Abstract: A power generation switch comprising: a case; a core, a coil being wound around the core; a magnet magnetically connected with the core; a yoke in which the magnet is disposed; an elastic element that supports the yoke and elastically deforms so as to deviate a position of the magnet from the core; a switch element that is operated to be moved; and a yoke driving mechanism that moves the yoke so that upon an engagement of the switch element and the yoke being released, the yoke moves between a first position and a second position due to elastic force of the elastic element, wherein first magnetic flux is generated by the core and the magnet when the yoke is at the first position and second magnetic flux different from the first magnetic flux is generated by the core and the magnet when the yoke is at the second position.

Abstract: A power generation switch apparatus including multiple switch keys, a power generation apparatus that is driven to perform power generation by an operation force applied to the multiple switch keys, multiple switches being supplied with an electric power generated by the power generation apparatus and performing a switching movement by an operation of the multiple switch keys, and a switch signal transmission circuit being driven by the electric power from the power generation apparatus and outputting multiple switch signals that are different from each other in correspondence with the switching movement of the multiple switches.

Abstract: A power generation switch comprising: a case; a core, a coil being wound around the core; a magnet magnetically connected with the core; a yoke in which the magnet is disposed; an elastic element that supports the yoke and elastically deforms so as to deviate a position of the magnet from the core; a switch element that is operated to be moved; and a yoke driving mechanism that moves the yoke so that upon an engagement of the switch element and the yoke being released, the yoke moves between a first position and a second position due to elastic force of the elastic element, wherein first magnetic flux is generated by the core and the magnet when the yoke is at the first position and second magnetic flux different from the first magnetic flux is generated by the core and the magnet when the yoke is at the second position.

Abstract: A power generating device includes a power generating part, a sliding member, first, second and third elastic parts, and a connecting member. When the sliding member is caused to move to a first storage completion position by an operation that causes the connecting member to rotate, the connecting member and the sliding member are disconnected so that the sliding member is caused to move in a first direction by an elastic force stored in the second elastic part. The connecting member is caused to rotate by an elastic force stored in the third elastic part. When the sliding member is caused to move to a second storage completion position by the third elastic part, the connecting member and the sliding member are disconnected so that the sliding member is caused to move in a second direction by an elastic force stored in the first elastic part.

Abstract: A power generation apparatus includes an operation member that has a first operation part or a second operation part operated upon power generation; a power generation part that generates an induced electromotive force upon being driven by a slide member that moves in a first direction or a second direction; first and second elastic units that accumulate an elastic force; a first connection release mechanism that prompts the first elastic unit to accumulate elastic force when the first operation part is operated and allows the elastic force to be output to move the slide member in the second direction when accumulation is completed; and a second connection release mechanism that prompts the second elastic unit to accumulate the elastic force when the second operation part is operated and allows the elastic force to be output to move the slide member in the first direction when accumulation is completed.

Abstract: A power generation switch apparatus including multiple switch keys, a power generation apparatus that is driven to perform power generation by an operation force applied to the multiple switch keys, multiple switches being supplied with an electric power generated by the power generation apparatus and performing a switching movement by an operation of the multiple switch keys, and a switch signal transmission circuit being driven by the electric power from the power generation apparatus and outputting multiple switch signals that are different from each other in correspondence with the switching movement of the multiple switches.

Abstract: A power generator device includes a switch lever that is operated upon power generation, a power generator that generates an induced electromotive force when a driven unit is driven; and a power generation spring that accumulates an elastic force upon being applied an external force and outputs the accumulated elastic force to drive the driven unit. Further, the power generator device includes a sliding member and a pinwheel that are configured to transmit an operating force of the switch lever to the power generation spring while the switch lever is positioned between a pre-operation position and an accumulation complete position at which a predetermined elastic force is accumulated at the power generation spring, and disengage the engagement between the switch lever and the power generation spring and allow the power generation spring to output the accumulated elastic force when the switch lever moves past the accumulation complete position.

Abstract: A power generating device includes a power generating part, a sliding member, first, second and third elastic parts, and a connecting member. When the sliding member is caused to move to a first storage completion position by an operation that causes the connecting member to rotate, the connecting member and the sliding member are disconnected so that the sliding member is caused to move in a first direction by an elastic force stored in the second elastic part. The connecting member is caused to rotate by an elastic force stored in the third elastic part. When the sliding member is caused to move to a second storage completion position by the third elastic part, the connecting member and the sliding member are disconnected so that the sliding member is caused to move in a second direction by an elastic force stored in the first elastic part.

Abstract: A power generation apparatus includes an operation member that has a first operation part or a second operation part operated upon power generation; a power generation part that generates an induced electromotive force upon being driven by a slide member that moves in a first direction or a second direction; first and second elastic units that accumulate an elastic force; a first connection release mechanism that prompts the first elastic unit to accumulate elastic force when the first operation part is operated and allows the elastic force to be output to move the slide member in the second direction when accumulation is completed; and a second connection release mechanism that prompts the second elastic unit to accumulate the elastic force when the second operation part is operated and allows the elastic force to be output to move the slide member in the first direction when accumulation is completed.

