This invention relates generally to cutlery, and more particularly to an interchangeable cutlery system with a quick-change blade mechanism.
Interchangeable cutlery systems wherein multiple blades may be removable attached in seriatim to a single handle are known. Such systems allow different blade types to be employed with a single handle, as well as allow replacing a dull blade with a fresh sharp blade.
Various mechanisms have heretofore been proposed for removably attaching a knife blade to a knife handle. Nevertheless, further improvement is desired.
In one aspect, an interchangeable cutlery system comprises a blade handle incorporating a quick-change blade mechanism, and a plurality of blades removably attachable to the handle via the mechanism, wherein the plurality of blades are selected from a group consisting of a filet knife blade, a back-serrated fillet knife blade, a clip point knife blade, a gut hook knife blade, a saw blade, a fish scaler, a large bush craft blade, and multiple lengths thereof.
The mechanism of the system can comprise a spring mounted in the handle and deflectable generally perpendicular to a plane of the handle, a spring stud mounted on the spring, a release button mounted on the spring, and an aperture in a proximal end of the blade. Sliding the proximal end of the blade into the handle while pressing the release button to deflect the spring permits the blade to be inserted into the handle. Releasing the release button once the aperture is aligned with the spring stud allows the spring to bias the spring stud into the aperture to attach the blade to the handle. Pressing the release button deflects the spring thereby moving the spring stud out of the aperture at which time the proximal end of the blade can be slid out of the handle to thereby detach the blade from the handle.
The system can further include a blade fitment plate, a first portion of the plate mounted in the handle and a second portion of the plate extending out of a distal end of the handle. The spring can be mounted to the first portion of the plate. The aperture can be an elongated slot and the second portion of the plate can include an elongated protuberance which is closely and slidably received in the elongated slot. The slot can include a wider proximal portion and a narrower distal portion. The protuberance can include a first portion which can pass through the wider proximal portion of the slot but which cannot pass through the narrower distal portion of the slot, and a second portion, narrower than the first portion, that connects the first portion to the plate and which is closely and slidably received in the narrower distal portion of the slot. The proximal end of the blade can further include a recess therein spaced transversely from the elongated slot within a plane of the blade and the plate can further include a fitment stud which is received in the recess when the blade is attached to the handle. The spring can be a cantilever beam secured to the plate at a proximal end of the cantilever beam, the spring stud can be mounted to the beam at a distal end of the beam, and the release button can be mounted to the beam between the proximal end of the beam and the spring stud. The handle can include a first portion and a second portion removably attached to the first portion, wherein the fitment plate is secured to the second portion, and wherein the first portion includes a lock lever for locking the second portion to the first portion.
In another aspect, a bladed implement including a quick-change blade mechanism comprises a blade handle including a spring mounted in the handle and deflectable generally perpendicular to a plane of the handle, a spring stud mounted on the spring, a release button mounted on the spring, and a blade including an aperture in a proximal end of the blade. Sliding the proximal end of the blade into the handle while pressing the release button to deflect the spring permits the blade to be inserted into the handle. Releasing the release button once the aperture is aligned with the spring stud allows the spring to bias the spring stud into the aperture to attach the blade to the handle. Pressing the release button deflects the spring thereby moving the spring stud out of the aperture at which time the proximal end of the blade can be slid out of the handle to thereby detach the blade from the handle.
In another aspect, an interchangeable cutlery system comprises a knife handle incorporating a quick-change knife blade mechanism, and a plurality of knife blades removably attachable to the handle via the mechanism, wherein the plurality of blades are selected from a group consisting of filet, clip, and gut hook blades, and multiple lengths thereof.
The mechanism of the system can comprise a spring mounted in the handle and deflectable generally perpendicular to a plane of the handle, a spring stud mounted on the spring, a release button mounted on the spring, and an aperture in a proximal end of the blade. Sliding the proximal end of the blade into the handle deflects the spring by virtue of the blade acting upon the spring stud, or alternatively or in addition thereto, pressing the release button deflects the spring, until such time as the aperture is aligned with the spring stud whereupon the spring biases the spring stud into the aperture to attach the blade to the handle. Pressing the release button deflects the spring thereby moving the spring stud out of the aperture at which time the proximal end of the blade can be slid out of the handle to thereby detach the blade from the handle.
