WO2017158481A1 - Laisse rétractable perfectionnée - Google Patents

Laisse rétractable perfectionnée Download PDF

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Publication number
WO2017158481A1
WO2017158481A1 PCT/IB2017/051413 IB2017051413W WO2017158481A1 WO 2017158481 A1 WO2017158481 A1 WO 2017158481A1 IB 2017051413 W IB2017051413 W IB 2017051413W WO 2017158481 A1 WO2017158481 A1 WO 2017158481A1
Authority
WO
WIPO (PCT)
Prior art keywords
spool
leash
shaft
blocking
rotation
Prior art date
Application number
PCT/IB2017/051413
Other languages
English (en)
Inventor
Marco Magagnini
Fabrizio FILICORI
Original Assignee
Marco Magagnini
Filicori Fabrizio
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 Marco Magagnini, Filicori Fabrizio filed Critical Marco Magagnini
Publication of WO2017158481A1 publication Critical patent/WO2017158481A1/fr

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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
    • B65H75/4436—Arrangements for yieldably braking the reel or the material for moderating speed of winding or unwinding
    • B65H75/4442—Arrangements for yieldably braking the reel or the material for moderating speed of winding or unwinding acting on the reel
    • B65H75/4447—Arrangements for yieldably braking the reel or the material for moderating speed of winding or unwinding acting on the reel centrifugally
    • A—HUMAN NECESSITIES
    • A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01K—ANIMAL HUSBANDRY; AVICULTURE; APICULTURE; PISCICULTURE; FISHING; REARING OR BREEDING ANIMALS, NOT OTHERWISE PROVIDED FOR; NEW BREEDS OF ANIMALS
    • A01K27/00—Leads or collars, e.g. for dogs
    • A01K27/003—Leads, leashes
    • A01K27/004—Retractable leashes
    • 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
    • B65H75/40—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 mobile or transportable
    • B65H75/406—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 mobile or transportable hand-held during use
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2701/00—Handled material; Storage means
    • B65H2701/30—Handled filamentary material
    • B65H2701/35—Ropes, lines

