Abstract: A lens drive device may include a movable body having a lens and a coil, a support body movably supporting the movable body, a magnetic drive mechanism having a magnet for driving the movable body together with the coil, a restricting member for restricting movement of the movable body due to an electromagnetic force generated when an electric current is supplied to the coil, a magnetic member disposed in the movable body to be magnetically attracted by the magnet. In a non-energized state where the coil is not energized, following relationships are satisfied: W>F1, W>F2, and W<F1+F2. wherein a force with which the restricting member urges the movable body toward a non-energized position is “F1”; a force in the optical axis direction with which the magnetic member is attracted by the magnet is “F2”; and a weight of the entire movable body is “W”.

Abstract: A lens drive device may include a movable body having a lens and a coil, a support body movably supporting the movable body, a magnetic drive mechanism having a magnet for driving the movable body together with the coil, a restricting member for restricting movement of the movable body due to an electromagnetic force generated when an electric current is supplied to the coil, a magnetic member disposed in the movable body to be magnetically attracted by the magnet. In a non-energized state where the coil is not energized, following relationships are satisfied: W>F1, W>F2, and W<F1+F2. wherein a force with which the restricting member urges the movable body toward a non-energized position is “F1”; a force in the optical axis direction with which the magnetic member is attracted by the magnet is “F2”; and a weight of the entire movable body is “W”.

Abstract: Lens drive unit is provided with a moving lenticular body (sleeve 15, etc.) equipped with a lens, a driving mechanism to move the moving lenticular body in the optical axis direction of the lens and a fixed body (yoke 16, etc.) that supports the moving lenticular body so as to make it movable in the optical axis direction of the lens. The driving mechanism is provided with magnet 17 magnetized in the direction perpendicular to the optical axis direction of the lens, and multiple coils (first coil 14 and second coil 14?) arranged so that the magnet is present in the optical axis direction of the lens. Either one of the magnet and the multiple coils is installed in the moving lenticular body, and the other in the fixed body.

Abstract: [Problems to be Solved] To provide a lens drive unit which can stabilize stationary position accuracy a lens unit while without increasing manufacturing costs. [Solution step] Lens drive unit 10 which comprises a moving lenticular body (sleeve 15 or the like) equipped with a lens, a drive mechanism which moves the moving lenticular body along the optical axis X, and a fixed body (yoke 16 or the like) which movably supports a moving lenticular body along the optical axis X. The drive mechanism comprises magnet 17 magnetized in the direction perpendicular to the optical axis X, and multiple coils (first coil 14 and second coil 14?) arranged in such a manner that magnet 17 is sandwiched along the optical axis X.

Abstract: An armature of an electric rotating machine includes an armature core provided with plural divided cores arranged in a circumferential direction. A salient pole is provided in each of the plural divided cores. A coil winding is wound around each salient pole. A convex winding configuration of the coil winding is formed so as to project on an adjacent salient pole side over a boundary line between adjacent divided cores. A concave winding configuration of the coil winding is formed so as to be hollow from the boundary line so as not to interfere with the convex winding configuration.

Abstract: A coupling device includes a first coupling section having a large bore, a small bore, and a valve seat between the large and small bores; a second coupling section having a second bore opening at a contact surface which is opposed to the first coupling section; a valve having a valve head normally resting on the valve seat and a tubular body snugly fitted in the small bore and having an axial opening with a mouth at an end and a plurality of radial openings at the other end; a drain passage provided along the small bore and having an end opening at a bottom of the large bore and the other end opening at a lower side of the first coupling section; and a drain valve provided in the drain passage and having a cylindrical hole intersecting the drain passage and a piston snugly fitted in the cylindrical hole and having a circumferential channel for opening the drain passage and a land portion for closing the drain passage.

Abstract: A lock system for a pipe joiner device is disclosed having a fixed-side connector block provided with at least a connector and a moving-side connector block provided with another connector for engagement with and disengagement from the foregoing connector, in which as the piston rod of a single actuator cylinder advances forward, lock levers mounted to the moving-side connector block moves forward into a connection opening formed in the fixed-side connector block and also, the positional relation between pin members fixedly mounted on the lock levers and L-shaped guide slots provided in a dog which is supported by the forward end of the piston rod for forward and backward movement varies thus to extend toggle links joined between the front ends of the lock levers and the forward end of the piston rod, so that hook portions formed on the front ends of their respective lock levers can engage with a connecting opening end area of the fixed-side connector block to join the moving-side connector block with the fix