JPS5866719A - Electric power leadout plug for motor car - Google Patents

Abstract

PURPOSE:To make processing and assembling of a connecting tongue easy, by so constituting that a metal ring for an external electrode of a title plug which is used by inserting it into a socket of a cigarette lighter is formed by bending a band plate provided with connecting tongue so that it is connected by a terminal to the inside of an external electrode connecting terminal induction groove. CONSTITUTION:A plurality of tongue 61 for terminal connection of a socket of a cigarette lighter B are formed, a metal band plate 6 whose butt parts 62 for both playing ends are bent into L-shape is rolled in a cylindrical form, and a fuse tube 4 is installed into a shaft hole 21 after a metal ring 6 is inserted into a main insertion part 2 by adapting the butt parts 62 to an induction groove 26 of the main insertion part 2 until the ring 6 hits against a step part 27 of the main insertion part 2. Then, a notch groove 80 of a fork part 81 on a knob part 3 side is moved forward in correspondence with the butting part 62 on a side of the main insertion part 2, which is further connected by threading over a threaded part 20 through the rotation of the knob part 3 with the threaded part 20. As for disassembly, it is completed in a reversed procedure. With this constitution, processing of the connection tongue becomes simple and assembly of the same becomes easy.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to an improvement in a power outlet plug for an automobile, which is inserted into a socket of a cigarette lighter in an automobile to extract power.

An automotive power outlet plug has a fuse tube housed in its inner cavity, a push-in main part on the front half that has an inner and outer terminal, a connecting terminal piece for the outer pole, and a connecting terminal piece for the inner pole. The knob part on the rear half side, which has a connection terminal piece, is removably connected, and each terminal on the push-in main body side and the terminal on the knob part side, which are in a connected state by separating the push-in main body part and the knob part, are connected removably. Each terminal piece is detachable, and the push-in main body part and the knob part are connected and inserted into the socket of a car's cigarette lighter to extract the desired power source, but the terminal on the socket side of the cigarette lighter is formed along the axial direction as shown in Figure 19, so when inserting the power outlet plug into the socket, even if the terminals on the plug side are not correctly aligned with the terminals on the socket side, the plug The terminal on the plug side is formed into a ring shape so that the connection can be made simultaneously with the insertion of the plug, and a plurality of connecting tongues projecting outward are formed on the circumferential surface of the terminal. However,
Conventional outer terminals were formed by squeezing a metal plate into a ring shape, and required complicated processes to process the connecting tongues on the ring-shaped circumferential surface. .

Therefore, the present invention facilitates the processing of the connecting tongue piece formed on the outer terminal, makes it easy to assemble the outer terminal, and also makes it possible to easily connect the push-in main body part and the knob part. When connected, the outer terminal is held in a correctly positioned state, and it is securely connected to the outer terminal connecting terminal piece on the knob side, and furthermore, the fuse tube can be easily replaced. It is to make it.

To specifically explain the embodiment based on the drawings, (I
) is an automatic power outlet plug, which is made of an insulating material such as synthetic resin so that the first half and the second half can be attached and detached.The push-in main part (2) on the first half and the knob part (3) on the second half are made of insulating material such as synthetic resin. and are removably connected. Push main part (2) and knob part (3)
) may be implemented as appropriate. In this example, a female threaded portion is provided at the inner front end of the knob portion (3), and the push-in main portion (2) A threaded part (A) is provided on the outer peripheral surface on the rear end side, and these threaded parts (A) and
(30) are integrally connected (connected) by screwing together, and by releasing the screwing, the pushing main body part (2) and the knob part (3) are separated.

The insertion main body (2) has a fuse tube (
4), and the front end has a through hole (22) for assembling the inner terminal (5), and a plurality of holes (3 in this example) around the through hole. 1) protrusion (c)
...is formed. In addition, in front of the shaft hole Q1),
As shown in FIG.
As shown in Figures 6 and 7, a U-shaped groove (C) with a short depth is formed from the rear end edge at the rear, and the rear of the shaft hole (21) is connected to the Mifuse tube (4). This is the insertion opening (21a) into which the holder is inserted.

In addition, the circumferential surface of the push-in main body (2) is provided with an axial guide groove (
26) with the rear side (right side in Figure 5) open.

The inner terminal (5) is formed by forming a metal plate into a dish shape as shown in Fig. 2, and continuously molding the metal plate into one body using a press or the like so that a cylindrical projecting part 60) is formed inside the plate. A hole 6υ that engages with the projection (23) is provided around it, and the overhang (50) is inserted through the hole without engaging the hole 6υ with the projection (23). (Insert it into 221, and caulk its protruding part (50) with a tool such as a punch from the shaft hole (2υ side,
By making the caulking portion (52I) hang over the engagement step portion (24), it is fixed to the front end of the pushing main body portion (2).

(6) is a metal ring for an outer pole that is assembled onto the outer circumferential surface of the push-in main body (2).

