An end effector device includes a housing, a cable, and a winding mechanism. The cable includes at least one of lines that include a power supply line and a signal line. The winding mechanism is located inside the housing and configured to wind the cable. The winding mechanism includes a case, a reel, and a spiral spring. The reel is supported in the case and allowed to rotate and wind the cable. The spiral spring urges the reel in a retrieval direction of the cable pulled out of the reel.

An end effector device includes a housing, a cable, and a winding mechanism. The cable includes at least one of lines that include a power supply line and a signal line. The winding mechanism is located inside the housing and configured to wind the cable. The winding mechanism includes a case, a reel, and a spiral spring. The reel is supported in the case and allowed to rotate and wind the cable. The spiral spring urges the reel in a retrieval direction of the cable pulled out of the reel.

A self-retracting device includes a housing assembly having a first housing cover removably connectable to a second housing cover. The self-retracting device further includes a rotatable hub received within an interior of the housing assembly and having a line associated therewith, and retraction member received within an interior of the housing assembly between the rotatable hub and the first housing cover. The self-retracting device further includes an axle having a first end fixedly but removably connected to the first housing cover, a body extending through the retraction member and the rotatable hub, and a second end in engagement with at least a portion of the rotatable hub.

The housing of a lock assembly for securing a wheeled vehicle contains a cable which is wound around a cable reel within the housing. The cable reel rotates around a reel axis and has two ends. The first end of the cable is connected to the cable reel while the second end of the cable has a locking feature. A lock core has a receptacle configured to receive the locking feature at the end of the cable. An axis of the core is substantially parallel to the reel axis.

A self-exercise device that provides resistance to tugging, and is operable to intermittently change the resistance so as to mimic an actual tug-of-war game. The device includes ball gallery and ratchet structures that cooperate to provide additional intermittent resistance to provide action to the device that mimics an actual tug-of-war experience wherein the opposing resistance is randomly changing.

A retractable leash device (10, 53) for rolling up and unrolling a leash (13), especially for leading an animal, includes a leash roller (22) mounted rotatably on a carrier and a resetting device to reset the leash into a rolled-up position, in which the leash is wound up onto a leash roller. A blocking feature blocks the unrolling of the leash. A transmission is coupled to the leash roller and brings about blocking when a predetermined leash length is unrolled from leash roller. A simple configuration with high operating reliability and low wear is provided with the transmission having a first transmission element arranged rotatably on the carrier and a second transmission element arranged nonrotatably on the carrier. The first transmission element and the second transmission element have an outer circumference and an inner circumference associated with one another, which mesh with one another at least in an active state.

A retractable leash device (10, 53) for rolling up and unrolling a leash (13), especially for leading an animal, includes a leash roller (22) mounted rotatably on a carrier and a resetting device to reset the leash into a rolled-up position, in which the leash is wound up onto a leash roller. A blocking feature blocks the unrolling of the leash. A transmission is coupled to the leash roller and brings about blocking when a predetermined leash length is unrolled from leash roller. A simple configuration with high operating reliability and low wear is provided with the transmission having a first transmission element arranged rotatably on the carrier and a second transmission element arranged nonrotatably on the carrier. The first transmission element and the second transmission element have an outer circumference and an inner circumference associated with one another, which mesh with one another at least in an active state.

A retractable pet traction rope is provided. The retractable pet traction rope includes a leash, whose two ends are respectively a pet connection end for connecting a pet and a holding end for a tractor to hold for control, wherein the retractable pet traction rope further includes an elastic leash winding device, into which the leash is wound, with both ends of the leash respectively extending out of the elastic leash winding device. The retractable pet traction rope has the advantage of quick retractable speed, high structural strength, small body size, and convenient carriage.

A retractable pet traction rope is provided. The retractable pet traction rope includes a leash, whose two ends are respectively a pet connection end for connecting a pet and a holding end for a tractor to hold for control, wherein the retractable pet traction rope further includes an elastic leash winding device, into which the leash is wound, with both ends of the leash respectively extending out of the elastic leash winding device. The retractable pet traction rope has the advantage of quick retractable speed, high structural strength, small body size, and convenient carriage.

A smart cord reel cable including at least one sensor for measuring cord or cord reel usage, a memory for receiving sensor input to create usage records, and a processor for analyzing the usage records to provide information for maintenance status indication and/or usage analytics.