JP3945850B2 - Lock with open / close indication mechanism - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a lock with an opening / closing display mechanism having a large display portion so that a user can visually confirm that a key is forgotten to be locked, which can be widely used for furniture such as a desk, cabinet, and storage, and a door of a building.
[0002]
[Prior art]
As a conventional technique, a cylindrical lock body having a lock fixing means biased inward, and when the unevenness of the inserted key and the lock fixing means are aligned, the lock is unlocked and placed in the lock body. A rotating body having a keyhole into which the rotating key can be inserted, a locking position where the rotating body stops in the locked state, and an unlocked position where the rotating body stops in the unlocked state. Correspondingly provided permanent magnets having different polarities, and permanent magnets that are visibly arranged on the front surface of the lock body and that are reversed according to the polarity of the permanent magnets and display corresponding to locking and unlocking There is a lock (see Japanese Patent Application Laid-Open No. 7-259398) having a display means having a corresponding magnetism.
[0003]
Also, when the cylindrical lock body having the lock fixing means which is the outer cylinder, which is the prior application of the applicant of the present application, and the unevenness of the inserted key being the inner cylinder and the lock fixing means are aligned, the lock is unlocked. In the existing lock consisting of a rotary body having a key hole into which the key that rotates in the lock body can be inserted, the rotary body that is the inner cylinder has a part of the collar portion that engages with the lock body. The lock body is provided with a portion that engages with the collar portion of the rotating body at one end so as to correspond to the portion of the display window that is partly cut out of the collar portion of the rotating body. A display unit that can be discriminated between open and closed is provided, and an internal cylinder stopper for restricting rotation is formed on the opposite side of the display window on the back surface of the collar of the rotating body so as to relate to this display window. Locking with an open / close display mechanism in which an outer cylinder stopper that restricts rotation so as to collide with the inner cylinder stopper of the rotating body is formed in the inlay part (Japanese Patent Application No. 8) Reference) is present the No. 297,423.
[0004]
[Problems to be solved by the invention]
The prior art described above has a special structure in order to reduce the size of the display means, and is disposed so as to be visible on the front surface of the lock body and the permanent magnets having different polarities. There is disclosed a display unit having magnetism corresponding to a permanent magnet that performs a display corresponding to locking and unlocking by reversing according to the above.
[0005]
In addition, when the cylindrical lock body having the lock fixing means that is an existing cylinder, which is an existing conventionally known lock, and the concave and convex portions of the inserted key that is the inner cylinder are aligned with the lock fixing means, the unlocking is performed. And a part of the collar part of the rotary body of the existing lock part is cut out, and the part of the collar part of the rotary body is partly cut out. There is disclosed a lock with an opening / closing display mechanism provided with a display portion capable of determining whether the lock body is open or closed so as to correspond to a lacking display window portion.
[0006]
However, in the above-described prior art, each member of the lock must be manufactured completely newly, and a permanent magnet must be adopted as the display means, which is difficult to manufacture, resulting in an expensive lock. there were.
[0007]
Moreover, the lock with the open / close display mechanism of the prior application already filed by the applicant has a problem that the display portion (area) is small and it is not well understood when viewed from a distance.
[0008]
In view of such circumstances, the present invention eliminates the drawbacks of the prior art and employs a simple configuration to an existing conventionally known lock, and is a cylindrical lock having a lock fixing means that is an outer cylinder. From a main body and a rotating body having a key hole into which the key that is unlocked and rotated in the lock main body when the concave and convex portions of the inserted key that is an inner cylinder and the lock fixing means are aligned can be inserted. An opening / closing display mechanism made of transparent plastic is attached to the front surface of the rotating body that is the inner cylinder of the existing lock by a cover, and the opening / closing display mechanism displays an open or closed display so as to correspond to the display window. With an open / close display mechanism, which is formed so that the display plate with the cam with the rotating plate and the rotating plate are superposed, and the rotating plate with the indication of open or closed by the rotation of the lock rotates outwardly The purpose is to provide a lock.
