CN102884371A

CN102884371A - Attachment structure of lighting device

Info

Publication number: CN102884371A
Application number: CN2011800201626A
Authority: CN
Inventors: 大野达司; 小泉秀树; 田中敏裕
Original assignee: Matsushita Electric Industrial Co Ltd
Current assignee: Panasonic Holdings Corp
Priority date: 2010-04-23
Filing date: 2011-02-25
Publication date: 2013-01-16
Anticipated expiration: 2031-02-25
Also published as: JP5320505B2; CN102884371B; WO2011132459A1; JPWO2011132459A1

Abstract

In disclosed attachment structure of a lighting device, an elongated lighting device is incorporated between adjacent ceiling members. The lighting device is provided with: a light source; a light-guide member that guides light emitted from the light source to below the ceiling; and an elongated case body that houses the light source and the light-guide member. The light-guide member has: a light entrance surface that is elongated and that is at one end surface in the lengthwise direction; and a light-emitting surface that radiates illuminating light at one side surface in the lengthwise direction. The light source is provided facing the entrance surface of the light-guide member. Adjacent ceiling members are provided with a first and second holding piece that each protrude towards the rear of the ceiling from a pair of side edges that face each other. The lighting device is held in a manner so as not to protrude from the ceiling surface between the first and second holding pieces that face each other of adjacent ceiling members, and is attached to adjacent ceiling members by means of an anchor that successively penetrates the first holding piece, the case body, and the second holding piece in the given order at a position that is at least above the light-guide member.

Description

The installation constitution of lighting device

Technical field

The present invention relates to the installation constitution of lighting device.

Background technology

The utensil type illuminations such as illuminator or pendent lamp are normally descended in the illumination that is arranged at ceiling.These utensil type illuminations are mostly outstanding from the ceiling face, and the existence sense of this utensil type illumination is stronger etc., the less outward appearance of considering the interior space.At this, the illumination that has proposed to improve bathroom etc. presents effect, improve the installation constitution (with reference to the open 61-178215 communique of Japanese Utility Model) of functional utensil type illumination of the enjoyment of balneation etc.Particularly, a plurality of illumination box bodys that make side-looking L word shape and lower opening are connected with ceiling with the transverse part side with vertical section side and install, and set illuminating lamp in the vertical section of each box body that throws light on, and in the lower opening of the box body that throws light on shutter are installed.In the installation constitution of this utensil type illumination, because shutter is concordant with the ceiling face, so realized the clean and tidy interior space.In addition, can form shade by vertical section and transverse part, present diversified illuminating effect.

But, in the installation constitution of above-mentioned utensil type illumination, owing to constituting illuminating lamp is installed from the indoor, so the apparent size of the lower opening of the illumination box body of observing from the indoor and shutter mounted thereto becomes large, it exists sense to be emphasized, outward appearance may variation.

Summary of the invention

So, the object of the invention is to, a kind of installation constitution that can suppress the existence sense of the lighting device observed from the indoor and bring the lighting device of the clean and tidy interior space is provided.

The installation constitution of the lighting device of the present invention rectangular lighting device of between adjacent ceiling parts, packing into.Lighting device possess light source, will be from the light of light source irradiation to ceiling under leaded light light conductor and hold light source and the rectangular casing of light conductor.Light conductor is rectangular, and has the plane of incidence of light at an end face of length direction, has the light-emitting area that penetrates as illumination light in a side of length direction.Light source is opposite to the plane of incidence of light conductor and arranges.Adjacent ceiling parts possess from mutual opposed a pair of side end respectively to the 1st and the 2nd outstanding retention tab of ceiling back side direction.Lighting device is clamped between the mutual opposed the 1st and the 2nd retention tab of adjacent ceiling parts, so that it is not outstanding from the ceiling face, and at least in the position than the top side of light conductor, be installed on the adjacent ceiling parts by the affixed instrument that penetrates into continuously successively in the 1st retention tab, above-mentioned casing, above-mentioned the 2nd retention tab.

