JP3046029U - Jack cover cap - Google Patents

Abstract

(57) [Summary] [PROBLEMS] To ensure the durability of a jack by making it difficult for a cover cap to come off. SOLUTION: A cover cap body 2 having flexibility is exposed from an end of a jack 4 having a connection hole 7 into which a connection terminal of a plug is inserted, and covers a cylindrical shield case 6. A shaft projection 3 for preventing disengagement is protruded from the bottom inside the cover cap main body toward the opening, and can be inserted into the connection hole 7 of the shield case. Elastic contact piece 8.

Description

[Detailed description of the invention]

[0001]

[Technical field to which the invention belongs]

 The present invention mainly relates to a jack cover cap for covering an end of a jack used when connecting an antenna of a vehicle and a communication device such as a radio via a coaxial cable.

[0002]

[Prior art]

 Conventionally, for example, when a car radio and an antenna are connected by a coaxial cable, a connector is provided at an appropriate position of the coaxial cable. This connector has a structure including a plug and a jack. In the conventional jack, a connection hole is provided in the shaft center portion of the shield case exposed from one end, and a contact piece made of a spring body is disposed in the connection hole in a cylindrical shape. One end of a coaxial cable is connected to the portion by soldering, and a pin-like connection terminal of a plug is inserted into a connection hole to be electrically connected to the contact piece. If the jack is not used, a synthetic resin cover cap may be placed on the end of the jack to prevent dust, and the plug may be removed by removing it when in use.

[0003]

[Problems to be solved by the invention]

 According to the conventional cover cap, when used in a car, the cap often loosens over time due to vibration and comes off, often causing the shield case to come into contact with the chassis and short-circuit. was there. The purpose of this invention is to make the cover cap hard to come off and to ensure the durability of the jack.

[0004]

[Means for Solving the Problems]

 The first feature of the jack cover cap according to the present invention consists of a flexible cover cap body integrally formed of a synthetic resin material and a detachable shaft projection. The plug is detachably attached to an end of a jack having a connection hole into which a connection terminal of a plug is inserted, and covers the end. The detachment-preventing shaft projection is opened from the bottom inside the cover cap body. In the connecting hole so as to be inserted into and removed from the connection hole. A second feature of the jack cover cap according to the present invention has the above feature, and the end of the jack is constituted by a shield case projecting from the end of the jack body. Is that it can be elastically contacted with a resilient contact piece disposed in a cylindrical shape on the inner periphery of the connection hole. The third feature of the jack cover cap according to the present invention has the first feature, in which a bulging portion is formed at a position corresponding to the detachable axial projection of the head of the cover cap body, The end of the jack is formed of a shield case projecting from the end of the jack body, and the detachable shaft-like projection is resiliently connected to a resilient contact piece disposed in a cylindrical shape on the inner periphery of the connection hole. It is accessible. The fourth feature of the jack cover cap according to the present invention has the first feature, and the end of the jack is constituted by the end of the jack main body. The elastic contact piece which is arranged in a cylindrical shape on the inner periphery of the hole is elastically contactable.

[0005]

[Action]

 In order to cover the end of the jack, the cover cap body protects the entire end of the jack from dust and the shaft projection for preventing the upper part from separating closes the connection hole of the shield case. The cover cap has a double dustproof structure with the shaft projection and the cover cap comes in contact with the jack at two points, the body and the shaft projection, increasing the frictional resistance. The effect is that the condition is stable and it is hard to come off.

