JP3235415B2 - Locking device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a lock device for a drawer in a desk or the like, and more particularly to a lock device capable of visually confirming a locked or unlocked state.

[0002]

2. Description of the Related Art Usually, a locking device used in a drawer of a desk or the like only allows the surface of a cylinder head to be seen, so it is visually determined whether the device is locked or unlocked. I can't confirm.

[0003]

SUMMARY OF THE INVENTION In a conventional locking device,
Since it is not possible to confirm whether or not the lock of the drawer of the desk is locked, there is a problem that if the lock is intended to be locked and the lock is forgotten, theft may occur.

Therefore, the present invention enables the user to visually confirm at a glance whether the vehicle is in a locked state or an unlocked state, and the entire assembly can be performed with one touch and easily despite having such a function. It is an object of the present invention to provide a locking device that can be operated at a time.

[0005]

In order to achieve the above object, a cylinder which can be rotated by 180 ° with respect to a lock body is provided.
Head around the keyhole of the cylinder head.
Indirectly or directly provided colored parts colored with two colors
And a case having an opening for exposing the colored portion.
Attach the cover to the lock body and lock or unlock
The colored part rotates with the rotation of the cylinder head at the time.
By turning the cover, you can
The locked or unlocked state can be confirmed by the color of the colored part.
A locking device, wherein the case cover is substantially at the center.
A through hole large enough to insert the tip of the cylinder head
And a cap shape provided with the opening,
At four places from the open end, projectiles project outward
The case cover bullets are fitted
The front side of the lock body is a square flange surface
By providing at four diagonal positions, the case cover
Is fixed to the surface of the lock body .

Here, the surface is colored with two different colors.
The display panel provided with the colored portion by the cylinder head
Is preferably attached to the surface by fitting of unevenness .

Further, a dowel is provided on the back of the display panel,
A recess that can fit into the dowel is provided on the cylinder head surface,
The display panel is fixed to the cylinder head by fitting the dowels and recesses.
More preferably, it is determined .

[0008] It is preferable that a set of fitting pieces of the cylinder head that can be fitted and the fixing recesses on the surface of the lock body are set to be larger than those of the others.

[0009]

As described above, according to the locking device of the first aspect of the present invention, the cylinder head is rotated using the key so that different colors appear at the time of locking and unlocking, so that the locking is visually performed. State or unlocked state. For example, to lock a desk drawer
Usually, when unlocked, the case cover
The color of the colored portion seen from the opening is a color such as green. So
Then insert the key into the keyhole and
Turn the lock head 180 degrees to lock the lock bar in the drawer
Is engaged with the concave portion or the locking piece provided in the
The colored part rotates, and the colored part of another color such as red covers the case cover.
Appears in the opening of the key, confirming that it is locked.
You. Furthermore, the diagonal position on the surface of the square flange of the lock body
The case cover was provided in the fixing recesses provided in four places
Assembling by forcing and fixing the bullets
Can be.

According to the locking device of the second aspect ,
The display board is attached to the
Can stand. Then, the case fixed to the lock body
With the rotation of the cylinder head
The display board rotates.

According to the locking device of the third aspect, the recess on the surface of the cylinder head and the dowel of the display plate can be forcibly fitted and fitted and fixed to the tip of the cylinder head.

According to the fourth aspect of the present invention, the set of engageable cylinder head bullets and the locking recesses on the surface of the lock body are set larger than those of the others, so that positioning is easy. It can be carried out.

[0013]

BRIEF DESCRIPTION OF THE DRAWINGS FIG.

FIG. 1 is a perspective view of a desk provided with a locking device according to a first embodiment of the present invention. The locking device A is shown in FIG.
As shown in FIG. 1, the lock body 5 includes a lock body 1, a cylinder head 2, a display panel 3, and a case cover 4. By engaging and disengaging the provided recess or locking piece, the drawer 7 of the desk 6 can be locked and unlocked.

