Unlock instant, AI-driven research and patent intelligence for your innovation.

Bearing structure for sewing machine and sewing machine

A sewing machine and bearing technology, which is applied in the field of sewing machines, can solve the problems of reducing the amount of grease retained, the quality of grease deteriorating, and the lubricity of grease falling

Inactive Publication Date: 2012-05-30
BROTHER KOGYO KK
View PDF4 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

As a result, when the amount of garbage accumulated in these grease holding parts and annular grooves increases, not only will the amount of grease held be reduced, but also the quality of the grease will be deteriorated, the lubricity of the grease will be reduced, and sintering will occur. The problem

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
  • Bearing structure for sewing machine and sewing machine
  • Bearing structure for sewing machine and sewing machine
  • Bearing structure for sewing machine and sewing machine

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0024] Figure 1 ~ Figure 4 Example 1 in which the present invention is applied to an electronic sewing machine is shown. Such as figure 1 As shown, the electronic sewing machine 1 has a bottom plate 2 , a column 3 erected on the right end of the bottom plate 2 , and a casing 4 protruding from the upper end of the column 3 extending leftward. Inside the bottom plate portion 2, although not shown, a sewing machine main shaft 6 (refer to image 3 ) synchronously rotating hook shaft (lower shaft) and loop catcher such as hook driven by the hook shaft.

[0025] The main shaft 6 of the sewing machine is arranged in the casing part 4 along the left-right direction, and is rotatably supported by a plurality of bearing members provided on the machine frame F ( image 3 Only one bearing member 6a) is shown in the figure. A needle bar vertical movement mechanism 10 is disposed in the head portion 5 of the housing portion 4, and the needle bar vertical movement mechanism 10 converts...

Embodiment 2

[0043] Such as Figure 5 As shown, the bearing structure 21A is additionally provided with a garbage storage groove 14f near the upper outer end of the needle bar bearing member 14A. That is, in the vicinity of the upper end of the needle bar bearing member 14A (corresponding to the vicinity of the outer end of the other end side of the bearing member), there are respectively provided with the garbage storage tank 14c, the filling port 14d, the discharge port 14e, The same as the bolts 22, 23, the garbage storage groove 14f formed parallel to the surface perpendicular to the axis of the needle bar 11, the filling port 14g, the discharge port 14h, and the bolts 22, 23 are filled with grease G in the garbage storage groove 14f.

[0044] Because the bearing structure 21A adopts the above structure, the needle bar 11 produces the same effect as the previous embodiment when it moves upward. When the needle bar 11 moves downward, the dust such as fine thread ends and fiber cloth sc...

Embodiment 3

[0047] Such as Figure 6 As shown, the bearing structure 21B is provided in the vicinity of the lower end of the needle bar bearing member 14B at a position below the grease housing recess 14b. That is, in the vicinity of the lower end of the needle bar bearing member 14B, the same annular garbage storage tanks as the garbage storage tank 14c, the filling port 14d, the discharge port 14e, and the bolts 22, 23 provided in the first embodiment are respectively provided. 14i, filling port 14j, discharge port 14k, bolts 22, 23. Grease G is filled in the garbage storage tank 14i, and the filling port 14j and the discharge port 14k are closed with bolts 22 and 23, respectively. The garbage storage groove 14i is formed parallel to the annular tapered surface that is farther away from the grease storage recess 14b as it gets closer to the sliding surface 14a.

[0048] Because the bearing structure 21B adopts the above structure, so it is the same as the aforementioned embodiment 1, ...

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

The bearing structure for sewing machine of the present invention is supported and arranged to be a sliding shaft with reciprocating moving by bearing member in a reciprocating sliding fashion in a driving system of a sewing machine forming thread track on the processing cloth. The bearing structure for sewing machine comprises an annular lubricant receiving recess arranged on the sliding surfaceof the bearing member for filling lubricant; an annular rubbish receiving groove formed on the position outside of the lubricant receiving recess of the bearing member or on the annular member capable of being loaded and unloaded relative to the bearing member; and lubricant filled in the rubbish receiving groove.

Description

technical field [0001] The present invention relates to a bearing structure of a sewing machine in which a reciprocating slide shaft is supported by a bearing member using a lubricant such as grease, and a sewing machine having the bearing structure. Background technique [0002] Generally, in conventional mechanical drive systems, when a sliding shaft that reciprocates is slidably supported by a bearing member, the sliding shaft can slide smoothly by using a lubricant such as grease between the sliding shaft and the bearing member. , to prevent sintering of the sliding shaft. In particular, in industrial sewing machines and household sewing machines, grease is used as a lubricant used on a bearing sliding surface that slidably supports a needle bar that moves up and down at high speed in order to promote the goal of oil-free. [0003] For example, Japanese Patent Laid-Open Application Publication No. 2002-45587 (pages 3-4, figure 2 ) The sliding device for a sewing machin...

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
Patent Type & Authority Patents(China)
IPC IPC(8): D05B71/00F16C29/00
Inventor 川岛义人金田英树
Owner BROTHER KOGYO KK