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
  • B60P7/0861—Measuring or identifying the tension in the securing element
• • G—PHYSICS
  • G01—MEASURING; TESTING
  • G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
  • G01L5/00—Apparatus for, or methods of, measuring force, work, mechanical power, or torque, specially adapted for specific purposes
  • G01L5/04—Apparatus for, or methods of, measuring force, work, mechanical power, or torque, specially adapted for specific purposes for measuring tension in flexible members, e.g. ropes, cables, wires, threads, belts or bands
  • G01L5/06—Apparatus for, or methods of, measuring force, work, mechanical power, or torque, specially adapted for specific purposes for measuring tension in flexible members, e.g. ropes, cables, wires, threads, belts or bands using mechanical means

Definitions

• the present invention relates to a device for checking the tension in straps and other lashing members comprising strap-actuation fingers situated at a mutual distance from each other and a display part that indicates the tension in the strap.
• the main object of the present invention is primarily to solve, among other things, the above-mentioned problems as well as to provide a device that is simple to use and produce as well as that is reliable to utilize in a simple and efficient way.
• a device that essentially is characterized in that three strap-actuation fingers are mutually distributed along the strap extending transverse to the length extension of the strap, that the strap is arranged to extend alternately past said strap-actuation fingers so that a central movably arranged strap-actuation finger is situated on one side of the strap, while laterally positioned counter- supporting strap-actuation fingers are arranged to act on the opposite side of the strap, and that an arrestable turnable actuation arm is connected with said central strap-actuation finger, whereby detection and indication of acting tension in the strap are provided on a gauge indicator or another display part, depending on the motion impact and depression of the strap by said central actuation finger between the
• Fig. 1 shows the checking device as seen in perspective obliquely from the side without a strap
• Fig. 2 shows the checking device having a strap received therein and ready for checking
• Fig. 3 shows the checking device applied to the strap in a checking position
• Fig. 4 shows the checking device from its opposite side and with a detailed shown example of a indicating mechanism
• Fig. 5 shows a side view of the checking device in a non restrained position at a strap and in a partly sectioned state
• Fig. 6 shows the checking device in a restrained position and with a shown over- centre mechanism in an active position
• Fig. 7 shows a checking device with an actuation arm in an inactive position with a released ratchet
• Fig. 8 shows the checking device with the actuation arm in an active tightened position and the ratchet in an active lock position
• Fig. 9 shows a variant of a checking device with a strap in a received position and ready for checking
• Fig. 10 shows the checking device in a checking position
• Figs. 11-14 show an additional variant of a checking device, wherein
• Fig. 11 shows a side view of the device in its not yet set-up position
• Fig. 12 shows a view from above of the device
• Fig. 13 shows a side view of the device in a set-up position and where the stretching in a strap can be read on the device
• Fig. 13A shows the tension measuring device in question in side view with only its tensioning arm in the shown dotted position
• Fig. 14 shows in perspective the device ready for the application to and use at a strap for tension checking
• Fig. 15 shows in perspective the checking device in an applied position prepared for measuring
• Fig. 16 shows the checking device in an active measuring position on a strap.
• the present device should be pinched onto the strap in three points, by means of one finger on one side of the strap and fingers on the other side of the strap and placed laterally.
• an over-centre set spring By, e.g., an over-centre set spring, the finger is pressed on the underside of the strap against the restrained strap, and the deflection of the strap in relation to the two superjacent fingers that then occurs, or vice versa, i.e., one finger on the upper side of the strap and two fingers on the underside of the strap, is read from a dial mechanism.
• the measuring function is naturally not only possible by setting a spring into a fixed position by an over-centre locking, but this may also be accomplished by locking the tensioning arm by another type of ratchet .
