GB2118265A - Apparatus for tightening and fastening a securing band - Google Patents
Apparatus for tightening and fastening a securing band Download PDFInfo
- Publication number
- GB2118265A GB2118265A GB08309346A GB8309346A GB2118265A GB 2118265 A GB2118265 A GB 2118265A GB 08309346 A GB08309346 A GB 08309346A GB 8309346 A GB8309346 A GB 8309346A GB 2118265 A GB2118265 A GB 2118265A
- Authority
- GB
- United Kingdom
- Prior art keywords
- band
- overlapping ends
- counterplate
- securing band
- securing
- 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.)
- Granted
Links
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
- B65B13/30—Securing ends of binding material by deforming the overlapping ends of the strip or band
- B65B13/305—Hand tools
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Basic Packing Technique (AREA)
- Control And Other Processes For Unpacking Of Materials (AREA)
Abstract
Apparatus for tightening a securing band around a package and for connecting the overlapping ends of the securing band 10 by a fastening and for severing the part of the securing band leading to the supply reel which is not required for the strapping which is being applied, wherein the cutting device comprises a notch cutter 28 actuatable with the upper punching tool 17 and a counterplate 29 and is arranged between the fastening device and the tightening device, wherein the counterplate of the cutting device serving as a support for the overlapping ends of the securing band and cooperating with the notch cutter in the direction of movement of the notch cutter includes a concave depression 31 as a free space running transversely of the securing band, in which the overlapping ends of the securing band, which are secured at one end by the fastening device and at the other end by the tightening device, are capable of curving downwardly by means of the notch cutter out of the plane of the band, in order to increase the tension prevailing in the upper end of the band and so as to achieve a separating tension necessary for severing the securing band at the notched position. <IMAGE>
Description
SPECIFICATION
Apparatus for tightening and fastening the overlapping ends of a securing band placed around a package
The invention relates to an apparatus for tightening a securing band placed around a package and withdrawable from a supply reel and for connecting the overlapping ends of the securing band with a sleeveless fastening and for cutting off the part of the securing band leading to the supply reel which is not required for the tightened strapping, comprising a housing for receiving the tightening device and the fastening device consisting of a movable upper punching tool and a fixed lower punching tool, wherein a notching tool of the cutting device, engageable with the upper end of the securing band and operating transversely of the length direction of the band, is provided on the upper punching tool of the fastening device engageable with the upper side of the overlapping ends of the securing band on the side facing the tightening device and the supply reel, which presses against a fixed counterplate when notching the overlapping ends of the securing band.
In this known device, a simpler construction is possible with regard to the cutting device, since only one tool, the notch cutter, is necessary. Moreover, a simple hand operation is possible for the user, since the overlapping ends of the securing band, placed directly together, can be located in the slot-shaped recess of the housing serving for lateral guidance of the overlapping ends of the band between the two punching tools. For cutting off the part of the securing band leading to the supply reel which is not required for the tightened strapping, very high cutting forces are necessary however, particularly when using heavy-duty securing bands of steel, since the notch cutter must pass properly through the upper end of the band. Moreover, the stroke of the cutter must be adjusted exactly to the band thickness, in order to avoid also cutting through the lower end of the band.
Cutting tools for such devices for tightening and fastening the overlapping ends of a securing band placed around a package are already known, in which cutting is effected by shearing. For shearing through the securing band, essentially smaller forces are necessary, so that bands of higher strength can be cut off using lower forces. Furthermore, bands of different thicknesses can be severed directly, without adjustment of the apparatus being required. It is considered to be disadvantageous that two tools are required, however, namely a top cutter and a lower cutter. In order to shear through the part of the securing band leading to the supply reel which is not required for the strapping being applied, the lower cutter must be arranged between the underlying end of the band and the overlying end of the band, since the underlying end must not be cut through.The operator must guide the lower and upper ends of the band correctly into the device in order to use the device in the prescribed way. In order to avoid incorrect location of the overlapping ends of the band, cutting devices with notch cutters are used as a rule, insofar as the toughness of the securing band allows this.
The high notching forces required are thus provided for. Only for securing bands of higher toughness are cutting devices with two shearing blades used, in order to be able to operate with sufficient force. Incorrect location of the ends of the band must again be taken into consideration.
The invention is based upon the purpose of providing an apparatus of the kind explained initially, in which such disadvantages are avoided and severance of the overlying end of the band is possible without the need for high forces, even with securing bands of high strength.
