DE102020100634A1 - Fastening arrangement with a first fastening section, in particular for a mobile device, mobile device and method - Google Patents

Abstract

The invention relates to a fastening arrangement 1 with a first fastening section 2, with a fastening means 4, the first fastening section 2 having a base area 5 with an access opening 7a and with a form-fitting opening 7b, the fastening means 4 being able to be fed in via the access opening 7a and from the access opening 7a can be displaced into the form-fit opening 7b, the fastening means 4 being arranged in an assembly state in the form-fit opening 7b and secured against rotation by the form-fit opening 7b and secured in a support direction SR by the first fastening section 2, the first fastening section 2 providing a securing area 10 for Has securing of the fastening means 4, the securing area 10 being integrally connected to the base area 5, the securing area having an assembly part area 11a, the assembly part area 11a opposing the fastening means 4 in the assembled state Support direction SR secures. The invention also relates to a mobile device with the fastening arrangement 1 and a method for assembling the fastening arrangement 1 and / or the mobile device.

Description

The invention relates to a fastening arrangement with a first fastening section and with a fastening means having the features of the preamble of claim 1. The invention further relates to a mobile device with the fastening arrangement and a method for assembling the fastening arrangement.

In transport vehicles or non-motorized handcarts, rollers or wheels are attached to a sub-floor for moving the mobile device, the attachment of the rollers or wheels by means of a screw connection is generally known. Nevertheless, the attachment of rollers or wheels is a problem when it comes to the stability of the mobile device on the rollers or wheels or the attachment of the rollers to the mobile device is not automated, but is carried out by an assembly worker.

Thus, roller holders for mounting rollers or wheels, which can be attached to or underneath a container or detached from it, in particular for exchange purposes, without access to the inside of the container being necessary, are known.

The pamphlet EP 1 637 351 A1 , which probably forms the closest prior art, relates to a roller holder for mounting rollers or wheels on the underside of a mounting plate. The mounting plate can be part of a frame or an independent element which is arranged on the underside of the container to be carried by the roll. The roller holder comprises at least one bearing block which receives a roller and which can be detachably connected to the mounting plate. In the assembled state, the bearing block is attached to the underside of the mounting plate. For this purpose, at least two recesses, each cooperating in pairs, are provided in the bearing block and the mounting plate. In the mounted position of the bearing block on the mounting plate, a recess in the mounting plate is at least partially in alignment with a corresponding recess in the bearing block, so that a fastening element can be pushed through both openings together.

The invention is based on the object of creating a fastening arrangement which is characterized by simple assembly of the components and inexpensive manufacture. This object is achieved by a fastening arrangement with the features of claim 1, by a mobile device with the features of claim 14 and by a method for assembling the fastening arrangement and / or the mobile device with the features of claim 15.

The invention relates to a fastening arrangement, in particular for fastening a roller unit or another unit to a body of a mobile device. The mobile device is designed, for example, as a transport trolley, the transport trolley preferably being designed as a non-motorized transport vehicle. The transport trolley preferably has the body, in particular designed as a substructure and / or chassis, the fastening arrangement preferably being arranged on this. A roller unit is preferably connected to the substructure and / or to the chassis via the fastening arrangement. For example, the trolley has a loading area for transporting goods, the trolley preferably being designed as a tool trolley, a workshop trolley, an industrial truck, a hand trolley, a handcart, a table trolley, a platform trolley or a trolley. The transport trolley preferably has a structure which is placed on the substructure and / or chassis and is supported by the latter. The structure is preferably used to receive and subdivide goods, the transport vehicle with structure preferably being designed as a shelf trolley, as a shelf trolley or as a picking trolley. Alternatively, the mobile device can be designed as a chair, in particular as a desk chair or as an office chair. The fastening arrangement is not restricted to these applications, but can be used to connect any objects or components.

In principle, the transport vehicle can transport any types of goods, the transport vehicle preferably having at least or precisely one roller unit. The roller unit preferably has one or more rollers or wheels which are designed to be rotatable about an axis of rotation. The rollers or wheels are preferably made of an elastic material, in particular plastic and / or a rubber material, the rollers or wheels preferably being made of a solid material. The roller unit is preferably designed as a fixed roller unit or as a steering roller unit, these having one or more rollers or wheels. For example, the fixed or swivel castor unit has two castors connected to form a pair. The castor unit is designed to be rotatable and / or pivotable about a steering axis, the fixed castor unit not being designed to be pivotable and / or rigid. The transport trolley preferably has at least or precisely two roller units, these being single-track or multi-track on the substructure and / or chassis via the fastening arrangement are attached. In particular, the transport trolley has four roller units, these being arranged in two lanes. are the rollers or wheels as.

The fastening arrangement has a first fastening section. The first fastening section is preferably designed as a mounting base plate for fastening the roller unit, wherein the mounting base plate can be or is arranged on the transport trolley. The first fastening section is preferably arranged on a frame of the transport trolley and / or forms a section of the frame. The first fastening section is preferably designed as a formed part, in particular a formed sheet metal part, and / or made of a metallic material, for example steel or an alloy.

The first fastening section has a base area which is preferably designed for fastening a second fastening section. Optionally, the second fastening section forms part of the fastening arrangement. The base area is preferably designed as a surface section, the second fastening section preferably being able to be and / or arranged flat on the base area. The roller unit preferably has the second fastening section, the roller unit being designed for direct connection to the first fastening section. Alternatively, the second fastening section represents a connecting section for the indirect connection of the roller unit to the first fastening section. The fixed castor unit or the swivel castor unit particularly preferably has the second fastening section.

The fastening arrangement has a fastening means which is preferably designed for the detachable fastening of the two fastening sections. The fastening means is designed in particular for non-positive and / or positive connection of the first and second fastening sections. In principle, the fastening means can be designed as desired in its basic shape and in its fastening mechanism, the fastening means preferably being designed as a screw with a cylindrical base body, a screw head and a screw thread, the screw thread being connectable to a nut thread of a nut or another coupling element in a form-fitting manner is so that a screw connection is created.

