EP0260257A1 - Dispositif de harnachement a pas serre - Google Patents

Dispositif de harnachement a pas serre

Info

Publication number
EP0260257A1
EP0260257A1 EP19860902109 EP86902109A EP0260257A1 EP 0260257 A1 EP0260257 A1 EP 0260257A1 EP 19860902109 EP19860902109 EP 19860902109 EP 86902109 A EP86902109 A EP 86902109A EP 0260257 A1 EP0260257 A1 EP 0260257A1
Authority
EP
European Patent Office
Prior art keywords
strap
head
rungs
accordance
harnessing
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
Application number
EP19860902109
Other languages
German (de)
English (en)
Inventor
Gordon B. Lankton
Joseph R. Paradis
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Nypro Inc
Original Assignee
Nypro Inc
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Nypro Inc filed Critical Nypro Inc
Publication of EP0260257A1 publication Critical patent/EP0260257A1/fr
Withdrawn legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • B65D63/00—Flexible elongated elements, e.g. straps, for bundling or supporting articles
    • B65D63/10—Non-metallic straps, tapes, or bands; Filamentary elements, e.g. strings, threads or wires; Joints between ends thereof
    • B65D63/1018—Joints produced by application of integral securing members, e.g. buckles, wedges, tongue and slot, locking head and teeth or the like
    • B65D63/1027—Joints produced by application of integral securing members, e.g. buckles, wedges, tongue and slot, locking head and teeth or the like the integral securing member being formed as a female and male locking member, e.g. locking head and locking teeth, or the like
    • B65D63/1063—Joints produced by application of integral securing members, e.g. buckles, wedges, tongue and slot, locking head and teeth or the like the integral securing member being formed as a female and male locking member, e.g. locking head and locking teeth, or the like the female locking member being provided with at least one plastic barb
    • B65D63/1081—Joints produced by application of integral securing members, e.g. buckles, wedges, tongue and slot, locking head and teeth or the like the integral securing member being formed as a female and male locking member, e.g. locking head and locking teeth, or the like the female locking member being provided with at least one plastic barb with barbs situated on opposite sides of, or concentrically in, the female locking member
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • B65D2563/00—Flexible elongated elements, e.g. straps for bundling or supporting atricles
    • B65D2563/10—Non-metallic straps, tapes or bands; Filamentary elements, e.g. strings, threads, wires; Joints between ends thereof
    • B65D2563/101—Details of non-metallic straps, tapes or bands
    • B65D2563/103—Details of non-metallic straps, tapes or bands details of the male locking member, e.g. locking teeth on the strap
    • B65D2563/106—Details of non-metallic straps, tapes or bands details of the male locking member, e.g. locking teeth on the strap formed as a ladder-like structure

Definitions

  • This invention relates to the harnessing of items, and, more particularly, to the precision harnessing of items and prevention of accidental release.
  • Harnessing devices are widely used for the bundling of objects. Such devices are typically formed by a serrated strap fitted to an apertured head containing an internal pawl that engages the serrations of the strap; or by an apertured strap fitted to a buckle-like head, with a tongue that enters the apertures of the strap. Examples are U.S. patents 3,106,028; 3,189,961; 3,457,598 and 3,590,442.
  • Harnessing devices with searrated straps have the disadvantage of being only as secure as their pawls. Attempts have been made to strengthen serrated strap devices but this has resulted in considerable complexity without achieving the desired end result. Similar objections apply to harnessing devices with buckle-like heads. In these devices, a tongue which enters the strap apertures rests against the head of the buckle near its opening and is deflected by the strap. The tongue is typically a cantilever attachment to the buckle-like head, which tends to be undly stiff in the direction of forward thrust during harnessing, and insufficiently stiff in the direction of reverse thrust applied by the strap because of the harnessed item.
  • harnessing device is of the kind shown in U.S. patent 4,766,608 which issued October 23, 1973.
  • This harnessing device is formed by a locking head with an attached ladder strap.
  • the latter is advantageously of stretch-orientable material and is elongated by stretching. This has the effect of increasing the separation of the rungs of the ladder. As a result the strap does not permit minute or close pitch adjustments.
  • the required length of the head and the adjustability of the strap are governed by the distance of separation between adjoining rungs, which can be considerable when the strap has been stretched.
  • a related object is to achieve secure and precision harnessing without the need for employing complex structural configurations.
  • a further object of the invention is to overcome the disadvantages associated with ladder strap harnessing devices, particularly those with stretched straps, while simultaneously retaining their advantages.
  • a related object is to achieve minute, or close pitch adjustments in stretched strap harnessing devices.
  • Another related object is to reduce the required length of head in stretched strap harnessing devices.
  • Another object of the invention is to avoid accidental harness release.
  • a related object is to enhance the security of the members that are used to engage the straps of harnessing devices.
  • Still another object of the invention is to provide ease of harnessing and resistance to spontaneous unharnessing.
  • a related object is to provide a head configuration that facilitates cinching of a harnessing strap, but, at the same time, impedes the tendency of tightly cinched straps to pull away from their heads.
  • a still further object of the invention is to limit the tendency of pawls or tongues of harnessing devices to accumulate excessive stresses at their points of engagement with harnessing straps.
  • Yet another object of the invention is to achieve a locking head and pawl which is particularly suitable for use with stretched straps in which close pitch adjustments are attainable.
  • a related object is to achieve a desirable locking pawl for ladder straps with closely spaced rungs that are contacted by one or more pawls of a locking head.
  • the invention provides a harnessing device with a head having a plurality of longitudinally extending guide channels containing at least one locking tang.
  • the locking tang desirably is confined within the head and mounted for pivotal movement with respect to one of the channels.
  • the internal position of the locking tangs prevent external interferences and thus help prevent accidental release of the harnessed items.
  • a multi-section apertured strap desirably in the form of side-by-side ladder structures, is used to encircle the items to be harnessed.
  • the strap extends from the locking head and is desirably perpendicular with respect to the longitudinal channels.
  • the combination of the locking tangs with the multi-section apertured strap permits harnessing to take place without the objectionable stress concentration often found with other kinds of harnessing devices.
  • the side-by-side sections of the strap are separated from one another by longitudinally extending rails and the edges of the strap are bounded by similar longitudinally extending rails.
  • the apertures of the strap are found between rungs which extend traversely with respect to the edges of the strap and are collinear from one section of the strap to another.
  • the rungs can be non-coilinear, and either be uniformly or non-uniformly distributed along the length of the strap.
  • each locking tang is pivotable within the head and each locking tang has an end which is proportioned to engage the edge of the corresponding aperture in the strap.
  • the end of each locking tang is proportioned to engage a rung.
  • the head can contain a plurality of locking tangs which are positioned in separate channels on the same or opposite sides of the head.
