![]() Foldable hinged ramp on vehicles
专利摘要:
The invention relates to a foldable and foldable ramp for attachment to a vehicle rear (F), with two by a hinge joint (4) interconnected ramp parts (2, 3), of which the one ramp part (2) via a hinge joint (1) at the rear of the vehicle (F) is articulated. The two ramp parts (2, 3) are movable between a folded and deployed in an extended position use position and an approximately vertically folded up and folded on each other rest position. Provided is a Rampenhebermechanismus having an approximately parallel to the hinged to the vehicle rear end ramp part (2) arranged push rod 5, 6, which is hinged at one end to the rear of the vehicle via a hinge joint (7), with respect to the hinge joint (1) between the rear of the vehicle and the ramp part (2) hinged thereto is arranged offset backwards and downwards and is connected at its other end via a hinge joint near the hinge part (4) connecting the two ramp parts (2, 3) to the other ramp part (3). 公开号:AT14798U1 申请号:TGM50022/2015U 申请日:2015-02-23 公开日:2016-06-15 发明作者: 申请人:Johann Demmler Kg; IPC主号:
专利说明:
description FOLDABLE FOLDABLE RAMP ON VEHICLES The invention relates to a foldable hinged ramps on vehicles or trailers. Folding ramps on vehicles or vehicle trailers are known. They are usually formed in one piece and pivotally connected between a folded-up rest position and a folded down to the floor use position with the rear of the vehicle to serve as Auffahrtrampe or Aufgangsrampe. Since the ramp in the folded position is not or not to survive each excessively over the height of the vehicle or the trailer, the length of the ramp is limited, so that the ramp in the folded-use position depending on the height of the vehicle floor above the road relative is steep. The object of the invention is to provide an up and hinged ramp with relatively flat access angle. This object is achieved by the foldable ramp specified in claim 1, which folded when folding the ramp from the use position to the rest position with its two ramp parts in a substantially superimposed position and unfolded when folding into the use position with its two ramp parts and automatically brought into the stretch division. The foldable ramp according to the invention thus consists of two interconnected by a hinge joint ramp parts, and the ramp has a Rampenhebermechanismus, which serves to fold down and fold up the ramp, and the two ramp parts automatically unfolds when folding the ramp in the stretch division, and folding the ramp, the two ramp parts automatically folds again in the substantially superimposed folding position. For this purpose, the ramp lift mechanism has a handlebar linkage, which controls the unfolding and folding movement synchronously with the folding and the folding-up movement. Further details of the invention will become apparent from the following description of an embodiment, as illustrated in the accompanying drawings. In the drawings: Figure 1 is a side elevational view of a ramp according to the invention with the folded up Resting position and the folded use position are marked in one another, Fig. 2 is a side view of the ramp similar to Figure 1, wherein also still several Intermediate positions between the folded-up rest position and the folded use position are shown to represent the movement sequence, and Fig. 3 is an enlarged partial side view of the upper portion of the folded-up Ramp. Fig. 1 shows only schematically illustrated a vehicle rear F, to which the ramp R is pivotable with a hinge joint 1 between a folded-up rest position and a folded-off use position. The ramp consists of a first ramp part 2 and a second ramp part 3. The first ramp part 2 connects to the hinge joint 1, and the second ramp part 3 is connected via a further hinge joint 4 with the first ramp part 2. Approximately parallel to the first ramp part 2 extends a push rod 5, 6, which consists of a rear push rod part 5 and a front push rod part 6. The back The push rod part 5 is connected to the vehicle rear F via a hinge joint 7, and the front push rod part 6 is connected to the rear push rod part 5 via a hinge joint 8. At the bottom of the first ramp part 2, a guide block 9 is fixed, in which the rear push rod part 5 is guided longitudinally displaceable with its front end portion. In addition, the guide block 9 serves as a front spring abutment for a compression spring 10 which is arranged around the rear push rod part 5 and is supported at its rear end on a rear push rod part 5, along the rear push rod part 5 for adjusting the spring force adjustable spring abutment 11. As can be better seen from the enlarged view in Fig. 3, the front push rod part 6 is formed as a telescopic rod and has a front telescopic part 12 which dips into the rest of the front push rod part 6 and is relatively displaceable, so that the total length of the front push rod part 6 for the purpose of length compensation is changeable. An insertion of the telescopic part 12 in the rest of the front push rod part 6 is therefore only possible insofar as possible until the stop 13 abuts the front end of the remaining front push rod part 6 on the telescopic part 12. The front end of