Abstract:
The invention concerns a roof-mounted bicycle hodler for vehicles. The bicycle holder comprises profiled carrier ( 1 ) on which a bicycle ( 9 ) is intended to be positioned in an upright position, first and second fastening devices ( 2  and  3 , respectively) on said profiled carrier ( 1 ) for securing said profiled carrier ( 1 ) on first and second load carrier rails ( 4  and  5 , respectively), said rails being attached to said vehicle roof ( 6 ), and a holding arm ( 15 ) pivotally mounted on said profiled carrier ( 1 ) for pivotal movement essentially between a release position and a securing position in which said holding arm ( 15 ) is attachable to the frame of the bicycle ( 9 ). The holding arm ( 9 ) is kinetically connected to a stop member ( 19 ) arranged, in response to the pivotal movements of the holding arm ( 15 ), to be shifted between a blocking position associated with the securing position of the holding arm ( 15 ) and a release position associated with the release position of the holding arm ( 15 ), said stop member ( 19 ) while in its blocking position securing the attachment of the first fastening device ( 2 ) to respectively the profiled carrier ( 1 ) and the first load-carrier rail ( 4 ) and while in its release position allowing said fastening devices to move apart.

Description:
TECHNICAL FIELD 
     The present invention relates to a roof-mounted bicycle holder for vehicles, said bicycle holder comprising a profiled carrier on which a bicycle is intended to be positioned in an upright position, first and second fastening devices on said profiled carrier for securing said profiled carrier on first and second load-carrier rails, respectively, said rails being attached to said vehicle roof, and a holding arm pivotally mounted on said profiled carrier for pivotal movement essentially between a release position and a securing position in which said holding arm is attachable to the bicycle frame. 
     BACKGROUND OF THE INVENTION 
     A bicycle holder of the kind described above conventionally comprises an elongate profiled carrier intended to be positioned in the longitudinal direction of the vehicle and to be fastened to a first and a second load-carrier rail, said rails being attached to the vehicle roof, often close to the lateral vehicles edges. 
     Usually, the bicycle holder is initially fastened by means of the elongate profiled carrier and thereafter the bicycle is fastened to the profiled carrier. The fastening devices could be of a variety of different kinds. One common construction of bicycle holders comprises a profiled carrier arranged so as to be clamped about the front and the rear load-carrier, and a stay means, which is pivotally fastened to the front load-carrier rail. In this position, the stay means may be pivoted upwards and be attached to the frame of the bicycle, and thereafter the bicycle may be transported in an upright position. However, this operation usually is complicated, because it is necessary first to attach the profiled carrier to a load-carrier or equivalent means. Thereafter, the bicycle must be positioned in the holder and be held in position while the stay means is pivoted upwards and is locked to the frame. In addition, the construction suffers from the disadvantage of not being sufficiently tamper-proof, since a potential bicycle thief could easily remove the bicycle along with the bicycle holder attached thereto from the vehicle roof. Moreover, the bicycle holder itself could be wrongfully removed from the vehicle roof when the bicycle holder is empty. Consequently, a separate locking device need be provided to lock the bicycle holder to the vehicle. 
     OBJECT OF THE INVENTION 
     In view of the above, the object of the invention is to provide a bicycle holder that is easy to handle while providing safety of fastening both from traffic-hazard and theft points of view. 
     SUMMARY OF THE INVENTION 
     These objects are achieved in accordance with the invention in that the holding arm is kinetically connected to a stop member arranged, in response to the pivotal movements of the holding arm, to be shifted between a blocking position associated with the securing position of the holding arm and a release position associated with the release position of the holding arm, said stop member while in its blocking position securing the attachment of the first fastening device to respectively the profiled carrier and the first load-carrier rail and while in its release position allowing said attatchment to be released. Owing to this arrangement, it becomes possible to fasten the profiled carrier to the load-carrier and the bicycle to the profiled carrier in substantially one single step. In addition, this arrangement of the profiled carrier makes it impossible to remove the profiled carrier from the load-carrier as long as the holding arm remains in a securing position. This securing position could be for instance one in which the arm encircles the bicycle frame, or a parking position. 
