Door assist devices and automatic door devices

Abstract

To provide a door assist device and an automatic door device which can drive opening / closing of an automatic door body further efficiently.SOLUTION: A door assist device 2, which is used together with an automatic door body moving from a closed side to an open side in the opening / closing direction through an intermediate position Q3, includes a door opening force applying section 3 having a fixed section 31 and a movable section 32 that moves in the opening / closing direction, an assist driving section 4 which is connected to the door opening force applying section 3 and moves the door opening force applying section 3 to the opening side in the opening / closing direction, and a control section 6 that controls the assist driving section 4 and expands / contracts the assist driving section 4. The movable section 32 of the door opening force applying section 3 moves to the opening side in the opening / closing direction and pushes out the automatic door body when the automatic door body is positioned at the intermediate position Q3, thereby applying an opening force to the automatic door body on the opening side in the opening / closing direction.SELECTED DRAWING: Figure 4

Description

[Technical Field]

[0001] The present invention relates to a door assist device and an automatic door system. [Background technology]

[0002] As is well known, automatic door systems are widely used, for example, by installing an automatic door body in an opening formed in the wall of a building or the like, and when a user is detected by a sensor installed near the opening, automatically sliding the automatic door body to open or close, allowing the user to pass through efficiently (see, for example, Patent Document 1). However, with door systems that use such motors, there is a limit to how quietly the automatic door system can be operated, as the motor that rotates to open and close the automatic door body generates driving noise.

[0003] Therefore, as shown in Patent Document 2, an automatic door system has been devised that has an expandable member that changes shape with power or heat, and a control unit controls the power or heat to expand or contract the expandable member, thereby moving or changing the position of the automatic door body.With this automatic door system, there is no need to use a motor in the drive unit, so it is possible to reduce the noise generated when the automatic door body opens and closes. [Prior art documents] [Patent documents]

[0004] [Patent Document 1] Japanese Patent Application Laid-Open No. 2006-197750 [Patent Document 2] Japanese Patent Application Laid-Open No. 2016-199900 Summary of the Invention [Problem to be solved by the invention]

[0005] However, unlike automatic door systems equipped with motors, the system described in Patent Document 2 has a problem in that it has weak maneuverability when opening and closing, and the automatic door itself opens and closes slowly. Furthermore, if a stronger voltage is applied to the expandable member to increase maneuverability, a thicker expandable member is required to withstand the voltage.

[0006] The present invention has been made in consideration of the above circumstances, and aims to provide a door assist device and an automatic door system that can drive the opening and closing of an automatic door body more efficiently. [Means for solving the problem]

[0007] In order to solve the above problems, the present invention proposes the following means. The door assist device of a first aspect of the present invention is a door assist device used with an automatic door main body that moves along the opening and closing direction, passing through an intermediate position from the closing side to the opening side, and comprises: a door opening force applying unit having a fixed part fixed to the periphery of the automatic door main body and a movable part that moves along the opening and closing direction; an assist drive unit connected to the door opening force applying unit and moving the door opening force applying unit toward the opening side in the opening and closing direction; and a control unit that controls the assist drive unit to extend and retract the assist drive unit, and when the automatic door main body is in the intermediate position, the movable part of the door opening force applying unit moves toward the opening side in the opening and closing direction to push the automatic door main body out, applying an opening force to the automatic door main body on the opening side in the opening and closing direction. [Effects of the Invention]

[0008] The door assist device and automatic door system according to the present invention can efficiently drive the opening and closing of the automatic door body. [Brief explanation of the drawings]

[0009] [Figure 1] 1 is a front view showing a state in which an automatic door main body of an automatic door apparatus according to an embodiment of the present invention is in a closed position; [Figure 2] FIG. 2 is a front view showing the automatic door device with the automatic door main body in the open position. [Figure 3] 2 is a diagram illustrating an example of a schematic configuration of an automatic door driving unit of the automatic door device. FIG. [Figure 4] 1 is an enlarged view of the door assist device of the automatic door system, showing a state in which the tip of the contact part provided in the door opening force applying part is in the start position. [Figure 5] 1 is an enlarged view of the door assist device of the automatic door system, showing a state in which the tip of the contact portion provided in the door opening force applying portion is in the contact position. FIG. [Figure 6] 1 is an enlarged view of the door assist device of the automatic door system, showing the state in which the tip of the contact part provided in the door opening force applying part is in the completion position. [Figure 7] 1A and 1B are diagrams showing the automatic door body of the automatic door device in a closed position and the tip of the abutment part in a start position. [Figure 8] 1A and 1B are diagrams showing the automatic door body of the automatic door device in an intermediate position and the tip of the abutting part in an abutting position. [Figure 9] 10A and 10B are diagrams showing the automatic door body of the automatic door device in the open position and the tip of the abutment part in the completed position. [Figure 10] 10A and 10B are diagrams showing the automatic door body of the automatic door device in the open position and the tip of the abutment part in the start position. [Figure 11] 10A and 10B are diagrams showing the automatic door device with the automatic door body in an intermediate position and the tip of the abutment part in a start position. DETAILED DESCRIPTION OF THE INVENTION

[0010] (One embodiment) An embodiment of the present invention will be described with reference to Figures 1 to 11. In the embodiments and modifications described below, corresponding components will be denoted by the same reference numerals, and descriptions of overlapping parts may be omitted. Furthermore, in the following description, expressions indicating relative or absolute arrangements, such as "parallel," "orthogonal," "center," and "coaxial," not only strictly indicate such arrangements, but also indicate a state in which there is a relative displacement with a tolerance or an angle or distance that provides the same function.

