Abstract: Provided is an electric linear actuator advantageous in downsizing and weight reduction. The electric linear actuator includes: a housing; a motor held by the housing; a nut member rotatably held with respect to the housing; a screw shaft threadedly engaged with the nut member; a drive shaft directly coupled with the motor; a rotation transmitting member rotatably supported about the drive shaft; a rotary driven member fixed to the nut member and rotated in accordance with the rotation transmitting member; a clutch member to which rotation of the drive shaft is transmitted, and which is provided so as to freely advance and retract in an axial direction of the drive shaft, and in which meshing with the rotation transmitting member is effected at an engagement position, and meshing with the rotation transmitting member is cancelled at a retraction position; and a setting lever capable of setting the clutch member to one of the advance position and the retraction position.

Abstract: A robot joint structure ? is composed of a metacarpal member 30 and a proximal member 40 swingably connected through a hinge 31 to a side end portion of the metacarpal member 30. The proximal member 40 includes a linear guide device 44 for an MP joint having a moving member movable in association with a self swing motion thereof, and by connecting a rod 32a and the moving member through a link mechanism 50, a driving force of an air-cylinder 32 is transmitted to the proximal member 40. On the other hand, a second robot joint structure ? is also provided with linear guide devices 48, 66, 74 and link mechanisms 69, 75, to which a driving force of the air-cylinder 62 is transmitted through a drive shaft 63 in association with a rod 62a. A robot finger is constructed by the first and second robot joint structures. According to such structures, smooth joint motion can be realized, and the robot joint structure and the robot finger having improved gripping force can be provided.

Abstract: A wall-mounting structure allowing an object to be supported such as furniture or an electrical appliance to freely move on the wall surface and capable of preventing the aesthetic appearance of the wall surface from being impaired, including a mounting plate to which the object to be supported is fixed and slide support members for movably supporting the mounting plate on the wall surface, in which each of the slide support members is composed of a track rail which has a substantially rectangular section and ball rolling surfaces on the both side surfaces thereof, and moving blocks assembled with the track rail through a large number of balls.

Abstract: Provided is a slide rail unit which, when accommodating a second rail (2) in a first rail (1), can automatically draw in the second rail to an end position and retain it at that position and which can be produced easily with a small number of parts and at low cost, the slide rail unit being equipped with a retaining pin (30) provided upright so as to be movable with respect to the first rail (1) in the longitudinal direction and the width direction thereof, an elastic member (31) for urging the retaining pin (30) toward the stroke end of the second rail (2), a pin guide member (32) provided on the first rail (1) and adapted to lock the retaining pin (30) at a standby position spaced apart from the stroke end against an urging force of the elastic member (31) and to guide the retaining pin (30) detached from the standby position toward the stroke end with the urging force, and a cam member (33) provided on the second rail (2) and adapted to detach the retaining pin (30) from the standby position of the pin gui

Abstract: A wheel for a wheelchair according to the present invention includes: an outer wheel or ring mounted on the inner periphery of a tire; an inner ring connected with a wheelchair frame (concentric with the outer ring and positioned inside the outer ring); a plurality of rolling elements interposed between the outer ring and the inner ring, arranged with an interval between each other in a circumferential direction; and a plurality of spacers (retainers or interval-holding members) for holding intervals between the rolling elements. Each spacer is in a shape extending along a circumferential direction of the outer ring and the inner ring, and is provided between the rolling elements respectively. The wheel does not have a hub and spokes, and the inner peripheral side does not rotate, and further the wheel weight is light. The wheelchair of the present invention includes the wheel for a wheelchair.

Abstract: Each shading plate comprises a rotating shaft and a driving shaft arranged vertically. First divided shading plate is loosely fitted to and supported by (not adhere to) the rotating shaft and rotates around the shaft. Second divided shading plates are fixed to the rotating shafts and rotate by rotating movement of the shafts. A driving shaft is connected longitudinally to (not adhere to) an edge of the first divided shading plate and supply power to rotate the first divided shading plates. Recesses are formed at the center of upper short side and at the center of lower short side of the first divided shading plate and the first divided shading plate and the second divided shading plates which form one and the same shading plate are so constructed that their short sides are overlapped each other.

Abstract: A guide apparatus has a standard end plate split into a pair of split parts that can be positioned with respect to each other with high accuracy and firmly secured to each axial end of a moving block body without fear of displacement during use. The guide apparatus has a moving block relatively movably attached to a track rail. The moving block body has in a section perpendicular to the axial direction a geometry that allows the moving block body to be assembled to the track rail at an intermediate part of the track rail. The end plate consists essentially of a pair of split parts that are splittable to right and left in the width direction of the end plate. One split part has a positioning pin projecting from a parting surface thereof. A positioning hole fittable with the positioning pin is provided in a parting surface of the other split part. The positioning pin is fitted into the positioning hole to form an end plate assembly.

Abstract: A slide rail unit for guiding an object to be pulled out, such as drawer, from a body, such as furniture or desk, in which the object is slid ably accommodated includes a body side rail provided for the body, and an object (i.e., drawer) side rail provided for the object to be pulled out to be slidable relative to the body side rail. The body side rail and the object side rail each has a portion bent in a circular-arc shape so that the object is pulled out along a circular-arc locus.

