Device for retaining doctor blades

• US 8,961,741 B2
• Filed: 08/14/2012
• Issued: 02/24/2015
• Est. Priority Date: 08/31/2011
• Status: Expired due to Fees

• Current Assignee: Joh. Clouth GmbH & Co. KG.
• Original Assignee: Joh. Clouth GmbH & Co. KG.
• Inventors: Knopp, Joachim, Borgmann, Axel
• Primary Examiner(s): Halpern, Mark
• Application Number:
  US14/240,964
• Publication Number:
  US 20140216674A1
• Time in Patent Office: 924 Days
• Field of Search: 162/280, 162/281, 162/272, 162/199, 162/263
• US Class Current: 162/280
• CPC Class Codes: D21F 7/00 Other details of machines for making continuous webs of paper
• CPC Class Codes: D21G 3/005 Doctor knifes

Abstract

A device for retaining doctor blades includes a support element and a retaining finger with a doctor blade pocket inserted between the support element and the retaining finger. The support element and the retaining finger are constructed as a single piece.

Claims

1. A device for retaining a doctor blade, the device comprising:

a support element, and

a retaining finger having a doctor blade pocket, wherein the support element and the retaining finger are formed as a single piece and the doctor blade is inserted between the support element and the retaining finger,

wherein the support element and the retaining finger are formed of a single bent sheet-metal part having a uniform sheet-metal thickness and the retaining finger comprises a first section abutting the support element and a second section constructed to lift off or move away from the support element, wherein the retaining finger is welded to the support element in a transition region disposed between the first section and the second section.

2. The device of claim 1, wherein the retaining finger is welded to the support element in the transition region by a laser weld.

3. The device of claim 1, wherein the second section of the retaining finger comprises a free end having a spacing to the support element.

4. The device of claim 3, wherein the spacing has a defined width.

5. The device of claim 4, wherein the width of the spacing is adjusted by a saw cut extending parallel to a plane of the support element.

6. The device of claim 1, wherein the support element and the retaining finger comprise apertures constructed to receive adjusting screws or fastening screws, or both.

7. The device of claim 1, wherein an end of the device distal from the doctor blade, where the support element transitions into the retaining finger, is finish-machined and burr-free.

8. The device of claim 1, wherein the support element comprises a free end having a chamfer disposed on a top side of the support element facing away from the retaining finger.

9. The device of claim 8, wherein the chamfer is produced by pressing.