[0011] [Automatic door device 1] First, the overall configuration of an automatic door system 1 according to one embodiment of the present invention will be described with reference to Figures 1 and 2. Figure 1 is a front view showing the automatic door main body 11 of the automatic door system 1 in a closed position P1. Figure 2 is a front view showing the automatic door main body 11 of the automatic door system 1 in an open position P2.

[0012] In the following description of the automatic door device 1, the vertically lower side in the vertical direction A, which is the installation surface side of the automatic door device 1, is referred to as the lower side A2, and the vertically upper side in the vertical direction A, which is the opposite side of the installation surface, is referred to as the upper side A1. The horizontal direction perpendicular to the vertical direction A along the wall H is referred to as the opening / closing direction B. In the opening / closing direction B, the left side when the automatic door main body 11 of the automatic door device 1 described below is in the closed position P1 is referred to as the closed side B1. In the opening / closing direction B, the right side when the automatic door main body 11 is in the open position P2 is referred to as the open side B2. In this embodiment, the automatic door main body 11 is in the closed position P1 when it completely blocks the entrance TA of the opening T and is stopped on the closed side B1. In addition, the automatic door main body 11 is in the open position P2 when it is stopped at the open side B2, opening the entrance TA of the opening T to allow people and objects to pass through.

[0013] As shown in Fig. 1 or 2, the automatic door device 1 is installed at an opening T formed in a wall H of a building. The automatic door device 1 is configured to detect a user approaching the opening T using conventionally known sensors (hereinafter simply referred to as sensors), such as non-contact sensors, combined sensors, automatic door sensors, and auxiliary sensors (all not shown), and to open and close the automatic door main body 11, thereby allowing the user to pass through the entrance / exit TA efficiently. The automatic door device 1 comprises a transom 10, the automatic door main body 11, an automatic door drive unit 12, an energy supply unit 13, an automatic door control unit 14 (see Fig. 3), and a door assist device 2.

[0014] [Mume 10] The gate 10 is a case that stores sensors (not shown) and the rail 100. The gate 10 has an automatic door main body 11 attached to the lower side A2 via the rail 100.

[0015] The automatic door main body 11 is placed on the rail 100 via rollers 113 provided at the connecting portion 110 of the automatic door main body 11. The rail 100 is preferably inclined downward A2 from the open side B2 to the closed side B1 in the opening and closing direction B. The inclination of the rail 100 allows the automatic door main body 11 to move by gravity along the rail 100 to the closed side B1 when the supply of power or heat from the energy supply unit 13 to the automatic door drive unit 12 is stopped or reduced. In this case, the automatic door drive unit 12, which will be described later, is positioned along the inclination of the rail 100. The length of the rail 100 is set corresponding to the movement distance of the automatic door main body 11 at the opening T.

[0016] [Automatic door body 11] The automatic door body 11 is disposed, for example, at an opening T in a wall H so as to define an entrance / exit TA together with the wall H.

[0017] As shown in Figure 1, the automatic door main body 11 is positioned in the closed position P1 when the sensor does not detect a user approaching the opening T. The automatic door main body 11 is in the form of a sliding door that moves along the opening / closing direction B from the closed position P1 to the open position P2 on the open side B2, passing through an intermediate position P3 (see Figure 8), when a driving force is applied to the open side B2 by the automatic door driving unit 12 described below. The intermediate position P3 is a predetermined position on the movement path of the automatic door main body 11, excluding the closed position P1 and the open position P2.

[0018] In this embodiment, after the automatic door main body 11 moves from the closed position P1 to the open position P2, when a driving force is applied by the automatic door driving unit 12 on the way back to the closed position P1 on the closing side B1, the automatic door main body 11 moves again to the open position P2. The automatic door main body 11 is detected to be in the open position P2 or the closed position P1 by, for example, a proximity switch (not shown). The automatic door main body 11 is equipped with a connecting unit 110 and an assist device abutting member 111 on the upper side A1. The speed of the automatic door main body 11 may be adjusted by setting a speed setting unit (not shown) or the like.

[0019] The connecting part 110 is a substantially plate-shaped plate provided on the upper side A1 of the automatic door main body 11. In this embodiment, two connecting parts 110 are provided on the upper side A1 of the automatic door main body 11, one on the closed side B1 and one on the open side B2 of the automatic door main body 11. The connecting parts 110 transmit the driving force from the automatic door driving part 12 to the automatic door main body 11. The connecting parts 110 connect the automatic door main body 11 to a wire (described below). The connecting part 110 has a roller 113 in its center that rotates and moves on the rail 100, and suspends the automatic door main body 11 from the rail 100 via the roller 113. The roller 113 moves the automatic door main body 11 in the opening / closing direction B. There is no particular limitation on the number of connecting parts 110 and rollers 113.

[0020] The assist device abutment member 111 is provided on the upper side A1 of the connecting portion 110. The assist device abutment member 111 is connected to the automatic door main body 11 via the connecting portion 110. The assist device abutment member 111 is, for example, a rod-shaped member extending along the opening / closing direction B. The assist device abutment member 111 moves along an opening / closing trajectory along the opening / closing direction B in conjunction with the automatic door main body 11. The door assist device 2 described below abuts against an upper surface 111a of the assist device abutment member 111. It is preferable that the assist device abutment member 111 is made of a material that generates a suitable frictional force when the door assist device 2 abuts against it. Note that the assist device abutment member 111 does not have to be rod-shaped and may be formed in any shape, such as a disk, sphere, cylinder, or square prism.

