Packing Tool Belt Pressing Structure with Pivot Handle

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Solution Overview

Problem

Conventional packing tools have inefficient cam rotation due to angular limitations and an awkward grip placement, leading to a loose hold on the tool, increasing the risk of accidents during operation.

Innovation Solution

A belt pressing structure with a pivotally connected handle, toothed portion, and return spring, allowing efficient operation of the belt pressing device, enabling the tool to be held firmly with one hand, and a modular design for easy assembly.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Productivity

If the cam is used to rotate the belt pressing device, then the device can be operated, but the rotation is inefficient due to angular limitation

Engineering Contradiction:
Improveoperation efficiencyVSAvoidangular limitation
Core Design Contradiction:
ProductivityVSEase of operation

Solution Approach 1:

The patent replaces the conventional cam mechanism with a gear-toothed portion engagement system. The toothed portion on the handle engages with the gear on the shaft, converting the rotational motion into efficient gear-driven rotation of the belt pressing device, eliminating the angular limitation of cam mechanisms.

Inventive Principle:
Principle #28Mechanics substitution (Replace mechanical system)

2Device complexity

If the grip end is disposed on the top of the main body, then the structure is compact, but the user cannot hold the tool firmly with one hand

Engineering Contradiction:
Improvestructural compactnessVSAvoidgrip stability
Core Design Contradiction:
Device complexityVSReliability

Solution Approach 1:

The patent repositions the grip end from the top surface to the side surface of the main body, changing the spatial dimension of the grip location. This allows the user to hold the tool firmly with one hand while the other hand operates the toothed portion, improving grip stability without significantly increasing structural complexity.

Inventive Principle:
Principle #17Another dimension (Dimensionality change)

3Ease of operation

If the user moves the hand to operate the belt pressing device, then the operation can be performed, but the main body cannot be held tightly

Engineering Contradiction:
Improveoperation accessibilityVSAvoidholding firmness
Core Design Contradiction:
Ease of operationVSReliability

Solution Approach 1:

The patent separates the operating function from the gripping function by placing the toothed portion and grip end at different locations. The toothed portion is positioned away from the grip end, allowing one hand to firmly hold the main body at the grip end while the other hand independently operates the belt pressing device via the toothed portion, eliminating the need to loosen the grip.

Inventive Principle:
Principle #1Segmentation

Applied Scientific Principles

This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.

Function Achieved in This Case

The improved design facilitates efficient and secure operation of the belt pressing device, allowing for effective belt tightening and cutting, enhancing user safety and convenience by enabling a firm grip on the tool.

Implementation Method 1

A return spring is provided in the accommodation portion. An elastic end of the return spring leans against the main body.

Methodology Applied
Scientific EffectElasticity: Elasticity

Implementation Method 2

The spring is fitted on the shaft. A fixed end of the spring is connected to the shaft. An elastic end of the spring leans against the belt pressing block.

Methodology Applied
Scientific EffectElasticity: Elasticity

Implementation Method 3

A first end of the shaft is provided with a gear. The gear meshes with the toothed portion.

Methodology Applied
Scientific EffectGear mechanism: Gear

Data Source

PatentUS10414526B2Belt pressing structure of packing tool
Publication Date: 2019.09.17 YU CHEN HSIU MAN
  • US10414526B2 patent drawing
  • US10414526B2 patent drawing
  • US10414526B2 patent drawing

AI summary

A belt pressing structure of a packing tool is provided. The packing tool includes a main body. The main body is provided with a belt pressing device, a belt winding device, and a power device. The belt pressing device includes a belt pressing seat. The belt pressing seat is pivotally connected with a handle. When in use, the user can hold the main body with one hand to lift the handle for the belt pressing device to form a passage, and a packing belt is inserted through the passage. After that, the handle is released, so that the packing belt is pressed and retained by the belt pressing device. The packing belt is tightened by using the belt winding device. Finally, the unnecessary packing belt is cut by the belt cutting device to complete the packaging operation.