KR101848368B1 - A drawer with protection for upset - Google Patents

Abstract

The present invention provides a selection type falling prevention dresser, which is to solve that two or more drawers are not withdrawn by sliding at same time and have a basic locking function of the drawer by improving a structure of the dresser. According to the present invention, the selection type falling prevention dresser comprises: a main body (1) to which a rail (2) is fixed as the main body (1) is divided into multiple layers as much as a number corresponding to the number of the drawers; the multiple drawers (10) sliding by being guided by the rail of the main body; a key control unit (20) permitting incoming and outgoing of the drawer; a locking member; a falling preventing unit; and a control block (40). The locking member includes: a body (71) obtaining a vertical moving ratio by being installed in an accommodation unit (5) on one side of the main body; an operation pin (72) causing a vertical movement of the body by interference with the key control unit by protruding from an upper end of the body; and control pins (73) protruding as much as the number corresponding to the number of the drawers on the body and controlling slide and withdrawal of the drawer by interfering a stopper (11) on the side of the drawer by a vertical movement of the body by the operation pin. The falling preventing unit includes: a body (78) obtaining the vertical moving ratio by being inserted into the accommodation unit (6) on the other side of the main body so that locking of other drawers adjacent can be determined by being engaged between the layers by an individual slide withdrawal action of the drawer (10) in an unlocking state by the key control unit (20); and lifting pins (77) formed as much as the number corresponding to the number of the control pin of the locking member and protruding from the body at a point lower than position on a horizontal line of the each control pin. At least one or more control blocks (40) are inserted and connected to both sides of the drawer, and the control block (40) can control a withdrawal range of the drawer as the control block (40) interferes the control pin (73) of the locking member or the lifting pin (77) of the falling prevention unit in a drawer withdrawing process.

Description

{A drawer with protection for upset} with optional draw range by drawer {

The present invention discloses a related structure of a drawer in which a drawer is pulled out of a drawer. The existing structure in which only a simple locking function is given is actively improved, and a single drawer is pulled out even in a locked state by key operation. And a predetermined means for preventing the excessive opening of the drawer is furthermore adopted. In addition, the draw-out range of the drawer is arbitrarily adjusted And an optional anti-collapse drawer.

A drawer is a household used in a home or office, and a plurality of drawers are installed in a stacked structure so that they can be taken out while accommodating clothes, office supplies, and various other daily necessities.

In order to safely store the stored items, the drawer opens and closes the drawer through a lock device of a known type. Hereinafter, a related related art configuration will be described.

The drawer locking device according to the related art generally has a plate provided on one side of the storage body, a first intermittent portion protruding from one side of the elevating base plate and interfering with the key locking portion, a second intermittent portion formed below the first intermittent portion, And a second intermittent portion for engaging and disengaging the second intermittent portion.

According to this conventional configuration, as the key lock portion is rotated by the key, the first intermittent portion is interfered with and moves upward, and by moving the plate upward due to such an action, the entire drawer is interrupted so as not to be drawn out collectively. Then, the key is rotated in the opposite direction to move the first intermittent part to the lower side, so that the plate moves downward together to release the locked state.

However, in the prior art relating to the drawer or all the conventional arts, there is a fatal problem due to the structural problem that the drawers are not drawn out or all are drawn out due to the switching of the locking state. For example, When a large contents are stored, the weight of the drawer is weighted forward unexpectedly due to the change of the position of the drawer opened in multiple, and the drawer is tilted or turned over, thereby causing various safety accidents.

Registration Utility Model Bulletin No. 0208121 (October 12, 2000) Patent Registration No. 0480156 (Apr.

Disclosure of the Invention Problems to be Solved by the Invention It is an object of the present invention to improve the overall structure of a drawer to prevent a drawer from being pulled out at the same time, as well as a basic locking function of a drawer, .

In addition, another object of the present invention is to provide a preventive function selectively in addition to the locking function.

Another object of the present invention is to simultaneously determine the locking of other drawers by the movement of the drawer which is slid out in the unlocked state.

Another object of the present invention is to contribute to prevention of turning by arbitrarily adjusting the degree of opening of the drawer so that the drawer is not opened excessively.

In order to achieve the above-mentioned object, the construction of the selective anti-collapse drawer 100 according to the present invention is as follows.

