Door system

Abstract

To provide a door system configured to effectively utilize a door.SOLUTION: A door system 1 includes a first frame body 10, a second frame body 20 adjacent to the first frame body 10, and a door 30. The first frame body 10 has a first opening 11, and the second frame body 20 has a second opening 21 that opens in a direction different from the first opening 11. The door 30 is rotatable relative to the first frame body 10 between a first closing position where the first opening 11 is closed and the second opening 21 is opened and an opening position where the first opening 11 is opened and the second opening 21 is opened. Further, the door 30 is slidable along the second frame 20 between the open position and a second closing position at which the first opening 11 is opened and the second opening 21 is closed.SELECTED DRAWING: Figure 2

Description

[Technical field]

[0001] The present invention relates to a door system. [Background technology]

[0002] Conventionally, a structure has been known in which a door panel is hinged to a pull-in plate arranged along the inner surface of a side wall, and is held so as to rotate relative to the pull-in plate to open and close the front, and is stored along the side wall by rotating it to a position where it is flush with the pull-in plate and pushing it in together with the pull-in plate (Patent Document 1). In this technology, the pull-in plate is suspended via a hanging rail fixed to the side edge of the ceiling and a hanging door roller hung on the hanging rail so as to be able to move parallel to the side wall. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] JP 2003-074250 A Summary of the Invention [Problem to be solved by the invention]

[0004] Incidentally, in the conventional structure, the door has no function when stored. Therefore, it is desirable to be able to make effective use of doors. [Means for solving the problem]

[0005] The door system comprises a first frame body having a first opening, a second frame body having a second opening that opens in a direction different from the first opening, the second frame body being adjacent to the first frame body, and a door. The door is rotatable relative to the first frame between a first closed position in which the first opening is closed and the second opening is opened, and an open position in which the first opening is opened and the second opening is opened, and is slidable along the second frame between the open position and a second closed position in which the first opening is opened and the second opening is closed.

[0006] The door can be rotated relative to the first frame body between a first closed position and an open position, and can slide along the second frame body between the open position and the second closed position, allowing the door to be used effectively.

[0007] The door may be configured to open in a direction away from a first area formed between the first frame and the second frame when it rotates from the first closed position to the open position.

[0008] When the door rotates from the first closed position to the open position, it opens in the direction opposite to the first area, thereby allowing the first area to be utilized.

[0009] The door system may include a door support member that pivotally supports the door so that the door can pivot between the first closed position and the open position, and a rail that slidably supports the door support member so that the door can slide between the open position and the second closed position.

[0010] The door system includes a door support member and a rail, allowing the door to slide smoothly.

[0011] The door system may include a first wheel provided on the door support member, the first wheel contacting and rolling on the rail when the door slides between the open position and the second closed position.

[0012] The door system has a first wheel, which allows the door to slide more smoothly and with less force.

[0013] The rail may include an upper rail provided on an upper portion of the second frame body, the first wheel may include an upper wheel provided on an upper portion of the door support member, and the door support member may be configured to be suspended from the upper rail by the upper wheel being supported by the upper rail.

[0014] By supporting the upper wheels on the upper rail, the upper wheels can roll more reliably when the door slides, allowing the door to slide more smoothly.

[0015] The door system may be configured to include a second wheel provided on an upper portion of the door, the second wheel contacting and rolling on the upper rail when sliding between the open position and the second closed position.

[0016] The door system has a second wheel, which allows the door to slide more smoothly and with less force.

[0017] The door system may be configured to include a third wheel provided at a lower portion of the door, the third wheel at least being configured to roll in contact with a floor when rotating between the first closed position and the open position.

[0018] The door system is equipped with a third wheel, which allows the door to rotate smoothly and with less force.

[0019] The first opening may be configured to connect the first area to a second area in the factory where workers are active, and the second opening may be configured to connect the first area to a third area in the factory separated from the second area and where machinery and equipment are operated.

[0020] Since the first opening communicates the first area with the second area and the second opening communicates the first area with the third area, the first opening can be opened and closed with one door while isolating the first area from the third area.

[0021] The door system may further include a sensor that detects the position of the door, and a control unit, and the control unit may be configured to allow operation of the mechanical equipment when the sensor detects that the door is in the first closed position.

[0022] Costs can be reduced by allowing the operation of machinery and equipment based on the detection results of a sensor that detects the position of the door. Effect of the Invention

[0023] The door can be used efficiently.

