EP2743953B1 - Switch device - Google Patents
Switch device Download PDFInfo
- Publication number
- EP2743953B1 EP2743953B1 EP13190843.6A EP13190843A EP2743953B1 EP 2743953 B1 EP2743953 B1 EP 2743953B1 EP 13190843 A EP13190843 A EP 13190843A EP 2743953 B1 EP2743953 B1 EP 2743953B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- knob
- cam
- shaft
- switch element
- switch
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- 239000000758 substrate Substances 0.000 description 18
- 238000010586 diagram Methods 0.000 description 12
- 238000005192 partition Methods 0.000 description 12
- 230000002093 peripheral effect Effects 0.000 description 7
- 230000007246 mechanism Effects 0.000 description 6
- 230000004323 axial length Effects 0.000 description 1
- 230000012447 hatching Effects 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 230000002787 reinforcement Effects 0.000 description 1
- 230000000717 retained effect Effects 0.000 description 1
Images
Classifications
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H23/00—Tumbler or rocker switches, i.e. switches characterised by being operated by rocking an operating member in the form of a rocker button
- H01H23/003—Tumbler or rocker switches, i.e. switches characterised by being operated by rocking an operating member in the form of a rocker button with more than one electrically distinguishable condition in one or both positions
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H23/00—Tumbler or rocker switches, i.e. switches characterised by being operated by rocking an operating member in the form of a rocker button
- H01H23/02—Details
- H01H23/12—Movable parts; Contacts mounted thereon
- H01H23/16—Driving mechanisms
- H01H23/168—Driving mechanisms using cams
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H23/00—Tumbler or rocker switches, i.e. switches characterised by being operated by rocking an operating member in the form of a rocker button
- H01H23/28—Tumbler or rocker switches, i.e. switches characterised by being operated by rocking an operating member in the form of a rocker button with three operating positions
- H01H23/30—Tumbler or rocker switches, i.e. switches characterised by being operated by rocking an operating member in the form of a rocker button with three operating positions with stable centre positions and one or both end positions unstable
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H21/00—Switches operated by an operating part in the form of a pivotable member acted upon directly by a solid body, e.g. by a hand
- H01H21/02—Details
- H01H21/18—Movable parts; Contacts mounted thereon
- H01H21/22—Operating parts, e.g. handle
- H01H2021/225—Operating parts, e.g. handle with push-pull operation, e.g. which can be pivoted in both directions by pushing or pulling on the same extremity of the operating member
Definitions
- the present invention relates to a switch device that is configured to rotate a knob around a rotary shaft of the knob for switching on a switch element.
- Japanese Patent Laid-Open Publication No. 2006-315468 discloses a parking brake device that is configured such that when a push type button is operated, an actuator is driven to switch on a parking brake.
- the parking brake device disclosed in Japanese Patent Laid-Open Publication No. 2006-315468 is not configured in such a manner as to switch on the parking brake by pulling a lever as in the case of the conventional brake device. Therefore there are some cases where, for people who are used to an operation in the conventional parking brake device, the operation at the time of switching on the parking brake in the parking brake device disclosed in Japanese Patent Laid-Open Publication No. 2006-315468 causes a strange feeling.
- a parking brake device in which a knob that is rotatable around one shaft is operated instead of the push type button, thereby causing the parking brake to switch on.
- Figs. 8A, 8B and 8C are diagrams explaining the configuration of a switch device 100 in a parking brake device that is constructed to employ a knob 101 rotatable around one shaft for causing the parking brake to switch on.
- Fig. 8A is a diagram showing a cutaway cross section of the switch device 100 in a direction perpendicular to a rotary shaft X of the knob 101
- Fig. 8B is a diagram showing a state where one switch element 105 of switch elements 105 and 106 is switched on by a rotational operation of the knob 101
- Fig. 8c is a diagram explaining an operation amount of the knob 101 in case of a switch device 100' in which the rotary shaft X of the knob 101 is provided to be closer to a base portion 101b of the knob 101 at the opposite side to an operation portion 101a thereof.
- the switch device 100 is provided with the knob 101 that is supported by a cover 102 to be able to rotate around the rotary shaft X of the knob 101.
- a side of the operation portion 101a of the knob 101 is operated in a pulling-up direction (direction of an arrow A in Fig. 8A ) from a reference position shown in Fig. 8A
- a moving block 103 that is provided in a side of base portion 101b of the knob 101 rotates downward to a side of a base plate 107, thus causing the switch element 105 to switch on (refer to Fig. 8B ).
- a moving block 104 that is provided in the side of the base portion 101a of the knob 101 rotates downward to the side of the base plate 107, thus causing a switch element 106 to switch on.
- a control device drives an actuator (not shown) to switch on the parking brake, and in a case where the switch element 106 is switched on, the parking brake is switched off.
- the rotary shaft X of the knob 101 is positioned in a substantially central portion of the knob 101 in the longitudinal direction (right-left direction in Fig. 8A ), and the operation portion 101a at one side and the base portion 101b at the other side that are positioned at both sides on a basis of the rotary shaft X are provided in a positional relation of being symmetrical around the rotary shaft X. Therefore even if the side of the base portion 101b of the knob 101 is operated in a pushing-down direction (refer to an arrow C in Fig. 8B ), the side of the operation portion 101a of the knob 101 rotates in the pulling-up direction (refer to an arrow A in the figure) to switch on the switch element 105, so that the parking brake is switched on.
- an operation amount (refer to a code ⁇ in the figure) in a case of switching on the switch element 105 by operating the side of the operation portion 101a of the knob 101 in the pulling-up direction is larger than an operation amount (refer to a code P in the figure) in a case of switching on the switch element 106 by operating the side of the operation portion 101a of the knob 101 in the pushing-down direction.
- EP 2 492 940 describes a switch device using a rockable operating body which interacts with a cam portion, the cam portion operating switches on operation of the rockable body.
- the axes of rotation of the rockable body and the cam portion are vertically aligned.
- a preferred embodiment of the present invention may provide a switch device in which an operation of a knob required for switching on a switch element does not differ depending on an operation direction of the knob.
- a switch device is as defined in claim 1.
- a rotational angle of the cam from the reference position at the time of switching on the first switch element is equal to that of the cam from the reference position at the time of switching on the second switch element
- a rotational angle of the knob at the time of rotating the cam by the operation element also becomes the same in both of a case of switching on the first switch element and of a case of switching on the second switch element. Therefore, even if the rotary shaft of the knob is set to the one side of the knob in the longitudinal direction, in any of a case of switching on the first switch element and of a case of switching on the second switch element, the rotational angle of the knob becomes the same. Accordingly, the operation amount of the knob can be controlled not to differ depending on the operation direction of the knob.
- Fig. 1 is an exploded perspective view of a switch device 1 according to an embodiment in the present invention.
- the switch device 1 is provided with a polar board (or printed circuit board) 2, a cover 3, and a knob 5.
- cam 9 (9A or 9B) supported by the cover 3 is rotated to switch on one of switch elements 23 and 24 provided in a side of the polar board 2 by one of the cams 9A and 9B.
- a side of the knob 5 is indicated as upward, and a side of the polar board 2 is indicated as downward for descriptive purposes.
- the polar board 2 is provided with a rectangular base portion 21 in a plan view, and a rectangular print substrate 22 is provided on a top face of the base portion 21 in a side of the cover in a plan view.
- Push type switch elements 23 and 24 are provided on a top face of the print substrate 22 in the side of the cover 3 respectively in positions closer to one side in the longitudinal direction of the print substrate 22, and the switch elements 23 and 24 are provided to be spaced from each other in the width direction of the print substrate 22.
- the switch elements 23 and 24 each are formed in a rectangular shape in a plan view, and are respectively provided with operated portions 23a and 24a that project upward in a side of the cover 3 at each side of the longitudinal direction.
- the switch elements 23 and 24 are provided with the operated portions 23a and 24a that are positioned to be the most separated from each other in the longitudinal direction of the print substrate 22, and when the operated portion 23a or 24a is pushed down to a side of the print substrate 22, the switch element 23 or 24 corresponding to the pushed operated portion 23a or 24a is switched on.
- One-end sides of a plurality of terminals 26 that project upward from the polar board 2 are connected to the print substrate 22 in a position closer to the other side in the longitudinal direction to project upward from the polar board 2, and these terminals 26 are connected to the switch elements 23 and 24, and the like through unillustrated wires (or conductive paths) provided on the print substrate 22.
