Abstract: To provide an optical fiber cord with an optical connector of higher flexibility resistance, and the method for manufacturing the same are disclosed. An optical fiber cord with an optical connector, wherein said fiber cord, wherein said the optical connector comprising a stop ring having a through hole formed therein, though which said optical fiber is disposed; a crimping ring being disposed around said optical fiber to crimp said stop ring and said optical fiber cord; a ferrule being disposed at the tip end part of said optical fiber in said optical fiber cord; a spring being disposed around said optical fiber and between said ferrule and said stop ring; a plug frame being engaged with said stop ring; a grip being engaged with said plug frame; wherein said through hole of said stop ring having a stepwisely narrowing part in which a hole diameter is gradually reduced from said crimping part side to said ferrule side.

Abstract: An optical connector plug incorporates a coil spring to bias a shutter holding member to the front side of an axial direction with respect to a plug frame and minimizes the entire length. The plug has a housing that includes a grip member and a shutter holding member that move relatively in the axial direction and the plug frame has an extension state in which the grip member moves to the rear side of the axial direction of the shutter holding member and a reduction state in which the grip member moves to the front side of the axial direction of the shutter holding member. A biasing member that biases the shutter holding member to the front side of the axial direction with respect to the plug frame and a biasing member receiving member that is connected to the plug frame are provided.

Abstract: Disclosed is an optical connector plug that can be securely attached to or detached from a shutter member without damage, regardless of a state of a coupling claw of an optical connector adaptor or existence or non-existence of the coupling claw. In the optical connector plug, a front end of the shutter member can move between a shield position to shield a front end face of a ferrule in an extension state and a non-shield position to expose the front end face of the ferrule to the front side of a housing in a reduction state, when a plug frame and a shutter holding member move between the extension state and the reduction state. In the optical connector plug, in a course in which the shutter holding member is engaged with holding portions protruding in an axial direction of the optical connector adaptor and a grip member moves from the extension state to the reduction state, the front end of the shutter member is spaced to face front ends of the holding portions in the axial direction.

Abstract: To provide an optical fiber cord with an optical connector of higher flexibility resistance, and the method for manufacturing the same are disclosed. An optical fiber cord with an optical connector, wherein said fiber cord, wherein said the optical connector comprising a stop ring having a through hole formed therein, though which said optical fiber is disposed; a crimping ring being disposed around said optical fiber to crimp said stop ring and said optical fiber cord; a ferrule being disposed at the tip end part of said optical fiber in said optical fiber cord; a spring being disposed around said optical fiber and between said ferrule and said stop ring; a plug frame being engaged with said stop ring; a grip being engaged with said plug frame; wherein said through hole of said stop ring having a stepwisely narrowing part in which a hole diameter is gradually reduced from said crimping part side to said ferrule side.

Abstract: Disclosed are an optical connector plug and an optical connector, wherein the grip member includes an inner barrel and an outer barrel, which are freely slid with respect to each other, the grip member having a reduction state where the inner barrel is accommodated in the outer barrel and an extension state where the inner barrel projects forwardly, and the plug frame being engaged and supported such that the plug frame is movable by a predetermined amount with respect to the outer barrel, and, at a leading end inside the inner barrel are provided a shield plate supported at a free slant with respect to the inner barrel via a base end of the shield plate, disposed at a shield position at which a leading end of the ferrule is shielded in the extension state, and disposed at a non-shield position at which accommodation of the plug frame in the inner barrel is allowed, an action plate supported at a free slant inside the shield plate via a base end of the action plate, and inclined along with the shield plate, w

Abstract: Provided are an optical connector plug and an optical connector, including: a shielding plate which is held in a plug frame holding hole of a plug housing in a manner that allows the shielding plate to tilt, the distal end of the shielding plate moving between a shielding position and an unshielding position; an operating plate which is held in a tiltable manner in the plug frame holding hole and adapted to tilt along with the shielding plate, the plug frame being capable of retracting, upon movement of the shielding plate to the shielding position, to a housing position at which no interference occurs with the shielding plate and the operating plate; and a biasing and holding member for biasing and positioning the shielding plate and the operating plate in a manner that brings the shielding plate to the shielding position as the plug frame moves to the housing position.