[0021] [Automatic door drive unit 12] FIG. 3 is a diagram illustrating an example of the schematic configuration of the automatic door driving unit 12 of the automatic door system 1. As shown in FIG. The automatic door driving unit 12 is controlled by the automatic door control unit 14 and opens and closes the automatic door main body 11 in the opening and closing direction B. The automatic door driving unit 12 includes an expandable member 120, a wire 121, a tension applying unit 122, and a pulley 123. The automatic door driving unit 12 may be housed in the interlock 10.

[0022] 3, the first end 120a and the second end 120b of the expandable member 120 are connected to the energy supply unit 13. The expandable member 120 changes shape when supplied with electricity or heat. In this embodiment, the expandable member 120 generates heat when power is applied, and contracts toward the open side B2 of the automatic door main body 11 due to the heat generated.

[0023] The contractile force of the elastic member 120 disappears when the applied power is stopped. Here, the term "elastic member" in this specification refers to a material that has the property of reversibly changing its shape (including twisting at the molecular level) and contracting or expanding when power is supplied, and includes, for example, a monofilament (e.g., nylon) twisted into a coil, a conductive polymer, a shape-memory alloy, a carbon nanotube, a fiber with a predetermined shape, and the like. In this embodiment, the elastic member 120 is in an expanded state when the automatic door main body 11 is in the closed position P1, as shown in FIG. 3 . The energy supply unit 13 may be configured to apply a voltage between any two points on the elastic member 120.

[0024] In addition, the second end 120b of the elastic member 120 is a fixed part, and the first end 120a is connected to the wire 121, so that when the elastic member 120 contracts, the first end 120a pulls the wire 121.

[0025] One end of the wire 121 is connected to the first end 120a of the expandable member 120, and the other end is connected to the tension applying part 122. The wire 121 is attached to the automatic door main body 11 via the connecting part 110. Therefore, when the expandable member 120 contracts, the first end 120a of the expandable member 120 is pulled toward the second end 120b of the expandable member 120, and the automatic door main body 11 moves toward the open side B2.

[0026] The tension applying unit 122 is connected to the other end of the wire 121 and applies tension to the expandable member 120 and the wire 121. The tension applying unit 122 is, for example, a spring member. The tension applying unit 122 prevents slack from occurring in the expandable member 120 and the wire 121 when the expandable member 120 expands. The tension applying unit 122 also moves the automatic door main body 11 to the closing side B1 when the contraction force of the expandable member 120 is lost. The tension applying unit 122 may also be an actuator such as a power spring, a cylinder, or a motor.

[0027] The pulley 123 extends the extendable length of the telescopic member 120, and is positioned so that extending the stored length of the telescopic member 120 increases the travel distance of the automatic door main body 11. A conventionally known pulley can be used for the pulley 123. The telescopic member 120 is hung on the pulley 123 to ensure the travel distance of the automatic door main body 11. The length of the telescopic member 120 can be set appropriately based on the width of the opening T, the length of the wire 121, the length of the telescopic member 120, the contraction rate of the telescopic member 120, etc.

[0028] In this way, the automatic door driver 12 is connected to the automatic door main body 11, and changes shape using the expandable member 120 with power or heat, expanding and contracting in the opening / closing direction B. The automatic door driver 12 applies a driving force on the opening side B2 to the automatic door main body 11, moving it from the closed position P1 to the open position P2. Furthermore, when the power applied to the expandable member 120 is stopped, the automatic door driver 12 moves the automatic door main body 11 from the open position P2 to the closed position P1.

[0029] [Energy Supply Division 13] As shown in FIG. 3 , the energy supply unit 13 is connected to, for example, the first end 120a and the second end 120b of the telescopic member 120, and supplies power or heat between the first end 120a and the second end 120b. Here, applying heat to the telescopic member is a concept that includes either heating or cooling, or both. In this embodiment, the energy supply unit 13 supplies power to the telescopic member 120 by applying a voltage between the first end 120a and the second end 120b. The energy supply unit 13 also supplies power to the assist drive unit 4 of the door assist device 2, which will be described later.

[0030] [Automatic door control unit 14] The automatic door control unit 14 is configured with hardware such as a CPU, ROM, and RAM. As shown in FIG. 3, the automatic door control unit 14 is connected to the energy supply unit 13 and controls the power or heat of the energy supply unit 13. Here, controlling the power or heat means turning the power or heat (heating or cooling) on ​​and off, as well as adjusting the amount of power or heat entering or leaving the energy supply unit 13. In this embodiment, the automatic door control unit 14 controls the amount of power that the energy supply unit 13 supplies to the expandable member 120, thereby expanding or contracting the expandable member 120. In other words, the automatic door control unit 14 applies power to the expandable member 120 via the energy supply unit 13 to contract the expandable member 120, or stops the power supply to the expandable member 120 to expand the expandable member 120.

