DE19701184A1 - Motor vehicle pedal arrangement - Google Patents

Abstract

The driver's cabin (1) of a motor vehicle (2) has a floor (3) and a cover (4) over the mechanical parts. There is also a partition, or dashboard (5), with an instrument pedal (6). The drive arrangement includes a fuel supply (7) and feed (8). The pedal arrangement (9) is between the dashboard (5) and the floor (3) and it controls acceleration. It consists of a console (10), pedal arm (11), and foot pedal (12). The pedal arm is connected by the links (13,14) with the console. The link (13) is on the shaft (15) that itself rotates on the console and is also connected with the pedal arm.

Description

The present invention relates to a pedal arrangement for Vehicles of the type specified in the preamble of claim 1.

There are various types of automobile pedal assemblies known. A common construction has e.g. B. an accelerator pedal is mounted in a bracket attached to the cab floor. The accelerator pedal consists of a footplate that swings around a turn Kaxes are movably arranged near the cab floor and a lever led through the cab floor. Of the Lever is connected to a linkage that controls the movements of the Accelerator pedal on a fuel arranged on the vehicle engine Injection pump transmits. This construction has a front part, but also several disadvantages. The advantage is there in that the footplate in the vertical plane above it Swivel axis is arranged and thereby at the Fußbetäti in a circular shape that is ergonomically favorable for the driver towards the ground. The dirt is disadvantageous collections and sound transmission due to the construction conditional opening in the cab floor. Other disadvantages of one Pedals on the cab floor are difficult speed, the accelerator pedal together with other pedals on a front arrange assembly unit and thereby a rational manufac tion of the vehicle to allow, and also in that the Pedal stored in the floor sometimes felt as a hindrance becomes.

Another known construction is some of the ge mentioned problems due to a hanging arrangement of the accelerator pedal not at. In this case it is on the bottom of the fittings boards an articulated pedal arm suspended with an egg ner footplate is provided. The footplate is thereby in the vertical plane below the pivot axis and moves when actuating forward towards the bulkhead, d. H. from the driver path. This direction of movement leads to an unfavorable bean stress on the foot and leg as the driver places the heel on the Floor must move and / or the point of contact between  must shift the pedal and foot when actuating. In the worst case, and sometimes on the traffic safety the driver touches the foot then plate only at its extreme end. The well-known, floor side pedal assemblies thus have a considerably favorable movement sequence than the well-known hanging pedal arrangements. The hanging pedal assembly, however, has others Properties that in many ways match the properties of the bo are superior to the pedal arrangement on the side. So it can be together with other pedals simply on a pre-assembled Attach unit and thereby enables a rational Her position of the vehicle and also requires no opening soil, which also causes problems of dirt accumulation lungs are eliminated.

SE-C-502 184 shows a pedal assembly with a pedal that hanging in a on the bulkhead in a driver's cab Stuff attached bracket is arranged. The is shown Embodiment of an accelerator pedal of a motor vehicle, the Fuel regulation takes place via a throttle cable. The accelerator cable has an articulated head at one end, the one end a lever is connected, which is at a distance of ge named end about an axis fixedly arranged in the holder is pivotally mounted. This first lever is firmly connected with one lying on the opposite side of the axis second lever which is angled relative to the first lever is not. On the axis is also one end of an upper one Articulated arm pivoted, the other end pivoted is mounted on a pedal arm that with at its lower end is provided with a footplate. There is also an un tere articulated arm, one end of which rotates in the bracket and the other end is rotatably mounted on the pedal arm. When down pressing the foot plate actuates the upper articulated arm via a End nose on the second lever the latter in a downward direction Swiveling movement, and thereby the first lever performs an ent speaking upward pivoting movement. Doing this the first lever pulls on the throttle cable. At a such a linkage system, a sequence of movements similar to that  obtained with an accelerator pedal arranged on the floor, and the Foot does not have to go over the cab when operating the pedal that are moved. However, this pedal arrangement is for one flawless function requires that a through in the bulkhead passage opening is present and this is of such a size that the movement of the first lever is not restricted. This in turn, however, entails sound, dirt, smell and possibly gases can enter the cab.

Known solutions to these problems exist in various types pen of rubber sleeves or rubber bellows around such through passage openings are arranged around. Such rubber parts who however due to the constant movements that they out are very stressed, and also the Ge Fixing difficulties when the pe dalanordnung a complicated boom system of the SE-C-502 184 type shown.

The object of the present invention is thus a pedal arrangement to create in which the aforementioned problems let me avoid. In particular, the aim is that the Through openings that are required reliably against external environmental influences such as sound, dirt, gases and smell etc. are sealed.

