Door And Window Opening Limiter With Diverging Slider Paths
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Solution Overview
Problem
Existing limiting devices for doors and windows are complex and costly to mount and dismount, requiring specific tools and operations, especially when changing the opening direction of the sash.
Innovation Solution
A limiting device with a diverting body that routes the slider along specific terminal sections based on the opening direction, allowing for simple mounting and dismounting using common tools, and adapting to different orientations without reversing the guide body or arm arrangements.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If known limiting devices with diverging sections and enlarged head sliders are used, then the sash opening can be limited effectively, but the mounting and dismounting operations become complex and costly requiring specific tools
Solution Approach 1:
The slot is divided into multiple sections: a first section for normal sliding movement and a second section with diverging paths for different opening directions. This segmentation allows the same slot structure to handle multiple functions (normal operation and different orientations) without requiring separate mechanisms, thereby simplifying mounting while maintaining reliable opening limitation.
Solution Approach 2:
The guide body with its multi-section slot serves multiple functions: it guides the slider during normal opening/closing movement, defines maximum opening positions through diverging sections, and accommodates different opening directions (inward and outward) without requiring separate guide bodies or arm arrangements for each orientation.
2Adaptability or versatility
If known devices require reversing the arrangement of guide body and arm for different opening directions, then adaptability to different orientations is achieved, but device complexity and mounting cost increase
Solution Approach 1:
The guide body is designed with a slot that has a first section for normal sliding and a second section with diverging paths that accommodate both inward and outward opening directions. This universal design allows the same guide body and arm arrangement to function correctly for multiple opening orientations without requiring reversal or reconfiguration.
Solution Approach 2:
The slot transitions from a single-direction path to a multi-dimensional configuration with diverging sections, enabling the guide body to handle different opening directions (inward and outward) within the same structural framework. This dimensional expansion of the slot geometry provides adaptability without increasing device complexity.
3Ease of operation
If known devices use enlarged head sliders that can be manually extracted from the slot, then unconstraining the arm is possible, but the operation requires specific tools and alignment procedures
Solution Approach 1:
The slot is segmented into a first section for normal operation and a second section with diverging paths. The slider can be unconstrained by moving into the second section and following the diverging path, which provides a clear, tool-free extraction mechanism without requiring precise alignment procedures.
Solution Approach 2:
The diverging section of the slot enables the slider to self-unconstrain through simple manual manipulation. The geometry of the diverging paths naturally guides the slider out of the guiding section without requiring external tools or complex alignment procedures, making the unconstraining operation intuitive and tool-free.
Data Source
Figure 1
Figure 1A
Figure 2
AI summary
A limiting device (1) for limiting the opening of a door or window having a movable sash (101) with respect to a fixed frame (104), the limiting device (1) comprises: a block (2) adapted to be connected to a first profile (102) of a fixed frame (104); a guide body (3) adapted to be connected to a second profile (103) of a sash (101) and comprising a straight guide (30) defining a sliding direction (B-B); a rod (4) which is movably coupled in translation to the straight guide (30) and has an end (4a, 4b) being configured to be coupled to an operating mechanism (200) to be operated in translation motion, wherein the operating mechanism (200) is mountable on the sash (101) and is controllable by means of a control member (201); an arm (5) having an end (5a) hinged to the block (2) and the opposite end (5b) coupled to a slider (6) being in turn slidably coupled to the guide body (3) by means of a slot (7) formed in the latter, wherein the slot (7) comprises a straight section (70) which extends parallel to the sliding direction (B-B), and wherein, at one of the two opposite ends (70a, 70b) of the straight section (70), the slot (7) bifurcates into two diverging terminal sections (71, 72), each forming an endstroke of the sliding of the slider (6), being further provided a diverting body (8) coupled to the rod (4) and configured to divert the slider (6) toward the sliding path identified by one of the two diverging terminal sections (71, 72).