JP2014207325A - Bistable mobile device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To improve safety, to obtain secure operation and to operate a device with a little power.SOLUTION: A columnar permanent magnet magnetized in a radial direction is defined as a movable element 1. At one side in a movable axis direction with the movable element 1 interposed, a first stator 4 is provided and at the other side, a second stator 5 is provided. The first stator 4 is formed from permanent magnets 4-1 and 4-2, an N pole of the permanent magnet 4-1 is defined as a side of the movable element 1 and an S pole of the permanent magnet 4-2 is defined as the side the movable element 1. The second stator 5 is formed from permanent magnets 5-1 and 5-2, an S pole of the permanent magnet 5-1 is defined as the side of the movable element 1, and an N pole of the permanent magnet 5-2 is defined as the side of the movable element 1. Movable element rotation means 8 is provided which is formed from a solenoid-type electromagnetic coil 6 and yokes 7-1 and 7-2. When switching a latch position, a magnetic field is given to the movable element 1, the movable element 1 is rotated, and positions of magnetic poles are switched.

Description

  The present invention relates to a bistable moving device that uses a mover and a stator, moves the mover between two positions, and holds the mover at either position.

  Conventionally, as a bistable moving device of this kind, there is a mechanism that allows the mover to move between two positions in various applications such as shut-off valves, electromagnetic switches, and electronic locks, and holds it in either position. The bistable latch type solenoid provided is used.

  For example, as a bistable linear electromagnetic solenoid in Patent Document 1 and as a solenoid actuator in Patent Document 2, a plunger (movable element) fixed to a nonmagnetic shaft that can move in the axial direction has an axial direction across the plunger. It is configured to be latched by one of a set of permanent magnets (stator) having a fixed core placed symmetrically to each other, and movement to the other end is arranged symmetrically in the axial direction surrounding them. Also disclosed is a bistable moving device that uses a set of exciting coils.

  In Patent Document 1 and Patent Document 2, the mover is an iron core and a magnet is arranged on the stator. On the other hand, for example, in the bidirectional latching solenoid shown in Patent Document 3, the mover is In any case, the conventional bistable moving device has a structure in which either the mover or the stator is an iron core (magnetic material) and the other is a magnet. Has been.

JP-A-8-288129 JP-A-7-335434 JP 2010-98037 A

  However, in the conventional bistable moving device described above, since either the mover or the stator is an iron core (magnetic material) and the other is a magnet, the supply current (excitation current) to the excitation coil is reduced. When the mover is latched to either one of the pair of stators in the shut-off state, if an impact or excessive force is applied in the other direction and the mover moves in the other direction The mover is latched in the other direction, resulting in a serious malfunction. In particular, shut-off valves, electromagnetic switches, electronic locks, and the like become a fatal problem that the open / close state is reversed by an impact.

  Further, if the latching force is increased by increasing the magnetic force of the latching permanent magnet to prevent this, a problem arises that a large amount of electric power is required for releasing the latch and moving in the other direction.

  In addition, in order to perform the initial movement of the mover in the direction of the movable axis, that is, the attracting action of the mover in the most distant state with electromagnetic force, in particular, stroke (≈ gap between the mover and the stator) Is large, the electromagnetic force is inversely proportional to the square of the distance (gap), and thus a large amount of power is required.

The present invention has been made to solve such a problem, and the object of the present invention is that an impact in the other direction or a temporary excessive force is applied, and the mover has moved in the other direction. Even if the mover is not latched in the other direction, the mover automatically returns to the latch in the original direction, and a bistable movement device capable of obtaining a highly safe and reliable operation. Is to provide.
It is another object of the present invention to provide a bistable moving device that can be operated with less electric power than a conventional solenoid that is used as the main power for movement in the direction of the movable axis.

  In order to achieve such an object, the present invention arranges magnetic poles that are movable in the direction of the movable axis, are held rotatably about the movable axis, and face each other across the movable axis in a direction orthogonal to the movable axis. The movable element having the permanent magnet is rotated, and the movable element is rotated so that the rotational angle position of the movable element is switched between the first rotational angle position and the second rotational angle position. When the mover rotating means for switching the position of the magnetic pole is located on one side of the movable axis direction across the mover, and the mover is at the first rotation angle position, the mover is magnetically attracted and held. When in the second rotational angle position, the first stator composed of a member including a permanent magnet that magnetically repels the mover, and the other side in the movable axis direction across the mover, the mover When in the second rotational angle position, move the mover And pull holding the movable element be in a first rotational angular position, characterized in that it comprises a second stator made of a member including a permanent magnet to magnetically repel the mover.

  In the present invention, by rotating the mover, the rotation angle position can be switched between the first rotation angle position and the second rotation angle position. In this case, the mover is switched from the first rotation angle position to the second rotation angle position, and the mover is switched from the second rotation angle position to the first rotation angle position. The positions of the opposing magnetic poles of the permanent magnet are switched.

  In the present invention, the first stator is composed of a member including a permanent magnet, and is located on one side of the movable axis direction with the mover interposed therebetween. When the mover is at the first rotation angle position, the mover Is magnetically attracted and when the mover is in the second rotational angle position, the mover is magnetically repelled. Similarly to the first stator, the second stator is made of a member including a permanent magnet, and is located on the other side in the movable axis direction with the mover interposed therebetween, and the mover is at the second rotational angle position. In this case, the mover is magnetically attracted and held, and when the mover is at the first rotation angle position, the mover is magnetically repelled.

  That is, in the present invention, when the mover is at the first rotation angle position and the mover is magnetically attracted to the first stator, when the mover is rotated to the second rotation angle position, The magnetic attractive force between the mover and the first stator disappears, and a magnetic repulsive force is generated between the mover and the first stator. As a result, the mover leaves the first stator and moves toward the second stator due to the resultant magnetic attraction force generated between the first stator and the second stator, and is magnetically attracted to the second stator. The In this case, the magnetic attraction force is larger than the magnetic repulsion force for moving the mover from the first stator side to the second stator side.

  Further, in the present invention, when the mover is at the second rotation angle position and the mover is magnetically attracted to the second stator, when the mover is rotated to the first rotation angle position, The magnetic attractive force between the mover and the second stator disappears, and a magnetic repulsive force is generated between the mover and the second stator. As a result, the mover leaves the second stator and moves toward the first stator due to the resultant magnetic attraction force generated between the mover and the first stator, and is magnetically attracted to the first stator. The In this case, the magnetic attraction force is larger than the magnetic repulsion force for moving the mover from the second stator side to the first stator side.

  In the present invention, for example, when the mover is at the first rotational angle position and the mover is magnetically attracted to the first stator, an impact in the direction of the second stator or temporary It is assumed that an excessive force is applied and the mover has moved in the direction of the second stator. In this case, the mover moves in the direction of the second stator while being in the first rotation angle position. When the mover approaches the second stator, a magnetic repulsive force is generated between the mover and the second stator. As a result, the mover moves away from the second stator and moves toward the first stator due to the resultant magnetic attraction generated between the mover and the first stator, and is magnetically attracted to the first stator. The In other words, even if the mover moves in the direction of the second stator, the mover is not latched on the second stator side, but automatically returns to the latch on the first stator side.

  In the present invention, for example, when the mover is at the second rotational angle position and the mover is magnetically attracted to the second stator, an impact in the direction toward the first stator or temporary It is assumed that excessive force is applied and the mover has moved in the direction of the first stator. In this case, the mover moves in the direction of the first stator while being at the second rotation angle position. When the mover approaches the first stator, a magnetic repulsive force is generated between the mover and the first stator. As a result, the mover moves away from the first stator and moves toward the second stator due to the resultant magnetic attraction force generated between the mover and the second stator, and is magnetically attracted to the second stator. The That is, even when the mover moves in the direction of the first stator, the mover is not latched on the first stator side but automatically returns to the latch on the second stator side.

  Thus, in the present invention, unless the position of the opposing magnetic pole of the permanent magnet of the mover is changed by rotating the mover, the latch of the mover from the first stator side to the second stator side is not changed. Switching and switching of the latch from the second stator side to the first stator side cannot be performed. In addition, without changing the positions of the opposing magnetic poles of the permanent magnet of the mover, the mover that is latched on the first stator side is moved to the second stator side, and the second stator side is moved. When the latched mover moves to the first stator side, it automatically returns to the latch on the original stator side. This is due to the addition of a lock mechanism called rotation to the movement of the mover in the direction of the movable axis. By adding this lock mechanism, safety can be improved and reliable operation can be obtained. Become.

