JP6248247B1 - Smoke-proof structure and automatic door having the same - Google Patents

Abstract

An automatic door that exhibits high smoke shielding performance when the door is closed while maintaining the plurality of doors to move up and down at high speed. The smoke-proof structure of an automatic door includes a sliding body that is fitted to a door rail for moving the door material of the automatic door in the vertical direction, one end connected to the sliding body so as to be movable in the front-rear direction, and the other end A support member fixed to the side surface of the door material and provided with a protrusion on the rear surface, and attached to the rear side of the door rail so as to push the protrusion forward when the support member passes a predetermined position. And when the automatic door is closed, the protruding portion is pushed by the cam, and the door material is pressed so as to close a gap with the frame material of the automatic door. . [Selection] Figure 1

Description

  The present invention relates to an automatic door having a structure for blocking smoke when a fire occurs.

  In places where commercial facilities are concentrated such as in front of the station, multi-storey parking lots may be provided in stores and hotels. In the case of a mechanical multistory parking lot, a car parked at a predetermined position is automatically transported to the garage, but the automatic door is closed so that subsequent cars cannot enter the position until the transporting operation is completed. If an automatic door is a type that opens and closes sideways, it takes time until the door is fully opened, so there are also automatic doors that open and close quickly. In multistory parking lots, fire prevention equipment with high smoke shielding performance is necessary so that smoke does not leak outside in the event of a fire. As described in Patent Document 1, an invention relating to a smoke-shielding shutter when opening and closing up and down is also disclosed.

Japanese Patent No. 3909472

  If there are many users of multistory parking lots, there is a possibility that the procession extends beyond the facility site to the general road. Although it is necessary to speed up the transportation operation to the garage, there are not a few cases in which even if an automatic door opens and closes up and down quickly, the vehicle comes into contact with the automatic door trying to enter the position before it is fully opened. For this reason, there is an automatic door that can be opened and closed at a higher speed by dividing it into a plurality of door materials and interlocking them. However, in order to move a plurality of door materials at a high speed, if the door materials are separated so as not to generate friction, the smoke shielding performance is impaired by the gaps.

  Therefore, an object of the present invention is to provide an automatic door that exhibits high smoke shielding performance when all the door materials are closed while maintaining the plurality of door materials to move up and down at high speed.

In order to solve the above-described problems, the smoke-proofing structure for an automatic door according to the present invention includes a sliding body that is fitted to a door rail for moving the door material of the automatic door in the vertical direction, and one end is movable in the front-rear direction. Connected to the sliding body, the other end is fixed to the side surface of the door material, a support member provided with a protrusion on the rear surface, and the protrusion is pushed forward when the support member passes a predetermined position And a cam attached to the rear side of the door rail, and when the automatic door is closed, the protrusion is pushed by the cam so that the door material closes a gap with the frame material of the automatic door. A smoke shielding structure for an automatic door that is pressed against the front plate, wherein the support member extends to the front surface to the sliding body and suppresses movement from the sliding body to the rear, and the support member and the sliding body. Back and forth Having an elastic member for adjusting the, characterized in that.

  The protruding portion is attached to a hollow portion formed inside the support member so that a rotating body with a horizontal axis as a shaft protrudes rearward, and the cam is pushed forward while the rotating body rolls. In this way, a slope is formed.

  Further, the support member extends to the front surface to the sliding body and suppresses the movement of the sliding plate to the rear, and an elastic body for aligning the position of the supporting member and the sliding body in the front-rear direction. And having.

  Further, the support member includes an upper support member fixed to an upper portion of the door material, and a lower support fixed to a lower portion of the door material by making the left and right positions of the protruding portions different from the upper support member. When the automatic door is closed, the door material is pressed so as to close a gap with the frame material at the upper part and the lower part.

  Furthermore, in the automatic door having the smoke shielding structure according to the present invention, the plurality of door materials movable in the vertical direction are arranged shifted in the front-rear direction, and the door material adjacent to the rear side of one door material is at the upper part thereof. The door body controlled to open and close so as to move at a higher speed than the one door material while maintaining the overlap in the front-rear direction with the one door material, and the frame material so as to surround the left and right and upper edges of the door body Is provided, and a door rail for moving each door material in the vertical direction is provided on the side of the door body, and a fully open storage area of the door body is provided above the upper frame material. When the door body is closed, the plurality of door materials are pressed so as to close the gap with the frame body and the gap with the adjacent door material, respectively.

