Window Bearing Mounting Aid With Ramp-Guided Bolt Alignment
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Solution Overview
Problem
Existing assembly aids for windows and French doors with pivoting bearing bolts face challenges in aligning the sash with the frame and aligning movable hinge components during installation, particularly for corner hinges, and are often costly.
Innovation Solution
The assembly aid features a guide element with a radially inward-facing ramp on a sleeve that guides the bearing bolt, allowing the sleeve to be pushed away from the bolt during insertion, facilitating alignment of the bearing components, and includes a detachable holding device with detent elements or clamping ribs for secure attachment.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a rotation lock is used in the corner hinge bolt, then the hinge can be securely fixed, but the manufacturing cost increases significantly
Solution Approach 1:
The patent introduces an intermediary assembly aid tool that mediates between the hinge components and the installation process. This tool includes a guide element with a guide track that directs the bearing bolt, and a holding device that secures the tool to the first bearing part, enabling accurate alignment and secure fixation without requiring complex rotation locks in the hinge itself
Solution Approach 2:
The assembly aid performs preliminary alignment and positioning actions before the actual hinge installation. The guide element is positioned in advance to establish the correct orientation, and the holding device is secured to the first bearing part beforehand, allowing the bearing bolt to be guided into place accurately without needing expensive rotation lock mechanisms
2Manufacturing precision
If traditional assembly aids are used for corner hinges, then alignment can be attempted, but the intended alignment of sash to frame and hinge components is compromised
Solution Approach 1:
The assembly aid is segmented into distinct functional elements: a guide element with a guide track for bearing bolt alignment, a holding device for securing to the first bearing part, and a ramp for facilitating bolt insertion. This segmentation allows each component to perform its specific function optimally, achieving precise alignment while simplifying the overall installation process
Solution Approach 2:
The assembly aid acts as an intermediary tool that bridges the gap between the installer and the hinge components. The guide element provides visual and physical guidance for correct positioning, while the holding device ensures the tool remains stable during installation, thereby achieving both high alignment precision and ease of operation
3Reliability
If the sleeve is designed to fully encompass the bearing band, then secure holding is achieved, but the bearing bolt cannot be inserted
Solution Approach 1:
The sleeve is designed with dynamic characteristics, including a ramp that slopes downward toward the bearing band. This ramp allows the sleeve to move slightly outward during bolt insertion, accommodating the bolt's passage, and then returns to its holding position to secure the bearing bolt firmly in place
Data Source
Figure 1~2
Figure 3~4
Figure 5~6
AI summary
An assembly aid (11) for a bearing (3) of a window, comprising two bearing parts (7, 8), has an alignment element (12) for clamping with a bearing band (10) and a guide element (13) for guiding a bearing bolt (9). The alignment element (12) has a sleeve (14) that encompasses the bearing band (10). The guide element (13) has a ramp (15) projecting from the alignment element (12). This simplifies the assembly, in particular of a bearing (3) designed as a corner bearing of a tilt-and-turn window.