JP5309293B2 - Power transmission device - Google Patents

Description

  The present invention relates to a power transmission device that transmits power in a non-contact manner using a magnetic action, and more particularly to a power transmission device that can turn on and off transmission of rotational driving force and linear motion driving force.

  An electromagnetic clutch using an electromagnet is known as a power transmission device capable of transmitting a rotational driving force using a magnetic action and controlling transmission of rotational torque (Patent Document 1). In addition, as a technology capable of controlling transmission torque with respect to a non-contact power transmission device using a magnetic repulsive force of magnetic force, a technology for controlling transmission torque by controlling an excitation current (Patent Document 2), an interval between facing surfaces of a rotating body (Patent Document 3) for controlling the transmission torque by changing the power, Technology for controlling the power transmission force by switching the magnetic circuit by inserting a magnet into the magnetic path (Patent Document 4), A technique (Patent Document 5) is disclosed in which the transmission torque is controlled by switching the rotating bodies facing each other.

  In addition, as a power transmission device that can transmit power between a rotary motion and a linear motion in a non-contact manner by using magnetic action, two cylindrical magnetic bodies having spiral convex magnetic bodies on the inner and outer surfaces of the cylinder are opposed to each other. The technique (patent documents 6 and 7) to make is disclosed.

JP 2006-97738 A JP 2007-239765 A JP 2008-51264 A JP-A-2005-351336 JP 2004-347027 A JP-A-11-31615 Japanese Patent Laid-Open No. 10-9361

  In the technique disclosed in Patent Literature 1, contact-type power transmission is a problem, so that deterioration of the contact surface is a problem, and it is necessary to continuously flow current when the transmission of the rotational driving force is on. In the technique disclosed in Patent Document 2, it is necessary to keep current flowing whenever the rotation driving force is transmitted. The techniques disclosed in Patent Techniques 3, 4, and 5 are techniques for controlling torque by moving a component part in order to control transmission torque, but the moving component part rotates integrally with a rotating body. Therefore, when the transmission torque is controlled, it may be necessary to move the rotating one, which is not preferable because the configuration becomes complicated and the handling becomes difficult.

  In the techniques disclosed in Patent Documents 6 and 7, since the power is always transmitted, it is difficult to control the transmission force.

  The present invention has been made in view of such problems, and enables the magnetic coupling and decoupling of the driving side and the driven side (first moving body, second moving body), thereby enabling power transmission ON and An object of the present invention is to provide a non-contact power transmission device that can be turned off and that does not require power consumption when the transmission force is either on or off.

  The above object is achieved by the following power transmission device.

  Transmission force ON / OFF control in which two soft magnetic moving bodies (first moving body and second moving body) having a plurality of convex portions (convex magnetic body portions) are arranged to face each other and magnetic flux is generated from the surface. The movable body is opposed to the surface of the second moving body opposite to the surface facing the first moving body, and the position of the moving body for transmitting force ON / OFF control is set to the second moving body. The first moving body and the second moving body are configured such that the magnetic flux is recirculated only by the second moving body by moving relative to the first moving body or between the first moving body and the second moving body. It is the power transmission device which has the structure which switches the transmission force between.

  More specifically, the power transmission device has the following configuration.

(I) The power transmission device according to claim 1 (ii) The power transmission device according to claim 2 According to these power transmission devices, the components of the second moving body are spaced apart via a plurality of non-magnetic materials. Since the transmission force ON / OFF control moving body moves the magnetic flux only by the second moving body, or the first moving body and the second moving body. It is possible to achieve a purpose of the present invention.

  Since the transmission force ON / OFF control moving body has magnetic flux in and out of the surface of the second moving body and moves relatively along the surface of the second moving body, the direction of the magnetic flux coincides with the moving direction. Therefore, the force required for movement can be reduced.

  Further, the transmission torque can be controlled without taking a large moving distance of the transmission body for the transmission force ON / OFF control.

  It is preferable that the moving body for transmission force ON / OFF control is configured to switch the magnetic flux in and out in a cycle of the tandem arrangement of the constituent bodies of the second moving body according to the position in the central axis direction. Although it is a similar expression, the magnetic poles may appear on the surface on the side facing the second moving body so that the magnetic poles are inverted at the tandem arrangement period of the constituents of the second moving body.

  The length of the first moving body in the central axis direction is equal to or greater than the sum of the length of the second moving body and the length of two intervals between the second moving body. This is preferable from the viewpoint of increasing the time transmission force.

  The facing surface 1-2 is a conceptual surface that exists in a space where the first moving body and the second moving body face each other and divides them.

(Iii) The power transmission device according to claim 3 The object of the present invention can also be achieved by this power transmission device.

  Two constituent parts each having a convex magnetic part and having a length in the central axis direction of z2 / 2 are arranged in tandem in the central axis direction via a non-magnetic substance at intervals of z20 (where z20 = z0-z2). 1 unit of the second moving body that is arranged in a row in the central axis direction is integrally configured, and the length in the central axis direction is z3 (where z3 ≦ z0), and the central axis One unit of the transmission force ON / OFF control moving body in which magnetic flux enters and exits from the top and bottom of the direction, the direction of magnetic flux entering and exiting from the top and bottom of each unit is an odd number from the bottom unit Since the unit and the even-numbered unit are arranged in tandem so as to be substantially reversed, the transmission force ON / OFF control moving body moves the magnetic flux back only by the second moving body. , The first athletic body Since it is possible or to span between the beauty second motion body, it is possible to achieve the object of the present invention.

  The second moving body is composed of a plurality of constituent bodies, and the constituent bodies are configured by a single constituent part or a combination of a plurality of constituent parts.

  From the viewpoint of further reducing the transmission force when transmission is OFF, the length of the second moving body in the central axis direction is preferably z2 / 2 to z3 / 2.

  From the viewpoint of increasing the transmission force when transmission is ON, or from the viewpoint of reducing the transmission force when transmission is OFF, each of the first moving body and the second moving body is located below or below the lowermost unit. It is preferable to have the extending portion in the central axis direction on or both.

  Moreover, it is preferable that it is z20 <= z3 from a viewpoint of making the transmission force at the time of transmission ON larger.

  Moreover, it is preferable that it is z20 <= z1 from a viewpoint of enlarging the transmission force at the time of transmission ON.

  Further, when the number of units arranged in the column is 2 or more, it is desirable that z1 ≦ z0 and z3 ≦ z0. More preferably, z1 and z3 are the same length as z0 (= z2 + z20) from the viewpoint of effective use of space and the viewpoint of increasing the transmission force when transmission is ON. Moreover, it is preferable also at the point of the labor reduction at the time of an assembly. From the viewpoint of further reducing the transmission force when transmission is OFF, it is preferable that z1 <z0. This is because the magnetic resistance passing through the first moving body can be increased when transmission is OFF. Further, from the viewpoint of increasing the transmission force when transmission is turned on, it is preferable that two or more units of the first moving body are arranged in tandem. However, when the number of tandem arrangements of the first moving body is one unit, z1 = Z0 and extending portions above and below the unit, and the overall length is preferably 2 · z20 + z2 or more.

  Also, one unit of the transmission force ON / OFF control moving body sandwiches the magnet magnetized in the direction of the central axis from above and below with a magnetic body, thereby generating magnetic flux from above and below the surface of the transmission force ON / OFF control moving body. You may make it go in and out. In this case, when constructing a moving body for transmission force ON / OFF control by arranging units in tandem, the magnetization direction is reversed upside down between the odd numbered unit and the even numbered unit counted from the lowest unit. It is simple because it is sufficient to use a magnet.

  Further, one unit of the transmission force ON / OFF control moving body is formed so as to hold two magnets magnetized in the inner circumferential direction and the outer circumferential direction with respect to the central axis via a non-magnetic body. The magnetic flux may be entered and exited from above and below the surface of the movable body for transmission force ON / OFF control. In this case, when constructing a moving body for transmission force ON / OFF control by arranging the units in tandem, the magnetization direction of the upper and lower magnets is switched between the odd-numbered unit and the even-numbered unit counted from the lowest unit. What is necessary is just to form.

(Iv) The power transmission device according to claim 4 According to this power transmission device, the first moving body is a rotating body and the second moving body is a linear moving body, and the power transmission between the rotational power and the linear power is possible. is there. In this case, the transmission force ON / OFF control moving body is configured to move together with the second moving body in order to transmit power even when the first moving body and the second moving body move relative to each other.

(V) The power transmission device according to claim 5 According to the power transmission device, the second moving body is a rotating body and the first moving body is a linear moving body, and the power transmission between the rotational power and the linear power is possible. is there.

(Vi) The power transmission device according to claim 6 According to this power transmission device, it is possible to transmit power between rotational powers using the first moving body as a rotating body and the second moving body as a rotating body.

(Vii) The power transmission device according to claim 7 According to the power transmission device, the first moving body and the second moving body face each other, and the convex magnetic body portion of the first moving body and It is possible to make a large area facing the convex magnetic body portion of the second moving body, and a larger power transmission is possible. The transmission force ON / OFF control moving body has a cylindrical shape, a cylindrical shape, an annular shape, or a combination thereof, and the central axis of the first moving body and the second moving body and the movement for transmission force ON / OFF control. It is preferable that the central axes of the body coincide. This is because the transmission force between the first moving body and the second moving body can be increased, and eddy current loss generated in the second moving body can be reduced.

  The driving side and the driven side (first moving body, second moving body) are magnetically coupled and the coupling between the driving side and the driven side can be released, or the transmission force can be controlled, and the transmission force is ON / It is possible to provide a non-contact power transmission device that does not require power consumption in any OFF state. It is possible to control the transmission force by moving the ON / OFF control moving body. When the second moving body performs a rotational movement, the ON / OFF control moving body does not necessarily have the second movement. Since it is not necessary to take a configuration that rotates together with the body, the power transmission between the first moving body and the second moving body can be controlled by moving the non-rotating ON / OFF control moving body in the rotation axis direction. Therefore, it is possible to obtain a power transmission device capable of controlling the transmission force with a simple configuration as compared with the configuration for moving the rotating object.

