# US 2014/0151140 A1 · Bumper assembly

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- Number: US 2014/0151140 A1
- Document ID: US20140151140A1
- Status: Published application
- Kind: A1
- Application number: 13/690,626
- Filed: 2012-11-30
- Published: 2014-06-05
- Earliest claimed: 2012-11-30
- Assignees: Caterpillar SARL
- Applicants: Caterpillar S.A.R.L.
- Inventors: Iain J. GILES-BROWN; Ian H. MEARNS
- Web page: https://patentgrep.com/patent/US20140151140A1

## CPC

- B60R 19/02: Bumpers, i.e. impact receiving or absorbing members for protecting vehicles or fending off blows from other vehicles or objects ({B60R19/56 takes precedence; initiating brake action by contact of bumper with an external object B60T7/22; for rail vehicles B61F19/04; safety equipment for cycles B62J27/00;} integral with waterborne vessels or specially adapted therefor B63B59/02)
- B60R 19/48: combined with, or convertible into, other devices or objects, e.g. bumpers combined with road brushes, bumpers convertible into beds
- B60R: VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR

## Abstract

A bumper assembly is disclosed for use with a mobile machine. The bumper assembly may have a heat exchanger, and a bumper configured to support the heat exchanger. The bumper may have a recess formed in an upper surface and located to provide a clearance space around a lower portion of the heat exchanger.

## Claims

### Claim 1

A bumper assembly, comprising:
a heat exchanger; and
a bumper configured to support the heat exchanger, the bumper having a recess formed in an upper surface to provide a clearance space for the heat exchanger, the clearance space located around a lower portion of the heat exchanger.

### Claim 2 (depends on 1)

The bumper assembly of claim 1, wherein the bumper includes:
an upper plate having a first leading edge, a first trailing edge located opposite the first leading edge, and a first pair of leg portions extending from the first trailing edge;
a lower plate spaced apart from the upper plate and having a second leading edge, a second trailing edge, and a second pair of leg portions extending from the second trailing edge; and
a plurality of intermediate walls connecting the upper plate and the lower plate,
wherein the recess is formed with the upper plate between the first leading edge and the first trailing edge, and extends in a transverse direction between the first pair of leg portions.

### Claim 3 (depends on 2)

The bumper assembly of claim 2, wherein the first pair of leg portions extends a different distance from the first trailing edge than the second pair of leg portions extend from the second trailing edge.

### Claim 4 (depends on 3)

The bumper assembly of claim 3, wherein the first and second leading edges are generally arcuate.

### Claim 5 (depends on 3)

The bumper assembly of claim 3, wherein the first and second pairs of leg portions are configured to be welded to a machine frame in generally vertical and horizontal alignment with upper and lower plates of the machine frame.

### Claim 6 (depends on 5)

The bumper assembly of claim 5, wherein the upper plate, lower plate, and plurality of intermediate walls form generally hollow box-like structures.

### Claim 7 (depends on 5)

The bumper assembly of claim 5, wherein the lower plate includes protrusion connected to the first pair of legs and extending inward to receive power source mounting.

### Claim 8 (depends on 5)

The bumper assembly of claim 5, further including at least one tow feature connected to a bottom surface of the lower plate.

### Claim 9 (depends on 1)

The bumper assembly of claim 1, wherein the clearance space is about 15-50 mm.

### Claim 10 (depends on 1)

The bumper assembly of claim 1, wherein the heat exchanger is cantilevered over the recess.

### Claim 11 (depends on 10)

The bumper assembly of claim 10, wherein the heat exchanger is connected to the bumper by way of a fan shroud.

### Claim 12 (depends on 11)

The bumper assembly of claim 11, wherein the fan shroud is connected to the upper surface of the bumper by way of a plurality of fasteners located at transverse sides of the fan shroud relative to a flow direction through the heat exchanger and fan shroud.

### Claim 13

A bumper, comprising:
an upper plate having a first leading edge, a first trailing edge located opposite the first leading edge, and a first pair of leg portions extending from the first trailing edge;
a lower plate spaced apart from the upper plate and having a second leading edge, a second trailing edge, and a second pair of leg portions extending from the second trailing edge;
a plurality of intermediate walls connecting the upper plate and the lower plate; and
a recess formed with the upper plate between the first leading edge and the first trailing edge, the recess extending in a transverse direction between the first pair of leg portions.

### Claim 14 (depends on 13)

The bumper of claim 13, wherein the first pair of leg portions extends a different distance from the first trailing edge than the second pair of leg portions extend from the second trailing edge.

### Claim 15 (depends on 14)

The bumper of claim 14, wherein the first and second leading edges are generally arcuate.

### Claim 16 (depends on 14)

The bumper of claim 14, wherein the first and second pairs of leg portions are configured to be welded to a machine frame in generally vertical and horizontal alignment with upper and lower plates of the machine frame.

### Claim 17 (depends on 16)

The bumper of claim 16, wherein the upper plate, lower plate, and plurality of intermediate walls form generally hollow box-like structures.

### Claim 18 (depends on 13)

The bumper of claim 13, further including at least one tow feature connected to a bottom surface of the lower plate.

### Claim 19 (depends on 13)

The bumper of claim 13, wherein the lower plate includes protrusion connected to the first pair of legs and extending inward to receive power source mounting

### Claim 20

A machine, comprising:
a frame;
a plurality of traction devices rotationally supporting the frame;
a power source supported by the frame and configured to drive the plurality of traction devices;
a heat exchanger package located at a leading end of the power source and configured to cool the power source; and
a bumper connected to the frame and configured to mount the heat exchanger package, the bumper having a recess formed in an upper surface at the heat exchanger package,
wherein:
the heat exchanger package is cantilevered over the recess; and
a clearance space is maintained between a bottom surface of the recess and the heat exchanger package.
