JPH0755776Y2 - Switch operation display device - Google Patents

Description

[Detailed description of the device] (Industrial application field) This device is designed to reduce the load on facilities such as hotels and inns.
For example, the present invention relates to a switch operation display device that determines whether or not a load such as a television set, a washing machine, or a dryer is used by activating a switch connected to a power supply circuit of the load.

(Prior art) For example, when using a television set installed in a hotel guest room for a fee, a charging system in which a certain amount of coins are inserted into the coin mechanism and the viewing time is adjusted to the amount of money Regardless of the length of time, if you watch the TV even once, you can roughly divide it into billing methods that collect a certain amount of money.

In the latter case, a card system can be considered as one of the means for determining whether or not the power of the television is turned on. this is,
For example, if the TV is equipped with a mechanism that handles magnetic cards, and the card can be turned on only after the card is inserted into this mechanism, whether or not this card was used at checkout By using a magnetic reading device provided at the front, it is possible to know whether or not the television is used. It is also conceivable to use punch cards instead of magnetic cards.

There is also a charging method proposed in Japanese Patent Laid-Open No. 58-195313. This system stores the fact that the power of a load such as a television is turned on, and has a feature that it enables an offline charging system.

(Problems to be solved by the invention) When a magnetic card or punch card is used, the running cost of the card as a consumable item is required, and a card processing device is attached to each load, or a device for checking the load. However, there is a problem in that the cost of the system for paying for the load becomes high. In addition, there is a concern that trouble may occur due to loss or breakage of the card.

In the case of the method proposed in the above publication, since the stabilizing means for providing the movable permanent magnet with two stable states is composed of the braking member composed of the leaf spring that is in contact with the permanent magnet, the movable permanent magnet. There is a problem that a large magnetic force is required for a magnet for changing one stable state to another stable state. A large magnetic force can be obtained by using an electromagnet, but the cost is inevitable.

It is an object of the present invention to provide a switch actuation display device which can be configured at a low cost and which is integrated with a key chain, which is a thing that guests and facility users can carry with them.

(Means for Solving the Problems) A switch operation display device of the present invention is a switch operation in which a movable magnet rotatably housed in a casing integrally provided with a key holder body and one magnetic pole of the movable magnet face each other. The magnetic body that selectively holds the movable magnet in a non-contact position at any one of the switch inactive positions where the position and the other magnetic pole face each other, and the switch operating position or the switch inactive position. A display unit formed in the casing for visually observing the rotating position of the movable magnet from the outside of the casing, and forming a part of a power circuit of a load,
A switch that is operated when the casing is inserted, and a magnet that repels one magnetic pole of the magnet and rotates the magnet by 180 degrees when the movable magnet is inserted into the switch operating recess, and has the same magnetic property as the one magnetic pole. And a fixed magnet whose magnetic pole is close to the moving path of the casing.

(Operation) For example, when the television is not watched, the state where the power is not turned on is displayed on the display part of the casing of the key chain. This display of the switch inoperative position is maintained by the movable magnet being held in its rotational position by a magnetic body that is not in contact with the magnet. When the casing is inserted into the switch operating recess, one magnetic pole of the movable magnet is rotated 180 degrees by the repulsion of the fixed magnet, and the magnetic body holds one magnetic pole to hold the movable magnet in the switch operating position. When the casing is inserted to a predetermined position, the switch is operated and the display of the switch operation by the rotated movable magnet is located on the display.

(Embodiment) Hereinafter, the invention will be described in detail based on the illustrated embodiment.

In FIG. 1, for example, a television TV as a load provided in a guest room of a hotel is placed on a television stand 1. The TV stand 1 is a device for breaking the power supply circuit of the TV TV and selecting the TV channel and selecting the TV broadcast and the video broadcast. A switch operating recess 2 is formed in the television stand 1, and the power supply circuit is turned on only after the key holder 3 is inserted into the recess 2. In FIG. 10, a switch SW composed of a proximity switch is arranged on the side wall of the recess 2. The switch SW is connected in series between the outlet 4 and the power supply circuit 5. The power supply circuit 5 is connected to the power supply circuit of the television TV. The switch SW can be turned on only when the key holder 3 is inserted into the recess 2.

As shown in FIG. 2, a casing 6 is fixed to one end of the key holder 3. The casing 6 has a display window 7 made of a transparent material which forms a part of a display section described later.
Are formed.

