JP5020787B2 - Automatic door device - Google Patents

Description

  The present invention includes a sealed first private chamber and a case having a second private chamber surrounding the first private chamber and having an opening formed therein. The second private chamber is sealed to enter the case from the opening. The present invention relates to an automatic door device that suppresses entry of foreign matter.

Conventionally, a case having a first private chamber and a second private chamber surrounding the first private chamber and having an opening formed therein, a motor main body provided inside the first private chamber, and the motor main body are provided. A motor having an output shaft protruding outside the first private chamber, and provided between the first private chamber and the second private chamber, covers the opening and rotates by rotation of the output shaft. A belt that is fixed to the belt and has a tip portion protruding from the opening to the outside of the case, one end portion fixed to the case, and the other end contacting the belt and the second portion There is known a dust-proof device of a direct acting mechanism that includes a sealed chamber that seals a private chamber and prevents foreign matter from entering the case through the opening (for example, see Patent Document 1).
In the dust-proof device of this linear motion mechanism, a door panel is connected to the movable part from the outside of the case, and the automatic door can be opened and closed by moving the door panel by driving the motor.

JP-A-4-294997

  However, in this case, since the seal portion continuously contacts the belt along the side wall of the opening in order to close the opening, the contact area between the seal portion and the belt is large. There is a problem that a frictional force generated in the meantime becomes large, and a motor having a large rotational force is required to move the door panel.

  An object of the present invention is to provide an automatic door device capable of moving a door panel even with a motor having a small rotational force. It is.

  An automatic door device according to the present invention is provided in a sealed first private room, a case having a second private room surrounding the first private room and having an opening formed therein, and inside the first private room. A motor body and an output shaft provided in the motor body and projecting to the outside of the first private chamber; a controller provided inside the first private chamber and controlling the driving of the motor; A rotating body that is provided in the second private chamber and rotates by rotation of the output shaft, a rotational force transmitting means that is provided in the second private chamber and transmits the rotational force of the rotating body, and one end portion of the rotating body A connection body connected to the force transmission means, the other end projecting to the outside of the second private chamber through the opening, and the rotational force is transmitted by the rotational force transmission means; and provided on the outside of the case And a door connected to the other end of the coupling body And the other end portion covers the opening and contacts the connecting body to seal the second private chamber, and the foreign matter enters the case from the opening. And a first seal portion that suppresses intrusion.

  According to the automatic door device according to the present invention, since the first seal portion is in contact with the coupling body, the contact area between the first seal portion and the coupling body is small, and the first seal portion and the coupling body are The door panel can be moved even with a motor having a small rotational force by reducing the frictional force generated between the two.

Hereinafter, embodiments of the present invention will be described with reference to the drawings. In the drawings, the same or corresponding members and parts will be described with the same reference numerals.
Embodiment 1 FIG.
FIG. 1 is a side view showing a state where an automatic door device 1 according to this embodiment is attached to a machine tool device 2, and FIG. 2A is a plan view of the automatic door device 1 and the machine tool device 2 of FIG. 2B is a front view of the automatic door device 1 and the machine tool device 2 shown in FIG. 2A, FIG. 3A is a plan view of the automatic door device 1 shown in FIG. 1, and FIG. It is a front view of the automatic door apparatus 1 of (a).
The automatic door device 1 according to this embodiment is attached to a machine tool device 2, and the machine tool device 2 can be opened and closed by moving the door panel 3.
The automatic door device 1 also includes an aluminum case 6 having a sealed first private chamber 4 and a second private chamber 5 that surrounds the first private chamber 4 and has an opening 5a formed therein. A motor main body 7 provided inside the private chamber 4 and a motor 9 provided in the motor main body 7 and having an output shaft 8 projecting outside the first private chamber 4, and provided inside the first private chamber 4, And a control unit 10 that controls driving of the motor 9.
Between the first private chamber 4 and the second private chamber 5, there is a pulley 11 that is a rotating body that rotates by the rotation of the output shaft 8, and a driven pulley 12 that has an axis parallel to the axis of the pulley 11. It is attached.
Between the pulley 11 and the driven pulley 12, a timing belt 13, which is a rotational force transmitting means for transmitting rotational force due to rotation of the pulley 11, is wound.
One end portion of a coupling body 14 is connected to the timing belt 13, and the other end portion of the coupling body 14 protrudes outside the second private chamber 5 through the opening 5 a.
A door panel 3 provided outside the case 6 is connected to the other end of the coupling body 14.

