JPH0643414Y2 - Latch device - Google Patents

Description

[Detailed description of the device]

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a latching device used for equipment storage boxes and the like.

[0002]

2. Description of the Related Art In a conventional latching device disclosed in Japanese Utility Model Laid-Open No. 61-176375, a base end portion of an operating lever is connected to a bearing plate portion protruding from one end portion of a base plate by a first pivot shaft. The base end of the latch arm is connected to the middle part of the operating lever by the second pivot, and the second pivot receives the latch in the locked state in which the tip hook of the latch arm is engaged with the locking end of the latch. The first pivot axis and the second pivot axis are arranged so as to be closer to the base plate than the straight line passing through the locking end portion and the first pivot axis.

Since this conventional device does not have a means for locking the operating lever on the base plate, the operating lever is pulled up and rotated about the first axis when another object collides with the tip of the operating lever. When this is done, there is a risk that the engagement between the latch arm and the receiver will be unintentionally released, and the locking of the wing body with respect to the fixed frame will be accidentally released.

Further, since the conventional device is not provided with means for holding the operating lever in the flipped-up position in the unlocked state, the operating lever is lying down on the base plate, and when the wing body is closed as it is, The hook portion at the tip of the latch arm only collides with the front surface portion of the catch and does not engage with the locking end portion. Therefore, after closing the wing body, pull up and rotate the operating lever once to raise the base end of the latch arm, move the tip hook part to the side of the catch end of the catch, and then push down the operating lever. Since it has to rotate, the operation from the closing of the wing body to the engagement of the latch arm and the catch cannot be performed smoothly.

[0005]

SUMMARY OF THE INVENTION Therefore, an object of the present invention is to prevent the locking lock from being accidentally released even when the tip of the operating lever is collided with another object, and to prevent the wing body from being closed to the latch arm. An object of the present invention is to provide a latching device that can be smoothly operated up to the engagement of a money receiver.

[0006]

In the following, referring to the reference numerals in the accompanying drawings, in the latch device of the present invention, the operating lever 3 is attached to the bearing plate portions 2 and 2 projecting from one end of the base plate 1. The base ends of the are connected by the first pivot 4, and the latch arm 5
The base end portion of the second lever is connected to the intermediate portion of the operation lever 3 by the second pivot 6, and the hook portion 7 of the latch arm 5 engages with the locking end portion 8a of the catch 8 in the locked and locked state. The first pivot shaft 4 and the second pivot shaft 8 are arranged so that the pivot shaft 6 is located closer to the base plate 1 than the straight line passing through the locking end portion 8a of the bracket 8 and the first pivot shaft 4.
To place.

At the other end of the base plate 1, there is provided a locking plate 10 which projects into the rear cavity 9 of the operating lever 3 and is embedded and fixed in the operating lever 3 so that the rotor 12 of the lock unit 11 is fixed.
The lock plate 13 is connected to the lock plate 13, and the lock plate 10 of the base plate 1 is provided with a lock receiving hole 14 for engaging and disengaging the tip of the lock plate 13.
The coil portion 16 of the torsion spring 15 is fitted to the first pivot 4, and one straight end 17 of the torsion spring 15 is attached to the operation lever 3.
The spring receiving portion 18 on the rear surface of the base end of the
The other linear end 19 of 5 is brought into contact with the bearing plate 2 of the base plate 1, and the operating lever 3 is rotationally biased in the flip-up direction.

[0008]

The wing body 20 is closed and the fixed frame 21 is closed.
When it is locked and locked, the operating lever 3 is laid down toward the base plate 1, and the second pivot 6 passes through the locking end portion 8a of the catch 8 and the first pivot 4 as shown in FIG. It is closer to the base plate 1 than the straight line. The lock plate 10 of the base plate 1 is inserted into the back side cavity 9 of the operation lever 3, and the lock plate 13 of the lock unit 11 is engaged with the lock plate hole 10 of the lock plate 10. .

In order to release the locking lock and open the wing body 20, the predetermined key 35 is inserted into the lock unit 11 and the rotor 12 is rotated, and the stopper plate 13 is inserted into the lock receiving hole 1.
Escape from 4. Then, a finger is put on the tip of the operation lever 3 to pull up the operation lever 3 about the first pivot 4 and rotate it. Since the second pivot shaft 6 moves forward of the base plate 1 by this pulling rotation, the latch arm 5 tilted and pivoted about the second pivot shaft 6 has the tip hook portion 7 from the locking end portion 8 a of the receiving metal 8. break away.

When the finger is released from the operating lever 3, the operating lever 3 is held at the position where it is flipped up from the base plate 1 by the biasing force of the torsion spring 15, and the tip hook portion 7 of the latch arm 5 is fixed. While being slidably in contact with the front plate portion 36 of the frame 21, it is moved to the side of the receiving metal 8 while being separated. Therefore, the wing body 20 can be opened without fear that the front end hook portion 7 and the locking end portion 8a are re-engaged, and the front end hook portion 7 of the latch arm 5 receives the receiving member 8 even when the wing body 20 is closed. It does not collide with the locking end 8a.

After the wing body 20 is closed, the operating lever 3 is pushed down and rotated about the first pivot 4, and the latch arm 5 is moved.
The front end hook portion 7 of the above approaches the engaging end portion 8a of the receiving metal 8 while slidingly contacting the front plate portion 36 of the fixed frame 21, and the second pivot 6 causes the engaging end portion 8a of the receiving metal 8 and the first pivot shaft 4 to move. When it comes closer to the base plate 1 side than the straight line passing through, the tip hook portion 7 deeply engages with the locking end portion 8a, and the wing body 20 fixes the fixed frame 2
1 is locked and locked.