This object is achieved in the preamble of claim 1 given pedal arrangement by those listed in claim 1 distinctive features. Such as a housing Console can easily the interior of the cab against the engine compartment of the vehicle and against the other exterior Shield the environment, as only the shaft is supported in the housing sealing required. Advantageously, the Ver binding element a second lever, which ver rigid with the shaft is bound. With such a second lever, the pedal effected actuation of the first lever can be simplified.

In one embodiment, the housing has at least one wall with a through opening and the shaft is in this  Through opening stored in such a way that an inner part the shaft in the housing and thus abge from the cab interior shields and an outer part of the wave outside the Ge is located, the first lever being rigid with the inner part the shaft is connected. The second lever is advantageous se rigidly connected to the outer part of the shaft.

In a further embodiment, the console has one for a concern on the wall provided contact surface, wherein the housing as a extending from the contact surface Recess is designed. The housing can be two each other have opposite walls, and the shaft can be split into two coaxial bushings arranged in one side wall be stored. With one, stored in two places Wave will be a high level of reliability and stable Function of the pedal arrangement achieved.

To make it easy to mount the first lever on the shaft the shaft can have two on each of the bushings protruding shaft ends include, both with rotation engage the first lever. In addition, each of these The shaft ends should be tapered towards the end and the first Lever two recesses with a correspondingly conical recess exhibit. With such a design, one can reliably establish a twist-proof connection. Around the reliability of the anti-twist connection to increase, each of the aforementioned shaft ends with a Be flattened and the first lever corresponding Have flats in the two recesses, each are designed so that they are at the appropriate flattening of the respective shaft end when the first lever with the shaft is connected.

The two shaft parts and the first lever can be easily Way together by a bolt inserted through this will hold. In addition, advantageously one Shaft end have an end area that is secured against rotation is connected to the second lever.  

In a further embodiment, between the pedal and the second lever a suspension are arranged, the white tere movement of the pedal allowed even when the lever are already in their end position. In this way protection against overstressing the pedal assembly hold and prevents damage to the same. It can the pedal includes a first handlebar with a footplate connected and arranged so that when he depresses the Footplate operated a second handlebar. The suspension is in front geous between the first and the second link ordered and includes a compression spring.

In an advantageous embodiment, the pedal arrangement provided for an accelerator pedal, the organ to be actuated comprises a throttle cable connected to a fuel supply element is connected to regulate the fuel supply to the engine.

Further features which characterize the invention are evident from the enclosed patent claims and the description below Exercise of an embodiment that relates to the fol related figures; therein shows:

Figure 1 is a schematic representation and partially in longitudinal section of a cab with an indicated pedal arrangement.

Fig. 2-4 the pedal assembly in side view and in various positions;

Fig. 5 is a disassembled image of the pedal assembly and

Fig. 6 shows the pedal assembly in cross-section along the line VI-VI in FIG. 2.

In Fig. 1, the driver's side of the interior 1 of a driver's house of a vehicle 2 is shown schematically. The cab is arranged on a conventional frame (not shown), which is part of a chassis. The driver's house has a cab floor 3 , which separates the interior from the chassis. The cab floor 3 is designed with a motor cover 4 protruding into the interior, which covers a drive unit attached to the frame, but not shown, gregat. Furthermore, the front part of the driver's cab floor 3 connects to a bulkhead 5 , which is mainly vertical, which still delimits the interior 1 at the front and on which a dashboard 6 is arranged. The drive unit comprises a fuel supply element 7 , which is connected to a pedal arrangement 9 via a throttle cable 8 and a passage (not shown) in the bulkhead 5 . The Pe dalanordnung 9 is arranged between the dashboard 6 and the driver's cab floor 3 in order to regulate the fuel supply to the drive unit and thus also the speed of the vehicle when actuated by the driver.

