Fluid pressure-feed device
AssigneesToyota Jidosha Kabushiki Kaisha, Pyles Japan Co., Ltd.
InventorsMasahiro Tasaka, Rikiya Makino, Takashi Suzuki, Takatoshi Urashi, Shouji Suzuki
Life of this patent
Estimating the term…
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.
Claims6
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 a first 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;
- a pump that feeds the fluid inside the sub tank under pressure toward the fluid passage;
- a sub follower plate configured to apply a second pressurizing force to the fluid inside the sub tank to force the fluid toward the pump during a replacement operation of the main tank;
- a check valve disposed in the main follower plate comprising:
- a check plate, and
- a spring disposed between and contacting a joint plate attached to a lower surface of the sub tank and the check plate, the spring being configured to apply a biasing force to the check plate;
- a body disposed above the pump;
- at least one first cylinder comprising a piston rod, the at least one first cylinder having a lower end connected to a top end of the pump and further having an upper end connected to the body, the at least one first cylinder configured to, when actuated, vertically move the sub follower plate and the pump with respect to the sub tank, wherein
- the check valve is configured to open when a pressure of the fluid inside the main tank becomes a given value or higher.
Dependencies are inferred from the claim text.