- These terminals 26 are embedded in the polar board 2 by insert molding, and the other-end sides of the terminals 26 are positioned within a connector portion 25 projecting downward from the base portion 21.
- a plurality of locking portions 27 and engagement portions 28 are provided on an outer periphery of the base portion 21.
- the locking portions 27 and the engagement portions 28 respectively are, at the time of incorporating the cover 3 in the polar board 2, engaged to engagement holes 32 and engagement concave portions 33 provided in a side of the cover 3, thus preventing the cover 3 from dropping down from the polar board 2 or positioning the cover 3 to the polar board 2.
- Figs. 2A, 2B and 2C are diagrams for explaining the cover 3, wherein Fig. 2A is a plan view showing the cover 3 as viewed from above in a side of the knob 5, Fig. 2B is an enlarged perspective view showing the periphery of a support portion 4 in the cover 3, and Fig. 2C is an enlarged plan view showing the periphery of the support portion 4 in the cover 3. It should be noted that in Fig. 2C , for easy understanding of the shape of the support portion 4, wall portions 41, 42, 43, 44, 45, 46 that constitute the support portion 4, and partition walls 47 and 48 are illustrated in hatching lines.
- Fig. 3 is a cross section showing the cover 3, taken along line A-A in Fig.
- FIGs. 4A and 4B are diagrams for explaining a connecting portion 7, wherein Fig. 4A is a perspective view showing the connecting portion 7 as viewed from downward in a side of the cover 3, and Fig. 4B is a plan view showing the connecting portion 7 as viewed from downward in a side of the cover 3.
- Fig. 5 is a cross section taken in line A-A in Fig. 3
- Fig. 6 is a cross section taken in line B-B in Fig. 3 .
- the cover 3 has a peripheral wall portion 31 that is fitted on an outer periphery of the base portion 21 in the polar board 2, and mounting portions 34 and 35 for mounting the switch device 1 to an opponent member are provided in one side and the other side of the cover 3 in the longitudinal direction to project from the peripheral wall portion 31.
- Mounting holes 34a, 34b and 35a are, as shown in Fig. 2A , provided to penetrate through the mounting portions 34 and 35 in the thickness direction for insert of fixing bolts and projections for positioning the opponent member.
- the support portion 4 that rotatably supports the knob 5 is formed inside the peripheral wall portion 31 to project upward closer to a side of the knob 5 than the peripheral wall portion 31, and the support portion 4 is provided in a position closer to the mounting portion 34 in the cover 3.
- the support portion 4 is provided with the wall portions 41 and 42 that extend in the width direction of the cover 3, and the wall portions 43, 44, 45 and 46 that connect the wall portions 41 and 42 with each other.
- the wall portions 43, 44, 45 and 46 are provided in parallel to each other to be spaced by an equal interval in the width direction of the cover 3.
- bearing portions 431, 441, 451 and 461 are provided in the respective central parts of the wall portions 43, 44, 45 and 46 in the longitudinal direction, and respectively are provided with slits 433, 443, 453 and 463 at both sides thereof.
- the bearing portions 431, 441, 451 and 461 are provided to project upward closer to a side of the knob 5 than the wall portions 43, 44, 45 and 46, and the bearing portions 431, 441, 451 and 461 respectively are provided with through holes 432, 442, 452 and 462 for insert of shaft portions 72c, 72c, 74c and 74c in a side of the connecting portion 7 to be described later.
- the through holes 432, 442, 452 and 462 are provided to penetrate through the bearing portions 431, 441, 451 and 461 in the thickness direction, and are positioned on a rotary shaft X 1 of the knob 5 (refer to Fig. 3 ).
- the partition wall 47 is provided between the wall portion 43 and the wall portion 45 in the width direction of the cover 3, and the partition wall 48 is provided between the wall portion 44 and the wall portion 46 in the width direction of the cover 3, and the partition walls 47 and 48 are respectively lower in height than the wall portions 43, 44, 45 and 46.
- the partition walls 47 and 48 extend in parallel to the wall portions 43, 44, 45 and 46, and both ends thereof in the longitudinal direction are connected respectively to the wall portions 41 and 42.
- a space S1 is provided between the partition wall 47 and the wall portion 45, and a space S1 is provided between the partition wall 48 and the wall portion 46, and the spaces S1 and S1 respectively accommodate click mechanisms to be described later.
- a space S2 is provided between the partition wall 47 and the wall portion 43, and a space S2 is provided between the partition wall 48 and the wall portion 44, and the spaces S2 and S2 each accommodate a cam 9 (9A and 9B) to be described later.
- a spring accommodating portion 401 is opened to a central part in the longitudinal direction of the cover 3 in each of the spaces S1 and S1. As shown in Fig. 6 , the spring accommodating portion 401 has a bottomed cylindrical shape, and is formed to project from a bottom wall portion 402 of the space S1 to the downside toward the polar board 2.
- the spring accommodating portion 401 has a length L shorter than an axial length of a spring Sp, and a top end side of the spring Sp that is accommodated in the spring accommodating portion 401 projects above closer to the knob 5 than the bottom wall portion 402 formed in an arc shape in a plan view.
- guide pieces 454 and 474 are provided on the respective opposing faces of the wall portion 45 and the partition wall 47 that define the space S1 in such a manner as to surround an opening of the spring accommodating portions 401.
- guide pieces 464 and 484 are provided on the respective opposing faces of the wall portion 46 and the partition wall 48 that define the space S1 in such a manner as to surround an opening of the spring accommodating portions 401.
- the guide pieces 454, 464, 474 and 484 are linearly provided in parallel to a straight line Ln (refer to Fig.
- the switch device 1 is configured such that the click mechanism gives a click feeling to an operator at the time of rotating the knob 5 around the rotary shaft X1. Further, when an operation force acting on the knob 5 (an operation portion 61a) is lost, the ball B is pressed in the depth side of the click groove 742a (upper side in Fig. 6 ) by the urging force of the spring Sp to return the knob 5 back to the reference position shown in Fig. 6 .
- a rectangular opening 403a is formed to penetrate through the bottom wall portion 403 in the thickness direction to be in a position closer to the wall portion 41 in the longitudinal direction of the cover 3 in a plan view.
- Columnar shaft portions 404 and 404 are positioned in each of the openings 403a and 403a at a substantially central part in the longitudinal direction, and the shaft portions 404 and 404 are arranged to oppose to each other in each of the openings 403a and 403a to be spaced therebetween.
- the shaft portions 404 and 404 extend along a shaft line (rotary shaft X2 of the cam 9) in parallel to the rotary shaft X1 of the knob 5 from the lower part of the wall portions 43 and 44, and the partition walls 47 and 48 in a side of the polar board 2, and the cam 9 (9A and 9B) to be described later is rotatably supported by the shaft portions 404 and 404.
- cam 9 (9A and 9B).
- the cam 9B for switching on the switch element 23 and the cam 9A for switching on the switch element 24 are prepared.
- the cam 9A and the cam 9B are formed in the same shape, the cam 9A will be explained in the following explanation, and the other cam 9B will be explained as needed.
- each of the cams is indicated simply as a cam 9.
- the cam 9A includes a connecting portion 91 having an insert hole 91a and an operated portion 92 formed in a substantial fan shape in a side view, and the connecting portion 91 projects downside in a side of the polar board 2 from the center of the operated portion 92 in the width direction.
- the cam 9A and 9B is rotatably supported by the shaft portion 404 in a side of the cover 3 that is inserted in the insert hole 91a in in a direction where the operated portion 92 is positioned upward in a side of the knob 5 (refer to Fig. 5 and Fig. 7 ).
- a lower face of the operated portion 92 in a side of the print substrate 22 is configured with pressing portions 92a and 92b for pressing the operated portions 23a and 24a of the switch elements 23 and 24.
- the pressing portions 92a and 92b are positioned to be symmetrical around a straight line Lo that passes through the rotary shaft X2 of the cam 9A and is perpendicular to the print substrate 22 in a state where the cam 9A is arranged in a reference position shown in Fig. 5 .
- the cam 9A is provided in a state where the pressing portion 92b of one side makes contact with the operated portion 24a of the switch element 24, and the cam 9B is provided in a state where the pressing portion 92a of the other side makes contact with the operated portion 23a of the switch element 23 (refer to Fig. 5 and Fig. 7 ).
- the operated portion 92 is provided with an engagement groove 93 to which an operation portion 733 (engagement portion 733a) extending from the knob 5 is engaged, and the engagement groove 93 extends linearly in a range to the vicinity of the connecting portion 91 from the arc-shaped outer periphery of the operated portion 92 along a straight line Lm passing through the rotary shaft X2 of the cam 9A.
