• 专利附录
  • 专利说明
  • 权利要求
  • 类似技术
  • 同族专利
  • 引用文献
  • 法律状态
  • 优先权
    • 专利摘要:
    The present invention relates to a system for preventing semitrailer collisions with a loading ramp 10. The system comprises a sensor 100 and guide block 200. The sensor 100 is configured for sensing when the rear end of a semitrailer´12 is approaching a loading ramp 10. The guide block 200 is adapted to be positioned on the ground, and is here shown positioned laterally to the openingof the loading ramp 10. The guide block 200 comprises wheel blocking means 210 configured for supporting the tread of a rear tire of the semitrailer 12. The wheel blocking means 210 is configured to move from a forwarded position relative to the loading ramp 10 to a retracted position relative to the loading ramp as the semitrailer 12 is reversing towards said loading ramp 10. The sensor 100 is configured to send a blocking signal to the guide block 200 when the distance between the rear end of the semitrailer 12 and the loading ramp 10 is below a preset threshold, thereby blocking the movement of the wheel blocking means 210.
    公开号:DK201770833A1
    申请号:DKP201770833
    申请日:2017-11-07
    公开日:2019-07-01
    发明作者:Valentin Jan
    申请人:Jvj Maskinteknik Aps；
    IPC主号:
    专利说明:

    System for preventing semitrailer collisions with a loading ramp
    Technical field of the invention
    The present invention relates to systems for preventing semitrailer collisions with loading ramps.
    Background of the invention
    Loading ramps are generally designed to receive a semitrailer with the rear end first. Hence, the driver of the semitrailer will have to reverse the semitrailer towards the loading ramp. Optical devices are often present at the loading ramp to alert the driver when he is in place in front of the loading ramp. However, for some reason, the driver does not pay attention to the warning signal, and collide the semitrailer with the loading ramp. Since, many types of semitrailers arrive at a loading ramp each day, it is difficult to position a physical stop in front of the rear wheels of the semitrailer. The distance between the rear wheels and the rear end of the semitrailer simply varies too much from one type of semitrailer to another.
    Summary of the invention
    It is an object of the present invention to overcome the above-mentioned problems.
    One aspect relates to a system for preventing semitrailer collisions with a loading ramp comprising:
    - a sensor configured for sensing when the rear end of a semitrailer is approaching a loading ramp; and
    - a guide block adapted to be positioned on the ground, laterally and/or medially to the opening of the loading ramp; wherein the guide block comprises wheel
    DK 2017 70833 A1 blocking means configured for supporting the tread of a rear tire of the semitrailer, and configured to move from a forwarded position relative to the loading ramp to a retracted position relative to the loading ramp as the semitrailer is reversing towards said loading ramp;
    wherein the sensor is configured to send a blocking signal to the guide block when the distance between the rear end of the semitrailer and the loading ramp is below a preset threshold, thereby blocking the movement of the wheel blocking means.
    In principle, the wheel blocking means is initially positioned at an extended position relative to the loading ramp, where the rear end of the semitrailer is at no risk of colliding with the loading ramp. The semitrailer is reversed until its rear wheel at the driver side reaches the wheel blocking means. The driver then continues to reverse the semitrailer as the wheel blocking means continuously supports the rear wheel in a retractive movement, relative to the loading ramp, until the sensor sends a blocking signal to the guide block when the distance between the rear end of the semitrailer and the loading ramp is below a preset threshold. In response to the blocking signal, the wheel blocking means locks its position, and the driver will feel that the semitrailer brakes. He then knows that the semitrailer is in position. Thereby, the semitrailer will never risk colliding with the loading ramp, and the solution is independent on the type of semitrailer.
    The sensor configured for sensing when the rear end of a semitrailer is approaching a loading ramp is preferably a distance sensor. The term “distance sensor for the purposes of this invention can be one or more of an infrared sensor, a triangulation sensor, an ultrasonic sensor, or the like, or combinations thereof.
    In one or more embodiments, the wheel blocking means is configured such that the work of the rear wheel of the semitrailer on the wheel blocking means makes the wheel blocking means move from a forwarded position relative to the loading
    DK 2017 70833 A1 ramp to a retracted position relative to the loading ramp. Hence, it is only the force of the reversing semitrailer that moves the wheel blocking means from a forwarded position to a retracted position. Such a specific configuration could e.g. be that the wheel blocking means is connected to a locking means comprising a toothed rack, and a locking pin; and wherein the locking pin is configured to engage with the toothed rack upon receipt, either directly or indirectly, of a blocking signal from a sensor. The toothed rack is preferably positioned along the length of the guide block. The locking pin will then be in a retracted position until the blocking signal is received.
