Shower arm attachment assembly
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Solution Overview
Problem
Standard shower arm assemblies fail to maintain the vertical position of heavy or densely constructed showerheads due to inadequate friction mechanisms, leading to undesired vertical movement and potential water leakage, and often require adjustments that can result in disassembly and safety hazards.
Innovation Solution
The shower arm attachment assembly incorporates a locking sleeve or nut system that selectively engages with keying features to prevent rotation and maintain the position of the showerhead, using a combination of splines, grooves, and retaining elements to secure the arm relative to the shower pipe, thereby preventing disassembly and ensuring water-tight seals.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If friction mechanisms are adjusted to permit positioning of the showerhead, then the showerhead can be positioned at desired vertical location and orientation, but water leaks through the loosened joints
Solution Approach 1:
The coupling assembly is divided into separate functional components: a coupling member with keying features for positioning, and a separate locking mechanism (locking nut or set screw) that secures the position without compromising the seal. This segmentation allows the positioning function to be independent from the sealing function.
Solution Approach 2:
A locking mechanism acts as an intermediary between the positioning requirement and the sealing requirement. The locking nut or set screw provides the necessary constraint to maintain position while the separate seal element maintains water-tightness, mediating between the two conflicting requirements.
2Weight of moving object
If standard friction mechanisms are used to prevent vertical showerhead movement, then light showerheads can be maintained in desired position, but heavy or densely constructed showerheads cannot be secured
Solution Approach 1:
The coupling member includes pre-formed keying features (protrusions or splines) that engage with corresponding recesses in the arm assembly before the showerhead weight is applied. This preliminary mechanical engagement prepares the structure to handle heavy loads without relying on friction alone.
Solution Approach 2:
The keying features use geometric shapes (protrusions, splines, or interlocking forms) that provide mechanical advantage and distribute the load from heavy showerheads across multiple contact points, rather than relying on a single friction interface.
3Adaptability or versatility
If coupling members permit rotational adjustment of the arm around the shower pipe, then positioning flexibility is improved, but water-tightness between the shower pipe and coupling member is compromised
Solution Approach 1:
The coupling assembly separates the rotational adjustment function from the sealing function. The coupling member allows rotation during installation and positioning, while a separate seal element (gasket or O-ring) maintains water-tightness throughout the range of motion.
Solution Approach 2:
The coupling mechanism transitions from a static sealed connection to a dynamic adjustable connection during installation, then returns to a stable locked position. The sealing mechanism remains effective throughout this dynamic process, allowing rotation when needed but maintaining water-tightness when positioned.
Data Source
AI summary
A shower arm attachment assembly including an arm coupling member, a shower pipe coupling member, and a locking member. The arm coupling member may fluidly connect to a shower arm for a showerhead and the shower pipe coupling member may fluidly connect to a shower pipe. The arm coupling member connects to the shower pipe coupling member and is selectively rotatably relative thereto. The locking member selectively controls rotation of the arm coupling member relative to the shower pipe coupling member.