WO2022172474A1 - リミットスイッチ - Google Patents
リミットスイッチ Download PDFInfo
- Publication number
- WO2022172474A1 WO2022172474A1 PCT/JP2021/009907 JP2021009907W WO2022172474A1 WO 2022172474 A1 WO2022172474 A1 WO 2022172474A1 JP 2021009907 W JP2021009907 W JP 2021009907W WO 2022172474 A1 WO2022172474 A1 WO 2022172474A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- contact
- plunger
- contact portion
- cam
- notch
- Prior art date
Links
- 230000002093 peripheral effect Effects 0.000 description 13
- 230000005540 biological transmission Effects 0.000 description 3
- 238000012986 modification Methods 0.000 description 3
- 230000004048 modification Effects 0.000 description 3
- 230000004308 accommodation Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
Images
Classifications
-
- 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
- H01H21/24—Operating parts, e.g. handle biased to return to normal position upon removal of operating force
- H01H21/28—Operating parts, e.g. handle biased to return to normal position upon removal of operating force adapted for actuation at a limit or other predetermined position in the path of a body, the relative movement of switch and body being primarily for a purpose other than the actuation of the switch, e.g. door switch, limit switch, floor-levelling switch of a lift
-
- 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
- H01H21/24—Operating parts, e.g. handle biased to return to normal position upon removal of operating force
- H01H21/28—Operating parts, e.g. handle biased to return to normal position upon removal of operating force adapted for actuation at a limit or other predetermined position in the path of a body, the relative movement of switch and body being primarily for a purpose other than the actuation of the switch, e.g. door switch, limit switch, floor-levelling switch of a lift
- H01H2021/287—Operating parts, e.g. handle biased to return to normal position upon removal of operating force adapted for actuation at a limit or other predetermined position in the path of a body, the relative movement of switch and body being primarily for a purpose other than the actuation of the switch, e.g. door switch, limit switch, floor-levelling switch of a lift with adjustable head, e.g. the actuator head can have different positions in relation to the limit switch itself
Definitions
- the present disclosure relates to limit switches.
- Patent Document 1 discloses a limit switch provided with a housing in which a built-in switch is accommodated. This limit switch has a rotatable shaft and a built-in switch that can be turned on and off according to the rotation of the shaft. Configured for double-sided operation.
- An object of the present disclosure is to provide a limit switch whose operation mode can be set to either one-sided operation or two-sided operation.
- An example limit switch of the present disclosure includes: A switch body that can be switched on and off, and an operation unit connected to the switch body,
- the operation unit is a box-shaped housing; extending from the outside of the housing to the inside of the housing along the first direction, being rotatable forward from the return position to the first operating position about a rotation axis extending in the first direction, and from the return position to the return position; a shaft body supported by the housing in a state capable of reverse rotation toward a second operating position on the side opposite to the first operating position; a shaft portion having a cam portion that rotates forward and backward together with the shaft body; A biasing portion disposed inside the housing biases the cam portion in a second direction crossing the first direction and in a direction approaching the switch body to return the shaft body to the return position.
- the operation mode can be set from either one-sided operation in which the cam portion does not contact at the first operating position or two-sided operation in which the cam portion contacts not only at the first operating position but also at the second operating position.
- the cam portion a cam body with which the biasing portion contacts;
- a first projection configured to project and contact the plunger;
- a second projecting portion projecting from the other side of the cam body in the third direction in the radial direction and in a direction away from the cam body and configured to contact the plunger;
- a first notch provided at one end of the first projecting portion in the first direction and extending toward the rotating shaft from an end of the first projecting portion farther from the rotating shaft in the radial direction;
- a second notch provided at the other end of the second projection in the first direction and extending from the end of the second projection farther from the rotation shaft in the radial direction toward the rotation shaft;
- the plunger is a plunger body facing the cam portion in the second direction; a first contact portion protruding from the plunger
- the plunger In the second direction, the plunger is positioned such that the first contact portion faces the second notch and the first protrusion, and the second contact portion faces the first notch and the second protrusion.
- the operation mode In the arranged state, the operation mode is set to the double-sided operation, In the second direction, the third contact portion faces the first cutout and the second protrusion and the non-contact portion faces the second cutout and the first protrusion, or the third contact portion faces the second cutout and the first protrusion.
- the operating mode In a state in which the plunger is arranged such that the contact portion faces the second notch and the first projecting portion, and the non-contact portion faces the first notch and the second projecting portion, the operating mode is the Set to unilateral operation.
- the plunger includes the plunger main body, the first contact portion that can be accommodated in the first notch and can contact the first projecting portion at the first operating position, and the second notch. a second contact portion that is configured to be able to contact the second protrusion at the second operating position; and a second contact portion that can be accommodated in the first notch or the second notch and is capable of contacting the first protrusion at the first operating position or the second operating position. and a non-contact portion that does not come into contact with the first protrusion and the second protrusion.
- the first contact portion and the second contact portion are arranged so as to face each other in the facing direction, and the third contact portion and the non-contact portion are arranged so as to face each other in a direction different from the facing direction .
