JPS6029769Y2 - incandescent bulb stand - Google Patents

Description

[Detailed description of the invention] This invention relates to an incandescent bulb stand in which the area around the incandescent bulb is covered with a shade.

In conventional incandescent bulb stands, a threaded part is formed at the bottom of the light bulb socket, and the threaded part is passed through the face of the stand body to attach the socket, and a nut is fitted into the threaded part from below the stand body. The light bulb socket is fixed to the stand body by tightening.

In addition, a shade support metal fitting is used, which has a cylindrical shape with a diameter slightly smaller than the outside diameter of the light bulb socket as a whole, has a cutout part formed in a part of its side surface, and has a fixing part made of an elastic material. The shade support fitting is fixed to the light bulb socket by fitting the fixing part to the outer surface of the light bulb socket.

However, in conventional incandescent bulb stands, when fixing the light bulb socket to the stand body, the nut is tightened below the stand body, which requires time and effort to tighten the nut below the stand body.

Particularly when the stand body is small, the space inside the stand body for tightening the nuts becomes narrow, making the nut tightening work very difficult.

Also, when tightening the nut, the light bulb socket will spin freely and the tightening will be incomplete, so it is recommended to use a two-point stopper to prevent it from turning, or to provide a protrusion on the light bulb socket and the stand body to prevent it from turning. This resulted in the disadvantage that the number of parts increased.

Furthermore, when attaching the shade support fitting, the fixing portion of the shade support fitting must be fitted into the light bulb socket while the shade is supported by the shade support fitting, resulting in very poor workability.

In view of the above circumstances, the purpose of this invention is to provide an incandescent bulb stand that can be easily assembled without increasing the number of parts and has good assembly workability.

This idea can be summarized as follows.

Threaded portions are formed on the outer periphery of both ends of the socket cover that houses and fixes the light bulb socket.

Attach a flat socket fixing metal fitting that is longer than the cover diameter to the bottom of the socket cover.

A threaded portion that engages with the threaded portion of the socket cover is formed on the shade support fitting.

A socket cover housing cylindrical portion having an inner diameter substantially the same as the outer shape of the socket cover is formed protruding from the upper part of the stand body.

With this configuration, the socket cover, with the socket fixing metal fitting attached, is housed in the cylindrical part from below the stand main body, and the threaded part of the shade support metal fitting is engaged and fixed with the threaded part of the socket cover. It is characterized by being made to do.

Examples of this invention will be described below with reference to the drawings.

FIG. 1 is a partial sectional view of an incandescent bulb stand which is an embodiment of this invention, and FIG. 2 is an exploded perspective view of the same incandescent bulb stand.

The stand main body 1 consists of a base part 2 and a cylindrical socket housing part 3 formed protrudingly from the upper surface of the base part 2.

The platform part 2 is formed in a columnar shape and has a hollow part 4 inside,
An opening 5 is provided on the lower surface.

A lighting switch (not shown) and the like are attached to the stand 2.

The cylindrical portion 3 has an inner diameter that is approximately the same as the outer diameter of the socket cover 6, and its length is shorter than the length of the socket cover 6.

The socket cover 6 has an inner diameter larger than the outer diameter of the light bulb socket 7, and a threaded portion 8 is formed on the outer periphery of its upper end.

A pair of diametrically opposed grooves are formed on the lower outer periphery of the socket cover 6, and a screw hole 11 is provided in the lower part of one of the grooves 9.

The flat socket fixing fitting 10, which is inserted in the diameter direction of the socket cover 6 along this groove, consists of a flat plate part with a length longer than the outer diameter of the socket cover 6, and has a U-shaped shape added to one end. Fixing piece 12 with the cut portion bent downward
has.

A fitting hole 13a and a screw hole 13b are formed in the center of the socket fixing fitting 10, and a screw hole 2 is formed in the fixing piece 12.
2 is provided.

The light bulb socket 7 has a cylindrical shape, has an electrode part (not shown) inside, and has the above-mentioned fitting hole 13a in the lower part.
It has a positioning protrusion (not shown) and a screw hole (not shown) provided at the same distance as the distance between the screw hole 13b and the screw hole 13b.

Also, the power cord 1 connected to the electrode part of the light bulb socket 7
5 extends from the bottom of the light bulb socket 7.

Further, the electrode portion of the light bulb socket 7 has a screw-shaped engaging inner surface that engages with the screw-shaped electrode portion of the incandescent bulb 14 for conduction.

The shade support fitting 16 includes a ring-shaped fixing part 17 in which a threaded part 18 that engages with the threaded part 8 is formed inside, and a ring-shaped fixing part 17.
Four supporting metal fittings 1 are erected around the same distance apart from each other.
9, and a ring member 20 connected to the upper end of each support fitting 19.
It consists of.

