JP2002005948A - Electronic weather vane - Google Patents
Electronic weather vaneInfo
- Publication number
- JP2002005948A JP2002005948A JP2000191233A JP2000191233A JP2002005948A JP 2002005948 A JP2002005948 A JP 2002005948A JP 2000191233 A JP2000191233 A JP 2000191233A JP 2000191233 A JP2000191233 A JP 2000191233A JP 2002005948 A JP2002005948 A JP 2002005948A
- Authority
- JP
- Japan
- Prior art keywords
- movable weight
- main body
- wind
- weight
- moving
- 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
Landscapes
- Indicating Or Recording The Presence, Absence, Or Direction Of Movement (AREA)
Abstract
Description
【0001】[0001]
【発明の属する技術分野】本発明は発光部ならびに発電
機構を備える電子式風見鶏に関し、特に発光電力の発生
に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an electronic weathercock having a light-emitting portion and a power generation mechanism, and more particularly to generation of light-emitting power.
【0002】[0002]
【従来の技術】風見鶏には風向を知らせる機能を備える
だけでなく、形状や色彩に工夫を凝らして建物や庭など
の外観を向上させるなど、付加価値を備えたものがあ
る。2. Description of the Related Art Some weather vanes not only have a function of informing the wind direction, but also have an added value such as improving the appearance of buildings and gardens by devising shapes and colors.
【0003】このような付加価値を備えた風見鶏とし
て、従来より、特開平10−319031号公報に示さ
れる発光部を備えた電子式風見鶏が知られている。この
風見鶏は、風車の回転により発電する回転式発電機また
は太陽電池の生じた電力により発光部を発光させ、夜間
における風向の視認を容易としている。この回転式発電
機は、相対的に回転するコイルと磁石とを備え、回転速
度すなわち風速に応じた電力を発生する。[0003] As a weathercock having such added value, an electronic weathercock having a light-emitting portion disclosed in Japanese Patent Application Laid-Open No. 10-319031 has been conventionally known. In this weathercock, the light-emitting portion emits light by electric power generated by a rotary generator or a solar cell that generates electricity by rotation of a windmill, thereby facilitating visual recognition of the wind direction at night. The rotary generator includes a relatively rotating coil and a magnet, and generates electric power according to a rotation speed, that is, a wind speed.
【0004】[0004]
【発明が解決しようとする課題】しかしながら、このよ
うな回転式発電機は、構造が複雑であるとともに重量が
重いため、この回転式発電機を備えた電子式風見鶏は、
風向の変化に対する指向応答性が悪化するという問題が
あった。However, since such a rotary generator has a complicated structure and a heavy weight, an electronic weathercock provided with the rotary generator has a problem.
There is a problem that the directional response to a change in the wind direction is deteriorated.
【0005】[0005]
【課題を解決するための手段】本願発明の電子式風見鶏
は、支持軸に回動自在に軸支される本体と、前記本体に
備えられ該本体を風向に指向させる風切部と、前記本体
に回転自在に軸支され風を受けて回転する風車と、前記
風車の回転による揺動を自在に前記本体に支持され、内
部にその揺動に伴って往復移動する移動錘を備える移動
錘ケースと、前記移動錘ケース内部の移動錘の移動端に
設けられ、移動錘ケースの揺動に伴って移動する移動錘
との衝突により電力を発生する圧電素子と、前記電力に
より発光する発光部と、を備える。An electronic weathercock according to the present invention includes a main body rotatably supported by a support shaft, a wind-off portion provided on the main body to direct the main body in a wind direction, and the main body. A wind turbine rotatably supported by the wind turbine and rotating by receiving wind, and a movable weight case having a movable weight supported by the main body so as to freely swing by the rotation of the wind turbine and internally reciprocating with the swing. A piezoelectric element that is provided at a moving end of a moving weight inside the moving weight case and generates power by collision with a moving weight that moves with the swing of the moving weight case; and a light emitting unit that emits light by the power. , Is provided.
【0006】本願発明にかかる電子式風見鶏は、風車の
回転により移動錘ケースを揺動させ、この移動錘ケース
内の移動錘が重力により圧電素子に衝突して電力が発生
するという、簡素かつ軽量な発電機構を備えるため、風
向の変化に対する指向応答性を向上することができる。The electronic weathercock according to the present invention swings the movable weight case by the rotation of the windmill, and the movable weight in the movable weight case collides with the piezoelectric element due to gravity to generate electric power. Since such a power generation mechanism is provided, the directional response to a change in the wind direction can be improved.