     Suitably, the bicycle holder has a locking device comprising an actuating member connected to said first fastening device to actuate said first fastening device between a release position and a fastening position, and a locking means, which is firmly connected to said holding arm and which forms said stop member, said actuating means formed with a blocking edge with which said locking means engages when the actuating means assumes its fastening position and the holding arm assumes its securing position. Owing to this arrangement, it becomes possible to design a simple mechanical structure adapted to realise the above-defined objects. In addition, said locking means preferably is mounted on a holding shaft which is rigidly connected with the holding arm and which extends rotatably across essentially the entire width of the profiled carrier, said shaft forming the centre of rotation of the pivotal motion of the holding arm. The structure provides a possibility of simultaneous attachment in two points, one on either side of the profiled carrier, in order to provide rapid, stable and safe fastening. Preferably, the locking means is formed by a protrusion projecting from said holding shaft and said blocking edge is in the form of an undercut groove made in said actuating member, said protrusion having a shape that essentially is complementary to that of the groove. Preferably, the groove is configured as the segment of a circle and in the fastening position of said actuating member the groove is substantially centred relative to said holding shaft, a constructional feature which makes it possible to obtain the locking effect simply by rotation of the shaft. 
     In addition, said first fastening device preferably comprises a clamping device intended to engage in an undercut groove or equivalent means formed in said first load-carrier rail. Preferably, the actuating member is formed with a curved cam section and in addition via a rod element it is pivotally connected with a locking body, the latter being adapted for lockable engagement with said groove upon actuation of said actuating member towards said fastening position. The arrangement makes it possible to obtain a mechanically simple construction to effect fastening between the profiled carrier and the load-carrier. 
     A gripping device intended to grippingly engage the frame of the bicycle is provided on said holding arm, said gripping device comprising a first and a second grip jaw, said jaws arranged to be shifted between a gripping position and a release position. In addition, in their gripping position said gripping jaws preferably cross one another. In this manner, they provide a safe grip around the frame, also small-diameter frames, and the crosswise grip engagement also results in an extension of the force application in the longitudinal direction, a feature which could be advantageous for stability reasons. In addition, said first and second gripping jaws are formed with engaging toothed sections, which contributes to synchronisation of the jaw movements. To obtain such synchrony, it is sufficient to actuate one of the jaws in order to obtain a gripping or release movement, as the case may be. 
     Suitably, said first gripping jaw is also formed with a locking portion which essentially partly protrudes over a locking area when the jaws assume their gripping position but is essentially retracted from said locking area when the jaws assume their release position. Furthermore, said profiled carrier preferably is formed with a locking pin comprising an abutment face and said holding arm preferably is arranged to be shifted to a parking position, in which the engagement between the profiled carrier and the first load-carrier rail remains, and said locking pin is arranged to be introduced into said locking area, said locking portion arranged to be introduced below said abutment face. In this manner, a theft-proof construction is obtained that prevents theft of the bicycle holder during transportation of said holder alone. 
     Preferably, while assuming its gripping position, said gripping device may be locked by means of a lock, preferably a key-operated lock. Consequently, without access to the key, it is impossible to remove the bicycle holder from the load-carrier while the bicycle holder is in its secured position or in its parking position. 
     Furthermore, said second fastening device comprises a coupling arrangement of dove-tail type so as to allow it to be fastened to the second load-carrier rail in a flexible manner. The arrangement allows the bicycle holder to automatically adjust to variations of inclination of the load-carriers relative to one another and thus to the curvature of the vehicle roof, a feature which allows easy fastening of the profiled carrier to the load-carriers. 
     Finally, the profiled carrier is formed with a first depression in which one of the bicycle wheels is intended to be positioned, said first depression offering sufficient support to said wheel to allow the bicycle to be placed directly in an upright position on the profiled carrier. Therefore there is no need to manually hold the bicycle while the holding arm is pivoted upwards and fastened, which contributes to the possibility of convenient and safe positioning the bicycle on the profiled carrier during attachment as well as transportation. 