- Both sides of the engagement groove 93 on the outer periphery of the operated portion 92 are cut away for easy engagement of the engagement portion 733a to the engagement groove 93, and an opening width of the engagement groove 93 becomes wider toward the outer periphery of the operated portion 92.
- the engagement portion 733a rotates around the rotary shaft X1 in association with an operation of the knob 5, and the cam 9 (9A and 9B) rotatable around the rotary shaft X2 is made to rotate in one direction determined corresponding to an operation direction of the knob 5 by the engagement portion 733a rotating around the rotary shaft X1.
- the knob 5 that is rotatably supported by the support portion 4 of the cover 3 includes a head portion 6 one side of which is formed as an operation portion 61a in the longitudinal direction, and the connecting portion 7 that is mounted to a lower face of the head portion 6 and causes the knob 5 to be rotatably supported by the support portion 4.
- the head portion 6 has a peripheral wall portion 62 extending downward in a side of the cover 3 from the peripheral edge of a top wall portion 61, and in each side of the head portion 6 in the width direction are formed engagement holes 62a for engagement of engagement projections 72a of the connecting portion 7, and a bearing hole 62b for insert of a shaft portion 72b extending from both sides of the connecting portion 7.
- a plurality of the engagement holes 62a are provided to be spaced from each other in the longitudinal direction of the head portion 6, and the bearing hole 62b is provided in a side of the base portion 61b to which the rotary shaft X1 of the knob 5 is set.
- the connecting portion 7 has the rectangular base portion 71 in a plan view, and side wall portions 72 extending downward in a side of the polar board 2 are provided in both sides of the base portion 71 in the width direction.
- the side wall portion 72 is provided across an entire length of the base portion 71 in the longitudinal direction, and the engagement projections 72a and the shaft portion 72b are provided on an outer side face of the side wall portion 72.
- the connecting portion 7 is incorporated in the head portion 6 by engaging the engagement projection 72a and the shaft portion 72b to the engagement hole 62a and the bearing hole 62b in a side of the head portion 6. When the operation portion 61a is operated, the head portion 6 and the connecting portion 7 rotate integrally around the rotary shaft X1 of the knob 5.
- the columnar shaft portion 72c is provided on an inner side face of the side wall portion 72 in a position at the opposite side to the shaft portion 72b, and the shaft portion 72c projects inside along the rotary shaft X1 of the knob 5.
- the shaft portions 72c are, at the time the knob 5 is mounted to the support portion 4, inserted into through holes 432 and 442 of the shaft portions 431 and 441 of the support portion 4 (refer to Fig. 3 ).
- lever portions 721 extending downward in a side of the print substrate 22 outside of the side wall portion 72 are connected to a lower face of the side wall portion 72 in a side of the cover 3.
- the lever portion 721 is, at the time the knob 5 is incorporated in the cover 3, inserted between restriction walls 36 and 37 in a side of the cover 3 (refer to Fig. 1 ).
- the lever portion 721 rotates around the rotary shaft X1 in association with an operation of the knob 5, and when the lever portion 721 makes contact with one of the restriction walls 36 and 37 determined corresponding to an operation direction of the knob 5, at that point rotation of the knob 5 is restricted.
- the operation portion 73 (73A and 73B) and the support wall portion 74 (74A and 74B) are provided inside the side wall portion 72 to be spaced from each other in the width direction of the base portion 71.
- the operation portion 73 (73A and 73B) and the support wall portion 74 (74A and 74B) extend downward in a side of the cover 3 from the base portion 71.
- the operation portions 73 (73A and 73B) and the support wall portions 74 (74A and 74B) are arranged to be symmetrical around a center line M in the width direction of the base portion 71, and the operation portion 73A and the support portion 74A are positioned in a side of the cam 9A described above, and the operation portion 73B and the support portion 74B are positioned in a side of the cam 9B described above. It should be noted that in a case where the operation portions 73A and 73B, and the support wall portions 74A and 74B respectively are not particularly distinct, they respectively are simply indicated as the operation portion 73, and the support wall portion 74.
- the operation portion 73 (73A and 73B) and the support wall portion 74 (74A and 74B) are respectively provided in parallel to the side wall portion 72, longitudinal directional end portions of which are connected to each other by ribs 75 for reinforcement.
- the operation portions 73A and 73B, and the support wall portions 74A and 74B respectively have the same configurations, the configuration of the operation portion 73A as one thereof and the configuration of the support wall portion 74A as one thereof will be specifically explained.
- the operation portion 73A includes a rectangular base end portion 731 extending downward in a side of the cover 3 from the base portion 71, a semicircle portion 732 projecting downward in a side of the cover 3 from a substantially central part of the base end portion 731 in the longitudinal direction, and the operation portion 733 extending downward in a side of the print substrate 22 from the semicircle 732.
- the operation portion 733 extends along the straight line Lm connecting the rotary shaft X1 of the knob 5 and the rotary shaft X2 of the cam 9A, and the substantially circular engagement portion 733a that is provided at a front end thereof is engaged to the engagement groove 93 of the cam 9A on the straight line Lm.
- the support wall portion 74A includes a rectangular base end portion 741 extending downward in a side of the cover 3 from the base portion 71, and a rectangular portion 742 projecting downward in a side of the cover 3 from a substantially central part of the base end portion 741 in the longitudinal direction, and the click mechanism 742a that is recessed upward in a side of the knob 5 is formed in the longitudinal center at a lower end of the rectangular portion 742 in a side of the cover 3.
- the click mechanism 742a is positioned on the straight line Ln that passes through the rotary shaft X1 of the knob 5 and is perpendicular to the polar board 2 in a state where the knob 5 is arranged in the reference position, and the ball B urged by the spring Sp makes contact with the click groove 742a downward in a side of the polar board 2.
- the support wall portions 74A and 74B are provided to be symmetrical around the center line M in the width direction of the base portion 71, and the columnar shaft portions 74c are provided on the respective opposing faces of the support wall portions 74A and 74B.
- the shaft portion 74c as similar to the shaft portion 72c of the above-mentioned side wall portion 72, extends to a side of the center line M of the base portion 71 on the rotary shaft X1 of the knob 5.
- the shaft portions 74c of the support wall portions 74 (74A and 74B), and the shaft portions 72c of the side wall portions 72 are respectively inserted into through holes 452 and 462 of bearing portions 451 and 461 of the support portion 4 and into through holes 432 and 442 of bearing portions 431 and 441, thus rotatably supporting the knob 5 by the support portion 4 (refer to Fig. 3 ).
- FIGs. 7A and 7B are diagrams explaining the operation of the switch device 1, wherein Fig. 7A is a diagram explaining a case of operating the operation portion 61a of the knob 5 in a pulling-up direction (refer to an arrow A in the figure), and Fig. 7B is a diagram explaining a case of operating the operation portion 61a of the knob 5 in a pushing-down direction (refer to an arrow B in the figure). It should be noted that Fig. 7A is equivalent to A-A section in Fig. 3 , and Fig. 7B is equivalent to C-C section in Fig. 3 .
- the knob 5 In a state where the operation force does not exert on the knob 5, the knob 5 is arranged in the reference position shown in Fig. 6 by the click mechanism that causes the ball B to be engaged to the click groove 742a by the urging force of the spring Sp.
- the cam 9 (9A and 9B) to which the operation portion 73 (73A and 73B) extending from a side of the knob 5 is engaged, is arranged in the reference position shown in Fig. 5 .
- the pressing portions 92a and 92b of the cam 9 (9A and 9B) are arranged to be symmetrical around the straight line Lo that passes through the rotary shaft X2 of the cam 9 and extends in a direction perpendicular to the print substrate 22 (refer to Fig. 5 ) and the cam 9A places the pressing portion 92b on the operated portion 24a of the switch element 24, and the cam 9B places the pressing portion 92a on the operated portion 23a of the switch element 23 (refer also to Fig. 7 ).
- the cam 9 (9A and 9B) is configured such that the rotary shaft X2 is set to the center of the cam 9 (9A and 9B) in the width direction, and the pressing portions 92a and 92b of the cam 9 (9A and 9B) are symmetrical around the straight line Lo that passes through the rotary shaft X2 and is perpendicular to the print substrate 22. Therefore a rotational angle ⁇ of the cam 9 (9A and 9B) at the time of switching on the switch element 24 is the same as a rotational angle ⁇ of the cam 9 (9A and 9B) at the time of switching on the switch element 23 by arranging the switch elements 23 and 24 to be symmetrical around the straight line Lo.
