Abstract

Lead screw nuts having a body having a threaded opening having a thread region formed from a plurality of different materials having different properties, e.g., a thread region formed from a first material, such as a relatively low friction material, and a second material, such as a relatively high strength material (having thread portions formed from the first material and thread portions formed from the second material).

IPC Classes  ?

• F16H 57/01 - Monitoring wear or stress of gearing elements, e.g. for triggering maintenance
• B29C 45/14 - Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mouldApparatus therefor incorporating preformed parts or layers, e.g. injection moulding around inserts or for coating articles
• B33Y 80/00 - Products made by additive manufacturing
• F16H 25/24 - Elements essential to such mechanisms, e.g. screws, nuts
• B29K 27/18 - PTFE, i.e. polytetrafluorethene
• B29L 1/00 - Articles provided with screw threads

Abstract

Lead screw nuts having a body having a threaded opening having a thread region formed from a plurality of different materials having different properties, e.g., a thread region formed from a first material, such as a relatively low friction material, and a second material, such as a relatively high strength material (having thread portions formed from the first material and thread portions formed from the second material).

IPC Classes  ?

• F16H 57/01 - Monitoring wear or stress of gearing elements, e.g. for triggering maintenance
• F16H 25/24 - Elements essential to such mechanisms, e.g. screws, nuts
• B29C 45/14 - Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mouldApparatus therefor incorporating preformed parts or layers, e.g. injection moulding around inserts or for coating articles
• B33Y 80/00 - Products made by additive manufacturing
• B29K 27/18 - PTFE, i.e. polytetrafluorethene
• B29L 1/00 - Articles provided with screw threads

Abstract

An anti-lash nut assembly for installation on a threaded rod and including a lead nut, a collar, and a spring positioned between the lead nut and the collar. The lead nut has a set of tabs extending radially outward from a rear end of the body. The collar has a set of clearance slots on an inside surface. The set of clearance slots are configured for sliding of the set of tabs through the clearance slots in the rear direction. The collar has a set of ramps on an inside surface. Each of the set of ramps is configured for engagement with each of the set of tabs to prohibit axial movement of the collar in the rear direction.

IPC Classes  ?

• F16H 25/20 - Screw mechanisms

Abstract

An anti-lash nut assembly for installation on a threaded rod and including a lead nut, a collar, and a spring positioned between the lead nut and the collar. The lead nut has a set of tabs extending radially outward from a rear end of the body. The collar has a set of clearance slots on an inside surface. The set of clearance slots are configured for sliding of the set of tabs through the clearance slots in the rear direction. The collar has a set of ramps on an inside surface. Each of the set of ramps is configured for engagement with each of the set of tabs to prohibit axial movement of the collar in the rear direction.

IPC Classes  ?

• F16H 55/18 - Special devices for taking-up backlash
• F16H 25/24 - Elements essential to such mechanisms, e.g. screws, nuts
• F16H 25/22 - Screw mechanisms with balls, rollers, or similar members between the co-operating partsElements essential to the use of such members