DE202018005141U1 - Cart, preferably handcart, for the transport of fire brigade, rescue and / or civil protection equipment - Google Patents

Abstract

Carriage (1), preferably handcart (1), for transporting fire brigade, rescue and / or civil protection equipment,
a frame (10) which is at least substantially horizontally aligned and adapted to receive the equipment,
with rollers (11a, 11b) arranged on the frame (10),
wherein at least one roller (11a, 11b) has at least one braking device (20),
with at least one horizontal element (24a, 24b), which is horizontally movable relative to the frame (10) and designed to release at least one braking device (20),
with a handle (13) which is designed to be gripped by at least one hand of a user for guiding the carriage (1),
with a handle bar (28) which is adapted to be operated by the user's hand when the user grips the handle (13), and
with at least one vertical element (27a; 27b), which is at least substantially vertically movable relative to the frame (10) and adapted to transmit the actuation of the handle (28) to the horizontal element (24a; 24b),
characterized in that
the vertical element (27a; 27b) is further configured to be moved downwardly by the handle bar (28) at least substantially vertically and to push the horizontal element (24a; 24b) away horizontally.

Description

The present invention relates to a carriage, preferably a handcart, for transporting fire, rescue and / or disaster control equipment according to the preamble of claim 1 protection.

The transport of objects by persons is required in many technical fields. It also includes that in firefighting, rescue and disaster relief operations, equipment is provided by a person from a place of deployment, such as a shipyard. from a fire truck, from an ambulance or from a civil protection vehicle to a location such as e.g. must be transported to an accident site.

Since such equipment can be correspondingly large and / or heavy, it is common to place the equipment on a cart and to have the car pulled or pushed by the person. In particular, carriages are used, which have a handle in order to be grasped by the person at about the abdominal to chest height and moved by pushing from both hands. Such cars can be referred to as a handcart or as a trolley. Such handcart usually have a rectangular frame, which is horizontally aligned and has two longitudinal struts and two transverse struts. The frame usually has at its corners in each case one of four rollers, which may be designed as castors or castors. On a narrow end face of the frame, which faces the user, usually extends a bow-shaped handle.

Usually, two of the four rollers or all four rollers each have a braking device over which the roller can be braked. The braking devices can usually be solved together via a handle bar, which runs parallel to the handle in such a way that the handlebar can be operated by the user when he grasps the handle with his hands and moves the handle bar towards the handle.

Such trolleys are, for example, for the above purpose from the DE 20 2007 009242 U1 and from the DE 20 2011 050 838 U1 known, which differ in how the braking devices can be operated by means of the bracket.

In the roll container of DE 20 2007 009 242 U1 two fixed castors are arranged at the front edge of the frame, which each have a Totmannbremseinrichtung, which can be solved by pressing the handle bar (here: swivel bracket) by the user. The dead man's brake device is ventilated by means of an operating element and automatically goes into the braking position as soon as the operating element is not actuated by the user. The brake pads of the two dead man brake devices are connected to each other via a common transverse hexagonal shaft, which is provided with a radial arm, which acts on a horizontally arranged rod. The rod can be moved back and forth via a spring-loaded, pivotable about a vertical axis, two-armed lever. The rod is connected via a pivotable toggle lever with a vertically extending rod, which in turn is pivotally connected to the swivel bracket as a handle of the roll container. The spring of the rod presses the rod forward and thereby actuates the Deadman brake devices via the two radial arms. If the handle of the roll container of DE 20 2007 009 242 U1 pulled up by the user up to the handle bar out, so the hexagonal shaft is rotated about its longitudinal axis over the plurality of deflections described above, and thereby the two dead man brake devices are released, so that the fixed castors can move.

A disadvantage is the operation of Totmannbremseinrichtungen the roll container of DE 20 2007 009 242 U1 in that a plurality of deflections are required in order to transmit the pulling movement of the handle bar to the hexagonal shaft of the dead-man brake devices. This can make the implementation of this braking device consuming and complicated in construction and assembly and expensive to manufacture, since numerous items to construct, manufacture or procure and assemble with each other.

The disadvantage here is that the numerous relatively movable parts and in particular the deflections can each have a game that can increase in the course of use. It may also come to a release of the mechanical connections of the deflections, so that an actuation of the dead man's brake devices can no longer be possible. This can adversely affect the use, reliability and life of the braking device.

The play of the mechanical connections of the deflections may also necessitate a readjustment of the movable mechanical elements, for example after a transport or after an application, which not only entail an additional expense for the user but can also be carried out erroneously by the user. The latter may be the function of the braking device affect. A further disadvantage here appears that the exposed extending rods, rods, levers and joints of the baffles may be prone to be damaged, dirty and / or blocked by foreign bodies. This may apply in particular to the spring between the lever and hexagonal shaft.

A further disadvantage is that the exposed rods, rods, levers and joints of the deflections can also endanger persons, as these are e.g. The fingers, garments, etc. between the accessible moving parts jam and thereby injure or damage them.

In the car of DE 20 2011050 838 U1 have all four roles, which are designed as castors, a drum brake. The drum brakes of the two left swivel castors can be actuated by a brake lever mounted thereon via a mounted on a handle brake lever by a vertical movement, thereby simultaneously via a parallel brake linkage in the transverse direction on the frame opposite the drum brakes of the two right castors are operated. The two brake rods run horizontally on the inside of the carriage frame and vertically on the inside of the handlebar parallel to each other. The brake linkages each have a plurality of deflection joints.

