JPH0230596Y2 - - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to a connecting lock in which J-shaped lock rods are provided on both end faces of a padlock, and its purpose is to provide a lock convenient for connecting chains.

An embodiment of the present invention will be described based on the embodiments shown in the drawings.

In Figures 1 to 4, reference numeral 1 is a nearly square lock body, with a large circular protuberance 2 on the front of a thick plate, and side walls 3 raised on the four sides of the back side to form a case shape. A cover plate 4 having a large circular protuberance 5 is fitted into the side wall of the lock body. 6 is a screw hole provided at the lower center of the inner surface of the lock body 1, and screw the screw 8 passed through the small hole 7 of the cover plate to connect the cover plate 4 to the lock body 1, and crush the head of the screw 8. To prevent the cover plate 4 from being removed. Reference numerals 10 and 10 designate two J-shaped lock levers. A pin 11 is set up on the long base, and a U-shaped notch 12 is provided. The base parts are inserted into the upper parts of both end faces of the lock body 1, and the lock levers are closed. 6 into and out of the receiving hole 13 in the lower corner of the lock body.

A semicircular groove 14 is cut out in the upper part of the inner surface of the lock body 1, and voids 15 are provided at both ends thereof, and a raised part 16 is provided protrudingly in the upper part of the front face of the cover plate 4 to form a semicircular groove 17. Hollow out, guide groove 18 on the bottom of this semicircular groove
At the same time, leave voids 19 at both ends of the raised portion 16, join the cover plate 4 to the lock body 1, and form the semicircular groove 1.
4, 17, a long round hole 20 is formed in the upper part thereof,
One void 21 is created by combining the voids 15 and 19.
The lock rod 10 has a long base inserted into the round hole 20 from both ends of the lock body 1 so that they face each other in the center, and the tension spring 23 is housed in the recess 22 on the end surface.
The pin 11 is fitted into the guide groove 18 and the lock rod 10 is moved straight forward and backward. When the lock rod 10 is pushed by the spring 23 and fully advanced, the pin 11 enters the space 21. , here is the lock 1
0 can be rotated and also stopped from being pulled out.

Reference numerals 24 and 24 denote stepped vertical grooves cut at both ends of the lock body 1. A locking piece 25 having a stepped surface 26 and a push spring 27 are housed in the vertical grooves, and the tip of the lock rod 10 is inserted into the receiving hole 13. When pushed in, the tip of the locking piece 25 is pushed into the notch 12 of the lock rod to lock the lock. S is a cylinder lock, and its plug 30 is fitted into a circular cavity 28 provided in the center of the inner surface of the lock body 1, and a tumbler piece 31 is inserted into one of the drop grooves 29 cut in the upper and lower cavity surfaces. Prevents the plug from rotating. A paper-shaped cam 33 is provided on the short small diameter portion 32 protruding from the inner end surface of the plug 30, and the front end surface with the key hole 34 is exposed through the window hole 35 of the lock body, and when the key K is inserted, the tumbler piece 31 After entering the other falling groove 29, it is aligned with the circumferential surface of the plug 30, so that the plug can be rotated. Reference numeral 36 denotes a vertically elongated U-shaped spring piece, whose circular base is placed over the round protrusion 37 at the lower center of the inner surface of the lock body, and both legs of the spring are fitted into thin notches 38, 38 cut on both sides of the plug 30. Insert the plug 3 with this spring piece 36.
When the key K is inserted into the plug and rotated, and the key is removed, the plug 30 is reversed by the elasticity of the spring piece 36 and returns to the locked position.

Reference numeral 40 denotes an intermediary ring, which is placed in a shallow circular recess 41 bored into the inner surface of the cover plate 4, with a stepped cam hole 42 made of large and small semicircles made in the end face, and into which the small diameter portion 32 of the plug is fitted. Fit the cam 33 on the large circle side, leaving some room on both sides. 43, 43 are claw pieces provided on both sides of the intermediate ring 40, which are hooked onto the step surface 26 of the locking piece to be interlocked with the locking piece 25, and when the plug 30 is rotated, either one of the claws can be moved through the intermediate ring 40 by rotating the plug 30. The claw piece 43 moves the locking piece 25 back and pulls it out from the notch 12 of the lock rod.

