An adjustable assembly for a bicycle includes a first support having an interior surface and a second support slidably positioned within at least a portion of the first support. One of the first support and the second support is adapted to attach to a first bicycle portion, and the other of the first support and the second support is adapted to attach to a second bicycle portion. Further, the second support comprises an expansion portion configured to be moved between an expanded position and a retracted position. The expansion portion is configured to engage the interior surface of the first support when the expansion portion is in an expanded position. In addition, the first support is configured to be selectively moved relative to the second support when the expansion portion is permitted to assume a retracted position.

A tube set device includes first and second tubes and a clamping assembly. The first tube partially extending from an opening into the second tube is telescopic relative to the second tube. The clamping assembly disposed at the opening of the second tube includes a quick-release tube-clamp and a safety lock unit. The quick-release tube-clamp includes a tightening body and a handle. The handle pivoted on the tightening body is able to be switched pivotally between released and locked states. The safety lock unit includes a first matching element disposed on one of the handle and the tightening body and a second matching element disposed on the other one. In the locked state, the first matching element is aligned with the second matching element, and the first and second matching elements are assembled with each other to fix the handle on the tightening body and maintain the locked state.

An adjustable assembly for a bicycle includes a first support having an interior surface and a second support slidably positioned within at least a portion of the first support. One of the first support and the second support is adapted to attach to a first bicycle portion, and the other of the first support and the second support is adapted to attach to a second bicycle portion. Further, the second support comprises an expansion portion configured to be moved between an expanded position and a retracted position. The expansion portion is configured to engage the interior surface of the first support when the expansion portion is in an expanded position. In addition, the first support is configured to be selectively moved relative to the second support when the expansion portion is permitted to assume a retracted position.

An adapter for a dielectric hot stick, the hot stick having a hook, the hook being movable along an axis of travel that includes a retracted position where the hook is within an axial passage in the hot stick, and an extended position where the hook is extended past a work end of the hot stick, the adapter comprising: a frame with a hot stick seat shaped to be mounted on the work end of the hot stick, the frame defining a lever passage positioned to at least partially align with the axial passage in use; and a lever assembly pivotally connected to the frame, the lever assembly having a first end with a connector for the hook and being at least partially within the lever passage, and the lever assembly having a second end defining or connected to a tool part to move the tool part relative to the frame to carry out a function when the hook moves along the axis of travel.

A locking device includes an operating lever, a base and a repulsion generating member, wherein the operating lever has a releasing position and a locking position relative to the base, and the repulsion generating member is arranged between the base and the operating lever and generates a repulsion force for application to the operating lever during movement from the releasing position to the locking position. When the operating lever does not completely reach the locking position due to abnormal operation, the repulsion generating member will cause the operating lever to return to the releasing position thereby provide an indication. The locking device can thus provide an indication when the locking operation does not reach the correct position, thereby avoiding user confusion and abnormal operation.

A passive locking mechanism for a telescoping structure includes a stud fixed to a first panel section, a lower pawl coupled to a second panel section, an upper pawl coupled to the second panel section operable to engage the lower pawl, and a lock wedge coupled to a third panel section. The lock wedge is operable to engage the upper and lower pawls. In a retracted position of the telescoping structure, the lower pawl is engaged with the lock wedge, such that the second panel section is locked in place relative to the third panel section, and the first panel section is free to move relative to the second panel section.

A telescopic tube having an adjusting device comprising an inner toothing angularly interrupted by a longitudinal recess and a male element having an outer toothing angularly interrupted by a second recess so as to axially slide along the longitudinal recess in a first predetermined angular position and selectively engage with the inner toothing in a second predetermined angular position different from the first predetermined angular position for rigidly connecting the bushing to the male element in axial direction.

A length-adjustable telescopic tube (1) has a longitudinal axis (L), an inner tube (2) and an outer tube (4). In one of the tubes (2, 4) a component (20) is arranged, which features first attachment structures (28a, 28b). The tube (2, 4) has second attachment structures. Furthermore, at least one plug-in element (50, 60, and 70) with third attachment structures (58, 68, and 78) is provided, which cooperate with the first (28a, 28b) and second attachment structures (48a, 48b) to form a form-locking connection with the component (20) in at least one direction along the longitudinal axis (L) or perpendicular to the longitudinal axis.

A locking device for mechanical pieces, particularly for pieces subjected to mechanical processing or similar, comprising at least one hollow body that forms a sliding seat, a movable stem that is accommodated slidingly partially within the sliding seat of the hollow body and radial expansion elements which are interposed between the hollow body and the movable stem, the radial expansion elements being adapted to mutually lock the hollow body and the movable stem, the movable stem protruding partially from the hollow body with the hollow body and the movable stem jointly associable, at their free ends, by way of elements for connection, respectively, to a mechanical piece to be processed or a fixed part of a machine with which the mechanical piece is to be processed.

An adjustable assembly for a bicycle includes a first support having an interior surface and a second support slidably positioned within at least a portion of the first support. One of the first support and the second support is adapted to attach to a first bicycle portion, and the other of the first support and the second support is adapted to attach to a second bicycle portion. Further, the second support comprises an expansion portion configured to be moved between an expanded position and a retracted position. The expansion portion is configured to engage the interior surface of the first support when the expansion portion is in an expanded position. In addition, the first support is configured to be selectively moved relative to the second support when the expansion portion is permitted to assume a retracted position.