For the car of DE 20 2011050 838 U1 Therefore, the same disadvantages apply as before regarding the roll container of DE 20 2007 009 242 U1 described. The disadvantage is thus especially in the operation of the drum brakes of the car DE 20 2011 050 838 U1 in that a plurality of deflections are required to transmit the movement of the handle to the drum brakes of the castors. This can make the implementation of this braking device consuming and complicated in construction, installation and expensive to manufacture, since numerous items to construct, manufacture or procure and assemble. Another disadvantage is that the numerous deflections have game and can be solved over time, which can adversely affect the reliability of the braking device and their life. Furthermore, also applies to the braking device of the car of DE 20 2011050 838 U1 in that a readjustment of the movable mechanical elements, eg after transport or after use, may also be necessary here, which not only means an additional effort for the user but can also be carried out erroneously by the user, whereby the function of the braking device can be impaired ,

An object of the present invention is to provide a car and in particular a handcart of the type described above, so that the braking devices of the rollers can be operated easier, more reliable and / or durable than previously known. Additionally or alternatively, the transmission of a user's hand movement to the brake devices of the rollers should be easier and / or cost-effective than previously known. In particular, the number of moving parts, which are required for transmitting a hand movement of the user to the braking means of the rollers to be reduced. Alternatively or additionally, the assembly of the trolley should be simplified. Alternatively or additionally, a readjustment of the mechanical elements for transmitting a hand movement of the user to the braking means of the rollers can be simplified or preferably omitted. At least an alternative to known such cars and especially handcart should be created.

The object is achieved by a car, preferably by a handcart, for the transport of fire, rescue and / or disaster control equipment with the features of claim 1 protection. Advantageous developments are described in the subclaims.

Thus, the present invention relates to a cart, preferably a handcart, for transporting firefighting, rescue and / or civil defense equipment with a frame which is at least substantially horizontally oriented and adapted to receive the equipment, with rollers arranged on the frame, wherein at least one roller has at least one braking device, with at least one horizontal element which is horizontally movable relative to the frame and designed to release at least one braking device, with a handle which is adapted to be gripped by at least one user's hand for guiding the carriage be operated with the handle bar, which is adapted to be operated by the user's hand when the user grips the handle, and with at least one vertical element which is at least substantially vertically movable and formed relative to the frame, the operation of the Gri to transfer to the horizontal element.

The carriage according to the invention is characterized in that the vertical element is further adapted to be moved by the handle bar at least substantially vertically downwards and to push the horizontal element away horizontally. In other words, according to the invention Vertical element designed to exert a pressure on the horizontal element and thereby displace the horizontal element horizontally. According to the invention can be exercised in this way by the vertical element, a change in the direction of movement by approximately 90 ° on the horizontal element and thereby on the braking devices to actuate or to solve them. Since a transmission of a movement as pressure can be mechanically simpler, safer and / or more reliable than the deflections of the roll container of the DE 20 2007 009 242 U1 as well as the car of DE 20 2011050 838 U1 , Can be created in this way an operation of the braking devices, which the disadvantages of the roll container of DE 20 2007 009 242 U1 as well as the car of DE 20 2011 050 838 U1 overcomes.

According to one aspect of the present invention, the vertical element and the horizontal element are unconnected. In other words, although the vertical element and the horizontal element can act in an oppressive manner with each other, there is no direct mechanical connection between the vertical element and the horizontal element, via which tensile forces or tensile movements can be transmitted. This can enable the mechanical interaction described above by means of a simple mechanical construction.

According to a further aspect of the present invention, the horizontal element has a contact element with an inclined surface and the vertical element has a pressing element which is designed to push the inclined surface of the horizontal element horizontally away, or vice versa. In other words, the horizontal element has an inclined surface, which can receive the deflection of the vertical pressure force of the vertical element and can deflect from the vertical to the horizontal. The vertical element can exert this force on the pressing element on the slope of the horizontal element. The same interaction can also be achieved in the reverse arrangement by the vertical element has an inclined surface and the pressing member is arranged on the horizontal element. In this case, the inclined surface of the vertical element would press on the pressing element of the horizontal element, which in this case can be understood as pressure-receiving.

According to a further aspect of the present invention, the contact element and the pressing element in the transverse direction, preferably facing the center, are offset relative to the horizontal element or the vertical element. This can make it possible to produce the contact element and the pressing element as separate components and to arrange by mounting on the vertical element or on the horizontal element. This can simplify the production and allow greater freedom in the production of the contact element and the pressing member. The fact that the contact element and the pressing member are arranged on the vertical element or the horizontal element, the contact element and the pressing member can be brought into the same plane in order to interact with each other as described above.

According to a further aspect of the present invention, the contact element is designed to be vertically and / or horizontally displaceable relative to the horizontal element or relative to the vertical element, so that the position of the contact between the oblique surface of the contact element and the horizontal element or the vertical element is variable. In this way, the time when when pressing the vertical element, a contact relative to the horizontal element occurs and this is moved horizontally, can be varied by the positioning of the contact element relative to the pressing member. This may allow the user to make adjustments in this regard.

According to a further aspect of the present invention, the contact element has at least one fastening means receiving, which is adapted to receive a fastening means such that the contact element can be arranged vertically and / or horizontally displaceable on the horizontal element or on the vertical element, wherein the fastener receiving preferably a slot and the attachment means is preferably a screw. In this way, a simple mechanical implementation of the previously described displaceability can be achieved, which can also be securely and permanently attached.

According to a further aspect of the present invention, the contact element is designed so as to be rotatable relative to the horizontal element or relative to the vertical element, so that the angle of contact between the inclined surface of the contact element and the horizontal element or the vertical element is variable. In this way, a variation of the time can also be made by the user, when during the movement of the vertical element, a contact with the horizontal element comes about and this is pushed away from the vertical element. Again, the interaction between the vertical element and the horizontal element can be influenced by the user.

According to a further aspect of the present invention, the braking device has at least one actuating lever which is formed to be pressed and thereby to release the braking device, wherein the horizontal element comprises a pressing member which is adapted to press the operating lever of the braking device horizontally. This can provide a simple and mechanically reliable way of transmitting the horizontal movement of the horizontal element to the braking device.

According to a further aspect of the present invention, the actuating lever is arranged on a shaft, preferably on a hexagonal shaft, of the braking device, wherein the braking device is designed to be released by pressing the actuating lever as a rotational movement of the shaft. In this way, a simple and reliable mechanical transmission of a horizontal movement can be converted into a rotational movement of a shaft, thereby releasing a braking device. This preferably implement via a hexagonal shaft, can allow a simple and reliable mechanical implementation of the braking device.

