Printer Recording Paper Holder Reinforcement
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Solution Overview
Problem
Clamshell printers used in shop registers and ATMs face issues with the low strength of their resin-based recording paper holders, which can deform or break under the weight of the printer mechanism, leading to a demand for printers that are both high in strength and small in size.
Innovation Solution
Incorporating a metal member attached to the recording paper holder and using a metal body connecting member to reinforce the printer's structure, with a fixed blade unit on the printer body and a movable blade unit on the lid forming a cutter, while maintaining a resin material for cost reduction and ease of shaping.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Strength
If the recording paper holder is formed of resin material for cost reduction and weight reduction, then manufacturing cost and weight are reduced, but strength and structural stability deteriorate
Solution Approach 1:
The invention uses a composite structure combining resin material for the recording paper holder body with a metal member (aluminum or stainless steel) for reinforcement. This composite approach allows the holder to maintain low cost and light weight from the resin while gaining the necessary strength and rigidity from the metal reinforcement plate or frame, successfully resolving the contradiction between manufacturing cost and strength.
2Weight of moving object
If the recording paper holder is formed of resin material, then weight is reduced, but structural stability under load deteriorates
Solution Approach 1:
The resin recording paper holder is reinforced with a metal member (aluminum or stainless steel plate or frame) that provides structural stability. This composite structure maintains the light weight advantage of resin while adding minimal weight from the metal reinforcement, simultaneously achieving weight reduction and structural stability.
Solution Approach 2:
The recording paper holder is divided into functional segments: the resin body for lightweight containment and the metal reinforcement member for structural support. This segmentation allows each material to perform its optimal function - resin for weight reduction and metal for stability - resolving the contradiction between weight and structural stability.
3Strength
If the recording paper holder is formed of resin material, then cost is reduced, but resistance to deformation under load deteriorates
Solution Approach 1:
The invention reinforces the resin recording paper holder with a metal member (aluminum or stainless steel) that specifically targets deformation-prone areas. This composite structure provides high resistance to deformation where needed while keeping the overall manufacturing cost low by using resin for the majority of the holder structure, successfully balancing strength and manufacturing cost.
Data Source
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AI summary
A printer includes a printer body, a lid, a cutter, a fixed blade unit, and a movable blade unit. The printer body includes a print head, a recording paper holder in which recording paper is placed, and a metal member fixed to the recording paper holder. The lid is connected to the printer body so as to be opened and closed relative to the printer body. The cutter cuts the recording paper. The fixed blade unit is provided on the metal member of the printer body and includes a fixed blade of the cutter. The movable blade unit is provided on the lid and includes a movable blade of the cutter.