Door Bolt Pre-Assembly for Groove Alignment
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Solution Overview
Problem
The installation of existing bolts for doors and windows with perimetric grooves is slow and difficult due to complex and misalignable separate parts, reducing efficiency and performance.
Innovation Solution
A bolt design featuring a slider, locking bar, and positioning block with pre-assembly means, such as tabs or a grub screw, allowing the slider and block to be temporarily fastened and easily positioned in the groove, ensuring correct alignment and quick installation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If separate slider and positioning block parts are used, then the bolt can be designed with modular components, but the installation becomes slow and difficult due to misalignment issues
Solution Approach 1:
The slider and positioning block are pre-assembled into a single integrated unit during manufacturing, with the positioning block already correctly positioned relative to the slider. This preliminary assembly eliminates the need for field alignment and installation of separate parts, directly resolving the contradiction between modular design benefits and installation difficulty.
2Adaptability or versatility
If separate slider and positioning block parts are used, then component flexibility is improved, but installation precision deteriorates due to alignment difficulties
Solution Approach 1:
The slider and positioning block are merged into a single pre-assembled unit, ensuring precise alignment is achieved during controlled manufacturing rather than during field installation. This merging maintains the functional benefits of having separate components while eliminating alignment precision issues during installation.
3Adaptability or versatility
If complex separate parts are used, then the bolt can accommodate various configurations, but the installation becomes more difficult and time-consuming
Solution Approach 1:
The complex slider and positioning block components are pre-assembled into a ready-to-install unit with all alignment features already configured. This preliminary action transforms a multi-step complex installation process into a single simplified installation operation, maintaining configuration flexibility while dramatically improving installation ease.
Data Source
Figure 1~5
Figure 2~6
AI summary
Described is a bolt for doors and windows (1) which comprise at least a fixed frame (2) and a mobile frame (3) equipped with at least one semi-fixed sash (3a) provided with a perimetric groove (4) in which operating and/or closing means are slidably accommodated. The bolt (5) comprises: an operating slider (6) which can be housed in the groove (4) of an upright (7) of the semi-fixed sash (3a) and which can be connected to an end locking bar (8) designed to set the sash (3a) to a stable open position and a stable closed position by the slidable control of the slider (6); a positioning /limit stop block (9) for the slider (6) housed stably, in use, in the groove (4) and having a head (9a) that fits into a hollow socket (10) obtained from a raised portion in the central part of the slider (6) and designed to form a slideway between the head (9a) and the slider (6), in such a way as to abut the slider (6) and thereby determine two end limit positions for the slider (6) itself; pre-assembly means (11) positioned and operating between the slider (6) and the block (9) in such a way as to releasably connect the two parts (6, 9) and so that both these parts are constrained in the required position at least upon being housed and positioned in the groove (4). [Figure 2]