JP2011226191A - Automatic door device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a durable and safe automatic door device having a simple structure at a low manufacturing cost.SOLUTION: An automatic door device having a door main body 11 that horizontally slides open or close at an entrance of a building or the like comprises a guide rail 13 arranged along the top of the entrance and adjacent door pocket, a door main body 11 supported by the guide rail 13 for reciprocating between the entrance and the door pocket, a drive transmission component 23 fixed to the top of the door main body 11 and arranged along the width direction of the door main body 11, a drive motor 18 capable of forward and reverse driving arranged on a member of the entrance on the side adjacent to the building, and a drive wheel 20 that is driven in forward and reverse directions by the drive motor 18 with the circumference pressure-contacted to the drive transmission component 23. The rotation of the drive wheel 20 is converted into the direction for horizontally sliding the door main body 11 through friction with the drive transmission component 23, so that the door main body 11 is reciprocated.

Description

  The present invention relates to an automatic door device.

  Conventionally, in this type of automatic door device, the door is suspended by a suspension member held movably in the opening / closing direction of the door (entrance / exit) by a support rail, and the suspension member is driven by a motor. The driving belt and the driven pulley connected to the shaft are attached to a part of a timing belt made of endless rubber or the like stretched in the door opening / closing direction. Then, when the driving pulley is rotated by rotating the motor in the forward / reverse direction to reciprocate the timing belt, the suspension member is reciprocated together in the reciprocating direction of the timing belt. An automatic door device has been realized in such a way that the doors suspended by the suspension member are reciprocated together to open and close the doorway. (See Patent Document 1)

JP 2009-174220 A

However, in the above-described prior art, a timing belt formed of rubber or the like is used as a door driving means, so that there is a risk that the timing belt may expand or contract or break due to deterioration due to long-term use. Therefore, when the belt tension adjusting means for the timing belt is installed as an indispensable separate device or when the predetermined number of opening and closing times is reached, the entire door driving means for the timing belt is renewed. The current situation is that the equipment is replaced with a new one, which causes a factor that requires a considerable amount of equipment costs for the entire apparatus and maintenance and inspection costs.
Accordingly, an object of the present invention is to provide an automatic door device that can be manufactured at a low cost with a simple structure and has excellent durability in view of the above-described conventional problems.

The invention according to claim 1 for solving the above-described problem is an automatic door device that opens and closes a door main body by sliding a door main body in a lateral direction,
A guide rail disposed over the doorway and an upper portion of the door pocket adjacent to the doorway, the door body supported by the guide rail and capable of reciprocating between the doorway and the door pocket, and the door body A drive transmission member attached to the upper portion and disposed along the width direction of the door body; a drive motor capable of forward / reverse drive installed on a building-side member constituting the doorway; and the drive motor A driving wheel that is rotated forward and backward and whose outer peripheral surface is in pressure contact with the drive transmission member, and a direction in which the rotation of the drive wheel slides in the lateral direction of the door body through a frictional force with the drive transmission member The door main body is configured to reciprocate by converting into the above.
According to this configuration, in a state where the driving wheel that is rotated forward or reversely by the drive motor that is driven forward and backward and the drive transmission member on the door body side are in pressure contact with each other, the frictional force accompanying the rotation of the driving wheel Thus, the rotation of the drive wheel is converted and transmitted as a linear motion to the drive transmission member, whereby the drive transmission member is reciprocated in the same direction as the rotation direction of the drive wheel. At the same time, the door body slides in the horizontal direction and automatically opens and closes the entrance of a building or the like.

The invention according to claim 2 is the automatic door device according to claim 1,
The drive transmission member is mounted so as to be movable in a vertical direction with respect to a building-side member constituting the entrance / exit, and is always given elasticity in a direction in pressure contact with the drive wheel. .
According to this configuration, the drive transmission member is installed so as to be movable in the vertical direction, and an elastic force is always applied to the drive transmission member in a direction in pressure contact with the drive wheel, It is possible to enhance the pressure contact state with the drive transmission member and accurately perform the drive transmission.

