CORD LOCK APPARATUS AND BELT WITH SAME
20210076782 ยท 2021-03-18
Inventors
Cpc classification
International classification
Abstract
An article of clothing in the form of a belt includes: a cord having a proximal end and a distal end; and a buckle having an eyelet and a locking feature; wherein the buckle is attached to the proximal end and the distal end of the cord is configured to pass through the buckle eyelet; and the locking feature is structured and arranged to selectively lock and unlock movement of the cord through the buckle.
Claims
1. An apparatus, comprising: at least one cord comprising a proximal end and a distal end; and at least one buckle comprising an eyelet and a locking feature, wherein the proximal end of the cord is attached to the buckle; the distal end of the cord is configured to pass through the eyelet, wherein the cord and the buckle combine to form a continuous closed loop when the distal end of the cord is passed through the eyelet; and the locking feature is structured and arranged to selectively lock and unlock movement of the cord through the eyelet.
2. The apparatus of claim 1, wherein the buckle is a unitary structure and has no moving parts and is attached to the proximal end of the cord via a hinged connection.
3. The apparatus of claim 1, wherein the cord and the buckle are structured and arranged with relative sizes such that: the cord is disengaged from the locking feature and in an unlocked position relative to the buckle when the cord is positioned within the eyelet with its long axis parallel to an axis of the eyelet; and the cord is engaged with the locking feature and in a locked position relative to the buckle when the cord is positioned within the opening with its long axis non-parallel to the axis of the eyelet.
4. The apparatus of claim 1, wherein the eyelet is circular.
5. The apparatus of claim 1, wherein the cord and the buckle are structured and arranged with relative sizes such that only a single portion of the cord fits inside the circular eyelet at one time.
6. The apparatus of claim 1, wherein an outside diameter of the cord is substantially equal to a diameter of the circular eyelet.
7. The apparatus of claim 1, wherein the locking feature comprises plural teeth around the eyelet.
8. The apparatus of claim 7, wherein the plural teeth comprise: a first set of teeth circumferentially around a first side of the eyelet; and a second set of teeth circumferentially around a second side of the eyelet.
9. The apparatus of claim 7, wherein the plural teeth protrude outward from a convex surface that defines a circular eyelet.
10. The apparatus of claim 9, wherein the plural teeth do not extend into a circular area defined by a crown of the convex surface.
11. The apparatus of claim 1, wherein: the eyelet is defined by a through-bore with a sidewall that is symmetric about a plane through the center of the buckle; and the locking feature comprises edges defined by an intersection of the sidewall and two opposed outer surfaces of the eyelet.
12. The apparatus of claim 1, wherein the apparatus comprises a belt.
13. The apparatus of claim 12, wherein the cord comprises a rope having a core and a braided sheath around the core.
14. The apparatus of claim 1, wherein: the buckle is a unitary structure and has no moving parts and is attached to the proximal end of the cord via a rigid connection.
15. The apparatus of claim 1, wherein the proximal end of the cord is attached to the buckle by an attachment that passes through an opening in the buckle, the opening being separate from the eyelet.
16. The apparatus of claim 15, wherein the attachment is connected between the buckle and the proximal end of the cord such that the proximal end of the cord is not directly attached to the buckle.
17. An apparatus, comprising: at least one cord comprising a proximal end and a distal end; and at least one buckle comprising an eyelet and a locking feature, wherein the cord is configured to pass through the eyelet, wherein the locking feature is structured and arranged to selectively lock and unlock movement of the cord through the eyelet; and the buckle is a unitary structure and has no moving parts.
18. The apparatus of claim 17, wherein: the locking feature comprises plural teeth comprising: a first set of teeth circumferentially around a first side of the eyelet; and a second set of teeth circumferentially around a second side of the eyelet; and the plural teeth protrude outward from a convex surface that defines the eyelet.
19. The apparatus of claim 17, wherein: the eyelet is defined by a through-bore with a sidewall that is symmetric about a center plane of the buckle; and the locking feature comprises edges defined by an intersection of the sidewall and two opposed outer surfaces of the buckle.