According to another aspect of the present invention, the shaft is configured to interconnect at least two brake devices of two rollers spaced apart in the transverse direction. In this way, by the operation of a horizontal element equal two braking devices can be solved by the horizontal movement of the horizontal element is transmitted via the continuous shaft on both brake devices.

According to a further aspect of the present invention, the horizontal element is formed as a horizontal rail and flat on the frame, preferably disposed from the inside, fitting and / or the vertical element is formed as a vertical rail and flat on a vertical strut, preferably from the inside, fitting. Under a rail is a flat, elongated member to understand, which has a rectangular cross-section and extending flat adjacent parallel to the frame of the carriage or to a vertical strut of the car. Such a rail is preferably rigid and preferably formed of metal. By means of such a vertical rail or horizontal rail can be effected both in the vertical and in the horizontal direction, a force transmission in particular a pressure. This can be implemented mechanically simple and reliable. Also, a rail can be mechanically very easily performed, which can keep the implementation and in particular its costs low.

According to a further aspect of the present invention, the horizontal element and / or the vertical element are arranged movably by means of at least one sliding element, preferably by means of a plurality of sliding elements. This can allow a simple and reliable displaceability in the vertical or in the horizontal of the corresponding elements relative to the frame or a vertical strut. In particular, this can be implemented very easily mechanically, so that it is possible to dispense with moving parts at this point. This can not only simplify the mechanical implementation and / or make cost-effective, but it can also be implemented reliably and / or durable.

According to a further aspect of the present invention, the sliding element is formed from a plastic with a low coefficient of friction of its surface facing the horizontal element or the vertical element. As a result, the properties described above can be implemented in the simplest possible way and inexpensively. The sliding element may for this purpose have a corresponding surface, e.g. in the form of a coating or of a component or body. Preferably, the sliding element is integrally formed from a corresponding material, which can simplify the production and / or make it inexpensive.

According to a further aspect of the present invention, the carriage has a right horizontal element and a left horizontal element which are each horizontally movable and formed opposite to the frame, respectively to release at least one braking device, and the carriage comprises a right vertical element and a left vertical element, which are each at least substantially vertically movable and adapted to the frame, each to transmit the operation of the handle bar on the right horizontal element or on the left horizontal element, wherein the right vertical element and the left vertical element are further formed from the handle at least substantially to be moved vertically down and horizontally push away the right horizontal element or the left horizontal element. In this way, the properties and advantages described above can be implemented both on the left side of the car and on the right side of the car in order to achieve the most uniform possible power transmission to the braking devices. At the same time this can also be achieved fail-safe, if the movement mechanism of vertical element and horizontal element on one side of the frame should not be functional.

According to a further aspect of the present invention, the carriage has at least one vertical strut, which is arranged at least substantially vertically on the frame and the Hand grip and the handle bracket accommodates such that the handle and the handle bar are arranged elevated relative to the frame. As a result, the handle and the handle bar, which are to be operated by at least one hand of the user, are raised relative to the frame, so that they can be gripped and operated by the user by hand easier and more comfortable.

According to a further aspect of the present invention, the pressing element of the horizontal element and / or the pressing element of the vertical element is designed as a pressure roller, preferably as a ball-bearing pressure roller. In this way it can be made possible for the spinning roller to be rotatable relative to the vertical element or relative to the horizontal element, so that the pressing movement of the vertical element can be transmitted in a rolling manner onto the inclined surface of the contact element of the horizontal element. In a reverse arrangement, accordingly, a pressing movement of a slanting element of a contact element of the vertical element can be transmitted in a rolling manner to a corresponding spinning roller of the horizontal element. In both cases, an operation of the mechanical mechanism can be made simpler than if two rigid elements were pressed against each other. Also, this wear on abrasion at the contact points between the vertical element and the horizontal element can be avoided or at least reduced. This can further simplify handling for the user, in particular with less power, and make use thereof more comfortable and convenient for the user.

According to a further aspect of the present invention, the handle bar is arranged at least substantially above the handle. In this way, the user can press with his palms with the entire force of his upper body from the top of the handle bar to move it to the handle down. As a result, the vertical pressing movement can be exerted downward at the same time on the handle bar, which can be transmitted to the horizontal element, as described above. This can allow a simple and intuitive operation of the operation of the braking devices for the user.

According to a further aspect of the present invention, the vertical element is arranged in the transverse direction at least in sections between a vertical strut, which connects the frame to the handle, and the handle. This can make it possible to guide the vertical element in height on the handle, so that the handle bar can be arranged above the handle. As a result, the advantages described above can be achieved.

According to a further aspect of the present invention, the handle is arranged by means of at least one handle attachment to the vertical strut. In this way, a direct attachment of the handle to at least one and preferably two vertical struts in the transverse direction can be avoided, so that a gap can be created in which a vertical element can run and be moved, as described above.

According to a further aspect of the present invention, at least one braking device is designed as a drum brake. A drum brake is understood to mean a braking device which acts by friction, in that the brake linings of the drum brake can act on a cylindrical surface, which is referred to as a drum. Usually, when the brake is actuated, the brake lining is pressed against the revolving drum from the inside, and a rotational movement of the wheel is prevented by the friction occurring in this case. By using drum brakes as brake devices, a simple and effective braking device can be provided. In particular, this can also be designed such that it can be solved by a mechanical actuation as described above and otherwise acts fixed.

According to a further aspect of the present invention, the rollers facing away from the handle in the longitudinal direction are castors or castors and the rollers facing the handle in the longitudinal direction are castors. Under a caster is understood a non-pivotal role, which can perform rolling movements in one direction only. Under a castor is understood to be a fixed role, which is also freely rotatable about the vertical axis. Fixed castors, because of their rigid orientation, can usually be manufactured more cheaply than castors, so that their use can reduce the cost of the car. Castors are still advantageous because they allow the steering and thereby simplify the handling of such a car for the user. Combining the two types of rollers with each other is advantageous in order to allow steering and at the same time to achieve this with the lowest possible cost. This can be achieved, in particular, when castors on the side facing away from the handle in the longitudinal direction of the carriage, which can also be referred to as the front of the car, and castors on the side facing the handle in the longitudinal direction of the car, which also as the rear side of the Car can be used to be applied.

