Transmission Oil Guide Tool Installation
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Solution Overview
Problem
The existing installation structure of lubricating oil collecting and guiding devices in transmission cases requires a pressing force to be applied near the locking piece, which reduces the operability due to the need for the operator to insert their hand into a narrow space within the transmission case.
Innovation Solution
A lubricating oil collecting and guiding device with a long gutter-shaped main unit and multiple held parts, where the first held part is tightly fitted on the open side end face and the second held part is loosely fitted on the bottom side, allowing for easier installation without the need for a press-in operation into the transmission case.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a push-in-type locking piece is used on the bottom part side of the transmission case, then the oil path can be securely fixed, but the operator must insert hand into narrow space to apply pressing force, degrading operability
Solution Approach 1:
The invention divides the fixing function into two separate held parts: a first held part for secure fixing and a second held part for positioning. This segmentation allows the pressing operation to be performed at the open side end face where space is accessible, while the bottom part only requires simple insertion without hand access, thus resolving the contradiction between reliable fixing and ease of operation
Solution Approach 2:
The invention changes the dimension of the installation operation by moving the pressing operation from the bottom part (where hand access is difficult) to the open side end face (where hand access is easy). The second held part performs positioning in one dimension (insertion into bottom hole) while the first held part performs fixing in another dimension (pressing at open side), thereby improving operability without compromising fixing reliability
Data Source
Figure 1~2
Figure 3~4
Figure 5~6
AI summary
An oil path (9) as a lubricating oil collecting and guiding device is provided with a long gutter-shaped main unit (9A), a press-in pin part (21) pushed into a press-in hole (22) formed on an open side end face (4a) of a transmission case (4), and an insertion pin part (24) inserted into an insertion hole (25) formed on a bottom part side of the transmission case (4). By this, the operation of installation on the bottom part side of the transmission case (4) during installation of the oil path (9) on the transmission case (4) includes only inserting the insertion pin part (24) into the insertion hole (25) of the transmission case (25), the operator therefore no longer needs to insert a hand deeply inside the transmission case (4) for the operation, and the operability of installation of the oil path (9) on the transmission case is improved.