JP5294481B2 - Evacuation door for tunnel - Google Patents

Description

  The present invention belongs to the technical field of evacuation doors for tunnels for transportation such as roadways and railways.

In recent years, a space formed in a tunnel is formed into a circular shape, the circular tunnel space is divided up and down by a partition wall, and a main passage through which a vehicle passes and a side portion of the main passage are located on an upper portion of the partition wall. However, a structure has been proposed in which a rising body that is higher than the main passage is formed and an evacuation tunnel passage is formed in a lower portion of the partition wall. In such a tunnel, a notch portion is provided in a part of the rising body, and an entrance portion to a communication path following the evacuation tunnel passage is formed in a partition wall facing the notch portion, and the notch portion of the rising body is formed. In addition, a door body provided with an upper piece portion and a side piece portion following the rising body is slidably opened and closed so that the door body can be opened and evacuated from the evacuation exit to the evacuation passage side via the communication path. There is a known self-closed structure in which the opened door is automatically closed. However, since this door is composed of an upper piece and a side piece that follow the rising body, it is not only large, but also becomes heavy and requires a large number of components for self-closing. In addition, there is a problem that the cost is high and the door body is configured to be opened by manual operation. Improvement in sex is also desired.
Therefore, the applicant of the present invention provides a flip-up type outer door body in the notch portion formed in the rising body, and provides an escape port that leads to the escape passage in the partition wall facing the notch portion, A configuration was proposed in which an inner door body that opens and closes slidably along the partition wall is provided at the escape port. And in this thing, while configuring the outer door body so that it can be opened by operating the operation tool, the outer door body and the inner door body are connected by a connecting means, and the outer door body is in a fully open posture. The inner door body is configured to open in conjunction with the outer door body. When the outer door body is in the fully open position, the connection between the outer door body and the inner door body door is released, and the inner door body is provided. It is configured to automatically close by a self-closing device so that operability is excellent.

Japanese Patent Application No. 2007-335494

However, in the thing of the said application, the connection means provided between an outer side door body and an inner side door body is between the wire by which one end is connected with an outer side door body, the other end part of this wire, and an inner side door body. And an integrated means comprising a magnet receiver that is magnetically attached to the magnet, and the inner door body is in the fully open position before the outer door body is in the fully open position. It is comprised so that the magnetic attachment of a magnet and a magnet holder may be cancelled | released, and if the said magnetic attachment is cancelled | released, the wire will be in the state drooping naturally. For this reason, when the evacuation operation is completed and the outer door body is returned to the original state with the fully closed posture, the wire is allowed to hang naturally unless the magnet and the magnet holder are artificially magnetized. Thus, the outer door body and the inner door body are not linked, and the work of linking the outer door body and the inner door body becomes cumbersome and complicated, resulting in poor maintenance. .
Furthermore, in the thing of the said application, since the connection means is comprised with the wire by which the one end was connected with the outer side door body, the displacement amount of the wire based on the flip-up (opening rocking | fluctuation) of an outer side door body is made into inner side. Since the sliding displacement amount (open length) of the door body is used, there is a problem that it is difficult to ensure a large sliding displacement amount of the inner door body, and there are problems to be solved by the present invention.

The present invention has been created in order to solve these problems in view of the above circumstances, and the invention of claim 1 divides the tunnel up and down via a partition wall, In the tunnel in which the main passage and the rising body located on the side of the main passage and positioned higher than the main passage are formed on the upper side and the escape passage is formed below the partition wall, a part of the rising body is formed. Forming a notch and providing an outer door body that opens and closes the notch in a flip-up manner, while forming an evacuation port following the evacuation passage in the partition wall facing the notch and partitioning the evacuation port An inner door body that opens and closes slidably along the wall is provided, and when the connecting means is used to open the inner door body when the outer door body is opened, the connecting means is an outer door body. With the transformation to the fully open posture Releasing the joint, it is a tunnel for evacuation door is configured to restore the interlocking with the closing operation of the outer door member.
In the invention of claim 2, the linking means is provided with a power transmission mechanism for transferring the transfer body along the sliding direction of the inner door body based on the rotation of the swing support shaft constituting the outer door body. The tunnel evacuation door according to claim 1.
In the invention of claim 3, the power transmission mechanism is configured to increase the amount of transfer of the transfer body by increasing the rotation speed of the swing support shaft of the outer door body. It is an evacuation door.
In the invention of claim 4, the linking means is provided with an integrated means provided between the transfer body of the power transmission mechanism and the inner door body and engaged / disengaged with the opening / closing operation of the outer door body. Item 4. The tunnel evacuation door according to Item 2 or 3.
In the invention of claim 5, the inner door body is provided with a self-closing device, and the opened inner door body is configured to automatically close in the released state of the connecting means. The tunnel evacuation door according to any one of 1 to 4.

