JPH10228948A - Case incorporated coaxial connector seat - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a coaxial connector seat that has compatibility with an F type connector and can be simply and completely performed in its connecting work. SOLUTION: An introduction part 12a, a guiding part 12b *1 and a locking *2 part 12c are formed on a surface of the outer circumferential screw 11 of a coaxial F type connector seat fixed integrally to the case of objective equipment. The shape depth of a groove 12 shows an approximate letter J as a whole and its depth is the same as the of the screw 11 or deeper than the screw depth,. The introduction part 12a extends to a specific length from an end face of the screw 11 to an axial direction, the induction part 12b continues to the introduction part 12a and slopes at the specific angle of less than 90 deg. against the axial direction, and the locking 12c continues to the point of the guiding part 12b and is bent to the end face direction with respect to the axial direction.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a case-integrated coaxial connector seat, and more particularly to a coaxial connector seat that can be shared with an F-type connector.

[0002]

2. Description of the Related Art Various connectors are used to connect coaxial cables when handling high-frequency signals such as TV signals. Among them, F-type connectors are the most widespread in terms of price and the like, and a large number of F-type connectors are arranged and attached to a branching device and a distributor of a TV co-listening device.

[0003]

Since the F-type connector has a screw tightening structure, when a plurality of seats are arranged side by side, particularly when a connection operation is performed on a seat arranged inside, a plug side is provided. It is difficult to turn the ring and it is difficult to work. If the screws are not tight enough, a poor connection will result, and the ground side will float, causing noise to enter the signal line.

SUMMARY OF THE INVENTION The present invention has been made in view of the above points, and has as its object to provide a coaxial connector seat which is compatible with an F-type connector and can perform a connection operation more easily and reliably.

[0005]

In order to achieve the above-mentioned object, according to the present invention, an introduction portion, a guide portion and a locking portion are provided on an outer peripheral thread surface of a coaxial F-type connector seat integrally attached to a case of a target device. A groove having a depth substantially equal to or deeper than that of the screw as a whole and having a depth substantially equal to or deeper than the screw, the introduction portion extends a predetermined length in the axial direction from an end surface of the screw, and the guide portion is , Connected to the introduction portion and inclined at a predetermined angle of less than 90 degrees with respect to the axial direction, the locking portion,
The present invention provides a case-integrated coaxial connector seat which is connected to the tip of the guide portion and bent in the end face direction with respect to the axial direction. [Operation] The connector seat integrally attached to the equipment case is provided with a substantially J-shaped groove having a series of leading portions, guiding portions and locking portions on the screw surface. Is provided with a ring-shaped engaging portion with a locking piece that engages with this groove.

[0006] In order to connect the connector plug to the connector seat, a locking piece provided at an engaging portion of the connector plug is engaged with a groove of the connector seat. Then, when the connector plug is pushed in the axial direction, the locking piece of the connector plug is guided from the introduction portion of the groove of the connector seat to the locking portion along the guiding portion, and is locked to the locking portion. Shortly after the locking piece starts engaging in the groove, the pressing action of the elastic pressing member of the connector plug is continued after the locking, so that the locking piece of the connector plug moves the groove of the connector seat in the direction of the guiding portion. Never go back to

In order to remove the connector plug from the connector seat, the engaging portion is pushed in the axial direction of the connector seat and then turned in the direction opposite to the connection. Thereby, the locking piece of the connector plug comes off the locking portion in the groove of the connector seat, reaches the guiding portion, and further reaches the introduction portion. Therefore, the connector plug may be pulled out from the connector seat in the axial direction.

[0008]

FIG. 1 shows a state where a coaxial connector seat according to the present invention is integrally attached to a casing of a high-frequency device. This integral structure is generally formed by a die casting method. In FIG. 1, reference numeral 10 denotes a coaxial connector seat according to the present invention. The basic structure of the coaxial connector seat is a conventional F-type connector. A groove 12 having a shape substantially similar to the letter "J" is formed in a thread groove portion thereof. is there. A mark 13 is provided on the casing surface corresponding to the end position of the J-shaped groove. This mark 13
When the connector plug is inserted into the connector seat 10, it is for confirming that the connector is fixed at a correct fixing position.

FIGS. 2 (a) and 2 (b) show details of the J-shaped groove, which is used for inserting and fixing a connector plug along the axial direction of the connector. A pair of grooves is provided in the radial direction of the connector as shown in FIG.

A portion corresponding to the J-shaped vertical straight line is an introduction portion 12a, which engages with a small inward projection provided on the connector plug so as to advance in the axial direction of the connector seat. Things. In the drawing following the introduction section, a portion bent to the left is a guide portion 12b, which is connected to the locking portion 12c. The guiding portion 12b is for guiding a small protrusion inward of the connector plug from the introduction portion 12a to the locking portion 12c, and is inclined by about 75 degrees with respect to the axial direction of the connector. The locking portion 12c is bent upward in the drawing from the front end of the guiding portion 12b, that is, the lower end in the drawing, and the small projection of the connector plug is locked at the upper end.

