• 专利附录
  • 专利说明
  • 权利要求
  • 类似技术
  • 同族专利
  • 引用文献
  • 法律状态
  • 优先权
    • 专利摘要:
    Spare wheel collection unit, comprising a drum (10) that rotates to pick up or drop a cable (20), one end (21) of the cable (20) being attached to a terminal (30) that is attached to the body (11) of the drum (10), the body (11) of the drum (10) being cylindrical, with a lateral surface (12) comprising a helical groove (13) for winding the cable (20) through a plurality of turns, the helical groove (13) forming a channel where the cable (20) is housed. The helical groove (13) comprises interference means (14) in at least one section of a turn of said helical groove (13), said interference means (14) interfering with the width of the cable (20) and preventing the movement of the cable (20) in the radial direction and tangential with respect to the lateral surface (12) of the drum (10). (Machine-translation by Google Translate, not legally binding)
    公开号:ES2669998A1
    申请号:ES201631524
    申请日:2016-11-29
    公开日:2018-05-29
    发明作者:José Ignacio GARRIDO RAMOS；Ekaitz URZELAI USAOLA
    申请人:Batz S Coop Ltda；
    IPC主号:
    专利说明:

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    Spare wheel collection unit
    SECTOR OF THE TECHNIQUE
    The present invention relates to units for the collection of spare wheels in vehicles.
    PREVIOUS STATE OF THE TECHNIQUE
    Spare wheel collection units designed for use in vehicles are known in the state of the art, and more specifically units designed for the collection or release of a spare wheel that are arranged under the chassis (or at the bottom) of the vehicle.
    These units comprise a mechanism with a transmission shaft, which allows a cable to be picked up or released when the user manipulates the transmission shaft with a tool. The transmission shaft comprises a gear assembly that allows the transmission of a torque made by the user with the tool, and a drum that allows the cable to be picked up or released when the torque is transmitted from the gear assembly. The drum comprises a terminal to which one end of the cable is attached, the terminal being attached to the drum.
    Patent application ES2531283A1 describes a spare wheel collection unit, comprising a drum that rotates to collect or release a cable, one end of the cable being attached to a terminal that is attached to the drum body, the drum body being cylindrical, with a side surface comprising a helical groove for winding the cable by a plurality of turns, the helical groove forming a channel where the cable is housed.
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    EXHIBITION OF THE INVENTION
    The object of the invention is to provide a spare wheel collection unit, as defined in the claims.
    The spare wheel collection unit of the invention comprises a drum that rotates to collect or release a cable, one end of the cable being attached to a terminal that is attached to the body of the drum, the body of the drum being cylindrical, with a surface side comprising a helical groove for winding the cable by a plurality of turns, the helical groove forming a channel where the cable is housed.
    The helical groove comprises interference means in at least one section of one turn of said helical groove, said interference means interfering with the width of the cable, and preventing the movement of the cable in the radial and tangential direction with respect to the lateral surface of the drum .
    The spare wheel pick-up units of the drum type with helical groove present a problem when the cable is released, and therefore is removed from the drum, in a vacuum, that is, when the weight of the wheel is not pulling the cable . The cable is connected to the drum by means of a terminal, and the drum is housed in a housing housing, and when said cable is picked up in the drum subjected to a load that is the spare wheel, the cable rests on the channel of the helical groove, pressing against the surface of the drum body. But when the cable is released in a vacuum, that is, without load, the drum pushes the terminal and this terminal pushes the cable, so that the cable can be removed from the spare wheel collection unit. However, the lack of tension in the cable makes said cable have a tendency to stand straight, and open against the wall of the housing of the drum housing, generating a great resistance that ends up deforming the cable, especially near the terminal of the drum, thereby blocking the replacement wheel collection unit.
    The cable is designed to work with tension, with the load of the wheel, so that when it works under compression, that is, when it is pushed in vacuum by the terminal to remove it from the spare wheel collection unit, it has a tendency to easily pan and out of the side surface of the drum, rubbing against the housing
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    of the drum In addition, the smaller the diameter of the drum, the easier it will be for the cable to run out of the lateral surface of the drum. In the spare wheel collection unit of the invention, interference means are arranged in at least one of the turns of the helical groove. Surprisingly said interference means interfere with the width of the cable, and prevent it from moving tangentially and radially with respect to the lateral surface of the drum, without impairing the normal operation of the spare wheel collection unit.