20. An apparatus, comprising: at least one cord comprising a proximal end and a distal end; and at least one buckle comprising an eyelet and a locking feature, wherein the proximal end of the cord is attached to the buckle; the distal end of the cord is configured to pass through the eyelet, wherein the cord and the buckle combine to form a continuous closed loop when the distal end of the cord is passed through the buckle; and the locking feature engages the cord and locks the cord relative to the buckle when the cord is positioned within the eyelet with its long axis non-parallel to an axis of the eyelet.
Description
BRIEF DESCRIPTION OF THE SEVERAL VIEWS OF THE DRAWINGS
[0010] Aspects of the present invention are described in the detailed description which follows, in reference to the noted plurality of drawings by way of non-limiting examples of exemplary embodiments of the present invention.
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DETAILED DESCRIPTION
[0025] The particulars shown herein are by way of example and for purposes of illustrative discussion of the embodiments of the present invention only and are presented in the cause of providing what is believed to be the most useful and readily understood description of the principles and conceptual aspects of the present invention. In this regard, no attempt is made to show structural details of aspects of the present invention in more detail than is necessary for the fundamental understanding of the aspects of the present invention, the description taken with the drawings making apparent to those skilled in the art how the several forms of aspects of the present invention may be embodied in practice.
[0026] Aspects of the invention generally relate to cord locking devices and articles of clothing including a cord and a cord locking device. Embodiments of the invention include an apparatus to lock and unlock a cord or multiple cords and restrict the cord or multiple cords from moving. A first embodiment utilizes a buckle that includes an eyelet comprising of plural concentric teeth at each of the inlet and outlet of the eyelet. A second embodiment utilizes edges (e.g., ridges) at the inlet and outlet of the eyelet. In both embodiments, the buckle comprising the eyelet is secured to the proximal end of at least one cord allowing the distal end of at least one cord to pass through the eyelet. The eyelet provides a releasable lock to the cord. As the cord passes through the eyelet parallel to the central axis of the eyelet, the eyelet allows the cord to pass freely. When the cord is turned to approach a perpendicular orientation to the eyelet axis the eyelet, the teeth or edges are engaged and this secures the cord from moving. The teeth or edges can engage the cord at a very low angle and as the angle increases so does the teeth/edge engagement resulting in higher tension capacities. The buckle comprising the eyelet can be maneuvered or positioned in various angles to adjust teeth/edge engagement and various cord slippage forces. Additionally, the buckle and eyelet can be designed or modified to meet a desired engagement angle, rope configuration or tension capacity. The buckle comprising the eyelet can be released by moving it towards the parallel position. The buckle comprising the eyelet can be reengaged by moving back to the perpendicular position. The tension applied to the buckle by the distal end of the cord can also provide for self-locking or self-arresting buckle to the locking position. An embodiment of the buckle design requires no moving parts and allows for easy adjustment from the unlocked and locking position and anywhere in between.
[0027] A preferred embodiment uses the described buckle and cord as a belt to be worn around the waist of a user. In this embodiment, the buckle is secured to the proximal end of at least one cord, leaving the distal end of the cord available to go through the eyelet. This embodiment comprising a belt arrangement has the following features: it allows the cord to slide easily under compression but engage and lock under tension; it allows for multiple adjustable positions; it is releasably locking; and it can be designed to slip at a specific tension.
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[0029] In embodiments, the cord 15 comprises an elongate flexible member such as a rope. In a particular embodiment, the cord 15 comprises a rope comprising a core and a sheath around the core. The cord 15 may be composed of any suitable materials, including without limitation: organic material (e.g., cotton, hemp, etc.), polymer material (e.g., nylon, dacron, etc.), and a mixture of organic and polymer materials. In an example embodiment, the cord 15 has a diameter of about 8 mm and a length of between 24 and 56 inches, although other diameters and lengths may be used in implementations of the invention. In a particular preferred embodiment, the cord 15 comprises an 8 mm climbing rope comprising a core and a braided nylon sheath around the core, and has a length of between 24 and 56 inches.