4 is a cross-sectional view taken along the line IV-IV in FIG. 3B, and FIG. 5 is an explanatory view showing the first seal portion 15, the coupling body 14, and the second seal portion 16 in FIG. is there.
A first seal portion 15 extending in the longitudinal direction is attached to each side wall along the longitudinal direction of the opening 5 a of the second private chamber 5, and the distal end portion of each first seal portion 15 is attached. Covers the entire area of the opening 5 a and is in contact with both side surfaces of the connector 14.
The second private chamber 5 is hermetically sealed by the first seal portion 15, and foreign matter such as oil mist and dust is prevented from entering the case 6 from the opening 5 a.
A second seal portion 16 that covers the space between the first seal portion 15 and the connection body 14 is attached to the connection body 14 on the side opposite to the timing belt 13 from the first seal portion 15.
The connecting body 14 and the first seal portion 15 are in contact with each other, the first seal portion 15 in the vicinity of the connecting body 14 is deformed, and both end portions in the moving direction of the connecting body 14 and the first seal portion 15 A gap 17 is formed between them. The second seal portion 16 covers the gap 17 and suppresses entry of foreign matters such as oil mist and dust into the case 6 from the gap 17.

The case 6 is formed by integrally extruding aluminum, and the case 6 is formed with a first attachment portion 6a that protrudes inward from the wall.
The space of the first private chamber 4 is partitioned from the space of the second private chamber 5 by a first cover 18 fixed to the first mounting portion 6a.
A gasket material 19 is sandwiched between the first attachment portion 6 a and the first cover 18, and the space between the first attachment portion 6 a and the first cover 18 enters the first private chamber 4. The entry of foreign matter is suppressed. Note that not only the gasket material 19 but also a sealing material such as Viton (registered trademark) or nitrile rubber excellent in dust resistance and oil resistance may be sandwiched between the first mounting portion 6a and the first cover 18. .

The case 6 is formed with a second attachment portion 6b that protrudes inward from the wall.
The space of the second private chamber 5 is partitioned from the space outside the case 6 by the second cover 20 fixed to the second mounting portion 6b.
A gasket material 21 is sandwiched between the second mounting portion 6 b and the second cover 20, and the space between the second mounting portion 6 b and the second cover 20 enters the second private chamber 5. The entry of foreign matter is suppressed. Note that not only the gasket material 21 but also a sealing material such as Viton (registered trademark) or nitrile rubber excellent in dust resistance and oil resistance may be sandwiched between the second mounting portion 6b and the second cover 20. .

Next, the operation of the automatic door device 1 according to this embodiment will be described.
First, the drive of the motor 9 is controlled by the controller 10, the pulley 11 rotates in one direction together with the output shaft 8, and the timing belt 13 also rotates in the same direction.
The connecting body 14 fixed to the timing belt 13 moves along the longitudinal direction of the opening 5a as the timing belt 13 rotates, and the door panel 3 connected to the connecting body 14 moves in one direction.
At this time, the gap 17 formed between the coupling body 14 and the first seal portion 15 moves with the movement of the coupling body 14, but the second seal portion 16 that moves together with the coupling body 14 moves to the gap. 17 is always covered, so the second private chamber 5 is always sealed.