- FIG. 1 is a perspective view showing a limit switch according to one embodiment of the present disclosure
- FIG. FIG. 2 is a perspective view showing an operating portion of the limit switch of FIG. 1
- FIG. 3 is a plan view showing a cam portion and a plunger of the operating portion in FIG. 2
- FIG. 2 is a plan view of the limit switch of FIG. 1 when the mode of operation is set to one-sided operation
- FIG. 2 is a plan view of the limit switch of FIG. 1 when the operation mode is set to double-sided operation
- the switch body 2 has a substantially rectangular parallelepiped shape, and the operation part 3 is detachably connected to one surface thereof.
- the operating portion 3 includes a housing 10, a shaft portion 20 extending from the outside of the housing 10 to the inside of the housing 10, an urging portion 30 (see FIG. 3) and a plunger 40 (see FIG. 3) arranged inside the housing 10. ) and an operating lever 50 connected to the shaft portion 20 outside the housing 10 .
- the housing 10 has a hollow, substantially cubic housing body 11 connected to the switch body 2 and a peripheral wall portion 12 provided on the housing body 11 .
- the housing body 11 has a bearing 13 and a housing portion 14 provided therein. As shown in FIG. 3, the bearing 13 is arranged in a through hole 122, which will be described later, and supports the shaft portion 20 so as to be rotatable forward and backward.
- the accommodation portion 14 accommodates the biasing portion 30 and the plunger 40 .
- the peripheral wall portion 12 has a substantially cylindrical shape, and extends from the surface 111 of the housing body 11 adjacent to the surface connected to the switch body 2 in a direction intersecting this surface 111 (for example, the X direction in FIG. 3). ).
- the peripheral wall portion 12 has an opening 121 provided on a surface farther from the housing body 11 in the X direction, and a through hole 122 extending in the X direction inside the peripheral wall portion 12 and connecting the housing portion 14 and the opening 121 . is doing.
- the shaft portion 20 has a shaft body 21 and a cam portion 22 that is provided on the shaft body 21 located inside the housing 10 and rotates forward and backward together with the shaft body 21 .
- the shaft body 21 has, for example, a substantially cylindrical shape extending in a first direction (eg, X direction) as shown in FIG. supported by
- the end portion 212 of the shaft body 21 located inside the housing 10 is accommodated in the recess 15 provided in the inner wall of the housing 10 forming the accommodating portion 14 .
- the recessed portion 15 is arranged to face the through hole 122 in the first direction X, and is recessed from the accommodation portion 14 in the first direction X and in a direction away from the peripheral wall portion 12 .
- the rotation about the rotary shaft 211 from the return position P1 to the first operation position P2 is forward rotation, and the first operation is performed from the return position P1 to the return position P1.
- the rotation toward the second operating position P3 on the opposite side of the position P2 is defined as reverse rotation.
- the center line of the operating lever 50 at each position is indicated by a dotted line.
- the cam portion 22 has a cam body 221, a first projecting portion 222, a second projecting portion 223, a first notch 224 and a second notch 225, as shown in FIG.
- the cam body 221 is configured so that the urging portion 30 comes into contact with it.
- the cam body 221 has a substantially rectangular plate shape arranged so that the X direction is the longitudinal direction. It has a contact surface 226 extending along the XY plane.
- the biasing portion 30 contacts the contact surface 226 (see FIG. 3).
- FIG. 3 when the shaft main body 21 is positioned at the return position P1, most of the cam main body 221 is positioned in a second direction intersecting the first direction X (for example, the Z direction). It is arranged closer to the switch body 2 than.
- the first projecting portion 222 extends along the cam body in a third direction (for example, the Y direction) that intersects the first direction X and the second direction Z when viewed along the second direction Z. It protrudes from one side of 221 in a radial direction with respect to rotary shaft 211 (hereinafter simply referred to as a radial direction) and in a direction away from cam main body 221 so as to be able to contact plunger 40 .
- the first projecting portion 222 has a tapered shape, and extends from the cam body 221 toward the nearer end (left end in FIG. 5) of both ends of the plunger 40 in the third direction Y. ) along the radial direction.
- the second projecting portion 223 projects radially from the other side of the cam body 221 in the third direction Y and in a direction away from the cam body 221 so as to contact the plunger 40 .
- the second projecting portion 223 extends from the cam body 221 toward the closer one of the two ends of the plunger 40 in the third direction Y (the right end in FIG. 5). It protrudes radially.
- the first notch 224 is provided at one end of the first protrusion 222 in the first direction X, and extends from the end of the first protrusion 222 farther from the rotation shaft 211 in the radial direction to the rotation shaft 211 . extending towards.
- the first notch 224 is provided at the end of the first projecting portion 222 on the side of the peripheral wall portion 12 in the first direction X.
- the second notch 225 is provided at the other end in the first direction X and extends from the end of the second projecting portion 223 farther from the rotating shaft 211 in the radial direction toward the rotating shaft 211 .
- the biasing portion 30 is arranged inside the housing 10 further away from the switch body 2 than the cam portion 22 in the second direction Z.
- the biasing portion 30 has a coil spring 31 and a return plunger 32 arranged between the coil spring 31 and the cam portion 22 .
- the coil spring 31 urges the cam portion 22 in the second direction Z and in a direction approaching the switch body 2 to return the shaft body 21 to the return position P1.
