JP2022134744A - automatic door device - Google Patents

Abstract

To provide a novel and improved automatic door device capable of driving the automatic door device more efficiently.SOLUTION: The automatic door device comprises: at least one door body; an opening/closing expansion member that is formed in a long shape, has one end connected to the door body and the other end fixed on an outside of the door body, and contracts in an opening direction of the door body by energization; a power supply part that supplies electrical power to the opening/closing expansion member; and a control part that controls the electrical power supplied to the opening/closing expansion member from the power supply part. The opening/closing expansion member is divided into a plurality of energization sections along a longitudinal direction.SELECTED DRAWING: Figure 1

Description

The present invention relates to an automatic door system.

As is well known, for example, a door body is provided in an opening formed in a wall of a building or the like, and when a user is detected by a sensor provided near the opening, the door body automatically slides. An automatic door system is widely used that allows a user to pass through efficiently by opening and closing the door (see, for example, Patent Document 1).

Such an automatic door apparatus described in Patent Document 1 generally has a motor arranged in a drive section, and the opening is opened and closed by moving the door body by means of the motor.

JP 2006-197750 A Japanese Patent Application Laid-Open No. 2016-199900

However, when such a motor is used in a door apparatus, when the door body is opened and closed, driving noise is generated as the motor is rotationally driven, so there is a limit to the quiet operation of the automatic door apparatus. rice field.
In addition, as the size of the door body increases, it is necessary to increase the output of the motor.

In order to solve these problems, the present inventors have invented an automatic door system using a stretchable member (sometimes referred to as artificial muscle) that contracts when energized (Patent Document 2). This expandable member has the characteristic that it heats and contracts when energized, and the contractile force disappears when the energization is stopped.

However, this technique has a problem that a large amount of electric power is required to contract the elastic member because the elastic member to be energized is very long. Therefore, a large power supply is required. Furthermore, since the elastic member has a property of contracting due to heat generation, if the elastic member is very long, it takes a long time to generate heat. In other words, there is also the problem that the contraction response takes a long time and the control of the contraction response becomes difficult.

SUMMARY OF THE INVENTION Accordingly, it is an object of the present invention to provide a new and improved automatic door system capable of driving the automatic door system more efficiently. to do.

In order to solve the above problems, according to one aspect of the present invention, at least one door body and an elongated door body, one end of which is connected to the door body, and the other end of which is fixed to the outside of the door body, are energized. an opening/closing expansion/contraction member that contracts in the opening direction of the door body by means of a power supply unit that supplies electric power to the opening/closing expansion/contraction member; and a control unit that controls the power supplied from the power supply unit to the opening/closing expansion/contraction member. An automatic door apparatus is provided, wherein the opening and closing expansion and contraction member is divided into a plurality of energized sections along the longitudinal direction.

Here, the current-carrying cross-sectional area of the current-carrying section connected to the door body may be larger than the current-carrying cross-sectional area of the other current-carrying sections.

In addition, it is formed shorter than the expansion and contraction member for opening and closing, one end is connected to the door body and the other end is fixed to the outside of the door body. A telescopic member for acceleration may be further provided, and the power supply unit may supply power to the telescopic member for acceleration when starting the door body.

Further, the conducting cross-sectional area of the expanding and contracting member for acceleration may be larger than the conducting cross-sectional area of the expanding and contracting member for opening and closing.

According to another aspect of the present invention, at least one door body and a long door body, one end of which is connected to the door body and the other end of which is fixed to the outside of the door body, are energized to open the door body. An opening/closing expansion/contraction member that contracts and is formed to be shorter than the opening/closing expansion/contraction member, one end of which is connected to the door body, the other end of which is fixed to the outside of the door body, and which contracts in the opening direction of the door body when energized, and one end of which is shortened. Controls the expansion/contraction member for acceleration that separates from the door body, the power supply section that supplies power to the expansion/contraction member for opening/closing and the expansion/contraction member for acceleration, and the power supplied from the power supply section to the expansion/contraction member for opening/closing and the expansion/contraction member for acceleration. and a control unit for performing the automatic door operation, wherein the electric power supply unit supplies electric power to the expansion/contraction member for acceleration when starting the door body.

Here, the current-carrying cross-sectional area of the accelerating elastic member may be larger than the current-carrying cross-sectional area of the opening/closing elastic member.

