Z-Shaped Transport Trolley with Vertical Receptacles
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Solution Overview
Problem
Existing trolleys cause contents in open containers to spill or leak during transport due to their inclined position, and users must adopt an uncomfortable posture, leading to impaired gait and increased effort.
Innovation Solution
A trolley design featuring a vertically aligned frame with a handle and foot forming a Z-like shape, including pivotally held V-shaped receptacles aligned parallel to the wheel axis, ensuring objects hang vertically and are securely held, allowing for comfortable use and balanced weight distribution.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If containers are transported in an inclined position on conventional trolleys, then the trolley structure is simple and easy to manufacture, but the contents of open containers spill or leak
Solution Approach 1:
The patent inverts the conventional trolley design by making the frame substantially vertical rather than inclined. The receptacles are positioned at the top of the vertical frame, allowing containers to hang vertically and maintain upright orientation during transport, preventing spillage while keeping the overall structure relatively simple.
Solution Approach 2:
The patent transitions from a horizontal/inclined trolley configuration to a vertical configuration by extending the frame substantially perpendicular to the ground. This dimensional change allows containers to be suspended vertically at the top of the frame, maintaining their upright orientation and preventing content spillage during transport.
2Ease of operation
If the trolley frame is inclined for transport, then the wheel axle can be positioned at the foot end, but the user must adopt a hunched posture leading to impaired gait
Solution Approach 1:
The patent inverts the conventional inclined trolley design by making the frame substantially vertical. This allows the user to push or pull the trolley while maintaining an upright posture, eliminating the need to hunch over and preventing gait impairment, while the wheel axle remains positioned at the bottom end of the vertical frame.
3Stability of the object's composition
If the foot is positioned close to the ground for stability, then the trolley can be supported upright when parked, but the user's step length is unnaturally shortened increasing injury risk
Solution Approach 1:
The patent positions the foot at the bottom end of a substantially vertical frame, extending downward toward the ground. This vertical positioning allows the foot to provide stable support when the trolley is parked while maintaining sufficient clearance from the ground to allow the user's legs to move freely without obstruction, preventing unnatural gait and potential injuries.
4Adaptability or versatility
If receptacles are positioned close to the frame strut, then the structure is compact, but objects cannot swing freely without hitting the frame
Solution Approach 1:
The patent positions the receptacles at the top end of the substantially vertical frame, inverted relative to conventional designs. This positioning allows objects suspended in the receptacles to swing freely in an arc without striking the frame structure, as there is sufficient clearance between the swinging objects and the vertical frame, while maintaining a compact overall structure.
Data Source
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AI summary
The invention relates to a transport trolley (1) for transporting everyday items equipped with a handle or bracket, wherein the transport trolley (1) has a frame with a vertically oriented frame strut (2), at one end of which a handle (3) is arranged and at the other end of which a foot (4) is arranged, wherein the handle (3) and the foot (4) are designed as struts projecting in opposite directions from the frame strut (2), forming a z-like shape with the frame strut (2), wherein in the area of the foot (4) a wheel axle (5) extending through the frame with wheels (6) rotatably mounted thereon is arranged, and at least one further axle (7) extends through the frame strut (2) in the end area near the handle, at the ends of which pivotably held receptacles (8) for holding handles or brackets of objects are arranged, wherein the further axle (7) is aligned parallel to the wheel axle (5).