Definitions

  • the present invention relates to a retractable leash for domestic animals in particular, but not exclusively, dogs .
  • the leashes are largely used for walking the domestic animals, in particular dogs.
  • the leash is grasped at an end by a user, another end of the leash is fixed to a collar, or a harness, that is previously applied to the dog.
  • a collar or a harness
  • the freedom of movement of the dog is limited and, therefore, it avoids, in particular, that the dog can move away too much from the owner, or a different person who walks the dog.
  • the new leashes usually known as retractable leashes, comprise essentially a main body, generally made of plastic material, provided with an handle at which a user grasps the leash.
  • a spool that is able to rotate about a rotation axis, is usually housed with the main body. More precisely, around the spool a tape, or a leash, is wound having an end fixed to the spool, and another end to the collar, or a harness, of the dog, as above described. During the walk, the greater is the relative velocity between the dog and the user who grasps the leash, the more leash is unwound from the spool.
  • a spring usually a spiral torsion spring, is mounted within the main body, and arranged in such a way to oppose the unwinding of the leash from the spool, i.e. to oppose the free rotation of the spool. Examples of similar leashes are described in US5377626 and US6845736.
  • the retractable leashes are, furthermore, normally provided with a brake, which is operated by a padrone del cane acting on a button mounted on the main body.
  • the owner is not always able to immediately react to a sudden jerk of the animal, in particular, operating the brake button. Consequently, particularly in the case of big dogs, if the dog suddenly speeds up, for example because another dog, or a different animal, rouses its interest, it can happen, not only, that the dog can cause damage to other people, or animals, or to itself, but that can also cause physical damage to the owner, in particular causing him/her to fall, or trauma to the arms.
  • Braking devices of magnetic type for retractable leashes are known in which the braking device is operated when the centrifugal force exceeds the magnetic force of the magnet.
  • these solutions are not efficient, in particular because they are not capable of quickly react, between when the event happens and the magnetic braking device reacts, for braking the spool, a lot of seconds can go by due to the magnetic inertia.
  • a retractable leash comprising a spool that is mounted, free to rotate about a rotation axis, and around which an end of the tape is fixed with the other end constrained to the collar of the animal.
  • a brake device is also provided for blocking the rotation of the spool when the centrifugal force exceeds a determined value. More precisely, the brake device provides a blocking element that is maintained by a spring in a rest position in which it does not block the rotation of the spool.
  • the blocking element when the rotation speed of the spool exceeds a predetermined value per cui the centrifugal force wins the spring elastic force, the blocking element, from the rest position, rotates about an axis parallel to the rotation axis of the spool up to dispose an end in a blocking position that impedes the rotation of the spool.
  • both the brake device of US2014263799 and that of WO2005/080149 are structurally complex, heavy, and do not seem to be able to assure the necessary safety conditions both for the user who uses the leash and for the domestic animal on the leash.
  • an object of the present invention to provide a retractable leash that is able to overcome the above described drawbacks of the retractable leashes of prior art.
  • a retractable leash comprising:
  • a spool rotatably mounted inside the container body about a rotation axis, around said spool being wound, in use, a leash having a predetermined total length and that is provided with a first end fixed to the spool and a second end suitable to be engaged to a collar, or a harness ;
  • a brake device arranged to dispose the spool in a braking configuration when the centrifugal force generated by the rotation of the spool exceeds a predetermined value, in said braking configuration the brake device arranged to brake the unwinding of the leash from the spool;
  • said brake device comprises: - a stator body arranged coaxially to the spool and arranged to define a seat, said stator body being integral to said container body and provided with a projecting member;
  • a rotor body arranged to be positioned, in use, in said seat of said stator body, free to rotate coaxially to said spool about said rotation axis, said rotor body provided with:
