JPH1040733A - Light body, light body mounting base and lighting equipment - Google Patents

Abstract

(57) [Problem] To improve the workability of a lamp body (12) with respect to a lamp body mounting base (11). SOLUTION: A guide projection 184 is provided on the top of a lamp body 101 of the lamp 12, and a pair of hook-type power receiving terminals 161 are provided concentrically around the guide projection 184. A guide hole 61 is provided at the top of the frame 22 of the lamp body mounting base 11, and a pair of hook-type power supply terminals 82 are provided concentrically around the guide hole 61. The engagement between the guide projection 184 of the lamp body 12 and the guide hole 61 of the lamp body mounting base 11 guides the incorporation of the lamp body 12 into the lamp body mounting base 11, and a pair of hook-type power receiving terminals 161 and hook-type power supply. Position the terminal 82.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a lamp, a lamp mounting base, and a lighting fixture in which workability is considered.

[0002]

2. Description of the Related Art A conventional downlight has a structure in which a lamp mounting base embedded in a mounting surface and a lamp mounted on the lamp mounting base are separated.

In such a downlight, a lamp body mounting base is embedded in a mounting surface in advance, and a power line drawn from the mounting surface side through the inside of the lamp body mounting base is connected to the lamp body. Is inserted inside the lamp body mounting base, and the locking mechanism on the lamp body side is mechanically locked to the locking mechanism on the lamp body mounting base side.

[0004]

However, in the conventional structure, when the lamp is mounted, the lamp is inserted inside the lamp mounting base, that is, the locking mechanism cannot be visually recognized from the outside. Since the locking mechanism on the body side must be mechanically locked to the locking mechanism on the lamp body mounting base side, it is difficult to align the locking mechanism on the lamp body side with the locking mechanism on the lamp body mounting base side. There is a problem that it takes time to construct the body.

SUMMARY OF THE INVENTION The present invention has been made in view of the above circumstances, and an object of the present invention is to provide a lamp, a lamp mounting base, and a lighting fixture which can improve workability.

[0006]

According to a first aspect of the present invention, there is provided a lamp body comprising:
It comprises a lamp body, a guide projection provided on the top of the lamp body, and a pair of hook-type power receiving terminals provided concentrically around the guide projection. And the guide projection provided on the top of the lamp body,
For example, the mounting of the lamp body is guided to a lamp mounting base or the like, and a pair of hook-type power receiving terminals provided concentrically around the guide protrusions form a hook-type power supply on the lamp mounting base side. It is positioned with respect to the terminal.

According to a second aspect of the present invention, in the lamp of the first aspect, the hook-type power receiving terminal is provided near the guide projection, and the positioning accuracy of the hook-type power receiving terminal is improved.

According to a third aspect of the present invention, there is provided a lamp body mounting base including a frame, a guide hole provided at the top of the frame, and a pair of hook-type power supplies provided concentrically around the guide hole. And a terminal. A guide hole provided at the top of the frame guides the incorporation of the lamp body attached to the frame, and a pair of hook-type power supply terminals provided concentrically around the guide hole. A hook-type power receiving terminal on the lamp body side is positioned.

According to a fourth aspect of the present invention, in the lamp mounting base according to the third aspect, an annular portion is provided around the guide hole at the top of the frame portion, and the hook type power supply terminal is provided in the annular portion. The material used for the frame portion is reduced, and a pair of hook-type power supply terminals centering on the guide hole can be arranged concentrically.

According to a fifth aspect of the present invention, there is provided the lamp mounting base according to the third or fourth aspect, wherein a terminal block is provided on a top portion of the frame portion, and a special terminal block is not required separately. Therefore, the number of parts can be reduced and the configuration can be simplified.

According to a sixth aspect of the present invention, there is provided a lighting fixture, wherein the lamp mounting base according to any one of the third to fifth aspects, a guide projection is engaged with a guide hole of the lamp mounting base, and a hook type power receiving terminal. Is electrically and mechanically connected to the hook-type power supply terminal, and the lamp body according to claim 1 or 2, whereby workability is improved.

[0012]

DESCRIPTION OF THE PREFERRED EMBODIMENTS One embodiment of the present invention will be described below with reference to the drawings.

FIGS. 1 to 9 show the structure of a downlight as a first embodiment. 8 shows a side view of the downlight in the installed state, FIG. 9 shows a side view corresponding to FIG. 8 in which the base of FIG. 8 is sectioned, and in these figures, 1
Is a ceiling panel as a mounting surface for attaching downlights,
The ceiling plate 1 has a circular embedding hole 2 for embedding and installing a downlight. Into the embedding hole 2, a power supply line (not shown) wired in the ceiling space above the ceiling plate 1 and a feed wiring (not shown) for supplying power to a separately installed lighting fixture or the like are drawn.

The downlight is composed of a lamp body mounting base 11 and a lamp body 12, and the lamp body mounting base 11 is embedded and installed in the embedding hole 2 of the ceiling plate 1. The body 12 is detachably mounted.

FIG. 1 is an exploded perspective view of a downlight lamp mounting base 11 and a lamp 12, FIG. 2 is a perspective view of the lamp mounting base 11 in an exploded state, and FIG. 4 is a lamp mounting. base
11 shows a bottom view. The lamp body mounting base 11 has a base body 21 made of synthetic resin having insulating properties. The base body 21 has a frame 22 inserted and embedded in the embedding hole 2.
An annular flange portion 23 is formed as an engaging portion that protrudes from the lower edge of the frame portion 22 in the outer radial direction and engages with the surface (lower surface) of the ceiling plate 1.

A cylindrical portion 24 is formed on the lower side of the frame portion 22, and a pair of rising portions 25 is formed to rise from a symmetrical position of the cylindrical portion 24, and a gantry portion 26 is formed between upper ends of the both rising portions 25. An open portion 27 is formed between the cylindrical portion 24, the rising portion 25, and the gantry portion 26. Inside the frame part 22, a lamp body insertion part 28 into which the lamp body 12 is inserted is formed to open downward.

A concave portion 29 is formed on the outer surface of each rising portion 25, and a mounting opening 30 is formed inside the concave portion 29. A notch 31 is formed in the upper center of the mounting opening 30. A groove 32 is formed in the lower center of the mounting opening 30. A concave step portion 33 is formed at the upper right of the concave portion 29, and a mounting hole 34 is formed in the step portion 33.

A locking unit 35 is attached to each rising portion 25. The locking unit 35 includes a support plate 36,
It is composed of a feed screw 37, a moving body 38, a locking body 39 as a locking portion, and a spring 40 as a biasing means.

The support plate 36 is formed to have a size to be fitted into the concave portion 29, and has a lower portion formed with a hooking piece 41 to be engaged with the groove 32, and has an inner surface ( Base body 21 side)
A mounting piece 42 is formed which is bent to engage with the step 33,
The attachment piece 42 has an insertion hole 43 formed therein. An opening 44 is formed in the center of the support plate 36, and the support pieces 45 are formed by bending the upper and lower edges of the opening 44 toward the inner surface side, and a support hole 46 is formed in each of the support pieces 45. Have been. On both sides of the support piece 45 at the upper edge of the opening 44, a pair of guide pieces 47 are formed that project outward and are bent downward as retraction means. Although described in detail later, the upper end (the end in the embedding direction) of the support plate 36 where the guide piece 47 is provided retracts the locking body 39 to the non-engagement position with respect to the ceiling plate 1. It is configured as a predetermined position.

The upper and lower ends of the feed screw 37 are rotatably engaged with support holes 46 of the upper and lower support pieces 45 of the support plate 36, and a C-ring 48 which is engaged with the upper end of the feed screw 37. Has been prevented by. At the lower end of the feed screw 37, an engaging portion 49 is formed for engaging a tool such as a screwdriver to rotate.

A screw hole 50 is formed at the center of the moving body 38 to be screwed into the feed screw 37, and a slide groove 51 is slidably engaged with both side edges of the opening 44 of the support plate 36 at both side edges. Is formed. A pair of engaging holes are provided near the outer edge of the moving body 38.
52 are formed, a pair of through holes 53 are formed on both sides of the screw hole 50, and a pair of hook pieces 54 are formed upright on the inner edge. The moving body 38 is moved in the vertical direction (embedding direction) by the rotation of the feed screw 37.

The locking member 39 has a locking plate portion 55 and side plate portions 56 formed by bending both sides of the locking plate portion 55 to the inner surface side, and is inserted into the opening portion 44 of the support plate 36. It is formed in a width that allows it. Each engaging hole 52 of the moving body 38 is provided at the upper end of the locking plate 55.
A pair of substantially L-shaped engaging pieces 57 which are inserted from below into and are engaged with are formed.
Is pivotable between a non-engagement position that is substantially parallel to the support plate 36 side and an engageable position that projects obliquely laterally. A stopper 58 is provided laterally from the upper end of each side plate 56.
The stopper 58 abuts against the inner surface side of the support plate 36 when the locking body 39 swings toward the engageable position, so that the locking body 39 Swing is regulated.

The spring 40 is formed by forming a spring wire into a substantially U-shape. Both ends of the spring 40 are inserted from below the through holes 53 of the moving body 38 and are hooked on the hook pieces 54. The intermediate portion is in contact with the inner surface side of the locking body 39 to urge the locking body 39 toward the engageable position.

Then, the locking body 39 and the spring 40 are incorporated in the moving body 38, and the feed screw 37 is screwed into the moving body 38.
39 is passed through the opening 44 from the inner surface side of the support plate 36, the slide groove 51 of the moving body 38 is engaged with the support plate 36, and the upper and lower ends of the feed screw 37 are inserted into the support piece 45 of the support plate 36. The engaging unit 35 is assembled by engaging and stopping with the C-ring 48. The assembled lock unit 35 is
The hooking piece 41 of the base 36 is engaged with the groove 32 of the base body 21, the support plate 36 is fitted into the recess 29, and the mounting piece 42 is
And the mounting screw 59 is screwed into the mounting hole 34 of the step portion 33 through the insertion hole 43 of the mounting piece portion 42, so that the base body 21 is
It is fixed to the rising part 25 of the.

The base 26 of the base body 21 is formed with a guide hole 61 which is opened vertically at the center thereof.
An annular portion 62 is formed around the guide hole 61, and a terminal block 63 is integrally formed on one end side of the annular portion 62. A cover 64 is formed on the upper surfaces of the annular portion 62 and the terminal block 63.
Is detachably attached.

The annular portion 62 has a bottom portion 65, an inner peripheral portion 66 and an outer peripheral portion 67 raised from the inner and outer peripheral edges of the bottom portion 65, and these form a terminal housing groove 68 which opens upward. ing. In this terminal storage groove 68, a boss 70 having a mounting hole 69 on the opposite side to the terminal stand 63 is erected, and a plurality of terminal holding pieces 71 are erected on both sides intersecting both end directions of the gantry part 26. I have.

