Blade removal device for a slicer having a holding aid

Patent metadata

Field	Value
Publication number	US-11890771-B2
Application number	US-202217854000-A
Country	US
Kind code	B2
Filing date	Jun 30, 2022
Priority date	Jul 8, 2021
Publication date	Feb 6, 2024
Grant date	Feb 6, 2024

Abstract

A blade removal device removes a blade of a slicer. The removal device has: a base positioned with a contact side on one side of the blade; fasteners supported in the base, rotatable from an attachment position for attaching the blade removal device to the blade into a holding position for holding the blade; and a rotary handle supported on the base and rotatable relative to the base from a closed position into an open position to release an interlock between the blade and the drive. The interlock opens when the rotary handle is in the open position and is closed when the rotary handle is in the closed position. The fasteners in the attachment position engage in cutouts of the rotary handle in the closed position. The cutouts and the fasteners are out of engagement when the rotary handle is in the open position.

First claim

The invention claimed is:

1. A blade removal device for removing a circular blade of a slicer for slicing off slices from a length of material to be sliced, the blade removal device comprising:
a base, which is configured to be positioned with a contact side on one side of the circular blade;
fasteners rotatably supported in the base, each being configured to be rotated about an axis of rotation of the respective one of the fasteners relative to the base from an attachment position for attaching the blade removal device to the circular blade into a holding position for holding the circular blade to the blade removal device; and
a rotary handle rotatably supported on the base and configured to be rotated relative to the base from a closed position into an open position to release an interlock between the circular blade and the drive of the circular blade, the interlock being configured to be open when the rotary handle is in the open position and closed when the rotary handle is in the closed position, the fasteners in the attachment position being adapted to engage in cutouts of the rotary handle in the closed position, and the cutouts and the fasteners being out of engagement when the rotary handle is in the open position.

2. The blade removal device as recited in claim 1 ,
wherein the fasteners each comprise:
a blade holder that is configured to be passed through associated through-holes of the circular blade in the attachment position and to hold the circular blade in the holding position, and
a blade holder lever configured to rotate the blade holder,

wherein the blade holder has a retaining pin oriented parallel to the base,
wherein the blade holder lever is adapted to engage in one of the cutouts of the rotary handle in the closed position when the respective fastening element is in the attachment position, and
wherein the blade holder lever is oriented perpendicular to the retaining pin and parallel to the base.

3. The blade removal device as recited in claim 2 ,
wherein the base is configured with stops for the blade holder levers.

4. The blade removal device as recited in claim 1
wherein the fasteners comprise springs configured to press the circular blade against the base, the springs being disposed on the side of the base opposite the contact side.

5. The blade removal device as recited in claim 1 ,
wherein the rotary handle is configured for rotating a hexagon, the hexagon being formed on a nut that is part of the interlock.

6. The blade removal device as recited in claim 1 ,
wherein the rotary handle is configured to be transferred from the closed position into the open position by rotation through about 60°, the rotary handle being configured to extend through a central opening of the base.

7. The blade removal device as recited in claim 1 , comprising:
a retaining plate having lugs disposed in the rotary handle,
wherein the base has lug receptacles for receiving the lugs in the open position and/or the closed position of the rotary handle,
wherein the rotary handle has at least one spring element configured to exert a spring force on the retaining plate in a direction of the base, the spring force being configured to push the lugs into the lug receptacles, and
wherein the base has guide grooves for connecting the lug receptacles in pairs.

8. The blade removal device as recited in claim 7 ,
wherein the retaining plate has a retaining pin for moving the retaining plate away from the base against the spring force of the at least one spring element, the retaining pin being centrally disposed in the rotary handle in a guide tube.

9. The blade removal device as recited in claim 1
wherein the blade removal device is configured with a latch for fixation to the blade guard ring and/or with receptacles for receiving pins of the blade guard ring.

10. A slicing system, the slicing system comprising:
a slicer configured to slice off slices from a length of material to be sliced, the slicer comprising a drive configured to hold and drive a circular blade, the drive and the circular blade being connected together by an interlock;
a blade removal device for removing the circular blade, the blade removal device comprising:
a base which is configured to be positioned with a contact side on one side of the circular blade;
fasteners rotatably supported in the base, each being configured to be rotated about an axis of rotation of the respective one of the fasteners relative to the base from an attachment position for attaching the blade removal device to the circular blade into a holding position for holding the blade removal device to the circular blade; and
a rotary handle rotatably supported on the base and configured to be rotated relative to the base from a closed position into an open position to release the interlock between the circular blade and the drive of the circular blade, the interlock being configured to be open when the rotary handle is in the open position and closed when the rotary handle is in the closed position,

wherein the fasteners in the attachment position are adapted to engage in cutouts of the rotary handle in the closed position, and
wherein the cutouts of the rotary handle and fasteners are out of the engagement when the rotary handle is in the open position.

11. The slicing system as recited in claim 10 ,
wherein the circular blade has through-holes configured for passage therethrough of associated blade holders of the fasteners in the attachment position of the fasteners and for locking the blade holders in the holding position of the fasteners.

12. The slicing system as recited in claim 10 ,
wherein a nut is releasably attached to the circular blade about the axis of rotation thereof, the nut being part of the interlock and being configured with recesses to form the interlock with associated bulges of the drive of the circular blade, the nut having a hexagon formed thereon for rotating the nut, and the rotary handle in being configured for rotating the hexagon.

13. The slicing system as recited in claim 10 ,
wherein the circular blade has an arrow that points to a pin on the blade guard ring when the circular blade is in an angular position where the through-holes are located at the top and bottom.

14. The slicing system as recited in claim 10 , comprising
wherein a retaining plate having lugs is disposed in the rotary handle,
wherein the base has lug receptacles for receiving the lugs in the open position and/or the closed position of the rotary handle,
wherein the rotary handle has at least one spring element configured to exert a spring force on the retaining plate in a direction of the base, the spring force being configured to push the lugs into the lug receptacles,
wherein the base has guide grooves for connecting the lug receptacles in pairs,
wherein the retaining plate has a retaining pin for moving the retaining plate away from the base against the spring force of the at least one spring element, the retaining pin being centrally disposed in the rotary handle in a guide tube, and
wherein the drive of the circular blade has a release pin for releasing the retaining pin, the release pin resting against the retaining pin of the retaining plate and being disposed on the axis of rotation of the circular blade.

15. The slicing system as recited in claim 10 ,
wherein the slicer is configured as a gravity feed slicer or as a vertical slicer.

16. The blade removal device as recited in claim 2 , wherein the blade holder lever is disposed on the side of the base opposite the blade holder.

Assignees

• Bizerba Se & Co Kg

Inventors

• Schalow Steffen
• Kroener Matthias
• Wersching Claudius

Classifications

• B26D7/2621 Primary

  for circular cutters · CPC title

• B26D1/143

  rotating about a stationary axis (B26D1/20 - B26D1/24 take precedence) · CPC title

• B26D2210/02

  for cutting food products, e.g. food slicers · CPC title