US 2023/0147598 A1 · WORKING DEVICE

Abstract

In a working device, a cover added outside an enclosure portion is used to utilize vibration of the working device during an operation thereof to cool the enclosure portion. The working device has: a motor; a speed reduction mechanism for decelerating rotation of the motor; a striking mechanism; an enclosure portion (main body housing, hammer case 5) accommodating them; and a cover covering at least a portion of an outer surface of the enclosure portion. An airflow passage is formed between an outer surface of the hammer case and the cover and is configured so as to allow inflow and outflow of outside air. The cover is held so as to be slightly movable by sandwiching an elastic member in an axial line direction and, by the cover being moving forward and backward during its operation, air goes into or comes out of the airflow passage to cool the hammer case.

Claims14

Dependent claims

A working device comprising:

a drive unit that generates a driving force;
an energy supply unit that supplies energy to the drive unit;
a power transmission unit that is driven by the drive unit;
an enclosure portion accommodating the drive unit, the energy supply unit, and the power transmission unit;
and
a cover portion that covers at least a part of an outer surface of the enclosure portion,
wherein the working device has an airflow passage configured to allow an inflow and an outflow of outside air by being opened and closed between the outer surface of the housing portion and the cover portion.

4 more elements

Dependencies are inferred from the claim text.

Working device

Life of this patent

Working device

Life of this patent

Abstract

Claims14