Roof antenna

Abstract

A roof antenna comprises an antenna base with a base plate, a rod, a drive mechanism mounted on the rod, and a locking element. The locking element has two limbs, each with a hook. The limbs extend through an opening in the base plate. A translational movement of the drive mechanism on the rod is converted into a movement of the locking element in a direction perpendicular to the base plate. Figure to be published with the abbreviation: Fig. 1

Description

Title of the invention: Roof antenna

[0001] The present patent application relates to a roof antenna and a method for mounting a roof antenna.

[0002] Roof antennas intended for mounting on the roof of a motor vehicle are known in the prior art. For their mounting, many known roof antennas require access from both the upper and lower sides of the roof. However, access from the lower side of the roof is frequently complicated due to trim that is fitted in that area.

[0003] One problem of the present invention is to provide a roof antenna. Another problem of the present invention is to specify a method for mounting a roof antenna.

[0004] A roof antenna according to the present invention comprises an antenna base with a base plate, a rod, a drive device arranged on the rod, and a locking element. The locking element has two limbs, each with a snap hook. The limbs extend through an opening in the base plate. A translational movement of the drive device on the rod is transformed into a displacement of the locking element in a direction perpendicular to the base plate. This roof antenna can advantageously be mounted on the external side of a roof without requiring access from the internal side of the roof. This is achieved because the antenna base of this roof antenna can be locked to the roof by means of the locking element. In this case, the locking element can be locked from the external side of the roof by means of the rod and the drive device.

[0005] In one embodiment of the roof antenna, the locking element members can be flexibly deployed by a translational movement of the drive device on the rod. Advantageously, the deployment of the locking element members supports the locking of the antenna base to a roof. A particular advantage arising from this is that the antenna base of this roof antenna can be arranged particularly simply on a mounting opening in a roof, as long as the locking element members of the roof antenna are not deployed. As a result of the subsequent deployment of the locking element members, the antenna base of the roof antenna can be stably anchored to the mounting opening.

[0006] In one embodiment of the roof antenna, the drive device is arranged between the members of the locking element. Advantageously, this results in a particularly simple construction in which a translational movement The movement of the drive device on the rod can be converted into a displacement of the locking element in the direction of travel. An arrangement of the drive device between the members of the locking element advantageously and particularly simply allows the members of the locking element to be flexibly deployed by a translational movement of the drive device on the rod.

[0007] In one embodiment of the roof antenna, the drive device has two pins. In this case, each member of the locking element has an elongated hole. In each case, one pin is guided in each of the elongated holes. Advantageously, the drive device and the locking element are coupled to each other by the pins, which are guided in the elongated holes of the locking element, such that a translational movement of the drive device is transformed into a displacement of the locking element in the direction of travel. In this case, the relationship between the translational movement of the drive device and the displacement of the locking element can advantageously be determined by the orientation of the elongated holes and the direction of the translational movement of the drive device.

[0008] In one embodiment of the roof antenna, a longitudinal direction of the rod forms an angle of less than 90 degrees with a longitudinal direction of the elongated holes and an angle of less than 90 degrees with the direction of movement. In this case, the longitudinal direction of the rod determines the direction of the translational movement of the drive device. As a result of this orientation of the longitudinal direction of the rod, the longitudinal direction of the elongated holes, and the direction of movement, it is advantageously achieved that a translational movement of the drive device is reliably transformed into a displacement of the locking element in the direction of movement.

[0009] In one embodiment of the roof antenna, the locking element members in the unconstrained state are arranged such that the spacing between the members is smaller at a first longitudinal end of the elongated holes than at a second longitudinal end of the elongated holes. Advantageously, this provides a simple design option for achieving flexible deployment of the locking element members by a translational movement of the drive device along the rod. In this case, the drive device presses the locking element members apart as it migrates from the second longitudinal end of the elongated holes toward the first longitudinal end of the elongated holes.

[0010] In one embodiment of the roof antenna, the antenna has a cover. In this case, the rod, the drive mechanism, and the locking element are arranged between the base plate and the cover. The cover has an opening through which the rod is accessible. Advantageously, this access to the rod allows the antenna base of the roof antenna to be locked onto a mounting opening in a roof from the outside. For this purpose, the rod is rotated to move the drive mechanism in a translational manner and thus achieve a displacement of the locking element in the direction of travel.

[0011] In one embodiment of the roof antenna, a socket with an inner wall is arranged in the opening in the cover. In this case, the roof antenna comprises a cap with an outer wall and a bar. The cap can be arranged in the socket. The bar can be screwed into the cap. Advantageously, the opening in the cover of this roof antenna thus also serves to secure the bar.

