JPH10178773A - Power transmitter using magnet and multilayer glass using the transmitter - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a power transmitter which can control the transmitted rotating power constant when the rotating power is transmitted by a non-contact mechanism and also to provide a multi-layer glass which allow an opening and closing body such as a blind enclosed inside, to be operated from outside using the power transmitter. SOLUTION: Two cylindrical rotary bodies 21, 22 are located so that their axes are parallel to each other. The outer surfaces of these rotary bodies 21, 22 are magnetized in the shape of a helix or stripe. Because of this structure, a non-contact rotating power transmitter can be obtained. If this device is used in a multilayer glass, an opening and closing body, such as a blind 3 enclosed inside, can be operated from outside.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a power transmission device having a plurality of cylindrically-rotated magnetized rotors arranged in parallel and utilizing the magnetic force of the rotors. Furthermore,
The present invention relates to a double glazing that opens and closes an opening / closing body such as a blind sandwiched between a pair of glasses using the power transmission device.

[0002]

2. Description of the Related Art In a configuration in which power such as rotational force is transmitted from one system to another system, a contact mechanical type using gears or the like is generally used. However, if there is an obstacle between one system and the other system, a non-contact type must be used because a contact mechanical type configuration cannot be used. In such a case, a power transmission device using magnetic force is often used.

[0003] In a double-glazed glass, a spacer called a spacer made of aluminum or the like is sandwiched only at the periphery of a plate glass between one or more pairs of plate glasses, and together with this spacer, the periphery of the plate glass is made of resin. It is a structure that seals with a sealant. Therefore, it is impossible to transmit power from outside to the glass sandwiched between the glass sheets by a contact mechanical structure.

[0004] However, if the blinds are sandwiched between a pair of glass sheets of the double-glazed glass and the blinds can be opened and closed by an external operation, the blinds are sealed in the double-glazed glass and do not become dirty. In this way, it is possible to make a very beautiful double-glazed glass with a blind function.

The applicant of the present invention has previously devised a device utilizing magnetic force as a non-contact power transmission configuration, and has filed an application for using the device as a device for opening and closing a blind in a double glazing. Japanese Patent Publication No. Hei 7-23031).

The invention of Japanese Utility Model Publication No. 7-23031 will be described below with reference to FIGS. In the structure of the double glazing having the blinds therein, a driven side rotating body is provided between a pair of plate glasses 2 arranged to form a sealed space, and the driven side rotating body and one sheet glass are provided. The drive-side rotating body is mounted facing each other with the.

[0007] The blind in the double glazing is connected to the driven rotating body, and opens and closes by the action of the rotating body. As shown in FIG. 11, rectangular magnets 50 and 5 are provided inside the driving-side rotating body and the driven-side rotating body.
1 is built in, and this magnet is composed of two units 52, 53 and 54, 55, respectively.

The magnet 50 composed of two units 52 and 53 built in the driving-side rotating body is connected to one unit 5
The direction of the magnetic pole of No. 3 is changed by 90 degrees from that of the other unit 52. The magnet 51 composed of the two units 54 and 55 built in the driven-side rotator has a magnetic pole orientation of one unit 55 similar to that of the magnet 50 of the drive-side rotator. Has been changed.

By installing the magnet 50 of the driving-side rotating body and the magnet 51 of the driven-side rotating body as described above, when the driving-side rotating body is rotated by an operation code or the like as shown in FIG. And the change in magnetic flux density, the driven rotator rotates in synchronization with the drive rotator. As a result, the rotational force can be transmitted from the driving-side rotating body to the driven-side rotating body without contact.

FIG. 13 shows the relationship between the rotation angle of the magnet and the coupling force in the above case. The details will be described later.

[0011]

However, the transmission of the rotational force between the magnets composed of the two units described above involves:
The following points can be improved. That is, as shown in FIG. 13, since the coupling force between the magnets 50 and 51 changes depending on the rotation angle, the rotation of the magnets 50 and 51 cannot be performed smoothly. This is, as shown in FIG.
Consists of two rectangular parallelepiped units 52, 53 and 54, 55, respectively, and the direction of the magnetic pole is
3 and change the angle by 90 degrees.
This is because, even if the distance between the rotation axes of the magnets 50 and 51 is the same, the direction of the magnetic poles and the magnetic flux density change in a cycle of 90 degrees. Also, the magnets 50, 51
Is a rectangular parallelepiped, even if the distance between the rotation axes of the magnets 50 and 51 is constant, the interval between the outer peripheral surfaces changes according to the rotation angle of the magnets 50 and 51.
Another reason is that the rotation angle of 51 changes in a cycle of 90 degrees in the same manner as described above. As a result, it is difficult to stop the magnets 50 and 51 at an angle where the coupling force between the magnets 50 and 51 is small, and the magnets 50 and 51 cannot be fixed at an arbitrary rotation angle.

The present invention has been made by paying attention to the points which can be improved in the conventional technology. The purpose is to minimize the change in the coupling force due to the rotation angles of the magnets 50 and 51 so that the magnet 5
The rotation of 0,51 can be smoothed, and similarly, the magnet 5
An object of the present invention is to provide a power transmission device capable of fixing the rotation angle of 0,51 to an arbitrary angle.

[0013] It is another object of the present invention to provide a double-glazed glass having a blind which has a smoother opening / closing operation and can be fixed at an arbitrary position by using the power transmission device.

[0014]

Means for Solving the Problems In order to achieve the above object, the invention of a power transmission device using magnets according to the first aspect of the present invention provides a cylindrical power transmission with a smooth outer peripheral surface on a plurality of parallel axes. The rotating bodies are arranged at intervals so as to face each other on their outer peripheral surfaces, and the outer peripheral surfaces of these rotating bodies are magnetized, and the magnetization pattern can be transmitted between the rotating bodies. It was done.

According to a second aspect of the present invention, there is provided a power transmission device using magnets, wherein the magnetization pattern is helical with respect to the axis of the rotating body in the first aspect.

According to a third aspect of the present invention, there is provided a power transmission device using magnets, wherein the helical shape is reversed at least once on the outer peripheral surface of the rotating body.

According to a fourth aspect of the present invention, the number of magnetic poles on the outer peripheral surface of the rotating body is in the direction of the end face of the rotating body. , 2 to 14.

According to a fifth aspect of the present invention, there is provided a power transmission device using magnets according to the first aspect of the present invention, wherein the magnetization pattern extends in parallel to the axial direction of the rotating body.

According to a sixth aspect of the present invention, in the power transmission apparatus using magnets according to the fifth aspect, the number of magnetic poles on the outer peripheral surface of the rotating body is 6 to 20 when viewed in the direction of the end face of the rotating body. It is something that is.

According to a seventh aspect of the present invention, there is provided a power transmission device using magnets according to any one of the first to sixth aspects, wherein magnetic poles in a magnetized pattern are arranged in a lattice pattern. .

According to an eighth aspect of the present invention, there is provided a double-glazing unit provided with a power transmission device using a magnet according to any one of the first to seventh embodiments, wherein a rotating body on the driving side is provided. On the outside, the driven rotating body is placed in the internal space,
An opening / closing body that is opened and closed by the rotation of the driven rotating body is provided in the space between the glasses.

[0022]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, embodiments of the present invention will be described in detail. First, the configuration of the double glazing will be described. As shown in FIGS. 1 and 8, the structure of the double-layer glass is schematically shown by a sash frame 1, a case 6, a pair of plate glasses 2, a spacer 4, a blind 3, a driving-side rotating body 21,
It is composed of the driven-side rotating body 22, the operation code 5, and the like.

The sash frame 1 has a U-shaped cross section, and is attached to a house window or the like. The sash frame 1 is fixed so as to hold the pair of glass sheets 2 and surrounds the entire circumference of the four sides of the pair of glass sheets 2. The case 6 is provided on the sash frame 1 at the upper portion when the double glazing is attached to a house or the like, that is, at the upper side portion. The material of the sash frame 1 and the case 6 is usually aluminum, but recently, a synthetic resin is used for the purpose of improving the heat insulating effect.

As shown in FIG. 1, this drive-side rotating body 21
Is a cylindrical main body 23, a small-diameter shaft portion 24 extending in both directions along the axis X1 from the main body, and a body winding 2 that exists between the main body and the shaft portion and receives rotational power from outside.
5. The shaft portion 24 is rotatably supported by the bearing 14, and the operation cord 5 is connected to the body winding 25. Therefore, the driving side rotating body 21 is
It is configured to rotate by pulling the operation code 5. These series of components are housed inside the case 6.

The pair of glass sheets 2 keeps the space between the glass sheets 2 uniform by sandwiching the spacers 4 on all four sides. All four sides of the pair of plate glasses 2 protrude from the outer peripheral surface 9 of the spacer 4 by about 10 mm.