On the terminal block 63, two pairs of concave terminal storage portions 72 are formed in parallel.
Are formed at the lower ends of the electric wire insertion holes 73 communicating with the outer ends of the electric wires. A mounting hole 74 is formed on the annular portion 62 side of each set of terminal block storage portions 72, and both sets of terminal block storage portions 72 are formed.
A mounting hole 75 is formed between 72.

The bottom surface 65 of the annular portion 62 has symmetrically formed engaging holes 77 at symmetrical positions in a direction intersecting both ends of the gantry portion 26. The engagement hole 77 is formed with a groove portion 78 formed toward the outer peripheral side of the bottom portion 65 and an end portion in a counterclockwise direction when viewed from the bottom direction of the groove portion 78 (in a state shown in FIG. 4). An insertion hole 79 is formed in the groove hole 78 and the insertion hole 79.
Are formed in a substantially L-shape.

The terminal housing groove 68 of the annular portion 62 is provided with a pair of terminal members 80 at symmetrical positions in a direction intersecting both ends of the gantry portion 26.
Is arranged. Each of the terminal bodies 80 has a conductive plate 81 inserted and held between the inner peripheral portion 66 and the terminal holding piece 71, and a hook type power supply terminal 82 is spot-welded to an outer surface of an intermediate portion of the conductive plate 81. The terminal plate 83 is attached to the end of the conductive plate 81 facing the terminal block 63 by spot welding.

Each hook-type power supply terminal 82 is disposed concentrically about the guide hole 61 on the inner peripheral edge of the slot 78, and is provided at one end facing the insertion hole 79. Is formed with a locking projection 84 protruding upward, and at the other end, an engagement recess 85 having a chevron shape.
Are formed.

Each of the terminal plates 83 is disposed on each set of the terminal storage portions 72 of the terminal block 63, and has an insertion hole 86 corresponding to the position of the mounting hole 74 of the terminal block 63. A window hole 87 is formed on the distal end side. Terminal storage section 72 of terminal block 63
, A lock terminal 88 combined with the terminal plate 83 is provided.

After the lock terminals 88 are inserted into the respective terminal storage portions 72 of the terminal block 63, the conductive plate 81 and the hook-type power supply terminals 82 of the respective terminal bodies 80 are inserted into the terminal storage grooves 68 of the annular portion 62. At the same time, the terminal plate 83 of each terminal body 80 is aligned on the terminal block 63, and the mounting screws 89 are screwed into the mounting holes 74 of the terminal block 63 through the insertion holes 86 of the terminal plate 83, so that each terminal body 80 is mounted on the base. Attached to part 26.

The cover 64 has an annular cover portion 90 covering the upper surface of the annular portion 62 and a terminal block cover portion 91 covering the upper surface of the terminal block 63.
Mounting holes 92 and 93 are formed corresponding to the positions of the mounting holes 75 of the 63, and the mounting screws 94 are inserted through the mounting holes 69 and 75 through the mounting holes 92 and 93.
The cover 64 is attached to the gantry 26 by screwing the cover 64.

The terminal block cover 91 has an upper portion of each wire insertion hole 73 formed on the lower surface on the distal end side, and a window hole 95 formed in the center. A release button 96 is provided inside the window hole 95,
The release button 96 is formed with a pushing portion 97 that can be inserted into the window hole 87 of the terminal plate 83 and engage with each lock terminal 88.

By inserting the ends of a pair of core wires, not shown, of the power supply line and the feed wiring (not shown) into the electric wire insertion holes 73 of the terminal block 63, the core wires are connected to the terminal plate 83 and the locking terminal.
It is press-fitted between it and 88, and it is stopped and locked in the state of electrical connection.

FIG. 3 is a perspective view of the disassembled state of the lamp body 12, FIG. 5 is a plan view of the lamp body 12, FIG. 6 is a sectional view taken along line AA of FIG. 5, and FIG. FIG. 7 is a sectional view corresponding to FIG. 6 rotated to a position.

The lamp body 12 includes a lamp body 101 as a lamp body.
The lamp body 101 includes a reflector 102 and a flange body 103 attached to a lower portion of the reflector 102, and an irradiation opening 104 is formed on the lower surface.

The reflector 102 is made of a synthetic resin having an insulating property, is formed in a conical shape whose lower end is widened, and has a plurality of mounting pieces 106 having an insertion hole 105 formed on the outer surface of the lower end thereof. The flange body 103 is made of, for example, synthetic resin or metal, and is formed in an annular shape corresponding to the shape of the lower end of the reflector 102, and has a plurality of bosses 10 having mounting holes 107 on its outer surface.
8 is formed. Then, attach the mounting screw 109 to the reflector 10
The mounting hole 10 on the flange body 103 side through the insertion hole 105 on the side 2
7 and the reflector 102 and the flange 103
Are linked.

On the side surface of the reflector 102, a socket mounting recess is provided.
The socket mounting recess 110 has an opening 111 formed therein. At the lower part on both sides of the socket mounting recess 110, mounting bases 112 are formed.
In FIG. 2, a bearing groove portion 113 that opens upward is formed oppositely, and a mounting hole 114 is formed on the upper surface of each mounting base portion 112.

A lamp socket 115 is mounted in the socket mounting recess 110 of the reflector 102. The lamp socket 115 includes a socket holder 116, a socket 117, a pair of socket terminals 118 a and 118 b, and a socket cover 119.

