TW201546599A - Manual pulse generator - Google Patents

Abstract

The present invention provides a manual pulse generator having an engaging mechanism which can obtain clear and definite perception of engagement in rotating a rotator and excellent durability. In a sensor unit 10 of the manual pulse generator, if a rotator 6 is rotated through manual operation, then a sensor part 8 is used to detect the rotation and a pulse is generated based on the result of detection. In addition, an engaging mechanism 7a is provided between the rotator 6 and a supporting body 200. In the engaging mechanism 7a, an abutting member 70, which is engageable with teeth 633 of an engaging gear 63 is an axle 71. The axle 71 is pushed against an outer peripheral surface 630 of the engaging gear 63 by a spring member 75 comprising a coil spring 76. The axle 71 has a length longer than the width of the teeth 633 and abuts over the entire width of the teeth 633.

Description

Manual pulse generating device

The present invention relates to a manual pulse generating device that generates pulses by hand.

A manual pulse generating device for setting a processing condition of a numerically controlled working machine such as an integrated processing machine or an operation confirmation in an electronic device is a rotating body such as a turntable when a rotating body such as a turntable is manually rotated. The angle of rotation produces a pulse. In such a manual pulse generating device, an engaging mechanism is provided for the rotating body, and the operating feeling of the rotating body is improved, and the stop position of the rotating body is controlled. As the above-described engagement mechanism, a configuration in which the magnetic force between the magnets is used has been proposed (see Patent Documents 1 and 2). Further, a configuration has been proposed in which the ball is brought into contact with the engaging gear provided in the rotating body (see Patent Document 3).

[Previous Technical Literature] [Patent Literature]

[Patent Document 1] Japanese Patent Laid-Open No. Hei 10-113837

[Patent Document 2] Japanese Patent Publication No. Hei 4-55727

[Patent Document 3] Japanese Patent Publication No. 2-11017

However, in the case of using the magnetic force between the magnets as in the configuration described in Patent Documents 1 and 2, the magnetic force continuously changes, so that it is difficult to obtain a clear sense of engagement. Further, as in the configuration described in Patent Document 3, the spherical body is in contact with the engaging gear, and the tooth portion is in point contact with the spherical body. Therefore, the wear of the tooth portion is likely to be fast, and the feeling of engagement is lowered during use. And other issues. In particular, in the manual pulse generator, the engagement operation is frequently performed, so that the engagement mechanism is required to have sufficient durability. However, the configuration described in Patent Document 3 is difficult to obtain sufficient durability.

In view of the above problems, an object of the present invention is to provide a manual pulse generating device that can obtain a clear engagement feeling when rotating a rotating body and has excellent durability.

In order to solve the above problems, the present invention is a manual pulse generating device comprising: a support; a rotating body rotatably supported by the support and rotated by hand; and a sensor portion Detecting rotation of the rotating body; and generating a pulse based on a detection result in the sensor unit, wherein the manual pulse generating device is provided with an engagement mechanism between the rotating body and the support, the engagement The mechanism includes: an engaging gear on a side of the rotating body, wherein a plurality of teeth are arranged in a circumferential direction on the outer circumferential surface; and the abutting member is provided to extend in a direction of a rotation axis of the engaging gear to abut the above a contact portion of the tooth; and a spring member that presses the contact member against the outer circumferential surface of the engagement gear; and the support body is provided with a spring pressure adjustment mechanism that adjusts a spring pressure of the spring member.

In the present invention, when the rotating body is rotated by hand, the rotation is detected by the sensor portion, and a pulse is generated based on the detection result. Further, since the engagement mechanism is provided between the rotating body and the support, the rotating body can be stopped at a specific angular position. Further, the engagement with the teeth of the engagement gear has an abutting member that extends in the direction of the rotation axis of the engagement gear and abuts against the contact portion of the tooth. Therefore, the contact area with respect to the teeth is large. Therefore, the feeling of engagement can be reliably obtained, and the wear of the teeth or the like can be suppressed. Further, when the abutting portion extending in the rotational axis direction of the engaging gear abuts against the configuration of the engaging gear, it is particularly necessary to appropriately set the abutting pressure. However, if the spring pressure adjusting mechanism is set, it can be appropriately Set the abutment pressure.

In the invention, it is preferable that the abutting member is a rod-shaped shaft extending in a direction of a rotation axis of the engaging gear. According to the above configuration, the outer peripheral surface (contact portion) abuts against the teeth regardless of which direction the shaft faces.

In the invention, it is preferable that the abutting portion has a length equal to or larger than a width of the tooth in the axial direction, and is in contact with the entire axial direction of the tooth. According to the above configuration, the contact area with respect to the teeth is larger than the case where the abutting portion abuts on one of the axial directions of the teeth. Therefore, abrasion of the teeth and the like can be suppressed.

In the invention, it is preferable that the spring pressure adjusting mechanism has a screw member movably supported by the support body side in a bending direction of the spring member. According to the above configuration, the load in the engaging mechanism can be easily adjusted, and the engaging mechanism can be easily assembled.

In the present invention, it is preferable that the spring member is a coil spring, and a portion of the coil spring that abuts against the abutting member is an end surface of an end portion of the wire constituting the coil spring that does not protrude toward the abutting member. According to the above configuration, since the hook of the coil spring and the abutting member can be suppressed, the coil spring can be directly brought into contact with the abutting member.

In the invention, it is preferable that the sensor portion has a permanent magnet that rotates in conjunction with the rotating body; and a magnetic sensor element that is held on the support side. According to the configuration described above, unlike the optical sensor, even when foreign matter such as oil adheres to the sensor portion, the rotation of the permanent magnet (rotation of the rotating body) can be appropriately detected.

In the present invention, it is preferable that the signal of the phase A detected by the sensor unit coincides with the level of the signal of the phase B, and the abutting member invades the circumferential direction of the plurality of teeth to the maximum extent. The time between the adjacent two teeth is the same. According to the above configuration, in the state where the rotating body is stopped by the engaging mechanism, the signal of the A phase can be aligned with the level of the signal of the B phase.

In the present invention, it is preferable to provide an angular position of the permanent magnet on the side of the rotating body, an angular position of the engaging gear on the side of the rotating body, and the abutting An angular position adjustment mechanism for at least one of the angular positions of the members. According to the above configuration, the time at which the engagement feeling is obtained can be matched with the time of the output pulse.

In the invention, it is preferable that an angular position adjusting mechanism that adjusts at least one of an angular position of the permanent magnet on the rotating body side and an angular position of the magnetic sensor element on the support side is provided. According to the above configuration, the angular position of the rotating body can be matched with the time of the output pulse.

In the manual pulse generating device of the present invention, when the rotating body is rotated by hand, the rotation is detected by the sensor portion, and a pulse is generated based on the detection result. Further, since the engagement mechanism is provided between the rotating body and the support, the rotating body can be stopped at a specific angular position. Moreover, since the engagement with the teeth of the engaging gear is a shaft, the contact area with respect to the teeth is large. Therefore, the feeling of engagement can be reliably obtained, and the wear of the teeth or the like can be suppressed. Further, when the shaft is brought into contact with the engagement gear, the contact pressure must be appropriately set. However, if the spring pressure adjustment mechanism is provided, the contact pressure can be appropriately set.

