Abstract: An on-vehicle adaptor for a portable telephone which mounts a portable telephone so that the portable telephone is never disengaged unless a force larger than a certain level is applied thereto. The adaptor includes a case having a recess for receiving a swelled bottom of a large-capacity battery pack mounted to the portable telephone. The case has a pair of guides for guiding both sides of the portable telephone, a first projection adapted for engagement with a retaining slot formed in the portable telephone, and a second projection adapted for engagement with a retaining slot formed in the battery pack. The adaptor also includes a pair of ratchets adapted to enter and leave openings formed in the guides of the case, the ratchets each having a tapered portion whose thickness in the vertical direction is smaller at a front end thereof. Urging means are provided for urging the paired ratchets toward each other.

Abstract: A battery pack charger capable of charging plural types of battery packs of different sizes. In a casing in which the battery packs are slid for mounting, there are housed a printed-circuit board and a fixing member removably fixed on the printed-circuit board for retaining the forward end section of the battery pack cooperatively with the casing. Further, in the casing are also installed current supply terminals for supplying the charging current to the battery pack. Further, in the casing are integrally formed a pair of guides for guiding the right and left sides of the battery pack and a head for holding from above the forward end section of the battery pack. The battery pack, when mounted, is secured only at the forward end section, and is exposed outside in a large portion, and therefore it is possible to charge plural types of battery packs of different sizes.

Abstract: An electromagnetic shielding structure of high-frequency circuit arrangements which is capable of electromagnetically shielding each high-frequency functional circuit within a narrow space. A printed-circuit board mounted with a plurality of high-frequency functional circuits is installed in the shielding case. Ribs with a long groove are formed on the inside surface of a molded plastic casing which has been treated to provide electrical conductivity, for separating the high-frequency functional circuits mounted on the printed-circuit board. In the long groove of the ribs is pressed a shielding member, and with the printed-circuit board assembled between the shielding case and the molded plastic casing, the top end of the shielding member is pressed against a ground pattern of the printed-circuit board.