EP0542340A1 - Aufwickler mit Rückzugfeder und kontrollierbarer Verriegelungsvorrichtung - Google Patents

Aufwickler mit Rückzugfeder und kontrollierbarer Verriegelungsvorrichtung Download PDF

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Publication number
EP0542340A1
EP0542340A1 EP92203364A EP92203364A EP0542340A1 EP 0542340 A1 EP0542340 A1 EP 0542340A1 EP 92203364 A EP92203364 A EP 92203364A EP 92203364 A EP92203364 A EP 92203364A EP 0542340 A1 EP0542340 A1 EP 0542340A1
Authority
EP
European Patent Office
Prior art keywords
blocking
toothing
blocking member
crown
cam
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
Application number
EP92203364A
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English (en)
French (fr)
Other versions
EP0542340B1 (de
Inventor
Luciano Borettaz
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.)
FIPH Srl
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FIPH Srl
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 FIPH Srl filed Critical FIPH Srl
Publication of EP0542340A1 publication Critical patent/EP0542340A1/de
Application granted granted Critical
Publication of EP0542340B1 publication Critical patent/EP0542340B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H75/00—Storing webs, tapes, or filamentary material, e.g. on reels
    • B65H75/02—Cores, formers, supports, or holders for coiled, wound, or folded material, e.g. reels, spindles, bobbins, cop tubes, cans, mandrels or chucks
    • B65H75/34—Cores, formers, supports, or holders for coiled, wound, or folded material, e.g. reels, spindles, bobbins, cop tubes, cans, mandrels or chucks specially adapted or mounted for storing and repeatedly paying-out and re-storing lengths of material provided for particular purposes, e.g. anchored hoses, power cables
    • B65H75/38—Cores, formers, supports, or holders for coiled, wound, or folded material, e.g. reels, spindles, bobbins, cop tubes, cans, mandrels or chucks specially adapted or mounted for storing and repeatedly paying-out and re-storing lengths of material provided for particular purposes, e.g. anchored hoses, power cables involving the use of a core or former internal to, and supporting, a stored package of material
    • B65H75/44—Constructional details
    • B65H75/4418—Arrangements for stopping winding or unwinding; Arrangements for releasing the stop means
    • B65H75/4428—Arrangements for stopping winding or unwinding; Arrangements for releasing the stop means acting on the reel or on a reel blocking mechanism
    • B65H75/4434—Arrangements for stopping winding or unwinding; Arrangements for releasing the stop means acting on the reel or on a reel blocking mechanism actuated by pulling on or imparting an inclination to the material
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H75/00—Storing webs, tapes, or filamentary material, e.g. on reels
    • B65H75/02—Cores, formers, supports, or holders for coiled, wound, or folded material, e.g. reels, spindles, bobbins, cop tubes, cans, mandrels or chucks
    • B65H75/34—Cores, formers, supports, or holders for coiled, wound, or folded material, e.g. reels, spindles, bobbins, cop tubes, cans, mandrels or chucks specially adapted or mounted for storing and repeatedly paying-out and re-storing lengths of material provided for particular purposes, e.g. anchored hoses, power cables
    • B65H75/38—Cores, formers, supports, or holders for coiled, wound, or folded material, e.g. reels, spindles, bobbins, cop tubes, cans, mandrels or chucks specially adapted or mounted for storing and repeatedly paying-out and re-storing lengths of material provided for particular purposes, e.g. anchored hoses, power cables involving the use of a core or former internal to, and supporting, a stored package of material
    • B65H75/44—Constructional details
    • B65H75/4418—Arrangements for stopping winding or unwinding; Arrangements for releasing the stop means
    • B65H75/4428—Arrangements for stopping winding or unwinding; Arrangements for releasing the stop means acting on the reel or on a reel blocking mechanism
    • B65H75/4431—Manual stop or release button

Definitions

  • the present invention relates to a controllable blocking device for a reel with return spring.
  • the reels are widely used to contain electric cables, flexible hoses or other flexible members, which are wound inside the reel, can be pulled out and, in cases where the reel is provided with 'a return spring, can be rewound in the reel by the action of the spring included therein, which is loaded by effect of the extraction of the flexible member and then controls the rewinding.
  • these reels hold the flexible member which has been extracted therefrom under permanent tension, and then they recall it as the traction exerted on this flexible member is released.
  • this behavior is appropriate for certain applications, while for other applications it is required that the extracted flexible member is not recalled, even if the traction exerted on it ends, and this until one does not gives a special command to cause the winding.
  • reels are known in which winding is prevented by a blocking device and it is started by a short successive action of extraction of the flexible member, having the effect of releasing the blocking device.
  • the user is warned of the release of the blocking by a trigger.
  • these reels can be dangerous, because the short successive action of extraction can be accidental and cause an unwanted and untimely winding, all the more so since, under certain conditions, an extremely reduced traction is sufficient to cause the release of the blocking.
  • the trigger that gives warning the establishment of the winding condition can easily go unnoticed in a noisy environment.
  • the reels of known types have a predetermined behavior which can in no way be modified when the application requirements of the reel are modified.
  • the main object of the present invention is to propose a blocking device for a reel with return spring, which must exhibit the behavior described above while requiring, for the release, the extraction of a relatively large length of the flexible member. , which is sufficient to exclude, for almost all accidental actions, the possibility of causing an untimely release, while means must be provided to surely avoid the impossibility of a successive extraction sufficient to cause the voluntary release of the blockage .
  • another object of the invention is to provide the reel with a control selector making it possible to modify at will the behavior of the reel, by replacing the behavior described, which consists of a blocking and an alternating activation of the winding, a behavior which consists in the continuous rewinding of the flexible member, or even a behavior which consists in the absence of any rewinding until an action to this effect does not is successively performed on the command selector; so that the reel can be adjusted to take account of different application conditions.
  • a reel comprising a winding drum with a return spring, mounted rotating in a support structure, and a controllable device for blocking the winding
  • said controllable device blocking device comprises a crown with internal toothing connected to the winding drum, said toothing developing over the entire thickness of the crown along the greater part of the latter, but being limited to part of this thickness the along an arc of inactivity preset; an oval-shaped locking member, provided with external toothing on its two end portions of greater curvature, one of these toothing extending on one side over a portion of the portion of curvature which is less blocking member, and the other toothing being limited to part of the thickness of the blocking member, corresponding to the part of the thickness over which the toothing of said crown with internal toothing develops along said arc d 'inactivity; said mortar blocking member, hollowed out in one of its faces, a profiled cam comprising, on each side of the blocking member, a first portion developing radially as far as close to the
  • the take-up drum connected to said internal gear ring, allows the extraction of a flexible member wound on the drum, but, when the extraction ends, it cannot rewind under the action of the return spring, because it is stopped by the blocking member. But if a successive extraction is made of a length which corresponds to at least half of the perimeter of the blocking member, the latter reverses its position, after which it no longer opposes rewinding, which is therefore carried out by the return spring, and this until the complete winding or until, by a subsequent extraction of the flexible member, the position of the locking member is again reversed.
  • the action of the blocking member cannot be exerted when it is in correspondence with the arc of inactivity of the crown with internal toothing, along which the toothing extends only over part of its thickness. Therefore, by adequately establishing the length of this arc of inactivity of the ring gear, as well as its position relative to the point at which the flexible member is anchored to the winding drum, it can be ensured that the blocking can never take place when the length of the flexible member still received in the reel is less than half the perimeter of the blocking member, so that the possibility that a successive extraction, necessary to voluntarily release the blockage, be prevented.
  • the device further comprises a stop member capable of being moved by a control selector between a position in which it does not interfere with the movement of the blocking member, and a position in which it stops the blocking member during its movement, preventing the reversal of its position.
  • the reel will then authorize the extraction of the flexible member which it contains, but it will be able to rewind it as and as the traction exerted on the flexible member is released.
  • the reel has the possibility of explaining, according to the desire of the user, three different behaviors, and it can be adapted each time to the requirements of any particular application.
  • the reel shown in Figure 1 includes a support bracket 1, generally intended to be fixed to a wall or other support, which carries by means of orientation pivots 2 a casing 3 provided with a flow mouth 4.
  • a winding drum 6 In inside the envelope 3 is mounted, rotatably, a winding drum 6 which is under the action of a return spring 5.
  • a flexible member such as a cable, a pipe or the like, the free end of which 7 leaves the envelope through the flow mouth 4.
  • the flexible member 7 can be extracted by pulling it along arrow E, thus the unwinding of the drum 6, which rotates d 'a corresponding way and loads the return spring 5. This seeks to rotate the winding drum 6 in the opposite direction, and therefore to recall the flexible member 7 in the opposite direction to arrow E.
