Rice milling equipment

Abstract

To prevent a third person from unexpectedly opening / closing a door during used of a rice milling facility by a user and making the user easy to enter a passenger room at while carrying an unpolished rice bag or the like with both hands.SOLUTION: A rice milling facility partitioning a building 1 into a machine room 3 and a passenger room 4 by a partition wall 2 comprises: an entrance door 20 which is arranged at doorway of the passenger room 4 to be automatically opened and closed; and a switch button 32 operation of which activates an entrance open switch 31 to output an entrance door open signal in which the switch button 32 is, when it is operated from outside of the building 1, slid and retreated to the passenger room 4 side.SELECTED DRAWING: Figure 6

Description

[Technical Field]

[0001] The present invention relates to rice milling equipment that mills rice by paying a fee. [Background technology]

[0002] Rice milling equipment is known that has a guest room door at the front of the building for users to enter and exit the guest room, which can be opened and closed manually by the user (Patent Document 1).

[0003] In addition, there is known a rice milling facility in which the guest room entrance is an automatic door and an entrance fee slot using a coin slot, card reader, or the like is provided near the guest room entrance to open the door. This prevents the guest room entrance door from opening unless the entrance fee is paid at the entrance fee slot, thereby cutting out unnecessary visitors and preventing vandalism and theft (Patent Document 2). [Prior art documents] [Patent documents]

[0004] [Patent Document 1] Japanese Patent Application Laid-Open No. 2017-113708 [Patent Document 2] Japanese Patent Application Laid-Open No. 2009-50832 Summary of the Invention [Problem to be solved by the invention]

[0005] In particular, in the case of an automatic door that can be opened and closed automatically when an entrance fee is paid, as in Patent Document 2, third parties cannot enter, which has the effect of preventing vandalism and theft.

[0006] However, when a user tries to use the rice milling equipment, the door opens if a third party tries to do the same thing, causing discomfort to the user. Furthermore, when entering the building, the user must carry a bag of brown rice containing more than 10 kg in both hands, then put the bag on the ground, open the door, and then lift the bag up again to enter the room, which is a burden and a hassle as it requires lifting and lowering heavy luggage.

[0007] To prevent a door from being accidentally opened or closed by a third party, and to facilitate entry and exit from a passenger compartment while holding a bag of brown rice or the like with both hands. [Means for solving the problem]

[0008] In order to solve this problem, The first invention is a rice milling equipment having a structure in which a building (1) is divided into a machine room (3) and a passenger room (4) by a partition wall (2), and an entrance door (20) that opens and closes automatically is provided at the entrance to the passenger room (4), and an entrance door open switch (31) is activated by operating a switch button (32) to output an entrance door open signal, and when the switch button (32) is operated from outside the building (1), it slides to the passenger room (4) side and retreats. This rice milling equipment is configured to output a command signal to close the entrance and exit doors after the fee is deposited. The second invention is a rice milling equipment having a structure in which a building (1) is divided into a machine room (3) and a passenger room (4) by a partition wall (2), and an entrance door (20) that opens and closes automatically is provided at the entrance of the passenger room (4), and an entrance door open switch (31) is activated by operating a switch button (32) to output an entrance door open signal, and when the switch button (32) is operated from outside the building (1), it slides to the passenger room (4) side and retreats. After the fee is paid, the rice milling equipment is configured to output a command signal to close the entrance / exit door by operating the degree of polishing selection switch (12). The third invention is a rice milling equipment having a structure in which a building (1) is divided into a machine room (3) and a passenger room (4) by a partition wall (2), and an entrance door (20) that opens and closes automatically is provided at the entrance of the passenger room (4), and an entrance door open switch (31) is activated by operation of a switch button (32) to output an entrance door open signal, and when the switch button (32) is operated from outside the building (1), it slides to the passenger room (4) side and retreats. The rice milling equipment is configured such that a human detection sensor (25) is provided in the passenger compartment (4), and if the human detection sensor (25) does not detect a human for a predetermined time after the entrance door (20) is opened, it outputs a command signal to close the entrance door, and the switch button (32) returns to a state in which it protrudes outside the building (1). First invention related to the present invention In a rice milling facility in which a building 1 is divided into a machine room 3 and a guest room 4 by a partition wall 2, an entrance door 20 that opens and closes automatically is provided at the entrance to the guest room 4, and operation of a switch button 32 activates an entrance / exit open switch 31 to output an entrance / exit door open signal, and when the switch button 32 is operated from outside the building 1, it slides to the guest room 4 side and retreats.

