JP6666729B2 - Multi-directional switch device - Google Patents

Description

  The present invention relates to a multidirectional switch device having an operation shaft capable of being pushed, rotated, and tilted, and more particularly to a multidirectional switch device suitable as an input operation means of a power mirror device mounted on an automobile.

  In the multidirectional switch device disclosed in Patent Document 1, when the operating shaft is pushed in the axial direction, the first slider is pressed down integrally, and the first movable contact held by the first slider is moved to the side. In order to contact the first fixed contact provided on the wafer, a command signal for causing the left and right side mirrors to perform the falling operation or the erecting operation is output. When the operation shaft is rotated while the side mirror is in the upright state, the second slider rotates integrally, and the second movable contact held by the second slider is provided on a second surface of the circuit board. A mirror selection signal for selecting one of the left and right side mirrors in accordance with the rotation operation direction of the operation shaft to contact the contact point is output. When the operation axis is tilted while the side mirror is selected, the third slider driven by the operation axis slides linearly along the circuit board, and the third movable part held by the third slider is moved. Since the contact comes into contact with a third fixed contact provided on the other surface of the circuit board, a viewing angle adjustment signal for tilting the mirror surface of the selected side mirror in the tilt direction of the operation axis is output. .

JP 2001-291456 A

  The multidirectional switch device disclosed in Patent Literature 1 requires a return spring for the operation shaft at the time of the pushing operation and a return spring for the operation shaft at the time of the tilting operation, and has a problem that the number of parts is large.

  In view of the above-described problem, an object of the present invention is to provide a multidirectional switch device having an operation shaft capable of pushing operation, rotating operation, and tilting operation, with a single spring, and a return spring of the operation shaft at the time of pushing operation. An object of the present invention is to provide a multi-directional switch device which can also serve as a return spring of an operation shaft at the time of tilting operation and has a small number of components.

1. An operating shaft having a knob at an upper end capable of being pushed, rotated, and tilted, and a housing for supporting the operating shaft so as to be able to be pushed, rotated, and tilted, wherein the operating shaft is provided in the housing. A slider which is disposed immediately below the operating shaft and which is integrally pressed down when the operating shaft is pushed in; a slider which is disposed immediately below the slider and constantly urges the slider upward, and constantly operates the operating shaft via the slider. A multidirectional switch device comprising: a single spring biased upward; and a switch contact that electrically contacts and separates as the slider moves up and down.
In this multidirectional switch device, it is possible to use a single spring to both return the operating shaft at the time of the pushing operation and to return the operating shaft at the time of the tilting operation. A multidirectional switch device with a small number of components can be realized.
Further, it is not necessary to provide a through hole for penetrating the operation shaft in the slider, and the outer size of the slider can be reduced accordingly.
2. The multidirectional switch device according to item 2.1, further comprising: a position holding unit in the housing for alternately holding the operating shaft between a pushed position and a non-operated position every time the operating shaft is pushed. The position holding mechanism has a cam groove formed on one side of the slider, and an engagement pin having one end inserted into the cam groove, and the switch contact is formed on the other side of the slider. Multi-directional switch device.
In this multidirectional switch device, the position holding mechanism and the switch contact can be arranged close to each other by the slider, and the switching position of the switch contact can be stabilized as compared with the conventional multidirectional switch device.
3.1. The multidirectional switch device according to 3.1, wherein the slider has a conical recessed bearing surface, and the lower end of the operating shaft is slidably in contact with the bearing surface. .
In this multidirectional switch device, the operating shaft can be automatically returned to the neutral position by the slider during the tilting operation.

  According to the present invention, in a multidirectional switch device provided with an operation shaft capable of pushing operation, rotating operation and tilting operation, a single spring, a return spring of the operation shaft at the time of pushing operation and an operation shaft at the time of tilting operation And a multi-directional switch device with a small number of parts can be provided.

