Impact tool

Abstract

An impact driver or impact tool includes a motor, a motor housing that houses the motor, a grip housing integrally provided with the motor housing, a hammer case is disposed frontward of the motor housing, a spindle rotated by the motor, a hammer housed inside the hammer case and configured to be rotated by the spindle, and an anvil housed inside the hammer case which anvil is configured to be impacted by the hammer. In this impact driver, a length from a rear end of the motor housing to a front end of the anvil (i.e., the front-rear length of a main body) is less than 128 mm.

1 .- 20 . (canceled) 
     
     
         21 . An impact tool, comprising:
 a motor;   a motor housing for housing the motor;   a grip housing disposed downward of the motor housing;   a battery pack disposed downward of the grip housing;   a planetary gear mechanism disposed frontward of the motor;   a spindle disposed frontward of the planetary gear mechanism;   a hammer disposed on the outer circumference of the spindle; and   an anvil disposed frontward of the hammer;   wherein a length from a rear end of the motor housing to a front end of the anvil is 128 mm or less.   
     
     
         22 . The impact tool according to  claim 21 , wherein:
 the battery pack has a voltage that is greater than 18 V, and   a length from a lower end of the battery pack to an upper end of the motor housing is 300 mm or less.   
     
     
         23 . The impact tool according to  claim 22 , wherein the impact tool has a weight of 2.0 kilograms or less. 
     
     
         24 . The impact tool according to  claim 22 , wherein the impact tool is configured to generate an output torque of 170 Nm or greater. 
     
     
         25 . The impact tool according to  claim 24 , wherein the impact tool has a weight of 2.0 kilograms or less. 
     
     
         26 . The impact tool according to  claim 24 , wherein the length from the rear end of the motor housing to the front end of the anvil is 125 mm or less. 
     
     
         27 . The impact tool according to  claim 24 , wherein the length from the rear end of the motor housing to the front end of the anvil is 120 mm or less. 
     
     
         28 . The impact tool according to  claim 24 , wherein the length from the rear end of the motor housing to the front end of the anvil is 115 mm or less. 
     
     
         29 . The impact tool according to  claim 24 , wherein the length from the rear end of the motor housing to the front end of the anvil is 110 mm or less. 
     
     
         30 . The impact tool according to  claim 21 , wherein the length from the rear end of the motor housing to the front end of the anvil is 125 mm or less. 
     
     
         31 . The impact tool according to  claim 21 , wherein the length from the rear end of the motor housing to the front end of the anvil is 120 mm or less. 
     
     
         32 . The impact tool according to  claim 21 , wherein the length from the rear end of the motor housing to the front end of the anvil is 115 mm or less. 
     
     
         33 . The impact tool according to  claim 21 , wherein the length from the rear end of the motor housing to the front end of the anvil is 110 mm or less. 
     
     
         34 . The impact tool according to  claim 21 , wherein the impact tool is configured to generate an output torque of 170 Nm or greater. 
     
     
         35 . The impact tool according to  claim 34 , wherein the length from the rear end of the motor housing to the front end of the anvil is 125 mm or less. 
     
     
         36 . The impact tool according to  claim 34 , wherein the length from the rear end of the motor housing to the front end of the anvil is 120 mm or less. 
     
     
         37 . The impact tool according to  claim 34 , wherein the length from the rear end of the motor housing to the front end of the anvil is 115 mm or less. 
     
     
         38 . The impact tool according to  claim 34 , wherein the length from the rear end of the motor housing to the front end of the anvil is 110 mm or less.