JP2008105806A - Safety fence device for passenger conveyor - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a safety fence device for a passenger conveyor capable of being erected and fixed so as to surround a platform by opening only one part of a manhole and drawing a safety fence body housed in a machine chamber onto the floor of the platform. <P>SOLUTION: This safety fence device for a passenger conveyor comprises a partial cover 11a capable of sealing/opening one part of the manhole 5 formed on the floor 4 of the platform of the passenger conveyor 1, and the safety fence body 30 housed in the machine chamber 20 and capable of being erected so as to surround the platform by drawing it onto the floor 4 through one part of the opened manhole 5. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

  The present invention relates to a man conveyor safety fence device that restricts the entry of a third party into a man conveyor during maintenance of the man conveyor.

  Conventional safety fences for escalators include a fence storage body provided in the machine room of the escalator, and a safety fence body that is formed to be storable in this fence storage body and can be pulled out and fixed upright when used. (For example, refer to Patent Document 1).

Generally, a manhole for entering and exiting the machine room is provided on the floor of the entrance / exit of the escalator. The manhole is usually covered with a lid and completely closed.
During maintenance of the escalator, the manhole cover was removed and placed on the floor of the entrance / exit near the manhole, and the safety fence body was pulled out from the fence storage body and fixed upright so as to surround the entrance / exit. This restricted access to third-party escalators.

JP-A-8-20484

  However, the manhole cover is generally extremely heavy because a large iron plate or the like is used. Therefore, the work of removing and attaching the lid every time the escalator is maintained requires a great deal of labor. Also, for example, when performing maintenance on escalator components other than the machine room, such as steps and handrails, it is necessary to attach a lid that has been removed once in order to prevent the tools used by workers from falling into the machine room. is there. Then, in order to store the safety fence body after the maintenance is completed, it is necessary to attach and remove the lid again. For this reason, since it will be repeated attachment and removal of a lid | cover, much more labor was needed.

  The present invention has been made to solve the above-described problem. Only a part of the manhole is opened, and the safety fence body accommodated in the machine room is drawn out to the floor of the entrance / exit to surround the entrance / exit. The purpose is to obtain a man conveyor safety fence device that can be fixed upright.

  A man conveyor safety fence device according to the present invention includes a partial cover provided so as to be able to close and open a part of a manhole formed on a floor of an entrance of a man conveyor, and a manhole accommodated in the machine room and opened. And a safety fence body that can be erected so as to surround the entrance through a part of the floor.

  According to this invention, since the partial cover is formed in a size that covers a part of the manhole, it is lightweight, and a part of the manhole can be easily opened and closed. Furthermore, since the safety fence body housed in the machine room can be pulled out from the part of the opened manhole to the floor of the entrance / exit, the safety fence body can be omitted while eliminating the labor required to remove and install the heavy manhole cover. Can be installed at the entrance.

The best mode for carrying out the present invention will be described below with reference to the drawings.
Embodiment 1 FIG.
1 is a perspective view showing the vicinity of an entrance / exit of an escalator equipped with a man conveyor safety fence device according to Embodiment 1 of the present invention, FIG. 2 is a cross-sectional view taken along the line II-II in FIG. 1, and FIG. The top view which shows the state by which the safety fence main body of the man conveyor safety fence apparatus which concerns on the form 1 of this invention was folded, FIG. 4 is the state by which the safety fence main body of the man conveyor safety fence apparatus which concerns on Embodiment 1 of this invention was expand | deployed FIG. 5 is an exploded view of part A of FIG. 4, FIG. 6 is an enlarged cross-sectional view of the main part of FIG. 2, and FIG. 7 is an escalator including the man conveyor safety fence device according to Embodiment 1 of the present invention. FIG. 8 is a cross-sectional view taken along the line VIII-VIII of FIG. 7, and FIG. 9 is a safety fence body of the man conveyor safety fence device according to Embodiment 1 of the present invention. FIG. 10 is a perspective view for explaining the standing procedure of FIG. Sectional drawing which shows the arrangement | positioning state of the base pillar after a standing completion of the safety fence main body of the man conveyor safety fence apparatus which concerns on Embodiment 1 of this invention, and a closing board, FIG. 11 concerns on Embodiment 1 of this invention It is a perspective view which shows the entrance / exit periphery of the escalator after the safety fence main body installation of a man conveyor safety fence apparatus.