[0009]
[Means for Solving the Problems]
The present invention is intended to solve the above-described problems, and employs the following technical means. In the first aspect of the invention, when the cylindrical lock body having the lock fixing means that is the outer cylinder and the concave and convex portions of the inserted key that is the inner cylinder are aligned with the lock fixing means, the lock is unlocked. In an existing lock composed of a rotating body having a keyhole into which the key that rotates in the lock body can be inserted, a rotating body that is an inner cylinder is inserted into the lock body from the front surface. An opening / closing display mechanism comprising a display plate and a rotary plate provided by being inserted into a groove formed between the cams facing the top and bottom of the display plate, the display plate being a rotary plate A cam having a projecting portion facing up and down is integrally formed so as to form a groove portion into which the display portion can be inserted, a cam having an upper projecting portion, a display window is formed, and a cam having a lower projecting portion Is provided with a display section that displays closed or open at a position corresponding to this display window. An arc-shaped rotating plate inserted into a groove formed between the upper and lower opposing cams of the display plate is provided with a display portion that displays open or closed, and the cam of the display plate protrudes A cam follower is provided at one end of the arc-shaped rotating plate so that it can be rotated by a portion through a shaft hole that is rotatably attached to the substrate, and the display unit for opening and closing the display plate is opened and closed by operating a key. An opening / closing display mechanism made of transparent plastic is attached to the front surface of the rotating body as the inner cylinder by a cover so that the rotating plate can be operated by a cam of the display plate and a cam follower of the rotating plate. In order to correspond to the display window, a display plate having a cam with an indication of opening or closing and a rotating plate are provided so as to overlap each other. To escape Employing the technical means of forming.
[0010]
In the invention according to claim 2 , in addition to the invention according to claim 1, in the existing 90-degree rotary lock, by the forward and reverse 90-degree rotation of the lock that collides with the rotation-control stopper and restricts the rotation, The technical means of performing open / close display by escape rotation of a rotating plate having a cam with open or closed display was adopted.
[0011]
In the invention according to claim 3 , in addition to the invention according to claim 1, in the existing 180-degree rotary lock, by the forward / reverse 180-degree rotation of the lock that collides with the rotation restricting stopper and restricts the rotation, The technical means of performing open / close display by escape rotation of a rotating plate having a cam with open or closed display was adopted.
[0012]
DETAILED DESCRIPTION OF THE INVENTION
The present invention employs a lock of a type in which a rotary body that is an inner cylinder is inserted from the front into an existing lock body that is an existing outer cylinder, and a cam having an open and closed display part is provided in order to make the display part as large as possible. An arc-shaped rotating plate having a display unit and an arc-shaped rotating plate having a display unit are superposed, and by rotating the key, the rotating plate having a cam having either an open or closed display is rotated outward. An open / close display mechanism in which the display located in the display window is converted, and a range of about 2/3 of the size of the lock can be made in the display unit.
As the open / close display, for example, blue and red display portions are provided.
[0013]
【Example】
Hereinafter, an embodiment of the present invention will be described in detail with reference to the accompanying drawings.
First, based on FIG. 1, the lock | rock which decomposed | disassembled each member and was shown with the perspective view as one concrete Example is demonstrated easily.
[0014]
The lock body 1 that is an outer cylinder and the rotary body 2 that is an inner cylinder are always inserted into the lock body 1 from the front. A boss part protrudes from the rear part of the rotating body 2, and the boss part is crushed and crimped with a washer and a dead bolt interposed therebetween. In addition, as a means for preventing the rotator 2 inserted into the lock body 1, a screw is provided at the rear portion of the rotator 2 (not shown), and is tightened with a nut via a washer.
[0015]
Alternatively, a groove is formed inside the lock body 1, and a retaining ring is attached to the groove at the rear part of the rotating body 2 via a spring. The retaining ring is retracted and inserted into a fixed position (groove part). ) And jumps into the groove.
[0016]
A rotating body 2 that is an inner cylinder is inserted into the lock body 1 that is an outer cylinder from the front surface, and a display plate 3 and a rotating plate 7 made of transparent plastic are disposed on the front surface of the rotating body 2. The opening / closing display mechanism A composed of the rotating plate 7 is attached to the front surface of the rotating body 2 with a cover 4 made of metal or synthetic resin.
