Abstract: There is provided an actuator capable of downsizing the actuator in axial and radial directions of a motor. The actuator includes a motor having an output shaft, a motor housing into which the motor is housed, an outer race, an inner race assembled with the outer race to be rotatable, a cross-roller bearing supporting an object to be rotatable so that the object member is constituted to be rotatable, wherein the outer race is mounted to the motor housing, the inner race is clamped by a support member rotating in accordance with the rotation of the output shaft and the object member fixed to the support member.

Abstract: This rolling device 10 includes an inner member 11 provided with a rolling element rolling groove 11a, and an outer member 21 attached to the inner member 11 to be relatively movable via a plurality of rolling elements 12. The outer member 21 includes an outer member main body portion 22 including a loaded rolling element rolling groove 25 forming a loaded rolling element rolling raceway in cooperation with the rolling element rolling groove 11a and a non-loaded rolling element rolling raceway 33 arranged to correspond to the loaded rolling element rolling groove 25, and a pair of lids 24 attached to both end surfaces of the outer member main body portion 22 in a relatively-moving direction and having at least a part of a direction changing raceway 35 connecting one end of the loaded rolling element rolling raceway to one end of the non-loaded rolling element rolling raceway 33. Each of the lids 24 is provided with a projection portion 24b including at least the part of the direction changing raceway 35.

Abstract: A lens moving mechanism includes a first lens guide unit which guides a lens mount, on which a lens for projecting light is mounted, in two orthogonal axis directions among three orthogonal axis directions including an optical axis direction of the light. The first lens guide unit includes a first track rail and a second track rail which are disposed to intersect each other in the two orthogonal axis directions, and one or a plurality of slider blocks which are mounted to be relatively movable on both or either of the first track rail and the second track rail. The one or plurality of slider blocks are disposed at an intersecting portion between the first track rail and the second track rail in one axis direction orthogonal to the two orthogonal axis directions, or are disposed to at least partially overlap each other in the one axis direction.

Abstract: A lens moving mechanism includes a guide section which supports a lens mount unit on which a lens for projecting light is mounted and guides the lens mount unit in three orthogonal axis directions including an optical axis direction of the light, and a base member which supports a saddle guide unit of the guide section and is fixed to a projector main body. The saddle guide unit includes first linear motion guide devices which are fixed to the base member and guide the lens mount unit in an orthogonal-to-optical axis direction orthogonal to the optical axis direction.

Abstract: A foreign matter detecting device comprises a first yoke portion and a second yoke portion which adjoin a permanent magnet respectively. The both yoke portions are arranged while interposing a reference space therebetween. Further, a detour yoke portion is arranged. A magnetic resistance of the first detour space being smaller than a magnetic resistance of the predetermined reference space, and magnetic resistances of the second detour space and the first detour space being larger than the magnetic resistance of the predetermined reference space. A detection signal in relation to the foreign matter is outputted on the basis of a magnetic flux density provided in at least any one of spaces of the reference space and the first detour space, corresponding to an amount of retention of the foreign matter in a retaining portion which is provided so that the foreign matter is retained in the second detour space.

Abstract: A motion guide device including a hollow track base that has a rolling element rolling face formed along a longitudinal direction and has a hollow portion formed to be substantially rectangular in section along the longitudinal direction, and a moving member that has a load rolling element rolling face formed in a position facing the rolling element rolling face, the moving member being assembled movably in the longitudinal direction of the track base via a plurality of rolling elements between the rolling element rolling face and the load rolling element rolling face, wherein in the track base, a heat-treated region in which heat treatment is applied to a region including the rolling element rolling face and a non-heat-treated region to which heat treatment is not applied are formed in a section orthogonal to the longitudinal direction, and the heat-treated region is not superimposed on corner portions of the hollow portion.