- the return plunger 32 includes a transmission plate portion 321 that contacts the cam body 221 and transmits the biasing force of the coil spring 31 to the cam portion 22, and a guide plate portion 322 that guides the movement of the transmission plate portion 321 in the second direction Z. consists of
- the plunger 40 is arranged inside the housing 10 between the switch body 2 and the cam portion 22 in the second direction Z and is arranged to face the cam portion 22.
- the switch body 2 is turned on and off by moving in the second direction Z by rotation.
- the cam portion 22 contacts at the first operating position P2 but does not contact at the second operating position P3, or the cam portion 22 contacts at the second operating position P3 but does not contact the first operating position.
- the operation in which the cam portion 22 does not contact is defined as the one-sided operation.
- An operation in which the cam portion 22 contacts not only at the first operating position P2 but also at the second operating position P3 is defined as a two-side operation.
- the plunger 40 has a plunger body 41, a first contact portion 42, a second contact portion 43, a third contact portion 44 and a non-contact portion 45, as shown in FIGS.
- the plunger main body 41 has a substantially square plate shape, and one surface in the thickness direction faces the cam portion 22 in the second direction Z, as shown in FIG.
- the first contact portion 42 protrudes from the plunger body 41 toward the cam portion 22 along the second direction Z, can be accommodated in the first notch 224, and can contact the first protrusion portion 222. It is configured.
- the second contact portion 43 protrudes from the plunger body 41 toward the cam portion 22 along the second direction Z, and can be accommodated in the second notch 225 and can contact the first protrusion 222. It is configured.
- the first contact portion 42 and the second contact portion 43 are arranged so as to face each other in the facing direction (for example, the third direction Y) intersecting the second direction Z. As shown in FIG.
- the third contact portion 44 protrudes from the plunger body 41 toward the cam portion 22 along the second direction Z, can be accommodated in the first notch 224, and can contact or contact the second protrusion 223. It is configured to be able to be accommodated in the second notch 225 and contactable with the first projecting portion 222 .
- the non-contact portion 45 is configured so as not to contact the first projecting portion 222 and the second projecting portion 223, as shown in FIG.
- the third contact portion 44 and the non-contact portion 45 are arranged to face each other in a direction that intersects the second direction Z and is different from the facing direction (for example, the first direction X).
- the plunger body 41 has a first side 411 which is one side facing the third direction Y and a second side 411 which faces the first side 411 in the third direction Y. It has a quadrangular shape composed of a side 412 , a third side 413 intersecting the first side 411 and the second side 412 , and a fourth side 414 facing the third side 413 .
- the first contact portion 42 has a bar shape with a substantially rectangular cross section and is arranged on the first side 411 of the plunger main body 41 .
- the second contact portion 43 has a bar shape with a substantially rectangular cross section and is arranged on the second side 412 of the plunger main body 41 .
- the third contact portion 44 has a bar shape with a substantially rectangular cross section and is arranged on the third side 413 of the plunger body 41 , and the non-contact portion 45 is arranged on the fourth side 414 of the plunger body 41 .
- One longitudinal end of the first contact portion 42 is connected to one longitudinal end of the third contact portion 44
- a longitudinal end of the second contact portion 43 is connected to the other longitudinal end of the third contact portion 44 . The other end is connected.
- each of the first contact portion 42 and the second contact portion 43 is a slanted surface provided at the end of the surfaces facing each other in the second direction Z and away from the plunger body 41. 421 and 431.
- the inclined surfaces 421 and 431 are inclined in directions away from each other as they are separated from the plunger body 41 in the second direction Z.
- the third contact portion 44 has an inclined surface 441 continuous with the inclined surfaces 421 and 431 of the first contact portion 42 and the second contact portion.
- the non-contact portion 45 is a recess that is surrounded by the first contact portion 42, the second contact portion 43 and the plunger body 41 and can accommodate the first projecting portion 222 and the second projecting portion 223. It is configured.
- the movement of the plunger 40 in the first direction X and the third direction Y is restricted by the inner surface forming the accommodating portion 14 of the housing 10 .
- the housing 10 has therein the accommodating portion 14 that accommodates the plunger 40 while positioning it in a direction intersecting the second direction Z.
- the portion 141 of the accommodating portion 14 that accommodates the plunger 40 has a rectangular shape that is substantially the same as the external shape of the plunger 40 when viewed along the second direction Z.
- a concave portion 142 recessed in a direction away from the peripheral wall portion 12 is provided on the inner surface of the portion 141 in the first direction X and far from the peripheral wall portion 12 . This concave portion 142 makes it easy to remove the plunger 40 that is housed in the housing portion 14 from the housing portion 14 .
- the operating lever 50 is arranged outside the housing body 11 and extends in a direction intersecting (for example, perpendicular to) the shaft portion 20 .
- the operating lever 50 is connected to the shaft portion 20 at one end in the extending direction of the operating lever 50 so as to be rotatable together with the shaft portion 20 .
- the plunger 40 is configured so that the operation mode can be set from either one-sided operation or two-sided operation.
- the third contact portion 44 faces the second notch 225 and the first projecting portion 222, and the non-contact portion 45 faces the first notch 224 and the second projecting portion 223.
- a plunger 40 is arranged.
- the shaft body 21 is forwardly rotated from the return position P1 toward the first operating position P2 (that is, in the direction of the arrow A)
- the first projecting portion 222 comes into contact with the third contact portion 44 to move the plunger 40.
