Abstract: A false twisting yarn composed of monofilaments containing a polyester component of which main component is polytrimethylene terephthalate, wherein the false twisting yarn is a false twisting yarn which satisfies all of the requirements of (1) a shrinkage ratio by wet heat treatment at 98° C. for 20 minutes is 5% or less, (2) a ratio (TS/WS) of elastic stretch ratio after wet heat treatment at 90° C. for 20 minutes (WS) and elastic stretch ratio after dry heat treatment at 90° C. for 15 minutes (TS) is, 0<TS/WS?1, and (3) a tensile strength is 2.0 cN/dtex or more. By using the false twisting yarn, it is possible to produce a pile cloth having a soft touch and a low shrinkage.

Abstract: A false twisting yarn composed of monofilaments containing a polyester component of which main component is polytrimethylene terephthalate, wherein the false twisting yarn is a false twisting yarn which satisfies all of the requirements of (1) a shrinkage ratio by wet heat treatment at 98° C. for 20 minutes is 5% or less, (2) a ratio (TS/WS) of elastic stretch ratio after wet heat treatment at 90° C. for 20 minutes (WS) and elastic stretch ratio after dry heat treatment at 90° C. for 15 minutes (TS) is, 0<TS/WS?1, and (3) a tensile strength is 2.0 cN/dtex or more. By using the false twisting yarn, it is possible to produce a pile cloth having a soft touch and a low shrinkage.

Abstract: A production system which can provide an operating environment consisting of a clean atmosphere when an environment which can prevent dust from entering is required in an operation such as processing, assembling or the like of a workpiece.

Abstract: An acoustic device having a sound volume control is provided. The device includes a sound generating body and a resonator having a mount member to which the sound generating body is mounted. According to the invention, a sound control member is provided to control the transmission of sound from the sound generating body to the resonator to control the sound volume. In one aspect, the sound control member is capable of adjusting a contact pressure between the sound generating body and the mount member to vary the sound volume more precisely.

Abstract: A winding device is disclosed comprising a winding mechanism for winding a thin medium, such as paper, film and cloth and the like, output by a printer on a winding core. A looseness-detecting sensor is provided for detecting looseness of the medium and for actuating the winding mechanism upon detection. When a sheet tray is attached to the printer, the looseness-detecting sensor is capable of receding from the moving area of the medium.

Abstract: A card issuing device and method capable of handling a plurality of types of cards with a single card extracting and moving mechanism having two motors. The device has a plurality of card stackers each for storing a plurality of cards, and a card extracting and moving mechanism movably provided for extracting cards one at a time from any one of the card stackers. A card reader for recording or reading information on or from the card, an engraving/embossing device for marking characters on the card, and a topper mechanism for applying color to the marked characters are provided. A waste card receiver is also provided and is driven by the same motors that drive the card extracting and moving mechanisms. Correction of card inclination effect can be performed so that the marked characters for a row parallel to a desired edge of the card even when the card is held at an angle with respect to the moving direction during the marking process.

Abstract: A card issuing device and method capable of handling a plurality of types of cards with a single card extracting and moving mechanism having two motors. The device has a plurality of card stackers each for storing a plurality of cards, and a card extracting and moving mechanism movably provided for extracting cards one at a time from any one of the card stackers. A card reader for recording or reading information on or from the card, an engraving/embossing device for marking characters on the card, and a topper mechanism for applying color to the marked characters are provided. A waste card receiver is also provided and is driven by the same motors that drive the card extracting and moving mechanisms. Correction of card inclination effect can be performed so that the marked characters for a row parallel to a desired edge of the card even when the card is held at an angle with respect to the moving direction during the marking process.

Abstract: A winding core holding mechanism is described for holding at least one end portion of a winding core on which a thin medium such as paper, film, or cloth is wound. The mechanism comprises a base fixed in the axial direction of the winding core. A larger diameter reference portion is included, which is capable of axially moving in and out of the base and abuts an end face of the winding core. The mechanism also comprises a tapered larger diameter centering portion which is capable of axially moving in and out of the larger diameter reference portion and fits into the winding core of larger diameter. Also included is a smaller diameter reference portion, which is capable of axially moving in and out of the base and abuts an end face of the winding core of smaller diameter. A tapered smaller diameter centering portion is further included, which is capable of axially moving in and out of the smaller diameter reference portion and fits into the winding core of smaller diameter.

