JPH0532650U - Latch device - Google Patents

Abstract

(57) [Abstract] [Purpose] Even if another object collides with the tip of the operating lever, the locking and locking is not accidentally released, and the wing body is closed and the latch arm and the catch are engaged. Provide a latching device that can be smoothly operated up to. [Structure] The base plate 1 has a cavity 9 on the back side of the operating lever 3.
A locking plate portion 10 that projects into the lock lever plate 13 is connected to the rotor 12 of the lock unit 11 fixed to the operation lever 3, and the lock plate 13 has a lock receiving hole 14 through which the lock plate 13 engages and disengages. The coil portion 16 of the torsion spring 15 is fitted to the first pivot 4 of the operating lever 3, one linear end 17 is brought into contact with the spring receiving portion 18 of the operating lever 3, and the other linear end 19 is provided on the portion 10.
Is brought into contact with the bearing plate portion 2 of the base plate 1, and the operation lever 3 is rotationally biased in the flip-up direction.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a latch device used for a device storage box or the like.

[0002]

[Prior Art]

 In the conventional latching device disclosed in Japanese Utility Model Laid-Open No. 61-176375, the base end portion of the operating lever is connected to the bearing plate portion projecting from one end portion of the base plate by the first pivot, and the base end portion of the latch arm is provided. Part is connected to the intermediate part of the operating lever by the second pivot, and the second pivot is locked by the latch in the locked and locked state where the hook part at the tip of the latch arm is engaged by 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 end portion and the first pivot axis.

Since this conventional device does not include means for locking the operation lever on the base plate, another object collides with the tip end of the operation lever, and the operation lever is pulled up and rotated about the first axis. When it is pushed, there is a risk that the engagement between the latch arm and the catch 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 does not include means for holding the operation lever in the flipped-up position in the unlocked state, the operation lever is lying on the base plate and the wing body is closed as it is. Occasionally, the hook portion at the tip of the latch arm only collides with the front surface portion of the buckle and does not engage with the locking end portion. Therefore, after closing the wing body, pull up and rotate the operating lever once to lift the base end of the latch arm, move the tip hook part to the side of the catch end of the catch, and then move the operating lever. Since it has to be pushed down and rotated, 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 another object collides with the tip end portion of the operating lever, and also 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 smoothly perform operations up to engagement of a money receiver.

[0006]

[Means for Solving the Problems]

 Referring to the reference numerals in the accompanying drawings, the latch device of the present invention has a base plate 1 and a bearing plate 2, 2 protruding from one end of the base plate 1. Connected by a pivot 4, the base end of the latch arm 5 is connected by a second pivot 6 to the intermediate part of the operating lever 3, and the tip hook portion 7 of the latch arm 5 engages with the locking end 8a of the catch 8. In the locked and locked state, the first pivot shaft 4 and the second pivot shaft 8 are moved so that the second pivot shaft 6 comes closer to the base plate 1 side than the straight line passing through the locking end portion 8a of the bracket 8 and the first pivot shaft 4. Deploy.

At the other end of the base plate 1, a lock plate 10 that protrudes into the rear cavity 9 of the operation lever 3 is provided in a protruding manner, and the lock plate is fixed to the rotor 12 of the lock unit 11 embedded and fixed in the operation lever 3. The lock plate 13 of the base plate 1 is provided with a lock receiving hole 14 into which the tip of the stopper plate 13 is engaged and disengaged, and the coil part 16 of the torsion spring 15 is fitted to the first pivot 4. , One of the linear ends 17 of the torsion spring 15 is brought into contact with the spring receiving portion 18 on the rear surface of the base end of the operation lever 3, and the other linear end 19 of the torsion spring 15 is attached to the bearing plate portion 2 of the base plate 1. The operation lever 3 is brought into contact with each other and rotationally urged in the flip-up direction.

[0008]

[Action]

 When the wing body 20 is closed and locked by the fixed frame 21, the operating lever 3 is laid down toward the base plate 1, and the second axis 6 is received by the receiving plate 8 as shown in FIG. Is closer to the base plate 1 than the straight line passing through the locking end 8a and the first pivot 4. The lock plate 10 of the base plate 1 is inserted into the rear cavity 9 of the operation lever 3, and the lock plate 13 of the lock unit 11 is engaged with the lock plate 10 of the lock plate 10. ..

