WO2007007181A1 - Device for tensioning belts and the like - Google Patents
Device for tensioning belts and the like Download PDFInfo
- Publication number
- WO2007007181A1 WO2007007181A1 PCT/IB2006/001941 IB2006001941W WO2007007181A1 WO 2007007181 A1 WO2007007181 A1 WO 2007007181A1 IB 2006001941 W IB2006001941 W IB 2006001941W WO 2007007181 A1 WO2007007181 A1 WO 2007007181A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- reel
- rotation
- ring gear
- tooth
- designed
- Prior art date
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60P—VEHICLES ADAPTED FOR LOAD TRANSPORTATION OR TO TRANSPORT, TO CARRY, OR TO COMPRISE SPECIAL LOADS OR OBJECTS
- B60P7/00—Securing or covering of load on vehicles
- B60P7/06—Securing of load
- B60P7/08—Securing to the vehicle floor or sides
- B60P7/0823—Straps; Tighteners
- B60P7/083—Tensioning by repetetive movement of an actuating member
Definitions
- the present invention relates to a device for tensioning belts and the like .
- the present invention relates to a device for tensioning belts and other flexible elements, of the type normally used for example to secure loads and goods .
- belt is used by way of example and without limiting the scope of the invention, which may also comprise cables, ropes or straps made of any material, provided that they are flexible and designed to be tensioned.
- Tensioning devices also commonly known as belt tightener devices, are used to transport goods, to secure the load to the respective means of transport; for example, to fix the goods on the body of a truck or secure boats on the trailer during transportation or even to fix loads on car roof racks -
- the most widespread known type of devices comprise a reel for winding the belt, a support, a lever and a ratchet gear designed to allow reel rotation in one direction only.
- the lever, the support and the reel are all connected by a pin which also forms a reel axis of rotation.
- Operation of said type of device is rather simple and allows, with an alternating movement of the lever, the reel to be rotated, causing the belt to be wound on it; the alternating movement of the lever being allowed by the ratchet gear which ensures that the lever pulls the reel, making it rotate only in the direction of rotation in which the belt is wound, whilst in the opposite direction the lever moves freely so that it can return to its starting position for a new winding step.
- the ratchet gear usually comprises two gearwheels positioned at the longitudinal ends of the above-mentioned pin, and two elements which engage with the gearwheels, or teeth, one of which perforins the function described above of allowing rotation of the gearwheel and the reel in one direction only, whilst the other has the function of both stopping rotation of the reel, subject to the load consisting of the tension applied to the belt during the lever recovery stroke, and of maintaining the final belt tension.
- the engagement elements are held in their operating positions by respective elastic springs and can be disengaged from the gearwheels by overcoming the opposing action of the elastic springs, to allow rotation of the reel in the opposite direction and belt unwinding from the reel .
- a first disadvantage is the fact that the engagement elements, sliding over other parts of the device, both during the winding movement and during the gearwheel disengagement step, generate significant friction with said parts and, moreover, since all of the components of the device are substantially external, it is impossible to effectively lubricate them.
- Another disadvantage is the large longitudinal dimensions of the known devices, not just during winding operating steps but also in the non-operating condition.
- the aim of the present invention is therefore to overcome the above-mentioned disadvantages by providing a tensioning device for belts and like which is compact and at the same time functional and practical to use.
- Figure 1 is an exploded perspective view of a first embodiment of the tensioning device made in accordance with the present invention
- Figure 2 is a perspective view with some parts exploded for clarity, of the device from Figure 1 in a first operating configuration
- Figure 3 is a perspective view with some parts exploded and in cross-section for clarity, of the device from Figure 1 in a second operating configuration;
- Figure 4 is a perspective view of the device from Figure 3 ;
- Figure 5 is a perspective view with some parts exploded for clarity, of a first alternative embodiment of the tensioning device in the previous Figures;
- Figure 6 is a perspective view from a different angle of the device from Figure 5;
- Figure 7 is a perspective view of another alternative embodiment of the device in the previous Figures;
- Figure 8 is a perspective view with some parts exploded for clarity, of another alternative embodiment of the tensioning device in the previous Figures .
- the numeral 1 denotes as a whole a tensioning device for belts, the latter not illustrated, made in accordance with the present invention.
- the device 1 comprises a supporting base 2 comprising a platform 3 ; roughly circular, and a wall 4 projecting from the platform 3.
- a first pin 5 with a central axis Al is fixed to and projects from the platform 3 and has a threaded distal end 5a.
- the central axis Al of the first pin 5 forms a respective axis of rotation for the reel 6.
