A lifting door with a watertight structure, and a mechanical parking system using the same.

Abstract

The objective is to provide a lift-up door that also functions as a flood barrier to stop water from entering and exiting during floods or other similar events. [Solution] The water-sealing section 67 has a support member 66 that is fixed in watertight contact with the three-sided frame 2 to a fixing section 52 that supports the lifting door 12, a groove member 32 that is provided in a notch 31 formed in the sill 3, and a water-sealing member 100 is fixed to the support member 66 and the groove member 32 toward the back surface of the door 41, and a water-sealing plate 41B against which the water-sealing member 100 is pressed, and a pressed section 7 that moves the door 41 toward the back surface of the door 41 and presses the water-sealing plate 41B against the water-sealing member 100, and has a pressing drive section 6 provided on the fixing section 52 that moves the pressed section 7 toward the back surface of the door 41, and the pressing member 64 of the pressing drive section 6 acts on the pressed section 7 and moves the door 41 toward the back surface of the door 41, thereby pressing the water-sealing member 100 against the water-sealing plate 41B and sealing it.

Description

[Technical Field]

[0001] The present invention relates to a lifting door having a water-stop structure and a mechanical parking device using the same. [Background Art]

[0002] Patent Document 1 discloses a water-stop door comprising: an annular frame body having an opening at the center side; a door body that rotates within the frame body to open and close the opening; a frame-side water-stop member annularly attached to the frame body, wherein the door body is moved from a closed position where the opening is substantially closed to a water-stop position where the door body is pressed against the frame-side water-stop member to elastically deform the frame-side water-stop member by a predetermined amount; the water-stop door includes an engagement member supported by a base on the outer surface of the door body and rotating outside the door body, and a cam inclined surface that is in sliding contact with the distal end side of the engagement member at a portion other than the door body to move the door body toward the water-stop position, and the base is fixed to the outer surface of the door body without penetrating therethrough.

[0003] Patent Document 2 discloses a sliding-door type water-stop device that stops water at an entrance and exit by means of a water-stop door, a guide groove, a guide post and a door stop post, wherein the water-stop door has a door water-stop portion on the back side of a water pressure surface, and has a plurality of universal rollers and a plurality of rollers at the lower bottom portion; the guide groove has a groove water-stop portion that is in close contact with the door water-stop portion when water is stopped, a substantially horizontal sliding surface on which the universal rollers contact the ground and move, and a rail portion that guides the rollers in the vertical direction with no load, the rail portion forms a guide recess that allows the water-stop door to move freely in the water pressure direction at the water-stop position of the water-stop door; the guide post has a guide water-stop portion that is in close contact with the door water-stop portion when water is stopped, and a support portion that prevents the water-stop door from tilting; the door stop post has a door stop water-stop portion that is in close contact with the door water-stop portion when water is stopped. [Prior Art Document] [Patent Document]

[0004] [Patent Document 1] Japanese Unexamined Patent Application Publication No. 2021-036125 [Patent Document 2] Patent No. 6289721 [Overview of the project] [Problems that the invention aims to solve]

[0005] However, the water-stopping door described in Patent Document 1 has a structure in which water is stopped by manually rotating an engaging member 41 between a double-hinged main door 22 and a smaller door 21, and does not have a structure that can accommodate a door that moves up and down. Multiple levers 36 etc. are provided at various points on the main door 22 and the smaller door 21 to press the main door 22 and the smaller door 21 together, and does not have a water-stopping structure that can accommodate a door that moves up and down.

[0006] Furthermore, the sliding door type water-stopping device described in Patent Document 2 has a complex structure in which multiple locking mechanisms 11a and 11b are arranged on the left and right edges of the water pressure surface 10 of the sliding door type water-stopping door 2, and multiple locking mechanisms 11c are also arranged on the lower edge. These locking mechanisms 11 stop the water by manually rotating the gripping part 12, and do not have a water-stopping structure that corresponds to a lifting door.

