Abstract: A quartz glass crucible 1 having a cylindrical side wall portion 10a, a bottom portion 10b, and a corner portion 10c includes a transparent layer 11 as an innermost layer made of quartz glass, a semi-molten layer 13 as an outermost layer made of raw material silica powder solidified in a semi-molten state, and a bubble layer 12 made of quartz glass interposed therebetween. An infrared transmissivity of the corner portion 10c in a state where the semi-molten layer 13 is removed is 25 to 51%, the infrared transmissivity of the corner portion 10c in the state where the semi-molten layer 13 is removed is lower than an infrared transmissivity of the side wall portion 10a, and the infrared transmissivity of the side wall portion 10a in the state where the semi-molten layer 13 is removed is lower than an infrared transmissivity of the bottom portion 10b.

Abstract: An object of the present invention is to provide absorbent resin particles for a water-stopping tape which are superior in absorption rate even when their average particle size is smaller or when their particle size distribution is wider. The present invention relates to absorbent resin particles for a water-stopping tape comprising a crosslinked polymer (A1) comprising a water-soluble vinyl monomer (a1) and/or a hydrolyzable vinyl monomer (a2) and a crosslinking agent (b) as essential constitutional units, wherein a hydrophobic substance (C) is present inside the absorbent resin particles in an amount of from 0.01 to 10.0% by weight relative to the weight of (A1) and (C) is present on the surface of the absorbent resin particles in an amount of from 0.001 to 1.0% by weight relative to the weight of (A1).

Abstract: An imager apparatus is provided. The imager apparatus includes: a housing that stores a lens device with an imaging lens exposed to the front surface facing a subject; and a lens cover attached to the housing, being movable between a first position covering the imaging lens and a second position opening the same. The lens device includes a lens barrel supporting a lens system including the imaging lens in a fixed and/or movable manner, whose forefront part protrudes forward compared with the imaging lens. A stepped portion corresponding to a level difference between the forefront part of the lens barrel and the imaging lens is provided at part of the front surface of the housing, where the lens device is stored. A peaked portion protruding into the stepped portion to eliminate a gap between the lens cover and the housing is provided on the lens cover.

Abstract: An imager apparatus is provided, including a housing that stores a lens device with an imaging lens exposed to the front surface facing a subject; a lens cover movable between a first position covering the imaging lens and a second position opening the same; and a cover moving mechanism linearly moving the lens cover between the first and second positions. The cover moving mechanism includes a plurality of brackets provided on the lens cover; a plurality of opening portions provided in the front surface of the housing, corresponding to the plurality of brackets, through which the tips of the brackets penetrate; an arm member fixed to those brackets on the inner side of the housing; a guide member guiding the arm member in the moving direction of the lens cover; and a slide joining mechanism joining the arm member to the guide member in a slidable manner.

Abstract: A connector comprising a header connector 20 and a socket connector 25. The connector 25 includes a fixed section 272 that is continuously formed at the tip of one end 2711 of a contact section 271 so that a part 2721 of the section 272 is arranged in parallel with the one end. A housing 26 of the connector 25 sandwiches and retains both sides of the part 2721 between a pair of facing retention grooves, and also sandwiches and receives both sides of the one end 2711 between a pair of facing guiding grooves so that the one end 2711 can move only along facing surfaces including the above each groove.

Abstract: This connector assembly comprises a header (1) and a socket (2). The header (1) has a header contact member (4) with a first contact piece (41) and a second contact piece (42), and the socket (2) has a socket contact member (6) with a first contact piece (64) and a second contact piece (66). The first contact piece (64) of the socket contact member (6) has a first protrusion (64a) and the first contact piece (41) of the header contact member (4) has a second protrusion (41a), and the first protrusion (64a) and the second protrusion (41a) constitute a lock mechanism when the header is inserted into the socket. The second contact piece (42) of the header contact member (4) has a concave portion (42a) in a surface for making contact with the second contact piece (66). When the second contact pieces (42) and (66) make contact with each other, a gap is formed between the second contact piece (66) and an inner surface of the concave portion (42a).

Abstract: An ultrasonic motor includes an annular stator, a rotor, a rectangular parallelepiped multilayer piezoelectric transducer, a support shaft, three transducers with drivers, a holder for holding the transducers with an elastic plate therebetween, and a leaf spring for urging the holder. The holder having the transducers is inserted into transducer attaching holes arranged at positions where the circumference of the stator is divided into three parts in a state wherein the holder is urged by the leaf spring from the back of the holder. The leaf spring abuts and urges the drivers of the transducer against a hardwearing ring fixed to the outer circumference of the rotor on the side of the internal circumference of the stator. When the transducer is driven so as to excite an elliptical movement produced in the drivers by combining a bending standing-wave vibration with a longitudinal vibration, the rotor is rotated relative to the stator.

