A connecting element for connecting profile rails and/or profiles of various shape comprises a planar base part which comprises a central web and two lateral limbs which are angled with respect to the web. At least one of the limbs comprises a base part surface section slung out from the web.

A stacking ring for a chair base may be disposable between a first and second chair base such that the stacking ring generally prevents lateral movement of the first chair base relative to the second chair base. The stacking ring may be integrally formed to the chair base, or separate and disposable between at least two chair bases. The stacking ring may substantially prevent rotation of a first chair base relative to a second chair base.

A connector includes at least two cavities or receptacles extending from a base to receive adjacent tubes of a wall or panel. The receptacles are closed at one end. At least two walls extend from the base in the same direction as the receptacles. The walls are positioned on the base and outside the receptacles such that the panels are secured to a specific angular orientation with respect to each other. A top connector and a bottom connector are used to secure rods or tubes of adjacent panels. A series of top and bottom connectors can be used to secure multiple panels to form an enclosure, such as a kennel or gazebo.

Building or structural panels may be joined, such as to form walls or floors. The panels may be connected in various orientations via one or more connectors. The connectors may mount to anchors associated with the panels. The panels may have outer skins located over an expanded core comprising a matrix of supporting elongate members and voids or openings, with the anchors located at edges of the panels.

This invention concerns a partially discontinuous inner sleeve for use in a rigid flange coupling. The partially discontinuous sleeve has an internal cylindrical passage for, in use, receiving an end of a shaft. The partially discontinuous sleeve further has at least two partial discontinuities along the length of the sleeve in the form of two discrete axial slits in the sleeve. These slits are displaced from each other to form a connecting formation between them. The invention further concerns an internal connection assembly including the partially discontinuous in the sleeve, and a rigid flange coupling including such internal connection assembly.

A water-proof sealing structure for vehicle roof racks includes a sealing member which includes a first end, a second end and a shank formed between the first and second ends. The first end of the sealing member includes a first sealing portion which seals the inner periphery of a male end of a first pipe of the vehicle roof rack. The second end of the sealing member includes a second sealing portion which seals the opening of the male end and also seals the inner periphery of a female end of a second pipe of the vehicle roof rack. The shank has a positioning hole defined radially therethrough. A bolt extends through the first and second pipes and the positioning hole to connect the male end to the female end. The positioning hole is a tapered hole to allow the bolt to be movable therein.

A twistable and stackable shelf includes storage members, an elastic member, a first supporting pipe, a second supporting pipe, a first connecting member, and a second connecting member. Each of the first and second connecting member includes an end portion defining an inserting hole and an inserting portion defining a bottom groove and fluidly connected to the inserting hole. Two ends of the elastic member are inserted into the inserting holes and extend to the bottom grooves; two hooking members are arranged in the bottom grooves. The first and second supporting pipes form a vertical arrangement through the first and second connecting members and support the plurality of the storage members in a vertical direction. Or, the first and second supporting pipes form a horizontal arrangement through the first and second connecting members, and the storage members are twisted and stacked in the vertical direction.

A stacking ring for a chair base may be disposable between a first and second chair base such that the stacking ring generally prevents lateral movement of the first chair base relative to the second chair base. The stacking ring may be integrally formed to the chair base, or separate and disposable between at least two chair bases. The stacking ring may substantially prevent rotation of a first chair base relative to a second chair base.

A post coupler having a first body portion and a second body portion. Each body portion having an inner edge, an outer edge, a reverse flange, and at least one post alignment tab. Each reverse flange forms a post receiving slot. The first and second body portions are coupled to each other at approximately 90 degrees. A method of using the post coupler comprises the steps of a) providing a first post section and a second post section, b) inserting the first post section along the post receiving slots until the first notch interacts with the tab, and c) inserting the second post section along the post receiving slots until the second notch interacts with the tab.

A stacking ring for a chair base may be disposable between a first and second chair base such that the stacking ring generally prevents lateral movement of the first chair base relative to the second chair base. The stacking ring may be integrally formed to the chair base, or separate and disposable between at least two chair bases. The stacking ring may substantially prevent rotation of a first chair base relative to a second chair base.