[0031] When the automatic door control unit 14 receives a signal from the conventionally known sensor described above, it supplies power to the expandable member 120 via the energy supply unit 13. In this embodiment, the automatic door control unit 14 is set to supply power until the expandable member 120 contracts and the automatic door main body 11 is positioned at the open position P2 on the open side B2 without stopping at the intermediate position P3. Furthermore, if the automatic door control unit 14 receives a signal from the sensor while the expandable member 120 is losing its contractile force and returning the automatic door main body 11 to the closed position P1 on the closed side B1, it can supply power to the expandable member 120 again to contract it.

[0032] The automatic door control unit 14 is connected to the above-mentioned proximity switch (not shown) and can acquire position information indicating whether the automatic door main body 11 is in the closed position P1 or the open position P2.

[0033] Furthermore, after the automatic door control unit 14 applies power to the expandable member 120 to cause it to contract, when it acquires information that the tip Q of the abutment portion 32 of the door opening force applying unit 3 described later has been positioned at the start position Q1, it can stop applying power to the expandable member 120 and extend it.

[0034] [Door assist device 2] Fig. 4 is an enlarged view of the door assist device 2 of the automatic door system 1, showing the tip Q of the abutment portion 32 provided on the door opening force application unit 3 at the start position Q1. Fig. 5 is an enlarged view of the door assist device 2 of the automatic door system 1, showing the tip Q of the abutment portion 32 provided on the door opening force application unit 3 at the abutment position Q3. Fig. 6 is an enlarged view of the door assist device 2 of the automatic door system 1, showing the tip Q of the abutment portion 32 provided on the door opening force application unit 3 at the completion position Q2.

[0035] The door assist device 2 is used together with the automatic door main body 11, and applies an opening force F1 to the automatic door main body 11 on the opening side B2 in the opening / closing direction B. The door assist device 2 includes a fixed plate 20, a door opening force applying unit 3, an assist drive unit 4, a biasing unit 5, and an assist control unit 6.

[0036] 4, the fixed plate 20 is a plate-like member with its back surface attached to the transom 10. The fixed plate 20 has, on its surface (attachment surface) 21 that is not attached to the transom 10, a first biasing unit holding hole 22 located on the closed side B1 from the center of the fixed plate 20, to which the biasing unit 5 described below can be attached, and two first open-side mounting holes 23 located on the open side B2 from the center of the fixed plate 20, to which the assist drive unit 4 of the assist drive unit 4 can be attached.

[0037] [Door opening force applying unit 3] The door opening force application part 3 is attached to the center of the fixed plate 20. The door opening force application part 3 is a substantially rod-shaped member having a fixed part 31 on the upper side A1, which is the base end side, and an abutting part (movable part) 32 on the lower side A2, which is the tip end side. However, the door opening force application part 3 does not have to be rod-shaped, and may be formed in any shape such as a disk, sphere, cylinder, or square prism.

[0038] The upper side A1 of the fixed portion 31 is connected to the fixed plate 20 by a fixing pin 33. In this embodiment, the fixed portion 31 is provided on the transom 10 via the fixing plate 20 by the fixing pin 33. The abutment portion 32 is connected to the lower side A2 of the fixed portion 31. The mounting location of the fixed portion 31 is not particularly limited, as long as it is fixed to the periphery of the automatic door body 11. The fixed portion 31 has a second biasing portion retaining hole 311 on the closing side B1 and two second opening side mounting holes 312 on the opening side B2, below the center, on the side A2.

[0039] The contact portion (movable portion) 32 is provided on the lower side A2 of the door-opening force applying portion 3. In this embodiment, the contact portion 32 is a spring-like, deformable elastic member. The contact portion 32 rotates (moves) on a movement trajectory along the opening / closing direction B around the fixed portion 31, pushing the automatic door main body 11 toward the opening side B2. Specifically, the tip Q of the contact portion 32 rotates on a movement trajectory K1. Here, the movement trajectory K1 along which the tip Q of the contact portion 32 rotates is a direction along the opening / closing direction B. The tip Q of the contact portion 32 rotates (moves) on the movement trajectory K1 along the opening / closing direction B from a start position Q1 to a completion position Q2, passing through a contact position Q3. Note that the entire contact portion 32 does not have to be a spring-like, deformable elastic member; it is sufficient if at least the tip Q of the contact portion 32 is a spring-like, deformable elastic member.

[0040] The contact position Q3 is a position where the movement locus K1 of the tip Q of the contact portion 32, which rotates around the fixed portion 31, intersects with the opening and closing locus of the assist device contact member 111 moving in the opening and closing direction B, and where the tip Q of the contact portion 32 abuts against the upper surface 111a of the assist device contact member 111 of the automatic door main body 11. The door opening force applying unit 3 generates a frictional force when the tip Q of the contact portion 32 rotates (moves) from the contact position Q3 to the completion position Q2 on the opening side B2. With this configuration, the tip Q of the contact portion 32 pushes the automatic door main body 11 toward the opening side B2 at the contact position Q3, applying an opening force F1 (see FIG. 9 ) to the automatic door main body 11 on the opening side B2 in the opening and closing direction B. However, the door opening force applying unit 3 is not limited to a frictional force as long as it can generate a force that applies the opening force F1 to the opening side B2 against the automatic door main body 11 during rotation.

[0041] In reality, when the contact portion 32 deforms at the contact position Q3, the tip Q of the contact portion 32 is located at a position A1 slightly above the movement locus K1. For ease of explanation, it is assumed here that the contact position Q3 is on the movement locus K1 even when the contact portion 32 deforms at the contact position Q3.