    These and other advantages and features of the invention will become apparent in view of the figures and the detailed description of the invention.
    DESCRIPTION OF THE DRAWINGS
    Figure 1 shows an exploded perspective view represented in several parallel axes of an embodiment of a spare wheel collection unit of the invention.
    Figure 2 shows a perspective view of the drum of the unit of Figure 1.
    Figure 3 shows a perspective view of the drum of Figure 2, with the cable and terminal mounted.
    Figure 4 shows a side view of the unit of Figure 1, in which the cover housing has been removed, making the housing housing transparent.
    Figure 5 shows a perspective view of the unit of Figure 1, in which the housing housing has been removed, with the cable and terminal mounted.
    Figure 6 shows a side sectional view of the drum of the unit of Figure 1, in a position in which the helical groove comprises interference means.
    Figure 7 shows a side sectional view of the drum of the unit of Figure 1, in a position in which the helical groove comprises engagement means.
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    Figure 8 is a front detail view of a turn of the helical groove of the drum of the unit of Figure 1, with the cable mounted and interference means in a section of said helical groove.
    Figure 9 shows a detailed side sectional view of the drum of the unit of Figure 1 housed in the housing housing, with the cable mounted on the interference means of the helical groove.
    Figure 10 is a front detail view of a turn of the helical groove of the drum of the unit of Figure 1, with the cable mounted and hooking means in a section of said helical groove.
    Figure 11 shows a detailed side sectional view of the drum of the unit of Figure 1 housed in the housing housing, with the cable mounted on the hitching means of the helical groove.
    DETAILED EXHIBITION OF THE INVENTION
    Figure 1 shows an exploded perspective view on several parallel axes of an embodiment of a replacement wheel collection unit 100, said unit 100 comprising two housings, a cover housing 80 and a housing housing 90, a drum 10 which rotates to collect or release a cable 20, and a gear assembly 50. The gear assembly 50, which allows the transmission of the torque produced by a user with a tool (not shown in Figure 1) acting on a shaft of drive 60 of unit 100, comprises in this embodiment a cam and a crown. The drive shaft 60 is mounted on an eccentric assembly 40, and said eccentric assembly 40 is coupled to the gear assembly 50, said eccentric assembly 40 being mounted in a cam hole. The gear assembly 50 is coupled through the crown to the drum 10, thus allowing the transmission of the torque applied by the user by means of the tool to the drive shaft 60, and thus obtaining the rotation of the drum 10 in one or other sense
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    Figure 2 shows a perspective view of the drum 10 of the unit 100 of Figure 1, and Figure 3 shows a perspective view of the drum of Figure 2 with the cable 20 and a terminal 30 mounted. The drum 10 comprises a body 11 that is cylindrical with a lateral surface 12 which is where the cable 20 is wound. On said lateral surface 12 a helical groove 13 is defined, which in this embodiment of the unit 100 covers the entire lateral surface 12 of the body 11 of the drum 10. The helical groove 13 begins at one end 19a, which is arranged at one end of the lateral surface 12. The helical groove 13 ends at another end 19b disposed at one end of the lateral surface 12 opposite the end where the end 19a of the helical groove 13 is located. One end 21 of the cable 20 is connected to the terminal 30, connection made by pressure or another way of joining, and the terminal 30 in turn is connected to the body 11 of the drum 10.
    The body 11 of the drum 10 comprises a housing, at one end of the lateral surface 12 adjacent to a face of the body 11 of the drum 10, next to the end 19a of the helical groove 13, where the terminal 30 is fitted. In this embodiment of unit 100, terminal 30 can pivot in its housing. The terminal 30 housing comprises an opening that coincides with the end 19a of the helical groove 13, so that the end 21 of the cable 20 has an outlet towards the end 19a of said helical groove 13.
