KR20180015453A

KR20180015453A - Locking device of multi-drawer cabinet

Info

Publication number: KR20180015453A
Application number: KR1020160098988A
Authority: KR
Inventors: 김영갑
Original assignee: 김영갑
Priority date: 2016-08-03
Filing date: 2016-08-03
Publication date: 2018-02-13

Abstract

The present invention relates to a locking device for a multi-stage drawer of a new structure which is simple in structure and reliable in operation and which is vertically installed inside a side wall (3) adjacent to an opening (2) of a case (1) The stopper 14 is mounted on the outer side of the side wall 8 of the drawer 6 and the stopper 14 is mounted on the stopper 14, And a stepped portion 22 which gradually slides down or rises in the vicinity of the outer cover 7 of the drawer 6 and a guide rail And a locking piece 28 protruding from an upper portion or a lower portion of a stepped portion 22 of the guide rail 20 of the side wall 8 of the drawer 6.

Description

{Locking device of multi-drawer cabinet}

The present invention relates to a locking apparatus for a multi-stage drawer, and more particularly, to a locking apparatus for a multi-stage drawer with a new structure which is simple in construction and easy to manufacture and reliable in operation.

When two or more drawers are pulled out simultaneously from a file box or other multi-stage drawer, the center of gravity of the drawer may be pulled forward and the drawer may fall down, It is desired that the drawer be provided with a locking device which, when one drawer is pulled out, causes the other drawers to remain closed without being withdrawn.

As a conventional locking device for a multi-stage drawer, there is known a domestic utility model registration No. 20-0437406, which is characterized in that a drawer, which is stacked in a multi-stage at the rear of a drawer, And a stopper of a predetermined type is mounted on a rear end of each drawer. When a user takes out one of the drawers, the rotating bar is elastically rotated and the rotating bar is separated from the stopper of the drawer engaged with the rotating bar The stoppers mounted at the rear of the other drawers are instantly released from engagement with the rotary bar. However, due to the resilient restoring force of the spring, the rotary bar resiliently returns to the stoppers of these other drawers, The withdrawal is stopped.

However, in the conventional multi-stage drawer locker, when the drawer is pulled out, when the drawer is retracted and the other one of the drawers is pulled out, There was a disadvantage that a large amount of operation noise was generated at the time of withdrawing the drawer in the office requiring the quietness. In addition, in order to move the rotary bar and the fixing bar away from the stopper engaged with the rotary bar and return the same to the original position by the elastic force of the spring and precisely perform the locking action with respect to the other drawers, In addition, the mounting positions of the stoppers in the vertical direction of the respective stacked drawers must be precisely matched. Therefore, there is a problem in that the manufacture is troublesome. In the case where precise processing or precise positioning is not performed, There has been a problem that there is a high possibility of malfunction.

Korean Utility Model Registration No. 20-0437406 (2010.7.11.23)

The present invention has been made in view of the problem of the locking device for a multi-stage drawer as described above. The present invention is a new structure in which a detailed structure is simple and easy to manufacture, operation reliability is high, In order to provide a locking device for a multi-stage drawer.

According to an aspect of the present invention, there is provided an electronic device comprising a case 1 having an opening 2 at the front, a plurality of rails 4 that are arranged in a multi-stage and horizontally extended inside the side wall 3 of the case 1, Stage drawer including a plurality of drawers (6) which are inserted or withdrawn through the openings (2) of the case (1) and which slide along the respective rails (4) A lifting bar 12 vertically installed inside the side wall 3 adjacent to the opening 2 of the case 1 and spaced apart from the stopper 14 so as to protrude in a direction facing the drawer 6; A horizontal extension portion 21 provided outside the side wall 8 of the drawer 6 and slidably in contact with the stopper 14 or extending along the side wall 8, (20) including a step portion (22) that gradually descends or rises in the vicinity of the outer cover (7) of the guide rail (6) The locking device of the multi-stage drawer, comprising a step of including a latching member (28) projecting from the top or bottom of the step portion 22 of the guide rail 20 of the side wall 8 of group drawer (6) is provided.

