EP0336020A1 - Bandschweissapparat - Google Patents
Bandschweissapparat Download PDFInfo
- Publication number
- EP0336020A1 EP0336020A1 EP88200662A EP88200662A EP0336020A1 EP 0336020 A1 EP0336020 A1 EP 0336020A1 EP 88200662 A EP88200662 A EP 88200662A EP 88200662 A EP88200662 A EP 88200662A EP 0336020 A1 EP0336020 A1 EP 0336020A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- band
- seal
- portions
- plate
- crimping
- 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- Withdrawn
Links
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65B—MACHINES, APPARATUS OR DEVICES FOR, OR METHODS OF, PACKAGING ARTICLES OR MATERIALS; UNPACKING
- B65B13/00—Bundling articles
- B65B13/18—Details of, or auxiliary devices used in, bundling machines or bundling tools
- B65B13/24—Securing ends of binding material
- B65B13/34—Securing ends of binding material by applying separate securing members, e.g. deformable clips
- B65B13/345—Hand tools
-
- 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
Definitions
- This invention relates to an apparatus for securing overlapping end portions of a band loop and in particular an apparatus in which the securing is done with a friction seal formed around a portion of the band.
- Such units first tighten the band and then make a sealed joint at the overlapping end portions of the band.
- the two basic functions, tension of band and sealing, can be incorporated in a single apparatus or they can be performed by separate devices.
- the latter are usually in the form of portable tools.
- the tensioning has been done by methods including a ratchet bar, rotating toothed wheel, rotatable clamp as well as other less known systems both manual and power driven.
- the sealing has been performed by metallic and non metallic seals, that are crimped around the bands, slitting and interlocking the band end portions and, in the case of non metallic band, by heating the band portion for fusion welding.
- the present invention provides an improvement in the apparatus for crimping a seal around a portion of the overlapping ends of a band and the shape of the seal used with such an apparatus.
- Seals are normally prefolded in some manner to form a flat upper portion that is somewhat wider than the band with extending portion on either side that are folded tightly around the two end portions of the band.
- the under side of the seal that comes in contact with the band portions is treated or scored.
- seals can be stacked in a manner that allows the end of the extended portions to overlap the portion near the bend.
- the overlapping method of stacking allows more seals to be placed in a given space within the tool. This space is provided by a means generally known as a seal magazine.
- the seal magazine associated with portable tools needs to be kept to a minimum size due to space and balance limitations on such portable tools. This in turn means there will be a limited quantity of bands that can be placed around articles before the seal magazine will have to be replenished.
- the band does not have to be exactly in alignment with the center of the seal, when advancing the band between the extended portions, or when positioning the seal over the ends of the band.
- each seal By presetting the extensions at 15° each seal will fully nest to provide the maximum seals in a given space.
- An object of the present invention is to provide an improvement in the securing of the overlapping portions of a band placed about an article.
- Another object of the invention is to provide an improvement in the crimping means of a band seal.
- Another object of the invention is to provide the crimping means without the use of pivotal or rotating jaws.
- Yet another object of the invention is to provide a band seal configuration that will function smoothly in such a crimping means.
- the present invention provides a trouble free and less expensive means of crimping, and a seal with preset extension to function smoothly in such means.
- the jaw used to fold the extension portions around the under side of the band is stationary within the portable tool.
- the surface of the jaw is shaped to allow the extension to contact a slope or radius on the jaw and then be forced inwardly due to a force applied to the upper portion of the seal.
- This force can be nothing more than a ram operated by a cam handle means. Having the extensions at 90° would of course require less force by the ram but this would defeat the stacking advantage.
- the simplicity of the jaw and ram is lost when the extensions are preset at less than 70°, therefore the present invention limits the seal configuration to having the extension portions of equal length, and each extension portion preset between 70° and 80° from the plane of the upper portion.
- FIGURE 1 one form of a combination strapping tool, 11, is shown resting to the top of a package, 12, that is to be held closed by a band, 13.
- One end, 14, of the band, 13, has been placed in the tool, 11, and retained by a gripping jaw, 15.
- the band, 13, is made into a loop, 16, around the package, 12, and slipped into the tool, 11, to lay over the bottom plate, 17, and overlap the end portion, 14.
- the band, 13, is also inserted into a slot, 18, in the tensioning wheel, 19.