1‧‧‧Manual pulse generator

2‧‧‧Connected components

3‧‧‧Washers

6‧‧‧Rotating body

7a‧‧‧Cordging mechanism

7b‧‧ ‧ spring pressure adjustment mechanism

7c‧‧‧Angle position adjustment mechanism

8‧‧‧Sensor Department

10‧‧‧Sensor unit

11‧‧‧Shell

12‧‧‧1st casing member

13‧‧‧2nd casing member

14‧‧‧ Turntable

15‧‧‧ circuit board

16a, 16b‧‧‧ switch handle

17‧‧‧ cable

18‧‧‧ Machine

21‧‧‧Flange

22‧‧‧Cylinder

23‧‧‧The hole in the cylinder

26‧‧‧Setting screws

51‧‧‧Sensor cover

52‧‧‧Sensor housing

53‧‧‧ shaft seat

54‧‧‧Sensor substrate

55a, 55b‧‧‧ bearing

56‧‧‧Magnetic sensor components

57‧‧‧Magnetoresistive components

58‧‧‧Component holder

59‧‧‧ element substrate

61‧‧‧Rotary axis

62‧‧‧Magnetic cage

63‧‧‧Snap gear

64‧‧‧ fixed board

65‧‧‧ permanent magnet

70‧‧‧Abutment components

71‧‧‧Axis

75‧‧‧Spring components

76‧‧‧Helical spring

81a, 81b‧‧‧ signals

82a, 82b‧‧‧ rectangular pulse

86‧‧‧Time

100‧‧‧ device body

110‧‧‧Operation surface

121‧‧‧ tablet

123‧‧‧ Front Board

123a‧‧‧ openings

123b‧‧‧ recess

124‧‧‧Side plate department

129‧‧‧ mark

131‧‧‧screw

143, 144‧‧ screws

152a, 152b‧‧‧ Rotary switch

153, 172‧‧‧ connectors

173‧‧‧Connector

174‧‧‧ bushing

181‧‧‧Connector

200‧‧‧Support

511‧‧‧Cylinder

512‧‧‧round board

513, 514‧‧ ‧ convex

516a, 516b‧‧‧ cylindrical protrusion

521‧‧‧ bottom plate of the sensor housing

522‧‧‧The cylindrical body of the sensor housing

531‧‧‧Connected board

535‧‧‧ angular column

536a, 536b‧‧‧ incision

537‧‧‧Axis support hole

538‧‧‧ hole

538a‧‧‧ front part

538b‧‧‧ rear part

539‧‧‧Setting screws (screw components)

570, 571a, 571b‧‧‧ magnetic induction patterns

572‧‧‧terminal

575a, 575b, 576a, 576b‧‧‧ eliminate patterns

618, 619‧‧‧ flat surface

621‧‧‧Cylinder

622‧‧‧1st round plate

622a‧‧‧ screw holes

623‧‧‧2nd Disc Department

623a‧‧‧ screw holes

624‧‧‧ convex

625‧‧‧ hole

627‧‧‧Setting screws

630‧‧‧ outer perimeter

631‧‧‧ Side panel

632‧‧‧Round Department

632a‧‧ hole

633‧‧‧ teeth

634‧‧‧ slots

639‧‧‧screw

641‧‧‧The Ministry of the Ring

641a‧‧ hole

642‧‧‧ convex

643‧‧‧ long hole

650‧‧‧ outer perimeter

651‧‧‧

694‧‧‧screw

701‧‧‧Apartment

GND‧‧‧ Grounding

L‧‧‧Rotation center axis

L1‧‧‧Operation side

L2‧‧‧ back side

R‧‧‧ circumferential direction

R1‧‧‧ one side of the circumferential direction

R2‧‧‧ the other side of the circumferential direction

R2-1, R3-1, R4-1, R5-1‧‧‧1st reverse pattern

R2-2, R3-2, R4-2, R5-2‧‧‧2nd reverse pattern

S1‧‧‧1st Section

S2‧‧‧2nd Section

S3‧‧‧3rd Section

Section 4 of S4‧‧

S5‧‧‧5th Section

Fig. 1 is an explanatory view showing the appearance of a manual pulse generating device to which the present invention is applied.

Figure 2 is an exploded perspective view of a manual pulse generating device to which the present invention is applied.

Figure 3 is an exploded perspective view of a sensor unit for use with a manual pulse generating device of the present invention.

Figure 4 is a cross-sectional view of a sensor unit for use with a manual pulse generating device of the present invention.

5(a) and 5(b) are explanatory views of a magnetoresistive element to which the manual pulse generating device of the present invention is applied.

6(a) to 6(c) are explanatory diagrams of detection signals and the like in a magnetoresistive element to which the manual pulse generating device of the present invention is applied.

7(a) and 7(b) are explanatory views of an engagement mechanism or the like of a sensor unit to which the manual pulse device of the present invention is applied.

Figure 8 is a perspective view of a shaft seat for the engaging mechanism shown in Figure 7.

Fig. 9 is a perspective view showing a permanent magnet or the like of a sensor unit to which the manual pulse generating device of the present invention is applied, viewed from the back side.

A manual pulse generating device to which the present invention is applied will be described with reference to the drawings.

(The overall composition of the manual pulse generating device)

Fig. 1 is an explanatory view showing the appearance of a manual pulse generating device 1 to which the present invention is applied. Fig. 2 is an exploded perspective view of the manual pulse generating device 1 to which the present invention is applied. In FIG. 2 and the like, L1 is indicated on the operation surface side in the direction in which the rotation center axis L of the rotary body 6 is extended (the rotation center axis L direction), and L2 is indicated on the back surface side.

In the manual pulse generator 1 shown in FIGS. 1 and 2, a turntable 14 that is manually rotated is disposed on the front surface of the apparatus main body 100, and a mark 129 indicating a reference position or polarity is attached around the turntable 14. The turntable 14 is configured to rotatably support the rotating body 6 together with the rotating shaft 61 described below, and the rotating body 6 is rotatably supported by the support body 200 such as the casing 11 or the sensor housing 52. The front surface of the device body 100 thus constructed is the operating surface 110.

The front surface (operation surface 110) of the apparatus main body 100 is provided with switching levers 16a and 16b for switching the attributes of the pulses to be outputted, and a flat plate 121 to which the scales for the switching levers 16a and 16b are attached. Further, a cable 17 is pulled out from the lower end portion of the apparatus body 100. The cable 17 and the device body 100 are connected by a bushing 174. A connector 173 is mounted at the front end of the cable 17, and the connector 173 is coupled from the manual pulse generating device 1 to the connector 181 of the machine 18 that outputs the pulse. The manual pulse generating device 1 is supplied with power from the machine 18 in a state where the cable 17 is connected to the machine 18.

The manual pulse generating device 1 generates a pulse if the turntable 14 is rotated by hand. The pulse is controlled by a cable 17 to a numerically controlled working machine or an electronic machine such as a comprehensive processing machine. The output of the machine 18 is used for condition setting and operation confirmation in the machine 18. In this form, the machine 18 coefficient value controls the work machine. The switching levers 16a, 16b are used, for example, to select the X-axis, the Y-axis, and the Z-axis in the numerical control work machine and to select the sensitivity.

