JP2010073481A - Rotating operation type input device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To properly receive rotating operation while elongating a life of a device. <P>SOLUTION: This device is provided with an operation body 81 held in free rotation on a supporting body, a rotation detecting means for detecting the rotation of the operation body 81, and a pushing detection means for detecting a pushing operation to the operation body 81. The rotation detecting means is provided with a magnet 82 of which the N pole and the S pole are magnetized alternately and arranged to move together with the operation body 81 and a GMR sensor 4 positioned opposed to the magnet 82 with a predetermined interval, and a magnetic field by the magnet 82 moving in conjunction with the rotation of the operation body 81 is detected by the GMR sensor 81. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

  The present invention relates to a rotary operation type input device, and more particularly to a rotary operation type input device that receives a rotary operation and a pressing operation with an operating body that is rotatably held.

Conventionally, a base on which a rotary electronic component is mounted is attached to the mounting base so as to be movable up and down, and the rotary electronic component is lowered by pressing a rotary knob. A rotary operation type input device that presses a switch contact has been proposed (see, for example, Patent Document 1). In the rotary electronic component of the rotary operation type input device, the slider fixed to the rotary knob is slid on the resistor pattern (or switch pattern) provided on the flexible substrate fixed to the base. The rotating operation is accepted according to the sliding position.
Japanese Patent No. 3401668

  However, since the conventional rotary operation type input device as described above includes a so-called contact-type rotary electronic component that slides the slider on the resistor pattern, the slider or the resistor pattern There is a problem that it is difficult to extend the service life due to wear and the like. In addition, since the slider is slid on the resistor pattern, high positional accuracy is required between the flexible substrate having these and the rotary knob, especially when the slider or resistor pattern is worn. There is a problem that it becomes impossible to properly accept the rotation operation.

  The present invention has been made in view of such problems, and an object of the present invention is to provide a rotation operation type input device that can appropriately receive a rotation operation while extending the life of the device.

  The rotary operation type input device of the present invention includes an operating body that is rotatably held by a holding body, a rotation detecting unit that detects rotation of the operating body, and a press detecting unit that detects a pressing operation on the operating body. The rotation detecting means includes a magnet arranged in such a manner that N poles and S poles are alternately magnetized and interlocked with the operation body, and a GMR arranged opposite to the magnet with a predetermined interval. And a GMR sensor that detects a magnetic field generated by the magnet that moves in conjunction with rotation of the operating body.

  According to the rotary operation type input device, since the rotation of the operating body is detected by detecting the magnetic field generated by the magnet interlocked with the operating body by the GMR sensor, the operation body can be operated without contacting the magnet or the operating body with the member. Since the rotation can be detected, the life of the apparatus can be extended. In addition, since the rotation of the operating body can be detected in a non-contact manner, it is possible to prevent wear of the operating body and the like, and it is possible to appropriately receive a rotating operation on the operating body.

  In particular, in the rotational operation type input device, it is preferable that the magnet is disposed on the operation body so as to be integrally rotatable. In this case, since the magnet can be integrally rotated by rotating the operating body, it is possible to reliably detect the rotation according to the rotating operation on the operating body.

  In the rotary operation type input device, it is preferable that the operating body is pivotally supported by the holding body and presses the press detecting means with a part of the holding body in response to a pressing operation on the operating body. In this case, since the pressing detection means is pressed by a part of the holding body in response to a pressing operation on the operating body, the pressing detection means can be reliably operated without affecting the rotation of the operating body. Is possible.

  In the rotational operation input device, it is preferable that the magnet is disposed in an annular recess provided on an outer periphery of a rotation shaft included in the operation body. In this case, since the magnet is disposed in the annular recess provided in the operation body, it is not necessary to separately provide a space for disposing the magnet, so that the apparatus main body can be thinned. Become.

  In the rotary operation type input device, it is preferable that the GMR sensor is disposed on an outer periphery of the magnet. In this case, since the GMR sensor is disposed on the outer periphery of the magnet, it is not necessary to separately provide a space for the GMR sensor in the thickness direction of the apparatus, so that the apparatus main body can be thinned. .

  The rotary operation input device preferably includes a guide member that guides the holding body in a slidable manner. By guiding the holding body in such a manner that the holding body is slidable by the guide member in this way, it is possible to reliably guide the holding body to a desired position when pressing the pressing detection means with a part of the holding body.

  In the rotary operation type input device, the operation body and the holding body for holding the magnet are movably disposed on one surface of the substrate, and the GMR sensor and the pressure detection are provided in the vicinity of the holding body on the same surface of the substrate. It is preferable to implement the means. In this case, since the holding body, the GMR sensor, and the pressure detecting means can be arranged on one side of the substrate so as to overlap each other, the apparatus main body can be thinned.

  In the rotational operation type input device, it is preferable that the GMR sensor and the pressure detecting means are covered with a rubber sheet. In this case, since the rubber sheet covers the GMR sensor and the pressure detecting means, it is possible to prevent water and foreign matter from entering the GMR sensor and the like, and to prevent the detection accuracy from deteriorating.

