Manual Pulse Generator

Abstract

The present invention provides a manual pulse generator capable of obtaining a clear engagement feeling when rotating a rotating body and having an engagement mechanism with excellent durability. In the sensor unit (10) of the manual pulse generating device, when the rotating body (6) is rotated by manual operation, the rotation is detected by the sensor unit (8), and a pulse is generated based on the detection result. Furthermore, an engagement mechanism (7a) is provided between the rotating body (6) and the supporting body (200). The abutting part (70) engaged with the teeth (633) of the engaging gear (63) in the engaging mechanism (7a) is a shaft (71), and the shaft (71) passes through a spring member formed by a coil spring (76) ( 75) is pressed to the outer peripheral surface (630) of the engaging gear (63). The shaft (71) has a length equal to or greater than the width of the tooth (633), and abuts on the entire width of the tooth (633).

Description

technical field [0001] The invention relates to a manual pulse generating device for generating pulses through manual operation. Background technique [0002] Manual pulse generators used to set machining conditions for numerically controlled machine tools such as machining centers or to check the operation of electronic equipment, etc., generate pulses corresponding to the rotation angle of the rotating body when rotating a rotating body such as a dial by manual operation. In such a manual pulse generator, an engaging mechanism is provided to the rotating body to improve the operational feeling of the rotating body and to control the stop position of the rotating body and the like. A structure utilizing the magnetic force between magnets has been proposed as the engagement mechanism (see Patent Documents 1 and 2). In addition, a structure in which a ball is brought into contact with an engagement gear provided on a rotating body has been proposed (see Patent Document 3). ...

AI Technical Summary

Problems solved by technology

[0006] However, in the case of using the magnetic force between the magnets as in the structures described in Patent Documents 1 and 2, it is difficult to obtain a clear sense of engagement because the magnetic force changes continuously.

In addition, in the structure in which the ball is in contact with the engaging gear as in the structure described in Patent Document 3, since the tooth portion and the ball are in point contact, early wear of the tooth portion and a decrease in the engagement feeling during use tend to occur. question

In particular, in a manual pulse generating device, since the engaging operation is frequently performed, the engaging mechanism is required to have sufficient durability, but it is difficult to obtain sufficient durability in the structure described in Patent Document 3.

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