Rotary hammer having both a reciprocating hammer mechanism and a ratcheting hammer mechanism
AssigneeBlack & Decker Inc.
InventorMichael Stirm
Life of this patent
Estimating the term…
Abstract
A rotary hammer incorporating both a reciprocating drive for generating a first hammering action transmittable to a tool bit and ratcheting mechanism for generating a second hammering action transmittable to the tool bit. The first hammering action and the second hammering actions differing in frequency and force of the impacts transmitted to the tool bit. Furthermore, the reciprocating drive and ratcheting mechanism are selectably engageable so that the first hammering action and the second hammering action may be selectably transmitted to the tool bit individually or in combination depending on the desired mode operation.
Claims14
A rotary hammer comprising:
- a housing;
- a motor mounted within the housing;
- a tool holder support rotatably mounted on the housing and rotatably drivable by the motor;
- a tool holder connected to the distal end of the tool holder support;
- a ratcheting mechanism, including a rotationally fixed set of teeth engageable with a selectably rotatable set of teeth, for selectably generating a first hammering action transmittable to the tool holder;
- and
- a reciprocating drive mechanism including a striker mounted in a freely slideable manner within the housing for selectably generating a second hammering action transmittable to the tool holder.
A rotary hammer comprising:
- a housing;
- a motor mounted within the housing;
- a tool holder support rotatably mounted on the housing and rotatably drivable by the motor;
- a tool holder connected to the distal end of the tool holder support;
- a ratcheting mechanism for selectably generating a first hammering action transmittable to the tool holder:
- a reciprocating drive mechanism for selectably generating a second hammering action transmittable to the tool holder, the reciprocating drive mechanism including a wobble drive assembly, a support, and a striker mounted in a freely slideable manner within the housing.
Dependencies are inferred from the claim text.