[0042] The start position Q1 is located on the movement trajectory K1 closer to the closing side B1 than the contact position Q3. The completion position Q2 is located on the movement trajectory K1 closer to the opening side B2 than the contact position Q3. When the tip Q of the contact portion 32 is located at the start position Q1 and the completion position Q2, the contact portion 32 does not interfere with the automatic door main body 11.

[0043] As shown in Figure 5, the abutment portion 32 deforms when it abuts against the upper surface 111a of the assist device abutment member 111 provided on the automatic door main body 11. When the abutment portion 32 abuts against the automatic door main body 11 at abutment position Q3, the automatic door main body 11 is at start position Q1 or intermediate position P3. When the automatic door main body 11 is located at open position P2 on the open side B2, the tip Q of the abutment portion 32 does not abut against the automatic door main body 11 at any position on the movement trajectory K1. In other words, the abutment portion 32 does not interfere with the automatic door main body 11 when the automatic door main body 11 is located at open position P2 on the open side B2.

[0044] The door opening force applying portion 3 detects, for example, by an assisting proximity switch (not shown) or the like, that the tip Q of the contact portion 32 is positioned at the start position Q1 or the completion position Q2.

[0045] [Assist drive unit 4] The assist drive unit 4 is a generally string-like elastic member that expands and contracts by changing shape in response to electric power or heat. As shown in Fig. 4, for example, a first end 4a and a second end 4b of the assist drive unit 4 are connected to an energy supplier 13. The assist drive unit 4 is connected to a fixed plate 20 and the door opening force application unit 3. When electric power is applied to the assist drive unit 4, the assist drive unit 4 generates heat and contracts due to the heat generated, causing the contact portion 32 of the door opening force application unit 3 to rotate to the opening side B2 around the fixing pin 33 of the fixing portion 31.

[0046] Specifically, the first end 4a of the assist drive unit 4 is inserted through one of the two first open-side mounting holes 23 in the fixed plate 20, and then through one of the two second open-side mounting holes 312 in the fixed part 31. The first end 4a of the assist drive unit 4 then passes through the other second open-side mounting hole 312 in the fixed part 31 and is wound around the fixed part 31. The first end 4a then passes through the other first open-side mounting hole 23 in the fixed plate 20 and is connected to the energy supply unit 13. In this state, the assist drive unit 4 changes shape and expands or contracts due to power or heat. When the assist drive unit 4 contracts, it pulls the lower side A2 of the fixed part 31, causing the contact part 32, connected to the lower side A2 of the fixed part 31, to rotate the tip Q of the contact part 32 from the start position Q1 to the end position Q2 around the fixing pin 33 of the fixed part 31. When the applied power is stopped, the assist drive unit 4 loses its contractile force and expands again. The attachment of the assist drive unit 4 to the fixed plate 20 and the fixed portion 31 is not limited to the above, and the assist drive unit 4 may be connected to the fixed plate 20 and the fixed portion 31 by hooking it onto a pin or the like.

[0047] In this embodiment, the assist drive unit 4 is in an extended state when the tip Q of the contact portion 32 provided on the door opening force applying unit 3 is at the start position Q1, as shown in Fig. 4 for example. Note that the energy supply unit 13 may be configured to apply a voltage between any two points of the assist drive unit 4.

[0048] [Energy applying unit 5] 4 to 6, one end of the urging portion 5 is connected to the first urging portion holding hole 22 of the fixed plate 20, and the other end is connected to the second urging portion holding hole 311 provided on the lower side A2 of the fixed portion 31 of the door-opening force imparting portion 3.

[0049] The biasing unit 5 prevents slack in the assist drive unit 4 when the assist drive unit 4 extends. Furthermore, the biasing unit 5 moves the door opening force applying unit 3 to the closing side B1 when the power supplied to the assist drive unit 4 is stopped and the assist drive unit 4 extends. Specifically, the biasing unit 5 rotates the tip Q of the abutment portion 32 of the door opening force applying unit 3 from the completion position Q2 to the start position Q1. The biasing unit 5 may be an actuator such as a power spring, a cylinder, or a motor.

[0050] [Assist control unit (control unit) 6] The assist control unit (control unit) 6 is configured with hardware such as a CPU, ROM, and RAM. As shown in FIG. 4, the assist control unit 6 is connected to the energy supply unit 13 and controls the power or heat of the energy supply unit 13. In this embodiment, the assist control unit 6 controls the amount of power supplied from the energy supply unit 13 to the assist drive unit 4, thereby expanding and contracting the assist drive unit 4. In other words, the assist control unit 6 applies power to and controls the assist drive unit 4 via the energy supply unit 13.

[0051] When the assist control unit 6 receives a signal from the sensor indicating that the automatic door main body 11 is moving to the opening side B2, it supplies power to the assist drive unit 4 via the energy supply unit 13. Here, the movement of the automatic door main body 11 to the opening side B2 includes not only the automatic door main body 11 moving from the closed position P1 to the opening side B2, but also the automatic door main body 11 moving from the closed position P1 to the opening position P2, and then being supplied with driving force by the automatic door drive unit 12 on its way back to the closed position P1 on the closing side B1, and moving back to the opening position P2. When power is supplied, the assist drive unit 4 rotates the tip Q of the abutment part 32 from the start position Q1 to the completion position Q2.

