JP2709878B2 - lighting equipment - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a lighting fixture directly mounted on a fixture mounting surface.

[0002]

2. Description of the Related Art Conventionally, as shown in FIG. 11, a so-called hooking ceiling 2 provided on an equipment mounting surface such as a ceiling surface 1 is shown.
There is known a lighting device in which the device main body 3 is detachably and directly mounted on the ceiling surface 1 or the like by using the lighting device.

The hooking ceiling 2 is mechanically fixed in advance to the ceiling surface 1 or the like, and is electrically connected to a power supply line (not shown). 5 are formed. And
Each of the connecting portions 5 and 5 is provided with an arc-shaped contact that serves both as a mechanical locking mechanism and an electrical connecting mechanism, and has an insertion portion having a large width at one end. ing.

[0004] A cylindrical socket portion 6 whose upper surface is closed is provided substantially at the center of the upper surface of the instrument body. The socket portion 6 is formed of a conductive metal plate or the like upward. A pair of mounting claws 7, 7 having a substantially L-shaped cross section are protruded. These mounting claws 7, 7 are mechanically fixed to the appliance body 3 via the socket 6, and are electrically connected to electric components such as the lighting unit 8 housed therein.

As shown in FIGS. 11 and 12, lamp holders 10 and 11 made of a leaf spring material or the like are attached to the apparatus main body 3, and an annular fluorescent lamp is formed by the elasticity of the leaf spring material. L is held. And FIG.
The lamp holder 10 shown in FIG. 1 is formed by bending a band-shaped leaf spring material into a substantially V-shape and forming an arc-shaped lamp holding portion at each end. The lamp holder 11 shown in FIG. The plate spring material 13 bent in an arc shape is caulked to 12 and connected approximately C
It is formed in a character shape.

Further, a body cover 15 for covering the lighting unit 8 and the like is attached to the instrument body 3, and a support bracket (support) 16 is attached to the body cover 15, and is screwed to the support bracket 16. With the decorative screw 17
A bowl-shaped shade body 18 is detachably attached.

The fluorescent lamp L is provided with a lamp holder 10,
While being elastically supported by 11, the base is electrically connected to the lighting unit 8 via a lamp socket 19, a lead wire 20, and the like.

When the device body 3 is directly mounted on the ceiling surface 1, the device body 3 is lifted with the shade body 18 removed, and the mounting claws 7, 7 are inserted into the insertion portion of the hooking ceiling 2. By rotating the instrument main body 3 in a predetermined direction in the inserted state, the mounting claws 7, 7 are mechanically locked to the contact points and electrically connected to mechanically hold the instrument main body 3. Connect to power line. Then, in a state where the lamp holders 10 and 11 are expanded against the urging force, the fluorescent lamp L is inserted and held, and the lamp socket 19 is connected to the base. Further, the outer peripheral portion of the shade body 18 is fitted to the outer edge of the instrument body 3, and a decorative screw 17 is screwed to the support fitting 16 via the shade body 18, and the shade body 18 is attached to the instrument body 3.
It is designed to be attached to.

[0009]

However, according to the above-described conventional structure, with the mounting claws 7 of the instrument body 3 being inserted into the respective insertion portions of the hooking ceiling 2, the instrument body 3 is fixed to a predetermined position. There is a problem that the operation of rotating in the direction is required, and the mounting operation is complicated.

Further, the instrument body 3 is attached to the ceiling surface 1 or the like only by engaging the mounting claws 7, 7 protruding from the socket portion 6 provided substantially at the center of the upper surface with the hooking ceiling 2. In particular, in order to mount the heavy instrument body 3 stably while keeping it horizontal with respect to the ceiling surface 1, it is necessary to improve the strength of the socket portion 6, and the production efficiency is poor. have.

Further, when the appliance body 3 is mounted on the ceiling surface 1, the line of sight is blocked by the appliance body 3 and the like, so that the hooking ceiling 2 provided on the ceiling surface 1 is difficult to see. The work of aligning the mounting claws 7, 7 with the respective insertion portions of the hooking ceiling 2 is complicated, the size of the tool body 3 is limited, and the upper surface of the tool body 3 is checked to confirm the position of the hooking ceiling 2. There is a problem that it is necessary to provide a predetermined gap between the ceiling surface 1 and the like.

