A joint structure installed in the physical structure is provided. The joint structure includes a first latching member and a second latching member. The first latching member includes a first main body, a head portion extending from the first main body and a first convex portion extending from the first main body. The second latching member includes a second main body, a second convex portion extending from the second main body and a third convex portion extending from the second main body. When the first latching member and the second latching member are in an assembling status, the first convex portion slides between the second convex portion and the third convex portion.

A joint structure installed in the physical structure is provided. The joint structure includes a first latching member and a second latching member. The first latching member includes a first main body, a head portion extending from the first main body and a first convex portion extending from the first main body. The second latching member includes a second main body, a second convex portion extending from the second main body and a third convex portion extending from the second main body. When the first latching member and the second latching member are in an assembling status, the first convex portion slides between the second convex portion and the third convex portion.

The present invention relates to a sandwich plate element connection system (1, 2, 3, 4, 5), comprising two sandwich plate elements (100) and a connection element (200, 400, 500, 600, 700) connecting said two sandwich plate elements (100) by means of an adhesive joint (250) and defining two recesses (210, 220, 410, 420, 510, 520, 530, 610, 620, 630, 640). The connection element (200, 400, 500, 600, 700) comprises a first part (200:1, 400:1, 500:1, 600:1, 700:1) and a second part (200:2, 400:2, 500:2, 600:2, 700:2) connected to each other by a snap fit joint (270, 470, 570, 670, 770), for formation of at least one of said two recesses (210, 220, 410, 420, 510, 520, 530, 610, 620, 630, 640). The adhesive joint (250) comprises an adhesive (260). A chassis (10) for a vehicle comprising a sandwich plate element connection system (1, 2, 3, 4, 5) and a method (20) for connecting two sandwich plate elements (100) are also provided.

The present subject matter discloses a board coupling structure with a first board and a second board. The first board and the second board are respectively formed with strip-shaped ribs and strip-shaped grooves that can be interlocked with each other. The strip-shaped rib can comprise at least one longitudinally extending arm and one or more transversely extending arms. In particular, the one or more spaced apart transversely extending arms can increase the contact surface of the strip-shaped rib and the strip-shaped groove. Moreover, the connected boards do not need connectors. In addition, the board coupling structure can have a wide range of applications with a particular use in connecting two adjacent boards of a box.

A set comprising a component, a panel and a mechanical locking device for locking the component to the panel is described. The component includes a first edge surface and the panel includes a second edge surface. The set wherein the mechanical locking device includes a locking groove at the second edge surface, the locking groove including at least one tongue groove, that the mechanical locking device includes at least one locking element at the first edge surface, the locking element including at least one insertion groove and a flexible tongue positioned in the insertion groove. The flexible tongue is configured to cooperate with the tongue groove for locking of the component to the panel in a first direction, which is perpendicular to the second edge surface, and the component is an extruded component.

To reduce concern of separation due to a user's unintended application of a load.

A joined body of a first structure member having a frame-like structure and a second structure member joined to an inside of the first structure member, wherein the first structure member has a protruding portion in which an anchor shape is formed, the second structure member has a hole portion that comes into contact with the protruding portion of the first structure member, and the protruding portion has a stress concentration portion on which stress concentrates when a load is applied to the second structure member.

The present subject matter discloses a board coupling structure with a first board and a second board. The first board and the second board are respectively formed with strip-shaped ribs and strip-shaped grooves that can be interlocked with each other. The first board and the second board can only move relative to each other in the inserting direction. The strip-shaped rib can comprise a longitudinally extending arm and an inclined or a curved arm. In particular, the strip-shaped rib can increase the contact surface of the strip-shaped rib and the strip-shaped groove. Moreover, the connected boards do not need connectors. In addition, the board coupling structure can have a wide range of applications with a particular use in connecting two adjacent boards of a box.

In an embodiment a towing pipe connection structure includes a vehicle body rear member including an aluminum material, a towing pipe at least partially including an aluminum material and a connection bracket including a bumper back beam plate in contact with a back panel of a vehicle body and including an insertion hole into which the towing pipe is inserted, an engage plate having an engage hole to which the towing pipe is connected and a connection plate connecting the bumper back beam plate and the engage plate, wherein the connection bracket is connected to a rear member of the vehicle body, and wherein the connection bracket includes an aluminum material.

In an embodiment a towing pipe connection structure includes a vehicle body rear member including an aluminum material, a towing pipe at least partially including an aluminum material and a connection bracket including a bumper back beam plate in contact with a back panel of a vehicle body and including an insertion hole into which the towing pipe is inserted, an engage plate having an engage hole to which the towing pipe is connected and a connection plate connecting the bumper back beam plate and the engage plate, wherein the connection bracket is connected to a rear member of the vehicle body, and wherein the connection bracket includes an aluminum material.

A locking mechanism for detachable frames includes at least one detachable frame having at least one retaining through-hole; an edge connector having a left protrusion and a right protrusion, the left and right protrusions engaged with the retaining through-holes; and a locking retainer having a left retaining wall and a right retaining wall, the left and right retaining walls slidably coupled with the left protrusion and the right protrusion.