Tear bar for a thermal printer mechanism

Details Tear bar for a thermal printer mechanism Tear bar for a thermal printer mechanism

2000-10-25

2001-12-04

Hilten, John S. (Department: 2854)

Typewriting machines

Sheet or web

For feeding web record-medium

C400S693000, C225S039000, C225S042000, C225S091000

Reexamination Certificate

active

06325558

ABSTRACT:

FIELD OF INVENTION
The present invention relates to a tear bar for a compact printer mechanism, for example, for use within transaction terminals or handheld devices used in point-of-sale (POS) systems and relates, more particularly, to a device comprising a tear bar that features paper tearing effect while, at the same, facilitates mounting of a thermal printer mechanism into a housing of the device without any additional screws or any other fasteners.
BACKGROUND OF INVENTION
Printers used in point-of-sale (POS) systems generally print to rolled paper as the recording medium using a thermal head or other type of print head, and comprise a tear bar that allows the user to tear the paper along continuous, serrated teeth formed on the tear bar to obtain a sales receipt that can be handed to the customer.
In the past, the thermal printer mechanism and the tear bar are components that need to be individually mounted within the housing of a device. Though such an approach is widely known, procedures in assembling such components take time and add expense.
It is thus needed to develop a new approach for mounting the thermal printer mechanism and the tear bar without using any additional screws or any other fasteners so as to provide a quick and inexpensive assembly without affecting the original functions of the tear bar and the thermal printer mechanism.
SUMMARY OF INVENTION
The object of the present invention is to provide a tar bar that features paper tearing effect while, at the same, facilitates mounting of a thermal printer mechanism into a housing of a device without any additional screws or any other fasteners.
It is a further object of this invention to provide a quick, compact and inexpensive assembly of the thermal printer mechanism into the housing of the device.
To achieve the above objects, disclosed is a tear bar for a thermal printer mechanism, the thermal printer mechanism including at least a thermal head, that is housed in a device housing defining an interior space with a base and surrounding walls and being formed with a window next to one of the surrounding walls, the tear bar comprising: a body portion; a tear portion extending from the body portion; a support portion extending from the body portion in a direction substantially opposing the tear portion; and a retaining device formed at the support portion.
Further objects and advantages of the present invention will become more fully understood from the detailed description of the preferred embodiments given below in conjunction with the accompanying drawings, wherein:


REFERENCES:
patent: 4619538 (1986-10-01), Patterson
patent: 5758559 (1998-06-01), Capitao, Jr. et al.
patent: 5772094 (1998-06-01), Kaiser et al.
patent: 5806993 (1998-09-01), Petterutti et al.
patent: 5984158 (1999-11-01), Frank

Affiliated with

Also associated with

Rating

Tear bar for a thermal printer mechanism does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Tear bar for a thermal printer mechanism, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Tear bar for a thermal printer mechanism will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-2573839