KR20210019286A - Sliding door for storage - Google Patents

Abstract

The present invention relates to a sliding door for a cabinet, which allows a corner connector for connecting the frames of a door to each other at right angles and a roller bracket equipped with a roller for guiding the opening and closing of the door in a sliding manner to be more strongly coupled to each other, thereby increasing safety. To achieve the above purpose, the sliding door for a cabinet comprises: the corner connector for connecting the frames of the door to each other at right angles; and the roller bracket coupled to the rear surface of a body portion of the corner connector. The corner connector has a fastening hole drilled in an end of one side of the body portion to which no frame is coupled. The roller bracket includes: a mounting portion contacting the rear surface of the body portion; a connection portion bent rearward from the mounting portion, and provided with a roller; and a coupling portion protruding forward from the mounting portion or the connection portion to cover the fastening hole, connected thereto, and having a coupling hole corresponding to the fastening hole. A bolt is fitted into the coupling hole of the coupling portion to be coupled to the fastening hole of the corner connector so that the corner connector and the roller bracket are coupled to each other.

Description

Sliding door for sliding cabinet {SLIDING DOOR FOR STORAGE}

The present invention relates to a sliding door for a sliding cabinet that can increase safety by more firmly coupling a corner connector connecting the frames of the door at a right angle and a roller bracket equipped with a roller guiding the slide opening and closing of the door.

In general, a storage cabinet installed in a bathroom is configured such that a flat plate frame is cut into a predetermined dimension, and a partition is installed in the interior space to store washbasins, towels, and tissues.

Such a storage cabinet is installed with a door for concealing the interior on the front side in various opening structures, and is generally divided into an opening type storage cabinet and a sliding type storage cabinet according to the opening and closing method of the door.

In recent years, it is preferred to install a sliding cabinet because it is not necessary to separately secure the front, rear, left and right spaces required for door opening and closing.

The sliding door for the sliding cabinet uses a corner connector that connects the frames at right angles to assemble the frames in a square shape, and a front plate such as a mirror is mounted on the assembled frame,

Roller brackets with rollers are coupled to the rear of the door and, more precisely, to the rear of the corner connector for sliding and closing of the door, and the rollers are slidably coupled to rails provided on the upper and lower plates of the cabinet body.

As can be seen in Registration Patent No. 10-1756139, the conventional roller bracket has a'b' or'c' shape, and the front mounting part is coupled to the rear of the corner connector by interviewing,

At this time, in order to securely connect the corner connector and the roller bracket, one or more bolts are inserted through the mounting portion of the roller bracket and screwed to the corner connector.

On the other hand, in the case of a sliding door installed in a recent sliding cabinet, a heavy weight mirror or glass is used as the front panel of the door. Therefore, the door itself must be made to have a very thin thickness while minimizing the weight of the door itself. It is convenient to use and can secure safety according to use.

However, if the thickness of the door itself is reduced in this way, the thickness of the frame and the corner connector that constitutes the door frame should also be thin. In the conventional roller bracket coupling structure using bolts, the depth for safe screwing of the bolts is secured. As a result, safety is deteriorated, and as a result, the number of bolts used increases, resulting in poor assembly.

That is, in the case of bolts, the screwing depth must have a certain length or more depending on the thickness of the bolts to ensure the safety of screwing. As described above, the thickness of the recent sliding door is very thin, so the depth at which the bolts are screwed. Since it cannot be sufficiently secured, safety is deteriorated, and accordingly, the number of bolts used for assembling the corner connector and the roller bracket increases, resulting in a problem that the assembling property is deteriorated.

Accordingly, the present invention was devised to solve the above problems,

Breaking away from the conventional bolting method in the thickness direction of the door, by screwing the bolt in the longitudinal direction of the frame, the depth at which the bolts are screwed can be secured regardless of the thickness of the corner connector itself. In order to reduce the number of bolts used for assembly of the roller bracket, a fastening hole is perforated on one side end of the body of the corner connector, and a coupling hole is provided in the joint protruding forward from the corner connector, so that the bolts are coupled. An object of the present invention is to provide a sliding door for a sliding cabinet that is screwed into a fastening hole of a corner connector through a negative coupling hole.

