JP3823611B2 - Lighting equipment with variable irradiation direction - Google Patents

Lighting equipment with variable irradiation direction Download PDF

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Publication number
JP3823611B2
JP3823611B2 JP15807999A JP15807999A JP3823611B2 JP 3823611 B2 JP3823611 B2 JP 3823611B2 JP 15807999 A JP15807999 A JP 15807999A JP 15807999 A JP15807999 A JP 15807999A JP 3823611 B2 JP3823611 B2 JP 3823611B2
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JP
Japan
Prior art keywords
lamp
stopper
view
support member
horizontal rotation
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 - Lifetime
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JP15807999A
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Japanese (ja)
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JP2000348528A (en
Inventor
光彦 中辻
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
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Matsushita Electric Works Ltd
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Priority to JP15807999A priority Critical patent/JP3823611B2/en
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Description

【0001】
【発明の属する技術分野】
この発明は、照射方向可変型照明器具に関するものである。
【0002】
【従来の技術】
図12は従来の照射方向可変型照明器具に断面側面図、図13はその要部拡大図である。図12に示すように、灯具50は水平回転可能で、かつ軸心が傾斜できるように支持部材51に支持される。図13に示すように、灯具50に可動ストッパ52を設け、これに当接する固定ストッパ53を支持部材51に設けることで、灯具50が1回転以上して電線55が切断されることを防止している。また、支持部材51に灯具50の外周面を押える灯具押えばね54を取付け、その摩擦力により振動による灯具水平回転を抑制している。
【0003】
【発明が解決しようとする課題】
しかしながら、上記従来の照射方向可変型照明器具においては、固定ストッパ53の取付位置に可動ストッパ52を移動させることができないので、灯具50の回転角度が360°以下になり照射範囲に死角があるという問題があった。
【0004】
また、可動ストッパ52、灯具押えばね54が別々に設けてあるので部品点数が多くなり組み立て難く、容易に製作することができない。また、灯具50の可動のためにクリアランスがあり、振動によりがたつき音がする。さらに、灯具押えばね54の取付けスペースと取付けビスが必要になる。
【0005】
したがって、この発明の目的は、灯具水平回転範囲が大きく、部品点数が少なく組み立て作業性が向上できる等の効果がある照射方向可変型照明器具を提供することである。
【0006】
【課題を解決するための手段】
上記課題を解決するためにこの発明の請求項1記載の照射方向可変型照明器具は、灯具が水平回転できるように支持部材に支持されるとともに、所定角度以上の灯具水平回転を阻止する相互に当接可能な一対のストッパを前記灯具と支持部材にそれぞれ設けた照射方向可変型照明器具において、前記支持部材側のストッパが、灯具水平回転と同方向の一定範囲を可動するように前記支持部材に取付けられる取付部と、前記灯具側のストッパに当接可能な突出部と、前記灯具の外周面を押える弾性部とを備えた。
【0007】
