JP2001098835A - Sliding door device for clean room or the like - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a sliding door device such as a clean room, etc., to/from which a linear motor and a guide rail can be easily attached/detached. SOLUTION: A door body 4 is hung from a guide rail 5 through a pulley 6. In a sliding door device such as a clean room constituted to carry the door body by a linear motor 7 that the upper part of the door body 4 is installed in a position higher than the guide rail 5, a fitting plate 12 integrally provided with a mounting part 13 of the guide rail rail 5 and the mounting part 13 of linear motor is removably fixed to the body 1 side of the clean room or the like.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a sliding door device for, for example, a clean room or a large assembled refrigerator (hereinafter referred to as a clean room), and more particularly, to a sliding door device driven by a linear motor. The present invention relates to a mounting structure of a linear motor and a guide rail in the door device of (1).

[0002]

2. Description of the Related Art Generally, a sliding door is widely used as a door opening / closing means for opening / closing an entrance opening of a clean room or the like. As a drive source for opening and closing the sliding door device, a rotary electric motor having a rotor in a stator is usually used. That is, the motor has a configuration in which the rotational force of the motor is attached to a pulley or a gear, and the movement is transmitted to the door by a V-belt or a chain. Further, since a deceleration / stop operation is performed by various limit switches and a safety device is attached, the mechanism becomes considerably complicated.

On the other hand, recently, attention has been paid to a structure in which a sliding door device is opened and closed using a linear motor. The advantage of using this linear motor is (i)
Since the linear motor performs linear motion, the motion can be transmitted as it is without converting it to the door. (Ii) The positioning and safety device can be made compact by the built-in microcomputer. (Iii) The failure rate can be opened and closed quietly. Is also small.

[0004]

However, a conventional sliding door device driven by a linear motor is shown in FIG.
As shown in FIG. 0, a guide rail b for driving the door, a linear motor c, and the like are individually mounted on the mounting board a by screws d and e. As shown in FIG. 11, both sides of the assembly f are attached to the main body side of a clean room or the like by brackets g.

[0005] For this reason, in the case of leveling work for determining the mounting height position of each mounting part, and in addition to the above, in the case of maintenance or inspection at the time of failure, etc. Other parts need to be attached or detached, which is very troublesome.

The present invention has been made in view of the above circumstances, and has as its object to provide a sliding door device for a clean room or the like having a structure in which a linear motor and a guide rail can be easily attached and detached. .

[0007]

In order to achieve the above object, a sliding door device for a clean room or the like according to the present invention is constructed as follows.

(1) According to the first aspect of the present invention, the door is suspended from the guide rail via a suspension wheel, and the upper portion of the door is driven by a linear motor provided above the guide rail. In a sliding door device such as a clean room, a mounting plate integrally including the guide rail and a linear motor mounting portion is detachably fixed to a storage body side such as the clean room.

According to this configuration, the mounting plate allows
Since the guide rail for the door travel and the linear motor mounting part are integrated, it is only necessary to perform the entire mounting, removal work and position adjustment using the mounting plate as a unit at the time of maintenance or inspection at the time of failure. Installation at the site,
Removal work and position adjustment can be performed very easily.

(2) According to a second aspect of the present invention, in the sliding door device for a clean room or the like according to the first aspect, a cover mounting portion is formed integrally with the mounting plate, and a linear mounting is formed on the cover mounting portion. A cover for covering the motor is detachably attached.

According to this configuration, the linear motor is normally covered with the cover, thereby protecting the linear motor and improving the appearance.

(3) The invention according to claim 3 is a sliding door device for a clean room or the like according to claim 1 or 2,
The mounting plate is provided with a hook portion for a hook member provided on the housing body side, and the mounting plate is detachably fixed to the housing body side by detachably engaging the hook portion with the hook member. I do.

According to the third aspect of the present invention, the mounting plate can be detachably fixed to the main body side of the clean room or the like simply by hooking the mounting plate on the hook member provided on the main body side of the clean room or the like. . Therefore, at the time of maintenance or inspection at the time of failure, it is possible to more easily perform on-site installation / removal work and position adjustment.

