KR20190002809U - Lock with improved shackle locking structure - Google Patents

Abstract

The present invention relates to a lock having an improved locking structure of a hook, and constitutes a pin inserted into a pin hole at a lower end of a first fixing part of the hook, and a pin is inserted into a first fixing hole into which the first fixing part is inserted to be inserted up and down. The pin guide groove which is formed to be movable in the first fixing part in a direction, and a locking jaw that restricts the first fixing part from being further raised while allowing the first fixing part to rotate while the pin is raised to form an upper portion of the hook guide. By achieving the locking operation, and to minimize the cutting of the hook to improve the durability and to improve the productivity of the lock to the lock.

Description

Lock with improved shackle locking structure}

The present invention relates to a lock having improved hook structure, and more particularly, to a lock having improved structure to minimize the cutting processing of the hook to improve durability and increase productivity.

A lock is a device that locks an object to be opened and closed, and its shape and structure may vary widely, but a lock having a simple structure that can be manufactured relatively inexpensively with safety or strength as a lock is commonly used in daily life.

In the conventional configuration of a form called a padlock, it consists of a lock body provided with a hook and a key hole, and a key that is coupled to the key hole of the main body and performs a locking and releasing action of the hook. Locking or unlocking the lock is achieved by engaging the key in the keyhole and rotating it.

As shown in FIGS. 1A and 1B, the conventional lock 1 is a rectangular main body 2 and a plurality of seats that are seated inside the main body 2 and opened and closed by insertion and manipulation of a key 6. Between the key part 3 provided with the accessory, a hook 4 having a '연동' shape interlocking with the key part 3 above the main body 2, and the key part 3 and the hook 4. It consists of a pair of fixing means (5) for moving or securing the hook (4) and the key (6) for rotating and operating the key portion (3).

However, as shown in FIGS. 1A and 1B, the conventional lock 1 has a semicircular shape below the locking groove 4-1 so that the hook 4 can move up and down without disturbing the fixing means in the unlocked state. A bottleneck shape is formed below the semicircular groove 4-3 so that the groove 4-3 is formed in the longitudinal direction, and the hook 4 can rotate 360 ° without being completely separated from the main body 2. The engaging portion 4-2 of the was formed.

Therefore, the processing process for forming the engaging portion (4-2) and the semi-circular groove (4-3) is added to increase the production cost and time, so productivity is lowered, the bottleneck is fragile and can be easily broken There was a problem that the function as a lock is weakened.

The present invention devised in view of the above problems is to provide a lock that improves productivity and improves durability by reducing the processing step of the hook and avoiding excessive cutting.

Therefore, in the present invention, in order to solve the above problems, a key insertion hole for inserting and rotating a key is formed in the center of the lower surface, and first and second fixing holes are formed on the upper surface of the first and second fixing parts of the hook. It is coupled to, and the inner space in addition to the first and the second fixing portion is formed a space for accommodating the cylinder, the socket, the fixing means, the pin, the pin guide groove is formed in the longitudinal direction on the cylindrical surface of the first fixing hole A main body having a pin catching jaw formed at an end of the pin guide groove; A high strength metal rod is formed by bending a '∩' shape, and includes a first fixing part coupled to the first fixing hole so as to be liftable, and a shorter length than the first fixing part, and detachable from the second fixing hole. A second fixing part coupled to the first fixing part, wherein a locking groove is formed symmetrically on opposite sides of the first and second fixing parts, and a pin hole is formed at an end side of the first fixing part to accommodate the pin; With a hook; A pin partially inserted into a pin hole formed at an end side of the first fixing part, and the protruding portion being received in a pin guide groove and a pin catching jaw formed in the main body; A cylinder which is accommodated inside the main body and has a groove formed at an upper portion thereof and coupled to a lower surface protrusion of the socket, and having a key hole formed at the lower surface to insert and rotate the key; A socket having a semicircular socket groove symmetrically formed in the longitudinal direction on a cylindrical surface to accommodate the fixing means, and having a protrusion formed at the lower portion thereof, the socket being coupled to the upper portion of the cylinder; A spherical rigid metal material, characterized in that it comprises a pair of fixing means for symmetrically moving with respect to the socket between the first and second fixing holes.

