Motor Vehicle Lock Reinforcing Insert Design
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Solution Overview
Problem
Motor vehicle locks face deformation and operational failure under side impact forces, leading to difficulty in opening doors due to inadequate reinforcement, which existing solutions attempt to address with additional reinforcing elements but increase production complexity and waste.
Innovation Solution
A motor vehicle lock design featuring a lock housing with a reinforcing insert integrated into the lock case, made from a thick metal sheet, which is punched, drilled, and bent to minimize waste and enhance operational reliability, with the reinforcing insert connected via a web and protected by side walls to absorb external stresses.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Strength
If a separate reinforcing plate is added to improve crash safety, then the lock's strength is improved, but the device complexity and production effort increase
Solution Approach 1:
The reinforcing insert is integrated directly into the lock case structure, forming a unified component rather than a separate reinforcing plate. This merging of functions reduces the number of parts, simplifies assembly, and decreases production effort while maintaining the crash safety reinforcement function.
Solution Approach 2:
The lock case is constructed as a composite structure combining a metal sheet base with an integrated reinforcing insert, creating a hybrid component that provides both structural integrity and enhanced crash resistance without requiring separate metal plates.
2Reliability
If a reinforcing plate is added to improve operational reliability, then the lock's reliability is improved, but material waste increases
Solution Approach 1:
The reinforcing insert is formed as an integral part of the lock case from the same metal sheet, eliminating the need for separate reinforcing plates and reducing material waste associated with producing and assembling additional components.
Solution Approach 2:
The lock case thickness is increased in critical areas through the integrated reinforcing insert design, providing enhanced operational reliability and crash resistance without adding separate components that would generate additional waste.
3Strength
If the lock case is made from thicker metal sheet to improve strength, then the crash safety is improved, but the weight increases
Solution Approach 1:
The reinforcing insert is strategically positioned only in areas requiring enhanced strength for crash safety and operational reliability, rather than uniformly thickening the entire lock case. This localized reinforcement provides necessary strength while minimizing overall weight increase.
Solution Approach 2:
The lock case uses a composite construction with varying thickness - thinner metal sheet in non-critical areas and thicker reinforced sections where needed - optimizing the strength-to-weight ratio by placing material only where structurally necessary.
Data Source
AI summary
The invention relates to a motor vehicle lock, comprising a lock housing, a lock case, a locking mechanism and an operating device, wherein at least one component of the operating device extends through an opening in the lock housing and said opening is designed with at least one reinforcing insert. The main area of the plate or the metal sheet from which the lock case is made is basically relatively large. In light of this, it has proved advantageous to form the reinforcing insert from the lock case. Waste is thus avoided.