JPS6220642B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a fluorescent lamp fixture with a base, which is used by screwing the base into a light bulb socket.

FIG. 1 shows a conventional fluorescent lamp fixture with a cap, which includes a fixture body 10' in the center of the fixture, and an annular fluorescent lamp 2 arranged around the fixture body 10'.
0', and a strip-shaped lamp holder 30' for attaching the annular fluorescent lamp 20' to the appliance body 10'. There is a cap 13' on the top of the device body 10', which is screwed into a light bulb socket (not shown) for use.

The problem with the device shown in Figure 1 above is that the lamp holder 30' is large, equivalent to the diameter of the annular fluorescent lamp 20', and since the holder 30' cannot be disassembled, packaging and transportation costs increase. That's true. Furthermore, since the lamp holder 30' is screwed to the lower surface of the appliance main body 10', the mounting screws 91 and 92 are exposed on the lower side, resulting in an unsightly appearance.

On the other hand, as seen in Japanese Utility Model Application Publication No. 57-31721, in order to save on packaging and transportation costs, the lamp holder is made particularly small, corresponding to the radius of the lamp, and a plurality of such holders are used, and each holder is It is also known to be detachably attached to the main body. Each holder disclosed in the same publication is attached by detachably inserting one end thereof into a receiving portion of the instrument body. For this reason,
It is not necessary to screw each individual lamp holder together.

The receiving portion described in Japanese Utility Model Application Publication No. 57-31721 is formed in the shape of a bag on the outer surface of the side wall of the instrument body.
However, if the receiving part into which the lamp holder is inserted is made small, the lamp holder will not be securely fixed, which is not good. On the other hand, if it is large, the cost will be high and the appearance will be poor.

The present invention eliminates the drawbacks of the conventional lamp holder by devising a structure of a portion of the device body corresponding to the receiving portion into which one end of each lamp holder is inserted.

The embodiments shown in FIGS. 2 to 6 will be described below. This fluorescent lamp fixture with a cap includes a fixture main body 10 at the center of the fixture, an annular fluorescent lamp 20 arranged around the fixture main body 10, and a plurality of strip-like strips to which the annular fluorescent lamps 20 are attached to the fixture main body 10. A lamp holder 30 is provided.

The main body 10 of the device includes main body cases 11 and 12, and a main body case 11, which is screwed into a light bulb socket (not shown).
12, a base 13 at the top, a mounting base 14 installed inside the main body cases 11 and 12, a stabilizer 151, a starter 152 for starting, and a capacitor 15 for noise prevention.
It has 3.

The main body cases 11 and 12 have a bottomed cylinder part 11 and a lid part 1.
2 are combined vertically to form a case. The mounting base 14 is a durable U-shaped metal fitting for fixing the heavy stabilizer 151 inside the main body cases 11 and 12. In addition, the mounting base 14 connects the bottomed cylindrical portion 11 and the lid portion 12 with set screws 141 and 142.
It also serves as a connection via. The stabilizer 15
1. The starter 152 and the capacitor 153 are electrical components that constitute a lighting device for the annular fluorescent lamp 20. The starter 152 and capacitor 153 are simply assembled and are not particularly fixed.

Between the upper surface of the bottom wall of the main body cases 11 and 12 and the lower surface of the bottom of the mounting base 14,
Insertion grooves 115 are formed along radius lines 1 and 12. This insertion groove 115 serves as a receiving portion into which one end 32 of the lamp holder 30 is inserted. The number of insertion grooves 115 is two, which is the same as the number of lamp holders 30. A gently sloped slope portion 116 is formed on the lower wall (part of the upper surface of the bottom wall of the main body cases 11, 12) in the middle of the insertion groove 115. Further, a cut groove 143 extending along the longitudinal direction of the insertion groove 115 is formed in the upper wall of the insertion groove 115 (a part of the lower surface of the mounting base 14).

A plurality of insertion holes 116 are provided at the lower ends of the side walls of the main body cases 11 and 12. Each insertion hole 116
The position corresponds to each insertion groove 115. Further, the shape of each insertion hole 116 is a modified inverted T-shape corresponding to the cross section of the insertion groove 115 including the cut groove 143. Therefore, the insertion hole 116 becomes the entrance of the insertion groove 115.

Reference numeral 118 denotes a plurality of protrusions formed on the bottom upper surface of the mounting base 14. These protrusions 118 support the starter 152 and capacitor 153 from below. This includes the starter 152 and capacitor 153.
This is to prevent the insertion groove 115 or the cut groove 143 from being clogged by entering the vicinity of the insertion groove 115.

Each lamp holder 30 has one end of a strip plate curved, and this portion serves as a holding piece 31 that abuts and holds the outer surface of the annular fluorescent lamp 20. The other end of each lamp holder 30 is an insertion groove 115
It becomes the insertion piece 32 for the. Reference numeral 33 denotes a guide formed by cutting and raising a portion of the tip of the insertion piece 32 at a right angle. Reference numeral 34 denotes a stopper formed by shallowly cutting and raising a midway portion of the insertion piece 32 into a substantially V-shape.

