JP2009117305A - Rotating operation type electric component - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a rotating operation type electric component which has superior operability since two kinds of rotating operations can be carried out with the same operation member, and in which scraping-off by a coil spring in a housing can be evaded without complicating a manufacturing process. <P>SOLUTION: In the housing, a rotary drive body 14 that is rotatable and reciprocally movable between a first operation position and a second operation position along an axial line direction, first and second rotation members 7, 12 that can be optionally engaged or disengaged with the rotary drive body 14, the coil spring 16 interposed between the second rotary drive member 12 and the rotary drive body 14, and a rotation detecting means to detect rotation of the first and the second rotation members 7, 12 individually are equipped. In the rotation operated type electric component in which the rotary drive body 14 is engaged with the first rotating member 7 at the first operation position, and becomes engaged with the second rotation member 12 when the rotary drive body 14 is arranged at the second operation position opposing to the coil spring 16, the spring receiving member 15 is fixed to one end part of the coil spring 16 in order to make the spring receiving member 15 elastically contact with the rotary drive body 14, and to make the other end part of the coil spring 16 fixed to the second rotation member 12. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

  The present invention relates to a rotary operation type electric component suitable for an in-vehicle electronic device or the like for which an operation area is required to be compact, and more particularly to a rotary operation type electric component capable of two types of rotation operation by the same operation member. .

2. Description of the Related Art Conventionally, in a vehicle-mounted acoustic device or the like, a rotary operation type electric component that can perform two types of rotation operations with the same operation member is known (for example, see Patent Document 1). In such a conventional technique, a drive shaft body to which an operating force is applied is supported by a housing so as to be rotatable and reciprocally movable in an axial direction. Normally, it is arranged at the normal position where it engages with the first rotating body, but when the drive shaft body is slid by a predetermined amount in the axial direction, the pull position where the gear member engages with the second rotating body. It is supposed to be arranged in. That is, the first rotating body and the second rotating body are disposed in the housing around the drive shaft body while being shifted in the axial direction, and between the gear member and the second rotating body. A coil spring is interposed, and when the operating force is not applied to the drive shaft body, the gear member is elastically biased by the coil spring and pushed to the normal position. The rotating body can be rotated integrally with the drive shaft body, and therefore rotation information such as an encoder using the first rotating body as the rotor portion can be detected. Further, when a pulling operation force against the coil spring is applied to the drive shaft body to move the gear member to the pull position, the gear member disengages from the first rotating body and the second rotating body. Therefore, it is possible to rotate the second rotating body integrally with the drive shaft body, and therefore, for example, rotation information of a variable resistor having the second rotating body as a rotor portion can be detected. When the pulling operation force on the drive shaft body is removed, the gear member is pushed back to the normal position by the elastic force of the coil spring, and accordingly, the drive shaft body slides a predetermined amount toward the back in the axial direction. ing.
JP 2000-40443 A

  If the drive shaft body can be reciprocated in the axial direction so that the first rotary body and the second rotary body can be selectively rotated as in the prior art described above, the user can drive the drive shaft body. The two types of rotation operations can be performed continuously without changing the operation member integrated with the coil member, but both ends of the coil spring may slide relative to the gear member and the second rotating body during the rotation operation. For this reason, there is a problem that a special process must be added at the time of manufacture so that undesired wear does not occur, and thus productivity is inevitably deteriorated and manufacturing cost is inevitably increased. That is, the coil spring must be subjected to terminal treatment such as removing burrs at both ends in advance, and all the parts that may come into sliding contact with the end of the coil spring in the housing are lubricated. Since an agent must be applied, measures to avoid scraping by the coil spring have become a major factor complicating the manufacturing process.

  The present invention has been made in view of the actual situation of the prior art as described above, and its purpose is to perform two types of rotation operations with the same operation member, so that the operability is excellent and the manufacturing process is not complicated. Another object of the present invention is to provide a rotary operation type electric component that can avoid scraping due to a coil spring in the housing.

  In order to achieve the above object, the present invention includes a housing, and a rotary drive body supported by the housing so as to be rotatable and reciprocally movable between the first operation position and the second operation position along the axial direction. A first rotating member and a second rotating member which are arranged in the housing so as to be separated from each other in the axial direction and which can be engaged with and disengaged from the rotary driving body, and the rotation of the first rotating member is detected. First rotation detection means, second rotation detection means for detecting rotation of the second rotation member, and the rotation drive body interposed between the rotation drive body and the second rotation member And a coil spring that elastically biases the first drive position toward the first operation position, and when the rotary drive body is disposed at the first operation position, the first rotary member engages with the rotary drive body. And can be rotated integrally, and the rotational drive body is In the rotary operation type electric component in which the second rotating member engages with the rotary drive body and can rotate integrally when disposed at the second operation position against the spring, the coil spring A spring receiving member is fixed to one end of the rotating member, and the spring receiving member is elastically contacted with the rotating driving body, and the other end of the coil spring is fixed to the second rotating member, thereby the rotating driving body. The rotary drive member is configured to slide relative to the spring receiving member when the rotary drive member is rotated without being engaged with the second rotary member.

  The rotary operation type electrical component configured as described above can selectively arrange the rotary drive body at two types of rotary operation positions, the first operation position and the second operation position, and is independent at each operation position. Since rotation detection can be performed, the user can continuously perform two types of rotation operations without changing the operation member integrated with the rotation driving body. In addition, since the rotary drive body is disposed at the second operation position by applying a pressing (or pulling) operation force against the coil spring, if the operation force is removed, the rotation drive body is moved by the elastic force of the coil spring. It is possible to automatically return to the first operation position.

  The coil spring incorporated in the rotary operation type electric component has both ends fixed to the spring receiving member and the second rotating member, and the spring receiving member is slidable on the rotary drive body. Because of the elastic contact, the coil spring and the spring receiving member do not rotate when the rotational driving body rotates integrally with the first rotating member at the first operation position, and the rotational driving body does not rotate with respect to the spring receiving member. Will slide. Further, when the rotary driving body rotates integrally with the second rotating member at the second operation position, the coil spring and the spring receiving member also rotate integrally. Therefore, there is no possibility that the coil spring slides with other members during the rotation operation, and scraping by the coil spring can be effectively prevented. Furthermore, since complicated terminal treatment of the coil spring is not required and the number of places where the lubricant is applied can be reduced, productivity is improved and manufacturing costs are easily reduced.

  In the above configuration, the spring receiving member has an inner cylindrical wall portion in which holding protrusions are formed at a plurality of locations on the outer peripheral surface, and press-fitting the inner cylindrical wall portion to the inner peripheral side at one end of the coil spring, It is preferable that one end portion of the coil spring is fixed to the spring receiving member because the spring receiving member can be easily and reliably attached to the coil spring. Also, in the case where the other member is arranged in the radial inner space of the coil spring, the inner cylindrical wall portion of the spring receiving member is interposed between the other member and one end portion of the coil spring. Therefore, even if the coil spring expands and contracts with the movement of the rotary drive body along the axial direction, there is no possibility that one end of the coil spring interferes with other members.

  Further, in the above configuration, the second rotating member has an outer cylindrical wall portion in which holding projections are formed at a plurality of locations on the inner peripheral surface, and the outer peripheral side of the other end portion of the coil spring is provided on the outer cylindrical wall portion. It is preferable that the other end of the coil spring is fixed to the second rotating member by press-fitting because the coil spring can be easily and reliably attached to the second rotating member. In this case, the rotation drive body has a first engagement portion for engaging / disengaging with the first rotation member and a second engagement portion for engaging / disengaging with the second rotation member, If the engaged portion that engages and disengages with the second engaging portion is provided on the standing end surface of the outer cylindrical wall portion, the first engaging portion and the second engaging portion are arranged in front of and behind the rotary drive body. It is preferable that it can be provided in a dispersed manner.

  Further, in the above configuration, the housing includes a cylindrical guide wall that guides the rotation drive body in the circumferential direction and the axial direction, and the rotation drive body, the first and second rotation members, and the spring receiving member, Are formed in a hollow shape and are extrapolated to the guide wall, the space (hollow part) inside the guide wall in the radial direction is used as a light guide path, or another part such as a push switch is provided in the hollow part. Since it becomes easy to arrange | position, it is preferable.

  According to the rotary operation type electrical component of the present invention, the rotary drive body that can reciprocate in the axial direction can be selectively disposed at two types of rotary operation positions, the first operation position and the second operation position, Since independent rotation detection can be performed at each operation position, the user can continuously perform two types of rotation operations without changing the operation member integrated with the rotation driving body. Further, the rotary drive body can be automatically returned from the second operation position to the first operation position by the resilient force of the coil spring. Therefore, this rotary operation type electric component is excellent in operability.

  The coil spring incorporated in the rotary operation type electric component of the present invention has both ends fixed to the spring receiving member and the second rotating member, and the spring receiving member slides on the rotary drive body. Since it is elastically contactable, when the rotary drive body rotates integrally with the first rotary member at the first operation position, the coil spring and the spring receiving member do not rotate, and the rotary drive body does not rotate at the second operation position. When rotating integrally with the second rotating member, the coil spring and the spring receiving member also rotate integrally. Therefore, there is no possibility that the coil spring slides with other members during the rotation operation, and scraping by the coil spring can be effectively prevented. Moreover, since complicated terminal treatment of the coil spring is not required and the number of places where the lubricant is applied can be reduced, productivity is improved and manufacturing costs are easily reduced.