According to the invention of claim 1, the outer door body and the inner door body are disconnected by the connecting means by changing the outer door body to the fully open posture, and the inner door body is opened and closed even when the outer door body is open. Although it can be operated, it is possible to restore the linkage with the inner door body by performing an operation to transform the outer door body into a fully closed posture, and it is necessary to separately perform the restoration operation of the linking means It is excellent in maintainability and avoids forgetting to return the connecting means.
By setting it as invention of Claim 2, 3, the freedom degree of the stroke of the sliding movement of an inner side door body can be improved.
According to the invention of claim 4, the structure of the connecting means can be simplified.
According to the invention of claim 5, the outer door body can be opened to guide the refugee to the evacuation passage, but the inner door body does not remain open and the fire smoke is on the evacuation passage side. Can be prevented.

It is a schematic perspective view explaining the evacuation route provided in the tunnel. It is a perspective view explaining the evacuation route provided in the tunnel. It is a front view explaining the evacuation route provided in the tunnel. It is AA sectional drawing in FIG. It is BB sectional drawing in FIG. FIGS. 6A and 6B are a plan view and a front view, respectively, illustrating a state of connection between the outer door body and the inner door body in the fully closed posture. FIGS. 7A and 7B are a plan view and a front view, respectively, illustrating a state of connection between the outer door body and the inner door body in the fully opened posture. It is AA sectional drawing in FIG.6 (B). FIGS. 9A, 9B, 9C, and 9D are a plan view, a front view, a bottom view, and a side view, respectively, for explaining the chain case. It is a front view explaining the connection state of the outer side door body and inner side door body in 2nd embodiment.

Hereinafter, embodiments of the present invention will be described with reference to the drawings.
In the drawings, reference numeral 1 denotes a tunnel (tunnel), and the tunnel 1 is formed by piercing the ground into a circular shape and including an annular outer wall 2. The upper and lower layers are partitioned by a partition wall 3 facing in the horizontal direction. And the upper part of the partition wall 3 in the tunnel 1 is a space for traffic means such as vehicles and railways, and the central part of the partition wall 3 is a roadway (corresponding to the main passage of the present invention) 4. The rising bodies 5 are formed at the outer sides of the roadway 4 in the left-right direction.
On the other hand, the lower part of the partition wall 3 is formed with an evacuation passage 6 for passage when a person evacuates outside the tunnel 1 in the event of an emergency such as a fire. Each of the multipurpose passages 6b is partitioned by a partition wall 6a that is divided into upper and lower portions and can be used as appropriate, such as a wiring space for cables such as electric wires.

  As shown in FIGS. 1 and 2, the left and right rising bodies 5 extend from the vertical wall 5 a rising from the left and right side portions of the roadway 4 and the annular outer wall 2 constituting the tunnel 1 to the roadway 4 side. And a horizontal wall 5b. The rising body 5 is configured to function as a protective body for protecting the outer wall 2 from a vehicle passing through the roadway 4, but when the observer passes on the horizontal wall 5 b of the rising body 5. Also, it can be used as an inspection path for inspecting and repairing various facilities arranged in the tunnel 1, such as lighting equipment and ventilation devices, and monitoring road surface conditions.

Furthermore, a ground cover 4a that bulges upward from the running surface of the roadway 4 is formed on the road shoulders formed on the left and right side parts of the roadway 4 so as to be in contact with the lower ends of the vertical walls 5a of the left and right rising bodies 5, respectively. Has been.
The left and right rising bodies 5 are each formed with a notch 5c with an appropriate interval in the traveling direction of the roadway 4. As will be described later, these notch portions 5c constitute an entrance portion for evacuating from the upper roadway 4 in the tunnel 1 to the lower evacuation passage 6, and an entrance portion constituted by each notch portion 5c. Each of the doors is provided with an outer door 7 that can be freely opened and closed, and is configured such that the entrance (notch portion 5c) is closed in a normal state.
The notch portion 5c is cut out in a range longer than the length of the outer door body 7 in the running direction, and is cut out on both sides in the running direction of the portion that becomes the entrance portion and is closed by the outer door body 7. The notch 5c serves as a space for disposing member devices necessary for opening and closing both the outer door 7 provided at the entrance and the inner door 12 described later. These arrangement spaces are covered with a vertical body 5d and a horizontal body 5e formed along the vertical wall 5a and the horizontal wall 5b so as to function as the rising body 5, and thereafter, the vertical body 5d and the horizontal body 5e. The part to be covered will be described as the rising body 5, and the part that is not covered by the vertical body 5d and the horizontal body 5e, and the part that becomes the entrance to the escape passage 6 will be described as the notch 5c.