  • a resilient member arranged to engage the blocking pin to the rotor body, said resilient member exerting on the blocking pin, a predetermined elastic force opposite to said centrifugal force, said blocking pin arranged to translate radially to the rotor body guided by the housing from a rest position, in which it is arranged when the predetermined elastic force is greater than said centrifugal force and in which said rotor body is arranged to rotate integrally with said spool, to a blocking position, in which the blocking pin is arranged to engage the projecting member of the stator body in order to brake the rotation of the spool about the rotation axis, when the centrifugal force exceeds the predetermined elastic force.
  • the housing is made in the rotor body.
  • the housing has an inlet/exit mouth facing towards the stator body and through which the blocking pin is arranged to enter/exit said seat said housing, for moving from the rest position to the blocking position, and vice versa.
  • the retractable leash furthermore, comprises:
  • a shaft arranged coaxially to the rotation axis and comprising a first tubular portion, integral to said spool, and a second portion, which, instead, is not integral to said spool;
  • an actuation member arranged to engage the second portion of said shaft to the spool, once the spool has made a predetermined number of turns about the rotation axis, in the above disclosed braking configuration, ;
  • a retractable leash comprises:
  • a spool mounted inside of said container body about a rotation axis, su said spool being wound, in use, a leash having a first end fixed to the spool and a second end suitable to be engaged to a collar, or a harness;
  • a shaft arranged coaxially to said rotation axis and comprising a first tubular portion, integral to said spool, and a second portion that, instead, is not integral to said spool;
  • a brake device associated to said spool arranged to brake the unwinding of said leash from said spool when the centrifugal force Fc generated by the rotation of said spool exceeds a predetermined value Fc* in such a way to obtain a braking configuration
  • said leash furthermore comprising:
  • an actuation member arranged to actuate la rotation of said second portion of said shaft about said rotation axis once said spool has made a predetermined number of turns about said rotation axis, in said braking configuration
  • an additional brake device associated to said second portion of said shaft and arranged to brake the rotation of said second portion of said shaft about said rotation axis .
  • the actuation member is a return resilient member arranged to resiliently engage said second portion of the shaft to the spool, said return resilient member having a first end that is fixed to the spool and a second end that is fixed to the second portion of the shaft and arranged to make the second portion of the shaft integral to the spool, when it reaches its maximum length, whereby it causes the second portion of the shaft to rotate about the rotation axis.
  • the return resilient member can be housed within a cylindrical opening provided in the spool and arranged coaxially to the rotation axis.
  • the additional brake device provides:
  • an engagement member arranged to engage the base support to the second portion of the shaft, said engagement member configured in such a way to allow the second portion of the shaft to rotate with respect to the base support;
  • the engagement member comprises a screw arranged to engage in a threaded hole made in said base support, said screw being provided with a locking head, which is arranged, in use, in an axial cavity made in said second portion of said shaft, said locking head arranged to lock an engaging portion of said cavity against the base support.
  • a retractable leash comprises:
  • a spool mounted inside of said container body about a rotation axis, su said spool being wound, in use, a leash having a first end that is fixed to said spool and a second end suitable to be engaged to a collar, or a harness, said spool being provided with a plurality of laterally protruding portions; - a blocking device arranged to block the rotation of said spool, said blocking device comprising a button on which a user acts for operating said blocking device; and wherein said blocking device comprises an actuation carriage operatively connected to said button, said actuation carriage, when operated by said user, being arranged to translate along a direction that is substantially tangential to said spool, between an advanced position and a retracted position, in said advanced position, said actuation carriage arranged to cause a blocking tooth to rotate about a rotation axis in order to move it from a disengagement position to a blocking position, where it is arranged to interfere with a protruding portion of said plurality,
  • FIG. 1 diagrammatically shows in a perspective view, a first embodiment of a retractable leash, according to the invention, in operative conditions;
  • FIG. 2A diagrammatically shows in a section view, the retractable leash of figure 1;
  • - Fig. 2B diagrammatically shows in a section view an alternative embodiment of the retractable leash of figure 2A;
  • FIG. 3 and 4 show in section views, 2 different alternative embodiments of the brake device of which the retractable leash of figure 2A is equipped;