Abstract: A slide rail unit for guiding an object to be pulled out, such as drawer, from a body, such as furniture or desk, in which the object is slid ably accommodated includes a body side rail provided for the body, and an object (i.e., drawer) side rail provided for the object to be pulled out to be slidable relative to the body side rail. The body side rail and the object side rail each has a portion bent in a circular-arc shape so that the object is pulled out along a circular-arc locus.

Abstract: To provide a movable body driving device which has simple structure and is capable of moving a movable body in a certain direction and automatic drawer equipment. A movable body driving device is provided which comprises a roller 12 as a rotary member which is rotatably supported on an inner frame 11 as a supporting member and a motor 13 for rotating the roller 12. The roller 12 is brought in contact with the movable body, which is adapted to be movable in a certain direction, with predetermined force using elastic force of coil springs 21, 22, 23 as elastic members. The movable body is moved by frictional force between the movable body and the roller 12. Automatic drawer equipment employing the movable body driving device as its drawer driving mechanism is also provided.

Abstract: A slide rail unit for guiding an object to be pulled out, such as drawer, from a body, such as furniture or desk, in which the object is slid ably accommodated includes a body side rail provided for the body, and an object (i.e., drawer) side rail provided for the object to be pulled out to be slidable relative to the body side rail. The body side rail and the object side rail each has a portion bent in a circular-arc shape so that the object is pulled out along a circular-arc locus.

Abstract: At both sides of a pair of doors 10L, 10R, a pair of television cameras (two-dimensional image sensors) 18A, 18B for detecting a moving object, and a pair of spare infrared ray sensors 20A, 20B are provided. A central control unit 16 calculates the position and moving direction of moving object by image processing of outputs of television cameras 18A, 18B, and predicts the passing position of moving object on the vertical plane P when the moving object approaches, thereby calculating the target opening degree of a pair of doors 10L, 10R individually, and determines the target opening degree of doors in full closing when the moving object leaves away, and thus outputs move command signals to motor controllers 14L, 14R so that the pair of doors 10L, 10R may be set at the target opening degree.

Abstract: The invention provides a retracting apparatus of a sliding rail in which a self locking state is not cancelled without intention, a structure and an adjustment are simple, and a cost is inexpensive.

Abstract: A wall-mounting structure allowing an object to be supported such as furniture or an electrical appliance to freely move on the wall surface and capable of preventing the aesthetic appearance of the wall surface from being impaired, including a mounting plate to which the object to be supported is fixed and slide support members for movably supporting the mounting plate on the wall surface, in which each of the slide support members is composed of a track rail which has a substantially rectangular section and ball rolling surfaces on the both side surfaces thereof, and moving blocks assembled with the track rail through a large number of balls.

Abstract: A slide rail unit for guiding an object to be pulled out, such as drawer, from a body, such as furniture or desk, in which the object is slidably accommodated includes a body side rail provided for the body, and an object (i.e., drawer) side rail provided for the object to be pulled out to be slidable relative to the body side rail. The body side rail and the object side rail each has a portion bent in a circular-arc shape so that the object is pulled out along a circular-arc locus.

Abstract: A wheel for a wheelchair according to the present invention includes: an outer wheel 13 mounted on the inner periphery of a tire; an inner wheel 15 connected with a wheelchair frame 65 (concentric with the outer wheel 13 and positioned inside the outer wheel 13); a plurality of balls (rolling elements) 17 interposed between the outer wheel 13 and the inner wheel 15, arranged with an interval between each other in a circumferential direction; and a plurality of retainers (interval-holding members) 18 for holding intervals between the rolling elements 17. The retainer 18 is in a shape extending almost along a circumferential direction of the outer wheel 13 and the inner wheel 15, and is provided between the balls 17 respectively. The wheel does not have a hub and spokes, and the inner peripheral side does not rotate, and further the wheel weight is light. The wheelchair of the present invention includes the wheel for a wheelchair.

Abstract: A guide apparatus has a standard end plate split into a pair of split parts that can be positioned with respect to each other with high accuracy and firmly secured to each axial end of a moving block body without fear of displacement during use. The guide apparatus has a moving block relatively movably attached to a track rail. The moving block body has in a section perpendicular to the axial direction a geometry that allows the moving block body to be assembled to the track rail at an intermediate part of the track rail. The end plate consists essentially of a pair of split parts that are splittable to right and left in the width direction of the end plate. One split part has a positioning pin projecting from a parting surface thereof. A positioning hole fittable with the positioning pin is provided in a parting surface of the other split part. The positioning pin is fitted into the positioning hole to form an end plate assembly.

Abstract: The invention provides a retracting apparatus of a sliding rail in which a self locking state is not cancelled without intention, a structure and an adjustment are simple, and a cost is inexpensive.

Abstract: The invention provides a retracting apparatus of a sliding rail in which a self locking state is not cancelled without intention, a structure and an adjustment are simple, and a cost is inexpensive.

Abstract: Each shading plate comprises a rotating shaft and a driving shaft arranged vertically. First divided shading plate is loosely fitted to and supported by (not adhere to) the rotating shaft and rotates around the shaft. Second divided shading plates are fixed to the rotating shafts and rotate by rotating movement of the shafts. A driving shaft is connected longitudinally to (not adhere to) an edge of the first divided shading plate and supply power to rotate the first divided shading plates. Recesses are formed at the center of upper short side and at the center of lower short side of the first divided shading plate and the first divided shading plate and the second divided shading plates which form one and the same shading plate are so constructed that their short sides are overlapped each other.