JPH0925751A - Locking device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To assemble a locking device capable of visually confirming the locked state with the color appearing at an opening section in one step by force- coupling a display plate partitioned into two colors to the flange section of a cylinder head, and coupling a case cover having the opening section in the front of a lock main body. SOLUTION: A display plate 3 provided with a red color section 19a and a green color section 19b is force-coupled around a keyhole 8 on the surface of the flange section 2a of a cylinder head 2 assembled to a key main body 1. A case cover 4 having an opening section 23 covering the display plate 3 and exposing part of the color section 19 of the display plate 3 is coupled and fixed on the surface of the key main body 1. When a key 9 is inserted into the keyhole 8 and the cylinder head 2 is rotated by 180 deg. for locking or unlocking, the display plate 3 is concurrently rotated, the red color section 19 a appears at the opening section 23 at the time of locking, the green color section 19b appears at the time of unlocking, and the locked/unlocked state can be visually confirmed.

Description

Detailed Description of the Invention

[0001]

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

[0002]

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

[0003]

In the conventional locking device,
Since it is not possible to confirm whether or not the drawer of the desk is locked, there is a problem that there is a risk of theft or the like especially when the person intends to lock the table and forgets to lock it.

Therefore, according to the present invention, it is possible to visually confirm at a glance whether it is in the locked state or the unlocked state, and despite having such a function, the whole assembly can be done with one touch and easily. The present invention intends to provide a locking device that can be used for the above.

[0005]

In order to achieve the above object, a cylinder head rotatable by 180 ° is provided with respect to the lock body, and different colors appear when locking and unlocking by rotating the cylinder head. It is characterized by having been made to do.

A case cover having a cylinder head rotatable by 180 ° with respect to the lock body and having a display plate whose surface is colored with two different colors and an opening for exposing a part of the surface of the display plate Are sequentially attached, and by rotating the display plate or the case cover with the rotation of the cylinder head, it is possible to confirm the locked or unlocked state by the color of the display plate visible from the opening of the case cover. Those are preferable.

Further, a case cover having two kinds of colored display plates is fixed to the surface of the cylinder head by fitting of concavities and convexities, and has an opening for covering the display plate and exposing the colored portion of the display plate. It is more preferable that the above is fixed to the surface of the lock body by fitting of concavities and convexities.

Further, a cylinder head colored around the keyhole in two different colors is provided so as to be rotatable by 180 ° with respect to the lock body, and a case cover having an opening for exposing the coloring of the cylinder head is provided on the outer cover. Then, the lock or unlock state may be confirmed by attaching to the lock body and rotating the cylinder head so that the locked or unlocked state can be confirmed by the color of the colored portion seen from the opening of the case cover.

[0009]

As described above, according to the lock device of the first aspect of the present invention, the cylinder head is rotated by using the key to cause different colors to appear at the time of locking and unlocking, thereby visually locking It can be confirmed that it is in the unlocked state or the unlocked state.

According to the locking device of the second aspect, for example, it is used for locking a drawer of a desk, and in a normally unlocked state, the color of the display plate seen from the opening of the case cover is green or the like. Is the color. Then, when the key is inserted into the key hole and the cylinder head is rotated 180 ° with respect to the lock body, the locking rod is engaged with the recess or the locking piece provided in the drawer, and the display plate or the case cover is rotated. It can be confirmed that a colored portion of another color such as red appears in the opening of the case cover and is in a locked state.

According to the third aspect of the present invention, the lock plate is fixed to the surface of the cylinder head by fitting the concave and convex portions, and the display plate is fixed to the surface of the lock body by the concave and convex portions to assemble the entire locking device. You can Then, the display plate rotates with the rotation of the cylinder head with respect to the case cover fixed to the lock body.

According to the locking device of the fourth aspect, by inserting the key into the key hole and rotating the cylinder head, the colored portion around the surface of the cylinder head can be seen from the opening of the case cover, and the colored portion can be colored. You can check the locked or unlocked state by the color of the part.

[0013]

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 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. As shown in FIG. 2, the locking device A is composed of a lock body 1, a cylinder head 2, a display plate 3 and a case cover 4, and the cylinder head 2
Although not shown in particular, for example, a desk 6 with a lock rod 5 interlocked with
The drawer 7 of the desk 6 can be locked and unlocked by engaging and disengaging the recess or the locking piece provided inside the drawer 7.