    The terminal 30 comprises a stop (not shown in the figures) protruding from the body of said terminal 30 in a direction parallel to an axis of rotation of the drum 10. The housing of the body 11 of the drum 10 comprises in this embodiment a cavity that allows the housing of the stop of the terminal 30, with an open face towards the lateral surface 12 of the body 11, allowing the passage of the stop towards the outside of the circular line that delimits the outer diameter of the body 11, when the terminal 30 pivots. Thus, the cable 20 starting at the end 19a extends by winding the entire helical groove 13 in a plurality of turns. In this embodiment of the unit 100, the first turn of the cable 20 passes over the stop of the terminal 30. In principle, the tendency to pivot of the terminal 30 is blocked, since the turn of the cable 20 that passes over the stop of the terminal 30 prevents it.
    The cover housing 80 and the housing housing 90 of the unit 100 enclose inside it the transmission shaft of the torque, which is formed by the gear assembly 50, the eccentric assembly 40, the drum 10 and the drive shaft 60. On the
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    Figure 4 shows a side view of the unit 100 of Figure 1, in which the cover housing 80 has been removed, making the housing housing 90 transparent so as to be able to visualize the interior of the unit 100. Figure 5 shows shows a perspective view of the unit 100 of figure 1, in which the housing housing 90 has been removed, with the cable 20 and the terminal 30 mounted.
    The drum 10 is housed in the housing housing 90 which is cylindrical in shape, the side surface 12 of said housing housing 90 surrounding the lateral surface 12 of the body 11 of the drum 10. Therefore, and so that the cable 20 can be picked up or released from the drum 10, there is a space between the wall of the housing housing 90 and the helical groove 13 which allows the cable 20 to pass in a tight manner. The unit 100 also comprises a sliding guide 70 that is mounted to the body 11 of the drum 10. The sliding guide 70 allows the passage of the cable 20 through an opening, which allows the cable 20 to be exited outside the unit 100.
    When the spare wheel collection unit 100 has the spare wheel collected, the cable 20 is fully wound on the body 11 of the drum 10, the turns of the cable 20 being accommodated in a channel 16 forming the walls or fillets that delimit the groove helical 13 in a tight way, due to the torque transmitted by the user through the tool. When the terminal 30 arrives with the rotation of the drum 30 at the height of the opening of the slide guide 70, it can pivot freely because said opening causes a space with respect to the body 11 of the drum 10. When the terminal 30 arrives open with respect to of the circular line delimiting the outer diameter of the body 11 of the drum 10, said terminal 30 contacts a flange of the housing housing 90, stopping the rotation of the drum 10.
    However, the cable 20, which is in this embodiment a braided metal cable, is designed to work in tension supporting the weight of the wheel when raising or lowering it to / from the vehicle. When it works under compression, which is the case that occurs when the cable 20 is removed from the drum 10 without load, when the drum 10 is rotated the terminal 30 pushes the cable 20. The cable 20 has an important rigidity, and has a tendency to put on straight, separating from the channel 16 of the helical groove 13. With the helical groove 13 and the wall of the housing housing 90 adjusted, the cable 20 rubs against said wall producing a torque that is opposite to the torque that causes the cable 20 is removed from drum 10. If the
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    friction is greater than what the stiffness of the cable 20 itself can withstand, said cable 20 buckles, loops or becomes strained, and is damaged causing irreversible plastic deformation, blocking the unit 100.
    Factors that can lead to this type of problem are, for example, the friction resistance generated by the contact between the cable 20 and the wall of the housing 90, or the rigidity of the cable itself. In the case of the resistance generated, a possible cause may be for example the diameter of the drum 10. The larger the diameter of the drum 10, the less tendency the cable 20 will have to exit the channel 16 of the helical groove 13, and in the case of rubbing the wall of the housing housing 90, it will do so with less force, thus producing less friction. Another possible cause is the length of the cable 20 wound. The more cable 20 to be removed from the drum 10, the more likely there will be contact between said cable 20 and the wall of the housing 90, and therefore there will be more friction to overcome.
