A track hanger (100) includes a hook (103) and an extension (104), a base member (102), and a key (403). The key is detachable from the hook, and the base member is detachable from the extension. The key can include a first major surface (401) and a second major surface (402). The first major surface can define one or more barbs (404) that facilitate one-way insertion of the key into a track (106).

A system for suspension of a curtain device has at least one curtain guide track and at least one curtain that is suspended on a plurality of suspension units with a guide element for guiding a suspension unit along the curtain guide track. The curtain guide track and the guide element provide a bearing surface. The system further has a silencing material provided on the bearing surface.

A system for suspension of a curtain device has at least one curtain guide track and at least one curtain that is suspended on a plurality of suspension units with a guide element for guiding a suspension unit along the curtain guide track. The curtain guide track and the guide element provide a bearing surface. The system further has a silencing material provided on the bearing surface.

A track hanger (100) includes a hook (103) and an extension (104), a base member (102), and a key (403). The key is detachable from the hook, and the base member is detachable from the extension. The key can include a first major surface (401) and a second major surface (402). The first major surface can define one or more barbs (404) that facilitate one-way insertion of the key into a track (106).

A refrigeration unit for transportation, a door curtain thereof and a refrigeration vehicle. The door curtain includes: a curtain body; and a track, wherein the curtain body is movably mounted on the track, and the track has a main section for guiding the curtain body to move into a door area so as to be thermally insulated from the outside, and an extension section for guiding the curtain body to move out of the door area. The door curtain is a movable door curtain that is movable relative to the door.

A refrigeration unit for transportation, a door curtain thereof and a refrigeration vehicle. The door curtain includes: a curtain body; and a track, wherein the curtain body is movably mounted on the track, and the track has a main section for guiding the curtain body to move into a door area so as to be thermally insulated from the outside, and an extension section for guiding the curtain body to move out of the door area. The door curtain is a movable door curtain that is movable relative to the door.

A coupler system for connecting elongate, horizontally disposed rods to vertical supports includes a top-cap component for attaching to the top of a vertical support, and including a body with plural cavities formed therein, and at least one ball-cap component for attaching to an end of a rod, and including a ball region that is constructed to fit within one of the plural cavities of the top-cap component. The body may be formed with four of the plural cavities, with each of them having beveled edges. The ball-cap components may include a ball region, a neck region, and an angled region located adjacent the neck region and away from the ball region. The top-cap and ball-cap components may include insertion regions with opposing sets of ribs. The coupler system may further include a cover component, and the body may be formed with a central hole for receiving a fastener that secures the cover component to the top-cap component.

A coupler system for connecting elongate, horizontally disposed rods to vertical supports includes a top-cap component for attaching to the top of a vertical support, and including a body with plural cavities formed therein, and at least one ball-cap component for attaching to an end of a rod, and including a ball region that is constructed to fit within one of the plural cavities of the top-cap component. The body may be formed with four of the plural cavities, with each of them having beveled edges. The ball-cap components may include a ball region, a neck region, and an angled region located adjacent the neck region and away from the ball region. The top-cap and ball-cap components may include insertion regions with opposing sets of ribs. The coupler system may further include a cover component, and the body may be formed with a central hole for receiving a fastener that secures the cover component to the top-cap component.

A valance system for a window covering that can be folded and placed within the same shipping box as a wall bracket, top bracket and track sections. The valance extends a length between opposing ends and includes a clip feature that extends out from its rearward side. The clip feature is generally C-shaped or U-shaped when viewed from the side and includes a plurality of friction members in its exterior surface. The valance is covered with a covering material. An end cap having a hinge area that facilitates bending of the end cap is connected to the ends of the valance by connection of a tongue of the end cap to a slot of the valance. The clip feature is sized and shaped to frictionally fit within and be installed within a socket of a top bracket without any tools.

A valance system for a window covering that can be folded and placed within the same shipping box as a wall bracket, top bracket and track sections. The valance extends a length between opposing ends and includes a clip feature that extends out from its rearward side. The clip feature is generally C-shaped or U-shaped when viewed from the side and includes a plurality of friction members in its exterior surface. The valance is covered with a covering material. An end cap having a hinge area that facilitates bending of the end cap is connected to the ends of the valance by connection of a tongue of the end cap to a slot of the valance. The clip feature is sized and shaped to frictionally fit within and be installed within a socket of a top bracket without any tools.