Power transmission belt and method of producing the same

摘要

To provide a power transmission belt and a method of producing the same that allows lightweight elements to be produced at low cost and allows the durability to be sufficiently ensured, the power transmission belt includes a plurality of elements each having both side end surface portions, a rocking edge portion rockably engaged with either one of a pair of other elements neighboring the element, and a concave-convex engagement portion engageable with the pair of other elements, in which each of the elements has a plate-like portion, a first convex portion projecting from one surface of the plate-like portion, and a second convex portion projecting from the one surface of the plate-like portion in a spaced relationship with the first convex portion to constitute the rocking edge portion, and each of the elements is engaged with the pair of other elements so as to press against one another by the first convex portion and the second convex portion.

主权项

1. A power transmission belt, comprising:
an endless band-like ring, and a plurality of elements stacked and bonded in pressable relationship with one another through the endless band-like ring, each of the elements, respectively, having both side end surface portions at its both ends in the belt width direction to be held in pressing engagement with pulleys, a rocking edge portion rockably engaged with either one of a pair of other elements adjacent to the both side surfaces of the element, and a concave-convex engagement portion engageable in concave and convex relationship with the pair of other elements, each of the elements including a plate-like portion having the both side end surface portions, a first convex portion projecting from one surface of the plate-like portion toward either one of the pair of other elements, and a second convex portion projecting from the one surface of the plate-like portion to be in spaced relationship with the first convex portion to constitute the rocking edge portion projecting from at least one surface of the plate-like portion to both sides of the slate-like portion in the belt width direction, each of the elements and the pair of other elements being engaged in pressable relationship with one another by the first convex portion and the second convex portion, and a projection height of the first convex portion from the one surface of the plate-like portion is larger than a projection height of the second convex portion from the one surface of the plate-like portion.