It is a perspective view of the multidirectional switch device concerning the embodiment of the present invention. It is a top view of the multidirectional switch device concerning the embodiment of the present invention. It is a top view showing the state where the operation axis of the multidirectional switch device concerning the embodiment of the present invention was rotated to the right position. FIG. 4 is a sectional view taken along line XX of FIG. 3. FIG. 4 is a sectional view taken along line YY of FIG. 3. 1 is an exploded perspective view of a multi-directional switch device according to an embodiment of the present invention. It is an exploded perspective view in the state where a multidirectional switch device concerning an embodiment of the present invention was turned upside down. FIG. 5 is a side view showing a cam groove formed on one side surface of the slider. It is operation | movement explanatory drawing of the state in which the operation axis | shaft of the multidirectional switch device which concerns on embodiment of this invention was pushed in. It is operation | movement explanatory drawing of the state in which the operation axis | shaft of the multidirectional switch device concerning embodiment of this invention was tilted.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings. A multi-directional switch device according to an embodiment of the present invention is used as an input means of a power mirror device mounted on an automobile. Hereinafter, the direction along the line XX in FIG. 3 will be described as the left-right direction, the direction along the line YY in FIG. 3 as the front-back direction, and the direction perpendicular to the paper surface of FIG.

  The multi-directional switch according to the present embodiment includes an operation shaft 2 having a knob 1 attached to an upper end thereof, which can be pushed, rotated, and tilted, and the operation shaft 2 can be pushed, rotated, and tilted. The housing 30 includes a supporting housing 30, a push-on / push-off type push switch incorporated in the housing 30, a rotation feeling generating mechanism, and a four-way tilt switch for front, rear, left and right.

  The housing 30 includes a body 33 integrally formed with the four internal connection terminals 31 and the nine external connection terminals 32 by insert molding, and a cover 34 over the body 33. Both the body 33 and the cover 34 are formed using an insulating resin material.

  The body 33 is formed in a box shape whose upper surface is open. The upper surface of the body 33 is provided with a rectangular four-way tilt switch receiving recess 33a, and the lower surface of the four-directional tilt switch receiving recess 33a is provided with a smaller square push switch receiving recess 33b. A spring seat 33c is provided on the bottom surface of 33b, and a guide pin 33d is provided upright on the spring seat 33c.

  A pin housing recess 33e is provided on the front side surface of the push switch housing recess 33b, and one end of each of the four internal connection terminals 31 is exposed on the rear side facing the pin housing recess 33e. Are four fixed contacts 31a.

  At the rear side of the push switch accommodating recess 33b, a connector fitting recess 33f opened in a rectangular shape on the bottom surface of the body 33 is provided. One end of each of the nine external connection terminals 32 is provided in the connector fitting recess 34f. Are protruded to form connector contacts 32a.

  A pair of slots 33g are provided on the left and right sides of the opening of the push switch housing recess 33b on the bottom surface of the four-way tilt switch housing recess 33a, and pass through the back side of the four-way tilt switch housing recess 33a. An inner cover locking claw 33h is provided on an outer surface (a lower outer surface of the body 33) of the push switch accommodating recess 33b. A cover engaging claw 33i is provided on the outer surface (upper outer surface of the body 33) of the four-way tilt switch accommodating recess 33a.

  The cover 34 is formed in a box shape with an open lower surface. A bearing tube 34b is provided at the center of the top wall portion 34a of the cover 34 so as to protrude from the inner and outer surfaces of the top wall portion 34a, and a concave spherical surface 34c is provided at a lower end portion of the bearing tube 34b.

  There are three positions on the inner surface of the top wall portion 34a on the circumference surrounding the bearing cylinder 34b (a neutral position, a left position rotated 45 degrees leftward from the neutral position, and a right position rotated 45 degrees rightward from the neutral position). (Position) 34d for generating a rotation feeling, and two rotor locking portions 34e for the left position and the right position.

  The lower end of the cover 34 is provided with a body locking hole 34f. The cover 34 is fixed to the body 33 by fitting the lower end thereof to the outside of the upper end of the body 33 and engaging the cover engaging claws 33i with the body engaging holes 34f. At this time, the guide pin 33d and the bearing cylinder 34b are arranged coaxially.