  As shown in FIGS. 4 and 5, the outer door body 7 is a frame in which a horizontal frame material 7 a facing in the horizontal direction and a vertical frame material 7 b facing in the vertical direction are framed in a fully closed position in which the notch 5 c is closed. By incorporating the face plate 7c, the vertical wall 5a of the rising body 5, the side piece portion 7d following the vertical body 5d, and the upper wall portion 7e following the horizontal wall 5b and horizontal body 5e are formed. Further, the outer door body 7 is formed with a ground cover equivalent piece portion 7f extending from the lower end edge of the side piece portion 7d to the roadway 4 side and continuing to the ground cover 4a formed on the side portion of the roadway 4. Thereby, it is formed in a substantially Z shape in a side view. A cylindrical rotating support shaft 7g is integrally fixed to the outer edge of the upper piece 7e of the door body 7 in the left-right direction, which is the edge on the outer wall 2 side of the tunnel 1. Both ends of the rotating spindle 7g in the cylinder axis direction (vehicle traveling direction) are rotatably supported by support pieces 7h that are integrally supported on the housing (partition wall 3 or outer wall 2) side. As a result, the outer door body 7 is configured in a flip-up manner that rotates and swings in the vertical direction around the axis of the rotation support shaft 7g as a center of rotation. The side piece 7d rises and closes the body cutout portion 5c, and the ground cover equivalent piece portion 7f is a fully closed posture adjacent to the ground cover 4a formed on the roadway 4, and an emergency posture, the upper piece portion 7e, the side piece 7d, and the ground cover equivalent piece 7f integrally move up (bounce up), the upper piece 7e approaches the tunnel outer wall 2, and the ground cover equivalent piece 7f faces upward. Then, it is configured to swing and change to a fully open posture in which the rising body notch 5c is opened.

Further, on the outer peripheral surface of the rotating support shaft 7g, an operating arm 7i that protrudes outward in the left-right direction (the tunnel outer wall 2 side) in the fully closed posture of the outer door body 7 is integrally fixed. The operating arm 7i is provided at a plurality of locations (four locations in the present embodiment) with a predetermined gap in the cylinder axis direction of the rotation support shaft 7g.
On the other hand, 8 is a weight body, and the weight body 8 is formed in an elongated shape in the cylinder axis direction (vehicle traveling direction) of the rotation support shaft 7g. As shown in FIG. Is pivotally connected via a pivot shaft 8a. Thereby, the total load of the weight body 8 is configured to act in the direction of moving the operating arm 7i downward, and the magnitude of the load moves up the outer door body 7 connected to the operating arm 7i. The size is set as possible.
In addition, 8b is a cover body provided so that the front of the weight body 8 may be covered.

  Reference numeral 9 denotes an opening / closing machine linked to the outer door body 7, and the opening / closing machine 9 is integrally fixed to the partition wall 3 on the one end side in the cylinder axis direction (traveling direction) of the rotation support shaft 7g. Has been. The opening / closing machine 9 is configured to include a speed control device and a brake device (not shown), and an output shaft 9a of the opening / closing machine 9 includes a plurality of sprockets 9b, a chain 9c, which are rotatably supported by the partition wall 3. It is linked to one end of a rotary spindle 7g via a power transmission mechanism (deceleration mechanism) comprising a rotary shaft 9d, and the output of the switch 9 is input to the rotary spindle 7g in a decelerated state. It is configured as follows. The outer door body 7 is set to be in a fully closed posture against the load of the weight body 8 in a normal use state, and in this state, the brake device of the switch 9 is activated. Thus, the rotation of the rotation support shaft 7g is restricted, and the fully closed posture of the outer door body 7 is maintained.

The opening / closing machine 9 is provided with a brake release lever 9e linked to the brake device, and the brake release lever 9e is provided on the vertical body 5d of the rising body 5 adjacent to the outer door body 7. 10 are connected. When an emergency evacuee operates the operation tool 10 in an emergency, the brake release lever 9e is configured to release the brake device. When the brake device is released, the rotation support shaft 7g is in a rotation restricted state. Thus, the operating arm 7i receives the load of the weight 8 and moves downward, so that the rotation support shaft 7g is rotated, and the outer door body 7 is moved up in a flip-up manner so that the notch portion 5c. Is configured to swing and change into a fully open position. At this time, the opening / closing device 9 functions as a speed control device and is provided with a speed reduction mechanism so that the outer door body 7 does not jump up suddenly and moves up at a suitable constant speed. It is configured.
As described above, the outer door body 7 is configured to be opened by the operation of the operation tool 10, but the release operation of the brake release lever 9e by the operation of the operation tool 10 is not performed electrically. Even if a power failure occurs due to a situation, the outer door body 7 can be opened.

On the other hand, the partition wall 3 exposed when the outer door body 7 is opened is formed in the stepped portion 3b through the stepped surface 3a so as to be lower than the road surface of the roadway 4, and the stepped portion 3b includes An evacuation port 3c communicating with a multipurpose passage 6b formed in a side portion of the evacuation passage 6 formed in a lower space of the tunnel 1 is cut out, and an evacuee evacuates from the multipurpose passage 6b into the evacuation port 3c. A communication path 11 serving as a means for moving to the passage 6 is provided. Incidentally, in the present embodiment, a slide formed in a curved shape along the annular outer wall 2 is installed as the communication path 11.
The notch position on the roadway side 4 is different between the one end side part 3d on the one end side in the traveling direction of the escape port 3c and the other end side part 3e on the other end side, and the other end part 3e protrudes further toward the roadway 4 side. It is cut out (extending). That is, the notch position on the side of the roadway 4 in the other end side part 3e is located on the side of the roadway 4 with respect to the side part 7d facing part of the outer door body 7 in the fully closed posture, and the escape port 3c is located on the outer door body. 7 extending to the portion covered by the ground cover equivalent piece 7f. Thus, a large space (evacuation space) above the evacuee moving on the connecting path 11 (slide) formed in a curved shape along the annular outer wall 2 is secured.