- the switch body 2 is switched from off to on by moving in the second direction Z and in a direction approaching the switch body 2 (hereinafter referred to as an operation direction).
- the shaft body 21 when the shaft body 21 is reversely rotated from the return position P1 toward the second operating position P3 (that is, in the direction of the arrow B), the third contact portion 44 is accommodated in the second notch 225 and the second projecting portion 223 is accommodated in the non-contact portion 45 .
- the plunger 40 even if the shaft body 21 is reversely rotated, the plunger 40 does not move in the operating direction, and the switch body 2 remains off and cannot be turned on.
- FIG. 7 shows the limit switch 1 in which the plunger 40 shown in FIG. 4 is rotated 180 degrees around the second direction Z.
- the third contact portion 44 faces the first notch 224 and the second projecting portion 223, and the non-contact portion 45 faces the second notch 225 and the first projecting portion 222.
- a plunger 40 is arranged.
- the third contact portion 44 is accommodated in the first notch 224 and the first projecting portion 222 is accommodated in the non-contact portion 45 .
- the second projecting portion 223 contacts the third contact portion 44 to move the plunger 40 in the operating direction, thereby switching the switch body 2 from off to on. .
- the operating mode of the limit switch 1 is set to one-side operation.
- the plunger 40 In the second direction Z, the plunger 40 is arranged so that the third contact portion 44 faces the first notch 224 and the second projecting portion 223, and the non-contact portion 45 faces the second notch 225 and the first projecting portion 222.
- the plunger 40 In the second direction Z, the plunger 40 is positioned so that the third contact portion 44 faces the second notch 225 and the first projecting portion 222, and the non-contact portion 45 faces the first notch 224 and the second projecting portion 223. Deploy.
- FIG. 8 shows the limit switch 1 in which the plunger 40 shown in FIG. 4 is rotated 90 degrees around the second direction Z. 8, in the second direction Z, the second contact portion 43 faces the first notch 224 and the second projecting portion 223, and the first contact portion 42 faces the second notch 225 and the first projecting portion 222.
- a plunger 40 is arranged.
- the first projecting portion 222 comes into contact with the first contact portion 42 to move the plunger 40 in the operating direction, thereby switching the switch body 2 from off to on. be done.
- the second projecting portion 223 contacts the second contact portion 43 to move the plunger 40 in the operating direction, thereby switching the switch body 2 from off to on. .
- the operation mode of the limit switch 1 is set to the double-sided operation.
- the plunger 40 is arranged such that the first contact portion 42 faces the second notch 225 and the first protrusion 222 and the second contact portion 43 faces the first notch 224 and the second protrusion 223 . to place.
- the plunger 40 is arranged such that the first contact portion 42 faces the first notch 224 and the second protrusion 223 and the second contact portion 43 faces the second notch 225 and the first protrusion 222 . to place.
- the limit switch 1 of this embodiment can exhibit the following effects.
- the plunger 40 includes a plunger main body 41, a first contact portion 42 that can be accommodated in the first notch 224 and can contact the first projecting portion 222 at the first operating position P2, and a second notch. 225 and configured to be able to contact the second projecting portion 223 at the second operating position P3; A third contact portion 44 that can contact the first protrusion 222 or can contact the second protrusion 223 at the second operating position P3, and a non-contact portion that does not contact the first protrusion 222 and the second protrusion 223. 45.
- the first contact portion 42 and the second contact portion 43 are arranged to face each other in the facing direction, and the third contact portion 44 and the non-contact portion 45 are arranged to face each other in a direction different from the facing direction. are placed. With such a configuration, it is possible to realize the limit switch 1 whose operation mode can be set to either one-sided operation or two-sided operation.
- the housing 10 has an accommodating portion 14 inside that accommodates the plunger 40 while positioning it in a direction intersecting the second direction.
- the plunger 40 can be reliably opposed to the cam portion 22, so that the operational reliability of the limit switch 1 can be enhanced.
- the non-contact portion 45 is surrounded by the first contact portion 42 , the second contact portion 43 and the plunger main body 41 and is composed of a concave portion capable of accommodating the first projecting portion 222 and the second projecting portion 223 .
- the limit switch 1 whose operation mode can be set to either one-sided operation or two-sided operation can be realized with a simple configuration.
- the plunger body 41 When the plunger body 41 is viewed along the second direction, it has a first side 411, a second side 412 facing the first side 411, and a third side intersecting the first side 411 and the second side 412. 413 and a fourth side 414 facing the third side 413 has a quadrangular shape.
- the first contact portion 42 is arranged on the first side 411
- the second contact portion 43 is arranged on the second side 412
- the third contact portion 44 is arranged on the third side 413
- the non-contact portion 45 is arranged on the fourth side. 414.
- the limit switch 1 can also be configured as follows.
- clockwise rotation when viewed from the direction from the peripheral wall portion 12 toward the housing body 11 along the first direction X, rotation in the direction opposite to the clockwise direction is defined as forward rotation, and clockwise rotation is defined as reverse rotation. However, it is not limited to this.
- clockwise rotation when viewed from the peripheral wall portion 12 toward the housing body 11 along the first direction X, clockwise rotation may be defined as forward rotation, and rotation in the opposite direction may be defined as reverse rotation.
