JP4066592B2

JP4066592B2 - lighting equipment

Info

Publication number: JP4066592B2
Application number: JP2000182399A
Authority: JP
Inventors: 清斉藤
Original assignee: Matsushita Electric Works Ltd
Current assignee: Panasonic Electric Works Co Ltd
Priority date: 2000-06-19
Filing date: 2000-06-19
Publication date: 2008-03-26
Anticipated expiration: 2020-06-19
Also published as: JP2002008435A

Description

【０００１】
【発明の属する技術分野】
この発明は、照明器具に関するものである。
【０００２】
【従来の技術】
使用頻度の少ない場所等に設置され、通常は省エネルギのため消灯している照明器具として、人体をセンサで検知してランプを自動的に点灯するようにしたものがある。
【０００３】
【発明が解決しようとする課題】
しかし、センサと器具本体との位置関係が一定していないと、検知エリアが変化し、検知エリアが器具ごとにばらつくことがある。例えば同じ場所に複数の照明器具を設置しても、これらがともに点灯すべき位置に人体が存在しているにもかかわらず、一方は点灯し他方はまだ点灯しない状態になることがある。
【０００４】
したがって、この発明の目的は、検知エリアを一定にすることができる照明器具を提供することである。
【０００５】
【課題を解決するための手段】
請求項１記載の照明器具は、センサを先端に有する突起部を固定し検知信号を出力するセンサ基板と、
このセンサ基板に接続線により接続され前記検知信号を受けて点灯回路を制御する制御信号を出力する主基板と、
前記センサ基板および前記主基板を挿入する開口を有し前記センサ基板が配置される底部を有して前記主基板が前記センサ基板上に配置されるケースカバーと、前記開口を閉じるケース本体とを具備し、前記突起部の先端を挿通させる筒状の蓋部を前記底部に有し、前記センサ基板の縁部に係止するセンサ基板保持用爪、前記主基板の縁部に係止する主基板保持用爪、および前記ケース本体に係止する取付爪をそれぞれ前記ケースカバーに有するセンサブロック用のケースと、
前記ケース本体を内部に取付けて前記ケースカバーの前記蓋部に挿通された前記突起部の先端を露出させる器具開口部を前面に有する器具本体とを備え、
前記ケースカバーの前記底部は略Ｖ字形をなす斜面を有し、前記筒状の蓋部を前記底部の前記略Ｖ字形の折曲部に有し、
前記突起部を固定した前記センサ基板を保持する前記センサ基板保持用爪の基部を前記底部の前記斜面の内側より前記突起部の突出方向と反対方向に傾斜して延出することにより、前記センサ基板保持用爪に係止したセンサ基板の前記突起部に突出方向の樹脂弾性を付与するとともに、前記突起部を前記器具開口部に接触させたものである。
【０００６】
請求項１記載の照明器具によれば、センサ基板およびケースを介して突起部が器具本体に固定されるため、突起部と器具本体の位置関係を一定にできるので、突起部にセンサを設けることにより、器具本体に対する検知エリアを一定にすることができる。
前記ケースがケース本体およびケースカバーを有し、前記センサ基板は前記突起部を固定し、前記センサ基板は前記ケースカバーで保持するため、組立容易になるとともに、ケースカバーの突起部を露出する部分とセンサの位置関係を一定にでき、ケース本体とケースカバーの間の隙間やケース本体のたわみの影響を受けない。
前記ケースカバーが各基板を保持する保持用爪を有するため、各基板を取付け容易にできる。
回路基板が突起部を固定するセンサ基板と主基板とに分離されているため、検出信号を出力する基板と、その制御回路を有する基板とを分離することができ、外力を受ける突起部によって主基板が変形等の影響を受けるのを防止することができる。
