Abstract: A disk type record medium lodging apparatus includes a body, a pair of record medium size detecting members (8), a pair of stoppers (15), a pair of gearing mechanisms, and a separating unit. The introducing positon of the disk type record medium having a small outer diameter through the slit entrance is not limited, and the exactness on according the centers between the turntable and the disk type record medium having a small outer diameter is improved with simple construction.

Abstract: In a tape recorder, a tape tensioning device for tensioning the tape in a tape cassette comprises a movable member for causing a tension detection switch to open when the movable member is moved in a first direction, and a gear mechanism composed of first and second gears and a tensioning gear meshable with the first and second gears upon movement of the member in a second direction, to rotate one reel spindle. The tensioning gear is movable about the first gear upon inhibition of rotation of the spindle. The device further includes a brake for inhibiting rotation of the other spindle, and a retaining mechanism responsive to movement of the gear for further moving the member in the first direction to retain the member in such a position that the gear is moved away from the first and/or second gears, to release the other spindle from the brake mechanism and to return the member to the second direction upon unloading of a tape cassette.

Abstract: A tape recorder is provided with a device for eliminating any slack of a tape inside a tape cassette before initiation of a reproducing operation. In the state that forward movement of a head mounting plate is inhibited by a lock member and rotation of one of paired reel spindles is inhibited by a brake, a reel gear of the other reel spindle is driven via a slack eliminating gear supported on a movable member. When the tape inside the tape cassette has been taken up over a length equal to the slack on the other reel spindle and the other reel spindle has been stopped, the slack eliminating gear receives a reaction force from the reel gear to move the movable member. This movement of the movable member releases the lock member so that the head mounting plate is allowed to move substantially further and the brake is also disengaged from the one reel spindle to start a reproducing operation.

Abstract: A tape recorder which includes an improved rotary member supporting device, reel receiver mounting mechanism and a base plate. The supporting device includes a base plate having an integral tubular body surrounding a hub portion of a rotary member, and a conical recess is formed at the center of a bottom wall of the tubular body. The reel receiver mounting mechanism include a metal shaft having a groove and a head formed at the opposite ends thereof, and the base plate has a cylindrical portion in which the metal shaft is securely fitted with a coming off preventing member engaged in the groove. The base plate include a main synthetic resin plate held between and integrated with first and second auxiliary metal plates. Pairs of spacings for various tape recorder components are formed in the main plate while several support shafts are provided on the first auxiliary plate and several plate-formed operating levers are disposed between the main and second auxiliary plates.

Abstract: A rotary transmitting mechanism for an auto-reverse tape recorder having a change-over gear and associated charge-over supporting member disposed on the head-mounting plate is provided. The mechanism utilizes motor driven left and right transmission gears, a change-over gear supporting member movably supported on the head-mounting plate, and a change-over plate movably mounted on the upper surface of the chasis. When the change-over plate moves in either a left- or right-hand direction, the change-over gear supporting member is likewise moved to allow the change-over gear to be separated from the reel gear and transmission gear on one side while meshing with the other side's reel gear and transmission gear. To elastically absorb the excess movement of the change-over plate, the change-over gear supporting member has two elastic arms protruding from both sides. By providing such a mechanism, more efficiently and lower cost are obtained.

Abstract: Tape recorder able to actuate a plurality of mechanisms, such as an ejector mechanism, a head moving mechanism, and a high-speed rotation transmission mechanism, by the turning force of the motor for transporting tape. The cam gear is rotatable by the motor for transporting tape, a rocking lever is engaged with the cam gear, and an electromagnet for EJECT motion, an ejector mechanism connected operatively to the rocking lever by the electromagnet for EJECT motion, an electromagnet for PLAY motion, and a head moving mechanism connected operatively to the rocking lever by the electromagnet for PLAY motion are also provided. The turning force of the motor is transmitted to the ejector mechanism, or the head moving mechanism through the cam gear and the rocking lever.