In FIG. 1, an escalator 1 as a man conveyor includes a step 2 that circulates and a handrail 3 that circulates in synchronization with the step 2, and is provided on a floor 4 of an entrance on the upper floor side, which will be described later. A manhole 5 which is an opening of the machine room is provided. The manhole 5 has an opening formed in a rectangular shape, and the length direction of the short side thereof coincides with the width direction of the step 2. The opening of the manhole 5 is parallel to the horizontal plane.
Henceforth, let the length direction of the short side (width direction of the step 2) of the manhole 5 be a width direction, and let the length direction of a long side be a vertical direction.

The manhole 5 is completely closed by the three lids 7 and the partial cover 11a.
Each of the lids 7 is formed of a large-sized rectangular iron plate or the like, and is extremely heavy. The three lids 7 are arranged adjacent to each other in the vertical direction from the step 2 side of the manhole 5 so as to cover the manhole 5 with both short sides thereof aligned with both long sides of the manhole 5. The manhole 5 after the three lids 7 are arranged has a predetermined length in the vertical direction between the opposite end portion of the manhole 5 and the lid 7 arranged on the counterstep side. A fence outlet 6 having a rectangular opening is formed.

  And the partial cover 11a of the same material as the lid | cover 7 is arrange | positioned so that the fence outlet 6 may be obstruct | occluded, and, thereby, the opening of the manhole 5 is obstruct | occluded completely. At this time, the vertical length of the fence outlet 6, that is, the vertical length of the partial cover 11 a is sufficiently shorter than the length of the short side of the lid 7. For this reason, the weight of the partial cover 11 a is sufficiently light compared to the lid 7.

  In FIG. 2, a machine room 20 on the upper floor side is provided in a lower part of a manhole 5 formed on the floor 4, and the machine room 20 can be accessed by removing the lid 7 of the manhole 5. Although not described in detail, an escalator control panel that controls the operation of the escalator 1 is installed in the machine room 20.

  The man conveyor safety fence device includes a set of first guide members 14, the partial cover 11 a described above, a closing plate 13, a set of second guide members 15, a safety fence main body 30, and a fence storage body 24. Has been.

Although details will be described later, the partial cover 11a is attached to the wall 21 of the machine room 20 via a hinge 22a as a rotating member, the first guide member 14 is disposed on the wall 21 of the machine room 20, Two guide members 15 and a closing plate 13 are disposed on the surface of the partial cover 11a on the machine room 20 side.
Here, the surface on the entrance / exit side of the partial cover 11a closing the fence outlet 6 is a front surface, and the surface on the machine room 20 side is a back surface.

The fence storage body 24 is disposed on the wall 21 of the machine room 20 located near the lower portion of the partial cover 11a.
The fence storage body 24 is formed of an iron plate or the like, and is formed by bending the bottom wall portion 25 so as to rise in a substantially vertical direction from the bottom wall portion 25 that protrudes horizontally from the wall 21 and the opposite wall-side end portion of the bottom wall portion. It has a standing wall portion 26 and is open on the upper side and both sides.
The foldable safety fence body 30 is accommodated in a folded state in the fence storage body 24 of the machine room 20 below the partial cover 11a. At this time, one end (upper end) of the safety fence main body 30 is stored in the fence storage body 24 adjacent to the back surface of the partial cover 11a.

3-5, the safety fence main body 30 has the fixed fence 31 and the rotation fences 35a and 35b of the same structure.
The fixed fence 31 includes a pair of base pillars 32 and a curtain 34 a as a shielding member stretched between the base pillars 32.
The base pillar 32 is formed as a square pillar having a substantially square cross section, and the other end (lower end) is processed into a wedge shape. Further, the protruding portion 33 a is formed so as to protrude outward from the outer peripheral surface of the base pillar 32.
The protruding portion 33 a is formed at a portion of the intermediate portion in the length direction at a predetermined distance from the other end of the base pillar 32.

The curtain 34a is formed in a rectangular shape and is fixed to each of the base pillars 32 arranged in parallel on both short sides thereof, and covers between the lengthwise ends (upper ends) of the base pillars 32 and the intermediate portion. ing.
On the surface of the curtain 34a, a display for informing a third party that the escalator 1 is under maintenance is written, such as “I am very inconvenienced during construction”.

Each of the rotation fences 35a and 35b includes four link rods 38a to 38d, a first support shaft 36a to a third support shaft 36c, and a shielding member that covers between the first support shaft 36a and the second support shaft 36b. And a curtain 34c as a shielding member for covering the space between the second support shaft 36b and the third support shaft 36c.
Each of the link bars 38a to 38d is formed with a ring 39 at both ends.
Further, as shown in FIG. 5, the second support shaft 36 b includes a shaft bar 40 b, an intermediate collar 41 a, a lower collar 42 a, and a screw 43.

