Washing Nozzle Motion Path for Compact Bidet Housing
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing sanitary washing apparatuses for western-style sit-down toilets face challenges in achieving a compact design while ensuring the washing nozzle does not contact the user's rear, maintaining stable advancement, and providing a wide washing range with a low storage height.
Innovation Solution
The washing nozzle changes its orientation from a stored state to an advanced state by transitioning to a greater angle with respect to the horizontal plane, utilizing a curved and straight-line path to avoid contact with the user's rear, and is guided by a path guide to ensure consistent movement and stability.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the washing nozzle is stored inside the casing at a prescribed angle to avoid contacting the user's rear, then the washing function is reliable, but the storage height of the casing increases
Solution Approach 1:
The washing nozzle is designed to dynamically change its orientation angle during advancement. In the stored state, it maintains a smaller angle (first angle) to reduce storage height, and during advancement, it transitions to a larger angle (second angle) to ensure reliable washing function and avoid contacting the user's rear. This dynamic angle adjustment resolves the contradiction between compact storage and reliable operation.
Solution Approach 2:
The orientation angle parameter of the washing nozzle is changed between two states: a first angle when stored in the casing and a second angle when advancing. This parameter change allows the nozzle to fit in a compact storage space while maintaining the necessary clearance from the user's rear during operation, thus reducing casing storage height without compromising washing reliability.
2Length of stationary object
If the washing nozzle changes orientation during advancement, then the storage height is reduced, but the drive force transmission stability may be affected
Solution Approach 1:
A transmission mechanism acts as an intermediary between the drive unit and the washing nozzle. This transmission mechanism is designed to accommodate and compensate for the angle change of the washing nozzle during advancement, ensuring that drive force is transmitted stably without being affected by the orientation change. The transmission mechanism absorbs the angular variation while maintaining consistent drive force transmission.
3Reliability
If the washing nozzle advances with a constant angle, then the drive force transmission is stable, but the nozzle may contact the user's rear
Solution Approach 1:
The washing nozzle dynamically adjusts its orientation angle during advancement, transitioning from a smaller first angle in the stored state to a larger second angle during advancement. This dynamic angle change ensures that the nozzle maintains sufficient clearance from the user's rear while advancing, eliminating the harmful contact effect while still allowing for stable drive force transmission through the transmission mechanism.
Data Source
AI summary
A sanitary washing apparatus is provided according to one aspect of the invention, where the sanitary washing apparatus includes: a washing nozzle having a water discharge port, where the washing nozzle is configured to wash a body of a user by squirting water from the water discharge port; and a casing capable of storing the washing nozzle. The washing nozzle is configured to change from a stored state to an advanced state while transitioning to an orientation having a greater angle of an axis of the washing nozzle with respect to a horizontal plane, where the washing nozzle is stored in the casing in the stored state, and the washing nozzle is configured to wash the body in the advanced state.