JP2014239004A - Rotary electric component - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a rotary electric component which is less likely to affect rotation of an internal rotor even when a rotation operation shaft is pressed and uses a small number of components.SOLUTION: An operation part 11 of a metal rotation operation shaft 10 is disposed at the front side of a bearing part 25 and is formed into a shape larger than an inner diameter of the bearing part 25. A bearing member 20 includes: a plate-like part 21 which is formed by a metal plate and faces a case 50; a cylindrical part 22 which protrudes to the front side; and a holding part 23 protruding to the rear side and used for holding the case 50. The cylindrical part 22 is provided with: an annular step part 22b; a body part 22a positioned between the annular step part 22b and the plate-like part 21; and a small diameter part 22c which is disposed at the front side of the annular step part 22b and has a diameter smaller than the body part 22a. The small diameter part 22c forms the bearing part 25, and a tip 22d of the small diameter part 22c faces the operation part 11 positioned at the front side.

Description

  The present invention relates to a rotary electrical component, and more particularly to a rotary electrical component having a metal rotary shaft member.

  For example, Patent Document 1 discloses a rotary electric component that rotates an operation shaft. 10 is a cross-sectional view of a main part of the rotary electrical component 100 described in Patent Document 1, and FIG. 11 is an exploded perspective view of the rotary electrical component 100. In the rotary electric component 100, a cylindrical bearing portion 104 is formed between a mounting plate 101 formed by bending a metal plate and an insulating case 112 in which a slider piece 112a is integrated. A support member 102, an operation shaft 105, an operation member 108, a driving body 109, a rubber rubber 110, and the like are disposed.

  The rotary electrical component 100 is an electrical component that rotates the operation member 108 by rotating the operation shaft 105, and thus, the conductive pattern 108a is brought into contact with and separated from the slider piece 112a to constitute a pulse switch for switching the contact. doing. When the operation shaft 105 is rotated, the operation member 108 rotates with the rotation of the operation shaft 105, and the slider piece 112 a integrated with the insulating case 112 by insert molding or the like and the conductive pattern provided on the operation member 108. 108a is relatively slid, the pulse switch is operated, and the rotational motion is detected.

  The operation shaft 105 used in the rotary electric component 100 is made of metal. Operation shafts used for such rotary electric parts are roughly classified into resin and metal. Since the resin operation shaft may be damaged by an impact, for example, an electronic device mounted in an automobile or the like uses a rotary electric component using a metal operation shaft from the viewpoint of mechanical strength.

JP 2001-257106 A

  However, in the metal operation shaft 105 and the metal bearing portion 104, the operation shaft 105 is undesirably pressed and does not hinder the rotation of the internal operation member 108 even if it strikes the bearing portion 104 vigorously. Must be taken into account. For this reason, the bearing part 104 was comprised with the zinc diecast etc. which are hard to deform | transform. Thus, since the bearing part 104 was comprised by the zinc die-cast etc., it was expensive. Further, in this configuration, as shown in FIG. 11, a mounting plate 101 for integrating the bearing portion 104 with the insulating case 112 is necessary in addition to the bearing portion 104. As described above, since the mounting plate 101 is required separately from the bearing portion 104, the number of parts is large and the manufacturing process is increased.

  The present invention solves the above-described problems, makes it difficult to influence the rotation of the internal operation member (rotary body) even when the operation shaft (rotation operation shaft) is pressed, and reduces the number of components. It is another object of the present invention to provide a rotary electric component that can reduce costs.

  In order to solve this problem, the present invention provides a metal rotary operation shaft having an operation portion and a shaft portion provided on the rear side of the operation portion, and the shaft portion is inserted to rotate the shaft portion. A bearing member having a bearing portion that supports the shaft, a rotating body that rotates together with the shaft portion, a rotation detection unit that detects a rotation operation of the rotating body, and a case that is integrated with the bearing member. In the rotary electric component in which the rotating body is disposed in a housing space formed by the case and the bearing member, the operation portion of the rotation operation shaft is disposed on the front side of the bearing portion. The shaft portion is formed in a shape larger than the inner diameter of the bearing portion, the shaft portion is inserted into the bearing portion from the front side of the bearing member, the bearing member is formed of a metal plate, and the case And a plate-like part facing A cylindrical portion that protrudes forward from the plate-like portion; and a holding portion that protrudes rearward from the plate-like portion to hold the case. The cylindrical portion includes an annular step portion and A main body portion located between the annular step portion and the plate-like portion, and a small diameter portion disposed on the front side of the annular step portion and having a smaller diameter than the main body portion, the small diameter portion being provided The bearing portion is configured, and the distal end of the small diameter portion is opposed to the operation portion positioned on the front side of the small diameter portion.

