EP1088363A1 - Device for fixing a rod antenna - Google Patents

Device for fixing a rod antenna

Info

Publication number
EP1088363A1
EP1088363A1 EP99938163A EP99938163A EP1088363A1 EP 1088363 A1 EP1088363 A1 EP 1088363A1 EP 99938163 A EP99938163 A EP 99938163A EP 99938163 A EP99938163 A EP 99938163A EP 1088363 A1 EP1088363 A1 EP 1088363A1
Authority
EP
European Patent Office
Prior art keywords
antenna
slip clutch
rotating body
rod
screw thread
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP99938163A
Other languages
German (de)
French (fr)
Other versions
EP1088363B1 (en
Inventor
Uwe Militz
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Robert Bosch GmbH
Original Assignee
Robert Bosch GmbH
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 Robert Bosch GmbH filed Critical Robert Bosch GmbH
Publication of EP1088363A1 publication Critical patent/EP1088363A1/en
Application granted granted Critical
Publication of EP1088363B1 publication Critical patent/EP1088363B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q1/00—Details of, or arrangements associated with, antennas
    • H01Q1/12—Supports; Mounting means
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q1/00—Details of, or arrangements associated with, antennas
    • H01Q1/12—Supports; Mounting means
    • H01Q1/1207—Supports; Mounting means for fastening a rigid aerial element