In addition, the present invention is coupled to the rear of the body portion of the corner connector so that the mounting portion of the roller bracket is not fully adhered to the rear side of the corner connector due to the bolt that is screwed in the longitudinal direction of the corner connector to compensate for structural weaknesses such as opening. It is an object of the present invention to provide a sliding door for a sliding cabinet in which a protrusion protrudes and a slit groove cut in the longitudinal direction is provided in the mounting portion of the roller bracket, and the engaging protrusion is inserted into the slit groove and engaged.

Further, the present invention includes a coupling part formed by bending a part of the mounting part horizontally with the connection part based on the edge part to which the mounting part and the connection part are connected in order to more easily connect the coupling part of the roller bracket and increase the structural safety of the connection part and the coupling part. An object of the present invention is to provide a sliding door for a sliding cabinet.

In order to achieve the above object, the sliding door for a sliding cabinet according to the present invention,

In the sliding door for a sliding cabinet comprising a corner connector for connecting the door frames at a right angle, and a roller bracket coupled to the rear of the body portion of the corner connector,

The corner connector has a fastening hole perforated at one side end of the body portion to which the frame is not coupled,

The roller bracket is connected to a mounting part in contact with the rear of the body part, a connection part bent from the mounting part to the rear side to provide a roller, and a connection part protruding from the mounting part or the connection part to cover the fastening hole and connected to the fastening hole. Including a coupling portion having a corresponding coupling hole,

The bolt is inserted into the coupling hole of the coupling portion and coupled to the coupling hole of the corner connector, and the corner connector and the roller bracket are coupled to each other.

And in the sliding door for the sliding cabinet according to the present invention,

The corner connector includes a coupling protrusion protruding from the rear surface of the body portion,

The roller bracket is characterized in that it comprises a slit groove that is cut in the longitudinal direction from the mounting portion is fitted and coupled to the coupling protrusion.

Furthermore, in the sliding door for a sliding cabinet according to the present invention,

The coupling protrusion includes male coupling portions protruding from both side ends based on the length direction,

The slit groove is characterized in that it comprises a female coupling portion is engaged with the male coupling portion on both inner surfaces of the longitudinal direction.

In addition, in the sliding door for a sliding cabinet according to the present invention,

The coupling portion is characterized in that a portion of the mounting portion cut from a corner portion to which the mounting portion and the connecting portion are connected is bent horizontally with the connecting portion to be formed.

The sliding door for a sliding cabinet according to the present invention,

The bolt that connects the corner connector and the roller bracket to each other is screwed in the length direction of the frame rather than the thickness direction of the door, so even if the thickness of the door, especially the corner connector becomes thin, sufficient depth is secured for stable screwing of the bolt. It has excellent safety, and accordingly, the number of screws required for assembly can be reduced to improve assembly performance.

The coupling protrusion protruding from the rear of the body part of the corner connector is inserted into the slit groove formed in the mounting part of the roller bracket and is engaged in a male and female connection, and the mounting part is completely in close contact with the rear part of the body part, thereby preventing the roller bracket from spreading and thus safety More certainty,

There is an effect of securing structural safety and ease of manufacture of the roller bracket itself by cutting and bending a part of the mounting portion of the coupling portion of the roller bracket to which the bolt is coupled.

1 is an assembled perspective view of a corner connector and a roller bracket according to the present invention.
Figure 2 is an exploded perspective view of the corner connector and the roller bracket according to the present invention.
Figure 3 is a cross-sectional view of Figure 1;

The present invention will be described in detail in the text of the bar, implementation (態樣, aspect) (or embodiment) that can apply various changes and can have various forms. However, this is not intended to limit the present invention to a specific form of disclosure, and it should be understood that all changes, equivalents, and substitutes included in the spirit and scope of the present invention are included.

In each drawing, the same reference numerals, in particular the number of tens and ones, or the same number of tens, ones, and alphabet indicate members having the same or similar functions, and unless otherwise specified, each of the drawings The member indicated by the reference number can be identified as a member conforming to these criteria.

In addition, the components in each drawing are expressed by exaggeratingly large (or thick) or small (or thin) or simplified the size or thickness in consideration of the convenience of understanding, but this limits the scope of protection of the present invention. It shouldn't be.

The terms used in the present specification are only used to describe specific embodiments (sun, 態樣, aspect) (or examples), and are not intended to limit the present invention. Singular expressions include plural expressions unless the context clearly indicates otherwise.