  • FIGURE 1 is a perspective view of a harnessing device having multiple, side-by-side strap sections in accordance with the invention, being used to harness a bundle of items;
  • FIGURE 2 is a perspective view of the head portion of the harnessing device of FIGURE 1 with the upper part broken away to show the internal construction of the head in relation to the side-by-side strap sections;
  • FIGURE 3 is a plan view of a harnessing device in accordance with the invention having an attached, unstretched strap with an overall width exceeding the combined widths of the guide channel in the head;
  • FIGURE 4A is a cross sectional view of a head for a harnessing device in accordance with the invention showing details of an illustrative locking tang;
  • FIGURE 4B is a frontal view of the head of a harnessing device shown in cross section in FIGURE 4A;
  • FIGURE 5A is a cross sectional view of an alternative head for a harnessing device in accordance with the invention showing details of a locking tang and associated structure that are particularly suitable for the practice of the invention;
  • FIGURE 5B is a frontal view of the head of FIGURE 5A illustrating oppositely positioned, multiple pawls in accordance with the invention.
  • FIGURE 6 is a plan view of a segment of the strap of FIGURE 3 after stretching.
  • FIGURE 1 shows a harnessing device 100 in accordance with the invention formed by a locking head 200 with an attached strap 300.
  • the strap 300 is in the form of a ladder structure with separate, sideby-side longitudinal sections 310 and 320.
  • the sections 310 and 320 extend perpendicularly with respect to corresponding guide channels 210 and 220 in the head 200.
  • a group of items 110 When a group of items 110 is to be harnessed, they are encircled by the strap 300 and a tab 330 at the free end of the strap is inserted into and through the guide channels 210 and 220.
  • the strap 300 is drawn through the locking head by applying a forward thrust to it, and internal locking tangs (not shown in FIGURE 1) are deflected in channels 210 and 220. The locking tangs engage successive rungs 312 of section 310 and 322 of section 320 until the items 110 are securely harnessed.
  • the device 100 including the head 200 and the strap 300 is desirably made out of a stretch reorientable elastomeric or plastic such as nylon or polypropylene.
  • the internal structure of the head 200 is shown in FIGURE 2.
  • the channels 210 and 220 also provide guides for the rails 311, 301 and 321 of the strap rungs 312 and 322.
  • Extending into the guide channels 210 and 220 are respective locking tangs 250 and 260 which are pivotally mounted in their respective channels.
  • each of the locking tangs 250 and 260 is in its equilibrium position after having been deflected by the forward motion of repsective rungs 312 and 322.
  • the items 110 FIGURE 1
  • the bundled items apply a reverse thrust through rungs 312 and 322 against tangs 250 and 260.
  • FIGURE 3 A plan view of a harnessing device with an oversized strap 300 before stretching is shown in FIGURE 3.
  • This kind of strap is formed when the harnessing device is fabricated of a stretch-reorientable material, such as nylon, and the strap is thereafter stretched to produce the desired ladder configuration below the head shown in FIGURE 4B.
  • the strap 300 of FIGURE 3 can be used without being pre-stretched when the harnessing device is fabricated of a stretchable elastomeric material.
  • the strap become stretched over the items being harnessed by the forward thrust applied by the user.
  • the harnessed items exert a reverse thrust, there is resistance to that thrust by virtue of the locking tangs 250 and 260, but there is additional resistance to the reverse thrust by virtue of the contact of the side rails with the guide channels 210 and 220.
  • the rungs In the case of the strap 300 in FIGURE 3 the rungs
  • the strap 300 had a width of about 0.24 inches, with the first section 310 having a rung width of 0.66 inches and a similar rung width for the second section 320. It will be appreciated that the sections 310 and 320 may have unequal widths. In any event the interval of the rungs between the side rails 311 and 321 is on the order of 0.17 inches which would normally require a relatively wide separation of the successive rungs. In the case of the invention, however, the use of the intermediate reinforcement 301 permits successive rungs 312 and 322 to be separated, from center to center, on the order of 0.03 inches, with each rung having a representative diameter on the order of 0.025 inches.
  • the overall width of the strap 200' as shown in FIGURE 4B is reduced to 0.184 inches.
  • the reinforcement and side rails 311, 301 and 321 are reduced from a width of about 0.036 inches to 0.024 inches. There is also a corresponding reduction in height from about 0.048 inches to about 0.032 inches.
  • stretching produces a reduction in the width of the apertures 313 and 323 as well as an increase in aperture length.
  • there was a small reduction in run diameters from about 0.0245 inches to about 0.0235 inches.
  • the pawl 260 is shown with an end 261 that is proportioned to engage the upper inner wall of the head 200.
