• 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:
    In a trolley especially rolling containers for fire departments, with a chassis (2) which is provided on one side with a control frame (4) and four rollers (3) is recorded, of which at least two arranged as a pair of castors with a pivot bearing (11) with a chassis-fixed upper part (12) and with respect to this rotatable, an associated wheel (6) receiving lower part (13) are formed, wherein the wheel (6) of each roller (3) is preferably associated with a brake drum brake device is assigned to the education a dead man's brake by a contact spring (17) constantly acted upon in the activation direction and by means of an actuator with an operating frame (4) provided in the control device (7) and a forthcoming motion transmission device against the action of the engagement spring (17) can be ventilated, can thereby a high reliability and ease of use, that the lower part (13) the pivot bearing (11) of each steering roller is associated with a locking device coupled to the braking device (18), by which the associated lower part (13) can be locked in any current rotational position.
    公开号:AT14443U1
    申请号:TGM21/2014U
    申请日:2014-01-21
    公开日:2015-11-15
    发明作者:
    申请人:Günzburger Steigtechnik Munk GmbH；
    IPC主号:
    专利说明:

    description
    TROLLEY
    The invention relates to a trolley, especially a roll container for fire departments, with a chassis which is provided on one side with a control frame and accommodated on four rollers, of which at least two arranged as a pair of swivel castors with a pivot bearing with a chassis-fixed shell and one opposite this rotatable, an associated wheel receiving lower part are formed, wherein the wheel of each roller is preferably associated with a drum brake brake device is applied to form a dead man's brake by an engagement spring permanently in the activation direction and provided by an actuator with a in the region of the operating frame Operating device and an outgoing therefrom motion transmission device against the action of the engagement spring can be ventilated.
    In common arrangements of this type two roles are usually designed as fixed castors and two rollers as castors, which allows a high level of comfort. But arrangements with four castors have already been proposed, which allows lateral driving and maneuvering. In order to still allow a high level of ride comfort, at least two paired steering rollers are provided with a directional locking device for straight running in such arrangements. This direction detecting device can be actuated independently of the braking device embodied as a dead man's brake and fixes the respectively associated steering roller only in the rotational position suitable for straight-ahead operation. Only one fixing position is therefore provided. For lateral maneuvering, etc., the directional detection device must be put out of action. After completion of such maneuvering the steering roller in question is usually rotated with respect to the direction of straight-ahead, so that the direction detection device can not be brought into the desired fixation position.
    In the park state, although the dead man's brake acting on the wheels is activated in any case. However, if the direction detecting device can not be inserted, it may still come to a rotational movement of the rollers and as a result to a so-called. Prancing the trolley. This is especially true when the trolley is parked on a motor vehicle, for example in the form of a fire truck, which can occur during the course of driving in the direction of travel and acting transversely thereto acceleration forces. By the mentioned prancing can lead to a mutual wedging and damage adjacent trolleys and their charge, which is undesirable and in particular prevents rapid deployment, but what matters in the fire and disaster control just.
    On this basis, it is therefore an object of the present invention to improve a trolley of the type mentioned with simple and inexpensive means so that the castors are reliably secured in each parking position regardless of their rotational position against rotation.
    This object is achieved in that the lower part of the pivot bearing each swivel castor is associated with a coupled to the braking device locking device by which the associated lower part can be locked in any current rotational position.
    Since the locking device is coupled to the trained as a dead man's brake device and thus activated or passivated together with this, resulting in an advantageous manner with respect to the locking device, the same automatic as in the dead man's brake, i. that an automatic activation takes place as soon as an operating element is released and a passivation is possible only by active actuation of the operating element. This ensures advantageously that in each parking position not only the wheels of the castors automatically braked, but also the rollers are automatically blocked against rotation, so that unwanted movements of any kind are excluded. This
    Advantage is especially strong when used on firefighters vehicles rolling containers particularly strong, since such emergency vehicles are usually comparatively fast and fast on the road, so that acting on recorded roll container inertial forces in different directions are to be expected.
    Advantageous embodiments and expedient developments of the parent measures are specified in the dependent claims and from the following example description with reference to the drawing closer.
    Thus, the locking device expediently attached to a part of the pivot bearing, concentric with the pivot bearing axis series of locking member receptacles and the other part of the pivot bearing associated, each having a locking member receiving locking member having on an element of the brake provided for actuating device is included. These measures result in an advantageous manner a positive locking of the pivot bearing of each swivel castor and thus a high reliability in a simple structure. At the same time thereby the desired coupling of the operation of the braking device and the locking device is achieved in a simple manner.