前記ケースカバーが前記センサ基板を弾性的に保持したため、突起部に外力が加わっても弾性により吸収できるので突起部およびセンサ基板の損傷を防止できこれらを保護することができる。また前記突起部が前記器具開口部に接触したため、器具本体の器具開口部と突起部の位置関係を一定に保つことができ、突起部に設けたセンサの検知エリアをより一層一定に保つことができる。
【００１７】
請求項２記載の照明器具は、請求項１において、前記蓋部が前記ケースカバーと別体に形成され、前記ケースカバーの前記底部の前記折曲部に前記蓋部を外側から嵌合する角孔が形成され、前記角孔の内側に前記蓋部を受ける受け段を設け、前記蓋部は前記角孔に嵌合して前記受け段に係止する板部と、前記板部の中央に貫通した筒部と、前記板部の両端に形成して前記角孔の縁部に抜け止め係止する爪部を有するものである。
【００１８】
請求項２記載の照明器具によれば、請求項１の効果がある。
【００２３】
【発明の実施の形態】
この発明の第１の実施の形態を図１から図４により説明する。すなわち、この照明器具は、天井埋込型であり、器具本体１と、センサブロック２とを有する。
【００２４】
器具本体１は、図２に示すように天井３の埋込穴４に嵌め込まれ、天井裏の取付ボルト５に座金６とナット７により取付けられる。器具本体１には中央の長手方向に沿ってに富士形反射板８が取付けられ、器具本体１の両端にランプソケット９が取付けられ、反射板８の前側でランプソケット９に直管形のランプ１０が装着される。また反射板８の裏面側に安定器１１およびセンサブロック２が取付けられる。センサブロック２に対応して図１に示すように反射板８の断面山形の頂部に凹曲面１２が形成され、その底部に貫通孔１３が形成されている。１４は電源線である。
【００２５】
センサブロック２は、図３および図４に示すように、ケース１５とセンサ１６を有する。ケース１５はケース本体１７と、ケースカバー１８からなる。ケース本体１７は底浅の箱形であり、ケースカバー１８は断面略Ｖ字形である。ケースカバー１８は開口縁のほぼ四隅の位置にケース本体１７の係止受け（図示せず）に係止する取付爪２０を突設している。また開口縁の中央の内側より一対の主基板保持用爪１９を突出し、ケースカバー１８の中央より外方に円筒状の蓋部２１を一体に突出し、ケースカバー１８の蓋部２１の裏面側に一対のセンサ基板保持用爪２２を突出している。２３は出力線挿通部である。
【００２６】
センサ１６は、主基板２４と可撓な接続線２５で接続されたセンサ基板２６とを有し、センサ基板２６に突起部２７を取付け固定し、突起部２７の先端にセンサ１６を設けている。センサ１６はその検知信号を主基板２４に送り、主基板２４では検知信号により照明器具のランプ１０を点灯制御するものである。突起部２７を図４に示すように蓋部２１に通し、センサ基板２６の前面をケースカバー１８の内面に当接した状態で、センサ基板２６の側縁にセンサ基板保持用爪２２が係止し、保持状態となる。さらに主基板２４を主基板保持用爪１９に引っ掛け、図４（ｂ）に示すようにケース本体１７に取付爪２０でケースカバー１８を取付ける。図４に示すように突起部２７はその先端が筒部よりも若干突出している。
【００２７】
このセンサブロック２のケース本体１７を器具本体１に取付け、反射板８を器具本体１に取付けると、図１に示すよう反射板８の凹曲面１２の貫通孔１３に突起部２７が貫通しセンサ１６が器具の外部に露出することとなる。この場合、センサ１６を反射板８の貫通孔１３の裏側縁部に当接してもよい。
【００２８】
この実施の形態によれば、回路基板２４、２６およびケース１５を介して突起部２７が器具本体１に取付けられるため、突起部２７と器具本体１の位置関係を一定にできるので、突起部２７にセンサ１６を設けることにより、器具本体１に対する検知エリアを一定にすることができる。とくに、センサ基板２６をケースカバー１８に保持するため、ケースカバー１８の蓋部２１の開口部とセンサ１６の位置関係を一定に保つことができ、センサ１６の突出量を一定に保ち、ケース本体１７とケースカバー１８間の隙間やケース本体１７のたわみの影響を受けない。したがって、ケース本体１７、および器具本体１を介して反射板８の貫通孔１３との関係も一定にでき、センサ１６の検知エリアを一定にできることとなる。また主基板２４をケースカバー１８に仮保持可能としたため、組立容易になる。
【００２９】