このように、支持部材側のストッパの取付部が、灯具水平回転と同方向の一定範囲を可動するように支持部材に取付けられるので、灯具水平回転範囲が大きくなる。すなわち360°以上の灯具水平回転が可能となり照射範囲に死角がなくなる。また、灯具側のストッパに当接可能な突出部と、灯具の外周面を押える弾性部とが同一のストッパに備えてあるので、部品点数が1点で水平回転ストッパと、振動による水平回転の抑制と、がたつき防止の機能を果たすことができる。このため、組み立て作業性向上によりコストダウンを図ることができ、振動によるがたつき音がなくなる。また、従来のように灯具押えばねを別に設ける必要がないので、ばね取付スペース減少により器具の小型化が可能となる。
【0008】
【発明の実施の形態】
この発明の第1の実施の形態の照射方向可変型照明器具を図1ないし図5に基づいて説明する。図1はこの発明の第1の実施の形態の照射方向可変型照明器具の断面側面図、図2はその要部拡大図、図3(a)は第1の実施の形態の可動式のストッパの側面図、(b)は正面図、(c)は平面図、図4(a)は第1の実施の形態の支持部材側のストッパの状態を示す正面図、(b)はその平面図、図5(a)は第1の実施の形態の支持部材側のストッパの別の状態を示す正面図、(b)はその平面図である。
【0009】
図1に示すように、天井1に設けた開口部2に照射方向可変型照明器具3が埋め込まれている。この照射方向可変型照明器具3は、灯具4と支持部材5を備えている。支持部材5は、開口部2に挿入され脚部6aにより天井1に支持されるフレーム6と、フレーム6内に配置されてばね7aにより取付けられる枠体7とを備えている。灯具4は水平回転可能で、かつ軸心が傾斜できるように支持部材5に支持される。この場合、図2に示すように、灯具4の下端が枠体7により回転自在に支持されるととともに、外周面にストッパ8がねじ止めにより突設されている。すなわち、灯具4に貫通したボルトをワッシャを介してナットにねじ止めすることにより外周面に突出したボルト頭部がストッパ8となる。また、このストッパ8の軸周りに灯具4の内側部4aが回動して傾斜する。
【0010】
また、支持部材5側の灯具水平回転機構部に可動式のステンレス製ストッパ10を備え、これに前記ストッパ8が当接することで所定角度以上の灯具水平回転を阻止する。
【0011】
ストッパ10は、図3に示すように、取付部11と、灯具4側のストッパ8に当接可能な突出部12と、灯具4の外周面を押える弾性部13とを備えている。この場合、ストッパ10の板状部10aの一方の側面に突出部12が突設され、板状部10aの下部の中央の1箇所を他方の側面側に垂下片が位置するようにL形に折曲することで取付部11が形成してある。また、板状部10aの上部の中央に上方に延びた弾性部13が一方の側面側に折曲した状態で形成され、その両側にガイド片11a,11aが他方の側面側に突設してある。また、図4および図5に示すように、枠体7の分離可能な上枠部7bに灯具水平回転と同方向に延びるスリット14が設けてある。このスリット14に取付部11が移動自在に挿入されるとともにガイド片11aを上枠部7bの上縁部に当接させることにより、ストッパ10が灯具水平回転と同方向の一定範囲を可動する。
【0012】
上記構成の照明器具の作用について説明する。灯具4を回転させてそのストッパ8が可動式のストッパ10の突出部12に当接すると(図4)、ストッパ8とともに可動式のストッパ10が可動する(図5)。このとき、取付部11がスリット14の長さの範囲でスライドすることで、灯具4を360°以上回転させることが可能となる。また、ガイド片11によりストッパ10の姿勢が保持されるので円滑にスライドする。
【0013】
以上のようにこの実施の形態によれば、可動式のストッパ10の取付部11が、灯具水平回転と同方向の一定範囲を可動するように支持部材5に取付けられるので、灯具水平回転範囲が大きくなる。すなわち360°以上の灯具水平回転が可能となり照射範囲に死角がなくなる。また、灯具4側のストッパ8に当接可能な突出部12と、灯具4の外周面を押える弾性部13とが同一のストッパ10に備えてあるので、部品点数が1点で水平回転ストッパと、振動による水平回転の抑制と、がたつき防止の機能を果たすことができる。このため、組み立て作業性向上によりコストダウンを図ることができ、振動によるがたつき音がなくなる。また、従来のように灯具押えばねを別に設ける必要がないので、ばね取付スペース減少により器具の小型化が可能となる。
【0014】
この発明の第2の実施の形態の照射方向可変型照明器具を図6ないし図8に基づいて説明する。図6(a)はこの発明の第2の実施の形態の可動式のストッパの側面図、(b)は正面図、(c)は平面図、図7(a)は第2の実施の形態の可動式のストッパの状態を示す正面図、(b)はその平面図、図8(a)は第2の実施の形態の可動式のストッパの別の状態を示す正面図、(b)はその平面図である。
【0015】
図6に示すように、この実施の形態におけるストッパ20は、取付部21、突出部22および弾性部23が板状部20aに形成してあるが、取付部21の形状が異なる。すなわち、板状部20aの下部の両側の2箇所を同様にL形に折曲することで一対の取付部21,21が形成してある。また、ガイド片は形成していない。
