Title:
TWO-STEP TELESCOPIC WHIP ANTENNA
Document Type and Number:
Japanese Patent JP3667672
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To provide a two-step telescopic whip antenna which prevents an upper element from bending or folding its portion near a top metal fitting, using a very simple constitution.
SOLUTION: The antenna has a joint fitting 4 mounted on the top end of a lower element 3 for storing an upper element 2 in the lower element 3. The joint fitting 4 has an outside diameter, which is approximately equal to or less than the inner diameter of a spring part 7b in an insert hole of a support metal 7 provided on a cabinet. Thus the joint fitting 4 passes smoothly through the insert hole of the support metal 7 when the antenna is shed, and hence no stress is exerted on a portion of the upper element 2 near a top fitting 5 during storing of the antenna, thereby preventing this portion from bending or breaking.
Inventors:
Atsutoshi Umezawa
Application Number:
JP2001277558A
Publication Date:
July 06, 2005
Filing Date:
September 13, 2001
Export Citation:
Assignee:
Saitama NEC Corporation
International Classes:
H01Q1/10; H01Q1/24; (IPC1-7): H01Q1/24; H01Q1/10
Domestic Patent References:
| JP7273519A | ||||
| JP2001053515A | ||||
| JP2001068914A | ||||
| JP5021513U |
Attorney, Agent or Firm:
Sakai Hiromi