Shower Fluid Diverter With Bidirectional Spray Switching
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Solution Overview
Problem
Existing fluid switching devices for sanitary water outlet fittings, such as showers, require a large number of switching operations to change between multiple operating positions, making them cumbersome and inefficient, especially when trying to switch back to a previously set position.
Innovation Solution
A fluid switching device with an actuating device that allows bidirectional switching, featuring two independent operating elements for forward and reverse switching directions, reducing the number of operations needed to change between operating positions and enabling compact integration into sanitary fittings.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If a unidirectional indexing mechanism is used for switching between operating positions, then the device structure is simple, but the number of switching operations required increases significantly
Solution Approach 1:
The patent applies bidirectional indexing instead of unidirectional indexing, allowing the indexing mechanism to rotate in both clockwise and counterclockwise directions. This inversion of the conventional unidirectional approach enables the selector to reach any operating position with a maximum of three switching operations regardless of the current position, dramatically reducing the number of operations needed while maintaining mechanical simplicity
Solution Approach 2:
The patent introduces a bidirectional indexing mechanism that can dynamically switch between clockwise and counterclockwise rotation directions. The indexing mechanism includes bidirectional ratchet teeth and corresponding actuation elements that enable flexible bidirectional movement, allowing the system to adapt its switching path based on the current and desired operating positions to minimize the number of switching operations
2Ease of operation
If bidirectional switching capability is added to reduce switching operations, then the ease of operation improves, but the device complexity increases
Solution Approach 1:
The patent segments the indexing mechanism into distinct functional components: bidirectional ratchet teeth divided into first and second sets oriented in opposite directions, corresponding first and second actuating elements, and associated springs. This segmentation allows each component to have a specialized function while working together to achieve bidirectional indexing, making the complex functionality manageable and maintainable
Solution Approach 2:
The patent employs spring-loaded actuating elements that automatically return to their neutral positions after engaging the ratchet teeth. The first spring returns the first actuating element to its initial position after clockwise engagement, and the second spring returns the second actuating element after counterclockwise engagement. This self-service mechanism eliminates the need for additional reset mechanisms, reducing overall device complexity despite the bidirectional capability
3Adaptability or versatility
If multiple operating positions are provided for different spray types, then the versatility of the shower system improves, but the number of switching operations required increases
Solution Approach 1:
The patent applies bidirectional indexing to the shower spray selector, allowing users to switch between multiple spray types (at least three different operating positions) with a maximum of three operations regardless of the current position. This bidirectional capability inverts the conventional unidirectional approach, enabling users to reach any desired spray type efficiently by switching in the direction that minimizes operations, thereby reducing time loss while maintaining high versatility
Data Source
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AI summary
1. Fluid switching device and sanitary shower. 2.1. The invention relates to a fluid switching device comprising at least one fluid inlet, at least two fluid outlets, a movable switching element (3) for controlling fluid connections between the at least two fluid outlets and the at least one fluid inlet, wherein the switching element is switchable between at least three different operating positions, and an actuating device (4) designed for sequential and bidirectional switching of the switching element in both a forward switching direction and a reverse switching direction inverse to the forward switching direction, as well as to a sanitary shower equipped therewith. 2.2.According to the invention, the actuating device comprises a first actuating unit (5) for sequentially switching the changeover element in the forward switching direction and a second actuating unit (6) for sequentially switching the changeover element in the reverse switching direction, wherein the two actuating units include independently operable user-operated control elements (7, 8). 2.3. Use e.g. in sanitary engineering.