Lubricant composition for sewing machine

A lubricant composition, sewing machine technology, applied in the direction of lubricating composition, sewing machine components, sewing equipment, etc., can solve the problems of not being able to achieve wear resistance, not proposed to use, etc.

Inactive Publication Date: 2005-07-20
BROTHER KOGYO KK
View PDF5 Cites 9 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In order to improve the sintering resistance, solid lubricants such as molybdenum disulfide and graphite or high-quality ceramics such as boron nitride are infiltrated into the lubricating oil to improve the lubricating performance. TBCHNOSYSTEM CO., LTD), but it cannot achieve

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Lubricant composition for sewing machine
  • Lubricant composition for sewing machine

Examples

Experimental program
Comparison scheme
Effect test

Embodiment

[0047] The present invention will be clearly described below with reference to Examples and Comparative Examples.

[0048] Using DOS as the base oil, the lubricant compositions for sewing machines shown in Table 1 were prepared. The sewing machine lubricants of Examples 1 to 4 and the lubricants of Comparative Examples 1 to 5 were used with similar figure 1 Structured sewing machine durability tester (spindle speed: 4000rpm, surface pressure: 0.4N / mm 2 , Test time: until the sintering stops), implement the durability test. The amount of lubricant injected into the bearing is about 1 cc, and the test is terminated by controlling the motor current value that rotates the spindle. When an overcurrent exceeding the specified current value occurs, the motor circuit is closed. Also, the injection of the lubricant is only in the initial stage. Table 2 shows the results of the sewing machine durability test. The evaluation criteria (standards of sewing machine manufacturers) for th...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

PUM

No PUM Login to view more

Abstract

To provide a lubricant composition for a sewing machine having excellent lubricity and to prolong the life of various kinds of sliding members. A lubricant is sealed into a clearance of a bearing surface opposite through the clearance to a sliding surface of a member to be supported which is to be supported such as a needle shaft 7 and a bearing part 8. The lubricant composition for the sewing machine is obtained by compounding a base oil of the lubricant with 0.01-10 wt.% of aluminum oxide having 100-1,000 nm particle diameter and contains 0.1-15 wt.% of one or more kinds of oil-soluble additives selected from an organometallic compound, a boron compound, a phosphorus compound and a sulfur compound. The lubricant composition for the sewing machine may be a grease containing a thickener in addition to the oil-soluble additives. In this case, the amount of the thickener is preferably 10-20 wt.% and the thickener preferably has thixotropy.

Description

technical field [0001] The present invention relates to sewing machine devices using a lubricant composition suitable as a lubricant for sewing machines. Background technique [0002] For the lubrication of the sewing machine device, the user generally adopts the structure of injecting lubricating oil or supplying lubricating oil through a felt containing a soaking agent. The lubricating oil used is almost all vegetable oil or mineral oil, regardless of its durability. Therefore, oiling or maintenance must be performed in short intervals. [0003] As existing documents related to the present invention, there are the following documents: [0004] [Patent Document 1] JP-A-10-113490 [0005] [Patent Document 2] JP-A-2002-45587 [0006] [Patent Document 3] JP-A-8-155173 [0007] [Patent Document 4] JP-A-2001-172658 [0008] The aforementioned Patent Documents 1 and 2 inject commercially available grease into the sliding parts in relative motion for the purpose of reducing ...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

Application Information

Patent Timeline
no application Login to view more
IPC IPC(8): D05B71/00C10M103/06C10M105/02C10M105/36C10M107/02C10M117/02C10M117/04C10M125/26C10M135/04C10M135/06C10M135/18C10M135/20C10M137/02C10M137/04C10M137/08C10M137/10C10M139/00C10M169/02C10M169/04C10N10/02C10N10/04C10N10/06C10N10/12C10N20/06C10N30/06C10N40/06C10N50/10C10N80/00
Inventor 长野克己北村哲弥青木彦治金田英树
Owner BROTHER KOGYO KK
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap