KR102419288B1 - Furniture assembly with rack and pinion gear type - Google Patents

Abstract

Disclosed is durability enhanced type storage furniture using a rack and pinion gear. The disclosed durability enhanced type storage furniture using a rack and pinion gear comprises: a main body composed of at least a side plate and a rear plate on both sides thereof, where the both sides face each other, and having holding holes at set positions of the side plate and the rear plate; one or more shelves provided to the main body; a plurality of holding pins inserted into the corresponding shelves to support the shelves while inserted into the side plates facing each other or the side plates and the rear plates facing each other; and holding control units moving the holding pins forward to the outside of the shelves and enabling the holding pins to be inserted into the corresponding holding holes to guide and control the shelves to be held by the main body.

Description

Durable storage furniture with rack and pinion gears {FURNITURE ASSEMBLY WITH RACK AND PINION GEAR TYPE}

The present invention relates to a durable storage furniture to which a rack-and-pinion gear is applied, and more particularly, by applying a rack-and-pinion method to a mounting pin embedded in a set position of a shelf to rotate the pinion gear, the mounting pin is installed on the main body of the furniture. A part of the side plate and the back plate of the side plate and the back plate are inserted to mount and fix the shelf, so the assembly and disassembly workability of the shelf for the body is improved. By manufacturing the heavy plate, the durability of the furniture is increased, and the rack-and-pinion gear type is applied to the holder pin that fixes the shelf inside the body of the furniture. It relates to a durable storage furniture to which a rack and pinion gear to be firmly fixed is applied.

In general, storage furniture provided with shelves for storing things, such as bookcases, lockers, and shoe cabinets, is configured to efficiently utilize the internal space by mounting the shelves and separating the internal space between floors by the shelf.

Such storage furniture is provided with a shelf support or assembly screws for shelf mounting in the mounting space of the shelf in order to mount the shelf.

The shelf support has a structure for being coupled to the shelf like a pin. This shelf support is configured to protrude from the inner plate of the furniture, and is configured to mount and combine the shelf on the shelf support.

As a related prior art, Korean Patent Laid-Open Publication No. 10-2017-0048205 (published on May 8, 2017, title of invention: assembly structure of a display shelf and its constituent members) has been proposed.

The above technical configuration is a background for helping understanding of the present invention, and does not mean a conventional technique widely known in the technical field to which the present invention pertains.

Even if the existing storage furniture provided with shelves is capable of changing the position of the shelf support, it is removed from the initial position composed of a plurality and then needs to be installed again in a new position, which causes considerable inconvenience.

In addition, the storage furniture provided with a shelf for storing has a groove on the side of the shelf and the shelf is mounted thereon by inserting dowels or pins. There is a problem in that the shelf and stored objects fall due to shaking or separation of the shelf, resulting in a safety accident. Moreover, the general dowel is not fastened firmly due to the loose fastening by simply inserting by hand, and over time, gradual bending due to the weight of the books, such as books on the shelf, occurs, causing the shelf to come off and fall. There is a problem that the phenomenon occurs.

In addition, when moving the shelf forward, the existing storage furniture falls away from the center of the dowel holder and falls, causing a safety accident due to the falling of objects such as books on the shelf. There is a problem that the durability is weak and the lifespan is short.

Therefore, there is a need to improve it.

The present invention has been devised to improve the above problems, and by removing a separate support or bracket for fixing the shelf to the side plate and the back plate of the furniture, the position of the shelf in the furniture is relatively free, and movement and reassembly of the shelf are relatively free. An object of the present invention is to provide a durable storage furniture to which a rack and pinion gear that is easily fixed is applied.

In addition, the present invention provides a space that can be bent due to play by remarkably reducing the gap between the shelf and the side plate and the gap between the shelf and the back plate by providing the mounting pin for mounting the shelf over the shelf and the side plate or the shelf and the back plate. An object of the present invention is to provide a durable storage furniture to which a rack and pinion gear is applied to prevent falling due to bending and separation of the shelf by exhibiting the effect of removing it.

