JP2013252968A - Safety fence of elevator - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a safety fence of an elevator that can achieve a stable installation condition regardless of an on-site installation environment.SOLUTION: A safety fence installed in an elevator provided with a pair of double-hinged car stop doors 3a and 3b disposed between a hoistway 1 and a car stop 2 includes: a frame body 10 (entry prevention member) disposed on a car stop 2 side in relation to the pair of the car stop doors 3a and 3b and spanning the pair of the car stop doors; a regulation part for regulating an opening operation of the car stop doors 3a and 3b so that the pair of the car stop doors 3a and 3b do not open beyond the horizontal width L of the frame body 10; and a pressure part for pressing the frame body 10 against the faces on the car stop 2 side of the pair of car stop doors 3a and 3b respectively.

Description

  The present invention relates to a safety fence for an elevator installed on a landing door.

  In general, the landing door provided in the elevator hall is designed to open in conjunction with the passenger door provided in the elevator that goes up and down in the hoistway. Closed until the car door opens. However, depending on the work contents of the elevator maintenance work, even if the car has not arrived at the landing, the worker may perform work by opening the landing door with a dedicated tool.

  At that time, since the opening of the hoistway is opened from the landing side, it is necessary to ensure sufficient safety for a passerby who passes in front of the landing door including the worker. Workers who perform such work have traditionally taken measures such as installing safety fences firmly with anchor bolts in front of the landing doors, but it has become a problem to spend a lot of time on this setup work. It was.

  In view of this, a pair of safety device main bodies, each of which has a vertical column and a horizontal arm, and the horizontal arms are arranged to face each other, and a plurality of bolt insertion holes, are configured to be detachable from the horizontal arms, and are opposed to each other. Elevator hall entrance / exit safety provided with a connecting member that connects and integrates the safety device main body by connecting the arms, and a support device that is configured by screwing a bolt to a female screw or nut provided on the upright column. An apparatus has been proposed (see, for example, Patent Document 1).

  Specifically, in this prior art elevator hall entrance / exit safety device, an arbitrary hole is selected from a plurality of bolt insertion holes provided in the connecting member, and the lateral arm and the connecting member are connected via the hole. By fixing with bolts, the length of the integrated safety device body in the entrance / exit entrance direction (length in the opening / closing direction of the landing door) can be adjusted, and pressing force is applied to the entrance / exit frame with the bolts constituting the support device In addition, the safety device body integrated by the reaction force is attached to the hall entrance / exit frame. An elastic body is interposed between the support device and the hall entrance / exit frame.

Japanese Utility Model Publication No.59-2063

  As described above, the conventional elevator hall entrance / exit safety device disclosed in Patent Document 1 is integrated with the connecting member by using the frictional force acting between the elastic body of the support device and the hall entrance / exit frame. Since the safety device main body is held by the landing doorway frame, the holding force for holding the safety device main body is the site of the support device, the members constituting the landing doorway frame, the bolts of the support device against the landing doorway frame, etc. Depends on the installation environment. Therefore, depending on the local installation environment, if the reaction force that the support device receives against the pressing force to the landing entrance frame cannot be obtained sufficiently, the holding force of the integrated safety device main body becomes small and the landing entrance / exit There is a possibility that it may be easily detached from the frame. Therefore, the safety device at the elevator hall entrance / exit of the prior art is not preferable because the installation state of the integrated safety device body becomes unstable depending on the local installation environment.

  The present invention has been made in view of the actual situation of the prior art, and an object thereof is to provide an elevator safety fence capable of realizing a stable installation state regardless of the local installation environment.

  In order to achieve the above-described object, the elevator safety fence according to the present invention has a door end at a door-to-door portion connected to a pair of double-opening landing doors or entrance / exit frames arranged between a hoistway and a landing. It is provided in an elevator having a single-opening type landing door to be abutted, arranged on the landing side with respect to the landing door, and spanned between the pair of double-opening type landing doors or the entrance frame and the landing door An entry preventing member, a restricting portion for restricting an opening operation of the landing doors so that the landing doors are not opened more than a width of the entry preventing member, and the entry preventing member on the landing side of the landing doors. And a pressing portion that presses the surface.

  According to the elevator safety fence of the present invention, a stable installation state can be realized regardless of the installation environment. Problems, configurations, and effects other than those described above will become apparent from the following description of embodiments.

It is a front view which shows the structure of 1st embodiment of the safety fence of the elevator which concerns on this invention. It is the figure seen from the arrow A direction shown in FIG. It is sectional drawing which follows the BB line shown in FIG. It is sectional drawing which follows the CC line | wire shown in FIG. It is an enlarged view of the D section shown in FIG. It is a figure explaining the installation operation | work of the safety fence which concerns on this embodiment, and is a figure which shows the state which has arrange | positioned the fixing rod to the perpendicular direction. It is the figure seen from the arrow E direction shown in FIG. It is sectional drawing which follows the FF line | wire shown in FIG. It is a figure explaining the installation operation | work of the safety fence which concerns on this embodiment, and is a figure which shows the state which has arrange | positioned the fixing rod to a horizontal direction. It is the figure seen from the arrow G direction shown in FIG. It is a figure explaining the installation work of the safety fence which concerns on this embodiment, and is a figure which shows the state which attached the frame and the fixing rod to the landing door. It is a front view which shows the structure of 2nd embodiment of the safety fence of the elevator which concerns on this invention. It is the figure seen from the arrow I direction shown in FIG. It is a figure which shows the state in transfer to the folding state of 2nd embodiment of the safety fence of the elevator which concerns on this invention. It is a figure which shows the state in transfer to the folding state of the safety fence in 1st embodiment of this invention. It is a front view which shows the structure of 3rd embodiment of the safety fence of the elevator concerning this invention. It is the figure seen from the arrow J direction shown in FIG. It is a figure which shows the case where the vertical frame shape of an entrance / exit frame differs in the form shown in FIG.

  EMBODIMENT OF THE INVENTION Hereinafter, the form for implementing the elevator safety fence which concerns on this invention is demonstrated based on figures.

