Ozen Corporation

Ozen Co., Ltd.

Eishi Koike

Katsumi Watanabe

Yutaka Shiseki

Masumi Kaneko

Seiji Ohata

Yasuhiko Yusa

Yasushi Ohtani

Kazumi Nozawa

A casing of a sound record playing apparatus includes of an upper body (1B) and a lower body (1A), and a vibration plate (16) is formed by reducing a thickness of a part of the upper body. An inner surface of the vibration plate is in abutment with a pickup (13) to amplify the vibrations of the pickup. Thus, a conical speaker which has been used conventionary can be eliminated, and the thickness of the recording disk reproducing apparatus is reduced. Expansion member (6) includes cam surfaces (71b, 72b) which force the grooved recording disk (2) away from the pickup (13) when the expansion member (6) is rotated conversely.

Compact sound record playing apparatus

A casing of a sound record playing apparatus includes an upper body (1B) and a lower body (1A), and a vibration plate (16) is formed by reducing a thickness of a part of the upper body. An inner surface of the vibration plate is in abutment with a pickup (13) to amplify the vibrations of the pickup. Thus, a conical speaker which has been used conventionary can be eliminated, and the thickness of the recording disk reproducing apparatus is reduced.

Sound recording playing apparatus with improved vibration plate

A turn table having a sound recording disk or record mounted thereon is normally urged upwardly by a spring disposed between a lower surface of the turn table and a chassis of a casing to apply a stylus force to a pickup. A weight member is rotatably and eccentrically supported on an inside mounting plate, and an operating claw having a slant surface formed on a lower surface is fixed to the weight member. When a shock is applied to the weight member externally, the weight member rotates by an inertia force in a plane perpendicular to a rotary shaft of the turn table. As a result, the operating claw on the weight member moves toward an upper end of the rotary shaft. The slant surface of the operating claw rides over the upper end of the rotary shaft to downwardly press the rotary shaft together with the turn table. Thus, the stylus force of the pickup is released. When the weight member returns to an original position, by a return spring, the operating claw retreats, and the turn table also returns to the upper position.

Sound record playing apparatus having shock responsive weight member to

A simplified acoustic disk record playback apparatus is disclosed having a battery-powered motor driving a turn table through a belt and pulley system. The turn table is centrally mounted on a rotating shaft. Overlying the turn table is a disk record which may have a plurality of grooves starting on its periphery. The turn table is spring biased towards a tone arm and associated record pickup stylus. The tone arm pivots horizontally, parallel to the plane of the disk record, but is held vertically by an overlying speaker cone, and is spring biased to a beginning playback position. The tone arm carries a center gear locking member on that side proximal to the turn table rotating shaft. A center gear is mounted on the turntable rotating shaft coplanar with the tone arm. Located on the turn table center, or rotating, shaft beneath the center gear is a two piece can assembly which lengthens when twisted. As the tone arm reaches the end of the disk record playback, the center gear locking member locks the center gear to stop the rotation of half the cam assembly, subjecting the cam to twisting and lengthening, thereby countering the spring bias of the turn table and allowing the tone arm to return to a playback position.

Simplified acoustic playback apparatus

A sound reproducing device is disclosed in which an index tracking portion formed on a record disc consists of a notch on the continuous flange of rotational periphery of a record disc unit. A center pin of the device is normally urged outside of a casing by a spring which also urges an index setting arm with a push button type index setting rotary knob supported on the tip end of said center pin. An index setting portion consists of a plurality of openings formed in the casing and arranged along the rotational plane of said record disc unit. The index setting arm has a resilient engaging hook on its lower tip end, the engaging hook directed toward the rotational cetner of the record disc unit. The engaging hook engages with the flange of the record disc unit where a specific index setting portion is selected by rotation of the push button type index setting knob. Pushing the index setting knob down makes the engaging hook pass through an index setting openings. The center pin keeps a speaker unit out of engagement with a pickup such that the pickup returns to the starting point of sound reproduction. The engaging hook returns through the index tracking portion when the index tracking portion comes on the engaging hook by rotational movement of the record disc unit, causing the center pin to retract so as to impart stylus pressure to the stylus by returning the speaker unit by a stylus pressure spring.

Sound reproducing device for playing a record disc having a plurality of

A sound reproducing device is disclosed in which an index tracking portion formed on a record disc consists of a notch on the continous flange of rotational periphery of a record disc unit. A center pin of the device is normally urged outside of a casing by a spring which also urges an index setting arm with a push button type index setting rotary knob supported on the tip end of said center pin. An index setting portion consists of a plurality of openings formed in the casing and arranged along the rotational plane of said record disc unit. The index setting arm has a resilient engaging hook on its lower tip end, the engaging hook directed toward the rotational center of the record disc unit. The engaging hook engages with the flange of the record disc unit where a specific index setting portion is selected by rotation of the push button type index setting knob. Pushing the index setting knob down makes the engaging hook pass through an index setting openings. The center pin keeps a speaker unit out of engagement with a pickup such that the pickup returns to the starting point of sound reproduction. The engaging hook returns through the index tracking portion when the index tracking portion comes on the engaging hook by rotational movement of the record disc unit, causing the center pin to retract so as to impart stylus pressure to the stylus by returning the speaker unit by a stylus pressure spring.

