WO1994019254A1 - Dispositif d'agrafage - Google Patents

Dispositif d'agrafage Download PDF

Info

Publication number
WO1994019254A1
WO1994019254A1 PCT/FI1994/000065 FI9400065W WO9419254A1 WO 1994019254 A1 WO1994019254 A1 WO 1994019254A1 FI 9400065 W FI9400065 W FI 9400065W WO 9419254 A1 WO9419254 A1 WO 9419254A1
Authority
WO
WIPO (PCT)
Prior art keywords
load belt
sheet metal
accordance
clasp
load
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.)
Ceased
Application number
PCT/FI1994/000065
Other languages
English (en)
Inventor
Erkki Vaara
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Publication of WO1994019254A1 publication Critical patent/WO1994019254A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

Classifications

    • 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
    • A44B11/04—Buckles; Similar fasteners for interconnecting straps or the like, e.g. for safety belts frictionally engaging surface of straps without movable parts
    • 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

Definitions

  • the object of the invention is a load belt clasp for locking the two ends of a load belt to one another, which includes a loop bar on both sides and in the centre of the direction of pull of this or in the region of it a bending edge of a counter bar, ion which case the end of the load belt can be brought over the bending edge from the opposite side of the loop bar and further threaded round the loop bar and finally round the bending edge back to the direction of pull, when part of the load belt remains between the incoming load belt and the bending edge, thus creating a friction lock of the tensioned load belt.
  • a load belt clasp of the type referred to in the introduction is presented in Swedish patent publication number 450621.
  • a self- locking load belt clasp is generally created by arranging a suitable loop bar through an opening formed in the clasp in such a way that a loop of the load belt turned round the loop bar must make a sharp bend, when a friction-locked joint is automatically formed.
  • the tensile strength of one typical load belt is 1800 kiloponds, but the improved model from the holder of the above patent withstands only 1300 kiloponds.
  • the problem is mainly shearing in the belt, which is in part influenced by deformation under tension due to the construction of the load belt clasp, which in turn create an uneven loading in the cross-section of the belt.
  • Load belt clasps consisting of two separate plates are presented in patent publications US 3,121,270 and DE-B-1557 535.
  • the straight sheet metal components bend under heavy loads nor is the tensile strength of the load belt properly exploited.
  • the intention of this invention is to create a new kind of load belt clasp, by means of which the tensile strength of the load belt can be exploited more fully.
  • the characteristic features of a load belt clasp in accordance with the invention are presented in the accompanying Patent Claims.
  • the load belt clasp is advantageously formed of two similar essentially rectangular sheet metal pieces, both ends of which can act as either a loop bar or counter bar, depending on the direction of the threading of the load belt.
  • Figure l shows the load belt clasp in partial cross- section and the threading of the load belt through it.
  • Figure 2 shows the load belt clasp in an axonometric view.
  • Figure 3 shows the construction of the load belt clasp in detail as a partial enlargement.
  • the load belt clasp 1 is constructed of two pieces 6 of sheet metal, in both of which there is an opening in the centre and which are attached to one another by means of attachment 7, which is advantageously spot welding.
  • the sheet metal components 6 include loop bar 2 and counter bar 2' as operational parts, the edge of which towards the centre forms bending edge 3. On account of their symmetrical construction these components can change places, if the threading of the load belt takes place from the other side.
  • the sheet metal components 6 include a flexible bend 8 near to the attachment point and stiffening bend 9 in the loop bar 2 and the counter bar 2* , Figures 1 and 2.
  • the sheet metal pieces can part in a V-shape, i.e. the profile of the piece would be X-shaped.
  • the stiffening bend 9 is practical ⁇ ly essential, because in order to create a spring-effect the thickness of the sheet cannot be increased, but additional stiffness is required in the ends.
  • Figure 3 shows a partial enlargement of the load belt, in which the depression in the one sheet metal component 6 left by the spot welding used as an attachment 7 is drawn.
  • the Figure also clearly shows how the loop bar 2 and the counter bar 2• leave a gap between them, which closes due to tension thus squeezing the load belt into place. This flexing of the loop and counter bars 2 and 2' can be controlled by shaping the spring bend 8.
  • the loading values can be improved by using boric steel.
  • the spring-like arm is formed of the part at the side of the opening, which extends from the attachment point to the bar.
  • inventive concept can be applied to a one-sided attachment too for securing a single load belt end, even though applications of this type are not known at present.
  • load belt clasps include pain ⁇ ting or plastic coating, which rounds the corners.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Clamps And Clips (AREA)

Abstract

L'invention porte sur une agrafe (1) pour courroies de levage (4) permettant de fixer l'une à l'autre les deux extrémités d'une telle courroie (4) et qui comporte à chacune de ses extrémités une bride de bouclage (2) et, dans l'axe du sens de traction ou à proximité, un bord de recourbement (3) d'une contre-bride (2'). L'agrafe (1) se compose essentiellement de deux éléments en tôle (6) fixés ensemble, présentant tous deux une ouverture centrale et dont l'un au moins forme des brides de bouclage (2) qui bordent l'ouverture, et l'autre au moins, des contre-brides (2') dont les bords de recourbement (3) bordent l'ouverture.
PCT/FI1994/000065 1993-02-17 1994-02-16 Dispositif d'agrafage Ceased WO1994019254A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FI930688A FI92794C (fi) 1993-02-17 1993-02-17 Kuormavyölukko
FI930688 1993-02-17

Publications (1)

Publication Number Publication Date
WO1994019254A1 true WO1994019254A1 (fr) 1994-09-01

Family

ID=8537400

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/FI1994/000065 Ceased WO1994019254A1 (fr) 1993-02-17 1994-02-16 Dispositif d'agrafage

Country Status (2)

Country Link
FI (1) FI92794C (fr)
WO (1) WO1994019254A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1999018004A1 (fr) * 1997-10-08 1999-04-15 Europa Packaging Company Limited Boucle

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH475138A (fr) * 1966-10-14 1969-07-15 Forsch Anstalt Fur Mechanik Dispositif pour relier les extrémités d'un lien par coincement
AU6804181A (en) * 1980-03-04 1981-09-10 Gerrard Strapping Systems Pty. Ltd. Buckle
SE450621B (sv) * 1985-11-27 1987-07-13 Linvent Ab Anordning vid ett for dragorgan avsett feste

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH475138A (fr) * 1966-10-14 1969-07-15 Forsch Anstalt Fur Mechanik Dispositif pour relier les extrémités d'un lien par coincement
AU6804181A (en) * 1980-03-04 1981-09-10 Gerrard Strapping Systems Pty. Ltd. Buckle
SE450621B (sv) * 1985-11-27 1987-07-13 Linvent Ab Anordning vid ett for dragorgan avsett feste

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1999018004A1 (fr) * 1997-10-08 1999-04-15 Europa Packaging Company Limited Boucle
AU733506B2 (en) * 1997-10-08 2001-05-17 Europa Packaging Company Limited Buckle
US6553632B1 (en) 1997-10-08 2003-04-29 Europa Packaging Company Limited Buckle

Also Published As

Publication number Publication date
FI92794C (fi) 1995-01-10
FI930688A0 (fi) 1993-02-17
FI92794B (fi) 1994-09-30

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