As described above, according to the automatic door device 1 according to this embodiment, the first seal portion 15 has one end fixed to the second private chamber 5 and the other end covering the opening 5a. Since the second individual chamber 5 is sealed in contact with the connection body 14 and foreign matter is prevented from entering the case 6 from the opening 5a, the contact area between the first seal portion 15 and the connection body 14 is suppressed. The frictional force generated between the first seal portion 15 and the coupling body 14 is reduced, and the door panel 3 can be moved even with the motor 9 having a small rotational force.
Moreover, since the contact area of the 1st seal | sticker part 15 and the coupling body 14 is small, the generated noise can be made small.
Further, since the sealed first private chamber 4 is provided inside the sealed second private chamber 5, and the control unit 10 is provided inside the sealed first private chamber 4, the control unit 10 It is possible to further prevent foreign matter such as oil mist from adhering to the surface.
Further, since the first private chamber 4 is hermetically sealed, the motor 9 and the control unit 10 that are not processed such as waterproofing can be provided inside the first private chamber 4, and the automatic door device 1 as a whole. Can be miniaturized.

  Further, since the second seal portion 16 covers the gap 17 formed between the coupling body 14 and the first seal portion 15, foreign matter such as oil mist and dust is introduced into the case 6 from the gap 17. Can be prevented from entering.

  Moreover, since the connecting body 14 is moved using the rotational force of the motor 9 using the pulley 11 and the timing belt 13, the door panel 3 can be moved with a simple configuration.

  Further, since the pulley 11 and the timing belt 13 are provided inside the sealed second private chamber 5, it is possible to suppress foreign matter generated due to contact between the pulley 11 and the timing belt 13 from jumping out of the case 6. Can do.

  Further, since the case 6 is made of aluminum, noise such as electromagnetic waves generated by driving the motor 9 can be attenuated to reduce the influence on other devices.

Note that another connecting member 14 may be provided, and the two door panels 3 may be moved. In particular, the door panel 3 can be moved in opposite directions by connecting one connecting body 14 to the upper timing belt 13 and connecting the other connecting body 14 to the lower timing belt 13.
Further, the second seal portion 16 may be attached to the connecting body 14 inside the second private chamber 5. Thereby, it can further suppress that the foreign material generated by the contact of the pulley 11 and the timing belt 13 jumps out of the case 6.

Embodiment 2. FIG.
6A is a plan view of the automatic door device 1 according to this embodiment, FIG. 6B is a front view of the automatic door device 1 of FIG. 6A, and FIG. 7 is VII of FIG. 6B. It is arrow sectional drawing along the -VII line.
In the automatic door device 1 according to this embodiment, a gear 22 that is a rotating body that rotates by rotation of the output shaft 8 is attached between the first private chamber 4 and the second private chamber 5.
Inside the second private chamber 5, there is a slide rail 23 along the opening 5 a of the second private chamber 5, and a rack body that is slidably mounted on the slide rail 23 and meshes with the gear 22. A toothed rack 24 is attached.
The toothed rack 24 has three rotatable rollers 24 a, and the toothed rack 24 slides on the slide rail 23 as the rollers 24 a rotate on the slide rail 23.
One end of the coupling body 14 is connected to the toothed rack 24, and the other end of the coupling body 14 protrudes outside the second private chamber 5 through the opening 5 a and is connected to the door panel 3. Has been.
Further, the toothed rack 24 is made of oil-resistant rubber, and vibration and noise when contacting the gear 22 are reduced.
When the gear 22 is rotated by driving the motor 9, the toothed rack 24 slides on the slide rail 23, and the coupling body 14 moves along the opening 5a.
Other configurations are the same as those of the first embodiment.

According to the automatic door device 1 according to this embodiment, the rotational force of the motor 9 is transmitted to the coupling body 14 via the gear 22, the slide rail 23, and the toothed rack 24, so that the configuration is simplified. be able to. In particular, the timing belt 13 and the driven pulley 12 are not required, and further, the timing belt tension adjusting mechanism is not required, and the automatic door device 1 as a whole can be downsized.
Further, since the toothed rack 24 is made of oil-resistant rubber, vibration and noise when contacting the gear 22 can be reduced.

