Electronic device with movable foot pad
US-9042086-B2 · May 26, 2015 · US
Gear pair of a gearbox
US10612639B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-10612639-B2 |
| Application number | US-201515521039-A |
| Country | US |
| Kind code | B2 |
| Filing date | Sep 21, 2015 |
| Priority date | Oct 22, 2014 |
| Publication date | Apr 7, 2020 |
| Grant date | Apr 7, 2020 |
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- Title
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- Abstract
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Abstract
Official abstract text for this publication.
Gear pairing of a transmission with a first gear and with a second gear engaged with the first gear, whereby the first gear, in comparison to the second gear, is manufactured from a material that is less elastic or less soft, and whereby the first gear and the second gear have different normal target base pitches.
First claim
Opening claim text (preview).
The invention claimed is: 1. Gear pairing of a transmission, with a first gear and with a second gear that is engaged with the first gear wherein the first gear is manufactured from a material that is less elastic or less soft in comparison to the second gear, and that the first gear and the second gear have different normal target base pitches, wherein the first gear has a smaller normal target base pitch than the second gear. 2. Gear pairing according to claim 1 , wherein the first gear has a greater normal target pressure angle than the second gear. 3. Gear pairing according to claim 2 , wherein a difference in normal target pressure angles between the first gear and the second gear is larger than differences in normal target pressure angles resulting from production deviations or production tolerances. 4. Gear pairing according to claim 2 , wherein an angular deviation between the normal target pressure angle of the first gear and the normal target pressure angle of the second gear is dependent on operating stresses of the gear paring. 5. Gear pairing according to claim 2 , wherein an angular deviation between the normal target pressure angle of the first gear and the normal target pressure angle of the second gear is dependent on operating temperatures of the gear pairing. 6. Gear pairing according to claim 2 , wherein an angular deviation between the normal target pressure angle of the first gear and the normal target pressure angle of the second gear is dependent on the material pairing of the gear pairing. 7. Gear pairing according to claim 1 , wherein the first gear and the second gear have the same normal target modules. 8. Gear pairing according to claim 1 , wherein the first gear is made of a metal and the second gear is made of a plastic. 9. Gear pairing according to claim 1 , wherein a deviation between the normal target base pitch of the first gear and the normal target base pitch of the second gear is dependent on operating stresses of the gear pairing. 10. Gear pairing according to claim 1 , wherein the first gear and the second gear furthermore differ in terms of a target tip rounding. 11. Gear pairing according to claim 1 , wherein the first gear or the second gear have involute teeth. 12. A cylindrical gear pair with at least one gear pairing according to claim 1 . 13. A bevel gear pair, with at least one gear pairing according to claim 1 . 14. A planetary gear pair, with at least one gear pairing according to claim 1 . 15. Gear pairing according to claim 1 , wherein the difference in normal target base pitches between the first gear and the second gear is larger than differences in normal target base pitches resulting from production deviations or production tolerances. 16. Gear pairing according to claim 1 , wherein a deviation between the normal target base pitch of the first gear and the normal target base pitch of the second gear is dependent on operating temperatures of the gear pairing. 17. Gear pairing according to claim 1 , wherein a deviation between the normal target base pitch of the first gear and the normal target base pitch of the second gear is dependent on the material pairing of the gear pairing. 18. Gear pairing according to claim 1 , wherein a deviation between the normal target base pitch of the first gear and the normal target base pitch of the second gear is dependent on the sizes of the first gear and the second gear. 19. Gear pairing according to claim 1 , wherein the first gear and the second gear furthermore differ in terms of a target tip relief.
Assignees
Inventors
Classifications
- F16H55/06Primary
Use of materials; Use of treatments of toothed members or worms to affect their intrinsic material properties · CPC title
comprising conical gears only · CPC title
Profiling · CPC title
with parallel axes · CPC title
- F16H55/0806Primary
Involute profile · CPC title
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Frequently asked questions
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- What does patent US10612639B2 cover?
- Gear pairing of a transmission with a first gear and with a second gear engaged with the first gear, whereby the first gear, in comparison to the second gear, is manufactured from a material that is less elastic or less soft, and whereby the first gear and the second gear have different normal target base pitches.
- Who is the assignee on this patent?
- Zahnradfabrik Friedrichshafen
- What technology area does this patent fall under?
- Primary CPC classification F16H55/06. Mapped technology areas include Mechanical Engineering.
- When was this patent published?
- Publication date Tue Apr 07 2020 00:00:00 GMT+0000 (Coordinated Universal Time) (B2). Legal status and post-grant events are not shown on this page.
- What related patents are in patentsdb?
- We list 4 related publications on this page (citations in our corpus or others sharing the same primary CPC).