[0012] In one embodiment of the roof antenna, a first splined shaft profile is formed on the inner wall of the socket. A second splined shaft profile, which fits into the first splined shaft profile, is formed on the outer wall of the plug. Advantageously, the first and second splined shaft profiles provide anti-torsion protection for the plug arranged in the socket. This allows the rod to be screwed into the plug without the plug rotating within the socket.

[0013] In one embodiment of the roof antenna, at least one O-ring is arranged on the outer wall of the cap. Advantageously, this results in a seal of the opening in the cover against the environment of the roof antenna. Consequently, it is ensured that the roof antenna remains sufficiently sealed even when the bar is removed, for example, in a car wash.

[0014] In one embodiment of the roof antenna, the cap has a retaining ring that locks the cap into the socket when the rod is screwed into the cap. Advantageously, this prevents the rod and cap from being inadvertently removed from the socket when the cap is positioned in the socket and the rod is screwed into the cap. At the same time, it becomes possible to remove the cap from the socket when the rod is not screwed into the cap. Consequently, the roof antenna can be removed.

[0015] In one embodiment of the roof antenna, the antenna base has at least one male connector, which is accessible through the opening in the base plate. This male connector enables electrical contact with the roof antenna. Advantageously, the electrical contact with the roof antenna can have location before the antenna base is arranged and locked onto a mounting opening in a roof.

[0016] A method for mounting a roof antenna of the type mentioned above comprises the steps of arranging the antenna base on a mounting opening such that the locking elements extend through the mounting opening, and rotating the rod to move the locking element by means of the drive device so that the locking hooks of the locking element bear against an edge of the mounting opening. Advantageously, this method allows the roof antenna to be mounted without requiring access from the opposite side of the mounting opening.

[0017] In one embodiment of the method, it includes the additional steps of fitting the cap into the socket and screwing the rod into the cap. Advantageously, as a result, the opening in the roof antenna cover is sealed and the roof antenna is fully mounted.

[0018] In one embodiment of the method, it includes a step, prior to the placement of the antenna base on the mounting opening, consisting of connecting at least one cable to at least one male connector of the roof antenna. Advantageously, this provides electrical contact for the roof antenna.

[0019] The characteristics, features, and advantages of this invention described above are explained in more detail below, in conjunction with the figures. In the figures, a schematic representation is shown in each case. [Fig.l]: [Fig.l] shows a partial cross-sectional side view of an antenna base of a roof antenna before mounting;

[0020] [Fig.2] :1a [Fig.2] shows a perspective representation of a roof antenna drive device;

[0021] [Fig.3] :1a [Fig.3] shows a perspective representation of a roof antenna locking element;

[0022] [Fig.4] :1a [Fig.4] shows a partial cross-sectional side view of the antenna base arranged on a mounting opening in a front roof with a locking mechanism;

[0023] [Fig.5] :1a [Fig.5] shows an additional partial cross-sectional view of the antenna base arranged on the mounting opening before locking;

[0024] [Fig.6] :1a [Fig.6] shows a partial cross-sectional side view of the antenna base arranged on the mounting opening after locking;

[0025] [Fig.7] :1a [Fig.7] shows an additional partial cross-sectional view of the antenna base arranged on the mounting opening after locking;

[0026] [Fig.8]: [Fig.8] shows a partial cross-sectional representation of a roof antenna cover with an opening, a socket arranged in the opening and a plug which can be arranged in the socket;

[0027] [Fig.9] :1a [Fig.9] shows a cross-sectional view of the opening in the cover with the sleeve and the plug arranged in the sleeve;

[0028] [Fig. 10] :1a [Fig. 10] shows a partial cross-sectional view of the opening in the cover, the socket, the plug, and a rod of the roof antenna screwed into the plug; and

[0029] [Fig. 11] :1a [Fig. 11] shows a partial cross-sectional representation of the roof antenna mounted on the mounting opening in the roof.

[0030] Figure 1 shows a slightly schematic, partial cross-sectional side view of a portion of a roof antenna 10. The roof antenna 10 can be supplied for mounting on the roof of a motor vehicle, for example. The roof antenna 10 can be supplied, for example, for radio reception and, additionally or alternatively, for transmitting mobile radio signals.

