This disclosure relates generally to buckle and strap devices and more particularly to infinitely adjustable clothing belts for cinching an article of clothing around the waist.
Conventional waist belts are limited in their ability to adjust to the size of the waist of the wearer. A common system for length adjustment uses a set of equally spaced holes punched through the belt material and a prong to insert through one of the several holes. This often is deficient in providing a hole at a preferred position, resulting in a belt being either too tight or too loose on the wearer.
Another common style of belt attachment, which provides infinite adjustability, is a pair of rings through which the loose end of the belt is threaded, resulting in a clamping force. As the rings must not clamp so tightly that the wearer is prevented from cinching the belt, the ring-style belt loosens with body movement of the wearer. This results in the wearer being frequently required to re-tighten the belt.
Other belt systems use buckle assemblies of multiple components to provide various mechanisms to adjust belt circumference and clamp the belt strap. These systems increase the complexity of the belt and result in increased cost as well as belts with failure points that lower the expected useful life of the belt. The wearer might also need to be educated as to the function of the product and frequently become frustrated with how to adequately operate the belt.
Accordingly, there is a need for a waist belt adjustment system that is easy to use, inexpensive, infinitely adjustable, securely fastening, and simple in design so as to provide a long useful lifetime.
Adjustable buckle and strap assemblies of the present invention are comprised of a novel buckle having a chamber through which a strap is pulled for the purpose of cinching the strap. Within the chamber is a post around or beside which the strap is positioned while being pulled. The configuration of the post and chamber is such that the strap may be placed sideways around or beside the post rather than being threaded through a void, thereby making the strap easier to fasten and unfasten from the strap.
In one embodiment, a clothing belt of the present invention comprises a planar buckle body continuous with a post that is partially shrouded by a chamber having a ceiling and an open floor. A slot for attaching a strap to the buckle without adjustability penetrates through one end of the planar body. A chamber at the opposite end of the body is configured to attach to the loose end of the strap and provide an adjustable connection. The post of the buckle body extends downward from the ceiling of the chamber and is partially shrouded by chamber walls before ending at the chamber floor.
The chamber penetrates through the front and back side of the buckle body and is open to its bottom edge. Within the chamber, the strap is positioned around the post for cinching. The strap may be directed into the chamber and around the post in one of several different routes to hold tension on the strap after the loose end is of the strap is pulled.
In a similar embodiment, a planar buckle comprises a post that is continuous with the body of the buckle and partially shrouded by a chamber having a closed floor. The chamber penetrates through the front and back sides of the buckle and is closed at the top and bottom edges of the buckle body. The post, running parallel to a slot at the opposite end of the body, extends from the ceiling of the chamber only part way to the floor, leaving a gap between the tip of the post and the floor. As a result of the gap, a strap may be placed sideways around the post; by looping the side of the strap over the post and sliding it sideways between the post and the chamber floor, instead of being slid sideways through a void at the bottom.
In another embodiment, a buckle comprises a combined post and chamber on an opposite end of a buckle body from a slot adapted for removably fixing an anchoring end of a strap to the buckle. In this embodiment, the chamber comprises and open floor and the post serves as a wall of the chamber at the distal end of buckle body. The loose end of the strap is threaded through in only one direction, from front to back, and slid between the strap and the body of the wearer. The clamping force on the strap comes from the tension on the strap itself around the body. The clamping force can be increased significantly by having a small radius (sharp corner) on the back edge of the wall of the chamber.
Straps may be attached to the non-adjustable end of a buckle of the present invention by forming a loop in the strap using a variety of closures such as snaps, threaded screw fasteners or rivets, etc., after the anchoring end has been threaded through the slot at the non-adjustable end of the buckle. Alternatively, a strap may be adapted to simply hook into a buckle slot or be attached by simply sewing a loop of the strap together after the anchoring end has been threaded through the slot of the buckle at the non-adjustable end. Alternatively, the slot of the buckle on the non-adjustable end can have a slight break in the outer wall, located near the middle of the slot, allowing a sewn loop to be deformably inserted into the slot and then straightened to be centered in the slot, thereby becoming removably connected to the slot.
Straps may be attached to the adjustable end of a buckle of the present invention by placing the strap sideways in the chamber and around or beside the post of the buckle, or alternatively, by threading the tip of the loose end of the strap into the chamber and around or beside the post in a conventional manner. A single strap, attached at both the adjustable and non-adjustable ends of a buckle, may be used to function as a belt for cinching around an article of clothing.
Preferred embodiments of the present invention comprise chambers with one or more catches on its chamber walls to help retain a strap within the chamber. Buckle bodies used with a strap as part of a belt for cinching clothing are preferably curved to conform to the anatomy of a wearer.
Adjustable buckle and strap assemblies of the present invention comprise a novel buckle configured such that a strap may be placed sideways into a chamber of the buckle rather than being threaded through a void. Flexible straps attached to buckles of the present invention do not need holes for adjustment and are easily fastened, adjusted, and unfastened. Once routed through the buckle chamber, the strap can be adjusted without conforming to incremental limitations by simply pulling the loose end of the strap until the desired length or tension of the strap is reached.
The tension force is provided by the frictional force of the strap wrapping around the post and the changing angle of the strap at the edges of the chamber walls. The frictional force can be controlled by increasing or decreasing the rate of angular change of the strap at the corner edges of the post and chamber walls by decreasing or increasing the corner radius. Tightening the belt is accomplished by reducing the frictional force by pulling the adjustable end of the buckle away from the body of the wearer so that the strap no longer wraps around the sharp corners with small radius on the back of the buckle. Once the strap is adjusted and the buckle is released to lay flat against the body again, the strap once again has an angular change at the sharp corners with small radius and the resulting frictional force prevents the strap from slipping and loosening.