  According to this aspect, even if an undesired force acts on the operation portion of the rotary operation shaft due to a collision or the like, and the operation portion and the tubular portion of the bearing member strongly contact each other, the tubular portion is Since it is possible to absorb the impact, it is possible to make it difficult to influence the rotating operation of the rotating body. Therefore, the operational feeling of the rotating electrical component can be kept good. In addition, since the bearing member is provided with a holding portion for holding the case, it can also serve as a mounting plate for integrating the bearing portion with the case, and the number of components can be reduced.

  In the rotating electrical component of the present invention, the radial step size of the annular step portion is larger than the thickness of the main body portion and the small diameter portion of the cylindrical portion.

  According to this aspect, since the step in the radial direction of the annular step portion is larger than the thickness of the main body portion and the small diameter portion of the cylindrical portion, the operation portion and the cylindrical portion of the bearing member hit strongly due to a collision or the like. However, the cylindrical portion is more easily deformed at the annular step portion and can absorb the impact. Therefore, since an excessive force can be absorbed by the annular step portion, it is possible to prevent the rotating body and the surrounding members from being plastically deformed.

  In the rotary electric component of the present invention, the main body portion of the cylindrical portion is formed in a cylindrical shape, and holds the rotating body rotatably.

  According to this aspect, if the main body portion of the cylindrical portion is formed in a cylindrical shape, and the rotating body is formed so as to be in sliding contact with the cylindrical portion, it can be easily rotatably held, so there is no rattling or catching Smooth rotation operation is possible.

  The rotary electrical component of the present invention includes a driving body fitted to an end portion of the rotary operation shaft on the rear side of the shaft portion, and the end portion of the shaft portion has an axial direction of the shaft portion. A projecting portion projecting outside that intersects with the rotating body, and a central through hole penetrating in the axial direction of the shaft portion, and a through hole through which the projecting portion can be inserted into the central through hole. The recessed portion and the through recessed portion have a predetermined angle with respect to the rotation center of the shaft portion, the restricting portion through which the protruding portion cannot be inserted, and the drive body in a state in which the drive body is movable in the axial direction. An engagement portion that engages in the circumferential direction, and the shaft portion and the protruding portion are inserted from the front side of the rotating body into the central through hole and the through recess, so that the shaft portion has a predetermined angle. In the rotated state, the protruding portion is on the rear side of the restricting portion. Said drive member position to while being opposed to the regulation portion is fitted on the protruding portion, the rotation of the shaft portion relative to the rotary member by the drive member is restricted, and wherein the.

  According to this aspect, the end of the rotation operation shaft is provided with a protruding portion that protrudes outward, and the driving body is fitted at an angle that prevents the protruding portion from passing through the restricting portion that cannot be inserted. Even when the operation shaft is operated, it is sure to prevent the shaft portion from coming off to the front side. Since the rotating body is provided with an engaging portion that engages the driving body in the circumferential direction in a state where the driving body can be moved in the axial direction, the rotation operation shaft can slide in the front-rear direction. The rotating body can be rotated in the rotation direction.

  In the rotary electrical component of the present invention, a push switch that is driven in accordance with a pressing operation to the rear side of the rotary operation shaft is disposed on the rear side of the drive body, and the shaft portion passes through the center through hole. An insertion portion that is inserted through the hole, and an intermediate portion that is disposed between the insertion portion and the operation portion and is formed in a shape larger than the diameter of the insertion portion, and on the rear side of the intermediate portion A contact portion that can contact the front surface portion of the rotating body located around the central through-hole is provided, and the push switch is driven by the rearward movement of the rotation operation shaft. And before the said operation part contact | abuts to the said small diameter part of the said bearing member, the said contact part contact | abuts the front part of the said rotary body, and the said rotary body is the said case and the said contact part. The abutting portion is interposed between the front surfaces of the rotating body. They are oppositely disposed in a spaced apart condition, characterized in that.

  According to this aspect, when the push switch is driven by a pressing operation to the rear side of the rotation operation shaft and further pressed, the operation portion is provided on the shaft portion before contacting the small diameter portion of the bearing member. The abutting portion in contact with the front surface portion of the rotating body is supported by the case via the rotating body. Thereby, since the accommodation space in which the rotating body is disposed is secured, the rotating operation of the rotating body can be hardly affected. In addition, since it is possible to prevent excessive force from acting on the push switch, even if a strong pressing force is applied to the rear side of the rotary operation shaft, the function of the push switch is not easily impaired. Is possible.

  In the rotating electrical component according to the aspect of the invention, the rotation detection unit includes a conductive pattern provided on a rear surface of the rotating body and a slider provided in the case and in sliding contact with the conductive pattern. It is characterized by that.

  According to this aspect, the rotation operation of the rotating body can be detected with a simple configuration using the conductive pattern and the slider.

  According to the present invention, the cylindrical portion of the bearing member can absorb the impact applied to the rotating operation shaft by the annular stepped portion, so that the rotating operation of the rotating body is hardly affected. it can. In addition, since the holding member for holding the case is provided on the bearing member, the number of parts can be reduced. Therefore, it is possible to provide a rotary electric component that can maintain a good operation feeling, reduce the number of components, and reduce the cost.

