JP4008873B2 - Evacuation ladder device - Google Patents

Description

  The present invention relates to an escape ladder apparatus.

  Conventionally, what was described in patent document 1 is known as an evacuation ladder apparatus. In this conventional example, the evacuation ladder apparatus is formed by connecting both ends of a step rail to the fixed column and the movable column so as to be vertically rotatable, and from the stowed posture in which the movable column is aligned with the fixed column fixed to the wall of the building. With the rotation of the crosspiece, the movable column moves to a deployment posture that is separated from the fixed column by a predetermined distance. The fixed support column is formed in a substantially concave shape with an open portion, accommodates a long connecting rod inside, and supports a locking claw that rotates by moving the connecting rod in the longitudinal direction. The latching claw is latched by the latching pin formed on the column, thereby restraining the movable column and maintaining the storage posture of the ladder device.

In addition, a plate-like unlocking portion is rotatably supported on the fixed support column, and the lever portion of the unlocking unit protruding from the above-described opening portion is rotated, so that the connection rod is connected to the inside of the fixed support column. The connecting hook part of the unlocking part to be pivoted rotates to drive the connecting hook in the longitudinal direction, whereby the locking claw is rotated and the locking claw and the locking pin are unlocked. The step rail that is inclined in the storage position of the ladder device rotates to its horizontal position by its own weight by releasing the locking claw and the locking pin. Accordingly, the movable column is separated from the fixed column and the ladder for evacuation The device moves from the stowed position to the deployed position.
Japanese Patent Publication No. 2-15717

  By the way, since the ladder apparatus for evacuation is generally installed outdoors, a part that is exposed to the outside, in particular, a mechanism that is driven when the ladder apparatus is moved from the stowed position to the deployed position, is contaminated or rusted by wind and rain. Consideration for prevention is required. In the above-described conventional example, the movable strut is overlapped with the fixed strut in the retracted posture of the evacuation ladder device, and the unlocking portion and the connecting rod are closed by closing the open portion of the fixed strut with the movable strut. The exposure of the connecting part and the connecting rod itself is prevented.

  However, in this conventional example, in order to prevent exposure of the connecting portion between the unlocking portion and the connecting rod, the relative position relationship between the opening portion of the fixed column and the movable column is a condition. There is a problem that the degree of freedom with respect to the mutual positional relationship between the unlocking portion and the movable support is extremely low. In order to solve this problem, it is conceivable to attach an independent cover or the like that does not depend on the positional relationship to the open part of the fixed column. In this case, the unlocking part is connected to the connecting rod through the cover or the like. Since it will be assembled | attached, the problem that operation reliability of a ladder apparatus cannot be ensured is caused.

  That is, since the connecting portion between the operating force transmission member such as the connecting rod and the operating means such as the unlocking portion is not visible by the cover or the like, the operating means can sufficiently drive the operating force transmitting member. That is, it cannot be confirmed whether or not the assembly means is properly assembled so that the operation means can actuate the deployment means such as the locking claw in the above-described conventional example. As a result, it becomes impossible to ensure the operational reliability from the stowed posture of the ladder device to the deployed posture by operating the operating means.

  Further, in the above conventional example, in order to pivotally attach the unlocking portion to both the fixed support column and the connecting rod, when the cover is provided as described above, the operating means such as the unlocking portion and the connecting rod etc. There is a drawback that the workability of assembling with the operating force transmission member becomes extremely poor.

  The present invention has been made to eliminate the above-mentioned drawbacks, and can ensure the operational reliability of the ladder device and can provide an assembling workability between the operating means and the operating force transmission member. The purpose is to provide a device.

According to the present invention, the object is
An evacuation ladder apparatus formed by covering an operating force transmission member 4 with a cover body 5 for transmitting an operating force to the operating means 1 to the expanding means 2 as a driving force and moving the ladder apparatus 3 from the stowed position to the expanded position. Because
The operating means 1 includes an arc-shaped bent portion 6, and engages an engaging portion 9 with an engaged portion 8 formed on the operating force transmitting member 4 through an opening 7 formed in the cover body 5. Rotating lever 10 to be
A lever support body 12 which is mounted on the surface of the cover body 5 and secures a gap 11 for viewing the engaging portion 9 of the rotary lever 10 in the opening 7 to support the bent portion 6 of the rotary lever 10;
After the engagement with the operating force transmission member 4 is completed, the bent portion 6 of the rotary lever 10 exposed from the cover body 5 is brought into contact with the lever support body 12 in the facing direction and is mounted on the surface of the cover body 5. This is achieved by providing an evacuation ladder device having a gap closing member 13 that closes 11 and holds the rotary lever 10 together with the lever support body 12 so as to be rotatable.

  According to the present invention, the evacuation ladder device is formed by covering the operating force transmission member 4 with the cover body 5, and the operating force is transmitted to the unfolding means 2 by the operating force transmission member 4 as a driving force. The operating means 1 is attached. Since the opening 7 opened in the cover body 5 for engaging the operation means 1 with the operation force transmission member 4 is closed by mounting the operation means 1 on the cover body 5, A connection part etc. with the transmission member 4 are not soiled or rusted by wind and rain entering from the opening 7. The operation force transmission member 4 can be constituted by a member suitable for power transmission in remote operation, for example, a long frame, a linear body, a gear, or the like, and is composed of irregularities and holes with which the operation means 1 is engaged. The engaged portion 8 is formed at appropriate places. Further, the unfolding means 2 can be configured by a prime mover that drives the ladder device 3 or a hook that restrains the ladder device 3 that moves to the unfolded posture by its own weight or the like as in the above-described conventional example in the stowed posture. .