The perspective view of the power transmission device of 1st Embodiment The top view and sectional view of the power transmission device of a 1st embodiment Sectional drawing of the power transmission device of 1st Embodiment The perspective view of the power transmission device of 2nd Embodiment The top view and sectional drawing of the power transmission device of 2nd Embodiment Sectional drawing of the power transmission device of 2nd Embodiment The perspective view of the power transmission device of 3rd Embodiment The top view and sectional drawing of the power transmission device of 3rd Embodiment The perspective view of the power transmission device of 4th Embodiment The top view and sectional drawing of the power transmission device of 4th Embodiment The perspective view of the power transmission device of 5th Embodiment The top view and sectional drawing of the power transmission device of 5th Embodiment The perspective view of the power transmission device of 6th Embodiment The top view and sectional view of the power transmission device of a 6th embodiment The perspective view of the power transmission device of 7th Embodiment The top view and sectional drawing of the power transmission device of 7th Embodiment The perspective view of the power transmission device of 8th Embodiment The top view and sectional drawing of the power transmission device of 8th Embodiment The perspective view of the power transmission device of 9th Embodiment The top view and sectional drawing of the power transmission device of 9th Embodiment The perspective view of the power transmission device of 10th Embodiment The top view and sectional drawing of the power transmission device of 10th Embodiment The perspective view of the power transmission device of 11th Embodiment The top view and sectional drawing of the power transmission device of 11th Embodiment The perspective view of the power transmission device of 12th Embodiment The top view and sectional drawing of the power transmission device of 12th Embodiment The perspective view of the power transmission device of 13th Embodiment The top view and sectional drawing of the power transmission device of 13th Embodiment The perspective view of the power transmission device of 14th Embodiment The top view and sectional drawing of the power transmission device of 14th Embodiment The perspective view of the power transmission device of 15th Embodiment The top view and sectional drawing of the power transmission device of 15th Embodiment

  Hereinafter, the present invention will be described in detail with reference to the drawings. In order to accurately describe the shape, the overall shape may be described as a shape in which units having a length z0 as a shape unit are arranged in tandem. However, as long as the configuration meets the gist of the present invention. However, it is not necessarily configured for each unit. In addition, the lines that divide the unit may appear in the actual power transmission device as a material switching part, but may not appear when the objects between the units are integrally formed. . Further, when the power transmission device according to the present invention is manufactured, it is only necessary that the final form is the shape of the power transmission device according to the present invention, and the units formed for each unit are not necessarily stacked and arranged in tandem. It is not necessary to produce by.

  In addition, although the opposing surface 1-2 exists in the space which a 1st moving body and a 2nd moving body oppose, and is a conceptual surface which divides these, this is not illustrated.

(First embodiment)
One form of the power transmission device according to the present invention is shown in FIGS. The first moving body, the second moving body, and the transmission force ON / OFF control moving body are all axially symmetric, and their central axes coincide with each other, and the first moving body and the second moving body are convex. Each of the magnetic body portions is formed in a spiral shape, and the first moving body and the second moving body are opposed to each other by forming a facing surface (facing surface 1-2).

  The upper left figure in FIG. 1 is a perspective view of the entire power transmission device, and the lower figure is a perspective view of each of the first moving body, the second moving body, and the moving body for transmission force ON / OFF control in order from the left, and each is an integral structure These are combined to form the power transmission device shown in the upper left diagram of FIG.

  FIG. 2 is a plan view (upper view) and a cross-sectional view (lower view) showing a cross-sectional shape of a plane including the central axis. In the figure below, the left figure is when transmission is ON (power is transmitted between the first moving body and the second moving body), and the right figure is transmission OFF (no power is transmitted between the first moving body and the second moving body). Or a state in which only a small amount of power can be transmitted compared to the ON state). The arrows marked on the transmission force ON / OFF control moving body in the figure below indicate the magnetizing direction of the magnet. Also, the dotted line arrow schematically shows the flow of magnetic flux.

  FIG. 3 illustrates the configuration in the central axis direction and the configuration of the column arrangement as a shape in which units having the length z0 in the central axis direction as a shape unit are arranged in a column in the central axis direction.

  The shape shown in FIG. 1 and FIG. 2 shows a configuration in which a plurality of units, which are shape units, are arranged in tandem, and the top and bottom are cut out at appropriate positions for explanation (that is, the first moving body and the first unit). Two moving bodies are displayed for the length of 5 units each, and the moving body for transmission force ON / OFF control is displayed for 6 units), more continuous shape in the vertical direction of the page (each unit is further arranged in tandem vertically) Shape), or may be configured with a small number of units. In addition, even if the shape shown in FIG. 1 and FIG. 2 is used as it is, the effects of the present invention can be obtained.

  FIG. 3 schematically shows the main part of the cross-sectional view when transmission is ON. The shape in the central axis direction will be described in detail with reference to FIG. The length of one unit as a shape unit in the central axis direction is z0, and a plurality of the units are arranged in the central axis direction. Hereinafter, the (n) unit, which is the nth unit arranged in a column, will be described.

  One unit of the first moving body has a central axis direction on the inner surface (surface on the facing surface 1-2 side) of the cylindrical magnetic body whose length in the central axis direction is z1 (z1 ≦ z0), and the central axis direction is the pitch axis. A structure (1- (n)) including a plurality of spiral convex magnetic body portions at equal intervals in the circumferential direction is provided. The first moving body is integrally arranged in tandem so that the constituent bodies of one or a plurality of units are in the central axis direction and the convex magnetic body portion forms a spiral shape as the entire first moving body. .

  One unit of the second rotating body has a central axis direction of the cylindrical magnetic body as a pitch axis on the outer surface (surface on the facing surface 1-2 side) of the cylindrical magnetic body having a length in the central axis direction of z2 / 2. Two constituent parts (2- (n) -0, 2- (n) -1) having a plurality of spiral convex magnetic parts at equal intervals in the circumferential direction are z20 (where z20 = z0- They are arranged in a row in the direction of the central axis via a nonmagnetic material (not shown) at intervals of z2). In the second moving body, the units are arranged in tandem in the central axis direction, and the (n-1) th unit component (2- (n-1) -1) and the (n) unit component ( 2- (n) -0) constitutes a structural body (2- (n)) having a length z2 which is integrally configured so that the convex magnetic body portion forms a spiral shape, and the configuration of the (n) unit. The part (2- (n) -1) and the constituent part (2- (n + 1) -0) of the (n + 1) th unit are integrally configured such that the convex magnetic body part forms a spiral shape, and has a length z2. The constituents (2- (n + 1)) are configured, and these constituents are z20 via a non-magnetic body (not shown) so that the convex magnetic body portion forms a spiral shape as the entire second moving body. Are arranged in a single column at intervals.

  One unit of the transmission force ON / OFF control moving body sandwiches a cylindrical magnet magnetized in the plus (or minus) direction of the central axis with the columnar magnetic body from above and below, and transmits the transmission force ON / OFF control moving body. A structure (3- (n)) having a length in the central axis direction z3 (however, z3 ≦ z0) is formed so that magnetic flux enters and exits from the upper and lower outer peripheral surfaces. The transmission force ON / OFF control moving body has a unit in which the magnet is magnetized in the positive direction of the central axis and a unit in which the magnet is magnetized in the negative direction of the central axis are arranged in tandem in the central axis direction. The magnetic fluxes entering and exiting from the upper part and the lower part of the unit are arranged in tandem in the direction of the central axis so that the odd-numbered unit and the even-numbered unit counted from the lowest unit are almost opposite. Moreover, the whole can move relative to the second moving body in the direction of the central axis.

  With reference to the cross-sectional view of FIG. 2, an explanation will be given of the operation when the transmission force is controlled as the transmission force ON / OFF control moving body moves. The dotted line arrow is a schematic representation of the flow of magnetic flux. In the case of transmission ON, the magnetic flux emitted from the transmission force ON / OFF control moving body flows through the second moving body to the first moving body, and again through the second moving body, the transmission force ON / OFF control. The first moving body and the second moving body are magnetically coupled and power is transmitted. When transmission is OFF, the magnetic flux from the transmission force ON / OFF control moving body passes through the second moving body and enters the transmission force ON / OFF control moving body, so that the magnetic flux does not flow to the first moving body. The first moving body and the second moving body are not magnetically coupled and power is not transmitted. In addition, when the position of the moving body for transmission force ON / OFF control is an intermediate position between ON and OFF, the transmission force is a value between ON and OFF. It is possible to arbitrarily control the transmission force (limit transmission force).

  The first moving body is configured to be able to rotate only around the central axis, the second moving body is configured to be able to move only in the central axis direction, and the transmission force ON / OFF control moving body is the second moving body. If configured to move together, it is possible to operate as a power transmission device that can transmit the rotational power of the first moving body and the linear power of the second moving body to each other. The transmission force can be controlled by moving the transmission force ON / OFF control moving body relative to the second moving body.

  If the second moving body is configured to be able to rotate only around the central axis, and the first moving body is configured to be able to move only in the central axis direction, the rotational power of the second moving body and the first moving body It is possible to operate as a power transmission device capable of transmitting linear power to each other. The transmission force can be controlled by moving the transmission force ON / OFF control moving body relative to the second moving body.

  If the first moving body and the second moving body are configured to be able to rotate only around the central axis, a power transmission device that can transmit the rotational power of the first moving body and the rotational power of the second moving body to each other is provided. It is possible to operate. The transmission force can be controlled by moving the transmission force ON / OFF control moving body relative to the second moving body.

  As means for restricting these movement directions (only rotation around the central axis is possible, only movement in the central axis direction is possible), for example, a guide groove and a guide bearing engaged therewith can be provided separately. Further, movement along the guide groove is possible by the shape of the guide groove. For example, the second moving body is configured to be able to rotate only around the central axis, a guide bearing is provided on the outer surface of the first moving body, and a groove having a predetermined length in the central axis direction as a guide groove engaged with the guide bearing If the groove around the central axis is formed, the first moving body can move in a rotational direction after linearly moving in the direction of the central axis along with the rotation of the second moving body.

(Second Embodiment)
One form of the power transmission device according to the present invention is shown in FIGS. The first moving body, the second moving body, and the transmission force ON / OFF control moving body are all axially symmetric, and their central axes coincide with each other, and the first moving body and the second moving body are convex. Each of the magnetic body portions is formed in a spiral shape, and the first moving body and the second moving body are opposed to each other by forming a facing surface (facing surface 1-2).

