JPS60189102A - Lamp apparatus for bicycle - Google Patents
Lamp apparatus for bicycleInfo
- Publication number
- JPS60189102A JPS60189102A JP59043413A JP4341384A JPS60189102A JP S60189102 A JPS60189102 A JP S60189102A JP 59043413 A JP59043413 A JP 59043413A JP 4341384 A JP4341384 A JP 4341384A JP S60189102 A JPS60189102 A JP S60189102A
- Authority
- JP
- Japan
- Prior art keywords
- bicycle
- light source
- light
- revolution
- reflected
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 238000010586 diagram Methods 0.000 description 3
- 238000005286 illumination Methods 0.000 description 3
Landscapes
- Non-Portable Lighting Devices Or Systems Thereof (AREA)
Abstract
(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.
Description
【発明の詳細な説明】
産業上の利用分野
本発明は自転車に数個けられ、その前方を照射する自転
車用灯器に関するものである。DETAILED DESCRIPTION OF THE INVENTION FIELD OF INDUSTRIAL APPLICATION The present invention relates to a bicycle lamp that is mounted on a bicycle and illuminates the front of the bicycle.
従来例の構成とその問題点
一般に自転車の夜間走行において、光源から照射される
光が広い範囲を照らすことは安全走行上重要なことであ
り、そのため、従来においては。Conventional configuration and its problems Generally, when riding a bicycle at night, it is important for safe riding that the light emitted from the light source illuminates a wide range.
第１図に示すように、反射鏡を大きくした１灯の前照灯
１を用いたり、また第２図に示すように２灯の前照灯２
．３を用いたりしていた。しかしながら、１灯の前照灯
１の場合は、自転車とのデザインの関係て反射鏡の大き
さを矢きくするのには限界があり、また２灯の前照灯２
．３の場合は、１灯の前照灯１に比べ、光源等の部品が
２倍必要であり、かつ組立工数も２倍となって、コスト
面で高価なものとなっていた。まだこれらの前照灯は前
方照射を主としていたため、側方への投光は若干の拡散
光程度であり、したがって側方からの進行者、たとえば
交差点での車の運転車等から自転車を確認し忙くいもの
であった。As shown in Fig. 1, a single headlamp 1 with a large reflector is used, or as shown in Fig. 2, two headlights 2 are used.
．． 3 was used. However, in the case of one headlight 1, there is a limit to the size of the reflector due to its design with the bicycle, and two headlights 2
．． In the case of No. 3, compared to the single headlamp 1, twice as many parts such as a light source are required, and the number of assembly steps is also twice, making it expensive in terms of cost. Since these headlights were still mainly used to illuminate the front, the light emitted to the sides was only slightly diffused light, making it difficult for people traveling from the side, such as cars driving at intersections, to see the bicycle. It was a busy time.
発明の目的
本発明は上記従来の問題点に鑑み、１つの光源で広範囲
の照射が行なえ、かつ側方かもの進行者からも自転車を
確認しゃすく々る自転車用灯器を提供することを目的と
する。Purpose of the Invention In view of the above-mentioned conventional problems, an object of the present invention is to provide a bicycle lamp that can illuminate a wide area with a single light source and that allows bicycles to be clearly seen even from people walking on the side. shall be.