  Moreover, in this invention, a permanent magnet is used for both a needle | mover and a stator, and the main motive power for moving to a movable-axis direction is a stator (permanent magnet) by the side of a movement with respect to a needle | mover (permanent magnet). The magnetic repulsive force and the magnetic attraction force of the destination side stator (permanent magnet) are used at the same time, and the rotational force for rotating the mover is used as pilot power to change the position of the magnetic pole. For example, when a magnetic field is applied instantaneously from a position close to the mover (permanent magnet), it is used as the main power for movement in the direction of the movable axis with a conventional solenoid. It is possible to operate with less power. Note that the rotational force (rotational torque) for rotating the mover does not necessarily have to be an electromagnetic force, and may be a mechanical force from the outside.

In the present invention, the following configuration examples are conceivable as configurations of the first stator and the second stator.
As a first configuration example, the magnetic pole direction is parallel to the movable axis, each magnetic pole direction is opposite to the other, and does not contact the mover in a direction perpendicular to the movable axis across the movable axis. A pair of permanent magnets arranged apart from each other is provided, and one set of permanent magnets of the first stator and one set of permanent magnets of the second stator are arranged in the direction of the movable axis of each permanent magnet. The movable poles are arranged on one side and the other side of the movable axis so that the opposing magnetic poles have different polarities.

  As a second configuration example, the magnetic pole direction is a direction orthogonal to the movable axis, the magnetic pole directions are the same direction, and are separated so as not to contact the mover in a direction orthogonal to the movable axis across the movable axis. A set of permanent magnets arranged in the above manner is provided, and the set of permanent magnets of the first stator and the set of permanent magnets of the second stator are opposed to each other in the direction of the movable axis of each permanent magnet. The magnetic poles are arranged on one side and the other side in the movable axis direction with the mover interposed therebetween so that the magnetic poles are different from each other.

  As a third configuration example, a cylindrical permanent magnet is provided that is arranged with the movable shaft and the center approximately aligned and has an inner diameter that does not contact the mover. One of the cylindrical permanent magnet and the cylindrical permanent magnet of the second stator is moved in the direction of the movable axis with the mover interposed therebetween so that the magnetic poles facing each other in the direction of the movable axis of the permanent magnet are different from each other. It is arranged on the side and the other side.

  With such a configuration, the permanent magnet of the mover and the permanent magnet of the stator are arranged so as not to come into contact with each other, so that the impact force and adsorption sound to the permanent magnet that is generated at the time of latching in the prior art is also suppressed. In addition, it is possible to hold the latched state with compliance.

  Further, in the present invention, only the force in the movable axis direction from the mover is mainly transmitted to the external driven body, and the rotational force around the movable axis of the mover slips or rolls between the movable body. It is preferable to suppress transmission to the operated body by installing a mechanism or the like.

  According to the present invention, the mover is configured to include a permanent magnet in which a magnetic pole is disposed opposite to the movable axis in a direction perpendicular to the movable axis, and is located on one side of the movable axis with the mover interposed therebetween. When the mover is in the first rotation angle position, the mover is magnetically attracted and held, and when the mover is in the second rotation angle position, the first member is made of a member including a permanent magnet that magnetically repels the mover. When the mover is at the second rotation angle position and the mover is in the second rotation angle position, the mover is magnetically attracted and held, and the mover is at the first rotation angle. And a second stator composed of a member including a permanent magnet for magnetically repelling the mover. When the mover is rotated by the mover rotating means, the rotation angle position is set to the first stator. By switching between the rotation angle position and the second rotation angle position, Since the position of the opposing magnetic pole of the permanent magnet of the moving element is changed, even if the moving element moves in the other direction due to impact in the other direction or temporary excessive force, The mover is automatically returned to the latch in the original direction without being latched in the direction, so that safety is improved and a reliable operation can be obtained.

  Further, according to the present invention, the rotational force for rotating the mover is used as pilot power only for exchanging the position of the magnetic pole, so for example, instantaneously from a position close to the permanent magnet of the mover. It is only necessary to apply a magnetic field to the motor, and it is possible to operate with less power than in the case where the conventional solenoid is used as the main power for movement in the direction of the movable axis.

It is a figure (a front view and a side view) which shows the structure of the principal part of one Embodiment (Embodiment 1) of the bistable movement apparatus which concerns on this invention. It is AA sectional drawing (sectional drawing of a movable shaft center part) in Fig.1 (a). It is a figure (front view) which shows the state in which the needle | mover is magnetically attracted by the 2nd stator in the structure shown in FIG. The figure which shows the example which has arrange | positioned the yoke which connects the surface on the opposite side to the needle | mover of a pair of permanent magnets of the 1st and 2nd stator in the structure shown in FIG. 1 (a front view and a side view) It is. FIG. 4 is a diagram showing an example in which a yoke extending toward the movable shaft is arranged on the surface of the pair of permanent magnets of the first and second stators in the configuration shown in FIG. 4 (front view and B -B sectional view). 1 is a diagram showing an example in which one set of permanent magnets of the first and second stators is one permanent magnet in the configuration shown in FIG. Front view). FIG. 6 is a diagram (front view) illustrating an example in which a yoke extending to a movable shaft is disposed on a surface opposite to the surface on the mover side of the permanent magnets of the first and second stators in the configuration illustrated in FIG. 6. It is. It is a figure (a front view and a side view) which shows the structure of the principal part of other embodiment (Embodiment 2) of the bistable movement apparatus which concerns on this invention. The figure which shows the example which has arrange | positioned the yoke which connects the surface of the 1st and 2nd stator of the 1st and 2nd stator in the direction opposite to the movable axis in the structure shown in FIG. 8 (front view and side view) It is. 9 is a diagram showing an example in which a yoke extending to the movable element side in parallel to the movable axis is arranged on the surface of the movable magnet side of a pair of permanent magnets of the first and second stators in the configuration shown in FIG. (A front view and a side view). FIG. 8 is a diagram showing an example in which a set of permanent magnets of the first and second stators is set as one permanent magnet in the configuration shown in FIG. Front view). It is a figure (a front view and a side view) which shows the structure of the principal part of other embodiment (Embodiment 3) of the bistable movement apparatus which concerns on this invention. It is CC sectional drawing in FIG.12 (b). The figure which shows the example which comprised the mover rotation means by the yoke which connects the other end of the core of this set of solenoid type electromagnetic coils and one set of solenoid type electromagnetic coils arranged with one end of the core facing each other. (A front view and a side view). In the configuration shown in FIG. 1, the line L1 connecting the center of the permanent magnet and the movable axis constituting the stator in the direction orthogonal to the end of the yoke opposite to the movable axis from the direction almost orthogonal to the movable axis. It is a figure (side view) which shows the example made to cross | intersect the line L2 which connects a center. In the configuration shown in FIG. 14, the solenoid-type electromagnetic coil opposed to the line L <b> 1 connecting the center of the permanent magnet and the movable axis constituting the stator in a direction orthogonal to the direction perpendicular to the movable axis with the mover interposed therebetween. It is a figure (side view) which shows the example made to cross | intersect the line L2 which connects the axial center of a core. The figure which shows the example which made the line L2 which connects the center of the edge part of the yoke which opposes across a needle | mover from the direction shown in FIG. It is sectional drawing of a movable shaft center part). In the configuration shown in FIG. 14, an example in which the movable axis does not intersect the line L <b> 2 that connects the axes of the cores of the solenoid type electromagnetic coils facing each other across the mover from a direction substantially orthogonal to the movable axis. It is a figure (sectional drawing of a movable shaft center part) shown. In the configuration shown in FIG. 1, an example in which the center of the end of the yoke facing the movable element from the direction substantially orthogonal to the movable axis is shifted to both sides of the movable element within a plane orthogonal to the movable axis. It is a figure (sectional drawing of a movable shaft center part) shown. In the configuration shown in FIG. 14, the core of the solenoid type electromagnetic coil core facing the movable element from the direction substantially orthogonal to the movable axis is shifted to both sides of the movable element in a plane orthogonal to the movable axis. It is a figure (sectional drawing of a movable shaft center part) which shows the example which carried out. It is a figure (a front view and a side view) which shows the example which attached the rotation lever to the shaft and gave a mechanical force (rotation torque) from the outside, and rotated a mover. It is a figure (a front view and a side view) showing an example in which a set of permanent magnets for generating a rotational force is provided so as to be movable back and forth from a direction substantially orthogonal to the movable shaft. It is a figure (front view) which shows the 1st example of the example which comprised the needle | mover with the some permanent magnet. It is a figure (front view) which shows the 2nd example of the example which comprised the needle | mover with the some permanent magnet. It is a block diagram (a front view, DD sectional drawing, EE sectional drawing) at the time of using the cylindrical permanent magnet which comprises a needle | mover as 4 magnetic poles. It is a figure which shows the structure containing the mechanism which transmits the force of the movable axis direction of a needle | mover to an external to-be-operated body. It is a figure which shows the principal part at the time of using the rotation sliding part as a bearing in the structure shown in FIG.