- the reel 6 has an axially symmetrical shape and comprises a first proximal ring-shaped edge 6a, a substantially cylindrical central body 6b on which the belt is wound, and a distal ring- shaped edge 6c .
- a first direction of rotation of the reel 6, which results in the belt being wound on the reel 6, is indicated in the accompanying drawings with an arrow Sl .
- the ring-shaped edges 6a, 6c constitute a contact surface for the longitudinal edges of the belt, guaranteeing regular winding of the belt on top of itself.
- the reel 6 has a central through- hole 7 designed to allow insertion of the first pin 5 and, if necessary, insertion between the reel 6 and the first pin 5, of an anti-friction bearing 8, rolling or sliding.
- a plug 9 closes the top of the hole 7 and holds the reel 6 stably fitted on the first pin 5; the plug 9 having a hole 10 with internal threading which engages with the threaded distal end 5a of the first pin 5 by screwing onto the latter.
- the device 1 also comprises a ring gear 13, having internal toothing 13a, the ring gear 13 being inserted in the proximal ring-shaped edge 6a of the reel 6 and made integral with it by fixing elements of the known type and not illustrated.
- the device 1 comprises a lever 14 for operating the reel 6.
- the operating lever 14 comprises a first portion 14a pivoted on the first pin 5 and a second portion 14b to be gripped by a user.
- the first and second portions 14a, 14b of the lever 14 are connected to one another by a joint and the second portion 14b is rotatably connected to the first portion 14a by a respective pin 15 with a central axis A2.
- the central axis A2 of the pin 15 lies in a plane, not illustrated, perpendicular to the axis of rotation Al of the reel 6.
- a spring 16 of the known type guarantees maintenance of a minimum dimensions stable equilibrium position such as that shown in Figure 4.
- the device 1 comprises an arm 17 with two longitudinally opposite ends 17a, 17b.
- a first tooth 19 for engagement with the ring gear 13.
- the first tooth 19 is therefore designed to oscillate relative to the arm 17 about the axis 01 of the pin 18 whose axis 01 therefore forms a first axis of oscillation for the first tooth 19.
- a helical spring subjected to bending stress 20 is fitted so that it is coaxial with the pin 18 on which the first tooth 19 is pivoted, with its end coils in contact respectively with the arm 17 and with the first tooth 19.
- An anti-friction bearing 21 is fitted so that it is coaxial with the pin 18 at the first end 17a of the arm 17.
- the bearing 21 has, in the direction of the first pin 5 of the reel 6, a radial dimension larger than both the first tooth 19 and the arm 17.
- the arm 17 is pivoted on the platform 3 of the base 2, by means of a pin 22 with a central axis 02.
- the arm 17 is therefore designed to oscillate relative to the base 2 about the axis 02 of the pin 22, said axis 02 therefore forming a second axis of oscillation for the first tooth 19 which is supported by the arm 17.
- a helical spring subjected to bending stress 23 is fitted so that it is coaxial with the pin 22 on which the arm 17 is pivoted, with its end coils in contact respectively with the base 2 and with the arm 17.
- the first and second axes of oscillation 01, 02 are parallel with one another and with the axis of rotation Al of the reel 6.
- the first portion 14a of the operating lever 14 has a hole 24 for insertion of the first pin 5 of the reel 6 and, extending around the hole 24, a first cam profile 25.
- the first cam profile 25 comprises a first sector 25a, with larger radial extension, and a second sector 25b, with smaller radial extension, where said radial extensions are assessed with reference to the axis Al of the first pin 5 on which the hole 24 is fitted in an operating configuration illustrated in Figure 2.
- the first portion 14a of the operating lever 14 supports a second tooth 26 for engagement with the ring gear 13.
- the second tooth 26 is pivoted on the lever 14 by means of a pin 27 with a central axis 03, and is designed to oscillate relative to the lever 14 about the axis 03 of the pin 27, therefore the axis 03 forms a third axis of oscillation for the device 1.
- a helical spring subjected to bending stress 28 is fitted so that it is coaxial with the pin 27 on which the second tooth 26 is pivoted, with its end coils in contact respectively with the operating lever 14 and with the second tooth 26.
- a yielding element 31 is pivoted on the pin 27 on which the second tooth 26 pivots and is integral with it in its oscillations about the third axis of oscillation 03.
- the yielding element 31 is partly inserted in the slot 29 to engage with the second cam profile 30 using methods described in detail below.
- a track 32 On a peripheral portion of the base 2 platform 3 there is a track 32 with two end walls 32a, 32b.
- the sliding element 33 is formed by a first arm 34a of a rocker lever 34 pivoted, by means of a pin 35, on the first portion 14a of the operating lever 14, to oscillate about a central axis 04 of the pin 35.
