JPH0539169Y2 - - Google Patents

Description

[Detailed description of the invention] A. Field of industrial application The present invention relates to a barlock type padlock used in warehouses, storage sheds, storage boxes, refrigerated cars, garages, etc.

B. Conventional technology Bar lock type padlocks have been used since ancient times in rice warehouses.
It has been widely used for kinzo, product warehouses, etc.

In addition, in recent years, cylinder-type padlocks have been used in warehouses,
Widely used for storage, storage boxes, freezers, garages, gates, etc.

C. Problems that the invention aims to solve The bar lock type padlock that has been used for a long time seems heavy and sturdy, but it has the disadvantage that it can be easily unlocked with a shaped metal fitting.

Additionally, cylinder-type padlocks were small, weightless, and looked flimsy, and had the disadvantage of not being suitable for large gates and doors such as storehouses.

In view of the above points, the present invention provides a padlock that is heavy, has an excellent design, is highly secure, and is suitable for large gates and doors.

D. Means for solving the above problems The padlock according to the present invention has rings 7, 7 of the door 6 etc.
In a bar lock type padlock in which the bar 21 of the bar 2 is passed through and the tip of the bar 21 is fitted into the lock case 1 to lock the padlock, the cylinder lock 3 is attached to the lock case 1, and the lock member 31 of the cylinder lock 3 is locked. This is because it is configured so that it can be locked to the bolt 2.

E. Function ◎ Locking Insert the bar 21 of the bolt 2 into the rings 7, 7 of the closed doors 6, 6, and fit the lock case 1 into the bolt 2.

When the bolt 2 is fitted into the lock case 1, the tips of the locking plates 22, 22 of the bolt 2 come into contact with the stoppers 17, 17 on the lock case 1 side as shown in FIG. 3, and the main lock A is locked. will be done.

Next, when the locking operation is performed using the key of the cylinder lock 3, the locking member 31 rotates and is fitted into the locking hole 24 of the protrusion 23a at the lower end of the main body plate 23 and locked, and the cylinder lock 3 is locked. .

◎ Unlocking When the cylinder lock 3 is unlocked using the key, the lock member 31 rotates and the main body plate 23
is removed from the locking hole 24, and the cylinder lock 3 is unlocked.

Next, when the key 5 is inserted into the key guide 15 through the keyhole 14 and rotated counterclockwise, the forked key pawl 51 of the key 5 is inserted into the locking plate 2 of the main body plate 23.
2, 22 and presses the locking plates 22, 22 against the main body plate 23 to release the stoppers 17, 17.
Release the engagement with.

When the key 5 is further rotated, the bolt 2 is pushed forward and pulled out from the opening side 16 of the lock case 1, and at the same time the tip of the bar 21 is inserted into the holder 12 of the lock case 1.
, and main lock A is unlocked.

F. Example Hereinafter, one example of implementing the present invention will be described in detail based on the drawings.

The padlock of the present invention is composed of a relatively large main lock A consisting of a lock case 1 and a bolt 2, and a cylinder lock 3 attached to the lock case 1.

The lock case 1 is formed of a metal material such as a stainless steel plate, cast iron, or copper alloy into a hollow structure with an opening on one side, and is surface-treated in consideration of wear resistance, corrosion resistance, and aesthetics. .

More specifically, it has a symmetrical shape with a convex part 11 at the bottom center and a holder 12 protruding from the top of both sides into which the bar 21 of the bolt 2 is inserted, and the family crest, company emblem, warehouse number, etc. at the center of the front. A mark display surface 13 to which the mark 4 etc. is pasted is formed, and
A keyhole 14 is provided below the mark display surface 13.

The mark 4 may be applied to the mark display surface 13 by any method such as printing, groove engraving, etc. The number and size of the marks 4 are appropriately selected according to the size of the lock case 1, etc.

At the center of the upper part of the keyhole 14 is the key 5 of the main lock A.
A key guide shaft 15 is provided for fixing the position of the key guide shaft 15.