According to this invention, because lighting device is installed on the adjacent ceiling parts in the position than the top side of light conductor at least by affixed instrument, and then, affixed instrument connects for 3 parts one-time continuous ground, give the clean and tidy interior space so can suppress the existence sense of the lighting device observed from the indoor, can improve fitting operation.

In addition, in the installation constitution of lighting device of the present invention, preferably, casing has the 1st and the 2nd side plate that is connected to respectively on the 1st and the 2nd retention tab and web that the 1st and the 2nd side sheet room is linked and forming.And, in the underside area of the web that is surrounded by web and the 1st and the 2nd side plate, hold light conductor.

In addition, in the installation constitution of lighting device of the present invention, preferably, in the upper-side area of the web that is surrounded by web and the 1st and the 2nd side plate, insert affixed instrument, lighting device is installed on the 1st and the 2nd retention tab.

In addition, in the installation constitution of lighting device of the present invention, preferably, on the 1st and the 2nd side plate of casing, be respectively equipped with 1st and 2nd hooking sheet outstanding from lateral surface to foreign side.And the 1st and the 2nd hooking sheet is stuck on the leading section of the 1st and the 2nd retention tab, and casing is bearing on the 1st and the 2nd retention tab.

In addition, in the installation constitution of lighting device of the present invention, preferably, web is cut open, and light source can be contained in the casing with dismantling upward.

In addition, in the installation constitution of lighting device of the present invention, preferably, possesses the rectangular cover body of the underside area that covers web.This cover body has respectively the 1st and the 2nd and locks calvus on the two ends of short side direction, be formed with respectively the 1st and the 2nd engaging recessed part on the 1st and the 2nd side plate.And the 1st and the 2nd locks calvus is stuck in the 1st and the 2nd engaging recessed part, and cover body is installed on the casing.

In addition, in the installation constitution of lighting device of the present invention, preferably, being respectively equipped with liner between the 1st locking calvus and the 1st retention tab and between the 2nd locking calvus and the 2nd retention tab, the gap that is formed between cover body and the 1st and the 2nd retention tab is blocked.

In addition, in the installation constitution of lighting device of the present invention, preferably, light source possesses a plurality of light sources, and light conductor possesses a plurality of light conductors that are arranged as a straight line along the length direction of casing.A plurality of light conductors form respectively in the size of above-below direction so that compare with the 1st end face as the plane of incidence, less with the 2nd end face of plane of incidence opposition side, and be configured to, make the 2nd end face butt of the 1st end face and adjacent light conductor.A plurality of light sources are configured in respectively the top of the 2nd end face separately of a plurality of light conductors.

In addition, in the installation constitution of lighting device of the present invention, preferably, a plurality of light conductors form respectively wedge shape.

Description of drawings

Record and narrate in more detail preferred embodiment of the present invention.With reference to following detailed record and accompanying drawing, can understand better other features and advantages of the present invention.

Figure 1A is the stereogram of an embodiment of the installation constitution of expression lighting device of the present invention.

Figure 1B is the A-A line cutaway view of Figure 1A.

Fig. 2 is the B-B line cutaway view of Figure 1A.

Fig. 3 is the stereogram of light source cell.

Fig. 4 is the exploded perspective view of lighting device.

Fig. 5 is that the explanation light source cell is to the exploded perspective view of the installation of casing.

Fig. 6 is the exploded perspective view of the installation of explanation lighting device.

The specific embodiment

Below, with reference to the description of drawings embodiments of the present invention.

Figure 1A is the stereogram of an embodiment of the installation constitution of expression lighting device of the present invention, and Figure 1B is the A-A line cutaway view of Figure 1A.Fig. 2 is the B-B line cutaway view of Figure 1A.Fig. 3 is the stereogram of light source cell.Fig. 4 is the exploded perspective view of lighting device.Fig. 5 illustrates light source cell to the exploded perspective view of the installation of casing, and Fig. 6 is the exploded perspective view of the installation of explanation lighting device.

