Ratchet Device Direction Control Mechanism
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Solution Overview
Problem
Conventional ratchet devices face issues with unstable operation direction switching, idle rotation, and high operational force due to the design of the rotatable disc and lack of a fitting trench on the control member, making it difficult to change direction and operate efficiently with various tools.
Innovation Solution
A ratchet device design featuring a base with a rotatable driving loop, actuation elements, and a direction control mechanism that includes a ratchet head, retainers, and a second fitting portion on the base to accommodate drive tools, preventing idle rotation and reducing operational force by allowing easy direction switching and tool compatibility.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If the rotatable disc extends out of the top of the base to enable direction switching, then the operation direction can be changed, but idle rotation occurs when the user's hand accidentally touches the disc
Solution Approach 1:
The patent introduces a control member as an intermediary between the user's hand and the rotatable disc. The control member includes a pushing portion that the user presses to rotate the disc, while the disc itself does not extend outward. This mediator prevents accidental touching and idle rotation while maintaining directional control functionality.
2Adaptability or versatility
If the quadrangular column is fitted with the socket to drive bolt connection, then the bolt can be connected or removed, but the device cannot match with other drive tools such as tool bars
Solution Approach 1:
The patent makes the base itself universal by equipping it with a second fitting portion that can accommodate various drive tools including tool bars and sockets. The base can directly receive different types of drive tools without requiring the control member's quadrangular column to be fitted with specific sockets, enabling multi-functionality and adaptability.
3Ease of operation
If the rotatable disc extends out of the top of the base, then direction control is enabled, but the second end of the base is occupied and cannot accommodate drive tools
Solution Approach 1:
The patent segments the direction control function from the drive tool accommodation function. The direction control is achieved through the control member with pushing portion that operates the rotatable disc internally, while the second end of the base is freed to accommodate various drive tools. This segmentation allows both functions to coexist without spatial conflict.
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 ratchet device achieves stable operation direction switching and reduced operational force by utilizing a rotatable driving loop and actuation elements to engage and disengage the ratchet head, preventing idle rotation and enabling efficient bolt connection and removal with various tools.
Implementation Method 1
The first pushing element is pushed by the first resilient element to act on the at least one engagement portion
Implementation Method 2
The second pushing element is pushed by the second resilient element to act on the at least one retainer
Data Source
AI summary
A ratchet device contains: a base, a ratchet head, at least one retainer, and a direction control mechanism. The base includes at least one accommodation portion. The ratchet head is accommodated in the at least one accommodation portion and includes a first fitting portion and a toothed portion. The at least one retainer is accommodated in the at least one accommodation portion and includes at least one locking tooth. The direction control mechanism includes a rotatable driving loop having at least one engagement portion, and the direction control mechanism includes at least one actuation element. Each of the at least one actuation element has a first pushing element and a second pushing element, wherein the first pushing element is biased against each of the at least one engagement portion, and the second pushing element abuts against each of the at least one retainer.