[0030] According to aspects of the invention, the buckle 20 has an eyelet 50 for which the cord 15 passes through, an opening 55 structured and arranged to receive the attachment 30, and a locking feature that selectively locks and unlocks movement of the cord 15 through the circular opening. In one embodiment, the locking feature consists of teeth around the opening of the eyelet 50. In another embodiment, the locking feature consists of one or more sharp edges formed at the edges of the opening of the eyelet. In both embodiments, the eyelet 50 has only a single opening through which the cord 15 passes through only a single time. In both embodiments, the eyelet 50 is devoid of (i.e., does not include) moving parts. In embodiments, the attachment 30 comprises an element that passes through the opening 55 and is attached to the proximal end 25 of the cord 15, such that the proximal end 25 of the cord 15 is not directly attached to the buckle 20. In embodiments, the attachment 30 comprises a flexible element such as webbing, such as cotton and/or nylon webbing or similar material, that is looped through the opening 55 and that is connected to the proximal end 25 of the cord 15 by technique such as sewing, adhesive, clamp, etc. The opening and attachment 30 create a hinged connection between the buckle 20 and the proximal end 25 of the cord 15. In this manner, in embodiments the buckle is a unitary structure and has no moving parts and is attached to the proximal end of the cord via a hinged connection. Alternatively, in other embodiments, the attachment 30 and buckle 20 may be a rigid element, with or without a hinge, such as the buckle being an overmold on the proximal end of the cord, for example.
[0031] In embodiments, the buckle 20 comprises a unitary element composed of a single material. In one example, the buckle 20 is a unitary element composed of sturdy polymer, and is formed using molding, milling, or 3D printing techniques. In another example, the buckle 20 is a unitary element composed of metal or metal alloy, and is formed using forging, stamping, or milling techniques.
[0032] In embodiments, the distal end 35 is provided with an end termination that prevents fraying of the cord 15. In embodiments, the end termination is the same size or smaller than the outer diameter of the cord 15, so that the end termination fits through the opening in the eyelet 50. In one example, the end termination comprises a sleeve that compresses the tip of the distal end 35 of the cord 15 (the sleeve may be shrink fit, sewn, and/or adhered to the cord 15). In another example, the end termination comprises a melted portion of the sheath of the cord 15. In embodiments, in addition to having an end termination, the distal end 35 of the cord 15 is devoid of (i.e., does not have) any loops, knots, and rigging and/or connecting hardware. Such additional elements would prevent the distal end 35 from passing through the opening in the eyelet 50 in the manner described herein.
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[0034] In embodiments, the buckle 20 is similar to the buckle 20 except that buckle 20 has an eyelet 50 that is sized and shaped to correspond to more than one portion of cord 15. In the example shown in
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[0046] In each of the buckles described herein (e.g., buckle 20, buckle 20, buckle 20, and buckle 20), the buckle may comprise a body that defines an eyelet 50 and an opening 55, the opening 55 being used with attachment 30 as described herein.
[0047] In embodiments, a length of the buckle 20, 20, 20 and 20 as measured from an axis 75 of the eyelet 50 to the hinge axis 86 of the buckle is 0.25 inches to 2.0 inches (as shown by L in
[0048] In accordance with aspects of the invention, the eyelet 50 is an opening through the buckle 20 (and its other embodiments) that the distal end 35 of the cord 15 is designed to pass through and be selectively locked, by the locking feature, relative to the buckle 20. The eyelet 50 is shown in the figures as a circular opening. However, the eyelet 50 may have other shapes provided that the shape achieves the selective locking and unlocking as described herein. In some embodiments, the eyelet 50 is a circular opening and the diameter of the eyelet 50 is substantially equal to the outer diameter of the cord 15 (e.g., plus or minus 0% to 5% difference in the diameters). In this manner, the cord 15 fills essentially the entire eyelet 50 when the cord 15 is positioned in the eyelet 50 in the unlocked position. In this exemplary embodiment, these matching dimensions provide the advantage of producing a static friction force between the cord 15 and the buckle 20 when the distal end 35 of the cord 15 is positioned in the eyelet 50 of the buckle 20 in the unlocked position. This static friction force (in the unlocked position) is of sufficient magnitude to prevent the distal end 35 of the cord 15 from slipping or moving in the eyelet 50 under its own weight, but is also sufficiently small that it is easily overcome by a user applying a pushing or pulling force to move the cord 15 within the buckle 20. This differentiates embodiments of the invention from traditional belts in which a diameter of an opening of an eyelet is much larger than an outside diameter of a material passing through the eyelet, since such traditional belts do not have the degree of static friction described herein.
