DE102020004639A1 - Roof hood part of a driver's cab of a truck, driver's cab of a truck and method for fastening a housing of a functional part, in particular a lamp, to a base body of a roof hood part - Google Patents

Abstract

The invention relates to a roof hood part of a driver's cab of a truck, the roof hood part having a base body with an outside and an inside and a recess through which part of a housing of a functional part, in particular a lamp, can be guided from the outside in, the recess being an edge is delimited, with a retaining ring which bears against the edge from the inside, the retaining ring having at least one threaded nut and a hole aligned with the threaded nut for passing a screw through being provided, and/or the retaining ring having at least one hole with a lateral slot, so that a bolt with a pin projecting laterally from the bolt can be passed through the hole, and the base body has a hole with a lateral slot which is aligned with the hole of the retaining ring, and/or the retaining ring a hole for receiving a detent pin, or e has a clip, wherein a hole aligned with the hole in the retaining ring is provided in the base body for the passage of a locking pin or a clip.

Description

The invention relates to a roof hood part of a driver's cab of a truck. Furthermore, the invention relates to a driver's cab of a truck. The invention also relates to a method for fastening a housing of a functional part, in particular a lamp, to a base body of a roof hood part.

Driver's cabs of trucks are known from practice. It is also known that these driver's cabs can be equipped with roof hood parts. The roof hood parts are often plastic or plastic fiber components. The shape of the roof hood parts is often used to give the driver's cab a particularly aesthetic appearance and/or a particularly aerodynamic shape. It is known from practice that lights are integrated into the roof hood parts of the driver's cab.

It is known from practice to provide a recess for the housing of the lamp in a base body of a roof hood part and to glue the lamp into the recesses.

Against this background, the invention is based on the object of proposing a roof hood part for a driver's cab, a driver's cab of a truck and a method for fastening a housing of a functional part, in particular a lamp, to a base body of a roof hood part, which allow the housing of the functional part, in particular to be able to attach the lamp to the base body of the roof hood part with less expenditure of time and/or less material.

This object is solved by claim 1, claim 9 and claim 10 and claim 11. Advantageous embodiments are given in the following description and the dependent claims.

The invention is based on the basic idea of no longer only gluing the housing of the functional part, in particular of the lamp, to the roof hood part of a driver's cab of a truck. Rather, the invention proposes attaching a retaining ring to the roof hood part and using this to create the possibility of screwing or clipping the housing or connecting it to the roof hood part in the manner of a bayonet catch.

The subject of the invention is a roof hood part of a driver's cab of a truck. Roof hoods of truck driver's cabs are marketable goods in their own right and are often supplied by suppliers to truck manufacturers. There is also a market for retrofitting or replacing driver's cab roof hood parts, for example to change the aesthetic appearance of the driver's cab or when newer insights into improved aerodynamics for a driver's cab have arisen. Roof hoods are also used to gain space in order to be able to design the driver's cabin into a sleeping/living cabin.

The roof hood part according to the invention has a base body. This body has an outside and an inside. Furthermore, the base body has a recess through which part of a housing of a functional part, in particular a lamp, can be guided from the outside to the inside. Since the housings of functional parts, in particular lights, often have a polygonal cross section, the recess preferably also has a polygonal shape. However, any other geometric shape is conceivable. The shape of the recess is designed according to the housing of the functional part, in particular the lamp, to be fastened to the roof hood part.

The recess of the roof hood part is delimited by an edge.

According to the invention, a retaining ring is provided which rests against the edge of the recess from the inside.

In a first embodiment, the retaining ring has at least one threaded nut, with a hole aligned with the threaded nut for passing a screw being provided in the base body of the roof hood part.

