ASSEMBLY FOR POWER TOOLS AND CHAINSAW HAVING A MULTI-SPEED TRANSMISSION

• Main Authors: Barnett, Corey, Baskar, Ashok
• Format: Patent
• Language: English; French; German
• Published: 21.03.2018
• Subjects: BLASTING; COMBINATION OR MULTI-PURPOSE TOOLS NOT OTHERWISE PROVIDEDFOR; COMPONENTS OR ACCESSORIES THEREFOR; DETAILS OR COMPONENTS OF PORTABLE POWER-DRIVEN TOOLS NOTPARTICULARLY RELATED TO THE OPERATIONS PERFORMED AND NOTOTHERWISE PROVIDED FOR; ENGINEERING ELEMENTS AND UNITS; GEARING; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVEFUNCTIONING OF MACHINES OR INSTALLATIONS; HAND TOOLS; HEATING; LIGHTING; MANIPULATORS; MECHANICAL ENGINEERING; NAILING OR STAPLING MACHINES IN GENERAL; PERFORMING OPERATIONS; PORTABLE POWER-DRIVEN TOOLS; SAWS FOR WOOD OR SIMILAR MATERIAL; THERMAL INSULATION IN GENERAL; TRANSPORTING; WEAPONS; WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL

Dual speed gearboxes, transmissions, and apparatuses incorporating the same are provided herein. Example embodiments include a first gear (124) and a second gear (126) that are coupled to an output spindle (106), a first bracket (144) and a second bracket (146) for moving the gears (124) along the output spindle (106), an armature shaft (130) with two different sized pinions, and an actuator (116) that moves the brackets (144) to bring the gears (124) into contact with the pinions.