JPH0789740B2 - Rotation transmission mechanism - Google Patents

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a rotation transmission mechanism that transmits rotation of a drive shaft to a driven shaft that intersects the drive shaft at a twisted position.

[Conventional technology]

The rotation transmission mechanism described above is used, for example, by being incorporated in an operation mechanism for raising and lowering a slat and changing an angle with respect to a blind device interposed between a pair of glass plates. In other words, raising and lowering or changing the angle of the slat is usually performed by winding or unwinding the hanging string with respect to the rotating body by the rotation of the rotating body around the axis along the longitudinal direction of the slat, Since this type of blind device is often installed on the window of a building, it is difficult to operate it from the side of the window, so handle from the front of the window around the axis perpendicular to the window. This is because it is necessary to transmit the rotation of the handle to the shaft of the rotating body that intersects with the shaft of the handle at a twist position.

Conventionally, as the rotation transmission mechanism described above, a configuration in which hypoid gears attached to both a drive shaft and a driven shaft are fitted to each other, or a worm is attached to one of the drive shaft and the driven shaft and meshes with the other worm It is known that a worm wheel or the like is attached (references cannot be given).

[Problems to be Solved by the Invention]

However, the above-mentioned conventional configuration has the following problems.

First, since the transmission of rotation is mechanical via gears that mesh with each other, abrasion due to contact of the mechanical elements is unavoidable and durability is poor.

Further, since the transmission is direct through the gear, there is a risk that the transmission system may be damaged if the driven shaft is continuously rotated when there is an overload on the driven shaft due to foreign matter clogging, etc. In order to prevent this, it is necessary to interpose a safety device in the transmission system that causes the drive shaft and the driven shaft to rotate relative to each other at a predetermined load or more, which results in an increase in size of the device. further,
In order to maintain smooth transmission over a long period of time, lubricating oil must be replenished regularly, and frequent maintenance work is required.To avoid this, the entire rotary transmission mechanism is sealed in lubricating oil. If the configuration is stopped, a case for sealing is required, so that the size of the device is increased. In particular, as in the case where this rotation transmission mechanism is incorporated in the operation mechanism for the blind device interposed between the pair of glass plates described above, the driven shaft side part and the drive shaft side part are separated from each other in an airtight or watertight state. In such a case, since the operation tool and the operated object are composed of a series of transmission systems, a sealing mechanism for maintaining an airtight or watertight state is required, which complicates the configuration. It was something to come.

An object of the present invention is to provide a rotary transmission mechanism capable of eliminating the above-mentioned various problems.

[Means for Solving the Problems]

The characteristic structure of the rotary transmission mechanism according to the present invention is that the drive shaft and the driven shaft are surrounded by the N pole and the S pole at the intersection of the drive shaft and the driven shaft that intersects the drive shaft at a twisted position. Magnetic peripheral surface portions alternately arranged in the direction, and at least one of the magnetic peripheral surface portions separately formed on the drive shaft and the driven shaft, respectively, with respect to the axis of the drive shaft and the driven shaft, respectively. 2 in the axial direction on a plane that includes orthogonal lines
The two divided magnetic peripheral surface portions are arranged so as to be offset from each other around the axis.

The rotation transmission mechanism according to the present invention has, in addition to the above-described configuration, the other of the magnetic peripheral surface portions separately formed on the drive shaft and the driven shaft, with respect to the respective axes of the drive shaft and the driven shaft. May be divided into two in the axial direction by a plane including orthogonal lines, and the divided magnetic peripheral surface portions may be arranged so as to be deviated from each other around the axial center.

[Work]

 First, the operation of the rotation transmission mechanism described above will be described.

9A to 9C, (D) is a drive shaft and (S) is a driven shaft. Then, the magnetic peripheral surface portion (Ms) of the driven shaft (S) is phased between the N pole (Ns) and the S pole (Ss).
It is composed of magnets (hereinafter referred to as driven side magnets) (MsO) formed differently by 180 degrees. In addition, the magnetic peripheral surface portion (Md) of the drive shaft (D) is connected to the N pole (Nd1),
(Nd2) and S poles (Sd1), (Sd2) are formed with 180 degrees different phases to form a pair of magnets (Md1), (Md2) (hereinafter referred to as drive side first The magnet (Md1) and the driving side second magnet (Md2) are divided into two parts, and the pair of magnets (Md1) and (Md2) are connected to each other by the N pole (Nd2) of the driving side second magnet (Md2). Drive side first magnet (Md1)
With respect to the N pole (Nd1) of FIG. When the magnetic peripheral surface portion (Md) of the drive shaft (D) is expanded and shown in the circumferential direction, it can be represented as shown in FIG. 13, and the meshed portion in the drawing shows the magnetic field lines within the range. The shaded area in the figure is the range in which the lines of magnetic force enter.

Two magnets (Md) on the drive shaft (D) side in this configuration
1) and (Md2) and the lower surface of the driven shaft (S) side magnet (MsO) are shown in FIGS. 10 (a) to 10 (c).

In this configuration, in the state of FIG. 9 (a) and FIG. 10 (a), of the S pole (Ss) of the driven side magnet (MsO), the part (Ss2) on the drive side second magnet (Md2) side. Then, the second drive side
The attraction force between the N pole (Md2) of the magnet (Md2) and the repulsive force between the S pole (Sd2) cancel each other out, and the force to rotate the driven side magnet (MsO) does not occur. Side magnet (M
(Ss) of the S pole (Ss) on the drive side first magnet (Md1) side (Ss1) and the drive side first magnet (Md1) N pole (Nd1)
The driven-side magnet (MsO) rotates in the B'direction in the figure due to the attraction force between and.