In the first aspect of the present invention, the drive roller on the drive motor side and the drive transmission member on the door body side are opposed to each other in a pressure contact state, and the frictional force of both of them accompanying the rotation of the drive wheel The rotation of the drive wheel is converted and transmitted as a linear motion to the drive transmission member, so that the drive transmission member reciprocates in the same direction as the rotation direction of the drive wheel, so that the door main body can enter the entrance of the building or the like. It can be opened and closed automatically.
This means that the drive means transmits the drive wheel on the drive motor side and the drive transmission member on the door body side in a pressure contact state, so that the configuration is simplified, the production cost is low, and the durability is high. It is possible to provide an automatic door device that is excellent and safe.

  In the invention according to claim 2, in addition to the effect of claim 1, since the elastic force is always applied to the drive transmission member in the direction in pressure contact with the drive wheel, the drive wheel And the drive transmission member can be strengthened to accurately perform the drive transmission.

It is the whole front view of an automatic door device. It is the schematic of an automatic door apparatus. It is sectional drawing which shows the principal part of an automatic door apparatus.

  The best mode for carrying out the present invention will be described below with reference to the drawings.

  FIG. 1 is an overall schematic view of the automatic door device as viewed from the front. FIG. 2 is a schematic view of the automatic door device, and FIG. 3 is a cross-sectional view of the automatic door device.

  In the automatic door device of this embodiment, as shown in FIG. 1, the door main body 11 is configured to open and close a doorway of a building or the like in a sliding door manner, and constitutes the doorway of the building as a schematic explanation thereof. It is supported in a suspended manner through two left and right suspension brackets 14 and 14 provided with guide rollers 15 and 15 which roll along members, for example, guide rails 13 which will be described later formed on the side of the head or the like. Yes. The door body 11 is provided with first to fourth sensors S1, S2, S3, and S4 in order from the right in FIG. 1 for detecting the opening / closing position, and is associated with drive control of the drive motor described later. ing. Moreover, in FIG. 1, the state in which the door main body 11 is closed is shown by a solid line, and the state in which the door main body 11 is open is shown by a two-dot chain line.

  Next, the automatic door device according to the present embodiment will be described in detail with reference to FIGS. 2 and 3. A housing 12 formed in a key shape having a substantially inverted L-shaped cross section serves as an entrance / exit of a building. A member to be configured, for example, an upper surface portion such as a duck is installed between the doorway and the door pocket. The lower end portion of the casing 12 is bent upward to form a guide rail 13, and is bent downward from the lower piece and one side piece, the upper piece, and the upper piece end portion. In the space L surrounded by the hanging pieces, the main component of the automatic door device is located.

The door body 11 is formed in a rectangular plate shape having a predetermined thickness, and substantially L-shaped hanging brackets 14 and 14 are erected on both sides of the upper portion of the door body 11. Guide rollers 15 and 15 are mounted on the top of the vertical piece via a mounting bracket 16 that is rotatably supported. A substantially U-shaped groove on the outer periphery of the guide rollers 15, 15 is positioned on the guide rail 13 of the housing 12 so as to be able to roll.
Thus, the door main body 11 is configured to be reciprocally movable along the guide rail 13 and suspended from the guide rail 13 via the guide rollers 15 and 15 and the suspension brackets 14 and 14, that is, in the lateral direction. It is configured to slide to open and close (reciprocate) the doorway.
Further, the sensors S1, S2, S3, and S4 are respectively attached to the mounting brackets 17 that are attached to the inner surface of the upper piece of the casing 12 at the four locations. First and second magnets R1 and R2 related to the sensors S1, S2, S3, and S4 are attached to a mounting plate that is erected on the top of 16 respectively.

A drive motor 18 is mounted on the inner surface of the upper piece in the space of the housing 12 so as to be capable of forward and reverse rotation via a mounting seat plate 18a and an L-shaped bracket 18b. The drive shaft 19 is pivotally supported in a cantilevered manner on the L-shaped bracket 18b side so as to be rotatable in parallel with the above.
The drive shaft 19 is forwardly and reversely rotated from the motor shaft (not shown) via a reduction gear group (not shown) (only a cover member 19a of the reduction gear group is shown in the figure), and its shaft end (inner end shown). ) Is provided with a driving wheel 20.
The driving wheel 20 has a shaft portion (driving shaft 19) that slides in the lateral direction of the door body 11 and opens and closes (reciprocates) the door (the rotation of the driving wheel 20 is lateral). In the same direction as the sliding direction).