  In addition, an airtight material is attached to a position where the frame body is pressed against the plurality of door materials and a position where the door material is pressed against an adjacent door material, and the door material closes a gap with the airtight material. It has the pressing tool for, It is characterized by the above-mentioned.

  According to the present invention, it is possible to provide an automatic door that exhibits high smoke shielding performance when the door is closed while maintaining the plurality of doors to move up and down at high speed. That is, since a plurality of door materials are interlocked, it can be opened / closed at a higher speed than a single door material, and the possibility that the vehicle contacts the door material can be greatly reduced. In addition, since a plurality of door materials and each door material and the frame material are sealed, it is possible to prevent smoke from leaking outside even if a fire occurs.

It is a front view which shows the whole external appearance of the automatic door which is this invention. It is a rear view which shows the whole external appearance of the automatic door which is this invention. It is the cross-sectional view which cut | disconnected the whole external appearance of the automatic door which is this invention by AA. It is the longitudinal cross-sectional view which cut | disconnected the whole external appearance of the automatic door which is this invention by BB. It is a perspective view which shows a part of back side of the automatic door which is this invention. It is a perspective view which shows a part of back side of the door material of the automatic door which is this invention. It is a perspective view which shows the back side of the guide shoe of the automatic door which is this invention. It is a front view which shows the guide shoe of the automatic door which is this invention. It is a top view which shows the guide shoe of the automatic door which is this invention. It is a left view which shows the guide shoe of the automatic door which is this invention. It is a rear view which shows the right door rail of the automatic door which is this invention. It is a left view which shows the right door rail of the automatic door which is this invention. It is a three-plane figure which shows the back side of the cam for right door rails of the automatic door which is this invention. It is a perspective view which shows the positional relationship of the guide shoe and cam of the automatic door which is this invention. It is the top view to which a part of frame was enlarged when the door of the automatic door which is the present invention was opened. It is the top view to which a part of frame was enlarged when the door of the automatic door which is the present invention was closed. It is a perspective view which shows the state which attached the airtight material to the frame of the automatic door which is this invention. It is a left view which shows the state which attached the airtight material to the door body of the automatic door which is this invention. It is an enlarged view which shows the airtight structure of the upper door material of the automatic door which is this invention. It is an enlarged view which shows the airtight structure of the middle door material of the automatic door which is this invention. It is an enlarged view which shows the airtight structure of the lower door material of the automatic door which is this invention. It is sectional drawing which cut | disconnected the airtight material of the automatic door which is this invention in the transversal direction.

  Embodiments of the present invention will be described below in detail with reference to the drawings. In addition, what has the same function attaches | subjects the same code | symbol, and may abbreviate | omit the repeated description.

  First, the automatic door according to the present invention will be described. The outside of the auto door such as outdoors is the front, the inside of the auto door such as indoors is the rear, the left side when viewed from the front is left, and the right side is right. Moreover, let the edge part which is the peripheral side away from the center part among plate surfaces and is not a side surface be an edge.

  FIG. 1 is a front view of the entire automatic door as viewed from the front side. FIG. 2 is a rear view of the entire automatic door as viewed from the rear side (the left side of the figure is the right side). FIG. 3 is a cross-sectional view taken along the line AA shown in FIG. FIG. 4 is a longitudinal sectional view taken along the line BB shown in FIG. 2 (the right side of the figure is the front). FIG. 5 is a perspective view of the automatic door as seen from the rear side (the right side of the figure is the left).

  As shown in FIG. 1, the automatic door 100 is installed at an entrance / exit such as a multilevel parking lot. The auto door 100 is an opening through which a vehicle passes, but may be an opening through which people and others pass. The automatic door 100 may be opened / closed by a switch, or may be automatically opened / closed by detecting by a sensor that a vehicle or the like has approached from the front side. The opening part of the automatic door 100 is supported by the frame body 200, and the door body 300 is provided so that opening and closing is possible.

  The frame body 200 is a three-way frame having an upper frame member 210 that supports the upper side of the opening, a left frame member 220 that supports the left side, and a right frame member 230 that supports the right side. A frame member may be provided on the lower side, but a door receiving member 240 for receiving the door body 300 may be provided on the lower side.