Ceiling parts 40 are component parts of the ceiling of unit, bathroom etc., in the present embodiment, consist of the ceiling (with reference to Figure 1A) of unit, bathroom 60 with two ceiling parts 40,40.Ceiling parts 40 form rectangular-shaped by the such metal of steel plate or aluminium sheet or synthetic resin etc., on of 4 side ends (4 limit) 41a of the panel part 41 that lower surface exposes in the bathroom, spread all over total length and form towards the outstanding flat retention tab 42(of ceiling rear side (upside) with reference to Figure 1B and Fig. 6).

That is, as shown in Figure 1B,

adjacent ceiling parts

40,40 possess from mutual opposed a pair of side end 41a respectively to the outstanding retention tab (the 1st and the 2nd retention tab) 42,42 of the inboard direction of ceiling.In addition, in the following description, be denoted as retention tab 42 or two

retention tabs

42,42.

On retention tab 42, be provided with the 4 through hole 45(of place with reference to Fig. 6 with predetermined distance in the longitudinal direction).This through hole 45 is holes that affixed instrument 50 described later inserts, and its quantity, position be especially restriction not.On the ceiling parts 40 in two ceiling parts 40, be provided with can dismounting the access hole 44 of installation and repairing lid 43 freely.Two ceiling parts 40 are respectively so that i.e. the 1st and the 2nd retention tab of retention tab 42,42() opposed mode configures, and lighting device 1 is installed between

opposed retention tab

42,42.

Lighting device 1 is with the illumination of wire alight, possesses (with reference to Fig. 4): light guide 2; Light source cell 10 penetrates light to this light guide 2; And casing 20, hold light guide 2 and light source cell 10.Light guide 2 both can be single also can be a plurality of, in the situation that a plurality of, arrange along its length and be contained in the casing 20.In the present embodiment, 4 light guides 2 are arranged in the longitudinal direction so that the end of adjacent light guide 2 each other the mode of butt configure continuously.Its length direction total length is roughly consistent with the length on 1 limit of the ceiling parts 40 that are formed with retention tab 42.Light source cell 10 is provided with 4 corresponding to the quantity of light guide 2, if but in the longitudinal direction continuously configuration of light guide 2 then also can be the quantity below 4.

Light guide 2 has light transmission by the resins such as allyl resin or polycarbonate resin or glass etc. and the higher parts of refractive index consist of.This light guide 2 is made of the rectangular parts of analysing and observe the essentially rectangular shape, and when observing from Fig. 4, the left side of length direction becomes plane of incidence 2a, and when observing from Fig. 2, the downside of length direction becomes the light-emitting area 2b that penetrates light as the illumination light of the interior space.More particularly, have the opposed a pair of side of long side from plane of incidence 2a(the 1st end face) towards the wedge type shape that the side (the 2nd end face, the i.e. right side of length direction) of its opposition side moves closer to, one of asymptotic a pair of side as light-emitting area 2b.

That is, light guide 2 forms as shown in Figure 2, in the size of above-below direction, compares with the 1st end face as plane of incidence 2a, and the 2nd end face of the opposition side of plane of incidence 2a is less.And, in adjacent two

light guides

2,2, so that plane of incidence 2a(the 1st end face of a light guide 2) with the mode of face (the 2nd end face) butt of the opposition side of the plane of incidence 2a of another light guide 2,4 light guides 2 are configured to a straight line.Thus, above the 2nd end face side of light guide 2, the space that can form to hold light source cell 10 described later.

