Invention Grant
- Patent Title: Rotary hammer having both a reciprocating hammer mechanism and a ratcheting hammer mechanism
- Patent Title (中): 旋转锤具有往复锤机构和棘轮锤机构
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Application No.: US11339434Application Date: 2006-01-25
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Publication No.: US07398835B2Publication Date: 2008-07-15
- Inventor: Michael Stirm
- Applicant: Michael Stirm
- Applicant Address: US DE Newark
- Assignee: Black & Decker Inc.
- Current Assignee: Black & Decker Inc.
- Current Assignee Address: US DE Newark
- Agent Michael P. Leary; Adan Ayala
- Priority: GB0501617.5 20050126
- Main IPC: B23B45/16
- IPC: B23B45/16 ; B25D11/12 ; B25D16/00

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.
Public/Granted literature
- US20060162943A1 Rotary hammer Public/Granted day:2006-07-27
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