JPH07207997A - Padlock - Google Patents

Abstract

PURPOSE:To improve a handling characteristic and prevent illegal unlocking by providing a key engaging part and an engaged part on the outer wall face of slide lock plate for closing a key hole, of a cylinder body side wall, and making a magnetic pin tunbler engage with the groove of inner wall face. CONSTITUTION:In a key part 16b of a key 16 is inserted into a key hole 6, an engaging part of the key 16 is engaged with an engaged part 18 of a slide lock plate 12. Positioning is then made and also each magnetic pin tunbler 20 repellingly moves in the slide lock plate 12 unlocking direction in correspondence with the polarity of each magnetic body 21 of the key 16. The engagement is then maintained, and the plate 12 is moved horizontally in the outer direction, and the key hole 6 of truning body 5 comes out. Through rotation of the key 16a locking hook 2 is turned into an unlocking condition. In closing the hole 6 through locking, an outer end of the plate 12 is pushed in and the key hole 6 is closed and the tunbler 20 is reset by means of a spring member 22. The engagement with the tunbler groove 15 of the plate 12 closes the hole 6 and locking is made by the tunbler.

Description

Detailed Description of the Invention

[0001]

FIELD OF THE INVENTION The present invention relates to padlocks.

[0002]

2. Description of the Related Art Conventionally, a padlock is generally composed of a box-shaped lock body and an inverted U-shaped locking hook provided on the lock body in a protruding state, and a rotating body is provided on the bottom wall of the lock body. Key hole (key groove) appears.

Therefore, this type of padlock has a risk of being easily mischieved or illegally unlocked by utilizing the exposed key hole. Therefore, there is currently a demand for a device that prevents the padlock from being unlocked illegally.

[0004]

In view of the above conventional demands, the present invention can first prevent the padlock from being easily unlocked, and then directly or indirectly through the keyhole of the padlock. The object is to obtain a padlock that can be easily released by sliding the slide lock plate that is shielded to the back, and can be easily slid.

[0005]

The padlock of the present invention is provided with a slide lock plate on the side wall of the lock body so that the key hole can be shielded, and a tumbler groove is formed on the inner wall surface of the slide lock plate. On the other hand, on the outer wall surface of the slide lock plate, an engaged portion that engages with the engaging portion of the key is formed, and the lock body is always urged in one direction by a spring member, and A magnet pin tumbler to be engaged is incorporated, and the magnet pin tumbler moves in a direction to unlock the slide lock plate in accordance with the polarity of the magnetic body provided on the duplication key.

In the padlock of the present invention, a slide lock plate is provided on one side wall having no key hole of the lock body, and a tumbler groove is formed on the inner wall surface of the slide lock plate, while the outer wall surface of the slide lock plate is formed. Is formed with an engaged portion that engages with the engaging portion of the duplicating key, and the lock body engages with the tumbler groove while being biased by a spring member, and the polarity of the magnetic body provided on the duplicating key. Incorporating a magnet pin tumbler that moves in the direction of unlocking the slide lock plate corresponding to, the other side wall where the key hole orthogonal to the one side wall of the lock body is located, and, An opening / closing plate whose outer end portion is locked by the slide lock plate when locked is slidably provided.

[0007]

When inserting the duplicate key portion of the duplicate key into the key hole, first, the knob portion of the duplicate key is aligned with the outer wall surface of the slide lock plate, and the engaging portion of the duplicate key is engaged with the engaged portion of the slide lock plate. . When the engaging part is engaged with the engaged part, positioning is achieved and at the same time, each magnet pin tumbler responds to the polarity of each magnetic body of the duplicate key and repulsively moves in the direction to unlock the slide lock plate. To do. Therefore, the slide lock plate is moved outwardly by a required amount through the duplication key while maintaining the engaged state of both. Then, in the first embodiment, the key hole of the rotating body immediately appears. In the second embodiment, the opening / closing body released from the slide lock plate is further slid outward. Next, when the key hole appears, remove the duplicate key from the slide lock plate, insert the duplicate key portion into the key hole, and rotate the rotating body in the unlocking direction.
As a result, the locking hook is unlocked.