Embodiment 3 FIG.
FIG. 8A is a plan view of the automatic door device 1 according to this embodiment, and FIG. 8B is a front view of the automatic door device 1 of FIG. 8A.
The automatic door device 1 according to this embodiment includes another motor main body 25 disposed apart from the motor main body 7 inside the first private chamber 4 and the first private chamber 4 provided in the motor main body 25. A motor 27 having an output shaft 26 protruding outward and a control unit 28 provided inside the first private chamber 4 and controlling the drive of the motor 27 are further provided.
A pulley 29, which is a rotating body that rotates by the rotation of the output shaft 26, is attached between the first private chamber 4 and the second private chamber 5. The driven pulley 12 is not attached.
The control unit 10 and the control unit 28 control the driving of the motor 9 and the motor 27 so that the motor 9 and the motor 27 are synchronized.
Between the pulley 11 and the pulley 29, a timing belt 13 that transmits the rotational force generated by the rotation of the pulley 11 and the pulley 29 to the coupling body 14 is wound.
Other configurations are the same as those of the first embodiment.

According to the automatic door device 1 according to this embodiment, when the motor 9 and the motor 27 are driven synchronously, the pulley 11 and the pulley 29 rotate synchronously, and the timing belt 13 rotates. Since the door panel 3 moves together with the connecting body 14, each of the motor 9 and the motor 27 can be reduced in size.
Further, by using the motor 9 and the motor 27, the large door panel 3 can be moved without enlarging each motor.
Further, by downsizing the motor, for example, even when the motor cannot be driven due to a power failure, the door panel 3 can be easily moved by an operator by hand.

Embodiment 4 FIG.
FIG. 9A is a plan view of the automatic door device 1 according to this embodiment, and FIG. 9B is a front view of the automatic door device 1 of FIG. 9A.
The automatic door device 1 according to this embodiment includes another motor main body 25 disposed adjacent to the motor main body 7 inside the first private chamber 4 and the first private chamber 4 provided in the motor main body 25. A motor 27 having an output shaft 26 protruding outward and a control unit 28 provided inside the first private chamber 4 and controlling the drive of the motor 27 are further provided.
A gear 30, which is a rotating body that rotates by the rotation of the output shaft 26, is attached between the first private chamber 4 and the second private chamber 5.
The control unit 10 and the control unit 28 control the driving of the motor 9 and the motor 27 so that the motor 9 and the motor 27 are synchronized.
The gear 22 and the gear 30 are engaged with a toothed rack 24 slidably attached to the slide rail 23.
When the gear 22 and the gear 30 are rotated by driving the motor 9 and the motor 27, the toothed rack 24 slides on the slide rail 23, and the coupling body 14 moves along the opening 5a.
Other configurations are the same as those of the second embodiment.

  According to the automatic door device 1 according to this embodiment, when the motor 9 and the motor 27 are driven synchronously, the gear 22 and the gear 30 rotate synchronously, and the toothed rack 24 moves. Since the door panel 3 moves together with the coupling body 14, each of the motor 9 and the motor 27 can be reduced in size.

Embodiment 5 FIG.
FIG. 10 is an enlarged view of a main part of the automatic door device 1 according to this embodiment.
In the automatic door device 1 according to this embodiment, each of the pair of first seal portions 15 is formed in an L-shaped cross section, and the distal ends of the first seal portions 15 overlap each other to form the second. It is attached so that it may go to the outside of the private room 5 of this.
The connecting body 14 and the first seal portion 15 are in contact with each other, and a gap 17 is formed between both end portions in the moving direction of the connecting body 14 and the first seal portion 15.
The second seal portion 16 covers the gap 17 between the coupling body 14 and the first seal portion 15, and both end portions of the second seal portion 16 along the width direction of the opening 5a are The first seal portion 15 is bent.
Other configurations are the same as those of the first embodiment.

According to the automatic door device 1 according to this embodiment, since the first seal portion 15 is formed in an L-shaped cross section, the contact area with each first seal portion 15 is large, Since the contact area between the seal portion 15 and the coupling body 14 is also increased, the case 6 can be more reliably sealed.
In addition, since both end portions of the second seal portion 16 along the width direction of the opening 5a are bent toward the first seal portion 15 side, foreign matter from the outside of the case 6 is connected to the connecting body 14 and the first portion. It is possible to further suppress entry into the gap 17 between the first seal portion 15 and the first seal portion 15.

