DE102017120242A1 - Telematics unit, assembly of a vehicle and method for mounting and dismounting a telematics unit - Google Patents

Abstract

The invention relates to a telematics unit (1) which comprises a telematics box (2) for receiving and connecting components for the communication and data connection of a vehicle (107). Here, the telematics unit (1) comprises the telematics box (2) and a holding frame (3), wherein the holding frame (3) comprises an opening (3e), wherein the telematics box (2) and the holding frame (3) are adapted to one another such that the telematics box (2) is received in the opening (3e) in the mounted state and is locked to the holding frame (3), so that the telematics box (2) is carried by the holding frame (3) and can be removed by unlocking.

Description

The invention relates to a telematics unit, an assembly of a vehicle and a method for mounting and dismounting a telematics unit according to the preamble of claim 1 or 13 or 14.

From the DE 295 00 691 U1 a telematics unit is known which comprises a telematics box for receiving and connecting components for the communication and data connection of a vehicle.

The invention has for its object to develop a telematics unit, an assembly of a vehicle and a method for mounting and dismounting a telematics unit, wherein an assembly or disassembly process of the telematics box with regard to handling and with regard to a load on the components during assembly and disassembly is improved.

This object is achieved on the basis of the features of the preamble of claim 1 or 13 or 14 by the characterizing features of claim 1 or 13 and 14 respectively. In the respective subclaims advantageous and expedient developments are given.

The telematics unit according to the invention is designed such that the telematics unit comprises the telematics box and a holding frame, wherein the holding frame comprises an opening, wherein the telematics box and the holding frame are adapted to one another such that the telematics box is received in the opening in the assembled state and with the holding frame is locked so that the telematics box is supported by the support frame and removable by unlocking. As a result, both a mounting and a dismantling of the Telematikbox is improved, since the Telematikbox can be handled by the easy recognizability of the support frame unerring with one hand and there can be prevented by ensuring the accurate handling of high mechanical stress of the Telematikbox and the holder frame.

Furthermore, it is provided to form the holding frame as circumferentially closed holding frame. As a result, the holding frame has a high intrinsic stability.

It is also envisaged that the holding frame at its opening comprises at least two coupling means, that the Telematikbox between an upper side and a lower side comprises at least two counter-coupling means, wherein the Telematikbox in the assembled state so in the opening of the holding frame sits that the individual coupling means and the individual counter-coupling means form coupling pairs, by which the Telematikbox is captively fixed in the holding frame. As a result, a reliable mounting of the Telematikbox is ensured in the support frame and at the same time created the condition that the Telematikbox can be solved with a simple handle of the support frame.

Furthermore, the holding frame comprises at one side facing away from its opening outside at least two clamping means, wherein the holding frame with these clamping means in a recess of a vehicle body of a vehicle is positively fastened. As a result, the support frame is stabilized by the vehicle body, so that it can make at most slight evasive movements in the assembly and disassembly of Telematikbox and so assists a purposeful joining and separation.

It is also envisaged that the telematics box comprises at least one unlocking means, wherein by means of the unlocking means by a linear movement of one of the coupling means or one of the counter-coupling means is movable such that a formed by one of the coupling pairs connection is released. By such displaceability of the unlocking means high joining forces or separation forces such as these e.g. occur at snap and / or locking connections reliably avoided.

Furthermore, it is provided that the unlocking means is formed by one of the counter-coupling means or by one of the coupling means. As a result, the number of individual components is kept low and also an increased operating force is avoided by power transmission losses.

It is also provided that the first coupling means of the holding frame is formed as a recess and that the first counter-coupling means of the telematics box is designed as a web. Such a compound is easy to manufacture and separate.

Furthermore, it is provided that the second coupling means of the holding frame is formed as a toothing and that the second counter-coupling means of the telematics box is formed as a toothing, wherein the toothing of the holding frame relative to the holding frame and / or the toothing of the Telematikbox relative to the Telematikbox is displaced. By such a configuration of the second coupling means and the second counter-coupling means is an assembly and separation of support frame and Telematikbox while avoiding the occurrence of forces that arise during snapping and unlatching, possible if the gears are aligned accordingly.

