Food product slicer with timed sharpening operation

• US 8,220,383 B2
• Filed: 04/13/2009
• Issued: 07/17/2012
• Est. Priority Date: 04/15/2008
• Status: Active Grant

• Current Assignee: Premark FEG LLC (Illinois Tool Works Inc.)
• Original Assignee: Premark FEG LLC (Illinois Tool Works Inc.)
• Inventors: Rummel, Samuel A., Shariff, Shahram
• Primary Examiner(s): Wong, Steven
• Application Number:
  US12/422,498
• Publication Number:
  US 20090255418A1
• Time in Patent Office: 1,191 Days
• Field of Search: 995/37, 834/74, 835/20, 83/761, 831/74, 451/48, 451/11, 451/45, 451/420, 76/85, 76/87, 76/89, 700/160, 700/174, 700/175
• US Class Current: 99/537
• CPC Class Codes: B26D 1/143 rotating about a stationary axis B26D1/20 - B26D1/24 take precedence
• CPC Class Codes: B26D 2210/02 for cutting food products, e.g. food slicers
• CPC Class Codes: B26D 5/00 Arrangements for operating and controlling machines or devices for cutting, cutting-out, stamping-out, punching, perforating, or severing by means other than cutting
• CPC Class Codes: B26D 5/32 with the record carrier formed by the work itself
• CPC Class Codes: B26D 7/12 by sharpening the cutting member
• CPC Class Codes: Y10T 83/162 With control means responsive to replaceable or selectable information program
• CPC Class Codes: Y10T 83/303 With tool sharpener or smoother
• CPC Class Codes: Y10T 83/7709 Unidirectionally movable work support
• CPC Class Codes: Y10T 83/828 With illuminating or viewing means for work

Abstract

A food product slicer with a rotatable slicer knife includes a knife sharpener and a control for providing a timed sharpening operation. The control effects rotation of the slicer knife for a set knife sharpen time period when a knife sharpen input of the slicer is triggered.

Claims

1. A slicer for use in slicing a food product, the slicer comprising:

a slicer body;

a slicer knife mounted for rotation relative to the slicer body, the slicer knife having a peripheral cutting edge, and an associated knife drive motor;

a food product carriage mounted to the slicer body for reciprocating movement back and forth past a cutting zone of the slicer knife;

a controller operable to activate a sharpen knife annunciator based upon at least one operating parameter of the slicer in order to alert an operator of need to sharpen the slicer knife, the controller associated with the knife drive motor to effect operation thereof;

an operator actuatable knife sharpen input device associated with the controller, upon operator actuation of the knife sharpen input device the controller causes the knife drive motor to be energized for a set knife sharpening time period.

2. The slicer of claim 1 wherein the knife drive motor is energized immediately in response to actuation of the knife sharpen input device.

3. The slicer of claim 1 wherein the knife drive motor is energized only after lapse of a certain time period following actuation of the knife sharpen input device.

4. The slicer of claim 1 wherein the knife sharpen input device must be maintained in an actuated condition for the knife motor to remain energized for the set knife sharpening time period.

5. The slicer of claim 4 wherein the sharpen knife annunciator is de-energized after the set time period, provided that the knife sharpen input device was maintained in the actuated condition for the entirety of the set knife sharpening time period.

15. The slicer of claim 1, further comprising a manually actuated knife sharpener mounted on the slicer body.

16. The slicer of claim 1, further comprising a powered knife sharpener mounted on the slicer body.

6. A slicer for use in slicing a food product, the slicer comprising:

a slicer body;

a slicer knife mounted for rotation relative to the slicer body, the slicer knife having a peripheral cutting edge, and an associated knife drive motor;

a food product carriage mounted to the slicer body for reciprocating movement back and forth past a cutting zone of the slicer knife;

an operator actuatable knife sharpen input device;

a knife sharpen light element;

a sensor for detecting movement of the food product carriage;

a controller associated with the knife drive motor, the operator actuatable knife sharpen input device, the knife sharpen light element and the sensor, the controller programmed to (i) monitor the sensor to maintain a count of food product carriage slicing strokes, (ii) effect illumination of the knife sharpen light element when the count reaches a set threshold, (iii) upon operator actuation of the knife sharpen input device, effect operation of the knife drive motor for a set time period, after which operation of the knife drive motor is automatically stopped.

7. The slicer of claim 6 wherein the controller is programmed to reset the count upon completion of the set time period and cease illumination of the knife sharpen light element.

11. The slicer of claim 7 wherein the controller is programmed to flash the knife sharpen element at least once before ceasing illumination of the knife sharpen light element, so as to provide a visual indication that the sharpen operation is complete and the count has been reset.

17. The slicer of claim 6, further comprising a manually actuated knife sharpener mounted on the slicer body.

18. The slicer of claim 6, further comprising a powered knife sharpener mounted on the slicer body.

8. A slicer for use in slicing a food product, the slicer comprising:

a slicer body;

a slicer knife mounted for rotation relative to the slicer body, the slicer knife having a peripheral cutting edge, and an associated knife drive motor;

a food product carriage mounted to the slicer body for reciprocating movement back and forth past a cutting zone of the slicer knife;

a knife sharpen input device;

a knife sharpen light element;

a sensor for detecting movement of the food product carriage;

a controller associated with the knife drive motor, the knife sharpen input device, the knife sharpen light element and the sensor, the controller programmed to (i) monitor the sensor to maintain a count of food product carriage slicing strokes, (ii) effect illumination of the knife sharpen light element when the count reaches a set threshold, (iii) upon actuation of the knife sharpen input device, effect operation of the knife drive motor for a set time period, after which operation of the knife drive motor is automatically stopped;

wherein the controller is programmed to reset the count upon completion of the set time period and cease illumination of the knife sharpen light element;

wherein the controller is programmed such that, if actuation of the knife sharpen input device is stopped prior to completion of the set time period, operation of the knife drive motor is automatically stopped prior to completion of the set time period, illumination of the knife sharpen element is continued and the count is not reset.

9. The slicer of claim 8 wherein the controller is programmed such that, upon actuation of the knife sharpen input device, operation of the knife drive motor for the set time period is begun only after a set delay time period.

10. The slicer of claim 9 wherein the set time period is between about 10 and 20 seconds and the set delay time period is between about 2 and 6 seconds.

12. A slicer for use in slicing a food product, the slicer comprising:

a slicer body;

a slicer knife mounted for rotation relative to the slicer body, the slicer knife having a peripheral cutting edge, and an associated knife drive motor;

a sharpener movable for engaging the slicer knife for sharpening;

a food product carriage mounted to the slicer body for reciprocating movement back and forth past a cutting zone of the slicer knife;

a controller associated with the knife drive motor to effect operation thereof;

an operator actuatable knife sharpen input device associated with the controller for initiating a sharpening operation;

wherein the controller is configured such that upon operator actuation of the knife sharpen input device the controller causes the knife drive motor to be energized for a set knife sharpening time period.

13. The slicer of claim 12 wherein the controller is configured such that the knife drive motor is energized immediately in response to actuation of the knife sharpen input device.

14. The slicer of claim 12 wherein the controller is configured such that the knife drive motor is energized only after lapse of a certain time period following actuation of the knife sharpen input device.