Hereinafter, the present invention will be described in detail with reference to the drawings.
[Embodiment 1]
FIG. 1 is a diagram showing a configuration of a main part of an embodiment (embodiment 1) of a bistable moving device according to the present invention (FIG. 1 (a) is a front view, FIG. 1 (b) is a side view). is there.

  In FIG. 1, 1 (1A) is a mover, and shafts 2 (2-1, 2-2) are connected to both ends thereof. The mover 1 is a permanent magnet, and the shaft 2 is a non-magnetic material. In the following, an integral body composed of the movable element 1 and the shaft 2 is referred to as a movable body and is denoted by reference numeral 3.

  The movable body 3 is provided so as to be movable in the Z-axis direction indicated by a dashed line in the figure. That is, the movable body 3 (movable element 1) is provided so as to be movable in the movable axis direction with the Z-axis direction as the movable axis direction. The movable body 3 (movable element 1) is held rotatably about the Z axis. Hereinafter, the Z axis is referred to as a movable axis.

  The mover 1 has a cylindrical shape (cylindrical permanent magnet) and is magnetized in the radial direction. In this example, magnetic poles facing each other across the movable axis Z are arranged in a direction orthogonal to the movable axis Z, and one surface side (upper side in the state of FIG. 1) facing the movable axis Z is S. The pole and the other surface side (the lower side in the state of FIG. 1) are N poles.

  In FIG. 1, 4 is a first stator provided on one side in the movable axis direction with the mover 1 interposed therebetween, and 5 is a second fixed provided on the other side in the movable axis direction with the mover 1 interposed therebetween. A child.

  The first stator 4 has a magnetic pole direction parallel to the movable axis Z, each magnetic pole direction opposite to the other, and the movable element in a direction perpendicular to the movable axis Z across the movable axis Z. 1 is composed of a pair of permanent magnets 4-1 and 4-2 arranged so as not to contact each other. In this example, the N pole of the permanent magnet 4-1 is the mover 1 side, the S pole is the opposite side of the mover 1, the S pole of the permanent magnet 4-2 is the mover 1 side, and the N pole is movable. It is the opposite side to the child 1.

  The second stator 5 has a magnetic pole direction parallel to the movable axis Z, each magnetic pole direction opposite to the other, and the movable element in a direction perpendicular to the movable axis Z across the movable axis Z. 1 is composed of a pair of permanent magnets 5-1 and 5-2 which are arranged so as not to contact one. In this example, the S pole of the permanent magnet 5-1 is the mover 1 side, the N pole is the opposite side of the mover 1, the N pole of the permanent magnet 5-2 is the mover 1 side, and the S pole is movable. It is the opposite side to the child 1.

  That is, in the bistable moving device 101 of the first embodiment, a set of permanent magnets 4-1 and 4-2 of the first stator 4 and a set of permanent magnets 5-1 of the second stator 5. , 2 are arranged on one side and the other side in the movable axis direction with the mover 1 sandwiched so that the magnetic poles facing each other in the direction of the movable axis of the permanent magnets are different from each other.

  In the bistable moving device 101 of the first embodiment, the length 1 of the movable element 1 in the movable axis direction is the first length arranged on one side and the other side in the movable axis direction across the movable element 1. The distance between the permanent magnets 4-1 and 4-2 constituting the stator 4 and the permanent magnets 5-1 and 5-2 constituting the second stator 5 is equal to or less than the facing surface distance L.

  In FIG. 1, reference numeral 8 (8A) designates a magnetic field in the forward / reverse direction to the mover 1 from a direction substantially orthogonal to the movable axis Z to rotate the mover 1, and the rotation angle position thereof is the first rotation angle position. This is a mover rotating means for switching the position of the opposing magnetic poles of the mover 1 (permanent magnet) by switching between the (0 ° position) and the second rotation angle position (180 ° position).

  The mover rotating means 8 includes a solenoid type electromagnetic coil 6, an L-shaped yoke 7-1 having one end connected or integrated with one end and the other end of the core of the solenoid type electromagnetic coil 6, and 7-2. In this mover rotating means 8, the other ends of the L-shaped yokes 7-1 and 7-2 are opposed to each other with the mover 1 sandwiched from a direction substantially orthogonal to the movable axis Z. FIG. 2 is a cross-sectional view taken along the line AA in FIG.

[Normal latch operation]
The state of FIG. 1 shows a state where the mover 1 is rotated by the mover rotating means 8 and the rotation angle position of the mover 1 is switched to the first rotation angle position (0 ° position). At the first rotation angle position, the magnetic pole direction of the mover 1 (columnar permanent magnet) is the S pole on the upper side and the N pole on the lower side, as shown in FIG. At the first rotational angle position of the mover 1, the first stator 4 magnetically holds the mover 1, and the second stator 5 magnetically repels the mover 1. Thereby, the needle | mover 1 is latched by the 1st stator 4 side.

  From a state in which the mover 1 is latched on the first stator 4 side, the mover 1 is rotated by the mover rotating means 8, and the rotation angle position of the mover 1 is set to the second rotation angle position (180 °). Switch to position). In other words, it is assumed that the positions of the opposing magnetic poles of the mover 1 (cylindrical permanent magnet) are interchanged so that the lower side is the S pole and the upper side is the N pole.

  Then, the magnetic attractive force between the mover 1 and the first stator 4 disappears, and a magnetic repulsive force is generated between the mover 1 and the first stator 4. As a result, the mover 1 leaves the first stator 4 and moves toward the second stator 5 due to the resultant magnetic attraction generated between the second stator 5 and the second stator 5. 5 is magnetically attracted and latched on the second stator 5 side (see FIG. 3). In this case, the force for moving the mover 1 from the first stator 4 side to the second stator 5 side is greater than twice the magnetic repulsion force by the magnetic attraction force.

  Next, from the state where the mover 1 is latched on the second stator 5 side, the mover 1 is rotated by the mover rotating means 8, and the rotation angle position of the mover 1 is changed to the first rotation angle position. Switch to. In other words, it is assumed that the positions of the opposing magnetic poles of the mover 1 (cylindrical permanent magnet) are switched and the upper side is returned to the S pole and the lower side is returned to the N pole.

  Then, the magnetic attractive force between the mover 1 and the second stator 5 disappears, and a magnetic repulsive force is generated between the mover 1 and the second stator 5. As a result, the mover 1 leaves the second stator 5, and moves toward the first stator 4 side by the resultant force with the magnetic attraction force generated between the first stator 4 and the first stator 4. 4 is magnetically attracted to and latched on the first stator 4 side (see FIG. 1A). In this case, the force that moves the mover 1 from the second stator 5 side to the first stator 4 side is greater than twice the magnetic repulsion force by the magnetic attraction force.

[When impact in the other direction or temporary excessive force is applied in the latched state]
Now, when the mover 1 is at the first rotation angle position and the mover 1 is magnetically attracted to the first stator 4 (see FIG. 1), the direction toward the second stator 5 is increased. It is assumed that the mover 1 has moved in the direction of the second stator 5 due to impact or temporary excessive force.