[0017]
A specific embodiment of the present invention will be described in detail with reference to FIGS.
First, the cam-shaped display board 3 will be described.
As can be understood from FIGS. 2 to 4, an opening / closing display mechanism A including a display plate 3 and a rotation plate 7 described later is attached by a cover 4 to the front surface of the rotating body 2 that is an inner cylinder.
[0018]
The display board 3 is made of transparent plastic, and is formed by integrally forming a cam 13 having a projecting portion 12 so as to face the upper and lower sides so as to form a groove portion 11 into which the display portion 10 of the rotating plate can be inserted. It is.
[0019]
A display window 5 is formed in the cam 13 having the upper protrusion 12, and the cam 13 having the lower protrusion 12 has a red color corresponding to a closed or open display at a position corresponding to the display window 5. Or a blue color or the like is displayed.
Moreover, the display board 3 is rotated together at the same time by the rotation of the key.
[0020]
Next, as can be understood from FIGS. 5 and 6, the rotating plate 7 will be described in detail.
An arc-shaped rotating plate 7 made of transparent or opaque plastic is provided. The rotating plate 7 is provided with a rotating plate display unit 10 with a blue or red color corresponding to an open or closed display, and the display A cam follower 14 is provided so that it can be rotated by the protrusion 12 of the cam 13 of the plate 3.
A shaft hole 16 that is rotatably attached to the substrate 15 is provided at one end of the arcuate rotating plate 7.
[0021]
The open / close display mechanism A is formed by combining the display plate 3 and the rotary plate 7 described above.
The front surface of the lock body 1, which is an outer cylinder, is used as a substrate 15, and a rotating plate 7 is pivotally mounted on the outer peripheral portion of the substrate 15, and the display unit 10 of the rotating plate of the rotating plate 7 is a groove portion of the display plate 3. 11 is attached so that it can slide within.
The display units 6 and 10 not only give color but also have the same action and effect even if a separate colored display unit is formed.
[0022]
Further, as shown in FIGS. 7 and 8, in the 90-degree rotary lock, the state shown in FIG. 7 is a state where the key is inserted into the keyhole 8 and leveled, for example, an unlocked state. Therefore, this state can be changed to a locked state.
This is because the protrusion 12 of the cam 13 of the display plate 3 pushes the cam follower 14 of the rotating plate 7 and pushes it outward, and this action rotates it through the shaft hole 16 to rotate the display portion 10 of the rotating plate inward. It moves and slides in the groove 11 of the display plate 3 as a guide, and an open display becomes visible from the display window 5.
[0023]
When the rotary body 2 is rotated 90 degrees clockwise by using this as a key, the opening / closing display mechanism A attached to the front surface of the rotary body 2 rotates the projection 12 of the cam 13 of the display board 3 as shown in FIG. The display unit 10 of the open rotating plate escapes to the outside so that the display unit 10 of the rotating plate of the plate 7 is pushed outward, so that it is separated from the display window 5, and the closed display displayed on the display plate 3 is displayed on the display window 5. It is made to appear more.
Needless to say, the stopper 9 is provided so as to stop when rotated 90 degrees.
[0024]
Next, based on FIG. 9, FIG. 10, a 180 degree | times rotation lock is demonstrated.
FIG. 9 shows an open state, and FIG. 10 shows a closed state.
[0025]
The 180-degree rotating lock is substantially the same as the 90-degree rotating lock described above, the only difference is that the indication of opening and closing is converted by 180-degree rotation, and the stopper 9 is also 180 degrees. It is provided to stop by rotation.
Since other technical configurations are the same, detailed description is omitted.
[0026]
【The invention's effect】
As a result of employing the above configuration, the present invention can obtain the following effects.
(1) Since the area of the display portion can be increased, it can be seen well from a distance.
(2) Since it is moved by a cam system without using electricity or magnets, it is reliable and does not cause malfunction.
(3) Even if the display portion is halved, the display area is about twice that of the conventional display, so that it can be understood from a distance.
(4) When a display mechanism is provided in an existing lock, the means for making the display portion as large as possible is extremely simple and easy to process, so that the cost can be reduced as a result.
