JP3942116B2 - Locking / unlocking display device for cylinder lock - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to an improvement in a locking / unlocking display device for a cylinder lock which can be understood at a glance from the state of locking / unlocking of a cylinder lock provided on a drawer of a cabinet, a door of a rocker or a door of an entrance / exit.
[Prior art]
As this type of conventional locking / unlocking display device, for example, the one described in JP-A-9-25751 can be exemplified.
[0002]
One locking / unlocking display device disclosed in this publication is provided with a cylinder head that can be rotated by 180 ° with respect to a lock body, and a surface plate colored with two different colors and a part of the surface of the display plate. Attach a case cover with an opening that exposes the cylinder in order, and rotate the display board or case cover as the cylinder head rotates to check the locked or unlocked state by the color of the display board visible from the opening of the case cover Another lock / unlock display device is provided with a cylinder head colored with two different colors around the keyhole so that the cylinder head can be rotated 180 ° with respect to the lock body. Cover the case cover with an opening that exposes the color, attach it to the lock body, and rotate the cylinder head to open the case cover. The locked or unlocked state can be confirmed by the color of the colored part visible from the part.
[0003]
However, these conventional devices all require a case cover having an opening, and the case cover is provided so as to be exposed on the front surface of the lock. Another problem is that the structure is complicated, and that the case cover may be dropped due to the key tip or body being caught on the case cover.
[0004]
[Problems to be solved by the invention]
The locking / unlocking display device for a cylinder lock according to the present invention has been proposed for the purpose of solving the above-mentioned problems by eliminating the case cover which has been a problem in conventional devices. That is, the present invention has been proposed for the purpose of reducing the number of parts, reducing the cost, and solving the problem of the case cover falling off.
[0005]
[Means for Solving the Problems]
In order to achieve the above object, the present invention provides a cylinder lock including a rotatable inner cylinder into which a key is inserted and a fixed outer cylinder disposed around the inner cylinder; the front surface of the fixed outer cylinder at a front end portion of the inner cylinder An integral flange portion covering part or all of the inner cylinder is provided; on the front surface of the fixed outer cylinder, the indication of locking and unlocking is angular with respect to the rotation direction of the inner cylinder so as to face the flange portion of the inner cylinder. The flange portion is provided with an opening for selectively displaying the lock display or unlock display according to the lock position or the unlock position occupied by the inner cylinder. This is a configuration condition.
[0006]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, the present invention will be described based on two embodiments shown in the drawings.
1 and 2 show a first embodiment of the present invention, and FIGS. 3 to 5 show a second embodiment of the present invention.
[0007]
In the first embodiment shown in FIGS. 1 and 2, reference numeral 10 denotes a cabinet drawer, a rocker door, an entrance door, or the like, which is an attachment object to which the cylinder lock is attached.
[0008]
As a lock in which the present invention is implemented, any type of lock such as a disk cylinder lock, a rotary disk cylinder lock, a pin cylinder lock, or a magnetic tumbler cylinder lock can be adopted as long as it is a cylinder lock.
[0009]
The cylinder lock of the illustrated example is a disk cylinder lock, and includes a rotatable inner cylinder 1 having a key hole 11 into which a key is inserted, and a fixed outer cylinder 2 disposed around the rotatable inner cylinder 1.
[0010]
The fixed outer cylinder 2 that is fixed to the mounting object 10 and has a rectangular, circular, or other arbitrary shape in cross section is an outer cylinder that directly holds the rotatable inner cylinder 1 as in the illustrated example. Alternatively, it may be an attachment cylinder that is fixedly mounted directly or around a spacer cylinder around the outer cylinder.
[0011]
In FIG. 1, reference numeral 3 denotes a disc tumbler that is movably mounted in the inner cylinder 1 and is urged by a tumbler spring (not shown), and 4 is inserted in a state of passing through the rear portion of the fixed outer cylinder 2. Although not shown, the tail bolt of the inner cylinder 1 is linked directly or indirectly via a cam piece or the like, which is a dead bolt itself or a linkage member linked to the dead bolt.
[0012]
The cylinder lock in which the present invention is implemented is configured such that the positions of the inner cylinders in the locked state and the unlocked state are angularly shifted from each other with respect to the rotational direction, that is, the angular positions are different.
