JPH0229661Y2 - - Google Patents

Description

[Detailed Description of the Invention] Industrial Application Field The present invention relates to an F-type connector for connecting coaxial cables.

BACKGROUND ART AND PROBLEMS Conventionally, an F-type connector (hereinafter simply referred to as a connector) as shown in FIG. 1 has been widely used as a connector for connecting coaxial cables. In the figure, one coaxial cable 1 is provided with a male plug 2, and the other coaxial cable 3 is provided with a female plug 4.
is provided. The male connector 2 has a central conductor 5 at the center of one end surface, and a tightening ring 7 having a screw 6 formed on its inner peripheral surface so as to be freely rotatable. The female plug 4 has a hole 8 provided in the center of one end surface, and a screw 9 provided on the outer peripheral surface.

When making a connection, insert the center conductor 5 of the male connector 2 into the hole 8 of the female connector 4, turn the ring 7 to engage the screws 6 and 9, and tighten the cable. 1 and cable 3 are connected.

In the conventional connector configured as described above, if vibration is applied while the connector is connected, the tightening of the ring 7 by the screw may loosen, and if this vibration continues for a long period of time, there is a risk that the connection will come off. For example, this type of connector is used to relay the coaxial cable connected to the antenna in an in-vehicle antenna attached to a moving object such as a car, but if the connector is suspended in the air, the screws will loosen due to the vibration of the car. Sometimes.

Purpose of the invention In view of the above-mentioned circumstances, it is an object of the present invention to provide an F-type connector that can obtain a stronger connection state.

Summary of the invention The present invention comprises a male connector having a cylindrical body surrounding a center conductor, a female connector having a hole on one end surface into which the center conductor is inserted, and a thread formed on the outer peripheral surface. a tightening ring having a threaded inner circumferential surface, the cylindrical body having a threaded outer circumferential surface, an unthreaded inner circumferential surface, and a plurality of axially provided slits; The female connector is fitted into the cylindrical body, the center conductor is inserted into the hole, and the screw of the female connector is brought into contact with the inner peripheral surface of the cylindrical body, and the screw of the tightening ring and The present invention relates to an F-type connector characterized in that it is adapted to be screwed together with the screw of the cylindrical body. By configuring like this,
A male connector and a female connector can be more firmly connected.

Embodiment In FIG. 2, a male plug 10 attached to a coaxial cable 1 is provided with a center conductor 11 at the center of one end surface thereof, and a cylindrical body 12 surrounding this center conductor 11. This cylindrical body 12 has a screw 13 formed on its outer peripheral surface, and
Four slits 14 are provided at equal intervals in the axial direction. Further, as shown in FIG. 3, the inner circumferential surface of the cylindrical body 12 is formed into a tapered surface 12a, and due to this tapered surface 12a, the inner diameter of the cylindrical body 12 becomes smaller toward the opening side. Furthermore, this tapered surface 1
No thread is formed in 2a. Also, the cylindrical body 12
A protrusion 15 is formed at the inner edge of the opening.

Female plug 16 attached to coaxial cable 3
A device having substantially the same structure as the conventional device shown in FIG. 1 is used. That is, the center conductor 11 is placed on one end surface.
A hole 17 into which the screw is inserted is provided, and a screw 18 is provided on the outer peripheral surface. Furthermore, a flange 19 is provided at a position closer to the other end. Note that the screw 18 is not formed until it reaches the flange 19. Also, male type connector 10 and female type connector 16
A tightening ring 20 is provided on the female connector 4 side for connection. A screw 21 is provided on the inner circumferential surface of the ring 20 and is screwed into the screw 13 provided on the male plug 10. Also ring 2
The diameter of the hole 22 is smaller than the diameter of the flange 19.

FIG. 4 shows a state in which the male connector 10 and the female connector 16 are tightened and connected by a ring 20.

Almost the entire female plug 16 is fitted into the cylindrical body 12, and the center conductor 11 is inserted into the hole 8. By turning the ring 20 to engage and tighten the screws 21 and 13, the ring 20 is locked by the housing 19 at the hole 22, and the male connector 10 is connected to the female connector via the ring 20. The plug 16 is integrally connected.

In the connection state shown in FIG. 4, the cylindrical body 12
The top of the thread 18 is in line contact with the tapered surface 12a of the female connector 1 for the cylindrical body 12.
The removal force of 6 can be increased. Further, the protrusion 15 is locked by the terminal end 18a of the screw 18, and the resiliency of the slit 14 in the center direction of the cylindrical body 12 makes it possible to further increase the removal force. Therefore, even if the ring 20 becomes loose due to vibration, the male connector 10 and the female connector 1
6 will never be disconnected.

Effects of the invention The removal force of the female connector against the cylindrical body of the male connector can be extremely increased, and the connection between the male connector and the female connector can be made stronger than the conventional F-type connector. can. Furthermore, since the conventional female connector can be used as is, the impedance does not change. Further, since only the male plug and the tightening ring need be improved, there is no increase in cost.

[Brief explanation of the drawing]

Fig. 1 is a perspective view of a conventional F-type connector, Fig. 2 is a perspective view showing an embodiment of the present invention, Fig. 3 is a side sectional view of a male connector, and Fig. 4 is a side sectional view showing the connected state. It is a diagram. In addition, in the symbols used in the drawings, 10...male connector, 11... center conductor, 12... cylindrical body, 1
3...Screw, 14...Slit, 16...Female connector, 18...Screw, 20...Tightening ring, 2
1...screw.

Claims (1)

[Scope of utility model registration request] A male connector has a cylindrical body that surrounds the center conductor, a female connector has a hole on one end surface into which the center conductor is inserted and a thread is formed on the outer circumferential surface, and a female connector has a thread on the inner circumferential surface. The cylindrical body has a threaded outer circumferential surface, an unthreaded inner circumferential surface, and a plurality of axially provided slits, and the cylindrical body has a threaded outer circumferential surface, an unthreaded inner circumferential surface, and a plurality of axially provided slits. The center conductor is fitted into the cylindrical body and inserted into the hole, and the screw of the female connector is brought into contact with the inner peripheral surface of the cylindrical body, and the screw of the tightening ring and the screw of the cylindrical body are brought into contact with each other. An F-type connector characterized by being screwed together.