Automatic door device and shock mitigation method for automatic door device

Abstract

To reduce the impact when a person hits a door.SOLUTION: An automatic door device 10, which is provided at an opening 102 of a building 100, includes a door 20 that is driven by a drive source 32 to move in an opening / closing direction d1 to function as a sliding door, a transmission member 34 that transmits a drive force from the drive source 32 to the door 20, a door hanger 40 that is attached to the top of the door 20 and suspended from a rail 16 that guides the door 20 in the opening / closing direction d1, a connecting member 50 that connects the door hanger 40 and the transmission member 34 to each other, and a displacement mechanism 60 that is provided so as to be able to displace a position of the door 20 relative to the connecting member 50 in the opposite direction when an external force in the opposite direction to the opening or closing direction acts on the door 20 moving in the opening or closing direction.SELECTED DRAWING: Figure 4

Description

Technical Field

[0001] The present invention relates to an automatic door device and a method for mitigating impact in an automatic door device.

Background Art

[0002] Conventionally, an automatic door as disclosed in Patent Document 1 is known. The automatic door disclosed in Patent Document 1 has a detection sensor that detects entry of a person into the movement area of the opening / closing door when the opening / closing door moves. When the controller determines based on the detection signal from the detection sensor that an object has entered the movement area, the opening / closing door is moved at a speed lower than a predetermined speed. Thus, the automatic door disclosed in Patent Document 1 has an advantage that a person who enters the movement area of the opening / closing door is prevented from colliding with the opening / closing door.

Prior Art Documents

Patent Documents

[0003]

Patent Document 1

Summary of the Invention

Problems to be Solved by the Invention

[0004] Even in an automatic door as disclosed in Patent Document 1, it is not possible to completely prevent a person who enters the movement area of the door from colliding with the door. Therefore, when a person who enters the movement area of the door collides with the door, it is required to mitigate the impact.

[0005] The present invention has been made in consideration of such points, and an object thereof is to mitigate the impact when a person collides with the door.

Means for Solving the Problems

[0006] An automatic door device according to an embodiment of the present invention is A door provided at an opening of a building, driven by a drive source, moving in an opening / closing direction, and functioning as a sliding door, A transmission member that transmits the driving force from the drive source to the door, A door hanger attached to the upper part of the door and suspended from a rail that guides the door along the opening / closing direction, A connecting member that connects the door hanger and the transmission member to each other, A displacement mechanism provided such that when an external force acting in a direction opposite to the opening or closing direction acts on the door moving in the opening or closing direction, the position of the door with respect to the connecting member can be displaced in the opposite direction.

[0007] A shock mitigation method in an automatic door device according to an embodiment of the present invention is A door provided at an opening of a building, driven by a drive source, moving in an opening / closing direction, and functioning as a sliding door, A transmission member that transmits the driving force from the drive source to the door, A door hanger attached to the upper part of the door and suspended from a rail that guides the door along the opening / closing direction, A connecting member that connects the door hanger and the transmission member to each other, A shock mitigation method in an automatic door device including a displacement mechanism, When an external force acting in a direction opposite to the opening or closing direction acts on the door moving in the opening or closing direction, the position of the door with respect to the connecting member is displaced in the opposite direction by the displacement mechanism.

Advantages of the Invention

[0008] According to the present invention, the impact when a person collides with the door can be mitigated.

Brief Description of the Drawings

[0009]

Figure 1

Figure 2

Figure 3

Figure 4

Figure 5

Figure 6

Figure 7

DETAILED DESCRIPTION OF THE INVENTION

[0010] One embodiment of the present disclosure relates to the following [1] to [6].

[0011] [1] A door provided at an opening of a building, driven by a drive source, moving in an opening / closing direction, and functioning as a sliding door, A transmission member that transmits the driving force from the drive source to the door, A door hanger attached to the upper part of the door and suspended from a rail that guides the door along the opening / closing direction, A connecting member that connects the door hanger and the transmission member to each other, An automatic door device including a displacement mechanism provided such that when an external force acting in a direction opposite to the opening or closing direction acts on the door moving in the opening or closing direction, the position of the door with respect to the connecting member can be displaced in the opposite direction.

