JP2601880Y2 - Drawer withdrawal control device - Google Patents

Description

[Detailed description of the invention]

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a drawer drawer restricting device constructed by sliding a drawer box into a drawer body.

[0002]

2. Description of the Related Art Various examples of a structure in which drawer boxes are arranged in multiple stages on a drawer body so that the drawer boxes can be simultaneously controlled without giving specific examples have been proposed.

[0003] For example, one of them is Japanese Utility Model 4-324.
In the structure described in Japanese Patent Publication No. 65-64, a latch claw is projected from the rear end of a drawer box, and an engaging member for engaging and disengaging the latch claw is provided on a back wall portion of the drawer main body. The movement is regulated by a solenoid.

[0004]

In the above-mentioned prior art, the drawer box is pulled out by restricting the rotation of the engaging member so that the latch pawl does not come off from the engaging member. Since this restricting device is provided on the rear side of the drawer box, the depth width of the drawer body must be increased more than necessary.

[0005] The present invention has been devised for the purpose of providing a drawer restricting device for a drawer having a novel structure, for example, focusing on such points.

[0006]

[MEANS FOR SOLVING THE PROBLEMS] On the upper wall portion of the drawer body,
A swing plate that swings up and down of the drawer main body and whose swing is regulated by a locking device is provided, and at both left and right ends of the swing plate, a vertically moving rod that vertically moves along a side wall portion of the drawer main body is provided. A roller is rotatably pivoted on the vertical rod corresponding to the drawer box so as to correspond to the drawer box, the tread surface of the roller is brought into contact with and separated from the tread surface, and the locking metal which is urged to rotate in the contact direction is attached to the side of the drawer box. The locking device is provided with an engaging notch laterally provided at an intermediate portion of the rocking plate, a deadbolt for disengaging the engaging notch, and a plan for rotating the deadbolt. It consists of a solenoid with a jar.

[0007]

When the dead bolt is rotated by the plunger of the solenoid to engage with the engagement notch provided in the middle of the rocking plate, the rocking of the rocking plate is regulated, and the rocking plate is suspended from the rocking plate. The vertical movement of the link is restricted. At this time, even if an attempt is made to pull out the drawer box from the drawer body, the lock fitting provided on the side surface of the drawer box comes into contact with the roller provided on the link, and the pulling operation is prevented.

Further, when the dead bolt is disengaged from the engagement notch by operating the plunger of the solenoid, the rocking plate is placed in a swingable state, so that the link is also placed in a vertically movable state. The lock fitting pushes up the roller while contacting the roller (the link also rises by this pushing up), and the roller is displaced, whereby the drawer box is pulled out from the drawer body.

[0009]

1 shows an embodiment of a drawer restricting device for a drawer according to the present invention. FIG. 1 is a partially cutaway plan view of a locking device, FIG. 2 is a sectional view taken along line a--a of FIG. Is bb in FIG.
4, FIG. 4 is a partially cutaway front view of FIG. 1, FIG. 5 is an exploded perspective view showing a relationship between a vertical rod and a rocking plate, FIG. 6 is a side view of a locking part, and FIG. FIG. 8 is a schematic view showing a positional relationship of each part.

The drawer A of the embodiment is constructed by inserting the drawer boxes 2, 2, and 2 in three stages into the opening of the drawer body 1 so as to be able to be pulled out, and the side wall 1b constituting the drawer body 1 is formed. , 1b is provided with a vertical groove 3 at the front side thereof, and a vertical rod 4 is engaged with the vertical groove 3 so as to be vertically movable, and a through hole 5 provided at the upper end of the vertical rod 4 The vertically moving rod 4 is connected to the rocking plate 6 by engaging a protruding piece 7 provided at the end.

In the middle part of the vertical rod 4 in the vertical direction,
Rollers 8, 8, corresponding to the respective drawer boxes 2, 2, 2,
8 is rotatably pivoted, and a lock 9 for bringing the roller 8 into and out of the box surface is rotatably mounted on the side surface of the drawer box 2.