  FIG. 1 is an external perspective view of a rotary operation type electrical component according to an embodiment of the present invention, and FIG. 2 is an exploded perspective view of the rotary operation type electrical component. 3 is a cross-sectional view showing a state where the rotary drive body of the rotary operation type electrical component is in the first operation position, FIG. 4 is a cross-sectional view showing a state where the rotary drive body is in the second operation position, and FIG. FIG. 6 is a cross-sectional view showing a state in which the drive body is in the middle of the first operation position and the second operation position, and FIG. 7 is a front view of the rotary operation type electric component, FIG. 8 is a rear view of a first rotation member provided in the rotation operation type electric component, and FIG. 9 is a first case provided in the rotation operation type electric component. FIG. 10 is a perspective view of a rotary drive body provided in the rotary operation type electrical component as seen from an oblique front, 11 is a front view of the rotary drive body, FIG. 12 is a perspective view of the rotary drive body viewed obliquely from the rear, FIG. 13 is a rear view of the rotary drive body, and FIG. 14 is a spring provided in the rotary operation type electric component. FIG. 15 is a perspective view of the spring receiving member as viewed obliquely from the rear, and FIG. 16 is a perspective view of the second rotating member provided in the rotary operation type electric component as viewed from the oblique front. FIG. 17 is a front view of the second rotating member, FIG. 18 is a perspective view of the second rotating member as viewed obliquely from the rear, FIG. 19 is a rear view of the second rotating member, and FIG. FIG. 21A and FIG. 21B are explanatory views showing a self-return mechanism of the second rotating member.

  The rotary operation type electric component shown in FIGS. 1 to 7 includes a first case 1 arranged at the front (upper side in the drawing in FIG. 3) and a second case arranged at the rear (the lower side in the drawing in FIG. 3). A housing constituted by the case 2 is provided, and the second case 2 has a guide wall 2a protruding forward. The first case 1 and the second case 2 have the same outer diameter, and are superposed in the axial direction (the rotational axis direction of the rotary drive body 14 described later) while being positioned with respect to each other. The two cases 1 and 2 are integrated by caulking a plurality of leg pieces 3 c extending from the mounting plate 3 disposed on the front surface of the first case 2 to the rear surface of the second case 2. A contact pattern 4 is disposed on the annular inner bottom of the first case 1, and a terminal 5 derived from the contact pattern 4 extends to the outside of the first case 1. In addition, a first rotating member 7 having a slider 6 attached to the back surface is rotatably incorporated in the space in the first case 1 covered with the mounting plate 3, and the rotating member A ring-shaped click spring 8 that is elastically contacted with the front surface of 7 is incorporated. Similarly, a contact pattern 9 is disposed on the annular inner bottom of the second case 2, and a terminal 10 derived from the contact pattern 9 extends to the outside of the second case 2. In addition, a second rotating member 12 having a slider 11 attached to the back surface is rotatably incorporated in the space inside the second case 2, and the rotating member 12 resists rotational operation force. A torsion coil spring 13 for urging is incorporated. A rotary drive body 14 that can selectively engage with the first and second rotary members 7 and 12 is extrapolated to the guide wall 2a so as to be rotatable and reciprocally movable along the axial direction. A ring-shaped spring receiving member 15 fixed to the front end of the compression coil spring 16 is slidably and elastically contacted with the inner peripheral portion on the back side of the rotary drive body 14. The end portion is fixed to a partition wall 12 a erected on the inner peripheral portion of the second rotating member 12.

  The configuration of the rotary operation type electric component will be described in detail. The first case 1 is formed in an annular shape having an opening 1a into which the guide wall 2a is loosely inserted. A boss 1b protrudes at a location. The mounting plate 3 is obtained by punching a metal plate and bending it. A flat plate portion 3b which is placed on the front surface of the first case 1 and has an opening 3a in the center portion thereof, and the flat plate portion 3b is connected to the first and second plates. A plurality of (six in this embodiment) leg pieces 3c extending rearward along the outer wall surfaces of the second cases 1 and 2. Of these leg pieces 3c, a plurality of (four on the present embodiment side) leg pieces 3c that are caulked to the back surface of the second case 2 are provided with engaging holes 3d and 3e at predetermined positions. The boss 1b of the first case 1 is inserted into the engagement holes 3d opened at the two locations. Also, bosses 2c described later of the second case 2 are inserted into the engagement holes 3e opened at two positions near the rear. The two leg pieces 3c in which the engagement holes 3d and 3e are not formed serve as attachment legs (snap legs) for attaching the rotary operation type electric component to a printed board (not shown). The contact pattern 4 (see FIG. 9), which is a conductive pattern for the rotary encoder exposed at the inner bottom of the first case 1, and the terminal 5 led out from the contact pattern 4 are made of the same metal plate, It is formed integrally with the first case 1 by molding.