  The upper left figure of FIG. 4 is a perspective view of the entire power transmission device, and the lower figure is a perspective view of the first moving body, the second moving body, and the moving body for transmission force ON / OFF control in order from the left. These are combined to form the power transmission device shown in the upper left diagram of FIG.

  FIG. 5 is a plan view (upper view) and a cross-sectional view (lower view) showing a cross-sectional shape of a plane including the central axis. In the following figure, the left figure is when transmission is ON (power is transmitted between the first moving body and the second moving body), and the right figure is transmission OFF (power is transmitted between the first moving body and the second moving body). Or a state in which only a small amount of power can be transmitted compared to the ON state). The arrows marked on the transmission force ON / OFF control moving body in the figure below indicate the magnetizing direction of the magnet.

  FIG. 6 illustrates the configuration in the central axis direction and the configuration of the vertical arrangement as a configuration in which units having the length z0 in the central axis direction as a shape unit are arranged in the vertical direction in the central axis direction.

  The shapes shown in FIGS. 4 and 5 are those in which a plurality of units as shape units are arranged in tandem, and the upper and lower portions are cut out at appropriate positions for explanation (ie, the first moving body and the first unit). The two moving bodies are displayed for the length of 5 units, the transmission force ON / OFF control moving body is displayed for the length of 6 units), and the continuous shape in the vertical direction of the paper (each unit is further The shape may be a vertically arranged shape) or may be configured with a small number of units. It should be noted that the effects of the present invention can be achieved even with the shapes shown in FIGS.

  FIG. 6 schematically shows the main part of the cross-sectional view when transmission is ON. The shape in the central axis direction will be described in detail with reference to FIG. The length of one unit as a shape unit in the central axis direction is z0, and a plurality of the units are arranged in the central axis direction. Hereinafter, the (n) unit, which is the nth unit arranged in a column, will be described.

  One unit of the first moving body has the pitch axis as the central axis direction on the outer surface (surface on the facing surface 1-2 side) of the cylindrical magnetic body whose length in the central axis direction is z1 (where z1 ≦ z0). A structure (1- (n)) including a plurality of spiral convex magnetic body portions at equal intervals in the circumferential direction is provided. The first moving body is integrally arranged in tandem so that the constituent bodies of one or a plurality of units are in the central axis direction and the convex magnetic body portion forms a spiral shape as the entire first moving body. .

  One unit of the second rotating body has a central axis direction of the cylindrical magnetic body as a pitch axis on the inner surface (surface on the facing surface 1-2 side) of the cylindrical magnetic body having a length in the central axis direction of z2 / 2. Two constituent parts (2- (n) -0, 2- (n) -1) having a plurality of spiral convex magnetic parts at equal intervals in the circumferential direction are z20 (where z20 = z0- They are arranged in a row in the direction of the central axis via a nonmagnetic material (not shown) at intervals of z2). In the second moving body, the units are arranged in tandem in the central axis direction, and the (n-1) th unit component (2- (n-1) -1) and the (n) unit component ( 2- (n) -0) constitutes a structural body (2- (n)) having a length z2 which is integrally configured so that the convex magnetic body portion forms a spiral shape, and the configuration of the (n) unit. The part (2- (n) -1) and the constituent part (2- (n + 1) -0) of the (n + 1) th unit are integrally configured such that the convex magnetic body part forms a spiral shape, and has a length z2. The constituents (2- (n + 1)) are configured, and these constituents are z20 via a non-magnetic body (not shown) so that the convex magnetic body portion forms a spiral shape as the entire second moving body. Are arranged in a single column at intervals.

  One unit of the transmission force ON / OFF control moving body sandwiches a cylindrical magnet magnetized in the plus (or minus) direction of the central axis with the cylindrical magnetic body from above and below, and transmits the transmission force ON / OFF control moving body. The magnetic flux enters and exits from the top and bottom of the inner peripheral surface to form a structure (3- (n)) having a length in the central axis direction z3 (where z3 ≦ z0). The transmission force ON / OFF control moving body has a unit in which the magnet is magnetized in the positive direction of the central axis and a unit in which the magnet is magnetized in the negative direction of the central axis are arranged in tandem in the central axis direction. The magnetic fluxes entering and exiting from the upper part and the lower part of the unit are arranged in tandem in the direction of the central axis so that the odd-numbered unit and the even-numbered unit counted from the lowest unit are almost opposite. Moreover, the whole can move relative to the second moving body in the direction of the central axis.

  With reference to the cross-sectional view of FIG. 5, an explanation will be given of the operation when the transmission force is controlled as the transmission force ON / OFF control moving body moves. The dotted line arrow is a schematic representation of the flow of magnetic flux. In the case of transmission ON, the magnetic flux emitted from the transmission force ON / OFF control moving body flows through the second moving body to the first moving body, and again through the second moving body, the transmission force ON / OFF control. The first moving body and the second moving body are magnetically coupled and power is transmitted. When transmission is OFF, the magnetic flux from the transmission force ON / OFF control moving body passes through the second moving body and enters the transmission force ON / OFF control moving body, so that the magnetic flux does not flow to the first moving body. The first moving body and the second moving body are not magnetically coupled and power is not transmitted. In addition, when the position of the moving body for transmission force ON / OFF control is an intermediate position between ON and OFF, the transmission force is a value between ON and OFF. It is possible to arbitrarily control the transmission force (limit transmission force).

  The first moving body is configured to be able to rotate only around the central axis, the second moving body is configured to be able to move only in the central axis direction, and the transmission force ON / OFF control moving body is the second moving body. If configured to move together, it is possible to operate as a power transmission device that can transmit the rotational power of the first moving body and the linear power of the second moving body to each other. The transmission force can be controlled by moving the transmission force ON / OFF control moving body relative to the second moving body.

  If the second moving body is configured to be able to rotate only around the central axis, and the first moving body is configured to be able to move only in the central axis direction, the rotational power of the second moving body and the first moving body It is possible to operate as a power transmission device capable of transmitting linear power to each other. The transmission force can be controlled by moving the transmission force ON / OFF control moving body relative to the second moving body.

  If the first moving body and the second moving body are configured to be able to rotate only around the central axis, a power transmission device that can transmit the rotational power of the first moving body and the rotational power of the second moving body to each other is provided. It is possible to operate. The transmission force can be controlled by moving the transmission force ON / OFF control moving body relative to the second moving body.

(Third embodiment)
One form of the power transmission device according to the present invention is shown in FIGS. FIG. 7 is a perspective view, the upper diagram is an overall view of the main part of the power transmission device, and the lower diagram is a diagram showing each component of the power transmission device.

  8 is a plan view (upper view) and a cross-sectional view (lower two views) of the power transmission device shown in FIG. In the two cross-sectional views, when the transmission is ON on the left (when power transmission is performed between the first moving body and the second moving body), and when the right is OFF (between the first moving body and the second moving body) The structure of the case where power transmission is not performed is shown. The arrows on the transmission force ON / OFF control moving body in the sectional view represent the magnetizing direction of the magnet.

  If the units are arranged in tandem as in the first embodiment, z1 = z0 and z3 = z0, and the first moving body and the second moving body are each united by 5 units. It can be considered that six units of the moving body for transmitting force ON / OFF control are arranged in a column and arranged in a column. Each of the first moving body, the second moving body, and the transmission force ON / OFF control moving body may have a shape in which units are further added upward or downward, or may be configured with a small number of units. .

  The first moving body and the second moving body face each other, and a facing surface (facing surface 1-2) is formed between them. The facing surface 1-2 is not shown.

  The first moving body is provided with an equidistant spacing of 18 spiral convex magnetic bodies having a central axis of the cylindrical magnetic body as a pitch axis on the inner surface on the opposite surface 1-2 side of the cylindrical magnetic body. It has a shape to prepare for.

  In the second moving body, a plurality of constituent bodies each having a convex magnetic body portion that can be opposed to the convex magnetic body portion of the first moving body on the outer surface of the cylindrical magnetic body are spaced via a non-magnetic body. The first moving body and the second moving body are integrally arranged in a column in the direction of the central axis, and have a helical shape as a whole so as to be opposed to the convex magnetic body portion of the first moving body. In addition, although the object which connects a structure is not shown in figure, a structure body is connected and it moves integrally.

  The transmission force ON / OFF control moving body is configured by cascading cylindrical magnets magnetized in the plus direction of the rotation axis between the upper and lower columns so that the magnetizing directions of the magnets are alternately switched. The magnetic flux enters and exits from the top and bottom of the outer peripheral surface of the movable body for transmission force ON / OFF control, and the magnetic flux enters and exits depending on the position in the central axis direction. Moreover, the whole can move relative to the second moving body in the direction of the central axis.

  With reference to the cross-sectional view shown in FIG. 8, an explanation will be given of the operation when the transmission of power is controlled as the transmission force ON / OFF control moving body moves. The dotted line arrow is a schematic representation of the flow of magnetic flux. In the case of transmission ON, the magnetic flux emitted from the transmission force ON / OFF control moving body flows through the second moving body to the first moving body, and again through the second moving body, the transmission force ON / OFF control. The first moving body and the second moving body are magnetically coupled and power is transmitted. When the transmission torque is OFF, the magnetic flux from the transmission force ON / OFF control moving body passes through the second moving body and enters the transmission force ON / OFF control moving body, so that the magnetic flux does not flow to the first moving body. The first moving body and the second moving body are not magnetically coupled, and power is not transmitted. In addition, when the position of the transmission body for ON / OFF control of the transmission force is an intermediate position between ON and OFF, the transmission power of the motion is a value between ON and OFF, so the transmission force ON / OFF control mobile body It is possible to arbitrarily control the transmission force by movement.

  The first moving body is configured to be able to rotate only around the central axis, the second moving body is configured to be able to move only in the central axis direction, and the transmission force ON / OFF control moving body is the second moving body. If configured to move together, it is possible to operate as a power transmission device that can transmit the rotational power of the first moving body and the linear power of the second moving body to each other. The transmission force can be controlled by moving the transmission force ON / OFF control moving body relative to the second moving body.

