Hand-held saber saw
US6920695B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jan 31, 2003 |
| Grant date | Jul 26, 2005 |
| Priority date | — |
| Expiry date | Jan 31, 2023 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S30/01
- WIPO fieldMachine tools
- WIPO sectorMechanical engineering
Abstract
A reciprocating hand saw (10), having a motor housing (16) and a gearbox (28) that receive a battery-operated direct-current motor (18) with a motor shaft having a shaft end (22) and a gear (28), respectively, which gear—as known per se in reciprocating saws—is connected to the shaft end in a way driven to rotate and whose gear input pinion (26) converts the rotation of the motor shaft end (22) into an up-and-down motion of a push rod (34) that carries a sawblade (38), can be produced economically and is especially sturdy because the gear (28) and its gearbox (14) originate in a reciprocating saw that can be operated by alternating current, and because between the shaft end (22) and the gear input pinion (26), a multi-stage coupling (24), disposed in a manner fixed against relative rotation for transmitting torque, comprises parts that can be easily separated from one another.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.