[0012] [2] The automatic door device according to [1], wherein the displacement mechanism is provided such that the door is displaced with respect to the door hanger connected to the connecting member.

[0013] [3] The automatic door device according to [1], wherein the displacement mechanism is provided such that the door and the door hanger are displaced with respect to the connecting member.

[0014] [4] The displacement mechanism is provided such that when an external force acting in the closing direction acts on the door moving in the opening direction, the door is displaced with respect to the door hanger connected to the connecting member, according to any one of [1] to [3] of the automatic door device.

[0015] [5] The displacement mechanism is provided such that when the external force acting in the opposite direction becomes equal to or less than a predetermined force, the positional relationship of the door with respect to the connecting member returns to the positional relationship before the external force acts, according to any one of [1] to [4] of the automatic door device.

[0016] [6] A door provided at an opening of a building, driven by a drive source to move in the opening and closing directions and functioning as a sliding door, A transmission member that transmits the driving force from the drive source to the door, A door hanger attached to the upper part of the door and suspended from a rail that guides the door along the opening and closing directions, A connecting member that connects the door hanger and the transmission member to each other, A displacement mechanism, and a shock mitigation method in an automatic door device provided with the same, A shock mitigation method in an automatic door device, wherein when an external force acting in a direction opposite to the opening or closing direction acts on the door moving in the opening or closing direction, the position of the door with respect to the connecting member is displaced in the opposite direction by the displacement mechanism.

[0017] Hereinafter, an embodiment will be described with reference to the drawings. In the drawings attached to this specification, for the convenience of illustration and easy understanding, the scale, the vertical and horizontal dimensional ratios, etc. are appropriately changed and exaggerated from those of the actual object. Also, in some of the drawings, the configurations shown may be omitted in other drawings.

[0018] In addition, terms used in this specification that specify shapes, geometric conditions, and their degrees, such as terms like "parallel", "orthogonal", "identical", etc., and values of lengths and angles, etc., are not bound by strict meanings and are to be interpreted to include ranges that can be expected to have similar functions.

[0019] FIG. 1 is a view showing an embodiment of the present invention, and is a front view showing an example of a building 100 in which an automatic door device 10 is installed.

[0020] The automatic door device 10 of the present embodiment is provided at an opening 102 of the building 100. The opening 102 may be an entrance / exit through which people can pass. The automatic door device 10 may include a control unit 12, a sensor 14, and a door 20. The control unit 12 controls each element constituting the automatic door device 10. The sensor 14 detects an object approaching the automatic door device 10. The object that can be detected by the sensor 14 may be, for example, a person, an animal, a luggage, etc. The door 20 is configured to be able to open and close under the control of the control unit 12. In the present embodiment, the control unit 12 controls the opening and closing of the door 20 based on the detection result of the sensor 14. In particular, the control unit 12 opens the door 20 when the sensor 14 detects that an object has approached the automatic door device 10.

[0021] FIG. 2 is a front view showing an example of the automatic door device 10 with the door 20 closed, and FIG. 3 is a front view showing the automatic door device 10 with the door 20 open. The door 20 of the present embodiment is provided at the opening 102 of the building 100, and is driven by a drive source 32 described later to move in the opening / closing direction d1 and function as a sliding door. The door 20 moves along a direction that coincides with the surface direction of the door 20 to close or open the opening 102 of the building 100. In particular, the door 20 may be movable in a direction that coincides with the surface direction of the door 20 and is parallel to the horizontal direction. Here, the moving direction of the door 20 for closing or opening the opening 102 is defined as the opening / closing direction (first direction) d1. That is, the door 20 moves along the opening / closing direction d1 to close or open the opening 102 of the building 100.

[0022] The automatic door device 10 includes a door 20, a transmission member 34, a door hanger 40, and a connecting member 50. The automatic door device 10 may include a driving device 30 that drives the door 20. The driving device 30 may include the transmission member 34.

[0023] The automatic door device 10 of this embodiment has two doors 20, namely a first door 21 and a second door 22. In the automatic door device 10 of this embodiment, when the first door 21 and the second door 22 move so as to approach each other, the automatic door device 10 assumes the closed state shown in FIG. 2. Also, when the first door 21 and the second door 22 move so as to separate from each other, the automatic door device 10 assumes the open state shown in FIG. 3. Note that the automatic door device 10 may have only one door 20. The automatic door device 10 may be a multiple sliding door in which a plurality of door members move in conjunction with each other in the same direction to open and close. For example, the automatic door device 10 may be a double sliding door in which two door members move in conjunction with each other in the same direction to open and close.

