• 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:
    The invention relates to a device for drawing in cables o. The like. With a substantially cylindrical sleeve (1) having at a first end (8) has a first opening (9) for connection to a draw-in spring (2), wherein at one a flexible Einziehfederspitze (3) is attached to the first end (8) opposite the second end (11) of the sleeve (1), consisting of a tie rod (4) with a plastic sheath (5) and a head piece (6) with a receptacle (7 , 7a) for a cable to be recovered. The device is characterized in that the tie rod (4) is freely rotatably and captively received in the sleeve (1).
    公开号:AT515474A1
    申请号:T50171/2014
    申请日:2014-03-07
    公开日:2015-09-15
    发明作者:Helmut Haslacher
    申请人:Haslacher & Haslacher Immobilien & Patentverwaltungs Gmbh；
    IPC主号:
    专利说明:

    The invention relates to a device for drawing in cables with a substantially cylindrical sleeve, which has at a first end a first opening for connection to a retraction element, preferably a retraction spring, wherein attached to a second end opposite the first end of the sleeve, a flexible Einziehfederspitze is that consists of a tie rod with a plastic sheath and a head piece with a receptacle for a cable to be recovered.
    It has been proven to equip pull springs for pulling cables with flexible tips, which can follow the curvatures of the pipes, in which the cable is to be fed, particularly well and also have advantages when pulling through the cable.
    However, it has been found that it is often necessary in difficult situations, to twist the retraction spring during the feed to prevent sticking. This leads to subsequent rotation of the cable to torsions that cause increased tensile forces. This can cause the cable to tear off the device and the retraction process to be restarted.
    The object of the present invention is to provide a device which avoids these disadvantages and which offers further relief when cables.
    According to the invention, these objects are achieved in that the tie rod is freely rotatably and captively received in the sleeve.
    It is preferably provided that a plastic cover partially overlapping extension is arranged at the second end of the sleeve.
    Essential to the solution according to the invention is that the cable can rotate freely relative to the retraction spring. Another key aspect is that the proven spring-loaded tip is further developed to be optimized not only for inserting the retraction spring, but also for retracting the cable. It is advantageous in this context, if the occurrence of disturbing gaps is avoided by the special design of the plastic cover covering extension.
    Preferably, the sleeve has in a central portion a receiving chamber for a thickened end portion of the tie rod. The thickened end portion is held by a stop, so that pulling out of the tie rod is prevented.
    A particularly robust and reliable solution can be achieved by the fact that the plastic sleeve is molded around the tie rod.
    A simple attachment of a cable to be recovered can be done by the recording is designed as a hook.
    Alternatively, the receptacle may be formed as an eyelet. This allows a particularly reliable connection.
    Another alternative is that the receptacle is designed as a releasable connection, preferably a thread. This creates the possibility to use a specific, replaceable tail, for example, a so-called pear in particularly stored applications.
    A particularly favorable embodiment variant of the invention provides that one end of a draw-in spring is pressed into the first opening. Additionally or alternatively, it may be provided that the connection to the draw-in spring is designed as an internal thread. The best solution has been found when both a thread is provided, as well as a compression is performed. This results in a particularly resilient connection.
    The manufacture of the device according to the invention can be simplified in that the tie rod has a pressed end sleeve on its end accommodated in the sleeve.
    Also, a simplified production is the measure that the sleeve has a through hole in the axial region.
    It is also advantageous if the extension which partially covers the plastic cover is separated from the plastic cover by a separating layer. As a result, a slight rotatability is ensured and in the case of an encapsulated tie rod, the extension can be used as part of the mold, which causes a corresponding precision and also a simplification.
    A further facilitating the rotatability can be realized that between the sleeve and the tie rod an axially resilient disc is provided. This disc, which is preferably arranged between the end sleeve and the stop, acts in the manner of an axial plain bearing.
    An alternative embodiment provides that at the first end of the cylindrical sleeve, a pull stocking is pressed. A pull-on stocking is a known component made of a wire mesh which contracts radially when loaded in the axial direction and firmly absorbs a component received in it, in the present case a pull-in spring or a pull-type stocking. Thus, a releasable but resilient connection to a pull-in spring or a pull-stocking can be created.
    Preferably, a fastening sleeve is attached to a to be introduced into the sleeve portion of the puller stocking, which is preferably pressed. As a result, when the first end of the sleeve is compressed, a permanent connection to the pulling stocking is produced.