The metal ring (6) is a metal plate cut into a strip shape by pressing as shown in Fig. 14, and is connected to a terminal C formed in the socket of the cigarette lighter B as shown in Fig. 19. Multiple tongue pieces (60, (6I), (61) (3 in this example)
1) is bent into a cylindrical shape as shown in Fig. 12 in another step, and the abutting portions of both free ends are bent toward the axial direction, roughly. As shown in Fig. 13, both free ends are bent 90 degrees to the left and right, and the width of the free ends is
The width is approximately the same as the width 2 of 6).

Further, the abutting portion sister of the metal ring (6) is, for example, the 16th
As shown in the figure, the abutment part is bent in the axial direction, or as shown in Fig. 17, the abutment part is bent in the axial direction, and both free ends are folded back upwards. Further, as shown in FIG. 18, the abutting portion (62) may be bent in the axial direction, and both free ends may be bent at 90 degrees in the same direction, etc., as appropriate.

(7) is a core to be assembled on the front opening side of the knob part (3), and is made of an insulating material such as synthetic resin, and is used to connect the connecting terminal piece (8) for the outer pole and the inner pole. It is equipped with an assembly hole (70) j' (71) for assembling the terminal piece (9), and a set hole ff51 for setting the spring (73j) is formed on the front surface of the central part. , σ4)・σ4)・
The resin material is poured into a mold etc. to create a core (when creating force,
This is a distortion prevention relief hole that prevents distortion by making the entire wall thickness approximately the same. Furthermore, the connection terminal piece (9) for the inner electrode to be assembled to the core (7) is made of an elastic band-like metal plate as shown in Fig. 10, and one end thereof (on the right side of the drawing) The soldering part (91) is provided with a caulking claw (90), and the other end is bent 90 degrees toward the axis and formed into a bent part (92) that comes into contact with the fuse pipe (4). , the soldering is carried out from the front side (left side of the drawing) of the core (7) with the part (91) at the beginning through its assembly hole σ1).
When inserting the spring 0 into the set hole 65+, the bent portion - comes into contact with the spring (73),
In addition, at the point where the caulking pawl (90) protrudes from the assembly hole (71), the tip of the caulking pawl mark acts on the rear wall surface of the core (7), thereby allowing the core (7) to be assembled. In addition, the connection terminal piece (8) for the outer electrode may be formed by bending a step-like rising wall on the front half side (left side in the drawing) of an elastic band-like metal plate as shown in Fig. 10. , the tip (8+) of the 11th
As shown in the figure, it is shaped like a fork that expands and contracts with notched grooves. Then, attach the other end (right side in the drawing) to the caulking nail (8
The soldering joint provided with 21 is formed in the part (goods), and the soldering part (83) is inserted into the assembly hole α2 with the first stage rising wall (84) as the core ( At the point where the caulking nail (82) comes into contact with the front wall of the force and protrudes from the assembly hole (721), the tip of the caulking nail (82) engages with the rear wall of the force (721) so that it can be assembled. The width of the tip (81) of the connection terminal piece (8) for the outer pole is the width of the push-in main body (2
), so that the butt ws L62) of the metal ring (6) is held in close contact with the notch groove (80) by making it tightly fit with the guide groove (26) provided in the notch groove (80). In this case, the butt part (62
), in the case of FIGS. 16 and 17, which are modified examples of FIG. However, in the case of Fig. 18, the butt part (6) is connected to the guide groove (
26) so that the abutting portions (62) come into close contact with each other.

01) is a cord insertion opening opened at the rear of the knob part (3), and the gloss is a circumferential groove that accommodates the core (7) in a loosely fitted state in the circumferential direction, and is located on the front open opening side of the knob part (3). , and is formed deeper than the female threaded portion (30).

Next, to explain the function and effect, the terminal of the rabbit cord (33) in Fig. 4 is exposed and the cord wire 04) (34) is connected.
and insert it into the cord insertion slot (3) of the knob (3).
1) Insert each connection terminal for the inner and outer poles and assemble it into the core (7) at the point where the cord wire (B) and 04) protrude from the front side of the knob (3). It is difficult to solder pieces (8) and (9). After applying the code wire example to (91) and (34) and applying solder from above, solder the code C3.
3) to store the core (7) into the circumferential groove C32 of the knob (3) by pulling it (arrow A in Figure 3).

Next, align the butt part (62) of the metal ring (6) with the guide groove (26) of the insertion main body (2), and then insert the metal ring (6).
After fully inserting it until it hits the stepped part (27), insert the shaft hole (
21) Insert and set the fuse tube (4) inside. And the fork part (8 notch grooves (8) on the knob part (3) side
0) corresponds to the abutment part (62) on the pushing main body part (2) side as shown in No. 151ffl, move the pinch part (3) forward (arrow in Fig. 3), and roughly press the knob part (3). The female thread part (30) and the male thread part (2) are screwed together to connect them together.Also, to remove them, rotate the knob part (3) in the opposite direction from when they were screwed together to connect the female thread part (2). 3
0) and the male thread part (4), then remove the knob part (
3) to the rear (in the opposite direction to the arrow opening in Figure 3), so that the fuse tube (4) is separated as shown in Figure 3 with the fuse tube (4) left on the side of the insertion main body (2). Become.

