A hinge of a motor-vehicle mobile part includes a first and a second hinge element mounted articulated with respect to each other about a hinge axis. The second hinge element is articulated to the first hinge element by an articulation portion having two pins defining the hinge axis, and projecting in opposite directions from two sides of the second hinge element. The first hinge element and the second hinge element are obtained by an additive manufacturing technique in an already reciprocally articulated condition, with the pins mounted with clearance within respective articulation seats formed on two flanges of the first hinge element adjacent to the sides of the second hinge element. The hinge also includes two bushing-shaped members, each interposed between one of said two pins and the respective articulation seat.

Embodiments generally relate to hinge mechanisms. Many of the hinge mechanism embodiments may be used in foldable furniture. The foldable furniture may be a foldable seat or table. The hinge mechanism may include a central cylinder with a body defining a hinge axis. The central cylinder may have rotate channel(s) transverse to the hinge axis and locking channels extending axially from the rotate channel(s). Collar(s) may couple with the central cylinder and may include pin(s) that protrude inwardly into the rotate channel(s) and locking channel(s) of the central cylinder. In some embodiments, an intermediate cylinder may be disposed between the central cylinder and the collar(s). The intermediate cylinder may have slots corresponding to the rotate channel(s) of the central cylinder. When pin(s) and locking channel(s) are aligned, the central lock cylinder may move axially to lock the collars in a desired angular position (e.g., a deployed or folded configuration).

Embodiments generally relate to hinge mechanisms. Many of the hinge mechanism embodiments may be used in foldable furniture. The foldable furniture may be a foldable seat or table. The hinge mechanism may include a central cylinder with a body defining a hinge axis. The central cylinder may have rotate channel(s) transverse to the hinge axis and locking channels extending axially from the rotate channel(s). Collar(s) may couple with the central cylinder and may include pin(s) that protrude inwardly into the rotate channel(s) and locking channel(s) of the central cylinder. In some embodiments, an intermediate cylinder may be disposed between the central cylinder and the collar(s). The intermediate cylinder may have slots corresponding to the rotate channel(s) of the central cylinder. When pin(s) and locking channel(s) are aligned, the central lock cylinder may move axially to lock the collars in a desired angular position (e.g., a deployed or folded configuration).

A coupling with distinct portions formed as a unitary structure and a fastener placed at one end of the coupling both provided to constrain assembly components and control their relative motion linearly along and rotationally around a longitudinal center axis is presented. The coupling portions are composed of complex concave polygon or circular shapes whose normal section is determined by the manner in which the adjacent assembly components are required, alternately, to move or not move. Specific geometric constraints for the various coupling portions must be met. Various coupling embodiments may result from differing fastening elements including screw, friction fit and bonded types being attached to the coupling body piece.

A joint arrangement between at least one first and second component, preferably sheetlike metal component, which has in each case a top and bottom side including a joint bushing which is received in a first opening of the first component, and a joint pin which is led through the joint bushing and which has a pin head, wherein that pin section which is situated opposite the pin head and which protrudes out of the joint bushing is fastenable to the second component preferably by means of a rivet connection. It is particularly advantageous for a stop disk element to be received between the pin head and the top side of the first component, and for the joint bushing to be formed as a collar bearing with a bushing section received in the first opening and a ring-shaped collar section adjoining said bushing section, wherein the ring-shaped collar section bears against the bottom side of the first component. The invention also relates to a prefabricated component and to a method for producing such a prefabricated component of a joint arrangement.

A hinge of a motor-vehicle mobile part includes a first and a second hinge element mounted articulated with respect to each other about a hinge axis. The second hinge element is articulated to the first hinge element by an articulation portion having two pins defining the hinge axis, and projecting in opposite directions from two sides of the second hinge element. The first hinge element and the second hinge element are obtained by an additive manufacturing technique in an already reciprocally articulated condition, with the pins mounted with clearance within respective articulation seats formed on two flanges of the first hinge element adjacent to the sides of the second hinge element. The hinge also includes two bushing-shaped members, each interposed between one of said two pins and the respective articulation seat.

A fixing structure of a door body shaft bushing includes a door body outer frame, a door body inner frame engaged with the door body outer frame, a door body shaft bushing arranged between the door body outer frame and the door body inner frame, and a plurality of reinforcing ribs arranged on two opposed surfaces of the door body outer frame and the door body inner frame when the door body outer frame and the door body inner frame are engaged with each other. The plurality of reinforcing ribs are respectively arranged in a staggered manner along a radial direction and an axial direction of shaft holes of the door body shaft bushing. The reinforcing ribs on the door body outer frame and/or the door body inner frame are in contact with the door body shaft bushing and clamp the door body shaft bushing.

A fixing structure of a door body shaft bushing includes a door body outer frame, a door body inner frame engaged with the door body outer frame, a door body shaft bushing arranged between the door body outer frame and the door body inner frame, and a plurality of reinforcing ribs arranged on two opposed surfaces of the door body outer frame and the door body inner frame when the door body outer frame and the door body inner frame are engaged with each other. The plurality of reinforcing ribs are respectively arranged in a staggered manner along a radial direction and an axial direction of shaft holes of the door body shaft bushing. The reinforcing ribs on the door body outer frame and/or the door body inner frame are in contact with the door body shaft bushing and clamp the door body shaft bushing.

A hinge assembly for an automobile that is adapted to attach a first component to a second component, wherein the first component pivots about an axis relative to the first component, comprises a base plate adapted to be mounted to the first component, a hinge support adapted to be mounted to the second component and adapted to support the base plate and first component on the second component, a hinge hook extending from the base plate and adapted to removably and rotatably engage the hinge support, and a locking mechanism mounted onto the hinge assembly and adapted to selectively lock the hinge hook in rotational engagement with the hinge support.

A joint arrangement between at least one first and second component, preferably sheetlike metal component, which has in each case a top and bottom side including a joint bushing which is received in a first opening of the first component, and a joint pin which is led through the joint bushing and which has a pin head, wherein that pin section which is situated opposite the pin head and which protrudes out of the joint bushing is fastenable to the second component preferably by means of a rivet connection. It is particularly advantageous for a stop disk element to be received between the pin head and the top side of the first component, and for the joint bushing to be formed as a collar bearing with a bushing section received in the first opening and a ring-shaped collar section adjoining said bushing section, wherein the ring-shaped collar section bears against the bottom side of the first component. The invention also relates to a prefabricated component and to a method for producing such a prefabricated component of a joint arrangement.