[0031] Fig. 1 shows a portion of an antenna base 20 of the roof antenna 10 and a portion of a roof 40 with a mounting opening 41, onto which the roof antenna 10 is to be mounted. The roof 40 can be, for example, the roof of a motor vehicle. An upper or outer side of the roof 40 is shown.

[0032] The antenna base 20 has a base plate 100 with a substantially planar lower side. The base plate may be made of, for example, a plastic material. The base plate 100 may be formed in one piece or from several sub-elements. The base plate 100 has an opening 110. A sealing ring 120 bordering the opening 110 in an annular manner is provided on the lower side of the base plate 100. However, it is also possible to dispense with the sealing ring 120. A support 130 is formed on an upper side of the base plate 100, opposite the lower side of the base plate 100.

[0033] The antenna base 20 further comprises a cover 600. The cover 600 may be made of, for example, a plastic material. The cover 600 is arranged on the upper side of the base plate 100 such that an internal region 25 of the antenna base 20 is enclosed between the base plate 100 and the cover 600. The support 130 is arranged in the internal region 25 of the antenna base 20. The internal region 25 of the antenna base 20 is accessible through the opening 110 in the base plate 100. The cover 600 also has an opening 610, through which the internal region 25 of the antenna base 20 is accessible.

[0034] A circuit board 200 is arranged in the internal region 25 of the antenna base 20. The circuit board 200 may be in the form of a printed circuit board (PCB), for example. The circuit board 200 may have electrically conductive traces and electrical components and structural elements, for example. Furthermore, in the example of the antenna base 20 of the roof antenna 10 shown in [Fig. 1], a first male connector 210 and a second male connector 220 are connected to the circuit board 200. However, it is also possible that only one male connector or more than two male connectors may be provided. The first male connector 210 and the second male connector 220 extend through the opening 110 in the base plate 100 and are therefore accessible from outside the antenna base 20.

[0035] To mount the roof antenna 10 onto the mounting opening 41 in the roof 40, the first male connector 210 and the second male connector 220 of the antenna base 20 are, in a first step, connected to a first cable 50 by means of a coupling portion of the first male connector 51 and to a second cable 52 by means of a coupling portion of the second male connector 53. The cables 50, 52, which are connected to the coupling portions of the male connectors 51, 53, produce electrical connections to components of the motor vehicle. The cables 50, 52 extend out of the vehicle interior through the mounting opening 41 in the roof 40, such that the coupling portions of the male connectors 51, 53, which are connected to the cables 50, 52, are accessible on the external side of the roof 40.Therefore, it is possible to connect the first male connector coupling part 51, which is connected to the first cable 50, to the first male connector 210 of the antenna base 20 and to connect the second male connector coupling part 53, which is connected to the second cable 52, to the second male connector 220 of the antenna base 20, before the antenna base 20 of the roof antenna 10 is placed on the roof 40.

[0036] A rod 300 is arranged in the internal region 25 of the antenna base 20. The rod 300 is in the form of a threaded rod with a rod thread 310, which is not shown in detail in the figures. The rod 300 has a longitudinal direction 330 and is held on the support 130 by means of a retaining ring 320 such that the rod 300 can be rotated about a longitudinal axis parallel to its longitudinal direction 330. At one longitudinal end, the rod 300 has a drive profile 360, which may be in the form of an internal hexagon, for example. The drive profile 360 ​​of the rod 300 is accessible from outside the antenna base 20 through the opening 610 in the cover 600.

[0037] A drive device 400 is arranged on the rod 300. [Fig. 2] shows an enlarged perspective view of the drive device 400 without the other components of the roof antenna 10. The drive device 400 is in the form of a rod nut and, for this purpose, has a through opening 430 with an internal thread 440, which is not shown in detail in [Fig. 2]. The internal thread 440 of the drive device 400 is formed to fit the rod thread 310 of the rod 300. The drive device 400 is arranged on the rod 300 in such a way that the rod 300 extends through the through opening 430 of the drive device 400. As a result, a rotary movement of the rod 300 around its axis of rotation, which is parallel to its longitudinal direction 330, is converted into a translational movement of the drive device 400 along the longitudinal direction 330 of the rod 300.

[0038] On its external side, the drive device has a first spindle 410 and a second spindle 420 which is collinear with the first spindle 410, which second spindle 420 is opposite the first spindle 410. The first spindle 410 and the second spindle 420 are oriented perpendicularly to the longitudinal direction 330 of the rod 300.

[0039] Fig. 1 shows that, in addition, a locking element 500 is arranged in the internal region 25 of the antenna base 20. The locking element 500 is held on the support 130 in such a way that the locking element 500 can be moved along a direction of displacement 540 oriented perpendicular to the base plate 100.

[0040] [Fig.1] shows a cross-sectional representation of the locking element 500. [Fig.3] shows a perspective representation of the entire locking element 500 without the other components of the roof antenna 10.

[0041] The locking element 500 has an elastically deformable material, for example, a metal. The locking element 500 can be made from sheet metal, for example. [Fig. 3] shows the locking element 500 in an unconstrained state 501, in which the locking element 500 is not flexibly deformed.

[0042] The locking element 500 has a first member 510 and a second member 520 which is bilaterally symmetrical with respect to the first member 510. The mirror plane is oriented parallel to the direction of movement 540. The first member 510 and the second member 520 of the locking element 500 are connected to each other via a connecting section 550. From the connecting section 550, the members 510, 520 extend substantially parallel to the direction of movement 540. At a snap-fit ​​end 560 of the locking element 500, opposite the connecting section 550, the first member 510 and the second member 520 of the locking element 500 are free. As a result, a basic, substantially U-shaped form of the 500 locking element is produced.

[0043] The first member 510 has a first ratchet hook 511 at the ratchet end 560 of the locking element 500. The second member 520 has a second ratchet hook 521 at the ratchet end 560 of the locking element 500. The locking hooks 511, 521 each extend outwards away from the plane of symmetry of the locking element 500.

[0044] The first member 510 of the locking element 500 has a first elongated hole 512. Correspondingly, the second member 520 of the locking element 500 has a second elongated hole 522. The first elongated hole 512 has a first longitudinal end 513 and a second longitudinal end 514. The second elongated hole 522 has a first longitudinal end 523 and a second longitudinal end 524. In this case, the elongated holes 512, 522 each extend along a longitudinal direction 530.

[0045] The first member 510 and the second member 520 are not oriented exactly parallel to each other. Instead, a first spacing 531 of the members 510, 520 measured between the first longitudinal end 513 of the first elongated hole 512 and the first longitudinal end 523 of the second elongated hole 522 is smaller than a second spacing 532 of the members 510, 520 measured between the second longitudinal end 514 of the first elongated hole 512 and the second longitudinal end 524 of the second elongated hole 522.

[0046] The [Fig. [1] shows that the locking element 500 is arranged in the internal region 25 of the antenna base 20 such that the drive device 400 is arranged between the members 510, 520 of the locking element 500. The first pin 410 of the drive device 400 is guided in the first elongated hole 512 of the first member 510 of the locking element 500. The second pin 420 of the drive device 400 is guided in the second elongated hole 522 of the second member 520 of the locking element 500. Consequently, the locking element 500 is mechanically coupled to the drive device 400 such that a translational movement of the drive device 400 on the rod 300 causes a displacement of the locking element 500 in the direction of displacement 540 perpendicular to the base plate. 100.The snap-on end 560 of the members 510, 520 of the locking element 500 with the snap-on hooks 511, 521 protrudes out of the internal region 25 of the antenna base 20 through the opening 110 in the base plate 100.

[0047] Figures 4 and 5 show a perspective and, in each case, partial cross-sectional representations of the antenna base 20 during the mounting of the antenna base 20 on the mounting opening 41 in the roof 40 in a mounted state following chronologically the representation in [Fig. 1]. In this case, Figures 4 and 5 show views from different viewing directions.

[0048] After connecting the male connectors 210, 220 of the antenna base 20 to the cables 50, 52, as described with reference to [Fig. 1], the antenna base 20 was arranged on the mounting opening 41 in the roof 40 such that the side The lower edge of the base plate 100 faces the outer side of the roof 40, and the opening 110 in the base plate 100 is aligned with the mounting opening 41 in the roof 40. In the example shown in the figures, the male connectors 210 and 220 of the antenna base 20 extend through the mounting opening 41 in the roof 40. However, this is not strictly necessary. The mounting opening 41 in the roof 40 and the opening 110 in the base plate 100 of the antenna base 20 are sealed from the outside by the peripheral sealing ring 120. However, it is also possible to omit the sealing ring 120.

[0049] The antenna base 20 has been arranged on the mounting opening 41 in the roof 40 such that the members 510, 520 of the locking element 500 extend through the mounting opening 41 in the roof 40 and the snap-on end 560 of the locking element 500, with the snap-on hooks 511, 521 arranged on the members 510, 520, are located on the inner side of the roof 40.

