A trolley conveyor. The trolley conveyor includes: a tubular rail track having a slotted opening at the top. A trolley chain installed to move in the rail track. A hanger is provided for suspending therebelow objects to be transported. The hanger includes a connector at the upper end thereof which extends downward to toward the center of the trolley chain. The trolley chain includes vertical and horizontal rollers in chain units, with vertical rollers in one chain unit and horizontal rollers in an adjacent chain unit. The chain units are pivotally connected for up and down and side to side motion within the track. While the trolley chain moves, the connector avoids contact with the ends of the slot in the track. Thus, the trolley conveyor prevents the generation of noise and foreign substances. Also, the trolley conveyor prevents transfer of dirt, oil, and debris to an object being transported.

The invention relates to an overhead conveying device (01) for integration in an assembly plant in order to transport vehicle components (02) by means of a conveying device (03) arranged on the overhead conveying device (01), said overhead conveying device having at least one supporting framework (04), wherein the supporting framework (04) has a length of more than 5 m and a width of more than 2 m, and wherein the conveying device (03) can be mounted at the supporting framework (04), and wherein the supporting framework (04) and the conveying device (03) form a stiff conveying layer, in or at which the vehicle components (02) can be transported from an input point to an output point, and wherein the overhead conveying device (01) is mounted in suspended fashion, with the help of bearing means (13), on the ceiling structure (10) of the assembly plant, and wherein the suspended mounting of the overhead conveying device (01) on the ceiling structure (10) of the assembly plant gives rise to the formation, between the underside of the supporting framework (04) and the upper side of the floor of the assembly plant, of a free space (18), which is suitable for component assembly and/or for component transport purposes and in which it is possible to walk and/or drive, wherein the supporting framework (04) comprises frame elements (05) with a closed frame cross-section, wherein the component plane spanned in each instance by the frame element (05) extends substantially vertically upwards, and wherein the surface normal of the component plane spanned in each instance by the frame element (05) points in the conveying direction.

The invention relates to an overhead conveying device (01) for integration in an assembly plant in order to transport vehicle components (02) by means of a conveying device (03) arranged on the overhead conveying device (01), said overhead conveying device having at least one supporting framework (04), wherein the supporting framework (04) has a length of more than 5 m and a width of more than 2 m, and wherein the conveying device (03) can be mounted at the supporting framework (04), and wherein the supporting framework (04) and the conveying device (03) form a stiff conveying layer, in or at which the vehicle components (02) can be transported from an input point to an output point, and wherein the overhead conveying device (01) is mounted in suspended fashion, with the help of bearing means (13), on the ceiling structure (10) of the assembly plant, and wherein the suspended mounting of the overhead conveying device (01) on the ceiling structure (10) of the assembly plant gives rise to the formation, between the underside of the supporting framework (04) and the upper side of the floor of the assembly plant, of a free space (18), which is suitable for component assembly and/or for component transport purposes and in which it is possible to walk and/or drive, wherein the supporting framework (04) comprises frame elements (05) with a closed frame cross-section, wherein the component plane spanned in each instance by the frame element (05) extends substantially vertically upwards, and wherein the surface normal of the component plane spanned in each instance by the frame element (05) points in the conveying direction.

The invention relates to an overhead conveying device for integration in an assembly plant in order to transport vehicle components by means of a conveying device arranged on the overhead conveying device that can be mounted at the supporting framework to form a stiff conveying layer. The overhead conveying device is mounted in suspended fashion on the ceiling structure of the assembly plant forming a free space for component assembly and in which it is possible to walk and/or drive. A fastening plane is disposed between the ceiling structure of the assembly plant and the supporting framework and is formed from criss-crossing flexurally stiff steel girders, wherein the steel girders are connected to one another in a load-transmitting fashion at the points of intersection, and wherein the criss-crossing steel girders form a grid of four-sided intermediate zones.

