US3538553A - Buckle with strap tightening lever - Google Patents

Buckle with strap tightening lever Download PDF

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Publication number
US3538553A
US3538553A US770192A US3538553DA US3538553A US 3538553 A US3538553 A US 3538553A US 770192 A US770192 A US 770192A US 3538553D A US3538553D A US 3538553DA US 3538553 A US3538553 A US 3538553A
Authority
US
United States
Prior art keywords
strap
buckle
bar
thickness
lever
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.)
Expired - Lifetime
Application number
US770192A
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English (en)
Inventor
Henry J Brucker
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.)
Kinedyne LLC
Howmet Aerospace Inc
Original Assignee
Aluminum Company of America
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 Aluminum Company of America filed Critical Aluminum Company of America
Application granted granted Critical
Publication of US3538553A publication Critical patent/US3538553A/en
Assigned to KINEDYNE CORPORATION reassignment KINEDYNE CORPORATION ASSIGNMENT OF ASSIGNORS INTEREST. Assignors: AMERICAN ALUMINUM COMPANY
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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
    • B65D63/14—Joints produced by application of separate securing members
    • B65D63/16—Joints using buckles, wedges, or like locking members attached to the end of the element
    • A—HUMAN NECESSITIES
    • A44—HABERDASHERY; JEWELLERY
    • A44B—BUTTONS, PINS, BUCKLES, SLIDE FASTENERS, OR THE LIKE
    • A44B11/00—Buckles; Similar fasteners for interconnecting straps or the like, e.g. for safety belts
    • A44B11/02—Buckles; Similar fasteners for interconnecting straps or the like, e.g. for safety belts frictionally engaging surface of straps
    • A44B11/06—Buckles; Similar fasteners for interconnecting straps or the like, e.g. for safety belts frictionally engaging surface of straps with clamping devices
    • A44B11/12—Buckles; Similar fasteners for interconnecting straps or the like, e.g. for safety belts frictionally engaging surface of straps with clamping devices turnable clamp
    • A44B11/125—Buckles; Similar fasteners for interconnecting straps or the like, e.g. for safety belts frictionally engaging surface of straps with clamping devices turnable clamp with strap tightening means
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B64—AIRCRAFT; AVIATION; COSMONAUTICS
    • B64D—EQUIPMENT FOR FITTING IN OR TO AIRCRAFT; FLIGHT SUITS; PARACHUTES; ARRANGEMENT OR MOUNTING OF POWER PLANTS OR PROPULSION TRANSMISSIONS IN AIRCRAFT
    • B64D25/00—Emergency apparatus or devices, not otherwise provided for
    • B64D25/02—Supports or holding means for living bodies
    • B64D25/06—Harnessing
    • 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
    • B65D63/02—Metallic straps, tapes, or bands; Joints between ends thereof
    • B65D63/06—Joints produced by application of separate securing members, e.g. by deformation thereof
    • B65D63/08—Joints using buckles, wedges, or like locking members attached to the ends of the elements
    • Y—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
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T24/00—Buckles, buttons, clasps, etc.
    • Y10T24/21—Strap tighteners
    • Y10T24/2192—Buckle type