[0050] In the situation shown in Figures 4 and 5, the antenna base 20 of the roof antenna 10 is always in a pre-assembled state. In this case, the drive device 400 is positioned on the rod 300 such that the first pin 410 of the drive device 400 is arranged near the second longitudinal end 514 in the first elongated hole 512 of the locking element 500 and the second pin 420 of the drive device 400 is arranged near the second longitudinal end 524 in the second elongated hole 522 of the locking element 500. The locking element 500 is in the unconstrained state 501, which is explained above with reference to [Fig. 3].In this unconstrained state 501 of the locking element 500, the spacing of the members 510, 520 at the snap-on end 560 of the locking element 500 is dimensioned such that the snap-on end 560 can be guided through the mounting opening 41 in the roof 40 despite the snap-on hooks 511, 521 formed at the snap-on end 560. The spacing of the two snap-on hooks 511, 521 of the locking element 500 is therefore smaller than the diameter of the mounting opening 41 in the roof 40.

[0051] The longitudinal direction 330 of the rod 300 forms a first angle 340 with the longitudinal direction 530 of the elongated holes 512, 522 of the locking element 500. In the example shown, the first angle 340 is less than 90 degrees. Furthermore, the longitudinal direction 330 of the rod 300 forms a second angle 350 with the direction of movement 540 of the locking element 500. In the example shown in the figures, the second angle 350 is also less than 90 degrees. As a result of this orientation of the rod 300 and the elongated holes 512, 522 of the locking element 500 relative to each other, the following is obtained: The locking element 500 can be moved in the direction of travel 540 by means of the drive device 400.

[0052] If the rod 300 is rotated from the pre-assembled state shown in Figures 4 and 5 in such a way that the drive device 400, which is arranged on the rod 300, moves along the longitudinal direction 330 of the rod 300, the pins 410, 420 of the drive device 400, which are guided in the elongated holes 512, 522 of the locking element 500, move from the second longitudinal ends 514, 524 of the elongated holes 512, 522 in the direction of the first longitudinal ends 513, 523 of the elongated holes 512, 522 of the locking element 500.In this case, as a consequence of the orientation of the longitudinal direction 330 of the rod 300 and the longitudinal direction 530 of the elongated holes 512, 522 relative to each other, the locking element 500 is lifted in the direction of movement 540 such that the snap hooks 511, 521 of the locking element 500 are pulled in the direction of the mounting opening 41.

[0053] Simultaneously with the movement of the locking element 500 in the direction of movement 540, the members 510, 520 of the locking element 500 are flexibly deployed by the drive device 400. The second spacing 532 between the members 510, 520 of the locking element 500, measured between the second longitudinal ends 514, 524 of the elongated holes 512, 522 of the locking element 500, corresponds, in the unconstrained state 501 of the locking element 500, approximately to the width of the drive device 400 arranged between the members 510, 520. By contrast, the first spacing 531 of the members 510, 520, measured at the first longitudinal ends 513, 523 of the elongated holes 512, 522, in the unconstrained state 501 of the locking element 500, is smaller than the width of the drive device 400.If the drive device 400 is moved translationally along the rod 300, such that the pins 410, 420 of the drive device 400 in the elongated holes 512, 522 of the locking element 500 migrate from the second longitudinal ends 514, 524 in the direction of the first longitudinal ends 513, 523, then the drive device 400 presses the members 510, 520 of the locking element 500 to spread them apart flexibly, such that the first spacing 531 of the members 510, 520, measured between the first longitudinal ends 513, 523 of the elongated holes 512, 522, increases. The locking element 500 is brought, in this case, from its unconstrained state 501 to a deployed state 502.

[0054] As a result of the deployment of members 510, 520 of the locking element 500, the spacing between the first latching hook 511, which is arranged on the first member 510, and the second latching hook 521, which is arranged on the second member 520, also increases. In the fully deployed state 502 of the locking element 500, the members 510, 520 of the locking element 500 are deployed in such a way that the snap hooks 511, 521 come to rest on an edge 42 of the mounting opening 41 in the roof 40.

[0055] The rotation of the rod 300 around its axis of rotation, which is parallel to its longitudinal direction 330, can take place by means of a suitable tool 60, which is inserted through the opening 610 in the cover 600 of the antenna base 20 in the internal region 25 of the antenna base 20 and engages with the drive profile 360 ​​of the rod 300. The tool 60 can be a screwdriver, for example, having a drive profile that fits with the drive profile 360 ​​of the rod 300.

[0056] Figures 6 and 7 show partial cross-sectional perspective views of the antenna base 20, which is arranged on the mounting opening 41 in the roof 40, in a situation following chronologically the representation of Figures 4 and 5. In this case, Figures 6 and 7 show views from different viewing directions.

[0057] In the situation shown in Figures 6 and 7, the drive device 400 has been moved translationally on the rod 300, by rotation of the rod 300, to the point that the pins 410, 420 of the drive device 400 are now arranged near the first longitudinal ends 513, 523 in the elongated holes 512, 522 of the locking element 500. As a result of the translational movement of the drive device 400, the locking element 500 has been moved in the direction of displacement 540 to the point that the snap hooks 511, 521 now bear against the edge 42 of the mounting opening 41 on the lower side of the roof 40 and, consequently, fix the antenna base 20 on the roof 40.At the same time, members 510, 520 of the locking element 500 were deployed to the point that the two snap hooks 511, 521 of the locking element 500 came to rest on facing sections of the edge 42 of the mounting opening 41 in the roof 40.

[0058] In the mounted state shown in Figures 6 and 7, the antenna base 20 can no longer be removed from the mounting opening 41 in the roof 40, without first moving the drive device 400 on the rod 300 in such a way that the pins 410, 420 of the drive device 400 are moved from the first longitudinal ends 513, 523 of the elongated holes 512, 522 of the locking element 500 in the direction of the second longitudinal ends 514, 524.

[0059] Figure 8 shows an enlarged, partial cross-sectional representation of the opening 610 in the cover 600 of the antenna base 20 of the roof antenna 10. A socket 700 is arranged in the opening 610 in the cover 600. The socket 700 may be made of, for example, metal. The socket 700 is securely inserted into the opening 610 in the cover 600, so that a permanent and tight connection is produced between the 700 socket and the 600 cover. For this purpose, the 700 socket may have suitable anchoring structures, for example an external hexagon, on an external wall.

[0060] The sleeve 700 has a continuous opening with an internal wall 710. Consequently, the opening 610 in the cover 600 provides access to the internal region 25 of the antenna base 20 even with the sleeve 700 arranged in the opening 610. For the rotation of the rod 300 described above, the tool 60 used for this purpose can be inserted through the opening 610 in the cover 600 and into the sleeve 700 arranged in the opening 610.

[0061] In the example shown, the inner wall 710 of the sleeve 700 has a first splined shaft profile 711. However, it is possible to dispense with the first splined shaft profile 711. In addition, the inner wall 710 of the sleeve 700 has a first peripheral groove 720.

[0062] The electroconductive socket 700 is electrically connected to an associated contact surface of the circuit board 200 via a contact spring 730 which is arranged in the internal region 25 of the antenna base 20.

[0063] After fixing the antenna base 20 of the roof antenna 10 to the roof 40, it is advisable to seal the opening 610 in the cover 600, in order to prevent the entry of dirt and moisture into the internal region 25 of the antenna base 20. For this purpose, a plug 800 is arranged in the socket 700. The plug 800 has an electrically conductive material, for example a metal. The plug 800 has a basic cylindrical shape with an outer wall 810. The plug 800 can be pushed into the socket 700, which is arranged in the opening 610 in the cover 600, from the outer side of the antenna base 20. [Fig. 8] shows a representation with the plug 800 only partially pushed into the socket 700. [Fig. 9] shows a schematic cross-sectional side view of the plug 800 pushed fully into the socket 700.

[0064] In the example shown in [Fig. 8], the plug 800 has, on its outer wall 810, a second splined shaft profile 811, which is formed to fit the first splined shaft profile 711 of the sleeve 700. As a result of the first splined shaft profile 711 and the second splined shaft profile 811, the plug 800, which is arranged in the sleeve 700, is prevented from twisting about a longitudinal axis of the sleeve 700 and the plug 800. This anti-torsion protection can, however, also be achieved in a way other than by means of the first splined shaft profile 711 and the second splined shaft profile 811. In this case, it is possible to dispense with the splined shaft profiles 711 and 811.

[0065] The stopper 800 is formed in a closed manner, as a result of which the opening 610 in the cover 600 is sealed by the stopper 800. In order to also obtain A seal is provided between the inner wall 710 of the sleeve 700 and the outer wall 810 of the plug 800. One or more peripheral O-rings 820 may be provided on the outer wall 810 of the plug 800. In the example shown in the figures, the plug 800 has three coaxially arranged O-rings 820. These O-rings 820 are each arranged in grooves extending around the outer wall 810 of the plug 800. However, more or fewer than three O-rings 820 may also be provided. The seal between the plug 800 and the sleeve 700 may also be achieved in another way.