The socket holder 116 is made of insulating synthetic resin and has a support plate 120. The lower ends of both sides of the support plate 120 are rotatably engaged with the bearing grooves 113 of the reflector 102. A shaft portion 121 is formed to protrude. A socket tube portion 122 is formed on the outer surface of the support plate portion 120 so as to protrude therefrom, and the inside of the socket tube portion 122 is formed to be open in the axial direction. On the upper surface of the socket tube part 122, a terminal holding part is provided on the support plate part 120 side.
The terminal holding portion 12
From 3 to the outer end of the socket tubular portion 122, a terminal engaging portion 124 which is gently curved and continuous is formed so as to protrude. The terminal holding portion 123 is formed with a pair of terminal engaging grooves 125 for engaging the pair of socket terminals 118a and 118b.
A communication portion 126 communicating with the inside of the socket tube portion 122 is formed corresponding to the position of the one terminal engagement groove 125.
A mounting hole 127 is formed in the lower part of the outer end of the socket tube part 122.

The receiver 117 is connectable to a lamp 129 having a base 128 such as an Edison type E17 type, and has a cylindrical connection tube portion 130 having a spirally formed thread.
An end plate 131 is formed at one end of the connection cylinder 130, and a notch is formed from the center of the end plate 131 to a part of the periphery.
132 is formed, and an insertion hole 133 is formed near the notch 132.

The pair of socket terminals 118a and 118b have an intermediate portion joined and disposed on the terminal engaging portion 124 and a holding projection 13 held in the terminal engaging groove 125 near one end thereof.
4 is formed, and at one end, an arc-shaped engaging portion 135 protruding upward from the terminal engaging groove 125 is formed. At the other end of one of the socket terminals 118a, a connection piece 136 is formed which is inserted into the socket cylinder 122 through the communication portion 126 and is coupled to the receiving member 117. The connection piece 136 has an insertion hole 13 formed therein.
7 is formed. The other end of the other socket terminal 118b is passed through the outer end portion of the socket tube portion 122 through the socket tube portion 12b.
A contact piece 138 is formed in the notch 132 of the metal receiving member 117 in a non-contact state, and an insertion hole 139 is formed at the base end of the contact piece 138.

The socket cover 119 is made of insulating synthetic resin, and covers the upper surface of the terminal engaging portion 124.
The terminal cover 140 has an end plate portion 141 for covering an end surface of the socket tube portion 122. The terminal cover portion 140 has a distal end formed with a projection 142 for engaging with the terminal holding portion 123.
An insertion hole 143 is formed below 141. End plate 141
The insertion holes 137, 13 of the socket terminals 118a, 118b
Attachment holes (not shown) are formed at positions 9.

In order to assemble the lamp socket 115, the mounting screw 144 passed through the insertion hole 139 of the other socket terminal 118b is screwed and attached to the inner surface of the socket cover 119, and the insertion holes 133 and A mounting screw 145 passed through the insertion hole 137 of one of the socket terminals 118a is screwed into the inner surface of the socket cover 119 to be integrally attached,
As a result, the socket 117 is electrically connected to the one socket terminal 118a, and the contact piece 138 of the other socket terminal 118b is arranged in a non-contact state with the notch 132 of the socket 117. The receiving member 117 attached to the socket cover 119 is inserted into the socket tube portion 122 from the outside, and the holding projections 134 of the socket terminals 118a and 118b are engaged with the terminal engagement grooves 125 of the terminal holding portion 123, respectively. Protrusion 142 on socket cover 119
Is engaged with the terminal holding portion 123, and the mounting screw 146 passed through the insertion hole 143 of the socket cover 119 is screwed into the mounting hole 127 of the socket tube portion 122 for mounting. The lamp socket 11
The assembling order of 5 is not limited to this order.

In order to mount the lamp socket 115 assembled as described above on the reflector 102, the shaft portions 121 on both lower sides of the socket holder 116 are connected to the respective bearing grooves on both lower sides of the socket mounting recess 110 of the reflector 102. A push plate 147 that engages with the upper surface of the bearing groove 113 and closes the upper surface of the bearing groove 113 is disposed on the mounting base 112, and a mounting screw 149 that passes through the insertion hole 148 of the push plate 147 is attached to the mounting hole of the mounting base 112. Screw it to 114 and attach it.

As described above, the lamp socket 115 attached to the reflector 102 has a lamp lighting position in which the lamp connection direction is substantially parallel to the irradiation opening 104 of the reflector 102 with the shaft 121 as a fulcrum. The lamp is rotatably supported at a vertical lamp attaching / detaching position which is substantially perpendicular to the opening 104. The lamp lighting position of the lamp socket 115 is regulated by the upper surface of the terminal holding portion 123 being in contact with the upper edge of the opening 111, and is held by engagement with an engaging terminal 168 described later.

An annular pedestal 150 is formed above the reflector 102, and a projection 151 is formed on the pedestal 150 to protrude above the socket mounting recess 110. On the upper surface of the pedestal 150, a pair of recesses 152 are formed on both sides of the center line passing through the protrusion 151, and each recess 15 is formed.
A concave terminal fitting portion 153 is formed at an end facing the second protrusion 151. Each terminal fitting 153 has a mounting hole on the inner diameter side.
154 is formed, and a space 15 penetrating vertically in the outer diameter side
5 is formed. A mounting hole 156 is formed on the upper surface of the partition between the two spaces 155.

