A retractable leash with automatic locking and unlocking function including a housing, a spool with a cord wound therearound, a braking means, a cord opening, a stopping means and a biasing means. A second portion of the stopping means abuts against the cord in such a way that tensioning of the cord by an external force actuates the stopping means to overcome biasing force of the biasing means to rotate to the locking position, and untensioning of the cord by the external force returns the stopping means from the locking position to the unlocking position. The present invention automatically locks the leash when the dog rushes, thus improving safety of the leash.

A system for managing charging, the charging management system is provided. The system comprises a charging cord management device, a charging cord connector, a device, a first charging cord, and a second charging cord. The charging cord management device is configured with the second charging cord. The charging cord management device is configured to control the second charging cord and the charging cord connector in a direction of the earth gravitational field from a first altitude to a second altitude without user interaction and wherein the first altitude is different from the second altitude. The charging cord connector is configured to be in contact with an apparatus with a height above ground level.

A damping device of a window covering is provided, including a headrail, a covering material, and a driving device, wherein the driving device is located in the headrail to raise and extend the covering material. The damping device is provided in the headrail, and includes a metal member and a magnetic member, wherein at least a magnetic pole of the magnetic member faces the metal member. The metal member is located within a magnetic field of the magnetic member. Either one or both the metal member and the magnetic member is drivable by the driving device to make the metal member and the magnetic member move relative to each other. Whereby, the damping device is able to provide a desired damping effect at different temperature or after a long period use, such that the rotation of the metal member and the movement of the covering material are slowed down.

A web retractor includes a frame having spaced-apart side walls, a spool rotatably mounted between the side walls, a web having one end mounted to the spool, the spool rotatable in a web take-up direction to wrap the web onto the spool and in a web pay out direction to unwrap the web from the spool, and a web take-up prevention apparatus movably mounted to the frame and responsive actuation thereof to move relative to the frame to impart a resistance directly on the web sufficient to prevent the spool from rotating in the web take-up direction while also allowing the spool to rotate in the web pay out direction by pulling the web away from the retractor.

The present invention relates to an automatic winding device for a golf towel, which can hold a towel out of a case when a user pulls the towel and automatically wind the towel so that the towel is put into the case when the user pulls and releases the towel after using it, thereby providing user convenience.

A strap may be removably attachable to a container. The strap may include a retractor having an opening, a retraction spring and a brake. The strap may further include a strip of flexible material attached to the retraction spring and extending through the opening of the retractor. The strap may also include clips attaching the retractor and distal end of the flexible material to the container. The strip of flexible material may move from a fully retracted position, where the distal end of the strip of flexible material is nearest the retractor, relative to the entire length of the strip of flexible material, to an extended position where the distal end of the strip of flexible material is furthest from the retractor. The retraction spring may bias the strip of flexible material into/toward the fully retracted position.

A winding mechanism includes a housing, an inner cylinder and a wire. The housing is formed with an accommodating space therein. An inner surface of the housing is formed with an internal thread structure. The inner cylinder is disposed in the accommodating space and defines a central axis. An outer surface of the inner cylinder is formed with an external thread structure. The external thread structure is cooperated with the internal thread structure. The inner cylinder is capable of displacing along the central axis by rotating relative to the housing. The external thread structure includes at least two contact portions and at least two non-contact portions, and gaps are formed between the non-contact portions of the external thread structure and the internal thread structure. An end of the wire is connected to the inner cylinder and is wound along the external thread structure of the inner cylinder.

A retractable pet leash comprises a shell with opposite ends, a rolling disc contained in the shell, a rope wound in the rolling disc, a locking button and a locking member; the shell is provided with a mounting hole; the locking button includes a mounting seat, a pulling member and a resetting member; the mounting seat is pivoted inside the shell; the mounting seat has a main body and a sliding slot passing through the main body; the pulling member is arranged on the mounting seat, a bottom of the pulling member passes through the sliding slot to connect the resetting member; the locking member is pivoted inside the shell and has a pivoting seat, a pivoting part, a locking part and the pressing part; the locking part cooperates with adjacent teeth of the rolling disc, the pressing part cooperates with the resetting part.

A portable interface system including an interface device, in particular a sensor device, and a base part, wherein the base part includes an attachment area for the interface device and a retraction device, wherein the retraction device is attached to the interface device and is designed to move the interface device into a predefined holding position in the attachment area, wherein the interface device is detachably fixed without tools in the holding position in the attachment area.

A coating film transfer tool in which a rotational torque with the least variability may be generated without being affected by a surface state of a resilient body may include: a paying-out core having a coating film transfer tape wound thereon; and a rewinding core that rewinds the coating film transfer tape after use. The paying-out core and the rewinding core are interlocked via a power transmission mechanism in a case. The transmission mechanism generates a rotational torque by a frictional force on a sliding surface between components, by using a restoring force of a resilient body. The resilient body is configured to rotate integrally with a component A that comes into contact with one end of the resilient body and a component B that comes into contact with the other end.