JPH0443236U - - Google Patents

Description

[Brief explanation of drawings]

1 to 14 relate to embodiments of the present invention,
Fig. 1 is a sectional view of the torque sensor, Fig. 2 is a sectional view for explaining the structure of the main parts, Fig. 3 is a plan view of the output shaft, Fig. 4 is a longitudinal sectional view of the output shaft, and Fig. 5 is the input shaft. 6 is a bottom view of the input shaft, FIG. 7 is a side view of the input shaft, FIG. 8 is a plan view of the output shaft and detection ring according to different embodiments, and FIG. 9 is a bottom view of the input shaft. Figure 8 is a vertical sectional view of the input shaft fitted to the output shaft, Figure 10 is a plane sectional view of the output shaft and detection ring according to different embodiments, and Figure 11 is the output shaft of Figure 10. 12 and 13 are longitudinal sectional views of the output shaft and detection ring according to different embodiments, FIG. 14 is an electric circuit diagram, and FIG. The figure is a partial vertical sectional view of a torque sensor according to a comparative example, and FIG. 16 is a partial vertical sectional view of a torque sensor according to a conventional example. 3...Input shaft, 4...Torsion bar, 5...
Output shaft, 13...first detection ring, 14...second
Detection ring, 18...Detection coil, 22...Inner circumferential engagement portion, 23...Outer circumference engagement portion, 34, 35...Notch.

Claims (1)

[Claims for Utility Model Registration] (1) An input shaft, an output shaft connected to the input shaft via a torsion bar, and at least one pair of detection rings made of magnetic material provided on the outer periphery of each of the input shaft and the output shaft, It is equipped with a detection coil that generates magnetic flux passing through both detection rings, and the torque transmitted from the input shaft to the output shaft is detected by the output change from the detection coil according to the relative rotation of both detection rings. In a torque sensor in which a shaft and an output shaft are fitted through an engaging portion formed on an inner circumference of one and an outer circumference of the other, relative rotation of both axes is regulated within a certain range, A torque sensor characterized in that the engaging positions of both engaging parts do not overlap in the radial direction with respect to the detection ring of one shaft in which the inner circumferential engaging part is formed. (2) An input shaft, an output shaft connected to the input shaft via a torsion bar, at least one pair of detection rings made of magnetic material provided on the outer peripheries of the input shaft and the output shaft, and magnetic flux passing through both detection rings. The torque transmitted from the input shaft to the output shaft is detected by the output change from the detection coil according to the relative rotation of both detection rings, and the input shaft and output shaft are In a torque sensor, the relative rotation of both shafts is regulated within a certain range by being fitted through an engaging part formed between an inner circumference of the shaft and an outer circumference of the other, wherein the inner circumferential engaging part is formed. A notch is formed in at least one of the outer periphery of one of the shafts that is attached to the shaft, and the inner periphery of the detection ring that is attached to this outer periphery, so that deformation of the detection ring due to deformation of the one shaft can be reduced. A torque sensor featuring: