Abstract: A focal plane shutter for a camera which is suitable for miniaturization and arranged to prevent wear debris from entering into a blade chamber via a base plate hole. Wall portions (1j and 1k) are formed protruding towards the blade chamber side surface from edges of the elongated holes (1b and 1c) provided in a base plate (1). Rear blade-use arms (14 and 15) have step-like bent portions (14b and 15a) formed therein so that a tip end side of the arms is positioned further toward the base plate (1) than the rotation center side. During operation, the bent portions (14b and 15b) allow a small gap to be maintained between the wall portion (1k) and the rear blade-use arms (14 and 15). The freedom in determining the layout is not restricted so that miniaturization of the device is possible and entry of debris into the blade chamber is suppressed.

Abstract: When a hold member rotates on a shaft counterclockwise in the set operation, pressing parts of a pressing member which is fitted on top end of the hold member press pressed parts of iron piece members to rotate a lock-releasing member for a first blade and a lock-releasing member for a rear blade so that the iron piece members are made to come into contact with iron-core members of electromagnets, while an engagement pin presses an arm of a connection spring to rotate a restraining member clockwise so that a restraining part of the restraining member moves into the trajectory of the movement of a restrained part of the lock-releasing member for the rear blade.

Abstract: In a vehicle driving assistance apparatus having an electric motor to impart steering torque to the driver and a driving control unit that conducts collision avoidance assistance control and other steering control including lane departure prevention control, power steering control and parking assistance control for providing assistance during parking of the vehicle, when a warning for alerting the driver is made by imparting torque to the steering wheel via the motor, the control input of the other steering control is suppressed, i.e. is reduced during either the first predetermined time before warning or the second predetermined time after warning. Owing to this configuration, the driver can be enabled to perceive the warning without fail even when another steering control is performed in parallel.

Abstract: In a focal plane shutter according to the present invention, a support plate is placed while a plate plane of the support plate is parallel to a shutter base plate, a second blade-driving member is fitted to a shaft erectly provided on the shutter base plate, the second blade-driving member being rotated by the biasing force of a second blade-driving spring, an electromagnet for second blade is fitted to the support plate, the electromagnet attracting and holding an iron piece member fitted to the second blade-driving member, a printed wiring board on which a wiring pattern for supplying electric current to the electromagnet is formed is placed in a hole formed in the support plate, and terminal pins of the electromagnet are soldered to the both ends of a coil.

Abstract: A blade room for a second blade group is formed between a shutter base plate and a middle plate and a blade room for a first blade group is formed between the middle plate and an auxiliary base plate, by separating a space between the shutter base plate and the auxiliary base plate by the middle plate. A push pin which is planted on the shutter base plate pushes a portion on the lower area of the middle plate toward the auxiliary base plate so that the middle plate bends in the shape of an arc. Also, the area of the middle plate below the exposure aperture has the narrowest width in the portion which is pushed by the push pin and the pushed portion of the middle plate has a shape by which the area of the middle plate below the exposure aperture is easy to bend.

Abstract: A tag communication apparatus conducts wireless communication with an RFID tag through a radio wave. The tag communication apparatus includes a data receiver that receives transmit data to be transmitted to the RFID tag, a data compressor that compresses at least a part of the transmit data obtained by the data receiver, and outputs the compressed data, and a transmitter that transmits the compressed data, which is compressed and output by the data compressor, to the RFID tag.

Abstract: In a first blade unit-driving unit which is rotated by elastic force of a first blade unit-driving spring in shooting, its driving pin rotates a first brake member counterclockwise and a second brake member clockwise against the elastic force of a coil spring fitted to a fitting shaft and against friction resistance force of a friction-providing part including a plate spring or the like at the final stage of the rotation of the first blade unit-driving unit, the plate spring being fitted to the fitting shaft, so that the first blade unit-driving unit is braked, and, at this point, one end part of the first blade unit-driving spring contacts a part to be pushed of the first brake member and controls the counterclockwise rotation of the first brake member, so that braking force to the first blade unit-driving unit acts on the first blade unit-driving unit larger and more surely.

Abstract: When photographing using an optical finer, a hold member rotates, and a pressing member pushes a pushed portion of an iron piece member to rotate an unlocking member for a first blade and an unlocking member for a second blade to bring the iron piece member into contact with an iron core member of an electromagnet. When photographing using an electronic finder, a permanent magnet rotor of an electromagnetic device is rotated in a state where the electromagnet is not magnetized, a deterring member is made to face the operation locus of a deterred portion of the unlocking member for a second blade, and then, the hold member is rotated. Thereby, the unlocking member for a second blade is deterred by the deterring member so as to allow observation using the electronic finder without pushing the locking member for a second blade.