The base area of the first fastening section has an access opening and a form-fitting opening, which is preferably designed as a common, continuous receiving opening. The access opening is preferably designed as a circular opening or as a circular sector opening, the access opening preferably being formed from the base area by cutting out material. The receiving opening can also be seen as an opening within the base area of the first fastening section.

The access opening serves to receive the fastening means, in particular for feeding the fastening means, preferably in one fastening direction. The fastening direction is preferably the direction in which the second fastening section is arranged and / or can be arranged during assembly on the first fastening section. For example, when assembling the fastening arrangement for the trolley, the roller unit is fastened to the first fastening section in the fastening direction perpendicular to the substructure and / or chassis of the trolley, with the latter being fastened on the side of the trolley facing away from the loading area and / or the superstructure. The access opening is preferably used to feed the screw head of the screw as a fastening means. In particular, the screw head lies on one side of the first fastening section, the screw thread being arranged on another side of the first fastening section.

The form-fit opening is designed for a form-fit connection with the fastening means, the fastening means being able to be fed in via the access opening and displaced from the access opening into the form-fitting opening. In particular, during assembly, the fastening means can be displaced from the access opening into the form-fit opening perpendicular to the fastening direction. The form-fit opening is connected to the access opening, wherein the form-fit opening preferably represents an alignment and / or a taper with respect to the access opening or is designed as such. The form-fit opening is designed for a form-fit connection to the fastening means, the form-fit opening having a form-fit contour or a basic shape which preferably enters into a form-fit connection with the fastening means to prevent rotation about the axis of rotation of the fastening means. For example, the form-fit opening is formed with at least or precisely one corner. The form-fit opening is preferably designed in its basic shape as a triangle, as a square or as a hexagon. The fastening means preferably has a form-fit counter-section as a counter-contour to the form-fit opening.

In an assembled state and / or final state of the fastening means, the fastening means is arranged in the form-fit opening and secured against rotation by the form-fit opening and secured in a support direction by the first fastening portion. In particular, in the assembled state and / or in the final state, the fastening means is non-rotatably connected to the positive-locking opening via the form-fit mating section, so that a first degree of freedom of the fastening means, a rotation about an axis of rotation, is restricted. The support direction in which the fastening means is supported on the first fastening section preferably runs counter to the fastening direction of the fastening means. The fastening means is preferably supported on the first fastening section via a support contour section. In the assembled state and / or in the final state, the support contour section preferably engages behind the first fastening section, so that further freedom of the fastening means in the support direction is restricted.

According to the invention, the first fastening section has a securing area for securing the fastening means. The securing area is preferably arranged within the form-fit opening. The security area is connected in one piece to the base area.

The securing area is preferably connected in one piece to the base area via a plastic connection, in particular via a so-called “microjoint connection”. Alternatively, the securing area is integrally connected to the base area via an elastic connection.

The securing area preferably protrudes from the base area into the interlocking opening, the securing area preferably overlapping the interlocking opening. In the assembled state and / or in the final state, the securing area secures the fastening means against the support direction. The securing area serves to secure the fastening means in the assembled state and / or in the final state, so that the fastening means is arranged in the form-fit opening, in particular, secured against loss. The assembly state is adopted during assembly, the final state is adopted after assembly.

Considered more precisely, the securing area has a sub-assembly area, the sub-assembly area securing the fastening means in the assembled state and / or in the final state against the support direction. The sub-assembly area is preferably arranged at a free end of the securing area. The fastening means is supported on the one hand on the first fastening section in the support direction and on the other hand against the support direction via the sub-assembly region on the securing region. In particular, the securing area or the sub-assembly area supports the fastening means in the fastening direction. In the assembled state and / or the final state, it can be provided that the fastening means is pretensioned by the assembly subarea against the first fastening section, the fastening means preferably being arranged in contact with the assembly subarea and the first fastening section. In particular, the fastening means, in particular the screw head, is clamped between the sub-assembly area and the first fastening section.

Alternatively, it can be provided in the assembled state and / or final state that the fastening means is arranged with an axial play in relation to the support direction between the sub-assembly area and the first fastening section, the fastening means preferably being arranged without contact between the sub-assembly area and the first fastening section with a tolerance. In the assembled state and / or in the final state, the fastening means is preferably arranged perpendicular to the base area. For example, the screw thread is oriented perpendicular to the base area and in the support direction for receiving the second fastening section. The second fastening section preferably has a connection opening, the fastening means, in particular the screw thread, extending through the connection opening for fastening the second fastening section.

It is advantageous that a fastening arrangement is created which, on the one hand, enables an assembler to easily access the fastening means to the first fastening section through the access opening, and, on the other hand, secures the fastening means in the assembled state and / in the final state through the securing area, so that the fastening arrangement and / or securing of the fastening means is guaranteed in the final state. It is also advantageous that the one-piece design of the securing area with the base area enables the fastening arrangement to be manufactured inexpensively.

In a preferred embodiment of the invention, the securing area and the base area are made in one piece from a common starting material. In particular, when the form-fit opening and the access opening are cut out, the securing area is formed by a residue of the common starting material with the base area. The first fastening section with the base area and the securing area is preferably made of a metallic material, in particular steel or an alloy. The first fastening section is preferably made from a metal sheet, in particular from a thin sheet. The first fastening section preferably has a material thickness of a few Millimeters, in particular of at least 1 mm, in particular of at least 1.5 mm, 3 mm or 4 mm. The first fastening section preferably has a maximum material thickness of several millimeters, in particular of a maximum of 5 mm, in particular of a maximum of 3 mm.

In a structural embodiment of the invention, the fastening means has a support contour section and a form-fitting counter-section. For example, the fastening means is designed as the screw, the screw head forming the support contour section and a square shoulder forming the interlocking counter section. The support contour section is preferably designed as a first stop surface, the first stop surface being formed in particular by an annular inner surface of the screw head. The form-fit counter-section is preferably connected to the support contour section, with the form-fit counter-section formed as a square shoulder preferably resting against the first stop surface and / or these being formed adjacent. The fastening means is particularly preferred as a carriage bolt and / or as a round head screw with a square neck, in particular as a standardized fastening means DIN 603 or according to equivalent standards, for example ISO 8677 , educated.

