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Publication numberUS3735449 A
Publication typeGrant
Publication dateMay 29, 1973
Filing dateFeb 28, 1972
Priority dateFeb 28, 1972
Publication numberUS 3735449 A, US 3735449A, US-A-3735449, US3735449 A, US3735449A
InventorsRosales L
Original AssigneeWestern Filament Inc
Export CitationBiBTeX, EndNote, RefMan
External Links: USPTO, USPTO Assignment, Espacenet
Chevron bundle tie
US 3735449 A
Abstract
A one-piece bundle tie comprising a strap having at one end a lock member into which the other end of the strap can be inserted. One face of the strap is provided with a plurality of transverse teeth, each tooth having locking faces formed as a chevron. The lock member comprises a head having an aperture therethrough to pass the strap and a pawl carried therein, the distal faces of the pawl having a chevron configuration in correspondence to and for cooperative engagement with the chevron-formed tooth faces of the strap. The pawl is dependent from a ledge within the locking head aperture, the ledge having lateral faces extending between opposite walls of the aperture and spaced from said opposite walls to impart flexure to the pawl.
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Description  (OCR text may contain errors)

United @tates Patent [191 Rosales CHEVRON BUNDLE TIE [75] Inventor: Louis A. Rosales, Manhattan Beach,

Calif.

[73] Assignee: Western Filament, Inc., Glendale,

Calif.

[22] Filed: Feb. 28, 1972 [21] Appl. N0.: 229,722

[451 May 29, 1973 FOREIGN PATENTS OR APPLICATIONS 518,012 3/1953 Belgium ..24/l6 PB Primary Examiner-Donald A. Griffin Attorney-Robert Berliner [57] ABSTRACT A one-piece bundle tie comprising a strap having at one end a lock member into which the other end of the strap can be inserted. One face of the strap is provided with a plurality of transverse teeth, each tooth having locking faces formed as a chevron. The lock member comprises a head having an aperture therethrough to pass the strap and a pawl carried therein, the distal faces of the pawl having a chevron configuration in correspondence to and for cooperative engagement with the chevron-formed tooth faces of the strap. The pawl is dependent from a ledge within the locking head aperture, the ledge having lateral faces extending between opposite walls of the aperture and spaced from said opposite walls to impart flexure to the pawl.

8 Claims, 7 Drawing Figures CHEVRON BUNDLE TIE FIELD OF THE INVENTION BACKGROUND AND SUMMARY OF THE INVENTION A wide variety of bundle ties are known which include a strap portion and locking head at one end thereof and in which the strap portion is provided on one face with a plurality of teeth for selective engagement with a locking pawl carried within the head. In

this regard, see U.S. Pat. Nos. 588,848, 876,402, 1,003,907, 1,663,621, 1,823,043, 2,361,506, 2,759,390, 2,936,980, 2,979,794, 3,086,265, 3,099,054, 3,102,311, 3,127,648, De 201,798, 3,353,327, 3,368,247, 3,376,004, 3,484,905,

3,490,104 and 3,605,199. Although a great many de signs and arrangements are shown by such art, the securing action of the ties are generally limited to the effectiveness of the strap-head lock arrangement. Furthermore, the configuration of the locking pawl often limits flexibility thereby limiting the extent of engagement of the pawl with the locking face of the strap tooth.

The present invention provides a bundle tie of onepiece resilient construction having features which not only aid in forming a securely locked disposition around a bundle of cables or the like, but which also provide a gripping surface for direct frictional engagement with the cables or other bundled components to an extent not heretofore achieved. These characteristics are obtained by using a chevron configuration for the strap teeth and for the distal, tooth engaging end of the locking head pawl, and is aided by a cantilever support for the pawl within the locking head.

BRIEF DESCRIPTION OF THE DRAWINGS FlG..1l is a perspective view of a bundle tie of this invention;

FIG. 2 is an enlarged plan view of the head end of the tie;

FIG. 3 is a cross section taken on line 3-3 of FIG. 2, in the direction of the arrows;

FIG. 4 is a cross section taken on line 4-4 of FIG. 3, in the direction of the arrows;

FIG. 5 is a cross section similar to that of FIG. 4 but with the free end of the strap engaged by the pawl;

FIG. 6 is a side, somewhat diagrammatic view of the bundle tie in a locked position; and

FIG. 7 is a perspective view of the underside of the free strap end taken on line 7-7 of FIG. 1, in the direction of the arrows.