<Embodiment 1>
One embodiment of an elevator safety fence according to the present invention is applied to, for example, an elevator installed in a building. Although this elevator is not shown in figure, the elevator arranged in the hoistway, the counterweight suspended in the hoistway via the main rope, and the hoisting machine around which the main rope is wound And. When the hoisting machine is driven and rotated, the car is moved up and down in the hoistway relative to the counterweight according to the rotation direction of the hoisting machine.

  The elevator has a pair of double-opening type landing doors 3a and 3b arranged between the hoistway 1 and the landing 2 (for convenience, the left landing door 3a shown in FIG. 1 is used, and the right landing door shown in FIG. 3b) and a pair of double-opening type car doors (not shown) provided on the car, which are arranged to face the hall doors 3a and 3b when the car arrives at the hall 2, respectively. These landing doors 3a, 3b and an interlocking device (not shown) for interlocking the opening / closing operation of the car door are provided.

  The landing doors 3a and 3b are formed at the end portions facing each other as shown in FIG. 3, for example, and projecting pieces 3A1 and 3B1 projecting toward the hoistway 1 (for convenience, the left landing door 3a shown in FIG. 3A1 and the protruding piece of the right landing door 3b shown in FIG. 3 is denoted as 3B1). Similarly, the landing doors 3a and 3b are formed, for example, at end portions on the opposite side of the protruding pieces 3A1 and 3B1 and protrude to the hoistway 1 side (for convenience, on the left side shown in FIG. 3A2 is a protruding piece of the landing door 3a, and 3B2 is a protruding piece of the right landing door 3b shown in FIG.

  Further, the elevator is erected between the landing 2 and the hoistway 1 on the landing floor 6 and walls 4a and 4b that partition the landing 2 and the hoistway 1 (for convenience, the left wall shown in FIG. 4a, the right wall shown in FIG. 1 is labeled 4b), and the entrance / exit frames 5a, 5b forming the open ends of these walls 4a, 4b (for convenience, the left entrance / exit frame shown in FIG. 1 is attached to the right entrance / exit frame shown in FIG.

  The hall 2 is laid between the walls 4a, 4b of the hall 6 and the hoistway 1 along the opening / closing directions (left and right directions shown in FIG. 1) of the hall doors 3a, 3b. It has a sill 7 for guiding. On the other hand, the landing doors 3a and 3b are provided at the lower ends so as to protrude downward, and are slidably engaged with the grooves of the sill 7 of the landing floor 6 (shown in FIG. 1 for convenience). The left door shoe 8a and the right door shoe 8b shown in FIG.

  Further, the landing doors 3a and 3b are, as shown in FIG. 3, for example, folded end portions 3a1 formed by bending the tips of the protruding pieces 3A1, 3A2, 3B1, and 3B2 of the landing doors 3a, 3b inward of the door. 3a2, 3b1, 3b2 (for convenience, the left folded end shown in FIG. 3 is labeled 3a1, 3a2, and the right folded end shown in FIG. 3 is labeled 3b1, 3b2). Thus, in the cross section which looked at the landing doors 3a and 3b from the perpendicular direction, the edge part of the landing doors 3a and 3b is comprised by the cross-sectional U-shape.

  As the above-described interlocking device, an engagement piece is provided on the car door, and an engagement roller (not shown) is provided on one of the landing doors 3a and 3b. Further, the landing doors 3a and 3b are provided with a belt that synchronizes the opening and closing operations of the landing doors 3a and 3b, and a locking device that locks the landing doors 3a and 3b so that they cannot be opened when the engagement roller is not driven. It is constituted by these members. Further, the landing doors 3a and 3b are provided with a door closing direction force adding device that constantly applies a force toward the closing direction of the landing doors 3a and 3b. When the car arrives at the landing 2, the engagement piece of the car door is engaged with the above-described engagement roller, and the locking roller is released by driving the engagement roller. One of the provided landing doors 3a, 3b is opened in the opening direction. Then, the landing doors 3a and 3b perform the opening operation in conjunction with the car door against the door closing direction force applying device while synchronizing with the belt. At that time, the door shoes 8a and 8b of the landing doors 3a and 3b slide in the groove of the sill 7, so that the landing doors 3a and 3b are guided by the sill 7 and run on the sill 7.

  One embodiment of the elevator safety fence according to the present invention is a frame body that is disposed closer to the landing 2 side than the pair of landing doors 3a and 3b, and is an entry blocking member that spans the pair of landing doors 3a and 3b. 10 and a width L of the frame 10 as described later, that is, a width of the frame 10 along the opening / closing direction of the landing doors 3a and 3b (width in the left-right direction of the frame 10 shown in FIG. 1). A restricting portion for restricting the opening operation of the landing doors 3a and 3b so that the doors 3a and 3b do not open, and the frame 10 are pressed against the surface on the landing 2 side of the pair of landing doors 3a and 3b. And a pressing portion.

  Specifically, the frame body 10 includes, for example, a lower frame 11 disposed on the landing 2 and a pair of vertical frames 12a and 12b erected on both ends of the lower frame 11 (for convenience, FIG. The left vertical frame shown in FIG. 1 is labeled 12a, the right vertical frame shown in FIG. 1 is labeled 12b), the upper frame 13 connecting the upper portions of these vertical frames 12a and 12b, the lower frame 11, and a pair of vertical frames It has the partition frame 14 which partitions off the space formed between the frames 12a and 12b and the upper frame 13.

  For example, both ends of the partition frame 14 are provided in the center of the pair of vertical frames 12a and 12b, and the middle frame 15 arranged in parallel with the lower frame 11 and the upper frame 13 and both ends of the vertical frame 12b. The brace 16 is provided at each of the upper end and the lower end of the vertical frame 12a, and is arranged so as to intersect with the midsection 15.

  The lower frame 11 includes, for example, a sill fixing bracket 11 a that is provided so as to protrude downward in the center portion and engages with a groove of the sill 7 of the landing floor 6 to fix the lower portion of the frame body 10. Further, as shown in FIG. 2, the upper frame 13 is attached to the side surface on the hoistway 1 side with a through-hole 13a described later, and slides on the surface on the landing 2 side of the landing doors 3a and 3b. 36a and 36b (for convenience, the left sliding member shown in FIG. 2 is denoted by 36a, and the right sliding member shown in FIG. 2 is denoted by 36b).