  The intermediate collar 41a covers the portion between the vicinity of one end of the shaft rod 40b and the intermediate portion at a predetermined distance in the axial direction from the one end, and the lower collar 42a covers the intermediate portion of the shaft rod 40b and the like. The part between the ends is covered in an externally fitted state. The lower collar 42a is fixed to the shaft bar 40b.

  In the second support shaft 36b configured as described above, the ring 39 on one end side of the link rods 38a, 38c is mounted loosely on the portion of the shaft rod 40b exposed from one end side of the intermediate collar 41a. Has been. Further, the ring 39 on one end side of the link rods 38b, 38d is mounted loosely on a portion of the shaft rod 40b between the other end of the intermediate collar 41a and one end of the lower collar 42a. As a result, the ring 39 of the link rods 38a to 38d through which the shaft rod 40b is inserted is located above the intermediate collar 41a and the lower collar 42a in the vicinity of one end side of the shaft rod 40b and at a predetermined distance from one end of the shaft rod 40b. It is supported on each end face.

  Further, a screw groove (not shown) is formed at one end of the shaft rod 40b at the center of the shaft, and a screw 43 is screwed to one end of the shaft rod 40b. As a result, the link rods 38a, 38c are restricted from moving in the axial direction of the shaft rod 40b by the top portion 43a of the screw 43, and do not come out of the shaft rod 40b.

Although not shown in detail, the first support shaft 36a has a shaft bar 40a, and the intermediate collar, lower collar and screws similar to the intermediate collar 41a, lower collar 42a and screw 43 are provided in the second support. It is arranged in the same manner as the shaft 36b.
The third support shaft 36c has a shaft bar 40c, and the intermediate collar 41a, the lower collar 42a, and the screw 43 are arranged in the same manner as the second support shaft 36b. Has been.
The shaft rod 40a is shorter than the shaft rods 40b and 40c. Further, the length of the lower collar through which the shaft bar 40a is inserted is extremely shorter than that of the lower collar 42a.

Then, each of the rings 39 on the other end side of the link rods 38a, 38c is respectively attached to the portions of the shaft rods 40a, 40c exposed from one end of the intermediate collar of the first support shaft 36a and the third support shaft 36c. It is mounted in a loose fit state.
Further, each of the rings 39 on the other end side of the link rods 38b and 38d is connected to the shaft rod 40a between the other end of the intermediate collar of the first support shaft 36a and the third support shaft 36c and one end of the lower collar. , 40c are mounted in a loosely fitted state.

  That is, the first frame 37a is formed of link rods 38a and 38b arranged in parallel and shaft rods 40a and 40b inserted into the ring 39 at both ends of the link rods 38a and 38b in a loosely fitted state. .

  The second frame 37b is formed by link rods 38c and 38d arranged in parallel, and shaft rods 40b and 40c inserted into the ring 39 at both ends of the link rods 38c and 38d in a loosely fitted state. .

  That is, the shaft bar 40b is inserted into the ring 39 at one end of each of the link bars 38a to 38d, and the distance between the link bars 38a and 38b is the same as the distance between the link bars 38c and 38d. Therefore, the first frame 37a and the second frame 37b are formed so as to be continuous around the shaft rod 40b.

Then, the rotation fences 35 a and 35 b are fixed to each of the base columns 32 so that one end of the first support shaft 36 a is aligned with one end of each of the base columns 32.
At this time, the first support shaft 36 a is attached so that the axial direction of the shaft rod 40 a coincides with the length direction of the base column 32.
Thereby, the rotation fences 35a and 35b are rotatably disposed around the base pillar 32 as an axis.
At this time, the first frame 37a can be rotated around the axis of the shaft bar 40a. Further, the second frame 37b is rotatable around the axis of the shaft bar 40b.

  Therefore, the safety fence main body 30 rotates the second frames 37b of the rotation fences 35a and 35b to align with the first frame 37a, and further, the first frame 37a and the second frame 37b in the same direction. Can be folded compactly or can be unfolded by the reverse operation.

