Abstract: In a spool-type switching valve in which a recessed groove in which a packing is mounted is provided at a land portion of a spool, a groove bottom of the recessed groove is formed of an inclined surface that has an axial length half or larger than the length of the groove bottom in the direction of an axis and that continuously decreases in diameter from an upstream end to a downstream end, the inner periphery of the packing is brought into pressure-contact with the groove bottom with stress concentration at a pressure contact point that defines an upstream end of the inclined surface, and an angle ? that a connection surface connecting the pressure contact point on the groove bottom and the upstream end forms with the axis is within the range of 0°????, where ? is an angle that the inclined surface forms with the axis.

Abstract: [Object] To make it possible to detect, with a single pressure sensor, a malfunction of two solenoid valves for switching flow paths and to quickly and reliably exhaust residual pressure in an air device through a solenoid valve. [Solution] A residual pressure exhaust air circuit 1 includes: a main flow path 9 through which air from an air source 2 is supplied to an air cylinder 100; an exhaust flow path 10 through which air in the air cylinder 100 is exhausted; a first sensor 8 for detecting a malfunction of solenoid valves 12, 13; a detection flow path 11 through which air from the air source 2 is supplied to the first sensor 8; and the two solenoid valves 12, 13 that switch communication states among the main flow path 9, the exhaust flow path 10, and the detection flow path 11. The two solenoid valves 12, 13 are formed of two-position valves having first positions 12a, 13a at the time of OFF and second positions 12b, 13b at the time of ON and are synchronously ON/OFF controlled.

Abstract: Provided is a driving device including: a lens holder configured to hold an optical lens; a vibration wave motor including a movable-side rail member; a spherical member configured to connect the movable-side rail member and the lens holder to each other and transmit power; and a lens-barrel urging spring configured to urge the lens holder toward the movable-side rail member, wherein the spherical member and the lens-barrel urging spring are arranged at different positions when seen from an optical axis direction.

Abstract: A motor includes a vibrator, a contact member that contacts the vibrator, a first pressing unit that applies a pressing force in a first direction to the vibrator to bring the vibrator into contact with the contact member, a first holding member that holds the vibrator, a second holding member that holds the first holding member, and a second pressing unit that applies to the first holding member a pressing force in a second direction in which the vibrator and the contact member are displaced relative to each other by generated thrust. The first and second holding members contact each other in the second direction due to the pressing force of the second pressing unit. The first and second holding members are movable relative to each other in the first direction by the pressing force of the first pressing unit.

Abstract: A lens apparatus includes an optical element, a fixed member, a movable member configured to hold the optical element and movable in an optical axis direction relative to the fixed member, a guide member configured to guide a movement of the movable member in an optical axis direction, a first support member and a second support member spaced from each other in the optical axis direction, a pair of rotating elements held by the first support member and the second support member, respectively, and a biasing member configured to bias the pair of rotating elements and the guide member into contact with each other. The first support member and the second support member are fixed to one of the movable member and the fixed member. The guide member is fixed to the other of the movable member and the fixed member.

Abstract: A vibration-wave motor includes a vibrator having two protruding parts, a holding member configured to hold the vibrator, a movable member configured to translationally move together with the holding member, a rotating unit configured to allow the holding member to rotate around each of three axes relative to the movable member and to restrict the holding member from translating in each of the three axes relative to the movable member, a urging member configured to urge the holding member and the movable member so that the holding member and the movable member translationally move together, and a restricting unit configured to restrict the holding member from rotating around the rotating unit as a center by the urging member.

Abstract: A lens apparatus includes an imaging optical system, a movable member that holds at least one lens and is movable in a direction including component perpendicular to an optical axis of the imaging optical system, a coil, a first magnet, and a shield member that covers at least a portion of the coil viewed in an optical axis direction from an image plane side, covers at least a portion of the coil viewed in a first direction perpendicular to the optical axis from one side of the movable member, and covers at least a portion of the coil viewed in the first direction from the other side of the movable member.

Abstract: An image stabilization apparatus includes a fixing member, a movable member, a guiding member movable in a first direction orthogonal to the optical axis relative to the fixed member, and configured to guide the movable member while restricting a rotation of the movable member on the plane orthogonal to the optical axis relative to the fixed member, and a rolling member rollably held between the fixed member and the guiding member. The fixing member includes a first groove extending in the first direction and contacts the rolling member. The guiding member includes a second groove that extends in the first direction and contacts the rolling member. The rolling member can contact an end of the first groove and an end of the second groove while the guiding member is located at one of ends in a movable range of the guiding member in the first direction.

Abstract: An image stabilizing apparatus includes a driver configured to drive an optical system configured to correct an image blur in a direction that includes a component in a direction orthogonal to an optical axis, detectors configured to detect position information on the optical system, and a controller configured to control the driver. The detectors are disposed at a first detecting position and a second detecting position on a plane orthogonal to the optical axis. At the first detecting position, position information in a first detecting direction and position information in a second detecting direction different from the first detecting direction are detected. At the second detecting position, position information in a third detecting direction is detected. At least two of the first to third detecting directions are orthogonal to each other.

Abstract: The rotation detection apparatus including an annular member, a scale member having flexibility and being fixed to a circumferential portion of the annular member, and a detector facing the scale member and configured to detect relative rotation between the scale member and the detector. The circumferential portion of the annular member includes multiple convex portions and multiple concave portions along a circumferential direction of the annular member. The scale member is in contact with the multiple convex portions. Both ends, in the circumferential direction, of the scale member are fixed to the circumferential portion.