The ring member 20 has a larger diameter than the fixed portion 17 and supports the upper edge of the shade 21 forming a truncated conical side surface.

The incandescent bulb stand constructed as described above is assembled as follows.

Insert the socket fixing fitting 1 into the aforementioned groove of the socket cover 6.
Insert 0.

In the inserted state, the socket fixing fitting 10 is screwed to the socket cover 6 by inserting it into the screw 23 that engages with the screw hole 11 through the screw hole 22 provided in the fixing piece 12.

With the socket fixing fitting 10 screwed, the light bulb socket 7 is inserted from above the socket cover 6.

Attach the positioning protrusion of the light bulb socket 7 to the socket fixing bracket 1
0 fitting hole 13a to position it, and screw hole 13b.
The light bulb socket 7 is fixed to the socket cover 6 via the socket fixing fitting 10 by inserting a screw into the screw hole of the light bulb socket 17 facing the .

With the light bulb socket 7 attached to the socket cover 6 in this manner, the socket cover 6 is inserted into the hollow part of the cylindrical part 3 through the opening 5 of the stand main body 1.

With the threaded part of the socket cover 6 protruding from the cylindrical part 3, the threaded part 18 of the fixing part 17 of the shade support fitting 16 is engaged with the threaded part 8 from above the stand main body 1.

The threaded portion 8 and the threaded portion 18 are engaged until the lower surface of the fixing portion 17 contacts the upper end surface of the cylindrical member 3.

As the fixing part 17 is rotated, a state is obtained in which the upper surfaces of both ends of the socket fixing fitting 10 protruding from the socket cover are pressed against the back side of the flat part of the base part 2.

In this state, the light bulb socket 7 attached to the socket cover 6 is fixed to the stand main body 1, and the support fitting 16 is fixed to the stand main body 1 by the engagement of the threaded parts 18 with the threaded parts 18.

Then, the incandescent bulb 14 is inserted from above the shade 21 and attached to the bulb socket 7, completing the stand assembly.

As described above, by engaging the screw portions 8 and 18 with the electrode socket 7 attached to the socket cover 6, the electrode socket 7 and the shade support fitting 16 are attached to the stand body 1 through the socket cover 6. can be attached to.

Therefore, these can be attached above the stand main body 1, making the assembly work very simple and improving the workability.

Even if there is a slight dimensional error in the height of the cylindrical part 3, assembly can be accomplished simply by adjusting the state of engagement between the threaded part 8 and the threaded part 18.

Particularly, when the stand body is formed of materials such as ceramics and cast iron, which often have large variations in molding dimensions, reliable attachment can be performed without being affected by the dimensional difference of the cylindrical portion 3.

As described above, according to this invention, the socket cover is stored in the cylindrical part of the stand body with the electrode socket attached to the socket cover, and the threaded part of the socket cover and the threaded part of the shade support fitting are connected. Since the electrode socket and the shade support fitting can be fixed to the stand main body by fitting them together, the attachment work can be easily performed outside the stand main body, which has the advantage of improving workability.

Moreover, since the socket fixing metal fitting is crimped onto the stand main body by engagement of the threaded portion, there is an advantage that parts such as parts for preventing rotation of the light bulb socket are not required.

[Brief explanation of drawings]

FIG. 1 is a partial sectional view of an incandescent bulb stand which is an embodiment of this invention, and FIG. 2 is an exploded perspective view of the same incandescent bulb stand. 1...Stand body, 3...Cylindrical part,
6... Socket cover, 7... Light bulb socket, screw part (of socket cover 6), 10...
Bracket/socket fixing metal fittings, 14...Incandescent bulb, 16
......Sade support fitting, 17...Fixing part (of shade support fitting 16), 18...Threaded part (of fixing part 17), 21... Sade.

Claims (1)

[Scope of utility model registration request] In an incandescent bulb stand, a shade that covers the incandescent bulb is supported above the stand main body by a shade support fitting that is fixed near the light bulb socket and has a support member that faces upward from the fixing point. A threaded portion is formed on the outer periphery of the upper end of the socket cover to be stored and fixed, and a socket fixing fitting is attached to the lower part of the socket cover in the form of a flat plate that is longer than the diameter of the cover, and the threaded portion of the socket cover is attached to the shade support fitting. A threaded portion for engagement is formed, and a socket cover housing cylindrical portion having an inner diameter approximately the same as the outer shape of the socket cover is formed protruding from the upper part of the stand main body, and the socket cover is attached to the socket fixing metal fitting. The incandescent bulb stand is characterized in that the stand is housed in the cylindrical portion from below the stand body in the attached state, and the threaded portion of the shade support fitting is engaged and fixed to the threaded portion of the socket cover.