KR102321455B1 - Storage - Google Patents

Abstract

The present invention relates to a storage cabinet having a shutter-type sliding door, which breaks away from the conventional conventional sliding and sliding doors and introduces a shutter-type sliding door for convenience, while ensuring the operation stability of the shutter-type sliding door and at the same time , relates to a cabinet equipped with a shutter-type sliding door that can be easily produced at a low manufacturing cost without being limited by the front, rear, left and right widths of the cabinet.
In order to achieve the above object, a storage cabinet having a shutter-type sliding door according to the present invention includes a body having a storage space having a front opening formed therein; a guide part provided at the upper part and the lower part of the storage space, respectively, and comprising a front-side first straight part, a side-side second straight part, and a corner curved part connecting the first and second straight parts; and a shutter-type sliding door in which adjacent vertical bars are bent inwardly connected to each other and slidably coupled to the guide part to open and close in a sliding manner; but having the corner curved part between the first and second straight parts It is characterized in that the corner connector is assembled to form the guide part.

Description

Storage closet with sliding shutter doors {STORAGE}

The present invention relates to a cabinet equipped with a shutter-type sliding door, which breaks away from the conventional conventional sliding and sliding doors and introduces a shutter-type sliding door for convenient use, while ensuring the operational stability of the shutter-type sliding door and at the same time , relates to a cabinet equipped with a shutter-type sliding door that can be easily produced at a low manufacturing cost without being limited by the front, rear, left and right widths of the cabinet.

In general, a storage cabinet installed in a bathroom is configured such that a flat panel is cut to a predetermined size, and a partition is installed in the interior space to accommodate toiletries, towels, toilet paper, and the like.

Such storage cabinets are installed in various opening structures with doors for concealing the interior in the front part, and are usually divided into opening and closing cabinets and sliding cabinets according to the opening and closing methods of the doors.

Since double sliding cabinets do not require separate front, rear, left, and right spaces for opening and closing doors, it is preferred to install sliding cabinets in most bathrooms.

In such a sliding door cabinet, the storage space is opened and closed through a pair of sliding doors in a state in which the storage space for storing items is partitioned into several layers through a partition.

In this case, the conventional sliding door cabinet cannot completely open the front part of the cabinet because the sliding doors are opened to overlap each other.

For reference, as a prior art related to a sliding closet, there is a Registered Patent No. 10-1594141 and the like, and as a prior art related to a shutter-type sliding door, there is a Registered Utility Model No. 20-0485308.

Accordingly, the present invention has been devised to solve the above problems,

A shutter-type sliding door is provided to completely open the front of the main body to accommodate more types (sizes) of items. An object of the present invention is to provide a storage cabinet equipped with a shutter-type sliding door that can be easily produced to reduce manufacturing costs.

In order to achieve the above object, a storage cabinet having a shutter-type sliding door according to the present invention,

a body having a storage space having a front opening;

a guide part provided at the upper part and the lower part of the storage space, respectively, and comprising a front-side first straight part, a side-side second straight part, and a corner curved part connecting the first and second straight parts; and

A shutter-type sliding door in which adjacent vertical bars are connected to each other so as to be bent inward, and are slidingly coupled to the guide part to open and close in a sliding manner;

The guide part is formed by assembling a corner connector having the corner curved part between the first and second straight parts.

And a storage cabinet equipped with a shutter-type sliding door according to the present invention,

The guide part includes an inner panel forming an inner wall surface of the first straight part, the second straight part, and the corner curved part,

The corner connector is characterized in that it is composed of a first body coupled to the outside of the corner portion of the inner panel to form an outer wall surface of the corner curved portion.

Further, in a storage cabinet having a shutter-type sliding door according to the present invention,

The guide part includes a rail having an inner wall surface and an outer wall surface of each of the first straight part and the second straight part,

The corner connector is coupled to the corner portion between the rails and is characterized in that it is composed of a second body having an inner wall surface and an outer wall surface of the corner curved portion.

In addition, in the storage closet provided with the shutter-type sliding door according to the present invention,

The shutter-type sliding door is hinged to the upper end or lower end of one of the vertical bars, and both ends are connected to support the upper end or lower end of the other adjacent vertical bar; It is characterized in that it includes a moving member.

