Cash Box Closing Unit With Plate-Shaped Shutter for Low-Friction Opening
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Solution Overview
Problem
Existing cash box mechanisms with jalousie-shaped shutters face issues with reliable and comfortable opening and closing due to large radius paths, leading to potential sticking and uncomfortable handling.
Innovation Solution
A cash box design featuring a jalousie part and a plate-shaped part with engaging elements that reduce friction and facilitate easy movement, ensuring reliable engagement and automatic opening and closing, utilizing a first engaging element for opening and a third pivotable engaging element for closing, supported by a biasing element like a torsion spring.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the shutter is moved along a path with a relatively large radius to ensure safe engagement between the cavity and the protrusion, then reliable opening and closing of the shutter is achieved, but the shutter can easily get stuck which causes uncomfortable handling
Solution Approach 1:
The patent changes the closing unit from a fixed jalousie-shaped shutter to a dynamic plate-shaped structure that can pivot and translate along a predetermined path. This dynamic movement allows the closing unit to smoothly transition between open and closed positions while maintaining reliable engagement through the first engaging element, eliminating the sticking issues of the traditional shutter mechanism.
Solution Approach 2:
The patent modifies the geometric parameters of the closing unit by replacing the jalousie-shaped design with a plate-shaped configuration. This parameter change includes altering the shape, size, and movement path of the closing unit, which reduces friction during operation and prevents sticking while maintaining reliable engagement through the engaging elements.
2Adaptability or versatility
If a jalousie-shaped shutter is used to close the opening, then the shutter can be moved to open and close positions, but the friction between the shutter and guide elements is high requiring significant force to move
Solution Approach 1:
The patent changes the physical parameters of the closing unit by replacing the jalousie-shaped shutter with a plate-shaped closing unit. This parameter change includes modifying the shape, surface area, and contact characteristics of the closing unit, which significantly reduces friction with the guide elements and allows easy movement with minimal force.
Solution Approach 2:
The patent extracts the essential functionality of the jalousie shutter (opening and closing) while removing the problematic jalousie structure itself. The plate-shaped closing unit provides the same opening and closing functionality but with reduced friction and improved ease of operation.
3Ease of operation
If the closing unit is made plate-shaped with engaging elements, then friction is reduced and handling is eased, but the structure becomes more complex compared to traditional shutters
Solution Approach 1:
The patent combines multiple functions into the plate-shaped closing unit: it serves as both the closing element and the engagement mechanism. The first engaging element is integrated directly onto the plate-shaped closing unit, merging the closing function and the engagement function into a single integrated component, which simplifies the overall structure despite the changed geometry.
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 comfortable and reliable handling of cash boxes with reduced force requirements for opening and closing, ensuring automatic operation and preventing manual oversight of opening.
Implementation Method 1
supported by a biasing element like a torsion spring
Data Source
AI summary
The invention relates to a cash box (10) which comprises a housing (12) with an opening (16) for supplying notes of value to a storing compartment for storing notes of value and/or for removing notes of value from the storing compartment. Moreover, the cash box (10) has a closing unit (18) that comprises a jalousie part (32) and a plate-shaped part (34). The plate-shaped part (34) has a first engaging element (38) which is shaped in such a manner that, when the cash box (10) is being inserted in a device (102) for handling notes of value, the first engaging element (38) engages with the second engaging element (126) of the device (102) so that the closing unit is moved from a closing position to an open position. Moreover, the invention relates to a device (102) for handling notes of value.