JPH0336052Y2 - - Google Patents

Description

[Detailed Description of the Invention] [Technical Field] This invention relates to a mounting structure for a socket for mounting a lamp such as a fluorescent lamp.

[Background technology]

A conventional example is shown in FIG. 9 and FIG. 10. In the figure, 100 is a socket base attached to a reflector (not shown) of a lighting fixture. Further, 112 is a socket housing that is fixed to the mounting surface of the socket base 100 with a fixing device (not shown) such as a screw.
Furthermore, 114 is a socket that is held by the socket housing 112 by inserting a groove portion 115 into a lip portion 116 of the socket housing 112. Note that a cut and raised piece 118 is formed on the lip portion 116. Further, on the outer surface of the socket housing 112, a projection 122 is formed by pressure molding.
is provided. Furthermore, a cylindrical socket cover 120 is fitted onto the socket housing 112.

However, according to the socket mounting structure constructed in this manner, the socket 114 is prevented from coming off only by the cut and raised piece 118 provided on the lip portion 116 of the socket housing 112, so that the socket 114 is It came off very easily.

Also, when attaching the socket housing 112 to the socket base 100, the socket housing 11
2 could not be positioned, making assembly work difficult.

[Purpose of invention]

The object of this invention is to provide a socket mounting structure that can reliably prevent the socket from coming off, and also allows for positioning when installing the socket housing and facilitates assembly work.

[Disclosure of invention]

The socket mounting structure of this invention includes a socket base having a protrusion and a screw hole on the mounting surface, and a protrusion through which the protrusion penetrates at a position corresponding to the protrusion when the socket is mounted on the mounting surface. A socket housing having a hole and a screw insertion hole at a position corresponding to the screw hole, and the protrusion fitting into the position corresponding to the protrusion through hole when the socket housing is held in the socket housing. The socket has a recess into which a protrusion is fitted, and a mounting screw is inserted into the screw insertion hole and fastened to the screw hole.

According to the configuration of this invention, there are the following effects.
That is, the protrusion provided on the socket base passes through the protrusion through hole of the socket housing and fits into the protrusion fitting recess of the socket. In this way, since the protrusion fits into the protrusion fitting recess, the socket can be reliably prevented from coming off. Further, since the socket housing is positioned by passing the protrusion through the protrusion through hole and the socket housing is attached to the socket base using the mounting screws, assembly work can be easily performed.

Embodiment An embodiment of this invention will be described based on FIGS. 1 to 8. That is, the mounting structure of the socket of this embodiment has a mounting surface 22 (see FIG. 3).
A socket base 1 having a protrusion 24 and a screw hole 26 on the
0 (see FIG. 2), and a protrusion through hole 4 through which the protrusion 24 passes through at a position corresponding to the protrusion 24 in the attached state attached to the attachment surface 22.
4 and a screw insertion hole 46 at a position corresponding to the screw hole 26;
and a socket 60 having a protrusion fitting recess 62 into which the protrusion 24 fits in a position corresponding to the protrusion through hole 44 in the held state held by the socket housing 36, and the screw insertion hole 4.
6 and fastened to the screw hole 26.

As shown in FIG. 2, the socket base 10 includes a cylindrical wire insertion portion 12 through which the wire is passed, and a device body attachment portion 14 integrally provided at both ends of the wire insertion portion 12.
and a socket housing mounting portion 16. A spring pressing protrusion 20 that is pressed by an attachment spring is formed on the outer surface of the rectangular tube-shaped insertion section 18 of the instrument body mounting section 14 . FIG. 3 is a view taken along arrow A in FIG. In the figure, 22 is a mounting surface of the socket housing mounting portion 16.
A protrusion 24 is provided at one end of the mounting surface 22 in a protruding manner. Furthermore, a screw hole member 28 having a screw hole 26 in the center is provided at the other end of the mounting surface 22. 30 is a hole opened in the wire insertion portion 12. Note that the outer surface 32 of the socket housing mounting portion 16 on the wire insertion portion 12 side is connected to the socket cover 7.
4 (see FIG. 4). In addition, the socket housing mounting part 1
A curved recess 34 is formed at the end of the mounting surface 22 of No. 6.