Terminal mounting portions 157 are formed at symmetrical positions of the end of the one concave portion 152 on the opposite side to the protruding portion 151 and the end of the other concave portion 152 on the side of the protruding portion 151, respectively. A mounting hole 158 and a protrusion 159 are formed in 157, and a protrusion 160 is formed in the other terminal mounting portion 157.

A pair of hook-type power receiving terminals 161 are mounted on each terminal mounting portion 157 concentrically around the guide projection 184. The hook-type power receiving terminal 161 is made of conductive metal and has a mounting portion 163. The hook-type power receiving terminal 161 is raised from an outer edge portion of the mounting portion 163, and is directed inward.
4 is bent to form a substantially L-shaped hooking piece 165. The mounting portion 163 has an insertion hole 166 and a fitting hole 167. The hooking claw 164 is formed in a chevron shape projecting to the lower surface side.

An engagement terminal 168 is attached to each terminal fitting portion 153. The engagement terminal 168 has a mounting piece 169 fitted on the terminal fitting part 153, and a mounting hole 170 is formed in the mounting piece 169. A connecting piece 171 is formed to bend into the space 155, and the socket terminal 118a, 118b is provided at the tip of the connecting piece 171.
An arc-shaped engaging portion 172 is formed so as to be able to engage with the engaging portion 135.

A conductive plate 173 for connecting one hook-type power receiving terminal 161 and the engaging terminal 168 is provided on one concave portion 152 side. The conductive plate 173 is formed in a semicircular shape along the concave portion 152, and has an insertion hole 174 and a fitting hole 175 formed at one end connected to the hook type power receiving terminal 161.
8 has an insertion hole 176 formed at the other end.

To incorporate each terminal component into the pedestal portion 150, a pair of engagement terminals 168 are fitted into each terminal fitting portion 153, and the fitting hole 175 of the conductive plate 173 is made to project from the one concave portion 152. Part 15
9, the conductive plate 173 is fitted into one of the recesses 152, and the fitting hole 167 of the hook type power receiving terminal 161 is fitted into the conductive plate 173.
And the hook-type power receiving terminal 161 is placed on the conductive plate 173, and the fitting hole 167 of the other hook-type power receiving terminal 161 is inserted into the other concave portion. The hook-type power receiving terminal 161 is fitted into the other recessed portion 152 by fitting into the projection 159 of the other. Insertion hole for one hook-type power receiving terminal 161
166 and the mounting screw 17 passed through the insertion hole 174 of the conductive plate 173
7 is screwed into the mounting hole 158 of one of the recesses 152 and fastened together.
A mounting screw 178 that has passed through the insertion hole 166 of the other hook-type power receiving terminal 161 and the insertion hole 174 of the other engagement terminal 168 is screwed together with the mounting hole 154 of the terminal fitting portion 153, and tightened together.
A mounting screw 179 that has passed through the insertion hole 176 of the first fitting terminal 168 and the insertion hole 174 of the one engagement terminal 168 is screwed into the mounting hole 154 of the terminal fitting portion 153 and fastened together. Further, the terminal cover 180 is fitted into the protrusion 151, and the mounting screw 182 inserted through the insertion hole 181 of the terminal cover 180 is screwed into the mounting hole 156 of the protrusion 151.

Then, by incorporating each terminal component into pedestal portion 150, one hook-type power receiving terminal 161 and one engagement terminal 168 are electrically connected through conductive plate 173, and the other hook-type power receiving terminal 161 is connected. And the other engagement terminal 168 are in direct contact and electrically connected.

When the lamp socket 115 is in the lamp lighting position, the socket terminals 118a and 118b and the engagement terminals 16
8 are engaged and electrically connected and held, and when the lamp socket 115 is rotated to the lamp attaching / detaching position, the socket terminals 118a and 118b are separated from the engaging terminals 168, and the electrical connection is released. Is done. Therefore, socket terminal 11
The electrical connection means 183 is composed of the engagement terminals 8a and 118b and the engagement terminal 168.

A guide projection 184 projecting upward is formed on the top of the reflector 102, and a plurality of ventilation holes 185 are formed on the side of the guide projection 184.

The inner surfaces of the reflector 102 and the flange 103 may be formed as mirror surfaces or white surfaces, or only the inner surface of the flange 103 may be formed as a black surface.

Next, the operation of the first embodiment will be described.

In order to construct the downlight, first, FIG.
9 and FIG. 9, a power supply line and, if necessary, a feeder wiring are drawn out from an embedded hole 2 formed in advance in the ceiling plate 1,
These core wires are distributed to the electric wire insertion holes 73 of the terminal block 63 of the lighting fixture mounting base 11 of the base, and inserted and connected respectively.

The frame 22 of the lamp body mounting base 11 is inserted into the embedding hole 2 from below and pushed up. At this time, the feed screw is set so that there is a gap equal to or greater than the thickness of the ceiling plate 1 between the lower end and the flange portion 23 when each of the locking members 39 swings to the non-engagement position approaching the frame portion 22 side. The locking body 39 is moved upward by rotating the 37. However, the locking member 39 is not engaged with the upper guide piece portion 47, and the locking member 39 is in a state of protruding to a position where the side of the frame portion 22 can be engaged.

When the frame portion 22 of the lamp body mounting base 11 is inserted into the embedding hole 2, each locking member 39 protruding to the side of the frame portion 22 comes into contact with the inner edge of the embedding hole 2, and a spring is provided. The insertion of the embedding hole 2 is continued while the locking member 39 is pushed to the non-engagement position against the urging of the forcing.

