1. A carburetor comprising:
a throttle element that is rotatably supported on a throttle shaft;
a choke element that is rotatably supported on a choke shaft;
a first coupling element that is fixedly connected to said throttle shaft;
a second coupling element that is connected to said choke shaft;
wherein said first coupling element and said second coupling element in at least one locked position define a start position of said throttle element and said choke element;
wherein said at least one locked position is released by rotation of said throttle shaft in opening direction of said throttle element;
wherein said at least one locked position is released by rotation of said choke shaft in opening direction of said choke element;
wherein one of said first and said second coupling elements is an at least partially elastic coupling element;
wherein, upon rotation of said choke shaft from said at least one locked position into an open position, said at least partially elastic coupling element is elastically deformed and releases said at least one locked position effected between said first and second coupling elements.
2. The carburetor according to claim 1, wherein said at least partially elastic coupling element has a hook-shaped section that is elastic.
3. The carburetor according to claim 1, wherein said at least partially elastic coupling element is comprised of plastic material.
4. The carburetor according to claim 1, wherein the other one of said first and second coupling elements is shape-stable under forces occurring in regular operation.
5. The carburetor according to claim 4, wherein said first coupling element is elastic and said second coupling element is shape-stable.
6. The carburetor according to claim 1, wherein said first coupling element has a locking contour interacting with a locking section of said second coupling element, wherein, when said throttle element is closed, said locking contour blocks said second coupling element and prevents rotation of said choke shaft in said opening direction.
7. The carburetor according to claim 6, wherein said at least partially elastic coupling element has a hook-shaped section that is elastic and said hook-shaped section provides said locking contour.
8. The carburetor according to claim 1, wherein on said choke shaft an intermediate lever is fixedly arranged and said second coupling element is rotatably supported on said choke shaft and coupled with said intermediate lever by a coupling device, wherein said coupling device enables a limited movability of said second coupling element relative to said immediate lever in at least one direction.
9. The carburetor according to claim 8, wherein said coupling device limits the movability of said second coupling element relative to said intermediate lever in both rotational directions relative to said choke shaft.
10. The carburetor according to claim 8, wherein said coupling device is a pin that projects into an opening wherein an extension of said pin in a circumferential direction of said choke shaft is smaller than an extension of said opening.
11. The carburetor according to claim 10, wherein said pin is provided on said second coupling element and said opening is provided on said intermediate lever.
12. The carburetor according to claim 8, comprising a coupling spring that is arranged in a direction of action between said second coupling element and said intermediate lever.
13. The carburetor according to claim 12, wherein said coupling spring secures said intermediate lever in an axial direction of said choke shaft.
14. The carburetor according to claim 8, wherein said intermediate lever and said second coupling element are comprised of shape-staple material.
15. The carburetor according to claim 1, wherein said first coupling element is secured on said throttle shaft by a fastening screw.
16. The carburetor according to claim 1, wherein said throttle element and said choke element open in identical rotational direction.
The claims below are in addition to those above.
All refrences to claim(s) which appear below refer to the numbering after this setence.
1.-15. (canceled)
16. An update unit for a vehicle for updating a digital map, said update unit comprising:
a map unit with a digital map for displaying a travel route on the map;
wherein the update unit is configured to proactively ascertain a required portion of the map; and
wherein the update unit is also configured to receive a restricted update for the map which relates to the required portion of the map.
17. The update unit as claimed in claim 16,
wherein the required portion of the map is ascertained on the basis of a user input.
18. The update unit as claimed in claim 16,
Wherein the required portion of the map is ascertained on the basis of detection of a traveled journey route.
19. The update unit as claimed in claim 16 further comprising a communication unit for communication with a system control center.
20. The update unit as claimed in claim 19, wherein the update unit is configured to retrieve the restricted update from the system control center.
21. The update unit as claimed in claim 20,
wherein the update unit is configured to produce a profile of a typical area of movement of the vehicle;
wherein the update unit is also configured to transmit data to the system control center which correspond to the typical area of movement.
22. An update system for a vehicle for updating a digital map, said update system comprising:
an update unit as claimed in claim 16;
a system control center for transmitting the restricted update to the update unit.
23. The update system as claimed in claim 22,
wherein the system control center is a central server system which is arranged outside of the vehicle and which communicates with the update unit via a wireless communication network.
24. The update system as claimed in claim 22, wherein the system control center is configured to cyclically check the required portion of the map for changes.
25. The update system as claimed in claim 24, wherein the system control center is also configured to establish a degree for the changes in the required portion of the map.
26. The update system as claimed in claim 22, wherein the system control center is also configured to initiate retrieval of the restricted update.
27. The update system as claimed in claim 22, wherein the system control center stores a complete map; and wherein the system control center is configured to produce and to transmit updates for the map.
28. A method for updating a digital map for a vehicle, said method comprising the following steps:
proactively ascertaining a required portion of the map by an update unit;
cyclically checking the required portion of the map for changes;
transmitting a restricted update, which relates to the required portion of the map, to the update unit by a system control center; and
receiving the restricted update for the map by the update unit.
29. A computer program product which, when executed on a processor, instructs the processor to perform the following steps:
proactive ascertainment of a required portion of a digital map for a vehicle;
reception of a restricted update for the map which relates to the required portion of the map; and
update of the map on the basis of the restricted update.
30. A computer-readable medium which stores a computer program product which, when executed on a processor, instructs the processor to perform the following steps:
proactive ascertainment of a required portion of a digital map for a vehicle;
reception of a restricted update for the map which relates to the required portion of the map; and
update of the map on the basis of the restricted update.