  • FIG. 5 shows the retractable leash of figure 2A in a exploded perspective view
  • FIG. 6 shows in a section view another alternative embodiment of the leash of figure 2A
  • FIG. 7 shows the retractable leash of figure 5 in an exploded perspective view
  • FIG. 8 to 10 diagrammatically show, in plant views, the retractable leash, according to the invention, in an open configuration, i.e. with half container body that is not shown, in order to show some technical aspects of the invention.
  • a retractable leash 1 comprises a container body 10, which provides a handle 15.
  • a spool 20 is arranged inside the container body 10, capable of rotating about a rotation axis 120.
  • a leash, or a tape, 30 is wound that has a first end 30a fixed to the spool 20, for example at a cavity 22, and a second end 30b suitable to be engaged to a collar, or a harness, that is applied to a domestic animal, e.g. a dog, a cat, etc.
  • the leash 1, according to the invention furthermore comprises a brake device 50 associated to the spool 20.
  • the brake device 50 is arranged to brake the unwinding of the leash 30 from the spool 20 when the centrifugal force, which is caused by the rotation of the spool 20, exceeds a predetermined value, in order to avoid that the domestic animal can suddenly, and in an uncontrolled way, moves away from the user who keeps the dog on the leash.
  • the brake device 50 comprises a stator body 51 arranged coaxially to the spool 20, and defining a seat 54 (figures 2A and 2B) . More precisely, the stator body 51 can be a body unconnected to the container body 10 but integral to it, or, differently, it can be integrated in the container body 10.
  • the stator body 51 in particular at an internal surface 52, provides a projecting member, or tooth, 53.
  • a rotor body 55 is, furthermore, provided, also this arranged coaxially to the spool 20, and arranged to be housed, in use, in the seat 54 of the stator body 51, free to rotate with respect to it.
  • the rotor body 55 and the spool 20 are mounted on a same rotation shaft 60, which is integral to the stator body 51.
  • the fastening of shaft 60 to stator body 51 can be obtained by using a single mould comprising both the components (figures 2A and 2B) , or by means of an engagement member, e.g.
  • the spool 20 provides an axial cavity 25 arranged to house, in use, a return resilient member 70, in particular a spiral torsion spring, or a torsion spring, diagrammatically shown in the figures 2A and 2B with a broken line. More in detail, the return resilient member 70 provides an end 71 that is engaged to the spool 20, in particular at a slot 21 provided in the body of the spool 20, and arranged to exert a recall action on the spool 20 in order to oppose the unwinding of the leash 30. As shown in the figures 2 and 5, the axial cavity 25 can be associated to a lid 170, which provides an aperture 175 that is passed through, in use, by the shaft 60, in such a way that its free end can engage the container body 10.
  • the leash 1 comprises, furthermore, a rotor body 55.
  • This provides a housing 58, within which, in use, a blocking pin 56 is housed. More in particular, the housing 58 is arranged along a radial direction, and a resilient member 57 is provided arranged to engage the blocking pin 56 to the rotor body 55.
  • the resilient member 57 can be a shaped spring (figure 3) having an end fixed to the blocking pin 56, and another end fixed in a point of the rotor body 55, or a spring radially oriented, in particular positioned within the housing 58, and having an end fixed to the blocking pin 56, and the other end fixed to another component of the leash 1, for example the shaft 60 (figure 4) .
  • the resilient member 57 is arranged to exert on blocking pin 56, a predetermined elastic force Fe, which opposes the centrifugal force Fc.
  • the radial component of the elastic force is opposed to the centrifugal force
  • the elastic force has only a radial component, and therefore, it is this that is opposed to the centrifugal force.
  • the centrifugal force Fc generated by the rotation of the spool 20
  • the blocking pin 56 not retained anymore by the return resilient member 70
  • the rotor body 55 becomes integral to the stator body 51 and, therefore, to the container body 10. Consequently, the rotation of the spool 20, and of the other components integral to it, about the rotation axis 120, is impeded and, therefore, the unwind of the leash 30 from the spool 20 is braked.
  • the operation of the leash 1, provides that, in a first operative configuration corresponding to the case in which the domestic animal that is kept on the leash, moves with a low relative velocity with respect to the user who grasps the leash 1, the spool 20, the shaft 60 and the rotor body 55 rotate all together about axis 120.
  • the blocking pin 56 is arranged in the rest position, where it is completely arranged within the rotor body 55, i.e. it does not engage with the projecting member 53.