When the lower end of each locking member 39 comes off the upper end of the embedding hole 2, the locking member 39 pushed to the non-engagement position by the bias of the spring 40 is moved to the side of the frame 22. Protrudes to an engageable position. Therefore, even if the lifting of the lamp body mounting base 11 is released, the pair of locking members 39 abut on the ceiling plate 1, and the lamp body mounting base 11 is temporarily fixed to the ceiling plate 1, and You can release your hand.

A tool such as a screwdriver is engaged with an engaging portion 49 facing the feed screw 37 through the lamp insertion portion 28 inside the lamp mounting base 11 to rotate the feed screw 37. The locking body 39 is lowered relative to the lamp body mounting base 11, that is, the locking body 39 abutting on the ceiling plate 1
The lighting fixture mounting base 11 is raised. This allows
The flange portion 23 is joined to the ceiling plate 1, the ceiling plate 1 is sandwiched between the locking member 39 and the flange portion 23, and the lamp body mounting base 11 is fixed to the ceiling plate 1.

Next, the lamp body 12 is inserted into the lamp body insertion portion 28 of the lamp body mounting base 11 from below and pushed up. At this time, the lamp
The orientation of the lamp body 12 with respect to the lamp body mounting base 11 is such that the lamp socket 115 of the lamp body 12 matches the opening 27 of the lamp body mounting base 11, that is, the pair of hook-type power receiving terminals 161 of the lamp body 12 and the lamp body mounting base 11. The orientation of the hook-type power supply terminal 82 coincides with that of the hook-type power supply terminal 11. In addition, if the lamp socket 115 is rotated to the vertical lamp attaching / detaching position which is almost perpendicular to the irradiation opening 104, the lamp socket 115 does not protrude to the side of the lamp body 12, so that the lamp body 12 is in a horizontal posture. The lamp body can be inserted into the lamp body insertion portion 28 of the lamp body mounting base 11 from below. It should be noted that the lamp insertion portion 28 of the lamp mounting base 11 is kept in a state where the lamp socket 115 is in a horizontal lamp lighting position substantially parallel to the irradiation opening 104.
When inserting the lamp socket 115, insert the lamp socket 115 into the lamp insertion part 28 of the lamp mounting base 11 with the tip protruding to the side of the lamp facing upward. The lamp body 12 is turned to a horizontal posture in a state where the lamp body 12 faces the opening 27 of the lamp body 11, and thereafter the lamp body 12 is inserted from below into the lamp body insertion portion 28 of the lamp body mounting base 11 in the horizontal posture.

When the lamp body 12 is inserted into the lamp body mounting base 11 of the lamp body 12 to the far side of the lamp body insertion section 28, a guide projection 184 projecting from the top of the lamp body 12 is formed on the annular portion 62 of the lamp body mounting base 11. A pair of hook-type power receiving terminals 16 of the lamp body 12 are fitted into the guide holes 61.
1 and a pair of hook-type power supply terminals 82 of the lamp body mounting base 11 are positioned.

The pair of hook-type power receiving terminals 16 of the lamp body 12
1 is engaged with a pair of hook type power supply terminals 82 of the lamp body mounting base 11. That is, first, each hook type power receiving terminal 161 is inserted into the inside of the annular portion 62 through the insertion hole 79 of each engaging hole 77, and the hook claw 164 at the upper end of each hook type power receiving terminal 161 is connected to each hook type power supply terminal. It is moved above the locking projection 84 of 82. In this inserted state, the lamp body 12 is rotated clockwise as viewed from the bottom surface, and the hook claws 164 of each hook-type power receiving terminal 161 climb over the locking projection 84 of each hook-type power supply terminal 82. At the same time, the hook piece 165 of each hook type power receiving terminal 161 is
Is moved to the slot 78. The rotation of the lamp body 12 is regulated by the hook pieces 165 of each hook type power receiving terminal 161 abutting against the end of the slot 78 of each engagement hole 77. And the light 12
Release the push-up of each hook-type power receiving terminal 16
The first hooking claw portion 164 engages with the engaging recess 85 of each hooking type power supply terminal 82 and presses against the lamp body 12 under its own weight. Therefore, the engagement between the hook-type power supply terminal 82 and the hook-type power receiving terminal 161 allows the lamp body mounting base 11 and the lamp body 12 to be simultaneously mechanically locked and electrically connected.

When the lamp socket 115 is turned to the lamp attaching / detaching position and the lamp body 12 is mounted on the lamp body mounting base 11, the lamp socket 115 is turned to the lamp lighting position. By rotating the lamp socket 115 to the lamp lighting position, the socket terminal on the lamp socket 115 side is rotated.
The engaging terminals 118a and 118b and the engaging terminal 168 on the side of the lamp body 101 are engaged and electrically connected, and the engagement holds the lamp socket 115 at the lamp lighting position.

As described above, the steps of connecting the power supply line and the feed wiring to the lamp body mounting base 11, fixing the lamp body mounting base 11 to the ceiling plate 1, and mounting the lamp body 12 on the lamp body mounting base 11. The construction can be performed more easily, and the labor and time required for the construction can be reduced.