In order to achieve this purpose, the lock having improved hook structure of the present invention forms a pin hole at the end side of the first fixing part to insert the pin, and the pin guide moves the pin as the hook moves up and down. A groove is formed in the longitudinal direction, and the second locking portion is separated from the second fixing hole, and the first locking portion is caught by the first fixing hole so that the hook can be rotated without leaving the main body so that the pin catching jaw can be rotated. By forming a, there is an effect that can reduce the processing step of the hook and avoid excessive cutting to increase productivity and improve durability.

Figure 1a is an exploded perspective view of a conventional lock
Figure 1b is an operating state showing a process of releasing the lock of the conventional lock
Figure 2a is a cross-sectional view showing a locked state of the present invention
Figure 2b is a cross-sectional view showing an unlocked state of the present invention
3 is a cross-sectional view taken along line AA of FIG. 2B illustrating a state in which a pin is caught in a pin catching jaw of the present invention
Figure 4 is a cross-sectional view showing another embodiment of the hook of the present invention

Hereinafter, with reference to the accompanying drawings will be described in detail with respect to the lock to improve the locking structure of the hook of the present invention.

Prior to this, detailed descriptions of well-known functions or configurations related to the present invention will be omitted in order not to obscure the gist of the present invention, and the thicknesses of the lines and the size of the elements shown in the drawings are exaggerated for clarity and convenience. It can be revealed.

As shown in Figure 2a to 2b, the present invention is the main body 10, the '∩' shaped hook 20 coupled to the main body 10, and one end side of the hook 20 A pin 50 inserted into the pin hole 24 formed in the main body, a cylinder 30 accommodated in the inner space of the main body 10, a socket 31 coupled to and rotated on an upper portion of the cylinder 30; And a pair of fixing means 40 symmetrically moved between the socket 31 and the hook 20 and the key hole 30-1 formed in the cylinder 30 to catch the hook 20. And a key 60 for performing the release operation.

First, a key insertion hole 15 for inserting and rotating the key 60 is formed at the center of the lower surface of the main body 10, and the first and second fixing holes having the same diameter as the hook 20 are formed on the upper surface. 11 and 12 are formed to be coupled to the first and second fixing portions 21 and 22 of the hook 20.

In addition to the first and second fixing parts 21 and 22 of the hook 20, the main body 10 may accommodate the cylinder 30, the socket 31, the fixing means 40, and the pin 50. A space is formed, and the pin guide groove 14 having the same width as the width of the pin 50 is formed in the longitudinal direction on the cylindrical surface of the first fixing hole 11 in the lifting direction of the first fixing portion 21. Accordingly, the pin 50 fixed to the lower end of the first fixing part 21 may also move up and down.

In addition, the hook 20 is separated from the main body 10 while the second fixing part 22 is separated from the second fixing hole 12 and the first fixing part 21 is caught in the first fixing hole 11. A cylindrical pin catching jaw 13 is formed at the end of the pin guide groove 14 so that it can rotate 360 ° without.

The hook 20 bends a high-strength metal rod into a '∩' shape, and includes a first fixing part 21 coupled to the first fixing hole 11 so as to be lifted and lowered, and the first fixing part 21. It is configured to have a second fixing portion 22 is shorter than the length and detachably coupled to the second fixing hole 12.

The grooves 23 are symmetrically formed on opposite surfaces of the first and second fixing parts 21 and 22 so that the fixing means 40 can be fixed to the grooves 23 in the locked state. A pin hole 24 for accommodating the pin 50 is formed at an end side surface of the first fixing part 21.

The fixing means 40 is formed of a spherical rigid metal material in order to increase durability and reliability of fixing, and moves in a symmetrical direction with respect to the socket 31 between the first and second fixing holes 11 and 12. Configure to

The socket 31 forms a pair of socket grooves 31-1 in the longitudinal direction on a cylindrical curved surface, and forms a semicircular groove symmetrically so that the fixing means 40 can be accommodated in the unlocked state. On the lower surface, a protrusion is formed to be coupled to the upper portion of the cylinder 30 and positioned between the fixing means 40.

