JPS6119452Y2 - - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to a lighting fixture equipped with a switch.

Conventionally, in fluorescent lamp equipment, etc., as shown in Japanese Unexamined Patent Application Publication No. 53-122274, a wiring device having a glow socket, a switch, etc. is built into a chassis along with a ballast, and the wiring device is installed on the underside of the chassis. A chassis cover is placed over the ballast, the protrusion provided on the wiring device is fixed by coming into contact with the inner surface of the chassis cover, and the pull cord of the switch is guided downward from the pull cord hole of the chassis cover. ing.

However, when operating such a switch, if you pull the drawstring strongly, downward force is applied to the switch part, which may cause the switch part to crack, or the vibrations caused by pulling the drawstring may affect the terminal part. , there are problems such as solder parts coming off. Also, usually
Since the drawstring is led out from the drawstring hole of the chassis cover made of a metal plate such as an iron plate, when the drawstring moves up and down, the drawstring is easily rubbed against the edge of the drawstring hole and damaged.

In addition, as shown in Japanese Utility Model Publication No. 49-30714, there is a method in which a cylindrical spacer is interposed between the switch and the chassis cover, and a drawstring is passed through the spacer. In a chassis cover made of a metal plate, the drawstring is likely to be rubbed easily, and a cylindrical body as a spacer is required separately, or if it is formed integrally with the chassis cover, the lower end opening of the drawstring hole is closed during the pressing process. It has no choice but to grow,
It is undesirable as it spoils the appearance.

The present invention is intended to solve the above-mentioned problems, and aims to prevent the switch from being damaged when the switch is operated.

The present invention provides a lighting device that includes a wiring device having a switch, a chassis on which the wiring device is mounted, and a chassis cover attached to the chassis so as to cover the wiring device. A switch guide tube through which the operating body of the switch is inserted is provided protruding from the bottom surface of the board of the wiring device main body, and a small-diameter cylindrical fitting portion is integrally provided at the lower end of the switch guide tube via a step. death,
This fitting part is fitted into a switch hole formed in the chassis cover and protrudes downward,
A stepped portion at the lower end of the switch guide tube is engaged with and supported by the upper surface of the chassis cover at the edge of the switch hole.

An embodiment of the present invention will be described below with reference to the drawings.

Reference numeral 1 denotes a wiring device for a fluorescent lamp. This wiring device 1 comprises a wiring device main body 2. This main body 2 is integrally formed from an insulating synthetic resin and has a rectangular base plate 3 that is nearly square.
Two cylindrical glow sockets 4 are provided adjacent to each other as wiring sections on one end side of the lower surface of the substrate 3, and a cylindrical night light socket 5 and a cylindrical switch guide tube 6 are provided adjacent to each other as other wiring sections on the other end side of the lower surface of the substrate 3.
The glow socket 4, the night light socket 5 and the switch guide tube 6 are arranged adjacent to each other in a substantially rectangular shape. The glow socket 4 and the night light socket 5 are provided with a receiving step 7 on the outside, and the switch guide tube 6 has a small diameter cylindrical fitting portion 6a protruding from the lower end thereof via a ring-shaped step 8 on the outer periphery at the same height as the receiving step 7.

An end wall 9 is provided protrudingly from one end of the upper surface of the substrate 3,
A plurality of lead wire grooves 10 are formed in this end wall 9. Further, an upper extension part 11 of the switch guide cylinder 6 is protruded from the upper surface of the substrate 3, and an annular switch step part 12 is formed on the outer periphery of the base end of the upper extension part 11, and a ring-shaped switch step part 12 is formed around the switch step part 12. A plurality of protrusions 13 are arranged radially. moreover,
Two capacitor storage recesses 14 are provided in the middle portion of the upper surface of the substrate 3. Then, the substrate 3
A plurality of engaging portions 15 are cut out and formed in the peripheral edge.

Further, the wiring device 1 includes a conductive plate 21. This conductive plate 21 is made of a thin conductive metal plate such as brass, which has a rectangular shape almost the same as that of the main body 2, and a plurality of circuit-shaped conductive bands 2 are formed from the single plate.
2 are integrally punched and formed, and each conductive band 22
A lamp terminal 23 for two lamps is formed at one end of the lamp.

A glow terminal 24 inserted into the two glow sockets 4 of the main body 2 and a night light terminal 25 inserted into the night light socket 5 of the main body 2 are bent downward on the conductive band 22. A circular common switch terminal 26 is fitted to the outer periphery of the upper extension 11 of the switch guide tube 6 of the main body 2, and a plurality of changeover switch terminals 27 are provided around the common switch terminal 26. There is. Further, a capacitor terminal 28 corresponding to each capacitor housing recess 14 of the main body 2 is provided in the middle portion of the conductive band 22, and ballast terminals 29 are provided on both sides of the conductive band 22. Furthermore, a narrow connection portion 30 is formed between each conductive band 22.