[0007] The present invention aims to provide a lifting door that has a moving element capable of withstanding water pressure on the lifting door and a water-sealing structure that exhibits water-sealing performance with a simple structure. [Means for solving the problem]

[0008] A lifting door having a watertight structure according to the first embodiment has at least two lifting doors that can be opened and closed vertically relative to a three-sided frame and a sill, and a watertight structure is provided on the lower door of the lifting door, wherein the watertight structure includes a support member provided on a fixing part that supports the lifting door up and down, which is fixed in watertight contact with the three-sided frame, a groove member provided in a notch formed in the sill, and a watertight member provided on the support member and the groove member toward the back surface of the door The door is fixed and has a water-stopping plate on its back surface against which the water-stopping member is pressed, and a pressing portion that moves the door to the back side of the door and presses the water-stopping plate against the water-stopping member. The fixed portion has a pressing drive unit that moves the pressing portion to the back side of the door, and the pressing member of the pressing drive unit acts on the pressing portion to move the door to the back side of the door, thereby pressing the water-stopping member against the water-stopping plate and sealing it.

[0009] A lifting door having a watertight structure according to the second embodiment is a lifting door having a watertight structure according to the first embodiment, wherein the pressing drive unit comprises a drive source, a rotating shaft extending from the drive source, a gear fixed to the rotating shaft, and a pressing member that meshes with the gear and moves forward and backward relative to the pressed portion by the rotation of the gear, thereby advancing the pressing member relative to the pressed portion and pressing the door against the watertight member.

[0010] A lifting door having a watertight structure according to the third embodiment is a lifting door having a watertight structure according to the first or second embodiment, wherein the door has movable parts provided on both sides of the door and is supported so as to be movable in the front-to-back direction of the door with respect to the support member, the movable parts are provided so as to be movable with respect to guide rods installed on the door along the front-to-back direction and have a biasing member that biases the movable parts toward the back side of the door and is slidably supported by a guide rail provided on the fixed part.

[0011] The lifting door having a watertight structure according to the fourth embodiment is a lifting door having a watertight structure according to the first or second embodiment, wherein the push-and-drive unit is provided at two locations at the widthwise end of the door.

[0012] The lifting door having a watertight structure according to the fifth embodiment is a lifting door having a watertight structure according to the first or second embodiment, wherein the push-and-drive unit acts on the door at least at two locations in the vertical direction.

[0013] The mechanical parking system according to the sixth embodiment comprises a passenger compartment through which a vehicle moves in and out, a storage compartment through which the vehicle moves between the passenger compartment and the storage compartment, and a lifting door having a watertight structure according to the first or second embodiment, which is installed at the entrance to the passenger compartment. [Effects of the Invention]

[0014] According to the first embodiment of the lifting door with a watertight structure, the watertight function of the lifting door can be ensured with simpler operation compared to a door with a watertight function that is operated manually. Furthermore, by configuring the first door 41 to be pressed in the direction of the door depth D of the entrance 1, that is, in the direction toward the inside of the entrance 1, in the event of a flood, the water pressure of the water will cause the watertight part 67 to be more firmly sealed, thereby preventing water from entering.

[0015] According to the lifting door with a water-stopping structure of the second embodiment, a reliable water-stopping function can be achieved at a low cost by having a push-type drive unit with a simple structure, compared to a manual water-stopping function with a complex structure.

[0016] According to the third embodiment of the lifting door with a watertight structure, compared to those with a complex structure in the door's moving part, the operation of the push-and-drive unit can be handled with fewer parts, contributing to cost reduction.

[0017] According to the fourth embodiment, the lifting door with a water-stopping structure contributes to cost reduction by having fewer push-and-drive units compared to a door with a water-stopping mechanism on one side.

[0018] According to the fifth embodiment, the lifting door with a water-stopping structure contributes to cost reduction by having fewer push-and-drive units compared to a door with only one water-stopping mechanism.