  In the present invention, in order to ensure the engagement with the operating force transmission member 4 covered by the cover body 5, the operation means 1 has the rotary lever 10 having the engagement portion 9 and the lever support body 12 and the gap. It is configured to be held by the closing member 13. The lever support body 12 is mounted on the surface of the cover body 5 by supporting the rotation lever 10 loosely inserted into the opening 7, and in the mounted state, the engaging portion 9 of the rotation lever 10 is visually observed from the outside of the cover body 5. A space 11 that can be used is secured in the opening 7. The gap 11 can be closed by mounting the gap closing member 13 on the surface of the cover body 5, and the operating force of the rotary lever 10 can be transmitted from the gap 11 before the gap closing member 13 is attached to the cover body 5. Since the engagement state with respect to the member 4 can be confirmed, proper assembly of the operation means 1 to the operation force transmission member 4 is ensured, and the operation force transmission member 4 can be reliably driven by the operation means 1. Thereby, the expansion | deployment means 2 can be operated reliably.

  Further, since the rotating lever 10 is held rotatably by being held by the lever support body 12 and the gap closing member 13 that are mounted on the surface of the cover body 5 with the arc-shaped bent portion 6, the cover body 5 The rotary lever 10 can be rotatably mounted on the cover body 5 only by work from the front side. Therefore, the mounting workability can be greatly improved as compared with the case where the rotating shaft is installed inside the cover body 5 as in the conventional example described above.

Further, ensuring the operational reliability of the ladder device 3 and improving the workability of assembling the operation force transmission member 4 and the operation means 1 are as follows:
The pre-SL operating force transmitting member 4, an elongated member 14 connected to the deployment means 2,
Achieved by configuring the length is adjustable in position secured to the elongate member 14, and have a the engaged piece 15 engaged portion 8 is formed to be engaged with the engaging portion 9 of the rotating lever 10 Is done.

  That is, when the expansion means 2 is remotely operated by the operation means 1, the operation force transmission member 4 that drives the expansion means 2 by movement of a predetermined distance can be moved by the operation. The operation means 1 needs to be assembled. The moving distance of the operating force transmission member 4 needs to be set short in consideration of the operability of the operating means 1. However, if the operating distance is shortened, the operating force transmitting member 4 can be driven with respect to the operating force transmitting member 4. The operating means 1 must be assembled with strict dimensional accuracy. In this regard, when the distance between the unfolding means 2 and the operating means 1 is much longer than the moving distance, it is difficult to manage the dimensions with strict accuracy, and the operating means 1 for the operating force transmission member 4 is difficult. An error is likely to occur in the assembly position.

  On the other hand, in the above-described conventional example, the locking claw and the locking pin are moved by twisting the unlocking portion and moving the connecting rod by a distance shorter than the distance between the unlocking portion and the locking claw. Since it is formed so that it can be unlocked, the unlocking part must be assembled with strict dimensional accuracy with respect to the connecting rod as described above. Error is likely to occur. Therefore, the conventional example has a drawback that the operation of the unlocking unit may not be driven properly even if the unlocking unit is operated, and the operation reliability of the ladder device is low.

In the present invention, the long member 14 connected to the deployment means 2 and the engaged portion 8 fixed to the long member 14 so as to be position-adjustable and engaged with the engaging portion 9 of the rotating lever 10. When an error occurs in the assembly position of the operating means 1 with respect to the operating force transmission member 4 by providing the evacuation ladder device provided with the operating force transmission member 4 having the engaged piece 15 formed with This can be corrected by adjusting the position of the engaged piece 15 with respect to the long member 14, and the operation reliability of the ladder device 3 can be ensured.

  In addition, when the operating force transmission member 4 is covered with the cover body 5, an opening 7 for inserting the operating means 1 into the cover body 5 is opened in advance in a factory or the like so that the construction can be efficiently performed on site. It is necessary to keep. In this case, the opening position of the opening 7 in the cover body 5 is set with reference to the cover body 5, but the long member 14 is suspended at the fixing position of the engaged piece 15 in the long member 14. The expansion means 2 is set as a reference. As a result, when the distance between the unfolding means 2 and the operating means 1 is long as described above, a dimensional error occurs between the operating means 1 inserted from the opening 7 and the engaged piece 15. Cheap. In this regard, according to the present invention, it is possible to ensure proper assembly of the operating means 1 and the operating force transmission member 4 only by adjusting the position of the engaged piece 15 in the longitudinal direction of the long member 14.

  In the present invention, the engaged piece 15 fixed to the operating force transmission member 4 so as to be position-adjustable is provided with irregularities, holes or the like with which the operating means 1 is engaged, and is detachable from the long member 14 or The long member 14 is formed to be slidable in the longitudinal direction, and is fixed to the long member 14 by, for example, pressing the long member 14 by screwing in a screw.

Furthermore, the above ladder for evacuation is
It engaged the exhibition connecting the elongate member 14 successive predetermined lengths for the opening means 2, is formed in the engaged piece 15 fixed in a position variable in position set against the long elongated member 14 Ri Na by engaging the engagement portion 9 of the rotary lever 10 to part 8, to drive the development unit 2 installed on the upper floor side by an operation of the elongated member 14 from the lower floor side, a ladder device 3 It can be configured to move from the stowed position to the deployed position .

  That is, in the above-described conventional example, the locking claw is unlocked using the length of the connecting rod by pivotally attaching the unlocking portion to the upper end portion of the connecting rod having the locking claw attached to the lower end portion. Remotely operate with the lock and deploy the ladder device. For this reason, the arrangement of the unlocking portion is changed in the entire escape ladder device when the length of the connecting rod is changed, but in the relative relationship with the connecting rod, the upper end portion of the connecting rod, That is, it is set at a predetermined position. Therefore, in the above conventional example, the position of the remote operation is determined to be a predetermined position set in advance in the connecting rod, and the degree of freedom of the arrangement of the operating means 1 such as the unlocking portion with respect to the operating force transmission member 4 such as the connecting rod. Has the disadvantage of being low.