Abstract: A reversing device for tape recorders includes a pivotable elongate resilient member having one end connected with a reciprocally movable changeover plate so as to move concurrently therewith in a direction perpendicular to the direction of movement of a head mounting plate, and a pivoted central portion movable relative to the head mounting plate in a direction perpendicular to the direction of movement to the head mounting plate. The elongate resilient member has a pair of abutment portions on opposite sides of the pivoted central portion. The head mounting plate has a pair of guide portions engageable with the abutment portions, respectively, in such a manner that in response to the position of displacement of the changover plate, either of the two abutment portions engages a corresponding one of the guide portions to cause the elongate resilient member to pivot in a direction to disengage one pinch roller from the corresponding capstan.

Abstract: Disclosed is a thin tape recorder of which the chassis is mounted aslant in a case body of a tape recorder case, that is, the chassis declines with an approximate gradient of (L.sub.1 -L.sub.2)/2L so that the space between the chassis and a front wall of the cover becomes gradually wide toward the magnetic head, where L.sub.1 is the thickness of the front end of the tape cassette, L.sub.2 is the thickness of the rear end of the tape cassette, and L is the length from the rear end of a thick portion to the rear end of a thin portion.

Abstract: A bi-directional tape recorder wherein abrasion of portions of a magnetic head on the opposite sides of the air gap is reduced and "soil" sticking to a tape contacting face of the magnetic head is automatically removed to attain elongation of the life of the magnetic head. The magnetic head is changed over between a pair of positions inclined with respect to a fixed axis perpendicular to the tape feeding direction by a shiftable member which is shifted in one or the other direction in response to reversing operation of the tape feeding direction. The magnetic head is connected to be moved in a widthwise direction of a magnetic tape by the shiftable member to allow reproduction of a pair of regenerative tracks of the magnetic tape. A pair of azimuth adjusting mechanisms are provided on the opposite sides of the magnetic head for making azimuth adjustment of the magnetic head independently of each other, and one of them is associated with the shiftable member.

Abstract: A tape recorder having a controller for a movable member is able to control the movement of the member between two states by one electromagnet. The controller includes an electromagnet having first and second attracting parts which correspond to first and second attracted parts, a driving member which is driven through a fixed motion by a driving source, a combining part for moving which is installed on said movable member so as to separate from the driving member or be maintained in the combined state with said driving member by said first attracted part, a combining part for keeping position which is installed on said movable member to maintain said movable member in the second position by combining with the second attracted part and a leaving prevention part for preventing the leaving from said driving member of said combining part for moving when said movable member is at a position from halfway between said first and second positions to its second position.

Abstract: An apparatus for preventing tape from being rolled on a capstan or pinch roller including a pinch roller having a ratchet wheel rotated integrally with the pinch roller, a tape contacting plate having a pawl capable of engaging the ratchet wheel, and a resilient plate for providing a biasing force in response to tape tension is provided. The pinch roller is usable to rotate when the tape becomes lose and is able to rotate when the tape becomes taut.

Abstract: A magnetic head of a tape recorder is turned over 180.degree. upon each change-over of the running direction of a magnetic tape so as to effect the change-over from one playback track to another or from one recording track to another. A tapered surface is formed on at least one of a turning member with the magnetic head mounted thereon and a bearing member with the turning member supported turnably thereon. An urging means such as spring or solenoid is provided to urge the turning member in the axial direction thereof, whereby the tapered surface is maintained in contact with the associated member.

Abstract: A magnetic recording and reproducing device wherein operation timings of various mechanisms can be set with a high degree of accuracy and construction for driving the individual mechanisms is simplified with a reduced number parts. The device comprises a single cam plate having cams for selectively operating a turning force transmission change-over mechanism, a tape loading mechanism, a pinch roller driving mechanism, a rotational speed change-over mechanism, a brake mechanism and a back tension mechanism. The cam plate is driven to rotate by a motor and transmits the turning force of the motor as a driving force to the mechanisms listed. The brake device is also improved in that slackening of a tape is not caused for a time after completion of a fast feeding mode or a rewinding mode until a reproducing mode or a recording mode is subsequently started.

