阅读说明：本技术 用于机动车的执行器单元 (Actuator unit for a motor vehicle ) 是由 马尔库什·温克勒 克里斯托夫·哈施克 于 2019-07-25 设计创作，主要内容包括：本发明涉及一种用于机动车的执行器单元(1),包括执行器壳体(2),所述执行器壳体具有至少部分可转动地容纳在其中的执行器轴(3),其中在执行器轴(3)上设置有装配盖(4),其中装配盖(4)设计用于静止地固定执行器轴(3)。(The invention relates to an actuator unit (1) for a motor vehicle, comprising an actuator housing (2) having an actuator shaft (3) which is at least partially rotatably received therein, wherein a mounting cap (4) is arranged on the actuator shaft (3), wherein the mounting cap (4) is designed to fix the actuator shaft (3) in a stationary manner.)

1. Actuator unit (1) for a motor vehicle, comprising an actuator housing (2) having an actuator shaft (3) at least partially rotatably accommodated therein, characterized in that a mounting cover (4) is provided on the actuator shaft (3), wherein the mounting cover (4) is designed for the stationary fixing of the actuator shaft (3).

2. Actuator unit (1) according to claim 1, characterized in that the fitting cap (4) is connected with a form fit to the actuator shaft (3).

3. Actuator unit (1) according to any of the preceding claims, characterized in that the fitting cap (4) has a bore (5) for receiving a section of the actuator shaft (3).

4. Actuator unit (1) according to one of the preceding claims, characterized in that the fitting cap (4) has a locking arm (6), wherein the actuator housing (2) has a locking section (7), and wherein the locking arm (6) is operatively connected with the locking section (7) in the fitted position in order to fix the actuator shaft (3) stationary on the actuator housing (2).

5. Actuator unit (1) according to claim 4, characterized in that the locking arm (6) has a locking tooth (8), wherein the locking tooth (8) is designed to bear in a form-fitting manner against the locking section (7) in the assembled position.

6. Actuator unit (1) according to claim 4 or 5, characterized in that the locking arm (6) is at least partially elastically constructed so as to be elastically deformed when the fitting cap (4) is fitted on the actuator shaft (3).

7. Actuator unit (1) according to one of the preceding claims, wherein the mounting cap (4) is axially plugged onto the actuator shaft (3), wherein a limit value for the plugging force must be exceeded for mounting the mounting cap (4) onto the actuator shaft (3), and wherein a limit value for the unplugging force must be exceeded for detaching the mounting cap (4) from the actuator shaft (3).

8. Actuator unit (1) according to any of the preceding claims, wherein the fitting cap (4) consists of an elastic material.

9. Actuator unit (1) according to one of the preceding claims, characterized in that the mounting cap (4) has a first and a second radially formed web (9a, 9b), wherein the webs (9a, 9b) are arranged opposite one another on the mounting cap (4) and are designed for detaching the mounting cap (4) from the actuator shaft (3).

10. Use of an actuator unit (1) according to any one of claims 1 to 9 in combination with a parking lock for a motor vehicle.

Technical Field

The invention relates to an actuator unit for a motor vehicle, comprising an actuator housing having an actuator shaft at least partially rotatably received therein. The invention relates in particular to an actuator unit which is designed for use with a parking lock for a motor vehicle.

Background

When assembling a motor vehicle, a motor vehicle transmission is usually installed separately in the motor vehicle, which has a parking lock integrated therein and an actuator unit, which comprises an actuator shaft and an actuator lever for switching the parking lock. In particular, the actuator unit is fitted to the parking lock, wherein the actuator rod is introduced into the parking lock in order to be coupled there to a snap ring of a slide of the parking lock. By rotating the actuator shaft, the actuator lever operatively connected thereto is actuated and the parking brake of the motor vehicle is locked or released. Since the actuator shaft is mounted in the actuator housing of the actuator unit so as to be partially rotatable, typically rotatable by approximately 30 °, the actuator lever has different positions between 0 ° and 30 ° when the actuator unit is assembled with the parking lock. If the actuator rod does not have the correct position for fitting on the flat collar of the slide, the assembly effort is increased due to the subsequent readjustment of the actuator rod that is necessary.

A shifting device for a motor vehicle gear transmission is known, for example, from DE 102010013938 a1, which has a shifting element that can be moved toward a housing in order to select or shift gears or shift paths. At least some of the gears or shifting paths are assigned a limiting mechanism which forms a stop for limiting the shifting or selection movement, wherein the end position of the shifting or selection movement can be adjusted via the stop such that manufacturing tolerances of the shifting device can be compensated. The limiting mechanism is supported directly both on the shifting element and on the housing in the end position.