The upper selective detachable drawer cabinet (100) includes a main body (1) in which the rails (2) are fixedly arrayed in a layered manner at positions corresponding to drawers; Several drawers (10) slidingly guided by the main rail; A key operation unit (20) for allowing the withdrawal of the drawer; An operation pin 72 protruding from the upper end of the body and caused to move up and down with respect to the body by interference with the key operation unit 20, And a restraining pin (73) protruding from the body in a position corresponding to the number of drawers and interfering with the stopper (11) of the side of the drawer by the upward and downward movement of the body by the operating pin, ; In the state of being unlocked by the key operation unit 20, by the individual slide pull-out action of the drawer 10, the door is inserted into the receiving portion 6 on the other side of the main body so that locks of the neighboring other drawers can be determined, And a lift pin (77) formed at a portion corresponding to the lock pin of the lock member and protruding from the body at a point lower than the horizontal line position of each lock pin; A control block 40 is provided which is connected to at least one side of the drawer so that the drawing range of the drawer is adjusted as it interferes with the elevating pin 77 of the falling prevention means or the restraining pin 73 of the locking member in the withdrawing process of the drawer, ;

The elevating pin 77 of the upper falling prevention means is guided along the elevating guide rail 80 on the side of the drawer to cause the body 78 to move up and down and to be pulled out by another drawer stopping piece 90 Respectively.

The upper control block 40 connects the elevator guide rails 80 of the drawer to be drawn out by means so that the drawing range of the drawer can be adjusted by the elevating pins 77 of the falling prevention means, Or due to interference of the locking pin (73) of the locking member.

At this time, the upper restraining pin 73 and the elevating pin 77 extend to overlap the stopper 11 and the elevation inducing rail 80, respectively, and the upper restraining pin 73 has a stopper 11, The upper and lower lifting pins 77 are guided by the lifting and lowering guiding rails 80 on the side of the drawer and the position change is determined and the body lifting is induced by one pulling out operation And simultaneously causing the slide of the other drawer to be totally cut off while simultaneously rising on the same line of the stop piece 90 formed on the side of each drawer.

Particularly, the upper control block 40 includes a fitting protrusion 41 fixed to a partitioning hole 9 formed at an upper end of a drawer, a cutout surface 42 for receiving a lift-inducing rail 80 on the side of the drawer, And a through hole (43) for receiving and holding the fitting piece (99) protruding from below the elevation induction rail.

In this case, the upper and lower guiding rails 99 and 9 are positioned in the same vertical line, and the upper and lower guiding rails 80 and 90 are formed at equal intervals in the longitudinal direction of the lifting guide rail 80, And to allow the degree of opening of the drawer to be selected.

According to the present invention constructed as described above, it is possible to selectively adopt the predetermined preventing means in accordance with the user's intention or convenience of use by separately providing the locking members and the preventing means corresponding to each other in one body, thereby being more effective .

Particularly, in the present invention, since the degree of opening of the drawer can be variously adjusted according to the user's selection so that the individual drawer is not excessively opened more than necessary, an advantage of satisfying the conduction phenomenon resulting from the sagging is expected.

In addition, the present invention improves the related structure of an existing drawer which is opened or locked in a multi-stage drawer, thereby providing a basic locking function of the drawer and a safety function for preventing two or more drawers from sliding out simultaneously It exhibits the effect of being protected from safety accident such as the turning of the drawer.

In addition, according to the present invention, locks of other drawers are simultaneously determined only by the movement of the drawer which is pulled out from the slide in the unlocked state. This not only suppresses unnecessary withdrawal of the drawer but also causes the draw- The multi-opening of the drawer can be prevented without any additional means, thereby maximizing the efficiency of the function including the simplification of the structure.

BRIEF DESCRIPTION OF THE DRAWINGS Fig. 1 is a louver perspective view constituted by a preferred embodiment of the present invention; Fig.
Fig. 2 is an exploded perspective view of the control block shown in Fig. 1, for example. Fig.
Figure 3 is another elevational perspective view of a preferred embodiment of the present invention;
Figs. 4 to 8 are conceptual diagrams showing in detail the relevant configuration of the drawer in the present invention; Fig.
9 to 16 are sectional views schematically showing an embodiment of a drawer according to the present invention.

BRIEF DESCRIPTION OF THE DRAWINGS The above and other features and advantages of the present invention will become more apparent from the following description taken in conjunction with the accompanying drawings, in which: FIG.

