JPH0649788Y2 - Double drawer prevention device for drawers in Kavinet - Google Patents

Description

[Detailed Description of the Invention] [Industrial field of application] The present invention is one in which two or more drawers are provided in the cabinet body so as to be movable back and forth, and when one drawer is pulled out, the other drawer is pulled out. The present invention relates to the structure of a double withdrawal prevention device that disables movement.

[Problems to be solved by conventional techniques and devices]

Conventionally, when one of the drawers installed in the main body of the cabinet is pulled out, the other drawers cannot be pulled forward, the center of gravity moves forward, and the entire cabinet is moved forward. As a prior art of a so-called double withdrawal preventing device that prevents the device from falling in the direction, for example, in Japanese Utility Model Publication No. 51-45394, the heights of the engaging pin and the locking piece are different on the outside surface of the drawer of each stage, In addition, the locking pin is provided at the front position and the locking piece is projected at the rear position, and the rotary shaft erected on the inner surface of the cabinet body is provided with a locking lever corresponding to the engaging pin and a locking piece corresponding to the locking piece. The lever and the lever are fixed to the rotating shaft with a proper center angle, and the engaging pin of the drawer that moves forward contacts the engaging lever to rotate the rotating shaft, and this rotation causes the locking lever to move. Enter the rear of the moving path of the lock of the drawer that is moving forward It is disclosed that the stopper is provided so as to enter the front of the locking piece in the stopped drawer together with the stopper so that the locking lever entering in front of the locking piece in the stopped drawer does not rotate further. .

According to this configuration, the engaging pin and the engaging lever, which are components necessary for preventing double withdrawal, have a corresponding relationship, while the locking piece and the locking lever have a corresponding relationship, and further, the engaging pin and the locking lever have a corresponding relationship. Since it is necessary to attach the strips to the drawer at different heights, and to fix the engaging levers and the locking levers at different height positions in correspondence with each other, and to fix them to the rotary shaft, The parts are independent parts, and the mounting center angle between the engaging lever and the locking lever on the rotary shaft also enters the rear of the moving path of the locking piece of the drawer in which the locking lever is moving forward. Since it must be set so as to enter in front of the locking piece in the drawer that has stopped together, it is necessary to install each of the four parts while considering the positional relationship of the four parts in total. It was very cumbersome.

Moreover, since the mounting heights of the engaging pin and the locking piece provided on the drawer and the engaging lever and the locking lever are different from each other, a large space is required for that purpose.

SUMMARY OF THE INVENTION It is an object of the present invention to solve these problems of the prior art and provide a double-drawer prevention device having a simple structure.

[Means for Solving the Problems]

Therefore, in the present invention, in a cabinet that is provided with upper and lower multi-stage drawers in the cabinet body so as to be movable back and forth, a rotary shaft is arranged on the inside surface of the cabinet so as to face the drawer side plate of each stage. A stopper body capable of rotating integrally with the rotary shaft is fitted on the rotary shaft so as to be vertically slidable along the rotary axis at each height position corresponding to the drawer side plate portion of each stage. Each stopper body is supported so as not to fall, and a first locking arm and a second locking arm are projected on the outer circumference of each stopper body at a proper central angle, and are provided on the outer surface of each drawer side plate. Has a first kicking body projecting forward and a second kicking body projecting backward at a predetermined distance, while the first kicking body is provided in front of the first kicking body in the drawer in the pushed state.
The first rotation restricting position where the locking arm faces and does not rotate further rearward, and the first kicking body in the drawer moving forward contacts the first locking arm of the stopper body to move the rotation shaft. When the second rotation arm is rotated by a predetermined angle, the second locking arm located in front of the second kicking body in the drawer in the pushed state is prevented from further rotating in the forward direction. The angle regulating means configured to regulate the rotation position of the is provided in the cabinet body, and further, the second kicking body when moving forward of the drawer and the first and second kicking bodies when pushing in, The stopper body is configured to be pushed up by a predetermined dimension by coming into contact with the lower inclined portion of the first locking arm.