As shown in FIG. 1, the socket housing 36 is provided with a wire insertion opening 40 in the center of the socket base mounting surface 37, and a wire insertion opening 40 is provided on each side of the opening 40 for fitting into the recess 34 of the socket housing mounting portion 16. A curved convex portion 38 and a concave curved portion 42 are formed. The convex portion 38 has a protrusion through hole 44 formed at a position corresponding to the protrusion 24 of the socket housing mounting portion 16 when it is attached to the socket base 10, and the concave curved portion 42 has a socket through hole 44 formed therein. A screw insertion hole 46 is formed at a position corresponding to the screw hole 26 of the housing mounting portion 16. Furthermore, socket cover pressure contact protrusions 52 are press-molded outward at the four corners of the outer surface of the curved socket holding parts 48 and 50 of the socket housing 36, and socket contact cut and raised pieces 54 are cut and raised. It is formed. Furthermore, the socket holding part 50
A socket cover holding spring 55 is formed in the socket. Furthermore, lip portions 56 and 58 are bent at the edges of the socket holding portions 48 and 50.

When the socket 60 is attached to the socket housing 36, the socket 60 is inserted into the socket 60 at a position corresponding to the projection through hole 44 of the socket housing 36.
A groove-shaped protrusion fitting recess 6 opens on the end surface 64 of 0.
It has 2. A notch 66 into which the recessed portion 42 of the socket housing 36 fits is formed at the other end of the socket 60.
A groove portion 68 extending in the longitudinal direction on the outer peripheral surface of the socket housing 36 into which the lip portions 56 and 58 of the socket housing 36 are fitted.
is formed. Incidentally, 70 is a plug holder to which a lamp is attached.

Next, the procedure for attaching the socket 60 will be explained. First, the lip parts 56 and 58 are fitted into the groove part 68, and the socket 60 is attached to the socket housing 3.
Insert into 6. The rear end of the socket 60 abuts the socket abutting cut-and-raise piece 54, and the recessed portion 42 fits into the notch 66, so that the socket 60 is positioned and held by the socket housing 36.
Next, the protrusion 24 is penetrated into the protrusion through hole 44,
The socket housing 36 is then fitted into the protrusion fitting recess 62 to attach the socket housing 36 to the socket base 10. At this time, the convex portion 38 of the socket housing 36 fits into the concave portion 34 of the socket housing mounting portion 16. Furthermore, the mounting screw 72 is inserted into the screw insertion hole 46 from inside the socket housing 36 and fastened to the screw hole 26. In this way, the socket base 10, the socket housing 36, and the socket 6
0 installation.

Further, the socket housing 36 and the socket housing mounting portion 16 are covered with a socket cover 74 shown in FIG. The socket cover 74 has a cylindrical shape and has a notch 76 at one end. The socket cover 74 is externally fitted onto the socket housing 36 and the socket housing mounting portion 16 from the plug receiver 70 side of the socket 60 with the notch 76 facing forward. Then, the wire insertion part 12 of the socket base 10 fits into the notch 76 and comes into contact with the inner surface of the notch 76, thereby positioning the socket cover 74. Then, cover the opening end of the socket cover 74 on the notch 76 side with a lid 78 (see FIG. 4).
Close the lid. FIG. 7 is a sectional view with the socket cover 74 attached.

5 and 6 are a front view and a side view of the socket base 10 attached to the reflector plate 82 of the lighting fixture body 80. To attach the socket base 10, the insertion part 18 is hooked onto a cut-and-raised piece 84 formed in an opening (not shown) of the reflector plate 82, and inserted into the lighting apparatus body 80.
Then, the mounting spring 86 previously attached to the inner surface of the reflection plate 82 presses the spring pressing protrusion 20, and the socket base 10 is mounted. In addition, 88
is a lamp attached to the plug receiver 70 of the socket 60. Further, the electric wire 90 connected to the socket 60
(see FIG. 2) is led out from the wire insertion opening 40 of the socket housing 36, through the wire insertion portion 12 of the socket base 10, and into the lighting fixture main body 80. Then, the connector 92 at the tip of the electric wire 90 is connected to a connection part of a ballast or the like provided inside the lighting fixture main body 80. Note that FIG. 8 is a partial perspective view showing the appearance with the lamp 88 attached.