In the present application, terms such as ~include~ or ~consist are intended to designate the presence of features, numbers, steps, actions, components, parts, or a combination thereof described in the specification, but one or more other features It is to be understood that the presence or addition of elements or numbers, steps, actions, components, parts, or combinations thereof, does not preclude in advance the possibility of being added.

Unless otherwise defined, 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 the present invention belongs. Terms as defined in a commonly used dictionary should be interpreted as having a meaning consistent with the meaning in the context of the related technology, and should not be interpreted as an ideal or excessively formal meaning unless explicitly defined in this application. Does not.

The ~1~, ~2~, etc. described in the present specification will only be referred to to distinguish different constituent elements, and are not limited to the order of manufacture, and the names in the detailed description and claims of the invention It may not match.

In describing the sliding door for a sliding storage cabinet according to the present invention, for convenience, if a rough approximate direction standard is specified with reference to FIG. 1, the front and rear sides are determined with the direction in which the corner connector 10 is arranged as the front, Based on the direction facing the rear, the direction in which gravity acts as the lower side, the direction in which it is viewed, is determined as it is, and the direction is specified according to this standard unless otherwise specified in the detailed description and claims of the invention related to other drawings. And describe.

Prior to the description, in the present specification, for convenience of understanding, a corner connector 10 that is assembled on the upper left corner of the door is described as a representative, but the present invention is also applied to a corner connector that is assembled on the rest of the door. It goes without saying that the same can be applied.

Hereinafter, a sliding door for a sliding cabinet according to the present invention will be described with reference to the accompanying drawings.

The present invention, as shown in Figures 1 to 3, a corner connector 10 for connecting the door frame (not shown) at a right angle, and a roller coupled to the rear of the body 11 of the corner connector 10 It relates to a sliding door for a sliding cabinet including a bracket (20),

1 to 3, in order to explain only the core of the present invention, horizontal and vertical frames constituting the frame of the door, a front plate that may be composed of a mirror or glass, a roller provided in the roller bracket 20, etc. Is omitted.

First, the corner connector 10 is a plastic molded product, the first connecting piece 12 protruding to form a right angle from both sides of the body 11 and the body 11 and fitted to the horizontal frame, It has a second connecting piece 13 fitted to the vertical frame.

The body portion 11 has a square shape having a predetermined thickness, and the first connecting piece 12 and the second connecting piece 13 protrude in the longitudinal direction of each frame on the left and right sides and the lower side of the body portion 11, respectively. You can confirm that it is done.

In the drawings of the present specification, an exemplary embodiment in which a rectangular first connecting piece 12 and a second connecting piece 13 are provided is shown as a representative, but the number or shape of each of these connecting pieces 12 and 13 is The interpretation of the rights of the present invention should not be limited due to the drawings of the present specification as that may be variously modified according to the structure of the frame used as the frame of the door.

In addition, the corner connector 10 is provided with a fastening hole 11h perforated on one side end of the body 11 to which the frame is not coupled.

Here, the side end portion of the body portion 11 to which the frame is not coupled means a side end portion opposite to each of the connecting pieces 12 and 13, and includes both an upper side and a right side in the drawings of the present specification.

However, since the load of the door, especially the front plate such as a mirror or glass, is applied in the vertical direction, the fastening hole 11h is the upper side end of the body 11 located opposite the vertical frame (the upper roller bracket Case) or the lower side end (in the case of the lower roller bracket) is preferably provided.

At this time, there is no limit to the depth of the fastening hole 11h to be drilled, but it is preferable to have a length greater than the thickness of the body portion 11 at least.

Reference numeral 11c, which is not described, is a support end that holds the edge of the front plate such as a mirror coupled to the front of the body portion 11.

Next, the roller bracket 20 includes a mounting portion 21 in contact with the rear surface of the body portion 11, a connecting portion 22 that is bent from the mounting portion 21 to the rear to be provided with a roller, and the fastening hole ( 11h), including a coupling portion 23 having a coupling hole 23h corresponding to the coupling hole 11h and protruding from the mounting portion 21 or the coupling portion 22 to the front side,

The bolt 24 is inserted into the coupling hole 23h of the coupling part 23 and coupled to the coupling hole 11h of the corner connector 10, so that the corner connector 10 and the roller bracket 20 are coupled to each other. .

The mounting portion 21 is in close contact with the body portion 11 to support the load of the door, and the connecting portion 22 secures a clearance between the door and the rollers while allowing the rollers to be provided on the rear surface of the door.

