HYBRID FASTENER STRAP HAVING POSITIONING DETENTS
20180282036 ยท 2018-10-04
Inventors
Cpc classification
B65D2563/103
PERFORMING OPERATIONS; TRANSPORTING
Y10T24/141
GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
B65D63/1027
PERFORMING OPERATIONS; TRANSPORTING
Y10T24/1498
GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
Y02W90/10
GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
International classification
B65D63/10
PERFORMING OPERATIONS; TRANSPORTING
Abstract
The present invention relates to one-piece fasteners having a strap and a locking head utilized to secure elongate objects such as cables in a bundle, and in particular, to hybrid fasteners having both raised detents and locking teeth as part of the fastener strap.
Claims
1. A hybrid fastener, comprising: (a) an elongate flexible strap having a plurality of transversely arranged abutments disposed longitudinally along at least a portion of the elongate flexible strap; (b) at least one detent element disposed at a second end of the elongate flexible strap; and (c) a receiver head at a first end of the elongate flexible strap, the receiver head having a frame defining an inner aperture and a pawl that extends partially into the aperture; wherein when the second end of the elongate flexible strap is inserted into the receiver head to form a loop with the elongate flexible strap, the at least one detent element is configured to releasably engage the pawl, and when the elongate flexible strap is inserted further into the receiver head, the plurality of transversely arranged abutments are configured to lock against the pawl.
2. The hybrid fastener of claim 1, wherein the elongate flexible strap has a channel within one surface of the elongate flexible strap, and the plurality of transversely arranged abutments are disposed within the channel.
3. The hybrid fastener of claim 1, wherein the at least one detent element is configured to have a profile shape selected from a hemispherical-button profile, a cylindrical-button profile, a circular profile, a parabolic profile, a triangular profile, a flat-topped profile, a sinusoidal profile, a channeled profile, a complex curvilinear profile, and a polygonal profile.
4. The hybrid fastener of claim 1, wherein the at least one detent element is a raised detent.
5. The hybrid fastener of claim 1, wherein the at least one detent element is a recessed detent.
6. The hybrid fastener of claim 1, wherein the aperture defined by the frame of the receiver head is rectangular, is funnel-shaped in a single planar axis, or is funnel-shaped in a first planar axis and in a second planar axis.
7. The hybrid fastener of claim 1, wherein the aperture defined by the frame of the receiver head is funnel-shaped in a first planar axis and funnel shaped in a second planar axis, defining a vortex shape.
8. The hybrid fastener of claim 1, wherein the abutments extend along a majority of the strap.
9. The hybrid fastener of claim 1, wherein the elongate flexible strap ranges from 5 cm-100 cm in length.
10. The hybrid fastener of claim 1, wherein the elongate flexible strap ranges in length from 5 mm-200 mm.
11. The hybrid fastener of claim 1, wherein the elongate flexible strap is constructed of thermo plastic polymer, metal, fibers, or combinations thereof.
12. The hybrid fastener of claim 1, wherein the elongate flexible strap is constructed of a polymer selected from the group consisting of: nylon, polyurethane, polyester, low density polyethylene, high density polyethylene, ultra-high molecular weight polyethylene, polyethylene terephthalate, polypropylene, polystyrene, polyvinyl chloride, polylactic acid, polychlorotrifluoroethylene, polyacrylonitrile, aromatic polyester, liquid crystal polymer, natural rubber, synthetic rubber such as neoprene and butadiene rubber, silicone, polysiloxane, block co-polymer, composite polymer, impregnated polymer, and combinations thereof.
13. The hybrid fastener of claim 1, wherein the elongate flexible strap is constructed of a metal selected from the group consisting of: steel, copper, aluminum, tin, titanium, nickel, zinc, and alloys thereof.
14. The hybrid fastener of claim 1, wherein the elongate flexible strap is constructed of a stamped metal, a cut metal, rolled sheet metal, or metal fibers.
15. The hybrid fastener of claim 1, wherein the elongate flexible strap is constructed of fibers, fibers incorporated into a structural matrix, natural fibers, cellulosic fibers extracted from hemp, cotton, plant leaves, wood or stems, glass fibers, silica fibers, ceramic fibers, metal fibers, and combinations thereof.