センサ１６の検出信号を出力するセンサ基板２６と、その制御回路を有する主基板２４とを分離することにより、外力を受ける突起部２７によって主基板２４が変形等の影響を受けるのを防止できる。
【００３０】
この発明の第２の実施の形態を図５に示す。すなわち、第１の実施の形態のセンサ基板保持用爪２２を、ケースカバー１８の略Ｖ字形をなす斜面より突起部２７の突出方向に対して例えば略４５度の傾斜姿勢に突出して、センサ基板保持用爪２２の樹脂弾性により突起部２７の突出方向に対して弾性を付与するようにしたものである。
【００３１】
図５（ｂ）に示すように、反射板８の貫通孔１３の口縁に突起部２７の先端のセンサ１６の周縁が当接するようにしている。その他は第１の実施の形態と同様である。
【００３２】
この実施の形態によれば、センサ基板２６が弾性体を構成するセンサ基板保持用爪２２により保持されているため、蓋部２１より突出している寸法分ケース内側方向に移動することができるので、センサ１６に外力が加わった場合にセンサ１６は内側に移動しケースカバー１８内に入り込むと、その後外力はケースカバー１８で受けるのでセンサ１６を外力から保護することができ、センサ基板２６の保護にもなる。
【００３３】
この発明の第３の実施の形態を図６に示す。すなわち、第１の実施の形態におけるセンサ基板保持用爪２２に代えて、ケース本体１７に主基板２４を貫通する例えば筒状の一対の支持体３３に例えばコイルばねを用いたばね３４を設け、センサ基板２６に設けたガイド３５をばね３４に貫通して支持体３３に挿入し、支持体３３に所定範囲移動可能に取付けたものである。したがって、突起部２７のセンサ１６の先端部を反射板８の貫通孔１３の縁部に弾性係止することができ、また外力が突起部２７に加わっても第２の実施の形態と同様にセンサ１６を蓋部２１の先端まで後退することができる。なお支持体３３をセンサ基板２６をばね３４で連結してガイド３５を省略してもよい。
【００３４】
器具開口部となる貫通孔１３の裏面縁部とセンサ１６を接触させることにより、両者の位置関係を一定に保つことができるので、一定の検知エリアをより一層確保することができる。またセンサ１６が外力によって押されるときセンサ１６を開口部まで可動することができるので、センサ１６およびセンサ基板２６を保護することができる。
【００３５】
この発明の第４の実施の形態を図７および図８に示す。すなわち、第１の実施の形態において、蓋部２１がケースカバー１８と別体に形成されたものである。この場合、ケースカバー１８の中央には角孔３７が形成され、保持用爪２２の基部に蓋部２１を受ける受け段３８を設けている。蓋部２１は角孔３７に嵌合可能な板部３９と板部３９の中央に貫通した筒部４０と、板部３９の両端に形成した爪部４１からなる。
【００３６】
蓋部２１の板部３９をケースカバー１８の表側から角孔３７に挿入し受け段３８に係止すると同時に爪部４１が角孔３７の縁部に係止して固定される。その他は、第１の実施の形態と同様である。
【００３７】
この発明の第５の実施の形態を図９に示す。すなわち、第２の実施の形態において、蓋部２１が第４の実施の形態と同様にケースカバー１８と別体に形成されたものである。３８′は角孔３７の縁部に設けた受け段であり、受け段３８と同じ機能を有する。４０は蓋部２１からセンサ１６の突出量であり、センサ可動範囲である。
【００３８】
この発明の第６の実施の形態を図１０に示す。すなわち、第３の実施の形態において、蓋部２１が第４および第５の実施の形態と同様にケースカバー１８と別体に形成されたものである。
【００３９】
なお、この発明において、突起部２７の先端にセンサ１６を設けているが、突起部２７をセンサで構成してもよい。
【００４０】
【発明の効果】
請求項１記載の照明器具によれば、センサ基板およびケースを介して突起部が器具本体に固定されるため、突起部と器具本体の位置関係を一定にできるので、突起部にセンサを設けることにより、器具本体に対する検知エリアを一定にすることができる。
前記ケースがケース本体およびケースカバーを有し、前記センサ基板は前記突起部を固定し、前記センサ基板は前記ケースカバーで保持するため、組立容易になるとともに、ケースカバーの突起部を露出する部分とセンサの位置関係を一定にでき、ケース本体とケースカバーの間の隙間やケース本体のたわみの影響を受けない。
