JPH0156481B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION (Industrial Application Field) The present invention relates to a light bulb mounting structure for a hand-powered lamp, and is particularly characterized in that the light bulb is mounted on a battery holding frame.

(Prior Art) A handheld electric lamp is a portable electric light powered by two or several dry cell batteries, and consists of a body, a light source unit, a switch, and others. The unit is equipped with a mirror-shaped reflector and a small light bulb, and the light emitted from the light bulb is converged and radiated forward. By the way, in conventional hand-held lamps, a method is adopted in which a light bulb 31 is attached to a reflector 32, as shown in, for example, Japanese Utility Model Application No. 128391/1983, Japanese Patent Application No. 271141/1982, and FIG. was. Therefore, in the conventional handheld lamp, a support fitting 33 for supporting the light bulb 31 is attached to the reflecting mirror 32, and a socket 34 for fixing the light bulb 31 to the support fitting 33 is required. Therefore, for producers of hand-powered lamps, the number of parts and assembly man-hours are large, which inevitably increases production costs.On the other hand, for users of hand-powered lamps, it is difficult to replace the light bulb 31 with a new one. When replacing the bulb, there were inconveniences such as losing sight of the light bulb 31 and socket 34. Furthermore, the flange 35 of the light bulb 31 and the ground fitting 37 of the battery holding frame 36 are connected via the support fitting 33, which increases the number of contact points, increasing the possibility of poor contact.

(Object of the Invention) The present invention has been made in view of the above-mentioned points, and has a simple structure and easy attachment and detachment of the light bulb.
To provide a hand-powered lamp in which a light bulb and a grounding fitting are securely connected.

(Summary of the Invention) The present invention is characterized by cutting out one or several places on the flange of a light bulb and using these as cutouts, and on the other hand, the battery holding frame is slightly larger than the outside diameter of the base of the light bulb, and the outside diameter of the flange is slightly larger than the outside diameter of the flange. form a mounting tube with a small inner diameter,
The tip of the grounding metal fitting is formed to be slightly smaller than the above-mentioned notch and serves as a locking pawl, and this locking pawl is bent inward at a position slightly protruding from the tip surface of the mounting tube, and this locking pawl is The light bulb is attached to the battery holding frame by inserting a flange between the flange and the end surface of the mounting tube.

(Examples) Hereinafter, the present invention will be specifically described based on illustrated examples.

The figure shows an example in which the present invention is applied to a small handheld lamp that uses four AA batteries. In the figure, 1 is a body, 2 is a light source unit, 3 is a switch,
4 is a battery holding frame. These are basically the same as the conventional ones except that the light bulb 5 is attached to the battery holding frame 4 instead of the light source unit 2. That is,
Body 1 is the main body of the handheld lamp,
Inside, there is a dry battery 6 and a battery holding frame 4 that fixes the dry battery 6 at a predetermined position in the body 1 and forms a part of the current-carrying circuit that connects the dry battery 6 and the light bulb 5.
is loaded. The front side of the body 1 is open, and a light source unit 2 is attached thereto, and a switch 3 for blinking a light bulb 5 is attached at another appropriate location (at the rear end of the handheld lamp shown in the figure). It is being The light source unit 2 is comprised of a mounting frame 7 for mounting it on the body 1, a lens 8, and a mirror-shaped reflecting mirror 9. Each of these members is almost the same as the conventional one, but no support fitting is attached to the center of the reflecting mirror 9, and an insertion hole is formed into which a mounting tube 11, which will be described later, is inserted. Only.

A mounting tube 11 is protruded from the battery holding frame 4 at a position corresponding to the insertion hole of the above-mentioned reflector 9, and a locking claw 13 is provided at the tip of the mounting tube 11. It is adapted to be attached to the battery holding frame 4, more specifically to the attachment tube 11. That is, as shown in the figure, the mounting tube 11 has an inner diameter slightly larger than the base 14 of the light bulb 5 and smaller than the flange 15.
Only part 4 fits into this, and flange 1
5 is adapted to be locked at its distal end surface 16. On the other hand, the locking claw 13 is connected to the distal end surface 16 of the mounting tube 11.
The flange 15 is provided at a slightly protruding position than the tip surface 16 and the locking pawl 13.
It is now possible for people to enter.