It is provided in particular that the toothing of the holding frame is designed as a rack immovably connected to the holding frame and that the toothing of the Telematikbox is designed as displaceable on a housing of Telematikbox rack, wherein it is provided in particular that the housing has a guide channel for the rack includes. By such a design and arrangement of the teeth an adjustment of the teeth to each other and thus a force-free Aneinandervorbeibewegen and locking with low construction costs possible.

It is also envisaged that the telematics box comprises a spring, which is arranged in particular in the guide channel between the housing of the telematics box and the rack such that the rack is pressed in the guide channel in a closed position. This ensures that the rack of the Telematikbox is permanently held in its locked position and so the Telematikbox remains permanently securely connected to the support frame after insertion into the support frame.

Furthermore, it is provided that the displaceable rack comprises an actuating element on which the rack in the guide channel against a force of the spring is displaceable to bring the sliding rack in an open position, wherein the teeth of the sliding rack in the open position on tooth gaps immovable rack are aligned. By the actuator, the rack can be easily moved by hand and put against the force of the spring in the open position, in which the two parallel aligned racks can be moved past each other transversely to their longitudinal extent.

It is also envisaged that the non-displaceable rack of the holding frame is enclosed in an assembled state of the telematics unit between the sliding rack of Telematikbox and a shoulder of the housing of the Telematikbox and / or that designed as a web first counter-coupling means of the Telematikbox engages behind the holder frame. In this way, the telematics box is securely fixed to the support frame.

• - dass die Baugruppe einen Halterahmen umfasst,
• - dass der Halterahmen derart auf die Aussparung in der Fahrzeugkarosserie angepasst ist, dass der Halterahmen im montierten Zustand in der Aussparung aufgenommen ist und mit der Fahrzeugkarosserie, insbesondere mittels Klemmmitteln verriegelt ist, so dass der Halterahmen von der Fahrzeugkarosserie getragen ist und
• - dass der Halterahmen und die Telematikbox derart aufeinander angepasst sind, dass die Telematikbox im montierten Zustand in einer Öffnung des Halterahmens aufgenommen ist und mit dem Halterahmen lösbar verriegelt ist, so dass die Telematikbox von dem Halterahmen getragen ist und aus dem Halterahmen durch Entriegeln herausnehmbar ist. Hierdurch ist sowohl eine Montage als auch eine Demontage der Telematikbox an dem mit der Fahrzeugkarosserie verbundenen Halterahmen verbessert, da die Telematikbox durch die leichte Erkennbarkeit des Halterahmens zielsicher mit einer Hand gehandhabt werden kann und da durch die Gewährleistung der zielsicheren Handhabung einer hohen mechanischen Belastung der Telematikbox und des Halterrahmens vorgebeugt werden kann..

The assembly according to the invention of a vehicle, which comprises a vehicle body with a recess and a telematics box, is characterized in that

• - that the assembly comprises a holding frame,
• - That the holding frame is adapted to the recess in the vehicle body, that the holding frame is received in the mounted state in the recess and is locked to the vehicle body, in particular by means of clamping means, so that the support frame is supported by the vehicle body and
• - That the holding frame and the telematics box are adapted to each other, that the telematics box is received in the mounted state in an opening of the holding frame and releasably locked to the holding frame, so that the Telematikbox is supported by the holding frame and is removable from the holding frame by unlocking , As a result, both an assembly and disassembly of the Telematikbox is improved at the associated with the vehicle body support frame, since the Telematikbox can be handled by the easy recognizability of the support frame unerring with one hand and there by ensuring the accurate handling of a high mechanical load of Telematikbox and the holder frame can be prevented.

The method according to the invention for mounting a telematics box on a holding frame connected to a vehicle body of a vehicle and for dismantling the telematics box from the holding frame connected to the vehicle body of the vehicle, in which the telematics box and the holding frame form a telematics unit, provides for the dismantling of the telematics box such that a locking of the telematics box on the support frame is first released by hand and without tools, wherein a force vector of a force applied for unlocking is aligned parallel to a plane defined by the vehicle body in the recess, the telematics box is unlocked by a sliding movement , As a result, both assembly and disassembly of the Telematikbox is improved because for mounting or dismounting of the Telematikbox essentially a force must be applied only in one direction, in which this can be absorbed by the vehicle body, without fear of deformation of the vehicle body must become.

