• 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 invention relates to an extendable ladder set (1 0), in particular fire service ladder, of at least two ladder parts (1, 2, 3, 4, 5), which are each formed from Holmen (11) and between the spars (11) extending rungs (12) in that the uppermost ladder part (1) is formed from at least two ladder sections (1 a, 1 b) interconnected by an articulated connection (6) whose articulation axis (7) is substantially parallel to the rungs (12) in the position of the topmost conductor part (1) which has been completely retracted into the underlying conductor part (2), the first conductor section (1a) and the second conductor section (1b) overlap with the underlying conductor part (2). In order to increase the flexibility and the area of use of the ladder set, at least the ladder part (2) immediately below the uppermost ladder part (1) has a clearance (8) open in the head region of the ladder part (2) between the pillars (11), the ladder part tip and between the front and back of the conductor part (2) is formed continuously, so that the second conductor portion (1 b) in a position in which the hinge axis (7) with the immediately below the uppermost conductor part (1) lying conductor part (2) overlaps, by the free space (8) through the hinge axis (7) is tilted.
    公开号:AT513614A4
    申请号:T50617/2012
    申请日:2012-12-21
    公开日:2014-06-15
    发明作者:
    申请人:Rosenbauer Int Ag；
    IPC主号:
    专利说明:

    1
    The invention relates to an extendable ladder set, in particular fire ladder, from at least two ladder parts, which are each formed of spars and between the spars extending rungs, wherein the uppermost ladder part is formed from at least two conductor sections which are interconnected by an articulated connection, the hinge axis is substantially parallel to the rungs, wherein cover in the fully retracted into the underlying ladder part position of the uppermost conductor part of the first conductor portion and the second conductor portion with the underlying conductor part. The invention also relates to a vehicle, in particular a rescue vehicle, with a ladder set designed as an aerial ladder.
    In this section, the known solutions of turntable ladders are described.
    The DE9416367U1 discloses an aerial ladder for rescue vehicles with a multi-part ladder set of a number of telescopically extendable ladder parts, each with a sprouts lower chord and serving as a railing upper chord. The uppermost ladder part is divided into two and comprises an inner part which has approximately the same length as the immediately underlying ladder part, and an outer part which is articulated by an articulated connection with a horizontal hinge axis to the inner part. The inner part is extended with the additional outer part. The hinge axis lies outside of the ladder section immediately below the uppermost ladder section, i. the joint axis does not overlap with the immediately underlying conductor part. The outer part protrudes in the basic position above the cab forward and forms an extension of the ladder set, which can be swung over the hinge axis. At the 2/35 N2012 / 27100 2
    Hinge axis facing away from the outer part, i. at the ladder top, a work basket is attached. By pivoting the work basket can be placed on the ground, allowing the direct entry and exit of rescue teams.
    Due to the articulated connection, such ladders are also called articulated conductors and the outer part is also referred to as an articulated arm. For example, conductors with 5-part ladder set and short articulated arm on the top ladder part are known on the market, wherein the hinge point is arranged outside the ladder set. Due to the protruding from the telescopic portion of the ladder joint part results in an unfavorable overall length. For a given vehicle length, the length of the joint part has a great negative influence on the ladder set geometry (ladder set package length). In order to achieve a required overall length with fully extended ladder set, either the vehicle must be extended to accommodate a sufficiently long ladder set, or the number of ladder parts can be increased. Both measures are undesirable, the former due to increased space requirements of the vehicle, the second due to the increase in weight. To achieve the stability requirements, the ladder set becomes harder to achieve a larger projection or a loss of take-off must be accepted.
    DE102005024585A1 discloses an aerial ladder for rescue vehicles with a number of telescopically extendable ladder parts, at the top of which an articulated arm pivotable about a horizontal articulation axis is mounted. The hinge axis is located on fully retracted aerial ladder outside the underlying ladder parts. The articulated arm itself consists of two parts, with one part being telescopically extendable from the other part. Although this reduces the space requirement for the articulated arm projecting from the ladder set, it does, however, result in great weight on the ladder point, which has an unfavorable effect on the stability and maximum projection of the turntable ladder.
    EP2182164A1 discloses a ladder set of a plurality of extendable ladder parts. The uppermost ladder section consists of a first ladder section and a second ladder section (articulated section), which are connected to one another by an articulated connection to one another. The length of the uppermost conductor part is substantially the same size as the lengths of the underlying conductor parts. In the retracted state of the ladder set is the articulated connection in the interior of the ladder set, i. they are covered with the underlying ladder parts. This means that the uppermost conductor part must first be extended so far that the joint or the hinge axis is outside the underlying conductor part. Only then can the second conductor section (joint part) be averse. For a long hinge part, this requires a large minimum projection or ladder length. The hinge part is guided over sliding shoes on the underlying ladder section until the top ladder section reaches the head rollers after the pivot point. Only then is the uppermost ladder section guided on the head rollers. The articulated arm rests on the head roller and is guided by it. Only when the bottom cylinder moves over the roller, this slides on a sliding block to bridge the distance to the piston rod. In order to avoid collisions when retracting the ladder parts, it must be ensured that the articulated part is stretched before the uppermost ladder section can be completely retracted.
    A similar known ladder set consists of four ladder sections from which the uppermost ladder section can be moved with a separate winch (single pullout) while the other three ladder sections are moved synchronously by a second winch. The pivot point can be retracted as in EP2182164A1 in the ladder set.
    In the prior art, both solutions are known in which the hinge point is arranged in the lower flange, as well as solutions in which the hinge point is arranged in the upper flange. The joint cylinders, which serve as an actuating device for pivoting off or pivoting the joint part, are each arranged in the other belt.
    The disadvantage of the known solutions, in which the hinge point is retracted on the underlying ladder part, is that the ladder set must first be extended very far in order to tend the hinge part at all. When retracting, there is a risk of collisions if the joint part is not yet stretched. 4/35 N2012 / 27100 4
    Another drawback with retractable hinge part is that the topmost conductor part, which is usually guided on head rollers of the underlying ladder part, moves over the head roller during extension and retraction with the hinge point, resulting in a height offset or an undesirable movement discontinuity. Driving over the head roller causes unwanted shaking of the rescue crew or rescued persons supported by the platform. The discontinuity is therefore clearly felt on the platform and is perceived as unpleasant. In addition, this can lead to premature wear of the parts involved. Another disadvantage of the prior art is that overcoming from the first conductor section to the second conductor section (joint part), if the latter is averse, presents dangers because reliable gripping is made more difficult.
    The object of the invention is to provide a ladder set, in which these disadvantages do not occur and which are characterized by a long range, especially on Baikon and in the underfloor area (quay wall and bridges) and with the laying of the work platform on the floor in particular before Cab is possible. The ladder set should allow a short overall vehicle length and be characterized by straightforward kinematic processes and relationships. A large spread between minimum and maximum reach should be possible. The ladder set should also be characterized by a small footprint in the ladder movement, small footprint when placing the work platform on the ground, short set-up time and simple control technology.
    This goal is achieved with a ladder set of the type mentioned in that at least the immediately below the top ladder part ladder part has a free space which is formed in the head region of the ladder part between the spars, the head part tip open and between the front and back of the ladder part in that, in a position in which the articulation axis overlaps with the conductor part located immediately below the uppermost conductor part, the second conductor section can be inclined around the articulation axis through the free space. 5/35 N2012 / 27100 5
    The invention allows a bending of the second conductor section, also called hinge part, even in a position in which the hinge axis of the articulated connection is not completely moved beyond the underlying ladder part. This increases the flexibility and the range of use of a ladder set. An important advantage of the invention is that the length of the uppermost ladder part and thus the total length of the ladder set does not have to be extended in order to allow a decline even in (partially and / or fully) retracted state.
    The free space in the head area of the underlying ladder parts (s) is free of continuous rungs and at least so wide that the second conductor section (also called articulated arm) fits with its width through the free space. The clearance is formed between the spars or sides of the ladder section and extends between the uppermost continuous rung and the ladder section top, with the clearance open towards the ladder section tip, so that the second conductor section can be angled through the clearance (about the hinge axis). The free space forming head portion of a ladder part is thus forked1.
    In the fully retracted position of the ladder set overlaps at least a portion of the second conductor portion with the underlying space. Depending on the length of the free space (extension in the direction along the spars) and position of the joint axis during the Ableigevorgang passes or overlaps a part of the second ladder section with the bars of / the underlying ladder parts (s).
    The joint part can thus be moved even when at least partially or completely retracted ladder set. In a preferred variant of the free space (including that in the underlying ladder parts) is dimensioned such that even when fully retracted position of all ladder parts, a dislike of the joint part is possible. There is no need for any additional hydraulics or control technology limitations to ensure that the articulated part is stretched before it can be fully retracted. According to this variant, the uppermost conductor part could then be retracted completely even in the case of a bent second conductor section 6/35 N2012 / 27100 6 and only then be stretched again, i. be brought into alignment with the first ladder section.
    Even in emergency operation, the ladder set or the second conductor section can not be damaged when retracted without having previously stretched the second conductor section completely.
