JPS6312550Y2 - - Google Patents

Description

Detailed Description of the Invention This invention relates to a socket fixing structure in a lighting fixture, which enables a cylindrical socket to be easily fixed to the fixture frame.

For example, when fixing a glow socket to the fixture frame of a lighting fixture, conventionally a nut 2 is fixed to a cylindrical glow socket 1 as shown in FIG. It was fixed. Therefore, a tool such as a screwdriver must be used for fixing, which is very troublesome.

The present invention solves the above problems and is characterized by a socket fixing structure for fixing the cylindrical socket 5 to the instrument frame 10. A mounting portion 8 is provided on the mounting portion 8 , and a protrusion 9 having a width smaller than that of the mounting portion 8 is provided to protrude outward in the radial direction of the socket 5 .
3 is provided with an open plate-shaped horizontal portion 11, and a socket receiving plate 16 facing the socket insertion hole 13 is provided below the horizontal portion 11 so as to form a socket storage space 19 between the socket receiving plate 16 and the instrument frame 10. established in
A fitting hole 20 having a width smaller than the mounting portion 8 is provided in the socket receiving plate 16 so as to removably fit into the protrusion 9 of the socket 5.
0, insert the insertion hole 13 from the side edge of the socket insertion hole 13.
A plate-shaped elastic locking piece 14 that slopes downward inward.
The protruding length of the elastic locking piece 14 is such that the opening width a of the socket insertion hole 13 is narrower than the left and right widths b and c of the socket 5, and the protruding end of the elastic locking piece 14 is connected to the protrusion 9. The length is such that it comes into contact with the outer circumferential upper surface of the socket 5 so as to maintain the fitting into the fitting hole 20, and the elastic locking piece 14 allows insertion and removal from the socket insertion hole 13 into the socket storage space 19. The main point is that it can be elastically deformed in the vertical direction.

Hereinafter, the present invention will be explained according to the illustrated embodiment. In FIGS. 2 to 4, reference numeral 5 denotes a cylindrical glow socket, into which a glow lamp 6 is screwed so as to project forward. A mounting portion 8 having a flat surface 7 over the entire length of the socket 5 is formed on a part of the outer periphery of the socket 5 in the circumferential direction.
A rectangular parallelepiped-shaped protrusion 9 is provided protrudingly on. The mounting portion 8 has both ends thereof in the width direction protruding outward relative to the projection 9. Reference numeral 10 denotes an instrument frame formed of a resilient metal plate or the like, which includes a horizontal portion 11;
It is formed into an L-shape with a bent portion 12 bent downward from the front end of the holder. Reference numeral 13 denotes a socket insertion hole, which is formed by opening the horizontal portion 11 in a rectangular shape from its front end toward the rear, with a pair of left and right elastic locking pieces 14 remaining. Reference numeral 15 denotes a glow insertion hole, which is opened in a rectangular shape so as to be continuous with the socket insertion hole 13 from the upper end of the bent portion 12 to the lower end. 1
6 is a socket receiving plate provided on the instrument frame 10;
A cutout piece 16' that forms a continuous hole from the glow insertion hole 15 to the elastic locking piece 14 of the socket insertion hole 13.
This is what was used. That is, as shown in FIG.
A notch piece 16' inside this notch 17 is bent horizontally so as to protrude from the lower end of the bent portion 12 (dotted line 18) below the socket insertion hole 13. A socket storage space 19 is formed between the receiving plate 16 and the instrument frame 10,
A socket 5 is housed in a socket housing space 19 with a glow lamp 6 protruding forward from the glow insertion hole 15. Reference numeral 20 denotes a fitting hole opened in the receiving plate 16, into which the protrusion 9 of the socket 5 is removably fitted from above, and both widthwise ends of the mounting portion 8 are fitted into the fitting hole 20 of the receiving plate 16. It abuts on the edge. The elastic locking pieces 14 protrude from the left and right side edges of the socket insertion hole 13 so as to be inclined downwardly toward the inside of the insertion hole 13, and the opening width of the socket insertion hole 13, that is, the separation width a between the two locking pieces 14 is equal to the width of the socket. 5, the locking piece 14 is elastically deformable downward so as to allow insertion from the socket insertion hole 13 of the socket 5. Also, both locking pieces 14
The protruding end of contacts the outer periphery of the socket 5 from above,
The socket 5 is held between the socket receiving plate 16 so that the projection 9 fits into the fitting hole 20.