  If the second moving body is configured to be able to rotate only around the central axis, and the first moving body is configured to be able to move only in the central axis direction, the rotational power of the second moving body and the first moving body It is possible to operate as a power transmission device capable of transmitting linear power to each other. The transmission force can be controlled by moving the transmission force ON / OFF control moving body relative to the second moving body.

  If the first moving body and the second moving body are configured to be able to rotate only around the central axis, a power transmission device that can transmit the rotational power of the first moving body and the rotational power of the second moving body to each other is provided. It is possible to operate. The transmission force can be controlled by moving the transmission force ON / OFF control moving body relative to the second moving body.

(Fourth embodiment)
One form of the power transmission device according to the present invention is shown in FIGS. FIG. 9 is a perspective view, an upper view is an overall view of a main part of the power transmission device, and a lower view is a diagram showing each component of the power transmission device.

  10 is a plan view (upper view) and a cross-sectional view (lower two views) of the power transmission device shown in FIG. In the two cross-sectional views, when the transmission is ON on the left (when power transmission is performed between the first moving body and the second moving body), and when the right is OFF (between the first moving body and the second moving body) The structure of the case where power transmission is not performed is shown. The arrows on the transmission force ON / OFF control moving body in the sectional view represent the magnetizing direction of the magnet.

  In the same manner as in the first embodiment, if the units are arranged in tandem, z1 = z0 and z3 = z0, and the first moving body is arranged in tandem in units of two units. It can also be considered that the body is arranged in a column of 5 units, and the moving body for transmission force ON / OFF control is arranged in a column of 6 units. Each of the first moving body, the second moving body, and the transmission force ON / OFF control moving body may have a shape in which units are further added upward or downward, or may be configured with a small number of units. .

  The first moving body and the second moving body face each other, and a facing surface (facing surface 1-2) is formed between them. The facing surface 1-2 is not shown.

  The second moving body has, on the surface on the opposite surface (opposing surface 1-2) side of the cylindrical magnetic body, a spiral convex magnetic body portion with the central axis direction of the cylindrical magnetic body as a pitch axis in the circumferential direction. There are a plurality of constituent bodies having a plurality provided at equal intervals, and these constituent bodies are spaced apart via a non-magnetic body (not shown) in the central axis direction, and the convex magnetic body portion is the entire second moving body. Also, they are arranged in a single column so as to form a spiral shape and move integrally.

  The 1st moving body is provided with the convex magnetic body part which can oppose the convex magnetic body part of a 2nd moving body.

  The structure of the transmission force ON / OFF control moving body and the action when controlling the transmission of power accompanying the movement of the transmission force ON / OFF control moving body are described in the above embodiment (first embodiment). Etc.).

  The first moving body is configured to be able to rotate only around the central axis, the second moving body is configured to be able to move only in the central axis direction, and the transmission force ON / OFF control moving body is the second moving body. If configured to move together, it is possible to operate as a power transmission device that can transmit the rotational power of the first moving body and the linear power of the second moving body to each other. The transmission force can be controlled by moving the transmission force ON / OFF control moving body relative to the second moving body.

  If the second moving body is configured to be able to rotate only around the central axis, and the first moving body is configured to be able to move only in the central axis direction, the rotational power of the second moving body and the first moving body It is possible to operate as a power transmission device capable of transmitting linear power to each other. The transmission force can be controlled by moving the transmission force ON / OFF control moving body relative to the second moving body.

  If the first moving body and the second moving body are configured to be able to rotate only around the central axis, a power transmission device that can transmit the rotational power of the first moving body and the rotational power of the second moving body to each other is provided. It is possible to operate. The transmission force can be controlled by moving the transmission force ON / OFF control moving body relative to the second moving body.

(Fifth embodiment)
One form of the power transmission device according to the present invention is shown in FIGS. FIG. 11 is a perspective view, the upper diagram is an overall view of the main part of the power transmission device, and the lower diagram is a diagram showing each component of the power transmission device.

  12 is a plan view (upper view) and a cross-sectional view (lower two views) of the power transmission device shown in FIG. In the two cross-sectional views, when the transmission is ON on the left (when power transmission is performed between the first moving body and the second moving body), and when the right is OFF (between the first moving body and the second moving body) The structure of the case where power transmission is not performed is shown. The arrows on the transmission force ON / OFF control moving body in the sectional view represent the magnetizing direction of the magnet.

  In the same manner as in the first embodiment, if the units are arranged in tandem, z1 = z0 and z3 = z0, and the first moving body is arranged in tandem in units of 5 units, and the second movement The body has a length of two units (only one unit exists, and two components extend vertically to form two components, and these components are arranged in tandem via non-magnetic materials. It can also be considered that the transmission force ON / OFF control moving body has one unit. Each of the first moving body, the second moving body, and the transmission force ON / OFF control moving body may have a shape in which units are further added upward or downward, or may be configured with a small number of units. .

  The first moving body and the second moving body face each other, and a facing surface (facing surface 1-2) is formed between them. The facing surface 1-2 is not shown.

  The first moving body has, on the surface on the opposite surface (opposing surface 1-2) side of the cylindrical magnetic body, a spiral convex magnetic body portion with the central axis direction of the cylindrical magnetic body as the pitch axis in the circumferential direction. It is a shape provided with two or more at equal intervals.

  In the second moving body, a plurality (two) of constituent bodies each having a convex magnetic body portion that can be opposed to the convex magnetic body portion of the first moving body are spaced apart via a non-magnetic body (not shown). In addition, they are integrally arranged in a column in the direction of the central axis, and the convex magnetic body portion of the second moving body as a whole can be opposed to the convex magnetic body portion of the first moving body.

  The structure of the transmission force ON / OFF control moving body and the action when controlling the transmission of power accompanying the movement of the transmission force ON / OFF control moving body are described in the above embodiment (first embodiment). Etc.).

  The first moving body is configured to be able to rotate only around the central axis, the second moving body is configured to be able to move only in the central axis direction, and the transmission force ON / OFF control moving body is the second moving body. If configured to move together, it is possible to operate as a power transmission device that can transmit the rotational power of the first moving body and the linear power of the second moving body to each other. The transmission force can be controlled by moving the transmission force ON / OFF control moving body relative to the second moving body.

  If the second moving body is configured to be able to rotate only around the central axis, and the first moving body is configured to be able to move only in the central axis direction, the rotational power of the second moving body and the first moving body It is possible to operate as a power transmission device capable of transmitting linear power to each other. The transmission force can be controlled by moving the transmission force ON / OFF control moving body relative to the second moving body.

  If the first moving body and the second moving body are configured to be able to rotate only around the central axis, a power transmission device that can transmit the rotational power of the first moving body and the rotational power of the second moving body to each other is provided. It is possible to operate. The transmission force can be controlled by moving the transmission force ON / OFF control moving body relative to the second moving body.

(Sixth embodiment)
One form of the power transmission device according to the present invention is shown in FIGS. FIG. 13 is a perspective view, the upper diagram is an overall view of the main part of the power transmission device, and the lower diagram is a diagram showing each component of the power transmission device.

  14 is a plan view (upper view) and a cross-sectional view (lower two views) of the power transmission device shown in FIG. In the two cross-sectional views, when the transmission is ON on the left (when power transmission is performed between the first moving body and the second moving body), and when the right is OFF (between the first moving body and the second moving body) The structure of the case where power transmission is not performed is shown. The arrows on the transmission force ON / OFF control moving body in the sectional view represent the magnetizing direction of the magnet.

  If the units are arranged in tandem as in the second embodiment, z1 = z0 and z3 = z0, and the first moving body and the second moving body are each united by 5 units. It can be considered that six units of the moving body for transmitting force ON / OFF control are arranged in a column and arranged in a column. Each of the first moving body, the second moving body, and the transmission force ON / OFF control moving body may have a shape in which units are further added upward or downward, or may be configured with a small number of units. .

  The first moving body and the second moving body face each other, and a facing surface (facing surface 1-2) is formed between them. The facing surface 1-2 is not shown.

  The first moving body has 18 helical convex portions spaced circumferentially in the circumferential direction on the outer surface on the opposite surface 1-2 side of the cylindrical magnetic body, the central axis of the cylindrical magnetic body being the pitch axis. It has a shape to prepare for.

  In the second moving body, a plurality of constituent bodies each having a convex magnetic body portion that can be opposed to the convex magnetic body portion of the first moving body on the inner surface of the cylindrical magnetic body via a non-magnetic body (not shown). Are arranged in a row in the central axis direction of the first moving body and the second moving body, and have a helical shape as a whole so as to be opposed to the convex magnetic body portion of the first moving body. It is composed. In addition, although the object which connects a structure is not shown in figure, a structure body is connected and it moves integrally.

  Regarding the configuration of the transmission force ON / OFF control moving body and the action when controlling the transmission of power accompanying the movement of the transmission force ON / OFF control moving body, the above description (second embodiment, etc.) Is the same.

    The first moving body is configured to be able to rotate only around the central axis, the second moving body is configured to be able to move only in the central axis direction, and the transmission force ON / OFF control moving body is the second moving body. If configured to move together, it is possible to operate as a power transmission device that can transmit the rotational power of the first moving body and the linear power of the second moving body to each other. The transmission force can be controlled by moving the transmission force ON / OFF control moving body relative to the second moving body.

  If the second moving body is configured to be able to rotate only around the central axis, and the first moving body is configured to be able to move only in the central axis direction, the rotational power of the second moving body and the first moving body It is possible to operate as a power transmission device capable of transmitting linear power to each other. The transmission force can be controlled by moving the transmission force ON / OFF control moving body relative to the second moving body.

  If the first moving body and the second moving body are configured to be able to rotate only around the central axis, a power transmission device that can transmit the rotational power of the first moving body and the rotational power of the second moving body to each other is provided. It is possible to operate. The transmission force can be controlled by moving the transmission force ON / OFF control moving body relative to the second moving body.

(Seventh embodiment)
One form of the power transmission device according to the present invention is shown in FIGS. FIG. 15 is a perspective view, the upper diagram is an overall view of the main part of the power transmission device, and the lower diagram is a diagram showing each component of the power transmission device.