First, the cylinder head 2 having the keyhole 8 on the front surface and the locking rod 5 on the rear surface is made to protrude from the front and rear of the lock body 1, and the key 9 is inserted into the keyhole 8 and the lock body 1 is inserted into the lock body 1. 180 cylinder head
By rotating the lock lever 5 at the same time, the locking rod 5 can be rotated at the same time. Further, at the periphery of the keyhole 8 on the surface of the flange portion 2a of the cylinder head 2, recesses 10 into which projections of the display plate 3 described later can be forcibly fitted are provided at equal intervals at four locations. In the cylinder head 2 in the illustrated example, one of the four recesses 10 is set large so that positioning is easy. As shown in FIG. 2, the locking rod 5 is formed by bending one side of a long plate and forming a guide groove 12 in the folded piece 11. Then, locking projections 13 are provided at the corners of the lock body 1, the locking rod 5 is positioned between these locking projections 13,... By rotating the cylinder head 2 with the pin 15 erected on the back of the cylinder head 2 positioned in the guide groove 12 of the locking rod 5,
The locking rod 5 can be freely moved in and out in the horizontal direction.

As shown in FIG. 2, the display panel 3 is provided with a through-hole 16 large enough to receive the tip of the cylinder head 2 at a substantially central portion of the disk to form a display panel main body 17, A hemispherical dowel 18 is provided at four separate places on the back of the display panel main body 17 so that the front surface of the cylinder head 2 can be covered, and 1/4 or 1/2 of the surface of the display panel main body 17 is colored red. At the same time, the remaining portion is colored green to form a red colored portion 19a and a green colored portion 19b. In the display panel 3 in the illustrated example, one of the four dowels 18 is set to be large in accordance with the concave portion 10 of the cylinder head 2.
Further, it is sufficient that each of the coloring portions 19a and 19b of the display panel 3 is colored only at a necessary portion in accordance with the rotation of the cylinder head 2 by 180 °.

As shown in FIGS. 2 and 5, the case cover 4 has the display plate 3 attached to the surface of the cylinder head 2 and
With the cylinder head 2 attached to the lock body 1, the cap body has a cap shape that can be covered, and a through-hole 20 large enough to allow the tip of the cylinder head 2 to be inserted is formed substantially in the center. L-shaped resilient pieces 22 are provided at four locations at equal intervals from the end so as to protrude outward, and further cut out inward from the open end of the through hole 20 to form
An opening 23 is provided over 0 °. The colored portion 19 of the display panel 3 is covered so that the colored portion 19 of the display panel 3 can be seen from the opening 23 of the case cover 4.
By rotating by 0 °, the locked state can be shown when the red colored portion 19a is visible, and the unlocked state can be shown when the green colored portion 19b is visible. In the case cover 4 in the illustrated example, one of the four pieces 22 is set large so that positioning is easy. still,
The above-described opening 23 is formed by notching inward from the opening end of the through hole 16, but may naturally be provided in the middle of the case cover 4.

Further, as shown in FIG. 2, the surface of the square flange 1a of the lock body 1
Fixing portions 24 for fitting the 22 are provided at four diagonal positions. That is, as shown in FIGS. 5 and 6, the fixing portion 24 is provided with a recess 25, and further provided with a dent so as to have a step at a substantially central portion of the recess 25, so that the fixing recess 27 is provided. As shown in FIG. 5, a retaining projection 28 is provided at a corner in the middle of each fixing recess 27 so that it can be forcibly fitted. And the bullets of the case cover 4
When the 22 is pushed into the fixing recess 27 beyond the retaining protrusion 28, the bullet 22 is held by the retaining protrusion 28 as shown in FIG. Can be prevented.

When assembling the locking device A, the recesses 10 on the surface of the cylinder head 2 and the dowels 18 on the display plate 3 are forcibly fitted, and the display plate 3 is fitted and fixed to the tip of the cylinder head 2. Further, the case cover 4 is externally fitted over the display plate 3, and a fixing recess 27 provided in the lock body 1 is formed.
Then, the entire piece can be assembled by forcibly fitting and fixing the elastic piece 22 provided on the case cover 4.