[0024] The automatic door device 10 may include a rail 16. The rail 16 is a member that guides the door 20 along the opening and closing direction. In particular, the rail 16 supports and guides a later-described roller 44 of the door hanger 40. As the door hanger 40 moves along the opening and closing direction d1 while the roller 44 is guided by the rail 16, the door 20 moves along the opening and closing direction d1. The rail 16 may be located above the door 20. The rail 16 may extend linearly along the opening and closing direction d1.

[0025] The drive device 30 may include a drive source 32, a transmission member 34, a drive pulley 36, and a driven pulley 38. The drive source 32 is a device that generates a driving force, such as a motor. As shown in FIGS. 2 and 3, the drive source 32 is connected to the control unit 12 via a signal wiring and is controlled by the control unit 12. A sensor 14 is also connected to the control unit 12 via a signal wiring. With such a configuration, the control unit 12 can control the operation of the drive source 32 based on the detection result of the sensor 14. The drive source 32 supplies a driving force to the drive pulley 36. When a driving force is supplied from the drive source 32 to the drive pulley 36, the drive device 30 may be activated.

[0026] The control unit 12 may have one or more functions including a function of controlling the open / closed state of the door 20, a function of monitoring the presence or absence of an obstacle at the opening 102, and a function of monitoring the presence or absence of abnormalities in the sensor 14 and the drive device 30. The control unit 12 may issue an electrical signal for starting the drive device 30 based on the detection result of the sensor 14. The control unit 12 may include a control circuit. The control circuit may include a processor such as a CPU (Central Processing Unit) or an MPU (Micro Processing Unit). The control circuit may include a storage unit such as a ROM (Read Only Memory) or a RAM (Random Access Memory).

[0027] The transmission member 34 is a member that transmits the driving force supplied from the drive source 32 to the door 20. The transmission member 34 may be an annular member stretched between the drive pulley 36 and the driven pulley 38. The annular member may be, for example, an annular endless belt, a chain, or the like. The transmission member 34 is in contact with the outer peripheral surface of the drive pulley 36 from the outside in the radial direction of the drive pulley 36. The transmission member 34 is in contact with the outer peripheral surface of the driven pulley 38 from the outside in the radial direction of the driven pulley 38.

[0028] The transmission member 34 extends in the circumferential direction of the drive pulley 36 at the portion in contact with the drive pulley 36. The transmission member 34 extends in the circumferential direction of the driven pulley 38 at the portion in contact with the driven pulley 38. In the drive device 30 of the present embodiment, the drive pulley 36 rotates by the driving force of the drive source 32. When the drive pulley 36 rotates, the transmission member 34 circulates around the drive pulley 36 and around the driven pulley 38. The driven pulley 38 rotates together with the transmission member 34 when the transmission member 34 tilts.

[0029] The transmission member 34 includes a first portion 341 and a second portion 342. The first portion 341 and the second portion 342 are each located between a portion in contact with the driving pulley 36 and a portion in contact with the driven pulley 38. The second portion 342 is located above the first portion 341. The first portion 341 and the second portion 342 may each extend along the opening and closing direction d1. In the example shown in FIGS. 2 and 3, the first portion 341 extends across the lower end of the driving pulley 36 and the lower end of the driven pulley 38. Also, the second portion 342 extends across the upper end of the driving pulley 36 and the upper end of the driven pulley 38.

[0030] The door hanger 40 is a member that suspends the door 20 from the rail 16. The door hanger 40 is attached to the upper part of the door 20 and is suspended from the rail 16. A plurality of door hangers 40 may be attached to one door 20. In the example shown in FIGS. 2 and 3, two door hangers 40 are attached to one door 20 (the first door 21, the second door 22) with an interval in the opening and closing direction d1.