Disclosure of Invention

The object of the present invention is to provide an actuator unit having an actuator shaft, which is particularly easy to assemble and thus reduces the assembly effort of the actuator unit in a motor vehicle. This object is achieved by an actuator unit according to the invention. Preferred embodiments emerge from the dependent claims.

The actuator unit according to the invention for a motor vehicle comprises an actuator housing having an actuator shaft which is accommodated in an at least partially rotatable manner therein, wherein a mounting cap is arranged on the actuator shaft, wherein the mounting cap is designed to fix the actuator shaft in a stationary manner. In addition, the mounting cap serves for positioning the actuator shaft and thus also for positioning the actuator rod which is operatively connected to the actuator shaft. Due to the mounting cover, the actuator shaft and thus also the actuator rod always have the correct position when the actuator unit is mounted in a motor vehicle, preferably on a parking lock of the motor vehicle, so that the mounting effort is significantly reduced. Thus, the actuator rod is not readjusted. The snap ring (bordsheibe) of the slide of the parking brake can be introduced directly into the guide groove of the actuator rod.

Preferably, the mounting cap is connected to the actuator shaft in a form-fitting manner. In particular, the actuator shaft is connected in a rotationally fixed manner to a mounting cap, wherein the mounting cap is plugged onto the actuator shaft.

Preferably, the mounting cap has a bore for receiving a section of the actuator shaft. The bore in the actuator shaft corresponds substantially to the outer circumference of the section of the actuator shaft, on which the mounting cap is inserted. In particular, the section on the actuator shaft has the same axial length as the mounting cap.

According to a preferred embodiment of the invention, the mounting cap has a locking arm, wherein the actuator housing has a locking section, and wherein the locking arm is operatively connected to the locking section in the mounting position in order to fix the actuator shaft to the actuator housing in a stationary manner. For example, the locking segments are formed as recesses in the form of grooves or as formations in the form of edges or locking teeth.

Preferably, the locking arm has a locking tooth, wherein the locking tooth is designed to bear against the locking section in a form-fitting manner in the assembled position. In particular, the locking tooth is formed at least partially corresponding to the locking section, wherein the locking tooth at least partially penetrates into the locking section. The locking tooth can be understood to be a projection on the locking arm, wherein the projection is designed to lock the locking arm on the other component.

Furthermore, the locking arm is preferably at least partially formed in a resilient manner in order to be deformed resiliently when the mounting cap is mounted on the actuator shaft. Preferably, the fitting cover is composed of an elastic material. The fitting cover is made of, for example, plastic or metal plate. The mounting cap is preferably designed as a recyclable item or as a disposable item and is therefore designed for single use, and can therefore be produced particularly advantageously. In particular, the locking arm is at least partially deflected during assembly and disassembly of the fitting cap.

The invention comprises the technical teaching that the mounting cap is axially insertable onto the actuator shaft, wherein a limit value of the insertion force must be exceeded for mounting the mounting cap on the actuator shaft, and wherein a limit value of the withdrawal force must be exceeded for dismounting the mounting cap from the actuator shaft. For example, the limit values for the insertion force and the removal force can be set via a contour provided for this purpose on the locking arm and/or the locking segment. In particular, the limit values for the insertion force and the removal force are set via the design of the locking tooth.

The mounting cap preferably has a first and a second radially formed web, wherein the webs are arranged opposite one another on the mounting cap and are designed for detaching the mounting cap from the actuator shaft. By means of the tabs, it becomes easy to dismount the mounting cap from the actuator shaft. By pulling the two tabs, the pull-out force can be introduced particularly advantageously into the mounting cup. In particular, by the tab, handling and removal of the fitting cap from the actuator shaft becomes easy.

Furthermore, the actuator unit according to the invention is used in conjunction with a parking lock for a motor vehicle. The parking lock is preferably integrated in the transmission.

Drawings

The following description of preferred embodiments of the invention with the aid of the drawings shows further measures which improve the invention in detail. As shown here, the flow of the gas through the nozzle,

fig. 1 shows a schematic perspective view for illustrating an actuator unit with a fitted cover according to the invention;

FIG. 2 shows a schematic detail view of an actuator unit according to the invention during the assembly of an assembly cover

Fig. 3 shows a schematic detail view of an actuator unit according to the invention in an assembly position of an assembly cover;

fig. 4 shows a schematic perspective view of an actuator unit with a fitting cover in a fitting position; and

fig. 5 shows a schematic plan view of the mounting cap on the actuator unit.

Detailed Description

Fig. 1, 4 and 5 show an actuator unit 1 for a motor vehicle, not shown here. The actuator unit 1 comprises an actuator housing 2 and an actuator shaft 3, which is operatively connected to an actuator rod 10. The actuator shaft 3 is accommodated in the actuator housing 2 in a partially rotatably mounted manner and projects partially axially from the actuator housing 2. The actuator rod 10 is now connected to the actuator shaft 3 in a rotationally fixed manner and is shown clearly in fig. 5.