  The knob 1 is formed in a cap shape using an insulating resin material. The knob 1 has a disc-shaped top wall 1a for pushing operation, a cylindrical peripheral wall 1b for rotation and tilting operations, and a cylindrical boss projecting downward from the center of the back surface of the top wall 1a. The boss portion 1c is fixed to the upper end portion of the operation shaft 2 in a state where the boss portion 1c is fitted around the upper end of the operation shaft 2 and is prevented from rotating and coming off.

  The operating shaft 2 transmits the force applied to the knob 1 to each member accommodated in the housing 30 and selectively switches required switch contacts in accordance with the operating direction of the knob 1. It is formed using a resin material. The operating shaft 2 has a disk-shaped spherical shoulder 2b having a convex spherical surface 2a, four cylindrical ribs 2c protruding in a cross direction from a peripheral portion of the spherical shoulder 2b, and an upward direction from the center of the spherical shoulder 2b. A protruding cylindrical portion 2d, an octagonal column portion 2e protruding downward from the center of the spherical shoulder 2b, a locking piece 2f protruding from one side surface of the octagonal column portion 2e, and a downward direction from the lower end surface of the octagonal column portion 2e. A protruding conical lower end portion 2g is provided integrally, and a spherical shoulder 2b, a cylindrical portion 2d, an octagonal column portion 2e, and a lower end portion 2g are coaxially arranged. The tip of the lower end 2g is rounded and spherical.

  In the push switch receiving recess 33b of the body 33, a slider 3 disposed immediately below the operation shaft 2 and integrally pressed down when the operation shaft 2 is pushed in, and a slider 3 disposed immediately below the slider 3 And a coil spring 4 that constantly urges the operating shaft 2 upward through the slider 3 is accommodated, and the operating shaft 3 is pushed each time the operating shaft 2 is pushed. A heart-cam type position holding mechanism for alternately holding the push-in position shown in FIG. 9 and the non-operation position shown in FIGS. 4 and 5, and sliding for making electrical contact and separation as the slider 3 moves up and down. A contact switch contact is formed, and a push switch is configured immediately below the operation shaft 2.

  The slider 3 is formed in a quadrangular prism shape using an insulating resin material, and is accommodated in the push switch accommodating recess 33b in a state where movement in the front-rear and left-right directions is restricted and only vertical movement is allowed. A rectangular spring seat receiving recess 3a is provided on the lower surface of the slider 3, and a circular spring receiving recess 3b is provided on the top surface of the spring seat receiving recess 3a. A cylindrical portion 3c is provided on the upper surface of the slider 3, and an upper end surface of the cylindrical portion 3c is formed in a conical shape to form a bearing surface 3d.

  The operating shaft 2 has the cylindrical portion 2d facing the bearing cylinder 34b with the convex spherical surface 2a of the spherical shoulder 2b facing the concave spherical surface 34c of the bearing cylinder 34b and the lower end 2g facing the bearing surface 3d of the slider 3. The upper end of the cylindrical portion 2d is inserted and protrudes above the cover 34 from the upper end opening of the bearing cylinder 34b.

  The coil spring 4 is provided between the spring seat 33c and the top surface of the spring receiving recess 3b. When the operation shaft 2 is not operated, the coil spring 4 causes the bearing surface 3d of the slider 3 to move to the lower end 2g of the operation shaft 2. And the convex spherical surface 2a of the spherical shoulder 2b of the operating shaft 2 is elastically contacted with the concave spherical surface 34c of the bearing cylinder 34b, and a spherical joint is formed by the convex spherical surface 2a and the concave spherical surface 34c. Thus, the operation shaft 2 and the slider 3 are integrally held at the non-operation position shown in FIGS.

  The heart-shaped cam type position holding mechanism is provided with a heart-shaped cam groove 5 on the front side surface of the slider 3 facing the pin accommodating recess 33e, and the upper end of a metal U-shaped engagement pin 6 is formed in the cam groove 5. It is formed by supporting the lower end of the engaging pin 6 via the metal supporting plate 7 in the pin accommodating recess 33e so as to be inserted and contact at a right angle and move in accordance with the vertical movement of the slider 3. As shown in FIG. 8, the starting end 5a where the upper end of the engaging pin 6 is located when the operating shaft 2 is at the non-operating position shown in FIGS. 4 and 5, and the operating shaft 2 are pushed into the cam groove 5, as shown in FIG. In the process (push-on), the forward end 5b on which the upper end of the engaging pin 6 slides is engaged with the upper end of the engaging pin 6 when the operating shaft 2 is pushed to the pushing end, and the operating shaft 2 is shown in FIG. It has an engaging portion 5c for holding the operating shaft 2 at the pushing position and a return path 5d on which the engaging pin 6 slides in the process of pushing the operating shaft 2 again (push-off). Each time the pushing operation is performed, the guide is guided from the starting end 5a to the engaging portion 5c or from the engaging portion 5c to the starting end 5a. The inner cover 18 is fixed to the upper part of the push switch receiving recess 33b and the upper part of the pin receiving recess 33e by patching, and the height positions of the slider 3 and the engaging pin 6 are regulated.

  The switch contact of the sliding contact type includes a fixed contact 31a provided on the rear surface of the push switch accommodating recess 33b, and two movable contacts held in two vertical stages on the rear surface of the slider 3 facing the fixed contact 31a. It is formed of a contact 8 and two coil springs 9 held by the slider 3 and pressing the movable contact 8 toward the fixed contact 31a.

  By the way, a coil spring 10 for constantly urging the operation shaft 2 downward is provided between the top wall portion 34a of the cover 34 and the four cylindrical ribs 2c of the operation shaft 2, and the operation shaft 2 is pushed in. The operation shaft 2 is held in the pushed-in position shown in FIG. 9 by the position holding mechanism, and the operation is performed while the convex spherical surface 2a of the spherical shoulder 2b of the operation shaft 2 is separated from the concave spherical surface 34c of the bearing cylinder 34b downward. The coil spring 10 prevents the shaft 2 from rattling. The elastic force of the coil spring 10 is set smaller than the elastic force of the coil spring 4.

  The rotation feeling generating mechanism is such that the rotor 11 that rotates integrally with the operation shaft 2 inside the cover 34 holds the coil spring 12 and the ball 13, and when the rotor 11 rotates, the ball 13 pressed by the coil spring 12 Is repeated on the convex portion of the unevenness 34d and falls again into the concave portion to generate a feeling of rotation. The rotor 11 is formed in an annular shape using an insulating resin material. On the inner peripheral surface of the rotor 11, four locking grooves 11a are provided at 90 ° intervals along the axial direction of the operating shaft 2, and the four cylindrical grooves 2c of the operating shaft 2 are provided in the four locking grooves 11a. Are slidably fitted, so that the rotor 11 holds the operation shaft 2 in a pushable and tiltable manner, and rotates integrally with the operation shaft 2. The upper surface of the rotor 11 facing the top wall portion 34a of the cover 34 is provided with a cylindrical portion 11b for accommodating the coil spring 12 and the ball 13 and an arc groove 11c for inserting the rotor locking portion 34e.

  The four-way tilt switch is housed in a four-way tilt switch housing recess 33a of the body 33, and is driven by a rotation operation or a tilt operation of the operation shaft 2, and two movable contacts held by the slider 14. 15 and the coil spring 16 and are fixed to the upper end of the body 33 by thermal caulking so as to cover the open upper surface of the four-way tilt switch housing recess 33a of the body 33. And a wiring board 17 on which a required electric circuit including fixed contacts for adjusting the viewing angle of the left and right mirrors provided on one side is formed.

