Patents Assigned to Tanashin Denki Co., Ltd.
  • Publication number: 20020015375
    Abstract: The present invention relates to a disc ejecting apparatus for quickly ejecting a disc by utilizing a pick-up drive motor. A slip mechanism is provided in a first route leading from the pick-up drive motor to a pick-up, and a switching mechanism is provided in a second route leading from the pick-up motor to a disc ejecting mechanism.
    Type: Application
    Filed: May 30, 2001
    Publication date: February 7, 2002
    Applicant: TANASHIN DENKI CO., LTD.
    Inventors: Shinsaku Tanaka, Takashi Yamanaka
  • Publication number: 20010050898
    Abstract: The present invention relates to a disc ejecting apparatus for ejecting a disc by utilizing a pick-up drive motor. It is proposed to simplify the construction of the disc ejecting apparatus. A slip mechanism is provided in a route leading from the pick-up drive motor to a pick-up, and in the last stage of restoration of the pick-up to an initial position the disc ejecting mechanism is connected to the pick-up drive motor.
    Type: Application
    Filed: June 1, 2001
    Publication date: December 13, 2001
    Applicant: TANASHIN DENKI CO., LTD.
    Inventor: Shinsaku Tanaka
  • Patent number: 6330216
    Abstract: Provision of a recording medium transfer apparatus, which uses a one-direction motor as a drive source and is simple in construction and inexpensive. The apparatus comprises a rotation member driven for rotation by the one-direction motor, an idler gear, and transfer means. The rotation member has a partial gear and a push member. The partial gear is held in mesh with the idler gear only during rotation of the rotation member for a predetermined angle. The transfer means has a gear portion in mesh with the idler gear and a contact portion. The transfer means is caused, with the contact portion thereof pushed by the push member, to undergo rocking movement in one direction and, after separation of the push member from the contact portion, the transfer means is rocked in the other direction with the partial gear in mesh with the idler gear. The recording medium is thus reciprocally transferred by the transfer means with reciprocal rocking movement thereof caused during one rotation of the rotation member.
    Type: Grant
    Filed: November 25, 1998
    Date of Patent: December 11, 2001
    Assignee: Tanashin Denki Co., Ltd.
    Inventors: Shozo Nishimura, Takashi Yamanaka, Akeshi Shitamichi, Shigeru Akatani
  • Publication number: 20010014076
    Abstract: A disc clamping device according to the invention seeks to attain size reduction and simplification of the structure without spoiling the smoothness of centering a disc. A disc clamper has an upwardly projecting central hung pin penetrating a circular hole formed in a clamp support member and having a head greater in diameter than the circular hole. At least either one of the portions of the edge of the circular hole and the head of the hung pin in engagement with each other is formed with a tapered surface for centering the disc clamper. The clamp support member is provided with an elastic member, for instance a leaf spring, for pushing the head against the edge of the circular hole.
    Type: Application
    Filed: February 7, 2001
    Publication date: August 16, 2001
    Applicant: Tanashin Denki Co., Ltd.
    Inventor: Takashi Yamanaka
  • Patent number: 6192019
    Abstract: This invention provides a disc player in which a disc can be taken out readily and without possibility for the disc to fall out when unloading the disc. A Transfer apparatus pushes back a disc located in a playing portion up to a position, at which the center hole of the disc at least partly projects from a disc insertion slot. An elastic holding mechanism elastically holds a portion of the disc, having been pushed back, on the outer side of a recording area from the opposite sides of the disc, thus preventing the falling-out of the disc.
    Type: Grant
    Filed: November 25, 1998
    Date of Patent: February 20, 2001
    Assignee: Tanashin Denki Co., Ltd.
    Inventors: Yusuke Kurokawa, Akeshi Shitamichi, Eiji Shinohara, Kunio Kido
  • Patent number: 6147948
    Abstract: The invention concerns a disk loading device for a disk player, which permits accurate positioning of a disk at a playback position, as well as being small in size and simple in construction. In the device, an inserted disk pushes a first lever and, when the first lever has been rocked beyond a dead point related to a lever biasing means, the first lever is rocked by the elastic force of the lever biasing means. At this time, a second lever follows the first lever, and the disk is pushed forth up to and positioned at a playback position by the two levers. In this state, a drive means is started to cause a clamper to be lowered and hold the disk on a turntable. Subsequently, the two levers are retreated from the disk.
