JPH0727684Y2 - Primary radiator for satellite broadcasting - Google Patents

Description

[Detailed Description of the Invention] [Industrial field of application] The present invention relates to a watertight structure and appearance on the primary horn side of a satellite broadcast receiving primary radiator in which a primary horn for a satellite broadcast receiving antenna and a converter are integrated. It is a thing.

[Conventional technology]

The horn-integrated converter is, for example, as shown in FIG. 9 and FIG. 10, capped the horn protrusion 52 in order to secure the watertightness of the primary horn 53 that appears at the tip of the horn protrusion 52 protruding from the front surface of the main body 51. I am wearing 54. Figures 11 and 12
In the case shown in the figure, when the cap 59 is fitted to the horn protrusion 58 with the pedestal 57 protruding to the front surface of the main body 56, the seat 62 of the cap 59 is brought into contact with the pedestal 57 by the annular edge 61 of the cap retaining ring 60. The cap retaining ring 60 from the side of the pedestal 57
I was stuck in 63.

[Problems to be solved by the device]

However, in the cap mounting structure as described above, the caps 54 and 59 may be removed by the user,
At that time, if the waterproof function, the adjusting function, etc. are impaired, the regular performance of the product may not be exhibited. In contrast,
In order to prevent the cap from being removed by the user, a post in which the post provided on the cap is mounted in the mounting groove of the horn antenna and fixed with an adhesive (Shokaisho 61-35405) has been proposed. However, this requires the work of fixing with an inefficient adhesive agent, and furthermore, the adhesive agent is exposed to the outside, so that there is a disadvantage that the appearance is impaired.

Therefore, it is an object of the present invention to provide a primary radiator for satellite broadcast reception that can remove the cap by a simple means and improve the appearance of the horn protruding portion side.

[Means for Solving the Problems]

According to the primary radiator for satellite broadcasting reception of the present invention, in a horn-integrated converter in which a cap is attached to the horn protrusion of the main body, the protrusion is provided at the base end of the cap attachment of the horn protrusion, and the cap attachment is provided. The cap is attached to the cap attached to the main body by a hole and is in contact with the main body to cover the horn protruding portion side of the main body. An exterior body consisting of a locking projection that abuts on the back surface of the projection is provided, and the exterior body and the cap are prevented from being removed from the main body by fitting the exterior body into the cap at the hole and contacting the main body. It is characterized by.

The protrusion is a flange, and the outer diameter of the flange and the outer diameter of the cap are made substantially equal to each other, and a locking protrusion is provided on the inner cylindrical portion forming the hole of the lid, or the cap mounting portion. It is also possible to provide a pedestal at the base end of the pedestal, provide a projection on a part of the pedestal, and project a locking projection corresponding to the projection in the middle of the back surface of the lid.

The cap attachment portion of the horn protrusion may be a screw portion.

[Action]

When the outer casings 20, 20 'fitted in the holes 30 in the caps 16 attached to the horn protrusions 4, 35 are brought into contact with the body portions 1, 1', the horn protrusions 4, 35 side of the body portion are covered by the casing body 20, It is covered by 20 ', and the claws 2 of the locking projections 23, 23' of the outer casing 20, 20 'are covered.
6, 26 'engage with the back surface 27, 27' of the projection 29, 36. Therefore, even if the outer casing 20, 20 'is pulled in the direction of the horn axis or in the direction intersecting the horn axis, it cannot be removed from the main body 1, 1', and the locking projections 23, 23 'are covered. The claws 26, 26 'that engage with the projections 29, 36 cannot be removed from the outside because they are located inside the parts 21, 21' and do not appear outside. Therefore, the cap 16 whose outer peripheral portion is surrounded by the hole 30 of the outer casing 20, 20 'cannot be removed from the main body 1, 1'by grasping it.

〔Example〕

An embodiment of the present invention will be described with reference to the drawings. 1 to 4, the main body 1 is a waveguide in which a horn protrusion 4 with a pedestal 3 is projectingly provided on the front surface of a circular collar portion 2 and a waveguide 5 or the like is formed on the rear surface of the collar portion 2. A chassis 7 formed by projecting a pipe portion 6
And the flange portion 2 at the opening end of the concave portion 9 for accommodating the waveguide portion 6.
A converter case 8 for abutting against and attaching the chassis 7 integrally with a Phillips screw 10. A frequency conversion circuit (not shown) and other electronic circuit parts are incorporated in the recess 9 and the lower mounting arm is attached. At 11, it is attached to the reflecting mirror via a mounting bracket, support rod, etc.

A part of the primary horn 15 is formed on the inner side of the horn protruding portion 4, and a screw portion 17 for screwing the cap 16 onto the outer peripheral surface is formed. The circular pedestal 3 has an outer peripheral surface 18 as an exterior body.
A notch groove 25 for guiding the inner peripheral surface 22 of the outer cylindrical portion of the lid portion 21 of the outer peripheral portion 20 of each of the outer cylinders 20 and a notch groove 25 for loosely fitting the middle of the retaining projections 23 of the outer casing 20 to the outer peripheral surface 4 divided portions, and the retaining projections 23. A back surface 27 with which the claw portion 26 at the tip abuts and a recess 28 into which the claw portion 26 is loosely fitted form a protrusion 29 that prevents the locking protrusion 23 from coming off.

