JP5962474B2 - Elevator safety fence - Google Patents

Description

  The present invention relates to a safety fence provided on an elevator car.

  Patent Document 1 discloses a conventional technique of a safety fence provided on an elevator car. The safety fence described in Patent Document 1 includes fences on the right side and the left side when viewed from the elevator landing side. In addition, a fence made of pipe material is provided on the back side. When both the right side fence and the left side fence are raised, the pipe material on the back side is necessarily arranged at a certain height.

JP 2008-174337 A

  In the safety fence described in Patent Document 1, the rear fence is made of a single pipe material. There was a problem that a large space was formed between the upper surface of the cab and the rear fence (pipe material).

  The present invention has been made to solve the above-described problems. An object of the present invention is to provide an elevator safety fence that can be easily assembled and can surround three sides of a car without forming a large gap.

Safety fence for an elevator according to the present invention is a safety fence provided foldably above the elevator car, and car frame supporting the cab, so as to be tiltable on the central portion side of the cab second fence and the first fence element provided on the car frame, provided on the car frame so as to be inclined to the central portion side of the cab, is arranged to face the first fence member in the assembled state And a third fence body provided between the first fence body and the second fence body, and the third fence body is rotatably provided on the first fence body via the first connecting portion. The first fence part, the second fence part rotatably provided on the second fence body via the second connection part, the first fence part via the third connection part, and the fourth connection part A third fence portion rotatably provided on the second fence portion, and the first connection portion is arranged such that the rotation axis has an angle of 45 degrees with the rotation axis of the third connection portion. The second connecting part is disposed such that the rotation axis has an angle of 45 degrees with the rotation axis of the fourth connection part, and the third connection part has a rotation axis of 90 degrees with the rotation axis of the fourth connection part. It arrange | positions so that it may have an angle, and a 3rd fence body does not contact a cage frame in an assembly state, but is supported by a cage frame via a 1st fence body and a 2nd fence body .

  The elevator safety fence according to the present invention is easy to assemble and can surround three sides of the car without forming a large gap.

It is a perspective view which shows the principal part of the elevator car apparatus provided with the safety fence in Embodiment 1 of this invention. It is the figure which looked at the safety fence of the assembled state from the back side of the hoistway. It is the figure which looked at the safety fence of the folded state from upper direction. It is the figure which looked at the safety fence of the folded state from the landing side. It is a perspective view which shows the principal part of the elevator cab apparatus provided with the safety fence in Embodiment 2 of this invention. It is the figure which looked at the safety fence of the assembled state from the back side of the hoistway.

  The present invention will be described in detail with reference to the accompanying drawings. In each figure, the same or corresponding parts are denoted by the same reference numerals. The overlapping description will be simplified or omitted as appropriate.

Embodiment 1 FIG.
FIG. 1 is a perspective view showing a main part of an elevator car apparatus.
The car device includes a car room 1, a car door 2, a door driving device 3, a car frame 4, and a safety fence 5.

  The cab 1 forms a space for passengers to ride. The car door 2 opens and closes the entrance / exit of the car room 1. The entrance / exit of the cab 1 is arranged to face the entrance / exit (not shown) of the elevator hall. The door driving device 3 drives the car door 2 to open and close the entrance / exit of the car room 1. The door driving device 3 is disposed above the entrance / exit of the cab 1.

  The car room 1 is supported by a car frame 4. The car frame 4 includes a lower frame (not shown), a pair of vertical pillars 6, and an upper frame 7 having a square ring shape. The vertical columns 6 are arranged on both sides of the cab 1. The lower frame is provided between the lower ends of the vertical columns 6 and supports the cab 1 from below. The upper frame 7 is provided between the upper ends of the vertical columns 6 and is disposed horizontally above the cab 1. The upper frame 7 is disposed along the edge of the upper surface of the cab 1.

  The safety fence 5 is supported by the upper frame 7 of the car frame 4. The safety fence 5 is provided above the cab 1 so as to be foldable. When it is not necessary to use the safety fence 5, the safety fence 5 is held in a folded state above the cab 1. The safety fence 5 is assembled at the time of use, and stands up above the cab 1. In the assembled state, the safety fence 5 is arranged so as to surround three sides above the cab 1 (right side, left side, and back side as viewed from the landing side).

  1 and 2 show a state where the safety fence 5 is assembled. FIG. 2 is a view of the safety fence 5 as seen from the back side of the hoistway 8 (direction A shown in FIG. 1). 3 and 4 show a state in which the safety fence 5 is folded. FIG. 3 is a view of the safety fence 5 as viewed from above. FIG. 4 is a view of the safety fence 5 as seen from the landing side.

The safety fence 5 includes a fence body 9 arranged on the right side when viewed from the landing side, a fence body 10 arranged on the left side, and a fence body 11 arranged on the back side.
The fence body 9 is provided on the upper frame 7 via the support portion 12. The fence body 9 is arranged along the right edge of the upper surface of the car room 1 when viewed from the landing side. The support part 12 fixes the fence body 9 to the upper frame 7 so that the fence body 9 can be tilted toward the center of the cab 1. Moreover, the support part 12 supports the fence body 9 so that it may not tilt outside the cab 1 from the state where the fence body 9 stands up.