[0024] When the door rotates from the first closed position to the open position, it opens in the direction opposite to the first area, thereby allowing the first area to be utilized.

[0025] The door system includes a door support member and a rail, allowing the door to slide smoothly.

[0026] The door system has a first wheel, which allows the door to slide more smoothly and with less force.

[0027] By supporting the upper wheels on the upper rail, the upper wheels can roll more reliably when the door slides, allowing the door to slide more smoothly.

[0028] The door system has a second wheel, which allows the door to slide more smoothly and with less force.

[0029] The door system is equipped with a third wheel, which allows the door to rotate smoothly and with less force.

[0030] Since the first opening communicates the first area with the second area and the second opening communicates the first area with the third area, the first opening can be opened and closed with one door while isolating the first area from the third area.

[0031] Costs can be reduced by allowing the operation of machinery and equipment based on the detection results of a sensor that detects the position of the door. [Brief description of the drawings]

[0032] [Figure 1] FIG. 1 is a perspective view of a door system according to an embodiment, showing a state in which the door is in a first closed position. [Diagram 2] FIG. 1 is a perspective view of the door system with the door in an open position. [Diagram 3] FIG. 2 is a perspective view of the door system showing the door in a second closed position. [Figure 4] These are top views of the door system, with (a) showing the door in a first closed position, (b) showing the door in an open position, and (c) showing the door in a second closed position. [Diagram 5] 13A is a perspective view showing the upper rail, the upper part of the door support member, and the upper wheel, and FIG. 13B is a view from a second direction. [Figure 6] 13A is a perspective view showing the lower rail, the lower part of the door support member, and the lower wheel, and FIG. 13B is a view from a second direction. [Figure 7] FIG. 4 is a perspective view showing the door and the second wheel. [Figure 8] FIG. 13 is a diagram showing a state in which the third wheel is separated from the floor. [Figure 9] FIG. 2 is a control block diagram of the door system. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0033] Next, an embodiment will be described. As shown in Fig. 1, the door system 1 according to the embodiment includes a first frame body 10, a second frame body 20, a door 30, a door support member 40, a rail 50, a first wheel 60, a second wheel 70, and a third wheel 80. The door system 1 is installed in, for example, a factory where goods are manufactured or processed.

[0034] The first frame 10 has a first side frame SF1, a second side frame SF2, and a first upper frame UF1. The first side frame SF1 and the second side frame SF2 each extend vertically. The first side frame SF1 and the second side frame SF2 are disposed apart in a first direction. The first direction is a direction perpendicular to the vertical direction. The first upper frame UF1 extends in the first direction. The first upper frame UF1 connects the upper ends of the first side frame SF1 and the second side frame SF2 to each other.

[0035] The first frame 10 has a first opening 11. The first opening 11 is formed between the first side frame SF1 and the second side frame SF2. More specifically, the first opening 11 is formed by the first side frame SF1, the second side frame SF2, the first upper frame UF1, and the floor FL where the door system 1 is installed. The first opening 11 opens in a second direction. The second direction is a direction perpendicular to the up-down direction and intersects with the first direction. In this embodiment, the second direction is perpendicular to both the up-down direction and the first direction.

[0036] The second frame body 20 is provided adjacent to the first frame body 10. In this embodiment, when the door system 1 is viewed from above, the angle between the first frame body 10 and the second frame body 20 is approximately 90 degrees. The second frame body 20 has a second side frame SF2, a third side frame SF3, a second upper frame UF2, and a lower frame LF. In this embodiment, the second side frame SF2 is a part of the first frame body 10 and also a part of the second frame body 20.

[0037] The third side frame SF3 extends vertically. The second side frame SF2 and the third side frame SF3 are disposed apart in the second direction. The second upper frame UF2 and the lower frame LF each extend in the second direction. The second upper frame UF2 connects upper ends of the second side frame SF2 and the third side frame SF3 to each other. The lower frame LF connects lower ends of the second side frame SF2 and the third side frame SF3 to each other.

[0038] The second frame 20 has a second opening 21. The second opening 21 is formed between the second side frame SF2 and the third side frame SF3. More specifically, the second opening 21 is formed by the second side frame SF2, the third side frame SF3, the second upper frame UF2, and the lower frame LF. The second opening 21 opens in a direction different from that of the first opening 11. More specifically, the second opening 21 opens in a direction intersecting the direction in which the first opening 11 opens. In this embodiment, the second opening 21 opens in the first direction.

