JPS6340847Y2 - - Google Patents

Description

[Detailed Description of the Invention] This invention relates to a dry battery for a sign light that can be used as a road sign light, etc. by simply attaching a miniature light bulb to a socket attached to an exterior case.

This type of dry cell battery for marker lights is used for road marker lights, etc., and is made on the premise that it will be discarded when the battery capacity runs out, and is essentially different from ordinary portable electric lights. In other words, a plurality of unfinished batteries are housed inside the outer paper tube, and a miniature light bulb socket connected to the inner battery is attached to one end of the outer paper tube. It can be said that there is no socket provided, and a miniature light bulb socket is simply provided as an output terminal for the battery. And, as is clear from the intended use of this type of marker light, as a disposable marker light, this type of marker light battery does not impair the minimum necessary functionality.
An important issue for manufacturers is how to produce this at a low cost.

FIG. 1 shows a typical structure of a conventional dry cell battery for a marker light. As shown in the figure, the upper and lower edges of the exterior cylindrical body 1 are formed with roll locking parts 1a and 1b that are bent inward by roll processing, respectively.
A bottom plate 2 and a socket plate 3 are locked and fixed inside these locking portions 1a and 1b, respectively. Two unit cells 4a and 4b are housed inside this exterior cylindrical body 1 with an intermediate insulating paper 5 interposed therebetween.
A and 4b are also soldered to a lead wire 6a and connected in series. Further, an auxiliary cylinder 7 is provided between the upper surface of the upper unit cell 4a and the lower surface of the socket plate 3, which acts as a spacer and stabilizes the socket plate 3. This auxiliary cylindrical body 7 is fixed to the lower surface of the socket plate 3 with adhesive or the like. A screw-type socket 8 for mounting a miniature light bulb is attached to the center of the socket plate 3. As is well known, this screw-type socket 8 forms a female screw into which a normal miniature light bulb having a screw-type plug part is screwed, and also has two terminals that electrically contact the tip terminal and the outer peripheral terminal of the miniature light bulb plug part. It has a terminal part. This threaded socket 8 is passed through a hole in the center of the socket plate 3, positioned by a flange at its upper end, and fixed to the socket plate 3 with adhesive, for example. Further, the peripheral terminal of the screw type socket 8 and the cathode terminal of the lower cell 4b are connected to a lead wire 6b, and the tip terminal of the screw type socket 8 and the anode terminal of the upper cell 4a are connected to a lead wire 6c, each of which is soldered. connected by a mount.

Since the above-mentioned conventional battery for marker lights has a structure in which the miniature light bulb is screwed into the screw socket 8,
The following shortcomings were pointed out. It is often used as a marker light at road construction sites where there are many vibrations and shocks, but at that time, the connection of the small light bulb screwed into the screw socket 8 tends to loosen due to vibrations and shocks, and poor contact due to loosening may also occur. The miniature light bulb often goes out when lit. Furthermore, it is extremely troublesome for workers to screw the miniature light bulb into the screw-type socket 8 while wearing gloves at a construction site during the harsh winter season. Furthermore, if the miniature light bulb is not screwed in sufficiently, it is likely to become loose as mentioned above, and if it is screwed in more forcefully than necessary, the threaded socket 8 itself will turn with it, which will damage the internal lead wires 6b and This will lead to a situation where the connection at 6c gets disconnected. This failure is particularly likely to occur if the miniature light bulb is attached and detached many times.

This idea was created in view of the problems of the conventional methods mentioned above, and its purpose was to make it easy to install miniature light bulbs without significantly increasing manufacturing costs.
Another object of the present invention is to provide a dry battery for a marker light that is improved so that it is less likely to become loose.

An embodiment of this invention will now be described in detail based on the drawings.

Figure 2 shows a dry battery for marker lights according to this invention, in which the main body case is composed of an exterior cylinder 1 having roll locking parts 1a and 1b at both upper and lower ends, a bottom plate 2, and a socket plate 3. , an auxiliary cylinder 7 serving as a spacer is fixed to the bottom side of the socket plate 3 , and two unit batteries 4
It is the same as the conventional one shown in FIG. 1 in that a and 4b are connected in series through an intermediate insulating paper 5 and a lead wire 6a and housed in the exterior cylinder 1.

The characteristic feature of the dry battery for marker lights according to this invention is that the socket 9 attached to the socket plate 3
is not a conventional screw type socket 8 but a swan type socket (also referred to as a bayonet type socket). Details of the swan ball socket 9 are shown in FIG. In other words, the object to which the battery for the marker light of this invention is connected is not a screw-type miniature light bulb, but a swan-type miniature light bulb (referred to as a swan bulb).
As shown in FIG. 4, this Swan type miniature light bulb has a plug portion 11 having a structure in which two locking pins 10, 10 are protruded from the circumferential surface of a cylindrical portion.