    
    
     
       BRIEF DESCRIPTION OF THE DRAWINGS 
       The invention will be described in the following in more detail with reference to the accompanying drawings, wherein 
         FIG. 1  is a perspective view of a bicycle holder, showing a bicycle in position on the bicycle holder, which is attached to load-carrier rails mounted on a vehicle roof. 
         FIG. 2  is a lateral view of the bicycle holder of  FIG. 1  in its bicycle-release position. 
         FIG. 3  is a lateral view of the bicycle holder of  FIG. 1  in the bicycle-locking position. 
         FIG. 4  is a perspective view of a locking mechanism for use together with the bicycle holder in accordance with the invention. 
         FIG. 5  is a cross-sectional view of the locking mechanism of  FIG. 4  in its locked position. 
         FIG. 6  is a further cross-sectional view of the locking mechanism of  FIG. 4 , the section being taken along line I—I in FIG.  5 . 
         FIGS. 7   a - 7   c  show a sequence of operational steps for actuation of the locking device in accordance with the invention. 
         FIGS. 8   a - 8   c  shows an additional sequence of operational steps for fastening the locking device to the bicycle frame with the aid of a gripping part. 
         FIG. 9  is a plan view of the internal components of the gripping part of  FIGS. 8   a - 8   c  (cover removed). 
         FIG. 10  is a lateral view of the bicycle holder while in a position of transportation of the bicycle holder only, without bicycle. 
         FIG. 11  is a lateral view of the bicycle holder, showing a locking pin used during transportation of the bicycle holder while not supporting a bicycle. 
         FIG. 12  is a cross-sectional view of a fastening device for the bicycle holder to attach the latter to a rear load-carrier rail, the view taken along line II—II of FIG.  11 . 
     
    
    
     DETAILED DESCRIPTION OF PREFERRED EMBODIMENTS 
       FIGS. 1-3  show a bicycle holder of the kind defined in the preamble. The bicycle holder comprises a profiled carrier  1  intended by means of first and second fastening devices  2  and  3 , respectively, to be attached to first and second load-carrier rails  4  and  5 , respectively. In turn, the load-carriers  4 ,  5  are fastened to a vehicle roof  6  by means of feet, not to be described herein in detail. The profiled carrier  1  further is formed with a first and a second depression  7  and  8 , respectively, in which the front and rear wheel, respectively, of a bicycle  9  are to be supported. The depressions  7 ,  8  are configured in such a manner that the bicycle  9 , once it is placed in the profiled carrier  1 , remains in an upright position, also if not otherwise supported. The extension of above all the first depression  7  is such that it offers the bicycle wheel definite lateral support. This design facilitates attachment of the bicycle  1  on the vehicle roof  6 . In addition, a first and a second attachment strap  10  and  11 , respectively, are arranged on the profiled carrier  1 , the first strap  10  on the first depression  7  and the second strap  11  on the second depression  8 . These attachment straps are intended to be strapped about the wheels for the purpose of securing the bicycle  9  to the profiled carrier  1 . Furthermore, the point of attachment of the second attachment strap  11  is displaceable in the lengthwise direction of the second depression  8  to allow use of the bicycle holder for transportation of differently-sized bicycles. 
     In addition, a holding arm  15  is arranged on the first fastening devices  20  via a holding shaft  16 , which is non-rotationally connected to said arm  15 , said holding shaft  16  extending through essentially the entire width of the profiled carrier  2  and being pivotal relative thereto. The holding arm  15  is arranged for pivotal movement relative to the profiled carrier  2  between a release position (see  FIG. 7   a ), a gripping position (see  FIG. 7   c ), and a storage position (see FIG.  10 ). On the holding arm  15  is also mounted a gripping device  17  intended to grip the frame of a bicycle  9  with a view to provide safe attachment of the bicycle  9  to the profiled carrier  2 . The gripping device  17  is also arranged for displacement along and pivotal movement about the holding arm  15  for the purpose of allowing adaptation of the device to bicycles having different frame sizes. The gripping device  17  comprises a first and a second gripping jaw  12  and  13 , respectively, which together form a gripping chuck. The inner faces of the gripping jaws  12  and  13 , respectively, are covered with a flexible and soft material  14  to allow adaptation to e.g. different bicycle-frame profiles and different inclinations of the frame and to essentially eliminate the risk for scratches to the enamel of the bicycle. In addition, the gripping device  17  comprises a clamping device  18 , which is connected to the gripping jaws  12  and  13 , respectively, in a force-transferring manner in order to effect closing and opening, respectively, of the jaws. 
