Knife and associated sheath

Abstract

A bracelet or flexible band comprised of a flexible member that on one end is interconnected to a knife and on another end, is connected to a sheath that selectively receives the knife in the locking fashion. When needed, the knife is rotated within the sheath to facilitate release thereof from a lock that is integral with the sheath. Once removed from the sheath, the knife can be used for self-defense, cutting rope or cord in an emergency situation, or for general utility cutting tasks.

Claims

1. In combination a knife and sheath, comprising: a sheath having a first end and a second end with an opening, the sheath also having a selectively deflectable arm extending away from the sheath, the arm having a proximal end interconnected to the sheath between the first end and the second end and a distal end that comprises a detent, the deflectable arm being of such length wherein the detent is located adjacent the second end; a knife comprised of a blade extending from a blade base, the blade base having a first end interconnected to the blade and a second end, the blade base also having a protrusion extending from an outer surface of the blade base, wherein the blade is configured to be selectively inserted and removed from said sheath; wherein the detent has a first position of use where the blade is inserted within the sheath and the protrusion is positioned between the second end of the sheath and the detent, wherein a curved surface of the detent engages a portion of the protrusion, and a second position of use where the selectively deflectable arm is deflected so at least a portion of the detent is moved relative to the protrusion; wherein the opening of the sheath is associated with a cavity configured to selectively receive the blade, the cavity having a ceiling and a floor, wherein a tip of the blade is spaced from the floor when the blade is inserted in the sheath; wherein movement of the detent from the first position of use to the second position of use may be achieved by rotating the blade base relative to the sheath to move the tip towards the floor; and wherein the sheath employs at least one of a flint and a whistle.

2. The combination of claim 1, wherein at least one of the blade and blade base includes a gripping surface on a top surface thereof.

3. The combination of claim 1, wherein the concaved surface of the detent is configured to selectively receive a corresponding portion of the protrusion when the detent is in the first position of use.

4. The combination of claim 1, wherein the second end of the sheath and the first end of the blade base are comprised of complementary curved surfaces.

5. The combination of claim 1, wherein the sheath includes a compass.

6. The combination of claim 1, wherein the blade comprises a pivot point that selectively engages the ceiling of the sheath when the blade base is rotated relative to the sheath.

7. The combination of claim 1, further comprising a flexible band having a first end operatively interconnected to the first end of the sheath, and a second end operatively interconnected to the second end of the blade base.

8. The combination of claim 7, wherein the flexible band is comprised of at least one of paracord, leather, metal, cloth, rubber, or a similar flexible material.

9. In combination a knife and sheath, comprising: a sheath having a first end and a second end with an opening, the sheath also having a selectively deflectable arm extending away from the sheath, the selectively deflectable arm having a proximal end interconnected to said sheath between the first end and the second end and a distal end that ends in a detent, wherein the deflectable end is of such length wherein the detent is located adjacent the second end; a knife comprised of a blade extending from a blade base, the blade base having a first end interconnected to the blade and a second end, the blade base also having a protrusion extending therefrom, wherein the blade is configured to be selectively inserted and removed from said sheath; wherein the second end of the sheath and the first end of the blade base are comprised of complementary curved surfaces; wherein the detent has a first position of use where the blade is inserted within the sheath and the protrusion is positioned between the second end of the sheath and the detent and a second position of use where the selectively deflectable arm is deflected so at least a portion of the detent is moved relative to the protrusion; wherein the detent includes a recessed portion configured to selectively engage and partially surround a corresponding portion of the protrusion when the detent is in the first position of use; wherein the opening of the sheath is associated with a cavity configured to selectively receive the blade, the cavity having a ceiling and a floor, wherein a tip of the blade is spaced from the floor when the blade is fully inserted in the sheath; and wherein movement of the detent from the first position of use to the second position of use is achieved by rotating the blade base relative to the sheath to move the tip toward the floor.

10. The combination of claim 9, further comprising a compass, a flint, and a whistle.

11. The combination of claim 9, further comprising a flint and a whistle.

12. The combination of claim 9, further comprising a flexible band having a first end operatively interconnected to the first end of the sheath, and a second end operatively interconnected to the second end of the blade base.

13. The combination of claim 12, wherein the flexible band is made of at least one of paracord, leather, metal, cloth, rubber, or a similar flexible material.

14. The combination of claim 9, wherein the blade comprises a pivot point that selectively engages the ceiling of the sheath when the blade base is rotated relative to the sheath.

15. A selectively connectable assembly, comprising: a sheath having a first end and a second open end, the sheath including a selectively deflectable arm terminating at a retaining member having a curved surface located adjacent the second open end of the sheath, the selectively deflectable arm extending away from the sheath with a proximal end interconnected to the sheath between the first end and the second open end and a distal end that comprises the retaining member spaced from the second open end of the sheath; a knife comprised of a blade configured to selectively fit within the sheath and an end with a protrusion extending therefrom, the blade further including a tip; wherein the retaining member has a first position of use where the protrusion is positioned between the second open end of the sheath and the retaining member, wherein the curved surface engages a portion of the protrusion, and a second position of use where the retaining member is deflected such that the knife is able to move away from of the sheath; wherein the second open end of the sheath is associated with a cavity configured to selectively receive the blade, the cavity having a ceiling and a floor, wherein the tip of the blade is spaced from the floor when the blade is inserted in the sheath; and wherein the retaining member will move from the first position of use to the second position of use when the second end of the device is moved to urge the tip towards the floor.