A storage cabinet equipped with a shutter-type sliding door according to the present invention,

The front part of the main body can be completely opened through the shutter-type sliding door, so you can freely store and store various types (sizes) of items.

In particular, by separately manufacturing a corner connector having a curved corner of the guide part and assembling it between the first straight part on the front side and the second straight part on the side side to form the guide part, the front, rear, left, right, and left widths of the cabinet can be freely changed and produced while manufacturing It has the effect of reducing the unit cost.

1 is a perspective view of a storage closet according to the present invention.
Figure 2 is a partial exploded perspective view of the cabinet according to the present invention.
Figure 3 is a bottom view and a plan view of the floor portion according to the present invention.
Figure 4 is a partially exploded perspective view of the ceiling portion according to the present invention, and a partial exploded perspective view of the floor portion.

The present invention is intended to be described in detail in the text of the embodiment (態樣, aspect) (or embodiments) can be applied to various changes and can have various forms. However, this is not intended to limit the present invention to the specific disclosed form, it should be understood to include all modifications, equivalents and substitutes included in the spirit and scope of the present invention.

In each drawing, the same reference numerals, particularly the tens digit and the one digit, or the tens digit, the one digit, and the same alphabetic reference numerals indicate members having the same or similar functions, and, unless otherwise stated, each The member indicated by the reference sign may be understood as a member conforming to these standards.

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

The terminology used herein is only used to describe a specific embodiment (aspect, aspect, aspect) (or embodiment), and is not intended to limit the present invention. The singular expression includes the plural expression unless the context clearly dictates otherwise.

In the present application, terms such as comprises or consists of are intended to designate that a feature, number, step, operation, component, part, or combination thereof described in the specification is present, but one or more other features It is to be understood that it does not preclude the possibility of the presence or addition of numbers, steps, operations, components, parts, or combinations thereof.

Unless defined otherwise, all terms used herein, including technical and 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 should be interpreted as having a meaning consistent with the meaning in the context of the related art, and should not be interpreted in an ideal or excessively formal meaning unless explicitly defined in the present application. does not

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

When describing a cabinet equipped with a shutter-type sliding door according to the present invention, for convenience, if an approximate direction standard that is not strict is specified with reference to FIG. In the detailed description and claims of the invention related to other drawings, unless otherwise specified, the direction is specified and described according to this standard.

Hereinafter, a storage closet having a shutter-type sliding door according to the present invention will be described with reference to the accompanying drawings.

The present invention relates to a storage cabinet having a shutter-type sliding door,

a body 10 having a receiving space in which a front opening 11 is formed;

A corner curved portion ( 23) consisting of a guide portion (20A) (20B); and

The vertical bars 31 adjacent to each other are connected to be bent inward, and the shutter-type sliding door 30 is slidably coupled to the guide portions 20A and 20B to open and close in a sliding manner.

The main body 10 is provided with a front opening 11, a rear portion 12, a bottom portion 13A, a ceiling portion 13B, and left and right side portions 14 to form a storage space, and this body 10 has a rear portion ( 12), the flat panel corresponding to the bottom part 13A, the ceiling part 13B, and the left and right side parts 14 is cut to a predetermined size and assembled into a box shape, and at this time, the left and right side parts 14 are moved inside In order to guide and conceal the shutter-type sliding door 30, a front vertical plate 11A coupled while covering a partial area on both sides of the opening 11 is coupled to both sides of the front opening 11, and the front opening 11 ) is coupled to the upper and lower sides of the front horizontal plate 11B that is coupled while covering the upper and lower portions of the opening 11 .

On the other hand, when the cabinet is installed under the sink or sink, the ceiling portion 13B may be omitted, and the floor portion of the upper structure of the cabinet may be substituted for the ceiling portion of the main body 10 .

In addition, the second straight part 22 (and the corner curved part 23) inside the left and right side parts 14 so that the shutter-type sliding door 30 moved and accommodated on the left and right side parts 14 is not exposed on the storage space. )) an inner side plate 15 to cover may be installed.

The guide portions 20A and 20B are connected by bending in a 'L' shape from the front opening 11 of the main body 10 toward the left and right side portions 14, and the lower end of the shutter-type sliding door 30 is It may be divided into a lower first guide part 20A that is slidably coupled and an upper second guide part 20B that is slidably coupled to the upper end of the shutter-type sliding door 30 .