[0009] Second invention related to the present invention teeth, First invention related to the present invention In this case, a command signal to close the entrance / exit door is output after the fare is inserted.

[0010] The third invention related to the present invention teeth, First invention related to the present invention After the payment is made, a command signal to close the entrance / exit door is outputted by operating the degree of polishing selection switch 12.

[0011] The fourth invention related to the present invention teeth, Any one of the first to third inventions related to the present invention In this case, a human detection sensor 25 is provided in the passenger compartment 4, and if the human detection sensor 25 does not detect a person for a predetermined period of time after the entrance door 20 is opened, it outputs a command signal to close the entrance door, and the switch button 32 returns to its protruding state outside the building 1. [Effects of the Invention]

[0012] According to the present invention, when a user brings a bag of brown rice into an unmanned guest room 4, the operating surface of switch button 32, which protrudes outside building 1, is operated to open entrance door 20, allowing the user to enter guest room 4, but the operating surface of switch button 32 from outside building 1 is retracted at that time, preventing operation from outside building 1. Therefore, users in guest room 4 can use the rice milling equipment without being disturbed by others. First invention related to the present invention According to the law, when a user brings a bag of brown rice into an unmanned guest room 4, the operating surface of switch button 32, which protrudes outside building 1, is operated to open entrance door 20, allowing the user to enter guest room 4, but the operating surface of switch button 32 from outside building 1 is retracted at that time, making it impossible to operate from outside building 1. Therefore, users in guest room 4 can use the rice milling equipment without being disturbed by others.

[0013] Second or third invention related to the present invention According to First invention related to the present invention In addition to the above effect, the entrance / exit door close command signal is output after the payment is inserted or by selecting the degree of polishing selection switch 12, so the entrance / exit door 20 is closed safely even when the user is not in a position where he or she would be caught between the entrance / exit door 20.

[0014] The fourth invention related to the present invention teeth, Any one of the first to third inventions related to the present invention In addition to the above effect, it is possible to prevent the entrance door 20 from being left open when there is no one in the guest room 4, thereby preventing unexpected accidents and theft. [Brief explanation of the drawings]

[0015] [Figure 1] Front view of rice milling equipment according to an embodiment of the present invention [Figure 2] FIG. 1 is a plan view showing the inside of a rice milling facility according to an embodiment of the present invention. [Figure 3] FIG. 1 is a front view of a guest room of a rice milling facility according to an embodiment of the present invention. [Figure 4] Operation process diagram of rice milling equipment according to an embodiment of the present invention [Figure 5] (A) and (B) are schematic diagrams showing the operation of the switch button of the rice milling equipment according to the embodiment of the present invention. [Figure 6] (A) and (B) are cross-sectional views showing the cylindrical boss body configuration of the rice milling equipment according to the embodiment of the present invention. [Figure 7] FIG. 10 is an explanatory diagram of the operation of a human detection sensor in the rice milling equipment according to the embodiment of the present invention; [Figure 8]Control block diagram of rice milling equipment according to an embodiment of the present invention [Figure 9] Flowchart diagram of rice milling equipment according to an embodiment of the present invention [Figure 10] (A) A perspective view of another example of rice milling equipment according to an embodiment of the present invention, (B) A side view illustrating the operation of the rice milling equipment according to an embodiment of the present invention. [Figure 11] Flowchart diagram of rice milling equipment according to an embodiment of the present invention DETAILED DESCRIPTION OF THE INVENTION

[0016] A fee-based rice milling facility according to an embodiment of the present invention will be described below.

[0017] First, the configuration and operation of a rice milling facility according to an embodiment of the present invention will be specifically described with reference to FIGS.

[0018] As shown in Figure 2, the rice milling facility is configured with a building 1 separated in the front-to-back direction by a partition wall 2 into a machine room 3 and a guest room 4.

[0019] The rice milling equipment is equipped with an input hopper 5 that stores brown rice brought by users, a rotary valve 6 that discharges the brown rice from the input hopper 5, a first elevator 7 that receives the discharged brown rice and lifts it up, a stone remover 8 that sorts and separates stones mixed in the brown rice, a second elevator 9 that lifts the brown rice sorted by the stone remover 8, a rice milling machine 10 that mills the brown rice to produce white rice, and a white rice tank 11 that stores the white rice.