16. The combination of claim 15, further comprising a compass, a flint, and a whistle.

17. The combination of claim 15, further comprising a flint and a whistle.

18. The assembly of claim 15, wherein the second open end of the sheath is arcuate.

19. The assembly of claim 15, further comprising a flexible band having a first end operatively interconnected to the first end of the sheath, and a second end operatively interconnected to the end of the knife.

20. The assembly of claim 19, wherein the flexible band is made of at least one of paracord, leather, metal, cloth, rubber, or similar flexible material.

Description

BRIEF DESCRIPTION OF THE DRAWINGS

(1) The accompanying drawings, which are incorporated in and constitute a part of the specification, illustrate embodiments of the invention and together with the general description of the invention given above and the detailed description of the drawings given below, serve to explain the principles of these inventions.

(2) FIG. 1 is a perspective view of a bracelet of one embodiment of the present invention;

(3) FIG. 2 is a bottom plan view of the bracelet;

(4) FIG. 3 is a front elevation view of the bracelet;

(5) FIG. 3A is front elevation view showing a knife removed from a sheath;

(6) FIG. 4 is a perspective view of the bracelet in a second, open position of use wherein a blade has been removed from the sheath;

(7) FIG. 5 is a partial cross-sectional front elevation view showing the knife removed from the sheath;

(8) FIG. 6 is a partial cross-sectional front elevation view showing the interaction between the knife and sheath as the knife is initially positioned within the sheath with the handle guard clear of a locking detent;

(9) FIG. 7 is a detailed view showing the interaction between the handle guard and the positive locking detent;

(10) FIG. 8 is a front elevation view showing the blade positioned within the sheath and in the locked position;

(11) FIG. 9 is a detailed view of FIG. 8;

(12) FIG. 10 is a perspective view illustrating how knife release is initiated;

(13) FIG. 11 is a front elevation view showing the knife seated in the sheath and positively locked, a portion of the sheath is shown transparent;

(14) FIG. 12 is a front elevation view showing the knife at an initial phase of removal from the sheath, wherein an arm is fully deflected, a portion of the sheath is shown transparent;

(15) FIG. 13 is a front elevation view showing the knife at an intermediate phase of removal from the sheath, wherein the arm is deflected and the bulge on the handle guard has cleared the nose on the detent, a portion of the sheath is shown transparent;

(16) FIG. 14 is front elevation view showing the knife at a final stage of removal from the sheath, wherein the arm is in a relaxed, un-deflected position, a portion of the sheath is shown transparent;

(17) FIG. 15 is a perspective view of a bracelet of another embodiment of the present invention that incorporates a watch;

(18) FIG. 16 is a top perspective view of the combination watch and bracelet shown in FIG. 15;

(19) FIG. 17 is a rear perspective view of a knife and associated sheath of another embodiment of the present invention that employs a flint and a whistle;

(20) FIG. 18 is a front perspective of the embodiment shown in FIG. 17;

(21) FIG. 19 shows the knife of separated from the sheath; and

(22) FIG. 20 is a perspective view of the knife and associated sheath interconnected to a bracelet, wherein a portion of the knife is located within the sheath.

(23) To assist in the understanding of one embodiment of the present invention the following list of components and associated numbering found in the drawings is provided herein:

(24) TABLE-US-00001 No. Component. 2 Bracelet 6 Flexible band 10 Flexible band first end 14 Flexible band second end 18 Sheath 22 Knife 26 Blade base 28 Handle 30 Handle guard 34 Detent 36 Socket 38 Outer surface 42 Sheath first end 46 Hook 50 Sheath second, open end 54 Blade 58 Upper edge 62 Ceiling 66 Floor 70 Tip 74 Arm 82 Apex 86 Loop 90 Handle guard end 94 Bulge 98 Nose 102 Upper surface 106 Lower surface 110 Watch 114 Flint 118 Whistle

(25) The drawings are not necessarily to scale. In certain instances, details that are not necessary for an understanding of the invention or that render other details difficult to perceive may have been omitted. It should be understood, of course, that the invention is not necessarily limited to the particular embodiments illustrated herein.

DETAILED DESCRIPTION

(26) FIGS. 1-7 show a bracelet 2 of one embodiment of the present invention. The bracelet 2 comprises a flexible band 6 having a first end 10 and a second end 14. The first end 10 of the flexible band 6 is interconnected to a sheath 18 and the second end 14 is interconnected to a knife 22. The flexible band 6 of one embodiment of the present invention is formed of braided paracord. However, those of ordinary skill in the art will appreciate that other flexible bands, straps, bow strap, or harness may be employed without departing from the scope of the invention.