  According to the present invention, since the rotation of the operating body is detected by detecting the magnetic field generated by the magnet interlocked with the operating body with the GMR sensor, the rotation of the operating body can be detected without bringing the member into contact with the magnet or the operating body. Therefore, it is possible to extend the life of the apparatus. In addition, since the rotation of the operating body can be detected in a non-contact manner, it is possible to prevent wear of the operating body and the like, and it is possible to appropriately receive a rotating operation on the operating body.

  Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings. The rotational operation type input device according to the present embodiment is used for, for example, a rotational operation or a pressing device in a mobile phone device or a portable music player. The use of the rotary operation type input device according to the present embodiment is not limited to these, and can be changed as appropriate.

  FIG. 1 is a perspective view showing an appearance of a rotary operation input device 1 according to an embodiment of the present invention. 2 and 3 are exploded perspective views of the rotary operation type input device 1 according to the present embodiment. 2 shows the rotary operation type input device 1 seen from the left side shown in FIG. 1, and FIG. 3 shows the rotary operation type input device 1 seen from the right side shown in FIG. Yes. In the following, for convenience of explanation, the front side of the paper shown in FIG. 1 is referred to as “front side”, and the back side of the paper shown in FIG. 1 is referred to as “rear side”.

  As shown in FIGS. 1 to 3, the rotary operation type input device 1 according to the present embodiment includes a first case 2 and a second case 3 that constitute an external housing of the device, and these are combined to form an internal structure. A space is formed. For example, the first case 2 and the second case 3 are formed by molding an insulating resin material. In addition, the first case 2 and the second case 3 can share the external housing of the device to which the rotary operation type input device 1 is applied.

  An opening 21 is formed near the rear end of the upper end surface of the first case 2. The rotary operation input device 1 is configured such that a part of an operation body 81 described later is exposed through the opening 21. The operator can input an instruction to a device to which the rotary operation type input device 1 is applied by performing a rotation operation or a pressing operation on the operation body 81 exposed from the opening 21.

  As shown in FIG. 3, a rib 23 is provided on the inner side surface of the first case 2 to form a space 22 (hereinafter referred to as “substrate storage space”) 22 for storing a substrate 6 to be described later in the rear side portion. Yes. The substrate storage space 22 is provided with a pair of protrusions 24 projecting toward the second case 3 in the vicinity of the center and having a predetermined interval in the vertical direction for positioning the stored substrate 6. In the vicinity, a pair of receiving portions 25 having a predetermined interval in the vertical direction are provided to receive the tips of a pair of fixing pins 32 (described later) of the second case 3 that fixes the substrate 6 and a mounting member 84 (described later).

  As shown in FIG. 2, ribs 31 are provided on the inner surface of the second case 3 at positions corresponding to the ribs 23 of the first case 2. By combining these ribs 23 and the ribs 31, a substrate storage space 22 is formed between the inner wall surface of the first case 2. Near the rear upper end of the inner surface of the second case 3, it protrudes toward the first case 2 and has a predetermined interval in the vertical direction for fixing the substrate 6 and the mounting member 84 stored in the substrate storage space 22. A pair of fixing pins 32 are provided. A protruding portion 32 a that is accommodated in the accommodating portion 25 of the first case 2 is provided at the tip of the fixing pin 32. In addition, a protrusion 33 is provided in the vicinity of the lower end on the rear side of the inner side surface of the second case 3 so as to project the first case 2 and position the substrate 6 stored in the substrate storage space 22.

  In the substrate storage space 22 described above, a GMR (Giant Magneto Resistance) sensor 4 constituting a part of the rotation detecting means of the rotary operation type input device 1 and a push button switch (hereinafter simply referred to as “switch”) constituting the pressure detecting means. 5) on which a circuit board (hereinafter simply referred to as “substrate”) 6 is mounted, a rubber sheet 7 disposed on the board 6 so as to cover a mounting surface of the GMR sensor 4 and the like, The operating body unit 8 that receives operations (rotating operation and pressing operation) is housed.

  As shown in FIG. 2, the substrate 6 has a long shape extending in the vertical direction of the rotary operation type input device 1, and the GMR sensor 4 and the surface on the first case 2 side in the vicinity of the upper end portion of the substrate 6. A switch 5 is mounted. In addition, a pair of holes 61 through which the fixing pins 32 of the second case 3 are inserted are formed in the vicinity of the rear upper end portion of the substrate 6. On the other hand, a hole 62 through which the protrusion 33 of the second case 3 is inserted is formed near the lower end on the rear side of the substrate 6.

  Similar to the substrate 6, the rubber sheet 7 has a long shape extending in the vertical direction of the rotary operation type input device 1, and is disposed on the first case 2 side of the substrate 6. In the vicinity of the upper end portion of the rubber sheet 7, accommodating portions 71 and 72 for accommodating the GMR sensor 4 and the switch 5 are provided. These accommodating portions 71 and 72 are formed to bulge out so as to protrude toward the first case 2 and constitute a generally rectangular recess. Further, a pair of holes 73 through which the fixing pins 32 of the second case 3 are inserted are formed in the vicinity of the rear upper end portion of the rubber sheet 7.

