JPH0512925Y2 - - Google Patents

Description

[Detailed Description of the Invention] <<Industrial Application Field>> This invention relates to the improvement of dry cell batteries for marker lights used in road marker lights for construction use and the like.

《Prior art》 Dry cell batteries for marker lights used as road sign lights for construction work were created on the premise that they would be discarded once the battery capacity ran out, and were extremely simplified as shown in Figure 5. It has a structure.

The conventional dry battery for marker lights shown in the figure includes a terminal mounting plate 1 having a boss portion 1a integrally protruding from the center of the lower part;
A socket 2 as an output end of a battery press-fitted into the boss portion 1a, a plurality of unit cell groups 3 arranged coaxially under the terminal mounting plate 1 and connected in series or in parallel to each other, and the socket 2. A pair of lead wires 4 are provided to connect the unit cell group 3, and both ends of each lead wire 4 are connected to positive and negative electrodes formed on the outer periphery and lower end of the socket 2, and solder 5 is applied to both terminals of the unit cell group 3. The connection between the socket 2 and the cell group 3 is completed by directly fixing the socket 2 and the cell group 3. Then, these assemblies are housed in the cylindrical outer case 6, and the terminal mounting plate 1 is inserted into the opening of the outer case 6. The product is completed by caulking the edges.

With this structure, it can be used as a road sign light simply by attaching a miniature light bulb (not shown) to the socket exposed on the end face of the exterior cylinder.

The miniature light bulb is integrated with a blinking controller, and the blinking controller is attached to the dry battery for the marker light, and can be used repeatedly by replacing the blinking controller with a new battery each time the battery group is exhausted. can.

However, the dry battery for marker lights with this structure had the following problems.

<<Problems to be solved by the invention>> In other words, since the socket 2 is press-fitted into the boss portion 1a using resin elasticity, it was originally designed to prevent it from becoming tangled when some force is applied. However, in reality, when removing or screwing in the light bulb, the controller is attached and removed, so a larger external force than expected is applied to the contact surface between the socket 2 and the boss portion 1a, causing the socket to 2
There were times when I got confused.

When this twisting occurs, the lead wire 4
Since the wire is wrapped around the outer periphery of the socket and a large tensile force is applied, the wire is likely to break at the soldering point 5, which is the weakest point, which is the main cause of complaints.

Further, even when there is no rotation, the force required for screwing in is considerably large, and there is a risk that the socket itself may be destroyed.

That is, as shown in FIG. 6a, the socket 2 opens at the center of the bottom surface of the bottomed cylindrical threaded portion 2a,
Insulator 2b such as fiber inside and outside this opening.
A terminal pin 2c for connection is caulked in a rivet shape with the terminal pin 2c sandwiched between the terminal pins 2c and 2c. Therefore, if the cap A of the miniature light bulb is screwed in with excessive force, the insulator 2
b may be greatly deformed or, in extreme cases, may be damaged, pressing on the insulator 2b as shown in b in the same figure, and causing disconnection or shorting as described above. .

Moreover, in this structure, the positive electrode terminal 3 of the unit cell group 3
a and the terminal pin 2c of the socket 2 via the lead wire 4, it is necessary to insert a soldering iron into the gap formed in the support leg 1b of the terminal mounting plate 1 to make the connection. Wiring work was also troublesome.

This invention is intended to solve the above-mentioned problems, and its purpose is to prevent the socket from turning around the boss part without limit or from breaking through the socket, to prevent wire breakage and shorts, and to prevent the lead from connecting to the socket. To provide a dry battery for a marker light in which wires are connected only at one point on the outer periphery, thereby simplifying wire connection work.

<Means for Solving the Problems> In order to achieve the above object, this invention includes a bottomed cylindrical exterior cylinder, a plurality of cylindrical cell groups arranged coaxially within the exterior cylinder. , in a dry battery for a sign light, comprising a terminal mounting plate fitted and fixed to the open end of the outer cylindrical body, and a socket for connecting a miniature light bulb press-fitted into a boss provided at the center of the mounting plate: The socket is provided with a flange portion having a plurality of notches formed integrally on the bottom periphery of a cylindrical screw portion penetrating vertically, and a plurality of protrusions protruding from the bottom surface of the boss portion to fit into each of the notches. The socket is fitted with the flange part abutting against the bottom of the boss part, and the protrusion protruding from the notch is welded to fix the flange part to the boss part. When the battery is screwed into the socket, the end of the base passes through the socket and comes into pressure contact with the positive terminal of the battery group.

<<Operation>> In the above configuration, since circumferential rotation of the socket is restricted by the welded part, it will not rotate at all due to external force unless the welded part is destroyed. Moreover, since the base end of the miniature light bulb is in direct pressure contact with the positive terminal of the cell group, the lead wire can only be connected at one point on the outer periphery of the socket.

<<Example>> Hereinafter, an example of this invention will be described in detail using the drawings.

1 to 4 show an embodiment of this invention. It should be noted that the configuration of this invention other than the main parts is almost the same as the conventional one, so the reference numerals of the members other than the main parts will be the same, and only different parts will be explained using different reference numerals.