  For example, as shown in FIG. 2, the pressing portion described above is disposed closer to the hoistway 1 than the pair of landing doors 3 a and 3 b, and spans between the pair of landing doors 3 a and 3 b, so that the pair of landing doors 3 a and 3 b A support 17 that supports 3b from the hoistway 1 side, and a support 18 that connects the support 17 and the frame 10 and holds the pair of landing doors 3a and 3b to the support 17 and the frame 10, respectively. And have.

  Here, since the support body 17 is symmetrical with respect to the center line (dashed line) shown in FIG. 2 in the following description, the configuration and function of the left side (D section) among the main parts of the support body 17 in the following description. The description of the configuration and function on the right side will be omitted.

  As shown in FIGS. 2 and 4, for example, the support body 17 includes a fixed rod 21 disposed in parallel with the upper frame 13 of the frame body 10, and the fixed rod 21 is formed of a rectangular parallelepiped, for example, in the longitudinal direction. Is set to be equal to the horizontal width L of the frame 10, that is, the length of the upper frame 13 in the longitudinal direction. Furthermore, the fixed rod 21 includes, for example, a long hole 21A formed along the longitudinal direction at a position separated from the center, and the longitudinal direction is parallel to the opening / closing direction of the pair of landing doors 3a and 3b. It is arranged.

  Further, for example, as shown in FIG. 5, the support member 17 is interposed between the folded end portion 3 a 1 of the landing door 3 a and the fixed rod 21 so as to face the fixed rod 21, and the folded ends of these landing doors 3 a. It is arranged between the first plate 25 extending along the longitudinal direction of the fixed rod 21 relative to the portion 3a1 and the pair of landing doors 3a and 3b, and contacts the surface of the first plate 25 on the frame 10 side. A second plate 26 that is in contact with each other and a sliding member 35 that is attached to the surface of the first plate 25 on the fixed rod 21 side and slides with respect to the fixed rod 21 are provided.

  The first plate 25 includes a pair of through holes 25 </ b> A <b> 1 and 25 </ b> A <b> 2 that are spaced apart along the longitudinal direction of the fixed rod 21. Similarly, the second plate 26 includes a pair of through holes 26 </ b> A <b> 1 and 26 </ b> A <b> 2 that are spaced apart along the longitudinal direction of the fixed rod 21. Moreover, the edge part by the side of the landing door 3a among the edge parts of the 2nd plate 26 is bend | folded and formed toward the landing 2 side.

  Further, the support body 17 is, for example, a guide bolt 28 for inserting the shaft portion 28a2 from the landing 2 side into the through hole 26A1 of the second plate 26, the through hole 25A1 of the first plate 25, and the long hole 21A of the fixed rod 21. And a butterfly bolt 30 for inserting the shaft portion 30a2 from the landing 2 side into the through hole 26A2 of the second plate 26, the through hole 25A2 of the first plate 25, and the long hole 21A of the fixed rod 21. .

  Further, the support body 17 is in contact with, for example, the side surface of the fixed rod 21 opposite to the first plate 25, and the shaft portion 28a2 of the guide bolt 28 and the shaft portion 30a2 of the butterfly bolt 30 are respectively screwed together. The plate nut 27 in which the female screws 27a1 and 27a2 are formed, and a lock nut 29 that enables the head 28a1 of the guide bolt 28 and the second plate 26 to be fixed apart from each other. .

  For example, as shown in FIG. 2, the above-described sandwiching portion 18 has through-holes 13 a and 21 a drilled in the respective central portions of the upper frame 13 and the fixed rod 21 of the frame body 10, and is raised and lowered to these through-holes 13 a and 21 a. The shaft portion 20b is inserted from the road 1 side toward the landing 2 side, and the head 20a is disposed closer to the hoistway 1 side than the fixed rod 21 and the screw 20 is screwed into the shaft portion 20b of the bolt 20. It is comprised from the joint member.

  For example, the screw member is disposed between the upper frame 13 and the fixed rod 21 in the shaft portion 20 b of the bolt 20, and the nut 22 that adjusts the tightening degree of the fixed rod 21 and the shaft portion 20 b of the bolt 20. It is arranged on the landing 2 side with respect to the upper frame 13, and includes a fixed rod 21 and a wing nut 23 that fastens the upper frame 13 to the landing doors 3a and 3b. The length of the shaft portion 20b of the bolt 20 is, for example, the side surface of the fixing rod 21 on the head 20a side of the bolt 20 and the side surface of the upper frame 13 of the frame body 10 on the wing nut 23 side. Is set larger than the interval H.

  For example, as shown in FIG. 5, the restricting portion described above is provided on the support 17 and has a locking portion that locks the pair of landing doors 3a and 3b. For example, the locking portion includes a bent piece 25a in which an end portion of the first plate 25 on the side away from the bolt 20 is bent toward the landing 2 side and an end portion of the second plate 26 described above. Is provided with a bent piece 26a that is bent toward the landing 2, and when the landing doors 3a and 3b are to be opened, the bent piece 25a is engaged, and the landing doors 3a and 3b are In the case of closing, the bent piece 26a of the second plate 26 is engaged.

  Further, the locking portion is a U-shaped interposition between the end portion of the second plate 26 on the landing door 3a side, the first plate 25a, and the protruding piece 3A1 of the landing door 3a. An elastic body 31 is provided. The bent piece 25a of the first plate 25 and the bent piece 26a of the second plate 26 are engaged with the protruding piece 3A1 of the landing door 3a via the elastic body 31.

  Next, the installation work of the elevator safety fence according to the present embodiment will be described in detail with reference to FIGS.

  In one embodiment of the elevator safety fence according to the present invention, for example, an operator first opens the landing doors 3a and 3b so that the distance between the opposite ends of the landing doors 3a and 3b is, for example, about 10 cm. Door. Next, the operator loosens the butterfly bolt 30 fastened to the plate nuts 27a1 and 27a2, and the first plate 25, the second plate 26, the guide bolt 28, according to the interval between the landing doors 3a and 3b that are opened. The lock nut 29, the butterfly bolt 30, the elastic body 31, and the sliding member 35 are moved along the longitudinal direction on the side surface of the fixed rod 21 on the landing 2 side, and the first plate 25 and the second plate 26 are moved. The positions of the guide bolt 28, the lock nut 29, the butterfly bolt 30, the elastic body 31, and the sliding member 35 are adjusted.