    Type: Grant
    Filed: October 26, 1998
    Date of Patent: November 14, 2000
    Assignee: Tanashin Denki Co., Ltd.
    Inventors: Shinsaku Tanaka, Kunio Kido
  • Patent number: 6084838
    Abstract: Provision of a disc transfer apparatus for a disc player, which is free from damage to disc, small in size and simple in construction. A push-back member and a main push member are rockably mounted on one side of the passage of disc, and a disc guide is provided on the other side of the passage of the disc. The push-back member and the main push member are coupled together by a cam mechanism, and the push-back member is reciprocally driven by a driving means. The disc is transferred to a playing portion by pushing its edge with the main push member, and is transferred from the playing portion toward a disc insertion slot by pushing its edge with the push-basc member.
    Type: Grant
    Filed: November 25, 1998
    Date of Patent: July 4, 2000
    Assignee: Tanashin Denki Co., Ltd.
    Inventors: Shinsaku Tanaka, Takashi Yamanaka, Akeshi Shitamichi, Shigeru Akatani, Kunio Kido
  • Patent number: 5883773
    Abstract: To simplify the construction of a manual operating device for an auto-reverse cassette tape recorder, in which the feed direction of the tape is reversed by depressing an FF operating member and a REW operating member at a time. A FF/REW locking mechanism is rocked to a greater extent when a REW operating member is depressed alone than when an FF operating member is depressed alone. An auto-reverse mechanism is operated with the greater extent rocking movement of the FF/REW locking mechanism.
    Type: Grant
    Filed: July 7, 1997
    Date of Patent: March 16, 1999
    Assignee: Tanashin Denki Co., Ltd.
    Inventors: Shinsaku Tanaka, Toshio Yoshimura
  • Patent number: 5805383
    Abstract: In an operation switching apparatus for a tape recorder installed on a car etc., the present invention intends to improve a construction of a control cam plate for controlling various operation modes, to simplify mechanisms installed in the apparatus, to stabilize a control operation and to easily design a reduced size of the apparatus. A reversible rotary drive motor (16) drives a control cam plate (80) forward and backward. On the control cam plate (80) are provided a head moving cam (90) and a mode selection cam (92). A tape direction switching mechanism (100) and a FF/REW switching mechanism (120) are controlled by a common mode selection cam (90). By the control cam plate (80), various operation modes are selectively carried out. The control cam plate (80) is operatively connected to a cassette loading cam plate (60). The control cam plate (80) and the cassette loading cam plate (60) are driven by a single drive motor (16). After a cassette loading, both cam plates are disconnected.
    Type: Grant
    Filed: November 26, 1996
    Date of Patent: September 8, 1998
    Assignee: Tanashin Denki Co., Ltd.
    Inventor: Toshio Yoshimura
  • Patent number: 5764612
    Abstract: A disc playing apparatus is disclosed, which is simple, small in size and can be manufactured at a low cost of manufacture. In this disc playing apparatus, a first chassis with left and right movable guides and a second chassis with a disc drive and a playing unit are linked together such that they can be brought toward and away from each other. The movable guides are separated from a disc when the two chassis are brought toward each other, and are brought to a position to engage with the disc when the two chassis are brought away from each other. A selective close/away holding mechanism holds the two chassis in a close-to-each-other state or an away-from-each-other state. The two chassis are brought toward each other when the disc is inserted while pushing the selective close/away holding mechanism. The disc is pushed by the mechanism when the two chassis are brought away from each other by an eject lever.
    Type: Grant
    Filed: April 26, 1996
    Date of Patent: June 9, 1998
    Assignee: Tanashin Denki Co., Ltd.