In addition, by light guide 2 is formed the wedge type shape, can suppress the decay that causes because of interreflection from the light of plane of incidence 2a incident.In order to improve this effect, can the leaded light pattern that be used for diffusion optical guide is gone out be set in the side of the opposition side of light-emitting area 2b.The leaded light pattern for example forms by pasting the reflexive material of reflector plate or printing or evaporation in the side of the opposition side of light-emitting area 2b.In addition, the leaded light pattern also can be by carrying out groove processing or forming groove forming with the direction of the length direction quadrature of light guide 2.Such leaded light pattern can spread all over the length direction total length setting of light guide 2.

Light source cell 10 is made of the light sources such as LED 11, substrate 12 and the substrate box 13 that holds this substrate 12, can be contained in removably upward (with reference to Fig. 3) in the casing 20.

Light source 11 is equipped with single or multiple at substrate 12, in the mode of this light source 11 with the plane of incidence 2a arranged opposite of light guide 2, substrate 12 is installed in the substrate box 13, and substrate box 13 is installed in the casing 20.

Casing 20 is made of rigid elements such as the metals such as aluminium or synthetic resin, by the rectangular side plate 23 of opposed pair of plates shape, 23(namely, the 1st and the 2nd side plate) with this pair of side plates 23,23(the 1st and the 2nd side plate) between the flat rectangular web 21 that links form (with reference to Figure 1B and Fig. 4).Particularly, pair of side plates 23,23(the 1st and the 2nd side plate) mutually almost parallel ground configuration, between this pair of

side plates

23,23, dispose web 21 in the mode with side plate 23 quadratures, casing 20 forms analyses and observe roughly H word shape.By making such shape, effectively guaranteed the intensity of casing 20 self, suppressed deflection or the distortion of casing 20.Guaranteed that more effectively lighting device 1 is to the needed rigidity of the installation of ceiling parts 40.In addition, can also doublely do function as the strengthening part of ceiling parts 40.The intensity that is contained in the light guide 2 in the casing 20 also is reinforced, and also has the deflection of inhibition light guide 2 or the function of distortion.

Casing 20 is clamped between

adjacent ceiling parts

40,40 the

retention tab

42,42, the lateral surface of each side plate 23 and each retention tab 42 butts.

Each side plate 23 spreads all over the length direction total length and has the outstanding supporting slice 24(of inside side (direction towards opposed side) with reference to Figure 1B in the bottom).These supporting slice 24 supporting light guides 2 form with web 21 almost parallel ground.In addition, on each side plate 23, be formed with lower portion and inwardly cave in and the mounting portion 28 of supporting light source cell 10 side.

By web 21 and pair of side plates 23,23(the 1st and the 2nd side plate) in the zone that surrounds, than web 21 underside area Y on the lower in, light guide 2 is supported sheet 24 supportings and holds (with reference to Figure 1B).On the other hand, in the upper-side area X than web 21 top sides, affixed instrument 50 is passed the through hole 45 of above-mentioned retention tab 42 and inserts from foreign side, casing 20 is installed on the retention tab 42.Thus, affixed instrument 50 can not interfered mutually with light guide 2, and lighting device 1 is installed on the ceiling parts 40.

In the present embodiment, as described above,, be installed on the

adjacent ceiling parts

40,40 by affixed instrument 50 than light guide 2 top sides' position at least, thereby can suppress to bring the clean and tidy interior space from the existence sense of the lighting device 1 of indoor observation.

The supporting slice 24 of each side plate 23 away from each other, this leaves apart from d and is set as the degree slightly narrower than the width D of light guide 2, makes the light-emitting area 2b of light guide 2 not be supported as far as possible sheet 24 and blocks (with reference to Figure 1B and Fig. 4).On supporting slice 24, be provided with projection 25 and form stage portion 26 at the leading section upside.By light guide 2 being clamped between the stage portion 26 of each supporting slice 24, the stability that arranges of light guide 2 improves, and stably is contained in the casing 20.

Light guide 2 holding in the casing 20, by in the light-emitting area 2b of light guide 2 mode towards the interior space, insert and carry out from the end at the both ends of casing 20 to underside area Y.