The locking fitting 9 is interposed between a supporting fitting 10 fixed to the side surface of the drawer box 2 and a holding fitting 11 having a rear end screwed to the supporting fitting 9. The drawer box 2 is rotatably mounted on a side surface of the drawer box 2 by a support shaft 12 penetrating through the drawers 10 and 11.

The locking member 9 has a contact piece 9b inclined upward and connected to the tip of a main body 9a attached to the supporting member 10 or the like by a support shaft 12, and a pair of upper and lower members at the rear end. One end is locked to the contact piece 9b of the protruding pieces 9c, 9d, and the other end is locked to the support fitting 10 by a rotational bias about the support shaft 12 of the coil spring 13; The contact piece 9b is arranged so as to contact and separate the tread surface of the roller 8 located near the contact piece 9b.

Rotational bias by the coil spring 13 is applied to the supporting rod 10 and the holding rod 11 by the stopper rod 14.
The upper projection 9c contacts the upper end of the lock member 9 and the rotation of the lock member 9 against the urging of the coil spring 13 is restricted by the lower projection 9d contacting the stopper rod 14. It is supposed to be.

The swinging plate 6 which connects the upper end of the vertical rod 4 and suspends the vertical rod 4 at the end engages with the upper frame 1A constituting the upper wall 1a of the drawer main body 1. And a balancer 16 through a through hole 15 formed in the rear end wall 1A 'of the upper frame 1A.
To load the balancer 16 with its own weight,
It swings by giving an external force to the load.

The swing operation of the swing plate 6 is regulated by the locking device 17.

The locking device 17 has a main member provided on a device frame 18 provided at the center in the left-right direction of the upper frame 1A. In the drawing, reference numeral 19 denotes a solenoid fixed to the device frame 18.
One end of a dead bolt 21 is pivotally connected to the tip of a plunger 20 of the solenoid 19 so as to be rotatable.
Is rotatably pivotally attached to a main shaft 22 erected on the device frame 18 at an intermediate portion, and a locking portion piece 22 at another end corresponding to the one end is provided at an intermediate portion in the left-right direction of the swing plate 6. Window 2
3, and at one end of the window 23, an engagement notch 24 for engaging and disengaging the locking piece 22 is provided horizontally.

On the tip side of the plunger 20, a pressing fitting 25 which comes into contact with and separates from the tip of the plunger 20 is provided.
, Which is rotatably supported by the device frame 18, and a part 25 a of the press fitting 25 is led out from the upper frame 1 </ b> A, and the upper drawer box in the drawer boxes 2, 2, 2 is provided. The unlocking piece 26 provided for the pressing member 2 contacts the piece 25a.
5, the plunger 20 is retracted by the rotation.

The plunger 20 moves forward by sending an excitation signal and moves backward by sending a reverse excitation signal, and the solenoid 19 is held by a permanent magnet.

When the locking device 17 is unlocked, that is, when the locking piece 22 of the dead bolt 21 is disengaged from the engagement notch 24, the rocking plate 6 is in a horizontal state and the locking plate 17 is locked. The piece 22 is in a state in which it can be engaged with the engagement notch 24. At this time, when the external force is applied, the swing plate 6 freely and easily swings by the balance action of the balancer 16 (for example, the chain line in FIG. 2). ). In this state, when the drawer box 2 is pushed into the drawer body 1, the lock fitting 9 provided on the side comes into contact with the roller 8 provided on the vertical movement rod 4 so that the pushing operation of the drawer box 2 is prevented. Since the vertical rod 4 connected to the rocking plate 6 is in a vertically movable state, the lock 9 pushes up the roller 8, that is, the vertical rod 4, and the drawer body 1
Will fit. At the same time, the swing plate 6 returns to its original position, that is, the horizontal state, by the action of the balancer 16.
The roller 8 provided on the vertical rod 4 moves to the lock 9 again.

