Window Carriage With Volumetric Deployment Arm
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Solution Overview
Problem
Existing window and door carriage systems face challenges in supporting heavier and taller wings while maintaining a compact design, ensuring smooth operation, and securely guiding the sash in a parallel parked position with a large opening path.
Innovation Solution
A carriage design featuring large rollers that occupy at least 90% to 95% of the housing height, with a compact and volumetric deployment arm configuration that includes a pivotable control section and a double projection mechanism for guiding and releasing the control arm, allowing for high load-bearing capacity and efficient movement within a limited space.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Volume of moving object
If the carriage uses a compact design with small housing, then the overall height is reduced and it fits narrowly into the construction area, but the carrying capacity and opening distance are limited
Solution Approach 1:
The deployment arm is designed with a volumetric configuration that extends in multiple dimensions rather than a single plane. The arm can be folded into a compact configuration within the housing volume when not in use, but deployed to provide large opening distance and high carrying capacity when needed, effectively using spatial dimensions to resolve the contradiction between compact housing and high performance.
Solution Approach 2:
The deployment arm is designed as a dynamic, pivotable structure that can change its configuration between a retracted state (for compact housing) and an extended state (for high carrying capacity and large opening distance). This dynamic transformation allows the same structure to serve both compact design requirements and high performance requirements at different operational states.
2Volume of moving object
If the carriage uses a compact design, then it fits narrowly into the construction area, but the opening path is limited
Solution Approach 1:
The deployment arm utilizes three-dimensional spatial arrangement to achieve large opening path while maintaining compact housing. The arm pivots and extends in multiple dimensions, allowing the sash to traverse a long path (up to 125 mm) without requiring a proportionally large housing volume, as the arm folds into the housing space when retracted.
Solution Approach 2:
The pivotable deployment arm provides dynamic movement that enables large opening path within limited housing. The arm can be folded into a compact position within the housing volume when not in use, but deployed to provide extensive opening path when needed, effectively decoupling the housing volume from the operational opening path length.
3Weight of moving object
If the rollers are made large to ensure smooth running, then the carrying capacity increases, but the housing height increases
Solution Approach 1:
The large rollers are nested within the volumetric deployment arm structure rather than requiring separate housing space. The deployment arm configuration allows the rollers to be positioned efficiently within the overall structure, enabling large roller size for smooth operation and high carrying capacity without proportionally increasing the housing height, as the arm folds around and accommodates the rollers in its volumetric configuration.
4Volume of moving object
If the carriage is designed to be compact, then it fits narrowly into the construction area, but the control mechanism becomes more complex
Solution Approach 1:
The control mechanism is merged with the deployment arm structure itself rather than being a separate complex system. The pivotable deployment arm serves both as the structural element for opening/closing and as the control mechanism, with the control section integrated into the arm's configuration. This merging simplifies the overall control mechanism while maintaining compact housing, as the same structural elements perform both support and control functions.
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
Enables the carriage to support weights up to 200 kg in a double version and 160 kg in a standard version, ensuring smooth operation with a large opening distance of up to 125 mm, while maintaining a compact and secure design that prevents evasive movements and ensures reliable latching and unlocking mechanisms.
Implementation Method 1
The carriage has at least one roller (20, 21) that can be rotated and that runs on a running rail (70)
Implementation Method 2
a spring element (14) that holds the control arm (35) in a latched position
Data Source
Figure 1~2b
Figure 3
Figure 4a~5b
AI summary
A carriage for a wing for longitudinal movement of the wing in a parallel-positioned position comprises a housing area (10) with at least two of the rollers (20, 21) and a bearing point (18) for pivoting a support arm (30); wherein the support arm (30) for parallel positioning of the wing has a distant bearing point (100) for the wing and a bearing point (38) closer to the housing area (10) for one end of a control arm (35); a control section (40; 41) extends in a longitudinal direction of the housing area (10) and has a guide (41) for the other end area of the control arm (35);a releasably locked position of the control arm (35) is secured by a downwardly projecting projection (39b) in an angled end region (41b) of the guide by a spring element (14), wherein the extension arm (30) in its pivoted position can be placed close to the housing region (10), and a bulbous bulge (42) in a side region of the control section (40, 41), which is angled relative to the longitudinal guide, is received in a bay-shaped recess (33) of the extension arm (30).