JP3418076B2 - All lock device of drawer in cabinet - Google Patents

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a cabinet body such as a desk sleeve drawer, a wagon type side desk, a wagon type cabinet, etc., which is provided with a plurality of upper and lower drawers (hereinafter, simply referred to as a cabinet). The present invention relates to the structure of an all-lock device that can lock these drawers at once with a single lock.

[0002]

2. Description of the Related Art Conventionally, as an all lock device of this type, in Japanese Utility Model Publication No. 57-38530, an engaging portion provided on a vertical and vertical lock rod arranged on an inner side surface of a cabinet body is provided with a vertical lock rod. While it is configured to engage and disengage with the stopper part on the side surface of the drawer of each stage by rotating around the axis,
One lock is attached to the front plate of the uppermost drawer, and a pressing rod connected to the dead bolt of the lock is configured to be movable in a substantially horizontal direction within the front plate, and all the drawers are installed in the cabinet body. In the pushed state, by locking the lock, the tip of the pressing rod horizontally pushes the protrusion provided on one side of the lock rod in the locking direction, and by rotating the lock rod, all the drawers are brought together. A configuration for locking to is disclosed.

On the other hand, in Japanese Utility Model Publication No. 5-89748,
An engaging portion provided on the lock rod, which vertically locks a lock rod arranged on the inner side surface of the cabinet body by engaging with a rotating plate pivotally supported on the inner side surface of the cabinet body so as to be vertically movable. While the lock rod is moved up and down, it is engaged with and disengaged from the stopper on the side of the drawer of each stage, while one lock is attached to the front plate of the uppermost drawer, and the dead bolt of the lock is locked. It is constructed so as to rise during operation, and a rotating shaft that rotates around its longitudinal axis is attached to the lower surface of the upper frame of the cabinet body through a fixture, and is fixed to the front end of the rotating shaft. The protrusion on the lower surface of the tip of the actuator is brought into contact with the dead bolt, and the shaft projecting rearward from the tip of the connecting plate fixed to the rear end of the rotating shaft is engaged with the cutout portion of the vertical swing plate. The top and bottom of the rocker plate with the notch at the top of the lock rod. Configuration engaged is disclosed in section.

[0004]

However, in Japanese Utility Model Publication No. 5-89748, the number of parts is large, and in particular,
Since the number of parts from the rotating shaft to the lock rod is large, the rattling dimension (playing dimension) of the associated engaging portion becomes large, and therefore, the lock and lock are fixed against the constant rise amount of the dead bolt of the lock. The ascending / descending amount of the lock rod for unlocking was uncertain.

An object of the present invention is to eliminate the above problems and to provide a device which has a simple structure and can be surely locked.

[0006]

In order to achieve the above object, an all lock device for a drawer in a cabinet according to a first aspect of the present invention is an inner surface of a cabinet body in which a plurality of drawers are mounted so that they can be pulled out forward and backward. In the all-lock device, a lock rod movable up and down is arranged, and the drawers of all the stages pushed into the cabinet body are locked and unlocked by moving the lock rod up and down. , The top of the front panel of the top drawer
A lock with a dead bolt that rises when locking is provided at the part closer to the part, and it is attached to the inner surface of the front frame of the cabinet body.
Attach the crank body to the mounting member to be fixed, and
The link body is attached to the mounting member so that both front and rear parts can rotate.
Rotation center shaft supported and rotation center behind mounting member
A horizontal bar that projects laterally from the shaft and a rearward direction from the tip of the horizontal bar
And a pair of upper and lower rollers on the upper part of the lock rod.
The operating arm inserted between the control pieces and the
It is provided at the tip of the arm that projects in
Touch the deadbolt that is locked to push it up.
A contact arm is provided, and the crank body is provided with a biasing spring that biases the lock rod to a raised position when unlocked.

The invention described in claim 2 is the same as claim 1
In the all-lock device for the drawer of the cabinet according to [1], the contact arm is sandwiched with the axis line of the rotation center shaft interposed therebetween.
The arm and the operating arm are located on opposite sides of each other .

[0008]

BEST MODE FOR CARRYING OUT THE INVENTION Next, an embodiment of the present invention will be described. 1 is a perspective view of a wagon type cabinet, FIG. 2 is a perspective view of a main part of the all-lock device, and FIG. 3 is an enlarged side sectional view taken along the line III-III of FIG.