  In this case, the mover 1 moves in the direction of the second stator 5 while being in the first rotation angle position. When the mover 1 approaches the second stator 5, a magnetic repulsive force is generated between the mover 1 and the second stator 5. As a result, the mover 1 moves away from the second stator 5 and moves toward the first stator 4 by the resultant force with the magnetic attraction force generated between the first stator 4 and the first stator 4. 4 is magnetically attracted.

  In this way, in the bistable moving device 101 of the present embodiment, even when the mover 1 is latched on the first stator 4 side and moves toward the second stator 5, The mover 1 is not latched on the second stator 5 side, but automatically returns to the latch on the first stator 4 side.

  Now, when the mover 1 is at the second rotational angle position and the mover 1 is magnetically attracted to the second stator 5 (see FIG. 3), the direction toward the first stator 4 is increased. It is assumed that the mover 1 has moved in the direction of the first stator 4 due to an impact or temporary excessive force.

  In this case, the mover 1 moves in the direction of the first stator 4 while being in the second rotation angle position. When the mover 1 approaches the first stator 4, a magnetic repulsive force is generated between the mover 1 and the first stator 4. As a result, the mover 1 moves away from the first stator 4 and moves toward the second stator 5 by the resultant force with the magnetic attraction force generated between the second stator 5 and the second stator. 5 is magnetically attracted.

  Thus, in the bistable moving device 101 of the present embodiment, even when the mover 1 is latched on the second stator 5 side and moves in the direction of the first stator 4, The mover 1 is not latched on the first stator 4 side, but automatically returns to the latch on the second stator 5 side.

  As described above, in the bistable moving device 101 of the present embodiment, unless the position of the opposing magnetic poles of the mover 1 is changed by rotating the mover 1, 2 cannot be switched from the second stator 5 side to the first stator 4 side.

  Further, in a state where the positions of the opposing magnetic poles of the mover 1 are not changed, the mover 1 latched on the first stator 4 side to the second stator 5 side, the second stator 5 When the mover 1 latched on the side moves to the first stator 4 side, it automatically returns to the latch on the original stator side.

  In the bistable moving device 101 of the present embodiment, a lock mechanism called rotation is added to the movement of the mover 1 in the direction of the movable axis. By adding this lock mechanism, safety is improved and reliable. You can get the action.

  In the bistable moving device 101 of the present embodiment, permanent magnets are used for both the mover 1 and the stators 4 and 5, and the main power for moving in the direction of the movable axis is the mover 1 (permanent magnet). ) Simultaneously using both the magnetic repulsive force of the moving source side stators 4 and 5 (permanent magnet) and the moving destination side stators 4 and 5 (permanent magnet). The rotational force for rotating 1 is used only as a pilot power to change the position of the magnetic poles. As a result, it is only necessary to apply a magnetic field instantaneously from a position close to the mover 1 (permanent magnet), and with less power than that used for the main power of movement in the direction of the movable axis with a conventional solenoid. It can be operated.

  In the configuration shown in FIG. 1, a set of permanent magnets 4-1 and 4-2 of the first stator 4 and a set of permanent magnets 5-1 and 5-2 of the second stator 5 are provided. As shown in FIG. 4, the yoke 4 a that connects the surface of the pair of permanent magnets 4-1 and 4-2 opposite to the mover 1 is moved by the pair of permanent magnets 5-1 and 5-2. You may make it arrange | position the yoke 5a which connects the surface on the opposite side to the child 1. FIG.

  Further, as shown in FIG. 5, in the configuration shown in FIG. 4, yokes 4b and 4c extending to the movable shaft Z side on the surface of the pair of permanent magnets 4-1 and 4-2 on the movable element Z side, You may make it arrange | position yoke 5b, 5c extended to the movable axis Z side on the surface at the side of the needle | mover 1 of a set of permanent magnets 5-1 and 5-2. FIG. 5B is a cross-sectional view taken along the line BB in FIG.

  In the configuration shown in FIG. 5, the yokes 4b, 4c and 5b, 5c transmit magnetic flux (or lines of magnetic force) generated from the permanent magnets 4-1, 4-2 and 5-1, 5-2 to the shaft 2 side (movable shaft). In the direction perpendicular to Z), the magnetic field is efficiently applied to the mover 1 (permanent magnet), and perpendicular to the magnetic pole surfaces of the permanent magnets 4-1, 4-2 and 5-1, 5-2. This has the effect of suppressing leakage of magnetic flux to the direction (parallel to the movable axis Z) and surroundings. In the configuration shown in FIG. 5, the yokes 4a and 5a on the surface opposite to the movable element 1 are not necessarily provided.

  Further, as shown in FIG. 6, in the configuration shown in FIG. 1, the permanent magnet 4-1 is omitted from the first stator 4, only the permanent magnet 4-2 is used as the first stator 4, and the second The permanent magnet 5-2 may be omitted from the stator 5 and only the permanent magnet 5-1 may be used as the second stator 5.

  Although not shown, the permanent magnet 4-2 is omitted from the first stator 4, only the permanent magnet 4-1 is used as the first stator 4, and the second stator 5 to the permanent magnet 5 is omitted. -1 may be omitted and only the permanent magnet 5-2 may be used as the second stator 5.

  That is, a permanent magnet whose magnetic pole direction is parallel to the movable axis Z is separated so as not to contact the movable element 1 in a direction orthogonal to the movable axis Z, and the movable element 1 is centered on both sides of the movable element 1 in the movable axis direction. Alternatively, the magnetic poles may be arranged one at a substantially symmetrical position and the same magnetic pole with respect to the other.

  Further, as shown in FIG. 7, in the configuration shown in FIG. 6, yokes 4d and 4e extending to the movable shaft 1 side on the surface opposite to the surface on the mover 1 side of the permanent magnet 4-2 are replaced with permanent magnets. The yokes 5d and 5e extending to the movable shaft 1 side may be arranged on the surface opposite to the surface on the movable element 1 side of 5-1. In the configuration shown in FIG. 7, only one of the yokes 4d and 4e may be arranged with respect to the permanent magnet 4-2, and any of the yokes 5d and 5e with respect to the permanent magnet 5-1. Only one of them may be arranged.

[Embodiment 2]
In the bistable moving device 101 of the first embodiment, the direction of the magnetic poles of the pair of permanent magnets 4-1 and 4-2 in the first stator 4 and the pair of permanent magnets 5-1 in the second stator 5. And 5-2 are made parallel to the movable axis Z, respectively.

  On the other hand, in the bistable moving device 102 of the second embodiment, as shown in FIG. 8, the direction of the magnetic poles of the pair of permanent magnets 4-1 and 4-2 in the first stator 4 and the second The magnetic pole directions of the pair of permanent magnets 5-1 and 5-2 in the stator 5 are directions orthogonal to the movable axis Z, respectively.

  In the bistable moving device 102 according to the second embodiment, the first stator 4 has a magnetic pole direction perpendicular to the movable axis Z, the magnetic pole directions are the same, and the movable axis Z is sandwiched between them. Thus, they are arranged apart from each other so as not to contact the mover 1 in the direction orthogonal to the movable axis Z. In this example, the N pole of the permanent magnet 4-1 is the movable axis Z side, and the S pole of the permanent magnet 4-2 is the movable axis Z side.

  Further, the second stator 5 has a magnetic pole direction orthogonal to the movable axis Z, and each magnetic pole direction is the same direction, and the movable element extends in a direction orthogonal to the movable axis Z across the movable axis Z. 1 so as not to come into contact with 1. In this example, the south pole of the permanent magnet 5-1 is the movable axis Z side, and the north pole of the permanent magnet 5-2 is the movable axis Z side.

  That is, in the bistable moving device 102 of the second embodiment, the direction of the magnetic poles is different, but as with the bistable moving device 101 of the first embodiment, a set of permanent magnets 4- of the first stator 4. 1, 4-2 and the pair of permanent magnets 5-1 and 2 of the second stator 5 are arranged so that the magnetic poles facing each other in the direction of the movable axis of each permanent magnet are different from each other. It is arranged on one side and the other side in the direction of the movable axis with being sandwiched.

  Also in the configuration of the second embodiment, the length 1 of the movable element 1 in the movable axis direction is the permanent length of the first stator 4 arranged on both sides of the movable axis direction with the movable element 1 interposed therebetween. The opposing surface distance L between the magnets 4-1 and 4-2 and the permanent magnets 5-1 and 5-2 constituting the second stator 5 is set to be equal to or less.