According to the socket mounting structure configured in this way, the protrusion 24 protrudes from the mounting surface 22 of the socket housing mounting portion 16 of the socket base 10.
However, the protrusion penetrating portion 44 of the socket housing 36
through the protrusion fitting recess 62 of the socket 60.
fit inside. In this way, since the protrusion 24 is fitted into the protrusion fitting recess 62, the socket 60
The socket 60 can be securely prevented from falling off from the socket housing 36.

Further, by passing the protrusion 24 into the protrusion through hole 44, the socket housing 36 can be positioned. In this way, after securely positioning the socket housing 36, tighten the mounting screws 7.
Since the socket housing 36 is attached to the socket housing attachment portion 16 of the socket base 10 in step 2, the assembly work can be easily performed. Incidentally, since the protrusion 38 of the socket housing 36 fits into the recess 34 of the socket housing mounting portion 16 and the socket housing 36 is positioned, the assembly work can be performed even more easily.

Further, since the protrusion 24 penetrates the protrusion through hole 44 and the protrusion fitting recess 62, the protrusion 24 prevents the socket housing 36 and the socket 60 from rotating, and can be securely fixed.

Furthermore, since the outer surface 32 of the socket housing mounting portion 16 is formed along the inner circumferential surface of the socket cover 74, the outer surface 32 of the socket housing mounting portion 16 is formed along the inner circumferential surface of the socket cover 74, as shown in FIG. 32 is in close contact with the inner surface of the socket cover 74. Therefore, the socket cover 74
Shaking can be prevented and the socket cover 74 can be easily positioned in the vertical direction.

Further, the socket abutting cut-and-raised piece 54 of the socket housing 36 is in contact with the end face of the socket 60, and the recessed portion 42 of the socket housing 36 is fitted into the notch 66 of the socket 60. ,
The socket 60 can be positioned when inserted into the socket housing 36, and the socket 60 can be prevented from shifting.

Furthermore, by providing the socket housing mounting portion 16 on the socket base 10 in which the mounting surface 22 contacts the entire surface of the socket base mounting surface 37 of the socket housing 36, the contact area between the socket base 10 and the socket housing 36 is increased. Therefore, the stability of the socket housing 36 in the attached state is improved.

Note that the protrusion fitting recess 6 provided in the socket 60
2 may be a recess into which the protrusion 24 fits, instead of being open in the end surface 64 of the socket 60.

[Effect of idea]

According to the socket mounting structure of this invention, the following effects can be obtained.

The protrusion provided on the socket base passes through the protrusion through hole of the socket housing and fits into the protrusion fitting recess of the socket. In this way, since the protrusion fits into the fitting recess, the socket can be reliably prevented from coming off. Further, since the socket housing is positioned by passing the protrusion through the protrusion through hole and the socket housing is attached to the socket base using the mounting screws, assembly work can be easily performed.

[Brief explanation of the drawing]

Fig. 1 is an exploded perspective view of an embodiment of this invention, Fig. 2 is a perspective view of its socket base, Fig. 3 is a partial perspective view of its socket base, Fig. 4 is a perspective view of its socket cover and lid, and Fig. 5 is a perspective view of its socket base. The figure is a broken sectional view of the installed state, FIG. 6 is a broken sectional view of the installed state, FIG. 7 is a partially omitted sectional view, FIG. 8 is a partially perspective view, and FIG. 9 is a conventional example. The exploded perspective view and FIG. 10 are partially omitted front views. 10...Socket base, 22...Mounting surface, 24
...Protrusion, 26...Screw hole, 36...Socket housing, 44...Protrusion through hole, 46...Screw insertion hole, 60...Socket, 62...Protrusion fitting recess, 72...Mounting screw .

Claims (1)

[Scope of utility model registration request] a socket base having a protrusion and a screw hole on a mounting surface; a protrusion through-hole through which the protrusion penetrates at a position corresponding to the protrusion in the mounted state attached to the mounting surface; A socket housing having a screw insertion hole at a corresponding position, and a socket having a protrusion fitting recess into which the protrusion fits into a position corresponding to the protrusion through hole when the socket is held in the socket housing. and a mounting screw inserted into the screw insertion hole and fastened to the screw hole.