• the invention according to a first embodiment example is comprised of a device 1 that is arranged and intended for the checking of the tension in straps 2 and other suitable lashing members for cargo and similar purposes.
• the device 1 comprises a number of strap-actuation fingers 3, 4, 5 situated at a mutual distance A, B, C from each other and a display part 6 that is arranged to indicate the current tension in the strap 2.
• Said three strap-actuation fingers 3-5 which are mutually distributed along the strap 2 and extending transverse 7 to the length extension 8 of the strap, have the central strap-actuation finger 5 thereof situated on the side I of the strap 2 that is opposite the side II of the strap 2 on which the other paired laterally positioned counter-supporting strap-actuation fingers 3, 4 are arranged to act.
• an arrestable turnable actuation arm 9 is connected with said central strap- actuation finger 5, whereby detection and indication of acting tension in the strap 2 are provided on a gauge indicator 10, depending on the motion impact and
• Said central strap-actuation finger 5 is movably actuatably carried by a swinging arm 11 and that is arranged to be received on the underside I of the strap, as seen along the lashing position of the strap, i.e., the side 2A of the strap 2 that is facing the object that is surrounded entirely or partly by said strap 2.
• Said strap-actuation finger 5 is connected with and projects perpendicularly from the free end 11A of the pivotably mounted arm 11.
• said swinging arm 11 is connected with a mechanical display part 12, which in the example shown, among other things, consists of a pointer 13 that, depending on the swinging impact of the swinging arm 11, is arranged to be actuated to move along a measuring scale
• actuation arm 9 is arranged to activate the tension checking by actuating the swinging arm 11 to be swung into a checking position K.
• Said spring 15, which preferably is formed of a helicoidal tension spring, acts between a fixed attachment 16 on the swinging arm 11 and a movable attachment 17 on the actuation arm 9 and which movable attachment 17 is adjustable.
• a holder 18 for the movable spring retainer 17 is connected with the actuation arm 9 via an adjustable screw mechanism 19.
• a ratchet 20 for the locking of the actuation arm 9 may be formed of an over- centre mechanism or another ratchet device, such as a manually actuatably lockable link lever mechanism 120.
• the ratchet 20 in the form of an over- centre mechanism may be understood from the example described above and shown in the drawings, while a ratchet 120 in the form of a link lever mechanism may be formed as shown in Figs . 7 and 8.
• Such a ratchet 120 formed as a link lever mechanism may be formed by the actuation arm 9 working as a tensioning arm having been provided with a protuberance 21 in which a pivot rivet 25 is received to form
• a ratchet plate 22 which preferably is produced from a resilient material.
• a rivet 23 is fixed, which in the set-up checking position K is hooked on into a hole 24 in a base frame 26.
• the laterally positioned strap-actuation fingers 3-4 project laterally 7, preferably in a common direction 27 from a base frame 26 formed as a body while the central strap-actuation finger 5 is supported by said body 26 via said swinging arm 11 that is journalled to the body 26 via a swinging shaft 28.
• Said device 1 is arranged to be temporary or permanently attachable to the strap 2, as is shown in the drawings .
• the embodiment example of the device 101 shown in Fig. 9 and Fig. 10 is equal as according to the above, although the strap 102 now is drawn reversely around three actuation fingers 103, 104 and 105 that extend laterally 107 out from a common body 126 transverse to the length extension 108 of the strap 102, i.e., that the central strap-actuation finger 105 is situated on the upper side CII of the strap 102 and the two laterally positioned counter- supporting strap-actuation fingers 103, 104 are situated on the underside CI of the strap 102. Also these three actuation fingers 103, 104 and 105 are situated at a mutual distance CA, CB, CC from each other.
• the swinging arm 111 is actuated to be swung around the swinging shaft 128 thereof and the pointer 113 is actuated to turn into the correct value on the measuring scale 114 of a display part 106 in the form of a gauge indicator 110 and be positioned at the intended achieved measured value .
• a spring 115 is arranged, and one of the attachments 116, 117 is movably adjustable by means of a holder 118 and a screw mechanism 119.