Further, stoppers 17, 17 are provided inwardly projecting near the center of the opening side 16 of the lock case 1, and a cylinder lock 3 is mounted on the lower surface 18 on the opposite side with a screw.

The stoppers 17, 17 prevent the lock 2 from entering beyond a predetermined position (the state shown in FIG. 3) on the one hand, and on the other hand prevent the locking plates 22, 22 of the bolt 2 from being pulled out. Lock lock A.

The bar 2 of the main lock A is made of a metal material such as stainless steel, iron steel, or copper alloy, and has a base connected to the bar 21 and the main body plate 23 that is inserted into the hollow part of the lock case 1. It has a letter-shaped structure.

More specifically, the bar 21 has a tapered cylindrical shape and is shaped to be easily inserted into the holders 12, 12 of the lock case 1, and the main body plate 23 has a lower surface inclined upward toward the tip side and a protruding portion below the tip. A locking hole 24 for locking the locking member 31 of the cylinder lock 3 is bored in the protrusion 23a, and the base ends of the locking plates 22, 22, which have a plate spring action, are connected to the main body plate 23.
It is welded to both sides of the tip side in a V-shape when viewed from above.

When the locking plates 22, 22 are locked, the locking plates 22, 22 are
As shown in the figure, the stoppers 17, 1 of the lock case 1
The bolt 2 comes into contact with the inside of the lock 7 and is structured so that the bolt 2 does not come off from the lock case 1 unless the main lock A is unlocked.

On the other hand, the key 5 for the main lock A is used to open the lock by pushing the locking plates 22, 22 of the lock 2 toward the main body plate 23 and pushing the lock 2 toward the opening side 16, as shown in FIG. It has a substantially forked key pawl 51.

For example, as shown in Fig. 1, such a padlock is made by inserting the bar 21 of the bolt 2 into the rings 7, 7 attached to the doors 6, 6 of a closed warehouse, and then inserting the tip of the bar 21 into the lock case. 1 into the holder 12 and locked with the main lock A.

Next, by locking the cylinder lock 3, the lock member 31 is rotated to lock the main body plate 23 of the bolt 2.
Double locking is achieved by fitting and locking into the locking hole 24 at the lower end.

The position of the cylinder lock 3 relative to the lock case 1 is not limited to the lower surface 18 opposite to the opening side 16, but may be located on the opposite side to the opening side 16 depending on the application. It goes without saying that the locking method of the locking member 31 to the main body plate 23 is not limited to the structure described above.

Effects of the invention As described above, the padlock according to the invention has a double lock type in which the locking member 31 of the cylinder lock 3 is locked and fixed to the bolt 2, in addition to the regular padlock main lock A. If only main lock A is used to open the padlock, the padlock will not open, ensuring high safety.

In addition, the lock case 1 is symmetrical and well-balanced, making it suitable for large gates and doors 6, giving it a sense of weight, and forming a mark display surface 13 on the front to display family crests, company emblems, numbers, and other marks 4. There are effects such as being able to attach items such as

[Brief explanation of drawings]

Fig. 1 is a front view showing a locked state of an example of the present invention, Fig. 2 is a sectional view of the lock case 1 in a broken state, and Fig. 3 is a plan sectional view taken along the line shown in Fig. 1. , FIG. 4 is a side view, and FIG. 5 is a side view of the key 5 of the main lock A. Main symbols in the diagram: 1...lock case, 2...bark, 3
... Cylinder lock, 18 ... Bottom surface, 21 ... Bar, 23 ... Plate, 31 ... Lock member.

Claims (1)

[Claims for Utility Model Registration] (1) A bar lock type padlock in which the bar 21 of the bar 2 is passed through the rings 7, 7 of the door 6, etc., and the lock case 1 is inserted into the tip of the bar 21 to lock the padlock.
A padlock characterized in that a cylinder lock 3 is attached to a lock case 1, and a locking member 31 of the cylinder lock 3 is configured to be latched to a bolt 2. (2) The padlock according to claim (1), characterized in that a mark display surface 13 is formed on the front surface of the lock case 1.