- a rotational angle ⁇ 1 of the knob 5 at the time of rotating the cam 9 (9A and 9B) by the engagement portion 733a of the operation portion 73 (73A and 73B) is also the same in both of a case of switching on the switch element 24 and of a case of switching on the switch element 23.
- the switch elements 23 and 24 are not directly switched on by a member rotating integrally with the knob 5, and the cam 9 (9A and 9B) is rotated by the engagement portion 733a of the operation portion 73 (73A and 73B) rotating integrally with the knob 5, and the switch elements 23 and 24 are switched on by the rotated cam 9 (9A and 9B). Therefore the operation amount of the knob 5 can be the same in both of a case of switching on the switch element 24 and of a case of switching on the switch element 23.
- the switch device 1 comprises:
- the rotational angle ⁇ (refer to Fig. 7A ) of the cam 9 (9A and 9B) from the reference position at the time of switching on the switch element 24 is equal to the rotational angle ⁇ (refer to Fig. 7B ) of the cam 9 (9A and 9B) from the reference position at the time of switching on the switch element 23. Therefore the rotational angle ⁇ 1 (refer to Figs. 7A and 7B ) of the knob 5 at the time of rotating the cam 9 (9A and 9B) by the operation portion 73 (73A and 73B) also becomes the same in both of a case of switching on the switch element 24 and of a case of switching on the switch element 23.
- the rotational angle ⁇ 1 of the knob 5 around the rotary shaft X1 becomes the same. Accordingly, the operation amount of the knob 5 can be controlled not to differ depending on the operation direction of the knob 5.
- the switch elements 23 and 24 are not directly switched on by the operation portion 73 (73A and 73B) rotating around the rotary shaft X1 integrally with the knob 5, and the cam 9 (9A and 9B) is rotated by the engagement portion 733a of the operation portion 73 (73A and 73B), and the rotated cam 9 (9A and 9B) causes the switch elements 23 and 24 to switch on. Therefore even if the rotary shaft X1 of the knob 5 is set to the opposite side (side of the base portion 61b) to the operation portion 61a in the longitudinal direction of the knob 5, the stroke amount of each of the switch elements 24 and 23 does not become insufficient.
- the switch element 23 and the switch element 24, and the pressing portion 92b of the cam 9 (9A and 9B) at one side thereof and the pressing portion 92a thereof at the other side are respectively arranged to be symmetrical around the rotary shaft X2. Therefore the pushing-in amount (the stroke amount ) of the operated portion 24a or 23a of the switch element 24 or 23 by the pressing portion 92b or 92a of the cam 9 (9A and 9B) can be equal in any of a case of operating the knob 5 in the pulling-up direction (refer to an arrow A in Fig. 5 ) from the reference position shown in Fig. 5 and of a case of operating the knob 5 in the pushing-down direction (refer to an arrow B in the figure).
- the knob 5 is configured such that the operation portion 61a that is operated at the time of rotating the knob 5 is provided in one side of the knob 5 in the longitudinal direction, and the rotary shaft X1 of the knob 5 is set closer to the base portion 61b of the knob 5 at the opposite side to the operation portion 61a thereof in the longitudinal direction.
- the rotary shaft X2 of the cam 9 (9A and 9B) is configured to be set in parallel to the rotary shaft X1 of the knob 5, and in a position that is offset to a side of the operation portion 61a from the rotary shaft X2 in the longitudinal direction of the knob 5.
- the engagement portion 733a of the operation 73 is, as viewed in an axial direction of the rotary shaft X1 of the knob 5, engaged to the engagement groove 93 of the cam 9 (9A and 9B) on the straight line Lm connecting the rotary shaft X1 of the knob 5 and the rotary shaft X2 of the cam 9 (9A and 9B).
- the rotational angle ⁇ 1 of the knob 5 around the rotary shaft X1 and the rotational angle ⁇ of the cam 9 (9A and 9B) around the rotary shaft X2 respectively can certainly be made to the same.
- the cam 9 is configured with the cam 9A of switching on the switch element 24 and the cam 9B of switching on the switch element 23, and the cam 9A and the cam 9B are provided to be spaced in an axial direction of the rotary shaft X2 in common to the cam 9A and the cam 9B.
- the operation portion 73 in a side of the knob 5 is configured with the operation portion 73A for rotating the cam 9A and the operation portion 73B for rotating the cam 9B, wherein the operation portions 73A and 73B are provided to be spaced in an axial direction of the rotary shaft X1 of the knob 5.
- the cam 9A and the cam 9B, and the operation portion 73A and the operation portion 73B are respectively provided to be symmetrical around the center line M in the width direction of the knob 5.
- the space can be secured in the central part of the knob 5 in the width direction, for example, for guiding irradiation light from a light emitting element provided in the print substrate 22 to the top wall portion 61.
- the operation portions 73 (73A and 73B) and a plurality of the cams 9 (9A and 9B) are provided, since the operation force acting on them at the time of operating the knob 5 can be dispersed, an improvement on durability of the switch device 1 will be realized.
- the two switch elements may be arranged to be symmetrical around the rotary shaft X2 such that, when the cam 9 rotates in one direction around the rotary shaft X2, the switch element at one side is switched on by the pressing portion 92a at one side, and when the cam 9 rotates in the other direction, the switch element at the other side is switched on by the pressing portion 92b at the other side.
Landscapes
- Rotary Switch, Piano Key Switch, And Lever Switch (AREA)
- Mechanisms For Operating Contacts (AREA)
- Tumbler Switches (AREA)
Description
- The present invention relates to a switch device that is configured to rotate a knob around a rotary shaft of the knob for switching on a switch element.
- Japanese Patent Laid-Open Publication No.
2006-315468 - The parking brake device disclosed in Japanese Patent Laid-Open Publication No.
2006-315468 2006-315468 - Therefore, for making the operation feeling at the time of switching the parking brake closer to that in the conventional parking brake device, there is proposed a parking brake device in which a knob that is rotatable around one shaft is operated instead of the push type button, thereby causing the parking brake to switch on.
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Figs. 8A, 8B and 8C are diagrams explaining the configuration of aswitch device 100 in a parking brake device that is constructed to employ aknob 101 rotatable around one shaft for causing the parking brake to switch on.Fig. 8A is a diagram showing a cutaway cross section of theswitch device 100 in a direction perpendicular to a rotary shaft X of theknob 101,Fig. 8B is a diagram showing a state where oneswitch element 105 ofswitch elements knob 101, andFig. 8c is a diagram explaining an operation amount of theknob 101 in case of a switch device 100' in which the rotary shaft X of theknob 101 is provided to be closer to abase portion 101b of theknob 101 at the opposite side to anoperation portion 101a thereof. - As shown in
Fig. 8A , theswitch device 100 is provided with theknob 101 that is supported by acover 102 to be able to rotate around the rotary shaft X of theknob 101. When a side of theoperation portion 101a of theknob 101 is operated in a pulling-up direction (direction of an arrow A inFig. 8A ) from a reference position shown inFig. 8A , a movingblock 103 that is provided in a side ofbase portion 101b of theknob 101 rotates downward to a side of abase plate 107, thus causing theswitch element 105 to switch on (refer toFig. 8B ). In addition, when the side of theoperation portion 101a of theknob 101 is operated in a pushing-in direction (direction of an arrow B inFig. 8A ) from the reference position, a movingblock 104 that is provided in the side of thebase portion 101a of theknob 101 rotates downward to the side of thebase plate 107, thus causing aswitch element 106 to switch on. - In the parking brake device provided with this
switch device 100, in a case where theswitch element 105 is switched on, a control device (not shown) drives an actuator (not shown) to switch on the parking brake, and in a case where theswitch element 106 is switched on, the parking brake is switched off. - According to this
switch device 100, the rotary shaft X of theknob 101 is positioned in a substantially central portion of theknob 101 in the longitudinal direction (right-left direction inFig. 8A ), and theoperation portion 101a at one side and thebase portion 101b at the other side that are positioned at both sides on a basis of the rotary shaft X are provided in a positional relation of being symmetrical around the rotary shaft X. Therefore even if the side of thebase portion 101b of theknob 101 is operated in a pushing-down direction (refer to an arrow C inFig. 8B ), the side of theoperation portion 101a of theknob 101 rotates in the pulling-up direction (refer to an arrow A in the figure) to switch on theswitch element 105, so that the parking brake is switched on. - Here, for not involving the side of the
base portion 101b of theknob 101 in an on/off operation of the parking brake, there is considered the configuration in which the rotary shaft X of theknob 101 is provided in a position closer to thebase portion 101b to involve only the side of theoperation portion 101a of theknob 101 in the on/off operation of the parking brake (refer toFig. 8C ) . In this case, however, an operation amount (refer to a code α in the figure) in a case of switching on theswitch element 105 by operating the side of theoperation portion 101a of theknob 101 in the pulling-up direction is larger than an operation amount (refer to a code P in the figure) in a case of switching on theswitch element 106 by operating the side of theoperation portion 101a of theknob 101 in the pushing-down direction. - As a result, since the operation amount of the knob required for switching on the switch element differs depending on the operation direction of the
knob 101, there is a possibility that an operator has a strange feeling in the operation feeling of theknob 101. - Therefore, there is a demand for a switch device with the configuration that even if the rotary shaft of the knob is set to one side of the knob in the longitudinal direction, the operation amount of the knob required for switching on the switch element does not differ depending on the operation direction.