In the assembled state and / or the final state, the fastening means is supported via the support contour section on the first fastening section in the support direction. In particular, the support contour section is supported on an edge surface of the interlocking opening, the edge surface surrounding the interlocking section at least in sections. In particular, in the assembled state and / or in the final state, the first stop surface rests against the edge surface. Furthermore, in the assembled state and / or in the final state, the fastening means is positively connected to the form-fit opening via the form-fit counter-section.

In particular, the form-fit counter-section rests against a hole edge of the form-fit opening, these interlocking positively and connecting the fastening means to the first fastening section in a rotationally fixed manner.

In a preferred structural implementation of the invention it is provided that the form-fit opening and the access opening form a common receiving opening. The common receiving opening is arranged in the base area, the common receiving opening preferably being designed as an opening. The access opening is preferably designed as a circular opening or as a circular sector opening and the form-fitting opening as a taper, the access opening and the form-fitting opening being formed jointly by removing material from the base area.

The securing area is formed by a protrusion from the base area into the common receiving opening. The overhang preferably overlaps both parts of the common receiving opening, the overhang of the base area restricting the common receiving opening for securing the fastening means. The protrusion is preferably designed as a tab or a wing, the protrusion preferably being able to be designed and / or formed by cutting out the surrounding common receiving opening, for example by a laser cutting process or a punching process.

The securing area is preferably connected to the base area via the “microjoint connection” so that the overhang is connected in one piece to the base area via a narrow and flexible connection. The “microjoint connection” preferably has a connection cross-section of a few square millimeters to several tens of square millimeters and is manufactured and / or formed from the common starting material. The “microjoint connection”, or microjoints for short, is a thin web which, for example, remains between the securing area and the base area during manufacture. In particular, this is formed during laser cutting to hold the securing area on the base area. Furthermore, the microjoint can be used as a bendable and / or plastically deformable connection. The protrusion is preferably formed during assembly and / or in the assembled state and / or final state of the fastening means by feeding the fastening means into the access opening and / or by moving it into the form-fitting opening via the "microjoint connection", the protrusion towards the base area is angled. The overhang is preferably angled by less than 45 degrees, in particular less than 35 degrees, in particular less than 25 degrees, to the base area. Despite the reshaping of the protrusion and / or the safety area, it supports the fastening means against the support direction. The safety area is preferably reshaped only to the extent that the fastening means with the support contour section engages behind the first fastening section and is positively connected to the form-fitting opening via the form-fitting counter-section.

In a further structural embodiment of the invention it is provided that the securing area has a guide part area, the guide part area for guiding the fastening means, in particular for guiding the fastening means from the access opening into the Form-fitting opening is formed. The interlocking sub-area is connected to the assembly sub-area. The two partial areas of the securing area are connected to one another in one piece and are preferably made from a common starting material, for example sheet metal. For guiding the fastening means, the guiding sub-area preferably has a surface, the guiding sub-area being arranged within the access opening.

Furthermore, the securing area is designed in such a way that it overlaps the form-fit opening and the access opening. The securing area is preferably connected to the base area on the side of the access opening, the securing area with the guiding sub-area being arranged above the access opening and further protruding with the assembly sub-area into the positive-locking opening. Alternatively, the securing area is connected to the base area on the side of the form-fit opening and from there overlaps the access area. The securing area preferably protrudes from a hole edge of the receiving opening into the access opening and the form-fitting opening. Alternatively, the securing area is connected to the base area at a distance from the edge of the hole and extends outside the receiving opening into the access opening and the form-fitting opening. Due to the overlapping securing area, the fastening means is secured against the support direction when it is fed via the access opening and when it is shifted into the form-fitting opening, in particular by the guide sub-area. The guide sub-area preferably forms a stop for the fastening means, in particular for the screw head, so that the fastening means is secured in the access opening and displaced into the form-fitting opening counter to the support direction. It is advantageous that during the assembly of the fastening means it cannot fall through the access opening, and in the assembled state and / or final state the fastening means is additionally held in the support direction so that it is secured against loss, whereby the fastening means is held independently when the second fastening section is further assembled , so that a simplified assembly of the fastening arrangement is created.

In a preferred development of the invention, the securing area has a connection sub-area, the connection sub-area being connected in one piece to the base area. In particular, the connection sub-area forms the transition from the basic area to the security area. The connection sub-area is preferably made from the base material of the base area and is connected in one piece to the base area.

In one possible embodiment of the invention, the connection sub-area is designed as the microjoint connection, in particular a web connection, as has already been described above.

Alternatively, the connection part area is designed as a deformed part area. The deformed part area forms a deformed contour in the first fastening section. In its basic shape, the deformed contour is preferably designed as a fold and / or as a shoulder, the deformed part area being produced by a deforming process. The deformed part area is connected to the base area and to the securing area, the deformed part area connecting them in one piece. The securing area is preferably designed to be resilient, the securing area being elastically movable and / or swingable over the deformed part area. Preferably, the securing area is resiliently movable and / or swingable counter to the support direction, so that the assembly sub-area supports the fastening means elastically counter to the support direction when securing the fastening means.

In a further embodiment of the invention it is provided that the fastening arrangement has a plurality of securing areas. The fastening arrangement preferably has a plurality of fastening means, one of the securing areas in each case securing one of the fastening means. Each of the plurality of securing areas preferably has one of the assembly sub-areas which are designed to secure the respective fastening means in the assembled state and / or in the final state. The several security areas are integrally connected to the basic area. In particular, the securing areas and the base area are made from the same starting material, for example sheet metal or sheet steel. The multiple securing areas preferably each have one of the connection sub-areas for connection to the base area, the connection sub-areas particularly preferably being designed as a plastically deformable connection, for example as the microjoint connection. The securing areas preferably each have one of the guide subareas which connects the assembly subarea with the connection subarea, the securing area with the guide subarea preferably being arranged in the access opening and the assembly subarea in the form-fitting opening. For example, during the assembly of the fastening means, the securing areas are reshaped by them against the support direction, the connection subareas being reshaped, the guide subareas and the assembly subareas being designed in a ramp-shaped and / or angled manner to the base area, so that the form-fit openings are exposed and the fastening means are in the assembly state and / or final state can be relocated and / or are relocatable.