It is a perspective view which shows the rotation type electrical component of embodiment of this invention. It is a disassembled perspective view which shows the rotary electrical component of embodiment of this invention. It is a side view which shows the rotation type electrical component of embodiment of this invention. It is the schematic cross section cut | disconnected by the IV-IV line of FIG. It is a schematic diagram which shows the state by which the drive body was fitted by the edge part of the rotation operation shaft. FIG. 6A is a schematic diagram illustrating a rotating body, FIG. 6A is a plan view of the rotating body, FIG. 6B is a front view of the rotating body, and FIG. 6C is a bottom view of the rotating body. It is a schematic diagram which shows the state by which the rotating operation shaft was pressed. It is a schematic diagram which shows the state in which excessive pressing force was added to the rotating operation shaft. It is a schematic diagram which shows the state which absorbed the still stronger than the pressing force in FIG. 8 by the annular level | step-difference part. It is principal part sectional drawing of the conventional rotary electrical component. It is a disassembled perspective view of the conventional rotating electrical component.

[First Embodiment]
The rotary electrical component 1 in the first embodiment will be described below.

  FIG. 1 is a perspective view showing a rotary electrical component 1 according to the first embodiment. FIG. 2 is an exploded perspective view showing the rotary electrical component 1.

  As shown in FIG. 1, the rotary electrical component 1 includes a metal rotation operation shaft 10 and a bearing member 20 having a bearing portion 25 through which the rotation operation shaft 10 is inserted and rotatably supports the rotation operation shaft 10. And a case 50 integrated with the bearing member 20.

  As shown in FIG. 2, the leaf spring 35, the rotating body 31, the driving body 15, the elastic member 18, and the movable contact portion 41 are accommodated between the case 50 and the bearing member 20. Further, the case 50 is provided with a fixed contact portion 42 and a slider 45 formed of a metal member, and each is connected to the terminal portion 40. The elastic member 18, the movable contact portion 41, and the fixed contact portion 42 constitute the push switch 4.

  In the following description, when viewed from the operator side who operates the rotary electrical component 1, the rotation operation shaft 10 side (Z2 side) in FIGS. 1 and 2 is the front side, and the case 50 side (Z1 side) is the rear side. Call it. In addition, the figure seen from the Y1 side is a front view, the figure seen from the Z2 side is a plan view, and the figure seen from the Z1 side is a bottom view.

  The movable contact portion 41 is formed of a metal member having a spring property, and includes a ring-shaped outer peripheral portion and a central portion that is arranged inside the outer peripheral portion and protrudes toward the Z2 side from the outer peripheral portion. The central portion and the outer peripheral portion of the movable contact portion 41 are connected by a connection portion obtained by bending a metal member, and the connection portion can be elastically deformed in the front-rear direction (Z1-Z2 direction).

  FIG. 3 is a side view showing the rotary electrical component 1, and FIG. 4 is a schematic cross-sectional view taken along line IV-IV in FIG. FIG. 5 is a schematic diagram illustrating a state in which the driving body 15 is fitted to the end 12 a on the rear side of the shaft portion 12 of the rotation operation shaft 10. 6A and 6B are schematic diagrams illustrating the rotating body 31. FIG. 6A is a plan view of the rotating body 31, FIG. 6B is a front view of the rotating body 31, and FIG. FIG.

  As shown in FIGS. 2 to 4, the rotary operation shaft 10 includes the operation unit 11 formed in a shape (for example, a D-shaped cross section) that has an outer shape larger than the inner diameter of the bearing unit 25, and the bearing unit 25. And a shaft portion 12 having an outer diameter that is slidable. The operation portion 11 is formed in a shape having an attachment portion 11b that can attach an operation knob for an operator to operate. The shaft portion 12 includes an insertion portion 12c that can be inserted into the rotating body 31, and an intermediate portion 12d that is formed in a shape larger than the diameter of the insertion portion 12c. Further, the end portion 12a of the shaft portion 12 is not formed in a columnar shape, but is provided with a protruding portion 12b protruding outside that intersects the axial direction (Z1-Z2 direction) of the shaft portion 12.

  The bearing member 20 is formed of a metal plate, and a plate-like portion 21 that faces the case 50 so as to overlap the case 50, a cylindrical portion 22 that protrudes forward from the plate-like portion 21, and a plate And a holding portion 23 that protrudes rearward from the shape portion 21 and holds the case 50. The cylindrical portion 22 has an annular stepped portion 22b, a main body portion 22a located between the annular stepped portion 22b and the plate-like portion 21, and a front side of the annular stepped portion 22b. And a small-diameter portion 22c having a small diameter. The annular step portion 22 b is formed over the entire circumference of the cylindrical portion 22. The dimension of the step in the radial direction of the annular step portion 22b (dimension L shown in FIG. 4) is larger than the thickness of the main body portion 22a and the small diameter portion 22c of the cylindrical portion 22. Specifically, the thickness of the metal plate forming the plate-like portion 21 is 0.4 mm, and the step size in the radial direction of the annular step portion 22b is 1.2 mm. The main body portion 22 a and the small diameter portion 22 c are formed by drawing a metal plate, and the thickness of the main body portion 22 a and the small diameter portion 22 c is thinner than the thickness of the plate-like portion 21. Therefore, the step size of the annular step portion 22b is larger than the thickness of the main body portion 22a and the thickness of the small diameter portion 22c. The small-diameter portion 22c constitutes the bearing portion 25, and the tip 22d of the small-diameter portion 22c is opposed to the facing surface 11a of the operation portion 11 located on the front side of the small-diameter portion 22c.