  • the housing 58 provides an inlet and outlet mouth 59 through which the blocking pin 56 is arranged to enter and to exit the housing 58, during the movement between the rest position and the blocking position, and vice versa. In this way, the radial translation of the pin 56 between the rest position and the blocking position, and vice versa, is guided by housing 58.
  • At least one friction disc 85 is provided that is made of a friction material, e.g. rubber, or felt, interposed between the rotor body 55 and the spool 20.
  • the, or each, friction disc 85 allows to gradually brake the rotation of the spool 20. More precisely, when the rotation of rotor body 55 is stopped, due to the engagement of the blocking pin 56 with the projecting member 53, the braking force is transmitted by means of the, or each, friction disc 85, from rotor body 55 to spool 20. In this way, the friction disc 85 adsorb, in part, the impulse exerted on leash 1 by the domestic animal and, therefore, the generated impulse is not completely transferred to the user arm.
  • the push group 12 comprises a coned-disc spring 13, that is shown in figure 7 with reference to an alternative embodiment of the invention, but that can be also applied to the embodiment of figure 5, arranged to elastically force the rotor body 55 against the friction disc 85.
  • the coned-disc spring 13 can be engaged at an internal edge 14 (see figure 7) to shaft 60.
  • the shaft 60 can provide a circumferential groove arranged to engage, in use, the internal edge 14 of the coned-disc spring 13, in order to maintain the same in a correct operative position in which it forces the rotor body 55 against the friction disc 85.
  • the latter can be positioned between the rotor body 55 and a protruding portion of the shaft 60, not shown in the figure for reasons of simplicity.
  • At least one between the rotor body 55 and the spool 20 can be rotatably mounted on the shaft 60 by means of a bushing 75.
  • both the rotor body 55 and the spool 20 are rotatably mounted on a same bushing 75, but it is also provided that they are independently rotatably mounted on shaft 60 by means of a respective bushing 75, or that only one of them is rotatably mounted on shaft 60 by means of a bushing.
  • the bushing 75 can provide a laterally protruding portion, or shoulder, 73 which protrudes between the spool 20 and the rotor body 55.
  • the, or each, friction disc 85 can be positioned between the shoulder 73 and the rotor body 55.
  • la coned- disc spring 13 can engage the bushing 75.
  • the shaft 60 comprises a first tubular portion 61, which is integral to the spool 20 and arranged coaxially to the same, and a second portion 62, also this arranged coaxially to said spool 20, but that, instead, is not integral to the spool 20.
  • both the first tubular portion 61 and the spool 20 can be rotatably mounted on shaft 60 by means of a bushing 75, or similar elements, in case provided with a shoulder 73.
  • an actuation member 70 is provided arranged to operate the rotation of the second portion 62 of the shaft 60, till now still, about the rotation axis 120, once the spool 20 has already made a predetermined number of turns about the rotation axis 120, from when the brake device 50 has started to operate for braking the rotation of the spool 20.
  • the second portion 62 of shaft 60 remains still, whereas the first portion 61 rotates together with the spool 20.
  • the second portion 62 of shaft 60 continua to remain still till the spool 20 has made a predetermined number of turns about the rotation axis 120.
  • the predetermined number of turns corresponds to a predetermined length of leash 30 unwound from the spool 20.
  • the actuation member 70 engages the second portion 62 of shaft 60 to the spool 20.
  • the actuation member 70 makes the second portion 62 of shaft 60 integral to the spool. Therefore, also the second portion 62 of shaft 60 starts to rotate together with the spool 20 about the rotation axis 120.
  • the actuation member 70 can be a resilient member, in particular the return resilient member that houses within the cavity 25 of the spool 20 (see what above described with reference to figure 2A) .
  • the return resilient member in particular a spiral torsion spring, has a first end 71 fixed to the spool 20 and a second end 72 fixed to the second portion 62 of shaft 60.
  • the second end 72 can be fixed to the second portion 62 of shaft 60 at a hollow 61b provided on a face of the shaft 60 (see figure 8) .
  • the return resilient member 70 elastically connect the second portion 62 of shaft 60 and the spool 20.
  • the return resilient member 70 when the return resilient member 70 reaches its maximum length, situation obtained once the spool 20 has made a predetermined number of turns about axis 120, in the braking configuration, it causes a rotation of the second portion 62 of shaft 60 about axis 120.
  • the spring 70 is not anymore able to extend and, therefore, it makes the second portion 62 of shaft 60 integral to the spool 20.
  • the brake device 50 does not start to operate for braking the spool 20
