CPC B25D 16/006 (2013.01) [B25D 11/062 (2013.01); B25D 16/003 (2013.01); B25D 2216/0084 (2013.01); B25D 2250/095 (2013.01); B25D 2250/121 (2013.01); B25D 2250/331 (2013.01)] | 17 Claims |
1. An electric hammer, comprising:
a main body;
a housing as a sub-assembly of the main body;
an electric motor at least partially disposed in the housing;
an output assembly comprising a sleeve rotatable about a first axis;
an impact assembly comprising a swash bearing and an impact block capable of being driven by the swash bearing to reciprocate in the sleeve, wherein the impact block is capable of outputting an impact force forward when moving in the sleeve; and
a mounting shaft for mounting the swash bearing, wherein the mounting shaft is capable of being driven by the electric motor to rotate about a second axis;
wherein the electric hammer has a drill mode and a hammer drill mode, when the electric hammer is in the drill mode, the sleeve rotates, and, when the electric hammer is in the hammer drill mode, the sleeve rotates and the impact block reciprocates in the sleeve;
wherein the electric hammer further comprises a clutch assembly having a first state in which the swash bearing is capable of being driven to move with the mounting shaft and a second state in which the mounting shaft is allowed to rotate relative to the swash bearing,
wherein the sleeve has a length L1 along a direction of the first axis,
wherein the main body has a length L2 along the direction of the first axis,
wherein the housing has a length L3 in a direction perpendicular to the first axis, and
wherein a ratio of the length L2 to the length L1 is greater than or equal to 2.5 and less than or equal to 4, and the length L3 is greater than or equal to 55 mm and less than 70 mm.
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