SUMMARY OF THE INVENTION The present invention has been made in view of the above circumstances, and has as its object to provide a lighting fixture which can easily and stably mount a fixture main body on a fixture mounting surface.

[0013]

According to the first aspect of the present invention,
In a lighting fixture in which a fixture main body is attached via a fixture to a hooking ceiling installed on a fixture mounting surface, the fixture main body includes a lamp socket, a power plug electrically connected to the lamp socket, and the fixture. The mounting body is mechanically locked to the hooking ceiling and electrically connected thereto, and the mounting body is electrically connected to a power plug of the instrument main body. A power socket to be connected; and a mounting body side engaging portion that engages with the main body side engaging portion of the appliance main body while the power plug is electrically connected to the power socket, and holds the appliance main body. One of the main body side engaging portion and the mounting body side engaging portion is formed along a peripheral edge of any one of the instrument main body and the mounting body.

According to a second aspect of the present invention, in the lighting fixture of the first aspect, the fixture main body is provided with a contact piece elastically contacting the fixture mounting surface.

According to a third aspect of the present invention, in the lighting fixture according to the first or second aspect, the mounting body is provided with a see-through portion for visually checking a hooking ceiling installed on the fixture mounting surface via the mounting body. It is a thing.

[0016]

According to the first aspect of the invention, the mounting body is mechanically locked and electrically connected to the hooking ceiling by rotating after inserting the mounting claw into the hooking ceiling. A power socket and a mounting body side engaging portion are provided on the mounting body, a power plug and a main body side engaging portion are provided on the appliance body, and the mounting body side engaging portion is provided in a state where the power socket and the power plug are electrically connected. The tool main body is mechanically supported by the mounting body by engagement with the main body side engaging portion.

According to the second aspect of the present invention, the contact piece provided on the instrument body elastically contacts the instrument mounting surface, so that the instrument body can be stably mounted in a state where it is horizontal with respect to the instrument mounting surface. Can be

According to the third aspect of the present invention, the hooking ceiling provided on the instrument mounting surface can be visually recognized through the mounting body by the see-through portion provided on the mounting body, so that the positioning of the hooking ceiling and the mounting body is easy. become.

[0019]

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a perspective view of a lighting apparatus according to an embodiment of the present invention.

In FIG. 1 and FIG. 2, reference numeral 21 denotes a ceiling surface as an instrument mounting surface, and a so-called hooking ceiling 22 is mounted on the ceiling surface 21.

The hooking ceiling 22 has a case body 23 of a round or square shape, and the upper surface of the case body 23 is mechanically fixed to the ceiling surface 21.

On the lower surface of the case body 23, a pair of arc-shaped grooves 25, 25 are formed, and each of the grooves 25, 25 is formed.
Are formed at one ends thereof with insertion portions 26, 26 having a large width dimension. Also, inside the case body 23, each groove 2
A pair of contacts (not shown) which serve both as a mechanical locking mechanism and an electrical connection mechanism are provided along 5 and 25. A power supply line wired in the ceiling is electrically connected to each contact.

In FIGS. 1 to 3, reference numeral 31 denotes a mounting body. The mounting body 31 has a substantially cylindrical outer cylindrical portion 33 and an inner cylindrical portion provided concentrically inside the outer cylindrical portion 33. The lower surface between the outer tubular portion 33 and the inner tubular portion 34 is closed by an annular bottom plate 35. Inside the inner tube portion 34, a socket portion 37 having a substantially rectangular box shape having both ends fixed to the inner tube portion 34 is provided, and both side portions along the longitudinal direction of the socket portion 37 and the inner portion are provided. The gap between the cylindrical portion 34 is a see-through portion 38 that is inserted vertically.

Further, a pair of mounting claws 41, 41 having a substantially L-shaped cross section and having conductivity are provided on the upper portion of the socket portion 37. These mounting claws 41, 41 are formed by bending a metal plate, for example, and their distal ends are bent in directions facing each other, and inserted into insertion portions 26, 26 formed in the case body 23 of the hooking ceiling 22. Engagement pieces 42, 42 of the dimensions to be obtained are formed.