- the rocker lever 34 also comprises a second control arm 34b, substantially extending in line with the first arm 34a.
- a helical spring subjected to bending stress 36 is fitted so that it is coaxial with the pin 35 of the rocker lever 34 and is designed to hold the sliding element 33 engaged with the track 32.
- the sliding element 33 and the track 32 form guide means 37 for the operating lever 14.
- the guide means 37 form, for the operating lever 14, a first predetermined angular path Pl which, as explained in detail below, the lever 14 follows with alternating motion in order to wind the belt, not illustrated, on the reel 6.
- the second control arm 34b of the rocker lever 34 forms means 38 for disengagement of the sliding element 33 from the track 32 and, consequently, also disengagement of the lever 14 from its guide means 37.
- the spring 23, visible in Figure 1 and operating on the arm 17, would push the arm 17 so that it rotates about the second axis of oscillation 02 to move its first end 17a towards the first pin 5 of the reel 6 , and therefore to move the first tooth 19 away from the ring gear 13 , but said movement is prevented by the first larger sector 25a of the first cam profile 25 which opposes the rotation of the arm 17 about its pivot pin 22.
- anti-clockwise rotation of the first tooth 19 about the first axis of oscillation 01 is inhibited by the obstruction consisting of a stop 41 integral with the arm 17
- anti-clockwise rotation of the first tooth 19 about the second axis of oscillation 02 is inhibited by the obstruction consisting of the first sector 25a of the first cam profile 25, the first sector 25a engaging in a rolling fashion on the anti-friction bearing 21.
- the anti-friction bearing 21, coaxial with the first axis of oscillation 01 loses its contact with the first sector 25a of the first cam profile 25 and instead makes contact with the second sector 25b of the first profile 25.
- the stop 41 halting the anti-clockwise rotation of the first tooth 19, prevents it from engaging with or in any case striking the toothing 13a. If during this step the belt is under tension, said tension, adding to the action of the spring 23, contributes to the anticlockwise rotation of the arm 17 since, forcing the reel 6 and the ring gear 13 to rotate in the direction S2 , through the toothing 13a it transmits to the first tooth 19 and to the arm 17 a force which, relative to the second axis 02, generates a rotating moment in direction S4.
- the configuration described above in which the first tooth 19 is disengaged from the toothing 13a of the ring gear 13 forms a second, non-operating limit position for the arm 17.
- the first and second cam profiles, respectively 25 and 30, the arm 17 and the yielding element 31 form, as a whole, ratchet gear 39 release means.
- both the ring gear 13 and the relative ratchet gear 39 are substantially closed in the proximal ring- shaped edge 6a, it is possible to keep said parts lubricated, therefore guaranteeing optimum friction reduction.
- tooth used relative to the elements labelled 19 and 26, refers to any element designed to engage with the toothing of a ring gear or gearwheel .
- FIGS 5 and 6 show a first alternative embodiment of the tensioning device disclosed.
- Said first alternative embodiment is labelled 1' as a whole, but, to keep the description clear and simple, its component parts corresponding and similar to those already described with reference to the device 1 are labelled, in Figures 5 and 6, with the same reference numbers used in the previous Figures 1 to 4.
- the tensioning device 1' differs from the device 1 previously described substantially in that it comprises two platforms 3a, 3b which can be connected together and positioned at the longitudinally opposite ends of the first pin 5 which, therefore, in this embodiment, is not fitted in such a way that it is projecting, but is instead supported at both of its longitudinal ends 5a, 5b.
- the pin 5 is made in a single part with the reel 6 and rotates integrally with it relative to the base 2.
- the platforms 3a, 3b comprising respective offshoots 50, 51 with a roughly triangular shape, have respective lower edges 50a,
- the platform 3b comprises a notch 53 designed to engage with an end portion of the lever 14, the latter resting in the notch when it assumes its minimum dimensions configuration.
- the notch 53 forms a safety element designed to prevent reel 6 rotation in the second direction of rotation indicated by the arrow S2.
- FIG. 7 shows a second alternative embodiment of the tensioning device disclosed.
- Said second alternative embodiment is labelled 1' ' as a whole, but, to keep the description clear and simple, its component parts corresponding and similar to those already described with reference to the devices 1 and 1' are labelled, in Figure 7 , with the same reference numbers used in the previous Figures 1 to 6.
- the tensioning device 1' ' differs from both of the devices 1 and 1 ' previously described basically in that it comprises two ring gears 13, 130 with internal toothing positioned at the longitudinally opposite ends of the first pin 5, each of the ring gears 13 and 130 being positioned at a respective platform 3a, 3b.