The roller bracket 20 may further include other structures or configurations other than the mounting portion 21 and the connecting portion 22 according to the sliding coupling structure of the roller and the rail.

For example, the roller bracket 20 is manufactured in a'C' shape so that a vertical roller is installed in a shaft connected at a right angle to the connection part 22,

The roller bracket 20 is manufactured in a'b' shape, so that the rotational shaft of the horizontal roller is connected to the connection part 22 so that the horizontal roller is installed.

The coupling portion 23 protrudes to have a front and rear width corresponding to the thickness of the body portion 11, and a coupling hole 23h corresponding to the coupling hole 11h is drilled.

At this time, the coupling hole 23h has a countersunk head shape, and the countersunk head of the bolt 24 is screwed into the coupling hole 23h.

In addition, the coupling part 23 is also provided to be connected to the mounting part 21 or the connection part 22 corresponding to the position of the fastening hole 11h.

For example, when the fastening hole 11h is provided on the upper side of the body part 11 as shown in the drawing, the coupling part 23 is provided to protrude from the front end of the connection part 22 to the front side,

Although not shown in the drawing, if the fastening hole 11h is provided on the right side of the body 11, the coupling portion is provided to be bent and protruded from the center of the right side of the mounting portion to the front side, or the coupling portion 23 is provided with the connection portion 22 ) Protruding from the front end of the front end, the roller bracket 20 will be coupled to the rear surface of the body 11 so that the connection 22 is erected in the vertical direction.

However, as described above, in consideration of the load of the door applied in the vertical direction, the coupling part 23 is more preferably provided to protrude forward from the front end end of the connection part 22.

In addition, while integrating the coupling part 23 with the connection part 22, the molding of the coupling part 23 and the processing of the coupling hole 23h are convenient,

The coupling part 23 is formed by bending a part of the mounting part 21 horizontally with the connection part 22 by cutting the edge portion to which the mounting part 21 and the connection part 22 are connected.

That is, after manufacturing a general'ㄴ' or'c' shape roller bracket 20, the central part of the mounting part 21 is cut into an '11' shape with the corners as the starting point, and then the incision is made. When the front and upper sides are horizontally bent and then the bent portion is processed, the coupling portion 23 and the slit groove 21A can be formed at the same time.

At this time, the perforation of the coupling hole (23h) may be performed at any stage before and after the incision of the coupling portion (23).

In addition, the corner connector 10 includes a coupling protrusion 11A protruding from the rear surface of the body portion 10,

The roller bracket 20 includes a slit groove 21A which is cut in the longitudinal direction from the mounting portion 21 and is fitted with the coupling protrusion 11A.

The coupling protrusion 11A protrudes from the center of the rear surface of the body 11 to have a predetermined length vertically or left and right (when the roller bracket 20 is laid to the right, unlike the drawing).

When the coupling protrusion 11A protrudes from the rear of the body 11 in this way, the front and rear thickness of the body 11 and the coupling protrusion 11A is widened, and thus the inner diameter of the fastening hole 11h is increased to increase the bolt 24 ) Can increase the bonding strength.

That is, for example, when the front and rear thickness of the body 11 is very narrow, such as 5 mm, it is very difficult to drill the fastening hole 11h having an inner diameter of at least 3 mm, and accordingly, the inner diameter of the fastening hole 11h becomes small The outer diameter of the threaded portion of (24) is also formed as thin as 3mm or less, so that the coupling force may be weakened.

On the other hand, when the coupling protrusion 11A protruding with a thickness of 2 to 3 mm is connected to the body portion 11 having a thickness of 5 mm, a total thickness of 7 to 8 mm can be secured, so that the inner diameter of the fastening hole 11h is 3 Not only can it be drilled more easily by increasing it to ~5mm, the outer diameter of the threaded portion of the bolt 24 coupled thereto is also increased, so that the coupling force by tightening the screw can be secured more safely.

At this time, the fastening hole (11h) is preferably provided in the center portion between the body portion 11 and the coupling protrusion (11A) is perforated.

The slit groove (21A) is formed by cutting a part of the mounting portion (21) from the end of the mounting portion (21) toward the corner, and the coupling protrusion (11A) is slidably coupled or fitted to the slit groove (21A) to be fastened. The hole 11h and the coupling hole 23h are positioned to overlap each other.