Abstract: In a spool-type switching valve in which a recessed groove in which a packing is mounted is provided at a land portion of a spool, a groove bottom of the recessed groove is formed of an inclined surface that has an axial length half or larger than the length of the groove bottom in the direction of an axis and that continuously decreases in diameter from an upstream end to a downstream end, the inner periphery of the packing is brought into pressure-contact with the groove bottom with stress concentration at a pressure contact point that defines an upstream end of the inclined surface, and an angle ? that a connection surface connecting the pressure contact point on the groove bottom and the upstream end forms with the axis is within the range of 0°????, where ? is an angle that the inclined surface forms with the axis.

Abstract: An absolute position detection apparatus includes a calculator configured to generate, based on a detection signal, a first signal, and a second signal. A relative movement range of the scale and the sensor includes a boundary between adjacent detection units in the first signal such that at least one of the boundary is included in each of a plurality of areas in the relative movement range. The calculator is configured to specify a detection unit, to be used to calculate the absolute position, in the first signal based on a code of each detection unit of the second signal in an area that includes the boundary of the plurality of areas.

Abstract: Provided is a driving device including: a lens holder configured to hold an optical lens; a vibration wave motor including a movable-side rail member; a spherical member configured to connect the movable-side rail member and the lens holder to each other and transmit power; and a lens-barrel urging spring configured to urge the lens holder toward the movable-side rail member, wherein the spherical member and the lens-barrel urging spring are arranged at different positions when seen from an optical axis direction.

Abstract: A lens apparatus includes an optical element, a fixed member, a movable member configured to hold the optical element and movable in an optical axis direction relative to the fixed member, a guide member configured to guide a movement of the movable member in an optical axis direction, a first support member and a second support member spaced from each other in the optical axis direction, a pair of rotating elements held by the first support member and the second support member, respectively, and a biasing member configured to bias the pair of rotating elements and the guide member into contact with each other. The first support member and the second support member are fixed to one of the movable member and the fixed member. The guide member is fixed to the other of the movable member and the fixed member.

Abstract: A manifold block is provided with attachment grooves for attaching silencer members and a plurality of individual exhaust paths that are branched from the attachment grooves and open on fixing regions of a valve mounting surface. Openings along the axes of the attachment grooves are formed as exhaust ports in lightening grooves on the bottom surface of the manifold block. The silencer members are held in the attachment grooves. The individual exhaust paths communicate with the exhaust ports through the silencer members.

Abstract: An optical image stabilization apparatus includes an image stabilization element, a base member, a shift member configured to hold the image stabilization element and movable in a direction including a component orthogonal to an optical axis relative to the base member, an elastic member configured to support the image stabilization element and the shift member, and a driver configured to move the shift member. The driver includes a first magnet part and a second magnet part provided on one of the base member and the shift member, a coil provided on the other of the base member and the shift member, a first magnetized portion provided on a side of the first magnet part with respect to a center axis of an opening in the coil, and a second magnetized portion provided on a side of the second magnet part with respect to the center axis.

Abstract: A sealing structure is configured in the following manner. When a packing having a pair of sealing portions formed at opposite edge portions of the outer peripheral surface thereof is installed in a land portion of a spool, the outside diameter of the packing is made smaller than the diameter of a slide surface of a spool hole. In a state in which the outer periphery of the land portion opposes the slide surface and a pressurized fluid is supplied from a gas supply channel to the first space of first and second spaces that are partitioned by the land portion, the edge portion of the packing positioned near the first space is elastically elongated in a radial direction due to pressure of the pressurized fluid and thereby narrows a gap formed between the first sealing portion and the slide surface of the spool hole or abuts the slide surface.

Abstract: An integrated multiple valve manifold that is reduced in size and weight by integrally incorporating a plurality of valve mechanisms in one manifold. The one manifold, which is formed of an extruded material through which a fluid supply hole and fluid discharge holes extend, includes a plurality of valve holes each of which communicates with the fluid supply hole and the fluid discharge holes by directly intersecting both of the fluid supply hole and the fluid discharge holes, output ports that are formed so as to individually communicate with the valve holes, spools that are slidably inserted into the valve holes, and electromagnetic pilot valves that are individually attached to one ends or both ends of the valve holes.

Abstract: A motor includes a first vibrator, a plurality of biasing parts that are disposed around the first vibrator and that presses the first vibrator onto a contacting member in contact with the first vibrator, a first pressing member that is biased by the plurality of biasing parts and that includes a pressing part pressing the first vibrator by biasing force of the plurality of biasing parts, and a second pressing member that is biased by the plurality of biasing parts. The first vibrator and the contacting member move relatively by vibrations that occur in the first vibrator. The first and second pressing members integrally moves while the first vibrator moves. The first pressing member and the first vibrator are tiltable around a first direction orthogonal to both of a moving direction of the first vibrator and a biasing direction of the plurality of biasing parts.

Abstract: A manifold block is provided with attachment grooves for attaching silencer members and a plurality of individual exhaust paths that are branched from the attachment grooves and open on fixing regions of a valve mounting surface. Openings along the axes of the attachment grooves are formed as exhaust ports in lightening grooves on the bottom surface of the manifold block. The silencer members are held in the attachment grooves. The individual exhaust paths communicate with the exhaust ports through the silencer members.