According to the aspect of the present invention, it is possible to drive the automatic door system more efficiently.

1 is a front view showing the configuration of an automatic door system according to a first embodiment of the present invention; FIG. FIG. 4 is a front view showing the state of the automatic door device in a fully open state; FIG. 6 is a front view showing the configuration of an automatic door system according to a second embodiment of the present invention; It is a top view which shows a motion of the expansion-contraction member which concerns on 1st Embodiment. FIG. 11 is a plan view showing the movement of the expandable member according to the second embodiment; It is a top view which shows a motion of the expansion-contraction member which concerns on 3rd Embodiment. It is a top view which shows a motion of the expansion-contraction member which concerns on 4th Embodiment. It is a graph which shows an example of energization control. It is a graph which shows an example of energization control.

Preferred embodiments of the present invention will be described in detail below with reference to the accompanying drawings. It should be noted that the numerical limitation range represented using "-" means a range including the numerical values described before and after "-" as lower and upper limits. Any numerical value indicated as "greater than" or "less than" is not included in the numerical range.

<1. First Embodiment>
(1-1. Overall Configuration of Automatic Door Device)
First, based on FIG.1 and FIG.2, the whole structure of the automatic door apparatus 1 which concerns on the 1st Embodiment of this invention is demonstrated. FIG. 1 shows the automatic door system 1 in a fully closed state, and FIG. 2 shows the automatic door system 1 in a fully open state. The automatic door apparatus 1 includes a door body 10 , a rail 20 , an opening/closing member 30 , a power supply cable 40 , electrodes 41 to 45 , an actuator unit 50 and a stopper 60 .

The door body 10 includes a door panel 11 , plates 12 and 13 and rollers 14 and 15 . The door panel 11 is a panel that opens and closes an opening 300 (see FIG. 2) by moving in an opening direction (direction of arrow 100) or a closing direction (direction opposite to arrow 100). The opening/closing operation of the door panel 11 is performed by expanding/contracting an opening/closing expansion/contraction member 30, which will be described later.

Plates 12 and 13 are attached to the upper edge of door panel 11 . Rollers 14,15 are rotatably mounted on plates 12,13. Rollers 14 , 15 move on rails 20 . As a result, the door panel 11 is opened and closed.

The opening/closing expansion/contraction member 30 is a member that generates heat when energized and contracts in the opening direction (arrow 100 direction) of the door body 10 due to the generated heat. The contractile force (torque) of the opening/closing expansion/contraction member 30 disappears when the energization is stopped. Here, the term “stretchable member” as used in this specification refers to an object that has the property of contracting or expanding by reversibly changing its shape (including twisting at the molecular level) when electric power is supplied. Examples include monofilaments twisted into a coil (eg nylon 6), conductive polymers, shape memory alloys, carbon nanotubes, fibers with a given morphology, and the like.

One end of the opening/closing expansion/contraction member 30 is connected to the door body 10 , more specifically to the plate 12 . The other end of the opening/closing elastic member 30 is connected to the electrode 45 fixed to the fixed end 200 . Here, the fixed end 200 is a fixed member positioned above the opening-direction-side end of the door body 10 in the fully opened state. Further, the opening/closing expansion/contraction member 30 is divided into four conducting sections 31-34 by the electrodes 41-45. The energization sections 31 to 34 can be energized independently. Of course, the number of energized sections is not limited to this example (four), and may be more or less than four. The conducting section 31 is connected to the door body 10 , more specifically the plate 12 , and the conducting section 34 is fixed to the fixed end 200 . The energized sections 31 to 34 contract in the opening direction (arrow 100 direction) of the door body 10 when energized.

The power supply cable 40 is connected to each of the electrodes 41 to 45, and supplies power supplied from a power supply section, which will be described later, to the opening/closing expansion/contraction member 30 via each of the electrodes 41 to 45. As shown in FIG. Here, as described above, it is possible to energize the energization sections 31 to 34 independently. Electrode 41 is provided on plate 12, electrode 45 is provided on fixed end 200, and electrodes 42-44 are provided between electrodes 41 and 45 at regular intervals. Of course, the positions of the electrodes are not limited to this example, and the number of energized sections is not limited to four as described above.