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EP 2 492 940 - Accordingly, the present invention is made in view of the above-described problems in the conventional switch device. A preferred embodiment of the present invention may provide a switch device in which an operation of a knob required for switching on a switch element does not differ depending on an operation direction of the knob.
- According to an aspect of the present invention, a switch device is as defined in
claim 1. - According to the aspect of the present invention, since a rotational angle of the cam from the reference position at the time of switching on the first switch element is equal to that of the cam from the reference position at the time of switching on the second switch element, a rotational angle of the knob at the time of rotating the cam by the operation element also becomes the same in both of a case of switching on the first switch element and of a case of switching on the second switch element. Therefore, even if the rotary shaft of the knob is set to the one side of the knob in the longitudinal direction, in any of a case of switching on the first switch element and of a case of switching on the second switch element, the rotational angle of the knob becomes the same. Accordingly, the operation amount of the knob can be controlled not to differ depending on the operation direction of the knob.
- Other objects, features, and advantages of the present invention will become more apparent from the following detailed description made with reference to the accompanying drawings, in which like parts are designated by like reference numbers and in which:
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Fig. 1 is an exploded perspective view showing a switch device according to an embodiment in the present invention; -
Figs. 2A, 2B and 2C are diagrams explaining a cover according to the embodiment; -
Fig. 3 is a cross section showing the switch device according to the embodiment; -
Figs. 4A and 4B are diagrams explaining a connecting portion according to the embodiment; -
Fig. 5 is a cross section showing the switch device according to the embodiment; -
Fig. 6 is a cross section showing the switch device according to the embodiment; -
Figs. 7A and 7B are diagrams each explaining an operation of the switch device according to the embodiment; andFigs. 8A, 8B and 8C are cross sections each showing a conventional switch device. - Hereinafter, a switch device according to an embodiment in the present invention will be explained with reference to the accompanying drawings.
Fig. 1 is an exploded perspective view of aswitch device 1 according to an embodiment in the present invention. Theswitch device 1 is provided with a polar board (or printed circuit board) 2, acover 3, and aknob 5. When theknob 5 is operated, cam 9 (9A or 9B) supported by thecover 3 is rotated to switch on one ofswitch elements polar board 2 by one of thecams Fig. 1 a side of theknob 5 is indicated as upward, and a side of thepolar board 2 is indicated as downward for descriptive purposes. - The
polar board 2 is provided with arectangular base portion 21 in a plan view, and arectangular print substrate 22 is provided on a top face of thebase portion 21 in a side of the cover in a plan view. Pushtype switch elements print substrate 22 in the side of thecover 3 respectively in positions closer to one side in the longitudinal direction of theprint substrate 22, and theswitch elements print substrate 22. Theswitch elements portions cover 3 at each side of the longitudinal direction. Theswitch elements portions print substrate 22, and when the operatedportion print substrate 22, theswitch element portion - One-end sides of a plurality of
terminals 26 that project upward from thepolar board 2 are connected to theprint substrate 22 in a position closer to the other side in the longitudinal direction to project upward from thepolar board 2, and theseterminals 26 are connected to theswitch elements print substrate 22. Theseterminals 26 are embedded in thepolar board 2 by insert molding, and the other-end sides of theterminals 26 are positioned within aconnector portion 25 projecting downward from thebase portion 21. - A plurality of locking portions 27 and
engagement portions 28 are provided on an outer periphery of thebase portion 21. The locking portions 27 and theengagement portions 28 respectively are, at the time of incorporating thecover 3 in thepolar board 2, engaged toengagement holes 32 and engagementconcave portions 33 provided in a side of thecover 3, thus preventing thecover 3 from dropping down from thepolar board 2 or positioning thecover 3 to thepolar board 2. -
Figs. 2A, 2B and 2C are diagrams for explaining thecover 3, whereinFig. 2A is a plan view showing thecover 3 as viewed from above in a side of theknob 5,Fig. 2B is an enlarged perspective view showing the periphery of asupport portion 4 in thecover 3, andFig. 2C is an enlarged plan view showing the periphery of thesupport portion 4 in thecover 3. It should be noted that inFig. 2C , for easy understanding of the shape of thesupport portion 4,wall portions support portion 4, andpartition walls Fig. 3 is a cross section showing thecover 3, taken along line A-A inFig. 2A together with a section of other components in theswitch device 1.Figs. 4A and 4B are diagrams for explaining a connectingportion 7, whereinFig. 4A is a perspective view showing the connectingportion 7 as viewed from downward in a side of thecover 3, andFig. 4B is a plan view showing the connectingportion 7 as viewed from downward in a side of thecover 3.Fig. 5 is a cross section taken in line A-A inFig. 3 , andFig. 6 is a cross section taken in line B-B inFig. 3 . - As shown in
Fig. 1 , thecover 3 has aperipheral wall portion 31 that is fitted on an outer periphery of thebase portion 21 in thepolar board 2, and mountingportions switch device 1 to an opponent member are provided in one side and the other side of thecover 3 in the longitudinal direction to project from theperipheral wall portion 31. Mountingholes Fig. 2A , provided to penetrate through the mountingportions - The
support portion 4 that rotatably supports theknob 5 is formed inside theperipheral wall portion 31 to project upward closer to a side of theknob 5 than theperipheral wall portion 31, and thesupport portion 4 is provided in a position closer to the mountingportion 34 in thecover 3. As shown inFigs. 2A and 2C , thesupport portion 4 is provided with thewall portions cover 3, and thewall portions wall portions wall portions cover 3. - The
wall portions cover 3 respectively connect both ends of thewall portions support portion 4 formed in a rectangular shape in a plan view are configured with thewall portions wall portions - As shown in
Fig. 2B , bearingportions wall portions slits portions knob 5 than thewall portions portions holes shaft portions portion 7 to be described later. The throughholes portions rotary shaft X 1 of the knob 5 (refer toFig. 3 ). - As shown in
Fig. 2C , thepartition wall 47 is provided between thewall portion 43 and thewall portion 45 in the width direction of thecover 3, and thepartition wall 48 is provided between thewall portion 44 and thewall portion 46 in the width direction of thecover 3, and thepartition walls wall portions partition walls wall portions wall portions - In a plan view, a space S1 is provided between the
partition wall 47 and thewall portion 45, and a space S1 is provided between thepartition wall 48 and thewall portion 46, and the spaces S1 and S1 respectively accommodate click mechanisms to be described later. A space S2 is provided between thepartition wall 47 and thewall portion 43, and a space S2 is provided between thepartition wall 48 and thewall portion 44, and the spaces S2 and S2 each accommodate a cam 9 (9A and 9B) to be described later. - In a plan view, a
spring accommodating portion 401 is opened to a central part in the longitudinal direction of thecover 3 in each of the spaces S1 and S1. As shown inFig. 6 , thespring accommodating portion 401 has a bottomed cylindrical shape, and is formed to project from abottom wall portion 402 of the space S1 to the downside toward thepolar board 2. - The spring
accommodating portion 401 has a length L shorter than an axial length of a spring Sp, and a top end side of the spring Sp that is accommodated in thespring accommodating portion 401 projects above closer to theknob 5 than thebottom wall portion 402 formed in an arc shape in a plan view. - As shown in
Fig. 2C , guidepieces wall portion 45 and thepartition wall 47 that define the space S1 in such a manner as to surround an opening of thespring accommodating portions 401. In addition, guidepieces wall portion 46 and thepartition wall 48 that define the space S1 in such a manner as to surround an opening of thespring accommodating portions 401. Theguide pieces Fig. 6 ) that passes through the rotary shaft X1 of theknob 5 and extends in a direction perpendicular to theprint substrate 22, and the top end sides of the springs Sp projecting within the spaces S1 are configured not to be shifted from the straight line Ln by theguide pieces - The spring Sp that is accommodated in the
