Torque detecting apparatus

Details Torque detecting apparatus Torque detecting apparatus

2005-05-13

2008-08-26

Noori, Max (Department: 2855)

Measuring and testing

Dynamometers

Responsive to torque

C073S862333

Reexamination Certificate

active

07415899

ABSTRACT:
The number n of N-poles and S-poles circumferentially aligned on the cylindrical magnet that integrally rotates with the first shaft is determined so as to be a greatest integer that satisfies the following formula that includes a maximum value Tmax(Nm) of the torque to be detected and a torsion spring constant k (Nm/deg) of the torsion bar connecting the first shaft and the second shaft: 2·n·Tmax/k<360. The cylindrical magnet includes teeth-shaped portions in which portions corresponding to the N-poles and the S-poles are of a protruding shape, so that adhesion of magnetic dust concentrates at the protruding portions. Thus, a torque detecting apparatus is provided that reduces the effect of the adhesion of the magnetic dust, so as to attain higher detection sensitivity and thereby improve the detection accuracy, without incurring an increase in cost.

REFERENCES:
patent: 5531110 (1996-07-01), Ohashi et al.
patent: 6707182 (2004-03-01), Yamanaka et al.
patent: 6847902 (2005-01-01), Fukaya et al.
patent: 6880411 (2005-04-01), Nakane et al.
patent: 6928887 (2005-08-01), Nakane et al.
patent: 7051602 (2006-05-01), Nakane et al.
patent: 7287440 (2007-10-01), Maehara
patent: 2002/0189371 (2002-12-01), Nakane et al.
patent: 2003/0209087 (2003-11-01), Nakane et al.
patent: 102 22 118 (2002-11-01), None
patent: 2 824 910 (2002-11-01), None
patent: 2003-149062 (2003-05-01), None

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