  The first rotating member 7 incorporated in the first case 1 is formed in a ring shape. A click groove 7a is formed on the entire front surface side of the first rotating member 7, and when the rotating member 7 rotates, the click spring 8 engages and disengages with the click groove 7a so as to generate a click feeling. It has become. A plurality of (for example, three) sliders 6 attached to the back side of the first rotating member 7 are in sliding contact with the contact pattern 4, and a pulse is applied from the terminal 5 as the rotating member 7 rotates. A signal is output, and the contact pattern 4 and the slider 6 constitute a first rotation detecting means. On the inner peripheral edge of the first rotating member 7, engaging convex portions 7 b that project inward are formed at a plurality of locations (for example, five locations), and these engaging convex portions 7 b are engaged with the rotary drive body 14. It is an engaged portion that can be engaged and disengaged with the mating recess 14b.

  The rotary drive body 14 is formed in a cylindrical shape having a stepped portion on the rear side and slightly enlarged in diameter, and this rotary drive body 14 is slidably fitted on the guide wall 2a so as to be slidable. Through the opening 1a. A cylindrical small-diameter portion of the rotary drive member 14 projects forward from the opening 3a of the mounting plate 3, and a locking hole 14a for attaching an operation member (not shown) is formed in the small-diameter portion. A large number of engagement recesses 14b, which are first engagement portions that can be engaged with and disengaged from the engagement projections 7b of the first rotation member 7, are arranged in the circumferential direction on the outer peripheral edge of the large-diameter portion of the rotary drive body 14. It is lined up along. As shown in FIG. 12, the second engagement that can be engaged with and disengaged from the engagement tooth groove portion 12 b that is the engaged portion of the second rotating member 12 is provided on the back side (rear side) of the rotary driving body 14. A plurality of engaging projections 14c, which are parts, protrude rearward and are arranged in the circumferential direction, and slightly protrude rearward on the inner peripheral side of the engaging projections 14c and spring receiving members. An annular rib 14 d is formed as a sliding portion with respect to 15.

  The spring receiving member 15 is made of a metal plate such as stainless steel having excellent slidability, and as shown in FIGS. 14 and 15, protrudes outward from the ring-shaped inner cylindrical wall portion 15a and the front end of the inner cylindrical wall portion 15a. And a flat collar 15b. Further, rib-shaped holding projections 15 c are provided at a plurality of locations on the outer peripheral surface of the inner cylindrical wall portion 15 a, and the outer diameter of the inner cylindrical wall portion 15 a, which is the diameter of the outer peripheral surface, is determined by the compression coil spring 16. The diameter is substantially the same as the inner diameter. Strictly speaking, the inner diameter of the compression coil spring 16 is equal to the outer peripheral surface of the inner cylindrical wall portion 15a as a base from which the holding projection 15c is projected, that is, the outer peripheral surface of the inner cylindrical wall portion 15a in a state where the holding projection 15c is removed. Is larger than the outer diameter of the imaginary circle, and is smaller than the diameter of a virtual circle connecting the outer surfaces of the plurality of holding projections 15c. The spring receiving member 15 is fixed to the front end portion by pressing the inner cylindrical wall portion 15a against the reaction force of the holding projection 15c on the inner peripheral side of the front end portion of the compression coil spring 16. Since the rear end portion of the compression coil spring 16 is fixed to the partition wall 12a of the second rotating member 12, the flange portion 15b of the spring receiving member 15 is urged by the compression coil spring 16 to rotate the driving body 14. It is always in elastic contact with the annular rib 14d. Therefore, as shown in FIG. 3, the large-diameter portion (stepped portion) of the rotary drive body 14 is held at a position (first operation position) sandwiched between the spring receiving member 15 and the mounting plate 3 when not operated. At this time, the engaging concave portion 14 b is engaged with the engaging convex portion 7 b of the first rotating member 7. Further, when the rotary drive body 14 in the first operation position is pressed against the compression coil spring 16 in the axial direction, as shown in FIG. It can move to the position (second operation position) where it engages with the engaging tooth groove 12b of the second rotating member 12.

  A cylindrical guide wall 2a penetrating each opening 1a, 3a is formed at the center of the second case 2 so as to protrude forward, and the rotational movement of the rotary drive body 14 is guided by the guide wall 2a. Forward and backward movement (reciprocation along the axial direction) is performed. An annular wall 2b is formed on the outer peripheral edge of the second case 2, and the bosses 2c that are inserted into the engaging holes 3e of the leg pieces 3c of the mounting plate 3 at a plurality of locations on the outer peripheral surface of the annular wall 2b. Is protruding. A pair of stopper portions 2d are formed on the inner bottom portion of the second case 2, and an allowable rotation amount of the rotating member 12 is brought into contact with the stopper portion 2d by contacting the regulating piece 12c of the second rotating member 12. Is regulated. In addition, a pair of spring receiving projections 2 e are formed on the inner bottom portion of the second case 2. As shown in FIG. 21A, both ends of the pair of arms extending to the radial direction side of the torsion coil spring 13 are locked to the spring receiving projections 2e when not operated, but the second rotation As the member 12 rotates, the torsion coil spring 13 elastically expands, and as shown in FIG. 21 (b), one end portion (arm portion) of the torsion coil spring 13 is detached from one spring receiving projection 2e. It is like that. Note that a retaining protrusion 2f is provided on the inner peripheral surface of the guide wall 2a to prevent the operation member (not shown) from falling off. The contact pattern 9 (see FIG. 20), which is the conductive pattern for the rotary switch exposed at the inner bottom of the second case 2, and the terminal 10 led out from the contact pattern 9 are made of the same metal plate. These are formed integrally with the second case 2 by insert molding.

