JPS6337681Y2 - - Google Patents

Description

[Detailed description of the invention] In this invention, the case that constitutes the headlight consists of a front part equipped with a light bulb and a reflector, and a back part equipped with a mounting plate, and by combining the two,
The present invention relates to a bicycle headlight constructed such that two contact pieces provided on the inner surface of the rear surface are respectively connected to the light bulbs on the rear surface of the front surface.

Conventional headlights of this type have a pair of left and right seat plates that expand along the inner surface of the back, and a metal fitting with a T-shaped cross section that forms a mounting plate for the headlight at the outer end that protrudes through the back. The metal fitting and the contact piece are fixed by a caulking pin that fits from the inside of the back part and passes through the pair of left and right seat plates and the back part with one contact piece that is connected to the light bulb interposed therebetween. While forming the ground, a screw insertion hole is formed on the side of the back part, the other contact piece to be connected to the light bulb is hooked to the inner end of the screw inserted through the hole, and a lead wire is attached to the outer end. Since it was configured to be adhesively bonded, there was a drawback that it required a lot of work to connect the lead wires and to connect the contact piece to the back surface part.

Therefore, in the present invention, one contact piece is fixed to one seat plate of the metal fitting having a T-shaped cross section in the same way as before, and an insulating plate is interposed between it and the back surface of the other seat plate, so that the tip is L-shaped. The other expanding contact piece is overlapped, and an insulating cylindrical part protruding from the inner surface of the back part is formed so as to surround the outer periphery of the other caulking pin that fixes this contact piece and the above-mentioned insulating plate, and the above-mentioned caulking One tip of this contact piece, which is fixed by a pin, is configured to be connected to the light bulb, and the other tip of the contact piece is fitted into a latching hole penetrating the side of the back part to connect the head. By configuring the relay plate to be in pressure contact with the relay plate protruding from the inner surface of the back surface and pressurizing the relay plate in a direction to push the relay plate out of the device, the above-mentioned drawbacks of the conventional method can be eliminated and the manufacturing process improved. This provides a bicycle headlight that is easy to use.

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

In the figure, A is a front part of a case that includes a light bulb 1 and a reflector plate 2, and B is a back part that fits at the edge with the back of this front part A, both of which are molded synthetic resin products.
Reference numeral 3 denotes a metal fitting having a T-shaped cross section that fits through the back surface part B, 3a and 3b represent a pair of left and right seat plates of the same metal fitting 3 that expand along the inner surface of the back surface part B, and 3c represents a metal fitting 3 on the back surface B.
This is a mounting plate for the metal fitting 3 that protrudes from the outside. Reference numeral 4a designates one contact piece which is superimposed on the back surface of one of the seat plates 3a and is fixed by one of the caulking pins 5a passing through the seat plate 3a and the back surface part B. This contact piece 4a is attached to the front surface part A. The tip 1 of the light bulb 1 protruding from the back side of
Crimp and connect with a. Reference numeral 4b designates the other contact piece having an L-shaped tip, superimposed on the insulating plate 6 on the back surface of the other seat plate 3b, and similarly fixed to the back surface B by the other caulking pin 5b. One tip 4'b of this contact piece 4b is crimped and connected to the electrode plate 1b forming the other terminal of the light bulb 1,
The other tip 4''b covers a latching hole 7 extending through the side of the back part B, and the head 8' is latched to the rim of the hole 7 and inserted, as shown in FIG. Relay plate 8
It is in pressure contact with. By pushing up the lower end of the relay plate 8 that protrudes outside the vessel against the tip 4''b, the horizontal hole 9a formed in the plate 8 is inserted into the latching hole 7.
It is configured such that wire connection can be easily performed by inserting the ends of the lead wires L with their coatings peeled off into the horizontal holes 9b and 9a, and then releasing the push-up. The contact piece 4
As shown in FIG. 3, the caulking pin 5b that fixes the contact piece 4b and the metal fitting 3 are connected by inserting the insulating cylindrical part 10 that integrally projects from the inner surface of the back part B. They are electrically insulated, the contact piece 4a and the metal fitting 3 are electrically conductive, and the mounting plate 3c also serves as a ground. Note that the contact piece 4b has another tip, and as shown in FIG. and a latching protrusion 11a integrally formed on the edge of the front part A corresponding to the same piece 11b.
and elastically fit together. Further, the other edge of the case is held in place by a pair of protrusions 12a formed on the front part A and a pair of window holes 12 formed on the back part B. Reference numeral 13 denotes a holder for a spare light bulb 14 integrally molded on the other side of the back part B, and has a protrusion at the center of each inner arc surface of the four vertically divided pieces to elastically tighten the thread of the light bulb 14. It is configured so that it can be firmly clamped and fitted linearly when inserted, but can be easily removed by rotating in the direction in which the screw loosens.

