AT510036A4 - CIRCUIT ARRANGEMENT FOR A MOTOR VEHICLE GEARBOX - Google Patents

Description

25 15:17:14 26-07-2010 S / 38 25 15:17:14 26-07-2010 S / 38

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The invention relates to a switching arrangement of a motor vehicle change gear and a change-speed gearbox, as described in the preambles of claims 1 and 13,

In manual transmissions of motor vehicles, the switching movement is transmitted from the manually operable lever in a Getriebeschaltdom on a switching shaft which is rotatable about its longitudinal axis and slidably mounted in the axial direction in a Schattdomgehäuse. On the switching shaft, a coaxially arranged around this barrier wall and at least one of this radially projecting shift finger (actuator) are provided. The shift finger can engage positively in a shift guide (shift recess) and transmit a shift movement from the shift shaft to a shift element, such as shift rocker or shift fork.

From EP 1 757 845 B1, a switching arrangement designated above is known which has a blocking body with a half-shell-shaped blocking wall arranged coaxially around the switching shaft and a wall part and sliding finger projecting radially from the latter. A first shift finger (actuating element) is placed on the outer circumference of the Spenwand and attached to this via a cohesive joint connection. A second shift finger (actuating element) is inserted into a recess in the barrier wall and connected thereto via a cohesive joint connection. In order to block non-switched aisles, the barrier wall forms a blocking surface on its outer periphery. This is interrupted by at least one subsequent to the second shift finger in the circumferential direction section for performing the switching operation. This known switching arrangement has the disadvantage that the barrier wall has to be formed with a radial reinforcement in order to be able to transmit the required shading forces via the shift fingers. N2010 / 15900 26 07 2010 MO 15:16 [SE / RM NR 88271 @ 005 25 15:17:28 26-07-2010 6/38

DE 10 2008 031 313 A1 discloses a switching arrangement which comprises a composed of a plurality of discs and with the switching shaft rotatably connected locking body and a fixed between adjacent discs shift finger {actuator). The switching shaft forms a polygonal cross-section and a breakthrough, so that the shift finger can be positively and rotatably connected to the shift shaft. This known switching arrangement is not only very complicated to manufacture, but is considerably weakened by the breakthrough of the viable cross section of the switching shaft.

Furthermore, from DE 10 2008 044 957 A1 discloses a switching arrangement is known, which has a switching shaft and a shift finger, wherein the shift shaft in the area of Schait-fingers (Betätigungsseiement) ausgebiidet as a switching plate and the shift finger is welded in a recess in Schaltbiech.

The invention has for its object to provide a Schaitanordnung that allows a simple and cost-effective production and can be transmitted with the high switching forces, The switching arrangement should be used in a Zahnräderwechselgqtriebe.

The object of the invention is solved by the features of claims 1 and 13. It is advantageous that the joining connections between the actuating element and the blocking wall on the one hand and the actuating element and the sound wave on the other hand lead to a stiffening of the blocking body and thus the blocking body can absorb high torsional and resistive moments. As a result, even with high switching forces from the actuating element to a switching element (eg, shift fork or rocker arm), the blocking body can be formed with a thin wall thickness. The locking body can be realized inexpensively with simple manufacturing processes, such as stamping and bending. Thus, a change-speed gearbox can be operated with high reliability and manufactured by simple means.

An advantageous embodiment is also described in claim 2. The shaft is applied against at least one of its opposite side faces in the pivoting direction of the actuating element against an edge or positioned in the recess such that one of its opposite side surfaces at a (small) distance of a few hundredths of a millimeter, for example about 0.1 mm, to the edge is arranged. and thus in the upper shaft region, a (lateral) joining region is formed between the shaft and the blocking wall, for example with an energy beam, in particular

N20KV159DD 28/07 2010 MO 15:16 ISE / EM NR 88271 0006 25 * · • · * · · · · · · · · · · · · * * * * * * «« Ί5: 17: 45 26-07-2010 7/38 -3-

Laser or electron beam, is easily accessible, so that the joint seam can be produced in a simple manner and with high quality. Another advantage is an embodiment, according to which the actuating element is connected in the upper shaft region via two joining seams with the barrier wall, so that high switching forces can be transmitted to a switching element in both pivoting directions. The shaft is applied with its opposite in the pivoting direction of the actuator side surfaces against the edges or positioned in the recess, that its opposite side surfaces each at a (small) distance of a few hundredths of a millimeter, for example, about 0.1 mm, to the edges are arranged, and thus in the upper shaft region on both sides of the shaft lying (lateral) joint areas between the shaft and the barrier wall are formed, which are easily accessible, for example, with an energy beam, in particular laser or electron beam, so that the joints on easy catfish and high Quality can be produced.

According to another embodiment, on the other hand, it is possible that the shaft is applied against at least one of its opposite in the sliding direction of the actuator side surfaces against an edge or positioned in the recess, that one of its opposite side surfaces each in a (small) distance of a few hundredths Millimeter, for example, about 0.1 mm, is arranged to the edge, and thus in the upper shaft portion a (distal) joining region between the shaft and the barrier wall is formed. It is also possible for the side surfaces opposite in the sliding direction to be applied against the edges or positioned in the recess such that their side surfaces are arranged at a (small) distance of a few hundredths of a millimeter, for example approximately 0.1 mm, to the edges are, and thus in the upper shaft region (distal) joining regions between the shaft and the barrier wall are formed. If the actuating element transmits particularly high switching forces, which are to be transmitted in the pivoting direction to a switching element, as well as selection forces which are to be transmitted in the sliding direction to a switching element, the shaft will be in a (lateral) joining zone and in a (distal) joining area or in both (lateral) joining areas and in both (distal) joining areas with the barrier wall.

According to the statements according to claims 3 to 5 an exact positioning of the actuating element in the radial direction and tangential to the sound wave is possible. If the actuating element is formed on the lower shaft region with a contact surface that is complementary to the outer circumference of the switching shaft, then the pivoting direction of the N2010 / 16900 26/07 2010 MO 15:16 [SE / EM NR 8827] 0007 25 25 8/38 15:18:05 26-07-2010

Actuator opposite edges of the shaft on the outer circumference of the shift shaft and form joining areas, in which the joint seams, in particular Kehinähte, can be made on easy catfish.

In the barrier wall cutouts (locking window) are formed, as described in claims 6 to 8. The cutouts lie within a plane perpendicular to the shift shaft radial plane and are each formed over a peripheral portion of the barrier wall. According to a first embodiment, the cutouts extend separately from each other, starting from the longitudinal edges of the barrier wall designed as a shell part parallel to a longitudinal axis of the blocking body in a circumferential direction over a peripheral portion of the barrier wall. According to a second embodiment, the cutouts extend separately from each other at a distance from the longitudinal edges of the barrier wall designed as a shell part parallel to a longitudinal axis of the blocking wall in a circumferential direction over a peripheral portion of the barrier wall. It is particularly advantageous if the recess and the cutouts lie within a radial plane extending perpendicular to the selector shaft, since on the one hand a very compact design of the switching arrangement is achieved and on the other hand, the joint areas between the shaft and the shaft shaft on both sides through the cutouts, for example with a E-nergies jet, in particular laser or electron beam, are easily accessible, so that joining seams can be made with high quality.

According to claim 9, the blocking body is placed over a radially extending to the Spenwand wall portion on the shift shaft and fixedly connected in a formed between the wall part and the switching shaft joint area with the Schaitwelle. As a result, an exact positioning of the locking body in the radial direction and tangential to the shaft shaft is made possible. The wall part can be made either in one piece with the barrier wall in the punching and bending process or as a separate component, which is connected to the barrier wall via a materialschiüssige joint connection.

The functionality of the switching arrangement is extended by the embodiments according to claims 10 and 11. Also, the switching and selection function is safely gestgestifted by the arrangement of a detent body on the Schaitwelle.

An advantageous arrangement of the locking and locking body is described in claim 12.

The switching arrangement is characterized very compact and has a high rigidity even with a small wall thickness of the locking and locking body and disc. N2010 / 15900 26/07 2010 MO 15:16 [SE / EM NR 88271 ®008 15 18:23 26-07-2010 9/38 25 .. .. .. .. .. 1 · * ♦ ···· · ?? »« * * * * «♦ · * * ·· * · ·· * # * * -5-

For a better understanding of the invention, this will be explained in more detail with reference to the following figures.

Each shows in a highly schematically simplified representation:

1 shows a first embodiment of the switching arrangement according to the invention for a motor vehicle change gear in a perspective view. FIG. 2 shows the switching arrangement according to FIG. 1 in a first side view; FIG. FIG. 3 shows the switching arrangement according to FIG. 1 in a second side view; FIG. 4 shows the circuit arrangement cut along the lines IV-IV in FIG. 3 and a switching element cooperating with the switching arrangement; 5 shows a blocking body of the switching arrangement according to the first embodiment; 6 shows the Schaitanordnung of Figure 1 in plan view ..; Fig. 7 shows the circuit arrangement cut along the lines VII -VII in Fig. 6; 8 shows a second and third embodiment of the switching arrangement according to the invention for a motor vehicle change gear in a perspective view. FIG. 9 is a perspective view of the switching arrangement according to FIG. 10 shows a first embodiment variant of an actuating element of the switching arrangement according to the second embodiment in a first end view; 11 shows a first embodiment variant of an actuating element of the switching arrangement according to the second embodiment in a second end view; 12 shows a second embodiment of an actuating element of the switching arrangement according to the third embodiment in a second end view.

By way of introduction, it should be noted that in the differently described embodiments, the same parts are provided with the same reference numerals or identical component names, wherein the disclosures contained in the entire description can be mutatis mutandis to the same parts with the same reference numerals or same component designations. The position selected in the description is also N2D10 / 15900 26/07 2010 MO 15:16 [SE / EM NH 8827] ®009 25 25 10/38 15:18:36 26-07-2010 * f »14« · i * * * -6- information, such as, up, down, side, etc. related to the immediately described and illustrated figure and are mutatis mutandis transferred to the new situation in a change in position.

In the jointly described FIGS. 1 to 7, a first embodiment of a circuit arrangement 1 according to the invention of a manually switchable motor vehicle change gear is shown. The switching arrangement 1 according to this embodiment comprises a switching shaft 2 which is rotatable about its longitudinal axis 3 and slidably mounted in the axial direction in a Schaltdomgehäuse 4, a locking body 5, an approximately cylindrical locking body 6 (Rastterungshülse) and a radially projecting on the shadow shaft 2 actuator 7. The locking and locking body 5, 6 are arranged coaxially on the shift shaft 2 and fixedly connected thereto. The switching shaft 2 is made for example of solid material. The actuating element 7 is preferably designed as a shift finger and engages in a switching recess 6 of a in Fig. 4 in dotted lines in sections illustrated switching element 9, such as shift fork or rocker arm a form fit. The switching element 9 protrudes with at least one transmission arm in a Ringkanaf a sliding sleeve, not shown, of the transmission before and transmits a switching movement to the Schtebemuffe. Usually, an actuating element 7, a plurality of switching elements 9, for example, three switching elements 9, assigned, which are selectively actuated depending on the axial position of the switching shaft 2 of the actuating element 7.