As shown in FIG. 5, the escape door 3 c is provided with an inner door body 12 that opens and closes the escape door 3 c so as to be slidable along the partition wall 3, and opens the inner door body 12. Thus, the communication path 11 can be accessed. As will be described later, the inner door body 12 is configured to be opened in conjunction with the opening operation of the outer door body 7. However, after the opening operation is performed, the inner door body 12 is automatically closed and While the door body 7 is in the fully open posture, the door body 7 is configured to be closed automatically when a manual opening operation is performed. Further, when the outer door body 7 is closed, It is configured to close in conjunction with this.
The inner door body 12 has a horizontal flat plate shape, and one end side portion 12a on the door end side corresponding to the shape of the escape port 3c is narrow, and the other end side portion 12b on the door bottom side is wide. A plurality of traveling rollers 12c are provided on the left and right side edges of the wide end portion 12b. On the other hand, a guide rail 13 that guides and supports the traveling roller 12c of the inner door body 12 is provided at the stepped surface 3a portion of the partition wall 3 that is the left and right hole edges in the other end side portion 3e of the escape port 3c. ing. And the inner side door body 12 is a normal attitude | position by the sliding movement of the running roller 12c along the guide rail 13, Comprising: The fully closed attitude | position which covers the escape port 3c, and an emergency attitude | position It is configured to change to a fully open posture that moves to the door bottom side and opens the escape port 3c.

A connecting means in which the present invention is implemented is provided between the outer door body 7 and the inner door body 12 configured as described above, and the outer door body 7 and the inner door body 12 are connected as described above. The structure of the connecting means will be described with reference to FIGS.
A connecting body 14 is integrally provided on the end face on the other end side (end face on the door butt side) of the inner door body 12 so as to be located in the middle portion in the left-right direction and project to the door butt side. The connecting body 14 is bent by a ferromagnetic material, and is formed with a pair of upper and lower connecting pieces 14a and 14b protruding toward the other end side. The upper connecting piece 14a located on the upper side is a constituent member of the connecting means, and serves as a magnet receiver as the integrating means of the present invention.

  On the other hand, the rotation support shaft 7g of the outer door body 7 is supported at both ends in the cylinder axis direction (traveling direction) via the support pieces 7h as described above, and is supported by the support piece 7h on the other end side in the cylinder axis direction. A coupler 16 that constitutes a power transmission mechanism 15 that is a constituent member of the connecting means is interlocked and connected to the rotational support shaft 7g that is supported by the bearing. The coupler 16 includes an input shaft 16a coupled so as to rotate integrally with the other end portion of the rotation support shaft 7g, and an output shaft 16b facing in the left-right direction that protrudes toward the roadway 4 side. The rotation of the rotation support shaft 7g is converted into rotation with the output shaft 16b orthogonal to the rotation support shaft 7g as the axis, and the rotation speed of the rotation support shaft 7g is increased. A large-diameter first sprocket 16c is fitted to the output shaft 16b.

Moreover, the vertical body 5d which constitutes the rising body 5 which is the other end side of the outer door body 7 and which is the door butt side of the inner door body 12 is a door width direction of the inner door body 12, as shown in FIG. The positional relationship is opposite to the intermediate portion (the intermediate portion in the left-right direction). Support brackets 5f projecting inwardly are provided on the inner surface of the vertical body 5d at a plurality of locations along the horizontal direction, and these support brackets 5f have a long shape constituting the power transmission mechanism 15. The chain guide 17 is provided.
The chain guide 17 is located immediately above the inner door body 12 and is fixed along the sliding direction of the inner door body 12. As shown in FIG. 9, the chain guide 17 includes a pair of left and right leg pieces 17a and 17b, and an upper piece 17c that connects upper end edges of the leg pieces 17a and 17b, and is on the inner door body 12 side. It is formed in a U-shaped cross-section with an opening at the bottom, and a pair of left and right sides is provided on one end side in the longitudinal direction (in the direction of the door of the inner door body 12) in the chain guide 17 surrounded by each piece 17a, 17b, 17c. The drive sprocket 17d is rotatably supported through the same support shaft, and a pair of left and right driven sprockets 17e are freely rotatable through the same support shaft at the other end in the longitudinal direction (the door bottom direction of the inner door body 12). It is supported. Between each of these left and right drive and driven sprockets 17d and 17e, a pair of left and right endless transfer chains 18 are suspended, and as will be described later, a pair of drive sprockets 17d is rotated along with the pair of drive sprockets 17d. The transfer chain 18 is configured to transfer between the driven and driven sprockets 17d and 17e in a synchronized state, and the pair of transfer chains 18 corresponds to the transfer body of the present invention. In addition, as a transfer body, what is transferred between a drive and a driven rotary body is sufficient, for example, it can also be set as a toothed belt.

