A block, towing system, and a method for towing rail cars is provided. The block includes a first channel, a second channel, a third channel and a fourth channel. The first channel is located on a first side of the block. The second channel is located adjacent to the first channel on the first side of the block. The third channel is located on an opposite side of the block from the first channel. The fourth channel is located adjacent to the third channel on the opposite side of the block from the second channel.

A block, towing system, and a method for towing rail cars is provided. The block includes a first channel, a second channel, a third channel and a fourth channel. The first channel is located on a first side of the block. The second channel is located adjacent to the first channel on the first side of the block. The third channel is located on an opposite side of the block from the first channel. The fourth channel is located adjacent to the third channel on the opposite side of the block from the second channel.

A coupler arrangement for a rail vehicle comprises a coupler head and an uncoupling device having at least one handle which is manually swivelable about an axis of rotation (A) in a swivel direction (S) from a first position, in which the coupler head is in a state in which it is coupled to or ready to couple with the coupler head of another coupler arrangement, into a second position, in which the coupler head is in an uncoupled state. In one embodiment the handle comprises a handle arm which is oriented horizontally when the handle is either in the first or in the second position. In another embodiment the handle is mechanically lockable by moving, preferably shifting or tilting, at least a portion of the handle in a locking direction from the second position into a third position, wherein the locking direction differs from the swivel direction (S). In an even further embodiment, two of those handles are provided, preferably on opposite sides relative to the coupler head, wherein preferably swivelling of one of the two handles causes a corresponding swivelling of the respective other handle.

A coupler arrangement for a rail vehicle comprises a coupler head and an uncoupling device having at least one handle which is manually swivelable about an axis of rotation (A) in a swivel direction (S) from a first position, in which the coupler head is in a state in which it is coupled to or ready to couple with the coupler head of another coupler arrangement, into a second position, in which the coupler head is in an uncoupled state. In one embodiment the handle comprises a handle arm which is oriented horizontally when the handle is either in the first or in the second position. In another embodiment the handle is mechanically lockable by moving, preferably shifting or tilting, at least a portion of the handle in a locking direction from the second position into a third position, wherein the locking direction differs from the swivel direction (S). In an even further embodiment, two of those handles are provided, preferably on opposite sides relative to the coupler head, wherein preferably swivelling of one of the two handles causes a corresponding swivelling of the respective other handle.

In an autonomous traveling unit, a toggle mechanism including a plurality of sliders is provided. In the plurality of sliders, cam followers are provided, respectively. Meanwhile, in a workpiece loading unit, a clamped portion is provided. As a result of the cam followers, which are displaced so as to separate away from each other, entering intersection portions of the clamped portion, the workpiece loading unit is restrained by the autonomous traveling unit.

A block, towing system, and a method for towing rail cars is provided. The block includes a first channel, a second channel, a third channel and a fourth channel. The first channel is located on a first side of the block. The second channel is located adjacent to the first channel on the first side of the block. The third channel is located on an opposite side of the block from the first channel. The fourth channel is located adjacent to the third channel on the opposite side of the block from the second channel.

A block, towing system, and a method for towing rail cars is provided. The block includes a first channel, a second channel, a third channel and a fourth channel. The first channel is located on a first side of the block. The second channel is located adjacent to the first channel on the first side of the block. The third channel is located on an opposite side of the block from the first channel. The fourth channel is located adjacent to the third channel on the opposite side of the block from the second channel.