A power socket 43 having a substantially rectangular box shape projects from the lower portion of the socket portion 37, and a pair of contact pieces 44, 44 are formed on the lower surface of the power socket 43.
Each of these contact pieces 44, 44 and each of the mounting claws 41, 41 are attached to the mounting body 31.
It is electrically connected inside.

Further, from the outer peripheral surface of the outer cylindrical portion 33 of the attachment body 31, an annular annular ridge 46 as an attachment side engaging portion is provided so as to project therefrom. On the upper surface of the annular ridge 46, a substantially horizontal locking surface 46a is formed.
On the lower surface of the sloping surface portion 46 sloping upward toward the outside
b is formed.

In FIG. 1 and FIG. 3, reference numeral 51 denotes an appliance main body, which comprises a chassis 52, a lighting unit 53 and the like.

The chassis 52 has a substantially annular plate-shaped board portion 54, and a rectangular plug fitting hole 55 into which the power socket 43 of the mounting body 31 is inserted at a substantially central portion of the board portion 54. And a peripheral portion of the plug fitting hole 55 is recessed downward through the side wall portion 56, and the outer cylindrical portion 33 of the mounting body 31 is formed.
A fitting recess 57 into which is fitted is formed. Mounting holes 57a are formed at a plurality of locations near the side wall portion 56 of the fitting concave portion 57.

The vicinity of the outer peripheral portion of the chassis 52 is provided with a flange portion 59 parallel to the substrate portion 54 through a step 58 directed downward.
Are formed. An outer end portion of the flange portion 59 is bent downward to form a shade fitting portion 60, and a lower end edge of the shade fitting portion 60 is bent outward to form a shade contact portion 61. Have been.

The shade fitting portion 60 of the chassis 52
A plurality of elongated holes 45 are formed in a plurality of positions, and a circular hole 65 is formed in the upper flange portion 59 of each of the through holes 64. Each shade body mounting device located inside the circular hole 65
66 are provided.

The shade body mounting device 66 is shown in FIGS.
As shown in FIGS. 5 and 6, a case (slide box) 67 is provided along the flange portion 59 and the shade fitting portion 60. This case body 67 is
52 is a rectangular box-like plane whose longitudinal direction is the radial direction, with the upper part and the upper part of the outer side cut out and opened,
A screw receiving portion 68 protrudes inward at the upper part of one end,
Further, a locking step 69 is formed along the periphery of the opening on the upper surface.

The opening on the upper surface of the case 67 is
It is closed by a rectangular lid plate 71 locked by the locking step 69. The cover plate 71 is fixed to the case body 67 by a screw 72 screwed into the screw receiving portion 68, and is coaxial with the circular hole 65 of the flange portion 59 of the chassis 52.
A mounting hole 73 having a smaller diameter than that of the case body 67 is formed.
Is communicated with the upper side of the chassis 52.

In the lower portion inside the case body 67, a slide body 75 slidably fitted in the longitudinal direction of the case body 67, that is, in the radial direction of the chassis 52 is housed. The slide body 75 has a substantially box shape with an open lower surface and an outer surface. A long hole 76 is formed in a substantially central portion of the upper surface along a longitudinal direction, and the slide body 75 slides inward from a lower end portion on the inside. A plate 77 is protruded, and a locking piece 78 is further protruded outward from the outer upper end. The locking piece portion 78 has a substantially horizontal locking surface portion 78a on the upper surface, and an inclined surface portion 78b on both sides of the lower surface inclined upward and outward.

The slide body 75 is urged outward by a coil-shaped spring body 79 provided on the upper part of the slide plate 77. It projects outside the shade fitting portion 60 of the chassis 52 with the opening on the outer side surface and the through hole 64 of the chassis 52 inserted therethrough.

