JPH0237980Y2 - - Google Patents

Description

[Detailed explanation of the idea] This invention relates to locks.

Doors of outdoor storage sheds and gas station tank spout lids are usually locked to prevent theft.
A lock with a letter-shaped engagement rod has been used.

However, since almost the entire engaging rod of the lock is exposed from the lock box, a cutting tool such as a bolt clipper can be easily engaged with the engaging rod, and the engaging rod can be cut. The problem is that it is easy to

Therefore, the object of this invention is to solve the above-mentioned problems and provide a lock with excellent safety in which the engagement rod is difficult to cut.

In order to achieve the above object, according to this invention, a connector insertion recess is formed on the outer periphery of the lock box, a rod insertion hole is formed crossing this insertion recess, and one end of the rod insertion hole is connected to the lock box. A spring is provided inside the lock box to press an engaging rod slidably inserted into the rod insertion hole toward the opening of the rod insertion hole; It becomes possible to engage with the engagement groove,
A rotatable locking lever biased by a spring in a direction that presses against the outer periphery of the engaging rod is arranged, a cylinder for rotating the locking lever is provided in the lock box, and the cylinder is operated by an operation key to lock the locking lever. By rotating the lever and disengaging the locking lever from the engagement groove, the engagement rod is moved in the axial direction by the elasticity of the spring, and by the movement of the rod,
The engagement between the connector and the rod that are engaged in the connector insertion recess is released.

Hereinafter, embodiments of this invention will be described based on the accompanying drawings.

As shown in the figure, a lock box 1 is vertically divided into two halves, and a pair of halves 1', 1' constituting the lock box 1 are connected by a plurality of rods 2.

Groove-shaped connector insertion recesses 3, 3 are formed on the upper and lower surfaces of the lock box 1, and a pair of rod insertion holes 4, 4 are provided intersecting each insertion recess 3. One end is opened at the end surface of the lock box 1, and an engaging rod 5 is inserted into one rod insertion hole 4, and a connecting rod 6 is inserted into the other rod insertion hole 4. Each of these rods 5 and 6 is connected to the lock box 1.
A retaining ring 9 is attached to the outer periphery of one side that sandwiches the support plate 7, and a spring 10 is fitted, and the end of the spring 10 is inserted into the hole 8 of the support plate 7 provided inside. The rods 5 and 6 are pressed against the ring 9 toward the opening of the rod insertion hole 4. Further, on the outer periphery of each rod 5, 6, an engagement groove 11 is formed on the other side of the support plate 7.

A pair of rod insertion holes 4 are provided on the end surface of the lock box 1.
A cylinder mounting hole 12 is formed between the openings, and a cylinder 13 that is rotatably operated by an operation key is mounted in the mounting hole 12.

Although a magnetic cylinder is used in the illustrated embodiment, the type of cylinder 13 is not limited to this.
For example, it may be a pin cylinder. A locking lever 14 is connected to this cylinder 13, and an engaging piece 15 is provided on a part of the outer periphery of the locking lever 14.
The engagement piece 15 can engage with the engagement groove 11 of the engagement rod 5. Also, lock lever 1
4 is provided with an interlocking piece 16, and one end of an interlocking lever 17 faces the side of the interlocking piece 16. The interlocking lever 17 is rotatably supported by the support plate 7 via a pin 18, and the other end of the interlocking lever 17 can be engaged with the engagement groove 11 of the connecting rod 6.

Furthermore, the support plate 7 is provided with a stiff spring 1.
9 is supported, and one end of the lock spring 19 engages with the engagement piece 15 of the locking lever 14, deflecting the locking lever 14 in a direction in which the engagement piece 15 comes into pressure contact with the outer periphery of the engagement rod 5, and the other end engages with the engagement piece 15 of the locking lever 14. Interlocking lever 17 at the end
The interlocking lever 17 is deflected in a direction in which the other end of the interlocking lever 17 is brought into pressure contact with the outer periphery of the connecting rod 6.