  The bearing member 20 has a holding portion 23 that holds the case 50. The holding portion 23 is for integrating the bearing member 20 and the case 50. Specifically, in a state where a spacer 51, a case 50, and a plate-like portion 21 of the bearing member 20, which will be described later, are overlapped, a plurality of locking pieces provided at the front end of the holding portion 23 are arranged on the rear side of the spacer 51. The case 50 and the spacer 51 are held by the holding portion 23 by being bent to the surface side. Unlike the present embodiment, in the case of a bearing member constituted only by a plate-like portion 21 facing the case 50 and a cylindrical portion 22 protruding forward from the plate-like portion 21, the case 50 is integrated. A mounting plate is required as a separate member. On the other hand, in this embodiment, the bearing member 20 also serves as a mounting plate for integrating the bearing portion 25 with the case 50.

  As shown in FIG. 4, the rotating body 31 is configured to face the plate-like portion 21 via a front-side leaf spring 35 and to contact a slider 45 disposed on the case 50 on the rear side. The On the other hand, as shown in FIG. 2, the cylindrical portion 22 is formed in a cylindrical shape, and by forming a part of the rotating body 31 so as to be in sliding contact with the cylindrical portion 22, the rotating body 31 can be rotated. Retained. As a result, the rotating body 31 can be smoothly rotated without rattling or catching at a position sandwiched between the leaf spring 35 and the case 50 including the slider 45.

  The slider 45 is formed of a metal member having spring properties, and is disposed in the case 50 by insert molding, for example. In this case, a spacer 51 is disposed on the rear side of the case 50 and is held by the holding portion 23 integrally with the case 50. Thereby, the hole formed in the case 50 for insert molding is concealed so that the slider 45 is not exposed to the rear side, and unnecessary electrical problems with the slider 45 are prevented.

  As shown in FIGS. 4 and 5, the drive body 15 is fitted to the end portion 12 a on the rear side of the shaft portion 12 of the rotation operation shaft 10 inserted through the rotation body 31. As shown in FIG. 5, the side surface of the driving body 15 is formed in an uneven shape.

  As shown in FIG. 6A, the rotating body 31 has a circular outer diameter in plan view, and a central through hole 31 a penetrating in the axial direction of the shaft portion 12 is formed at the center thereof. A through recess 31b is provided in the center through hole 31a so as to be able to be inserted through the protrusion 12b. In addition, as shown in FIG. 6B, the rotating body 31 is formed with a sliding contact portion 31 f that is in sliding contact with the cylindrical portion 22. Further, as shown in FIG. 6C, on the bottom surface side, the drive body 15 is engaged with the drive body 15 in the circumferential direction in a state where the drive body 15 can be moved in the axial direction corresponding to the uneven shape of the drive body 15. An engaging portion 31c is formed.

  The rotating body 31 is further provided with a restricting portion 31d that has a predetermined angle (90 degrees in the present embodiment) with respect to the rotation center of the shaft portion 12 with respect to the through recess 31b, and that the protruding portion 12b cannot be inserted. Yes. As shown in FIGS. 6 (a) and 6 (c), the central through hole 31a and the through recess 31b can be inserted into the protruding portion 12b of the end 12a of the shaft portion 12, and rotated 90 degrees after the insertion. When the protruding portion 12b of the end portion 12a is fitted to the driving body 15 in a state where the protruding portion 12a is fitted, the protruding portion 12b is prevented from coming off. That is, the restricting portion 31d is positioned on the front side of the protruding portion 12b and is in an opposed state. When the shaft portion 12 is pulled out to the front side, the protruding portion 12b hits the restricting portion 31d, so that the end portion 12a It has become a stopper.

  The shaft portion 12 has an insertion portion 12c inserted through the central through hole 31a, and an intermediate portion 12d formed between the insertion portion 12c and the operation portion 11 and having a shape larger than the diameter of the insertion portion 12c. And have. At the same time, an abutting portion 12e capable of abutting on the front surface portion 31e of the rotating body 31 located around the central through hole 31a is provided on the rear side of the intermediate portion 12d. For this reason, the range in which the shaft part 12 can slide in the center through hole 31a in the front-rear direction is restricted by the length of the insertion part 12c.

