JPH0642946Y2 - Bicycle headlights - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION Object of the Invention [Field of Industrial Application] The present invention relates to a bicycle headlight.

[Conventional technology]

Conventionally, what is called a power generation lamp is generally used as a headlight of a bicycle. This is because a small dynamo (generator) is attached to the front hawk or rear hawk, the rollers are brought into contact with the tire side of the front or rear wheels with a presser spring, and the rollers rotate at high speed due to the rotation of the wheels. The magnet or coil is rotated to generate electricity.

In addition, this is similar to a hub dynamo lamp,
There is also an integrated headlight and dynamo.

Further, there is a battery lamp that uses a battery instead of the dynamo and is attached to the front hawk of the bicycle. (Refer to pages 871 to 876, Bicycle Practical Handbook 3rd edition, published by Japan Bicycle Industry Promotion Association).

[Problems to be solved by the device]

Among the conventional bicycle headlights described above, the power generation lamp using a small dynamo does not need to worry about battery exhaustion, and thus can be run at night for a long time. However, this is because you can not illuminate other places while you are parked or away from the bicycle, so you need to carry a battery lamp separately, even if you want to reduce your luggage as much as possible. I won't.

On the other hand, a battery lamp that uses an internal battery can be removed from the bicycle and used to illuminate other locations. However, if it is lit, it will be dark for about 2 hours and you will not be able to run at night, so you always had to worry about battery drain.

The present invention is intended to solve the problem of the conventional bicycle headlight. That is, the purpose of the present invention is to enable long-time night driving without worrying about battery consumption, and to remove other bulky lamps to illuminate other places when necessary without carrying a separate bulky lamp. It is to provide a bicycle headlight that can be used.

Configuration of the Invention [Means for Solving the Problems] A bicycle headlight according to the present invention comprises a small dynamo (1) mountable to a front hawk and a battery lamp (2) having a battery (3) installed therein. The battery lamp (2) can be used as the lamp part (4) for the small dynamo (1) or the lamp part (4) for the battery (3), and can be freely attached to and detached from the small dynamo (1) side. The electrical connection parts (5) and (6) are provided, and when the battery lamp (2) is attached to the small dynamo (1) side, the circuit with the dynamo (1) side is turned on and the other battery lamp (2) is turned on. It is provided with a switch (7) for turning on the circuit with the internal battery (3) at the time of detachment.

In the above structure, the battery lamp (2) may be mounted on the small dynamo (1) directly or on the small dynamo (1) side connecting member (8).
You may install through.

The battery lamp (2) is preferably small, for example, having two to four AA batteries. The battery may be an ordinary dry battery, but a rechargeable secondary battery may be used.

The switch (7) is, for example, a slide type switch, and one side turns on the circuit to the small dynamo (1) side, the other side turns on the circuit to the battery lamp (2) side, and the center turns off. You can leave it. However, not limited to this, when the battery lamp (2) is attached to the small dynamo (1) side, the circuit to the small dynamo (1) side automatically turns on, and when removed, the circuit to the battery lamp (2) side turns on. Therefore, the electrical connections (5) and (6) may be used as the switch (6).

In the figure, (9) is a small dynamo mounting member for a hawk foot (not shown).

[Action]

The bicycle headlight having the above-described configuration may be used as follows.

i) First, when the bicycle is run at night, the battery lamp (2) is electrically connected to the small dynamo (1) side by the electrical connection (5).
It is mounted via (6) and the switch (7) turns on the circuit to the small dynamo (1) side.

When running in this state, the electric current generated by the small dynamo (1) due to the rotation of the tire or the hub passes through the electrical connections (5) (6) and the switch (7) to the battery lamp (2).
To the lamp section (4), and lights up to illuminate the front.

In this usage state, since the lighting is performed by the small dynamo (1) for power generation, there is no need to worry about battery consumption even during long night driving.

ii) Next, when it is desired to illuminate the bicycle with the bicycle stopped or to illuminate another place away from the bicycle, the battery lamp (2) is connected from the small dynamo (1) side to the electrical connection portion (5).
The switch (7) turns on the circuit to the battery lamp (2) side while the switch is removed at (6).

In this state, the current from the internal battery (3) flows through the switch (7) to the lamp part (4) of the battery lamp (2), and is turned on. So you can bring it with you and illuminate the field or other places where you need it.

iii) When leaving the bicycle at night, the battery lamp (2) should be removed and carried. When the bicycle is traveling during the daytime or when leaving the bicycle, the battery lamp (2) switch (7) may be turned off or removed.

〔Example〕

1 to 3, the connecting member (8) is made of an insulating material, the electrical connection portion (5) on the small dynamo (1) side is formed in a convex shape, and the electrical connection portion on the battery lamp (2) side is formed. (6) is concave.

In FIG. 4, the connecting member (8) is made of metal, the electric connecting portion (5) is formed in a concave shape, and the electric connecting portion (6) on the battery lamp (2) side is formed in a convex shape.

The switch (7) turns on the circuit to the small dynamo (1) side on one side and the circuit to the battery lamp (2) side on the other side.
It is a slide type that is turned on and the center is turned off.

Effect of the Invention As is clear from the above, the headlight of the bicycle according to the present invention is
It can be run for a long time at night without worrying about battery consumption, and can be used to illuminate other places by removing a bulky lamp as needed without carrying it separately.

That is, in the conventional bicycle headlamp, the battery lamp becomes dark in about 2 hours. Therefore, it was always necessary to worry about battery consumption. Also, the power lamp cannot illuminate when the bicycle is stopped or in other places away from the bicycle. Therefore, it is necessary to carry a battery lamp separately, although it is bulky for traveling by bicycle.

On the other hand, in the bicycle headlight according to the present invention, when the bicycle is traveling at night, the lamp portion of the battery lamp can be turned on by the small dynamo if the battery lamp is mounted on the small dynamo side. Therefore, without worrying about battery drain,
You can run a bicycle for a long time at night.

Further, when the user wants to illuminate the bicycle with the bicycle stopped or to illuminate another place away from the bicycle, the battery lamp can be removed from the small dynamo side and carried. With this, the battery lamp lights up with the internal battery, so it is possible to freely illuminate the outdoors or other necessary places without bringing a portable lamp.

When the user leaves the bicycle, the battery lamp can be removed so that theft can be prevented.

[Brief description of drawings]

FIG. 1 shows an embodiment of a headlight of a bicycle according to the present invention. FIG. 1 is a perspective view when a battery lamp is mounted on a small dynamo side, and FIG. 2 is a perspective view of a small dynamo when the battery lamp is detached. FIGS. 3 and 3 are perspective views from below the battery lamp, FIG. 4 is another embodiment having different electrical connection parts, and is a partially cutaway rear view immediately before mounting the battery lamp, and FIG. It is an explanatory view of a circuit. Drawing symbol (1) …… Small dynamo, (2) …… Battery lamp (3) …… Battery, (4) …… Lamp part (5) …… Electrical connection part, (6) …… Electrical connection part (7) …… Switch, (8) …… Connecting member (9) …… Small dynamo mounting member

Claims (1)

[Scope of utility model registration request] 1. A small dynamo (1) attachable to a front hawk.
And a battery lamp (2) containing a battery (3), wherein the battery lamp (2) is a lamp part (4) for the small dynamo (1) or a lamp part (4) for the battery (3). In order to be able to use the battery as a battery lamp (2) on the small dynamo (1) side, a battery lamp (2) is attached to and detached from the small dynamo (1) side. ) Side, and a switch (7) for turning on the circuit with the internal battery (3) when the battery lamp (2) is disconnected while the battery lamp (2) is turned on.