In order to release the locking and unlocking to 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 14. To escape from. After that, a finger is put on the tip of the operation lever 3 and the operation lever 3 is pulled up and rotated about the first pivot 4. Since the second pivot 6 moves to the front of the base plate 1 by this pulling rotation, the latch arm 5 tilted and pivoted about the second pivot 6 has the tip hook portion 7 from the engaging end portion 8a of the receiver 8. break away.

Here, when the finger is released from the operation lever 3, the operation lever 3 is held at the position flipped up from the base plate 1 by the rotational bias of the torsion spring 15, and the tip end hook portion 7 of the latch arm 5 is fixed. While being in sliding contact with the front plate portion 36 of the frame 21, it is moved to the lateral side of the money receiver 8. Therefore, the wing body 20 can be opened without the risk of the front end hook portion 7 and the locking end portion 8a being re-engaged, and even when the wing body 20 is closed, the front end hook portion 7 of the latch arm 5 receives the receiving member 8. It does not collide with the locking end 8a.

After closing the wing body 20, when the operation lever 3 is pushed down and rotated about the first pivot 4, the tip hook portion 7 of the latch arm 5 is slidably contacted with the front plate portion 36 of the fixed frame 21 and received. When the second pivot 6 comes closer to the locking end 8a of the metal 8 and comes closer to the base plate 1 than the straight line passing through the locking end 8a of the receiving metal 8 and the first pivot 4, the tip hook 7 Engages deeply with the locking end portion 8a, and the wing body 20 is locked and locked to the fixed frame 21.

[0012]

【Example】

 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 catch 8 is fixed such as a screw passing through the two mounting holes 23. It is fixed to the fixed frame 21 by a 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 lower side wall plate portion 27 of the latch arm 5, and the retaining disc 30 which is fastened and 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 movement of the transverse pivot 4 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 base end portion through hole 31 so as not to rotate relative to it, and is fixed to the rotor 12 by screws 32. The base plate 1 is provided with through holes 33 for escape of the screws 32. A finger hook protrusion 34 is provided at 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 disc 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. The lock unit 11 which is connected to the intermediate portion of the operation lever 3 by the second pivot 6 and has the lock receiving hole 14 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. The lock plate 13 is connected to the rotor 12 of the above, and the operation lever 3 is locked to the base plate 1 by engaging the tip of the lock plate 13 with the lock receiving hole 14 when locking and locking. Therefore, the operating lever 3 does not lift and rotate due to a collision of another object, 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 back side cavity 9 of the operation lever 3, the latch device as a whole can be locked. The protruding height can be suppressed to a relatively low level.

Further, in the latch device of the present invention, one straight end 17 of the torsion spring 15 in which the coil portion 16 is fitted to the first pivot 4 is brought into contact with the spring receiving portion 18 on the rear surface of the base end portion of the operation lever 3. Since the other linear end portion 19 is brought into contact with the bearing plate portion 2 of the base plate 1 and the operation lever 3 is rotationally biased in the flip-up direction, the wing body 20 is closed to the latch arm 5. The operation until the catch 8 is engaged can be performed smoothly by a series of operations, and is excellent in operability.

[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 Operating 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 portion of torsion spring 17 Linear end portion of torsion spring 18 Spring receiving portion 19 Linear end portion of torsion spring 20 Fixed frame

Claims (1)

[Scope of utility model registration request] 1. A base plate 1 has a bearing plate portion 2, 2 projecting from one end thereof. A base end portion of an operating lever 3 is connected to the bearing plate portion 2 by a first pivot shaft 4, and a base end portion of a latch arm 5 is connected to a second pivot shaft 6. The second pivot 6 is locked to the catch 8 in a locked and locked state in which the distal end hook portion 7 of the catch arm 5 is engaged with the locking end 8a of the catch 8 by being connected to the intermediate portion of the operating lever 3 by 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 4 and the second pivot 8 are arranged, and a lock plate 10 that projects into the rear cavity 9 of the operating lever 3 is provided at the other end of the base plate 1 and is embedded and fixed in the operating 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 latching device that is biased by rotation.