JPS583203Y2 - bicycle headlight - Google Patents

Description

[Detailed explanation of the idea] The present invention relates to the structure of a bicycle headlight.

Conventionally, this type of headlamp has a lamp and a reflector for reflecting the light from the lamp substantially forward in a lamp casing whose front part is made of a transparent lens. The lens is configured to irradiate the lens with reflected light from the lamp.

The light from the lamp and the light reflected by the reflecting mirror pass through the lens and illuminate the front of the bicycle.

The purpose of this invention is to provide a bicycle headlight that allows the light from the lamp to shine downward and to the rear of the lantern, thereby further promoting safe riding at night, which is in strong demand these days, and that also has aesthetic value. It is about providing.

An embodiment of the present invention will be described below based on the drawings.

1 and 2 show the main parts of the bicycle headlamp of the present invention, and the lamp casing 1 consists of a main body 2 and a lens part 3 in terms of its external appearance.

The lens portion 3 made of a light-transmissive acrylic resin or the like is extended and integrated from the front portion a to the bottom portion, and is formed as a protruding portion 3′ at a part of the lens portion 3 of the bottom portion. has been done.

Further, a lamp 6 is attached to a reflecting mirror 5 provided in the lantern casing 1 through a hole 5' provided in the center of the reflecting mirror 5, and the electrodes of the lamp 6 do not receive power from outside the lantern casing 1. It is in contact with a lead wire 7 attached to the main body 2 so as to obtain the desired result.

Note that the lamp casing 1 is attached to the bicycle 10 using a mounting bracket 4.

Therefore, the light from the lamp 6 and the light reflected by the reflecting mirror naturally brighten the lens part 3 itself, which has an integrated light transmittance from the front part a to the bottom part. It also irradiates the outside of the lantern 1.

That is, in addition to emitting light substantially forward, a portion of the light is emitted substantially along the protruding direction of the protruding portion 3' due to the protruding portion 3' provided on a portion of the bottom of the lens portion 3. It is possible to irradiate even downwards.

FIG. 3 shows another embodiment in which a cutout hole 8 is provided in a part of the side surface 5B of the reflecting mirror 5 described above.

For example, when the reflecting mirror 5 is square when viewed from the front, the reflecting mirror 5 has a spherical portion 5A that mainly reflects the light from the lamp 6 forward due to space and design considerations, and a spherical portion 5A. It has a side surface portion 5B extending substantially forward from the periphery of the side surface portion 5B.

In this case, the side surface portion 5B hardly functions to reflect the light from the lamp 6 forward.

Therefore, in the embodiment shown in FIG. 1 described above, an arrangement is made so that the light reflected by the side surface portions 5B etc. is effectively transmitted to the protrusion portion 3' provided on a portion of the lens portion 3 described above. Furthermore, if a notch hole 8 is provided in a part of the reflecting mirror 5, the light from the lamp 6 can be directly transmitted to the protruding part 3' provided in a part of the lens part 3, as shown by the arrow. It is also possible to substantially improve the illuminance downward.

FIG. 4 shows another embodiment in which the inner surface of the lantern 1 of the protruding portion 3' of the lens portion 3 in the section A of FIG. 2 is formed with a wavy surface 9 such as a concave surface.

By forming a part of the flat surface of the protrusion 3' into a waveform surface 9, the light from the lamp 6 and the light reflected by the reflecting mirror 5 are diffused by the waveform surface 9, and are substantially directed downward at the protrusion 3'. And the range of light can be expanded substantially backward.

Therefore, the light from the lamp 6 is mainly transmitted to the spherical portion 5 of the reflecting mirror 5.
A is reflected substantially forward through the front part a of the lens part 3, while the light is reflected from the side part 5B of the reflecting mirror 5, or directly from the notch 8 of the side part 5B, etc. of the lens part 3. The light is also irradiated substantially downward through the protrusion 3' provided in a portion.

In addition, by changing the shape of the protruding part 3' of the lens part 3, or by forming a waveform surface 9 on a part of the plane of the protruding part 3', it is possible to easily change the irradiation direction or the irradiation range substantially downward and substantially backward. It is also possible to change.

FIG. 5 shows a bicycle 10 actually equipped with the bicycle headlight of the present invention.

A reflector 12 for reflecting light is provided on the support shaft 11' of the front wheel 11 of the bicycle 10, and a reflector 12 is similarly attached to a portion of the pedal 13.

As a result, when the bicycle headlight is activated when riding at night, the light from the lamp 6 can be emitted substantially forward, substantially downward, and substantially backward, making the bicycle 10 stand out and making it easier to see the bicycle at night. The range is greatly increased, safety is further improved, and the front wheel 11 of the bicycle 10
．． For example, if a light-colored reflector 12 that reflects light is provided on the pedal 13 or the like, the light can be reflected not only from indirect light sources such as other vehicles but also from the own light source, further increasing safety. be able to.

As described above, the present invention not only illuminates only the front in response to increasingly serious traffic conditions, but also radiates a portion of the light substantially downward and substantially backward from the position where the headlight is installed. This not only further promotes the much-needed safe driving, but also has an extremely simple structure that has both practical and aesthetic value.

[Brief explanation of the drawing]

Figure 1 is a longitudinal sectional view showing the main parts of the bicycle headlight of the present invention;
Fig. 2 is a partially cutaway perspective view of the lantern, Fig. 3 is a vertical sectional view showing the main parts of a bicycle headlight showing another embodiment, and Fig. 4 is a partially cutaway perspective view of the lantern.
FIG. 5 is an enlarged view showing another embodiment of part A in FIG. 5, and FIG. 5 is a view showing the bicycle headlamp of the present invention actually attached to a bicycle. 1...Lantern, 2...Main body, 3...
...Lens part, a...Front part, b...Bottom part, 3'...Protrusion part, 5...Reflector,
6...Lamp, 8...Notch hole, 9.
... Waveform surface, 10 ... Bicycle, 12 ...
...Reflector.

Claims (1)

[Scope of utility model registration request] A lamp casing whose front part has a lens part includes a lamp and a reflector for irradiating light from the lamp substantially forward,
In a bicycle headlamp configured to irradiate light from the lamp reflected by the reflector onto the lens part, the lens part extends from the front part to the bottom part, and the lens part at the bottom part is extended from the front part to the bottom part. A front for a bicycle, characterized in that a protrusion is formed in a part, and a corrugated surface is formed on the inner surface of the protrusion, so that light from the lamp is irradiated partially downward and substantially to the rear. Lighting.