Bolt With Limiting Path For Sliding Sleeve Stability
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Solution Overview
Problem
Existing bolts for clamping adjacent parts with openings face issues where the sliding sleeve can be pushed off or clamping elements can tilt due to loose threaded spindles, leading to jamming or uncontrolled movement.
Innovation Solution
A safety device, such as locking pins interacting with stops on the sliding sleeve, limits its path and secures it to the bolt-like part, preventing complete displacement and tilting, ensuring stable clamping even when the threaded spindle is loosened.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If the sliding sleeve is made displaceable in the longitudinal direction for clamping operation, then the clamping function is improved, but the sliding sleeve can be completely pushed off when the threaded spindle is loosened, leading to jamming
Solution Approach 1:
The patent applies preliminary anti-action by providing a safety device (limiting path structure) that prevents the sliding sleeve from being completely pushed off in the opposite direction of its intended movement. The limiting path in the bolt-like part restricts the sliding sleeve's displacement range, ensuring it cannot脱离 completely when the threaded spindle is loosened, thus preventing jamming while maintaining clamping functionality
Solution Approach 2:
The patent uses an intermediary approach by introducing a limiting path structure as a mediator between the sliding sleeve and the bolt-like part. This limiting path acts as a constraint mechanism that allows the sliding sleeve to move within a controlled range for clamping operations while preventing excessive displacement that would cause jamming
2Ease of manufacture
If the clamping elements are allowed to move freely when the threaded spindle is loosened, then the bolt can be assembled easily, but the clamping elements can tilt when the threaded spindle is tightened again
Solution Approach 1:
The patent applies preliminary anti-action by providing a limiting path structure that prevents clamping elements from tilting or moving excessively when the threaded spindle is loosened during assembly. The limiting path constrains the movement range of clamping elements, ensuring they remain properly positioned and cannot tilt when the threaded spindle is subsequently tightened
Solution Approach 2:
The patent uses preliminary action by establishing the limiting path structure before the clamping operation. This limiting path is pre-formed in the bolt-like part to guide and constrain the sliding sleeve and clamping elements, ensuring proper positioning is maintained throughout the assembly and tightening process
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
The safety device prevents the sliding sleeve from being completely pushed off and addresses tilting issues, ensuring a stable and secure clamping mechanism, enhancing handling and clamping reliability.
Implementation Method 1
a threaded spindle (8) which can be screwed into the bolt-like part (2) from one end and protrudes beyond the bolt-like part (2) at this end
Implementation Method 2
the threaded spindle (8) has a conical, truncated cone-shaped surface in the region of the clamping elements, which tapers towards the end facing away from the handle
Data Source
Figure 1~4
Figure 5~12
Figure 8~11
AI summary
The bolt (1) has a bolt-like part (2) inserted into openings of parts to be clamped from a side, and a sliding sleeve (5) arranged at an end of the bolt-like part in a rotation-resistant manner, where the sleeve is movable in a longitudinal direction. The bolt-like part projects radially outwards, and a securing device limits a path of the sleeve, where the securing device secures the sleeve at the bolt-like part. The securing device has a securing pin (15) cooperating with a stop (16) arranged at the sleeve, where the sleeve is guided through a sliding surface (12).