Horn and ultrasonic joiner
AssigneeYazaki Corporation
InventorYasunori NABETA
Life of this patent
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Abstract
A horn has knurl-shaped protrusions and recesses that are formed of a plurality of protrusions, and are formed on a first end surface. Among the plurality of protrusions, at least a pair of protrusions arranged symmetrically at both outermost ends in a direction along a vibration direction are asymmetrical surface protrusions. In each of the asymmetrical surface protrusions, an angle value of an outer inclination angle is smaller than an angle value of an inner inclination angle.
Claims8
A horn that applies ultrasonic vibration to a plurality of objects to be joined sandwiched between an anvil and the horn, to join the objects to be joined to each other, the horn comprising:
- knurl-shaped protrusions and recesses that are formed of a plurality of protrusions each extending in a width direction perpendicular to a vibration direction of the horn, and that are formed on an end surface in contact with one of the objects to be joined, wherein
- among the plurality of protrusions, at least a pair of protrusions arranged symmetrically at both outermost ends in a direction along the vibration direction are asymmetrical surface protrusions,
- a cross-sectional shape perpendicular to a width direction of each of the asymmetrical surface protrusions is a triangle having a top of each of the asymmetrical surface protrusions as a vertex,
- among two side surfaces of each of the asymmetrical surface protrusions, an inclination angle of one of the two side surfaces inclined toward an outer side of the protrusions and recesses is defined as an outer inclination angle, and an inclination angle of the other of the two side surfaces inclined toward an inner side of the protrusions and recesses is defined as an inner inclination angle, and
- an angle value of the outer inclination angle is smaller than an angle value of the inner inclination angle.
Dependencies are inferred from the claim text.