Abstract: An ear-hanging type speakerphone unit that allows users to listen to both sounds from the speaker and sounds from the outside environment, while suppressing leakage of the sounds emanating from the speaker to the outside environment, is provide for. A directional speaker is adjustably held with its speaker face being, for example, approximately 1 to 2 cm. away from the opening of an external auditory miatus, such that an open air space is formed between the speaker face and the opening of the miatus.

Abstract: An ear-hanging type speakerphone unit that allows users to listen to both sounds from the speaker and sounds from the outside environment, while suppressing leakage of the sounds emanating from the speaker to the outside environment, is provide for. A directional speaker is adjustably held with its speaker face being, for example, approximately 1 to 2 cm. away from the opening of an external auditory miatus, such that an open air space is formed between the speaker face and the opening of the miatus.

Abstract: A disk substrate molding die is provided in which the quantity of eccentricity of a stamper can be reduced to a small value. The molding die includes a member having mounted thereon a thin plate (19) carrying thereon a recorded transfer signal and an adjusting device consisting of a plurality of pairs of adjusting blocks, each formed of movable blocks (9a) and (9b) and blocks (10a) and (10b) having adjacent surfaces inclined in the moving direction of the movable blocks and common to one another.

Abstract: An apparatus for shaping a solid profile of a resin body by which time required for shaping of a resin body can be reduced and the quality of a product can be improved. A work is first dipped into solution of a photo-setting resin accommodated in a resin vessel to a depth equal to a thickness with which a resin layer is to be formed on an upper face of the work. A dam member in the resin vessel defines a liquid level of the resin solution. Then, an elongated nozzle member is laterally horizontally moved along the upper face of the work while supplying resin solution to the upper face of the work to apply the resin solution by a desired thickness to the upper face of the work. Resin liquid spilled over from the dam member upon such movement of the nozzle member is accommodated once into an auxiliary resin solution accommodating section and then supplied to the nozzle member.

Abstract: In a method for forming articles by injection molding, in which a melted plastic material is injected into a cavity formed between a movable die and a stationary die, the method including the steps of injecting the melted plastic material into the cavity under the condition of substantially no pressure, and pressing the movable die against the stationary die during or after injection so as to press-mold the article.

Abstract: A gear crank for a bicycle comprises a crank shaft, a pair of crank arms and at least one chain gear, the crank shaft carrying at its one axial end one of the crank arms, and a larger diameter portion onto which the chain gear is connected not-rotatably with respect to the crank shaft.

Abstract: Disclosed is a crank for a bicycle, having a chain wheel mounted thereto by an adapter, the adapter having at least one annular member formed at the foremost ends of legs extending radially outwardly of a boss of the adapter and connecting the legs with each other and chain wheel mounting means provided at at least one of the leg and adapter.

Abstract: A device for detecting coincident focusing points for use in the controlling of the focusing of an automatically focusable lens comprises a single array of light receiving transducers for converting the distribution of light intensity of an image applied thereon to a set of corresponding electrical signals. The image applied to the array is from a first optical path from an object through the lens and from a second optical path from the object. At least one shutter is provided for cutting off one of the optical paths to alternatively effect the application of light from the one optical path on to the array to produce a first set of signals and thereafter the light from either the other optical path or the sum of the two optical paths on to the array to produce a second set of signals.

Abstract: An automatic focusing device controls the setting of an actuating member to effect automatic focusing of a camera lens and is used in conjunction with a focus detecting unit which produces a focus detection signal corresponding to the object distance by photoelectrically comparing optical images transmitted by stationary and movable mirror systems. The automatic focusing device comprises pulse generating circuitry for generating pulses at a fixed repetition rate, a first counting circuit for counting pulses such that the number of pulses counted is a function of the angle of displacement of a movable mirror of the movable mirror system during a range scanning operation, and a second counting circuit connected to receive and memorize the pulse count counted by the first counting circuit when a focus detection signal is produced by the focus detecting unit and operative to count pulses such that the number of pulses counted is a function of the extent of movement of the actuating member.

Abstract: An independent unit including a multi-speed transmission mechanism and a driving device both assembled on a main fixed shaft of a bicycle in detachably mountable relation with respect to a hub shell for receiving the unit thereby making it very easy to repair any damaged portion of the mechanism and the device merely by exchanging the unit for a new one.Also disclosed is a similar unit comprising a brake shoe and a brake cone integrally formed in detachably mountable relation with respect to a hub shell adapted for a coaster brake type multi-speed transmission hub.