- the projecting portion 222 provided on the upper side of the cam body 221 in the third direction Y is the first projecting portion
- the projecting portion provided on the lower side of the cam body 221 in the third direction Y is the first projecting portion
- 223 is the second protrusion, it is not limited to this.
- the projecting portion 223 provided on the lower side of the cam body 221 in the third direction Y may be the first projecting portion
- the projecting portion 222 provided on the upper side of the cam body 221 in the third direction Y may be the second projecting portion.
- the switch body 2 can adopt any configuration that can be switched on and off via the plunger 40 by rotating the shaft body 21 .
- the operation unit 3 may be non-detachably connected to the switch body 2.
- the peripheral wall portion 12 is not limited to being provided integrally with the housing main body 11, and may be provided separately. In this case, the peripheral wall portion 12 may be made of the same material as the housing main body 11, or may be made of a different material.
- each member that constitutes the limit switch 1 in the above embodiment is an example, and any other shape and configuration can be adopted.
- the plunger body 41 is not limited to having a square shape when viewed along the second direction Z.
- the shape of the plunger main body 41 may be polygonal or circular when viewed along the second direction Z. As shown in FIG.
- the non-contact portion 45 is not limited to being surrounded by the first contact portion 42 , the second contact portion 43 and the plunger main body 41 .
- the non-contact portion 45 can adopt any configuration that does not contact the first projecting portion 222 and the second projecting portion 223 when the shaft body 21 rotates.
- the limit switch 1 of the first aspect of the present disclosure is a switch body 2 that can be switched on and off;
- the operation unit 3 is a box-shaped housing 10; Extending from the outside of the housing 10 to the inside of the housing 10 along the first direction, it is rotatable about a rotating shaft 211 extending in the first direction from the return position to the first operating position and from the return position.
- a biasing portion 30 that causes It is arranged between the switch body 2 and the cam portion 22 in the second direction inside the housing 10 and is arranged to face the cam portion 22 .
- the cam portion 22 is a cam body 221 with which the biasing portion contacts; When viewed along the second direction, from one side of the cam body 221 in a third direction intersecting the first direction and the second direction in a radial direction with respect to the rotation shaft 211 and from the cam body 221 a first projecting portion 222 configured to project in a direction away from and contact the plunger 40; a second projecting portion 223 projecting from the other side of the cam body 221 in the third direction in the radial direction and in a direction away from the cam body 221 and configured to be able to contact the plunger 40; A first notch 224 provided at one end of the first projecting portion 222 in the first direction and extending from the end of the first projecting portion 222 farther from the rotating shaft 211 in the radial direction toward the rotating shaft 211.
- a second notch provided at the other end of the second projecting portion 223 in the first direction and extending from the end of the second projecting portion 223 farther from the rotating shaft 211 in the radial direction toward the rotating shaft 211 225 and
- the plunger 40 is a plunger body 41 facing the cam portion 22 in the second direction; a first contact portion 42 protruding from the plunger body 41 toward the cam portion 22 along the second direction and configured to be accommodated in the first notch 224 and contactable with the second projecting portion 223; a second contact portion 43 that protrudes from the plunger body 41 toward the cam portion 22 along the second direction and is configured to be accommodated in the second notch 225 and to contact the first projecting portion 222; It protrudes from the plunger main body 41 toward the cam portion 22 along the second direction and can be accommodated in the first notch 224 and can come into contact with the second projecting portion 223 or can be accommodated in the second notch 225 and the a third contact portion 44 configured to be able to contact the first
- the first contact portion 42 faces the second notch 225 and the first projecting portion 222
- the second contact portion 43 faces the first notch 224 and the second projecting portion 223.
- the third contact portion 44 faces the first notch 224 and the second projecting portion 223, and the non-contact portion 45 faces the second notch 225 and the first projecting portion 222.
- the third contact portion 44 faces the second notch 225 and the first projecting portion 222
- the non-contact portion 45 faces the first notch 224 and the second projecting portion 223.
- the limit switch 1 of the second aspect of the present disclosure is The housing 10 is It has inside an accommodating portion 14 that accommodates the plunger 40 while positioning it in a direction intersecting the second direction.
- the limit switch 1 of the third aspect of the present disclosure is The non-contact portion 45 is surrounded by the first contact portion 42, the second contact portion 43, and the plunger main body 41, and is composed of a concave portion capable of accommodating the first projecting portion 222 and the second projecting portion 223. It is
- the limit switch 1 of the fourth aspect of the present disclosure is
- the plunger body 41 has a polygonal shape when viewed along the second direction.
- the limit switch 1 of the fifth aspect of the present disclosure is When the plunger main body 41 is viewed along the second direction, a first side 411, a second side 412 opposite to the first side 411, and the first side 411 and the second side 412 It has a quadrangular shape composed of a third side 413 that intersects and a fourth side 414 that faces the third side 413,
- the first contact portion 42 is arranged on the first side 411
- the second contact portion 43 is arranged on the second side 412
- the third contact portion 44 is arranged on the third side 413
- the contact portion 44 is arranged on the third side 413.
- a contact portion 45 is arranged on the fourth side 414 .
- the limit switch of the present disclosure can be applied, for example, to assembly lines of automobiles and the like.