In one embodiment of the invention, it is provided that the plurality of securing areas are arranged with an X-shaped alignment to one another within the base area. An X-shaped alignment is to be understood as an arrangement of the securing areas in pairs along a straight line and / or a common alignment, the two straight lines and / or alignments in particular intersecting in the middle. The first fastening section preferably has exactly four securing areas, the securing areas being arranged in pairs along the two straight lines that cross one another. Particularly preferably, the four securing areas have four sub-assembly areas which are oriented outwardly along the straight lines. Each securing area is preferably assigned to a receiving opening, the access openings and the form-fitting openings being essentially aligned with the securing areas in an X-shape. Alternatively, the multiple securing areas are aligned in an H-shape so that they are arranged along two parallel lines.

In a further preferred embodiment of the invention it is provided that the securing area, in particular precisely one securing area, has a plurality of sub-assembly areas. The sub-assembly areas are each assigned to one of the form-fit openings, so that the one securing area has the multiple sub-assembly areas and the sub-assembly areas each secure one of the fastening means in the assembled state and / or in the final state against the support direction. It is advantageous that the multiple sub-assembly areas create a secure area which can secure multiple fastening means, so that a fastening arrangement is provided that is inexpensive to manufacture.

In one embodiment of the invention, it is provided that the securing area has several guide subareas, the guide subareas for guiding the respective fastening means being connected to the assembly subarea. As a result, the guide subareas and the assembly subareas each extend in pairs on the one securing area, the securing area having a connecting subarea, in particular precisely one connecting subarea. The connection sub-area is connected to the base area, these being formed in one piece. The connection subarea connects the securing area in one piece with the base area, the multiple assembly subareas being connected to the connection subarea via the respective guide subareas. The connection sub-area of the securing area is preferably arranged centrally on the base area, the base area having several access and form-fit openings all around and / or surrounding it, and the assembly sub-areas with the guide sub-areas overlapping the access and form-fit openings starting from the common connection sub-area. The one connection sub-area is preferably designed as the deformed sub-area, the guide sub-areas and the assembly sub-areas being designed to be elastically resilient and in one piece with the base area over the one deformed sub-area.

In a preferred structural embodiment of the invention, it is provided that the securing area has four sub-assembly areas, the sub-assembly areas being arranged in an H-shape and / or having an H-shaped alignment of the sub-assembly areas. The four sub-assembly areas are formed along two straight lines, two sub-assembly areas each being embodied oriented in a common direction, the other two sub-assembly areas being embodied as oriented in an opposite direction. As described above, the first fastening section has one securing area with one connection subarea, the assembly subareas preferably being connected to the connection subarea via four guide subareas, this being H-shaped together with the connection subarea and these projecting in the two opposite directions so that these overlap the access and interlocking openings. The connection part area is particularly preferably designed as the deformed part area, with two assembly part areas being designed to be elastically resilient so that, for example, when one assembly part area is bent counter to the support direction, the other assembly part area is moved in the support direction. As a result, the assembly subregions in the assembled state and / or the final state of the fastening means are mutually pretensioned.

In an alternative embodiment of the invention, it is provided that the securing area has the four sub-assembly areas, the sub-assembly areas being arranged in an X-shape and / or having an X-shaped alignment. As an alternative to the H-shaped alignment of the sub-assembly areas, it is provided that the four sub-assembly areas are arranged along two straight lines and / or alignments, which intersect in particular in the middle. The securing area has the connection sub-area, the connection sub-area being arranged in the center of the assembly sub-areas, the assembly sub-areas spreading in an X-shape from the connection sub-area in four different directions. The securing area preferably has four guide sub-areas, which connects the assembly subareas with the connection subarea. In particular, the assembly subareas and the guide subareas are resiliently connected to the base area via the connection subarea, each pair of assembly and guide subareas being elastically deformable independently of one another, in particular against the support direction. For example, in the assembled state and / or in the final state, the fastening means are arranged in a touching manner on the first fastening section and on the sub-assembly area, the fastening means being tensioned in the support direction against the first fastening section via the resilient securing area. It is advantageous that the individual assembly subregions are decoupled from one another when springing, so that a constant spring force acts on the fastening means during assembly. It is further advantageous that the fastening means are displaced in four different directions due to the X-shaped alignment for transferring them to the assembled state and / or the final state, so that a more captive fastening arrangement is created.

Another object of the invention is a mobile device with a body, for example designed as a transport container or as a transport platform, and with at least one roller unit, preferably with one or more rollers or wheels, and with the fastening arrangement as described above. The mobile device, preferably designed as a workshop and / or tool trolley, preferably has at least or exactly four roller units, the rollers or wheels being designed to be rotatable, so that the preferably non-motorized mobile device is designed to be movable via the roller units. It is further provided that the roller unit is fastened and / or can be fastened to the body via the fastening arrangement. In particular, the roller unit has the second fastening section, the first fastening section being arranged on the body of the mobile device. The first fastening section is connected, for example, to the body or to a substructure or to a chassis of the mobile device, the first fastening section being connected to the mobile device, for example, by a screw connection and / or a welded connection. The first fastening section preferably has a plurality of base areas with the access openings and the form-fitting openings and one or more securing areas.

The second fastening section is designed, for example, as a plate-shaped receptacle for the roller unit and can be arranged on the base area of the first fastening section. The fastening arrangement has a plurality of fastening means, these preferably being designed as carriage bolts and / or truss-head bolts with a square neck. The second fastening section preferably has connection openings for connection to the fastening means. The second fastening section can be connected to the first fastening section via the fastening means, the fastening means being secured by the securing areas during the assembly of the two fastening sections, so that the roller units can be mechanically connected to the mobile device via the fastening arrangement.

The invention also relates to a method for assembling the fastening arrangement and / or the mobile device as described above. In an assembly step, the fastening means is transferred to the assembly state, wherein in the assembly state and / or the end state of the fastening means, the assembly sub-area secures the fastening means against the support direction.

