JP3443759B2 - Cabinet locking 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 locking device for an office cabinet in which a multistage drawer compartment and an opening / closing door compartment are arranged side by side.

[0002]

2. Description of the Related Art Conventionally, no cabinet having a multistage drawer compartment and an opening / closing door compartment is provided with a lock device for locking all of them. On the other hand, the conventional multi-stage drawer cabinet has a drawer lock device,
Also, the door cabinet had a door lock device.

[0003]

However, in the drawer lock device in the conventional multi-stage drawer cabinet and the door lock device in the open / close door cabinet, technical means (installation position of lock, interlocking structure with lock, locking means, etc.) is used. However, they were completely different, and they were only established as independent locking devices.

Therefore, a single lock device cannot be used for a cabinet having a multistage drawer compartment and an opening / closing door compartment, and a separate lock device is inevitably required.

It is an object of the present invention to provide a lock device for a cabinet having both a multi-stage drawer section and an opening / closing door section, which can lock all the drawers and the opening / closing doors collectively by one locking operation.

[0006]

According to the present invention, the above problems can be solved as follows. (1) The inside of the cabinet body is divided into two compartments, left and right,
A multi-stage drawer is placed in one of the compartments, and a drawer lock lifting rod that prevents the drawers from pulling out the drawers is erected vertically, and an opening / closing door is installed in the other compartment. A lock device for a cabinet, wherein the opening / closing door is provided with a latch shaft that is oriented in the up-down direction and that is integrated with a latch claw that engages and disengages with a locking portion provided on the frame portion of the cabinet body. Within
An operating rod is provided which is linked to a cylinder lock provided on this frame and moves left and right in conjunction with the operation of the cylinder lock, and the drawer lock elevating rod moves to the drawer lock position during the locking operation of the cylinder lock. As described above, the drawer lock lifting rod and the operating rod are linked to each other , and
It is rotatably supported and has an L-shape in plan view.
Lock the arm of the topper facing rearward to the operating rod,
The stopper moves around the axis by the lateral movement of the operating rod.
The arm that turns to the side and turns to the side of the
Prevents the rotation of the latch claw by making contact with the surface of the latch release direction of
The stopper of the
Protruding pins on each side of the multi-stage drawer,
Attach the drawer lock lifting rod at the position corresponding to the pin to this
Downward chevrons forming a guide passage to guide these pins
Fix the upright and the stop projection with the upwardly inclined guide surface,
When the Linda lock is locked, the drawer lock lifting rod is
Move to the raised position and the pin is obstructed by the stop protrusion.
The drawer lock lifting rod and the operating rod in a linked relationship.
It

(2) In the above item (1) , a catch mechanism for grasping and holding the drawer lock lifting rod is provided at one end of the drawer lock lifting rod.

[0008]

According to the present invention, the lock of the drawer of the multistage drawer section and the lock of the open / close door of the open / close door section can be simultaneously performed by operating a single cylinder lock arranged on the frame of the cabinet body. .

[0010]

DESCRIPTION OF THE PREFERRED EMBODIMENTS FIG. 1 is a cabinet (A) to which the present invention is applied.
FIG. This cabinet (A) is a door compartment
(1) and the multistage drawer section (7) are combined horizontally.

In the open / close door (2) of the open / close door section (1), a latch shaft (4) extending vertically is provided beside the handle portion (3).
Is provided, and the latch claw (5) is fixed to the end thereof. These latch claws (5) are engaged and disengaged with a locking portion (not shown in FIG. 1) provided on the frame portion (6) of the cabinet body.

2 and 3, the handle of the opening / closing door (2) is shown.
Details of (3), the latch shaft (4) and the latch claw (5) are shown.

A handle formed by being recessed in the front surface of the opening / closing door (2)
A latch pull tab (9) is provided on the inner side of (3) so as to be rotatable around a pivot shaft (10) extending in the vertical direction. The latch pull tab (9) is normally urged to the solid line position by a spring (not shown), but by holding the handle inside the pull tab (3) and pushing the latch pull tab (9) forward with a fingertip. The latch pull tab (9) rotates about the pivot shaft (10) (see the phantom line in FIG. 3).