Definitions

  • the invention is based on a device for fastening a rod antenna according to the preamble of the main claim.
  • a fastening device for an antenna is already known from the as yet unpublished German patent application with the file number 197 22 372.9, in which an antenna base comprises a screw bolt and the antenna base can be attached to a mounting surface by means of a locking nut.
  • the device according to the invention with the features of the main claim has the advantage that a rotatable slip clutch is provided in the antenna base, that the slip clutch cooperates with the screw thread so that a rotation of the screw thread occurs by a rotational movement of the slip clutch, and that a rotating body of the antenna base Slipping clutch is elastically encased, so that when the rotating body rotates to attach an antenna rod to the rod antenna via the screw thread on the mounting surface, the slip clutch is carried by the rotating body and slides over a screw thread of the rotating body over the slip clutch when the rotating body rotates to release the antenna rod attached to the fastening surface.
  • the antenna rod can be secured against unauthorized removal, since loosening of the antenna rod cannot be effected simply by a rotary movement of the rotating body, but additionally requires the use of a clamping tool.
  • the rotating body in the region of the slip clutch has elastic material that bears against the slip clutch.
  • an elastic covering of the slip clutch by the rotating body can be realized particularly easily and without additional material, so that no additional components, such as, for example, for guiding the sliding clutch through the rotating body when fastening the antenna rod to the fastening surface.
  • B. mechanical spring elements are required. This also saves costs.
  • FIG. 1 shows a section through a rod antenna with a device for fastening the rod antenna to a fastening surface
  • FIG. 2 shows a first exemplary embodiment of a fastening device according to the invention
  • FIG. 3 shows a second exemplary embodiment of an inventive Fastening device
  • Figure 4 shows a third embodiment of a fastening device according to the invention.
  • 1 denotes a rod antenna with an antenna rod 35 which is arranged coaxially with a screw thread 15 and is fixedly connected to the screw thread 15 via an axis of rotation 25.
  • the screw thread 15 is provided on a screw bolt 45, which can be screwed into a screw opening 50 of a fastening surface 5, so that the antenna rod 35 of the rod antenna 1 can be screwed onto the fastening surface 5.
  • the fastening surface 5 can be part of a vehicle body, for example. However, the mounting surface 5 also stands for any other attachment locations for rod antennas.
  • the screw thread 15 is part of an antenna base 10 of the rod antenna 1.
  • the antenna base 10 has a rotatable slip clutch 20, which thus with the
  • Screw thread 15 cooperates so that the screw thread 15 is rotated by a rotary movement of the slip clutch 20.
  • the slip clutch 20 can be provided coaxially with the screw thread 15 in the antenna base 10 and can be firmly connected to the screw thread 15 via the axis of rotation 25.
  • the antenna base 10 further comprises a rotary body 30, which concentrically surrounds the antenna rod 35 in the part of the rod antenna 1 facing the fastening surface 5, concentrically with the axis of rotation 25.
  • the slip clutch 20 is elastically enveloped by the rotating body 30.
  • the rod antenna 1 is screwed onto the fastening surface 5 as follows: The rotating body 30 is rotated in the direction of rotation required for screwing the antenna rod 35 to the mounting surface 5, the sliding clutch 20 being carried along by the rotating body 30 by the elastic covering of the slip clutch 20 and the screw 45 with the screw thread 15 in the Screwing the antenna rod 35 to the mounting surface 5 rotates the required direction.
  • the bolt 45 can thus be screwed into the screw opening 50.
  • a loosening of the rod antenna 1 from the mounting surface 5 is possible by a corresponding rotary movement of the antenna rod 35, which is firmly connected to the screw thread 15 via the axis of rotation 25, at the locations of the antenna rod 35 that are not enclosed by the rotating body 30.
  • the diameter of the antenna rod 35 is significantly smaller than that of the rotating body 30, especially in the area of the slip clutch 20, an increased effort is required for such a release of the rod antenna 1 from the fastening surface 5. This release process of the rod antenna 1 from the
  • FIG. 1 shows a cross section of the slip clutch 20 perpendicular to the axis of rotation 25 according to a first embodiment. Also shown is the elastic covering of the slip clutch 20 by the rotating body 30, which takes place in that the rotating body 30 in the area of
  • Slip clutch 20 has elastic material that abuts the slip clutch 20.
  • the slip clutch 20 has a ring of teeth 55 which are sawtooth-shaped against the direction of rotation for screwing the antenna rod 35 onto the fastening surface 5, this direction of rotation being marked by an arrow in FIG. 2.
  • the elastic material of the rotating body 30 lies against the tips of the teeth 55. If the rotating body 30 is now moved in the direction of rotation for screwing the antenna rod 35 to the fastening surface 5, the teeth 55 hook into the elastic material of the rotating body 30 and the slip clutch 20 can be carried along with the rotating body 30 in this direction of rotation.
  • the rotating body 30 If, on the other hand, the rotating body 30 is moved in the opposite direction of rotation to loosen the antenna rod 35 screwed to the fastening surface 5, the teeth 55 cannot hook into the elastic material of the rotating body 30. Rather, the elastic material of the rotating body 30 slides over the teeth 55, since the teeth 55 are curved in exactly this direction of rotation to release the antenna rod 35 from the fastening surface 5.
  • a clamping tool such as pliers
  • the rotating body 30 can be pressed against the sliding clutch 20 in the area of the sliding clutch 20, so that even when the rotating body 30 rotates to release the antenna rod 35 attached to the fastening surface 5, the rotating body 30 carries the sliding clutch 20 and in this way the screw bolt 45 is unscrewed from the screw opening 50.
  • FIG. 3 shows a second embodiment of a fastening device according to the invention.
  • the slip clutch 20 is elastically encased by mechanical spring elements 40.
  • the slip clutch 20 is, as in FIG.
  • the rotating body 30 now, at least in the area of the slip clutch 20, does not consist of elastic material but, for example, of a hard plastic sheath and is also not in contact with the slip clutch 20.
  • the mechanical spring elements 40 each comprise a web 65, which is rotatably connected to an inner wall 70 of the rotating body 30 via a swivel joint 60.
  • Each web 65 is additionally connected to the inner wall 70 by a spring 75.
  • the springs 75 are each arranged on the side of the associated web 65, which points in the direction of rotation of the rotating body 30 for screwing the antenna rod 35 onto the fastening surface 5. This direction of rotation is also shown in Figure 3 by an arrow.
  • the webs 65 extend into the area of
  • 8 teeth 55 are provided for the slip clutch 20. This number can be chosen larger or smaller as required.
  • a mechanical spring element 40 is provided for each tooth 55. However, fewer mechanical spring elements 40 can also be provided in order to save material. However, the load on the individual mechanical spring elements 40 is then increased when the antenna rod 35 is screwed onto the fastening surface 5.
  • Figure 4 shows a third embodiment of a fastening device according to the invention.
  • the slip clutch 20 is elastically encased by mechanical spring elements in the form of a mechanical sheet metal spring cage 80.
  • the slip clutch 20 is constructed as described in FIGS. 2 and 3 and is also shown in cross section.
  • the rotating body 30 in the exemplary embodiment according to FIG. 1 is also shown in cross section.
  • FIG. 4 at least in the area of the slip clutch 20, not made of elastic material but, for example, made of a hard plastic jacket, and also does not abut the slip clutch 20.
  • the mechanical sheet metal spring cage 80 bears against the inner wall 70 of the rotating body 30 and encloses it
  • Slip clutch 20 The webs 65 protrude from the mechanical sheet metal spring cage 80 into the area of the teeth 55 of the slip clutch 20.
  • the webs 65 are integrally connected to the mechanical sheet metal spring cage 80 and, like this, are formed, for example, from sheet metal.
  • the webs 65 are elastically connected to the sheet metal spring cage 80 and angled in the direction of rotation toward the inner wall 70 that is required for screwing the antenna rod 35 to the fastening surface 5 and is shown in FIG. 4 by an arrow.
  • the teeth 55 of the slip clutch 20, however, are curved against this direction of rotation. According to the description of the second exemplary embodiment, the webs 65 engage in the teeth 55 when the rotating body 30 is moved in the direction of rotation that is required for screwing the antenna rod 35 onto the fastening surface 5.
  • the slip clutch 20 is then rotated with the rotating body 30, as a result of which the screw bolt 45 is screwed into the screw opening 50 and the antenna rod 35 can be screwed onto the fastening surface 5. If the antenna rod 35 is screwed onto the fastening surface 5 and the rotating body 30 is moved in the direction of rotation required to loosen the screw connection, the webs 65 are pressed by the teeth 55 of the slip clutch 20 in the direction of the inner wall 70, so that the rotating body 30 with the mechanical sheet metal spring cage 80 can slide over the slip clutch 20 without the webs 65 getting caught with the teeth 55.
  • the mode of operation of the webs 65 according to the third exemplary embodiment is therefore the same as the mode of operation of the mechanical spring elements 40 according to the second exemplary embodiment, wherein the rotary joints 60 and the springs 75 can be saved in the third exemplary embodiment according to FIG.
  • FIG. 4 four webs 65 are shown with eight teeth 55 of the slip clutch 20, so that a web 65 is not provided for each tooth 55. However, more or fewer webs 65 can also be provided. If the rotating body 30 is moved in the direction of rotation to release the antenna rod 35 from the fastening surface 5, it can also be rotated in this direction of rotation with respect to the antenna rod 35, since in this case the rotating body 30 slides over the slip clutch 20.

Landscapes

  • Support Of Aerials (AREA)
  • Details Of Aerials (AREA)

Abstract

The invention relates to a device for fixing a rod antenna (1) on a mounting surface (5) by means of a screw connection, enabling a certain degree of anti-theft protection. To this end, the base (10) of the rod antenna (1) has a screw thread (15). A rotational slide coupling (20) is provided in the base of the antenna (10). The slide coupling (20) interacts with the screw thread (15) in such a way that a rotational movement of the slide coupling (20) causes a rotation of the screw thread (15). A rotational body (30) of the base (10) elastically surrounds the slide coupling (20) so that the slide coupling (20) is entrained by the rotational body (30) during a rotational movement of the rotational body (30) with the purpose of fixing the rod (35) of a rod antenna (1) on the mounting surface (5) by means of the screw thread (15) and the rotational body (30) slides on the slide coupling (20) during a rotational movement of the rotational body (30) with the purpose of releasing the antenna rod (35) fixed to the mounting surface (5) by means of the screw thread (15).

Description

Vorrichtung zur Befestigung einer StabantenneDevice for attaching a rod antenna
Stand der TechnikState of the art
Die Erfindung geht von einer Vorrichtung zur Befestigung einer Stabantenne nach der Gattung des Hauptanspruchs aus.The invention is based on a device for fastening a rod antenna according to the preamble of the main claim.
Aus der noch nicht vorveröffentlichten deutschen Patentanmeldung mit dem Aktenzeichen 197 22 372.9 ist bereits eine Befestigungsvorrichtung für eine Antenne bekannt, bei der ein Antennenfuß einen Schraubbolzen umfaßt und der Antennenfuß an einer Befestigungsfläche mittels einer Verriegelungsmutter befestigbar ist.A fastening device for an antenna is already known from the as yet unpublished German patent application with the file number 197 22 372.9, in which an antenna base comprises a screw bolt and the antenna base can be attached to a mounting surface by means of a locking nut.
Vorteile der ErfindungAdvantages of the invention
Die erfindungsgemäße Vorrichtung mit den Merkmalen des Hauptanspruchs hat demgegenüber den Vorteil, daß im Antennenfuß eine drehbare Rutschkupplung vorgesehen ist, daß die Rutschkupplung so mit dem Schraubgewinde zusammenwirkt, daß durch eine Drehbewegung der Rutschkupplung eine Verdrehung des Schraubgewindes erfolgt, und daß ein Drehkörper des Antennenfußes die Rutschkupplung elastisch umhüllt, so daß bei einer Drehbewegung des Drehkörpers zur Befestigung eines Antennenstabes der Stabantenne über das Schraubgewinde an der Befestigungsfläche die Rutschkupplung vom Drehkörper mitgeführt wird und bei einer Drehbewegung des Drehkörpers zum Lösen des an der Befestigungsfläche befestigten Antennenstabes über das Schraubgewinde der Drehkörper über die Rutschkupplung gleitet. Auf diese Weise läßt sich der Antennenstab gegen unbefugtes Entfernen sichern, da ein Lösen des Antennenstabes nicht einfach durch eine Drehbewegung des Drehkörpers bewirkt werden kann, sondern zusätzlich den Einsatz eines Klemmwerkzeuges erfordert .The device according to the invention with the features of the main claim has the advantage that a rotatable slip clutch is provided in the antenna base, that the slip clutch cooperates with the screw thread so that a rotation of the screw thread occurs by a rotational movement of the slip clutch, and that a rotating body of the antenna base Slipping clutch is elastically encased, so that when the rotating body rotates to attach an antenna rod to the rod antenna via the screw thread on the mounting surface, the slip clutch is carried by the rotating body and slides over a screw thread of the rotating body over the slip clutch when the rotating body rotates to release the antenna rod attached to the fastening surface. In this way, the antenna rod can be secured against unauthorized removal, since loosening of the antenna rod cannot be effected simply by a rotary movement of the rotating body, but additionally requires the use of a clamping tool.
Durch die in den Unteransprüchen aufgeführten Maßnahmen sind vorteilhafte Weiterbildungen und Verbesserungen der im Hauptanspruch angegebenen Vorrichtung möglich.Advantageous further developments and improvements of the device specified in the main claim are possible through the measures listed in the subclaims.
Besonders vorteilhaft ist es, daß der Drehkörper im Bereich der Rutschkupplung elastisches Material aufweist, das an der Rutschkupplung anliegt. Auf diese Weise läßt sich eine elastische Umhüllung der Rutschkupplung durch den Drehkörper besonders einfach und ohne zusätzlichen Materialaufwand realisieren, so daß zur Führung der Rutschkupplung durch den Drehkörper bei der Befestigung des Antennenstabes an der Befestigungsfläche keine zusätzlichen Bauteile, wie z. B. mechanische Federelemente erforderlich sind. Somit werden auch Kosten eingespart .It is particularly advantageous that the rotating body in the region of the slip clutch has elastic material that bears against the slip clutch. In this way, an elastic covering of the slip clutch by the rotating body can be realized particularly easily and without additional material, so that no additional components, such as, for example, for guiding the sliding clutch through the rotating body when fastening the antenna rod to the fastening surface. B. mechanical spring elements are required. This also saves costs.
Zeichnungdrawing
Ausführungsbeispiele der Erfindung sind in der Zeichnung dargestellt und in der nachfolgenden Beschreibung näher erläutert. Es zeigen Figur 1 einen Schnitt durch eine Stabantenne mit einer Vorrichtung zur Befestigung der Stabantenne an einer Befestigungsfläche, Figur 2 ein erstes Ausführungsbeispiel einer erfindungsgemäßen Befestigungsvorrichtung, Figur 3 ein zweites Ausführungsbeispiel einer erfindungsgemäßen Befestigungsvorrichtung und Figur 4 ein drittes Ausführungsbeispiel einer erfindungsgemäßen Befestigungsvorrichtung .Embodiments of the invention are shown in the drawing and explained in more detail in the following description. 1 shows a section through a rod antenna with a device for fastening the rod antenna to a fastening surface, FIG. 2 shows a first exemplary embodiment of a fastening device according to the invention, and FIG. 3 shows a second exemplary embodiment of an inventive Fastening device and Figure 4 shows a third embodiment of a fastening device according to the invention.
Beschreibung der AusführungsbeispieleDescription of the embodiments
