Abstract: A sensor body including: a plate-like flexible intermediate layer that is stretchable in a surface direction; a first sensor element laminated on one surface of the intermediate layer; and a second sensor element laminated on the other surface of the intermediate layer facing the one surface. The first sensor element is configured to be capable of detecting a length corresponding to a length of a first reference line segment on the one surface of the intermediate layer, and the second sensor element is configured to be capable of detecting a length corresponding to a length of a second reference line segment that is on the other surface of the intermediate layer and parallel to the first reference line segment.

Abstract: The present invention is directed to a robot arm coupling apparatus comprising a master plate 1 attached to a robot arm, a tool plate 2 to which a tool or like element is attachable and a locking mechanism 27 for jointing and locking both the plates 1 and 2 together, and has an object of making the robot arm coupling apparatus thinner while employing ball members 44.

Abstract: The present invention is directed to a rotary joint that includes a power slip ring and an electric signal slip ring, both for passing electricity between a stator and a rotor The system includes a plurality of slip rings (21,31) and a plurality of circumferentially extending fluid flow annular passages (12, 13, 14) formed in axially aligned relaation between the stator and the rotor. Water passages are constituted by some of the annual passages (12,13) and one of the annular passages (14), typically the lowest one, is used an air passage for air under pressure or an air-filled drain so that water leakage can be absorbed into the air passage or drain and does not penetrate into the region of the slip rings. The slip ring (21) with collector rings (22) is used for power and slip rings (31) are used for signals. Water passages are constituted by the annular passages, other than one of the annular passages located towards the power slip ring and the electric signal slip ring.

Abstract: In a rotary joint A including a power slip ring 21 and an electric signal slip ring 31 both for passing electricity between a stator 1 and a rotor 6, for the purpose of avoiding penetration of water droplets into the surroundings of the slip rings 21 and 31 to prevent the occurrence of an accident due to electric leakage, a plurality of circumferentially extending annular passages 30, 30, . . . are formed in axially aligned relation between the stator 1 and the rotor 6, and water passages 12 and 13 are constituted by the annular passages 30, 30 other than one of the annular passages 30, 30, . . . which is located towards the power slip ring 21 and the electric signal slip ring 31.

Abstract: In a rotary joint A including an electric signal slip ring 31 for passing different electric signals between a stator 1 and a rotor 6, for the purpose of stable transmission of electric signals in the electric signal slip ring 31, stationary side electrode stacks 38a and 38b are provided individually by stacking each pair of axially adjacent two 36b to 36e of six ring-plate-shaped stationary side electrodes 36a to 36f arranged concentrically with the axis of the stator 1 and aligned axially with each other together with one of stationary side insulating seats 37a and 37b interposed between the pair of axially faced stationary side electrodes, rotating side electrode stacks 42a to 42c are provided individually by stacking each pair of axially adjacent two 40a to 40f of six ring-plate-shaped rotating side electrodes 40a to 40f arranged concentrically with the axis of the rotor 6 and aligned axially with each other together with one of rotating side insulating seats 41a and 41c interposed between the pair of axi

Abstract: A pin insertion member for inserting guide pins into pin holes of an optical fiber connector includes a retaining portion for holding at least two guide pins such that one-end portions of the at least two guide pins project from the retaining portion. The retaining portion includes retaining holes for holding other-end portions of the at least two guide pins with a predetermined space therebetween in a widthwise direction, and the pin insertion member has a plurality of slits between the retaining holes and an outer surface of the retaining portion, whereby the at least two guide pins are adapted to be insertable at a stroke into corresponding pin holes of an optical fiber connector.

Abstract: A robot arm coupling apparatus. This apparatus has an inner assembly attached to a robot arm, an outer assembly to which a tool or the like is attached and a locking means to lock both assemblies to each other. Said locking means comprises a piston member supported by the inner assembly slidably between the locking position and the unlocking position, a plurality of ball members surrounding said piston member and supported by the inner assembly, and a ball retainer which is provided at the outer assembly, which is contactable at its tapered surface with the ball member and holds both assemblies together, when the piston member moves to the locking position, in cooperation with the ball member. The working surface of the piston member including first and second tapered surfaces and at least an axially extending cylindrical surface.