Lever-Clip Cot Structure for Easy Assembly and Lower Pack Volume

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Solution Overview

Problem

Conventional cots with X-shaped legs face limitations in reducing volume and weight due to their length and material requirements for stability, and require significant force for assembly and disassembly.

Innovation Solution

A cot design featuring horizontal poles, support bars with clips that open outward, and a clip adjusting mechanism using a lever principle, allowing for easier assembly and disassembly, reduced weight, and integration of a heating pad for warmth.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Stability of the object's composition

If the legs are made long to maintain stability, then the stability is improved, but the weight and volume increase

Engineering Contradiction:
ImprovestabilityVSAvoidweight
Core Design Contradiction:
Stability of the object's compositionVSWeight of moving object

Solution Approach 1:

The legs are designed to be collapsible and extendable, allowing the cot to transition between a compact state for transport and a stable extended state for use. This dynamic structure enables stability when needed while minimizing weight and volume during storage.

Inventive Principle:
Principle #15Dynamics

Solution Approach 2:

The legs are designed to nest within each other when collapsed, with inner leg sections fitting inside outer leg sections. This nesting arrangement significantly reduces the overall volume and weight when the cot is disassembled for transport.

Inventive Principle:
Principle #7Nested doll (Nesting)

2Stability of the object's composition

If the legs are made long to maintain stability, then the stability is improved, but the volume increases

Engineering Contradiction:
ImprovestabilityVSAvoidvolume
Core Design Contradiction:
Stability of the object's compositionVSVolume of moving object

Solution Approach 1:

The legs are designed to be collapsible and extendable, allowing the cot to transition between a compact state for transport and a stable extended state for use. This dynamic structure enables stability when needed while minimizing weight and volume during storage.

Inventive Principle:
Principle #15Dynamics

Solution Approach 2:

The legs are designed to nest within each other when collapsed, with inner leg sections fitting inside outer leg sections. This nesting arrangement significantly reduces the overall volume and weight when the cot is disassembled for transport.

Inventive Principle:
Principle #7Nested doll (Nesting)

3Ease of manufacture

If the connection rods are pulled to both sides to insert into the guide, then the assembly is completed, but much force is required

Engineering Contradiction:
ImproveassemblyVSAvoidforce
Core Design Contradiction:
Ease of manufactureVSForce

Solution Approach 1:

The connection mechanism utilizes spring-loaded clips that automatically engage with the guide slots when the legs are positioned. The springs provide the necessary force to snap the clips into place, eliminating the need for users to apply significant manual force during assembly.

Inventive Principle:
Principle #25Self-service

Solution Approach 2:

Spring-loaded clips serve as intermediaries between the connection rods and the guide slots. These clips facilitate easy connection by using spring force to automatically engage with the guides, reducing the manual effort required by users.

Inventive Principle:
Principle #24Intermediary (Mediator)

Applied Scientific Principles

This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.

Function Achieved in This Case

The design reduces the cot's weight and volume, simplifies assembly, and provides warmth through the heating pad, enhancing user convenience and comfort.

Implementation Method 1

the clip adjusting member is configured so that a length at one side extending from the rotary shaft to the clip is shorter than a length at the other side extending from the rotary shaft to an end opposite to the clip, thereby operating by means of the principle of the lever

Methodology Applied
Scientific EffectLever principle: Lever

Implementation Method 2

a heating pad disposed at a lower side of the cloth

Methodology Applied
Scientific EffectThermal energy: Heating

Data Source

PatentEP2727499B1Cot
Publication Date: 2015.06.10 LAH JEH KUN
  • EP2727499B1 patent drawingFigure 1
  • EP2727499B1 patent drawingFigure 2
  • EP2727499B1 patent drawingFigure 3A~3B

AI summary

A cot (100) having a simple structure and capable of being easily installed and dissembled is provided. The cot (100) includes a cloth having horizontal poles (110) inserted into both ends thereof, a plurality of support bars (130, 130a, 130b, 130c) for supporting a load in contact with the ground, and a plurality of connection bars (140, 140a, 140b, 140c) connected to both ends of each support bar (130, 130a, 130b, 130c) and respectively having clips (142) at terminals thereof to receive the horizontal poles (110), wherein the clips (142) are open toward the outside.