JP2000123602A - Light emitting stick - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a light emitting stick with a high light performance effect which is applicable to muddlers or the like and which automatically emits light and blinks when a vibration is applied. SOLUTION: A light emitting stick 60 has a structure in that a casing 1, which contains a light emitting and blinking device having installed on a print wiring board a light emitting diode 21, a pulse illuminating control circuit for controlling the illumination of the light emitting diode 21, a vibration sensor which detects vibrations and causes switching, and a button battery 28, is attached to one end 3a of a transparent plastic rod 3 so that the light emitting portion of the light emitting diode 21 is positioned at the tip surface of the transparent plastic rod 3. The light emitting stick 60 lights up as the luminous flux of the light emitting diode passes the inner portion of the transparent plastic rod 3 taking this as a light passage, and reflects and refracts outwards from the tip 3b having been satin finished and side surfaces provided with streak like recesses.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention mainly belongs to the technical field of toys and daily necessities, and more specifically, a light emitting diode (abbreviated as LED)
Also called. The present invention relates to a light-emitting stick that includes flashing light-emitting means for temporarily flashing light.

[0002]

2. Description of the Related Art In the field of toys and daily necessities, the length is several tens cm.
Few rod-shaped objects have a mechanism that emits light in their usage. For example, there are some cases where a switch emits light constantly with a toy sword or pen-shaped light. Moreover, there is no product having a function of automatically blinking and emitting light in a normal usage as a product having a shape like a stick.

[0003] As a product which has been enhanced in commercial value by automatically flashing and emitting light in usage, footwear can be cited as an example other than stick-shaped ones.

[0004] That is, shoes (especially children's shoes) in which a device that senses vibration or pressure when walking and automatically emits light and blinks is attached to the heel portion and the instep portion are already on the market. In this regard, Japanese Patent Application No. 9-246302, which was invented earlier by the present inventors, has been proposed.
A vibration sensor having a new structure is proposed in the specification of Japanese Patent Application Publication No. 2002-157,972, which is an improvement in a shoe provided with the above-mentioned flashing device.

FIG. 6 is a sectional view for explaining the structure of the vibration sensor. In the figure, the vibration sensor 24
A plate electrode 26 fixed on a printed circuit board 29; and an upper hemispherical lid 35 fixed on the printed circuit board 29 so as to close the plate electrode 26 while insulating the plate electrode 26.
A conductive metal container 25 integrally formed with a lower cylindrical portion 36 and a lower end flange portion 37; and the plate electrode is sealed in the inner space of the conductive metal container 25 and freely moves in the inner space by vibration. 26 and the conductive metal container 25
And a conductive metal sphere 27 serving as an open / close contact that conducts between the conductive metal spheres. The upper hemispherical lid 35 has the advantage of facilitating mold molding, being fully rotationally symmetric, with no bias in directionality, and having the conductive metal sphere stabilized at the bottom when inverted. Further, there is an advantage in the case where the occupation area is minimized and the demand for miniaturization is strong. In addition, the lower end flange portion 37 serves as a flange to enable water-tight adhesion to the printed circuit board 29 and contributes to hermeticity. In addition, a hermetic seal 3 with the printed circuit board
8 would also be excellent to achieve good sealing. The outer diameter of the upper hemispherical lid 35 is about 4 mm.
The conductive metal sphere 27 has a diameter of about 2 to 3 mm. The material of the conductive metal container 25 is, for example, brass, and the conductive metal balls 27 are made of brass plated with gold.

[0006]

Not only in the above-mentioned shoes but also in toys and commodities in the field of daily necessities, if the articles automatically flash beautifully in red or green during use, the degree of attention will increase. It is expected that the product value will further increase.
In this regard, transparent (including lightly colored translucent) stick-like products (sticks) can be used to produce effective effects when they flash, such as muddlers, stir bars, and events that stir alcoholic beverages in glasses. Lights, ballpoint pens, toy sticks and knives used in concerts and concerts are conceivable. Each of them is provided with a form in which it is inevitably used in ordinary usage by giving a swing or vibration.

[0007] Since these are generally used by hand, they are so-called sticks if the products are generally categorized according to their size and shape. It is expected to apply.

Needless to say, the light emitting diode consumes less power, does not generate heat, is small, has a long life,
This light source has excellent advantages such as a simple circuit because it can be driven at a low voltage.

However, since the light quantity of the light emitting diode is small, it is necessary to make the stick emit light effectively.

The present invention has been made in view of the above circumstances, and an object of the present invention is to provide a novel light emitting stick in which a rod-shaped portion emits light and blinks by sensing shaking or vibration during use.

[0011]

According to the present invention, there is provided a light emitting diode, a pulse lighting control circuit for controlling blinking of the light emitting diode, and a vibration sensor for sensing and switching vibration. A light emitting stick, wherein a housing accommodating a DC power supply is attached to one end of the transparent plastic rod so that a light emitting portion of the light emitting diode is located at a tip end surface of the transparent plastic rod. I do.

(2) The light emitting stick according to the above (1), wherein a matte finish is applied to a tip of the transparent plastic rod opposite to an end to which the housing is attached. .

(3) Further, a groove is formed on the surface of the transparent plastic rod (1).
A luminescent stick according to the preceding claims is provided.

(4) Further, the transparent plastic rod includes a housing side portion having a tapered tip portion provided with the groove, and a tip side portion water-tightly fitted to the tip portion of the housing side portion. The light-emitting stick according to the above (1), (2) or (3), comprising:

(5) A housing containing a pulse lighting control circuit for controlling blinking of the light emitting diode, a vibration sensor for sensing and switching vibration, and a DC power supply is attached to one end of the cylindrical stick. In addition, the present invention provides a light emitting stick characterized in that a wiring cord is led out from the inside to the other end of the cylindrical stick and a light emitting diode connected thereto is arranged at the end.

(6) Further, a slit is provided on the side surface of the housing and an insulating plate piece is inserted into and removed from the slit through the slit to turn on / off conduction of the DC power supply with the pulse lighting control circuit. A light-emitting stick according to any one of the above (1) to (5), characterized by having a structure as a switch mechanism.

In the present invention, the "stick" is
For example, it refers to a muddle that stirs liquor and the like in a glass, a commanding stick, a penlight used in an event or a concert, a ballpoint pen, a toy stick or a knife, and the like, in general, a stick-shaped one that can be held by hand.

[0018]

Embodiments of the present invention will be described below in detail with reference to the drawings.

FIG. 1 is a view showing the appearance (plan view, side view) of a mudler which is an application example of the light emitting stick according to the present invention. FIG. 2 is a plan view shape for explaining the structure of a light-emitting flashing device provided in the light-emitting stick according to the present invention;
It is a side view shape. FIG. 3 is a circuit block diagram of the light emission blinking device according to the present invention. FIG. 4 is a partially enlarged view showing an example of an optical path of the light emitting stick according to the present invention. FIG. 5 is a partially enlarged view for explaining the shape of the tip of the light emitting stick according to the present invention and the means for reflection and refraction.

In FIG. 1 or FIG. 2, the light emitting stick 60 includes a light emitting diode 21 and the light emitting diode 21.
Pulse lighting control circuit 22 for controlling flickering, plate electrode 26 for sensing and switching vibration, and conductive metal container 2
5, a vibration sensor 24 including a conductive metal ball 27,
A button battery 28 as a DC power supply;
1 housing the light-emitting flashing device 50 mounted on the
b, a combination with the lower lid 1a) is attached to one end 3a of the transparent plastic rod 3 so that the light emitting portion of the light emitting diode 21 is located at the tip end surface of the transparent plastic rod 3. If the light-emitting stick 60 is used as a muddler, the vibration sensor 24 repeats ON / OFF when stirring, and the pulse lighting control circuit 22 operates to flash the light-emitting diode 21 each time, so that it is excellent and visually beautiful. Become a madler and get a tasteful effect.

Here, the above-mentioned pulse lighting control circuit 22
The IC chip 23 is printed on a printed circuit board 29.
A chip-on-board that is directly mounted on the back side of the device and wire-bonded. Although one light emitting diode 21 is attached to the end of the printed circuit board 29 in FIG. 2, a two-color LED in which different light emitting diodes such as red and green are combined as shown in FIG. 3 may be used. It is preferable that the two-color LED 21 be blinked so as to blink in a chain. Also, once the switch of the vibration sensor 24 is turned ON or OFF, it blinks in a chain two or three times to stop blinking, and then the vibration sensor is again turned on. It is desirable to prevent blinking unless the switch 24 is switched from the viewpoint of saving power consumption and extending battery life. For example, a one-shot multivibrator circuit is used as the pulse lighting control circuit 22. The resistor R is a protection resistor for limiting and protecting the current of the light emitting diode 21.

The light emitting / flashing device 50 of FIG. 2 as described above is very small, having a length of about 40 mm, a width of Y = 22 mm, and a thickness of about 5 mm.

Light emitting stick 60 as the above-mentioned mudler
Is a stick having a circular cross section of about 6 mm in diameter and a length of about 14 cm using a plastic material (eg, acrylic resin) having excellent transparency.
Its surface is mirror-finished, and almost all of the light flux of the light-emitting diode 21 that has entered from one end face goes straight to reach the other end and radiates to the outside. It will glow. However, in this case, it is considered that the commercial value as a shining muddle with a limited light emitting area is small. At the end of the day, it is desirable to make each part of the transparent plastic rod 3 shine.

Therefore, as a first means, a light emitting stick having a matte finish as shown in FIG. 5 is applied to the tip 3b of the transparent plastic rod 3 opposite to the end 3a to which the housing 1 is attached. And In this matte finish, for example, the tip portion 3b of the transparent plastic rod 3 is surface-treated by sandblasting, and since fine irregularities are formed on the entire surface of the processed portion, light that has traveled straight through the inside of the transparent plastic rod 3 is applied. The light is emitted after being irregularly refracted in multiple directions on the uneven surface, and the effect of enlarging the light emitting surface is obtained.

This satin finish may be formed widely on the surface of the transparent plastic bar 3, but since the amount of luminous flux that travels straight inside the transparent plastic bar 3 hits the uneven surface, it is most effective to treat the tip 3b. It can be said that it is a target. In addition, if the light flux is diffused too widely, there is a problem that the light emitting surface becomes dark and the light emitting effect is weakened.

Therefore, as a second means, as shown in FIG. 4, grooves 4 (a U-shaped groove in addition to a V-shaped groove as shown in FIG. 4) are formed at a plurality of locations on the surface of the transparent plastic rod 3. A spot-shaped circular groove, a rectangular groove, or the like is applicable.).

With the above structure, the light beam incident on the transparent plastic rod 3 from the light emitting diode 21 is refracted and reflected by the groove 4 at the groove 4 and radiated to the outside. And the light effect is increased. Of course, the reflection and refraction of the light beam are based on a large difference between the refractive index of the transparent plastic rod 3 and the refractive index of air.

Means for engraving the groove on the surface is effective when the light emitting stick 60 is used for a command rod, a penlight, a toy, or the like. When used by immersion, there is almost no reflection and refraction of the light beam in the groove 4 and no light is emitted to the outside, which poses a problem. That is, since the refractive index of the transparent plastic rod 3 and that of the liquid typified by water are substantially the same and the liquid is filled by filling the groove 4 at the time of use, the groove 4 has no meaning as a reflection surface or a refraction surface. It will be.

Therefore, as a third means, as shown in FIG. 5, a housing-side portion 3 'having a tapered tip 8 in which a groove 4 is engraved with respect to the transparent plastic rod 3 is provided.
And a distal end portion 7 which is fitted to the distal end portion 8 of the housing side portion 3 'in a watertight manner.

According to the above configuration, the transparent plastic rod 3
The light beam traveling straight through the inside of the groove 4
a, 4b, 4c, and 4d, the light is reflected and refracted, and an appropriate amount is diffused to the outside. Here, it is important that the slight space existing in the grooves 4a, 4b, 4c, and 4d does not come into contact with the liquid, and the presence of air serves for reflection and refraction.

As described above, the configuration of the tapered tip portion 8 in which the groove 4 shown in FIG. 5 is engraved in the transparent plastic rod 3 is described. The configuration in which the grooves 4 are gradually engraved is also effective for general products as an improvement in the second means.

As means for realizing the light emitting stick 60, a housing containing the pulse lighting control circuit 22, the vibration sensor 24, and the button battery 28 is attached to one end of the cylindrical stick. At the same time, a wiring cord may be led out from the inside to the other end of the cylindrical stick, and the light emitting diode 21 connected thereto may be disposed at the end. However, in the above configuration, since only the tip of the cylindrical stick emits light, a relatively simple light effect is obtained, and when a transparent member is not used, it can be applied to, for example, a toy.

By the way, the above-mentioned light emitting stick 60 has a circuit configured to emit light whenever vibration is applied, and a power switch for preventing operation even when vibration is applied when not in use is included in the components. I didn't. It is generally required that the light emission and blinking device 50 be very small, and there is no room for newly disposing a button switch or the like. However, it is desirable to avoid unnecessary consumption of the button battery 28.

In this regard, as shown in FIG.
Of the button battery 28 with the pulse lighting control circuit 22 by providing the slit 2 on the side surface of the electrode plate and making the insulating plate piece 9 detachable from the slit 2 into the housing 1. A switch mechanism for turning ON / OFF by conduction / insulation of the contact portion 42 is newly added.