- a hand lever, 20, is operated in a ratchet like motion to rotate the wheel, 19, in a counter clockwise direction.
- the excess band, 13, would be wound around the wheel, 19, until the loop, 16, is drawn tightly about the package, 12.
- the tool, 11, having completed the tensioning function will be shifted to a means for securing the overlapping portions of the band, 13, with a sealing element, 21, while at the same time continue to retain the tension in the loop, 16.
- the method of shifting to the securing means can be done by the operator manually or done automatically within the tool. There could also be a second lever for operating the securing means completely independent of the tensioning means.
- a seal magazine, 22, is mounted on the tool, 11, to locate the stack, 23, of seals, 21, above the overlapping portions of the band, 13.
- a transfer device, 24, is actuated to slide the leading seal, 25, in the lengthwise direction of the band, 13, from the seal stack, 23.
- the seal, 25, is slid into the seal crimping means, 26, underneath a ram portion, 27, of the crimping means, 26, and the next seal, 28, moves into position to be ready for the next loop.
- the crimping means, 26, will move the ram, 27, and seal, 25, downward over the overlapping portions of the band, 13, and clamp the seal, 25, tightly therearound as will be described later in detail.
- the tool, 11, as described is but one of many embodiments placing and tensioning a band around a package.
- the power means could be motor driven or various assortment of toothed gears and air components.
- the scope of the present invention is within the means of clamping a seal around the overlapping portions of a band and not limited to the type or style of tool upon which it is used.
- FIG. 2 and 6 show the seal stack, 23, within the seal magazine, 22, and the sealing element, 21.
- Element, 21, is made from a single piece of material and when shaped forms an upper portion, 29, and two downwardly extending portions, 30 and 31.
- the upper portion, 29, is limited in one direction, commonly known as "Seal Length", by two parallel edges, 32 and 32a.
- the first extending portion, 30, is made by bending, in a clockwise direction as viewed in FIGURE 6, the material along a line, 33, perpendicular to edges, 32 and 32a.
- the other extending portion, 31, is made by bending the material in a counter clockwise direction along a line, 34, also perpendicular to edges, 32 and 32a, thus line, 34, is parallel to line, 33.
- the portions, 30 and 31 are also limited in one direction, the same as the upper portion, 29, by edges, 32 and 32a.
- the first portion, 30, is limited in the other direction by an edge, 35, parallel to line, 33, and portion, 31, is likewise limited by edge, 36, parallel to line, 34. Therefore all three portions, 29, 30 and 31, have a rectangular shape and portions, 30 and 31, are the same size and are bent downward between 70° and 80° from the upper portion, 29.
- the seals, 21, can nest one over the other to allow considerable more seals in the magazine, 22, than if the portions, 30 and 31, were perpendicular to upper portion, 29.
- the magazine, 22, has a front wall, 37, and a back wall, 38, to provide a cavity in which the seals, 21, are retained along the center line of the crimping means, 26.
- the bottom edge, 39, of the leading seal, 25, rests on a portion, 40, of a stationary plate defining a lower jaw, 41, and the opposite edge, 42, rest on a plate, 43, attached to the magazine wall, 37.
- the plate, 43 has one edge, 44, bent upward and the jaw, 41, has a tapered edge, 45, to allow easy entry of the band, 13.
- the end, 14, that is held by the gripping jaw, 15, is supported by a surface, 46, to keep the band, 13, a distance above a cavity provided in the lower jaw, 41, and defining the crimping surface, 47, of the lower jaw, 41.
- the band, 13, overlaps the end, 14, and is also positioned above surface, 47.
- the transfer device, 24, pushes the leading seal, 25, from the magazine, 22, into the crimping means, 26, to align the centerline of the lower jaw, 41, and under the ram, 27, as shown in FIGURE 3.
- the seal, 21, is also moved downward until the edges, 39 and 41, contact the crimping surface, 47.
- the surface, 47 has a symmetrical shape about the centerline of the jaw, 41.
- the cavity of the jaw, 41 can best be described as having two inclined surfaces, 48 and 48a, having an included angle of no more than 60° and a straight horizontal lower surface, 49, intersecting surfaces, 48 and 48a.
- the upper edges, 51 and 51a are further apart than the outermost edges, 39 and 42, of the seal, 21, to assure the seal, 21, will be crimped when the ram, 27, is powered downward.