[0020] The feeding hopper 5 and white rice tank 11 are installed facing the passenger compartment 4, while the first elevator 7, stone remover 8, second elevator 9 and rice polisher 10 are installed on the machine room 3 side. The feeding hopper 5 is installed on one side (left or right) of the passenger compartment 4, and the white rice tank 11 is installed on the other side (left or right) of the passenger compartment 4. Between the feeding hopper 5 and the white rice tank 11 is provided a control panel 15 on whose surface there is arranged a whiteness setting switch (whiteness selection switch) 12 for setting the whiteness, a fee slot 13 for inserting the fee, a change return slot 14 and the like. On the front side of the feeding hopper 5 is provided an opening / closing shutter 16 for closing and opening the feeding opening of the feeding hopper 5.

[0021] Left and right sliding doors (entrance doors) 20 are provided at the entrances and exits of the guest rooms 4 in the building 1. The two entrance doors 20 are of the so-called double sliding door type, and the left and right doors 20L, 20R are provided so as to be able to be automatically operated independently from a fully open state to a fully closed state by electric motors 21L, 21R, full-open detection limit sensors 22L, 22R, and full-close detection limit sensors 23L, 23R. Open command signals or close command signals for the electric motors 21L, 21R are transmitted as follows to control the opening and closing of the left and right entrance doors 20L, 20R.

[0022] Below, we will explain the opening and closing operation of the left door 20L of the entrance doors 20. As a premise, a switch (entrance / exit opening switch) 31 is provided at a low position on the outside of the passenger compartment of the entrance / exit door 20L. As shown in Figure 6, the entrance / exit opening switch 31 is arranged as switches 31a and 31b in two locations, on the outside and inside of the passenger compartment 4, and is configured to be switched ON when the switch arm of the entrance / exit opening switch 31 comes into contact with switch pressing portions 32a and 32b provided on the switch button 32.

[0023] Either one of the switches 31a or 31b is ON, and they are set so that they cannot be ON at the same time. Based on the ON signal of either one, the control unit C issues an open signal for the opening and closing door 20L and outputs an open command signal to the electric motor 21L. Note that even if the ON input of the switch 31a or 31b continues, the output of the open command signal to the electric motor 21L is stopped upon detection by the full-open detection limit sensor 22L.

[0024] As shown in Figures 1 and 5, the switch button 32 is provided on the outside of a support pillar 27L of the building 1 adjacent to the opening operation start end of the access door 20L. It is provided so as to be slidable back and forth within a cylindrical boss body 33 shown in Figures 5 and 6, and when one end is pressed from the outside of the opening / closing door 20, it slides and retreats, with the other end projecting toward the passenger compartment 4 (Figures 5(A) and 6(A)). Conversely, when the end on the passenger compartment 4 side is pressed, it slides and retreats, with the outer end projecting (Figures 5(B) and 6(B)). In this embodiment, the height and size are set so that this operation can be performed with the toes.

[0025] Furthermore, the switch button 32 is biased to one side by a spring 34 wound around it. In this embodiment, the bias is toward the outside of the building 1. The cylindrical boss body 33 is provided with an electromagnetic solenoid 35 that acts on the switch button 32 and maintains the switch button 32 in a state where it protrudes toward the passenger compartment 4 (FIG. 6(B)) against the spring 34.

[0026] In addition, a human detection sensor 25 is provided in an appropriate location in the passenger compartment 4, for example, on the front side of the control panel 15. The human detection sensor 25 is an ultrasonic or infrared type, and is configured to emit light in a wide range, up, down, left, and right, as shown in Figure 7, so that it can detect the presence or absence of a passenger in the passenger compartment 4.

[0027] Next, the configuration and operation of the rice milling equipment according to the embodiment of the present invention will be described in more detail, mainly with reference to FIGS. 8 to 11.

[0028] The opening and closing control of the entrance door 20 will be described with reference to the flowchart in Figure 9. When a user approaches the left entrance door 20L and presses the end operation surface of the switch button 32 with their toes, the entrance door open switch 31a is turned ON (S101), an open command signal is output (S102), the electric motor 21L is driven in the forward direction, and the entrance door 20L is opened (S103). In S102, the electromagnetic solenoid 35 is turned ON, and the switch button 32 is pressed and held in the operating position. When a user enters the passenger compartment 4 through the opening of the entrance door 20L, the human detection sensor 25 is turned ON, and the presence of a person in the passenger compartment 4 can be detected (S104). In this guest room 4, the user inserts the usage fee into the fee slot 13, and then operates the degree of polishing setting switch 12 to set the degree of polishing (S105, S106), which outputs a command signal to close the entrance / exit door, driving the electric motor 21L in the reverse direction and closing the entrance / exit door 20L (S107, S108). At the same time, a rice-polishing operation start signal is output, which drives the drive motors of the elevators 7, 9, the stone remover 8, and the rice polisher 10, and the rice-polishing operation begins (S109, S110).

