Ejector Lever Unlocking Hook Rotation Eliminates Sliding Friction
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Solution Overview
Problem
The conventional ejector lever unlocking process experiences significant sliding friction between the unlocking hook and the panel, making the unlocking process laborious and difficult.
Innovation Solution
The ejector lever incorporates an unlocking mechanism with a safety latch and an unlocking hook, where the safety latch applies a force to the unlocking hook to rotate it out of contact with the panel, avoiding sliding friction by using a meshing tooth mechanism and a spring to facilitate easy release.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If the unlocking hook performs rectilinear translational motion to disengage from the panel, then the unlocking function is achieved, but significant sliding friction is generated making the process laborious
Solution Approach 1:
Instead of translating the unlocking hook linearly to disengage from the panel, the patent inverts the approach by rotating the unlocking hook around a rotating shaft. The hook transitions from a translational disengagement mechanism to a rotational one, where the hook rotates to lift the ejector lever off the panel, thereby eliminating sliding friction and reducing the force required for unlocking.
Solution Approach 2:
The patent replaces the rectilinear translational motion mechanism with a rotational motion mechanism. By introducing a rotating shaft and enabling the unlocking hook to rotate rather than translate, the system substitutes a high-friction sliding contact with a low-friction rotational contact, significantly reducing the effort needed for unlocking.
2Loss of time
If the unlocking hook is pushed to perform rectilinear translational motion, then unlocking is achieved, but the pushing process becomes laborious due to large friction
Solution Approach 1:
The patent inverts the unlocking mechanism from a push-based translational motion to a rotate-based motion. Instead of pushing the hook linearly to disengage it, the user rotates the unlocking hook around a shaft, which causes the hook to lift and release the ejector lever. This inversion eliminates the laborious pushing action and reduces unlocking time.
Solution Approach 2:
The patent introduces dynamic rotational motion to the unlocking process. The unlocking hook is designed to rotate around a rotating shaft, transforming the static push-action into a dynamic rotational action. This dynamic approach allows the hook to smoothly disengage from the panel with minimal force, reducing both the effort required and the time needed for unlocking.
3Device complexity
If the sliding buckle is pressed against the inner side wall under spring force, then the unlocking mechanism is compact, but the friction increases making movement difficult
Solution Approach 1:
The patent inverts the motion direction of the sliding buckle and unlocking hook from linear pressing against the wall to rotational movement around a shaft. By rotating the unlocking hook and moving the sliding buckle radially rather than linearly against the cavity wall, the design maintains compactness while eliminating the high-friction sliding contact that made the mechanism difficult to operate.
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 significantly reduces the effort required for unlocking by eliminating sliding friction, making it easier to release the ejector lever from the panel.
Implementation Method 1
one end of the spring 53 abuts against one inner side wall of the cavity A, and the other end thereof abuts against the sliding buckle 52, so as to enable the sliding buckle 52 to be pressed against the other inner side wall of the cavity A under action of elastic force of the spring 53
Implementation Method 2
the head 31 is rotatably connected to the board 1 using a rotating shaft 33, such that the ejector lever 2 can rotate around the rotating shaft 33
Implementation Method 3
As the ejector lever 2 further rotates, the frame 4 applies reaction force F on the ejector lever 2, so as to enable the board 1 to be released from a board slot
Data Source
AI summary
An ejector lever includes a lever body and an unlocking mechanism, where the unlocking mechanism includes an unlocking hook and a safety latch, the unlocking hook is rotatably connected to the lever body using a first rotating shaft, and the safety latch is rotatably connected to the lever body using a second rotating shaft. The unlocking hook is provided with a first end and a second end, the first end is opposite to the second end across the first rotating shaft, the first end is provided with a hook, the second end is provided with a first abutting part, the safety latch is provided with a second abutting part, and the first abutting part is in contact with the second abutting part; and the second abutting part is configured to apply first force on the first abutting part when the safety latch rotates around the second rotating shaft.