  In this respect, according to the present invention, since the operating means 1 is connected to the engaged piece 15 that is variably fixed at the position set with respect to the long member 14, the long member at the construction site. 14 can be freely set in accordance with the structure of the building to be constructed. That is, the long member 14 is used as a reference for determining the arrangement of the operating means 1, and the position where the engaged piece 15 is fixed in the range of the length of the long member 14 is set. The operating means 1 can be freely arranged within the length range. For this reason, for example, when the long member 14 has a length extending over all the floors of a four-story building, all the floors including the second floor to the third floor which are intermediate portions in the longitudinal direction of the long member 14 are included. It becomes possible to arrange the operation means 1 freely.

  Further, according to the present invention in which the fixed position of the engaged piece 15 to which the operating means 1 is connected to the long member 14 is set, the position at which the engaged piece 15 is fixed to the long member 14 is set. By increasing the number of settings, a plurality of operation means 1, 1,... Can be easily attached to the long member 14. In this case, since the ladder device 3 is unfolded by the unfolding operation of any of the operation means 1, for example, when the ladder device 3 is installed across a plurality of floors over the third floor of the building, the operation means is provided on each floor. When 1 is provided, a resident on an unoperated floor can be immediately evacuated by using the deployed ladder device 3 by an unfolding operation on any floor.

  As is clear from the above description, according to the present invention, the operational reliability at the time of deployment of the evacuation ladder apparatus that has improved the storage efficiency by folding or sliding movement is ensured by simple construction over a long period of time. be able to.

  Moreover, according to this invention, the freedom degree of arrangement | positioning of the operation means with respect to a elongate member can be raised, and the convenience of expansion | deployment operation of the ladder apparatus for evacuation can be improved.

  FIG. 1 shows the state of use of an evacuation ladder device installed in a four-story building. The building is provided with a window 20 on each floor with a sliding door that serves as an exit for evacuation, and an evacuation route is provided along the building wall 22 in a vertical direction from the window 20 of each floor to the ground 21 by an evacuation ladder device. It is formed.

  As shown in FIG. 1, the evacuation ladder device includes a ladder device 3 formed by connecting ladder bars 24 at a predetermined pitch in the longitudinal direction of the ladder support rod 23, and a suspension base 25 that suspends the ladder device 3. And an auxiliary ladder device 26 provided between the lower end of the ladder device 3 suspended from the suspension frame 25 and the ground 21.

  The ladder support rod 23 is a channel member formed by extruding an aluminum material to have a length slightly shorter than the height of the building, and one end of the connection link 27 is connected to the longitudinal direction at a predetermined pitch so as to be vertically rotatable. . The other end of the connecting link 27 is connected to a fixed vertical beam 28 fixed to the building wall 22 so as to be vertically rotatable, and the ladder is supported by placing the connecting link 27 in a vertical posture as shown by a dotted line in FIG. The eaves 23 can be stored so as to be superimposed on the fixed vertical beam 28, and the ladder support eaves 23 can be vertically moved from the building wall 22 by placing the connecting link 27 in a horizontal posture as shown by a two-dot chain line in the figure. Can jump out in the direction. The range of movement of the ladder support rod 23 in the protruding direction is that the locking piece 23a protruding from the side of the ladder support rod 23 is suspended as shown by the two-dot chain line in FIGS. 2 (a) and 2 (c). It is regulated by being locked to the upper surface of the gantry 25. The ladder support rod 23, the fixed vertical rail 28, and the connection link 27 are connected by a connection pin (not shown).

  The ladder bar 24 has one end connected to the ladder support rod 23 and the other end connected to the movable vertical bar 29 so as to be vertically rotatable by a connecting pin (not shown). The ladder bar 24 is rotatable in a plane orthogonal to the plane of rotation of the connecting link 27, that is, in a plane parallel to the building wall surface 22, and as shown in FIG. The movable vertical beam 29 can be stored side by side on the side of the ladder support rod 23, and the movable vertical beam 29 can be moved away from the ladder support rod 23 by setting the horizontal posture as shown by the two-dot chain line in the figure. And face the building wall 22. The range of movement of the movable vertical rail 29 in the direction away from the ladder support rod 23 is such that the movable vertical rail 29 protrudes to the side of the movable vertical rail 29 as shown by a two-dot chain line in FIGS. The stop piece 29 a is regulated by being locked to the upper surface of the suspension base 25.

  As shown in FIG. 1, the auxiliary ladder device 26 is formed by connecting an auxiliary ladder bar 31 to a pair of auxiliary vertical bars 30 and 30 at a predetermined pitch. The auxiliary vertical beam 30 is a channel member formed by extrusion molding of aluminum so as to be slightly longer than the distance between the lower end of the ladder support rod 23 and the ground 21, and the building wall surface of the ladder support rod 23 and the movable vertical beam 29 described above. A use posture that includes a slide piece that fits on a slide rail (not shown) formed in the longitudinal direction on the 22 side, moves downward from a non-use posture that overlaps with the ladder support rod 23, etc., and protrudes below the ladder support rod 23, etc. And slidably connected to the building wall surface 22 such as the ladder support rod 23. Auxiliary ladder bars 31 whose both ends are connected to the auxiliary vertical bars 30 so as to be vertically rotatable by connecting pins (not shown) are rotatable in a plane parallel to the building wall surface 22, and in a vertical posture, a pair of auxiliary vertical bars 30, The auxiliary vertical rails 30 are separated from each other by a predetermined distance by placing the 30 side by side and storing them in a horizontal posture so as to face the building wall 22.