The cylinder 30 is accommodated inside the main body 10, and a key hole 30-1 is formed in the lower surface thereof, and then rotates at a right angle after inserting the key 60 corresponding to the key hole 30-1. It is operated, the groove is formed in the upper portion of the cylinder 30 is coupled to the protrusion of the lower surface of the socket 31 as described above.

Looking at the operation of the present invention configured as described above by the operation sequence as follows.

When the lock is locked, the first and second fixing parts 21 and 22 of the hook 20 are inserted into and coupled to the first and second fixing holes 11 and 12 formed in the main body 10. The pair of fixing means 40 are accommodated in the locking grooves 23 of the first and second fixing parts 21 and 22, respectively, and are fixed in a state sandwiched between the socket 31 and the locking groove 23.

At this time, when the key 60 corresponding to the key hole 30-1 of the cylinder 30 is inserted and rotated at right angles, the socket 31 coupled to the cylinder 30 rotates together with the key 60. .

Then, the socket 31 which is pushing the fixing means 40 in the locked state is rotated so that both socket grooves 31-1 are directed toward the fixing means 40 and the free space as much as the socket groove 31-1. Is formed.

In this state, when the hook 20 is pulled up, the fixing means 40, which is caught in the catching groove 23, exits and moves toward the socket groove 31-1, thereby freeing the shank of the hook 20.

However, as in the conventional method, in the unlocked state, the hook portion 4-2, which requires excessive cutting in order to allow the hook 4 to rotate 360 ° in a locked state without being completely detached from the main body 2, and Instead of forming the semicircular groove 4-3, the present invention forms the pin 50, the pin guide groove 14 and the pin catching jaw 13 to achieve the same effect.

That is, when the first fixing part 21 rises when the lock is released, the first fixing part 21 is fixed to the lower end of the first fixing part 21 along the pin guide groove 14 formed in the longitudinal direction on the cylindrical surface of the first fixing hole 11. The pin 50 also rises together, and when the pin 50 reaches the upper end of the pin guide groove 14 and is caught by the cylindrical pin catching jaw 13, the pin 50 does not rise anymore and is accommodated in the pin catching jaw 13. In this state, only 360 ° rotation is possible.

Due to the structure of the pin 50, after the second fixing part 22 is separated from the second fixing hole 12, the hook 4 is not completely separated from the main body 2, and the first fixing part 21 is closed. It is to be able to rotate 360 ° in the state caught in the first fixing hole (11).

By improving the locking structure of the hook 20 as described above, the excessive cutting of the hook 20, which plays an important role in the function of the lock and prevents the occurrence of weak spots and thereby improves durability as well as productivity It can be increased.

Meanwhile, as shown in FIG. 4, instead of coupling the hook 20 and the pin 50, the protrusion 101 may be integrally injection molded on the bottom side of the hook 100. If 100) is formed of a high-strength resin injection, a separate pin is unnecessary and can be produced faster and easier than bending and bonding a metal after forming a pin hole and reducing production cost.

1: conventional lock 2: body
3: kibu 4: hook
4-1: Groove 4-2: Hanging Part
5: fixing means 6: key
10: main body 11: first fixing hole
12: second fixing hole 13: pin locking jaw
14: pin guide groove 15: key insertion hole
20: hook 21: first fixing part
22: second fixing portion 23: locking groove
24: pinhole
30: cylinder 30-1: keyhole
31: socket 31-1: socket groove
40: fixing means 50: pin
60: the key
100: hook 101: protrusion

Claims (1)

A lock comprising a cylinder operated by a key in the center of the main body, a socket operated by the cylinder to lock and release, and a hook into which the first fixing part and the second fixing part are inserted into the main body.
Constitute a pin inserted into the pin hole at the lower end of the first fixing part,
A pin guide groove is formed in the first fixing hole into which the first fixing part is inserted to move the first fixing part in the vertical direction, and the first fixing part is further raised while allowing the first fixing part to rotate while the pin is raised. Improved locking structure of the hook, characterized in that for forming a locking jaw to restrict the upper limit of the pin guide groove.

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