16. A hybrid fastener, comprising: (a) an elongate flexible strap having a plurality of transversely arranged abutments disposed longitudinally along an inner surface of the elongate flexible strap, wherein the abutments extend along a majority of the strap; (b) a receiver head at a first end of the elongate flexible strap, the receiver head having a frame defining an inner aperture and a pawl that extends partially into the aperture, wherein the aperture defined by the frame of the receiver head is rectangular, is funnel-shaped in a single planar axis, or is funnel-shaped in a first planar axis and in a second planar axis; (c) from one to five temporary holding detent elements disposed at a second end of the elongate flexible strap along the inner surface; and wherein when the second end of the elongate flexible strap is inserted into the receiver head to form a loop with the elongate flexible strap, the temporary holding detent elements are configured to releasably engage the pawl, and wherein when the elongate flexible strap is inserted further into the receiver head, the plurality of transversely arranged abutments are configured to lock against the pawl; wherein the temporary holding detent elements have a profile shape selected from a hemispherical-button profile, a cylindrical-button profile, a circular profile, a parabolic profile, a triangular profile, a flat-topped profile, a sinusoidal profile, a channeled profile, a complex curvilinear profile, and a polygonal profile; wherein the temporary holding detent elements are raised above the inner surface, or a recessed below the inner surface of the elongate flexible strap; wherein the elongate flexible strap is constructed of thermo plastic polymer, metal, fibers, or combinations thereof; wherein the polymer is selected from the group consisting of: nylon, polyurethane, polyester, low density polyethylene, high density polyethylene, ultra-high molecular weight polyethylene, polyethylene terephthalate, polypropylene, polystyrene, polyvinyl chloride, polylactic acid, polychlorotrifluoroethylene, polyacrylonitrile, aromatic polyester, liquid crystal polymer, natural rubber, synthetic rubber such as neoprene and butadiene rubber, silicone, polysiloxane, block co-polymer, composite polymer, impregnated polymer, and combinations thereof; wherein the metal is selected from the group consisting of: steel, copper, aluminum, tin, titanium, nickel, zinc, and alloys thereof; and, wherein the elongate flexible strap is constructed of a stamped metal, a cut metal, rolled sheet metal, or metal fibers;
17. The hybrid fastener of claim 16, wherein the elongated flexible strap ranges from 5 cm-100 cm in length.
18. The hybrid fastener of claim 16, wherein the elongated flexible strap ranges in length from 5 mm-200 mm.
19. The hybrid fastener of claim 16, wherein the elongate flexible strap is constructed of fibers, fibers incorporated into a structural matrix, natural fibers, cellulosic fibers extracted from hemp, cotton, plant leaves, wood or stems, glass fibers, silica fibers, ceramic fibers, metal fibers, and combinations thereof.
Description
BRIEF DESCRIPTION OF DRAWINGS
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DETAILED DESCRIPTION OF THE INVENTION
[0056] The embodiments herein and the various features and advantageous details thereof are explained more fully with reference to the non-limiting embodiments that are illustrated in the accompanying drawings and detailed in the following description.
[0057] Descriptions of well-known components and processing techniques are omitted so as to not unnecessarily obscure the embodiments herein.
[0058] The examples used herein are intended merely to facilitate an understanding of ways in which the embodiments herein may be practiced and to further enable those of skill in the art to practice the embodiments herein. Accordingly, the examples should not be construed as limiting the scope of the embodiments herein.
[0059] Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the invention to those skilled in the art.
[0060] Like numbers refer to like elements throughout.
[0061] As used herein the term and/or includes any and all combinations of one or more of the associated listed items. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the full scope of the invention.
[0062] As used herein, the singular forms a, an and the are intended to include the plural forms as well, unless the context clearly indicates otherwise.
[0063] It will be further understood that the terms comprises and/or comprising, when used in this specification, specify the presence of stated features, integers, steps, operations, elements, and/or components, but do not preclude the presence or addition of one or more other features, integers, steps, operations, elements, components, and/or groups thereof.