As an effective means for carrying a plurality of record discs for selective reproduction, comprising an index carrier which is formed mainly as an index proper of flexible or rigid lengthy plate or as a series of plates connected with hinges, the periphery of the index proper having notches acting as indexing points for fixing and indexing the desired record disc and the side periphery or peripheries acting to restrain and guide the index carrier in a specific and regular direction. A simplified sound reproducing device for using aforesaid index carrier is constructed, in addition to ordinary means such as a tone arm, a turn table, a record disc, a sound transmitting member, starting and terminating means and the like, to have an index carrier magazine composed of a pair of magazines each disposed at each transverse side of the casing and having several means such as a spool, a knob or the like, for feeding the index carrier to the position where it can engage the reproducing stylus of the tone arm.

Index carrier for indexing and reproducing a plurality of record discs

A simplified sound reproducing device having a means for preventing collision between a record disc and a sound reproduction stylus is provided. According to the device, during the time of transportation a start lever is set at a position where it has been turned, whereby the center pin is moved downwardly by an inclined face formed on the start lever so that the record disc can be normally held at a position where it is placed away form the pickup of the sound reproducing device. When it is required to use the reproducing device for the purpose of playing, the start lever is turned back to the position where it had been before the first turning for the transportation, thereby subsequent pushing down of the start lever will make the inclined face move the center pin downward so as to move the record disc away from the pickup, then, the pickup is allowed to return to its starting point of sound reproduction and energizes a motor for starting the sound reproduction again.

Simplified sound reproducing device having a means for preventing

A plurality of record discs are carried on a single rotatable indexing table detachably mounted on the casing of the device, any one of which record discs can be brought into engagement with a turn table carrying a pickup. On the casing, there are provided a starting rod and a member for terminating reproduction upon arrival of the pickup of the tone arm at the end point of sound reproduction.

Simplified sound reproducing device capable of reproducing a plurality

An index portion of a record disk unit is formed by cutting out a portion of a flange which is formed continuously along a peripheral edge of the record disk unit. When one of selection rods is pushed against a spring which urges the selection rod in a retreating direction, to rotate a stylus presssure release actuating wheel, an engaging member, formed on the selection rod, is elastically deformed by the edge of the flange and rides over the flange into engagement therewith. When the index portion of the record disk unit comes around to a position coincident with the engaging member, the engaging member is allowed to pass through the cut-out portion of the index portion, to thereby return the selection member to its original position by a spring force to be applied a stylus pressure on a pickup.

Phonograph for a record disk having a plurality of sound grooves

A speed of movement of a moving object, e.g., a tennis ball, which moves a predetermined distance is determined by measuring a time interval between a first detection of a vibration wave produced in the ball when it is hit by the tennis player's racket and a second detection of anouther vibration wave produced when the ball collides with the court surface. A vibration sensor for performing the first detection, and a microcomputer for computing the movement speed of the ball, and a liquid crystal display for displaying the movement speed are accommodated in a case which is mounted on the tennis racket. A sound collecting micrphone which performs the second detection is attached to the lower edge of the net near a ball landing position on the court, and the detection signal is transmitted over a radiowave to a receiver accommodated in the case.

Device for measuring the speed of a moving object

A pull string mechanism for a pull string type sound reproducing device utilizes a string supporting member which is resiliently movable only in an upward and downward direction. The string supporting member is disposed adjacent a pull out hole, such that the path of the pull string from the pull out hole, via the string supporting means and a bobbin for taking up and paying off the pull-string can follow a crank shaped path with the angle of turning being not larger than a right angle.

Pull string mechanism in a pull string type sound reproducing device

A pair of photoconductive elements are provided on an inner surface of a light transmitting outer skin of a doll. When the amount of light impinging on either one of the pair of photoconductive elements differs from the other as a result of interruption of the light impinging on the one of the photoconductive elements, a sound generating device is actuated to generate a sound.

Sound generating toy

A voice generating device has n input signal lines (wherein n denotes an integer of 2 or more), each of which receives an input signal, an n output signal lines, each of which generates an output signal corresponding to each of the input signals, and a preferential selection circuit which selects any one of said input signals according to a predetermined priority ranking commencing from the first to nth in order. The voice generating device successively scans each of the output signal lines one after another and generates a voice message corresponding to only the highest priority output signal.

Voice generating device

A microphone senses a sound generated by the user clapping his hands and converts the sound into an electric signal which is applied to a flip-flop circuit to set the latter. The output of the flip-flop circuit is supplied through a time constant circuit to a drive and control circuit for operating a sound generating device having a reproducing stylus and a recorded disk. A reset signal producing circuit is provided to produce a reset signal for the flip-flop circuit when a second sound is sensed by the microphone within a predetermined time period set by the time constant circuit, thereby stopping the operation of the sound generating device.

Growing community of inventors

Sagamihara, Japan

Eishi Koike