【0016】
上記構成の照明器具の作用について説明する。図7および図8に示すように灯具4を回転させてそのストッパ8が可動式のストッパ20の突出部22に当接すると、ストッパ8とともに可動式のストッパ20が可動する。このとき、取付部21がスリット14の長さの範囲でスライドすることで、灯具4を360°以上回転させることが可能となる。また、取付部21を2箇所に設けたことにより、スライド時にストッパ20の姿勢を維持できる。
【0017】
以上のようにこの実施の形態によれば、ストッパ10に取付部21を2箇所備えることにより、灯具水平回転方向に可動するためのガイド片も兼ねる。その他の構成効果は、第1の実施の形態と同様である。
【0018】
この発明の第3の実施の形態の照射方向可変型照明器具を図9ないし図11に基づいて説明する。図9(a)はこの発明の第3の実施の形態の可動式のストッパの側面図、(b)は正面図、(c)は平面図、図10(a)は第3の実施の形態の可動式のストッパの状態を示す正面図、(b)はその平面図、図11(a)は第3の実施の形態の可動式のストッパの別の状態を示す正面図、(b)はその平面図である。
【0019】
図9に示すように、この実施の形態におけるストッパ25は、取付部26、突出部27および弾性部28が板状部25aに形成してあるが、取付部26の形状が異なる。すなわち、板状部10aの下部を中央周辺部を同様にL形に折曲することで広幅の取付部26が形成してある。また、ガイド片は形成していない。
【0020】
上記構成の照明器具の作用について説明する。図10および図11に示すように灯具4を回転させてそのストッパ8が可動式のストッパ25の突出部27に当接すると、ストッパ8とともに可動式のストッパ25が可動する。このとき、取付部26がスリット14の長さの範囲でスライドすることで、灯具4を360°以上回転させることが可能となる。また、取付部26の幅を広くすることにより、スライド時にストッパ25の姿勢を維持できる。
【0021】
以上のようにこの実施の形態によれば、ストッパ25に取付部26の幅を広くすることにより、灯具水平回転方向に可動するためのガイド片も兼ねる。その他の構成効果は、第1の実施の形態と同様である。
【0022】
【発明の効果】
この発明の照明器具によれば、支持部材側のストッパの取付部が、灯具水平回転と同方向の一定範囲を可動するように支持部材に取付けられるので、灯具水平回転範囲が大きくなる。すなわち360°以上の灯具水平回転が可能となり照射範囲に死角がなくなる。また、灯具側のストッパに当接可能な突出部と、灯具の外周面を押える弾性部とが同一のストッパに備えてあるので、部品点数が1点で水平回転ストッパと、振動による水平回転の抑制と、がたつき防止の機能を果たすことができる。このため、組み立て作業性向上によりコストダウンを図ることができ、振動によるがたつき音がなくなる。また、従来のように灯具押えばねを別に設ける必要がないので、ばね取付スペース減少により器具の小型化が可能となる。
【図面の簡単な説明】
【図1】この発明の第1の実施の形態の照射方向可変型照明器具の断面側面図である。
【図2】図1の要部拡大図である。
【図3】(a)は第1の実施の形態の可動式のストッパの側面図、(b)は正面図、(c)は平面図である。
【図4】(a)は第1の実施の形態の可動式のストッパの状態を示す正面図、(b)はその平面図である。
【図5】(a)は第1の実施の形態の可動式のストッパの別の状態を示す正面図、(b)はその平面図である。
【図6】(a)はこの発明の第2の実施の形態の可動式のストッパの側面図、(b)は正面図、(c)は平面図である。
【図7】(a)は第2の実施の形態の可動式のストッパの状態を示す正面図、(b)はその平面図である。
【図8】(a)は第2の実施の形態の可動式のストッパの別の状態を示す正面図、(b)はその平面図である。
【図9】(a)はこの発明の第3の実施の形態の可動式のストッパの側面図、(b)は正面図、(c)は平面図である。
【図10】(a)は第3の実施の形態の可動式のストッパの状態を示す正面図、(b)はその平面図である。
【図11】(a)は第3の実施の形態の可動式のストッパの別の状態を示す正面図、(b)はその平面図である。
【図12】従来の照射方向可変型照明器具に断面側面図である。
【図13】図12の要部拡大図である。
【符号の説明】
1 天井
2 開口部
3 照射方向可変型照明器具
4 灯具
5 支持部材
8 ストッパ
10,20,25 可動式ストッパ
11,21,26 取付部
12,22,27 突出部
13,23,28 弾性部
14 スリット
[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a lighting device with variable irradiation direction.
