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JPS5949643B2 - hanging light fixtures - Google Patents
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JPS5949643B2 - hanging light fixtures - Google Patents

hanging light fixtures

Info

Publication number
JPS5949643B2
JPS5949643B2 JP3441378A JP3441378A JPS5949643B2 JP S5949643 B2 JPS5949643 B2 JP S5949643B2 JP 3441378 A JP3441378 A JP 3441378A JP 3441378 A JP3441378 A JP 3441378A JP S5949643 B2 JPS5949643 B2 JP S5949643B2
Authority
JP
Japan
Prior art keywords
hanging
lamp
light fixtures
gear
hanging light
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.)
Expired
Application number
JP3441378A
Other languages
Japanese (ja)
Other versions
JPS54127176A (en
Inventor
たつひこ 森本
健治 横田
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Panasonic Electric Works Co Ltd
Original Assignee
Matsushita Electric Works Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Matsushita Electric Works Ltd filed Critical Matsushita Electric Works Ltd
Priority to JP3441378A priority Critical patent/JPS5949643B2/en
Publication of JPS54127176A publication Critical patent/JPS54127176A/en
Publication of JPS5949643B2 publication Critical patent/JPS5949643B2/en
Expired legal-status Critical Current

Links

Landscapes

  • Circuit Arrangement For Electric Light Sources In General (AREA)
  • Fastening Of Light Sources Or Lamp Holders (AREA)

Description

【発明の詳細な説明】 本発明は吊ク下げ形照明器具に関するもので、その目的
とするところは、吊ク下げ高さを変えると同時に調光が
できる照明器具を提供するにある。
DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a hanging type lighting fixture, and an object of the present invention is to provide a lighting fixture that can change the hanging height and simultaneously adjust the light intensity.

以下本発明を図面に基づき詳述する。第1図はーー実施
例を示す一部断面正面図で、第2図はその要部を示す断
面図であり、図において1は灯具であつて、セード2、
反射板3、カバー4、調光回路ブロック5、ソケット6
、ランプT及び吊ク下げ高さ調節装置8等で構成され、
天井Aより吊紐、・9を介して吊ク下げられ、カールコ
ード10によりソケット6に電気が供給される。而して
、吊ク下げ高さ調節装置8は第2図に示す如く、吊紐9
を巻取るリール11と、リール11に固定された歯車A
12と、該歯車A12と噛合つた歯車B13と、該歯車
B13にボリューム軸14を介して取付けられた調光ボ
リューム5等で構成され、リール11はセード2に固着
されたリール取付台16にリール軸ITを介して取付け
られると共につまみネジ18によつて摩擦力が調節でき
るようになつている。また歯車A12と歯車B13の歯
車比はリール11の回転を調光ボリューム15が所要の
回転角度になるように設定してある。尚、19はリール
11の中心部に内蔵されたゼンマイバネであつて、吊紐
9の巻戻しによつて加圧され、その復元力によつて吊紐
9を巻取る。かかる構成のため、灯具1の吊ク下げ高さ
を変えるとリール11が回転し、それに伴ない調光ボリ
ューム15が所定の回転角度だけ回転し、調光回路フロ
ック5によりランプTの明るさを変えることができる。
The present invention will be explained in detail below based on the drawings. Fig. 1 is a partially sectional front view showing the embodiment, and Fig. 2 is a sectional view showing the main parts thereof. In the figure, 1 is a lamp, a shade 2,
Reflector plate 3, cover 4, dimming circuit block 5, socket 6
, a lamp T, a hanging height adjustment device 8, etc.,
It is suspended from the ceiling A via a hanging cord 9, and electricity is supplied to the socket 6 through a curl cord 10. As shown in FIG.
A reel 11 that winds up the material and a gear A fixed to the reel 11.
12, a gear B13 meshing with the gear A12, and a dimming volume 5 attached to the gear B13 via a volume shaft 14. It is attached via the shaft IT and the frictional force can be adjusted by means of a thumbscrew 18. Further, the gear ratio between the gear A12 and the gear B13 is set so that the rotation of the reel 11 is such that the dimming volume 15 reaches a required rotation angle. Incidentally, reference numeral 19 is a spiral spring built in the center of the reel 11, which is pressurized by the unwinding of the hanging cord 9, and winds up the hanging cord 9 by its restoring force. With this configuration, when the hanging height of the lamp 1 is changed, the reel 11 rotates, and accordingly, the dimming volume 15 rotates by a predetermined rotation angle, and the brightness of the lamp T is adjusted by the dimming circuit flock 5. It can be changed.

