Telescopic Bed Frame Pivot Layout for Compact Vehicle Storage

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Solution Overview

Problem

Existing extra bed solutions lack a simple and convenient storage mechanism, limiting their versatility and adaptability for use in diverse environments, including vehicles.

Innovation Solution

A bed frame design featuring telescopic beams that pivot between transverse and longitudinal positions, allowing for compact storage and easy deployment, with holding mechanisms that secure the beams in place, enabling independent storage of the bed base and mattress within a vehicle's passenger compartment.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Adaptability or versatility

If the bed frame uses fixed-length beams, then the structure is simple and robust, but the storage volume is large and the adaptability to different environments is poor

Engineering Contradiction:
Improveadaptability to different environmentsVSAvoidstorage volume
Core Design Contradiction:
Adaptability or versatilityVSVolume of moving object

Solution Approach 1:

The patent applies the dynamics principle by making the beams telescopic rather than fixed-length. The beams can extend and retract along their longitudinal axes, allowing the bed frame to dynamically adjust its dimensions. This enables the frame to compact into a small storage volume when retracted and expand to provide a full-sized bed when extended, directly resolving the contradiction between small storage volume and adaptability to different environments.

Inventive Principle:
Principle #15Dynamics

Solution Approach 2:

The telescopic beam structure implements the nesting principle where one beam segment is inserted within another. The beams consist of nested tubular sections that can slide relative to each other, allowing the outer beam to contain the inner beam during storage. This nesting arrangement minimizes the storage volume while maintaining the capability to extend to full bed dimensions when needed.

Inventive Principle:
Principle #7Nested doll (Nesting)

2Volume of moving object

If the bed frame uses telescopic beams, then the storage volume is reduced and adaptability is improved, but the device complexity increases

Engineering Contradiction:
Improvestorage volumeVSAvoiddevice complexity
Core Design Contradiction:
Volume of moving objectVSDevice complexity

Solution Approach 1:

The dynamics principle is applied through the telescopic beam mechanism that allows extension and retraction. The beams incorporate internal sliding sections with locking mechanisms that enable smooth transformation between extended and retracted states. This dynamic structure achieves compact storage volume while managing complexity through efficient mechanical design.

Inventive Principle:
Principle #15Dynamics

Solution Approach 2:

The telescopic beams are segmented into multiple telescoping sections that can slide relative to each other. Each segment is independently controllable, allowing selective extension or retraction. This segmentation reduces overall device complexity by breaking down the complex telescoping motion into simpler, modular segment interactions with individual locking mechanisms.

Inventive Principle:
Principle #1Segmentation

3Volume of moving object

If the beams are in extended position for storage, then the bed base cannot be stored on the base, but the bed frame occupies excessive space

Engineering Contradiction:
Improvestorage volumeVSAvoidstorage capability
Core Design Contradiction:
Volume of moving objectVSAdaptability or versatility

Solution Approach 1:

The dynamic telescopic beam system allows the frame to switch between extended and retracted configurations. When retracted, the reduced footprint creates sufficient space on the base to store the bed base itself, while maintaining the capability to extend to full size when needed for actual bed usage, thus resolving the contradiction between storage volume and storage capability.

Inventive Principle:
Principle #15Dynamics

Data Source

PatentEP1890910B1Bedframe, bed comprising this frame, and method for fitting a motor vehicle with this bed
Publication Date: 2009.08.12 LEGRAND SNC
  • EP1890910B1 patent drawingFigure 1~2
  • EP1890910B1 patent drawingFigure 3~4
  • EP1890910B1 patent drawingFigure 5~6

AI summary

The frame comprises a base (32), two telescopic siderails (33) and mounting means (35, 46) for pivotally mounting each longitudinal member (33) to said base. This frame can be placed in a stowed position, in which said siderails (33) are, on said base (32), in a retracted and transversal position, and into a position of use, in which the siderails (33) are in an extended and longitudinal position. The frame also comprises means for holding the siderails (33) in an extended and longitudinal position opposite said base. The bed comprises the frame and a number of slats (36). The method comprises the step of providing a bed of this type and a step for putting the base (32) in place on first elements fixed to the vehicle as well as steps for moving the bed from a stowed position and into a position of use.