In Figur 1 kennzeichnet 1 eine Stabantenne mit einem Antennenstab 35, der koaxial zu einem Schraubgewinde 15 angeordnet und über eine Drehachse 25 fest mit dem Schraubgewinde 15 verbunden ist. Das Schraubgewinde 15 ist dabei auf einem Schraubbolzen 45 vorgesehen, der in eine Schrauböffnung 50 einer Befestigungsfläche 5 eingedreht werden kann, so daß der Antennenstab 35 der Stabantenne 1 an der Befestigungsfläche 5 festgeschraubt werden kann. Die Befestigungsfläche 5 kann dabei beispielsweise Teil einer Fahrzeugkarosserie sein. Die Befestigungsfläche 5 steht jedoch auch für beliebige andere Anbringungsorte für Stabantennen. Das Schraubgewinde 15 ist Teil eines Antennenfußes 10 der Stabantenne 1. Der Antennenfuß 10 weist eine drehbare Rutschkupplung 20 auf, die so mit demIn FIG. 1, 1 denotes a rod antenna with an antenna rod 35 which is arranged coaxially with a screw thread 15 and is fixedly connected to the screw thread 15 via an axis of rotation 25. The screw thread 15 is provided on a screw bolt 45, which can be screwed into a screw opening 50 of a fastening surface 5, so that the antenna rod 35 of the rod antenna 1 can be screwed onto the fastening surface 5. The fastening surface 5 can be part of a vehicle body, for example. However, the mounting surface 5 also stands for any other attachment locations for rod antennas. The screw thread 15 is part of an antenna base 10 of the rod antenna 1. The antenna base 10 has a rotatable slip clutch 20, which thus with the
Schraubgewinde 15 zusammenwirkt, daß durch eine Drehbewegung der Rutschkupplung 20 eine Verdrehung des Schraubgewindes 15 erfolgt. Dazu kann wie im Beispiel von Figur 1 dargestellt die Rutschkupplung 20 koaxial zum Schraubgewinde 15 im Antennenfuß 10 vorgesehen und über die Drehachse 25 fest mit dem Schraubgewinde 15 verbunden sein. Der Antennenfuß 10 umfaßt weiterhin einen Drehkörper 30, der konzentrisch zur Drehachse 25 den Antennenstab 35 in dem der Befestigungsfläche 5 zugewandten Teil der Stabantenne 1 umhüllt. Die Rutschkupplung 20 wird dabei vom Drehkörper 30 elastisch umhüllt.Screw thread 15 cooperates so that the screw thread 15 is rotated by a rotary movement of the slip clutch 20. For this purpose, as shown in the example in FIG. 1, the slip clutch 20 can be provided coaxially with the screw thread 15 in the antenna base 10 and can be firmly connected to the screw thread 15 via the axis of rotation 25. The antenna base 10 further comprises a rotary body 30, which concentrically surrounds the antenna rod 35 in the part of the rod antenna 1 facing the fastening surface 5, concentrically with the axis of rotation 25. The slip clutch 20 is elastically enveloped by the rotating body 30.
Das Festschrauben der Stabantenne 1 an der Befestigungsfläche 5 wird wie folgt realisiert: Der Drehkörper 30 wird in die zur Verschraubung des Antennenstabes 35 mit der Befestigungsfläche 5 erforderlichen Drehrichtung gedreht, wobei durch die elastische Umhüllung der Rutschkupplung 20 durch den Drehkörper 30 die Rutschkupplung 20 vom Drehkörper 30 mitgeführt wird und den Schraubbolzen 45 mit dem Schraubgewinde 15 in der zum Festschrauben des Antennenstabes 35 an der Befestigungsfläche 5 erforderlichen Richtung dreht. Der Schraubbolzen 45 kann so in der Schrauböffnung 50 festgeschraubt werden. Ist die Stabantenne 1 an der Befestigungsfläche 5 festgeschraubt, so führt eine Drehbewegung des Drehkörpers 30 in einer Drehrichtung zum Herausschrauben des Schraubbolzen 45 aus der Schrauböffnung 50 und damit zum Lösen des an der Befestigungsfläche 5 befestigten Antennenstabes 35 zum Gleiten des Drehkörpers 30 über die Rutschkupplung 20. Die Rutschkupplung 20 wird in diesem Fall nicht vom Drehkörper 30 mitgeführt, so daß auch der Schraubbolzen 45 nicht aus der Schrauböffnung 50 herausgedreht wird und die Stabantenne 1 weiterhin an der Befestigungsfläche 5 festgeschraubt bleibt. Ein Lösen der Stabantenne 1 von der Befestigungsfläche 5 ist zwar durch eine entsprechende Drehbewegung des Antennenstabes 35, der mit dem Schraubgewinde 15 über die Drehachse 25 fest verbunden ist, an den Stellen des Antennenstabes 35 möglich, die nicht vom Drehkörper 30 umschlossen sind. Da jedoch der Durchmesser des Antennenstabes 35 deutlich kleiner als der des Drehkörpers 30 vor allem im Bereich der Rutschkupplung 20 ist, ist ein erhöhter Kraftaufwand für ein solches Lösen der Stabantenne 1 von der Befestigungsfläche 5 erforderlich. Dieser Lösungsvorgang der Stabantenne 1 aus derThe rod antenna 1 is screwed onto the fastening surface 5 as follows: The rotating body 30 is rotated in the direction of rotation required for screwing the antenna rod 35 to the mounting surface 5, the sliding clutch 20 being carried along by the rotating body 30 by the elastic covering of the slip clutch 20 and the screw 45 with the screw thread 15 in the Screwing the antenna rod 35 to the mounting surface 5 rotates the required direction. The bolt 45 can thus be screwed into the screw opening 50. If the rod antenna 1 is screwed tightly to the fastening surface 5, a rotary movement of the rotating body 30 in one direction of rotation leads to the screwing bolt 45 being unscrewed from the screw opening 50 and thus to the antenna rod 35 fastened to the fastening surface 5 being loosened for the rotating body 30 to slide over the slip clutch 20 In this case, the slip clutch 20 is not carried along by the rotating body 30, so that the screw bolt 45 is not unscrewed from the screw opening 50 and the rod antenna 1 continues to be screwed to the fastening surface 5. A loosening of the rod antenna 1 from the mounting surface 5 is possible by a corresponding rotary movement of the antenna rod 35, which is firmly connected to the screw thread 15 via the axis of rotation 25, at the locations of the antenna rod 35 that are not enclosed by the rotating body 30. However, since the diameter of the antenna rod 35 is significantly smaller than that of the rotating body 30, especially in the area of the slip clutch 20, an increased effort is required for such a release of the rod antenna 1 from the fastening surface 5. This release process of the rod antenna 1 from the