Moreover, the hooking claws of each hooking type power receiving terminal 161
Since the 164 is joined to the upper surface of each hook-type power supply terminal 82 and hooked, the locking state can be stabilized as compared with the conventional locking structure using a leaf spring. In addition, lighting
The hook weight 16 of each hook-type power receiving terminal 161
4 is pressed against the upper surface of each hook-type power supply terminal 82,
The contact pressure between each hook type power receiving terminal 161 and each hook type power supply terminal 82 is high, and electrical connection can be ensured. In addition, since the hooking type power supply terminal 82 is provided with the locking projection 84, the hooking claw 164 of each hooking type power receiving terminal 161 that presses against the upper surface of each hooking type power supply terminal 82 is fitted into the insertion hole 79. Even if the lamp body 12 is rotated so as to move in the direction, the hooking claw 164 abuts on the locking projection 84 to restrict the movement, so that the lamp body 12 is inadvertently moved. Never fall off.

When the lamp 129 is to be replaced, the lamp socket 115 is rotated to a vertical lamp mounting / dismounting position which is substantially perpendicular to the irradiation opening 104, so that the lamp 129 is moved through the irradiation opening 104. Can be easily attached and detached. Then, by rotating the lamp socket 115 to the lamp attaching / detaching position, the electrical connection between the lamp socket 115 and the hook type power receiving terminal 161 can be automatically released by the electric connection means 183.
Lamp 12 with no power applied to lamp socket 115
9 can be replaced.

In order to remove the lamp body 12 for maintenance or replacement of equipment, the lamp body 12 is rotated counterclockwise as viewed from the bottom while pushing up the lamp body 12 so that each of the hook-type power receiving units is removed. The hook claw 164 of the terminal 161 is moved over the locking projection 84 of each hook-type power supply terminal 82 so as to face the insertion hole 79, and the lifting of the lamp body 12 is released and the lamp body 12 is moved downward. As a result, the hooking claws 164 of each hook-type power receiving terminal 161 are disengaged downward from the respective insertion holes 79, and the lamp body 12 is detached from the lamp body mounting base 11.
Can be detached downward from the lamp body insertion part 28 of FIG.

Therefore, it is not difficult to re-attach the lamp 12 with the operation of removing the lamp 12, and the lamp 12 can be easily attached and detached, so that the maintenance can be easily performed.

When the lamp body mounting base 11 is to be removed from the ceiling plate 1 for maintenance or replacement of the equipment, the moving body 38 is moved upward (embedding direction) by operating the feed screw 37. The locking body 39 is raised relatively to the lamp body mounting base 11 so that the ceiling
Is released, and by further moving the moving body 38 upward, the outer surface of the locking body 39 is engaged with the guide piece 47,
The locking piece 39 is moved to a non-engagement position where the locking piece 39 approaches the frame portion 22 side by the guide piece portion 47. Therefore, the lighting fixture mounting base 11
Is moved downward, the lamp body mounting base 11 can be easily removed from the embedding hole 2 of the ceiling plate 1.

Therefore, it is not difficult to re-attach the lamp body mounting base 11 with the removal operation of the lamp body mounting base 11, and the lamp body mounting base 11 can be easily attached and detached, so that the maintenance is easy. I can do it.

As described above, by inserting the frame portion 22 of the lamp body mounting base 11 into the embedding hole 2 of the ceiling plate 1, even if the locking member 39 is advanced to the side of the frame portion 22, The locking body 39 abuts on the inner edge of the embedding hole 2 so that it can be inserted while retracting to the non-engaging position.
Is moved forward by the spring 40 to an engageable position on the side of the frame portion 22, so that the locking body 39 is engaged with the back side of the ceiling plate 1 and the lamp body mounting base 11 can be temporarily fixed. In addition, by operating the feed screw 37 in the temporarily fixed state, the locking member 39 is operated.
The ceiling plate 1 can be sandwiched and attached between the ceiling plate 1 and the flange portion 23, and the workability can be improved.

Further, the locking member 39 can be moved along the embedding direction of the frame portion 22 and the locking member 39 is moved to the upper end in the embedding direction, so that the guide piece portion 47 allows the locking member 39 to move. With the movement of the locking body 39, the locking body 39 is retracted, the locking body 39 projects, and the ceiling plate 1
Can be reliably performed.

Further, the locking member 39 can be moved along the embedding direction of the frame portion 22, and the other end is turned to the non-engagement position and the engageable position with one end in the embedding direction as a fulcrum. As a result, the locking body 39 can be smoothly retracted to the non-engaged position.

Further, the guide projection 184 provided on the top of the lamp body 101 of the lamp 12 allows the lamp body to be easily incorporated into the lamp body mounting base 11 and the guide projection 18.
4, a pair of hook-type power receiving terminals 161 provided concentrically with respect to 4 can be easily positioned with respect to the hook-type power supply terminals 82 on the lamp body mounting base 11 side, and the workability of the lamp body 12 can be improved.

Further, the hook type power receiving terminal 161 is
Since it is provided in the vicinity of 184, the positioning accuracy of the hook type power receiving terminal 161 can be improved.

The guide holes 61 provided on the top of the frame 22 of the lamp mounting base 11 allow the lamp 12 mounted on the frame 22 to be easily assembled.
A pair of hook-type power supply terminals 82 provided concentrically around the guide hole 61 and the hook-type power receiving terminals 161 on the lamp body 12 side can be easily positioned, and the workability of the lamp body 12 with respect to the lamp body mounting base 11 can be improved. Can be improved.