[0006]

[Embodiment of the invention]

 1 to 3, a cover cap 1 includes a cover cap body 2 and a detachable axial protrusion 3. The cover cap body 2 is made of a synthetic resin material such as vinyl chloride and has flexibility. The cover cap body 2 protrudes from the body 5 of the jack 4, constitutes one end of the jack, and covers the shield case 6 formed in a tubular shape by a conductive member, and is detachably fitted on the shield case 6. It is something. The axial protrusion 3 protrudes from the inner bottom of the cover cap body 2 toward the opening, and is arranged at the axis of the cover cap body. As shown in FIG. 3, the axial projection 3 can be inserted into and removed from the connection hole 7 in the axial center of the shield case 6. The shaft-shaped projection 3 can be elastically contacted with a spring-like contact piece 8 formed of a spring member arranged in a cylindrical shape on the inner periphery of the connection hole 7. By contacting the contact piece 8 as shown in FIG. 3, the axial projection 3 can reliably prevent dust in the connection hole and oxidation (corrosion) of the surface of the contact piece. The connection terminal of the plug is removably inserted into the connection hole 7, and the connection terminal is in elastic contact with the contact piece 8 of the connection hole when it is inserted therein.

The cover cap 11 shown in FIG. 4 has substantially the same configuration as the cover cap 1, but differs from the cover cap 1 shown in FIG. 1 in that the cap body 12 is attached to one end of the jack body 5. That is, the end of the main body is detachably covered. In FIG. 4, the end of the jack 4 is constituted by the end of the jack body 5 including the shield case 6. Since the cap body 12 covers the end of the jack body 5, the shield case 6 can be reliably protected from dust.

In the cover caps 1 and 11 shown in FIGS. 1 and 4, bulges 2 a and 12 a are formed at positions corresponding to the axial protrusions 3 and 13 for preventing the heads of the cover cap bodies 2 and 12 from being separated. Have been. By providing the bulging portions 2a, 12a, the axial projections 3, 13 can be easily pushed into the connection holes 7, and the heads of the cover cap bodies 2, 12 can be reinforced. Of course, the bulging portions 2a, 12a may not be provided on the cover cap bodies 2, 12.

[0009]

[Effects of the Invention] According to the invention, the cover cap is provided with an axial projection for preventing detachment, and is inserted into the connection hole of the jack for use. It is hard to come off. The entire end of the jack is covered by the cover cap body, and the shaft projection for preventing disengagement is inserted into the connection hole to resiliently contact the contact piece. Nature can be secured. By providing the bulging portion on the head of the cover cap main body, it becomes easy to push the axial projection into the connection hole.

[Brief description of the drawings]

FIG. 1 is a sectional view showing an embodiment of the present invention.

FIG. 2 is a cross-sectional view of FIG. 1A-A.

FIG. 3 is a partially cutaway front view showing a use state.

FIG. 4 is a sectional view showing another embodiment of the present invention.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Cover cap 2 Cover cap main body 2a Swelling part 3 Detachment prevention axial projection 4 Jack 5 Jack main body 6 Shield case 7 Connection hole 8 Contact piece 11 Cover cap 12 Cover cap main body 12a Swelling part 13 Detachment prevention axial projection

Claims (4)

[Utility model registration claims] The cover cap body includes a flexible cover cap main body and a detachable shaft-like projection, and the cover cap main body has an end of a jack having a connection hole into which a connection terminal of a plug is inserted. The detachable shaft protrusion is detachably attached to the portion and covers the end portion. The detachment-preventing shaft-shaped projection is projected from an inner bottom portion of the cover cap main body toward an opening, and can be inserted into and removed from the connection hole. A cover cap for a jack, characterized in that: 2. An end of the jack is constituted by a shield case projecting from an end of the jack body, and a detachable shaft-like projection is formed by a spring-like contact piece disposed in a cylindrical shape on an inner periphery of the connection hole. 2. The jack cover cap according to claim 1, wherein the jack cover cap can be elastically contacted. 3. A swelling portion is formed at a position corresponding to the detachable shaft protrusion of the head of the cover cap body, and the end of the jack is a shield case projecting from the end of the jack body. The jack cover cap according to claim 1, wherein the detachable shaft protrusion is configured to be elastically contactable with a spring-like contact piece disposed in a cylindrical shape on the inner periphery of the connection hole. 4. An end portion of the jack is constituted by an end portion of the jack body, and a detachable shaft-like projection can be elastically contacted with a spring-like contact piece disposed in a cylindrical shape on the inner periphery of the connection hole. 2. The jack cover cap according to claim 1, wherein: