# US 7,401,676 B2 · Mounting portion structure of propeller shaft center bearing

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- Number: US 7,401,676 B2
- Document ID: US7401676B2
- Status: Granted
- Kind: B2
- Application number: 11/210,624
- Filed: 2005-08-24
- Published: 2007-03-01
- Granted: 2008-07-22
- Earliest claimed: 2005-08-24
- Assignees: Hyundai Motor Company
- Inventors: Ki-Chang Kim
- Web page: https://patentgrep.com/patent/US7401676B2

## CPC

- B62D 25/20: Floors or bottom sub-units {(sub-frames for mounting engine or suspensions B62D21/11; drip trays F16N31/006)}
- B60K 17/24: Arrangement of mountings for shafting
- B62D: MOTOR VEHICLES; TRAILERS (steering, or guiding on a desired track, of agricultural machines or implements A01B69/00; wheels, castors, axles, increasing wheel adhesion B60B; vehicle tyres, tyre inflation or tyre changing B60C; connections between vehicles of a train or the like B60D; vehicles for use on rail and road, amphibious or convertible vehicles B60F; suspension arrangements B60G; heating, cooling, ventilating or other air treating devices B60H; windows, windscreens, non-fixed roofs, doors or similar devices, protective coverings for vehicles not in use B60J; propulsion plant arrangements, auxiliary drives, transmissions, controls, instrumentation or dashboards B60K; electric equipment or propulsion of electrically-propelled vehicles B60L; power supply for electrically-propelled vehicles B60M; passenger accommodation not otherwise provided for B60N; adaptations for load transportation or to carry special loads or objects B60P; arrangement of signalling or lighting devices, the mounting or supporting thereof or circuits therefor, for vehicles in general B60Q; vehicles, vehicle fittings or vehicle parts not otherwise provided for B60R; servicing, cleaning, repairing, supporting, lifting, or manoeuvring, not otherwise provided for, B60S; brake arrangements, brake control systems or parts thereof B60T; air-cushion vehicles B60V; motor-cycles, accessories therefor B62J, B62K; testing of vehicles G01M)
- B60K: ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES

## Abstract

A mounting portion structure of a propeller shaft center bearing in a Rear-Wheel Drive (RWD) vehicle where the engine power is transmitted to the rear wheels by using the propeller shaft includes a tunnel formed at the center of a center floor panel along the longitudinal direction of the vehicle. A mounting bracket is equipped at the tunnel and is mounted with the center bearing. A pocket groove is formed at the mounting bracket for rendering a closed box with the tunnel, and a pipe nut is equipped at the pocket groove.

## Claims

### Claim 1

A mounting portion structure of a propeller shaft center bearing in a Rear-Wheel Drive vehicle where the engine power is transmitted to the rear wheels by using the propeller shaft, comprising:
a tunnel formed at a center of a center floor panel along a longitudinal direction of a vehicle;
a mounting bracket equipped at said tunnel and mounted with said center bearing;
a pocket groove formed at said mounting bracket for rendering a closed box with said tunnel, said pocket groove comprising a partition member whereby said pocket groove may have a double partition structure; and
a pipe nut installed at said pocket groove.

### Claim 2

A mounting portion structure of a propeller shaft center bearing in a Rear-Wheel Drive vehicle where the engine power is transmitted to the rear wheels by using the propeller shaft, comprising:
a tunnel formed at a center of a center floor panel along a longitudinal direction of a vehicle;
a mounting bracket equipped at said tunnel and mounted with said center bearing;
a pocket groove formed at said mounting bracket for rendering a closed box with said tunnel; and
a pipe nut installed at said pocket groove;
wherein said mounting bracket forms at the center thereof an upwardly protruded trapezoid cross-section for being inserted into said tunnel, wherein said pocket grooves are symmetrically formed at both upper sides of the trapezoid, wherein both ends of said mounting bracket are respectively equipped with a flange coupled to said center floor panel, and the longitudinal direction of said tunnel and the longitudinal direction of said mounting bracket perpendicularly intersect each other at said center floor panel.

### Claim 3 (depends on 1)

The structure as defined in claim 1, wherein a stay is further equipped to connect both sides of said mounting bracket and to thereby pass across said tunnel.

### Claim 4 (depends on 2)

The structure as defined in claim 2, wherein a stay is further equipped to connect both sides of said mounting bracket and to thereby pass across said tunnel.