JP4168112B2 - padlock - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a padlock, and more particularly, to a padlock that can be locked even when the free end of a shackle is directed in the left or right direction when viewed from the front.
[0002]
[Prior art]
The padlock is conventionally used as a locking device such as a hammer, and has a generally rectangular main body portion and an inverted U-shaped shackle, and a locked state in which the end of the shackle is inserted into the main body portion, and An unlocked state in which the tip of the shackle is detached from the main body and becomes free is controlled by a lock incorporated in the main body.
[0003]
[Problems to be solved by the invention]
Normally, the padlock is locked by inserting the free end of the shackle in the unlocked state into the hole of the hook of the hook, and then inserting the free end into the hole of the main body.
[0004]
By the way, depending on the position of the latch hole, there is a case where the free end of the shackle can be inserted only from one right or left direction.
[0005]
Therefore, in some cases, the main body must be turned over and locked, which not only looks bad, but also has the inconvenience that it is difficult to unlock when the keyhole on the lock is open on the front of the main body. is there.
[0006]
An object of the present invention is to provide a padlock that can solve the above inconveniences and can be locked even when the free end of the shackle is directed to the left or right as viewed from the front.
[0007]
[Means for Solving the Problems]
In order to achieve the above-mentioned object, the invention described in claim 1 is a flat main body, and is supported within the main body so as to be rotatable around a virtual rotation shaft that penetrates the main body in the thickness direction. And a thick disk-shaped control panel guided so as to be movable in the direction of the rotation axis, and the rotation axis of the control panel protruding in a radial direction over a certain angular range at the outer periphery of the control panel. engaging a pawl plate which cross-sectional shape which is cut has an arcuate outer periphery of hooked by the plane, the whole shape substantially question mark shape, from the side front of the outer and the body portion of the nail plate to the lower end of the question mark including A groove portion is formed, the lower end portion is guided through the outer edge of the main body portion so as to be movable in a direction perpendicular to the rotation axis of the control panel, and is biased outward in a direction away from the control panel. a shackle that is, projecting radially at least one location of the outer peripheral edge of the control panel A portion of the ring portion having a stop projection and a ring portion formed along the movement locus on the rear side of the lock projection, and aligned with the lock projection when the control panel is at the unlocking angular position Is provided with locking means for allowing the control panel to move backward only when the control panel is at the unlocking angle position, and a lock for controlling the rotation of the control panel. A locking hole for receiving the free end of the shackle is opened on the outer edge symmetrically with respect to the midline of the main body.
[0008]
The invention according to claim 2, the lock is Oite its virtual pivot shaft coaxial to the front of the control panel, and integrally projecting, projects outward through the body portion front connecting shaft which, along an arc of a predetermined radius centered on imaginary pivot axis at the front of the control panel, a plurality of blind holes formed at predetermined angular intervals, housed in a blind hole that is selected I if at least one magnet tumbler and tumbler, in a predetermined angular position of the control panel, blind hole as many holding hole opened in the front surface of the main body portion in alignment with the blind hole of the control board, and, this holding hole opening When a lock part having a cover plate covering the front part of the main body part and a recessed part that fits with the tip of the connecting shaft of the control panel are formed, and this recessed part is fitted with the connecting shaft of the control panel A key magnet that is aligned with the same magnetic pole as the magnet tumbler of the control panel is embedded, and this The magnet key is provided between the magnet key with the depth of the recessed portion set so as to maintain a predetermined gap between the magnet and the cover plate, and the connecting portion of the recessed portion of the magnet key and the control panel. and a restraining means for restraining the relative rotation between, when fitted to the recessed portion of the magnet key connection shaft of the control panel, the magnet tumbler body by the magnetic repulsion mutual key magnet and the magnet tumblers The engagement between the control panel claw plate and the shackle is released by releasing the engagement with the holding hole of the unit, allowing the control panel to rotate to a predetermined angular position, and pushing the magnet key at this angular position. It is a magnetic tumbler tablet that can be used to solve the problem.