the existing of the parts 5 and 6 push rod is formed by a hinge pin 14 which is guided in an elongated slot slot 15 of a coupling plate 16 and thereby at the same time forms a slidable along the link slot 15 hinge connection with the coupling plate 16. The coupling plate 16 is otherwise connected via a hinge joint 17 with the front end of the first ramp part 2, and via a hinge pin 18 which is arranged at the rear end of the second ramp portion 13 and engages in a further cam slot 19 of the coupling plate 16, connected to the second ramp part 3. As further seen in Figure 1, the ramp has a support leg 20 which is connected via the same hinge joint 7 with the vehicle rear F, as well as the push rod 5, 6. This support base 20 supports, as Figure 1 shows, with the ramp folded down the rear , Ramp part connected to the vehicle rear F and thus also the vehicle rear area against the ground. A link 21 is connected at one end via a hinge joint 22 with the lower portion of the support leg 20 and at its other end via a hinge joint 23 with the guide block. 9 As can be seen from Figure 1, the hinge joint 7 with respect to the hinge joint 1 both downwards and rearwardly offset at the vehicle rear F is arranged. When folding the ramp from the superscript rest position, the first ramp part 2 pivots to the rear about the hinge joint 1. The second ramp part 3 depends initially due to its weight approximately vertically downwards, since it is at its articulation on the hinge joint 4 with the first ramp part 2 can pivot. With the first ramp part 2 and the push rod 5, 6 is pivoted about the hinge joint 7 backwards and downwards. Because of the both downwardly and rearwardly offset arrangement of the hinge joint 7 relative to the hinge joint 1 shortens during the downward pivoting movement, the distance between the fixedly arranged on the first ramp part 2 guide block 9 between hinge joint 7, with the result that the front end portion of the rear Push rod part 5 relative to the guide block 9 slides forward and at the same time the compression spring 10 is compressed, as can be clearly seen from the two end positions in Figure 1. The compression spring 10 compensates for a large part of the weight of the ramp, so that it does not fall down when folding and also the lifting of the ramp from the folded down position is greatly facilitated. Further, the offset of the hinge joint 7 down and back with respect to the hinge joint 1 with the result that in the Abklappbewegung the distance between the Hinge joint 7 and the hinge pin 14 is reduced during the Abklappbewegung. As a result, the telescopic part 12 pushes into the rest of the front push bar part 6 until the stop 13 strikes the front end of the remaining front push bar part 6. Then a further shortening of the push rod 5, 6 is no longer possible. This in turn means that the hinge pin 14 moves in the further downward pivoting relative to the first ramp part 2 forward, ie in the direction of the hinge joint 4 between the two ramp parts 2, 3, with the result that the coupling plate 16 to the articulation is pivoted at the front end of the first ramp part 2 by the hinge joint 17. This in turn has the consequence that on the cam slot 19 and the cooperating hinge pin 18 on the second ramp part 3, this second ramp part 3 is pivoted about the hinge joint 4, so that with increasing downward pivoting of the first ramp part 2, an increasing unfolding of the ramp parts 2 and 3 takes place , as the sequence of movements of Figure 2 illustrates where multiple intermediate positions are shown. At the end of the downward pivoting movement of the first ramp part 2, a stretching division of the ramp parts 2 and 3 is then reached, and, as can be seen from FIG. 1, the coupling plate 16 then serves as a foot for the intermediate support of the ramp on the ground. The link slots 15 and 19 in the coupling plate 16 allow sliding of the hinge pins 14 and 18 relative to the coupling plate 16, so that compensating movements in the course of the downward pivoting operation and Auffaltvorgangs are possible. When folding the ramp in its rest position, the processes take place in the reverse direction. At the same time takes place in the downward pivoting of the first ramp portion by shortening the distance between the guide block 9 and the hinge joint 7 via the handlebar 21, the downward pivoting of the support leg 20, and when folding up the ramp, reversing the return of the support leg 20 in a raised position. In Figure 2, the support leg is not shown for simplicity, so the presentation is not confusing. In the illustrated embodiment, the spring 10 is used to compensate for the ramp weight to such an extent that a folding and folding up the ramp between folded-down rest position and folded use position by hand is possible, including appropriate operating handles on the ramp parts 2, 3 may be provided can. In the folded-up rest position, the ramp is then locked by a manually operable lock. Alternatively, especially for larger and heavier ramps on larger vehicles or trailers, instead of the spring 10 can find a hydraulic cylinder with hydraulic piston application, optionally in combination with such a spring.