The threaded nut can be designed as part of the retaining ring itself. For example, the retaining ring can be made of plastic, for example an injection-molded part made of plastic, with the threaded nut then already being produced in one piece with the retaining ring during the injection molding process. In such embodiments, the term threaded nut is to be understood to mean nothing more than a hole with an internal thread that is designed in one piece in the retaining ring. However, embodiments are also conceivable in which the threaded nut is designed as a separate part. The threaded nut is particularly preferably made of a different material than the retaining ring. Embodiments are possible in which the threaded nut is made of metal, with the metal threaded nut being overmolded when a retaining ring is made of plastic. Furthermore, execution tion forms possible in which the retaining ring has a recess, for example a hexagonal or an eight-lobed recess, into which a threaded nut is inserted, preferably with a close tolerance, preferably with a press fit. Furthermore, embodiments are possible in which the threaded nut is glued to the retaining ring. For example, a threaded metal nut can be glued to a plastic retaining ring. Furthermore, embodiments are possible in which the threaded nut has retaining tabs or clips with which it can hold on to the retaining ring. The threaded nut can also be attached to the retaining ring in a floating manner in order to compensate for tolerances. The floating mounting can also enable self-centering.

In a second embodiment, the retaining ring has at least one hole with a lateral slot, so that a bolt with a pin projecting laterally from the bolt can be guided through the hole. In this case, it is provided that the base body has a hole with a lateral slot that is aligned with the hole in the retaining ring. This embodiment can be used, for example, to implement a bayonet lock. As a bolt, for example, from EP 2 016 293 B1 known twist lock are used.

In a third embodiment, the retaining ring has a hole for receiving a locking pin or a clip or a rivet, a hole aligned with the hole in the retaining ring being provided in the base body for passing through a locking pin or a clip.

Compared to the solution from the prior art, which requires the housing of a light to be glued with a fastening edge to the edge of a recess in a roof hood part, the solution according to the invention offers the advantage of faster and/or clean assembly. In the case of the roof hood part according to the invention, only the quick attachment by means of screws, bolts or clips must be implemented when assembling the housing of the functional part, in particular the lamp. In contrast, gluing requires drying times and gluing requires more material, for example via primer, and gluing has a higher risk of contamination and higher requirements for cleaning after attachment.

The invention is suitable for attaching housings of functional parts. These are particularly preferably functional parts with electrical wiring. The electrical wiring can be a power supply. The electrical wiring can be a signal line. The functional part is particularly preferably a lamp, a sensor or a camera. The invention is described below using a lamp as a representative of a functional part. However, the following description of special features of the invention is not limited to the interaction with a housing of a lamp, but is also to be understood as a disclosure of these features in interaction with the housings of other functional parts, such as sensors or cameras.

In a preferred embodiment, the inner ring lying against the rim from the inside is connected to the rim. It is possible that the retaining ring is glued to the edge. It is also possible for the retaining ring to engage around the edge of the recess in the manner of a clamp or clip. Embodiments are also possible in which further holes are present in the edge of the base body and the retaining ring has pins, particularly preferably having expanding rivets, which pass through the holes from the inside to the outside. Furthermore, embodiments are possible in which the retaining ring itself is screwed to the edge of the recess, for example the edge of the recess has holes through which threaded pins pass, the threaded pins being fastened to the retaining ring and held on the outside by a nut .

In a preferred embodiment, the hole provided in the base body, which is aligned with the threaded nut, is designed with the same geometric shape as the internal thread of the threaded nut, ie preferably round. It is possible that the hole in the base body shape has the same geometric shape but is larger than the hole of the internal thread of the threaded nut. Likewise, embodiments are possible in which the hole in the base body has the same geometric shape and the same size as the hole of the internal thread. The advantage of a larger hole is that tolerance compensation is possible through the larger hole, with which manufacturing tolerances of the retaining ring and/or the base body can be compensated.

In a preferred embodiment, the geometric shape of the hole in the base body aligned with the threaded nut has a different geometric shape than the hole of the internal thread of the threaded nut. In a preferred embodiment, the hole in the base body is an elongated hole. For purposes of this invention, a hole is considered to be aligned with a threaded nut when the central axis of the internal thread of the threaded nut passes through the hole in the base of the roof hood partly leads. Due to the special shape of the hole in the base body, tolerance compensation can also be achieved.