[0009]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, the present invention will be described based on embodiments shown in the drawings.
1 and 2, reference numeral 1 denotes an outer shell of the padlock according to the present invention, and the outer shell 1 is a flat hollow body whose entire shape is, for example, a heart shape.
[0010]
The outer skin 1 is formed by integrally bonding a front case 2 and a rear case 3 made of synthetic resin, for example, by adhering or welding after housing components.
[0011]
In the illustrated embodiment, as shown in FIG. 2, a shallow rectangular recess is formed on the outer surface of the rear case 3 for attaching a so-called print club seal.
[0012]
A thick disc-like control panel 4 is disposed slightly below the inner side of the outer skin 1, and a hollow cylindrical connecting shaft 5 is coaxially and integrally coupled to the front surface of the control panel 4. In addition, an arrow-shaped recess 17 which will be described later is formed on the front end surface of the connecting shaft 5.
[0013]
This arrow serves as an index indicating the locking angle position and the unlocking angle position of the control panel 4, and as shown in FIG. 1, the tip of this arrow points to the OK mark marked on the front surface of the front case 2. Indicates that the control panel 4 is in the unlocking angle position, and when pointing to the NG mark (abbreviation of no good) 45 degrees away from the OK mark in the counterclockwise direction, the control panel 4 is in the locking angle position. It shall be shown that there is.
[0014]
It should be noted that this padlock can be used as a kind of message transmission device by the display of OK and NG.
[0015]
The connecting shaft 5 penetrates through the front case 2 and protrudes to the outside, and is rotatably fitted to an unnumbered connecting shaft hole opened in the front case 2, and as a result, the control panel 4. Is supported so as to be rotatable around a rotation shaft 6 (see FIG. 4) passing through the main body portion in the thickness direction.
[0016]
Furthermore, as shown in FIG. 4, the rear side of the control panel 4 is hollowed out in a convex shape in cross section to reduce the weight, and an elastic armor is provided between the hollowed back concave portion and the rear case 3. The control panel 4 is urged forward (leftward in FIG. 4) by the elasticity of the push spring 7 as a compression coil spring.
[0017]
Further, as shown in FIG. 4, a gap is maintained between the back surface of the control panel 4 (the right side surface in FIG. 4) and the guide portion of the push spring 7 protruding from the inner surface of the rear case 3. Thus, the control panel 4 can move backward by a certain distance.
[0018]
On the other hand, a plurality of blind holes 8, 8 are formed in a fixed development pattern around the connecting shaft 5 on the front surface of the control panel 4.
[0019]
In the illustrated embodiment, four blind holes 8, 8 are formed at equal angular intervals on one circle centered on the rotation shaft 6 (see FIG. 4) with the openings facing forward.
[0020]
As shown in FIG. 4, at least one blind hole selected from these four blind holes 8 and 8 includes a tumbler spring 9 as a compression coil spring and a front-rear direction (left-right direction in FIG. 4). A set of magnetized magnet tumblers 11 is stored.
[0021]
On the other hand, when the control panel 4 is at a predetermined angular position corresponding to the above-described blind holes 8 and 8 of the control panel, in the illustrated embodiment, the tip of the arrow of the connecting shaft 5 is at the angular position pointing to the NG mark. In the portion of the front case 2 aligned with the blind holes 8 and 8 of the board, holding holes 12 and 12 having the same number and the same diameter as these blind holes are opened (see FIGS. 1 and 4).
[0022]
In FIG. 1, the blind holes 8 or the magnet tumblers 11 and the holding holes 12 of the control panel 4 are shown alternately with an angular interval of 45 degrees.
