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Mortise and tenon joints are strong and stable joints that can be used in many projects. They connect by either gluing or friction-fitting into place. The mortise and tenon joint also gives an attractive look. One drawback to this joint is the difficulty in making it because of the precise measuring and tight cutting required.
The talocrural joint is the only mortise and tenon joint in the human body, [9]: 1418 the term likening the skeletal structure to the woodworking joint of the same name. The bony architecture of the ankle consists of three bones: the tibia, the fibula, and the talus.
The joining technology is used in any type of mechanical joint which is the arrangement formed by two or more elements: typically, two physical parts and a joining element. The mechanical joining systems make possible to form a set of several pieces using the individual parts and the corresponding joining elements.
The ankle joint consists of the talus resting within the mortise created by the tibia and fibula as previously described. Since the talus is wider anteriorly (in the front) than posteriorly (at the back), as the front of the foot is raised (dorsiflexed) reducing the angle between the foot and lower leg to less than 90°, then the mortise is confronted with an increasingly wider talus.
The mortise is increased in size to receive a pair of folding wedges each side of the tenon. The hammer-headed key is used where there is no straight member to form the tenon. It is difficult to form a strong tenon on curved cut timber as the short grain there will weaken it, so two mortise sockets are formed one in each piece and a separate ...
The mortise is drilled 1 ⁄ 16 inch (1.6 mm) smaller than the treenail to create a tight fit and take advantage of friction in the mortise. In cases where the treenail is 24 inches (61 cm) or longer, the treenail should be shaped 1 ⁄ 8 inch (3.2 mm) smaller than the other half.
A Phoenician joint (Latin: coagmenta punicana) is a locked mortise and tenon wood joinery technique used in shipbuilding to fasten watercraft hulls.The locked (or pegged) mortise and tenon technique consists of cutting a mortise, or socket, into the edges of two planks and fastening them together with a rectangular wooden knob.
Their function in non-placental mammals is to stiffen the body during locomotion, [3] but in placentals they would inhibit the expansion of the abdomen during pregnancy.) [4] the rearmost bones of the foot fit into a socket formed by the ends of the tibia and fibula, forming a complete mortise and tenon upper ankle joint. [5]