A resin sealant 8 is filled on all four sides of the concave portion surrounded on three sides by the edges of the pair of plate glasses 2 and the outer peripheral surface 9 of the spacer. When the sealant 8 cures, the exchange between the inside of the double-glazed glass and the outside air is completely shut off. Further, a desiccant 7 is packed inside the spacer 4, and after the double glazing is sealed,
The desiccant 7 gradually absorbs moisture in the air in the double glazing. In this way, moisture is absorbed, and finally the humidity becomes zero.
%, The double glazing hardly causes internal dew condensation and has high heat insulating performance.

A driven side rotating body 22 is provided on the upper side of the spacer 4. This driven side rotating body 22
The drive-side rotator 21 has the same configuration as that of the drive-side rotator 21. The drive-side rotator 21 and the main body 23 are rotatably mounted by the bearing 14 in such a manner that the outer peripheral surfaces of the drive-side rotator 21 and the main body 23 face each other with one glass therebetween. The axes of the driven-side rotator 22 and the drive-side rotator 21 are set in parallel.

The rotating rod 15 is joined to the driven-side rotating body 22 in a direction extending along the rotation axis thereof. A pulley 16 for opening and closing the blind 3 is joined to the rotating rod 15.

The blind 3 has a bottom rail 12, slats 13, and a ladder cord 11. This ladder cord 11 has one end joined to the pulley 16,
The other end is joined to the bottom rail 12 and holds the slat 13 between both ends. Therefore, the rotational force transmitted from the driving-side rotating body 21 to the driven-side rotating body 22 is transmitted to the ladder code 11 through the rotating rod 15 and the pulley 16 to open and close the blind 3.

Here, the opening and closing operation of the blind 3 means that the angle between the bottom rail 12 and the slat 13 is changed without changing its position, and that the bottom rail 12 and the slat 13 Winding up by 16 has a meaning including both operations of a so-called elevating operation.

The main body 23 of each of the drive-side rotator 21 and the driven-side rotator 22 has a smooth cylindrical shape with no irregularities, and its outer peripheral surface is magnetized in a regular pattern. Things. Here, the cylindrical shape means not only a cylindrical shape in which the inside is filled, but also a cylindrical shape in which the inside is cylindrical, that is, a cylindrical shape.

The fact that the rotating body has a cylindrical shape without irregularities as described above greatly affects the power transmission from the driving-side rotating body 21 to the driven-side rotating body 22. This is because the influence of the magnets becomes weak in inverse proportion to the square of the distance between the magnets. Therefore, it is important to make the distance between the driving-side rotating body 21 and the driven-side rotating body 22 as small as possible for efficient power transmission.

By eliminating irregularities on the outer peripheral surfaces of the rotating members 21 and 22, the distance between the outer peripheral surface of the driving-side rotating member 21 and the outer peripheral surface of the driven-side rotating member 22 can be reduced. The influence between the magnets can be increased. Further, since these are cylindrical shapes without irregularities, the distance between these outer peripheral surfaces can be kept constant, so that the coupling force between the rotating bodies hardly changes. As a result, the transmission of power from the driving-side rotating body 21 to the driven-side rotating body 22 can be performed stably and efficiently.

The above-mentioned regular pattern is, specifically, a spiral pattern shown in FIG. 2, a pattern parallel to the axis shown in FIG. 5, that is, a stripe pattern, and a spiral shown in FIG. , That is, an inverted spiral pattern, and FIG.
A pattern in which different magnetic poles shown in (b) are present alternately in a lattice pattern, that is, a lattice pattern is exemplified. These patterns are preferable as magnetization patterns provided on the outer peripheral surface of the cylinder. However, the present invention is not limited to these patterns, and any pattern may be used as long as the torque can be transmitted from the driving-side rotating body 21 to the driven-side rotating body 22.

The size of the diameter of the driving side rotating body 21 and the driven side rotating body 22 is not particularly limited, but it is preferable that both are the same. This is because if the diameters of the cylinders are the same, the same rotating body can be used for the driving-side rotating body 21 and the driven-side rotating body 22, so that the number of product parts can be reduced.

