JP2000054727A - Automatic open-close device for fitting - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an automatic open-close device for fittings being easily applied to a 'fusuma', a sliding door, etc., at a low cost. SOLUTION: When fittings 11 are fitted into the groove 2 of a head jamb 1, a moving-piece unit 3 is placed between permanent magnets 14, 14 oppositely faced in a stator case 12 disposed at the upper end of the fittings 11. The direction of electric conduction through each coil 4 of the moving-piece unit 3 is changed over timely on the basis of the relative places of the coils 4 and the permanent magnets 14 detected by magnetic sensors 5 by a controller 6, and force in the fixed direction is worked between the moving-piece unit 3 and a stator 15 by giving the iron cores of each coil 4 the polarity of attraction and repulsion to the polarity of the permanent magnets 14. Since the moving- piece unit 3 is fastened into the groove 2 of the head jamb 1 and the stator 15 is disposed onto the upper end face of the fittings 11, the fittings 11 are opened and closed. The stator 15 and the fittings 11 are contacted and separated freely, and the fittings 11 can be removed and fitted easily. Shapes in the plan views of the head jamb 1 and the fittings 11 can also be formed in an arcuate form.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an automatic opening / closing apparatus for fittings which can be opened and closed by a linear DC motor on a fitting slidable along a groove of a gate.

[0002]

2. Description of the Related Art Linear DC motors for automatic doors include a coil movable type (see Japanese Utility Model Registration No. 255730) and a magnet movable type (see Japanese Utility Model Publication No. 7-45745). In all of the conventional automatic doors using these linear DC motors, the stator of the linear motor is fixed above the entrance and the mover is connected to the door.

[0003]

However, the conventional automatic door using a linear DC motor has the following problems. That is, in the case of an automatic door using a coil movable linear motor, the coil movable linear motor includes:
There are a brush power supply method and a wire power supply method according to the power supply method to the mover. In the brush power supply method, the product life is short due to wear of the brush, and electrical noise due to spark between the brush and the current collector is easily generated. Although the product life of the wired power supply type is longer than that of the brush power supply type, it is troublesome to arrange the power supply line. On the other hand, in the case of an automatic door using a movable magnet linear motor, power is supplied to the stator side of the linear motor. The use of many expensive coils for the stator of the motor increases the cost. The present invention has been made in view of the above problems, and provides an inexpensive automatic opening / closing device for a fitting that is compact in configuration, has no problem in supplying power to a linear motor, and is easily applicable to sliding doors, sliding doors, and the like. It is intended for.

[0004]

According to a first aspect of the present invention, there is provided an automatic opening and closing apparatus for a fitting according to the present invention.
In addition to disposing the stator of the coil movable linear motor on the upper edge of the fitting slidable along the groove of the Kamoi, the movable member relatively movable with respect to the stator is fixed to the groove of the Kamoi. Features.

According to a second aspect of the present invention, there is provided an automatic opening and closing apparatus for fittings according to the first aspect, wherein the stator and the mover are vertically opposed to each other, and the mover is fixed at a fixed position. It can be moved up and down between a position substantially flush with the groove bottom of the Kamoi and a position protruding from the groove bottom, and is urged by a spring in a direction always protruding from the groove bottom to be fixed via rollers provided on the mover. The gap between the armature and the mover is kept constant.

According to a third aspect of the present invention, there is provided an automatic opening / closing apparatus for fittings according to the first aspect, wherein the stator is separated from the fittings so as to be movable on a guide rail fixed to a groove portion of the gate. It is characterized in that it is supported, and the stator and the fitting are configured to be able to freely contact and separate by an engaging member.

According to a fourth aspect of the present invention, there is provided an automatic opening / closing apparatus for fittings according to the third aspect, wherein the guide rail and the mover are integrated.

According to a fifth aspect of the present invention, there is provided an automatic opening and closing apparatus for fittings according to the fourth aspect, wherein the guide rail, the movable element, and the stator supported by the guide rail are disposed outside the groove of the gate. It is characterized by being arranged.

According to a sixth aspect of the present invention, there is provided an automatic opening and closing device for a fitting according to the first aspect, wherein the dolly and the fitting are formed in an arc shape in plan view.