【0007】[0007]
【発明の実施の形態】以下、本発明の第一の実施の形態
について図面を参照しながら説明する。図1は本実施形
態にかかる電子式風見鶏の概略構成図である。DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, a first embodiment of the present invention will be described with reference to the drawings. FIG. 1 is a schematic configuration diagram of an electronic weathercock according to the present embodiment.
【0008】電子式風見鶏1は、例えば鉛直方向に延び
る支持軸12に回転自在に軸支される本体10を備え
る。本実施形態では、本体10は鳥の姿に似せて製作さ
れている。また本体10は風向に指向させる風切部11
を備え、風見鶏としての機能を果たしている。本実施形
態では、本体10の外枠11全体として風切部を構成し
ている。例えば、外枠11の空力中心が回転中心より後
方(すなわち鳥の尾側)となるよう外枠11の外形の形
状が調整され、これにより本体10の前方(すなわち鳥
の頭側)が風上側を指向する。The electronic weathercock 1 includes, for example, a main body 10 rotatably supported by a support shaft 12 extending in a vertical direction. In the present embodiment, the main body 10 is manufactured so as to resemble a bird. Further, the main body 10 is provided with a wind-off section 11 for directing in a wind direction.
It functions as a weathercock. In the present embodiment, the entire outer frame 11 of the main body 10 forms a wind-cut portion. For example, the shape of the outer shape of the outer frame 11 is adjusted so that the aerodynamic center of the outer frame 11 is behind the center of rotation (that is, the tail side of the bird), whereby the front of the main body 10 (that is, the head side of the bird) is windward. To be oriented.
【0009】また、この電子式風見鶏1は、本体10に
回転自在に軸支され風により回転する風車16を備え
る。本実施形態では、風車16は本体10の後方におい
て略鉛直面内で回転するよう構成されている。この風車
16の回転は、回転シャフト22を介して本体10の内
部に備えられる発電機構30に伝達され、この発電機構
30で発生した電力により、本体10の例えば外枠11
に設けられる発光部14例えばLEDが発光する。な
お、この発光部14は、複数例えば外枠11において左
右対称に二個設けられ、これらはそれぞれ図示しない配
線により発電機構30に並列接続される。The electronic weathercock 1 further includes a windmill 16 rotatably supported by the main body 10 and rotated by wind. In the present embodiment, the wind turbine 16 is configured to rotate in a substantially vertical plane behind the main body 10. The rotation of the wind turbine 16 is transmitted to a power generation mechanism 30 provided inside the main body 10 via a rotation shaft 22, and the power generated by the power generation mechanism 30 causes the outer frame 11 of the main body 10 to rotate.
The light emitting section 14 provided in the LED emits light. A plurality of the light emitting units 14 are provided symmetrically in the outer frame 11, for example, and two of them are connected in parallel to the power generation mechanism 30 by wiring (not shown).
【0010】図2は、本体10の内部構造を示す図であ
る。本体10の内部には、その一部としての内枠18が
設けられる。内枠18は、前後方向に細長い矩形の底板
18aと、底板18aの前端および後端にそれぞれ立設
される支持板18b,18cとを備える。これら支持板
18b,18cには、これらを縦貫して水平方向に伸び
る回転シャフト22が回転自在に支持され、この回転シ
ャフト22の後端に風車16が取り付けられる。FIG. 2 is a view showing the internal structure of the main body 10. Inside the main body 10, an inner frame 18 as a part thereof is provided. The inner frame 18 includes a rectangular bottom plate 18a which is elongated in the front-rear direction, and support plates 18b and 18c which are respectively provided upright at the front end and the rear end of the bottom plate 18a. A rotatable shaft 22 extending vertically through the supporting plates 18b and 18c is rotatably supported on the support plates 18b and 18c, and the windmill 16 is attached to a rear end of the rotatable shaft 22.
