• 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:
    Characteristics of compensation nuts, the compensation nuts being those that are used as elements in the attachment of accessories and that seek to overcome a gap between the frame and fixing panel of an application in which the size of said gap can be variable, said compensation nut (1) including a nut (2) and a compensating bolt (3), in which a service position is established or closed for said compensation nut (1), in which the height or expansion between said nut (2) and said screw (3) is minimal, by at least one adhesive (6) block and elastic, allowing to maintain the unión between the nut (2) and the bolt or screw (3) for tightening torques smaller than 0.4 nm and breaking said joint for tightening torques of 0.4 nm or more. (Machine-translation by Google Translate, not legally binding)
    公开号:ES2579001A1
    申请号:ES201500080
    申请日:2015-02-03
    公开日:2016-08-03
    发明作者:Jaume Arisa Busquets
    申请人:Illinois Tool Works Inc；
    IPC主号:
    专利说明:

    DESCRIPTION

    Compensation nut.

    Field of the invention 5

    The present invention develops different characteristics of the so-called compensation nuts, intended to fix an application maintaining a variable distance between the surface or panel where the application is installed and the support element or chassis where said nut is locked, with the particularity that said features 10 improve the operation and efficiency of the compensating nut assembly by allowing a removable locking position of the nut travel.

    Background
     fifteen
    Compensation nuts are known whose purpose is to fix an application to a support panel or surface of said application and which allow safeguarding the variable space existing between said panel and the support frame or surface where said nut is anchored.
     twenty
    Briefly, said nuts incorporate a hollow interior screw. This screw is screwed onto the thread of the nut that is reversed; that is to say, the dextrogyric movement of the screw produces the recoil of the screw and the levógiro rotation produces the advance of the screw inside the nut.
     25
    This hollow screw has gears inside it so that when the screw used to fix the application is inserted, the rotation of this application fixing screw also carries out the drag, the rotation, of the compensating nut screw.

    The known operation of said type of nuts represents that when the screw of application is threaded in the hollow of the screw of the compensating nut, this twist that is dextrógiro produces in the first place, as we had commented previously, the recoil of the screw of the nut compensator to cover all the gap between the support panel of the application and the frame or chassis of the vehicle where the compensating nut is fixed. 35

    The continuation of the tightening action of the application fixing screw produces, in the second place, the advance of said screw inside the screw of the compensation nut and the fixing of the application to be installed.
     40
    EP2796729 discloses a compensating nut of the type described in which the screw of the compensating nut has internal crimps formed by legs directed from the surface towards the axial axis of said screw.

    These type of nuts are served in boxes that group a plurality of them and the operator, when taken, places them in the installation place, while taking an application fixing screw and the application support and introducing said screw in the screw hole of the compensating nut. By means of an automatic screwing machine, it performs in a single operation both the expansion of the compensating nut and the fixing of the application support to it. fifty
    This type of operation is repeated numerous times and it is desired to perform it with the greatest security and the shortest possible time. An efficient and simple process multiplies its benefits by the number of repetitions of the same in the assembly line and together represents an important economy in terms of manufacturing costs.
     5
    The problem encountered with the known technique is that due to the vibrations and shocks that occurred during the transport and / or storage of the pieces, it is usual that the screw of the compensating nut is separated from its nut, or the screw has simply been raised and is not in its service position, at a minimum height of said compensating nut. This represents for the installer of the compensating nut 10 to mount the nut, threading the screw until it reaches the minimum height position of the assembly.

    Naturally this inconvenience is tedious and represents a reduction in efficiency in the assembly line that the industry intends to solve. fifteen

    The most immediate response is to overmold the piece with two plastic crowns, one in the nut and the other in the screw, and that incorporate a flange set against an antagonistic stop made of the same plastic material.
     twenty
    However, this simple solution does not just work due to the problem of the accumulation of the effects of vibrations that said solution due to its lack of elasticity cannot overcome. As a consequence of the shakes, the flange is mounted slightly on the antagonist stop, with the drawback that further shocks can be added to the previous path and end up bypassing the brake created and releasing the screw and nut union 25, with the drawbacks described above.

    The service position of a compensation nut, the mounted position, is the position in which the compensation screw is fully inserted in the nut and the height of the gap to be covered between frame and panel is the minimum according to the specifications of the part 30 . In this situation the height of the compensating nut is the minimum, it is understood that this is maintaining a slight distance from the possible path that avoids the over tightening and nailing of the screw in the nut. The desired locking of the service position must be able to be broken with a force that prevents accidental disarming due to vibrations, but which allows for easy installation. 35

    In the working conditions of the current automobile industry, it is common to pre-assemble parts and parts that are then transported to the final assembly centers or to remote intermediate assembly points. As a consequence, the pre-assembled piece must be able to withstand the vibrations and shocks derived from transport without disassembly.

