LOCK NUT SYSTEM

• US 20140294531A1
• Filed: 06/16/2014
• Published: 10/02/2014
• Est. Priority Date: 02/15/2006
• Status: Active Grant

• Current Assignee: Temper AXLE Products Corporation, Temper Corporation
• Original Assignee: John E. Rode
• Inventors: Rode, John E.
• Granted Patent: US 9,200,673 B2
• Time in Patent Office: Days
• US Class Current: 411/246
• CPC Class Codes: B23P 19/06 Screw or nut setting or loosening machines
• CPC Class Codes: B23P 19/065 Arrangements for torque limiters or torque indicators in screw or nut setting machines for hand tools B25B23/14
• CPC Class Codes: B25B 27/062 using screws
• CPC Class Codes: F16B 31/043 Prestressed connections tensioned by means of liquid, grease, rubber, explosive charge, or the like hydraulic bolt tensioners B25B29/02
• CPC Class Codes: F16B 39/12 by means of locknuts
• CPC Class Codes: F16B 39/14 made of thin sheet material or formed as spring-washers locknuts per se made of thin sheet metal F16B37/02
• CPC Class Codes: F16B 39/28 by special members on, or shape of, the nut or bolt F16B39/26 takes precedence; locknuts F16B39/12
• CPC Class Codes: F16B 39/32 Locking by means of a pawl or pawl-like tongue
• CPC Class Codes: F16C 19/364 with tapered rollers, i.e. rollers having essentially the shape of a truncated cone
• CPC Class Codes: F16C 19/54 Systems consisting of a plurality of bearings with rolling friction spindle bearings F16C35/08
• CPC Class Codes: F16C 19/548 in O-arrangement
• CPC Class Codes: F16C 2229/00 Setting preload
• CPC Class Codes: F16C 2326/02 Wheel hubs or castors in general B60B
• CPC Class Codes: F16C 25/06 Ball or roller bearings
• CPC Class Codes: F16C 33/30 Parts of ball or roller bearings
• CPC Class Codes: F16C 43/04 Assembling rolling-contact bearings
• CPC Class Codes: Y10T 29/497 Pre-usage process, e.g., preloading, aligning
• CPC Class Codes: Y10T 29/53091 for work-holder for assembly or disassembly
• CPC Class Codes: Y10T 29/53104 Roller or ball bearing
• CPC Class Codes: Y10T 29/5383 having fluid operator

Abstract

A lock nut system includes a molded nut having a plurality of teeth and a molded keeper having a plurality of keeper teeth engageable with the plurality of teeth to inhibit movement of the keeper relative to the nut when the plurality of teeth engages the plurality of keeper teeth. The keeper has a radially inner side configured to engage a shaft to inhibit rotational movement of the nut relative to the shaft when the plurality of teeth engages the plurality of keeper teeth.

Claims

1. A lock nut system comprising:

a threaded nut for engaging a shaft;

a keeper having a projection configured to engage a notch of the shaft; and

a retaining member separate from said keeper and said nut, said retaining member configured to be received within a slot of said nut, and said retaining member engaged to said keeper and said nut to inhibit rotational movement of said nut relative to said shaft when said projection engages the notch of the shaft.

2. The system of claim 1 wherein said retaining member is more flexible than said keeper.

3. The system of claim 1 wherein said retaining member extends into a cavity of said keeper to inhibit rotation of said retaining member relative to said keeper and said nut relative to said shaft.

4. The system of claim 1 wherein said retaining member comprises at least one leg configured to be received in said slot.

5. The method of claim 4 wherein said retaining member is aligned axially relative to said keeper such that said retaining member, said nut and said keeper are engaged when said at least one leg is received in said slot.

6. The system of claim 4 wherein said at least one leg comprises two legs elastically deformable to allow said retaining member to be attached to said nut by inserting said two legs in said slot.

7. The system of claim 5 wherein said retaining member is formed of a material different than said keeper.