[0002]
[Prior art]
FIG. 12 is a cross-sectional side view of a conventional illumination direction variable illumination fixture, and FIG. 13 is an enlarged view of a main part thereof. As shown in FIG. 12, the lamp 50 is supported by the support member 51 so that the lamp 50 can rotate horizontally and the axis can be inclined. As shown in FIG. 13, a movable stopper 52 is provided on the lamp 50, and a fixed stopper 53 that is in contact with the movable stopper 52 is provided on the support member 51, thereby preventing the electric lamp 55 from being cut once and more than once by rotating the lamp 50. ing. Further, a lamp pressing spring 54 for pressing the outer peripheral surface of the lamp 50 is attached to the support member 51, and the lamp horizontal rotation due to vibration is suppressed by the friction force thereof.
[0003]
[Problems to be solved by the invention]
However, in the conventional illumination direction variable lighting fixture, the movable stopper 52 cannot be moved to the mounting position of the fixed stopper 53, so that the rotation angle of the lamp 50 is 360 ° or less and there is a blind spot in the irradiation range. There was a problem.
[0004]
Further, since the movable stopper 52 and the lamp retainer spring 54 are provided separately, the number of parts is increased and it is difficult to assemble, and it cannot be easily manufactured. Further, there is a clearance for the movement of the lamp 50, and a rattling sound is generated by vibration. Further, a mounting space for the lamp retainer spring 54 and a mounting screw are required.
[0005]
Accordingly, an object of the present invention is to provide an illumination direction variable illumination device having an effect such that the lamp horizontal rotation range is large, the number of parts is small, and assembly workability can be improved.
[0006]
[Means for Solving the Problems]
In order to solve the above-mentioned problems, the illumination direction variable illumination device according to claim 1 of the present invention is supported by the support member so that the lamp can rotate horizontally, and prevents the lamp from rotating horizontally over a predetermined angle. In the illumination direction variable type luminaire in which a pair of stoppers capable of abutting are provided on the lamp and the support member, respectively, the support member is configured such that the stopper on the support member side is movable within a certain range in the same direction as the horizontal rotation of the lamp. And a protrusion that can contact the stopper on the lamp side, and an elastic part that presses the outer peripheral surface of the lamp.
[0007]
As described above, since the mounting portion of the stopper on the support member side is attached to the support member so as to move within a certain range in the same direction as the lamp horizontal rotation, the lamp horizontal rotation range is increased. In other words, the lamp can be rotated horizontally by 360 ° or more, and there is no blind spot in the irradiation range. In addition, since the same stopper is provided with a protruding portion that can contact the lamp-side stopper and an elastic portion that presses the outer peripheral surface of the lamp, the number of parts is one and the horizontal rotation stopper and horizontal rotation due to vibration are provided. It can serve to suppress and play back. For this reason, cost reduction can be achieved by improving assembly workability, and rattling noise caused by vibration is eliminated. Moreover, since it is not necessary to separately provide a lamp pressing spring as in the prior art, it is possible to reduce the size of the instrument by reducing the spring mounting space.
