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Docking Scale for Self Checkout with Magnetic Capture and Jettison

IP.com Disclosure Number: IPCOM000214190D
Publication Date: 2012-Jan-16
Document File: 4 page(s) / 141K

Publishing Venue

The IP.com Prior Art Database

Abstract

Disclosed is an integrated electromagnet, which assists an operator with both the docking and the un-docking functions for a mobile bagger component of a self-checkout system. The system incorporates a means of sensing in order to determine whether the operator is installing or removing the unit.

This text was extracted from a PDF file.
This is the abbreviated version, containing approximately 52% of the total text.

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Docking Scale for Self Checkout with Magnetic Capture and Jettison

Previous work in this area describes a mobile bagger solution for a self-checkout system that provides a significantly reduced footprint. The mobile bagger uses a docking system with an electrical connector and mechanical latch. In order to disengage the bagger and access the payment devices located behind, the system raises a spring-loaded lever to disengage the latch so that the user can pull the bagger out of engagement. To restore the bagger to the operating position, the operator pushes the mobile cabinet into place, engaging the connector and latch. Both the docking and un-docking operations require significant force from the operator.

This invention uses an integrated electromagnet to assist both the docking and the un-docking operation. The system incorporates a means of sensing in order to determine whether the operator is installing or removing the unit.

The existing docking design uses steel guide pins to locate the bagger unit as it engages the fixed cabinet. The new solution provides wire coils on the receiver. The guide pins are permanent magnets. The self-checkout system controller energizes these coils and controls the direction of the flow of current through them. The design is such that:


• Current flowing in a first direction results in the attraction of the guide pins toward the fixed cabinet


• Current flowing in the opposite direction results in the repulsion of the guide pins away from the fixed cabinet

Sensing means determine whether the system engages or jettisons the mobile bagger.

Figure 1: The receiver configuration

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Figure 2: Connecting mechanisms

Following are example embodiments for implementing the invention.

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Embodiment #1: The sensing means i...