• 专利附录
  • 专利说明
  • 权利要求
  • 类似技术
  • 同族专利
  • 引用文献
  • 法律状态
  • 优先权
    • 专利摘要:

    公开号:SE0950902A1
    申请号:SE0950902
    申请日:2009-11-26
    公开日:2011-05-27
    发明作者:Mattias Pernaa；Simo Ryhaenen
    申请人:Scania Cv Ab；
    IPC主号:
    专利说明:

    Pulling the screen and to release the screen to enable movement of the screen to a new height position during tensile loading of the pulling means.
    Due to the spring acting in the upward direction, the user only needs to overcome the spring force in one direction when adjusting the screen. Because the tensile stress is used both to operate the locking mechanism and to move the screen, the user does not necessarily have to use different operating means for these functions.
    In an embodiment of the invention, the locking mechanism is adjustable by a smaller tensile stress in the tensioning means than a tensile stress in the tensioning means exerted by the spring. The user can then apply a smaller tensile stress to the tensioning means to release the shield against the action of the locking mechanism and apply a greater tensile stress to move the shield towards or along the direction of the force exerted by the spring.
    In order to lock the locking mechanism in the current height position, it may be sufficient for the user to relieve the traction member so quickly that the locking mechanism - for example by less inertia force - has time to lock the locking mechanism before the spring has raised the screen to a significant extent.
    Although the traction member may be a rigid traction member, in one embodiment the traction member is a flexible traction member, such as a steel rope. Such a traction member can have low weight and take up little space. It may then also be possible to always keep the line stretched with a winding device.
    The spring may comprise at least one gas spring. Such proven springs have been developed for a long time and with relatively small dimensions can provide the large forces that may be necessary to overcome gravity from the screen.
    The gas spring can then also be a lockable gas spring. Such a gas spring can have an integrated locking device of a type known per se with an actuator operable from the outside which can be included in the locking mechanism according to the invention. Because such a locking device is built into the cylinder of the gas spring, it is protected against the exposed outdoor environment on top of the vehicle cab. In this case, the traction means can also be connected to the screen via a force reduction arrangement with breaking rollers. It may then be possible to use a spring with such a large spring force that the locking mechanism needs to have a locking effect in only one upward direction. The locking mechanism can then comprise only a single-acting lock, such as a lock with a "drawer effect" or a lens lock, such as a shot lock.
    The locking mechanism may further comprise a lever arranged to actuate an actuator of the locking mechanism, which lever has a first end pivotally connected to the screen and a second end connected to the traction member. Thereby, both of the above-mentioned functions of the device are easily achieved to operate the locking mechanism and to move the screen.
    Although the towing means may comprise a single element, in one embodiment the towing means may also comprise a first towing element for operating the locking mechanism and a second towing element for moving the screen. It may then be possible to use a transverse handle, one end of which is connected to the first traction element and the other end of which is connected to the second traction element, in order to operate the locking mechanism and to move the screen by raising and lowering one or the other. the other end.
    Other features and advantages of the invention may be apparent from the claims and the following description of embodiments.
    BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a schematic side view, partly in section and with broken away parts, of an air deflector on a vehicle roof with a device according to the invention; FIG. 2A, 2B are perspective views with broken away parts of another embodiment of a device according to the invention in a locked resp. released mode; and FIG. 3 is a side view with broken away parts of another embodiment of a device according to the invention; and FIG. 4 is a side view with broken away parts of a further embodiment of a device according to the invention.
    DETAILED DESCRIPTION OF EMBODIMENT The air deflector 40 in FIG. 1 is mounted in a manner not shown in more detail on a roof 62 of a towing vehicle 60. In this exemplary embodiment, the air deflector 40 comprises a screen 42 which is pivotally connected to a body 50 via a front shaft 46. The screen 42 and the body 50 may be provided with opposite side walls 44 resp. 54 that overlap.
    Between the screen 42 and the frame 50 there is at least one spring 10 which tends to pivot the screen 42 in an upward direction from the roof 62. Furthermore, there is a device for locking the screen 42 in a desired height position, so that a rear edge of the screen 42 is level with an upper leading edge 72 of a trailer 70.
    Although other springs are conceivable, in the embodiments shown, the spring is a pushing linear gas spring 10 having a pressurized cylinder 12 and a piston rod 14. In FIG. 1, the gas spring 10 is shown only as an example slightly inclined backwards, but can of course also be more vertical as shown in FIG. 2A and B. Furthermore, the gas spring 10 is of a known, lockable type which comprises an externally actuatable actuator 22 included in a locking mechanism 20, which upon actuation in a manner not shown in more detail releases a locking engagement between the cylinder 12 and the piston rod 14. The actuator 22 shown has the shape of an axially directed push button at the free end of the piston rod 14 and is further biased by spring force towards an outwardly directed locking position.
    The lower end of the spring 10 is hingedly connected to the body 50 at a body bracket 56 and its upper end is articulated to the shield 42 at a screen bracket 48 via a holder 24. More specifically, the lower end of the holder 24 is secured to the piston rod 14 by a screw connection with a nut 16 and its upper end is pivotally mounted to the shield bracket 48. At the shield bracket 48 a lever 26 included in the locking mechanism 20 is also pivotally mounted arranged to engage the actuator 22. In the examples shown in FIG. 1-3, the free end of the lever 26 is connected to a traction member 30 in the form of a traction line 32. When traction in the traction line 32 is provided, the lever 26 can then push in the actuator 22 and release the locking engagement between the cylinder 12 and the piston rod 14, so that the shield 42 can assume a new height position.
    If the screen 42 needs to be lowered, this can be achieved by the user applying a greater pulling force in the pulling line 32, so that the spring 10 is compressed to the desired extent. To lock the screen 42 in the new lower position, the user can quickly release the traction force, so that the locking mechanism 20 returns to the locking position before the spring 10 has time to overcome the greater inertia force from the heavier screen 42.
    If the screen 42 needs to be raised, this can be achieved by the user, when the actuator 22 has already been depressed, applying a slightly smaller traction force in the traction line 32, so that the spring 10 expands to the desired extent. To lock the screen 42 in the new higher position, the user can, as in the previous case, quickly release the traction force, so that the locking mechanism 20 returns to the locking position before the spring 10 has time to overcome the greater inertia force from the heavier screen 42.
    If the rapid release would not be sufficient to lock the screen 42 in the desired position, the gas spring 10 may be provided with a delaying damping function, similar to that found in gas springs of office chairs. Another possibility may be to use a rigid traction member (not shown), which in an upward movement can quickly and definitely return the locking mechanism 20 to the locking position.
    If the spring or springs 10 have a large compressive force, as schematically indicated in FIG. 1, in order to reduce the necessary traction force when adjusting the screen 42, a flexible traction member 30 be provided with a force reduction arrangement 38 comprising one or more breaker rollers or blocks 39. One end of the arrangement 38 may, as indicated, be fixedly connected to the traction vehicle 60. .
    The flexible towline 30 may also be provided with a winding device (not shown) which picks up the slack in the rope when not in use. Such a device may comprise a receptacle box with a shaft actuated by a coil spring which tends to roll up the line on the shaft to always keep it stretched.
    If the screen is actuated by two compression springs 10, there may be a locking mechanism 20 for each spring 10, as indicated in FIG. 2 A, B. The locking mechanisms 20 can then be actuated jointly by the traction member 30 via a separate lever 26B which is connected to the respective lever 26 through a transverse common shaft 28.
    There may also be other possibilities for jointly influencing the two locking mechanisms 20. One possibility is to have a common tow line divided Y-shaped to extend to the two locking mechanisms 20 (not shown).
    An alternative possibility of operating the height adjustment of a compression spring is illustrated in FIG. In this case, the pulling means 30 is divided into two pulling elements 32, 34, one of which, 32, is used to operate the locking mechanism 20, and the other, 34 is used to raise and lower the screen. As indicated, the elements 32, 34 may be contiguous in parts and extend through an elongate handle 36 which can be operated with a two-hand grip, the locking mechanism 20 being able to be controlled separately during the height adjustment by raising and lowering the handle end adjacent the part forming the traction element 32. .
    Fig. 4 finally schematically shows the possibility of designing the locking mechanism 20 by leaving the lever 26 articulated to an upper end of the cylinder 12 of the compression spring 10 and locking the piston rod 14 only in an upward direction by wedging in a continuous recess 27 with "drawer effect". A spring 29 can bias the lever 26 in the blocking upward direction. The compressive force of the compression spring 10 can then be so great that it is sufficient to hold the screen in the downward direction. One, 32, of the traction elements is used as in the previous example for operating the locking function, while the other (not shown) is used for raising and lowering the screen.