    In the previous description of the current situation, although the flange can overcome the stop, bending, to allow the correct functioning of the compensation nut when it receives an adequate force, it happens that even minor forces, for example 45 derived from the vibrations of the transport, they can initiate that flexion of the flange, while a new vibration advances more in that flexion, and another new vibration can get to overcome the top. The compensating nut can be disengaged later, the locking mechanism described having been inconvenient with the inconvenience that this entails. fifty
    One of the main objectives of the present invention is to overcome said drawbacks by providing a mechanism for locking the compensating nut that is effective against repeated vibrations derived from the transport or storage of said packaged parts in their service position.
     5
    These and other advantages of the present invention will be more apparent throughout the description thereof that follows.

    Brief Description of the Invention
     10
    The present invention develops characteristics in compensation nuts, said compensation nuts being those that are used as elements in the fixing of accessories, for example in the automobile industry, and which aim to overcome a gap between the frame and the fixing panel of an application. in which the size of said gap can be variable. fifteen

    The main feature described by the present invention relates to the establishment of a releasable locking position of the compensation nut in its service position. It is also an economic, simple and elastic block. So that the assembly recovers perfectly from the vibrations without undermining the union obtained by said blockage.

    This blocking is made by a part of modified silane polymer that adheres to the compensating nut, together with the nut and the screw, maintaining an economic union, and of low cost that avoids adding complementary pieces and that is also elastic.

    In this way all the objectives pursued by the present invention have been obtained.

    Brief explanation of the drawings 30

    For a better understanding of the invention, a descriptive sheet of drawings is provided herein, provided only by way of illustration and not limiting the invention.
     35
    Figure 1 is a perspective representation of a composition nut according to one of the possible embodiments of the present invention in its closed or service position, when it has a lower height.

    Figure 2 is a front view of the compensating nut of the previous embodiment, this time with the expanded compensation nut, presenting a height greater than that of service as a result of the screw deployment.

    Figure 3 is a perspective view of another possible embodiment of the present invention, the compensating nut being in its service position and the characteristic lock of the present invention being shown.

    Detailed Explanation of the Invention

    The present invention consists of characteristics of the compensation nuts, the compensation nuts being those used as elements in the
    fixing accessories, for example in the automobile industry, and which aim to overcome a gap between the frame and the fixing panel of an application in which the size of said space can be variable.

    Figures 1 and 2 show an exemplary embodiment of a compensation nut of 5 used by the present invention, the first being in the service position, the second deployed, expanded, and covering a greater height.

    These type of compensation nuts (1) are formed by a nut (2) and a hollow screw (3). The nut (2) has, in the shown embodiments, a base with about 10 legs (4) fastening to the support frame of the compensating nut, and from said base emerging a cylinder with internal thread. In the embodiments shown there is a joint between said cylinder and said base by means of a body of revolution of a circle arc segment, said dome (5) providing an additional elastic reserve of said nut (2). fifteen

    The legs (4) for fixing to the frame of the vehicle can be of different shapes as shown in the two embodiments shown in the figures. In the first one, they are springs aligned in groups of two, on each side of the nut, configured to fit in a slot in the panel or frame of the vehicle and exert tension against its laterals.

    These legs (4) are, in the embodiment shown in the graphics, formed by two descending sections (41 and 42) joined by their end (43) making a lateral action spring. These legs are inserted into holes that are narrow approximately rectangular grooves 25, so that the mentioned springs act against the short sides of said grooves on the fixing surfaces.

    The descending section (41) of said legs (4) that is external and that contacts against the edge of the groove or hole of the panel has a step (44) or recess that acts against the panel and exerts a retention action of the same against forces of extraction of the compensation nut.

    On the other hand, the embodiment of Figure 3 shows other legs (4), also elastic, but with an arrangement with bending and pressure behavior against the face opposite to the fixing surface or frame where said nut (2) is fixed.

    These legs (4) are made by a descending section (45) that extends, reversing its direction in another ascending section (46). The end of said leg (4) has an approximate "L" shape, supporting a flat part (47) approximately 40 parallel to the surface of the fixing panel and a stop perpendicular (48) to said surface that contacts laterally against the edges of the fixing panel hole.

    The work of the perpendicular end (48) of said leg (4) against the edge of the support panel hole is against the long side of the slot of said approximately rectangular hole 45, unlike the previous embodiment in which the tension was against the short sides of said groove.