DETAILED DESCRIPTION Referring to FIGS. 1, 2 and 3, the bundle tie consists of a strap 10 and a lock member 12 constructed in one piece of a resilient, yet generally shape-retaining plastic such as nylon, polyethylene, polyvinylchloride, or the like. The strap 10 has a plurality of teeth 14 each in the form of a chevron and raised from the planar face of the strap. Thus, each tooth 14 is formed with locking faces 16 and 18 forming an acute angle with a longitudinal medial axis 20 of the strap, the faces 16 and 18 meeting at the medial axis to form a wedge or chevron shape. An obtuse angle, such as at 22, is formed by the joinder of the two faces 16 and 18, but other angles are comprehended within the broader aspects of the invention. The strap 10 is formed with a tapered leading end 24 to facilitate insertion into the head 12.

The head 12 is formed with an aperture 26 which extends therethrough, the rear face 28 of the head being uninterrupted and the front face 30 having a ledge 32 (see FIG. 5) extending in cantilever fashion therefrom. The ledge 32 is formed with lateral faces 34 and 36 which are spaced from the opposite side walls 38 and 40, respectively, of the head 12.

A pawl 42 is carried by the ledge 32, dependent therefrom with its proximal end merged with the distal end of the ledge 32, as shown at 44. See also, FIG. 4 where it can be seen that the longitudinal axis 46 of the pawl 42 forms an obtuse angle 48 with the top surface of the ledge 32, the distal end of the pawl 42 being spaced from the rear face 28 of the head a distance substantially the width 50 of the planar strap portion, allowing entry of the strap 10 therebetween. The distal end of the pawl 42 is spaced from the front face 30 of the pawl head 12. By forming the lateral faces 34 and 36 of the ledge 32 spaced from the head side walls 38 and 40, a cantilever support for the pawl 42 is provided whereby the pawl may be readily flexed toward the front head wall 30 by the ratchet action of the strap teeth 14.

The pawl 42 has a pair of distal faces 52 and 54 which join to form a chevron configuration in correspondence to, and for cooperative engagement with, the chevron configurated faces 16 and 18 of the strap teeth 14. Thus, as illustrated particularly in FIG. 3, the distal pawl faces 52 and 54 join to form an obtuse angle 56 which is substantially the same as the angle 22 (FIG. 2) formed by joinder of the faces 16 and 18 of each strap tooth 14. Referring specifically to FIG. 4, the locking faces of each strap tooth 14 is formed to extend from the planar face of the strap 10 at an acute angle 58 with respect to the longitudinal axis 60 of the strap 10. Each distal face, such as 52, of the pawl 42 is formed at substantially the same angle 62 with respect to the axis 64 of the head aperture 26. There is thus assured a close, cooperative, locking engagement between the pawl 42 and strap teeth 14.

Referring to FIGS. 5 and 6, when it is desired to secure a bundle of cables (shown by dashed lines 66), or the like, the strap 10 is looped upon itself to curve around the cables 66 so that the leading edge 24 is passed through the head 12. The strap teeth 14 cause a ratchet-like flexure of the pawl 42 until the strap 10 is passed through the head a desired distance, whereupon the distal pawl faces 52 and 54 matingly engage the selected tooth faces 16 and 18, locking the strap 10 against withdrawal of the head 12. When the strap 10 has been pulled through the head 12 forming a tight securement of the cables 66, the chevron configurated teeth 14 bear directly against the cables 66 and, as a result of the chevron configuration thereof, bite against the surfaces of the cables 66 securely gripping the cables and preventing their rotational displacement. The gripping action of the chevron configurated teeth 14, as a result of the angle of contact thereat, is an effective deterrent against slippage of the strap 10 along the lengths of the cables 66.

Referring now to FIG. 7, the under surface 68 of the terminal strap end 24 is beaded to provide a roughened 3 grip surface 70, facilitating tight wrapping of the strap around the cables 66.

As required, details of an illustrative embodiment of the invention have been disclosed. However, it is to be understood that this embodiment merely exemplifies the invention which may take forms different from the specific illustrative embodiment disclosed. Therefore, specific structural and functional details are not necessarily to be interpreted as limiting, but as a basis for the claims appended hereto.

I claim:

1. A one-piece bundle tie of resilient, but generally shape-retaining material adapted to be looped upon itself in adjustable self-locking relation, comprising:

a strap portion having a plurality of transverse teeth spaced longitudinally thereof, each tooth having faces forming a chevron;

a head at one end of said portion, said head having an aperture therethrough to pass the strap;

a pawl carried in said aperture, said pawl having distal faces forming a chevron configuration in correspondence to, and for cooperative engagement with, a said chevron formed tooth, said distal end extending into the path of said strap to engage a selected one of said teeth when said strap is passed through said head.