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 to attach the lock body 1 to the lock body 1. For cylinder head 2 180
By rotating the lock rod 5, the locking rod 5 can be rotated at the same time. Further, around the keyhole 8 on the surface of the flange portion 2a of the cylinder head 2, there are provided recesses 10 at which four protrusions, which will be described later, can be force-fitted, at equal intervals. In the cylinder head 2 of the illustrated example, one of the four recesses 10 is set to be large so as to facilitate positioning. Further, as shown in FIG. 2, the locking rod 5 is formed by bending one side of an elongated plate body and forming a guide groove 12 in the folding 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 standing on the rear surface of the cylinder head 2 positioned in the guide groove 12 of the locking rod 5,
The locking rod 5 is freely retractable in the lateral direction.

As shown in FIG. 2, the display plate 3 has a through hole 16 having a size such that the tip end of the cylinder head 2 can be inserted in the substantially central portion of the disk to form a display plate body 17. The front surface of the cylinder head 2 can be covered, the hemispherical dowels 18 are provided at four locations on the back surface of the display plate body 17, and the 1/4 or 1/2 of the surface of the display plate body 17 is colored red. In addition, the remainder is colored green to form a red colored portion 19a and a green colored portion 19b. In the display board 3 of the illustrated example, one of the four dowels 18 is set to a large size in accordance with the recess 10 of the cylinder head 2.
Further, the respective colored portions 19a and 19b of the display plate 3 need only be colored only in the necessary portions in accordance with the rotation of the cylinder head 2 by 180 °.

As shown in FIGS. 2 and 5, the case cover 4 has a cap shape capable of being covered with the display plate 3 attached to the surface of the cylinder head 2, and the tip of the cylinder head 2 is located at substantially the center. Through hole of a size that can be inserted
20 are bored, L-shaped bullet pieces 22 are provided at four positions at equal intervals from the end of the side wall 21 so as to project outward, and further from the opening end of the through hole 20 toward the inside. The opening 23 is provided over 90 ° by notching. By covering the colored portion 19 of the display plate 3 through the opening 23 of the case cover 4 and rotating the case cover 4 by 180 ° with respect to the display plate 3, the red colored portion 19a can be seen. The locked state can be shown when the lock is on, and the unlocked state can be shown when the green colored portion 19b is visible. In the case cover 4 of the illustrated example, one of the four ammunition pieces 22 is set to be large so as to facilitate positioning. Although the above-mentioned opening 23 is formed by notching inward from the opening end of the through hole 16, it may of course be provided in the middle of the case cover 4.

Further, as shown in FIG. 2, the collar portion 1a of the lock body 1 is provided with fixing portions 24 for fitting the bullet pieces 22 of the case cover 4 at four places. That is, as shown in FIGS. 5 and 6, the fixing portion 24 is provided with a concave portion 25, and by further providing a dent so as to have a stepped portion at a substantially central portion of the concave portion 25, the fixing concave portion 27 is formed. As shown in FIG. 5, the retaining projections 28 are provided at the corners in the middle of the respective fixing recesses 27 so that they can be fitted by force. And
When the bullet piece 22 of the case cover 4 is pushed into the fixed recess 27 beyond the retaining projection 28, the bullet piece 22 is held by the retaining projection 28 as shown in FIG. 6, and the bullet piece 22 is fixed. It is possible to prevent the recess 27 from coming off.

When assembling the locking device A, the recess 10 on the surface of the cylinder head 2 and the dowel 18 of the display plate 3 are forcedly fitted to each other, and the display plate 3 is fitted and fixed to the tip end of the cylinder head 2. Further, the case cover 4 is fitted on the display plate 3 and the fixing recess 27 is provided in the lock body 1.
In addition, the entire piece can be assembled by forcibly fitting and fixing the bullet piece 22 provided on the case cover 4.

Next, the case of using the desk 6 incorporating the locking device A will be described. Usually, as shown in FIG.
The locking device A of the drawer 7 of the desk 6 is unlocked, and the color of the display plate 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 180 ° with respect to the lock body 1, the locking rod 5 projects as shown by the chain double-dashed line in FIG. 3 and engages with a recess or a locking piece provided in the drawer 7. At the same time, the display board 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 it is locked.

As described above, according to the locking device A of this embodiment, it is possible to visually check the locked state or the unlocked state from the color of the display plate 3 appearing in the opening 23 of the case cover 4. Since it can be checked at a glance, it is possible to prevent theft due to forgetting to lock. Moreover, despite having such a function, the concave portion 10 on the surface of the cylinder head 2
.. and the dowel 18 of the display plate 3 are forcibly fitted to fit the display plate 3 to the tip of the cylinder head 2, and the case cover 4 is fitted onto the display plate 3 from above the lock body 1 Since the bullet piece 22 provided on the case cover 4 is simply fitted into the provided fixed concave portion 27, the locking device A can be assembled with one touch and easily.