The cabinet main body 1 made of a metal plate includes both left and right side plates 2 and 2, a top plate 3 having a large opening in the center and consisting of peripheral side plates, a bottom plate not shown, and a direction change attached to the bottom plate. A plurality of stages of drawers 5, 6 and 7 are arranged so that they can be pulled out forward and backward through rails (not shown) provided on the inner surfaces of the left and right side plates 2 and 2. A table plate 8 such as another wooden plate is fixed to the upper surface of the top plate 3.

Next, the operating structure of the all-lock device 20 will be described with reference to FIGS. First, a pair of front and rear reinforcing frames 10 and 11 are fixed by spot welding or the like so as to have a vertically long guide groove 9 in a front portion of the inner surface of the right side plate 2 of the cabinet body 1, and the guide groove 9 is formed. A vertically elongated lock rod 12 having a substantially U-shaped cross section is vertically movable. At the upper end of the lock rod 12, a pair of upper and lower regulating pieces 13 and 14 that come into contact with the upper and lower surfaces of an operating arm 21 of an all-lock mechanism 20 described later.
Is formed by bending sideways. The pair of restricting pieces 13 and 14 are formed, for example, in an arcuate cross section such that the side in contact with the upper and lower surfaces of the operating arm 21 is convexly curved. In addition, the lock rod 12 is a stopper that engages with an upwardly open engagement portion 16 formed in a rail-combined reinforcing member 15 provided on the outer surface of the right side plate of each of the drawers 5, 6, and 7 of each stage. The piece 17 is also bent and formed.

A lock 24 is fixed to the upper part of the front plate 5a of the uppermost drawer 5 with a key 22 so that a dead bolt 23 moves up and down. On the other hand, a mounting member 25 having a rectangular tubular section is fixed to the inner surface of the front frame 1a of the cabinet body 1, and a crank body 26 is mounted on the mounting member 25. The crank body 26 includes a rotation center shaft 27, which is rotatably supported by the mounting member 25 at both front and rear portions.
The horizontal bar 28 that projects laterally from the rotation center shaft 27 on the rear side of the mounting member 25, the actuating arm 21 having a round bar shape in cross section that projects rearward from the tip of the horizontal bar 28, and the rotation center shaft 27. It comprises an abutting arm 30 having a downwardly convex cross-section that is provided at the tip of an arm 29 that projects laterally from the middle. The lower surface of the contact arm 30 is set to face the upper end of the dead bolt 23 in the lock 24.

In the normal state (lock release position), the lock rod 12 is in the raised position so that the stopper piece 17 can be pulled out by being disengaged upward from the engaging portion 16 of each drawer 5, 6, 7. A winding portion of a torsion spring 31 as a biasing spring for fitting is fitted on the rotation center shaft 27, and one end 31a of the torsion spring 31 is attached to the contact arm 30.
, And the other end 31b of the torsion spring 31 is locked to the lower surface of the upper frame 1a or the like.

Next, the operation of the all-lock device 20 will be explained. All the drawers 5, 6, 7 are pushed into the cabinet body 1, and then the lock 2 is operated with the key 22.
When 4 is rotated in the locking direction, the dead bolt 23 rises by a certain amount and pushes the contact arm 30 of the crank body 26 upward against the biasing force of the torsion spring 31.
As a result, the rotation center shaft 27 is rotated clockwise in FIG. 2, so that the operating arm 21 is rotated downward via the horizontal bar 28. This operating arm 21 has a lock rod 12
Since it is inserted between the pair of upper and lower restricting pieces 13 and 14 in the above, the lock rod 12 is lowered by a predetermined amount when the crank body 26 is rotated in a predetermined locking direction (direction of arrow A in FIG. 3). ), The stopper piece 1 provided on the lock rod 12
7 can be fitted into the engaging portion 16 on the outer surface of the side plate of each of the drawers 5, 6, 7 and can be all-locked (see the two-dot chain line state in FIGS. 3 and 4).

On the contrary, when the key 22 is turned in the unlocking direction, the dead bolt 23 in the lock 24 is lowered, and the urging force of the torsion spring 31 causes the crank body 26 to move.
Since it rotates in the counterclockwise direction, the lock rod 12 is raised by a certain amount via the operating arm 21 and the pair of upper and lower regulating pieces 13 and 14, and the stopper piece 17 causes the drawers 5 and 5 to move.
Since each of the drawers 6 and 7 is disengaged upward from the engaging portion 16, each drawer can be freely pulled back and forth.