  Next, the operator tightens the butterfly bolt 30 to adjust the first plate 25, the second plate 26, the guide bolt 28, the lock nut 29, the butterfly bolt 30, the elastic body 31, and the slide at the adjusted position. The material 35 is fixed to the fixed rod 21. Similarly, this operation is performed on the first plate 25, the second plate 26, the guide bolt 28, the lock nut 29, the butterfly bolt 30, the elastic body 31, and the sliding member 35 on the right side. In this operation, the distance between the head of the guide bolt 28 and the lock nut 29 is the same as the distance between the head of the guide bolt 28 and the lock nut 29 when the lock nut 29 is fully tightened. When the shortest interval is set, the height of the bent piece 25a or the bent piece 26a of the second plate 26 is adjusted and fixed so as to be in a range larger than the interval added to the shortest interval. Good. By performing such work, even if the landing doors 3a and 3b end portions are engaged with the locking portions, even if the butterfly bolt 30 is accidentally loosened too much, the locking portions are prevented from falling off. be able to.

  Thereafter, the operator loosens the wing nut 23 fastened to the bolt 20, rotates the fixing rod 21 around the axis of the bolt 20, and aligns the longitudinal direction of the fixing rod 21 with the vertical direction as shown in FIG. Deploy. On the other hand, as shown in FIG. 8, the worker engages the sill fixing bracket 11 a of the lower frame 11 of the frame body 10 with the groove of the sill 7.

  Then, the operator pushes the upper part of the frame 10 from the landing 2 side to the hoistway 1 side as shown in FIG. 7, thereby pushing the fixed rod 21 between the opened landing doors 3a and 3b to the hoistway 1 side. The upper frame 13 of the frame 10 is pressed against the surface on the landing 2 side of the landing doors 3a and 3b. Next, the operator rotates the fixing rod 21 around the axis of the bolt 20 again, so that the longitudinal direction of the fixing rod 21 is horizontal, that is, the upper frame of the frame body 10 as shown in FIGS. 13 is arranged in parallel with. Such rotation of the fixed rod 21 may be performed by loosening the nut 22, but the nut 22 is basically tightened to fix the fixed rod 21 to the bolt 20, It is easy to rotate the bolt 20 by rotating the bolt 20 relative to the upper frame 13 by loosening the wing nut 23.

  Thereafter, the operator tightens the wing nut 23 to bring the bent piece 25a of the first plate 25 and the bent piece 26a of the second plate 26 through the elastic body 31 as shown in FIG. Engage with the protruding pieces 3A1 and 3B1 of 3a and 3b, adjust the degree of opening of the landing doors 3a and 3b, and tighten the wing nuts 30 of the left and right locking parts to fix the locking parts on the fixing rod 21. Then, the installation work of the elevator safety fence according to the present embodiment is completed. In addition, the wing nut 23 is tightened, and the gap between the head of the guide bolt 28 and the lock nut 29 is set to an appropriate state in a state where the engaging portions are engaged with the protruding pieces 3A1 and 3B1 of the landing doors 3a and 3b. When the wing nut 30 is loosened, the projecting pieces 3A1 and 3B1 are engaged with the locking portion by the sliding material 35 provided on the locking portion and the sliding materials 36a and 36b provided on the upper frame 13. The opening / closing operation of the landing doors 3a and 3b can be performed within a specific range while being maintained, that is, with the safety fence of the present embodiment set on the landing doors 3a and 3b.

  According to the present embodiment configured as described above, even if the landing doors 3a and 3b are opened, the frame 10 is pressed against the surface of the landing doors 3a and 3b on the landing 2 side by tightening the wing nut 23. Therefore, the frame 10 can be sufficiently held with respect to the landing doors 3a and 3b. In particular, in the present embodiment, the landing door 3a, the bent piece 25a of the first plate 25 and the bent piece 26a of the second plate 26 functioning as a restricting portion and the protruding pieces 3A1 and 3B1 of the landing doors 3a and 3b. Since the opening and closing operations of 3b are restricted, the interval between the landing doors 3a and 3b can be limited within the range of the lateral width L of the frame 10, and the frame 10 with respect to the landing doors 3a and 3b. The pressing area of the upper frame 13 can be ensured. Thereby, it can suppress that the frame 10 does not incline with respect to the landing doors 3a and 3b, and the safety fence which concerns on this embodiment is removed.

  Thus, this embodiment does not use the walls 4a and 4b and the entrance / exit frames 5a and 5b that divide the hall 2 and the hoistway 1 but uses the hall doors 3a and 3b that can be adjusted in opening and closing. Therefore, the installation state does not change greatly even if the local installation environment is different. Therefore, since this embodiment can realize a stable installation state regardless of the installation environment, high reliability can be ensured.

  In this embodiment, the fixed rod 21 and the frame body 10 are integrally connected by the bolt 20 and the wing nut 23, and the first plate 25 and the second plate 26 are attached by the guide bolt 28 and the wing bolt 30. Therefore, while supporting the protruding pieces 3A1 and 3B1 of the landing doors 3a and 3b from the hoistway 1 side with the first plate 25, the upper frame 13 of the frame body 10 is the surface on the landing 2 side of the landing doors 3a and 3b. Can be pressed from the landing 2 side. Therefore, since the sliding members 36a and 36b of the upper frame 13 are pressed perpendicularly to the surface of the landing doors 3a and 3b on the landing 2 side, the upper frame 13 of the landing doors 3a and 3b is on the landing 2 side. Inclination with respect to the surface can be further suppressed. Thereby, the pressing force of the frame 10 to the landing doors 3a and 3b can be increased.

  In particular, in the present embodiment, the first plate 25 and the upper frame 13 of the frame body 10 are clamped from both sides of the landing 2 and the hoistway 1 with respect to the landing doors 3a and 3b only by tightening the wing nut 23. Since it is good, the frame 10 can be easily attached to the landing doors 3a and 3b. Thereby, workability | operativity in the attachment work of the frame 10 can be improved.