  The door body 300 is a three-door door that opens and closes in the vertical direction and includes an upper door member 310 that closes the upper part of the opening, an intermediate door member 320 that closes the middle part, and a lower door member 330 that closes the lower part. The door body 300 may be a single door, a two-door without the middle door material 320, or a plurality of middle door materials 320.

  As shown in FIG. 2, a storage area 250 is provided above the upper frame member 210 of the frame body 200 for holding the door body 300 in a suspended state when the automatic door 100 is opened. Further, a door rail 400 for moving the door body 300 in the vertical direction is disposed on the rear side of the left frame member 220 and the right frame member 230 of the frame body 200. The door rail 400 is provided such that a protrusion that protrudes toward the door body 300 extends in the vertical direction. In addition, a mechanism for opening and closing the automatic door 100 is provided.

  Each door 310, 320, 330 of the door 300 is connected to the drive chain 130, respectively. The drive chain 130 reaches the drive motor 110 via a pulley or the like, and a counterweight 120 is suspended from the tip. The door 300 is lowered by pulling up the counterweight 120 with the drive motor 110, and the door 300 is lifted by lowering the counterweight 120. Note that the moving direction of the door 300 may be reversed.

  A guide shoe 500 for fitting to the door rail 400 is provided on a side surface of the door body 300. For example, on the right side surface of the lower door material 330, the upper guide shoe 500a is attached to the upper side, and the lower guide shoe 500b is attached to the lower side. The same applies to the left side surface, and the same applies to the upper door material 310 and the middle door material 320.

  The door rail 400 is provided with a cam 600 in accordance with the position of the guide shoe 500 when the door 300 is lowered. For example, the upper cam 600a and the lower cam 600b are attached to the right door rail 400b at the positions of the upper guide shoe 500a and the lower guide shoe 500b of the lowered lower door material 330. The same applies to the upper door member 310 and the middle door member 320, and the same applies to the left door rail 400a.

  The door rail 400 indicates that when the door body 300 is pulled up, the door members 310, 320, 330 are gradually decelerated to reach a position to be decelerated in order to mitigate the impact when stopping in the storage area 250. A limit switch 140 is provided for sensing. Similarly, when the door body 300 is lowered, the door member 310, 320, 330 is gradually decelerated to sense that the vehicle has reached a decelerating position in order to mitigate the impact when stopping at the door support member 240. A limit switch 140 is provided.

  In addition, in the lower door material 330, in order to prevent pinching between the lower door material 330 and the door receiving material 240, the safety shoe 150 protrudes below the lower door material 330, and the safety shoe 150 is in contact with people and objects. Is detected, the lowering of the door 300 is stopped or the door 300 is raised.

  As shown in FIG. 3, the door body 300 is arranged side by side in the front and back, with the upper door material 310 on the front side, the middle door material 320 on the middle, and the lower door material 330 on the rear side. The left door rail 400 a is arranged on the left side of the door body 300 in accordance with the door materials 310, 320, 330, and the right door rail 400 b is arranged on the right side of the door body 300 in accordance with the door materials 310, 320, 330.

  Further, the left frame member 220 is disposed so as to be in contact with the left edge of each door member 310, 320, 330, and the right frame member 230 is disposed so as to be in contact with the right edge of each door member 310, 320, 330. . Note that the left door rail 400 a may be provided behind the left frame member 220, and the right door rail 400 b may be provided behind the right frame member 230.

  As shown in FIG. 4, the door rail 400 includes an upper door rail 410, a middle door rail 420, and a lower door rail 430 on the left door rail 400a and the right door rail 400b, respectively. The upper door rail 410 for moving the upper door material 310 up and down is disposed from the storage area 250 to the upper part of the opening, and the middle door rail 420 for moving the middle door material 320 up and down is located between the storage area 250 and the middle of the opening. The lower door rail 430 for moving the lower door material 330 up and down is disposed from the storage area 250 to the lower portion of the opening.

  The rear side of the left frame member 220 and the right frame member 230 is stepped in accordance with the position where the upper door member 310, the middle door member 320, and the lower door member 330 descend. When the door 300 is closed, the lower edge of the upper door member 310 and the upper edge of the middle door member 320 partially overlap each other, and the lower edge of the middle door member 320 and the upper edge of the lower door member 330 are identical. Overlapping the front and back. When the door body 300 is opened, the upper door member 310, the middle door member 320, and the lower door member 330 are suspended from the storage area 250 at the same height.

