Reflecting Member Mounting on Wheel Excavator Chassis
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Solution Overview
Problem
The challenge in providing a wide range of visual recognition for a wheel type hydraulic excavator is exacerbated by the reduced size of the upper revolving structure and the presence of the working mechanism, making it difficult to mount and position reflecting members on the front side of the chassis effectively, especially when obstacles like the front wheels and outrigger device are present.
Innovation Solution
The solution involves mounting a reflecting member on the rear surface of the attachment mounting plate, positioned inside and near the towing through hole, allowing it to be easily recognized from a wide range and protected from collisions, with a simple flat surface configuration that does not interfere with the working mechanism or front wheels, and can be adjusted or replaced easily.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If the reflecting member is mounted on the front side of the upper revolving structure, then the mounting is simple, but the upper revolving structure might deviate from the mounting range due to reduced size and working mechanism placement
Solution Approach 1:
The reflecting member is mounted on the front attachment mounting plate which extends in both left-right and vertical directions, utilizing the vertical dimension to position the reflecting member above the working mechanism and front wheels, thereby achieving wide visual recognition without interfering with the reduced-size upper revolving structure
2Adaptability or versatility
If the reflecting member is mounted on the front side position of the chassis, then it can be provided on the chassis, but the front wheels and outrigger device create obstacles that limit visual recognition range
Solution Approach 1:
The reflecting member is positioned on the vertical upper surface of the front attachment mounting plate, elevated above the horizontal plane where front wheels and outrigger device create obstacles. This vertical placement in another dimension allows light reflection to be visible from a wide range of angles without being blocked by ground-level components
Solution Approach 2:
The front attachment mounting plate provides a localized flat surface with specific geometric properties (extending in left-right and vertical directions) that is optimized for mounting the reflecting member, creating a dedicated mounting zone that avoids interference from moving components while ensuring visibility
3Length of moving object
If the upper revolving structure is reduced in size to realize smaller revolving radius, then the revolving radius is reduced, but the mounting range for reflecting member on the front side is reduced
Solution Approach 1:
By transitioning from horizontal mounting on the upper revolving structure to vertical mounting on the front attachment mounting plate, the invention bypasses the space constraints caused by the reduced-size upper revolving structure, maintaining adequate mounting range while preserving the compact revolving radius
Solution Approach 2:
The reflecting member mounting function is extracted from the upper revolving structure and relocated to the front attachment mounting plate, separating the safety component mounting from the working structure, thereby allowing the upper revolving structure to be minimized without compromising mounting options
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
This configuration enhances the visibility and safety of the wheel type working vehicle by expanding the recognition range of the reflecting member, improving reliability and protection from external hazards, while allowing for the free design of movable components and reducing operational complexity.
Implementation Method 1
a towing through hole bored through an upper side position on both left and right sides and in the front and rear direction and used for mounting a cable in towing is provided on the attachment mounting plate
Implementation Method 2
a reflecting member which is one of the security components has its mounting position finely specified so that presence and a size of a vehicle can be grasped even in a dark place
Data Source
AI summary
A lower traveling structure (2) having front wheels (16) and rear wheels (17) provided on a chassis (12) extending in a front and rear direction, an upper revolving structure (4) rotatably mounted on the chassis (12), and a working mechanism (11) provided on a front side of the upper revolving structure (4) and at an intermediate position in a left and right direction are provided. On the other hand, a towing through hole (14J, 14K) bored through an upper side position on both left and right sides and in a front and rear direction and used for mounting a cable in towing is provided on a front attachment mounting plate (14) provided on a front side position of the chassis (12) constituting the upper revolving structure (4). Moreover, a reflecting member (23, 24) located inside in the left and right direction of the lower traveling structure (2) from the position of the towing through hole (14J, 14K) and in the vicinity of the towing through hole (14J, 14K) and reflecting ambient light is provided on a rear surface (14B) of the attachment mounting plate (14).