JPH026648Y2 - - Google Patents

Description

[Detailed Description of the Invention] ``Purpose of the Invention'' The present invention relates to a rotating mechanism for a rod antenna, which simplifies the configuration and manufacturing assembly of the rotating mechanism in a rod antenna, reduces costs, and provides an appropriately stable holding function and rotational operation. Furthermore, the present invention aims to provide a product in which power feeding to the antenna can be simply and securely performed.

Industrial applications Rod antenna with rotation function.

BACKGROUND OF THE INVENTION Providing a rod antenna with a rotation function means changing the direction of the rod antenna with respect to the main body of the set as appropriate, and has been practiced to some extent in the past.
That is, a representative example of a conventionally known rotating mechanism for a rod antenna is as shown in FIGS. split groove part 3
5 and installed so that it can be raised and folded by the pivot 34,
The insertion part 37 protruding downward from the flange 36 of the rotating member 31 made of metal such as turned brass is inserted into the inner hole 38 which is a cylindrical part of the base body 32 which is also made of turned brass. The flange portion 3
6 and covers the upper part of the base body 32. The base body 32 has a mounting part 40 projecting downward to be attached to the set main body. Part 32 and rotating member 31
In order to obtain a rotation function between the base body 32 and the insertion portion 37, a cut 39 and a lateral groove 39a are formed in the portion of the base body 32 where the inner hole 38 is formed, thereby imparting elasticity to the portion. That is, by inserting the insertion portion 37 into this portion, the portion where the inner hole 38 is formed is appropriately opened, and the insertion portion 37 is pressed by the elastic force thereof to obtain a holding force. A rotating function is obtained in this part, and the covering tube 3
3 is covered and fixed by squeezing or caulking.

Regarding the configuration similar to these Figures 4 and 5, Utility Model Publication No. 53-47889, Utility Model Application No. 53-18617 (Utility Model Application No. 53-18617)
122755).

Problems to be Solved by the Invention However, in the conventional device as described above, processing and forming of the base body 32, which is a turned brass product, is not easy. That is, in the conventional antenna, power must be fed to the rod antenna through the base body 32, and therefore the base body 32
It is believed that the metal conductive member should be formed from a conductive brass member, but it is clear that processing such a metallic conductive member requires a very large number of man-hours. In addition, although such metallic conductive members have excellent elasticity, they do not necessarily have high frictional properties, so in order to obtain the desired holding force depending on the elasticity, it is necessary to It is necessary to adjust the elastic force under the formed dimensional conditions, and this adjustment operation is not easy. In other words, the dimensional accuracy of this adjustment cannot necessarily be obtained accurately through the above-mentioned processing or surface treatment (plating), and it is necessary to use lubricating oil depending on the material of each material. Cuts may occur. Therefore, if the holding force cannot be properly obtained depending on the error, the receiving direction of the antenna will not be maintained accurately.

``Structure of the invention'' Means for solving the problems The present invention was devised to solve the problems of the conventional ones as described above. In a rod antenna rotation mechanism in which a base body is assembled to a base body and is covered with a conductive covering tube so as to be rotatable, a fitting hole is formed at the bottom of the rotary body, and the base body is made of synthetic resin. At the same time, the base body is provided with a protrusion that fits into the fitting hole, and the protrusion has a split groove along the axial direction of the base body and a tapered protrusion that partially contacts the inner surface of the fit hole. forming strips,
A perforation is provided in each of the conductive covering tube and the base body, and an engaging portion and a locking protrusion are formed to determine the fitting position between the two, and the perforation is aligned with the lead wire terminal. This is a rotating mechanism for a rod antenna, which is characterized in that it is fixed with a mount.

Function: The base body, which is made of synthetic resin, and has a protrusion, grooves, or tapered protrusions can be easily molded and manufactured as an integral body.

The rod antenna is firmly connected to the groove in the metallic rotating body by a pivot, and can accurately perform the bending operation.

By forming a fitting hole in the bottom of the rotating body, and providing a protrusion on the base body that fits into the fitting hole, the base body is fitted and covered with a conductive covering tube,
A sufficient contact area is provided between the rotary member and the conductive covering tube to ensure complete electrical contact even under rotational conditions of the rotary member.

The rod antenna is connected by fitting the protrusion of the synthetic resin base body into a fitting hole formed at the bottom of the rotating body. A split groove is formed on the protruding seat part to give it elasticity, and a tapered protrusion is formed, so that it can be joined under effective elastic conditions, and even when the rotating body is rotated, even if it is made of synthetic resin material. The tapered protrusions allow partial friction bonding to provide smoothness. Assembling is extremely simple, just by fitting and including covering the covering tube.

By forming perforations in the conductive covering cylinder and the base body, respectively, and by forming an engaging portion and a locking protrusion that determine the fitting position between the two, the perforations are aligned, and with such perforations, Easy and accurate fixing with a lead wire terminal and a mount.