Since the other end of the latch pull tab (9) is fixed to the latch shaft (4) by the connecting member (11), the latch pull tab (9) is
With the rotation of (9), the latch shaft (4) also rotates. When the latch shaft (4) is rotated, the latch claws (5) fixed to the upper and lower ends of the latch shaft (4) are connected to the frame part (6) of the cabinet body.
It is detached from the locking part (12) (Fig. 4) provided on the
Can be opened.

It is the lock by the cylinder lock (8) that prevents the rotational desorption operation of the latch claw (5). Cylinder lock
According to the present invention, (8) is provided on the frame (6) of the cabinet body, as shown in FIG.

In FIG. 4, this cylinder lock (8) is hinged to the center, and to the right, to the cabinet body (13) below the frame (6).
The plane viewed from the opening / closing door (2) pivotally attached by (14) is further leftward, and the latch claw (5) engaged with the locking part (12) of the frame part (6).
And its locking mechanism.

FIG. 5 is a perspective view showing the details of the cylinder lock (8), the lock mechanism and the latch claw (5).

As shown in FIGS. 4 and 5, a pin (15) projects rearward from the rear portion of the cylinder lock (8) provided on the frame portion (6) of the cabinet body (13). (15) is
An actuating rod (1
It fits in the upper slot (17) of 6).

The operating rod (16) is also formed with a lower slot (18), and the lower slot (18) has an arm (19a) facing rearward of a stopper (19) which is substantially L-shaped in plan view. Are engaged.

The stopper (19) is rotatably supported by a vertical pivot (19b), and the tip of the arm (19c) facing the side is locked to the locking portion (12). A position where the latch claw (5) comes into contact with the latch release direction surface (5a) (position shown in phantom line in FIG. 4) and a position apart from the latch release direction surface (5a) of the latch claw (5) (position shown in solid line in FIG. 4) And can occupy.

Therefore, when a key (not shown) is inserted into the unlocked cylinder lock (8) of FIGS. 4 and 5 and turned counterclockwise, the rear portion of the cylinder lock (8) is as shown by the arrow. The pin (15) also rotates to the left as it rotates. Since this pin (15) is fitted in the upper slot (17) of the operating rod (16), the operating rod (16) also moves to the left as shown by the arrow. Then, the arm (19a) facing the rear of the stopper (19) engaging with the lower slot (18) of the operating rod (16) rotates counterclockwise about the pivot axis (19b) as shown by an imaginary line. Then
The tip of the arm (19c) facing the side comes into contact with the latch release direction surface (5a) of the latch claw (5).

In this case, even if the hand is put in the handle portion (3) of the opening / closing door (2) and the fingertip is put on the latch pull handle (9), the latch shaft
(4) does not rotate and the open / close door (2) is locked.

The operating rod (16) also extends to the tip of the lower slot (18), and its tip (16a) is in contact with the swing member (21). The swing member (21) is a drawer lock lifting rod which is a part of a mechanism for locking all the drawers of the multistage drawer section (7).
It is a member for raising and lowering (20). First, multi-stage drawer compartment (7)
The lock mechanism of will be described.

In FIG. 1, the right end of the multistage drawer section (7),
That is, as shown in FIGS. 6 to 8, a drawer lock lifting rod (20) extending in the vertical direction is attached to the partition (22) between the opening / closing door section (1) and the partition (22). It is mounted so that it can be raised and lowered by means of a tool (23).

On the drawer side of the drawer lock lifting rod (20),
For each drawer (24) of each stage, a downward projection (25) and a stop projection (27) having an upward inclined guide surface (26) are provided between the passages.
It is fixed by leaving it (28). In the figure, in order to clarify the shapes of these protrusions, the drawer lock lifting rods (20) are cut out at the first-stage and second-stage drawers (24).

Each drawer (24) is provided with a pin (29) protruding therefrom. The protruding position of the pin (29) is such that the pin (29) faces downward when the drawer (24) is closed.
It should be located just behind the passageway (28) between it and 7).

At the lower end of the drawer lock lifting rod (20), an engaging protrusion (30) is provided so as to protrude downward. This engaging protrusion (30) is
A catch mechanism is configured with the receiving member (31) attached to the partition (22).

