Bath scrubber with handle
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Solution Overview
Problem
Conventional bath scrubbers with handles are inconvenient for scrubbing backs and feet, prone to sliding, and often scratch the user's skin, with limited multifaceted cleaning capabilities.
Innovation Solution
A bath scrubber design featuring an elongated handle with positioning structures and anti-slip portions that securely fix multiple scrubbing members on both sides, preventing sliding and providing a smooth, non-scratch cleaning experience.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If protruding rods are inserted into the bath ball to fix it to the handle, then the bath ball is secured to prevent excessive shaking, but the protruding rods can scratch the user's skin and may pull the bath ball to cause damage
Solution Approach 1:
The harmful protruding rods are completely removed from the design. Instead, the patent uses a smooth cylindrical handle with a through-hole that accepts a tightening member, eliminating the skin-contacting protrusions while maintaining fixing functionality through the tightening member that passes through both the handle and scrubbing member.
Solution Approach 2:
A tightening member acts as an intermediary element between the handle and the scrubbing member. This mediator provides the fixing function without requiring direct contact between protruding rods and the scrubbing member, thereby preventing skin scratching while maintaining reliable attachment.
2Device complexity
If a single bath ball is fixed on one side of the handle, then the structure is simple, but it cannot provide multifaceted cleaning effect
Solution Approach 1:
The handle is designed with universal functionality to accommodate multiple scrubbing members on different sides. The through-hole structure and positioning structures can secure various types of scrubbing members (bath balls, sponges, brushes) on both sides of the handle, enabling multifaceted cleaning while maintaining relatively simple structure.
Solution Approach 2:
The design transitions from single-sided to multi-sided attachment by utilizing the spatial dimension around the cylindrical handle. Positioning structures are arranged to enable attachment of scrubbing members at different angular positions around the handle, expanding cleaning coverage from one side to multiple sides.
3Ease of manufacture
If a long handle with assembly part and assembly clip is used to clamp the bath ball, then assembly is simple, but the structure is complicated to fabricate and expensive
Solution Approach 1:
The complex assembly clip and assembly part structures are removed. The patent simplifies the design to a cylindrical handle with a through-hole that directly receives the tightening member, eliminating the need for separate assembly clips and reducing fabrication complexity while maintaining ease of assembly.
Solution Approach 2:
Instead of using a clip that clamps from the outside, the design inverts the approach by using a tightening member that passes through the handle and scrubbing member from end to end, securing them together through penetration rather than clamping. This simplifies the structure while maintaining assembly ease.
4Reliability
If the scrubbing member is fixed tightly to the handle, then sliding is prevented, but the fixing structure becomes more complex
Solution Approach 1:
The fixing function is segmented into two independent components: the through-hole in the handle provides positioning and alignment, while the tightening member provides securing force. This segmentation prevents sliding through simple structural elements rather than complex integrated mechanisms.
Solution Approach 2:
The tightening member serves dual functions: it passes through the handle's through-hole for positioning and simultaneously secures the scrubbing member to the handle. This self-service approach prevents sliding without requiring additional complex fixing structures.
Data Source
AI summary
A bath scrubber includes an elongated handle, a scrubbing member, and a tightening member. The handle has a positioning structure at one end thereof, a first side and a second side opposite to the first side. The positioning structure includes a first position-limiting hole and a second position-limiting hole run through the first side and the second side, and a first anti-slip portion located between the first and second position-limiting holes. The first and second position-limiting holes and the first anti-slip portion are arranged on an axis. The tightening member is fastened to the scrubbing member and inserted through the first and second position-limiting holes to fix the scrubbing member on the handle and to make the scrubbing member engage in the first anti-slip portion.