Autonomous Traveling Apparatus

Patent metadata

Field	Value
Publication number	US-2024094738-A1
Application number	US-202018266154-A
Country	US
Kind code	A1
Filing date	Dec 11, 2020
Priority date	Dec 11, 2020
Publication date	Mar 21, 2024
Grant date	—

Abstract

An autonomous traveling apparatus includes a traveling body. The traveling body includes a first wheel portion and a second wheel portion each provided along a traveling direction of the autonomous traveling apparatus in the traveling body with a predetermined space being interposed between the first wheel portion and the second wheel portion. The second wheel portion has a pair of wheels. The autonomous traveling apparatus further includes a laser sensor. The laser sensor is configured to detect an object around the laser sensor, and is provided on the traveling body to avoid a portion above each of the pair of wheels such that a scanning plane is lower than a maximum reach point of a range of an upward/downward movement of each of the pair of wheels, the scanning plane being a range in which the laser light passes while rotating the laser light.

First claim

1 . An autonomous traveling apparatus comprising a traveling body with a wheel to be driven, wherein
the traveling body includes a first wheel portion and a second wheel portion each provided in the traveling body along a traveling direction of the autonomous traveling apparatus with a predetermined space being interposed between the first wheel portion and the second wheel portion, and the second wheel portion has a pair of wheels configured to be movable upward/downward with respect to the autonomous traveling apparatus, the autonomous traveling apparatus further comprising a first laser sensor, wherein the first laser sensor is configured to detect an object around the first laser sensor by emitting laser light while rotating the laser light with respect to the first laser sensor and by receiving reflected light of the laser light, and the first laser sensor is provided on the traveling body to avoid a portion above each of the pair of wheels such that a scanning plane is located lower than a maximum reach point of a range of an upward/downward movement of each of the pair of wheels, the scanning plane being a range in which the laser light passes while rotating the laser light.

2 . The autonomous traveling apparatus according to claim 1 , wherein the first laser sensor is provided between the pair of wheels in a top view of the traveling body.

3 . The autonomous traveling apparatus according to claim 1 , wherein
the first wheel portion has a first front wheel and a second front wheel, and the pair of wheels are a first rear wheel and a second rear wheel.

4 . The autonomous traveling apparatus according to claim 3 , further comprising:
a second laser sensor having the same function as a function of the first laser sensor; and a third laser sensor having the same function as the function of the first laser sensor, wherein the second laser sensor is provided on the traveling body so as to be located above the first front wheel, and the third laser sensor is provided on the traveling body so as to be located above the second front wheel.

5 . The autonomous traveling apparatus according to claim 4 , wherein
a direction of the laser light emitted from the first laser sensor at least includes a backward traveling direction of the autonomous traveling apparatus, a direction of laser light emitted from the second laser sensor at least includes a forward traveling direction of the autonomous traveling apparatus and one direction orthogonal to the forward traveling direction, and a direction of laser light emitted from the third laser sensor at least includes the forward traveling direction of the autonomous traveling apparatus and the other direction orthogonal to the forward traveling direction.

6 . The autonomous traveling apparatus according to claim 1 , wherein
a height from a ground at the maximum reach point is 200 mm or more, and a height of the scanning plane from the ground is 200 mm or less.

7 . The autonomous traveling apparatus according to claim 1 , wherein configuring the pair of wheels to be movable upward/downward includes configuring the pair of wheels to be swingable in a plane orthogonal to the traveling direction of the autonomous traveling apparatus.

8 . The autonomous traveling apparatus according to claim 1 , wherein each of the pair of wheels is an omniwheel.

Assignees

• Dmg Mori Co Ltd

Inventors

• NAGASUE Hideki
• Maeda Ryota

Classifications

• G05D1/024 Primary

  in combination with a laser (lasers per se H01S) · CPC title

• B60G3/14

  the arm being rigid · CPC title

• B60B19/003

  Multidirectional wheels · CPC title

• G05D2201/0216

  Physics · mapped topic

• B62D57/02 Primary

  with ground-engaging propulsion means, e.g. walking members · CPC title