- portion, 30, Since the portion, 30, is positioned at an angle considerably off perpendicularity to inclined surface, 48, there is a force vector causing portion, 30, to bend inwardly toward the centerline of the seal as the edge, 42, slides along inclined surface, 48.
- the opposite seal portion, 31, likewise bends inwardly.
- seal portions, 30 and 31 do not remain flat during the bending but tend to take on a temporary arcuate shape.
- the band portions are therefore squeezed between seal portion, 29, 30 and 31, to provide a frictional securing means.
- the free portion of the band, 13, is severed near the end of the seal, 21, by a cutting means, 52.
- the ram, 27, is raised and the gripping jaw, 15, is released to allow the tool, 11, to be moved to the next position.
- the inside surfaces of the seal can be coated or serrated which is of great value when using non metallic band.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Basic Packing Technique (AREA)
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP88200662A EP0336020A1 (de) | 1988-04-07 | 1988-04-07 | Bandschweissapparat |
JP8712089A JPH024610A (ja) | 1988-04-07 | 1989-04-07 | バンドの密封装置 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP88200662A EP0336020A1 (de) | 1988-04-07 | 1988-04-07 | Bandschweissapparat |
Publications (1)
Publication Number | Publication Date |
---|---|
EP0336020A1 true EP0336020A1 (de) | 1989-10-11 |
Family
ID=8199775
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP88200662A Withdrawn EP0336020A1 (de) | 1988-04-07 | 1988-04-07 | Bandschweissapparat |
Country Status (2)
Country | Link |
---|---|
EP (1) | EP0336020A1 (de) |
JP (1) | JPH024610A (de) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN109178398A (zh) * | 2018-10-24 | 2019-01-11 | 杨文康 | 一种用于包装机的自动转向热压及下料一体设备 |
Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
BE346755A (de) * | ||||
US3360017A (en) * | 1965-07-16 | 1967-12-26 | Signode Corp | Combination strapping tool |
DE1486078A1 (de) * | 1964-09-11 | 1969-03-13 | Rheem Internat Inc | Klammervorrichtung |
FR2304541A1 (fr) * | 1975-03-17 | 1976-10-15 | Kippes Ernst | Douille de fermeture empilable pour ficelages, cerclages ou analogues |
FR2330895A1 (fr) * | 1975-11-07 | 1977-06-03 | Banholzer & Wenz | Attache empilable pour relier les extremites d'un objet, en particulier, les extremites d'une bande ou autre encerclant un paquet |
-
1988
- 1988-04-07 EP EP88200662A patent/EP0336020A1/de not_active Withdrawn
-
1989
- 1989-04-07 JP JP8712089A patent/JPH024610A/ja active Pending
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
BE346755A (de) * | ||||
DE1486078A1 (de) * | 1964-09-11 | 1969-03-13 | Rheem Internat Inc | Klammervorrichtung |
US3360017A (en) * | 1965-07-16 | 1967-12-26 | Signode Corp | Combination strapping tool |
FR2304541A1 (fr) * | 1975-03-17 | 1976-10-15 | Kippes Ernst | Douille de fermeture empilable pour ficelages, cerclages ou analogues |
FR2330895A1 (fr) * | 1975-11-07 | 1977-06-03 | Banholzer & Wenz | Attache empilable pour relier les extremites d'un objet, en particulier, les extremites d'une bande ou autre encerclant un paquet |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN109178398A (zh) * | 2018-10-24 | 2019-01-11 | 杨文康 | 一种用于包装机的自动转向热压及下料一体设备 |
Also Published As
Publication number | Publication date |
---|---|
JPH024610A (ja) | 1990-01-09 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
PUAI | Public reference made under article 153(3) epc to a published international application that has entered the european phase |
Free format text: ORIGINAL CODE: 0009012 |
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AK | Designated contracting states |
Kind code of ref document: A1 Designated state(s): AT BE CH DE ES FR GB GR IT LI LU NL SE |
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17P | Request for examination filed |
Effective date: 19900404 |
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17Q | First examination report despatched |
Effective date: 19911015 |
|
STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: THE APPLICATION IS DEEMED TO BE WITHDRAWN |
|
18D | Application deemed to be withdrawn |
Effective date: 19920428 |