    The present invention also relates to a method for producing a device for pulling cables, in which an end sleeve is applied to a tie rod, then the tie rod is inserted into a sleeve until the ferrule rests against a stop of the sleeve, after which a receptacle for a cable to be collected and a plastic cover are applied to the tie rod.
    It is particularly preferred if the tie rod is encapsulated by plastic and when encapsulating a surrounded by an annular extension of the sleeve space is filled without causing a firm connection of the plastic with the sleeve.
    Injection molding refers to a technology in which the sleeve together with the tie rod is inserted into a mold and is encased in plastic by injection molding. This results in a particularly intimate connection of the plastic with the tie rod, which contributes to a correspondingly robust design.
    As a result, the invention will be explained in more detail by the embodiments shown in the drawings. 1 shows a first embodiment variant of the device according to the invention in a lateral view; Figure 2 is a section along line II - II in Fig. 1. Fig. 3 is a detail of Figure 2 on an enlarged scale. 4 shows a second embodiment in a side view; Figure 2 is a section along line V - V in Fig. 4. and FIG. 6 shows a detail of FIG. 5 on an enlarged scale.
    In a sleeve 1, which is designed substantially cylindrical, on the one hand, a draw-in spring 2 and the end opposite in the axial direction a flexible Einziehfederspitze 3 is mounted, consisting of a tie rod 4 with a plastic sheath 5 and a head piece 6 with a receptacle 7 for here not shown to be recovered cable. The receptacle 7 is designed here as an eyelet.
    The sleeve 1 has a first end 8, in whose end face a first opening 9 is provided, through which the draw-in spring is introduced, namely screwed in, since an internal thread 10 is provided in the interior of the end 8. In addition, in manufacture, the first end 8 is crimped by application of radially inwardly directed pressure with the retraction spring to produce a particularly durable connection.
    At the opposite end 11 of the sleeve 1, a cylindrical extension 12 is provided which surrounds the plastic sheath 5, without hindering their rotation. For this purpose, the extension 12 may be coated inside with Teflon or another material.
    In the central region of the sleeve 1, a receiving chamber 13 is provided which is limited to the extension 12 out by a stop 17. The draw-in spring 4 has a thickened end 14, which is formed by a pressed end sleeve 15, which is supported on the stop 17.
    A passage opening 16 makes it possible to insert the tie rod 4 with the already pressed end sleeve 15 in the manufacture of the device from the first end 8 ago in the sleeve 1.
    In the embodiment variant of FIGS. 4 to 6, a pulling stocking 18 is pressed into the sleeve 1 instead of the draw-in spring. A mounting sleeve 19 is provided to build a corresponding counter-pressure during pressing. An axially loadable disc 20 serves as an axial sliding bearing to facilitate the rotation. In this embodiment, the receptacle 7a is formed here as a hook.
    The advantage of this embodiment is also that when pulling back, so the actual feeding the cable can use the device so that the cable is held by the pull stocking and can rotate accordingly.
    权利要求:
    Claims (19)
    [1]
    A device for pulling in cables or the like, comprising a substantially cylindrical sleeve (1) having at a first end (8) a first opening (9) for connection to a retraction element, preferably a retraction spring (2), wherein at one of the first end (8) opposite the second end (11) of the sleeve (1) a flexible Einziehfederspitze (3) is mounted, consisting of a tie rod (4) with a plastic sheath (5) and a head piece (6) with a Receiving (7, 7a) consists of a cable to be recovered, characterized in that the tie rod (4) is freely rotatably and captively received in the sleeve (1).
    [2]
    2. Apparatus according to claim 1, characterized in that at the second end (11) of the sleeve (1) a plastic sheath (5) partially overlapping extension (12) is provided.
    [3]
    3. Apparatus according to claim 1 or 2, characterized in that the sleeve (1) in a central portion has a receiving chamber (13) for a thickened end portion (14) of the tie rod (4).
    [4]
    4. Device according to one of claims 1 to 3, characterized in that the plastic sheath (5) to the tie rod (4) is executed overmolded.
    [5]
    5. Device according to one of claims 1 to 4, characterized in that the receptacle (7 a) is designed as a hook.
    [6]
    6. Device according to one of claims 1 to 4, characterized in that the receptacle (7) is designed as an eyelet.
    [7]
    7. Device according to one of claims 1 to 4, characterized in that the receptacle (7) is designed as a releasable connection, preferably a thread.