On the other hand, the locking hook is locked on the lock body,
When the key hole of the rotating body is to be shielded, the outer end portion of the slide lock plate is pushed in in the first embodiment. In addition, in the second embodiment, after pushing the open / close plate with the thumb, the outer end of the slide lock plate is pushed in. Then, the slide lock plate or the opening / closing plate closes the key hole.

[0009]

The present invention will be described in detail below with reference to the embodiments shown in the drawings.

In the first embodiment shown in FIGS. 1 to 6, X is composed of a box-shaped lock body 1 and an inverted U-shaped locking hook 2 provided on the lock body in a protruding state. It is a padlock. The locking hook 2 has a base portion 2a formed to be longer than the locking portion 2b.

Therefore, the base portion 2a is fitted in the fitting hole provided in the lock body 1 and is biased in the projecting direction by the hook spring member 3. The base 2a is locked by a hook retaining pin 4 that engages with a recess formed in the step.

On the other hand, the locking portion 2b is provided so as to fit into the other hook hole of the lock body 1 in a locked state, and an engaging groove is formed inside.

Reference numeral 5 denotes an inner cylinder or a cylindrical rotating body provided in the central portion of the lock body 1, and a key hole (key groove) 6 is formed in this rotating body.

Therefore, the rotary body 5 has a plurality of pin tumblers 7, and the lock body 1 has the pin tumblers 7 described above.
A plurality of pin tumblers 8 facing each other are incorporated respectively, and these pin tumblers 7, 8 are biased in one direction by a tumbler spring member 9. Further, a protrusion 5a is formed on the upper end of the rotating body 5.

Reference numeral 10 denotes a cam engagement body which is internally provided on the upper side of the lock body 1 and is constantly urged by a cam spring 11 in a direction to engage with the locking portion 2b of the locking hook. A notch 10a that engages with the protrusion 5a of the rotating body 5 is formed at an appropriate position of the cam engaging body 10, and the cam engaging body 10 engages with the rotating body 5 so as to interlock with the unlocking direction. .

Next, 12 is a slide lock plate provided on the side wall (bottom wall) of the lock body 1 so that the key hole 6 of the rotating body 5 can be shielded. This slide lock plate 1
2 is slidably guided in a U-shaped guide groove 14 formed in the bottom wall 13.

Therefore, a plurality of tumbler grooves 15 are formed on the inner wall surface of the slide lock plate 12, while
On the outer wall surface of the slide lock plate 12, the duplicate key 16 shown in FIG.
An engaged portion 18 that engages with the engaging portion 17 is formed. In the present embodiment, at least one of the engaging portions 17 of the duplicate key 16 is an engaging protrusion for positioning, and the knob 16
Two pieces in total are formed before and after one side wall of a.
Therefore, the engaged portions 18 of the slide lock plate 12 that engage with the engaging portions 17 correspondingly are a plurality of recesses.

Next, 20 is a plurality of magnet pin tumblers which are assembled in the lock body 1 in a state of being urged in one direction by the spring member 22 and which are always engaged with the tumbler groove 15 of the slide lock plate. These magnet pin tumbler 2
0 corresponds to the polarities of the plurality of magnetic bodies 21 embedded in the knob 16a of the duplicate key 16, and repulsively moves in the direction to unlock the slide lock plate 12.

In the above-mentioned structure, the duplicate key section 16 of the duplicate key 16
When inserting b into the key hole 6 of the rotating body 5, first, the duplicate key 16
The grip portion 16a is aligned with the outer wall surface of the slide lock plate 12, and the engagement portion 17 of the duplicate key 16 is engaged with the engaged portion 18 of the slide lock plate 12. When the engaging portion 17 is engaged with the engaged portion 18, the positioning is achieved, and at the same time, each magnet pin tumbler 20 causes each magnetic body 2 of the duplicate key 16 to be positioned.
The slide lock plate 12 is repulsively moved in the unlocking direction corresponding to the polarity of 1. Therefore, the slide lock plate 12 is horizontally moved outward by a required amount through the duplicating key 16 while maintaining the engagement state of both. Then, the key hole 6 of the rotating body 5 appears.

Next, when the key hole 6 appears, the compound key 16 is removed from the slide lock plate 12, the compound key portion 16b is inserted into the key hole 6 of the rotating body 5, and the rotating body 5 is rotated in the unlocking direction. As a result, the locking hook 2 is unlocked as shown in FIG.