  Further, of the leg pieces 17a, 17b of the chain guide 17, second to fourth sprockets 17f, 17g, 17h, which are appropriately set to have an outer diameter, are provided on the drive sprocket 17d side of the leg piece 17a on the outer wall 2 side. It is located outside the piece 17a and is supported adjacent to the longitudinal direction. On the other hand, the fifth and sixth sprockets 17i and 17j, which are appropriately set to have an outer diameter, are located outside the leg piece 17b and adjacent to the longitudinal direction at one end of the leg piece 17b on the roadway 4 side. It is bearing. The second sprocket 17f is interlocked and connected to the first sprocket 16c fitted to the output shaft 16b of the coupler 16 via the transmission chain 16d, but the second sprocket 17f is formed with a smaller diameter than the first sprocket 16c. Has been. Further, the second sprocket 17f is linked to a fifth sprocket 17i having a larger diameter via a support shaft 17k, and the fifth sprocket 17i is connected to a sixth sprocket 17j having a smaller diameter via a transmission chain 17m. Linked together. The sixth sprocket 17j is linked to a third sprocket 17g having a larger diameter via a support shaft 17k, and the third sprocket 17g is connected to a fourth sprocket 17h having a smaller diameter via a transmission chain 17m. Linked together. Thus, the driving force (rotational force) input from the first sprocket 16c is configured to be transmitted to the fourth sprocket 17h in an accelerated state. The speed-up fourth sprocket 17h is linked and connected to the drive sprocket 17d via a support shaft 17k, whereby the output (rotation) of the rotation support shaft 7g of the outer door body 7 is the first. , Second, fifth, sixth, third, and fourth sprockets 16c, 17f, 17i, 17j, 17g, and 17h, are transmitted to the drive sprocket 17d in an accelerated state, and driven sprocket 17e. The transfer chain 18 is transferred between the two.

  The pair of left and right transfer chains 18 that suspend between the drive and driven sprockets 17d and 17e are positioned at the lower suspension portions of the sprockets 17d and 17e, and both ends of the plate-shaped magnet mounting pieces 18a. The magnet 18b which comprises the integrated means of this invention is being fixed to the lower surface of this magnet attachment piece 18a. The magnet 18b (magnet mounting piece 18a) is set so as to be positioned on one end side of the chain guide 17 as shown in FIGS. The magnet 18b is set to be transferred to the other end side of the chain guide 17, as shown in FIG. 7, as the outer door body 7 changes from the fully closed position to the fully open position. Accordingly, the magnet 18b is set to be displaced between one end side and the other end side of the chain guide 17, that is, between the driving sprocket 17d and the driven sprocket 17e, in accordance with the opening / closing operation of the outer door body 7.

In the fully closed posture of the outer door body 7, the magnet 18 b located on one end side faces the upper connecting piece 14 a of the connecting body 14 of the inner door body 12 in the fully closed posture, and the magnet 18 b and the upper connecting piece. The outer door body 7 and the inner door body 12 are integrated by magnetizing (engaging) 14a with each other, and the door bodies 7 and 12 are linked together. And the inner door body 12 can be interlocked.
Here, the transfer chain 18 is transferred based on the rotation of the rotation support shaft 7g accompanying the opening and swinging of the outer door body 7, and the transfer amount of the transfer chain 18 is the first to sixth sprockets 16c, 17f. , 17g, 17h, 17i, 17j can be set to a desired length based on the speed increasing ratio set by the outer diameter ratio. In this embodiment, the transfer stroke of the transfer chain 18 based on the change of the outer door body 7 from the fully closed position to the fully open position is more than the stroke of the inner door 12 changing from the fully closed position to the fully open position. Is also set to be long.

  The lower connecting body 14b of the inner door 12 is integrally formed with an engaging arm 14c composed of a protruding piece protruding toward the roadway 4 and a protruding piece protruding downward from the tip of the protruding piece. Has been. Further, the stepped portion 3 b of the partition wall 3 on the door bottom side of the inner door body 12 is on the door end (one end) side from the position where the driven sprocket 17 e of the chain guide 17 is disposed, and the roadway 4 from the chain guide 17. A stopper piece 3f is provided on the side portion. The inner door body 12 is configured to be in a fully open position by the engagement arm 14c coming into contact with the stopper piece 3f. When the fully open position is reached, the opening operation of the inner door body 12 is regulated. It is configured.