From this state, when the drive shaft (D) is rotated in the direction of A ′ in the figure, in the S pole (Ss) of the driven magnet (MsO), the portion (Ss1) on the drive first magnet (Md1) side is Since the N pole (Nd1) of the drive side first magnet (Md1) goes away, its N pole (Nd
1) The attraction force acting between the drive side second magnet (Md2) and the drive side second magnet (Md2) is gradually reduced, but the N pole (Nd2) of the drive side second magnet (Md2) goes away. With S pole (Sd
2) comes closer, the repulsive force acting between it and the S pole (Sd2) gradually increases, and as a result, the S pole (Ss) of the driven magnet (MsO) that rotates in the B'direction in the figure is driven. From the second magnet (Md2) side to the upper side to move the driven shaft (S)
Further rotates in the direction B'in the figure, and
Transition to the state shown in Figure 10 (b).

When the drive shaft (D) is further rotated in the direction of A'in this figure, the S pole (Ss1) of the drive side first magnet (Md1) gradually approaches the N pole (Ns) of the driven side magnet (MsO). As a result, the attractive force acting between the S pole (Ss1) and the S pole (Ss1) gradually increases, and as a result, the N pole (Ns) of the driven magnet (MsO) moves downward and the driven shaft (S) B'in the figure
It rotates in the direction and shifts to the state shown in FIG. 9 (C) and FIG. 10 (C).

In the states shown in FIGS. 9 (c) and 10 (c), only the N pole of each magnet is changed to the S pole, and the states shown in FIGS.
Since it is the same as the state shown in FIG. 6 (a), the driven shaft (S) is rotated in the same manner as above by further rotating the drive shaft (D) in the direction A'in the figure from this state. Medium B '
Continue to rotate in the direction.

Also, although not shown, the magnetic peripheral surface portion (M
In d), the pair of magnets (Md1) and (Md2) are connected to each other, and the N pole (Nd2) of the drive side second magnet (Md2) is the drive side first magnet (Md2).
In the case of a configuration in which the phase is delayed by 90 degrees in the A'direction in the figure with respect to the N pole (Nd1) in 1),
The drive shaft (D) is operated by almost the same operation as described above.
The driven shaft (S) rotates in the C ′ direction in the drawing as the shaft rotates in the A ′ direction in the drawing.

Next, as shown in FIGS. 11A to 11C, the magnetic peripheral surface portion (Md) of the drive shaft (D) is connected to the N pole (Nd) and the S pole (Sd).
And a magnet (hereinafter referred to as the drive side magnet) (MdO) that is formed with the phase difference of 180 degrees.
The magnetic peripheral surface (Ms) of the driven shaft (S) is connected to the N pole (Ns
1), (Ns2) and S poles (Ss1), (Ss2) are formed with the phases different by 180 degrees, and each pair constitutes a pair of magnets (Ms1), (Ms2) (hereinafter, driven). Side first magnet (Ms
1), the driven side second magnet (Ms2) is divided), and the pair of magnets (Ms1) and (Ms2) are connected to the N side (Ns2) of the driven side second magnet (Ms2) on the driven side. First magnet (Ms1)
A case will be described in which the N pole (Ns1) is arranged such that the phase is delayed by 90 degrees in the B ″ direction in the drawing.

In this configuration, the upper surface of the magnet (Md0) on the drive shaft (D) side, and the two magnets (Ms1) on the driven shaft (S) side,
The positional relationship of the lower surface of (Ms2) is shown in Fig. 12 (a) to (c).

In this configuration, in the state of FIG. 11 (a) and FIG. 12 (a), the part (Sd1) on the driven side first magnet (Ms1) side of the S pole (Sd) of the drive side magnet (Md0). And there is an attractive force between the driven side first magnet (Ms1) and the N pole (Ns1). This attractive force is generated when the driven shaft (S) tries to rotate in either direction. When viewed from the axial direction of the driven shaft (S), one of the left and the right acts to assist the rotation and the other acts to prevent the rotation, and thus balances the rotation of the driven shaft (S). On the other hand, on the other hand, the part on the side of the driven second magnet (Ms2) (S
d2), there is a repulsive force between the driven side second magnet (Ms2) and the S pole (Ss2), and an attractive force between the driven side second magnet (Ms2) and the N pole (Ns2), A moment is generated to rotate the second driven magnet (Ms2) in the B ″ direction in the figure, and the moment causes the driven shaft (S) to rotate in the B ″ direction in the figure.

When the drive shaft (D) is rotated in the direction of A ″ from this state, the N pole (Nd) of the drive side magnet (Md0) approaches the N pole (Ns1) of the driven side first magnet (Ms1). Therefore, the repulsive force between the two poles (Nd) and (Ns1) gradually increases, and the N pole (Ns1) of the driven side first magnet (Ms1) that rotates in the B ″ direction in the figure due to the moment moves upward. The driven shaft (S) moves and rotates in the B ″ direction in the figure, and shifts to the state shown in FIG. 11 (b) and FIG. 12 (b).