In accordance with a further aspect of the present invention, at least one steering roller, preferably all the steering rollers, have a directional lock. Under a directional lock is a mechanical device to understand, which allow by their operation the rotation of the steering roller and can prevent the rotation of the steering role by their release. This can be done for example by an engagement of a locking pin of the directional lock in a corresponding recess of the steering role, so that a lateral movement of the steering wheel can be prevented relative to the directional lock and released by canceling the engagement. This can set the steering roller in particular to an orientation in the direction of movement of the carriage, so that the steering roller then act as a castor. Such directional lock can be provided as part of a steering role, so that a steering role procured with directional lock and can be applied. This can reduce the effort of implementing the function of a direction detector to provide a way for the user to operate and resolve the directional lock.

According to a further aspect of the present invention, the directional lock is configured to be directly or indirectly actuated and / or released by a user with one foot by means of an actuating element. By means of such an actuating element, the user can be provided with the previously mentioned possibility to actuate and release the directional lock. The actuating element can thereby be actuated by the user for direct operation with the foot and / or detachably provided and arranged, e.g. by means of a foot lever as an actuating element on the user-facing side of the directional lock, which can allow a space-saving arrangement. Also, the user can operate the directional lock and / or solve without having to use the hands, so that the user can simultaneously run and operate the car with the slopes while the directional lock is operated with one foot. This can allow safe handling of the cart during operation of the directional lock. Also, the operation of a directional detector of a steering roller for a user can be intuitively possible. As a result, in particular castors can be operated, which are arranged facing the user on the car. These may be in particular rear castors of a car.

According to a further aspect of the present invention, the carriage has a linkage, which connects an actuating element, which is arranged to be reachable by a user's foot, with at least one directional fastener of a steering rollers facing away from the handle in the longitudinal direction, so that the directional locking device by means of the actuating element can be operated indirectly. This may allow a transmission of an operation of the operating member with a foot of the user, so that the user also the directional lock a castor, e.g. a front castor, reach and operate, which can not be reached directly with the foot. To realize this via a linkage, the transmission of tensile and compressive forces allow, so that with the linkage both an actuation and a release of the directional lock can be done.

According to a further aspect of the present invention, a right-hand directional locking device can be actuated and / or released by means of a right-hand linkage and a left-directional locking device by means of a left-hand linkage via a common actuating element. At least one linkage can for this purpose be designed and arranged diagonally to be able to reach from a common starting point of the actuating element of one of the two directional lock can. This may allow the user to operate and / or release both directional fixers together and simultaneously with a single operation. This can simplify the user's operation and / or increase the operating safety of the car.

According to a further aspect of the present invention, the carriage has a horizontal element, which is arranged in the longitudinal direction movable on the frame, preferably on a longitudinal strut of the frame, and connected to one with the linkage and the other with the actuating element. By means of this horizontal element, which can preferably be arranged movably on the frame by means of a sliding element as described above, a movement or force transmission from the linkage to the actuating element can take place, so that it can be operated indirectly via the horizontal element comparable to a foot of a user , This can allow indirect operation without having to change the actuator or with only minimal changes of the actuator. This can keep the cost of implementing this indirect operation low.

• 1 eine perspektivische schematische Darstellung eines erfindungsgemäßen Wagens als Handwagen von schräg oben von hinten;
• 2 einen Ausschnitt der 1;
• 3. den Wagen der 1 als Längsschnitt von der Seite;
• 4 einen Ausschnitt der 3;
• 5 eine perspektivische schematische Darstellung eines Gleitelements, und
• 6 einen weiteren Ausschnitt der 1.

An embodiment and further advantages of the invention are explained below in connection with the following figures. It shows:

• 1 a perspective schematic representation of a carriage according to the invention as a trolley from obliquely above from behind;
• 2 a section of the 1 ;
• 3 , the car of 1 as a longitudinal section from the side;
• 4 a section of the 3 ;
• 5 a perspective schematic representation of a sliding element, and
• 6 another section of the 1 ,

The above figures are considered in Cartesian coordinates. It extends a longitudinal direction X , which also as depth X can be designated. Perpendicular to the longitudinal direction X extends a transverse direction Y , which also as width Y can be designated. Perpendicular to both the longitudinal direction X as well as to the transverse direction Y extends a vertical direction Z , which also as height Z can be designated.

1 shows a perspective schematic representation of a carriage according to the invention 1 as a handcart 1 from diagonally above from behind. 2 shows a section B of the 1 , 3 shows the car 1 of the 1 as a longitudinal section from the side. 4 shows a section C of the 3 , 5 shows a perspective schematic representation of a sliding element 29 , 6 shows another section D of the 1 , The handcart 1 Can also be used as a trolley 1 be designated. The handcart 1 can by a user by sliding in one direction of movement A to be moved.

As in the 1 and 3 as a general view of the handcart 1 can be seen, the handcart points 1 a frame 10 on which also as a frame 10 can be designated. The frame 10 is horizontally aligned and has a right-hand longitudinal strut 10a , a left longitudinal strut 10b , an outer rear crossbar 10c , an inner rear crossbar 10d , an outer front cross member 10e and an inner front cross brace 10f on. The two longitudinal struts 10a . 10b extend in the longitudinal direction X , The four cross struts 10c . 10d . 10e . 10f extend in the transverse direction Y between the two longitudinal struts 10a . 10b , The two rear cross struts 10c . 10d are also arranged in pairs and parallel to each other as the two front cross struts 10e . 10f , The longitudinal struts 10a . 10b as well as the cross struts 10c . 10d . 10e . 10f are each designed as extruded aluminum, so that by the use of aluminum a stable and at the same time as lightweight as possible 10 can be created. The use of extruded profiles can simplify the manufacture, since these can have T-shaped grooves, via which they can be easily, flexibly and quickly connected with each other and with other elements. The longitudinal struts 10a . 10b consist of two extruded aluminum profiles, which have the same edge lengths in width as the cross struts 10c . 10d . 10e . 10f own, however, in the height Z are twice as high.