[Operation and effect of device]

According to this structure, the stopper body is integrally rotatable with respect to the rotation shaft provided on the inner surface of the cabinet body so as to be rotatable about the axis, and is vertically slidable along the axis. The first locking arm and the second locking arm are provided on the stopper body so as to have different center angles. On the other hand,
On the outer surface of the side plate of the drawer, a first kicking body and a second kicking body associated with the two locking arms of the stopper body are provided in a protruding manner. When the rotation shaft is rotated by a predetermined angle while coming into contact with the first locking arm of the stopper body, the second locking arm faces the front of the second kicking body in the drawer in the pushed state, and faces further forward. Since it does not rotate, the drawer in the pushed-in state can no longer be pulled out, and so-called double withdrawal can be prevented.

Further, since the two kicking bodies and the two locking arms in the present invention are provided at substantially the same height position, the second driving body of the drawer moving forward interferes with the first locking arm in the stop position. When doing so, the second kicking body comes into contact with the inclined surface of the lower surface of the first engaging arm, and the stopper body is raised as appropriate while the rotation of the stopper body and thus the rotation shaft is stopped. The insert can exit in front of the first locking arm.

Similarly, the second locking member of the pulling drawer is rotated in the forward direction to rotate the stopped first locking arm backward, but the first locking arm is rotated backward. When it becomes a state in which it does not rotate further backward at the stop position, the second kicking body comes into contact with the lower surface inclined portion of the first locking arm, and the stopper body and thus the stopper in the state where the rotation of the rotation shaft is stopped. By appropriately raising the body, the second kicking body retracts to the rear of the first locking arm, and then the first kicking body also raises the stopper body in the same manner, so that the first kicking body moves into the first engagement state. Since it retreats behind the stop arm, it can be restored to its original state.

In this way, since the two kicking bodies and the two locking arms are provided at substantially the same height position, the size of the component mounting space can be made smaller than in the conventional example in which the mounting heights are different. At the same time, since two stopper arms are provided on the stopper body in a protruding manner, the two stopper arms can be mounted all at once by simply fitting the stopper body onto the rotating shaft, which simplifies the mounting work. The effect of being able to do is produced.

It should be noted that, if the first kicking body and the second kicking body are integrally formed, the mounting work is further simplified and the structure of the device is also simplified.

〔Example〕

An embodiment of the present invention will now be described with reference to the drawings. In the drawings, reference numeral 1 is a cabinet body, and reference numeral 2 is a drawer arranged in the cabinet body 1 in multiple stages.
Each drawer 2 is suspended movably back and forth via a pair of left and right suspensions 3,3.

Although not shown, each of the suspensions 3 is suspended from a main body rail that is detachably attached to the reinforcing frames of the left and right side plates 4 and 4 of the cabinet body 1 and a ball of a rail portion of the main body rail, and Secured to the outer surface of the left and right side plates 2a of the drawer 2 which is provided with an intermediate rail having a rotating roller that regulates upward movement and a rotary roller that is suspended via a ball on the lower end rail portion of the intermediate rail and that regulates upward movement. It consists of a drawer rail.

Reference numeral 5 denotes a rotary shaft that is rotatably erected inside the side surface of the cabinet body 1 so as to face the outer surface of the side plate 2a of each drawer 2, and the rotary shaft 5 has a rectangular cross section.

A stopper body 6 is integrally rotatable on the rotary shaft 5 corresponding to the two drawers of each stage, and is vertically slidable along the axis of the rotary shaft 5. It is fitted.

Further, each stopper body 6 is supported by a support piece 7 fixed to the inner surface of the cabinet body 1 so as not to fall.

As shown in FIG. 2 and FIG. 4, the stopper body 6 is provided with a first locking arm 8 and a second locking arm 9 in a radially outward direction so that the central angles thereof are different by approximately 90 degrees in a plan view. The lower surface of the first locking arm 8 is projectingly provided, and is an inclined portion 8a that descends inward in the radial direction.

Reference numerals 10 and 11 are a first kicking body and a second kicking body which are provided on the outer surface of the side plate 2a of each drawer 2, respectively.
Is provided at the front position of the drawer 2 and the second kicking body 11 is provided at the rear position with a proper front-rear distance (L) therebetween.
It is formed integrally with an N type in a plan view.

