JPH11167810A - Luminaire - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a luminaire which can simplify assembling of lighting circuit structure, also can improve a working property, by integrating a cord bushing with an insulating member. SOLUTION: This luminaire is constituted so that a lighting circuit structure formed by loading required circuit components on a printed-circuit board is set on the luminaire body 1A through an insulating member 20A, and the lighting circuit structure is covered with a metal cover 40A, also at least cords 34 connected to a fluorescent lamp from the lighting circuit structure are led out through an cord leading-out aperture. Here, a cord bushing 25 is integrally formed on the periphery of the insulating member 20A, and a notched aperture 43A is formed in the cover part corresponding to the cord bushing 25. The cords 34 are led out through the cord bushing 25, and the cord bushing is almost surrounding by the aperture in the cover 40A under the condition that the lighting circuit structure is covered with the cover 40A.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a lighting apparatus, and more particularly to an improvement of a direct mounting type lighting apparatus for a ring-shaped fluorescent lamp in which a lighting circuit structure for generating a high-frequency voltage is arranged on an apparatus body via an insulating member.

[0002]

2. Description of the Related Art A conventional lighting apparatus of this type is, for example, shown in FIG.
20 are configured as shown in FIG. In the figure,
Reference numeral 1 denotes a circular appliance main body fixed to, for example, a ceiling surface S, and a bent portion 1a which is bent substantially in an L shape toward the lower side at a peripheral portion thereof is provided at an appropriate portion excluding the peripheral portion. The tapered portion 1b is formed by drawing, and holes are formed in appropriate portions of the tapered portion 1b. A pull switch PS is arranged on the instrument body facing the hole.
In addition, a pair of locking portions 2, 2 extruded in a substantially semi-cylindrical shape, for example, toward the ceiling surface side, have openings facing the peripheral portion of the appliance body 1 on the side facing the ceiling surface S. It is formed as follows. Between the locking portions 2 and 2, a stopper portion 3 having a substantially U-shape extruded toward the ceiling surface side and having a slit opened on the locking portions 2 and 2 side is disposed in the extruded portion. I have. V-shaped spring 4
However, an L-shaped bent portion is inserted and locked outward at the tip of the locking leg 4a, and the V-shaped spring 4 is disengaged from the locking portions 2 and 2 by the stopper portion 3. It is configured not to be. Note that the pull cord 5 from the pull switch PS passes through the hole of the taper portion 1b and passes through
It is hung down via the ring portion 4b of the shaped spring 4.

[0003] At the peripheral portion adjacent to the bent portion 1a of the instrument body 1, simple glove detaching means 6, 6 described later are arranged. The simple attachment / detachment means 6 connects a pair of glove fixing claws 7, 7 which are arranged at predetermined intervals and have taper portions 7a, 7a on the outside, for example. A base plate 8, a rod 9 extending perpendicularly from the base plate 8, a case 10 fixed to a peripheral portion of the instrument body 1 at an interval of approximately 180 °, and a case 1
The glove fixing claw 7 is constituted by a spring 11 arranged so as to be urged radially outward of the instrument body 1 together with a rod 9 inside the inside. Guide plates 12 and 12 are arranged in the instrument main body at the intermediate portion of the gloves for easy attachment and detachment. Further, first and second ring-shaped fluorescent lamps 13a and 13b having different ring diameters are arranged in a central portion of the instrument body 1. A glove 14 having a light-transmitting property is mounted on the instrument body 1 using the simple attaching / detaching means 6 and the guide plate 12. The globe 14 is, for example, the instrument body 1 and the annular fluorescent lamp 13.
a, 13b are formed in a shape to be covered, and a rising portion 15 is formed at an upper end thereof. In particular, the curved portion 1 protruding inward is provided at the opposing portion of the rising portion 15.
6, 16 are integrally formed.

Further, a shallow concave portion 1c is formed in a predetermined portion of the appliance body 1 toward the ceiling surface side, and the insulating member 20, the lighting circuit assembly 30, and a metal cover are formed in the concave portion 1c portion. 40 are arranged. This insulating member 20
Is made of a resin material having an excellent insulating property such as a polypropylene resin, and has a flange portion 20a at a peripheral portion and a recess 20b having a shallow bottom at a portion other than the peripheral portion. In the flange portion 20a, a screw insertion hole 21 is formed, and in the recess portion 20b, a plurality of guide pins 22 and a plurality of locking claws 23 each having a locking portion at a tip are integrally formed. The lighting circuit structure 30 is provided on the insulating member 20.
Are supported by support means including a guide pin 22 and a locking claw 23. The supporting means is not limited to the guide pin 22 and the locking claw 23, and other configurations can be adopted.