This purpose is solved in accordance with the invention, in that the counterplate of the cutting device serving as a support for the overlapping ends of the securing band and cooperating with the notch cutter includes a concave depression as a free space in the direction of movement of the notch cutter and running transversely of the securing band, in which the overlapping ends of the securing band, which are secured at one end by the fastening device and at the other end by the tightening device, are curvable downwardly out of the plane of the band by means of the notch cutter, in order to increase the tension in the upper end of the band and so as to achieve a separating tension necessary for severing the securing band at the position of the notch.
In this way in a simple manner, cutting through the upper end of the band by means involving high forces is avoided, since, with the notch cutter, only notching of the band end which is to be cut off has to be carried out. This notching is sufficient to sever the securing band at the notched position because of the additional tension applied. The notching follows after tightening the securing band around the package in conjunction with punching of the fastening. The notch cutter only contacts the upper end of the band when the two punching tools of the fastening device have already cut into the overlapping ends of the securing band, but before formation of the fastening has been completed.By the pressure of the notch cutter against the upper side of the overlapping ends of the securing band, these overlapping ends of the band are forced against the parts of the counterplate of the cutting device lying in front of and behind the depression forming the free space and the parts of the overlapping ends of the securing band located above the depression forming the free space are curved downwardly. The tension prevailing in the two overlapping ends of the band is increased because of this downward curvature, since the overlapping ends of the securing band are held firmly at one end by the fastening device and at the other end by the tightening device. The tension in the securing band in this region is thus so high that the upper part of the securing band leading to the supply reel which is not needed for the strapping being applied is severed at the notched position.
The downward curving of the overlapping ends of the securing band caused by the notch cutter can result in the elastic limit being exceeded, so that permanent deformation of the securing band is caused. The edge arising from the notching and separation steps is thus bent downwardly against the underlying end of the band, so that the edge always abuts tightly against such underlying end, so that damage to the free end of the band is avoided.
The parts of the counterplate of the cutting device located in front of and behind the depression forming the free space, against which the overlapping ends of the band are pressed by the downward movement of the notch cutter on correct use of the cutting device, are radiused into the depression forming the free space, preferably. In this simple way, sharp edges on the parts which come into contact with the underlying end of the band are avoided, so that such edges cannot dig into the underlying end of the band.
Severance of the underlying end of the band at the notched position is thus avoided.
The depression forming the free space in the counterplate of the cutting device cooperating with the notch cutter can be formed from the groove-shaped recess in a U-shaped rail operating as a counterplate and running transversely of the longitudinal direction of the band. An aperture in the U-shaped rail can be used, in a simple way, as the counterplate with the depression for the notch cutter of the cutting device.
The parts of the counterplate of the cutting device located in front of and behind the depression forming the free space, against which the overlapping ends of the band are pressed by the downward movement of the notch cutter on correct use of the cutting device, can project upwardly somewhat from the plane occupied by the overlapping ends of the securing band when they are tightened between the fastening device and the tightening device. On tightening the securing band, it is thus drawn over the counterplate.On forming the fastening, the overlapping ends of the securing band are pressed into the lower punching tool by means of the downwardlymoving upper punching tool, so that, in conjunction with this downward pressure in the region of the fastening, at the same time, an increase occurs in the tension in the part of the overlapping ends of the band remaining between the fastening device and the tightening device.
The counterplate of the cutting device cooperating with the notch cutter can be formed from two rib-shaped projections running transversely of the longitudinal direction of the band and forming the underside of a slotshaped recess of the housing serving for lateral guidance of the overlapping ends of the band between the two punching tools, between which a groove-shaped recess is provided as the depression forming the free space. In this way, the counterplate of the cutting device provided with the depression is formed directly from the housing.
In the drawing, the invention is described in terms of an embodiment, in which:
Figure 1 shows an apparatus according to the invention for securing the overlapping ends of a metal band placed around a package, in side view;
Figure 2 shows the apparatus in the severing position on a larger scale, partly broken away; and
Figure 3 shows a securing band with the prepared fastening in plan view, partly broken away.
The apparatus shown in the drawing serves for tightening a securing band 10 placed around a package, not shown in detail, and for fastening the overlapping ends of the securing band 10 with a sleeveless fastening 11. The fastening 11 is formed from at least one pair of adjacently located angled slots mutually spaced in the width direction of the metal band, in which the middle part 1 2 lying between the angled slots and/or the side parts 1 3 are curved from the plane of the band, in order to enable interengagement of the projecting corners of the side parts 1 3 formed by the angled slots on one end of the band behind the projecting corners of the middle part 1 2 of the other end of the band.