Abstract: A winding core holding mechanism is described for holding at least one end portion of a winding core on which a thin medium such as paper, film, or cloth is wound. The mechanism comprises a base fixed in the axial direction of the winding core. A larger diameter reference portion is included, which is capable of axially moving in and out of the base and abuts an end face of the winding core. The mechanism also comprises a tapered larger diameter centering portion which is capable of axially moving in and out of the larger diameter reference portion and fits into the winding core of larger diameter. Also included is a smaller diameter reference portion, which is capable of axially moving in and out of the base and abuts an end face of the winding core of smaller diameter. A tapered smaller diameter centering portion is further included, which is capable of axially moving in and out of the smaller diameter reference portion and fits into the winding core of smaller diameter.

Abstract: A winding device is disclosed comprising a winding mechanism for winding a thin medium, such as paper, film and cloth and the like, output by a printer on a winding core. A looseness-detecting sensor is provided for detecting looseness of the medium and for actuating the winding mechanism upon detection. When a sheet tray is attached to the printer, the looseness-detecting sensor is capable of receding from the moving area of the medium.

Abstract: Odd- and even-numbered conductors of recording electrodes, for example, first or second recording electrodes, are divided in the direction in which the conductor at the time of winding are stacked up to form different layers so as to increase the distance between the conductors of the adjoining recording electrodes and reduce the floating electrostatic capacitance.

Abstract: A multi-needle recording head has retaining members within an electrode support block, each retaining member serving to retain a recording electrode wire. The retaining members can not only lessen a stress generated by the hardening and contracting of a resin, but also prevent generation of defects such as cracks in the vicinity of recording electrodes on a head surface. Further, such multi-needle recording head is obtained by retaining the recording electrode wires by the retaining members, each retaining member having a pressure sensitive adhesive agent or an adhesive arranged at least on a surface thereof contacting the recording electrode wire, with the recording electrode wires wound around the winding jig before the recording electrode wires are cast into the electrode support block made of the electrically insulating resin.

Abstract: Method and apparatus for high speed false twist texturing of yarns, which makes it possible to perform false twist texturing smoothly at a yarn speed of 1,000 m/min or higher. The number of false-twists inserted per meter of yarn is determined by Equation 1, while the yarn is false-twisted at a yarn speed satisfying Equation 2 and at a short yarn path length satisfying Equation 3: ##EQU1## wherein T is the number of false-twists inserted per meter of yarn, V is the yarn speed of false twist texturing (m/sec), L is the yarn path length from teed rollers to a false twister (m), and A is a cross sectional area of the yarn (m.sup.2), which is obtained by dividing the denier of the yarn by the density of the yarn. The false-twist texturing apparatus includes feed rollers feeding yarn to a false-twisting zone, a heating device bringing the yarn into direct contact with steam, a cooling device bringing the yarn into direct contact with water, a false twister and delivery rollers, in this order.

Abstract: There are disclosed a multiple-needle electrode head and its manufacturing method. The head comprises: a first head half body including at least two electrode substrates, each having needle-shaped electrodes formed in a row on its one surface and insulated from each other, the at least two electrode substrates being joined in the row direction and adhered onto a first side plate; and a second head half body including at least two electrode substrates, each having needle-shaped electrodes formed in a row on one surface and insulated from each other, the at least two electrode substrates being joined in the row direction and adhered to a second side plate. The first and second head half bodies are coupled so that the electrode substrates of each of the head half bodies are located inside and the electrodes of the first head half body and the electrodes of the second head half body are insulated from each other.

Abstract: The present invention is directed to an electrostatic recording head comprising an electrode substrate made of an insulating material, a plurality of parallel recording electrodes made of a conductive material and formed on at least one of the side surfaces of the electrode substrate so that tip portions of the recording electrodes are in alignment, a rigid outer member made of an insulating material for covering both side surfaces of the electrode substrate to fix the electrode substrate, and an insulating resin layer filled into a space formed at least at a part of the tip portions of the recording electrodes between each of the side surfaces of the electrode substrate and the outer member, the insulating resin layer also filling gaps between every adjacent two of the recording electrodes, whereby substantially preventing electromigration.

Abstract: A tapered optical waveguide is disclosed, which comprises a substrate having a plane surface for forming a waveguide layer, whose refractive index is higher than that of the substrate, which substrate is transparent with respect to guided light, and a waveguide layer formed on the plane surface of the substrate, in which light taken out on the substrate side is focused so as to form a small spot at a position distant from the interface between the waveguide layer and the substrate.