# US 12,109,937 B2 · Vehicular drawing device

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- Number: US 12,109,937 B2
- Document ID: US12109937B2
- Status: Granted
- Kind: B2
- Application number: 17/978,211
- Filed: 2022-11-01
- Published: 2023-05-25
- Granted: 2024-10-08
- Earliest claimed: 2021-11-19
- Assignees: Toyota Jidosha Kabushiki Kaisha
- Applicants: Toyota Jidosha Kabushiki Kaisha
- Inventors: Fumihiko Mouri
- Web page: https://patentgrep.com/patent/US12109937B2

## CPC

- B60Q 1/34: for indicating change of drive direction (B60Q1/22 takes precedence)
- B60Q 1/38: using immovably-mounted light sources, e.g. fixed flashing lamps
- B60Q 1/50: for indicating other intentions or conditions, e.g. request for waiting or overtaking
- B60Q 1/547: {for issuing requests to other traffic participants; for confirming to other traffic participants they can proceed, e.g. they can overtake}
- B60Q 2400/50: Projected symbol or information, e.g. onto the road or car body
- B60Q: ARRANGEMENT OF SIGNALLING OR LIGHTING DEVICES, THE MOUNTING OR SUPPORTING THEREOF OR CIRCUITS THEREFOR, FOR VEHICLES IN GENERAL

## Abstract

A vehicular drawing device is mounted in a vehicle and draws an indication mark of a predetermined shape on a road surface in a traveling direction of the vehicle using light. Drawing of the indication mark on the road surface is performed when a direction indicator is operating or when steering of the vehicle is being performed. Drawing of the indication mark is stopped or a direction in which the indication mark is drawn is changed when predetermined conditions are satisfied.

## Claims

### Claim 1

A vehicular drawing device that is mounted in a vehicle and draws an indication mark of a predetermined shape on a road surface in a traveling direction of the vehicle using light, wherein:
drawing of the indication mark on the road surface is performed when a direction indicator is operating or when steering of the vehicle is being performed; and
drawing of the indication mark is stopped when predetermined conditions are satisfied, wherein
drawing of the indication mark indicating that the vehicle is traveling to an oncoming lane is stopped when there is an oncoming vehicle,
drawing of the indication mark is not stopped when the vehicle is located within a crossing, and
drawing of the indication mark outward of a lane which is a lane change destination is stopped when a lane in which the vehicle is traveling is changed.

### Claim 2 (depends on 1)

The vehicular drawing device according to claim 1, wherein drawing of the indication mark is stopped when the vehicle passes over a sidewalk on a roadside to enter the sidewalk and the direction indicator is operating but steering is not being performed.

### Claim 3 (depends on 1)

The vehicular drawing device according to claim 1, wherein drawing of the indication mark in a direction parallel to a sidewalk on a roadside on the sidewalk is prohibited or an indication mark to be drawn is changed to display entrance into a road when the vehicle passes over the sidewalk to enter the road.

### Claim 4

A vehicular drawing device that is mounted in a vehicle and draws an indication mark of a predetermined shape on a road surface in a traveling direction of the vehicle using light, wherein:
drawing of the indication mark on the road surface is performed when a direction indicator is operating or when steering of the vehicle is being performed; and
drawing of the indication mark is stopped when the vehicle enters a sidewalk and the direction indicator is operating but steering is not being performed.

### Claim 5

A vehicular drawing device that is mounted in a vehicle and draws an indication mark of a predetermined shape on a road surface in a traveling direction of the vehicle using light, wherein:
drawing of the indication mark on the road surface is performed when a direction indicator is operating or when steering of the vehicle is being performed; and
drawing of the indication mark is in a direction parallel to a sidewalk is prohibited or an indication mark to be drawn is changed to display entrance into a road when the vehicle enters the road from a sidewalk.

### Claim 6

A vehicular drawing device that is mounted in a vehicle and draws an indication mark of a predetermined shape on a road surface in a traveling direction of the vehicle using light, wherein:
drawing of the indication mark on the road surface is performed when a direction indicator is operating or when steering of the vehicle is being performed; and
a direction in which the indication mark is drawn is changed to a direction directed to a target lane when a direction of the indication mark of the predetermined shape is not directed to the target lane;
drawing of the indication mark indicating that the vehicle is traveling to an oncoming lane is stopped when there is an oncoming vehicle.