Vehicle Door Lock Detachable Plug Connection
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing motor vehicle door lock production methods are complex and expensive due to adhesive connections and injection molding processes, which complicate the assembly of three-component locking mechanisms with metallic base bodies, high-strength plastic casings, and flexible damping elements.
Innovation Solution
A detachable plug/slide connection between the metallic base body and high-strength plastic casing, and a detachable push/pull connection between the casing and flexible damping element, allowing for cost-effective and simplified production without adhesive bonding, using thermoplastic materials for the casing and rubber-elastic materials for the damping element.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If adhesive connections and injection molding processes are used to assemble the three-component locking mechanism, then the mechanical stability and noise damping are improved, but the production complexity and cost increase significantly
Solution Approach 1:
The locking mechanism is divided into three separate component elements (metallic base body, plastic casing, flexible damping element) that can be manufactured independently through simple processes and then assembled together using detachable connections, avoiding complex injection molding while maintaining functional integrity
Solution Approach 2:
The patent introduces simple detachable connection elements as intermediaries between the three component elements, replacing complex adhesive bonding and injection molding processes with easily assembleable mechanical connections that simplify production while maintaining structural stability
2Strength
If adhesive connections are used to bond the component elements, then the structural integrity is improved, but the production time and cost increase due to hardening requirements and mutual fixation
Solution Approach 1:
The assembly process is segmented into independent steps where each component element can be prepared separately and then quickly assembled using detachable connections, eliminating the need for adhesive hardening time and allowing parallel production processes
Solution Approach 2:
The detachable connection elements are designed to self-secure the component elements together through simple mechanical interlocking, eliminating the need for additional fixation steps and adhesive hardening processes, enabling immediate further processing after assembly
3Object-generated harmful factors
If a flexible damping element with rubber-elastic character is used, then the noise damping and gentle braking are improved, but the production complexity and cost increase due to gel-containing envelopes
Solution Approach 1:
The patent replaces complex gel-containing flexible damping elements with simpler, cost-effective damping materials that can be easily integrated into the plastic casing through standard manufacturing processes, maintaining noise damping functionality while reducing production complexity
Solution Approach 2:
The patent uses composite construction where the plastic casing itself incorporates damping properties through material selection or structural design, eliminating the need for separate complex flexible damping elements while maintaining noise reduction performance
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
Enables rapid, cost-effective production of motor vehicle door locks with reduced noise and improved mechanical stability, allowing for immediate further processing and installation, while avoiding complex production steps and hard stops, ensuring quiet operation and effective damping of mechanical forces.
Implementation Method 1
the flexible damping element ensures that a mutual impact between the locking mechanism components or the noise associated with hitting each other is dampened
Implementation Method 2
The primary function of the casing made of high-strength plastic is to dampen the operation of the motor vehicle door lock and to enable operation that is as quiet as possible
Data Source
Figure 1
Figure 2A~2C
AI summary
The subject matter of the present invention is a motor vehicle door lock and a method for producing same. The motor vehicle door lock is equipped with a locking mechanism (1, 2, 3, 4) of at least two locking components (1; 2, 3, 4) such as a rotary latch (1) and a locking pawl (2, 3, 4). At least one locking component (2, 3, 4) has at least one metallic base body (2), a sheath (3) made of a plastic having high strength and a flexible damping element (4) as component elements (2, 3, 4). According to the invention, the component elements (2, 3, 4) of the locking component (2, 3, 4) are coupled with one another by a respective detachable plug-in/push connection.