As shown in FIG. 2, the casing 11 has a first casing member 12 constituting the front surface side (operation surface side L1) of the apparatus main body 100 and a second casing member 13 constituting the back side L2 of the apparatus main body 100. The first casing member 12 has a rectangular front plate portion 123 on the operation surface side L1 and a side plate portion 124 that protrudes from the four edges of the front plate portion 123 toward the back surface side L2. In the front plate portion 123, an opening portion 123a is formed at a position overlapping the turntable 14, and a circular recess portion 123b is formed around the opening portion 123a. The second casing member 13 is coupled to the first casing member 12 by a screw 131 in a state of covering the opening of the back side L2 of the first casing member 12. In the present embodiment, the first casing member 12 and the second casing member 13 are made of resin, but they may be made of metal.

The sensor unit 10 or the circuit board 15 is disposed between the first casing member 12 and the second casing member 13 , and the sensor unit 10 is provided with a screw (not shown) via the annular gasket 3 The plate portion 123 is fixed to the front portion of the first case member 12. The circuit board 15 is configured with a circuit (not shown) for outputting a pulse generated based on the detection result in the sensor unit 10, and is fixed to the front plate of the first casing member 12 by a screw (not shown) or the like. Department 123. Rotary switches 152a and 152b to which the switching levers 16a and 16b are connected are mounted on the circuit board 15. Further, the cable 17 is connected to the circuit board 15 via, for example, the connectors 153 and 172.

The rotating body 6 has a rotating shaft 61 that protrudes from the sensor unit 10, a connecting member 2 that is fixed to the rotating shaft 61, and a turntable 14 that is fixed to the connecting member 2 by screws 143 and 144. The rotating shaft 61 protrudes from the opening 123a of the plate portion 123 before the first casing member 12 toward the operation surface side L1, and the turntable 14 is coupled to the protruding portion via the connecting member 2. Therefore, when the turntable 14 is rotated by the manual on the operation surface side L1, the rotary shaft 61 rotates. The sensor unit 10 detects the rotation angle of the rotating shaft 61 and outputs the detection result to the circuit substrate 15. As a result, the circuit board 15 generates a pulse corresponding to the rotation of the turntable 14, and outputs it via the cable 17. In the present embodiment, 100 turns are attached around the turntable 14 The scale is used, and the mark 129 is used as an index, and the scale of the turntable 14 outputs one pulse for each advance.

(The overall composition of the sensor unit 10)

Fig. 3 is an exploded perspective view of the sensor unit 10 for the manual pulse generating device 1 to which the present invention is applied. Figure 4 is a cross-sectional view of the sensor unit 10 for use with the manual pulse generating device 1 of the present invention.

As shown in FIG. 3 and FIG. 4, the sensor unit 10 has a cup-shaped sensor housing 52 that is open on the operation surface side L1, and is coupled to the sensor in such a manner as to close the opening of the sensor housing 52. a sensor cover 51 of the housing 52 and a shaft seat 53 fixed to the sensor housing 52, and the sensor housing 52, the sensor cover 51 and the shaft base 53 are the same as those described with reference to FIG. 11 constitutes a support 200 in the same place.

The sensor case 52 has a bottom plate portion 521 on the back side L2 and a cylindrical tubular body portion 522 that protrudes from the outer edge of the bottom plate portion 521 toward the operation surface side L1. The sensor cover 51 is made of a resin, and has a cylindrical portion 511 and a disk portion 512 which is expanded in the vicinity of the end portion of the back surface side L2 of the cylindrical portion 511. In the disk portion 512, two convex portions 513 and 514 extending in an arc shape in the circumferential direction are formed at two locations spaced apart in the circumferential direction. Inside the cylindrical portion 511, the annular bearings 55a, 55b are held at positions spaced apart in the direction of the rotation axis L, and the rotary shaft 61 is rotatably supported by the support body 200 via the bearings 55a, 55b (sensor) Cover 51).

Inside the sensor housing 52, an annular engagement gear 63 for constituting the engagement mechanism 7a is concentrically coupled to the rotation shaft 61, and is coupled to the engagement gear 63 on the back side L2, on the rotation axis. A magnet holder 62 is concentrically coupled to the 61. The engaging gear 63 and the magnet holder 62 constitute the rotating body 6 together with the turntable 14 and the like described with reference to FIG. 1 and the like. Further, the connecting member 2 has a cylindrical portion 22 to which the end portion on the front side of the rotating shaft 61 is fitted, and a flange portion 21 in which the front end of the cylindrical portion 22 is expanded. As shown in FIG. 4, the positioning screw 26 is fixed to the hole 23 formed in the cylindrical portion 22 so that the front end thereof touches the rotating shaft 61, and the connecting member 2 is rotated. The rotating shaft 61 is coupled. The portion touched by the front end of the set screw 26 in the outer peripheral surface of the rotary shaft 61 becomes a flat surface 618.

(Configuration of the sensor unit 8)

Fig. 5 is an explanatory view of a magnetoresistive element 57 for a manual pulse generating device 1 to which the present invention is applied, and Figs. 5(a) and (b) are explanatory views showing an example of the magnetoresistive element 57, and a schematic representation of the magnetic resistance. An illustration of an example of a magnetic induction pattern of element 57. 6 is an explanatory diagram for detecting signals and the like in the magnetoresistive element 57 of the manual pulse generating device 1 to which the present invention is applied, and FIGS. 6(a), (b), and (c) are signals output from the magnetoresistive element 57. The explanatory diagram, the explanatory diagram of the rectangular pulse of the A phase, and the explanatory diagram of the rectangular pulse of the B phase. In the following description, the first cycle of the signal shown in FIG. 6(a) is λ, and the one cycle corresponds to the distance between the N pole and the N pole shown in FIG. 5(a) (S pole). The distance from the S pole).

A sensor portion 8 for detecting the rotation of the rotating shaft 61 (rotating body 6) is formed inside the sensor housing 52, and in the present embodiment, the sensor 8 is held by the rotating body 6 (the magnet holder 62). The annular permanent magnet 65 and the magnetic sensor element 56 held on the side of the support 200. The permanent magnet 65 is fixed to the magnet holder 62 via the fixing plate 64. The outer circumferential surface 650 of the permanent magnet 65 is alternately formed with an S pole and an N pole at equal angular intervals in the circumferential direction. Further, in the support body 200, the sensor cover 51 is fixed to the sensor substrate 54 so as to straddle the convex portions 513, 514, and the sensor substrate 54 is interposed with the component holder 58 to be mounted with magnetic sensing. Element 56. In this state, the magnetic sensor element 56 is opposed to the outer peripheral surface of the permanent magnet 65.

