FLUID PRESSURE-FEED DEVICE

• US 20190314858A1
• Filed: 04/08/2019
• Published: 10/17/2019
• Est. Priority Date: 04/11/2018
• Status: Active Grant

• Current Assignee: Pyles Japan Co., Ltd., Toyota Jidosha Kabushiki Kaisha (Toyota Motor Corporation)
• Original Assignee: Toyota Jidosha Kabushiki Kaisha (Toyota Motor Corporation)
• Inventors: TASAKA, Masahiro, MAKINO, Rikiya, SUZUKI, Takashi, URASHI, Takatoshi, SUZUKI, Shouji
• Granted Patent: US 11,377,340 B2
• Time in Patent Office: Days
• CPC Class Codes: B05B 9/047 supply being effected by follower in container, e.g. membrane or floating piston , or by deformation of container B05B9/0838 takes precedence
• CPC Class Codes: B05C 1/02 for applying liquid or other fluent material to separate articles B05C1/006 takes precedence
• CPC Class Codes: B05C 11/101 responsive to weight of a container for liquid or other fluent material; responsive to level of liquid or other fluent material in a container
• CPC Class Codes: B05C 11/1042 provided with means for heating or cooling the liquid or other fluent material in the supplying means upstream of the applying apparatus
• CPC Class Codes: B05C 11/1047 Apparatus or installations for supplying liquid or other fluent material comprising a buffer container or an accumulator between the supply source and the applicator
• CPC Class Codes: B05C 11/11 Vats or other containers for liquids or other fluent materials
• CPC Class Codes: B05D 7/14 to metal, e.g. car bodies involving a chemical reaction between the metal and the coating C23
• CPC Class Codes: B67D 7/0227 by an ejection plunger B67D7/0238 takes precedence
• CPC Class Codes: B67D 7/645 Barrel pumps
• CPC Class Codes: F04B 15/02 the fluids being viscous or non-homogeneous

Abstract

A fluid pressure-feed device includes a main tank and a sub tank. The sub tank is connected integrally with an upper portion of a main follower plate that applies pressurizing force to a urethane adhesive inside the main tank. A drum pump is provided in an upper portion of a sub follower plate provided in the sub tank. While the urethane adhesive is flowing into the sub tank from the main tank, the urethane adhesive is fed under pressure from the sub tank to a fluid passage by actuation of the drum pump. While the main tank is being replaced, the urethane adhesive inside the sub tank is fed under pressure to the fluid passage by the drum pump.

Claims

1. A fluid pressure-feed device that feeds a fluid under pressure to a fluid passage, the device comprising:

a main tank configured to be filled with the fluid;

a main follower plate that applies pressurizing force to the fluid inside the main tank;

a sub tank into which the fluid forced out from the main tank flows, the sub tank being provided integrally with the main follower plate; and

a pump that feeds the fluid inside the sub tank under pressure toward the fluid passage.

2. The fluid pressure-feed device according to claim 1, comprising a sub follower plate that is configured to apply pressurizing force to the fluid inside the sub tank, the pressurizing force being used to force out the fluid toward the pump during a replacement operation of the main tank.

3. The fluid pressure-feed device according to claim 1, comprising a check valve that is disposed between the main follower plate and the sub tank, and configured to open when pressure of the fluid inside the main tank becomes a given value or higher.

4. The fluid pressure-feed device according to claim 1, wherein a capacity of the sub tank is set so as to be smaller than a capacity of the main tank and also larger than a required amount of the fluid by a given value, the required amount of the fluid being an amount of the fluid to be fed under pressure toward the fluid passage during a replacement operation of the main tank.