[0008]
DETAILED DESCRIPTION OF THE INVENTION
An irradiation direction variable illumination apparatus according to a first embodiment of the present invention will be described with reference to FIGS. FIG. 1 is a cross-sectional side view of a lighting device with variable irradiation direction according to a first embodiment of the present invention, FIG. 2 is an enlarged view of a main part thereof, and FIG. 3 (a) is a movable stopper according to the first embodiment. 4B is a front view, FIG. 4A is a front view, FIG. 4A is a front view showing a state of the stopper on the support member side of the first embodiment, and FIG. 4B is a plan view thereof. FIG. 5A is a front view showing another state of the stopper on the support member side of the first embodiment, and FIG. 5B is a plan view thereof.
[0009]
As shown in FIG. 1, an illumination direction variable illumination fixture 3 is embedded in an opening 2 provided in a ceiling 1. This illumination direction variable illumination fixture 3 includes a lamp 4 and a support member 5. The support member 5 includes a frame 6 inserted into the opening 2 and supported on the ceiling 1 by a leg 6a, and a frame 7 disposed in the frame 6 and attached by a spring 7a. The lamp 4 is supported by the support member 5 so that it can rotate horizontally and the axis can be inclined. In this case, as shown in FIG. 2, the lower end of the lamp 4 is rotatably supported by the frame body 7, and a stopper 8 is protruded from the outer peripheral surface by screwing. That is, the bolt head protruding to the outer peripheral surface by screwing the bolt penetrating the lamp 4 to the nut through the washer becomes the stopper 8. Further, the inner portion 4a of the lamp 4 is rotated and inclined around the axis of the stopper 8.
[0010]
In addition, a movable stainless steel stopper 10 is provided in the lamp horizontal rotation mechanism portion on the support member 5 side, and the lamp 8 abuts against this, thereby preventing the lamp horizontal rotation of a predetermined angle or more.
[0011]
As shown in FIG. 3, the stopper 10 includes a mounting portion 11, a protruding portion 12 that can contact the stopper 8 on the lamp 4 side, and an elastic portion 13 that presses the outer peripheral surface of the lamp 4. In this case, the protruding portion 12 is provided on one side surface of the plate-like portion 10a of the stopper 10 and is formed in an L shape so that the hanging piece is positioned on one side of the lower portion of the plate-like portion 10a on the other side surface side. The attachment part 11 is formed by bending. In addition, an elastic portion 13 extending upward at the center of the upper portion of the plate-like portion 10a is formed in a state of being bent to one side surface, and guide pieces 11a and 11a project from the other side surface on both sides thereof. is there. Further, as shown in FIGS. 4 and 5, a slit 14 extending in the same direction as the lamp horizontal rotation is provided in the separable upper frame portion 7 b of the frame body 7. The attachment portion 11 is movably inserted into the slit 14 and the guide piece 11a is brought into contact with the upper edge portion of the upper frame portion 7b, whereby the stopper 10 is moved within a certain range in the same direction as the lamp horizontal rotation.
[0012]
The operation of the lighting fixture having the above configuration will be described. When the lamp 4 is rotated and its stopper 8 comes into contact with the protrusion 12 of the movable stopper 10 (FIG. 4), the movable stopper 10 is moved together with the stopper 8 (FIG. 5). At this time, it becomes possible to rotate the lamp 4 by 360 ° or more by sliding the attachment portion 11 within the range of the length of the slit 14. Moreover, since the attitude | position of the stopper 10 is hold | maintained by the guide piece 11, it slides smoothly.