Finally, it is provided that the telematics box after unlocking relative to the support frame is first tilted such that the telematics box remains during the tilting movement with a first counter-coupling means on a first coupling means of the holding frame in plant, wherein for unlocking, a toothed rack connected to the telematics box, which forms a second counter-coupling means of the telematics box, is displaced relative to the telematics box, such that teeth of the rack connected to the telematics box lie on tooth spaces of a rack connected to the support frame, which forms a second coupling means of the support frame, are aligned. In this way, a pivoting and pivoting of the telematics in the holding frame in and out of the support frame while avoiding forces that arise when snapping and unlatching, so that the handling is easier and in particular can be easily performed with one hand.

In the context of the invention, a telematics box is understood to mean an assembly unit which combines components of communication technology and information technology and which can be connected to other components of communication technology and information technology, such as, for example, e.g. active antennas and / or passive antennas and / or amplifiers and / or terminals wired and / or wirelessly connected.

Further details of the invention will be described in the drawing with reference to a schematically illustrated embodiment.

• 1: eine perspektivische Ansicht einer Telematikeinheit;
• 2: eine Darstellung entsprechend der 1, wobei die Telematikbox in Explosionsansicht gezeigt ist;
• 3 bis 6: eine Abfolge von perspektivischen Darstellungen, welche eine Montage der Telematikbox an einem Halterahmen der Telematikeinheit zeigen;
• 7: eine Draufsicht auf die Darstellung der 6;
• 8: eine Schnittdarstellung durch die Darstellung der 7 entsprechend der Schnittlinie VIII-VIII und
• 9: eine Schnittdarstellung durch die Darstellung der 7 entsprechend der Schnittlinie IX-IX.

Hereby shows:

• 1 a perspective view of a telematics unit;
• 2 : a representation according to the 1 wherein the telematics box is shown in exploded view;
• 3 to 6 a sequence of perspective views showing a mounting of the telematics box to a support frame of the telematics unit;
• 7 : a top view of the illustration of the 6 ;
• 8th : a sectional view through the representation of 7 according to section line VIII-VIII and
• 9 : a sectional view through the representation of 7 according to the section line IX-IX.

In the 1 a perspective view of a vehicle body 101 and a telematics unit 1 shown. The telematics unit 1 includes a telematics box 2 and a support frame 3 , This forms the holding frame 3 a firmly mounted holding element and the telematics box 2 forms an installation body. The vehicle body 101 includes a recess 102 , in which the holding frame 3 the telematics unit 1 is used. The vehicle body 101 is as a vehicle roof 103 educated. In the perspective view is an outside 104 the vehicle body 101 or the vehicle roof 103 visible, noticeable. A bottom 105 the vehicle body 101 or the vehicle roof 103 lies outside 104 opposite and points to an interior, not shown 106 a vehicle, not shown 107 to which the vehicle body 101 belongs. For initial installation, it is provided either the holding frame 3 or the support frame 3 and the telematics box 2 in an arrow direction y ' from a the vehicle 107 surrounding environment U in the recess 102 use. If the holding frame 3 and the telematics box 2 are used, these are interconnected as in the 6 to 9 is shown. The support frame 3 surrounds the telematics box 2 in the assembled state like a ring. Here is the telematics box 2 then in the holding frame 3 fixed so that this when handling the holder frame 3 their orientation to the support frame 3 maintains.

In the 1 is further evident that the holding frame 3 on opposite lateral sides 3a . 3c clamping means 4 . 5 includes, which when pressing the support frame 3 in the recess 102 the vehicle body 101 with a recess 102 circumferential jetty 108 lock, so the telematics unit 1 on the vehicle body 101 is fixed and can be solved by this only if the clamping means 4 . 5 be operated by means of a tool. It is provided that - to prevent unwanted disassembly - the clamping means 4 . 5 only from the interior 106 of the vehicle 107 are operated out. The transverse sides 3a . 3c and long sides 3b . 3d form a circumferential outside A3 of the holding frame 3 which is from an opening 3e of the holding frame 3 (please refer 3 ) points away, with the opening 3e - as mentioned - for the inclusion of the telematics box 2 is provided.

The joining of the telematics box 2 and the support frame 3 can be done for an initial assembly in a pre-assembly step, so that the telematics unit 1 as a unit with the vehicle body 101 can be connected.

