Spring Hinge Temporary Closure Device for Vehicle Doors
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Solution Overview
Problem
Existing temporary closure devices for vehicle doors require labor-intensive screwing steps for assembly and disassembly, leading to increased assembly time and costs.
Innovation Solution
A temporary closure device with a movable lock connected by an elastic hinge, allowing automatic transition between locked and unlocked positions without operator intervention, eliminating the need for additional tools or steps during assembly and disassembly.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a temporary closure device uses a fixing plate with bores aligned with strike plate fixing holes for assembly, then the device can be securely fixed to the vehicle chassis, but the assembly and disassembly process requires labor-intensive screwing steps that increase assembly time and costs
Solution Approach 1:
The device is divided into a fixing plate and a stop body that can be independently assembled and disassembled. The fixing plate remains attached to the chassis while the stop body can be quickly removed, allowing segmentation of the assembly process to reduce time while maintaining secure fixing capability.
Solution Approach 2:
The stop body is designed as a movable element that can be dynamically inserted into and removed from the strike plate opening, replacing static screw-based assembly. This dynamic approach allows rapid deployment and removal without requiring fastening operations.
2Reliability
If a temporary closure device uses a fixing plate with bores aligned with strike plate fixing holes for assembly, then the device can be securely fixed to the vehicle chassis, but the screwing process entails significant assembly cost for each vehicle
Solution Approach 1:
By segmenting the device into a reusable fixing plate and a disposable or reusable stop body, the complex screwing operation is eliminated. The fixing plate can be permanently or semi-permanently attached with minimal fastening, while the stop body is simply inserted or clipped into position, significantly reducing assembly cost.
Solution Approach 2:
The stop body can be designed as a simpler, potentially disposable component that does not require expensive fastening operations. This allows the use of cheaper materials and manufacturing processes for the stop body, reducing overall assembly cost while maintaining secure fixing functionality.
3Productivity
If a temporary closure device uses a movable lock with elastic hinge and spring effect for automatic locking, then assembly and disassembly become quick and simple without additional tools, but the device complexity increases due to the movable lock mechanism
Solution Approach 1:
The elastic hinge with spring effect enables the stop body to automatically lock into position without requiring external tools or additional locking mechanisms. The system serves itself by using the insertion motion to compress the spring, which then maintains the locked state, simplifying the assembly process while controlling complexity through self-servicing functionality.
Solution Approach 2:
The elastic hinge acts as an intermediary element that mediates between the simple insertion motion and the secure locked state. This intermediary component translates the straightforward insertion action into a reliable locking mechanism, achieving high productivity while containing device complexity within a single well-defined component.
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
Facilitates quick, simple, and cost-effective assembly and disassembly of the closure device, reducing labor time and assembly costs by leveraging the spring effect of the elastic hinge for automatic locking and unlocking.
Implementation Method 1
The latch is a mobile element connected to the base by an elastic hinge with axis spring effect
Implementation Method 2
thanks to the first elastic hinge connecting the lock to the plate, the latch returns to its initial position and therefore to the locked position, the abutment member automatically placing itself in a locking position of the first latching member by the spring effect of the latch imparted by the first elastic hinge
Data Source
Figure 1
Figure 2~3
Figure 4~5
AI summary
The invention relates to a temporary closing device (1) for an opening element on a support element comprising a first bore and a second bore. Said device (1) comprises a stop body (3) and a mounting plate (2) comprising a first latching member (21) for engagement in the first bore and a second latching member (22) for engagement in the second bore. According to the invention, the device (1) comprises a latch (24) connected to the mounting plate (2) by a spring-loaded elastic hinge with axis (I) and rotatably free to rotate between: - a locked rest position in which the stop member (240) is pressed against the second latching member (22) so as to form a block (26) for engagement in the second bore, and - an unlocked position under tension.