In FIG. 6, the first guide member 14 is formed in a U shape in cross section, and the attachment portion 14 a is bent so that both ends of the U shape in the cross section protrude perpendicularly outward from both side pieces of the U shape. Is formed. And the 1st guide member 14 is arrange | positioned under the both sides of the width direction of the partial cover 11a which plugs up the fence outlet 6.
Each of the first guide members 14 has a U-shaped opening facing a portion on the side opposite to the step of the wall 21 of the machine room 20, and the mounting portion 14 a is aligned with the wall 21 at a predetermined interval in the horizontal direction. Are arranged. And the 1st guide member 14 is being fixed to the wall 21 with the volt | bolt 16 which penetrates the attaching part 14a. As a result, the first guide hole is formed by the first guide member 14 and the wall 21, and the first guide member 14 is arranged with the direction of the first guide hole aligned with the vertical direction (vertical direction). Has been.

  And the above-mentioned partial cover 11a is rotatably attached via the hinge 22a fixed to the site | part of the upper end of the wall 21 by the side of a counterstep. At this time, the hinge 22a is attached so that the direction of the rotation axis thereof coincides with the width direction. Further, at the boundary between the partial cover 11a and the lid 7 adjacent to the partial cover 11a, the convex portion 12a protruding from the upper half in the thickness direction of the partial cover 11a toward the lid 7 is formed from the lower half of the lid 7 in the thickness direction. It arrange | positions at the upper part of the convex part 8 which protrudes in the partial cover 11b side. Thus, when the partial cover 11 a closes the fence pulling outlet 6, the convex portion 12 a of the partial cover 11 a is supported by the convex portion 8 of the lid 7, and the partial cover 11 a forms unevenness with the lid 7. Arranged without.

  Further, two handles 17 are arranged on the partial cover 11a so as to be able to protrude and retract from the surface thereof. At this time, each of the handles 17 is disposed on the partial cover 11a with a predetermined interval in the width direction. Further, since the handle 17 is disposed on the partial cover 11a so as to be able to protrude and retract from the surface thereof, a user heading to the step 2 does not trip the escalator 1 during normal operation.

  The second guide member 15 is formed in a U-shaped cross-section, and the attachment portion 15a is formed by bending both ends of the U-shaped cross-section so as to protrude vertically outward from both sides of the U-shaped. Yes. And a set of 2nd guide members 15 is attached with the volt | bolt 16 on the both sides of the width direction of the back surface of the partial cover 11a. As a result, the second guide hole is formed by the second guide member 15 and the back surface of the partial cover 11a, and the second guide member 15 is attached with the direction of the second guide hole aligned with the vertical direction. ing.

Further, between the second guide members 15, a closing plate 13 is rotatably attached via a pair of hinges 22b so as to be aligned with the back surface of the partial cover 11a.
The pair of hinges 22b are attached to the opposite step side of the partial cover 11a with a predetermined interval in the width direction, and the directions of the rotation axes thereof coincide with the width direction.
Moreover, the screw hole 28 is formed in the step side of the partial cover 11a, and the intermediate | middle site | part of the width direction.
And the closing board 13 is being fixed to the back surface of the partial cover 11a by screwing the thumbscrew 23 which penetrates the closing board 13 in the screw hole 28. FIG.

7 and 8, the partial cover 11a is rotated to the counter machine room 20 side by pulling the handle 17, whereby the fence outlet 6 is opened.
At this time, when the centers of the first guide hole of the first guide member 14 and the second guide hole of the second guide member 15 rotate the partial cover 11a by 90 degrees with respect to the horizontal direction, The arrangement positions of the first guide member 14 and the second guide member 15 are adjusted so as to match.
Further, the inner diameter shapes of the first guide hole and the second guide hole correspond to the outer shape of the base pillar 32.

Next, a procedure for standing and storing the safety fence main body 30 performed during maintenance of the escalator 1 will be described with reference to FIGS. 9 to 11.
First, the handle 17 is pulled, the partial cover 11a is rotated to the non-machine room side, and the fence outlet 6 is opened. Then, the safety fence main body 30 is pulled out from the fence pull-out opening 6 to the floor 4 of the entrance / exit, and as shown in FIG. 9, the base pillar 32 is inserted into the second guide member 15 from one end side, and further the first guide Insert into member 14. At this time, the base column 32 is inserted until the protruding portion 33 a of the base column 32 comes into contact with the upper end surface of the second guide member 15. Thereby, the base pillar 32 is not inserted into the first guide member 14 any more, and the base pillar 32 is stably supported by the first guide member 14.

When the protruding portion 33a of the base pillar 32 is brought into contact with the upper end of the second guide member 15, the lower ends of the second support shaft 36b and the third support shaft 36c of the rotating fences 35a and 35b are 4, the first frame 37a and the second frame 37b are supported.
At this time, the fixed fence 31 of the safety fence body 30 is erected above the short side of the manhole 5 on the side opposite to the step. Then, the first frame 37 a and the second frame 37 b of the rotation fences 35 a and 35 b are rotated and arranged along both long sides of the manhole 5.
Thereby, the safety fence main body 30 is erected so as to surround the entrance / exit near the manhole 5, as shown in FIG.