Abstract: A cap for a motion guide apparatus which can reduce generation of a burr and can also increase the fixing force. The cap of the present invention is for blocking a fastening member insertion hole of a guide rail of a motion guide apparatus. The cap includes a disc-shaped top surface portion, a cylindrical side surface portion hanging down from the top surface portion, and a plurality of protrusions provided on an outer peripheral surface of the side surface portion. The plurality of protrusions is apart from each other in a circumferential direction on the outer peripheral surface of the side surface portion, and is present at an upper end portion, or from the upper end portion to an axially middle portion, of the outer peripheral surface. A thickness of the side surface portion between the protrusions is less than a thickness of the top surface portion.

Abstract: Provided is a rolling guide device which is capable of directly recognizing an operation condition of a moving member with respect to a track member or a circulation state of rolling elements in an endless circulation path, the rolling guide device including: a track member having a rolling surface; and a moving member, which is assembled to the track member through intermediation of a large number of rolling elements which roll on the rolling surface, and has an endless circulation path for the rolling elements, the moving member including: a main body member having a load rolling surface and a no-load return path for the rolling elements, the load rolling surface being opposed to the rolling surface of the track member to define a load path for the rolling elements, a pair of covers, which have direction change paths for allowing the rolling elements to move between the load path and the no-load return path, and is mounted to the main body member; and a measurement plate, which is interposed at least betwee

Abstract: In a motion guiding device including a track body, and a moving body provided to be movable along the track body, the track body includes a groove formed along a longitudinal direction of the track body and a plurality of rolling surfaces formed inside and outside the groove. The moving body includes a plurality of rotating bodies that roll on the plurality of rolling surfaces, and adopts a configuration in which respective contacts in which the plurality of rotating bodies are in contact with the plurality of rolling surfaces are disposed on the same straight-line in a cross-section orthogonal to the longitudinal direction of the track body.

Abstract: A seat moving/securing device 10 includes a long reference member 11 extending in a longitudinal direction of a seat installation surface and securely installed, a leg part attachment member 50a having securely installed therein a leg part of a seat, a linear guide 20 attached between the long reference member 11 and the leg part attachment member 50a and enabling the leg part attachment member 50a to move horizontally along a longitudinal direction of the long reference member 11, and a locking mechanism 60 securely installed on the leg part attachment member 50a. A coil spring 68 serving as an elastic body exhibiting a pressing force is installed between the leg part attachment member 50a and the linear guide 20. Due to having this type of configuration, the seat moving/securing device 10 can move and secure a seat 200 easily and quickly.

Abstract: In this motion guide device (10), a track member (20) has a recess or protrusion (51) that is formed in a longitudinal direction, and a moving member (30) has a holding protrusion or holding recess (53) that corresponds to the recess or protrusion (51) formed in the track member (20). When force is applied in a direction that would cause relative separation of the moving member (30) and the track member (20), the holding protrusion or holding recess (53) holds onto the recess or protrusion (51) such that the moving member (30) and the track member (20) are unable to be separated. With this configuration, a motion guide device that is both compact and capable of withstanding a strong external load can be obtained.

Abstract: Provided is a rolling guide device which is capable of preventing uneven wear of a holding belt by alleviating a tensile force that acts on the holding belt when the holding belt circulates in an endless circulation path together with rolling elements. The endless circulation path has a guide groove configured to guide movement of the holding belt in the endless circulation path.

Abstract: This mobile-object-holding tool is mounted in place of a track body on a mobile object which moves along the track body, wherein the mobile object includes at least a pair of rolling element load rolling grooves through which a plurality of rolling elements roll and the mobile-object-holding tool includes a pair of holding parts which face the pair of rolling element load rolling grooves and hold the plurality of rolling elements, a biasing linking part which links the pair of holding parts together and biases the pair of holding parts away from each other, and a deformation regulating part which regulates a mounted contraction amount by which the biasing linking part is capable of contracting after being mounted on the mobile object to a predetermined value or less.