In addition, the present invention applies the rack and pinion gear method, advances the mounting pins inserted into the shelf, and inserts a part into at least one of the side plate and the back plate of the furniture, so that the shelf can be easily installed in the furniture and inserted into the shelf An object of the present invention is to provide a durable storage furniture to which a rack and pinion gear is applied to easily position and fix the bookend by advancing the fixed pin and inserting a part into the bookend.

In addition, according to the present invention, the thickness of the side plate and the back plate should be set to be relatively thick so that the side plate and the back plate inserted in part along the axial direction of the mounting pin can stably support the furniture, thereby increasing the durability of the furniture. An object of the present invention is to provide a durable storage furniture to which an end pinion gear is applied.

In addition, according to the present invention, as a rack-and-pinion gear type is applied with a mounting pin for fixing the shelf to the inside of the body of the furniture, the mounting pin is fixed to the mounting control unit through gear coupling to prevent shaking, thereby securely fixing the shelf. An object of the present invention is to provide a durable storage furniture to which an end pinion gear is applied.

The durable storage furniture to which the rack and pinion gear according to the present invention is applied includes: a main body comprising at least both side plates and a rear plate facing each other, and forming a holder at a setting position of the side plate and the rear plate; one or more shelves provided in the body; a holding pin for supporting the shelf by being inserted into the corresponding shelf while being inserted into the facing side plate or the facing side plate and the rear plate; and a mounting operation unit for guiding the forward movement to the outside of the shelf by moving the mounting pin along the axial direction, and guiding the operation to mount the shelf on the main body by inserting it into the corresponding holder.

The side plate and the back plate are characterized in that made of the same thickness or similar thickness.

The mounting operation unit, at the set position of the shelf shelf, at least one side so as to be opened, the recessed seating groove portion; an access hole formed to be opened toward the edge of the shelf so as to be connected to the seating groove, and guiding the mounting pin to move in a straight line along the axial direction; One side perimeter that is embedded and fixed in the shelf through the seating groove portion, forms a one-side open hole that is opened to at least one side along the axial direction, and is opened on the circumferential surface to be connected to the one-side open hole while corresponding to the access hole a housing forming an open hole; a rotor rotatably inserted into the housing through the one side opening hole; a pinion gear portion formed on a circumferential surface of the rotor; And formed on the mounting pin supported on the inner surface of the entry hole or the one-side peripheral opening hole, as the pinion gear and gear-coupled, the mounting pin is linearly moved in the axial direction by the rotation of the rotor Includes a rack gear.

The holder pin is characterized in that it is provided with a stopper to limit the forward movement toward the holder when the rotor rotates in the circumferential direction.

The rotor has a locking groove recessed along the circumferential direction on the circumferential surface, and the housing is accommodated in the locking groove to prevent the rotor from being separated in the axial direction.

The main body is elastically opened when the shaft of the mounting pin is inserted and characterized in that it includes a holder for fixing the mounting pin by pressing the inner surface of the holder.

As described above, the durability-increasing storage furniture to which the rack-and-pinion gear according to the present invention is applied, unlike the prior art, removes a separate support or bracket for fixing the shelf to the side and rear plates of the furniture. The position change is relatively free, and the movement and reassembly and fixation can be easy.

In addition, the present invention provides a space that can be bent due to play by remarkably reducing the gap between the shelf and the side plate and the gap between the shelf and the back plate by providing the mounting pin for mounting the shelf over the shelf and the side plate or the shelf and the back plate. By exhibiting the effect of removing the shelf, it is possible to prevent the shelf from falling due to bending and separation.

In addition, the present invention applies the rack and pinion gear method, advances the mounting pins inserted into the shelf, and inserts a part into at least one of the side plate and the back plate of the furniture, so that the shelf can be easily installed in the furniture and inserted into the shelf The position of the bookend can be easily fixed by advancing the fixed pin and inserting a part of it into the bookend.