  Moreover, since the landing doors 3a and 3b are locked by the bent pieces 25a of the first plate 25 even if the landing doors 3a and 3b are about to open, the opening operation of the landing doors 3a and 3b can be reliably restricted. Further, when the folded ends 3a1 and 3b1 of the protruding pieces 3A1 and 3B1 of the landing doors 3a and 3b come into contact with the bent pieces 25a of the first plate 25, the position in the longitudinal direction of the fixed rod 21 is fixed. The stability of the attachment state of the frame 10 with respect to the doors 3a and 3b can be improved.

  Further, in this embodiment, the sill fixing bracket 11a of the lower frame 11 is engaged with the groove of the sill 7, so that the lower portion of the frame body 10 can be fixed in the axial direction of the bolt 20. Accordingly, the lower frame 11 effectively functions as a base of the frame body 10 without being displaced in the axial direction of the bolt 20, so that a stable standing state of the frame body 10 with respect to the landing floor 6 can be realized. it can. Furthermore, when the operator presses the upper frame 13 of the frame 10 against the surface on the landing 2 side of the landing doors 3a and 3b, the sill fixing bracket 11a serves as a fulcrum, so it is necessary to grasp the lower part of the frame 10 There is no. Thereby, the workability | operativity in the attachment operation | work of the frame 10 can be improved more.

  Further, in the present embodiment, a bent piece 25a that protrudes toward the landing 2 side is provided at the end of the first plate 25, and this bent piece 25a is turned back to the protruding pieces 3A1 and 3B1 of the landing doors 3a and 3b. Since the end portions 3a1 and 3b1 are engaged with each other, the first plate 25, the fixing rod 21, and the upper frame 13 of the frame body 10 can be held integrally. Thereby, the upper frame 13 of the frame 10 can be firmly attached to the landing doors 3a and 3b.

  In particular, since the bent piece 25a of the present embodiment is easily formed by bending the first plate 25, the costs associated with the installation work of the safety fence according to the present embodiment and the labor of the operator are reduced. can do.

  Further, in the present embodiment, the frame 10 is erected on the landing 2 side with respect to the landing doors 3a and 3b, and the lower frame 10 and the pair of vertical frames 12a and 12b support the upper frame 13, thereby Since the form of the upper part of the body 10 is maintained, even if the upper frame 13 is pressed against the landing doors 3a and 3b whose strength is guaranteed, the frame body 10 can be prevented from being bent. Further, in the present embodiment, the space formed between the lower frame 11, the vertical frames 12 a and 12 b, and the upper frame 13 is partitioned by the middle 15 and the brace 16, so that the middle 15 Since the brace 16 serves as a safety fence, the safety of workers and passers-by on the landing 2 side can be dramatically improved.

  In the present embodiment, the fixing rod 21 can be rotated around the axis of the bolt 20 by loosening the wing nut 23 screwed with the shaft portion 20 b of the bolt 20. By matching the direction, it can be easily passed from the landing doors 3a, 3b to the hoistway 1 side. Therefore, when the elevator maintenance work can be performed without opening the landing doors 3a and 3b so much, the interval between the landing doors 3a and 3b does not need to be increased unnecessarily, and high convenience is ensured. Can do.

  In the present embodiment, a long hole 21A is formed along the longitudinal direction at a position spaced from the center of the fixing bolt 20, and a guide bolt 28, a butterfly bolt 30, and a plate nut 27 inserted through the long hole 21A. Thus, the first plate 25 and the second plate 26 are attached to the fixed rod 21, so that the first plate 25 and the second plate 26 are moved to the protruding piece 3A1 by loosening the butterfly bolt 30. , 3B1 is fixed between the bent piece 25a of the first plate 25 and the bent piece 26a of the second plate 26, and is slid on the fixed rod 21 with the sliding member 35 to It can be moved along the longitudinal direction. That is, even if the landing doors 3a and 3b are to be closed by the door closing direction force adding means, the protruding pieces 3A1 and 3B1 are engaged with the bent pieces 26a of the second plate 26, and the landing doors 3a and 3b are opened. For example, the protruding pieces 3 </ b> A <b> 1 and 3 </ b> B <b> 1 are engaged with the bent piece 25 a of the first plate 25, and can be moved along the longitudinal direction of the fixed rod 21. Accordingly, in the present embodiment, the position of the bent piece 25a of the first plate 25 from the central portion of the fixed rod 21 can be adjusted according to the distance between the landing doors 3a and 3b. Thus, even if the doors of the landing doors 3a and 3b are opened differently, it can be sufficiently adapted.

  Moreover, this embodiment is a dimension which can press the frame 10 to the surface of the landing doors 3a, 3b on the landing 2 side without increasing the lateral width L of the upper frame 13 of the frame 10 to the entrance / exit frames 5a, 5b. Therefore, it is possible to reduce the size and weight. Thereby, it is advantageous also in carrying work.

  In addition, this embodiment mentioned above was described in detail in order to demonstrate this invention easily, and is not necessarily limited to what is provided with all the demonstrated structures. For example, although the frame body 10 is used as the entry blocking member in the present embodiment, the frame body structure is not taken, and various shapes that can prevent entry into a rod-shaped member or a hoistway can be adopted. Further, a part of the configuration of an embodiment can be replaced with the configuration of another embodiment, and the configuration of another embodiment can be added to the configuration of an embodiment.

  Moreover, this embodiment demonstrates the case where the latching | locking part comprised the bending piece 25a by which the edge part on the side away from the volt | bolt 20 among the 1st plates 25 was bent toward the landing 2 side. However, the present invention is not limited to this case, and the locking portion includes, for example, a protruding piece that is attached to the end of the first plate 25 on the side away from the bolt 20 by welding or the like and protrudes toward the landing 2 side. You may do it.

<Embodiment 2>
Hereinafter, a second embodiment of the elevator safety fence according to the present invention will be described. In addition, the same code | symbol is attached | subjected to the member which has the same or similar function as Embodiment 1, and description is abbreviate | omitted. FIG. 12 is a front view showing the configuration of the elevator safety fence according to the present embodiment, and FIG. 13 is a view seen from the direction of arrow I shown in FIG.

