JPH0446387Y2 - - Google Patents

Description

[Detailed Description of the Invention] (Industrial Application Field) The present invention relates to a holding structure for a car connector plug for obtaining power from a cigarette lighter socket of an automobile.

(Prior art) In the case of imported cars, as shown in Figure 4a, the internal dimensions of the cigarette lighter socket 9 are somewhat large, so the grounding spring plate 3 alone cannot be used in the case of domestically produced cars. , there is a slight gap S, and the car connector plug cannot be held firmly when inserted into the cigarette lighter socket 9. Therefore, in the conventional car connector plug, as shown in FIG. 4b, a hemispherical recess 2 is formed on the outside of the two-part case 1, and a plate-shaped locking spring 4 separate from the grounding spring plate 3 is installed. Attach with the connecting bolt 5 and nut, and with the inward protrusion 7 provided on the lock spring 4 engaged with the recess 2 and positioned, the bulge 8 is brought into contact with the inner surface of the cigarette lighter socket 9. I was trying to hold it.

(Problem to be solved by the invention) In the above conventional case, it is necessary to process the outside of the case 1 to form the hemispherical recess, and the case 1 is for domestic cars without the recess and the imported car with the recess 2. There was a problem in that two types had to be prepared, one for cars and one for cars.

In view of these conventional problems, it is an object of the present invention to provide a car connector plug holding structure that can be commonly used in sockets for domestic and imported cars without requiring any processing on the case.

(Means for Solving the Problem) In order to achieve the above object, the present invention includes a cylindrical case formed by connecting two vertically divided bodies with a rod-shaped connecting member, and a spring protruding from the outer periphery of the case. A holding structure for a car connector plug having a plate includes both parallel plates parallel to each other and having a through hole through which the coupling member is inserted, and an engaging member having a U-shaped cross section in which a predetermined portion of the case is sandwiched between the parallel plates. , a plate-shaped lock spring having a through hole through which the coupling member is inserted and rotatable around the coupling member; and a retaining member for preventing the lock spring from coming off;
Both parallel plates are provided with a convex portion formed on the outer surface around the through hole, and the lock spring engages with the convex portion at a predetermined position along the longitudinal direction of the car connector plug, and the lock spring engages with the convex portion at a predetermined position along the longitudinal direction of the car connector plug. On the other hand, the present invention is characterized in that it has an engaging part that positions and holds the lock spring itself, and a holding part that comes into contact with the inner surface of the socket and holds the car connector plug.

(Function) The car connector plug holding structure according to the present invention utilizes the rod-shaped connecting member that connects the vertically divided two parts forming the cylindrical case as it is, and the engaging member with the U-shaped cross section has mutually parallel A predetermined portion of the case is held between two parallel plates, and a plate-shaped locking spring is prevented from coming off by a retaining member when it comes into contact with one of the parallel plates, and is rotatable about the connecting member, so that when in use, At a predetermined position along the longitudinal direction of the car connector plug, the lock spring is engaged with a protrusion formed on the outer surface of the parallel plate around the through hole and an engaging part provided on the lock spring. The car connector plug is held in position with respect to the connector plug, and in this state, the holding portion of the lock spring is brought into contact with the inner surface of the large socket to hold the car connector plug at a predetermined position within the socket.

(Example) Next, an example of the present invention will be described with reference to the drawings.

1A and 1B are a side view and a plan view, respectively, showing a car connector plug holding structure according to an embodiment of the present invention, and FIG. 2 is a partially enlarged and partially cutaway side view showing the main parts thereof.

The car connector plug holding structure according to the embodiment of the present invention is comprised of vertically divided two parts forming a cylindrical case 10.
The connecting bolts 5 and nuts 6 as rod-shaped connecting members for connecting the divided bodies are used as they are, and the engaging member 12 having a U-shaped cross section has both parallel plates 1 that are parallel to each other.
4 and 15 (see FIG. 3) sandwich a predetermined portion of the case 10, abutting one of the parallel plates 14, and a plate-shaped locking spring 16 is rotatable about the coupling bolt 5. Cylindrical portion 2 of retaining member 20
0a is inserted into the through hole 17a provided in the lock spring 16 and the through hole 14a provided in one of the parallel plates 14, and the tip of the cylindrical portion 20a is inserted into the case 1.
A flange 20 formed at one end in contact with the outer surface of
b prevents the lock spring 16 from coming off;
When in use, the lock spring 16 is held at a predetermined position along the longitudinal direction of the car connector plug, and the parallel plate 1
The convex portions 14b, 14b formed on the outer surface around the through hole 14a of No. 4 are engaged with the slits 17b, 17c of the engaging portion 17 provided in the lock spring 16, and the lock spring 16 is positioned and held relative to the car connector plug. In this state, the holding part 18 of the lock spring 16 is brought into contact with the inner surface of the large socket 9 to hold the car connector plug in a predetermined position, and when the lock spring 16 is not needed, it can be moved to the position shown by the two-dot chain line. It is rotated and held at a predetermined position in a socket (not shown) by spring plates 3, 3 protruding from the outer periphery of the case 10, as in the conventional case.

