US 2014/0338502 A1 · Motorized Hand Tool Apparatus and Assembly Method

Abstract

A motorized hand tool such as a cordless ratchet wrench is configured for reducing assembly and disassembly processes. The motorized hand tool includes a motor end plate that may be fastened to a drive member such as a ratchet head assembly without the use of fasteners or assembly tooling such as presses, fixtures or hammers. A flange on the motor end plate can pass through a keyway in a periphery of the ratchet head assembly and may be then be rotated out of the keyway and into a peripheral slot of the ratchet head assembly. A rib protruding inwardly from a clamshell housing portion of the tool closes the keyway to prevent the flange on the motor end plate from rotating back into the keyway.

Claims17

Dependent claims

A motorized hand tool apparatus, comprising:

a motor assembly;
a ratchet head assembly coupled to the motor assembly;
and
a clamshell housing assembled around the motor assembly;
wherein the motor assembly comprises:
a motor end plate coupled to a motor, the motor end plate further comprising a flange portion;
and
wherein the ratchet head assembly comprises:
a slot defined by a lip around a first peripheral segment of the ratchet head assembly, the slot sized to engage the flange portion;
an aperture defined by an interruption in the lip around a second peripheral segment of the ratchet head assembly, the aperture sized to provide a keyway for assembling the flange portion into the slot;
wherein the clamshell housing comprises:
an inwardly protruding rib portion engaged in the aperture and obstructing rotation of the flange from the slot.

9 more elements

Dependencies are inferred from the claim text.

Motorized Hand Tool Apparatus and Assembly Method

Life of this patent

Motorized Hand Tool Apparatus and Assembly Method

Life of this patent

Abstract

Claims17