Locking Shower Arm Assembly for Heavy Showerhead Positioning

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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 movement and potential water leakage, and often allow limited rotational adjustment, compromising water-tightness.

Innovation Solution

A shower arm attachment assembly featuring a first member in fluid communication with the showerhead, a second member attachable to the shower pipe, and a locking mechanism such as a sleeve or nut that selectively engages to prevent rotation and maintain the showerhead's position, including keying features and retaining clips to secure components and prevent disassembly.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Ease of operation

If friction mechanisms are used to adjust showerhead position, then ease of operation is improved, but reliability deteriorates for heavy showerheads

Engineering Contradiction:
Improveshowerhead position adjustmentVSAvoidvertical position maintenance
Core Design Contradiction:
Ease of operationVSReliability

Solution Approach 1:

The patent transitions from static friction-based positioning to a dynamic locking mechanism. The locking member can be selectively engaged or disengaged, allowing the arm to be adjusted when unlocked and maintaining position when locked. This dynamic system provides reliable position maintenance for heavy showerheads while preserving ease of adjustment when needed.

Inventive Principle:
Principle #15Dynamics

Solution Approach 2:

The invention changes the fundamental parameter of position maintenance from friction-dependent to mechanically locked. By introducing a locking member that physically prevents movement, the system eliminates the parameter change (position drift) that occurs with friction mechanisms under heavy load, while maintaining adjustability through the unlockable nature of the locking mechanism.

Inventive Principle:
Principle #35Parameter changes

2Ease of operation

If friction mechanisms are loosened for positioning adjustment, then ease of operation is improved, but water leakage occurs

Engineering Contradiction:
Improveshowerhead repositioningVSAvoidwater leakage
Core Design Contradiction:
Ease of operationVSObject-generated harmful factors

Solution Approach 1:

The locking member creates a dynamic seal mechanism. When engaged, it maintains constant pressure on the sealing surface, preventing water leakage. When disengaged for adjustment, the locking member can be positioned to maintain sealing even during movement, eliminating the leakage problem associated with loosened friction mechanisms.

Inventive Principle:
Principle #15Dynamics

Solution Approach 2:

The locking member acts as an intermediary between the adjustment function and the sealing function. It mediates between the need for movement (adjustment) and the need for stability (sealing), allowing the system to achieve both goals without the harmful effect of water leakage that occurs with traditional friction mechanisms.

Inventive Principle:
Principle #24Intermediary (Mediator)

3Ease of manufacture

If standard coupling members are used for attachment, then ease of manufacture is improved, but adaptability deteriorates for rotational adjustment

Engineering Contradiction:
Improvecoupling member productionVSAvoidrotational adjustment range
Core Design Contradiction:
Ease of manufactureVSAdaptability or versatility

Solution Approach 1:

The coupling member incorporates a dynamic rotational adjustment mechanism with defined stops. The arm can be rotated to various positions within a limited range, then locked in place. This provides adaptability for rotational adjustment while maintaining ease of manufacture through a standardized locking mechanism similar to the vertical adjustment system.

Inventive Principle:
Principle #15Dynamics

Data Source

PatentUS10215309B2Shower arm attachment assembly
Publication Date: 2019.02.26 WATER PIK INC
  • US10215309B2 patent drawing
  • US10215309B2 patent drawing
  • US10215309B2 patent drawing

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.