An arrangement for connecting a link (1) of a chassis to a wheel carrier (2) by way of a ball sleeve joint (3). The link (1) has an link eye (1a), the ball sleeve joint (3) has a ball sleeve (7), and the wheel carrier (2) has two bearing eyes (4, 5). A sensor is located on the link eye (1a) and a signal generator is located on the ball sleeve (7). The sensor and signal generator form an angle measuring device. The ball sleeve (7) is connected to the bearing eyes (4, 5) via a threaded pin (6). An anti-rotation unit (9, 10) is provided between the ball sleeve (7) and the wheel carrier (2) in order to fix a defined angular position of the ball sleeve (7) with respect to the wheel carrier (2).

A shouldering type photographing support is provided, comprising a main frame for coupling components, on which at least one connecting base for fixing a lens or camera is provided; a shouldering assembly connected to the main frame, wherein the shouldering assembly being provided on a side of one end of the main frame and not in the same axis as the connecting base, and the shouldering assembly being located in the left rear or right rear of the at least one connecting base; and a supporting assembly connected to the main frame, wherein the supporting assembly comprises a chest-supporting assembly, arm-supporting assembly, handheld assembly and supporting leg assembly, the shouldering assembly and the supporting assembly together provide supporting at multiple points for the main frame.

A rotary joint includes an inner joint element which has a spherically shaped inner convex joint face and an inner joint connection head protruding from the inner convex joint face; an outer joint element which has a spherically shaped inner concave joint face, a spherically shaped outer convex joint face and an outer joint connection head protruding from the outer convex joint face, wherein the inner joint element is held within the outer joint element such that the two joint elements can be rotated with respect to one another along the inner joint faces; and a joint bearing which has a spherically shaped outer concave joint face, wherein the outer joint element is held within the joint bearing such that the outer joint element can be rotated in the joint bearing along the outer joint faces.

A positioning locking mechanism of a rotational member comprising a rotational positioning member provided with a positioning groove; a rotational member pivotally connected with the rotational positioning member and rotating around the rotational positioning member; a positioning member arranged in the rotational member and movably meshed with the positioning groove; and a locking operation member arranged in the rotational member to control the motion of the positioning member. The positioning locking mechanism can effectively ensure that the positioning and locking of the rotational member cannot be invalid due to accident collision or component fatigue.

A post joint assembly and a method are provided. The assembly includes an upper cup member having a flat top wall, a tubular wall, a flange portion, and a threaded stud. The assembly further includes a lower cup member having a parabolic dish portion, a tubular portion, and a beaded edge portion. An outer surface of the parabolic dish portion is disposed against an inner surface of the flange portion of the upper cup member such that the threaded stud extends through a first hole in the lower cup member. The assembly further includes a tensioner cup having a second hole with the threaded stud extending therethrough. The assembly further includes a nut threadably coupled to the threaded stud such that the nut urges the tensioner cup against the lower cup member, and further urges the lower cup member against the upper cup member.

A ball joint (1), for a vehicle chassis, having a joint housing (3) and a joint body (4) having a spherical portion (5). The joint body (4) is held by the joint housing (3) at the spherical portion (5) of the joint body such that the joint body is mounted for articulation movement relative to the joint housing. A sensor assembly comprises a first sensor element (6) associated with the joint housing (4) and a second sensor element (7) associated with the joint body (4). The second sensor element interacts with the first sensor element (6) in order to sense the position of the joint body (4) relative to the joint housing (3). The ball joint is characterized in that the second sensor element (7) is arranged in the region of the spherical portion (5) of the joint body (4).

An assembling structure for a ceiling fan has a hanging rod, a hanging ball, and a hanging bracket. A top end of the hanging rod forms a bending edge. The hanging ball has a first hole and a supporting wall. The hanging rod is mounted through the first hole. The supporting wall has a supporting platform abutting a bottom surface of the bending edge. The hanging bracket has a ball mounting segment and a ceiling mounting segment adapted to be mounted to a ceiling. The ball mounting segment has a hanging hole. A diameter of the hanging hole is smaller than a diameter of the hanging ball. The hanging ball abuts downward a periphery of the hanging hole. The hanging rod is mounted through the hanging hole. With a large contact area between the hanging rod and the hanging ball, the structural strength is high.

A universal joint includes a driving portion and a joint head. The driving portion includes a ball nest and a polygonal column disposed within the ball nest. The joint head includes a working end portion and a ball head portion, and the ball head portion is rotatably and swingably disposed within the ball nest. A shaped of the ball head portion corresponds to a shaped of the ball nest, and the polygonal column is co-rotatable with the ball head portion. The ball head portion including a polygonal groove, and the polygonal column is inserted within the polygonal groove.

A method of determining an amount of wear in a spherical working surface of a bearing ring of a spherical plain bearing, the method including providing a reference groove of predetermined depth in an unworn working surface, using the reference groove and axial end faces of the bearing ring as reference surfaces for centering and aligning a measuring tool. The tool having a first surface, and a protrusion that extends from the first surface in radial direction and is adapted to fit into the reference groove and two or more radial openings that extend from a second surface of the tool. Determining the amount of wear by measuring the radial distance to the spherical working surface through each of the radial openings and comparing the measured value with a reference value measured using the tool for an unworn working surface comprising a reference groove of the same predetermined depth.

An adjustment unit for an indirect vision system is indicated, which comprises a first and a second component connected to a support structure of an indirect vision system by as little connecting elements as possible. The interface of the adjustment unit to the support structure is to be able to withstand robust mechanical requirements in a small installation space. Due to the second component including a pressure distribution element which extends transversely to a longitudinal direction of the main connecting member, and due to the fact that pressure is applied to the pressure distribution element by the main connecting element, the forces introduced and centrally acting on the pressure distribution element and thus on the second component are equally distributed in a direction transverse to the main connecting element. Traction with the support structure therefore is no longer performed centrally, but spreaded over a transverse extension of the second component. As a result, dimensional changes due to aging—creep behavior of plastics—can be compensated and distortion of the individual components is reduced.