Window Opening Limiter with Adjustable Rail and Push-Button Lock
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Solution Overview
Problem
Existing opening limiter devices for windows lack precise adjustment of the opening-limited position, leading to inconsistent gaps due to inaccurate lock installation, and require separate key operations for locking and unlocking.
Innovation Solution
An opening limiter device with a displaceable adjusting body and slider, featuring a locking mechanism with a manually operable push button, adjustable rail length, and a braking device, allowing for precise adjustment of the opening-limited position and eliminating the need for separate key operations by using a locking bolt that self-locks after maintenance.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If the lock is installed on the window sash frame to specify the maximum travel, then the opening-limited position can be defined, but the gap in the opening-limited position becomes inconsistent due to installation precision requirements
Solution Approach 1:
The device divides the opening limitation function into two independent components: the adjusting body with rail that defines the opening-limited position, and the lock that secures the adjusting body. This segmentation allows the position adjustment to be precise without requiring precise lock installation, as the lock only needs to secure the adjusting body rather than define the position itself.
Solution Approach 2:
The adjusting body acts as an intermediary between the lock and the slider. Instead of the lock directly interacting with the slider to define the stop position, the adjusting body with its rail provides a precise reference that the lock secures. This intermediary eliminates the need for precise lock-to-slider alignment.
2Reliability
If a locking device with key operation is used to secure the adjusting body, then the position can be locked, but separate key operations are required for locking and unlocking
Solution Approach 1:
The push button mechanism merges the locking and unlocking functions into a single operational interface. Pressing the push button simultaneously releases the locking bolt, allowing both locking and unlocking to be controlled through one simple action rather than requiring separate key operations.
Solution Approach 2:
The locking mechanism is designed to be self-operating through the push button. The push button directly actuates the locking bolt without requiring external keys or complex operations, making the system self-service and eliminating the need for separate key operations for locking and unlocking.
3Stability of the object's composition
If the adjusting body is fixed in position, then the opening angle is determined, but the gap in the window sash cannot be adjusted
Solution Approach 1:
The adjusting body is designed to be dynamically adjustable along the window sash frame while maintaining stability when locked in position. The rail allows the adjusting body to be repositioned to different locations, enabling gap adjustment, while the locking mechanism ensures stability once the desired position is reached.
Solution Approach 2:
The position parameter of the adjusting body can be changed by moving it along the window sash frame to different locations. This parameter change allows adjustment of the gap size, while the locking mechanism maintains the selected parameter value stable during operation.
Data Source
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AI summary
The invention relates to an opening limiter device (6) for a window assembly (1), comprising an opening limiter (7) which has a slider (17) movable in the rebate of the window assembly and a limiter arm (13) pivotally connected to the slider (17). According to the invention, the opening limiter (7) has an actuating element (12) with a longitudinal rail (16) that can be arranged in the rebate (4) of the window assembly (1), and the slider (17) is guided on the rail (16) of the actuating element (12) and is movable relative to the actuating element (12) over a travel distance.