JPH08284509A - Desk - Google Patents

Abstract

PURPOSE: To increase the opening and closing workability, by providing the desk body forming a containing part on the working base and a cover body opening/closing the containing part and further, an electrical locking device to lock the cover body at the closing position, in the front end of the working base. CONSTITUTION: A latch claw 25 fits to the receiving part 31 of the cover body 16 at the closing position and locks the cover 16, when a solenoid device 22 is disconnected in current and put off. When the solenoid 22 is put off and the cover 16 is closed, the lower edge of the front end of the cover 16 is positioned to contact the slant face of the claw 25 and the claw 25 is lowered to the closing position while being transfered backward against the force of a compressive spring 29 to be reset to the projected position by the spring 29 and lock the cover 16. When the solenoid is put on, the actuation rod 23 is retracted and the claw 25 is retracted in the working base to release the lock. And further, a lock is provided at the lower side of the working base and a key is turned at a power cut to retract the claw 25 through the slide plate 26 and release the lock. In this way, the cover can be made light and easily opened and closed and also the wiring can be facilitated.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a desk having a lid for opening and closing a storage portion, and more particularly to a desk having means for locking the lid.

[0002]

2. Description of the Related Art When OA equipment such as a computer is permanently installed on each desk in a classroom or the like, a means for protecting the OA equipment is required when the OA equipment is not used. Conventional general desks are provided with a drawer for storing documents, writing utensils, or the like, or a part of a top plate is used as an opening / closing lid, and a storage portion is formed under the lid.

When an OA device is used on the tabletop of the conventional desk, if it is a relatively small OA device such as a small computer, it can be stored in a drawer when not in use. Since it is necessary to move the cable and attach / detach the cable connector and the like, there is a high risk of damage to the OA device during movement and damage due to frequent attachment / detachment of the connector.

Therefore, the applicant of the present application has already installed the necessary equipments on the workbench, and covers the equipments on the workbench with the lid when not in use, without moving the equipments. A desk structure that can be protected has been proposed (see Japanese Patent Laid-Open No. 5-300813).

Further, the applicant of the present invention ensures that storage and maintenance of the stored equipment are ensured so that the lid can be easily opened and the lid is prevented from being opened carelessly. I proposed a desk equipped with an electric lock device that locks the vehicle in the closed position (see Japanese Utility Model Laid-Open No. 5-87176).

The desk described in Japanese Utility Model Laid-Open No. 5-87176 is
As shown in FIG. 7, a receiving hole 4 is formed in the bottom shelf plate 3 of the storage unit 2 of the desk body 1, and an electric lock device 6 and an electric lock device 6 are provided on a rotatable lid 5 that opens and closes the storage unit 2. And a hook lever 7 which moves laterally by means of an electric lock device 6
When the switch is turned off, the hook lever 7 and the receiving hole 4 are held in a locked state, and the electric locking device 6 is energized to operate the electric locking device 6, thereby engaging the hook lever 7 with the receiving hole 4. It is to move to the position where the engagement is released.

[0007]

However, in the desk described in Japanese Utility Model Laid-Open No. 5-87176, the electric lock device 6 and the electric lock device 6 are provided on the rotatable lid 5 for opening and closing the storage portion 2. In order to prevent the cord connecting the electric lock device 6 and the power supply from getting entangled when the lid 5 is rotated, the cord wiring is provided with a designing device for the cord wiring. It is necessary, and the lid 5 is heavy because the electric lock device 6 and the like are provided, and there is a problem that the opening / closing operation of the lid 5 is heavy and not light.

SUMMARY OF THE INVENTION Therefore, an object of the present invention is to solve the above problems, to provide a desk which facilitates the cord wiring of the electric lock device and can open and close the lid easily.

[0009]

In order to solve the above-mentioned problems, the invention according to claim 1 comprises a desk main body having a storage section formed on a workbench, and a lid for opening and closing the storage section. In the provided desk, an electric lock device for locking the lid body at a closed position is provided at a front end portion of the workbench.

According to a second aspect of the present invention, in the desk according to the first aspect, the electric lock device is a latch member that can be retracted from the front end portion of the workbench, and a spring that biases the latch member in the protruding direction. And a solenoid for moving the latch member in and out against the spring force of the spring member.