Further, the wiring device 1 is provided with a cover 31. This cover 31 is integrally formed of insulating synthetic resin and has a square-shaped cover plate 32 corresponding to the substrate 3 of the main body 2.
A cylindrical portion 33 corresponding to the switch guide cylinder 6 of the main body 2 is protruded from the upper surface of the main body 2, and opposing guide grooves 34 are formed on the inner wall of the cylindrical portion 33 as shown in FIGS. 4 and 5. There is. Furthermore, the cover plate 3
As shown in FIG. 4, a recess 35 corresponding to the capacitor storage recess 14 of the main body 2 is formed in the middle part of the cover plate 32, and an engaging part 35 corresponding to the engaging part 15 is formed at the edge of the cover plate 32. A claw 36 is provided to protrude downward.

Then, the conductive plate 21 is placed on the top surface of the substrate 3 of the main body 2.
Place. Then, the common switch terminal 26 is fitted to the outer periphery of the upper extension part 11 of the switch guide cylinder 6 and positioned on the switch stepped part 12, and each changeover switch terminal 27 is positioned between each protrusion 13,
Further, the glow socket terminal 24 and the night light terminal 25 are inserted into the glow socket 4 and the night light socket 5 of the main body 2.

In this state, install the switch mechanism. That is, a coil spring 41 is fitted onto the outer periphery of the upper extension part 11 of the switch guide cylinder 6 on the common switch terminal 26, and a pair of contact pieces 42 are fitted to the outer periphery of the upper extension part 11 of the switch guide cylinder 6.
A ring-shaped contactor 44 having a pair of upward engaging pieces 43 is rotatably fitted thereinto. On the other hand, an operating body 46 is formed in the shape of a long and thin plate with engagement protrusions 45 protruding from both sides of the upper end and a twisted upper part.A coil spring 47 is fitted into this operating body 46, and the contactor 44 A rotator 49 made of insulating synthetic resin having a serrated engagement surface 48 that engages with the upward engagement piece 43 is connected to a flat through hole 5 in the center thereof.
0, it is fitted so that it can move forward and backward. In this case, the through hole 50 of the rotator 49 is formed with enough room to allow the twisted portion of the operating body 46 to pass through. This coil spring 47 and rotator 49
The lower part of the operating body 46 having a diameter is inserted into the switch guide cylinder 6, and the rotor 49 is rotatably fitted to the outer circumference of the upper end of the switch guide cylinder 6.

Also, insert the lower part of the capacitor 51 into each capacitor storage recess 14 of the main body 2, and
The lead leg 52 bent into a letter shape is soldered to the capacitor terminal 28 of the conductive band 22.

Further, a plurality of lead wires 54 are respectively connected to a pair of fluorescent lamp sockets 53, and the core wires of each lead wire 54 are connected to each lamp terminal 2 of the conductive band 22.
3 by spot welding, soldering, etc., and the middle of each lead wire 54 is press-fitted into the lead wire groove 10 of the main body 2 and engaged.

Next, the cover 31 is placed on the main body 2. Then, the operating body 46 is inserted into the cylindrical portion 33, and the engaging protrusions 45 on both sides of the upper end of the operating body 46 are engaged with the guide groove 34, thereby forming a switch 56. 51 into the recessed part 35
position within.

Then, the cover 31 is pressed, each engaging claw 36 is engaged with each engaging part 15 of the main body 2, and the cover 31 is attached to the main body 2 with the conductive band 22 sandwiched between them. Each circuit network is formed by cutting the narrow connecting portions 30 between the wires, and the wiring device 1 is constructed as a unit. Then, a drawstring 55 is connected to the lower end of the operating body 46.

The engaging portion 15 and the engaging claw 36 may be provided oppositely in the main body 2 and the cover 31.

Note that when the switch 56 pulls the drawstring 55 connected to the lower end of the operating body 46, the operating body 46 descends with its engaging protrusion 45 engaged with the guide groove 34 of the cover 31. The rotator 49, which is fitted with a margin in the through hole 50, is connected to the operating body 46.
The engaging surface 48 engages the upward engaging piece 43 of the contact 44 to rotate the contact 44, and the pair of contact pieces 42 are connected to the conductive band 2.
When the operating body 46 is brought into contact with the changeover switch terminal 27 of No. 2 and the tension on the pull string 55 is released, the operating body 46 returns upward by the return force of the spring 47, and only the rotator 49 is returned to rotate at a predetermined angle. be.