  The operating body unit 8 includes an operating body 81, a magnet 82, a holding body 83, and an attachment member 84, which will be described later, and is disposed on the first case 2 side of the rubber sheet 7. The operating body unit 8 is disposed on the rear side of the GMR sensor 4 mounted on the substrate 6 and on the upper side of the switch 5. In the operating body unit 8, the convex portion 32 a of the fixing pin 32 is inserted into a pair of holes 842 a formed in the mounting member 84, and the convex portion 32 a is accommodated in the accommodating portion 25 of the first case 2. It is fixed to the first case 2. In this fixed state, the operating body 81 is exposed from the opening 21.

  As described above, in the rotary operation type input device 1 according to the present embodiment, the operating body unit 8 is disposed opposite to the substrate 6 via the rubber sheet 7, while being close to the operating body unit 8 on the same surface of the substrate 6. Since the GMR sensor 4 and the switch 5 are mounted, the operating body unit 8 and the GMR sensor 4 and the switch 5 can be disposed on one side of the substrate 6 so that the apparatus main body is thinned. It is possible. The switch 5 and the GMR sensor 4 are accommodated in the accommodating portions 71 and 72 of the rubber sheet 7 to cover them. Thereby, it is possible to prevent water and foreign matter from entering the GMR sensor 4 and the switch 5, and it is possible to prevent the detection accuracy from deteriorating. The detection operation of the GMR sensor 4 and the switch 5 will be described later.

  4, 5, and 6 are a perspective view, a front view, and a side view showing the configuration of the operation unit 8 included in the rotary operation type input device 1 according to the present embodiment. 4 to 6 show the operating body unit 8 in a state of being fixed in the substrate storage unit 22. 4 to 6 show the GMR sensor 4 and the switch 5 mounted on the substrate 6 for convenience of explanation. Further, FIG. 6 shows the operating body unit 8 viewed from the left side shown in FIG.

  As shown in FIGS. 4 to 6, the operating body unit 8 includes an operating body 81 that receives an operation (rotating operation and pressing operation) from an operator who operates the rotary operation type input device 1, and is linked to the operating body 81. The magnet 82, the holding body 83 that rotatably holds the operating body 81, and the holding body 83 that holds the operating body 81 are slidably guided in the vertical direction of the rotary operation type input device 1. And an attachment member 84 attached to the first case 2.

  The operating body 81 has a generally disk shape, and is disposed inside the holding body 83 with a part thereof protruding upward. Further, the operating body 81 is pivotally supported by the holding body 83 with a shaft portion 811 provided so as to protrude from the center portion toward the outside (the front side and the back side of the paper surface shown in FIG. 5), and is rotated by the operator. It is configured to be rotatable according to the operation.

  The magnet 82 constitutes a part of the rotation detection means of the rotary operation type input device 1, is incorporated as a part of the operation body 81, and is configured to be rotatable together with the operation body 81. By arranging the magnet 82 in the operating body 81 so as to be integrally rotatable in this manner, the magnet 82 can be rotated integrally by rotating the operating body 81, and as will be described in detail later, In addition, the GMR sensor 4 can detect the rotation according to the rotation operation with respect to the operating body 81.

  The holding body 83 includes a pair of holding plate portions 831 and 832 for holding the operating body 81 in a rotatable manner (the holding plate portion 832 is not shown in FIGS. 4 and 5, see FIGS. 6 and 7). The holding plate portion 831 is provided with a holding piece 831b in which a hole 831a that pivotally supports the shaft portion 811 of the operation body 81 is formed. Further, around the holding piece 831b, there is provided a click plate portion 831c that generates a click feeling when the operation body 81 is rotated by being engaged with or disengaged from a later-described uneven portion 815 of the operation body 81. A protruding portion 831d that protrudes toward the operating body 81 is provided at the upper end of the click plate portion 831c.

  4 and 5 on the side of the operating body 81 in the holding body 83 is snap-engaged with a guide portion 841 of a mounting member 84, which will be described later, to prevent the holding body 83 from coming out upward. A pair of engagement pieces 833 are provided in the width direction. Further, a pair of restricting pieces 834 for restricting the lowering of the holding body 83 beyond a certain position is provided on the opposite side (upper side) across the engaging pieces 833 and the guide portion 841. Further, a pressing piece 835 that presses the pressed portion 51 of the switch 5 in response to a pressing operation on the operating body 81 from the operator is provided below the operating body 81 in the holding body 83. In this way, by pressing the switch 5 with a part of the holding body 83 (the pressing piece 835) that rotatably holds the operating body 81, the switch 5 is reliably operated without affecting the rotation of the operating body 81. It is possible.

