Importance

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Abstract

Provided is an impact type electric tool. A striking mechanism is used, which uses a hammer having striking claws that are equally arranged in the rotational direction and an anvil having struck claws. A relationship between a striking energy E, which the hammer has right before striking the anvil, and a disengaging torque T_B, which is applied between the hammer and the anvil right before the hammer is disengaged from the anvil, is set as 5.3×T_BB in the case of three claws and set as 9.3×T_BB in the case of two claws, so as to perform striking by skipping one of the claws of the hammer and the anvil when a high torque is required. Accordingly, the electric tool achieves output of a high torque while maintaining a favorable operational feeling during striking.

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First Claim