In the present embodiment, the magnetic sensor element 56 is a magnetoresistive element 57, and as shown in FIG. 5(a), a magnetic induction pattern including a magnetoresistive film is formed on the element substrate 59. In the present embodiment, the magnetic induction pattern has a phase A magnetic induction pattern 570A for generating a phase A signal and a phase B magnetic induction pattern 570B for generating a phase phase shift signal of a quarter phase with respect to the phase A signal. Further, the A-phase magnetic induction pattern 570A has a magnetic induction pattern 570A+ for the +A phase, and a magnetic induction pattern 570A for the -A phase for generating a signal opposite to the phase of the magnetic induction pattern 570A+ for the +A phase. . Further, the B-phase magnetic induction pattern 570B has a +B phase magnetic induction pattern 570B+ and a -B phase magnetic induction pattern 570B- which generates a signal opposite to the +B phase magnetic induction pattern 570B+. Therefore, four terminals 572A+, 572A-, 572B+, and 572B- are formed on the element substrate 59. Further, power supply lines 573e and 573f and a ground line 574 are formed on the element substrate 59, and end portions of the power supply lines 573e and 573f and the ground line 574 are formed so as to be aligned with the terminals 572A+, 572A-, 572B+, and 572B-. Terminals 572Vcce, 572Vccf, 572GND.

As shown in FIG. 5(a), in the magnetoresistive element 57 of the present embodiment, for example, the +A phase magnetic induction pattern 570A+ includes the first segment S1 (A+) and the first segment S1 (A+) in the circumferential direction. R (one side of the relative movement direction of the permanent magnet) side R1 is separated by a second section S2 (A+) of 1/2 cycle, and the other side R2 of the first section S1 (A+) is circumferentially R The third segment S3 (A+) of 1/2 cycle is separated. In the present embodiment, the first segment S1 (A+) includes the fourth segment S4 (A+), and the fifth segment S4 (A+) is separated from the fourth segment S1 on the one side in the circumferential direction R by 1/4 cycle. Section S5 (A+). Therefore, the second segment S2 (A+) is separated by 1/2 cycle from the fifth segment S5 (A+) on one side R1 of the circumferential direction R, and the third segment S3 (A+) is opposed to the fourth segment. (A+) is separated by 1/2 cycle on the other side R2 of the circumferential direction R. In the +A phase magnetic induction pattern 570A+ thus configured, the first segment S1 (A+), the second segment S2 (A+), the third segment S3 (A+), and the fourth segment S4 (A+) are tied to The terminal 572Vcce is connected in series with the terminal 572GND. Further, a terminal 572A+ is electrically connected between the fourth segment S4 (A+) and the fifth segment S5 (A+), and a terminal 572Vcce is connected to the second segment S2 (A+). A terminal 572GND is connected to the side of S3 (A+). In this way, a half bridge circuit for the +A phase is constructed.

As shown in FIG. 5(b), the fourth segment S4 (A+) has a first reverse pattern R4-1 and is adjacent to the other side R2 of the first reverse pattern R4-1 in the circumferential direction R. The second reverse pattern R4-2. Further, the fifth segment S5 (A+) has the first re-folding pattern R5-1 and the second re-folding pattern R5-2 adjacent to the first re-folding pattern R5-1 adjacent to one side R1 of the circumferential direction R1. . In the second segment S2 (A+), the second segment S2 (A+) has a second refraction pattern R2-1 that is separated from the first refraction pattern R5-1 by one-half cycle R1 on one side R1 in the circumferential direction R, and Relative to the second refraction pattern R5-2 in the circle The one side R1 of the circumferential direction R is separated by the second refraction pattern R2-2 of 1/2 cycle. Further, the third segment S3 (A+) has a first fold pattern R3-1 separated by 1/2 cycle from the other side R2 of the first reverse pattern R4-1 in the circumferential direction R, and The reverse folding pattern R4-2 is spaced apart from the other side R2 in the circumferential direction R by a second folding pattern R3-2 of 1/2 cycle.

As shown in FIG. 5(a), the other magnetic induction patterns (the magnetic sensing pattern 570A--phase, the magnetic sensing pattern 570B+ for the +B phase, and the magnetic sensing pattern 570B- for the phase B phase) are also basically formed with the magnetic sensing pattern 570A+ for the +A phase. the same.

More specifically, the -B phase magnetic induction pattern 570B includes the first segment S1 (B-), and is separated from the first segment S1 (B-) by one-half cycle on one side R1 of the circumferential direction R. The second segment S2 (B-) and the third segment S3 (B-) are separated by 1/2 cycle from the other side R2 of the first segment S1 (B-) in the circumferential direction R. In the present embodiment, the first segment S1 (B-) includes the fourth segment S4 (B-) and is spaced apart from the fourth segment S4 (B-) by one quarter of the R1 side of the circumferential direction R. The fifth segment S5 (B-). Therefore, the second segment S2 (B-) is separated by 1/2 cycle from the fifth segment S5 (B-) on one side R1 of the circumferential direction R, and the third segment S3 (B-) is opposite to the first segment The fourth section S4 (B-) is separated by 1/2 cycle on the other side R2 of the circumferential direction R. Among the B-phase magnetic induction patterns 570B- thus configured, the first segment S1 (B-), the second segment S2 (B-), the third segment S3 (B-), and the fourth segment S4 ( B-) is connected in series between the terminal 572Vcce and the terminal 572GND. Further, a terminal 572B- is electrically connected between the fourth segment S4 (B-) and the fifth segment S5 (B-), and a terminal 572Vcce is connected to the side of the second segment S2 (B-). A terminal 572GND is connected to the side of the third sector S3 (B-). In this way, a half-bridge circuit for the -B phase is constructed.

Here, the +A phase magnetic induction pattern 570A+ and the -B phase magnetic induction pattern 570B are arranged alternately in the circumferential direction, and for example, the fourth segment S4 (A+) is opposed to the fourth segment S4 (B). -) 1/8 cycle is separated by one side R1 in the circumferential direction R.

Then, with respect to the position where the region of the magnetic induction pattern 570A+ and the -B phase magnetic induction pattern 570B- disposed with the +A phase is adjacent to the direction in which the central axis of rotation L extends, the magnetic sensing pattern 750A for the -A phase includes the first 1 segment S1 (A-), relative to the first segment S1 (A-) One side R1 of the circumferential direction R is separated by 1/2 cycle of the second segment S2 (A-), and the first segment S1 (A-) is spaced apart by 1/2 of the other side R2 of the circumferential direction R The third segment S3 (A-) of the cycle. The first segment S1 (A-) includes a fourth segment S4 (A-) and a fifth region which is separated by 1/4 cycle from one side R1 of the fourth segment S4 (A-) in the circumferential direction R Segment S5 (A-). Therefore, the second segment S2 (A-) is separated by 1/2 cycle from the fifth segment S5 (A-) on one side R1 in the circumferential direction R, and the third segment S3 (A-) is opposed to the fourth segment. The segment S4 (A-) is separated by 1/2 cycle on the other side R2 of the circumferential direction R. In the magnetic phase sensing pattern 570A- of the A phase configured in this manner, the first segment S1 (A-), the second segment S2 (A-), the third segment S3 (A-), and the fourth segment S4 (A-) is connected in series between the terminal 572Vccf and the terminal 572GND. Further, a terminal 572A- is electrically connected between the fourth segment S4 (A-) and the fifth segment S5 (A-), and a terminal 572Vccf is connected to the second segment S2 (A-). A terminal 572GND is connected to the side of the third block S3 (A-). In this way, a half-bridge circuit of the -A phase is constructed. In the magnetic phase sensing pattern 570A- of the A phase configured as described above, the fourth segment S4 (A-) and the fifth segment S5 (A+) of the +A phase magnetic induction pattern 570A+ are located at the same position in the circumferential direction R, but When viewed from the side where the terminals 572A+ and 572A- are connected, the fourth segment S4 (A-) and the fifth segment S5 (A+) of the +A phase magnetic induction pattern 570A+ are located on the opposite side to the circumferential direction R. Therefore, the waveform output from the terminals 572A+ and 572A- becomes a reverse phase.