spring accommodating portion 401 presses a ball B retained at its front end on aclick groove 742a on the straight line Ln, and in the present embodiment, the ball B urged by the spring Sp, and theclick groove 742a constitute the click mechanism. - The
switch device 1 is configured such that the click mechanism gives a click feeling to an operator at the time of rotating theknob 5 around the rotary shaft X1. Further, when an operation force acting on the knob 5 (anoperation portion 61a) is lost, the ball B is pressed in the depth side of theclick groove 742a (upper side inFig. 6 ) by the urging force of the spring Sp to return theknob 5 back to the reference position shown inFig. 6 . - As shown in
Fig. 2C andFig. 5 , in each of the spaces S2 and S2, arectangular opening 403a is formed to penetrate through thebottom wall portion 403 in the thickness direction to be in a position closer to thewall portion 41 in the longitudinal direction of thecover 3 in a plan view.Columnar shaft portions openings shaft portions openings shaft portions knob 5 from the lower part of thewall portions partition walls polar board 2, and the cam 9 (9A and 9B) to be described later is rotatably supported by theshaft portions - Hereinafter, an explanation will be made of the configuration of the cam 9 (9A and 9B). In the present embodiment, the
cam 9B for switching on theswitch element 23 and thecam 9A for switching on theswitch element 24 are prepared. Here, since thecam 9A and thecam 9B are formed in the same shape, thecam 9A will be explained in the following explanation, and theother cam 9B will be explained as needed. In addition, in a case where thecam 9A and thecam 9B are not particularly distinct, each of the cams is indicated simply as a cam 9. - As shown in
Fig. 5 , thecam 9A includes a connecting portion 91 having aninsert hole 91a and an operatedportion 92 formed in a substantial fan shape in a side view, and the connecting portion 91 projects downside in a side of thepolar board 2 from the center of the operatedportion 92 in the width direction. - The
cam shaft portion 404 in a side of thecover 3 that is inserted in theinsert hole 91a in in a direction where the operatedportion 92 is positioned upward in a side of the knob 5 (refer toFig. 5 andFig. 7 ). A lower face of the operatedportion 92 in a side of theprint substrate 22 is configured withpressing portions portions switch elements pressing portions cam 9A and is perpendicular to theprint substrate 22 in a state where thecam 9A is arranged in a reference position shown inFig. 5 . - In the present embodiment, the
cam 9A is provided in a state where thepressing portion 92b of one side makes contact with the operatedportion 24a of theswitch element 24, and thecam 9B is provided in a state where thepressing portion 92a of the other side makes contact with the operatedportion 23a of the switch element 23 (refer toFig. 5 andFig. 7 ). - As shown in
Fig. 5 , the operatedportion 92 is provided with anengagement groove 93 to which an operation portion 733 (engagement portion 733a) extending from theknob 5 is engaged, and theengagement groove 93 extends linearly in a range to the vicinity of the connecting portion 91 from the arc-shaped outer periphery of the operatedportion 92 along a straight line Lm passing through the rotary shaft X2 of thecam 9A. Both sides of theengagement groove 93 on the outer periphery of the operatedportion 92 are cut away for easy engagement of theengagement portion 733a to theengagement groove 93, and an opening width of theengagement groove 93 becomes wider toward the outer periphery of the operatedportion 92. - In the present embodiment, the
engagement portion 733a rotates around the rotary shaft X1 in association with an operation of theknob 5, and the cam 9 (9A and 9B) rotatable around the rotary shaft X2 is made to rotate in one direction determined corresponding to an operation direction of theknob 5 by theengagement portion 733a rotating around the rotary shaft X1. - As shown in
Fig. 1 , theknob 5 that is rotatably supported by thesupport portion 4 of thecover 3 includes ahead portion 6 one side of which is formed as anoperation portion 61a in the longitudinal direction, and the connectingportion 7 that is mounted to a lower face of thehead portion 6 and causes theknob 5 to be rotatably supported by thesupport portion 4. - The
head portion 6 has aperipheral wall portion 62 extending downward in a side of thecover 3 from the peripheral edge of atop wall portion 61, and in each side of thehead portion 6 in the width direction are formedengagement holes 62a for engagement ofengagement projections 72a of the connectingportion 7, and abearing hole 62b for insert of ashaft portion 72b extending from both sides of the connectingportion 7. A plurality of theengagement holes 62a are provided to be spaced from each other in the longitudinal direction of thehead portion 6, and thebearing hole 62b is provided in a side of thebase portion 61b to which the rotary shaft X1 of theknob 5 is set. - As shown in
Fig. 4 , the connectingportion 7 has therectangular base portion 71 in a plan view, andside wall portions 72 extending downward in a side of thepolar board 2 are provided in both sides of thebase portion 71 in the width direction. Theside wall portion 72 is provided across an entire length of thebase portion 71 in the longitudinal direction, and theengagement projections 72a and theshaft portion 72b are provided on an outer side face of theside wall portion 72. The connectingportion 7 is incorporated in thehead portion 6 by engaging theengagement projection 72a and theshaft portion 72b to theengagement hole 62a and thebearing hole 62b in a side of thehead portion 6. When theoperation portion 61a is operated, thehead portion 6 and the connectingportion 7 rotate integrally around the rotary shaft X1 of theknob 5. - The
columnar shaft portion 72c is provided on an inner side face of theside wall portion 72 in a position at the opposite side to theshaft portion 72b, and theshaft portion 72c projects inside along the rotary shaft X1 of theknob 5. Theshaft portions 72c are, at the time theknob 5 is mounted to thesupport portion 4, inserted into throughholes shaft portions Fig. 3 ). - As shown in
Fig. 3 ,lever portions 721 extending downward in a side of theprint substrate 22 outside of theside wall portion 72 are connected to a lower face of theside wall portion 72 in a side of thecover 3. Thelever portion 721 is, at the time theknob 5 is incorporated in thecover 3, inserted betweenrestriction walls Fig. 1 ). In the present embodiment, thelever portion 721 rotates around the rotary shaft X1 in association with an operation of theknob 5, and when thelever portion 721 makes contact with one of therestriction walls knob 5, at that point rotation of theknob 5 is restricted. - As shown in
Fig. 3 andFig. 4 , the operation portion 73 (73A and 73B) and the support wall portion 74 (74A and 74B) are provided inside theside wall portion 72 to be spaced from each other in the width direction of thebase portion 71. The operation portion 73 (73A and 73B) and the support wall portion 74 (74A and 74B) extend downward in a side of thecover 3 from thebase portion 71. The operation portions 73 (73A and 73B) and the support wall portions 74 (74A and 74B) are arranged to be symmetrical around a center line M in the width direction of thebase portion 71, and theoperation portion 73A and thesupport portion 74A are positioned in a side of thecam 9A described above, and theoperation portion 73B and thesupport portion 74B are positioned in a side of thecam 9B described above. It should be noted that in a case where theoperation portions support wall portions support wall portion 74. - As shown in
Fig. 4B , the operation portion 73 (73A and 73B) and the support wall portion 74 (74A and 74B) are respectively provided in parallel to theside wall portion 72, longitudinal directional end portions of which are connected to each other byribs 75 for reinforcement. Here, since theoperation portions support wall portions operation portion 73A as one thereof and the configuration of thesupport wall portion 74A as one thereof will be specifically explained. - As shown in
Fig. 5 , theoperation portion 73A includes a rectangularbase end portion 731 extending downward in a side of thecover 3 from thebase portion 71, a semicircle portion 732 projecting downward in a side of thecover 3 from a substantially central part of thebase end portion 731 in the longitudinal direction, and theoperation portion 733 extending downward in a side of theprint substrate 22 from the semicircle 732. Theoperation portion 733 extends along the straight line Lm connecting the rotary shaft X1 of theknob 5 and the rotary shaft X2 of thecam 9A, and the substantiallycircular engagement portion 733a that is provided at a front end thereof is engaged to theengagement groove 93 of thecam 9A on the straight line Lm. - As shown in