In the drawings of the present specification, for convenience of understanding, the first embodiment of the present invention is applied to the lower first guide part 20A, and the second embodiment of the present invention is applied to the upper second guide part 20B. The cabinets in which the first and second embodiments are mixed are shown representatively, and in this specification, the first and second embodiments will be described separately from the top and bottom based on the drawings, but the first and second embodiments are opposite to each other Of course, it can be installed, and a detailed description related thereto will be described later.

Next, the shutter-type sliding door 30 can be bent (folded) at a predetermined angle like a normal shutter, and a plurality of vertical bars 31 can be connected in various hinge (link) structures,

The shutter-type sliding door 30 of the present invention is fixed by attaching and fixing the sheet paper 32 to the rear surface of the vertical bars 31 using an adhesive, so that the vertical bars 31 can be connected and bent, thereby reducing the manufacturing cost. It promotes savings and ease of manufacturing.

This sheet 32 is sufficient to ensure the strength to the extent that the vertical bars 31 are not separated, and there is no limitation in the material thereof.

In addition, the shutter-type sliding door 30 is hinged to the upper end or lower end of one of the vertical bars 31, and a support member 33 connected to support the upper end or lower end of the other adjacent vertical bar 31; It is provided on the member 33 and includes a moving member for reducing frictional force with the guide portions 20A and 20B.

The support member 33 is formed to be longer than the left and right width of the vertical bar 31 in the horizontal direction, and the middle part is hinged to the center of the end of the middle vertical bar 31 among the three vertical bars 31, Both ends support the inner ends of the ends of both sides of the vertical bars 31 among the three vertical bars 31 , thereby minimizing the number of support members 33 and moving members required to support the vertical bars 31 .

At this time, although not shown in the drawing, the support member 33 is composed of powders connected in a foldable joint structure, and each powder is hinged to the vertical bars 31 one-to-one, so that the vertical bars 31 are curved corners. When passing through the portion 23, the angle of the support member 33 itself can be changed in response to the bending of the vertical bars 31.

The moving member distributes and supports the load of the shutter-type sliding door 30 and reduces the frictional force generated by the guide portions 20A and 20B to facilitate the opening and closing movement of the shutter-type sliding door 30, Various rollers or bearings, a protrusion structure that reduces the friction area, and the like may be considered.

However, in the shutter-type sliding door 30 of the present invention, the direction is changed between the front-side first straight part 21 and the side-side second straight part 22 , so the movable member is the support member (33). It is more preferable that it is provided in the center and is composed of a ball caster 34 that can rotate freely in all directions.

The ball caster 34 includes a housing 34a coupled to and fixed to an upper or lower surface of the support member 33 and having a lower exposed hole, and a housing built in the housing 34a so that a lower portion is exposed through the exposed hole. It is composed of a ball member (34b) coupled to be freely rotatable in the front, rear, left, right, and all directions within the (34a).

It is more preferable that the ball caster 34 is provided on the support member 33 connecting the lower ends of the vertical bars 31 .

In addition, the support member 33 is provided with a tip portion 33a that protrudes from the inner surface and decreases in thickness toward the tip portion, so that the tip portion 33a is located on the inner wall surface of the guide portions 20A and 20B. (line) contact or point (點) contact.

This tip portion 33a prevents the shutter-type sliding door 30 from swinging back and forth on the guide portions 20A and 20B.

Although not shown in the drawings, the ball caster 34 may have a bearing for rollingly supporting a portion of the upper end of the ball member 34b inside the housing 34a.

The ball caster 34 is free to change direction according to the moving direction when the ball member 34b passes the corner curved portion 23, thereby making the opening/closing movement of the shutter-type sliding door 30 smoother.

Next, the guide portions 20A and 20B, which are one of the core of the present invention, will be described in detail.

The guide portions 20A and 20B are provided on the floor portion 13A and the ceiling portion 13B in the form of a general storage cabinet. In the case of a sink or a sink lower cabinet, the ceiling portion 13B may be omitted. In this case, the second to be described later The rails 134A and 135B of the embodiment may be coupled to the inner surfaces of the front horizontal plate 11B and both side portions 14 to form the upper guide portion 20A.

In the present specification, for convenience of understanding, a storage closet provided with a floor portion 13A and a ceiling portion 13B will be described.

