DETACHABLE VEHICLE ROOF ANTENNA

• US 20070097002A1
• Filed: 10/30/2006
• Published: 05/03/2007
• Est. Priority Date: 10/31/2005
• Status: Active Grant

• Current Assignee: Harada Industry Company Limited
• Original Assignee: Harada Industry Company Limited
• Inventors: Wang, Jinsong
• Granted Patent: US 7,646,351 B2
• Time in Patent Office: Days
• US Class Current: 343/715
• CPC Class Codes: H01Q 1/3275 mounted on a horizontal surface of the vehicle, e.g. on roof, hood, trunk

Abstract

A base side connecting mechanism (30) comprises a holder (40), a plug metal (50) and a sleeve (70). The plug metal (60) has a shaft (51) and a lock pin (52) projecting from the shaft (61) in a radial direction. The sleeve (70) is disposed to move slidingly along an axial direction of the shaft (61), is supported by the plug metal (60) through a wave washer (60), and receives biasing power toward an antenna mast (100) side. A mast side connecting mechanism (120) comprises a circular cylinder portion (121). The circular cylinder portion (121) is formed to press the sleeve (70) along the axial direction and has loosely penetrated portions (124, 125) in which the lock pin (52) can move along a circumferential direction and in which other end portions are large-diameter.

Claims

1. A detachable vehicle antenna comprising:

an antenna base provided on a vehicle;

an antenna mast installed attachably and detachably to said antenna base;

a first connector assembly disposed on said antenna base toward said antenna mast;

a second connector assembly disposed on said antenna mast toward said antenna base, and formed to be fittable into said first connector assembly along a predetermined axial direction; and

a lock mechanism connecting mechanically and electrically between said first connector assembly and said second connector assembly, said lock mechanism having a movable portion which is movable along said predetermined axial direction by pressing of said second connector assembly toward said first connector assembly side, and lock portions which are locked with each other by rotating said first connector assembly and said second connector assembly about said predetermined axis.

2. The detachable vehicle antenna according to claim 1, wherein said lock mechanism comprises:

a plug of conductive material provided on one of said first connector assembly and said second connector assembly, and protruding toward the other of said first connector assembly and said second connector assembly;

a seal portion provided on one of said first connector assembly and said second connector assembly, and constructing said movable portion; and

a plug receiving portion provided on the other of said first connector assembly and said second connector assembly, pressing said seal portion during fitting, and connected to said plug.

3. The detachable vehicle antenna according to claim 2, wherein said seal portion is formed cylindrically to surround a periphery of said plug, and said plug receiving portion is formed cylindrically in the same axis of said plug.

4. The detachable vehicle antenna according to claim 3, wherein said seal portion comprises conductive material.

5. The detachable vehicle antenna according to claim 1, wherein said first connector assembly comprises a projecting portion formed on a surface connected with said second connector assembly, and said second connector assembly comprises a depressed portion formed on a surface connected with said first connector assembly and fitting into said projecting portion.

6. The detachable vehicle antenna according to claim 2, wherein said plug comprises a lock pin projecting from both sides of said plug in a radial direction, and projecting amounts of both ends of said lock pin are different from each other.