The lighting circuit structure 30 is, for example, shown in FIGS.
0, the first and second annular fluorescent lamps 13a, 1
1b, 2nd inverter circuit INV for lighting 3b
1 and INV2, and both inverter circuits are basically configured in substantially the same manner. For example, the first inverter circuit INV1
Is a converter REC for converting AC into DC, a capacitor C1 connected in parallel to the converter REC, primary coils TRa and TRb, a secondary coil TRc, and a drive coil TRd.
An oscillation transformer TR, a choke coil CH connected between the conversion means REC and the midpoint of the primary coils TRa and TRb of the oscillation transformer TR, and an oscillation transformer TR.
Transistors Qa and Qb connected to the primary coils TRa and TRb, an oscillation capacitor C2, and a transistor Q
The resistors R1 and R2 are connected to the bases a and Qb. The secondary coil TR of the oscillation transformer TR
A ring-shaped fluorescent lamp is connected to c through a connector, a cord, and a socket.

[0006] AC power is supplied to the inverter circuit INV via a pull switch PS. As shown in FIG. 19, for example, the pull switch PS is configured by arranging fixed contacts a to h around a rotating movable contact piece.
For example, when the movable contact piece is in contact with the fixed contacts a and e, no AC power is supplied to the inverter circuit INV. When the movable contact piece comes into contact with the fixed contacts b and f by the pulling operation, AC power is supplied to the inverter circuits INV1 and INV2, and the first and second ring-shaped fluorescent lamps 13a and 13b are provided.
Lights up. When the movable contact piece contacts the fixed contacts c and g, power is supplied only to the inverter circuit INV2, so that only the second annular fluorescent lamp 13b is turned on. Further, when the movable contact piece comes into contact with the fixed contacts d and h, the second annular fluorescent lamp 13b is turned off and only the bead ball IL is turned on.

The above-mentioned lighting circuit structure 30 includes, for example, a printed board 31 on which predetermined circuit components are mounted and wired,
Connectors 32a and 32b arranged at the end of the printed board 31 and connected to predetermined circuit portions;
Connectors 33a, 33b coupled to the connector 32b, and codes 34, 34 derived from the connectors 33a, 33b;
It comprises sockets SKa, SKb for a ring-shaped fluorescent lamp connected to the leading ends of the cords 34, 34.
The printed board 31 has a guide pin 22 of the insulating member 20.
A guide hole 35 and a locking hole 36 are formed in a portion corresponding to the locking claw 23.

The cover 40 includes, for example, a cover main body 41 having a size capable of covering the lighting circuit structure 30, and a cover main body 41.
And a flange portion 42 formed integrally with the peripheral edge portion. An opening 43 for leading out the sockets SKa, SKb and the cords 34, 34 is provided on a side surface 41a of the cover body 41, and a screw hole (not shown) of the instrument body 1 and an insulating member are provided on the flange 42. Insertion hole 21 of member 20
Are formed respectively. The cover main body 41 is provided with a plurality of heat radiating holes (not shown) so that a test finger cannot enter. In particular, the cover
A code bushing 50 made of rubber, resin or the like having flexibility is attached to the opening 43 of the cable 40, and the code 34 is led out of the cover through an insertion hole 51 of the code bushing 50. . The cover 40 and the insulating member 20 are connected to the instrument body 1.
Are fixed by screwing screws into the screw holes from the insertion holes 44 and 21, and the respective sockets SKa and SKb are fixed.
Are mounted on bases (not shown) of the annular fluorescent lamps 13a and 13b.

[0009] In the lighting fixture thus configured,
The glove 14 is attached to the instrument body 1 as follows. First, as shown in FIG.
After the curved portion 16 of the glove 14 is positioned so as not to correspond to the simple attaching / detaching means 6, the glove 14 is pressed so that the rising portion 15 thereof is pressed against the taper portion 7a of the glove fixing claw 7. If you lift it as shown by the arrow (right arrow)
The glove fixing claw 7 retreats in the direction of the illustrated arrow (left arrow) against the spring 11. When the rising portion 15 passes through the taper portion 7a, the glove fixing claw 7 moves forward by the spring 11, as shown in FIG.
The locking portion 14 of the glove 14 is provided on the upper surface of the glove fixing claw 7.
a is placed. Thus, the attachment of the glove 14 to the instrument body 1 is completed. The glove 14 can be removed from the instrument body 1 by rotating the glove 14 and forcibly positioning the curved portion 16 between the glove fixing claws 7, 7. As a result, the locking portion 14a of the glove 14 is released from the locking from the glove fixing claw 7 and can be removed.