前記ケースカバーが各基板を保持する保持用爪を有するため、各基板を取付け容易にできる。
回路基板が突起部を固定するセンサ基板と主基板とに分離されているため、検出信号を出力する基板と、その制御回路を有する基板とを分離することができ、外力を受ける突起部によって主基板が変形等の影響を受けるのを防止することができる。
前記ケースカバーが前記センサ基板を弾性的に保持したため、突起部に外力が加わっても弾性により吸収できるので突起部およびセンサ基板の損傷を防止できこれらを保護することができる。また前記突起部が前記器具開口部に接触したため、器具本体の器具開口部と突起部の位置関係を一定に保つことができ、突起部に設けたセンサの検知エリアをより一層一定に保つことができる。
【００４６】
請求項２記載の照明器具によれば、請求項１の効果と同様である。
【図面の簡単な説明】
【図１】この発明の第１の実施の形態の一部を拡大した図の付いた斜視図である。
【図２】照明器具の分解斜視図である。
【図３】センサブロックの分解斜視図である。
【図４】（ａ）はケース本体とケースカバーを分離した断面図、（ｂ）はケース本体にケースカバーを結合した断面図である。
【図５】第２の実施の形態のセンサブロックを示し、（ａ）は断面図、（ｂ）は反射板に当接した状態の断面図である。
【図６】第３の実施の形態のセンサブロックを示し、（ａ）は断面図、（ｂ）はセンサの先端を反射板に当接した状態の断面図である。
【図７】第４の実施の形態のセンサブロックの分解斜視図である。
【図８】（ａ）はケース本体とケースカバーを分離し、部分拡大図の付いた断面図、（ｂ）はケース本体にケースカバーを結合した状態の断面図である。
【図９】第５の実施の形態のセンサブロックを示し、（ａ）は断面図、（ｂ）は反射板に当接した状態の断面図である。
【図１０】第６の実施の形態のセンサブロックを示し、（ａ）は断面図、（ｂ）はセンサの先端を反射板に当接した状態の断面図である。
【符号の説明】
１器具本体
１３器具開口部を形成する貫通孔
１５ケース
１６センサ
１７ケース本体
１８ケースカバー
１９主基板保持用爪
２２センサ基板保持用爪
２４回路基板を構成する主基板
２６回路基板を構成するセンサ基板
２７突起部[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a lighting fixture.
[0002]
[Prior art]
As a lighting fixture that is installed in a place where the frequency of use is low and is normally turned off for energy saving, there is a lighting fixture that automatically turns on the lamp by detecting a human body with a sensor.
[0003]
[Problems to be solved by the invention]
However, if the positional relationship between the sensor and the instrument body is not constant, the detection area may change, and the detection area may vary from instrument to instrument. For example, even if a plurality of lighting fixtures are installed in the same place, one of them may be lit and the other may not be lit even though there is a human body at a position where both of them should be lit.
[0004]
Therefore, the objective of this invention is providing the lighting fixture which can make a detection area constant.