Although the figure shows an example in which the mounting tube 11 is formed into a cylindrical shape, it is not limited to this shape. In short, it is sufficient that the tip surface 16 (not necessarily formed in an annular shape) is in a predetermined position and that the flange 15 of the light bulb 5 can be locked thereto.

The light bulb 5 described above has a flange 15 cut out at one or several places to form a notch 17, while the locking pawl 13 is formed slightly smaller than the notch 17 and locks the notch 17. When the cap 14 is inserted into the mounting tube 11 while aligned with the stopper 13, the flange 15 can reach the tip end surface 16. That is, by forming the cap 14 in this way, after inserting the cap 14 into the mounting tube 11, it can be immediately rotated in either the left or right direction to shift the position of the notch 17 with respect to the locking pawl 13. For example, the flange 15 is inserted between the tip end face 16 and the locking pawl 13, and the light bulb 5 is attached to the mounting tube 11.

By the way, as shown in FIG. 3, in the embodiment of the present invention, four dry batteries 6a to 6d are connected in series, a light bulb 5 is attached between the dry batteries 6a and 6d, and a light bulb 5 is connected between the dry batteries 6c and 6d. An example in which switch 3 is installed is shown below. Accordingly, the flange 15 of the light bulb 5 and the dry battery 6a are attached to the battery holding frame 4 accordingly.
a grounding fitting 18a that provides electrical continuity between the center contact 10 of the light bulb 5 and the dry battery 6d;
d and a lead wire 1 that conducts electricity between the dry batteries 6b and 6c.
9c is attached to the bottom surface of the body 1, and a lead wire 19b for electrically connecting the dry batteries 6a and 6b and a contact piece 12 for electrically connecting the dry batteries 6c and 6d are attached.

Of course, in the above, the locking claw 13 and the grounding metal fitting 1
8a, and the locking pawl 13 is formed by bending the tip of the grounding metal fitting 18a inward.

(Effects of the Invention) As described in detail above, the present invention forms an insertion hole in the center of the reflector 9 of the light source unit 2, and
A mounting tube 11 is provided protrudingly at a position corresponding to the insertion hole, and a notch 17 is formed in the flange 15 of the light bulb 5 at a position slightly protruding from the distal end surface 16 of the mounting tube 11.
By attaching a slightly smaller locking claw 13 and integrating this with the grounding fitting 18a, the reflecting mirror 9 does not require a support fitting or a socket for attaching the light bulb 5, so the structure is extremely simple. As a result, the number of parts has been reduced, and the number of assembly steps has also been reduced, reducing production costs.In addition,
For the user, this eliminates accidents such as losing sight of the socket when replacing the battery.

[Brief explanation of drawings]

FIG. 1 is a vertical sectional side view showing an embodiment of the present invention;
Fig. 2 is an exploded perspective view showing the main parts of the above, Fig. 3 is a circuit diagram of the same, Fig. 4 is a longitudinal side view showing an example of a conventional hand-held lamp, and Fig. 5 is a longitudinal side view showing the main parts of the above. be. 1; body, 2; light source unit, 3; switch, 4; battery holding frame, 5; light bulb, 6; dry battery,
7; Mounting frame, 8; Lens, 9; Reflector, 10; Central contact, 11; Mounting cylinder, 12; Contact piece, 13; Locking claw, 14; Base, 15; Flange, 16; Tip surface, 17; Notch, 18; Earth fitting, 19; Lead wire.

Claims (1)

[Claims] 1 A dry battery and a battery holding frame are loaded into the body,
In hand-held electric lamps that have a light source unit attached to the front and a flashing switch formed in the appropriate place, the flange of the light bulb has one or several cutouts, and the reflector of the light source unit has an insertion hole in the center. is formed, and a mounting tube having an inner diameter slightly larger than the outer diameter of the base of the light bulb and smaller than the outer diameter of the flange is formed in the battery holding frame at a position corresponding to the insertion hole of the above-mentioned reflector. A light bulb mounting structure for a hand-powered lamp, characterized in that a locking claw formed by bending the tip of a grounding fitting inward is attached to a position slightly protruding from the tip of the mounting tube.