[0010]

According to the apparatus for automatically opening and closing a fitting according to the first aspect of the present invention, when the stator and the mover of the linear motor are relatively moved, the fitting is automatically opened and closed. Since the mover relatively movable with respect to the stator is fixed to the groove of the Kamoi, the structure for supplying power to the mover is simplified, the configuration is compact, and the movable can be easily incorporated into the Kamoi. Further, since there is no portion where mechanical wear occurs, maintenance-free operation can be achieved. Furthermore, since it is not necessary to use many expensive coils and the workability is excellent, the total cost can be reduced.

According to the apparatus for automatically opening and closing a fitting according to the second aspect of the present invention, the fitting can be easily attached and detached similarly to a normal fitting having no automatic opening and closing apparatus. Further, since the gap between the stator and the mover of the linear motor is always kept constant, the fitting can be opened and closed stably with a constant thrust.

According to the apparatus for automatically opening and closing a fitting according to the third aspect of the present invention, since the fitting can be removed while the stator of the linear motor is left in the groove of the gate, interference between the stator and other articles can be achieved. Can be avoided.

According to the apparatus for automatically opening and closing a fitting according to the fourth aspect of the present invention, the stator and the mover of the linear motor can be made into one assembly, so that the assembling accuracy is improved and the workability is further improved. I do.

According to the apparatus for automatically opening and closing a fitting according to the fifth aspect of the present invention, the fitting can be attached to an existing fitting.
Existing fittings can be easily automated.

According to the apparatus for automatically opening and closing a fitting according to the sixth aspect of the present invention, a door pocket is not required, and when the present invention is applied to a toilet, particularly a door of a toilet for a wheelchair user, it can be used with a wide opening size. The performance is improved.

[0016]

DESCRIPTION OF THE PREFERRED EMBODIMENTS (First Embodiment) A first embodiment of the present invention will be described with reference to the drawings. 1 is a schematic perspective view of a main part, and FIG. 2 is an enlarged sectional view of the main part. A stator case 12 having an open upper surface is disposed over substantially the entire length of the fitting 11 that fits into the groove 2 of the Kamoi 1. The stator case 12 is a non-magnetic extruded product such as aluminum. A plurality of permanent magnets 14 magnetized in the thickness direction are arranged along the opposing walls 13 on both sides over the entire length of the stator case 12. Have been. The permanent magnets 14 are arranged so that their polarities are different from each other between adjacent magnets and opposite magnets, and constitute a stator 15 of the coil movable linear motor L. A mover unit 3 of the coil movable linear motor L is fixed substantially at the center of the groove 2 of the Kamoi 1 in the longitudinal direction. The mover unit 3 is formed by arranging a plurality of coils 4 each containing an iron core in the longitudinal direction. Each coil 4 is controlled by the controller 6 based on a relative position with respect to the permanent magnet 14 detected by the magnetic sensor 5. The energization direction is switched so that thrust is generated in the same direction.

When the fitting 11 is fitted into the groove 2 of the gate 1, the space between the opposed permanent magnets 14 in the stator case 12 is
The mover unit 3 is located. When an open / close switch (not shown) is operated, the controller 6 switches the energizing direction to each coil 4 of the mover unit 3 with good timing based on the relative position between the coil 4 and the permanent magnet 14 detected by the magnetic sensor 5. The iron core has a polarity of attraction / repulsion with respect to the polarity of the permanent magnet 14, so that a force in a predetermined direction acts between the mover unit 3 and the stator 15. The mover unit 3 is fixed to the groove 2 of the Kamoi 1 and the stator 15
Is arranged on the upper end surface of the fitting 11, so that the fitting 11 is opened and closed.

The above-described first embodiment of the present invention relates to a Kamoi 1
In this embodiment, a movable coil unit linear motor is incorporated into the groove 2 to form a door engine, and the movable unit 3 movable relative to the stator 15 is fixed in the groove 2 of the Kamoi 1. The power supply structure to the power supply is simplified, the configuration is compact, and the power supply can be easily incorporated in the Kamoi.
Further, since there is no portion where mechanical wear occurs, maintenance-free operation can be achieved. Furthermore, since it is not necessary to use many expensive coils and the workability is excellent, the total cost can be reduced.

(Second Embodiment) A second embodiment of the present invention will be described with reference to the drawings. 3 is a cross-sectional view of a main part, and FIG. 4 is an enlarged cross-sectional view taken along line AA in FIG. An iron yoke 32 is fixed to the upper end surface of the fitting 31 that fits into the groove 22 of the Kamoi 21 over substantially the entire length. A plurality of permanent magnets 33 magnetized in the thickness direction along the yoke 32 are fixed over the entire length of the upper end surface of the fitting 31. Each permanent magnet 33
Are arranged with different polarities next to each other,
The stator 34 of the coil movable linear motor L is configured.

A mover unit 23 of the coil movable linear motor L is disposed in a concave portion 22a formed substantially at the center of the groove 22 of the gate 21 in the longitudinal direction. Mover unit 23
Are located in the mounting case 24 fixed in the recess 22a, at a position substantially flush with the bottom surface 22b of the groove 22 of the Kamoi 21 and the groove 2
2 is mounted to be vertically movable between positions protruding from the bottom surface 22b. And, it is urged by a spring 25 in a direction always protruding from the bottom surface 22 b of the groove 22. The degree of protrusion is regulated by the engagement of the step 23a of the mover unit 23 with the stopper 24a provided on the mounting case 24. The mover unit 23 is provided with rollers 26 on both front and rear sides that contact a permanent magnet 33, which will be described later, so that the gap between the mover unit 23 and the permanent magnet 33 is kept constant, and an iron core is contained inside. Coil 2
7 are cascaded in the longitudinal direction, and the energizing direction of each coil 27 is switched by the controller 29 based on the relative position with respect to the permanent magnet 33 detected by the magnetic sensor 28 so that thrust is generated in the same direction. .

The fitting 31 has an upper end formed in the groove 22 of the Kamoi 21.
The lower end is fitted to a sill (not shown) by being fitted inside and being pushed up. At this time, the rollers 26 of the mover unit 23 come into contact with the permanent magnet 33 fixed to the upper end surface of the fitting 31 and are pushed up.
The groove 22 is retracted to a position substantially flush with the bottom surface 22b of the groove 22. The mover unit 23, which is urged by the spring 25 and protrudes into the groove 22 of the gate 21, has its roller 26 abutting against the permanent magnet 33, and
And the gap between the stator 34 is kept constant.

By operating an open / close switch (not shown), the controller 29 determines the direction of energization to each coil 27 of the mover unit 23 based on the relative position between the coil 27 and the permanent magnet 33 detected by the magnetic sensor 28. By switching well and giving the iron core of each coil 27 a polarity of attraction / repulsion with respect to the polarity of the permanent magnet 33, a force in a predetermined direction is applied between the mover unit 23 and the stator 34. Since the mover unit 23 is fixed to the groove 2 of the gate 1 and the stator 34 is disposed on the upper end surface of the fitting 31, the fitting 31 is opened and closed. At this time, the roller 26 is
Roll over 3

As described above, the second embodiment uses the Kamoi 21
By lifting the fitting 31 in the groove 22, the movable element unit 23 can be retracted to a position substantially flush with the bottom surface 22b of the groove 22 of the Kamoi 21 and is similar to a normal fitting without an automatic opening / closing device. The fitting 31 can be easily attached and detached. Since the gap between the stator 34 and the mover unit 23 is always kept constant, the fitting 31 can be stably opened and closed with a constant thrust.

(Third Embodiment) A third embodiment of the present invention will be described with reference to the drawings. FIG. 5 is a schematic perspective view of a main part, and FIG. 6 is an enlarged sectional view of the main part. At the center in the width direction of the groove 42 of the Kamoi 41, a long guide rail 43 extending over the entire length of the Kamoi 41 is fixed. The guide rail 43 is formed with a running rail portion 45 in which the lower ends of the opposing walls 44 on both sides are bent outward at right angles. A stator case 52 having a U-shaped cross section which substantially matches the length of the fitting 51 is movably supported by running rails 45 of the guide rail 43 via running wheels 56 provided on the front and rear. The stator case 52 also serves as a yoke, and a plurality of permanent magnets 54 magnetized in the thickness direction are disposed on the case side wall 53 corresponding to the opposing walls 44 on both sides of the guide rail 43 over the entire length. Have been. The permanent magnets 54 are arranged with different polarities between adjacent magnets and opposite magnets, and constitute a stator 55 of the coil movable linear motor L. A fitting projection 57 is fixed to the lower surface of the stator case 52 at the center in the longitudinal direction.

