Title:
BEARING CAP FOR VEHICLE WHEEL-BEARING APPARATUS WITH ROTATIONAL SPEED DETECTION DEVICE, AND VEHICLE WHEEL-BEARING APPARATUS WITH ROTATIONAL SPEED DETECTION DEVICE
Document Type and Number:
WIPO Patent Application WO/2021/166524
Kind Code:
A1
Abstract:
The present invention addresses the problem of providing: a bearing cap that is for a vehicle wheel-bearing apparatus with a rotational speed detection device, that is capable of efficiently discharging, outside a sensor support part, foreign matter having entered inside the sensor support part, and that ensures the rigidity of the sensor support part; and a vehicle wheel-bearing apparatus with a rotational speed detection device. In a bearing cap (11) in which a sensor support part (21) is formed on a bottom surface section (15c) of a cap body (15) and in which an insertion hole (21a) for a rotational speed sensor (19) is formed in the sensor support part (21), a recess (15d) that accommodates a tip portion of the rotational speed sensor (19) is formed in the portion of the bottom surface section (15c) where the sensor support part (21) is formed. The sensor support part (21) includes a first wall section (21b) and a second wall section (21c) that are disposed, facing each other across a virtual line L passing through a center axis G1 of the bottom surface section (15c) and a center axis G2 of the insertion hole (21a), and that are formed along the circumferential edge of the recess (15d). Protrusions (21d) protruding from the bottom surface section (15c) are continuously provided on the outer circumferential surfaces of the first wall section (21b) and the second wall section (21c).
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Inventors:
KAKUKO TOMOKI (JP)
Application Number:
PCT/JP2021/001715
Publication Date:
August 26, 2021
Filing Date:
January 19, 2021
Export Citation:
Assignee:
NTN TOYO BEARING CO LTD (JP)
International Classes:
F16C19/18; B60B35/02; F16C33/76; F16C41/00
Domestic Patent References:
| WO2016129554A1 | 2016-08-18 |
Foreign References:
| JP2018150966A | 2018-09-27 | |||
| JP2015166612A | 2015-09-24 | |||
| JP2016136064A | 2016-07-28 |
Attorney, Agent or Firm:
YANO INTERNATIONAL PATENT ATTORNEYS OFFICE, P.C. (JP)
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