- the presence of two ring gears 13, 130 and, consequently, of two ratchet gears 39 allows a mechanism to be obtained in which the rotation transmitted to the reel 6 is imparted in a symmetrical and balanced fashion, so that it is also possible to increase the load which can be applied to the wound belt.
- FIG 8 shows a third alternative embodiment of the tensioning device disclosed.
- Said third alternative embodiment is labelled X' ' ' as a whole, but, to keep the description clear and simple, its component parts corresponding and similar to those already described with reference to the devices 1, 1' and 1' ' are labelled, in Figure 8, with the same reference numbers used in the previous Figures 1 to 7.
- the tensioning device 1''' basically differs from the devices 1, 1' and 1' ' previously described in that it comprises a planetary gear train 54 through which the rotation is transmitted to the reel 6.
- the gear train 54 comprises a plurality of planet gears 55 fitted idly on the respective pins 56 of a planet gear support element 57, a central pinion 58 and internal toothing 59 made on the platform 3b.
- the planet gear support element 57 is also fitted idly so that it is coaxial with the reel 6 and rotates about the axis Al .
- the ring gear is made in a single part with the belt winding reel .
Landscapes
- Engineering & Computer Science (AREA)
- Transportation (AREA)
- Mechanical Engineering (AREA)
- Transmission Devices (AREA)
- Devices For Conveying Motion By Means Of Endless Flexible Members (AREA)
Abstract
Description
Claims
Priority Applications (5)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP06795114A EP1910128B1 (en) | 2005-07-14 | 2006-07-14 | Device for tensioning belts and the like |
DE602006014835T DE602006014835D1 (en) | 2005-07-14 | 2006-07-14 | DEVICE FOR TENSIONING BELTS AND THE SAME |
AU2006267995A AU2006267995B2 (en) | 2005-07-14 | 2006-07-14 | Device for tensioning belts and the like |
AT06795114T ATE470598T1 (en) | 2005-07-14 | 2006-07-14 | DEVICE FOR TENSIONING BELT AND THE LIKE |
US11/995,238 US7832710B2 (en) | 2005-07-14 | 2006-07-14 | Device for tensioning belts and the like |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
ITB02005A000471 | 2005-07-14 | ||
IT000471A ITBO20050471A1 (en) | 2005-07-14 | 2005-07-14 | BELT AND SIMILAR TENSION DEVICE |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2007007181A1 true WO2007007181A1 (en) | 2007-01-18 |
Family
ID=37311965
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/IB2006/001941 WO2007007181A1 (en) | 2005-07-14 | 2006-07-14 | Device for tensioning belts and the like |
Country Status (7)
Country | Link |
---|---|
US (1) | US7832710B2 (en) |
EP (1) | EP1910128B1 (en) |
AT (1) | ATE470598T1 (en) |
AU (1) | AU2006267995B2 (en) |
DE (1) | DE602006014835D1 (en) |
IT (1) | ITBO20050471A1 (en) |
WO (1) | WO2007007181A1 (en) |
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102010002052A1 (en) | 2009-06-15 | 2010-12-16 | Innoform Ag | Tensioning strap and fastening device for such a tension belt |
DE102010046854A1 (en) * | 2010-09-29 | 2012-03-29 | Frank Lütkemeier | Automatic lashing strap retractor for use in car to secure cargo, has main spring biased for actuating stopper such that brake is released and lashing strap is automatically received in belt receiving space |
EP2955804A1 (en) * | 2014-06-13 | 2015-12-16 | Greenlee Textron Inc. | Mounting assembly for attaching a product to a cable tray |
DE102016009689A1 (en) | 2016-08-11 | 2018-02-15 | Hans Zeilinger | jack Castle |
US10763649B2 (en) | 2014-06-13 | 2020-09-01 | Greenlee Tools, Inc. | Cable feeder |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
USD963448S1 (en) | 2021-01-08 | 2022-09-13 | Cinchy, Inc. | Tension device |
CN115921584B (en) * | 2022-12-28 | 2023-09-15 | 江苏绿能汽配科技有限公司 | Wire jumper wire winding device is prevented in processing of naked copper thin silk |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