Then, the first kicking body 10 in the drawer that moves forward
The rear surface of the first locking arm 8 of the stopper body 6 is abutted and pressed to rotate the rotary shaft 5 in the direction of arrow A by a predetermined angle θ, and at that time, the second kicking that is moving forward. While the second locking arm 9 enters the rear surface of the body 11,
The second locking arm 9 enters between the first kicking body 10 and the second kicking body 11 of the drawer 2 in the pushed state (stopped state) of the other stage.

Reference numeral 12 is a rotation angle restricting means for restricting the rotation shaft 5 from rotating further at a position rotated by an appropriate angle, and a locking piece 13 fixed to the rotation shaft 5 and protruding laterally. ,
A pair of front and rear stopper pieces attached to the inside of the cabinet body 1
14 and 15, and as shown by the solid lines in FIGS. 4 and 5, when the locking piece 13 contacts the front stopper piece 14,
The first locking arm 8 of the stopper body 6 faces the front of the first kicking body 10 of the drawer 2 in the pushed state (posture substantially orthogonal to the side plate 2a of the drawer in plan view), and the rotary shaft 5 is further rearwardly oriented. The rotation angle is regulated so as not to rotate in the (arrow B direction) (first rotation regulation position).

On the contrary, as shown by the alternate long and short dash line in FIGS. 4 and 5,
When the locking piece 13 comes into contact with the rear stopper piece 15, the first kicking body 10 of the drawer that moves forward comes into contact with the first locking arm 8 of the stopper body 6 so that the rotary shaft 5 is moved to a predetermined position. When rotated by an angle (θ), the second locking arm 9 positioned in front of the second kicking body 11 in the drawer in the pushed state is restricted so as not to rotate further forward (in the direction of arrow A) (No. 2 rotation restriction position). At this time, naturally the first
The locking arm 8 also does not rotate back and forth.

Reference numeral 16 is a posture holding means for holding the turning posture of each stopper body 6, and a pair of protrusions 17 and 18 are integrally provided on the outer peripheral surface of the stopper body 6 so as to integrally project.
An elastic locking piece 21 (made of a spring plate) having two recesses 19 and 20 at the front and rear is provided on the inner surface (side plate 4, etc.) so as to face the protrusion. However, the engagement state of one or two of the protrusions 17 and 18 and the recesses 19 and 20 is not so strong as to hinder the ascending action of the stopper body 6, which will be described later, but is loose.

Then, even if the upper end of the second kicking body 11 which moves forward comes into contact with the first locking arm 8 stopped at the second rotation restricting position, the first locking arm 8 and thus the stopper body. 6 does not rotate forward any further,
The lower surface inclined portion 8a of the locking arm 8 is pressed upward by the upper end of the second kicking body 11 to raise the stopper body 6 by an appropriate dimension (H), so that the second kicking body 11 and the first locking arm Configure to be able to get out in front of 8.

Similarly, when the drawer 2 is pushed in, the first and second kicking bodies come into contact with the lower surface inclined portion of the first locking arm that is stopped at the first rotation restricting position, so that the stopper The body is configured to be pushed up by a predetermined size.

In these cases, when the pushing of the kick body against the lower surface of the first locking arm 8 is released, the stopper body 6 descends to its original position by its own weight.

In this configuration, when the drawer 2 of any stage is moved forward, the first kicking body causes the first locking arm 8 of the stopper body 6 to rotate forward to move from the solid line state in FIG. 4 to the one-dot chain line state. To the first locking arm 8 stopped at that position (second rotation restriction position), the second kicking body
11 approaches and pushes the lower surface inclined portion 8a upward to raise the stopper body 6 and the second kicking body 11 can come out forward, so that the drawer 2 can be largely pulled out.

At this time, the second drawer 2 of the drawer 2 in the other stage in the pushed state
Since the second locking arm faces the front of the kicking body 11 and the rotary shaft 5 and thus the stopper body 6 do not rotate forward any further, it is possible to prevent the drawer of that stage from moving forward. Double drawer body to prevent double drawer 1
It is possible to prevent the forward fall of the vehicle.