Abstract: A power generator device includes a switch lever that is operated upon power generation, a power generator that generates an induced electromotive force when a driven unit is driven; and a power generation spring that accumulates an elastic force upon being applied an external force and outputs the accumulated elastic force to drive the driven unit. Further, the power generator device includes a sliding member and a pinwheel that are configured to transmit an operating force of the switch lever to the power generation spring while the switch lever is positioned between a pre-operation position and an accumulation complete position at which a predetermined elastic force is accumulated at the power generation spring, and disengage the engagement between the switch lever and the power generation spring and allow the power generation spring to output the accumulated elastic force when the switch lever moves past the accumulation complete position.

Abstract: A retaining member for retaining a grabber has a positioning arrangement for fixing the grabber in place. The grabber has a rear surface having a pair of hollows at upper and lower end portions. The positioning arrangement has a retainer opposed to a front surface of the grabber on retaining the grabber and a pair of leaf springs opposed to the retainer with a space shorter than a thickness of the grabber. The pair of leaf springs is disposed apart from each other up and down. The pair of leaf springs has a pair of projections engaged with the pair of hollows. The pair of hollows is disposed the outside of a tape winding portion where a magnetic tape is wound.

Abstract: A brush driving mechanism, which drives a cleaning brush from a retracted position to an operation position opposed to a magnetic head, has a main arm having a tip coupled to the cleaning brush through a shaft. A chassis has a chassis slit, in which the shaft is inserted, for allowing to move the cleaning brush from the retracted position to the operation position by operating the main arm. The chassis slit has a tip portion stops the shaft when the cleaning brush is put into the operation position to position the cleaning brush with respect to the magnetic head.

Abstract: A driving mechanism, which drives a pull-out assembly up to an interior of a reel hub of a take-up reel, has a shaft which is inserted in a through hole bored in a grabber with a clearance. A shutter fixes the pull-out assembly in a receiving portion at a predetermined position on receiving the pull-out assembly in the receiving portion. A positioning member positions the shaft with a center of the shaft substantially coincided with a central axis of the take-up reel and with the clearance held between the shaft and an inner wall of the through hole when the pull-out assembly is received in the receiving portion.

Abstract: A driving mechanism, which drives a pull-out assembly up to an interior of a reel hub of a take-up reel, has a shaft which is inserted in a through hole bored in a grabber with a clearance. A shutter fixes the pull-out assembly in a receiving portion at a predetermined position on receiving the pull-out assembly in the receiving portion. A positioning member positions the shaft with a center of the shaft substantially coincided with a central axis of the take-up reel and with the clearance held between the shaft and an inner wall of the through hole when the pull-out assembly is received in the receiving portion.

Abstract: A take-up reel includes a reel hub having an outer circumferential surface which is used as a magnetic tape winding surface. The reel hub has an opening for passing a pull-out assembly through an interior thereof. The take-up reel has a receiving portion for receiving the pull-out assembly in the interior of the reel hub. The take-up reel includes a shutter having an open/close door for automatically opening/closing the opening in cooperation with the pull-out assembly. When the open/close door close the opening, the open/close door has an outer circumferential surface which forms a part of the magnetic tape winding surface.

Abstract: A pair of disk-shaped annular flanges is made of material firmer than that of a hollow cylindrical-shaped roller portion. The roller portion has an outer peripheral surface in which the flanges are mounted at opposite ends thereof. On press-fitting a pair of bearings in the roller portion, the flanges are retained by means of bearing flanges. The outer peripheral surface of the roller portion has a pair of flange guides, at opposite ends thereof, for guiding the flanges. The flange guide has a longitudinal length shorter than thickness of the flange. An adhesive agent may be filled in a gap formed among an end surface of the roller portion, the disk-shaped annular flange, and the bearing.

Abstract: A pin retainer locks a leader pin during a movement of a pull-out assembly where the leader pin is coupled to a grabber between a grabber holder and a take-up reel. The pin retainer is urged toward a locking position by a spring. When the grabber comes close to a cartridge, a first releasing arm makes the pin retainer retract to a retracted position opposed to urging force of the spring.

Abstract: A clutch member coupling a first gear with a second gear with a play has a first clutch gear engaged with the first gear and a second clutch gear engaged with the second gear. Between the first clutch gear and the second clutch gear, a torsion spring for imparting the play to the clutch member is disposed. A combination of a protrusion portion, a lock arm cam, and a lock arm controls so that the play caused by the torsion spring is effective while a rotational angle of the first clutch gear lies in a first angular range and controls so that the play caused by the torsion spring is ineffective so as to make the first clutch gear and the second clutch gear move integrally while the rotational angle of the first clutch gear lies in a second angular range.

Abstract: An ejection position detection mechanism has an arc-shaped plate, attached to a mode gear, having a plurality of detected elements provided at positions corresponding to a plurality of ejection positions of a cartridge, and a detection arrangement, disposed near to the arc-shaped plate, for detecting the plurality of detected elements. The arc-shaped plate consists of a shielding plate. The plurality of detected elements consist of an edge of the shielding plate and two slits formed on the shielding plate. The detecting arrangement consists of a photo-interrupter.

Abstract: A pair of disk-shaped annular flanges is made of material firmer than that of a hollow cylindrical-shaped roller portion. The roller portion has an outer peripheral surface in which the flanges are mounted at opposite ends thereof. On press-fitting a pair of bearings in the roller portion, the flanges are retained by means of bearing flanges. The outer peripheral surface of the roller portion has a pair of flange guides, at opposite ends thereof, for guiding the flanges. The flange guide has a longitudinal length shorter than thickness of the flange. An adhesive agent may be filled in a gap formed among an end surface of the roller portion, the disk-shaped annular flange, and the bearing.