A motor vehicle change gearbox has several gear stages. A switching element 9 can preferably switch two gear stages. If the change gear is a 5-speed transmission, it is possible to change between the first and second gear stage via a first shift element and between the third and fourth gear step via a second shift element and between the fifth gear step and the reverse gear (R) via a third shift element. The number of switching elements thus varies depending on the number of gear stages to be switched.

The Schaltwefle 2 has at its upper end a fastening device 10 for a switching mechanism, not shown, via which a switching and selection movement of a manual shift lever, not shown, is transmitted to the shift shaft 2.

A selection movement for selecting a shift gate, for example for the shift lanes 1/2, 3/4, 5 / R, takes place within a selection lane by shifting the shift shaft N2010 / 1S900 20/07 2010 MO 15:10 [SE / EM NR 88271® 010 25 15:18:53 26-07-2010 11/38 «* * *« · · · · · · · · «« · · · · · ♦ · ** «· * · * *« · Along the longitudinal axis 3. The switching movement takes place in a shift gate by a rotation of the control shaft 2 about the longitudinal axis 3.

The latching body 6 has a latching contour, which forms a selection contour 11 and switching contour 12. According to the embodiment shown, the Wählkontur 11 and switching contour 12 are separated from each other and formed approximately diametrically opposite to the outer periphery of the locking body 6. The Wählkontur 11 has in the axial direction of the locking body 6 with different angular inclination to the longitudinal axis 3 formed dial surfaces 13. The Schaitkontur 12 extends in the direction of the longitudinal axis 3 and has in the circumferential direction of the detent body 6 with different radial distances from the longitudinal axis 3 formed buttons 14.

The Wählkontur 11 and switching contour 12 are in operative connection with locking devices 15, 16. The locking devices 15, 16 generate forces on the Schaltweile 2, which act in the direction of the longitudinal axis 3 and in the circumferential direction of the longitudinal axis 3 and thereby lock a switched gear.

The not shown detent devices 15,16 each have a slider which is slidably and resiliently connected to a housing of Rastvomchtungen 15, 16. The slider is formed, for example, as with the selection and switching contour 11, 12 in engagement, in particular rolling contact locking ball. The housing of the locking devices 15, 16 is fixedly connected to the Schaitdomgehäuse 4 of the transmission.

In a shift (selection movement) of Schaltwelie 2, the detent ball of the locking device 15 slides along the selection contour 11 for selecting one of a plurality of shift gates. During a rotation {switching movement) of the switching shaft 2, the detent ball of the locking device 16 slides along the switching contour 12 in the voting plane.

The locking body 6 has in addition to the selection and Schaitkontur 11,12 in addition to a continuous through its wall thickness formed Schaltkulisse 20, which upper an adjusting movement or an adjustment of the shift shaft 2 in the axial direction and direction of rotation is limited. The shift gate 20 is shown embodiment for a 5-speed reverse gearbox and has a selector gate and branching from this (three) shift lanes, namely one for the 1st and 2nd gear, one for the 3rd and 4th gear , one for 5th gear and reverse gear. N2010 / 15900 26/07 2010 MO 15:16 ISE / EM NR 8827) @ 011 25 25 12/38 15:19:09 26-07-2010

The shift dome housing 4 is equipped with a stationary guide pin 22 (FIG. 1) extending radially to the shift shaft 2, which protrudes through the shift gate 20 and whose ends are fixed in the shift dome housing 4. In a Relatiwerlagerung between the shift shaft 2 and the shift dome housing 4, the fixed ball-senstift 22 in each of the slotted slots (shift lanes) and guided by this move.

In a preferred embodiment, the locking body 6 consists of at least two shell parts 23, 24, which are each made of thin sheet steel by stamping and forming, in particular cold forming, such as bending, pressing and the like., Are produced without cutting. The shell parts 23, 24 are already made with the finished size, so that post-processing can be omitted. The prefabricated shell parts 23, 24 are connected to one another by means of beam welding, in particular electron beam welding or laser welding, joint seams 25 and / or with a disk to be described later. The Wählkontur 11 is in a about 90 ° relative to the shift gate 20 in a first direction offset circumferential portion of the detent body 6 on the first shell part 23 and the switching contour 12 in an offset by about 90 ° relative to the shift gate 20 in a second direction peripheral portion of the detent body. 6 formed on the second shell part 24.

As can be seen in the figures, the latching body 6 is further provided with a switching contour 26. This is on one of the shell parts 23, 24 by forming, in particular cold forming, such as bending, pressing and the like., Produced without cutting and cooperates with a reverse switch 27, in particular a capacitive sensor together. The reverse switch 27 is fixedly arranged on the shift dome housing 4 as dargestelit in Fig. 1.

The shift assembly 1, as shown in more detail in Figs. 6 and 7, also has a reverse lock 28, which is required when a fifth forward gear and reverse are in a common shift gate and thus there is a risk that when switching back from the 5th gear is engaged in reverse. Thus, the reverse lock 28 serves to avoid false circuits. The reverse lock 28 has a via a spring element 29 on the locking body 6 in opposite directions pivotally mounted pawl 30 which projects into the shift gate 20 and a direct downshift from a 5th forward gear in the opposite in the same shift gate reverse (R) prevented. N2010 / 15900 26/07 2010 MO 15:16 ISE / EM NR 8S27J © 012 25 1S: 19: 27 26-07-2010 13/38

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On the other hand, when switching from a neutral position into the common shift gate of the 5th forward and reverse gear, the pawl 30 pivots against the spring force and the entry of the guide pin 22 (not shown) either in the position of the 5th forward gear or the reverse gear in Approved.