Abstract: A chain gear for a bicycle is formed from an approximately rectangular metallic band-shaped plate which has gear teeth formed along one edge and which is equal in length to the peripheral length of the chain gear. The band-shaped plate is wound into a ring-shape and end portions of the band-shaped plate are secured together to form the chain gear. The chain gear is secured to a chain gear adapter of a bicycle by a fixing means, the adapter rotating in accordance with a pedalling operation.

Abstract: Automatic focusing adjustor device provided with a focusing sensor signal corresponding to an object distance by photoelectrically comparing an optical image obtainable through a fixed mirror and another optical image obtainable through a movable mirror wherein when the focusing sensor signal is not obtained, two steps of distance adjustment may be made by an output signal from a brightness sensor circuit for use in sensing a brightness of the object.

Abstract: A gear crank for a bicycle comprises a crank shaft, a pair of crank arms and at least one chain gear, the crank shaft carrying at its one axial end one of the crank arms and a larger diameter portion onto which the chain gear is connected not-rotatably with respect to the crank shaft.

Abstract: A unit hub for a bicycle, comprising a hub combined with a freewheel. A cylindrical member is screwed to the hub body and is provided at one of its axially outside ends with an extension radially extending and having ball races carrying balls for supporting therewith a driving member and supporting the cylindrical member to the hub shaft respectively. The cylindrical member has a rotary control or tool receiving opening formed within the center thereof.

Abstract: Multi-speed sprockets are assembled with at least one larger diameter sprocket and at least one smaller diameter sprocket, in which the center of a space between certain adjacent teeth of the larger diameter sprocket is positioned on a tangent line drawn from the center of a space between certain adjacent teeth at the smaller diameter sprocket, and the distance between both centers is made substantially equal to an integer multiple of the pitch of a driving chain.

Abstract: A gear crank for a bicycle, which comprises a crank shaft, a pair of crank arms and a chain gear, is provided with concave and convex portions which are formed at both ends of the crank shaft and extending axially thereof so as to be fitted with concave and convex portions formed at a boss of each of the crank arms respectively, gear-fixing plates each of ring-like shape which have concave and convex portions fitted with the concave and convex portions at the crank shaft and are inserted onto the crank shaft together with the chain gear, and an engagement arranged between the chain gear and gear-fixing plates, so that the chain gear may be fixed to the crank shaft by use of a fixing member for fixing one of the crank arms to the crank shaft.

Abstract: A gear crank for a bicycle unidirectionally freely rotatably supporting at least one sprocket wheel with a crank body integrated with a crank shaft and a pair of crank arms at both ends of the shaft and having an inner ring which is passed over one of the arms to be mounted to one end of the shaft, is fixed with a cone, and supports, through a unidirectional rotational transmission, a driven member with the sprocket wheel in a unidirectionally freely rotating relation therewith.

Abstract: A bicycle chain wheel and crank of three pieces, namely a crank shaft and a pair of crank arms. The crank shaft freely rotatably supports the chain wheel through a cone, so that the crank is easy and inexpensive to manufacture. The crank arms can be of common shape because a chain wheel mounting boss does not have to be formed on the crank arm.

Abstract: A multi-speed transmission hub for a bicycle having a multiple speed-change mechanism and a braking mechanism which acts by back-pedalling, a ring gear for the speed-change mechanism which is provided with first transmitting pawls in mesh with first inner teeth formed at the inner surface of a hub shell and a clutch cone for the speed-change mechanism which is provided with second transmitting pawls in mesh with second inner teeth at the hub shell, and a rotor in mesh with the second inner teeth between the clutch cone and a gear frame of the speed-change mechanism.

Abstract: A multi-speed transmission hub for a bicycle having a multi-speed change mechanism and a braking mechanism for braking action by back-pedaling, in which first transmitting members of pawl shape serve to transmit the driving force from the speed-change mechanism to a hub shell and are urged by a pawl spring in the direction of being disengaged from first inner teeth of the hub shell, while, the transmitting members are adapted to be engaged with the first inner teeth by use of differential rotary speed between a gear frame and ring gear of the speed-change mechanism, when a driving member is normally rotated.