BRIEF DESCRIPTION OF THE DRAWINGS The advantages and features of the present invention, and how to accomplish them, will become apparent by reference to the embodiments described in detail below with reference to the accompanying drawings. The present invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the invention to those skilled in the art. To fully disclose the scope of the invention to those skilled in the art, and the invention is only defined by the scope of the claims. And throughout this specification, like reference numerals refer to like elements throughout.

The present invention is directed to a series of drawer cabinets (100) in which drawer draw is performed.

First of all, according to the present invention, since the conventional structure in which only the simple locking function is given is actively improved, a single drawer is pulled out even in the locked state by the key operation, The present invention relates to an optional anti-collapse drawer 100 in which a draw-out range for each drawer is arbitrarily adjusted, in addition to a predetermined means for preventing an excessive occurrence of drawer opening, .

As shown in FIGS. 1 to 16, in the selective anti-collapse drawer 100 proposed in the present invention, one-piece means for interlayer interlocking is employed in order to prevent falling, and by this differentiated means, In addition to the basic locking function, an inhibition function is added to determine whether or not the door is locked by interlocking with the individual actions of the drawer.

In addition, according to the present invention, it is possible to further contribute to the prevention function by adopting a predetermined control block (40) for controlling the drawer to prevent excessive withdrawal. By proposing the detachable structure of such a control block, You can freely adjust the drawing range of the drawer.

The upper selective detachable drawer cabinet 100 includes a main body 1 on which the rails 2 are fixedly arranged at intervals corresponding to the drawers and several drawers 10 having slide movement independently and guided by the main rails, A key operation unit 20 for allowing the drawer to be moved in and out, and a locking member for controlling the slide movement of the drawer due to the switching of the position of the key operation unit.

Each of the opposite surfaces and the other surfaces of the stomach body 1 includes the locking member and the conductive preventing means formed in a one-to-one correspondence with each other.

In order to control the multi-opening as described above, the top falling prevention means is fastened at a shape and position corresponding to the lock member, and by the individual slide pull-out action of the drawer 10 in the unlocked state by the key operation unit 20 So that the lock of the neighboring other drawer is determined.

The upper locking member may be divided into a body 71, an actuating pin 72 and a restraining pin 73. More specifically, the upper locking member may be integrally formed with the accommodating portion 5 on one side of the main body 1, An operation pin 72 protruding sideways from the upper end of the body to cause the body to move up and down depending on whether the key operation unit 20 is interfered with the operation pin 72, And a restraining pin (73) interfering with the stopper (11) on the side of the drawer due to the upward and downward movement of the body by the operating pin and restraining the slide of the drawer from being pulled out.

In particular, the present invention further comprises at least one control block (40) which can be engaged with both sides of the drawer.

Since the upper control block 40 interferes with the elevating pin 77 of the detachment preventing means or the restraining pin 73 of the locking member during the withdrawing process of the drawer, the drawing range of the drawer is adjusted. .

The upper body 1 is provided with a plurality of drawers in which a plurality of drawers in which clothes, office supplies or household goods are housed are arranged in a stacked structure. Are formed transversely corresponding to the number of drawers, and a key operation portion 20 for controlling the opening and closing of the drawer is formed on the whole surface.

The upper accommodating portion 5 is formed in an end portion of the inner side surface of the main body in order to internally accommodate the body 71. The body integrally moves up and down in a state constrained to the accommodating portion to allow the drawer 10 to be pulled out do.

Preferably, only the operation pin 72 and the restraining pin 73 extending from the body protrude from one surface of the main body 1 by disposing the body 71 in a space provided by the upper accommodating portion 5 The locking action through the actuating pin and the constraining pin is performed organically. The receptacle 5 is formed on the other surface of the main body as described above. In order to accommodate the overturn prevention means of the present invention, the detailed description will be given below.

The upper key manipulation part 20 is a known element that allows the vertical position of the actuating pin 72 to be varied by changing the direction of the key, thereby determining whether the drawer 10 is unlocked or not. The key operation unit 20 does not determine the individual opening and closing of the drawer but locks or opens all of the stacked drawers at a time. In the present invention, the locking of the drawer can be switched in the unlocked state by the key operating unit An improved structure was adopted.