発明の構成
上記目的を達成するために本発明は、１つの光源と、こ
の光源から照射される光を反射させる反射鏡とを有し、
前記反射鏡に、焦点位置が一点に一致する複数の回転放
物曲面を形成し、かつ前記焦点に１つの光源を位置させ
たもので、この構成によれば、１つの光源で複数Ｑ集中
照射が可能となり、その結果、広範囲の照射が行なえる
だめ、１灯の前照灯の部品数で２灯の前照灯以上の効果
を発揮することができ、また前記複数の回転放物曲面に
よりそれぞれ集光される照射光はお互いの側方′を照射
するだめ、側方からの進行者からの自転車の確認も確実
に行なうことができ、その結果、自転車の安全走行が行
なえるものである〇実施例の説明
以下、本発明の一実施例を第３図〜第６図にもとづいて
説明する。第３図において、１１は自転車１２の前方に
取付けられた前照灯で、この前照灯１１は第４図に示す
ように、光源１３と、この光源１３から照射される光を
反射させる反射鏡１４とを有し、前記反射鏡１４には、
焦点位置が一点に一致する複数の回転放物曲面１５，１
６゜１了を形成している。また前記光源１３は回転放物
曲面１６と対向するように位置させている。そしてまた
回転放物曲面１６の回転軸と回転放物曲面１６の回転軸
は焦点ｆを交点として角度αをなして交わっている。そ
れと同様一回転放物曲面１了も前記同一交点に焦点ｆを
位置させている。Structure of the Invention In order to achieve the above object, the present invention includes one light source and a reflecting mirror that reflects the light emitted from the light source,
The reflecting mirror is formed with a plurality of parabolic curved surfaces of revolution whose focal positions coincide with one point, and one light source is positioned at the focal point. According to this configuration, multiple Q concentrated irradiation can be performed with one light source. As a result, a wide range of irradiation can be performed, and the number of parts for one headlight can be more effective than two headlights, and the plurality of rotating parabolic curved surfaces Since the respective focused irradiation lights illuminate the sides of each other, the bicycle can be reliably confirmed by the person traveling from the side, and as a result, the bicycle can be ridden safely. 〇Description of Embodiment An embodiment of the present invention will be described below with reference to FIGS. 3 to 6. In FIG. 3, reference numeral 11 denotes a headlamp attached to the front of a bicycle 12, and as shown in FIG. a mirror 14, and the reflecting mirror 14 includes:
A plurality of parabolic curved surfaces 15, 1 of revolution whose focal positions coincide with one point
6゜1Ryo is formed. Further, the light source 13 is positioned so as to face the parabolic curved surface 16 of revolution. Furthermore, the rotation axis of the paraboloid of revolution surface 16 and the rotation axis of the paraboloid of revolution surface 16 intersect at an angle α with the focal point f as the intersection point. Similarly, the one revolution parabolic curved surface 1 has its focal point f located at the same intersection.
上記のように形成された反射鏡１４の光線の範囲を説明
すると、第４図の回転放物曲面１５で反射された反射光
は第６図の（イ）で囲まれた範囲内にあり、まだ第４図
の回転放物曲面１６で反射された反射光は角度αの傾き
をもち、第６図の（ロ）で示された右半分の範囲内にあ
り、さらに第４図の回転放物曲面１７で反射された反射
光は角度αの傾きをもち、第６図の（・つで示された左
半分の範囲内にある。したがって、これらの反射光は１
回転放物曲面１５で反射されて前方に直進する平行光線
と、回転放物曲面１６で反射され、右の方にαの角度を
もつ平行光線と、回転放物曲面１７で反射され、左の方
にαの角度をもつ平行光線とよりなるため、第３図に示
すように拡大された光線となり、その結果、１つの光源
１３で広範囲の照射が可能となり、かつその照射光りは
お互いに側方を１足止
照射するため、側方からの進行者からも自転車の確実に
行なうことができるものである。To explain the range of the light beam of the reflecting mirror 14 formed as described above, the reflected light reflected by the parabolic curved surface 15 of revolution in FIG. 4 is within the range surrounded by (a) in FIG. The reflected light reflected by the parabolic curved surface 16 of FIG. 4 still has an inclination of angle α and is within the right half range shown in FIG. The reflected light reflected by the object surface 17 has an inclination of angle α and is within the left half range indicated by ( in Fig. 6. Therefore, these reflected lights
A parallel ray that is reflected by the paraboloid of revolution 15 and goes straight forward, a parallel ray that is reflected by the paraboloid of revolution 16 and moves to the right at an angle α, and a parallel ray that is reflected by the paraboloid of revolution 17 and goes straight to the left. Since it consists of parallel light rays with an angle α in the direction, the light rays are enlarged as shown in Fig. 3. As a result, it is possible to irradiate a wide range with one light source 13, and the irradiated light is on the side of each other. Since the beam is illuminated at one stop, even cyclists coming from the side can reliably follow the direction of the bicycle.
