| 摘要 |
A protective cushion is provided which works to absorb accidental physical impact acting on an antenna unit built in a portable unit such as a remote keyless entry transmitter for automotive vehicles. The protective cushion includes dampers each of which has a first and a second contact. The cushion is disposed within a casing in elastic abutment of the first contacts with the antenna unit and the second contacts with an inner surface of the casing, thereby absorbing physical impact transmitted to the antenna unit which is produced, for example, when the user drops the portable unit accidentally, thereby avoiding the detachment of the antenna unit from a circuit-fabricated substrate and/or breakage of the antenna unit itself.
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