权利要求:
Claims (9) [1] claims 1. Foldable and foldable ramp for attachment to a vehicle rear (F), with two by a hinge joint (4) interconnected ramp parts (2, 3), of which the one ramp part (2) via a hinge joint (1) at the rear of the vehicle (F ), wherein the two ramp parts (2, 3) are movable between a folded and deployed in a stretch stretching use position and an approximately vertically folded up and folded rest position, and with a Rampenhebermechanismus, which articulated approximately parallel to the rear of the vehicle Ramp part (2) arranged push rod 5, 6, which is hinged at one end to the rear of the vehicle via a hinge joint (7) arranged offset with respect to the hinge joint (1) between the rear of the vehicle and the hinged thereto ramp part (2) to backwards and downwards is, and at its other end via a hinge joint near the hinge part (4) connecting the two ramp parts (2, 3) with the a Ramp part (3) is connected, characterized in that the push rod (5, 6) indirectly via a link member (16) with the other ramp part (3) is connected and the link member (16) in turn via a hinge joint (17) with the Ramp part (2) articulated at the rear end of the vehicle and connected to the end of the push rod (5, 6) via a hinge joint (14) and to the other ramp part (3) via a hinge joint (18), and the link member (16) Support body is formed, which serves in the folded-down ramp for inter mediate support of the stretched ramp portions (2, 3) in the region of the hinge connection. [2] 2. Ramp according to claim 1, wherein the connecting rod (5, 6) with the link member (16) connecting the hinge joint (14) and the link member 16 with the other ramp part (3) connecting hinge joint (18) in each case in a slot (15 , 19) of the link member (16) is movably arranged. [3] 3. Ramp according to claims 1 or 2, wherein the push rod (5, 6) is formed variable in length by a certain distance by the push rod (5, 6) is formed with a telescopic element (12) having a change in length between a greater length and a limited by a stop (13) minimum length allows. [4] 4. ramp according to claim 3, wherein the stop (13) along the telescopic element 12 is adjustable. [5] 5. Ramp according to one of claims 1 to 4, wherein a compression spring (10) for weight balance between a fixed to the rear of the vehicle (11) ramp part (2) spring abutment (9) and one on the push rod (5, 6) is arranged near its end connected to the vehicle rear end (F) arranged spring abutment (11). [6] 6. Ramp according to claim 5, wherein one (11) of the spring abutment (9, 11) for adjusting the spring length of the compression spring is adjustable. [7] 7. Ramp according to claim 5 or 6, wherein the compression spring (10) to the push rod (5, 6) is arranged around and the push rod consists of two by a joint (8) interconnected push rod parts (5, 6), of which the a, with the rear of the vehicle (F) connected to push rod part (5) in a arranged on the vehicle rear (F) ramp part (2) guide block (9) is guided longitudinally displaceable, which also serves as a spring abutment for the compression spring. [8] 8. Ramp according to one of claims 1 to 7, wherein a hydraulic piston-cylinder arrangement is provided, which at one end with the vehicle rear (F) in the region of the hinge joint (7) between the rear of the vehicle and the push rod (5, 6). articulated connected and at the other end with the rear of the vehicle (F) connected ramp part (2) at one of the this ramp part (2) with the vehicle rear connecting hinge joint (1) remote location is pivotally connected. [9] 9. ramp according to one of claims 1 to 8, wherein a pivotable support leg (20) is provided, which connected at one end via a hinge joint (7) with the vehicle rear (F) and at a remote location via a link (21 ) is pivotably connected to the ramp part (2) connected to the rear of the vehicle at a location remote from the hinge joint (1) connecting the latter to the vehicle rear end.
类似技术:
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同族专利:
公开号 | 公开日 DE102015013713A1|2016-06-16| DE102015013713B4|2018-04-12| DE202014009765U1|2015-03-03|
引用文献:
公开号 | 申请日 | 公开日 | 申请人 | 专利标题 DE3512940A1|1985-04-11|1986-10-16|Karl Müller GmbH & Co KG Fahrzeugwerk, 7292 Baiersbronn|Drive-on ramp for vehicles| SU1708672A1|1989-04-03|1992-01-30|Специальное Конструкторско-Технологическое Бюро Главмосинжстроя При Мосгорисполкоме|Vehicle| DE20102261U1|2001-02-09|2001-05-10|Langendorf Heinrich|Spreadable ramp for low loaders, trailers and the like. vehicles| GB895801A|1957-06-29|1962-05-09|William David James Sparrow|Improvements in or relating to goods carrying road vehicles| DE1580048A1|1966-03-11|1970-05-27|Kaessbohrer Fahrzeug Karl|Truck with two-part loading ramp| NO142030C|1978-07-04|1980-06-18|Kvaerner Brug Kjoleavdelning|SHIP LOADING AND LOADING DEVICE.| GB2116940B|1982-03-16|1986-01-15|Charles Neill|Collapsible ramp| DE3302915C2|1983-01-28|1989-07-20|Goldhofer Fahrzeugwerk Gmbh & Co, 8940 Memmingen, De| DE9420874U1|1994-04-28|1995-02-23|Hoffmann Heinz Rainer Dr Ing|Hinged ramp| US6135532A|1998-03-19|2000-10-24|Thor Tech, Inc.|Recreational vehicle and specialized tail gate and loading ramp| US6241452B1|1998-11-09|2001-06-05|Link Mfg., Ltd.|Ramp for use with service vans| FR2822112B1|2001-03-15|2003-11-07|Actm|LOADING RAMP FOLDABLE IN TWO ARTICULATED ELEMENTS| US6698998B2|2002-05-08|2004-03-02|Ricon Corp.|Foldable ramp| FI116046B|2004-07-23|2005-09-15|Hannu Leppaelae|Actuator Arrangement for Drive Bridge| US7908695B2|2008-04-11|2011-03-22|The Braun Corporation|Manually-operated ramp for handicapped access| DE202014009765U1|2014-12-11|2015-03-03|Johann Demmler Kg|Foldable hinged ramp on vehicles|DE202014009765U1|2014-12-11|2015-03-03|Johann Demmler Kg|Foldable hinged ramp on vehicles|
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申请号 | 申请日 | 专利标题 DE201420009765|DE202014009765U1|2014-12-11|2014-12-11|Foldable hinged ramp on vehicles| 相关专利
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