[0005]
[Means for Solving the Problems]
The lighting fixture according to claim 1, wherein a sensor substrate that fixes a protrusion having a sensor at a tip and outputs a detection signal;
A main board that is connected to the sensor board by a connection line and outputs a control signal that receives the detection signal and controls the lighting circuit;
A case cover having an opening for inserting the sensor substrate and the main substrate and having a bottom portion on which the sensor substrate is disposed, and the main substrate being disposed on the sensor substrate; and a case body closing the opening. A claw for holding the sensor substrate, which has a cylindrical lid portion through which the tip of the projection portion is inserted, and which is engaged with the edge portion of the sensor substrate, and a main portion which is engaged with the edge portion of the main substrate. A case for a sensor block having a claw for holding a substrate and an attachment claw for locking to the case body in the case cover,
An instrument body having an instrument opening on the front surface that attaches the case body to the inside and exposes the tip of the protrusion inserted through the lid of the case cover;
The bottom portion of the case cover has a substantially V-shaped slope, and the cylindrical lid portion is provided in the substantially V-shaped bent portion of the bottom portion,
By extending a base portion of the sensor substrate holding claw for holding the sensor substrate to which the protrusion portion is fixed from the inside of the inclined surface of the bottom portion in a direction opposite to the protruding direction of the protrusion portion, the sensor Resin elasticity in the projecting direction is imparted to the protruding portion of the sensor substrate locked to the substrate holding claw, and the protruding portion is brought into contact with the instrument opening.
[0006]
According to the lighting device of the first aspect, since the projection is fixed to the instrument body via the sensor substrate and the case, the positional relationship between the projection and the instrument body can be made constant, so that the sensor is provided on the projection. Thereby, the detection area with respect to an instrument main body can be made constant.
The case has a case main body and a case cover, the sensor substrate fixes the protrusion, and the sensor substrate is held by the case cover, so that the assembly is easy and the portion of the case cover that exposes the protrusion The position of the sensor and the sensor can be kept constant, and the sensor is not affected by the gap between the case body and the case cover or the deflection of the case body.
Since the case cover has holding claws for holding the substrates, the substrates can be easily attached.
Since the circuit board is separated into the sensor board and the main board that fix the protrusions, the board that outputs the detection signal and the board that has the control circuit can be separated, and the main part is separated by the protrusions that receive external force. It is possible to prevent the substrate from being affected by deformation or the like.
Since the case cover elastically holds the sensor substrate, even if an external force is applied to the protruding portion, it can be absorbed by elasticity, so that the protruding portion and the sensor substrate can be prevented from being damaged and protected. In addition, since the projection contacts the instrument opening, the positional relationship between the instrument opening of the instrument body and the projection can be kept constant, and the detection area of the sensor provided on the projection can be kept more constant. it can.
[0017]
The lighting apparatus according to claim 2, wherein the lid portion is formed separately from the case cover according to claim 1, and an angle at which the lid portion is fitted to the bent portion of the bottom portion of the case cover from the outside. A hole is formed, and a receiving step for receiving the lid portion is provided inside the square hole. The lid portion is fitted in the square hole and locked to the receiving step; and a center portion of the plate portion. It has a cylindrical part which penetrated, and a claw part which is formed at both ends of the plate part and is locked to the edge of the square hole .
[0018]
According to the lighting fixture of Claim 2, there exists an effect of Claim 1 .
[0023]
DETAILED DESCRIPTION OF THE INVENTION
A first embodiment of the present invention will be described with reference to FIGS. That is, this lighting fixture is a ceiling-embedded type and has a fixture body 1 and a sensor block 2.
[0024]
As shown in FIG. 2, the instrument main body 1 is fitted into the embedding hole 4 of the ceiling 3 and is attached to the mounting bolt 5 on the back of the ceiling by a washer 6 and a nut 7. A Fuji-type reflector 8 is attached to the appliance body 1 along the central longitudinal direction, lamp sockets 9 are attached to both ends of the appliance body 1, and a straight tube lamp is attached to the lamp socket 9 on the front side of the reflector 8. 10 is mounted. Further, the ballast 11 and the sensor block 2 are attached to the back side of the reflecting plate 8. Corresponding to the sensor block 2, as shown in FIG. 1, a concave curved surface 12 is formed at the top of the mountain-shaped cross section of the reflecting plate 8, and a through hole 13 is formed at the bottom. Reference numeral 14 denotes a power line.
