JP4168096B2 - padlock - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a padlock, and more particularly to a padlock that has a transparent outer skin, a well-understood inner structure and an operating principle of the lock, and a so-called fashionable appearance that has a crisp feeling.
[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]
Padlocks as locks have been in practical use for many years, and technical improvements to be made have been accumulated, so that there are no technical problems to be urgently improved at present.
[0004]
An object of the present invention is to provide a novel padlock that is lightweight, excellent in so-called fashionability, and can be carried as a stylish accessory.
[0005]
[Means for Solving the Problems]
In order to achieve the above object, the present invention is supported by a flat main body having a transparent outer shell and a rotation shaft that penetrates the main body in the thickness direction in the main body so as to be rotatable. And a control panel that is guided so as to be movable in the direction of the rotation axis, and a connecting shaft that protrudes integrally with the front surface of the control panel along the rotation axis and protrudes outside through the main body. A plurality of blind holes formed in a fixed development pattern on the front surface of the control panel, at least one magnet tumbler and tumbler spring housed in the selected blind hole, and at a predetermined angular position of the control panel, The same number of blind holes as the blind holes opened in the outer skin of the main unit that align with the blind holes in the control panel, a transparent cover plate covering the front part of the main unit where the holding holes are opened, and the connecting shaft of the control panel Forms a recessed part that fits with the tip, and fits this recessed part with the connecting shaft of the control panel And a magnet key that embeds a key magnet that aligns with the magnet tumbler of the control panel with the same magnetic pole and sets the depth of the recess so as to maintain a predetermined gap between the key magnet and the lid plate. A first restraining means for restraining relative rotation between the magnet key and the connecting shaft provided between the concave portion of the magnet key and the connecting shaft of the control panel, and to the rear thereof only at a predetermined angular position of the control panel. And a second restraining means for restraining the movement of the control panel in the direction of the rotational axis at other angular positions, and a radial projection over a certain angle on the outer peripheral edge of the control panel. What is the shape of the nail plate with a bowl-shaped arcuate outer periphery and the overall shape? That in the shape of a letter? A groove that engages with the outer periphery of the claw plate is formed at the lower end of the character, and the lower end penetrates the outer periphery of the main body to be guided so as to be movable in a direction perpendicular to the rotation axis of the control panel. And a shackle biased outward in a direction away from the magnet, and when the concave portion of the magnet key is fitted to the connecting shaft of the control panel, the magnet is caused by the mutual magnetic repulsion between the key magnet and the magnet tumbler. The tumbler disengages from the holding hole of the main body, allows the control panel to rotate to a predetermined angular position, and pushes the magnet key at this angular position, thereby controlling the claw plate and shackle of the control panel. It is characterized in that the engagement is released.
[0006]
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.
[0007]
The outer skin 1 is formed by integrally joining a transparent front case 2 and rear case 3 made of, for example, synthetic resin by housing or adhering the constituent members therein.
[0008]
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.
[0009]
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.
[0010]
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.
[0011]
It should be noted that this padlock can be used as a kind of message transmission device by the display of OK and NG.
[0012]
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.
[0013]
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.
[0014]
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.
[0015]
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.
[0016]
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.
[0017]
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.
[0018]
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 (see FIGS. 1 and 4) 12 and 12 having the same number as these blind holes are opened.
[0019]
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.
[0020]
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 transparent cover plate 10 covering the holding hole opening of the front case 2 is mounted by a bonding means such as adhesion or fitting.
[0021]
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.
[0022]
That is, the magnet key 13 has a shape in which a ring-shaped knob 15 is integrally coupled to a transparent synthetic resin thick plate-shaped main body portion 14, and the front end portion of the connecting shaft 5 of the control panel 4 is formed on the front surface thereof. The recessed part 16 which fits is formed.
[0023]
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.
[0024]
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.
[0025]
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.
[0026]
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.
[0027]
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 first restraining means for restraining the relative rotation of the connecting shaft 5 and the magnet key 13. To do.
[0028]
The first restraining means may be composed of 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.
[0029]
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.
[0030]
On the other hand, as shown in FIGS. 3 and 4, second restraining means 22 is provided in the main body, and this second restraining means 22 is located behind the control panel 4 only at the unlocking angle position of the magnet tumbler lock. The movement of the control panel is restricted at other angular positions.
[0031]
Specifically, the locking projections 23 are provided in a radial direction at least at one location (two locations in FIG. 3) on the outer circumference of the control panel. In addition, an arcuate ring portion 24 is formed along the movement trajectory.
[0032]
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.
[0033]
The configuration of the second restraining means 22 is not limited to the above-described one, and various modifications can be made. For example, a locking pin (not shown) provided on the inner surface of the rear case 3 is provided. 2) and an opening that opens to the back surface of the control panel 4 and aligns with the locking pin when the control panel is at the unlocking angle position.
[0034]
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.
[0035]
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.
[0036]
On the other hand, as shown in FIG. 1 to FIG. In this form, a shackle 26 made of, for example, zinc die cast is guided 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.
[0037]
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.
[0038]
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.
[0039]
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.
[0040]
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.
[0041]
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. .
[0042]
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.
[0043]
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.
[0044]
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.
[0045]
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.
[0046]
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.
[0047]
Then, since the control panel 4 can be rotated, the magnetic key 13 is rotated 45 degrees clockwise to set the arrow to OK.
[0048]
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.
[0049]
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.
[0050]
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.
[0051]
【The invention's effect】
As is clear from the above description, since the outer shell is made of a transparent material, the operation of the magnetic tumbler lock and the operation of the padlock such as the disengagement of the shackle and the control panel can be seen. You can make it an accessory.
[0052]
In addition, since the magnet tumbler and tumbler spring can be taken in and out with the cover plate removed, the blind hole for storing the magnet tumbler and the direction of the magnetic flux of the magnet tumbler are selected by the purchaser of this padlock, There are various effects such as being able to focus on the structure of the lock.
[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 second restraining means 23 locking projection 24 ring Embankment 25 Claw plate 26 Shackle 31 Groove