The following descriptions of particular embodiments refer to accompanying drawings. The same reference numbers in different drawings identify the same or similar elements. The language, examples, and embodiments shown and/or described herein are provided for description and not limitation. Rather than being limited to the details of the particular arrangements shown, the present warming sleeve invention is to be understood to include the many combinations of features and/or elements referenced herein in keeping with the spirit and scope of the present disclosure.
As used herein, the term “anchoring end” when referring to an end of a strap refers to the end of the strap that is permanently or removably attached to the non-adjustable end of a buckle. The anchoring end of a strap is opposite the “loose end” of the strap that is typically used for adjustability.
The term “loose end” when used herein refers to a portion of a strap that is opposite the “anchoring end” of the strap. The “loose end” includes not only the tip but also a length of the strap that is sufficient to operate the strap with a buckle in accordance with the present invention.
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Within the chamber 12 is a post 16 that is interposed between and partially shrouded by the chamber walls 28. The base 18 of the post is continuous with the buckle body 02 and projects downward from the ceiling 26 of the chamber in the direction of the floor 30. At the bottom end of the post is a tip 22 interposed between the catches 32 of the chamber walls 28. The post 16 is chamfered or rounded between the base 18 and the tip 22 where the post 16 meets the front side 04 of the buckle body 02. The limited space between the tip 22 of the post and the catches 32 of the chamber walls help retain straps securely positioned around the post 16 in the chamber.
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The strap 34 is comprised of an anchoring end 36 and a loose end 38 and is fitted with a pair of snap closures 40 positioned at the anchoring end. When the snaps are closed, the anchoring end 36 of the strap forms a loop for conveniently attaching to the slot 08 at the non-adjustable end 10 of the buckle. The snaps 40 may be repeatably opened and closed to separate the strap 34 from the buckle, allowing the strap to be easily replaced for maintenance or aesthetic reasons.
The buckle and strap assembly of
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In other embodiments of buckles according to the present invention, the length of the buckle may be extended or reduced and the chamber may be positioned closer or further from the slot. Likewise, the slot may be positioned at other positions along the buckle length, parallel to the chamber. In another embodiment, the body of a buckle is not rectangular or planar but highly decorative instead.
Straps may be routed through chambers of buckles of the present invention in one of several ways. Shown in
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The chamber 12 of the buckle of
A loose end of a strap may be attached to the adjustable end of the buckle of
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The chamber comprises a ceiling 26, a wall 28 continuous with the ceiling, and an open floor 30. The chamber wall extends from the ceiling 26 of the chamber, along a width of the body 02, to be continuous with the bottom edge 24. Also running along the width of the body, as part of the chamber 12, and opposite from the chamber wall 28 is a post 16 that extends from the ceiling 26 of the chamber to the bottom edge 24 of the body. The tip of the post 16 comprises a catch 32 and the post functions as a second wall of the chamber 12.
The loose end of a strap may be directed sideways into the chamber 12 between the post 16 and the chamber wall 28 for adjustable fastening to the buckle. Alternatively, the extremity of a loose end of a strap may be inserted through the chamber from the front side 04 of the buckle.
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The open floor feature of the buckle shown in
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Similarly, a strap may be routed through the adjustable end of the buckles of
Straps for buckles and buckle and strap assemblies of the present invention are preferably replaceable, with repeatably operable closures and should made of strong, flexible material. The material can be woven fabric, webbing, or solid material. Preferred materials for such straps include Kevlar®, cotton, polyethylene, polypropylene, and nylon.
Buckles of assemblies according to the present invention may be functionally or decoratively shaped and be largely non-planar, so long as the slot and chamber of the buckle body are parallel. Some embodiments of buckle bodies may be shaped with specialized edges and/or voids to function as tools and are preferably made from harder materials to resist wear and damage from such use. Such materials can also be decoratively plated or coated, or engraved, to provide additional adornment.
Buckles of the present invention are best made from non-reactive, rigid materials such as work hardened or heat treated sheets of metals like stainless steel, brass, titanium, or other non-reactive metals. Inferior metals, prone to corrosion, could be used with the application of a coating or plating to slow or prevent deterioration. Aluminum, plastic, ceramic, fiber reinforced resin, or carbon fiber can also be used as options for fabrication the present invention. Buckles made from less substantial materials such as aluminum should be made thicker or with wider posts, or both, to provide enough strength to securely fasten a strap.
Buckles of the present invention may be manufactured by a variety of methods. In the preferred method, the fine geometry of a buckle is laser cut from a sheet of metal. Top edges of the post are chamfered using a CNC end mill. Alternatively, the buckle can be cut by plasma, water jet, sawing, or even entirely on an end mill. Curving of the planar buckle body is accomplished by use of a forming die in a press.
In another method of manufacture, the buckle is die cast in the shape of the final form and tumbled to the desired finish.
In yet another method of manufacture, the buckle is injection molded, either from plastic or metal, into the final form with little to no finishing required.
In yet another method of manufacture, the buckle is 3D printed from plastic or a combination of plastic and fibers, into the final form with little or no finishing required.
Although the present invention has been described with reference to a few simplified embodiments, numerous modifications and variations can be made within the scope of the present disclosure. No limitation with respect to the specific embodiments disclosed herein is intended or should be inferred. Rather, it should be understood that the particular features and structures shown and/or described in drawings, specification, or appended claims may be combined in any suitable manner in keeping with the spirit and scope of the present disclosure.
This application claims priority to U.S. Provisional Application No. 63/222,364, filed Jul. 15, 2021, entitled “ADJUSTABLE BUCKLE AND STRAP ASSEMBLY,” which is incorporated herein by reference in its entirety.
Number | Date | Country | |
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63222364 | Jul 2021 | US |