  • the second portion 62 of shaft 60 is disengaged from the spool 20, and it does not rotate.
  • the second portion 62 of shaft 60 is, then, advantageously associated to an additional brake device 150.
  • the latter comprises, in particular, a base support
  • An engagement member 45 is, furthermore, provided arranged to rotatably connect the base support 40 to the second portion 62 of shaft 60. Therefore, the second portion 62 of shaft 60 is capable of rotating with respect to the container body 10.
  • the engagement member comprises a screw 45 arranged to engage in a threaded hole
  • the screw 45 provides a locking head 46 arranged, in use, in an axial cavity 65 provided m the second portion 62 of shaft 60. More in detail, the locking head 46 of screw 45 is arranged to lock the engaging portion 64 arranged in the cavity 65, in particular a protruding edge, against the base support 40.
  • the screw 45 is not screwed in the second portion 62 of shaft 60, and, therefore, it allows the same to rotate about axis 120 when the above described condition is reached.
  • a friction disc 80 is provided that is made of a friction material, e.g. rubber, or felt.
  • the rotor body 55 can be of the type described with reference to the figures 2 to 4.
  • the resilient member 57 can provide a different kind of "constraint" obstructing the blocking pin 56 from engaging the protruding portion 53 up to reach a predetermined threshold value of the centrifugal force Fc .
  • the blocking pin 56 can be maintained in the rest position by means of a magnet.
  • the blocking pin 56 can be made of a ferromagnetic material and can provide a magnet arranged and configured to exert a magnetic attraction force opposite to the centrifugal force Fc, for example arranged within the housing 58.
  • a retractable leash 1 provides a manual blocking device 90 comprising a button 95, on which a user can act for blocking the unwinding of the leash 30 from the spool 20. More precisely, the blocking device 90, according to the invention, comprises an actuation carriage 130 operatively connected to the button 95.
  • the actuation carriage 130 when the blocking device 90 is not operated, the actuation carriage 130 is arranged in a retracted position, in which the leash 30 is more, or less, unwound from the spool 20, depending on the relative velocity between the user who grasps the leash 1 and the domestic animal that is fastened to it.
  • the user When the user operates the blocking device 90 acting on the button 95, he/she causes the actuation carriage 130 to translate along a direction that is substantially tangential to the spool 20, from the above said retracted position to an advanced position.
  • the actuation carriage 130 causes a blocking tooth 140, arranged along the above disclosed advancing direction, to rotate about a rotation axis 145, that is, for example, parallel to the rotation axis 120.
  • the blocking tooth 140 moves from a disengagement position (figures 8 and 9), to a blocking position (figure 10) in which it engages a projecting member 27 of the spool 20, whereby it stops the rotation of the spool about axis 120.
  • a determined number of protruding members 27 is provided, radially arranged at a face 23 of the spool 20.
  • the protruding members 27 can be arranged according to a different layout on the spool 20.
  • a resilient member 160 arranged to resiliently oppose the rotation of the blocking tooth 140 from the disengagement position to the blocking position. More in detail, when the user stop acting on button 95, the elastic force of the resilient member 160, e.g. a spiral torsion spring coaxially mounted about the rotation axis 145 (that can be partly seen in figure 8), causes a rotation opposite to the one above described, i.e. it causes the return of the blocking tooth 140 in the disengagement position.
  • the stroke of the actuation carriage 130 is defined between a first and a second stop member 131 and 132, for example integrated in the structure of the container body 10, against which the actuation carriage 130 abuts when it is arranged in the advanced position and in the retracted position, respectively.
  • the actuation carriage 130 provides "appendixes" 133 and 134 arranged to respectively abut with the stop members 131 and 132.
  • Other similar solutions can be also provided.
  • the solution according to the present invention is, on one hand, easier to be operated by the user, and on the other hand, it is more effective than the solutions of prior art, in which the actuation carriage directly blocks the spool by translating along a radial direction. Furthermore, with the present solution, the user can operate the blocking device with a more natural and comfortable movement of the thumb, thus highly reducing the stresses acting on the thumb same, and, therefore, highly reducing the possibility of trauma for the muscles and the joints of the hand of the user.
  • the leash 1 provides a first brake device, not necessarily of the kind described with reference to the figures 2 to 5, and a second brake device 150, as above described.