The pawl 30 has a guide body 31 and a support body 32. The cam-shaped guide body 31 forms in a first circumferential section a first guide slot 33 (FIG. 2), by means of which, when shifting from a fifth forward gear into the fourth forward gear located in a staggered shift gate, the guide pin 22 slides along. The guide body 31 forms in a second circumferential section adjoining the first peripheral section a second guide slot 34 (FIG. 2), by means of which, when shifting from a neutral position into the reverse gear, the guide pin 22 slides along. The third peripheral section connecting the first and second peripheral sections forms a circular-arc-shaped bearing surface 35, which is slidably supported against a bearing receptacle 36 on the detent body 6. The support body 32 has a support member 37 projecting radially on the guide body 31 and connected thereto, which is received in sections in a trained by a portion of the spaced in the reverse lock 28 at a mutual distance shell parts 23, 24 support receptacle and thus the pawl 30 ü About the support plate 37 between guide surfaces 38, 39 of the shell parts 23, 24 is held in a form-fitting manner in the radial direction to the shift shaft 2. The support plate 37 forms in a peripheral portion such a shaped support surface 40 for the spring element 29, that the guide body 31 is resiliently moved in a projecting into the common shift gate starting position.

The shell parts 23, 24 are kept at a distance, for example, by means of a nose 41 radially formed in the region of the reverse gear lock 26 from one of the shell parts 23, 24. As shown in the figures, a surface portion of the shell part 24 is supported by the nose 41 on a surface portion of the shell part 23.

For spring loading of the pawl 30, the spring element 29 is provided, which is formed for example by a helical spring. The helical torsion spring is mounted on a latching body 6 and secured by punching and uniforms, in particular cold forming, such as bending, pressing and the like. N2D10 / 15900 26/07 2010 MO 15:16 [SE / EM NR 8827] @ 013 25 25 14/38 15:19:44 26-07-2010

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Oas first spring end 43 of the helical spring is applied to the support plate 37 against the support surface 40 with bias. The second spring end 44 of the helical spring is fixed in a bore 45 in a disc 51.

As described above, the switching arrangement 1, the disc 51, which bridges a radial distance to the, the shift shaft 2 coaxially enclosing locking body 6 and is arranged on the shift shaft 2 in the axial direction between the locking and locking body 5, 6. According to the embodiment shown, the disc 51 is produced separately from the locking body 6 and thin steel sheet by punching without cutting. On the other hand, it is also possible that the disc 51 is made in one piece with the locking body 6 and the shell parts 23, 24. The prefabricated disc 51 is fixedly connected to the selector shaft 2 by means of beam welding, in particular electron beam welding or laser welding, raised joining seams 52. The joint seams 52 form a substance-flush joint connection.

The switch assembly 1 further includes a neutral-detection switching element 53 for triggering start / stop or other functions.

The Schaitelement 53 is made of thin sheet steel by punching and uniforms, in particular cold forming, such as bending, pressing and the like., Produced chipless and fixed as a prefabricated component via beam welding, in particular electron beam welding or laser welding, seams 54 firmly connected to the switching shaft 2.

The joint seams 54 form a fluid joining connection.

A wall thickness of the locking body 5, the shaft parts 23, 24, the disc 51 and the switching element 53 is in each case between 2 mm and 3 mm. The shell parts 23, 24 and the Schaitelement 53 are each made of 16MnCr5 (EN10084), for example. The blocking body 5 and the disk 51 are made of HC380 (EN 10268), for example. When selecting the material, it must also be adapted to the different applications, taking into account its suitability for welding together with the requirements for forming or hardening.

In Fig. 5 the locking body 5 is shown in more detail. The blocking body 5 designed as a half shell has a cylindrical blocking wall 56 extending coaxially with the switching shaft 2 (FIGS. 1-3) and extending in the axial direction and a wall part 57 extending radially to the blocking wall 56. The one-piece locking body 5 is made of thin sheet steel by punching and forming, in particular cold forming, such as bending, pressing and the like, without cutting N2010 / 15900 26/07 2010 MO 15:16 [SE / EM NR »827) 0014 11-25 15 : 20: 01 26-07-2010 15/38 made. The barrier wall 56 forms on its outer periphery a blocking surface 58, which is interrupted by window-like cutouts 59 in the barrier wall 56. The starting from longitudinal edges 60 in the circumferential direction converging cutouts 59 can be made by punching or cutting. The cylindrical blocking surface 58 serves to block non-switched gears or switching elements 9 (FIG. 4). The cutouts 59 are used to carry out the shading process, in particular tine-like projections 61 of a fork-shaped driver of a switching element 9 (FIG. 4) can alternately engage in the cutouts 59.

The projections 61 limit the open mouth Schaltausnehmung 8 for the engagement of the actuating element 7 {shift finger). The switching recess 8 is partially limited by opposing and mutually facing stop and buttons 62, 63.

