Throttle Grip Sealing Structure for Waterproof Torque Control
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Solution Overview
Problem
Existing throttle grip devices face challenges in achieving effective waterproofing and dustproofing due to gaps between the interlocking member and the case, and difficulty in setting operating torque according to vehicle requirements.
Innovation Solution
A throttle grip device with a cylindrical interlocking member extending to the case's bottom side end, sealed by multiple seal members, and an urging mechanism to set operating torque, along with selectively attachable seal and resistance force application means to achieve waterproofing, dustproofing, and torque adjustment.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a seal member or seal structure is formed between the interlocking member and the case to improve waterproofing and dustproofing, then the sealing effectiveness is improved, but the device complexity increases and the gap location in the case makes certain sealing difficult
Solution Approach 1:
The patent extracts the sealing function from the case structure and relocates it to the interlocking member by adding a sealing portion with a seal member. This allows the seal to be positioned at the engaging portion where it can effectively seal the gap between the interlocking member and case, resolving the difficulty of sealing at the gap location while maintaining reliability.
Solution Approach 2:
The patent introduces a seal member as an intermediary element between the interlocking member and the case. This seal member fills and seals the gap formed during rotation, providing waterproofing and dustproofing without requiring complex seal structures integrated into the case itself.
2Adaptability or versatility
If different resistance force application means are prepared and attached according to various vehicle requirements to set operating torque, then the adaptability to different vehicle types is improved, but the device complexity and cost increase
Solution Approach 1:
The patent makes the resistance force application means adjustable and selectable rather than fixed. By allowing the resistance value to be changed based on vehicle requirements, the system achieves adaptability to different vehicle types without requiring completely different resistance force application means for each application.
Solution Approach 2:
The patent creates a universal resistance force application means that can serve multiple vehicle types and torque requirements. Through adjustment mechanisms or selectable configurations, a single resistance force application means design can accommodate various operating torque requirements across different vehicle applications.
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 device ensures stable rotation and effective sealing, achieving waterproof and dustproof effects while allowing easy adjustment of operating torque to meet vehicle requirements.
Implementation Method 1
a seal member sealing the gap between the interlocking member and the case
Implementation Method 2
an urging means configured to urge the interlocking member toward an initial position during rotation of the throttle grip
Implementation Method 3
a friction material assembled in a state of being in contact with a sliding surface of the interlocking member
Data Source
Figure 1~2
Figure 3
Figure 4~5
AI summary
Provided is a throttle grip device that is capable of easily sealing a gap between an interlocking member and a case to certainly achieve a waterproof effect and a dustproof effect. A throttle grip device includes: an interlocking member 2 being able to rotate in conjunction with a throttle grip G; a case 1, the interlocking member 2 being rotatably held by the case 1; a cover member 11 covering an opening side end portion N1 of the case 1, the cover member 11 having an opening portion 11a allowing a surface end portion F1 having an engaged portion 2a of the interlocking member 2 to face the throttle grip G; and a magnetic sensor 9 capable of detecting a rotation angle of the throttle grip G by detecting a rotation angle of the interlocking member 2, a drive source of a vehicle being controllable according to the rotation angle of the throttle grip G detected by the magnetic sensor 9. The interlocking member 2 further includes a cylindrical portion 2e extending to a bottom side end portion N2 of the case 1.