Then, the +B phase magnetic induction pattern 570B+ includes the first region with respect to a position in which the region of the magnetic induction pattern 570A+ and the -B phase magnetic induction pattern 570B- disposed with the +A phase is adjacent to the direction in which the rotation center axis L extends. The segment S1 (B+), the second segment S2 (B+) separated by one-half cycle from the one side R1 of the first segment S1 (B+) in the circumferential direction R, and the first segment S1 (B+) The other side R2 in the circumferential direction R is separated by the third segment S3 (B+) of 1/2 cycle. The first segment S1 (B+) includes the fourth segment S4 (B+) and the fifth segment S5 (B+) separated from the fourth segment S4 (B+) by one quarter of the circumferential direction R1 by 1/4 cycle. ). Therefore, the second segment S2 (B+) is separated by 1/2 cycle from the fifth segment S5 (B+) on one side R1 of the circumferential direction R, and the third segment S3 (B+) is opposed to the fourth segment S4. (B+) is separated by 1/2 cycle on the other side R2 in the circumferential direction R. Here, the +B phase magnetic induction pattern 570B+ and the -A phase magnetic induction pattern 570A are used in the circumferential direction. The directions are alternately arranged, and for example, the fourth segment S4 (B+) is separated by 1/8 cycle from the other side R2 of the fourth segment S4 (A-) in the circumferential direction R. In the +B phase magnetic induction pattern 570B+ thus configured, the first segment S1 (B+), the second segment S2 (B+), the third segment S3 (B+), and the fourth segment S4 (B+) are at the terminals. 572Vccf is connected in series with terminal 572GND. Further, a terminal 572B+ is electrically connected between the fourth segment S4 (B+) and the fifth segment S5 (B+), and a terminal 572Vccf is connected to the second segment S2 (B+). A terminal 572GND is connected to the side of S3 (B+). In this way, a half bridge circuit for the +B phase is constructed. In the +B phase magnetic induction pattern 570B+ thus configured, the fourth segment S4 (B+) and the fifth segment S5 (B-) of the -B phase magnetic induction pattern 570B+ are located at the same position in the circumferential direction R, but When viewed from the side where the terminals 572B+ and 572B- are connected, the fourth segment S4 (B+) and the fifth segment S5 (B-) of the -B phase magnetic induction pattern 570B+ are located on the opposite side in the circumferential direction R. Therefore, the waveform output from the terminals 572B+ and 572B- becomes a reverse phase.

In the sensor unit 8 configured as described above, when the rotating body 6 (the permanent magnet 65) rotates, the difference between the signals output from the terminals 572A+ and 572A- is the signal A of the phase A indicated by the solid line in Fig. 6(a). The difference between the signals output from the terminals 572B+ and 572B- is the signal 81b of the B phase indicated by the broken line in Fig. 6(a). The signal is converted into the A-phase rectangular pulse 82a and the FIG. 6 (c) shown in FIG. 6(b) by a semiconductor device mounted on the sensor substrate 54 or a comparator mounted on the circuit substrate 15. The rectangular phase 82b of the B phase is shown, and the rectangular pulses 82a, 82b are output via the cable 17.

In this manner, when the rectangular pulses 82a, 82b are generated, as described with reference to FIG. 5, in the magnetoresistive element 57, the magnetic induction pattern 570A+ for the +A phase and the magnetic induction pattern 570A-, +B for the phase A are used. The 570B+ and -B phase magnetic induction patterns 570B- have a first segment S1 (fourth segment S4 and fifth segment S5) separated by a half cycle in the circumferential direction R, and second segment S2 and third, respectively. Section S3. Therefore, deformation or the like is generated in the detection signal due to the coercive force of the magnetic induction pattern of the magnetoresistive element 57. For example, in the +A phase magnetic induction pattern 570A+, the fourth segment S4 (A+) and the fifth segment S5 (A+) constituting the first segment S1 (A+) are opposed to the N pole. When the second segment S2 (A+) and the third segment S3 (A+) are opposed to the S pole, even if the coercive force of the magnetic induction pattern of the magnetoresistive element 57 has characteristics with respect to polarity asymmetry or the like, it can be suppressed. Deformation or the like is generated in the detection signal. Further, since the second segment S2 and the third segment S3 are disposed on both sides of the first segment S1 (the fourth segment S4 and the fifth segment S5), the arrangement can be shortened in the magnetoresistive element 57. There are dimensions of the circumferential direction R of the region of the magnetic induction pattern 570A for the A phase and the magnetic induction pattern 570B for the B phase.

(magnetic shielding structure)

In FIGS. 2 and 3, in the present embodiment, the permanent magnet 65 and the magnetic sensor element 56 are used in the sensor portion 8. Therefore, the magnetic shield is provided to the sensor 8 at least on the back side L2. In the present embodiment, the bottom plate portion 521 of the sensor case 52 is formed by a magnetic material such as steel such as self-pumped phase conjugation (SPPC), and the bottom plate portion 521 is covered by the back surface side L2. The magnetic shield of the sensor portion 8. Here, in the sensor case 52, since the bottom plate portion 521 is integrated with the cylindrical body portion 522, the body of the sensor case 52 contains a magnetic material. Therefore, the sensor portion 8 is surrounded by the cylindrical body portion 522 of the sensor case 52, that is, the magnetic shield. Furthermore, in this embodiment, the sensor cover 51 is made of resin. Therefore, the sensor portion 8 is not covered by the magnetic shield on the operation surface side L1.

(Configuration of the engagement mechanism 7a and the spring pressure adjustment mechanism 7b)

Fig. 7 is an explanatory view of an engagement mechanism 7a or the like of the sensor unit 10 to which the manual pulse generator 1 of the present invention is applied, and Figs. 7(a) and (b) are views of the engagement gear 63 from the back side L2. The obtained perspective view and the rear view of the engaging gear 63 and the like from the back side L2. Fig. 8 is a perspective view of a shaft base 53 for the engaging mechanism 7a shown in Fig. 7.

As shown in FIGS. 3 and 4, the magnet holder 62 has a cylindrical portion 621, a first disc portion 622 that is expanded in diameter at the end portion of the back surface side L2 of the cylindrical portion 621, and a first disc portion. 622 is a second disc portion 623 which is expanded in diameter on the back side L2. In the first disc portion 622, a positioning screw 627 is fixed to the hole 625 penetrating in the radial direction so that the distal end thereof touches the rotating shaft 61, and the magnet holder 62 is coupled to the rotating shaft 61. In the present embodiment, in the outer peripheral surface of the rotating shaft 61, the positioning screw The portion touched by the front end of the staple 627 is a flat surface 619. Further, in the magnet holder 62, a screw hole 622a for fixing the engagement gear 63 is formed in the first disc portion 622, and a screw hole 623a for fixing the permanent magnet 65 is formed in the second disc portion 623.