According to another aspect of the present invention, the stepped portion 22 of the guide rail 20 is formed as a lower portion lower than the horizontal extending portion 21, and the engaging piece 28 is provided on the upper portion of the stepped portion 22 And the stopper (14) is mounted on the guide rail (20) and is in rolling contact with the stopper (14).

According to another aspect of the present invention, the lifting bar 12 is concealed by a cover member 16, and a vertical slot 18 is formed in the cover member 16 to guide the lifting and lowering of the stopper 14 And a locking device for locking the multi-stage drawer.

According to the present invention, a lifting bar (12) having a plurality of stoppers (14) protruded is provided inside a case (1) of a multi - stage drawer. On the side wall (8) side of each drawer A guide rail 20 having an extended portion 21 and a stepped portion 22 is provided and at the upper portion or the lower portion of the step portion 22 of the drawer 6, The stopper 14 on the side of the case 1 is positioned on the step 22 of the guide rail 20 of the drawer 6 through the simple structure providing the drawer 6 with the drawer 6 closed, When the drawer 6 is pulled out, the drawer 6 is pulled up by the stopper 14 from the step portion 22 along the horizontal extending portion 21 The stopper 14 of the other drawers is raised or lowered to be flush with the engaging piece 28. When the drawer is pulled out, It is possible to effectively prevent only one drawer from being pulled out and at the same time pulling out two or more drawers at the same time. As a result, collapse of the drawer due to fluctuation of the center of gravity of the drawer, It is possible to prevent accidents or breakage of objects.

When the drawer 6 is closed and the elevating bar 12 is moved downward by the lowering portion lower than the horizontal extending portion 21 and the engaging piece 28 is disposed on the upper portion of the step portion 22, The stopper 14 of the lifting bar 12 rides on the guide rail 20 and rises to the horizontally extending portion 21 when the drawer 6 is pulled out by lowering to the lower position of the stepped portion 22 due to its own weight, Even if a separate elastic spring or the like is not attached to the elevating bar 12, it can be appropriately lifted and lowered, so that the locking action is smoothly performed, thereby reducing the number of parts, simplifying the structure and simplifying operation. If the stopper 14 is formed of a roller, smooth rolling contact is performed along the guide rail 20, so that the opening and closing operation is smooth and noise is reduced.

According to the present invention, the vertical bar 18 is concealed by the cover member 16 and the cover member 16 is provided with a vertical slot 18 for guiding and regulating the movement of the stopper 14, Even if the drawer 6 is separated from the case 1 of the drawer case, the structure inside the drawer is flat and has a neat appearance. By guiding and regulating the movement of the stopper 14 by the long hole 18, Lt; / RTI >

1 is a schematic view of a multi-stage drawer case according to an embodiment of the present invention;
Fig. 2 is a view showing a state of separation of the drawer of the embodiment
Fig. 3 is a schematic view showing a state in which all the drawers of the above embodiment are closed
Fig. 4 is a diagram showing a state in which one drawer of the above embodiment is taken out

Hereinafter, preferred embodiments of the present invention will be described with reference to the drawings. FIG. 2 is a sectional view of a drawer. FIGS. 3 and 4 are sectional views showing a state in which both the drawers are closed and one drawer is pulled out to be.

As shown in the drawings, according to the present invention, there are provided a case 1 having an opening 2 at the front and a plurality of drawers 6 (see FIG. 1), which are stacked and stacked in multiple stages to be inserted and withdrawn through the front opening 2 of the case 1 ) Is provided. A rail 4 extending horizontally is arranged in the inner side of the side wall 3 of the case 1 and a side wall 8 of the drawer 6 including the outer side cover 7 and the side wall 8 is provided correspondingly. And a rail bar (9) slidably fitted in the rail (4). The rails 4 and the rail bars 9 may be used in various forms, and balls or bearings may be embedded therein for smooth sliding operation.

