Torque Arm With Intersecting Bush Axes
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Solution Overview
Problem
Conventional torque arm manufacturing techniques require parallel alignment of bush axes for vulcanization molding, limiting the application to vehicles needing intersecting bush axis configurations.
Innovation Solution
The torque arm design features a connection section with a flat portion parallel to the second bush axis, allowing rubber material to be filled into both spaces through a rubber introduction opening, enabling molding with intersecting bush axes by adjusting the outer tube connection section's width and forming a rubber introduction opening adjacent to the flat portion.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If a pair of rubber material filling passages are provided in the mold for smooth vulcanization molding, then the vulcanization molding process can be completed successfully, but the first and second bushes must be disposed with their axis lines extending parallel to each other, limiting the design flexibility
Solution Approach 1:
The connection section is divided into two halves that are superposed during molding, allowing the mold cavity to be accessed from one side while still forming both bushes. This segmentation enables the rubber material to be introduced through a single filling passage and distributed to both spaces, resolving the contradiction between manufacturing ease and design versatility.
Solution Approach 2:
The invention introduces a flat portion on the connection section that extends in a direction intersecting the first bush axis and parallel to the second bush axis. This dimensional arrangement allows rubber material to flow along the flat portion and enter the second space through a rubber introduction opening, enabling intersecting bush configurations while maintaining a single filling passage system.
2Adaptability or versatility
If the first and second bushes are disposed with intersecting axis lines to accommodate various vehicle types, then the adaptability is improved, but the conventional vulcanization molding technique cannot be applied
Solution Approach 1:
By dividing the connection section into two halves that are superposed during molding, the invention enables the mold cavity to be accessed from one side while still forming both bushes with intersecting axes. This segmentation allows the rubber material to be introduced through a single filling passage and distributed to both spaces, making intersecting bush configurations manufacturable.
Solution Approach 2:
The flat portion on the connection section serves as an intermediary surface that guides the rubber material from the filling passage to the rubber introduction opening in the second outer tube. This intermediate structure enables the rubber to flow along a path that accommodates the intersecting bush axes, resolving the manufacturing difficulty.
3Adaptability or versatility
If the outer tube connection section width is adjusted to accommodate different vehicle types, then the versatility is improved, but the molding process complexity increases
Solution Approach 1:
The connection section is pre-designed with a flat portion and divided into two halves that are superposed before molding. This preliminary arrangement of the mold components and the connection section geometry allows for versatile torque arm configurations to be achieved through a standardized molding process, reducing the actual process complexity despite the versatility gained.
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 design allows for successful vulcanization molding of torque arms with intersecting bush axes, enhancing elasticity and tensile strength while accommodating various vehicle types by adjusting the torque arm's configuration.
Implementation Method 1
the filled rubber material is molded through vulcanization (i.e., molded by cross-linking)
Implementation Method 2
a first rubber-made elastic member is disposed in a first space between the first outer tube and the first inner tube
Data Source
AI summary
A torque arm for an automobile is configured so that the axis of a first bush and the axis of a second bush are arranged so as to intersect each other. The torque arm includes a first outer tube, a second outer tube, and an outer-tube connection section which are each divided into halves. A rubber introduction opening connecting to a second space is formed in the introduction portion of the second outer tube. A rubber material poured toward the upper flat section of an upper outer-tube connection section, which is one of the halves of the outer-tube connection section, is led to the rubber introduction opening while being guided by the upper flat section. The led rubber material is filled into the second space after passing through the rubber introduction opening, and a second rubber elastic body is formed by the rubber material filled into the second space.