[0029] During this rice milling operation, the electromagnetic solenoid 35 remains ON and excited, and the switch button 32 maintains a state in which its outer end is inserted into the cylindrical boss body 33. In other words, during this time, the switch button 32 cannot be operated from outside the building, and the entrance door 20L cannot be opened. Therefore, it is impossible for someone to get in or out by approaching improperly.

[0030] During the rice milling operation, it is determined whether the entrance / exit open switch 31b is ON (S111). The entrance / exit open switch 31b is turned ON when an operator opens the opening / closing door 20 to exit the building, and the operator presses the switch button 32 protruding toward the passenger compartment 4 from the passenger compartment 4 side. That is, the switch button 32 slides against the excitation of the electromagnetic solenoid 35, turning on the entrance / exit open switch 31b. In this case, the process proceeds to S113, which will be described later, and the opening / closing door 20L can be opened.

[0031] If the rice milling operation is terminated without the entrance / exit open switch 31b being turned ON as determined in S111 (S112), the electromagnetic solenoid 35 is demagnetized by the rice milling operation termination signal (S113), and the switch button 32, which is now protruding inside the passenger compartment 4 due to the action of the spring 34, slides toward the outside of the building, turning ON the exit open switch 31b (S114). As a result, an open command signal is output to the left entrance / exit door 20L, driving the electric motor 21L in the forward direction and opening the entrance / exit door 20L (S115-S116). Note that the demagnetization of the electromagnetic solenoid 35 keeps the switch button 32 protruding outside the building due to the spring 34, and the switch button 32 is reset to a state that will not interfere with the next user's opening or closing of the entrance / exit door.

[0032] If the human detection sensor 25 does not turn ON in S104 and a predetermined time has elapsed, a close command signal is output to demagnetize the electromagnetic solenoid 35, and the electric motor 21L is driven in the reverse direction to close the entrance / exit door 20L (S117-S119). This is the case when it is estimated that a small animal or bird other than a user has come into contact with the switch button 32, and it is possible to avoid the entrance / exit door 20 being in an unintended open state. Note that a configuration may be adopted in which an alarm sound is output in response to the entrance / exit door close command signal in S118.

[0033] According to the above embodiment, when a user brings a bag of brown rice into an unmanned guest room 4, the operating surface of switch button 32 protrudes outside building 1, so the user can operate it. When switch button 32 is operated, opening and closing door 20 opens and the user can enter guest room 4, but at that time the operating surface of switch button 32 from outside building 1 retracts into cylindrical boss body 33 and switch button 32 protrudes toward guest room 4, so it cannot be operated from outside building 1. Therefore, users in guest room 4 can use the rice milling equipment without being disturbed by others.

[0034] Since the switch button 32 is provided at a low position on the outside of the passenger compartment of the entrance doors 20L, 20R, the entrance opening switches 31a, 31b can be turned on by operating the foot, and the user can easily enter the passenger compartment 4 even when carrying a brown rice storage bag with both hands. In addition, the entrance door 20 can be prevented from opening by detecting a person passing in front of the rice milling equipment.

[0035] In the above embodiment, an electromagnetic solenoid 35 is provided on the side of the cylindrical boss body 33 through which the switch button 32 is inserted, and the switch button 32 is maintained in the position biased by the spring 34 or returned to its original position by the biasing force of the spring 34. As a result, the opening and closing door 20 opens automatically when the rice milling operation is completed, and operation of the switch button 32 from the passenger compartment 4 side can be omitted. However, it is also possible to eliminate the spring 34 and electromagnetic solenoid 35 and configure the switch to be switched by simply sliding the switch button 32 with the toe from inside or outside the building 1.

[0036] In addition, in the above embodiment, after the payment is made, a command signal to close the entrance / exit door is output by selecting the degree of polishing selection switch 12, so that the entrance / exit door 20 is closed safely even when the user is not in a position where he or she would be caught between the entrance / exit door 20.