FIG. 6 is an explanatory view of the operation when pushing the drawer 2 in the pulled-out state (direction of arrow B ₀ ). First, the first locking arm 8 is directed rearward (direction of arrow B) on the rear surface of the second kicker 11. And the lower surface inclined portion 8a of the first locking arm stopped at the first rotation restricting position is pushed upward by the upper end of the second kicking body 11 so that the second kicking body 11 is moved. It is possible to move backward from the stopper body 6 (see the chain line in FIG. 6) and then push up the first locking arm 8 and then the stopper body 6 at the upper end of the first kicking body 10 to enter the rear side. It is possible (see the chain double-dashed line in FIG. 6).

In addition, since it is necessary to return the first locking arm 8 to the rearward direction (direction of arrow B) by the second kicking body 11 that retracts (pushes), the stopper that is perpendicular to the longitudinal movement direction of the drawer 2 in plan view. The length of the second kicking body 11 toward the body 6 is the first
Since it is necessary to make the stopper body 6 longer than the riser body 10, the height of the upper end of the second riser body 11 is higher than that of the upper end of the first riser body 10 when the stopper body 6 has substantially the same rise dimension. Lower.

When the height positions of the upper end surfaces of both kicking bodies are the same, the amount of rise of the stopper body 6 naturally differs.

It goes without saying that the present invention can be applied to all drawers having a front end plate and, conversely, drawers having flip-up doors.

[Brief description of drawings]

The drawings show an embodiment of the present invention. FIG. 1 is a perspective view of a cabinet body, FIG. 2 is a perspective view of an essential part of a double drawer preventing mechanism, FIG. 3 is a sectional view of an essential part, and FIG. FIG. 5 is an explanatory view of the action of the drawer front movement shown in the sectional view taken along the line IV-IV in FIG. 5, and FIG.
FIG. 6 is a sectional view taken along line VV, and FIG. 6 is an explanatory view of the operation when the drawer is pushed in. 1 ... Cabinette body, 2 ... Drawer, 3 ... Suspension, 5 ... Rotating shaft, 6 ... Stopper body, 7 ... Supporting piece, 8 ... First locking arm, 9 ... Second member Stop arm, 10
...... First kicking body, 11 …… Second kicking body, 12 …… Rotation angle regulating means, 13 …… Locking piece, 14,15 …… Stopper piece, 16 …… Posture holding means, 17, 18 ... Protrusions, 19,20 ... Recesses.

Claims (1)

[Scope of utility model registration request] 1. A cabinet comprising a cabinet and a drawer having a plurality of upper and lower stages which are movable in the front-rear direction in the cabinet, wherein a rotating shaft is provided on an inner surface of the cabinet so as to face a drawer side plate of each stage. A stopper body capable of rotating integrally with the rotating shaft is provided so as to be vertically slidable along the rotating axis at each height position corresponding to the drawer side plate portion of each stage. Further, each stopper body is supported so as not to fall, and a first locking arm and a second locking arm are provided on the outer circumference of each stopper body so as to be spaced apart from each other by a suitable central angle, and the outer surface of each drawer side plate is provided. , The first kicking body is projected forward and the second kicking body is projected backward at a predetermined distance, while the first locking arm faces the front of the first kicking body in the drawer in the pushed state and further A first rotation restriction position that does not rotate backward and a drawer that moves forward When the first kicker in the stopper contacts the first locking arm of the stopper to rotate the rotary shaft by a predetermined angle, the first kicker positioned in front of the second kicker in the drawer in the pushed state. (2) A second rotation restricting position that prevents the locking arm from rotating further forward and an angle restricting means configured to restrict the rotating position of the rotating shaft are provided in the cabinet body, and further, the drawer. The second kick-in body when moving forward and the first and second kick-in bodies when pushed in contact with the inclined surface of the lower surface of the first locking arm, thereby pushing up the stopper body by a predetermined dimension. A double drawer withdrawal prevention device for a drawer in a cabinet, which is configured as described above.