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

Cutting tool with variable pivot system

A technology of cutting tools and pivot points, applied in the field of hand-operated cutting tools, can solve the problem of increased force of cutting objects

Active Publication Date: 2018-10-02
OY FISKARS AB
View PDF6 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

As the arm is abducted and the elbow is straightened, the lateral adduction force decreases, which tends to result in a change in the force available from the user, where the force required to cut an object increases

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
  • Cutting tool with variable pivot system
  • Cutting tool with variable pivot system
  • Cutting tool with variable pivot system

Examples

Experimental program
Comparison scheme
Effect test

Embodiment approach

[0048] Since the first region of the cutting stroke corresponds to the "least resistance" encountered in cutting the object (ie, relatively little force is required), a variable sliding portion of the pivot system is used. Therefore, the sliding portion of the variable pivot system has a relatively lower mechanical advantage compared to the gearing portion because the sliding portion has no mechanism for mechanical advantage (i.e., the gearing portion utilizes meshable gears to increase the mechanical advantage, but the sliding part has no such mechanism). Rather, the mechanical advantage of the sliding portion is provided by the length of the handle and the single pivot mechanism. However, during the second region of the cutting stroke (i.e., approximately the last two-thirds of the cutting stroke), where greater resistance is encountered while cutting an object, the geared portion of the variable pivot system engages to provide Increased mechanical benefit. Because the gea...

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

A hand operated cutting tool (100) includes a first cutting member (120); a first handle (110) including a second cutting member (130), wherein the second cutting member is coupled to the first cutting member and includes a first set of projections (160); and a second handle (112) including a lever, wherein the lever is coupled to the first cutting member and includes a second set of projections (170). The first and second handles are movable between a full open position and a full closed position, wherein during a first region of travel proximate the full open position the first and second set of projections are disengaged, and during a second region of travel proximate the full closed position the first and second set of projections are at least partly engaged.

Description

[0001] Cross References to Related Applications [0002] This application claims the benefit of U.S. Patent Application No. 14 / 538,130, entitled "A CUTTING TOOL WITH A VARIABLEPIVOT SYSTEM," filed November 11, 2014, which U.S. Patent Application claims priority to U.S. Provisional Patent Application No. 61 / 906,754, entitled "A CUTTING TOOL WITH A VARIABLEPIVOT SYSTEM," filed November 20, 2013, two The application is hereby incorporated by reference in its entirety. technical field [0003] The present invention relates to hand operated cutting tools. More specifically, the present invention relates to hand-operated cutting tools having a variable pivot system. Background technique [0004] This section is intended to provide a background or context to the disclosure that is recited in the claims. The description herein may include concepts that may be pursued, but not necessarily concepts that have been previously conceived or pursued. Therefore, unless otherwise indica...

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 Patents(China)
IPC IPC(8): A01G3/025A01G3/02
CPCA01G3/021A01G3/0251Y10T83/04A01G3/02A01G3/025B26B13/26B26B17/02
Inventor 丹尼尔·坎宁安
Owner OY FISKARS AB