In addition, at the upper end of the drawer lock lifting rod (20),
The opening (32) is perforated, and the swing member (21) is engaged with the opening (32) (see FIGS. 4 and 5).

Although each drawer (24) is closed, when the drawer (24) of the second stage is pulled out from the unlocked state of FIG. 6, the pin (29) on the side of this drawer (24). Enters the passageway (28), comes into contact with the downward chevron protrusion (25), and pushes it forward to move forward.

The downwardly facing chevron protrusion (25) is a drawer lock lifting rod.
Since it is fixed to the (20), the drawer lock elevating rod (20) moves upward, and the engaging protrusion (30) at the lower end of the drawer lock elevating rod (20) moves to the receiving member (31).
It enters deep inside and becomes a catch state. Therefore, the drawer lock lifting rod (20) is locked at this raised position. Thus, as shown in FIG. 7, when the drawer (24) of the second stage is pulled out, the drawer lock lifting rod (20) remains in the raised position, and therefore the stop projection (27) also moves upward. ing.

In this state, the drawers (2
The pin (29) of 4) is located on the side surface of the stop protrusion (27), and the drawers (24) of the first and third stages cannot be pulled out. This is the anti-rotation function.

When the second drawer (24) being pulled out is closed, its pin (29) comes into contact with the upwardly inclined guide surface (26),
Push down the drawer lock lifting rod (20) to return to the state shown in FIG.

As described above, the tip (16a) of the operating rod (16) linked to the cylinder lock (8) is in contact with the swing member (21). As shown in FIGS. 4 and 5, the swinging member (21) is supported by a horizontal pivot (21a) in the frame portion of the cabinet body, and from the surface opposite to the operating rod contact surface. The protruding piece (21b) is protruding. This protrusion (21b) is loosely fitted into the opening (32) at the upper end of the drawer lock lifting rod (20), and this opening (3b
2) It is always in contact with the folded portion (32a) of the upper edge.

As described above, when the cylinder lock (8) is rotated in the direction of the arrow by the key and the operating rod (16) is moved leftward to lock the opening / closing door (2), this operation is performed. Rod (1
The tip (16a) of 6) rotates the rocking member (21) about its pivot (21a), and as a result, the protrusion (21b) pulls up the drawer lock lifting rod (20).

The moving distance of this pull-up is smaller than the distance described above with reference to FIG. 7, and as shown in FIG. 8, the middle of the engaging protrusion (30) at the lower end is engaged with the receiving member (31). , It doesn't catch.

Even in this state, as shown in FIG. 8, the pin (2
9) comes to a position where it comes into contact with the stop projection (27), and each drawer (24) cannot be pulled out. That is, this is the locked state of the multistage drawer section (7).

[0037]

According to the present invention, by the locking operation by the single cylinder lock arranged on the frame portion of the cabinet body,
The lock of the opening / closing door section and the lock of the multi-stage drawer section can be simultaneously performed at the same time. Also, the cabinet
Cylinder lock is one, though it has two different sections
Since only one piece is required, it can be a cabinet excellent in design.

Pins projecting from the respective side surfaces of the multi-stage drawer in one section, and a drawer lock elevating rod arranged at a position corresponding to these pins form a downward-facing chevron forming a guide passage for guiding these pins. A guide member composed of a protrusion and a stop protrusion having an upward guide slope is fixed, and during the lock operation of the cylinder lock, the drawer lock elevating rod moves to a raised position and the pin interferes with the stop protrusion. When the drawer lock lifting rod and the operating rod are linked, the drawer can be locked by using the operating rod of the lock mechanism of the opening / closing door as it is.

According to the second aspect of the present invention , a catch mechanism for grasping and holding the drawer lock lifting rod is provided at one end of the drawer lock lifting rod. Therefore , when the drawer is pulled out, the drawer lock lifting rod is moved to the raised position. It is possible to keep it on and to have anti-rotation function.

[Brief description of drawings]

FIG. 1 is a front view of a cabinet to which the present invention is applied.

FIG. 2 is a partially enlarged front view showing a handle portion of an opening / closing door section of the cabinet shown in FIG. 1 and upper and lower frame portions thereof.