Befestigungsfläche 5 wird zusätzlich erschwert, wenn der Antennenstab 35 eine metallische Oberfläche aufweist, die nicht so griffig ist wie beispielsweise eine KunststoffOberfläche des Drehkörpers 30. Figur 2 zeigt einen Querschnitt der Rutschkupplung 20 senkrecht zur Drehachse 25 gemäß einem ersten Ausführungsbeispiel. Dargestellt ist auch die elastische Umhüllung der Rutschkupplung 20 durch den Drehkörper 30, die dadurch erfolgt, daß der Drehkörper 30 im Bereich derMounting surface 5 is additionally made more difficult if the antenna rod 35 has a metallic surface that is not as easy to grip as, for example, a plastic surface of the rotating body 30. Figure 2 shows a cross section of the slip clutch 20 perpendicular to the axis of rotation 25 according to a first embodiment. Also shown is the elastic covering of the slip clutch 20 by the rotating body 30, which takes place in that the rotating body 30 in the area of
Rutschkupplung 20 elastisches Material aufweist, das an der Rutschkupplung 20 anliegt. Die Rutschkupplung 20 weist einen Kranz von Zähnen 55 auf, die sägezahnförmig gegen die Drehrichtung zum Festschrauben des Antennenstabes 35 an der Befestigungsfläche 5 gekrümmt sind, wobei diese Drehrichtung durch einen Pfeil in Figur 2 markiert ist. Das elastische Material des Drehkörpers 30 liegt an den Spitzen der Zähne 55 an. Wird nun der Drehkörper 30 in die Drehrichtung zum Festschrauben des Antennenstabes 35 an der Befestigungsfläche 5 bewegt, so haken sich die Zähne 55 im elastischen Material des Drehkörpers 30 ein und die Rutschkupplung 20 kann mit dem Drehkörper 30 in dieser Drehrichtung mitgeführt werden. Wird hingegen der Drehkörper 30 in entgegengesetzter Drehrichtung zum Lösen des an der Befestigungsfläche 5 festgeschraubten Antennenstabes 35 bewegt, so können die Zähne 55 nicht im elastischen Material des Drehkörpers 30 einhaken. Vielmehr gleitet das elastische Material des Drehkörpers 30 über die Zähne 55 hinweg, da die Zähne 55 genau in dieser Drehrichtung zum Lösen des Antennenstabes 35 von der Befestigungsfläche 5 gekrümmt sind. Durch Verwendung eines Klemmwerkzeuges, beispielsweise einer Zange, kann der Drehkörper 30 im Bereich der Rutschkupplung 20 gegen diese gedrückt werden, so daß auch bei einer Drehbewegung des Drehkörpers 30 zum Lösen des an der Befestigungsfläche 5 befestigten Antennenstabes 35 der Drehkörper 30 die Rutschkupplung 20 mitführt und auf diese Weise der Schraubbolzen 45 aus der Schrauböffnung 50 herausgedreht wird. Auf diese Weise wird ein gewisser Diebstahlschutz erreicht, da zum Entfernen der Stabantenne 1 von der Befestigungsfläche 5 zur Vermeidung von übermäßigem Kraftaufwand eine Zange erforderlich ist. Andererseits ist dadurch sichergestellt, daß der Antennenstab sich überhaupt von der Befestigungsfläche 5 lösen läßt. Dies ist z. B. dann von Vorteil, wenn der Antennenstab 35 defekt ist und ausgetauscht werden soll.Slip clutch 20 has elastic material that abuts the slip clutch 20. The slip clutch 20 has a ring of teeth 55 which are sawtooth-shaped against the direction of rotation for screwing the antenna rod 35 onto the fastening surface 5, this direction of rotation being marked by an arrow in FIG. 2. The elastic material of the rotating body 30 lies against the tips of the teeth 55. If the rotating body 30 is now moved in the direction of rotation for screwing the antenna rod 35 to the fastening surface 5, the teeth 55 hook into the elastic material of the rotating body 30 and the slip clutch 20 can be carried along with the rotating body 30 in this direction of rotation. If, on the other hand, the rotating body 30 is moved in the opposite direction of rotation to loosen the antenna rod 35 screwed to the fastening surface 5, the teeth 55 cannot hook into the elastic material of the rotating body 30. Rather, the elastic material of the rotating body 30 slides over the teeth 55, since the teeth 55 are curved in exactly this direction of rotation to release the antenna rod 35 from the fastening surface 5. By using a clamping tool, such as pliers, the rotating body 30 can be pressed against the sliding clutch 20 in the area of the sliding clutch 20, so that even when the rotating body 30 rotates to release the antenna rod 35 attached to the fastening surface 5, the rotating body 30 carries the sliding clutch 20 and in this way the screw bolt 45 is unscrewed from the screw opening 50. In this way, a certain theft protection is achieved, since to remove the rod antenna 1 from the mounting surface 5 to avoid excessive Force tongs are required. On the other hand, this ensures that the antenna rod can be detached from the mounting surface 5 at all. This is e.g. B. then advantageous if the antenna rod 35 is defective and is to be replaced.