The upper stopper 11 is a general element formed on the side of the drawer so that the drawer is not allowed to be drawn out. The shape of the upper stopper 11 may be a shape bent at a certain angle as shown in the figure, It is not limited to the shape of the figure but can be provided in various shapes.

The stopper 11 is interfered with the restraining pin 73 to restrict the draw-out of the drawer. At this time, the restraining pin causes the position rise due to the upward movement of the entire body 71, .

The upper locking member has the same concept as a conventional key bar. Since the technical idea relating to the key bar is well known, further detailed description will be omitted.

In the present invention, the conduction preventive means proposed by the present invention comprises a body (78) which is inserted into the accommodating portion (6) on the other surface of the body and secures a vertical flow range, And a lift pin 77 projecting laterally on the body at a point lower than the horizontal line position of the lifting pin 77. [

In other words, the upper lifting pin 77 is guided along the lifting guide rail 80 on the side of the drawer to cause the body to move up and down so that it is interfered by the other drawer stopping pieces 90 other than the pulled-out drawer.

The upper accommodating portion 6 is formed at the other side of the main body on the other surface in order to accommodate the body 78. The body is vertically moved in the state of being constrained to the accommodating portion to allow the drawer 10 to be pulled out do.

The body 78 is recessed in the space provided by the upper accommodating portion 6 so that only the elevating pin 77 extending from the body protrudes from the other surface of the body 1, The lock operation of the drawer is organically executed.

In addition, the elevation of the upper body and the elevating pin can be realized through a lifting induction rail 80 to be described later, which will be described in detail with reference to the related drawings.

As shown in the figure, the top stop piece 90 is a general element formed on the side of the drawer so that the drawer is not allowed to be pulled out. The shape of the top stop piece 90 may be a shape bent at an angle like the stopper 11, It is sufficient that the pin 77 can be interfered with.

The stopper piece 90 is interfered with the lifting pin 77 to limit the pulling-out of the drawer. At this time, the lifting pin causes the position rise due to the upward movement of the entire body 78, Can be overlapped.

That is, the drawer that is slid out of the upper drawer 10 moves the lifting pin 77 corresponding to the drawer upward to induce the lifting of the body 78, And are arranged in the same line as the stop piece 90 of the drawer, thereby preventing multiple openings.

As a result, the upper restraining pin 73 and the elevating pin 77 extend laterally to overlap the stopper 11 and the elevation inducing rail 80, respectively. The upper restraining pin 73, The upper and lower lifting pins 77 are guided by the lifting and lowering guide rails 80 and the position change is determined and the body lifting is induced by one drawer lifting action So that the slide of the other drawer is entirely blocked while simultaneously rising on the same line of the stop piece 90 formed on the side of each drawer.

The upper and lower guide rails 80 include an introduction line 81 for slidably guiding the lift pins 77 for pulling out the drawer in the unlocked state by the key operation unit 20, A switching line 82 for guiding the ascending of the restraining pin 73 while being slidably guided by the ascending and descending pin and a lifting and lowering pin 82 at a predetermined height so that the stopping piece 90 of the other drawer and the ascending and descending pins are arranged on the same line, And a lock line 83 for providing a slide path for the user.

The division structure of the above-mentioned lift-induction rail 80 is for indicating that the fall-prevention pin 77 according to each line is positioned to prevent the fall-prevention function. For example, in the process of sliding the elevating pins along the elevating guide rail formed on the side of the drawer, the entire body 78 is lifted or downward due to the step of each line, which is shown in detail in FIGS. 9 to 16 .

Wherein the upper stop piece 90 is located above the path provided by the introduction line 81 and the upper conversion line 82 is positioned rearward relative to the forming position of the stop piece 90. [

That is, when pulling out one of the drawers 10, the corresponding drawer is freely slid on the elevating pin 77 without interfering with the stopping piece 90. After the drawing of the drawer of a certain interval progresses, 82 and the locking line 83, the lifting pins rise up on the same line as the stoppers of the other drawers, interfering with each other, thereby locking the other drawers.

Therefore, according to the present invention, since the stop piece 90 is positioned on the introduction line 81, the position of the lift pin 77 is prevented from being changed at the time of pulling out the drawer, And is gradually moved upward by the step provided by the conversion line and superimposed on each drawer stopping piece 90. As shown in Fig.

Preferably, the upper conversion line 82 and the lock line 83 are positioned within a range in which the lift pin 77 can rise up on the same line of the respective stop piece 90 in the unlocked state by the key operation unit 20 The upper step should be formed.