As described above, according to the present invention, the push-in main body has an inner terminal for the inner pole at the front end, a shaft hole for housing the fuse tube at the shaft center of the bore, and a metal ring for the outer pole on the outer peripheral surface. The front end of a knob formed separately from the main body is removably connected to the rear end, and the inner terminal on the pushing main body side is connected to and separated from the core housed in the inner cavity of the knob. In a power outlet plug for an automobile in which a movable inner terminal piece, a metal ring for an outer pole, and a connecting terminal piece for an outer pole that can be freely connected and separated are assembled, the outer circumferential surface of the push-in main body has an axially extending The metal ring is formed by forming a band-like metal plate with a plurality of connecting tongues into a ring shape with both free ends butted, and Both free ends of the abutted metal plates of the ring are formed with abutting portions bent in the axial direction and facing into the guide groove, and the connecting terminal piece for the outer pole is inserted into the guide groove. By pushing the tip into the guide groove, the protrusion □
Since the mating parts are shaped like a fork that expands and contracts so that they come into close contact with each other, the connecting tongue piece formed on the metal ring can be easily processed, and the metal ring It can be easily assembled by inserting the abutting part along the guide groove, and the end part of the connecting terminal piece for the outer pole, which is shaped like an expanding and contracting fork, can be butted. The metal ring and the connecting terminal piece can be reliably connected by holding the parts in close contact with each other. Moreover, if the connection between the insertion main body part and the knob part is released, the fuse pipe can be easily replaced because the fuse pipe is separated on the insertion main body side.

[Brief explanation of the drawing]

Fig. 1 is a side view of an automotive power outlet plug embodying the present invention, Fig. 2 is a cutaway side view of the same as the above, Fig. 3 is a partially cutaway side view of the pushing main body part and the knob part separated; Figure 4 is a partially cutaway side view with the core removed from the knob.
Fig. 5 is a plan view of the pushing main body, Fig. 6 is a rear view of the same as above,
Figure 7 is a sectional view taken along the line ■-■ in Figure 6, Figure 8 is a plan view of the core, Figure 9 is a rear view of the same as above, and Figure 10 is an exploded view of the push-in main body, metal ring, and core. Fig. 11 is a cross-sectional view of the outer electrode, Fig. 12 is a perspective view of the metal ring, Fig.
Figure 3 is a front view of the same as above, Figure 14 is a development of the same as above, and Figure 15 is a front view of the same as above.
The figures are perspective views before inserting the fork part of the connecting terminal piece into the butt part of the metal ring, Figures 16, 17, and 18.
The figure is a sectional view of each embodiment showing a modification of the abutting portion of the metal ring, and FIG. 19 is a partially sectional view of the cigarette lighter. Explanation of drawing symbols ■... Automotive power outlet plug 2... Insertion main body part 305. Knob 4-pipe fuse tube 5...Inner pole terminal 6...Metal ring for outer pole 7...
- Core 8... Connection terminal piece 9 for outer pole
... Adding the connection terminal piece for the inner pole ... The push-in main part's webbing part 21 ... The shaft hole as above 22 ... The same through hole n as above ... The protrusion as above 24 ... Engagement step part 26 as above... Guide groove as above 30... Female threaded part 31 of knob section... Cord insertion port 32 as above... Circumferential groove 61 as above... For connection of metal ring Tongue piece 62...Abutting part (material) of the metal ring...Notch groove 81 of the connecting terminal piece for the outer pole...Tip of the same as above 82...Same as above, clamping claw 83...Same as above For soldering, see Figure 5 2 11E71! ? Figure 6 = 5

Claims (1)

[Claims] At the rear end of the insertion main body, which has an inner terminal for the inner pole at the front end, a shaft hole for accommodating the fuse tube at the inner shaft center, and a metal ring for the outer pole on the outer circumferential surface, the main body and The front end of a separately formed knob is removably connected, and an inner terminal piece and an outer terminal that are detachable from the inner terminal on the pushing main body side are attached to the core housed in the inner cavity of the knob. In the power outlet plug for an automobile, which is assembled with a metal ring for use and a connection terminal piece for an outer electrode that can be freely connected and separated, a guide groove is provided along the axial direction on the outer circumferential surface of the push-in main body, and the metal ring is formed by forming a band-like metal plate having a plurality of connecting tongue pieces into a ring shape with both ends of the metal plate abutted, and both ends of the metal ring are abutted. A butting part is formed on the roadside that is bent in the axial direction and faces into the guide groove, and the outer electrode connecting terminal piece has a tip part inserted into the guide groove. A power outlet plug for an automobile, characterized in that it is shaped like a fork that expands and contracts so that the abutting portions are brought into close contact with each other when inserted.