The support frame 3 includes first coupling agents 7 and second coupling agents 8th , The telematics box 2 includes between a top 2 - 1 and a bottom 2 - 2 first counter-coupling means 10 and second counter-coupling means 11 , The first coupling agent 7 and the first counter-coupling means 10 form a first pair of couplings K1 , The second coupling agent 8th and the second mating coupling agent 11 form a second pair of couplings K2 , The second counter-coupling agent 11 is as unlocking device 13 as a gearing in the form of a rack 14 trained (see also 2 ). On a housing 70 the telematics box 2 is a guide channel 71 educated. In this is the rack 14 guided. The second coupling agent 8th of the holding frame 3 is as a toothing in the form of a rack 15 formed, which on the holder frame 3 is formed.

In the 2 is again the representation of 1 shown, with the telematics box 2 shown in exploded view, so that the guide channel 71 and the rack 14 are more recognizable. The telematics box 2 also includes a spring 72 , which in series with the rack 14 in the guide channel 71 arranged such that the rack 14 from the spring 72 in a closed position S1 is pressed, in which the rack 14 in the 1 is shown. Here is the rack 14 by hand on one of the rack 14 trained actuator 73 against the spring 72 in an open position S2 slid. The rack 14 is in the 5 in this open position S2 shown.

In the 3 to 6 is shown in single steps like the telematics box 2 in the frame 3 is used. In reverse order, these figures look like the telematics box 2 from the support frame 3 is removed. It is assumed in the illustrated embodiment that the holding frame 3 - like in the 1 shown - on the vehicle body 101 which is fixed in the 3 to 6 not shown for simplicity of illustration.

To the telematics box 2 from her in the 1 shown position P1 in one in the 3 shown position P3 bring the telematics box 2 with her first counter contact agent 10 which as a footbridge 10a is formed (see 1 ), in contact with the first contact agent 7 of the holding frame 2 brought as a return 7a is trained. This is the telematics box 2 to the support frame 3 attached and thereby is between the telematics box 2 and the support frame 3 a folding axis K formed around which the telematics box 2 opposite the support frame 3 can be given.

In the position P3 then lie the teeth 14a the rack 14 on teeth 15a the rack 15 (in each case only one of the teeth is designated as an example).

To the telematics box 2 further into the in the 4 shown position P4 To be able to pivot, must be either in the y-direction or from below in the direction of the rack 15 of the holding frame 3 a slight pressure on the telematics box 2 be exercised so that the rack 14 due to a bevel of tooth flanks of the teeth 14a and / or the teeth 15a against the spring 72 in the direction of the open position S2 (please refer 5 ) is moved and the teeth 14a self-locating between the teeth 15a slide or it must be the rack 14 by hand in x ' Direction of open position S2 to be moved.

Accordingly, another shift of the rack 14 in the direction of the open position S2 required to the telematics box 2 out of position P4 in one in the 5 shown position P5 to pivot in which the teeth 14a in tooth gaps 15b the fixed rack 15 of the holding frame 3 are received and then the rack in the open position S2 stands.

To get out of the position P5 in the in the 6 shown position P6 to come, the telematics box 2 further pivots up the teeth 14a the rack 14 over the teeth 15a the rack 15 lie, then being allowed to the rack 14 from the spring 72 in the closed position S1 is pushed, in which the teeth 14a the rack 14 on the teeth 15a the rack 15 rest, allowing a swing back about the folding axis K is prevented.

To the telematics box 2 for disassembly of the support frame 3 to separate, must - order from the position P6 in the position P5 to come - first to the housing 70 the telematics box 2 guided rack 14 against the spring 72 be moved so that their teeth 14a on the tooth gaps 15b the rack 15 of the holding frame 3 are aligned and the telematics box 2 around the folding axis K can be folded away from the support frame. After the rack 14 then on the rack 15 The rack can pass by 14 then from the spring 72 from the open position S2 back to the closed position S1 be pushed and the telematics box 2 completely from the support frame 3 be separated in which the first mating coupling agent 10 the telematics box 2 from the support frame 3 is moved away.

A force vector KV one for moving the first rack 14 from the closed position S1 in the open position S2 required force is parallel to one through the vehicle body 101 in the area of the recess 102 , in which the holding frame 3 is mounted, defined plane e (see also 1 ).