In the meantime, the upper control block 40 is connected to the elevation guide rail 80 of the drawer to be drawn out by means, and the draw-out range of the drawer according to the engagement position on the elevation induction rail is the elevation pin 77 or the restraining pin 73 of the locking member.

To this end, the upper control block 40 includes a fitting protrusion 41 fixed to a partitioning hole 9 formed at an upper end of the drawer as shown in FIG. 1, and a lifting and guiding rail 80 on the side of the drawer And a through hole 43 for receiving and holding the fitting piece 99 protruding from below the elevation guide rail.

The upper partitioning hole 9 is for partitioning and knitting the inside of one drawer into several places, and a predetermined partition (not shown) is selectively installed in the corresponding partitioning hole formed at equal intervals in the longitudinal direction of the drawer, It is possible to divide.

The control block 40 of the present invention forms a fitting protrusion 41 that can be firmly held in position by interposing in the partitioning hole 9. The fitting protrusion 41 is not limited to the shape shown in the drawing It is enough that the form can be pulled into the partitioning hole and fixed.

Preferably, the shape of the upstanding projection portion 41 is a triangular shape in which both side inclined planes are formed. This is for the purpose of positively suppressing entry into the partitioning hole 9 and departure to the opposite direction.

The upper incision surface 42 is a component for fitting and restraining the lifting guide rail 80 as described above, and the upper through-hole 43 is configured for engaging the fitting piece 99 formed in the drawer.

The upper engaging piece 99 is protruded below the lifting induction rail 80 and is fitted into the through hole 43 of the control block so that the control block 40 can be more firmly positioned.

At this time, the upper and lower guiding pieces 99 and the partitioning holes 9 are positioned in the same vertical line, and are formed at equal intervals in the longitudinal direction of the elevating guide rail 80 to vary the fastening position of the control block 40 And to allow the degree of opening of the drawer to be selected.

9 shows a drawer in a locked state. As shown in the drawing, both the body 71 and the restraining pin 73 are moved upwardly as the actuating pin 72 is upwardly supported by the key operating portion 20, Lt; / RTI >

At this time, the restraining pin 73 is positioned in the same line as the stopper 11 formed on the side of the drawer to cut off the draw of all the drawers 10 at all.

FIG. 10 shows the downward movement of the body 71 by the key operation unit 20 in the state of FIG. 8, so that the support force acting on the operation pin 72 is canceled by the switching of the key operation unit, And is lowered in the space of the accommodating portion (5).

As the restraint pin 73 that cuts off the stopper 11 of each drawer is also downward by this action, all the drawers 10 are placed in a free state, and each drawer can be slid out by user's selection.

FIGS. 11 to 16 sequentially illustrate the process of locking another drawer by pulling out one of the drawers 10, and the pull-out of the drawer is restricted by the action of the control block.

According to the related drawings, the elevating pin 77 enters the switching line 82 of the elevating guide rail in the process of sliding the first drawer in the slide direction, thereby raising the position of the entire body 78, The corresponding lift pins 77 are positioned on the same line of the respective stop pieces 90 and are locked.

That is, as the drawer to be drawn out is slid in the unlocked state, the lifting pin 77 that enters into the switching line 82 is naturally raised by the corresponding step, which is followed by the rising of the body 78, And the other raised and lowered pins are simultaneously raised upward and interfered with the stop piece 90 of each drawer.

As a result, the present invention relies not only on a specific drawer to set the fall prevention function but also to prevent drawers of other drawers in connection with the individual draw-out operation of each drawer, and does not limit the sequence or operating conditions.

Particularly, as shown in FIGS. 11 to 12, the control block of the present invention is interfered by the restraining pin 73 in the withdrawing process of the drawer. Since this interference is involved in the drawer movement and suppresses withdrawal of the drawer, Actively prevent. At this time, the degree of opening of the drawer can be selectively adjusted by variously setting the joining position of the control block 40. [

15 to 16, the control block 40 of the present invention is interfered by the lifting pin 77 in the withdrawing process of the drawer so that the drawer is moved between the lifting pin 77 and the control block 40, The slide movement is restricted by mutual interference of the control block, and the degree of opening can be adjusted variously according to the situation by restricting movement of the drawer by the control block.

