Working Machine Cover Hinge for Faster Cover Mounting
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Solution Overview
Problem
Current working machines face challenges in easy mounting of cover members, maintaining external appearance quality, efficient routing of hydraulic hoses and electrical wires, improving mountability of air intake ducts, reducing mounting time for ducts and interior covers, and simplifying the adjustment of operator seats and consoles, as well as addressing issues with surface flatness and camera angle settings.
Innovation Solution
The working machine incorporates a hinge system with a movable arm and elongated holes for secure attachment of cover members, a grommet body for integrated passage of hydraulic hoses and electrical wires, expandable air intake ducts, adjustable harness lengths, a rail device for improved surface flatness, and a clamp system for hose replacement without lowering partition walls, along with an adjustable camera mount.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If the cover member is hoisted with a crane for mounting, then the cover member can be attached to the hinge, but the mounting process becomes time-consuming and requires precise operation and protective covering of components
Solution Approach 1:
The hinge is divided into a fixed arm attached to the frame member and a movable arm that swings independently. This segmentation allows the movable arm to be positioned and adjusted separately, enabling the cover member to be mounted without requiring precise crane operation to avoid interference with other components.
Solution Approach 2:
The movable arm is pre-positioned in an upward swung position that provides clearance above the component to be avoided. This preliminary positioning allows the cover member to be lowered and attached to the hinge without interference, eliminating the need for protective covering and reducing mounting time.
2Strength
If the cover member is made heavy for structural strength, then the cover member can provide adequate support, but the ease of mounting is reduced
Solution Approach 1:
The hinge system divides the support function between the fixed arm (attached to the frame member for structural strength) and the movable arm (which provides the mounting interface). This allows the cover member to be mounted on the lighter movable arm while the fixed arm provides the necessary structural support to the frame member.
3Ease of manufacture
If the guiding area is extended upward from the mounting area, then the mounting bolt can be easily guided, but the hinge structure becomes more complex
Solution Approach 1:
The guiding area is designed to extend upward in the direction of movement of the movable arm when it swings upward. This dynamic alignment of the guiding area with the movement direction automatically guides the mounting bolt without requiring additional complex structural elements, as the guiding function is integrated into the swing path of the movable arm.
Data Source
AI summary
A working machine includes: a machine body; a frame member; a cover member; and a hinge with which the cover member is swingably supported on the frame member, a connector plate attached to the hinge, the hinge includes: a movable arm which is supported on the frame member such that the movable arm is swingable up and down; a mounting plate which is fixed on a swinging end of the movable arm; the mounting plate has a hole for insertion of a mounting bolt, the hole being an elongated hole including: a mounting area through which the mounting bolt is passed to attach the connector plate to the mounting plate; and a guiding area which extends from the mounting area to guide the mounting bolt therethrough, and the guiding area extends upward from the mounting area when the movable arm is in an upward swung position.