In a preferred embodiment, the retaining ring has a multiplicity of threaded nuts, with a multiplicity of holes being provided in the base body, each of which is aligned with a threaded nut. In a preferred embodiment, the retaining ring has more than five, particularly preferably more than seven, particularly preferably more than ten threaded nuts and the base body has a corresponding number of holes aligned with these threaded nuts. In a preferred embodiment, the retaining ring has less than 40 threaded nuts, preferably less than 30, preferably less than 20, preferably less than 15 threaded nuts and the base body has a corresponding number of holes aligned with these threaded nuts.

In a preferred embodiment, the threaded nuts of the retaining ring are arranged equidistantly from one another along the retaining ring. In a preferred embodiment, however, not all of the threaded nuts are arranged equidistantly from one another along the retaining ring. The position of the threaded nuts in the retaining ring is particularly preferably chosen according to how well the housing of the lamp can be connected to the roof hood part.

In an alternative embodiment, a large number of holes are provided, each hole having a lateral slot so that a bolt with a pin projecting laterally from the bolt can be guided through the hole, a large number of holes being provided in the base body, each having a lateral slot and each aligned with a hole in the retaining ring. With this embodiment, it is possible to connect the housing of the light with a variety of bayonet locks with the retaining ring.

In a preferred embodiment, the shape of the recess is polygonal or amorphous.

In a preferred embodiment, the retaining ring and the threaded nut are made of a different material. The retaining ring is particularly preferably made of a plastic material, with the threaded nut also being able to be made of plastic, but made of a different plastic, or even made of metal, particularly preferably made of sheet metal.

In a preferred embodiment, the roof hood part has the housing of a functional part, in particular a lamp. A part of the housing is passed through the recess from the outside to the inside. The housing of the lamp has a fastening edge which rests against the edge of the recess of the roof hood part from the outside. A screw or bolt with a pin extending laterally from the bolt, or a clip or rivet connects the mounting rim of the lamp body to the retaining ring. In preferred embodiments, in which a large number of threaded nuts or a large number of holes with a lateral slot or a large number of holes are provided for interaction with a clip, it is provided in this embodiment that a large number of screws or a large number of Bolts with a pin protruding laterally from the bolt, or a large number of clips, or a large number of rivets, connects the fastening edge to the retaining ring.

In the embodiment in which one or a plurality of screws are provided, the screw preferably bears with its head on the outside of the fastening edge of the housing and is screwed into the threaded nut of the retaining ring, thereby making a hole in the fastening edge of the housing and passes through a hole in the edge of the recess.

In the embodiment in which one or a plurality of bolts are provided with a pin projecting laterally from the bolt, the bolt preferably rests with a head on the outside of the fastening edge of the housing and the pin engages behind the retaining rings from the inside like a bayonet , The bolt thereby passing through a hole in the mounting edge of the housing and a hole in the edge of the recess.

In the embodiment in which one or a plurality of clips are provided, the clip preferably has a head on the outside of the fastening edge of the housing and engages with a spring element behind the retaining ring from the inside, with the clip making a hole in the fastening edge of the Housing and a hole in the edge of the recess penetrates.

In a preferred embodiment, the fastening edge of the housing of the lamp has a seal on the side facing the edge of the recess of the roof hood part, which seal rests against the edge.

The driver's cab of a truck according to the invention has a roof hood part according to the invention.

The method according to the invention for fastening a housing of a lamp to a base body of a roof hood part sees the hin guide the retaining ring from the outside through the recess to the inside. Then the retaining ring is placed on the edge from the inside. It is possible to connect the retaining ring lying on the inside of the edge to the base body of the roof hood part, for example by gluing or clipping.

