Sunshade Base Swivel Seat with Pedal Braking Mechanism
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Solution Overview
Problem
Conventional sunshade bases are bulky, heavy, and inconvenient to move and adjust, as they require significant effort to turn the support tube for angular position changes and are difficult to maneuver due to their weight and design.
Innovation Solution
A sunshade base with a swivel seat, retaining member, and braking device that allows easy adjustment of the support tube's angular position through a pedal-operated mechanism, combined with wheel assemblies for easy movement, enabling the base to be raised and lowered for mobility.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the base has a seat to which the support tube is screwed, then the sunshade is stable, but it is difficult to turn the base while the support tube is attached
Solution Approach 1:
The base is divided into two functional parts: a stationary base body that provides stability, and a rotatable swivel seat that allows easy adjustment. The support tube is attached to the swivel seat, which can rotate independently on the base, separating the stability function from the rotation function.
Solution Approach 2:
The swivel seat acts as an intermediary component between the base and the support tube. It provides a rotating interface that mediates between the stable base and the adjustable support tube, allowing rotation without moving the entire base.
2Reliability
If the base has considerable weight, then it provides stable support, but it is difficult and inconvenient to move the sunshade to a desired position
Solution Approach 1:
The base incorporates wheel assemblies that can be deployed from a retracted position to a ground-contacting position. This dynamic transformation allows the base to switch between a stable stationary state and a mobile state with reduced friction, enabling easy movement when needed while maintaining stability when stationary.
3Ease of operation
If the base is raised above the ground using wheel assemblies, then easy movement is enabled, but the base becomes less stable when wheels contact the ground
Solution Approach 1:
The wheel assemblies are designed to be deployable rather than permanently extended. They can be raised to contact the ground for movement, then retracted to a storage position that raises them off the ground, dynamically adjusting the base's interaction with the ground to balance mobility and stability needs.
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 convenient adjustment of the sunshade's angular position and easy movement of the base to desired locations, reducing user effort and improving usability by allowing the base to be raised for easy transport.
Implementation Method 1
The means for biasing the second end of the braking arm to engage with the retaining member includes an elastic element mounted around the rod
Implementation Method 2
the through-hole further includes a bearing receiving section for receiving a bearing through which the lower tubular section extends
Data Source
AI summary
A sunshade base includes a base, a swivel seat to which a support tube of a sunshade is mounted, a retaining member fixed to the swivel seat, and a braking device. The swivel seat includes a flange rotatably received in a recessed portion of a top face of the base. The braking device is mounted in the base and includes a rod movable in the base and a braking arm having a first end fixed to the rod and a second end releasably engaged with the retaining member. The second end of the braking arm is biased to engage with the retaining member to thereby lock the swivel seat. The rod is operable to disengage the second end of the braking arm from the retaining member to thereby allow free rotational movement of the swivel seat relative to the base.