Wrist-portable apparatus

A wrist-portable apparatus comprising:

• a case;
• a display member rotatably mounted in the case for displaying information;
• an operational shaft mounted to undergo rotational and sliding movements relative to the case so that the operational shaft may be axially displaced between a pushed-in position, in which the operational shaft is pushed into the case, and a drawn-out position, in which the operational shaft is drawn out from the case;
• a clutch assembly for transmitting rotational movement of the operational shaft to the display member to rotate the display member when the operational shaft is displaced to the drawn-out position and for releasing the transmission of the rotational movement of the operational shaft to the display member when the operational shaft is displaced to the pushed-in position, the clutch assembly comprising a gear integral with the operational shaft and a rack integral with the display member for meshing engagement with the gear to transmit rotational movement of the operational shaft to the display member when the operational shaft is displaced to the drawn-out position;
• and
• a manual control stem integrally connected to an end of the operational shaft and disposed on a side surface portion of the case for controlling rotation of the operational shaft and displacement of the operational shaft to the pushed-in and drawn-out positions.

A wrist-portable apparatus comprising:

• a case;
• a display member rotatably mounted in the case for displaying information;
• an operational shaft mounted to undergo rotational and sliding movements relative to the case so that the operational shaft may be axially displaced between a pushed-in position, in which the operational shaft is pushed into the case, and a drawn-out position, in which the operational shaft is drawn out from the case;
• a clutch assembly for transmitting rotational movement of the operational shaft to the display member to rotate the display member when the operational shaft is displaced to the drawn-out position and for releasing the transmission of the rotational movement of the operational shaft to the display member when the operational shaft is displaced to the pushed-in position, the clutch assembly comprising a first rotation transmission member integral with the operational shaft and a second rotation transmission member connected to the display member and for engagement with the first rotation transmission member when the operational shaft is displaced to the drawn-out position to transmit rotational movement of the operational shaft to the display member to rotate the display member;
• a manual control stem integrally connected to an end of the operational shaft and disposed on a side surface portion of the case for controlling rotation of the operational shaft and displacement of the operational shaft to the pushed-in and drawn-out positions;
• and
• a tubular member integrally connected to the case and having a first end portion disposed in the case and a second end portion extending outwardly from the case for removable locking engagement with the manual control stem to integrally connect the manual control stem to the case when the operational shaft is displaced to the pushed-in position, the locking engagement between the manual control stem and the second end portion of the tubular member being released by rotational movement of the manual control stem in a direction of rotation resulting in displacement of the operational shaft to the drawn-out position and being released before engagement between the first rotation transmission member and the second rotation transmission member during displacement of the operational shaft to the drawn-out position.