JPH0613205U - Fixing structure of BS antenna device to pole - Google Patents

Abstract

(57) [Abstract] [Purpose] The present invention relates to a structure of a pole fixing portion of a BS antenna, and resin is used as a main structural material of the fixing portion to prevent generation of rust generated in a conventional metal object. The purpose is to provide a structure that [Structure] The fixing portion 4 for fixing the BS antenna 10 to the pole 5 is made of resin, and the metal fitting 9 is inserted into the pole contact portion of the fixing portion 4 to reduce the exposure of the metal portion and increase the pole fixing strength. The effect of preventing damage to the appearance due to rust can be obtained without reducing

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a structure in which a BS antenna device that receives radio waves from a satellite is attached to a pole.

[0002]

[Prior art]

 In recent years, due to the spread of satellite broadcasting, small BS antennas that can be installed in ordinary households are commercially available. These are introduced in, for example, the BS reception know-how published by the TV reception improvement committee. Generally, the BS antenna is attached and fixed to a metal pole separately attached to a house or the like. Fig. 4 shows an example of the structure for attaching the BS antenna to the pole introduced in the above document. In FIG. 4, the BS antenna device 10 includes a reflector 1 that reflects radio waves from a satellite, a low noise block converter (LNB) 2 that receives the reflected radio waves, an arm 3 that positions the reflectors 1 and LNB 2, and a reflector 1. The LNB 2 and the arm 3 are composed of a pole fixing portion 4 for fixing the arm 5 to the pole 5. The pole fixing part consists of 4a attached to the arm and 4b facing each other with the pole in between, and 4a has a screw hole 6 and 4b has a through hole 7, and a screw 8 passing through the hole 7 allows the pole to be fixed. The BS antenna device 10 is fixed to the pole 5 by fastening the fixing portion 4 to the pole.

[0003]

[Problems to be solved by the device]

 However, in such a conventional example, since the pole fixing portion is entirely made of metal, there is a problem that rust is generated when it is installed outdoors, and the strength is deteriorated and the appearance is impaired. To prevent the rust, it may be possible to perform a special plating treatment or to use a material in which the rust is not conspicuous, but both of them have a problem of increasing the cost. In addition, it is difficult to realize a complicated shape due to processing, and there is a drawback that the design is uniform. In contrast to the above, it is possible to use a resin material as another means, but there was a problem that the strength was insufficient.

The present invention solves the above problems, and an object of the present invention is to provide an inexpensive pole mounting structure for a BS antenna device, which does not have a decrease in strength due to metal rust or damage to its appearance.

[0005]

[Means for Solving the Problems]

 In the present invention, in order to achieve the above object, the pole fixing portion is made of resin, and the metal part is inserted only in the portion which directly contacts the pole.

[0006]

[Action]

 According to the present invention, most of the pole fixing portion is made of resin, and metal parts are inserted so that there is no exposed portion to the outside in the portion that contacts the pole and needs strength. It does not require any special rust prevention treatment, can prevent rust from occurring on the pole fixing part, and prevent damage to the appearance after outdoor installation. In addition, it is possible to prevent the strength from decreasing due to the use of the resin material. Furthermore, it is also possible to design using the characteristics of resin molding.

[0007]

【Example】

 An embodiment of the present invention will be described below with reference to FIGS.

In FIG. 1, a BS antenna 10 includes a reflector 1 that reflects radio waves from a satellite, a low noise block converter (LNB) 2 that receives the reflected radio waves, an arm 3 that positions the reflectors 1 and LNB 2, It is composed of a reflector 1, an LNB 2 and a pole fixing part for attaching and fixing the arm 3 to the pole 5. Further, the pole fixing portion is composed of a pole fixing portion half body 4a attached to the arm and a pole fixing portion half body 4b surrounding the pole. A U-shaped through hole 11 is provided in the pole fixing portion half body 4a, and a metal fitting 9a having a similar cross section is inserted therein. As shown in the figure, the metal fitting 9a is exposed only at the end face. Further, a metal fitting 9b similar to the metal fitting 9a is attached to the pole fixing portion half body 4b. The metal fittings 9a and 9b are provided with a screw hole 6 and a through hole 7, respectively. The BS antenna device 10 is fixed to the pole 5 by tightening the fixture 9 attached to the pole fixing portion 4 with the screw 8. FIG. 2 shows an example of the metal fitting 9a. As shown in FIG. 2, the metal fitting 9a has a U-shaped cross section, and the dimension h of the opening is slightly larger than the dimension of the hole 11 of the fixing portion 4a to be inserted. Due to this dimensional relationship, that is, the interference, the metal fitting 9a is always press-fitted and fixed to the fixed portion 4a, and rattling between the metal fitting 9a and the fixed portion half body 4a is prevented. Further, the metal fitting 9a has a stepped notch at the center thereof, and when tightened by the screw 8, the notch bites into the pole 5 to generate a strong fixing force. FIG. 3 is a top view of the BS antenna 10 of FIG. 1 fixed to the pole 5. As shown in FIG. 3, since the fixing portion 4 made of resin does not come into direct contact with the pole 5, the deformation due to the tightening of the screw 8 does not occur.