[0039] The door 30 is rotatable relative to the first frame 10 between a first closed position shown in Fig. 1 and an open position shown in Fig. 2. The door 30 is rotatable about an axis extending in the vertical direction relative to the first frame 10. The first closed position is a position where the first opening 11 is closed and the second opening 21 is opened. The open position is a position where the first opening 11 is opened and the second opening 21 is opened. The door 30 is capable of opening and closing the first opening 11 by rotating between the first closed position and the open position.

[0040] In addition, the door 30 is slidable along the second frame 20 between an open position shown in Fig. 2 and a second closed position shown in Fig. 3. The door 30 is slidable in a second direction relative to the second frame 20. The second closed position is a position where the first opening 11 is opened and the second opening 21 is closed. The door 30 is able to open and close the second opening 21 by sliding between the open position and the second closed position.

[0041] The door 30 has a door frame 31, a handle 32, and a transparent panel 33. The door frame 31 has a first door side frame 31A, a second door side frame 31B, a door upper frame 31C, a door lower frame 31D, a first cross member 31E, and a second cross member 31F.

[0042] The first door side frame 31A and the second door side frame 31B each extend vertically. As shown in Fig. 1, the first door side frame 31A and the second door side frame 31B are arranged apart in the first direction when the door 30 is in the first closed position. The door upper frame 31C connects the upper ends of the first door side frame 31A and the second door side frame 31B to each other. The door lower frame 31D connects the lower ends of the first door side frame 31A and the second door side frame 31B to each other.

[0043] The first cross member 31E extends vertically. The first cross member 31E connects the central portions of the door upper frame 31C and the door lower frame 31D. The second cross member 31F extends in the first direction when the door 30 is in the first closed position. The second cross member 31F connects the central portions of the first door side frame 31A and the second door side frame 31B. The first cross member 31E and the second cross member 31F are connected to each other at their central portions.

[0044] The handle 32 is a part that is gripped when opening or closing the door 30. The handle 32 has a U-shape. The handle 32 is fixed to the door frame 31. Specifically, the handle 32 is fixed to the first door side frame 31A. The handle 32 is provided so as to protrude in the first direction from a side surface on the outer side in the first direction of the first door side frame 31A when the door 30 is located in the first closed position.

[0045] The transparent panel 33 is a sheet-like member that closes the opening of the door frame 31. The transparent panel 33 is fixed to the door frame 31. The transparent panel 33 may be, for example, a transparent plate such as an acrylic plate, or may be a transparent, thin sheet-like or film-like member.

[0046] As shown in FIG. 4(a), the factory has a buffer area A1 as an example of a first area, a worker area A2 as an example of a second area, and an equipment area A3 as an example of a third area. The buffer area A1 is an area formed between the first frame body 10 and the second frame body 20. The worker area A2 is an area in the factory where workers are active. The equipment area A3 is an area in the factory where machinery and equipment are operated. The equipment area A3 is separated from the worker area A2 by a partition wall W or the like.

[0047] The first opening 11 communicates the buffer area A1 with the worker area A2. More specifically, the first opening 11 communicates the buffer area A1 with the worker area A2 when the door 30 is in the open position shown in FIG. 4(b) or in the second closed position shown in FIG. 4(c). The second opening 21 communicates the buffer area A1 with the equipment area A3. More specifically, the first opening 11 communicates the buffer area A1 with the equipment area A3 when the door 30 is in the first closed position shown in FIG. 4(a) or in the open position shown in FIG. 4(b).

[0048] An example of the mechanical equipment installed in the equipment area A3 is a robot hand RT. The robot hand RT is a device that holds and transports a workpiece loaded on a cart DS. As shown in FIG. 4(c), when the door 30 is located at the second closed position, the cart DS can be carried into and out of the buffer area A1 through the first opening 11. As shown in FIG. 4(a), when the door 30 is located at the first closed position, the robot hand RT can take out a workpiece from the cart DS arranged in the buffer area A1 through the second opening 21.

[0049] 4(b), when the door 30 rotates from the first closed position shown by the imaginary line to the open position shown by the solid line, the door 30 opens in the direction away from the buffer area A1. Specifically, when the door 30 rotates from the first closed position to the open position, the door 30 opens toward the worker area A2.

[0050] As shown in Fig. 2, the door support member 40 is a member that rotatably supports the door 30 so that the door 30 can rotate between a first closed position and an open position. The door support member 40 extends vertically. The door support member 40 rotatably supports the door 30 via a plurality of hinges 45 (see Fig. 4).

[0051] The rail 50 is a member that slidably supports the door support member 40 so that the door 30 can slide between the open position and the second closed position. The rail 50 includes an upper rail 51 and a lower rail 52. The upper rail 51 and the lower rail 52 each extend in the second direction. The upper rail 51 is provided on an upper portion of the second frame body 20. The lower rail 52 is provided on a lower portion of the second frame body 20.

[0052] 5(a) and (b), the upper rail 51 is attached to the second upper frame UF2 of the second frame body 20 by a plurality of rail mounting brackets 53. The upper rail 51 has an upper wall 51A, a pair of side walls 51B, and a pair of lower walls 51C. The upper wall 51A extends in the second direction. The side walls 51B extend downward from both ends of the upper wall 51A in the first direction. The lower walls 51C extend inward in the first direction of the upper rail 51 from the lower ends of the side walls 51B.

[0053] The first wheels 60 roll in contact with the rails 50 when the door 30 slides between the open position and the second closed position. The first wheels 60 are provided on the door support member 40. The first wheels 60 include an upper wheel 61 and a lower wheel 62 (see FIG. 6).

[0054] The upper wheels 61 roll in contact with the upper rail 51 when the door 30 slides between the open position and the second closed position. The upper wheels 61 are provided on the upper part of the door support member 40. A wheel mounting bracket 63 is attached to the upper surface of the door support member 40. The upper wheels 61 are supported by the wheel mounting bracket 63 so as to be rotatable about an axis extending in the first direction relative to the door support member 40. In this embodiment, two upper wheels 61 are provided on each side of the wheel mounting bracket 63 in the first direction.

[0055] The door support member 40 is provided in a state of being suspended from the upper rail 51 by the upper wheels 61 entering the inside of the upper rail 51 and being supported by the lower wall 51C of the upper rail 51. The upper wheels 61 roll in contact with the lower wall 51C when the door 30 slides between the open position and the second closed position.

[0056] 6(a) and 6(b), the lower rail 52 is attached to the lower frame LF of the second frame 20 by a plurality of rail mounting brackets 54. The lower rail 52 has a groove 52A on its upper surface that extends in the first direction.

[0057] The lower wheels 62 roll in contact with the lower rail 52 when the door 30 slides between the open position and the second closed position. The lower wheels 62 are provided on the lower part of the door support member 40. Specifically, a wheel mounting bracket 64 is attached to the side of the door support member 40. The lower wheels 62 are supported by the wheel mounting bracket 64 so as to be rotatable about an axis extending in the first direction relative to the door support member 40. In this embodiment, one lower wheel 62 is provided on each end of the wheel mounting bracket 64 in the second direction.

[0058] The lower wheel 62 has, on its outer circumferential surface, a contact surface 62A and a protrusion 62B provided so as to protrude from the contact surface 62A to the outside in the radial direction of the lower wheel 62. The protrusion 62B of the lower wheel 62 engages with the groove 52A of the lower rail 52. When the door 30 slides between the open position and the second closed position, the contact surface 62A of the lower wheel 62 comes into contact with the lower rail 52 and rolls.

[0059] Stoppers 55 are provided on both ends of lower rail 52 in the second direction (see also FIG. 3). Stoppers 55 are made of an L-shaped member, and are fixed to the upper surface of lower rail 52 with stopper surface 55A facing inward in the second direction of lower rail 52. Lower wheels 62 abut against stopper surface 55A from the inside of lower rail 52 in the second direction, thereby restricting further movement of door support member 40 in the second direction.

[0060] As shown in Fig. 7, the second wheel 70 rolls in contact with the upper rail 51 when the door 30 slides between the open position and the second closed position. The second wheel 70 is provided on the upper part of the door 30. A wheel mounting bracket 73 is attached to the upper surface of the door upper frame 31C of the door 30. The second wheel 70 is supported by the wheel mounting bracket 73 so as to be rotatable about an axis extending in the first direction relative to the door 30 when the door 30 is located at the open position.

