Antenna device
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Abstract
To enable an antenna device to be easily mounted to a roof or the like, and to realize a highly reliable state of the antenna device after mounted. The invention relates to an antenna device comprising an antenna element, and a bottom cover and a top cover which cover the antenna element. The bottom cover includes a base projection to be inserted into an opening formed in a mounting part, a washer having an elastic force being fitted over this base projection, and the washer comes into contact with an inner face of the mounting part thereby enabling the antenna device to be mounted and fixed. The washer is inserted into the opening in the mounting part in a state fitted over the base projection, and recovered to its original shape by the elastic force after the insertion, thereby to be brought into contact with the inner face of the mounting part.
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Citations
10 Claims
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1-7. -7. (canceled)
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8. An antenna device attached on an outer face of a plate member having a trough hole connecting the outer face and an inner face of the plate member, the electric device comprising:
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an antenna element;
a cover, defining a space for covering the antenna element;
a tubular projection, extended from the cover member so as to communicate with the space, comprising a first locking member, the projection inserted into the through hole from the outside to the inside of the plate member in a first direction; and
a cap member, comprising a second locking member, and adapted to be fitted with the projection from the inside of the plate member such that the second locking member is engaged with the first locking member and the cap member is brought into contact with the inner face of the plate member.
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9. (canceled)
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10. A method of attaching an outer face of a plate member having a trough hole connecting an outer face and an inner face of the plate member, the method comprising steps of:
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providing an antenna device comprising;
an antenna device;
a cover, defining a space for covering the antenna element; and
a tubular projection, extended from the cover member so as to communicate with the space, comprising a first locking member;
providing a cap member comprising a second locking member at the inside of the plate member;
inserting the projection, into the through hole from the outside to the inside of the plate member in a first direction; and
fitting the cap member to the projection from the inside of the plate member, such that the second locking member is engaged with the first locking member and the cap member is brought into contact with the inner face of the plate member.
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Specification