Working Machine Fluid Supply Port Cover Hinge With Rotation Stop
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Solution Overview
Problem
The existing working machines lack a mechanism to limit the opening degree of the fluid supply port cover, leading to potential damage to the cover or its peripheral sections.
Innovation Solution
A hinge mechanism with an abutting portion that limits the rotation of the fluid supply port cover by abutting on an abutted portion, optionally with an elastic body, to control the opening degree and prevent damage.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If the fluid supply port cover is made rotatable without limitation, then the ease of operation is improved, but the reliability deteriorates due to potential damage to the cover or peripheral sections
Solution Approach 1:
The patent changes the parameter of rotation angle by introducing a limiting mechanism. The hinge includes an abutting portion that prevents the cover from rotating beyond a predetermined angle, thus controlling the opening degree while maintaining ease of operation and preventing damage to peripheral components
Solution Approach 2:
The abutting portion acts as an intermediary element between the cover and the hinge. When the cover rotates to a predetermined angle, the abutting portion contacts the hinge to limit further rotation, serving as a mediator that protects the system from excessive movement while allowing normal operation
2Ease of operation
If the opening degree of the fluid supply port cover is not limited, then the ease of operation is improved, but the object-affected harmful factors increase due to potential damage to the cover or peripheral sections
Solution Approach 1:
The patent applies preliminary anti-action by pre-configuring the hinge with an abutting portion that will prevent excessive rotation before damage can occur. This proactive limitation mechanism stops the cover at a safe angle, preventing harmful effects to the cover and peripheral sections before they can manifest
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
Prevents damage to the fluid supply port cover and its peripheral components by regulating the opening degree, ensuring reliable operation and longevity.
Implementation Method 1
At least one of the abutted portion or the abutting portion may be provided with an elastic body. The abutting portion may be configured to abut on the abutted portion via the elastic body.
Data Source
AI summary
A working machine includes a machine body, tank(s) provided in the machine body and including a fluid supply port, a cover body to cover the tank, the cover body including a main wall portion and an opening provided in a portion of the main wall portion to expose the fluid supply port, a fluid supply port cover to open and close the opening, and a hinge to support the fluid supply port cover in a rotatable manner. The hinge includes an abutting portion to abut on an abutted portion at an opening peripheral edge portion that is a peripheral edge portion of the opening of the cover body or in a vicinity of the opening peripheral edge portion from an inner side of the machine body, to limit rotation in an opening direction of the fluid supply port cover when the fluid supply port cover is rotated and opened.