Abstract: A slider slidably straddling over a guide rail, an attachment plate having a square U-shape attached to an end surface of the slider and including opposite vertical frames and a horizontal frame connecting the vertical frames, and a sliding scraper fitted in a square U-shape groove of the attachment plate and including opposite vertical portions and a horizontal portion connecting the opposite vertical portions, and a groove portion that is in sliding contact with the guide rail are provided, and protrusion portions at which the vertical frames and the vertical portions are in abutment with each other are provided an open end portion of an inner side surface of each of the opposite vertical frames of the attachment plate or an end portion of an outer side surface of each of the opposite vertical portions of the sliding scraper, the end portion facing the relevant open end portion.

Abstract: A speed reduction apparatus supports a third crown gear that undergoes wave motion. The speed reduction apparatus includes: a first crown gear; a second crown gear; a third crown gear having opposing teeth facing the first crown gear and opposing teeth facing the second crown gear, back to back; and cam units and that cause the third crown gear to undergo wave motion. The cam units and have a first cam on the first crown gear side with respect to the third crown gear, and a second cam on the second crown gear side with respect to the third crown gear. The first and second cams sandwich the third crown gear. A first rolling element between the first cam and the third crown gear is capable of rolling motion, and a second rolling element between the second cam and the third crown gear is capable of rolling motion.

Abstract: Provided is a diagnosis method of appropriately recognizing a state of a rolling surface of a track member of a rolling guide device or a lubrication state of rolling elements using a sensor mounted to the rolling guide device. The diagnosis method is applied to a rolling guide device including: a track member having a rolling surface extending along a longitudinal direction of the track member; and a moving member, which is assembled to the track member through intermediation of a plurality of rolling elements configured to roll on the rolling surface so that the moving member is movable along the track member, and has an endless circulation path for the rolling elements.

Abstract: Provided is a ball screw capable of reducing unevenness of load distribution of balls and extending a service life of the ball screw. In the ball screw, one end part 6 of a nut 2 on a flange 2-2 side is closer to an end 9 of a screw shaft 1 on a fixed side than the other end part 7 of the nut 2 on a side opposite the flange 2-2 is, two or more circulation paths 5a to 5c are arranged in an axial direction of the nut 2, and a diameter of a ball 3a in the circulation path 5a closest to the flange 2-2 of the nut 2 is smaller than a diameter of a ball 3c in the circulation path 5c remotest from the flange 2-2 of the nut 2.

Abstract: A cap for a motion guide apparatus which can reduce generation of a burr and can also increase the fixing force. The cap of the present invention is for blocking a fastening member insertion hole of a guide rail of a motion guide apparatus. The cap includes a disc-shaped top surface portion, a cylindrical side surface portion hanging down from the top surface portion, and a plurality of protrusions provided on an outer peripheral surface of the side surface portion. The plurality of protrusions is apart from each other in a circumferential direction on the outer peripheral surface of the side surface portion, and is present at an upper end portion, or from the upper end portion to an axially middle portion, of the outer peripheral surface. A thickness of the side surface portion between the protrusions is less than a thickness of the top surface portion.

Abstract: Provided is a rolling guide device which is capable of preventing uneven wear of a holding belt by alleviating a tensile force that acts on the holding belt when the holding belt circulates in an endless circulation path together with rolling elements. The endless circulation path has a guide groove configured to guide movement of the holding belt in the endless circulation path.

Abstract: A press-fitting jig for a closure cap which is configured to press-fit a closure cap into a bolt mounting hole formed in a track rail of a guide device. The press-fitting jig is mounted to a moving block, which is assembled to the track rail through intermediation of a plurality of rolling elements and is configured to move on the track rail. The press-fitting jig includes: a finishing surface which is brought into slide contact with an upper surface of the track rail having the bolt mounting hole opened therein; and a guide surface, which is formed adjacent to the finishing surface and forms a wedge-shaped space with the track rail in a longitudinal direction of the track rail, the guide surface being configured to push the closure cap temporarily placed in the bolt mounting hole into the bolt mounting hole along with movement of the moving block.