From this state, when the drive shaft (D) is further rotated in the direction of A ″ in the figure, the N pole (Nd) of the drive side magnet (Md0) becomes the N pole (Ns1) of the driven side first magnet (Ms1). Since there is a repulsive force between them and an attractive force between the driven side first magnet (Ms1) and the S pole (Ss1), the moment that rotates the driven side first magnet (Ms1) in the B ″ direction in the figure is And its moment gradually increases with the rotation of the drive shaft (D), while the S pole (Sd) of the drive side magnet (Md0) is the driven side second magnet (Ms2).
, The attraction force generated between the N pole (Ns2) and the N pole (Ns2) gradually decreases, and as a result, the driven shaft (S) rotates in the B ″ direction in the figure due to the moment. , The state shown in FIG. 11 (C) and FIG. 12 (C).

In the states shown in FIGS. 11 (c) and 12 (c), only the north pole of each magnet is changed to the south pole, and the states shown in FIGS.
Since it is the same as the state shown in FIG. 6 (a), the driven shaft (D) is rotated in the same manner as described above by further rotating the drive shaft (D) in the direction of A ″ from the state. Medium B ″
Continue to rotate in the direction.

Also, although not shown, the magnetic peripheral surface portion (M) of the driven shaft (S) is
In (s), the pair of magnets (Ms1) and (Ms2) is connected to the driven side second magnet (Ms2) by the N pole (Ns2) of the driven side first magnet (Ms1).
When it is configured by arranging the N pole (Ns2) in the posture in which the phase is advanced by 90 degrees in the B ″ direction in the figure, the drive shaft (D) is operated by almost the same operation as described above. Driven shaft (S)
Rotates in the C "direction in the figure.

Finally, as shown in FIGS. 1A to 1C, the magnetic peripheral surface portion (Md) of the drive shaft (D) and the magnetic peripheral surface portion (Ms) of the driven shaft (S) are both N A pair of magnets each of which has poles that are deviated in the circumferential direction around the axis to form a split magnetic peripheral surface portion (hereinafter, in accordance with the above description, the drive-side first magnet (Md
1), a driving side second magnet (Md2), and a driven side first magnet (Ms1) and a driven side second magnet (Ms2)), and the pair of magnets (Md1), ( Md2),
(Ms1) and (Ms2), the N pole (Nd2) of the drive side second magnet (Md2) on the drive shaft (D) side is the drive side first magnet (Md).
The phase is delayed by 90 degrees in the direction A in the figure with respect to the N pole (Nd1) of 1), and on the driven shaft (S) side, the N pole (Ns2) of the driven side second magnet (Ms2). ) Is arranged at a position (G) whose phase is delayed by 90 degrees in the B direction in the figure with respect to the N pole (Ns1) of the driven-side first magnet (Ms1).

Two magnets (Md) on the drive shaft (D) side in this configuration
The positional relationships between the upper surfaces of 1) and (Md2) and the lower surfaces of the two magnets (Ms1) and (Ms2) on the driven shaft (S) side are shown in FIGS.

In this configuration, in the states shown in FIG. 1 (a) and FIG. 2 (a), the S pole (Sd1) of the drive side first magnet (Md1) and the S pole (Ss2) of the driven side second magnet (Ms2) are ), And
There is a repulsive force between the N pole (Nd1) of the drive side first magnet (Md1) and the N pole (Ns1) of the driven side first magnet (Ms1), while the drive side second magnet (Md2) is present. S pole (Sd2) and driven side first
If it is the N pole (Ns1) of the magnet (Ms1), the driven second magnet (Ms1)
Since there is a suction force between the N pole (2) and the N pole (Ns2), the driven shaft (S) rotates in the B direction in the figure by the respective forces.

If the drive shaft (D) is rotated in the direction A in this state, the N pole (Md1) of the drive-side first magnet (Md1) will move to the driven-side first magnet.
Since the repulsive force between the N pole (Ns1) of the magnet (Ms1) approaches and gradually increases, the magnetic force still acts between the other magnetic poles in the same direction.
The driven shaft (S) rotating in the direction further rotates in the direction B in the figure, and shifts to the state shown in FIG. 1 (b) and FIG. 2 (b).

In this state, the drive side first magnet (Md1) has the N pole (N
d1) has a repulsive force between the N pole (Ns1) of the driven side first magnet (Ms1) and the N pole (Ns2) of the driven side second magnet (Ms2), while the driving side second magnet (Md2) S pole (Sd2)
And the N pole (Ns2) of the driven side second magnet (Ms2), and between the N pole (Nd2) of the driving side second magnet (Md2) and the driven side first
Since there is an attractive force between the magnet (Ms1) and the N pole (Ss1), the driven shaft (S) is further rotated in the direction B in the figure by the respective forces.

When the drive shaft (D) is further rotated in the direction A in this state, the N pole (Nd2) of the drive side second magnet (Md2) approaches the S pole (Ss1) of the driven side first magnet (Ms1). As the attraction force between them gradually increases, and the magnetic force between the other magnetic poles is still used in the same direction, the driven shaft (S) rotating in the B direction in the figure is further moved in the B direction in the figure. It rotates and shifts to the state shown in FIG. 1 (C) and FIG. 2 (C).

The states shown in FIGS. 1 (c) and 2 (c) are the same as those shown in FIGS. 1 (a) and 2 (a), except that the north pole of each magnet is changed to the south pole. In addition, a force for rotating the driven shaft (S) in the B direction in the drawing acts, and further rotating the drive shaft (D) in the A direction in the drawing from this state causes the above-mentioned operation. Similarly, the driven shaft (S) continues to rotate in the B direction in the figure.