Reference numeral 81 denotes a slide shaft.
81, a sliding contact plate 83 housed inside the case body 67 and slidably inserted into the elongated hole 76 of the slide body 75;
Of the cover plate 71 and the chassis 52
And a substantially cylindrical mounting shaft 84 which slidably passes through the circular hole 65. Then, at the inner end of the sliding contact plate 83,
A sliding contact portion 83a which is inclined upward toward the inside is formed,
The sliding contact portion 83a is in sliding contact with the inner end of the elongated hole 76 of the slide 75. A coil-shaped spring body 86 is provided around a mounting shaft 84 protruding from the upper part of the chassis 52.
Is wound, and a release button 87 is attached to the upper end of the mounting shaft 84, and the slide shaft 81 is urged upward by the spring body 86 via the release button 87.

When assembling the shade body attaching device 66, first, a slide body 75,
With the spring body 79 and the slide shaft 81 inserted, the opening on the upper surface of the case body 67 is closed by the cover plate 71.
Then, with the spring body 86 wound around the mounting shaft 84 of the slide shaft 81, the mounting shaft 84 and the spring body 86 are inserted from below into the circular hole 65 of the chassis 52, and the locking piece of the slide body 75 is The case 78 is fixed to the chassis 52 by inserting the portion 78 into the through hole 64 of the chassis 52 from the inside. Then, the release button 87 is attached to the upper end of the slide shaft 81.

Then, in this state, the release button 87 is pushed downward against the urging force of the spring body 86, so that the slide contact portion 83a of the slide contact plate 83 of the slide shaft 81 moves the length of the slide body 75. The sliding body 75 slides in contact with the inner end of the hole 76 and pushes the sliding body 75 in a direction orthogonal to the moving direction of the slide shaft 81, and moves the sliding body 75 inward against the urging force of the spring body 79. The locking piece 78 of the slide body 75 is retracted inward.

The side wall 56 of the fitting recess 57 of the chassis 52
A plurality of elongated rectangular through holes 91 are formed at a plurality of locations, and a main body mounting device 92 as a main body side engaging portion is provided outside the through hole 91. The main body mounting device 92 is the same as the shade body mounting device 66, and a slide body 94 is housed inside a case body 93, and the locking piece 95 of the slide body 94 always passes through the through hole 91. As a result, the protrusion protrudes inside the fitting recess 57. The locking piece 95 has a substantially horizontal locking surface 95a formed on the lower surface thereof, and a slanted surface portion 95b inclined downward toward the inside of the fitting recess 57 on the upper surface thereof. ing.

A release button projecting downward is provided.
By pushing the 96, the locking piece 95 of the slide body 94 is retracted outward.

On the upper surface of the substrate portion 54 of the chassis 52,
For example, a contact piece formed by bending a leaf spring material etc. into a substantially rectangular shape
101 is installed. This contact piece 101 has one end 102
Is supported on the lower surface side of the substrate portion 54 through a through hole 103 provided in the substrate portion 54, and is curved in an arc toward the upper side of the other end portion 104 to form a contact portion 105.

A lighting unit 53 is attached to the lower surface of the fitting recess 57 of the chassis 52. As shown in FIGS. 1, 3 and 4, the lighting unit 53 includes a bowl-shaped unit cover 110 having an open upper surface, a lighting device 111 housed inside the unit cover 110, and the like. Unit cover corresponding to 52 mounting holes 57a
It is fixed to the lower surface of the fitting concave portion 57 of the chassis 52 by a screw (not shown) screwed into a plurality of screw holes 112 formed in 110.

A power supply plug 114 is provided substantially at the center of the upper surface of the lighting device 111. The power plug 114 has a rectangular pedestal portion 115 and a pair of rod-shaped terminal bodies 116, 116 protruding from the pedestal portion 115, and is inserted into the plug fitting hole 55 of the chassis 52. Thus, the respective terminals 116, 116 are inserted into the contact pieces 44, 44 on the lower surface of the power socket 43, respectively, and are electrically connected. Further, at one end of the upper surface of the lighting device 111,
A terminal block 117 having a plurality of connection terminals provided on an upper surface is provided.

The unit cover 110 is provided with the lighting device 11.
The vicinity of the first terminal block 117 and the upper end of the opposite side of the terminal block 117 are respectively cut out in a substantially U-shape to form a lamp socket fitting groove 122 and a lamp holder fitting groove 123, respectively. A lamp socket 125 and a lamp holder 126 are fitted and mounted in these fitting grooves 122, 123, respectively.