  Other configurations are the same as those of the bistable moving device 101 of the first embodiment, and the description of the bistable moving device 102 of the second embodiment is omitted. A similar operation is performed.

  In the configuration shown in FIG. 8, one set of permanent magnets 4-1 and 4-2 of the first stator 4 and one set of permanent magnets 5-1 and 5-2 of the second stator 5 are provided. As shown in FIG. 9, the yoke 4a that connects the surface of the pair of permanent magnets 4-1 and 4-2 in the direction opposite to the movable axis Z is made movable by the pair of permanent magnets 5-1 and 5-2. You may make it arrange | position the yoke 5a which connects the surface of the direction opposite to the axis | shaft Z. FIG.

  As shown in FIG. 10, in the configuration shown in FIG. 9, one set of permanent magnets 4-1 and 4-2 extends to the movable element 1 side parallel to the movable axis Z on the surface on the movable axis Z side. The yokes 4b and 4c may be arranged such that the yokes 5b and 5c extending to the movable element 1 side in parallel with the movable axis Z are disposed on the surface of the movable magnet Z side of the pair of permanent magnets 5-1 and 5-2. Good. In the configuration shown in FIG. 10, the yokes 4a and 5a that connect the surfaces in the direction opposite to the movable axis Z are not necessarily provided.

  As shown in FIG. 11, in the configuration shown in FIG. 8, the permanent magnet 4-1 is omitted from the first stator 4, only the permanent magnet 4-2 is used as the first stator 4, and the second The permanent magnet 5-2 may be omitted from the stator 5 and only the permanent magnet 5-1 may be used as the second stator 5.

  Although not shown, the permanent magnet 4-2 is omitted from the first stator 4, only the permanent magnet 4-1 is used as the first stator 4, and the second stator 5 to the permanent magnet 5 is omitted. -1 may be omitted and only the permanent magnet 5-2 may be used as the second stator 5.

  That is, the permanent magnet having the magnetic pole direction orthogonal to the movable axis Z is separated so as not to contact the movable element 1 in the direction orthogonal to the movable axis Z, and the movable element is arranged on both sides of the movable element 1 in the movable axis direction. The magnetic poles for the other one may be arranged so that the magnetic poles with respect to the other are the same.

[Embodiment 3]
In the bistable moving devices 101 and 102 according to the first and second embodiments, the first stator 4 is a set of permanent magnets 4-1 and 4-2, and the second stator 5 is a set of permanent magnets 5. -1,5-2. On the other hand, in the bistable movement apparatus 103 of Embodiment 3, as shown in FIG. 12, the 1st stator 4 is made into the cylindrical permanent magnet 4-0, and the 2nd stator 5 is cylindrical. Permanent magnet 5-0. FIG. 13 is a cross-sectional view taken along the line CC in FIG.

  In the bistable moving device 103 of the third embodiment, the first stator 4 is arranged in a radial direction having an inner diameter so that the first stator 4 is substantially aligned with the movable axis Z and does not contact the movable element 1. The cylindrical permanent magnet 4-0. In this example, as shown in FIG. 13, the upper surface of the inner diameter facing the movable axis Z of the cylindrical permanent magnet 4-0 is the N pole, and the lower surface is the S pole. .

  Further, the second stator 5 is disposed so that the center thereof is aligned with the movable axis Z, and is a cylindrical permanent magnet 5-0 that is magnetized in the radial direction and has an inner diameter that does not contact the movable element 1. Has been. In this example, as shown in FIG. 13, the upper surface of the inner diameter facing the movable axis Z of the cylindrical permanent magnet 5-0 is the S pole and the lower surface is the N pole. .

  That is, in the bistable moving device 103 of the third embodiment, the shape of the permanent magnet is different, but the cylindrical shape of the first stator 4 is the same as that of the bistable moving devices 101 and 102 of the first and second embodiments. The permanent magnet 4-0 and the cylindrical permanent magnet 5-0 of the second stator 5 sandwich the mover 1 so that the magnetic poles facing each other in the direction of the movable axis of the permanent magnets have different polarities. They are arranged on one side and the other side in the direction of the movable axis.

  Also in the configuration of the third embodiment, the length 1 of the movable element 1 in the direction of the movable axis is a cylinder constituting the first stator 4 disposed on both sides of the movable axis with the movable element 1 interposed therebetween. The distance between the opposing surfaces of the cylindrical permanent magnet 5-0 and the cylindrical permanent magnet 5-0 constituting the second stator 5 is equal to or less than L.

  Other configurations are the same as those of the bistable moving devices 101 and 102 of the first and second embodiments, and the description of the bistable moving device 103 of the third embodiment is also omitted, although the description is omitted. Operations similar to those of the bistable moving devices 101 and 102 are performed.

[Mover rotating means]
In the bistable moving devices 101, 102, and 103 according to the first, second, and third embodiments, the mover rotating means 8 (8A) is composed of a solenoid type electromagnetic coil 6 and L-shaped yokes 7-1 and 7-2. However, such a configuration is not necessarily required.

  For example, as shown in FIG. 14, a pair of solenoid type electromagnetic coils 6-1 and 6-2 arranged with the axis of the movable shaft Z substantially aligned and the ends of the core facing each other. The mover rotating means 8 may be constituted by the yoke 7 that connects the other ends of the cores of the set of solenoid type electromagnetic coils 6-1 and 6-2. In this mover rotating means 8 (8B), one end of the core of one set of solenoid type electromagnetic coils 6-1 and 6-2 is opposed to the mover 1 from the direction substantially perpendicular to the movable axis Z. Yes.

  Further, as shown in FIG. 15, in the configuration shown in FIG. 1, the centers and movable shafts of the permanent magnets 5-1 and 5-2 (4-1 and 4-2) constituting the stator 5 (4). A line L1 that connects Z in a direction orthogonal to Z, and a line L2 that connects the centers of the ends of L-shaped yokes 7-1 and 7-2 facing each other with the mover 1 in a direction substantially orthogonal to the movable axis Z May be crossed. In this case, the crossing angle θ is preferably in the range of 0 ° to 45 ° when viewed from the movable axis direction.

  Further, as shown in FIG. 16, the center of the permanent magnets 5-1 and 5-2 (4-1 and 4-2) constituting the stator 5 (4) is movable with the configuration shown in FIG. A line L1 connecting the axes Z in a direction orthogonal to the axis Z, and a line L2 connecting the axes of the cores of the solenoid type electromagnetic coils 6-1 and 6-2 facing each other with the mover 1 in a direction substantially orthogonal to the movable axis Z May be crossed. Also in this case, the crossing angle θ is preferably in the range of 0 ° to 45 ° when viewed from the movable axis direction.

  Further, as shown in FIG. 17, in the configuration shown in FIG. 1, the ends of L-shaped yokes 7-1 and 7-2 facing each other with the mover 1 sandwiched from the direction substantially orthogonal to the movable axis Z. You may make it the line L2 which connects the center of a part, and the movable axis Z not intersect. The same applies to the configuration shown in FIG.

  Further, as shown in FIG. 18, in the configuration shown in FIG. 14 as well, the cores of solenoid type electromagnetic coils 6-1 and 6-2 facing each other with the movable element 1 sandwiched from the direction substantially orthogonal to the movable axis Z. Alternatively, the line L2 connecting the axes and the movable axis Z may not be crossed. The same applies to the configuration shown in FIG.

  Further, as shown in FIG. 19, in the configuration shown in FIG. 1, ends of L-shaped yokes 7-1 and 7-2 facing each other with the mover 1 sandwiched from a direction substantially orthogonal to the movable axis Z. The center of the portion may be shifted to both sides of the mover 1 within a plane orthogonal to the movable axis Z. The same applies to the configurations shown in FIGS.

  Further, as shown in FIG. 20, even in the configuration shown in FIG. 14, the cores of the solenoid type electromagnetic coils 6-1 and 6-2 facing each other with the mover 1 sandwiched from the direction substantially orthogonal to the movable axis Z. May be shifted to both sides of the mover 1 within a plane orthogonal to the movable axis Z. The same applies to the configurations shown in FIGS.