    As described, another factor that can lead to irreversible damage of the cable 20 is the stiffness of said cable 20 itself. The diameter of the cable influences this factor. As described, in this embodiment of the unit 100 the cable 20 is a braided metal cable, with a circular section. The larger the diameter D of the cable 20, the more stiffness it has, and the more force it is necessary to keep it inside the channel 16 of the helical groove 13. But that same stiffness causes less chance of buckling the cable 20.
    However, with longer lengths of the cable 20, for example longer than one meter, the problem, described above, arises of being more likely to contact between said cable 20 and the wall of the housing 90.
    To solve the aforementioned problems, the unit 100 of the invention comprises in the helical groove 13 interference means 14. Figure 6 shows a side sectional view of the drum 10 of the unit 100 of Figure 1, in a position in the that the helical groove 13 comprises the interference means 14. Figure 8 is a detailed front view of a turn of the helical groove 13 of the drum 10 of the unit 100 of Figure 1, with the cable 20 mounted and a means of interference 14 in a section I of said helical groove 13. And Figure 9 shows a detailed side sectional view of the drum 10 of the unit 100 of Figure 1 housed in the housing housing 90, with the
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    In the embodiment of the unit 100 of the invention shown, the interference means 14 are disposed within the channel 16 of the helical groove 13 in all turns of the cable 20, but in other embodiments of said unit 100 it may be sufficient to arranging said interference means 14 in a smaller number of turns of the cable 20 in the helical groove 13. This depends on the configuration of the unit 100 in relation to the causes that can cause the damage of the cable 20, and which have already been described. , such as the diameter of the drum 10, the length of the wound cable 20, and the diameter D of said cable 20.
    The interference means 14 are arranged in sections I of the helical groove 13 arranged every 45 °, said sections I having a length corresponding to an angular arc of 5 °, although in other embodiments of said unit 100 said sections I of interference means 14 may be arranged between them at distances greater than or less than 45 °, and may also be longer or shorter than 5 °. As described above, this depends on the diameter of the drum 10, the length of the wound cable 20, and the diameter D of said cable 20.
    The interference means 14 are, in this embodiment of the unit 100, flat protuberances 15 in the section I and arranged inside the channel 16 of the helical groove 13, from the bottom of said channel 16 to the outer edge of said channel 16 The protuberances 15 in each section I are arranged on both sides of the channel 16, thus producing in said section I a narrowing of the passage of the cable 20 through the helical groove 13, defining a width L of the passage less than the diameter D of the cable 20 In this way, the interference means 14 makes it difficult to advance the cable 20 through the interference means 20, but with this measure the effect of preventing both the movement of said cable 20 in the radial direction of the cylindrical body 11 of the drum is achieved. 10, this is out of the drum body 10, as well as preventing the movement of the cable 20 in the tangential direction of the curvature of the helical groove 13 on the lateral surface 12 of the drum 10 .
    In this way the buckling of the cable 20 is prevented, since by regularly and uniformly distributing the interference means along the helical groove 13, a balance is achieved
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    between the resistance to be overcome by possible frictions with the wall of the housing housing 90 and the rigidity of the cable 20 itself, since distances between the interference means 14 are shortened, and thus the cable 20 has a more rigid behavior. In the embodiment of the unit 100 shown, the cable 20 is metallic braided, and it can be considered to be round with a diameter D. A valid relationship between said diameter D of the cable 20, and the width L of the passage defined by the means of interference 14 is L = 0.95 * D. In other embodiments in which the cable 20 is not round, but also defines a width D of the cable 20 through the interference means 14, said relationship between the width L of the passage of the interference means 14, and the width D of the cable 20 through said interference means 14 may be the one defined above.
    The larger the diameter D of the cable 20, the more tendency it is to leave the helical groove 13 of the drum 10, and a higher level of interference is needed to retain said cable 20 in the helical groove 13. That is, a greater difference between the values of D and L. But at the same time, being a more rigid cable, due to its greater thickness, a smaller number of sections I with interference means 14 is needed for each turn of the helical groove 13. Regarding the length of the cable 20, the longer said cable is, the probability that there is more friction resistance to overcome is greater, so that the level of interference between the diameter D of the cable 20 and the width L of the passage of the means of interference 14 is also greater to be able to retain said cable 20 in the helical groove 13. These are alternative solutions, or the same amount of interference means 14 but with a greater width L, or more quantity of sections I with interference means maintaining the width L. In both defined cases of a cable 20 with greater diameter D and / or longer length, it is impossible for the cable 20 to move in the radial direction and in the tangential direction with the interference means 14.