At the two front cross struts 10e . 10f are two swivel castors 11a as front rollers 11a arranged, which could be used at this point also fixed castors, which are fixed in the direction of movement A to be aligned. At the two rear cross struts 10c . 10d are two swivel castors 11b as rear rollers 11b arranged. The two castors 11b are rotatable about their respective vertical axis, allowing a steering of the trolley 1 can be enabled.

In the longitudinal direction X at the rear ends of the two longitudinal struts 10a . 10b is in each case a vertical strut 12a . 12b arranged, which accordingly as a right vertical strut 12a and as a left vertical strut 12b can be designated. The two vertical struts 12a . 12b extend in height Z from the two longitudinal struts 10a . 10b path. At their upper ends are the two vertical struts 12a . 12b through a horizontal connecting strut 12c connected with each other. The connecting strut 12c runs horizontally in the transverse direction Y , The vertical struts 12a . 12b consist of the same extruded aluminum profile as the longitudinal struts 10a . 10b of the frame 10 , The connecting strut 12c consists of the same extruded aluminum profile as the cross braces 10c . 10d . 10e . 10f ,

Just below the connecting strut 12c is a handle 13 arranged, which also horizontal and parallel to the connecting strut 12c runs. The handle 13 is at both ends of each of a handle attachment 14 on the respective inside of the right vertical strut 12a or the left vertical strut 12b kept stationary. This allows in the transverse direction Y on both sides a distance between the handle 13 and the respective inner side of the vertical strut 12a respectively. 12b be created, as will be explained in more detail below.

The four roles 11a . 11b each have a braking device 20 in the form of a drum brake 20 on. The drum brakes 20 are each designed as dead man's brake to grab in an unactuated state and unfold their braking effect. In other words, the drum brakes 20 each be actuated or ventilated so that the rollers 11a . 11b can be moved. Pressing or releasing the drum brakes 20 takes place such that a front hexagonal shaft 21a is present, which the two steering rollers 11a in the transverse direction Y connects with each other. Corresponding is also a rear hexagonal shaft 21b provided which the two castors 11b in the transverse direction Y connects with each other. The both hexagonal shafts 21a . 21b are each with the drum brakes 20 connected such that by a rotation of the hexagonal shafts 21a . 21b around their respective axis of rotation, the two drum brakes 20 be released or actuated.

A corresponding rotational movement can in each case via an actuating lever 22 per drum brake 20 on the hexagonal shafts 21a . 21b be exercised. The four operating levers 22 are in an unactuated or unventilated position of the hex shafts 21a . 21b in height Z vertically from above on the hexagonal shafts 21a . 21b at their ends in the transverse direction Y arranged. Between the respective operating lever 22 and the inside of the corresponding longitudinal strut 10a . 10b in each case runs a right horizontal element 24a in the form of a right horizontal rail 24a or a left horizontal element 24b in the form of a left horizontal rail 24b , The two horizontal rails 24a . 24b are each formed as a rigid, rectilinear, rectangular flat elements, which are parallel to the respective longitudinal strut 10a . 10b over almost its entire length in the longitudinal direction X extend.

The two horizontal rails 24a . 24b are each about two sliding elements 29 in the longitudinal direction X movable on the inside of the respective longitudinal strut 10a . 10b held, see for example 1 , This also applies to the two vertical elements 27a . 27b , which each have two sliding elements 29 in height Z movable on the inside of the respective vertical struts 12a . 12b be held, see also eg 1 , The sliding elements 29 can also be used as a glider 29 be designated and are each formed of a plastic, which has a comparatively low coefficient of friction of its surface.

Like in the 5 as an example for the left vertical element 27b is shown, is each sliding element 29 such with a holding element 29a provided that a positive connection with a corresponding recess of the extruded profile of the respective vertical strut 12a . 12b in the longitudinal direction X as well as in the transverse direction Y or with the respective longitudinal strut 10a . 10b in height Z as well as in the transverse direction Y can be achieved while in height Z or in the longitudinal direction X a mobility is enabled. Therefore, the retaining element 29a also as positive locking element 29a or as a T-profile 29a be designated. This can be a relative mobility of the two vertical elements 27a . 27b including sliding elements 29 opposite the respective vertical strut 12a . 12b in height Z or the two horizontal rails 24a . 24b including sliding elements 29 opposite the respective longitudinal strut 10a . 10b in the longitudinal direction X and at the same time enable a secure hold in the other spatial directions.

The two horizontal rails 24a . 24b each have two horizontal actuators 23 in the form of horizontal ball-bearing pressure rollers 23 on, which are each positioned where the operating lever 22 the hexagonal shafts 21a . 21b in height Z extend. More specifically, the horizontal ball-bearing spinning rollers 23 in the longitudinal direction X behind the unactuated or unventilated operating levers 22 positioned. Will thus be a horizontal rail 24a . 24b in the longitudinal direction X moved forward, so are the corresponding operating lever 22 through the horizontal ball-bearing pressure rollers 23 pushed forward diagonally downwards, whereby the respective hexagonal shaft 21a . 21b is rotated by a corresponding angle. By this rotary motion of the hexagonal shaft 21a . 21b will be the appropriate drum brake 20 operated or ventilated, so that the braking effect of this drum brake 20 lifted and the handcart 1 can be moved by the user.

