JPH0349990Y2 - - Google Patents

Description

[Detailed Description of the Invention] (Industrial Application Field) The present invention relates to a bicycle lighting device that is attached to the front of a bicycle and illuminates the road surface.

(Prior Art) As shown in Fig. 2, a bicycle lighting device is composed of a dynamo 1, a headlight 2 attached to the front of the dynamo 1, and a lifting device 3 with a built-in spring. There is.

Therefore, when the lever 4 of the lifting device 3 is pushed down, the dynamo 1 rotates by a predetermined angle around the spindle 5, and the roller 6 at the tip moves against the front wheel of the bicycle (not shown).
The roller 6 is rotated by the rotation of the front wheel, and the headlight 2 is turned on.

(Problems to be Solved by the Invention) However, with the above-mentioned conventional product, there is a risk that the lighting device will be damaged by the impact when the bicycle falls or collides. Further, although the headlight 2 is attached to the front of the dynamo 1 with screws, there is a drawback that rainwater or the like may enter through this connection and rust may occur inside the headlight 2.

One possible way to prevent this is to cover the lighting device from above, but if you attach the headlight to the dynamo after fitting the cover,
This pressing force may push the cover upward, causing it to loosen or fall off.

The present invention was devised in view of the above circumstances, and its purpose is to effectively protect various parts such as headlights from external shocks and water intrusion, and to ensure that the protective cover is securely fixed to the dynamo. An object of the present invention is to provide a lighting device for a bicycle.

(Means for Solving the Problems) In order to achieve the above object, the present invention includes a dynamo arranged so as to be able to come into contact with the front wheels, a headlight installed in front of the dynamo, and a dynamo mounted on the front wheels. In the bicycle lighting device, the dynamo, the headlight, and the tilting device are covered with an integrated cover, and corresponding parts on the upper part of the body of the dynamo and on the inner surface of the cover are respectively An engaging portion consisting of an annular protrusion and a groove for receiving the annular protrusion is provided.

(Function) According to the bicycle lighting device of the present invention, the cover alleviates the impact acting on the lighting device, and the cover also prevents rainwater, dust, etc. from entering. Moreover, the cover is reliably fixed by the engaging portions of the dynamo and the cover being engaged with each other. Further, since these engaging portions are formed in an annular shape above the body of the dynamo, the engaging portions reliably prevent rainwater from entering.

(Example) FIG. 1 is a side view of a bicycle lighting device to which the present invention is applied, and FIG. 3 is an exploded side view thereof.

This lighting device includes a dynamo 10, a headlamp 11,
It is composed of a lifting device 12 and a protective cover 13. The dynamo 10 is attached to a bicycle (not shown) so as to be rotatable by a predetermined angle around a support shaft 14 (FIG. 3).
A roller cap 15 is press-fitted onto the upper end roller (see FIG. 2). This roller cap 15 is designed to be able to rotate together with an internal rotor.

A mounting shaft 16 protrudes from the front of the dynamo 10, as shown in FIG.
1 are screwed together. The headlight 11 illuminates the front of the bicycle during night riding, and the end of a lead wire 17 extending from the lower end of the dynamo 10 is connected to the rear of the headlight 11.

A tilting device 12 is provided behind the dynamo 10, and the tilting device 12 includes a spring 18 that biases the dynamo 10 toward the front wheels, and a spring 18 that blocks and releases the biasing force of the spring 18. It has a lever 19 to Therefore, when the lever 19 is pushed down, the dynamo 10 is moved toward the support shaft 1 by the biasing force of the spring 18.
4, and the roller cap 15 at the tip comes into contact with the front wheel.

As can be seen from FIG. 3, the protective cover 13 has a mounting hole 20 that fits into the body of the dynamo 10, an opening 21 that fits above the lifting device 12, and a receiving portion for the headlight 11. It has a bellows-shaped extensible part 22, which is integrally molded from resin or rubber. Further, in the lower center of the elastic part 22, a fifth
As shown in the figure, a notch 23 is formed through which the mounting shaft 16 of the dynamo 10 can pass.

Furthermore, an annular protrusion 24 protruding inward is formed integrally with the protective cover 13 on the inner surface of the mounting hole 20, and is located at a corresponding position of the dynamo 10.
An annular groove 25 for receiving the annular protrusion 24 is formed above the body.

The bicycle lighting device of this embodiment configured as described above is assembled as follows.

The dynamo 10 and the lifting device 12 are fixed in advance to the bicycle side, and a roller cap 15 is fitted above the dynamo 10. A protective cover 1 is attached to the body of this dynamo 10 as shown by the arrow in FIG.
When the mounting hole 20 of No. 3 is press-fitted, the annular protrusion 24 of the mounting hole 20 is once elastically deformed outward and then engages with the annular groove 25 of the dynamo 10.
The mounting shaft 16 of 0 is attached to the notch 23 on the protective cover side.
(FIG. 5) and is located inside the telescopic portion 22.

Next, the headlight 11 is fixed to the mounting shaft 16 of the dynamo 10 with screws as shown by the arrow. At this time,
Since the bellows portion 22 of the protective cover 13 deforms in response to the pressing force of the headlamp 11, installation can be performed without any problem even if there is a slight dimensional error. Also, when installing the headlight 11, be sure to install the protective cover 1.
An upward force (in the direction of exit) acts on 3, but
This is prevented by the engagement between the annular projection 24 and the annular groove 25.

When using the lighting device, the lever 19 is pushed down to bring the roller cap 15 portion of the dynamo 10 into contact with the front wheel of the bicycle. When you run the bicycle with this, the roller cap 15 rotates and the dynamo 10
Electric power is generated, and the headlights 11 are turned on to illuminate the road surface.

When the bicycle falls or collides with an obstacle, the protective cover 13 effectively protects the lighting device from impact. Furthermore, since the protective cover 13 is integrally formed and the annular projection 24 and the annular groove 25 engage with each other, rainwater and the like are reliably prevented from entering the interior of the lighting device. If the gap between the roller cap 15 and the protective cover 13 is made as small as possible to create an integrated appearance, the overall appearance of the lighting device will be improved.

In the above embodiment, the annular protrusion 24 was formed on the protective cover 13 and the annular groove 25 was formed on the dynamo 10, but these may be provided in reverse.

(Effects of the Invention) As explained above, according to the bicycle lighting device of the present invention, it is possible to reduce the impact acting on the lighting device, and to prevent the intrusion of rainwater, dust, etc. Further, even if a force in the direction of removal is applied to the cover, it does not easily come off, so that the cover can be reliably prevented from falling off.

[Brief explanation of the drawing]

Figure 1 is a side view of a bicycle lighting device to which the present invention is applied, Figure 2 is a side view of a conventional product, Figure 3 is an exploded side view of Figure 1, and Figure 4 shows the protective cover and dynamo. FIG. 5 is an enlarged sectional view showing the locked state, and FIG. 5 is a partial bottom view of the protective cover. 10...Dynamo, 11...Headlight, 12...
Lifting device, 13...protective cover, 14...support shaft,
16... Mounting shaft, 24... Annular projection, 25... Annular groove.

Claims (1)

[Scope of Claim for Utility Model Registration] A bicycle lighting having a dynamo arranged so as to be able to come into contact with the front wheel, a headlight installed in front of the dynamo, and a tilting device that brings the dynamo into contact with the front wheel. In the device, the dynamo, the headlight, and the tilting device are covered with an integrated cover, and the corresponding parts on the upper part of the body of the dynamo and the inner surface of the cover are each provided with an annular protrusion and a groove for receiving the engagement part. A bicycle lighting device characterized by having a section.