A robotic picking assembly (100) comprising an arm support arrangement (8) configured to move vertically and to rotate about a vertical axis. A horizontally extendable arm (1) is supported in the arm support arrangement. A gripping tool (20) arranged at a free end (1a) of the arm. The arm comprises arm modules (2) linked together in a chain. The arm modules (2) have a pivot means (4) linking adjacent arm modules together in a pivoting manner and a pivot restriction means (15, 16, 18, 19) limiting curving of the arm to only one direction. The arm support arrangement (8) has an arm guiding arrangement (25, 21, 21a, 21b, 33) guiding the arm between an extended position and a retracted position, and an arm drive arrangement (7) configured to move the arm between said extended and retracted positions.

An up/down section 4 of a robot arm mechanism includes: a pair of side frames disposed on a rotating section of a turning rotary joint; a cylindrical body supported in an axially rotatable manner by the side frames; a motor unit including a motor and a gearbox for rotationally driving the cylindrical body; connecting sections for connecting with an arm support body that movably supports an arm section; and a guide structure for guiding second pieces that were separated from first pieces into a columnar support section. The motor unit, connecting sections and guide structure are integrated with the cylindrical body. The motor unit is housed inside the cylindrical body, and an output shaft of the motor unit is connected to one of the side frames. The connecting sections are fixed to the outer circumferential surface of the cylindrical body. The guide structure is an annular body provided on the outer circumferential surface of the cylindrical body.

A robot arm mechanism is capable of preventing a first piece string from colliding with a support column inner wall in the robot arm mechanism having a linear extension and retraction joint. The robot arm mechanism includes a plurality of first pieces that are connected in a string shape and a plurality of second pieces that are connected in a string shape, a feed mechanism section that supports the first and second strings movably forward and backward, a storage section in a square cylinder shape that stores the first pieces and the second pieces, and a guide that guides reciprocating movement of the first pieces between the feed mechanism section and the storage section from outside of the first pieces. The guide has a plurality of guide pieces that are connected bendably in mutual front and rear end surfaces to deform in accordance with rising and lowering movement of a rising and lowering rotation joint, and the guide hangs into the storage section from a tip position where the guide is fixed to the feed mechanism section.

An apparatus for advancement along a predetermined curved trajectory, comprising: a conduit having a conduit distal end; an elongated member having a main axis, at least partially extending within said conduit and movable therein along its length, said elongated member comprising a segmented assembly formed of a plurality of segments hingedly connected with each other, each having an orientation axis perpendicular to the main axis; and a deflecting member extending along said main axis so as to have a first state with a first extension along at least a part of the segmented assembly including its most distal segment, and a second state with a second extension along said part of the segmented assembly, the second extension exceeding the first extension.

It is provided a chain link for a link chain which is flexible per se and in which chain links connected to each other are movable in relation to each other and can be locked to each other such that the link chain which is flexible per se can be stiffened by locking the chain links to each other. The chain link has at least a first connection segment for the connection to a first chain link and a further second connection segment for the connection to a second chain link. The chain link has a carrier having the first connection segment and has an adjustment part having the second connection segment, said adjustment part being supported in an adjustable manner relative to the carrier.

A rigid drive chain comprises a plurality of links connected end-to-end. The links have a block end including a pair of receptacles, a driving face and a driven face. The links have a connector end including a tongue. The block end and connector end are one-piece members that include a plurality of gear teeth along one side of both the block end and connector end. A plurality of protrusions or pins connect the tongues to the receptacles. The links are adapted to be pivoted by a driving gear between a driving orientation of the links with the driving face engaging the driven face of an adjacent link in a forward direction.

An aircraft actuation system is disclosed that includes a pair of cylinders, a piston movably disposed in each cylinder, and a roller train that extends between the pistons in the two cylinders. A portion of the roller train is disposed beyond the cylinders to engage a pinion. Movement of the pistons in the two cylinders in opposite directions produces a corresponding movement of the roller train to in turn rotate the pinion. The roller train may be maintained in compression between its two ends by fluid pressure exerted on a common face of each of the pistons in the two cylinders. The cylinders may be disposed in non-colinear relation, including in parallel relation to one another. A guide may be used to maintain rollers of the roller train in a proper orientation for entry into a space between an outer race and the pinion.

Thrust chain device, includes a thrust chain with a straight portion along an axis and a curved portion, and links hinged on shafts, a chain guide, a driving sprocket with chain interlocking teeth, the sprocket being in contact with the chain via contact surfaces in the shape of an involute of a circle, the contact surfaces belonging to the teeth, a tooth engaging with the chain while defining a line of action having an angle with the shaft of the straight portion of between ?10? and 10?, the sprocket in contact with the straight portion and not the curved and is mounted such that it can rotate on a shaft on the side of the chain opposite the curved portion's center of curvature, the contact surfaces including a convex front surface directed towards the straight portion and a rear surface directed towards the curved portion when the tooth is interlocking.

A thrust chain device that induces an open thrust chain with a thrust portion and a housing portion, a thrust chain guide on a thrust portion of the thrust chain, a driving sprocket provided with teeth interlocking with the thrust chain, and a storage space of the housing portion, is provided. The storage space is parallel to the thrust portion and located opposite the thrust portion, the driving sprocket interlocks bilaterally with the thrust chain in a symmetric manner on the side of the thrust portion and on the side of the housing portion, the chain includes a connection portion between the thrust portion and the housing portion, arranged at a distance from the sprocket, the driving sprocket is in contact with the thrust chain by surfaces in the shape of an involute of a circle, the surfaces belonging to the teeth, where one tooth meshes with the chain while defining a line of action having an angle with the thrust portion between 10 and 10, and the guide includes contact surfaces in synthetic material.

Disclosed is a tracked lifting platform for vehicles (14), comprising at least two tracks (16), wherein each track (16) engages at least at a respective end region of a lifting platform (18) for lifting and lowering the track (16) between a basic position (19) and a working position (21), wherein the lifting platform (18) comprises a push column (21) with multiple push members (23), which can be arranged one above the other so as to be resistant to pressure in the vertical direction.