A trunk cover for a vehicle includes an upper panel covering one portion of a loading space part formed in a vehicle, a lower panel disposed continuously with the upper panel and covering the other portion of the loading space part; a main body connection part connecting the upper panel to a main body of the vehicle, and a panel connection part connecting the upper panel and the lower panel so that a length formed by the upper panel and the lower panel is variable when opening the loading space part.

A rotary valve that controls a flow rate at which working oil is supplied to and discharged from a hydraulic cylinder that causes a wing to rotate about a rotary shaft includes a rotor that rotates as the wing rotates about the rotary shaft, and a first control flow passage and a second control flow passage formed in the rotor to control the flow rate at which the working fluid is supplied to and discharged from the hydraulic cylinder, wherein the first control flow passage and the second control flow passage respectively vary a resistance exerted on a flow of the working fluid passing therethrough as the rotor rotates.

A frame assembly supporting an overhead door has a horizontal header connected to upright columns or posts with splice assemblies. Fasteners mounted on the columns cooperate with retainers on the splice assemblies to position and connect the columns to the header. Hinge assemblies pivotally mount the door on the header for movement between open and closed positions.

A frame assembly supporting an overhead door has a horizontal header connected to upright columns or posts with splice assemblies. Fasteners mounted on the columns cooperate with retainers on the splice assemblies to position and connect the columns to the header. Hinge assemblies pivotally mount the door on the header for movement between open and closed positions.

The invention discloses a folding and unfolding mechanism. The folding and unfolding mechanism is mounted between an upper panel and a lower panel which are hinged, and is used for folding and unfolding the upper panel and the lower panel, and for overturning for 0-180 degrees between the upper panel and the lower panel; wherein the folding and unfolding mechanism comprises a four-connecting-rod assembly, a pushrod assembly and an auxiliary connecting rod assembly; the auxiliary connecting rod assembly comprises a first auxiliary connecting rod and a second auxiliary connecting rod, wherein one end of the first auxiliary connecting rod is hinged to one end of the second auxiliary connecting rod; the other end of the first auxiliary connecting rod is hinged to the lower panel; and the other end of the second auxiliary connecting rod is fixedly connected with a fourth connecting rod. The invention provides a mechanism, mounted between an upper panel and a lower panel which are hinged together, for folding and unfolding the upper panel and the lower panel, and for overturning for 0-180 degrees between the upper panel and the lower panel.

A frame assembly supporting an overhead door has a horizontal header connected to upright columns or posts with splice assemblies. Fasteners mounted on the columns cooperate with retainers on the splice assemblies to position and connect the columns to the header. Hinge assemblies pivotally mount the door on the header for movement between open and closed positions.

A frame assembly supporting an overhead door has a horizontal header connected to upright columns or posts with splice assemblies. Fasteners mounted on the columns cooperate with retainers on the splice assemblies to position and connect the columns to the header. Hinge assemblies pivotally mount the door on the header for movement between open and closed positions.

Automatic drive systems for movable partitions may comprise a floating jamb configured to attach to panels of a movable partition and glide within a pocket. A motor may be configured to extend the movable partition. The motor may be configured for mounting in the pocket on a back side of the floating jamb opposing a front side of the floating jamb to which the panels of the movable partition are configured to attach. An electronics enclosure may be sized and configured to contain electronics to connect to the motor. The electronics enclosure may be configured for positioning in the pocket on the backside in a location offset from the motor. A depth of the electronics enclosure, as measured in a direction in which the floating jamb is mounted to glide, may be less than or equal to a depth of the motor, as measured in the same direction.

Automatic drive systems for movable partitions may comprise a floating jamb configured to attach to panels of a movable partition and glide within a pocket. A motor may be configured to extend the movable partition. The motor may be configured for mounting in the pocket on a back side of the floating jamb opposing a front side of the floating jamb to which the panels of the movable partition are configured to attach. An electronics enclosure may be sized and configured to contain electronics to connect to the motor. The electronics enclosure may be configured for positioning in the pocket on the backside in a location offset from the motor. A depth of the electronics enclosure, as measured in a direction in which the floating jamb is mounted to glide, may be less than or equal to a depth of the motor, as measured in the same direction.

The invention discloses a folding and unfolding mechanism. The folding and unfolding mechanism is mounted between an upper panel and a lower panel which are hinged, and is used for folding and unfolding the upper panel and the lower panel, and for overturning for 0-180 degrees between the upper panel and the lower panel; wherein the folding and unfolding mechanism comprises a four-connecting-rod assembly, a pushrod assembly and an auxiliary connecting rod assembly; the auxiliary connecting rod assembly comprises a first auxiliary connecting rod and a second auxiliary connecting rod, wherein one end of the first auxiliary connecting rod is hinged to one end of the second auxiliary connecting rod; the other end of the first auxiliary connecting rod is hinged to the lower panel; and the other end of the second auxiliary connecting rod is fixedly connected with a fourth connecting rod. The invention provides a mechanism, mounted between an upper panel and a lower panel which are hinged together, for folding and unfolding the upper panel and the lower panel, and for overturning for 0-180 degrees between the upper panel and the lower panel.