When assembling the roller units on the mobile device, in the assembly step the fastening means are preferably fed via the access openings to the base areas perpendicularly against the support direction and, for transferring into the assembly state, are displaced perpendicular to the support direction into the form-fit opening. The fastening means are preferably guided through the guide subregions when they are transferred into the assembly state. In the assembled state, the fastening means are secured by the sub-assembly areas against the support direction, so that in the assembly step all fastening means are initially connected to the first fastening section in a rotationally fixed manner.

In a subsequent or later assembly step, provision is preferably made for the roller units with the second fastening section to be arranged on the base areas with the rotationally secured fastening means, the fastening means being guided through the connecting openings of the second fastening section and connected to a coupling element, preferably a nut, for fastening and secured so that the fastening arrangement assumes a final state, in particular final assembly state with the roller units.

• 1 eine schematische Darstellung einer Befestigungsanordnung in einer Draufsicht als ein erstes Ausführungsbeispiel;
• 2a einen Ausschnitt der Befestigungsanordnung aus 1 in einer perspektivischen Ansicht mit einem ersten Befestigungsabschnitt mit einem Sicherungsbereich;
• 2b einen Ausschnitt der Befestigungsanordnung mit einem Anbindungsteilbereich als ein weiteres Ausführungsbeispiel;
• 3 eine Vorderansicht eines Befestigungsmittel der Befestigungsanordnung;
• 4 eine perspektivische Ansicht der Befestigungsanordnung und mit einer Rolleneinheit als ein weiteres Ausführungsbeispiel;
• 5 eine perspektivische Ansicht der Befestigungsanordnung mit der Rolleneinheit und dem Sicherungsbereich als ein Ausführungsbeispiel.

Further features, advantages and effects of the invention emerge from the following description of preferred exemplary embodiments of the invention. Show:

• 1 a schematic representation of a fastening arrangement in a plan view as a first embodiment;
• 2a a section of the mounting arrangement 1 in a perspective view with a first fastening section with a securing area;
• 2 B a section of the fastening arrangement with a connection part area as a further embodiment;
• 3 a front view of a fastening means of the fastening arrangement;
• 4th a perspective view of the fastening arrangement and with a roller unit as a further embodiment;
• 5 a perspective view of the fastening arrangement with the roller unit and the securing area as an embodiment.

The 1 shows a mounting arrangement 1 in a schematic representation with a first fastening section 2 as a mounting plate for fastening a second fastening section 3 (Not shown). The first fastening section 2 is made, for example, from a metal sheet, for example a sheet steel, and can, for example, be designed as a formed sheet metal part. To fasten the two fastening sections 2, 3, the fastening arrangement 1 multiple fasteners 4th on, the fastening means 4th than a screw 8th with a screw head 9a is trained. The screw 8th is designed, for example, as a carriage bolt and / or a round head screw, the screw head 9a is flat and rounded. The fastening arrangement 1 has four fasteners 4th on, in principle at least or exactly one fastening means 4th for fastening the two fastening sections 2.3 is sufficient. For example, the fastening arrangement 1 exactly two or exactly three fasteners 4th on which, for example, depending on the use or area of application of the fastening arrangement 1 are selectable in their dimensioning. For example, the fastening means 4th according to a relevant standard, e.g. DIN 603 , manufactured and have a metric ISO thread.

The first fastening section 2 has a basic area 5 on, being the base area 5 in the 1 is indicated as a dashed line. The basic area 5 is designed as a two-sided flat surface section, the base area 5 for flat mounting of the second fastening section 3 is formed on one side. To this end, the second fastening section 3 For example, a counter surface which is attached to the base area 5 can be arranged flat. The basic area 5 has an access opening 7a and a form-fit opening 7b which are connected to each other and the common receiving opening 6th form. The basic area 5 has several common receiving openings 6th on which from the first fastening section 2 are separated. In this exemplary embodiment, the basic area 5 four common receiving openings 6th on, with the receiving openings 6th are each formed continuously and the first fastening portion 2 break through, so that an access from one side to another side of the first fastening section 2 is created. The receiving opening 6th is designed in its basic shape as a keyhole and / or keyhole opening.

The access opening 7a is designed as a circular and / or substantially circular opening and is with the form-fitting opening 7b connected. The fastener 4th is within the form-fit opening 7b arranged and assumes an assembly state. This creates the form-fit opening 7b in the 1 through the fastener 4th shown hidden.

Under the mounting condition of the fastener 4th is understood in the following the state in which the fastening means 4th in the form-fit opening 7b arranged and with the first fastening portion 2 is rotatably connected. The assembly state describes a connected state of the fastening means 4th with the first fastening section 2 , wherein the second attachment portion 3 not on the first fastening section 2 is arranged. The assembly state represents an intermediate step before a final assembly state with the second fastening section 3 It is advantageous that initially all fastening means 4th assume a fixed position in the assembled state before the second fastening section 3 is arranged, so that a quick and easy assembly of the fastening arrangement 1 is created.

The access opening 7a has a larger opening area than the form-fit opening 7b formed so that the form-fit opening 7b as a taper opposite the access opening 7a is trained. The access opening 7a has, for example, in its basic shape a cross-sectional profile of the fastening means 4th , for example a round, a square or a hexagonal cross-sectional profile, with the access opening 7a at least larger than the screw head 9a of the fastener 4th is designed so that this can be carried out. The access opening 7a serves to feed the fastener 4th . One fastener each 4th is in one of the form-fitting openings 7b arranged, the fastening means 4th over the form-fit opening 7b from one side of the first fastening section 2 on the other Side of the first fastening section 2 extend. This causes the screw head to lie 9a on a rear side of the base area 5 on and a screw thread 9c (not shown) is on the other side of the first attachment section 2 . The form-fit opening 7b serves to connect the first fastening section in a form-fitting manner 2 with the fastener 4th . The fastening means is thus in the assembled state 4th non-rotatably with the first fastening section 2 connected.