First, in the present invention, a corner connector 133 having the corner curved portion 23 is assembled between the first and second straight portions 21 and 22 to form the guide portions 20A and 20B. characterized.

That is, after the guide portions 20A and 20B are integrated into one and not coupled to the panel, the first and second straight portions 21 and 22 and the corner curved portions 23 are separately manufactured as separate members, assembled with each other

To this end, the bottom part 13A or the bottom part 13A and the ceiling part 13B of the present invention are external panels 131A and 131B having the first straight part 21 and the second straight part 22. and a corner connector 133 coupled to an inner edge of the outer panel 131A and 131B to form the corner curved portion 23 .

The outer panels 131A and 131B form the outer surface of the floor portion 13A or the ceiling portion 13B, and are cut into a rectangular flat plate according to the front, rear, left, right, and right sizes of the cabinet, and the lower part of the structure such as a washbasin or sink. When the storage cabinet is installed in the , the outer panel of the ceiling portion 13B is omitted, and the floor plate of the structure may be substituted for the ceiling portion 13B.

The corner connector 133 is coupled to both front end corners of the outer panels 131A and 131B, and connects the front side first straight line part 21 and the side side second straight line part 22 to round the shutter. Guide the direction change of the sliding door (30).

First, as a first embodiment of the present invention,

The guide portions 20A and 20B include an inner panel 132 forming an inner wall surface of the first straight part 21 and the second straight part 22 and the corner curved part 23,

The corner connector 133 is coupled to the outside of the corner portion of the inner panel 132, characterized in that it is composed of a first body (133A) forming the outer wall surface of the corner curved portion (23).

Specifically, the inner panel 132 has a smaller area than the outer panels 131A and 131B and is coupled to protrude from the inner surfaces of the outer panels 131A and 131B, so that the edge end is the front first straight line. Forming the inner wall surface of the portion 21 and the side-side second straight portion 22 and the corner curved portion 23,

The first body 133A is coupled to protrude from the inside of the corners of the outer panels 131A and 131B to form an outer wall surface of the corner curved portion 23 .

When describing the first embodiment on behalf of the first guide portion 20A provided on the bottom portion 13A,

The inner panel 132 has a flat plate-shaped front side edge portion chamfered in an oblique shape, and the rear end is fitted to the rear end of the first outer panel 131A and coupled to the center of the first outer panel 131A.

The inner panel 132 has a first straight edge portion 132a on the front side, a second straight edge portion 132b on the side side, and a chamfered edge portion 132c on both sides of the front end, respectively, a first straight portion 21 and, It functions as the inner wall surface of the second straight line portion 22 and the corner curved portion 23, and guides the movement and direction change of the shutter-type sliding door 30 (more strictly, the ball caster 34).

At this time, along the upper, lower, left and right edges of the front opening 11, the front vertical plate 11A, the front horizontal plate 11B, and the left and right side portions 14 are coupled at right angles, respectively, the front vertical plate 11A and the front horizontal plate 11B ) and the left and right side parts 14 are spaced apart from the first and second straight edge parts 132a and 132b of the inner panel 132 by a predetermined distance to the outer wall surfaces of the first and second straight parts 21 and 22. Functions, and the inner side plate 15 is vertically coupled to the second straight edge portion 132b of the inner panel 132 at a right angle to prevent the second straight portion 22 from being exposed onto the storage space.

The first body 133A has two outer surfaces connected at right angles to correspond to the corners of the first outer panel 131A, and both ends of the outer surface are connected to the concavely rounded first round portions 133a. , while the first round portion 133a is spaced apart from the chamfered edge portion 132c by a predetermined distance, it functions as an outer wall surface of the corner curved portion 23 .

That is, the front vertical plate 11A, the front horizontal plate 11B, the side part 14 and the first round part 133a are outwardly from the edge parts 132a, 132b, and 132c of the inner panel 132. The first guide portions 20A are provided to be spaced apart at the same distance and concavely connected in a groove shape in the circumferential direction of the inner panel 132 on the upper surface of the first outer panel 131A.

In addition, the first body (133A) further includes a first fastening portion (133b) connected to extend upwardly from the outer surface connected at a right angle, the front vertical plate (11A) and the left and right side portions 14 are the first of the corner connector (133). 1 to be coupled to the fastening part 133b with a bolt, the coupling of the main body 10 is made more robust.