  As shown in FIG. 5, the upper door material 310, the middle door material 320, and the lower door material 330 are received by the left frame material 220, the right frame material 230, and the door support material 240, and the upper frame material 210, the left frame material 220, And the opening part of the automatic door 100 is closed by pressing against the right frame member 230. The upper door material 310, the middle door material 320, and the lower door material 330 have different movable ranges, but are opened and closed in conjunction with each other.

  For example, combining the drive chain 130 and the gear, the upper door material 310 is moved at a predetermined speed, the middle door material 320 is moved at a speed about twice that of the upper door material 310, and the lower door material 330 is moved to the upper door material 310. It is moved at about 3 times the speed. Compared with the case where one door is opened and closed at a predetermined speed, the time is reduced to about one third.

  Alternatively, the upper door member 310, the middle door member 320, and the lower door member 330 are moved at the same relative speed. The middle door member 320 has the same height as the upper door member 310 in the storage area 250, but the upper edge of the middle door member 320 is lowered from the position of the upper edge of the upper door member 310 in conjunction with the lowering of the upper door member 310. Move it to the edge position. The lower door material 330 is the same height as the middle door material 320 in the storage area 250, but the upper edge of the lower door material 330 is moved from the position of the upper edge of the middle door material 320 in conjunction with the lowering of the middle door material 320. Move to reach the position of the lower edge.

  Next, a guide shoe for giving the automatic door a smoke shielding function will be described. FIG. 6 is a perspective view of the door from the rear side (the right side of the figure is the left). FIG. 7 is a perspective view of the guide shoe attached to the left side surface of the door as seen from the rear side (the right side in the figure is the left). FIG. 8 is a front view of the guide shoe as viewed from the front side. FIG. 9 is a plan view showing the guide shoe from the upper side (the upper side in the drawing is the rear), (a) is a state when the automatic door is opened, and (b) is a state when the automatic door is closed. is there. FIG. 10 is a left side view of the guide shoe from the left side (the right side of the figure is the front).

  As shown in FIG. 6, the guide shoe 500 is attached to the left side surface and the right side surface of each door member 310, 320, 330 of the door body 300 in order to fit the door body 300 to the door rail 400. An upper guide shoe 500a is provided at the upper part of the side surface and a lower guide shoe 500b is provided at the lower part of the side surface in order to smoothly stabilize the vertical movement of the door materials 310, 320, 330.

  The guide shoe 500 has a protruding portion 540 that protrudes rearward from the back surface, but the protruding portion 540a of the upper guide shoe 500a and the protruding portion 540b of the lower guide shoe 500b are not at the same position in the vertical direction, It is provided at a position shifted to. The protrusion part 540 should just be attached so that the side peripheral surface of a ring-shaped body may come out partly rearward, for example.

  As shown in FIG. 7, the guide shoe 500 includes a sliding body 510, a support member 520, a connecting member 530, a protruding portion 540, and the like. In addition, it also has a front holding plate 550, an elastic body 590, and the like. In addition, the protrusion part 540 is comprised by the rotary body 560, the rotating shaft 570, the bearing 580, etc., for example. In addition, the guide shoe 500 attached to the right side surface of each door material 310,320,330 becomes a left-right symmetric shape.

  The sliding body 510 has a U-shaped cross section, and the door rail 400 is sandwiched on the left side where a gap is vertically formed, and a support member 520 is disposed on the opposite side. Since the sliding body 510 moves in the vertical direction along the door rail 400 with the U-shaped gap interposed therebetween, a resin that is resistant to friction is used. The support member 520 is a member separated from the sliding body 510 and is fixed to the side surfaces of the right doors 310, 320, and 330.

  The sliding body 510 and the support member 520 are connected by a connecting material 530. One end of the connecting member 530 is pivotally fastened to a vertical axis that passes through the sliding body 510, and the other end is pivotally fastened to a vertical axis that passes through the support member 520. Two connecting members 530 are attached to the front side and the rear side, and are further attached to both the upper side and the lower side.