FIG. 3 is a sectional view taken along line II-II of FIG.

FIG. 4 is a view showing a state in which a frame portion of the opening / closing door section is cut horizontally and viewed downward, with most of the frame portion omitted.

FIG. 5 is a perspective view showing a latch shaft, a latch claw, a lock mechanism thereof, and a cylinder lock.

FIG. 6 is a perspective view showing a lock mechanism of the multistage drawer section in an unlocked state.

FIG. 7 is a perspective view showing a lock mechanism of the multi-stage drawer section in a state where the second-stage drawer is pulled out.

FIG. 8 is a perspective view showing a lock mechanism of the multistage drawer section in a locked state.

[Explanation of symbols]

(A) Cabinet (1) Open / close door compartment (2) Open / close door (3) Handle (4) Latch shaft (5) Latch claw (5a) Latch release direction surface (6) Frame part (7) Multistage drawer compartment (8) Cylinder lock (9) Latch pull tab (10) Axis (11) Connecting member (12) Locking part (13) Cabinet body (14) Hinge (15) Pin (16) Actuating rod (16a) Tip (17) Upper slot ( 18) Lower slot (19) Stopper (19a) Rear-facing arm (19b) Axis (19c) Lateral arm (20) Drawer lock Lifting rod (21) Swing member (21a) Axis (21b) Projection ( 22) Partition (23) Fixture (24) Drawer (25) Downward chevron protrusion (26) Upward inclined guide surface (27) Stop protrusion (28) Passage (29) Pin (30) Engagement protrusion (31) receiver Member (32) Opening (32a) Folded part

─────────────────────────────────────────────────── ─── Continuation of the front page (56) Reference JP-A-2-243888 (JP, A) JP-A-6-129150 (JP, A) Actually open Flat 6-51448 (JP, U) Actually open 3- 71076 (JP, U) Actually open 61-177174 (JP, U) Actually open 6-24171 (JP, U) Actually public 49-26201 (JP, Y1) Actually public 52-762 (JP, Y1) Jitsuko Sho 51-32683 (JP, Y1) Jitsuho Hei 4-50385 (JP, Y2) Registered utility model 3008337 (JP, U) (58) Fields investigated (Int.Cl. ⁷ , DB name) A47B 88 / 00 E05B 65 / 46,65 / 06 E05C 3/12

Claims (2)

(57) [Claims] 1. A cabinet main body is divided into two compartments, left and right, in which one compartment is provided with a multi-stage drawer, and a drawer lock elevating rod that prevents the drawers from pulling out is vertically mounted. , An opening / closing door is installed in the other compartment, and the opening / closing door is oriented vertically.
One said the locking device of a cabinet formed by providing a latch shaft forming the latch claw integral to escape to a locking portion provided on rail portion of the cabinet body, in the stile part of the cabinet main body, provided in the stile section is associated with the cylinder lock, as this in conjunction with the operation of the cylinder lock arranged a operating rod to move laterally with the drawer lock lifting rod when locking operation of the cylinder lock is moved to the drawer locking position, said drawer lock The elevating rod and the operating rod are linked to each other , and are rotatably supported by a vertically oriented pivot.
And the rear of the stopper that is L-shaped in plan view
Lock the arm pointing to the operating rod and move the operating rod laterally.
Causes the stopper to rotate about the pivot axis,
The arm that points to the side is the surface of the latch claw in the latch release direction.
Striking the latch to prevent the latch claw from rotating.
It is equipped with a lid, and each of the multi-stage drawers in one compartment
Protruding pins on these sides, and the position corresponding to these pins
Guide these pins to the drawer lock lifting rod installed on the
Downward ridges and upward inclined guides that form a guide passage
The lock protrusion of the cylinder lock
At the time of production, the drawer lock lifting rod moves to the raised position,
When the pin is obstructed by the stop protrusion,
A lock device for a cabinet, characterized in that a lock elevating rod and an operating rod are linked with each other . One end of 2. A drawer lock lifting rod, the locking device of a cabinet according to claim 1, characterized in that a catch mechanism to grasp hold this drawer lock lifting rod.