    Both embodiments allow a firm and tension grip on the support panel, so that they allow a good grip and transport of the pre-installed part towards the location of the assembly line of the installation of said element or part in the
    vehicle, adequately resisting vibrations derived from transport, without disassembling from said pre-installed position.

    As is known, the thread of the nut (2) is in the opposite direction, that is, when the screw (3) is screwed to the right, dextrogiro, instead of moving backwards and vice versa. 5 This is so that when a bolt or bolt for fixing an application is screwed into the screw (2), the dextrogiro (2), drag drag, caused by the installation of the bolt or screw for installing an application first expand the compensation nut until it completely covers the space to be overcome, and then fix the application. 10

    The main feature of the present invention is to place at least one adhesive and elastic block (6) of modified silane polymer which is a resin that allows the nut (2) and the screw (3) to be held together in their service position .
     fifteen
    Said installation of said block (6) is carried out in an automated and obvious way the difficulties described above derived from more complex and inefficient solutions that require the contest of different pieces.

    The configuration of said block allows to maintain the union of nut (2) and screw (3) 20 for tightening torques smaller than approximately 0.4 Nm and allows the breaking of said union for tightening torques of 0.4 Nm or greater.

    This joint is elastic by the very nature of the material used which is a synthetic resin. The main advantage of this, as mentioned above, is that in the event of a jolt or vibration, the nut (2) and the screw (3) can move slightly together, but the block (6) acts as a spring and restores the service position absorbing the energy of said jolt.

    It should be understood that the constructive nature of said block (6) has been configured to possess the elastic quality in conditions that allow it to absorb the vibrations received while recovering its previous original position after a shake or vibration.

    This is due to the elastic hysteresis of said block (6), in which the recovery of the position prior to a small deformation occurs by absorbing energy, damping the impact. The difference between the energy received to deform the block (6) and that returned by said block, upon recovering its initial position, is absorbed and dissipated inside the elastic material, without being transmitted to the rest of the compensation nut. This allows optimum operation of said block (6) within the 40 features required by the present invention in order to absorb vibrations and shocks.

    In the preferred embodiment of the present invention said block (6) has a Shore-A hardness of approximately 55, with an elongation at break according to DIN standard 53504 of approximately 250%, its tensile strength being also according to said DIN 53504 standard, of approximately 3.0 MPa.

    In accordance with the present specification, the characteristics described in the present invention of the compensation nuts fulfill all the inventive objectives pursued, providing a lock of the compensation nut (1) in
    a position set in advance, said block being also elastic, recovering the initial relationship position between the nut (2) and the compensation screw (3), absorbing part of the energy of the vibration received.

    In another of the objectives of the present invention, the fixing of the nut (2) and of the assembly 5 of the compensation nut to the support and preliminary assembly element of an application is robust and also elastic, due to the design of the legs (4) which are robust and elastic, tightly securing the hole provided in said support element, substantially improving the performance of the compensation nuts previously used in the automotive industry. 10

    It is understood that in the present case, how many details of finish and shape may not change the essence of the invention can be variable.
    权利要求:
    Claims (12)
    [1]

    1. Compensation nut, the compensation nuts being those that are used as elements in the attachment of accessories, for example in the automobile industry, and which aim to overcome a gap between the frame and the fixing panel of an application in which the size of said gap can be variable, said compensation nut (1) including a nut (2) and a bolt or compensation screw (3), characterized in that they establish a closed or service position for said compensation nut (1) , in which the height or expansion between said nut (2) and said screw (3) has a predetermined value by means of at least one block (6) of adhesive and elastic material, 10 absorbing shocks and vibrations received, which allows maintaining the joint between the nut (2) and the bolt or screw (3) for tightening torques smaller than approximately 0.4 Nm and allows said union to break for tightening torques of approximately 0.4 Nm or greater.
     fifteen
    [2]
    2. Compensation nut according to the preceding claim, characterized in that said block (6) is made of synthetic adhesive resin.

    [3]
    3. Compensation nut according to the preceding claim, characterized in that said block (6) is made of modified silane polymer material. twenty

    [4]
    4. Compensation nut according to the preceding claim, characterized in that said block (6) has an elongation at break of at least 250% or greater, according to DIN 53504.
     25
    [5]
    5. Compensation nut according to any one of the preceding claims, characterized in that said nut (2) has an inner threaded cylinder, there is a connecting dome (5) between its base and said cylinder configured to provide elastic resistance to said nut (2).
     30
    [6]
    6. Compensation nut according to any one of the preceding claims, characterized in that said compensation nut (1) is formed by a nut (2) that includes flexible and elastic legs (4) for fixing to a fixing surface or frame .
     35
    [7]
    7. Compensation nut, according to the preceding claim, characterized in that each of said legs (4) is formed by two descending sections (41 and 42) that are joined at its end (43), creating a lateral action spring.