Also, although not shown, the magnetic peripheral surface portion (M
In d), the pair of magnets (Md1) and (Md2) are connected to each other, and the N pole (Nd2) of the drive side second magnet (Md2) is the drive side first magnet (Md2).
In the case of the arrangement in which the phase is advanced by 90 degrees in the direction A in the figure with respect to the N pole (Nd1) of 1), the drive shaft (D ) Is rotated in the direction A in the figure, the driven shaft (S) is rotated in the direction C in the figure.

Further, in the magnetic peripheral surface portion (Ms) of the driven shaft (S), the pair of magnets (Ms1) and (Ms2) are connected to the N pole (Ns2) of the driven side second magnet (Ms2) and the driven side first magnet (Ms1). When it is configured by arranging the N pole (Ns1) in the posture in which the phase advances by 90 degrees in the B direction in the figure, the drive shaft (D) is moved by almost the same operation as described above. The driven shaft (S) rotates in the direction C in the figure as it rotates in the direction A in the figure.

To summarize the movements of the above-mentioned three cases, N poles and S poles are alternately arranged in the circumferential direction at each intersection of the drive shaft and the driven shaft that intersects the drive shaft at a twisted position. The magnetic peripheral surface portions are formed, and one of the magnetic peripheral surface portions is divided into two in the axial direction in the plane including the lines orthogonal to the respective axial cores of the drive shaft and the driven shaft. By arranging the divided magnetic peripheral surface portion in an attitude around the axis in which the N pole of one divided magnetic peripheral surface portion is deviated from the N pole of the other divided magnetic peripheral surface portion, the magnetic force lines in each of the two divided magnetic peripheral surface portions are arranged. By rotating one magnetic peripheral surface portion that is a combination of the two divided magnetic peripheral surface portions as a drive shaft, the two divided magnetic peripheral surface portions with respect to the magnetic poles of the other magnetic peripheral surface portion that is the driven shaft are biased. Perpendicular to the axis of the driven shaft The driven shaft is rotated by the imbalance in one direction, and by rotating the other magnetic peripheral surface part as the drive shaft, the two divided magnetic parts of the one magnetic peripheral surface part to be the driven shaft are rotated. The magnetic force of the magnetic pole of the other magnetic peripheral surface portion with respect to each peripheral surface portion causes imbalance in the direction orthogonal to the axis of the driven shaft,
As a result, the driven shaft is rotated.

Then, in the magnetic peripheral surface portion that is divided into the two divided magnetic peripheral surface portions, by making the deviation directions of the N poles of these two divided magnetic peripheral surface portions opposite to each other, this magnetic peripheral surface portion is located on the drive shaft side. Alternatively, regardless of whether it is formed on the driven shaft side, the driven shaft can be rotated in the opposite direction by rotating the drive shaft in the same direction.

Although not illustrated and described, in the magnetic peripheral surface portion on the drive shaft side and the magnetic peripheral surface portion on the driven shaft side, the N pole and the S pole of either one of the magnetic peripheral surface portions are described. When the number of magnetic pole pairs to be combined is different from the number of magnetic pole pairs on the other magnetic peripheral surface portion, the number of rotations should be different when transmitting the rotation of the drive shaft to the driven shaft. Therefore, the rotation transmission mechanism can be provided with the function of the speed reduction mechanism or the speed increase mechanism without providing any special device.

Therefore, as a whole, the rotation transmission mechanism according to the present invention displaces one of the magnetic peripheral surface portions of the drive shaft and the driven shaft in the direction of the magnetic force line at the intermediate portion, so that the magnetic peripheral surface portions are relatively rotated. An unbalance of the magnetic force is generated between the other magnetic peripheral surface portions, and the rotation of the drive shaft can be transmitted to the driven shaft in a non-contact manner by the unbalance of the magnetic force.

〔The invention's effect〕

As described above, the rotary transmission mechanism according to the present invention enables non-contact transmission using magnetic force between the drive shaft and the driven shaft that intersect at the twisted position, and thus has the conventional configuration. It is possible to eliminate the need for providing a mechanical transmission mechanism such as a gear, which is required in the above. As a result, it is possible to eliminate wear and tear due to contact of mechanical elements in the rotary transmission mechanism, and also to eliminate the supply of lubricating oil for ensuring smooth transmission over a long period of time. Further, since the transmission is not direct, it is possible to prevent damage to the transmission system by slipping in the rotary transmission mechanism when an overload occurs on the driven shaft side without providing another safety device. In addition to that, in particular, in the case of separating the driven shaft side portion from the drive shaft side portion to the airtight state or the watertight state, as in the case of the embodiment described later, from the operation tool to the operated object. The transmission system can be divided into parts of this rotary transmission mechanism, so that the driven shaft side part can be maintained in a highly airtight state or a watertight state without attaching a seal structure to the transmission system. be able to.

Therefore, as a whole, it is possible to provide a rotary transmission mechanism that is simple in construction, has less wear and damage to the transmission system, and requires less maintenance work, and is excellent in terms of cost and reliability.

〔Example〕

 Embodiments of the present invention will be described below with reference to the drawings.

As shown in FIG. 3, a pair of glass plates (2A), which are separated by a predetermined distance, are attached to a sash frame (1) assembled in a rectangle.
(2B) is fitted and the pair of glass plates (2A), (2
A double-layered glass fitting with a blind is constructed through a blind (3) between B).

