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

Eraser

A technology in the field of erasers, applied in the field of erasers, can solve the problems of difficult locking of parts and complex structure of erasers, etc., and achieve the effect of low cost, simple structure, and fewer production parts

Pending Publication Date: 2020-11-24
冯文达
View PDF6 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] Prior art WO/2019/112637, JP2018-114758A, CN209649856U, CN202541134U, CN281101

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
  • Eraser

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0008] refer to figure 1 As shown, the upper end of the necking shell 3 has an internal thread and the lower end forms a contraction cone, and the upper end of the tightening pipe clamp 2 has an external thread and the outer wall of the slotted chuck at the lower end forms a cone. There is a movable gap between the inner diameter of the necking shell 3 and the outer diameter of the tightened pipe clamp 2 , and there is a movable gap between the inner diameter of the tightened pipe clamp 2 and the outer diameter of the strip rubber 1 . When using the eraser, reversely twist and tighten the upper part of the pipe clamp 2, the outer wall cone of the spirally rising slit chuck is out of close contact with the inner wall cone of the necking shell 3, and the loosened strip rubber 1 exposes the necking shell 3 , and then twist and tighten the tube clamp 2 to re-lock the strip eraser 1, the plastic rod pen combined with the eraser is more convenient to use.

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 invention provides an eraser in the field of stationery. The eraser comprises a screwing pipe clamp with threads and a necking shell. The eraser is characterized in that the taper of the outer wall of the front end of a straight-through slotting chuck of the screwing pipe clamp is larger than that of the inner wall of the front end of the necking shell. The eraser has the advantages that a simplified eraser locking mechanism is more reliable, flexible and convenient.

Description

technical field [0001] The invention relates to an eraser in the field of stationery. Background technique [0002] In the prior art WO / 2019 / 112637, JP2018-114758A, CN209649856U, CN202541134U, CN2811012Y, CN2423116Y, the eraser has many complex parts and is difficult to lock the eraser. Contents of the invention [0003] The technical problem to be solved by the present invention is: the simplified structure of the eraser reduces the manufacturing cost and avoids the sliding of the eraser to ensure that the locking mechanism is reliable and easy to use. [0004] The technical solution of the present invention is: the eraser includes a threaded tightening pipe clamp and a shrinking shell, and the feature is that the taper of the front end outer wall of the straight through slot chuck of the tightening pipe clamp is greater than the taper of the front end inner wall of the shrinking shell. [0005] The beneficial effect of the present invention is: the eraser with omitted e...

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): B43L19/00
CPCB43L19/00B43L19/0068
Inventor 冯文达兰天擎
Owner 冯文达