A mover unit 46 of the coil movable linear motor L is fixed substantially at the center of the guide rail 43 in the longitudinal direction. The mover unit 46 is formed by arranging a plurality of coils 47 each containing an iron core between the opposing walls 44 in the longitudinal direction. Each coil 47 is a magnetic sensor (not shown).
The energizing direction is switched by the controller 48 based on the relative position with respect to the permanent magnet 54 detected by the controller 48 so that a thrust is generated in the same direction.

A horizontal roller 62 that rolls in the groove 42 to prevent the fitting 51 from swaying is fixed before and after the upper end surface of the fitting 51 that fits into the groove 42 of the gate 41. A fitting bracket 63 that fits into the fitting protrusion 57 in a male-female relationship is fixed substantially at the center of the upper end surface of the fitting 51, and the stator case 52 and the fitting 51 are configured to be able to freely move away from each other.

When the fitting 51 is fitted into the groove 42 of the gate 41, a fitting projection 57 projecting from the lower surface of the stator case 52 is fitted to a fitting bracket 63, and the fitting 51 is fitted.
And the stator case 52 are connected. By operating an open / close switch (not shown), the controller 48 switches the energizing direction to each coil 47 of the mover unit 46 with good timing based on the relative position between the coil 47 and the permanent magnet 54 detected by the magnetic sensor. By making the iron core of the coil 47 have a polarity of attraction / repulsion with respect to the polarity of the permanent magnet 54, a force in a predetermined direction acts between the mover unit 46 and the stator 55. The mover unit 46 is fixed to a guide rail 43 provided in the groove 42 of the gate 41, and the stator 55 and the fitting 51 movably supported by the guide rail 43 are provided with a fitting projection 57 and a fitting bracket 63. The fittings 51 are opened and closed because they are connected by fitting.

As described above, in the third embodiment, the stator 55 and the fitting 51 can be freely separated from each other by the fitting bracket 63 fitted in a male and female relationship with the fitting projection 57 fixed to the stator case 52. By removing the fitting bracket 63 from the fitting projection 57 or fitting the fitting bracket 63, the fitting 55 is left in the groove 42 of the Kamoi 41.
Can be removed, so that damage due to interference between the stator 55 and other articles can be avoided.

(Fourth Embodiment) A fourth embodiment of the present invention will be described with reference to the drawings. FIG. 7 is an enlarged sectional view of a main part. At the center in the width direction of the groove 72 of the Kamoi 71, a long guide rail 73 extending over the entire length of the Kamoi 71 is fixed. The guide rail 73 is formed with a running rail portion 75 which is bent inward at right angles below the opposing walls 74 on both sides.
A fitting 82 is provided on the traveling rail 75 of the guide rail 73.
The stator case 83 having a U-shaped cross section substantially matching the length of
It is movably supported via running wheels 86 provided at the front and rear. A plurality of permanent magnets 84 magnetized in the thickness direction are arranged on the horizontal shelf 83a of the stator case 83 over the entire length. The permanent magnets 84 are arranged so that adjacent magnets have different polarities, and constitute a stator 85 of the coil movable linear motor L. A fitting projection 87 is fixed to the lower surface of the stator case 83 at the center in the longitudinal direction. On the other hand, a fitting bracket 8 fitted to the fitting projection 87 in a male / female relationship substantially at the center of the upper end surface of the fitting 82.
8 is fixed, and the stator case 83 and the fitting 82 are configured to be able to freely contact and separate.

A mover unit 76 of the coil movable linear motor L is fixed substantially at the center of the guide rail 73 in the longitudinal direction. The mover unit 76 includes a ceiling part 73 integrally formed between opposing walls 74 of the guide rail 73.
A plurality of coils 77 are fixed in a row in the longitudinal direction on the lower surface of the coil a. 81 are fixed.

In the fourth embodiment having the above structure, the mover unit 76 is provided with the guide rail 73 provided in the groove 72 of the gate 71.
And the fixture 82, which is fixed to the guide rail 73 and is movably supported by the guide rail 73, is connected by fitting the fitting projection 87 to the fitting bracket 88. The direction of energization to the coils 77 is switched with good timing, and the iron core of each coil 77 is given a polarity of attraction / repulsion with respect to the polarity of the permanent magnet 84 so that a force in a predetermined direction is applied to the mover unit 76 and the stator 85. The fitting 82 is opened and closed by acting between them. Mover unit 76 and stator 85
Is assembled into the guide rail 73 to form a single assembly, so that the assembly accuracy is improved and the workability is further improved.