The outer casing 20 made of synthetic resin has a lid portion 21 in which the outer diameter is adjusted to the outer diameter of the collar portion 2 and a hole portion 30 into which a cap 16 screwed to the horn protruding portion 4 is fitted is formed in the center and a lid portion 21. A locking projection 23 corresponding to the projection 29 of the pedestal 3 is provided in the middle of the back surface.

In the outer body 20, when the locking projection 23 is opposed to the projection 29, the cap 16 screwed to the horn projection 4 is fitted into the pedestal 3 with the hole 30, and the claw portion 26 causes the back surface of the projection 29. It engages with 27 to prevent it from coming off, and covers the horn protrusion 4 side of the main body 1. On the other hand, in the cap 16 that covers the primary horn 15, the spherical portion 31 on the front surface is exposed to the outside, but the outer surface portion 32 is the exterior body 20.
Since it is surrounded by the hole 30 of, the cap 16 cannot be pinched and removed.

As shown in FIGS. 5 to 8, a screw portion 17 for cap screwing is formed on the tip of a horn protrusion 35 protruding from the collar 2 of the main body 1 ′, and the outer diameter is a cap at the base end. A disc-shaped flange portion 36 having a diameter substantially equal to that of 16 is provided in a protruding manner. Main body 1 '
In the outer body 20 'that covers the horn protruding portion 35 side of the inner cylindrical portion 24 forming the cap insertion hole portion 30 at 90 ° intervals, the tip claw portions 26' are provided on the back surface of the flange portion 36, respectively. Is provided with a locking projection 23 '. This locking projection 23 '
The locking projection 2 to allow large elastic deformation.
Both sides of 3'are separated from the inner cylindrical portion 24 by slits 42,42. The other structure is the same as that of the embodiment shown in FIGS.

When the outer body 20 'is fitted into the cap 16 screwed to the horn protruding portion 35 at the hole 30 and comes into contact with the collar portion 2, the claw portion of the locking projection 23' is formed.
26 'engages with the back surface 27' of the flange portion 36 to prevent it from coming off, and covers the horn protruding portion 35 side of the main body portion 1 '.

In the figure, 38 and 39 are O-rings for ensuring water-tightness between the horn protrusions 4 and 35, the cap 16, and the collar 2 and the converter case 8, and 40 is a printed circuit board.

Although the cap is attached to the horn protrusion by using a screw in the embodiment, other attachment methods such as forming an L-shaped groove on the horn protrusion and inserting a pin protruding from the cap into the L-shaped groove. You may rotate and attach.

[Effect of device]

Since the primary radiator for satellite broadcasting reception of the present invention is configured as described above, the cap and the outer body can be easily attached to the horn protruding portion side of the main body portion, and moreover,
Since the cap can be reliably prevented from being removed by the user by the outer body, the waterproof function, the adjusting function, etc. are not impaired, and the regular performance of the product can be maintained. Further, since all the bolts, steps, etc. on the horn protruding portion side are covered by the exterior body, the appearance can be improved.

[Brief description of drawings]

FIG. 1 is a front view of the embodiment of the present invention excluding the exterior body, and FIG.
FIG. 3 is a vertical sectional view of an embodiment of the present invention, FIG. 3 is an assembly explanatory view of the same, FIG. 4 is a perspective view of the same, FIG. 5 is a front view of the other embodiment excluding an exterior body, and FIG. FIG. 7 is a longitudinal sectional view of another embodiment of the present invention, FIG. 7 is the same assembly explanatory view, FIG. 8 is the same perspective view, FIG. 9 is an assembly explanatory view of a conventional product, FIG. 10 is the same perspective view, and FIG. FIG. 12 is an assembly explanatory view of another conventional product, and FIG. 12 is a perspective view of the same. 1,1 '... Main body, 3 ... Pedestal, 4,35 ... Horn protrusion, 16 ... Cap, 17 ... Screw, 20,20' ... External body, 21,21 '... Lid Part, 23, 23 '... Locking projection, 24 ... Inner cylinder part, 26, 26' ... Claw part, 27, 27 '... Rear surface, 29 ... Projection part, 36 ... Flange part, 30 ... ... holes.

Claims (4)

[Scope of utility model registration request] 1. A horn-integrated converter in which a cap is attached to a horn protruding portion of a main body portion, a protrusion portion is provided at a base end of a cap attaching portion of the horn protruding portion, and a hole is formed in a cap attached to the cap attaching portion. A lid portion that abuts on the fitting main body portion and covers the horn protruding portion side of the main body portion, and a member that contacts the back surface of the projection portion with the claw portion at the tip when the lid portion is placed inside the lid portion and abuts the main body portion. A satellite broadcast receiving device characterized in that it is provided with an outer body consisting of a stop projection, and the outer body and the cap are prevented from being detached from the main body by fitting the outer body into the cap at the hole and contacting the main body. Primary radiator. 2. The projection is a flange, and the outer diameter of the flange is substantially equal to the outer diameter of the cap, and a locking projection is provided on the inner cylinder forming the hole of the lid. The primary radiator for receiving satellite broadcasting according to claim 1. 3. A pedestal is provided at the base end of the cap mounting portion, a projection is provided on a part of the pedestal, and a locking projection corresponding to the projection is provided in the middle of the back surface of the lid. The primary radiator for satellite broadcast reception according to 1. 4. The cap mounting portion is a screw portion.
Or the primary radiator for satellite broadcast reception according to 3 above.