The first fastening section 2 has a backup area 10 on, with the backup area 10 with the basic area 5 is connected in one piece and / or in one piece. The security area 10 is designed as a tab, as a wing or as a tongue and has an elongated and / or elongated basic shape, with the securing area 10 from the base area 5 starting into the common receiving opening 6th extends. The security area 10 is on the side of the access opening 7a with the basic area 5 connected and extends from there over the form-fitting opening 7b . The security area 10 has a mounting portion 11a on, which as a free end of the security area 10 is formed, wherein the fastening means 4th in the assembly state to the assembly part area 11a assigned. The security area 10 is one-sided to the basic area 5 connected, with the security area 10 a connection sub-area 11c for one-piece connection of the security area 10 with the basic area 5 having. The connection sub-area 11c represents, for example, a connected end of the security area 10 The connection sub-area 11c is for example as a microjoint connection 20th trained and with the basic area 5 connected, the microjoint connection 20th by flexibly connecting the security area 10 excels. For example, the microjoint connection is formed by a narrow web from the common starting material. The free end of the security area 10 or the assembly sub-area 11a can be moved flexibly and / or freely oscillated in the form-fit opening 7b arranged.

The security area 10 overlaps the access opening 7a and the form-fit opening 7b so that the common receiving opening 6th through the security area 10 is restricted. Furthermore, the security area 10 a guide portion 11b on, the guide portion 11b over the access opening 7a extends. The leadership sub-area 11b is used to secure the fastener 4th when feeding through the access opening 7a and when moving into the form-fit opening 7b educated. The leadership sub-area 11b is between the assembly section 11a and the connection sub-area 11c arranged, wherein the guide portion 11b connects the two in one piece. The security area 10 with the assembly section 11a , the leadership sub-area 11b and the connection sub-area 11c is in one piece with the base area 5 connected and made from a common starting material, for example from a metal sheet, in particular from a steel sheet. For example, the access opening 7a , the form-fit opening 7a , the security area 10 with the sub-areas, e.g. with the microjoint connection 20th , manufactured in a joint manufacturing process, e.g. in a laser cutting process.

The first fastening section 2 assigns multiple backup areas 10 on, with one being the security area 10 a common receiving opening 6th assigned. The security areas 10 are in this exemplary embodiment point-symmetrical to one another on the first fastening section 2 arranged, with two security areas 10 V-shaped or all four security areas 10 Are aligned in an X-shape to one another. It is advantageous that the securing areas are aligned in an X-shape 10 a space-saving mounting arrangement 1 is created. It is also advantageous that the X-shaped alignment of the securing areas 10 a common shifting back of the fastening means 4th by different directions of movement of the individual fasteners 4th within the receiving openings 6th prevent, so that a simpler assembly of the fastening arrangement 1 is created.

In the assembled state of the fastener 4th is the fastener 4th or the screw 8th in the form-fit opening 7b arranged with the screw head 9a between the first attachment portion 2 and the security area 10 is arranged. The fastener 4th is between the first attachment portion 2 and the security area 10 recorded secured, so that in a further assembly of the second fastening portion 3 the fastener 4th secured against loss on the first fastening section 2 is arranged. Furthermore, the fastening means 4th in the assembled state by a form-fit connection with the form-fit opening 7b secured against rotation, so that the fastening means during further assembly 4th for example does not have to be held in rotation by an assembly worker and a fastening arrangement 1 is created with a simplified assembly.

The form-fit opening 7b has a form-fit contour or has a basic shape which is suitable as a rotation lock for the fastening means 4th to build. Such a form-fit opening 7a is in the 2a and 2 B shown. The 2a shows a perspective view of a detail of the fastening arrangement 1 out the 1 , the form-fit opening 7b is designed as a square open on one side and several form-fitting edges 18th having. The fastener 4th is from the essentially round access opening during assembly 7a into the square and tapered form-fit opening 7b displaceable, the fastening means 4th in the assembled state on the form-fit edges 18th is present. To secure the two in a form-fitting manner against rotation, the fastening means 4th a form-fit mating section 14th which in 3 is shown, which in its basic shape of the form-fitting opening 7b corresponds to.

The fastening means is in the assembled state 4th on the first attachment portion 2 in one support direction SR supported. The direction of support SR is perpendicular to the base area 5 formed and extends in the direction of the second fastening portion 3 . The fastener 4th is supported in the assembly state via, for example, the screw head 9a on the first attachment portion 2 from. The screw head 9a is based on one of the form-fit edges 18th surrounding section of the first fastening section 2 starting, taking in an opposite direction GR which are opposite to the support direction SR runs, this is at the security area 10 supports. The screw head, for example, is in the assembled state 9a with its rounded side on the security area 10 touching or non-contacting with a tolerance distance and is in the opposite direction GR secured with the screw head 9a on the first fastening portion via an annular inner surface 2 in the support direction SR is supported and secured. The screw head is an alternative or optional addition 9a through the assembly section 11a against the first fastening section 2 in the opposite direction GR elastically stretched.

Furthermore, the security area 10 with the assembly section 11a the basic shape of the form-fit opening 7b on, for example both together by a cutting process, in particular laser cutting process or punching process, and by reshaping the securing area 10 angled to the base area 5 are formed. The security area 10 is in the 2a via the connection sub-area 11c , e.g. the microjoint connection 20th , to the basic area 5 angled bent over, the angle of the securing area 10 depending on the fastener 4th , e.g. a height of the screw head 9a , can be done. The security area 10 can, for example, be done manually during assembly by pressing the fastener against it 4th bend up the fastener 4th into the form-fit opening 7b is relocated, the backup area 10 is plastically deformed.

The securing area is an alternative to plastic deformation 10 designed to be elastically deformable. The 2 B a section of the fastening arrangement 1 in a perspective view with a formed part area 12th as a further embodiment. The connection sub-area 11c of the security area 10 forms the formed part area 12th , where the formed part area 12th the security area 10 with the basic area 5 connects. The formed part area 12th is in one piece and / or in one piece with the base area 5 connected is. For example, these are made from a common starting material, for example a steel sheet, with these being manufactured and / or formed together in a common cutting process, for example stamping process, and in a subsequent or integrated forming process. The formed part area 12th forms a deformation contour, the deformation contour essentially in the opposite direction GR is formed, wherein the fuse area 10 parallel to the base area 5 and in the opposite direction GR is formed offset. The security area 10 at least partially overlaps the form-fit opening 7b so that the fastener 4th thanks to the elastically movable safety area 10 is secured. In contrast to the microjoint connection 20th is the formed part area 12th over a wider cross-sectional area with the base area 5 connected. For example, the formed part area 12th the same cross-sectional area as the guide portion 11b and / or the assembly sub-area 11a on, whereby a stable and elastic connection is created.