(4) According to a fourth aspect of the present invention, in the sliding door apparatus for a clean room or the like according to the third aspect, the hook member has the mounting plate engaged with the hook member by a latch portion. In this case, the guide rail for driving the door and the linear motor mounting portion are mounted at a predetermined position so as to be positioned at a predetermined height position.

With this configuration, once the mounting plate is leveled at a predetermined height, it is not necessary to level other components.

[0016]

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a perspective view of a sliding door apparatus for a clean room according to an embodiment of the present invention.

FIG. 8 exemplifies a clean room, in which an opening 3 for an entrance is provided in a wall panel 2 on a main body 1 (hereinafter referred to as a clean room main body 1) side of the clean room. The opening 3 for entrance is carried into and out of a room by a transporting machine such as a forklift, for example. Therefore, the lower part of the opening 3 for entrance and exit of the clean room has a flat shape flush with the floor surface F. Therefore, the door body 4 that opens and closes the entrance opening 3 is mounted on the guide rail 5 made of, for example, an extruded aluminum member horizontally disposed above the entrance opening 3 of the clean room main body 1. 6 (see FIG. 1 and FIG. 3), and moves laterally along the wall surface of the clean room main body 1 composed of the wall panel 2 to open and close the entrance opening 3. As a drive source for opening and closing the clean room main body 1, a linear motor 7 is disposed horizontally above the entrance opening 3 of the storage body. Reference numeral 4a denotes a handle provided on the door body 4.

FIG. 1 shows the structure of the above-mentioned door device of the clean room. FIG. 2 is a partially enlarged view of FIG. 1, FIG. 3 is a front view of FIG. 1, and FIG. 4 is an exploded perspective view showing a structure of a part where the door body is mounted on a guide rail and a part driven by a linear motor.

Specifically, as shown in FIG. 4, the suspension car 6 has an L-shaped support bracket 8 fixed to the top surface of the door body 4 with screws 8a, and the vertical wall of the L-shaped support bracket 8 is provided. Is rotatably supported on a shaft 9 fixed at a right angle to the shaft (see FIG. 2). Then, as shown in FIGS. 1 to 3, after the hanging wheel 6 is movably mounted on the guide rail 5, the diameter of the hanging wheel 6 is elastically changed from the opening 8 b provided on the base side of the support bracket 8. By inserting the retaining member 10 that can be removed and by positioning the tip of the retaining member 10 directly below the guide rail 5, the hanging wheel 6 is prevented from falling off the guide rail 5.

On the other hand, as shown in FIG. 4, the linear motor 7 comprises a linear motor body 7a and a mover 7b housed therein so as to be linearly slidable.
The motor body 7a is fixed to the wall panel 2 by screws 7c. A controller 71 for the linear motor 7 is similarly fixed to the wall panel 2 by screws 7d.

On the back surface of the support bracket 8, that is, on the surface on which the suspension vehicle 6 is not provided, the entrainment bracket 1 is provided.
1 is fixed at its base end with a screw 11a. A bifurcated engagement arm 11b extending toward the mover 7b side of the linear motor 7 is provided at a distal end portion of the entrainment bracket 11. The engagement arm 11b is provided with a linear motor 7b.
Engaging projection 7 formed so as to hang downward on movable element 7b
2 are engaged. Therefore, the door 4 is connected to the linear motor 7.
As a result, the mover 7b, its engagement protrusion 72, and the engagement arm 1
1b, driven via the support bracket 8 to open and close.

In order to facilitate the mounting of the linear motor 7 and the guide rail 5 on the wall panel 2 side, a common mounting plate 12 for mounting the linear motor 7 and mounting the guide rail 5 is made of, for example, an aluminum extrusion type. It is formed integrally with the material.

That is, in FIG.
2, a motor body 7a of the linear motor 7
A fitting groove 13 is formed as a linear motor mounting portion for partially fitting the rear surface of the door. Guide rail 5 is formed. On the back side of the mounting plate 12, a downward locking portion 14 is provided as an hanger rail engaging portion on the upper side, and a supporting leg portion 15 is provided so as to protrude from a lower portion and an intermediate portion of the back surface. . Fitting groove 1 as a linear motor mounting part
The linear motor 7 is integrally mounted on the mounting plate 12 by engaging a screw 7d which penetrates the motor body 7a with a boss 12c of the mounting plate 12. I have.