  The switch 5 includes a pressed portion 51 that is pressed by the pressing piece 835 and a main body portion 52 that externally outputs an ON signal according to the pressed state of the pressed portion 51, and holds the pressed portion 51. The body 83 is disposed at a position facing the pressing piece 835. The pressed portion 51 is given a force by an urging spring or the like to return the holding body 83 to an initial state where the operating body 81 is not pressed, and the pressing operation from the operator is released. The holding body 83 (operation body 81) is configured to return to the initial position.

  The attachment member 84 constitutes a guide member of the rotary operation type input device 1 and includes a pair of guide portions 841 that guide the holding body 83 so as to be slidable in the vertical direction of the rotary operation type input device 1. . Further, the attachment member 84 is provided with an attachment piece 842 extending to the right side shown in FIGS. 4 and 5. The mounting piece 842 is formed with a pair of holes 842a through which the convex portions 32a of the fixing pins 32 of the second case 3 are inserted. Of these holes 842a, the hole 842a disposed on the lower side is a long hole for fine adjustment when the attachment member 84 is attached.

  The GMR sensor 4 is arranged on the left side of the guide portion 841 arranged on the left side shown in FIGS. 4 and 5 and at a position near the second case 3 (see FIG. 6). In this case, the GMR sensor 4 is disposed on the outer periphery of the magnet 82 and is disposed to face the magnet 82 with a predetermined interval. By disposing the GMR sensor 4 on the outer periphery of the magnet 82 in this way, it is not necessary to separately provide a space for the GMR sensor 4 in the thickness direction of the rotary operation type input device 1, so that the apparatus main body is thinned. It is possible.

  In the rotary operation type input device 1 according to the present embodiment, the GMR sensor 4 and the magnet 82 incorporated in the operation body 81 constitute a rotation detection means. In this case, as a basic configuration, the GMR sensor 4 is formed by laminating an antiferromagnetic layer, a pinned layer, an intermediate layer, and a free layer on the substrate 6, and a plurality of GMR elements using a giant magnetoresistance effect. And a control circuit for amplifying the output signals from these GMR elements and calculating the rotational position of the magnet 82 (operation body 81) based on the amplified output signals.

  In the GMR sensor 4, a magnetic field generated by the magnet 82 incorporated in the operating body 81 is applied to the GMR element to cause a change in the electric resistance value depending on the direction of the magnetic field, and the magnet 82 ( The rotation of the operating body 81) is detected. For example, in the GMR sensor 4, a bridge circuit is configured by four GMR elements, and an output signal corresponding to a change in electrical resistance value in a pair of GMR elements and a change in electrical resistance value in another pair of GMR elements. Based on the difference from the output signal, the control circuit calculates the rotational position of the magnet 82 (operation body 81).

In order for the GMR element included in the GMR sensor 4 to exhibit a giant magnetoresistance effect, for example, the antiferromagnetic layer is an α-Fe ₂ O ₃ layer, the pinned layer is a NiFe layer, the intermediate layer is a Cu layer, and free The layer is preferably formed of a NiFe layer, but is not limited thereto, and any layer may be used as long as it exhibits a magnetoresistive effect. Further, the GMR element included in the GMR sensor 4 is not limited to the one having the above laminated structure as long as it exhibits a magnetoresistive effect.

  Here, the detailed structure of the operation body 81, the magnet 82, the holding body 83, and the attachment member 84 which comprise such an operation body unit 8, and the operation | work which assembles these are demonstrated. 7, 8, and 9 are a perspective view, a front view, and a side view showing the configuration of the operation unit 8 included in the rotary operation type input device 1 according to the present embodiment. 7 to 9 show the operating body unit 8 in a state before assembling. Further, FIG. 9 shows the operating body unit 8 viewed from the right side shown in FIG.

  The operating body 81 is formed, for example, by molding an insulating resin material, and generally has a disk shape. A concavo-convex portion 812 for improving the operability for the operator is formed on the outer periphery of the operation body 81. A circular recess 813 for fixing the magnet 82 is provided at the center of one surface of the operation body 81 (the front surface shown in FIGS. 7 and 8). A circular protrusion 814 is provided at the center of the recess 813. The shaft portion 811 is provided so as to protrude from the surface of the protruding portion 814, and is provided so as to protrude from the back surface of the operating body 81 (see FIG. 9). Further, an uneven portion 815 is provided around the protruding portion 814 so as to protrude from the outer peripheral surface thereof. These concavo-convex portions 815 are portions where the protruding portion 831d of the click plate portion 831c of the holding body 83 is engaged and disengaged to generate a click feeling.

  The convex portions 815 a and the concave portions 815 b constituting the concave and convex portions 815 are arranged at equal intervals, and the radial end surface of the operation body 81 extends to a position near the center of the concave portion 813. The end surface in the radial direction of the convex portion 815 a is used for positioning the magnet 82 accommodated in the concave portion 813. In this case, eight convex portions 815a are provided in the concave portion 813, and their end surfaces in the radial direction generally form an octagon, and support an inner wall of a magnet 82 described later. The concave portion 815b engages with the protruding portion 831d of the click plate portion 831c of the holding body 83 and plays a role of arranging the magnet 82 fixed to the concave portion 813 in a suitable position in relation to the GMR sensor 4. It has become.