    Inventors: Choku Tanaka, Shinsaku Tanaka, Shigeru Akatani, Akira Iwakiri
  • Patent number: 5726967
    Abstract: A disk playback apparatus comprises a stocker including a plurality of shelves for compact disks, a pallet disposed adjacent to the stocker, a lift stage for moving the stocker up and down so that a selected one of the shelves is located in a position higher than the pallet for a predetermined distance, a loader capable of reciprocating between an unloading position on the stocker side and a loading position on the pallet side, and a lifter in the loader. As the loader moves from the unloading position toward the loading position, the lifter lowers and feeds the disk on the selected shelf to the pallet while drawing out the disk from the stocker. As the loader moves from the loading position toward the unloading position, the lifter raises and returns the disk on the pallet to the selected shelf while pushing back the disk toward the stocker.
    Type: Grant
    Filed: May 29, 1996
    Date of Patent: March 10, 1998
    Assignee: Tanashin Denki Co., LTD.
    Inventors: Shinsaku Tanaka, Tadao Arata, Akira Iwakiri, Makoto Saeki
  • Patent number: 5515357
    Abstract: A disk player assembly with withdrawable pallets including a pallet having a notch through which the selected disk contained in the disk stocker is passed, when the disk stocker and the disk playback mechanism are relatively moved up and down. The lower side of the pallet (14) is provided with a shielding member (91) which appears at a position at which the notch is kept out of sight in association with the drawing of the pallet out of the player assembly.
    Type: Grant
    Filed: January 26, 1994
    Date of Patent: May 7, 1996
    Assignee: Tanashin Denki Co., Ltd.
    Inventors: Tadao Arata, Shinsaku Tanaka
  • Patent number: 5506741
    Abstract: An operation mode change-over device for a tape recorder has a detection mechanism including a detection member comprised of a fine wire made of a spring material for detecting a stoppage of a reel rotation. The detection member is disposed in elastic contact at its intermediate curved portion and a tip end portion of a V-shaped outer half with the reel shaft. As the reel shaft rotates, the detection member receives rotary torque from the reel shaft to be angularly deviated, so that an end of an inner half of the detection member is engaged with a lever of the change-over device, to thereby apply an acting force to the lever. When the reel shaft stops rotating and the acting force disappears, the lever is brought into engagement with a projection of an idle gear shaft and is urged by the projection with subsequent rotation of the idle gear shaft, to thereby move a slide plate for changeover between forward and reverse modes of the tape recorder.
    Type: Grant
    Filed: August 14, 1995
    Date of Patent: April 9, 1996
    Assignee: Tanashin Denki Co., Ltd.
    Inventor: Kunio Kido
  • Patent number: 5493551
    Abstract: A disk playback apparatus comprises a loader holder, a loader movably disposed in the loader holder and having a disk slot, a pair of front levers symmetrically mounted on the front portion of the loader, and a pair of rear levers symmetrically mounted on the rear portion of the loader. When a compact disk is inserted into the loader through the disk slot so that a insert distance set in accordance with the diameter of the disk is exceeded, the front and rear levers cooperate with one another to push the loader into the loader holder while holding the inserted disk.
    Type: Grant
    Filed: July 20, 1994
    Date of Patent: February 20, 1996
    Assignee: Tanashin Denki Co., Ltd.
    Inventor: Kunio Kido
  • Patent number: 5459703
    Abstract: A disc player has a disc receiver for supporting a disc thereon and a disc holder for directly holding a plurality of discs one over another at different heights with vertical intervals left therebetween without the need for movable disc trays or the like. The receiver is arranged in a disc reproducing position whereas the holder is disposed movably up and down adjacent to the disc reproducing position. A disc guide is also provided for linearly guiding desired one of the discs between the disc reproducing position and the corresponding height in the holder with the desired disc maintained at an outer periphery thereof in contact with the guide.
    Type: Grant
    Filed: April 21, 1993
    Date of Patent: October 17, 1995
    Assignee: Tanashin Denki Co., Ltd.
