Sewing machine rotary shaft supporting device

A technology for supporting devices and rotating shafts, which is applied in the direction of sewing machine control devices, sewing machine components, sewing equipment, etc., can solve the problems of high cost of bearings and the need for special tools, and achieve the effects of cost suppression, easy bearings, and easy installation

Active Publication Date: 2006-02-15
株式会社飞马
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] However, in the conventional rotary shaft supporting device of a sewing machine, since a pair of grooves for elastic rings must be formed on the outer ring, the cost of the bearing is high, and a special tool is required for the installation of the bearing with a jig.

Method used

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  • Sewing machine rotary shaft supporting device
  • Sewing machine rotary shaft supporting device

Examples

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Embodiment Construction

[0011] Hereinafter, specific embodiments of the present invention will be described with reference to the drawings. A frame 1 of the sewing machine M has a frame hole 2 on which a bearing 3 is provided. The inner ring 3a of the bearing 3 supports the rotary shaft 4, which rotates in one direction when the sewing machine is driven. The rotary shaft 4 has a hand wheel 4a at the right end, and the operator can operate the sewing machine through the hand wheel 4a. The outer ring 3 b of the bearing 3 is rotatably supported on the frame hole 2 of the frame 1 , and both ends thereof protrude from the frame hole 2 . The rack hole 2 is formed in the recessed portion 1a of the frame 1, and the jig 5 is provided in the recessed portion 1a.

[0012] The jig 5 is integrally formed with a mounting cover 6 covering the recessed portion 1 a of the frame 1 . The installation cover 6 is installed on the frame 1 by screws 7,7. At this time, the clamp 5 is pressed into the recess 1 a of the f...

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PUM

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Abstract

To provide the rotary shaft support device of a sewing machine, on which a bearing is easily mounted and whose cost is suppressed. In the rotary shaft support device of the sewing machine comprising a frame provided with a housing hole, the bearing supporting a rotary shaft by an inner race and inserted and fitted to the housing hole, and a fixture for fixing the outer race of the bearing to the housing hole of the frame, by projectingly providing the outer race of the bearing from the housing hole of the frame and pressurizing the fixture to the projectingly provided part of the outer race and the periphery of the housing hole, the outer race of the bearing is fixed to the housing hole of the frame.

Description

technical field [0001] The present invention relates to a rotary shaft support device of a sewing machine, and more particularly to a rotary shaft support device suitable for supporting a rotary shaft of an industrial sewing machine driven at high speed. Background technique [0002] As a conventional rotary shaft supporting device of a sewing machine, creep phenomenon of the bearing is prevented by providing a pair of elastic rings (clamps) on the outer ring of the bearing supporting the rotary shaft (for example, refer to Patent Document 1). [0003] [Patent Document 1] Publication No. 55-23649, Publication No. 55-23649 (page 1, figure 1 , 2 ) [0004] However, in conventional rotary shaft support devices for sewing machines, since a pair of grooves for elastic rings must be formed on the outer ring, the cost of the bearings is high, and special tools are required for mounting the bearings with jigs. Furthermore, in order to easily assemble the bearing, it is also neces...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D05B69/30
CPCF16C35/067F16C19/06F16C2340/00
Inventor 川上淳司
Owner 株式会社飞马
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