[0012]

In the illustrated embodiment, the base plate 1 is fixed to the wing body 20 by a fixing tool such as a screw passing through the four mounting holes 22, and the receiver 8 is fixed to the wing body 20 such as a screw passing through the two mounting holes 23. It is fixed to the fixed frame 21 by a fixing tool. A pair of upper and lower bearing plate portions 2 of the base plate 1 are projected and a transverse pivot 4 is fitted into the right end portions of the pair of upper and lower side wall plate portions 24, 24 of the operating lever 3. The large-diameter base end portion 25 of the transverse pivot shaft 4 abuts on the lower bearing plate portion 2, and the retaining ring 26 fixed by caulking to the tip end portion of the transverse pivot shaft 4 abuts on the upper bearing plate portion 2. ing.

The transverse pivot 6 is fitted into the middle portion of the upper and lower side wall plate portions 24, 24 of the operating lever 3 and the left end portions of the pair of upper and lower side wall plate portions 27, 27 of the latch arm 5. The large-diameter base end portion 28 of the transverse pivot shaft 6 abuts on the side wall plate portion 27 on the lower side of the latch arm 5, and the retaining disk 30 which is fixed to the tip end portion of the transverse pivot shaft 6 with a screw 29 is provided on the upper side wall. It is in contact with the plate portion 27. The tip end of the straight end 19 of the torsion spring 15 is bent to prevent the transverse pivot 4 from moving along the axial direction, and abuts on the ring 26.

The stopper plate 13 is fitted into the rear end angular shaft portion of the rotor 12 through the through hole 31 at the base end portion so as not to rotate relative to the screw 32.
It is fixed to the rotor 12 by tightening. The base plate 1 is provided with escape holes 33 for escape of the screws 32. A finger hooking protrusion 34 is provided on the left end of the operating lever 3. As the lock unit 11, a lock unit incorporating a known lock mechanism such as a pin tumbler lock mechanism, a disk tumbler lock mechanism, or an axial pin tumbler lock mechanism is appropriately selected and used.

As described above, in the latch device of the present invention, the base end portion of the operating lever 3 is connected to the bearing plate portions 2 and 2 at one end portion of the base plate 1 by the first pivot shaft 4, and the base end portion of the latch arm 5 is connected. Part is connected to the intermediate part of the operating lever 3 by the second pivot 6,
A lock unit 11 in which a lock receiving hole 14 is provided in the lock plate portion 10 at the other end of the base plate 1 and is embedded and fixed in the operation lever 3.
Locking plate 13 is connected to the rotor 12 of FIG. 3, and the locking lever 13 is locked to the base plate 1 by engaging the tip of the locking plate 13 with the lock receiving hole 14 when locking and locking. Therefore, the operation lever 3 is prevented from being lifted and rotated due to a collision of another object or the like, and the locking lock is not accidentally released.

In the latch device of the present invention, since the locking plate portion 10 of the base plate 1 is formed so as to enter the rear cavity 9 of the operating lever 3, the protrusion height of the entire latch device in the locked and locked state. Can be suppressed to a relatively low level.

Further, in the latch device of the present invention, the coil portion 1
6 is fitted to the first pivot 4 and one linear end portion 17 of the torsion spring 15 is attached to the spring receiving portion 1 on the rear surface of the base end portion of the operation lever 3.
8 and the other linear end portion 19 of the bearing plate portion 2 of the base plate 1 so as to urge the operating lever 3 to rotate in the flip-up direction. The operation up to the engagement of the receiving money 8 can be smoothly performed by a series of operations, and the operability is excellent.

[Brief description of drawings]

FIG. 1 is a front view of a latching device according to an embodiment of the present invention in a locked state.

FIG. 2 is a bottom view of the latch device.

3 is a cross-sectional view taken along the line AA of FIG.

[Explanation of symbols]

 1 Base Plate 2 Bearing Plate Part 3 Operation Lever 4 First Axis 5 Latch Arm 6 Second Axis 7 Tip Hook Part 8 Receiving 8a Locking End 9 Back Side Cavity 10 Locking Plate 11 Locking Unit 12 Rotor 13 Stopping Gold plate 14 Lock receiving hole 15 Torsion spring 16 Coil part of torsion spring 17 Linear end part of torsion spring 18 Spring receiving part 19 Linear end part of torsion spring 20 Fixed frame

Claims (1)

[Scope of utility model registration request] 1. A base plate 1 is connected to a bearing plate portion 2, 2 protruding from one end portion of a base plate 1 by a first pivot shaft 4, and a base end portion of a latch arm 5 is connected by a second pivot shaft 6. In the locked and locked state in which the tip hook portion 7 of the latch arm 5 is engaged with the locking end portion 8a of the latch 8, the second pivot 6 is locked by the latch 8 The first plate should be located closer to the base plate 1 than the straight line passing through the end 8a and the first pivot 4.
A lock unit 11 in which the pivot shaft 4 and the second pivot shaft 8 are arranged, and a locking plate portion 10 which projects into the rear side cavity portion 9 of the operation lever 3 is provided at the other end of the base plate 1 so as to be embedded and fixed in the operation lever 3. The stopper plate 13 is connected to the rotor 12 of
The lock receiving hole 14 for engaging and disengaging the tip end of 3 is provided in the lock plate portion 10 of the base plate 1, the coil portion 16 of the torsion spring 15 is fitted to the first pivot 4, and one straight end of the torsion spring 15 is formed. Part 17
Is brought into contact with the spring receiving portion 18 on the rear surface of the base end portion of the operating lever 3, and the other linear end portion 19 of the torsion spring 15 is brought into contact with the bearing plate portion 2 of the base plate 1 so that the operating lever 3 is flipped up. A latch device that is biased by rotation.