    It is also conceivable to build a ladder, the joint can be averse, while the ladder set is in the ladder pad.
    Hereinafter, the principle of an embodiment will be briefly explained. The hinge axis of the articulated connection is in the retracted state within the ladder set. By creating a free space, inter alia, by omitting the rungs in the ladder parts from the second ladder part (which is the directly below the top ladder part ladder part), it is possible the second conductor section (hinge part) z.T. regardless of the ladder stroke.
    The ladder rungs can be omitted in each case in the region of a ladder part, which overlaps with the respective overlying ladder part when the ladder set is fully extended, i. within the minimum coverage of ladder parts. This ensures the continuous ascendability of the ladder set.
    In variants of the invention can be sought that the entire range of motion of the joint part is usable with completely retracted ladder set. Alternatively, concepts are conceivable in the joint part can not use the entire range of motion with completely retracted ladder and thus sprouts in the larger, lower ladder parts can be maintained. In a further variant, it may be provided that the uppermost ladder section may have to be extended a little with the ladder section located immediately below, before the articulated section can be dislodged. The hinge point is still within at least one ladder section. These concepts are helpful if the removal of too many rungs would lead to a mechanical overload of the ladder parts. 7/35 N2012 / 27100 7
    The invention is suitable for sequential, synchronous or combined separation systems and has the same advantages as described above.
    It is thus a ladder set with hinge part (second conductor section) in the top ladder part, the hinge axis can be retracted within the other ladder parts. Provided is a free space in the coverage area of the ladder parts in at least the width of the joint part, so that at conductor strokes, in which the hinge axis is located within at least one of the other ladder parts, the hinge part can be disliked by at least one ladder part. The clearance is created in the coverage area of the ladder parts in at least the width of the joint part, so that the ladder set can be partially or even completely retracted at any joint angles.
    Preferably, the extent of the free space in the direction along the spars is greater than the distance between two adjacent rungs of a ladder part. The distance refers here to the regular rung spacing, which is formed in the majority of the rungs of the ladder set. The longer the free space, the less strong the top ladder part must be extended from the underlying ladder part in order to be able to decline the second ladder section.
    Preferably, the extent of the free space in the direction along the spars is at least twice as large, preferably at least three times as large as the distance between two adjacent sprouts of a ladder part. As a result, the required extension distance of the uppermost conductor part, before a dislike of the joint part is possible, further shortened.
    Preferably, the extent of the free space in the direction along the spars is at least a quarter, preferably at least half the length of the second conductor section, whereby the required extension distance is further shortened with respect to the length of the second conductor section.
    Preferably, the extent of the free space in the direction along the spars substantially corresponds to the length of the second conductor section, whereby an 8/35 N2012 / 27100 8
    Averting of the second conductor section is possible even with fully retracted top conductor part.
    Preferably, at least two of the conductor parts located below the uppermost conductor part each have a free space, so that the second conductor section can be tilted through the free spaces around the hinge axis in a position in which the articulation axis overlaps with the at least two conductor parts. In this development, the joint part can also be disliked by two ladder parts.
    Preferably, the extent of the free space in the direction along the spars in one of the ladder parts is greater than in the other ladder part. This allows a dislike of the second conductor section with retracted underlying ladder parts by a certain angle, which in many cases, however, is already sufficient to park a platform attached to the end of the joint part at the bottom. By this measure, the stability of the ladder set is optimally ensured with a corresponding reduction of the free space in the direction of lower conductor parts.
    Preferably, all lying below the top conductor part ladder parts each have a free space, so that the second conductor section in a position in which the underlying ladder parts are completely retracted and overlaps the hinge axis with the underlying ladder parts, through the free spaces around the hinge axis is tilted. Here, the second conductor section of the uppermost conductor part can be disliked by all the underlying conductor parts.
    Preferably, the spars of the first conductor section extend beyond the hinge axis and overlap at least partially with the second conductor section.
    This simplifies the transition between the first conductor section and the second conductor section, even in the inclined position, since the sections of the spars (side cheeks) extending beyond the hinge axis can be used for gripping. The sections of the spars that extend beyond the joint axis preferably include at least one bottom flange or its continuation from the first conductor section. 9/35 N2012 / 27100 9
    This variant additionally allows a guide of the first conductor section without height offset and thus without vibration excitation when driving over a shoulder or a sliding element, preferably over the full stroke of the first conductor section. This embodiment also allows continuous guidance from the side, from above and from below through the next larger ladder part.
    An advantage results from the fact that the entire top conductor part can continue to be performed with a pair of head rollers on the underlying ladder part. Also, a lift-off and side guides for the top ladder part can be positioned or stored in the head region of lying below the top ladder part ladder, whereby the introduced forces and thus the mechanical stability with minimal coverage (extended position) of the ladder parts compared to a solution without joint equal stay.