(Fifth Embodiment) A fifth embodiment of the present invention will be described with reference to the drawings. FIG. 8 is an enlarged sectional view of a main part. In the fifth embodiment, the guide rail 73 and the mover unit 76 described in the fourth embodiment, and the stator 85 that is supported by the guide rail 73 so as to run freely are attached along the outer surface of the gate 91. is there. Groove 92 of Kamoi 91
The fitting 93 is fixed to the stator case 83 and connected to the stator 85 via a connecting pin 96 which is fixed to the fitting 93 and which can be freely attached to and detached from the connecting bracket 94. . That is, the connection bracket 94
An engaging groove 95 is provided at the tip of the connecting member 96, and a connecting pin 96 provided on the fitting 93 is engaged with the engaging groove 95. The connection bracket 94 is covered with a cover 97 made of synthetic resin so as not to impair the appearance. In this way, it is possible to attach to an existing fitting, and the existing fitting can be easily automated.

(Sixth Embodiment) A sixth embodiment of the present invention will be described with reference to the drawings. FIG. 9 is a schematic plan view. In the sixth embodiment of the present invention, the shape of the Kamoi 101 and the fitting 102 in a plan view is formed in an arc shape, and the mover unit 103 and the stator 104 of the coil movable linear motor L are formed.
Is formed in a shape along the arc shape of the gate 101 and the fitting 102. As a specific configuration, the configuration of the first embodiment is applied.

The sixth embodiment eliminates the need for a door pocket,
When the present invention is applied to a toilet, particularly a door of a toilet for a wheelchair user, the opening size can be widened to improve the usability, and the door can be manually opened and closed even when power is not supplied. Note that a door roller is provided on the lower surface of each fitting described in each of the above embodiments.

[Brief description of the drawings]

FIG. 1 is a schematic perspective view of a main part showing a first embodiment.

FIG. 2 is an enlarged sectional view of a main part.

FIG. 3 is a sectional view of a main part showing a second embodiment.

FIG. 4 is an enlarged sectional view taken along the line AA in FIG. 3;

FIG. 5 is a schematic perspective view of a main part showing a third embodiment.

FIG. 6 is an enlarged sectional view of a main part.

FIG. 7 is a schematic sectional view of a main part showing a fourth embodiment.

FIG. 8 is a schematic sectional view of a main part showing a fifth embodiment.

FIG. 9 is a schematic plan view showing a sixth embodiment.

[Explanation of symbols]

 1, 21, 41, 71, 91, 101 ... Kamoi 3, 23, 46, 76, 103 ... Movable unit 11, 31, 51, 82, 93, 102 ... Fittings 14, 33, 54 84, permanent magnets 15, 34, 55, 85 ... stator 25 ... springs 43, 73 ... guide rails 57, 87 ... fitting projections 63, 88 ... fitting Bracket L ... Coil movable linear motor

 ────────────────────────────────────────────────── ─── Continuing on the front page (72) Inventor Shinji Ogura 100 Kanayama, Ichiriyama-cho, Kariya-shi, Aichi Prefecture TOYOTA Auto Body Co., Ltd. F-term (reference) 2E052 AA01 BA02 CA07 DA02 DB02 EA15 EB01 EC01 KA06 KA14 KA15 KA16

Claims (6)

[Claims] 1. A coil movable linear motor stator is disposed on an upper edge of a fitting slidable along a groove of a Kamoi, and a movable element relatively movable with respect to the stator is provided in a groove of the Kamoi. An automatic opening / closing device for fittings, which is fixed to a door. The movable member is vertically movable between a position where the movable member is substantially flush with a bottom surface of the groove at the fixed position and a position protruding from the bottom surface of the groove. 2. The device according to claim 1, wherein the gap between the stator and the mover is kept constant via a roller provided on the mover by constantly biasing the mover in a direction protruding from the bottom of the groove. An automatic opening / closing device for the fitting as described. 3. The stator is separated from the fitting and movably supported by a guide rail fixed to the groove of the duck, and the stator and the fitting are configured to be able to freely contact and separate by an engaging member. The automatic opening / closing device for a fitting according to claim 1. 4. The apparatus according to claim 3, wherein the guide rail and the mover are integrated. 5. The apparatus according to claim 4, wherein the guide rail, the mover, and the stator supported by the guide rail are arranged outside the ditch of the gate. 6. The automatic opening / closing device for a fitting according to claim 1, wherein the dolly and the fitting are formed in an arc shape in plan view.