Abstract: A hub-based drive coupling mechanism for a fusing assembly, including a gear operatively coupled to a motor; a hub member; and a backup roll having a shaft rotatably coupled to the gear via the hub member, the gear including an outer cylindrical portion having a plurality of tabs disposed along an inner surface thereof, the hub member including an annular portion having a plurality of protrusions radially extending therefrom, and the backup roll shaft having a pin member. The gear rotates for a first fraction of a revolution without rotating the hub member and the backup roll due to the tabs of the gear not contacting the protrusions of the hub member, and rotates for a second fraction of the revolution with the hub member due to contact between the tabs and protrusions, but without rotating the backup roll.

Abstract: An image-pickup apparatus includes a mirror moving into and out of an optical path, a shutter mechanism including shutter blades and a shutter-driving spring driving the shutter blades in an open direction, a charge-holding member holding the shutter mechanism with the shutter-driving spring charged, and a hold-releasing member releasing the holding of the shutter mechanism by the charge-holding member. The shutter blades and the charge-holding member are moved in a plane parallel to a light-receiving surface of an image-pickup element. The hold-releasing member is moved in a plane orthogonal to the light-receiving surface of the image-pickup element and drives the mirror in a moving-out direction when releasing the holding of the shutter mechanism. The apparatus has a small configuration associated with driving the shutter mechanism and is appropriate for providing a cleaning mechanism of the image-pickup element by using a movable member different from the shutter blades.

Abstract: Disclosed is an idler for a tape recorder that can selectively transmit a driving force from a capstan motor to a take-up reel or a supply reel depending upon a rotational direction of the capstan motor. The idler includes an idler gear connected to either of the take-up reel and the supply reel, and a gear supporting plate, provided with a ?-shaped portion or U-shaped portion, for rotatably supporting the idle gear. The idler gear is provided with a convex portion or a concave portion formed at both ends of a rotary center thereof, and the gear supporting plate is provided with a convex portion or a concave portion corresponding to the convex portion or concave portion of the idler gear.

Abstract: Disclosed is a reel clutch of a tape recorder. A plate spring is positioned between a reel gear and a reel disc of a reel disc assembly which is mounted on a deck of a tape recorder, and a stopper reel is provided on the reel disc to restrain the engaging height of the plate spring so that a torque is generated by the frictional contact between the reel disc and the plate spring, whereby assembly productivity can be enhanced and manufacturing costs can be reduced.

Abstract: A magnetic recording/reproducing apparatus or an electric apparatus includes a reel gear, an intermediate gear, a swing arm, an idler gear and an input gear. The swing arm, idler gear and input gear constitute an idler mechanism. The intermediate gear is arranged apart from the reel gear. The swing arm is arranged between the reel gear and the intermediate gear. The swing arm is swingable between the reel gear and the intermediate gear around a center axis. The idler gear is attached to the swing arm. The idler gear is continuously kept in contact with at least one of the reel gear and the intermediate gear. The input gear is rotatable about the center axis, and is brought into contact with the idler gear.

Abstract: An idler mechanism for a magnetic tape device. An idler gear is swingingly displaced between first and second positions to selectively transmit rotation to one of a pair of reels. One end of an arm-like swinging member is coupled in a relatively rotatable manner to a center shaft of an input gear which always meshes with the idler gear and which is rotated forwardly and reversely. A shaft which is disposed on the other end of the swinging member is inserted in a relatively rotatable manner into a bearing hole of the idler gear. A surface of a flange which is disposed on the input gear is formed as a friction force applying face which extends radially outwardly so as to be inclined downwardly. An outer peripheral portion of the idler gear slidably comes into contact with the friction force applying face.