The following description of the pedal arrangement 9 refers to FIGS. 2-6. The pedal assembly 9 includes a console 10 , which is BEFE Stigt with screws, not shown, on the bulkhead 5 , and a pedal arm 11 which is bent backwards and is provided at its outer end with a foot plate 12 . In the example shown, the base plate 12 and the pedal arm 11 are made in one piece. The pedal arm 11 is connected to the console 10 via a first, upper link 13 and a second, lower and substantially parallel to the upper link 13 angeordne th link 14 . The upper link 13 is pivotally mounted at one end on a shaft 15 which is rotatably mounted in the bracket 10 , and at the other end pivotally connected to the pedal arm 11 via a pin 16 . The lower link 14 is pivotally connected at one end via a pin 17 to the console 10 and pivotally connected at the other end via a pin 18 to the pedal arm 11 . The shaft 15 rotatably mounted in the bracket 10 is rigidly or non-rotatably connected to a lever 19 , extends from the shaft 15 to the front through said passage in the bulkhead 5 and is connected via a joint head 20 to the throttle cable 8 . The shaft 15 is also rigidly or non-rotatably connected to a second lever 21 , which extends from the shaft 15 backwards and somewhat obliquely downwards, see FIG. Fig. 2, and is arranged for actuation by the foot plate 12 via the upper link 13 . The first and second levers 19 , 21 are firmly connected to one another at an angle of less than 180 °. For the return of the pedal arm 11 , a return spring 22 is arranged in the exemplary embodiment shown, which is attached at one end in egg ner spring eyelet 23 in the pedal arm 11 and at the other end to the obe ren handlebar 13 .

The console 10 has a front contact surface 24 which is held against the bulkhead 5 with the aid of the aforementioned screws guided through fastening holes 25 , see FIG. Fig. 5. In order to obtain a tight connection, a (not shown) seal between the contact surface 24 and the splash wall 5 can be arranged. The console 10 also has an upper mounting hole 26 through which it can be connected to a support member, not shown, for lateral support. The console 10 is designed with a housing 27 , which is formed by a recess extending from the contact surface 24 . The housing 27 is thus open on the contact surface 24 and has two, essentially mutually parallel side walls 28 , 29 and an upper and lower boundary wall which converges inwards from the opening. A bushing 30 , 31 is arranged in each of the side walls 28 , 29 in the inner end region of the housing 27 , ie, away from the contact surface 24 . The console 10 is fixed to the spray wall 5 in such a way that the opening of its recess is in the middle of the aforementioned implementation in the bulkhead 5 . As a result, the interior of the housing 27 is in communication with the outside, that is to say in front of the bulkhead 5 , while it is sealed inwards, ie toward the cab interior 1 .

The shaft 15 is composed of two concentrically arranged shaft parts 15 a and 15 b. The shaft parts 15 a and 15 b are held together by a bolt 32 which is guided through a central bore in the shaft parts 15 a, 15 b. The shaft parts 15 a and 15 b can be compressed with the aid of a nut 33 screwed onto the bolt 32 . The shaft part 15 a is inserted through a bushing 30 and the shaft part 15 b through the other bushing 31 . A bearing bush 34 is arranged between the shaft parts 15 a, 15 b and the respective bushing 30 , 31 . The two Wellentei le 15 a, 15 b each have an end portion 35, the housing in the Ge 27 is in the respective bearing bush 34 when the shaft portions 15 a, 15 b in the respective feedthrough 30, 31 a are guided. Each end region 35 has a slightly conical shape and is provided with a flat 36 . In the housing 27 there is also the first lever 19 which is non-rotatably connected to the end regions 35 of the two shaft parts 15 a, 15 b.

5 and 6, as seen from Fig., The first lever 19 on both sides of a conical, shape of the end portions 35 ent speaking recess 37 as well as one of the flat 36 of the conical end portions 35 corresponding flat 38 on. In addition, the first lever 19 is provided with a through hole 39 which runs centrally between the one recess 37 and the other recess 37 . In the installed state of the pedal assembly 9 , the two conical end regions 35 are thus inserted into the conical recesses 37 , and the bolt 32 extends through the shaft parts 15 a, 15 b and the through hole 39 . If after inserting the bolt 32 the nut 33 is tightened, the shaft parts 15 a and 15 b are pressed into the recesses 37 in such a way that an absolutely rotationally secure and play-free connection between the shaft 15 and the first belt 19 is obtained.

It should be noted that in the context of the invention, the end areas 35 and the recesses 37 can be provided with a shape other than that described above. You can, for example, cylindrical and verse hen with a flattening, which is preferably inclined relative to a central axis of the shaft parts 15 a, 15 b. The end regions 35 can also be provided with, for example, planar surfaces which converge towards one another and fit into correspondingly designed recesses 37 . The shaft part 15 a is connected to the second lever 21 on the outside of the housing 27 so that it cannot rotate. In the embodiment shown, the shaft part 15 a and the second lever 21 are made in one piece. A Schwenkbe movement of the second lever 21 accordingly causes a corresponding pivoting movement of the first lever 19 in the housing 27th