[0013]
In other words, as a cylinder lock to which the present invention is applied, in the locked state and the unlocked state, the position where the key (joint key) is inserted and removed is angularly shifted, for example, 90 °, 180 ° or 270 °. A simple structure is adopted.
[0014]
In the cylinder lock shown in FIG. 1, the position of FIG. 1 (A) is in the locked state and the position of FIG. 1 (C) is in the unlocked state with respect to the inner cylinder 1, and the angular position is shifted by 180 ° between the two. ing.
[0015]
And in this invention, the integral flange part 12 which can cover a part or all of the front surface of the fixed outer cylinder 2 is provided in the front-end part of the inner cylinder 1, and also the flange part 12 has a circumference. An opening 13 formed as a notch or a punched hole is provided in a part of the direction. The front shape of the opening 13 can be an arbitrary shape such as an arc or a circle.
[0016]
In the present specification, the term “inner cylinder” includes those having a key guide part integrally with the front part of the inner cylinder part. That is, the flange portion 12 may be provided in the key guide portion.
[0017]
On the other hand, on the front surface of the fixed outer cylinder 2, a lock display 21 a and an unlock display 21 b are mutually angularly related to the rotation direction of the inner cylinder 1 so as to face the back surface of the flange portion 12 of the inner cylinder 1. Apply by shifting the position.
[0018]
Locking and unlocking display 21 can be represented by color, characters and / or symbols, etc., which may be provided directly on the fixed outer cylinder 2 as in the first embodiment, which will be described later. For example, it may be provided indirectly with a display board as in the second embodiment.
[0019]
More specifically, the lock / unlock display 21 shown in FIGS. 1 and 2 is expressed in two colors in an annular shape on the front surface of the fixed outer cylinder 2, and half of the display is a lock display 21 a. For example, the other half is drawn with blue printing as the unlocking display 21b. As another coloring means, painting or the like can also be used.
[0020]
In the drawing, in order to make it easy to distinguish between locking and unlocking in the unlocking display 21, one locking display 21 a is shown with crossed diagonal lines, and the other unlocking display 21 b is marked with a number of points. It is expressed.
[0021]
The operation of the lock / unlock display apparatus according to the first embodiment of the present invention having the above structure will be described as follows.
[0022]
In the cylinder lock in the locked state of FIG. 1 (A), the lock display 21a on the front surface of the fixed outer cylinder 2 is exposed through the opening 13 of the flange portion 12 of the inner cylinder 1, so that the user looks at first glance. And know that the lock is locked.
[0023]
When a key (not shown) is inserted into the key hole 11 in FIG. 1 (A) and the inner cylinder 1 is rotated 180 ° in the direction of arrow P and pulled out, for example, the cylinder lock is released as shown in FIG. 1 (C). The dead bolt or the linking member 4 is displaced to the left, for example, and the restrained state of the attachment object 10 is released.
[0024]
At this time, the opening 13 of the flange portion 12 is also moved by 180 ° due to the rotational displacement of the inner cylinder 1, and the unlocked display 21 b of the fixed outer cylinder 2 can be seen from the opening 13. In this case, the user can know at a glance that the lock is unlocked, and can prevent the user from forgetting to lock the key when performing the next lock.
[0025]
In order to return from the unlocked state of FIG. 1 (C) to the locked state of FIG. 1 (A), it is only necessary to insert the key and rotate the inner cylinder 1 180 ° in the direction of arrow Q in the opposite direction to pull it out. The opening 13 of the flange portion 12 of the inner cylinder 1 returns to the original angular position (FIG. 1A), and the lock display 21a appears in the opening 13.
[0026]
Next, a second embodiment of the present invention shown in FIGS.
In the second embodiment, the members or parts indicated by the same reference numerals as those in the first embodiment shown in FIGS. 1 and 2 represent members or parts that are equivalent to each other. Only the points that are
[0027]
In the second embodiment, the indication of locking / unlocking is indirectly provided with a separate display plate 21 that is annular with respect to the front surface portion of the fixed outer cylinder 2.
[0028]
As clearly shown in FIG. 5, the display plate 21 includes two engaging leg pieces 21 c and 21 d that are integrally extended rearward from the annular front plate portion, and divided into two symmetrically. It is formed by assembling a pair of partial pieces 21a and 21b.