  Thereby, when the rotation operation shaft 10 is operated in the front-rear direction, the rotation operation shaft 10 and the drive body 15 are integrated and can slide in the front-rear direction along the engaging portion 31 c of the rotation body 31. . On the other hand, when the rotation operation shaft 10 is operated in the rotation direction, the drive body 15 and the rotation body 31 rotate integrally. Thereby, when the rotary operation shaft 10 is operated, the rotary body 31 can be rotated in the rotation direction while being slidable in the front-rear direction (Z1-Z2 direction).

  Further, the rotating body 31 has a conductive pattern 32 in the circumferential direction as shown in FIG. The conductive pattern 32 includes a ring-shaped first conductive portion 32a and a second conductive portion 32b that is divided in the circumferential direction. Since the first conductive portion 32a and the second conductive portion 32b are integrally formed, they are electrically connected. On the other hand, between the 2nd electroconductive parts 32b adjacent to the circumferential direction is the insulation part 33, and is insulated electrically. The second conductive portions 32b are provided at a pitch of 24 degrees so as to divide 360 degrees into 15 parts, for example.

  The case 50 is provided with a plurality of sliders 45 that are in sliding contact with the rotating body 31. As shown in FIG. 4, a plurality of sliders 45 are arranged at positions where they can come into sliding contact with the conductive pattern 32 to constitute the rotation detecting means 30. The first conductive portion 32a is always in contact with the slider 45 that is in sliding contact with the first conductive portion 32a. On the other hand, the second conductive portion 32 b is brought into contact with and separated from the slider 45 that is in sliding contact with the second conductive portion 32 b by the rotation of the rotating body 31. For this reason, due to the rotation of the rotating body 31, the slider 45 that is in sliding contact with the first conductive portion 32a and the slider 45 that is in sliding contact with the second conductive portion 32b are electrically conductive or non-conductive. Therefore, the rotation detection means 30 can generate a pulse signal corresponding to the rotation angle. That is, the rotary electrical component 1 operates as a pulse switch and can detect rotation.

  In addition, the unevenness | corrugation is formed in the circumferential position where the leaf | plate spring 35 contact | abuts on the front side of the rotary body 31 shown to Fig.6 (a). For this reason, when the rotating body 31 rotates, an operation feeling can be obtained.

  Further, as shown in FIG. 4, the driving body 15 is in contact with the elastic member 18. The elastic member 18 is made of, for example, a rubber rubber and is provided so as to be elastically deformable in the front-rear direction (Z1-Z2 direction). In a state where the operation portion 11 is not pressed, the movable contact portion 41 and the fixed contact portion 42 are separated from each other by the urging force of the elastic member 18.

  7 to 9 are schematic views showing a state in which the rotation operation shaft 10 is pressed in the Z1 direction in the schematic cross-sectional view of FIG. FIG. 7 shows a state in which a normal pressing force is applied to the rotation operation shaft 10, and FIG. 8 shows a state in which an excessive pressing force is applied to the rotation operation shaft 10. FIG. 9 shows a state in which a stronger impact is absorbed by the annular step portion 22b in the portion A of FIG.

  As shown in FIG. 7, the drive body 15 slides in the Z1 direction along the engaging portion 31c of the rotating body 31 and the elastic member 18 is elastically deformed by a normal pressing operation. Thereby, the elastic member 18 elastically deforms the movable contact portion 41, and the movable contact portion 41 comes into contact with the fixed contact portion 42. Thereby, the rotary electrical component 1 functions as the push switch 4. The abutting portion 12e is disposed opposite to the front surface portion 31e of the rotating body 31 so that the rotating body 31 is sandwiched between the case 50 and the abutting portion 12e. The rotating body 31 is sandwiched between the leaf spring 35 and the case 50, and the sliding operation of the driving body 15 is hardly transmitted to the rotating body 31, so that the rotating operation of the rotating body 31 is not affected. .

  When an excessive pressing force is applied to the rotary operation shaft 10, the drive body 15 further slides in the Z1 direction as shown in FIG. At this time, the elastic member 18 functions as a stopper, and the contact portion 12e provided on the rear side of the intermediate portion 12d of the shaft portion 12 whose outer shape is larger than the central through hole 31a of the rotating body 31 The Z1 side outer peripheral portion on the rear side of the rotating body 31 functions as a stopper that abuts the front surface portion 31 e and abuts the case 50. Further, when pressed more strongly than the state of FIG. 8, the facing surface 11 a of the operation portion 11 of the rotary operation shaft 10 is formed so as to contact the tip 22 d of the small diameter portion 22 c of the cylindrical portion 22 of the bearing member 20. Yes. For this reason, the excessive pressing force applied to the rotary operation shaft 10 can be distributed and received at various places, and the normal operation of the rotary electric component 1 can be maintained.