  The elevator safety fence according to the present embodiment is disposed closer to the landing 2 than the pair of landing doors 3a and 3b, and is an upper frame 13 and a lower frame which are entry blocking members spanned between the pair of landing doors 3a and 3b. 11, two partitions which are connected to both ends of the upper frame 13 and the lower frame 11 and intersect in an X shape, intersecting frames 37a and 37b which also serve as vertical frames, and a landing door 3a as shown in FIG. , 3b is provided on the hoistway 1 side, and is provided with a support 17 and a pinching portion 18 which are pressing portions for pressing the upper frame 13 against the surface on the landing 2 side of the pair of landing doors 3a, 3b.

  FIG. 14 is a diagram showing a state in which the elevator safety fence according to the present embodiment is being transferred to the folded state of the second embodiment, and FIG. 15 is being transferred to the safety fence being folded in the first embodiment of the present invention. It is a figure which shows the state of. The safety fence according to the present embodiment has the above-described configuration, and by removing the two assembly bolts 38a and 38b shown in FIG. 12, the members can be folded together as shown in FIG. The length of can be made the same as or slightly longer than the length M of the intersecting frames 37a, 37b.

  On the other hand, in the case of the safety fence described in the first embodiment, in order to fold each member as it is, it is as shown in FIG. 15, and the length at this time is the upper frame 13 or the lower frame 11. And a length L + N obtained by adding the length L of the vertical frame 12a or the length N of the vertical frame 12b. Since the length M is shorter than the length L + N, when the safety fence having the same width L and height N is folded together, the safety fence according to the present embodiment can be made more compact.

  Further, in the present embodiment, the closing restriction portions 39a and 39b for restricting the closing operation of the landing doors 3a and 3b so that the pair of landing doors 3a and 3b are not closed with a predetermined opening dimension are provided on the upper frame 13 with a thumbscrew and a bolt. It is fixed and provided by. Further, the pair of landing doors is larger than the lateral width L of the upper frame 13 and the lower frame 11, that is, the width of the upper frame 13 along the opening / closing direction of the landing doors 3a and 3b (the width in the left-right direction of the upper frame 13 shown in FIG. 12). Opening restricting portions 40a and 40b for restricting the opening operation of the landing doors 3a and 3b are provided at both ends of the support body 17 as a pressing portion so that the doors 3a and 3b do not open.

  The support body 17 is connected to the upper frame 13 by bolts 20. As shown in FIG. 13, the opening restricting portions 40 a and 40 b disposed at both ends of the support body 17 are members having interference pieces protruding from the support body 17 toward the landing doors 3 a and 3 b, Fixed with screws. Therefore, when the landing doors 3a and 3b are opened, the folding portions 3a1 and 3b1 on the hoistway 1 side of the landing doors 3a and 3b are hooked, and the landing doors 3a and 3b are restricted from opening from the upper frame 13. .

  Further, the closing restriction portions 39a and 39b provided on the upper frame 13 are formed by a metal plate having an L-shaped cross section, and are perpendicular to the opening and closing direction of the landing doors 3a and 3b in a horizontal plane on the joint surface with the upper frame 13. A long hole extending in a certain direction is provided. Therefore, when the tightening state of the wing nut and the bolt is loosened, the closing restriction portions 39a and 39b can be slid in the direction perpendicular to the opening and closing direction of the landing doors 3a and 3b, and when the landing doors 3a and 3b are closed When the landing doors 3a and 3b are opened, the position can be moved so as to protrude toward the hoistway 1 side.

  About the attachment method of the safety fence in this embodiment which has such a structure, a different part from 1st embodiment is demonstrated. First, the operator opens the landing doors 3a and 3b with a slight gap that does not allow a person to enter, for example, about 10 cm, and sets the lower frame 11 and the upper frame 13 with respect to the landing doors 3a and 3b and opens them slightly. The support 17 is placed vertically from the landing doors 3a and 3b to the hoistway 1 side from the gap, and then the support 17 is placed in parallel with the upper frame 13 by the support frame 17 and the upper frame 13. The wing nut 23, which is the clamping part 18, is rotated until the doors 3a, 3b are lightly sandwiched, and the distance between the support frame 17 and the upper frame 13 is reduced by the bolt 20, and the landing doors 3a, 3b are further moved in this state. Open the door.

  At this time, the closing restricting portions 39a and 39b loosen the wing nuts and protrude to the landing 2 side to avoid interference with the landing doors 3a and 3b. Further, sliding surfaces 36a and 36b are provided on the contact surfaces of the upper frame 13 with the landing doors 3a and 3b, similarly to the first embodiment, and the landing doors 3a and 3b are supported by the support 17. And the upper frame 13 can be operated without any problem even when the door is opened under a light clamping condition. When the landing doors 3a and 3b come into contact with the interference pieces of the opening restriction portions 40a and 40b of the support member 17 so that the doors cannot be opened any more, the door closing restriction portions 39a and 39b are projected to the hoistway 1 side. Move and fix. Thereafter, the wing nut 23 that is the clamping unit 18 is further rotated so that the landing doors 3a and 3b are completely clamped by the support 17 and the upper frame 13 by the bolts 20, thereby opening the landing doors 3a and 3b. Installation of the safety fence is completed with the door direction and closing direction restricted. Thus, when the bolt 20 connecting the upper frame 13 and the support body 17 is tightened, the opening and closing of the landing doors 3a and 3b can be restricted, and the safety fence can be fixed to the landing doors 3a and 3b.

  In the present embodiment, the structure as described above is adopted and the mounting method as described above is performed, so that the support body 17 is placed on the landing without opening a gap where the body enters even when the worker performs work. The door 3a, 3b can be arranged on the surface of the hoistway 1 side, and when the landing doors 3a, 3b are opened widely, an entry blocking member is provided at the opening portion of the door while ensuring that the door is not opened too much. Can be maintained, and a very high level of safety can be ensured.

<Embodiment 3>
Next, a third embodiment of the elevator safety fence according to the present invention will be described. Note that members having the same or similar functions as those in the first and second embodiments are denoted by the same reference numerals and description thereof is omitted. This embodiment demonstrates the example applied to the elevator provided with the single door type landing door 41 arrange | positioned between the hoistway 1 and the landing 2. FIG. FIG. 16 is a front view showing the configuration of the third embodiment of the elevator safety fence according to the present invention, and FIG. 17 is a view seen from the arrow J direction shown in FIG.