[0010]

By the way, in this luminaire, the lighting circuit assembly is assembled as follows, for example. First, as shown in FIGS. 15 and 18, the lighting circuit structure 30 is inserted into the insulating member 20, and the guide pins 22 and 22 are inserted into the guide holes 35 and 35.
The four locking claws 23 are supported by being inserted and locked in the four locking holes 36. A connector 33 having sockets SKa, SKb at its ends via the cords 34, 34 is connected to the pin connectors 32a, 32b of the lighting circuit assembly 30.
a and 33b are combined. Next, code bushing 5
The cords 34, 34 are inserted into the holes 0, 50 and the insertion holes 51, 5 thereof.
1 through the respective sockets SKa and SKb. Next, the insulating member 20 on which the lighting circuit structure 30 is mounted and supported is arranged in the appliance main body 1 so that the concave portion 20b of the insulating member 20 is inserted into the concave portion 1c of the appliance main body 1. Next, the respective sockets SKa, SKb are inserted into the openings 43, 43 of the cover 40 from inside to outside, and the code bushings 50, 50 are also inserted into the openings 43, 43 and mounted. . Then, the cover 40 is arranged on the insulating member 20 such that the lighting circuit structure 30 is covered and the insertion hole 44 matches the insertion hole 21. In this state, the screw is screwed into the screw hole of the instrument body 1 via the insertion hole 44 and the insertion hole 21 to complete the assembly.

According to this configuration, the opening 4 of the cover 40 is formed.
The code 34 derived through 3 is a code bushing 5
Since it is protected by zero, even if there is a burr or the like at the time of processing at the peripheral portion of the opening 43, damage due to the burr can be eliminated. Moreover, since the insulating member 20 is interposed between the lighting circuit assembly 30 and the appliance body 1, even if the connection between the circuit component and the printed wiring is exposed on the back side of the printed board 31, The electrical insulation between the lighting circuit assembly 30 and the appliance body 1 can be sufficiently maintained.
Further, since the lighting circuit structure 30 is covered with the cover 40, excellent effects are obtained such that an electric shock or the like can be reliably prevented without touching the hands.

However, in the assembling process of the lighting circuit assembly, the socket SKa (SKb) is inserted into the insertion hole 51 of the code bushing 50, and then the socket SKa is inserted.
(SKb) must be inserted from the inside to the outside of the opening 43 of the cover 40, and the code bushing 50 must be attached to the opening 43. There is a problem that work efficiency is impaired.

Further, since the insulating member 20 and the cover 40 are fixed to the instrument body 1 using four screws and a plurality of code bushings 50 must be prepared, the number of parts is reduced. As a result, the assembly work and inventory management become complicated, and the cost of equipment also increases.

SUMMARY OF THE INVENTION Therefore, an object of the present invention is to provide a lighting apparatus which can simplify the assembling of a lighting circuit assembly portion and improve workability by integrating a code bushing into an insulating member. It is in.

[0015]

SUMMARY OF THE INVENTION Accordingly, in order to achieve the above object, the present invention provides a lighting circuit assembly, which is obtained by mounting desired circuit components on a printed circuit board and wiring them, to an appliance body via an insulating member. The lighting circuit structure is covered with a metal cover, and at least the code connected to the fluorescent lamp from the lighting circuit structure is led out through an opening for leading out the code of the cover. In a lighting fixture, a code bushing is integrally formed on a peripheral portion of the insulating member, and a notch-shaped opening is formed in a cover portion corresponding to the code bushing. The lead-out is guided through the bushing, and the code bushing is substantially surrounded by the opening of the cover when the lighting circuit structure is covered by the cover.