Next, a case where the desk 6 incorporating the locking device A is used will be described. Usually, as shown in FIG.
The lock device A of the drawer 7 of the desk 6 is unlocked, and the color of the display panel 3 seen from the opening 23 of the case cover 4 is green. Then insert the key 9 into the keyhole 8,
When the cylinder head 2 is rotated by 180 ° with respect to the lock body 1, the locking rod 5 protrudes as shown by a two-dot chain line in FIG. 3 and is engaged with a concave portion or locking piece provided in the drawer 7. At the same time, the display panel 3 rotates and the red colored portion 19
a appears in the opening 23 of the case cover 4 and it can be confirmed that the lock state is established.

As described above, according to the locking device A of the present embodiment, whether the locked state or the unlocked state is visually determined based on the color of the display panel 3 appearing at the opening 23 of the case cover 4. Can be checked at a glance, so that theft due to forgetting to lock can be prevented. In addition, despite having such a function, the recess 10 on the surface of the cylinder head 2
The display panel 3 is fitted to the tip of the cylinder head 2 by forcibly fitting the dowels 18... Of the display panel 3 with the case cover 4 from the top of the display panel 3. Since the elastic piece 22 provided on the case cover 4 is merely forcibly fitted into the provided fixing recess 27, the assembling of the locking device A can be performed with one touch and easily.

In the above-described example, the display plate 3 attached to the cylinder head 2 is rotatable by operating the key 9 with respect to the case cover 4 fixed to the lock body 1. It is also possible to make it rotatable. That is, as shown in FIG. 7, the display plate 3 is fixed to the drawer 7 or the lock body 1, the case cover 4 is attached to the cylinder head 2, and the display plate 3 provided on the surface of the drawer 7 is attached to the cylinder head 2. By rotating the provided case cover 4, the opening 23 of the case cover 4 is opened.
You can also change the color seen from.

Further, the locking device A shown in FIG. 8 and FIG.
This is a second embodiment in which another locking rod 5 is used. Specifically, a cap member 29 that can be fitted to the outside of the cylinder head 2 is fittable. A locking recess 30 is provided in which the second pin 15 can be fitted, and the bar-shaped locking rod 5 is eccentrically provided on the outer surface and stands upright in the axial direction. That is, as shown in FIG. 9, the locking rod 5 eccentrically erected with the rotation of the cylinder head 2.
Can be locked and unlocked by displacing.

In the above example, the cylinder head 2
The concave portion 10 is provided on the surface of the flange portion 2a of the
However, if the mounting of the unevenness is reversed or the number of the unevenness is one or more, it can be appropriately selected. The same applies to the fixing recess 27 of the lock body 1 and the resilient piece 22 of the case cover 4. Therefore, the mounting of the unevenness may be reversed or the number of the unevenness may be one or more. Further, in the above-described example, the locking device A is used for the drawer 7 of the desk 6, but it can be applied to a case where a drawer of a cabinet or other drawer of furniture is locked.

Finally, a locking device A according to a third embodiment will be described with reference to FIG.

As shown in FIG. 10, a locking device A according to the third embodiment comprises a lock body 1, a cylinder head 2, a case cover 4, and the like. The same parts are used for the locking device A.
Then, the cylinder head 2 colors the quarter or half of the periphery of the keyhole 8 on the surface of the flange portion 2a to red, and the remaining portion to green, so that the red colored portion 19a and the green colored portion 19b are colored. Is formed.

Then, by inserting the key 9 into the keyhole 8 and rotating the cylinder head 2 with respect to the lock body 1, the colored portion 19a or the colored portion 19b colored around the surface of the cylinder head 2 is colored. It can be seen from the opening 23 of the case cover 4 and the locked or unlocked state can be confirmed by the color of the colored portion 19.

As described above, according to the locking device A of the third embodiment, since the colored portion 19 is formed by directly coloring the periphery of the surface of the cylinder head 2, as in the locking device A of the first embodiment. The display plate 3 is not required, and the cost can be reduced by reducing the number of parts.