  In FIG. 1, reference numeral 32 denotes a deployment adjusting means, which is pressed by the lowermost ladder bar 24 ′ that rotates from the vertical posture to the horizontal posture, and rotates in a plane parallel to the building wall 22; And a block body (not shown) that moves forward and backward from the lower end of the ladder support rod 23 toward the building wall surface 22 side. The deployment adjusting means 32 can restrain the auxiliary ladder device 26 in a non-use posture by urging the block body toward the building wall surface 22 and bringing it into contact with the lower end surface of the auxiliary vertical beam 30. The auxiliary ladder apparatus that has lost the support of the block body after deployment of the ladder apparatus 3 by retracting the block body from the lower end surface of the auxiliary vertical rail 30 against the biasing force by the inclined surface of the sensing lever 33 that is pressed and rotated. 26 is moved to a use posture by its own weight.

  On the other hand, as shown in FIGS. 1 and 2, the suspension base 25 includes a fixed side frame 34 fixed to the building wall surface 22 and a movable side frame connected to the fixed side frame 34 so as to be vertically rotatable. A body 35. The fixed-side frame 34 is formed by bending a pipe having a circular cross section made by rolling stainless steel into a U-shape, and leg portions extending downward from both ends of the straight section are plate-like. It is fixed to the building wall surface 22 by being fixed to the base 36. The base portion 36 is fixed to the building wall surface 22 by anchor bolts (not shown).

  Near the lower end of the leg of the fixed side frame 34, the free end of the leg of the movable side frame 35 made of a pipe having substantially the same outer shape as that of the fixed side frame 34 is connected so as to be vertically rotatable. The movable side frame 35 is a frame-like member in which a guide opening 37 into which the upper part of the ladder support rod 23 and the movable vertical rail 29 is inserted is formed inside the frame, and is connected by a fixed side frame 34 and a link 38. 2 Rotate between a vertical posture that substantially overlaps the fixed-side frame 34 as shown in (a) and (b) and a use posture that protrudes substantially perpendicularly from the building wall surface 22 as shown by a two-dot chain line in the figure. be able to. As shown in FIG. 2 (c), the guide opening 37 has a pop-out direction guide portion 37a extending in a vertical direction from a base end connected to the movable side frame 35 in a use posture, and a direction perpendicular to the end of the pop-out direction guide portion 37a And a horizontal guide portion 37b that bends to form an L-shape in plan view.

  Therefore, in this embodiment, when the evacuation ladder device is not used, the auxiliary vertical beam 30, 30 is overlapped with the ladder support rod 23 and the movable vertical beam 29 from the building wall surface 22 side in FIG. As shown, the ladder support bar 23 overlaps the fixed vertical beam 28 from the building front side, and the movable vertical beam 29 overlaps the ladder support bar 23 from the side. In this stowed state, the ladder device 3 has a small projecting dimension from the building wall surface 22 and is folded to one side of the window 20, so that it does not get in the way. The storage posture of the ladder device 3 is maintained by holding the ladder device 3 on the building wall surface 22 side by the movable side frame 35 in the vertical posture, and in order to control the movable side frame 35 to the vertical posture and the use posture, In the evacuation ladder device, as the unfolding means 2, the locked portion 39 formed on the movable side frame 35 and the above-described fixed vertical rail 28 are formed so as to be vertically rotatable and can be engaged with and disengaged from the locked portion 39. A locking hook 40 is provided.

  The locking hook 40 is locked to the locked portion 39 in the horizontal position shown in FIG. 2 (b) to maintain the movable side frame 35 in the vertical position, and is rotated counterclockwise from this state (FIG. 6 (b). In the inclined posture shown in FIG. 9, the engagement with the locked portion 39 is released, and the movable side frame 35 is allowed to move to the use posture. As shown in FIG. 6B, the operating force transmission member 4 is connected to the locking hook 40 that is biased toward the horizontal posture by the spring 41, and the rotation of the locking hook 40 from the horizontal posture to the inclined posture is prevented. The operation means 1 attached to the operation force transmission member 4 can be remotely operated.

  As shown in FIG. 3, the operating force transmission member 4 is suspended from a locking hook 40 and passes through the inside of a fixed vertical rail 28 made of a channel member (long member 14). And a stopper (engaged piece 15) which is fixed and engaged with the operation means 1. The stopper 15 is formed by protruding a hemispherical portion (engaged portion 8) with which the operating means 1 engages at the upper part of the cylindrical shape, and an operation in which the operation cord 14 is inserted by cutting from one side wall to the vicinity of the central axis. An insertion path 42 is formed. As shown in FIG. 5 (a), a pair of immobilizers 44, 44 having a diameter slightly larger than the width of the notch screwed from one side wall opened by the notch project into the operation insertion passage 42. The protrusion 43 is provided so as to protrude from the opposite side wall toward the opened one side wall. The protrusion 43 protrudes into the operation insertion passage 42 at a substantially intermediate portion in the height direction of the stopper 15, and the immobilizer 44 protrudes into the operation insertion passage 42 across the protrusion 43, that is, the protrusion 43 and the immobilizer 44 Projecting alternately into the operation insertion passage 42 in the height direction, the operation rope 14 passing through the operation insertion passage 42 is bent in a zigzag manner and is strongly pressed by the protrusions 43 sandwiched between the immobilizers 44, 44. The stopper 15 is firmly fixed to the operation cord 14.