The lamp socket 125 has a function as a lamp holder for mechanically holding a pair of large and small annular fluorescent lamps L ₁ and L ₂ as lamps, and a base for these fluorescent lamps L ₁ and L ₂ . It is electrically connected to the parts L _1a and L _2a , and is fitted into a plurality of substantially C-shaped lamp holding parts 131 for holding the respective fluorescent lamps L ₁ and L ₂ and the lamp socket fitting groove 122. A pair of grooves 132a held as
A fitting portion 132 having a substantially H-shape in plan view and a lighting device 111;
A plurality of pins and a connector portion 133 which projects are electrically connected to have the fluorescent lamp L ₁ to the connector portion 133, L ₂ of the base part L _1a to be connected to the terminal block 117 electrically,
And a like socket portion 134 which is electrically connected to the L _2a.

Then, with the fitting portion 132 fitted in the lamp socket fitting groove 122, the connector portion 133 is turned on by the lighting device 11.
1 are electrically connected to the terminal block 117, and the fluorescent lamps L ₁ and L ₂ are turned on through the lamp socket 125.
It is designed to be electrically connected to.

As shown in FIGS. 7 to 10, each lamp holding portion 131 has an upper frame 136 fixed to a lamp socket 125 and a lower frame 136 rotatably engaged with the upper frame 136. The frame 137 has a substantially C shape.

The upper frame 136 has an arc-shaped upper holding portion 141 which contacts the outer peripheral surfaces of the fluorescent lamps L ₁ and L _2.
And an upper hinge portion 142 bent outward from one end of the upper holding portion 141. A hinge groove 143 is formed in the upper hinge portion 142 along the longitudinal direction.
A pair of semi-cylindrical ridges (ribs) 144, 145 are provided at predetermined intervals on both sides along the longitudinal direction. Further, a protrusion (boss) 147 is provided between the protrusions 144, 145, respectively. Furthermore, the hinge groove 143 is formed in the upper holding portion 141 continuously to the hinge groove 143.
An insertion hole 148 having a slightly larger width dimension is formed.

The lower frame 137 is formed of a band-shaped plate material slightly thinner than the upper frame 136, and has an arc-shaped lower holding portion 15 which is in contact with the outer peripheral surfaces of the fluorescent lamps L ₁ and L _2.
1 and a lower hinge portion 152 bent outward from one end of the lower holding portion 151. The width dimension of the lower hinge portion 152 is smaller than the width dimension of the insertion hole 148 of the upper frame 136, and
3 is larger than the width dimension. In addition, lower holding part
The bent portion between the lower hinge portion 152 and the lower hinge portion 152 is cut off on both sides, is smaller than the width dimension of the hinge groove 143, and is the shortest distance between the protrusions 144, 145 and the protrusions 147, 147 facing in both directions. An engagement plate portion 153 having a width slightly larger than the size is formed.

The lower frame 137 is connected to the lower hinge 15
2 from the insertion hole 148 of the upper frame 136, and
3 is attached to the upper frame 136 while being inserted into the hinge groove 143 while elastically expanding between the protrusions 144 on the insertion hole 148 side. Then, the engaging plate portion 153 is formed by the protrusion on the insertion hole 148 side.
In a state fitted between 144, 144 and the protrusions 147, 147,
The upper holding portion 141 and the lower holding portion 151 approach each other to hold the fluorescent lamps L ₁ and L ₂ , and rotate the lower frame 137 so that the engagement plate portion 153 expands between the projections 147 and 147. The engaging plate 153 passes through the ridge 14 on the tip end side of the upper hinge portion 142.
The upper and lower clamping portions 141 and 151 are separated from each other with the fluorescent lamps L ₁ and L ₂ opened when fitted between the projections 147 and 147 and the projections 147 and 147. .

The lamp holder 126 has a pair of substantially H-shaped fitting portions 161 formed with a pair of grooves 161a which are fitted and held in the lamp holder fitting grooves 123. And a substantially C-shaped lamp support portion 163 provided at a plurality of positions of the arm portion 162 and elastically holding the fluorescent lamps L ₁ and L ₂ .