  • control selector 8 On the casing 3 is mounted a control selector 8 which can be rotated relative to a fixed mark 9 to achieve, as will be described below, the different behaviors which are made possible by the reel according to the invention.
  • These latter parts are represented by broken lines because in reality they are located on the side of the reel which is opposite to that shown in FIG. 1.
  • a crown 10 with internal toothing which, seen from the side of the reel opposite to that seen in FIG. 1, is shown in FIG. 2.
  • the crown 10 with internal toothing can be produced in one piece with one side of the take-up drum 6.
  • the crown 10 has along its entire periphery an internal toothing 11, but along an arc of inactivity, indicates 'in Figure 2 by AB, the toothing 11 does not extend, as in the other parts of the crown 10, over the entire thickness which is intended for it, but only over part of this thickness, while the part remaining of this thickness is occupied by a region 12 not toothed (see also Figure 9).
  • an oscillating lever 14 which, at the opposite end, carries a pivot 15.
  • the lever 14 is indicated by lines with dots and lines assuming to have carried it for allow observation of the underlying parts.
  • the lever 14 is under the action of a spring, represented in the drawing only by the arrow M which shows the direction of action, and which tends to push the pivot 15 carried by the lever 14 towards the teeth 11 of the crown 10.
  • an oval-shaped blocking member Inside the toothing 11 of the crown 10 is disposed an oval-shaped blocking member, shown isolated in FIG. 7.
  • the parts of smaller curvature of the blocking member 16 have a radius substantially corresponding to the internal radius. of the toothing 11 of the crown 10.
  • the oval locking member 16 has, on one of its end portions of greater curvature, an external toothing 17 capable of engaging with the internal toothing 11 of the crown 10, and this toothing 17 extends over the entire thickness of the blocking member 16 (see FIG. 8) and is extended by a part 18 along a short section of the part of smaller curvature of the oval blocking member .
  • the locking member 16 On its part of greater curvature opposite to that which we have now considered, the locking member 16 has an external toothing 19 which extends only over a part of its thickness, and more precisely over the part which corresponds to the thickness part of the crown 10 on which the internal toothing 11 is continuous (see FIG. 9).
  • the blocking member 16 has, hollowed out in one of its faces, a cam in which the pivot 15 of the lever 14 engages.
  • This cam has, on each side of the center 0 of the blocking member 16, a substantially radial 20 or 20 ', which extends as far as close to the periphery of the blocking member, an arcuate part 21 or 21' which follows the periphery of the blocking member, and a connecting part 22 or 22 'forming an angle, which connects the end of the arcuate part 21 or 21 'with a region of the radial part 20 or 20', close to the center 0.
  • the locking member 16 is shown in its all, but only its parts which are active in the condition each time considered are provided with reference figures.
  • the locking member 16 engages the toothing 11 by means of its teeth 18, and the pivot 15 is located at the end of the arcuate part 21 'of the cam, opposite to the 'end of the radial part 20'; it therefore prevents either the locking member 16 than the crown 10 (and therefore the winding drum 6) from rotating in the opposite direction to the arrow E. A rewinding is therefore not possible: the condition shown is a blocking condition.
  • a stop 23 is further provided supported by a lever 24 connected to the control selector 8.
  • the stop 23 can be moved, by actuating the selector 8, between an inactive position, shown in solid lines in Figures 2 to 5, and an activity condition, shown in dotted and dashed lines in Figures 2 to 5 and in solid lines in Figure 6.
  • the stop 23 Until the stop 23 is in its inactive position, it does not interfere with the movements of the blocking member 16, and the latter behaves in the manner that has been described.
  • the stop 23 is moved to its activity position according to FIG. 6, it stops the blocking member 16 at the start of its movement and it does not allow it to reach the positions according to FIGS. 4 and 5, and therefore to reverse its own position.
  • FIG. 6 shows only the case in which the stop 23 prevents the passage of the blocking member 16 from the blocking condition to the condition of releasing the blocking, but it is quite clear that the behavior of the stop 23 is identical to prevent the passage of the blocking member 16 from the condition of release of the blockage to the condition of blocking.
  • the stop 23 is activated, the blocking member was in the blocking condition according to FIG. 2, it follows that the flexible member 7 can be freely extracted, on one or more occasions , but that no rewinding can take place except over a short portion.
  • the reel behaves like a freewheel which allows the extraction but not the rewinding of the flexible member 7. This condition continues until, by operating in the opposite direction the control selector 8, the stop 23 is again moved to its inactive position, after which the reversal of the position of the blocking member 16, and therefore the release of the blocking, results again authorized.
  • the blocking member 16 was in the condition of release of the blocking according to FIG. 3, it follows that the flexible member can be freely extracted, in one or more times, but the rewinding takes place each time the traction exerted on the flexible member 7 is released.
  • the reel behaves like a reel provided with return spring but not with a locking member. This condition continues until, by operating the control selector 8 in the opposite direction, the stop 23 is again moved to its inactive position, after which the reversal of the position of the locking member 16 , and therefore the new activation of the blocking, results authorized again.
  • the reel provided with the locking device according to the invention can be instantly adapted either to different application requirements, or also to specific conditions of use which may arise temporarily in each application.
  • the selection device 8, 9, 23, 24 can be omitted.
  • the dimensions and the proportions of the reel and, consequently, of its blocking device can be considerably modified according to the nature, the dimensions and the length of the flexible member 7 wound.
  • the conformation of the casing 3 and, in general, of the structure of the reel can be modified without introducing substantial modifications in the blocking device.
  • the cam hollowed out in the blocking member 16 has been shown to be symmetrical with respect to the center 0, but for practical reasons it could receive an asymmetrical shape. Also other modifications are possible in the area of claims.

