Guide fitting and furniture or domestic appliance element
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Solution Overview
Problem
Existing furniture or household appliance elements with translational-rotational movable body parts, especially when heavily loaded, experience abrupt stops at end positions, leading to potential damage and instability, and existing guide systems are prone to damage from impacts.
Innovation Solution
A guide fitting with a guide cam track and a guide element, featuring a linear guide and a self-closing device, ensures smooth movement into a predetermined end position by using a rotary bearing and self-closing mechanism to prevent abrupt stops.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If a guide bearing is used to enable translational-rotational movement of the body part, then the body part can be moved smoothly between positions, but abrupt stops at end positions occur causing damage to objects and guide components
Solution Approach 1:
The patent applies beforehand cushioning by introducing a self-closing device with a spring element that accumulates energy during the movement of the body part and releases it at the end position to provide a cushioning effect. The self-closing device includes a catch element that engages with a stop element, and the spring element is pre-compressed to absorb the impact energy when the body part reaches its end position, preventing abrupt stops and potential damage to objects and guide components.
2Quantity of substance
If the body part is heavily loaded, then storage capacity is improved, but the movement becomes unstable and causes abrupt stops at end positions
Solution Approach 1:
The patent applies the anti-weight principle by using a self-closing device with a spring element that counteracts the momentum and weight of the heavily loaded body part during movement. The spring element provides a counterbalancing force that stabilizes the movement, especially at end positions where the body part would otherwise experience abrupt stops. This allows the system to maintain movement stability even when carrying heavy loads.
3Ease of operation
If a guide cam track and guide element are used to guide the body part, then movement guidance is achieved, but the guide components are prone to damage from impacts
Solution Approach 1:
The patent protects the guide cam track and guide element from impact damage by introducing a self-closing device with a spring element that absorbs impact energy before it reaches the guide components. The self-closing device acts as a buffer, reducing the forces transmitted to the guide cam track and guide element during end-position arrivals, thereby extending their service life and preventing damage.
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 guide fitting allows for smooth and stable insertion of the body part into a defined end position, preventing damage and ensuring reliable guidance, even under heavy loads.
Implementation Method 1
a catch element which is spring-loaded and/or damped in the guide track and captures the guide element in a predetermined position
Implementation Method 2
a catch element which is spring-loaded and/or damped in the guide track and captures the guide element in a predetermined position
Data Source
Figure 1
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AI summary
A guide fitting (4) for guiding the movement of a carcass part (3) that is mounted such that it can move simultaneously in translation and rotation relative to a stationary base, has a guide cam track (5), a guide element (11) guided in the guide cam track (5), and a linear guide (6) having at least one first connection part and a second connection part that can move relative thereto, one of which is coupled in a stationary manner to the guide element (11) and the other is coupled to the guide cam track (5) by means of a pivot bearing (9), wherein the guide cam track (5) or the guided element (11) can be attached in a stationary manner to the carcass part (3), wherein the guide cam track (5) can move relative to the first connection part from a starting position into an intermediate position and further into an open position and back, wherein, in an intermediate position, the guide cam track (5) is rotated relative to the first connection part in a direction of rotation (R, R) and is displaced in a predetermined direction (A), wherein the guide fitting (4) has at least one self-retracting device (8, 12) that is coupled, at least in sections, to the linear guide (6) or to the guide cam track (5). A furniture or domestic appliance element (1) is also described.