  16 is a plan view (upper view) and a cross-sectional view (lower two views) of the power transmission device shown in FIG. In the two cross-sectional views, when the transmission is ON on the left (when power transmission is performed between the first moving body and the second moving body), and when the right is OFF (between the first moving body and the second moving body) The structure of the case where power transmission is not performed is shown. The arrows on the transmission force ON / OFF control moving body in the sectional view represent the magnetizing direction of the magnet.

  If the units are arranged in tandem as in the second embodiment, z1 = z0 and z3 = z0, the first moving body has only one unit, and the second moving body has 5 units. It can also be considered that six units of the moving body for transmission force ON / OFF control are integrally arranged in a column. Each of the first moving body, the second moving body, and the transmission force ON / OFF control moving body may have a shape in which units are further added upward or downward, or may be configured with a small number of units. .

  The first moving body and the second moving body face each other, and a facing surface (facing surface 1-2) is formed between them. The facing surface 1-2 is not shown.

  The second moving body has, on the surface on the opposite surface (opposing surface 1-2) side of the cylindrical magnetic body, a spiral convex magnetic body portion with the central axis direction of the cylindrical magnetic body as a pitch axis in the circumferential direction. There are a plurality of constituent bodies having a plurality provided at equal intervals, and these constituent bodies are spaced apart via a non-magnetic body (not shown) in the central axis direction, and the convex magnetic body portion is the entire second moving body. Also, they are arranged in a single column so as to form a spiral shape and move integrally.

  The 1st moving body is provided with the convex magnetic body part which can oppose the convex magnetic body part of a 2nd moving body.

  Regarding the configuration of the transmission force ON / OFF control moving body and the action when controlling the transmission of power accompanying the movement of the transmission force ON / OFF control moving body, the above embodiment (second embodiment) is described. Etc.).

  The transmission force ON / OFF control moving body sandwiches a cylindrical magnet magnetized in the radial plus direction with respect to the rotation axis and a cylindrical magnet magnetized in the minus direction via a cylindrical non-magnetic material. The magnets are arranged in tandem so that the magnetizing directions of the magnets are alternately switched. Magnetic flux enters and exits from the top and bottom of the outer peripheral surface of the mobile body for transmission force ON / OFF control, and magnetic flux enters and exits depending on the position in the central axis direction. Are configured to be switched. Moreover, the whole can move relative to the second moving body in the direction of the central axis. The configuration of such a magnet is not limited to the present embodiment, and the effects of the present invention as a whole can be achieved. With respect to the movement of the transmission force ON / OFF control moving body, the operation in the case of controlling the transmission of power is the same as in the above-described embodiment (such as the second embodiment).

  As shown in other embodiments, as a transfer force ON / OFF control moving body, a cylindrical or columnar magnet magnetized in the direction of the central axis plus (or minus) is sandwiched by a cylindrical magnetic body from above and below. These may be arranged in tandem so that the magnetizing directions of the magnets are alternately switched. This configuration is advantageous from the viewpoint of generating a large amount of magnetic flux and increasing the transmission torque at the time of ON.

The first moving body is configured to be able to rotate only around the central axis, the second moving body is configured to be able to move only in the central axis direction, and the transmission force ON / OFF control moving body is the second moving body. If configured to move together, it is possible to operate as a power transmission device that can transmit the rotational power of the first moving body and the linear power of the second moving body to each other. The transmission force can be controlled by moving the transmission force ON / OFF control moving body relative to the second moving body.

  If the second moving body is configured to be able to rotate only around the central axis, and the first moving body is configured to be able to move only in the central axis direction, the rotational power of the second moving body and the first moving body It is possible to operate as a power transmission device capable of transmitting linear power to each other. The transmission force can be controlled by moving the transmission force ON / OFF control moving body relative to the second moving body.

  If the first moving body and the second moving body are configured to be able to rotate only around the central axis, a power transmission device that can transmit the rotational power of the first moving body and the rotational power of the second moving body to each other is provided. It is possible to operate. The transmission force can be controlled by moving the transmission force ON / OFF control moving body relative to the second moving body.

(Eighth embodiment)
One form of the power transmission device according to the present invention is shown in FIGS. FIG. 17 is a perspective view, the upper diagram is an overall view of the main part of the power transmission device, and the lower diagram is a diagram showing each component of the power transmission device.

  18 is a plan view (upper view) and a cross-sectional view (lower two views) of the power transmission device shown in FIG. In the two cross-sectional views, when the transmission is ON on the left (when power transmission is performed between the first moving body and the second moving body), and when the right is OFF (between the first moving body and the second moving body) The structure of the case where power transmission is not performed is shown. The arrows on the transmission force ON / OFF control moving body in the sectional view represent the magnetizing direction of the magnet.

  In the same manner as in the second embodiment, if the units are arranged in tandem, z1 = z0 and z3 = z0, and the first moving body is arranged in tandem in units of 5 units. The body has a length of two units (only one unit exists, and two components extend vertically to form two components, and these components are arranged in tandem via non-magnetic materials. It can also be considered that the transmission force ON / OFF control moving body has one unit. Each of the first moving body, the second moving body, and the transmission force ON / OFF control moving body may have a shape in which units are further added upward or downward, or may be configured with a small number of units. .

  The first moving body and the second moving body face each other, and a facing surface (facing surface 1-2) is formed between them. The facing surface 1-2 is not shown.

  The first moving body has, on the surface on the opposite surface (opposing surface 1-2) side of the cylindrical magnetic body, a spiral convex magnetic body portion with the central axis direction of the cylindrical magnetic body as the pitch axis in the circumferential direction. It is a shape provided with two or more at equal intervals.

  In the second moving body, a plurality (two) of constituent bodies each having a convex magnetic body portion that can be opposed to the convex magnetic body portion of the first moving body are spaced apart via a non-magnetic body (not shown). In addition, they are integrally arranged in a column in the direction of the central axis, and the convex magnetic body portion of the second moving body as a whole can be opposed to the convex magnetic body portion of the first moving body.

  Regarding the configuration of the transmission force ON / OFF control moving body and the action when controlling the transmission of power accompanying the movement of the transmission force ON / OFF control moving body, the above embodiment (second embodiment) is described. Etc.).

  The first moving body is configured to be able to rotate only around the central axis, the second moving body is configured to be able to move only in the central axis direction, and the transmission force ON / OFF control moving body is the second moving body. If configured to move together, it is possible to operate as a power transmission device that can transmit the rotational power of the first moving body and the linear power of the second moving body to each other. The transmission force can be controlled by moving the transmission force ON / OFF control moving body relative to the second moving body.

  If the second moving body is configured to be able to rotate only around the central axis, and the first moving body is configured to be able to move only in the central axis direction, the rotational power of the second moving body and the first moving body It is possible to operate as a power transmission device capable of transmitting linear power to each other. The transmission force can be controlled by moving the transmission force ON / OFF control moving body relative to the second moving body.

  If the first moving body and the second moving body are configured to be able to rotate only around the central axis, a power transmission device that can transmit the rotational power of the first moving body and the rotational power of the second moving body to each other is provided. It is possible to operate. The transmission force can be controlled by moving the transmission force ON / OFF control moving body relative to the second moving body.

(Ninth embodiment)
One form of the power transmission device according to the present invention is shown in FIGS. FIG. 19 is a perspective view, an upper view is an overall view of a main part of the power transmission device, and a lower view is a diagram showing each component of the power transmission device.

  20 is a plan view (upper view) and a cross-sectional view (lower two views) of the power transmission device shown in FIG. In the two cross-sectional views, when the transmission is ON on the left (when power transmission is performed between the first moving body and the second moving body), and when the right is OFF (between the first moving body and the second moving body) The structure of the case where power transmission is not performed is shown. The arrows on the transmission force ON / OFF control moving body in the sectional view represent the magnetizing direction of the magnet.

  In the power transmission device shown in the third embodiment, it may be considered that the first moving body and the transmission force ON / OFF control moving body exist only in a part of the circumference.

  If the units are arranged in tandem as in the first embodiment, z1 = z0 and z3 = z0, and the first moving body and the second moving body are each united by 5 units. It can be considered that six units of the moving body for transmitting force ON / OFF control are arranged in a column and arranged in a column. Each of the first moving body, the second moving body, and the transmission force ON / OFF control moving body may have a shape in which units are further added upward or downward, or may be configured with a small number of units. .

  The first moving body and the second moving body face each other, and a facing surface (facing surface 1-2) is formed between them. The facing surface 1-2 is not shown.

  The second moving body has, on the surface on the opposite surface (opposing surface 1-2) side of the cylindrical magnetic body, a spiral convex magnetic body portion with the central axis direction of the cylindrical magnetic body as a pitch axis in the circumferential direction. There are a plurality (five) of structural bodies having a plurality provided at equal intervals, and these structural bodies are spaced apart via a non-magnetic body (not shown) in the central axis direction, and the convex magnetic body portion is the second. The entire moving body is also integrally arranged in a column so as to form a spiral shape, and moves integrally.

  The 1st moving body is provided with the convex magnetic body part which can oppose the convex magnetic body part of a 2nd moving body.

  The structure of the transmission force ON / OFF control moving body and the action when controlling the transmission of power accompanying the movement of the transmission force ON / OFF control moving body are described in the above embodiment (first embodiment). Etc.).

  The first moving body is configured to be able to rotate only around the central axis, the second moving body is configured to be able to move only in the central axis direction, and the transmission force ON / OFF control moving body is the second moving body. If configured to move together, it is possible to operate as a power transmission device that can transmit the rotational power of the first moving body and the linear power of the second moving body to each other. The transmission force can be controlled by moving the transmission force ON / OFF control moving body relative to the second moving body. However, when the first moving body and the moving body for transmission force ON / OFF control have a partial shape like the shape shown in the present embodiment, the transmission force ON / OFF is accompanied with the rotation of the first moving body. It is necessary that the mobile body for OFF control also be configured to rotate. In order to avoid this, it is preferable that at least one of the first moving body or the transmission force ON / OFF control moving body has an axisymmetric shape in addition to the second moving body having an axisymmetric shape.

