referred to as a lower outdoor moving unit 30A) 'Further includes rotating plates 28 and 38 and lift springs 29 and 39 in addition to the upper indoor moving unit 20 and the upper outdoor moving unit 30.

The central portion of the rotary plates 28 and 38 is rotatably hinged to the bracket 27A or the body 41A of the forward and rearward means 40A and the in roller 21A or the out roller And the other side is connected to the bracket 27A or the body 41A of the forward and rearward means 40A by the lifting springs 29 and 39. [

The rotary plates 28 and 38 and the lifting springs 29 and 39 can be easily installed on the rails of the frame 10 and can be easily separated from the rail 10 by the moving units 20 and 30 connected to the doors D1 and D2, Thereby facilitating maintenance.

More specifically, after the rollers 21 and 33 of the upper mobile units 20 and 30 are seated on the rails 11 and 13 of the upper frame 10 and engaged, the elasticity of the lift springs 29 and 39 The lower mobile units 20A and 30A can be moved to the lower frame 10A and the lower mobile units 20A and 30A can be moved to the lower frame 10A when the other side of the rotating plates 28 and 38 is raised, The rotary plates 28 and 38 are rotated by the lifting springs 29 and 38 when the force of lifting the other side of the rotary plates 28 and 38 after the slide is moved by the rails 11A and 13A is canceled The rollers 21A and 33A provided on one side are seated on the rails 11A and 13A and are coupled to each other by the elastic force of the elastic members 39 and 39. When the door is separated, It is easily separated.

That is, in the present invention, the maintenance operation can be performed after the door and the mobile unit connected to the door are easily separated from the frame 10 during maintenance, but in the conventional art, only the door (including the mobile unit connected thereto) It can not be easily separated from the frame 10 and the components of the furniture to which the door is mounted, such as the frame 10 and the side plate, can be disassembled to separate the door as a whole.

The forward / backward means 40 moves the outdoor D2 connected to the outdoor mobile unit 30 back and forth.

The forward and backward means 40 includes a body 41, a fixed block 43, a moving block 45 and a reverse spring 47, and is provided at the upper and lower portions of the door, respectively.

Hereinafter, the forward and backward means 40 provided on the door will be used as a reference.

A rotation plate 38 on which an out roller 33A is mounted is rotatably engaged with the out roller 33 or a lower roller is provided on the front side of the body 41. On the rear side, 35A) is rotatably coupled.

The fixed block 43 is fixedly coupled to the upper surface of the body 41, and slide grooves 431 are formed on both upper sides of the fixed block 43 in the forward and backward directions.

The movable block 45 is formed with a slide protrusion 451 through which the slide groove 431 is slidably coupled to both sides of the lower portion and connected to the out bracket 37 through a bearing member 49, 43 to move the outdoor D2 forward and backward.

The bearing member (49) allows the out bracket (37) to rotate with respect to the moving block (45). When the outdoor D2 is disposed in front of the indoor D1, the outdoor D2 is inclined forward because the inside of the outdoor D2 is slightly moved toward the front and moved to the front of the indoor D1. The bearing member 49 allows the outdoor D2 to tilt with respect to the travel block 45 without load (interference).

The backward spring 47 connects the body 41 and the outer bracket 37 in the forward and backward directions to provide an elastic force to move the advanced outdoor D2 backward. That is, when the outdoor D2 is disposed in front of the indoor D1, the backward spring 47 is stretched and an elastic force for returning is applied. When the outdoor D2 is out of the front of the indoor D1, The outdoor D2 is pulled backward so that the outdoor D2 and the indoor D2 are arranged in a planar manner in line with each other without step differences.

The forward and backward advancing means 50 assists the forward and backward movement of the outdoor D2 and when the outdoor D2 is disposed to move forward of the indoor D1 or returns from the front of the indoor to the outdoor D2 ) Is brought into contact with the front surface of the indoor unit (D1) to prevent damage.

The forward and backward advancing means 50 are also preferably provided on the upper and lower portions of the door, respectively.

The forward and backward advancement means 50 includes a guide bar 51 for connecting the two out brackets 37 provided on both sides of the outdoor D2 and a guide bar 51 for connecting the two outboard brackets And an auxiliary roller 53 provided on the bracket 27 and moving along the guide bar 51.

The inner side of the guide bar 51, that is, the inner side adjacent to the indoor unit D1 in the closed state, has an inclined structure.

When the outdoor D2 is pushed toward the indoor D1 or the indoor D1 is pushed toward the outdoor D2 the inclined surfaces d1 and d2 of the indoor D2 and the indoor D2 are in contact with each other, The door D2 moves toward the front side of the indoor D1 and the outdoor D2 moves toward the front side of the indoor D1 while the auxiliary roller 53 moves along the inclined portion of the guide bar 51 So that the outdoor D2 is moved to the front side of the indoor D1 in a state in which the outdoor D2 and the indoor D1 are not in contact with each other.

While the present invention has been described in connection with what is presently considered to be the preferred embodiments, it is to be understood that the invention is not limited to the disclosed embodiments, but, on the contrary, And should be construed as falling within the scope of protection of the present invention.

10: Frame 20: Indoor mobile unit
30: outdoor mobile unit 40: forward / backward means
50: Forward and backward progressive means

Claims (4)

A frame having two straight rails arranged in a front-to-rear direction;
An in-roller moving unit including an in-roller for sliding along one of the two rails; and an in-bracket connected to the in-roller;

An out roller that slides along one of the two rails, and an outboard moving unit that includes an out bracket connected to the out roller and the out roller;
A body on which the out roller is mounted,
A fixed block fixedly coupled to the upper portion of the body,
And a moving block connected to the out bracket and moved in the forward and backward directions along the fixed block,
Wherein the outdoor bracket is advanced by the movement of the indoor moving unit or the outdoor moving unit so that the indoor unit and the outdoor unit are stacked forward and backward or the rear unit is moved backward so that the indoor unit and the outdoor unit are arranged side by side, Way;
And an opening / closing device for the step-less sliding door. The method according to claim 1,
A guide bar connected to the outdoor or indoor,
And an auxiliary roller connected to the indoor or outdoor and moving along the guide bar,
Further comprising a forward / backward advancing means for supporting the forward / backward movement of the outdoor. The method according to claim 1,
Wherein the forward / backward means further comprises a backward spring for providing an elastic force to move the out bracket backward to the body side. 4. The method according to any one of claims 1 to 3,
Wherein the frame, the indoor unit moving unit, the outdoor unit moving unit, and the forward / backward unit are respectively provided at the upper and lower portions of the indoor unit and the outdoor unit,
The upper frame is provided on the upper surface of the rail to bear the load, and the lower frame is provided on the lower surface of the rail to assist the slide movement,
The lower indoor unit and the outdoor unit include a rotary plate on one side of which the in roller or the out roller is mounted and which is rotatable about a central axis and a lower plate on which one side of the rotary plate is raised and lowered so that the in- Further comprising a lift spring for providing an elastic force.

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