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US 6,143,122 AGranted
Adhesive bonding of strings of pocketed coil springs
AssigneeL&P Property Management Company
InventorsNiels S. Mossbeck, Thomas J. Wells
Life of this patent
Estimating the term…
Abstract
A method and system for manufacturing a spring core by adhesively bonding strings of pocketed coil springs together utilizes a moving adhesive applicator for depositing adhesive onto a moving string of pocketed coil springs. Subsequently, individual strings are adhesively bonded to similar strings to form the spring core of pocketed coil springs. The moving applicator may take one of any number of various embodiments which include reciprocating movement, rotational movement, pivotal movement and/or linear translational movement for spraying a pattern of adhesive onto the moving string of pocketed coil springs.
Claims54
A method for manufacturing a spring core comprising the steps of:
- providing a first string of pocketed springs, the springs having longitudinal axes which are substantially parallel to each other;
- moving the first string past an adhesive applicator and in a direction generally perpendicular to the longitudinal axes of the springs;
- applying an adhesive from the adhesive applicator onto a side surface of the moving pocketed springs;
- moving the adhesive applicator so that the adhesive being applied therefrom forms a pattern on the side surfaces of the pocketed springs;
- moving the first string relative to a similar second string of pocketed springs so that the side surface of the second string with the adhesive applied thereto contacts the first string and thereby adhesively bonds the first and second strings together;
- and
- repeating the steps until the spring core of a desired size is manufactured.
4 more elements
A method for manufacturing a spring core comprising the steps of:
- providing a first string of pocketed springs, the springs having longitudinal axes which are substantially parallel to each other;
- moving the first string past an adhesive applicator and in a direction generally perpendicular to the longitudinal axes of the springs;
- generally continuously spraying an adhesive from the adhesive applicator onto a side surface of the moving pocketed springs, the spraying of the adhesive being generally on only one of the pocketed springs at a time;
- moving the adhesive applicator within a plane generally parallel to the direction of movement of the pocketed springs so that the adhesive being sprayed therefrom forms a pattern on the side surfaces of the pocketed springs, the pattern of adhesive being generally continuous along the first string of pocketed springs and including a region of greater concentration of adhesive relative to a remainder of the pattern, the region of greater concentration of adhesive being located generally equidistance from adjacent pocketed springs of the first string and generally equidistance from longitudinal ends of the pocketed spring;
- moving the first string relative to a similar second string of pocketed springs so that the sprayed side surface of the second string contacts the first string and thereby adhesively bonds the first and second strings together;
- and
- repeating the steps until the spring core of a desired size is manufactured.
4 more elements
A spring core manufactured according to a method comprising the steps of:
- providing a first string of pocketed springs, the springs having longitudinal axes which are substantially parallel to each other;
- moving the first string past an adhesive applicator and in a direction generally perpendicular to the longitudinal axes of the springs;
- applying an adhesive from the adhesive applicator onto a side surface of the moving pocketed springs;
- moving the adhesive applicator so that the adhesive being applied therefrom forms a pattern on the side surfaces of the pocketed springs;
- moving the first string relative to a similar second string of pocketed springs so that the side surface of the second string with the adhesive applied thereto contacts the first string and thereby adhesively bonds the first and second strings together;
- and
- repeating the steps until the spring core of a desired size is manufactured.
4 more elements
A method for manufacturing a spring core comprising the steps of:
- providing a first string of pocketed springs, the springs having longitudinal axes which are substantially parallel to each other;
- moving the first string past an adhesive applicator and in a direction generally perpendicular to the longitudinal axes of the springs;
- applying an adhesive from the adhesive applicator onto a side surface of the moving pocketed springs;
- moving the adhesive applicator within a plane generally parallel to the direction of movement of the pocketed springs so that the adhesive being applied therefrom forms a pattern on the side surfaces of the pocketed springs, the pattern of adhesive comprising at least one generally sinusoidal line of adhesive generally along the first string of pocketed springs;
- moving the first string relative to a similar second string of pocketed springs so that the side surface of the second string with the adhesive applied thereto contacts the first string and thereby adhesively bonds the first and second strings together;
- and
- repeating the steps until the spring core of a desired size is manufactured.
4 more elements
A spring core manufactured according to a method comprising the steps of:
- providing a first string of pocketed springs, the springs having longitudinal axes which are substantially parallel to each other;
- moving the first string past an adhesive applicator and in a direction generally perpendicular to the longitudinal axes of the springs;
- applying an adhesive from the adhesive applicator onto a side surface of the moving pocketed springs;
- moving the adhesive applicator within a plane generally parallel to the direction of movement of the pocketed springs so that the adhesive being applied therefrom forms a pattern on the side surfaces of the pocketed springs, the pattern of adhesive comprising at least one generally sinusoidal line of adhesive generally along the first string of pocketed springs;
- moving the first string relative to a similar second string of pocketed springs so that the side surface of the second string with the adhesive applied thereto contacts the first string and thereby adhesively bonds the first and second strings together;
- and
- repeating the steps until the spring core of a desired size is manufactured .
4 more elements
Dependencies are inferred from the claim text.