Landscapes
- Rotary Switch, Piano Key Switch, And Lever Switch (AREA)
Abstract
Description
オンオフ切り替え可能なスイッチ本体と、
前記スイッチ本体に接続された操作部と
を備え、
前記操作部が、
箱状のハウジングと、
第1方向に沿って前記ハウジングの外部から前記ハウジングの内部まで延びて、前記第1方向に延びる回転軸まわりに復帰位置から第1動作位置に向かう正回転可能でかつ前記復帰位置から前記復帰位置に対して前記第1動作位置とは反対側の第2動作位置に向かう逆回転可能な状態で前記ハウジングに支持されている軸本体と、前記ハウジングの内部に位置する前記軸本体に設けられ前記軸本体と共に正逆回転するカム部とを有する軸部と、
前記ハウジングの内部に配置され、前記第1方向に交差する第2方向でかつ前記スイッチ本体に接近する方向に前記カム部を付勢して、前記軸本体を前記復帰位置に復帰させる付勢部と、
前記ハウジングの内部で前記第2方向において前記スイッチ本体および前記カム部の間に配置されていると共に前記カム部に対向して配置され、前記カム部の回転により前記第2方向に移動して前記スイッチ本体のオンオフを切り替えると共に、前記第1動作位置では前記カム部が接触するが前記第2動作位置では前記カム部が接触しない、または、前記第2動作位置では前記カム部が接触するが前記第1動作位置では前記カム部が接触しない片側動作と、前記第1動作位置だけでなく前記第2動作位置でも前記カム部が接触する両側動作とのいずれかから動作態様を設定可能に構成されたプランジャと
を有し、
前記カム部が、
前記付勢部が接触するカム本体と、
前記第2方向に沿って見た場合に、前記第1方向および前記第2方向に交差する第3方向における前記カム本体の一方側から前記回転軸に対する径方向でかつ前記カム本体から離れる方向に突出して、前記プランジャに接触可能に構成された第1突出部と、
前記第3方向における前記カム本体の他方側から前記径方向でかつ前記カム本体から離れる方向に突出して、前記プランジャに接触可能に構成された第2突出部と、
前記第1突出部の前記第1方向の一端に設けられ、前記径方向における前記回転軸から遠い方の前記第1突出部の端から前記回転軸に向かって延びる第1切欠と、
前記第2突出部の前記第1方向の他端に設けられ、前記径方向における前記回転軸から遠い方の前記第2突出部の端から前記回転軸に向かって延びる第2切欠と
を有し、
前記プランジャが、
前記第2方向において前記カム部に対向するプランジャ本体と、
前記プランジャ本体から前記第2方向に沿って前記カム部に向かって突出し、前記第1切欠に収容可能かつ前記第2突出部に接触可能に構成された第1接触部と、
前記プランジャ本体から前記第2方向に沿って前記カム部に向かって突出し、前記第2切欠に収容可能かつ前記第1突出部に接触可能に構成された第2接触部と、
前記プランジャ本体から前記第2方向に沿って前記カム部に向かって突出し、前記第1切欠に収容可能かつ前記第2突出部に接触可能または前記第2切欠に収容可能かつ前記第1突出部に接触可能に構成された第3接触部と、
前記第1突出部および前記第2突出部に接触しない非接触部と
を有し、
前記第1接触部および前記第2接触部は、前記第2方向に交差する対向方向において相互に対向するように配置され、前記第3接触部および前記非接触部は、前記第2方向に交差する方向でかつ前記対向方向とは異なる方向において相互に対向するように配置され、
前記第2方向において、前記第1接触部が前記第2切欠および前記第1突出部に対向し、前記第2接触部が前記第1切欠および前記第2突出部に対向するように前記プランジャが配置された状態では、動作態様が前記両側動作に設定され、
前記第2方向において、前記第3接触部が前記第1切欠および前記第2突出部に対向し前記非接触部が前記第2切欠および前記第1突出部に対向するか、または、前記第3接触部が前記第2切欠および前記第1突出部に対向し、前記非接触部が前記第1切欠および前記第2突出部に対向するように前記プランジャが配置された状態では、動作態様が前記片側動作に設定される。
・第2方向Zにおいて、第3接触部44が第1切欠224および第2突出部223に対向し非接触部45が第2切欠225および第1突出部222に対向するようにプランジャ40を配置する。
・第2方向Zにおいて、第3接触部44が第2切欠225および第1突出部222に対向し、非接触部45が第1切欠224および第2突出部223に対向するようにプランジャ40を配置する。
・第2方向Zにおいて、第1接触部42が第2切欠225および第1突出部222に対向し、第2接触部43が第1切欠224および第2突出部223に対向するようにプランジャ40を配置する。
・第2方向Zにおいて、第1接触部42が第1切欠224および第2突出部223に対向し、第2接触部43が第2切欠225および第1突出部222に対向するようにプランジャ40を配置する。
オンオフ切り替え可能なスイッチ本体2と、
前記スイッチ本体2に接続された操作部3と
を備え、
前記操作部3が、
箱状のハウジング10と、
第1方向に沿って前記ハウジング10の外部から前記ハウジング10の内部まで延びて、前記第1方向に延びる回転軸211まわりに復帰位置から第1動作位置に向かう正回転可能でかつ前記復帰位置から前記復帰位置に対して前記第1動作位置とは反対側の第2動作位置に向かう逆回転可能な状態で前記ハウジング10に支持されている軸本体21と、前記ハウジング10の内部に位置する前記軸本体21に設けられ前記軸本体21と共に正逆回転するカム部22とを有する軸部20と、