As described above, in the embodiment of the present invention, most of the pole fixing portion can be made of resin that does not cause rust, and the fixing strength can be the same as that of the conventional example.

[0010]

[Effect of device]

 As is clear from the above embodiments, according to the present invention, the pole fixing portion of the BS antenna can be made of resin, which is inexpensive, has no damage to the outer appearance due to rust, and has the same pole fixing strength as the conventional example. It is possible to provide the BS antenna pole mounting structure that can be obtained.

[Submission date] March 10, 1993

[Procedure Amendment 2]

[Document name to be amended] Statement

[Correction target item name] 0008

[Correction method] Change

[Correction content]

In FIG. 1, a BS antenna 10 includes a reflector 1 that reflects radio waves from a satellite, a low noise block converter (LNB) 2 that receives the reflected radio waves, an arm 3 that positions the reflectors 1 and LNB 2, and a reflector 1. And a pole fixing part for attaching and fixing the LNB 2 and the arm 3 to the pole 5. Further, the pole fixing portion is composed of a pole fixing portion half body 4a attached to the arm and a pole fixing portion half body 4b sandwiching the pole. Each halves 4a, respectively grooves 12a correspond to the longitudinal direction (axial direction) of the port Lumpur 5 on the opposite side of the 4b, and a 12b. Further, a U-shaped through hole 11 is provided in the pole fixing portion half body 4a, and a metal fitting 9a having a similar cross section is press-fitted in a direction orthogonal to the groove 12a . As shown in the figure, only the end surface of the metal fitting 9a is exposed. Further, a metal fitting 9b similar to the metal fitting 9a is mounted on the pole fixing portion half body 4b in a direction orthogonal to the concave groove 12b . The metal fittings 9a and 9b are provided with screw holes 6 and through holes 7, respectively. The BS antenna device 10 is fixed to the pole 5 by tightening the fixture 9 attached to the pole fixing portion 4 with the screw 8. FIG. 2 shows an example of the metal fitting 9a. As shown in FIG. 2, the metal fitting 9a has a U-shaped cross section, and the dimension h of the opening is slightly larger than the dimension of the hole 11 of the fixing portion 4a to be inserted. Due to this dimensional relationship, that is, the interference, the metal fitting 9a is always in a state of being press-fitted and fixed to the fixed portion 4a, and rattling between the metal fitting 9a and the fixed portion half body 4a is prevented. Further, there is a stepped notch recess in the center of the metal fitting 9a, and when tightened by the screw 8, the notch bites into the pole 5 and generates a strong fixing force. FIG. 3 is a top view of the BS antenna 10 of FIG. 1 fixed to the pole 5. As shown in FIG. 3, since the fixing portion 4 made of resin does not come into direct contact with the pole 5, the deformation due to the tightening of the screw 8 does not occur.

[Brief description of drawings]

FIG. 1 is a perspective view of a BS antenna device according to an embodiment of the present invention.

FIG. 2 is a perspective view of a metal fitting used in an embodiment of the present invention.

FIG. 3 is a top view of a BS antenna device with a pole attached according to an embodiment of the present invention.

FIG. 4 is a perspective view of a conventional BS antenna device.

[Explanation of symbols]

 1 Reflector 2 Low Noise Block Converter 3 Arm 4a 4b Pole Fixed Part Half 5 Pole 6 Screw Hole 7 Screw Through Hole 8 Screw 9a 9b Metal Fitting 10 BS Antenna Device 11 Metal Fitting Insertion Hole

[Procedure amendment]

[Submission date] March 10, 1993

[Procedure Amendment 1]

[Document name to be amended] Statement

[Name of item to be corrected] Claim 1

[Correction method] Change

[Correction content]

[Procedure 3]

[Document name to be corrected] Drawing

[Name of item to be corrected] Figure 1

[Correction method] Change

[Correction content]

[Figure 1]

[Procedure amendment 4]

[Document name to be corrected] Drawing

[Name of item to be corrected] Figure 3

[Correction method] Change

[Correction content]

[Figure 3]

 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Mamoru Nomoto Mamoru Nomoto 1006 Kadoma, Kadoma City, Osaka Prefecture Matsushita Electric Industrial Co., Ltd.

Claims (1)

[Scope of utility model registration request] 1. A pole fixing part to which a BS antenna device is attached comprises a pair of resin halves, each of which has a groove on the facing surface side and a U-shaped cross section in a direction orthogonal to the groove. A structure for fixing a BS antenna device to a pole, characterized in that a metal fitting is fitted, and the pole is held by way of a stepped notched recess provided in the metal fitting.