1 and 3, reference numeral 166 denotes a light-transmitting shade, which is formed in a bowl shape or a hemisphere covering the lower surface of the instrument body 51. An edge 167 at the upper end of the shade body 166 is bent outward in a substantially L-shaped cross section. Inside the edge 167, an annular mounting member having a substantially U-shaped cross section is provided. 168 are provided integrally. The attachment 168 has an upper plate 171 and a lower plate 172 provided in parallel with each other, and the corner between the inner end edge and the upper surface of the upper plate 171 has a curved surface portion 174 smoothly curved. On the other hand, the lower surface of the upper plate portion 171 is a flat locking surface portion 175.

Next, the mounting operation of the lighting equipment will be described.

First, a hanging ceiling 22 is installed on the ceiling surface 21 in advance, and is connected to a power supply line wired in the ceiling.

Next, the attachment body 31 is attached to the hooking ceiling 22. That is, the attachment body 31 is pushed up while being held below the hooking ceiling 22, and the see-through portion 38 of the attachment body 31 is raised.
The mounting claws 41, 41 are inserted into the insertion holes 26, 26 of the hooking ceiling 22, respectively, while visually checking the hooking ceiling 22. Then, the mounting body 31 is rotated in a predetermined direction to lock the mounting claws 41, 41 on the contacts of the hooking ceiling 22, and the mounting body 31 and the hooking ceiling 22 are mechanically and electrically connected.

Next, the fixture main body 51 connecting the lighting unit 53 and the chassis 52 to which the shade body mounting device 66 and the main body mounting device 92 are mounted is pushed up from the state where it is held below the mounting body 31, and With the outer cylindrical portion 33 of the attachment body 31 fitted into the fitting recess 57, the power plug 114
Are inserted into the contact pieces 44 of the power supply socket 43 of the mounting body 31 to be electrically connected. Thereby, the power supply line and the lighting device 111 of the appliance body 51 are electrically connected via the hooking ceiling 22 and the attachment body 31.

In the state where the instrument main body 51 is pushed up to fit the outer cylindrical portion 33 of the mounting body 31 into the fitting concave portion 57 of the chassis 52, first, the inclined surface portion 46b of the annular ridge 46 is moved to the chassis 52.
Then, the locking piece 95 of the body mounting device 92 provided in the above is brought into contact with and pressed against the inclined surface 95b of the locking piece 95, and the locking piece 95 is retracted inward.
Then, the device body 51 is further pushed up, and the locking piece 95
Is passed through the annular ridge 46, the locking piece 95 protrudes inside the fitting recess 57 by the biasing force of the spring body, and the locking surface 95a of the locking piece 95 locks the annular ridge 46. The tool body 51 is mechanically locked and held by the mounting body 31 while being brought into contact with and locked to the surface portion 46a, and the respective contact pieces 101 of the contact pieces 101 provided on the upper surface of the chassis 52 are held. The portions 105 respectively elastically contact the ceiling surface 21.

Then, with the lower frames 137 of the respective lamp holders 131 of the lamp socket 125 rotated downward and released, the respective fluorescent lamps L ₁ and L ₂ are moved to the upper frame 136 of the respective lamp holders 131. Of the fluorescent lamp L
_1, L ₂ of the base part L _1a, to electrically connect the L _2a in each socket portion 134. Then, in this state, thereby clamping the respective fluorescent lamps L _1, L ₂ and rotating the lower frame 137 upwardly, inserting each fluorescent lamp L _1, L ₂ in the lamp supporting portion 163 of the lamp holder 126 The fluorescent lamps L ₁ ,
The L ₂ mechanically holds.

Next, the shade body 166 is pushed up in accordance with the shade fitting portion 60 of the chassis 52. In this state, the shade body
The curved surface portion 174 of the upper plate portion 171 of the fixture 168 provided on the edge portion 167 of the 166 is the inclined surface portion of the locking piece 78 of the shade body attaching device 66.
The locking piece 78 abuts against and is pressed against the inner side of the case body 75b. And this upper plate part 171 is a locking piece part.
After passing through the locking piece 78, the locking piece 78 protrudes outward due to the urging force of the spring body 79, and the locking surface 78 of the locking piece 78.
a and the locking surface portion 175 of the upper plate portion 171 are abutted and locked,
Sade body 166 is mechanically held by instrument body 51. Further, in this state, the shade body contact portion 61 of the chassis 52 abuts on the lower plate portion 172 of the fixture 168, and the shade body 166 is stably mounted.

In this way, the lighting fixture of the present embodiment is directly mounted on the ceiling surface 21.

When replacing each of the fluorescent lamps L ₁ and L ₂ , the release button 87 of the shade body mounting device 66 is used.
Is pushed downward, the locking piece 78 of the shade body mounting device 66 retreats inward, and the locking piece 78 of the shade body mounting device 66 engages with the upper plate portion 171 of the shade body 166. Is canceled,
Sade body 166 is removed.

Further, a release button of the body mounting device 92
By pushing the 96 upward, the locking piece 95 of the main body mounting device 92 retreats inward, and the engagement between the locking piece 95 of the main body mounting device 92 and the annular ridge 46 of the mounting body 31 is released. Released, instrument body 51
Is removed from the mounting body 31.

According to the lighting fixture of this embodiment, the hooking ceiling 22 previously mounted on the ceiling surface 21 includes:
By attaching only the attachment body 31 first, the instrument body
Since it is possible to connect mechanically and electrically only by pushing up the 51 without rotating it, the lighting fixture can be easily mounted directly on the ceiling surface 21.

Further, since the see-through portion 38 is provided on the mounting body 31,
The hooking ceiling 22 can be visually observed through the see-through portion 38, and the alignment between the mounting claws 41, 41 of the mounting body 31 and the insertion hole 26 of the hooking ceiling 22 becomes easy. Can be easier.

The tool body 51 is mechanically and electrically connected to the mounting body 31 only by positioning and pushing up, and the shade body 166 is mechanically connected to the tool body 51 only by positioning and pushing up. Therefore, work such as turning the decorative screw is not required, and the work of mounting the lighting fixture can be facilitated.

The instrument body 51 and the shade body 166 are
Since the release buttons 87 and 96 can be easily removed only by pushing the release buttons 87 and 96, replacement of the lighting device 111 or the fluorescent lamps L ₁ and L ₂ can be facilitated.

Further, an annular ridge 46 serving as an attachment portion on the attachment body side.
Is formed along the outer peripheral surface of the mounting body 31, so that there is no need to accurately align the annular ridge 46 with the locking piece 95 of the appliance body 51, and the work of mounting the appliance body 51 is not necessary. Performance can be improved.

Further, since the contact pieces 101 provided at a plurality of positions on the upper surface of the chassis 52 are elastically contacted with the ceiling surface 21,
The mounted instrument body 51 can be stably held without swaying horizontally with respect to the ceiling surface.

The lamp socket 125 also has a function as a lamp holder, and the fluorescent lamps L ₁ and L ₂ are not elastically deformed by the upper frame 136 and the lower frame 137 of the lamp holding portion 131. Since the lamp holder 126 is fixedly held and the lamp holder 126 is not elastically deformed except for the lamp supporting portion 163, the fluorescent lamp L is compared with a conventional case where the fluorescent lamp is supported only by a lamp holder made of a plate spring or the like.
_1, L ₂ of the example, when detachable fluorescent lamp L _1, without L ₂ is moved, it is possible to facilitate such replacement work of the fluorescent lamp L _1, L _2.

Then, the lamp socket 125 is
Since the fluorescent lamps L ₁ and L ₂ can be held and opened by rotating the 137, the work of attaching and detaching the fluorescent lamps L ₁ and L ₂ is easier than the work of mounting with the leaf spring or the like expanded. In addition, it is possible to prevent the fluorescent lamps L ₁ and L ₂ from being impacted by the urging force of the leaf spring. Furthermore, since the lamp socket 125 is formed by engagement without caulking or the like, the assembling work of the lighting fixture can be facilitated.