On each side plate 23, be provided with in the longitudinal direction the through hole 27(of affixed instrument 50 corresponding to the through hole 45 of 4 places and retention tab 42 with reference to Fig. 2 and Fig. 6).By making affixed instrument 50 insert the through

hole

27,45 of logical side plate 23 and retention tab 42, lighting device 1 is installed on the retention tab 42.The distortion of the casing 20 when as far as possible suppressing affixed instrument 50 fastening is preferably through hole 27 is set near web 21.In addition, also can below web 21, at side plate 23 through hole 27 be set, affixed instrument 50 be passed the through

hole

27,45 and insert to underside area Y of side plate 23 and retention tab 42, lighting device 1 is installed on the retention tab 42.In the case, in the light guide 2 that is contained in underside area Y and the affixed instrument 50 hands-off positions of inserting, at side plate 23 through hole 27 is set.

So that be installed in the mode that the lighting device 1 on the

retention tab

42,42 is not given prominence to from ceiling face 41b, the position of the through hole 27 of the height (length from ceiling face 41b to the direction at the ceiling back side) of setting retention tab 42, the height (length from ceiling face 41b to the direction at the ceiling back side) of casing 20, side plate 23 etc.Also can be that lighting device 1 is to be installed on the

retention tab

42,42 with mode that ceiling face 41b is positioned at (concordant) on the same face.When lighting device 1 possesses cover body 30 described later, so that the face of the interior space side of cover body 30 is outstanding from ceiling face 41b or be positioned at mode on same with ceiling face 41b, lighting device 1 is installed on the

retention tab

42,42.

In the present embodiment, at side plate 23,23(the 1st and the 2nd side plate) on, be respectively equipped with tabular hooking sheet 29,29(1st and 2nd hooking sheet outstanding from lateral surface to foreign side), with hooking sheet 29,29(the 1st and the 2nd hooking sheet) be hooked into respectively retention tab 42,42(the 1st and the 2nd retention tab) leading

section

42a, 42a on, casing 20 is bearing in (with reference to Figure 1B) on the retention tab 42,42.Thus, when lighting device 1 is installed to ceiling parts 40, can prevent dropping of casing 20.In addition, the advantage that operability is improved.

In the present embodiment, lighting device 1 possesses the cover body 30(of covering underside area Y with reference to Figure 1B and 4).Cover body 30 is the flat parts that are made of transparent synthetic resin such as allyl resin or polycarbonate resins, is installed on

side plate

23,23 the lower portion.This cover body 30 on the both side ends of side, has respectively opposed locking calvus 31 overleaf, 31(the 1st and the 2nd locks calvus).

Locking calvus

31,31 back sides from cover body 30 project upward, form with cover body 30, on its leading section separately, are formed with the outstanding protuberance 32 of inside side.On the other hand, on the

side plate

23,23 that cover body 30 is installed, be formed with lower portion inwardly side's depression and

lock calvus

31,31

protuberance

32,32 respectively engaging recessed part 33,33(the 1st and the 2nd engaging recessed part of hooks).This engaging recessed part 33 is formed between supporting slice 24 and the mounting portion 28.By will lock

calvus

31,31

protuberance

32,32 and engaging recessed part 33,33(the 1st and the 2nd engaging recessed part) hook installs cover body 30, and with underside area Y sealing, thereby improves water proofing property and outward appearance.In addition, also can give various optical functions and improve illumination and present effect cover body 30.As optical function, such as giving lens function or giving prism pattern that the mountain section in V word cross section and paddy section alternately consist of continuously etc. diffusion patterned 34 to the rear side of casing 20.Thus, make anaclasis, reflection, can make the light that penetrates from light-emitting area 2b spread all over its universe becomes uniform lightness, and impression is improved.

In order to improve water proofing property, also can liner 37 be set in the rear side (retention tab side) that locks calvus 31.Namely, as shown in Figure 1B, in the present embodiment, lock calvus locking calvus 31(the 1st) with retention tab 42(the 1st retention tab) between and lock calvus 31(the 2nd locking calvus) and retention tab 42(the 2nd retention tab) between, be respectively equipped with liner 37,37.If lighting device 1 is clamped between the

opposed retention tab

42,42, the gap that then is formed between cover body 30 and the

retention tab

42,42 is blocked by

liner

37,37, can guarantee watertightness.Paste liner 37 outstanding to foreign side by the side end of cover body 30 and on the order difference part 36 that the protuberance 35 that forms and locking calvus 31 consist of.

In addition, in the present embodiment, at the both ends of casing 20, embedding has the end cap 39(that is formed by rigid elements such as synthetic resin with reference to Fig. 4).Thus, with the gap sealing at the both ends of casing 20.

Then, the installation to casing 20 describes to light source cell 10.

After being received into light guide 2 in the casing 20, carry out the installation of light source cell 10.

The substrate box 13 that consists of light source cell 10 is provided with continuously: the light source accommodation section 14 of case shape, have opening in the plane of incidence 2a of light guide 2 side, and hold substrate 12; With maintaining part 15, in casing 20 interior maintenance light source accommodation sections 14; This substrate box 13 forms roughly L word shape (with reference to Fig. 3) of side-looking.Maintaining part 15 is extended upward and is provided with the pair of side plates 17 that consists of light source accommodation section 14 and forms, and is formed with a pair of through hole 16 at the upper portion of its side plate 17.On the web 21 of casing 20, the portions cut of light source cell 10 will be installed and form opening 22, by this opening 22, upper-side area X is communicated with underside area Y.Light source cell 10 carries out to the installation of casing 20 is following: be inserted into the opening 22 of web 21 and pushing from the top, until mounting portion 28 butts (with reference to Fig. 5) of substrate box 13 and side plate 23.Thus, light source accommodation section 14 is configured among the underside area Y, maintaining part 15 is configured among the upper-side area X.The light source accommodation section 14 that is configured among the underside area Y is opposed with the plane of incidence 2a that is contained in equally the light guide 2 among the underside area Y, penetrates light from the light source 11 that carries on the substrate 12 of light source accommodation section 14 towards the plane of incidence 2a of light guide 2.

On the

side plate

23,23 of casing 20, at

hooking sheet

29,29 upside, be provided with respectively with

retention tab

42,42 through

hole

45,45 corresponding through holes 38,38(with reference to Fig. 5).Under the state that substrate box 13 is contained in the casing 20, connection tools such as pin 54, screw 53 are inserted lead in maintaining part 15 and

side plate

23,23 the through

hole

16,38,38, thereby can stably be installed in the casing 20.

The casing 20 of such structure and light source cell 10 are by pulling down connection tool 53 from maintaining part 15 and

side plate

23,23 through

hole

16,38,38, can light source cell 10 easily be pulled down upward from casing 20, and can install from the top insertion.Therefore, light source cell 10 easily can be changed, maintenance etc., maintainability and operability are good.

The lighting device 1 of structure as described above can be installed during to the installation of a plurality of Wall boards 62 of the wall that consists of unit, bathroom 60 at

ceiling parts

40,40.

Unit, bathroom 60 is generally assembled water-proof plate, bathtub 61, Wall board 62,

ceiling parts

40,40 at the scene and is consisted of (with reference to Figure 1A).For example, form the Wall board mounting portion on the top of holding up of the outer end of water-proof plate, a plurality of Wall boards 62 of mounting on this Wall board mounting portion.Then, mode with upper opening 63

usefulness ceiling parts

40,40 shutoff in the space that will be surrounded by Wall board 62, be installed on the Wall board 62 and assembling unit, bathroom 60, but in the present embodiment, lighting device 1 is installed when

ceiling parts

40,40 installation.