In the evacuation door composed of the outer door body 7 and the inner door body 12 configured as described above, the outer door body 7 and the inner door body 12 are in a fully closed posture in a normal state, and each of these doors. It is the said linkage state in which the bodies 7 and 12 interlock | cooperate. In an emergency in which some accident occurs and evacuation is required, when the operation tool 10 is operated, the outer door body 7 opens, but when the rotation support shaft 7g rotates based on the operation, The drive sprocket 17d is driven via the first to sixth sprockets 16c, 17f, 17g, 17h, 17i, and 17j to transfer the transfer chain 18 toward the driven sprocket 17e (the other end). ing. Thereby, the inner door 12 is directed toward the other end side based on the magnetic adhesion (integration) between the magnet 18b on the transfer chain 18 side (outer door body 7 side) and the upper connecting piece 14a on the inner door body 12 side. Are configured to be transported. Then, when the outer door body 7 is being opened, when the engagement arm 14c comes into contact with the stopper piece 3f and the inner door body 12 changes to the fully opened posture, the inner door body 12 is restricted from being opened, and from this state, the outer door is further opened. When the body 7 is opened and swung and the transfer chain 18 is transferred to the driven sprocket 17e side, the magnet 18b on the outer door body 7 side is forcibly separated from the upper connecting body 14a on the inner door body 12 side. The magnetic attachment (engagement, integration) is canceled (released, dropped), and the connection between the outer door body 7 and the inner door body 12 is released.
And in the state which this connection cancellation | release was made and the outer side door body 7 was in the fully open attitude | position, the magnet 18b is located in the site | part which deviated from the upper side connection piece 14a of the inner side door body 12 to the driven sprocket 17e side. In this state, the magnet 18b is configured to be kept connected to the transfer chain 18.
In this embodiment, as an integration means for integrating (connecting) the transfer chain 18 (outer door body 7) and the connecting body 14 (inner door body 12), the upper side as a magnet 18b and a magnet receiver. Although the connecting body 14a is used, the connecting body 14 (engaging arm 14c) is brought into contact with the stopper piece 3f between the transfer chain 18 and the connecting body 14 (engaging arm 14c) to release the engagement (unintegrated). It is also possible to use a hook structure that engages (integrates) by displacement of the transfer chain 18 toward the drive sprocket 17d.

Further, the inner door body 12 is configured to be self-closing, and a self-closing device 19 is connected to an engagement arm 14c provided on the lower connection piece 14b of the door 14-side connection body 14, It is configured to automatically close in the state where the connection with the door body 7 is released.
The self-closing device 19 has a known configuration. That is, as shown in FIGS. 6 and 7, the self-closing device 19 includes an operation wire 19 b to which an operation piece 19 a that interferes with the engagement arm 14 c of the inner door body 12 is connected. The actuating wire 19b is pulled out from a winding device 19d provided in the main unit 19c disposed on the door butt side of the inner door body 12 in the fully open position, and from the engagement arm 14c of the inner door body 12 in the fully closed position. Also, the auxiliary pulley 19e provided on the door end side is wound and wound around a winding pulley 19f provided on the door bottom side of the main unit 19c. Then, the operating piece 19a connected to the operating wire 19b is between the auxiliary pulley 19e and the take-up pulley 19f, and, as shown in FIG. It is provided so that it may contact | abut from the door bottom side. Here, the urging force of the winding device 19d is set to a size necessary for closing the inner door body 12, while the urging force of the winding pulley 19f is necessary for tensioning the operating wire 19b. Is set to a large size. Thus, in normal operation, the operation piece 19a presses the inner door body 12 in the closing direction to maintain the inner door body 12 in the fully closed posture and to maintain the tension state of the operation wire 19b. Yes.

  Then, when the inner door body 12 is opened, the self-closing device 19 is in a state in which the engaging arm 14c presses the operating piece 19a toward the door bottom, and the operating wire 19b is applied to the urging force of the winding device 19d. It is set so as to be unwound and forcedly transferred to the doorside. The main unit 19c of the self-closing device 19 includes a mechanical timer device that constitutes a delay mechanism. When the operation wire 19b is unwound by the opening operation of the inner door body 12, the timer device It is set to start operation. Further, the main unit 19c is provided with a winding device restricting means interlocking with the delay mechanism, and when the opening operation of the inner door body 12 (the unwinding operation of the operating wire 19b from the winding device 19d) is started. The rotation of the winding device 19d is restricted in the winding direction (the direction in which the inner door 12 is closed), and the rotation restriction of the winding device 19d is canceled as the timer time based on the timer device elapses. The operation wire 19b is configured to be wound based on the urging force of the winding device 19d. In this state, the operation piece 19a pushes the engagement arm 14c (inner door body 12) toward the door end, The inner door body 12 is configured to be closed.

As described above, when the inner door 12 configured in this manner is in the fully open posture in conjunction with the opening operation of the outer door 7, the upper connecting piece 14c of the connecting body 14 is restricted in movement, while the magnet 18b. Thus, the magnetic adhesion between the two is eliminated, and the connection between the outer door body 7 and the inner door body 12 is released. And when it will be in this state, although the inner side door body 12 will be in the state from which the tension | pulling force to an open direction is cancelled | released, the self-closing device 19 is the rotation control of the winding direction of the winding device 19d by the winding device control means. Therefore, the inner door body 12 is not pressed by the operating piece 19a to operate in the closing direction, and the closing operation is set to start after the timer time of the delay mechanism has elapsed. As a result, the inner door body 12 once in the fully open posture is automatically disconnected without being linked to the outer door body 7 after the inner door body 12 is released from the outer door body 7 and only the inner door body 12 has elapsed the timer time. It is configured to operate in a closed manner. For this reason, the partition wall formed between the roadway 4 and the evacuation passage 6 with the inner door body 12 in the fully closed posture in a state where the outer door body 7 stands up and opens the cutout portion 5 c of the rising body 5. 3 evacuation port 3c is closed.
In addition, after the inner door body 12 is transformed into the fully open posture and the connection with the outer door body 7 is released, the inner door body 12 is in the middle of the closing operation by the self-closing device 19 or in the fully-closed posture state by the self-closing device 19 Even after changing the shape, the opening operation can be manually performed, so that a subsequent evacuee can open the inner door body 12 and access the communication path 11. Even when the inner door body 12 is manually opened to be in a fully open position or a halfway open position, the inner door body 12 is closed after a predetermined timer time has elapsed, and the upper space on the roadway 4 side and the evacuation passage are closed. 6 side lower space is comprised so that it may not be in a communication state over a long time.

