Damper Adjuster Structure Without Guide Bolts
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Solution Overview
Problem
Existing damper apparatuses require multiple guide bolts to prevent the rotation of adjuster components, increasing the number of parts and complexity.
Innovation Solution
The use of a push rod interposed between rising wall parts of a tapered surface to prevent rotation, eliminating the need for additional guide bolts by utilizing the push rod to maintain the adjusting member's position.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If guide bolts are provided to prevent the rotation of the adjuster, then the rotation prevention function is achieved, but the number of parts increases
Solution Approach 1:
The patent combines the rotation prevention function with the existing push rod by adding wall parts to the adjusting member. The push rod serves dual purposes: maintaining the adjusting member's position and preventing its rotation, thereby eliminating the need for separate guide bolts and reducing the total number of parts.
Solution Approach 2:
The push rod is designed to perform multiple functions: it maintains the adjusting member's position during operation and simultaneously prevents its rotation through the wall parts. This multi-functionality eliminates the need for dedicated guide bolts, reducing part count while maintaining reliability.
2Stability of the object's composition
If multiple guide bolts are used to prevent adjuster rotation, then the adjusting member remains stable, but the device structure becomes more complex
Solution Approach 1:
The patent merges the stability function with the push rod by incorporating wall parts that extend in the circumferential direction. These wall parts prevent the adjusting member from rotating while the push rod maintains its position, achieving stability without adding separate guide bolts or complex structural elements.
3Device complexity
If the number of parts is reduced by eliminating guide bolts, then the device is simplified, but the rotation prevention capability may be compromised
Solution Approach 1:
The adjusting member's own structure (the wall parts) provides the rotation prevention capability. The wall parts extend in the circumferential direction to prevent rotation, and the push rod's positioning action works in conjunction with these wall parts to achieve reliable rotation prevention without requiring external guide bolts.
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
This configuration reduces the number of parts required, simplifying the damper apparatus while maintaining effective damping force adjustment capabilities.
Implementation Method 1
a tapered surface part (62, 62A, 62B) with which a tip of a push rod (43) comes into contact and which is formed in a tapered shape with respect to the axis line (CL2) of the adjusting bolt (50, 50A, 50B)
Implementation Method 2
a spring (25) urging the tubular member (31) and the base part (41, 41A, 41B) to be separated from each other
Implementation Method 3
a piston (23) provided at the tip of the rod (42) and generating a damping force when the rod (42) is moved forward and backward
Data Source
AI summary
A damper apparatus includes an adjusting bolt including a head part rotatably stored in an adjusting bolt storage part formed in a base part, and a male thread part including a tip end formed in a male thread shape. An adjusting member includes: a female thread part, which is a part in a female thread shape fastened to the male thread part of the adjusting bolt and movably provided along an axis line of the adjusting bolt; a tapered surface part with which the tip end of a push rod comes into contact and formed in a tapered shape with respect to the axis line of the adjusting bolt; and wall parts rising from both ends of the tapered surface part with reference to the circumferential direction of the adjusting bolt, and interposing the push rod therebetween.