That is, the front vertical plate 11A, the front horizontal plate 11B, and the left and right side portions 14 are bolted to the edge of the first outer panel 131A at right angles, and at this time, the first fastening portion of the corner connector 133 ( 133b) is bolted to the inner surface of the front vertical plate 11A and the left and right side parts 14, so that the first outer panel 131A - the front vertical plate 11A - the left and right side parts 14 - the corner connector 133 may be more firmly coupled to each other with bolts.

Through this, the present invention makes it unnecessary to process a groove for the first guide portion 20A in the panel forming the bottom portion 13A, and thus the first outer panel 131A and the inner panel 132 are simply cut, The first body 133A used as the corner connector 133 is standardized and manufactured, and then the first body 133A is coupled to the first external panel 131A of various sizes to assemble the bottom part 13A. Compared to the method of processing the first guide part 20A integrally with the part 13A, it is possible to customize the cabinet by freely changing the front, back, left and right sizes, and there is an effect that can minimize the manufacturing cost.

In other words, when the shutter-type sliding door 30 is introduced as an alternative to the general sliding door, a method in which the door is concealed and opened on the side part 14 of the main body 10 should be considered. 13A), the bar should be bent in a 'L' shape and provided, and the guide part has to be grooved on the bottom part 13A according to the size of the cabinet. Accordingly, there is a problem in that the cost consumed is increased.

In other words, machining of the guide part in the form of a groove is performed by a CNC lathe, etc. At this time, if the processing value of the guide part is changed each time depending on the size of the cabinet, mass production is not possible, and the manufacturing cost increases by that amount, so that the cabinet is customized. There is a limit in that it cannot be produced in a production method and has no choice but to be produced in a unified standard.

On the other hand, in the present invention, the first outer panel 131A and the inner panel 132 can be simply cut and machined at a lower cost compared to machining a groove having a curved shape, and a corner connector 133 of a unified standard can be used. After production, the first guide part 20A in the form of a groove can be formed only by assembling it according to the production size of the cabinet, so that the cabinet with the shutter-type sliding door can be customized and distributed at a lower price. there is

Then, as a second embodiment of the present invention,

The guide portions 20A and 20B include rails 134A and 134B having an inner wall surface and an outer wall surface of each of the first straight portion 21 and the second straight portion 22,

The corner connector 133 is coupled to the corner portion between the rails 134A and 134B and is composed of a second body 133B having an inner wall surface and an outer wall surface of the corner curved portion 23. do.

Specifically, the rails 134A and 134B are respectively provided at upper and lower ends of the front opening 11 and inside the side portion 14, so that each of the rails 134A and 134B is the first straight portion 21 . ) and a second straight line portion 22,

The second body 133B is provided inside the corner portion of the front opening 11 to form the corner curved portion 23 .

When describing the second embodiment on behalf of the second guide portion 20B provided in the ceiling portion 13B,

The rails 134A and 134B are bar-type members having a 'C'-shaped cross-section with an open lower surface, and are respectively first, The second rails 134A and 134B are coupled, and each rail 134A, 134B itself functions as the first and second straight portions 21 and 22 .

At this time, if there is no separate panel used as the ceiling portion 13B (that is, if the storage cabinet has an open upper surface of the storage space), each rail 134A, 134B is a front horizontal plate 11B and both side side portions 14. may be coupled to the inner surface of the

This second embodiment also prevents the second rail 134 from being exposed onto the storage space through the inner side plate 15 .

When the second body 133B has two outer surfaces connected at right angles to correspond to the corners of the second outer panel 131B, and connects the ends of the first and second rails 134A and 134B in a round manner. It has an arc-shaped corner curved part 23 having this open 'C'-shaped cross section.

That is, the inlet and outlet of the corner curved portion 23 are directly connected to the inlet and outlet of the first and second rails 134A and 134B to guide the direction change of the shutter-type sliding door 30 .

At this time, the outer wall surface of the corner curved portion 23 is formed of the arc-shaped second round portion 133c, whereas the inner wall surface of the corner curved portion 23 is the first and second rails 134A and 134B in an oblique direction. It consists of an oblique part (133d) connected in a straight line.