The stop surfaces 62 are arcuate and complementary to the blocking surface 58 is formed. The buttons 63 are aligned plane-parallel to each other. The clear distance between the buttons 63 is slightly larger than a width of an actuating head of the actuating element 7, so that it can be accommodated between the buttons 63 when the switching shaft 2 has been positioned with the actuating element 7 relative to the driver,

By a switching movement within a shift gate, the axiai positioned in the Schaltstel-iung switching shaft 2 is rotated about its longitudinal axis 3, so that the actuator 7 runs depending on switching to gear either against the left or right button 63 and the driver or one of the switching elements relative to the Schaltwel-ie 2 moves in a direction approximately perpendicular to their switching level. While one of the switching elements 9 can be switched in the switching position, the other switching elements are blocked in a blocking division of the blocking surface 58 against switching movements, in the show position of a Schaiteiementes die the prong-like projections 61 of the fork-shaped driver can engage in the cutouts 59, the Anschiagflächen 62 form a stop for the blocking body 5 in a blocking division of the other switching elements. 5

In addition, as can be seen in FIG. 5, the blocking body 5 has a recess 64 in the half-shed-shaped blocking wall 56 between the cutouts 59 extending over a partial section in the circumferential direction. The recess 64 is defined by edges 65 N2010 / 15900 26/07 2010 MO 15:16 (SE / EM NR 8827] ®015 25 15: 20.19 26-07-2010 16/38 25 15: 20.19 26-07-2010 16 / 38

- 12- limited alseg and extends over the entire material wall thickness of the barrier wall 56. Preferably, the cutouts 59 and the recess 64 are within a radial plane. However, the recess 64 can also be arranged offset axially relative to the cutouts 59. The recess 64 can be made by punching or cutting.

In the wall portion 57, a recess 66 is formed, within which the switching shaft 2 is partially received The recess 66 is bounded by a to the outer periphery of the switching shaft 2 partially complementary trained contact surface 67, with which the locking body 5 is placed on the shift shaft 2. The recess 66 can be made by punching or cutting.

The barrier wall 56 forms a wall surface 57 in the axial direction opposite bearing surface 68, with which the locking body 5 against the disc 51 or an end face of the locking body 6 can be applied.

As can be seen in FIG. 4, the actuating element 7 has a shaft 69 and an actuating head 70 connected thereto. The shaft 69 preferably has an approximately rectangular or square cross-section and forms adjacent to the edges 65 in the circumferential direction of the barrier wall 56 adjacent side surfaces 71. A width of the shaft 69 is tangential to the circumference of the switching shaft 2 is smaller than the diameter of the Schaltwelie. 2

The shaft 69 has, at its lower shaft region 72, which is opposite the actuating head 70, a contact surface 73 that is complementary at least in sections to the outer circumference of the shadow shaft 2.

The actuating element 7 protrudes with the shaft 69, the recess 64 and is produced by beam welding, in particular electron beam welding or laser welding, joint seams 74 at its lower shaft portion 72 with the Schaltweile 2 and via beam welding, in particular electron beam welding or laser welding, produced joining seams 75 at its upper Shank portion 76 connected to the barrier wall 56. The joint seams 74, 75 form a fluid joining connection.

The barrier wall 56 is applied with the abutment surface 68 against the disc 51 or an end face of the detent body 6 and via seams 77 produced by radiation welding, in particular electron beam welding or laser welding with the disk 51 N201G / 15900 26/07 2010 MO 15:16 fSE / EM NR 8827] ®016 - 13- 25 - 13- 25 17/38 15:20:35 26-07-2010 or the locking body 6 firmly connected. The joining seams 77 form a fluid joining connection. The blocking body 5 is placed on the wall part 57 with the contact surface 67 on the switching shaft 2 and firmly connected by beam welding, in particular electron beam welding or laser welding, seams 78 with the switching shaft 2. The joining seams 78 form a fluid joining connection.

The disc 51, which in turn is fixedly connected via the joining seams 52 with the switching shaft 2, is firmly connected to the latching body 6 by means of beam welding, in particular electron beam welding or laser welding, produced joining seams 79. The joining seams 79 form a fluid joining connection.

In a preferred embodiment, the blocking body 5 is made in one piece from thin sheet steel by punching and forming, in particular KaJtumformung, such as grooving, pressing and the like., Are produced without cutting.

According to another, not shown embodiment of the wall portion 57 and the barrier wall 56 can be made separately from each other and joined together by a beam welding, in particular electron beam welding or laser welding, joint connection to the locking body 5.

The joining seams described above may alternatively be formed by adhesive or soldered seams to the welds.

In the Flg. FIGS. 8 to 12 show a further embodiment of the switching arrangement, which may be independent of itself, wherein the same reference numerals or component designations are again used for the same parts as in the preceding FIGS. 1 to 7. The figures show further embodiments of the switching arrangement 80, 81 according to the invention of a manually switchable motor vehicle change gear. The switching arrangement 80, 81 comprise, according to this embodiment, a common control shaft 82, which is rotatable about its longitudinal axis 83 and slidably mounted in the axial direction in a Schaltdomgehäuse 84.

The switching assembly 80 includes a locking body 85, a locking body 86 (Rastie-rungshülse) and an on the switching shaft 82 radially projecting actuator 87, According to the embodiment shown, the approximately cylindrical locking body 86, the locking body 85, wherein the locking and locking body 85, 86 are formed from at least two shell parts 88, 89, each made of thin sheet steel by punching and forming, N2010 / 15900 26/07 2010 MO 15:16 [SE / EM NR 8827] El 017 25 • · «« · * «· · 15 : 20: 52 26-07-2010 18/38 -14- especially cold forming, such as bending, pressing and the like., Are produced without cutting. The shell parts 88, 89 are already made with the finished size, so that post-processing can be omitted. The prefabricated shell parts 88, 89 are connected to one another via joining seams 90 produced by beam welding, in particular electron beam welding or laser welding, and / or to the actuating element 87, in particular a support disk 91, which will be described in detail later.

