Hair clipper with a rotary motor vibration and noise damper

• US 9,038,276 B2
• Filed: 03/15/2013
• Issued: 05/26/2015
• Est. Priority Date: 03/15/2013
• Status: Active Grant

• Current Assignee: Wahl Clipper Corporation
• Original Assignee: Wahl Clipper Corporation
• Inventors: Gesiakowski, Jeff, Arndt, Steven
• Primary Examiner(s): PRONE, JASON D
• Application Number:
  US13/840,315
• Publication Number:
  US 20140259691A1
• Time in Patent Office: 802 Days
• Field of Search: 30194-204, 30208-210, 30215-220
• US Class Current: 30/208
• CPC Class Codes: B26B 19/06 involving co-operating cutting elements both of which have shearing teeth
• CPC Class Codes: B26B 19/28 Drive layout for hair clippers or dry shavers, e.g. providing for electromotive drive electric motors per se H02
• CPC Class Codes: B26B 19/3853 Housing or handle
• CPC Class Codes: B26B 19/3866 Seals or dampers

Abstract

A hair clipper has a base structural housing with a blade set operably secured thereto. The blade set has a stationary blade and a reciprocating blade. The base has at least one support for a rotary motor. A flexible motor vibration and noise damper fits over half of the motor, and a motor cover is secured to the base structural housing over the vibration damper. A secondary housing cover is secured to the base structural housing over the motor cover.

Claims

1. A hair clipper having:

a base structural housing with a blade set operably secured thereto, the blade set having a stationary blade and a reciprocating blade,

a rotary motor having a shaft extending through the motor between a front bearing and a back bearing of the motor, the shaft having a cam near the front bearing for driving the reciprocating blade,

the base structural housing having at least one support for the motor,

the motor further having a base side and a cover side, the base side being supported by the at least one support in the base structural housing,

a flexible motor vibration damper formed to fit over the cover side of the motor,

a motor cover secured to the base structural housing over the vibration damper, and

a secondary housing cover secured to the base structural housing over the motor cover.

2. The hair clipper of claim 1, wherein the vibration damper has:

an inside surface that faces the motor and an outside surface that faces the motor cover, and

a plurality of spaced ribs on the inside surface, and the ribs defining channels therebetween.

3. The hair clipper of claim 2, wherein the vibration damper has a raised portion on the outside surface, the motor cover has an opening through which the raise portion of the vibration damper passes, and the raised portion being compressed against the secondary housing cover to reduce vibrations in the secondary housing cover.

4. The hair clipper of claim 3, wherein the secondary housing cover has at least one rib adjacent the raised portion.

5. The hair clipper of claim 2, wherein the vibration damper has a plurality of openings for dissipating heat.

6. The hair clipper of claim 5, wherein the motor cover has motor cover openings corresponding to the heat dissipation openings in the vibration damper.

7. The hair clipper of claim 2, wherein

the base structural housing has a pair of slots located adjacent opposing sides of the base structural housing, and

the vibration damper has a first pair of protrusions that respectively fit into the slots in the base structural housing for positioning the vibration damper over the cover side of the motor.

8. The hair clipper of claim 7, wherein

the motor cover has a second pair of protrusions that respectively fit into the slots in the base structural housing for positioning the motor cover over the vibration damper.

9. The hair clipper of claim 8, wherein the first pair of protrusions and the second pair of protrusions stiffen the base structural housing when respectively received by the slots.