Figur 3 zeigt ein zweites Ausführungsbeispiel für eine erfindungsgemäße Befestigungsvorrichtung. Dabei erfolgt die elastische Umhüllung der Rutschkupplung 20 durch mechanische Federelemente 40. Die Rutschkupplung 20 ist dabei, wie inFigure 3 shows a second embodiment of a fastening device according to the invention. The slip clutch 20 is elastically encased by mechanical spring elements 40. The slip clutch 20 is, as in FIG
Figur 2 beschrieben, aufgebaut und ebenfalls im Querschnitt dargestellt. Der Drehkörper 30 besteht nun zumindest im Bereich der Rutschkupplung 20 nicht aus elastischem Material sondern beispielsweise aus einem harten Kunststoffmantel und liegt auch nicht an der Rutschkupplung 20 an. Die mechanischen Federelemente 40 umfassen jeweils einen Steg 65, der über ein Drehgelenk 60 drehbar mit einer Innenwand 70 des Drehkörpers 30 verbunden ist. Jeder Steg 65 ist zusätzlich durch eine Feder 75 mit der Innenwand 70 verbunden. Die Federn 75 sind dabei jeweils auf der Seite des zugehörigen Steges 65 angeordnet, die in die Drehrichtung des Drehkörpers 30 zum Festschrauben des Antennenstabes 35 an der Befestigungsfläche 5 weist. Diese Drehrichtung ist auch in Figur 3 durch einen Pfeil dargestellt. Die Stege 65 reichen bis in den Bereich derFigure 2 described, constructed and also shown in cross section. The rotating body 30 now, at least in the area of the slip clutch 20, does not consist of elastic material but, for example, of a hard plastic sheath and is also not in contact with the slip clutch 20. The mechanical spring elements 40 each comprise a web 65, which is rotatably connected to an inner wall 70 of the rotating body 30 via a swivel joint 60. Each web 65 is additionally connected to the inner wall 70 by a spring 75. The springs 75 are each arranged on the side of the associated web 65, which points in the direction of rotation of the rotating body 30 for screwing the antenna rod 35 onto the fastening surface 5. This direction of rotation is also shown in Figure 3 by an arrow. The webs 65 extend into the area of
Zähne 55 hinein. Wird der Drehkörper 30 in der Drehrichtung, die zum Festschrauben des Antennenstabes 35 an der Befestigungsflache 5 erforderlich ist, bewegt, so greifen die Stege 65 in die Zähne 55, wobei die zugehörigen Federn 75 gedehnt werden. Durch die Federkraft der Federn 75 wird dann die Rutschkupplung 20 mit dem Drehkörper 30 mitgedreht, wodurch der Schraubbolzen 45 in die Schrauböffnung 50 eingedreht und der Antennenstab 35 an der Befestigungsfläche 5 festgeschraubt werden kann. Ist der Antennenstab 35 an der Befestigungsfläche 5 festgeschraubt und wird der Drehkörper 30 in die Drehrichtung bewegt, die zum Lösen der Schraubverbindung erforderlich ist, so werden die Stege 65 von den Zähnen 55 der Rutschkupplung 20 in Richtung zur Innenwand 70 gedrückt, so daß der Drehkörper 30 über die Rutschkupplung 20 gleiten kann, ohne daß sich die Stege 65 mit den Zähnen 55 verhaken.Teeth 55 into it. If the rotating body 30 is moved in the direction of rotation that is required for screwing the antenna rod 35 onto the fastening surface 5, the webs 65 engage in the teeth 55, the associated springs 75 being stretched. Due to the spring force of the springs 75, the slip clutch 20 is then rotated with the rotating body 30, as a result of which the screw bolt 45 is screwed into the screw opening 50 and the antenna rod 35 can be screwed onto the fastening surface 5. Is the antenna rod 35 screwed to the mounting surface 5 and the rotating body 30 moved in the direction of rotation, which is required to loosen the screw connection, the webs 65 are pressed by the teeth 55 of the slip clutch 20 towards the inner wall 70, so that the rotating body 30 can slide over the slip clutch 20 without the webs Hook 65 with teeth 55.
Gemäß Figur 2 und Figur 3 sind jeweils 8 Zähne 55 für die Rutschkupplung 20 vorgesehen. Diese Zahl kann je nach Bedarf größer oder kleiner gewählt werden. Gemäß Figur 3 ist für jeden Zahn 55 ein mechanisches Federelement 40 vorgesehen. Es können jedoch auch weniger mechanische Federelemente 40 vorgesehen sein, um Material zu sparen. Die Belastung an den einzelnen mechanischen Federelementen 40 wird dann jedoch beim Festschrauben des Antennenstabes 35 an der Befestigungsfläche 5 erhöht.According to FIG. 2 and FIG. 3, 8 teeth 55 are provided for the slip clutch 20. This number can be chosen larger or smaller as required. According to FIG. 3, a mechanical spring element 40 is provided for each tooth 55. However, fewer mechanical spring elements 40 can also be provided in order to save material. However, the load on the individual mechanical spring elements 40 is then increased when the antenna rod 35 is screwed onto the fastening surface 5.
Figur 4 zeigt ein drittes Ausführungsbeispiel für eine erfindungsgemäße Befestigungsvorrichtung. Dabei erfolgt die elastische Umhüllung der Rutschkupplung 20 durch mechanische Federelemente in Form eines mechanischen Blechfederkäfigs 80. Die Rutschkupplung 20 ist dabei wie in Figur 2 und 3 beschrieben aufgebaut und ebenfalls im Querschnitt dargestellt. Wie auch beim zweiten Ausführungsbeispiel besteht der Drehkörper 30 beim Ausführungsbeispiel gemäßFigure 4 shows a third embodiment of a fastening device according to the invention. The slip clutch 20 is elastically encased by mechanical spring elements in the form of a mechanical sheet metal spring cage 80. The slip clutch 20 is constructed as described in FIGS. 2 and 3 and is also shown in cross section. As in the second exemplary embodiment, the rotating body 30 in the exemplary embodiment according to FIG