2. The invention according to claim 1 including a ledge extending into said aperture from a wall thereof, said pawl being carried by said ledge dependent therefrom.

3. The invention according to claim 2 in which said ledge has a width dimension between lateral faces thereof extending between opposite walls of said aperture, said lateral ledge faces in the vicinity of said pawl being spaced from said opposite walls.

4. The invention according to claim 2 in which the proximal end of said pawl merges into said ledge.

5. The invention according to claim 2 in which said proximal end of said pawl is spaced from said wall.

6. The invention according to claim 1 in which said distal pawl face is in substantially full abutment with the cooperating face of a selected tooth when said strap is passed through said head.

7. The invention according to claim 1 wherein each tooth has locking faces at acute angles to the longitudinal axis of said strap portion and each distal face of said pawl is at substantially the same angle to the axis of said aperture whereby the distal pawl faces and the locking tooth faces, when in locking condition, are in face-toface abutment.

8. The invention according to claim 1 wherein at least one face of the free end of said strap is formed with a roughened grip surface.

Patent Citations
Cited PatentFiling datePublication dateApplicantTitle
US771331 *Apr 29, 1904Oct 4, 1904Jacob L SpectorAdjustable cigar-band.
US3590442 *Jan 7, 1970Jul 6, 1971Thomas & Betts CorpBundling strap
US3605199 *Jan 8, 1970Sep 20, 1971All States Plastic Mfg CoBundle tie
BE518012A * Title not available
Referenced by
Citing PatentFiling datePublication dateApplicantTitle
US3887965 *Sep 4, 1973Jun 10, 1975Fastway FastenersBundling tie
US3925851 *May 20, 1974Dec 16, 1975Bevans Douglas LPlastic hose clamp
US3973292 *Jun 13, 1974Aug 10, 1976Bonnet R Y GCollar
US4011633 *Nov 5, 1975Mar 15, 1977Itw-Ateco G.M.B.H.Cable band
US4021888 *Apr 8, 1976May 10, 1977Itw Fastex Italia, S.P.A.Plastic clamp
US4285102 *Mar 8, 1979Aug 25, 1981Jansen Raymond KDocument clamping devices
US4470173 *Aug 25, 1982Sep 11, 1984Envopak, Ltd.Disposable one-piece security sealing device
US4501049 *Jul 12, 1984Feb 26, 1985Envopak LimitedDisposable one-piece security sealing device
US4837959 *May 15, 1987Jun 13, 1989Celico Joseph M AMarker device
US4872242 *Apr 7, 1988Oct 10, 1989Allan Robert MFlexible C-shaped strap-like connector
US5022126 *Apr 13, 1990Jun 11, 1991Edward Weck IncorporatedOne-piece plastic towel clamp
US5088162 *Jul 16, 1990Feb 18, 1992Allan Robert MConnector apparatus
US5179767 *Nov 12, 1991Jan 19, 1993Allan Robert MConnector apparatus
US5263231 *Feb 18, 1992Nov 23, 1993Sorensen Soren CCable tie with hollow pawl sections
US5345659 *Jan 15, 1993Sep 13, 1994Allan Robert MConnector apparatus with nesting ridges
US5364141 *Mar 8, 1994Nov 15, 1994King F WayneTamper-proof security seal
US5555608 *Apr 19, 1994Sep 17, 1996Allan; Robert M.Connector apparatus with nesting ridges
US5640744 *Sep 14, 1995Jun 24, 1997Allan; Robert M.Nested ridge strap connector apparatus
US8763209Aug 23, 2011Jul 1, 2014The Burton CorporationRatchet buckle and strap assembly
US8978211 *May 3, 2012Mar 17, 2015Ataullah ArjomandUniversal adjustable-length tie-wrap
US20130291343 *May 3, 2012Nov 7, 2013Ataullah ArjomandUniversal adjustable-length tie-wrap
EP0869076A1 *Apr 2, 1998Oct 7, 1998Bowthorpe PlcTie
WO1993003975A1 *Aug 19, 1992Mar 4, 1993Jens Ole SorensenCable tie with hollow pawl sections
Classifications
U.S. Classification24/16.0PB
International ClassificationB65D63/10, B65D63/12
Cooperative ClassificationB65D63/1063
European ClassificationB65D63/10B3P