  Further, as shown in FIG. 21, a rotary lever 9 is attached to the shaft 2, and a mechanical force (rotational torque) is applied to the rotary lever 9 from the outside to rotate the mover 1. You may make it replace the position of. In this configuration, the mover rotating means 8 (8C) is constituted by the rotating lever 9 and means for applying a mechanical force to the rotating lever 9 from the outside. Although not shown in FIG. 21, as a means for applying a mechanical force to the rotary lever 9 from the outside, an actuator such as a manual or a motor can be considered.

  Further, as shown in FIG. 22, a set of permanent magnets 10-1 and 10-2 for generating a rotational force is provided so that the mover 1 can move forward and backward from a direction substantially orthogonal to the movable axis Z. Also good.

  In the example shown in FIG. 22, the permanent magnet 10-1 for generating the rotational force is provided on the upper side of the mover 1 with the S pole as the mover 1 side, and the S pole is moved as the permanent magnet 10-2 for generating the rotational force. By providing the push button 11-1 and the coil spring 12-1 to the permanent magnet 10-1 for generating the rotational force, provided on the lower side of the mover 1 as the child 1 side, the permanent magnet 10- for generating the rotational force is provided. 1 is movable forward and backward with respect to the mover 1, and the push button 11-2 and the coil spring 12-2 are attached to the permanent magnet 10-2 for generating rotational force, whereby the permanent magnet 10-2 for generating rotational force is provided. Is movable forward and backward with respect to the mover 1.

  In the mover rotating means 8 (8D) using the permanent magnets 10-1 and 10-2 for generating the rotating force, the rotating force is generated when the mover 1 is magnetically attracted to the first stator 4. When the permanent magnet 10-1 for use is moved closer to the mover 1, the magnetic pole (S pole) facing the mover 1 of the permanent magnet 10-1 for generating rotational force and one of the movers 1 (S pole) ) And magnetic attraction with the other magnetic pole (N pole), the mover 1 rotates and its rotation angle position changes from the first rotation angle position (0 ° position) to the second rotation angle. Switch to position (180 ° position).

  Further, when the mover 1 is magnetically attracted to the second stator 5 and the permanent magnet 10-2 for generating rotational force is brought close to the mover 1, the permanent magnet 10- for generating rotational force is used. The mover 1 is rotated by the magnetic repulsion between the magnetic pole (S pole) facing the mover 1 and the one magnetic pole (S pole) of the mover 1 and the magnetic attraction of the other magnetic pole (N pole). Then, the rotation angle position is switched from the second rotation angle position (180 ° position) to the first rotation angle position (0 ° position).

[About the mover]
In the first, second, and third embodiments described above, the mover 1 (1A) is configured by one permanent magnet (columnar permanent magnet). However, the mover 1 may be configured by a plurality of permanent magnets. Good. The example which comprised the needle | mover 1 with the some permanent magnet is shown in FIG. 23 and FIG.

  In the example shown in FIG. 23, the mover 1 is composed of three columnar permanent magnets 1-1, 1-2, 1-3, and the permanent magnet having a long length (length in the movable axis direction). 1-1 is arranged at the center of the movable axis direction, and permanent magnets 1-2 and 1-3 having a short length are arranged on both sides of the permanent magnet 1-1.

  In this mover 1 (1B), the permanent magnet 1-1 and the permanent magnets 1-2 and 1-3 have the same diameter (length in the opposite magnetic pole direction), and the permanent magnet 1-1 and the permanent magnet. 1-2 is coupled with the nonmagnetic coupling portion 1a interposed therebetween, and the permanent magnet 1-1 and the permanent magnet 1-3 are coupled with the nonmagnetic coupling portion 1b interposed therebetween.

  Thus, when the mover 1 is composed of a plurality of permanent magnets, it is possible to reduce the volume of the permanent magnets and reduce the cost and weight when the length and diameter of the permanent magnets are large. . In the mover 1 (1B), the central permanent magnet 1-1 is a permanent magnet for rotating the mover, and the permanent magnets 1-2 and 1-3 on both sides are moved in the direction of the movable axis of the mover. Permanent magnet for holding.

  Also in the example shown in FIG. 24, the mover 1 is composed of three columnar permanent magnets 1-1, 1-2, and 1-3, and the permanent magnet has a long length (length in the movable axis direction). 1-1 is arranged at the center of the movable axis direction, and permanent magnets 1-2 and 1-3 having a short length are arranged on both sides of the permanent magnet 1-1.

  In this mover 1 (1C), the permanent magnet 1-1 and the permanent magnets 1-2 and 1-3 have different diameters (lengths in the opposite magnetic pole direction), and the diameter of the permanent magnet 1-1 is permanent magnet. It is made larger than the diameter of 1-2 and 1-3. Then, the permanent magnet 1-1 and the permanent magnet 1-2 are coupled with the nonmagnetic coupling portion 1a ′ interposed therebetween, and the permanent magnet 1-1 and the permanent magnet 1-3 are coupled with the nonmagnetic coupling portion 1b ′ sandwiched therebetween. Are combined.

  In the mover 1 (1C), the central permanent magnet 1-1 is a permanent magnet for rotating the mover, and the permanent magnets 1-2 and 1-3 on both sides are for moving and holding the mover in the movable axis direction. Of permanent magnets. In this case, since the diameter of the permanent magnet 1-1 is larger than the diameter of the permanent magnets 1-2 and 1-3, the mover 1 can be rotated (magnetic pole reversal) with a small force.

  For example, in the configuration shown in FIG. 1, when the holding force in the direction of the movable axis of the mover 1 (1A) is increased, a large force is required to rotate the mover 1 as well. Therefore, energy is saved as the movable element 1 (1C) having the configuration shown in FIG.

  In each of the above-described embodiments, the permanent magnet constituting the mover 1 is a columnar magnet. However, the permanent magnet is not necessarily a columnar magnet, and may be a cylindrical permanent magnet or a square magnet. It is good.

  For example, in the configuration shown in FIG. 24, when the permanent magnets 1-1, 1-2, and 1-3 constituting the mover 1 (1C) are cylindrical permanent magnets, the same as the columnar permanent magnets. The diameters of the magnetic poles may be different, but in the case of a square magnet, the distance between the opposing magnetic poles (the length in the opposite magnetic pole direction) is made different.

  Further, in each of the above-described embodiments, the permanent magnet constituting the mover 1 has two magnetic poles. However, four or more magnetic poles (for example, cylindrical radial magnetization (in the case of a cylinder, there are also magnetic poles on the inner peripheral side). Therefore, a multi-pole permanent magnet of 8 magnetic poles)) may be used.

  FIG. 25 shows a configuration diagram in the case where the mover 1 is a columnar permanent magnet and the columnar permanent magnet has four magnetic poles. 25 (a) is a front view, FIG. 25 (b) is a DD cross-sectional view in FIG. 25 (a), and FIG. 25 (c) is an EE cross-sectional view in FIG. 25 (a). . 25, the shaft 2 and the mover rotating means 8 shown in FIG. 1 are omitted.

  In this example, the circumferential direction of the mover 1 is divided into four, and magnetic poles are formed on adjacent circumferential surfaces at intervals of 90 °. In this example, an S pole is formed on the first circumferential surface (upper surface in FIG. 25B) S1 adjacent to each other at intervals of 90 °, and a second surface (left surface in FIG. 25B) S2. An N pole is formed on the third surface (lower surface in FIG. 25B) S3, and an N pole is formed on the fourth surface (right surface in FIG. 25B) S4. doing.

  In the case of using the four-pole movable element 1 (1D), in the first stator 4, the magnetic pole directions of the permanent magnets 4-1 and 4-2 are set to the same direction with respect to the other. Similarly, in the second stator 5, the magnetic pole directions of the permanent magnets 5-1 and 5-2 are set to the same direction with respect to the other.

  25B and 25C, permanent magnets 4-3 and 4-4 are provided for the first stator 4, and permanent magnets 5-3 and 5 are provided for the second stator 5, as indicated by dotted lines. -4 may be added. Also in this case, the magnetic pole directions of the permanent magnets 4-3 and 4-4 and the magnetic pole directions of the permanent magnets 5-3 and 5-4 have the same magnetic pole direction with respect to the other.