The actuator unit 50 incorporates a power supply section, a control section, and a spiral spring. The power supply unit supplies (energizes) power to the energization sections 31 to 34 via the power supply cable 40 and the electrodes 41 to 45 . The control unit controls the operation of the power supply unit. Note that the control unit is configured by a hardware configuration such as a CPU, ROM, and RAM. A spring cable 51 extends from the spiral spring and is connected to the plate 12 of the door body 10 . The spiral spring urges the plate 12, that is, the door body 10, in the closing direction, and moves the door body 10 in the closing direction when the opening/closing expansion/contraction member 30 loses its contractive force.

The stopper 60 is a member that comes into contact with the left end of the electrode 42 when the door body 10 is in the fully closed state (state shown in FIG. 1). The stopper 60 is a member that prevents the electrode 42 from moving further to the left (close direction) from the fully closed position. Although the details will be described later, for example, when moving the door body 10 in the opening direction from the fully closed state, first, the energization section 31 is energized. As a result, the energized section 31 contracts, and the energized sections 32 to 34 are pulled by the energized section 31 at this time. If the energized sections 32 to 34 are stretched, the contractile force of the energized section 31 is reduced. A stopper 60 is provided to prevent such reduction in contraction force. In other words, by providing the stopper 60, the energization sections 32 to 34 are prevented from extending while the energization section 31 is being energized. The stoppers 60 may also be provided for the electrodes 43 and 44 as well. The stopper 60 does not prevent the electrode 41, the plate 12, and the like from moving in the opening direction.

(1-2. Operation of automatic door device)
Next, the operation of the automatic door system 1 will be described with reference to FIGS. 1, 2, 4 and 8. FIG. Here, FIG. 4(a) shows the state of the opening/closing expansion member 30 when the automatic door apparatus 1 is in the fully closed state, and FIG. 4(b) shows the automatic door apparatus 1 in the fully open state. 3 shows the state of the opening/closing expansion/contraction member 30 at that time. Reference numerals A to D in FIG. 8 indicate energization sections 31 to 34, and numerals 1 to 6 indicate time sections. The vertical axes of the graphs L1 to L4 indicate the amount of energization. That is, the larger the value on the vertical axis of the graphs L1 to L4, the larger the amount of energization.

First, the operation when the automatic door apparatus 1 changes from the fully closed state (FIGS. 1 and 4A) to the fully open state (FIGS. 2 and 4B) will be described. For example, when a sensor (not shown) detects a user, the control unit first energizes the energization section 31 (time section 1 in FIG. 8). As a result, the energized section 31 contracts in the opening direction of the door body 10 , and the door body 10 moves in the opening direction by the contraction of the energized section 31 . That is, the automatic door system 1 is activated.

It should be noted that the specific amount of energization may be appropriately adjusted according to the properties of the opening/closing expansion/contraction member 30, the weight of the door body 10, and the like. Here, the amount of energization required for contraction of the energized section 31 is smaller than the amount of energization required for contracting the entire opening/closing extensible member 30 . Furthermore, since the time required for heat generation in the energized section 31 is also shortened, the contraction response is quickened and control of the contraction response is facilitated. Furthermore, since the movement of the electrode 42 in the closing direction is suppressed by the stopper 60, the contraction of the energized section 31 does not extend the energized sections 32-34. This prevents the shrinkage force of the energized section 31 from decreasing. As shown in FIG. 8, other energization sections 32 to 34 may be energized to the extent that the current state can be maintained. In this case, the stoppers 60 for the electrodes 43 and 44 are unnecessary. Further, in the time interval 1, the stationary automatic door system 1 is activated, so a larger contractile force is required than in the other time intervals. Also, it is preferable to start the automatic door system 1 as soon as possible. Therefore, in this time section 1, the energization section 31 may be energized with a larger current than the energization amount applied to the other energization sections in other time sections. In this case, since the contractile force of the energized section 31 is increased, the automatic door system 1 can be started early. Also, the effect of the stopper 60 is enhanced.

Next, the control unit energizes the energization section 32 (time section 2 in FIG. 8). As a result, the energized section 32 contracts in the opening direction of the door body 10 . Here, the amount of energization required for contraction of the energized section 32 is smaller than the amount of energization required for contracting the entire opening/closing extensible member 30 . The controller energizes the energized section 31 to such an extent that the current state can be maintained. Other energized sections 33 and 34 may be energized to the extent that the current state can be maintained. As a result, the door body 10 moves further in the opening direction by the contraction of the energized section 32 .