Fig. 6 , thesupport wall portion 74A includes a rectangularbase end portion 741 extending downward in a side of thecover 3 from thebase portion 71, and arectangular portion 742 projecting downward in a side of thecover 3 from a substantially central part of thebase end portion 741 in the longitudinal direction, and theclick mechanism 742a that is recessed upward in a side of theknob 5 is formed in the longitudinal center at a lower end of therectangular portion 742 in a side of thecover 3. Theclick mechanism 742a is positioned on the straight line Ln that passes through the rotary shaft X1 of theknob 5 and is perpendicular to thepolar board 2 in a state where theknob 5 is arranged in the reference position, and the ball B urged by the spring Sp makes contact with theclick groove 742a downward in a side of thepolar board 2. - As shown in
Figs. 4A and 4B , in thebase portion 71 thesupport wall portions base portion 71, and thecolumnar shaft portions 74c are provided on the respective opposing faces of thesupport wall portions shaft portion 74c, as similar to theshaft portion 72c of the above-mentionedside wall portion 72, extends to a side of the center line M of thebase portion 71 on the rotary shaft X1 of theknob 5. - In the present embodiment, the
shaft portions 74c of the support wall portions 74 (74A and 74B), and theshaft portions 72c of theside wall portions 72 are respectively inserted into throughholes portions support portion 4 and into throughholes portions knob 5 by the support portion 4 (refer toFig. 3 ). - Hereinafter, an operation of the
switch device 1 having the above configuration will be explained.Figs. 7A and 7B are diagrams explaining the operation of theswitch device 1, whereinFig. 7A is a diagram explaining a case of operating theoperation portion 61a of theknob 5 in a pulling-up direction (refer to an arrow A in the figure), andFig. 7B is a diagram explaining a case of operating theoperation portion 61a of theknob 5 in a pushing-down direction (refer to an arrow B in the figure). It should be noted thatFig. 7A is equivalent to A-A section inFig. 3 , andFig. 7B is equivalent to C-C section inFig. 3 . - In a state where the operation force does not exert on the
knob 5, theknob 5 is arranged in the reference position shown inFig. 6 by the click mechanism that causes the ball B to be engaged to theclick groove 742a by the urging force of the spring Sp. In this state, the cam 9 (9A and 9B), to which the operation portion 73 (73A and 73B) extending from a side of theknob 5 is engaged, is arranged in the reference position shown inFig. 5 . In this reference position, thepressing portions Fig. 5 ) and thecam 9A places thepressing portion 92b on the operatedportion 24a of theswitch element 24, and thecam 9B places thepressing portion 92a on the operatedportion 23a of the switch element 23 (refer also toFig. 7 ). - When a side of the
operation portion 61a of theknob 5 is operated in a pulling-up direction (direction of an arrow A inFig. 5 andFig. 7 ) from this state, theengagement portion 733a of the operation portion 73 (73A and 73B) extending from theknob 5 rotates in a clockwise direction in the figure in the circumferential direction around the rotary shaft X1 of theknob 5 to rotate the cam 9 (9A and 9B) in the counter clockwise direction in the figure in the circumferential direction around the rotary shaft X2. Thereby thepressing portion 92b of thecam 9A pushes down the operatedportion 24a of theswitch element 24 downward in a side of theprint substrate 22 to switch on theswitch element 24. - In addition, When the side of the
operation portion 61a of theknob 5 is operated in a pushing-in direction (direction of an arrow B inFig. 5 andFig. 7 ) from a state shown inFig. 5 , theengagement portion 733a of the operation portion 73 (73A and 73B) extending from theknob 5 rotates in a counter clockwise direction in the figure in the circumferential direction around the rotary shaft X1 of theknob 5 to rotate the cam 9 (9A and 9B) in the clockwise direction in the figure in the circumferential direction around the rotary shaft X2. Thereby thepressing portion 92a of the cam 9 pushes down the operatedportion 23a of theswitch element 23 downward in a side of theprint substrate 22 to switch on theswitch element 23. - Here, as shown in
Fig. 5 , the cam 9 (9A and 9B) is configured such that the rotary shaft X2 is set to the center of the cam 9 (9A and 9B) in the width direction, and thepressing portions print substrate 22. Therefore a rotational angle θ of the cam 9 (9A and 9B) at the time of switching on theswitch element 24 is the same as a rotational angle θ of the cam 9 (9A and 9B) at the time of switching on theswitch element 23 by arranging theswitch elements - Then, a rotational angle θ1 of the
knob 5 at the time of rotating the cam 9 (9A and 9B) by theengagement portion 733a of the operation portion 73 (73A and 73B) is also the same in both of a case of switching on theswitch element 24 and of a case of switching on theswitch element 23. Therefore even if the rotary shaft of theknob 5 is set to a position closer to the opposite side to theoperation portion 61a in the longitudinal direction of theknob 5, theswitch elements knob 5, and the cam 9 (9A and 9B) is rotated by theengagement portion 733a of the operation portion 73 (73A and 73B) rotating integrally with theknob 5, and theswitch elements knob 5 can be the same in both of a case of switching on theswitch element 24 and of a case of switching on theswitch element 23. - As described above, according to the present embodiment, the
switch device 1 comprises: - the
knob 5 that is supported to be rotatable around the rotary shaft X1 in thesupport portion 4 of thecover 3; - the cam 9 (9A and 9B) that is supported to be rotatable around the rotary shaft X2 in the
cover 3 and is rotated from the reference position (refer toFig. 5 ) in the predetermined direction determined corresponding to the rotational direction of theknob 5 by the operation portion 73 (73A and 73B) extending from theknob 5; - the
switch element 24 that, when the cam 9 (9A and 9B) is rotated in one direction around the rotary shaft X2, is switched on by thepressing portion 92b in one side of thecam 9A; and - the
switch element 23 that, when the cam 9 (9A and 9B) is rotated in the other direction around the rotary shaft X2, is switched on by thepressing portion 92a in the other side of thecam 9B, wherein - as viewed in the shaft direction of the rotary shaft X2 of the cam 9 (9A and 9B), the
switch element 23 and theswitch element 24, and thepressing portion 92b in the one side of the cam 9 (9A and 9B) and thepressing portion 92a in the other side are respectively arranged to be symmetrical around the rotary shaft X2. - According to this configuration, the rotational angle θ (refer to
Fig. 7A ) of the cam 9 (9A and 9B) from the reference position at the time of switching on theswitch element 24 is equal to the rotational angle θ (refer toFig. 7B ) of the cam 9 (9A and 9B) from the reference position at the time of switching on theswitch element 23. Therefore the rotational angle θ1 (refer toFigs. 7A and 7B ) of theknob 5 at the time of rotating the cam 9 (9A and 9B) by the operation portion 73 (73A and 73B) also becomes the same in both of a case of switching on theswitch element 24 and of a case of switching on theswitch element 23. Therefore, also when the rotary shaft X1 of theknob 5 is set to the one side of theknob 5 in the longitudinal direction (side of thebase portion 61b positioned at the opposite side to theoperation portion 61a), in any of a case of switching on theswitch element 24 and of a case of switching on theswitch element 23, the rotational angle θ1 of theknob 5 around the rotary shaft X1 becomes the same. Accordingly, the operation amount of theknob 5 can be controlled not to differ depending on the operation direction of theknob 5. - Particularly the
switch elements knob 5, and the cam 9 (9A and 9B) is rotated by theengagement portion 733a of the operation portion 73 (73A and 73B), and the rotated cam 9 (9A and 9B) causes theswitch elements knob 5 is set to the opposite side (side of thebase portion 61b) to theoperation portion 61a in the longitudinal direction of theknob 5, the stroke amount of each of theswitch elements - Further, as viewed in the shaft direction of the rotary shaft X2 of the cam 9 (9A and 9B), the
switch element 23 and theswitch element 24, and thepressing portion 92b of the cam 9 (9A and 9B) at one side thereof and thepressing portion 92a thereof at the other side are respectively arranged to be symmetrical around the rotary shaft X2. Therefore the pushing-in amount (the stroke amount ) of the operatedportion switch element pressing portion knob 5 in the pulling-up direction (refer to an arrow A inFig. 5 ) from the reference position shown inFig. 5 and of a case of operating theknob 5 in the pushing-down direction (refer to an arrow B in the figure). - The
