# US 10,369,921 B2 · Work vehicle

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- Number: US 10,369,921 B2
- Document ID: US10369921B2
- Status: Granted
- Kind: B2
- Application number: 14/906,709
- Filed: 2014-06-20
- Published: 2016-06-30
- Granted: 2019-08-06
- Earliest claimed: 2013-07-24
- Assignees: Yanmar Co., Ltd.
- Applicants: Yanmar Co., Ltd.
- Inventors: Shinya Kawashiri; Kiyoyuki Okuyama
- Web page: https://patentgrep.com/patent/US10369921B2

## CPC

- B60Q 1/24: for lighting other areas than only the way ahead
- B60Q 1/0035: {relative to the vehicle}
- B60Q 1/0041: {of several lamps in relation to each other}
- B60Q 1/0408: {built into the vehicle body, e.g. details concerning the mounting of the headlamps on the vehicle body (B60Q1/0491, B60Q1/05 take precedence, integrated front ends B62D25/00)}
- B60Q 1/18: being additional front lights {(bracket mounted headlights B60Q1/0483)}
- B60Q 1/32: for indicating vehicle sides {, e.g. clearance lights}
- B60Q 2800/20: Utility vehicles, e.g. for agriculture, construction work
- B60Q: ARRANGEMENT OF SIGNALLING OR LIGHTING DEVICES, THE MOUNTING OR SUPPORTING THEREOF OR CIRCUITS THEREFOR, FOR VEHICLES IN GENERAL

## Abstract

Regarding a tractor in which head lights for illuminating the front by means of a bulb as a main light source body are respectively arranged on both right and left sides of a hood, the front end surface of the head light is formed in such a manner as to protrude to the front as the front end surface advances from an outer side in the right-and-left direction of the hood to the central side in the right-and-left direction of the hood, and the bulb is provided on the outer side in the right-and-left direction of the hood in the head light, and a reflector, which is a reflection means, is provided on the central side in the right-and-left direction of the hood with respect to the bulb of the head light.

## Claims

### Claim 1

A work vehicle comprising:
a hood comprising:
an upper surface;
an upper left surface abutted to the upper surface to form a left ridge line, wherein an edge of the upper left surface defines at least part of a left notch portion of the hood; and
an upper right surface abutted to the upper surface to form a right ridge line, wherein an edge of the upper right surface defines at least part of a right notch portion,
wherein:
the upper left surface and the upper right surface formed such that a width in the right-left direction is gradually reduced from a midway portion of the hood toward a front end of the hood;
a first end of the left ridge line and a first end of the right ridge line meet at the midway portion of a front end of the hood to form a vertex; and
the upper left surface abuts the upper right surface to form a ridge line having a first end positioned at the vertex and extending from the first end of the ridge line, in a direction toward the front end of the hood, line to a second end of the ridge line; and
head lights configured to illuminate in a forward direction, the head lights comprising:
a left head light arranged on a left side of the hood and positioned in and protrudes laterally outward from the left notch portion; and
a right head light arranged on a right side of the hood and positioned in and protrudes laterally outward from the right notch portion.

### Claim 2 (depends on 1)

The work vehicle according to claim 1, wherein a plurality of LED are disposed along the front end surfaces of the head lights.

### Claim 3 (depends on 1)

The work vehicle according to claim 1, wherein the left ridge line and the right ridge line converge at a center of a front portion of the hood in the plane view.

### Claim 4 (depends on 1)

The work vehicle according to claim 1, wherein the left ridge line and the right ridge line meet such that a first end of the left ridge line and a first end of the right ridge line are positioned at the same location on the hood.

### Claim 5 (depends on 1)

The work vehicle according to claim 1, wherein the ridge line extends continuously from the first end of the ridge line to the front end of the hood.

### Claim 6 (depends on 1)

The work vehicle according to claim 1, wherein:
a first plurality of LED are disposed along a front end surface of the left head light; and
a second plurality of LED are disposed along a front end surface of the right head light.

### Claim 7 (depends on 1)

The work vehicle according to claim 1, wherein:
the hood further comprising a left side surface and a right side surface;
the upper left surface is positioned between the upper surface and the left side surface; and
the upper right surface is positioned between the upper surface and the right side surface.

### Claim 8 (depends on 7)

The work vehicle according to claim 7, wherein:
the left notch portion is further formed based on an edge of the left side surface;
the left head light is positioned in the notch between the edge of the upper left surface and the edge of the left side surface;
the right notch portion is further formed based on an edge of the right side surface; and
the right head light is positioned in the notch between the edge of the upper right surface and the edge of the right side surface.

### Claim 9 (depends on 8)

The work vehicle according to claim 8, wherein the front end of the hood is formed by the ridge line, the edge of the upper left surface, and the of the upper right surface.