According to a second aspect of the present invention, a shallow concave portion is formed in a predetermined portion, and a cut-and-raised locking portion and a slit are formed in a flat portion adjacent to the concave portion so as to be separated from each other. A tool body adjacent to the recess and having a screw hole formed in a portion where the locking portion and the slit are not formed, and a peripheral portion of the recess having a shallow bottom with an eye equal to or smaller than the recess of the tool body. A flange is formed, a supporting means is formed in the recess, a code bushing comprising a pair of code protection pieces is formed integrally with the flange, and a slit and a screw hole of the instrument body are formed in the flange. A corresponding insulating member having a substantially L-shaped engaging claw and a screw insertion hole, a desired circuit component mounted on a printed circuit board and wired, and a socket having a socket at a leading end from a predetermined circuit portion.
A lighting circuit structure derived from the cover, a flange portion at a peripheral portion of the cover body, and a notch-shaped opening formed in the cover body and the flange portion corresponding to the code bushing of the insulating member; A metal cover having a substantially L-shaped locking piece and a screw insertion hole corresponding to the locking portion and the screw hole of the appliance main body in the flange portion, and the lighting circuit assembly is provided on the insulating member. Is supported using supporting means, and
The insulating member is disposed on the instrument body so that the locking claw is inserted and locked into the slit, the cover is locked on the insulating member, and the locking piece is locked. The cord bushing is arranged so as to be substantially surrounded by the opening and the screw is screwed into the screw hole of the instrument body through the cover and the insertion hole of the insulating member. The cover and the insulating member are fixed to the appliance body.

Further, the third invention of the present invention is directed to
A bushing is erected facing the periphery of the insulating member,
A fourth aspect of the present invention is characterized in that the guide portion of the code protection piece of the code bushing is substantially composed of a pair of code protection pieces having a code guide portion at the tip. It is characterized in that it is formed in any one of a letter shape, a semicircle shape, a U shape, and an L shape.

[0018]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Next, an embodiment of a ceiling-mounted lighting fixture according to the present invention will be described with reference to FIGS. The same parts as those of the conventional example shown in FIGS. 11 to 21 are denoted by the same reference numerals, and detailed description thereof will be omitted.
In FIG. 1, reference numeral 1A denotes, for example, a circular appliance main body fixed to a ceiling surface S, and a peripheral portion thereof has a bent portion 1a which is bent substantially in an L shape downward, excluding the peripheral edge. An appropriate portion is formed with a tapered portion 1b formed by drawing, and an appropriate portion inside the tapered portion 1b is formed with a shallow concave portion 1c protruding toward the ceiling surface. Especially,
A substantially L-shaped engaging portion 1d formed by cutting and raising and a rectangular slit 1e, 1e are formed in a flat appliance main body portion on one side adjacent to the concave portion 1c so as to be separated from each other. A plurality of screw holes 1f, 1f are formed in the flat instrument body on the other side.
The screw holes 1f, 1f can be formed on the side adjacent to one side, and the number thereof can be one.

An insulating member 20A made of a resin material having excellent insulating properties, such as polypropylene, is disposed in the concave portion 1c of the instrument body 1A. This insulating member 20A
For example, a flange portion 20a placed on a flat portion of a peripheral portion adjacent to the concave portion 1c of the instrument body 1A, a shallow concave portion 20b continuous with the flange portion 20a, and screw holes 1f, 1f of the instrument body 1A. Flange 2 to correspond to
0a, a plurality of screw insertion holes 21 and 21 formed in a central portion of the recess 20b, a plurality of guide pins 22 and 22 integrally formed separately from each other, and dispersed at four corners of the recess 20b. A plurality of locking claws 23, 2 formed integrally
3, 23, 23, and a peripheral portion of the flange portion 20a facing the flange portion 20a in which the insertion holes 21 and 21 are formed,
A plurality of substantially L-shaped engaging claws 24, 24 integrally formed so as to correspond to the slits 1e, 1e of the appliance body 1A.
And a plurality of code bushings 25 formed integrally with each flange portion 20a adjacent to the flange portion 20a having the insertion holes 21 and 21 formed therein. Note that the guide pins 22 and the locking claws 23 constitute support means.

In particular, the code bushings 25, 25 are erected substantially perpendicularly to the flange portion 20a, for example, and a pair of opposing code protection pieces 26, 26 and a pair of code protection pieces are provided. And a reinforcing piece 27 formed integrally with the base portion of each of the cords 26, 26, and a code storage portion capable of storing a code 34 between the opposing code protection pieces 26, 26. 28 are formed. In addition, the cord protection pieces 26, 2
In order to easily store the code 34 in the code storing portion 28, guide portions substantially in the shape of a letter are formed at the front end of the code 6 so as to face each other. Shape, L
It can also be configured in the shape of a letter.