One embodiment of the present invention has the above configuration, and when connecting a chain (not shown), a lock rod 1 is attached to the side end of the chain (not shown).
0 and 10, push the lock lever into the lock body 1, and insert the tip into the receiving hole 13. At this time, the locking piece 25
The tip of the lock slides against the base of the lock rod 10, and when the lock rod is fully inserted, this tip enters the notch 12 of the lock rod.
The left and right lock rods 10, 10 are locked to connect the chains. In this connected state, the left and right lock levers 10, 10
Since the lock rods 10, 10 are pulled by the chains, they are symmetrical and look good, and the lock rods 10, 10 are pulled by the left and right chains one by one, so they are less likely to be damaged.

When attempting to separate the chain, insert the key K into the key hole 34 and turn the plug 30. plug 3
0 rotates clockwise in Fig. 2, the intermediate ring 4
0 also rotates clockwise, the claw piece 43 on the right side presses down the stepped surface 26 of the locking piece on the right side, and the locking piece 25 is pulled out from the notch 12 of the locking piece on the right side, so that this locking rod 10 It is pushed by the spring 23 and advances from the lock body 1. As a result, the tip of the lock lever is placed in the hole 1 of the lock body.
It will come off from 3, so turn lock rod 10 and remove the chain. When the plug 30 is turned counterclockwise (FIG. 2), the left lock lever 10 comes out from the lock body in the same way. When reconnecting the chain, pass the lock rod 10 through the side end of the chain, push the lock rod fully into the lock body with the tip of the lock rod facing the receiving hole 13, and insert the tip of the locking piece 25 into the notch 12. Hang it and lock it.

The above is an explanation of one embodiment of the present invention, and the present invention is not limited to this embodiment, and the design can be changed within the gist of the invention.

In the present invention, J-shaped locking rods are provided on both end faces of the padlock, locking pieces are inserted into the notches to lock the locking rod, and claws are attached to both sides of the intermediary ring that engages with the plug of the cylinder lock. The padlock is hooked onto the stepped surface of the locking piece, and the right and left locking pieces are moved back by the rotation of the plug.With these configurations, the two locking rods provided on both end faces of the padlock can be combined into one cylinder. The lock can be opened with a lock, and by hooking the side ends of the chain to the left and right lock levers, it is possible to connect the chains in an attractive manner and create a connecting lock that is difficult to break.

[Brief explanation of the drawing]

The drawings show an embodiment of the present invention; Fig. 1 is a front view of the embodiment, Fig. 2 is an inner view with the cover plate removed, Fig. 3 is an inner view of the cover plate, and Fig. 4 is a front view of the embodiment. is the first
5 is a perspective view of the plug and the intermediary ring. Note that 1 is the lock body, 4 is the cover plate, 10 is the lock lever,
12 is a notch, 13 is a receiving hole, 20 is a round hole, 24 is a vertical groove, 25 is a locking piece, 26 is a stepped surface thereof, 27 is a push spring, 28 is a cavity, S is a cylinder lock, 30 is a plug, 33 40 is a cam, 41 is a recess, 42 is a cam hole, and 43 is a claw piece.

Claims (1)

[Scope of utility model registration request] A long round hole and a shallow receiving hole are provided in the mating surfaces of the lock body and the overlapping cover plate, and the bases of the two J-shaped lock rods are inserted into the round holes from both ends of the lock body and their tips are received. A vertical groove is provided at both ends of the lock body to accommodate a stepped locking piece and a push spring, and the tip of the locking piece is inserted into a notch in the locking rod to lock the locking rod. The plug of the cylinder lock is fitted into the cavity in the center of the lock body, and the intermediary ring is placed in the recess of the cover plate.The cam provided on the inner end surface of the plug is engaged with the cam hole on the end surface of the intermediary ring. A connecting lock characterized in that claw pieces provided on both side edges of the lock are hooked onto stepped surfaces of the locking piece, and the left and right locking pieces are moved back by rotation of the plug.