The actuation of the two horizontal rails 24a . 24b via a right vertical element 27a as right vertical rail 27a and a left vertical element 27b in the form of a left vertical rail 27b , The two vertical rails 27a . 27b are corresponding to the two horizontal rails 24a . 24b by two sliding elements 29a on the respective inside of the right vertical strut 12a or the left vertical strut 12b in height Z movably mounted. Here are the two vertical rails 27a . 27b between the handle 13 and the right vertical strut 12a or the left vertical strut 12b in height Z passed them. Above the handle 13 are the two vertical rails 27a . 27b through a horizontal handle 28 in the transverse direction Y connected with each other. The handlebar 28 is so above the handle 13 and arranged parallel to this, that the handlebar 28 by a user can be grasped with the inner surfaces of the two hands and that at the same time the fingers of the user's hands the handle 13 can embrace. In this way, the handlebar 28 from a user to the handle 13 pressed down and both the handle 28 as well as the handle 13 can be simultaneously gripped close to each other with both hands of the user. The here in the height Z vertically downward pressure exerted by the user on the handle 28 is over the two vertical rails 27a . 27b in height Z down to the two horizontal rails 24a . 24b which thereby translate in the longitudinal direction X forward in the direction of movement A to be moved. This will cause the drum brakes 20 solved as previously described.

For transmitting the vertical pressure movement of the two vertical rails 27a . 27b in a horizontal movement of the two horizontal rails 24a . 24b is on the side of the horizontal rails 24a . 24b in each case a horizontal contact element 25 intended. The horizontal contact element 25 has an inclined surface 25a which is oriented at an angle of approximately 45 ° to the horizontal or to the vertical. The vertical rails 27a . 27b each have a vertical actuator in the region of their lower end 26 in the form of a vertical ball-bearing pressure roller 26 on. The vertical ball-bearing pressure roller 26 is each in the transverse direction Y positioned so that contact with the inclined surface 25a the corresponding horizontal contact element 25 can take place. Thus become the two vertical rails 27a . 27b from a user in height Z pressed down, so touch the two vertical ball bearing pressure rollers 26 the respective inclined surface 25a the corresponding horizontal contact element 25 and roll on the corresponding slanted surface 25a while they are the horizontal contact element 25 including the corresponding horizontal rail 24a . 24b in the longitudinal direction X push forward. The rolling power transmission via the two vertical ball-bearing pressure rollers 26 can simplify the transmission of power to the user and require less power to the two horizontal rails 24a . 24b through the corresponding vertical rails 27a . 27b push away. The avoidance of a frictional force transmission can simultaneously avoid wear or abrasion at this point.

To allow a user to influence the timing when during the vertical movement of the two vertical rails 27a . 27b their vertical ball bearing pressure rollers 26 with the inclined surfaces 25a the horizontal contact elements 25 come into contact, is a change in the positioning of the horizontal contact elements 25 in the longitudinal direction X intended. For this purpose, each horizontal contact element 25 several horizontally extending fastener receptacles 25c in the form of horizontal oblong holes 25c on, through which fastening means 25b in the form of screws 25b be guided. The screws 25b be in corresponding threads of the horizontal rails 24a . 24b recorded (not shown). By loosening the screws 25b can be a horizontal displacement of the corresponding horizontal contact element 25 opposite the horizontal rail 24a . 24b be allowed, so that their position in the longitudinal direction X can be determined. Once this position is taken, this position can be achieved by tightening the screws 25b be fixed so that the screws 25b in the transverse direction Y on the horizontal contact elements 25 Press and this can hold it by force.

The handcart 1 also has its four castors 11a . 11b in each case a directional lock (not shown), which is an integral part of the respective steering role 11a . 11b is. The directional lock serves to the rotation of the respective steering role 11a . 11b prevent and the steering role 11a . 11b with it on the direction of movement A determine when the castor 11a . 11b in the direction of movement A shows. This can be done in that takes place in a dissolved directional lock in mechanical engagement, which blocks the rotation, and in an actuated direction lock this mechanical engagement is not present, so that the rotation is possible.

Each directional lock has a Richtungsfeststellerbetätigung this 30 which is arranged lever-like towards the user, so that the Richtungsfeststellerbetätigungen 30 can be operated by pressing down by a locking pin of the directional retracts against a spring and so the wheel of the respective steering role 11a . 11b releases. By pressing the direction detector actuators 30 Upwards can be the direction detector actuations 30 Be activated by releasing the user by the springs, the locking bolts to a locking ring of the wheel of the respective steering role 11a . 11b Press and the locking pin can engage as soon as the wheel in the direction of movement A shows.

To the operation of a directional lock 30 To simplify for the user, have all castors 11a . 11b actuators 31 on, see eg 1 which are user-reachable by the user and depressing the user's foot on the direction detector actuations 30 can transfer. Here are the actuators 31 the two rear castors 11b directly with in each case a Richtungsfeststellerbetätigung 30 connected, so that a press down with the user's foot can be transferred directly to the respective directional lock, see, for example 1 ,

The directional lock of the front castors 11a can not be reached directly by the user as they are too far in the longitudinal direction X spaced from the user when this is the handcart 1 leads. Therefore, an indirect actuation of the directional lock the front castors 11a be allowed by that at the top of the outer cross strut 10c of the frame 10 in the transverse direction Y centrally a common actuator 31 is arranged, which the pressing down or pushing up with the foot of the user as a rotational movement in a translational push or pull movement of two linkages 32a . 32b can transfer.

The two linkages 32a . 32b run from the actuator 31 diagonally to each one of the front castors 11a each end and end on a horizontal element 33a . 33b , see eg 1 , Every horizontal element 33a . 33b has a sliding element 29 as described above, with which the horizontal element 33a . 33b is fixedly connected. The sliding elements 29 each engage in T-shaped grooves of a directional lock actuator mounting bracket 15a . 15b a, see for example 3 and 6 , which are parallel to each other in the transverse direction Y inside running on the two longitudinal struts 10a . 10b are arranged of the frame and from the same extruded aluminum, such as the cross braces 10c . 10d . 10e . 10f of the frame 10 exist, but comparatively short in the longitudinal direction X are executed. The two directional lock actuator mounts 15a . 15b each with their in the longitudinal direction X or in the direction of movement A front end to the inner side surface of the inner, front cross member 10 f, see eg 6 ,

The two horizontal elements 33a . 33b are thus above their respective sliding element 29 in the longitudinal direction X opposite the respective direction detector media holder 15a . 15b movable, so that the push or pull movement of the respective linkage 32a . 32b over the two horizontal elements 33a . 33b each on the Richtungsfeststellerbetätigung 30 one of the front castors 11a can be transferred. The two horizontal elements 33a . 33b each have a mechanical coupling to the respective Richtungsfeststellerbetätigung 30 on, allowing a pulling motion of one of the linkages 32a . 32b in the longitudinal direction X from the front castors 11a away in a pivotal movement of one of the direction detector actuations 30 can be converted. More specifically, the horizontal elements 33a . 33b formed as sheet metal parts and each have a fastening tab for the respective linkage 32a . 32b and another fastening tab for the directional locking actuator locking pin 30 on. An opposite movement is carried out by the springs on the locking pin.