       FIGS. 4-6  illustrate a detail of the locking device in accordance with the invention.  FIG. 4  shows the holding shaft  16  mentioned previously, which is non-rotationally connected with the holding arm  15 . With the holding shaft  16  is also connected a protrusion  19  having a cross-sectional shape essentially configured as a T-shaped segment of a circle. Preferably, the bicycle holder has one locking device on either side of the profiled carrier to obtain stable and reliable attachment (not shown).  FIG. 4  also shows an actuating arm  20 , which is connected with a blocking body  23  via a threaded rod member  21  extending through a through-channel  2  formed in the profiled carrier  1 , said blocking body  23  intended to be received in an undercut locking groove  24  formed in said first load-carrier rail  4 . The actuating arm  20  also is formed with a curved cam section  20 ′, arranged upon rotation of the actuating arm  20  towards a locking position to cause the locking plate  23  to be urged against the upper edges  24 ′ of the locking groove  24 . In addition, the actuating arm  20  is formed with a T-shaped groove  24  configured as a segment of a circle, and when the actuating arm  20  assumes its locking position, said groove is essentially centred relative to the holding shaft  16  and to the T-shaped protrusion  19 . Upon rotation of the holding arm  15  and consequently of the holding shaft  16  towards the locking position of the holding arm  15 , the protrusion consequently is introduced into said T-shaped groove  24  in the actuating arm  20 , whereby the actuating arm  20  and consequently the locking plate  23  are blocked in their respective locked positions, when the holding arm  15  assumes its locking position (see  FIG. 7   c ). A cross-section of the T-shaped groove  24  and of the T-shaped protrusion  19 , taken along line I—I of  FIG. 5 , is shown in FIG.  6 . The distance from the curved cam section  20 ′ and the locking plate  23  is also variable by screwing the actuating means  20  inwards/outwards relative to the threaded rod element  21 . 
       FIGS. 7   a - 7   c  show further details of the locking device in accordance with the invention.  FIG. 7   a  shows the holding arm  15 , the holding shaft  16  associated therewith, and the actuating arm  20  in their respective release positions. In  FIG. 7   b  the actuating arm  20  has been moved to its locking position (see movement-indicating arrow in  FIG. 7   a ), i.e. in response to cam action the locking plate  23  has been urged against locking groove  24  formed in the first load-carrier rail  4 , and in consequence thereof the position of the profiled carrier  1  relative to the load-carrier rail  4  is secured. In  FIG. 7   c , the holding arm  15  has been moved to its locking position (see movement-indicating arrow in  FIG. 7   b ). As a result of this movement, the T-shaped protrusion  19  on the holding shaft  16  is introduced into the T-shaped groove on the actuating arm  20 , whereafter said arm  20  is secured in its then position and cannot be removed unless the holding arm  15  is first to its release position. 
     As described above, a gripping device  17  is arranged on the holding arm  15 . The function of the gripping device  17  is shown in more detail on  FIGS. 8   a - 8   c . When the locking device has been moved to the position shown in  FIG. 7   a , the gripping device  17  is made to grip the frame of the bicycle  9  in the manner illustrated for example in FIG.  1 . The gripping device  17  comprises a gripping chuck formed by the previously mentioned first and second gripping jaws  12  and  13 , respectively. On their inner faces said gripping jaws are covered with a flexible material  14  serving to provide excellent adaptability to different bicycle-frame dimensions and bicycle-frame sizes, in addition to which the structure distributes the clamping force exerted by the jaws along the frame. Moreover, the gripping jaws  12 ,  13  cross one another in the gripping position, as most clearly apparent from  FIG. 8   c . Owing to this jaw arrangement, a secure grip is obtained, also in the case of small-size frames. The gripping jaws  12 ,  13  are displaceable relative to one another against the action of a clamping device  18  between a release position and a gripping position. The clamping device  18  comprises a clamping arm  25  which, upon rotation of the holding arm  15  towards a locking position in response to cam action, displaces the gripping jaws  12 ,  13  towards one another for the purpose of gripping the frame. When the holding arm  15  assumes its locking position, it may be secured in that position by means of a key-operated lock  26 , shown in  FIG. 8   c . Thus, the gripping device  17  is secured in the position in which it encircles the frame, the holding arm  15  is secured in the position shown in  FIG. 7   c , and the locking device  20 ,  21 ,  22 ,  23 ,  24 , shown in  FIG. 5 , assumes its locking position. Consequently, simultaneous fastening of the profiled carrier  1  to the bicycle frame as well as to the load-carrier rail  4  is achieved, and neither the bicycle  9  itself nor the bicycle  9  jointly with the bicycle holder could be removed from the vehicle under these conditions. 