The latching body 86 has a latching contour, which forms a selection contour 92 and switching contour 93. After shown embodiment, the Wählkontur 92 and Schaitkontur 93 are separated from each other and formed approximately diametrically opposite to the outer periphery of the locking body 86. The Wählkontur 92 has in the axial direction of the locking body 86 with different angular inclination to the longitudinal axis 83 formed on selector surfaces. The switching contour 93 extends in the direction of the longitudinal axis 83 and has in the circumferential direction of the detent body 88 at different radial distances from the longitudinal axis 83 formed buttons.

The Wählkontur 92 and switching contour 93 are in operative connection with not shown, described above locking devices. During a displacement (selection movement) of the switching shaft 82, the detent ball of the first detent device slides along the selection contour 92 for selecting one of a plurality of shift gates. During a rotation (switching movement) of the switching shaft 82, the detent ball of the second detent device slides along the switching contour 93 in the voting plane.

The locking body 86 has, in addition to the selection and switching contour 92, 93 in addition to a continuously formed by its wall thickness shift gate 96, via which an adjustment or a displacement of the shift shaft 82 is limited in the axial direction and direction. The shift gate 96 is shown embodiment for a 6-speed change gear with reverse gear and has a selector gate and branching from this (four) shift lanes, namely one for the 1st and 2nd gear, one for the 3rd and 4th gear , one for the 5th and 6th gear and one for the reverse gear.

The shift dome housing 84 is equipped with a location-fixed linkage 97 (FIG. 8) extending radially to the shift shaft 2, which protrudes through the shift gate 96 and whose ends are fixed in the shift dome housing 84. In a relative displacement between the switching shaft 82 and the gearshift housing 84, the fixed linkage 97 97 can move in each of the Kulrssenschlitze (shift lanes) and guided by this. N2010 / 15900 26/07 2010 MO 15:16 [SR / EM NR 8827] @ 018 25 15.21: 09 26-07-2010 19/38

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The Wählkontur 92 is in a about 90 ° relative to the shift gate 96 in a first direction offset circumferential portion of the detent body 86 on the first shell part 88 and the switching contour 93 in about 90 ° relative to the shift gate 96 in a second direction offset circumferential portion of the detent 86th formed on the second shell part 89.

Registered as in FIGS. 8 and 9, the substantially half-shell-shaped locking body 85 forms a coaxial with the switching shaft 82 and extending in the axial direction, cylindrical barrier wall 98. According to this embodiment, a first barrier wall portion of the first shell portion 88 and the second barrier wall portion of the second shell portion 89 is formed. The blocking wall 98 or the barrier wall sections form on their outer circumference a blocking surface 99, which is interrupted by a circumferentially extending, window-like recess 100 in the barrier wall 98.

The actuating element 87 is disposed within the recess 100, as will be described in more detail, and defines on both sides thereof formed, window-like cutouts 101. The recess 100 may be made by punching or cutting. The cylindrical blocking surface 99 is used to block non-switched gears or switching elements. The cutouts 101 serve to carry out the switching operation, in particular tine-like projections 61 of a fork-shaped driver of a switching element 9 (FIG. 4) can alternately engage in the cutouts 100.

The stop surfaces 62 are arcuate and complementary to the blocking surface 99 is formed. The buttons 63 are aligned plane-parallel to each other. The clear distance between the buttons 63 is slightly larger than a width of an actuating head of the actuating element 87, so that it can be accommodated between the buttons 63 when the switching shaft 82 has been positioned with the actuating element 87 relative to the driver.

By a switching movement within a shift gate axially positioned in the switching position shift shaft 82 is rotated about its longitudinal axis 83, so that the Actuate supply section 87 depending on switching to gear either against the left or right button 63 runs and the driver or one of the switching elements moved relative to the switching shaft 82 in a direction approximately perpendicular to their switching level. While one of the switching elements 9 can be switched in the switching division, the other switching elements are blocked in a blocking division of the blocking surface 99 against switching movements. In the switching position of a switching element 9, the Ν2Ο1Ο / 15Θ0Ο 2 fc > / 0 7 2010 MO 15:18 [SE / EM \ R 8827] 12) 019 25 15:21:28 26-07-2010 20/38

- 16- tine-like projections 61 of the fork-shaped driver in the cutouts 101 engage. The stop surfaces 62 form a stop for the blocking body 85 in a blocking division of the other switching elements.

The window-like recess 100 is bounded on all sides by edges 102 and extends over the entire material wall thickness of the barrier wall 98. The recess 100 can be produced by punching or cutting. Within the recess 100, the actuating element 87 is arranged.

The multi-part actuating element 87, as shown in different views in FIGS. 10 and 11, comprises the support disk 91, a shaft 104 and an actuating head 105 connected thereto. The shaft 104 and actuating head 105 are integrally formed. The support plate 91 is made separately from thin sheet steel by punching and optionally converters in particular cold forming, such as bending, pressing and the like., Made without cutting. The support disk 91 is provided with a recess 106, within which the shift shaft 82 is partially received. The recess 106 is bounded by a portion of the outer surface of the switching shaft 82 sections complementary bearing surface 107, via which the support plate 91 can be placed on the shaft shaft 82. The recess 106 can be made by punching or cutting.

Further, the support plate 91 at least one contact surface 108, which at least partially complementary to the contour, in particular an inner circumference, the latching and / or locking body 85, 86 is formed.

The prefabricated support disk 91 is in turn connected to the latching and locking body 85, 86 by means of beam welding, in particular electron beam welding or laser welding, with the shaft 104 and / or joining seams 110 with the sound wave 82 and / or joining seams 111.

