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.

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.

A rotary arm restricts the rotation of a first sun gear or a second sun gear according to forward/reverse rotation drive of sheet discharge rollers. As a result, a rotating direction of a transmission gear coupled to the sheet discharge rollers is switched. If 1A denotes a pressure angle of gear teeth of a gear portion of the first sun gear and 2A denotes a pressure angle of gear teeth of a first planetary gear, a relationship of 2A+0.51A2A+1.5 is satisfied.

A rotary arm restricts the rotation of a first sun gear or a second sun gear according to forward/reverse rotation drive of sheet discharge rollers. As a result, a rotating direction of a transmission gear coupled to the sheet discharge rollers is switched. If 1A denotes a pressure angle of gear teeth of a gear portion of the first sun gear and 2A denotes a pressure angle of gear teeth of a first planetary gear, a relationship of 2A+0.51A2A+1.5 is satisfied.

A cassette push plate locking device capable of absorbing impact to the cassette push plate according to the present disclosure, includes a cassette push plate disposed in a cassette, a locking lever that is movable by switching of a cassette door; and a locking unit including a torque limiter that allows the cassette push plate to move over a predetermined force and prevents the cassette push plate from moving under the predetermined force.

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 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 power transmission mechanism including an operation unit, a drive source, and a gear train mechanism including a plurality of power transmission gears of which rotation centers are arranged in a staggered pattern as viewed from the axial direction. The gear train mechanism includes a first gear located most downstream in the power transmission direction, a second gear that engages with the first gear, and a dummy gear that does not have a function of transmitting power. The dummy gear engages with the first gear and has a rotation center arranged in a staggered pattern with respect to the first gear and the second gear as viewed from the axial direction.