Pull-Back Carpet Cleaner with Raiseable Suction Mouth
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Solution Overview
Problem
Current moquette carpet cleaning machines in pull-back mode require operators to manually balance and push the machine forward, making the process labor-intensive and limiting the ability to perform pre-brushing without dedicated machinery.
Innovation Solution
Incorporating an auxiliary wheel with movable support means that allows the machine to transition between a washing configuration with the suction mouth in contact with the carpet and a raised configuration for easier forward movement, enabling the machine to rest on both main and auxiliary wheels, reducing operator effort and allowing pre-brushing.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If the suction mouth contacts the moquette carpet during forward movement, then cleaning is maintained, but the machine cannot be easily pushed forward without manual balancing
Solution Approach 1:
The front section with the suction mouth is designed to be dynamically adjustable between contact and non-contact positions with the carpet. During forward movement between cleaning zones, the front section is raised to allow easy pushing without manual balancing. During cleaning operation, the front section is lowered to maintain suction contact, ensuring cleaning continuity while eliminating the operational contradiction.
2Ease of operation
If the machine is designed for pull-back mode only, then cleaning effectiveness is improved, but the machine cannot perform pre-brushing without dedicated machinery
Solution Approach 1:
The machine is designed with multi-functionality to perform both pre-brushing and cleaning operations. The front section can be raised during pre-brushing to allow brush contact with the carpet without obstruction from the suction mouth. The same machine then performs cleaning by lowering the front section for suction contact. This eliminates the need for dedicated pre-brushing machinery while maintaining cleaning effectiveness.
Data Source
Figure 1~2
Figure 3
AI summary
The present invention refers to a moquette carpet cleaning machine (10) operable in pull-back mode comprising a machine body (11) provided with main rear wheels (12) and a suction mouth (14) placed at the front and is characterised in that support means (19) are constrained to the machine (10), on which support means (19) at least one auxiliary wheel (16) is mounted, and in that at least one from among the main wheels (12), suction mouth (14), the at least one auxiliary wheel (16) and support means (19) are movable means with respect to the machine body (11), between at least a first (A) and at least a second (B) relative position such that, when the movable means (12,14,19,16) are in the first relative position (A), the suction mouth (14) is maintained adherent to the ground (20), and when the movable means (12,14,19,16) are in the second relative position (B), the suction mouth (14) is maintained substantially raised from the ground (20).