The elevating pin 77 proposed in the present invention is formed in an annular shape so that the contact force between the elevating guide rail 80 and the elevating guide rail 80 is maintained. More preferably, a predetermined elastic cap Can be further configured.

According to the present invention constructed as described above, it is possible to selectively adopt the predetermined preventing means in accordance with the user's intention or convenience of use by separately providing the locking members and the preventing means corresponding to each other in one body, thereby being more effective .

Particularly, in the present invention, since the degree of opening of the drawer can be variously adjusted according to the user's selection so that the individual drawer is not excessively opened more than necessary, an advantage of satisfying the conduction phenomenon resulting from the sagging is expected.

In addition, the present invention improves the related structure of an existing drawer which is opened or locked in a multi-stage drawer, thereby providing a basic locking function of the drawer and a safety function for preventing two or more drawers from sliding out simultaneously It exhibits the effect of being protected from safety accident such as the turning of the drawer.

In addition, according to the present invention, locks of other drawers are simultaneously determined only by the movement of the drawer which is pulled out from the slide in the unlocked state. This not only suppresses unnecessary withdrawal of the drawer but also causes the draw- The multi-opening of the drawer can be prevented without any additional means, thereby maximizing the efficiency of the function including the simplification of the structure.

1. Body
2. Rail
5,6. Receiving portion
9. Partition hole
10. Drawer
11. Stopper
20. Key control unit
40. Control block
41. Fitting projections
42. Incision plane
43. Through hole
71. Body
72. Operation pin
73. Restraint pin
77. Lift pin
78. Body
80. Induction rail
90. Stop
99. Fitting
100. Chest of drawers

Claims (5)

A main body (1) in which the rails (2) are arranged in a fixed manner and arranged at intervals corresponding to the drawers;
Several drawers (10) slidingly guided by the main rail;
A key operation unit (20) for allowing the withdrawal of the drawer;
An operation pin 72 protruding from the upper end of the body and caused to move up and down with respect to the body by interference with the key operation unit 20, And a restraining pin (73) protruding from the body in a position corresponding to the number of drawers and interfering with the stopper (11) of the side of the drawer by the upward and downward movement of the body by the operating pin, ;
In the state of being unlocked by the key operation unit 20, by the individual slide pull-out action of the drawer 10, the door is inserted into the receiving portion 6 on the other side of the main body so that locks of the neighboring other drawers can be determined, And a lift pin (77) formed at a portion corresponding to the lock pin of the lock member and protruding from the body at a point lower than the horizontal line position of each lock pin;
A control block 40 is provided which is connected to at least one side of the drawer so that the drawing range of the drawer is adjusted as it interferes with the elevating pin 77 of the falling prevention means or the restraining pin 73 of the locking member in the withdrawing process of the drawer, And an anti-warp screen,
The upper control block 40

A fitting protrusion 41 having a triangular shape extending in a path from the front end to the rear end so as to be engaged with the partition hole 9 formed at equal intervals to the upper end of the drawer and an elevation induction rail 80 , And a through hole (43) for receiving and receiving the fitting piece (99) protruding from below the elevation induction rail Optional anti-collapse drawer.
The method according to claim 1,
The elevation pin 77 of the upper falling prevention means is guided along the elevation induction rail 80 on the side of the drawer to cause the body 78 to move up and down so that the drawer stop piece 90 Interfering,
The upper control block 40 clamps the elevation induction rail 80 of the drawer to be drawn out by means so that the drawing range of the drawer can be adjusted by the elevation pin 77 or the lock (73) of the member to adjust the draw-out range for each drawer.
3. The method according to claim 1 or 2,
The upper restraining pin 73 and the elevating pin 77 extend to overlap the stopper 11 and the elevating guide rail 80,
The upper restraining pin 73 switches the opening / closing of the drawer while determining whether the stopper 11 overlaps with the upper / lower position,
The upper and lower lift pins 77 are guided by the lifting and lowering guide rails 80 on the side of the drawer and the position change is determined. As a result of the upward movement of the body due to one drawer pulling action, , And the slide of the other drawer is entirely cut off.
delete The method according to claim 1,
The upper and lower guiding rails 99 and 9 are positioned in the same vertical line and are formed at equal intervals in the longitudinal direction of the elevating guide rail 80 to vary the fastening position of the control block 40, Wherein the opening degree of the drawer including the selection of the degree of opening of the drawer is arbitrarily adjusted.

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