  However, in the configuration in which the permanent magnet of the mover 1 is a multi-pole having four or more magnetic poles, the different poles are within 90 ° when they are moved in the other direction due to an impact. It is easy to rotate with respect to 180 °, and it is easy to latch by mistake in the other direction.

[Others]
FIG. 26 shows a configuration including a mechanism for transmitting the force in the direction of the movable axis of the mover 1 to an external driven body. In FIG. 26, the first stator 4, the second stator 5, and the mover rotating means 8 shown in FIG. 1 are omitted.

  In FIG. 26, reference numerals 13-1 and 13-2 denote bushes that define the movable axis direction of the movable element 1 and hold the movable element 1 rotatably about the movable axis Z, and are shafts connected to the movable element 1. 2 is supported. The positions of the bushes 13-1 and 13-2 are fixed. Reference numeral 14 denotes an external operated body (for example, a valve body of a shut-off valve) that receives a force in the direction of the movable axis of the mover 1, and a plurality of pins provided on the back side of the holder 15 that holds the bush 13-1. The movement in the direction of the movable axis is guided using 16 as a guide, and the movement in the rotational direction about the movable axis Z is regulated by the pin 16.

  The shaft 2 (2-1) connected to one side of the mover 1 passes through the bush 13-1, passes through the through hole 14 a at the center of the operated body 14, and reaches the inside of the operated body 14. , A retaining ring 17 is attached to the tip thereof to form a rotating sliding portion. The shaft 2 (2-2) connected to the other side of the mover 1 passes through the bush 13-2, and a stopper member 18 is fixed to the tip thereof. The stopper member 18 is provided with a movement range restricting member 19 that restricts the movement range of the stopper member 18 in the direction of the movable axis in one direction and the other.

  The state shown in FIG. 26 is a state in which the rotation angle position of the mover 1 is at the second rotation angle position (180 ° position), and the mover 1 is magnetically attracted to the second stator 5. Is shown.

  From this state, when the mover rotating means 8 is operated and the mover 1 is rotated about the movable axis Z, that is, the mover 1 is moved from the second rotation angle position (180 ° position) to the first rotation angle position. When returned to the (0 ° position), a magnetic repulsive force is generated between the mover 1 and the second stator 5, the mover 1 moves away from the second stator 5, and the first stator 4 Together with the magnetic attractive force generated between the movable element 1 and the movable element 1 starts to move to one side (left direction) in the movable axis direction.

  At this time, the tip end of the shaft 2 (2-1) connected to the mover 1 rotates inside the driven body 14 as a rotating sliding portion, and therefore the rotational force about the movable axis Z of the mover 1 is used. Is transmitted to the driven body 14. That is, even if the shaft 2 (2-1) connected to the mover 1 rotates, the operated body 14 does not rotate.

  When the mover 1 moves away from the second stator 5 and starts to move to one side (left direction) in the movable axis direction, the movable body 14 is pushed by the tip of the shaft 2 (2-1), and the operated body 14 is pin 16. Move left while being guided by. That is, the force to one side (left direction) of the movable element 1 in the movable axis direction is transmitted to the external driven body 14 via the shaft 2 (2-1), and the driven body 14 is guided to the pin 16. However, it moves to one side (left direction) of the movable axis direction.

  The movement of the actuated body 14 is stopped by the stopper member 18 fixed to the tip of the shaft 2 (2-2) coming into contact with the restriction surface 19a on one side of the movement range restriction member 19 in the movable axis direction. . That is, the movable range of the movable element 1 toward one side (left direction) in the movable axis direction is limited.

  From this state, the mover rotating means 8 is operated to rotate the mover 1 about the movable axis Z. That is, the mover 1 is moved from the first rotation angle position (0 ° position) to the second rotation angle position. When returned to the (180 ° position), a magnetic repulsive force is generated between the mover 1 and the first stator 4, the mover 1 moves away from the first stator 4, and the second stator 5. In combination with the magnetic attractive force generated between the movable element 1 and the movable element 1 starts to move to the other side (right direction) in the movable axis direction.

  At this time, the tip end of the shaft 2 (2-1) connected to the mover 1 rotates inside the driven body 14 as a rotating sliding portion, and therefore the rotational force about the movable axis Z of the mover 1 is used. Is transmitted to the driven body 14. That is, even if the shaft 2 (2-1) connected to the mover 1 rotates, the operated body 14 does not rotate.

  When the mover 1 moves away from the first stator 4 and starts moving to the other side (right direction) of the movable axis direction, it is pushed by the retaining ring 17 attached to the tip of the shaft 2 (2-1), The driven body 14 moves to the right while being guided by the pin 16. In other words, the force to the other side (right direction) of the movable element 1 in the movable axis direction is transmitted to the external driven body 14 via the shaft 2 (2-1), and the driven body 14 is guided to the pin 16. While moving to the other side of the movable axis direction (right direction).

  The movement of the actuated body 14 is stopped by the stopper member 18 fixed to the tip of the shaft 2 (2-2) coming into contact with the restriction surface 19b on the other side in the movable axis direction of the movement range restriction member 19. . That is, the movable range of the movable element 1 toward the other side (right direction) in the movable axis direction is limited.

  In FIG. 26, the retaining ring 17 is attached to the tip of the shaft 2 (2-1) to form a rotary sliding part. However, as shown in FIG. Good.

  Moreover, in each embodiment mentioned above, a permanent magnet consists of rare earth magnets, such as neodymium and samarium cobalt, or a ferrite magnet, for example. The yoke is made of a soft magnetic material (for example, an electromagnetic steel plate, electromagnetic soft iron, permalloy, etc.) having a large saturation magnetic flux density and magnetic permeability, a small coercive force, and a small magnetic hysteresis. The nonmagnetic shaft is made of, for example, aluminum, SUS316 (L), brass, or the like.

[Extension of the embodiment]
The present invention has been described above with reference to the embodiment. However, the present invention is not limited to the above embodiment. Various changes that can be understood by those skilled in the art can be made to the configuration and details of the present invention within the scope of the technical idea of the present invention.

  DESCRIPTION OF SYMBOLS 1 (1A-1D) ... Movable element, 1-1 to 1-3 ... Permanent magnet, 1a, 1b, 1a ', 1b' ... Connection part, 2 (2-1, 2-2) ... Shaft, 3 ... Movable Body, 4 ... 1st stator, 4-0-4-4 ... Permanent magnet, 4a-4e ... Yoke, 5 ... 2nd stator, 5-0-5-4 ... Permanent magnet, 5a-5e ... Yoke, 6, 6-1, 6-2 ... solenoid type electromagnetic coil, 7, 7-1, 7-2 ... yoke, 8 (8A to 8D) ... mover rotating means, 9 ... rotating lever, 10-1, 10-2: Permanent magnet for generating rotational force, 11-1, 11-2 ... push button, 12-1, 12-2 ... coil spring, 13-1, 13-2 ... bush, 14 ... actuated body, 15 ... Holder, 16 ... Pin, 17 ... Retaining ring, 18 ... Stopper member, 19 ... Movement range restricting member, 19a, 19b ... Restricting surface, 20 ... Bearing, 101 102, 103 ... bistable type mobile devices.