  The magnet 82 has an annular shape, and N and S poles are alternately magnetized in the circumferential direction (so-called radial magnetization). The magnet 82 has substantially the same outer dimensions as the concave portion 813 of the operation body 81. Further, the magnet 82 is formed with an octagonal opening 821, and this opening 821 has substantially the same dimensions as an octagon formed by the end face of the convex portion 815 a provided in the concave portion 813. ing. That is, the magnet 82 is disposed and fixed in an annular portion constituted by the inner peripheral surface of the concave portion 813 and the end surface of the convex portion 815a. By disposing the magnet 82 in the concave portion 813 of the operating body 81 in this way, it is not necessary to provide a separate space for disposing the magnet 82, so that the apparatus main body can be made thinner. Note that the fixing of the magnet 82 in the recess 813 is not particularly limited. For example, it may be press-fitted into an annular portion constituted by the inner peripheral surface of the concave portion 813 and the end surface of the convex portion 815a, or may be fixed by an adhesive or the like.

  The holding body 83 is formed by punching and bending a nonmagnetic metal plate having elasticity as one member, and as shown in FIGS. 7 to 9, a pair of connecting portions 836 in the width direction at the lower end portion. Thus, the pair of holding plate portions 831 and 832 are provided in a connected state. In this case, one holding plate portion 831 is provided in a state where the upper end portion thereof is slightly opened, and has a slight angle with respect to the other holding plate portion 832 provided in a direction orthogonal to the connecting portion 836. Are arranged opposite each other.

  In one holding plate portion 831, the holding piece 831 b is formed by forming the click plate portion 831 c by bending. Note that the click plate portion 831 c is bent inward from the holding body portion 831. The engaging piece 833 and the restricting piece 834 are provided on a side surface portion 837 formed by bending the side edge portion of the holding plate portion 831 toward the holding plate portion 832 side. The side surface portion 837 is provided with a claw portion 837a that snap-engages with an opening portion 838a formed in a side surface portion 838 of a holding plate portion 832 described later.

  Near the center of the other holding plate portion 832, a hole 832 a that pivotally supports the shaft portion 811 of the operating body 81 is formed. For example, the hole 832a and the hole 831a in the holding piece 831b are formed by burring the holding plate portions 831 and 832. The pressing piece 835 is formed by being bent from the lower end portion of the holding plate portion 832 toward the holding plate portion 831. An opening 838 a that accommodates a claw portion 837 a provided on the side surface portion 837 of the holding plate portion 831 is formed on the side surface portion 838 that is formed by bending the side edge portion of the holding plate portion 832 toward the holding plate portion 831 side. Is formed.

  The attachment member 84 is formed by punching and bending a nonmagnetic metal plate, and is generally provided by folding the metal plate. The guide portion 841 is provided at the side end portion of the metal plate arranged on the near side shown in FIGS. 7 and 8, and the mounting piece 842 is a metal plate arranged on the back side shown in FIGS. Is provided at the end of the side (see FIG. 9). A groove portion 843 that guides the shaft portion 811 that moves in accordance with the pressing operation on the operating body 81 is formed at the center of the upper end portion of the metal plate disposed on the front side.

  When assembling the operating body unit 8 having such a configuration, first, the magnet 82 is fixed to the recess 813 of the operating body 81. In this case, the magnet 82 is positioned by the radial end surface of the convex portion 815 a provided in the concave portion 813 and the inner wall of the opening 821. By fixing the concave portion 813 in this way, the magnet 82 can rotate integrally with the operation body 81. Further, by positioning with the end face of the convex portion 815a and the inner wall of the opening 821, the positional relationship suitable for the detection operation in the GMR sensor 4 disposed outside the operating body unit 8 is secured. .

  Then, the operating body 81 to which the magnet 82 is fixed is rotatably held by the holding body 83. When the operating body 81 is rotatably held by the holding body 83, the holding plate portion 831 is held against the elastic force of the metal plate with the shaft portion 811 inserted through the hole 832a of the holding plate portion 832. Pressing toward the plate portion 832 side, the claw portion 837 a provided on the side surface portion 837 of the holding plate portion 831 is snap-engaged with the opening portion 838 a formed on the side surface portion 838 of the holding plate portion 832. In this case, the holding plate portion 831 slightly returns in the opening direction according to the elastic force of the metal plate, but is regulated by the contact between the claw portion 837a and the opening portion 838a and is fixed at that position. The

  When snap-engaged in this way, the shaft portion 811 of the operating body 81 is inserted into the hole 831a of the holding plate portion 831 as shown in FIG. 4, and the hole 831a and the holding plate portion 832 of the holding plate portion 831 are inserted. This is pivotally supported by the hole 832a. In addition, the click plate portion 831 c is disposed at a position where the protruding portion 831 d can come into contact with the uneven portion 815 of the operating body 81. Further, the side surface portion 837 of the holding plate portion 831 and the side surface portion 838 of the holding plate portion 832 are overlapped, and the engagement piece 833 protrudes from the lower side portion of the side surface portion 838, and the upper side of the side surface portion 838. The restricting piece 834 protrudes from the portion. In this way, the operating body 81 can be held by the holding body 83 so that it can be easily rotated by simply pressing the holding plate 831 toward the holding plate 832 so that the shaft 811 is inserted into the holes 831a and 832a. It has become.

