Helmet Shield Attaching Mechanism with Movable Base Member
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Solution Overview
Problem
The existing helmet shield attaching mechanism is cumbersome for adjusting the inner surface of the shield to closely contact the window opening rim member, requiring complex operations and multiple steps, making accurate adjustment difficult.
Innovation Solution
A helmet shield attaching mechanism with a stationary base member and a movable base member that includes stopper means for holding positions, elastic biasing means for easy adjustment, and a pivotal manipulation member for precise positioning, allowing the shield to be easily and accurately adjusted for a snug fit with the window opening rim.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If the shield attaching mechanism uses a fixed stationary base member attached to the head protecting body, then the structure is simple, but the adjustment operation becomes cumbersome and difficult to achieve accurate contact between the shield inner surface and window opening rim member
Solution Approach 1:
The base member is designed to be movable relative to the head protecting body, allowing dynamic adjustment of the shield position. The movable base member can shift forward and backward along the window opening rim member, enabling easy adjustment of the shield's contact position with the rim member while maintaining structural simplicity.
Solution Approach 2:
The base member is divided into a stationary base member and a movable base member. The stationary base member remains fixed to the head protecting body, while the movable base member can independently adjust its position along the window opening rim member, allowing precise adjustment without complicating the overall structure.
2Adaptability or versatility
If the shield attaching mechanism requires removing the shield and loosening male screw members for adjustment, then the shield can be repositioned, but the adjustment operation becomes complex and time-consuming
Solution Approach 1:
The movable base member enables dynamic position adjustment without requiring disassembly. The base member can be easily moved forward and backward along the window opening rim member and locked at desired positions, significantly reducing adjustment time while maintaining full adjustability of the shield position.
Solution Approach 2:
The adjustment mechanism allows the shield position to be modified through simple movement of the base member along the rim member, eliminating the need for complex disassembly and reassembly operations. The system serves itself by providing inherent adjustability through the movable base member design.
3Device complexity
If the shield attaching mechanism uses a simple structure without multiple adjustment mechanisms, then the structure remains simple, but accurate positioning of the shield with respect to the window opening rim member becomes difficult
Solution Approach 1:
The movable base member provides dynamic positioning capability along the window opening rim member. By allowing the base member to move forward and backward and lock at various positions, the system achieves precise shield positioning without requiring complex multi-mechanism structures.
Solution Approach 2:
The adjustment is achieved by adding movement along the longitudinal dimension of the window opening rim member. The movable base member can shift in the back-and-forth direction along the rim member, providing precise positioning in this dimension while keeping the overall structure simple.
Data Source
AI summary
This invention provides a helmet shield attaching mechanism capable of relatively easily and relatively accurately performing an adjustment operation for satisfactorily bringing the inner surface of a shield in a substantially fully-closed state into close contact with the window opening rim portion of a head protecting body. The holding position of stopped means of a movable base member, whose position is held by stopper means of a stationary base member in an at least substantially fully-closed state of the shield, can be selected from one of a plurality of portions of the movable base member substantially in the back-and-forth direction.