Each lamp holder 30 is attached to the fixture body 1 after the fixture body 10 is assembled and before the annular fluorescent lamp 20 is attached.
0, it is attached as follows. That is, the insertion piece 32 of the lamp holder 30 on the instrument body 10 side is pushed through the insertion hole 117 of the instrument body 10 into the insertion groove 115 at the back thereof. At this time, the guide 33 of the lamp holder 30 faces upward,
In order to match the modified inverted T shape of the insertion hole 117,
Adjust the orientation of the lamp holder 30. Insert piece 3
2, the guide 32 is inserted into the cut groove 143.
, and stops when it hits the inner end of the cut groove 143. Further, the stopper 34 of the lamp holder 30 resiliently engages with the inclined portion 116 in the insertion groove 115. This is to prevent the lamp holder 30 from wobbling and to prevent it from undesirably coming off, but it is also possible to remove the lamp holder 30 by pulling it forcefully.

The lower set screw 142 of the set screws 141 and 142 connects the lower ends of the side walls of the main body cases 11 and 12 and the bottom of the mounting base 14. This set screw 142 is attached to the main body case 11, 12.
The lamp holder 30 is disposed at a position on the upper surface side of the lamp holder 30 at the lower end of the side wall. In this embodiment, this position is close to and directly above the insertion hole 117. The reason why the set screw 142 is arranged as described above is that the set screw 142 is placed in the lamp holder 3.
This is to hide it behind the 0 so that it cannot be seen from below.

As described above, the present invention forms a plurality of insertion grooves between the upper surface of the bottom wall of the main body case and the lower surface of the bottom of the mounting base, and inserts holes at positions corresponding to the respective insertion grooves at the lower end of the side wall of the main case. form,
These insertion grooves and insertion holes serve as receiving portions into which the insertion piece of the lamp holder is inserted and engaged.

Both the bottom wall of the main case and the bottom of the mount are strong parts, and the insertion groove can be made long enough to match the radius of the main case, so the lamp holder can be securely fixed. be able to.

Furthermore, the bottom wall of the main body case and the mount for attaching the stabilizer are used to construct the insertion groove, and the dedicated parts or parts are eliminated, resulting in an inexpensive structure.

Furthermore, in the present invention, a set screw connecting the lower end of the side wall of the main body case and the bottom of the mount is arranged at a position that is difficult to see on the upper surface side of the lamp holder at the lower end of the side wall of the main body case. For this reason,
Coupled with the structure in which the insertion groove on the bottom wall of the main body case cannot be seen from below, it is possible to provide an instrument with good appearance.

[Brief explanation of the drawing]

FIG. 1 is a longitudinal sectional view of a conventional instrument. Figure 2 and the following are related to the device of the present invention, of which the second
The figure is a perspective view of the device, Figure 3 is an enlarged vertical sectional view, Figure 4 is a cross-sectional view of the appliance with one of the lamp holders removed, and Figure 5 is the shape of the insertion hole in the appliance body. FIG. 6 is a perspective view of the lamp holder. 10 is the instrument body, 11 is the bottomed cylinder part of the main body case, 12 is the lid part of the main body case, 115 is the insertion groove,
116 is an inclined part, 117 is an insertion hole, 118 is a protrusion, 13 is a base, 14 is a mounting base, 142 is a set screw, 151 is a ballast, 20 is an annular fluorescent lamp, 3
0 is a lamp holder, 31 is a holding piece, and 32 is an insertion piece.

Claims (1)

[Claims] 1 The instrument main body 10 in the center of the instrument and the instrument main body 1
0, and a plurality of strip-shaped lamp holders 30 for attaching the annular fluorescent lamps 20 to the instrument main body 10.
1, 12, a base 13 at the top of the main body cases 11, 12 for screwing into a light bulb socket, and a ballast 151 mounted inside the main body cases 11, 12 via a mounting base 14, In the fluorescent lamp fixture with a base, the one end of the annular fluorescent lamp 20 side of the annular fluorescent lamp 20 is in contact with the outer surface of the annular fluorescent lamp 20 and has a holding piece 31 for holding it. A plurality of insertion grooves 115 are formed between the mounting base 14 and the bottom lower surface of the main body case 1.
Each of the insertion grooves 115 at the lower end of the side walls of Nos. 1 and 12
An insertion hole 116 is formed at a position corresponding to the insertion hole 116, and the insertion piece 32 at the end of the lamp holder 30 on the side of the instrument body 10 is elastically inserted into and engaged with the insertion groove 115 through the insertion hole 116. , a set screw 142 connecting the lower ends of the side walls of the main body cases 11, 12 and the bottom of the mounting base 14 is arranged at a position on the upper surface side of the lamp holder 30 at the lower ends of the side walls of the main body cases 11, 12. A fluorescent lamp fixture with a cap, which is characterized by: