Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Chain saw, electric tool and control method of electric tool

A technology for electric tools and chainsaws, applied in chainsaws, manufacturing tools, cutting tools, etc., can solve problems such as safety accidents, inability to adjust power tools in time, etc., to avoid safety accidents, reduce vibration interference, and quickly brake. Effect

Active Publication Date: 2020-06-05
NANJING CHERVON IND
View PDF14 Cites 9 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, due to the inability to know when the kickback occurs, the operator cannot adjust the power tool in time (for example, stop the power tool), which may lead to safety accidents

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
  • Chain saw, electric tool and control method of electric tool
  • Chain saw, electric tool and control method of electric tool
  • Chain saw, electric tool and control method of electric tool

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0032] The present invention will be specifically introduced below in conjunction with the accompanying drawings and specific embodiments.

[0033] The power tools 10 of the present invention include but are not limited to screwdrivers, electric drills, angle grinders, curves, pruners, chain saws and other power tools that can recoil, as long as these power tools 10 can adopt the essence of the technical solutions disclosed below It can fall within the protection scope of the present invention.

[0034] As an embodiment, the power tool 10 takes a chainsaw as an example. The power tool 10 includes a working part and a main body. The working part includes a guide plate and a saw chain. The main body includes a housing. working parts.

[0035] refer to figure 1 with figure 2 The power tool 10 includes a housing 11 , a front handle 12 and a main handle 13 disposed on the housing 11 , a switch trigger 14 disposed on the main handle 13 , working parts 15 and a power supply devic...

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 discloses a chain saw and an electric tool. The chain saw includes a working part, a tool body, a brushless motor, a drive circuit, a controller and a motion detection device. The motiondetection device is connected with the tool body or the working part in a linkage mode for detecting the movement change of the tool body or the working part in at least one direction; and the controller is configured to control the drive circuit to enable the brushless motor to enter a braking process when the motion detection device detects that the change amount of movement of the tool body orthe working part in at least one direction exceeds a preset threshold value. The invention further provides a control method of the electric tool. The chain saw and the electric tool are simple in implementation method of recoil detection, simple in data processing, small in vibration interference and more accurate in detection; and meanwhile, quick braking can be realized faster, so that safetyaccidents caused by recoil can be effectively avoided.

Description

technical field [0001] The invention relates to the field of electric tools, in particular to a safe chain saw capable of detecting the occurrence of recoil and quickly braking after detecting the recoil, the electric tool and a control method thereof. Background technique [0002] At present, electric tools are widely used in households, gardens and other fields, and brushless motors are more and more applied to electric tools due to their large torque and high power, so as to meet the needs of users for energy-efficient electric tools. . Especially electric garden tools, such as chain saws, chain saws are a kind of garden tools that drive the interlaced L-shaped blades on the saw chain to move laterally through a power device to cut wood or branches. When the chainsaw is in normal operation, when the teeth are stuck in the object being sawed, the continuous rotation of the motor will cause the chainsaw to swing upwards, causing the chainsaw to reverse in the direction of ...

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): A01G3/08B27B17/00B27B17/08G01B21/22G01P3/00
CPCB27B17/083B27B17/00A01G3/086G01P3/00G01B21/22
Inventor 赵金标王宏伟
Owner NANJING CHERVON IND
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com