According to the invention, it is then provided that at least part of the housing of the lamp is guided through the recess until the fastening edge of the housing of the lamp rests against the edge from the outside. The fastening edge of the lamp is then fastened to the retaining ring by means of a screw or a bolt with a pin protruding laterally from the bolt.

• 1 eine perspektivische Darstellung eines Teils eines Grundkörpers eines Dachhaubenteils einer Führerkabine eines Lastkraftfahrzeugs in einem ersten Zustand,
• 2 eine perspektivische Darstellung des Teils nach 1 in einem zweiten Zustand,
• 3 eine perspektivische Darstellung des Teils nach 1 in einem dritten Zustand,
• 4 eine perspektivischen Darstellung des Teils nach 1 in dem Zustand von 1 aus einer anderen Perspektive,
• 5 eine perspektivischen Darstellung des Teils nach 1 in dem Zustand von 2 aus einer anderen Perspektive,
• 6 eine perspektivischen Darstellung des Teils nach 1 in dem Zustand von 3 aus einer anderen Perspektive
• 7 eine perspektivische Ansicht auf ein clipsartig ausgeführte Gewindemutter in ihrer Anbringung an den Haltering aus einer ersten Perspektive;
• 8 eine perspektivische Ansicht auf die clipsartig ausgeführte Gewindemutter in ihrer Anbringung an den Haltering gemäß 7 aus einer zweiten Perspektive und
• 9 eine perspektivische Ansicht auf die clipsartig ausgeführte Gewindemutter in ihrer Anbringung an den Haltering gemäß 7 aus einer dritten Perspektive.

The invention is explained in more detail below with reference to drawings that merely show embodiments of the invention. Show in it:

• 1 a perspective view of part of a base body of a roof hood part of a driver's cab of a truck in a first state,
• 2 a perspective view of the part 1 in a second state,
• 3 a perspective view of the part 1 in a third state,
• 4 a perspective view of the part 1 in the state of 1 from a different perspective
• 5 a perspective view of the part 1 in the state of 2 from a different perspective
• 6 a perspective view of the part 1 in the state of 3 from a different perspective
• 7 a perspective view of a clip-like threaded nut in its attachment to the retaining ring from a first perspective;
• 8th a perspective view of the clip-like threaded nut in its attachment to the retaining ring according to FIG 7 from a second perspective and
• 9 a perspective view of the clip-like threaded nut in its attachment to the retaining ring according to FIG 7 from a third perspective.

1 shows a perspective exploded view of part of a base body 1 of a roof hood part of a driver's cab of a truck. The body has a representation of the 1 non-visible outside 2 and an inside 3. Furthermore, the base body 1 has a recess 4 . A part of a housing 5 of a lamp can be passed through this recess 4 from the outside to the inside. The recess 4 is delimited by an edge 6 .

The invention provides a retaining ring 7 . The retaining ring 7 rests against the inside of the rim 6 in the assembled state.

in the in 1 embodiment shown, the retaining ring 7 has threaded nuts 8 . A hole 9 aligned with the respective threaded nut 8 for passing a screw 10 through is provided in the base body 1 .

The edge 6 has recesses 11 . Clamps 12 provided on the retaining ring 7 can engage around the edge 6 at the recesses 11 and thus hold the retaining ring 7 on the inside of the edge 6 .

The housing 5 of the lamp has a fastening edge 13 which rests against the edge 6 from the outside when the lamp is installed. Holes 14 are provided in the fastening edge 13 and are aligned with the holes 9 . When the housing of the light is assembled, the screws 10 connect the fastening edge 13 to the retaining ring 7.

2 shows the roof hood according to the invention with the retaining ring 7 mounted, while the housing 5 of the lamp is not yet mounted.

3 shows the roof hood part according to the invention with mounted retaining ring 7 and mounted housing 5.

4 shows the in 1 presented state from a different perspective. Likewise shows 5 the in 2 shown condition from a different perspective. Likewise shows 6 the in 3 presented state from a different perspective.