Definitions

  • a buckle includes a sheet metal body section which has an apertured plate for connection to one end of a strap and also has projecting therefrom two spaced side arms ou and between which are pivotally mounted intermediate their ends the two side walls of a sheet metal strap tightening lever, which are connected together at one end by a handle plate and at the other end by a strap tensioning bar and a strap guide bar spaced apart to guide a strap between said bars and around the edge of one bar that faces oppositely from one edge of the other bar. Said bars are also closely spaced apart longitudinally of said walls and each is formed of one thickness of metal integral with and folded onto another thickness, and the folded thickness of the tensioning bar is interlocked at its ends with said side walls.
  • the invention relates to buckles having strap tightening levers which are particularly intended for use with tiedown straps or cargo security equipment, but which have general utility.
  • Such buckles comprise two sections pivotally connected together, one to be connected to, for example, one end of a strap, and the other section having cross bars related to each other and to the pivotal connection of the sections so that when the other end of the strap is threaded beween and over said cross bars, pivotal movement of the Secondmentioned section will cause a tightening of the strap.
  • the prior art buckles or strap or belt tightening gear either are too large or complicated or too ex-pensive in re lation to the degree of tension provided, or the degree of tension provided is so small -that the use of the buckle is limited to a relatively small area, or the design of the buckle is such that the buckle bends or warps under the average required tension so as to be practically useless.
  • An object of the present invention is to provide a buckle lin which the body section and the lever section are constructed and combined so that the buckle is capable of producing a degree of tension which is large in proportion to the small size, simplicity and low cost of the buckle.
  • the invention particularly contemplates a sheet metal buckle the construction of which enables the buckle to produce a large degree of tension is a strap with a minimum of danger of bending, twisting or warping of the sheet metal buckle sections and with minimum eort by the operator.
  • the invention provides a lever section having a handle plate and side walls pivotally connected intermediate their ends to the body section and connected adjacent one end by a strap tensioning bar and a strap ⁇ guide bar each of which comprises a thickness of metal integral with and folded tightly upon another thickness and wherein the second-mentioned thickness of at least the strap tensioning bar is interlocked at its ends with said side walls so that bending or twisting of the section is reduced to the minimum.
  • FIG. 1 is a top .plan View of a buckle embodying the invention with the body section and the lever section in the relative positions that are assumed when the sections are in strap tensioning position;
  • FIG. 2 is a side elevational view thereof
  • FIG. 3 is a transverse vertical sectional view on the plane of the line 3 3 of FIG. l;
  • FIG. 3a is a greatly enlarged fragmentary vertical sectional view on the plane of the line 3-3a of FIG. l;
  • FIG. 4 is a view similar to FIG. 3 on the plane of the line 4-4 of FIG. 1;
  • FIG. 5 is a fragmentary side elevational of a portion of one of the side walls of the lever section
  • FIG. 6 is a plan view of the flat sheet metal blank from which the body section is formed
  • FIG. 7 is a similar view of a blank of which the lever Sectio-n is made.
  • FIG. 7a is a sectional view approximately on the plane of the line 7-7a of FIG. 7, and
  • FIG. 7b is a fragmentary plan view of the side of the blank oposite that shown in FIG. 7.
  • FIG. 8 is a plan view of a modified at sheet metal blank from which the body section is formed
  • FIG. 9 is an enlarged longitudinal sectional view of the buckle with a strap attached thereto and in released position around cartons, the strap and cartons being shown in elevation, and
  • FIG. 10 is a similar view with the buckle Shown in straptightening and clamping position.
  • the buckle includes a sheet metal body section A which has a plate 1 formed with an aperture for connection to one end of a strap and has projecting therefrom two spaced and parallel side arms 3 between which are pivotally mounted by rivets 4 the two side walls 5 of a strap-tightening lever section B, which are connected together at one end by a handle plate 6 and at the other end by a strap-tensioning bary 7 and a strap guide bar 8.
  • the strap tightening lever section B is formed of a single sheet of metal which, in the forming of the section is bent along the dot and dash lines x to form the two side walls 5, and these two Walls have openings 9 through which pass the rivets 4.
  • the blank is also folded or bent along the dot and dash lines y to form the strap guide bar 8 which thus comprises on thickness of metal integral with and folded onto another thickness.
  • the strap-tensioning bar 7 is formed by bending or folding the blank along the dot and dash line z so that said bar also comprises one thickness of metal 7a integral with and tightly folded onto another thickness.
  • the two bars 7 and 8 are disposed at the side of the axis of the pivotal rivets 4 opposite the handle plate ⁇ 6.
  • the fold 11 of the bar 7 forms the outer edge of the bar and faces in the opposite direction from the fold 12 of the bar 8 to form smooth rounded surfaces for the strap C when the latter is threaded through the strap tightening lever.
  • the folded thickness 7a of the strap-tensioning bar 7 is interlocked with the side walls 5, and as best shown in FIGS. 7a and 7b the ends of said folded thickness are provided with lugs 13.