In addition, so that the mounting portion 21 from the rear of the body portion 11 is not separated,

The coupling protrusion 11A includes a male coupling portion 11a protruding from both side end portions in the longitudinal direction,

The slit groove (21A) includes female coupling portions (21a) that are engaged with the male coupling portions (11a) on both inner surfaces of the longitudinal direction.

Here, it means that the male coupling portion 11a of the coupling protrusion 11A is caught in the female coupling portion 21a in the slit groove 21A, the left and right widths of the male coupling portion 11a are left and right of the female coupling portion 21a. As a comprehensive meaning of the male and female coupling structure, which is wider than the width, the female coupling portion 21a is separated back and forth by the male coupling portion 11a and is not separated,

For example, a protrusion-shaped male coupling portion and a groove-shaped female coupling portion,

Or'' form male coupling part and ''' form female coupling part, etc.

The female coupling portion of the slit groove (21A), that is, the mounting portion (21) is caught by the male coupling portion of the coupling protrusion (11A) so that the coupling protrusion (11A) does not fall out to the front or rear of the slit groove (21A) If this is enough,

Accordingly, in the drawing, the cross section of the coupling protrusion 11A is formed in an inverted trapezoid shape, and the male coupling portions 11a are formed on both side ends, and the cross section of the slit groove 21A is formed in a trapezoidal shape, and the female coupling portions ( An example in which 21a) is formed is shown representatively.

The present invention of this configuration,

The bolt 24 is coupled by the fastening hole 11h of the body 11 and the fastening hole 23h of the coupling 23, so that even if the thickness of the body 11 is thin, the screw connection can be firmly maintained. By securing a depth that allows the corner connector 10 and the roller bracket 20 to be prevented from being separated in the vertical direction,

It is a locking structure using the male coupling part 11a of the coupling protrusion 11A and the female coupling part 21a of the slit groove 21A, and the corner connector 10 and the roller bracket 20 are separated in the front and rear horizontal directions. To prevent,

The corner connector 10 and the roller bracket 20 have an effect of increasing safety by maintaining a strong bond between the corner connector 10 and the roller bracket 20, and improving the assembly performance by reducing the number of bolts 24 used.

In the above description of the present invention, a sliding door for a sliding cabinet has been mainly described with reference to the accompanying drawings, but the present invention can be various modifications, changes and substitutions by those skilled in the art, and such modifications, changes and substitutions are made in accordance with the present invention. It should be construed as falling within the scope of protection.

10: corner connector 11: body part
11h: fastening hole 11A: coupling protrusion
11a: male coupling part 12: first connecting piece
13: second connecting piece
20: roller bracket 21: mounting portion
21A: slit groove 21a: arm coupling portion
22: connection portion 23: coupling portion
23h: coupling hole 24: bolt

Claims (4)

In the sliding door for a sliding cabinet comprising a corner connector for connecting the door frames at a right angle, and a roller bracket coupled to the rear of the body portion of the corner connector,
The corner connector has a fastening hole perforated at one side end of the body portion to which the frame is not coupled,
The roller bracket is connected to a mounting part in contact with the rear of the body part, a connection part bent from the mounting part to the rear side to provide a roller, and a connection part protruding from the mounting part or the connection part to cover the fastening hole and connected to the fastening hole. Including a coupling portion having a corresponding coupling hole,
A sliding door for a sliding cabinet, characterized in that the bolt is inserted into the coupling hole of the coupling portion and coupled to the coupling hole of the corner connector, and the corner connector and the roller bracket are coupled to each other.
The method of claim 1,
The corner connector includes a coupling protrusion protruding from the rear surface of the body portion,
The roller bracket is cut in the longitudinal direction from the mounting portion, the sliding door for a sliding storage cabinet, characterized in that it comprises a slit groove is fitted and coupled to the coupling protrusion.
The method of claim 2,
The coupling protrusion includes male coupling portions protruding from both side ends with respect to the longitudinal direction,
The slit groove is a sliding door for a sliding storage cabinet, characterized in that it comprises a female coupling portion engaging the male coupling portion on both inner surfaces of the longitudinal direction.
The method of claim 3,
The coupling portion is a sliding door for a sliding storage cabinet, characterized in that formed by bending a portion of the mounting portion cut from the edge portion connected to the mounting portion and the connecting portion horizontally with the connecting portion.

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