According to a third aspect of the present invention, in the desk according to the second aspect, a lock member for manually unlocking the latch member for retracting operation against the spring force of the spring member under the workbench. Is provided.

[0012]

In the desk according to the first aspect, since the electric lock device is provided on the workbench of the desk body, wiring of the cord relating to the electric lock device is facilitated, and a special member is provided on the lid. Since it is not necessary to provide it, the weight is light and the lid can be opened and closed easily.

In the desk according to claim 2, the electric lock device includes a latch member which can be retracted from the front end of the workbench.
Since there is a spring member that biases the latch member in the protruding direction and a solenoid that retracts the latch member against the spring force of the spring member, the solenoid is operated by energizing the solenoid to retract the latch member. Direction, that is, the unlocking direction. Further, in the event of a power failure or the like, the latch member is kept in the locked position by the spring member, so that the lid body can be safely kept in the closed state.

In the desk according to claim 3, the latch member of the electric lock device can be manually unlocked by moving the latch member of the lock member by a key operation of the lock member. Is possible.

[0015]

Embodiments of the present invention will be described below with reference to the drawings.

1 to 6 show an embodiment of the present invention. First, referring to FIG. 1 and FIG. 2, a desk body 10 includes a pair of left and right legs 11 each having a substantially U shape.
The work table 13 is mounted between the upper arms of the legs 11 via the side plate 12, and the rear panel 14 is mounted between the rear columns of the legs 11. And the left and right side plates 1
The upper surface of the workbench 13 surrounded by 2 constitutes a storage unit 15 for storing devices such as a thin computer 20.

In order to protect the thin computer 20, the desk body 10 is provided with an openable / closable lid 16 for covering the storage section 15. The lid body 16 includes a lid body 16a that covers the upper surfaces of the side plates 12 and a front plate 16b that covers the front surfaces of the side plates 12.
The front plate 16b is rotatable about a hinge (not shown) provided at its rear end as a fulcrum from a closed position shown by a solid line in FIG. 1 to a standing position or a release position shown by a two-dot chain line. Further, it can be stored from the standing position in the lid storage portion formed on the rear panel 14 of the desk body 10.

Therefore, when the thin computer 20 is used, as shown in FIG. 2, the lid main body 16a is housed in the lid housing portion and the housing portion 15 on the workbench 13 is opened, and the thin computer 20 is not used. At times, as shown by the solid line in FIG. 1, the storage section 15 on the workbench 13 can be covered with the lid 16. The workbench 13 is a top plate 18a
And a lower surface plate 18b, and an upper surface plate 18a and a lower surface plate 18b.
An electric lock device, which will be described later, for locking the lid body 16 in the closed position is installed between and.

Next, the electric lock device will be described with reference to FIGS. 3 is a cross-sectional view of the electric lock device mounting portion, FIG. 4 is a plan view of the electric lock device, and FIG. 5 is an exploded perspective view of the electric lock device portion. The electric lock device 21 includes a solenoid device 22 and a solenoid device 22.
A shaft-shaped operating rod 23 attached to the
3 and a latch member that interlocks with each other.
A slide plate 26 having one end connected to the operating rod 23 by a pin 24, a resin latch claw 25 attached to the other end of the slide plate 26, and a resin slide block 28 screwed to the slide plate 26. Have and. The slide block 28 is provided with a workbench 1 so that the latch claws 25 can be projected and retracted through a through hole 30 formed in the front end portion of the workbench 13.
The guide plate 27 is fixed between the upper plate 18a and the lower plate 18b, and is slidably held in the front-rear direction. Further, between the slide block 28 and the rear bent piece 27 a of the guide plate 27, the slide block 28 is biased forward so that the latch claw 25 is passed through the through hole 30 formed in the front end portion of the pressure work table 13. Compression spring 2 for projecting to the outside
9 are provided. Therefore, when the solenoid device 22 is not energized and is in the off state, the latch claw 25 engages with the receiving portion 31 formed by cutting out a part of the rising portion 16c of the front inner wall portion of the lid body 16 in the closed position. The lid 16
Lock in the closed position. Further, as shown in FIG. 3, since the tip of the latch claw 25 is an inclined surface, when the lid 16 is closed when the solenoid device 22 is in the off state, the lower edge of the front end of the lid 16 is removed. It abuts the inclined surface of the latch claw 25 and acts on the inclined surface of the latch claw 25 to move the latch claw 25 rearward against the spring force of the compression spring 29 and descend to the closed position. Then, when the lid 16 reaches the closed position, the latch claw 25 is returned to the projecting position by the spring force of the compression spring 29, so that the lid 16 is locked in the closed position.