  As shown in FIG. 8, when the support member 520 is provided with a hollow portion and the rotating body 560 is provided as the protruding portion 540, the rotating shaft 570 is extended in the left-right direction from the inner wall on the right side of the hollow portion, and the ring-shaped rotating body 560 is provided. The rotating shaft 570 is passed vertically through the center of the circle. In addition, by providing the rotating shaft 570 closer to the rear side, a part of the rotating body 560 protrudes rearward.

  The rotating body 560 may be fixed to the rotating shaft 570 so that the rotating shaft 570 rotates relative to the support member 520, or the rotating shaft 570 may be fixed to the support member 520 and rotated relative to the rotating shaft 570. You may do it. Even if the inside of the rotator 560 is hollow and the bearing 580 is interposed between the inner peripheral surface of the rotator 560 and the fixed rotation shaft 570, the friction when the rotator 560 rotates can be reduced. good.

  When providing the hollow portion, the connecting member 530 on the side attached to the support member 520 passes the vertical axis from the upper surface of the support member 520 to the inner wall on the upper side of the hollow portion, and from the lower inner wall to the support member. The lower surface of 520 may be passed through the vertical axis.

  As shown in FIG. 9A, the sliding body 510 and the support member 520 are usually aligned in a straight line in the left-right direction, and the position of the front surface and the position of the rear surface are not shifted back and forth. Here, with the position of the sliding body 510 fixed, the projection 540 is pushed forward, and the connecting member 530 is tilted forward and the support member 520 is not tilted, as shown in FIG. 9B. Move forward.

  When the pressing to the protruding portion 540 is released, the sliding body 510 and the support member 520 return their positions so as to be aligned. The sliding plate 510 is received by the front plate 550 so that the sliding member 510 does not move to a position before the support member 520 due to the momentum when returning. The front holding plate 550 is a plate material extending from the support member 520 to the slide body 510, but is attached to the front surface of the support member 520 and not attached to the front surface of the slide body 510.

  As shown in FIG. 10, an elastic body 590 such as a spring is interposed between the sliding body 510 and the supporting member 520 so that a force for returning the positions of the sliding body 510 and the supporting member 520 to a straight line is always applied. It ’s fine. It should be noted that the slide body 510 and the support member 520 may be returned to positions other than the elastic body 590, or a function different from that of the guide shoe 500 may be provided.

  When the plate-shaped member comes into contact with the rear side of the guide shoe 500 while the guide shoe 500 is moving in the vertical direction, the rotating body 560 rotates along the plate-shaped member. This reduces the friction and reduces the noise generated by wear and friction.

  Next, the cam for exhibiting the smoke shielding function of the automatic door by the guide shoe will be described. FIG. 11 is a rear view of the right frame member as viewed from the rear side (the right side of the figure is the left). FIG. 12 is a left side view of the right frame member viewed from the left side (the right side of the figure is the front). FIG. 13 is a plan view (upper view), a front view (middle view), and a side view (right view) of the cam attached to the right frame member as viewed from the rear side, (a) showing the upper cam, ) Indicates the lower cam. FIG. 14 is a perspective view of the arrangement of the guide shoe and the cam as viewed from the rear side (the right side of the figure is the left).

  As shown in FIG. 11, a cam 600 is attached to the door rail 400 according to the position of the guide shoe 500 when the door body 300 is lowered. The cam 600 for the right door rail 400b extends leftward from the right door rail 400b so as to come to the rear side of the guide shoe 500. An upper cam 600a is provided in accordance with the upper guide shoe 500a, and a lower cam 600b is provided in accordance with the lower guide shoe 500b. The same applies to the left door rail 400a.

  As shown in FIG. 12, the upper cam 600a and the lower cam 600b are provided on the upper door rail 410, the upper cam 600a and the lower cam 600b are provided on the middle door rail 420, the upper cam 600a and the lower cam 600b are provided on the lower door rail 430, and the left door rail. 400a and right door rail 400b. When the door materials 310, 320, and 330 are lowered, the upper guide shoe 500a and the upper cam 600a are positioned to overlap with each other, and the lower guide shoe 500b and the lower cam 600b are positioned to overlap with each other.

  As shown in FIG. 13A, the upper cam 600a is a plate material that matches the size of the guide shoe 500, and is formed with a receiving slope 610, a pushing slope 620, a pushing portion 630, a mounting portion 640, and the like. Note that the receiving inclination 610, the pushing inclination 620, and the pushing portion 630 correspond to positions through which the protruding portion 540 of the guide shoe 500 passes. A hole for fixing to the door rail 400 is made in the attachment portion 640, and a fastener is passed through.