  If the second moving body is configured to be able to rotate only around the central axis, and the first moving body is configured to be able to move only in the central axis direction, the rotational power of the second moving body and the first moving body It is possible to operate as a power transmission device capable of transmitting linear power to each other. The transmission force can be controlled by moving the transmission force ON / OFF control moving body relative to the second moving body.

  If the first moving body and the second moving body are configured to be able to rotate only around the central axis, a power transmission device that can transmit the rotational power of the first moving body and the rotational power of the second moving body to each other is provided. It is possible to operate. The transmission force can be controlled by moving the transmission force ON / OFF control moving body relative to the second moving body. However, when the first moving body and the moving body for transmission force ON / OFF control have a partial shape like the shape shown in the present embodiment, the transmission force ON / OFF is accompanied with the rotation of the first moving body. It is necessary that the mobile body for OFF control also be configured to rotate. In order to avoid this, it is preferable that at least one of the first moving body or the transmission force ON / OFF control moving body has an axisymmetric shape in addition to the second moving body having an axisymmetric shape.

(Tenth embodiment)
One form of the power transmission device according to the present invention is shown in FIGS. FIG. 21 is a perspective view, the upper diagram is an overall view of the main part of the power transmission device, and the lower diagram is a diagram showing each component of the power transmission device.

  FIG. 22 is a plan view (upper view) and a cross-sectional view (lower two views) of the power transmission device shown in FIG. In the two cross-sectional views, when the transmission is ON on the left (when power transmission is performed between the first moving body and the second moving body), and when the right is OFF (between the first moving body and the second moving body) The structure of the case where power transmission is not performed is shown. The arrows on the transmission force ON / OFF control moving body in the sectional view represent the magnetizing direction of the magnet.

  In the power transmission device shown in the third embodiment, it may be considered that the second moving body and the transmission force ON / OFF control moving body exist only in a part of the circumference.

  If the units are arranged in tandem as in the first embodiment, z1 = z0 and z3 = z0, and the first moving body and the second moving body are each united by 5 units. It can be considered that six units of the moving body for transmitting force ON / OFF control are arranged in a column and arranged in a column. Each of the first moving body, the second moving body, and the transmission force ON / OFF control moving body may have a shape in which units are further added upward or downward, or may be configured with a small number of units. .

  The first moving body and the second moving body face each other, and a facing surface (facing surface 1-2) is formed between them. The facing surface 1-2 is not shown.

  The first moving body has, on the surface on the opposite surface (opposing surface 1-2) side of the cylindrical magnetic body, a spiral convex magnetic body portion with the central axis direction of the cylindrical magnetic body as the pitch axis in the circumferential direction. It is a shape provided with two or more at equal intervals.

  In the second moving body, a plurality of constituent bodies (five) having convex magnetic body portions that can be opposed to the convex magnetic body portion of the first moving body are spaced apart via a non-magnetic body (not shown). In addition, they are integrally arranged in a column in the direction of the central axis, and the convex magnetic body portion of the second moving body as a whole can be opposed to the convex magnetic body portion of the first moving body.

  The structure of the transmission force ON / OFF control moving body and the action when controlling the transmission of power accompanying the movement of the transmission force ON / OFF control moving body are described in the above embodiment (first embodiment). Etc.).

  The first moving body is configured to be able to rotate only around the central axis, the second moving body is configured to be able to move only in the central axis direction, and the transmission force ON / OFF control moving body is the second moving body. If configured to move together, it is possible to operate as a power transmission device that can transmit the rotational power of the first moving body and the linear power of the second moving body to each other. The transmission force can be controlled by moving the transmission force ON / OFF control moving body relative to the second moving body.

  If the second moving body is configured to be able to rotate only around the central axis, and the first moving body is configured to be able to move only in the central axis direction, the rotational power of the second moving body and the first moving body It is possible to operate as a power transmission device capable of transmitting linear power to each other. The transmission force can be controlled by moving the transmission force ON / OFF control moving body relative to the second moving body. However, when the second moving body and the moving body for transmission force ON / OFF control have a partial shape like the shape shown in the present embodiment, the transmission force ON / OFF is accompanied with the rotation of the second moving body. It is necessary that the OFF control moving body also be configured to rotate. In order to avoid this, it is preferable that at least one of the second moving body or the transmission force ON / OFF control moving body has an axisymmetric shape in addition to the first moving body having an axisymmetric shape.

  If the first moving body and the second moving body are configured to be able to rotate only around the central axis, a power transmission device that can transmit the rotational power of the first moving body and the rotational power of the second moving body to each other is provided. It is possible to operate. The transmission force can be controlled by moving the transmission force ON / OFF control moving body relative to the second moving body. However, when the second moving body and the moving body for transmission force ON / OFF control have a partial shape like the shape shown in the present embodiment, the transmission force ON / OFF is accompanied with the rotation of the second moving body. It is necessary that the mobile body for OFF control also be configured to rotate. In order to avoid this, it is preferable that at least one of the second moving body or the transmission force ON / OFF control moving body has an axisymmetric shape in addition to the first moving body having an axisymmetric shape.

(Eleventh embodiment)
One form of the power transmission device according to the present invention is shown in FIGS. FIG. 23 is a perspective view, the upper diagram is an overall view of the main part of the power transmission device, and the lower diagram is a diagram showing each component of the power transmission device.

  FIG. 24 is a plan view (upper view) and a cross-sectional view (lower two views) of the power transmission device shown in FIG. In the two cross-sectional views, when the transmission is ON on the left (when power transmission is performed between the first moving body and the second moving body), and when the right is OFF (between the first moving body and the second moving body) The structure of the case where power transmission is not performed is shown. The arrows on the transmission force ON / OFF control moving body in the sectional view represent the magnetizing direction of the magnet.

  In the power transmission apparatus shown in the sixth embodiment, it may be considered that the first moving body and the transmission force ON / OFF control moving body exist only in a part of the circumference.

  If the units are arranged in tandem as in the second embodiment, z1 = z0 and z3 = z0, and the first moving body and the second moving body are each united by 5 units. It can be considered that six units of the moving body for transmitting force ON / OFF control are arranged in a column and arranged in a column. Each of the first moving body, the second moving body, and the transmission force ON / OFF control moving body may have a shape in which units are further added upward or downward, or may be configured with a small number of units. .

  The first moving body and the second moving body face each other, and a facing surface (facing surface 1-2) is formed between them. The facing surface 1-2 is not shown.

  The second moving body has, on the surface on the opposite surface (opposing surface 1-2) side of the cylindrical magnetic body, a spiral convex magnetic body portion with the central axis direction of the cylindrical magnetic body as a pitch axis in the circumferential direction. There are a plurality (five) of structural bodies having a plurality provided at equal intervals, and these structural bodies are spaced apart via a non-magnetic body (not shown) in the central axis direction, and the convex magnetic body portion is the second. The entire moving body is also integrally arranged in a column so as to form a spiral shape, and moves integrally.

  The 1st moving body is provided with the convex magnetic body part which can oppose the convex magnetic body part of a 2nd moving body.

  Regarding the configuration of the transmission force ON / OFF control moving body and the action when controlling the transmission of power accompanying the movement of the transmission force ON / OFF control moving body, the above embodiment (second embodiment) is described. Etc.).

  The first moving body is configured to be able to rotate only around the central axis, the second moving body is configured to be able to move only in the central axis direction, and the transmission force ON / OFF control moving body is the second moving body. If configured to move together, it is possible to operate as a power transmission device that can transmit the rotational power of the first moving body and the linear power of the second moving body to each other. The transmission force can be controlled by moving the transmission force ON / OFF control moving body relative to the second moving body. However, when the first moving body and the moving body for transmission force ON / OFF control have a partial shape like the shape shown in the present embodiment, the transmission force ON / OFF is accompanied with the rotation of the first moving body. It is necessary that the mobile body for OFF control also be configured to rotate. In order to avoid this, it is preferable that at least one of the first moving body or the transmission force ON / OFF control moving body has an axisymmetric shape in addition to the second moving body having an axisymmetric shape.

  If the second moving body is configured to be able to rotate only around the central axis, and the first moving body is configured to be able to move only in the central axis direction, the rotational power of the second moving body and the first moving body It is possible to operate as a power transmission device capable of transmitting linear power to each other. The transmission force can be controlled by moving the transmission force ON / OFF control moving body relative to the second moving body.

  If the first moving body and the second moving body are configured to be able to rotate only around the central axis, a power transmission device that can transmit the rotational power of the first moving body and the rotational power of the second moving body to each other is provided. It is possible to operate. The transmission force can be controlled by moving the transmission force ON / OFF control moving body relative to the second moving body. However, when the first moving body and the moving body for transmission force ON / OFF control have a partial shape like the shape shown in the present embodiment, the transmission force ON / OFF is accompanied with the rotation of the first moving body. It is necessary that the mobile body for OFF control also be configured to rotate. In order to avoid this, it is preferable that at least one of the first moving body or the transmission force ON / OFF control moving body has an axisymmetric shape in addition to the second moving body having an axisymmetric shape.

(Twelfth embodiment)
One form of the power transmission device according to the present invention is shown in FIGS. FIG. 25 is a perspective view, the upper diagram is an overall view of the main part of the power transmission device, and the lower diagram is a diagram showing each component of the power transmission device.

  FIG. 26 is a plan view (upper view) and a cross-sectional view (lower two views) of the power transmission device shown in FIG. In the two cross-sectional views, when the transmission is ON on the left (when power transmission is performed between the first moving body and the second moving body), and when the right is OFF (between the first moving body and the second moving body) The structure of the case where power transmission is not performed is shown. The arrows on the transmission force ON / OFF control moving body in the sectional view represent the magnetizing direction of the magnet.

  In the power transmission device shown in the sixth embodiment, it may be considered that the second moving body and the transmission force ON / OFF control moving body exist only in a part of the circumference.

  If the units are arranged in tandem as in the second embodiment, z1 = z0 and z3 = z0, and the first moving body and the second moving body are each united by 5 units. It can be considered that six units of the moving body for transmitting force ON / OFF control are arranged in a column and arranged in a column. Each of the first moving body, the second moving body, and the transmission force ON / OFF control moving body may have a shape in which units are further added upward or downward, or may be configured with a small number of units. .