In addition, the present invention can increase the durability of the furniture as the side plate and the back plate, which are partially inserted along the axial direction of the mounting pin, should be set to have relatively thick thicknesses so that the furniture can be stably supported. .

According to the present invention, as the mounting pins for fixing the shelf to the inside of the furniture body are applied as a rack-and-pinion gear type, the mounting pins are fixed to the mounting operation part to prevent shaking, so that the shelf can be firmly fixed.

The present invention is provided with a holder inside the holder of the main body on which the holder pin is inserted and mounted, so that when the holder pin is inserted, the holder elastically expands and is in close contact with the inner surface of the holder, so that the holder pin is inserted into the body can be fixed more firmly.

1 is a perspective view of a durable storage furniture to which a rack and pinion gear is applied according to an embodiment of the present invention.
Figure 2 is a bottom perspective view of the main part of the durability-increasing storage furniture to which the rack and pinion gear according to an embodiment of the present invention is applied.
3 is an exploded view of the bottom of the shelf of the durable storage furniture to which the rack and pinion gear is applied according to an embodiment of the present invention.
4 to 6 are views showing a state of assembling the shelf of the durable storage furniture to which the rack and pinion gear is applied according to an embodiment of the present invention to the main body.
7 is a plan view of a shelf in which a mounting operation part of a durable storage furniture to which a rack and pinion gear is applied according to an embodiment of the present invention is installed.
8 is a perspective view of a main part of a mounting operation unit according to an embodiment of the present invention.
9 is an exploded perspective view of a mounting operation unit according to an embodiment of the present invention.
10 is a plan sectional view showing a state in which the mounting pin is moved by the rack-and-pinion gear method according to an embodiment of the present invention.

Hereinafter, an embodiment of a durable storage furniture to which a rack and pinion gear according to the present invention is applied will be described with reference to the accompanying drawings. In this process, the thickness of the lines or the size of the components shown in the drawings may be exaggerated for clarity and convenience of explanation. In addition, the terms to be described later are terms defined in consideration of functions in the present invention, which may vary according to intentions or customs of users and operators. Therefore, definitions of these terms should be made based on the content throughout this specification.

1 is a perspective view of an increased durability storage furniture to which a rack and pinion gear is applied according to an embodiment of the present invention, and FIG. 3 is a bottom exploded view of a shelf of a durable storage furniture to which a rack and pinion gear is applied according to an embodiment of the present invention, and FIGS. 4 to 6 are a rack and pinion according to an embodiment of the present invention. It is a view showing the state of assembling the shelf of the durable storage furniture to which the gear is applied to the main body.

7 is a plan view of a shelf on which a mounting operation part of a durable storage furniture to which a rack and pinion gear is applied according to an embodiment of the present invention is installed.

8 is a perspective view of a main part of the stationary operation unit according to an embodiment of the present invention, and FIG. 9 is an exploded perspective view of the stationary operation part according to an embodiment of the present invention.

10 is a plan sectional view showing a state in which the mounting pin is moved by the rack-and-pinion gear method according to an embodiment of the present invention.

1 to 10, the durability-increasing storage furniture 100 to which a rack and pinion gear is applied according to an embodiment of the present invention includes a body 200, a shelf 300, a mounting pin 500, and a mounting operation unit. (600).

In particular, the storage furniture 100 according to the present invention is characterized in that by applying a rack and pinion gear type, the shelf 300 is mounted and fixed at a free position of the main body 200 .

In this case, the main body 200 includes at least a pair of side plates 210 and a rear plate 220 facing each other. In addition, the main body 200 may include a frame supporting the side plate 210 and the rear plate 220 , and a door for opening and closing the opened front side.

Of course, the body 200 is applicable to various shapes and various materials.

In addition, the shelf 300 is supported and fixed to the side plates 210 on both sides, or the side plates 210 and the rear plate 220 on both sides while being disposed in the vertical direction inside the body 200 . At this time, one or more shelves 300 are provided inside the main body 200 .

Accordingly, the furniture 100 according to the present invention can be applied to a cabinet, a display case, and the like.