[0019] According to the mechanical parking apparatus according to the sixth aspect, by providing a lifting door having a water stop structure with a simple structure compared to those having double swing doors or sliding doors with a complicated water stop structure, water intrusion into the mechanical parking apparatus can be prevented. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] [Figure 1] It is a front view showing an entrance / exit including a lifting door according to an embodiment of the present invention. [Figure 2] It is a rear view showing an entrance / exit including a lifting door according to an embodiment of the present invention. [Figure 3] It is a partial cross-sectional plan view showing an entrance / exit including a lifting door according to an embodiment of the present invention. [Figure 4] It is a partial cross-sectional side view showing an entrance / exit including a lifting door according to an embodiment of the present invention. [Figure 5] It is a perspective view showing a state before operation of a pressing drive unit of a lifting door according to an embodiment of the present invention, viewed from the rear side of the door. [Figure 6] It is a perspective view showing a state in operation of a pressing drive unit of a lifting door according to an embodiment of the present invention, viewed from the rear side of the door. [Figure 7] It is a plan view showing a state before operation of a pressing drive unit of a lifting door according to an embodiment of the present invention. [Figure 8] It is a plan view showing a state in operation of a pressing drive unit of a lifting door according to an embodiment of the present invention. [Figure 9] It is a side view showing a relationship between a first door of a lifting door and a water stop part according to an embodiment of the present invention. [Figure 10] It is an enlarged side view showing a state where the first door according to an embodiment of the present invention is descending toward a threshold. [Figure 11] It is an enlarged side view showing a state where the first door according to an embodiment of the present invention descends toward a threshold and stops. [Figure 12] It is an enlarged side view showing a state where the first door according to an embodiment of the present invention is in close contact with a water stop member. [Figure 13] It is a cross-sectional view showing a water stop member according to an embodiment of the present invention. [Modes for carrying out the invention]

[0021] [Embodiment] An example of a lifting door with a watertight structure according to this embodiment, and a mechanical parking system using the same, will be described with reference to the drawings. In the diagram, arrow W indicates the door width direction, arrow D indicates the door depth direction, and arrow H indicates the door height direction. The door width direction W may also be referred to as the horizontal direction or the direction in which the door closes, the part viewed from the side in the door depth direction W may be referred to as the front surface, or the part viewed from the opposite side may be referred to as the back surface or rear, the door height direction H may also be referred to as the up and down direction, the direction in which the door opens, or the top or upward, the view from the top may be referred to as the plan view, or the opposite direction of the door height direction H may be referred to as the bottom or downward. The direction opposite to the door height direction H (upward) may also be referred to as the closing direction. In addition, the drawing uses hatching to emphasize the water-stopping members, while hatching is omitted for other parts.

[0022] <Overall configuration of the lifting door> As shown in Figures 1 to 4, the lift-up door 12 having a watertight structure according to this embodiment is configured as an automatic door, for example, and the lift-up door 12 is installed at an entrance 1. Specifically, a three-sided frame 2 and a sill 3 are fixed to the opening of the building structure 1A of the entrance 1, and multiple doors are installed on the three-sided frame 2 and the sill 3 so as to be able to open and close vertically, suspended from a suspension part 51 by a chain 53 along the door height direction H. In this embodiment, the multiple doors will be described as three. The three-sided frame 2 is composed of an upper frame 21 that extends along the door width direction W at the upper part of the door height direction H, and a pair of vertical frames 22 that are connected to both ends of the upper frame 21 in the door width direction W and extend downward along the door height direction H. Below the door height direction H of the three-sided frame 2, a sill 3 is provided, which is connected to the pair of vertical frames 22 and extends along the door width direction W. As a result, the opening of entrance 1 is closed off by the three-sided frame 2, the threshold 3, and the three doors.

[0023] The lifting door 12 is provided with a drive unit 5 that opens and closes the door along the door width direction W on the side of the three-sided frame 2 in the door depth direction D and on the back surface of the building structure 1A. As shown in Figure 2, the drive unit 5 is provided on the outer circumference of the three-sided frame 2, with column members 52 rising along the door height direction H on both sides in the door width direction W, and a suspension unit 51 that can raise and lower three doors is provided on the upper part of the column members 52 along the door width direction W, and the three doors are slidably suspended from a guide rail 54 (see Figure 7) provided along the column members 52. The three doors are designated as the first door 41, the second door 42, and the third door 43, in order from the bottom door. Here, the column member 52 is an example of a "fixed part", and the first door is an example of a "lower door".