The lighting circuit structure 30 supported by the insulating member 20A by using a supporting means includes a metal cover 40.
A. The cover 40A is made of, for example, a decorative steel plate.
a cover body 41 having a concave portion deeper than c;
The flange portion 20 of the insulating member 20A is provided on the periphery of the main body 41.
a integrally formed flange portion 42 corresponding to
And a plurality of notched openings 4 formed so as to extend from appropriate side surfaces 41a of the cover body 41 to the flange portions 42.
3A, 43A, a plurality of insertion holes 44, 44 formed in the flange portion 42 so as to correspond to the screw holes 1f, 1f of the instrument body 1A, and the flange portion 42 in which the insertion holes 44, 44 are formed. A substantially L-shaped locking piece 45 integrally formed at the peripheral edge of the flange portion 42 so as to correspond to the locking portion 1d of the instrument body 1A. In particular, the opening 43A in the side surface 41a is formed by the insulating member 20A.
Is formed so as to substantially conform to the outer shape of the code bushing 25, and when the code bushing 25 is surrounded by the opening 43A, the code protection piece 2 is formed.
6 and 26 are configured not to be inadvertently expanded.

Next, a method of assembling the lighting circuit assembly will be described. First, as shown in FIG.
Is lowered, the guide pins 22 are inserted into the guide holes 35, and the assembling position of the lighting circuit assembly 30 with respect to the insulating member 20A is determined. In this state, when the lighting circuit structure 30 is further lowered, the four locking claws 23 of the insulating member 20A are inserted into the four locking holes 36 of the lighting circuit structure 30 and locked. Then, the connectors 33a and 33b are connected to the pin connectors 32a and 32b of the lighting circuit assembly 30.

Next, the insulating member 20A on which the lighting circuit structure 30 is mounted is temporarily disposed in the concave portion (1c) of the appliance body 1A. That is, as shown in FIG. 4, the locking claws 24, 24 of the insulating member 20A are inserted and locked into the slits 1e, 1e of the appliance body 1A, and the flange portion 20a is flat adjacent to the concave portion 1c of the appliance body 1A. The concave portion 20b is accommodated in the concave portion 1c so as to be placed on a proper instrument main body. The connection between the pin connectors 32a and 32b and the connectors 33a and 33b can be performed before the lighting circuit assembly 30 is incorporated into the insulating member 20A or after the insulating member 20A is temporarily disposed on the appliance body 1A.

Next, as shown in FIG.
4 is a code bushing 25, 2 in the insulating member 20A.
5 are stored in the code storage sections 28, 28. In particular,
When the cord 34 is pushed down after the cord 34 is positioned at the letter-shaped guide portion of the cord protection pieces 26, 26, the code protection pieces 26, 26 are deformed outward ( As a result, the code 34 is stored in the code storage unit 28.
After the storage, the cord protection piece 26 is returned to its original shape, so that the cord 34 is connected to the code storage portion 28 via the guide portion.
There is no escape from.

Next, in this state, the cover 40A
Are disposed on the insulating member 20A so that the lighting circuit structure 30 is covered. Specifically, as shown in FIGS. 1 to 3, first, the cover 40A is inclined with respect to the instrument body 1A, and then the locking piece 45 of the cover 40A is engaged with the instrument body 1A. The cover 40A is inserted and locked into the portion 1d, and then rotated while maintaining the locked state so as to be parallel to the instrument body 1A. At this time, the code bushings 25, 25 are accommodated in the openings 43A, 43A. In this state, the screws 60, 60 are inserted into the insertion holes 44, 4 of the cover 40A.
4 is inserted into the screw holes 1f, 1f of the instrument body 1A through the insertion holes 21, 21 of the insulating member 20A, thereby completing the assembly.

According to this embodiment, since the code bushings 25, 25 are integrally formed on the flange portion 20a of the insulating member 20A, the cover-4 is attached to the insulating member 20A.
When OA is disposed so as to cover the lighting circuit structure 30 mounted and supported on the insulating member 20A, the code bushing 25 is automatically surrounded by the opening 43A of the cover 40A. Therefore, since the work of attaching a separate code bushing to the cover as in the related art can be completely omitted,
Assembly work can be performed efficiently.