(5) It is convenient because the open / close state of the key can be solved visually when using it in a common fixture.
(6) The key opening / closing state can be visually confirmed as in-house document management.
[Brief description of the drawings]
FIG. 1 is a schematic perspective view showing an exploded view of a lock body of an outer cylinder, a rotating body as an inner cylinder, and a display unit according to an embodiment of the present invention.
FIG. 2 is a front view of a display board which is a part of an open / close display mechanism in the embodiment.
FIG. 3 is a side view of the display panel.
FIG. 4 is a plan view of the display panel.
FIG. 5 is a front view of a rotating plate that is a part of the open / close display mechanism in the embodiment.
FIG. 6 is a side view of the rotating plate.
FIG. 7 is a plan view showing an open state when the open / close display mechanism of the present invention is employed in a 90-degree rotary lock.
FIG. 8 is a plan view showing a closed state when the open / close display mechanism of the present invention is employed in a 90-degree rotary lock.
FIG. 9 is a plan view showing an open state when the open / close display mechanism of the present invention is employed in a 180-degree rotary lock.
FIG. 10 is a plan view showing a closed state when the open / close display mechanism of the present invention is employed in a 180-degree rotary lock.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 ...... Lock body 2 ... Rotating body 3 ... Display board 4 ... Cover 5 ... Display window 6 ... Display part of display board 7 ... Rotation Plate 8... Key hole 9... Stopper 10... Display portion 11 on the rotating plate... Groove 12. .... Board 16 ... Shaft hole A ... Open / close display mechanism

Claims (3)

When the cylindrical lock main body 1 having the lock fixing means which is the outer cylinder and the concave and convex portions of the inserted key which is the inner cylinder are aligned with the lock fixing means, the cylinder is unlocked and rotated in the lock main body. In an existing lock comprising a rotary body 2 having a key hole 8 into which the key can be inserted, the rotary body 2 that is an inner cylinder is inserted into the lock body 1 from the front, and displayed on the front of the rotary body 2. An opening / closing display mechanism A comprising a plate 3 and a rotating plate 7 provided by being inserted into a groove 11 formed between cams 13 facing the upper and lower sides of the display plate 3 is disposed. A cam 13 having a projecting portion 12 facing up and down is integrally formed so as to form a groove portion 11 into which the display portion 10 of the rotating plate 7 can be inserted, and a display window 5 is provided on the cam 13 having the upper projecting portion 12. The cam 13 having the lower protrusion 12 is closed at a position corresponding to the display window 5. Further, a display unit 6 for displaying opening is provided, and an arcuate rotary plate 7 inserted into a groove 11 formed between the cams 13 facing the upper and lower sides of the display plate 3 is opened or closed. Through a shaft hole 16 that is rotatably attached to the substrate 15 at one end of the arcuate rotating plate 7 so that it can be rotated by the protruding portion 12 of the cam 13 of the display plate 3. The cam follower 14 is provided so that the rotary plate 7 can be operated by the cam 13 of the display plate 3 and the cam follower 14 of the rotary plate 7 so as to open and close the opening / closing display portion of the display plate 3 by operating the key. An opening / closing display mechanism A made of transparent plastic is attached to the front surface of the rotating body 2, which is the inner cylinder, by a cover 4, and the opening / closing display mechanism A displays open or closed so as to correspond to the display window 5. Display board having a cam 13 And the rotating plate 7 are superposed, and the rotating plate 7 having an indication of opening or closing is formed so as to be escaped and rotated outward by the rotation of the lock. .   In an existing 90-degree rotating lock, it opens and closes by the escape rotation of the rotating plate 7 having a cam with an indication of open or closed by the forward and reverse 90-degree rotation of the lock, which collides with a rotation restricting stopper and restricts the rotation. 2. A lock with an open / close display mechanism according to claim 1, wherein display is performed. In an existing 180-degree rotating lock, it opens and closes by the escape rotation of the rotating plate 7 having a cam with an indication of open or closed by the forward and reverse 180-degree rotation of the lock that restricts the rotation by colliding with a rotation restricting stopper. 2. A lock with an open / close display mechanism according to claim 1, wherein display is performed.

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