When an excitation signal is sent to the solenoid 19, the plunger 20 moves forward and protrudes, and the dead bolt 21 having one end pivotally connected to the distal end of the plunger 20 rotates about the main shaft 22. Then, the locking piece 22 of the dead bolt 21 is locked in the engagement notch 24 provided in the rocking plate 6 to restrict the rocking of the rocking plate 6. At this time, drawer box 2
The roller 8 is provided even if the lock member 9 moves along with the drawer box 2 and the lock member 9 comes into contact with the lock member 9 to push the roller 8 upward. The vertical rod 4 is prevented from rising due to the swing regulation of the swing plate 6, and the drawer box 2 cannot be pulled out. That is, it is in the locked state.

When the drawer box 2 is in the pulled-out state when the locking piece 22 is locked with the engagement notch 24, the locking fitting 9 that comes into contact with the roller 8 by the pushing operation is urged by the coil spring 13. And the drawer box 2 is accommodated in the drawer body 1.

In the locked state, the unlocking piece 26 provided in the upper drawer body (in the figure, 28 indicates a keyhole)
Is rotated through the piece 25a of the pressing fitting 25, the pressing fitting 25 is
The plunger 20 is retracted against the spring 29 provided in the plunger 20, and the retracted state is held by the permanent magnet.
Leave from 4.

When the solenoid is in the locked state,
9, the plunger 20 moves backward, and as a result, the dead bolt 21 rotates, and the dead bolt 21
Is released from the engagement notch 24.

When the drawer box 2 is pulled out when the locking piece 22 of the dead bolt 21 is disengaged from the engagement notch 24, the lock 8 is brought into contact with the drawer box 2 to prevent the roller 8 from being pulled out. The drawer box 2 is pulled out of the drawer main body 1 because it is provided on the vertical rod 4 that is provided and rises together with the vertical mover rod 4.

The locking member 9 is urged to rotate by the coil spring 13. However, the locking member 9 may be urged to rotate by the distribution of the weight of the locking member 9 itself.

[0027]

[Effect of the Invention] Since the present invention has the configuration as described above,
It is possible to provide a device having a novel structure capable of reliably controlling the drawer box without taking out the width of the drawer.

[Brief description of the drawings]

FIG. 1 is a partially cutaway plan view of a locking device.

FIG. 2 is a sectional view taken along line aa of FIG.

FIG. 3 is a sectional view taken along line bb of FIG. 1;

FIG. 4 is a partially cutaway front view of FIG. 1;

FIG. 5 is an exploded perspective view showing a relationship between a vertical rod and a swing plate.

FIG. 6 is a side view of a locking bracket.

FIG. 7 is a sectional view taken along line cc of FIG. 6;

FIG. 8 is a schematic diagram showing an arrangement relationship of each unit.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Drawer main body 2 Drawer box 4 Vertically moving rod 6 Rocking plate 8 Roller 9 Locking fixture 17 Locking device 19 Solenoid 20 Plunger 21 Deadbolt 24 Engagement notch

──────────────────────────────────────────────────続 き Continued on the front page (58) Field surveyed (Int. Cl. ⁶ , DB name) E05B 65/46 A47B 88/00 E05B 47/06 E05B 63/14 E05B 65/02

Claims (2)

(57) [Scope of request for utility model registration] 1. A swing plate, which swings up and down of the drawer body and whose swing is regulated by a locking device, is provided on an upper wall portion of the drawer body, and the drawer body is provided at both left and right ends of the swing plate. A vertically movable rod is vertically suspended along the side wall of the roller, and a roller is rotatably pivoted to the vertically movable rod in correspondence with the drawer box, and the tread surface of the roller comes into contact with and separates from the roller, and the contact direction A drawer pull-out restricting device in which a lock fitting that is biased to rotate is rotatably mounted on the side of the drawer box. 2. A locking device comprising an engaging notch provided in a middle portion of a rocking plate, a dead bolt for disengaging the engaging notch, and a solenoid having a plunger for rotating the dead bolt. The drawer restricting device according to claim 1, further comprising: