JPH0618487Y2 - Cane with luminous function - Google Patents

Description

[Detailed Description of the Invention] [Industrial field of application] The present invention relates to a walking stick used to assist walking,
The present invention relates to a walking stick with a light emitting function, which is provided with a light emitting portion that emits light when energized and a switch that switches the light emitting portion to an energized state.

[Conventional technology]

This type of cane with a light emitting function is intended to prevent the occurrence of traffic accidents by displaying the walking position of the user with a light emitting unit in advance on night roads, etc. Generally, the display lamp is configured to be turned on or off by a switch that is manually turned on and off, and a battery is generally used as a power source of the display lamp.

Such a cane with a light emitting function has a drawback that it is troublesome to handle because it needs to be replaced with a new battery when the battery is exhausted, or needs to be charged separately when the battery is a storage battery.
Moreover, if the display lamp is unnecessarily turned on in a brightly illuminated place during the daytime or at night, the battery will be wasted and need to be replaced or charged early. In the place, it is required to operate the switch frequently so as to turn on the light, which is troublesome to operate the switch, and there is a drawback that the switch may be forgotten or forgotten.

In order to eliminate such a defect, conventionally, for example,
An assembly in which a battery and a light-emitting body are connected via a blinking electronic circuit that operates in accordance with a decrease in ambient illuminance is mounted inside the cane (see, for example, Japanese Utility Model Laid-Open No. 57-128827).

[Problems to be solved by the device]

In the conventional cane with a light emitting function described above, a switch is used to eliminate unnecessary light emission in a bright place by a combination of an on / off operation by holding the cane and an on / off operation by the ambient illuminance, instead of an artificial switching operation. This is useful in that it can eliminate forgetting to put in and forgetting to cut.

However, in order to obtain such a function, with this conventional structure, it is necessary to provide a sensor for detecting the ambient brightness and a hole for guiding the external light to the sensor on the cane. The increase in man-hours and the increase in the number of parts were inevitable. Moreover, the sensor itself consumes electric power in addition to the light emitting unit, which is also disadvantageous in that more energy is lost.

In addition, since the battery is the same as the conventional one, the weight of the entire cane, albeit a little, can be increased by increasing the battery capacity in consideration of the power consumption of the sensor and the weight of the sensor-related equipment. There was also a risk that the volume would increase.

The purpose of the present invention is to devise a mechanism for energizing the light-emitting portion so that the battery can be used for a long time without changing the battery or charging separately, and the battery is not wasted without complicated switch operation. It is to provide a cane with a light emitting function that can prevent consumption.

[Means for Solving the Problems]

A characteristic configuration of the present invention for achieving the above object is a cane provided with a light emitting portion that emits light when energized and a switch that switches the light emitting portion to an energized state. A storage battery for energizing the light emitting unit.

B. A solar cell for charging the storage battery.

C. An energization blocking circuit that detects an electromotive force of a certain value or more of the solar cell and blocks energization from the storage battery to the light emitting unit based on the detection result.

The point is that the above A, B, and C are provided.

[Action]

The effect of taking the above technical means is as follows.

a. With the configurations of A and B, it is easy to secure the power supply required for energizing the light emitting unit by using the battery in a bright place or placing it in a bright place without requiring a special operation for the battery.

b. With the configuration of C, it is possible to energize the light emitting unit in a bright place without manually operating the switch in a bright place without requiring a sensor for detecting the brightness and a hole processing for guiding the light of the outside world to the sensor. Be blocked.

[Effect of device]

I. Due to the action of a, the battery can be used for a long period of time without being replaced, and it is not necessary to equip a large number of heavy dry batteries as a power source. Can be configured without
Moreover, it does not require the trouble of removing the battery and charging the battery separately, and in practical use, a cane with a light emitting function was obtained.

B. By the action of the above-mentioned b, it is possible to prevent the wasteful consumption of the battery without requiring a complicated switch operation, and it is possible to omit the relatively expensive sensor for detecting the brightness and, moreover, guide the light to the sensor. Therefore, it is possible to omit the hole processing for the above, and it is possible to obtain an effective effect for cost reduction as a whole.

C. Further, since the electromotive force of the solar cell operated based on the brightness of the outside world can be used as a means for judging the brightness of the outside world, the surrounding brightness can be judged without using a sensor. Therefore, there is an advantage that extra effective power consumption is not generated due to the operation of the sensor itself, and the effective use time can be set longer by that amount.

D. The cane according to claim 2 is provided in a state where the switch is switched and held to the energizing side in a posture of gripping the grip portion of the cane. Therefore, when the cane is used, the switch is unconsciously switched to the energizing side. It is switched and held, and since the action of b prevents the energization of the light emitting portion in a bright place,
It is possible to prevent wasteful consumption of the battery even though the switch is switched and held on the energizing side.

〔Example〕

FIG. 1 shows a cane according to the present invention, which is made of rubber (1)
The cylindrical transparent case (3) is fitted to the aluminum pipe column (2) on which the L-shaped resin handle (4) equipped with the hanging string (4b) is transparent. Installed in 3).

In the transparent case (3), a silicon solar cell element (5a) that constitutes a solar cell (5) and a red light emitting diode (6) as an example of a light emitting portion that emits light when energized are embedded, and a light emitting diode ( A light diffusing lens (7) for diffusely reflecting the light from the light emitting diode (6) to enhance visibility is provided on each of the peripheral portion of 6) and the bottom of the transparent case (3).

A nickel-cadmium battery (8) as an example of a storage battery for energizing the light emitting diode (6) is installed inside the grip portion (4a) of the handle (4), and the power of the solar cell (5) is superpowered. Connected to be charged.

A switch (SW1) is provided on the lower surface of the grip portion (4a), which is switched and held on the side of energizing the light emitting diode (6) in a posture of gripping the grip portion (4a) with a hand when using the cane. , This switch (SW1) is urged to switch to the non-conducting side when the hand is released.

FIG. 2 shows a connection circuit of a solar cell (5), a storage battery (8) and a light emitting diode (6) as a light emitting part.
(6) is connected to the storage battery (8) via the switch (SW1) and transistor (Tr), and the solar cell (5) is connected to the storage battery (8) via the Schottky diode (9). , A short circuit (A) as an energization blocking circuit that detects an electromotive force of a certain value or more of the solar cell (5) and blocks energization from the storage battery (8) to the light emitting diode (6) based on the detection result.
And a bistable multivibrator circuit (B) for blinking the light emitting diode (6).

Then, when the switch (SW1) is switched to the energizing side, if the solar cell (5) is generating an electromotive force above a certain value determined by the resistance (R1) and the resistance (R2), the high-level signal will shift. The low level signal is input to the circuit (A), the low level signal is input to the bistable multivibrator circuit (B) from the summit circuit (A), and the low level signal is input to the transistor (Tr) from the bistable multivibrator circuit (B). Being a light emitting diode
Power to (6) is blocked.

When the switch (SW1) is switched to the energized side and the solar cell (5) is generating an electromotive force below the certain value, a low level signal is input to the summit circuit (A), and the summit circuit (A). The high-level signal from (A) is input to the bistable multi-vibrator circuit (B), and the bistable multi-vibrator circuit
A high level signal and a low level signal are alternately input to the transistor (Tr) from (B), and the light emitting diode (6) blinks.

(SW2) is a warning buzzer switch attached to the handle (4).
Is configured to emit a warning sound.

[Another embodiment]

I. The configuration of the light emitting unit is not limited to the light emitting diode, and may be a miniature electric bulb, for example.

B. The storage battery is not limited to the nickel-cadmium battery, and a known secondary battery can be used.

C. The light emitting unit may be one that blinks or one that continuously emits light.

It should be noted that reference numerals are added to the claims of the utility model for convenience of comparison with the drawings, but the present invention is not limited to the configurations of the accompanying drawings by the entry.

[Brief description of drawings]

FIG. 1 is a side view and FIG. 2 is an electric circuit diagram showing an embodiment of a cane with a light emitting function according to the present invention. (4a) …… grip part, (5) …… solar cell, (6) …… light emitting part,
(8) ... Battery, (A) ... energization prevention circuit, (SW1) ... switch.

Claims (2)

[Scope of utility model registration request] 1. A wand provided with a light emitting portion (6) which emits light when energized and a switch (SW1) for switching the light emitting portion (6) to an energized state, in order to energize the light emitting portion (6). Storage battery (8) and a solar cell for charging the storage battery (8)
(5), and an energization blocking circuit that detects the electromotive force of a certain value or more of the solar cell (5) and prevents energization from the storage battery (8) to the light emitting unit (6) based on the detection result ( A) A cane with a light emitting function, which is provided with and. 2. The switch (SW1) is a grip (4) of the cane.
The walking stick with a light emitting function according to claim 1, wherein the walking stick with a light emitting function is provided in a state where it is switched and held to the energizing side in a posture of gripping a).