However, by using the driving-side rotating body 21 and the driven-side rotating body 22 having different diameters,
Such a combination is also effective because a new function of amplifying or attenuating the rotational force transmitted from the driving-side rotating body 21 to the driven-side rotating body 22 is exhibited. Further, as the diameters and lengths of the rotating bodies 21 and 22 increase, the area affected by the magnetic force increases, and the coupling force between the rotating bodies increases, so that the transmitted rotating force is stabilized. Therefore, as long as the dimensions of the spacer 4 or the case 6 allow, it is preferable to use a spacer having a diameter as long as possible.

The spiral of the spiral pattern shown in FIG.
Although not particularly limited, it is preferable to have an angle of 30 to 60 degrees with respect to the axis of the rotating body,
More preferably, it has a 45 degree angle. This is because the driving-side rotating body 2
This is because the balance between the coupling force and the transmission of the rotational force between the first and the driven-side rotating bodies 22 is good.

Further, it is preferable that the number of magnetic poles of the helical pattern is in the range of 2 to 14, as viewed in the direction of the end face of the cylinder. However, the number of magnetic poles is not limited to this range. Here, the number of magnetic poles means the total number of poles when each of the N pole and the S pole is counted as one pole.
The number of magnetic poles exceeds 14 (that is, 16 or more)
In this case, since the width of the spiral of one pole is narrowed, the influence of the mutual magnetic cancellation by the counter electrodes present on both sides is increased. As a result, the driving side rotating body 21 and the driven side rotating body 2
2 becomes weaker.

The spiral directions of the spiral patterns of the driving-side rotating body 21 and the driven-side rotating body 22 must always be arranged in opposite directions. That is, as shown in FIG. 2, the spiral must be arranged so that the direction of the spiral is right-handed and left-handed, that is, a mirror image.

Further, when the rotating bodies 21 and 22 magnetized in the spiral pattern described above rotate, they generate a so-called thrust force in a direction parallel to the axis thereof. Therefore, when a rotating body having a spiral pattern is used, the bearing 14 of the rotating body should be one that can cope with the thrust force.

Although the stripe pattern shown in FIG. 5 is not particularly limited, it is preferable that the number of magnetic poles is in the range of 6 to 20 when viewed in the direction of the end face of the cylinder. When the number of magnetic poles is less than 6 (that is, the number of magnetic poles is 2 or 4), the number of magnetic poles is small, and thus, as in the above-described conventional power transmission device, the coupling force between the rotating bodies is increased by the rotation angle. Up and down greatly. On the other hand, if the number of magnetic poles exceeds 20, the width of one magnetic pole becomes narrow, so that the influence of the counter electrode on both sides becomes strong. In this case, the magnetic force acts between the counter electrodes on both sides to cancel each other, so that the coupling force between the driving side rotating body 21 and the driven side rotating body 22 is weakened. As a result, it becomes difficult to use it as a power transmission device.

The inverted spiral pattern shown in FIGS. 6A and 6B is not particularly limited, but the pattern has an angle of 30 to 60 degrees with respect to the axis of the cylinder, and It is preferable that the number of times of reversal of the helix is in the range of 1 to 10/5 cm. Here, the reversal of the helix means that when a right-handed spiral and a left-handed spiral having the same angle and the same width with respect to the axis exist on the outer peripheral surface of the rotating body, the two spirals intersect with each other. Means to be replaced at the point. Therefore, following any spiral on the outer peripheral surface of the rotating body, right-hand → left-hand → right-hand → left-hand →
‥‥‥.

When the spiral is reversed, the magnetic pole distribution on the outer peripheral surface of the cylinder becomes denser.
From 1, the rotation angle of the driven-side rotator 22 can be precisely controlled. However, if the number of inversions of the helix becomes too large, the effect of the adjacent counter electrodes canceling each other's magnetic force increases, so that the coupling force between the driving side rotating body 21 and the driven side rotating body 22 becomes weak. As a result, the function as the power transmission device cannot be performed.

It is preferable that the number of right-handed spirals and the number of left-handed spirals in the inverted spiral pattern are the same. This is because, in this case, the thrust force described in the spiral pattern does not occur.

Further, as shown in FIGS. 6A and 6B, the inverted helical pattern is preferably set in a mirror image relationship. This is because the coupling force between the rotating bodies is stabilized, and power transmission can be performed efficiently.

The lattice pattern shown in FIG. 7 is not particularly limited, but it is preferable that different magnetic poles are alternately provided with a square as one unit. This is because the magnetic pole distribution on the outer peripheral surface of the cylinder becomes uniform as a whole by making the minimum unit of the magnetic pole a square. As a result, the coupling force between the driving side rotating body 21 and the driven side rotating body 22 can be kept high, and the rotation angles of these rotating bodies can be precisely controlled.