  Further, even if an undesired force acts on the operation portion 11 of the rotary operation shaft 10 due to a collision or the like and the operation portion 11 and the tip 22d of the small diameter portion 22c of the bearing member 20 are strongly hit, as shown in FIG. In addition, the cylindrical portion 22 is deformed by the annular step portion 22b, and the shock can be absorbed by the annular step portion 22b. Since the annular step portion 22b provided in the cylindrical portion 22 can be deformed and can absorb excessive force by the annular step portion 22b, the plate-like portion 21 located at the root of the cylindrical portion 22 and the rotation around the plate-like portion 21 It is possible to prevent members such as the body 31 from being plastically deformed.

  Unlike the rotary electric component 1 of the present embodiment that can absorb the pressing force, when the excessive pressing force applied to the rotary operation shaft 10 is received only by the bearing member 20, the plate thickness can prevent the deformation. It is necessary to form. However, in order to form the plate-like portion 21 and the cylindrical portion 22 integrally, it is difficult to realize it unless cutting or die casting. When these processing methods are used, the cost becomes high. Furthermore, although the holding | maintenance part 23 holding the case 50 is required, it is difficult to carry out integral processing by cutting or die-casting, and another member, such as a mounting plate, must be prepared. For this reason, the number of parts is large and the number of assembly steps is also increased.

  In the rotating electrical component 1 of the present embodiment, the plate-like portion 21 and the cylindrical portion 22 are integrally formed by a squeezing process using a thin metal plate. Even if the bearing member 20 has a plate thickness capable of integrally forming the plate-like portion 21 and the cylindrical portion 22 by squeezing, the cylindrical portion 22 can absorb the impact by the annular step portion 22b. Therefore, even if the rotary operation shaft 10 receives an excessive pressing force, it is possible to make it difficult to affect the rotation of the internal rotary body 31, so that the operational feeling of the rotary electrical component 1 in a normal state is improved. Can keep. Further, since the holding part 23 for holding the case 50 is formed integrally with the plate-like part 21 and the cylindrical part 22, the number of parts of the rotary electric part 1 can be reduced and the cost can be reduced. .

  Hereinafter, the effect by having set it as this embodiment is demonstrated.

  In the rotary electric component 1 of the present embodiment, the operation portion 11 of the rotation operation shaft 10 is disposed on the front side of the bearing portion 25 and is formed in a shape larger than the inner diameter of the bearing portion 25, and the shaft portion 12 is The bearing member 25 is inserted into the bearing portion 25 from the front side. The bearing member 20 is formed of a metal plate, and is formed of a plate-like portion 21 that is opposed to be overlapped with the case 50, a cylindrical portion 22 that protrudes forward from the plate-like portion 21, and the plate-like portion 21. And a holding portion 23 that protrudes rearward and holds the case 50. The cylindrical portion 22 has an annular step portion 22b, a main body portion 22a positioned between the annular step portion 22b and the plate-like portion 21, and a front side of the annular step portion 22b. And a small-diameter portion 22c having a small diameter. The small-diameter portion 22c constitutes the bearing portion 25, and the tip 22d of the small-diameter portion 22c faces the operation portion 11 located on the front side of the small-diameter portion 22c.

  According to this aspect, even if an undesired force acts on the operation portion 11 of the rotation operation shaft 10 due to a collision or the like, and the operation portion 11 and the tubular portion 22 of the bearing member 20 strongly contact each other, the tubular portion Since 22 can absorb the impact by the annular stepped portion 22b, it can hardly affect the rotating operation of the rotating body 31. Therefore, the operation feeling of the rotary electric component 1 can be kept good. Further, since the holding member 23 for holding the case 50 is provided in the bearing member 20, it can also serve as a mounting plate for integrating the bearing 25 with the case 50, and the number of parts can be reduced. It becomes possible.

  In the rotary electrical component 1 of the present embodiment, it is preferable that the step size in the radial direction of the annular step portion 22b is larger than the thickness of the main body portion 22a and the small diameter portion 22c of the cylindrical portion 22. By doing so, the step in the radial direction of the annular step portion 22b is larger than the thickness of the main body portion 22a and the small diameter portion 22c of the cylindrical portion 22, so that the cylindrical portion of the operation portion 11 and the bearing member 20 due to a collision or the like. Even if it hits 22 strongly, the cylindrical part 22 is easy to deform | transform with the cyclic | annular level | step-difference part 22b, and can absorb an impact. Therefore, since excessive force can be absorbed by the annular step portion 22b, it is possible to prevent the plate-like portion 21 and members such as the rotating body 31 located around the plate-like portion 21 from being plastically deformed.

  In the rotating electrical component 1 of the present embodiment, the main body portion 22a of the cylindrical portion 22 is preferably formed in a cylindrical shape, and preferably holds the rotating body 31 in a rotatable manner. In this way, the main body portion 22a of the cylindrical portion 22 is formed in a cylindrical shape, and if the rotating body 31 is formed so as to be in sliding contact with the cylindrical portion 22, it can be easily rotatably held. Smooth rotation operation is possible without being caught.

