Abstract: A wrist mobile information device is attached with arm holders different in length through a ratchet mechanism. A spring is added or buried at the backside of the arm holder.

Abstract: A strap for a wrist-wearable electronic device facilitates battery charging and the supply of electrical power to external devices. A housing for a battery is removably mounted to the center of a resin strap, and one or more batteries are lined up next to each other within the housing. The batteries and housing are curved to conform to the curvature of a user's wrist. A charging terminal for charging the batteries is provided and one or more output terminals for supplying electrical power to external devices are provided at four corners of the housing. The output voltages and diameters of the terminals are different and each terminal is provided with detachable resin covers. An overcharging prevention circuit is disposed between the charging terminal and an output terminal.

Abstract: A portable wrist device has a thermoelectric generator for generating electric energy from a temperature difference between a heat receiving portion and a heat radiating portion. A heat radiating upper frame radiates heat from the heat radiating portion of the thermoelectric generator. A back cover supplies heat to the heat receiving portion of the thermoelectric generator. The back cover has an inner surface connected to the heat receiving portion of the thermoelectric generator and an outer surface for contacting a wrist of a user. A heat collecting plate is disposed on the inner surface of the back cover and has a contact portion disposed in contact with the heat receiving portion of the thermoelectric generator. The contact portion of the heat collecting plate has a thickness greater than other portions of the heat collecting plate for storing higher temperature heat.

Abstract: To provide a coupling structure capable of rotating and waterproofing a communication cable while communicating it. In a fitting portion, a communication hole having a proper diameter is provided to a portion ranging from the periphery of the center of a connector attaching hole to the center of a rotational axis of an engagement surface between the fitting portion and a fitting portion. A communication hole is provided in the fitting portion in the same manner. Finally, the connector attaching hole on the main body side and a connector attaching hole on the function unit side are in communication through the two communication holes passing through the center of the rotational axis. Therein, the communication cable communicates. A sealing member having a ring shape such as an O-shaped ring is provided at the opening of the communication hole of the hinge-piece fitting portion on the main body side.

Abstract: To reduce costs and realize appropriate fitting while assuring an area of an electric circuit and an area of an operation portion, a display portion or the like. An arm portable information apparatus which is fit to the arm to be carried includes a main body having an electric circuit for information processing, a function unit having an electric circuit for an adding function, and a hinge portion for coupling the function unito the main body communicably and movably in the circumferential direction of the arm. Upon fitting, the hinge portion is bent with a proper angle, thereby enabling appropriate fitting.

Abstract: A thermoelectric generating electronic device has a heat insulating drum with a hollow portion extending in a vertical direction, a rear cover covering a lower end side of the hollow portion, a glass on an upper end side of the hollow portion, a bezel connected to the heat insulating drum, and a heat radiating drum thermally connected with the bezel. A thermoelectric generator has a heat receiving portion and a heat radiating portion for generating electric energy in accordance with a temperature difference between the heat receiving portion and the heat radiating portion. The heat radiating portion is thermally connected to the bezel and the heat receiving portion is thermally connected to the rear cover. A heat accumulating material is disposed generally parallel to the thermoelectric generator for accumulating heat and in the hollow portion, so that heat is conducted to the heat receiving portion.

Abstract: A wrist-portable device improves the radiation efficiency of the radiation section of a thermoelectric generator and minimizes a temperature difference between the radiation section and the outside air. In order to prevent a radiation section of a thermoelectrically powered watch from increasing its temperature due to a hand or a high-temperature substance unexpectedly touching the surface of the radiation section, the surface of the radiation section is detachably covered with a radiation guard cover having meshes or striped holes formed therein.

Abstract: A waterproof watchcase-and-glass assembly has a plurality of superimposed resin layers coated on the glass in the region where the glass contacts the case to obtain a watertight connection between the case and glass. The innermost resin layer, which is in contact with the glass, has superior adhesion to glass and a lower hardness than the outermost resin layer, which is in contact with the case.

Abstract: A watchcase comprises a case body, a bezel, and a support member affixed to the bezel for removably connecting the bezel to the case body so as to permit easy removal and replacement of the bezel. The support member has at diametrically opposite locations thereof outwardly extending flange portions, and corresponding recesses are provided in the case body at diametrically opposite locations for movably receiving therein respective ones of the flange portions with sufficient clearance therebetween to enable a sufficient extent of movement of the support member relative to the case body in the diametrical direction of the flange portions to permit removal and replacement of the bezel without deformation of either the case body or bezel. A deformable elastic member is interposed between the bezel, support member and case body and the elastic member is configured so as to undergo elastic deformation during removal and replacement of the bezel thereby preventing deformation of both the case body and bezel.

Abstract: A watchcase comprises a case body, a back cover connected to the back of the case body and a bezel connected to the top of the case body. A support member is connected to either the back cover or the bezel and comprises an outwardly extending flange, and oppositely disposed beads extending outwardly from the flange. The beads are configured to coact with recesses which are oppositely disposed in the inner surface of the case body so as to be received therein upon insertion of first one bead in its respective recess followed by the displacement of the support member relative to the case body so as to temporarily dispose the beads in extreme positions with respect to the recesses, and the beads are maintained in their respective recesses upon the return displacement of the support member so as to move the beads from their extreme positions. The beads are normally biased out of their extreme positions when inserted in the recesses.