[0031] Each door hanger 40 may include a main body portion 42 and a roller 44. The main body portion 42 is a portion attached to the door 20. The roller 44 is attached to the main body portion 42 and is configured to be movable along the rail 16 while rotating. Each door hanger 40 may each have a plurality of rollers 44. For example, each door hanger 40 may each have two rollers 44. The two rollers 44 may be arranged with an interval in the opening and closing direction d1.

[0032] The connecting member 50 is a member that connects the door hanger 40 and the transmission member 34 to each other. The connecting member 50 is fixed to the transmission member 34 of the driving device 30. In the example shown in FIGS. 2 and 3, the connecting member 50 connected to the first door 21 via the door hanger 40 is fixed to the first portion 341 of the transmission member 34. Also, the connecting member 50 connected to the second door 22 via the door hanger 40 is fixed to the second portion 342 of the transmission member 34.

[0033] In the closed state shown in FIG. 2, when the sensor 14 detects that an object is approaching the automatic door device 10, the control unit 12 drives the drive source 32 to rotate the drive pulley 36 clockwise. As a result, the first portion 341 of the transmission member 34 moves leftward, and the second portion 342 moves rightward. The first door 21 connected to the first portion 341 moves leftward along the opening / closing direction d1. Also, the second door 22 connected to the second portion 342 moves rightward along the opening / closing direction d1. When the drive pulley 36 rotates by a predetermined number of rotations, the control unit 12 controls the drive source 32 to stop the rotation of the drive pulley 36. As a result, the transmission member 34 and the door 20 (the first door 21 and the second door 22) stop. Thereby, the automatic door device 10 transitions from the closed state shown in FIG. 2 to the open state shown in FIG. 3.

[0034] When transitioning the automatic door device 10 from the open state shown in FIG. 3 to the closed state shown in FIG. 2, the control unit 12 drives the drive source 32 to rotate the drive pulley 36 counterclockwise. As a result, the first portion 341 of the transmission member 34 moves rightward, and the second portion 342 moves leftward. The first door 21 connected to the first portion 341 moves rightward along the opening / closing direction d1. Also, the second door 22 connected to the second portion 342 moves leftward along the opening / closing direction d1. When the drive pulley 36 rotates by a predetermined number of rotations, the control unit 12 controls the drive source 32 to stop the rotation of the drive pulley 36. As a result, the transmission member 34 and the door 20 (the first door 21 and the second door 22) stop. Thereby, the automatic door device 10 transitions from the open state shown in FIG. 3 to the closed state shown in FIG. 2.

[0035] In a conventional automatic door, it is impossible to completely prevent a person who enters the moving area of the door from colliding with the door. Therefore, when a person who enters the moving area of the door collides with the door, it is required to mitigate the impact. The automatic door device 10 of the present embodiment includes a displacement mechanism 60 for mitigating the impact when a person collides with the door. Hereinafter, the displacement mechanism 60 will be described.

[0036] Referring to FIGS. 4 and 5, an example of the displacement mechanism 60 will be described. FIG. 4 is an enlarged view showing the portion marked A in FIG. 3, and shows an example of the displacement mechanism 60. FIG. 5 is a diagram showing the operation of the displacement mechanism 60. In FIGS. 4 and 5, a part of the door 20 (the first door 21) is shown in cross section.

[0037] The displacement mechanism 60 is provided such that when an external force acting in a direction opposite to the opening or closing direction acts on the door 20 that moves in the opening or closing direction d1 of the opening or closing direction, the position of the door 20 with respect to the connecting member 50 can be displaced in the opposite direction. In the example shown in FIGS. 4 and 5, the opening or closing direction corresponds to the direction in which the door 20 opens, and the opposite direction corresponds to the direction in which the door 20 closes. That is, in the illustrated example, when the door 20 is moving from the closed state to the open state and an external force in the direction of closing the door 20 acts on the door 20, the displacement mechanism 60 can displace the position of the door 20 with respect to the connecting member 50 in the direction of closing the door 20.

[0038] In the example shown in FIGS. 4 and 5, the door hanger 40 and the connecting member 50 are fixed to each other. As means for fixing the door hanger 40 and the connecting member 50, fastening means such as bolts may be used, for example.