In other words, at the back of the cart 1 the middle actuator 31 stepped down from the foot of the user, so pull the two poles 32a . 32b as diagonal bars 32a . 32b simultaneously on both sides of the respective horizontal element 33a . 33b , so by the same element 29 respectively the tensile force in a pure movement in the longitudinal direction X is deflected and so retracts the locking pin of the directional lock against the spring and so the wheel of the steering roller 11a . 11b releases. Will the actuator 31 detached from the foot of the user, the springs press the locking pin to a locking ring of the wheel and the locking pin can engage as soon as the wheel in the orientation of the direction of movement A stands. In this way, it is possible to actuate and release the direction detector actuations 30 the front castors 11a . 11b done indirectly by the user.

By the above-described features and advantages, a carriage 1 and in particular a handcart 1 or a trolley 1 be created, which can enable safe and easy operation for the user. At the same time, they can be used to release the drum brakes 20 required forces in a relatively safe, reliable and mechanically simple way of a handle 28 by the user on the drum brakes 20 be transferred to the handcart 1 to be able to move. The transmission of compressive forces used by the two vertical rails 27a . 27b on the two horizontal rails 24a . 24b can be mechanically robust and stable and yet easy and inexpensive. Also, the course of the vertical rails 27a . 27b as well as the horizontal rails 24a . 24b flat and close fitting to the insides of the two longitudinal struts 10a . 10b as well as on the two vertical struts 12a . 12b enable a safe and robust operation of the mechanical power transmission mechanism while protecting the user and the environment in general from the moving elements. Also, a loosening of screws of a linkage for transport can be avoided, as may be required so far, since the power transmission mechanism according to the invention can dispense with such a linkage. Furthermore, the use of directional detectors on all four castors 11a . 11b possible.

LIST OF REFERENCE NUMBERS

A

movement direction

B

Detail of the 1

C

Detail of the 3

D

another section of the 1

X

Longitudinal direction; depth

Y

Transverse direction; width

Z

vertical direction; height

1

Dare; Handcart; trolley

10

Frame; frame

10a

right longitudinal strut

10b

left longitudinal strut

10c

outer rear crossbar

10d

inner rear cross brace

10e

outer front cross brace

10f

inner front cross brace

11a

(front) castors

11b

(rear) castors

12a

right vertical strut

12b

left vertical strut

12c

connecting strut

13

handle

14

Handle mounting

15a

right directional locking actuator holder

15b

left directional locking actuator holder

20

Brakes: Drum brakes

21a

front (hex) shaft

21b

rear (hex) shaft

22

actuating lever

23

horizontal actuators; horizontal (ball-bearing) spinning rollers

24a

right horizontal element; right horizontal rail

24b

left horizontal element; left horizontal rail

25

(horizontal) contact elements

25a

Inclined surface of a (horizontal) contact element 25th

25b

Fastening means; screw

25c

Mounting borrowings; horizontal slots

26

vertical actuators; vertical (ball-bearing) spinning rollers

27a

right vertical element; right vertical rail

27b

left vertical element; left vertical rail

28

handlebar

29

Sliding elements; skid

29a

Holding member; Form-fitting element; T profile

30

Directional lock operations

31

actuators

32a

right linkage; right diagonal bar

32b

left linkage; left diagonal bar

33a

right horizontal element

33b

left horizontal element

QUOTES INCLUDE IN THE DESCRIPTION

This list of the documents listed by the applicant has been generated automatically and is included solely for the better information of the reader. The list is not part of the German patent or utility model application. The DPMA assumes no liability for any errors or omissions.

Cited patent literature

• DE 202007009242 U1 [0005, 0006, 0007, 0012, 0016]
• DE 202011050838 U1 [0005, 0011, 0012, 0016]

Claims (27)