An annular engagement gear 63 is disposed to overlap the first disk portion 622 on the operation surface side L1. In the present embodiment, the engaging gear 63 has an annular portion 632 and a side plate portion 631 that protrudes from the outer edge of the annular portion 632 toward the operation surface side L1, and is formed at equal angular intervals on the outer peripheral surface 630 of the side plate portion 631. A plurality of teeth 633 and grooves 634. Further, a hole 632a is formed in the annular portion 632, and the penetration hole 632a fixes the screw 639 to the screw hole 622a of the first disc portion 622 of the magnet holder 62, thereby fixing the engagement gear 63 to the first one. The circular plate portion 622.

As shown in FIG. 4 and FIG. 7, in the sensor cover 51, a resin shaft seat 53 is attached to the back side L2 of the disc portion 512, and a card is disposed between the shaft seat 53 and the engagement gear 63. The abutting member 70 that abuts the outer peripheral surface 630 of the gear 63 and the spring member 75 that presses the abutting member 70 toward the outer peripheral surface 630 of the engaging gear 63. In the present embodiment, the abutting member 70 has an abutting portion 701 that extends in the direction of the rotation axis L of the engaging gear 63 and abuts against the teeth 633. In the present embodiment, the abutting member 70 is a rod-shaped shaft 71 extending in the direction of the central axis of rotation L, and the abutting portion 701 is constituted by a portion of the outer peripheral surface facing the side of the engaging gear 63. In the present embodiment, the shaft 71 is made of metal. Here, the shaft 71 (abutment portion 701) has a length equal to or greater than the width of the tooth 633 in the direction of the rotation center axis L, and abuts against the entirety of the direction of the rotation center axis L of the tooth 633.

The spring member 75 is a coil spring 76, and a portion of the coil spring 76 that abuts against the shaft 71 becomes an end surface of the end portion of the wire constituting the coil spring 76 that does not protrude toward the shaft 71.

In the present embodiment, when the sensor cover 51 holds the shaft 71 and the coil spring 76, the shaft base 53 shown in Fig. 8 is used. The shaft base 53 has a connecting plate portion 531 that overlaps the disk portion 512 of the sensor cover 51 on the back side L2, and an angular column portion 535 that protrudes from the center in the circumferential direction of the connecting plate portion 531 toward the back side L2, and The angled post portion 535 is formed with a circular bore 538 that extends radially therethrough. Further, in the angular column portion 535, a radially inner side is formed along the rotation center axis The shaft extending in the L direction supports the hole 537, and the hole 538 is connected to the central portion of the shaft support hole 537. In the connecting plate portion 531, slits 536a and 536b which are respectively fitted into the two cylindrical protrusions 516a and 516b which protrude from the back side L2 of the disc portion 512 of the sensor cover 51 are formed. Therefore, in a state in which the connecting plate portion 531 of the shaft base 53 is overlapped with the circular plate portion 512 of the sensor cover 51 so that the cylindrical projections 516a and 516b are fitted into the slits 536a and 536b, the cylindrical projection 516a can be used. When the 516b is screwed or pressed, the shaft base 53 can be fixed to the sensor cover 51.

As shown in FIG. 4, a shaft 71 is housed in the shaft support hole 537, and a coil spring 76 is housed in the hole 538. Further, the hole 538 has an inner diameter on the side where the front side portion 538a of the shaft 71 is located opposite to the side opposite to the side where the shaft 71 is located, and the rear side portion 538b becomes a screw hole having an inner diameter larger than the front side portion 538a. Here, the coil spring 76 is located at the front side portion 538a, and a set screw 539 is fixed to the rear side portion 538b. As a result, the coil spring 76 urges the shaft 71 toward the outer peripheral surface 630 of the engaging gear 63. In this way, the engaging mechanism 7a is constructed.

Further, the spring pressure of the coil spring 76 can be adjusted if the following steps can be performed. For example, after the engagement gear 63 is attached to the rotary shaft 61 by the spacer magnet holder 62, the shaft holder 53 is fixed to the sensor cover 51 while the shaft 71 is housed in the shaft support hole 537. Then, after the coil spring 76 is inserted into the hole 538 of the shaft seat 53, the screw member, that is, the set screw 539 is fixed in the hole 538 from the radially outer side. Here, the set screw 539 is a screw member movably held by the support body 200 side (the shaft seat 53) in the bending direction of the coil spring 76 (spring member 75). Therefore, the spring pressure of the coil spring 76 can be adjusted by adjusting the locking amount of the set screw 539. In this way, the spring pressure adjusting mechanism 7b is constructed.

(Configuration of the angular position adjusting mechanism 7c of the permanent magnet 65)

Fig. 9 is a perspective view of the permanent magnet 65 or the like of the sensor unit 10 to which the manual pulse generating device 1 of the present invention is applied, as viewed from the back side L2.

As shown in FIG. 3, FIG. 4, and FIG. 9, the fixing plate 64 has an annular portion 641, and an annular convex portion that protrudes toward the operation surface side L1 is formed between the inner edge and the outer edge of the annular portion 641. 642. A permanent magnet is fixed on the outer peripheral side of the annular convex portion 642 by a method such as the following 65. The step portion 651 facing the radially inner side and the back side L2 is formed on the back side L2 of the permanent magnet 65, and the outer peripheral end portion of the annular portion 641 of the fixing plate 64 is in contact with the step portion 651. In the annular portion 641, a long hole 643 is formed in four places in the circumferential direction with respect to the radially inner side of the convex portion 642. Here, the long holes 643 extend in the circumferential direction.

In the present embodiment, after the permanent magnet 65 is fixed to the fixing plate 64, when the fixing plate 64 is fixed to the second disc portion 623 of the magnet holder 62, the screw 694 is fixed to the screw 694 from the back side L2 through the long hole 643. The screw hole 623a of the second disc portion 623. Here, in the second disc portion 623 of the magnet holder 62, a circular convex portion 624 is formed on the back surface side L2, and the convex portion 624 is fitted into the hole 641a of the annular portion 641 of the fixing plate 64. Thereby, the positioning of the fixing plate 64 and the permanent magnet 65 in the radial direction can be performed.

When the fixing plate 64 is fixed to the second circular plate portion 623 of the magnet holder 62 in this manner, the screw 694 is slowly positioned in advance, and the shaft portion and the long hole 643 of the screw 694 are used as guides, and the fixing plate 64 is adjusted. The angular position is thereafter locked by the screw 694, and the fixing plate 64 is fixed to the second circular plate portion 623 of the magnet holder 62. As a result, the angular position of the permanent magnet 65 is adjusted. In this way, the angular position adjusting mechanism 7c for the permanent magnet 65 is constructed.

According to the angular position adjusting mechanism 7c described above, the angular position of the permanent magnet 65 on the side of the rotating body 6 can be adjusted. Therefore, in Fig. 6, the timing 86 of the signal of the phase A of the phase A detected by the sensor unit 8 and the signal of the signal of the phase B of the phase B can be made 86, and the engaging mechanism 7a described with reference to Fig. 7 and the like. The time at which the shaft 71 is maximally intruded into the groove 634 between the two adjacent teeth 633 of the plurality of teeth 633 coincides.