Claims (25)

A mover comprising a permanent magnet that is movable in the direction of the movable axis and is rotatably held around the movable axis, and in which a magnetic pole is disposed opposite to the movable axis in a direction perpendicular to the movable axis;
A mover that rotates the mover and switches the rotation angle position between the first rotation angle position and the second rotation angle position, thereby switching the positions of the opposing magnetic poles of the permanent magnet of the mover. Rotation means;
When the mover is located on one side in the movable axis direction with the mover in between, and the mover is at the first rotation angle position, the mover is magnetically attracted and held, and the mover is at the second rotation angle position. A first stator composed of a member including a permanent magnet that repels the mover; and
When the mover is located on the other side in the movable axis direction with the mover in between and at the second rotation angle position, the mover is magnetically attracted and held, and the mover is in the first rotation angle position. And a second stator composed of a member including a permanent magnet that magnetically repels the mover. The bistable moving device according to claim 1, wherein
The mover is
A bistable movement device, characterized in that it is connected in the direction of the movable axis of a non-magnetic shaft that is movable in the direction of the movable axis and is rotatably held around the movable axis. The bistable moving device according to claim 1 or 2,
The permanent magnet of the said needle | mover is made into the column or cylinder shape. The bistable movement apparatus characterized by the above-mentioned. In the bistable movement apparatus as described in any one of Claims 1-3,
The first stator and the second stator are:
The magnetic pole directions are parallel to the movable shaft, the magnetic pole directions are opposite to the other, and are spaced apart so as not to contact the movable element in a direction perpendicular to the movable shaft across the movable shaft. A set of permanent magnets arranged
The set of permanent magnets of the first stator and the set of permanent magnets of the second stator are such that the magnetic poles of the permanent magnets facing each other in the direction of the movable axis are different from each other. A bistable movement device characterized by being arranged on one side and the other side in the direction of the movable axis with a mover interposed therebetween. The bistable moving device according to claim 4, wherein
Each of the set of permanent magnets of the first stator and the set of permanent magnets of the second stator is provided with a yoke for connecting the surface of the set of permanent magnets opposite to the mover. A bistable moving device characterized by that. The bistable moving device according to claim 4 or 5,
The set of permanent magnets of the first stator and the set of permanent magnets of the second stator are respectively provided with yokes extending toward the movable shaft on the surface of the mover. Bistable moving device characterized. In the bistable movement apparatus as described in any one of Claims 1-3,
The first stator and the second stator are:
The magnetic pole direction is a direction perpendicular to the movable axis, the magnetic pole directions are the same direction, and are spaced apart so as not to contact the movable element in a direction perpendicular to the movable axis across the movable axis. A set of permanent magnets,
The set of permanent magnets of the first stator and the set of permanent magnets of the second stator are such that the magnetic poles of the permanent magnets facing each other in the direction of the movable axis are different from each other. A bistable movement device characterized by being arranged on one side and the other side in the direction of the movable axis with a mover interposed therebetween. The bistable movement device according to claim 7,
Each of the set of permanent magnets of the first stator and the set of permanent magnets of the second stator is provided with a yoke that connects surfaces of the set of permanent magnets opposite to the movable shaft. A bistable moving device characterized by that. In the bistable movement apparatus as described in any one of Claims 1-3,
The first stator and the second stator are:
A cylindrical permanent magnet that is arranged with the movable shaft and the center approximately aligned, and is radially magnetized with an inner diameter that does not contact the mover;
The cylindrical permanent magnet of the first stator and the cylindrical permanent magnet of the second stator are arranged so that the magnetic poles of the permanent magnets facing each other in the direction of the movable axis are different from each other. A bistable movement device characterized by being arranged on one side and the other side in the direction of the movable axis with a mover interposed therebetween. In the bistable movement apparatus as described in any one of Claims 1-9,
The permanent magnet of the mover is
The length in the movable axis direction is opposed to the permanent magnet constituting the first stator and the permanent magnet constituting the second stator arranged on both sides in the movable axis direction across the mover. A bistable moving device characterized in that the distance is less than or equal to the distance between surfaces. In the bistable movement apparatus as described in any one of Claims 1-10,
The mover rotating means is
A bistable moving device characterized in that a mechanical force is applied from the outside to rotate the mover, and the positions of the opposing magnetic poles of the permanent magnet of the mover are switched. In the bistable movement apparatus as described in any one of Claims 1-10,
The mover rotating means is
A bistable movement characterized in that a magnetic field is applied to the permanent magnet of the mover from a direction substantially orthogonal to the movable shaft to rotate the mover, and the positions of the opposing magnetic poles of the permanent magnet of the mover are switched. apparatus. The bistable movement device according to claim 12,
The mover rotating means is
A solenoid type electromagnetic coil, and first and second yokes having one end connected to or integrated with one end and the other end of the core of the solenoid type electromagnetic coil;
The other ends of the first and second yokes are
The bistable moving device is characterized by facing the permanent magnet of the mover from a direction substantially orthogonal to the movable shaft. The bistable movement device according to claim 12,
The mover rotating means is
First and second solenoid-type electromagnetic coils arranged with the axial cores substantially aligned across the movable shaft and with one end of the core facing each other;
A yoke for connecting the other ends of the cores of the first and second solenoid type electromagnetic coils,
One end of the core of the first and second solenoid type electromagnetic coils is
The bistable moving device is characterized by facing the permanent magnet of the mover from a direction substantially orthogonal to the movable shaft. In the bistable movement apparatus as described in any one of Claims 1-10,
The mover rotating means is
A permanent magnet for generating a first and a second rotational force provided to be movable back and forth from a direction substantially orthogonal to the movable shaft with respect to the permanent magnet of the mover;
When the movable element is magnetically attracted to the first stator, the first rotational force is generated when the permanent magnet for generating the first rotational force is brought close to the permanent magnet of the movable element. And the rotational angle position of the mover by the magnetic repulsion between the magnetic pole of the permanent magnet facing the mover and one of the permanent magnet of the mover and the magnetic attraction of the other magnetic pole. Is switched from the first rotation angle position to the second rotation angle position,
When the movable element is magnetically attracted to the second stator, the second rotational force is generated when the second rotational force generating permanent magnet is brought close to the permanent magnet of the movable element. And the rotational angle position of the mover by the magnetic repulsion between the magnetic pole of the permanent magnet facing the mover and one of the permanent magnet of the mover and the magnetic attraction of the other magnetic pole. Is switched from the second rotation angle position to the first rotation angle position. The bistable moving device according to claim 13,
The line connecting the center of the permanent magnet constituting the stator and the movable axis in a direction orthogonal to the first axis, the second and the second opposing each other across the permanent magnet of the movable element from a direction substantially orthogonal to the movable axis. A bi-stable moving device characterized in that an angle of intersection with a line connecting the centers of the end portions of the yoke is in a range of 0 ° to 45 ° when viewed from the movable axis direction. The bistable moving device according to claim 14,
The line connecting the center of the permanent magnet constituting the stator and the movable axis in a direction orthogonal to the first axis, the second and the second opposing each other across the permanent magnet of the movable element from a direction substantially orthogonal to the movable axis. A bi-stable moving device characterized in that an angle of intersection with a line connecting the cores of the solenoid type electromagnetic coil is in a range of 0 ° to 45 ° when viewed from the movable axis direction. The bistable moving device according to claim 13 or 16,
A line connecting the centers of the ends of the first and second yokes facing each other across a permanent magnet of the mover from a direction substantially perpendicular to the movable shaft does not intersect the movable shaft. Bistable moving device to do. The bistable movement device according to claim 14 or 17,
The movable shaft does not intersect a line connecting the cores of the cores of the first and second solenoid type electromagnetic coils facing each other across the permanent magnet of the movable element from a direction substantially orthogonal to the movable shaft. Bistable moving device characterized by The bistable movement device according to any one of claims 13, 16, and 18,
The centers of the ends of the first and second yokes facing each other across the permanent magnet of the mover from a direction substantially orthogonal to the movable shaft are on both sides of the mover within a plane orthogonal to the movable shaft. A bistable moving device characterized by In the bistable movement apparatus as described in any one of Claim 14, 17, and 19,
The cores of the cores of the first and second solenoid type electromagnetic coils facing each other across the permanent magnet of the mover from a direction substantially orthogonal to the movable shaft are movable within a plane orthogonal to the movable shaft. Bistable moving device characterized in that it is shifted to both sides of the child. In the bistable movement apparatus as described in any one of Claims 1-21,
The bistable movement device, wherein the mover includes a plurality of permanent magnets arranged with magnetic poles facing each other with the movable shaft sandwiched in a direction orthogonal to the movable shaft. The bistable movement device according to claim 22,
The mover is
A first permanent magnet located approximately in the center of the movable axis direction;
Second and third permanent magnets located on both sides in the movable axis direction across the first permanent magnet,
The length of the first permanent magnet in the opposite magnetic pole direction is longer than the length of the second and third permanent magnets in the opposite magnetic pole direction. In the bistable movement apparatus as described in any one of Claims 1-23,
Means for suppressing the transmission of rotational force about the movable axis of the mover to the driven body while transmitting the force in the movable axis direction of the mover mainly to an external driven body. Bistable moving device characterized. In the bistable movement apparatus as described in any one of Claims 1-24,
A bistable movement device comprising: means for limiting a movable range of the movable element in a movable axis direction.