IP Library › Granted Patent US 11,117,158
Granted Patent B2
US 11,117,158 · App. 16/589,236 · Granted Sep 14, 2021

Sealant discharging apparatus

Inventors: Yohei Matsumoto (Tokyo, JP); Mitsuru Kono (Tokyo, JP)
Assignee: SUBARU CORPORATION
B05C11/1005
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Quick Facts
Patent No.
US 11,117,158
App. No.
16/589,236
Granted
Sep 14, 2021
Kind
B2
Abstract

A sealant discharging apparatus includes a sealing gun, a movement controller, and a discharge controller. The sealing gun discharges sealant to an object. The movement controller causes the sealing gun and the object to move relatively. The discharge controller controls a discharge amount of the sealant discharged from the sealing gun. The movement controller controls a movement velocity of the sealing gun based on a volume of post-sealing sealant that has been discharged from the sealing gun and used to seal the object, and an amount of volume change in a sealant pool that has been discharged from the sealing gun and is yet to be used to seal the object.

Claims (32)

1. A sealant discharging apparatus comprising:

a sealing gun configured to discharge sealant to an object;

one or more controllers configured to cause the sealing gun and the object to move relatively, and

control a discharge amount of the sealant discharged from the sealing gun; and

a measuring instrument connected to the one or more controllers, and configured to output a measurement result to the one or more controllers,

wherein the one or more controllers are configured to:

determine a volume of post-sealing sealant that has been discharged from the sealing gun and sealed the object;

determine a current radius of a sealant pool that has been discharged from the sealing gun and is yet to be used to seal the object based on the measurement result;

determine an amount of volume change in the sealant pool based on a difference between the current radius of the sealant pool and a predetermined target radius of the sealant pool;

determine a movement velocity of the sealing gun based on at least two factors, including the determined volume of the post-sealing sealant, and the determined amount of volume change in the sealant pool; and

control movement of the sealing gun at the determined movement velocity.

2. The sealant discharging apparatus according to claim 1 ,

wherein the controller is further configured to:

approximate a shape of the sealant pool by a hemisphere shape or a quarter sphere shape;

determine the radius of the sealant pool based on the approximated shape of the sealant pool; and

control the movement velocity of the sealing gun on a basis of a relationship that a sum of the volume of the post-sealing sealant and the amount of volume change in the sealant pool gives a discharge amount of the sealant discharged from the sealing gun.

3. The sealant discharging apparatus according to any claim 2 ,

wherein the sealing gun discharges the sealant forward in a movement direction.

4. The sealant discharging apparatus according to any claim 1 ,

wherein the sealing gun discharges the sealant forward in a movement direction.

5. A sealant discharging apparatus comprising:

a sealing gun configured to discharge sealant to an object; and

circuitry configured to

cause the sealing gun and the object to move relatively; and

control a discharge amount of the sealant discharged from the sealing gun,

a measuring instrument connected to the circuitry, and configured to output a measurement result to the circuitry,

wherein the circuitry is configured to:

determine a volume of post-sealing sealant that has been discharged from the sealing gun and sealed the object;

determine a current radius of a sealant pool that has been discharged from the sealing gun and is yet to be used to seal the object based on the measurement result;

determine an amount of volume change in the sealant pool based on a difference between the current radius of the sealant pool and a predetermined target radius of the sealant pool;

determine a movement velocity of the sealing gun based on at least two factors, including the determined volume of the post-sealing sealant, and the determined amount of volume change in the sealant pool; and

control movement of the sealing gun at the determined movement velocity.

Assignments (1)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Oct 1, 2019
From: MATSUMOTO, YOHEI; KONO, MITSURU
To: SUBARU CORPORATION
Reel/Frame 050580/0905 →
Priority Claims (1)
JP JP2018-192785 · Oct 11, 2018 · national
Continuity (1)
Related Publication 20200114388A1 · Apr 16, 2020
Cited By (1)
US 12,521,891