Wrist-portable electronic apparatus and air chamber device

A wrist-portable electronic apparatus comprising:

• an expansion chamber provided on the wrist side of an apparatus case or an apparatus band;
• and
• a pump portion which connects with the expansion chamber to supply air thereto, separably attaches a hollow pump body to the apparatus case or the apparatus band so as to be rotatable with respect to the apparatus case or apparatus band, and has an air push-in portion on a side portion of the pump body.

In a wrist-wearable electronic apparatus having a case and a band connected to the case for attaching the electronic apparatus to a wearer's wrist:

• a flexible expansion chamber provided on the wrist side of the case or the band;
• and a pump communicating with the interior of the expansion chamber for supplying air thereto to inflate the expansion chamber so that it can be maintained in close contact with the wearer's wrist, the pump having at least one actuatable push-in portion on at least one of two opposed lateral sides of the case or band adjacent the wrist side thereof so that the wearer can apply a sideways directed force to actuate the push-in portion to supply air to the expansion chamber.

In a wrist-wearable electronic apparatus having a case and a band connected to the case for attaching the electronic apparatus to a wearer's wrist:

• a flexible expansion chamber provided on the wrist side of the case or the band;
• and a pump communicating with the interior of the expansion chamber for supplying air thereto to inflate the expansion chamber so that it can be maintained in close contact with the wearer's wrist, the pump having at least one actuatable push-in portion rotatably mounted on the case or band so that the wearer can rotate the push-in portion to a desired position and apply a force thereto to actuate the push-in portion to supply air to the expansion chamber.

An air chamber device for use with a wrist-wearable electronic apparatus, the air chamber device comprising:

• a flexible, inflatable expansion chamber having a generally flat configuration and being configured to fit on the wrist side of a wrist-wearable electronic apparatus;
• a pump for supplying air to the expansion chamber, the pump having at least one push-in portion having a push-in direction generally parallel to the plane of the expansion chamber;
• and a discharge valve for discharging air from the expansion chamber.