The sectional shape of the pair of upper and lower restricting pieces 13 and 14 of the lock rod 12 is the same as that of the operating arm 21.
If it is a curved surface that is convex on the side that abuts the upper and lower surfaces, the narrowest space between the upper and lower restricting pieces 13 and 14 will be the actuating arm 2
Even if it is formed so as to have a size equal to the size between the upper and lower surfaces of 1, the side portions of the pair of restriction pieces 13 and 14 are spread vertically, so that the actuating arm 21 with respect to the wide area is formed. It becomes easy to attach the pair of upper and lower control pieces 1
Since the convex curved surfaces 3 and 14 make line contact with the upper and lower surfaces of the operating arm 21, the lock rod 12 can be moved up and down without rattling.

[0016]

As described above, the all lock device for the drawer of the cabinet according to the first aspect of the present invention is such that a plurality of drawers are vertically movable on the inner side surface of the cabinet main body on which the drawers can be pulled out forward and backward. In the all-lock device, in which lockable lock rods that can be moved are arranged and the drawers of all the stages pushed into the cabinet body are locked and unlocked by moving the lock rods up and down , On the upper part of the front plate of the drawer, a lock with a dead bolt that rises when locking is installed, and it is fixed to the inner surface of the front frame of the cabinet body.
A crank body is attached to the material, and the crank body is
Rotation center where both front and rear parts are rotatably supported by the attachment member
The shaft and the mounting member project sideways from the rotation center shaft.
The horizontal bar to be installed and the above-mentioned
Inserted between the upper and lower restraint pieces at the top of the lock rod.
The operating arm and the arm that projects laterally from the center axis of rotation.
The lock is installed at the tip of the lock, and when the lock
Contact arm that abuts so that it can be pushed up
The crank body is provided with an urging spring that urges the lock rod so that the lock rod is in the raised position when the lock is released. With this structure, the crank body having the contact arm and the operating arm and the biasing spring are provided on the inner surface of the front frame of the cabinet body between the lock dead rod and the lock rod.
Since it suffices to dispose the mounting member provided with , the number of constituent parts becomes extremely small, and the gap between the adjacent parts can be made extremely small, and all locking can be performed accurately.

Since the crank body is provided with an urging spring for urging the lock rod so as to be in the raised position when the lock is released, at the time of locking operation, the weight of the lock rod and the dead bolt are applied to the crank body. By pushing up the contact arm, the lock can be turned in the lock direction with a light force.

The invention described in claim 2 is the same as claim 1.
In the all-lock device for the drawer of the cabinet according to [1], the contact arm is sandwiched with the axis line of the rotation center shaft interposed therebetween.
Since the arm and operating arm are located on opposite sides , the dead weight of the lock rod and the dead
For pushing up the abutment arm with the tilt and the force of the biasing spring
The effect is that the lock can be turned in the locking direction with a lighter force .

[Brief description of drawings]

FIG. 1 is a perspective view of a cabinet.

FIG. 2 is a perspective view of a main part of the all-lock device.

FIG. 3 is an enlarged side sectional view taken along the line III-III of FIG.

FIG. 4 is a sectional view taken along the line IV-IV of FIG.

[Explanation of symbols]

1 Cabinet body 1a Upper frame 5, 6, 7 drawer 12 Lock rod 13,14 Control piece 16 Engagement part 17 Stopper piece 20 All lock device 21 Working arm 23 Deadbolt 26 crank body 27 Rotation center axis 28 Horizontal bar 29 arms 30 contact arm 31 torsion spring

Claims (2)

(57) [Claims] 1. A lock rod that can be moved up and down is disposed on the inner side surface of a cabinet body in which a plurality of drawers are mounted so that it can be pulled out forward and backward, and the lock rod is pushed into the cabinet body by moving the lock rod up and down. In the all-lock device configured to lock and unlock the drawers of all the stages of the above, in the front plate of the uppermost stage of the drawer, a lock with a dead bolt that rises at the time of the lock operation is provided at the upper part of the front plate. As a mounting member that is installed and fixed to the inner surface of the front frame of the cabinet body
Is equipped with a crank body , and the crank body can rotate both front and rear parts on the mounting member.
The central axis of rotation that is pivotally supported and the rear side of the mounting member
The horizontal bar protruding laterally from the center axis of motion and the tip of the horizontal bar.
Projecting rearward from the upper part of the lock rod
Actuating arm inserted between a pair of restriction pieces, and rotation center axis
From the end of the arm that projects sideways from the
Abut on the lock dead bolt so that it can be pushed up
A lock arm for a drawer in a cabinet , wherein the crank body is provided with a biasing spring that biases the lock rod so as to be in a raised position when unlocked. 2. The abutment with the axis of the rotation center axis interposed therebetween.
An all lock device for a drawer in a cabinet according to claim 1, wherein the arm and the operating arm are located on opposite sides of each other .