  A mounting bracket 21 having an L-shaped cross section is provided on the entire surface of the upper portion of the door body 11 in the width direction, and a relief hole 22 into which a support rod 24 of a drive transmission member 23 to be described later is fitted in the vicinity of both side ends thereof. 22 is penetrated.

The drive transmission member 23 arranged to face the upper side of the mounting bracket 21 has a gate shape in cross section and is formed to have a length substantially equal to at least the width direction of the door main body 11. The outer peripheral surface of the driving wheel 20 is placed in pressure contact with 23a.
Support rods 24, 24 are provided in a hanging manner on the back side of both side portions of the drive transmission member 23, and the lower ends of the support rods 24, 24 are located in the relief holes 22, 22 of the mounting bracket 21. And is provided on the outer periphery of the support rods 24, 24, and elastically applying means 25 such as a coil spring between the upper surface of the mounting bracket 21 and the lower surface of the drive transmission member 23. 25 are respectively mounted.
Thus, the elastic force applying means 25 and 25 always apply the elastic force to the drive transmission member 23 upward so that the upper surface of the drive transmission member 23 and the driving wheel 20 are always kept in pressure contact with each other. It is configured.
Accordingly, the rotation of the driving wheel 20 is converted and transmitted as a linear motion to the driving transmission member 23 by the frictional force accompanying the rotation of the driving wheel 20, and the driving transmission member 23 is transmitted to the driving wheel 20. It is reciprocated in the same direction as the rotation direction.
The stopper members 24a and 24a provided at the lower ends of the support rods 24 and 24 prevent the mounting bracket 21 from being withdrawn upward from the escape holes 22 and 22, respectively.

  Next, the opening / closing operation | movement of the door main body 11 in the automatic door apparatus of this embodiment is demonstrated, referring FIG. 2 and FIG.

  Now, in the door main body 11 portion of the automatic door device, the drive motor 18 is rotated forward (or reverse) by switching a switch such as an open / close switch in a control circuit (not shown) based on information for opening the door main body 11. When driven in the direction, the drive wheel 20 is rotated in the forward (or reverse) direction along with the drive shaft 19 via the motor shaft and a reduction gear group (both not shown). Since the rotating driving wheel 20 and the drive transmission member 23 on the door body 11 side are in pressure contact with each other, the rotation of the driving wheel 20 is driven by the frictional force accompanying the rotation of the driving wheel 20. It is converted and transmitted as a linear motion to the transmission member 23, and the drive transmission member 23 is moved in the same direction as the rotation direction of the drive wheel 20. That is, the door main body 11 slides in the horizontal direction together with the drive transmission member 23, and the doorway such as a building is automatically opened.

  When the opening operation of the door body 11 is completed, when the drive motor 18 is driven in the opposite direction by switching of an open / close switch or the like in the control circuit (not shown), the motor shaft, the reduction gear The driving wheel 20 is rotated together with the driving shaft 19 through a group (both not shown) in the opposite direction. In the same manner as described above, since the rotating drive wheel 20 and the drive transmission member 23 on the door body 11 side are in pressure contact with each other, the driving wheel 20 is driven by the frictional force accompanying the rotation of the drive wheel 20. The rotation of 20 is converted and transmitted as a linear motion to the drive transmission member 23, the drive transmission member 23 is moved in the same direction as the rotation direction of the drive wheel 20, and the door body 11 is laterally opposite to the above. It slides in the direction and automatically closes the entrance of a building or the like.

  In addition, in the pressure contact state between the driving wheel 20 to be rotated and the drive transmission member 23 on the door body 11 side, the drive transmission member 23 is always elastically applied to the driving wheel 20 side by the elastic force applying means 25 and 25. Therefore, the pressure contact state between the drive wheel 20 and the drive transmission member 23 is strengthened to accurately perform the drive transmission, and the movement of the pressure contact position between the drive wheel 20 and the drive transmission member 23 is performed. The drive transmission member 23 can be elastically inclined so that the frictional force in the pressure contact state between the drive wheel 20 and the drive transmission member 23 can be maintained as constant as possible.