According to the configuration of the above embodiment, in order to fix the socket 5 to the frame 10, the socket 5 is inserted into the socket storage space 19 through the socket insertion hole 13 with the glow lamp 6 facing forward and the protrusion 9 facing downward. It is only necessary to insert the socket 5 into the fitting hole 20 and fit the protrusion 9 into the fitting hole 20. When the socket 5 is inserted, the locking piece 14 is elastically deformed downward as shown by the chain line, and the socket 5 is easily stored in the socket storage space 19. After that, the locking piece 14 returns to its original position as shown by the solid line due to elastic force, and the socket 5 becomes unable to rotate and move back and forth and left and right due to the fitting of the protrusion 9 into the fitting hole 20, and is locked. Due to the abutment of the piece 14, the socket 5 is locked so that it cannot move upwardly, and the socket 5 can be securely held fixed between the socket receiving plate 16 and the locking piece 14.

6 to 8 show another embodiment, in which a horizontal plate-shaped instrument frame 10 is attached to one elastic locking piece 1.
A socket insertion hole 13 is formed by cutting out a substantially U-shape from the front end of the socket 4 with the hole 4 remaining. The socket receiving plate 16 is formed separately from the instrument frame 10, and includes a mounting portion 21 that is superimposed and fixed to the lower surface of the instrument frame 10 by welding or the like on the left side of the socket insertion hole 13, and a left side edge of the insertion hole 13 at the right end of the mounting portion 21. The hanging part 22 bent downward from the hanging part 22
It has a horizontal portion 23 bent horizontally so as to protrude below the socket insertion hole 13 from the lower end, and forms a socket storage space 19 between it and the instrument frame 10. A socket 5 is housed in this socket housing space 19 with a glow lamp 6 protruding forward. A fitting hole 20 is opened in the hanging part 22, the protrusion 9 of the socket 5 is removably fitted into the fitting hole 20, and both widthwise ends of the mounting part 8 are connected to the hanging part 2.
The outer periphery of the socket 5 is in contact with the horizontal portion 23. Elastic locking piece 1
4 is the insertion hole 13 from the right edge of the socket insertion hole 13.
Although the opening width of the socket insertion hole 13, that is, the separation width c from the hanging portion 22 is smaller than the left-right width d of the socket 5, the locking piece 14 It is elastically deformable as shown by the chain line to allow insertion. Further, the protruding end of the locking piece 14 contacts the outer periphery of the socket 5 from the upper right side,
Insert the socket 5 so that the protrusion 9 fits into the fitting hole 20.
is held between it and the socket receiving plate 16. Therefore, in order to fix the socket 5 to the instrument frame 10, it is sufficient to insert the socket 5 through the socket insertion hole 13 and fit the protrusion 9 into the fitting hole 20. Can be fixed securely with one touch.

Note that FIGS. 9 and 10 show modifications of FIGS. 2 to 4, in which a rectangular parallelepiped-shaped protrusion 9 is provided directly protruding from the rear end of the outer periphery of the socket 5, and the front part of the outer periphery of the socket 5 is It is made to come into direct contact with the receiving plate 16, and this is used as the mounting part 8. Further, FIG. 11 shows a modification of FIGS. 6 to 8, in which the protrusion 9 is provided directly on the rear end of the outer periphery of the socket 5 as in the case of FIGS. 9 and 10, and the protrusion 9 is fitted. Fitting hole 20
is provided in the horizontal portion 23.