  In this embodiment, the operating body is rotatably supported on the holding body. In this embodiment, a shaft portion is provided in the center of both surfaces of the operating body, and a hole through which the shaft portion is inserted is provided in the pair of holding portions. However, a shaft portion that protrudes toward the operating body may be provided in the center of the pair of holding portions, and a hole portion that engages with the shaft portion may be provided on both surfaces of the operating body to support the shaft. Further, a shaft portion is provided in one holding portion of the pair of holding portions, and a hole portion to which the shaft portion is engaged is provided on one surface of the operating body facing the one holding portion, so that the other of the operating body is provided. A shaft portion that protrudes toward the other holding portion may be provided on this surface, and a hole portion with which the shaft portion is engaged may be provided in the other holding portion to be pivotally supported.

  Finally, the holding body 83 that holds the operating body 81 rotatably is fixed to the mounting member 84 in this manner. When the holding body 83 is fixed to the mounting member 84, the holding body 83 is pushed downward with the engaging piece 833 protruding from the side surface portion 838 inside the guide portion 841 of the mounting member 84. The combined piece 833 is moved to a position below the guide portion 841. When the engagement piece 833 moves to a position below the guide portion 841, the engagement piece 833 returns to the outside of the guide portion 841 by its own elastic force. That is, the engagement piece 833 is snap-engaged with the guide portion 841 (attachment member 84), and the situation in which the holding body 83 is pulled out is prevented. Thus, the holding body 83 holding the operating body 81 can be easily attached to the mounting member 84 simply by pressing the holding body 83 so that the engaging piece 833 moves to a position below the guide portion 841. It has become.

  The operation body unit 8 assembled in this way is fixed to the inner wall surface of the first case 2. In the state fixed to the first case 2, as shown in FIG. 4, on the lower side of the operating body unit 8, the switch 5 is disposed at a position facing the pressing piece 835 of the holding body 83. On the left side of FIG. 8, the GMR sensor 4 is disposed at a position facing the magnet 82 with the operating body 81, the guide portion 841, and the like interposed therebetween. In this case, the holding body 83 is lifted by the return force of the switch 5 toward the upper side of the pressed portion 51.

  In the operating body unit 8 in such a state, when a rotating operation is performed on the operating body 81, the GMR sensor 4 detects the direction of the magnetic field by the magnet 82 rotating together with the operating body 81. The rotational position of the operating body 81 can be detected. When the operation body 81 is rotated, the protruding portion 831d provided on the click plate portion 831c of the holding plate portion 831 can be disengaged from the concavo-convex portion 815 of the operation body 81 to provide a click feeling to the operator. Yes.

  On the other hand, when a pressing operation is performed on the operating body 81, since the operating body 81 is held by the holding body 83, the holding body 83 resists the restoring force at the pressed portion 51 of the switch 5. Falls and the pressed part 51 is pushed down. Thereby, a pressing operation can be detected. In this case, since the holding body 83 is guided by the guide portion 841 of the mounting member 84 so as to be slidable, it can be reliably guided to a desired position, and the switch 5 can be appropriately operated. It has become.

  As described above, according to the rotational operation type input device 1 according to the present embodiment, the GMR sensor 4 detects the rotation of the operating body 81 by detecting the magnetic field generated by the magnet 82 interlocking with the operating body 81, and thus the magnet Since the rotation of the operation body 81 can be detected without bringing a member into contact with the operation body 82 or the operation body 81, it is possible to extend the life of the apparatus. In addition, since the rotation of the operation body 81 can be detected in a non-contact manner, the operation body 81 and the like can be prevented from being worn, and a rotation operation on the operation body 81 can be appropriately received.

  In the rotary operation type input device 1 according to the present embodiment, the GMR sensor 4 detects the rotation of the operating body 81 by detecting the direction of the magnetic field by the magnet 82 interlocked with the operating body 81. It is possible to detect the rotation of the operation body 81 with higher accuracy than in the case of detecting the rotation of the operation body 81 based on the strength.

  Furthermore, since the rotation operation type input device 1 according to the present embodiment includes the GMR sensor 4 and detects the rotation of the operation body 81 in a non-contact manner, for example, the rotation is performed in contact with the operation body 81. As compared with the case of detecting the signal, it is possible to reduce the restriction on the signal output wiring, and thus it is possible to ensure the degree of freedom of design in the apparatus.