In addition, the automatic door device of the present embodiment is provided with sensors S1 to S4 at four locations as described above. By controlling by connecting these sensors S1 to S4, the opening / closing speed of the door body 11 can be adjusted, and the door body 11 can be prevented from colliding at the terminal portion when the door body 11 is opened / closed.
That is, when the door body 11 is operated in the opening direction, when the second sensor S2 detects the approach of the first magnet R1 on the right side of the door body 11, the rotation of the drive motor 18 is controlled by the control based on the sensor S2. When the first sensor S1 detects the approach of the first magnet R1 of the door body 11, the door body 11 is terminated. Before reaching, the drive motor 18 is stopped by the control based on the first sensor S1, and the door body 11 is stopped.

  Next, when the door main body 11 is closed, when the third sensor S3 detects the approach of the second magnet R2 on the left side of the door main body 11 in the drawing, the rotation of the drive motor 18 is decelerated by the control and the door main body 11 is closed. The door body 11 is further closed while the speed is reduced, and when the fourth sensor S4 detects the approach of the second magnet R2 of the door body 11, the control based on the fourth sensor S4 is performed before the door 11 reaches the end. The door motor 11 can be stopped by stopping the drive motor 18.

When the door body 11 hits an obstacle when the door body 11 is closed, the drive wheel 20 and the drive transmission member 23 slide against the frictional force, thereby causing the door body 11 to slide. 11 can prevent an accident in which an obstacle or a person is caught and damage or injury occurs. Even if the drive wheel 20 and the drive transmission member 23 slip, the opening / closing position of the door body 11 is confirmed by each sensor in the control device, and the opening / closing of the door body 11 is controlled by the control device. Therefore, there is no need to adjust the open / close position.
Further, when an obstacle or a person is caught in the door main body 11, the operation control is performed so that the operation of the door main body 11 is reversed (opening operation) after a certain time (preset time) has passed. It is also possible to do.

  In the automatic door device of the present embodiment, the drive transmission member 23 pressed against the drive wheel 20 is urged by the elastic force applying means 25, 25 from the lower side toward the upper drive wheel 20. A constant frictional force between the wheel 20 and the drive transmission member 23 can be continuously maintained over a long period of time, and even if the drive wheel 20 is worn due to long-term use, it easily corresponds to the degree of wear. be able to.

  Therefore, in the automatic door device of the present embodiment, the structure of the device as a whole can be simplified and the automatic door device having excellent durability and safety can be obtained. In order to open and close the door main body 11 using the frictional force in the pressure contact state between the drive wheel 20 and the drive transmission member without using the motor, an automatic door opening / closing drive device can be realized with a simple structure. The effect of reducing the cost is also exhibited.

  In addition, in order to increase the frictional force between the drive wheel 20 and the drive transmission member 23, various processes can be applied to the pressure contact portions between the two.

  Moreover, although the case where the elasticity providing means 25 and 25 are provided at two places has been described, the present invention is not limited to this, and in the above-described embodiment, various modifications can be made without departing from the spirit of the present invention. It is.

DESCRIPTION OF SYMBOLS 11 Door main body 12 Housing | casing 13 Guide rail 14 Suspension bracket 18 Drive motor 20 Drive wheel 23 Drive transmission member 25 Elasticity provision means

Claims (2)

An automatic door device in which a door body slides in a doorway of a building etc.
A guide rail disposed over the doorway and an upper portion of the door pocket adjacent to the doorway, and the door body supported by the guide rail and reciprocally movable between the doorway and the door pocket portion;
A drive transmission member attached to the upper portion of the door body and disposed along the width direction of the door body, and a drive motor capable of forward / reverse drive and forward / reverse drive installed on a building-side member constituting the doorway And a drive wheel that is rotated forward and backward by the drive motor and whose outer peripheral surface is pressed against the drive transmission member, and the rotation of the drive wheel is caused to rotate through the frictional force with the drive transmission member. An automatic door device configured to reciprocate and move the door body in a direction that slides in a lateral direction. The automatic door device according to claim 1,
The drive transmission member is mounted so as to be movable in a vertical direction with respect to a building-side member constituting the entrance / exit, and is always given elasticity in a direction in pressure contact with the drive wheel. Automatic door device.

Images