In addition, the mounting pins 500 are inserted into the corresponding shelves 300 while being inserted into the side plates 210 on both sides or the side plates 210 and the rear plates 220 on both sides facing the shelf 300 . serves to support the body 200 .

Accordingly, the side plate 210 and the rear plate 220 are recessed to form the holder 230 so that a part can be inserted along the axial direction of the holder pin 500 . At this time, the holder 230 may be formed in the shape of a hole in the side plate 210 and the rear plate 220 , but it is assumed that it has a groove shape in order to prevent the mounting pin 500 from being exposed to the outside.

In addition, it is assumed that a plurality of mounting holes 230 are formed along the same height across the side plate 210 and the rear plate 220 , and are formed in plurality in the height direction of the main body 200 . Accordingly, each of the shelves 300 can be installed at various positions inside the main body 200 .

On the other hand, the mounting operation unit 600 moves the mounting pin 500 to the outside of the shelf 300 and inserts it into the corresponding holder 230 , thereby inserting the shelf 300 into the side plate 210 of the main body 200 . Alternatively, it serves to guide the operation to be mounted on the side plate 210 and the rear plate 220 .

In particular, in general, the main body 200 is manufactured so that the thickness of the side plate 210 is greater than the thickness of the back plate 220 . That is, the thick plate 220 is manufactured to be relatively thin. In this case, the mounting pin 500 cannot stably support the shelf 300 with respect to the heavy plate 220 because the length at which a part of the mounting pin 500 is inserted into the back plate 220 is excessively short.

To prevent this, the thickness t1 of the side plate 210 and the thickness t2 of the rear plate 220 are the same or similar. For convenience, the thickness t1 of the side plate 210 and the thickness t2 of the rear plate 220 are illustrated as the same. Accordingly, the thick plate 220 is manufactured to be thicker than before. In this case, the thick plate 220 may be manufactured to be thicker than the side plate 210 . So, the durability of the body 200 is increased.

The mounting operation part 600 includes a seating groove part 610 , an entry hole part 620 , a housing 630 , a rotor 640 , a pinion gear part 650 , and a rack gear part 660 .

The seating groove 610 is recessed at the set position of the shelf 300 so as to be opened in at least a partial direction. At this time, it is assumed that one or more seating grooves 610 are recessed along the edge of the shelf 300 corresponding to the side plate 210 side or the side plate 210 side and the back plate 220 side. For convenience, it is assumed that the seating groove 610 is formed to be opened only at the lower portion of the shelf 300 .

In addition, the access hole 620 is formed to be opened toward the edge of the shelf 300 to be connected to the seating groove 610 , and guides the mounting pin 500 to move in a straight line along the axial direction. At this time, so that the central axis of the access hole 620 does not meet the central axis of the seating groove 610, the access hole 620 and the seating groove 610 are alternately arranged.

In addition, it is assumed that the access hole 620 is provided in a one-to-one correspondence with the seating groove 610 .

In particular, when some of the plurality of mounting pins 500 are located in the seating groove 610 and the access hole 620 along the axial direction and the rest are located in the corresponding holder 230, the shelf 300 is a side plate ( 210) or the side plate 210 and the back plate 220 are mounted and fixed.

The housing 630 is embedded and fixed in the shelf 300 through the seating groove 610 , forms an inner space, and forms a one-side open hole 632 that is opened in one (lower) direction. In addition, the housing 630 has one side of the circumferential surface opened to form a side circumferential opening hole 634 .

At this time, the housing 630 is formed so that one side open hole 632 and one side peripheral open hole 634 are connected from the inside.

A portion of the mounting pin 500 is inserted into the housing 630 through one side of the one side circumferential opening hole 634 along the axial direction. Accordingly, the mounting pin 500 is stably movable along the axial direction while being supported in the inner circumferential opening hole 634 on one side.

The housing 630 may be firmly fixed to the inside of the seating groove 610 by various methods such as bolting or bonding. Of course, the housing 630 is deformable in various shapes.