Figur 4 zumindest im Bereich der Rutschkupplung 20 nicht aus elastischem Material sondern beispielsweise aus einem harten Kunststoffmantel und liegt auch nicht an der Rutschkupplung 20 an. An der Innenwand 70 des Drehkörpers 30 liegt der mechanische Blechfederkäfig 80 an und umschließt dieFIG. 4, at least in the area of the slip clutch 20, not made of elastic material but, for example, made of a hard plastic jacket, and also does not abut the slip clutch 20. The mechanical sheet metal spring cage 80 bears against the inner wall 70 of the rotating body 30 and encloses it
Rutschkupplung 20. Vom mechanischen Blechfederkäfig 80 ragen vier Stege 65 in den Bereich der Zähne 55 der Rutschkupplung 20 hinein. Die Stege 65 sind dabei einstückig mit dem mechanischen Blechfederkäfig 80 verbunden und wie dieser beispielsweise aus Blech gebildet. Die Stege 65 sind elastisch mit dem Blechfederkäfig 80 verbunden und in diejenige Drehrichtung zur Innenwand 70 hin abgewinkelt, die zum Festschrauben des Antennenstabes 35 an der Befestigungsfläche 5 erforderlich und in Figur 4 durch einen Pfeil dargestellt ist. Die Zähne 55 der Rutschkupplung 20 hingegen sind entgegen dieser Drehrichtung gekrümmt. Gemäß der Beschreibung des zweiten Ausführungsbeispiels greifen die Stege 65 in die Zähne 55, wenn der Drehkörper 30 in der Drehrichtung, die zum Festschrauben des Antennenstabes 35 an der Befestigungsflache 5 erforderlich ist, bewegt wird. Auf diese Weise wird dann die Rutschkupplung 20 mit dem Drehkörper 30 mitgedreht, wodurch der Schraubbolzen 45 in die Schrauböffnung 50 eingedreht und der Antennenstab 35 an der Befestigungsfläche 5 festgeschraubt werden kann. Ist der Antennenstab 35 an der Befestigungsfläche 5 festgeschraubt und wird der Drehkörper 30 in die Drehrichtung bewegt, die zum Lösen der SchraubVerbindung erforderlich ist, so werden die Stege 65 von den Zähnen 55 der Rutschkupplung 20 in Richtung zur Innenwand 70 gedrückt, so daß der Drehkörper 30 mit dem mechanischen Blechfederkäfig 80 über die Rutschkupplung 20 gleiten kann, ohne daß sich die Stege 65 mit den Zähnen 55 verhaken. Die Wirkungsweise der Stege 65 gemäß dem dritten Ausführungsbeispiel ist daher die gleiche, wie die Wirkungsweise der mechanischen Federelemente 40 gemäß dem zweiten Ausführungsbeispiel, wobei beim dritten Ausführungsbeispiel gemäß Figur 4 die Drehgelenke 60 und die Federn 75 eingespart werden können.Slip clutch 20. Four webs 65 protrude from the mechanical sheet metal spring cage 80 into the area of the teeth 55 of the slip clutch 20. The webs 65 are integrally connected to the mechanical sheet metal spring cage 80 and, like this, are formed, for example, from sheet metal. The webs 65 are elastically connected to the sheet metal spring cage 80 and angled in the direction of rotation toward the inner wall 70 that is required for screwing the antenna rod 35 to the fastening surface 5 and is shown in FIG. 4 by an arrow. The teeth 55 of the slip clutch 20, however, are curved against this direction of rotation. According to the description of the second exemplary embodiment, the webs 65 engage in the teeth 55 when the rotating body 30 is moved in the direction of rotation that is required for screwing the antenna rod 35 onto the fastening surface 5. In this way, the slip clutch 20 is then rotated with the rotating body 30, as a result of which the screw bolt 45 is screwed into the screw opening 50 and the antenna rod 35 can be screwed onto the fastening surface 5. If the antenna rod 35 is screwed onto the fastening surface 5 and the rotating body 30 is moved in the direction of rotation required to loosen the screw connection, the webs 65 are pressed by the teeth 55 of the slip clutch 20 in the direction of the inner wall 70, so that the rotating body 30 with the mechanical sheet metal spring cage 80 can slide over the slip clutch 20 without the webs 65 getting caught with the teeth 55. The mode of operation of the webs 65 according to the third exemplary embodiment is therefore the same as the mode of operation of the mechanical spring elements 40 according to the second exemplary embodiment, wherein the rotary joints 60 and the springs 75 can be saved in the third exemplary embodiment according to FIG.
Gemäß Figur 4 sind vier Stege 65 dargestellt bei acht Zähnen 55 der Rutschkupplung 20, so daß nicht für jeden Zahn 55 ein Steg 65 vorgesehen ist. Es können jedoch auch mehr oder weniger Stege 65 vorgesehen sein. Wird der Drehkörper 30 in der Drehrichtung zum Lösen des Antennenstabes 35 von der Befestigungsfläche 5 bewegt, so ist er in dieser Drehrichtung auch drehbar gegenüber dem Antennenstab 35, da der Drehkörper 30 in diesem Fall über die Rutschkupplung 20 gleitet. According to FIG. 4, four webs 65 are shown with eight teeth 55 of the slip clutch 20, so that a web 65 is not provided for each tooth 55. However, more or fewer webs 65 can also be provided. If the rotating body 30 is moved in the direction of rotation to release the antenna rod 35 from the fastening surface 5, it can also be rotated in this direction of rotation with respect to the antenna rod 35, since in this case the rotating body 30 slides over the slip clutch 20.

