Adjustable Headrest Creeper With Ratcheting Hinge Assembly
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Solution Overview
Problem
Existing creepers with adjustable headrests are cumbersome and typically allow only one relative position between the headrest and body pad, limiting user comfort and convenience.
Innovation Solution
A creeper design featuring a hinge assembly with ratcheting hinges connecting the headrest and body pads, allowing multiple angular orientations and secure positioning of the headrest relative to the body pad.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If a separate headrest with pivot mechanism is used, then user comfort is improved, but the mechanism becomes cumbersome and difficult to use
Solution Approach 1:
The headrest assembly is segmented into multiple components: a headrest pad, a first bracket attached to the pad, a first arm connected to the bracket, and a ratcheting hinge mechanism. This segmentation allows each component to perform a specific function independently, simplifying the overall adjustment mechanism while maintaining multiple positioning capabilities.
Solution Approach 2:
The ratcheting hinge mechanism enables self-service adjustment where the user can easily manipulate the headrest to desired positions without requiring complex controls or assistance. The ratcheting action automatically locks the headrest in place, providing self-regulating positioning functionality.
2Adaptability or versatility
If a simple pivot mechanism is used, then the device is easier to use, but only one relative position between headrest and body pad is permitted
Solution Approach 1:
The headrest mechanism transitions from a static single-position design to a dynamic multi-position system. The ratcheting hinge allows the headrest to be adjusted to multiple angular positions relative to the body pad, with each position being securely locked. This dynamic capability provides adaptability while maintaining ease of operation through simple manual adjustment.
Data Source
AI summary
A creeper includes a headrest pad, a body pad carried by a frame, and a hinge assembly between the headrest pad and the body pad. The hinge assembly includes a first bracket attached to the headrest pad and a second bracket attached to the body pad. A first arm is connected to each end of said first bracket and a second arm is attached to each end of the second bracket. A ratcheting hinge is connected between the first arms and between the second arms so that the headrest pad can be positioned at multiple locations relating to the body pad.