Binding Device with Dynamic Clamping Jaw Adjustment
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Solution Overview
Problem
Existing binding devices require additional manufacturing effort and complex work steps due to the need for presetting to accommodate channels of different widths, which complicates the binding process.
Innovation Solution
A binding device with a three-phase binding process where the first clamping jaw moves towards the channel, then the carriages move counter to the feed direction to rest against a stop element, and finally, the channel is deformed by advancing the first clamping jaw, allowing for varying channel widths without presetting, using cam disks and tooth profiles to automate distance adjustment.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a mechanical presetting device is mounted in the frame to vary the distance between clamping jaws, then the binding device can adapt to channels of different widths, but the manufacturing effort and complexity of the binding process increase
Solution Approach 1:
The invention makes the distance between the clamping jaws dynamically adjustable during the binding process rather than requiring a complex presetting mechanism. The first clamping jaw is connected to pull arms that can pivot, allowing the jaw position to be varied dynamically based on channel width without adding significant structural complexity
Solution Approach 2:
The binding device is segmented into independent functional components: the first clamping jaw connected to pull arms, the second fixed clamping jaw, and the hand lever mechanism. This segmentation allows each component to perform its specific function independently, simplifying the overall structure while maintaining adaptability
2Ease of operation
If the distance between clamping jaws is significantly greater than channel width before binding, then the channel can be placed simply on the bed, but the travel distance of the first clamping jaw increases before clamping begins
Solution Approach 1:
The pull arms are pre-positioned in a retracted state before binding, with the first clamping jaw already close to the channel. When the hand lever is actuated, the pull arms pivot to advance the first clamping jaw directly onto the channel, eliminating unnecessary travel distance while maintaining easy placement capability
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
Enables binding of documents in channels of different sizes with a simpler structure and reduced manufacturing effort, ensuring stability and precise positioning during the binding process.
Implementation Method 1
the stop elements are cam disks, which are rotatably mounted in the frame on an axis of rotation and are rotated by means of a gear by a linear movement of the first clamping jaw
Implementation Method 2
The cam discs expediently each have a circumferential tooth profile, and the carriages each have complementary tooth profiles for engaging in the tooth profiles of the cam discs
Implementation Method 3
A hand lever (18) which projects upwards from the frame (12) and can be pivoted to a limited extent about a first pivot axis (24)
Implementation Method 4
the first clamping jaw (34) at its ends (36) with two pull arms (30) are connected, which extend laterally at a distance from one another in a feed direction past bed (32) to hand lever (18) and are connected by means of a second pivot axis (28) mounted in them
Data Source
Figure 1
Figure 2
Figure 3a
AI summary
The device (10) has a clamping jaw (34) connected with pulling arms (30) at an end (36) of the jaw. The arms extend to a bed (32) laterally past to a hand lever at distance to each other in feeding direction of the jaw. The arms are connected via a rotation axis (28), which is associated with the hand lever. Another rotation axis (24) is rotatably supported in a sliding carriage (26) in a support frame (12) along the feeding direction, where the carriage is movably guided against restoring force. The frame has a stop element (60) limiting movement of the carriage against the feeding direction.