    [8]
    8. Device according to one of claims 1 to 7, characterized in that in the first opening one end of a draw-in spring (2) is pressed.
    [9]
    9. Device according to one of claims 1 to 8, characterized in that the connection to the draw-in spring (2) is designed as an internal thread (10).
    [10]
    10. Device according to one of claims 1 to 9, characterized in that the tie rod (4) at its in the sleeve (1) received end a pressed-end sleeve (15).
    [11]
    11. Device according to one of claims 1 to 10, characterized in that the sleeve (1) in the axial region has a passage opening (16).
    [12]
    12. Device according to one of claims 1 to 11, characterized in that the plastic sheath (5) partially overlapping extension is separated by a release layer of the plastic sheath (5).
    [13]
    13. Device according to one of claims 1 to 12, that between the sleeve (1) and the tie rod (4) is provided in the axial direction resilient disc (20).
    [14]
    14. Device according to one of claims 1 to 13, characterized in that at the first end (8) of the cylindrical sleeve (1), a pull-stocking (18) is pressed.
    [15]
    15. The apparatus according to claim 14, characterized in that mounted on a to be introduced into the sleeve portion of the pull stocking (18) has a fastening sleeve (19), is preferably pressed.
    [16]
    16. Device according to one of claims 1 to 15, characterized in that the draw-in spring (2) is a preferably twisted plastic spring.
    [17]
    17. A method for producing a device for pulling cables, in which at a tie rod (4) an end sleeve (15) is applied, then the tie rod (4) is inserted into a sleeve (1) until the ferrule (15) a stop (17) of the sleeve (1) is applied, after which a receptacle (7, 7a) for a cable to be recovered and a plastic sheath (5) are applied to the tie rod (4).
    [18]
    18. The method according to claim 17, characterized in that the tie rod (4) is encapsulated by plastic.
    [19]
    19. The method according to claim 18, characterized in that during encapsulation also by an annular extension of the sleeve (1) surrounded space is filled without causing a firm connection of the plastic with the sleeve (1). 2014 03 07 Ba
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    同族专利:
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    EP3114739A1|2017-01-11|
    HUE044023T2|2019-09-30|
    WO2015132388A1|2015-09-11|
    ES2715675T3|2019-06-05|
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    PL3114739T3|2019-10-31|
    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    WO2003012948A1|2001-08-02|2003-02-13|International Business Machines Corporation|A device for preventing cable damage during installation|
    WO2006027400A1|2004-08-05|2006-03-16|Estiare, S.A.|Cable lead-through|
    KR100786374B1|2007-06-20|2007-12-14|최부일|Apparatus for laying cable in channel|
    DE2744230A1|1977-09-30|1979-04-12|Siemens Ag|Attachment for pulling optical cable during installation - has slotted nut and swivel lug preventing twisting while pulling wire|
    US4453291A|1982-06-21|1984-06-12|Harvey Hubbell Incorporated|Grip for pulling fiber optic cable|
    US5395091A|1993-08-30|1995-03-07|Craddock; Gary D.|Tool and method for installing a cable|
    US8413961B2|2009-01-09|2013-04-09|Belkin International Inc.|Cable pulling cap, method of manufacture, and method of use|
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    TW201934002A|2017-11-10|2019-09-01|美商米沃奇電動工具公司|Fish stick assembly|
    法律状态:
    2020-11-15| MM01| Lapse because of not paying annual fees|Effective date: 20200307 |
    优先权:
    申请号 | 申请日 | 专利标题
    ATA50171/2014A|AT515474B1|2014-03-07|2014-03-07|Device for pulling in cables|ATA50171/2014A| AT515474B1|2014-03-07|2014-03-07|Device for pulling in cables|
    PL15708812T| PL3114739T3|2014-03-07|2015-03-06|Device for pulling in cables|
    ES15708812T| ES2715675T3|2014-03-07|2015-03-06|Device for cable tension introduction|
    HUE15708812A| HUE044023T2|2014-03-07|2015-03-06|Device for pulling in cables|
    DK15708812.1T| DK3114739T3|2014-03-07|2015-03-06|DEVICE FOR CABLE WITHDRAWAL|
    EP15708812.1A| EP3114739B1|2014-03-07|2015-03-06|Device for pulling in cables|
    PCT/EP2015/054736| WO2015132388A1|2014-03-07|2015-03-06|Device for pulling in cables|
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