Abstract: An idler device of the magnetic recording/reproducing apparatus is disclosed having the construction that an idler arm is inserted to the side of a clutch shaft which is installed at a lower surface of a main chassis. Without an extra construction for the assembly, a snap engagement is possibly made, so that a workability of an assembly working is improved and the number of parts can be reduced, and thus, a production cost can be reduced. In addition, the assembly of an idler gear is completed as a plate spring is fixed to an idler shaft in a state that the idler gear is inserted in the idler shaft of an idler arm. Thus, the assembly working is relatively facilitated, and a production cost can be reduced with the simple construction. Moreover, since the plate spring is installed in a state of being fixed at the protrusion bar by the stopper, the relative position of the plate spring is precisely set with respect to the neighboring parts, so that an operation reliability can be remarkably improved.

Abstract: A recording and/or reproducing apparatus (1) can hold a magnetic-tape cassette (2), which accommodates a supply reel (3) including a first magnetic circuit element (42) and has a disc-shaped drive member (47) including a second magnetic circuit element (49), the two magnetic circuit elements (42, 49) forming magnetically acting holding means (43) for holding the supply reel (3) in the apparatus (1) and the disc-shaped drive member (47) having magnetic-force-of-attraction limiting means (51) which serve to and are adapted to cooperate with the first magnetic circuit element (42) and which enable the magnetic force of attraction produced between the two magnetic circuit elements (42, 49) to be limited.

Abstract: An idler device of the magnetic recording/reproducing apparatus is disclosed having the construction that an idler arm is inserted to the side of a clutch shaft which is installed at a lower surface of a main chassis. Without an extra construction for the assembly, a snap engagement is possibly made, so that a workability of an assembly working is improved and the number of parts can be reduced, and thus, a production cost can be reduced. In addition, the assembly of an idler gear is completed as a plate spring is fixed to an idler shaft in a state that the idler gear is inserted in the idler shaft of an idler arm. Thus, the assembly working is relatively facilitated, and a production cost can be reduced with the simple construction. Moreover, since the plate spring is installed in a state of being fixed at the protrusion bar by the stopper, the relative position of the plate spring is precisely set with respect to the neighboring parts, so that an operation reliability can be remarkably improved.

Abstract: A coupling for driving a magnetic tape reel uses the interface between a flat surface on the coupling and datum pads on the reel to locate the reel. The coupling includes a drive ring with ring teeth located around a drive shaft. The ring teeth engage mating teeth on the tape reel. The coupling also includes a datum ring having an annular surface located about the drive shaft. The annular surface contacts datum pads on the tape reel to axially position the tape reel relative to the drive shaft.

Abstract: A rotational load applying mechanism for a tape recorder having a rotation transmission gear for rotating a reel base in engagement with a gear of the reel base, causing a rotary shaft of the rotation transmission gear to move with operational force acquired by a rotational load of the rotation transmission gear, comprises a rotary arm member made of plastic and rotatable together with the rotary shaft of the rotation transmission gear; and an elastic holder, formed on the arm member, for holding, with a pressure, an outer surface of a boss to be a bearing for the rotary shaft of the rotation transmission gear, thereby applying the rotational load to the rotation transmission gear.

Abstract: A capstan motor which includes: a stator yoke having a multiple number of coils provided on a circle centered about a rotational shaft; and a rotor yoke having an annular magnet opposing the multiple number of coils and rotating integrally with the rotational shaft, and is constructed such that a hysteresis plate is provided opposing the rotor yoke on the side opposite the multiple number of coils for receiving leakage of the magnetic flux from the magnet and is attached rotatably relative to the rotary shaft; and driving force for rotation is extracted from the hysteresis plate, and a tape driving system using it.

Abstract: An autoreverse mechanism for a tape recorder having two fly-wheels and two pinch rollers for winding a tape in forward and reverse directions comprises a head mount plate designed in such a way that when the head mount plate moves toward a reproducing/recording position from a stop position and is locked there, the head mount plate moves while being inclined upper rightward or upper leftward, and is locked, and the two pinch rollers are separately pressed against the respective fly-wheels by using that inclination, thereby winding the tape.

