JPH0514443U - Case locking device - Google Patents

Abstract

(57) [Summary] [Purpose] It is possible to confirm whether or not it is locked.
Further, there is provided a solenoid type locking device which can be manually unlocked when the solenoid does not operate. [Structure] The lock lever 7 provided on the door 2 is locked to a locking plate 16 of the main body case 3. The solenoid 19 of the main body case 3 lifts the release lever 18 to release the lock lever 7. When the solenoid 19 does not operate, the door 2
Turn the operation arm 13 with the operation lock 11 of the lock lever 7
Can be manually released. The locked state of the door can be confirmed by detecting the position of the lock lever 7 itself with the micro switch 20.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a lock device for a housing that releases a lock using a solenoid.

[0002]

[Prior Art]

 2. Description of the Related Art As a locking device for a door such as a case, a device using a solenoid as a means for electrically locking or unlocking is known. In a conventional locking device of this type, for example, a claw-shaped locking member is directly driven by a solenoid, and the solenoid is used to hook or release the locking member to the locking portion of the mating piece. I was doing it.

[0003]

[Problems to be solved by the device]

 According to the conventional lock device, there is no means for confirming whether or not the lock member is certainly engaged with the engaging portion by the operation of the solenoid. In addition, if the solenoid stops working due to power failure or failure after locking, there is a disadvantage that the lock cannot be released.

It is an object of the present invention to provide a solenoid type locking device capable of confirming whether or not locked, and further capable of manually unlocking when the solenoid is not operated.

[0005]

[Means for Solving the Problems]

 A housing locking device according to the present invention includes a lock lever swingably provided on one of a pair of openable and closable housings, and a locking portion provided on the other side for locking the lock lever. An operating unit that operates the position of the lock lever with a key, a release lever that is operated by a solenoid to release the lock of the lock lever with respect to the locking unit, and a detection unit that detects the position of the lock lever. is doing.

[0006]

[Action]

 When the release lever is operated by the solenoid while the lock lever of one case is locked to the lock part of the other case, the release lever operates the lock lever to lock the lock lever to the lock part. Is canceled. If the release lever is returned to the original position and both housings are closed, the pair of housings will be locked again. Whether or not the lock lever is in the position where it is locked to the locking portion is directly detected by the detection means. If the solenoid does not operate when locked, the lock lever can be moved to the unlocked position by key operation on the operation part.

[0007]

【Example】

 The lock device 1 according to the present embodiment is mounted on a housing 4 including a door 2 which is one housing and a main body case 3 which is the other housing. The door 2 is attached to the body case 3 so as to be openable and closable around a hinge (not shown). A lock lever 7 is attached to the inner side of the side edge of the door 2 on the side opposite to the hinge via the attachment plate 5 and the support shaft 6. The lock lever 7 has a rounded tip, and a hook portion 8 is formed on the lower side of the tip, and projects toward the main body case 3. The lock lever 7 can swing between a locked position shown by a solid line in the figure and a release position shown by an imaginary line in the figure.

An operation plate 10 is attached to the lock lever 7 via a connecting plate 9. The operation plate 10 is parallel to the lock lever 7 and is rotatably supported by the support shaft 6 together with the lock lever 7. An operation lock 11 as an operation unit is attached to the door 2 near the operation plate 10. The rotation shaft 12 of the operation lock 11 is oriented orthogonal to the support shaft 6, and the operation arm 13 is fixedly mounted on the rotation shaft 12. The operation arm 13 can contact the operation plate 10 from below. That is, by rotating the operation lock 11 from the outside of the door 2 with a key and rotating the operation plate 10 via the operation arm 13, the lock lever 7 in the lock position can be moved to the upper release position. .

A box-shaped cover portion 14 is provided at a portion of the main body case 3 facing the lock lever 7, and a slit 15 into which the lock lever 7 is inserted is provided on a front surface of the cover portion 14. Has been formed. Further, inside the cover portion 14, there is provided a locking plate 16 as a locking portion on which the lock lever 7 inserted from the slit 15 is hooked.

At the rear of the cover portion 14, there is a mounting bracket 17 integrated with the locking plate 16. A base end of a release lever 18 is swingably attached to the mounting bracket 17, and a bent front end of the release lever 18 can contact the hook portion 8 of the lock lever 7 from below. Further, a solenoid 19 is attached downward to the mounting bracket 17, and a rod of the solenoid 19 is connected to an intermediate portion of the release lever 18. That is, by operating the solenoid 19 and lifting the release lever 18 upward, the lock lever 7 locked by the locking plate 16 can be moved to the upper release position.

The mounting bracket 17 below the release lever 18 is provided with a micro switch 20 as a detection means for detecting the position of the lock lever 7. The actuator 21 of the micro switch 20 is operated by the hook portion 8 of the lock lever 7, and an ON / OFF signal of the micro switch 20 indicates whether the lock lever 7 is in the lock position or the release position. Can be directly detected by.

Next, the operation of the above configuration will be described. When the door 2 is locked, the hook 8 of the lock lever 7 on the door 2 side is hooked on the locking plate 16 via the slit 15 on the body case 3 side. The lock lever 7 in the lock position turns on the micro switch 20, and it can be seen that the door 2 is locked by a signal from the micro switch 20. In this embodiment, since the position of the lock lever 7 that locks the door 2 is directly detected, whether or not the door 2 is locked can be reliably detected.

When the lock is released, the solenoid 19 is energized to lift the release lever 18 and move the lock lever 7 to the upper release position. When the door 2 is pulled, the lock lever 7 can be pulled out from the slit 15 to open the front surface of the body case 3.

If the solenoid 19 is left energized after the door 2 is opened, the release lever 18 remains at the upper position. Therefore, even if the door 2 is closed and the lock lever 7 enters the slit 15, the lock lever 7 does not fall to the lock position, and the door 2 is not locked.

When the door 2 is closed and locked, the solenoid 19 is de-energized and the tip of the release lever 18 is lowered. When the door 2 is closed here, the lock lever 7 hits the locking plate 16 through the slit 15 and gets over the locking plate 16 to lock the hook 8 on the locking plate 16. As a result, the door 2 is locked with respect to the main body case 3.

The operation lock 11 is used to unlock the solenoid 19 when the solenoid 19 does not operate due to a power failure or a failure. Insert the key into the operation lock 11 and rotate the operation arm 13 upward. As a result, the operation plate 10 is lifted upward, and the lock lever 7 interlocking with the operation plate 10 is set to the upper release position.

[0017]

[Effect of the device]

 According to the housing lock device of the present invention, the release lever operated by the solenoid releases the lock by the lock lever. Since the position of the lock lever itself is detected, the locked state can be reliably detected, and the lock lever can be moved by the manual operation unit, so the lock can be released even if the solenoid does not operate.

[Brief description of drawings]

FIG. 1 is a cross-sectional view of an example.

FIG. 2 is a vertical sectional view of one embodiment.

[Explanation of symbols]

 1 Locking device 2 Door as one case 3 Main body case as the other case 4 Case 7 Lock lever 11 Operation lock as operation part 16 Locking plate as lock part 18 Release lever 19 Solenoid 20 Micro as detection means switch

Claims (1)

[Scope of utility model registration request] 1. A lock lever swingably provided on one of a pair of openable and closable housings, a lock portion provided on the other side for locking the lock lever, and a position of the lock lever. A lock device for a housing, comprising: an operation unit operated by a key; a release lever operated by a solenoid to release the lock of the lock lever with respect to the lock unit;