A tonneau cover comprising: (a) a plurality of panels; (b) one or more hinges between each panel of the plurality of panels so that the plurality of panels are rotatably connected together, wherein some or all of the one or more hinges include: (i) a plurality of expansion links that are movably interconnected together, some of the plurality of expansion links including: (1) one or more expansion projections; (2) one or more pockets that receive all or a portion of the one or more expansion projections from an adjacent one of the plurality of expansion links; and (3) one or more expansion stops that restricts movement of the one or more expansion projections from the adjacent one of plurality of the expansion links that extend within the one or more pockets; wherein the one or more hinges rotate so that the one or more hinges form of angle of about 90 degrees or more and about 225 degrees or less.

A rotary shaft link assembly shield structure is connected between a first support and a second support of two articles. The rotary shaft link assembly structure has a rotary shaft assembly, at least one flexible shield plate and at least one synchronous rotational assembly. The rotary shaft assembly has multiple connection members. Each connection member is correspondingly formed with at least one hollow section. The synchronous rotational assembly passes through the hollow sections of the connection members to respectively connect with the first and second supports. The flexible shield plate also passes through the hollow sections of the respective connection members. A middle section of the flexible shield plate is bent in reverse direction and two sides of the flexible shield plate respectively shield two surfaces of the synchronous rotational assembly.

A tonneau cover comprising: (a) a plurality of panels; (b) one or more hinges located between and connecting each panel of the plurality of panels; and (c) one or more rotary locks located on a first side, a second side, or both sides of one or more of the one or more hinges, one of the plurality of panels, or both, the one or more rotary locks including: (i) one or more panel caps; and (ii) one or more rail locks that create a lock with the one or more panel caps when the tonneau cover is in a closed position so that the tonneau cover is prevented from being opened proximate to the one or more hinges.

A tonneau cover comprising: (a) a first panel and a second panel; (b) a hinge located between and connecting the first panel and the second panel; and (c) a cover extending over all or a portion of the first panel, the second panel, or both, and the hinge so that, when the first panel or the second panel rotates about the hinge, the cover forms a portion of the hinge and maintains the integrity of the hinge.

A tonneau cover comprising: (a) a plurality of panels; (b) one or more hinges between each panel of the plurality of panels so that the plurality of panels are rotatably connected together, wherein some or all of the one or more hinges include: (i) a plurality of expansion links that are movably interconnected together, some of the plurality of expansion links including: (1) one or more expansion projections; (2) one or more pockets that receive all or a portion of the one or more expansion projections from an adjacent one of the plurality of expansion links; and (3) one or more expansion stops that restricts movement of the one or more expansion projections from the adjacent one of plurality of the expansion links that extend within the one or more pockets; wherein the one or more hinges rotate so that the one or more hinges form of angle of about 90 degrees or more and about 225 degrees or less.

A guide system for guiding at least one movably-supported door wing, in particular a folding-sliding-door, relative to a stationary furniture part. The guide system includes a carrier for movably supporting the at least one door wing, a guide rail configured to be fixed to the stationary furniture part for guiding the at least one carrier, a guiding device for displaceably supporting the at least one carrier along the guide rail, a running carriage configured to be coupled to the at least one door wing, and a receiving device for receiving the at least one running carriage. The receiving device adjoins the carrier in a longitudinal direction of the carrier, and the receiving device is movably supported relative the carrier in the longitudinal direction of the carrier.

A rotary shaft link assembly shield structure is connected between a first support and a second support of two articles. The rotary shaft link assembly structure has a rotary shaft assembly, at least one flexible shield plate and at least one synchronous rotational assembly. The rotary shaft assembly has multiple connection members. Each connection member is correspondingly formed with at least one hollow section. The synchronous rotational assembly passes through the hollow sections of the connection members to respectively connect with the first and second supports. The flexible shield plate also passes through the hollow sections of the respective connection members. A middle section of the flexible shield plate is bent in reverse direction and two sides of the flexible shield plate respectively shield two surfaces of the synchronous rotational assembly.

A driver device for opening and closing a vehicle door, comprising an electric motor and a planetary gear gearbox, wherein the electric motor comprises an electric motor output shaft, and the planetary gear gearbox comprises a gearbox input shaft coaxially connected to the electric motor output shaft, and a gearbox output shaft coaxially connected to an end of a door shaft of the vehicle door to provide the door shaft with a torque required to open and close the vehicle door. Compared with vehicle door opening and closing functions in the prior art, the driver device can be installed by utilizing the space at the door shaft of the vehicle door, without affecting the integrity of the door body of the vehicle door. Furthermore, a vehicle door comprising the aforesaid driver device is further provided.

The invention relates to a spring assembly for driving a flap holder for a flap of an item of furniture, wherein the spring assembly has a first and a second holder, wherein the holders are pretensioned against one another by means of at least one spring, and wherein each holder comprises at least one spring support. Good lateral guiding of the springs disposed in such a spring assembly can be achieved in that the holders are pretensioned against one another by at least two springs disposed in series with one another, and that a coupling is disposed between the springs and transmits the force between the springs disposed in series with one another and comprises at least two spring guides laterally guiding the springs at least in sections.

A device includes a housing. The housing can define a duct having a central axis. A first loading surface can extend into the duct toward the central axis, while a second loading surface can extend into the duct toward the central axis. A first driver and a second driver can be situated within the duct along the central axis. The first driver can abut the second driver. A first spring biases the first driver away from the first loading surface, thereby causing the first driver to apply a first loading force to the second driver. A second spring applies a second loading force to the second driver, along a common direction with the first loading force, to bias the second driver away from the second loading surface, with the first spring and second spring operating in parallel on the second driver.