The dry battery for a marker light shown in the figure basically consists of a terminal mounting plate 1 having a boss part 20 integrally protruding from the center of the lower part, a socket 21 press-fitted into the boss part 1a, and the terminal mounting plate 1, which is basically the same as the conventional one. A plurality of unit cell groups 3 are coaxially arranged on the lower part of the plate 1 and connected to each other in series or parallel, and the negative electrodes at the bottom of these unit cell groups 3 are connected by solder to the outer periphery of the socket 21. It consists of a lead wire 4 and a bottomed cylindrical outer case 6 made of paper and housing these assemblies.

The socket 21 includes a cylindrical threaded part 21a passing through the upper and lower parts, a flange part 21b integrally formed on the lower periphery of the threaded part 21a, and 3 parts on the periphery of the flange part.
It consists of notches 21c formed at equal intervals.

The terminal mounting plate 1 is molded from an elastic polyolefin resin such as polyethylene or polypropylene, and has a plurality of reinforcements on the outer periphery of the upper part of the support leg 1b arranged at the periphery of the uppermost shoulder of the cell group 3. A concentric disk-shaped flange portion 1d reinforced by a retaining rib 1c is integrally molded, and the boss portion 20 is integrally provided protruding from the center of the lower part of the flange portion 1d.

The bottom surface of the boss portion 20 has three holes in the circumferential direction according to the notches 21c formed in the socket 21.
A protrusion 20a is formed protrudingly at the location.

Therefore, from the bottom of the boss portion 20 to the socket 2
1 is press-fitted, and the notch 21c formed in the flange portion 21b is positioned on the protrusion 20a, and the notch 21
With the protrusion protruding from c, the protrusion 20a is melted using an ultrasonic horn or heating, and the flange portion 2
If it solidifies while being pressed against 1b, socket 2
1 is fixed in a non-rotating state in the circumferential direction.

Next, the negative electrode terminal portion at the lowermost end of the unit cell group 3,
Both ends of the lead wire 4 are soldered to the flange portion 21c of the socket 21, each part is accommodated in the exterior cylinder 6 with the unit battery groups 3 arranged in series, and the bottom surface of the exterior cylinder 6 is connected to the bottom plate 6b. Once the lid is closed and caulked, the battery for the marker light is completed.

When attaching a miniature light bulb to the battery for a marker light constructed as described above, the base A protruding from the bottom surface of the blinking controller 22 containing the miniature light bulb is screwed into the inside of the socket 21, and the leading end is inserted into the socket 21. By protruding from the bottom of the unit cell group 3 and coming into pressure contact with the positive terminal 3a at the top of the unit cell group 3, the miniature light bulb inside the blinking controller 22 is connected and starts blinking.

At this time, even if the cap A is pushed in with excessive force, the socket 21 itself will not rotate, and the force will try to rotate the terminal mounting plate 1, but the blinking controller 22 will prevent the curling. Since it comes into contact with the portion 6a and presses down the terminal mounting plate 1 from above, the terminal mounting plate 1 is also prevented from rotating.

<<Effects>> As explained in detail using the embodiments above, in the dry battery for marker lights according to this invention, since the rotation of the socket in the circumferential direction is controlled by the welded part, the welded part Unless the bulb is destroyed, it will not twist at all due to external force, and since the end of the miniature bulb's base is in direct pressure contact with the positive terminal of the battery pack, the lead wire can only be connected at one point on the outer periphery of the socket. Become. Therefore, according to this invention, even if an excessive screwing force is applied to the socket part, there will be no breakage or shorting, and furthermore, the wiring work is easy.

[Brief explanation of the drawing]

Fig. 1 to Fig. 4 show an embodiment of this invention, Fig. 1 is an exploded perspective view of a dry battery for a marker light, Fig. 2 is a partial cross-sectional perspective view showing the fixed state of the socket and boss portion, and Fig. 3 The figure is a partially sectional side view showing the assembled state, FIG. 4 is a sectional view taken along the - line in FIG. 3, and FIG.
FIGS. 6a and 6b show a conventional dry battery for a marker light, FIG. 5 is a longitudinal sectional view, and FIGS. 6a and 6b are enlarged sectional views for explaining the detailed structure and broken state of the socket. DESCRIPTION OF SYMBOLS 1...Terminal mounting plate, 1a...Boss part, 3...Battery group, 4...Lead wire, 5...Solder, 6...Exterior cylindrical body, 20...Boss part, 20a...Protrusion, 21
...Socket, 21a...Cylindrical threaded part, 21b...
...flange part, 21c...notch, 22...blinking controller (small light bulb), A...cap.

Claims (1)

[Claims for Utility Model Registration] A cylindrical exterior cylinder with a bottom, a plurality of cylindrical unit cells arranged coaxially within the exterior cylinder, and a group of cylindrical unit cells that are fitted and fixed to the open end of the exterior cylinder. In a dry cell for a marker light, which is equipped with a terminal mounting plate and a socket for connecting a miniature light bulb that is press-fitted into a boss provided at the center of the mounting plate: A flange portion having a plurality of notches formed on the periphery is integrally provided, while a plurality of protrusions that fit into each of the notches are protruded from the bottom surface of the boss portion, and the flange portion abuts against the bottom of the boss portion. At the same time, the protrusion protruding from the notch is welded to fix the flange part to the boss part, and when the miniature light bulb is screwed into the socket, the base end of the miniature light bulb is attached to the socket. A dry battery for a marker light, characterized in that it penetrates and is pressed into contact with the positive terminal of a battery group.