The system can further include a blade fitment plate, a first portion of the plate mounted in the handle and a second portion of the plate extending out of a distal end of the handle. The spring can be mounted to the first portion of the plate. The aperture can be an elongated slot and the second portion of the plate can include an elongated protuberance which is closely and slidably received in the elongated slot. The distal end of the blade can further include a recess therein spaced transversely from the elongated slot within a plane of the blade and the plate can further include a fitment stud which is received in the recess when the blade is attached to the handle. The spring can be a cantilever beam secured to the plate at a proximal end of the cantilever beam, the spring stud can be mounted to the beam at a distal end of the beam, and the release button can be mounted to the beam between the proximal end of the beam and the spring stud. The handle can include a first portion and a second portion removably attached to the first portion, wherein the fitment plate is secured to the second portion, and wherein the first portion includes a lock lever for locking the second portion to the first portion.
In another aspect, a knife including a quick-change knife blade mechanism comprises a knife handle including a spring mounted in the handle and deflectable generally perpendicular to a plane of the handle, a spring stud mounted on the spring, a release button mounted on the spring, and a knife blade including an aperture in a proximal end of the blade. Sliding the proximal end of the blade into the handle deflects the spring by virtue of the blade acting upon the spring stud, or alternatively or in addition thereto, pressing the release button deflects the spring, until such time as the aperture is aligned with the spring stud whereupon the spring biases the spring stud into the aperture to attach the blade to the handle. Pressing the release button deflects the spring thereby moving the spring stud out of the aperture at which time the proximal end of the blade can be slid out of the handle to thereby detach the blade from the handle.
The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and, together with the summary of the invention given above, and the detailed description of the drawings given below, serve to explain the principles of the present invention.
6.
Referring first to
Referring to
Fitment plate 30 has a spring 32 screwed thereto and is fabricated of, for example, stainless steel, and is in the form of a cantilever beam or leaf spring. Spring 32 has a spring stud 34 that cooperates with a release button 36. Release button 36 is biased away from, i.e. out of contact with, leaf spring 32 via a compression spring 35. Knife blade 12 has an elongated slot 38 in a proximal end thereof. The slot 38 has a wider proximal portion 37 and a narrower distal portion 39. The fitment plate 30 has an extension 40 that extends or projects outwardly from a distal end of the handle 14. The extension 40 has an elongated oval protuberance, nub, or lug 42 that is closely and slidably received in the slot 38. More particularly, the protuberance 42 includes a first portion 41 which can pass through the wider proximal portion 37 of the slot 38 but which cannot pass through the narrower distal portion 39 of the slot 38, and a second portion 43, narrower than the first portion 41, that connects the first portion 41 to the plate 30 and which is closely and slidably received in the narrower distal portion 39 of the slot 38. The fitment plate 30 has a fitment stud 44 fabricated of, for example, stainless steel, that is received in a recess 46 in blade 12.
Portion 20 of first handle portion 19 of handle 14 has a liner plate 50 fabricated of, for example, stainless steel, screwed to it at a distal end thereof with screws 20a. Liner plate 50 has notches 52, 54 that receive tangs 56, 58, respectively, on fitment plate 30. The lever lock 26, notch 28, tangs 56, 58, and notches 52, 54 serve to securely removably attach second portion 22 of handle 14 to first portion 19 of handle 14.
To attach the blade 12 to the handle 14, handle portion 22 is slid into/onto handle portion 19 and locked via the locking lever 24. Next, the proximal end of the blade 12 is inserted into the distal end of the handle 14. Sliding the proximal end of the blade 12 into the handle 14 while pressing the release button 36 to deflect the spring 32 permits the blade 12 to be fully inserted into the handle 14. Once the proximal end of the elongated slot 38 clears the spring stud 34, the release button 36 can be released, whereupon the spring 32 biases the spring stud 34 into the elongated slot 38. At this time the fitment stud 44 is firmly received in the recess 46 of the blade 12, and the distal end of the lug 42 is firmly received in the distal end of the elongated slot 38, namely the distal end of portion 43 of lug 42 is firmly received in the distal end of portion 39 of slot 38.