  The second rotating member 12 is incorporated in a space between the guide wall 2 a and the annular wall 2 b of the second case 2. The second rotating member 12 is formed in a substantially disc shape in which a partition wall 12a, a pair of restricting pieces 12c, a driving piece 12d, and the like are erected. The partition wall 12a is erected in an annular shape concentric with the guide wall 2a, and the front end portion of the partition wall 12a has a saw-tooth appearance over the entire circumference, and the engagement of the rotary drive body 14 with the saw-tooth portion. An engagement tooth groove 12b that can be engaged with and disengaged from the protrusion 14c is formed. Further, on the outer peripheral surface on the front end side of the partition wall 12a, a projecting portion 12f that holds the winding portion of the torsion coil spring 13 is disposed in a radial direction at a position facing the drive piece 12d with the rotation center (rotation axis) therebetween. It protrudes outward. A torsion coil spring 13 is incorporated on the radially outer side of the partition wall 12a of the second rotating member 12, and a rear end portion of the compression coil spring 16 is fixed on the radially inner side of the partition wall 12a. As shown in FIG. 21 (a), both ends of the pair of arm portions of the torsion coil spring 13 are locked to the spring receiving projections 2e of the second case 2, and the driving pieces 12d of the second rotating member 12 are connected. Since the engagement is possible, as shown in FIG. 21B, the torsion coil spring 13 is elastically extended as the rotating member 12 rotates. Also, rib-shaped holding projections 12e are provided at a plurality of locations on the inner peripheral surface of the partition wall 12a of the second rotating member 12, and the inner diameter of the partition wall 12a, which is the diameter of the inner peripheral surface, is a compression coil. The outer diameter of the spring 16 is substantially the same. Strictly speaking, the outer diameter of the compression coil spring 16 is the inner peripheral surface of the partition wall 12a as a base part from which the holding projection 12e protrudes, that is, the inner peripheral surface of the partition wall 12a in a state where the holding projection 12e is removed. The diameter is smaller than the inner diameter and larger than the diameter of a virtual circle connecting the inner surfaces of the plurality of holding projections 12e. The rear end of the compression coil spring 16 is fixed to the second rotating member 12 by pressing the outer peripheral side of the rear end of the compression coil spring 16 into the partition wall 12a against the reaction force of the holding projection 12e. ing. A plurality of (for example, two) sliders 11 attached to the back side of the second rotating member 12 are in sliding contact with the contact pattern 9, and when the rotating member 12 rotates a predetermined amount, an ON signal is sent from the terminal 10. Since it is output, the contact pattern 9 and the slider 11 constitute a second rotation detecting means.

  The rotary operation type electrical component configured as described above can be assembled in the following procedure. That is, first, after the second rotating member 12 is assembled in the space between the guide wall 2a and the annular wall 2b of the second case 2, the torsion arranged on the radially outer side of the partition wall 12a of the rotating member 12 Both end portions of the pair of arm portions of the coil spring 13 are engaged with the spring receiving projections 2 e of the second case 2. At this time, both ends of the pair of arm portions of the torsion coil spring 13 are locked to a hook-shaped (L-shaped) drive piece 12 d provided on the second rotating member 12 and the torsion coil spring. 13 winding portions are held by a protruding portion 12f formed on the outer periphery of the partition wall 12a. Accordingly, the torsion coil spring 13 is prevented from being detached by the protruding portion 12f and the pair of drive pieces 12d and is disposed at a predetermined position. Next, the spring receiving member 15 is press-fitted and fixed to the front end portion of the compression coil spring 16, and the rear end portion of the compression coil spring 16 extrapolated to the guide wall 2a is connected to the partition wall 12a of the second rotating member 12. Press fit radially inside to fix. Then, the switch-side unit is assembled by mounting the rotary drive body 14 extrapolated on the guide wall 2 a on the compression coil spring 16 via the spring receiving member 15. On the other hand, after the first rotating member 7 and the click spring 8 are sequentially assembled in the first case 1, the mounting plate 3 is laminated so as to cover the first case 1, and the engaging holes 3d of the leg pieces 3c are stacked. The encoder side unit with the mounting plate 3 attached to a predetermined position of the first case 1 is assembled by fitting the boss 1b into the first case 1. Then, the guide wall 2a is inserted into the openings 1a and 3a, the first case 1 is positioned and mounted on the annular wall 2b of the second case 2, and the engaging holes of the leg pieces 3c of the mounting plate 3 are mounted. The boss 2c of the second case 2 is fitted into 3e, and the tip end portions of the plurality of leg pieces 3c are caulked to the back surface of the second case 2, thereby stacking the encoder side unit on the switch side unit. A rotary operation type electric component can be obtained.