  The fixed vertical beam 28 into which the operating force transmission member 4 is inserted is located at a position passing through the side of the window 20 on each floor with respect to the building wall 22 with the opening 28a into which the connecting link 27 is inserted on the front side of the building. As shown in FIG. 3, an opening 7 into which the operation means 1 is inserted and a pair of screw holes for fixing the operation means 1 are formed on the side wall (cover body 5) of each floor. 45 and 45 are established. The operating means 1 that engages with the stopper 15 includes a rotating lever 10 that is inserted into the opening 7 of the side wall 5 of the fixed vertical beam 28 and engages with the stopper 15, and a screwed screw hole 45 to fix the fixed vertical beam 28. A lever receiver 46 that is fixed to the surface and closes the opening 7 together with the rotary lever 10 and holds the rotary lever 10 so as to be vertically rotatable from a locked position to an unlocked position, and is detachably attached to the lever receiver 46. 10 and a safety plug 47 for holding 10 in a locked posture.

  As shown in FIG. 3, the rotary lever 10 is provided with a grip portion 10 a at one end of a main portion formed by bending a flat plate material into a crank shape, and an engaging portion 9 that engages with a stopper 15 at the other end. It is formed. The main body includes a body portion 10b extending in a horizontal direction from the grip portion 10a, a first bent portion 10c bent 90 degrees in an arc shape upward from the terminal end of the body portion 10b, and a first bent portion 10c. A second bent portion 6 bent 90 degrees in a circular arc shape in the horizontal direction from the end of the second bent portion 6, and an insertion portion 10 d extending in the horizontal direction from the end of the second bent portion 6 and continuing to the engaging portion 9. The body portion 10b is provided with a wide portion 48 that is wider than other portions over a predetermined range in the longitudinal direction near the grip portion 10a, and on both sides of the wide portion 48 in order to guide the safety plug 47 to a predetermined position. Guide side walls 49, 49 formed by bulging the end portion upward, and a guide end wall 50 formed by bulging the rear end portion upward are formed. Further, the vicinity of the insertion portion 10d side of the second bent portion 6 is cut obliquely to avoid contact with the lever receiver 46 when the rotating lever 10 described later moves from the locked posture to the unlocked posture.

  The grip portion 10a is formed by cutting out the vicinity of the tip of the body portion 10b in an arc shape from both sides to form a constriction, and by bulging the opposite end of the constriction body portion 10b into a substantially cylindrical shape on the outer surface. Is provided with an arrow indicating the operation direction of the rotary lever 10. Further, the engaging portion 9 is formed by arm portions 51, 51 extending in a bifurcated manner in the width direction from the insertion portion 10d, and an operation cord in which the operation cord 14 can be inserted between the arm portions 51, 51. An insertion opening 52 is provided, and a spherical surface 51 a that fits outside the hemispherical portion 8 of the stopper 15 is recessed on the lower surface side of each arm portion 51. In FIG. 3, reference numeral 53 denotes a display member such as a sticker, which is engraved with a character “pulling” to notify the operating direction of the rotary lever 10 when the safety plug 47 is removed.

  On the other hand, the lever receiver 46 includes a lever lower support (lever support body 12) that supports the rotary lever 10 from the lower surface side, and a lever upper receiver (gap closing) that supports the rotary lever 10 supported by the lever lower support from the upper surface side. Member 13).

  The lever lower support 12 is fitted from below into the first bent portion 10c side, the first bent portion 10c, and the second bent portion 6 from the wide portion 48 of the body portion 10b of the rotary lever 10 in a horizontal posture. A fitting recess 12a is formed by bulging the side walls that support these side surfaces from both ends of the mating bottom wall, and a through hole 55a into which the tapping screw 54 is inserted is drilled below the bottom wall. A fixed piece 55 is formed. In addition, the bottom wall and the side wall are extended to form a fitting portion 56 that is fitted into the opening 7 in a fixed state to the fixed vertical rail 28. The fitting portion 56 is shown in FIG. As described above, the side wall 56a for supporting the insertion portion 10d of the rotary lever 10 from the side is provided, and the side wall 56a is inclined downward from the bottom wall for supporting the second bent portion 6 of the rotary lever 10. An inclined surface 56b is provided that allows the rotary lever 10 to move to the unlocked posture with a predetermined interval from the cut inclined surface. In FIG. 3, 57 is a fitting groove into which the safety plug 47 is fitted.

  On the other hand, the lever upper receiver 13 is a ceiling wall that contacts the upper surface of the second bent portion 6 of the rotary lever 10 and hangs downward from both end portions of the ceiling wall, together with the lever lower receiver 12 and the second bent portion 6. And a through hole 13b into which the tapping screw 54 is inserted is drilled above the ceiling wall. Further, as shown in FIG. 5 (b), it fits into the opening 7 of the fixed vertical rail 28 corresponding to the lever lower support 12 described above, and supports the side surface and the upper surface of the insertion portion 10d near the second bent portion 6. A fitting portion 58 is provided.

  When assembling the rotary lever 10, lever lower receiver 12, and lever upper receiver 13 to the stopper 15, first, the rotary lever 10 is slid from the side with respect to the fitting recess 12 a of the lever lower receiver 12 and inserted. Then, the rotary lever 10 is pushed in until the first and second bent portions 10c, 6 are fitted into the fitting recess 12a. In this state, the rotary lever 10 has a horizontal posture with the lower surface and side surfaces of all or part of the body portion 10b, the first bent portion 10c, the second bent portion 6, and the insertion portion 10d supported by the fitting recess 12a. Then, it can be rotated around the second bent portion 6 by pulling it up with respect to the lever lower support 12 with the grip portion 10a.