       FIG. 9  shows the internal mechanism of the gripping device  17  of  FIGS. 8   a - 8   c . A first and a second gripping jaw  12  and  13 , respectively, are rotationally attached to a plate  27 , which in this case is part of the housing of the gripping part  17 , with their pivot axes spaced apart. The gripping jaws  12 ,  13  also are formed with engaging toothed sections  12 ′,  13 ′. In addition, the first gripping jaw  12  is connected with the clamping arm  25  via a threaded rod  28 , which is in engagement with said first gripping jaw  12 . The spacing between the pivot axis of the clamping arm  25  and the first gripping jaw  12  thus is changeable by screwing the actuating means inwards/outwards relative to the threaded rod  28 , see FIG.  9 . Such screwing movements cause the mutual gripping position of the gripping jaws  12 ,  13  to change. In addition, said clamping arm  25  is formed with a curved cam section  25 ′ designed to urge the gripping jaws  12 ,  13  towards a gripping position upon movement of the actuating means towards the locking position shown in FIG.  8   c . Furthermore, the structure comprises a spring means  32  placed about the threaded rod  28  and arranged to act on the first gripping jaw  12  and the housing  17 , said spring means biasing the gripping jaws  12 ,  13  towards their mutual release position. 
     The first gripping jaw  12  also comprises a locking portion  29  which in the locking position of the clamping device  25  covers a part of but not all of the aperture  30  formed in the housing  17  of the gripping device and in the release position of the clamping device  25  is essentially entirely removed from said aperture  30 . In addition, on the profiled carrier  1  there is provided a locking pin  31 , which is complementary to said aperture  30  and the locking portion  29 , see FIG.  11 . The position of the locking pin  31  is such as to ensure that the pin may be introduced into said aperture  30  when the holding arm  15  is folded downwards, towards the profiled carrier  1  for transportation purposes (without bicycle), see  FIGS. 10 and 11 . The locking pin  31  is also formed with an abutment face  31 ′ below which the locking portion  29  is pushed inwards upon pivotal movement of the clamping device  25  from the release position to the locking position. This allows the actuating means to be then secured in that position by means of the key-operated lock  26  shown in  FIG. 8   c , which in the same manner as described in the aforegoing prevents the bicycle holder from being removed from the vehicle. 
     In  FIG. 12 , finally, is shown the second fastening device  3  having a pair of slightly resilient flanges  33  projecting downwards from the profiled carrier  1  and intended to be received in a channel  34  of complementary configuration, comprising inwardly inclined outer faces. However, it is sufficient to make only either the outer faces or the flanges resilient. This structure provides some flexibility in the means interconnecting the channel and the profiled carrier, ensuring safe and stable attachment function, also when the vehicle roof is not flat and the load-carriers consequently are somewhat angularly displaced relative to one another. In addition, said channel  34  may be formed directly in the second load-carrier  5  or in an intermediary component, see FIG.  1 . 
     It should be appreciated that a number of embodiments of the invention are possible without departing from the inventive idea. For example, the gripping device could be designed in a variety of ways as regards the shape and the mechanical structure of the gripping jaws. In addition, the fastening devices with respect to the load-carrier rails could be varied; for instance means extending around the load-carrier rails could be used instead of grooves formed in the rails.