JPH05226037A - Connector for cigar lighter - Google Patents

Abstract

PURPOSE:To make a connector usable for a cigar lighter socket of any automobiles by installing an outer diameter controllable means in a connector part and controlling the outer diameter of a connector for a cigar lighter. CONSTITUTION:A cord 2 to be connected with a product mounted on any kinds of automobiles is installed in a connector part 1 to be inserted in a socket of an automobiles and the end part is used, for example, as a DIN electric power source. On the opposite side of the cord 2, a plus electrode 3 is installed and minus electrodes 4A and 4B made of a pair of elastic plate springs are located in the outer circumference of the connector 1 and set opposite to each other. One end part of the minus electrode 4A is fixed by a fitting 6A and an outer diameter controllable screw 5A is installed between the tip part 7A of the other end and the fitting 6A and the electrode 4B is slid in the longitudinal direction based on the fastening degree of the screw. The structure of the electrode 4A is also made like this and the electrodes 4A, 4B are expanded outward by an outer diameter controllable screw 5B installed in it and the above mentioned 5A.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a cigarette lighter connector that serves as a terminal for supplying power to an in-vehicle product.

[0002]

2. Description of the Related Art Recently, along with the development of the bicycle industry, the quality of in-vehicle products has been improved, and at the same time, the types of products have become considerably rich. For example, TV receiver, CD player,
A fairly convenient product such as a vacuum cleaner or a light can be used in a car by supplying power from a cigarette lighter.

[0003]

However, even if one wishes to use various in-vehicle products, the same in-vehicle product is used as it is in an automobile of another manufacturer because the inner diameter of the socket varies depending on the automobile manufacturer. In this case, for example, if the outer diameter of the cigarette lighter connector is smaller than the socket of the automobile, sometimes the contact may fail and power may not be supplied, or vice versa. If it is larger, it cannot be used, or it is forced into place and the socket is destroyed.

[0004]

SUMMARY OF THE INVENTION The present invention has been made to solve the above problems, and has an outer diameter of a connector portion of a cigarette lighter of an in-vehicle product which is different from the outer diameter of the connector portion. The connector part is provided with an outer diameter varying means for accommodating a cigarette lighter socket.
Also, the outer diameter varying means can be realized so as to accommodate a larger inner diameter or a smaller inner diameter.

[0005]

[Function] Since the outer diameter of the connector part of the cigarette lighter connector can be changed by the outer diameter varying means, it can be attached to the cigarette lighter connector socket of any automobile manufacturer. It can be used in a car, and can be used as it is when the car is changed.

[0006]

1 is a perspective view of a cigar lighter connector showing a first embodiment of the present invention. In this figure, 1 is a connector portion to be inserted into a socket in an automobile, 2 is a cord connected to various in-vehicle products, and an end portion thereof is, for example, D
It can be an IN power supply terminal. 3 is a positive electrode, 4
A and 4B are minus electrodes made of a pair of elastic leaf springs, 5A is an outer diameter adjusting screw, and 6A is a stopper for the minus electrodes 4A. In addition, the stopper 6A with the negative electrode 4A
The tip portion 7A on the opposite side of is slid in the length direction of the negative electrode depending on the tightness of the outer diameter adjusting screw.

FIG. 2 shows an example of use of the cigar lighter connector of this embodiment. In the figure, the same reference numerals as in FIG. 1 denote the same parts. When the inner diameter of the socket in the currently used vehicle is substantially the same as the outer diameter dimension d of the cigarette lighter shown in FIG. 2 (A), it has a smaller inner diameter in other vehicles. When the cigar lighter connector of this embodiment is used in the socket, it is shown in FIG.
As shown in (B), the outer diameter adjustment screws 5A, 5B can be tightened to reduce the outer diameter dimension d, and the socket can be inserted by making it substantially coincide with the inner diameter of the socket. Further, for example, when the cigar lighter connector of this embodiment is used in a socket for a larger inner diameter cigarette lighter, by loosening each outer diameter adjusting screw 5 as shown in FIG. The outer diameter dimension d can be increased to substantially match the inner diameter of the socket, and the socket can be inserted without loosening.

Next, a second embodiment will be described. FIG. 3 is a perspective view of the cigar lighter connector of this embodiment. 1
1 is a connector part to be inserted into a socket in an automobile, 12
Is a cord connected to various in-vehicle products, 13 is a positive electrode, 14A and 14B are negative electrodes made of a pair of elastic leaf springs, 15 is an outer diameter adjusting knob formed in a ring shape, and 16A is The outer diameter adjusting knob 15 has a ring-shaped slit inserted through the negative electrode 14A, 17 is a screw groove spirally cut on the outer peripheral surface of the connector portion, and 18A is a stopper for the negative electrode 14A. In addition, the tip 19 on the opposite side of the stopper at the negative electrode 14A
The portion A is adapted to slide in the length direction of the negative electrode depending on the position of the outer diameter adjusting knob 15.

FIG. 4 is a front view of the outer diameter adjusting knob 15 which is inserted into the connector portion 11. Inside the outer diameter adjusting knob, two screw protrusions t are provided so as to be fitted in the screw grooves 17 provided in the connector portion 11 described above.

FIG. 5 shows an example of use of the cigarette lighter connector of the second embodiment. In the figure, the same reference numerals as in FIG. 3 denote the same parts. When the outer diameter dimension d of the cigar lighter connector shown in FIG. 5 (A) is used in a socket having a narrower inner diameter, the outer diameter adjusting knob 15 is turned in the direction of the arrow so that the screw protrusion t shown in FIG. Sliding on the inside of the screw groove 17 spirally provided on the connector portion 11 moves the outer diameter adjusting knob 15 to the left side as shown in FIG. Each negative electrode 14 inserted in the slits 16A, 16B of
A and 14B can be pressed down to the connector side, and the outer diameter dimension d can be narrowed. Also, FIG.
As shown in (C), the outer diameter adjustment knob 15 is shown in (B).
When turned in the opposite direction to the case of 5b, each negative electrode 14A,
Since 14B is raised by its own elasticity, the outermost diameter dimension d is widened, and it is possible to deal with a socket having a wide inner diameter.

[0011]

As described above, since the cigar lighter connector of the present invention is provided with the outer diameter varying means, the outer diameter can be adjusted according to the socket to be inserted. , For example, by responding to the difference in the inner diameter of the cigarette lighter socket due to the difference in vehicle type and manufacturer, it is possible to avoid troubles such as difficulty of insertion and connection failure due to mismatch of inner and outer diameters.
The advantage is that one cigarette lighter connector can be used in any car socket.

[Brief description of drawings]

FIG. 1 is a perspective view of a cigar lighter connector according to a first embodiment of the present invention.

FIG. 2 is a diagram showing an example of use of the cigar lighter connector of the first embodiment of the present invention.

FIG. 3 is a perspective view of a cigar lighter connector according to a second embodiment of the present invention.

4 is a front view of an outer diameter adjusting knob 15 of FIG.

FIG. 5 is a diagram showing an example of use of a connector for a cigarette lighter according to a second embodiment of the present invention.

[Explanation of symbols]

 4A; 14A Negative electrode 5A Outer diameter adjusting screw 15A Outer diameter adjusting knob d Outer diameter dimension

Claims (1)

[Claims] 1. A cigarette lighter connector, which serves as a terminal for supplying power to an on-vehicle product, is provided with an outer diameter varying means at an insertion portion of the cigarette lighter socket, and can be connected to various cigarette lighter sockets having different inner diameters. A connector for a cigarette lighter characterized by being configured as follows.