[0029]

According to the locking device according to the first aspect of the present invention, the cylinder head is rotated using the key, and appears at the opening of the case cover during locking and unlocking .
Lock or unlocked, depending on the color of the colored part
It is possible to check at a glance whether there is any , and it is possible to prevent theft due to forgetting to lock. Also, lock body
Are provided at four diagonal positions on the surface of the square flange in the front view
Forcibly fit the bullet provided on the case cover into the fixing recess
Because it can be fixed, assembly can be done with one touch.
One can easily do it.

According to the locking device of the second aspect , the syringe
Color the surface with two different colors.
The display panel provided with the colored portion is removed by fitting the unevenness.
It can be assembled by attaching
Can be easily and easily assembled with one touch
You.

According to the locking device of the third aspect, the recess on the surface of the cylinder head and the dowel of the display plate can be forcibly fitted and fitted to and fixed to the tip of the cylinder head. be able to.

According to the locking device of the fourth aspect, the resilient piece of one set of the cylinder head which can be fitted and the fixing recess on the surface of the lock body are set to be larger than those of the other, so that positioning can be easily performed. It can be carried out.

[Brief description of the drawings]

FIG. 1 is a perspective view of a desk to which a locking device according to a first embodiment of the present invention is attached.

FIG. 2 is an exploded perspective view of the locking device according to the first embodiment.

FIG. 3 is a front view of the locking device.

FIG. 4 is a longitudinal sectional view showing an attached state of the locking device.

FIG. 5 is an explanatory view showing attachment of a cover case to the lock body.

FIG. 6 is an enlarged sectional view showing a main part in a state where a cover case is attached to the lock body.

FIG. 7 is a vertical cross-sectional view showing an attached state of another locking device.

FIG. 8 is an exploded perspective view of a locking device according to a second embodiment.

FIG. 9 is a longitudinal sectional view showing an attached state of the locking device of the second embodiment.

FIG. 10 is an exploded perspective view of a locking device according to a third embodiment.

[Explanation of symbols]

A Locking device 1 Lock body 2 Cylinder head 3 Display board 4 Case cover 5 Locking rod 6 Desk 7 Drawer 8 Key hole 9 Key 10 Concave part 11 Folding piece 12 Guide groove 13 Locking protrusion 14 Fixed cover 15 Pin 16 Through hole 17 Display plate Main body 18 Dowel 19 Colored part 20 Through hole 21 Side wall 22 Bullet piece 23 Opening 24 Fixed part 25 Concave 27 Fixed concave 28 Retaining protrusion 29 Cap member 30 Fitting concave

──────────────────────────────────────────────────続 き Continued on the front page (58) Field surveyed (Int.Cl. ⁷ , DB name) E05B 41/00 E05B 65/44

Claims (4)

(57) [Claims] A lock which can be rotated by 180 ° with respect to a lock body.
A cylinder head is provided, and around the keyhole of the cylinder head.
Indirectly or directly apply colored parts colored with two different colors
Along with providing an opening to expose the colored portion,
Attach the case cover to the lock body,
With the rotation of the cylinder head during the unlocking operation
When the colored part rotates, the opening of the case cover
The locked or unlocked state can be confirmed by the color of the colored part
The locking device, wherein the case cover,
Large enough to insert the tip of the cylinder head at approximately the center
It is a cap shape provided with a through hole and the opening,
Protrudes outward at four places from the open end of the cap
The bullets of this case cover
The lock recessed part into which the piece can be fitted is square in front view of the lock body.
By providing it at four diagonal positions on the flange surface of
A lock device wherein a case cover is fixed to a surface of a lock body . 2. The method according to claim 2, wherein the surface is colored with two different colors.
Place the display panel provided with the colored portion on the surface of the cylinder head.
2. The locking device according to claim 1, wherein the locking device is attached to the boss by fitting unevenness . 3. A dowel is provided on a back surface of the display panel, and the dowel is provided.
Provide a recess on the cylinder head surface that can fit
The display panel is fixed to the cylinder head by fitting the
The locking device according to claim 2 . 4. A set of matable cylinder head bullets.
The lock recess on the surface of the lock and the lock body is larger than the others.
The locking device according to claim 1 .