At the shaft part 15 a opposite end of the second He lever 21 , an upward compression spring 40 is arranged, which rests on the upper link 13 and is connected to it, see. Fig. 2-4. Furthermore, an upwardly directed stop lug 42 is arranged on the second lever 21 . The upper Len ker 13 is fork-shaped and has two forks 13 a and 13 b each provided with a bushing. The shaft parts 15 a and 15 b are in the installed position through one of the two bushings 42 , see. Fig. 6. The shaft parts 15 a and 15 b are each provided with an outer collar 44 , and if the shaft parts 15 a and 15 b are installed in the clamped position, there is between the respective collar 44 and the Ge side walls 28th , 29 such a distance that the upper link 13 is rotatably mounted on the shaft 15 . The shaft part 15 b has at the outer end a driver flange 45 , which is arranged in the manner for actuation by a hand throttle device that an actuation of the hand throttle device causes a pivoting movement of the first lever 19 . In addition, the driver flange 45 is arranged so that the position of the hand throttle device is not affected when the first lever 19 is actuated by the foot plate 12 .

When the footplate 12 is pressed in Fig. 2 downward, the upper link 13 as shown in Fig. 3 is shown pivoted about the shaft 15 downward. Here, the upper link 13 actuates the spring 40, the second lever 21 so that it is pivoted to un th, while the first lever 19 is pivoted upward and thereby exerts a pulling motion on the throttle cable 8 . It should be noted that the pressure force of the spring 40 must be so large that the spring can not be compressed by the force required to actuate the throttle cable 8 . To limit the movement of the first He lever 19 , a stop 46 is arranged in the housing 27 . Only when the first lever 19 is at its actuation on the stop 46 , does a further depression of the foot plate 12 ( FIG. 4) lead to a compression of the spring 40 , which thereby functions to a certain extent as overload protection. In order to prevent damage to the spring 40 , the upper link 13 reaches the impact nose 41 shortly before the spring 40 is fully compressed.

In the embodiment shown, the handlebars 13 , 14 , the levers 19 , 21 and the pedal arm 11 are made of plastic, preferably polyamide. Advantages of such a plastic include the low weight and the possibility of producing complicated shapes in a simple manner. However, in order to prevent damage to individual parts as a result of an excessively strong depression of the foot plate 12 , the spring 40 is of essential importance.

When the pedal is actuated, the driver places the heel on a substantially constant heel contact point on the driver's cab floor 3 , that is to say when the pedal is actuated, the driver does not have to shift his foot and the foot does not slide on the footplate 12 during the depression. This is achieved by a mutual coordination of the lengths and the angles of the handlebars 13 , 14 , so that the footplate 12 moves in a line during actuation, which is caused by the length ratio of the handlebars to each other, the angular position of the handlebars to each other, the distance between the attachment points of the handlebar in the pedal arm 11 and between the cab-side attachment points of the handlebar is predetermined. When the pedal is depressed, the upper pivot pin 16 of the pedal arm 11 thereby pivots first downward and forward towards the bulkhead 5 in a circular arc line, the center of which is in the shaft 15 , and at the same time the lower pivot pin 17 of the pedal arm 11 pivots downward and forward to the bulkhead 5 down in a Kreisbo gene line, the center of which is in the pivot pin 18 . The foot plate 12 follows the pivoting movements of the pivot pins 16 , 17 and thereby moves in a circular arc line to the driver's house floor 3 . When the foot plate 12 is pressed down, it will roll through the foot on the foot plate 12 , ie there is no sliding, and there is an ergonomically favorable movement process in the work area.

Even if the pedal arrangement according to the invention has been described above for use with an accelerator pedal, there is the possibility of using the pedal arrangement according to the invention for a clutch pedal or brake pedal, for example, by utilizing the movement of the first lever to actuate the clutch or the service brake. In these cases, it is also essential to achieve a tight seal on the wall of the cabin interior. In addition, there is the possibility to design the console 10 so that one or more pedals can be preassembled into a unit, which is then installed in a rational manner in the vehicle.

Reference list

Cab interior
2 vehicle
3 cab floor
4 engine cover
5 bulkhead
6 dashboard
7 fuel supply element
8 throttle cable
9 pedal arrangement
10 console
11 pedal arm
12 footplate
13 Upper handlebar
14 Lower handlebar
15 wave
16 cones
17 cones
18 cones
19 First lever
20 rod end
21 Second lever
22 return spring
23 spring eye
24 contact surface
25 mounting hole
26 mounting hole
27 housing
28 side wall
29 side wall
30 implementation
31 Implementation
32 bolts
33 mother
34 bearing bush
35 end region
36 flattening
37 recess
38 flattening
39 through hole
40 compression spring
41 stop
42 Implementation
44 fret
45 drive flange
46 stop