The car connector plug includes a case 10 formed by connecting two vertically divided bodies with a connecting bolt 5 and a nut 6, a spring plate 3 attached to a predetermined location on the outside of the case 10, a head fitting 11, etc. ing. The case 10 includes a large diameter part 10a that is inserted into the socket 9, and a small diameter part 10c formed with a stepped part 10b interposed therebetween, and a small diameter part 10c that is located adjacent to the stepped part 10b that projects from the socket 9. Concave portions 10d are provided at two locations on the outside, and a hole 10e through which the coupling bolt 5 is inserted is provided concentrically with the concave portions 10d. When the car connector plug is inserted into the socket 9, it is held in place by the spring plate 3 for the smaller socket (not shown) and by the lock spring 16 and spring plate 3 for the larger socket 9, respectively. It is becoming more and more common.

FIG. 3 is an enlarged exploded perspective view of parts used in the car connector plug holding structure according to the embodiment of the present invention.

The nut 6 that is screwed onto the connecting bolt 5 has a round head 6a.
and a short rod-shaped protrusion 6b integrally protruding from the inner plane of the round head 6a, and a screw hole 6c to be screwed into the coupling bolt 5 is carved along the entire length,
The protrusion 6b is inserted into the through hole 15a of the parallel plate 15 and one of the recesses 10d of the case 10.

The engagement member 12 includes a base 13 having a U-shaped cross section and parallel plates 14 and 15 that are parallel to each other and are oriented perpendicularly to the base 13.
5 has a through hole 14 through which the coupling bolt 5 is inserted.
a, 15a, and convex portions 14b, 14 formed outwardly protruding at two locations facing each other on the outer surface near both parallel edges 14c around one of the through holes 14a.
b, and is arranged with both parallel plates 14 and 15 sandwiching a predetermined portion of the case 10. The engaging member 12 can sandwich the case 10 between the parallel plates 14 and 15 from either the left or right sides, as shown by the two-dot chain line in FIG. 1b.

The plate-shaped lock spring 16 is made of an elastic material, and has a through hole 17a through which the coupling bolt 5 is inserted, a cutout-like slit 17b formed at two places around the through hole 17a, and a notch-like slit 17b on the tip side facing the slit 17b. The engaging part 17 has a small elongated slit 17c provided at a position where
A bent portion 19 is formed by bending and protruding outward in a V-shape toward the terminal position of the spring plate 3.
In contrast, they are attached at positions spaced apart by an angle of 90 degrees on the outer circumference of the case 10. When the lock spring 16 is used in an imported car, the lock spring 16 is provided with a slit 17 in the convex portions 14b in a predetermined posture along the longitudinal direction of the large diameter portion 10a of the car connector plug.
b and slit 17c to be positioned and held relative to the car connector plug, and the holding portion 18
When inserted into the socket 9 with the tip of the connector plug in contact with the outer surface of the large diameter portion 10a, the outer surface of the holding portion 18 and the spring plate 3 contact the inner surface of the socket 9, releasing the car connector plug to the specified position. It is designed to be held freely.

The retaining member 20 includes a cylindrical portion 20a whose tip abuts against the bottom surface of the recess 10d of the case 10 and is inserted into the through hole 14a and the through hole 17a, and the cylindrical portion 2.
A flange 20b formed at one end of the 0a,
The lock spring 16 is attached to the inner end surface of the flange 20b.
The connecting bolt 5 is inserted into the center hole 20c so as to be in contact with the outer surface of the lock spring 16, and is attached to the lock spring 16 to prevent the lock spring 16 from coming off.