前記ハウジング10の内部に配置され、前記第1方向に交差する第2方向でかつ前記スイッチ本体2に接近する方向に前記カム部22を付勢して、前記軸本体21を前記復帰位置に復帰させる付勢部30と、
前記ハウジング10の内部で前記第2方向において前記スイッチ本体2および前記カム部22の間に配置されていると共に前記カム部22に対向して配置され、前記カム部22の回転により前記第2方向に移動して前記スイッチ本体2のオンオフを切り替えると共に、前記第1動作位置では前記カム部22が接触するが前記第2動作位置では前記カム部22が接触しない、または、前記第2動作位置では前記カム部22が接触するが前記第1動作位置では前記カム部22が接触しない片側動作と、前記第1動作位置だけでなく前記第2動作位置でも前記カム部22が接触する両側動作とのいずれかから動作態様を設定可能に構成されたプランジャ40と
を有し、
前記カム部22が、
前記付勢部が接触するカム本体221と、
前記第2方向に沿って見た場合に、前記第1方向および前記第2方向に交差する第3方向における前記カム本体221の一方側から前記回転軸211に対する径方向でかつ前記カム本体221から離れる方向に突出して、前記プランジャ40に接触可能に構成された第1突出部222と、
前記第3方向における前記カム本体221の他方側から前記径方向でかつ前記カム本体221から離れる方向に突出して、前記プランジャ40に接触可能に構成された第2突出部223と、
前記第1突出部222の前記第1方向の一端に設けられ、前記径方向における前記回転軸211から遠い方の前記第1突出部222の端から前記回転軸211に向かって延びる第1切欠224と、
前記第2突出部223の前記第1方向の他端に設けられ、前記径方向における前記回転軸211から遠い方の前記第2突出部223の端から前記回転軸211に向かって延びる第2切欠225と
を有し、
前記プランジャ40が、
前記第2方向において前記カム部22に対向するプランジャ本体41と、
前記プランジャ本体41から前記第2方向に沿って前記カム部22に向かって突出し、前記第1切欠224に収容可能かつ前記第2突出部223に接触可能に構成された第1接触部42と、
前記プランジャ本体41から前記第2方向に沿って前記カム部22に向かって突出し、前記第2切欠225に収容可能かつ前記第1突出部222に接触可能に構成された第2接触部43と、
前記プランジャ本体41から前記第2方向に沿って前記カム部22に向かって突出し、前記第1切欠224に収容可能かつ前記第2突出部223に接触可能または前記第2切欠225に収容可能かつ前記第1突出部222に接触可能に構成された第3接触部44と、
前記第1突出部222および前記第2突出部223に接触しない非接触部45と
を有し、
前記第1接触部42および前記第2接触部43は、前記第2方向に交差する対向方向において相互に対向するように配置され、前記第3接触部44および前記非接触部45は、前記第2方向に交差する方向でかつ前記対向方向とは異なる方向において相互に対向するように配置され、
前記第2方向において、前記第1接触部42が前記第2切欠225および前記第1突出部222に対向し、前記第2接触部43が前記第1切欠224および前記第2突出部223に対向するように前記プランジャ40が配置された状態では、動作態様が前記両側動作に設定され、
前記第2方向において、前記第3接触部44が前記第1切欠224および前記第2突出部223に対向し前記非接触部45が前記第2切欠225および前記第1突出部222に対向するか、または、前記第3接触部44が前記第2切欠225および前記第1突出部222に対向し、前記非接触部45が前記第1切欠224および前記第2突出部223に対向するように前記プランジャ40が配置された状態では、動作態様が前記片側動作に設定される。
前記ハウジング10が、
前記プランジャ40を前記第2方向に交差する方向において位置決めしつつ収容する収容部14を内部に有する。
前記非接触部45が、前記第1接触部42、前記第2接触部43および前記プランジャ本体41で囲まれて、前記第1突出部222および前記第2突出部223を収容可能な凹部で構成されている。
前記プランジャ本体41が、前記第2方向に沿って見た場合に、多角形状を有している。
前記プランジャ本体41が、前記第2方向に沿って見た場合に、第1辺411と、前記第1辺411に対向する第2辺412と、前記第1辺411および前記第2辺412に交差する第3辺413と、前記第3辺413に対向する第4辺414とで構成された四角形状を有し、
前記第1接触部42が前記第1辺411に配置され、前記第2接触部43が前記第2辺412に配置され、前記第3接触部44が前記第3辺413に配置され、前記非接触部45が前記第4辺414に配置されている。
2 スイッチ本体
3 操作部
10 ハウジング
11 ハウジング本体
12 周壁部
13 軸受け
14 収容部
141 部分
142 凹部
15 凹部
20 軸部
21 軸本体
211 回転軸
212 端部
22 カム部
221 カム本体
222 第1突出部
223 第2突出部
224 第1切欠
225 第2切欠
226 接触面
30 付勢部
31 コイルばね
32 復帰プランジャ
