An adjustable connection joint has a partially shaped spherical member attached to a first member to be adjusted with respect to a second member. A slidable base member slides in a bushing which is attached to the second member. A bolt extends through a washer that spreads a slotted end of the slidable base member against the bushing. Tightening the bolt pulls a locking member against an inside of the partially spherically shaped member and pulls it against a conical cavity on an end of the slidable member. Tightening the bolt concurrently locks the slidable member in the bushing and locks a position of the partially shaped cylindrical member in the conical cavity at the end of the slidable member.

Connection joint between a first member and a second member where said connection joint comprises: a. a first slidable base member, where said slidable base member in a first end has a first conically shaped cavity, and in a second end has a portion extending from the distal end towards the first end, where a plurality of slits are provided in said portion, where said first slidable base member between the first conically shaped cavity and said second end has a cylindrical cross-section orthogonal to a longitudinal direction of said first slidable base member, and where b. a washer having at least one conical section providing expansion means arranged at least partly inside said first slidable member in the vicinity of the slits adjacent the second end, where said conical section is able to urge the first slidable member's portion provided with slits outwards and expand beyond the circumference of the cylindrical section; c. a bushing arranged outside said first slidable member, such that the slidable member may slide relative to the bushing in an axial direction, and d. a first partly shaped spherical member (rod), having a spherical part with an inner and an outer surface, said spherical part's outer surface adapted to be at least partly inserted in the conically shaped cavity of the first slidable member, and said spherical parts inner surface being suitable to engage; e. a first locking member (bl) having an outer surface adapted to engage said inner surface of the first partly spherical member, and a threaded aperture, said threaded aperture is threadily engaged to; f. a threaded bolt, said bolt having a thread in one end engaging the thread of the locking member and a head section in the opposite engaging the washer, g. and where the first partly spherical member and the bushing or the washer comprises fastening means for fastening the first partly spherical member and the bushing or the washer to said first and second members.

In at least one illustrative embodiment, an adjustable joint comprises a housing, a pair of wedges arranged in the housing, and a threaded fastener engaged with at least one of the pair of wedges. The housing may include a first cavity that is sized to receive a spherical end of a shaft and a second cavity that is sized to receive a tube. The pair of wedges may be arranged between the first and the second cavities. The threaded fastener may be configured to (i) move the pair of wedges away from one another when rotated in a first direction and (ii) move the pair of wedges toward one another when rotated in a second direction opposite the first direction.

A slim type universal joint is used to transmit torque generated by an output/driving shaft and/or rotary motion on a rotation axis on a system of engine vehicles connected thereto into the output/driving shaft of a different axis and allows independent locking of the rotation axis. The slim type universal joint includes a locking hole, a central-lower part, a central-upper part, pin holes, an outer-lower part and an outer-upper part, a first short cap pin, a second short cap pin and a long cap pin.