[0061] In this embodiment, the wheel mounting brackets 73 are attached to the end of the door upper frame 31C close to the door support member 40 and near the center of the door upper frame 31C in the longitudinal direction of the door upper frame 31C. Two second wheels 70 are provided on each side in the first direction of each wheel mounting bracket 73. When the door 30 slides from the open position to the second closed position, the second wheels 70 enter the inside of the upper rail 51 and roll in contact with the lower wall 51C of the upper rail 51.

[0062] As shown in Fig. 2, the third wheel 80 rolls in contact with the floor FL when the door 30 rotates between the first closed position and the open position. The third wheel 80 is provided on the lower part of the door 30. Specifically, the third wheel 80 is attached to the door lower frame 31D. As an example, the third wheel 80 is a caster. The third wheel 80 includes a first caster 81 and a second caster 82.

[0063] The first caster 81 is attached to an end of the door lower frame 31D farther from the door support member 40 in the longitudinal direction of the door lower frame 31D. The second caster 82 is attached to an end of the door lower frame 31D closer to the door support member 40 in the longitudinal direction of the door lower frame 31D.

[0064] In this embodiment, when the door 30 slides from the open position to the second closed position, the first caster 81 and the second caster 82 are in a floating state from the floor FL at least halfway and are separated from the floor FL. On the other hand, the first caster 81 and the second caster 82 are configured to roll in contact with the floor FL when the door 30 rotates between the open position and the first closed position.

[0065] For example, as shown in Fig. 8, the floor FL may be formed with a first surface FL1 and a second surface FL2 lower than the first surface FL1. When the door 30 rotates between the first closed position and the open position, the first caster 81 and the second caster 82 may be positioned on the first surface FL1 and roll in contact with the first surface FL1. When the door 30 slides between the open position and the second closed position, the first caster 81 and the second caster 82 may be positioned on the second surface FL2 and move away from the second surface FL2.

[0066] As shown in FIG. 9, the door system 1 further includes a sensor 90 and a control unit 100. The sensor 90 is a sensor that detects the position of the door 30. In this embodiment, the sensor 90 includes a first sensor 91 and a second sensor 92.

[0067] The first sensor 91 can detect that the door 30 is in the first closed position (see FIG. 1). As an example, the first sensor 91 is a push switch that is turned ON when the door 30 is in the first closed position and is turned OFF when the door 30 is not in the first closed position. The first sensor 91 is attached to the first side frame SF1 of the first frame 10.

[0068] The second sensor 92 is capable of detecting that the door 30 is located at the second closed position (see FIG. 3). As an example, the second sensor 92 is a push switch that is turned ON when the door 30 is located at the second closed position and is turned OFF when the door 30 is not located at the second closed position. The second sensor 92 is attached to the third side frame SF3 of the second frame 20.

[0069] The control unit 100 has a CPU, a ROM, a RAM, a rewritable non-volatile memory, etc., and executes a program stored in advance. The control unit 100 may be attached to, for example, the first frame body 10, the second frame body 20, the door 30, the door support member 40, etc. The control unit 100 may also be disposed separately from the frame bodies 10, 20, the door 30, etc. As an example, the control unit 100 may be a control unit for controlling mechanical equipment such as a robot hand RT.

[0070] The control unit 100 permits the operation of the mechanical equipment when the sensor 90 detects that the door 30 is located at the first closed position. Specifically, the control unit 100 permits the operation of the robot hand RT when the first sensor 91 detects that the door 30 is located at the first closed position. More specifically, the control unit 100 permits the operation of the robot hand RT when the first sensor 91 is ON.

[0071] On the other hand, when the first sensor 91 does not detect that the door 30 is located at the first closed position, the control unit 100 does not permit the operation of the robot hand RT. Specifically, when the first sensor 91 is OFF, the control unit 100 does not permit the operation of the robot hand RT. When the door 30 is located at the first closed position, the control unit 100 permits the operation of the robot hand RT, and does not permit the operation of the robot hand RT when the door 30 is located at a position other than the first closed position.

[0072] Furthermore, the control unit 100 releases the locking by the cart locking mechanism LK when the second sensor 92 detects that the door 30 is located at the second closed position. Specifically, the control unit 100 releases the locking by the cart locking mechanism LK when the second sensor 92 is turned ON. The cart locking mechanism LK is a mechanism that is provided in, for example, the buffer area A1, and locks the cart DS so that the cart DS does not move when the robot hand RT holds a workpiece loaded on the cart DS.