[0037] The same effect can be obtained by outputting a command signal to close the entrance / exit door after the fare is inserted.

[0038] Furthermore, if the human detection sensor 25 does not detect a person for a predetermined period of time after the entrance door 20 is opened, it outputs a command signal to close the entrance door 20, and at the same time, the switch button 32 is returned to its protruding state outside the building 1 by the action of the spring 34 as the electromagnetic solenoid 35 is demagnetized.This prevents the entrance door 20 from being left open when there is no one in the guest room 4, thereby preventing unexpected accidents and theft.

[0039] Next, we will explain a configuration that detects the approach of a user's feet and controls the opening and closing of the entrance door 20, instead of using the switch button 32. As a premise, entrance opening and closing detection sensors 24L, 24R are provided at low positions outside the passenger compartment of the entrance doors 20L, 20R, as shown in Figure 10. The entrance opening and closing detection sensors 24L, 24R are in the form of capacitance proximity sensors, and are configured to switch ON when they detect the approach of a user's feet, for example.

[0040] 11, when a user approaches the left entrance door 20L and places their feet close to the entrance opening / closing detection sensor 24L to turn it on (S201), an open command signal is output (S202), the electric motor 21L is driven to rotate in the forward direction, and the entrance door 20L is opened (S203). When the user enters the guest room 4 through the opening of the entrance door 20L, the human detection sensor 25 is turned on to detect the presence of a person in the guest room 4, and when the user inserts a fee into the fee slot 13 in this state, a close command signal is output, the electric motor 21L is driven in the reverse direction, and the entrance door 20L is closed (S204 to S207).

[0041] Next, when the degree of polishing is set by operating the degree of polishing setting switch 12, a rice-polishing operation start signal is output, and the drive motors of the elevators 7, 9, the stone remover 8, and the rice polisher 10 are driven to start the rice-polishing operation (S208-S210). During this rice-polishing operation, the entrance opening / closing detection sensors 24L, 24R are restricted to ON (S211). In other words, during this time, the left and right entrance doors 20 cannot be opened together. Therefore, even if someone approaches the entrance opening / closing detection sensors 24L or 24R and tries to turn the sensors ON, this is restricted, preventing unauthorized access.

[0042] Next, with regard to the control related to the exit opening / closing detection sensors 26L, 26R provided inside the passenger compartment 4, when the exit opening / closing detection sensor 26L detects the approach of the feet of a user in the passenger compartment 4, an open command signal is output to the left entrance / exit door 20L, the electric motor 21L is driven in the forward direction, and the entrance / exit door 20L is opened. Similarly, the exit opening / closing detection sensor 26R opens the entrance / exit door 20R. Therefore, after the rice milling operation is completed, when an exit opening / closing detection sensor, for example, the right exit opening / closing detection sensor 26R, detects the approach of the feet of a user, an open command signal is output to the right entrance / exit door 20R, the electric motor 21R is driven in the forward direction, and the right entrance / exit door 20R closer to the polished rice tank 11 is opened (S212 to S215). When the entrance door open signal is output, the ON restriction of the entrance opening / closing detection sensors 24L, 24R is released (S216), and the entrance door is reset so that it will not be affected when the next user opens or closes the entrance door.

[0043] If a user attempts to leave the guest room 4 during rice milling operation in S212, the exit opening / closing detection sensor, for example, the left exit opening / closing detection sensor 26L, detects the user's approach (S217), and an open command signal is output to the left entrance / exit door 20L, causing the electric motor 21L to rotate forward, and the left entrance / exit door 20L closest to the feeding hopper 5 to open (S218, S219). Note that in S219, after a predetermined time (e.g., 30 seconds), a close command signal is output and the entrance / exit door 20L closes, but the entrance / exit door open output in S218 is configured to cancel the ON restriction of the entrance opening / closing detection sensors 24L, 24R (S220). Therefore, even if the entrance / exit door 20L is closed while the user is outside the guest room 4, the entrance / exit door 20L can be opened by turning on the entrance opening / closing detection sensor 24L (S221 to S223). After a predetermined time has elapsed, the entrance door 20L is closed (S223), and thereafter the control returns to S210.

