Ticket Printer Paper Roll Holder with Retractable Spindle
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Solution Overview
Problem
Existing paper roll holders for gaming ticket printers require side clearance for refilling, leading to space inefficiency and vulnerability to theft, as they need to be removed from the machine to replace the paper roll, and lack anti-theft features.
Innovation Solution
A paper roll holder with dual spindle assemblies that allow paper loading without removing the spindle from the machine, featuring a spring-biased spindle actuator with ramps for retracting the spindle, and a ticket bezel with pyramidal teeth to prevent paper theft by tearing the paper if pulled.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If the paper roll holder requires side clearance for refilling, then the paper roll can be replaced, but the floor space consumption increases
Solution Approach 1:
The invention changes the access direction from horizontal (side clearance) to vertical (top opening). The paper roll holder has an opening at the top of the holder body, allowing the paper roll to be inserted or removed from the top direction, thereby eliminating the need for side clearance and reducing floor space requirements.
2Ease of operation
If the spindle must be removed from the machine to replace paper, then the paper can be replaced, but the device complexity increases
Solution Approach 1:
The invention extracts the paper replacement function from the spindle assembly. The holder body has a separate opening that allows direct access to the paper roll without requiring removal of the spindle. The spindle remains fixed in the holder while the paper roll can be independently loaded or replaced through the opening.
3Device complexity
If the paper roll holder lacks anti-theft features, then the structure remains simple, but the security against theft deteriorates
Solution Approach 1:
The invention applies preliminary anti-action by providing preliminary protection against theft through the bezel structure with tearing features. The bezel includes elements that can tear or damage the ticket stock if someone attempts to pull it out, preventing theft before it can be completed. This proactive measure addresses the security vulnerability without requiring complex additional systems.
4Ease of operation
If greater clearance is designed into the machine, then the paper roll can be accessed, but the cabinet size increases
Solution Approach 1:
The invention changes the access dimension from horizontal (requiring side clearance) to vertical (top opening). By providing an opening at the top of the holder body, the design eliminates the need for increased horizontal clearance, allowing compact cabinet design while maintaining ease of paper roll access.
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 paper roll refilling without side clearance, reducing space consumption and preventing theft by allowing secure paper loading and tearing the paper if attempted to be pulled, thus enhancing security and efficiency.
Implementation Method 1
a spring-biased spindle actuator with ramps for retracting the spindle
Implementation Method 2
a ticket bezel with pyramidal teeth to prevent paper theft by tearing the paper if pulled
Data Source
AI summary
The present invention discloses a spindle assembly for a ticket printer which permits the paper roll to be changed without removing the spindle assembly from the ticket printer. The spindle assembly consists of two arms mounted on the printer, on the upper portion of each respective arm is mounted a backing plate from which a spindle protrudes. The spindle may be retracted for loading paper by rotating a spindle actuator which is elevated by two ramps mounted thereon. The elevation of the actuator, which is connected to the spindle, retracts the spindle from the backing plate. An anti-theft ticket bezel is also disclosed, which has teeth incorporated into the ceiling within the opening of the bezel, so that if a ticket is pulled from outside the teeth tear the ticket or cuts it into strips, rendering the ticket useless.