  The first moving body and the second moving body face each other, and a facing surface (facing surface 1-2) is formed between them. The facing surface 1-2 is not shown.

  The first moving body has, on the surface on the opposite surface (opposing surface 1-2) side of the cylindrical magnetic body, a spiral convex magnetic body portion with the central axis direction of the cylindrical magnetic body as the pitch axis in the circumferential direction. It is a shape provided with two or more at equal intervals.

  In the second moving body, a plurality of constituent bodies (five) having convex magnetic body portions that can be opposed to the convex magnetic body portion of the first moving body are spaced apart via a non-magnetic body (not shown). In addition, they are integrally arranged in a column in the direction of the central axis, and the convex magnetic body portion of the second moving body as a whole can be opposed to the convex magnetic body portion of the first moving body.

  The structure of the transmission force ON / OFF control moving body and the action when controlling the transmission of power accompanying the movement of the transmission force ON / OFF control moving body are described in the above embodiment (first embodiment). Etc.).

  The first moving body is configured to be able to rotate only around the central axis, the second moving body is configured to be able to move only in the central axis direction, and the transmission force ON / OFF control moving body is the second moving body. If configured to move together, it is possible to operate as a power transmission device that can transmit the rotational power of the first moving body and the linear power of the second moving body to each other. The transmission force can be controlled by moving the transmission force ON / OFF control moving body relative to the second moving body.

  If the second moving body is configured to be able to rotate only around the central axis, and the first moving body is configured to be able to move only in the central axis direction, the rotational power of the second moving body and the first moving body It is possible to operate as a power transmission device capable of transmitting linear power to each other. The transmission force can be controlled by moving the transmission force ON / OFF control moving body relative to the second moving body. However, when the second moving body and the moving body for transmission force ON / OFF control have a partial shape like the shape shown in the present embodiment, the transmission force ON / OFF is accompanied with the rotation of the second moving body. It is necessary that the OFF control moving body also be configured to rotate. In order to avoid this, it is preferable that at least one of the second moving body or the transmission force ON / OFF control moving body has an axisymmetric shape in addition to the first moving body having an axisymmetric shape.

  If the first moving body and the second moving body are configured to be able to rotate only around the central axis, a power transmission device that can transmit the rotational power of the first moving body and the rotational power of the second moving body to each other is provided. It is possible to operate. The transmission force can be controlled by moving the transmission force ON / OFF control moving body relative to the second moving body. However, when the second moving body and the moving body for transmission force ON / OFF control have a partial shape like the shape shown in the present embodiment, the transmission force ON / OFF is accompanied with the rotation of the second moving body. It is necessary that the mobile body for OFF control also be configured to rotate. In order to avoid this, it is preferable that at least one of the second moving body or the transmission force ON / OFF control moving body has an axisymmetric shape in addition to the first moving body having an axisymmetric shape.

(Thirteenth embodiment)
One form of the power transmission device according to the present invention is shown in FIGS. FIG. 27 is a perspective view, the upper diagram is an overall view of the main part of the power transmission device, and the lower diagram is a diagram showing each component of the power transmission device.

  28 is a plan view (upper view) and a cross-sectional view (lower two views) of the power transmission device shown in FIG. In the two cross-sectional views, when the transmission is on the left (when power transmission is performed between the first moving body and the second moving body), and when the lower is OFF (between the first moving body and the second moving body) The structure of the case where power transmission is not performed is shown. The arrows on the transmission force ON / OFF control moving body in the sectional view represent the magnetizing direction of the magnet.

  The outer periphery of the second moving body of the power transmission device shown in the fifth embodiment and the moving body for transmission force ON / OFF control, and the convex magnetic body portion that can face the convex magnetic body portion of the second moving body And a first moving body having an axisymmetric shape.

  If the units are arranged in tandem as in the first embodiment, z3 = z0, and there is one unit each for the second moving body and the transmission power ON / OFF control moving body. You can also think that

  The first moving body and the second moving body face each other, and a facing surface (facing surface 1-2) is formed between them. The facing surface 1-2 is not shown.

  The second moving body has, on the surface on the opposite surface (opposing surface 1-2) side of the cylindrical magnetic body, a spiral convex magnetic body portion with the central axis direction of the cylindrical magnetic body as a pitch axis in the circumferential direction. There are a plurality (two) of structural bodies having a plurality provided at equal intervals, and these structural bodies are spaced apart via a non-magnetic body (not shown) in the central axis direction, and the convex magnetic body portion is the second. The entire moving body is also integrally arranged in a column so as to form a spiral shape, and moves integrally.

  The 1st moving body is provided with the convex magnetic body part which can oppose the convex magnetic body part of a 2nd moving body.

  The structure of the transmission force ON / OFF control moving body and the action when controlling the transmission of power accompanying the movement of the transmission force ON / OFF control moving body are described in the above embodiment (first embodiment). Etc.).

  If the first moving body and the second moving body are configured to be able to rotate only around the central axis, a power transmission device that can transmit the rotational power of the first moving body and the rotational power of the second moving body to each other is provided. It is possible to operate. The transmission force can be controlled by moving the transmission force ON / OFF control moving body relative to the second moving body.

(Fourteenth embodiment)
One form of the power transmission device according to the present invention is shown in FIGS. FIG. 29 is a perspective view, the upper diagram is an overall view of the main part of the power transmission device, and the lower diagram is a diagram showing each component of the power transmission device. The power transmission device shown in the fourth embodiment is similar to the configuration in which two power transmission devices are arranged in the central axis direction, but the helical pitch direction of the convex magnetic body portions of the first moving body and the second moving body is Two power transmission devices in opposite directions are arranged in the central axis direction. A power transmission device in which the helical shape of the convex magnetic body portion of the first moving body and the second moving body is clockwise, and a power in which the helical shape of the convex magnetic body portion of the first moving body and the second moving body is counterclockwise. It can also be expressed as a configuration in which the transmission device is arranged in the central axis direction. The first moving bodies, the second moving bodies, and the transmission force ON / OFF control moving bodies of these two power transmission devices are configured to operate integrally. The transmission force ON / OFF control moving body is integrally configured so that when one of the two power transmission devices is transmission ON, the other is transmission OFF. In addition, the part which comprises these integrally is not shown in figure in the figure.

  30 is a plan view (upper view) and a cross-sectional view (lower two views) of the power transmission device shown in FIG. Of the two cross-sectional views, the left figure shows when the upper power transmission part is ON and the lower power transmission part is OFF. The right figure shows the lower power transmission when the upper power transmission part is OFF. This shows a configuration when the unit is ON for transmission. The arrows on the transmission force ON / OFF control moving body in the sectional view represent the magnetizing direction of the magnet.

  The first moving body (which refers to a structure in which the first moving bodies of the two power transmission devices are integrated with each other, hereinafter the same in the present embodiment) is configured to be able to rotate only around the central axis. The second moving body (refers to a structure in which the first moving bodies of the two power transmission devices are integrated with each other. Hereinafter, the same applies to the present embodiment) is configured to be able to move only in the central axis direction. A moving body for transmission force ON / OFF control (pointing to a structure in which the moving bodies for transmission force ON / OFF control of two power transmission devices are integrated with each other. Hereinafter, the same applies to this embodiment). If configured to move with the body, it is possible to operate as a power transmission device that can transmit the rotational power of the first moving body and the linear power of the second moving body to each other. Then, by moving the transmission force ON / OFF control moving body relative to the second moving body, only one of the two power transmission devices can be turned on. The moving direction of the second moving body can be switched without reversing the rotation direction of the first moving body, or the rotating direction of the first moving body can be switched without reversing the moving direction of the second moving body. For example, considering the case where the first moving body rotates clockwise as viewed from above, the configuration on the left side of the cross-sectional view of FIG. 30 (the upper power transmission device is ON and the lower power transmission device is OFF) Since the power transmission by the upper power transmission device becomes dominant, the second moving body moves upward. Conversely, in the case of the configuration on the right side of the cross-sectional view of FIG. 30 (the upper power transmission device is OFF and the lower power transmission device is ON), the power transmission by the lower power transmission device becomes dominant, so the second The moving body moves downward. Accordingly, the moving direction of the second moving body is reversed by moving the transmission force ON / OFF control moving body relative to the second moving body without reversing the rotation direction of the first moving body. Is possible.

  If the second moving body is configured to be able to rotate only around the central axis, and the first moving body is configured to be able to move only in the central axis direction, the rotational power of the second moving body and the first moving body It is possible to operate as a power transmission device capable of transmitting linear power to each other. Then, by moving the transmission force ON / OFF control moving body relative to the second moving body, only one of the two power transmission devices can be turned on. The moving direction of the second moving body can be switched without reversing the rotation direction of the first moving body, or the rotating direction of the first moving body can be switched without reversing the moving direction of the second moving body. For example, considering the case where the second moving body rotates clockwise as viewed from above, the configuration on the left side of the cross-sectional view of FIG. 30 (the upper power transmission device is ON and the lower power transmission device is OFF) Since the power transmission by the upper power transmission device becomes dominant, the second moving body moves upward. Conversely, in the case of the configuration on the right side of the cross-sectional view of FIG. 30 (the upper power transmission device is OFF and the lower power transmission device is ON), the power transmission by the lower power transmission device becomes dominant, so the second The moving body moves downward. Therefore, the moving direction of the first moving body is reversed by moving the transmission force ON / OFF control moving body relative to the second moving body without reversing the rotation direction of the second moving body. Is possible.

  Note that if the movable bodies for controlling the transmission force ON / OFF of the two power transmission devices can be moved independently of each other, the upper and lower power transmission devices can be simultaneously turned off. In addition to the operations described, it is possible to eliminate power transmission between the first moving body and the second moving body.