[0039] In the examples shown in FIGS. 4 and 5, the displacement mechanism 60 is provided such that the door 20 is displaced with respect to the door hanger 40 connected to the connecting member 50. Such a displacement mechanism 60 may include a spring 62 disposed between the door 20 and the door hanger 40. The spring 62 may be, for example, a coil spring. A guide rail 24 is provided at the upper part of the door 20 in the illustrated example. The main body 42 of the door hanger 40 is configured to be movable along the guide rail 24 in the opening and closing direction d1 with respect to the door 20. Therefore, the door 20 and the door hanger 40 are movable relative to each other along the opening and closing direction d1. Note that the displacement mechanism 60 may have a mechanism for restricting the moving range of the door 20 and the door hanger 40 along the opening and closing direction d1 to a predetermined range. The door 20 has a receiving portion 26, and the door hanger 40 has a receiving portion 46. The spring 62 is disposed between the receiving portion 26 of the door 20 and the receiving portion 46 of the door hanger 40. When the receiving portion 26 and the receiving portion 46 approach each other, the receiving portion 26 and the receiving portion 46 receive the elastic force from the spring 62.

[0040] In this specification, the portion that becomes the front end in the advancing direction of the door 20 when the door 20 is closed is called the door tip. Also, the portion that becomes the front end in the advancing direction of the door 20 when the door 20 is opened is called the door butt. When a person collides with the door butt of the door 20 while the door 20 is moving in the opening or closing direction (especially the opening direction) during the process of opening the door 20, an external force acting in the opposite direction (especially the closing direction) acts on the door 20. As described above, the door 20 and the door hanger 40 are movable relative to each other along the opening and closing direction d1. Therefore, due to this external force, as shown in FIG. 5, the door 20 is displaced in the opposite direction (closing direction) with respect to the door hanger 40. Thereby, the impact generated on the person who collided with the door 20 can be mitigated. In particular, when the displacement mechanism 60 includes the spring 62, the spring 62 absorbs the impact due to the external force, so that the impact can be more effectively mitigated.

[0041] When an external force acting in the opposite direction (closing direction) becomes equal to or less than a predetermined force due to a person who has collided with the door 20 moving away from the door 20 or the like, the door 20 may be displaced in the opening or closing direction (opening direction). For example, when the displacement mechanism 60 includes a spring 62, the door 20 is displaced in the opening or closing direction (opening direction) by the elastic force of the spring 62 compressed between the receiving portion 26 of the door 20 and the receiving portion 46 of the door hanger 40.

[0042] Next, with reference to FIGS. 6 and 7, another example of the displacement mechanism 60 will be described. FIG. 6 is a diagram showing an enlarged view of a portion to which A is attached in FIG. 3, and shows another example of the displacement mechanism 60. FIG. 7 is a diagram showing the operation of the displacement mechanism 60.

[0043] The displacement mechanism 60 is provided such that when an external force acting in the opposite direction to the opening or closing direction acts on the door 20 that moves in the opening or closing direction d1 of the opening or closing direction, the position of the door 20 with respect to the connecting member 50 can be displaced in the opposite direction. In the example shown in FIGS. 6 and 7, the opening or closing driving direction corresponds to the direction in which the door 20 opens, and the opposite direction corresponds to the direction in which the door 20 closes. That is, in the illustrated example, when the door 20 is moving from the closed state to the open state, the displacement mechanism 60 displaces the door 20 in the direction of closing the door 20 with respect to the connecting member 50 when an external force in the direction of closing the door 20 acts on the door 20.

[0044] In the example shown in FIGS. 6 and 7, the door 20 and the door hanger 40 are fixed to each other. As means for fixing the door 20 and the door hanger 40, for example, fastening means such as bolts may be used.

[0045] In the examples shown in FIGS. 6 and 7, the displacement mechanism 60 is provided such that the door 20 and the door hanger 40 are displaced with respect to the connecting member 50. As described above, in the examples shown in FIGS. 6 and 7, the opening or closing driving direction corresponds to the direction in which the door 20 opens, and the opposite direction corresponds to the direction in which the door 20 closes. In this case, the displacement mechanism 60 is provided such that when an external force in the closing direction acts on the door 20 that is moving in the opening direction, the door 20 is displaced with respect to the door hanger 40 connected to the connecting member 50.