[0023]
Then, in order to prevent the magnet tumbler (see FIG. 4) 11 accommodated across the blind hole 8 and the holding hole 12 from coming out forward by the elastic force of the tumbler spring 9, as shown in FIGS. Further, an annular cover plate 10 covering the holding hole opening of the front case 2 is mounted by a coupling means such as adhesion or fitting.
[0024]
On the other hand, the magnet key 13 as a combined key of the magnet tumbler lock incorporated in the main body as described above is configured as shown in FIG.
[0025]
That is, the magnet key 13 has a shape in which a ring-shaped knob 15 is integrally coupled to a thick plate-shaped main body portion 14 made of synthetic resin, and the front end portion of the connecting shaft 5 of the control panel 4 is fitted on the front surface thereof. A concavity 16 is formed.
[0026]
On the bottom surface of the recessed portion 16, a convex portion 18 is formed that fits into the arrow-shaped concave portion 17 formed on the front end surface of the connecting shaft.
[0027]
And when the front-end | tip part of the connection shaft 5 is fitted to the recessed part 16 in the relative angular position where this convex part 18 and the recessed part 17 of a connection shaft fit, the magnet key of alignment with the magnet tumbler 11 of a control panel is carried out. A key magnet 19 that is opposed to each magnet tumbler 11 with the same magnetic pole is embedded in the main body 14 and covered with a cover plate 21.
[0028]
When the distal end portion of the connecting shaft 5 and the recessed portion 16 of the magnet key 13 are fitted, and the arrow-shaped recessed portion 17 and the projected portion 18 are fitted together, the cover plate 21 of the magnet key and the lid of the front case The depth of the recessed portion 16 is set so that a predetermined gap is formed between the plate 10 and the plate 10.
[0029]
As will be described later, this predetermined gap is used for the operation of releasing the shackle locked to the control panel from the control panel.
[0030]
The arrow-shaped concave portion 17 on the front end surface of the connecting shaft and the arrow-shaped convex portion 18 on the bottom surface of the concave portion of the magnet key constitute a restraining means for restraining the relative rotation of the connecting shaft 5 and the magnet key 13.
[0031]
This restraining means may be constituted by an arrow-shaped convex portion (not shown) formed on the front end surface of the connecting shaft 4 and an identical concave portion formed on the bottom surface of the concave portion 16 of the magnet key.
[0032]
Alternatively, the front end portion of the connecting shaft may be deformed in cross section (for example, a hexagonal shaft), and the recessed portion 16 may be deformed in the same shape to prevent rotation by engaging these shapes.
[0033]
On the other hand, as shown in FIGS. 3 and 4, a locking means 22 is provided in the main body, and this locking means 22 is provided to the rear of the control panel 4 only at the unlocking angle position of the magnet tumbler lock. The movement is allowed, and the movement of the control panel in the direction of the rotation axis is restricted at other angular positions.
[0034]
Specifically, the locking projections 23 are provided in a radial direction at least at one location (two locations in FIG. 3) on the outer peripheral edge of the control panel. In addition, an arcuate ring portion 24 is formed along the movement trajectory.
[0035]
As shown in FIG. 3, when the control panel 4 is in the unlocked angular position, the portion of the bank portion 24 that aligns with the locking projection is cut away, and the control panel 4 can be moved rearward at this angular position. It has become.
[0036]
The structure of the locking means 22 is not limited to the above-described one, and can be variously modified. For example, a locking pin (not shown) provided on the inner surface of the rear case 3 is provided. ) And an opening that is open to the back surface of the control panel 4 and that is aligned with the locking pin when the control panel is in the unlocked angle position.
[0037]
On the other hand, a claw plate 25 protrudes in the radial direction over a certain angular range on the outer peripheral edge of the control panel 4 at a predetermined angular position.
[0038]
The outer periphery of the claw plate 25 is formed in a bowl shape in cross section, and this hook is engaged with a groove formed at the lower end of a shackle described later from behind.
