(19)
(11) EP 3 828 439 A8

(12) CORRECTED EUROPEAN PATENT APPLICATION
Note: Bibliography reflects the latest situation

(15) Correction information:
Corrected version no 1 (W1 A1)

(48) Corrigendum issued on:
06.10.2021 Bulletin 2021/40

(43) Date of publication:
02.06.2021 Bulletin 2021/22

(21) Application number: 20162369.1

(22) Date of filing: 11.03.2020
(51) International Patent Classification (IPC): 
F16H 25/24(2006.01)
(52) Cooperative Patent Classification (CPC):
F16H 25/24; F16H 2025/2436; F16H 25/2233; F16H 25/2223
(84) Designated Contracting States:
AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR
Designated Extension States:
BA ME
Designated Validation States:
KH MA MD TN

(30) Priority: 29.11.2019 CN 201911205346

(71) Applicant: Lee, Szu-Ying
New Taipei City 220 (TW)

(72) Inventor:
  • Lee, Szu-Ying
    New Taipei City 220 (TW)

(74) Representative: Viering, Jentschura & Partner mbB Patent- und Rechtsanwälte 
Am Brauhaus 8
01099 Dresden
01099 Dresden (DE)

 
Remarks:
Amended claims in accordance with Rule 137(2) EPC.
 


(54) BALL SCREW ASSEMBLY


(57) A ball screw assembly includes a guider (10), an open nut (20), an open shield (30), a first circulator (40), a second circulator (50), and a ball circulating assembly (60). The open nut (20) is slidably fitted over the guider (10) and includes an axial cylinder (21) having an axial opening (211). An inner spiral channel (2141) of the axial cylinder (21) and a spiral channel (11) of the guider (10) form an inner ball race. The open shield (30) is coaxially fitted over the axial cylinder (21). An inner peripheral wall (31) of the open shield (30) and an outer annular wall (215) of the axial cylinder (21) form an outer spiral ball race. The first circulator (40) and the second circulator (50) are disposed on the axial cylinder (21). The inner ball race, a first curve (41) of the first circulator (40), the outer spiral ball race, and a second curve (51) of the second circulator (50) form a ball circulating race, and the ball circulating assembly (60) rolls in the ball circulating race.