Extendable Boat Sun Pad Seat With Hidden Sliding Section

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Solution Overview

Problem

Existing sun pads on boats are often fixed in size and location, occupying substantial deck space when not in use and inadequate for taller individuals.

Innovation Solution

An extendable sun pad seat that transitions between a retracted and extended position, utilizing a hidden portion beneath a stationary rest to increase seating surface when needed, with a sliding rail system for movement.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Length of moving object

If the sun pad is made extendable to provide a longer lounging surface, then the seating comfort for taller individuals is improved, but the device complexity increases

Engineering Contradiction:
Improvelounging surface lengthVSAvoidmechanism complexity
Core Design Contradiction:
Length of moving objectVSDevice complexity

Solution Approach 1:

The sun pad incorporates a hidden portion that nests within the visible portion when retracted. The hidden portion is stored within the structure of the visible portion, allowing the sun pad to collapse into a compact form that fits within the existing sun pad footprint, thereby extending length when needed without permanently occupying additional space

Inventive Principle:
Principle #7Nested doll (Nesting)

Solution Approach 2:

The sun pad transitions from a static fixed-size design to a dynamic extendable structure. The sun pad includes a visible portion and a hidden portion that can be moved between retracted and extended positions, allowing the lounging surface length to change based on user needs while maintaining a compact form when not in use

Inventive Principle:
Principle #15Dynamics

2Area of moving object

If the sun pad is extended to provide more seating surface, then the seating capacity is improved, but the deck space utilization worsens

Engineering Contradiction:
Improveseating surface areaVSAvoiddeck space occupation
Core Design Contradiction:
Area of moving objectVSArea of stationary object

Solution Approach 1:

The hidden portion of the sun pad nests within the visible portion when retracted, allowing the entire sun pad assembly to occupy a compact footprint on the deck. When extended, the hidden portion emerges to provide additional seating surface area, effectively doubling the usable space only when needed

Inventive Principle:
Principle #7Nested doll (Nesting)

3Adaptability or versatility

If the sun pad structure is made more complex to enable extension, then the adaptability is improved, but the ease of manufacture worsens

Engineering Contradiction:
Improveposition adjustment capabilityVSAvoidassembly complexity
Core Design Contradiction:
Adaptability or versatilityVSEase of manufacture

Solution Approach 1:

The sun pad employs a dynamic structure with movable components that allow transition between retracted and extended positions. The connection between the visible and hidden portions uses simple mechanical linkages that enable easy movement while maintaining structural integrity, providing adaptability without excessive manufacturing complexity

Inventive Principle:
Principle #15Dynamics

Data Source

PatentUS20260042513A1Extendable sun pad seating for a boat
Publication Date: 2026.02.12 MASTERCRAFT BOAT CO LLC
  • US20260042513A1 patent drawing
  • US20260042513A1 patent drawing
  • US20260042513A1 patent drawing

AI summary

A sun pad seat and boat with the sun pad seat. The sun pad seat can include a sun pad that is extendable between a retracted position and an extended position. The sun pad seat can include a seat support and a rest elevated relative to the seat support to form a gap therebetween. A portion of the sun pad can be a hidden portion that is located in the gap when the sun pad is in the retracted position with at least a portion of the hidden portion exposed when the sun pad is in the extended position. The rest can be stationary relative to the seat support and can form a least a portion of the seat back of a bench seat located forward of the sun pad seat.