  • the blank has sockets 14 into which said lugs are pressed and rrnly seated when said folded thickness of the bar is folded along the line z onto the other thickness and the blank is folded along the lines x to locate the side walls in spaced and parallel relation to each other and perpendicular to the plane of the handle plate 6.
  • the ends of the folded thickness 15 may be beveled as indicated at 16 (FIG. 8) so that they bite into the side walls 5 as the latter are folded and bent into their normal spaced and parallel relation approximately perpendicular to the plane of the handle plate 6.
  • one end of the strap C is connected to the strap-attaching plate 1 as indicated at 17 in FIG. 9 and the two sections A and B are swung into acute angular relation to each other with the handle plate overlying the strap-attaching plate as shown in FIG. 9.
  • the other end of the strap is threaded upwardly around the strap guide bar 8, thence between the bars 8 and 7 and beneath the strap-tensioning bar 7 as shown in FIG. 9, whereupon the free end of the strap is pulled to preliminarily tighten the strap around the load.
  • the handle plate 6 is gripped by the hand of the operator and pulled so as to swing the lever section 8 in the clockwise direction in FIG. 9 so that the strap guide bar 8 has the strap looped around it to hold the strap as the strap-tensioning bar 7 draws the strap taut as shown in FIG. 10.
  • the side arms 3 of the body section and the side walls 5 of the lever section are tapered outwardly from the pivotal ends so as to lie in approvimately a common plane when the sections are in strap-tightening positions shown in FIG. 10.
  • the line of tension on the strap is between the tensioning bar 7 and the axis of the pivot 4 so that the tension tends to hold the sections in strap-tightening position.
  • means is provided for releasably holding the sections in ⁇ this position, and such means is shown as comprising protuberances 20 which are formed on the outer surfaces of the side walls 5 when the sockets 14 are stamped in the blank, and which coact with similar protuberances 21 formed on the inner surfaces of the side arms 3.
  • the buckle may be used in many other ways, for example, in tie-down equipment where two straps are used, one having one end connected to a structure and the other end connected to the body section A of the buckle, and the other strap having one end connected to a structure and the other end threaded through the llever section B of the buckle.
  • An important feature of the construction is the interlocking of the folded thickness 7a of the strap-tensioning bar with the side walls 5 of the lever sections.
  • This construction provides unexpected great strength in the bar 7 and the adjacent portions of the side walls so that the tendency toward bending or twisting of the bar or lever section during the strap-tightening operations, is reduced to the minimum.
  • the location of the bars 7 and 8 at the side of the pivotal axis opposite the handle plate provides for highly desirable leverage which permits the buckle to produce a large degree of tension in the strap with a minimum danger of bending, twisting or warping of the buckle sections and with the expenditure of only a minimum of effort or energy by the operator.
  • a buckle comprising a sheet metal body section having an apertured strap attaching plate and two side arms projecting therefrom in spaced relation to each other, a strap-tightening lever between said side arms formed of a sheet of metal and having a handle plate at one end of the lever and two side walls projecting therefrom and pivotally connected intermediate their ends t0 said side arms, a strap-tensioning bar connecting4 said side walls at the other end of said lever, and a Strapguide bar connecting said side walls between said straptensioning bar and the pivotal axis of said sections, said pivotal axis being nearer to the second-mentioned end than to the first-mentioned end of the lever, both said bars being disposed at the same side of said pivotal axis, said strap-tensing bar and said strap guide bar being also spaced apart both longitudinally of said strap-tightening lever and transversely of the general plane of said lever, providing for the threading of a strap over said guide bar and between said bars and then over the outer edge of said strap-
  • said straptensioning bar comprises a thickness of said sheet of metal integral with and folded tightly upon another thickness and wherein the lirst-mentioned thickness is interlocked with the adjacent side wall of the lever section.
  • each side wall has a socket and each end of the first-mentioned thickness of the strap-tensioning bar has a lug seated in said socket of the adjacent side wall.
  • each side wall has a socket and each end of the first-mentioned thickness of the strap-tensioning bar has a lug and said side walls have been bent from said sheet of metal into spaced parallel relation to each other and into abutment with the corresponding ends of the rst-mentioned thickness of the strap-tensioning bar with one of said lugs seated in the corresponding socket.
  • each end of the first-mentioned thickness of the strap-tensioning bar is beveled and said side walls have been bent from said sheet of metal into spaced and parallel relation t0 each other with the corresponding end of said rstmentioned thickness tightly abutting and indented into said side wall.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Business, Economics & Management (AREA)
  • Emergency Management (AREA)
  • Aviation & Aerospace Engineering (AREA)
  • Buckles (AREA)
  • Package Frames And Binding Bands (AREA)
US770192A 1968-10-24 1968-10-24 Buckle with strap tightening lever Expired - Lifetime US3538553A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US77019268A 1968-10-24 1968-10-24