1, the lifting bar 12 is vertically extended on the inner side of the side wall 3 adjacent to the opening 2 of the case 1, Respectively. A stopper 14 in the form of a roller or a bearing is protruded from the lifting bar 12 at a predetermined interval. The lifting bar 12 is concealed by the cover member 16 and is raised and lowered within the cover member 16. [ In the cover member 16, a vertical slot 18 is formed in which the stopper 14 protrudes to the outside. Accordingly, when the lifting bar 12 is lifted and lowered, the stopper 14 is lifted and lowered along the elongated hole 18.

2, a guide rail 20 is provided on the upper portion of the rail bar 9 on the outer side surface of the side wall 8 of the drawer 6. As shown in FIG. The guide rail 20 includes a horizontally extending portion 21 that extends along the side wall 8 and a stepped portion 22 that gradually descends from the vicinity of the outer cover 7 of the drawer 6. A stopper 14 on the side of the case 1 is mounted on the upper surface of the guide rail 20 so as to slide relatively while rolling. At the upper portion of the step portion 22 of the guide rail 20, a latching piece 28 protruding at approximately the same height as the horizontal extending portion 21 is formed.

Although the stepped portion 22 is illustrated as being lowered in the horizontal extending portion 21 in the illustrated embodiment, the stepped portion 22 may be positioned so as to be higher than the horizontal extending portion 21 as the case may be. In this case, the engaging piece 28 is disposed below the step portion 22, and a spring is mounted on the lifting bar 12 so as to be pressed to the raised position. As such, the shape of the guide rails 20 and the arrangement of the engaging pieces 28 can be appropriately changed.

3, the stopper 14 on the side of the case 1 is opened and closed by the drawer 6 in a state where all the drawers 6 are completely housed in the case 1 and closed, The stopper 14 is positioned at the lower step 22 of the guide rail 20 of the drawer 6 so that the lift bar 12 is positioned at its lowered position by its own weight, So that there is no obstacle that interferes with the draw-out of the drawer 6. Therefore, the user can draw out any drawer 6 and open it.

4, the stopper 14 on the side of the case 1 ascends from the stepped portion 22 of the guide rail 20 while the user pulls out the specific drawer 6 and pulls out the horizontal extension portion 21, and the drawer 6 is taken out as it is. At this time, the stopper 14 corresponding to the remaining drawer 6 rises together with the elevating bar 12 and is located at a height where the retaining pieces 28 of these drawers 6 are located. Accordingly, when any one of these drawers is pulled out to pull out the drawer 6, the latching piece 28 of the drawer 6 is caught by the corresponding stopper 14 and the drawer 6 is prevented from being pulled out. As described above, according to the present invention, when one drawer is pulled out, the withdrawal of the other drawer is prevented, so that the center of gravity due to the drawing of two or more drawers and the falling of the center of gravity, Can be prevented.

Claims

A plurality of rails 4 that are vertically arranged and disposed in multiple stages inside the side wall 3 of the case 1 and a plurality of rails 4 that extend horizontally in the side walls 3, And a plurality of drawers (6) inserted or drawn through the openings (2) of the case (1) and slidable along the respective rails (4) A lift bar 12 vertically installed inside the side wall 3 adjacent to the opening 2 and spaced apart from the stopper 14 so as to protrude in a direction facing the drawer 6, A horizontal extension portion 21 which is provided outside the stopper 14 and slides in contact with the stopper 14 and extends along the side wall 8 and the outer cover 7 of the drawer 6 A guide rail 20 including a step portion 22 which is gradually lowered or raised in the vicinity of the side wall 8 of the drawer 6, The locking device of the multi-stage drawer comprising the clamping members (28) projecting from the top or bottom of the step portion 22 of the rail 20.

The guide rail according to claim 1, wherein the stepped portion (22) of the guide rail (20) comprises a lower portion lower than the horizontal extending portion (21), and the engaging piece (28) , And the stopper (14) is formed of a roller and mounted on the guide rail (20) to be in rolling contact with the guide rail (20).

The elevator according to claim 1 or 2, wherein the lifting bar (12) is concealed by a cover member (16), and the cover member (16) ) Is formed on the outer periphery of the multi-stage drawer.