Bookbinding Holder Arm Brake for Safe Staple Loading
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Solution Overview
Problem
Existing bookbinding machines require complex manual handling and lack user-friendly features, making them difficult to operate and potentially hazardous due to uncontrolled movements.
Innovation Solution
A bookbinding machine with a pivotable holder arm, a brake system, and a protective cover, along with manual or electric drive mechanisms, enhances user comfort and safety by facilitating easy loading and secure operation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If a pivotable holder arm is used to facilitate loading, then ease of operation is improved, but uncontrolled falling may cause harm
Solution Approach 1:
The brake system is positioned to act against the gravitational force before the holder arm can fall uncontrolled. The brake segments are arranged to engage with the holder arm's movement path, creating friction that counteracts gravity's pulling force and prevents harmful falling motion.
Solution Approach 2:
The patent converts the harmful gravitational force into a beneficial feature by using gravity to assist the holder arm's return movement. The holder arm is designed to be turned over the vertical line in its loading position, allowing gravity to facilitate its return to the closed position, while the brake controls the potentially harmful aspect of this gravitational action.
2Ease of operation
If the holder arm is made pivotable for easy loading, then ease of operation is improved, but device complexity increases
Solution Approach 1:
The holder arm is designed with dynamic characteristics, being pivotable between different positions (loading and closed). This dynamic design allows the same component to serve multiple functions: facilitating easy loading when in the loading position and providing structural support when in the closed position, thereby reducing the need for additional separate components.
Solution Approach 2:
The pivotable holder arm serves multiple functions within the bookbinding machine. It acts as both a loading mechanism and a structural support element, and the brake system serves both to control falling and to assist in positioning. This multi-functionality reduces overall device complexity despite the added pivotability.
3Reliability
If a brake system is added to control movement, then safety is improved, but device complexity increases
Solution Approach 1:
The brake system is designed to be self-regulating through friction-based control. The brake segments automatically engage and disengage based on the holder arm's movement, without requiring complex external control mechanisms. The friction between the brake segments and the holder arm naturally provides the necessary control force, simplifying the overall control system.
4Ease of operation
If the holder arm is turned over the vertical line for gravity-assisted retaining, then ease of operation is improved, but manufacturing precision requirements increase
Solution Approach 1:
The patent optimizes the angular parameter of the holder arm's positioning. By setting the holder arm to be turned over the vertical line by a specific angle (between -93 to -105 degrees from the horizontal line), the system achieves gravity-assisted retaining while maintaining reasonable manufacturing tolerance ranges. This parameter optimization balances ease of operation with manufacturability.
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
Improves user comfort and safety by allowing easier handling and reducing the risk of injury, while ensuring high-quality bookbinding with improved alignment and nipping precision.
Implementation Method 1
an adhesive spreader roller, having a patterned adhesive collection surface and arranged below the adhesive tank such that rotation of the roller about its longitudinal axis captures adhesive from the tank onto the adhesive collection surface and, when the adhesive on the adhesive collection surface is in contact with a spine edge of a staple of sheets that is to be bound to a book, spreads the adhesive onto the spine edge
Implementation Method 2
The brake may preferably comprise segments (which preferably are arranged on a circular segment, or especially in circular arc) i) with increased friction in the rotational direction
Implementation Method 3
the pivotable holder arm in its loading position may be turned over the vertical line, such that the pivotable holder arm remaining open is facilitated by gravity
Data Source
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AI summary
To increase productivity and user comfort, it is suggested that a bookbinding device (10) that comprises a frame, comprising a guide rail (1003), and an adhesive tank (1001), the adhesive preferably being or comprising heated PUR or melt EVA that is movable back and forth along the guide rail (1003), and an adhesive spreader roller (1002), having a patterned adhesive collection surface and arranged below the adhesive tank (1001) such that rotation of the roller (1002) about its longitudinal axis captures adhesive from the tank (1001) onto the adhesive collection surface and, when the adhesive on the adhesive collection surface is in contact with a spine edge (504) of a staple (501) of sheets that is to be bound to a book, spreads the adhesive onto the spine edge (504), further comprises a rotatable staple holder (20) which is suitable for receiving a staple (501) of sheets, the staple holder (20) comprising a pivotable holder arm (22) that in a first position is in a loading position to facilitate placing of the staple (501) of sheets to the holder (20), and in a second position is in a closed position.