    In one or more embodiments, the wheel blocking means is configured as a sled.
    In one or more embodiments, the wheel blocking means comprises a plate adapted for supporting a tire of a semitrailer.
    In one or more embodiments, the wheel blocking means is configured as a sled with a) a distal end, relative to the loading ramp, configured substantially plane, relative to the ground surface; b) a substantially plane or concave, relative to the ground surface, middle segment; and c) a proximal end, relative to the loading ramp, configured as an elevation, relative to the ground surface, adapted for supporting the tread of a rear tire of the semitrailer.
    In one or more embodiments, the wheel blocking means is configured as a sled with a) a distal end, relative to the loading ramp, configured as a ramp; b) a substantially plane, relative to the ground surface, middle segment or a concave, relative to the ground surface, segment; and c) a proximal end, relative to the loading ramp, configured as an elevation adapted for supporting the tread of a rear tire of the semitrailer.
    In one or more embodiments, the sled is connected to a locking means comprising a toothed rack, and a locking pin; and wherein the locking pin is
    DK 2017 70833 A1 configured to engage with the toothed rack upon receipt, either directly or indirectly, of a blocking signal from a sensor.
    The blocking signal may be transmitted by wires or wireless.
    In one or more embodiments, the sled is connected to a locking pin housing adapted to move the locking pin above and along the toothed rack.
    In one or more embodiments, the sensor, subsequent to a blocking signal, is configured to send a reactivation signal to the guide block when the distance between the rear end of the semitrailer and the loading ramp exceeds a preset threshold, thereby reactivating the guide block to move from a retracted position relative to the loading ramp to a forwarded position relative to the loading ramp.
    In one or more embodiments, the guide block comprises a sensor configured for sensing when the semitrailer has disengaged therefrom; and wherein the sensor is configured to activate the guide block to move from a retracted position relative to the loading ramp to a forwarded position relative to the loading ramp.
    In one or more embodiments, the guide block further comprises a wheel chock system adapted for blocking a tire of a semitrailer. The wheel chock system is activated when the semitrailer is in place relative to the loading ramp, and is deactivated when the semitrailer is ready for departure. Examples of a wheel chock system could be as disclosed in US6082952 (hereby incorporated by reference), where the wheel chock system comprises a blocking means moving between a forwarded position (activated) and a retracted position (deactivated).
    In one or more embodiments, the system further comprises a wheel chock system adapted for blocking a tire of a semitrailer. The wheel chock system is activated when the semitrailer is in place relative to the loading ramp, and is deactivated when the semitrailer is ready for departure Examples of a wheel
    DK 2017 70833 A1 chock system could be as disclosed in US5553987 (hereby incorporated by reference), comprising an engaging mechanism for initially engaging a tire of a vehicle as said tire rolls toward a dock position, a chock mechanism for chocking the tire that may be activated once the tire is engaged by the engaging mechanism, and a connector connecting said engaging mechanism and said chock mechanism to move them together toward said dock position in response to the rolling motion of the tire.
    A second aspect relates to a guide block for use in a system according to the present invention, the guide block being adapted to be positioned on the ground, laterally and/or medially to the opening of a loading ramp; wherein the guide block comprises wheel blocking means configured for supporting the tread of a rear tire of a semitrailer, and configured to move from a forwarded position relative to the loading ramp to a retracted position relative to the loading ramp as the semitrailer is reversing towards said loading ramp; wherein the guide block is configured for receiving a blocking signal from a sensor, and in response thereto, configured to block the movement of the wheel blocking means.
    A third aspect relates to the use of a system according to the present invention for preventing semitrailer collisions with a loading ramp.
    It should be noted that embodiments and features described in the context of one of the aspects of the present invention also apply to the other aspects of the invention.
    Brief description of the figures
    Figure 1 shows a perspective view of a system in accordance with various embodiments of the invention;
    DK 2017 70833 A1
    Figure 2 shows a guide block in accordance with various embodiments of the invention;
    Figure 3 shows a guide block in accordance with various embodiments of the invention; and
    Figure 4 shows a guide block in accordance with various embodiments of the invention.
    Detailed description of the invention
    Referring to Figure 1, the general scheme of the invention is shown in perspective view. Figure 1 shows a system for preventing semitrailer collisions with a loading ramp 10. The system comprises a sensor 100 and guide block 200. The sensor 100 is configured for sensing when the rear end of a semitrailer 12 is approaching a loading ramp 10. The guide block 200 is adapted to be positioned on the ground, and is here shown positioned laterally to the opening of the loading ramp 10. The guide block 200 comprises wheel blocking means 210 (Figure 2) configured for supporting the tread of a rear tire of the semitrailer
    12. The wheel blocking means 210 is configured to move from a forwarded position relative to the loading ramp 10 to a retracted position relative to the loading ramp 10 as the semitrailer 12 is reversing towards said loading ramp 10. The sensor 100 is configured to send a blocking signal to the guide block 200 when the distance between the rear end of the semitrailer 12 and the loading ramp 10 is below a preset threshold, thereby blocking the movement of the wheel blocking means 210.
    Figure 2 shows a guide block 200 in accordance with various embodiments of the invention, where the wheel blocking means 210 is connected to a locking means comprising a toothed rack 220, and a locking pin 230. The locking pin 230 is configured to engage with the toothed rack 220 upon receipt, either
    DK 2017 70833 A1 directly or indirectly, of a blocking signal from a sensor.
    Figures 3 and 4 show a guide block 200 in accordance with various embodiments of the invention, where the wheel blocking means 210 is configured as a sled. The distal end 212, relative to the loading ramp 10, of the sled is configured as a ramp. The middle segment 214 is concave, relative to the ground surface, and the proximal end 216, relative to the loading ramp 10 is configured as an elevation adapted for supporting the tread of a rear tire of the semitrailer.
    The sled is connected to a locking means comprising a toothed rack 220, and a locking pin 230 (Figure 4). The locking pin 230 is configured to engage with the toothed rack upon receipt, either directly or indirectly, of a blocking signal from a sensor.
    DK 2017 70833 A1
    References
    Loading ramp
    Semitrailer
    100 Sensor
    200 Guide block
    210 Wheel blocking means
    212 Distal end
    214 Middle segment
    216 Proximal end
    220 Toothed rack
    230 Locking pin
    240 Sensor
    权利要求:
    Claims (10)
    [1] Claims
    1. A system for preventing semitrailer collisions with a loading ramp (10) comprising:
    - a sensor (100) configured for sensing when the rear end of a semitrailer (12) is approaching a loading ramp (10); and
    - a guide block (200) adapted to be positioned on the ground, laterally and/or medially to the opening of the loading ramp (10); wherein the guide block (200) comprises wheel blocking means (210) configured for supporting the tread of a rear tire of the semitrailer (12), and configured to move from a forwarded position relative to the loading ramp (10) to a retracted position relative to the loading ramp (10) as the semitrailer (12) is reversing towards said loading ramp (10); wherein the sensor (100) is configured to send a blocking signal to the guide block (200) when the distance between the rear end of the semitrailer (12) and the loading ramp (10) is below a preset threshold, thereby blocking the movement of the wheel blocking means (210).
    [2] 2. A system according to claim 1, wherein the wheel blocking means (210) is configured such that the work of the rear wheel of the semitrailer (12) on the wheel blocking means makes the wheel blocking means (210) move from a forwarded position relative to the loading ramp (10) to a retracted position relative to the loading ramp (10).
    [3] 3. A system according to any one of the claims 1-2, wherein the sensor (100), subsequent to a blocking signal, is configured to send a reactivation signal to the guide block (200) when the distance between the rear end of the semitrailer (12) and the loading ramp (10) exceeds a preset threshold, thereby reactivating the guide block (200) to move from a retracted position relative to the loading ramp (10) to a forwarded position relative to the loading ramp (10).
    [4] 4. A system according to any one of the claims 1-3, wherein the wheel blocking
    DK 2017 70833 A1 means (210) is connected to a locking means comprising a toothed rack (220), and a locking pin (230); and wherein the locking pin (230) is configured to engage with the toothed rack (220) upon receipt, either directly or indirectly, of a blocking signal from a sensor.