Next, the thumbscrew 23 for fixing the closing plate 13 to the partial cover 11a is removed, the closing plate 13 is rotated around the rotation axis of the hinge 22b, and the fence pulling outlet 6 is closed by the closing plate 13 as shown in FIG. Cover.
After completion of the maintenance, the closing plate 13 is aligned with one surface of the partial cover 11a and fixed with the thumbscrew 23 again, and the first frame 27a and the second frame 27b of the rotating fences 35a and 35b of the safety fence main body 30 are further fixed. Is folded into the state shown in FIG. And the base pillar 32 is pulled out from the 1st guide member 14 and the 2nd guide member 15, and the safety fence main body 30 is accommodated in the fence storage body 24 from the fence outlet 6.
Then, the partial cover 11a is turned to the machine room 20 side to close the fence outlet 6 to return to the original state where the manhole 5 is completely closed.

  In the first embodiment, the partial cover 11a is disposed on the wall 21 of the machine room 20 so that a part of the manhole 5 (the fence outlet 6) can be opened and closed. The folding safety fence main body 30 is accommodated in the fence storage body 24 of the machine room 20 below the partial cover 11a, and can be easily pulled out from the fence outlet 6 to the floor 4 of the entrance / exit. .

  Further, the centers of the first guide hole of the first guide member 14 and the second guide hole of the second guide member 15 coincide when the partial cover 11a is rotated 90 degrees with respect to the horizontal direction. As described above, the first guide member 14 and the second guide member 15 are disposed on the back surface of the partial cover 11a and the wall 21 of the machine room 20, respectively. And the safety fence main body 30 is supported by inserting the base pillar 32 which has the protrusion part 33a in the predetermined site | part of an outer peripheral surface in the 1st guide member 14 via the 2nd guide member 15. As shown in FIG.

  Further, since the closing plate 13 is pivotally attached to the back surface of the partial cover 11a, it is possible to close the most opening of the fence outlet 6 after the safety fence main body 30 is erected. Yes.

Therefore, according to this Embodiment 1, since the partial cover 11a is formed in the size which covers a part of manhole 5, it is lightweight and can easily open a part of the manhole 5 (the fence outlet 6) and Can be plugged. Furthermore, since the safety fence main body 30 accommodated in the machine room 20 can be pulled out from the fence pull-out opening 6 to the floor 4 of the entrance / exit, it is safe while omitting labor required for removing and attaching the lid 7 of the extremely heavy manhole 5. The fence body 30 can be installed at the entrance.

  Moreover, since the partial cover 11a is rotatably attached via the hinge 22a, the fence outlet 6 can be opened and closed more easily, and the time required for standing and storing the safety fence body 30 Can be reduced.

Further, since the closing plate 13 is rotatably attached to the back surface of the partial cover 11a via a hinge 22b, most of the opening of the fence outlet 6 is easily closed after the safety fence body 30 is erected. Furthermore, it is possible to prevent a tool used by a worker who performs maintenance of the escalator 1 from falling into the machine room 20.
Further, since the closing plate 13 is fixed to the partial cover 11a by the thumbscrew 23, when closing the fence pulling outlet 6 with the closing plate 13, the closing plate 13 is removed from the partial cover 11a without using a tool, The fence outlet 6 can be closed.

  Moreover, since the partial cover 11a can be rotated by pulling the handle 17, the fence outlet 6 can be immediately opened without using a tool.

Further, since the safety fence body 30 can be folded and unfolded, it can be accommodated in the machine room 20 in a space-saving manner, and the standing work can be easily performed.
Further, since the first guide member 14 is provided, there is no need to newly provide a member for fixing and supporting the safety fence body 30 when the safety fence body 30 is erected, and the safety fence body 30 can be replaced with the first guide member. 14 can be supported. Accordingly, the safety fence body 30 can be more easily erected at the entrance / exit. Further, by inserting the base pillar 32 also into the second guide member 15, it becomes easy to insert the base pillar 32 into the first guide member 14.

  Further, since the protrusion 33a is formed on the base pillar 32, the movement in the length direction of the base pillar 32 is restricted when the protrusion 33a comes into contact with the upper end of the second guide member 15. 30 can be stably supported.