On the other hand, as shown in FIGS. 1 and 2, at a predetermined height of the wall panel 2, a hook member 16 having a crank-shaped cross section made of a hanger rail for suspending a motor drive unit is provided.
Are fixed by fixing screws 16a.

Then, as shown in FIGS. 1 and 2, the mounting plate 12 on which the guide rail 5 for door travel and the linear motor mounting portion 13 are integrally formed is mounted on the wall panel 2 as shown in FIGS.
The hooking portion 14 is hooked on the hook member 16, and the lower side of the mounting plate 12 is fixed to the wall panel 2 side with the fixing screw 17 as shown in FIG.
The upper side of 2 is fixed with a fixing screw 17a.

As a result, the height of the mounting plate 12 is correctly and easily regulated to a predetermined position by the hook member 16, and the support leg 15 is brought into contact with the wall panel 2, whereby the height of the wall panel 2 is increased. A predetermined degree of parallelism, that is, a degree of verticality with respect to is naturally obtained.

In the case of this embodiment, the mounting plate 12 is mounted on the mounting plate 12 from the latching portion 14 so as to facilitate the mounting of the cover 18 made of, for example, an extruded aluminum member covering the linear motor driving portion. Piece 12 that extends diagonally forward from the upper end of vertical piece 12a that extends
b is provided. A locking groove 20 is formed on the tip end of the inclined piece 12b.
While an engaging portion 18a formed of a projection formed on the upper end of the cover 18 covering the linear motor driving portion is detachably fitted,
The middle part of the inner surface of the cover 18 is attached to the support column 1
At 9, it is configured to be supported on the surface of the linear motor 7. By adopting such a configuration, the outer side of the linear motor 7 can be covered by the cover 18 in a normal state, so that the linear motor 7 can be protected and the appearance can be improved. Further, at the time of maintenance or the like, only the cover 18 can be easily removed from the cover attaching portion 20.

As shown in FIGS. 1 and 2, the door body 4 includes a pair of surface plates 22 made of, for example, aluminum, a heat insulating core material 23 made of, for example, urethane foam interposed between the surface plates 22, and It is composed of a hollow rectangular frame member 24 made of, for example, an extruded aluminum member mounted between the sides of the face plate 22. The wall panel 2 includes a pair of surface plates 25 made of, for example, aluminum, a heat insulating core material 26 made of, for example, urethane foam interposed between the surface plates 25, and an aluminum plate mounted between the sides of the both surface plates 25. A frame member 27 made of an extruded profile is formed of a frame material 27 having a substantially hat-shaped cross section, and a storage frame 28 made of an extruded aluminum profile is provided on the inner periphery of the entrance opening 3. Reference numeral 29 denotes a reinforcing plate made of, for example, steel, which is embedded in the wall panel 2 so that the fixing screw 17 can be tightened.

On the other hand, as shown in FIGS. 1 and 2, a door packing 30 is provided on the left, right and upper sides of the door body 4 on the indoor side.
Is installed. In the case of this embodiment, the door packing 3
Reference numeral 0 denotes a packing having a U-shaped cross-section in which two arms 32 extend substantially at right angles from both sides of the base 31, and the base 31 of the packing 30 is fixed to the frame member 24 of the door body 4 by a fixing screw 34. From the door 4 to the clean room 1
, And has a structure in which an extendable meandering part 33 is formed at least in the middle part in the extension direction of the extension part of each arm part 32 extending toward. The door packing 30 is formed of, for example, a material such as a synthetic rubber such as a thermoplastic elastomer. In this case, by forming the base portion 31 hard and forming the arm portion 32 and the meandering portion 33 softer than the base portion 31, the strength of the mounting portion (base portion 31) of the door packing 30 can be enhanced, and the arm portion The flexibility of the elastic deformation of the meandering portion 32 and the meandering portion 33 increases, and the airtightness can be further improved.

The door packing 30 configured as described above is
The door packing 30 mounted on the left and right sides and the upper side of the door body 4 and the door packing 30 mounted on the upper and lower sides is made of, for example, synthetic rubber such as a thermoplastic elastomer. Are connected via a corner packing (not shown) made of the above material. Therefore, the door packing 30
Are formed continuously on the left, right and upper three sides of the door body 4 on the indoor side, and when the door body 4 is closed, it is brought into close contact with the storage opening frame 28 of the entrance opening 3 of the clean room main body 1.