  In this embodiment, as shown in FIGS. 16 and 17, the upper frame 13 and the lower frame 11 which are entry preventing members disposed on the landing 2 side with respect to the landing door 41, and both ends of the upper frame 13 and the lower frame 11. Two partitions connected to each other in an X-shape, intersecting frames 37a and 37b that also serve as vertical frames, and the upper frame 13 arranged on the hoistway 1 side from the landing door 41 and the landing 2 of the landing door 41 It is the same as that of 2nd embodiment that the support body 17 which is a press part pressed on the surface of the side, and the pinching part 18 are provided.

  In this embodiment, the closing restriction portion 39 provided on the landing door 41 side from the center of the upper frame 13 has the same configuration as that of the second embodiment, and the closing operation is performed so that the landing door 41 does not close from a predetermined opening dimension. To regulate. On the other hand, at the opposite end of the upper frame 13, when the closing restricting portion 39 receives a force for closing the landing door 41, and the force is transmitted and a force in the closing direction acts on the upper frame 13. When the upper frame 13 receives a force in the direction toward the hoistway 1 side, the upper frame 13 moves in the direction toward the hoistway 1 side. An entrance / exit frame locking portion 42 is provided. The entrance / exit frame locking portion 42 is made of a metal plate having an L-shaped cross section, similar to the closing restriction portion 39, and the entrance / exit at the end on the landing 2 side of the surface that contacts the entrance / exit frame 5 b and receives force. A folded portion 42a is provided to be engaged with the end surface on the landing 2 side of the frame 5b. As a result, the force for closing the landing door 41 is restricted by the closing restriction portion 39 and the entrance / exit frame locking portion 42, and when the upper frame 13 receives a force in the direction toward the hoistway 1, the upper frame 13 The movement in the direction toward the hoistway 1 side can be regulated. Thus, in the present embodiment, the restricting portion is configured by the closing restricting portion 39 and the entrance / exit frame locking portion 42.

  In addition, as shown in FIG. 17, the opening restricting portion 40 provided at the landing door side end portion of the support 17 in this embodiment has the same configuration as that of the second embodiment, and an upper frame as will be described later. 13 and the lateral width W of the lower frame 11 restrict the opening operation of the landing door 41 so that the landing door 41 does not open. On the other hand, at the end opposite to the opening restriction portion 40 of the support body 17, a door-holding pinion portion 43 that restricts the movement of the upper frame 13 in the opening / closing direction of the landing door 41 is provided. The door stop portion 43 is disposed so as to face the door stop portion 43b contacting the door stop surface side of the entrance / exit frame 5b and the door stop portion 43b. It is comprised from the door stop pinching part 43a which can contact. The door-holding pinch portion 43a and the door-holding pinch portion 43b are each formed from a metal plate material having an L-shaped cross section, and an elastic rubber plate or the like is attached to a portion that comes into contact with the door stopper portion of the entrance / exit frame 5b, It is intended to prevent slippage and damage to the door stop. The door-holding pinch portion 43a and the door-holding pinch portion 43b are fixed to the fixing rod 21 constituting the support body 17 by bolts and wing nuts. It is configured to move with respect to each other.

  About the attachment method of the safety fence in this embodiment which has such a structure, a different part from 1st, 2nd embodiment is demonstrated. First, the worker opens the door to about half the width L of the safety fence while maintaining a state where the safety fence exists between the landing door 41 and himself, and the entrance / exit frame locking portion 42 provided at the end of the upper frame 13. Is firmly brought into contact with the entrance / exit frame 5b, the lower frame 11 and the upper frame 13 are set with respect to the entrance door 41 and the entrance / exit frame 5b, and the support door 17 is set up vertically from the opened gap. 41, it is put on the hoistway 1 side, and then the support 17 is in a state parallel to the upper frame 13. At this time, the width of the door stop located on the hoistway 1 side is generally different for each installed property, and it is very difficult to confirm the width of the door stop. Then, the door-holding pinch portion 43a and the door-holding pinch portion 43b are made movable with respect to the fixed rod 21, and the door-holding pinch portion 43a and the door-holding pinch portion 43b are kept wide so that the support 17 is In the process of making the state parallel to the frame 13, the door-holding portion 43 b is disposed on the door-contacting surface side of the door-holding portion, and the door-holding portion 43 a is disposed on the back surface side of the door-holding portion. The wing nut 23, which is the pressing portion 18, is rotated until the landing door 41 is lightly pinched by the frame 13, and the distance between the support frame 17 and the upper frame 13 is reduced by the bolt 20, and in this state, the door-holding portion 43a And the door catching portion 43b Interval is reduced sandwiched doorstop portion is fixed to the fixed rod 21 by tightening the wing nut to secure the left doorstop pinching portion 43a and the doorstop pinching portion 43b of the pinching state. In this state, the landing door 41 is further opened.

  At this time, the closing restricting portion 39 loosens the wing nut and protrudes toward the landing 2 side to avoid interference with the landing door 41. The contact surface of the upper frame 13 with the landing door 41 is provided with a sliding member 36 as in the first and second embodiments. The landing door 41 is connected to the support 17 and the upper frame. 13 can be operated without any problem even when the door is opened under a light clamping condition. When the landing door 41 comes into contact with the interference piece of the opening restricting portion 40 of the support 17 and the door cannot be opened any more, the closing restricting portion 39 is moved to a state protruding to the hoistway 1 side and fixed. Thereafter, the wing nut 23 that is the clamping unit 18 is further rotated so that the landing door 41 is completely clamped by the support 17 and the upper frame 13 by the bolt 20, so that the landing door 41 is opened and closed. Installation of the safety fence is completed with the direction restricted. In this manner, when the bolt 20 connecting the upper frame 13 and the support body 17 is tightened, the opening / closing of the landing door 41 can be restricted and the safety fence can be fixed to the landing door 41.

  In the present embodiment, the above-described structure is adopted and the above-described mounting method is performed. Therefore, even if the landing door is in the form of a one-sided door, the safety of workers can be protected. In addition, when a worker performs work, it can be attached so that a safety fence always exists between the hoistway 1 and himself. Therefore, when the landing door 41 is opened widely, a state where it is not opened too much is ensured. However, it is possible to maintain the state in which the entrance blocking member exists in the opening portion of the door, and it is possible to secure a very high safety.