[0052] Furthermore, when the assist control unit 6 acquires position information indicating that the automatic door main body 11 is located at the open position P2, it stops supplying power to the assist drive unit 4 via the energy supply unit 13 and causes the assist drive unit 4 to extend. When the assist drive unit 4 extends, the biasing unit 5 applies a biasing force F2 (see FIG. 10 ) to the door opening force application unit 3 on the closing side B1, opposite the opening force F1, causing the tip Q of the abutting portion 32 to rotate from the completion position Q2 to the start position Q1. Here, the assist control unit 6 can control the automatic door control unit 14 to maintain the automatic door main body 11 in the open position P2 until the tip Q of the abutting portion 32 of the door opening force application unit 3 is located at the start position Q1 using the aforementioned assist proximity switch (not shown). When the automatic door control unit 14 acquires information indicating that the tip Q of the abutting portion 32 of the door opening force application unit 3 is located at the start position Q1, it causes the extendable member 120 to extend. Then, the tension applying section 122 of the automatic door driving section 12 moves the automatic door main body 11 from the open position P2 to the closed side B1.

[0053] The assist control unit 6 may receive a signal to move the automatic door main body 11 to the open side B2 from the automatic door control unit 14. The assist control unit 6 and the automatic door control unit 14 may also be configured as a single control device.

[0054] [Operation and function of automatic door system 1] Next, the operation and function of the automatic door system 1 will be described with reference to FIGS.

[0055] FIG. 7 shows the automatic door main body 11 of the automatic door device 1 in the closed position P1 and the tip Q of the contact portion 32 in the start position Q1. In Figure 7, the automatic door main body 11 of the automatic door device 1 is stopped in the closed position P1. At this time, the expandable member 120 of the automatic door drive unit 12 is in an extended state. Also, the door opening force applying unit 3 of the door assist device 2 is stopped with the tip Q of the abutment part 32 positioned at the start position Q1 on the movement trajectory K1. At this time, the assist drive unit 4 is in an extended state. Also, the biasing unit 5 of the door assist device 2 applies an initial biasing force F20 to the door opening force applying unit 3 toward the closing side B1. This initial biasing force F20 is weaker than the biasing force F2 (see Figure 10), which will be described later, and is of a magnitude that does not cause loosening of the assist drive unit 4 connected to the fixed part 31 of the door opening force applying unit 3.

[0056] Figure 8 shows the automatic door main body 11 of the automatic door device 1 in the intermediate position P3, and the tip Q of the abutment part 32 in the abutment position. Figure 9 shows the automatic door main body 11 of the automatic door device 1 in the open position P2, and the tip Q of the abutment part 32 in the completion position Q2.

[0057] When the automatic door control unit 14 receives a signal from the sensor, it applies power to the expandable member 120 of the automatic door drive unit 12 via the energy supply unit 13, causing it to contract. This causes the automatic door drive unit 12 to move the automatic door main body 11 from the closed position P1 to the open position P2. Furthermore, when the assist control unit 6 receives a signal from the sensor, it causes the assist drive unit 4 to contract via the energy supply unit 13. When power is applied, the assist drive unit 4 rotates the abutment portion 32 of the door opening force application unit 3 to the opening side B2 around the fixing pin 33 of the fixing portion 31.

[0058] 8, when the automatic door main body 11 is located at the intermediate position P3, the tip Q of the abutting portion 32 of the door-opening force imparting portion 3 abuts against the upper surface 111a of the assisting device abutting member 111 provided on the automatic door main body 11 at abutting position Q3 on the movement trajectory K1. At that time, the abutting portion 32 deforms at the abutting position Q3. Note that when the tip Q of the abutting portion 32 abuts against the upper surface 111a of the assisting device abutting member 111 provided on the automatic door main body 11 at the abutting position Q3, the automatic door main body 11 may be at the start position Q1.

[0059] As shown in Figures 8 and 9, when the tip Q of the abutment portion 32 rotates from the abutment position Q3 to the completion position Q2 on the opening side B2, the door opening force applying portion 3 pushes the automatic door main body 11 toward the opening side B2 with the tip Q of the abutment portion 32, and applies an opening force F1 to the automatic door main body 11 on the opening side B2 in the opening and closing direction B.

[0060] Figure 10 shows the automatic door main body 11 of the automatic door device 1 in the open position P2 and the tip Q of the abutment part 32 in the start position Q1. Figure 11 shows the automatic door main body 11 of the automatic door device 1 in the intermediate position P3 and the tip Q of the abutment part 32 in the start position Q1.

[0061] When the assist control unit 6 acquires position information indicating that the automatic door main body 11 is located at the open position P2, it stops supplying power to the assist drive unit 4 via the energy supply unit 13 and extends the assist drive unit 4. When the assist drive unit 4 extends, the biasing unit 5 applies a biasing force F2 to the door opening force application unit 3 on the closing side B1 opposite to the opening force F1, as shown in Figure 10, causing the tip Q of the abutment part 32 to rotate from the completion position Q2 to the start position Q1. Note that when the automatic door main body 11 is located at the open position P2 on the opening side B2, the tip Q of the abutment part 32 does not abut against the automatic door main body 11 at any position on the movement trajectory K1.