[0066] At one outer longitudinal end, the cap 800 has a receiving opening 850 with a thread 860. The receiving opening 850 is provided to receive a rod 30, shown in [Fig. 9], of the roof antenna 10. The rod 30 may also be called the "antenna pole". The rod 30 has a thread 35, which can be screwed into the thread 860 of the receiving opening 850 in the cap 800.

[0067] The outer wall 810 of the plug 800 has a second groove 830. The second groove 830 is arranged on the outer wall 810 of the plug 800 such that the second groove 830 of the plug 800 is arranged concentrically with respect to the first groove 720 on the inner wall 710 of the sleeve 700 when the plug 800 is fully pushed into the sleeve 700. A peripheral retaining ring 840 is arranged in the second groove 830 of the plug 800. The second groove 830 has an opening, which extends from the outer wall 810 of the plug 800 to the bar receiving opening 850. A projection 845 of the retaining ring 840 extends through this opening and protrudes into the bar receiving opening 850. This can be seen on the [Fig.9].

[0068] After the plug 800 has been arranged in the sleeve 700, the bar 30 can be screwed into the plug 800. [Fig. 10] shows a representation of the opening 610 in the cover 600, the sleeve 700 arranged in the opening 610, the plug 800 arranged in the sleeve 700 and the strand 30 screwed into the bar receiving opening 850 in the plug 800.

[0069] As a consequence of the bar 30 being screwed into the bar receiving opening 850, the projection 845 of the retaining ring 840 protruding into the bar receiving opening 850 was pressed outwards from the bar receiving opening 850, with the result that the retaining ring 840 deformed elastically such that it now partially protrudes into the first groove 720 of the sleeve 700, which first groove 720 is arranged concentrically with respect to the second groove 830 of the plug 800. The result obtained is that the plug 800 is fixed in the sleeve 700 and is secured in case of unintentional traction. The 800 plug can therefore no longer be removed from the 700 socket without first unscrewing the 30 bar from the 800 plug.

[0070] There is an electroconductive connection from the bar 30 to the circuit board 200 of the roof antenna 10 via the plug 800, the socket 700 and the contact spring 730.

[0071] Figure 11 shows a schematic, perspective, and partial cross-sectional representation of the roof antenna 10 after it has been mounted on the mounting opening 41 in the roof 40. To remove the roof antenna 10, the mounting steps described above must be carried out in reverse order. Therefore, the bar 30 is first unscrewed. The plug 800 is then removed from the socket 700. Then, using the tool 60, the rod 300 can be screwed in such a way that the locking element 500 is moved along the direction of travel 540 so that the ratcheting hooks 511, 521 of the locking element 500 detach themselves from the edge 42 of the mounting opening 41 and the locking element 500 returns from its deployed state 502 to its unconstrained state 501. The antenna base 20 can then be lifted from the mounting opening 41 in the roof 40.

[0072] List of reference symbols

[0073] 10 roof antenna

[0074] 20 antenna base

[0075] 25 internal region

[0076] 30 bar

[0077] 35 thread

[0078] 40 roof

[0079] 41 mounting opening

[0080] 42 edge of the mounting opening

[0081] 50 first cable

[0082] 51 first part of male connector coupling

[0083] 52 second cable

[0084] 53 second part of male connector coupling

[0085] 60 tool

[0086] 100 base plate

[0087] 110 opening in the base plate

[0088] 120 sealing ring

[0089] 130 support

[0090] 200 circuit board

[0091] 210 first male connector

[0092] 220 second male connector

[0093] 300 rod

[0094] 310 rod thread

[0095] 320 fastening ring

[0096] 330 longitudinal direction of the rod

[0097] 340 first angle

[0098] 350 second angle

[0099] 360 training profile

[0100] 400 drive device

[0101] 410 first pin

[0102] 420 second pin

[0103] 430 through opening

[0104] 440 internal thread

[0105] 500 locking element

[0106] 501 unconstrained state

[0107] 502 deployed state

[0108] 510 first member

[0109] 511 first snap hook

[0110] 512 first elongated hole

[0111] 513 first longitudinal end of the first elongated hole

[0112] 514 second longitudinal end of the first elongated hole

[0113] 520 second member

[0114] 521 second snap hook

[0115] 522 second elongated hole

[0116] 523 first longitudinal end of the second elongated hole

[0117] 524 second longitudinal end of the second elongated hole

[0118] 530 longitudinal direction of elongated holes

[0119] 531 first limb spacing

[0120] 532 second limb spacing

[0121] 540 direction of movement

[0122] 550 connection section

[0123] 560 snap-on end

[0124] 600 cover

[0125] 610 opening in the cover

[0126] 700 socket

[0127] 710 inner wall

[0128] 711 first grooved shaft profile

[0129] 720 first groove

[0130] 730 contact spring

[0131] 800 cap

[0132]