[0025]
As shown in FIGS. 3 and 4, the sensor block 2 includes a case 15 and a sensor 16. The case 15 includes a case main body 17 and a case cover 18. The case body 17 has a shallow bottom box shape, and the case cover 18 has a substantially V-shaped cross section. The case cover 18 is provided with projecting claws 20 projectingly engaged with locking receptacles (not shown) of the case body 17 at substantially four corners of the opening edge. Further, a pair of main substrate holding claws 19 protrude from the inside of the center of the opening edge, and a cylindrical lid portion 21 protrudes integrally from the center of the case cover 18 to the back side of the lid portion 21 of the case cover 18. A pair of sensor board holding claws 22 protrude. Reference numeral 23 denotes an output line insertion portion.
[0026]
The sensor 16 has a main substrate 24 and a sensor substrate 26 connected by a flexible connection line 25, and a protrusion 27 is attached and fixed to the sensor substrate 26, and the sensor 16 is provided at the tip of the protrusion 27. . The sensor 16 sends the detection signal to the main board 24, and the main board 24 controls lighting of the lamp 10 of the lighting fixture by the detection signal. As shown in FIG. 4, the projection 27 is passed through the lid 21, and the sensor substrate holding claw 22 is engaged with the side edge of the sensor substrate 26 with the front surface of the sensor substrate 26 being in contact with the inner surface of the case cover 18. And it will be in a holding state. Further, the main board 24 is hooked on the main board holding claws 19 and the case cover 18 is attached to the case main body 17 with the mounting claws 20 as shown in FIG. As shown in FIG. 4, the tip of the protrusion 27 protrudes slightly from the cylindrical portion.
[0027]
When the case main body 17 of the sensor block 2 is attached to the instrument main body 1 and the reflection plate 8 is attached to the instrument main body 1, the protrusion 27 penetrates the through hole 13 of the concave curved surface 12 of the reflection plate 8 as shown in FIG. 16 will be exposed outside the instrument. In this case, the sensor 16 may be in contact with the rear side edge of the through hole 13 of the reflecting plate 8.
[0028]
According to this embodiment, since the protrusion 27 is attached to the instrument main body 1 via the circuit boards 24 and 26 and the case 15, the positional relationship between the protrusion 27 and the instrument main body 1 can be made constant. By providing the sensor 16 with the sensor 16, the detection area for the instrument body 1 can be made constant. In particular, since the sensor substrate 26 is held by the case cover 18, the positional relationship between the opening of the lid portion 21 of the case cover 18 and the sensor 16 can be kept constant, the amount of protrusion of the sensor 16 can be kept constant, and the case body 17 and the case cover 18 and the case body 17 are not affected by the deflection. Therefore, the relationship between the case main body 17 and the instrument main body 1 and the through hole 13 of the reflector 8 can be made constant, and the detection area of the sensor 16 can be made constant. Further, since the main board 24 can be temporarily held on the case cover 18, assembly is facilitated.
[0029]
By separating the sensor substrate 26 that outputs the detection signal of the sensor 16 from the main substrate 24 having the control circuit, the main substrate 24 can be prevented from being affected by deformation or the like by the projection 27 that receives an external force.
[0030]
A second embodiment of the present invention is shown in FIG. That is, the sensor substrate holding claw 22 of the first embodiment protrudes in an inclined posture of, for example, approximately 45 degrees with respect to the protruding direction of the protrusion 27 from the substantially V-shaped inclined surface of the case cover 18, Elasticity is imparted to the protruding direction of the protrusion 27 by the resin elasticity of the holding claws 22.
[0031]
As shown in FIG. 5 (b), the periphery of the sensor 16 at the tip of the projection 27 is in contact with the lip of the through hole 13 of the reflecting plate 8. Others are the same as in the first embodiment.