Accordingly, the corner curved portion 23 of the first guide portion 20A formed by the first round portion 133a and the chamfered edge portion 132c, and the second round portion 133c and the slanted portion 133d are formed. The corner curved portion 23 of the guide portion 20B is connected so that the width between the inlet and the outlet of the corner curved portion 23 has a size relationship of narrow - wide - narrow. .

Through this, the inner space of the corner curved portion 23, in which the bending angle is increased as the vertical bars 31 are opened, is wider than the entrance and exit, so that the direction change of the vertical bars 31 can be made more easily.

In addition, the second body 133B further includes a second fastening portion 133e connected to extend upward from the outer surface connected at a right angle.

The second fastening part 133e is coupled with both front end edges of the second outer panel 131B, and at the same time as the first fastening part 133b, the front vertical plate 11A and the left and right side parts 14 are connected to each other. It is used to be bolted to the corner connector 133 .

This second embodiment introduces the first and second rails 134A and 134B that can be manufactured at a lower cost compared to machining the guide part in the form of a groove, and a second body 133B used as a corner connector 133. By standardizing and manufacturing, as in the first embodiment, while advantageously customizing the cabinet, it provides the effect of minimizing the manufacturing cost.

On the other hand, the first and second bodies 133A and 133B include a space formed by opening an upper or lower surface of a body having outer surfaces connected at right angles and round parts 133a and 133c, and a bottom of the space. The face (opposite to the open face) is provided with a bolt coupling hole.

That is, the upper surfaces or lower surfaces of the first and second bodies 133A and 133B are formed in a slimming shape to have a space portion, and a bolt coupling hole is provided on the bottom surface for sealing one surface of the space portion.

The bolt coupling holes are separate from the first and second fastening parts 133b and 133e, and external panels 131A and 131B that form the bottom 12A or the ceiling 12B (in the case of a cabinet with an open upper surface). The first and second bodies 133A and 133B are bolted to the bottom plate of the upper structure).

In addition, the first and second bodies (133A, 133B) are provided with engaging grooves (133f) concave at right angles to the corners of the outer surfaces,

The front vertical plate 11A has an assembly protrusion 11a protruding from the inner surface so as to be fitted into the locking groove 133f.

The engaging groove (133f) and the assembly projection (11a) make the assembly of the front vertical plate (11A) and the body (133A, 133B) firmly, and facilitate the coupling of the side portion 14 through the assembly projection (11a) can do.

In the above description of the present invention, with reference to the accompanying drawings, a cabinet having a shutter-type sliding door has been mainly described, but the present invention is capable of various modifications, changes and substitutions by those skilled in the art, and these modifications, changes and substitutions are It should be construed as belonging to the protection scope of the invention.

10: body 11: front opening
11A: Front vertical plate 11B: Front horizontal plate
12: rear part 13A: bottom part
13B: ceiling portion 14: side portion
15: inner side plate
20A, 20B: guide part 21: first straight part
22: second straight part 23: corner curved part
30: shutter-type sliding door 31: vertical bar
32: sheet paper 33: support member
34: ball caster
130: corner connector
131A, 131B: outer panel 132: inner panel
133: corner connector 133A, 133B: body
134A, 134B: rail

Claims (4)

a body having a storage space having a front opening;
a guide part provided at the upper part and the lower part of the storage space, respectively, and comprising a front-side first straight part, a side-side second straight part, and a corner curved part connecting the first and second straight parts; and
A shutter-type sliding door in which adjacent vertical bars are connected to each other so as to be bent inward, and are slidingly coupled to the guide part to open and close in a sliding manner;
The guide part is formed by assembling a corner connector having the corner curved part between the first and second straight parts,
The shutter-type sliding door is hinged to the upper end or lower end of one of the vertical bars, and both ends are connected to support the upper end or lower end of the other adjacent vertical bar; A storage closet with a shutter-type sliding door, characterized in that it includes a moving member.
The method of claim 1,
The guide part includes an inner panel forming an inner wall surface of the first straight part, the second straight part, and the corner curved part,
and the corner connector comprises a first body coupled to the outside of the corner of the inner panel to form an outer wall surface of the curved corner.
The method of claim 1,
The guide part includes a rail having an inner wall surface and an outer wall surface of each of the first straight part and the second straight part,
The corner connector is coupled to a corner portion between the rails and comprises a second body having an inner wall surface and an outer wall surface of the corner curved portion.
delete

Images