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  • Storing, Repeated Paying-Out, And Re-Storing Of Elongated Articles (AREA)
EP92203364A 1991-11-15 1992-11-02 Aufwickler mit Rückzugfeder und kontrollierbarer Verriegelungsvorrichtung Expired - Lifetime EP0542340B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
ITTO910882 1991-11-15
ITTO910882A IT1250339B (it) 1991-11-15 1991-11-15 Dispositivo di bloccaggio controllabile per un avvolgitore con molla di riavvolgimento.

Publications (2)

Publication Number Publication Date
EP0542340A1 true EP0542340A1 (de) 1993-05-19
EP0542340B1 EP0542340B1 (de) 1995-05-24

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ID=11409721

Family Applications (1)

Application Number Title Priority Date Filing Date
EP92203364A Expired - Lifetime EP0542340B1 (de) 1991-11-15 1992-11-02 Aufwickler mit Rückzugfeder und kontrollierbarer Verriegelungsvorrichtung

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Country Link
EP (1) EP0542340B1 (de)
DE (1) DE69202683T2 (de)
IT (1) IT1250339B (de)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111620154A (zh) * 2020-06-02 2020-09-04 贵州电网有限责任公司 一种便于收纳的压板隔离装置

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10356736B4 (de) * 2003-12-02 2016-02-18 Athos Holding Gmbh Kabeltrommel
DE102005020019B4 (de) * 2004-05-11 2007-08-16 Pfannenberg Gmbh Kühlanordnung und Kühlgerät
DE102012002103A1 (de) * 2012-02-06 2013-08-08 Kiekert Ag Lagereinrichtung mit Kabelführung für ein Elektrofahrzeug

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2530773A (en) * 1947-01-31 1950-11-21 Benjamin Reel Products Inc Reel

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2530773A (en) * 1947-01-31 1950-11-21 Benjamin Reel Products Inc Reel

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
TECHNICAL DIGEST - WESTERN ELECTRIC. ANNEE 1968/1975: 2EME EXEMPLAIRE B-00-120 no. 56, Octobre 1979, NEW YORK US pages 5 - 6 R.S. BROWN ET AL. 'CORD REEL LATCH MECHANISM' *

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111620154A (zh) * 2020-06-02 2020-09-04 贵州电网有限责任公司 一种便于收纳的压板隔离装置
CN111620154B (zh) * 2020-06-02 2021-09-24 贵州电网有限责任公司 一种便于收纳的压板隔离装置

Also Published As

Publication number Publication date
ITTO910882A1 (it) 1993-05-16
DE69202683T2 (de) 1995-12-21
IT1250339B (it) 1995-04-07
ITTO910882A0 (it) 1991-11-15
DE69202683D1 (de) 1995-06-29
EP0542340B1 (de) 1995-05-24

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