Publications (1)

Publication Number Publication Date
US3538553A true US3538553A (en) 1970-11-10

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ID=25087758

Family Applications (1)

Application Number Title Priority Date Filing Date
US770192A Expired - Lifetime US3538553A (en) 1968-10-24 1968-10-24 Buckle with strap tightening lever

Country Status (4)

Country Link
US (1) US3538553A (fr)
FR (1) FR2021474A1 (fr)
GB (1) GB1252789A (fr)
NL (1) NL6915807A (fr)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4564981A (en) * 1984-06-25 1986-01-21 Ancra Corporation Buckle-strap tiedown assembly
US4610055A (en) * 1984-06-25 1986-09-09 Ancra Corporation Buckle tiedown assembly
US20060005359A1 (en) * 2004-07-12 2006-01-12 Vincent Chang Connector device for suspending straps
US20110139290A1 (en) * 2008-06-06 2011-06-16 Graham Norman Duell Duct system componentry
US20140325796A1 (en) * 2013-05-06 2014-11-06 Panduit Corp. Extended Support Clip for a Metal Locking Tie

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4102018A (en) * 1976-12-21 1978-07-25 Ryusyo Industrial Co., Ltd. Clasping device
DE8329307U1 (de) * 1983-10-11 1984-03-15 Itw-Ateco Gmbh, 2000 Norderstedt Vorrichtung zum spannen von gurten oder dergleichen

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1847785A (en) * 1932-03-01 of cleveland
US2825109A (en) * 1956-10-09 1958-03-04 Averd G Nelson Buckle

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1847785A (en) * 1932-03-01 of cleveland
US2825109A (en) * 1956-10-09 1958-03-04 Averd G Nelson Buckle

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4564981A (en) * 1984-06-25 1986-01-21 Ancra Corporation Buckle-strap tiedown assembly
EP0169669A2 (fr) * 1984-06-25 1986-01-29 Ancra Corporation Boucle
US4610055A (en) * 1984-06-25 1986-09-09 Ancra Corporation Buckle tiedown assembly
EP0169669A3 (en) * 1984-06-25 1986-12-17 Ancra Corporation Buckle assembly
US20060005359A1 (en) * 2004-07-12 2006-01-12 Vincent Chang Connector device for suspending straps
US20110139290A1 (en) * 2008-06-06 2011-06-16 Graham Norman Duell Duct system componentry
US20140325796A1 (en) * 2013-05-06 2014-11-06 Panduit Corp. Extended Support Clip for a Metal Locking Tie
US9457942B2 (en) * 2013-05-06 2016-10-04 Panduit Corp. Extended support clip for a metal locking tie
US20170008680A1 (en) * 2013-05-06 2017-01-12 Panduit Corp. Extended Support Clip for a Metal Locking Tie
US9783350B2 (en) * 2013-05-06 2017-10-10 Panduit Corp. Extended support clip for a metal locking tie

Also Published As

Publication number Publication date
FR2021474A1 (fr) 1970-07-24
NL6915807A (fr) 1970-04-28
DE1952559A1 (de) 1970-11-12
GB1252789A (fr) 1971-11-10

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