  Next, the engagement portion 9 and the insertion portion 10d of the rotating lever 10 and the insertion portion 56 of the lever lower support 12 are inserted into the opening 7 of the side wall 5 of the fixed vertical rail 28, and an operation formed between the arm portions 51 and 51. After inserting the operation cable 14 into the cable insertion opening 52 and fitting the spherical surface 51a to the hemispherical portion 8 of the stopper 15, the through hole 55a of the lever receiver 12 and the screw hole 45 of the side wall 5 of the fixed vertical rail 28 are aligned. Then, the tapping screw 54 is screwed. When the rotary lever 10 is inserted into the opening 7, the lever upper support 13 is not yet mounted. Therefore, as shown in FIG. 5A, the opening into which the rotary lever 10 and the lever lower receiver 12 are inserted. 7 is formed with a gap 11, and the engagement between the engaging portion 9, the operation cord 14 and the stopper 15 including the confirmation of the operation of the locking hook 40 from the outside of the side wall 5 of the fixed vertical beam 28 is formed by this gap 11. The suitability of the situation can be confirmed. In this case, when the stopper 15 is displaced in the vertical direction, the spherical surface 51a of the engaging portion 9 and the hemispherical portion 8 of the stopper 15 cannot be properly engaged, and the locking hook 40 does not operate normally. The immobilizer 44 is once loosened and the stopper 15 may be adjusted in position with respect to the longitudinal direction of the operation cord 14.

  Thereafter, as shown in FIG. 5A, the fitting portion 58 of the lever upper support 13 is inserted into the opening 7 along the insertion portion 10d of the rotating lever 10, and the upper surface of the second bent portion 6 and the bottom of the lever are inserted. By fitting the fitting recess 13a of the lever upper receiver 13 with a part of the side surface protruding from the fitting recess 12a of the receiver 12, the gap 11 is completely closed, and the through hole 13b of the lever upper receiver 13 is provided. Then, the tapping screw 54 is screwed into the screw hole 45 of the fixed vertical rail 28, whereby the assembly of the operating means 1 to the stopper 15 is completed. In this state, the rotary lever 10 is held by the lever receiver 46 so as to be vertically rotatable from a locked posture in which the body portion 10b is substantially horizontal to an unlocked posture in which the body portion 10b is inclined by rotation around the second bent portion 6.

  Further, in this state, in order to restrict the rotation of the rotary lever 10 from the locked position to the unlocked position, a safety plug 47 is fitted into the lever lower support 12. The safety plug 47 is a flat plate material having a width dimension that can be slidably contacted between the guide side walls 49 formed on the wide surface 48 of the rotary lever 10. The ridges 47a and 47a are formed by digging up the ridge. The ridge 47a is inserted into the fitting groove 51 of the lever receiver 12 when the safety plug 47 is slid from the grip 10a on the rotary lever 10 in the locked position, and is recessed on the lower surface side. The minute locking recess is resiliently locked to the minute locking projection protruding from the upper surface side of the fitting groove 51, thereby preventing the minute locking recess from coming into the fitting groove 51. In addition, a finger hook portion 47b extending upward in an inverted U shape is formed on the rear end portion of the safety plug 47 inserted.

  Therefore, when the safety plug 47 is moved in the horizontal direction from the grip portion 10 a side with respect to the upper surface of the body portion 10 b of the rotating lever 10 in the locked posture fitted to the lever lower support 12, the safety plug 47 is guided to the guide side wall 49. Then, when the insertion tip is pushed in until just before it comes into contact with the guide end wall 50, the minute locking recess and the minute locking projection do not come in contact with each other. The rotation regulation with respect to the rotary lever 10 by sandwiching the receiver 12 and the safety plug 47 is maintained. The display member 53 provided on the rotary lever 10 described above is covered and hidden by a safety plug 47 covering the rotary lever 10 and is instead engraved on a display member 59 formed on the surface of the safety plug 47 shown in FIG. "Pull out" is displayed on the outside.

  From this state, when a fire or the like occurs, first, reach out from the window 20 on any floor, put a finger on the finger hook portion 47b formed on the operation means 1 near the window 20, and put the safety plug 47 on. Pull out. This pulling direction is on the side of the window 20, that is, on the near side of the evacuees, so there is no fear of operation. The rotary lever 10 can be rotated by the removal of the safety plug 47, and then the rotary lever 10 is pulled upward by grasping the grip portion 10a. As shown in FIG. 6, the rotating lever 10 rotates the stopper 15 inside the fixed vertical rail 28 obliquely downward, but the hemispherical portion 8 of the stopper 15 absorbs the rotational movement of the engaging portion 9 by sliding contact with the spherical surface 51a. Therefore, the rotational operating force of the rotary lever 10 is reliably transmitted to the stopper 15 as the downward power, and the operating rope 14 is pulled downward. The pulled down operation cord 14 rotates the upper locking hook 40 in the direction of disengagement from the locked portion 39, that is, counterclockwise about the rotation shaft 60 shown in FIG. 6B.

  As shown in FIGS. 2 (a), 2 (b), and 6 (b), the movable side frame 35 that has lost support for the locked portion 39 due to the movement of the locking hook 40 from the horizontal position to the inclined position is used. Rotate vertically from the vertical posture to the usage posture due to its own weight. With the rotation of the movable side frame 35, the ladder support rod 23, which is restricted from moving toward the deployment position by the movable side frame 35, loses support and moves to the deployment position due to its own weight. The movement of the ladder support rod 23 to the unfolded position involves the rotation of the connecting link 27 to the horizontal posture side and the lowering operation of the ladder support rod 23. When the connecting link 27 reaches the horizontal posture, FIG. As shown by a two-dot chain line in (c), the locking piece 23a of the ladder support rod 23 is locked to the upper surface of the movable side frame 35, and thereafter, the load on the ladder support rod 23 is applied to the movable side frame 35. bear.