Claims (1)

A flat main body having a transparent outer skin, and within the main body, are rotatably supported around a rotation shaft that penetrates the main body in the thickness direction, and are guided to be movable in the rotation axis direction. A control panel, a connecting shaft that protrudes integrally on the front surface of the control panel along the pivot axis, projects through the main body, and protrudes to the outside, and is formed on the front surface of the control panel with a fixed development pattern. A plurality of blind holes formed, at least one magnet tumbler and tumbler spring housed in the selected blind hole, and an outer skin of the main body aligned with the blind holes of the control panel at a predetermined angular position of the control panel Forming the same number of holding holes as the blind holes opened in the top, a transparent cover plate covering the front part of the main body part in which the holding holes are opened, and a recessed part to be fitted to the tip of the connecting shaft of the control panel, When this recess is fitted to the connecting shaft of the control panel, it is the same as the magnet tumbler of the control panel. A key magnet that embeds a key magnet that is aligned with the pole and has a depth of the recessed portion set so as to maintain a predetermined gap between the key magnet and the cover plate, and the recessed portion of the magnet key and the control panel A first restraining means which is provided between the connecting shafts and restricts relative rotation between the magnet key and the connecting shaft; and allows the control panel to move backward only at a predetermined angular position; A second restraining means for restraining the movement of the control panel in the rotational axis direction, and a nail plate having a circular arc-shaped outer periphery projecting in a radial direction over a certain angle at an outer peripheral edge of the control panel And the overall shape is abbreviated? That in the shape of a letter? A groove that engages with the outer periphery of the claw plate is formed at the lower end of the character, and the lower end penetrates the outer periphery of the main body to be guided so as to be movable in a direction perpendicular to the rotation axis of the control panel. And a shackle that is biased outward in a direction away from the magnet, and when the recess of the magnet key is fitted to the connecting shaft of the control panel, the magnet is caused by the mutual magnetic repulsion between the key magnet and the magnet tumbler. The tumbler disengages from the holding hole of the main body, allows the control panel to rotate to a predetermined angular position, and pushes the magnet key at this angular position, thereby controlling the claw plate and shackle of the control panel. A padlock characterized by releasing the engagement.

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