As described above, the meandering portion 3 is formed on the door packing 30.
When the linear motor 7 is energized so as to open the door body 4 by first forming the door 3, the door packing 30 first expands and a relative displacement occurs between the tip of the arm and the base 31. After the linear motor 7 is started with a light load and thereafter the linear motor 7 enters the high torque output region, a phenomenon occurs in which the tip of the door packing 30 is separated from the clean room main body 1 side. As a result, in the sliding door device driven by the linear motor 7, even if the airtight state by the door packing 30 is increased, the small opening torque of the linear motor can be compensated, and smooth opening and closing can be ensured. .

On the other hand, the lower end side of the door 4 is configured as follows. First, in order to facilitate opening and closing movement of the door body 4,
A movement guide means 35 (see FIG. 3) is provided between the lower end portion of the door body 4 and the door body 4. As shown in FIG. 6, the movement guide means 35 is provided on the lower end surface of the door body 4 along the longitudinal direction, and is fixed with screws 36b and has a substantially inverted U-shaped cross section. A guide roller 37 (see FIGS. 5 and 6) which is provided in the rear portion of the door, that is, at the rear portion in the opening and closing direction of the door body 4 (see FIG.
Reference).

Further, there is provided sealing pressing means 38 (see FIG. 3) which engages with each other when the door 4 is closed and presses the door 4 to the closed position of the clean room main body 1. As shown in FIG. 7, the sealing and pressing means 38 engages with the channel member 36 so as to engage with the outer surface of the channel member 36 when the door 4 is in the closed state. A guide roller 39 (see FIG. 5) is provided at the leading end (see FIG. 3) and is rotatable in a horizontal direction about a vertical shaft 39a.

Accordingly, the door 4 can be opened and closed linearly and smoothly along the guide groove 36a under the guidance of the guide rollers 37 of the moving guide means 35, and when the door 4 reaches the closed position. The door 4 enters between the guide roller 39 of the sealing pressing means 38 and the wall panel 2 of the clean room main body 1, and the inconvenience that the door of the door 4 is separated from the wall panel 2 is prevented by the guide roller 39. .

Further, a skirt packing 40 is provided at the lower end of the door body 4 as a second packing, thereby ensuring the airtightness and heat insulation of the gap between the door body 4 and the floor surface F.

As shown in FIG. 9, the skirt packing 40 is formed along a lower indoor side edge of the door body 4 and is made of a flexible band-shaped packing whose tip comes into contact with the floor surface F. Specifically, as can be seen from the cross-sectional shape shown in FIG. 1, a base 41 inserted into the lower end of the door body 4 and fixed with fixing screws 44, and bent from the base 41 in an inverted L-shape, It has a plate-like arm portion 42 extending from the door body 4 toward the floor surface F, and a stretchable meandering portion 43 is formed at least at an intermediate portion in the extension direction of the extension portion. Have been. In this case, the skirt packing 40 is
For example, it is formed of a flexible material made of synthetic rubber such as a thermoplastic elastomer. In this case, as in the case of the door packing 30, it is preferable that the base 41 be formed hard and the arm 42 and the meandering portion 43 be formed softer than the base 41.

When the meandering portion 43 is formed on the skirt packing 40 as described above, when the linear motor 7 is energized to open the door body 4 similarly to the case of the door packing 30,
First, the skirt packing 40 expands and a relative displacement occurs between the tip and the base of the arm.
Start up with a light load, and thereafter, after the linear motor 7 enters the high torque output region, a phenomenon occurs in which the tip of the skirt packing 40 is separated from the clean room main body 1 side. As a result, in the sliding door device driven by the linear motor 7, the skirt packing 40 together with the door packing 30 are provided.
Therefore, even if the airtight state is increased, the small opening torque of the linear motor can be compensated for, and smooth opening and closing can be ensured.

[0038]

As described above, the sliding door device for a clean room or the like according to the present invention is constructed as described above, so that the following effects can be obtained.

(1) According to the first aspect of the present invention, the mounting plate integrally provided with the guide rail and the linear motor mounting portion is detachably fixed to the main body side of a clean room or the like, so that it can be used for maintenance or failure. When checking at the time,
It is only necessary to perform the whole installation, removal work and position adjustment with the mounting plate as one unit, and it is very easy to install, remove and position adjustment on site compared to the case where mounting was done for each conventional component Can be done.