Abstract: A blade room for a second blade group is formed between a shutter base plate and a middle plate and a blade room for a first blade group is formed between the middle plate and an auxiliary base plate, by separating a space between the shutter base plate and the auxiliary base plate by the middle plate. A push pin which is planted on the shutter base plate pushes a portion on the lower area of the middle plate toward the auxiliary base plate so that the middle plate bends in the shape of an arc. Also, the area of the middle plate below the exposure aperture has the narrowest width in the portion which is pushed by the push pin and the pushed portion of the middle plate has a shape by which the area of the middle plate below the exposure aperture is easy to bend.

Abstract: In a first blade unit-driving unit which is rotated by elastic force of a first blade unit-driving spring in shooting, its driving pin rotates a first brake member counterclockwise and a second brake member clockwise against the elastic force of a coil spring fitted to a fitting shaft and against friction resistance force of a friction-providing part including a plate spring or the like at the final stage of the rotation of the first blade unit-driving unit, the plate spring being fitted to the fitting shaft, so that the first blade unit-driving unit is braked, and, at this point, one end part of the first blade unit-driving spring contacts a part to be pushed of the first brake member and controls the counterclockwise rotation of the first brake member, so that braking force to the first blade unit-driving unit acts on the first blade unit-driving unit larger and more surely.

Abstract: When photographing using an optical finer, a hold member rotates, and a pressing member pushes a pushed portion of an iron piece member to rotate an unlocking member for a first blade and an unlocking member for a second blade to bring the iron piece member into contact with an iron core member of an electromagnet. When photographing using an electronic finder, a permanent magnet rotor of an electromagnetic device is rotated in a state where the electromagnet is not magnetized, a deterring member is made to face the operation locus of a deterred portion of the unlocking member for a second blade, and then, the hold member is rotated. Thereby, the unlocking member for a second blade is deterred by the deterring member so as to allow observation using the electronic finder without pushing the locking member for a second blade.

Abstract: This steering wheel retention state judging device includes: a torque application unit that applies a torque on a steering wheel of a vehicle, the steering wheel operated by a driver; an angle sensor that detects a steering angle of the steering wheel; and a steering wheel retention state judging unit that judges a retention state of the steering wheel by the driver based on the steering angle of the steering wheel when the torque is applied by the torque application unit.

Abstract: A first blade includes two arms and four blades, and is arranged between a shutter base plate and an intermediate plate. A second blade includes two arms and four blades, and is arranged between the intermediate plate and an auxiliary base plate. During an exposure operation, the four blades of the first blade are brought into an overlap state from a development state and the four blades the second blade are brought into the development state from the overlap state. Since a contour forming edge of the intermediate plate above the opening portion is formed in the shape of an arc, the four blades of the second blade are able to start an operation appropriately from the overlap state.

Abstract: When a hold member rotates on a shaft counterclockwise in the set operation, pressing parts of a pressing member which is fitted on top end of the hold member press pressed parts of iron piece members to rotate a lock-releasing member for a first blade and a lock-releasing member for a rear blade so that the iron piece members are made to come into contact with iron-core members of electromagnets, while an engagement pin presses an arm of a connection spring to rotate a restraining member clockwise so that a restraining part of the restraining member moves into the trajectory of the movement of a restrained part of the lock-releasing member for the rear blade.

Abstract: A tag communication apparatus conducts wireless communication with an RFID tag through a radio wave. The tag communication apparatus includes a data receiver that receives transmit data to be transmitted to the RFID tag, a data compressor that compresses at least a part of the transmit data obtained by the data receiver, and outputs the compressed data, and a transmitter that transmits the compressed data, which is compressed and output by the data compressor, to the RFID tag.

Abstract: In a vehicle driving assistance apparatus having an electric motor to impart steering torque to the driver and a driving control unit that conducts collision avoidance assistance control and other steering control including lane departure prevention control, power steering control and parking assistance control for providing assistance during parking of the vehicle, when a warning for alerting the driver is made by imparting torque to the steering wheel via the motor, the control input of the other steering control is suppressed, i.e. is reduced during either the first predetermined time before warning or the second predetermined time after warning. Owing to this configuration, the driver can be enabled to perceive the warning without fail even when another steering control is performed in parallel.

Abstract: This steering wheel retention state judging device includes: a torque application unit that applies a torque on a steering wheel of a vehicle, the steering wheel operated by a driver; an angle sensor that detects a steering angle of the steering wheel; and a steering wheel retention state judging unit that judges a retention state of the steering wheel by the driver based on the steering angle of the steering wheel when the torque is applied by the torque application unit.