Number of drive-side rotating bodies 21: driven-side rotating bodies 22
Need not be limited to 1: 1 and may be combined in some cases in a 1: 2, 2: 1 or other ratio. This is an effective means when a large coupling force is required between the rotating bodies or when operation from multiple directions is required. For example, as shown in FIG. 9, when the driving-side rotating body 21 is provided on both surfaces of the double-layer glass, the blind 3 can be opened and closed from any direction.

Next, in the double glazing constructed as described above, by pulling the operation cord 5 shown in FIG.
The magnetic field around it changes. In response to this change in magnetic field,
The driven-side rotator 22 rotates in a direction opposite to the drive-side rotator 21 so as to be retracted. This is shown in FIG.

By the rotation of the driven-side rotating body 22,
The rotating rod 15 joined to this and the pulley 16 joined to this rotating rod 15 rotate together. In addition, when the pulley 16 rotates, the bottom rail 12 and the slat 13 rotate or are wound up on the upper side of the double-glazed glass via the ladder cord 11 having one end joined thereto. As a result, the opening and closing operation of the blind 3 is performed.

[0050]

EXAMPLES Hereinafter, embodiments of the present invention will be described in more detail with reference to Examples and Comparative Examples. (Embodiment) FIGS. 1 to 4 show an embodiment according to the present invention. As shown in FIG.
And the driven-side rotator 22 both have a cylindrical main body 23.
Of the rotating body, the diameter and length of the rotating body, the pattern of magnetization, the strength of magnetic force, and the like are all the same. These rotating bodies 21 and 22
Is manufactured by Magna Corporation. In addition, as shown in FIG.
The spiral pattern has four magnetic poles when viewed in the direction of the end face. As shown in FIG.
2 has an angle of 45 degrees.

As shown in FIG. 1, the driving-side rotator 21 and the driven-side rotator 22 are accommodated in the case 6 and the spacer 4, respectively. It was set up to be.

The operation of the rotators 21 and 22 is such that the operation code 5 is pulled so that the driving rotator 21 rotates, and the driven rotator 22 is rotated in synchronization with the rotation. This is shown in FIG.

Since the spiral pattern changes continuously on the outer peripheral surfaces of the rotating bodies 21 and 22, the coupling force between the driving-side rotating body 21 and the driven-side rotating body 22 does not depend on the rotation angles of these rotating bodies. . This state is shown in FIG. Here, (a) in FIG. 3 (b) represents the total coupling force of the magnetic poles S, N, S ′ and N ′, and (b) is the magnetic poles S, N, S ′.
Or N ′.

When the blind 3 was opened and closed using a double glazing utilizing a power transmission device with magnets having the above configuration, the blind 3 continuously opened and closed very smoothly, and the stop position was determined. Could also be selected arbitrarily. Also, the noise generated when opening and closing the blinds was small.

Further, according to the above embodiment, the following effects are exhibited. (1) By using the driving side rotating body and the driven side rotating body having different diameters, the transmitted torque can be amplified or attenuated.

(2) By reducing the distance between the driving side rotating body and the driven side rotating body, the coupling force between these rotating bodies can be increased. (3) Since the spiral pattern has an angle of 30 to 60 degrees with respect to the axis of the rotating body, stable rotation force can be transmitted from the driving-side rotating body to the driven-side rotating body.

(4) The number of magnetic poles in the spiral pattern is 2-1.
By setting the rotation speed to 4, the rotational force can be stably transmitted from the driving-side rotating body to the driven-side rotating body, and these rotating bodies can be stopped at an arbitrary rotation angle.

(5) Since the number of magnetic poles of the stripe pattern is in the range of 6 to 20, stable transmission of rotational force from the driving-side rotating body to the driven-side rotating body is achieved, and these rotating bodies can be arbitrarily selected. Can be stopped at a rotation angle.

(6) Since the reversal spiral pattern has a reversal number in the range of 1 to 10/5 cm, stable transmission of rotational force from the driving-side rotating body to the driven-side rotating body is achieved.
These rotating bodies can be stopped at an arbitrary rotation angle.