As can be seen particularly from Figs. 1 and 2, the apparatus consists of a housing 1 4 with a base-plate 1 5 locatable on the package, which includes the lower punching tool 16, whereas the upper punching tool 1 7 is arranged to be vertically movable in the housing 14. The upper punching tool 1 7 is operable by means of a hand lever 1 8 pivotally mounted in the housing 14 from the starting position shown in Fig. 1 to the punching position. In Fig. 1, the punching tools 1 6 and 1 7 are in their starting position, whereas in
Fig. 2 the punching position is illustrated.
The housing 14 includes a slot-shaped recess 20 for lateral guidance of the overlapping ends of the band between the two tools 16,17 above the base plate 15. Furthermore, the housing 14 is provided in a recess 21 with a pivotally mounted tightening device 22, which is urged by means of a spring 1 9 in the direction of the base-plate 1 5. The tightening device 22 is thus pivotable about the bearing pin 23 and includes a tensioning wheel 25 rotatable by means of a hand lever 24 in the tightening direction and acting on the upper side of the overlapping ends of the band.The tightening device 22 pivotable about the bearing pin 23 is provided with a hand lever 26, by means of which the tightening device 22 is movable from the starting position shown in Fig. 1 against the action of the spring 1 9 into the band insertion position.
The apparatus shown in the drawing serves to tighten a securing band 10 placed around a package and withdrawable from a supply reel and to fasten the overlapping ends of the securing band 10 with a sleeveless fastening 11 and to sever the part of the securing band 10 which leads towards the supply reel, not shown in more detail, and is not required for the tightened strapping being applied.
The cutting device 27 consists of a notch cutter 28 and a counterplate 29.
As can be seen particularly from Fig. 1, the notch cutter 28 is secured to the slider 30 supporting the upper punching tool 1 7 and is thus pressed against the top of the overlapping ends of the securing band 10 on movement of the upper punching tool 1 7 into the punching position illustrated in Fig. 2. The notch cutter 28 is arranged on the side of the upper punching tool 1 7 which faces towards the tightening device 22.
The counterplate 29 of the cutting device 27 cooperating with the notch cutter 28 and serving to support the overlapping ends of the securing band 10 includes in the direction of movement of the notch cutter 28 a concave depression 31 as a free space running transversely of the securing band 10, in which the overlapping ends of the securing band 10, which are secured at one end by the fastening device and at the other end by the tightening device 22, are capable of being curved downwardly from the plane of the band by means of the notch cutter 28, in order to increase the tension in the end of the upper band and so as to achieve a separating tension necessary for severing the securing band 10 at the position of the notch.
The depression 31 forming the free space in the counterplate 29 of the cutting device 27 cooperating with the notch cutter 28, as can be seen particularly from Fig. 2, is formed from the groove-shaped recess 32 of a Ushaped rail 33 operating as the counterplate 29 and running transversely of the longitudinal direction of the band. The U-shaped rail 33 is secured to the base-plate 1 5.
In making proper use of the cutting device 27, the notch cutter first contacts the top of the overlapping ends of the securing band 10 and presses these overlapping ends of the band 10 against the parts 34 of the counterplate 29 lying in front of and behind the depression forming the free space. On its further downward movement, the notch cutter 28 presses into the uppermost end of the securing band and downwardly curves these overlapping ends of the band 10 into the depression 31 forming the free space. By this downward curvature of the overlapping ends of the securing band, a considerable increase in the tension in the band occurs, since the overlapping ends of the securing band 10 are firmly held at the one end by the tightening device 22 and at the other end by the fastening device 16,17.The notch cutter 28 is arranged on the slider 30 for the upper punching tool 17, so that the punching tools 1 6 and 1 7 have already engaged the overlapping ends of the securing band 10 before the notch cutter 28 abuts the top of the overlapping ends of the securing band. The notch cutter 28 should not pass through the whole of the upper end of the band in a forceapplying manner, but should merely notch the upper end of the band without the application of a large force, so that, by the increase in tension, separation of the upper end of the band occurs at the notched position.
The parts 34 of the counterplate 29 of the cutting device 27 lying in front of and behind the depression 31 forming the free space, against which the overlapping ends of the securing band 10 are pressed on prescribed use of the cutting device 27 by the downward movement of the notch cutter 28, merge with radiused portions into the depression 31 forming the free space. As a result of these radiused parts, kinks on the underside of the underlying end of the band are avoided, so that severance of the lower end of the band is not likely to occur, despite the increase in the tension in such lower end of the band.