In addition, the rotor 640 is rotatably inserted into the housing 630 through the one side opening hole 632 . In particular, the rotor 640 may be formed to be rotated by hand, or may be formed to be rotated using a tool such as a screwdriver. The rotor 640 is applicable to various shapes and various materials.

In addition, the housing 630 and the rotor 640 correspond to each other so that the rotor 640 is inserted into the one side opening hole 632 of the housing 630 and then fixed to be prevented from being separated into the one side opening hole 632 . can be formed. Thus, the rotor 640 is stably rotated in the circumferential direction in the inner space 636 .

For example, the rotor 640 is recessed in the circumferential direction along the circumferential surface of the rotor 640, and the housing 630 is accommodated in the corresponding locking groove 642 so that the rotor 640 is moved in the axial direction. It has an elastically deformable elastic locking protrusion 639 to prevent it from being separated. At this time, it is assumed that the elastic locking projection 639 is provided so that a portion of the circumferential surface of the housing 630 is cut and elastically deformable. Of course, the elastic locking projection 639 can be deformed into various shapes.

In particular, the housing 630 forms one side opening hole 632 to be similar to the diameter (thickness) of the rotor 640 , so that the rotor 640 is positioned inside the one side opening hole 632 . can keep

In addition, the pinion gear part 650 is formed in the rotor 640 . In particular, the pinion gear part 650 is formed along the circumferential direction of the rotor 640 . In a state in which the rotor 640 is inserted into the one-side open hole 632 of the housing 630 , the pinion gear unit 650 faces the mounting pin 500 through the one-side peripheral open hole 634 .

The rack gear unit 660 is formed in the mounting pin 500 supported on the inner surface of the entry/exit hole unit 620, one side opening hole 632 and one side peripheral opening hole 634 communicating inside the housing 630. Through, the pinion gear unit 650 is gear-coupled. As the rack gear unit 660 is supported on the inner surface of the entry/exit hole unit 620 , the rack gear unit 660 maintains a gear-engaged state with the pinion gear unit 650 .

Accordingly, when the rotor 640 is rotated by an external force, the mounting pin 500 is moved in the axial direction and is axially inserted into the corresponding holder 230 or separated from the corresponding holder 230 .

Of course, when a user pulls the shelf 300 from the side plate 210 or the rear plate 220 in a state in which some of the mounting pins 500 are inserted into the corresponding holder 230, the corresponding mounting pins 500 are It is separated from the holder 230 .

It is assumed that the pinion gear unit 650 and the rack gear unit 660 are gear teeth as a rack and pinion gear.

In addition, the rack gear unit 660 may be formed over the entire circumferential direction of the mounting pin 500 , but it is assumed to be formed on one circumferential surface, and may be formed throughout the mounting pin 500 along the axial direction. However, it is assumed that it is formed on one side along the axial direction in order to reduce contact resistance with the inner surface of the holder 230 .

At this time, in order to limit the forward movement of the mounting pin 500 toward the holder 230 when the rotor 640 rotates in the circumferential direction, that is, the rack gear unit 660 and the pinion gear unit 650 are always geared together. A stopper 510 is provided to maintain the state. The stopper 510 is formed to protrude from one edge or end of the mounting pin 500 along the axial direction. The stopper 510 is deformable in various shapes.

In addition, the mounting pin 500 may have a guide protrusion (not shown) along the axial direction, and at least one of the mounting hole 230 and the entrance hole 620 has a guide groove portion (not shown) on the inner surface. ) can be formed on a straight line. So, when the mounting pin 500 moves along the axial direction, the guide protrusion is guided along the guide groove, so that the mounting pin 500 is stably guided in a straight line reciprocating movement.

In particular, when the rack gear unit 660 is formed on only one circumferential surface in the circumferential direction on the mounting pin 500 , the rack gear unit 660 is assembled for gear coupling with the pinion gear unit 650 of the rotor 640 . To facilitate this, the mounting pin 500 may be formed in an elliptical or polygonal shape in cross-section.