A guide portion is formed at the distal end of the code protection piece 26 of the code bushing 25, and the code protection pieces 26, 26 are joined by a reinforcing piece 27. For this reason, the code 34 can be simply and easily stored in the code storage portion 28 simply by positioning and pressing the code 34 on the guide portion, and the code storage of the code 34 is also possible. Code protection pieces 26, 26 when stored in the part 28
Damage can be prevented.

In addition, since the code bushing 25 is formed integrally with the flange portion 20a of the insulating member 20A, the number of parts is reduced to one, so that inventory management is facilitated and cost is reduced. Can be reduced.

Further, since a pair of locking claws 24, 24 are formed on the flange portion 20a of the insulating member 20A,
The locking claws 24, 24 are inserted and locked into the slits 1e, 1e of the tool body 1A during the temporary placement on the tool body 1A, so that the insulating member 20A does not shift when the cover 40A is mounted. Therefore, provisional placement of the cover 40A can be easily performed.

A locking claw 45 is formed on the flange portion 42 of the cover 40A, and the locking claw 45 is locked in a state where it is positioned at the locking portion 1d of the instrument body 1A. In addition, merely by locking the locking claw 45 to the locking portion 1d, the positional relationship of the cover 40A to the instrument body 1A can be set to a predetermined positional relationship. Therefore, the assemblability can be improved in combination with the above configuration. In addition, if the insulating member 20
Even if the locking claws 24, 24 of A are broken, the device body 1
It does not fall off from A and can always maintain sufficient safety.

Further, the cover 40A, the insulating member 20A
Is fixed to the device main body 1A by the two screws 60 in addition to the locking of the locking claw 45 to the locking portion 1d. Workability at the time can be greatly improved.

FIGS. 9 and 10 show another embodiment of the insulating member according to the present invention, which is basically the same as the above-described embodiment. The difference is that this insulating member 20
B, a pair of code protection pieces 26, 26 are attached to the flange portion 20a.
Is simply erected, and the reinforcing piece 27A is replaced by a part of the flange portion 20a.

According to this embodiment, since the structure of the mold of the insulating member 20B is simplified as compared with the above-described embodiment, the molding cost can be reduced.

It should be noted that the present invention is not limited to the above-described embodiment, but includes, for example, a direct-mount type lighting device for a ring-type fluorescent lamp, a direct-mount type fluorescent lamp, a compact fluorescent lamp, and the like. The present invention is also applicable to lighting equipment, code pendants, and pipe pendant equipment. In addition, the fixture body can be attached to the ceiling by using a connecting means such as a hook seal, or directly by screws or the like. May be configured in a polygonal shape. Further, the lighting circuit structure is a two-stone type inverter circuit, but an appropriate circuit configuration such as a one-stone type inverter circuit can also be used. The number of code bushings integrated with the insulating member is determined by the number of codes derived from the cover, and the location of the code bushings is appropriately determined according to the position of the derived codes. Can be selected. Furthermore, the locking claw of the insulating member and the locking piece of the cover can be omitted.

[0035]

As described above, according to the present invention, since the code bushing is integrally formed on the peripheral edge of the insulating member, the cover is mounted on the insulating member and supported by the insulating member. When arranging the lighting circuit structure to cover it,
The code bushing is automatically surrounded by the opening.
Therefore, the separate code bushing is covered as in the prior art.
The assembly work can be performed efficiently, since the work of mounting on the vehicle can be completely omitted.

Further, since the guide portion is formed at the tip of the code protection piece in the code bushing, the code can be formed only by placing the code on the guide portion and pressing it.
Can be easily and easily stored in the storage section. Therefore, it is possible to efficiently store the code in the code bushing.

Further, since the code bushing is formed integrally with the peripheral portion of the insulating member, the number of parts is reduced to one, so that not only inventory management can be facilitated but also the cost can be reduced.

[Brief description of the drawings]

FIG. 1 is a plan view of a lighting circuit structure portion showing a first embodiment of a lighting fixture according to the present invention.

FIG. 2 is a sectional view taken along line AA of FIG.

FIG. 3 is a sectional view taken along line BB of FIG. 1;

FIG. 4 is a sectional view taken along the line CC of FIG. 1;

FIG. 5 is a plan view of a main part of the device main body according to the present invention.

FIG. 6 is a sectional view taken along line DD of FIG. 5;

FIG. 7 is a perspective view of an insulating member and a lighting circuit structure constituting a lighting circuit structure portion according to the present invention.

FIG. 8 shows an insulating member and a cover for explaining an assembling method.
FIG.