Next, the control unit energizes the energization section 33 (time section 3 in FIG. 8). As a result, the energized section 33 contracts in the opening direction of the door body 10 . Here, the amount of energization required for contraction of the energized section 33 is smaller than the amount of energization required for contracting the entire opening/closing extensible member 30 . The controller energizes the energized sections 31 and 32 to such an extent that the current state can be maintained. Other energized sections 34 may be energized to the extent that the current state can be maintained. As a result, the door body 10 moves further in the opening direction by the contraction of the energized section 33 .

Next, the control unit energizes the energization section 34 (time section 4 in FIG. 8). As a result, the energized section 34 contracts in the opening direction of the door body 10 . Here, the amount of energization required for contraction of the energized section 34 is smaller than the amount of energization required for contracting the entire opening/closing extensible member 30 . The controller energizes the energized sections 31 to 33 to such an extent that the current state can be maintained. As a result, the door body 10 moves further in the opening direction by the contraction of the energized section 34 . Through the above steps, the automatic door device 1 is fully opened as shown in FIGS. 2 and 4(b). In the time section 5, the control unit energizes all the energized sections 31 to 34 to the extent that the current state (that is, the fully open state) can be maintained. When the user disappears (passes through the automatic door device 1), the controller stops energizing the energizing sections 31 to 34 (time section 6). As a result, the contractile force of the energized sections 31 to 34 disappears, so that the automatic door apparatus 1 returns to the fully closed state by the spiral spring. When the user is detected again when the automatic door system 1 returns to the fully closed state, the operation from the above-described time segment 1 may be performed again.

In order to perform the opening operation of the automatic door apparatus 1 more smoothly, the energization may be switched gradually as shown in the graphs L1' to L4' in FIG.

As described above, according to the first embodiment, the opening/closing expansion/contraction member 30 is divided into a plurality of energized sections 31 to 34, so that the amount of energization required to contract each energized section 31 to 34 can be reduced. can do. Furthermore, since the time required for heat generation in the energized sections 31 to 34 is shortened, the contraction response is quickened and control of the contraction response is facilitated. Therefore, the automatic door system 1 can be driven more efficiently.

<2. Second Embodiment>
(2-1. Overall configuration of automatic door device)
Next, based on FIG.3 and FIG.5, the whole structure of the automatic door apparatus 1 based on 2nd Embodiment of this invention is demonstrated. A description of the configuration common to the first embodiment will be omitted.

As described above, when starting the automatic door system 1, a large contraction force is required, and it is necessary to start as soon as possible. Therefore, in the second embodiment, the current-carrying cross-sectional area of the current-carrying section 31 connected to the door body 10 is made larger than the current-carrying cross-sectional area of the other current-carrying sections 32 .

More specifically, the opening/closing expansion/contraction member 30 is divided into energization sections 31-32 by electrodes 41-43. Electrode 41 is provided on plate 12 , electrode 43 is provided on fixed end 200 , and electrode 42 is provided between electrodes 41 and 43 .

The conducting section 31 is connected to the door body 10 , more specifically the plate 12 , and is shorter than the conducting section 32 . Furthermore, the current-carrying cross-sectional area of the current-carrying section 31 (more specifically, the cross-sectional area perpendicular to the length direction) is larger than that of the current-carrying section 32 . Specifically, as shown in FIG. 5, the energized section 31 is composed of a plurality of short elastic members 31a. As a result, the current-carrying cross-sectional area of the current-carrying section 31 is increased. It should be noted that the energized cross-sectional area may be increased by thickening the opening/closing expansion/contraction member 30 that constitutes the energized section 31 .

As described above, in the second embodiment, the current-carrying cross-sectional area of the current-carrying section 31 connected to the door body 10 is made larger than the current-carrying cross-sectional area of the other current-carrying section 32. A large current can be passed through the energization section 31 at startup. Furthermore, the energized section 31 is shorter than the energized section 32 . Therefore, a large contractile force can be generated in the energized section 31 at an early stage, so that the automatic door system 1 can be started at an early stage. The length ratio between the energized section 31 and the energized section 32 may be appropriately adjusted according to the characteristics required for the automatic door apparatus 1. For example, the energized section 31 is 1/10 to 1 of the energized section 32. /20 may be sufficient.