In the lighting apparatus of this embodiment, the lamp holder 126 is formed separately from the unit cover 110, and is mounted by engaging with the lamp holder fitting groove 123. It can also be formed integrally with 110.

[0071]

According to the first aspect of the present invention, the mounting body is previously connected to the hooking ceiling provided on the mounting surface of the equipment, and then the main body is connected to the mounting body, and the power supply socket is mounted on the mounting body. In addition to providing the body side engaging portion, the power plug and the main body side engaging portion are provided on the appliance main body, and the mounting body side engaging portion and the main body side engaging portion are connected in a state where the power socket and the power plug are electrically connected. Since the fixture main body is mechanically supported by the mounting body by being engaged, no pivoting operation is required when the fixture main body is connected to the mounting body, and the lighting fixture can be easily mounted directly on the fixture mounting surface. .

Further, either one of the mounting body side engaging portion and the main body side engaging portion is formed and formed along the periphery of any one of the device main body and the mounting body. There is no need to accurately position the body, and the operability of attaching the instrument body can be improved.

According to the second aspect of the present invention, in addition to the effect of the first aspect, the contact piece provided on the instrument body elastically abuts on the instrument mounting surface, so that the instrument main body contacts the instrument mounting surface. And can be stably mounted. Therefore, a heavy instrument body can be stably attached to the instrument mounting surface.

According to the third aspect of the present invention, in addition to the effects of the first or second aspect, in addition to the transparent portion provided on the mounting body, the hooking ceiling installed on the instrument mounting surface via the mounting body is visually checked. Therefore, the mounting body and the hooking ceiling can be easily aligned, and the mounting body can be easily connected to the hooking ceiling.

[Brief description of the drawings]

FIG. 1 is a partial cross-sectional view showing one embodiment of a lighting fixture of the present invention.

FIG. 2 is an exploded perspective view showing the hooking ceiling and the mounting body.

FIG. 3 is an exploded perspective view showing the lighting device.

FIG. 4 is an exploded perspective view showing the lighting unit.

FIG. 5 is an exploded perspective view showing the shade body mounting device.

FIG. 6 is a cross-sectional view showing the shade body mounting device.

FIG. 7 is a perspective view showing a part of the lamp socket;

FIG. 8 is an exploded perspective view showing a part of the lamp socket.

FIG. 9 is a partial perspective view showing the operation of the lamp socket.

FIG. 10 is a partial sectional view showing the operation of the lamp socket.

FIG. 11 is a partially cutaway side view showing a conventional lighting fixture.

FIG. 12 is a perspective view of the lamp holder.

[Explanation of symbols]

21 Ceiling surface as an instrument mounting surface 22 Hook ceiling 31 Mounting body 38 Transparent part 41 Mounting claw 43 Power socket 46 Annular ridge as an engaging part on the mounting body 51 Instrument body 92 Main body mounting device as a main body side engaging part 101 contact piece 114 power plug L _1, L ₂ fluorescent lamp as a lamp

──────────────────────────────────────────────────続 き Continued on the front page (51) Int.Cl. ⁶ Identification code Agency reference number FI Technical display location H01R 33/08 H01R 33/08 // F21V 17/00 330 F21V 17/00 330M

Claims (3)

(57) [Claims] 1. A lighting device in which a fixture body is attached to a hooking ceiling provided on a fixture mounting surface via an attachment body, wherein the fixture body includes a lamp socket and a power plug electrically connected to the lamp socket. And a main body side engaging portion that engages with the mounting body, wherein the mounting body is mechanically locked to the hooking ceiling and is electrically connected thereto, and a power supply for the appliance main body. A power socket electrically connected to the plug, and a mounting body side engaging the main body side engaging portion of the appliance main body in a state where the power plug is electrically connected to the power socket and holding the appliance main body. A lighting part, wherein one of the main body side engaging part and the attachment body side engaging part is formed along a periphery of any one of the fixture body and the mounting body. . 2. The luminaire according to claim 1, wherein the luminaire main body is provided with a contact piece elastically contacting the luminaire mounting surface. 3. The lighting fixture according to claim 1, wherein the mounting body is provided with a see-through portion for visually checking a hooking ceiling installed on the fixture mounting surface via the mounting body.