[0024] [door] As shown in Figure 1, the lifting door 12 is described in this embodiment as a three-panel lifting door, with the first door 41, the second door 42, and the third door 43 provided from the bottom in the door height direction H. When the three doors are opened, they open upward so that they are hidden by the upper part of the structure 1A in the door height direction H. This state is partially shown by dashed lines in Figure 2.

[0025] Furthermore, as shown in Figures 3 and 5, water-stopping plates 41B constituting a water-stopping section 67 are provided along the door height direction H on both sides of the door width direction W on the back of the first door 41. Also, on the back of the first door 41, a frame member 41A as shown in Figure 9 is provided along the door width direction W, and as shown in Figures 5 and 7, a pair of pressing sections 7 are provided at intervals along the door height direction H. In addition, as shown in Figure 4, a safety edge 46 is provided on the lower back of the first door 41. The safety edge 46 has the function of detecting obstacles such as people or luggage when the lifting door 12 is being raised or lowered, and sending an obstacle detection signal to the drive unit 5 of the lifting door 12, thereby stopping or reversing the lifting door 12.

[0026] [Three-sided frame] As shown in Figure 1, the three-sided frame 2 consists of a pair of vertical frames 22 that rise at intervals along the door height direction H, and an upper frame 21 that is fixed horizontally above the vertical frames 22. The pair of vertical frames 22 of the three-sided frame 2 are formed in a stepped shape as shown in Figure 4, with the width being wider towards the door depth direction D on the side of the first door 41 in the door height direction H, and narrower towards the door depth direction D on the side of the third door 43. The three-sided frame 2 is fixed to the building structure 1A, and the gap between it and the building structure 1A is sealed with a finishing member 23.

[0027] Furthermore, as shown in Figure 3, the vertical frame 22 of the three-sided frame 2 has a bracket bent toward the door width direction W at the end in the door depth direction D, and a column member 52 is fixed to this bracket. This column member 52 is fixed in watertight contact with the three-sided frame 2, but it may also be fixed to the back surface of the building structure 1A. Three of the aforementioned guide rails 54 are installed, one for each of the three doors.

[0028] Furthermore, as shown in Figures 3 and 4, the upper frame 21 and the pair of vertical frames 22 of the three-sided frame 2 are watertightly in contact and fixed to the opening of the building structure 1A by the finishing member 23. Also, as shown in Figures 2 and 3, a support member 66 extends from the back of the column member 52, which is watertightly connected to the vertical frame 22, in a direction along the back of the first door 41 on both sides of the back of the first door 41. A watertight section 67 is formed by fixing a watertight member 100 to the side of the support member 66 facing the first door 41 in a direction along the door height direction H of the first door. Details of the watertight section 67 and the watertight member 100 will be described later.

[0029] [threshold] As shown in Figures 4 and 10, the threshold 3 is embedded flush with the floor level L of the building structure 1A, and its upper surface is formed flat. It has a notch 31 in a position corresponding to the rear side of the first door, and below this notch 31, there is a groove member 32 formed in an upward concave shape that is in watertight contact and fixed to the notch 31 of the threshold 3. A watertight section 67 is formed on the vertical surface of the groove member 32 on the side in the door depth direction D, to which a watertight member 100 is fixed.

[0030] <Structure of the main parts> Next, the water-stopping structure according to this embodiment will be described with reference to Figures 5 to 12.

[0031] [Pressing drive unit] Figures 5 to 8 show the relationship between the first door 41 and the pressing drive unit 6, which presses the first door 41 against the water-stopping section 67. As shown in Figures 5 and 7, brackets 61A and 61B are fixed to the column member 52 at intervals along the door height direction H. A motor 61 is fixed to bracket 61A, and the rotation shaft 62 of the motor 61 is rotatably provided between brackets 61A and 61B along the device height direction H. Two gears 63, 63, which mesh with the respective rack sections 64A of two pressing members 64, 64 (described later), are fixed to the upper and lower parts of the rotation shaft 62. Here, the motor 61 is an example of a "drive source".