This blind (3) consists of a pair of glass plates (2A), (2
The bottom rail (3A) is substantially parallel to B), and the plurality of slats (3B) are substantially parallel to the bottom rail (3A). The bottom rail (3A) and the slat (3B) are both attached so as to be rotatable around an axis parallel to the glass plates (2A) and (2B).

The slat angle changing operation device (SA) for rotating the bottom rails (3A) and the slats (3B) to change their angles (hereinafter collectively referred to as slat angle change) is a glass fitting. Is provided on the upper part of.

In this slat angle changing operation device (SA), as shown in FIGS. 3 and 4, an operating body (2A) and (2B) provided between the blind (3) and the pair of glass plates (2A) and (2B) is interposed. 4)
A rotary transmission mechanism (X) is interposed between the operating body (4) and an operating tool (5) arranged so as to face the operating body (4) at a twisted position.

The operating body (4) is rotatable about a shaft center (X ₁ ) parallel to the pair of glass plates (2A) and (2B) and along the longitudinal direction of the slat (3B) of the blind (3). Is attached to. The operation tool (5) is a pair of glass plates (2A),
It is attached so that it can rotate around an axis (X ₂ ) orthogonal to (2B).

The operation body (4) is provided at one end of the glass fitting. A pair of pulleys (7) provided at two positions in the width direction of the glass fitting are interlocked with the operating body (4) via a connecting rod (6). Both ends of the ladder cord (8) wound around the pair of pulleys (7) are fixed to both side edges of the slats (3B) and the bottom rail (3A), respectively.

On the other hand, an operating handle (9) is integrally connected to the operating tool (5). The operation tool (5) is a case (10).
The operation handle (9) is stored in the case (1
From 0).

The operation tool (5) is a drive shaft (D) rotated by a rotating operation of the operation handle (9), and the operation body (4) is a drive shaft by the rotation transmission mechanism (X) ( 5)
Is a driven shaft (S) to which the rotation is transmitted. Then, magnetic peripheral surface portions (Md) and (Ms), in which N poles and S poles are alternately arranged in the circumferential direction, are formed on each of the intersecting portions (P) of the operating tool (5) and the operating body (4). I am doing it.

The operating body (4) is provided inside the pair of glass plates (2A) and (2B). On the other hand, the operating tool (5) has a magnetic peripheral surface (Md) inside a recess (2a) formed in a part of one glass plate (2A) immediately above the installation position of the operating body (4). Is provided in a state of being fitted.

The magnetic peripheral surface portion (Md) of the drive shaft (D) and the magnetic peripheral surface portion (Ms) of the driven shaft (S) are, as shown in FIGS. A pair of magnets each having a posture about the axis that is deviated in the circumferential direction to form a divided magnetic peripheral surface portion (hereinafter, drive side first magnet (Md1), drive side second magnet (Md2),
Also, the driven side first magnet (Ms1) and the driven side second magnet (Ys
2)), and the pair of magnets (Md1), (Md2), (Ms1) and (Ms2) are connected to the drive side second magnet (Md2) on the drive shaft (D) side. N pole (Nd
2) is arranged such that the phase is delayed by 90 degrees in the A direction in the figure with respect to the N pole (Nd1) of the drive side first magnet (Md1), and
On the driven shaft (S) side, N of the driven side second magnet (Ms2)
The pole (Ns2) is arranged such that its phase is delayed by 90 degrees in the B direction in the figure with respect to the N pole (Ns1) of the driven-side first magnet (Ms1).

Next, the mechanism of transmission of rotation between the drive shaft (D) and the driven shaft (S) described above will be described. To facilitate the explanation, the upper surfaces of the two magnets (Md1) and (Md2) on the drive shaft (D) side, and the two magnets (Ms1) on the driven shaft (S) side,
The positional relationship of the lower surface of (Ms2) is shown in FIGS.

In the state shown in FIG. 1 (a) and FIG. 2 (a),
Between the S pole (Sd1) of the drive side first magnet (Md1) and the S pole (Ss2) of the driven side second magnet (Ms2), and between the S pole (Nd1) of the drive side first magnet (Md1) There is a repulsive force between the driven side first magnet (Ms1) and the N pole (Ns1), while the driven side second magnet (Md2) has the S pole (Sd2) and the driven side first magnet (Ms1).
Of the driven shaft (S), because there is also attractive force between the N pole (Ns1) and the N pole (Ns2) of the driven side second magnet (Ms2).
Rotates in the B direction in the figure by each of these forces.

When the drive shaft (D) is rotated in the direction A from this state, the N pole (Nd1) of the drive-side first magnet (Md1) is moved to the driven-side first magnet.
Since the repulsive force between the magnets (Ms1) approaches the N pole (Ns1) and gradually increases, the magnetic force between the other magnetic poles still acts in the same direction.
The driven shaft (S) rotating in the direction further rotates in the direction B in the figure, and shifts to the state shown in FIG. 1 (b) and FIG. 2 (b).

In this state, the drive side first magnet (Md1) has the N pole (N
There is also a repulsive force between the d1) and the N pole (Ns1) of the driven side first magnet (Ms1) and the N pole (Ns2) of the driven side second magnet (Ms2), while the driving side second magnet (Ns1) Between the S pole (Sd2) of Md2) and the N pole (Ns2) of the driven side second magnet (Ms2), and between the N pole (Nd2) of the driving side second magnet (Md2) and the driven side first magnet ( Since the attraction force is present between the Ms1) and the S pole (Ss1), the driven shaft (S) is further rotated in the B direction in the figure by the respective forces.