Of course, as the guide protrusion of the mounting pin 500 is accommodated in the guide groove of the access hole 620, the mounting pin 500 is inserted and guided in the entry hole 620 in the forward direction, so that the rack gear unit 660 is a pinion. It may be naturally gear-coupled to the gear unit 650 .

In addition, shaking may occur due to a design tolerance, etc. in a state in which the mounting pin 500 is shaft-inserted into the holder 230 .

In order to prevent this, the holder 230 formed on the main body 200, particularly the side plate 210 and the rear plate 220, elastically opens when the shaft of the holder pin 500 is inserted, and the inner surface of the holder 230 By pressing the holder 700 for fixing the mounting pin 500 is provided. The holder 700 has a circumferential surface cut, and when the mounting pin 500 is forcibly inserted into the shaft, it elastically opens and presses the inner surface of the corresponding holder 230 . Accordingly, the mounting pin 500 is firmly fixed in the state inserted into the holder 230 .

In particular, the holder 700 is prevented from being inserted into the holder 230 or more by forming a flange 710 on the rim. Of course, the holder 700 is deformable in various shapes.

As such, the rack-and-pinion gear type assembly type furniture 100 according to the present embodiment omits the existing supports protruding from the main body 200 for supporting the shelf 300, so that aesthetics and interior effects can be increased. The assembly and disassembly work of the shelf 300 for the body 200 is simple without installing a separate support on the body 200, and the installation position of the shelf 300 can be freely moved and changed, so that the user It has the advantage of high convenience and change adaptability.

In addition, the rack-and-pinion gear-type assembly furniture 100 according to the present invention is optimized for a knock-down fastening method, and disassembly and assembly of the main body 200 is possible only with one tool such as a screwdriver, whereby the main body 200 and less damage to the shelf 300 .

In addition, the rack and pinion gear type assembly type furniture 100 according to the present invention moves the mounting pin 500 in the axial direction with respect to the rotor 640 through the pinion gear and the rack gear structure, and then the shelf 300 is installed. As the assembly structure is disclosed, after the shelf 300 is automatically set in place with respect to the main body 200, it can be easily assembled.

Therefore, in the present invention, when the shelf 300 is fixed and assembled in a rack-and-pinion structure, the shelf 300 is firmly fixed to the body 200, so that the durability of the body 200 is improved, and the shelf 300 The assembly time is shorter than that of the conventional bolting assembly, and the position of the lathe 300 is freely moved, and installation and assembly are easy as assembly is possible using only one tool such as a screwdriver. In other words, in a state in which the holder pin 500 is inserted and supported inside the shelf 300 and the rack and pinion gear is coupled to the rotor 640 , the user moves the shelf 300 to the main body for the furniture 100 ( When the rotor 640 is rotated in one direction using a tool such as a screwdriver at the assembly position of 200), the pinion gear part 650 of the rotor 640 fixed in position is the rack gear part 660 and the mounting pin ( 500) guides the forward movement in the axial direction of the mounting pin 500. Thus, as the holder pin 500 is inserted into the holder 230 of the side plate 210 or the rear plate 220 with one side corresponding to the axial direction, the shelf 300 is the body 200 for the furniture 100 . installed inside of

Conversely, when the user rotates the rotor 640 in the other direction, due to the rack-and-pinion coupling, the fixed position of the rotor 640 moves the mounting pin 500 backward along the axial direction. So, the mounting pin 500 is separated from the corresponding holder 230 of the main body 200 . Accordingly, the shelf 300 is easily separated from the body 200 .

In addition, as the mounting pin 500 is moved in the axial direction by the rack-and-pinion gear structure method, the limited configuration of the mounting operation unit 600 is exposed to a minimum, so that the appearance is excellent.

And, since the side plates 210 and the back plate 220 on both sides constituting the main body 200 are applied as thicker plates than before, deformation phenomena such as mold fungus and bloating are prevented, durability and assembly convenience are improved do.