Abstract: A system for providing stable tape-travel in a recording and/or reproducing apparatus includes a tape travel-direction switching mechanism and a tape tension regulating mechanism. The tape travel-direction switching mechanism forces a pendulum gear to engage one of a supply or take-up reel table when the traveling direction of tape is switched between forward and reverse directions while a capstan motor is turned off and a pinch roller presses the tape against the capstan so as to prevent the occurrence of slack in the tape. The tape tension regulating mechanism takes up the slack in the tape before a capstan axle causes the tape to travel in the reverse direction, so as to prevent the tape from being loosened when the traveling direction of the tape is switched from the forward direction to the reverse direction.

Abstract: A deck mechanism of a headphone stereo which is capable of minimizing a tension working on a belt and of controlling a rotation torque transmitted to a reel in an FF or REW mode by transmitting a driving force of a driving motor by a power transmission gear unit, includes a power transmission gear unit for transmitting a driving force of the driving motor, a mode selector for transmitting the driving force transmitted by the power transmission gear unit according to a selected mode, a reel driver for driving a reel according to the selection of the mode selector, a power transmission idler unit moving according to the play direction of the reel driver, and a capstan driver for driving a capstan through a belt transmission by a selective engagement of the power transmission idler unit.

Abstract: A film feeding device for a camera uses first and second electric motors associated with first and second planetary gearing mechanisms, respectively. In one embodiment, the first motor and first planetary gearing mechanism drive a spool shaft of a film cartridge to supply film to a winding spool. The winding spool is driven by the second motor and second planetary gearing mechanism to wind film onto the winding spool, at which time the first motor is stopped and the first planetary gearing mechanism is automatically disconnected from the spool shaft. For rewinding, the second motor is operated in reverse and the second planetary gearing mechanism is automatically disconnected from the winding spool and connected to the spool shaft of the film cartridge.

Abstract: A reel table driving device for use in a video cassette recorder comprises a pair of idlers disposed adjacent to a supply reel table and a take-up reel table in order to minimize the travelling distance thereof as a support plate for rotatably holding the idlers is rotated by the conversion of the operating mode, said idlers being constructed of a stepwise relationship with each other so that each reel table generates a sufficient torque during the switching of the operation mode, thereby preventing slackness of a loaded magnetic tape.

Abstract: A cassette drive mechanism for cassettes wherein cassettes can be played back which have different sizes and for which different tape drive systems are otherwise required. By placing the different cassettes into a common cassette receiving device, the adaptation of the drive and tape scanning systems is automatically carried out at the side of the drive mechanism.

Abstract: A reel driving device is provided with a driving pulley, an actuating member rotatable about a shaft, having a slant slot formed through, a driving torque converter for generating a proper torque depending on a mode of the VCR and for rotating the actuating member, a driving gear member having a gear portion meshed with an idler, and a connecting bar whose inner end is retained in the slant slot and mounted to be movable along the shaft and to be rotatable about the shaft.

Abstract: A gear for power delivering apparatus comprises body unit, gear unit engaging with another gear at the outer periphery of the body unit, and impact absorbing member between the body unit and the gear unit. The impact absorbing member, including space between the body unit and the gear unit and a plurality of arms in space, absorbs the impact applied to teeth of the gear unit. The arms are helically formed, so that absorption of the impact applied to the gear depends on the rotation direction of the gear.

Abstract: A magnetic tape cassette apparatus which has a magnetic head switchable between two groups of channels, respectively for forward and reverse play. Music searching, which detects pauses of at least a minimum duration in a group of recording tracks, is operable during fast forward or fast reverse along the track previously selected. In the fast winding mode the switching member for channel group selection is held in the position it occupied prior to actuation of fast winding.

Abstract: A reel-table driving mechanism of a tape recording/reproducing apparatus is operative to selectively drive two reel-tables. An idler has an idler friction wheel sharing a common shaft with an idler gearing portion. Each reel-table has a reel friction wheel rotating while making contact with the idler friction wheel which ensures the idler gearing portion meshes with the reel gear while maintaining an appropriate distance between the shafts of the reel table and the idler.