  In each of the above embodiments, the automatic door device 1 connected to the upper side of the door panel 3 has been described. Good.

  In the second and third embodiments, the automatic door device 1 including two motors has been described. However, the number is not limited to this.

It is a side view which shows a mode that the automatic door apparatus which concerns on Embodiment 1 was attached to the machine tool apparatus. 2A is a plan view of the automatic door device and the machine tool device of FIG. 1, and FIG. 2B is a front view of the automatic door device and the machine tool device of FIG. 2A. 3A is a plan view of the automatic door device of FIG. 1, and FIG. 3B is a front view of the automatic door device of FIG. 3A. It is arrow sectional drawing along the IV-IV line of FIG.3 (b). It is explanatory drawing which shows the 1st seal part of FIG. 4, a coupling body, and a 2nd seal part. 6A is a plan view of the automatic door device according to Embodiment 2, and FIG. 6B is a front view of the automatic door device of FIG. 6A. It is arrow sectional drawing along the VII-VII line of FIG.6 (b). FIG. 8A is a plan view of the automatic door device according to the third embodiment, and FIG. 8B is a front view of the automatic door device of FIG. FIG. 9A is a plan view of the automatic door device according to Embodiment 4, and FIG. 9B is a front view of the automatic door device of FIG. 9A. FIG. 10 is an enlarged view of a main part of an automatic door device according to a fifth embodiment.

Explanation of symbols

  DESCRIPTION OF SYMBOLS 1 Automatic door apparatus, 2 Machine tool apparatus, 3 Door panel, 4 1st private room, 5 2nd private room, 5a Opening part, 6 Case, 6a 1st attaching part, 6b 2nd attaching part, 7 Motor main body, 8 output shaft, 9 motor, 10 control unit, 11 pulley (rotating body), 12 driven pulley, 13 timing belt (rotational force transmitting means), 14 coupling body, 15 first seal portion, 16 second seal portion, 17 Gap, 18 First cover, 19 Gasket material, 20 Second cover, 21 Gasket material, 22 Gear (rotary body), 23 Slide rail, 24 Toothed rack (rotational force transmission means), 24a Roller, 25 Motor Main body, 26 output shaft, 27 motor, 28 control unit, 29 pulley (rotating body), 30 gear (rotating body).

Claims (5)

A case having a sealed first private chamber and a second private chamber surrounding the first private chamber and having an opening formed therein;
A motor main body provided inside the first private chamber and a motor having an output shaft provided in the motor main body and projecting outside the first private chamber;
A control unit that is provided inside the first private chamber and controls driving of the motor;
A rotating body provided in the second private chamber and rotated by rotation of the output shaft;
A rotational force transmitting means provided in the second private chamber for transmitting the rotational force of the rotating body;
One end portion is connected to the rotational force transmitting means, the other end portion protrudes outside the second private chamber through the opening, and the rotational force is transmitted by the rotational force transmitting means,
A door panel provided outside the case and connected to the other end of the connector;
One end portion is fixed to the second private chamber, the other end portion covers the opening, and contacts the connecting body to seal the second private chamber, and foreign matter enters the case through the opening. An automatic door device comprising: a first seal portion that suppresses this.   The connecting body on the side opposite to the rotational force transmitting means from the first seal portion is provided with a second seal portion that covers the space between the first seal portion and the connecting body. The automatic door device according to claim 1.   3. The automatic door device according to claim 1, wherein a plurality of the motors are provided, and each of the motors is driven in synchronization.   The automatic door device according to any one of claims 1 to 3, wherein the rotating body is a pulley, and the rotational force transmitting means is a belt wound around the pulley.   The automatic door device according to any one of claims 1 to 3, wherein the rotating body is a gear, and the rotational force transmitting means is a rack body that meshes with the gear.

Images