Elastic Hooking Pawl Mounting Structure for Vehicle Parts
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Solution Overview
Problem
The existing mounting process for vehicle parts, such as assist grips, requires significant man-hours and labor to transition from a temporarily fixed state to a permanently fixed state, as it necessitates rotating the grip body to expose and deform the cap for proper locking, which is inefficient and time-consuming.
Innovation Solution
A mounting structure featuring a base with an elastic hooking pawl that interferes with the cap's insertion path, allowing the cap to be permanently fixed by applying load, thus eliminating the need for rotating the grip body and reducing the number of steps required for mounting.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the cap is covered by the recess to prevent deformation and erroneous fixing, then reliability is improved, but the mounting process complexity increases due to the need to rotate the grip body to expose the cap
Solution Approach 1:
The invention extracts the cap from the coverage of the recess, allowing the cap to remain exposed and accessible throughout the mounting process. This eliminates the need to rotate the grip body to expose the cap, while still preventing erroneous fixing through the elastic hooking pawl mechanism that restricts cap movement until proper installation conditions are met
Solution Approach 2:
The invention introduces an elastic hooking pawl as an intermediary mechanism between the cap and the mounting hole. This pawl restricts the insertion path of the cap, preventing it from moving directly to the permanently fixed position without proper deformation, thus ensuring reliable mounting without requiring complex rotational steps
2Ease of operation
If the cap is exposed to allow deformation for permanent fixing, then ease of operation is improved, but the cap may be deformed erroneously during conveyance
Solution Approach 1:
The invention prepares the mounting structure in advance by positioning the elastic hooking pawl to restrict the cap's insertion path. This preliminary restriction prevents erroneous deformation during conveyance, while still allowing intentional deformation when the cap is properly inserted and the elastic lockable part is pressed by the internal wall of the mounting hole
3Reliability
If multiple steps are required to mount the cap, then reliability is improved, but productivity decreases due to increased man-hours
Solution Approach 1:
The invention merges the cap deformation step with the cap insertion step into a single integrated operation. As the cap is inserted into the mounting hole, the elastic lockable part is automatically pressed by the internal wall, causing automatic deformation and locking in one continuous motion, thereby eliminating separate deformation steps and reducing man-hours while maintaining reliable mounting
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 solution enables the cap to be shifted from a temporarily fixed to a permanently fixed position in a single step, significantly reducing the man-hours needed for mounting parts by allowing the cap to be permanently fixed without exposing it, thereby simplifying the process and saving labor.
Implementation Method 1
each of the elastic lockable parts of the clip is elastically deformed toward the inside of the internal space by an internal wall of the mounting hole
Implementation Method 2
a base has an elastic hooking pawl configured to restrict entry of the cap into the permanently fixed position by its being disposed in an interference area that interferes with an insertion path
Data Source
AI summary
A mounting structure comprises a part with a base, a mounting member with a mounting hole, a clip and a cap. The base has a temporary fixing part configured to fix the cap in a temporary fixed position, a permanent fixing part configured to locate the cap in a permanent fixed position, and an elastic hooking pawl configured to restrict entry of the cap into the permanent fixed position by interfering with insertion of the cap when held in the temporary fixed position. When the cap is inserted from the temporary fixed position to the permanent fixed position, each of the elastic lockable parts of the clip are deformed toward a mounting hole and press against the elastic hooking pawl such that the elastic hooking pawl does not interfere with the insertion path of the cap from the temporary fixed position to the permanent fixed position.