The invention relates to an overhead conveying device for integration in an assembly plant in order to transport vehicle components by means of a conveying device arranged on the overhead conveying device that can be mounted at the supporting framework to form a stiff conveying layer. The overhead conveying device is mounted in suspended fashion on the ceiling structure of the assembly plant forming a free space for component assembly and in which it is possible to walk and/or drive. A fastening plane is disposed between the ceiling structure of the assembly plant and the supporting framework and is formed from criss-crossing flexurally stiff steel girders, wherein the steel girders are connected to one another in a load-transmitting fashion at the points of intersection, and wherein the criss-crossing steel girders form a grid of four-sided intermediate zones.

An apparatus includes a cable track configured to be coupled to a moveable object and to be pushed and pulled by the movable object without buckling. The cable track is also configured to transport at least one signal or material to or from the moveable object. The cable track has a curved profile. A cross-section of the cable track showing a height, a width, and a thickness of the cable track can have a “(” shape. The cable track can be configured to be bent in order to create a “U” bend in the cable track, and the cable track can be configured to be pushed and pulled without buckling to change a location of the “U” bend along the cable track. The cable track can be configured to change shape repeatedly between a “J” shape and a “U” shape.

The invention relates to a transport carrier (2) and a transport carrier system for an overhead conveying device (1), in which the transport carrier comprises a universally applicable base body (30) and supporting body (40a, 40b) exchangeable by means of a connecting device (50), which supporting body (40a, 40b) in a first configuration is provided with a completely enclosed receiving opening for transporting transport bags, and in a second configuration is provided with a suspension hook for transporting an article suspended on a clothes hanger. The connecting device (50) comprises a profile groove (60) extending perpendicular to the longitudinal axis (51) and a profile projection (61) extending perpendicular to the longitudinal axis. The profile groove forms an undercut (62) and is provided with an insertion opening (63) on the end side in the direction of its longitudinal extension. The profile projection comprises a profile web (64) and a profile head (65) formed on the profile web so as to expand the cross section. Moreover, the invention relates to an overhead conveying device with such a transport carrier system and an unloading station for automatic unloading of transport bags suspended on transport carriers.

The invention relates to a transport carrier (2) and a transport carrier system for an overhead conveying device (1), in which the transport carrier comprises a universally applicable base body (30) and supporting body (40a, 40b) exchangeable by means of a connecting device (50), which supporting body (40a, 40b) in a first configuration is provided with a completely enclosed receiving opening for transporting transport bags, and in a second configuration is provided with a suspension hook for transporting an article suspended on a clothes hanger. The connecting device (50) comprises a profile groove (60) extending perpendicular to the longitudinal axis (51) and a profile projection (61) extending perpendicular to the longitudinal axis. The profile groove forms an undercut (62) and is provided with an insertion opening (63) on the end side in the direction of its longitudinal extension. The profile projection comprises a profile web (64) and a profile head (65) formed on the profile web so as to expand the cross section. Moreover, the invention relates to an overhead conveying device with such a transport carrier system and an unloading station for automatic unloading of transport bags suspended on transport carriers.

A system and method for reconditioning railcar side frames including an overhead conveyer system, a railcar side frame holder, where the side frame is secured in the side frame holder, where the side frame holder is movably engaged with the overhead conveyer. The side frame and side frame holder are moved along the conveyer to a plurality of stations to perform operations such as welding and grinding. The side frame holder enables the side frame to be rotated 360 degrees while secured in the side frame holder. The side frame holder includes a fixed side arm, a movable side arm, and a pair of frame guides.

A system and method for reconditioning railcar side frames including an overhead conveyer system, a railcar side frame holder, where the side frame is secured in the side frame holder, where the side frame holder is movably engaged with the overhead conveyer. The side frame and side frame holder are moved along the conveyer to a plurality of stations to perform operations such as welding and grinding. The side frame holder enables the side frame to be rotated 360 degrees while secured in the side frame holder. The side frame holder includes a fixed side arm, a movable side arm, and a pair of frame guides.