  Next, the operation of this rotary operation type electric component will be described. As shown in FIG. 3, the rotary drive body 14 is held at the first operation position when not being operated, and the engagement recess 14 b (first engagement portion) of the rotary drive body 14 is provided on the first rotary member 7. The engaging projection 7b is engaged. Therefore, when the user rotates the rotary drive body 14 in this state, the first rotary member 7 rotates integrally and the contact position of the slider 6 with respect to the contact pattern 4 changes. The pulse signal of the rotary encoder corresponding to the rotation operation is output from the terminal 5. In addition, when the rotational drive body 14 is rotationally operated in this state (first operation position), the spring receiving member 15 does not rotate, and the rotational drive body 14 (with respect to the flange portion 15b of the spring receiving member 15). The annular rib 14d) slides.

  As shown in FIG. 4, when the user presses the rotary drive body 14 in the first operation position against the compression coil spring 16 in the axial direction and moves it to the second operation position, the rotation is performed. The engagement between the driving body 14 and the first rotating member 7 is released, but the engaging protrusion 14c (second engaging portion) of the rotating driving body 14 is not in the second rotating member 12 at the second operation position. Engages with the engaging tooth groove portion 12b (the engaged portion). Therefore, when the rotary drive body 14 is rotated against the torsion coil spring 13 in this pressed state (that is, when the rotary drive body 14 is pushed around), the second rotary member 12 rotates integrally and the contact pattern. Since the contact position of the slider 11 with respect to 9 changes, an ON signal of the rotary switch corresponding to the rotational operation of the rotary drive 14 is output from the terminal 10. However, when the rotary drive body 14 is located at a predetermined position between the first operation position and the second operation position against the compression coil spring 16, the rotary drive body 14 has the first and first rotation positions as shown in FIG. Since the two rotating members 7 and 12 are not engaged with each other, there is no possibility of causing a malfunction that the first and second rotating members 7 and 12 rotate together.

  When the second rotary member 12 is driven by the rotary drive body 14 disposed at the second operation position and rotates in the clockwise direction of FIG. 21A, for example, one drive piece 12d is rotated by the torsion coil spring 13. Since one end portion (one arm portion) is driven, one end portion of the torsion coil spring 13 is detached from the one spring receiving projection 2e and elastically extended as shown in FIG. 21 (b). At this time, the other end of the torsion coil spring 13 remains engaged with the other spring receiving projection 2e, and the other drive piece 12d is detached from the other end of the torsion coil spring 13. Further, when the operating force on the rotary drive body 14 is removed in this state, the torsion coil spring 13 is elastically restored and pushes back one drive piece 12d, so that the second rotary member 12 is in the initial position shown in FIG. While automatically returning to the initial state in which both end portions of the torsion coil spring 13 are locked to the spring receiving projections 2e and the drive pieces 12d, the compression coil spring 16 is elastically returned to the first operation of the rotary drive body 14. In order to push back to the position, the rotary driving body 14 disengages from the second rotating member 12 and engages with the first rotating member 7 again. When the second rotating member 12 is rotated counterclockwise by being driven by the rotary driving body 14 disposed at the second operation position, the other driving piece 12d is connected to the other end of the torsion coil spring 13. The other end is detached from the other spring receiving projection 2e, but the basic operation is the same as described above.

  As described above, the rotary operation type electrical component according to the present embodiment includes two types of rotary drive bodies 14 that are reciprocally movable in the direction of the rotation axis (the protruding direction of the guide wall 2a): a first operation position and a second operation position. Since the rotation operation position can be selectively arranged and independent rotation detection can be performed at each operation position, the user can attach the operation member attached (or integrally formed) to the rotation driver 14. Two types of rotation operations can be performed continuously without switching. Further, if the operating force is removed after rotating the rotary drive body 14 at the second operating position, the rotary drive body 14 is pushed back to the neutral position in the rotational direction by the elastic force of the torsion coil spring 13, and the compression coil spring 16 Since the rotary drive body 14 is pushed back from the second operation position to the first operation position by the elastic force of the rotation operation type electric component, the operability is excellent.