The above switch mechanism is simple and does not need to be newly provided on the printed circuit board 29, and can be easily attached to the small casing 1 as shown in FIG.

It should be noted that the shape of the tip 3b of the transparent plastic bar 3 of the light emitting stick 60 according to the present invention is not limited to a simple radius as shown in FIG. It may be deformed into a shape or the like. The shape of the housing 1 is not limited to the shape shown in FIG. 1 in a plan view, but may be any shape. For example, what is used as a mudler will attract attention in terms of design when the housing 1 has a whiskey bottle shape, and it is preferable to design an animal character such as a panda as a toy such as a penlight.

[0037]

As is clear from the above description, the light emitting stick of the present invention exhibits the following excellent effects.

(1) The light emitting diode automatically flashes and flashes by switching by the vibration sensor, so that a light effect effect according to the movement can be obtained.

(2) In particular, by forming grooves on the surface of the transparent plastic rod, not only the tip part but also various parts of the transparent plastic rod can be made to emit light and blink, and a further light effect can be obtained.

(3) Further, light emission is diffused by the satin finish treatment of the tip of the transparent plastic rod, and the light effect at the tip is enhanced.

(4) Since the DC power switch mechanism can be provided without securing a new installation place, useless power consumption can be prevented.

(5) Further, since the tapered portion is provided with a groove and is watertight, even if it is used as a mudler, the light effect of the transparent plastic rod is not attenuated.

[Brief description of the drawings]

FIG. 1 is a diagram showing an appearance (a plan view shape and a side view shape) of a mudler which is an application example of the light emitting stick according to the present invention.

FIGS. 2A and 2B are a plan view and a side view for explaining the structure of a light-emitting flashing device provided in the light-emitting stick according to the present invention.

FIG. 3 is a circuit block diagram of a light emission blinking device according to the present invention.

FIG. 4 is a partially enlarged view showing an example of an optical path of the light emitting stick according to the present invention.

FIG. 5 is a partially enlarged view illustrating the shape of the tip of the light emitting stick according to the present invention and the means of reflection and refraction.

FIG. 6 is a cross-sectional view for explaining a structure of a vibration sensor.

[Explanation of symbols]

 REFERENCE SIGNS LIST 1 housing 2 slit 3 transparent plastic rod 3 ′ housing side portion having tapered tip 4 groove 7 tip side 9 insulating plate piece 21 light emitting diode 22 pulse lighting control circuit 23 IC chip 24 vibration sensor 25 conductive metal container 26 Plate Electrode 27 Conductive Metal Ball 28 Button Battery 29 Printed Circuit Board 35 Upper Hemispherical Cover 36 Lower Cylindrical Part 37 Lower End Flange 38 Seal Seal 41, 42 Electrode Plate Surface 50 Light Emitting Flashing Device 60 Light Emitting Stick

Claims (6)

[Claims] 1. A housing containing a light emitting diode, a pulse lighting control circuit for controlling blinking of the light emitting diode, a vibration sensor for sensing and switching vibration, and a DC power supply, is provided at one end of a transparent plastic rod. A light-emitting stick attached to the light-emitting diode so that a light-emitting portion of the light-emitting diode is positioned at a tip end surface of the transparent plastic rod. 2. The luminescent stick according to claim 1, wherein a matte finish is applied to a tip of the transparent plastic rod opposite to an end to which the housing is attached. 3. The luminescent stick according to claim 1, wherein a groove is formed on a surface of the transparent plastic rod. 4. The transparent plastic rod comprises: a housing side portion having a tapered tip portion formed with a groove; and a tip side portion which is fitted to the tip portion of the housing side portion in a watertight manner. The light emitting stick according to claim 1, wherein the light emitting stick is a light emitting stick. 5. A housing containing a pulse lighting control circuit for controlling blinking of a light emitting diode, a vibration sensor for sensing and switching vibration, and a DC power supply, is attached to one end of a cylindrical stick, A light-emitting stick, wherein a wiring cord is led out from the inside to the other end of the stick, and a light-emitting diode connected to the wiring cord is arranged at the end. 6. A switch mechanism for turning on / off conduction of the DC power supply to the pulse lighting control circuit by providing a slit on a side surface of the housing and inserting and removing an insulating plate piece from the slit into the housing. A light emitting stick according to any one of claims 1 to 5, wherein the light emitting stick has a structured structure.