knob 5 is configured such that theoperation portion 61a that is operated at the time of rotating theknob 5 is provided in one side of theknob 5 in the longitudinal direction, and the rotary shaft X1 of theknob 5 is set closer to thebase portion 61b of theknob 5 at the opposite side to theoperation portion 61a thereof in the longitudinal direction. - According to this configuration, in a case where the operation force is added to a position (side of the
base portion 61b) of theknob 5 away from theoperation portion 61a, it is possible to certainly prevent theknob 5 from rotating. Therefore when theknob 5 is operated in the pulling-up direction (refer to an arrow A inFig. 5 ) from the reference position shown inFig. 5 , in a case where an external device (for example, a brake device) to which theswitch device 1 is connected is switched on, it is possible to certainly prevent the external device from switching on without intention when the opposite side of theknob 5 to theoperation portion 61a is in error pushed or the like. - The rotary shaft X2 of the cam 9 (9A and 9B) is configured to be set in parallel to the rotary shaft X1 of the
knob 5, and in a position that is offset to a side of theoperation portion 61a from the rotary shaft X2 in the longitudinal direction of theknob 5. - According to this configuration, it is possible to secure the space for providing the cam 9 (9A and 9B) downward of the
knob 5 in a side of thepolar board 2 by using the longitudinal width of theknob 5. Therefore an increase in size of theswitch device 1 in the longitudinal direction of theknob 5 due to provision of the cam 9 (9A and 9B) can appropriately be prevented. - Here, the
engagement portion 733a of the operation 73 is, as viewed in an axial direction of the rotary shaft X1 of theknob 5, engaged to theengagement groove 93 of the cam 9 (9A and 9B) on the straight line Lm connecting the rotary shaft X1 of theknob 5 and the rotary shaft X2 of the cam 9 (9A and 9B). As a result, in any of a case of switching on theswitch element 24 and of a case of switching on theswitch element 23, the rotational angle θ1 of theknob 5 around the rotary shaft X1 and the rotational angle θ of the cam 9 (9A and 9B) around the rotary shaft X2 respectively can certainly be made to the same. - The cam 9 is configured with the
cam 9A of switching on theswitch element 24 and thecam 9B of switching on theswitch element 23, and thecam 9A and thecam 9B are provided to be spaced in an axial direction of the rotary shaft X2 in common to thecam 9A and thecam 9B. The operation portion 73 in a side of theknob 5 is configured with theoperation portion 73A for rotating thecam 9A and theoperation portion 73B for rotating thecam 9B, wherein theoperation portions knob 5. Thecam 9A and thecam 9B, and theoperation portion 73A and theoperation portion 73B are respectively provided to be symmetrical around the center line M in the width direction of theknob 5. - According to this configuration, the space can be secured in the central part of the
knob 5 in the width direction, for example, for guiding irradiation light from a light emitting element provided in theprint substrate 22 to thetop wall portion 61. Further, when a plurality of the operation portions 73 (73A and 73B) and a plurality of the cams 9 (9A and 9B) are provided, since the operation force acting on them at the time of operating theknob 5 can be dispersed, an improvement on durability of theswitch device 1 will be realized. - It should be noted that in the above embodiment, there is exemplified a case of operating the
switch elements different cams pressing portion 92a at one side, and when the cam 9 rotates in the other direction, the switch element at the other side is switched on by thepressing portion 92b at the other side.
Claims (2)
- A switch device (1) comprising:a knob (5) that is rotatable around a first shaft (X1);a cam (9A, B) that is rotatable around a second shaft (X2) from a reference position in a predetermined direction determined by a rotational direction of the knob (5) by engaging with an operation element (73A,B) extending from the knob (5);a first switch element (23) that, when the cam (9A,B) is rotated in one direction around the second shaft (X2), is switched on by a first pressing portion (92a) at one side of the cam (9A, B) engaging an actuation portion (23a) of the switch element (23); anda second switch element (24) that, when the cam is rotated in the other direction around the second shaft, is switched on by a second pressing portion (92b) at the other side of the cam engaging an actuation portion (24a) of the switch element (24) ;whereinas viewed in a shaft direction of the second shaft (X2) of the cam (9A,B):(a), the first and second switch elements (23, 24), and (b) the first and second pressing portions (92a,b) are respectively arranged to be symmetrical around the second shaft (X2);whereinthe knob (5) is provided with an operation portion (61a) , to which force is applied in use, said operation portion (61a) being at one side of the knob (5) in the longitudinal direction, the operation portion being operated to effect rotation of the knob (5), and the first shaft (X1) of the knob is set closer to the other side in the longitudinal direction, whereinan engagement portion (733a) of the operation element (73A,B) is, as viewed in an axial direction of the first shaft (X1) of the knob (5), engaged to an engagement groove (93) of the cam (9A,B) on a straight line (Lm) connecting the first shaft (X1) of the knob (5) and the second shaft (X2) of the cam (9A,B), and whereinthe second shaft (X2) is set in parallel to the first shaft (X1),characterized in that
the second shaft (X2) is set in a position offset to a side of the operation portion (61a) from the first shaft (X1) in the longitudinal direction of the knob (5). - A switch device according to claim 1, wherein
the cam includes a first cam (9B) for switching on the first switch element (23) and a second cam (9A) for switching on the second switch element (24), wherein the first cam (9B) and the second cam (9A) are spaced from each other in an axial direction of the second shaft (X2),
the operation element includes a first operation element (73B) for rotating the first cam (9B) and a second operation element (73A) for rotating the second cam (9A), wherein the first and second operation element (73A,B) are spaced from each other in an axial direction of the first shaft (X1), and
(a) the first and second cams (9A,B) and (b) the first and second operation elements (73A,B) are respectively provided to be symmetrical around a center line of the knob (5) in the width direction.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2012274502A JP6125820B2 (en) | 2012-12-17 | 2012-12-17 | switch |
Publications (2)
Publication Number | Publication Date |
---|---|
EP2743953A1 EP2743953A1 (en) | 2014-06-18 |
EP2743953B1 true EP2743953B1 (en) | 2017-08-16 |
Family
ID=49488495
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP13190843.6A Active EP2743953B1 (en) | 2012-12-17 | 2013-10-30 | Switch device |
Country Status (2)
Country | Link |
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EP (1) | EP2743953B1 (en) |
JP (1) | JP6125820B2 (en) |
Families Citing this family (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN104554205B (en) * | 2014-07-02 | 2017-07-21 | 苏州华昌机电有限公司 | Motor vehicle parking brake switch assembly |
CN107499295A (en) * | 2017-08-25 | 2017-12-22 | 奇瑞汽车股份有限公司 | Electric-controlled switch, electronic parking system and automobile |
JP2019102236A (en) | 2017-11-30 | 2019-06-24 | 株式会社ヴァレオジャパン | switch |
FR3075457B1 (en) * | 2017-12-19 | 2019-11-15 | Airbus Helicopters | MECHANISM FOR ELECTRICAL CONTROL AND AIRCRAFT |
DE102019110845A1 (en) * | 2019-04-26 | 2020-10-29 | Schneider Electric Industries Sas | Electrical installation device |
JP7263135B2 (en) * | 2019-06-11 | 2023-04-24 | アルプスアルパイン株式会社 | switch device |
Family Cites Families (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH0727037U (en) * | 1993-10-19 | 1995-05-19 | 株式会社ヒロセチェリープレシジョン | Switch device |
JP4583675B2 (en) * | 2001-08-30 | 2010-11-17 | ナイルス株式会社 | switch |
JP4066336B2 (en) * | 2002-10-29 | 2008-03-26 | オムロン株式会社 | Switch device |
JP2006315468A (en) | 2005-05-11 | 2006-11-24 | Nissan Motor Co Ltd | Electric parking brake system |
DE102007052655A1 (en) * | 2007-11-05 | 2009-05-07 | Trw Automotive Electronics & Components Gmbh | Switch, in particular power window switch |
IT1403418B1 (en) * | 2010-12-23 | 2013-10-17 | Bitron Spa | CONTROL SWITCH FOR A BRAKE, VEHICLE PARKING. |
JP5600858B2 (en) * | 2011-02-25 | 2014-10-08 | アルプス電気株式会社 | Switch device |
ITTO20110206A1 (en) * | 2011-03-08 | 2012-09-09 | Bitron Spa | MULTI-CONTACT MECHANICAL SWITCH. |
-
2012
- 2012-12-17 JP JP2012274502A patent/JP6125820B2/en active Active
-
2013
- 2013-10-30 EP EP13190843.6A patent/EP2743953B1/en active Active
Non-Patent Citations (1)
Title |
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None * |
Also Published As
Publication number | Publication date |
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JP6125820B2 (en) | 2017-05-10 |
EP2743953A1 (en) | 2014-06-18 |
JP2014120322A (en) | 2014-06-30 |
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