| 摘要 |
<p>The present invention is related to an assembly method of the washing tub (1) of a laundry washing machine (100) wherein the washing tub (1) comprises a first hemi-shell-shaped section (4) and a second hemi-shell-shaped section (5) which are made of plastic material and are coupled to one another in watertight manner along conjugated coupling rims (4a, 5a); the assembly method of the washing tub (1) comprising the steps of: - placing the first hemi-shell-shaped section (4) in a first supporting template (11), inside a corresponding receiving seat (11a) structured for receiving the first hemi-shell-shaped section (4) with the corresponding coupling rim (4a) faced to the outside of the same first supporting template (11); - placing the second hemi-shell-shaped section (5) in a second supporting template (12), inside a corresponding receiving seat (12a) structured for receiving the second hemi-shell-shaped section (5) with the corresponding coupling rim (5a) faced to the outside of the same second supporting template (12); - arranging the first (11) and second supporting templates (12) so as to put the conjugated coupling rims (4a, 5a) of the first (4) and second hemi-shell-shaped sections (5) in abutment to one another and keeping them locally substantially coplanar to a common reference laying plane (P); - vibrating for a given time the second supporting template (12) with respect to the first supporting template (11) parallel to said common reference laying plane (P), so as to merge the second hemi-shell-shaped section (5) to the first hemi-shell-shaped section (4) via a vibration welding process. The step of placing the second hemi-shell-shaped section (5) inside the receiving seat (12a) of the second supporting template (12) comprises inserting a number of outwards-projecting protrusions (13) that stick out from the second supporting template (12), in pass-through manner across corresponding hold portions of the second hemi-shell-shaped section (5).</p> |