    The second conductor section is narrower here than the first conductor section in order to be retracted in the extended state.
    Of course, instead of or in addition to rollers, slide blocks are also conceivable as guide elements.
    The sections of the spars (or side walls) that extend beyond the joint axis are preferably at least twice as long as the distance between two adjacent sprouts of a ladder section. That in this embodiment, the spar passes through. This allows a secure grip during the transition.
    The length of the sections of the spars (or side walls) extending beyond the joint axis is preferably at least a quarter, preferably at least half the length of the second conductor section. Here, the extended spars can already take on considerable support functions on the underlying ladder part.
    In a further variant, the sections of the spars of the first conductor section which extend beyond the joint axis can have substantially the same length as the second conductor section (joint part). In the retracted state, the spars (or side walls) of the uppermost ladder section extend to the end of the underlying ladder section.
    The side cheeks of the first conductor section can be extended to the length of the second conductor section (or articulated arm), so that the head rollers of the underlying conductor part over the entire stroke of the uppermost conductor part can lead this without height offset. If a synchronous extension is provided, there are no restrictions on the ladder lift of all ladder parts.
    Preferably, the uppermost ladder part is guided on or on guide elements which are mounted in the underlying ladder part, wherein in the fully retracted into the underlying ladder part position of the uppermost ladder part beyond the hinge axis extended portions of the spars of the first conductor section on or on the guide elements lie. This otherwise traversed and / or leaving the second conductor section causing a height misalignment guide or sliding support according to the invention in the retracted state, the first conductor section, so that there is preferably no transition. The kinematics of the ladder set is thereby increased and the stability of the ladder set is maintained.
    Preferably, guide elements rest from below and / or from the side and / or from above at the sections of the spars of the first conductor section that are extended beyond the joint axis, thereby ensuring a high degree of safety.
    Preferably, the guide elements are arranged in the head region of the underlying conductor part, whereby the first conductor section is reliably supported or guided up to the head region.
    Preferably, the guide elements are rotatably mounted rollers, whereby friction, effort and noise are reduced.
    Preferably, the spars of the uppermost ladder part comprise a lower flange and a upper flange, wherein the hinge axis of the articulated connection in the lower flange or 11/35 N2012 / 27100 11
    Upper chord of the uppermost ladder part is formed. The training in the form of a lower and upper belt results in a stable ladder part.
    Of course, it is also possible to provide the hinge axis in the area between the upper belt and lower belt.
    Preferably, the uppermost conductor part has substantially the same length as the conductor part lying directly below the uppermost conductor part, whereby strongly projecting conductor parts are avoided and the space required for the ladder set remains low despite high functionality.
    The second conductor section preferably carries at its end remote from the articulation axis (ie at the conductor tip) a platform, in particular in the form of a working basket, for accommodating one or more rescue persons, in particular firefighters, as well as persons and / or loads to be rescued (eg equipment, implements, Etc.).
    Preferably, the ladder set is designed as an aerial ladder, whereby the flexibility is further increased.
    Preferably ladder set on a service vehicle, in particular a fire engine, arranged and is part of an aerial ladder.
    The above-mentioned object is also achieved with a vehicle, in particular a rescue vehicle, with a ladder set, in that the ladder set is designed according to one of the preceding claims.
    For a better understanding of the invention, this will be explained in more detail with reference to the following figures.
    Each shows in a highly schematically simplified representation:
    1 shows a vehicle according to the invention;
    2 shows a ladder set according to the invention;
    FIG. 2a shows a variant of the ladder set from FIG. 2; FIG. 12/35 N2012 / 27100 12
    3 shows a ladder set in a section from below;
    Fig. 4 the ladder set of Figure 3 in the averse position of the second Leiterab section.
    5 shows two conductor parts of a ladder set in an angled position of the second conductor section;
    Fig. 6 shows the mounting of the uppermost ladder section on the underlying ladder section;
    7 shows two conductor parts of a ladder set in the extended position of the second conductor section;
    8 shows a top conductor part with a bent second conductor section;
    9 shows the mounting of the uppermost ladder section on the underlying ladder section in detail;
    10 shows an embodiment of a ladder set with a bent second conductor section, and
    11 shows a further embodiment of a ladder set with a bent second conductor section.