To detach the blade 12 from the handle 14, the release button 36 is pressed which deflects the spring 32 and thereby moves the spring stud 34 out of the elongated slot 38 in the blade 12. At this time the proximal end of said blade 12 can be slid out of the handle 14 to thereby detach the blade 12 from said handle 14.
Several blades can be used to form the cutlery system of the invention. For example, the system can include blades such as filet knife blades, clip or clip point knife blades, gut hook knife blades, and saw blades, including a plurality of lengths of each.
Referring now to
Referring to
Fitment plate 130 has a spring 132 screwed thereto and is fabricated of, for example, stainless steel, and is in the form of a cantilever beam. Spring 132 has a spring stud 134 and a release button 136. Knife blade 112 has an elongated slot 138 in a proximal end thereof. The fitment plate 130 has an extension 140 that extends or projects outwardly from a distal end of the handle 114. The extension 140 has an elongated oval protuberance, nub, or lug 142 that is closely and slidably received in the slot 138. The fitment plate 130 has a fitment stud 144 fabricated of, for example, stainless steel, that is received in a recess 146 in blade 112.
First portion 120 of handle 114 has a liner plate 150 fabricated of, for example, stainless steel, screwed to it at a distal end thereof. Liner plate 150 has notches 152, 154 that receive tangs 156, 158, respectively, on fitment plate 130. The lever lock 126, notch 128, tangs 156, 158, and notches 152, 154 serve to securely removably attach second portion 122 of handle 114 to first portion 120 of handle 114.
To attach the blade 112 to the handle 114, the proximal end of the blade 112 is inserted into the distal end of the handle 114. The spring 138 is deflected by virtue of the proximal end of the blade 112 acting upon the spring stud 134, and/or by pressing the release button 136. Insertion of the blade 112 into the handle 114 continues until such time as the proximal end of the elongated slot 138 clears the spring stud 134, whereupon the spring 132 biases the spring stud 134 into the elongated slot 138. At this time the fitment stud 144 is firmly received in the recess 146 of the blade 112, and the distal end of the lug 142 is firmly received in the distal end of the elongated slot 138.
To detach the blade 112 from the handle 114, the release button 136 is pressed which deflects the spring 132 and thereby moves the spring stud 134 out of the elongated slot 138 in the blade 112. At this time the proximal end of said blade 112 can be slid out of the handle 114 to thereby detach the blade 112 from said handle 114.
The cutlery system of the present invention is a platform whereby numerous blade styles and tools can be utilized. Other implements that can be utilized with this system are fish scalers 194, back-serrated fillet blades 190, large bush craft blades 196, saws 192, etc., as shown in
The various embodiments of the invention shown and described are merely for illustrative purposes only, as the drawings and the description are not intended to restrict or limit in any way the scope of the claims. Those skilled in the art will appreciate various changes, modifications, and improvements which can be made to the invention without departing from the spirit or scope thereof. The invention in its broader aspects is therefore not limited to the specific details and representative apparatus and methods shown and described. The invention resides in each individual feature described herein, alone, and in all combinations of any and all of those features. Departures may therefore be made from such details without departing from the spirit or scope of the general inventive concept. Accordingly, the scope of the invention shall be limited only by the following claims and their equivalents.
This application is a divisional of U.S. Non-provisional application Ser. No. 16/244,266 filed Jan. 10, 2019, which application claims the priority benefit of U.S. Provisional Patent Application No. 62/615,693 filed Jan. 10, 2018 and of U.S. Provisional Patent Application No. 62/632,092 filed Feb. 19, 2018, all of which are hereby incorporated by reference herein as if fully set forth in their entirety.
Number | Date | Country | |
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62632092 | Feb 2018 | US | |
62615693 | Jan 2018 | US |
Number | Date | Country | |
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Parent | 16244266 | Jan 2019 | US |
Child | 17663615 | US |