In the 2a and 2 B are the security areas 10 with the management subareas 11b shown, the guide subregions 11b Depending on the embodiment, angled or parallel to the base area 5 are trained. In the 2a is the leadership sub-area 11b with the connection and assembly area 11a , 11a angled to the base area 5 formed so that a ramp-shaped guide 4th when moving the fastener 4th from the access opening 7a into the form-fit opening 7b is formed. Furthermore, the 2 B the performance example with the formed parts area 12th as a connection sub-area 11c , where the formed part area 12th is formed substantially S-shaped. The leadership sub-area 11b and the assembly section 11a are designed as a flat surface and parallel to the base area 5 educated. This will make the fastener 4th when moving into the form-fit opening 7b perpendicular to the direction of support SR through the guide section 11b guided.

The 3 Figure 3 shows a front view of the fastener 4th or the screw 8th in a preferred embodiment. The fastener 4th has a support contour section 13th and the form-fit counterpart section 14th on, wherein the support contour section 13th to be supported on the first fastening section 2 and the form-fit mating section 14th for form-fit connection with the form-fit opening 7b are trained. The fastener 4th is than the screw 8th formed and has the screw head 9a , a square neck 9b and the screw thread 9c on, with the screw head 9a the support contour section 13th and the square neck 9b the form-fit mating section 14th form. The screw 8th is in the assembled state with the screw head 9a on one side of the first fastening section 2 arranged, the screw thread 9c through the receiving opening 6th on the other side of the first fastening section 2 extends and for connection to the second fastening portion 3 is trained. The screw 8th is in the 3 as a lock screw and / or as a truss head screw with a square neck 9c educated.

In the 4th is the mounting arrangement 1 in a perspective view with the first and the second fastening section 2 , 3 shown as a further embodiment of the invention. There is also a roller unit 15th with a rotatable wheel 16 shown, the roller unit 15th the second fastening section 3 having. The second attachment section 3 is for example as a receiving portion of the reel unit 15th formed, the second fastening portion 3 the counter surface for arranging on the base area 5 having. The role unit 15th is designed, for example, as a swivel castor unit and is perpendicular to the base area 5 trained steering axis rotatable and / or pivotable. For example, the fastening arrangement 1 and the roller unit 15th designed to be attached to a transport trolley, for example a workshop trolley. The first and second attachment sections 2 , 3 are connected to each other and via the fasteners 4th attached to each other. The fastening arrangement 1 is shown in the final assembly state, with the fastening means 4th in the form-fit opening 7b are arranged and through connection openings of the second fastening portion 3 extend and are tightened with a fastening partner such as a nut.

According to this exemplary embodiment, the first fastening section 2 a security area 10 with several assembly sections 11a and several guide sub-areas 11b on, which have a common connection sub-area 11c with the basic area 5 are connected. The connection sub-area 11c is as a formed part area 12th formed, wherein the deformed part area 12th central to the four receiving openings 6th arranged in the middle and with the base area 5 Is formed in one piece. The formed part area 12th connects the management and assembly areas 11a , 11c with the basic area 5 , wherein the first attachment portion 2 four assembly sub-areas 11a and four guide sections 11b having. The four assembly sub-areas 11a are each about one of the four guide sub-areas 11b on the one formed part area 12th arranged in one piece. The assembly sub-areas 11a are designed to diverge from one another, the form-locking openings 7b rectified to the assembly part area 11a on the first mounting section 2 are arranged. The form-fit openings 7b are spaced apart, with two sub-assembly areas 11a are arranged along a straight line and / or an alignment and are formed in the opposite direction. Thus there are two form-fit openings in each case 7b along the straight line facing one another openly formed. This makes the fasteners 4th along the straight line in opposite directions into the form-fit opening 7b relocatable.

According to the exemplary embodiment, the assembly sub-areas 11a and the leadership sub-areas 11b Are arranged in an X-shape to one another. As a result of the X-shaped arrangement, these are arranged along two straight lines that cross one another and are designed to be oriented towards the outside. This means that there are two fasteners each 4th during assembly in the opposite direction perpendicular to the support direction SR into the form-fit opening 7b relocatable. It is advantageous that through an X-shaped and diverging alignment of the form-fit openings 7b and the security areas 10 , an additional mutual form fit via the second fastening section 3 against shifting back of the fastening means 4th is formed so that a fastening arrangement 1 is created with a simpler and safer final assembly.

As an alternative to the X-shaped alignment, there is one area of the formed part 12th and multiple assembly sections 11a and the plurality of guide portions 11b H-shaped. The 5 the fastening arrangement in a perspective view 1 with the roller unit 15th with the second fastening section 3 , as in 4th already describe as a further embodiment. The assembly sub-areas 11a and the leadership sub-areas 11b extend in pairs in opposite directions, with these as the forming part area 12th trained connection sub-area 11c are connected. Two guide sections each 11b are closely adjacent to the formed part area 12th arranged and over the formed part area 12th resiliently with the first fastening section 2 connected.

The assembly sub-areas 11a contact the fastening means in the assembled state 4th , so that this over the elastic formed part area 12th the fastener 4th in the mounting state in the support direction SR preload. By an elastic movement of the one assembly part area 11a in the opposite direction GR becomes the other adjacent sub-assembly area 11a in the opposite direction of support SR emotional. According to the exemplary embodiment, the paired assembly subregions 11a and the leadership sub-areas 11b with the one formed part area 12th H-shaped. It is advantageous that the fastening means 4th through the pre-stressed assembly areas 11a for example free of play on the first fastening section 2 fit so that the fasteners 4th additionally via frictional connection in the form-fitting openings 7b are held.