FIG. 9 is a sectional view of a main part showing another embodiment of the insulating member according to the present invention.

FIG. 10 is a plan view of FIG. 9;

FIG. 11 is a side cross-sectional view of a lighting apparatus according to a conventional example in a glove removal state.

FIG. 12 is a view taken in the direction of arrows EE in FIG. 11;

FIG. 13 is an exploded perspective view of the glove simple attaching / detaching means shown in FIG. 19;

FIG. 14 is a view as viewed in the direction of arrows FF in FIG. 11;

FIG. 15 is a cross-sectional view of a lighting circuit structure according to a conventional example.

FIG. 16 is a sectional view taken along line GG of FIG. 15;

17 (a) is a sectional view and FIG. 17 (b) is a front view of a conventional code bushing.

FIG. 18 is an exploded perspective view of a lighting circuit structure according to a conventional example.

FIG. 19 is a circuit diagram of the lighting circuit structure shown in FIG. 18;

20 is a specific circuit diagram of the lighting circuit shown in FIG.

21 (a) and 21 (b) are views for explaining a method of attaching the glove to the instrument main body, wherein FIG. 21 (a) is an enlarged sectional view of a main part showing a state in which the glove is being attached, and FIG. The principal part expanded sectional view.

[Explanation of symbols]

 S Ceiling SKa, SKb socket 1A Instrument body 1c, 20b Recess 1d Locking portion 1e Slit 1f Screw hole 20A, 20B Insulating member 20a, 42 Flange portion 21, 44 Insertion hole 22 Guide pin (support means) 23 Locking claw (support) Means) 24 Locking claw 25 Code bushing 26 Code protection piece 27, 27A Reinforcement piece 28 Code storage unit 30 Lighting circuit structure 31 Printed board 32a, 32b, 33a, 33b Connector 34 Code 35 Guide hole 36 Locking hole 40A Cover 41 Cover body 43A Opening 45 Locking piece 60 Screw

Claims (4)

[Claims] 1. A lighting circuit structure, which is obtained by mounting and wiring desired circuit components on a printed board, is disposed on an apparatus body via an insulating member, and the lighting circuit structure is formed of a metal cover.
And at least a cord connected to the fluorescent lamp from the lighting circuit assembly is led out through a cord lead-out opening of the cover. While forming the bushing integrally,
A notch-shaped opening is formed in the cover portion corresponding to the bushing, and the code is led out through the code bushing, and the cover is used to cover the lighting circuit structure by the cover. A lighting fixture characterized by being substantially surrounded by an opening of a cover. 2. A shallow concave portion is formed in a predetermined portion, and a cut-and-raised locking portion and a slit are formed in a flat portion adjacent to the concave portion so as to be separated from each other. A flange portion is formed on the periphery of a recess having a shallow bottom with an eye that is equal to or smaller than the recess of the appliance body, and a flange portion is formed in the recess. The support means is formed integrally with a code bushing comprising a pair of code protection pieces on the flange portion, and the flange portion has a substantially L-shaped engagement corresponding to the slit and the screw hole of the instrument body. A lighting circuit assembly formed by mounting desired circuit components on a printed board, wiring the same, and leading a code having a socket at a tip from a predetermined circuit portion, and an insulating member having claws and screw insertion holes formed therein. And the cover body A flange portion is provided on the peripheral portion, and a notch-shaped opening is formed in the cover body and the flange portion corresponding to the code bushing of the insulating member. A metal cover formed with a corresponding substantially L-shaped engaging piece and a screw insertion hole, supporting the lighting circuit assembly on the insulating member by using a supporting means, and forming a cord. This insulating member is led out through a cord bushing, and this insulating member is arranged on the appliance body so that the locking claw is inserted and locked in the slit, the cover is provided on the insulating member, and the locking piece is provided on the locking portion. The cord bushing is arranged so as to be substantially surrounded by the opening, and a screw is screwed into the screw hole of the instrument body through the cover and the insertion hole of the insulating member. A lighting fixture characterized in that an insulating member is fixed to a fixture body. 3. The cord bushing comprises a pair of cord protection pieces which stand upright on a peripheral portion of the insulating member and have a code guide portion at an end thereof. The lighting device according to claim 1. 4. A guide portion of a code protection piece of the code bushing, wherein the guide portion is formed in any one of a substantially rectangular shape, a semicircular shape, a U shape, and an L shape. The lighting fixture according to claim 3.