Title:
ANTENNA MANUFACTURING METHOD AND ANTENNA
Document Type and Number:
WIPO Patent Application WO/2013/077244
Kind Code:
A1
Abstract:
An objective of the present invention is to allow, by simply passing an antenna element through a boom tube wall hole and applying pressure in the vertical direction to the boom, anchoring the antenna to the boom extremely easily. On the inner faces of horizontal arc walls in the boom tube wall, two ribs which extend in the axial direction of the boom are disposed side by side in a state of forming a gap therebetween in the vertical direction. The boom is compressed in the vertical direction, deforming the radius of curvature of the top wall and the bottom wall to approach a "finishing tube wall radius of curvature". Horizontal interim walls are bent in a state of expanding toward the outer circumference, forming a cross-section shape of the boom tube wall into an approximately circular shape. Eight protrusion parts are moved respectively in directions which are oblique to a direction in which gaps therebetween in the vertical direction get smaller and in which the intervals between the protrusions which are positioned on the left arc wall inner face and the protrusions which are positioned on the right arc wall inner face increase, in a state of eating into the antenna element circumference wall from the oblique directions, anchoring the antenna element in the hollow-tube boom in a state wherein rotational and axial direction movement of the antenna element is blocked.
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Inventors:
YABUSHITA TOSHIO (JP)
Application Number:
PCT/JP2012/079630
Publication Date:
May 30, 2013
Filing Date:
November 15, 2012
Export Citation:
Assignee:
MASPRO DENKO KK (JP)
International Classes:
H01Q1/12; H01Q19/30
Foreign References:
| JP2011061769A | 2011-03-24 | |||
| JP2001284927A | 2001-10-12 | |||
| JP2004048693A | 2004-02-12 | |||
| JP2004247915A | 2004-09-02 |
Attorney, Agent or Firm:
NAKASHIMA Tomoko et al. (JP)
Tomoko Nakajima (JP)
Tomoko Nakajima (JP)
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Claims: