Bag Roll Dispenser with Braking and Rain-Protected Guide Gap
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Solution Overview
Problem
Existing bag dispensers face issues such as uncontrolled withdrawal of bags, inability to retract excess bags, and vulnerability to rain and moisture, leading to operational inefficiencies and environmental exposure.
Innovation Solution
A dispenser design featuring a housing with a tear-off device and braking mechanism, protected from the elements by a guide gap and lip-like structure, allowing controlled bag withdrawal and easy roller replacement, while maintaining water and dirt protection.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If the dispensing gap is open to allow bag withdrawal, then bags can be dispensed from the housing, but rainwater and moisture can penetrate into the housing causing bags to adhere to the roll surface
Solution Approach 1:
A guide means with a guide gap serves as an intermediary structure between the open dispensing gap and the bag roll. The guide means channels bags through a controlled path while the housing protects the bag roll from direct moisture exposure, allowing dispensing while preventing harmful factors
2Device complexity
If no braking mechanism is provided, then the device structure is simple, but more than one bag can be pulled out uncontrollably
Solution Approach 1:
The braking mechanism is designed to engage automatically when a bag is pulled through the guide gap. The brake applies friction to the bag roll to resist unwinding, and the tear-off device automatically separates bags at predetermined break points, providing self-regulating control without complex external mechanisms
3Device complexity
If the guide gap has straight sections only, then the structure is simple, but bag guidance is not optimal causing complications during withdrawal
Solution Approach 1:
The guide gap incorporates semicircular sections at its ends instead of straight sections only. These curved sections provide optimal guidance for bags as they enter and exit the guide gap, reducing complications during withdrawal while adding minimal structural complexity
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
Ensures controlled bag dispensing, prevents accidental withdrawal, and allows for outdoor use without moisture-related issues, enhancing operational reliability and usability.
Implementation Method 1
A braking means 23 is assigned to the recess 137 in such a way that the braking means 23 lies on the interior side of the cover 21
Data Source
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AI summary
The invention relates to a bag (30) dispenser comprising a receptacle (10) inside which a supply of bags (30) is located. Said bags (30) form a supply roll (37). The dispenser further comprises a device for accommodating or mounting said roll (37) in a housing (1). The housing (1) has at least one gap (17) through which individual bags (30) can be discharged from the housing (1). One respective tearing mechanism (20) is assigned to said gap (17).