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

Telescoping compasses

A compass and compass head technology, applied in the field of office supplies, can solve problems such as difficult operation, crooked drawing, uneven force, etc., and achieve the effect of convenient operation

Inactive Publication Date: 2016-04-13
SUZHOU QIYANG IND & TRADE
View PDF5 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] However, when using ordinary compasses to draw a circle, you need to hold the head of the compass to rotate and drive the head of the compass to draw a small circle. It is not easy to operate, and it is easy to cause uneven force and crooked drawing.

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
  • Telescoping compasses

Examples

Experimental program
Comparison scheme
Effect test

Embodiment

[0015] like figure 1 As shown, the telescopic compass of the present embodiment comprises a compass head 1, a fixed foot 2 and a rotating foot 3, one end of the fixed foot 2 is fixed on the compass head 1, and one end of the rotating foot 3 is hinged on the compass head 1, and the fixed foot 2 is retractable and is provided with a limiting device, and the other end of the rotating foot 3 is provided with a lead core 31 .

[0016] The fixed foot 2 is divided into two parts, an upper part and a lower part, the upper part is hollow, one end of the lower part is inserted in the upper part, and a stop nut 21 is provided at the lower end of the upper part. The other end of the rotating foot 3 is provided with a clamp, one side of the clamp is provided with a clamping nut 32, and the lead core 31 is clamped on the clamp. The compass head 1 and the fixed foot 2 are located on the same straight line.

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 relates to a pair of telescoping compasses. The telescoping compasses comprise a compass head, a fixing foot and a rotating foot, wherein one end of the fixing foot is fixed on the compass head, and one end of the rotating foot is hinged to the compass head; the fixing foot is telescoping and is provided with a limiting device; a pencil lead is arranged at the other end of the rotating foot. The compasses are easy to operate.

Description

technical field [0001] The invention relates to a compass and belongs to the technical field of office supplies. Background technique [0002] In mathematics and drawing, a compass is a tool used to draw a circle or a chord, and is often used for drawing with a ruler. The compass is usually made of metal, with two feet, the upper end is hinged, and the lower end can be separated or closed at will to adjust the radius of the arc drawn. The end of one foot is a needle point, and the end of the other foot can be Load pencil or ink lines. [0003] But when using ordinary compasses to draw a circle, you need to hold the compass head to rotate and drive the compass head to draw a small circle, which is not easy to operate, and it is easy to cause uneven force and crooked drawing. Contents of the invention [0004] The technical problem to be solved by the invention is to propose an easy-to-operate compass aiming at the deficiencies of the prior art. [0005] The technical sol...

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): B43L9/02
CPCB43L9/02
Inventor 姚多妹林燕
Owner SUZHOU QIYANG IND & TRADE