The actuating element 87 projects through the recess 100 with the shank 104 and is via joining seams 112 produced by beam welding, in particular electron beam welding or laser welding, at its lower shaft region 113 with the switching shaft 82 and via joining seams 109 produced by beam welding, in particular electron beam welding or laser welding, at its upper end Shank portion 114 connected to the barrier wall 98 with intermediate arrangement of the support plate 91. N2010 / 15900 26/07 2010 MO 15:16 [SE / EM NR 8827] ®020 25 15:21:44 26-07-2010 21/38 -17-

The joint seams 90, 109, 110, 111, 112 each form a fluid connection joint. The described joint seams may alternatively be formed by adhesive or soldered seams to the welds.

As registered in FIG. 9, the switching arrangement 81 comprises exclusively a blocking body 115 and an actuating element 116 projecting radially on the switching shaft 82.

The blocking body 115 is formed by a shell part and made of thin sheet steel by punching and forming, in particular cold forming, such as bending, pressing and dgt., Made without cutting. The shell part is already made with the finished size, so that post-processing can unfold.

The substantially halbschalenförmtge locking body 115 has a coaxial with the sound wave 82 and extending in the axial direction, cylindrical barrier wall 117. The blocking wall 117 forms on its outer circumference a blocking surface 118, which is interrupted by window-like cutouts 119 in the blocking wall 117

The circumferentially converging cutouts 119 can be made by punching or cutting. The cylindrical locking surface 118 is used to block non-switched gears or switching elements. The cutouts 119 serve to carry out the switching operation, in particular tine-like projections 61 of a fork-shaped driver of a switching element 9 (FIG. 4) can alternately engage in the cutouts 119, as described above.

In addition, the blocking body 115 has in the half-shell-shaped blocking wall 117 between the recesses 119 extending over a partial section in the circumferential direction, a recess 120 extending in the axial direction and opened in the direction of an end face of the blocking wall 117. The recess 120 is bounded by edges 121 and extends over the entire material wall thickness of the barrier wall 117. The recess 120 can be made by punching or cutting.

The one-piece actuating element 116, as shown in FIGS. 9 and 12, comprises a shaft 122 and an actuating head 123. The shaft 122 forms a support section 124. The actuating element 116 is produced by punching and forming, in particular cold forming, such as bending, pressing and the like., Without cutting. The support portion 124 is provided with a recess 125, within which the shift shaft 82 is partially received. The recess 125 is delimited by a bearing surface 126 which is formed in sections complementarily to the outer circumference of the switching shaft 82, N2010 / 15900 26/07 2010 MO 15:16 1SE / EM NR 8827] @ 021-18 25-18 25 22/38 15:22: 02 26-07-2010 over which the actuator 116 can be placed on the shift shaft 82. The recess 125 can be made by punching or cutting.

The actuating element 116 projects through the recess 122 with the shaft 122 and is via joining seams 127 produced by beam welding, in particular electron beam welding or laser welding, at its lower shaft region 128 with the switching element 82 and via joining seams 129 produced by beam welding, in particular electron beam welding or laser welding, at its upper end Shank portion 130 connected to the scarf wall 117. The support section 124 is additionally connected to the barrier wall 117 by means of beam welding, in particular electron beam welding or laser welding, at its lower shaft region 128. The joint seams 127,129,131 form a substance-rich joint connection. The joining seams described above may alternatively be formed by adhesive or soldered seams to the welds.

A wall thickness of the blocking body 85, latching body 86 or the shell parts 86, 89, of the blocking body 115 is in each case between 2 mm and 3 mm and are in each case made of 16MnCr5 (EN10084),

Finally, it should be pointed out that the switching arrangement 1; 80; 81 with one or more switching elements 9, in particular shift forks or shift rockers, such interaction can, that during a rotational movement of the shift shaft 2; 82, the actuator 7; 87; 116 is rotated while one of a plurality of switching elements 9 is moved so that this actuated switching element 9 transmits a switching movement to a sliding sleeve of the transmission for shifting a gear.

Preferably, all joint connections, described above and realized by beam welding, are produced without additional material.

The embodiments show possible embodiments of the switching arrangement, it being noted at this point that the invention is not limited to the specifically illustrated embodiments thereof, but also various combinations of the individual embodiments are possible with each other and this variation possibility due to the teaching of technical action by representational Invention in the skill of those skilled in this technical field.

So there are also all conceivable design variants, which by combinations N2010 / 15900 26/07 2010 MO 13:16 ISE / EM NR 88271 ®022 25 15:22:19 26-07-2010 23/38 · · · · t «· • · · I 1 tt 9 «i ^ B, |

"M - 19-individual details of the illustrated and described embodiment variant are possible, including the scope of protection.

For the sake of order, it should finally be pointed out that in order to better understand the structure of the switching arrangement, these or their components have been shown partially unevenly and / or enlarged and / or reduced in size.

Above all, the individual embodiments shown in FIGS. 1 to 12 can form the subject of independent solutions according to the invention. N2010 / 15900 26/07 20) 0 MO 15:16 fSE / EM NR 8827] @ 023 15:22:57 26-07-2010 27/38 15:22:57 26-07-2010 27/38

I | | | ** · »*

REFERENCE NUMBERS

Schaitanordnung

Switch shaft longitudinal axis

gearshift tower

blocking body

latching body

actuator

switching recess

switching element

Fixing device selection contour

Switching contour selection area

button

locking device

locking device

shift gate

link pin

shell part

Shell part joint seam

Switching contour reverse gear reverse gear lock

spring element

Pawl guiding body

Support body Guide slot Guide slot

storage area

bearing seat

Support plate guide surface guide surface

Support surface 41 Nose 42 Retaining pin 43 Spring end 44 Spring end 45 Bore 46 47 48 49 50 51 Disc 52 joining seam 53 switching element 54 joining seam 55 56 blocking wall 57 wall part 58 blocking surface 59 cutout 60 longitudinal edge 61 projection 62 stop surface 63 button 64 recess 65 edge 66 recess 67 contact surface 68 Contact surface 69 Shank 70 Actuator head 71 Side surface 72 Shank region 73 Contact surface 74 Joining seam 75 Joining seam 76 Shank region 77 Joining seam 78 Joining seam 76 Joining seams N201Q / 15900 26/07 2010 MG 15:16 [SH / RM KR 8827] © 027