[0044] If the human detection sensor 25 does not turn ON in S204 and a predetermined time has elapsed, a close command signal is output, the electric motor 21L is driven in the reverse direction, and the entrance door 20L is closed (S224-S226). This is the case when it is presumed that a small animal or bird other than a user has reacted to the entrance opening / closing detection sensors 24L, 24R, and it is possible to avoid the entrance door 20 being opened unexpectedly. Note that a configuration may be adopted in which an alarm sound is output in response to the entrance door close command signal in S225.

[0045] Since the entrance opening / closing detection sensors 24L, 24R are provided at a low position on the outside of the passenger compartment of the entrance / exit doors 20L, 20R, the entrance opening / closing detection sensors 24L, 24R can be turned on by the approach of a foot, and a user can easily enter the passenger compartment 4 even when holding a bag of brown rice in both hands. Similarly, the exit opening / closing detection sensors 26L, 26R are provided at a low position, and the exit opening / closing detection sensors 26L, 26R can be turned on by the approach of a foot, and a user can easily exit the passenger compartment 4 even when holding a bag of polished rice in both hands.

[0046] The entrance opening / closing detection sensors 24L, 24R are provided on the outside of the support pillars 27L, 27R of the building 1 adjacent to the opening end of the entrance doors 20L, 20R. Therefore, it is easy for a user to enter through the entrance doors 20L, 20R, which open immediately when the entrance opening / closing detection sensors 24L, 24R detect the approach of a foot.

[0047] The entrance / exit doors 20 are in the form of two so-called sliding doors, and entrance opening / closing detection sensors 24L, 24R and exit opening / closing detection sensors 26L, 26R are arranged to correspond to the left and right entrance / exit doors 20L, 20R, respectively, so that the entrance / exit doors 20L, 20R can be opened and closed from the outside or the passenger compartment 4 side as desired.

[0048] Incidentally, it is advisable to provide at least the entrance opening / closing detection sensor 24 on the support pillar 27 (support pillar 27L in the illustrated example) facing the brown rice feeding hopper 5. When the entrance / exit door 20L opens to enter the guest room 4, the feeding hopper 5 is right in front of the door, making it easy to enter. On the other hand, by providing the exit opening / closing detection sensor 26 on the support pillar 27 (support pillar 27R in the illustrated example) facing the white rice tank 11, a user who has bagged polished rice in the white rice tank 11 can quickly approach the exit opening / closing detection sensor 26 with their foot even while holding the bag, making it easier to leave the guest room 4. [Explanation of symbols]

[0049] 1 Building 2 Partition wall 3 Machine room 4 guest rooms 5 Brown rice feeding hopper 11 White rice tank 20 Doors (entrance and exit doors) 25 Human detection sensors 31 Entrance / exit switch 31a Entrance / exit switch 31b Entrance / exit switch 32 Switch Button

Claims

1. A rice milling equipment configured such that a building (1) is divided into a machine room (3) and a guest room (4) by a partition wall (2), and an entrance / exit door (20) that opens and closes automatically is provided at the entrance / exit of the guest room (4), and is configured so that an entrance / exit open switch (31) is activated by operating a switch button (32) to output an entrance / exit door open signal, and when the switch button (32) is operated from outside the building (1), it slides to the guest room (4) side and retreats, This rice milling equipment is configured to output a command signal to close the entrance / exit door after payment is made.

2. A rice milling equipment configured such that a building (1) is divided into a machine room (3) and a guest room (4) by a partition wall (2), and an entrance / exit door (20) that opens and closes automatically is provided at the entrance / exit of the guest room (4), and is configured so that an entrance / exit open switch (31) is activated by operating a switch button (32) to output an entrance / exit door open signal, and when the switch button (32) is operated from outside the building (1), it slides to the guest room (4) side and retreats, After the fee is paid, the rice milling equipment is configured to output a command signal to close the entrance / exit door by selecting the degree of polishing selection switch (12).

3. A rice milling equipment configured such that a building (1) is divided into a machine room (3) and a guest room (4) by a partition wall (2), the entrance to the guest room (4) is provided with an entrance door (20) that opens and closes automatically, and the operation of a switch button (32) activates an entrance / exit open switch (31) to output an entrance / exit door open signal, and the switch button (32) is configured to slide toward the guest room (4) and retreat when operated from outside the building (1), A human detection sensor (25) is provided in the passenger compartment (4), and if the human detection sensor (25) does not detect a human for a predetermined time after the entrance door (20) is opened, it outputs a command signal to close the entrance door, and the switch button (32) returns to a state where it protrudes outside the building (1).

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