JPH023202Y2 - - Google Patents

Description

[Detailed explanation of the idea] (b) Industrial application fields The present invention relates to a headlamp used for bicycles, etc.

(b) Prior Art Conventionally, as shown in Fig. 7, the tip of the lead wire 15 was inserted into the socket 8 and the light bulb 9 was inserted and fixed by rotation. Line 15 rotates and twists simultaneously with this rotation,
This has the disadvantage that the lead wire 15 may be damaged or disconnected.

(c) Problems to be solved by the invention Therefore, the object of the invention is to provide a headlamp in which the lead wire does not twist even when the light bulb is rotated and inserted into the socket.

(d) Means for Solving Problems The present invention has a structure including a case with an opening at the front, a lens cover that covers the front opening, and a lens cover that is formed approximately in the center of the inner wall of the case and that rotates the light bulb. The holding portion is formed of an insertion tube that engages a socket to be inserted and held, and a lead wire whose tip portion is interposed between the light bulb and the socket, and that press-fits and engages the lead wire into the outer wall of the socket. At the same time, locking pins for locking the lead wires are provided on the upper and lower surfaces of the holding portion, respectively.

(E) Effect When the light bulb is rotated and inserted into the socket, the lead wire is locked by the locking pin, so the lead wire does not rotate with the light bulb and break.

(f) Embodiment 1 is a case with an opening at the front, and the front opening is covered with a lens cover 2. A reflecting plate 4 having a through hole 3 in the center is attached to the lens cover 2. A cylindrical insertion tube 5 is integrally formed approximately at the center of the inner wall of the case 1 to project therefrom. A notch 6 is formed in the side wall of the insertion tube 5 in the vertical direction, and a plurality of locking portions 7 are formed in the upper part of the inner wall. Reference numeral 8 denotes a cylindrical socket made of synthetic resin with upper and lower openings, and has an outer diameter to be press-fitted into the insertion tube 5, and has a threaded portion 9a of the light bulb 9 on its inner wall.
a positioning part 11 that forms a screw receiving part 10 that engages the light bulb 9 and positions the bottom of the light bulb 9;
is formed. The outer wall of this socket 8 is provided with a holding portion 13 that is inserted into and engaged with the notch portion 6.
is formed protrudingly, and an opening 14 is formed below it. Moreover, the lead wire 1 is attached to the holding portion 13.
A press-fitting groove 16 for press-fitting and holding 5 is formed. 1
Reference numeral 7 designates a grounding lead plate inserted through the notch 6 and opening 14 and connected to the rear end of the light bulb 9. An upper locking pin 22 is erected on the upper surface of the holding portion 13 and in the rotational direction of tightening the light bulb 9 with respect to the press-fitting groove 16, and a lower locking pin 23 is suspended at an appropriate position on the lower surface. With such a configuration, the socket 8 is prevented from slipping upward from the insertion tube 5 by the locking part 7, and rotation of the socket 8 is prevented by the engagement between the holding part 13 and the notch part 6, and its Even if the upper lead wire 15 is locked as shown in FIG. 1 or 3 and the light bulb 9 is rotated and inserted into the socket 8, the lead wire 15 is prevented from moving by the upper and lower locking pins 22 and 23. This eliminates disconnection and damage of the lead wire 15 due to twisting.

(g) Effects of the invention Since the invention is constructed as described above,
The holding part that holds the lead wire can prevent the socket from rotating, and the locking pin can prevent the lead wire from being disconnected or damaged when the light bulb is rotated and inserted into the socket.

[Brief explanation of the drawing]

Fig. 1 is an exploded perspective view of the headlamp of the present invention, Fig. 2 is a sectional view thereof, Fig. 3 is a perspective view showing the engaged state of the light bulb and the socket, Fig. 4 is a perspective view of the socket, and Fig. 5 is a perspective view of the headlamp of the present invention.
4 is a plan view of FIG. 4, FIG. 6 is a side view of the same, and FIG. 7 is a perspective view showing the state of engagement between a conventional light bulb and a socket. 8...Socket, 9...Light bulb, 13...Holding part, 6...Notch part, 22, 23...Lock pin.

Claims (1)

[Scope of utility model registration request] A case with a front opening, a lens cover that covers the front opening, an insertion tube that is formed approximately in the center of an inner wall of the case and that engages a socket that rotates and holds a light bulb, and the light bulb and the socket. and a lead wire with its tip interposed between the socket and the socket, forming a holding part for press-fitting the lead wire into the outer wall of the socket, and a locking part for locking the lead wire on the upper and lower surfaces of the holding part. A headlamp characterized by protruding stop pins.