15:23:07 26-07-2010 28/38 ί) • L -f- • · ·

switching arrangement

Switch shaft longitudinal axis

gearshift tower

blocking body

Catching element Operating element Shell part Shell nteli joining seam

Support disk selection contour

Switching contour 121 Edge 122 Shaft 123 Actuator head 124 Support section 125 Recess 126 Aniagefiäche 127 Joining seam 128 Shank area 129 Joining seam 130 Shank area 131 Joint seam

shift gate

link pin

barrier wall

blocking surface

recess

neckline

edge

shaft

actuating head

recess

contact surface

Contact surface Joint seam Joint seam Joint seam Shank area Shank area Locking body

actuator

barrier wall

blocking surface

neckline

Recess N2010 / 15900 20/07 2010 MO 15:16 [SE / EM SR 8827] ®028

Claims (13)

25 15:22:24 26-07-2010 24/38 - 1 - Claims 1. Switching arrangement (1; 80; 81) of a motor vehicle change gear having a switching shaft (2; 82) which is pivotable and / or longitudinally displaceable in a housing (4; 84) and a blocking body {5; 85; 115) and a radially projecting actuating element (7; 87; 116) for moving a switching element (9), wherein the blocking body (5; 85; 115) has a blocking wall (56; 98; 117), characterized in that the blocking body (5; 85; 115) in the barrier wall (56; 98; 117) has a recess (64; 100; 120) which extends from a shaft (69; 104; 122) of the shaft The actuating element (7; 87; 116) can be actuated via a fluid joining connection on its first shaft region (72; 113; 128) relative to the control shaft (2; 82) and second shaft region (76; 114, 130) is fixed relative to the barrier wall (56; 98; 117). 2. Switching arrangement according to Claim 1, characterized in that the actuating element (7; 87; 116) has at least one of the edges (64; 100; 120) delimiting edges via a fluid joining connection on its second shaft region (76; 114; (65; 102; 121). 3. Switching arrangement according to claim 1, characterized in that a width of the shaft (69; 104; 122) in the first shaft region (72; 113; 128) tangential to the circumference of the switching shaft (2; 82) is smaller than the diameter of the control shaft ( 2, 82). 4. Switching arrangement according to claim 1, characterized in that the shaft (69; 104; 122) with its front end in the first shaft region (72; 113; 128) on the outer circumference of the switching shaft (2; 82) is placed. 5. Switching arrangement according to claim 1 or 4, characterized in that the shaft (69; 104; 122) in the first shaft region (72; 113; 128) has at least one of N 1510/15900 26/07 2010 MO 15:16 fSE / RM NR 8827] @ 1024 25 15:22:38 26-07-2010 25/38 -2-way to the outer circumference of the selector shaft {2; 82) has complementary abutment surfaces (73, 107, 126). 6. Switching arrangement according to Claim 1, characterized in that the blocking wall (56; 98; 117) furthermore has cutouts (59; 101; 119) for carrying out a switching operation of the switching element (9). 7. Switching arrangement according to claim 6, characterized in that the cutouts (59, 119) extend apart from one another in the circumferential direction of the blocking wall (56; 117) and the recess (64; 100; 120) extends between the cutouts (59; 119) , 8. A circuit arrangement according to claim 6, characterized in that the recess (64) and the cutouts (59) lie within a perpendicular to the switching shaft (2) extending radial plane. 9. Switching arrangement according to claim 1, characterized in that the blocking body (5) via a radially to the blocking wall (56) extending wall portion (57) on the switching shaft (2) is fixed. 10. Switching arrangement according to Claim 1, characterized in that a latching body (6, 86) for securing the adjustment positions, in particular limitation of the adjustment path of the switching shaft (2, 82), is arranged on the shunt shaft (2, 82) and has a fluid connection joint relative to it Switching shaft (2; 82) is fixed. 11. Schaitanordnung according to claim 10, characterized in that the latching body (6; 86) is formed by a Schaitweile (2; 82) coaxially enclosing separate Rastierungshülse or by the blocking body (85). 12. Switching arrangement according to claim 10 or 11, characterized in that the blocking body (5) and the latching body (6) on the Schaitweile (2) are arranged one behind the other in the axial direction, wherein between the locking and locking body (5, 6) a Washer (51) is provided, which with a the blocking body (5) facing Stir- N2Q10 / 15900 26/07 2010 MO 15:16 [SE / EM NR 8827] 0025 25 26 ^ 38 26-07-2010 15:22: 51 3- end of the locking body {6) connected via a fluid joining connection and in turn is set via a material-fluid joint connection relative to the shaft shaft (2). 13. A change-speed gearbox, in particular for a motor vehicle, having a switching arrangement (1; 80; 81) and at least one switching element (9), in particular a shift fork or rocker arm, for transmitting a switching movement to a sliding sleeve, characterized in that the switching arrangement (1; 81) according to any one of claims 1 to 12 is formed. STIWA Holding GmbH Lawyers Citizen & Partner Attorney at Law N2010 / 15900 26/07 2010 MO 15:16 ISE / EM NR 8827] @ 026