Window Apparatus Cam Mechanism Reduces Operational Force
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Conventional window systems require significant operational force to insert and extract movable window plates through apertures, leading to inefficiencies and potential noise issues due to wind resistance.
Innovation Solution
The apparatus incorporates a rotating shaft, movement conversion mechanism, and drive shaft to reduce the operational force needed for moving the movable window plate between insertion, extraction, and opening positions, utilizing a cam and fixture guide to convert rotation into translation and minimize the required force.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If a movable window plate is inserted into and extracted from an aperture of a fixed window plate using conventional mechanisms, then the window can be opened and closed, but the operational force required is excessively large
Solution Approach 1:
The patent employs a cam mechanism that converts rotational motion into linear motion dynamically. The cam profile is designed to provide mechanical advantage during different phases of window plate movement, reducing the force required by the operator while maintaining control over the extraction and opening motions.
Solution Approach 2:
The invention introduces a rotational dimension to the traditionally linear extraction motion. By rotating the cam shaft, the system converts a simple pull motion into a combined rotational-linear motion sequence, which reduces the direct force requirement on the window plate while achieving the same extraction function.
2Object-affected harmful factors
If the movable window plate is moved directly from insertion position to extraction position, then the structure remains simple, but wind resistance causes noise and requires excessive force
Solution Approach 1:
The cam mechanism is designed to preliminarily prepare the window plate for extraction by gradually overcoming wind pressure before the plate fully exits the aperture. The cam profile creates a staged motion that reduces wind resistance noise by controlling the extraction sequence, preventing sudden air pressure changes.
Solution Approach 2:
The cam mechanism acts as an intermediary between the operator's input force and the window plate movement. It mediates the force application to reduce wind resistance effects during extraction, allowing smoother motion that minimizes noise while maintaining operational efficiency.
3Shape
If the movable window plate protrudes significantly during extraction, then the aperture can be fully opened, but the design becomes less compact and aesthetic
Solution Approach 1:
The invention changes the extraction trajectory from a purely linear path to a rotational-linear composite path using the cam mechanism. This allows the window plate to be extracted with minimal protrusion while still achieving full aperture opening, as the rotational component of the cam motion provides the necessary mechanical advantage to move the plate through the aperture with reduced displacement.
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
This configuration reduces the operational force required for inserting and extracting the movable window plate, enhances noise reduction by forming a continuous surface, and allows for a more compact design by altering the direction of motion, thereby minimizing protrusion and operational effort.
Implementation Method 1
a movement conversion mechanism configured to convert a rotation of the rotating shaft into a translation of the movable window plate between the insertion position and the extraction position
Data Source
AI summary
An apparatus for window is used for moving a movable window plate among an insertion position for being inserted into an aperture portion of a fixed window plate, an extraction position for being extracted from the aperture portion toward an indoor side, and an opening position for being moved from the extraction position in a sliding direction that is different from an inserting and extracting direction to open the aperture portion. The apparatus includes a rotating shaft rotatably supported at a predetermined position for the movable window plate; a movement conversion mechanism configured to convert a rotation of the rotating shaft into a translation of the movable window plate between the insertion position and the extraction position; and a drive shaft, fixed to the rotating shaft, configured to rotate the rotating shaft around a central axis of the rotating shaft by revolving around the central axis of the rotating shaft.