[0039]
On the other hand, as shown in FIG. 1 to FIG. A shackle 26 made of, for example, zinc die cast is guided in a letter shape so as to be movable in the vertical direction so that the main body portion passes through the straight portion at the lower end portion thereof.
[0040]
As shown in FIGS. 3 and 4, the shackle 26 has a shackle spring 29 as a compression coil spring elastically mounted between a flange portion 27 formed in the middle of the lower end straight portion and the bottom portion of the guide case 28. It is biased upward by the elasticity, in other words, away from the control panel 4.
[0041]
Further, as shown in FIGS. 3 and 4, a groove 31 is formed at the lower end of the shackle 26. Normally, the groove 31 engages with the outer peripheral edge of the claw plate 25 from the front, and the locking shown in the drawing. Keeps the position.
[0042]
In the illustrated embodiment, as shown in FIG. 3, the escape groove 32 formed on the outer surface of the main body part to avoid interference with the shackle 26 in the locked position, and the escape groove to fix the tip of the shackle. Since the locking hole 33 opened in 32 is formed symmetrically with respect to the midline of the main body, it can be locked with the front side facing up, whether the tip of the shackle 26 is left or right. It is.
[0043]
In addition, as shown in FIG. 3, a pair of click grooves 34, 34 are formed at predetermined angular positions on the outer peripheral edge of the control panel 4 with an angular interval of 45 degrees, corresponding to these click grooves. A click ball 35 and a click spring 36 that presses the click ball 35 in the direction of the control panel 4 are disposed in the main body.
[0044]
With this known click device, when the control panel 4 is rotated via the magnet key 13, a click feeling can be obtained at the locked position and the unlocked position, but this click device is not an essential component for the establishment of the present invention. .
[0045]
The padlock according to the present invention configured as described above is gripped by the fingers with the connecting shaft 5 of the control panel and rotated 45 degrees counterclockwise from the angular position shown in FIGS.
[0046]
Then, as shown in FIG. 4, since the magnet tumbler 11 is engaged with the holding hole 12 of the front case, the control panel 4 is locked to the front case 2 of the outer skin via the magnet tumbler 11, and this padlock is locked. It becomes.
[0047]
In the illustrated embodiment, as described above, the control panel is rotated by fingers to lock, but when the control panel 4 is in the unlocked angle position (see FIGS. 1 and 3), the blind hole If a blind hole (not shown) of the same diameter opening inward is formed in the inner surface of the front case 2 aligned with 8, a padlock of the type that requires a magnetic key can be used even when locking.
[0048]
When unlocking, the recess 16 of the magnet key 13 is fitted on the connecting shaft 5 of the control panel, and the arrow-shaped recess 17 and the protrusion 18 are fitted together.
[0049]
Then, as a result of the magnet tumbler 11 of the control panel 4 and the key magnet 19 of the magnet key facing each other with the same magnetic pole, the magnet tumbler 11 moves to the right in FIG. 4 against the elasticity of the tumbler spring 9, and the front case 2 Comes out of the holding hole 12.
[0050]
Then, since the control panel 4 can be rotated, the magnetic key 13 is rotated 45 degrees clockwise to set the arrow to OK.
[0051]
At this time, as shown in FIG. 3, since the locking projection 23 of the control panel is aligned with the notch of the ring portion 24, the control panel 4 is moved to the right in FIG. And the engagement between the nail plate 25 and the shackle 26 is released.
[0052]
Then, the shackle 26 jumps out as shown by a chain line in FIG. 1 by the elasticity of the shackle spring 29, and the padlock is unlocked.
[0053]
When the front end of the shackle 26 is pushed into the outer shell engaging hole 33 (see FIG. 3), the control panel 4 is shown in FIG. 4 by the wedge action generated between the lower end of the shackle 26 and the outer periphery of the claw plate 2. When the groove 31 of the shackle is aligned with the tip of the key portion formed on the outer peripheral edge of the claw plate 25, the claw plate 25 and the shackle 26 are automatically engaged by the elasticity of the push spring 7. This padlock is locked.