• the pointer 113 stops at the intended measured value on the measuring scale 114 after the spring 115 having actuated the swinging arm 111 to be swung around the swinging shaft 128 and actuated the pointer 113 to be turned into the correct measured value and stop there as long as the actuation arm 109 is held in the turned-up checking position CK.
• the strap 2 In the unloaded position, the strap 2 extends essentially straight through and between said fingers 3, 5, 4, i.e., inside two of the fingers 3, 4 on a common side and inside the other finger 5 situated on the opposite side of the strap 2.
• Embodiment examples of the device 201 that are shown in the drawings in Fig. 11-Fig. 16 are similar to the devices described above, although the central actuation arm, by the end 209A thereof facing the strap 202, forms a supporting part for an actuation finger, which, as in other embodiment examples of the invention, also is formed of a rolling member 205. More precisely, a central strap-actuation finger is formed of a rolling member 205 situated at the outer end 209A of the spring-force actuatable 215 actuation arm 209 facing the strap 202, and the actuation arm 209 is turnably
• Said rolling member 205 is more
• a pivotably mounted pointer 213 is actuatable by said rolling member 205, and which, depending on the swinging impact of the actuation arm 209 and the motion impact of the rolling member 205, is arranged to move along a measuring scale 214.
• FIG. 11A there is shown how the pointer 213, which is spring-force actuated by a tensioning arm spring 275 that is threaded onto the bearing shaft 276 of the pointer and, by the respective free spring legs 275A, 275B thereof, acts against each a holder-on 278, 279 of the base plate 226 and on the pointer 213, respectively, is actuated upon the swinging of the actuation arm 209.
• An extension 280 of the shaft 277 of the rolling member 205 affects the pointer 213 to be swung upon contact between the same, i.e., between the shaft extension 280 and the holder-on 279.
• the distance CCA between the two strap- actuation fingers 203, 204 situated on a common side CCI of a strap 202 is constant, while the distance CCB, CCC between the central actuation finger 205 on the opposite side CCII of the strap and the respective laterally positioned actuation finger 203 and 204, respectively, is variable .
• a spring 215 is arranged, which is connected with the swinging bearing shaft 217 by one end 215A thereof and with a fixed or movably adjustable attachment 251, 252 by its opposite end 215B.
• the function is according to the following:
• the tensioning arm 209 is pulled into the upright position, Fig. 13A, the spherical runner 205 is pressed against the tensioned strap by means of the spring 215 and the elongate hole 250 in the tensioning arm 209.
• the pointer 213 is then lifted corresponding to the extension of the spring thanks to actuation by the projecting part 280 of the shaft 277 of the runner 205.
• the tensioning arm is raised approx. 30°.
• the deflection fingers are introduced on the underside of the strap up to stop from one side of the strap.
• the roll-off ball in the end portion of the tensioning arm is now above and in the middle of the strap.
• the tensioning arm is then smoothly brought to its end stop and the grip of the tensioning arm is released.
• the pointer now points at a marking on the dial, which by a figure (x 100 daN) indicates the force by which the strap is set-up. It is then possible to repeat the latest action for confirming the measurement.
• the measurement only gives an indication of the approximate clamping force. Variations arise due to different strap types and free strap length, etc.
• Figs. 15 and 16 show in perspective the device in the prepared measuring position and in the measuring position, respectively, with the actuation arm 209 thereof in the turned-down position ready for

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• Engineering & Computer Science (AREA)
• Transportation (AREA)
• Mechanical Engineering (AREA)
• Physics & Mathematics (AREA)
• General Physics & Mathematics (AREA)
• Buckles (AREA)

Applications Claiming Priority (3)

Publications (2)

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Family Applications (1)

Country Status (3)

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Family Cites Families (12)

• 2010
  • 2010-10-07 SE SE1051051A patent/SE535527C2/sv unknown
• 2011
  • 2011-04-14 EP EP11769178.2A patent/EP2558833A4/de not_active Withdrawn
  • 2011-04-14 WO PCT/SE2011/050455 patent/WO2011129761A1/en active Application Filing

Non-Patent Citations (1)

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