[0049] According to aspects of the invention, the eyelet 50 comprises teeth 65 on opposite sides 70a and 70b of the eyelet 50. In embodiments, the teeth 65 on each side are arranged concentrically around an axis 75 that defines the center the eyelet 50. In embodiments, the teeth 65 on each side have equal size with one another and equal spacing between one another. In the example shown, each side has fifteen teeth 65, although other numbers of teeth 65 may be used.
[0050] In embodiments, the teeth 65 protrude outward from a convex surface that defines the opening of the eyelet 50. In particular embodiments, the teeth 65 do not extend into a circular area defined by the eyelet 50. For example, as shown in
[0051] With reference now to
[0052] As should be understood from the description thus far, a user may use the belt 10 in the following manner. First, with the distal end 35 not yet passing through the buckle 20, the user wraps the belt 10 around their waist, e.g., through belt loops in a garment such as pants, shorts, etc. The user then passes the distal end 35 through the eyelet 50 in the buckle 20 while the cord 15 is in the unlocked position. The user continues moving the cord 15 through the buckle 20 until the user finds the desired snugness of the belt 10. The user then bends the distal end 35 of the cord 15 relative to the buckle 20 to put the cord 15 in the locked position. Additionally or alternatively to the user bending the distal end 35 by manually moving the distal end 35 relative to the buckle 20, the user may also place the belt into the locked position by grasping intermediate portions of the cord 15 on opposite sides of the buckle 20 and pulling these portions in opposite directions away from the buckle 20; the force provided by this pulling, combined with the arrangement of the proximal end attached to the buckle 20 and being hinged by the opening 55 of the buckle 20 causes a portion of the cord 15 in and around the opening to bend into a position where the cord 15 engages the edge (80a or 80b) or one or more of the teeth 65 of the eyelet 50. In this manner, the apparatus includes a self-locking functionality. The user may adjust the snugness of the belt 10 at any time by moving the cord 15 to the unlocked position, and then moving the distal end 35 forward or backward through the buckle 20. In this manner, the belt 10 is infinitely adjustable, and is not limited to a discrete number of sizes. After finding the desired snugness and arranging the cord 15 in the locked position, the user may stow the remainder of the distal end 35 by, for example, tucking it into an adjacent belt loop, tucking it into or around a portion of the cord 15, or may let the distal end 35 hang down freely. To remove the belt 10, the user moves the cord 15 to the unlocked position and then pulls the distal end 35 backward through the buckle 20 such that the cord 15 is no longer passing through the buckle 20.
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[0054] In this manner, when the cord 15 is positioned with its long axis 77 (of the part of the cord 15 within and around the eyelet 85) parallel to the axis 75 of the eyelet 85, and without bending into contact with the edges 80a, 80b, the cord 15 may pass relatively easily through the bore 85 (i.e., in an unlocked position, as shown in
[0055] With reference now to
[0056] In embodiments, the buckle 20 is similar to the buckle 20 except that buckle 20 has an eyelet 50 that is sized and shaped to correspond to more than one portion of cord 15. In the example shown in
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[0059] It is noted that the foregoing examples have been provided merely for the purpose of explanation and are in no way to be construed as limiting aspects of the present invention. While aspects of the present invention have been described with reference to an exemplary embodiment, it is understood that the words which have been used herein are words of description and illustration, rather than words of limitation. Changes may be made, within the purview of the appended claims, as presently stated and as amended, without departing from the scope and spirit of the present invention in its aspects. Although aspects of the present invention have been described herein with reference to particular means, materials and embodiments, aspects of the present invention are not intended to be limited to the particulars disclosed herein; rather, aspects of the present invention extend to all functionally equivalent structures, methods and uses, such as are within the scope of the appended claims.