  In particular, in the case where the door-holding portion 43 of the support 17 is set to the door-stop portion, it can be easily attached even if the width of the door-stop portion cannot be confirmed. Furthermore, the door-holding pinion portion 43 fixes the one end of the support body 17 so as not to move, so that it is locked to the end surface on the landing 2 side of the doorway frame locking portion 42 provided at one end portion of the upper frame 13. Since the upper frame 13 is also prevented from moving in the direction in which the folded portion 42a comes off, the reliability of the safety fence attachment can be improved.

  In the present embodiment, the description has been given by taking as an example the mode in which the door-holding pinch portion 43a and the door-holding pinch portion 43b are movable with respect to the fixed rod 21, but the present invention is not limited to this. The contact clip 43a is fixed, and the same effect can be obtained even when only the door clamp 43b is movable with respect to the fixed rod 21. On the other hand, even if the door-holding pinion 43b is fixed and only the door-holding pinion 43a is movable with respect to the fixed rod 21, the same effect can be obtained. However, if both of them are configured to move, they can be attached to various forms regardless of the positional relationship between the door stop and the landing side decorative surface of the entrance / exit frame 5b and the shape of the entrance / exit frame 5b. In this way, in this embodiment, when the landing door 41 is about to open, the door-holding portions 43 and the opening restriction portions 40 provided at both ends of the support body 17 move in the opening direction of the landing door 41. To regulate. That is, the restricting portion of the present embodiment is composed of the door-holding sandwiching portion 43 and the opening restricting portion 40.

  Furthermore, FIG. 18 is a figure which shows the case where the vertical frame shape of an entrance / exit frame differs in the form shown in FIG. The entrance / exit frame latching portion 42 of the present embodiment is fixed to the upper frame 13 by bolts and wing nuts, and by rotating the wing nut, the rotation direction about the vertical axis indicated by the arrow in FIG. It can be rotated to R. Further, the portion of the contact surface of the entrance / exit frame locking portion 42 that is in contact with the entrance / exit frame 5b is configured to be expanded and contracted in the horizontal direction S and fixed at an arbitrary position. It is possible to variously change the positional relationship with the upper frame 13 of the folded portion 42a that is locked to the end face, and it is possible to deal with various shapes of the entrance / exit frame 5b.

1 hoistway 2 landing 3a, 3b landing door 3A1, 3A2, 3B1, 3B2 protruding piece 3a1, 3a2, 3b1, 3b2 folding end 7 sill 8a, 8b door shoe 10 frame 11 lower frame 11a sill fixing bracket 12a, 12b vertical frame 13 Upper frame 13a Through hole 14 Partition frame 15 Middle 16 Bracing 17 Support body 18 Holding part 20 Bolt 20a Head 20b Shaft part 21 Fixed rod 21A Long hole 21a Through hole 22 Nut 23 Wing nut 25 First plate 25a Folding Bending piece 26 Second plate 26a Bending piece 27 Plate nut 28 Guide bolt 29 Lock nut 30 Butterfly bolt 31 Elastic body 37a, 37b Cross frame 38a, 38b Assembly bolt 39, 39a, 39b Closed restricting portion 40, 40a, 40b Open Restriction part 41 Landing door 42 Entrance / exit frame locking part 42a Ri barbs 43,43a, 43b doorstop nip

Claims (9)

A pair of double-opening type landing doors arranged between the hoistway and the landing or provided in an elevator equipped with a single-opening type landing door that abuts the end of the door against the door stop portion connected to the doorway frame,
An entrance blocking member disposed on the landing side of the landing door, the pair of double-opening landing doors or the entrance / exit frame and the entrance door;
A restricting portion for restricting the opening operation of these landing doors so that the landing doors do not open than the lateral width of the entry preventing member;
An elevator safety fence, comprising: a pressing portion that presses the entry blocking member against a surface on the landing side of the landing door. In the elevator safety fence according to claim 1,
The pressing portion is
A support body disposed on the hoistway side of the landing door, and spanned over the landing door;
The support and the entry blocking member are connected, and a holding portion is provided to hold the landing door by the support and the entry blocking member,
The regulation part is
An elevator safety fence comprising a locking portion provided on the support and configured to lock the landing door. In the elevator safety fence according to claim 2,
The landing door has a protruding piece formed at an end and protruding toward the hoistway side,
The safety fence for an elevator, wherein the locking portion engages with the protruding piece of the landing door. In the elevator safety fence according to any one of claims 1 to 3,
An elevator safety fence comprising a pair of closing restricting portions for restricting the closing operation of the landing door on the entry preventing member. In the elevator safety fence according to any one of claims 1 to 3,
An elevator safety fence comprising a pair of closing restricting portions for restricting the closing operation of the landing door at the pressing portion. In the elevator safety fence according to any one of claims 1 to 5,
The entry preventing member is
A lower frame disposed at the landing,
A pair of landing doors of the double opening type or the entrance frame and an upper frame spanned over the landing door;
An intersecting frame intersecting in an X shape between the lower frame and the upper frame;
An elevator safety fence characterized by comprising a frame having In the elevator safety fence according to any one of claims 1 to 5,
The entry preventing member is
A lower frame disposed at the landing,
A pair of vertical frames erected on both ends of the lower frame,
An upper frame connecting the upper parts of these vertical frames,
A partition frame for partitioning a space formed between these lower frame, a pair of vertical frames, and an upper frame;
An elevator safety fence characterized by comprising a frame having In the elevator safety fence according to claim 6 or 7,
The landing door has a door shoe provided at the lower end,
The hall has a sill engaged with the door shoe and guiding the hall door,
An elevator safety fence characterized in that the frame has a sill engaging bracket that engages with the sill. In the elevator safety fence according to any one of claims 1 to 8,
At least one of the restricting parts includes a door catching part that can be fixed by sandwiching the door catching part, and at least one of the closing restricting parts can be locked to a landing side end surface of the entrance / exit frame and A safety fence for an elevator, comprising an entrance / exit frame latching portion that restricts movement in a direction from the hoistway to the hoistway side.

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