A stopper 60 is provided as in the first embodiment. The stopper 60 is a member that comes into contact with the left end of the electrode 42 when the door body 10 is in the fully closed state (state shown in FIG. 1). The stopper 60 prevents the energized section 32 from extending when the energized section 31 is contracted. In particular, in the second embodiment, since a large contractile force is generated in the energized section 31, the effect of the stopper 60 is great.

(2-2. Operation of automatic door device)
Next, the operation of the automatic door system 1 will be described with reference to FIGS. 3 and 5. FIG. Here, FIG. 5(a) shows the state of the opening/closing expansion member 30 when the automatic door apparatus 1 is in the fully closed state, and FIG. 5(b) shows the automatic door apparatus 1 in the fully open state. 3 shows the state of the opening/closing expansion/contraction member 30 at that time.

First, the operation when the automatic door apparatus 1 changes from the fully closed state (FIGS. 3 and 5A) to the fully open state (FIG. 5B) will be described. For example, when a sensor (not shown) detects a user, the control unit first energizes the energization section 31 . As a result, the energized section 31 contracts in the opening direction of the door body 10 , and the door body 10 moves in the opening direction by the contraction of the energized section 31 . That is, the automatic door system 1 is activated.

Here, the controller can apply current to the energized section 31 that is larger than the amount of energization applied to the energized section 31 in the first embodiment. Also, the energized section 31 is shorter than the energized section 32 . Therefore, a large contractile force can be generated in the energized section 31 at an early stage, and the automatic door system 1 can be started at an early stage. It should be noted that the specific amount of energization may be appropriately adjusted according to the properties of the opening/closing expansion/contraction member 30, the weight of the door body 10, and the like.

Here, since movement of the electrode 42 in the closing direction is suppressed by the stopper 60 , the contraction of the energized section 31 does not cause the energized section 32 to extend. This prevents the shrinkage force of the energized section 31 from decreasing. Note that the energized section 32 may be energized to the extent that the current state can be maintained.

Next, the controller energizes the energized section 32 . As a result, the energized section 32 contracts in the opening direction of the door body 10 . The controller energizes the energized section 31 to such an extent that the current state can be maintained. As a result, the door body 10 moves further in the opening direction by the contraction of the energized section 32 . Through the above steps, the automatic door device 1 is fully opened as shown in FIG. 5(b). The controller energizes the fully energized sections 31 to 32 to the extent that the fully open state can be maintained. Note that the energization of the energized section 31 may be stopped. In this case, since the energized section 31 is extended by the biasing force of the spiral spring, the reversing operation is performed early. Specifically, when the user leaves (passes through the automatic door device 1), the controller stops energizing the energizing section 32. FIG. As a result, the contractile force of the energized section 32 disappears, so that the automatic door system 1 is returned to the fully closed state by the spiral spring. Here, when the user is detected again when the automatic door device 1 returns to the fully closed state, the energization section 31 is energized again. At this time, since the energized section 31 is in an extended state, the reversing operation (reopening operation) is performed early.

As described above, according to the second embodiment, a larger contractile force can be generated when the automatic door system 1 is activated, so that the automatic door system 1 can be activated early and the automatic door system can be operated at an early stage. The retraction force required for the entire opening motion of 1 can also be reduced. Therefore, the automatic door system 1 can be driven more efficiently.

<3. Third Embodiment>
(3-1. Overall Configuration of Automatic Door Device)
Next, based on FIG.1 and FIG.6, the whole structure of the automatic door apparatus 1 based on 3rd Embodiment of this invention is demonstrated. The automatic door apparatus 1 according to the third embodiment replaces the opening/closing expansion member 30 of the automatic door apparatus 1 according to the first embodiment with an opening/closing expansion member 30 and an acceleration expansion member 80 shown in FIG. is. A description of the configuration common to the first embodiment will be omitted.

As described above, when starting the automatic door system 1, a large contraction force is required, and it is necessary to start as soon as possible. Therefore, in the third embodiment, so-called catapult activation is performed.