  In the above embodiment, the snap engagement is used as the engagement between the one holding portion and the other holding portion. However, for example, a pair of members in the width direction projecting toward the other holding portion provided in one holding portion. The protrusion and the tip of the pair of protrusions may be engaged with a recess or hole provided in the other holding part, and is not limited to snap engagement. Thus, the present invention is not limited to the above-described embodiment, and can be implemented with various modifications. In the above embodiment, the size and shape shown in the accompanying drawings, the arrangement and number of contacts, etc. are not limited to this, and can be appropriately changed within the scope of the effects of the present invention. . In addition, various modifications can be made without departing from the scope of the object of the present invention.

  For example, in the above embodiment, the mounting member 84 is fixed to the first case 2, and the holding body 83 holding the operating body 81 rotatably is set to slide in the vertical direction of the rotary operation type input device 1. Although the case where the switch 5 is operated by lowering 83 is described, the mode of operating the switch 5 is not limited to this and can be appropriately changed. For example, the attachment member 84 may be attached to the first case 2 so as to be rotatable within a certain range, and the switch 5 may be operated using the rotation.

  FIG. 10 is a front view of a modified example of the operating body unit 8 included in the rotary operation type input device 1 according to the present embodiment. In addition, in the operating body unit 8 shown in FIG. 10, about the structure same as FIG. 5, the same code | symbol is attached | subjected and the description is abbreviate | omitted. In the operating body unit 8, as shown in FIG. 10, the attachment member 84 is attached to the first case 2 through a hole 842a disposed on the lower side of the attachment piece 84, and the left side portion shown in FIG. Is configured to be rotatable within a certain range in the direction of arrow AB. Further, the switch 5 is disposed below the lower left side end portion of the holding body 83 shown in FIG. 10, and a part of the holding body 83 comes into contact with the pressed portion 51 as the mounting member 84 rotates. It is configured as follows. According to the operating body unit 8, the attachment member 84 rotates in response to a pressing operation on the operating body 81, and the switch 5 can be operated by a part of the holding body 83, for example, one connecting portion 836. . Even in the case of such deformation, the detection of the rotation operation on the operating body 81 is performed in the same manner as in the above embodiment, so that the same effect as in the above embodiment can be obtained. .

  In the above-described embodiment, the case where the operating body 81 is rotatably held by the holding body 83 is described. However, the mode in which the operating body 81 is held by the holding body 83 is limited to this. It is not a thing and it can change suitably. For example, the operation body 81 may be held by the holding body 83 so that the operation body 81 receives a rotation operation only within a certain range.

  FIG. 11 is a front view of a modified example of the operating body unit 8 included in the rotary operation type input device 1 according to the present embodiment. In addition, in the operating body unit 8 shown in FIG. 11, about the structure same as FIG. 5, the same code | symbol is attached | subjected and the description is abbreviate | omitted. In the operating body unit 8, as shown in FIG. 11, an operating knob 816 is provided on a part of the outer peripheral surface of the operating body 81, and a part of the surface opposed to the holding plate portion 831 is arranged in the width direction. On the other hand, a pair of locking portions 817 are provided so as to protrude. Further, a torsion coil spring as an urging spring 85 for returning the operating body 81 to the initial position between the operating body 81 and the holding plate portion 831 so that both ends thereof are locked by the locking portions 817. Is arranged. According to this operating body unit 8, when the operating body 81 (operation knob 816) is rotated, the operating body 81 rotates within a certain range against the biasing force of the biasing spring 85. When the rotation operation is released, the initial position is returned according to the urging force of the urging spring 85. The pressing operation on the operating body 81 is performed in the same manner as in the above embodiment. Even in the case of such deformation, the detection of the rotation operation on the operating body 81 is performed in the same manner as in the above-described embodiment, so that the same effect as in the above-described embodiment can be obtained.

  Furthermore, in the above-described embodiment, a case has been described in which the magnet 82 is attached to the recess 813 provided in the operating body 81 and the magnet 82 is rotated integrally according to the rotation of the operating body 81. The mode in which the magnet 82 is interlocked according to the rotation is not limited to this, and can be changed as appropriate. For example, the magnet 82 may be attached to the holding body 83 so as to be slidable as a rod, and may be slid as the operating body 81 rotates.

