IP Library Granted Patent US 9,169,917
Granted Patent B2
US 9,169,917 · App. 13/848,193 · Granted Oct 27, 2015

Support structure of a planet gear carrier

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Quick Facts
Patent No.
US 9,169,917
App. No.
13/848,193
Granted
Oct 27, 2015
Kind
B2
Abstract

A planet gear carrier ( 1 ) for an automotive vehicle having a plurality of mounting regions ( 2 ), mounting a respective planet gear ( 4 ), and between the mounting regions ( 2 ), at least one aperture ( 5 ) such as a through-hole ( 6 ) that weakens the planet gear carrier ( 1 ), and when filled by a stiffening element ( 7 ) reinforces the planet gear carrier ( 1 ). A planet gear carrier having installed planet gears, a spur gear differential comprising such a planet gear carrier as well as a spur gear differential comprising two planet gear carriers of the aforesaid type.

Claims (20)

1. A planet gear carrier ( 1 ) for an automotive vehicle, comprising:

a plurality of mounting regions ( 2 ), each of said mounting regions ( 2 ) mounting a respective planet gear ( 4 );

at least one aperture ( 5 ):

that weakens said planet gear carrier ( 1 );

including at least one collar ( 3 ) with at least one catch recess ( 12 ); and,

arranged between said mounting regions ( 2 ) of said planet gear carrier ( 1 ) and,

at least one stiffening element ( 7 ):

including at least one snap projection ( 13 ); and,

arranged to be inserted in said at least one aperture ( 5 ) such that said at least one snap projection ( 13 ) is inserted in said at least one catch recess ( 12 ) to fix on said planet gear carrier ( 1 ) through a snap connection, wherein said at least one aperture ( 5 ):

is defined by a section of the at least one collar ( 3 ) that is configured as an integral component of said planet gear carrier ( 1 ); and,

forms a part of said mounting region ( 2 ).

2. The planet gear carrier ( 1 ) recited in claim 1 , wherein said plurality of mounting regions ( 2 ) are arranged to engage at least partially around said respective planet gear ( 4 ) in sections.

3. The planet gear carrier ( 1 ) recited in claim 1 , wherein a center ( 8 ) of said at least one aperture ( 5 ) has a same radial distance from a center ( 9 ) of said planet gear carrier ( 1 ) as a distance of an axis of rotation ( 10 ) of a planet from said center ( 9 ) of said planet gear carrier ( 1 ) through which an axis of rotation ( 11 ) of said planet gear carrier ( 1 ) extends.

4. The planet gear carrier ( 1 ) recited in claim 1 , wherein said at least one aperture ( 5 ) is defined on two sides by said at least one collar ( 3 ) of two mounting regions ( 2 ).

5. The planet gear carrier ( 1 ) recited in claim 1 , wherein said at least one collar ( 3 ) is configured as a section of said planet gear carrier ( 1 ) bent approximately at a right angle to a surface of said planet gear carrier ( 1 ).

6. The planet gear carrier ( 1 ) recited in claim 1 , wherein said at least one stiffening element ( 7 ) is adapted in shape to said at least one aperture ( 5 ).

7. The planet gear carrier ( 1 ) recited in claim 1 , wherein said at least one stiffening element ( 7 ) is pre-fabricated.

8. The planet gear carrier ( 1 ) recited in claim 1 , wherein said stiffening at least one element ( 7 ) comprises on two opposing surfaces ( 14 , 15 ) a concave shape, and/or on two opposing surfaces ( 16 , 17 ) a convex surface and a concave surface respectively.

9. The planet gear carrier ( 1 ) recited in claim 8 , wherein said convex surface ( 17 ) is situated on a side of said at least one stiffening element ( 7 ) facing away from a center ( 9 ) of said planet gear carrier ( 1 ).

10. The planet gear carrier ( 1 ) recited in claim 1 , wherein said at least one stiffening element ( 7 ) extends exactly so far along a direction of an axis of rotation ( 10 ) of a planet as said collar ( 3 ).

Assignments (4)
CORRECTIVE ASSIGNMENT TO CORRECT THE PROPERTY NUMBERS PREVIOUSLY RECORDED ON REEL 037732 FRAME 0347. ASSIGNOR(S) HEREBY CONFIRMS THE APP. NO. 14/553248 SHOULD BE APP. NO. 14/553258. Recorded Oct 11, 2016
From: SCHAEFFLER TECHNOLOGIES GMBH & CO. KG
To: SCHAEFFLER TECHNOLOGIES AG & CO. KG
Reel/Frame 040404/0530 →
MERGER AND CHANGE OF NAME Recorded Feb 5, 2016
From: SCHAEFFLER TECHNOLOGIES AG & CO. KG; SCHAEFFLER VERWALTUNGS 5 GMBH
To: SCHAEFFLER TECHNOLOGIES GMBH & CO. KG
Reel/Frame 037732/0228 →
CHANGE OF NAME Recorded Feb 5, 2016
From: SCHAEFFLER TECHNOLOGIES GMBH & CO. KG
To: SCHAEFFLER TECHNOLOGIES AG & CO. KG
Reel/Frame 037732/0347 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded May 10, 2013
From: BIERMANN, THORSTEN; MARTINI, HARALD; GRABENBAUER, RICHARD
To: SCHAEFFLER TECHNOLOGIES AG & CO. KG
Reel/Frame 030395/0670 →