Further, in the above-mentioned 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, but the case cover 4 is It can also be 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 cylinder head 2 is attached to the display plate 3 provided on the surface of the drawer 7. By rotating the case cover 4 provided, 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.
The second embodiment uses another locking rod 5. Specifically, a cap member 29 that can be externally fitted can be fitted to the rear portion of the cylinder head 2, and the cylinder head is provided on the inner surface of the cap member 29. A fitting recess 30 into which the second pin 15 can be fitted is provided, and a rod-shaped locking rod 5 is eccentrically provided on the outer surface and is erected in the axial direction. That is, as shown in FIG. 9, with the rotation of the cylinder head 2, the locking rod 5 eccentrically provided upright.
It can be locked and unlocked by displacing.

In the above example, the cylinder head 2
A recess 10 is provided on the surface of the collar portion 2a of the and the dowel 18
However, it can be appropriately selected if the concavo-convex attachment is reversed or the number of concavo-convex parts is one or more. Therefore, the attachment of the irregularities may be reversed, and the number of the irregularities may be one set or more. Furthermore, in the above-mentioned example, the locking device A is used for the drawer 7 of the desk 6, but it can also be applied to the case of locking the drawer of a cabinet or other furniture.

Finally, the locking device A of the third embodiment will be described with reference to FIG. The locking device A of the third embodiment is
As shown in FIG. 10, the lock body 1, the cylinder head 2,
It is composed of a case cover 4 and the like, and the same parts of the locking device A of the first embodiment are used except for the cylinder head 2. Then, the cylinder head 2 has a collar portion 2a.
1/4 or 1/2 of the periphery of the keyhole 8 on the surface is colored red and the rest is colored green to form a red colored portion 19a and a green colored portion 19b.

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 colored in red or the colored portion 19b colored in green around the surface of the cylinder head 2 is formed. 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 cost can be reduced by eliminating the display plate 3 and reducing the number of parts.

[0027]

According to the locking device of the first aspect of the present invention, the key is used to rotate the cylinder head so that different colors appear at the time of locking and unlocking, thereby visually confirming the locked state. Alternatively, since it can be confirmed that the lock is unlocked, theft due to forgetting to lock can be prevented.

According to the second aspect of the present invention, the color of the display plate appearing in the opening of the case cover in accordance with the rotation of the cylinder head makes it possible to visually check whether it is in the locked state or the unlocked state. You can check at a glance.

According to the third aspect of the present invention, the entire locking device is assembled by fixing the display plate on the surface of the cylinder head by fitting the concave and convex portions and fixing the display plate on the surface of the lock body by fitting the concave and convex portions. Therefore, the locking device can be assembled with one touch and easily.

According to the locking device of the fourth aspect, since the periphery of the cylinder head surface is colored directly, the cost can be reduced by reducing the number of parts.

[Brief description of 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 vertical cross-sectional view showing a mounting state of the locking device.

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

FIG. 6 is an enlarged cross-sectional view showing a main part with a cover case attached to the lock body.

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

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

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

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

[Explanation of symbols]

A Locking device 1 Lock body 2 Cylinder head 3 Display plate 4 Case cover 5 Lock rod 6 Desk 7 Drawer 8 Key hole 9 Key 10 Recess 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 part 24 Fixed part 25 Recessed part 27 Fixed recessed part 28 Detachment projection part 29 Cap member 30 Fitted recess

Claims (4)

[Claims] 1. A locking device, characterized in that a cylinder head rotatable by 180 ° is provided with respect to a lock body, and different colors are made to appear during locking and unlocking by rotating the cylinder head. 2. A case cover provided with a cylinder head rotatable 180 ° with respect to a lock body, having a display plate whose surface is colored with two different colors, and an opening for exposing a part of the surface of the display plate. Are sequentially attached, and by rotating the display plate or the case cover with the rotation of the cylinder head, it is possible to confirm the locked or unlocked state by the color of the display plate visible from the opening of the case cover. Locking device. 3. A case cover having two colored display plates fixed to the surface of a cylinder head by fitting a concavo-convex, and having an opening for covering the display plate and exposing a colored portion of the display plate. The locking device according to claim 2, wherein the lock is fixed to the surface of the lock body by fitting of concave and convex portions. 4. A cylinder head colored around the keyhole in two different colors is provided so as to be rotatable by 180 ° with respect to the lock body, and a case cover having an opening for exposing the coloring of the cylinder head is provided as an outer cover. Then, by attaching it to the lock body and rotating the cylinder head,
A locking device characterized in that a locked or unlocked state can be confirmed by a color of a colored portion seen from an opening of a case cover.