[0013]
As described above, according to this embodiment, the mounting portion 11 of the movable stopper 10 is mounted on the support member 5 so as to move within a certain range in the same direction as the lamp horizontal rotation. growing. In other words, the lamp can be rotated horizontally by 360 ° or more, and there is no blind spot in the irradiation range. Further, since the protruding portion 12 that can come into contact with the stopper 8 on the lamp 4 side and the elastic portion 13 that presses the outer peripheral surface of the lamp 4 are provided in the same stopper 10, the number of parts is one and the horizontal rotation stopper The function of suppressing horizontal rotation due to vibration and preventing rattling can be achieved. For this reason, cost reduction can be achieved by improving assembly workability, and rattling noise caused by vibration is eliminated. Moreover, since it is not necessary to separately provide a lamp pressing spring as in the prior art, it is possible to reduce the size of the instrument by reducing the spring mounting space.
[0014]
An irradiation direction variable type lighting apparatus according to a second embodiment of the present invention will be described with reference to FIGS. 6A is a side view of a movable stopper according to a second embodiment of the present invention, FIG. 6B is a front view, FIG. 6C is a plan view, and FIG. 7A is a second embodiment. FIG. 8B is a plan view thereof, FIG. 8A is a front view showing another state of the movable stopper of the second embodiment, and FIG. 8B is a front view showing the state of the movable stopper of FIG. FIG.
[0015]
As shown in FIG. 6, the stopper 20 in this embodiment has a mounting portion 21, a protruding portion 22, and an elastic portion 23 formed on a plate-like portion 20 a, but the shape of the mounting portion 21 is different. That is, a pair of attachment parts 21 and 21 are formed by similarly bending two places on both sides of the lower part of the plate-like part 20a into an L shape. Moreover, the guide piece is not formed.
[0016]
The operation of the lighting fixture having the above configuration will be described. As shown in FIGS. 7 and 8, when the lamp 4 is rotated and its stopper 8 comes into contact with the protruding portion 22 of the movable stopper 20, the movable stopper 20 is moved together with the stopper 8. At this time, the attachment part 21 slides within the length of the slit 14, whereby the lamp 4 can be rotated 360 ° or more. In addition, by providing the attachment portions 21 at two places, the posture of the stopper 20 can be maintained during sliding.
[0017]
As described above, according to this embodiment, by providing the stopper 10 with the two attachment portions 21, it also serves as a guide piece for moving in the lamp horizontal rotation direction. Other structural effects are the same as those of the first embodiment.
[0018]
An illumination direction variable illumination fixture according to a third embodiment of the present invention will be described with reference to FIGS. 9A is a side view of a movable stopper according to a third embodiment of the present invention, FIG. 9B is a front view, FIG. 9C is a plan view, and FIG. 10A is a third embodiment. FIG. 11B is a plan view thereof, FIG. 11A is a front view showing another state of the movable stopper according to the third embodiment, and FIG. FIG.
[0019]
As shown in FIG. 9, in the stopper 25 in this embodiment, the mounting portion 26, the protruding portion 27, and the elastic portion 28 are formed in the plate-like portion 25a, but the shape of the mounting portion 26 is different. That is, a wide attachment portion 26 is formed by bending the lower portion of the plate-like portion 10a into the L shape at the central peripheral portion. Moreover, the guide piece is not formed.
[0020]
The operation of the lighting fixture having the above configuration will be described. As shown in FIGS. 10 and 11, when the lamp 4 is rotated and its stopper 8 comes into contact with the protrusion 27 of the movable stopper 25, the movable stopper 25 is moved together with the stopper 8. At this time, it is possible to rotate the lamp 4 by 360 ° or more by sliding the attachment portion 26 within the range of the length of the slit 14. In addition, by increasing the width of the attachment portion 26, the posture of the stopper 25 can be maintained during sliding.