Abstract: Disclosed are an optical connector plug and an optical connector, wherein the grip member includes an inner barrel and an outer barrel, which are freely slid with respect to each other, the grip member having a reduction state where the inner barrel is accommodated in the outer barrel and an extension state where the inner barrel projects forwardly, and the plug frame being engaged and supported such that the plug frame is movable by a predetermined amount with respect to the outer barrel, and, at a leading end inside the inner barrel are provided a shield plate supported at a free slant with respect to the inner barrel via a base end of the shield plate, disposed at a shield position at which a leading end of the ferrule is shielded in the extension state, and disposed at a non-shield position at which accommodation of the plug frame in the inner barrel is allowed, an action plate supported at a free slant inside the shield plate via a base end of the action plate, and inclined along with the shield plate, w

Abstract: Provided are an optical connector plug and an optical connector, including: a shielding plate which is held in a plug frame holding hole of a plug housing in a manner that allows the shielding plate to tilt, the distal end of the shielding plate moving between a shielding position and an unshielding position; an operating plate which is held in a tiltable manner in the plug frame holding hole and adapted to tilt along with the shielding plate, the plug frame being capable of retracting, upon movement of the shielding plate to the shielding position, to a housing position at which no interference occurs with the shielding plate and the operating plate; and a biasing and holding member for biasing and positioning the shielding plate and the operating plate in a manner that brings the shielding plate to the shielding position as the plug frame moves to the housing position.

Abstract: A disk drive (30) for use with a magnetooptical disk cartridge (10) having a magnetooptical data storage disk (12) rotatably enclosed in a generally flat, boxlike housing (14), a sliding shutter (16) mounted astraddle one edge thereof for opening and closing a pair of disk access windows (22, 24) in opposite sides of the housing. The disk drive has a cartridge cardle (38, 138) for receiving the disk cartridge as the latter is inserted in an entrance slot (36) in the disk drive casing (32, 132). Pivotally mounted to the cartridge cradle a shutter opening lever (46) opens the cartridge shutter (16) well before the disk cartridge (10) is fully inserted through the entrance slot. The electromagnet assembly (68, 168) of the magnetooptical disk drive, by which a magnetic field is generated for biasing the disk during data transfer with an optical data transducer, is positioned sufficiently close to the loaded disk cartridge (10) to appeciably reduce the height or thickness dimension of the disk drive.

Abstract: A signal-pickup cartridge is adapted to be loaded into a holder of a signal-pickup device proper of a rotating recording medium reproducing apparatus. The signal-pickup cartridge comprises a cantilever having at its distal tip a reproducing element for picking up and reproducing a signal from a rotating recording medium rotating in the apparatus, a cartridge case supporting therewithin the cantilever and having a ceiling plate and vertical walls on opposite sides thereof, a box-shaped cover joinable to the cartridge case to cover the lower face thereof in a manner to protect the cantilever and the reproducing element, and a mechanism for joining the cover and the case in latched state. This mechanism is triggered to unlatch the cover from the case when the cartridge is inserted into the holder.

Abstract: A rotary recording medium reproducing apparatus for reproduces a rotary recording medium accommodated within a case. The case comprises a jacket provided with a space for accommodating the rotary recording medium and an opening for allowing the rotary recording medium to go in and out of the jacket, and a lid member inserted through the opening of the jacket for closing the opening of the jacket. The rotary recording medium reproducing apparatus has a rotary recording medium clamping mechanism provided at an innermost part of the reproducing apparatus, for clamping an outer peripheral groove guard of the rotary recording medium when the case is inserted into the reproducing apparatus and then the jacket is pulled out from the reproducing apparatus.

Abstract: A series of film-containing cassettes are placed in projecting positions and thereafter in rewinding positions. First and second take-up reels are arranged to be axially movable between first and second positions. An elongate film guide member is movable between an active position in which the guide defines a straight threading path between the cassette occupying the projecting position and the take-up reel occupying the first position and a normally inactive position in which the guide is clear of the threading path. In the film threading mode, the leading end of film is driven through the straight threading path and taken up by the take-up reel. A film handling mechanism is provided between the opposite ends of the threading path. Upon completion of film threading, the movable elongate guide is restored to the inactive position and the film handling mechanism is brought into operation to engage the film with an aperture plate.