Abstract: A telephone apparatus comprises a body part (601) and a sleeve-like grip part (602) mounted to the body part (601) for longitudinal slidable movement between a retracted position and an extended position. Mechanically coupled to the body part (601) and the grip part (602) there is a spring (700, 1203) for effecting the longitudinal slidable movement. A locking mechanism (1004, 1006, 1007) is provided for detachably locking the body part and the grip part into the retracted position. There is also a user-actuatable releasing actuator (1005) for releasing the locking mechanism. The releasing actuator (1005) is located within the grip part (602).

Abstract: A mobile communication device has a full function keyboard constructed in two positions wherein the first portion may be pivoted and the second portion may be moved linearly sideways between respective open and closed positions one in which the keyboard is hidden and the keypad of the device is exposed for normal use and a second in which a larger viewing area of the display screen is revealed and the two portions of the keyboard are positioned on opposite sides of the screen of the device.

Abstract: The invention relates to an electromechanical structure of an extendable electrical device comprising a body part (300) and a sleeve-like grip part (301). The smooth longitudinal movement between a retracted and extended position is effected by a clockspring in a spring barrel (302). A belt is wrapped around the barrel, and a slide part (306) is attached to the free end of the belt. When the device is retracted, the slide part with the belt slides along a longitudinal groove (304) made on at least one side of the body part until the slide part is interlocked. In response to pushing a releasing element, the interlocking is released, whereupon the belt is wrapped around the barrel and the body part slides smoothly to extended position.

Abstract: The invention concerns a spring barrel module having two chambers. A spring is located in the first chamber and a damper in the second chamber. The unidirectional damper is implemented by a clutch means that connects the damper plate to the spring shaft when the tightened spring is released, whereby the rotation of the damper slows down. Correspondingly, the clutch loosens the connection between the damper plate and the spring shaft when the spring is tightened. In low temperatures (e.g. below 0° C. degrees) the damper fails to dampen the rotation. The unidirectional feature of the damper improves both usability and durability. Breakage of the mechanical components of the spring barrel is prevented by an overload clutch, which means that the spring barrel module will tolerate even relatively rough handling of the equipment.