    [5] 5. A system according to any one of the claims 1-3, wherein the wheel blocking means (210) is configured as a sled with a) a distal end (212), relative to the loading ramp (10), configured as a ramp; b) a substantially plane, relative to the ground surface, middle segment or a concave, relative to the ground surface, middle segment (214); and c) a proximal end (216), relative to the loading ramp (10), configured as an elevation adapted for supporting the tread of a rear tire of the semitrailer.
    [6] 6. A system according to claim 5, wherein the sled is connected to a locking means comprising a toothed rack (220), and a locking pin (230); and wherein the locking pin (230) is configured to engage with the toothed rack upon receipt, either directly or indirectly, of a blocking signal from a sensor.
    [7] 7. A system according to claim 6, wherein the sled is connected to a locking pin housing adapted to move the locking pin above and along the toothed rack.
    [8] 8. A system according to any one of the claims 1-7, wherein the guide block (200) comprises a sensor (240) configured for sensing when the semitrailer (12) has disengaged therefrom; and wherein the sensor (240) is configured to activate the wheel blocking means (210) to move from a retracted position relative to the loading ramp (10) to a forwarded position relative to the loading ramp (10).
    [9] 9. A guide block (200) for use in a system according to any one of the claims 1-8, the guide block (200) being adapted to be positioned on the ground, laterally and/or medially to the opening of a loading ramp (10); wherein the guide block
    DK 2017 70833 A1 (200) comprises wheel blocking means (210) configured for supporting the tread of a rear tire of a semitrailer (12), and configured to move from a forwarded position relative to the loading ramp to a retracted position relative to the loading ramp (10) as the semitrailer (12) is reversing towards said loading ramp (10);
    5 wherein the guide block (200) is configured for receiving a blocking signal from a sensor, and in response thereto, configured to block the movement of the wheel blocking means (210).
    [10] 10. Use of a system according to any one of the claims 1-8 for preventing
    10 semitrailer collisions with a loading ramp.
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    同族专利:
    公开号 | 公开日
    EP3707088A1|2020-09-16|
    WO2019091644A1|2019-05-16|
    US20200354176A1|2020-11-12|
    DK179819B1|2019-07-10|
    CA3081387A1|2019-05-16|
    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    CA2184815C|1994-03-07|2001-02-13|Elwood Ellis|Vehicle activated wheel chock positioning device|
    DE19706326C1|1997-02-18|1998-10-01|Grunewald Hans Joachim|Automatic lock type anti-theft device e.g. for lorry|
    NL1013747C2|1999-12-03|2001-06-25|Stertil Bv|Vehicle blocking device.|
    US8869948B2|2009-12-01|2014-10-28|4Front Engineered Solutions, Inc.|Wheel chocks and associated methods and systems|
    ES2363618B1|2010-01-29|2012-06-19|Amiserru, S.L|VARIABLE WIDTH CENTER SYSTEM WITH REVERSE BLOCK AND TRUCK ADVANCE FOR LOAD SPRINGS.|
    DE102010018240A1|2010-04-23|2011-10-27|Nani Verladetechnik Gmbh & Co. Kg|Device and method for blocking a truck|DK180643B1|2019-10-17|2021-11-10|Jvj Maskinteknik Aps|System for preventing semitrailer collisions with a loading ramp|
    DK180646B1|2019-10-17|2021-11-11|Jvj Maskinteknik Aps|System for preventing semitrailer collisions with a loading ramp|
    法律状态:
    2019-07-01| PAT| Application published|Effective date: 20190508 |
    2019-07-10| PME| Patent granted|Effective date: 20190710 |
    优先权:
    申请号 | 申请日 | 专利标题
    DKPA201770833A|DK179819B1|2017-11-07|2017-11-07|System for preventing semitrailer collisions with a loading ramp|DKPA201770833A| DK179819B1|2017-11-07|2017-11-07|System for preventing semitrailer collisions with a loading ramp|
    EP18773982.6A| EP3707088A1|2017-11-07|2018-09-19|System for preventing semitrailer collisions with a loading ramp|
    CA3081387A| CA3081387A1|2017-11-07|2018-09-19|System for preventing semitrailer collisions with a loading ramp|
    PCT/EP2018/075294| WO2019091644A1|2017-11-07|2018-09-19|System for preventing semitrailer collisions with a loading ramp|
    US16/762,182| US20200354176A1|2017-11-07|2018-09-19|System for preventing semitrailer collisions with a loading ramp|
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