The Swan type socket 9 corresponding to the above-mentioned Swan type miniature light bulb is constructed as shown in FIG. The socket body 12 is formed into a generally cylindrical shape by press molding from a single metal plate. Socket body 1
Two fixing tongue pieces 12a, 12a are integrally extended on the upper part of the socket plate 2, and as shown in FIG. At the same time, the fixing tongue piece 12a
is inserted into the small hole of the socket plate 3 from above, and the downward protrusion of the tongue piece 12a is caulked inward. As a result, the socket body 12 is connected to the socket plate 3.
is firmly fixed to. In addition, the socket body 1
At the top of 2 is the above-mentioned locking pin 10 of the Swan type miniature light bulb.
A groove 13 is cut out which engages with. This groove 13
is divided into a vertical introduction groove 13a and a locking groove 13b curved at a substantially right angle to the introduction groove 13a. Further, a donut-shaped insulating plate 14 is arranged on the lower surface of the socket main body 12, a spring 15 is arranged on the upper part of the insulating plate 14, and a seat plate 16a is arranged on the upper part of the spring 15.
A movable member 16 consisting of a guide shaft 16b and a guide shaft 16b is disposed, and a hemispherical contact 17 is disposed above the seat plate 16a. The guide shaft 16b of the movable member 16 passes through the insulating plate 14 and the lower surface of the main body 12, and the whole is housed inside the main body 12, and the spring 15 is inserted between the insulating plate 14 and the seat plate 16a. . A lead wire 6c extending from the contact 17 passes through the guide shaft 16b,
It is soldered to the anode of the upper unit cell 4a. Further, the main body 12 is connected to the lower unit cell 4 by the lead wire 6b.
connected to the cathode of b.

To attach a swan type miniature light bulb to the swan type socket 9 configured as described above, the locking pin 10 of the miniature light bulb is made to correspond to the groove 13, and the movable member 16 is moved while compressing the spring 15. When the locking pin 10 reaches the innermost part of the introducing groove 13a, twist the miniature light bulb by a slight angle, guide the locking pin 10 into the locking groove 13b, and release your hand from the miniature light bulb. Then, the locking pin 10 is locked in the upper part of the locking groove 13b by the action of the elastic force of the spring 15, and the miniature light bulb is completely installed in the socket 9. To remove the miniature bulb from the socket 9, the miniature bulb is slightly twisted in the opposite direction to that described above, and the elastic force of the spring 15 lifts the miniature bulb upward.

As mentioned above, the miniature light bulb can be attached and removed with a very slight twisting operation, which is much simpler than the conventional screw-in type, and can be easily done even while wearing gloves. In addition, there is no need to delicately adjust the screwing force as in the conventional case, and there is no need to break the lead wire, and after the miniature bulb is attached, sufficient contact pressure is maintained by the elastic force of the spring 15. The engagement pin 10 and the engagement groove 13b
Since the elastic force of the spring 15 is always acting between the two, the engaged state will not loosen or come off due to vibrations or shocks at the construction site.

As explained in detail above, according to this invention, by improving the socket of the miniature light bulb, a dry battery for a marker light can be easily installed and removed without significantly increasing the manufacturing cost, and does not cause contact failure due to looseness. can be realized.

[Brief explanation of the drawing]

Figure 1 is a structural diagram of a conventional dry cell battery for marker lights, Figure 2
FIG. 3 is an exploded perspective view showing details of the Swan type socket shown in FIG. 2, and FIG. 4 is a perspective view of a Swan type miniature light bulb. 1...Exterior case, 2...Bottom plate, 3...Socket plate, 4a, 4b...Battery, 6a, 6b, 6c
... Lead wire, 7 ... Auxiliary cylinder body, 8 ... Screw type socket, 9 ... Swan type socket, 10 ... Locking pin, 12 ... Socket body, 13 ... Groove, 13
a...Introduction groove, 13b...Latching groove, 15...Spring, 16...Movable member.

Claims (1)

[Scope of utility model registration request] An exterior cylinder, a bottom plate disposed inside a roll locking portion at the lower end of the exterior cylinder, a plurality of unit cells housed inside the exterior cylinder, and a roll at the upper end of the exterior cylinder. A socket plate disposed inside the locking part, an auxiliary cylindrical body interposed between the lower surface of the socket plate and the unit cell, and a swan-type structure that is fixed to the center of the socket plate by caulking. A marker light consisting of a swan type socket having an introduction groove for attaching a small light bulb, a locking groove, and a movable member biased by a spring, and a lead wire connecting the swan type socket and the unit cell. Dry cell battery.