  Further, the compression coil spring 16 incorporated in the rotary operation type electric component according to the present embodiment is fixed to the spring receiving member 15 and the second rotating member 12 at both ends, and the spring receiving member. 15 is slidably elastically contacted with the rotary drive body 14, so that when the rotary drive body 14 rotates integrally with the first rotary member 7 at the first operation position, the compression coil spring 16 and the spring receiving member 15 are rotated. Does not rotate, and when the rotary driving body 14 rotates integrally with the second rotating member 12 at the second operation position, the compression coil spring 16 and the spring receiving member 15 also rotate integrally. Therefore, there is no possibility that the compression coil spring 16 slides with other members during the rotation operation, and the scraping by the compression coil spring 16 can be effectively prevented. In addition, it is not necessary to perform complicated terminal processing on the compression coil spring 16, and only the sliding surface of the spring receiving member 15 is required to apply the lubricant, which improves productivity and reduces manufacturing costs. Cheap. When the rotary drive body 14 rotates at the first operation position, the annular rib 14d slides against the flat flange portion 15b of the spring receiving member 15, so that good slidability is maintained over a long period. Cheap.

  In this rotary operation type electric component, a plurality of holding projections 15 c are provided on the outer peripheral surface of the inner cylindrical wall portion 15 a of the spring receiving member 15, and the inner cylindrical wall portion 15 a is press-fitted into the front end portion of the compression coil spring 16. Therefore, the spring receiving member 15 can be easily and reliably attached to the compression coil spring 16. Further, since the inner cylindrical wall portion 15a of the spring receiving member 15 is interposed between the front end portion of the compression coil spring 16 and the guide wall 2a, the front end portion is moved when the rotary drive body 14 moves in the axial direction. There is no risk of interference with the guide wall 2a. Furthermore, a plurality of holding projections 12e are also provided on the inner peripheral surface of the partition wall 12a of the second rotating member 12, and the rear end portion of the compression coil spring 16 is press-fitted into the partition wall 12a which is an outer cylindrical wall portion. Since they can be fixed, the compression coil spring 16 can be easily and reliably attached to the second rotating member 12.

  Further, in the rotary operation type electrical component according to the present embodiment example, the engagement concave portion 14b which is a first engagement portion for causing the rotation drive body 14 to be engaged with and disengaged from the first rotation member 7, and the second Since the engaging protrusions 14c, which are the second engaging portions for engaging with and disengaging from the rotating member 12, are provided dispersed in the front-rear direction along the axial direction, the engaging protrusions 14c are provided on the outer peripheral surface of the rotary driving body 14. Compared to a configuration in which the gear-shaped portion and the like are engaged with and disengaged from the first and second rotating members 7 and 12, it is easy to suppress an increase in diameter of both the rotating members 7 and 12. Moreover, the engaging tooth groove portion 12b, which is the engaged portion of the second rotating member 12 that engages with and disengages from the engaging protrusion 14c of the rotary driving body 14, is formed at the front end portion of the partition wall 12a, and this partition wall 12a. Since the holding projection 12e for crimping the rear end portion of the compression coil spring 16 is also formed in the, the partition wall 12a can be used effectively and it is easy to achieve compactness.

  The first engaging portion, the second engaging portion, and the engaged portion that engages with and disengages from the first and second engaging portions are not limited to those of the above-described embodiment. Absent. For example, the first engaging portion that engages and disengages with the first rotating member 7 may be configured by a convex portion, and the engaged portion that engages and disengages with the first engaging portion may be configured by a concave portion. Alternatively, the second engaging portion may be a concave portion, and the engaged portion that engages with and disengages from the second engaging portion that includes the concave portion may be a convex portion. That is, it is preferable that the engaging portion and the engaged portion are engaged with each other in a concave-convex manner because they can be easily engaged and disengaged.

  Further, in the rotary operation type electrical component according to the present embodiment example, since the rotary drive body 14 is extrapolated to the cylindrical guide wall 2a, the first and second rotary members 7, 12 and the contact pattern 4, 9, the compression coil spring 16, the spring receiving member 15, the torsion coil spring 13, and the like can all be disposed in a space radially outside the guide wall 2a. As a result, not only is it easy to place another part such as a push switch in the radially inner space (hollow part) of the guide wall 2a, but it is easy to use the hollow part as a light guide path. It is easy to secure an illumination area on the operation member.

  In the above-described embodiment, the case where both end portions of the compression coil spring 16 are fixed to the spring receiving member 15 and the second rotating member 12 by press fitting has been described, but other simple fixing methods may be employed. Is possible. Further, when the second rotating member 12 does not need to be self-returned, a configuration in which the torsion coil spring 13 is omitted may be employed. Further, instead of pushing the rotational drive body 14 arranged at the first operation position in the axial direction in the non-operation state to place it in the second operation position, the rotational drive body 14 is pulled in the axial direction and arranged in the second operation position. It is also possible to adopt a configuration in which

  In the above embodiment, an encoder or a switch that slides the slider with respect to the contact pattern made of the conductive pattern is used as the rotation detection unit. However, the configuration of the rotation detection unit can be selected as appropriate. For example, you may employ | adopt the variable resistor which operate | moves with rotation of the rotational drive body 14, the encoder of a light detection system or a magnetic detection system, etc.