従つて灯具1の吊D下げ高さに連動してランプTを調光
でき、例えば吊ク下げ高さを低くしたとき暗くなるよう
にすると共に、その減光率を吊ク下げ高さの二乗に反比
例するようにしておけば、被照射面の照度を一定に保つ
ことができる。そのため良好な照明と節電とを容易に達
成することができる。次に第4図及び第5図は本発明の
異なる実施例を示す一部断面正面図で、前記実施例にお
ける調光ボリューム15を作動杆A20、作動杆B21
を介して上下方向に伸縮自在なパンタグラフ状の吊具2
2に連動して変化させるものである。
Therefore, the lamp T can be dimmed in conjunction with the hanging height D of the lamp 1. For example, when the hanging height is lowered, it becomes darker, and the dimming rate is set to the square of the hanging height. By making it inversely proportional to , the illuminance of the irradiated surface can be kept constant. Therefore, good illumination and power saving can be easily achieved. Next, FIGS. 4 and 5 are partially sectional front views showing different embodiments of the present invention.
A pantograph-shaped hanging device 2 that can be freely expanded and contracted in the vertical direction via the
It changes in conjunction with 2.

尚、前記実施例と同一又は同等の構成部分には同一符号
を符してある。かかる構成の場合も、吊具22の伸縮値
に対応して所望の照度が得られるように設定しておけば
、前記実施例における効果と同様の効果を達成すること
ができる。
Incidentally, the same or equivalent components as in the above embodiment are designated by the same reference numerals. Even in the case of such a configuration, if the desired illuminance is set in accordance with the expansion/contraction value of the hanger 22, the same effects as in the above embodiment can be achieved.

本発明は上記の如く、灯具の吊ク下げ高さに連動して変
化する調光装置を設けたことにより、灯具を上下させる
だけで調光できるため、従来のように吊ク下げ高さを変
え更に調光装置を操作すると云つた煩雑さのない吊b下
げ形照明器具を提供することができる。
As described above, the present invention is equipped with a light control device that changes in conjunction with the hanging height of the lamp, so that the light can be adjusted simply by moving the lamp up and down, so that the hanging height can be adjusted as desired. It is possible to provide a hanging type lighting fixture that does not require the complication of changing the lighting and operating the dimmer.

【図面の簡単な説明】[Brief explanation of the drawing]

第1図は本発明の一実施例を示す一部断面正面図、第2
図は同上の要部を示す断面図、第3図は同上の簡易回路
図、第4図及び第5図は本発明の異なる実施例を示す一
部断面正面図である。
FIG. 1 is a partially sectional front view showing one embodiment of the present invention, and FIG.
3 is a simplified circuit diagram of the same as the above, and FIGS. 4 and 5 are partially sectional front views showing different embodiments of the present invention.

Claims (1)

【特許請求の範囲】[Claims] 1 灯具の吊り下げ高さに連動して変化する調光装置を
設けたことを特徴とする吊り下げ形照明器具。
1. A hanging lighting fixture characterized by being equipped with a dimmer that changes in conjunction with the hanging height of the lighting fixture.
JP3441378A 1978-03-24 1978-03-24 hanging light fixtures Expired JPS5949643B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP3441378A JPS5949643B2 (en) 1978-03-24 1978-03-24 hanging light fixtures

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP3441378A JPS5949643B2 (en) 1978-03-24 1978-03-24 hanging light fixtures

Publications (2)

Publication Number Publication Date
JPS54127176A JPS54127176A (en) 1979-10-02
JPS5949643B2 true JPS5949643B2 (en) 1984-12-04

Family

ID=12413496

Family Applications (1)

Application Number Title Priority Date Filing Date
JP3441378A Expired JPS5949643B2 (en) 1978-03-24 1978-03-24 hanging light fixtures

Country Status (1)

Country Link
JP (1) JPS5949643B2 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP4845679B2 (en) * 2006-11-02 2011-12-28 東洋電装株式会社 Switch device

Also Published As

Publication number Publication date
JPS54127176A (en) 1979-10-02

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