[0021]
As described above, according to this embodiment, by increasing the width of the attachment portion 26 to the stopper 25, it also serves as a guide piece for moving in the lamp horizontal rotation direction. Other structural effects are the same as those of the first embodiment.
[0022]
【The invention's effect】
According to the lighting fixture of the present invention, since the mounting portion of the stopper on the support member side is attached to the support member so as to move within a certain range in the same direction as the lamp horizontal rotation, the lamp horizontal rotation range is increased. In other words, the lamp can be rotated horizontally by 360 ° or more, and there is no blind spot in the irradiation range. In addition, since the same stopper is provided with a protruding portion that can contact the lamp-side stopper and an elastic portion that presses the outer peripheral surface of the lamp, the number of parts is one and the horizontal rotation stopper and horizontal rotation due to vibration are provided. It can serve to suppress and play back. For this reason, cost reduction can be achieved by improving assembly workability, and rattling noise caused by vibration is eliminated. Moreover, since it is not necessary to separately provide a lamp pressing spring as in the prior art, it is possible to reduce the size of the instrument by reducing the spring mounting space.
[Brief description of the drawings]
FIG. 1 is a cross-sectional side view of a lighting device with variable irradiation direction according to a first embodiment of the present invention.
FIG. 2 is an enlarged view of a main part of FIG.
3A is a side view of the movable stopper according to the first embodiment, FIG. 3B is a front view, and FIG. 3C is a plan view.
4A is a front view showing a state of a movable stopper according to the first embodiment, and FIG. 4B is a plan view thereof.
5A is a front view showing another state of the movable stopper according to the first embodiment, and FIG. 5B is a plan view thereof.
6A is a side view of a movable stopper according to a second embodiment of the present invention, FIG. 6B is a front view, and FIG. 6C is a plan view.
7A is a front view showing a state of a movable stopper according to a second embodiment, and FIG. 7B is a plan view thereof.
FIG. 8A is a front view showing another state of the movable stopper according to the second embodiment, and FIG. 8B is a plan view thereof.
9A is a side view of a movable stopper according to a third embodiment of the present invention, FIG. 9B is a front view, and FIG. 9C is a plan view.
10A is a front view showing a state of a movable stopper according to a third embodiment, and FIG. 10B is a plan view thereof.
11A is a front view showing another state of the movable stopper according to the third embodiment, and FIG. 11B is a plan view thereof.
FIG. 12 is a cross-sectional side view of a conventional illumination direction variable illumination fixture.
13 is an enlarged view of a main part of FIG.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Ceiling 2 Opening part 3 Irradiation direction variable type lighting fixture 4 Lamp 5 Support member 8 Stopper 10,20,25 Movable stopper 11,21,26 Mounting part 12,22,27 Protrusion part 13,23,28 Elastic part 14 Slit

Claims (1)

灯具が水平回転できるように支持部材に支持されるとともに、所定角度以上の灯具水平回転を阻止する相互に当接可能な一対のストッパを前記灯具と支持部材にそれぞれ設けた照射方向可変型照明器具において、前記支持部材側のストッパが、灯具水平回転と同方向の一定範囲を可動するように前記支持部材に取付けられる取付部と、前記灯具側のストッパに当接可能な突出部と、前記灯具の外周面を押える弾性部とを備えた照射方向可変型照明器具。An illumination direction variable type lighting apparatus provided with a pair of stoppers, which are supported by a support member so that the lamp can be rotated horizontally, and are capable of abutting each other to prevent the lamp from rotating horizontally over a predetermined angle. In this case, the stopper on the support member side is attached to the support member so as to move within a certain range in the same direction as the horizontal rotation of the lamp, a protrusion that can contact the stopper on the lamp side, and the lamp Irradiation direction variable type lighting equipment provided with an elastic part that presses the outer peripheral surface of the lamp.
JP15807999A 1999-06-04 1999-06-04 Lighting equipment with variable irradiation direction Expired - Lifetime JP3823611B2 (en)

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