[0073] The control unit 100 locks the cart DS by the cart locking mechanism LK when the second sensor 92 no longer detects that the door 30 is in the second closed position. Specifically, the control unit 100 locks the cart DS by the cart locking mechanism LK when the second sensor 92 is turned OFF. The control unit 100 unlocks the cart DS when the door 30 is in the second closed position, and locks the cart DS to prevent it from moving when the door 30 is in a position other than the second closed position.

[0074] According to the door system 1 of this embodiment, the door 30 can be effectively utilized because the door 30 can rotate between the first closed position and the open position relative to the first frame 10 and can slide between the open position and the second closed position along the second frame 20. Specifically, the door 30 can be used to open and close both the first opening 11 and the second opening 21.

[0075] When the door 30 rotates from the first closed position to the open position, it opens toward the worker area A2 opposite the buffer area A1, so that the buffer area A1 can be used as a place to place a cart DS, for example. Also, by opening the door 30 toward the worker area A2, objects placed in the buffer area A1, such as the cart DS, do not come into contact with the opening door 30. Also, by opening the door 30 toward the outside of the buffer area A1, even if the door 30 closes when someone enters the buffer area A1 for cleaning work, for example, the door 30 can be pushed open from within the buffer area A1, making it easy to get out of the buffer area A1.

[0076] The door system 1 includes the door support member 40 and the rail 50 that slidably supports the door support member 40, so that the door 30 can slide smoothly between the open position and the second closed position.

[0077] The door system 1 includes the first wheel 60 that rolls in contact with the rail 50 when the door 30 slides, so that the door 30 can slide more smoothly between the open position and the second closed position. The door 30 can be slid with a small force.

[0078] By supporting the upper wheel 61 of the first wheel 60 on the upper rail 51, the upper wheel 61 can roll more reliably when the door 30 slides. This allows the door 30 to slide more smoothly.

[0079] By engaging the protrusion 62B of the lower wheel 62 with the groove 52A of the lower rail 52, the lower part of the door support member 40 can be prevented from moving in the first direction.

[0080] The stoppers 55 are provided at both ends of the lower rail 52 in the second direction, thereby preventing the door support member 40 from coming off the rail 50.

[0081] By providing the door system 1 with the second wheel 70 that rolls in contact with the upper rail 51 when the door 30 slides, the door 30 can slide more smoothly between the open position and the second closed position. The door 30 can be slid with a small force.

[0082] The door system 1 includes the third wheel 80 that rolls in contact with the floor FL when the door 30 rotates, so that the door 30 can be smoothly rotated between the first closed position and the open position. The door 30 can be rotated with a small force.

[0083] The first opening 11 connects the buffer area A1 to the worker area A2, and the second opening 21 connects the buffer area A1 to the equipment area A3, so that the first opening 11 can be opened and closed with one door 30 while isolating the buffer area A1 from the equipment area A3.

[0084] By allowing the robot hand RT to operate based on the detection results of the sensor 90 that detects the position of the door 30, costs can be reduced compared to, for example, a case in which a line sensor is provided on the first frame body 10 and the operation of the robot hand RT is allowed based on the detection results of the line sensor.

[0085] Since the dolly DS is locked so as not to move when the door 30 moves from the second closed position, the dolly DS can be locked by moving the door 30 to the first closed position which permits the operation of the robot hand RT. This makes it possible to prevent forgetting to lock the dolly DS, compared to a case where a separate operation is performed to lock the dolly DS.

[0086] Although the embodiment has been described above, the door system can be modified as appropriate as exemplified below.

[0087] For example, the third wheels provided at the bottom of the door may be configured to roll in contact with the floor not only when the door rotates between the first closed position and the open position, but also when the door slides between the open position and the second closed position. The third wheels may be swivel casters. In the above embodiment, two third wheels 80 are provided at the bottom of the door 30, but the number of third wheels is arbitrary. Also, the door may not be provided with a third wheel.

[0088] In the above embodiment, eight second wheels 70 are provided on the upper part of the door 30, but the number of second wheels is arbitrary. Also, a configuration without second wheels is also possible.

[0089] In the above embodiment, the door support member 40 is provided with four upper wheels 61, but the number of upper wheels is arbitrary. Also, in the above embodiment, the door support member 40 is provided with two lower wheels 62, but the number of lower wheels is arbitrary. Also, the door system may be configured to include only upper wheels and no lower wheels, or to include only lower wheels and no upper wheels. Also, the door system may be configured to include no first wheels (upper wheels and lower wheels).