Alternatively or optionally in addition, the security area 10 a holding element 17th on, the retaining element 17th within the assembly sub-area 11a is arranged and in the support direction SR is trained. In the 5 is the holding element 17th indicated as a dashed line and has, for example, an oval basic shape. The holding element 17th is for example as a raised contour on the fastening means 4th aligned side of the security area 10 educated. Alternatively, the retaining contour is designed as a recess in the securing area 10 brought in. The holding element 17th serves to create a resistance to the displacement of the fastener 4th so that the fastener 4th in the assembled state against shifting back into the access opening 7a through the holding element 17th is secured.

In a further alternative embodiment, the assembly part is 11a formed curved and has a curvature in the opposite direction GR on. The fastening means is in the assembled state 4th , for example with the round screw head 9a , within the curvature of the mounting part area 11a arranged so that a releasable snap connection between the fastening means 4th and the assembly section 11a the fastener 4th additionally form-fitting in the form-fitting opening 7b holds.

List of reference symbols

1

Mounting arrangement

2

first fastening section

3

second fastening section

4th

Fasteners

5

Basic area

6th

Receiving opening

7a

Access opening

7b

Form-fit opening

8th

screw

9a

Screw head

9b

Square neck

9c

Screw thread

10

Security area

11a

Assembly part area

11b

Leadership subarea

11c

Connection subarea

12th

Formed parts area

13th

Support contour section

14th

Form-fit mating section

15th

Roller unit

16

wheel

17th

Retaining element

18th

Form fit edge

20th

Microjoint connection

SR

Support direction

GR

Opposite direction

QUOTES INCLUDED IN THE DESCRIPTION

This list of the documents listed by the applicant was 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.

Patent literature cited

• EP 1637351 A1 [0004]

Non-patent literature cited

• DIN 603 [0022, 0045]
• ISO 8677 [0022]

Claims (15)

Fastening arrangement (1) with a first fastening section (2), with a fastening means (4), the first fastening section (2) having a base area (5) with an access opening (7a) and with a form-fitting opening (7b), the fastening means (4 ) can be fed in via the access opening (7a) and displaced from the access opening (7a) into the form-fit opening (7b), the fastening means (4) being arranged in the form-fit opening (7b) and secured against rotation by the form-fit opening (7b) and in a support direction (SR) is secured by the first fastening section (2), characterized in that the first fastening section (2) has a securing area (10) for securing the fastening means (4), the securing area (10) with the base area (5 ) is connected in one piece, the securing area (10) having a sub-assembly area (11a), the sub-assembly area (11a) opposing the fastening means (4) in the direction of support (SR). Fastening arrangement (1) according to Claim 1 , characterized in that the securing area (10) and the base area (5) are made in one piece from a common starting material. Fastening arrangement (1) according to Claim 1 or 2 , characterized in that the fastening means (4) has a support contour section (13) and a form-fitting counterpart section (14), the fastening means (4) being supported on the first fastening section (2) in the support direction (SR) via the support contour section (13) and wherein the fastening means (4) is positively connected to the form-fitting opening (7b) via the form-fitting counterpart section (14). Fastening device (1) according to one of the preceding claims, characterized in that the form-fit opening (7b) and the access opening (7a) form a common receiving opening (6), wherein the receiving opening (6) is separated from the base area (5) and wherein the Securing area (10) is formed or co-formed by a protrusion from the base area (5) into the receiving opening (6). Fastening arrangement (1) according to one of the preceding claims, characterized in that the securing area (10) has a guide sub-area (11b), wherein the guide sub-area (11b) for guiding the fastening means (4) is connected to the mounting sub-area (11a) and wherein the securing area (10) overlaps the form-fit opening (7b) and the access opening (7a) so that the fastening means (4) when fed via the access opening (7a) and when shifting into the form-fit opening (7b) through the guide sub-area (11b) counter to the support direction (SR) is secured. Fastening arrangement (1) according to one of the preceding claims, characterized in that the securing area (10) has a connecting sub-area (11c), the connecting sub-area (11c) being designed as a microjoint connection (20) and wherein the securing area (10) has the connection sub-area (11c) is integrally connected to the base area (5). Fastening arrangement (1) according to one of the Claims 1 to 5 , characterized in that the securing area (10) has a connecting sub-area (11c), wherein the connecting sub-area (11c) is designed as a forming part area (12) for forming a forming contour and wherein the securing area (10) over the forming part area (12) with the The base area (5) is connected in one piece. Fastening arrangement (1) according to one of the preceding claims, characterized in that the first fastening section (2) has a plurality of securing areas (10), (each of the plurality of securing areas (10) each having one of the sub-assembly areas (11a) and) wherein the plurality of securing areas (10) are integrally connected to the base area (5). Fastening arrangement (1) according to Claim 8 , characterized in that the plurality of securing areas (10) are arranged with an X-shaped alignment within the base area (5). Fastening arrangement (1) according to one of the Claims 1 to 7th , characterized in that the securing area (10) has several sub-assembly areas (11 a), each sub-assembly area (11a) being assigned to one of the form-fit openings (7b). Fastening arrangement (1) according to Claim 10 , characterized in that the securing area (10) has several guide subareas (11b), the guide subareas (11b) for guiding the respective fastening means (4) being connected to the mounting subareas (11a) and the securing area (10) having a connecting subarea (11c) ), wherein the connection sub-area (11c) is connected to the one-piece connection of the securing area (10) with the base area (5), the multiple assembly sub-areas (11a) being connected to the connection sub-area (11c) via the respective guide sub-areas (11b). Fastening arrangement (1) according to Claim 10 or 11 , characterized in that the securing area (10) has four sub-assembly areas (11 a), the sub-assembly areas (11 a) being arranged in an H-shape. Fastening arrangement (1) according to Claim 10 or 11 , characterized in that the securing area (10) has four sub-assembly areas (11 a), the sub-assembly areas (11 a) being arranged in an X-shape. Mobile device with a body and at least one roller unit (15) and the fastening arrangement (1) according to one of the preceding claims, characterized in that the roller unit (15) is fastened and / or can be fastened to the body via the fastening arrangement (1). Method for assembling the fastening arrangement (1) according to one of the Claims 1 to 13th and / or the mobile device Claim 14 , wherein in an assembly step the fastening means (4) is converted into the assembled state and / or final state, so that the assembly sub-area (11a) secures the fastening means (4) in the assembled state and / or the final state against the support direction (SR).

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