Rotating Jack Float Layout for Compact Work Machine Storage
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Solution Overview
Problem
Conventional jack devices for work machines require labor-intensive detachment of the float from the rod for storage, increasing operational complexity and inefficiency.
Innovation Solution
A jack device design featuring a cylinder that can rotate between upright and tilt postures, allowing the float to remain connected and rotate to lie along the machine body for storage, with a pin connecting the float to the rod and a rotation limiter to maintain the float's horizontal posture, facilitating easy storage without detachment.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Volume of moving object
If the float is detached from the rod for storage, then the jack device can be stored in the storage space, but the labor for storage increases
Solution Approach 1:
The float is made rotatable relative to the rod through a rotation mechanism, allowing it to dynamically change its orientation. This enables the float to be positioned in different attitudes (horizontal or tilted) without detachment, resolving the contradiction by maintaining connection while achieving compact storage configuration
Solution Approach 2:
The connection between the float and rod is segmented into a rotatable joint rather than a fixed rigid connection. This segmentation allows independent movement and repositioning of the float relative to the rod, enabling the float to be oriented horizontally for storage while remaining connected
2Reliability
If the cylinder is in upright posture, then the jack device can lift the machine body effectively, but the jack device cannot be stored in the storage space
Solution Approach 1:
The cylinder is designed with rotatable connections that allow it to dynamically change between upright posture (for lifting operation) and tilted posture (for storage). This dynamic reconfigurability resolves the contradiction by maintaining lifting reliability when needed while achieving compact storage configuration when not in use
Solution Approach 2:
The cylinder's orientation is changed from a fixed vertical dimension to a variable three-dimensional configuration. By introducing rotational freedom, the cylinder can be oriented vertically for operation and tilted at angles for storage, effectively utilizing the storage space while maintaining lifting function
3Device complexity
If the float is fixed to the rod, then the structure is simple, but the float cannot rotate to lie along the machine body for storage
Solution Approach 1:
The fixed connection between float and rod is segmented into a rotatable joint with minimal components. This simple segmentation maintains structural simplicity while enabling the float to rotate and lie along the machine body for convenient storage
Solution Approach 2:
A simple rotation mechanism is introduced to allow the float to dynamically adjust its orientation relative to the rod. This dynamic capability enables storage convenience without significantly increasing structural complexity
Data Source
AI summary
Provided is a jack device easily storable in a storage space of a machine body of a work machine. The jack device includes an arm, a cylinder, a float and a pin. The arm is rotatably connected to the machine body. The cylinder is connected to the arm rotatably about a cylinder rotary axis so as to have an upright posture and a tilt posture. The pin rotatably connects the float to a rod of the cylinder. The jack device is stored in a state where the cylinder is contracted and in the tilt posture and the bottom surface of the float lies along a facing part of the machine body that faces the storage space.