[0054]
【The invention's effect】
As is apparent from the above description, the present invention is a simplified shackle that is locked to or released from the main body by the lock and the control panel. Since the locking hole for receiving the free end of the shackle is opened on the outer edge of the main body symmetrically with respect to the median line of the main body, the free end of the shackle is viewed in the left or right direction when viewed from the front. Also has the expected effect of being able to be locked.
[Brief description of the drawings]
FIG. 1 is a front view of a padlock according to an embodiment of the present invention.
FIG. 2 is a rear view thereof.
FIG. 3 is a front view of the padlock with the front case removed.
FIG. 4 is a cross-sectional view of a padlock.
5A and 5B are diagrams showing a magnet key, in which FIG. 5A is a partial cross-sectional side view, and FIG. 5B is a front view.
[Explanation of symbols]
1 outer skin 2 front case 3 rear case 4 control panel 5 connecting shaft 6 rotating shaft 8 blind hole 9 tumbler spring 10 lid plate 11 magnet tumbler 12 holding hole 13 magnet key 19 key magnet 22 locking means 23 locking projection 24 ring dyke Part 25 Claw plate 26 Shackle 31 Groove part 32 Escape groove 33 Locking hole

Claims (2)

And flat body portion, within the main body, while being supported around the imaginary rotation axis passing through the body portion in the thickness direction is rotatably, movably guided thick circle rotation axis A plate-shaped control panel, and a radially projecting portion of the outer peripheral edge of the control panel over a certain angular range and cut by a plane including the rotation axis of the control panel is a bowl-shaped arc shape. through the nail plate having an outer peripheral, the entire shape substantially question mark shape to form a groove for engaging the front towards the periphery and the body portion of the nail plate to the lower end of the question mark, lower end of the outer edge of the body portion And a shackle that is guided so as to be movable in a direction perpendicular to the rotation axis of the control panel and is biased outward in a direction away from the control panel, and at least one of the outer peripheral edges of the control panel in the radial direction The locking protrusion protruding from the When the control panel is in the unlocking angle position by cutting out the portion of the bank that aligns with the locking projection when the control panel is in the unlocking angle position. Only a locking means for allowing the control panel to move rearward and a lock for controlling the rotation of the control panel, and a locking hole for receiving the free end of the shackle on the outer edge of the main body. A padlock characterized by being opened symmetrically. The lock is, the control panel Oite its virtual pivot shaft coaxial to the front, and are integrally protruded connecting shaft projecting to the outside through the body portion front of the virtual in front of the control panel rotation axis along an arc of a predetermined radius centered on a plurality of blind holes formed at predetermined angular intervals, it if at least one magnet tumbler and tumbler accommodated in a blind hole that is selected, At the predetermined angle position of the control panel, the same number of holding holes as the blind holes opened on the front surface of the main body unit aligned with the blind holes of the control panel , and the cover plate covering the front surface part of the main body unit where the holding holes are opened When the recessed part is fitted to the connecting shaft of the control panel, it is aligned with the magnetic tumbler of the control panel with the same magnetic pole. The key magnet to be embedded is embedded, and a predetermined gap is provided between the key magnet and the cover plate. A magnet key to set the depth of the recessed portion so as to maintain, is provided between the connecting shaft of the recessed portion and the control board of the magnet key, and a restraining means for restraining the relative rotation between the coupling shaft and the magnet key When the concave part of the magnet key is fitted to the connecting shaft of the control panel, the magnet tumbler disengages from the holding hole of the main body part by the mutual magnetic repulsive force between the key magnet and the magnet tumbler, and control is performed. It is a magnet tumbler lock that allows the panel to rotate to a predetermined angular position, and presses the magnet key at this angular position to release the engagement between the claw plate of the control panel and the shackle. The padlock according to claim 1, characterized in that

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