  The receiving inclination 610 is recessed so as to incline from the front surface of the upper cam 600a toward the rear surface. The push slope 620 is projected from the receiving slope 610 to the front surface of the upper cam 600a. The extruding portion 630 is a place that is higher than the front surface of the upper cam 600a in which the bulge due to the push slope 620 is maintained.

  As shown in FIG. 13B, the lower cam 600b is also a plate material similar to the upper cam 600a. The receiving inclination 610, the pushing inclination 620, and the pushing section 630 of the lower cam 600b are formed in accordance with the shifting of the positions of the protruding portion 540a of the upper guide shoe 500a and the protruding portion 540b of the lower guide shoe 500b to the left and right. .

  As shown in FIG. 14, when the upper door member 310 moving along the door rail 400 is not lowered, the sliding member 510 and the support member 520 of the guide shoe 500 of the upper door member 310 are aligned in the left-right direction. When the upper door member 310 is further lowered, the sliding member 510 and the support member 520 of the guide shoe 500 do not contact the cam 600, but the protruding portion 540 contacts the receiving slope 610 of the cam 600.

  When the protrusion 540 is the rotating body 560, the support member 520 is pushed forward while rotating along the receiving inclination 610 and further rotating along the pushing inclination 620 and the pushing portion 630. Since the sliding body 510 is engaged with the door rail 400, it does not move back and forth. Therefore, the supporting member 520 moves forward, and the sliding body 510 and the supporting member 520 are displaced from each other back and forth. Further, the upper door member 310 to which the support member 520 is fixed also moves forward together with the support member 520.

  It should be noted that the upper guide shoe 500a and the upper cam 600a, and the lower guide shoe 500b and the lower cam 600b are left and right so that the lower guide shoe 500b that first passes through the upper cam 600a when lowered is not pushed forward by the upper cam 600a. The position is shifted. The upper guide shoe 500a and the lower guide shoe 500b are simultaneously pushed forward by the upper cam 600a and the lower cam 600b.

  Next, a mechanism for shielding the automatic door with the guide shoe and the cam will be described. FIG. 15 is an enlarged view of the door rail portion, and is a plan view (a lower side in the figure is a front side) showing a state where the smoke shielding function is not exhibited. FIG. 16 is an enlarged view of the door rail portion, and is a plan view showing a state where the smoke shielding function is exhibited (the lower side in the figure is the front).

  As shown in FIG. 15, in order to open and close the door body 300 at a high speed, when the three doors are made of the upper door material 310, the middle door material 320, and the lower door material 330, between the frame body 200 and the door body 300, and In order to reduce the friction between the doors 310, 320, and 330, it is necessary to secure a gap. Therefore, the airtight member 700 and the pressing tool 340a are attached so that a gap is secured when the door body 300 is moving, and the gap is closed when the door body 300 is closed.

  For example, the airtight member 700 may be attached to the left frame member 220, and the pressing tool 340a may be attached to each of the door members 310, 320, 330 or the support member 520 of the guide shoe 500 connected thereto. The pressing tool 340a may be a part of each door material 310, 320, 330 itself.

  As shown in FIG. 16, when the door body 300 is closed, the upper cam 600a and the lower cam 600b of the door rails 410, 420, and 430 are provided with the protruding portion 540a of the upper guide shoe 500a and the protruding portion 540b of the lower guide shoe 500b. Is pushed, and each door material 310, 320, 330 moves forward.

  The upper door member 310 is pressed against the left frame member 220, and the pressing tool 340 a of each door member 310 is pressed against the airtight member 700. Since the left frame member 220 is stepped, the pressing member 340a of the middle door member 320 and the lower door member 330 is also pressed against the airtight member 700 at the position where the middle door member 320 and the lower door member 330 are pressed.