On the other hand, when the lock hook 2 is locked on the lock body 1 and the key hole 6 of the rotating body 5 is to be shielded, the outer end portion of the slide lock plate 12 is pushed. Then, the slide lock plate 12 slides while being guided by the guide groove 14 of the bottom wall 13 and closes the key hole 6, and at the same time, each magnet pin tumbler 20 is returned by the spring force of the spring member 22 to move the slide lock plate. Engage with each tumbler groove 15. As a result, the slide lock plate 12 is locked by each magnet pin tumbler 20 with the key hole 6 closed.

Next, a second embodiment shown in FIGS. 7 to 12 will be described. The padlock X1 of this embodiment is composed of a lock body 1A and an inverted U-shaped locking hook 2A provided on the lock body in a protruding state, and the basic structure is the same as that of the first embodiment. The same reference numerals are given to the same portions, and the duplicated description will be omitted. Therefore, mainly different points will be described.

However, this padlock X1 is a lock body 1
A slide lock plate 12A guided by the second guide groove 32 is provided on one side wall 30 having no key hole 6A of A, and the tumbler groove 15 is provided on the inner wall surface of the slide lock plate 12A.
A is formed on the outer wall surface of the slide lock plate 12A, and a recessed engaged portion 18A is formed on the outer wall surface of the slide lock plate 12A to engage with the protruding engaging portion 17A of the compound key 16A. The lock body 1A has a spring member 22A. A plurality of magnetic bodies 2 that are engaged with the tumbler groove 15A while being biased by the
Incorporating a plurality of magnet pin tumblers 20A that repulsively move in a direction of unlocking the slide lock plate 12A corresponding to the polarity of 1A, and also having a key hole 6A orthogonal to the one side wall 30 of the lock body 1A The side wall (bottom wall) is slidably provided with an opening / closing plate 31 that shields the key hole 6A and has a locking outer end locked to the slide lock plate 12A.

In this embodiment, the protrusion-like engaging portion 18A is provided at an appropriate position on the peripheral wall surface of the knob portion 16. This is formed by aligning the duplicate key 16A with the slide lock plate 12A. This is because it is easy to hold the duplicate key 16A when the engaging portion 17A is engaged with the recessed engaged portion 18A. Therefore, the projection-like engaging portion 18A may be provided at an appropriate position as long as the positioning of the duplicate key 16A is possible and the slide lock plate 12A can be pulled out.

In the above-mentioned structure, the duplicate key section 1 of the duplicate key 16A
When inserting 6b into the key hole 6A of the rotating body 5, first, the peripheral wall portion of the knob 16a of the duplicate key 16A is slid onto the slide lock plate 12.
The fitting portion 1 of the duplicate key 16A is aligned with the outer wall surface of A.
7A is engaged with the engaged portion 18A of the slide lock plate 12A. When the engaging portion 17A is engaged with the engaged portion 18A, positioning is achieved, and at the same time, each magnet pin tumbler 20A corresponds to the polarity of each magnetic body 21A of the compound key 16A and locks the slide lock plate 12A. Repulsive movement in the direction to release. Therefore, the slide lock plate 1 is inserted through the duplicate key 16A while maintaining the engaged state of both.
Move 2A slightly outward. As a result, the opening / closing plate 31
Is released from the slide lock plate 12A. Therefore, the open / close plate 31 is slid outward with the thumb. Then, the key hole 6A of the rotating body 5 appears.

Next, when the keyhole 6A appears, the duplicate key 16
A is removed from the slide lock plate 12A, and its key part 16
Insert b into the key hole 6A of the rotating body 5 and rotate the rotating body 5 in the unlocking direction. As a result, the locking hook 2A is shown in FIG.
As shown by 1, the unlocked state is established.

On the other hand, when the locking hook 2A is locked on the lock body 1A and the key hole 6A of the rotating body 5 is to be shielded, the outer end portion of the opening / closing plate 31 is first pushed in. Then,
The opening / closing plate 31 slides while being guided by the guide groove 14A of the bottom wall 13A to close the key hole 6A. Next, the outer end portion of the slide lock plate 12A is pushed in. Then, the slide lock plate 12A slides while being guided by the second guide groove 32 of the one side wall 30, each magnet pin tumbler 20A returns by the spring force of the spring member 22A, and each tumbler groove 15A of the slide lock plate. Engage. As a result, the slide lock plate 12A is locked by each magnet pin tumbler 20A while the key hole 6A is closed via the opening / closing plate 31. At this time, the slide lock plate 12A serves as a stopper for the opening / closing plate 31.