Embodiment A specific embodiment of the present invention as shown in the attached drawings will be described. As shown in FIGS. 1 and 2, a rotating member is used to attach a rod antenna 10 to a groove 11 so that it can be raised and lowered by a pivot 4. 1 is the same as the conventional one shown in FIGS. 4 and 5 described above, and the rotating member 1 is formed of a conductive member such as a metal. A stepped portion 13 that engages with the upper end of the covering tube 3 is formed on the outside of the intermediate portion of the rotating body 1, and a fitting hole 14 is formed in the bottom portion.
The base body 2 to be assembled to the rotating body 1 is molded from synthetic resin.
includes a protruding seat portion 24 that is fitted into the above-mentioned fitting hole 14.
At the same time, a split groove 22 is provided in the longitudinal direction on the protruding seat portion 24, and tapered protrusions 23 with a raised bottom are formed on both sides of the opening of the split groove 22. Holes 2a and 3a are formed in the bases of the body 2 and the covering tube 3, and as shown in FIG. 8 is also connected by the mount 6, and power is supplied to the rod antenna 10 via the cover tube 3 and the rotating body 1.

Note that by forming a locking protrusion 25 at the proximal end of the base body 2 and forming an engaging portion 3b that engages with the locking protrusion 25 on the covering tube 3, these two members can be easily connected. When fitted, the perforations 2a and 3a are arranged so that they match, and the tapered protrusion 23 is fitted and pressed into the fitting hole 14, thereby forming a connection between the rotating body 1 and the protruding seat 24. A predetermined frictional resistance is obtained between the two.

Regarding the cross-sectional shape of the above-mentioned protruding seat portion 24, see the third section.
As shown in the figure, one or more split grooves 22 can be provided, but in any case, the tapered protrusion 23
are formed on both sides of such a groove opening.

It is clear that the above-mentioned covering tube 3 is formed of a metal material as a conductive member, and is integrally connected by covering the rotating member 1 and the base member 2. Furthermore, if the hole 2a of the base body 2 is also covered with the covering tube and the mounting element 6 is inserted into the hole 3a and attached, the base body 2 made of synthetic resin is used.
is integrated with the covering tube 3, which is a metal material, and exhibits overall strength characteristics similar to that of a metal material.Therefore, the mounting with the mount 6 is extremely strong and stable, as shown in Figs. 4 and 5. This provides more stable attachment than with the attached attachment portion 40. Preferred synthetic resins for forming the base body 2 include nylon resins and polyacetal resins, but it is clear that the synthetic resins are not limited thereto.

``Effect of the invention'' According to the invention as described above, the base body 2 can be mass-produced and obtained from a synthetic resin material at a low cost.
Since the protrusion 24 is formed to fit into the fitting hole 14 formed on the bottom surface of the base plate, the assembly operation of these two parts is easy, and the groove 22 is formed in the protrusion 24. Since the tapered protrusion 23 is provided on the protruding seat part, the protruding seat part 24 is only partially joined in the fitting hole 14, and the rotating movement of the rotating body 1 is prevented. This makes it possible to achieve proper rotation without using oil or other lubricants, such as when fitting metal materials together, and the holding force is stable due to linear joints. , there is no need for squeezing or caulking, and the engagement part 3b and the locking protrusion 25 accurately match the perforation of the base body, making it possible to connect and install the lead wire terminal with the mount 6. It has the effect that it can be easily confirmed, including the above, and is a highly effective device in terms of practical production.

[Brief explanation of the drawing]

The drawings show the technical contents of the present invention, and Fig. 1 is a side view and a sectional view showing the disassembled state of the rotating mechanism forming member according to the present invention, and both sides of the base body are shown together. Fig. 2 is a cross-sectional view showing the assembled state, Fig. 3 is a cross-sectional view showing modified examples of the cross-sectional structure of the base body protrusion, and Fig. 4 is a side view showing the assembled state of the conventional one. FIG. 5 is a perspective view showing the disassembled state. However, in these drawings, 1 is a rotating body,
2 is a synthetic resin base body, 2a is its perforation, 3
3a is the covering tube, 3a is the perforation, 3b is the engaging portion, 6 is the mount, 11 is the groove, 13 is the step, 14 is the fitting hole, 22 is the split groove, 23 is the tapered protrusion, and 24 is the protrusion. 25 indicates a locking protrusion.

Claims (1)

[Scope of utility model registration request] In a rod antenna rotation mechanism in which a base body is assembled to a rotary body on which a rod antenna is attached so that it can be bent at a pivot, and the base body is covered with a conductive covering tube so as to be rotatable, the rod antenna is fitted to the bottom of the rotary body. form a hole,
The base body is formed of a synthetic resin, and the base body is provided with a protruding seat part that fits into the fitting hole, and the protruding seat part is provided with a groove that is aligned in the axial direction of the base body body and the fitting hole. A tapered protrusion is formed that partially contacts the inner surface of the hole, and a perforation is provided in each of the conductive covering tube and the base body, and an engaging part and a locking protrusion are provided to determine the fitting position between the two. A rotating mechanism for a rod antenna, characterized in that the rod antenna is fixed by a mounting element through the perforation formed therein and aligned with the lead wire terminal.