  As described above, when the ladder support rod 23 is moving along the pop-out direction guide portion 37a, the movable vertical rail 29 is moved laterally by the side wall surface of the pop-out direction guide portion 37a, that is, with respect to the building wall surface 22. Since the movement in the parallel direction is restricted, as shown by the two-dot chain line in FIG. 2C, the protruding direction follows the ladder support rod 23 while substantially maintaining the contact state with the ladder support rod 23. It moves in the guide part 37a. As shown in FIG. 2C, the restriction on movement to the movable vertical rail 29 is released when the ladder support rod 23 is completely moved to the unfolded position and the movable vertical rail 29 faces the horizontal guide portion 37b. Thereafter, the movable vertical rail 29 moves to the deployment position while moving laterally in the horizontal guide portion 37b.

  For the movement of the movable vertical beam 29 to the deployment position, the weight of the movable vertical beam 29 is also used, and the ladder beam 24 assumes a horizontal posture in a state where the movable vertical beam 29 has moved to the deployment position. The locking piece 29a is locked to the upper surface of the movable side frame 35, and the movable side frame 35 bears the load on the movable vertical rail 29 thereafter.

  In addition, when the sensing lever 33 rotates with the rotation of the lowermost ladder bar 24 ′ to the horizontal posture and the block body is retracted from the lower end surface of the auxiliary vertical bar 30, the auxiliary ladder device 26 that has lost its support has its own weight. Thus, it moves downward until the lower end comes into contact with the ground 21 to change from a non-use posture to a use posture. Thereafter, the load on the auxiliary ladder device 26 is borne by the ground 21.

  In this state, the ladder bar 24 faces the building wall 22 with a distance of about 50 cm substantially matching the length of the connecting link 27, and the refugee rides straight on the ladder device 3 arranged in front of the window 20. You can move and you can evacuate without fear at high altitude. Even if there is an obstacle on the ground 21, the lower end of the ladder device 3 is located above the ground 21. In this embodiment, the lower end of the movable vertical rail 29 is disposed about 2 m above the ground 21. For this reason, for example, even if there is annoying parking or the like, there is no hindrance to the deployment of the ladder device 3, and the auxiliary ladder device 26 is deployed from the lower end of the ladder device 3, so that the ground 21 or an obstacle is In some cases, you can descend safely over the obstacle. In addition, since one of the rotating levers 10 disposed near the windows 20 on each floor is operated to deploy the ladder device 3, an evacuee on a predetermined floor who notices a fire or the like deploys the ladder device 3. In addition to the victims on the floor, the victims on any floor existing on the deployment of the ladder device 3 can evacuate using the ladder device 3 at the same time. .

  In this embodiment, since the rotary lever 10 is also arranged on the fourth floor located above the locking hook 40, the operating force is transmitted from the locking hook 40 to the rotary lever 10 on the fourth floor. Instead of the operation cord 14, a member that does not buckle is erected as the member 4. When the upper end of the frame or the like is pushed downward by the rotation of the rotary lever 10 on the fourth floor, the locking hook 40 is pressed by the lower end to rotate in the disengagement direction.

  7 and 8 show another embodiment of the present invention. In this embodiment, the same constituent elements as those in the above-described embodiment are denoted by the same reference numerals in the drawing, and description thereof is omitted. In this embodiment, the stopper 15 of the operating force transmission member 4 is formed by bending a metal plate and a stopper body 63 formed by welding a bolt 62 to a stopper fitting 61 formed by bending a metal plate. The gripper 64 is attached to the control cord 14 by being sandwiched between the stopper main body 63 and the grip bracket 64 in a state where the control cord 14 is wound around the shaft portion 62 a of the bolt 62.

  As shown in FIG. 8A, the stopper main body 63 is formed by bending a distal end portion spirally extending in a symmetric direction from a facing peripheral portion of a flat washer-like metal plate material into a U-shape on the back side. Stopper bracket 61, hexagon bolt 62 provided with a shaft portion 62a penetrating a hole provided in the center of the stopper bracket 61, and external toothed teeth through which the shaft portion 62a of the hexagon bolt 62 is inserted so as to sandwich the stopper bracket 61 It is formed by welding and fixing the washer 65. On the back side of the stopper fitting 61, a toothed washer 65 is fixed inside the pair of bent portions 61a so as to communicate with the central hole, and the shaft portion 62a of the hexagon bolt 62 extends from the surface side of the stopper fitting 61 to the hole. And penetrates the toothed washer 65 on the back side like a skewer and protrudes further to the back side than the bent portion 61a.

  On the other hand, the grip fitting 64 is formed in substantially the same shape as the stopper fitting 61. Accordingly, with the bent portion 64a of the grip metal fitting 64 opposed to the bent portion 61a of the stopper main body 63, the shaft portion 62a of the stopper main body 63 is inserted into the hole of the grip metal fitting 64, and the grip metal fitting 64 or the stopper main body 63 is appropriately attached. By rotating and adjusting the position, the bent portions 61a and 64a can be alternately arranged in the circumferential direction of the shaft portion 62a. Further, by further adjusting the position, as shown in FIG. 8C, an operation slightly wider than the diameter of the operation cord 14 between the bent portion 64a of the grip metal fitting 64 and the bent portion 61a of the stopper main body 63. The insertion insertion passage 42 can be formed, and the operation insertion insertion passage 42 extends over the shaft portion 62a because the bent portions 61a and 64a are formed point-symmetrically in the grip fitting 64 and the stopper main body 63, respectively. A pair is arranged on a straight line.

  When fixing the stopper 15 to the operation cord 14, first, the operation cord 14 is wound around the shaft portion 62 a of the stopper main body 63. As shown in FIG. 8B, the operation rope 14 suspended in the vertical direction from the locking hook 40 (not shown) is attached to the toothed washer 65 near the base end portion of the shaft portion 62a, that is, on the back side of the stopper main body 63. One side is in contact with the saw tooth of the toothed washer 65 when it is wound around one turn and slightly pulled out from the winding part, and is pulled out to the outside of the stopper body 63 through the bent portions 61a and 61a. Extend in the direction.

  Next, as shown in FIG. 8 (c), another toothed washer 65 'is attached to the shaft portion 62a so as to sandwich the operation cord 14 together with the stopper main body 63, and then the grip fitting 64 is assembled. The shaft portion 62a is inserted into the hole provided in the center of the grip fitting 64 with the bent portions 64a and 64a of the grip fitting 64 facing the stopper main body 63, and the assembly position is adjusted at this time, A pair of operation insertion passages 42 arranged in the vertical direction are formed between the bent portion 64a of the grip metal fitting 64 and the bent portion 61a of the stopper main body 63, and the operation insertion insertion passage 42 is connected to the shaft portion 62a. The operation cord 14 that is half-rotated is pulled up and down in the vertical direction.

  The operation of attaching the stopper 15 to the operation cord 14 is finished by finally tightening the shaft portion 62a protruding from the grip metal fitting 64 with a nut 66 as shown in FIG. 8 (d). The nut 66 is clamped between the toothed washers 65 and 65 ′ from both sides, and is sandwiched between the stopper body 63 and the grip fitting 64 and passes through the operation insertion passage 42 formed between the bent portions 61 a and 64 a. Then, it is pulled out from the top and bottom of the stopper 15 along the vertical direction. Therefore, the operation cord 14 wound around the shaft portion 62a is pulled when the bent portions 61a and 64a of the stopper 15 are pressed downward by the engaging portion 9 of the rotating lever 10 (not shown), and the shaft portion 62a is pulled. The frictional resistance against the shaft portion 62a is further increased, and the stopper main body 63 and the grip fitting 64 are tightened by the nut 66 while being sandwiched between the toothed washers 65 and 65 ′, whereby the toothed washers 65 and 65 ′. Since the saw blade is pierced from both sides, it is fixed very firmly to the stopper 15 and does not shift in the longitudinal direction of the operation cord 14.

  In this embodiment, the case where a single shaft portion 62a around which the operation cord 14 is wound is formed on the stopper 15, but a plurality of shaft portions 62a are formed as shown in FIGS. 8 (e) and 8 (f). You can also By forming the two shaft portions 62a and 62a on the stopper main body 63, the operation cord 14 can be continuously wound around the shaft portion 62a, and a larger number of saw teeth can be provided on the operation cord 14. It can be pierced and the frictional resistance when the operating cord 14 is pulled can be further increased. Further, by forming the two shaft portions 62a and 62a vertically, the width of the stopper 15 is not changed compared to the case where the number of the shaft portions 62a is one. The frictional resistance can be increased.

It is a figure which shows this invention, (a) is a front view, (b) is a side view. It is operation | movement explanatory drawing of a ladder apparatus, (a) is a front view, (b) is a side view, (c) is a 2C arrow view of (a), and is a figure which shows the state which has a movable side frame in a use attitude | position. It is. It is a figure explaining the assembly | attachment procedure to the operation force transmission member of an operation means, and is an exploded perspective view before assembly | attachment. It is a figure explaining the assembly | attachment procedure to the operation force transmission member of an operation means, and is a perspective view which shows an assembly state. It is principal part sectional drawing explaining the attachment procedure to the fixed vertical beam of an operation means, (a) is a figure which shows the state before a lever top holder attachment, (b) is a figure which shows the state which the attachment operation was completed. It is a figure which shows operation | movement of an operation means, (a) is principal part sectional drawing, (b) is a figure explaining operation | movement of a latching hook by 6B arrow directional view of (a). It is a perspective view which shows other embodiment of a stopper. It is a perspective view explaining the assembly | attachment procedure of a stopper and an operation rope, (a) is a figure which shows a stopper main body, (b) is a figure which shows the state which entangled the operation rope, (c) shows the state which attached the grip metal fitting. FIG. 4D is a diagram showing the assembly completion state, FIG. 4E is a modification example of the other embodiment, showing the stopper body, and FIG. 5F is a modification example of the other embodiment, and the assembly completion state. FIG.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Operation means 2 Unfolding means 3 Ladder apparatus 4 Operating force transmission member 5 Cover body 6 Bending part 7 Opening part 8 Engaged part 9 Engaging part 10 Rotating lever 11 Gap 12 Lever support body 13 Gap closing member 14 Long member 15 Engagement piece

Claims (3)

An evacuation ladder device formed by covering an operation force transmission member that transmits an operation force to the operation means as a drive force to the deployment means and moves the ladder device from the storage position to the deployment position with a cover body,
The operating means includes an arc-shaped bent portion, and a rotating lever that engages an engaging portion with an engaged portion formed in the operating force transmission member through an opening portion formed in the cover body,
A lever support body that is mounted on the surface of the cover body and supports a bent portion of the rotating lever by securing a gap for visually observing the engaging portion of the rotating lever in the opening;
After the engagement with the operating force transmission member is completed, the bent portion of the rotating lever exposed from the cover body is abutted from the opposing direction of the lever support body to be mounted on the cover body surface, and the gap is closed to support the lever. An evacuation ladder device having a gap closing member that rotatably holds a rotating lever together with a body main body. Before SL operating force transmitting member is an elongated member connected to expansion means,
The escape ladder apparatus according to claim 1 , further comprising: an engaged piece that is fixed to the elongated member so that the position thereof can be adjusted, and an engaged portion that is engaged with an engaging portion of the rotary lever is formed . Rotation predetermined continuous length to connect the elongate member, the engaged portion formed on the engaging pieces attached to the variable position in the position set with respect to the long elongated member relative to said deployment means Ri Na by engaging the engagement portion of the lever to drive the expansion means placed on the upper floor side by an operation of the elongated member from the lower floor side, move to the deployed position the ladder device from the retracted position The ladder apparatus for evacuation according to claim 1 or 2 .