    Advantageously, the concentric to the pivot bearing axis series of locking member receptacles preferably connected to the stationary upper part of the pivot bearing bolt circle and the locking member as axially displaceable, preferably be connected to the rotatable lower part of the pivot bearing bolt. This results in a meaningful, simple and inexpensive design.
    In connection with an embodiment of the braking device as a drum brake, the actuating device includes a rotary bearing coaxial with the axis of rotation sweeping plunger. This acts expediently with a locking member supporting, to a radachsparalle-le, pivotally connected to the lower part of the pivot bearing first pivot lever together, on which a leading to the brake device second pivot lever is articulated. This results in a particularly simple coupling of braking device and locking device.
    Expediently, the bolt circle forming the locking member recordings can be assigned to a disk part encompassed by the lower part and firmly connected to the upper part of the rotary bearing. This results in a particularly clear and space-saving arrangement.
    In a further development of the parent measures, each swivel castor may be associated with an engagement spring, which is designed as a leg spring, which is pivotally received at one end on the wheel axle and rests on the bearing of the second pivot lever and with its other end at the upper end of the second pivot lever attacks. The leg spring forms a simple and robust component, which reliably applies the required engagement force.
    Advantageously, the pivot bearing centrally sweeping plunger with its upper end with a cam cooperating, which is received on a transverse to the carriage longitudinal direction shaft, which is provided with at least one radial arm, by at least one tension member with the in the region of the operating frame provided operating device is connected. As far as the remote from the operating frame rollers are designed as swivel castors, the associated traction elements can be suitably designed as Bowden cables. If at the same time the operator frame near rollers are designed as swivel castors, the shafts associated with them can be suitably coupled via connecting elements designed as rods to the shafts provided in the region of the rollers remote from the operator frame. In this way, an undesirable for reasons of space undesirable direct connection of the near-frame waves to the operating element provided on the operating frame is advantageously unnecessary.
    A further advantageous measure may consist in that each steering roller is assigned a direction of rotation locking device, by means of which it can be determined for driving straight ahead. By pressing the direction of rotation detection device receives the associated
    Castor practically the function of a so-called castor, which is favorable for driving comfort when driving straight ahead. Expediently, each control element for actuating the direction of rotation locking device may be provided in the region of the service frame side end of the car, wherein expediently the direction of rotation detection device of remote control frame steering wheels a common, preferably designed as a pedal control element can be assigned.
    Further advantageous embodiments and expedient developments of the higher-level measures are specified in the remaining subclaims and from the following example description with reference to the drawing closer.
    In the drawing described below: Figure 1 is a perspective view of a fire department roll container, Figure 2 is a plan view of the arrangement of FIG. 1 from below, Figure 3 shows the detail III in Figure 2 on an enlarged scale, FIG. 4 shows a side view of FIG. 3 with the braking and locking device released, and [0021] FIG. 5 shows the arrangement according to FIG. 4 with the braking and locking device activated.
    Main field of application of the trolley according to the invention are so-called. Fire department roll containers, which are carried on emergency vehicles and serve for a simple, independent of the emergency vehicle further transport of recorded equipment to the site.
    The figure 1 underlying fire department roll container 1 consists of a frame formed by a chassis 2, which is received on four arranged in the region of their corners rollers 3 and is provided on one side with an upstanding, here portal-shaped operating frame 4. The operating frame 4 associated page of the roll container 1 corresponds to the operating side. Each of the rollers 3 has a wheel 6 rotatably mounted about a horizontal axis on an associated mounting bracket 5. The operating frame 4 serves to move and maneuver the rolling container 1 and contains an operating device 7 for operating a braking device assigned to the wheels 6 of the rollers 3 the rollers 3, insofar as these are designed as castors, associated locking device. The operating device 7 includes a between the lateral legs of the operating frame 4 extending, attached to side pivot plates 8 and ver-pivotable with these control bar 9, which is associated with an adjacent, stationary arranged support cross member 10. This facilitates manual tightening of the pivotable control bar 9.
    The rollers 3 may be formed in pairs as so-called fixed castors or castors. In the example shown, all rollers 3 should be designed as castors. In this case, the support bracket 5 of the steering rollers is assigned in each case one in Figure 1 and also in Figures 2 and 3 only indicated pivot bearing 11, which allows rotation of the support bracket 5 relative to the chassis 2 about a vertical axis. The pivot bearing 11 has, as best seen in Figures 4 and 5 can be seen, attached to the chassis 2, stationary upper part 12 and a thereto by rolling bodies rotatably mounted lower part 13, from which the mounting bracket 5 projects downward. The support bracket 5 has two associated with the wheel 6 flanking side legs, which are bridged by a wheel 6 receiving axis 14.