  The rotary electrical component 1 according to the present embodiment includes a driving body 15 that is fitted to an end portion 12a on the rear side of the shaft portion 12 of the rotation operation shaft 10, and the end portion 12a of the shaft portion 12 includes a shaft portion. The protrusion part 12b protruded to the outer side which cross | intersects 12 axial directions is provided. At the same time, the rotating body 31 is provided with a central through hole 31a penetrating in the axial direction of the shaft portion 12, and a through recess 31b through which the protruding portion 12b can be inserted continuously to the central through hole 31a. Further, the rotating body 31 has a predetermined angle with respect to the center of rotation of the shaft portion 12 and the restricting portion 31d through which the protruding portion 12b cannot be inserted, and the drive body 15 can be moved in the axial direction. In this state, an engagement portion 31c that engages with the drive body 15 in the circumferential direction is provided. Then, when the shaft portion 12 and the projecting portion 12b are inserted from the front side of the rotating body 31 into the central through hole 31a and the through recess portion 31b and the shaft portion 12 is rotated by a predetermined angle, the projecting portion 12b becomes the regulating portion 31d. The driving body 15 is fitted to the protruding portion 12b and is positioned opposite to the restriction portion 31d. The driving body 15 restricts the rotation of the shaft portion 12 relative to the rotating body 31. According to this aspect, the end portion 12a of the shaft portion 12 of the rotary operation shaft 10 is provided with the protruding portion 12b protruding outward, and the driving body is at an angle that prevents the restricting portion 31d through which the protruding portion 12b cannot be inserted. Since 15 is fitted, even when the rotary operation shaft 10 is operated, the shaft portion 12 is reliably prevented from coming off to the front side. Since the rotating body 31 is provided with an engaging portion 31c that engages the driving body 15 in the circumferential direction in a state where the driving body 15 can be moved in the axial direction, the rotation operation shaft 10 is slid in the front-rear direction. In addition to being movable, the rotating body 31 can be rotated in the rotational direction.

  In the rotary electrical component 1 of the present embodiment, a push switch 4 that is driven in accordance with a pressing operation to the rear side of the rotary operation shaft 10 is disposed on the rear side of the driving body 15. The shaft portion 12 includes an insertion portion 12c that is inserted into the central through hole 31a, and an intermediate portion 12d that is disposed between the insertion portion 12c and the operation portion 11 and has a shape larger than the diameter of the insertion portion 12c. And an abutting portion 12e capable of abutting against the front surface portion 31e of the rotating body 31 located around the central through hole 31a is provided on the rear side of the intermediate portion 12d. Further, after the push switch 4 is driven by the rearward movement of the rotary operation shaft 10 and before the operation portion 11 abuts on the small diameter portion 22c of the bearing member 20, the contact portion 12e is rotated. The abutting portion 12e is disposed opposite to the front surface portion 31e of the rotating body 31 so that the rotating body 31 is sandwiched between the case 50 and the abutting portion 12e. ing. According to this aspect, when the push switch 4 is driven by a pressing operation to the rear side of the rotation operation shaft 10 and is further pressed, the shaft is moved before the operation portion 11 contacts the small diameter portion 22 c of the bearing member 20. A contact portion 12 e provided in the portion 12 contacts the front surface portion 31 e of the rotating body 31 and is supported by the case 50 via the rotating body 31. Thereby, since the accommodation space in which the rotating body 31 is disposed is ensured, the rotating operation of the rotating body 31 can be hardly affected. Further, since it is possible to prevent an excessive force from acting on the push switch 4, even when a strong pressing force is applied to the rear side of the rotary operation shaft 10, the function of the push switch 4 is not easily impaired. It becomes possible.

  In the rotating electrical component 1 of the present embodiment, the rotation detecting means 30 includes a conductive pattern 32 provided on the rear surface of the rotating body 31, and a slider 45 provided in the case 50 and in sliding contact with the conductive pattern 32. It is comprised by. According to this aspect, the rotation operation of the rotating body 31 can be detected with a simple configuration using the conductive pattern 32 and the slider 45.

  As described above, the rotary electrical component 1 according to the embodiment of the present invention has been specifically described. However, the present invention is not limited to the above-described embodiment, and various modifications can be made without departing from the scope of the invention. It is possible to implement. For example, the present invention can be modified as follows, and these embodiments also belong to the technical scope of the present invention.

  (1) In the present embodiment, the rotating body 31 is not limited to a circular outer shape. For example, you may form in the polygon along the outer periphery of the 2nd electroconductive part 32b dividedly formed. Even in this case, it can be rotated so as to be in sliding contact with the cylindrical portion 22.

  (2) In the present embodiment, the push switch 4 is configured such that the elastic member 18 elastically deforms the movable contact portion 41 and the movable contact portion 41 contacts the fixed contact portion 42. However, the push switch 4 is not limited thereto. is not. For example, a dome-shaped metal plate may be used as the movable contact, and the dome-shaped metal plate may be in contact with the rear side of the driving body 15.