【0011】また支持板18b,18cには、回転シャ
フト22の上方にこれと並行に水平方向に伸びる揺動シ
ャフト26が回動自在に支持されている。支持板18b
の前方には、支持版18bを貫通する回転シャフト22
と揺動シャフト26との双方に回動自在に接続され、回
転シャフト22による回転を例えば上下方向の往復動に
変換し、その往復動を揺動シャフト26の所定角度内で
の往復回動すなわち揺動に変換する運動変換機構として
のリンクアーム24が備えられる。このリンクアーム2
4は、回転シャフト22には回転シャフト22の回転中
心から半径方向に距離r1だけ離間した位置で回動自在
に支持され、また揺動シャフト26には揺動シャフト2
6の回転中心から半径方向に距離r2だけ離れた位置で
回動自在に支持される。そして距離r2を距離r1に比
して大きな値に設定することにより、回転から揺動への
変換が実現される。なお、この距離r2の距離r1に対
する比を大きくするほど揺動角度は小さくなる。On the support plates 18b and 18c, a swing shaft 26 extending in a horizontal direction above the rotary shaft 22 is supported rotatably. Support plate 18b
In front of the rotary shaft 22 penetrating the support plate 18b
The swing shaft 26 is rotatably connected to both the swing shaft 26 and converts the rotation of the rotating shaft 22 into, for example, a vertical reciprocating motion. A link arm 24 is provided as a motion conversion mechanism that converts the motion into swing. This link arm 2
Numeral 4 is rotatably supported on the rotating shaft 22 at a position radially separated from the center of rotation of the rotating shaft 22 by a distance r1.
6 is rotatably supported at a position radially away from the center of rotation by a distance r2. Then, by setting the distance r2 to a value larger than the distance r1, conversion from rotation to swing is realized. The larger the ratio of the distance r2 to the distance r1, the smaller the swing angle.
【0012】図3は発電機構30の構成を示す図であ
り、以下この図を参照して本実施形態における発電の原
理について説明する。図3(a)は、重力の移動方向分
力が移動錘34に作用しない中立状態、図3(b)およ
び図3(c)は一方側および他方側に移動錘ケース32
がそれぞれ最も揺動した最大揺動状態を示す。揺動シャ
フト26には、内部に移動錘34例えば鋼球を収容する
例えば円筒状の移動錘ケース32が固定される。移動錘
ケース32は、その揺動に伴い移動錘34が重力により
一方側と他方側とに往復移動する揺動状態となるよう、
揺動シャフト26に固定される。すなわち、揺動の軸方
向と移動錘34の移動方向とが交叉(例えば垂直に交
叉)するように固定されるとともに、揺動により両方の
移動端の上下関係が逆転するように(図3(b)と図3
(c))固定される。またこの際、一方側に揺動が最大
となる状態(図3(b))と、他方側に揺動が最大とな
る状態(図3(c))とで、移動端の上下間隔dが等し
くなるようにする。例えば本実施形態では、これら二つ
の最大揺動状態における移動錘ケース32の姿勢が、揺
動中心を通る鉛直方向軸に対して互いに軸対称となるよ
う構成される。FIG. 3 is a diagram showing the configuration of the power generating mechanism 30. The principle of power generation in the present embodiment will be described below with reference to this drawing. FIG. 3A shows a neutral state in which a component in the moving direction of gravity does not act on the moving weight 34, and FIGS. 3B and 3C show moving weight cases 32 on one side and the other side.
Indicates the maximum rocking state in which each rocked the most. A movable weight 34, for example, a cylindrical movable weight case 32 that accommodates a movable weight 34, for example, a steel ball therein, is fixed to the swing shaft 26. The movable weight case 32 is in a swinging state in which the movable weight 34 is reciprocated between one side and the other side by gravity due to the swing thereof.
It is fixed to the swing shaft 26. That is, the pivoting direction and the moving direction of the movable weight 34 are fixed so as to intersect (for example, perpendicularly intersect), and the vertical relationship between the two moving ends is reversed by the oscillation (FIG. 3 ( b) and FIG.
(C)) It is fixed. At this time, the vertical distance d between the moving ends is changed between a state where the swing is maximum on one side (FIG. 3B) and a state where the swing is maximum on the other side (FIG. 3C). To be equal. For example, in the present embodiment, the posture of the movable weight case 32 in the two maximum swinging states is configured to be axially symmetric with respect to a vertical axis passing through the swing center.
【0013】移動錘ケース32には、移動錘34の例え
ば両方の移動端(本実施形態では円筒の長手方向両端部
すなわち両底部)に圧電素子36a,36bが設けられ
る。そして、図3(b)の揺動状態では移動錘34は一
端側の圧電素子36aに、図3(c)の揺動状態では移
動錘34は他端側の圧電素子36bに、それぞれ衝突す
る。In the movable weight case 32, for example, piezoelectric elements 36a and 36b are provided at both movable ends of the movable weight 34 (both ends in the longitudinal direction of the cylinder, that is, both bottoms in this embodiment). In the swinging state of FIG. 3B, the movable weight 34 collides with the piezoelectric element 36a on one end, and in the swinging state of FIG. 3C, the movable weight 34 collides with the piezoelectric element 36b on the other end. .