発明の効果
以上のように本発明によれば、１つの光源と、この光源
から照射される光を反射させる反射鏡とを有し、前記反
射鏡に、焦点位置が一点に一致する複数の回転放物曲面
を形成し、かつ前記焦点に１つの光源を位置させている
ため、１つの光源で複数の集中照射が可能となり、その
結果、広範囲の照射が行なえるため、１灯の前照灯の部
品数で２灯の前照灯以上の効果を発揮することができ、
壕だ前記複数の回転放物曲面によりそれぞれ集光される
照射光はお互いの側方を照射するため、側方からの進行
者からの自転車の確認も確実に行なうことができ、その
結果、自転車の安全走行が行なえるものである。Effects of the Invention As described above, the present invention includes one light source and a reflecting mirror that reflects the light emitted from the light source, and the reflecting mirror has a plurality of rotations whose focal point coincides with one point. Since it forms a parabolic curved surface and one light source is located at the focal point, it is possible to irradiate multiple areas with one light source. With the number of parts, it can be more effective than two headlights,
Since the irradiated light condensed by the plurality of rotating paraboloids illuminates each other's sides, bicycles can be reliably confirmed by cyclists coming from the side. This allows for safe driving.
第１図および第２図は従来の自転車用灯器の照射状態を
示す図、第３図は本発明の一実施例における自転車用灯
器の照射状態を示す図、第４図は同灯器における反射鏡
の横断面図、第６図は第４図のＡ−Ａ線断面図である。
１３・・・・・・光源、１４・・・・・・反射鏡％ １
．６．．１６゜１７・・・・・・複数の回転放物曲面、
ｆ・・・・・・焦点。
代理人の氏名 弁理士 中 尾 敏 男 ほか１名第
ｌ タ１ 第 ２ 図 第 ４1 and 2 are diagrams showing the illumination state of a conventional bicycle light device, FIG. 3 is a diagram showing the illumination state of a bicycle light device according to an embodiment of the present invention, and FIG. 4 is a diagram showing the illumination state of the bicycle light device according to an embodiment of the present invention. FIG. 6 is a cross-sectional view taken along line A--A in FIG. 4. 13...Light source, 14...Reflector% 1
．． 6. ．． 16°17... Multiple paraboloids of revolution,
f...Focus. Name of agent: Patent attorney Toshio Nakao and 1 other person
Figure 1 Figure 4
Claims (1)
反射鏡とを有し、前記反射鏡に焦点位置が一点に一致す
る複数の回転放物曲面を形成しかつ前記焦点に１つの光
源を位置させてなる自転車用灯器。It has one light source and a reflecting mirror that reflects the light irradiated from the light source, the reflecting mirror forms a plurality of paraboloids of revolution whose focal point coincides with one point, and the one light source is placed at the focal point. A bicycle light fixture that can be positioned.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP59043413A JPS60189102A (en) | 1984-03-07 | 1984-03-07 | Lamp apparatus for bicycle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP59043413A JPS60189102A (en) | 1984-03-07 | 1984-03-07 | Lamp apparatus for bicycle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS60189102A true JPS60189102A (en) | 1985-09-26 |
Family
ID=12663039
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP59043413A Pending JPS60189102A (en) | 1984-03-07 | 1984-03-07 | Lamp apparatus for bicycle |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS60189102A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6284104U (en) * | 1985-11-15 | 1987-05-29 | ||
| JP2006111153A (en) * | 2004-10-15 | 2006-04-27 | Matsushita Electric Ind Co Ltd | Led headlight for bicycle |
-
1984
- 1984-03-07 JP JP59043413A patent/JPS60189102A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6284104U (en) * | 1985-11-15 | 1987-05-29 | ||
| JP2006111153A (en) * | 2004-10-15 | 2006-04-27 | Matsushita Electric Ind Co Ltd | Led headlight for bicycle |
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