Further, the annular portion 62 is provided at the top of the frame portion 22 with the guide hole 61 as the center, and the hook-type power supply terminal 82 is provided in the annular portion 62, so that the material used for the frame portion 22 can be reduced. The concentric arrangement of the pair of hook-type power supply terminals 82 around the guide hole 61 can be facilitated.

Further, since the terminal block 63 is provided on the top of the frame 22, a special terminal block is not required separately, so that the number of parts can be reduced and the configuration can be simplified.

Next, FIG. 10 shows a lamp 12 according to the second embodiment.
FIG.

The lamp body 12 of this embodiment has a vertical shape in which the lamp connection direction is perpendicular to the irradiation opening 104. The guide projection 184 at the top of the lamp body 12 extends upward, and this guide projection
Place lamp socket 201 inside 184, and guide protrusion 1
Insert the mounting screw 202 passed through from above
And fix it. A pair of lead wires 203 led out from the lamp socket 201 is connected to each hook-type power receiving terminal 161.

The vertical lamp body 12 is attached to the lamp body mounting base 11 as in the case of the shallow lamp body 12, and has the same function and effect.

The lamp body 12 includes a lamp mounting base 11.
If the light-receiving terminal 161 is provided and can be inserted into the lamp-body insertion portion 28, various lamps 12 can be mounted on the lamp-mounting base 11. Therefore, the lighting fixture mounting base 11
If the lamp body mounting base 11 is fixed to the ceiling plate 1, various lamp bodies 12 can be selectively mounted and can be easily replaced.

[0087]

According to the lamp body of the first aspect, the guide projection provided on the top of the lamp body allows the lamp body to be easily assembled to, for example, a lamp mounting base. In addition, a pair of hook-type power receiving terminals provided concentrically around the guide projection can be easily positioned with respect to the hook-type power supply terminals on the lamp body mounting base side, and the workability of the lamp body can be improved.

According to the lamp according to the second aspect, in addition to the effect of the lamp according to the first aspect, since the hook-type power receiving terminal is provided near the guide protrusion, the positioning accuracy of the hook-type power receiving terminal can be improved. Can be improved.

According to the lamp body mounting base of the third aspect,
The guide hole provided at the top of the frame allows the lamp mounted on the frame to be easily assembled, and a pair of hook-type power supply terminals and lamps provided concentrically around the guide hole. The hook-type power receiving terminal and the like on the body side can be easily positioned, and the workability of the lamp body to the lamp body mounting base can be improved.

According to the lamp body mounting base of the fourth aspect,
In addition to the effect of the lamp body mounting base according to claim 3, an annular portion is provided at the top of the frame centering on the guide hole, and the hook-type power supply terminal is provided in the annular portion. And the concentric arrangement of a pair of hook-type power supply terminals centering on the guide hole can be facilitated.

According to the lamp body mounting base of the fifth aspect,
In addition to the effect of the lamp body mounting base according to the third or fourth aspect, since the terminal block is provided on the top of the frame, a special terminal block is not required separately, so that the number of parts can be reduced and the configuration can be simplified.

According to the luminaire of the sixth aspect, since the luminaire of the first or second aspect and the luminous element mounting base of the third or fifth aspect are provided, workability is improved. it can.

[Brief description of the drawings]

FIG. 1 is a perspective view showing a disassembled state of a lamp body mounting base and a lamp body of a downlight according to a first embodiment of the present invention.

FIG. 2 is a perspective view of the lamp body mounting base according to the embodiment in an exploded state.

FIG. 3 is a perspective view of the lamp body of the embodiment in an exploded state.

FIG. 4 is a bottom view of the lamp body mounting base of the embodiment.

FIG. 5 is a plan view of the lamp according to the embodiment.

FIG. 6 is a sectional view taken along line AA of FIG. 5 of the embodiment.

FIG. 7 is a cross-sectional view corresponding to FIG. 6, in which the lamp socket shown in FIG. 6 of the embodiment is rotated to a lamp attaching / detaching position.

FIG. 8 is a side view of the downlight according to the embodiment in an installed state.

FIG. 9 is a side view corresponding to FIG. 8 and showing a cross section of the lamp body mounting base of the embodiment shown in FIG. 8;

FIG. 10 is a perspective view of a lamp body showing a second embodiment of the present invention.

[Explanation of symbols]

 11 Lamp body mounting base 12 Lamp body 22 Frame 61 Guide hole 62 Annular part 63 Terminal block 82 Hook-type power supply terminal 101 Lamp body as lamp body 161 Hook-type power receiving terminal 184 Guide protrusion

Claims (6)

[Claims] 1. A lamp body, a guide projection provided on the top of the lamp body, and a pair of hook-type power receiving terminals provided concentrically around the guide projection. A lamp body characterized in that: 2. The lamp according to claim 1, wherein the hook-type power receiving terminal is provided near the guide projection. 3. A frame, a guide hole provided at the top of the frame, and a pair of hook-type power supply terminals provided concentrically around the guide hole. Characteristic light fixture mounting base. 4. The lamp body mounting base according to claim 3, wherein an annular portion is provided at the top of the frame portion around the guide hole, and a hook-type power supply terminal is provided in the annular portion. 5. The lamp body mounting base according to claim 3, wherein a terminal block is provided on a top portion of the frame portion. 6. The lamp body mounting base according to claim 3, wherein the guide projection is engaged with a guide hole of the lamp body mounting base, and the hook type power receiving terminal is electrically connected to the hook type power supply terminal. A lighting fixture comprising: the lamp according to claim 1, which is connected mechanically and mechanically.