[0090] In the above embodiment, the door support member 40 is arranged in a state suspended from the upper rail 51, but for example, the door support member may be configured so that an upper wheel provided on the top of the door support member, or the upper end of the door support member, engages with a groove in the upper rail.

[0091] In the above embodiment, the upper rail 51 is provided on the upper part of the second frame body 20, but for example, the upper rail may be provided on the ceiling of the place where the door system is installed. In the above embodiment, the lower rail 52 is provided on the lower part of the second frame body 20, but for example, the lower rail may be provided on the floor of the place where the door system is installed. The rail may be provided integrally with the second frame body. Also, the rail does not have to be continuous, and may be provided discontinuously, as long as the door can slide.

[0092] In the above embodiment, the stopper 55 is provided on the lower rail 52, but for example, the stopper may be provided on the upper rail. Also, the stopper may be provided on both the upper rail and the lower rail. Also, the stopper may be provided on a member other than the rail, for example, the second frame body.

[0093] In the above embodiment, the door 30 was configured to open away from the buffer area A1 (first area) when rotated from the first closed position to the open position, but for example, the door may be configured to open toward the first area when rotated from the first closed position to the open position.

[0094] In the above embodiment, the angle between the first frame body 10 and the second frame body 20 is 90 degrees when the door system 1 is viewed from above, but for example, the angle between the first frame body and the second frame body may be greater than 90 degrees or less than 90 degrees. The angle between the first frame body and the second frame body does not have to be 90 degrees.

[0095] In the above embodiment, the second frame body 20 is located to the right of the first frame body 10 when viewed from the worker area A2, but for example, the second frame body may be located to the left of the first frame body. In other words, the door system may have a configuration symmetrical to the door system 1 of the above embodiment.

[0096] In the above embodiment, an example has been described in which the door system 1 is installed in a factory, but the door system may be installed in a place other than a factory.

[0097] The elements described in the above embodiment and modified examples may be implemented in any combination. [Explanation of symbols]

[0098] 1 Door System 10 First frame 11 First opening 20 Second frame 21 Second opening 30 Door 40 Door support member 50 Rail 51 Upper rail 60 1st wheel 61 Upper Wheel 70 2nd wheel 80 3rd wheel 90 Sensors 100 Control section A1 Buffer Area A2 Worker Area A3 Equipment Area DS Trolley FL floor RT Robot Hand

Claims

1. a first frame having a first opening; a second frame body having a second opening that opens in a direction different from the first opening, the second frame body being adjacent to the first frame body; It is a door, the locking mechanism is rotatable with respect to the first frame between a first closing position in which the first opening is closed and the second opening is opened, and an opening position in which the first opening is opened and the second opening is opened, and, and a door that is slidable along the second frame between the open position and a second closed position that opens the first opening and closes the second opening.

2. The door system according to claim 1, wherein the door opens in a direction opposite to the first area formed between the first frame body and the second frame body when the door rotates from the first closed position to the open position.

3. a door support member that rotatably supports the door so that the door can rotate between the first closed position and the open position; 3. The door system of claim 2, further comprising: a rail that slidably supports the door support member such that the door is slidable between the open position and the second closed position.

4. 4. The door system according to claim 3, further comprising a first wheel provided on the door support member, the first wheel contacting and rolling on the rail when the door slides between the open position and the second closed position.

5. The rail includes an upper rail provided on an upper portion of the second frame, The first wheel includes an upper wheel provided on an upper portion of the door support member, The door system according to claim 4, wherein the door support member is suspended from the upper rail by the upper wheel being supported by the upper rail.

6. The door system according to claim 5, further comprising a second wheel provided on an upper portion of the door, the second wheel contacting and rolling on the upper rail when sliding between the open position and the second closed position.

7. 3. The door system according to claim 2, further comprising a third wheel provided at a lower portion of the door, the third wheel being in contact with a floor and rolling when the door rotates between the first closed position and the open position.

8. The first opening communicates the first area with a second area in the factory where workers work, The door system according to any one of claims 2 to 7, characterized in that the second opening connects the first area to a third area in a factory separated from the second area, where machinery and equipment are operated.

9. A sensor for detecting the position of the door; A control unit, The door system according to claim 8, wherein the control unit permits operation of the mechanical equipment when the sensor detects that the door is in the first closed position.

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