Reference numeral 61 denotes a chassis integrally formed from a metal plate, and a flange 6 is provided on the outer periphery of the lower end of the chassis 61.
2 is formed by bending. Stabilizers 63 are fixed to both sides within the chassis 61, and each stabilizer 63 has a pair of terminals 64 on its inner lower surface.

Reference numeral 65 denotes a chassis cover integrally formed from a metal plate that also functions as a reflector. This chassis cover 65 has a flange 66 bent at the outer circumference of the upper end, which corresponds to the flange 62 of the chassis 61. A pair of recesses 67 for leading out lead wires are formed on the sides. Furthermore, socket holes 68 and 69 corresponding to the pair of glow sockets 4 and night light sockets 5 of the wiring device 1, and a switch hole 70 corresponding to the fitting portion 6a of the switch guide tube 6 are bored in the lower surface of the chassis cover 65. ing.

Then, the wiring device 1 is placed inside the chassis 61 and each ballast terminal 29 is connected to each terminal 64 of the ballast 63.
Solder the connection and fix it. Next, a chassis cover 65 is placed on the lower surface of the chassis 61 to cover the wiring device 1, and the lower parts of the glow socket 4 and night light socket 5 are made to protrude from the socket holes 68 and 69, and the fitting part 6a of the lower end of the switch guide tube 6 is inserted. is fitted into the switch hole 70 and protrudes downward, and the step 8 at the lower end of the switch guide tube 6 is engaged with and supported by the upper surface of the chassis cover 65 at the edge of the switch hole 70, thereby forming a socket for the light lamp. 53 lead wire 54 is led out from the lead wire recess 67 of the chassis cover 61 on the mating surface with the chassis 61, the flanges 62 and 66 of the chassis 61 and the chassis cover 65 are opposed, and the screw 7 is inserted.
1, and each receiving step part 7 of the wiring device 1 is pressed and supported by the inner surface of the chassis cover 65.

Although not shown, a glow lamp is attached to the glow socket 4, and a night light socket 5 is attached.
A night light is attached to the chassis 61, and a fluorescent lamp socket 53 is attached to the terminal of the fluorescent lamp attached to the chassis 61.
Connect.

According to the present invention, a switch guide tube is provided protruding from the lower surface of the circuit board of the wiring device main body in the wiring device, and the fitting portion at the lower end of the tube is fitted into the switch hole in the chassis cover to protrude downward, and the switch guide tube By engaging and supporting the step at the lower end of the tube with the upper surface of the chassis cover at the edge of the switch hole, the switch part of the wiring device is firmly supported by the chassis cover, and is protected against shock or vibration when operating the switch. It can be used safely without damaging the switch part or coming off the solder part. Furthermore, since the operating body of the switch is inserted into the switch guide cylinder, there is no possibility that the drawstring will be rubbed against the edge of the hole in the chassis cover and damaged when the operating body is moved up and down by the drawstring. Furthermore, since the small-diameter fitting portion of the switch guide cylinder is fitted into the switch hole of the chassis cover and assembled, the wiring device and the chassis cover can be easily and reliably positioned.

[Brief explanation of the drawing]

The figures show one embodiment of the present invention, in which Fig. 1 is a partially cutaway side view of a lighting fixture, Fig. 2 is an exploded perspective view thereof, and Fig. 3 is an exploded perspective view of a wiring device.
FIG. 4 is a sectional view of a part of the assembled state, and FIG. 5 is a sectional view of the part shown in FIG. 4. 1... Wiring equipment, 2... Wiring equipment body, 3...
Board, 6... Switch guide tube, 6a... Fitting part,
8... Step portion, 46... Operating body, 56... Switch, 61... Chassis, 65... Chassis cover, 70... Switch hole.

Claims (1)

[Scope of Claim for Utility Model Registration] A lighting device comprising a wiring device having a switch, a chassis on which the wiring device is mounted, and a chassis cover attached to the chassis to cover the wiring device, A switch guide tube, into which the operating body of the switch is inserted, protrudes from the bottom surface of the circuit board of the lighting equipment main body, and a small-diameter cylindrical fitting portion is integrated into the lower end of the switch guide tube via a step. The fitting portion is fitted into a switch hole formed in the chassis cover and projects downward, and the stepped portion at the lower end of the switch guide cylinder is engaged with the upper surface of the chassis cover at the edge of the switch hole. A lighting fixture characterized by being supported together.