A folding device for folding or disassembling rigid objects is provided with engaged toothed rows on opposing surfaces of two connecting plates. Opposite surfaces of protruded teeth of the toothed rows are provided with toothed grooves meshing with each other. When a locking mechanism perpendicular to a direction of the toothed rows is locked, the two connecting plates are driven by the locking mechanism to move toward each other in opposite directions along a pulling rod, so that the toothed grooves on the toothed rows tightly engage with one another, and the two connecting plates are pressed tightly and fixedly connected. When the folding device is in a connected state, meshing surfaces of the two connecting plates tightly mesh with each other through the corresponding toothed grooves, so that the two connected parts are combined together to form a whole rigid combination.

The invention is a Clamp system that is able to rotate and swivel on a base allowing it to self-align itself to the part being secured. When the clamp is tightened to the part it is securing, the base, clamp and part all become rigid and unable to swivel or rotate.

Example embodiments relate to tiltable luminaire joints. One example tiltable joint for a luminaire includes a first joint portion that includes a joint member provided with an outer cylindrical surface section having an axis and opposing bearings aligned with said axis. The outer cylindrical surface section being provided with a first plurality of interengaging surfaces. The tiltable joint also includes a second joint portion that includes a joint housing provided with a pair of axially-aligned receiving surfaces, and an inner cylindrical surface provided with a second plurality of interengaging surfaces configured to interengage the first plurality of interengaging surface. The joint member of the first joint portion is configured for being housed within the joint housing of the second joint portion. Further, the tiltable joint includes first and second shaft portions that extend in alignment with the pair of axially-aligned bearings. Additionally, the tiltable joint includes a fixation means.

A system includes a base, and an actuator having a first end and a second end. The system also includes a shaft configured to rotate relative to the base, and a drive link fixed to the shaft. The system further includes a support arm. A first end of the support arm being fixed to the shaft such that rotation of the shaft causes commensurate rotation of the support arm. The system also includes a timing link having a first end pivotably connected to the base and a second end opposite the first end. Additionally, the system includes a mount coupled to the second end of the timing link. The mount is configured to maintain a substantially constant orientation relative to the base as the support arm transitions between a raised position and a lowered position.

A system includes a base, and an actuator having a first end and a second end. The system also includes a shaft configured to rotate relative to the base, and a drive link fixed to the shaft. The system further includes a support arm. A first end of the support arm being fixed to the shaft such that rotation of the shaft causes commensurate rotation of the support arm. The system also includes a timing link having a first end pivotably connected to the base and a second end opposite the first end. Additionally, the system includes a mount coupled to the second end of the timing link. The mount is configured to maintain a substantially constant orientation relative to the base as the support arm transitions between a raised position and a lowered position.

The invention relates to a ball joint (10) for a wiper system, comprising a ball shell (12), a ball head (14) within the ball shell (12), a hinged rod (16) into which the ball shell (12) is inserted, and a securing means (18), wherein the securing means (18) engages around the hinged rod (16), in order to reduce an opening (20) in the ball shell (12) to a blocking distance (d), such that the ball head (15) can be removed from the ball shell (12). The invention further relates to a method for assembling the ball joint (10).

The invention relates to a ball joint (10) for a wiper system, comprising a ball shell (12), a ball head (14) within the ball shell (12), a hinged rod (16) into which the ball shell (12) is inserted, and a securing means (18), wherein the securing means (18) engages around the hinged rod (16), in order to reduce an opening (20) in the ball shell (12) to a blocking distance (d), such that the ball head (15) can be removed from the ball shell (12). The invention further relates to a method for assembling the ball joint (10).

A motion control and lock mechanism for wooden furniture such as a climbing triangle is provided. The lock mechanism provides secure stop against further motion and holds the furniture in the open or closed position. The lock mechanism is easily fabricated with a CNC router while cutting plywood furniture panels.

A rotation joint structure includes a fixed joint, a movable joint, a first limit member, and a second limit member. The fixed base has a locking groove. The movable joint is pivotally connected with the fixed joint. The movable joint has a first slideway and a second slideway connected to each other. The first limit member is movably mounted in the first slideway. The second limit member is movably mounted in the second slideway. When the second limit member is locked in the locking groove, and the first limit member stops the second limit member, the movable joint is locked and cannot be rotated. Thus, the movable joint is disposed at a two-stage locking state.

A rotation joint structure includes a fixed joint, a movable joint, a first limit member, and a second limit member. The fixed base has a locking groove. The movable joint is pivotally connected with the fixed joint. The movable joint has a first slideway and a second slideway connected to each other. The first limit member is movably mounted in the first slideway. The second limit member is movably mounted in the second slideway. When the second limit member is locked in the locking groove, and the first limit member stops the second limit member, the movable joint is locked and cannot be rotated. Thus, the movable joint is disposed at a two-stage locking state.