Claims

Pctansprüche Claims
1. Vorrichtung zur Befestigung einer Stabantenne (1) an einer Befestigungsfläche (5) mittels einer Schraubverbindung, wobei ein Antennenfuß (10) der1. Device for fastening a rod antenna (1) to a fastening surface (5) by means of a screw connection, with an antenna base (10)
Stabantenne (1) ein Schraubgewinde (15) aufweist, dadurch gekennzeichnet, daß im Antennenfuß (10) eine drehbare Rutschkupplung (20) vorgesehen ist, daß die Rutschkupplung (20) so mit dem Schraubgewinde (15) zusammenwirkt, daß durch eine Drehbewegung der Rutschkupplung (20) eine Verdrehung des Schraubgewindes (15) erfolgt, und daß ein Drehkörper (30) des Antennenfußes (10) die Rutschkupplung (20) elastisch umhüllt, so daß bei einer Drehbewegung des Drehkörpers (30) zur Befestigung eines Antennenstabes (35) der Stabantenne (1) über das Schraubgewinde (15) an der Befestigungsfläche (5) die Rutschkupplung (20) vom Drehkörper (30) mitgeführt wird und bei einer Drehbewegung des Drehkörpers (30) zum Lösen des an der Befestigungsfläche (5) befestigten Antennenstabes (35) über das Schraubgewinde (15) der Drehkörper (30) über die Rutschkupplung (20) gleite . Rod antenna (1) has a screw thread (15), characterized in that a rotatable slip clutch (20) is provided in the antenna base (10) such that the slip clutch (20) interacts with the screw thread (15) in such a way that a rotational movement of the slip clutch (20) a rotation of the screw thread (15) takes place, and that a rotating body (30) of the antenna base (10) elastically envelops the slip clutch (20) so that when the rotating body (30) rotates to fasten an antenna rod (35) Rod antenna (1) via the screw thread (15) on the fastening surface (5), the slipping clutch (20) is carried by the rotating body (30) and when the rotating body (30) rotates to loosen the antenna rod (35) fastened to the fastening surface (5) ) over the screw thread (15) of the rotating body (30) over the slip clutch (20).
2. Vorrichtung nach Anspruch 1, dadurch gekennzeichnet, daß die Rutschkupplung (20) koaxial zum Schraubgewinde (15) im Antennenfuß (10) vorgesehen ist und daß die Rutschkupplung2. Device according to claim 1, characterized in that the slip clutch (20) is provided coaxially to the screw thread (15) in the antenna base (10) and that the slip clutch
(20) über eine Drehachse (25) fest mit dem Schraubgewinde (15) verbunden ist.(20) is firmly connected to the screw thread (15) via an axis of rotation (25).
3. Vorrichtung nach Anspruch 1 oder 2, dadurch gekennzeichnet, daß die elastische Umhüllung der Rutschkupplung (20) durch mechanische Federelemente (40) erfolgt.3. Apparatus according to claim 1 or 2, characterized in that the elastic covering of the slip clutch (20) by mechanical spring elements (40).
4. Vorrichtung nach Anspruch 1, 2 oder 3, dadurch gekennzeichnet, daß der Drehkörper (30) im Bereich der Rutschkupplung (20) elastisches Material aufweist, das an der Rutschkupplung (20) anliegt.4. Apparatus according to claim 1, 2 or 3, characterized in that the rotating body (30) in the region of the slip clutch (20) has elastic material which rests on the slip clutch (20).
5. Vorrichtung nach Anspruch 4, dadurch gekennzeichnet, daß bei einer Drehbewegung des Drehkörpers (30) zum Lösen des an der Befestigungsfläche (5) befestigten Antennenstabes (35) der Drehkörper (30) mittels eines Klemmwerkzeuges, insbesondere einer Zange, gegen die Rutschkupplung (20) drückbar ist, so daß die Rutschkupplung (20) vom Drehkörper (30) mitgeführt wird.5. The device according to claim 4, characterized in that upon a rotary movement of the rotating body (30) for releasing the antenna rod (35) attached to the fastening surface (5) of the rotating body (30) by means of a clamping tool, in particular pliers, against the slip clutch ( 20) can be pressed so that the slip clutch (20) is carried along by the rotating body (30).
6. Vorrichtung nach einem der vorherigen Ansprüche, dadurch gekennzeichnet, daß der Antennenstab (35) koaxial zum Schraubgewinde (15) angeordnet ist und daß der Antennenstab (35) über die Drehachse (25) fest mit dem Schraubgewinde (15) verbunden ist. 6. Device according to one of the preceding claims, characterized in that the antenna rod (35) is arranged coaxially to the screw thread (15) and that the antenna rod (35) via the axis of rotation (25) is fixedly connected to the screw thread (15).
EP99938163A 1998-06-19 1999-06-10 Device for fixing a rod antenna Expired - Lifetime EP1088363B1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE19827406 1998-06-19
DE19827406A DE19827406C1 (en) 1998-06-19 1998-06-19 Rod antenna attaching arrangement for e.g. vehicle body mounting
PCT/DE1999/001702 WO1999067850A1 (en) 1998-06-19 1999-06-10 Device for fixing a rod antenna

Publications (2)

Publication Number Publication Date
EP1088363A1 true EP1088363A1 (en) 2001-04-04
EP1088363B1 EP1088363B1 (en) 2002-06-05

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ID=7871440

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EP99938163A Expired - Lifetime EP1088363B1 (en) 1998-06-19 1999-06-10 Device for fixing a rod antenna

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EP (1) EP1088363B1 (en)
JP (1) JP4308435B2 (en)
KR (1) KR100634720B1 (en)
DE (2) DE19827406C1 (en)
ES (1) ES2178454T3 (en)
WO (1) WO1999067850A1 (en)

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102005017576A1 (en) * 2005-04-16 2006-10-19 Volkswagen Ag Antenna for motor vehicle e.g. land vehicle, has rod with rod thread corresponding to base thread to connect rod and base, and blocking unit to block rotation movement for unscrewing rod, which is screwed into base thread, from base thread
FR2897600B1 (en) * 2006-02-21 2010-05-14 Tecumseh Europe Sa MOUNTING FACADES ON A HOUSING
KR200458174Y1 (en) * 2009-02-23 2012-01-25 주식회사 신흥기공 Health machine
DE202015103632U1 (en) * 2015-07-10 2015-08-07 Josef Fellinger Train-push rod

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Publication number Priority date Publication date Assignee Title
KR0120714Y1 (en) * 1995-07-28 1998-08-01 배순훈 Antenna socket of car audio
US5642972A (en) * 1995-11-06 1997-07-01 Southco, Inc. One-direction captive screw fastener
DE29705308U1 (en) * 1997-03-24 1997-06-19 Wirthschaft, Friedrich, 47839 Krefeld Short rod antenna for motor vehicles
DE19722372A1 (en) * 1997-05-28 1998-12-03 Bosch Gmbh Robert Fastening device for a device

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See references of WO9967850A1 *

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DE19827406C1 (en) 1999-08-05
ES2178454T3 (en) 2002-12-16
KR20010052845A (en) 2001-06-25
JP4308435B2 (en) 2009-08-05
DE59901646D1 (en) 2002-07-11
WO1999067850A1 (en) 1999-12-29
KR100634720B1 (en) 2006-10-17
JP2002519879A (en) 2002-07-02
EP1088363B1 (en) 2002-06-05

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