[0032]
According to this embodiment, since the sensor substrate 26 is held by the sensor substrate holding claws 22 constituting the elastic body, the sensor substrate 26 can be moved inwardly by the dimension protruding from the lid portion 21. When an external force is applied to the sensor 16, the sensor 16 moves inward and enters the case cover 18. Thereafter, the external force is received by the case cover 18, so that the sensor 16 can be protected from the external force. Also become.
[0033]
A third embodiment of the present invention is shown in FIG. That is, instead of the sensor substrate holding claw 22 in the first embodiment, a spring 34 using, for example, a coil spring is provided on a pair of cylindrical support bodies 33 that penetrate the main substrate 24 in the case body 17, for example. A guide 35 provided on the substrate 26 is inserted into the support 33 through the spring 34 and attached to the support 33 so as to be movable within a predetermined range. Therefore, the tip of the sensor 16 of the protrusion 27 can be elastically locked to the edge of the through hole 13 of the reflector 8, and even if an external force is applied to the protrusion 27, the same as in the second embodiment. The sensor 16 can be retracted to the tip of the lid portion 21. Note that the guide 35 may be omitted by connecting the support 33 to the sensor substrate 26 with the spring 34.
[0034]
Since the sensor 16 is brought into contact with the back edge of the through-hole 13 serving as the instrument opening, the positional relationship between the two can be kept constant, so that a constant detection area can be further secured. Further, since the sensor 16 can be moved to the opening when the sensor 16 is pushed by an external force, the sensor 16 and the sensor substrate 26 can be protected.
[0035]
A fourth embodiment of the present invention is shown in FIGS. That is, in the first embodiment, the lid portion 21 is formed separately from the case cover 18. In this case, a square hole 37 is formed in the center of the case cover 18, and a receiving step 38 for receiving the lid portion 21 is provided at the base of the holding claw 22. The lid portion 21 includes a plate portion 39 that can be fitted into the square hole 37, a cylindrical portion 40 that penetrates through the center of the plate portion 39, and claw portions 41 that are formed at both ends of the plate portion 39.
[0036]
The plate portion 39 of the lid portion 21 is inserted into the square hole 37 from the front side of the case cover 18 and locked to the receiving step 38, and at the same time, the claw portion 41 is locked and fixed to the edge portion of the square hole 37. Others are the same as those in the first embodiment.
[0037]
A fifth embodiment of the present invention is shown in FIG. That is, in the second embodiment, the lid portion 21 is formed separately from the case cover 18 as in the fourth embodiment. Reference numeral 38 ′ denotes a receiving step provided at the edge of the square hole 37 and has the same function as the receiving step 38. Reference numeral 40 denotes an amount of protrusion of the sensor 16 from the lid portion 21, which is a sensor movable range.
[0038]
A sixth embodiment of the present invention is shown in FIG. That is, in the third embodiment, the lid portion 21 is formed separately from the case cover 18 as in the fourth and fifth embodiments.
[0039]
In addition, in this invention, although the sensor 16 is provided in the front-end | tip of the projection part 27, you may comprise the projection part 27 with a sensor.
[0040]
【The invention's effect】
According to the lighting device of the first aspect, since the projection is fixed to the instrument body via the sensor substrate and the case, the positional relationship between the projection and the instrument body can be made constant, so that the sensor is provided on the projection. Thereby, the detection area with respect to an instrument main body can be made constant.
The case has a case main body and a case cover, the sensor substrate fixes the protrusion, and the sensor substrate is held by the case cover, so that the assembly is easy and the portion of the case cover that exposes the protrusion The position of the sensor and the sensor can be kept constant, and the sensor is not affected by the gap between the case body and the case cover or the deflection of the case body.
Since the case cover has holding claws for holding the substrates, the substrates can be easily attached.
Since the circuit board is separated into the sensor board and the main board that fix the protrusions, the board that outputs the detection signal and the board that has the control circuit can be separated, and the main part is separated by the protrusions that receive external force. It is possible to prevent the substrate from being affected by deformation or the like.