[0032] (Pressing member and pressed part) As shown in Figures 5 to 8, a pair of pressing members 64 are provided above and below the first door 41. The pressing member 64 has a rack portion 64A that protrudes outward in the device width direction W of the main body of the pressing member 64, that is, to the rear side of the main body of the pressing member 64, and the end of the main body in the device width direction W has a tapered portion 64B that is formed to taper toward the device width direction W. As shown in Figure 7, the pressing member 64 is assembled to slide left and right in the door width direction W while fitted into a groove (not shown) of a guide member 66A provided on the back of a support member 66 fixed to a column member 52.

[0033] On the other hand, on the side of the first door 41, a pressing portion 7 is provided on the back surface of the first door 41. As shown in Figure 7, in this embodiment, as an example, the pressing portion 7 is formed in an L-shape in plan view, and in the portion formed parallel to the back surface of the first door 41, a tapered portion 71 is formed on the side facing the back surface of the first door 41 into which the tapered portion 64B of the pressing member 64 fits.

[0034] Furthermore, as shown in Figure 7, movable parts 8 are provided at both ends of the first door 41. The movable parts 8 allow the first door 41 to move in a direction along the depth direction D of the device with respect to a guide rail 54 fixed to a column member 52. Specifically, the movable part 8 has two support members 41C, 41C fixed at the ends of the first door 41 at a distance from each other in a direction along the door depth direction D, and a guide rod 81 is fixed between these support members 41C in a direction along the door depth direction D. The guide rod 81 is provided so that the movable part 8 can slide in a direction along the door depth direction D, and is also provided so that it can slide in a direction along the door height direction H with respect to the guide rail 54. A spring 82 is provided on the guide rod 81, one end of which is in contact with the support member 41C located on the front side of the first door 41, and the other end of which is biased toward the rear side in the door depth direction D. In this embodiment, the spring 82 is a coil spring and functions by being fitted around the outer circumference of the guide rod 81. Here, the spring 82 is an example of a "biasing member".

[0035] (Water-stopping section) As shown in Figure 7, a water-stopping member 100 is fixed to the end of a support member 66, which is provided on a column member 52 fixed to the vertical frame 22 of the three-sided frame 2, in a direction along the door height direction H, and facing the first door 41. In addition, water-stopping plates 41B are fixed to the back surfaces of both ends of the first door 41, facing the water-stopping member 100. The water-stopping member 100 and the water-stopping plates 41B make watertight contact, forming a water-stopping section 67. During the normal opening and closing operation of the lifting door 12, the water-stopping member 100 and the water-stopping plates 41B are separated.

[0036] Furthermore, as shown in Figures 9 to 11, the water-stopping member 100 is in close contact with the support member 66 and is fixed parallel to the groove member 32 provided in the notch 31 of the sill 3. Specifically, the water-stopping member 100 is fixed to the vertical surface of the groove member 32 on the side in the door depth direction D, and a water-stopping portion 67 is also formed on the sill 3. On this side of the sill 3 as well, during the normal opening and closing operation of the lifting door 12, the water-stopping member 100 is separated from the water-stopping plate 41B, and in particular from the lower part 41B1 that connects the water-stopping plates 41B provided at both ends of the first door 41.

[0037] (Water-stopping component) Figure 13 shows a cross-section of the water-stopping member 100. The water-stopping member 100 has a base portion 101, an elastic projection portion 103, and groove portions 102 on both sides sandwiched between the base portion 101 and the elastic projection portion 103. When the groove portion 102 is fixed to the support member 66, which is a component for forming the water-stopping portion 67, both groove portions 102 in the width direction are fixed (see Figures 7 and 8), and when it is fixed to the groove member 32 of the sill 3, at least one groove portion 102 in the width direction is fixed (see Figures 10 and 11). In either case, the base portion 101 may be fixed using an adhesive material on its back surface. In this embodiment, the water-stopping member 100 uses a silicone rubber packing.