Through the telematics box 2 , the support frame 3 and the vehicle body 101 becomes an assembly B of the vehicle 107 formed (see 1 ).

In the 7 is the telematics unit 1 in the holding frame 3 used telematics box 2 shown in plan view, wherein also the vehicle roof 103 is shown in sections. In one in the 8th shown sectional view corresponding to a section line VIII - VIII are the superimposed tooth rails 14 and 15 recognizable. Here is the dental splint 15 of the holding frame 3 between the dental splints 14 the telematics box 2 and a paragraph 74 enclosed, the paragraph 74 through the housing 70 the telematics box is formed. Furthermore, between the clamping means 5 of the holding frame 3 and a jetty 16 of the holding frame 3 A gap 17 recognizable, in which the vehicle body (not shown here) engages when the holding frame 3 in the direction of the arrow y ' in the recess 2 of the vehicle roof 3 is pressed.

In one in the 9 shown, further sectional view, which corresponds to one in the 7 shown section line IX - IX runs, are also in the position P6 , those who 7 . 8th and 9 as well as the 6 show superimposed racks 14 and 15 recognizable. Here it is also recognizable that the teeth 14a the rack 14 on the teeth 15a the rack 15 rest when the rack is in its closed position S1 stands.

LIST OF REFERENCE NUMBERS

1

telematics unit

2

telematics

2a

Transverse side of 2

2-1

Top of 2

2-2

Bottom of 2

3

holding frame

3a, 3c

Transverse side of 3

3b, 3d

Long side of 3

3e

Opening of 3 to accommodate 2

4, 5

Clamping means of 3

6

Lock from 2 to 3

7

coupling agent

7a

return

8th

coupling agent

9

not used

10

Counter-coupling means

10a

web

11

Counter-coupling means

12

not used

13

unlocking

14

first rack

14a

Teeth of 14

15

second rack

15a

Teeth of 15

15b

Tooth gaps of 15

16

Footbridge of 3

17

Gap between 5 and 16

70

Housing of 2

71

Guide channel to 2 for 14

72

feather

73

Actuator of 14

74

Sales to 70 under 14

A3

Outside of 3

B

module

e

level

K

folding axis

K1 - K3

coupling pairs

KV

force vector

P1 to P4

Position of 2

S1

Closed position of 14

S2

Open position of 14

U

Surroundings

x

arrow

y, y '

arrow

101

vehicle body

102

recess

103

vehicle roof

104

outside

105

bottom

106

inner space

107

vehicle

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 29500691 U1 [0002]

Claims (15)

