Self-adjusting Stop Buffer with Cam Locking Mechanism
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Solution Overview
Problem
Existing stop buffers for vehicle components like tailgates and doors are difficult to assemble and adjust, often requiring complex alignment and locking mechanisms that cannot be readjusted once locked, leading to noise issues and instability when closing mobile structures.
Innovation Solution
A self-adjusting stop buffer system featuring a buffer head, central body, and locking element with a cam mechanism, allowing for easy assembly and adjustment by translating the locking element to block the buffer head and central body, providing tension and noise reduction.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Object-affected harmful factors
If a fixed stop buffer is used to maintain the mobile structure closed, then noise is reduced, but assembly becomes difficult and adjustment is not possible
Solution Approach 1:
The stop buffer incorporates a movable sliding element that can be adjusted along the guide profile during assembly, allowing the stop position to be dynamically modified to facilitate alignment, then locked in place to maintain noise reduction
2Ease of operation
If an adjustable stop buffer is used to facilitate assembly, then ease of assembly is improved, but the locking mechanism becomes complex and cannot be readjusted
Solution Approach 1:
The locking mechanism is divided into separate functional elements: a sliding element for adjustment, a locking element with ramp for positioning, and a stop element for final locking. This segmentation allows each component to perform its specific function independently, simplifying the overall mechanism while maintaining adjustability
Solution Approach 2:
The locking element automatically engages with the sliding element through the ramp mechanism, and the stop element self-locks in position. The system uses its own components to achieve locking without requiring external tools or complex mechanisms
3Reliability
If the stop position is fixed after assembly, then reliability is improved, but adaptability is lost
Solution Approach 1:
The system transitions from a static fixed stop to a dynamic adjustable stop during assembly, then locks into a stable position. The sliding element can move along the guide profile to different positions, each lockable by the locking element, providing both adjustability and reliability
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
The system simplifies assembly, reduces noise, and maintains the mobile structure closed by allowing for self-adjustment and secure locking, preventing unlocking under stress, thus enhancing the assembly process and performance.
Implementation Method 1
the locking element and the buffer head comprise, respectively, at least one thrust ramp and at least one housing capable of receiving said at least one ramp, said at least one thrust ramp and said at least one housing being capable of, when the locking element is actuated in translation, produce a cam effect and allow the buffer head to be raised
Data Source
Figure 0
Figure 1A~2B
Figure 3A~6B
AI summary
A self-adjusting stop buffer device (100) comprising a buffer head (60), a base (20) with a guide profile, and a central body (40) with a groove cooperating with said profile, the central body being mounted on the base by a translational movement along an X direction, the central body partially receiving the buffer head. The buffer head can move relative to the central body along a Z direction. The device further comprises a locking element (80) inserted in the central body along a Y direction, and actuable by translation to lock the buffer head in the Z direction within the central body and to lock the central body on the base in the X direction.The locking element and the buffer head each comprise, respectively, at least one thrust ramp (86) and at least one housing (66) adapted to receive said ramp, said ramp and housing being adapted, when the locking element is actuated in translation, to produce a cam effect and allow the buffer head to be raised. The locking element has an open position in the central body, in which said thrust ramp is received by said housing and the locking element can be depressed in the Y direction, and a locked position, in which the buffer head is blocked in the Z direction. The locking element and the base comprise locking means that cooperate only in the locked position to block the central body in the X direction.