When the drive shaft (D) is further rotated in the direction A in this state, the N pole (Nd2) of the drive side second magnet (Md2) approaches the S pole (Ss1) of the driven side first magnet (Ms1). The attraction force between them gradually increases, and the magnetic force between the other magnetic poles still acts in the same direction, so that the driven shaft (S) rotating in the B direction in the figure further moves in the B direction in the figure. It rotates and shifts to the state shown in FIG. 1 (C) and FIG. 2 (C).

The states shown in FIGS. 1 (c) and 2 (c) are the same as those shown in FIGS. 1 (a) and 2 (a), except that the north pole of each magnet is changed to the south pole. In addition, a force for rotating the driven shaft (S) in the B direction in the drawing acts, and further rotating the drive shaft (D) in the A direction in the drawing from this state causes the above-mentioned operation. Similarly, the driven shaft (S) continues to rotate in the B direction in the figure.

That is, by biasing one of the magnetic peripheral surface portions of the drive shaft and the driven shaft in the direction of the magnetic force line at the intermediate portion, the magnetic force is generated between the magnetic peripheral surface portion and the other magnetic peripheral surface portion as the magnetic peripheral surface portions rotate relative to each other. An imbalance is generated and the rotation of the drive shaft can be transmitted to the driven shaft in a non-contact manner by the imbalance of the magnetic force.

As a result, when transmitting the rotation between the drive shaft (D) and the driven shaft (S) that intersect at the twisted position, mechanical elements such as gears can be eliminated, so that the contact caused by use can cause It is possible to eliminate wear and tear and damages caused by overload on the driven shaft (S) side, and maintenance work such as lubricating oil supply can be eliminated, so that reliable rotation transmission is guaranteed for a long period of time. It

In addition, a pair of glass plates (2A), (2
The internal space of B) can be kept airtight with the outside, and dust and dirt can be prevented from entering and the blind (3) can be smoothly moved up and down and the slat angle can be changed over a long period of time.

[Another embodiment]

 Next, another embodiment of the present invention will be listed.

<1> Although not shown, the magnetic peripheral surface portion (M
In d), the pair of magnets (Md1) and (Md2) are connected to each other, and the N pole (Nd2) of the drive side second magnet (Md2) is the drive side first magnet (Md2).
It may be configured by arranging the N pole (Nd1) of 1) in a posture in which the phase advances by 90 degrees in the A direction in the drawing. In this case, the driven shaft (S) is rotated in the direction C in the drawing along with the rotation of the drive shaft (D) in the direction A in the drawing by almost the same operation as described above.

Further, in the magnetic peripheral surface portion (Ms) of the driven shaft (S), the pair of magnets (Ms1) and (Ms2) are connected to the driven side second magnet (Ms2) by N.
The pole (Ns2) may be arranged such that the phase advances 90 degrees in the B direction in the figure with respect to the N pole (Ns1) of the driven-side first magnet (Ms1). In this case, the driven shaft (S) is rotated in the direction C in the drawing along with the rotation of the drive shaft (D) in the direction A in the drawing by almost the same operation as described above.

Utilizing this, the rotation of one drive shaft (D) can be transmitted to the two driven shafts (S) as rotations in different directions. FIG. 5 shows an example thereof.

In this embodiment, a drive shaft (D) and a driven shaft (Sa) are respectively provided at intersections (Pa) and (Pb) of one drive shaft (D) and two driven shafts (Sa) and (Sb). , (Sb) and magnetic peripheral surface (Mda), (Mdb), (Msa), (M
sb) has been formed. Magnetic surface of drive shaft (D) (Md
In both a) and (Mdb), the divided magnetic peripheral surface (Md
a1), (Mda2), (Mdb1), (Mdb2) to the N pole (Nd
a1), (Nda2), (Ndb1), and (Ndb2) are arranged so as to be displaced in the same direction. Further, in the magnetic peripheral surface portions (Msa) and (Msb) of the two driven shafts (Sa) and (Sb), the divided magnetic peripheral surface portions (Msa1), (Msa2), (Msb1),
(Msb2) has its north poles (Nsa1), (Nsa2), (Nsb1),
(Nsb2) are arranged so that they are displaced in opposite directions.

In this configuration, the drive shaft (D) is driven by the principle described above.
Is rotated in the direction I in the figure, the first
The driven shaft (Sa) rotates in the J direction in the drawing, and the second driven shaft (Sb) on the right side in the drawing rotates in the K direction in the drawing.

<2> For one drive shaft (D), the drive shaft (D)
Two or more driven shafts (Sn) that both rotate in the same direction with the rotation of one direction, or two or more driven shafts (Sn) that rotate in the opposite direction may be provided. As one example, it is assumed that two or more driven shafts (Sn) rotate in the same direction, and a plurality of driven shafts (Sn) shown in FIG. There is a linear roller conveyor that conveys articles by.

<3> In addition to the case where the drive shaft (D) and the driven shaft (S) are arranged so as to be orthogonal to each other in a direction view orthogonal to both axes, as in the case of the previous embodiment, The drive shaft (D) and the driven shaft (S) may be arranged in a posture in which they intersect with each other at another angle when viewed from that direction. In short, the drive shaft (D) and the driven shaft (S) are not twisted, that is, not on the same plane. Therefore, it may be arranged in an intersecting posture. For example, as an example thereof, a curved roller conveyor shown in FIG. 7 can be cited as a modification of the linear roller conveyor previously shown in FIG.