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DE3025455A1 (en) * | 1979-07-06 | 1981-01-15 | Fmc Corp | TOOL FOR ATTACHING A STRETCHED TAPE ABOUT AN OBJECT |
DE3337184A1 (en) * | 1982-10-15 | 1984-05-10 | Baumgarten, Nils Börje Valentin, 82078 Hassela | WINDING AND TENSIONING DEVICE FOR A LOAD STRAP |
US6017173A (en) * | 1997-11-13 | 2000-01-25 | Indiana Mills & Manufacturing, Inc. | Web retractor with release lever and tightening handle |
US20030059269A1 (en) * | 2001-09-24 | 2003-03-27 | Bosley James Michael | Cargo restraint apparatus |
Family Cites Families (10)
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US3927580A (en) * | 1971-07-02 | 1975-12-23 | Lewmar Marine Ltd | Disengaging clutch systems for a three-speed winch |
US4328954A (en) * | 1979-05-07 | 1982-05-11 | Pettibone Corporation | Winch with compact, high efficiency and high ratio gearing suitable for free fall |
US4456227A (en) * | 1982-03-23 | 1984-06-26 | Genie Industries, Inc. | Dual-handled winch |
US4545567A (en) * | 1984-04-19 | 1985-10-08 | Warn Industries, Inc. | Winch power transmission |
US4771987A (en) * | 1987-01-02 | 1988-09-20 | Priest Richard K | Winch for loading and unloading small craft on trailers |
US5746192A (en) * | 1996-12-23 | 1998-05-05 | Gissel; Edward B. | Automatic bow retention device |
US5842684A (en) * | 1997-01-30 | 1998-12-01 | Milemarker, Inc. | Multi-speed winch |
US6357133B1 (en) * | 2000-05-31 | 2002-03-19 | Cheng-Hui Hsu | Flexible rule rewinding device |
US6550155B1 (en) * | 2002-02-05 | 2003-04-22 | Cheng-Hui Hsu | Tape rule with automatic blade extension mechanism |
US6916267B2 (en) * | 2003-03-31 | 2005-07-12 | Dp Manufacturing, Inc. | Method and apparatus for selective engagement and disengagement of a ring gear of a gear set |
-
2005
- 2005-07-14 IT IT000471A patent/ITBO20050471A1/en unknown
-
2006
- 2006-07-14 EP EP06795114A patent/EP1910128B1/en not_active Not-in-force
- 2006-07-14 WO PCT/IB2006/001941 patent/WO2007007181A1/en active Application Filing
- 2006-07-14 US US11/995,238 patent/US7832710B2/en active Active
- 2006-07-14 AU AU2006267995A patent/AU2006267995B2/en not_active Ceased
- 2006-07-14 AT AT06795114T patent/ATE470598T1/en not_active IP Right Cessation
- 2006-07-14 DE DE602006014835T patent/DE602006014835D1/en active Active
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3025455A1 (en) * | 1979-07-06 | 1981-01-15 | Fmc Corp | TOOL FOR ATTACHING A STRETCHED TAPE ABOUT AN OBJECT |
DE3337184A1 (en) * | 1982-10-15 | 1984-05-10 | Baumgarten, Nils Börje Valentin, 82078 Hassela | WINDING AND TENSIONING DEVICE FOR A LOAD STRAP |
US6017173A (en) * | 1997-11-13 | 2000-01-25 | Indiana Mills & Manufacturing, Inc. | Web retractor with release lever and tightening handle |
US20030059269A1 (en) * | 2001-09-24 | 2003-03-27 | Bosley James Michael | Cargo restraint apparatus |
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102010002052A1 (en) | 2009-06-15 | 2010-12-16 | Innoform Ag | Tensioning strap and fastening device for such a tension belt |
DE102010046854A1 (en) * | 2010-09-29 | 2012-03-29 | Frank Lütkemeier | Automatic lashing strap retractor for use in car to secure cargo, has main spring biased for actuating stopper such that brake is released and lashing strap is automatically received in belt receiving space |
EP2955804A1 (en) * | 2014-06-13 | 2015-12-16 | Greenlee Textron Inc. | Mounting assembly for attaching a product to a cable tray |
US10763649B2 (en) | 2014-06-13 | 2020-09-01 | Greenlee Tools, Inc. | Cable feeder |
DE102016009689A1 (en) | 2016-08-11 | 2018-02-15 | Hans Zeilinger | jack Castle |
Also Published As
Publication number | Publication date |
---|---|
ATE470598T1 (en) | 2010-06-15 |
EP1910128B1 (en) | 2010-06-09 |
AU2006267995B2 (en) | 2011-06-30 |
US7832710B2 (en) | 2010-11-16 |
AU2006267995A1 (en) | 2007-01-18 |
DE602006014835D1 (en) | 2010-07-22 |
ITBO20050471A1 (en) | 2007-01-15 |
US20080197227A1 (en) | 2008-08-21 |
EP1910128A1 (en) | 2008-04-16 |
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