Skinning knife with removable blade

Patent metadata

Field	Value
Publication number	US-10349664-B2
Application number	US-201715451153-A
Country	US
Kind code	B2
Filing date	Mar 6, 2017
Priority date	Jun 13, 2013
Publication date	Jul 16, 2019
Grant date	Jul 16, 2019

Abstract

A skinning knife includes a handle and a blade carrier coupled to the handle, the blade carrier including a mount having a mounting surface, a boss extending outward from the mounting surface, and a spring including a front portion, a middle portion, and a rear portion. The skinning knife also includes a blade including a sharpened edge, a body, and a slot formed through the body, where the slot extends in a longitudinal direction from a front end to a rear end and includes a narrow portion of a first width and a wide portion of a second width greater than the first width. The blade is releaseably secured to the blade carrier by interaction between the boss and the spring of the blade carrier and the slot of the blade.

First claim

What is claimed is:

1. A skinning knife, comprising:
a handle;
a blade carrier coupled to the handle, the blade carrier including a mount having a mounting surface, a boss extending outward from the mounting surface, and a spring including a front portion, a middle portion, and a rear portion, the front portion secured to the mount proximate a front end of the spring, the middle portion bent outward from the front portion and the rear portion, and the rear portion including a free end of the spring movable relative to the mount; and
a blade including a sharpened edge, a body, and a slot formed through the body, the slot extends in a longitudinal direction from a front end to a rear end and includes a narrow portion of a first width and a wide portion of a second width greater than the first width, the narrow portion includes the front end of the slot and the wide portion includes the rear end of the slot;
wherein the blade is released and secured to the blade carrier by interaction between the boss and the spring of the blade carrier and the slot of the blade;
wherein in a first mode of operation, the boss and spring of the blade carrier contact the front end and rear end of the slot to secure the blade to the blade carrier; and
wherein in a second mode of operation, the boss and the spring of the blade carrier are moved out of contact with the front end and rear end of the slot to remove the blade from the blade carrier.

2. The skinning knife of claim 1 , further comprising:
a button coupled to the rear portion of the spring and configured for actuation by a user to release the blade from the blade carrier.

3. The skinning knife of claim 2 , wherein the middle portion of the spring includes a first leg and a second leg, with the first leg bent at a first angle relative to the front portion of the spring and the second leg bent at a second angle relative to the rear portion of the spring.

4. The skinning knife of claim 3 , wherein the boss includes a narrow portion of a third width and a wide portion of a fourth width greater than the first width and the third width, the narrow portion positioned between the mounting surface and the wide portion; and
wherein the narrow portion of the boss is positioned in the narrow portion of the slot so that the wide portion of the boss overlaps a portion of the body of the blade adjacent the narrow portion of the slot.

5. The skinning knife of claim 4 , wherein the blade includes a top edge and a bottom portion of the sharpened edge, the top edge is spaced apart from a top of the slot by a first distance and the bottom portion of the sharpened edge is spaced apart from a bottom of the slot by a second distance greater than the first distance;
wherein the button includes a bottom edge spaced apart from a top edge of the spring by a third distance less than the second distance so that the blade can only be secured to the mount with the top edge of the blade adjacent the bottom edge of the button.

6. The skinning knife of claim 2 , further comprising an arm coupling the button to the rear portion of the spring, wherein the arm spaces the button away from the rear portion of the spring such that the button does not contact a rear portion of the blade.

7. The skinning knife of claim 1 , further comprising a button coupled to the rear portion of the spring and configured for actuation by a user to release the blade from the blade carrier,
wherein the blade includes a top edge and a bottom portion of the sharpened edge, the top edge is spaced apart from a top of the slot by a first distance and the bottom, portion of the sharpened edge is spaced apart from a bottom of the slot by a second distance greater than the first distance;
wherein the button includes a bottom edge spaced apart from a top edge of the spring by a third distance less than the second distance so that the blade can only be secured to the mount with the top edge of the blade adjacent the bottom edge of the button.

8. The skinning knife of claim 7 , wherein the mount includes an aperture, and wherein the middle portion of the spring is positioned within the aperture.

9. The skinning knife of claim 8 , wherein the mount includes a stop extending across the aperture, and wherein the stop is configured to limit travel of the spring.

10. The skinning knife of claim 7 , further comprising an arm coupling the button to the rear portion of the spring, wherein the arm spaces the button away from the rear portion of the spring such that the button does not contact a rear portion of the blade.

11. The skinning knife of claim 1 , wherein the middle portion of the spring includes a first leg and a second leg, with the first leg bent at a first angle relative to the front portion of the spring and the second leg bent at a second angle relative to the rear portion of the spring.

12. The skinning knife of claim 11 , wherein the first angle is less than the second angle.

13. The skinning knife of claim 12 , wherein the mount includes an aperture, and wherein the middle portion of the spring is positioned within the aperture.

14. The skinning knife of claim 13 , wherein the mount includes a stop extending across the aperture, and wherein the stop is configured to limit travel of the spring.

15. The skinning knife of claim 14 , further comprising a button coupled to the rear portion of the spring and configured for actuation by a user to release the blade from the blade carrier,
wherein the blade includes a top edge and a bottom portion of the sharpened edge, the top edge is spaced apart from a top of the slot by a first distance and the bottom portion of the sharpened edge is spaced apart from a bottom of the slot by a second distance greater than the first distance;
wherein the button includes a bottom edge spaced apart from a top edge of the spring by a third distance less than the second distance so that the blade can only be secured to the mount with the top edge of the blade adjacent the bottom edge of the button.

16. The skinning knife of claim 1 , wherein the mount includes an aperture, and wherein the middle portion of the spring is positioned within the aperture.

17. The skinning knife of claim 16 , wherein the mount includes a stop extending across the aperture, and wherein the stop is configured to limit travel of the spring.

18. The skinning knife of claim 1 , wherein the blade carrier is pivotally coupled to the handle.

19. The skinning knife of claim 1 , wherein the blade carrier is rigidly coupled to the handle.

20. The skinning knife of claim 1 , wherein the boss includes a narrow portion of a third width and a wide portion of a fourth width greater than the first width and the third width, the narrow portion positioned between the mounting surface and the wide portion; and
wherein the narrow portion of the boss is positioned in the narrow portion of the slot so that the wide portion of the boss overlaps a portion of the body of the blade adjacent the narrow portion of the slot.

Assignees

• Fiskars Brands Inc

Inventors

• Schuft Peter

Classifications

• B26B5/001

  with blades being slid out of handle immediately prior to use · CPC title

• A22B5/168 Primary

  Hand tools specially adapted for skinning carcasses · CPC title

• B26B29/04

  Guards or sheaths for scissors, e.g. combined with manicuring appliances (manicuring implements per se A45D29/00) · CPC title

• B26B5/003

  comprising retraction means for the blade or the blade holder · CPC title

• B26B5/00

  Hand knives with one or more detachable blades · CPC title