(27) The knife 22 when positioned within the sheath as shown in FIGS. 1-3, forms an article adapted to fit around a user's wrist, ankle, or waist; or be incorporated into any strap, such as a bow strap. A bracelet 2 is provided in the figures provided herein. The clasp of the bracelet comprises the sheath 18 that selectively receives the knife 22. The knife 22 can cut items for everyday utility, in an emergency, or be used for self-defense.

(28) As shown in FIGS. 1-4, the knife 22 includes a blade 54 interconnected to a blade base 26. The blade base 26 and a portion of the flexible band 6 define a handle 28 interconnected to the blade. The blade base 26 includes a handle guard 30 selectively locked by a movable detent 34 associated with the sheath. A socket 36 of the detent 34 and an outer surface 38 of the sheath trap the handle guard to lock the blade within the sheath. The sheath 18 has a first end 42 which may have a hook 46, or another device, for selective receipt of the first end of the flexible band 6. A second end 14 of the flexible band is tied or otherwise interconnected to the blade base 26. The sheath 18 may have a curved inner surface, i.e., the surface configured to contact the user's body, and the blade base 26 may have a complementary arcuate surface (see also, FIG. 3A). The curved surface or surfaces enhance user comfort and ergonomics. Further, these surfaces may incorporate a cushion to increase comfort.

(29) FIGS. 4 and 5 show the bracelet 2 in an open configuration. Here, the knife 22, which comprises a blade 54 and the blade base 26, has been removed from the sheath 18, thereby allowing the flexible band to elongate. The handle guard 30 protects the user's fingers from sliding past the blade base and unintended contact with the blade 54 and cutting edge. The blade base 26 and the blade 54 may also include a knurled upper edge 58 that enhances gripping and serves as a surface for user's thumb or forefinger to press downward on the blade 54 to prevents upward rotation of the blade that may result from band flex.

(30) FIGS. 6-9 illustrate how the knife is locked within the sheath. The sheath 18 includes a ceiling 62 and a floor 66, wherein a blade tip 70 is spaced from the floor 66 when the knife is fully inserted within the sheath 18. As the blade 54 is initially inserted within the sheath, as shown in FIG. 6, the handle guard 30 is spaced from the detent 34. Further insertion of the blade 54 into the sheath 18 will cause the end 90 of the handle guard to come into close proximity or engage the detent as shown in FIG. 7. Still further blade insertion will engage a bulge 94 of the handle guard 30 onto a nose of the detent 98, thereby flexing the arm 74 and moving the detent 34. The final locking step is performed by rotating the knife base 26 downwardly along the second, open end of the sheath 50, which positions the handle guard 30 between the second end of the sheath 50 and the detent 34, wherein the bulge 94 is firmly seated in a socket 36 provided by the detent. FIGS. 8 and 9 show the final locking configuration, wherein arm 74 has relaxed and the detent 34 is positioned such that the bulge 94 is firmly seated in the socket 36.

(31) FIGS. 10-14 show how the blade 54 is released from the sheath 18. More specifically, to remove the knife 22 from the sheath 18, the user presses on the upper surface 102 of the sheath and provides an opposing force to a lower surface 106 of the blade base 26 and an adjacent portion of the flexible band 6. These opposing forces (see opposing arrows on FIG. 12) cause the blade 54 to rotate within the sheath 18 and moves the tip 70 closer to the floor 66 of the sheath 18. This rotation also moves the handle guard 30 along the second, open end of the sheath 50 and, thus, moves the handle guard 30 out of the socket 36 provided by the detent 34. During this phase, the bulge 94 will engage the nose 98 which flexes the arm 74 and allows further movement of the handle guard 30 and blade base 26 from the sheath 18. That is, movement of the blade base 26 relative to the sheath 18 as shown will eventually allow the handle guard 30 to escape the detent 34, wherein the handle guard 30 is spaced from the detent 34 as shown in FIG. 14. The blade 54 may be hawk-bill, drop point, or other shape to provide an apex 82 at the upper edge thereof that selectively engages a point on the ceiling 62 to facilitate rotation of the knife within the sheath. In one embodiment, this blade release sequence generates an audible noise, such as a pop.

(32) FIGS. 15 and 16 show another embodiment of the present invention, wherein a watch 110 incorporated in the flexible band 6. Here the clasp is the knife/sheath combination.

(33) FIGS. 17-20 show another embodiment of the present invention that includes a flint 114 and a whistle 118.

(34) In the examples shown, a paracord flexible band is provided. The paracord terminates in a loop 86 selectively interconnected to the hook 46 on the sheath. The other end of the flexible band is tied or otherwise interconnected to the blade base 26.

(35) While various embodiments of the present invention have been described in detail, it is apparent that modifications and alterations of those embodiments will occur to those skilled in the art. It is to be expressly understood that such modifications and alterations are within the scope and spirit of the present invention, as set forth in the following claims. Further, it is to be understood that the invention(s) described herein is not limited in its application to the details of construction and the arrangement of components set forth in the preceding description or illustrated in the drawings. The invention is capable of other embodiments and of being practiced or of being carried out in various ways. Also, it is to be understood that the phraseology and terminology used herein is for the purpose of description and should not be regarded as limiting. The use of including, comprising, or having and variations thereof herein is meant to encompass the items listed thereafter and equivalents thereof as well as additional items.