In addition, when the shelf 300 is first mounted on the heavy plate 220, the left and right symmetry is met, thereby preventing the phenomenon that the positions of the left and right shelves 300 are incorrectly mounted in advance, and the shelf 300 through the rack and pinion gear structure method ) and the side plate 210, and as the gap between the shelf 300 and the back plate 220 is significantly reduced, the shelf 300 or the body 200 exhibits the effect of reducing the bendable space, which results in a shelf The shaking or falling of the 300 is prevented.

In particular, although not shown in the present embodiment, the main body 200 of the furniture 100 according to the present invention applies a mounting pin 500 and a mounting operation unit 600 to easily install an oblique type shelf or partition therein. Can be assembled and applied. In addition, through the rack-and-pinion gear structure method according to the present invention, the shelf 300 can be freely disposed so as to be installed horizontally or inclined inside the main body 200, and the bookend (not shown) is located on the upper part of the shelf 300 . It can be arranged vertically or inclined with respect to the shelf 300 in the.

Although the present invention has been described with reference to the embodiment shown in the drawings, this is merely exemplary, and those of ordinary skill in the art to which various modifications and equivalent other embodiments are possible. will understand Therefore, the true technical protection scope of the present invention should be defined by the following claims.

100: storage furniture 200: body
210: side plate 220: thick plate
230: holder 300: shelf
500: pin 510: stopper
600: mounting operation part 610: seating groove part
620: entrance hole 630: housing
632: one side open hole 634: one side perimeter open hole
639: elastic protrusion 640: rotor
642: locking groove 650: pinion gear unit
660: rack gear 700: holder
710: flange

Claims (5)

a body comprising at least both side plates and a rear plate facing each other, and having a cradle formed at a setting position of the side plate and the rear plate; one or more shelves provided in the body; a holding pin for supporting the shelf by being inserted into the shelf corresponding to the side plate facing the side plate, or a plurality of the side plate and the rear plate facing each other; and a mounting operation unit for guiding the forward movement to the outside of the shelf by moving the mounting pin along the axial direction and guiding the operation to mount the shelf on the main body by inserting it into the corresponding holder,
The mounting operation unit may include: a seating groove formed at a setting position of the shelf, recessed to be opened only in a downward direction of the shelf;
an access hole formed to be opened toward the edge of the shelf so as to be connected to the seating groove, and guiding the mounting pin to move in a straight line along the axial direction;
One side perimeter that is embedded in and fixed to the shelf through the seating groove portion, forms a one-side open hole that is opened at least downward along the axial direction, and is opened to the circumferential surface so as to be connected to the one-side open hole while corresponding to the access hole a housing forming an open hole; and
and a rotor rotatably inserted into the housing through the one side opening hole,
The rotor has a locking groove recessed along the circumferential direction in the circumferential surface, and the housing is accommodated in the locking groove so as to prevent the rotor from being separated in the lower direction of the shelf along the axial direction. provided,
The holder pin is a rack-and-pinion gear-applied durability increase type, characterized in that a stopper is protruded from one edge or an end along the axial direction in order to limit the forward movement toward the holder when the rotor rotates in the circumferential direction. storage furniture.
The method of claim 1,
The rack and pinion gear applied durability-increasing storage furniture, characterized in that the side plate and the back plate are made of the same thickness or a similar thickness.
The method according to claim 1 or 2, wherein the holding operation unit comprises:
a pinion gear portion formed on a circumferential surface of the rotor; and
It is formed on the mounting pin supported on the inner surface of the entry hole or the one-side peripheral opening hole, and as the pinion gear unit and the gear are coupled, the mounting pin is linearly moved in the axial direction by the rotation of the rotor. Durable storage furniture with rack and pinion gear applied, characterized in that it includes a size fisherman.
delete The method of claim 1,
The main body expands elastically when the shaft of the mounting pin is inserted, and the rack and pinion gear is applied to increase durability storage furniture, characterized in that it comprises a holder for fixing the mounting pin by pressing the inner surface of the holder.

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