According to the present invention, the instrument frame 10 includes a plate-shaped horizontal section 11, and the socket receiving plate 16 is provided below the horizontal section 11 to form a socket storage space 19. A plate-shaped elastic locking piece 14 is provided that projects downward from the side edge of the hole 13 toward the inside of the insertion hole 13, and the protruding length of the elastic locking piece 14 is equal to the opening width a of the socket insertion hole 13. The width is smaller than the left and right widths b and c of the socket 5, and the length is such that the protruding end of the elastic locking piece 14 comes into contact with the upper surface of the outer periphery of the socket 5 so as to maintain the fitting of the projection 9 into the fitting hole 20. and elastic locking piece 1
4 is elastically deformable in the vertical direction so that it can be inserted into and removed from the socket storage space 19 through the socket insertion hole 13, so that it can be inserted into the instrument frame 10 through the socket insertion hole 13 and the protrusion 9 fitted. Hole 2
0, and the socket 5 can be fixed with one touch. Further, by fitting the protrusion 9 into the fitting hole 20, rotation and movement of the socket 5 can be restricted. Moreover, even though the opening width a is smaller than the left and right widths b and c, the socket 5 cannot be simply forced into the socket insertion hole 13 due to the downward elastic deformation of the elastic locking piece 14. As a result, the elastic locking piece 14 can be elastically deformed downward, and the socket 5 can be easily inserted into the socket storage space 19.
Also from this point of view, the socket 5 can be fixed very easily. Further, after the socket 5 is inserted into the socket storage space 19, the elastic locking piece 14 locks the socket 5 into the socket storage space 19.
can be elastically pressed against the receiving plate 16, and the socket 5 can be firmly fixed without fear of wobbling.
In addition, the elastic locking piece 14 has the function of pressing the socket 5 against the receiving plate 16 so that it does not come out from the socket insertion hole 13, and the function of pressing the protrusion 9 of the socket 5 so that it does not come out from the fitting hole 20. Although the socket 5 can be firmly fixed, the structure is very simple. Furthermore, since the horizontal portion 11, the socket receiving plate 16, and the elastic locking piece 14 are plate-shaped,
These can be formed very easily by cutting or bending a metal plate, and for example, the socket receiving plate 16 and the elastic locking piece 14 can be formed by cutting and bending when forming the socket insertion hole 13 in the horizontal part 11. The structure can be easily constructed, the constituent materials can be easily held together, each member can be easily constructed, and it can be easily manufactured and provided at low cost. Moreover, when the socket 5 is fixed, the socket 5 is stored in the socket storage space 19,
Since the socket 5 is surrounded and protected by the instrument frame 10 and the socket receiving plate 16, there is no risk of the socket 5 being hit by an object from the outside and being damaged.

[Brief explanation of the drawing]

FIG. 1 is a side sectional view showing a conventional example, FIG. 2 is a plan view showing an embodiment of the present invention, and FIG. 3 is a front view of the same.
FIG. 4 is a sectional view of the same side, FIG. 5 is a perspective view of the instrument frame before forming the socket receiving plate, FIG. 6 is a plan view showing another embodiment, and FIG. 7 is a front sectional view of the same. Fig. 8 is a sectional view of the same side, Fig. 9 is a front view showing a modification of Figs. 2 to 4, Fig. 10 is a sectional view of the same side, and Fig. 11 is a modification of Figs. 6 to 8. It is a front sectional view showing an example. 5...Glow socket, 9...Protrusion, 10...
Instrument frame, 13...Socket insertion hole, 14...
...Elastic locking piece, 16...Socket receiving plate, 20...
Fitting hole.

Claims (1)

[Claims for Utility Model Registration] In a socket fixing structure for fixing a cylindrical socket 5 to an instrument frame 10, a mounting portion 8 is provided on a part of the outer periphery of the socket 5 in the circumferential direction. A protrusion 9 having a smaller width than the placing part 8 is provided on the placing part 8 so as to protrude outward in the radial direction of the socket 5, and the instrument frame 10 is provided with a projection 9 having a width smaller than that of the placing part 8.
3 is provided with an open plate-shaped horizontal portion 11, and a socket receiving plate 16 facing the socket insertion hole 13 is provided below the horizontal portion 11 so as to form a socket storage space 19 between the socket receiving plate 16 and the instrument frame 10. established in
A fitting hole 20 having a width smaller than the mounting portion 8 is provided in the socket receiving plate 16 so as to removably fit into the protrusion 9 of the socket 5.
0, insert the insertion hole 13 from the side edge of the socket insertion hole 13.
A plate-shaped elastic locking piece 14 that slopes downward inward.
The protruding length of the elastic locking piece 14 is such that the opening width a of the socket insertion hole 13 is narrower than the left and right widths b and c of the socket 5, and the protruding end of the elastic locking piece 14 is connected to the protrusion 9. The length is such that it comes into contact with the outer circumferential upper surface of the socket 5 so as to maintain the fitting into the fitting hole 20, and the elastic locking piece 14 allows insertion and removal from the socket insertion hole 13 into the socket storage space 19. A socket fixing structure characterized by being elastically deformable in the vertical direction as shown in FIG.