  Next, an airtight material for effectively exhibiting the smoke shielding function of the automatic door will be described. FIG. 17 is a perspective view of the frame body to which the airtight material is attached as viewed from the rear side (the right side in the figure is the left). FIG. 18 is a left side view of the door body to which the airtight material is attached as viewed from the left side (the right side of the figure is the front). FIG. 19 is an enlarged view showing the airtight structure of the upper door member and the upper frame member (the right side of the figure is the front). FIG. 20 is an enlarged view showing the airtight structure of the intermediate part (the right side of the figure is the front), (a) is a view showing the airtight structure of the upper door material and the middle door material, and (b) is the middle door material. It is a figure which shows the airtight structure of a lower door material. FIG. 21 is an enlarged view showing the airtight structure of the lower door material and the door support material (the right side of the figure is the front). FIG. 22 is a cross-sectional view of the airtight material of the automatic door cut in the short direction.

  As shown in FIG. 17, the airtight member 700 is provided on the upper frame member 210, the left frame member 220, the right frame member 230, the upper door member 310, the middle door member 320, the lower door member 330, and the like. For example, in the case of the left frame member 220, since it is stepped in accordance with each door member 310, 320, 330, an airtight member 700 a arranged in the vertical direction to close the left edge of each door member 310, 320, 330, In order to block the lower surfaces of the door materials 310, 320, and 330, an airtight material 700b disposed in the front-rear direction may be used. In the case of the upper frame member 210, an airtight member 700c disposed in the left-right direction may be used to close the upper edge of the upper door member 310.

  As shown in FIG. 18, when the upper door 310, the middle door 320, and the lower door 330 are covered with the plate up to the front side and up and down, left and right sides, but the rear side is vacant, from the upper plate of the upper door 310 The pressing tool 340b is protruded toward the front. In addition, an airtight material 700d is disposed on the upper surface of the lower plate of the upper door material 310, and the pressing tool 340c protrudes forward from the upper plate of the middle door material 320. The airtight material 700d is disposed on the upper surface of the lower plate of the middle door member 320, and the pressing tool 340c protrudes forward from the upper plate of the lower door member 330. An airtight material 700e is disposed on the lower surface of the lower plate of the lower door material 330.

  As shown in FIG. 19, when the upper edge of the front surface of the upper door member 310 is pressed against the upper frame member 210 when the upper door member 310 is lowered, the pressing member 340 b of the upper door member 310 is sealed with the airtight member 700 c of the upper frame member 210. To touch. The pressing member 340b may come into contact with the rearward airtight material 700c while descending from above, and may be sealed by sliding it forward.

  As shown in FIG. 20A, when the upper edge of the middle door member 320 is pressed against the lower edge of the rear surface of the upper door member 310 when the middle door member 320 is lowered, the pressing member of the middle door member 320 is pressed. 340 c contacts the airtight material 700 d of the upper door material 310.

  As shown in FIG. 20 (b), when the lower door material 330 is lowered, if the upper edge of the front surface of the lower door material 330 is pressed against the lower edge of the rear surface of the middle door material 320, the pressing tool 340 c of the lower door material 330 is The airtight material 700d of the middle door material 320 is contacted. Even if the pressing tool 340c is applied to the upward airtight material 700d from the upper side and slid forward, the seal may be maintained.

  As shown in FIG. 21, when the lower door material 330 is lowered and the lower door material 330 is pressed against the door receiving material 240, the airtight material 700 e of the lower door material 330 comes into contact with the door receiving material 240. What is necessary is just to seal from the left end of the lower door material 330 to the right end with the downward airtight material 700e with respect to the upper surface of the door receiving material 240.

  As shown in FIG. 22, the airtight material 700 is packing or the like interposed between members for sealing so that fluid such as gas or liquid does not pass through, and receives metal members such as the frame body 200 and the door body 300. In order to seal the gap, a resin or the like is used. In addition, a heat-resistant material is used so that smoke can be blocked in a fire. The hermetic material 700 is a long tubular member having, for example, a curved surface 710, a hollow portion 720, a slit 730, and a mounting surface 740.

  The curved surface 710 is a portion that is curved outward in order to receive the metal member and close the gap. The hollow portion 720 is a portion that is hollowed in order to improve the elasticity of the curved surface 710. The slit 730 is a gap provided so that a fastener or the like can be easily passed when the attachment surface 740 and the frame body 200 are fixed. Moreover, since it is not necessary to pass a fastener etc. from on the curved surface 710, a fastener etc. do not hit when a metal member is received. The attachment surface 740 is a portion fixed to the frame body 200 or the like.