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  • Life Sciences & Earth Sciences (AREA)
  • Environmental Sciences (AREA)
  • Animal Husbandry (AREA)
  • Biodiversity & Conservation Biology (AREA)
  • Storing, Repeated Paying-Out, And Re-Storing Of Elongated Articles (AREA)

Abstract

Laisse rétractable (1) comprenant un corps contenant (10) à l'intérieur duquel une bobine (20) est montée, libre de tourner autour d'un axe de rotation (120). Autour de la bobine (20) est enroulée, lors de l'utilisation, une laisse (30) ayant une première extrémité (30a) fixée à la bobine (20) et une seconde extrémité (30b) appropriée pour être mise en prise avec un collier, ou un harnais, qui est appliqué à un animal domestique, en particulier un chien. La laisse rétractable (1) fournit, en outre, un dispositif de frein (50) conçu pour positionner la bobine (20) dans une configuration de freinage lorsque la force centrifuge produite par la rotation de la bobine (20) dépasse une valeur prédéfinie. Le dispositif de frein (50) comprend un corps de stator (51) solidaire du corps contenant (10) et muni d'un élément saillant (53). En outre, un corps de rotor (55) est également prévu, celui-ci également agencé coaxialement à la bobine (20), et conçu, lors de l'utilisation, pour être logé, libre de tourner, dans le corps de stator (51). Le corps de rotor (55) fournit une tige de blocage (56) et un élément élastique (57) qui exerce sur la tige de blocage (56) une force élastique opposée à la force centrifuge.
PCT/IB2017/051413 2016-03-14 2017-03-10 Laisse rétractable perfectionnée WO2017158481A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
IT102016000026246 2016-03-14
ITUA2016A001609A ITUA20161609A1 (it) 2016-03-14 2016-03-14 Guinzaglio retrattile perfezionato

Publications (1)

Publication Number Publication Date
WO2017158481A1 true WO2017158481A1 (fr) 2017-09-21

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CN108739488A (zh) * 2018-06-25 2018-11-06 东莞市佳晟实业有限公司 一种新型宠物牵引器
CN109042377A (zh) * 2018-08-10 2018-12-21 必然科技有限公司 防爆冲锁死的宠物牵引器
CN109699516A (zh) * 2019-03-08 2019-05-03 苏州佩德漫特工贸有限公司 宠物牵引器
CN111316932A (zh) * 2019-12-31 2020-06-23 必然科技有限公司 一种防爆冲宠物牵引器
CN111573434A (zh) * 2020-06-09 2020-08-25 上海飞科电器股份有限公司 卷线器和电力设备
CN114271211A (zh) * 2021-06-18 2022-04-05 吕俊武 具有固定及加速双锁止结构的宠物牵引器
US20220240489A1 (en) * 2021-02-04 2022-08-04 Ningbo Meace Pet Products Co.,Ltd Damper and anti-irritable tractor
WO2023173597A1 (fr) * 2022-03-14 2023-09-21 深圳市魔创宠宝科技有限公司 Laisse à enrouleur pour animal de compagnie

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WO2020000274A1 (fr) * 2018-06-25 2020-01-02 东莞市佳晟实业有限公司 Rétracteur pour animal de compagnie
CN108739488A (zh) * 2018-06-25 2018-11-06 东莞市佳晟实业有限公司 一种新型宠物牵引器
CN109042377B (zh) * 2018-08-10 2024-02-13 必然科技有限公司 防爆冲锁死的宠物牵引器
CN109042377A (zh) * 2018-08-10 2018-12-21 必然科技有限公司 防爆冲锁死的宠物牵引器
EP3607820A1 (fr) * 2018-08-10 2020-02-12 Best-Run Technology Ltd. Laisse pour animal de compagnie empêchant le blocage dû aux secousses
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CN109699516A (zh) * 2019-03-08 2019-05-03 苏州佩德漫特工贸有限公司 宠物牵引器
CN111316932A (zh) * 2019-12-31 2020-06-23 必然科技有限公司 一种防爆冲宠物牵引器
CN111573434A (zh) * 2020-06-09 2020-08-25 上海飞科电器股份有限公司 卷线器和电力设备
US20220240489A1 (en) * 2021-02-04 2022-08-04 Ningbo Meace Pet Products Co.,Ltd Damper and anti-irritable tractor
CN114271211B (zh) * 2021-06-18 2023-08-01 吕俊武 具有固定及加速双锁止结构的宠物牵引器
CN114271211A (zh) * 2021-06-18 2022-04-05 吕俊武 具有固定及加速双锁止结构的宠物牵引器
WO2023173597A1 (fr) * 2022-03-14 2023-09-21 深圳市魔创宠宝科技有限公司 Laisse à enrouleur pour animal de compagnie

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