Bolt-type angular gear mechanism

Patent metadata

Field	Value
Publication number	US-12480563-B2
Application number	US-202418443772-A
Country	US
Kind code	B2
Filing date	Feb 16, 2024
Priority date	Feb 16, 2023
Publication date	Nov 25, 2025
Grant date	Nov 25, 2025

Abstract

A bolt-type angular gear mechanism ( 1 ), having angular bolts ( 3 ) each with two limbs, which are angled in relation to each other, a first bolt carrier ( 11 ), which is rotatable about a first axis ( 13 ) and has first bolt receptacles ( 15 ), in each of which a first limb ( 5 ) of one of the angular bolts ( 3 ) is at least partially received, and a second bolt carrier ( 21 ), which is rotatable about a second axis ( 23 ), which is different from the first axis ( 13 ), and has second bolt receptacles ( 25 ), in each of which a second limb ( 7 ) of one of the angular bolts ( 3 ) is at least partially received, so that the first bolt carrier ( 11 ) and the second bolt carrier ( 21 ) are connected by means of the angular bolts ( 3 ), wherein the limbs of the angular bolt ( 3 ) have a flattened portion ( 39 ), wherein the flattened portion extends in the longitudinal direction of the limb.

First claim

The invention claimed is:

1 . A bolt-type angular gear mechanism ( 1 ), comprising
angular bolts ( 3 ) each with two limbs, which are angled in relation to each other, a first bolt carrier ( 11 ), which is rotatable about a first axis ( 13 ) and has first bolt receptacles ( 15 ), in each of which a first limb ( 5 ) of one of the angular bolts ( 3 ) is at least partially received, and a second bolt carrier ( 21 ), which is rotatable about a second axis ( 23 ), which is different from the first axis ( 13 ), and has second bolt receptacles ( 25 ), in each of which a second limb ( 7 ) of one of the angular bolts ( 3 ) is at least partially received, so that the first bolt carrier ( 11 ) and the second bolt carrier ( 21 ) are connected by means of the angular bolts ( 3 ), wherein the limbs of the angular bolts ( 3 ) have a flattened portion ( 39 , 41 ), wherein the flattened portion extends in the longitudinal direction of the limb, and wherein the flattened portion at least partially slides into at least one of the first bolt receptacles ( 15 ) and the second bolt receptacles ( 25 ).

2 . The bolt-type angular gear mechanism ( 1 ) according to claim 1 , wherein the flattened portion ( 39 , 41 ) is formed over at least 20% of the length of the limb.

3 . The bolt-type angular gear mechanism ( 1 ) according to claim 1 , wherein the flattened portion is in the form of an inner flattened portion ( 39 ) or in the form of an outer flattened portion ( 41 ).

4 . The bolt-type angular gear mechanism ( 1 ) according to claim 1 , wherein the angular bolts ( 3 ) are each rounded with an inner rounded portion ( 43 ) between inner flattened portions ( 39 ) of the two limbs.

5 . The bolt-type angular gear mechanism ( 1 ) according to claim 4 , wherein a point ( 65 ) positioned on the inner rounded portion ( 43 ) and on an angle bisector ( 63 ) of the two limbs is situated within a first cylindrical envelope ( 47 ) of the first limb ( 5 ) and within a second cylindrical envelope ( 49 ) of the second limb ( 7 ).

6 . The bolt-type angular gear mechanism ( 1 ) according to claim 1 , wherein the limbs each have a cylindrical region ( 51 ) with a first limb surface ( 53 ), wherein the first limb surface ( 53 ) is at least partially in the form of a cylinder lateral surface.

7 . The bolt-type angular gear mechanism ( 1 ) according to claim 1 , wherein the limbs each have a second limb surface ( 57 ) in a conical region ( 55 ) of the limbs, the conical region adjoining an end side ( 37 ) of the limbs, wherein the second limb surface ( 57 ) is at least partially in the form of a frustoconical lateral surface.

8 . The bolt-type angular gear mechanism ( 1 ) according to claim 7 , wherein the conical region ( 55 ) extends over at least 20% of the length of the limb.

9 . The bolt-type angular gear mechanism ( 1 ) according to claim 7 , wherein a cone angle ( 65 ) of the conical region ( 55 ) is at most 2 degrees and/or at least 0.03 degree.

10 . The bolt-type angular gear mechanism ( 1 ) according to claim 1 , wherein the limbs comprise at least one cutout, which is in the form of a pocket ( 71 ) and extends in the longitudinal direction of the limbs.

11 . The bolt-type angular gear mechanism according to claim 10 , wherein the pocket ( 71 ) comprises a plurality of pockets ( 71 ), and wherein the limbs have at least one pocket ( 71 ) of the plurality of pockets ( 71 ) on a limb inner side and one pocket ( 71 ) of the plurality of pockets ( 71 ) on a limb outer side.

12 . The bolt-type angular gear mechanism ( 1 ) according to claim 10 , wherein the pocket ( 71 ) comprises a pocket base surface ( 73 ) and an oil discharging slope, which adjoins the pocket base surface ( 73 ) in the longitudinal direction of the limbs.

13 . The bolt-type angular gear mechanism ( 1 ) according to claim 10 , wherein the pocket ( 71 ) extends as far as an end side ( 37 ) of the limb.

14 . The bolt-type angular gear mechanism ( 1 ) according to claim 1 , wherein an angular bolt of the angular bolts is composed of two bolt halves ( 81 ) along its limb longitudinal axis.

15 . An angular bolt for a bolt-type angular gear mechanism according to claim 1 .

16 . The bolt-type angular gear mechanism ( 1 ) according to claim 1 , wherein the flattened portion ( 39 , 41 ) is formed over an entire length of the limb.

17 . The bolt-type angular gear mechanism ( 1 ) according to claim 1 , wherein the flattened portion ( 39 , 41 ) is formed over at least 50% of a substantial portion of the length of the limb.

Assignees

• Wittenstein Se

Inventors

• Lesch Michael
• Hanus Maximilian
• Irmer Axel
• Poeschmann Tim
• Michel Sebastian

Classifications

• F16D3/08

  Couplings for intersecting shafts, provided with intermediate bars bent in an angle corresponding with the angle of intersection · CPC title

• F16H1/14 Primary

  comprising conical gears only · CPC title

• F16H21/48 Primary

  for conveying rotary motions · CPC title