Patent ID: 11933070
Assignee: nan
Field: Civil engineering (Other fields)
Classification: CPC E | IPC E

Claim 12:
13. A method for installing a handle assembly on a door or window having a defined thickness, said handle assembly comprising:
a handle suitable for installation on one side of the door or window and a second element suitable to be mounted on an opposite side of the door or window;
a pin element having a main extension along a pin rotation axis (X) and suitable to penetrate the door or window in a hole obtained in the door or window, said pin element comprising a left end and a right end, each end being insertable in the handle or in the second element at a variable depth, said pin element being rotatable around the pin rotation axis (X) upon force exerted on the handle;
a friction reducing group configured to reduce friction generated by a rotating movement of the handle, said friction reducing group being suitable to be coaxially arranged on the pin element and to be positioned at least between the handle and the door or window in an axial direction of the pin rotation axis (X);
clamping devices configured to constrain the handle and/or the second element on the pin element at adjustable distances along the axial direction (X) according to the thickness of the door or window, so that when the handle assembly is installed on the door or window, an axial clamping pressure of the handle and of the second element is maintained on the respective side of the door or window,
wherein said friction reducing group comprises an oblique contact ball bearing and an annular member associated with each of the handle and the second element;
wherein the oblique contact ball bearing transfers a first portion of the axial clamping pressure in the axial direction to the annular element to secure the annular element upon the door or window;
wherein the oblique contact ball bearing transfers a second portion of the axial clamping pressure in a radial direction perpendicular to the axial direction;
wherein the annular member comprises an outer surface upon which the oblique contact ball bearing engages and bears there against, and an opposite inner surface which is disposed upon an outer surface of the door; and
wherein the handle assembly only contacts the door where the inner surface of the annular member is said disposed on the outer surface of the door,
the method comprising the steps of:
a) inserting the pin element in a through-hole of the door or window and securing the pin element to a handle on one side of the door or window;
b) inserting the pin element protruding from the hole on the opposite side of the door or window into a second element, by an axial movement of approach between the handle and the second element until the door or window is encountered;
c) actuating the clamping devices to reach a configuration of the handle assembly that maintains an axial pressure of the handle and of the second element on the respective side of the door or window, said axial pressure generating an axial force of at least 1000 N between the second element and the handle with the sides of the door or window.