# US 10,501,036 B2 · Bumper reinforcement

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- Number: US 10,501,036 B2
- Document ID: US10501036B2
- Status: Granted
- Kind: B2
- Application number: 16/048,707
- Filed: 2018-07-30
- Published: 2019-03-21
- Granted: 2019-12-10
- Earliest claimed: 2017-09-15
- Assignees: Toyota Jidosha Kabushiki Kaisha; Toyota Shatai Kabushiki Kaisha
- Applicants: Toyota Jidosha Kabushiki Kaisha; Toyota Shatai Kabushiki Kaisha
- Inventors: Junichi Takayanagi; Toshihisa Miura
- Web page: https://patentgrep.com/patent/US10501036B2

## CPC

- B60R 19/22: containing {mainly} cellular material, e.g. solid foam
- B60R 19/03: characterised by material, e.g. composite (B60R19/18 takes precedence)
- B60R 19/18: {characterised by the cross-section;} Means within the bumper to absorb impact
- B60K 5/04: with the engine main axis, e.g. crankshaft axis, transversely to the longitudinal centre line of the vehicle
- B60R 2019/1806: {Structural beams therefor, e.g. shock-absorbing}
- B60R 2019/1813: {made of metal}
- B60R: VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
- 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

The present disclosure provides a bumper reinforcement including: a bumper main body portion extending in a vehicle transverse direction and is provided at a vehicle longitudinal direction outer side of a pair of left and right side members, the pair of left and right side members being disposed at a vehicle front portion or a vehicle rear portion and extending in a vehicle longitudinal direction; and a reinforcing member formed of wood and is block-shaped, and that is disposed within a cross-section of at least a vehicle transverse direction central portion of the bumper main body portion, an axially central direction of annual growth rings of the wood of the reinforcing member being set to a direction that runs along the vehicle transverse direction.

## Claims

### Claim 1

A bumper reinforcement comprising:
a bumper main body portion extending in a vehicle transverse direction and is provided at a vehicle longitudinal direction outer side of a pair of left and right side members, the pair of left and right side members being disposed at a vehicle front portion or a vehicle rear portion and extending in a vehicle longitudinal direction; and
a reinforcing member formed of wood and is block-shaped, and that is disposed within a cross-section of at least a vehicle transverse direction central portion of the bumper main body portion, an axially central direction of annual growth rings of the wood of the reinforcing member being set to a direction that runs along the vehicle transverse direction.

### Claim 2 (depends on 1)

The bumper reinforcement of claim 1, wherein:
a power unit, at which an engine and a transaxle are connected in the vehicle transverse direction, is disposed at a vehicle longitudinal direction inner side of the vehicle transverse direction central portion of the bumper main body portion; and
the reinforcing member is disposed at a vehicle longitudinal direction outer side of at least a connected portion of the engine and the transaxle.

### Claim 3 (depends on 1)

The bumper reinforcement of claim 1, wherein both end portions in the vehicle transverse direction of the reinforcing member are positioned further toward vehicle transverse direction outer sides than distal end portions of the side members.

### Claim 4 (depends on 3)

The bumper reinforcement of claim 3, wherein the reinforcing member includes a pair of left and right breakage starting point portions that are provided further toward a vehicle transverse direction inner side than the distal end portions of the side members.

### Claim 5 (depends on 2)

The bumper reinforcement of claim 2, wherein both end portions in the vehicle transverse direction of the reinforcing member are positioned further toward a vehicle transverse direction inner side than distal end portions of the side members and further toward vehicle transverse direction outer sides than the power unit.

### Claim 6 (depends on 1)

The bumper reinforcement of claim 1, further comprising side reinforcing members provided at both end portions in the vehicle transverse direction of the reinforcing member, which are positioned at vehicle longitudinal direction outer sides of distal end portions of the side members, the side reinforcing members being formed of wood and being block-shaped, an axially central direction of annual growth rings of the wood of the side reinforcing members being set to a direction that runs along the vehicle longitudinal direction.

### Claim 7 (depends on 6)

The bumper reinforcement of claim 6, wherein gaps are provided between the side reinforcing members and the reinforcing member.