    By way of introduction, it should be noted that in the differently described embodiments, the same parts are provided with the same reference numerals or the same component names, wherein the disclosures contained in the entire description can be mutatis mutandis to the same parts with the same reference numerals or component names. Also, the location information chosen in the description, such as top, bottom, side, etc. related to the immediately described and illustrated figure and are to be transferred to the new situation mutatis mutandis when a change in position. Furthermore, individual features or combinations of features from the different exemplary embodiments shown and described can also represent independent, inventive or inventive solutions. 13/35 N2012 / 27100 13
    The embodiments show possible embodiments of the ladder set, it being noted at this point that the invention is not limited to the specifically illustrated embodiments thereof, but rather also various combinations of the individual embodiments are possible with each other and this possibility of variation due to the teaching of technical action by representational Invention in the skill of those skilled in this technical field. So are all conceivable embodiments, which are possible by combinations of individual details of the illustrated and described embodiment variant, includes the scope of protection.
    For the sake of order, it should finally be pointed out that, for better understanding of the structure of the ladder set, this or its constituent parts have been shown partly out of scale and / or enlarged and / or reduced in size.
    The task underlying the independent inventive solutions can be taken from the description.
    Above all, the individual embodiments shown in the figures can form the subject of independent solutions according to the invention. The relevant objects and solutions according to the invention can be found in the detailed descriptions of these figures.
    1 shows a vehicle 14, for example a fire-fighting vehicle, rescue vehicle or service vehicle, with a ladder set 10 in the form of an aerial ladder. The ladder set 10 includes a plurality of superimposed and telescopically extendable ladder parts 1,2,3, 4. The lowermost ladder part 5 is mounted on the rotating device of the vehicle 14 and carries the respective other ladder parts. The spars 11 of the ladder parts each have a lower flange on which the rungs are attached, and a top flange, which can serve to stiffen the construction and as a gripping aid. The actuating mechanism which causes the extension and retraction of the ladder parts may e.g. comprise a single separation, i. at least the uppermost ladder part 1 can be extended independently of the other ladder parts. The other ladder parts can also be driven by a single extension, 14/35 N2012 / 27100 14 or combined by a common mechanism. Alternatively, all ladder parts can be actuated by a common synchronization extract.
    As is apparent from FIG. 1, the uppermost conductor part 1 consists of two conductor sections 1a, 1b. These are interconnected by a hinge connection 6, which forms a hinge axis 7 parallel to the rungs 12. As a result, the second conductor section 1b, also referred to as a hinge part, can be tilted with respect to the first conductor section 1a. At the head end of the joint part 1b, a platform 15 is mounted in the form of a work basket.
    Like the first conductor section 1a, the second conductor section 1b has rungs 12 extending between the uprights 11 and represents a continuation of the first conductor section 1a. The pivotable second conductor section 1b increases the area of use of a ladder set 10, in particular places which are otherwise difficult to reach can be reached. In addition, the platform 15 can be placed on the ground to accommodate or disembark people.
    In Fig. 1 it is indicated that in each case a free space 8 is formed in the head regions of lying below the uppermost conductor part 1 conductor parts 2, 3, 4, 5. The free spaces formed between the uprights 11 of the respective ladder part are open towards the conductor part tip and continuous between the front side and the back side of the conductor part, i. the free space 8 is free of continuous rungs and extends from the topmost continuous rung up to the head part tip. As a result, the second conductor section 1 b can also be deflected through the clearance 8 in a position in which the articulation axis 7 overlaps with the underlying guide parts. It is therefore no longer necessary to drive the hinge axis 7 beyond the underlying ladder parts.
    Fig. 2 shows for better understanding individual conductor parts 1,2,3 side by side. The uppermost conductor part 1 with its two conductor sections 1a, 1b is in the intended condition on the underlying ladder part 2 and is guided by this. In the fully retracted position of the uppermost conductor part 1 in the underlying conductor part 2, both the first conductor portion 15/35 N2012 / 27100 15 1a and the second conductor portion 1b overlaps with the conductor part 2. The conductor part 2 has in its head region a free space 8, the extends along the spars 11 over the length L and has a width B. The width B is at least chosen so large that the second conductor section 1 b between the bars 11 of the underlying conductor part 2 can be averse.
    The length of the free space 8 (ie the extent of the free space 8 in the direction along the spars 11) is in any case greater than the distance between two adjacent rungs 12 of a ladder part second
    Preferably, the length L of the free space 8 is at least twice as large, more preferably at least three times as large as the regular distance between two adjacent rungs 12 of a ladder part. 2
    In further preferred variants, the length L of the free space 8 is at least a quarter, preferably at least half the length of the second conductor section 1b. In order to enable a disinclination even in the fully retracted position, the length L of the free space 8 is substantially as long as the second conductor portion 1b.
    As can be seen from FIG. 2, the conductor part 3 lying below the second conductor part 2 also has a free space 8 in its head region, the length L of which is slightly smaller than the second conductor part 2.