[0133]

[0134]

[0135]

[0136]

[0137]

[0138]

[0139] 810 outer wall 811 second splined shaft profile 820 O-ring 830 second groove 840 retaining ring 845 projection 850 bar receiving opening 860 thread

Claims

Demands

1. A roof antenna (10) having an antenna base (20) with a base plate (100), a rod (300), a drive device (400) arranged on the rod (300), and a locking element (500), the locking element (500) having two members (510, 520), each having a snap hook (511, 521), the members (510, 520) extending through an opening (110) in the base plate (100), wherein a translational movement of the drive device (400) on the rod (300) is transformed into a displacement of the locking element (500) in a direction of movement (540) perpendicular to the base plate (100), the roof antenna (10) further having a cover (600), wherein the rod (300), the device The drive element (400) and the locking element (500) are arranged between the base plate (100) and the cover (600), the cover (600) having an opening (610),The rod (300) being accessible through the opening (610) in the cover (600), a sleeve (700) with an inner wall (710) being arranged in the opening (610) in the cover (600), and the roof antenna (10) comprising a cap (800) with an outer wall (810) and a bar (30), the cap (800) being able to be arranged in the sleeve (700), the bar (30) being able to be screwed into the cap (800).

2. The roof antenna (10) according to claim 1, wherein the members (510, 520) of the locking element (500) can be flexibly deployed by a translational movement of the drive device (400) on the rod (300).

3. The roof antenna (10) according to any one of the preceding claims, wherein the drive device (400) is arranged between the members (510, 520) of the locking element (500).

4. The roof antenna (10) according to claim 3, wherein the drive device (400) has two pins (410, 420), where each member (510, 520) of the locking element (500) has an elongated hole (512, 522) respectively, where in each case, a pin (410, 420) is guided in each of the elongated holes (512, 522).

5. The roof antenna (10) according to claim 4, where a longitudinal direction (330) of the rod (300) forms an angle (340) of less than 90 degrees with a longitudinal direction (530) of the elongated holes (512, 522) and an angle (350) of less than 90 degrees with the direction of displacement (540).

6. The roof antenna (10) according to any one of claims 3 to 5, where the members (510, 520) of the locking element (500) in the unconstrained state (501) are arranged such that a spacing (531, 532) of the members (510, 520) is smaller at a first longitudinal end (513, 523) of the elongated holes (512, 522) than at a second longitudinal end (514, 524) of the elongated holes (512, 522).

7. The roof antenna (10) according to any one of the preceding claims, where a first grooved shaft profile (711) is formed on the inner wall (710) of the bushing (700), where a second grooved shaft profile (811) which fits the first grooved shaft profile (711) is formed on the outer wall (810) of the plug (800).

8. The roof antenna (10) according to any of the preceding claims, where at least one O-ring (820) is arranged on the outer wall (810) of the plug (800).

9. The roof antenna (10) according to any one of the preceding claims, where the plug (800) has a retaining ring (840), which locks the plug (800) in the socket (700) when the bar (30) is screwed into the plug (800).

10. The roof antenna (10) according to any one of the preceding claims, where the antenna base (20) has at least one male connector (210, 220), which is accessible at the opening (110) in the base plate (100).

11. A method for mounting a roof antenna (10) according to any one of the preceding claims, the method having the following steps: - arrange the antenna base (20) on a mounting opening (41) in such a way that the members (510, 520) of the locking element (500) extend through the mounting opening (41); - rotate the rod (300) in order to move the locking element (500) by means of the drive device (400) in such a way that the snap hooks (511, 521) of the locking element (500) come to rest on an edge (42) of the mounting opening (41).

12. The method according to claim 11, where the roof antenna (10) is formed according to claim 1, the method comprising the following additional steps: - arrange the plug (800) in the socket (700); - screw the bar (30) into the cap (800).

13. The method according to any one of claims 11 and 12, wherein the roof antenna (10) is formed according to claim 10, the method comprising the following additional step, which precedes the arrangement of the antenna base (20) on the mounting opening (41): - connect at least one cable (50, 52) to at least one male connector (210, 220).

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