As described above, the inner door body 12 is configured to be self-closed by the self-closing device 19 after a predetermined time has passed in a state where the inner door body 12 is changed to the fully open posture or the halfway open posture, and thereby, a large number of evacuees Can be continuously moved to the evacuation passage 6 side, but the inner door body 12 remains in the fully open posture, and the upper and lower sides of the partition wall 3 communicate with each other and the smoke generated on the roadway 4 side in the upper space And toxic gas can be prevented from flowing into the evacuation passage 6 side of the lower space.
Moreover, since the self-closing device 19 is not a mechanism that operates using electricity but is a mechanical mechanism, even if a power failure occurs in an emergency situation, the inner door body 12 can be automatically closed. It is configured as follows.

On the other hand, when the accident ends and returns to the normal state, the outer door body 7 is in the fully open posture, and the connection with the inner door body 12 is released. Based on this, it is a fully closed posture. In order to return from this state to the normal state, the opening / closing machine 9 is driven to forcibly transform the outer door body 7 in the fully open position into the fully closed position. When the rotation support shaft 7g rotates in the closing direction, the transfer chain 18 of the power transmission mechanism 15 is transferred to one end side (door end side of the inner door body 12) which is the drive sprocket 17d side. Yes. At this time, the magnet 18b as an integration means for linking the outer door body 7 and the inner door body 12 is held in a state of being connected to the transfer chain 18 without being drooped like a conventional one, It is set to be transferred to one end side of the chain guide 17 from a state positioned on the other end side of the chain guide 17 as the transfer chain 18 is transferred. As a result, the magnet 18b is transferred to one end side, so that the magnet 18b is magnetically attached to the upper connecting piece 14a provided on the door bottom side of the inner door body 12 in the fully closed posture, and the outer door body 7 and the inner door body 12 are magnetized. It is configured so that the connection with is restored.
Incidentally, when changing the outer door body 7 from the fully open position to the fully closed position, it is assumed that the inner door body 12 is not in the fully closed position but in the fully open position or the halfway open position. However, in this case, the upper connecting piece 14a of the inner door body 12 is located in the transfer path of the magnet 18b transferred along the chain guide 17, and the process of transforming the outer door body 7 into the closed posture is performed. Thus, the magnet 18b can be magnetically attached to the upper connecting piece 14a, whereby the outer door body 7 is transformed from the fully open position to the fully closed position, so that the outer door body 12 is opened or closed regardless of the open / closed state of the inner door body 12. 7 and the inner door 12 can be returned to the linked state.

  In addition, the outer door body 7 in the fully closed posture is in a state in which the ground cover equivalent piece portion 7f protrudes toward the roadway 4 and is configured to cover the escape port 3c closed by the inner door body 12. Yes. And the receiving metal fitting 7j is provided in the lower surface of the cover equivalent piece part 7f by the side of the one end side site | part 3d where the groove width of the escape port 3c is narrow, This receiving metal fitting 7j is on the roadway 4 side of the escape port one end side site 3d. It is comprised so that it may be supported by a hole edge.

In the present embodiment configured as described, the tunnel 1 is formed with a roadway 4 in the upper space and an evacuation passage 6 in the lower space, with the partition wall 3 dividing up and down as a reference. In an emergency, people traveling on the roadway 4 can move to the evacuation passage 6 side to evacuate outside the tunnel 1. In this case, the evacuation door provided in the evacuation path extending from the roadway 4 to the evacuation passage 6 includes an outer door body 7 provided along the rising body 5 formed on the left and right sides of the roadway 4, and the outer door body 7. A double door structure is formed by the inner door body 12 provided along the partition wall 3 exposed by opening, but by operating the operation tool 10, the flip-up type outer door body 7 and the sliding type are formed. Both the inner door body 12 and the inner door body 12 can be opened. In addition, while the outer door body 7 is left open, there is an advantage that the evacuees can be guided to the evacuation passage 6 side, but the connection between the outer door body 7 and the inner door body 12 is released. The inner door body 12 can be freely opened and closed, and the smoke and toxic gas on the roadway 4 side can be prevented from flowing out to the evacuation passage 6 side.
Moreover, in this case, after the evacuation in an emergency, the operation of returning the outer door body 7 to the fully closed posture is performed, so that the connecting means between the outer door body 7 and the inner door body 12 is automatically linked. It is possible to return to the state, there is no need for a separate operation to return the connecting means like the conventional one, it is excellent in maintainability, and forgetting the returning operation of the connecting means Can be reliably avoided.