    The wheel 6 of each roller is associated with a brake device not shown, which should be designed here as a drum brake. The structure and operation of such a drum brake are known per se and therefore need in the present context no more detailed explanation more. In Figures 4 and 5 arranged only in a brake drum brake shoes 15 are indicated, which are mutually pivotable and spread apart by rotating a Spreizorgans and thus can be brought into engagement with the brake drum. The spreading member provided inside the brake drum is connected to a pivot pin 16 arranged outside the brake drum and to which an element of the movement transmission device of the actuating device, which originates from the operating device 7, engages.
    The rollers 3 associated braking device is formed in each case as a so-called dead man's brake, which is acted upon by an engagement spring 17 permanently in the activation direction and by manual operation of the operating device 7, i. Here tightening the control bar up, contrary to the action of the engagement spring 17 can be ventilated. The pivot bearing 11 of each swivel castor is also associated with a locking device 18 which is coupled to the braking device so that it locks the associated pivot bearing 11 against rotation when the braking device is activated and releases it when the braking device is released. This ensures that in a blocking of the wheel 6 by the associated braking device and the associated pivot bearing 11 is blocked against rotation.
    The locking device 18 has, as indicated in Figures 2 and 3 and Figures 4 and 5 show in more detail, with a part of the pivot bearing 11, suitably connected to the rotatably mounted lower part 13, to the pivot bearing axis concentric series of locking member receivers 19th and one with the other part of the pivot bearing 11, suitably connected to the stationary upper part 12, in each case a locking member receptacle 19 retractable locking member 20. The figure 4 shows the retracted state, the figure 5 the extended. The locking member 20 is received on an element of the provided for ventilating the braking device actuator.
    The concentric to the pivot bearing axis series of locking member receptacles 19 is in the example shown, as Fig. 3 shows clearly, designed as a pivot bearing axis concentric bolt circle. Accordingly, the locking member 20 is formed as an axially movable pin. But other designs would be conceivable. Thus, for example, the series of locking member receptacles 19 may be formed as a toothing with the locking member receptacles 19 forming tooth gaps, in each of which the associated locking member 20 forming locking tooth can be inserted. Suitably, the locking member receptacles 19, as the figures 4 and 5 further show a, arranged below the rotatable lower part 13 of the pivot bearing 11, by a central sleeve 21 fixed to the stationary upper part 12 associated disc member 22. This can be partially surrounded by an outer collar of the lower part 13.
    Each pivot bearing 11 is, as Figs. 4 and 5 further show, a central, coaxial with the axis of rotation, an element of the brake device and locking device associated actuator forming plunger 23 assigned. This acts with its lower end with a first pivot lever 24 together, on which in the example shown designed as a bolt locking member 20 is arranged. At the first pivot lever 24, a second, projecting from the pivot pin 16 of the braking device pivot lever 25 is articulated with degree of freedom of displacement. In the example shown, the first pivot lever 24 is provided for this purpose with a land hole 26, in which a laterally projecting from the second pivot lever 25 pin 27 engages. The first pivot lever 24 and second pivot lever 25 are pivotally connected about its axis pivotally connected to the movable lower part 13 of the pivot bearing 11. For this purpose, in the example shown, a provided within the bracket 5, the wheel 6 adjacent bearing tab 28 is provided on which the first pivot lever 24 is pivotally mounted and which is penetrated by the second pivot lever 25 supporting pivot 16 of the braking device. The bearing bracket 18, which protrudes downward from the lower part 13, is received with its lower end on the wheel axle 14.
    The engagement spring 17 is formed in the example shown as a leg spring, which is received at its lower end on the wheel axle 14, rests with its central region in the form of a bend on the pivot pin 16 and with its upper end to the upper end portion of the second Swing lever 25, here cooperates with the pin 27 provided there.
    The plunger 23 of each pivot bearing 11 cooperates with its upper end with a rotatable cam 29. When the operating cross member 9 is tightened, the cam 29 according to FIG. 4 is twisted so that the plunger 23 cooperating therewith is pressed down and accordingly the first pivoting lever 24 cooperating therewith is pivoted downwards, whereby the blocking member 20 received thereon is out of engagement with the blocking member receptacle 19. Accordingly, the locking device 18 thus formed is set out of action and the relevant steering role swiveled about its vertical steering axis. At the same time, the second pivoting lever 25 is pivoted so that the pivot pin 16 connected thereto releases the braking device. Once the control bar 9 is released, the engagement spring 17 causes a provision of the pivot lever 24, 25 and the plunger 23 in the starting position on which the Figure 5 is based, in which the locking member 20 is raised and inserted into a locking member receptacle 19 and the brake shoes 15 to the associated brake drum are pressed, so the braking device and the locking device are activated.