Abstract: A mechanism for detecting stopping of rotation of a normally rotating member which mechanism can be minimized in its axial direction and reduced in production cost. The mechanism comprises a normally rotating member normally rotating in one direction around a fixed axis, and a detecting member for detecting stopping of rotation of the normally rotating member. One of the two members has a resilient contacting portion for resiliently contacting and fitting with the other member under a radially acting resilient force of the same thereby to produce a contact pressure between the two members. The detecting member is urged in a direction by the normally rotating member when the normally rotating member is rotating, and the detecting member detects stopping of rotation of the normally rotating member from disappearance of the urging force by the normally rotating member.

Abstract: A tape feeding direction controlling device for an automatic reversing tape recorder wherein operation of a first or a second high speed operating member during a reproducing operation will cause high speed feeding of a tape in the same or in the opposite direction. The tape feeding direction controlling device comprises a feeding direction controlling member, a high speed change-over member, and a pivotal member connected to be bodily moved by the feeding direction controlling member. Depending upon whether the pivotal member is at its first or second position, it is pivoted in opposite directions by the first or second high speed operating member, and pivotal motion of the pivotal member in one or the other direction moves the high speed change-over member from its neutral position to a first or a second position in which it causes a tape feeding mechanism to feed a tape at a high speed in one or the other direction.

Abstract: A disc-type recording medium transfer mechanism includes a tray transfer device movable in a first direction parallel to the direction of stacking of a plurality of trays, and also movable in a second direction perpendicular to the first direction to transfer a selected one of the trays between its storage position within a magazine and a playback standby position outside the magazine. A tray storage position memory member is movable in the first direction and releasably engageable with the tray transfer device for movement in the second direction together with the tray transfer device only when the tray transfer device is disposed in a tray insertion/withdrawal position. Upon departure of the tray transfer device from the tray insertion/withdrawal position, the memory member is detached from the tray transfer device and left over in a position previously assigned when it is engaged with the tray transfer device before the tray transfer device departs from the tray insertion/withdrawal portion.

Abstract: A magnetic recording and reproducing device wherein operation timings of various mechanisms can be set with a high degree of accuracy and construction for driving the individual mechanisms is simplified with a reduced number parts. The device comprises a single cam plate having cams for selectively operating a turning force transmission change-over mechanism, a tape loading mechanism, a pinch roller driving mechanism, a rotational speed change-over mechanism, a brake mechanism and a back tension mechanism. The cam plate is driven to rotate by a motor and transmits the turning force of the motor as a driving force to the mechanisms listed. The brake device is also improved in that slackening of a tape is not caused for a time after completion of a fast feeding mode or a rewinding mode until a reproducing mode or a recording mode is subsequently started.

Abstract: An automatic stop mechanism for a tape recorder is described. When a magnetic tape has been wound up fully on a reel, slipping takes place between a gear and reel shaft so that the reel shaft stops. As a consequence, a contact portion of a cam follower is caused to separate from a cam surface and a cam is brought into contact with the contact portion. Since the fulcrum of the cam follower is fixed, a turnable lever is caused to turn clockwise so that a gear is separated form the gear. By the turning motion of the turnable lever, its bent end portion presses a lug of a lock member from the right, thereby shifting the lock member leftwards. A head mounting plate is hence released from its engagement with the lock member and is allowed to return to its non-operated position, whereby a magnetic head is allowed to return to its stop position.

Abstract: A tape recorder of the automatic reversing type which can attain reduction in time required and simplification in structure for turning over of a magnetic head and wherein possible dislocation of a magnetic head which is apt to readily appear where a head turning over system is employed can be prevented assuredly. The tape recorder comprises a head mount and a magnetic head structure mounted for rotation around an axis in the head mount and including a magnetic head. Each time the feeding direction of the tape is to be reversed, the magnetic head structure is rotated by an angle of 180 degrees to turn over the magnetic head from one to another track of a tape in a tape cassette loaded in position in the tape recorder with the magnetic head held in contact with the tape. A pair of fixed tape guides for contacting with the tape to inhibit lateral widthwise movement of the tape are secured at opposite positions of the head mount with respect to the magnetic head.