Automatic Circulation Binder Push Rod Mechanism
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Solution Overview
Problem
Current automatic loop folders require both hands to open and close, leading to inefficient operation, potential damage, and increased costs, especially when handling multiple paper sheets.
Innovation Solution
An automatic loop folder design featuring a push rod with continuous slots, a positioning sleeve, and a recoil spring, along with a handle and mandrils, allows for single-handed operation through a mechanism involving a connecting rod, turnplate sleeve, and slide pawl sleeve, enabling easy opening and closing.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If both hands are used to open and close the folder by pushing aside the two half-ring elements, then the folder can be securely closed, but the operation becomes complex and requires coordinated two-hand movement
Solution Approach 1:
The patent introduces a push rod as an intermediary mechanism between the user's hand and the half-ring elements. The push rod transmits the closing force uniformly to both hinged plates through mandrels, eliminating the need for coordinated two-hand operation while maintaining secure folder closing. The push rod acts as a mediator that converts single-hand pressure into synchronized movement of both half-ring elements.
Solution Approach 2:
The recoil spring provides self-service by automatically returning the push rod to its initial position after closing operation. The compression spring stores energy during the closing stroke and releases it to reset the mechanism, enabling automatic reset without requiring the user to manually return the components to their starting positions.
2Ease of operation
If both hands are used to operate the folder, then the half-ring elements can be controlled, but the hand feeling is not good and the intensity is not uniform
Solution Approach 1:
The push rod serves as a mechanical intermediary that ensures uniform force distribution to both hinged plates. Through the mandrels passing through continuous slots in the hinged plates, the push rod translates single-hand pressure into synchronized, uniform movement of both half-ring elements, eliminating the uneven intensity and poor hand feeling associated with direct two-hand operation.
3Ease of operation
If both hands are required to operate the folder, then the half-ring elements can be opened and closed, but it becomes inconvenient when the number of paper sheets in the half-ring elements becomes relatively more
Solution Approach 1:
The push rod mechanism enables single-hand operation that remains effective regardless of the number of paper sheets. By providing centralized force application point and uniform distribution to both sides, the mechanism maintains operational convenience and efficiency even when handling thick bundles of paper, which would be cumbersome with traditional two-hand operation.
4Ease of operation
If both hands are used to push aside the half-ring elements, then the folder can be opened and closed, but it requires certain force from hands and increases the risk of damaging the folder
Solution Approach 1:
The push rod acts as a force distribution intermediary that converts concentrated hand pressure into distributed force applied through mandrels to both hinged plates. This reduces peak stresses on individual components, minimizing the risk of damaging the folder structure while maintaining ease of operation through a single pressing motion.
Solution Approach 2:
The recoil spring performs preliminary action by pre-positioning the push rod and mandrels in readiness for the closing operation. The spring is pre-compressed or pre-positioned to ensure that when the user applies force, the mechanism responds immediately and uniformly, reducing the total force required from the user and minimizing stress on the folder components.
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 design facilitates comfortable, convenient single-handed operation while reducing costs and improving usability, especially when handling multiple paper sheets.
Implementation Method 1
there are three embossments on the inner surface of the right end of the supporting drivepipe, which are in parallel with the supporting drivepipe and uniformly distributed, right end of the turnplate sleeve protrudes into the slide pawl sleeve, right end of the slide pawl sleeve is close to the right end of the 1st continuous slot, left end of the turnplate and left end of the slide pawl sleeve are respectively provided with turnplates and slide pawls
Implementation Method 2
the said 2nd slot is equipped with one recoil spring connected with the hinged plates
Data Source
AI summary
Disclosed is an automatic circulation binder, comprising a housing (1), a pair of pivotable hinged plates (2) which are located in the housing (1) and are tightly clamped by the housing (1), and multiple pairs of half ring elements (3) respectively fixed on the pair of hinged plates (2), wherein the half ring element (3) extends out of an upper surface of the housing (1); the automatic circulation binder also comprises a push rod (4) which is located in the housing (1) and capable of moving in an axial direction of the housing, the push rod (4) is located below the hinged plates (2), and a first through groove (5) and a second through groove (6) are successively provided on the push rod (4) from the left to the right in the axial direction of the housing, wherein an automatic rotation push rod locating sleeve (7) is provided in the first through groove (5) and an upper end of the automatic rotation push rod locating sleeve (7) is fixedly connected to an inner surface of the housing (1), a return spring (8) is provided in the second through groove (6), and the return spring (8) is connected to the hinged plates (2); and a plurality of ejection strips (9) are provided on the upper end of the push rod (4), through grooves (10) are correspondingly provided on the hinged plates (2) such that the ejection strips (9) penetrate through the through grooves (10), and snap grooves (11) matched with the front end of the ejection strips (9) are also located on the inner surface of the housing (1). The automatic circulation binder has a simple structure, and a circulating process of opening and closing can be completed by means of circular pushing with one hand, and the operation is comfortable, easy, and convenient, the usage costs are reduced, and the market demands are met.