Telematics unit (1) comprising a telematics box (2) for receiving and connecting components for the communication and data connection of a vehicle (107), characterized in that the telematics unit (1) comprises the telematics box (2) and a holding frame (3) , wherein the holding frame (3) comprises an opening (3e), wherein the Telematikbox (2) and the holding frame (3) are adapted to each other that the Telematikbox (2) is received in the mounted state in the opening (3e) and with the holding frame (3) is locked, so that the telematics box (2) of the holding frame (3) is supported and removable by unlocking. Telematics unit after Claim 1 , characterized in that the holding frame (3) is designed as circumferentially closed holding frame (3). Telematics unit according to at least one of the preceding claims, characterized in that the holding frame (3) comprises at least two coupling means (7, 8) towards its opening (3e), that the telematics box (2) between a top (2-1) and a Bottom (2-2) at least two counter-coupling means (10, 11), wherein the telematics box (2) in the mounted state in the opening (3e) of the holding frame (3) sits, that the individual coupling means (7, 8) and the individual counter-coupling means (10, 11) coupling pairs (K1, K2) form, by which the Telematikbox (2) is fixed captive in the holding frame (3). Telematics unit according to at least one of the preceding claims, characterized in that the holding frame (3) at one of its opening (3e) facing away from outside (A3) at least two clamping means (4, 5), wherein the holding frame (3) with these clamping means (4, 5) in a recess (102) of a vehicle body (101) of a vehicle (104) is positively fastened. Telematics unit according to at least one of the preceding claims, characterized in that the telematics box (2) comprises at least one unlocking means (13), wherein by means of the unlocking means (13) by a linear movement of one of the coupling means (7, 8) or one of the counter-coupling means (10, 11) is movable such that a by one of the coupling pairs (K1, K2) formed connection is solved. Telematics unit according to at least one of the preceding claims, characterized in that the unlocking means (13) by one of the counter-coupling means (10, 11) or by one of the coupling means (7, 8) is formed. Telematics unit according to at least one of the preceding claims, characterized in that the first coupling means (7) of the holding frame (3) as a recess (7a) is formed and that the first counter-coupling means (10) of the telematics box (2) as a web (10a) is formed , Telematics unit according to at least one of the preceding claims, characterized in that the second coupling means (8) of the holding frame (3) is formed as a toothing and that the second counter-coupling means (11) of the telematics box (2) is formed as a toothing, wherein the toothing of the holding frame (3) relative to the holding frame (3) and / or the toothing of the telematics box (2) relative to the telematics box (2) is displaceable. Telematics unit after Claim 8 , characterized in that the toothing of the holding frame (3) as with the holding frame (3) immovably connected rack (15) is formed and that the toothing of the Telematikbox (2) as on a housing (70) of the Telematikbox (2) displaceable rack (14) is formed, wherein it is provided in particular that the housing (70) comprises a guide channel (71) for the rack (14). Telematics unit according to at least one of the preceding claims, characterized in that the telematics box (2) comprises a spring (72) which in particular in the guide channel (71) between the housing (70) of the telematics box (2) and the rack (14) is arranged, that the rack (14) in the guide channel (71) is pressed into a closed position (S1). Telematics unit according to at least one of the preceding claims, characterized in that the displaceable rack (14) comprises an actuating element (73) on which the rack (14) in the guide channel (71) against a force of the spring (72) is displaceable to bring the displaceable rack (14) in an open position (S2), wherein the teeth (14a) of the displaceable rack (14) in the open position (S2) on tooth spaces (15b) of the non-displaceable rack (15) are aligned. Telematics unit according to at least one of the preceding claims, characterized in that the non-displaceable rack (15) of the holding frame (3) in an assembled state of the telematics unit (1) between the displaceable rack (14) of the telematics box (2) and a shoulder (74) of the housing (70) of the telematics box (2) is enclosed and / or that as a web (10 a) formed first Counter-coupling means (10) of the telematics box (2) engages behind the holder frame (2). Assembly (B) of a vehicle (107), wherein the assembly (B) comprises a vehicle body (101) with a recess (102) and a telematics box (2), characterized in that - the assembly (B) has a support frame (3) comprising - that the holding frame (3) is adapted to the recess (102) in the vehicle body (101), that the holding frame (3) is received in the recess (102) in the assembled state and connected to the vehicle body (101), in particular by means of clamping means (4, 5) is locked, so that the holding frame (3) of the vehicle body (101) is supported and - that the holding frame (3) and the telematics box (2) are adapted to each other that the telematics box (2 ) is received in the mounted state in an opening (3e) of the holding frame (3) and releasably locked to the holding frame (3) so that the telematics box (2) is carried by the holding frame (3) and out of the holding frame (3) is removable by unlocking. Method for mounting a telematics box (2) on a holding frame (3) connected to a vehicle body (101) of a vehicle (107) and for removing the telematics box (2) from the holding frame (3) to the vehicle body of the vehicle (107) (3), wherein the telematics box (2) and the holding frame (3) form a telematics unit (1), characterized in that the dismantling of the telematics box (2) takes place in such a way that a lock (6) of the telematics box (2) on the Holding frame (3) is first released by hand and without tools, wherein a force vector (KV) of a force applied to the unlocking parallel to a by the vehicle body (101) in the region of the recess (102) defined plane (E) is aligned, wherein the Telematikbox (2) is unlocked by a sliding movement. Method according to Claim 14 , characterized in that the Telematikbox (2) after unlocking relative to the holding frame (3) is first tilted such that the Telematikbox (2) during the tilting movement with a first counter-coupling means (10) on a first coupling means (7) of the holding frame ( 3) remains in abutment, wherein for unlocking a toothed rod (14) connected to the telematics box (2) which forms a second counter-coupling means (11) of the telematics box (2) is displaced relative to the telematics box (2) such that teeth (14a ) of the toothed rack (14) connected to the telematics box (2) are aligned with tooth gaps (15b) of a rack (15) connected to the holding frame (3) which forms a second coupling means (8) of the holding frame (3).

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