Since the case cover elastically holds the sensor substrate, even if an external force is applied to the protruding portion, it can be absorbed by elasticity, so that the protruding portion and the sensor substrate can be prevented from being damaged and protected. In addition, since the protrusion comes into contact with the instrument opening, the positional relationship between the instrument opening of the instrument body and the protrusion can be kept constant, and the detection area of the sensor provided on the protrusion can be kept more constant. it can.
[0046]
According to the lighting apparatus of the second aspect, the effect is the same as that of the first aspect.
[Brief description of the drawings]
FIG. 1 is a perspective view with an enlarged view of a part of a first embodiment of the present invention.
FIG. 2 is an exploded perspective view of a lighting fixture.
FIG. 3 is an exploded perspective view of a sensor block.
4A is a cross-sectional view in which a case main body and a case cover are separated, and FIG. 4B is a cross-sectional view in which the case cover is coupled to the case main body.
5A and 5B show a sensor block according to a second embodiment, in which FIG. 5A is a cross-sectional view, and FIG. 5B is a cross-sectional view in a state of being in contact with a reflecting plate.
6A and 6B show a sensor block according to a third embodiment, in which FIG. 6A is a cross-sectional view, and FIG.
FIG. 7 is an exploded perspective view of a sensor block according to a fourth embodiment.
8A is a cross-sectional view with a case main body and a case cover separated, with a partially enlarged view, and FIG. 8B is a cross-sectional view of the case main body coupled with the case cover.
9A and 9B show a sensor block according to a fifth embodiment, where FIG. 9A is a cross-sectional view, and FIG. 9B is a cross-sectional view in a state of being in contact with a reflecting plate.
10A and 10B show a sensor block according to a sixth embodiment, in which FIG. 10A is a cross-sectional view, and FIG. 10B is a cross-sectional view in a state where the tip of the sensor is in contact with a reflector.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Instrument main body 13 Through-hole 15 which forms instrument opening part Case 16 Sensor 17 Case main body 18 Case cover 19 Main board holding nail 22 Sensor board holding nail 24 Main board constituting circuit board 26 Sensor board constituting circuit board 27 Protrusion

Claims

A sensor substrate that fixes a protrusion having a sensor at the tip and outputs a detection signal;
A main board that is connected to the sensor board by a connection line and outputs a control signal that receives the detection signal and controls the lighting circuit;
A case cover having an opening for inserting the sensor substrate and the main substrate and having a bottom portion on which the sensor substrate is disposed, and the main substrate being disposed on the sensor substrate; and a case body closing the opening. A claw for holding the sensor substrate, which has a cylindrical lid portion through which the tip of the projection portion is inserted, and which is engaged with the edge portion of the sensor substrate, and a main portion which is engaged with the edge portion of the main substrate. A case for a sensor block having a claw for holding a substrate and an attachment claw for locking to the case body in the case cover,
An instrument body having an instrument opening on the front surface that attaches the case body to the inside and exposes the tip of the protrusion inserted through the lid of the case cover;
The bottom portion of the case cover has a substantially V-shaped slope, and the cylindrical lid portion is provided in the substantially V-shaped bent portion of the bottom portion,
By extending a base portion of the sensor substrate holding claw for holding the sensor substrate to which the protrusion portion is fixed from the inside of the inclined surface of the bottom portion in a direction opposite to the protruding direction of the protrusion portion, the sensor A lighting fixture that imparts resin elasticity in a protruding direction to the protruding portion of the sensor substrate that is locked to the substrate holding claw, and that makes the protruding portion contact the opening of the fixture.

The lid portion is formed separately from the case cover, a square hole is formed in the bent portion of the bottom portion of the case cover to fit the lid portion from the outside, and the lid portion is inside the square hole. The lid is formed at both ends of the plate portion, a plate portion that fits into the square hole and engages with the receptacle step, a cylindrical portion that penetrates through the center of the plate portion, and the plate portion. The lighting fixture according to claim 1, further comprising a claw portion that retains and locks to an edge portion of the square hole .