Guide fitting and furniture or household appliance element
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Solution Overview
Problem
Existing furniture or household appliance elements with translational-rotational movements face challenges in providing stable support, especially for larger and taller items, and often restrict the full range of motion due to handles or similar mechanisms.
Innovation Solution
A guide fitting with a guide cam track, a guide element, and a linear guide, equipped with an ejection device and activators, allows for easy triggering of combined translational-rotational movements by unlocking a force accumulator, facilitating movement from end positions.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If a handle is fitted to pull the body part forward, then the body part can be actuated from end position, but the handle restricts the movement options and prevents full rotation
Solution Approach 1:
The patent removes the handle entirely and replaces it with an ejection device that uses a force accumulator to automatically propel the body part from the end position. This extraction of the handle eliminates the restriction it imposed on rotational movement while maintaining the ability to actuate the body part from the end position.
Solution Approach 2:
The ejection device with force accumulator provides self-service actuation by automatically propelling the body part from the end position without requiring manual handling. The activator simply triggers the pre-loaded force accumulator, which then self-propels the body part through the guided translational-rotational movement.
2Stability of the object's composition
If additional support is provided via guide bearing for larger furniture elements, then stability is improved, but device complexity increases
Solution Approach 1:
The patent merges the guidance function and the support function into a single integrated guide fitting. The guide cam track provides both the stability support for larger furniture elements and the guidance for translational-rotational movement in one unified structure, eliminating the need for separate guide bearings and reducing overall device complexity.
Solution Approach 2:
The guide fitting serves multiple functions simultaneously: it provides stability support for larger furniture elements, guides the translational-rotational movement, and works with the ejection device to enable end-position actuation. This multi-functionality reduces the need for additional separate components.
3Ease of operation
If ejection device with force accumulator is added, then ease of triggering movement is improved, but device complexity increases
Solution Approach 1:
The force accumulator is pre-loaded with energy in advance, so that when the activator is triggered, the body part is immediately propelled without requiring continuous manual force. This preliminary action stores the necessary energy beforehand, making the triggering process simple while the accumulator handles the complex energy storage and release mechanism.
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 solution enables stable and efficient translational-rotational movements in furniture or household appliance elements, allowing for full range of motion without restrictions, even in larger and taller designs.
Implementation Method 1
at least one ejection device with an unlockable force accumulator, with which the body part can be driven from at least one end position by exerting force against an ejection direction along a limited distance
Data Source
AI summary
A guide fitting, guiding a body part for simultaneous translational and rotational movement relative to a stationary base, has a guide cam track, a guide element guided in the at least one guide cam track, and a linear guide with at least one guide rail and a running rail displaceable relative thereto, one of which is coupled in a stationary manner to the guide element and the other of which is coupled to the guide cam track by a pivot bearing. The guide cam track or the guide element can be fixedly fastened to the body part. The fitting also includes at least one ejection device with an unlockable force accumulator drives the body part from at least one end position by exerting force against an ejection direction along a limited path, and at least one activator for unlocking the force accumulator of the ejection device.