[0038] <Function of key parts> Here, we will explain the function of the main components with reference to the diagrams.

[0039] As shown in Figures 5 and 7, when the door is opened or closed, the push drive unit 6 is in a position where the push member 64 is retracted from the push section 7. When the door is closed and a predetermined water-stopping command is issued, as shown in Figures 6 and 8, the push drive unit 6 is activated, and the rotation of the motor 61 rotates the rotating shaft 62, causing the gear 63 fixed to the rotating shaft 62 to rotate. As a result, the rack portion 64A of the push member 64, which is meshed with the gear 63, is moved in the direction of arrow A (pressing direction), and the tapered portion 64B of the push member 64 enters the tapered portion 71 of the push section 7, causing the first door 41 to move in the direction of arrow B (movement direction), that is, in the direction of the door depth D. As a result, the water-stopping plate 41B of the first door 41 and the water-stopping member 100 are brought into close contact at the water-stopping section 67, forming a watertight state.

[0040] On the other hand, on the sill 3 side, as shown in Figure 9, the first door 41 closes all the way down, and the entire lift-up door 12 is closed. This operation is shown in Figures 10 and 11. Figure 10 shows the entire lift-up door 12 and the first door 41 moving in the direction of arrow C (downward direction), i.e., in the closing direction, and Figure 11 shows the entire lift-up door 12 and the first door 41 stopped in the closed position. At this time, the lower part 41B1 of the water-stopping plate 41B that connects the two water-stopping plates 41B fixed to both ends of the first door 41 enters the notch 31 of the three-sided frame 3 and enters and stops in the groove member 32 that is formed in an upward concave shape in the notch 31. At this time, the lower part 41B1 and the water-stopping member 100 are facing each other and separated.

[0041] From this state, when a predetermined water-stopping command is issued, as explained with reference to Figures 6 and 8, the pressing drive unit 6 is activated, the rotation of the motor 61 rotates the rotating shaft 62, and the gear 63 fixed to the rotating shaft 62 rotates. As a result, the rack portion 64A of the pressing member 64 meshed with the gear 63 is activated, and the tapered portion 64B of the pressing member 64 enters the tapered portion 71 of the pressing portion 7, causing the first door 41 to move in the direction of the door depth D. As a result, as shown in Figure 12, in the water-stopping portion 67, in synchronization with the movement in which the water-stopping plate 41B of the first door 41 and the water-stopping member 100 are brought into close contact, the lower part 41B1 of the water-stopping plate 41B moves in the direction of arrow B and is pressed watertightly against the water-stopping member 100, and a water-stopping portion 67 is formed on the sill 3 side as well.

[0042] In this way, in the first door 41, a watertight section 67 is formed on the side of the vertical frame 22 of the three-sided frame 2 on both the left and right sides of the first door 41 and on the side of the lower sill 3, thereby preventing floodwaters from entering the interior of the entrance 1 having the lifting door 12.

[0043] Here, the water shut-off command will be explained. The water shut-off command is a command to shut off the water from the lifting door 12. It comprises a transmitting unit that transmits information about the water shut-off command and a receiving unit that receives information about the water shut-off command. The receiving unit transmits the information it receives as a water shut-off signal to the push-drive unit 6, which drives the motor 61 to shut off the water from the water shut-off unit 67. To release the water shut-off state of the water shut-off unit 67, a water shut-off release command is transmitted to the push-drive unit 6. This water shut-off command may be transmitted using a manual switch (not shown) that allows selection between shutting off the water or releasing the water shut-off state, or it may be transmitted using a water level sensor (not shown) installed at the bottom of the sill 3 or the three-sided frame 2 or in their vicinity. The water level sensor detects flooding and sends a water shut-off command to the receiving unit. It monitors the water level at floor level L outside the entrance 1 and issues a water shut-off command when it detects that water is accumulating. Furthermore, flood warnings and the like can be received at the receiving unit using the internet or an emergency warning receiving system, and a water stop command can be issued to automatically shut off the water. The method of issuing an automatic water stop command is not limited to these methods.