In FIGS. 3 and 5, the casing 6 comprises a casing body 6a and a cover 6b superposed on the casing body 6a. One end 6c of the casing 6 is integrally fitted to one end 3a of the key holder body 3A. Therefore, the key holder 3 is composed of the key holder main body 3A for holding the key K and the casing 6 provided integrally with the key holder main body 3A. Bearing portions 8a and 8b facing each other are formed on the casing body 6a and the cover 6b, and rotatably support the support shaft 9. Both ends 9a, 9b of the support shaft 9 are formed in a conical shape for reducing friction with the bearing. A movable magnet 10 made of a permanent magnet is fitted and fixed to the support shaft 9. A magnetic body 11 made of an iron plate or the like is fixed to the side wall 6aa of the casing body 6a. The magnetic body 11 holds the magnet at the rotational position when the north pole or the south pole of the movable magnet 10 is in a non-contact state. That is,
The magnetic body 11 is arranged so as not to contact the movable magnet 10. In FIG. 3, the movable magnet 10 has its north pole facing the magnetic body 11 and is placed in the switch operating position (details will be described later). In the case of the illustrated example, a display plate 12 made of a disk is fixed to the surface of the movable magnet 10 on the display window 7 side. The surface of the display board 12 has a switch operation display A
And a switch non-operation display B are painted in two colors. Either one of these displays A and B is viewed through the display window 7 according to the rotational position of the movable magnet 10. As shown in FIG. 3, when the magnetic pole N faces the magnetic body 11, the switch operation display A is visually observed from the display window 7, and when the magnetic pole S faces the magnetic body 11, the switch does not operate. The display B is viewed through the display window 7.

In FIG. 3, a fixed magnet 13 is disposed on the inner wall 2a of the switch operating recess 2 at a position upstream of the switch SW in the casing insertion direction. This solid magnet 13 is
In the case of the illustrated example, the north pole is fixed so as to face the inside of the recess. The fixed magnet 13 rotates the movable magnet 10, and its magnetic pole end is located on the inner wall 2a of the recess 2. On the other hand, the movable magnet 10 rotatably provided inside the casing 6 is as close as possible to the outer surface of the casing so that its ends (N and S poles) are greatly affected by the magnetic field of the fixed magnet 13. Be positioned to.

A positioning groove 2c for determining the insertion posture of the casing 6 is formed on the other side wall 2b of the recess 2, and the casing 6 has a positioning groove 2c.
A positioning protrusion 6c that engages with the groove 2 is formed.
Since it is not possible to insert the casing 6 that does not have the posture in which the protrusion 6c can be engaged with the groove 2c, the casing side wall where the magnetic body 11 is provided does not face the fixed magnet 13.

The operation of the embodiment configured as described above will be described. In the key chain 3 delivered at the front at the time of check-in, the magnetic pole S of the movable magnet 10 is opposed to the magnetic body 11. Therefore, the switch inoperative display B can be seen through the display window 7 of the casing 6 (see FIG. 6).

When the user wants to watch the television provided in the passenger compartment, the casing 6 of the key holder 3 is inserted into the switch operating recess 2 as shown in FIG. When the movable magnet 10 of the casing 6 inserted in the direction of the arrow a reaches a position facing the fixed magnet 13, the magnetic pole N of the movable magnet 10 repels the magnetic pole N of the fixed magnet 13, so that the movable magnet moves the casing. Then, it slightly rotates in the direction opposite to the arrow b direction, and then is rotated in the arrow b direction. When the movable magnet 10 rotating in the direction of the arrow b rotates as shown by the chain double-dashed line, an induction magnetic pole (S) is generated in the magnetic body 11 corresponding to the magnetic pole N, and the other magnetic pole S is the magnetic pole of the fixed magnet 13. As it is pulled by N, the rotation of the movable magnet 10 in the direction of the broken arrow is accelerated. As shown in FIG. 7, when the movable magnet 10 rotates 180 degrees and the magnetic pole N faces the magnetic body 11,
The induction position (S) of the magnetic body holds the rotational position (switch operating position) of the movable magnet 10. When the casing 6 is inserted to a predetermined position, the magnetic pole S of the movable magnet 10 turns on the switch SW, as shown in FIG. Switch SW
Turning on turns on the power of the TV, and it becomes possible to select a desired channel. On the other hand, as shown in FIG. 7, when the movable magnet 10 is rotated to the switch operating position and is held in this rotating position, the switch operating display A corresponds to the display window 7 of the casing 6. . When the insertion speed of the key holder 3 is slow, the movable magnet 10 rotates in the direction opposite to the arrow b.