[0029]
The pair of partial pieces 21a and 21b are made by molding polypropylene or other polymer material containing colored portions such as coloring materials of different colors, and the one partial piece 21a constitutes a red lock display, for example. The other partial piece 21b constitutes a blue unlocked display, for example.
[0030]
When a semi-transparent or transparent polymer material containing a phosphorescent component in addition to a coloring component is used as a polymer material for forming a pair of partial pieces, when the apparatus of the present invention is used in the dark, the pair of portions It is preferable that the display 21a and 21b of the locking / unlocking seen through the opening 13 of the inner cylinder 1 is easily seen by the light emission of the display plate 21 formed by the piece.
[0031]
The two partial pieces 21a and 21b are assembled by fitting the integral protrusions 21e and fitting holes 21f provided at the respective joint portions into the fitting holes 21f and protrusions 21e of the mating partial pieces, and display as a whole. As shown in FIGS. 3 and 4, the plate 21 presses the back side of the front plate portion against the front surface of the fixed outer cylinder 2, and the engagement legs 21 c and 21 d are provided on the front surface of the fixed outer cylinder 2. The fixed outer cylinder 2 is attached by being inserted into the holes 22 and locked.
[0032]
An adhesive may be supplementarily applied between the pieces 21a and 21b of the display board 21 and between the display board 21 and the fixed outer cylinder 2 as necessary.
[0033]
In FIG. 4, reference numerals 23 and 23 denote protrusions integrally protruding on the front surface of the fixed outer cylinder 2, and these protrusions 23 play a role of preventing the displacement of the entire display panel 21 together with the engagement legs 21 c and 21 d and the like. .
[0034]
In addition, since the effect | action of the locking / unlocking display apparatus of 2nd Example is based on that of the locking / unlocking display apparatus of 1st Example mentioned above, the description is abbreviate | omitted.
[0035]
Unlike the printing or painting, the display board 21 in the second embodiment contains a coloring component on the entire surface, not on the surface, so that the surface portion is worn by sliding contact with the flange portion 12 of the inner cylinder 1. Even if it does, the display 21a, 21b of locking and unlocking does not peel off, and there exists an advantage that a display function is exhibited over a long period of time.
[0036]
【The invention's effect】
The above-described locking / unlocking display device according to the present invention does not require the case cover provided in the conventional device, regardless of whether the locking / unlocking state of the cylinder lock has a function that can be easily discriminated visually. Therefore, the cost can be reduced by reducing the number of parts, and the problem of the case cover falling off can be solved.
[Brief description of the drawings]
1A and 1B are diagrams showing a first embodiment of a lock / unlock display device for a cylinder lock according to the present invention, in which FIG. 1A is a front view in a locked state, FIG. 1B is a partially longitudinal plan view thereof, and FIG. It is a front view in a locked state.
2 is a front view showing a fixed outer cylinder removed from the locking / unlocking display apparatus according to the first embodiment of FIG. 1; FIG.
FIGS. 3A and 3B are diagrams showing a second embodiment of the lock / unlock display device for a cylinder lock according to the present invention, in which FIG. 3A is a front view in a locked state, FIG. 3B is a partially longitudinal plan view thereof, and FIG. It is a front view in a locked state.
4 is a front view showing a fixed outer cylinder removed together with a display plate from the locking / unlocking display apparatus according to the second embodiment shown in FIG. 3;
5A is a perspective view, FIG. 5B is a front view, FIG. 5C is a plan view, and FIG. 5D is a diagram showing only a display panel removed from the locking / unlocking display device of the second embodiment shown in FIG. Is an exploded front view.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Inner cylinder 12 Flange part 13 Opening 2 Fixed outer cylinder 21a Locking display 21b Unlocking display

Claims (1)

In a cylinder lock having a rotatable inner cylinder into which a key is inserted and a fixed outer cylinder arranged around the inner cylinder; an integral flange portion covering a part or all of the front surface of the fixed outer cylinder at the front end of the inner cylinder Providing an indication of locking and unlocking on the front surface of the fixed outer cylinder so as to face the flange portion of the inner cylinder, and angularly shifting the position with respect to the rotation direction of the inner cylinder; and the flange Locking / unlocking in a cylinder lock having a configuration in which an opening is provided in the part so that the indication of locking or unlocking can be selectively seen according to the locking position or unlocking position occupied by the inner cylinder Display device.

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