According to fig. 5, the actuator rod 10 has a guide groove 11 which is designed to receive a stop collar, not shown here, of a slide of a parking lock device, not shown here, of the motor vehicle in order to lock or release a parking brake of the motor vehicle by rotation of the actuator shaft 3.

Fig. 1 shows a mounting cap 4, which is designed to be inserted axially onto actuator shaft 3 according to arrow 12 in order to fix actuator shaft 3 to actuator housing 2 in a stationary manner and thus to lock the orientation of actuator rod 13 for mounting actuator unit 1 on the parking lock. For this purpose, the mounting cap 4 has an axial bore 5 for receiving the distal end section 15 of the actuator shaft 3. The end section 15 on the actuator shaft 3 has a substantially rectangular cross section, wherein the opening 5 on the mounting cap 4 is correspondingly formed and is connected to the actuator shaft 3 in a rotationally fixed manner, i.e., in a form-fitting manner. Furthermore, the mounting cap 4 has a locking arm 6 which, in the mounted position, is designed to interact with a locking section 7 on the actuator housing 2. Furthermore, the mounting cap 4 comprises first and second radially formed webs 9a, 9b for detaching the mounting cap 4 from the actuator shaft 3. The mounting cap 4 is designed as a disposable item and can therefore be produced particularly advantageously and simply. In other words, in order to orient and lock the actuator shaft 3 for mounting the actuator unit 1 on the parking lock, the mounting cap 4 is inserted onto the actuator shaft 3 and removed again after mounting the actuator unit 1 on the parking lock. The usually complex orientation of the actuator rod 13 is thereby dispensed with, so that the assembly time and the assembly effort can be reduced.

According to fig. 2, the mounting cap 4 is axially inserted onto the actuator shaft 3, wherein the locking arm 6 rests against a locking section 7 on the actuator housing 2. The mounting cap 4 is made of plastic, wherein the locking arms 6 are elastically formedIs constructed so as to be elastically deformed when the fitting cap 4 is fitted on the actuator shaft 3. For this purpose, locking teeth 8 are formed on the distal end of the locking arm 6, which teeth have a ramp profile and an undercut profile. The ramp contour interacts with the locking section 7 on the actuator housing 2 when the mounting cap 4 is mounted on the actuator shaft 3 in such a way that the limit value of the insertion force must be exceeded in order to achieve a resilient deformation of the locking arm 6 by means of the locking tooth 8 and therewith to overcome the same

The locking segment 7. As soon as the limit value of the axial insertion force is exceeded, the locking tooth 8 slides over the locking section 7 and finally hooks onto the locking section 7 in a form-fitting manner in the assembled position.

Fig. 3 shows the installation position of the locking arm 6 on the locking segment 7 or of the installation cover 4 on the actuator shaft 3. In the mounting position, the actuator shaft 3 is connected in a rotationally fixed manner to the actuator housing 2 via the mounting cap 4, which is fixed in a stationary manner to the actuator housing 2. The locking tooth 8 rests with an undercut contour against the locking section 7 of the actuator housing 2, so that for the disassembly of the mounting cover 4 from the actuator shaft 3, the limit value of the extraction force must be exceeded. The limit value of the withdrawal force is currently higher than the limit value of the insertion force.

Fig. 4 shows an actuator unit 1 with a mounting cap 4 in a mounting position. The actuator shaft 3 and the fitting cap 4 are arranged coaxially to one another and are connected to one another in a form-fitting manner. After the actuator unit 1 has been mounted on the parking lock of the motor vehicle, the mounting cap 4 is removed in order to release the rotation of the actuator shaft 3 again. Preferably, an axial extraction force is exerted on the tabs 9a, 9b in order to extract the mounting cap 4 from the actuator shaft 3.

Fig. 5 shows the actuator unit 1 with the mounting cap 4 from the end side. In addition to the two lugs 9a, 9b formed opposite one another on the mounting cap 4, the locking arm 6 is also clearly visible. In order to reinforce the two webs 9a, 9b, corresponding reinforcing ribs 13a, 13b are provided on the rear side of the web surface, on which a pull-out force can be applied axially to the webs 9a, 9 b. Furthermore, a recess 14 is formed in the locking arm 6, which recess is also designed to adjust the deformation resistance of the locking arm 6.

List of reference numerals

1 actuator unit

2 actuator casing

3 actuator shaft

4 assembling cover

5 holes

6 locking arm

7 locking segment

8 locking tooth

9a, 9b tab

10 actuator rod

11 guide groove

12 arrow head

13a, 13b stiffening ribs

14 hollow part

15 end section