321 伝達板部
322 ガイド板部
40 プランジャ
41 プランジャ本体
411 第1辺
412 第2辺
413 第3辺
414 第4辺
42 第1接触部
421 傾斜面
43 第2接触部
431 傾斜面
44 第3接触部
441 傾斜面
45 非接触部
50 操作レバー
Claims (5)
- オンオフ切り替え可能なスイッチ本体と、
前記スイッチ本体に接続された操作部と
を備え、
前記操作部が、
箱状のハウジングと、
第1方向に沿って前記ハウジングの外部から前記ハウジングの内部まで延びて、前記第1方向に延びる回転軸まわりに復帰位置から第1動作位置に向かう正回転可能でかつ前記復帰位置から前記復帰位置に対して前記第1動作位置とは反対側の第2動作位置に向かう逆回転可能な状態で前記ハウジングに支持されている軸本体と、前記ハウジングの内部に位置する前記軸本体に設けられ前記軸本体と共に正逆回転するカム部とを有する軸部と、
前記ハウジングの内部に配置され、前記第1方向に交差する第2方向でかつ前記スイッチ本体に接近する方向に前記カム部を付勢して、前記軸本体を前記復帰位置に復帰させる付勢部と、
前記ハウジングの内部で前記第2方向において前記スイッチ本体および前記カム部の間に配置されていると共に前記カム部に対向して配置され、前記カム部の回転により前記第2方向に移動して前記スイッチ本体のオンオフを切り替えると共に、前記第1動作位置では前記カム部が接触するが前記第2動作位置では前記カム部が接触しない、または、前記第2動作位置では前記カム部が接触するが前記第1動作位置では前記カム部が接触しない片側動作と、前記第1動作位置だけでなく前記第2動作位置でも前記カム部が接触する両側動作とのいずれかから動作態様を設定可能に構成されたプランジャと
を有し、
前記カム部が、
前記付勢部が接触するカム本体と、
前記第2方向に沿って見た場合に、前記第1方向および前記第2方向に交差する第3方向における前記カム本体の一方側から前記回転軸に対する径方向でかつ前記カム本体から離れる方向に突出して、前記プランジャに接触可能に構成された第1突出部と、
前記第3方向における前記カム本体の他方側から前記径方向でかつ前記カム本体から離れる方向に突出して、前記プランジャに接触可能に構成された第2突出部と、
前記第1突出部の前記第1方向の一端に設けられ、前記径方向における前記回転軸から遠い方の前記第1突出部の端から前記回転軸に向かって延びる第1切欠と、
前記第2突出部の前記第1方向の他端に設けられ、前記径方向における前記回転軸から遠い方の前記第2突出部の端から前記回転軸に向かって延びる第2切欠と
を有し、
前記プランジャが、
前記第2方向において前記カム部に対向するプランジャ本体と、
前記プランジャ本体から前記第2方向に沿って前記カム部に向かって突出し、前記第1切欠に収容可能かつ前記第2突出部に接触可能に構成された第1接触部と、
前記プランジャ本体から前記第2方向に沿って前記カム部に向かって突出し、前記第2切欠に収容可能かつ前記第1突出部に接触可能に構成された第2接触部と、
前記プランジャ本体から前記第2方向に沿って前記カム部に向かって突出し、前記第1切欠に収容可能かつ前記第2突出部に接触可能または前記第2切欠に収容可能かつ前記第1突出部に接触可能に構成された第3接触部と、
前記第1突出部および前記第2突出部に接触しない非接触部と
を有し、
前記第1接触部および前記第2接触部は、前記第2方向に交差する対向方向において相互に対向するように配置され、前記第3接触部および前記非接触部は、前記第2方向に交差する方向でかつ前記対向方向とは異なる方向において相互に対向するように配置され、
前記第2方向において、前記第1接触部が前記第2切欠および前記第1突出部に対向し、前記第2接触部が前記第1切欠および前記第2突出部に対向するように前記プランジャが配置された状態では、動作態様が前記両側動作に設定され、
前記第2方向において、前記第3接触部が前記第1切欠および前記第2突出部に対向し前記非接触部が前記第2切欠および前記第1突出部に対向するか、または、前記第3接触部が前記第2切欠および前記第1突出部に対向し、前記非接触部が前記第1切欠および前記第2突出部に対向するように前記プランジャが配置された状態では、動作態様が前記片側動作に設定される、リミットスイッチ。 - 前記ハウジングが、
前記プランジャを前記第2方向に交差する方向において位置決めしつつ収容する収容部を内部に有する、請求項1のリミットスイッチ。 - 前記非接触部が、前記第1接触部、前記第2接触部および前記プランジャ本体で囲まれて、前記第1突出部および前記第2突出部を収容可能な凹部で構成されている、請求項1または2のリミットスイッチ。
- 前記プランジャ本体が、前記第2方向に沿って見た場合に、多角形状を有している、請求項1から3のいずれか1つのリミットスイッチ。
- 前記プランジャ本体が、前記第2方向に沿って見た場合に、第1辺と、前記第1辺に対向する第2辺と、前記第1辺および前記第2辺に交差する第3辺と、前記第3辺に対向する第4辺とで構成された四角形状を有し、
前記第1接触部が前記第1辺に配置され、前記第2接触部が前記第2辺に配置され、前記第3接触部が前記第3辺に配置され、前記非接触部が前記第4辺に配置されている、請求項4のリミットスイッチ。
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