  The slider 14 slides in the swinging direction of the operating shaft 3 or rotates around the axis of the operating shaft 3 in conjunction with the swinging or rotating operation of the operating shaft 3. It is formed in a rectangular plate shape. A through hole 14a is formed in the center of the slider 14 so as to penetrate the octagonal column 2e of the operation shaft 2. Two movable contacts 15 and a coil spring 16 are held at both longitudinal ends of the upper surface of the slider 14, and the movable contact 15 is pressed by the coil spring 16 against the lower surface of the wiring board 7.

  At the center of the wiring board 17, a through hole 17a penetrating the octagonal column 2e of the operation shaft 2 is provided. The other ends of the four internal connection terminals 31 and the other ends of the nine external connection terminals 32 are connected to the wiring board 17 by soldering.

As is clear from the above, the multi-directional switch device according to the present embodiment is capable of pushing operation, rotating operation, and tilting operation, operating shaft 2 having knob 1 at the upper end portion, and capable of pushing operating shaft 2 and rotating. A slider 30 having a housing 30 that can be tilted and supported, wherein the slider 3 is disposed directly below the operation shaft 2 and is integrally depressed when the operation shaft 2 is pushed into the housing 30; A single coil spring 4 that constantly urges the slider 3 upward and always urges the operation shaft 2 upward through the slider 3, and a switch contact that electrically contacts and separates as the slider 3 moves up and down. Since the single coil spring 4 is provided, the single coil spring 4 can serve as both the return of the operating shaft 2 during the pushing operation and the return spring of the operating shaft 2 during the tilting operation. It is possible to realize a small multi-directional switching device having parts than the multidirectional switch device. That is, in a multi-directional switch device provided with an operating shaft 2 capable of pushing operation, rotating operation and tilting operation, a single coil spring 4 is used to return the operating shaft 2 at the time of pushing operation and the operating shaft 2 at the time of tilting operation. And a multi-directional switch device with a small number of parts can be provided.
Further, it is not necessary to provide a through hole for penetrating the operation shaft 2 in the slider 3, and the outer size of the slider 3 can be reduced accordingly.

  Further, the multidirectional switch device according to the present embodiment further includes a position in the housing 30 for alternately holding the operating shaft 2 between the pushed position and the non-operated position every time the operating shaft 2 is pushed. The position holding mechanism has a cam groove 5 formed on one side surface of the slider 3 and an engagement pin 6 having one end inserted into the cam groove 5. Formed on the other side, the position holding mechanism and the switch contacts 31a, 8 can be arranged close to each other by the slider 3, and the switching of the switch contacts 31a, 8 can be performed as compared with the conventional multidirectional switch device. The position can be stabilized.

  Further, in the multidirectional switch device according to the present embodiment, the slider 3 has the bearing surface 3d formed in a conical shape, and the lower end 2g of the operation shaft 2 is slidably in contact with the bearing surface 3d. Therefore, the operation shaft 2 can be automatically returned to the neutral position by the slider 3 during the tilting operation.

DESCRIPTION OF SYMBOLS 1 Knob 2 Operating shaft 2g Lower end 3 Slider 3d Bearing surface 4 Coil spring 5 Cam groove 6 Engagement pin 30 Housing

Claims (2)

An operating shaft having a knob at an upper end capable of being pushed, rotated, and tilted, and a housing for supporting the operating shaft so as to be able to be pushed, rotated, and tilted, wherein the operating shaft is provided in the housing. A slider which is disposed immediately below the operating shaft and which is integrally pressed down when the operating shaft is pushed in; a slider which is disposed immediately below the slider and constantly urges the slider upward, and constantly operates the operating shaft via the slider. A single spring that urges upward, and a switch contact that electrically contacts and separates as the slider moves up and down. The slider has a conical recessed bearing surface, and the bearing surface has A multidirectional switch device in which the lower end of the operation shaft is slidably in contact .   2. The multidirectional switch device according to claim 1, further comprising: a position in the housing for alternately holding the operating shaft between a pushed position and a non-operated position each time the operating shaft is pushed. The position holding mechanism has a cam groove formed on one side of the slider, and an engagement pin having one end inserted into the cam groove, and the switch contact is formed on the other side of the slider. Multi-directional switch device.

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