Pivot Block Telescopic Cam Adjustment Mechanism
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Solution Overview
Problem
Existing pivot blocks for folding panels require manual adjustment and fixing, which can be cumbersome and lack efficient mechanisms for precise alignment and secure positioning.
Innovation Solution
A pivot block with telescopic movement and a cam mechanism allows for adjustable positioning of the pivot bolt, secured by a fastener and lock assembly, enabling precise alignment and secure fixing within the track, while a dress plate hides the mechanism for aesthetic purposes.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If manual adjustment and fixing of the pivot block is used, then the block can be positioned in the track, but the adjustment process is cumbersome and lacks efficient mechanisms for precise alignment
Solution Approach 1:
The pivot block incorporates a telescopic mechanism with a cam follower that converts rotational cam movement into linear telescopic movement. This dynamic mechanism allows the first part to extend or retract relative to the second part, enabling precise adjustment of the pivot bolt position along the track without manual sliding and securing operations
Solution Approach 2:
A cam mechanism acts as an intermediary between the rotational input (cam follower rotation) and the linear adjustment output (telescopic movement of the first part). The cam profile translates rotational motion into controlled linear displacement, providing precise and efficient position adjustment of the pivot block
2Measurement precision
If the pivot block uses a telescopic mechanism with cam follower, then precise adjustment is enabled, but the device complexity increases
Solution Approach 1:
The pivot block is divided into two distinct parts: a first part containing the pivot bolt and telescopic mechanism, and a second part that interfaces with the track. This segmentation allows the complex telescopic function to be isolated in the first part while the second part maintains a simpler track-mounted structure, making the overall system more manageable and maintainable
Solution Approach 2:
The cam follower mechanism provides precise positioning through its geometric profile, where the cam shape directly determines the telescopic displacement. This dynamic geometric control achieves high positioning precision without requiring complex electronic sensors or actuators, maintaining mechanical simplicity while delivering precise adjustment
3Reliability
If the pivot block is secured with connectors and fasteners, then secure positioning is achieved, but the adjustment and fixing process becomes more complex
Solution Approach 1:
The pivot block is designed so that the first part can be telescopically adjusted to the desired position before final securing. The telescopic mechanism allows preliminary positioning and alignment to be completed easily, after which the fastener and connectors provide reliable permanent fixation. This separates the adjustment phase from the securing phase, making each operation simpler
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
Facilitates easy and precise adjustment and secure positioning of the pivot bolt, enhancing operational efficiency and aesthetics by allowing telescopic movement and secure locking within the track.
Implementation Method 1
the pivot block includes a cam mechanism that operates between the first and second parts to drive the lengthwise movement of the first part relative to the second part
Implementation Method 2
the cam has a shaft that can be accessed through a base of one of the parts and an eccentric boss associated with the shaft that drives the follower when the shaft is rotated
Implementation Method 3
the keeper is biased into engagement with the collar
Implementation Method 4
the first part includes a threaded passage for screw-threaded engagement of the bolt
Data Source
AI summary
A pivot block including a first part for holding a bolt of an associated folding panel, and a second part that is able to be fixed to a track so as to position the first part and the bolt at a location whereby the folding panel is able to pivot about pivot bolt, wherein the first part is moveable relative to the second part lengthwise of the track, for adjustment of the position of the pivot bolt.