【0014】移動錘34の衝突により圧電素子36a,
36bは電力を発生し、この電力により圧電素子36a
および36bに図示しない配線により接続された発光部
14が発光する。衝突一回あたりの発生電力は、風車1
6の回転速度には依存せず、移動錘34の圧電素子36
a,36bへの衝突速度すなわち移動錘ケース32の揺
動角度に依存する。この電力は、回転速度に依存せず装
置構成により定まる値であり、移動錘ケース32が所定
の角度を有する揺動状態になれば、風車16の回転速度
が低い場合にも、移動錘34が圧電素子36a,36b
に衝突して電力が発生し、発光部14が発光する。When the moving weight 34 collides, the piezoelectric elements 36a,
36b generates electric power, and the electric power generates the piezoelectric element 36a.
The light emitting unit 14 connected to the wirings 36b and 36b by a wiring (not shown) emits light. The power generated per collision is the wind turbine 1
6, the piezoelectric element 36 of the moving weight 34
a, 36b, that is, the swing angle of the movable weight case 32. This power is a value determined by the device configuration without depending on the rotation speed. When the movable weight case 32 is in a swinging state having a predetermined angle, the movable weight 34 can be moved even when the rotation speed of the windmill 16 is low. Piezoelectric elements 36a, 36b
To generate power, and the light emitting unit 14 emits light.
【0015】移動錘34の圧電素子36a,36bへの
衝突頻度は、風車16の回転速度に依存する。本実施形
態では、圧電素子36a,36bを発光部14に直接接
続するため、発光部14の発光頻度が風車16の回転速
度に比例する。ちなみに本実施形態では、この発光頻度
は風車16一回転あたり二回となる。本実施形態によれ
ば、風車16の回転速度すなわち風速に応じて発光頻度
が変化するので、発光部14を見れば、この発光間隔が
短い場合には風速が高い状態、また発光間隔が長い場合
には風速が低い状態であることを容易に認識することが
できる。The frequency of collision of the movable weight 34 with the piezoelectric elements 36a and 36b depends on the rotation speed of the windmill 16. In this embodiment, since the piezoelectric elements 36 a and 36 b are directly connected to the light emitting unit 14, the light emission frequency of the light emitting unit 14 is proportional to the rotation speed of the windmill 16. Incidentally, in this embodiment, the light emission frequency is twice per one rotation of the windmill 16. According to the present embodiment, since the light emission frequency changes according to the rotation speed of the windmill 16, that is, the wind speed, the light emitting unit 14 indicates that when the light emission interval is short, the wind speed is high, and when the light emission interval is long. Can easily recognize that the wind speed is low.
【0016】なお本実施形態では、揺動が最大となる二
つの状態(図3(b)および図3(c))で両移動端の
上下間隔が等しくなるよう構成している。このため、こ
れら二つの状態において移動錘ケース32の揺動角度が
等しくなり、移動錘34が圧電素子36aに衝突して生
じる電力と、移動錘34が圧電素子36bに衝突して生
じる電力とは同じ大きさとなり、それぞれの状態に応じ
た発光部14の発光強度を等しくすることができる。In this embodiment, the upper and lower distances between the two moving ends are equal in the two states (FIG. 3 (b) and FIG. 3 (c)) where the swing is maximum. Accordingly, in these two states, the swing angle of the movable weight case 32 becomes equal, and the power generated when the movable weight 34 collides with the piezoelectric element 36a and the power generated when the movable weight 34 collides with the piezoelectric element 36b are different. They have the same size, and the light emission intensity of the light emitting unit 14 according to each state can be made equal.
【0017】[0017]
【発明の効果】以上説明したように、本発明によれば、
発電機構を簡素かつ軽量に構成することができるため、
風向の変化に対する指向応答性が向上する。As described above, according to the present invention,
Because the power generation mechanism can be configured simply and lightly,
Directional response to a change in wind direction is improved.
【図1】 本実施形態にかかる電子式風見鶏の概略構成
図である。FIG. 1 is a schematic configuration diagram of an electronic weathercock according to the present embodiment.
【図2】 本実施形態にかかる電子式風見鶏内部の概略
構成図である。FIG. 2 is a schematic configuration diagram of the inside of an electronic weathercock according to the present embodiment.
