US 7,530,647 B2
Vehicular brake device
Takahiro Yamaguchi, Kariya (Japan); Takeshi Fuchida, Kariya (Japan); Shigeki Torii, Anjo (Japan); Takashi Sato, Okazaki (Japan); Hidemi Ikai, Kariya (Japan); Yukio Ishikawa, Hekinan (Japan); and Hiroyuki Shinkai, Obu (Japan)
Assigned to Advics Co., Ltd., Aichi-pref. (Japan)
Filed on Oct. 30, 2006, as Appl. No. 11/589,237.
Claims priority of application No. 2005-318438 (JP), filed on Nov. 01, 2005; application No. 2005-318439 (JP), filed on Nov. 01, 2005; application No. 2006-101949 (JP), filed on Apr. 03, 2006; application No. 2006-101950 (JP), filed on Apr. 03, 2006; and application No. 2006-101951 (JP), filed on Apr. 03, 2006.
Prior Publication US 2007/0096550 A1, May 03, 2007
Int. Cl. B60T 8/40 (2006.01)
U.S. Cl. 303—116.4  [303/10; 417/410.3] 14 Claims
OG exemplary drawing
 
1. A vehicular brake device, comprising:
a plurality of rotary pumps, each including:
a rotating portion which includes an inner rotor having, on an outer periphery thereof, an external teeth portion and an outer rotor having, on an inner periphery thereof, an internal teeth portion, wherein the internal teeth portion and the external teeth portion meshes to form a plurality of gap portions;
an intake port for introducing brake fluid to the rotating portion; and
a discharge port for discharging brake fluid flowing out from the rotating portion;
a pump body for housing a drive shaft and the plurality of rotary pumps and for driving by means of the drive shaft the inner rotors of the plurality of rotary pumps, the pump body including:
a cylindrical first case for housing the plurality of-rotary pumps;
a second case located coaxially with the first case; and
a spring located between the first case and the second case;
a housing having a concave portion to which the pump body is inserted with the first case closest to the leading end of the pump body in a direction of insertion; and
a fixing means located at an entrance of the concave portion for pressing the second case in the direction of the insertion and for fixing the second case.