(7) Since the number of spirals in the right-handed and left-handed spiral patterns is the same, generation of thrust force can be prevented. (8) The grid-like pattern is such that different magnetic poles are alternately magnetized using a square as one unit, so that a stable rotational force is transmitted from the driving-side rotating body to the driven-side rotating body, and these rotating bodies are arbitrarily rotated. You can stop at the corner.

(9) By setting the number of drive-side rotating bodies: the number of driven-side rotating bodies to 1: 2, 2: 1 or any other ratio, the transmitted torque can be amplified or attenuated. , And operation from multiple directions and transmission of rotational force in multiple directions are possible. (Comparative Example) FIGS. 11 to 13 show the configuration, operation and operation of a conventional power transmission device using magnets.
As shown in FIG. 13, the conventional power transmission device has a magnet 5
Since the coupling force depends on the rotation angle of 0,51, and the coupling force fluctuates in a cycle of 90 degrees, the rotation is not smooth and intermittent, and knocking occurs every time the rotation is performed. Due to this knocking, the double glazing in which the blind using the conventional power transmission device is built-in does not smoothly open and close the blind, and generates a loud noise every time the magnets 50 and 51 rotate. Further, the opening and closing operation of the blind cannot be stopped at an arbitrary position.

Here, (c), (d) and (e) in FIG. 13 are (c) ‥ the relationship between the rotation angle and the coupling force acting between the magnets 50 and 51, respectively. D) The relationship between the rotation angle acting between the magnet units 52 and 54 and the coupling force, and (e) the relationship between the rotation angle acting between the magnet units 53 and 55 and the coupling force.

The embodiment can be embodied with the following modifications. (A) As shown in FIG. 10 (b), the drive-side rotator or the driven-side rotator is constituted by a belt made of a rubber magnet or the like.

By forming at least one of the driving-side rotating body and the driven-side rotating body in a belt shape, the magnetic force of the other rotating body can be received in a wider range. As a result, a stronger coupling force between the rotating bodies can be obtained.

(B) As shown in FIGS. 10 (a) and 10 (b),
A substance 63 having high magnetic permeability exists between the driving-side rotator 21 and the driven-side rotator 22. The presence of the high-permeability material 63 such as an iron-nickel alloy between the rotating bodies increases the magnetic flux density between the rotating bodies, so that a stronger coupling force between the rotating bodies can be obtained.

(C) A motor is used instead of the operation code 5 shown in FIG. Opening and closing of the blind 3 and the like can be automatically performed by using a motor.

Further, the technical idea grasped from the above embodiment will be described below. (1) The power transmission device using magnets according to any one of claims 1 to 7, wherein at least one of the rotating bodies has a belt shape.

(2) The double-glazed glass according to claim 8, wherein at least one of the rotating bodies has a belt shape. With this configuration, the coupling force between the driving-side rotator and the driven-side rotator is increased, and more stable power transmission is possible.

(3) The power transmission device using magnets according to any one of claims 1 to 7, wherein a substance having high magnetic permeability exists between the plurality of rotating bodies arranged in parallel. (4) The double-glazed glass according to claim 8, wherein a substance having high magnetic permeability is present between the plurality of rotating bodies arranged in parallel.

With this configuration, the magnetic flux density between the driving-side rotator and the driven-side rotator increases, and more stable power transmission becomes possible. (5) The power transmission device using magnets according to any one of claims 1 to 7, wherein at least one of the plurality of rotating bodies is rotated by a motor.

(6) At least one of the plurality of rotating bodies
9. The double glazing according to claim 8, wherein the one is rotated by a motor.
With this configuration, the blind can be automatically opened and closed.

[0072]

The present invention is configured as described above, and has the following effects. According to the power transmission device using magnets of the first aspect of the present invention, the outer peripheral surface of the cylindrical rotating body having no irregularities is magnetized, and a plurality of the rotating bodies are arranged. The distance can be shortened.
Therefore, since the coupling force between these rotating bodies can be increased, stable power transmission can be achieved without contact. In addition, the rotating body can be stopped at an arbitrary rotation angle, and knocking of the rotating body can be prevented.

According to the power transmission device using magnets according to the second aspect of the present invention, in addition to the effect of the first aspect, since the magnet is helically magnetized, the power can be transmitted more smoothly. According to the power transmission device using a magnet according to the third aspect of the present invention, in addition to the effects of the first and second aspects, the magnetic pole distribution on the outer peripheral surface of the rotating body becomes dense, so that the rotation angle of the rotating body can be precisely controlled. Control.