[0044] Thus, the lifting door 12 having a watertight structure according to the present invention has at least two lifting doors 12 that can be opened and closed vertically relative to a three-sided frame 2 and a sill 3, and the lifting door 12 has a watertight structure in which a watertight part 67 is provided on the lower first door 41 of the lifting door 12, the watertight part 67 is provided on a column member 52 that supports the lifting door 12 in the vertical direction, a support member 66 that is fixed in watertight contact with the three-sided frame 2, a groove member 32 is provided in a notch 31 formed in the sill 3, and the support member 66 and the groove member 32 have a watertight part facing the back surface of the first door 41 The material 100 is fixed, and the back surface of the first door 41 is provided with a water-stopping plate 41B against which the water-stopping member 100 is pressed, and a pressing part 7 that moves the first door 41 to the back surface of the first door 41 and presses the water-stopping plate 41B against the water-stopping member 100. The column member 52 has a pressing drive unit 6 that moves the pressing part 7 to the back surface of the first door 41, and the pressing member 64 of the pressing drive unit 6 acts on the pressing part 7, moving the first door 41 to the back surface of the first door 41, thereby pressing the water-stopping member 100 against the water-stopping plate 41B and sealing it.

[0045] This eliminates the need for a separate flood barrier, and ensures the water-stopping function of the lifting door 12 with simpler operation compared to manually operating a door with a water-stopping function. Furthermore, by configuring the door 41 to be pressed in the direction of the door depth D of the entrance 1, that is, inward from the entrance 1, in the event of a flood, the water pressure will be applied to the water-stopping section 67, making it more firmly sealed and preventing water from entering.

[0046] Furthermore, the pressing drive unit 6 includes a motor 61, a rotating shaft 62 extending from the motor 61, a gear 63 fixed to the rotating shaft 62, and a pressing member 64 that meshes with the gear 63 and moves back and forth relative to the pressed portion 7 by the rotation of the gear 63. The pressing member 64 is advanced relative to the pressed portion 7 to press the first door 41 against the water-stopping member 100.

[0047] As a result, compared to manual water-stopping mechanisms with complex structures, the simple push-type drive unit 6 provides reliable and inexpensive water-stopping functionality.

[0048] Furthermore, the first door 41 has movable parts 8 provided on both sides of the first door 41, which are supported by the support member 66 so as to be movable in the front-to-back direction of the first door 41, and the movable parts 8 are provided so as to be movable with respect to guide rods 81 installed on the first door 41 along the front-to-back direction, and have a spring 82 that biases the movable parts 8 toward the back side of the first door 41, and are slidably supported by a guide rail 54 provided on the column member 52.

[0049] This allows the operation of the push-drive unit 6 to be handled with fewer parts compared to systems with complex structures in the door's moving parts, contributing to cost reduction.

[0050] Furthermore, the push-drive unit 6 is provided at two locations at the widthwise ends of the first door 41.

[0051] This allows for cost reduction by requiring fewer push-type drive units 6 compared to doors with a water stopper on one side.

[0052] Furthermore, the pressing drive unit 6 acts on the first door 41 at least two points in the vertical direction.

[0053] This allows for cost reduction by requiring fewer push-type drive units 6 compared to a door with a single water stopper.

[0054] Furthermore, the mechanical parking system includes an entry / exit compartment through which vehicles move in and out, a storage compartment through which vehicles are moved between the entry / exit compartment and the storage compartment, and a lifting door 12 having a watertight structure according to the first or second embodiment, which is installed at the entrance / exit 1 of the entry / exit compartment.

[0055] As a result, compared to systems with double doors or sliding doors that have complex water-sealing structures, the lift-up door 12 has a simpler water-sealing structure, which prevents water from entering the inside of the mechanical parking system.