    Inventor: Shinsaku Tanaka
  • Patent number: 5377061
    Abstract: A tape cassette loading apparatus wherein various components can operate smoothly at suitable timings with a simple construction. A pivotal lever is pivoted at an initial stage when a tape cassette is inserted into a cassette holder, and a controlling member is moved a little forwardly by the pivotal lever. The movement of the controlling member is detected by a position detector, and a loading motor is controlled in response to a detection signal from the position detector. The controlling member is driven to move forwardly and backwardly by power of the loading motor, and a changing-over operation between loading and unloading of a tape cassette and a mode position changing-over operation of a head mounting plate are performed by the forward and backward movement of the controlling member.
    Type: Grant
    Filed: June 24, 1992
    Date of Patent: December 27, 1994
    Assignee: Tanashin Denki Co., Ltd.
    Inventor: Toshio Yoshimura
  • Patent number: 5191575
    Abstract: A pick-up mechanism for a disk-type record medium reproduction apparatus is disclosed. This mechanism is suitable for use in a compact disk player and employs a plate spring to connect a nut mounted on a pick-up moving screw with the pick-up unit. Pressure contacts mounted on the outer surface of the nut and on the front end of the plate spring, steady the nut and eliminate gaps between the nut and the pick-up screw. By eliminating these gaps, information can be read from the disk with increased precision.
    Type: Grant
    Filed: December 5, 1991
    Date of Patent: March 2, 1993
    Assignee: Tanashin Denki Co., Ltd.
    Inventor: Kunio Kido
  • Patent number: 5175659
    Abstract: A mechanism for adjusting the position of the magnetic head of a VTR is characterized in that the horizontal position adjustment means comprises a horizontal position adjustment body rotatable relative to a chassis about an axis parallel to a supporting shaft and having the peripheral surface thereof parallel to the axis, the distance between the peripheral surface and the axis being gradually changed with the rotational direction of the horizontal position adjustment body; and a resilient means for resiliently pressing a portion of a up/down movable plate on the peripheral surface of the horizontal position adjustment body.
    Type: Grant
    Filed: July 24, 1990
    Date of Patent: December 29, 1992
    Assignee: Tanashin Denki Co., Ltd.
    Inventor: Takashi Yamanaka
  • Patent number: RE35155
    Abstract: A cassette holding device for a tape recorder wherein the shock resistance thereof can be assured sufficiently with a simple construction during transportation and during normal use of the tape recorder and protection of a cassette holder, capstan shafts and a tape cassette and reduction in cost and facility in use of the entire tape recorder can be attained. The device comprises an ejecting member which holds, when it is at advanced position, an arresting member to an advanced position in which a cassette holder can receive therein a tape cassette inserted into the tape recorder. When the arresting member is at a retracted position, the ejecting member is prevented from moving from a retracted position to the advanced position, but when the arresting member is moved .[.form.]. .Iadd.from .Iaddend.the retracted to the advanced position, the ejecting member is allowed to move from the retracted to the advanced position to eject a tape cassette from the tape recorder.
    Type: Grant
    Filed: January 25, 1995
    Date of Patent: February 13, 1996
    Assignee: Tanashin Denki Co., Ltd.
    Inventors: Shinsaku Tanaka, Tadao Arata, Takayuki Kitazawa
  • Patent number: RE36570
    Abstract: A tape recorder which includes an automatic reversing mechanism and wherein fast feeding or rewinding of a tape started manually is ended by releasing an operating member therefor from an actuated arrested position when the tape comes to its end is improved in operability with a simplified construction at a reduced cost. The tape recorder comprises a trigger member for mechanically detecting stopping of a reel receiving member to activate a tape feeding direction change-over mechansim, a pair of operating members manually operable for initiating a fast feeding or a rewinding operation, an arresting mechanism operable for arresting an actuated operating member to its actuated position, a transmission member operable in response to the actuated operating member for operating the trigger member, and a tape feeding direction change-over member mounted for engagement by the operating members.
    Type: Grant
    Filed: April 6, 1995
    Date of Patent: February 15, 2000
    Assignee: Tanashin Denki Co., Ltd.
    Inventors: Shinsaku Tanaka, Toshio Yoshimura