Abstract: A keyboard unit comprises a keyboard base and a number of key-tops. A switch in the form of a sheet is interposed between the keyboard base and the key-tops. The switch has a number of movable contacts arranged corresponding to the key-tops, and a number of stationary contacts opposed to the respective movable contacts. The key-tops are supported above the keyboard base by respective key-top support mechanisms such that they can move vertically. Each of the key-top support mechanisms includes first and second link levers pivotably connected to each other. The first link lever is made of a metal and has an elastically deformable pressing section that is formed integral therewith as one body. A number of elastically deformable load receiving sections are interposed between the respective pressing sections and the respective movable contacts.

Abstract: A keyboard unit comprises a keyboard base and a number of key-tops. A switch in the form of a sheet is interposed between the keyboard base and the key-tops. The switch has a number of movable contacts arranged corresponding to the key-tops, and a number of stationary contacts opposed to the respective movable contacts. The key-tops are supported above the keyboard base by respective key-top support mechanisms such that they can move vertically. Each of the key-top support mechanisms includes first and second link levers pivotably connected to each other. The first link lever is made of a metal and has an elastically deformable pressing section that is formed integral therewith as one body. A number of elastically deformable load receiving sections are interposed between the respective pressing sections and the respective movable contacts.

Abstract: An expanding apparatus for expanding the function of an electronic apparatus comprises a body including a mounting portion having a second connector. The body has an expanding device electrically connected to the second connector. A connector unit is detachably mounted on the mounting portion of the body, and has a third connector and a fourth connector. The third connector of the connector unit is detachably connected to a first connector of the electronic apparatus, and the fourth connector of the connector unit is detachably connected to the second connector.

Abstract: A portable information processing apparatus includes a housing storing electronic components. The housing includes first to third card storage portions having insertion ports open to one side surface of the housing, respectively, for card-like electronic components. A first cover is provided on the housing and rotatable between a closed position wherein the insertion port of the first card storage portion is closed by the first cover and an opened position wherein the insertion port of the first card storage portion open. A second cover is provided on the housing to be movable between a closed position wherein the first cover located in the closed position and the insertion ports of the second and third card storage portions are covered with the second cover and an opened position wherein the first cover and the insertion ports of the second and third card storage portions are exposed.

Abstract: An electronic apparatus comprising a housing, having a side surface in which an inlet is formed. A card storage section is provided in such a manner as to be continuous with the inlet. The card storage section is intended to allow a card-like electronic part to be accessibly inserted there into through the inlet and has a card connector to which the card-like electronic part is detachably connectable. An ejector is arranged within the housing, and intended to eject the card-like electronic part to the outside of the housing through the inlet. Further, the ejector has a slider for pushing the card-like electronic part in a direction where the card-like electronic part is separated from the card connector. The slider is supported by the housing such that it can be slid between a first position where the card-like electronic part has been pushed out though the inlet and a second position where the slider is separate from the card-like electronic part.

Abstract: An electronic apparatus system comprises a portable computer and an expansion unit containing a FDD for expanding the function of the computer. The computer has an inlet into which a memory card having a terminal is accessibly inserted, and a first connector is provided in the inlet, and the terminal of the memory card is detachably connected to the first connector. The expansion unit attaches underneath the computer and has a second connector connected to the FDD. The second connector is accessibly inserted into the third thru an opening in the bottom of the computer and connected to the first connector at the time of the insertion, so that the computer and the expansion unit are electrically connected to each other. The second connector is mounted on a slider.

Abstract: An electronic apparatus system comprises a portable computer and an expansion unit containing a FDD for expanding the function of the computer. The computer has an inlet into which a memory card having a terminal is accessibly inserted, and a first connector is provided in the inlet, and the terminal of the memory card is detachably connected to the first connector. The expansion unit attaches underneath the computer and has a second connector connected to the FDD. The second connector is accessibly inserted into one inlet through an opening in the bottom of the computer and connected to the first connector at the time of the insertion, so that the computer and the expansion unit are electrically connected to each other.

Abstract: A personal computer includes a box-shaped body having a card storing section for storing a memory card. An operating opening portion is formed by cutting an edge of the body to a given size and externally accessible by a finger, and the storing section communicates with the opening portion through an inlet opening. An ejector mechanism for ejecting the card from the card storing section includes a card receiver arranged in the storing section for receiving the card inserted through the inlet opening. A drawer member is mounted on the card receiver and has an operating end portion. The operating end portion is located within the operating opening portion when the drawer member is moved to its pushed-in position while the card receiver is in its first position and outwardly projects through the operating opening portion when the drawer member is moved to its drawn-out position while the card receiver is in its first position.