As shown in FIG. 3, the key chain 3 for making the switch operation display A correspond to the display window or the like is provided with the switch operation recess 2
When the switch SW is turned on, the magnetic pole S that turns on the switch SW is retracted, so that the switch is turned off and the power supply to the TV is cut off. The movable magnet 10 in the casing pulled out from the recess 2 maintains the switch operating position, which is the rotational position thereof, with the magnetic body 11. When watching the television again, the casing 6 may be inserted into the recess 2. In this case, the movable magnet 10 is still held in the switch operating position shown in FIG. 3, and the switch SW indicates the magnetic pole S of the movable magnet 10.
Turned on by. At the time of check-out, when the key holder 2 corresponding to the switch operation display A (see FIG. 7) is presented to the front at the display window 7, the switch operation display A is confirmed at the front and the TV charge is added.

There is a reset device at the front. This reset device has a reset magnet whose S pole faces the side wall of the recess instead of the fixed magnet 13 shown in FIG.
Is inserted, the movable magnet 10 is rotated by 180 degrees, and the switch inoperative display B is made to correspond to the display window 7.

In the illustrated embodiment, the proximity switch is used as the switch. However, the switch is not limited to the proximity switch and may be a micro switch or a photoelectric switch as long as the switch has a structure in which its contact cannot be easily closed with a material other than the key holder inserted in the recess 2. It may be a switch. Further, instead of the switch operation indications A and B, it is also possible to display by letters or pictures / symbols such as "unused" and "used".

Different examples of the structure of the movable magnet will be described with reference to FIGS. 8 and 9. FIG. 8 shows a pair of permanent magnets Mg, Mg connected by a holder 80 made of a magnetic material, to which a display plate 81 made of a disk is fixed. As described above, the display plate 81 has a structure in which the switch operating position is displayed by color coding or character display. In FIG. 9, the pair of permanent magnets Mg, Mg are held by a holder 90 made of a non-magnetic material. The pair of magnets are magnetically connected by a magnetic body (not shown). This holder 90 also serves as a display board, and is color-coded and character-displayed. Needless to say, the movable magnet shown in FIGS. 8 and 9 is rotatably supported by the casing by the support shaft. Further, the display plate is not limited to a circular plate because it is sufficient if the rotating position of the movable magnet is displayed on the display window 7.

(Effect) As described above, according to the present invention, it is possible to determine whether or not the load is used depending on whether or not the power switch is turned on without using consumable items such as a card, so that running cost is reduced. In addition, it can be realized at a low cost. Further, since the means for holding the movable magnet in the operating position and the non-operating position is a magnetic body that is not in contact with the movable magnet, the movable magnetic body can be easily rotated, and a fixed magnet having a small magnetic force is sufficient, so that the structure is simple. , Cost will be low.

[Brief description of drawings]

1 is a perspective view showing an example of a television receiver to which the switch actuation display device of the present invention is applied, FIG. 2 is a perspective view showing a casing integrally provided in a key holder body, and FIG. 3 is one of the present invention. FIG. 4 is a plan sectional view showing an embodiment, FIG. 4 is a sectional view taken along line YY in FIG. 3, FIG. 5 is a sectional view taken along line XX in FIG. 3, and FIG. FIG. 7 is a plan view illustrating the operation of the movable magnet when it is inserted into the recess, FIG. 7 is a plan view of a main portion showing a switch operating position, FIG. 8 is an exploded perspective view showing an example of the configuration of the movable magnet, and FIG. FIG. 10 is a perspective view showing another example of the movable magnet, and FIG. 10 is a block diagram showing the relationship between the switch and the power supply circuit. 2 …… Switch operating recess, 3A …… Key holder body,
5 ... Power supply circuit, 6 ... Casing, 7,12,81,90 ... Display, 10, Mg ... Movable magnet, 11 ... Magnetic material, 13 ... Fixed magnet, SW ... Switch.

Claims (1)

[Scope of utility model registration request] 1. A casing integrally provided with a key holder main body, a movable magnet rotatably supported and housed in the casing, a switch operating position where one magnetic pole of the movable magnet opposes, and the other magnetic pole. Is formed in the casing and a magnetic body that selectively holds the movable magnet in a non-contact position at any one of the switch inoperative positions facing each other, and is located in the switch operative position or the switch inoperative position. A display portion for visually observing the rotational position of the movable magnet from outside the casing, and a switch operating recess into which the casing portion is inserted are provided to form a part of a power supply circuit. The switch that is operated when inserted, and the switch operating recess that is disposed upstream of the switch in the insertion direction of the casing of the switch operating recess. A switch composed of a fixed magnet in which a magnetic pole having the same polarity as the one magnetic pole is brought close to the movement path of the casing, which repels one magnetic pole of the magnet to rotate the magnet by 180 degrees when the movable magnet is inserted. Operation display device.