    This embodiment of the unit 100 of the invention also comprises in the helical groove 13 hooking means 17. Figure 7 shows a side sectional view of the drum 10 of the unit 100 of Figure 1, in a position in which the helical groove 13 comprises the hooking means 17. Figure 10 is a detailed front view of a turn of the helical groove 13 of the drum 10 of the unit 100 of Figure 1, with the cable 20 mounted and a hooking means 17 in a section h of said helical groove 13. And Figure 11 shows a detailed side sectional view of the drum 10 of the unit 100 of Figure 1 housed in the housing 90, with the cable 20 mounted on the
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    In the embodiment of the unit 100 of the invention shown, the engagement means 17 are arranged at the outlet ends of the channel 16 of the helical groove 13 in all turns of the cable 20, but in other embodiments of said unit 100 it can be it is sufficient to arrange said hooking means 17 in the first turns of the cable 20 in the helical groove 13 counted from the end 19a, and in particular in the first turn. This depends on the configuration of the unit 100 in relation to the causes that can cause damage to the cable 20, and which have already been described, such as the diameter of the drum 10, the length of the cable 20 wound, and the diameter D of said cable 20.
    The coupling means 17 are arranged in sections h of the helical groove 13 arranged every 180 °, said sections h having a length corresponding to an angular arc of 5 °, although in other embodiments of said unit 100 said sections h of coupling means 14 may be arranged between them at distances greater than or less than 180 °, and may also be longer or shorter than 5 °.
    In this embodiment of the unit 100, the coupling means 17 are rounded lateral protuberances 18 along the section h, and arranged at the outlet ends of the channel 16 of the helical groove 13. The lateral protuberances 18 in each section h are arranged on both sides of the channel 16, thus producing in said section h a narrowing of the passage of the cable 20 into the helical groove 13, defining a passage width d smaller than the diameter D of the cable 20, and thus enclosing the hook means 17 to the cable 20 inside the channel 16 of the helical groove 13. In this way, the hook means 17 prevent the movement of the cable 20 in the radial direction of the cylindrical body 11 of the drum 10, this is outward of the drum body 10.
    In this way, the cable 20 of the helical groove 13 towards the outside of the lateral surface 12 of the drum 10 is prevented, also distributing the hooking means 17 regularly along the helical groove 13. Thus, it is achieved a way added to the interference means 14 to eliminate the contact of the cable 20 with the wall of the housing housing 90, avoiding damage to the cable 20 and therefore to the unit 100. A valid relationship between the diameter D of the cable 20, and the width d of the step defined by the coupling means 17 is d = 0.9 * D. In other embodiments where the cable 20 is not round, but
    also define a width D of the cable 20 passing through the helical groove 13, said relationship between the width d of the passage defined by the coupling means 17, and the width D of the cable 20 can be the one defined above.
    5 In this embodiment of the replacement wheel collection unit 100, the drum 10 is made of plastic injection, in particular with a high strength polymer, so that in the same injection process of the drum 10, the drum is injected. channel 16 with the interference means 14 and the coupling means 17. In this way, significant improvements in total costs in the manufacture of the unit 100 are achieved.
    权利要求:
    Claims (15)
    [1]
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    1. Replacement wheel collection unit, comprising a drum (10) that rotates to collect or release a cable (20), one end (21) of the cable (20) being attached to a terminal (30) that is connected to the body (11) of the drum (10), the body (11) of the drum (10) being cylindrical and comprising a lateral surface (12) comprising a helical groove (13) for winding the cable (20) by a plurality of turns, the helical groove (13) forming a channel (16) where the cable (20) is housed, characterized in that the helical groove (13) comprises interference means (14) in at least one section (l) of a turn of said helical groove (13), said interference means (14) interfering with the width of the cable (20) and preventing the movement of the cable (20) in the radial and tangential direction with respect to the lateral surface (12) of the drum ( 10).