Abstract: A magnetic tape apparatus in which data is recorded on or reproduced from a magnetic tape when the magnetic tape is run on a rotary drum, includes a tension regulating unit which regulates a tension of the magnetic tape when the magnetic tape is run, the tension regulating unit pressing the magnetic tape at a first position in a tension-applying direction. A slack preventing unit exerts a rotating force on the tension regulating unit at a second position such that the rotating force exerted at the second position acts on the tension regulating unit at the first position to further press the magnetic tape in the tension-applying direction, thus preventing a slack of the magnetic tape from being produced when changing a tape winding direction of the magnetic tape.

Abstract: A camera film transport mechanism includes a torque limiting one-way drive clutch for preventing film damaging excessive torque loading or reverse rotation of the drive. The clutch includes coaxial inner and outer members. A resilient arm extends generally tangentially from one of the members with a free end biased against the other member and engagable with a tooth or abutment thereon to transmit torque therebetween. A sloping surface on one or both of the tooth and the arm end limits torque transmission by camming the arm out of engagement when the friction force is overcome. Multiple arms and/or abutment teeth may be provided and the arms may be arranged for either compressive or tensile loading. Slip torque deviation is limited by making the engaging surfaces from diverse materials, for example, an amorphous polymer, such as polycarbonate styrene, for one surface and a semi-crystalline polymer, such as nylon or acetal, for the other.

Abstract: A brake mechanism of drum type magnetic recording and reproducing apparatus having a take-up reel, supply reel, each having a gear and reel body, and frictional force thus produced between said gear and real body during relative rotation. And a rocking gear mechanism selectively engages with the gear of said take-up reel or supply reel, and a brake plate mounted on said rocking gear mechanism, and including a first and second clutch teeth thereon, when said rocking gear mechanism engaged with said supply reel or take-up reel, said brake plate driven in rotation to enable said clutch teeth to engage with the gear of take-up reel to produce a brake force. With the aforesaid assembly, it may provide different back tension of tape under different modes of operation for said magnetic tape machine.

Abstract: An idler gear transfer control apparatus for a reel drive apparatus of a VCR, is disclosed, wherein the VCR includes a reversible motor, a base, a shaft disposed at the base, an input gear rotatably disposed on the shaft for receiving a driving force from the motor, and an idler arm having one end rotatably connected to the shaft and another end carrying an idler gear connected to the input gear, the idler arm being movable about the shaft for engaging the input gear, the idler arm being movable about the shaft for engaging the idler gear selectively with a supply reel gear or a take-up reel gear, whereby the driving force of the motor is selectively transferred to the supply reel gear or the tape-up reel gear in accordance with a rotation direction of the input gear.

Abstract: A video cassette player includes a main base, a head drum assembly including a rotary drum, a stationary drum, a rotating shaft and a driven gear pressed on and fixed to a lower end portion of the rotating shaft, a capstan motor provided with a capstan shaft, a driving pulley fixed to a lower end portion of the capstan shaft, an idler assembly provided with a bracket, a hinge shaft, an idle gear, an intermediate gear and a first driven pulley, a driving assembly including a shaft, a driving gear and a second driven pulley, and a first and a second belts. The shaft of the driving gear assembly is rotatably fixed to the main base, and the driving gear and the second driven pulley are, in turn, fixed to a lower portion of the shaft, the driving gear being engaged with the driven gear of the head drum assembly.

Abstract: A kind of tape winding linkage of drum type magnetic recording and reproducing apparatus, comprising a tape winding gear, a first and a second links both with two joints, a third link with two joints having spring effect. The first link is attached to the shaft of the tape winding gear while the second link is connected to the first link by its first pivot joint and connected to the third link by its second pivot joint, also its second link's guided pin is being embedded in the guided slot of the deck such that it can move along the guided slot of the deck. What is more, the third link is connected to the inclined pole base by its third pivot joint. As the loading gear is driven by the power source's mechanism, the third link which possess spring effect is compressed and produced reacting force such that it makes the inclined pole base to move along the guided slot of the deck at the tape winding and unwinding position so as to divert the tape out of the cassette and wind around the magnetic drum.