    [8]
    8. Compensation nut, according to the preceding claim, characterized in that the descending section which is external (41) and which contacts against the edge of the hole of the fixing surface has a locking step (44).

    [9]
    9. Compensation nut according to claim 6, characterized in that each of said legs (4) is formed by a descending section (45) which extends in the opposite direction in another section which is ascending (46).

    [10]
    10. Compensation nut according to the preceding claim, characterized in that the end of said legs (4) ends in an approximate form of an "L", supporting a flat part (47) approximately parallel to the surface of the fixing panel and a stop fifty
    perpendicular (48) to said surface that contacts against the edges of the fixing panel hole.

    [11]
    11. Compensation nut, according to any one of the preceding claims, characterized in that said compensation nut is metallic and made of heat-treated carbon steel.

    [12]
    12. Compensation nut according to any one of the preceding claims, characterized in that said compensation nut is galvanized.
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    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    ES2067839T3|1991-09-24|1995-04-01|Itw Befestigungssysteme|JOINT BY SCREW TO JOIN TWO PIECES OF CONSTRUCTION, ESPECIALLY SHEETS, LOCATED AT A DISTANCE FROM THEMSELVES.|
    US20020176738A1|2000-04-08|2002-11-28|Bernd Kluting|Connecting device|
    DE20119112U1|2001-11-23|2002-02-28|Boellhoff Gmbh|Tolerance compensation arrangement|
    DE20209853U1|2002-06-25|2002-10-17|Komos Gmbh Komponenten Module|Distance compensation element made of plastic|
    DE10300991A1|2003-01-14|2004-07-22|Witte-Velbert Gmbh & Co. Kg|Compensatory screw connection, comprising radial projection at outer thread acting in combination with stop located at inner thread|
    DE202009003796U1|2009-03-12|2009-07-02|Illinois Tool Works Inc., Glenview|Apparatus for mounting a first sheet to a spaced second sheet|
    EP2796729A1|2011-11-24|2014-10-29|Illinois Tool Works Inc.|Tolerance compensating device|
    US3737355A|1971-01-18|1973-06-05|Standard Pressed Steel Co|Fastener improvement|
    US4033393A|1971-03-08|1977-07-05|Eaton Corporation|Self-locking fastener|
    WO1994029603A1|1993-06-16|1994-12-22|Korea Research Institute Of Chemical Technology|Polymer sealant microencapsulated by polyurethane reaction and its binder solution|
    AR023110A1|1999-03-22|2002-09-04|Loctite Corp|THREADED ITEMS WITH DEFORMABLE COATED COATING ON THE SAME|
    JP5004281B2|2007-04-04|2012-08-22|株式会社青山製作所|Fastener|
    JP5771823B2|2011-04-05|2015-09-02|株式会社青山製作所|Rail vehicle interior member mounting structure|
    FR2998015B1|2012-11-12|2015-05-29|Lisi Aerospace|DEVICE FOR SECURING FASTENING|
    US8894333B2|2012-11-13|2014-11-25|Raimund Beck Nageltechnik Gmbh|Fastening means with a coating containing filling material|
    DE202013005582U1|2013-06-21|2014-09-23|Illinois Tool Works Inc.|System comprising a carrier component|ES2705741A1|2017-09-22|2019-03-26|Itw Metal Fasteners S L|Device and procedure for fastening an accessory of a vehicle |
    ES2737682B2|2018-07-11|2021-11-11|Illinois Tool Works|Compensation nut|
    法律状态:
    2017-05-10| FG2A| Definitive protection|Ref document number: 2579001 Country of ref document: ES Kind code of ref document: B1 Effective date: 20170510 |
    优先权:
    申请号 | 申请日 | 专利标题
    ES201500080A|ES2579001B1|2015-02-03|2015-02-03|Compensation nut|ES201500080A| ES2579001B1|2015-02-03|2015-02-03|Compensation nut|
    PCT/US2016/014906| WO2016126462A1|2015-02-03|2016-01-26|Compensation nut|
    CN201680008493.0A| CN107532629A|2015-02-03|2016-01-26|Compensate nut|
    EP16708485.4A| EP3253974B1|2015-02-03|2016-01-26|Compensation nut|
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