FIG. 3 shows a longitudinal section of a threaded portion of the coaxial connector seat 10. The threaded portion of the conventional F-type connector is partially removed to be flat. This flat portion is the groove 12 shown in FIGS. 1 and 2, and as can be seen from the drawings, the height of the thread and the depth of the groove are the same. This is because the mechanical strength of the coaxial connector is not reduced, and the groove may be made deeper or shallower by taking measures such as increasing the mechanical strength with a material.

FIG. 4 shows a novel connector plug 20 connected to the connector seat 10 shown in FIGS. 1 to 3 as a longitudinal sectional view and an exploded view of parts. In FIG. 4, 2
Reference numeral 1 denotes a ring-shaped engaging portion, which has a cylindrical shape as a whole, and is provided with a pair of inwardly protruding protrusions near one end. This projection engages with the groove 12 (FIGS. 1 to 3) of the connector seat. The other end is swaged so as to hold the insertion member so as to be connected to a cable connecting portion 22 described later, and the outer periphery is turned and is rotated.

Reference numerals 23 to 26 denote insertion members, of which 23 is a retaining ring, 24 is a disc spring, and 25 is a split ring.
5, a chrysanthemum spring 26 is fitted on the left side. The ring-shaped engaging portion 21 can be moved in the axial direction with respect to the cable connecting portion 22 by the disc spring 24 and the chrysanthemum spring 26.

That is, in order to insert the connector plug 20 into the connector seat 10, the small projection 21 a provided at the end of the ring-shaped engaging portion 21 of the connector plug 20 is inserted into the introduction portion 12 a of the groove 12 of the connector seat 10. The connector plug 20 is pushed in the axial direction by engaging with the end. Next, the ring-shaped engaging portion 2
1 is rotated clockwise to move the small protrusion 21a from the introduction portion 12a of the groove 12 to the guide portion 12b. When the ring-shaped engaging portion 21 is further rotated, the springs 24 and 2
6, the small projections 21a move from the guide portions 12b to the locking portions 12c while compressing these springs.

Here, when the rotation operation of the ring-shaped engaging portion 21 is stopped, the connector plug 20 is separated from the connector seat 10 in the axial direction by the action of the springs 24 and 26, and the engaging portion 12c is stopped.
At the end of This engaged state is common to that of the BNC connector.

FIGS. 5 (a) and 5 (b) show a state in which the connector plug 20 is connected to the connector seat 10, which are different from each other in that the shape of the outer peripheral knurl of the ring-shaped engaging portion 21 is different. The interposed member is constituted only by a modification of the chrysanthemum spring 26 of FIG. 4, and has a basically common structure except that the disc spring 24 and the retaining rings 23 and 25 are not used.

The connector seat 10 is attached to a casing of a high-frequency device, and the connector plug 20 is connected to the connector seat 1.
Inserted at right angles to zero. A dashed line on the right side of the connector plug 20 indicates a coaxial cable. In FIG. 5, the coaxial connector is viewed from the lateral direction, and only one connector is illustrated. However, even if many connectors of this type are arranged side by side, the knurl 21b of the ring-shaped engaging portion 21 is rotated. It is easy to move and does not have insufficient tightening as in the case of the F-type connector.

[0018]

The connector seat of the present invention is integrally attached to the case of the target device, and has the same screw as the F-type connector and the groove as the connector seat according to the present invention having an alternative function of the screw. Therefore, a plug of an F-type connector can be connected, or a dedicated connector plug can be connected. In addition, since the connector seat is integral with the device case, it can be formed at the same time as the case is formed by the die casting method, and the connection operation can be performed reliably.
The structure of the connector seat is similar in some respects to that of the BNC connector, but is basically the same as that of the F-type connector, and is therefore advantageous in terms of manufacturing cost.

[Brief description of the drawings]

FIG. 1 is a view showing a state in which a case-integrated coaxial connector seat according to the present invention is attached to a casing of a high-frequency device.

FIG. 2 is a side view and a plan view showing the structure of the case-integrated coaxial connector seat of FIG. 1 in more detail.

FIG. 3 is a longitudinal sectional view of the coaxial connector seat integrated with the case.

FIG. 4 is an explanatory view of a coaxial connector plug combined with the case-integrated coaxial connector seat of the present invention.

FIG. 5 is a view showing a state in which a coaxial connector plug to be combined is connected to a coaxial connector seat integrated with a case according to the present invention.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 10 Coaxial connector seat 11 Screw 12 Groove 13 Mark 20 Coaxial connector plug 21 Ring-shaped engaging part 21a Small protrusion 21b Knurl 22 Coaxial cable connecting part 23,25 Stop ring 24,26 Spring

Claims (1)

[Claims] An overall threaded surface of a coaxial F-type connector seat, which is integrally attached to a case of a target device, has an introduction portion, a guiding portion, and a locking portion, and has a substantially J-shape as a whole. A groove having a depth substantially equal to or greater than the depth of the screw, the introduction portion extends a predetermined length in the axial direction from the end surface of the screw, and the guide portion is connected to the introduction portion and is formed with respect to the axial direction. The case-integrated coaxial connector seat, which is inclined at a predetermined angle of less than 90 degrees, and wherein the locking portion is connected to a tip of the guiding portion and bent toward the end surface with respect to the axial direction.