More specifically, an electrode 41 is provided on the plate 12 and an electrode 42 is provided on the fixed end 200 . The opening/closing expansion/contraction member 30 connects between the electrodes 41 and 42 . Separately from such an opening/closing expansion member 30, electrodes 91 and 92 and an acceleration expansion member 80 are provided. The electrode 91 is in contact with the plate 12 (the end on the closing direction side) when the automatic door apparatus 1 is in the fully closed state. The electrode 92 is fixed somewhere on the top of the door body 10 . The acceleration elastic member 80 connects between the electrodes 91 and 92 . The length of the expansion/contraction member 80 for acceleration is shorter than that of the expansion/contraction member 30 for opening/closing. Also, since the electrode 91 is in contact with the plate 12 , one end of the acceleration expansion/contraction member 80 is in contact with (connected to) the door body 10 . Here, it is preferable that the current-carrying cross-sectional area of the accelerating elastic member 80 is larger than the current-carrying cross-sectional area of the opening/closing elastic member 30 . In this case, a larger contractile force can be generated in the accelerating elastic member 80 . In the example of FIG. 6, the acceleration expansion/contraction member 80 is composed of a plurality of short expansion/contraction members 80a. As a result, the current-carrying cross-sectional area of the acceleration expansion/contraction member 80 is increased.

(3-2. Operation of automatic door device)
Next, the operation of the automatic door system 1 will be described with reference to FIG. Here, FIG. 6(a) shows the state of the opening/closing expansion member 30 and the like when the automatic door device 1 is in the fully closed state, and FIG. 6(b) shows the state in which the automatic door device 1 is in the fully open state. 3 shows the state of the opening/closing expansion/contraction member 30, etc.

First, the operation when the automatic door apparatus 1 changes from the fully closed state (FIG. 6(a)) to the fully opened state (FIG. 6(b)) will be described. For example, when a sensor (not shown) detects a user, the control unit first energizes the acceleration extensible member 80 . As a result, the acceleration expansion/contraction member 80 contracts in the opening direction of the door body 10 . As a result, the electrode 91 pushes the door body 10, more specifically the plate 12, in the opening direction. After the accelerating telescopic member 80 is completely contracted, the electrode 91 (that is, the accelerating telescopic member 80) is detached from the plate 12. FIG.

Here, when the current-carrying cross-sectional area of the accelerating elastic member 80 is larger than the current-carrying cross-sectional area of the opening/closing elastic member 30, the controller accelerates a current larger than the current applied to the current-carrying section 31 in the first embodiment. The telescopic member 80 can be energized. Further, the acceleration expansion/contraction member 80 is shorter than the opening/closing expansion/contraction member 30 . As a result, a large contractile force can be generated early on the acceleration elastic member 80, and the automatic door apparatus 1 can be started early. It should be noted that the specific amount of energization may be appropriately adjusted according to the characteristics of the acceleration elastic member 80, the weight of the door body 10, and the like.

Next, the controller energizes the opening/closing expansion/contraction member 30 . As a result, the opening/closing expansion/contraction member 30 contracts in the opening direction of the door body 10 . Here, since the door body 10 is urged in the opening direction, it is possible to reduce the amount of electricity supplied to the opening/closing expansion/contraction member 30 . Through the above steps, the automatic door device 1 is fully opened as shown in FIG. 6(b). The controller energizes the opening/closing expansion/contraction member 30 to such an extent that the fully opened state can be maintained. When the user leaves (passes through the automatic door apparatus 1), the controller stops energizing the opening/closing expansion/contraction member 30. FIG. As a result, the contractile force of the opening/closing expansion/contraction member 30 disappears, so that the automatic door apparatus 1 returns to the fully closed state due to the spiral spring. When the user is detected again when the automatic door apparatus 1 returns to the fully closed state, the opening/closing expansion/contraction member 30 may be energized again.

As described above, according to the third embodiment, a larger contractile force can be generated when the automatic door system 1 is activated, so that the automatic door system 1 can be activated early and the automatic door system can be operated at an early stage. The retraction force required for the entire opening motion of 1 can also be reduced. In addition, the structure of the expandable members (and wiring connected to them) that opens and closes together with the door body 10 can be simplified. Therefore, the automatic door system 1 can be driven more efficiently.

