Sliding Door Lining Unit Tool-Free Assembly Mechanism
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Solution Overview
Problem
Existing sliding door fitting units require complex alignment and tooling for assembly, making it difficult for non-professionals to assemble safely and correctly.
Innovation Solution
A sliding door fitting unit with a supporting part featuring a keyhole opening and pivoting recess, where the acceleration and deceleration device is secured using a key pin and pivoting pin, allowing for easy and tool-free assembly by pivoting the device into place.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If traditional fastening methods with multiple fasteners and alignment are used, then the acceleration and deceleration device can be securely mounted, but the assembly process becomes complex and requires professional tools and alignment skills
Solution Approach 1:
The patent combines multiple fastening functions into a single integrated mounting structure. The support part features a unified design where the acceleration and deceleration device is attached as one component, eliminating the need for separate alignment and multiple fastener operations. This merging of functions simplifies the assembly process while maintaining secure mounting.
Solution Approach 2:
The mounting structure is designed to be self-aligning and self-fastening. The support part incorporates features that automatically guide the acceleration and deceleration device into the correct position and secure it without requiring external alignment tools or multiple fastening steps, enabling easy assembly by non-professionals.
2Strength
If alignment and multiple fasteners are required for mounting, then secure attachment is achieved, but the assembly time and skill requirement increase
Solution Approach 1:
The support part is pre-configured with integrated fastening features and alignment guides during manufacturing. This preliminary preparation ensures that during assembly, the acceleration and deceleration device can be quickly attached without requiring time-consuming alignment or multiple fastening operations, while still achieving strong attachment.
3Manufacturing precision
If professional alignment and tooling are used, then precise mounting is achieved, but the ease of assembly for non-professionals deteriorates
Solution Approach 1:
The support part incorporates asymmetric features such as keyhole openings and positioning elements that provide built-in alignment guidance. These asymmetric design elements ensure that the acceleration and deceleration device can only be mounted in the correct orientation, achieving precise mounting without requiring professional alignment skills or tools.
Data Source
Figure 1~3
Figure 2
Figure 4
AI summary
The unit (30) has an acceleration- and deceleration device (50) arranged at a support part (31) by a key pin (61) that is engaged behind the support part, and a pivot pin. The support part and the pivot pin are mutually locked. The support part has a pivot recess resting on a circular arc section at a central axis of a keyhole opening. The key pin penetrates the support part and exhibits a bolt (64) engaging behind the keyhole opening. The pivot pin has an actuating lever locked with the support part. The acceleration- and deceleration device is arranged at a body (20).