JPS6340846Y2 - - 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. As is clear from the intended use of this type of marker light, which is a disposable marker light, it is important for manufacturers to manufacture batteries for this type of marker light at a low cost without sacrificing the minimum necessary functionality. This is a serious issue.

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. A 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 devised in view of the conventional problems mentioned above, and its purpose was to make it easier to install the miniature light bulb by adopting a Swan type socket (also called a bayonet type socket) that is compatible with the Swan type miniature light bulb. A marker light that prevents contact failure due to looseness, and that the swan type socket has the function of a switch so that the miniature light bulb can be turned off while it is attached to the socket. The purpose of this company is to provide dry batteries for use.

Hereinafter, embodiments of this invention will 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 9 with an added switch function, the details of which 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).
It is. 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, and electrically connects the circumferential surface and The lower parts each serve as connection terminal parts.

The Swan type socket 9 according to this invention 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. Two fixing tongues 12a, 12a are integrally extended on the upper part of the socket body 12, 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 firmly fixed to the socket plate 3.

Further, on the upper peripheral surface of the socket body 12, two grooves 13, 13, which engage with the locking pin 10 of the Swan type miniature light bulb, are symmetrically opened in the front. This groove 13
is an introduction groove 1 that guides the locking pin 10 downward.
3a, a locking groove 13b bent at a substantially right angle from the innermost part of the introduction groove 13a, and an intermediate locking groove 13c that branches in the middle of the introduction groove 13a and is substantially parallel to the locking groove 13b. Become.

Two donut-shaped insulating plates 14a and 14b are disposed on the lower surface of the socket body 12 so as to sandwich the lower edge of the body 12. A spring 15 is disposed above the upper insulating plate 14a, and a seat plate 16a and a guide shaft 16 are disposed above the spring 15.
A movable member 16 consisting of b is arranged, and the seat plate 1
A hemispherical contact 17 is arranged on the top of 6a. The guide shaft 16b of the movable member 16 passes through the spring 15, the insulating plate 14a, the lower surface of the socket body 12, and the insulating plate 14b.
The main parts of the socket body 12 are housed in the lower part of the socket body 12, and a spring 15 is inserted between the insulating plate 14a and the seat plate 16a. This spring 15
Although the movable member 16 is urged upward by the elastic force, the movable member 16 is restricted to a certain upper limit position. Further, a lead wire 6 extending from the contact 17
c passes through the guide shaft 16b and is soldered to the anode of the upper unit cell 4a. Further, the socket main body 12 is connected to the lower battery 4b by the lead wire 6b.
connected to the cathode of

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 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 There's nothing left to do.

Furthermore, according to the Swan type socket 9 according to this invention, there is no need to remove the miniature light bulb from the socket 9 when temporarily turning off the miniature light bulb. That is, by slightly twisting the small light bulb from the lit state, the locking pin 10 is inserted into the guide groove 1 from the locking groove 13b.
3a, return it upward to the branching point of the intermediate locking groove 13c, and there, twist the small bulb again and tighten the locking pin 10.
is moved into the intermediate locking groove 13c. Then, the miniature light bulb comes out upward by the distance between the locking groove 13a and the intermediate locking groove 13c, and in this state,
Movable member 1 with the tip terminal of the miniature light bulb at the upper limit position
away from contact 17 on 6. Therefore, the miniature light bulb goes out, and the locking pin 10 and intermediate locking groove 13
The miniature light bulb is held in the socket 9 by engagement with the socket 9.

In this way, it is possible to turn off the light while holding the miniature light bulb in the socket 9, so when the miniature light bulb is removed, the trouble of storing it so that it will not be damaged or the trouble associated with losing it is completely eliminated. Ru.

Note that the shape of the groove 13, which is a combination of the introduction groove 13a, the locking groove 13b, and the intermediate locking groove 13c, is not limited to the above embodiment.
This can be implemented in various ways as shown in Figures A, B, and C.

As explained in detail above, with the dry battery for marker lights according to this invention, it is easy to install miniature bulbs, there is no contact failure due to looseness, and even when the miniature bulb is turned off, it can be removed from the socket. There is no need to remove the light bulb, and there is no need to worry about storing or losing the removed miniature light bulb, which greatly improves practical usability.

[Brief explanation of the drawing]

Figure 1 is a structural diagram of a conventional dry cell battery for marker lights, Figure 2
The figure is a structural diagram of a dry battery for a marker light according to an embodiment of the present invention, Figure 3 is an exploded perspective view showing details of the Swan type socket shown in Figure 2, Figure 4 is a perspective view of a Swan type miniature light bulb, and Figure 5 is a perspective view of a Swan type miniature light bulb. The figure shows another embodiment of the groove shape of the socket. 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, 13c...Intermediate locking groove, 15...Spring, 16...Movable member, 17...Contact.

Claims (1)

[Scope of utility model registration request] an exterior cylindrical body for storing a plurality of unit cells; a socket plate disposed at the upper end of the exterior cylindrical body; and a swan-type socket for mounting a swan-type miniature light bulb attached to the center of the socket plate; A cylindrical socket body consisting of the swan type socket and a lead wire for connecting the unit cell, the swan type socket having a groove that engages with the locking pin of the miniature light bulb plug portion, and the socket body. The groove includes an introduction groove that guides the locking pin downward, and an approximately It consists of a locking groove that bends at a right angle, and an intermediate locking groove that is almost parallel to the locking groove that intersects in the middle of the introduction groove, and when the locking pin is positioned in this intermediate locking groove, the small bulb A dry battery for a marker light, characterized in that the battery is configured to be separated from the movable member.