The nut 8 is designed like a clip, like that 7 , 8th , 9 show. The threaded nut 8 has a threaded cylinder 20 with an internal thread. The threaded cylinder 20 is carried out on a lug 21 . The tab 21 is part of a first clamping section 22 of the clip-like threaded nut 8 . The first clamping section 22 merges into a second clamping section 24 via a connecting section 23 . The first clamping section 22 is arranged on a first side of the retaining ring 7 (cf. 7 ); the second clamping section 24 is arranged on the opposite side of the retaining ring 7 (cf. 9 ). The first Clamping section 22 and the second clamping section 24 clamp the retaining ring 7 between them and thus hold the threaded nut 8 on the retaining ring 7. The second retaining section 24 has a hollow-cylindrical projection 25 pointing in the direction of the retaining ring 7, which extends into a hole in the Retaining ring 7 engages and thus positions the threaded nut 8 relative to the retaining ring 7 .

QUOTES INCLUDED IN DESCRIPTION

This list of documents cited 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 2016293 B1 [0013]

Claims (11)

Roof hood part of a driver's cab of a truck, the roof hood part having a base body with • an outside and an inside and • a recess through which part of a housing of a functional part, in particular a lamp, can be guided from the outside to the inside, the recess being formed by an edge is limited, characterized by a retaining ring which rests against the edge from the inside, wherein • the retaining ring has at least one threaded nut and in the base body there is a hole aligned with the threaded nut for passing a screw through, and/or • the retaining ring has at least one Has a hole with a slot on the side, so that a bolt with a pin projecting laterally from the bolt can be passed through the hole, and the base body has a hole with a slot on the side, which is aligned with the hole in the retaining ring, and/or the retaining ring has a hole for receiving a detent pin, or e has a clip or a rivet, a hole aligned with the hole in the retaining ring being provided in the base body for the passage of a locking pin or a clip. roof hood part claim 1 , characterized in that the retaining ring is connected to the edge. roof hood part claim 1 or 2 , characterized in that • the retaining ring has a plurality of threaded nuts and a plurality of holes are provided in the base body, each hole in the base body being aligned with a threaded nut and/or • the retaining ring has a plurality of holes, each hole having a lateral slot so that a bolt with a pin projecting laterally from the bolt can be passed through the hole, and a plurality of holes are provided in the base body, each hole in the base body having a lateral slot and each hole in the Base body aligns with a hole in the retaining ring. Roof hood part according to one of Claims 1 until 3 , characterized in that the recess delimited by the edge has a polygonal or amorphous shape. Roof hood part according to one of Claims 1 until 4 , characterized in that the retaining ring and the threaded nut are made of different materials. Roof hood part according to one of Claims 1 until 5 , characterized in that the threaded nut is clipped to the retaining ring. Roof hood part according to one of Claims 1 until 6 , characterized by a housing of a functional part, in particular a lamp, wherein • a part of the housing is passed through the recess from the outside inwards, • the housing has a fastening edge which rests against the edge from the outside, and • a screw or a Bolt connects the mounting edge to the retaining ring with a pin projecting laterally from the bolt or a clip or rivet. roof hood part claim 7 , characterized in that the fastening edge has a seal on the side facing the edge, which abuts against the edge. Driver's cab of a truck with a roof hood part according to one of Claims 1 until 8th . Method for fastening a housing of a functional part, in particular a lamp, to a base body of a roof hood part in a roof hood part according to one of Claims 7 until 8th , characterized by • passing the retaining ring from the outside through the recess to the inside, • applying the retaining ring from the inside to the edge. Method for fastening a housing of a functional part, in particular a lamp, to a base body of a roof hood part in a roof hood part according to one of Claims 7 until 8th , especially after claim 10 , characterized by • Passing through at least part of the housing of the functional part, in particular the lamp, through the recess until the fastening edge rests against the edge from the outside, • Connecting the fastening edge to the retaining ring by means of a screw or a bolt with a bolt protruding laterally from the bolt Pen.

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