Protective Tape Dispenser with Pivotable Blade Holder
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Solution Overview
Problem
Conventional tape dispensers require excessive force to cut protective tape and fail to align it properly with the edge of the product, leading to incomplete protection and unsightly application.
Innovation Solution
A protective tape dispenser with a base, mounting unit, handle, guide unit, cutting unit, and tape pressing unit, featuring a pivotable blade holder and elastic members to increase tension and facilitate easy cutting, while a guide plate ensures proper alignment with the product edge.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Force
If a conventional tape dispenser uses a fixed blade holder, then the structure is simple, but excessive force is required to cut the protective tape
Solution Approach 1:
The blade holder is designed to be movable rather than fixed, allowing it to pivot along the positioning member. This dynamic structure enables the blade to extend forward during cutting to increase leverage and reduce the force required, then retract afterward. The pivot member and elastic member work together to provide the necessary motion and return force.
2Manufacturing precision
If a conventional tape dispenser lacks a guide unit, then the device complexity is low, but the protective tape cannot be aligned with the edge of the article
Solution Approach 1:
A guide unit is introduced as an intermediary component between the tape dispensing mechanism and the article edge. The guide plate provides a physical reference surface that guides the tape to align precisely with the article edge, ensuring complete protection and neat appearance while adding minimal complexity to the overall device.
3Ease of operation
If the blade holder is movable along the positioning member, then cutting requires less force, but the device complexity increases
Solution Approach 1:
The blade holder mechanism is designed to be self-actuating through the interaction of the pivot member and elastic member. When cutting force is applied, the blade holder automatically pivots forward to extend the blade for cutting. After cutting, the elastic member automatically returns the blade holder to its retracted position without requiring additional actuation, making the mechanism self-service and easy to operate.
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
Enables smooth operation, complete protection, and increased aesthetics by allowing easy force application and precise alignment of the tape, enhancing labor-saving efficiency and cutting ease.
Implementation Method 1
A free end of the linking portion is connected to one end of an elastic member. Another end of the elastic member is fixed to the base.
Implementation Method 2
The blade holder is movable along the positioning member.
Data Source
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AI summary
A protective tape dispenser includes a mounting unit, a handle, a guide unit and a cutting unit. The guide unit has a tape pressing member and a turning member. The tape pressing member is located between the mounting unit and the turning member. The cutting unit includes an operation member and a fixing seat. One side of the fixing seat is provided with a blade holder. The tape pressing member and the turning member are configured to increase the tension of the protective tape and facilitate cutting. By pressing the operation member, the operation member drives a linking member to actuate the blade holder so as to extend or retract a blade, thereby increasing the smoothness of operation and achieving the purposes of labor-saving operation and easy force application.