  FIG. 12 is a front view of a modified example of the operating body unit 8 included in the rotary operation type input device 1 according to the present embodiment. In addition, in the operating body unit 8 shown in FIG. 12, the same code | symbol is attached | subjected about the structure same as FIG. 5, and the description is abbreviate | omitted. In this operating body unit 8, as shown in FIG. 12, a magnet 82 that has a long shape and forms a rack that meshes with an interlocking gear 86 to be described later is shown in the vicinity of the lower end portion of the holding body 83. It is slidable in the left-right direction. Further, in this operating body unit 81, a gear 87 is configured by a part of the outer peripheral surface of the operating body 81 (a certain range on the lower side), and an interlocking gear 86 disposed between the operating body 81 and the magnet 82; It is comprised so that it may mesh. Further, the switch 5 is disposed below the lower left side end of the holding body 83 shown in FIG. 12 so that a part of the holding body 83 comes into contact with the pressed portion 51 in accordance with the pressing operation on the operating body 81. It is configured. Further, the GMR sensor 4 is disposed on the lower side of the holding body 83 so as to face the magnet 82 with a certain distance. According to the operating body unit 8, when a rotating operation is performed on the operating body 81, the rotation of the operating body 81 is transmitted to the magnet 82 via the interlocking gear 86, and the magnet 82 slides in the left-right direction shown in FIG. Is configured to do. In the GMR sensor 4, the rotational position of the operating body 81 is detected by detecting a change in the magnetic field accompanying the sliding movement of the magnet 82. When a pressing operation is performed on the operating body 81, the holding body 83 moves downward along with this, and a part thereof, for example, one connecting portion 836 presses the pressed portion 51 of the switch 5. It is supposed to be. Even in such a case, since the rotation operation on the operating body 81 is detected in a non-contact manner as in the above embodiment, the same effects as in the above embodiment can be obtained. is there.

It is a perspective view which shows the external appearance of the rotary operation type input device which concerns on one embodiment of this invention. It is a disassembled perspective view of the rotary operation type input device which concerns on the said embodiment. It is a disassembled perspective view of the rotary operation type input device which concerns on the said embodiment. It is a perspective view which shows the structure of the operation body unit which the rotary operation type input device which concerns on the said embodiment has. It is a front view which shows the structure of the operation body unit which the rotary operation type input device which concerns on the said embodiment has. It is a side view which shows the structure of the operation body unit which the rotary operation type input device which concerns on the said embodiment has. It is a perspective view which shows the structure of the operation body unit which the rotary operation type input device which concerns on the said embodiment has. It is a front view which shows the structure of the operation body unit which the rotary operation type input device which concerns on the said embodiment has. It is a side view which shows the structure of the operation body unit which the rotary operation type input device which concerns on the said embodiment has. It is a front view of the modification of the operation body unit which the rotary operation type input device which concerns on the said embodiment has. It is a front view of the modification of the operation body unit which the rotary operation type input device which concerns on the said embodiment has. It is a front view of the modification of the operation body unit which the rotary operation type input device which concerns on the said embodiment has.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Rotation operation type input device 2 1st case 21 Opening part 22 Substrate storage space 23 Rib 24 Projection part 25 Housing part 3 2nd case 31 Rib 32 Fixing pin 33 Protrusion part 4 GMR sensor 5 Pushbutton switch (switch)
51 Pressed Part 52 Main Body 6 Circuit Board (Board)
61, 62 hole 7 rubber sheet 71, 72 accommodation part 73 hole 8 operation body unit 81 operation body 811 shaft part 812 uneven part 813 recessed part 814 protrusion part 815 uneven part 815a convex part 815b recessed part 816 operation knob 817 locking part 82 magnet 821 Opening 83 Holding body 831, 832 Holding plate 831a, 832a Hole 831b Holding piece 831c Click plate 831d Protruding part 833 Engaging piece 834 Restricting piece 835 Pressing piece 836 Connecting part 837, 838 Side face part 837a Claw part 838a Opening part 84 Mounting member 841 Guide portion 842 Mounting piece 842a Hole 843 Groove portion 85 Biasing spring 86 Interlocking gear

Claims (8)

An operating body rotatably held by the holding body, a rotation detecting means for detecting the rotation of the operating body, and a pressure detecting means for detecting a pressing operation on the operating body,
The rotation detecting means includes a magnet arranged so that N poles and S poles are alternately magnetized and interlocked with the operation body, and a GMR sensor arranged opposite to the magnet with a predetermined interval. A rotation operation type input device, wherein the GMR sensor detects a magnetic field generated by the magnet that moves in conjunction with rotation of the operation body.   The rotary operation type input device according to claim 1, wherein the magnet is disposed on the operation body so as to be integrally rotatable.   The said operation body is pivotally supported by the said holding body, and presses the said press detection means with a part of said holding body according to the press operation with respect to the said operation body, The Claim 1 or Claim 2 characterized by the above-mentioned. Rotation operation type input device.   The rotary operation type input device according to claim 3, wherein the magnet is disposed in an annular recess provided on an outer periphery of a rotary shaft of the operating body.   The rotary operation type input device according to claim 4, wherein the GMR sensor is disposed on an outer periphery of the magnet.   The rotary operation type input device according to claim 3, further comprising a guide member that guides the holding body so as to be slidable.   The operation body and the holding body for holding the magnet are movably disposed on one surface of the substrate, and the GMR sensor and the pressure detection means are mounted in the vicinity of the holding body on the same surface of the substrate. The rotary operation type input device according to any one of claims 1 to 6.   8. The rotary operation type input device according to claim 7, wherein the GMR sensor and the pressure detecting means are covered with a rubber sheet.

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