In the first embodiment, the hole direction of the first guide hole is aligned with the vertical direction, and the hole direction of the second guide hole is aligned with the vertical direction of the partial cover 11 a that blocks the fence outlet 6. Although described as being disposed, the hole directions of the first guide hole and the second guide hole are not limited to those aligned with the vertical direction and the vertical direction. If the hole center of the first guide hole coincides with the hole center of the second guide hole when the partial cover 11a is rotated by a predetermined angle, the first guide member 14 and the second guide member 14 The directions of the first guide hole and the second guide hole by the guide member 15 may be shifted from the vertical direction and the vertical direction, respectively.
Although the second guide member 15 is described as being provided, the second guide member 15 is not provided, and the base 32 of the safety fence main body 30 is provided only in the first guide hole of the first guide member 14. May be inserted.

Embodiment 2. FIG.
12 is a perspective view showing a state where an opening of a manhole of an escalator provided with a man conveyor safety fence device according to Embodiment 2 of the present invention is closed, and FIG. 13 is a man conveyor safety according to Embodiment 2 of the present invention. FIG. 14 is a cross-sectional view taken along arrow XIV-XIV in FIG. 12, and FIG. 15 is a diagram showing a safety fence body of a man conveyor safety fence device according to Embodiment 2 of the present invention. It is a perspective view which shows the surroundings of the entrance / exit of the escalator.
In addition, the same code | symbol is attached | subjected to the part equivalent to the said Embodiment 1, or an equivalent part, and the description is abbreviate | omitted.

12 to 14, the man conveyor safety fence device includes a partial cover 11 b and an insertion port lid 46.
The partial cover 11 b has columnar insertion holes 45 having an inner diameter shape corresponding to the outer peripheral shape of the base column 32 on both sides in the width direction. The column insertion opening 45 has a partial cover 11b such that when the partial cover 11b closes a part of the manhole 5, the hole center thereof coincides with the hole center of the first guide hole of the first guide member 14. Is formed.
Further, as shown in FIG. 13, the insertion port lid 46 has a rectangular cross section and is formed thick. A hinge 22c is attached to one short side of the insertion port lid 46 having a rectangular cross section. Further, a notch 47 is formed on the other short side of the rectangular section of the insertion port lid 46.

The notch 47 has a recess 48 having a predetermined depth on the other short side. Furthermore, the hanging portion 49 is formed so as to protrude from one side of the recess 48 from the one side to the other side so as to cover a part on the entrance / exit side of the recess 48.
Then, for example, by inserting a finger from the recess 48 and hooking and pulling the hanging portion 49, the insertion port lid 46 can be easily rotated to open the column insertion port 45.

The insertion port lid 46 is attached to the wall surface of the column insertion port 45 on the lid 7 side via a hinge 22c. At this time, the insertion port lid 46 is disposed such that the notch 47 is exposed to the entrance / exit side. The column insertion port 45 can be opened and closed by rotating the insertion port lid 46.
Further, the convex portion 12b protruding from the partial cover 11b to the column insertion port 45 supports the lower portion on the distal end side of the insertion port lid 46 on the side opposite to the hinge 22c when the insertion port lid 46 closes the column insertion port 45. It is formed as follows.
Further, the arrangement of the closing plate 13 is omitted.
Other configurations are the same as those in the first embodiment.

Next, procedures for standing and storing the safety fence main body 30 performed during maintenance of the escalator 1 will be described.
First, the handle 17 is pulled, the partial cover 11b is rotated, and the fence outlet 6 is opened. And after pulling out the safety fence main body 30 from the fence exit 6 to the floor 4 of the entrance / exit, the fence exit 6 is closed again with the partial cover 11b.

  Next, the insertion port lid 46 is rotated to open the column insertion port 45. Then, the base pillar 32 of the safety fence main body 30 is inserted into the first guide hole of the first guide member 14 facing the pillar insertion opening 45 and the pillar insertion opening 45 from one end side thereof. The base pillar 32 is stably supported by the first guide member 14 by inserting until the protruding portion 33b of the base pillar 32 comes into contact with the surface of the partial cover 11b.

At this time, as shown in FIG. 15, the fixed fence 31 of the safety fence body 30 is erected above the short side of the manhole 5 on the side opposite to the step.
From this state, the rotating fences 35a and 35b are respectively rotated so as to surround both long sides of the manhole 5. Thereby, the safety fence main body 30 is erected at the entrance / exit so as to surround the manhole 5.

After the maintenance storage, each of the rotating fences 35a and 35b is rotated and folded. Then, the base column 32 is pulled out from the first guide member 14 and the column insertion port 45 to the floor 4 of the entrance / exit. And the partial cover 11b is rotated, the fence outlet 6 is opened, and the safety fence main body 30 is accommodated in a fence storage body.
Furthermore, the partial cover 11b is rotated again toward the machine room 20 to close the fence outlet 6 with the partial cover 11b, and the insertion port lid 46 is rotated toward the machine chamber 20 to insert a column with the insertion port lid 46. By closing the mouth 45, the manhole 5 returns to the original state where it is completely closed.

  In the second embodiment, the partial cover 11b is arranged on the wall 21 of the machine room 20 so that the fence outlet 6 can be opened and closed. Furthermore, the column insertion port 45 is provided in the partial cover 11b that closes the fence pulling outlet 6 so that the first guide hole of the first guide member 14 and the hole center coincide with each other. Further, the insertion port lid 46 is provided on the wall surface of the column insertion port 45 so that the column insertion port 45 can be opened and closed and is disposed in the column insertion port 45. Then, the fence outlet 6 is opened, and after the folding safety fence main body 30 is drawn out to the floor 4 of the entrance / exit, the fence outlet 6 is closed again by the partial cover 11b. Furthermore, the column insertion port 45 is opened, the base column 32 having the protruding portion 33b formed at a predetermined portion of the outer peripheral surface is connected to the first guide member 14, and the protruding portion 33b is connected to the partial cover 11b via the column insertion port 45. The safety fence body 30 is supported by the first guide member until it comes into contact with the surface. Furthermore, the safety fence main body 30 is developed from this state so as to surround the entrance / exit of the escalator 1.

  Therefore, according to the second embodiment, similarly to the first embodiment, when the safety fence main body 30 is erected and stored, labor due to the removal and attachment of the lid 7 of the extremely heavy manhole 5 can be reduced. Moreover, since the base pillar 32 restrict | limits the movement of the length direction of the base pillar 32 when the protrusion part 33b contact | abuts to the upper end of the 2nd guide member 15, it supports the safety fence main body 30 stably. Can do. That is, the safety fence body 30 can be easily erected. In addition, in the standing state of the safety fence body 30, the fence outlet 6 is closed by the partial cover 11 b, so that tools used by workers who perform maintenance of the escalator 1 may fall into the machine room 20. It can be completely prevented.

  Further, the column insertion opening 45 closed by the insertion opening cover 46 can be easily opened by turning the insertion opening cover 46 by putting a finger on the hooking portion 49 of the insertion opening cover 46. By providing the hanging portion 49, the column insertion opening 45 can be opened more easily, and the time required for standing the safety fence body 30 can be reduced.

In each embodiment, the safety fence body 30 is described as being housed in the upper floor side machine room 20, but the safety fence body 30 is limited to being housed in the upper floor side machine room 20. The safety fence main body 30 can be similarly stored in the machine room on the lower floor side.
Further, the partial covers 11a and 11b have been described as being arranged so as to cover the opposite steps of the manhole 5. However, if the partial covers 11a and 11b are arranged across the width direction of the manhole 5, the arrangement of the manhole 5 in the vertical direction is performed. The installation position is not limited. In this case, what is necessary is just to attach the 1st guide member 14, the 2nd guide member 15, and the fence storage body 24 to the wall of the both sides of the width direction of the machine room 20 in the lower part of the arrangement | positioning location of the partial covers 11a and 11b.

Further, although the curtains 34a to 34c are described as examples of the shielding member, the shielding member is not limited to the curtains 34a to 34c, and may be a net or the like.
Further, although the escalator 1 is described as an example of the man conveyor, the man conveyor is not limited to the escalator 1 and can be applied to a moving sidewalk.

It is a perspective view which shows the surroundings of the entrance / exit of an escalator provided with the man conveyor safety fence apparatus which concerns on Embodiment 1 of this invention. It is II-II arrow sectional drawing of FIG. It is a top view which shows the state by which the safety fence main body of the man conveyor safety fence apparatus which concerns on Embodiment 1 of this invention was folded. It is a perspective view which shows the state by which the safety fence main body of the man conveyor safety fence apparatus which concerns on Embodiment 1 of this invention was expand | deployed. It is the A section exploded view of FIG. It is a principal part expanded sectional view of FIG. In an escalator provided with the man conveyor safe fence apparatus which concerns on Embodiment 1 of this invention, it is a principal part perspective view which shows the state by which the fence outlet was opened. It is VIII-VIII arrow sectional drawing of FIG. It is a perspective view for demonstrating the standing procedure of the safety fence main body of the man conveyor safety fence apparatus which concerns on Embodiment 1 of this invention. It is sectional drawing which shows the arrangement | positioning state of the base pillar and the closing board after completion of standing of the safety fence main body of the man conveyor safety fence apparatus which concerns on Embodiment 1 of this invention. It is a perspective view which shows the entrance / exit periphery of the escalator after the safety fence main body installation of the man conveyor safety fence apparatus which concerns on Embodiment 1 of this invention. It is a perspective view which shows the state by which the opening of the manhole of the escalator provided with the man conveyor safety fence apparatus which concerns on Embodiment 2 of this invention was plugged. It is a perspective view which shows the structure of the insertion port cover of the man conveyor safety fence apparatus which concerns on Embodiment 2 of this invention. It is XIV-XIV arrow sectional drawing of FIG. It is a perspective view which shows the entrance / exit periphery of the escalator in which the safety fence main body of the man conveyor safety fence apparatus which concerns on Embodiment 2 of this invention was installed.

Explanation of symbols

  DESCRIPTION OF SYMBOLS 1 Escalator (man conveyor), 4 floors, 5 manhole, 11a, 11b Partial cover, 13 Closing board, 14 1st guide member, 15 2nd guide member, 17 Handle, 20 Machine room, 21 Wall, 23 Thumb screw , 30 Safety fence body, 31 Fixed fence, 32 Base pillar, 33a, 33b Protruding part, 34a Curtain (shielding member), 35a, 35b Rotating fence, 45 pillar insertion port, 46 Insertion port lid, 47 Notch, 49 Hanging part .

Claims (11)

A partial cover provided so that a part of the manhole formed on the floor of the entrance and exit of the man conveyor can be closed and opened;
A safety fence body that is housed in a machine room below the partial cover and can be erected so as to be drawn out from a part of the opened manhole to the floor and surround the entrance / exit,
A man conveyor conveyor fence device characterized by comprising:   2. The man conveyor safety fence device according to claim 1, wherein the partial cover is attached to a wall of the machine room so as to be rotatable around a horizontal axis.   The closing plate is attached to the back surface of the partial cover so as to be rotatable about a horizontal axis so as to be able to close the opening of the manhole which is opened by rotating the partial cover. The man conveyor safety fence device according to 2.   4. The man conveyor safety fence device according to claim 3, wherein the closing plate is fixed to the partial cover with a thumbscrew.   5. The man conveyor safety fence device according to any one of claims 1 to 4, wherein a handle is disposed on the partial cover so as to be able to protrude and retract from the surface thereof. The safety fence body includes a pair of base pillars and a fixed fence including a shielding member that covers between the pair of base pillars,
A rotating fence disposed on the pair of base pillars so as to be rotatable about the base pillars;
The man conveyor safety fence device according to any one of claims 1 to 5, wherein the safety conveyor device is configured to be foldable and unfoldable.   A set of first guide members are extended in the vertical direction at a predetermined interval in the horizontal direction on the wall of the machine room below the partial cover, and the first guide member is an outer shape of the base pillar. 7. The man conveyor safety fence device according to claim 6, wherein the first guide hole has an inner diameter corresponding to the shape and through which the base pillar is inserted.   A pair of second guide members each have a second guide hole through which the base pillar is inserted, and the partial cover is rotated by a predetermined angle from a state where a part of the manhole is closed. 8. The safety of the man conveyor according to claim 7, wherein the first guide hole and the second guide hole are disposed on the back surface of the partial cover so that the center of each of the first guide hole and the second guide hole coincides with each other. Fence device. An inner diameter shape corresponding to the outer shape of the base pillar, and a column insertion opening through which the base pillar is inserted, when the partial cover closes a part of the opening of the manhole, Formed in the partial cover so that the hole center and the hole center of the first guide hole coincide,
8. The man conveyor safety fence device according to claim 7, wherein an insertion port lid is disposed in the column insertion port so that the column insertion port can be closed and opened.   A protruding portion is formed at a predetermined portion of the base pillar so as to protrude from an outer peripheral surface thereof, and the protruding portion is formed such that the base pillar has the first guide member, the second guide member, and the column insertion opening. When the protrusion is inserted into any one of the predetermined distance, the protrusion comes into contact with the upper end surface of one of the first guide member and the second guide member or the surface of the partial cover, and the base pillar The man conveyor safety fence device according to any one of claims 7 to 9, wherein is supported stably.   10. The man conveyor safety fence device according to claim 9, wherein a notch having a hook portion for pulling the insertion lid toward the entrance / exit is formed in the insertion lid.

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