초록 ▼

A coupling element between tubular shaft sections comprises two mutually adjacent membrane walls, each having radially outer and inner circumferences. The membrane walls are mutually connected at their radially outer circumferences. The radially inner circumferences of the membrane walls are in axia

A coupling element between tubular shaft sections comprises two mutually adjacent membrane walls, each having radially outer and inner circumferences. The membrane walls are mutually connected at their radially outer circumferences. The radially inner circumferences of the membrane walls are in axial alignment with radially inner circumferences of respective shaft sections, and the membrane walls are connected at their radially inner circumferences to the tubular shaft sections. The radially outer circumferences of the membrane walls are elastically decreasable, and the radially inner circumferences of the membrane walls are elastically expandable in response to axial forces applied to the membrane walls in axially opposite directions.

대표청구항 ▼

A resilient coupling element for use in a torque transmission path and adapted for allowing at least one of axial, radial and angular displacement of adjacent sections of said torque transmission path, said resilient coupling element having an axis and comprising two membrane components (1,2), each

A resilient coupling element for use in a torque transmission path and adapted for allowing at least one of axial, radial and angular displacement of adjacent sections of said torque transmission path, said resilient coupling element having an axis and comprising two membrane components (1,2), each of said membrane components (1,2) having a radially outer circumference (D), a radially inner circumference (d) and an annular membrane wall portion (1a,2a) extending radially between said radially outer circumference (D) and said radially inner circumference (d) substantially along a respective plane perpendicular to said axis and having a respective radial length, said membrane components (1,2) being connected with each other at their respective radially outer circumferences (d) by spacer rim means (7,8) extending in axial direction between said two membrane components (1,2) and defining a gap between respective axially opposite faces (1c,2c) of said membrane wall portions (1a,2a) of said two membrane components (1,2), said gap having an axial gap width in an unloaded condition of said coupling element, at least one (2) of said membrane components (1,2) having at its radially inner circumference (d) a connector hub portion, said connector hub portion being welded by an annular radially inner weld (52) to an annular shaft section (4a) of said torque transmission path, said connector hub portion having a radially inward directed, radially inner circumferential face having a diameter corresponding to the diameter of said radially inner circumference (d) of the respective membrane component (2), said shaft section (4a) having a radially inward directed, radially inner circumferential face, said radially inward directed, radially inner circumferential face of said connector hub portion and said radially inward directed, radially inner circumferential face of said shaft section (4a) being in substantial axial alignment with each other, said membrane wall portions (1a,2a) of said membrane components (1,2) having respective wall thicknesses such that said axial gap width is increasable in response to axially opposite pulling forces acting onto said membrane components (1,2) along said respective radially inner circumferences (d) thereof, the increase of axial gap width under action of said axially opposite pulling forces being dependent on the radial location of gap width measuring points along a radial line extending between said radially inner circumferences (d) and said spacer rim means (7,8), the increase of axial gap width being larger at said radially inner circumferences (d) and smaller at said spacer rim means (7,8), said spacer rim means (7,8) having a predetermined rim stiffness against elastic reduction of a radially outer diameter (D) thereof corresponding to said radially outer circumferences (D) of said two membrane components (1,2), said connector hub portion providing a predetermined stiffness against elastic increase of a diameter (d) thereof corresponding to said radially inner circumference (d) of said at least one membrane component (2), said radial length of said membrane wall portion of said at least one membrane component (2) as measured along a radial line in the respective plane perpendicular to said axis being reducible in response to said increase of axial gap width resulting from said axially opposite directed pulling forces, said predetermined rim stiffness of said spacer rim means (7,8) against elastic reduction of its radially outer diameter (D) and said predetermined stiffness against the increase of the inner diameter (d) of said connector hub portion being such that, in response to said increase of axial gap width, both an appreciable diameter reduction (2DD