US 8,941,544 B2Granted

Vehicle roof mount antenna

AssigneeHarada Industry Co., Ltd.

InventorsHidekazu Kobayashi, Mitsuo Minakawa, Satoshi Oba, Makoto Hayashi, Toshiro Yokoyama

Life of this patent

Estimating the term…

Loading patent…

Abstract

The vehicle roof mount antenna to be detachably mounted on a vehicle roof is mainly constituted by an antenna cover 1, an antenna base 2, a boss 3, a pad 4, an annular rib 5, and an annular groove portion 6. The pad 4 has a boss hole 7 through which the boss 3 penetrates and is disposed between the antenna base 2 and the vehicle roof R. The annular rib 5, which is made of an elastic material, is provided on the vehicle roof R side surface of the pad 4. When the vehicle roof mount antenna is fixed to the vehicle roof R, the annular rib 5 is inclined from the boss hole 7 toward a periphery of the pad 4. The annular groove portion 6 is provided at a position where the pressing force of the annular rib 5 against the vehicle roof R can be reduced.

Claims23

Dependent claims

A vehicle roof mount antenna detachably mounted on a vehicle roof, comprising:

an antenna cover;
an antenna base covered by the antenna cover;
a boss used for fixing the vehicle roof mount antenna to the vehicle roof;
a pad having a boss hole through which the boss penetrates and disposed between the antenna base and the vehicle roof;
an annular rib made of an elastic material and provided on the vehicle roof side surface of the pad so as to protrude from the vehicle roof side surface of the pad at the peripheral edge of the boss hole, which is inclined from the boss hole toward a periphery of the pad in a state where the vehicle roof mount antenna is fixed to the vehicle roof;
an annular groove portion provided as an escape margin of the annular rib in a form of depression of the vehicle roof side surface of the pad at a position where the pressing force of the annular rib against the vehicle roof can be reduced, wherein the annular groove portion is configured to increase a length of the annular rib from its base to tip without changing its height from a surface of the pad;
and
in a state where the vehicle roof mount antenna is fixed to the vehicle roof, the width of the annular groove portion is designed such that a tip portion of the annular rib does not go over the annular groove portion and the depth thereof is designed such that the annular rib does not contact a bottom portion of the annular groove portion.

5 more elements

Dependencies are inferred from the claim text.