  (3) In the present embodiment, the rotary electrical component 1 having the push switch 4 has been described. However, a rotary electrical component having no push switch may be used. For example, a rotary electric component that does not have a push switch does not need to be operated by pressing the operating part, but when the rotary electric part is mounted on an electronic device and an operation knob is attached to the mounting part, the rotary operation shaft There was a risk of being pushed hard. Moreover, there is a possibility that a strong impact may be applied accidentally during use of an electronic device mounted on an automobile or the like. Therefore, it is effective to make a rotating electrical component that does not incorporate a push switch hardly affect the rotating operation.

DESCRIPTION OF SYMBOLS 1 Rotation-type electrical component 4 Push switch 10 Rotation operation shaft 11 Operation part 11a Opposing surface 11b Attachment part 12 Shaft part 12a End part 12b Protrusion part 12c Insertion part 12d Intermediate part 12e Contact part 15 Driver 18 Elastic member 20 Bearing member 21 Plate-like part 22 Cylindrical part 22a Main body part 22b Annular step part 22c Small diameter part 22d Tip 23 Holding part 25 Bearing part 30 Rotation detection means 31 Rotating body 31a Central through-hole 31b Through recess 31c Engagement part 31d Restriction part 31e Front part 31f Sliding contact portion 32 Conductive pattern 32a First conductive portion 32b Second conductive portion 33 Insulating portion 40 Terminal portion 41 Movable contact portion 42 Fixed contact portion 45 Slider 50 Case 51 Spacer

Claims (6)

A metal rotary operation shaft having an operation portion and a shaft portion provided on the rear side of the operation portion; a bearing member having a bearing portion through which the shaft portion is inserted and rotatably supported by the shaft portion; A rotating body that rotates together with the shaft portion, a rotation detecting means that detects a rotating operation of the rotating body, and a case that is integrated with the bearing member, and is formed by the case and the bearing member. In the rotating electrical component in which the rotating body is disposed in the accommodation space,
The operation portion of the rotation operation shaft is disposed on the front side of the bearing portion and is formed in a shape larger than the inner diameter of the bearing portion, and the shaft portion is formed on the bearing portion from the front side of the bearing member. Is inserted through,
The bearing member is formed of a metal plate, and has a plate-like portion facing the case, a cylindrical portion protruding forward from the plate-like portion, and a rear portion protruding from the plate-like portion. A holding portion for holding,
The cylindrical portion includes an annular step portion, a main body portion positioned between the annular step portion and the plate-like portion, and a small diameter that is disposed on the front side of the annular step portion and has a smaller diameter than the main body portion. Are provided, and
The rotary electric component characterized in that the small-diameter portion constitutes the bearing portion, and the tip of the small-diameter portion is opposed to the operation portion located on the front side of the small-diameter portion.   The rotary electric component according to claim 1, wherein a dimension of a step in a radial direction of the annular step portion is larger than a thickness of the main body portion and the small diameter portion of the cylindrical portion.   The rotary electric component according to claim 1 or 2, wherein the main body portion of the cylindrical portion is formed in a cylindrical shape and holds the rotating body rotatably. Comprising a driving body fitted to an end portion on the rear side of the shaft portion of the rotation operation shaft;
The end portion of the shaft portion is provided with a protruding portion that protrudes outwardly intersecting the axial direction of the shaft portion, and the rotating body has a central through hole that penetrates in the axial direction of the shaft portion, A through-recess that can be inserted through the protrusion continuously from the central through-hole, and the through-recess has a predetermined angle with respect to the rotation center of the shaft, and a restricting part through which the protrusion cannot be inserted; An engagement portion that engages with the drive body in the circumferential direction in a state in which the drive body is movable in the axial direction;
In a state where the shaft portion and the protruding portion are inserted from the front side of the rotating body into the central through hole and the through recess and the shaft portion is rotated by a predetermined angle, the protruding portion is behind the regulating portion. The driving body is fitted to the projecting portion, and the rotation of the shaft portion relative to the rotating body is regulated by the driving body. The rotary electrical component according to any one of claims 1 to 3. A push switch that is driven in accordance with a pressing operation to the rear side of the rotation operation shaft is disposed on the rear side of the driving body,
The shaft portion includes an insertion portion that is inserted into the central through hole, and an intermediate portion that is disposed between the insertion portion and the operation portion and is formed in a shape larger than the diameter of the insertion portion, On the rear side of the intermediate portion, a contact portion that can contact the front portion of the rotating body located around the central through hole is provided,
After the push switch is driven by the movement of the rotation operation shaft to the rear side, before the operation portion comes into contact with the small diameter portion of the bearing member, the contact portion of the rotary body The abutting portion is disposed opposite to the front surface portion of the rotating body so that the rotating body is in contact with the front surface portion and is sandwiched between the case and the abutting portion. The rotary electrical component according to claim 4, wherein the electrical component is a rotary electrical component.   The said rotation detection means is comprised by the electroconductive pattern provided in the surface of the back side of the said rotary body, and the slider provided in the said case and the said electroconductive pattern, and slidably contacts. The rotary electrical component according to claim 5.

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