Abstract: An ultrasonic motor includes rotors and an annular stator, which are integrated in the rotational direction, a rectangular parallelepiped multilayer piezoelectric transducer, a support shaft, and a transducer with drivers. The support shaft is attached to the outer circumference of the stator and arranged along the radial direction, and the drivers are abutted by a spring urging force to the rotors arranged on both sides of the stator in the axial direction, and are clamped with the rotors. When the transducer is driven so as to excite an elliptical movement produced by combining a bending standing-wave vibration with a longitudinal vibration with the drivers, the rotors are rotated relatively to the stator. Since the drivers are clamped with the integrated rotors, the ultrasonic motor can be driven with small frictional loss and improved conversion efficiency.

Abstract: This connector assembly comprises a header 1 and a socket 2. The header 1 has a header contact member 4 with a first contact piece 41 and a second contact piece 42, and the socket 2 has a socket contact member 6 with a first contact piece 64 and a second contact piece 66. The first contact piece 64 of the socket contact member 6 has a first protrusion 64a and the first contact piece 41 of the header contact member 4 has a second protrusion 41a, and the first protrusion 64a and the second protrusion 41a constitute a lock mechanism when the header is inserted into the socket. The second contact piece 42 of the header contact member 4 has a concave portion 42a in a surface for making contact with the second contact piece 66. When the second contact pieces 42 and 66 make contact with each other, a gap is formed between the second contact piece 66 and an inner surface of the concave portion 42a.

Abstract: A connector comprising a header connector 20 and a socket connector 25. The connector 25 includes a fixed section 272 that is continuously formed at the tip of one end 2711 of a contact section 271 so that a part 2721 of the section 272 is arranged in parallel with the one end. A housing 26 of the connector 25 sandwiches and retains both sides of the part 2721 between a pair of facing retention grooves, and also sandwiches and receives both sides of the one end 2711 between a pair of facing guiding grooves so that the one end 2711 can move only along facing surfaces including the above each groove.

Abstract: An imager apparatus is provided, including a housing that stores a lens device with an imaging lens exposed to the front surface facing a subject; a lens cover movable between a first position covering the imaging lens and a second position opening the same; and a cover moving mechanism linearly moving the lens cover between the first and second positions. The cover moving mechanism includes a plurality of brackets provided on the lens cover; a plurality of opening portions provided in the front surface of the housing, corresponding to the plurality of brackets, through which the tips of the brackets penetrate; an arm member fixed to those brackets on the inner side of the housing; a guide member guiding the arm member in the moving direction of the lens cover; and a slide joining mechanism joining the arm member to the guide member in a slidable manner.

Abstract: An imager apparatus is provided. The imager apparatus includes: a housing that stores a lens device with an imaging lens exposed to the front surface facing a subject; and a lens cover attached to the housing, being movable between a first position covering the imaging lens and a second position opening the same. The lens device includes a lens barrel supporting a lens system including the imaging lens in a fixed and/or movable manner, whose forefront part protrudes forward compared with the imaging lens. A stepped portion corresponding to a level difference between the forefront part of the lens barrel and the imaging lens is provided at part of the front surface of the housing, where the lens device is stored. A peaked portion protruding into the stepped portion to eliminate a gap between the lens cover and the housing is provided on the lens cover.

Abstract: An ultrasonic motor includes rotors and an annular stator, which are integrated in the rotational direction, a rectangular parallelepiped multilayer piezoelectric transducer, a support shaft, and a transducer with drivers. The support shaft is attached to the outer circumference of the stator and arranged along the radial direction, and the drivers are abutted by a spring urging force to the rotors arranged on both sides of the stator in the axial direction, and are clamped with the rotors. When the transducer is driven so as to excite an elliptical movement produced by combining a bending standing-wave vibration with a longitudinal vibration with the drivers, the rotors are rotated relatively to the stator. Since the drivers are clamped with the integrated rotors, the ultrasonic motor can be driven with small frictional loss and improved conversion efficiency.

Abstract: An ultrasonic motor includes an annular stator, a rotor, a rectangular parallelepiped multilayer piezoelectric transducer, a support shaft, three transducers with drivers, a holder for holding the transducers with an elastic plate therebetween, and an urging leaf spring for urging the holder. The holder having the transducers is inserted into transducer attaching holes arranged at positions where the circumference of the stator is divided into three parts in a state of the holder urged by the urging leaf spring from the back of the holder. The drivers of the transducer are abutted by an urging force of the urging leaf spring to a hardwearing ring fixed to the outer circumference of the rotor on the side of the internal circumference of the stator. When the transducer is driven so as to excite an elliptical movement produced in the drivers by combining a bending standing-wave vibration with a longitudinal vibration, the rotors are rotated relatively to the stator.