Dual motor strapper
US6895733B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | May 5, 2004 |
| Grant date | May 24, 2005 |
| Priority date | — |
| Expiry date | May 5, 2024 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB29C66/4324
- WIPO fieldHandling
- WIPO sectorMechanical engineering
Abstract
A pneumatic strapping tool for tensioning a strap around a load, adhering the strap onto itself, and cutting a feed end of the strap includes a piston, a weld motor operably connected to the piston and a vibrating weld element operably connected to the piston for contacting the strap and adhering the strap onto itself. A tensioning motor is configured for unidirectional rotation. A feed wheel is operably connected to the tensioning motor by a drive assembly to tension the strap prior to adhering the strap onto itself. A transmission cooperates with the drive assembly and is switchable between a first state in which the transmission engages the drive assembly to permit only one-way rotation of the drive assembly and a second state in which the transmission permits two-way rotation of the drive assembly. The strapping tool includes a self-contained pneumatic module that is removably mounted to a cylinder housing. The module includes a compressed gas inlet, a plurality of valves and passageways between the inlet and the valves to provide compressed gas to the cylinder housing, a pneumatic weld motor and the pneumatic tensioning motor. The module includes at least one timer for operati…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.