Claims (10)

1. Pedal arrangement for motor vehicles with a pedal ( 11 , 12 ) arranged in a cab interior ( 1 ), a console ( 10 ) arranged on a wall ( 5 ) of the interior ( 1 ), on which the pedal is mounted, a first lever ( 19 ) pivotably arranged on the bracket ( 10 ), which extends through the wall ( 5 ) and is mechanically connected to a component ( 8 ) arranged outside the interior ( 1 ) for its actuation, and a connecting element, which connects the first lever ( 19 ) to the pedal ( 11 , 12 ) and is arranged so that when the pedal ( 11 , 12 ) is actuated it causes a pivoting movement of the first lever ( 19 ), characterized in that the connecting element forms a link with the first lever ( 19 ) rigidly connected Wel le ( 15 ) and the console ( 10 ) comprises a housing ( 27 ) in which the shaft ( 15 ) is rotatably mounted in such a way that the housing the first lever ( 19th ) from the interior ( 1 ) and one Pivotal movement of the first lever ( 19 ) in the housing ( 27 ) allowed. 2. Pedal arrangement according to claim 1, characterized in that the connecting member comprises a second lever ( 21 ) which is rigidly connected to the shaft ( 15 ). 3. Pedal arrangement according to claim 1 or 2, characterized in that the housing ( 27 ) has at least one wall ( 28 , 29 ) with a passage ( 30 , 31 ) and that the shaft ( 15 ) is supported in this manner in this passage is that the wel le has an inner area which is located in the housing ( 27 ) and is thus shielded from the interior ( 1 ), and an outer area which is located outside the housing ( 27 ), the first lever ( 1 ) is rigidly connected to the inner region of the shaft and the second lever ( 21 ) is rigidly connected to the outer region. 4. Pedal arrangement according to one of the preceding claims, characterized in that the console ( 10 ) has a contact surface ( 24 ) which is provided for abutting the wall ( 5 ) when the console is attached to it, and in that the housing ( 27 ) is designed as a recess extending from the contact surface ( 24 ). 5. Pedal arrangement according to one of the preceding claims, characterized in that the housing ( 27 ) comprises two mutually opposite side walls ( 28 , 29 ) and that the shaft ( 15 ) in two coaxial, arranged in one side wall through guides ( 30 , 31 ) is stored. 6. Pedal arrangement according to claim 5, characterized in that the shaft ( 15 ) has two, through a bushing ( 30 , 31 ) extending shaft parts ( 15 a, 15 b), each of which is secured against rotation with the first lever ( 19 ) connected end region ( 35 ). 7. Pedal arrangement according to claim 6, characterized in that each end region ( 35 ) is conically shaped towards the end and that the first lever ( 19 ) has two recesses ( 37 ) of corre sponding conical shape that each end region ( 35 ) has a flat ( 36 ) and that the first lever ( 19 ) has two corresponding flats ( 38 ) which is arranged to bear against a flattened portion ( 36 ) of the end region ( 35 ) when the first lever ( 19 ) with the shaft ( 15 ) is connected to the fact that the shaft parts ( 15 a, 15 b) and the first lever ( 19 ) are held together with the aid of a bolt ( 32 ) guided through these parts, and that the one shaft part ( 15 a) has a second end region , which is connected to the second lever ( 21 ) to prevent rotation. 8. Pedal arrangement according to one of claims 2 to 7, characterized in that a suspension ( 40 ) between the pedal ( 11 , 12 ) and the second lever ( 21 ) is arranged to further movement of the pedal even when the end position of the lever is reached ( 19 , 21 ) to allow that the pedal ( 11 , 12 ) comprises a first len ker ( 13 ) connected to a foot plate ( 12 ) and for actuating the second handlebar ( 21 ) when the foot plate is depressed ( 12 ) is arranged, and that the suspension ( 40 ) between the first link ( 13 ) and second lever ( 21 ) is arranged, and comprises a compression spring. 9. Pedal arrangement according to claim 8, characterized in that the first link ( 13 ) on the shaft ( 15 ) is mounted, and that the pedal comprises a pedal arm ( 11 ) connected to the footplate ( 12 ), which has an upper and a lower bearing ( 16 , 18 ) is articulated to the first link ( 13 ) or to a second link ( 14 ) articulated on the bracket ( 10 ). 10. Pedal arrangement according to one of the preceding claims, characterized in that it is provided for an accelerator pedal, the member to be actuated comprises a supply member ( 7 ) connected to a fuel supply unit ( 7 ) for regulating the fuel supply to the engine ( 8 ).