[0064] In a preferred embodiment, the invention includes a hybrid fastener that comprises an elongate flexible strap having a plurality of transversely arranged abutments disposed longitudinally along at least a portion of the elongate flexible strap, and a positioning detent structure that is part of the strap that temporarily holds the strap in position within the frame of the receiver head by releasably engaging the pawl that extends into the space or aperture defined by the frame of the receiver head, and which can be released by applying a force to remove the second end of the strap from the receiver head.
[0065] The term hybrid refers to a strap having two or more types of pawl-engaging structures one or both sides of the strap.
[0066] The term elongate refers to a strap having a longitudinal aspect that is dominant to the other dimensions, e.g. longer than it is wide or thick. In preferred aspects, the straps range from 5 cm-100 cm in length for e.g. cable ties, industrial uses, conduit, etc. In other preferred aspects, the straps range in length from 5 mm-200 mm for e.g. surgical applications or electronic applications. In other preferred embodiments, the straps range range from 0.5 cm-5 cm in width and 0.05-0.5 cm in thickness. In another preferred embodiment, there is provided a hybrid fastener, wherein the elongated flexible strap ranges in width from 5 mm-200 mm.
[0067] Straps are constructed of thermo plastic polymer, metal, fibers, and combinations thereof.
[0068] The term polymer means nylon, polyurethanes, polyesters, low density polyethylenes, high density polyethylenes, ultra-high molecular weight polyethylenes, polyethylene terephthalates, polypropylenes, polystyrenes, polyvinyl chlorides, polyvinylidene polymers including PVDF (fluoride), fluoropolymers including polytetrafluoroethylene and ePFTE, polylactic acid polymers, polychlorotrifluoroethylenes, polyacrylonitrile polymers, aromatic polyesters including liquid crystal polymers, natural rubbers, synthetic rubbers such as neoprene and butadiene rubbers, silicones (polysiloxanes), block co-polymers, composite polymers and impregnated polymers, e.g. silnylon.
[0069] The term metal means steel, copper, aluminum, tin, titanium, nickel, zinc, and alloys including these such as Nitinol (R), Brass, etc. Metal made be from a stamped, cut or rolled sheet, or made be made from metal and other fibers.
[0070] The term fibers contemplated as within the scope of the invention include fibers which are incorporated into the structural matrix, and especially naturally occurring fibers, such as cellulosic fibers extracted from hemp, cotton, plant leaves, wood or stems, or fibers made from glass, silica, ceramic, metal, and combinations thereof.
[0071] The term detent means a structure that is part of the strap that temporarily keeps the strap in position within the frame of the receiver head by releasably engaging the pawl that extends into the space or aperture defined by the frame of the receiver head, and which can be released by applying a force to remove the second end of the strap from the receiver head.
[0072] The detent may be made of the same or different material than the strap and/or the abutment teeth. In one preferred aspect, the strap, receiver head, abutment teeth, and positioning detents are formed as an integral (single) piece, e.g. by extrusion, stamping or 3-D printing. The detents may also be made of a slightly harder or softer material than the abutment teeth depending on the application for which the strap is intended.
[0073] The term plurality means one or more. The phrase plurality of transversely arranged abutments that are configured to lock against the pawl refers to teeth or similar structures that are on the surface of the strap or built within a channel of the strap.
[0074] It is also contemplated that the abutments and positioning detents may be formed, not on the surface of the strap, but on the edge of the strap, e.g. side-toothed, with the pawl device being disposed in the frame in a location appropriate for engaging the edge-located abutments and edge-located detents.
[0075] In one preferred aspect, the detent(s) is configured to have a profile shape selected from a hemispherical-button profile, a cylindrical-button profile, a circular profile, a parabolic profile, a triangular profile, a flat-topped profile, a sinusoidal profile, a channeled profile, a complex curvilinear profile, and a polygonal profile.
[0076] The positioning detent may be a raised detent or it may be a concave detent. A raised detent is a detent structured to lay above the surface of the local area of the strap around the raised detent. A concave detent is a detent structured to lay below the surface of the local area of the strap around the concave detent.