【図3】 本実施形態にかかる電子式風見鶏の発電機構
による発電を示す説明図である。FIG. 3 is an explanatory diagram illustrating power generation by a power generation mechanism of the electronic weathercock according to the present embodiment.
1 電子式風見鶏、10 本体、11 外枠(風切
部)、12 支持軸、14発光部、16 風車、18
内枠、22 回転シャフト、24 リンクアーム(運動
変換機構)、26 揺動シャフト、30 発電機構、3
2 移動錘ケース、34 移動錘、36a,36b 圧
電素子。1 electronic weathercock, 10 main body, 11 outer frame (wind cut section), 12 support shaft, 14 light emitting section, 16 windmill, 18
Inner frame, 22 rotation shaft, 24 link arm (motion conversion mechanism), 26 swing shaft, 30 power generation mechanism, 3
2 Moving weight case, 34 Moving weight, 36a, 36b Piezoelectric element.
Claims (1)
と、 前記本体に回転自在に軸支され風を受けて回転する風車
と、 前記風車の回転による揺動を自在に前記本体に支持さ
れ、内部にその揺動に伴って往復移動する移動錘を備え
る移動錘ケースと、 前記移動錘ケース内部の移動錘の移動端に設けられ、移
動錘ケースの揺動に伴って移動する移動錘との衝突によ
り電力を発生する圧電素子と、 前記電力により発光する発光部と、 を備える電子式風見鶏。1. A main body rotatably supported by a support shaft, a wind-off portion provided on the main body to direct the main body in a wind direction, and a rotatably supported by the main body to receive wind and rotate. A movable weight case having a movable weight supported by the main body so as to be freely swingable by the rotation of the windmill and reciprocating with the swing, and movement of the movable weight inside the movable weight case An electronic weathercock, comprising: a piezoelectric element provided at an end, which generates electric power by collision with a movable weight that moves with the swinging of the movable weight case; and a light emitting unit that emits light by the electric power.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2000191233A JP2002005948A (en) | 2000-06-26 | 2000-06-26 | Electronic weather vane |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2000191233A JP2002005948A (en) | 2000-06-26 | 2000-06-26 | Electronic weather vane |
Publications (1)
Publication Number | Publication Date |
---|---|
JP2002005948A true JP2002005948A (en) | 2002-01-09 |
Family
ID=18690565
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2000191233A Pending JP2002005948A (en) | 2000-06-26 | 2000-06-26 | Electronic weather vane |
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JP (1) | JP2002005948A (en) |
Cited By (5)
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WO2005008804A2 (en) * | 2003-05-08 | 2005-01-27 | Power Estimate Company | Apparatus and method for providing electrical energy generated from motion to an electrically powered device |
JP2006102293A (en) * | 2004-10-07 | 2006-04-20 | Samii Kk | Pinball game machine |
JP2009127600A (en) * | 2007-11-27 | 2009-06-11 | Taiheiyo Cement Corp | Wind power generator using piezoelectric element, wind velocity measurement device, and wind power generation system |
JP2009243393A (en) * | 2008-03-31 | 2009-10-22 | Taiheiyo Cement Corp | Wind power generator using piezoelectric element, and wind power generation device and wind velocity measurement device using it |
JP2013076406A (en) * | 2012-12-26 | 2013-04-25 | Taiheiyo Cement Corp | Wind power generator using piezoelectric element, wind velocity measurement device, and wind power generation system |
-
2000
- 2000-06-26 JP JP2000191233A patent/JP2002005948A/en active Pending
Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2005008804A2 (en) * | 2003-05-08 | 2005-01-27 | Power Estimate Company | Apparatus and method for providing electrical energy generated from motion to an electrically powered device |
WO2005008804A3 (en) * | 2003-05-08 | 2006-12-28 | Power Estimate Company | Apparatus and method for providing electrical energy generated from motion to an electrically powered device |
JP2006102293A (en) * | 2004-10-07 | 2006-04-20 | Samii Kk | Pinball game machine |
JP2009127600A (en) * | 2007-11-27 | 2009-06-11 | Taiheiyo Cement Corp | Wind power generator using piezoelectric element, wind velocity measurement device, and wind power generation system |
JP2009243393A (en) * | 2008-03-31 | 2009-10-22 | Taiheiyo Cement Corp | Wind power generator using piezoelectric element, and wind power generation device and wind velocity measurement device using it |
JP2013076406A (en) * | 2012-12-26 | 2013-04-25 | Taiheiyo Cement Corp | Wind power generator using piezoelectric element, wind velocity measurement device, and wind power generation system |
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