<4> In the magnetic peripheral surface portion (Md) on the drive shaft (D) side and the magnetic peripheral surface portion (Ms) on the driven shaft (S) side, the N pole and the S pole on either one of the magnetic peripheral surface portions (Md or Ms). The number of magnetic pole pairs to be combined with the poles may be different from the number of magnetic pole pairs on the other magnetic peripheral surface portion. An example thereof is shown in FIG.

In this embodiment, in the magnetic peripheral surface portion (Md) on the side of the drive shaft (D), the two divided magnetic peripheral surface portions (Md1) and (Md2) both have a phase difference of 180 degrees in the circumferential direction and form an N pole ( Nd1), (Nd
2) and S poles (Sd1) and (Sd2) are formed,
The two divided magnetic peripheral surfaces (Md1) and (Md2) are arranged such that their N poles (Nd1) and (Nd2) are 90 degrees out of phase with each other, and the magnetic peripheral surface on the driven shaft (S) side. In (Ms), the two divided magnetic peripheral surface portions (Ms1), (Ms1)
s2) have a phase difference of 90 degrees in the circumferential direction and have N poles (Ns1
a), (Ns1b), (Ns2a), (Na2b) and S pole (Ss1a),
(Ss1b), (Ss2a), and (Ss2b) are formed, and these two divided magnetic peripheral surface portions (Ms1) and (Ms2) are
These N poles are arranged so that their phases differ by 45 degrees.

In this case, when transmitting the rotation of the drive shaft (D) to the driven shaft (S), it is possible to make the number of rotations different, and without providing any other special device, the rotation transmission mechanism (X) It becomes possible to have a function of a speed reduction mechanism or a speedup mechanism.

<5> Drive shaft (D) side magnetic peripheral surface portion (Md) divided into two divided magnetic peripheral surface portions (Md1), (Md2) or divided into two divided magnetic peripheral surface portions (Ms1), (Ms2) Driven shaft (S)
Side magnetic peripheral surface portion (Ms), the divided magnetic peripheral surface portion (Ms
The positions of 1) and (M2) can be appropriately changed. For example, in the embodiment shown in FIGS. 1 (a) to 1 (c), the divided magnetic peripheral surface portion (Md1) on the drive shaft (D) side, (Md2)
Alternatively, the divided magnetic peripheral surface portions (Ms1), (Ms) on the driven shaft (S) side
2) You may place each other at an angle other than 90 degrees,
In short, in the two divided magnetic peripheral surface portions (M1) and (M2), the N pole (N1) of one divided magnetic peripheral surface portion (M1) is offset from the N pole (N2) of the other divided magnetic peripheral surface portion (M2). It suffices if it is arranged in a posture around the axis to be positioned.

<6> Either of the magnetic peripheral surface portion (Md) on the drive shaft (D) side or the magnetic peripheral surface portion (Ms) on the driven shaft (S) side,
It may be configured such that it is not divided in the axial direction. An example is shown below.

In the examples shown in 9th (a) to (c), the magnetic peripheral surface portion (Ms) on the driven shaft (S) side is not divided in the axial direction.

In this embodiment, the magnetic peripheral surface portion (M) of the driven shaft (S) is
s) is composed of a magnet (MsO) formed by making the N pole (Ns) and the S pole (Ss) different in phase by 180 degrees. Further, the magnetic peripheral surface portion (Md) of the drive shaft (D) has a phase of 18 (N poles (Nd1), (Nd2) and S poles (Sd1), (Sd2)).
A pair of magnets (Md1) and (Md2) (hereinafter, referred to as a drive side first magnet (Md1) and a drive side second magnet (Md2)), each of which is formed differently by 0 degrees and constitutes a divided magnetic peripheral surface portion. With a divided structure, the pair of magnets (Md1) and (Md2) are
The N pole (Nd2) of the drive side second magnet (Md2) has a phase in the A'direction in the figure with respect to the N pole (Nd1) of the drive side first magnet (Md1).
It is configured by arranging it in a 90 degree advanced posture.

Two magnets (Md) on the drive shaft (D) side in this configuration
1) and (Md2) and the lower surface of the driven shaft (S) side magnet (MsO) are shown in FIGS. 10 (a) to 10 (c).

In this configuration, by rotating the drive shaft (D) in the direction A ′ in the figure from the state of FIG. 9 (a) and FIG. 10 (a), the driven shaft (S) moves in the direction B ′ in the figure. Rotate. Although not shown, the magnetic peripheral surface portion (Md) of the drive shaft (D)
In, a pair of magnets (Md1) and (Md2) are connected to the second drive side.
The north pole (Nd2) of the magnet (Md2) is arranged such that its phase is delayed by 90 degrees in the A'direction in the figure with respect to the north pole (Nd1) of the drive side first magnet (Md1). In this case, the driven shaft (S) rotates in the C'direction in the drawing as the drive shaft (D) rotates in the A'direction in the drawing.

In the embodiment shown in FIGS. 11A to 11C, the magnetic peripheral surface portion (Md) on the drive shaft (D) side is not divided in the axial direction.