That is, as shown in Figure 6, the 1st ceiling parts 40 configurations in two

ceiling parts

40,40 are installed as, the 3 side end 41a that do not form retention tab 42 are consistent with the upper end 62a of Wall board 62.Then, so that the mode of the leading section 42a hook of the retention tab 42 of hooking sheet 29 and the 1st ceiling parts 40 makes side plate 23 and retention tab 42 butts, thus configuration lighting device 1.In the situation that hooking sheet 29 is not set, in the mode of side plate 23 with retention tab 42 butts, at opposed a pair of Wall board 62 configuration lighting devices 1.At this moment, lighting device 1 becomes its both ends and is erected at state in the bathroom by 62 supportings of a pair of Wall board.

Then, the retention tab 42 of the 2nd ceiling parts 40 is installed on the Wall board 62 with side plate 23 butts.Thus, lighting device 1 is clamped in (temporary fixed state) between the

opposed retention tab

42,42, and the upper opening 63 in the space that is surrounded by the Wall board 62 in bathroom is by two

ceiling parts

40,40 and lighting device 1 sealing.

Then, from the inside of unit, bathroom 60, pass the access hole 44 of ceiling parts 40, use the such affixed instrument 50 of bolt 51, nut 52 that the lighting device 1 of temporary fixed state is fixed on the retention tab 42,42.Particularly, pass the access hole 44 of ceiling parts 40 from the inside of unit, bathroom 60, bolt 51 inserted led to retention tab 42,42(the 1st and the 2nd retention tabs) through

hole

45,45 and the through hole 27 of casing 20 in, fastening with nut 52.

Namely, the lighting device 1 of present embodiment as shown in Figure 1B, the bolt 51 of affixed instrument 50 connects continuously according to the order (order of the 1st retention tab, casing, the 2nd retention tab) of retention tab 42, casing 20, retention tab 42, thereby be installed on the

ceiling parts

40,40, so can once 3 parts be fixed by enough 1 affixed instruments 50, compare with the installation constitution of enumerating in past case, the quantity of affixed instrument is also less, and fitting operation is good.In addition, the width dimensions of casing 20 is set littlely than the length dimension of bolt 51.

The lighting device 1 that is installed in like this on the

ceiling parts

40,40 is outstanding from ceiling face 41b, so suppressed from the existence sense of the lighting device 1 of bathroom side observation.Can bring the clean and tidy interior space, and improve aesthetic property.

Above, based on embodiment the present invention has been described, but the present invention is not limited by above-mentioned embodiment fully, can carry out various changes in the scope that does not break away from its purport.For example, in the above-described embodiment, the web of casing is by otch, and lighting unit can carry out dismounting upward, but also casing can be made assembling 2 dividing bodies freely, makes casing assembling and with the structure of clamping lighting unit.In addition, in the above-described embodiment, light source cell is undertaken by connection tool and affixed instrument respectively to the installation of retention tab independently to installation and the casing of casing, but also their installation can be carried out by an affixed instrument.For example, the through hole that also can consider to be located at the connection tool on the light source cell is set to the position corresponding with the through hole of casing and retention tab and makes affixed tool inserting lead to structure in these through holes.

The present invention is is preferred embodiment recorded and narrated some, but for a person skilled in the art, can not break away from original purport and scope of the present invention, be the scope of claims and carry out various corrections and distortion.