Abstract: Preselected teeth of a gear tooth are truncated by removing their radially outermost ends. Thus, whenever teeth that should mesh become misaligned, the truncation allows the teeth to quickly return to their proper meshing. This reduces the sound generated by nonmeshing teeth. In a tape player using gears having preselected truncated teeth, an idler arm carries an idler gear at its free end and is pivotal into first, neutral, and second positions. At low speed operation, when a cassette is in the player, a pair of driving gears are not intermeshed, and the first position of the idler gear causes recording or playing back and the second position causes rewinding. At high speed operation, when no cassette is in the tape player, the driving gears are intermeshed, and the first and second positions of the idler arm cause fast forwarding and rewinding, respectively.

Abstract: In a magnetic recording/reproducing apparatus, an idler gear is selectively moved between controlling a take up reel and a supply reel. An idler controlling apparatus limits the swing angle of the idler to a relatively small angle when the upper chassis is being seated on the lower chassis or when the tape is being ejected. The idler controlling apparatus also permits a wide swing angle of the idler when the tape recording/reproduction operations take place. The wide swing permits the idler gear to selectively control the take up and supply reels.

Abstract: A video cassette recorder is provided with a device for driving selectively one of a supply reel disc and a take-up reel disc rotatably mounted to a deck thereof, which includes a pulley coupled to a shaft of the deck, a driving gear coupled to the shaft of the deck, a clutch assembly jointed the pulley and the driving gear, an idle gear meshed with the driving gear and disposed between the supply reel disc and the take-up reel disc for a selective engagement with the one of the reel discs by a rotating torque of the pulley, a support plate pivoted at the shaft of the deck for supporting the idle gear, and a plurality of resilient pieces integral with the idle gear and in contact with the support plate. The support plate is provided with a screw secured thereto for adjusting the frictional force generated between the idle gear and the support plate. The support plate includes a cylindrical rib formed at a lower portion thereof.

Abstract: A tape loading arrangement includes supply and take-up reel tables, a rotating magnetic head drum, a capstan motor, sliders including tape guides and a pendulum gear for engaging limiter gears associated with each of the reel tables. Magnetic torque limiters are provided at each of the reel tables and the torque ranges of each of the reel tables are set individually, the supply reel having a wider torque range than the take-up reel. According to this construction, the capstan motor generally controls the pendulum gear to engage the supply reel during a tape loading operation, wherein tape to be wound around the head drum is extracted from the take-up reel of the tape cassette.

Abstract: A film feeder for cameras comprises a drive shaft for driving a film cartridge which is engaged with a spool shaft of the film cartridge to rotationally drive the spool in the forward direction or the reverse direction, thereby rotationally driving the spool in the film lead-out direction or in the film rewinding direction, respectively; an electric motor for rotationally driving the foregoing drive shaft and capable of rotating forwardly or reversely; a rotation transmission system for transmitting a rotational force derived from the motor; and a switch device for selecting either of two transmission paths for driving the drive shaft of the cartridge in compliance with the rotational direction imparted by the motor.

Abstract: The invention relates to a magnetic-tape-cassette apparatus comprising a deck for magnetic-tape cassettes and constructed for playing and fast winding modes in forward and reverse directions, in which the switching between the forward and reverse tape transport directions is accomplished by means of a switching lever. The switching lever controls pressure rollers mounted on a pivotal bracket which serves to pivot the pressure rollers into and out of engagement with the capstans. The pressure roller bracket includes a fork which is actuated by the movement of the switching lever. The switching lever also carries an intermediate wheel rotatably mounted thereon and a pivoting wheel pivotally mounted on the switching lever which is in engagement with the intermediate wheel. The pivoting wheel is engagement with one of the reel discs when the switching lever is in the forward direction and the other of the reel discs when the switching lever is in the reverse direction.

