A cable guide device for guiding at least one supply cable along a robot arm includes a supply cable and a spring system configured to automatically return the supply cable from an extracted state into a retracted state. The device, has a front end section in the direction of extraction of the supply cable, and a rear end section in the direction of extraction of the supply cable. The device further includes a spring system seat permanently connected to the supply cable and on which the rear end section of the spring system is mounted, an abutment seat on which the front end section of the spring system is mounted, a fastening device configured to fasten the cable guide device to a link of the robot arm, and an adjustment device carrying the abutment seat and configured to mount the abutment seat for movement with respect to the fastening device.

Embodiments of a ticket burster employ a dividing wall that is movable between different positions to facilitate dispensing tickets of different sizes, and a sensor that detects and communicates the position of the dividing wall to a controller. The controller communicates with feed motors to selectively operate feed drive rollers independently or in unison depending upon the detected position of the dividing wall.

Provided is a conveying apparatus, including: a conveying roller that conveys a recording medium; a first helical gear that rotates integrally with the conveying roller; a gear unit that engages with the first helical gear and generates a thrust force to the conveying roller. The gear unit includes a second helical gear and a third helical gear, and a thrust force that the conveying roller receives from the second helical gear acts in an opposite direction of a thrust force that the conveying roller receives from the third helical gear.

Provided is a conveying apparatus, including: a conveying roller that conveys a recording medium; a first helical gear that rotates integrally with the conveying roller; a gear unit that engages with the first helical gear and generates a thrust force to the conveying roller. The gear unit includes a second helical gear and a third helical gear, and a thrust force that the conveying roller receives from the second helical gear acts in an opposite direction of a thrust force that the conveying roller receives from the third helical gear.

A cable winding apparatus mounted on an arm of an excavator. The cable winding apparatus comprises a housing, a hydraulic motor disposed within the housing where a portion of the hydraulic motor extends through the second wall of the housing, a drive shaft extending through the housing that is connected to the motor, and a collapsible power reel. The collapsible power reel comprises a plurality of segments movably coupled to the collapsible power reel and extending radially from the collapsible power reel. The plurality of segments can engage a cable and enable the cable to be wound around the collapsible power reel as the hydraulic motor rotates the collapsible power reel. The plurality of segments are configured to collapse in an axial direction, thereby enabling the wound cable to be easily removed from the apparatus.

A cable winding apparatus mounted on an arm of an excavator. The cable winding apparatus comprises a housing, a hydraulic motor disposed within the housing where a portion of the hydraulic motor extends through the second wall of the housing, a drive shaft extending through the housing that is connected to the motor, and a collapsible power reel. The collapsible power reel comprises a plurality of segments movably coupled to the collapsible power reel and extending radially from the collapsible power reel. The plurality of segments can engage a cable and enable the cable to be wound around the collapsible power reel as the hydraulic motor rotates the collapsible power reel. The plurality of segments are configured to collapse in an axial direction, thereby enabling the wound cable to be easily removed from the apparatus.

A pipe puller system and methods of pipe extraction are shown. In one example a pipe to be replaced is pulled by attaching a pulling force to multiple locations along a length of the pipe. In one example pulling forces can be varied between different attachment locations to better control or eliminate tearing of the pipe. In one example, a pipe loosening device may be used prior to pulling the pipe from the ground.

A pipe puller system and methods of pipe extraction are shown. In one example a pipe to be replaced is pulled by attaching a pulling force to multiple locations along a length of the pipe. In one example pulling forces can be varied between different attachment locations to better control or eliminate tearing of the pipe. In one example, a pipe loosening device may be used prior to pulling the pipe from the ground.

A detachable cord rolling device includes a cord rolling unit and an auxiliary driving unit. The cord rolling unit has a first base where first and second torsion spring gears engaged with each other are disposed. A first torsion spring is disposed between the first and second torsion spring gears. The auxiliary driving unit has a second base where third and fourth torsion spring gears engaged with each other are disposed. The second base is detachably disposed on the first base of the cord rolling unit. The third torsion spring gear and the first torsion spring gear of the cord rolling unit are connected by a transmission shaft, thereby rotatable synchronously. As a result, the cord rolling unit of the invention can be used individually, or combined with the auxiliary driving unit by the transmission shaft for increasing the rolling force of the cord rolling unit.

A detachable cord rolling device includes a cord rolling unit and an auxiliary driving unit. The cord rolling unit has a first base where first and second torsion spring gears engaged with each other are disposed. A first torsion spring is disposed between the first and second torsion spring gears. The auxiliary driving unit has a second base where third and fourth torsion spring gears engaged with each other are disposed. The second base is detachably disposed on the first base of the cord rolling unit. The third torsion spring gear and the first torsion spring gear of the cord rolling unit are connected by a transmission shaft, thereby rotatable synchronously. As a result, the cord rolling unit of the invention can be used individually, or combined with the auxiliary driving unit by the transmission shaft for increasing the rolling force of the cord rolling unit.