    The above detailed description is primarily intended to facilitate understanding and any unnecessary limitations of the invention are not to be construed as such. The modifications which become apparent to one skilled in the art upon review of the specification may be made without departing from the spirit of the invention or the scope of the appended claims.
    权利要求:
    Claims (9)
    [1]
    A height adjustment device of an air deflector (40) comprising a screen (42) pivotally mounted about a front horizontal axis (46) at a vehicle roof (62); characterized by a spring (10) striving to pivot the screen (42) about the axis (46) in an upward direction from the roof (62); an elongate traction member (30) connected to the screen (42) for manually adjusting the height of the screen against the action of the spring (10); and a locking mechanism (20) between the pulling means (30) and the screen (42) and operable by a pulling tension in the pulling means (30) to lock the screen (42) in a current height position when relieving the pulling means (30) and to release the screen to enable the screen to be moved to a new height position when the traction member (30) is under load.
    [2]
    Device according to claim 1, wherein the locking mechanism is (20) adjustable by a smaller tensile stress in the tensioning means than a tensile stress in the tensioning means (30) exerted by the spring (10).
    [3]
    Device according to claim 1, wherein the pulling means is a flexible pulling means (30).
    [4]
    Device according to claim 3, wherein the pulling means (30) is connected to the screen via a power transmission arrangement (38) comprising breaking rollers (39).
    [5]
    Device according to any one of the preceding claims, wherein the spring comprises at least one gas spring (10).
    [6]
    Device according to any one of the preceding claims, wherein the locking mechanism (20) comprises a lockable gas spring (10).
    [7]
    Device according to any one of the preceding claims, wherein the locking mechanism (20) comprises a lever (26) arranged to actuate an operating member (22) of the locking mechanism, which lever (26) has a first end pivotally connected to the screen (42) and a second end connected to the pulling means (30).
    [8]
    Device according to any one of the preceding claims, wherein the pulling means (30) comprises a first pulling element (32) for locking and releasing the screen and a second pulling element (34) for moving the screen (42).
    [9]
    Air deflector (40) provided with a device according to any one of the preceding claims.
    类似技术:
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    同族专利:
    公开号 | 公开日
    BR112012012443A2|2018-04-17|
    RU2503572C1|2014-01-10|
    KR20120067372A|2012-06-25|
    KR101390483B1|2014-04-30|
    EP2504222A1|2012-10-03|
    EP2504222A4|2013-06-26|
    EP2504222B1|2016-04-20|
    WO2011065894A1|2011-06-03|
    SE534328C2|2011-07-12|
    IN2012DN02380A|2015-08-21|
    CN102574554A|2012-07-11|
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    CN107640232B|2017-07-27|2019-10-22|北汽福田汽车股份有限公司|Baffle assembly and vehicle with it|
    DE102019008488A1|2019-12-06|2021-06-10|Man Truck & Bus Se|Motor vehicle with window cleaning system|
    DE102019008489A1|2019-12-06|2021-06-10|Man Truck & Bus Se|Motor vehicle with roof spoiler|
    法律状态:
    2017-07-04| NUG| Patent has lapsed|
    优先权:
    申请号 | 申请日 | 专利标题
    SE0950902A|SE534328C2|2009-11-26|2009-11-26|Device for height adjustment of an air inverter and air inverter provided with such device.|SE0950902A| SE534328C2|2009-11-26|2009-11-26|Device for height adjustment of an air inverter and air inverter provided with such device.|
    RU2012126552/11A| RU2503572C1|2009-11-26|2010-11-16|Air deflector height mount and air deflector with such mount|
    PCT/SE2010/051258| WO2011065894A1|2009-11-26|2010-11-16|Device for height setting of an air deflector, and air deflector provided with such device|
    KR1020127012692A| KR101390483B1|2009-11-26|2010-11-16|Device for height setting of an air deflector, and air deflector provided with such device|
    CN201080047125XA| CN102574554A|2009-11-26|2010-11-16|Device for height setting of an air deflector, and air deflector provided with such device|
    EP10833660.3A| EP2504222B1|2009-11-26|2010-11-16|Device for height setting of an air deflector, and air deflector provided with such device|
    IN2380DEN2012| IN2012DN02380A|2009-11-26|2010-11-16|
    BR112012012443A| BR112012012443A2|2009-11-26|2010-11-16|"device for adjusting the height of an air reflector, and air deflector provided with such device"|
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