  Thus, it is possible to provide an automatic door that exhibits high smoke shielding performance when the door is closed while keeping the plurality of doors moving up and down at high speed. That is, since a plurality of door materials are interlocked, it can be opened / closed at a higher speed than a single door material, and the possibility that the vehicle contacts the door material can be greatly reduced. In addition, since a plurality of door materials and each door material and the frame material are sealed, it is possible to prevent smoke from leaking outside even if a fire occurs.

  As mentioned above, although the Example of this invention was described, it is not limited to these. The smoke-proof structure of the automatic door can be similarly applied to a single door, two doors, four or more door materials. Further, not only the upper door material at the front and the lower door material at the rear, but the same can be applied even if the overlapping direction is reversed.

  Further, a similar structure can be obtained by using a guide roller or the like instead of the guide shoe. Also for the rotating body, a spherical body or the like can be used instead of the ring-shaped body.

100: Automatic door 110: Drive motor 120: Counterweight 130: Drive chain 140: Limit switch 150: Safety shoe 200: Frame body 210: Upper frame material 220: Left frame material 230: Right frame material 240: Door support material 250: Storage Area 300: Door 310: Upper door material 320: Middle door material 330: Lower door material 340: Pressing tool 340a: Pressing tool 340b: Pressing tool 340c: Pressing tool 400: Door rail 400a: Left door rail 400b: Right door rail 410: Upper door rail 420: rail for middle door 430: rail for lower door 500: guide shoe 500a: upper guide shoe 500b: lower guide shoe 510: sliding body 520: support member 530: connecting material 540: protrusion 540a: protrusion 540b: protrusion 550 : Front plate 560: Rotating body 5 70: Rotating shaft 580: Bearing 590: Elastic body 600: Cam 600a: Upper cam 600b: Lower cam 610: Receiving inclination 620: Pushing inclination 630: Extruding part 640: Mounting part 700: Airtight material 700a: Airtight material 700b: Airtight material 700c: Airtight material 700d: Airtight material 700e: Airtight material 710: Curved surface 720: Hollow part 730: Slit 740: Mounting surface

Claims (5)

A sliding body fitted to a door rail for moving the door of the automatic door in the vertical direction;
One end is connected to the sliding body so as to be movable in the front-rear direction, the other end is fixed to a side surface of the door material, and a support member provided with a protrusion on the rear surface,
A cam attached to the rear side of the door rail so as to push the protrusion forward when the support member passes through a predetermined position;
When the automatic door is closed, the projecting portion is pressed by the cam, and the door door is pressed so as to close the gap with the frame material of the automatic door ,
The support member extends to the front surface to the sliding body and suppresses movement from the sliding body to the rear, an elastic body for aligning the position of the supporting member and the sliding body in the front-rear direction, Having
A smoke-proof structure for automatic doors. The protruding portion is attached to a hollow portion formed inside the support member so that a rotating body with the left-right direction as an axis protrudes backward,
The cam is inclined so that the rotating body is pushed forward while rolling.
The smoke barrier structure for an automatic door according to claim 1. The support member includes: an upper support member fixed to an upper portion of the door material; and a lower support member fixed to a lower portion of the door material with a left-right position of the protruding portion different from the upper support member; Have
When the automatic door is closed, the door is pressed to close the gap with the frame material at the upper and lower parts,
The smoke-proof structure of an automatic door according to claim 1 or 2 , wherein An automatic door having the smoke shielding structure according to any one of claims 1 to 3 ,
A plurality of the door materials movable in the vertical direction are arranged shifted in the front-rear direction, and the door material adjacent to the rear side of the one door material maintains an overlap in the front-rear direction with the one door material in the upper part thereof A door body that is controlled to open and close to move at a higher speed than the one door material,
The frame member is disposed so as to surround the left and right and upper edges of the door body, door rails for moving each door member in the vertical direction are provided on the side of the door body, and the door body is fully opened. A storage area having a frame provided above the upper frame member,
When the door body is closed, the plurality of door materials are pressed so as to close the gap between the frame body and the adjacent door material, respectively.
An automatic door characterized by that. An airtight material is attached to a position where the frame body is pressed against a plurality of the door materials, and a position where the door material is pressed against an adjacent door material, and the door material closes a gap with the airtight material. Having a pressing tool,
The automatic door according to claim 4 .

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