[0046] Such a displacement mechanism 60 may include a spring 64 disposed between the door hanger 40 and the connecting member 50. The spring 64 may be, for example, a coil spring. The door hanger 40 and the connecting member 50 are movable relative to each other along the opening and closing direction d1. In addition, the displacement mechanism 60 may have a mechanism for restricting the moving range of the door hanger 40 and the connecting member 50 along the opening and closing direction d1 to a predetermined range. The door hanger 40 has a receiving portion 48, and the connecting member 50 has a receiving portion 52. The spring 64 is disposed between the receiving portion 48 of the door hanger 40 and the receiving portion 52 of the connecting member 50. When the receiving portion 48 and the receiving portion 52 approach each other, the receiving portion 48 and the receiving portion 52 receive the elastic force from the spring 64.

[0047] During the process of the door 20 opening, if a person collides with the butt of the door 20 when the door 20 is moving in the opening or closing direction (opening direction), an external force in the opposite direction (closing direction) acts on the door 20. As described above, the door hanger 40 and the connecting member 50 are movable relative to each other along the opening and closing direction d1. Therefore, due to this external force, as shown in FIG. 7, the door 20 and the door hanger 40 are displaced in the opposite direction (closing direction) with respect to the connecting member 50. Thereby, the impact on the person who collided with the door 20 can be mitigated. In particular, when the displacement mechanism 60 includes the spring 64, the spring 64 absorbs the impact due to the external force, so that the impact can be more effectively mitigated.

[0048] When an external force acting in the opposite direction (closing direction) becomes equal to or less than a predetermined force, for example, when a person who has collided with the door 20 moves away from the door 20, the displacement mechanism 60 may be provided such that the positional relationship of the door 20 with respect to the connecting member 50 returns to the positional relationship before the external force acts. For example, when the displacement mechanism 60 includes a spring 64, the elastic force of the spring 64 compressed between the receiving portion 48 of the door hanger 40 and the receiving portion 52 of the connecting member 50 causes the door 20 to displace in the opening or closing direction (opening direction). Thereby, when a person who has collided with the door 20 moves away from the door 20, the door 20 can be returned to a predetermined position. Therefore, it is possible to suppress a decrease in the opening width of the door 20 in the open state or the occurrence of a gap on the leading edge side of the door 20 in the closed state.

[0049] In the examples shown in FIGS. 4 to 7, the following changes may be further made.

[0050] Instead of the springs 62 and 64, the displacement mechanism 60 may include, for example, an air damper, a hydraulic damper, or the like. Further, at least two of the springs 62 and 64, the air damper, and the hydraulic damper may be used in combination.

[0051] The displacement mechanism 60 may correspond such that the opening or closing direction corresponds to the direction in which the door 20 closes and the opposite direction corresponds to the direction in which the door 20 opens. That is, when the door 20 is moving from the open state to the closed state, when an external force in the direction of opening the door 20 acts on the door 20, the displacement mechanism 60 may displace the door 20 with respect to the connecting member 50 in the direction of opening the door 20.

[0052] In FIGS. 4 to 7, an example is shown in which the displacement mechanism 60 is provided corresponding to the door hanger 40 on the door butt side of the door 20. However, the present invention is not limited to this, and the displacement mechanism 60 may be provided corresponding to the door hanger 40 on the door tip side of the door 20. Thereby, when the door 20 is moving from the open state to the closed state, when an external force in the direction of opening the door 20 acts on the door 20, the displacement mechanism 60 can displace the door 20 in the direction of opening the door 20 with respect to the connecting member 50. For example, when a person collides with the door tip of the door 20 while the door 20 is moving in the opening or closing direction (closing direction) during the closing process of the door 20, an external force in the opposite direction (opening direction) acts on the door 20. Due to this external force, the door 20 is displaced in the opposite direction (opening direction) with respect to the connecting member 50. Also in this case, the impact on the person who collided with the door 20 can be mitigated.

[0053] Further, the displacement mechanism 60 may be provided corresponding to both the door hanger 40 on the door butt side and the door hanger 40 on the door tip side of the door 20. In this case, whether a person collides with the door tip or a person collides with the door butt, the impact on the person who collided with the door 20 can be mitigated.

[0054] The automatic door device 10 may have a mechanism for restricting the movement of the door 20 and the connecting member 50 along the opening / closing direction d1 when the door 20 starts to open and / or when the door 20 starts to close. Thereby, when the door 20 starts to open and / or when the door 20 starts to close, it is possible to prevent the door 20 from unintentionally moving in the opening / closing direction d1 with respect to the connecting member 50.

[0055] The automatic door device 10 of the present embodiment is provided at the opening 102 of the building 100, and includes a door 20 that is driven by a drive source 32 to move in the opening and closing direction d1 and functions as a sliding door, a transmission member 34 that transmits the driving force from the drive source 32 to the door 20, a door hanger 40 that is attached to the upper part of the door 20 and is suspended from a rail 16 that guides the door 20 along the opening and closing direction d1, a connecting member 50 that connects the door hanger 40 and the transmission member 34 to each other, and a displacement mechanism 60 that is provided so that the position of the door 20 with respect to the connecting member 50 can be displaced in the opposite direction when an external force acting in the direction opposite to the opening or closing direction acts on the door 20 that is moving in the opening or closing direction.

[0056] The impact mitigation method in the automatic door device 10 of the present embodiment is an impact mitigation method in the automatic door device 10 including a door 20 that is provided at the opening 102 of the building 100, is driven by a drive source 32 to move in the opening and closing direction d1, and functions as a sliding door, a transmission member 34 that transmits the driving force from the drive source 32 to the door 20, a door hanger 40 that is attached to the upper part of the door 20 and is suspended from a rail 16 that guides the door 20 along the opening and closing direction d1, a connecting member 50 that connects the door hanger 40 and the transmission member 34 to each other, and a displacement mechanism 60. When an external force acting in the direction opposite to the opening or closing direction acts on the door 20 that is moving in the opening or closing direction, the position of the door 20 with respect to the connecting member 50 is displaced in the opposite direction by the displacement mechanism 60.

[0057] When a person collides with the door 20 while the door 20 is moving in the opening or closing direction of the opening and closing direction d1, an external force acting in the direction opposite to the opening or closing direction acts on the door 20. According to the automatic door device 10 of the present embodiment and the displacement method of the door 20 in the automatic door device 10, the displacement mechanism 60 displaces the door 20 in the opposite direction to the direction in which the external force acts with respect to the connecting member 50, so that the impact on the person who collided with the door 20 can be effectively mitigated.

[0058] In the automatic door device 10 of the present embodiment, the displacement mechanism 60 is provided so that the door 20 is displaced with respect to the door hanger 40 connected to the connecting member 50.

[0059] According to such an automatic door device 10, even though the displacement mechanism 60 is provided, it is not necessary to change the connecting member 50 from the conventional one. Therefore, it is possible to suppress the complication of the structure of the automatic door device 10.

[0060] In the automatic door device 10 of the present embodiment, the displacement mechanism 60 is provided so that the door 20 and the door hanger 40 are displaced with respect to the connecting member 50.

[0061] According to such an automatic door device 10, even though the displacement mechanism 60 is provided, it is not necessary to change the door 20 from the conventional one. Therefore, it is not necessary to change the design of the door 20, and it is possible to realize the displacement mechanism 60 while using the conventional door 20.

[0062] In the automatic door device 10 of the present embodiment, the displacement mechanism 60 is provided so that the door 20 is displaced with respect to the door hanger 40 connected to the connecting member 50 when an external force in the closing direction acts on the door 20 that is moving in the opening direction.

[0063] According to such an automatic door device 10, when a person collides with the trailing edge of the door 20 while the door 20 is moving in the opening direction during the opening process of the door 20, the impact caused to the person who collided with the door 20 can be mitigated. In particular, when the automatic door device 10 is a multi-slide door, when a person collides with the trailing edge of the door 20 when the door 20 is opening, a greater impact can act on the person. Therefore, when the automatic door device 10 is a multi-slide door, it is more important to mitigate the impact caused to the person who collided with the door 20 when a person collides with the trailing edge of the door 20.

[0064] In the automatic door device 10 of the present embodiment, the displacement mechanism 60 is provided so that the positional relationship of the door 20 with respect to the connecting member 50 returns to the positional relationship before the external force acts when the external force in the opposite direction becomes equal to or less than a predetermined force.

