Tripod Head Assembly With Quick-Release Bowl Levelling
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Solution Overview
Problem
The existing bowl clamp mechanism for tripods is cumbersome and difficult to operate, especially when dealing with heavy cameras, as it requires reaching under the tripod to adjust the clamp nut, which is time-consuming and can cause bruised knuckles, and the head assembly is not easily removable or storable.
Innovation Solution
A head assembly with a stud catch mechanism and an adjustment mechanism that allows for levelling and locking of the head portion to the bowl portion using a release lever and drag ring, enabling easier operation and secure attachment without the need for screwing or unscrewing, and allowing the head to be placed on a flat surface after detachment.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a bowl clamp mechanism with clamp nut is used to secure the head to the tripod, then secure attachment is achieved, but operation becomes cumbersome and time-consuming due to reaching under the tripod to screw and unscrew the clamp nut
Solution Approach 1:
The patent replaces the traditional screw-threaded clamp nut mechanism with a quick-release lever system. The lever actuates a drag ring that engages with teeth on the clamp stud, providing secure attachment through mechanical engagement rather than friction from threading. This substitution eliminates the need to reach under the tripod and manually screw/unscrew nuts, while maintaining reliable attachment through the drag ring's tooth engagement.
Solution Approach 2:
The patent divides the clamping function into separate components: the clamp stud with teeth, the drag ring with corresponding teeth, and the lever actuation system. This segmentation allows the locking function to be separated from the adjustment function, enabling quick release without manipulating a single complex clamp nut, thereby improving ease of operation while maintaining security.
2Reliability
If a clamp nut mechanism is used to secure the head, then attachment is achieved, but significant time is required to unscrew and re-screw the clamp
Solution Approach 1:
The drag ring is pre-engaged with the teeth on the clamp stud when the head is attached to the tripod. The lever is positioned to maintain this engagement. When release is needed, the lever is simply moved to disengage the drag ring from the teeth, eliminating the time-consuming process of unscrewing a clamp nut. The preliminary positioning of the drag ring ensures immediate readiness for quick release.
Solution Approach 2:
The screw-threading mechanism is replaced with a lever-actuated drag ring system that engages with teeth. This mechanical substitution transforms the continuous rotational motion required for screwing/unscrewing into a simple linear lever movement, dramatically reducing the time required for attachment and detachment while maintaining secure connection through tooth engagement.
3Reliability
If the clamp nut is operated from under the tripod, then clamping is achieved, but operator strain and bruised knuckles occur due to limited space and awkward positioning
Solution Approach 1:
Instead of having the operator reach under the tripod to operate the clamp (traditional arrangement), the patent positions the lever operation on top of the tripod where the operator naturally positions their hands. The lever pivots on the head assembly and is operated from above, inverting the traditional access direction and eliminating the need to reach into cramped spaces under the tripod legs.
Solution Approach 2:
The drag ring acts as an intermediary mechanism between the lever operation and the clamp stud. The lever on top of the tripod actuates the drag ring, which then engages or disengages from the clamp stud teeth. This intermediary system transmits the operator's force from a comfortable position above the tripod to the clamping function, eliminating direct manual manipulation under the tripod.
4Adaptability or versatility
If the head has a protruding stud on the bottom, then attachment to tripod is enabled, but the head cannot be stood upright on a flat surface after detachment
Solution Approach 1:
The clamp stud serves multiple functions: it provides the attachment interface for the drag ring during tripod use, and it acts as a support point for the head when detached. The head can be stood upright on its clamp stud on a flat surface, eliminating the need to lay it on its side. This multi-functionality allows the same structural feature to enable both attachment and stable storage positioning.
Data Source
Figure 1
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Figure 3~3A
AI summary
A head assembly for a tripod comprising a head portion and a bowl portion releasably connectable to one another, the bowl portion having a clamp stud and the head portion having a stud catch mechanism, wherein the stud catch mechanism is adapted to be releasably connectable to the clamp stud, and wherein the head assembly further comprises an adjustment mechanism adapted to adjust the connection between the head portion and the bowl portion when the head portion and bowl portion are connected to one another.