    [2]
    2. Unit according to claim 1, wherein the helical groove (13) comprises interference means (14) in the first turn from the terminal (30).
    [3]
    3. Unit according to claim 1 or 2, wherein the interference means (14) comprise protuberances (15) disposed inside the channel (16).
    [4]
    Unit according to claim 3, wherein said protuberances (15) are arranged on both sides of the channel (16), defining a cable passage width L (20) smaller than a width D of said cable (20).
    [5]
    5. Unit according to claim 4, wherein the cable (20) is round with a diameter D, the ratio between the passage width L and the diameter D being preferably L = 0.95 * D.
    [6]
    6. Unit according to any of the preceding claims, wherein the channel (16) and the interference means (14) are manufactured with a high strength polymer in the same injection process.
    [7]
    7. Unit according to any of the preceding claims, wherein the sections (1) with interference means (14) are arranged every 45 °.
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    [8]
    Unit according to any of the preceding claims, wherein the at least one section (1) with interference means (14) is an angular arc of approximately 5 °.
    [9]
    Unit according to any one of the preceding claims, wherein all the turns of the helical groove (13) comprise interference means (14).
    [10]
    Unit according to any one of the preceding claims, wherein the helical groove (13) comprises hooking means (17) in at least one section (h) of a turn of said helical groove (13), enclosing said hooking means ( 17) the cable (20) in the channel (16) of the helical groove (13), preventing the movement of the cable (20) in the radial direction with respect to the lateral surface (12) of the drum (10).
    [11]
    11. Unit according to claim 10, wherein the helical groove (13) comprises engagement means (17) in the first turn from the terminal (30).
    [12]
    12. Unit according to claim 10 or 11, wherein the engagement means (17) comprise lateral protuberances (18) disposed at the outlet ends of the channel (16), said lateral protuberances (18) defining a passage width d of the cable (20) less than the width of said cable (20), the cable (20) being round with a diameter D, and the ratio between the passage d and the diameter D being preferably d = 0.90 * D.
    [13]
    13. Unit according to any of the preceding claims, wherein the channel (16) and the coupling means (17) are manufactured with a high strength polymer in the same injection process.
    [14]
    14. Unit according to any of the preceding claims, wherein the sections (h) with coupling means (17) are arranged every 180 °, each section (h) with coupling means (17) being an angular arc of approximately 5 ° .
    [15]
    15. Unit according to any of the preceding claims, wherein all the turns of the helical groove (13) comprise engagement means (17).
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    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    US4030569A|1975-10-07|1977-06-21|Westinghouse Electric Corporation|Traction elevator system having cable groove in drive sheave formed by spaced, elastically deflectable metallic ring members|
    GB2315725A|1996-07-29|1998-02-11|Whitlock Marine Steering Compa|Cable winding apparatus with clamp|
    GB2378694A|2001-08-16|2003-02-19|Cardale Group Ltd|A reel with a cable receiving surface comprising at least one nip|
    DE102007033326A1|2007-07-16|2009-01-22|Casar Drahtseilwerk Saar Gmbh|Rope drum, has force increasing medium necessary for relative movement of rope opposite to drum, where medium is arranged in region of windings of rope, and windings remain on drum in operation of drum|
    JP2012180154A|2011-02-28|2012-09-20|Toshiba Elevator Co Ltd|Elevator|
    ES2531283A2|2013-09-11|2015-03-12|Batz S Coop|Unit for picking up spare wheels|
    法律状态:
    2019-04-02| FG2A| Definitive protection|Ref document number: 2669998 Country of ref document: ES Kind code of ref document: B1 Effective date: 20190402 |
    优先权:
    申请号 | 申请日 | 专利标题
    ES201631524A|ES2669998B1|2016-11-29|2016-11-29|Spare wheel collection unit|ES201631524A| ES2669998B1|2016-11-29|2016-11-29|Spare wheel collection unit|
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