    In order to be able to lower the second conductor section 1b (joint part) through the free spaces 8, the uppermost conductor part 1 must be extended by a certain distance until the articulation axis 7 comes to rest in the region of the free space 8 of the conductor part 2 underneath. As already mentioned, in an alternative embodiment, the length L of the free space 8 could also be chosen so large that a dislike of the second conductor section 1b is possible even in the fully retracted position.
    It is also not absolutely necessary, as in FIG. 2, for the conductor parts 3, 4, 5 lying below the second conductor part 2 to have a shorter free space 8 than the second conductor part 2. 16/35 N2012 / 27100 16
    2, the feature that the spars 11 of the first conductor section 1a protrude beyond the hinge axis 7 and at least partially overlap with the second conductor section 1b. In the underlying ladder part 2 guide elements 13 in the form of rollers, also called head rollers are formed in the head area. The uppermost ladder part 1 is guided on the guide elements 13, wherein in the fully retracted into the underlying ladder part 2 position of the uppermost conductor part 1 over the hinge axis 7 also extended portions of the bars 11 of the first conductor portion 1a rest on the guide elements 13. The advantage of this embodiment is that the first conductor section 1a is continuously guided or supported by the guide elements 13 designed as rollers. This prevents a height offset or discontinuity during the extension or retraction process in a transition from the second to the first conductor section and vice versa.
    The extending over the hinge axis 7 out sections of the spars 11 are at least twice as long as the distance between two adjacent rungs 12 of a ladder part 1. Preferably, the length of the over the hinge axis 7 also extending portions of the spars 11 at least a quarter, preferably at least half the length of the second conductor section 1b. In addition to rotatably mounted rollers, e.g. Also Gleitklötze come as guide elements 13 are used.
    Fig. 2a shows a variant in which the guide elements 13, e.g. Rolls, located directly at the end of the second conductor section 2. Similarly, lateral guides could be placed in the same area. In the uppermost conductor part 1, the spars 11 of the first conductor portion 1a are preferred to the conductor tip and thus are also in the retracted state of the ladder set 10 on or on the guide elements 13. In the embodiment of Fig. 2, only two conductor parts 1, 2 are provided. Of course, each of the embodiments described in this application can also be realized with more than two ladder parts.
    FIG. 3 shows a ladder set 10 from below with partially extended top ladder part 1. In this embodiment, the length of the free spaces 8 is substantially the same for all in the ladder parts 2, 3, 4, 5 below. The steering axle 7 is already at the height of the free spaces 8. In this position, pivoting of the second conductor section 1b through the free spaces 8 is now possible. Such an angled position of the second conductor section 1b is shown in FIG. 4.
    Fig. 5 shows a position according to FIG. 4 in a side view, wherein only the uppermost conductor part 1 and the immediate underlying conductor part 2 are shown. You can also see the extended spars 11 of the first conductor section 1 a, which are supported by the rollers 13. A drive 16 in the form of a cylinder piston unit causes the pivoting and Aufschwenkbewegung of the joint part 1 b. In the illustrated embodiment, the hinge axis 7 in the region of the lower flange and the drive 16 in the region of the upper flange of the spars 11 is arranged.
    It would of course be conceivable to arrange them in reverse order.
    FIG. 6 shows a detailed view of how the first conductor part 1 is held on the underlying conductor part 2. In this case, the lower flange of the uppermost conductor part 1 rests with a running surface on the rollers 13 of the underlying conductor part 2.
    FIG. 7 shows a variant in which the spars 11 of the first conductor section 1 a extend only to the hinge axis 7. Here, however, the problem arises that the hinge point with the hinge axis 7 must run over the trained as a head rollers guide elements 13, which on the one hand, a discontinuity (height offset) results during extension and retraction and on the other hand, a higher wear at this point is to be expected ,
    As already mentioned, this problem is solved by a top ladder part 1, as it is e.g. is shown in Fig. 8. In this preferred embodiment, the spars 11 of the first conductor section 1a extend beyond the hinge axis 7. As can be seen from FIG. 8, the sections of the spars 11 projecting beyond the hinge axis 7 serve as a gripping aid and facilitate the transition between the two conductor sections 1a, 1b. In addition, the top ladder part 1 can be continuously supported on the spars, in particular by the lower straps, on guide elements 13, in particular the head rollers of the underlying ladder part 2. 18/35 N2012 / 27100 18
    In Fig. 9 is again shown in detail, as the uppermost conductor part 1 is supported on the underlying ladder part 2. In this embodiment, lower rollers 13, on which the uppermost ladder part 1 rests with its running surface, and lateral guide rollers 17, which guide the uppermost ladder part 1 laterally, are provided as guide elements. In order to increase the security in relation to a lifting of the top ladder part 1, a lift-off 18 is provided, which together with a roller 13 forms a gap into which that part of the lower flange of the uppermost ladder part 1 protrudes, which also with the roller 13th forms a communicating tread.