  • the crucial determinent on the pitch of the adjoining rungs is the presence of the intermediate reinforcement rail 301 which allows a close pitch without the occurrence of sag in the rungs which would interfere with the secure engagement of the pawl 360 with the rungs 312.
  • FIGURE 4B A frontal view of the head 200 showing the relative positions of the pawls 250 and 260 is shown in FIGURE 4B. As indicated both pawls 250 and 260 are on the same side of the head, which can be significantly reduced in the strap direction because of the relatively close pitch of the rungs provided by the invention. In the specific embodiment of FIGURE 4B, the pawls 250 and 260 are rooted in that portion of the head adjoining the connection of the strap 300. It will be appreciated that the pawls 250 and 260 may be rooted on the opposite side of the head as well.
  • FIGURE 5A The pawl construction that is particularly suitable for the practice of the invention is shown in FIGURE 5A.
  • the head 200' of FIGURE 5A is attached to the strap 300 by a tab 340 which, in its unstretched form, is approximately the same thickness as the diameter of each rung 321 or 322 of the strap 300.
  • the alternative head 200' contains a pair of pawls 250' and 260' of which only one of the pawls 250' is visible in FIGURE 5A.
  • the other pawl 260' is reversed in orientation.
  • the specific relationship between the pawls 250' and 260' is more apparent from the frontal view of FIGURE 5B.
  • the head 200' includes a lower ledge 211 in the channel 210 associated with the pawl 250'
  • the channel 210 includes an upper ledge 212.
  • both the ledges 211 and 212 have tapered and rounded entry portions 211e and 212e to facilitate the insertion of the strap 300 into the head 200'.
  • the pawl 250' extends from a pedestal 251 to a neck 252 and then to a tang 253 which is proportioned to facilitate the deflection of the pawl 250' as the strap 300 is inserted into the head and then to facilitate locking engagement of the pawl 250' between adjoining rungs 311.
  • the pawl 250' has an enlarged lower section 254 and a tip 255.
  • the pawl 250' When reverse thrust is applied to the strap 300 in the direction of the arrow R. in FIGURE 5A, for example as a result of the weight of the items harnessed by the bundling strap, the pawl 250' is pivoted in the direction indicated by the arrow P about the pivot point 256 until the tip 255 becomes engaged in the notch 213 of the head tooth 214.
  • the lower portion of the engagement surface 254e of the shank 254 has a different curvature than the opposite surface 254f.
  • the knee of the surface 254f lies at the intersection of of line parallel to the outer surfaces of the neck 252 and a perpendicular to the axis of insertion A.
  • the engagement surface 254e is desirably in the form of a ramp that extends from the pivot position 256 to the first point of contact with a rung 311.
  • the tip 255 is at an acute angle of elevation with respect to the axis A of insertion in order to achieve abutting contact with the adjoining notch surface 215 of the head 200' after reverse thrust has been applied and the pawl has been pivoted in a counterclockwise direction as indicated by the arrow P.
  • FIGURE 5B A frontal view of the head 200' is shown in FIGURE 5B, viewing the head in the direction of the reverse thrust arrow R of FIGURE 5A.
  • a vertical ledge 216 is located below the pivot point 256 such that there is, in addition to the counterclockwise rotation of the pawl, deformation of the neck 252 in order to enhance the secure locking of the strap in the harnessing position.
  • the double lines shown for the tip 255 as well as the respective lower and upper channel edges 215 and 219 indicate tapering to facilitate withdrawal of the mold parts during formation of the head 200'
  • FIGURE 5B Also indicated in FIGURE 5B is the converse position of the second pawl 260' relative to the first pawl 250'.
  • the first pawl 250' extends upwardly from the lower channel surface 218, while the second pawl 260' depends downwardly from ah upper channel wall 218' that is symmetrically disposed about axes X and Y in FIGURE 5B. It will be understood that although the pawls 250' and 260' of FIGURE 5B have their tips 255 and 255' in lateral alignment so that they engage corresponding rungs on adjoining sections 310 and 320 of the strap 300, they may be longifudinally separated within the head to engage nonaligned rungs for straps with nonaligned or aligned sections.
  • FIGURE 6 An illustrative fragment of the strap 300 after stretching is shown in FIGURE 6.
  • the rungs 312 are proportioned relative to the rails 311, 301 and 321 so that stretching not only produces a reduced cress section of the rails but also of the rungs.
  • the consequence, as illustrated in FIGURE. 6, is that the junction of each rung 312 with one of the rails 311, 301, or 321 is to produce a fillet 312f.
  • the use of the reinforcement rail 301 permits the use of individual rungs 312 which have smaller diameters than would be required in the absence of the reinforcement rail 301.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Clamps And Clips (AREA)
  • Supports For Pipes And Cables (AREA)