1 is an external perspective view of a rotary operation type electrical component according to an embodiment of the present invention. It is a disassembled perspective view of this rotation operation type electric component. It is sectional drawing which shows the state which has the rotation drive body of this rotation operation type electrical component in a 1st operation position. It is sectional drawing which shows the state which this rotational drive body exists in a 2nd operation position. It is sectional drawing which shows the state which this rotary drive body exists in the middle of the 1st operation position and the 2nd operation position. It is sectional drawing which shows the state which this rotary drive body exists in a 1st operation position with a cut surface different from FIG. It is a front view of this rotation operation type electric component. It is a rear view of the 1st rotation member with which this rotation operation type electric component is equipped. It is a front view of the 1st case with which this rotary operation type electric component is equipped. It is the perspective view which looked at the rotational drive body with which this rotation operation type electric component is provided from diagonally forward. It is a front view of this rotary drive body. It is the perspective view which looked at this rotary drive body from diagonally backward. It is a rear view of this rotary drive body. It is the perspective view which looked at the spring receiving member with which this rotation operation type electric component is provided from diagonally forward. It is the perspective view which looked at this spring receiving member from diagonally back. It is the perspective view which looked at the 2nd rotation member with which this rotation operation type electric component is provided from diagonally forward. It is a front view of this 2nd rotation member. It is the perspective view which looked at this 2nd rotation member from diagonally backward. It is a rear view of this 2nd rotation member. It is a front view of the 2nd case with which this rotation operation type electric part is equipped. It is explanatory drawing which shows the self return mechanism of this 2nd rotation member.

Explanation of symbols

1 First case (housing)
2 Second case (housing)
2a Guide wall 3 Mounting plate 4.9 Contact pattern (conductive pattern)
6, 11 Slider 7 First rotating member 7b Engaging projection 8 Click spring 12 Second rotating member 12a Partition wall (outer cylinder wall)
12b Engaging tooth gap (engaged part)
12e Holding projection 13 Torsion coil spring 14 Rotating drive 14b Engaging recess (first engaging part)
14c engagement protrusion (second engagement portion)
14d annular rib 15 spring receiving member 15a inner cylinder wall part 15c holding projection 16 compression coil spring

Claims (5)

A housing, a rotary drive supported by the housing and reciprocally movable between the first operation position and the second operation position along the axial direction; and spaced apart in the axial direction within the housing. A first rotation member and a second rotation member, each of which can be engaged with and disengaged from the rotary drive body, a first rotation detection means for detecting the rotation of the first rotation member, and the second rotation member. A second rotation detecting means for detecting rotation of the rotating member; and an elastic biasing member that is interposed between the rotary driving body and the second rotating member toward the first operating position. And when the rotary drive body is disposed at the first operating position, the first rotary member engages with the rotary drive body and can rotate integrally, and the rotary drive The body is in the second operating position against the coil spring. A rotary electric component to the second rotary member is rotatable integrally engaged with the rotary drive member when being location,
A spring receiving member is fixed to one end portion of the coil spring, the spring receiving member is elastically contacted with the rotary drive body, and the other end portion of the coil spring is fixed to the second rotating member, A rotary operation type electric device characterized in that when the rotary drive body is rotated without being engaged with the second rotary member, the rotary drive body slides with respect to the spring receiving member. parts.   2. The spring receiving member according to claim 1, wherein the spring receiving member has an inner cylindrical wall portion having holding projections formed at a plurality of locations on the outer peripheral surface, and the inner cylindrical wall portion is press-fitted into the inner peripheral side of one end portion of the coil spring. By rotating the coil spring, one end of the coil spring is fixed to the spring receiving member.   3. The second rotating member according to claim 1, wherein the second rotating member has an outer cylindrical wall portion in which holding projections are formed at a plurality of locations on the inner peripheral surface, and the other end portion of the coil spring is formed on the outer cylindrical wall portion. A rotary operation type electric component, wherein the other end of the coil spring is fixed to the second rotating member by press-fitting the outer peripheral side of the coil.   4. The first engaging portion for engaging and disengaging the first rotating member and the second engaging portion for engaging and disengaging the second rotating member according to claim 3. And an engaged portion that engages and disengages with the second engaging portion is provided on the standing end surface of the outer cylindrical wall portion.   5. The device according to claim 1, wherein the housing includes a cylindrical guide wall that guides the rotation drive body in a circumferential direction and an axial direction, and the rotation drive body and the first The rotary operation type electric component characterized in that both the second rotation member and the spring receiving member are formed in a hollow shape and are extrapolated to the guide wall.

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