In this configuration, the magnetic peripheral surface portion (Md) of the drive shaft (D)
Is composed of a magnet (MsO) formed by changing the positions of the N pole (Nd) and the S pole (Sd) at different positions by 180 degrees, and the magnetic peripheral surface portion (Ms) of the driven shaft (S) is the N pole. (Ns
1), (Ns2) and S poles (Ss1), (Ss2) are formed with the phases different by 180 degrees, and each pair constitutes a pair of magnets (Ms1), (Ms2) (hereinafter, driven). Side first magnet (Ms
1), the driven side second magnet (Ms2) is divided), and the pair of magnets (Ms1) and (Ms2) are connected to the N side (Ns2) of the driven side second magnet (Ms2) on the driven side. First magnet (Ms1)
With respect to the N pole (Ns1), the phase is delayed by 90 degrees in the B ″ direction in the figure.

In this configuration, the upper surface of the magnet (Md0) on the drive shaft (D) side, and the two magnets (Ms1) on the driven shaft (S) side,
The positional relationship of the lower surface of (Ms2) is shown in Fig. 12 (a) to (c).

In this configuration, the drive shaft (D) is rotated in the A ″ direction in the drawing from the state shown in FIG. 11 (a) and FIG. 12 (a) so that the driven shaft (S) is moved in the B ″ direction in the drawing. Rotate. Also, although not shown, the magnetic peripheral surface portion (Ms) of the driven shaft (S)
In, the pair of magnets (Ms1) and (Ms2) is connected to the N pole (Ns2) of the driven side second magnet (Ms2) by the N side of the driven side first magnet (Ms1).
When it is configured by arranging the pole (Ns1) so that the phase is advanced by 90 degrees in the B ″ direction in the figure, the drive shaft (D) can be moved by almost the same operation as described above. The driven shaft (S) rotates in the C "direction in the drawing as it rotates in the middle A" direction.

<7> The magnets forming the magnetic peripheral surface portions (Md) and (Ms) are
It may be a permanent magnet or an electromagnet, and its type is not limited.

<8> In the above embodiment, the rotation transmission mechanism (X) of the present invention is used.
An example of applying the above to a double-layered glass fitting with a blind is shown. In this case, in the above embodiment, the configuration for changing the angle of the slat (3B) of the blind (3) has been described, but the operation body (4) and the operation tool (5) are interlocked using magnetic force. The structure may be applied to the structure for expanding and contracting the blind (3) in the juxtaposed direction of the slats (3B). In that case, the operation body for expanding and contracting the blind may be used also as the operation body (4) for changing the slat angle described in the embodiment of Kino, or may be provided separately.

<9> The rotary transmission mechanism (X) according to the present invention can be applied to various transmission mechanisms in addition to the operation mechanism in the double-paned glass fitting with a blind described in the previous embodiment.

<10> Reference numerals are added to the claims for convenience of comparison with the drawings, but the present invention is not limited to the structures and methods shown in the accompanying drawings by the description.

[Brief description of drawings]

1 to 4 show an embodiment of a rotary transmission mechanism according to the present invention, and FIGS. 1 (a) to 1 (c) are perspective views showing the movement of a drive shaft and a driven shaft, and FIG. (A) to (c) are explanatory views showing the positional relationship between the magnetic peripheral surface portion of the drive shaft and the magnetic peripheral surface portion of the driven shaft. FIG. 3 is a vertical sectional view of the blind.
The figure is a perspective view of a main part. 5 to 12 show another embodiment, and FIG. 5 is a perspective view of a main part, FIG. 6 and FIG.
Figure is a perspective view of the roller conveyor, Figure 8 is a perspective view of the main parts,
9 (a) to 9 (c) are perspective views showing the movement of the drive shaft and the driven shaft, and FIGS. 10 (a) to 10 (c) are FIG. 9 (a).
11A to 11C are explanatory views showing the positional relationship between the magnetic peripheral surface portion of the drive shaft and the magnetic peripheral surface portion of the driven shaft in the embodiment shown in FIGS.
FIGS. 12 (a) to 12 (c) are perspective views showing the movements of the drive shaft and the driven shaft of still another embodiment, and FIGS. 12 (a) to 12 (c).
FIG. 12 is an explanatory diagram showing the positional relationship between the magnetic peripheral surface portion of the drive shaft and the magnetic peripheral surface portion of the driven shaft in the embodiment shown in FIGS. 11 (a) to 11 (c). FIG. 13 shows FIG. 9 (a) to (c).
FIG. 6 is a development view of a magnetic peripheral surface portion of the drive shaft in the embodiment shown in FIG.

Claims (2)

[Claims] 1. The rotation of a drive shaft (D) is converted into that of the drive shaft (D).
A rotary transmission mechanism that transmits to a driven shaft (S) that crosses at a twisted position with respect to the drive shaft (D) and the driven shaft (S) at the intersection of the drive shaft (D) and the driven shaft (S). S) and magnetic peripheral surface portions (Md) and (Ms), in which N poles and S poles are alternately arranged in the circumferential direction, are respectively formed, and the drive shaft (D) and the driven shaft (S) are separately formed. At least one of the formed magnetic peripheral surface portions (Md) and (Ms) is in the axial direction in a plane including lines orthogonal to the axial axes of the drive shaft (D) and the driven shaft (S). A rotary transmission mechanism that is divided into two and is arranged such that the divided magnetic peripheral surface portions are offset from each other around the axis. 2. The other of the magnetic peripheral surface portions (Md), (Ms) formed separately on the drive shaft (D) and the driven shaft (S), respectively. ) Is divided into two in the axial direction by a plane including a line orthogonal to each of the axial cores, and the divided magnetic peripheral surface portions are arranged such that they are displaced from each other about the axial center. The rotary transmission mechanism according to Item 1.