    To the provided in the region of each pivot bearing 11 cam 29 is one of these driving shaft, which is formed in the example shown as the respective associated cam 29 against rotation receiving, here provided with a hexagonal cross-section shaft socket 30. Each pivot bearing 11 is, as best seen in Figure 2 can be seen, a shaft stub 30 assigned. The mutually axially opposite shaft stubs are suitably bridged by a central piece 31. This practically continuous between two opposing rollers shaft assembly is rotated to actuate the respective associated cam 29 by a certain angle. For this purpose, the shaft arrangement can be provided with a radial pivot arm, on which a corresponding pushing or pulling force is introduced. However, the tensile or thrust force is expediently introduced in the region of each lateral shaft stub 30, which counteracts the risk of excessive twisting between the introduction of force and the cam.
    In the example shown, both shaft stub 30 of the two remote frame rollers 3 each have a radial arm 32 is assigned to each of which a Bowden cable 33 attacks, on the other hand engages the pivoting flap 8 provided in the upper region of the operating frame 4 control device 7. A similar arrangement may also be associated with the shaft stub 30 of the operator frame near rollers 3. In the example shown, the pivoting movement of the remote operator shaft assembly by connecting rods 34 is transmitted to the near the frame near the shaft assembly. Each shaft stub 30 is assigned a connecting rod 34, so that, according to FIG. 2, two lateral connecting rods 34 result. These are articulated with their ends to associated radial arms of the associated shaft stub 30. This may be the already mentioned radial arms 32. In the example shown, the connecting rods 34 are associated with appropriate, own radial arms 35 as shown in Figures 2 and 3 can be seen.
    The connecting rods 34 are suitably arranged so that, as can be seen from Figures 1 and 2, pass through a central cross member 2a of the chassis 2, resulting in a central support. The Bowden cables 33 can in the region of the operating frame 4 in the inwardly open, i. be facing one another screwed lateral channels of the operating frame 4, as indicated in Fig. 1. In the area of the frame 2 forming the frame, the Bowden cables 33 extend in the region between the lateral frame spars and are also carried out by the central cross member 2a for effecting a support.
    At least one pair of rollers 3 formed as castors, preferably all castors, each associated with a direction of rotation locking device, which serves to fix the relevant steering roller for straight running, i. Lock the pivot bearing so that it performs a function similar to a caster. This direction of rotation locking device, in contrast to the locking device 18 explained in more detail below, can be actuated independently of the braking device.
    The direction indicated in Figures 4 and 5 direction of rotation locking device is practically designed as a toothed coupling, which is connected to a part of the pivot bearing 11, here with the stationary upper part 12 latch 36 and one with the other part of the pivot bearing 11, here with the rotatable Lower part 13 has associated notch 37, in which the latch 36 is retracted to activate the direction of rotation detection device. Figures 4 and 5 is based on the retracted state. There are only one notch 37 and, accordingly, only one fixing position, namely the position associated with the straight-line runout.
    The operation of the latch 36 of the direction of rotation locking devices 35 of all castors is expediently carried out in the area of the operating side of the roll container 1. The near-side swivel castors can be assigned to this adjacent controls. The bars 36 of the operator side remote castors here is a common control in the form of a near the frame near the frame crossbar of the chassis 2 arranged, apparent from the figures 1 and 2 associated pedals 38. This is, as the figures 1 and 2 show further connected via a rod 39 with a crossbar 40. At this, the latch 36 of the two remote control frames steering wheels are mounted, as can be seen from Figures 4 and 5. Each latch 36 may be associated with a detent spring 41, against which with the aid of the associated control element such as the pedal 38, the bolt 36 can be brought out of engagement position and the other hand, when released by the pedal 38 etc. accomplish an indentation.
    权利要求:
    Claims (10)
    [1]
    Rolling trolley, in particular roll container for fire brigades, having a chassis (2) which is provided on one side with a control frame (4) and accommodated on four rollers (3), of which at least two steering rollers arranged in pairs with a swivel bearing (3). 11) are formed with a chassis-fixed upper part (12) and a relative to this rotatable, a corresponding wheel (6) receiving lower part (13), wherein the wheel (6) of each roller (3) is preferably associated with a brake drum brake device is assigned to form a dead man's brake by a contact spring (17) permanently acted upon in the activation direction and by means of an actuator with a provided in the region of the operating frame (4) operating device (7) and an outgoing movement transmission device against the action of the engagement spring (17) is ventilated, characterized in that the lower part (13) of the pivot bearing (11) of each swivel castor is provided with a brake insert associated locking device is coupled (18), by which the associated lower part (13) can be locked in any current rotational position.