To unlock the lid 16, the solenoid 22 is energized and turned on. Then, the actuating rod 23 is pulled inward (rearward) by the electromagnetic action of the solenoid device 22.
The slide block 28 and the slide plate 26 form the compression spring 2.
It will be pulled backwards against the spring force of 9. Therefore, the latch claw 25 sinks inside the worktable 13,
The engagement with the receiving portion 31 of the lid 16 is released, the lock is released, and the lid 16 can be opened.

In the present embodiment, a lock member is provided for enabling the unlocking in the event of a power failure or failure of the solenoid device 22. As shown in FIGS. 4 to 6, the lock member 35 is rotatably provided on the lower surface plate 18b of the workbench 13, has a key receiving groove 36a formed in the lower portion thereof, and protrudes outward from the lower surface plate 18b. The main body 36 and the operating plate 37 fixed to the upper part of the key main body 36 are provided, and the standing wall portion 26 of the slide plate 26 is provided in the rotation region of the operating plate 37.
a is installed.

Therefore, in the event of a power failure or failure of the solenoid device 22, when the key is inserted into the key receiving groove 36a of the lower plate 18b of the work table 13 and the key body 36 is rotated, the operating plate 37 slides. The slide plate 26 can be moved rearward against the spring force of the compression spring 29 by coming into contact with the standing wall portion 26a of 26. By this movement, the latch claw 25 enters the inside of the work table 13, the engagement with the receiving portion 31 of the lid 16 is released, the lock is released, and the lid 16 can be opened.

According to the present embodiment, the electric lock device 21
However, since it is provided on the workbench 13 at the bottom of the storage portion 15 of the desk body 10 that does not move, the wiring of cords is different from the conventional structure in which the electric locking device is provided on the moving lid. It will be easier. In the present embodiment, as shown in FIG. 6, the cords of the electric lock device 21 are formed by extending the rear side of the work table 13 to the lower part of the lower surface plate 18b and passing it through a bent portion 18c formed by bending. Wiring and installation can be done easily.

[0024]

As is apparent from the above description, according to the present invention, since the electric lock device is provided on the workbench at the bottom of the storage section of the desk body that does not move, the electric lock device can be used. It is possible to provide a desk in which the wiring of the cord is facilitated and the lid does not need to be provided with a special weight body, and the lid can be opened and closed easily. Further, it is possible to provide a desk in which the lid can be manually opened even in the event of a power failure or the like.

[Brief description of drawings]

FIG. 1 is a perspective view showing an embodiment of a desk of the present invention.

FIG. 2 is a perspective view showing a state in which a lid body of the present embodiment is released.

FIG. 3 is a cross-sectional view of an electric lock device mounting portion of the present embodiment.

FIG. 4 is a plan view of the electric lock device of FIG.

5 is an exploded perspective view of the electric lock device of FIG.

FIG. 6 is a perspective view showing a cross section of a part of the workbench of the present embodiment.

FIG. 7 is a perspective view showing a desk equipped with a conventional electric lock device.

[Explanation of symbols]

 10 Desk Main Body 13 Worktable 15 Storage Section 16 Lid 18a Upper Plate 18b Lower Plate 21 Electric Lock Device 22 Solenoid Device 23 Actuating Rod 25 Latch Claw 26 Slide Plate 28 Slide Block 29 Compression Spring 31 Lid Receiving Portion 35 Lock Member 36 Key body 37 Working plate

Claims (3)

[Claims] 1. A desk provided with a desk main body having a storage section formed on a workbench and a lid for opening and closing the storage section, wherein the lid is closed at the front end of the workbench. A desk characterized by being provided with an electric lock device for locking to a desk. 2. The electric lock device includes a latch member that can be retracted from a front end portion of the workbench, a spring member that biases the latch member in a protruding direction, and the spring force against the spring force of the spring member. The desk according to claim 1, further comprising: a solenoid for immersing the latch member. 3. The desk according to claim 2, wherein a lock member for manually unlocking the latch member for retracting the lock member against the spring force of the spring member is provided below the workbench. .