Swivel Wheel Spindle Housing Clamp for Zero Turn Mower Attachments
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Solution Overview
Problem
Zero turn lawn mowers lack a convenient means to attach useful accessories, limiting their versatility and functionality despite their maneuverability and horsepower.
Innovation Solution
The introduction of swivel wheel spindle housing clamps that securely attach rectangular steel tubes to zero turn lawn mowers, allowing for various attachments such as hitch balls, carrier platforms, and snow blades without requiring tools, by utilizing a carriage bolt with a rubber-coated plastic knob to secure the tubes between the clamp plates.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If zero turn lawn mowers are designed without hitches or attachment means to maintain simplicity and maneuverability, then ease of operation is improved, but adaptability deteriorates
Solution Approach 1:
The clamp system nests within the existing spindle housing structure of the zero turn lawn mower. The clamp's semicircular opening fits over the cylindrical spindle housing, and the carriage bolt mechanism nests within the clamp body itself. This nesting approach allows attachment capability to be added without external hitches, maintaining the mower's compact and maneuverable design while enabling versatile attachments through the clamp- tube-attachment nested structure.
Solution Approach 2:
The clamp design provides universal attachment capability by accommodating rectangular steel tubes of various sizes and configurations. The semicircular opening fits different spindle housing diameters, and the adjustable carriage bolt mechanism secures various tube dimensions. This universal clamp-tube system enables multiple attachment types (hitch balls, carrier platforms, snow blades, leaf rakes) to be mounted on the same mower, achieving multi-functionality without compromising maneuverability.
2Adaptability or versatility
If spindle housing clamps are designed to fit various spindle housing diameters to improve adaptability, then adaptability is improved, but manufacturing precision deteriorates
Solution Approach 1:
The clamp incorporates a flexible adjustment mechanism through the carriage bolt and knurled knob assembly. The clamp body can be dynamically adjusted to fit different spindle housing diameters by tightening or loosening the carriage bolt, which compresses the clamp's flexible material or adjusts the gripping force. This dynamic adjustment capability allows a single clamp design to accommodate a range of spindle housing sizes while maintaining secure fit through operator-controlled precision rather than manufacturing precision.
3Ease of operation
If tool-free attachment mechanism is used to improve ease of operation, then ease of operation is improved, but device complexity deteriorates
Solution Approach 1:
The attachment mechanism is designed for self-service operation by the end user without requiring tools or specialized skills. The carriage bolt with external threads and knurled knob allows direct hand-tightening to secure the rectangular steel tube. The clamp's semicircular opening self-aligns with the cylindrical spindle housing, and the carriage bolt mechanism self-adjusts to clamp various tube sizes. This self-service design achieves tool-free operation while keeping the mechanism relatively simple, relying on basic mechanical principles rather than complex actuators or smart systems.
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
Enables zero turn lawn mowers to support a range of attachments, enhancing their capability to perform tasks like towing, hauling, and snow removal without interfering with daily use, and accommodating different spindle housing sizes through adjustable mounting angles.
Implementation Method 1
A carriage bolt with a spin-on, rubber coated, plastic knob is used to squeeze together each plate of said housing clamp
Implementation Method 2
squeeze together each plate of said housing clamp, and thus securing said rectangular steel tube between each said plate
Data Source
AI summary
Swivel wheel spindle housing clamps provide an easy way, without drilling holes, to attach a steel rectangular horizontal tube across a front of zero turn lawn mowers. The clamps fasten to a spindle housing by tightening two set screw bolts of the clamp against one side of the spindle housing. The same spindle housing clamp fits both left spindle housing and the right spindle housing of the lawn mowers. The clamps fit small to large spindle housings. A pair of housing clamps can remain on the zero turn lawn mower all year long and not inhibit normal use. Carriage bolts and large, rubber coated, threaded knobs are provided so wrenches are not needed to lock the rectangular steel tube inside the pair of housing clamps. The rectangular steel horizontal tube can support a variety of useful attachments, including a ball hitch, a carrier platform, a snow blade, a leaf rake, or other useful devices.