[0062] As shown in Fig. 10, the assist control unit 6 controls the automatic door control unit 14 to keep the automatic door main body 11 in the open position P2 until the assist proximity switch indicates that the tip Q of the abutting portion 32 of the door opening force application unit 3 is located at the start position Q1. When the automatic door control unit 14 receives information that the tip Q of the abutting portion 32 of the door opening force application unit 3 is located at the start position Q1, it extends the expandable member 120. This causes the tension application unit 122 of the automatic door drive unit 12 to move the automatic door main body 11 from the open position P2 to the closed side B1, as shown in Figs. 10 and 11.

[0063] When the automatic door control unit 14 receives a signal from the sensor while the automatic door main body 11 is returning from a state in which the power supply has been stopped to extend the extendable member 120 to the closed position P1 on the closed side B1 as shown in Figure 11, it can apply power to the extendable member 120 again to contract it. The automatic door drive unit 12 moves the automatic door main body 11 from an intermediate position P3 on the way back to the closed position P1 to the open position P2.

[0064] At this time, the door opening force applying unit 3 of the door assist device 2 is stopped with the tip Q of the contact portion 32 positioned at the start position Q1 on the movement trajectory K1. Then, when a signal is received from the sensor, the assist drive unit 4 is contracted again, and the tip Q of the contact portion 32 of the door opening force applying unit 3 is rotated from the contact position Q3 to the completion position Q2, so that the opening force F1 can be applied to the opening side B2 of the automatic door main body 11 in the opening / closing direction B.

[0065] In this embodiment, the automatic door system 1 is equipped with a door assist device 2. Therefore, even if the automatic door drive unit 12 has weak mobility, the door assist device 2 can apply an opening force F1 to the automatic door main body 11, pushing the automatic door main body 11 toward the opening side B2, allowing the automatic door main body 11 to open or close quickly. Furthermore, the automatic door system 1 can move the automatic door main body 11 in the opening / closing direction B without the need for the energy supply unit 13 to apply a strong voltage to the expandable member 120 of the automatic door drive unit 12. Therefore, there is no need to prepare a power supply source or thick cable to apply a strong voltage.

[0066] In this embodiment, the assist drive unit 4 of the door assist device 2 provided in the automatic door system 1 is an expandable member that changes shape with power or heat. This allows the opening force F1 to be applied to the automatic door main body 11 on the opening side B2 in the opening and closing direction B without the need for a motor or other device. As a result, the automatic door system 1 can be made smaller overall.

[0067] In this embodiment, the contact portion (movable portion) 32 of the door opening force applying portion 3 provided in the door assist device 2 is a deformable elastic member. Therefore, when the tip Q of the contact portion 32 contacts the upper surface 111a of the assist device contact member 111 provided in the automatic door main body 11 at contact position Q3, it can be driven quietly without making any contact noise. Furthermore, because the contact portion 32 is deformable, it can be deformed to adjust the gap (buffer) to a certain extent relative to the automatic door main body 11 without requiring high precision.

[0068] In this embodiment, the door opening force application unit 3 includes a biasing unit 5 that applies a biasing force F2 to the closing side B1 opposite to the opening force F1. Therefore, the door assist device 2 can return the door opening force application unit 3 to the original start position without using a motor or the like.

[0069] Furthermore, in this embodiment, when the automatic door main body 11 is located at the open position P2 on the open side B2, the tip Q of the abutting portion 32 does not abut against the automatic door main body 11 at any position on the movement trajectory K1. In other words, the abutting portion 32 does not interfere with the automatic door main body 11 when the automatic door main body 11 is located at the open position P2 on the open side B2. Therefore, when the automatic door main body 11 is located at the open position P2 on the open side B2, the door assist device 2 can apply the opening force F1 to the automatic door main body 11 even when the automatic door main body 11 is located at the intermediate position P3 by returning the door opening force applying unit 3 so that the tip Q of the abutting portion 32 is located at the start position Q1.

[0070] Furthermore, in this embodiment, even when the automatic door main body 11 moves from the intermediate position P3 to the open position P2, the door opening force application unit 3 of the door assist device 2 can apply the opening force F1 to the automatic door main body 11 on the open side B2 in the opening and closing direction B. Therefore, even if the contraction force of the expandable member 120 of the automatic door drive unit 12 that applies the driving force to the automatic door main body 11 is insufficient and the driving force is weak, the automatic door device 1 can apply the opening force F1 to the automatic door main body 11 by the door opening force application unit 3 of the door assist device 2, and move the automatic door main body 11 smoothly to the open position P2.

[0071] In this embodiment, when the tip Q of the abutting portion 32 is positioned at the start position Q1 and the completion position Q2, the abutting portion 32 does not interfere with the automatic door main body 11. Therefore, when the automatic door main body 11 moves from the open position P2 to the closed position P1, it can move back to the closed position P1 without interfering with the door opening force applying portion 3 of the door assist device 2.

[0072] Although one embodiment of the present invention has been described above in detail with reference to the accompanying drawings, these embodiments are presented as examples and are not intended to limit the scope of the invention. The specific configuration is not limited to this embodiment, and various omissions, substitutions, design modifications, etc. are also included within the scope of the present invention. These embodiments and their modifications are within the scope and spirit of the invention, as well as the inventions described in the claims and their equivalents. Furthermore, the components shown in the above-described embodiment and the modifications shown below can be configured in any suitable combination.

[0073] (Variation) For example, the assist drive unit of the door assist device in the above-described embodiment is not limited to an expandable member, but may use or combine other drive devices such as gears, solenoids, magnets, or motors to apply an opening force to the automatic door body.