[0077] For a raised detent, a hemispherical button detent would have the appearance of a shallow dome, and a hemispheric cylinder detent would have the appearance of a disk. A circular profile would have the appearance of a speed bump on the strap surface and the rounded aspect would engage the pawl just enough to temporarily hold the strap within the receiver head. Similarly, a parabolic, triangular, or flat topped profile would have the appearance of a variety of speed humps or speed tables, and would also temporarily engage the pawl. A sinusoidal or channeled profile would allow a designer to use either a single center-located pawl or a full-transverse pawl, in order to control the amount of hold force that the detents exert against the pawl.
[0078] For a concave detent, the hemispherical button detent would be configured as a bowl or basin, and the concave hemispheric cylinder detent would be configured as a circular pit. For a concave detent, the circular profile would have the appearance of a trough on the strap surface and the rounded aspect would engage the pawl just enough to temporarily hold the strap within the receiver head. Similarly, a parabolic, triangular, or flat bottomed profile would have the appearance of a variety of differently shaped troughs and would also temporarily engage the pawl. A sinusoidal or channeled profile would be configured as a trough with an irregular bottom aspect that engages a single center-located pawl or a full-transverse pawl, in order to control the amount of hold force that the detents exert against the pawl.
[0079] Referring now to the FIGURES,
[0080] Elongated flexible strap 112 has a variety of lengths, widths, and thicknesses to provide different sizes and strengths for various applications.
[0081] Elongated flexible strap 112 contains two types of pawl engaging structures, e.g. teeththe plurality of transversely arranged abutments 114 i.e. locking teeth, that are disposed longitudinally along at least a portion of the elongate flexible strap 112. In a preferred aspect, the locking teeth 114 are located along the majority of the elongated flexible strap 112, and the rounded non-locking raised detents 116 located at only the tip or second end of the strap, the detent tab 118.
[0082] The receiver head 120 consists of an aperture 126 defined by a frame 122. In one aspect, the aperture 126 may be a taper mouth 128 having the pawl device 124 extending into the space of the opening 126 to facilitate engagement with the locking teeth 114 and the positioning detents 116.
[0083] The aperture 126 may be a straight-forward hollow rectangular structure. Alternatively, the aperture 126 can be configured as a funnel either as a horizontal funnel 130, or as a vertical funnel 132, or, having both sides of the internal surface of the receiver head having funnel-shaped interior sidewalls, both horizontal 130 and vertical 132, to guide the strap second end, aka detent tab 118 into frame/locking slot 122 that contains a pawl 124.
[0084] The pawl 124 and transverse abutments/locking teeth 114 provide one-direction, irreversible locking action on the elongated flexible strap 112, allowing the strap 112 to only be further pushed into receiver head 120, to be shortened. The elongated flexible strap 112 cannot pull out of the receiver 120 once the abutments 114 are engaged.
[0085] The pawl 124 and the positioning detent 116 with its releasable geometry provides reversible, two-direction, action on the elongated flexible strap 112, allowing the elongated flexible strap 112 to be pushed into the receiver head 120 and pulled out of the receiver 120 with a the application of a slight force. While the pawl 124 engages the positioning detent(s) 116, it provides some holding strength to facilitate easy manipulation of the strap 112 using one hand to gather, e.g. cables or other elongated items, to temporarily lock the strap 112 in place using a single hand, and then provide the ability to remove the hand, grasp the threaded end 118 of the strap 112, and pull the loop closed to engage the abutments 114 and lock the strap 112 in a closed position.
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[0116] Although exemplary and preferred aspects and embodiments of the present invention and forming methods have been described with a full set of features, it is to be understood that the disclosed container and method of manufacture may be practiced successfully without the incorporation of each of those features. The scope of the present invention is not limited only to the tamper-resistant/evident containers and methods of manufacture disclosed herein. Thus, it is to be understood that modifications and variations may be utilized without departure from the spirit and scope of the invention and method disclosed herein, as those skilled in the art will readily understand. Such modifications and variations are considered to be within the purview and scope of the appended claims and their equivalents.