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

Drive force transmission mechanism and image forming apparatus

A transmission device and a technology for driving pulleys, which can be applied to transmission devices, electric recording technology using charge patterns, and equipment for electric recording technology using charge patterns. , The price of the pulley is higher, etc.

Inactive Publication Date: 2020-09-15
KYOCERA DOCUMENT SOLUTIONS INC
View PDF6 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In order to prevent the belt from meandering (large swing), although it is effective to provide a convex shape on at least one of the pulleys, there is a problem that the belt will be stretched due to long-term use, and the stable position of the belt will deviate from the center. Therefore, an unbalanced load acts on the belt, which adversely affects the durability of the pulley and the belt.
[0004] However, if the linear expansion coefficient is different in the width direction of the pulley, the price of the pulley will increase
In addition, when the belt is cooled, it cannot cope with the elongation of the belt due to plastic deformation caused by long-term use.

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
  • Drive force transmission mechanism and image forming apparatus
  • Drive force transmission mechanism and image forming apparatus
  • Drive force transmission mechanism and image forming apparatus

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0012] Below, while referring to the attached Figure 1 The printer 1 (an example of an image forming apparatus) and the drive transmission device 31 according to the present invention will be described.

[0013] First, refer to figure 1 , the overall configuration of the printer 1 as an image forming apparatus will be described. figure 1 It is a front view schematically showing the internal structure of the printer 1 . Next, put figure 1 The near side of the paper in the figure is the front side (front side) of the printer 1 , and the left and right directions are described based on the direction in which the printer 1 is viewed from the front. In each drawing, U, Lo, L, R, Fr, and Rr represent up, down, left, right, front, and rear, respectively.

[0014] The device main body 3 of the printer 1 is provided with: a paper feeding cassette 5 that stores paper S (an example of a sheet); a paper feeding device 7 that feeds out the paper S from the paper feeding cassette 5; A...

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

Drive force transmission mechanism and image forming apparatus. The drive force transmission mechanism includes a drive pulley, a driven pulley and an endless belt wound around the drive pulley and the driven pulley. The drive pulley and the driven pulley rotate around axes parallel to each other. At least one of the drive pulley and the driven pulley has a protruding part protruding outwardly ina radial direction around an outer circumferential face along an entire circumference. At least one axial end portion among both axial end portions of the protruding part in an axial direction of therotational axis has a radius of curvature smaller than a radius of curvature of an axial center portion of the protruding part in the axial direction. According to present invention, it is possible tostably operate belt in center of pulley, and it is possible to suppress occurrence of unbalance loading on belt.

Description

technical field [0001] The present invention relates to a drive transmission device that transmits a driving force using a belt and an image forming apparatus having the drive transmission device. Background technique [0002] In an electrophotographic image forming apparatus, a photosensitive drum is provided as an image carrier. As a device for transmitting driving force to the photosensitive drum, the usual structure is to wind a metal belt (for example, a stainless steel belt) around the driving pulley on the motor side and the driven pulley on the photosensitive drum side, but as the lowest cost and high rigidity As a structure, there is known a structure in which the belt is directly wound around the output shaft of the motor. In order to prevent the belt from meandering (large swing), although it is effective to provide a convex shape on at least one of the pulleys, there is a problem that the belt will be stretched due to long-term use, and the stable position of th...

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 Applications(China)
IPC IPC(8): G03G15/00G03G21/18
CPCG03G15/5008G03G21/186F16H55/36F16H2055/363G03G15/757G03G21/1647G03G2221/1657F16H7/18F16H7/02
Inventor 山口晃宏
Owner KYOCERA DOCUMENT SOLUTIONS INC