[0056] Although one embodiment of the present invention has been described above with reference to the drawings, the present invention is not limited to this embodiment and includes modifications based on the spirit of the invention, and is of course not limited to the description of this embodiment.

[0057] For example, although it was explained that the support member 66 of the pressing drive unit 6 is attached to the column member 52, it is not limited to this and may also be fixed to the side of the building structure 1A to which the three-sided frame 2 is fixed.

[0058] Furthermore, although the water-stopping member 100 was explained using Figure 13, assuming the use of a silicone rubber packing, it is not limited to this, and other materials or shapes may be used as long as they have a water-stopping function.

[0059] Furthermore, although the lifting door 12 was described as a three-panel lifting type, it is not limited to this and may be a two-panel lifting type, a four-panel lifting type, etc. [Explanation of Symbols]

[0060] 1 Entrance / exit 1A frame 12 Lifting doors 2 Three-sided frame 21 Upper frame 22 Vertical frame 23 Finishing materials 3 Threshold 31 Notch 32 Groove member 41. First door (an example of a lower door) 41A Structural member 41B Water stop plate 41B1 Lower part 41C Support Member 42 Door 2 43 Door 3 46 Safety Edge 5 Drive Unit 51 Suspension section 52 Column member (an example of a fixing part) 53 chains 54 Guide rails 6 Pressing drive unit 61. Motor (an example of a drive source) 61A Bracket 61B Bracket 62 Rotation axis 63 gears 64 Pressing Member 64A Rack Section 64B Tapered section 66 Support Member 66A Guide member 67 Water-stopping section 7 Pressed part 71 Tapered section 8. Movable part 81 Guide rod 82. Spring (an example of a biasing member) 100 Water-stopping member 101 Base 102 Groove 103 Elastic protrusion L Floor level A. Pressing direction B Direction of movement C Downward direction

Claims

1. A lifting door having at least two lifting doors that can be opened and closed vertically relative to a three-sided frame and a threshold, and having a watertight structure in which a watertight part is provided on the lower of the lifting doors, The aforementioned water-stopping section is A support member is provided in the fixing part that supports the raising and lowering of the aforementioned lifting door, which is fixed in watertight contact with the three-sided frame, a groove member is provided in the notch formed in the sill, and a water-stopping member is fixed to the support member and the groove member toward the back surface of the door. The back surface of the door is provided with a water-stopping plate against which the water-stopping member is pressed, and a pressing portion that moves the door to the back surface of the door to press the water-stopping plate against the water-stopping member. The fixed portion is provided with a pressing drive unit that moves the pressed portion to the back side of the door, and the pressing member of the pressing drive unit acts on the pressed portion, moving the door to the back side of the door, thereby pressing the water-sealing member against the water-sealing plate and sealing it. A lifting door with a watertight structure.

2. The pressing drive unit comprises a drive source, a rotating shaft extending from the drive source, a gear fixed to the rotating shaft, and a pressing member that meshes with the gear and moves back and forth relative to the pressed portion by the rotation of the gear. A lifting door having a water-stopping structure according to claim 1, wherein the pressing member is advanced against the pressed portion, and the door is pressed against the water-stopping member.

3. The door has movable parts provided on both sides of the door and is supported by the support member so as to be movable in the front-to-back direction of the door. The lifting door having a watertight structure according to claim 1 or 2, wherein the movable part is provided so as to be movable with respect to a guide rod installed on the door in the front-to-back direction, and has a biasing member that biases the movable part toward the back side of the door, and is slidably supported by a guide rail provided on the fixed part.

4. The push-and-drive unit is provided at two locations at the widthwise end of the door, and the lifting door has a watertight structure according to claim 1 or 2.

5. The lifting door having a water-stopping structure according to claim 1 or 2, wherein the pressing drive unit acts on the door at least two locations in the vertical direction.

6. A mechanical parking system comprising: a passenger compartment through which a vehicle moves in and out; a storage compartment through which the vehicle moves between the passenger compartment and the storage compartment; and a lifting door having a watertight structure as described in claim 1 or 2, installed at the entrance to the passenger compartment.

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