    10 and 11 show two examples of a ladder set 10. The free spaces 8 in the respective underlying ladder parts 2, 3, 4, 5 are of different lengths. Thus, in the ladder set of FIG. 10, a dislike of the illustrated maximum angle is possible. In FIG. 11, the maximum tilt angle in the same constellation is greater than in FIG. 10, since the free space of underlying ladder parts is greater.
    The inventive principle is not limited to the illustrated embodiments. In particular, the length L of the free space 8 in one or all of the underlying ladder parts may vary. However, the clearance 8 is preferably dimensioned such that there are no points in the fully extended position of the entire ladder set 10 along the extended ladder, which are without rungs 12. Preferably, the free spaces 8 in the individual ladder sections are chosen to be exactly the same size that in the fully extended position of the ladder set 10 there are no overlapping rungs of two adjacent ladder sections. With the minimum coverage of the ladder parts in the fully extended position, only the respective overhead ladder section must have rungs in the overlapping areas in order to be able to descend or ascend. 19/35 N2012 / 27100
    LIST OF REFERENCE NUMBERS
    Top ladder part First ladder section of the top ladder part 1
    Second conductor section of the uppermost ladder section 1 Second ladder section of the third ladder section
    Fourth ladder part Fifth ladder part Articulated joint Articulated axis Clearance
    ladder set
    Holme
    Sprouts guide elements
    vehicle
    platform
    drive
    Lateral guide rollers Lift-off protection Length of the free space 8 Width of the free space 8 20/35 N2012 / 27100
    权利要求:
    Claims (20)
    [1]
    1. An extendable ladder set (10), in particular fire ladder, from at least two ladder parts (1, 2, 3, 4, 5), each of spars (11) and between the spars (11) extending rungs (12) are formed in that the uppermost ladder part (1) is formed from at least two conductor sections (1a, 1b) which are interconnected by an articulated connection (6) whose articulation axis (7) is substantially parallel to the rungs (12), wherein the position of the uppermost conductor part (1) fully retracted into the underlying conductor part (2) covers the first conductor section (1a) and the second conductor section (1b) with the underlying conductor part (2), characterized in that at least the immediately under the uppermost conductor part (1) lying conductor part (2) has a free space (8), in the head region of the conductor part (2) between the bars (11), open towards the conductor tip and between the front and back of the Leiterte ils (2) is continuous, so that the second conductor section (1 b) in a position in which the hinge axis (7) with the immediately below the uppermost conductor part (1) lying conductor part (2) overlaps, through the free space (8) through the hinge axis (7) is tilted.
    [2]
    2. ladder set according to claim 1, characterized in that the extension of the free space (8) in the direction along the spars (11) is greater than the distance between two adjacent rungs (12) of a ladder part (2).
    [3]
    3. ladder set according to claim 1 or 2, characterized in that the extension of the free space (8) in the direction along the spars (11) at least twice as large, preferably at least three times as large as the distance between two adjacent rungs (12) one Ladder parts (2).
    [4]
    4. ladder set according to one of the preceding claims, characterized in that the extension of the free space (8) in the direction along the 21/35 N2012 / 27100 2 spars (11) at least a quarter, preferably at least half the length of the second conductor portion (1b ) is.
    [5]
    5. Ladder set according to one of the preceding claims, characterized in that the extension of the free space (8) in the direction along the spars (11) substantially corresponds to the length of the second conductor portion (1b).
    [6]
    6. Ladder set according to one of the preceding claims, characterized in that at least two of the top conductor part (1) lying conductor parts (2, 3) each have a free space (8), so that the second conductor portion (1b) in a position in the hinge axis (7) with the at least two ladder parts (2, 3) overlaps, by the free spaces (8) about the hinge axis (7) is tilted.
    [7]
    7. ladder set according to one of the preceding claims, characterized in that the extension of the free space (8) in the direction along the spars (11) in one of the conductor parts (2) is greater than in the other conductor part (3).
    [8]
    8. Ladder set according to one of the preceding claims, characterized in that all below the uppermost ladder part (1) lying ladder parts (2, 3, 4, 5) each have a free space (8), so that the second conductor portion (1b) in one position in which the underlying ladder parts (2, 3, 4) are completely retracted and the hinge axis (7) overlaps with the underlying ladder parts (2, 3, 4, 5), by the free spaces (8) about the hinge axis (7) tilted is.