  In this case, the connecting means for connecting the flip-up type outer door body 7 and the sliding type inner door body 12 is configured by using the power transmission mechanism 15, and the transfer chain 18 is suspended. The transfer chain 18 is transferred in a state in which the diameters of the sixth sprockets 16c, 17f, 17g, 17h, 17i, and 17j are made different to amplify the rotation speed of the rotation support shaft 7g of the outer door body 7. The transfer stroke of the chain 18, that is, the sliding movement stroke of the inner door body 12, can be set by appropriately adjusting the diameters of the first to sixth sprockets 16c, 17f, 17g, 17h, 17i, 17j. The degree of freedom of the opening / closing stroke of the inner door body 12 can be increased.

  In addition, in this case, an integration means for integrating the transfer chain 18 on the outer door body 7 side and the inner door body 12 is provided on the magnet 18b provided on the transfer chain 18 and the inner door body 12, and the magnet 18b. Since it is constituted by the upper coupling body 14a made of a ferromagnetic material that is magnetically attached, the construction of the integration means can be simplified.

  Further, in the case where the present invention is implemented, the self-closing device 19 is provided on the lighter inner door body 12 than the outer door body 7 and automatically closes after being opened. Although the closing device 19 can be reduced in size, the roadway 4 side and the escape passage 6 side do not remain in communication. In addition, since only the inner door body 12 can be freely opened and closed, the space between the roadway 4 and the evacuation passage 6 can be effectively blocked, and smooth evacuation can be realized.

Of course, the present invention is not limited to the above-described embodiment, and in the above-described embodiment, the main passage of the tunnel is described on the assumption that a vehicle passes. Of course, it is also possible to adopt as a thing to pass.
Further, the second embodiment shown in FIG. 10 may be used.
In FIG. 10, it is comprised using the structural member similar to said structural member of said 1st Embodiment, and description is abbreviate | omitted by attaching | subjecting the same code | symbol about these.
In the second embodiment, the magnet 18 b connected to the transfer chain 18 is located on one end side of the chain guide 17 in the fully closed posture of the outer door body 7, and the chain guide 17 is in the fully opened posture of the outer door body 7. Positioning on the other end side is the same as in the first embodiment. On the other hand, the position of the first connecting piece 14a of the connecting body 14 connected to the door butt side end portion of the inner door body 12 is the position where the magnet 18b is disposed in the fully closed position of the outer door body 7 in the fully closed position. In the fully open position, the outer door body 7 is configured to be closer to the door tip side than the position where the magnet 18b is disposed in the fully open position. The inner door body 12 is configured to be fully open by being integrated with the door body 12.
As a result, not only when the door bodies 7 and 12 are in the fully open position, but also in the fully closed position, the connecting means for connecting the door bodies 7 and 17 is configured to be in the released state. 7, the inner door body 12 can be freely opened and closed in both the fully open posture and the fully closed posture. And in this thing, even if the outer side door body 7 is a fully-closed state, the inner side door body 12 can be freely opened and closed by accessing the inner side door body 12 from the escape passage 6 side, and this is done. This improves convenience during installation and maintenance of the evacuation door.

  The present invention can be used as an evacuation door provided in a tunnel through which a person, a vehicle, a train, or the like passes.

DESCRIPTION OF SYMBOLS 1 Tunnel 2 Outer wall 3 Partition wall 3f Stopper piece 3c Escape port 4 Roadway 5 Standing body 5c Notch part 6 Evacuation passage 7 Outer door body 8 Weight body 9 Opening / closing machine 10 Operation tool 12 Inner door body 14 Connection body 14a Upper connection piece 14c Engagement arm 15 Chain transmission mechanism 16 Coupler 16c First sprocket 17 Chain guide 17d Drive sprocket 18 Transfer chain 18b Magnet 19 Self-closing device

Claims (5)

The inside of the tunnel is divided up and down through a partition wall, and a main passage and a rising body located on the side of the main passage and higher than the main passage are formed on the upper side of the partition wall. In the tunnel in which the escape passage is formed, a notch is formed in a part of the rising body, and an outer door body that opens and closes the notch is provided, while a partition wall that faces the notch Forming an evacuation port following the evacuation passage, providing an inner door body that opens and closes the evacuation port slidably along the partition wall, and connecting means for opening the inner door body with the opening operation of the outer door body The linking means is configured to release the linkage when the outer door body is changed to the fully open posture and to return the linkage when the outer door body is closed. door. The linking means is provided with a power transmission mechanism for transferring the transfer body along the sliding direction of the inner door body based on the rotation of the swing support shaft constituting the outer door body. Tunnel evacuation door. The tunnel evacuation door according to claim 2, wherein the power transmission mechanism is configured to increase the rotational speed of the swing support shaft of the outer door body to increase the transfer amount of the transfer body. The connection means is provided between the transfer body of the power transmission mechanism and the inner door body, and is configured to include an integrated means that engages and disengages with the opening / closing operation of the outer door body. Tunnel evacuation door. The inner door body is configured to include a self-closing device, and the opened inner door body is configured to automatically close when the connecting means is released. The evacuation door for tunnels as described in the paragraph.

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