The lock shown in the embodiment has the above structure, and when this lock is used for locking the injection lid 21 of the injection barrel 20 at a gas station, for example, as shown in FIG. Connecting pieces 22 and 23 are provided on a circumferential portion and on a portion of the outer circumference of the spout lid 21 that is threadedly engaged with the injection barrel 20. When locking the spout lid 21, each connecting piece 22,
23 into the connector insertion recess 3, and press the ends of the engaging rods 5 and connecting rods 6 protruding from the end openings of each rod insertion hole 4 in the axial direction to loosen the tips of each rod 5, 6. Insert into the holes 24 formed at the ends of the connecting pieces 22, 23, and insert into the engaging grooves 1 of each rod 5, 6.
1 is engaged with the engagement piece 15 of the locking lever 14 and the other end of the interlocking lever 17 to prevent each rod 5, 6 from moving in the axial direction.

Now, insert the magnetic key 25 for operation into the key engagement recess 13' formed on the end surface of the magnetic cylinder 13 to make the magnetic cylinder 13 rotatable, and then rotate the magnetic cylinder 13. Then, the locking lever 14 rotates against the elasticity of the locking spring 19, and when the engagement piece 15 of the locking lever 14 is disengaged from the engagement groove 11, the engagement rod 5 is moved in the axial direction by the elasticity of the spring 10. The distal end of the engaging rod 5 disengages from the hole 24 of the connecting piece 22, and the spout lid 21 can be removed by disengaging the engaging rod 5 from the connecting piece 22.

When the magnetic cylinder 13 is further rotated in the same direction from the above state, the interlocking piece 16 of the locking lever 14 pushes one end of the interlocking lever 17, so the interlocking lever 17 is rotated in the opposite direction with respect to the locking lever 14. When the other end of the interlocking lever 17 comes off the engagement groove 11 of the connecting rod 6, the spring 1
Due to the elasticity of 0, the connecting rod 6 moves in the axial direction, and the tip of the connecting rod 6 comes out of the hole 24 of the connecting piece 23, and the lock is completely removed by disengaging the connecting rod 6 and the connecting piece 23. be able to.

The lock according to this invention is not limited to locking the spout lid 21, but can also be used for locking a bicycle by passing a chain between the engaging rod 5 and the connecting rod 6, for example.

Further, in the case of the embodiment, the connecting rod is also configured to be able to move in the axial direction by the rotation of the operation key, but the connecting rod may be supported immovably, or the connecting rod may be moved as the case may be. It may be omitted.

As described above, according to this invention, the engagement rod is inserted into the rod insertion hole that intersects with the coupling insertion recess formed in the lock box, and the engagement rod is moved in the axial direction to open the coupling insertion recess. Since the engagement rod and the connector are engaged and disengaged at the time, by restricting the width of the insertion recess to be approximately equal to the thickness of the connector, the insertion can be easily performed when the connector is in the engaged state. It is possible to provide a lock with excellent safety without the inconvenience of not being able to properly insert a cutting tool into the recess and the engaging rod being accidentally cut off.

[Brief explanation of the drawing]

FIG. 1 is a vertical sectional front view of the lock according to this invention, FIG. 2 is a sectional view taken along the line - in FIG. 1, and FIG. 3 is a front view showing an example of the use of the lock. DESCRIPTION OF SYMBOLS 1... Lock box, 3... Connector insertion recess, 4... Rod insertion hole, 5... Engagement rod, 10... Spring, 11... Engagement groove, 13... Cylinder, 14
...Lock lever, 19...Kitsuku spring.

Claims (1)

[Scope of utility model registration request] A connector insertion recess is formed on the outer periphery of the lock box, a rod insertion hole is formed intersecting the insertion recess, and one end of the rod insertion hole is opened at the outer peripheral surface of the lock box,
A spring is provided for pressing the engaging rod slidably inserted into the rod insertion hole toward the opening of the rod insertion hole, and the lock box is provided with a spring that presses the engaging rod slidably into the rod insertion hole. disposing a rotatable locking lever that is engageable and biased by a spring in a direction that presses against the engagement rod;
This lock has a cylinder in the lock box for rotating the lock lever.