    [2]
    2. Trolley according to claim 1, characterized in that the locking device (18) attached to a part of the pivot bearing (11), concentric with the pivot bearing axis series of locking member receptacles (19) and the other part of the pivot bearing (11) associated, in each case a locking member receptacle (19) retractable locking member (20) which is received on an element of the provided for ventilating the braking device actuator.
    [3]
    3. trolley according to claim 2, characterized in that the locking member receptacles (19) with the stationary upper part (12) and the locking member (20) receiving element of the actuating device with the lower part (13) are connected.
    [4]
    4. trolley according to claim 2 or 3, characterized in that the concentric to the rotary bearing axis series of locking member receptacles (19) as a bolt circle and the locking member (20) are designed as axially movable bolt.
    [5]
    5. Rolling trolley according to one of claims 2 to 4, characterized in that in an embodiment of the brake device as a drum brake, the associated actuating device has a pivot bearing (11) coaxial with the axis of rotation thorough plunger (23) having a locking member (20) supporting, cooperating about a radachsparallele axis pivotally connected to the lower part (13) first pivot lever (24) on which a braking device leading second pivot lever (25) is articulated with degree of freedom of movement, wherein the second pivot lever (25) with a lateral pin (27 ) engages in an associated slot (26) of the first pivot lever (24) and cooperates with the engagement spring (17).
    [6]
    6. trolley according to one of the preceding claims 2 to 5, characterized in that the concentric to the pivot bearing axis arranged Sperrgliedaufnahmen (19) from the lower part (13) of the pivot bearing (11) at least partially encompassed, with the stationary upper part (12) fixedly connected disc element (22) are assigned.
    [7]
    7. Trolley according to one of claims 5 to 6, characterized in that from the lower part (13) of the pivot bearing (11) an axis (14) for the associated wheel (6) supporting support bracket (5) protrudes downwards and within the Support bracket (5) a the wheel (6) adjacent bearing tab (28) is provided, on which the first and the second pivot lever (24, 25) are accommodated.
    [8]
    8. trolley according to one of claims 5 to 7, characterized in that the engagement spring (17) is designed as a leg spring which is pivotally mounted with one end on the wheel axle (14) and on the pivot (16) of the second pivot lever ( 25) rests and engages with its upper end at the upper end region, preferably on the lateral pin (27) of the second pivot lever (25).
    [9]
    9. trolley according to one of claims 5 to 8, characterized in that the plunger (23) cooperates with its upper end with a cam (29) which is received on a shaft stub (30) with at least one radial arm (32). is provided, which is connected with the operating device (7) to transmit motion, wherein the shaft stub (30) of each drum brake is associated with its own radial arm (32) and wherein the remote from the operator frame rollers (3) associated radial arms (32) by a respective Bowden cable (33 ) are connected to the operating device (7) and the remote from the operator frame shaft stub (30) with the opposite, close to the operating frame near the shaft stub (30) by a respective connecting rod (34) are coupled in terms of movement.
    [10]
    10. Trolley according to one of the preceding claims, characterized in that each swivel castor is associated with a respective displaceable latch (36) and a notch associated therewith (37) having direction of rotation locking device, with which the associated pivot bearing (11) is fixable for straight ahead, said the direction of rotation of all trained as castors rollers (3) from the area of the operating frame side end of the chassis (3) are operable and wherein the Bedienienrahmenfernen roles (3) is assigned a common, preferably designed as a pedal control element (38) by a rod ( 39) is connected to a crossmember (40) on which the latches (36) of the direction of rotation locking means of both operating frame-distant rollers (3) are accommodated. For this 3 sheets of drawings
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    同族专利:
    公开号 | 公开日
    DE202013000849U1|2013-02-20|
    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    US2253824A|1939-02-03|1941-08-26|Townsend Charles Ralph|Caster for application to vehicles|
    US3061049A|1960-07-18|1962-10-30|William S West|Braking system|
    EP3232242B1|2016-04-14|2019-12-04|Leica InstrumentsPte. Ltd.|Microscope with stand brake|
    DE202020105482U1|2020-09-25|2022-01-07|Wanzl GmbH & Co. KGaA|Container|
    法律状态:
    2019-09-15| MM01| Lapse because of not paying annual fees|Effective date: 20190131 |
    优先权:
    申请号 | 申请日 | 专利标题
    DE201320000849|DE202013000849U1|2013-01-29|2013-01-29|trolley|
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