Abstract

Le dispositif de harnachement (100) ci-décrit est formé d'une tête de verrouillage (200) et d'une sangle à section multiple ajourée et attachée (300). La tête (200) contient une pluralité de canaux longitudinaux de guidage (210, 220) recevant des sections longitudinales jointes l'une à l'autre (310, 320) de la sangle (300) après avoir encerclé les articles (110) à harnacher. La tête (200) contient également une pluralité de languettes internes déformables de verrouillage (250, 260), une pour chaque section de la sangle (300).
EP19860902109 1986-03-03 1986-03-03 Dispositif de harnachement a pas serre Withdrawn EP0260257A1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/US1986/000446 WO1987005277A1 (fr) 1986-03-03 1986-03-03 Dispositif de harnachement a pas serre

Publications (1)

Publication Number Publication Date
EP0260257A1 true EP0260257A1 (fr) 1988-03-23

Family

ID=22195401

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19860902109 Withdrawn EP0260257A1 (fr) 1986-03-03 1986-03-03 Dispositif de harnachement a pas serre

Country Status (2)

Country Link
EP (1) EP0260257A1 (fr)
WO (1) WO1987005277A1 (fr)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0742159A1 (fr) * 1995-05-11 1996-11-13 Kun Sheng Chang Dispositif de courroie de cerclage
US6543261B2 (en) * 2001-07-13 2003-04-08 B&G Plastics, Inc. Article identification and security tag

Family Cites Families (17)

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Publication number Priority date Publication date Assignee Title
US1871064A (en) * 1930-12-20 1932-08-09 Allen F Kipper Locking device
US2904294A (en) * 1957-02-11 1959-09-15 Northrop Corp Clamp device
US3106028A (en) * 1960-05-26 1963-10-08 John G Baumgartner Identification band
US3189961A (en) * 1963-09-17 1965-06-22 Rotron Mfg Co Hose clamp
DE1575150B2 (de) * 1967-03-08 1971-06-16 Paul Hellermann Gmbh, 2080 Pinneberg Kabelbindevorrichtung
US3457598A (en) * 1968-08-09 1969-07-29 Thomas & Betts Corp Self-clinching bundling strap
US3590442A (en) * 1970-01-07 1971-07-06 Thomas & Betts Corp Bundling strap
US3721750A (en) * 1970-01-27 1973-03-20 Ty Lok Assembly Systems Inc Strapping fastener
FR2102595A5 (fr) * 1970-08-11 1972-04-07 Schmitt Walter
US3816878A (en) * 1971-11-10 1974-06-18 Panduit Corp Cable tie
US3766608A (en) * 1972-06-09 1973-10-23 Dennison Mfg Co Harnessing device
US4001898A (en) * 1975-10-06 1977-01-11 Panduit Corporation Fixed dog ladder strap
US3991444A (en) * 1976-02-18 1976-11-16 Panduit Corporation Releasable cable tie
US4045843A (en) * 1976-09-01 1977-09-06 Amp Incorporated Bundle tie devices and material
US4137606A (en) * 1977-05-27 1979-02-06 Dennison Manufacturing Company Webbed harnessing device
GB2063354A (en) * 1979-11-08 1981-06-03 Schmidt P O Strap fastener
US4347648A (en) * 1980-05-12 1982-09-07 Dennison Manufacturing Company Ladder strap harnessing device with webbed tail

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See references of WO8705277A1 *

Also Published As

Publication number Publication date
WO1987005277A1 (fr) 1987-09-11

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Inventor name: LANKTON, GORDON, B.

Inventor name: PARADIS, JOSEPH, R.