IP Library › Granted Patent US 12,729,515
Granted Patent B2
US 12,729,515 · App. 18/681,138 · Granted Sep 8, 2026

Construction machine

Inventor: Atsushi Houjou (Tokyo, JP)
Assignee: KOMATSU LTD.
E02F9/264E02F9/0883
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Quick Facts
Patent No.
US 12,729,515
App. No.
18/681,138
Granted
Sep 8, 2026
Kind
B2
Abstract

A construction machine includes a vehicle body, a tank disposed in the vehicle body, and a sensor including a detection portion configured to detect the liquid. The tank accommodates a liquid. The sensor is supported by the tank. The tank includes a reduced width section formed to reduce a width of a predetermined range including the detection portion.

Claims (62)

1 . A construction machine comprising:

a vehicle body;

a tank disposed in the vehicle body, the tank accommodating a liquid, the tank having a first side surface and a second side surface facing the first side surface inside the tank;

a sensor including a detection portion configured to detect the liquid, the sensor being supported on the first side surface of the tank and the detection portion protruding from the first side surface toward the second side surface inside the tank; and

a member disposed on the second side surface and protruding toward the first side surface inside the tank,

the tank including a reduced width section formed to reduce a width of a predetermined range including the detection portion, the reduced width section being formed by the member between the first side surface and the second side surface.

2 . The construction machine according to claim 1 , wherein

the reduced width section is formed so that the width of the tank is reduced in a left to right direction of the vehicle body.

3 . The construction machine according to claim 2 , wherein

the vehicle body includes

a cab,

a monitor disposed in the cab, and

a control section configured to issue an alert using the monitor when detecting that the sensor has detected exposure from a liquid surface based on a detection value of the sensor.

4 . The construction machine according to claim 1 , wherein

the sensor is disposed in a center of the first side surface in a horizontal direction.

5 . The construction machine according to claim 4 , wherein

the vehicle body includes

a cab,

a monitor disposed in the cab, and

a control section configured to issue an alert using the monitor when detecting that the sensor has detected exposure from a liquid surface based on a detection value of the sensor.

6 . The construction machine according to claim 1 , wherein

the vehicle body includes

a cab,

a monitor disposed in the cab, and

a control section configured to issue an alert using the monitor when detecting that the sensor has detected exposure from a liquid surface based on a detection value of the sensor.

7 . A construction machine comprising:

a vehicle body;

a tank disposed in the vehicle body, the tank accommodating a liquid;

a sensor including a detection portion configured to detect the liquid, the sensor being supported on a first side surface of the tank and the detection portion protruding from the first side surface toward a second side surface of the tank, the second side surface facing the first side surface; and

a member disposed on the second side surface,

the tank including a reduced width section formed to reduce a width of a predetermined range including the detection portion, the reduced width section being formed by the member between the first side surface and the second side surface,

the member including

a first portion protruding from the second side surface toward the first side surface,

a second portion disposed below the first portion, the second portion protruding from the second side surface toward the first side surface, and

a third portion joining an end on a side of the first side surface of the first portion and an end on a side of the first side surface of the second portion, the third portion facing the detection portion.

8 . The construction machine according to claim 7 , wherein

the first portion is slanted downward and extends toward the first side surface.

9 . The construction machine according to claim 8 , wherein

the second portion is slanted upward and extends toward the first side surface.

10 . The construction machine according to claim 8 , wherein

the reduced width section is formed so that the width of the tank is reduced in a left to right direction of the vehicle body.

11 . The construction machine according to claim 8 , wherein

the vehicle body includes

a cab,

a monitor disposed in the cab, and

a control section configured to issue an alert using the monitor when detecting that the sensor has detected exposure from a liquid surface based on a detection value of the sensor.

12 . The construction machine according to claim 7 , wherein

the second portion is slanted upward and extends toward the first side surface.

13 . The construction machine according to claim 12 , wherein

the reduced width section is formed so that the width of the tank is reduced in a left to right direction of the vehicle body.

14 . The construction machine according to claim 12 , wherein

the vehicle body includes

a cab,

a monitor disposed in the cab, and

a control section configured to issue an alert using the monitor when detecting that the sensor has detected exposure from a liquid surface based on a detection value of the sensor.

15 . The construction machine according to claim 7 , wherein

the reduced width section is formed so that the width of the tank is reduced in a left to right direction of the vehicle body.

16 . The construction machine according to claim 7 , wherein

the vehicle body includes

a cab,

a monitor disposed in the cab, and

a control section configured to issue an alert using the monitor when detecting that the sensor has detected exposure from a liquid surface based on a detection value of the sensor.

Assignments (1)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Feb 5, 2024
From: HOUJOU, ATSUSHI
To: KOMATSU LTD.
Reel/Frame 066344/0810 →
Priority Claims (1)
JP 2021-134840 · Aug 20, 2021 · national
Continuity (1)
Related Publication 20240279911A1 · Aug 22, 2024
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