(2) According to the second aspect of the present invention, the cover mounting portion is formed integrally with the mounting plate, and the cover for covering the linear motor is removably mounted on the cover mounting portion. In addition to 1), protection of the linear motor can be achieved, and the appearance can be improved.

(3) According to the third aspect of the present invention, the mounting plate is provided with a hook for the hook member provided on the main body side of the clean room or the like, and the hook is detachably attached to the hook member. The mounting plate is detachably fixed to the main body such as a clean room, etc., so that the mounting plate is simply hooked to the hook member provided on the main body side of the clean room, etc. It can be detachably secured to the side. Therefore, at the time of maintenance or inspection at the time of failure, it is possible to more easily perform on-site installation / removal work and position adjustment.

(4) According to the fourth aspect of the present invention, when the hook plate is engaged with the hook member at the hook portion, the guide rail for driving the door and the linear motor are mounted. Since the part is leveled at a predetermined position so that the part is positioned at a predetermined height position, once the mounting plate is leveled at a predetermined height position, leveling of other parts is unnecessary. Become.

[Brief description of the drawings]

FIG. 1 is a longitudinal sectional view showing a sliding door device such as a clean room in the present invention.

FIG. 2 is a partially enlarged sectional view of FIG. 1 showing a configuration of a sliding door device such as a clean room in the present invention.

FIG. 3 is a schematic front view showing a sliding door device such as a clean room in the present invention.

FIG. 4 is an exploded perspective view showing a structure of a portion for supporting a door body on a guide rail and a portion driven by a linear motor in a sliding door device such as a clean room of the present invention.

FIG. 5 is a cross-sectional view of a door part in a sliding door device such as a clean room of the present invention.

FIG. 6 is a longitudinal sectional view showing a configuration of a rear portion of a lower end of a door body in a sliding door device such as a clean room of the present invention.

FIG. 7 is a longitudinal sectional view showing a configuration of a door tip at a lower end of a door body in a sliding door device such as a clean room of the present invention.

FIG. 8 is a schematic front view of a clean room having the sliding door device of the present invention.

FIG. 9 is an enlarged vertical sectional view of a skirt packing portion at a lower end of a door body in a sliding door device such as a clean room of the present invention.

FIG. 10 is a perspective view showing a mounting state of a guide rail and a linear motor in a conventional sliding door device.

FIG. 11 is a schematic front view showing a mounting state of a guide rail and a linear motor in a conventional sliding door device.

[Description of Signs] 1 Clean room main body 2 Wall panel 3 Door opening 4 Door body 5 Guide rail (guide rail for door traveling) 6 Hanger 7 Linear motor 12 Mounting plate 13 Fitting groove (linear motor mounting part) 14 hook Stopping part (hanger rail engaging part) 15 Support leg part 16 Hook member (hanger rail) 17 Fixing screw 17a Fixing screw 18 Cover

Claims (4)

[Claims] 1. A sliding door device such as a clean room in which a door body is suspended from a guide rail via a suspension car and an upper portion of the door body is driven by a linear motor provided above the guide rail. A sliding door device for a clean room or the like, wherein a mounting plate integrally provided with the guide rail and the linear motor mounting portion is detachably fixed to a storage body side of the clean room or the like. 2. The sliding door device for a clean room or the like according to claim 1, wherein a cover mounting portion is formed integrally with the mounting plate, and a cover that covers a linear motor is detachably mounted on the cover mounting portion. A sliding door device for a clean room or the like characterized by being attached. 3. The sliding door device for a clean room or the like according to claim 1, wherein the mounting plate is provided with a hook for a hook member provided on the storage body side, and the hook is attached to and detached from the hook member. A sliding door device for a clean room or the like, wherein the mounting plate is detachably fixed to the storage body side by being engaged as much as possible. 4. The guide rail for running the door when the hook member is engaged with the hook member by a latching portion of the sliding door device for a clean room or the like according to claim 3. A sliding door device for a clean room or the like, wherein the sliding door device is mounted at a predetermined position such that the linear motor mounting portion is positioned at a predetermined height position.