As mentioned above, the present invention provides one seat plate 3 of the headlight mounting bracket, that is, the bracket 3 having a T-shaped cross section.
One contact piece 4a is caulked to the other seat plate 3b, and the other contact piece 4b whose tip is expanded in an L-shape is caulked to the other seat plate 3b in an electrically insulated state, and one tip of the contact piece 4b is caulked to the seat plate 3b. 4''b is configured to press into contact with the relay plate 8 that fits into the hooking hole 7 penetrated through the side of the back part B, compared to the conventional case where the contact pieces were fixed individually. The mounting bracket can be fixed to the back surface and the two contact pieces can be fixed at the same time, reducing the number of man-hours required for assembling the headlight.
In addition, the connection operation with the lead wire becomes easier and costs can be reduced.

[Brief explanation of the drawing]

The drawings show an embodiment of the present invention, and FIG. 1 is an exploded perspective view of the front and back parts, and FIG.
The figure is a plan view of the back part of the same as above, and Figure 3 is the X of Figure 2.
It is a partially cutaway enlarged sectional view taken along the line -X'. A...Front part, 1...Light bulb, 1a...Tip, 1
b...Pole plate, 2...Reflector, B...Back part, 3...
...Metal fittings, 3a, 3b...Seat plate, 3c...Mounting plate,
4a, 4b... contact piece, 4'b, 4''b... tip, 5
a, 5b... crimping pin, 6... insulation plate, 7...
Latching hole, 8... Relay plate, 8'... Head, 9a,
9b...Horizontal hole, L...Lead wire, 10...Insulating cylindrical portion, 11a...Latching protrusion, 11b...Elastic latch piece, 12a...Protrusion, 12b...Window hole, 13...
Holder, 14... Spare light bulb.

Claims (1)

[Scope of utility model registration request] A back part B that fits into a front part A that includes a light bulb 1 and a reflector 2 has a pair of left and right seat plates 3a and 3b that expand along the inner surface of the back part B, and the same back part B. Mounting plate 3 of the headlight on the outer end protruding through it
A metal fitting 3 having a T-shaped cross section forming a T-shaped cross section is fitted, and one contact piece 4a connected to the light bulb 1 is superimposed on one of the seat plates 3a of the metal fitting 3, and a caulking pin 5a is fitted.
The mounting plate 3c is also used as a ground by fixing the mounting plate 3c, while the other contact piece 4b whose tip expands into an L-shape is overlapped with an insulator 6 interposed between it and the back surface of the other seat plate 3. Align and this contact piece 4
b and the other caulking pin 5 that fixes the insulating plate 6
An insulating cylindrical part 10 is formed on the inner surface of the back surface part B so as to surround the outer periphery of the contact piece 4b, and one tip 4'b of this contact piece 4b is fixed by the caulking pin 5b.
is configured to be connected to the light bulb 1,
The other tip 4''b is fitted into a latching hole 7 extending through the side of the back part B, and the head 8' is pressed against the relay plate 9 which protrudes from the inner surface of the back part B. A bicycle headlight characterized in that the relay plate 8 is configured to be pressurized in a direction to push it out of the device.