Strapping apparatus
US4155213A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Feb 22, 1978 |
| Grant date | May 22, 1979 |
| Priority date | — |
| Expiry date | Feb 22, 1998 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB65B11/04
- WIPO fieldHandling
- WIPO sectorMechanical engineering
Abstract
A strapping apparatus for applying a thermoplastic strap about an object by placing an end of the strap away from a supply thereof against the object and wrapping the portion of the strap adjacent that end about the object by rotating the object. Tensioning means is provided to pull the strap tightly about the object as the object is rotated by a platen. A clamp is located adjacent the platen to hold the object engaged with the platen as the platen is rotated in a first rotary direction. A cutting and sealing tool moves against a portion of the strap which is overlapped forming two layers of strap. The tool applies heat to the thermal plastic strap to soften the strap cutting away the portion of the strap toward the supply and sealing a segment of the overlapping portion together. The platen is then derotated in a second rotary direction opposite to the first rotary direction and the clamp means loosened so that the object which is wrapped with the strap falls from the platen. The platen is movable horizontally between two positions.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.