Abstract: A film feeding device for a camera uses first and second electric motors associated with first and second planetary gearing mechanisms, respectively. In one embodiment, the first motor and first planetary gearing mechanism drive a spool shaft of a film cartridge to supply film to a winding spool. The winding spool is driven by the second motor and second planetary gearing mechanism to wind film onto the winding spool, at which time the first motor is stopped and the first planetary gearing mechanism is automatically disconnected from the spool shaft. For rewinding, the second motor is operated in reverse and the second planetary gearing mechanism is automatically disconnected from the winding spool and connected to the spool shaft of the film cartridge.

Abstract: A system for providing stable tape-travel in a recording and/or reproducing apparatus includes a tape travel-direction switching mechanism and a tape tension regulating mechanism. The tape travel-direction switching mechanism forces a pendulum gear to engage one of a supply or take-up reel table when the traveling direction of tape is switched between forward and reverse directions while a capstan motor is turned off and a pinch roller presses the tape against the capstan so as to prevent the occurrence of slack in the tape. The tape tension regulating mechanism takes up the slack in the tape before a capstan axle causes the tape to travel in the reverse direction, so as to prevent the tape from being loosened when the traveling direction of the tape is switched from the forward direction to the reverse direction.

Abstract: A magnetic-tape-cassette apparatus constructed for play and fast winding operation with a first and an opposite second tape transport direction, for which purpose there are provided, in addition to a first and a second reel disc (12a, 12b) for the magnetic tape, which can be driven selectively by a reel-drive mechanism (09), a first and a second capstan (3) which can be driven in opposite directions of rotation, the reel-drive mechanism (09) comprising in the transmission path between a unidirectional motor (23) and the reel discs (12a, 12b) a play coupling which is driven by the motor (23) and which comprises a primary coupling wheel (9) and a secondary coupling wheel (10), the secondary coupling wheel (10) driving the forward reel disc (12a) in the forward play direction via a pivotal mechanism (16, 17) which is pivotable supported on a switching lever (29), and the secondary coupling wheel (10), which is constantly in mesh with a reversing wheel (15), driving the reverse reel disc (12b) for the reverse win

Abstract: A magnetic-tape cassette apparatus having a deck for magnetic-tape cassettes with a reel drive mechanism for transporting a tape with a first and an opposite, second tape transport direction. The change-over from the first tape transport direction to the opposite second tape transport direction is affected by a switching mechanism which switches the reel-drive mechanism between a play mode in the forward direction and a play mode in the reverse direction. The switching mechanism includes a switching lever moveable from a first position for the first playing direction to a second position for the opposite second play direction. The switching lever is moved by a pair of switching wheels, whose teeth are engageable with associated teeth of adjacent flywheels for changing over the switching lever from the predetermined position for one playing direction to the predetermined position for the opposite other playing direction by actuating elements provided on the switching wheels.

Abstract: A device for exchanging a tape drive mode so to maintain a satisfied timing by which a tension mechanism for applying a tension to a tape between tape reels is kept to its tension place until the tape transport by a capstan roller together with a pinch roller is exerted after the power transmission is exchanged to either one of the tape reels for shifting the device from the playing/recording mode to the rewinding mode.

Abstract: A method and winding apparatus for detecting feed bobbins having feed properties that do not correspond to a predetermined quality when winding feed bobbins onto cross-wound bobbins in an automatic bobbin winding machine is disclosed. The method comprises the steps of measuring the winding speed, counting yarn breaks before a predetermined threshold speed is reached for forming a yarn break count, detecting the quality of a given feed bobbin by comparing the yarn break count with a predetermined number and determining that the given feed bobbin has not attained a predetermined quality if the yarn break count reaches the predetermined number; if the quality is not attained, the given feed bobbin is rejected and the winding process is continued with a new feed bobbin.