Carriage (1), preferably handcart (1), for transporting fire-brigade, rescue and / or civil protection equipment, comprising a frame (10) which is at least substantially horizontally oriented and adapted to receive the equipment with on the frame (10) arranged rollers (11a, 11b), wherein at least one roller (11a; 11b) at least one braking device (20), with at least one horizontal element (24a, 24b) which is horizontally movable and formed with respect to the frame (10) to release at least one braking device (20), comprising a handle (13) adapted to be gripped by at least one hand of a user for guiding the carriage (1) with a handle (28) formed from the user's hand can be actuated when the user grips the handle (13), and with at least one vertical element (27a, 27b), which relative to the frame (10) moves at least substantially vertically Lich and is formed, the operation of the handle bracket (28) on the horizontal element (24a; 24b), characterized in that the vertical member (27a; 27b) is further adapted to be moved downwardly from the handle bar (28) at least substantially vertically and to push the horizontal member (24a; 24b) horizontally. Carriage (1) to Claim 1 , characterized in that the vertical element (27a; 27b) and the horizontal element (24a; 24b) are unconnected. Carriage (1) to Claim 1 or 2 characterized in that the horizontal element (24a, 24b) has a contact element (25) with an oblique surface (25a), and in that the vertical element (27; 27b) has a pushing element (26) which is designed to form the oblique surface (25a) horizontally push away the horizontal element (24a, 24b), or vice versa. Carriage (1) to Claim 3 , characterized in that the contact element (25) and the pressing element (26) in the transverse direction (Y), preferably the center facing, relative to the horizontal element (24a, 24b) and with respect to the vertical element (27a, 27b) are arranged offset. Carriage (1) to Claim 3 or 4 , characterized in that the contact element (25) is vertically and / or horizontally displaceable relative to the horizontal element (24a; 24b) or relative to the vertical element (27a; 27b), so that the position of the contact between the inclined surface (25a) of the contact element (25) and the horizontal element (24a, 24b) or the vertical element (27a, 27b) is variable. Carriage (1) to Claim 5 , characterized in that the contact element (25) has at least one fastening means receptacle (25c) which is designed to receive a fastening means (25b) such that the contact element (25) can be displaced vertically and / or horizontally on the horizontal element (24a; 24b) or on the vertical element (27a, 27b) can be arranged, wherein the fastener receiving means (25c) is preferably a slot (25c) and the fastening means (25b) is preferably a screw (25b). Carriage (1) after one of Claims 3 to 6 , characterized in that the contact element (25) is rotatable relative to the horizontal element (24a, 24b) or relative to the vertical element (27a, 27b), so that the angle of contact between the inclined surface (25a) of the contact element (25). and the horizontal element (24a, 24b) or the vertical element (27a, 27b) is variable. Carriage (1) according to one of the preceding claims, characterized in that the braking device (20) has at least one actuating lever (22) which is designed to be pressed and thereby to release the braking device (20), wherein the horizontal element (24; 24b) has a pushing element (26) which is designed to press the actuating lever (22) of the braking device (24a, 24b) horizontally. Carriage (1) to Claim 8 characterized in that the operating lever (22) is disposed on a shaft (21a; 21b), preferably on a hexagonal shaft (21a, 21b) of the braking device (20), the braking device (20) being formed by pressing the Actuating lever (22) as a rotational movement of the shaft (21a, 21b) to be solved. Carriage (1) to Claim 9 , characterized in that the shaft (21a, 21b) is adapted to connect at least two braking devices (20) of two in the transverse direction (Y) spaced rollers (11a, 11b) with each other. Carriage (1) according to one of the preceding claims, characterized in that the horizontal element (24a; 24b) is formed as a horizontal rail (24a; 24b) and flat against the frame (10), preferably disposed from inside, and / or the vertical element (27a; 27b) is designed as a vertical rail (27a; 27b) and is arranged flat against a vertical strut (12a; 12b), preferably from the inside. Carriage (1) according to one of the preceding claims, characterized in that the horizontal element (24a; 24b) and / or the vertical element (27a; 27b) are movable by means of at least one sliding element (29), preferably by means of a plurality of sliding elements (29) are arranged. Carriage (1) to Claim 12 , characterized in that the sliding element (29) is formed from a plastic with a low coefficient of friction of its surface facing the horizontal element (24a, 24b) or the vertical element (27a, 27b). Carriage (1) according to one of the preceding claims, characterized by a right horizontal element (24a) and a left horizontal element (24b) which are horizontally movable and designed in each case opposite the frame (10), in each case releasing at least one braking device (20), and by a right vertical element (27a) and a left vertical element (27b), each of which relative to the frame (10) at least substantially vertically movable and formed, respectively the operation of the handle bracket (28) on the right horizontal element (24a) and to be transferred to the left horizontal element (24b), wherein the right vertical element (27a) and the left vertical element (27b) are further adapted to be moved downwardly at least substantially vertically by the handle bar (28) and the right horizontal element (24a) or to push the left horizontal element (24b) away horizontally. Carriage (1) according to one of the preceding claims, characterized by at least one vertical strut (12a, 12b) which is arranged at least substantially vertically on the frame (10) and receives the handle (13) and the handle (28) in such a way that the handle (13) and the handle (28) are arranged elevated relative to the frame (10). Carriage (1) according to one of the preceding claims, characterized in that the pressing element (23) of the horizontal element (24a, 24b) and / or the pressing element (26) of the vertical element (27a, 27b) act as a pressure roller (23, 26), preferably as a ball-bearing pressure roller (23; 26) is formed / are. Carriage (1) according to one of the preceding claims, characterized in that the handle bar (28) is arranged at least substantially above the handle (13). Carriage (1) according to any one of the preceding claims, characterized in that the vertical element (27a; 27b) in the transverse direction (Y) at least in sections between a vertical strut (12a; 12b), which the frame (10) with the handle (13). connects, and the handle (13) is arranged. Carriage (1) to Claim 18 , characterized in that the handle (13) by means of at least one handle attachment (14) on the vertical strut (12a, 12b) is arranged. Carriage (1) according to one of the preceding claims, characterized by at least one connecting strut (12c), which is arranged above the handle bar (28) between a right vertical struts (12a) and a left vertical strut (12b). Carriage (1) according to one of the preceding claims, characterized in that at least one braking device (20) is designed as a drum brake (20). Carriage (1) according to one of the preceding claims, characterized in that in the longitudinal direction (X) the handle (13) facing away from rollers (11a) fixed rollers or castors (11a), and in the longitudinal direction (X) the handle ( 13) facing rollers (11 b) castors (11 b) are. Carriage (1) to Claim 22 , characterized in that at least one steering roller (11a, 11b), preferably all the steering rollers (11a, 11b), a directional lock (30). Carriage (1) to Claim 23 , characterized in that the directional lock (30) is adapted to be operated by means of an actuating element (31) by a user with a foot directly or indirectly and / or released. Carriage (1) to Claim 24 characterized by a linkage (32a; 32b) having an actuating element (31), which is arranged to be accessible to a user's foot, with at least one directional lock (30) of a steering roller (13) facing away from the handle (13) in the longitudinal direction (X). 11a) connects in such a way that the directional lock (30) can be actuated indirectly by means of the actuating element (31). Carriage (1) to Claim 25 , characterized in that a right directional lock (30) by means of a right linkage (32 a) and a left-directional lock (30) can be actuated and / or released by means of a left-hand linkage (32b) via a common actuating element (31). Carriage (1) to Claim 25 or 26 characterized by a horizontal element (33a; 33b), which in the longitudinal direction (X) is movably arranged on the frame (10), preferably on a longitudinal strut (10a; 10b) of the frame (10) and connected to the linkage (32a ; 32b) and on the other with the actuating element (31) is connected.

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