[0074] Further, the tension applying portion and the biasing portion of the door device of the present invention may be made of an elastic member.

[0075] The automatic door system is designed to be able to open and close doors at will, allowing for easy access to the door without having to open the door at will.

[0076] The automatic door can be opened by a force of 1000 mph (1200 km / h) or 1000 mph (1200 km / h). The automatic door can be opened by a force of ...

[0077] The assist control unit of the door assist device of the present invention may also control the tip of the door opening force applying part to stop at the contact position. With this configuration, the door assist device can use the door opening force applying part as a brake or stopper in case of an abnormality in the movement of the automatic door main body in the opening / closing direction.

[0078] Furthermore, the expandable member of the automatic door drive unit of the present invention may have a plurality of energized sections.

[0079] In any of the above-described embodiments, the door assist device and automatic door system according to the present invention can drive the automatic door body to open and close more efficiently. [Industrial Applicability]

[0080] The door assist device and automatic door system according to the present invention can drive the automatic door body to open and close more efficiently, and are therefore industrially applicable. [Explanation of symbols]

[0081] 1 Automatic door device 10 No Eyes 100 rails 11 Automatic door body 110 Connection section 111 Assist device contact member 12 Automatic door drive unit 120 Elastic member 121 Wire 122 Tension applying section 123 Pulley 13 Energy Supply Department 14 Automatic door control unit 20 Fixed plate 2 Door assist device 3 Door opening force applying section 31 Fixed part 32 Contact part (movable part) 4 Assist drive unit 5. Actuation section 6 Assist control unit A Vertical direction B Opening and closing direction B1 Closed side B2 Open side F1 opening force F2 biasing force K1 movement trajectory P1 closed position P2 open position P3 intermediate position Q1 starting position Q2 Completed position Q3 Contact position

Claims

1. A door assist device used with an automatic door body that moves from the closing side to the opening side along the opening and closing direction, passing through an intermediate position, The automatic door is designed to open automatically in the direction of the arrows, and the door is then opened. an assist drive unit connected to the door opening force application unit and configured to move the door opening force application unit to the opening side in the opening / closing direction; a control unit that controls the assist drive unit to extend and contract the assist drive unit; Equipped with When the automatic door is in the intermediate position, the movable part of the door opening force applying part moves to the opening side in the opening / closing direction to push out the automatic door, thereby applying an opening force to the automatic door main body in the opening / closing direction. Door assist device.

2. the assist drive unit is an expandable member that changes shape by electricity or heat, expands and contracts, and rotates the movable unit of the door opening force applying unit to the opening side around the fixed unit, The control unit controls the assist drive unit by applying electric power or heat to the assist drive unit. The door assist device according to claim 1 .

3. At least the tip of the movable part of the door opening force applying part is a deformable elastic member. The door assist device according to claim 1 or 2.

4. The door further includes a biasing portion connected to the door opening force applying portion and applying a biasing force to the closing side opposite to the opening force. The door assist device according to claim 1 or 2.

5. The tip of the movable part rotates on a movement trajectory around the fixed part as a center, and pushes the automatic door main body toward the opening side at an abutment position where the movement trajectory intersects with an opening and closing trajectory of an assist device abutment member that is provided on the automatic door main body and moves in the opening and closing direction. The door assist device according to claim 1 or 2.

6. When the automatic door main body is placed in the open position on the open side, the tip of the movable part does not come into contact with the automatic door main body on the movement trajectory. The door assist device according to claim 5.

7. The automatic door body moves along the opening and closing direction from the closing side to the opening side, passing through an intermediate position; The automatic door driver is connected to the automatic door body and changes shape by electricity or heat to expand and contract in the opening and closing direction. The automatic door control unit controls the power or heat applied to the automatic door drive unit to open or close the automatic door main body; Used together with the automatic door body, The automatic door is designed to open automatically in the direction of the arrows, and the door is then opened. an assist drive unit connected to the door opening force application unit and configured to move the door opening force application unit to the opening side in the opening / closing direction; a control unit that controls the assist drive unit to extend and contract the assist drive unit; an automatic assist device having Equipped with When the automatic door is in the intermediate position, the movable part of the door opening force applying part moves to the opening side in the opening / closing direction to push out the automatic door, thereby applying an opening force to the automatic door main body in the opening / closing direction. Automatic door device.

8. the assist drive unit is an expandable member that changes shape by electricity or heat, expands and contracts, and rotates the movable unit of the door opening force applying unit to the opening side around the fixed unit, The control unit controls the assist drive unit by applying electric power or heat to the assist drive unit. The automatic door system according to claim 7.

9. At least the tip of the movable part of the door opening force applying part is a deformable elastic member.

9. The automatic door system according to claim 7 or 8.

10. The door further includes a biasing portion connected to the door opening force applying portion and applying a biasing force to the closing side opposite to the opening force.

9. The automatic door system according to claim 7 or 8.

11. The tip of the movable part rotates on a movement trajectory around the fixed part as a center, and pushes the automatic door main body toward the opening side at an abutment position where the movement trajectory intersects with an opening and closing trajectory of an assist device abutment member that is provided on the automatic door main body and moves in the opening and closing direction.

9. The automatic door system according to claim 7 or 8.

12. When the automatic door main body is placed in the open position on the open side, the tip of the movable part does not come into contact with the automatic door main body on the movement trajectory. The automatic door system according to claim 11.

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