Claims

1. the installation constitution of a lighting device, the rectangular lighting device of between adjacent ceiling parts, packing into, wherein,

Above-mentioned lighting device possesses: light source; Light conductor, will be from the light of above-mentioned light source irradiation to ceiling under leaded light; With rectangular casing, hold above-mentioned light source and above-mentioned light conductor,

Above-mentioned light conductor is strip, and has the plane of incidence of light at an end face of length direction, has the light-emitting area that penetrates as illumination light in a side of length direction,

The above-mentioned plane of incidence of above-mentioned light source and above-mentioned light conductor arranges opposed to each other,

Above-mentioned adjacent ceiling parts possess the 1st and the 2nd retention tab of giving prominence to the inboard direction of ceiling respectively from mutual opposed a pair of side end,

The mode of above-mentioned lighting device not give prominence to from the ceiling face, be clamped between the mutual opposed the above-mentioned the 1st and the 2nd retention tab of above-mentioned adjacent ceiling parts, and at least than the top side's of above-mentioned light conductor position, affixed instrument by the order with above-mentioned the 1st retention tab, above-mentioned casing, above-mentioned the 2nd retention tab connects continuously is installed on the above-mentioned adjacent ceiling parts.

2. the installation constitution of lighting device as claimed in claim 1, wherein,

Above-mentioned casing has respectively and the above-mentioned the 1st and the 1st and the 2nd side plate of the 2nd retention tab butt and web that the 1st and the 2nd side sheet room is linked and form, and holds above-mentioned light conductor in the underside area of the above-mentioned web that is surrounded by above-mentioned web and the above-mentioned the 1st and the 2nd side plate.

3. the installation constitution of lighting device as claimed in claim 2, wherein,

In the upper-side area of the above-mentioned web that is surrounded by above-mentioned web, the above-mentioned the 1st and the 2nd side plate, insert above-mentioned affixed instrument, above-mentioned lighting device is installed on the above-mentioned the 1st and the 2nd retention tab.

4. the installation constitution of lighting device as claimed in claim 2 or claim 3, wherein,

On the above-mentioned the 1st and the 2nd side plate of above-mentioned casing, be respectively equipped with 1st and 2nd hooking sheet outstanding from lateral surface to foreign side, the the 1st and the 2nd hooking sheet respectively with the leading section hook of the above-mentioned the 1st and the 2nd retention tab, above-mentioned casing is bearing on the above-mentioned the 1st and the 2nd retention tab.

5. such as the installation constitution of each described lighting device in the claim 2～4, wherein,

Above-mentioned web is by otch, and above-mentioned light source can be contained in the above-mentioned casing with dismantling upward.

6. such as the installation constitution of each described lighting device in the claim 2～5, wherein,

The rectangular cover body that possesses the underside area that covers above-mentioned web, this cover body has respectively the 1st and the 2nd and locks calvus on the two ends of short side direction, on the above-mentioned the 1st and the 2nd side plate, be formed with respectively the 1st and the 2nd engaging recessed part, the the above-mentioned the 1st and the 2nd lock calvus respectively with the 1st and the 2nd engaging recessed part hook, above-mentioned cover body is installed on the above-mentioned casing.

7. the installation constitution of lighting device as claimed in claim 6, wherein,

Being respectively equipped with liner between above-mentioned the 1st locking calvus and above-mentioned the 1st retention tab and between above-mentioned the 2nd locking calvus and above-mentioned the 2nd retention tab, the gap that is formed between above-mentioned cover body and the above-mentioned the 1st and the 2nd retention tab is blocked.

8. the installation constitution of lighting device as claimed in claim 1, wherein,

Above-mentioned light source possesses a plurality of light sources;

Above-mentioned light conductor possesses a plurality of light conductors that are arranged as a straight line along the length direction of above-mentioned casing;

Above-mentioned a plurality of light conductor forms respectively, in the size of above-below direction, compares with the 1st end face as the plane of incidence, and the 2nd end face of the opposition side of the plane of incidence diminishes, and is configured to, the 2nd end face butt of above-mentioned the 1st end face and adjacent light conductor;

Above-mentioned a plurality of light source is configured in respectively the top of the 2nd end face separately of above-mentioned a plurality of light conductors.

9. the installation constitution of lighting device as claimed in claim 8, wherein,

Above-mentioned a plurality of light conductor forms respectively wedge shape.