[0028]

As is apparent from the above description, the present invention has the following effects. (1) Since the slide lock plate that directly shields the keyhole of the padlock or indirectly shields it through the opening / closing plate is provided on the side wall of the lock body, it is easy to use the exposed keyhole. There is no risk of mischief or unauthorized unlocking. (2) To unlock the slide lock plate,
By aligning the knob part of the compound key with the outer wall surface of the slide lock plate and engaging the engaging part of the compound key with the engaged part of the slide lock plate, positioning is achieved and at the same time, each magnet pin tumbler is Corresponding to the polarity of each magnetic body, it repulsively moves in the direction to unlock the slide lock plate. Therefore, the slide lock plate that directly or indirectly shields the key hole of the padlock can be easily released and easily slid.

[Brief description of drawings]

FIG. 1 to FIG. 6 are schematic explanatory views showing a first embodiment of the present invention. Therefore, FIG. 1 is an explanatory diagram of the whole.

FIG. 2 is a front view of the padlock of the present invention.

FIG. 3 is a right side view of the padlock of the present invention.

FIG. 4 is a bottom view of the padlock of the present invention.

FIG. 5 is a schematic explanatory view showing an unlocked state of the present invention.

FIG. 6 is a schematic explanatory view showing a relationship between a slide lock plate and a duplicate key when the locking hook of the padlock of the present invention is in a locked state.

FIG. 7 to FIG. 12 are schematic explanatory views showing a second embodiment of the present invention. Therefore, FIG. 7 is an explanatory diagram of the whole.

FIG. 8 is a front view of the padlock of the present invention.

FIG. 9 is a right side view of the padlock of the present invention.

FIG. 10 is a bottom view of the padlock of the present invention.

FIG. 11 is a schematic explanatory view showing an unlocked state of the present invention.

FIG. 12 is a schematic explanatory view showing the relationship between the slide lock plate and the duplicate key when the locking hook of the padlock of the present invention is in the locked state.

[Explanation of symbols]

 X, X1 ... Padlock, 1, 1A ... Lock body, 2, 2A ... Locking hook, 5 ... Rotating body, 6, 6A ... Key hole, 12, 12A ... Slide lock plate, 15, 15A ... Tumbler groove, 16, 16A ... Duplicate key, 17, 17A ... Engagement part, 8, 18A ... Engagement part, 20, 20A ... Magnet pin tumbler, 21, 21A ... Magnetic material, 22, 22A ... Spring member, 30 ... One side wall, 31 ... Opening and closing plate.

Claims (3)

[Claims] 1. A slide lock plate is provided on a side wall of a lock body so as to shield a key hole, and a tumbler groove is formed on an inner wall surface of the slide lock plate, while an outer wall surface of the slide lock plate is formed. Forms an engaged portion that engages with the engaging portion of the duplicate key, and incorporates a magnet pin tumbler that is constantly urged in one direction by a spring member in the lock body and that engages with the tumbler groove. The padlock is characterized in that the pin tumbler moves in a direction in which the slide lock plate is unlocked corresponding to the polarity of the magnetic material provided on the duplicate key. 2. The padlock according to claim 1, wherein the engaging portion of the duplicate key is an engaging protrusion for positioning. 3. A slide lock plate is provided on one side wall of the lock body having no key hole, and a tumbler groove is formed on an inner wall surface of the slide lock plate, while a lock key is provided on an outer wall surface of the slide lock plate. Forming an engaged part that engages with the mating part,
A magnet pin tumbler that engages with the tumbler groove while being biased by a spring member on the lock body, and moves in a direction to unlock the slide lock plate in accordance with the polarity of the magnetic body provided on the duplicate key. And the other side wall where the key hole orthogonal to the one side wall of the lock body is located,
A padlock, which shields the key hole and is slidably provided with an opening / closing plate whose outer end is locked by the slide lock plate when locked.