According to the power transmission device using magnets of the invention described in claim 4, in addition to the effects described in claim 2 or 3, the number of magnetic poles in the end face direction of the rotating body is 2 to 14. In addition, stable power transmission between rotating bodies can be achieved.

According to the power transmission device using magnets of the fifth aspect of the present invention, in addition to the effect of the first aspect, since the magnetization pattern is parallel to the axis of the rotating bodies, the rotating bodies are connected to each other. The power can be further improved.

According to the power transmission device using magnets of the invention described in claim 6, in addition to the effect described in claim 5, the number of magnetic poles in the direction of the end face of the rotating body is 6 to 20, so that the rotating body has Stable power transmission is possible.

According to the power transmission device using magnets of the present invention, the magnetic pole distribution on the outer peripheral surface of the rotating body becomes entirely uniform in addition to the effects of the above-described first to sixth aspects. In addition, stable power transmission between the rotating bodies and precise control of the rotating angle of the rotating bodies can be performed.

According to the double-glazed glass of the present invention, since the power transmission device using magnets according to the first to seventh aspects is used, the opening and closing operation of the blind is stably and smoothly and quietly. It can be carried out. Moreover, the opening and closing operation of the blind can be stopped at an arbitrary position.

[Brief description of the drawings]

FIG. 1 is a perspective view of a main part of a double glazing having a power transmission device using magnets.

FIG. 2 is a plan view of a power transmission device in which a spiral pattern is magnetized.

FIGS. 3A and 3B are correlation diagrams of a rotation angle of a helical pattern rotating body and a binding force;

4 (a) to 4 (f) are action diagrams of a rotating body having a spiral pattern.

FIG. 5 is a plan view of a power transmission device in which a stripe pattern is magnetized.

FIGS. 6A and 6B are plan views of a power transmission device in which a reverse spiral pattern is magnetized.

FIGS. 7A and 7B are plan views of a power transmission device in which a lattice pattern is magnetized.

FIG. 8 is a cross-sectional view of a double-glazed glass having a built-in blind.

FIG. 9 is an explanatory view showing an example of a double-glazing unit having a plurality of driving-side rotating bodies.

FIGS. 10A and 10B are explanatory diagrams showing an embodiment of a non-contact power transmission device.

FIG. 11 is a perspective view of a main part of a conventional power transmission device using magnets.

12 (a) to (e) are action diagrams of a conventional power transmission device using magnets.

FIG. 13 is a correlation diagram between a rotation angle and a coupling force of a power transmission device using a conventional magnet.

[Explanation of symbols]

3 blind, 5 operation code, 8 sealant, 9 spacer outer peripheral surface, 11 ladder code, 12 bottom rail, 15 rotating rod, 16 pulley, 61 belt rotating body, 62 belt belt Rotation axis of rotating body, 63 ° high magnetic permeability material, X1 ‥ axis of driving side rotating body 21, X2 ‥ axis of driven side rotating body 22

Claims (8)

[Claims] 1. A plurality of cylindrical rotating bodies each having a smooth outer peripheral surface are arranged at intervals on a plurality of parallel axes so as to face each other on their outer peripheral surfaces. A power transmission device using magnets that is magnetized and configured to transmit power between rotating bodies in a pattern of the magnetization. 2. The power transmission device according to claim 1, wherein the magnetization pattern is helical with respect to the axis of the rotating body. 3. The power transmission device using magnets according to claim 2, wherein the spiral shape reverses its direction at least once on the outer peripheral surface of the rotating body. 4. The power transmission device according to claim 2, wherein the number of magnetic poles on the outer peripheral surface of the rotating body is 2 to 14 when viewed in the direction of the end face of the rotating body. 5. The power transmission device according to claim 1, wherein the magnetization pattern extends in parallel with an axial direction of the rotating body. 6. The power transmission device according to claim 5, wherein the number of magnetic poles on the outer peripheral surface of the rotating body is 6 to 20 when viewed in the direction of the end face of the rotating body. 7. The power transmission device according to claim 1, wherein the magnetic poles are arranged in a lattice pattern in the magnetization pattern. 8. A double glazing comprising the power transmission device using magnets according to any one of claims 1 to 7, wherein a rotating body on the driving side is provided outside and a rotating body on the driven side is provided inside. A double glazing in which an opening / closing body arranged in a space and opened / closed by rotation of a driven rotating body is provided in a space between the glasses.