<4. Fourth Embodiment>
(4-1. Overall Configuration of Automatic Door Device)
Next, based on FIG.1 and FIG.7, the whole structure of the automatic door apparatus 1 which concerns on the 4th Embodiment of this invention is demonstrated. The automatic door apparatus 1 according to the fourth embodiment replaces the opening/closing expansion member 30 of the automatic door apparatus 1 according to the first embodiment with an opening/closing expansion member 30 and an acceleration expansion member 80 shown in FIG. is. A description of the configuration common to the first embodiment will be omitted.

As shown in FIG. 7, the fourth embodiment is a combination of the first to third embodiments described above. More specifically, one end of the opening/closing elastic member 30 is connected to the door body 10 , more specifically to the plate 12 . The other end of the opening/closing elastic member 30 is connected to the electrode 46 fixed to the fixed end 200 . Further, the opening/closing expansion/contraction member 30 is divided into five conducting sections 31-35 by the electrodes 41-46. The energization sections 31 to 35 can be energized independently. Of course, the number of energized sections is not limited to this example (five), and may be more or less than five. The conducting section 31 is connected to the door body 10 , more specifically the plate 12 , and the conducting section 35 is fixed to the fixed end 200 . The energized sections 31 to 35 contract in the opening direction (arrow 100 direction) of the door body 10 when energized.

The current-carrying cross-sectional area of the current-carrying section 31 is larger than that of the other current-carrying sections 32-35. Specifically, as shown in FIG. 7, the energized section 31 is composed of a plurality of short elastic members 31a. As a result, the current-carrying cross-sectional area of the current-carrying section 31 is increased. It should be noted that the energized cross-sectional area may be increased by thickening the opening/closing expansion/contraction member 30 that constitutes the energized section 31 .

Separately from such an opening/closing expansion member 30, electrodes 91 and 92 and an acceleration expansion member 80 are provided. The electrode 91 is in contact with the plate 12 (the end on the closing direction side) when the automatic door apparatus 1 is in the fully closed state. The electrode 92 is fixed somewhere on the top of the door body 10 . The acceleration elastic member 80 connects between the electrodes 91 and 92 . The length of the expansion/contraction member 80 for acceleration is shorter than that of the expansion/contraction member 30 for opening/closing. Also, since the electrode 91 is in contact with the plate 12 , one end of the acceleration expansion/contraction member 80 is in contact with (connected to) the door body 10 . Here, it is preferable that the current-carrying cross-sectional area of the accelerating elastic member 80 is larger than the current-carrying cross-sectional area of the opening/closing elastic member 30 . In this case, a larger contractile force can be generated in the accelerating elastic member 80 . In the example of FIG. 7, the acceleration expansion/contraction member 80 is composed of a plurality of short expansion/contraction members 80a. As a result, the current-carrying cross-sectional area of the acceleration expansion/contraction member 80 is increased.

(4-2. Operation of automatic door device)
Next, the operation of the automatic door system 1 will be described with reference to FIG. Here, FIG. 7A shows the state of the opening/closing expansion member 30 and the like when the automatic door device 1 is in the fully closed state, and FIG. 7B shows the state in which the automatic door device 1 is in the fully open state. 3 shows the state of the opening/closing expansion/contraction member 30, etc.

First, the operation when the automatic door apparatus 1 changes from the fully closed state (FIG. 7(a)) to the fully open state (FIG. 7(b)) will be described. For example, when a sensor (not shown) detects a user, the control unit first energizes the acceleration extensible member 80 . As a result, the acceleration expansion/contraction member 80 contracts in the opening direction of the door body 10 . As a result, the electrode 91 pushes the door body 10, more specifically the plate 12, in the opening direction. After the accelerating telescopic member 80 is completely contracted, the electrode 91 (that is, the accelerating telescopic member 80) is detached from the plate 12. FIG.

Here, when the current-carrying cross-sectional area of the accelerating elastic member 80 is larger than the current-carrying cross-sectional area of the opening/closing elastic member 30, the controller accelerates a current larger than the current applied to the current-carrying section 31 in the first embodiment. The telescopic member 80 can be energized. Further, the acceleration expansion/contraction member 80 is shorter than the opening/closing expansion/contraction member 30 . As a result, a large contractile force can be generated early on the acceleration elastic member 80, and the automatic door apparatus 1 can be started early. It should be noted that the specific amount of energization may be appropriately adjusted according to the characteristics of the acceleration elastic member 80, the weight of the door body 10, and the like.

In parallel with this, the control unit energizes the energization section 31 . As a result, the energized section 31 contracts in the opening direction of the door body 10 , and the door body 10 moves in the opening direction by the contraction of the energized section 31 .

Here, the controller can apply current to the energized section 31 that is larger than the amount of energization applied to the energized section 31 in the first embodiment. Also, the energized section 31 is shorter than the energized section 32 in the second embodiment. Therefore, a large contractile force can be generated in the current-carrying section 31 at an early stage, and the automatic door apparatus 1 can be started at an early stage in combination with the operation of the expansion/contraction member 80 for acceleration. It should be noted that the specific amount of energization may be appropriately adjusted according to the properties of the opening/closing expansion/contraction member 30, the weight of the door body 10, and the like.

The subsequent operation is as described in the first embodiment. Since the door body 10 is urged in the opening direction, the amount of energization in each of the energization sections 32-35 can be reduced.

As described above, according to the fourth embodiment, the synergistic effect of the above-described first to third embodiments makes it possible to drive the automatic door system 1 more efficiently.

Although the preferred embodiments of the present invention have been described in detail above with reference to the accompanying drawings, the present invention is not limited to such examples. It is obvious that a person having ordinary knowledge in the technical field to which the present invention belongs can conceive of various modifications or modifications within the scope of the technical idea described in the claims. It is understood that these also naturally belong to the technical scope of the present invention. For example, an elastic member may be used instead of the spiral spring. Alternatively, the rail 20 may be inclined in the closing direction. In this case, the door panel 11 is biased in the closing direction, so the spiral spring may not necessarily be provided.

1 Automatic Door Device 10 Door Body 11 Door Panels 12, 13 Plates 14, 15 Roller 20 Rail 30 Expandable Members for Opening and Closing 31 to 35 Energized Sections 41 to 46, 91, 92 Electrode 80 Expandable Member for Acceleration

Claims (6)

at least one door body;
an opening/closing expansion/contraction member having an elongated shape, one end of which is connected to the door body, the other end of which is fixed to the outside of the door body, and which contracts in the opening direction of the door body when energized;
a power supply unit that supplies power to the opening/closing expansion/contraction member;
a control unit that controls power supplied from the power supply unit to the opening/closing expansion/contraction member;
An automatic door apparatus, wherein the opening/closing expansion/contraction member is divided into a plurality of energized sections along the longitudinal direction. 2. The automatic door apparatus according to claim 1, wherein the current-carrying cross-sectional area of the current-carrying section connected to the door body is larger than the current-carrying cross-sectional area of the other current-carrying sections. One end is connected to the door body, the other end is fixed to the outside of the door body, and when energized, it contracts in the opening direction of the door body, and the one end extends to the door body. further comprising an acceleration telescopic member that detaches from the
3. The automatic door apparatus according to claim 1, wherein the electric power supply unit supplies electric power to the expansion/contraction member for acceleration when starting the door body. 4. The automatic door apparatus according to claim 3, wherein the current-carrying cross-sectional area of the accelerating expansion/contraction member is larger than the current-carrying cross-sectional area of the opening/closing expansion/contraction member. at least one door body;
an opening/closing expansion/contraction member having an elongated shape, one end of which is connected to the door body, the other end of which is fixed to the outside of the door body, and which contracts in the opening direction of the door body when energized;
One end is connected to the door body, the other end is fixed to the outside of the door body, and when energized, it contracts in the opening direction of the door body, and the one end extends to the door body. an acceleration telescopic member that departs from the
a power supply unit that supplies power to the opening/closing extensible member and the acceleration extensible member;
a control unit that controls power supplied from the power supply unit to the opening/closing expansion member and the acceleration expansion member;
The automatic door apparatus, wherein the electric power supply unit supplies electric power to the expansion/contraction member for acceleration when starting the door body. 6. The automatic door apparatus according to claim 5, wherein the current-carrying cross-sectional area of the accelerating expansion/contraction member is larger than the current-carrying cross-sectional area of the opening/closing expansion/contraction member.

Images