The dimension of the gap between the outer surface of the case 10 and the inner surface of the flange 20b is approximately equal to the sum of the thicknesses of the parallel plate 14 and the lock spring 16 that enter this gap and the heights of the protrusions 14b, 14b.
When the slits 17b, 17c of the engaging part 17 are in the position to engage with the convex parts 14b, 14b, they hold that position unless an external force is applied, and when an external force is applied, the engagement is released and rotated. It has become possible to do it freely.

Next, a method of using the car connector plug holding structure according to the above embodiment of the present invention will be explained.

When used in the cigarette lighter socket 9 of an imported car, the lock spring 16 is attached to the large diameter part 1 of the case 10.
The engaging portion 17 in a predetermined posture along the longitudinal direction of the 0a side.
slits 17b, 17c and convex portions 14b, 14b
When the lock spring 16 is inserted into the socket 9 with the lock spring itself positioned and held relative to the car connector plug, the lock spring 16 is inserted into the holding part 1.
The outer surface of 8 presses the inner surface of socket 9 with its elasticity together with spring plate 3 to hold the car connector plug in place. When used in the cigarette lighter socket of a domestic car, the locking spring 16 is rotated as shown by the two-dot chain line to hold the engaging portion 17 in a predetermined position along the longitudinal direction of the small diameter portion 10c of the case 10.
slits 17b, 17c and convex portions 14b, 14b
With the lock spring itself positioned and held relative to the car connector plug, the car connector plug is inserted into a socket of a domestic car (not shown), and the inner surface of the socket is pressed with the spring plate 3.
Hold the car connector plug in place.

Note that the car connector plug holding structure according to the present invention is not limited to the above embodiments.
A spring washer may be interposed between the retaining member 20 and the round head of the coupling bolt 5, a rivet may be used in place of the coupling bolt 5 and the nut 6, and various other modifications are possible.

(Effects of the invention) The present invention is constructed as described above, uses the conventional coupling member as is, and has the through holes in both parallel plates of the engagement member having a U-shaped cross section that sandwich a predetermined portion of the case. Equipped with a convex portion formed on the outer surface of the periphery,
A rotatable lock spring that is prevented from coming off by a retaining member engages with the convex portion at a predetermined position along the longitudinal direction of the car connector plug to position and hold the lock spring itself relative to the car connector plug. Since it has an engaging part and a holding part that holds the car connector plug by coming into contact with the inner surface of the socket, it can be used for both domestic and imported car sockets without any modification to the case. have an effect.

[Brief explanation of the drawing]

1a and 1b are a side view and a plan view, respectively, showing a car connector plug holding structure according to an embodiment of the present invention, FIG. 2 is an enlarged partially cutaway side view showing the main parts thereof, and FIG. 3 4 is an enlarged exploded perspective view of parts used in a car connector plug holding structure according to an embodiment of the present invention, and FIGS. FIG. 3... Spring plate, 5... Connection bolt, 6... Nut, 9... Socket, 10... Case, 10a...
...Large diameter part, 10b...Step part, 10c...Small diameter part, 10d...Concave part, 10e...Hole, 12...Engaging metal fitting, 13...Base, 14...Parallel plate, 14a
...Through hole, 14b...Protrusion, 15...Parallel plate,
16... Lock spring, 17... Engaging portion, 17a...
...Through hole, 17b, 17c...Slit, 18...
Holding part, 20... retaining member, 20a... cylindrical part, 20b... flange.

Claims (1)

[Scope of utility model registration request] A holding structure for a car connector plug including a cylindrical case formed by connecting two vertically divided bodies with a rod-shaped connecting member and having a spring plate protruding from the outer periphery of the case, wherein the holding structure includes a through hole through which the connecting member is inserted. an engaging member having a U-shaped cross section that sandwiches a predetermined portion of the case between the parallel plates; and a through hole through which the coupling member is inserted, and the coupling member rotates around the coupling member. A movable plate lock spring,
A retaining member is provided to prevent the lock spring from coming off, and both of the parallel plates include a convex portion formed on the outer surface around the through hole, and the lock spring extends along the longitudinal direction of the car connector plug. The lock spring has an engaging portion that engages with the convex portion at a predetermined position to position and hold the lock spring itself with respect to the car connector plug, and a holding portion that comes into contact with the inner surface of the socket and holds the car connector plug. Features a car connector plug retention structure.