    [9]
    9. Ladder set according to one of the preceding claims, characterized in that the spars (11) of the first conductor portion (1a) extend beyond the hinge axis (7) and at least partially overlap with the second conductor portion (1b). 22/35 N2012 / 27100 3
    [10]
    10. ladder set according to claim 9, characterized in that over the hinge axis (7) extending beyond sections of the spars (11) are at least twice as long as the distance between two adjacent rungs of a ladder part (1).
    [11]
    11. Ladder set according to claim 9 or 10, characterized in that the length of the over the hinge axis (7) extending beyond sections of the spars (11) is at least a quarter, preferably at least half the length of the second conductor portion (1b).
    [12]
    12. ladder set according to one of claims 9 to 11, characterized in that the uppermost ladder part (1) on or on guide elements (13, 17) is guided, which are mounted in the underlying ladder part (2), wherein in the completely in the underlying conductor part (2) retracted position of the uppermost conductor part (1) over the hinge axis (7) also extended portions of the spars (11) of the first conductor portion (1a) on or on the guide elements (13, 17) are, and preferably the guide elements (13, 17) abut from below and / or from the side and / or from above on the sections of the spars (11) of the first conductor section (1a) extended beyond the hinge axis (7).
    [13]
    13. ladder set according to claim 12, characterized in that the guide elements (13, 17) in the head region of the underlying conductor part (2) are arranged.
    [14]
    14. Ladder set according to claim 12 or 13, characterized in that the guide elements (13, 17) are rotatably mounted rollers.
    [15]
    15. ladder set according to one of the preceding claims, characterized in that the spars (11) of the uppermost ladder part (1) comprise a lower flange 23/35 N2012 / 27100 4 and a top flange, wherein the hinge axis (7) of the articulated connection (6) is formed in the lower chord or upper chord of the uppermost ladder part (1).
    [16]
    16. Ladder set according to one of the preceding claims, characterized in that the uppermost conductor part (1) has substantially the same length as the immediately below the uppermost conductor part (1) lying conductor part (2).
    [17]
    17. Ladder set according to one of the preceding claims, characterized in that the second conductor section (1b) at its the hinge axis (7) facing away from a platform (15), in particular in the form of a work basket, and / or implements carries.
    [18]
    18. Ladder set according to one of the preceding claims, characterized in that the ladder set (10) is part of an aerial ladder.
    [19]
    19. Ladder set according to one of the preceding claims, characterized in that the ladder set (10) is arranged on a service vehicle, in particular a fire engine.
    [20]
    20. Vehicle (14), in particular Flubrettungsfahrzeug, with a ladder set, characterized in that the ladder set (10) is designed according to one of the preceding claims. 24/35 N2012 / 27100
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    同族专利:
    公开号 | 公开日
    AT513614B1|2014-06-15|
    EP2935751B1|2017-02-01|
    KR102161136B1|2020-10-05|
    US20150345220A1|2015-12-03|
    US9889325B2|2018-02-13|
    CN105143588B|2017-04-26|
    EP2935751A1|2015-10-28|
    KR20150103689A|2015-09-11|
    WO2014094026A1|2014-06-26|
    CN105143588A|2015-12-09|
    JP6339589B2|2018-06-06|
    JP2016506464A|2016-03-03|
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    法律状态:
    优先权:
    申请号 | 申请日 | 专利标题
    ATA50617/2012A|AT513614B1|2012-12-21|2012-12-21|Ladder set, especially fire chief, as well as equipped vehicle|ATA50617/2012A| AT513614B1|2012-12-21|2012-12-21|Ladder set, especially fire chief, as well as equipped vehicle|
    EP13831849.8A| EP2935751B1|2012-12-21|2013-12-20|Set of ladders, in particular fire ladder and vehicle equipped therewith|
    KR1020157019749A| KR102161136B1|2012-12-21|2013-12-20|Set of ladders, in particular fire ladder and vehicle equipped therewith|
    PCT/AT2013/050259| WO2014094026A1|2012-12-21|2013-12-20|Set of ladders, in particular fire ladder and vehicle equipped therewith|
    JP2015548109A| JP6339589B2|2012-12-21|2013-12-20|Ladder sets, especially fire fighting ladders and vehicles equipped with them|
    CN201380073431.4A| CN105143588B|2012-12-21|2013-12-20|Set of ladders, in particular fire ladder and vehicle equipped therewith|
    US14/654,072| US9889325B2|2012-12-21|2013-12-20|Set of ladders, in particular fire ladder and vehicle equipped therewith|
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