(19)
(11) EP 2 048 356 A3

(12) EUROPEAN PATENT APPLICATION

(88) Date of publication A3:
19.05.2010 Bulletin 2010/20

(43) Date of publication A2:
15.04.2009 Bulletin 2009/16

(21) Application number: 08017844.5

(22) Date of filing: 10.10.2008
(51) International Patent Classification (IPC): 
F02N 15/04(2006.01)
F02N 11/00(2006.01)
 F02N 15/06(2006.01)
(84) Designated Contracting States:
AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MT NL NO PL PT RO SE SI SK TR
Designated Extension States:
AL BA MK RS

(30) Priority: 11.10.2007 JP 2007265365

(71) Applicant: DENSO CORPORATION
Kariya-city, Aichi-pref. 448-8661 (JP)

(72) Inventor:
  • Niimi, Masami
    Kariya-city, Aichi-pref. 448-8661 (JP)

(74) Representative: Kuhnen & Wacker 
Patent- und Rechtsanwaltsbüro Prinz-Ludwig-Strasse 40A
85354 Freising
85354 Freising (DE)

   


(54) Speed reduction type starter for engines


(57) While engaging mechanically with one of the two internal gears (25) and (29) used for two gear reduction systems and suppressing rotation of the internal gear of one of these, there is provided a gear-switching member (34) that permits rotation of the other internal gear, the gear-switching member (34) is connected with a rotating friction plate (39) of an impact-absorbing mechanism 8 via a yoke (36). Thereby, if excessive shock is transmitted to an output shaft (3) of the starter from an engine side, rotation load will be transmitted to the rotating friction plate (39) via the yoke (36) from the gear-switching member (34) that engages with the internal gear (25) or the internal gear (29). Consequently, when the rotating friction plate (39) rotates resisting frictional force, the excessive shock can be eased and a power transfer system of the starter can be protected from excessive shock.







Search report