摘要:
A chassis is provided with a pair of leading guide blocks slidably fitted in respective guide slots for withdrawing a tape from a cassette, loading links for slidingly moving the respective guide blocks, and catchers arranged on the chassis at a loading completed position for the respective guide blocks to come into pressing contact with. Each of the loading links comprises a pivotal lever rotatably fitting around a pivot on the chassis and a link plate connected by a pivot pin to a free end of the pivotal lever and rotatably engaged at a forward end thereof with the guide block. The chassis is formed with apertures permitting insertion of the respective guide blocks therein, each covered with the catcher and each communicating with the guide slot. The aperture is positioned at a greater distance from the pivot than the forward end of the link plate when a center line L1 connecting the pivot and the pivot pin and a center line L2 connecting the pivot pin and the portion of connection between the guide block and the link plate extend toward the direction of loading in alignment with each other.
摘要:
A front mechanism mounted on a chassis loads a cassette in place by causing a first projection and a second projection on each of opposite side portions of a cassette carrying tray to slide along respective guide grooves formed in each of side plates. Power is transmitted from a drive cam gear provided on the rear side of the chassis to the tray via a drive mechanism, intermediate gear and rotary gear. For loading, the tray initially starts to move as inclined with the first projection and the second projection sliding along slanting grooves and is thereafter lowered by sliding movement of the projection along a vertical groove and sliding movement of the projection along a descent groove while being corrected from the inclined position to a horizontal position. Upon completion of cassette loading, the intermediate gear and the rotary gear constitute a Geneva stop, and the drive cam gear disengages from the drive mechanism. A support guide supporting the drive mechanism is provided by being formed by outsert molding inside the chassis and thereafter being rotated to project from a side portion of the chassis.
摘要:
A chassis is slidably provided with a circular-arc control slide bulging toward a rotary cylinder and having projections spaced apart from each other. Reel supports and a reel drive mechanism are arranged on the curving-in side of the slide. Disposed on the path of movement of the slide is a drive cam gear formed with cam grooves each extending from an outer peripheral opening toward its center. The slide is formed thereon with a toothed projection which meshes with the cam gear during a period after one of the projections is fitted in the corresponding cam groove and until the other projection is fitted in the corresponding cam groove. The slide is further formed with a cam groove having engaged therein a soft brake lever for giving a light load to the reel support in REV mode, a brake lever for lightly braking a capstan motor in SLOW mode, a tension regulator lever for lightly braking the reel support in FF/REW mode, and a withdrawing lever for withdrawing a magnetic tape from a cassette for loading to operate these levers.
摘要:
In a video tape recorder of the invention, a position adjusting mechanism for adjusting the X distance comprises a support plate 6 having a control head mounted thereon, a pivot pin 16 pivotally supporting an end of the support plate 6 on a chassis 1, a clamp piece 7 holding a portion 60 of the support plate 6 on the chassis 1 by clamping to give resistance to the pivotal movement of the support plate 6, and a screw 91 engaging another end of the support plate 6 with play for permitting the pivotal movement of the support plate 6 and fixing the end to the chassis 1 at an optional position within the range of the play. The clamp piece 7 comprises a receiving portion 71 for receiving the rear surface of the portion 60 of the support plate 6 and a holding portion 72 for holding the front surface of the support plate portion 60 under pressure. The portion 60 of the support plate 6 is inserted between the receiving portion 71 and the holding portion 72 by a press fit.
摘要:
A tape drawing-out mechanism for positioning a magnetic tape 91 as tensioned in a specified path of travel has a drive lever 6 having a cam follower 62 projecting therefrom, a tape drawing-out lever 5 having a tape drawing-out pin 51 for receiving the force of the drive lever 6 in a first step of a tape drawing-out movement, and an auxiliary lever 7 for receiving the force of the drive lever 6 in a second step of the tape drawing-out movement. The auxiliary lever 7 has a pin 71 projecting therefrom for pressing a face 54 provided on the tape drawing-out lever 5 to pivotally move the lever 5 to a tape drawing-out end position. The mechanism described precludes a great reaction from acting on the cam follower 62 and a cam groove 41 for giving a tape drawing-out drive force.
摘要:
A tape recorder of the invention comprises a fixed guide member 5 disposed for a path of travel of a magnetic tape 10 between a tension post 43 and a full-width erasing head 21 and having a tape guide face 54 to be brought into sliding contact with the lower of a pair of side edges of the tape 10 between the main surface thereof, with the lower side edge positioned closer to the chassis 1. The fixed guide member 5 regulates the level of the tape 10 widthwise thereof by receiving the lower side edge of the tape by the tape guide face 54 while being held out of contact with the main surface of the tape 10. The recorder can be manufactured at a lower cost without impairing the accuracy of the path of travel of the tape.
摘要:
A circuit board is mounted in a cabinet in which a disk is housed. A treatment for preliminarily releasing ammonia possibly causing fogging of the disk from the circuit board is performed by allowing the circuit board to stand at 70° C. outside the cabinet for 24 hours before the circuit board is mounted in the cabinet.
摘要:
A recording and reproducing apparatus comprises the function of continuing, when a normal recording start command is inputted during full-time recording and time shift reproduction, the full-time recording as well as transferring to a normal recording area data from a time shift reproduction position, at the time that the normal recording start command is inputted, in a full-time recording area to a recording point on the full-time recording area at the time point where a normal recording stop command is inputted.
摘要:
A mechanism chassis 1 comprises a polygonal flat plate portion 11 for arranging a plurality of mechanisms on a surface of thereof, and a plurality of side plate portions 12, 13, 14, 15 bent from the respective contour sides of the flat plate portion 11 toward a rear side of the flat plate portion 11. The flat plate portion 11 has a high-precision chassis region where those of the mechanisms of which a relatively high precision is required are to be arranged, and a high-strength chassis region where others of the mechanisms are to be arranged satisfactorily with a relatively low precision. The pair of side plate portions adjacent to each other at each corner included in the high-precision chassis region are separated from each other, and the pair of side plate portions adjacent to each other at each corner included in the high-strength chassis region are joined to each other.
摘要:
A battery pack includes terminals (33) and a lock hook (37b). The terminals (33) are fastened onto a circuit board (74) and connected to rechargeable batteries (39). The terminals are exposed externally of a casing (31). The hook (37b) protrudes from a surface of the casing (31), and holds the battery pack on a charger (100). A hook opening window (24) is open in one of the surfaces of the casing. The hook (37b) can protrude from the surface of the casing (31). A drain hole (28) is open in another surface of the casing. A partition rib (25) is arranged between a path and an electronic circuit. The path is separated from the circuit. The path extends inside the casing (31) from the window (24). The circuit is mounted on the board (74). The window (24) communicates with the hole (28) through the path.