(Fifteenth embodiment)
One form of the power transmission device according to the present invention is shown in FIGS. FIG. 31 is a perspective view, the upper diagram is an overall view of the main part of the power transmission device, and the lower diagram is a diagram showing each component of the power transmission device. The power transmission device shown in the eighth embodiment is similar to the configuration in which two power transmission devices are arranged in the central axis direction, but the helical pitch direction of the convex magnetic body portions of the first moving body and the second moving body is Two power transmission devices in opposite directions are arranged in the central axis direction. A power transmission device in which the helical shape of the convex magnetic body portion of the first moving body and the second moving body is clockwise, and a power in which the helical shape of the convex magnetic body portion of the first moving body and the second moving body is counterclockwise. It can also be expressed as a configuration in which the transmission device is arranged in the central axis direction. The first moving bodies, the second moving bodies, and the transmission force ON / OFF control moving bodies of these two power transmission devices are configured to operate integrally. The transmission force ON / OFF control moving body is integrally configured so that when one of the two power transmission devices is transmission ON, the other is transmission OFF. In addition, the part which comprises these integrally is not shown in figure in the figure.

  32 is a plan view (upper view) and a cross-sectional view (lower two views) of the power transmission device shown in FIG. Of the two cross-sectional views, the left figure shows when the upper power transmission part is ON and the lower power transmission part is OFF. The right figure shows the lower power transmission when the upper power transmission part is OFF. This shows a configuration when the unit is ON for transmission. The arrows on the transmission force ON / OFF control moving body in the sectional view represent the magnetizing direction of the magnet.

  The first moving body (which refers to a structure in which the first moving bodies of the two power transmission devices are integrated with each other, hereinafter the same in the present embodiment) is configured to be able to rotate only around the central axis. The second moving body (refers to a structure in which the first moving bodies of the two power transmission devices are integrated with each other. Hereinafter, the same applies to the present embodiment) is configured to be able to move only in the central axis direction. A moving body for transmission force ON / OFF control (pointing to a structure in which the moving bodies for transmission force ON / OFF control of two power transmission devices are integrated with each other. Hereinafter, the same applies to this embodiment). If configured to move with the body, it is possible to operate as a power transmission device that can transmit the rotational power of the first moving body and the linear power of the second moving body to each other. Then, by moving the transmission force ON / OFF control moving body relative to the second moving body, only one of the two power transmission devices can be turned on. The moving direction of the second moving body can be switched without reversing the rotation direction of the first moving body, or the rotating direction of the first moving body can be switched without reversing the moving direction of the second moving body. For example, considering the case where the first moving body rotates clockwise as viewed from above, the configuration on the left side of the cross-sectional view of FIG. 32 (the upper power transmission device is ON and the lower power transmission device is OFF) Since the power transmission by the upper power transmission device becomes dominant, the second moving body moves upward. Conversely, in the configuration on the right side of the cross-sectional view of FIG. 32 (the upper power transmission device is OFF and the lower power transmission device is ON), the power transmission by the lower power transmission device becomes dominant. The moving body moves downward. Accordingly, the moving direction of the second moving body is reversed by moving the transmission force ON / OFF control moving body relative to the second moving body without reversing the rotation direction of the first moving body. Is possible.

  If the second moving body is configured to be able to rotate only around the central axis, and the first moving body is configured to be able to move only in the central axis direction, the rotational power of the second moving body and the first moving body It is possible to operate as a power transmission device capable of transmitting linear power to each other. Then, by moving the transmission force ON / OFF control moving body relative to the second moving body, only one of the two power transmission devices can be turned on. The moving direction of the second moving body can be switched without reversing the rotation direction of the first moving body, or the rotating direction of the first moving body can be switched without reversing the moving direction of the second moving body. For example, considering the case where the second moving body rotates clockwise as viewed from above, the configuration on the left side of the cross-sectional view of FIG. 32 (the upper power transmission device is ON and the lower power transmission device is OFF) Since the power transmission by the upper power transmission device becomes dominant, the second moving body moves upward. Conversely, in the configuration on the right side of the cross-sectional view of FIG. 32 (the upper power transmission device is OFF and the lower power transmission device is ON), the power transmission by the lower power transmission device becomes dominant. The moving body moves downward. Therefore, the moving direction of the first moving body is reversed by moving the transmission force ON / OFF control moving body relative to the second moving body without reversing the rotation direction of the second moving body. Is possible.

  It is possible to provide a power transmission device that transmits power in a non-contact manner using magnetic action, and in particular, power transmission between rotary drive and linear drive and power transmission device that can turn on and off the power transmission between rotary drives. It is applicable to products that need to be

DESCRIPTION OF SYMBOLS 100 Power transmission device 1 First moving body 2 Second moving body 3 Transmission torque ON / OFF control moving body 1- (n) Constituent body of first (n) unit of first moving body 2- (n) Second movement Body (n) unit structure 2- (n) -0, 2- (n) -1 lower and upper structure part (n) unit of second rotating body 3- (n) transmission torque ON / Off control moving body (n) unit component 4 magnetic body 5 magnet

Claims (7)

A first moving body, a second moving body, and a moving body for transmission force ON / OFF control;
A power transmission device in which the first moving body and the second moving body face each other to form a facing surface (facing surface 1-2), and power is transmitted in a non-contact manner between the first moving body and the second moving body. Because
The first moving body is a spiral convex magnetic body portion having a pitch axis in the central axis direction of the cylindrical or columnar magnetic body on the surface of the cylindrical or columnar magnetic body facing the opposing surface (opposing surface 1-2). Are provided at regular intervals in the circumferential direction,
In the second moving body, a plurality of constituent bodies each including a convex magnetic body portion that can be opposed to the convex magnetic body portion of the first moving body on the surface on the facing surface (facing surface 1-2) side is a non-magnetic material. Are arranged in tandem in the central axis direction with a space therebetween, and the convex magnetic body portion of the second moving body as a whole can be opposed to the convex magnetic body portion of the first moving body. Yes,
The movable body for transmission force ON / OFF control is configured such that magnetic flux enters and exits from the surface in the direction of the second moving body, and the magnetic flux is switched in and out depending on the position in the central axis direction. It is arranged so as to face the surface that is not on the facing surface 1-2) side, is relatively movable along the surface of the second moving body, and the first moving body and the second moving body according to the relative position with respect to the second moving body. It is configured so that power transmission to and from the body can be controlled on / off. When power transmission is on, the magnetic flux emitted from the moving body for transmission force on / off control passes through the second moving body component. It is configured to flow to one moving body and enter a moving body for transmission force ON / OFF control through another component arranged at intervals of the second moving body. When power transmission is OFF, transmission force is ON. Magnetic flux from the moving body for the / OFF control is the second moving body Through the flow of magnetic flux into the transmission power ON / OFF control for the mobile to enter the first motion body is configured to be less than during power transmission ON,
Power transmission device.
A first moving body, a second moving body, and a moving body for transmission force ON / OFF control;
A power transmission device in which the first moving body and the second moving body face each other to form a facing surface (facing surface 1-2), and power is transmitted in a non-contact manner between the first moving body and the second moving body. Because
The second moving body has, on the surface on the opposite surface (opposing surface 1-2) side of the cylindrical magnetic body, a spiral convex magnetic body portion with the central axis direction of the cylindrical magnetic body as a pitch axis in the circumferential direction. There are a plurality of structural bodies with a plurality provided at equal intervals, and these structural bodies are spaced apart via non-magnetic bodies in the direction of the central axis, and the convex magnetic body portion has a helical shape as a whole of the second moving body. It is arranged in a single column so as to constitute,
The first moving body includes a convex magnetic body portion that can be opposed to the convex magnetic body portion of the second moving body on the surface on the facing surface (facing surface 1-2) side,
The movable body for transmission force ON / OFF control is configured such that magnetic flux enters and exits from the surface in the direction of the second moving body, and the magnetic flux is switched in and out depending on the position in the central axis direction. It is arranged so as to face the surface that is not on the facing surface 1-2) side, is relatively movable along the surface of the second moving body, and the first moving body and the second moving body according to the relative position with respect to the second moving body. It is configured so that power transmission to and from the body can be controlled on / off. When power transmission is on, the magnetic flux emitted from the moving body for transmission force on / off control passes through the second moving body component. It is configured to flow to one moving body and enter a moving body for transmission force ON / OFF control through another component arranged at intervals of the second moving body. When power transmission is OFF, transmission force is ON. Magnetic flux from the moving body for the / OFF control is the second moving body Through the flow of magnetic flux into the transmission power ON / OFF control for the mobile to enter the first motion body is configured to be less than during power transmission ON,
Power transmission device.
The power transmission device according to claim 1 or 2,
The first moving body, the second moving body, and the transmission force ON / OFF control moving body have units whose shape units are the length z0 in the central axis direction of the first moving body or the second moving body, respectively. 1 or 2 or more parts arranged in a row in the central axis direction, each of the first moving body, the second moving body, and the transmission force ON / OFF control moving body are configured integrally.
One unit of the first moving body has a length in the central axis direction of z1 (where z1 ≦ z0),
One unit of the second moving body includes a convex magnetic body portion, and two constituent portions having a length in the central axis direction of z2 / 2 are non-magnetic materials at intervals of z20 (where z20 = z0-z2). Are arranged in tandem in the direction of the central axis,
The above-mentioned constituent parts form a second moving body by forming a constituent body by itself or two,
One unit of the transmission force ON / OFF control moving body has a length in the central axis direction of z3 (where z3 ≦ z0), and magnetic flux enters and exits from the upper and lower portions of the central axis direction,
The transmission force ON / OFF control moving body is movable relative to the first moving body or the second moving body in the central axis direction,
The direction of magnetic flux entering and exiting from the top and bottom of each unit of the transmission force ON / OFF control moving body is almost reversed between the odd-numbered unit and the even-numbered unit counted from the bottom unit.
Power transmission device.
The power transmission device according to claim 1, 2 or 3,
The moving body for transmission force ON / OFF control is configured to move together with the second moving body so that the first moving body can rotate around the central axis and the second moving body can move in the direction of the central axis. Yes,
A power transmission device that can transmit rotational power and linear power to each other.
The power transmission device according to claim 1, 2 or 3,
The second moving body is configured to be rotatable around the central axis, and the first moving body is configured to be movable in the direction of the central axis.
A power transmission device that can transmit rotational power and linear power to each other.
The power transmission device according to claim 1, 2 or 3,
The first moving body and the second moving body are configured to be rotatable.
A power transmission device that can transmit rotational power to each other.
Both the first moving body and the second moving body have an axisymmetric shape having a central axis, and the central axes of the first moving body and the second moving body are common.
The power transmission device according to claim 4, 5 or 6.

Images