摘要:
A projection exposure apparatus for positioning, for each shot provided on a wafer, a pattern formed on a mask with respect to the wafer and also for exposing the pattern on the wafer includes a wafer stage carrying the wafer and movable stepwise for each shot, a mask stage carrying the mask and movable, a stage control unit for making relative positioning between the wafer and the pattern of the mask and maintaining the relative positioning so that the stage control unit moves the mask stage to make the relative positioning before the wafer stage stops for each shot, and an exposure control unit for performing exposure while the relative positioning is maintained.
摘要:
A cymbal holder includes a holder body having an insertion hole, first and second engagement members, and first and second compression coil springs. The first and second engagement members are urged by the first and second compression coil springs such that first and second nut portions approach each other to be engaged with a bolt. When first and second button portions are pressed against the urging force of the first and second compression coil springs, the first and second nut portions are disengaged from the bolt.
摘要:
A pedal device including a base and a pedal plate supported by the base in an inclinable manner and depressed by an operator. An urging mechanism urges the pedal plate in a direction opposite to the depression direction of the pedal plate. A force release mechanism releases the pedal plate from an urging force applied by the urging mechanism. A holding mechanism switches the pedal plate between a state in which the pedal plate is held in an operable manner by applying a resistance force resisting operation of the pedal plate and a state in which the resistance force to operation of the pedal plate is released and the urging force of the urging mechanism is effective.
摘要:
A strainer includes a strainer body, a slider to which a cam follower is fixed, a holder to which snare wires are fixed, an operating lever, and a cam that is pivoted through operation of the operating lever. The slider is slid relative to the strainer body by pivoting the cam through operation of the operating lever so that the cam follower moves along the cam surface. The movement distance of the slider linearly changes with respect to an operation angle of the operating lever.
摘要:
A snare drum includes a strainer system which switches the position of a snare wire between an OFF position spaced from a lower drumhead and an ON position in contact with the lower drumhead. The strainer system includes a frame to which the snare wire is attached, and a pair of link mechanisms which are joined to the respective end portions of the frame and attach the respective end portions of the frame to a shell of the snare drum. After switching the position of the snare wire to the ON position, the position of the snare wire with respect to the lower drumhead is adjusted by operating an adjust screw of the second link mechanism.
摘要:
A marching carrier includes rods for supporting a musical instrument, a carrier main body to be in contact with a front face of a trunk of a player, a frame put on both shoulders of the player, a pair of shoulder cushions pivotably attached to the frame, and a back cushion pivotably attached to the frame. In the marching carrier, angles of the shoulder cushions and the back cushion to the frame can be adjusted separately.
摘要:
A tom holder includes a fastening piece fixed to a bass drum. A support pipe extends upward from the fastening piece. A support bar extends forward from the support pipe. A mount is supported on the support bar in a manner movable relative to the axis of the support bar. The tom holder further includes a longitudinal position adjustment mechanism for horizontally adjusting the position of side drums attached to the mount. The longitudinal position adjustment mechanism changes the position of the holder with respect to the support bar to adjust the horizontal position of the side drums.
摘要:
An angle adjustor includes a fixed member, a movable member, a plurality of friction plates arranged between the fixed and movable members, and a bolt connecting the fixed and movable members. The fixed member and the movable member each have a notch for receiving a pressing member that presses the friction plates against the surface of the notch. Each pressing member is fixed to the fixed member or movable member in a direction substantially parallel to the axis of the bolt. The friction plates are fixed between the notch and the pressing member.
摘要:
A drum coupling system is configured as a coupling system for coupling various marching drums such as a snare drum, a tenor drum, and a bass drum to marching carriers and drum stands for the various marching drums, respectively. In the drum coupling system, a coupling structure for the various marching drums to the respective marching carriers and a coupling structure for the various marching drums to the respective drum stands are the same.
摘要:
A pedal device including a base and a pedal plate supported by the base in an inclinable manner and depressed by an operator. An urging mechanism urges the pedal plate in a direction opposite to the depression direction of the pedal plate. A force release mechanism releases the pedal plate from an urging force applied by the urging mechanism. A holding mechanism switches the pedal plate between a state in which the pedal plate is held in an operable manner by applying a resistance force resisting operation of the pedal plate and a state in which the resistance force to operation of the pedal plate is released and the urging force of the urging mechanism is effective.