[0065] According to such an automatic door device 10, when a person who has collided with the door 20 leaves the door 20, the door 20 can be returned to a predetermined position. Therefore, it is possible to suppress the opening width of the door 20 from becoming narrow in the open state or a gap from occurring on the leading edge side of the door 20 in the closed state.

[0066] In the above-described embodiment, when the door 20 starts to move and / or when the door 20 stops, the control unit 12 may control the drive source 32 to restrict the movement of the door 20 along the opening / closing direction d1. Thereby, when the door 20 starts to move and / or when the door 20 stops, it is possible to suppress the door 20 from swinging unintentionally in the opening / closing direction d1.

[0067] Further, the displacement mechanism 60 may be configured to displace the door 20 and the door hanger 40 in the opposite direction with respect to the connecting member 50 only when an external force equal to or greater than a predetermined magnitude acting in the opposite direction acts on the door 20 moving in the opening or closing direction. According to such a displacement mechanism 60, it is possible to suppress the door 20 from swinging unintentionally in the opening / closing direction d1 during the opening / closing drive of the door 20.

[0068] The displacement mechanism 60 may have a locking mechanism that does not displace the door 20 and the door hanger 40 with respect to the connecting member 50 when the door 20 starts to move. According to such a displacement mechanism 60, it is possible to suppress the door 20 from swinging unintentionally in the opening / closing direction d1 when the door 20 starts to move.

[0069] Among the embodiments disclosed in this specification, those composed of a plurality of objects may integrate the plurality of objects, and conversely, those composed of one object may be divided into a plurality of objects. Whether integrated or not, it may be configured to achieve the object of the invention.

Explanation of Reference Numerals

[0070] 10 Automatic door device 12 Control unit 14 Sensor 16 rails 20 doors 21 First door 22 Second door 24 Guide rail 26 Receiving part 30 Driving device 32 Driving source 34 Transmission member 341 First part 342 Second part 36 Driving pulley 38 Driven pulley 40 Door hanger 42 Body part 44 Roller 46 Receiving part 48 Receiving part 50 Connecting member 52 Receiving part 60 Displacement mechanism 62 Spring 64 Spring 100 Building 102 Opening d1 Opening / closing direction (first direction)

Claims

1. A door provided at an opening of a building, driven by a drive source to move in an opening / closing direction and function as a sliding door, a transmission member that transmits the driving force from the drive source to the door, a door hanger attached to the upper part of the door and suspended on a rail that guides the door along the opening / closing direction, a connecting member that connects the door hanger and the transmission member to each other, a displacement mechanism provided such that when an external force acting in a direction opposite to the opening or closing direction acts on the door moving in the opening or closing direction, the position of the door with respect to the connecting member can be displaced in the opposite direction. An automatic door device comprising the same.

2. The displacement mechanism is provided such that the door is displaced with respect to the door hanger connected to the connecting member. The automatic door device according to Claim 1.

3. The displacement mechanism is provided such that the door and the door hanger are displaced with respect to the connecting member. The automatic door device according to Claim 1.

4. The displacement mechanism is provided such that when an external force acting in the closing direction acts on the door moving in the opening direction, the door is displaced with respect to the door hanger connected to the connecting member. The automatic door device according to Claim 1.

5. The displacement mechanism is provided such that when the external force acting in the opposite direction becomes equal to or less than a predetermined force, the positional relationship of the door with respect to the connecting member returns to the positional relationship before the external force acts. The automatic door device according to any one of Claims 1 to 3.

6. A door provided at an opening of a building, driven by a drive source to move in an opening / closing direction and function as a sliding door, a transmission member that transmits the driving force from the drive source to the door, a door hanger attached to the upper part of the door and suspended on a rail that guides the door along the opening / closing direction, a connecting member that connects the door hanger and the transmission member to each other, A shock mitigation method in an automatic door device comprising a displacement mechanism, wherein when an external force acting in a direction opposite to the opening or closing direction acts on the door moving in the opening or closing direction, the position of the door with respect to the connecting member is displaced in the opposite direction by the displacement mechanism. A shock mitigation method in an automatic door device.

Images