(The main effect of this form)

As described above, in the manual pulse generator 1 of the present embodiment, when the rotary body 6 is rotated by hand, the rotation is detected by the sensor unit 8, and a pulse is generated based on the detection result. Here, the sensor portion 8 has a permanent magnet 65 that rotates in conjunction with the rotating body 6, and detects the rotation of the permanent magnet 65 by the magnetic sensor element 56 held on the side of the support 200. Therefore, unlike the optical sensor, even if the sensor portion 8 is attached When there is a foreign matter such as oil, the rotation of the permanent magnet 65 (rotation of the rotating body 6) can be appropriately detected.

Further, the magnetoresistive element 57 is used as the magnetic sensor element 56, and in the case of using the magnetoresistive element 57, with the pitch of the S pole and the S pole of the permanent magnet 65 (N pole and N pole) The movement of one pitch is obtained to obtain an output equivalent to two phases. Therefore, since the magnetization number can be 1/2 as compared with the use of the Hall element, the permanent magnet 65 can be made small, so that the sensor unit 10 and the manual pulse generating device 1 can be miniaturized.

Moreover, since the engaging mechanism 7a is provided between the rotating body 6 and the support body 200, the operational feeling is excellent, and the rotating body 6 can be stopped at a specific angular position. Further, in the engagement mechanism 7a, the abutting member 70 that engages with the teeth 633 of the engaging gear 63 has an abutting portion 701 that extends in the direction of the rotation axis L of the engaging gear 63 and abuts against the teeth 633. Therefore, the contact area of the abutting member 70 and the teeth 633 is large. Therefore, the feeling of engagement can be reliably obtained, and the abrasion or the like of the teeth 633 can be suppressed. Further, the abutting member 70 is a rod-shaped shaft 71 extending in the direction of the central axis of rotation L, and the abutting portion 701 includes a portion of the outer peripheral surface facing the side of the engaging gear 63. Therefore, the outer peripheral surface (the abutting portion 701) abuts against the teeth 633 regardless of the direction in which the shaft 71 faces. Further, the spring member 75 for the engaging mechanism 7a is a coil spring 76, and the portion of the coil spring 76 that abuts against the shaft 71 (the abutting member 70) becomes the end portion of the wire constituting the coil spring 76 and does not protrude toward the shaft 71. The end face. Therefore, the hooking of the coil spring 76 and the shaft 71 can be suppressed, so that the coil spring 76 can be directly brought into contact with the shaft.

Further, when the shaft 71 is brought into contact with the engagement gear 63, since the contact area between the contact member 70 (shaft 71) and the tooth 633 is large, it is necessary to appropriately set the contact pressure. Since the spring pressure adjusting mechanism 7b is provided, the abutting pressure can be appropriately set. Further, the shaft 71 has a length greater than the width of the teeth 633 and abuts against the entire width of the teeth 633. Therefore, the contact area with respect to the teeth 633 is larger than the case where the shaft 71 abuts against one of the width directions of the teeth 633. Therefore, abrasion or the like of the teeth 633 can be suppressed. Further, in the spring pressure adjusting mechanism 7b, the bending member of the spring member 75 (the coil spring 76) is used. A set screw 739 (screw member) movably held upward on the side of the support body 200. Therefore, the load in the engaging mechanism 7a can be easily adjusted, and the engaging mechanism 7a can be easily assembled.

Further, in the present embodiment, the time at which the signal 81a of the A phase detected by the sensor unit 8 coincides with the level of the signal 81b of the B phase is adjacent to the circumferential direction of the plurality of teeth 633 that the axis 71 is maximally invaded. The time of the groove 634 between the two teeth 633 is the same. Therefore, in a state where the rotating body 6 is stopped by the engaging mechanism 7a, the level 81 of the signal A of the phase A and the signal 81b of the phase B can be aligned. Further, in the present embodiment, the angular position of the permanent magnet 65 in the side of the rotating body 6 is adjusted, the angular position of the engaging gear 63 in the rotating body 6 side, and the angular position of the shaft 71 are provided in the side of the rotating body 6 The angular position adjustment mechanism 7c of the angular position of the permanent magnet 65. Therefore, the time at which the signal 81a of the A phase detected by the sensor unit 8 coincides with the level of the signal 81b of the B phase can be maximized and the axis 71 is invaded in the circumferential direction of the plurality of teeth 633. The time of the slots 634 between the teeth 633 is the same and the time at which the snap feel is obtained matches the time of the output pulse 85. Further, according to the angular position adjusting mechanism 7c, the angular position of the rotating body 6 can be matched with the timing of the output pulse 85. In particular, when the permanent magnet 65 and the magnetic sensor element 56 are used in the sensor unit 8, the magnetization position is not visible on the magnetic scale (the permanent magnet 65), and therefore it is difficult to match the above time during assembly, but according to Since the angular position adjusting mechanism 7c can adjust the angular position of the permanent magnet 65, it is easy to set the permanent magnet 65 at the optimum angular position.

Further, in the present embodiment, the magnetic shield body including the bottom plate portion 521 of the sensor case 52 including the magnetic material is provided on the back side L2 of the sensor portion 8. Therefore, even when the back side L2 of the manual pulse generator 1 is mounted on a processing machine or the like by a magnet, the influence of the magnet on the sensor unit 8 can be alleviated by the magnetic shield. Further, the cylindrical body portion 522 of the sensor case 52 covers the side of the sensor portion 8 as a magnetic shield. Therefore, magnetic shielding of the sensor portion 8 can be performed efficiently. On the other hand, in the support body 200, since the sensor cover 51 which closes the opening of the cylindrical main body portion 522 is made of a resin (non-magnetic material), the sensor cover 51 can be formed of a lightweight and inexpensive material. Further, since the sensor cover 51 is made of a resin (non-magnetic material), the sensor cover 51 is easily configured to hold the magnetic sensor element 56 or the shaft holder 53 for holding the engagement mechanism 7a.

Further, as described with reference to FIG. 5, in the magnetoresistive element 57, the +A phase magnetic induction pattern 570A+ and the -B phase magnetic induction pattern 570B are arranged in the -A phase magnetic induction pattern 570A- and the +B phase magnetic induction pattern. An area adjacent to the center axis of rotation L in the 570B+. Further, the +A phase magnetic induction pattern 570A+ and the -B phase magnetic induction pattern 570B- are provided on the both sides of the circumferential direction R of the first segment S1 to have a pattern of eliminating the deformation component of the output signal by 1/2 cycle (the first 2 segment S2 and third segment S3). Further, the -A phase magnetic induction pattern 570A- and the +B phase magnetic induction pattern 570B+ have a canceling pattern for reducing the deformation component of 1/2 period of the output signal on both sides of the circumferential direction R of the first segment S1 (2nd) Section S2 and third section S3). Therefore, it is possible to suppress deformation or the like in the detection signal due to the coercive force of the magnetic induction pattern of the magnetoresistive element 57, and in the magnetoresistive element 57, the magnetic induction pattern 570A for phase A and the magnetic induction pattern 570B for phase B can be shortened. The dimension of the circumferential direction R of the region.

(Other embodiments)

In the above embodiment, the angle position adjusting mechanism 7c adjusts the angular position of the permanent magnet 65 on the side of the rotating body 6 when adjusting the time during which the load is generated in the engaging mechanism 7a and the time of the output pulse 85. The angular position of the engaging gear 63 on the body 6 side, the angular position of the shaft 71, or the angular position adjusting mechanism of the angular position of the magnetic sensor element 56.

In the above embodiment, the spring member 75 for the engagement mechanism 7a is referred to as a coil spring 76, but a leaf spring or a disc spring or the like may be used. Further, in the above-described embodiment, the rod-shaped shaft 71 is used as the abutting member 70 having the abutting portion 701 that extends in the direction of the rotation axis L of the engaging gear 63 and abuts against the teeth 633, but When the engaging mechanism 7a is formed between the engaging gear 63 and the engaging member 7a, the abutting member 701 may be a rod-shaped or plate-shaped abutting member 70 having a circular arc shape.

In the present embodiment, when the magnetic shield is provided on the back side L2 of the sensor unit 8, the sensor case 52 is formed of a magnetic material, and the sensor case 52 can be formed by a non-magnetic material. On the other hand, a magnetic shield including a sheet-like magnetic material may be provided on the back side L2 of the sensor unit 8. Further, the second casing member 13 may be formed of a magnetic material, and the second casing member 13 may be a magnetic shield of the back side L2 of the sensor portion 8.

Further, in the present embodiment, the manual pulse generating device 1 is connected to the device 18 via the cable 17, but the manual pulse generating device 1 may be directly attached to the device 18.

2‧‧‧Connected components

3‧‧‧Washers

6‧‧‧Rotating body

7a‧‧‧Cordging mechanism

7b‧‧ ‧ spring pressure adjustment mechanism

8‧‧‧Sensor Department

10‧‧‧Sensor unit

21‧‧‧Flange

22‧‧‧Cylinder

23‧‧‧The hole in the cylinder

26‧‧‧Setting screws

51‧‧‧Sensor cover

52‧‧‧Sensor housing

54‧‧‧Sensor substrate

55a, 55b‧‧‧ bearing

56‧‧‧Magnetic sensor components

57‧‧‧Magnetoresistive components

58‧‧‧Component holder

59‧‧‧ element substrate

61‧‧‧Rotary axis

62‧‧‧Magnetic cage

63‧‧‧Snap gear

64‧‧‧ fixed board

65‧‧‧ permanent magnet

70‧‧‧Abutment components

71‧‧‧Axis

75‧‧‧Spring components

76‧‧‧Helical spring

200‧‧‧Support

511‧‧‧Cylinder

512‧‧‧round board

521‧‧‧ bottom plate of the sensor housing

522‧‧‧The cylindrical body of the sensor housing

535‧‧‧ angular column

537‧‧‧Axis support hole

538‧‧‧ hole

538a‧‧‧ front part

538b‧‧‧ rear part

539‧‧‧Setting screws (screw components)

618, 619‧‧‧ flat surface

621‧‧‧Cylinder

622‧‧‧1st round plate

623‧‧‧2nd Disc Department

623a‧‧‧ screw holes

624‧‧‧ convex

625‧‧‧ hole

627‧‧‧Setting screws

630‧‧‧ outer perimeter

631‧‧‧ Side panel

632‧‧‧Round Department

633‧‧‧ teeth

634‧‧‧ slots

639‧‧‧screw

641‧‧‧The Ministry of the Ring

641a‧‧ hole

642‧‧‧ convex

650‧‧‧ outer perimeter

651‧‧‧

701‧‧‧Apartment

L‧‧‧Rotation center axis

L1‧‧‧Operation side

L2‧‧‧ back side

Claims (13)

A manual pulse generating device comprising: a support; a rotating body rotatably supported by the support and rotated by hand; and a sensor portion detecting rotation of the rotating body; and based on the above a pulse generated by the detection result in the sensor unit, wherein the manual pulse generating device is provided with an engagement mechanism between the rotating body and the support, the engaging mechanism having an engaging gear that is tied to a plurality of teeth are arranged on the outer peripheral surface in the circumferential direction on the side of the rotating body, and the abutting member includes a contact portion that extends in the direction of the rotation axis of the engaging gear and abuts against the tooth; and a spring member. The abutting member is pressed against the outer circumferential surface of the engaging gear; and the support body is provided with a spring pressure adjusting mechanism that adjusts the spring pressure of the spring member. The manual pulse generating device of claim 1, wherein the abutting member is a circular rod-shaped shaft extending in a direction of a rotation axis of the engaging gear. The manual pulse generating device according to claim 1, wherein the abutting portion has a length equal to or greater than a width of the tooth in the axial direction, and abuts against the entire axial direction of the tooth. The manual pulse generating device according to claim 1, wherein the spring pressure adjusting mechanism is provided with a screw member movably supported by the support body side in a bending direction of the spring member. The manual pulse generating device according to claim 1, wherein the spring member is a coil spring, and a portion of the coil spring that abuts against the abutting member becomes an end portion of a wire constituting the coil spring and does not protrude toward the abutting member. The end face. The manual pulse generating device of claim 1, wherein the abutting member is along the card a circular rod-shaped shaft extending in a rotation axis direction of the gear, wherein the spring pressure adjustment mechanism is a screw member movably held by the support body side in a bending direction of the spring member, and the spring member is a coil spring, and the support system Forming a shaft support hole for receiving the shaft and a shaft seat for receiving the coil spring, the shaft support hole is formed to extend in a direction of a rotation center axis, and the hole is connected to a central portion of the shaft support hole, and the hole system is a front side portion including a side where the shaft is located, and a rear side portion opposite to a side where the shaft is located, wherein the front side portion and the rear side portion are different in inner diameter of the hole, and the rear side portion has an inner diameter larger than the front side A part of the screw hole, the coil spring is located at the front side portion, and the screw member is located at the rear side portion. The manual pulse generating device of claim 6, wherein the locking amount of the screw member in the screw hole is adjusted, and the spring pressure of the coil spring is adjusted. The manual pulse generating device according to any one of claims 1 to 7, wherein the sensor portion has a permanent magnet that rotates in conjunction with the rotating body; and a magnetic sensor element that is held on the support side. The manual pulse generating device of claim 8, wherein the time at which the signal of the phase A detected by the sensor portion coincides with the level of the signal of the phase B, and the abutting member are maximally intruded into the plurality of teeth The time between the grooves between the two adjacent teeth in the circumferential direction coincides. The manual pulse generating device according to claim 8, wherein at least one of an angular position of the permanent magnet on the side of the rotating body, an angular position of the engaging gear on the rotating body side, and an angular position of the abutting member is provided. Angle position Adjust the organization. The manual pulse generating device of claim 8, wherein an angular position adjustment of at least one of an angular position of the permanent magnet on the side of the rotating body and an angular position of the magnetic sensor element on the side of the support body is provided mechanism. A manual pulse generating device according to claim 10, wherein an angular position adjusting mechanism for adjusting an angular position of said permanent magnet on said rotating body side is provided. A manual pulse generating device according to claim 11, wherein an angular position adjusting mechanism for adjusting an angular position of said permanent magnet on said rotating body side is provided.