The parts 34 of the counterplate 29 of the cutting device 27 lying in front of and behind the depression 31 forming the free space, against which the overlapping ends of the securing band are pressed on prescribed use of the cutting device 27 by the downward movement of the notch cutter 28, project upwardly somewhat from the plane which is occupied by the overlapping ends of the securing band 10 when stretched between the fastening device 1 6,1 7 and the tightening device 22.On proper use of the cutting device 27, the overlapping ends are first pressed by the downwardly-moving upper punching tool 1 7 downwardly into the lower punching tool 16, so that, over the counterplate 29 of the cutting device 27, upward curving of the overlapping ends of the securing band 10 occurs, whereby the tension in the overlapping ends of the securing band 10 is increased. This increase in the tension in the overlapping ends of the securing band 10 assists in severing the securing band 1 0.
As already mentioned, the construction il lustrated is merely an exemplary embodiment of the invention and the latter is not limited to it. In practice, many other constructions and modifications are possible. The counterplate 29 of the cutting device 27 cooperating with the notch cutter 28 could be formed from two rib-like projections running transversely of the longitudinal direction of the band and forming the underside of a slot-like recess 20 in the housing 14 serving to provide lateral guidance of the overlapping ends of the securing band 10 between the two punching tools 16,1 7, between the depression 31 of which, forming the free space a groove-shaped recess 32 is provided.
Claims (6)
1. An apparatus for tightening a securing band placed around a package and withdrawable from a supply reel and for connecting the overlapping ends of the band with a sleeveless fastening and for cutting off the part of the band leading to the supply reel which is not required for the tightened strapping, comprising a housing for receiving a tightening device and a fastening device, consisting of a movable upper punching tool and a fixed lower punching tool, wherein a notching tool of the cutting device, engageable with the upper end of the band and operating transversely of the length direction of the band, is provided on the upper punching tool so as to be engageable with the upper side of the overlapping ends of the band, on the side facing the tightening device and the supply reel, which presses against a fixed counterplate when notching the overlapping ends of the securing band, wherein the counterplate of the cutting device includes a concave depression forming a free space running transversely of the band in the direction of movement of the notch cutter, whereby the overlapping ends of the band, secured at one end by the fastening device and at the other end by the tightening device, are curvable downwardly out of the plane of the band by means of the notch cutter so as to increase the tension in the upper end of the band sufficiently to sever the band at the position of the notch.
2. An apparatus according to claim 1, wherein the parts of the counterplate located in front of and behind the depression are radiused into the depression.
3. An apparatus according to claim 1 or 2, wherein the depression in the counterplate is formed from the groove-shaped recess of a
U-shaped rail disposed transversely of the longitudinal direction of the band.
4. An apparatus according to any preceding claim, wherein the parts of the counterplate against which the overlapping ends of the band are pressed by downward movement of the notch cutter project above the plane of the overlapping ends of the band when tightened between the fastening device and the tightening device.
5. An apparatus according to any preceding claim, wherein the counterplate of the cutting device is formed from two rib-shaped projections running transversely of the longitudinal direction of the band and forming the underside of a slot-shaped recess in the housing serving for lateral guidance of the overlapping ends of the band between the two punching tools, a groove-shaped recess being provided between the two projections.
6. An apparatus according to claim 1, substantially as described with reference to
Figs. 1 and 2 of the accompanying drawing.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE19823213449 DE3213449A1 (en) | 1982-04-10 | 1982-04-10 | DEVICE FOR TENSIONING AND CONNECTING THE OVERLAPPING ENDS OF A STRAP STRAPPED A PACKAGE |
Publications (3)
| Publication Number | Publication Date |
|---|---|
| GB8309346D0 GB8309346D0 (en) | 1983-05-11 |
| GB2118265A true GB2118265A (en) | 1983-10-26 |
| GB2118265B GB2118265B (en) | 1985-09-18 |
Family
ID=6160739
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB08309346A Expired GB2118265B (en) | 1982-04-10 | 1983-04-06 | Apparatus for tightening and fastening a securing band |
Country Status (5)
| Country | Link |
|---|---|
| CH (1) | CH659221A5 (en) |
| DE (1) | DE3213449A1 (en) |
| GB (1) | GB2118265B (en) |
| IT (1) | IT1161126B (en) |
| SE (1) | SE449208B (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0372212A1 (en) * | 1988-12-09 | 1990-06-13 | Fried. Krupp AG Hoesch-Krupp | Strapping device |
| US4953599A (en) * | 1989-07-17 | 1990-09-04 | Signode Corporation | Method of gripping a strap for bonding the strap end portions to each other |
| EP0671325A1 (en) * | 1994-03-07 | 1995-09-13 | Signode Corporation | Compressive cutting mechanism having plural-edged cutter |
| US6412257B1 (en) * | 2000-08-28 | 2002-07-02 | Tekpak Corporation | Portable and manual binding device |
| EP1410990A1 (en) * | 2002-10-18 | 2004-04-21 | Orgapack GmbH | Cutting tool for a bundling device and method for its manufacturing |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| NZ519012A (en) | 2001-05-21 | 2003-10-31 | Orgapack Gmbh | Manually actuated strapping unit for wrapping a steel strap around a packaged item |
| ATE282552T1 (en) | 2001-05-21 | 2004-12-15 | Orgapack Gmbh | STRAPPING DEVICE WITH INTERCHANGEABLE WEARING PARTS |
Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2072566A (en) * | 1933-03-14 | 1937-03-02 | Signode Steel Strapping Co | Combined stretching and sealing tool |
| DE648536C (en) * | 1936-02-14 | 1937-08-03 | Titan Eisenwarenfabrik Gmbh | Method and device for producing band iron strapping |
| GB850392A (en) * | 1957-07-05 | 1960-10-05 | Jose Maria Ferre Serra | Apparatus for securing strip iron on packages |
| DE1247936B (en) * | 1964-02-04 | 1967-08-17 | Borbe Wanner A G | Tensioning and closing device for band-shaped strapping |
| DE6943604U (en) * | 1969-11-07 | 1970-02-12 | Gerd Mosca Maschf | DEVICE FOR TURNING PACKAGING PIECES WITH WELDABLE PLASTIC FENDER |
| DE7245851U (en) * | 1972-01-20 | 1974-05-16 | Verpackungsmaschinen Ag | Device for the positive connection of two overlapping tape ends |
| JPS5134800B2 (en) * | 1972-12-19 | 1976-09-28 | ||
| US4041993A (en) * | 1975-03-07 | 1977-08-16 | Signode Corporation | Strap tensioner with automatic cut-off |
-
1982
- 1982-04-10 DE DE19823213449 patent/DE3213449A1/en active Granted
-
1983
- 1983-04-06 GB GB08309346A patent/GB2118265B/en not_active Expired
- 1983-04-08 SE SE8301941A patent/SE449208B/en not_active IP Right Cessation
- 1983-04-11 CH CH1942/83A patent/CH659221A5/en not_active IP Right Cessation
- 1983-04-11 IT IT20533/83A patent/IT1161126B/en active
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0372212A1 (en) * | 1988-12-09 | 1990-06-13 | Fried. Krupp AG Hoesch-Krupp | Strapping device |
| US5029433A (en) * | 1988-12-09 | 1991-07-09 | Hoesch Aktiengesellschaft | Strapper |
| US4953599A (en) * | 1989-07-17 | 1990-09-04 | Signode Corporation | Method of gripping a strap for bonding the strap end portions to each other |
| AU619340B2 (en) * | 1989-07-17 | 1992-01-23 | Signode Kabushiki Kaisha | Method of gripping and strap for bonding the strap end portions to each other |
| EP0671325A1 (en) * | 1994-03-07 | 1995-09-13 | Signode Corporation | Compressive cutting mechanism having plural-edged cutter |
| US6412257B1 (en) * | 2000-08-28 | 2002-07-02 | Tekpak Corporation | Portable and manual binding device |
| EP1410990A1 (en) * | 2002-10-18 | 2004-04-21 | Orgapack GmbH | Cutting tool for a bundling device and method for its manufacturing |
Also Published As
| Publication number | Publication date |
|---|---|
| GB8309346D0 (en) | 1983-05-11 |
| GB2118265B (en) | 1985-09-18 |
| DE3213449C2 (en) | 1988-08-25 |
| CH659221A5 (en) | 1987-01-15 |
| IT8320533A0 (en) | 1983-04-11 |
| DE3213449A1 (en) | 1983-10-20 |
| SE449208B (en) | 1987-04-13 |
| IT1161126B (en) | 1987-03-11 |
| SE8301941D0 (en) | 1983-04-08 |
| SE8301941L (en) | 1983-10-11 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PCNP | Patent ceased through non-payment of renewal fee |