  The fence body 9 is formed, for example, by cutting and welding an iron square pipe or a round pipe. The fence body 9 includes two pillars 13, a handrail portion 14, and an intermediate rail 15. The pillars 13 are arranged at two corners on the right side of the cab 1 as viewed from the landing side. A lower end portion of each column 13 is provided on the upper frame 7 via the support portion 12. The handrail portion 14 connects the upper end portions of the pillars 13. The intermediate rail 15 connects between the middle portions of the pillars 13.

  According to the Industrial Safety and Health Act, the height of the handrail portion 14 is set to 85 cm or more, and the height of the intermediate rail 15 is set to 30 cm to 50 cm. For this reason, the handrail part 14 is arrange | positioned at the height of 85 cm, for example. The middle rail 15 is disposed at a height of 30 cm. Further, the pillars 13 are arranged with an interval of about 180 cm.

  The fence body 10 is provided on the upper frame 7 via the support portion 16. The fence body 10 is arrange | positioned so that the edge part on the left side of the upper surface of the cab 1 may be seen from the landing side. The support part 16 fixes the fence body 10 to the upper frame 7 so that the fence body 10 can be tilted toward the center of the cab 1. That is, the fence body 9 and the fence body 10 are tilted so as to approach each other. The fence body 10 is disposed so as to face and be parallel to the fence body 9 in the assembled state. Moreover, the support part 16 supports the fence body 10 so that it may not tilt outside the cab 1 from the state where the fence body 10 stands.

  The fence body 10 has the same configuration as the fence body 9. That is, the fence body 10 includes two pillars 17, a handrail portion 18, and an intermediate rail 19. The description of the specific configuration of the fence body 10 is omitted.

  The fence body 11 is provided between the fence body 9 and the fence body 10. The fence body 11 is arrange | positioned so that the edge part of the back | inner side of the upper surface of the cab 1 may be seen from the landing side. Further, the fence body 11 is arranged so as to be orthogonal to the fence body 9 and the fence body 10 in the assembled state. The safety fence 5 is configured such that each work of assembly and folding can be performed while the fence body 11 is connected between the fence body 9 and the fence body 10. In order to realize such a function, the fence body 11 is divided into three fence portions 20 to 22.

  The fence part 20 is rotatably provided on the fence body 9 via the connecting part 23. The fence part 20 is formed so that the whole external shape exhibits a right-angled isosceles triangle shape by cutting and welding an iron square pipe or a round pipe, for example. Although the fence part 20 may be exhibiting other polygonal shape, in this Embodiment, the case where the fence part 20 is comprised by the rod-shaped members 24 thru | or 26 is shown as an example as the simplest structure. .

  One of the two rod-shaped members 24 and 25 orthogonal to each other (the rod-shaped member 24) is arranged in parallel to the column 13 so as to be adjacent to the column 13 on the back side of the fence body 9. For this reason, the rod-shaped member 24 is arranged in the vertical direction in the assembled state. One end of the rod-shaped member 25 is fixed to the upper end of the rod-shaped member 24. The rod-shaped member 25 is horizontally arranged from the upper end portion of the rod-shaped member 24 toward the fence body 10 in the assembled state. The rod-shaped member 25 functions as a handrail portion in the fence body 11.

  The rod-shaped member 26 is provided between the lower end portion of the rod-shaped member 24 and the other end portion of the rod-shaped member 25. The rod-like member 26 is arranged to have an angle of about 45 degrees with respect to each of the rod-like members 24 and 25. Further, the rod-shaped member 26 is disposed so as to be separated from the rod-shaped member 24 as it goes upward in the assembled state.

  In the fence part 20 having the above-described configuration, the rod-like member 24 is fixed to the column 13 on the back side of the fence body 9 via the connecting part 23. For example, the connection part 23 consists of hinges as shown in FIG. The connecting portion 23 is fixed to a surface facing the landing side of the rod-shaped member 24 and a surface facing the landing side of the column 13 on the back side by welding or a fastening member. The connecting part 23 has a rotating shaft arranged in the vertical direction in the assembled state. The connection part 23 fixes the fence part 20 to the fence body 9 so that the fence part 20 and the fence body 9 open and close between 0 to 90 degrees. Moreover, the connection part 23 supports the fence part 20 so that the fence part 20 may not further rotate to the back side from the state shown in FIG.

  The fence part 21 is rotatably provided on the fence body 10 via the connecting part 27. The fence portion 21 is formed such that, for example, an iron square pipe or a round pipe is cut and welded so that the entire outer shape has a right isosceles triangle shape. Although the fence part 21 may exhibit other polygonal shapes, in this embodiment, the case where the fence part 21 exhibits the same size and the same shape as the fence part 20 is shown as an example as the simplest configuration. ing. That is, the fence part 21 is comprised by the rod-shaped members 28 thru | or 30.

  One of the two rod-shaped members 28 and 29 orthogonal to each other (the rod-shaped member 28) is arranged in parallel to the column 17 so as to be adjacent to the column 17 on the back side of the fence body 10. For this reason, the rod-shaped member 28 is arranged in the vertical direction in the assembled state. One end of the rod-shaped member 29 is fixed to the upper end of the rod-shaped member 28. The rod-shaped member 29 is horizontally disposed from the upper end portion of the rod-shaped member 28 toward the fence body 9 in the assembled state. The rod-shaped member 29 functions as a handrail portion in the fence body 11 together with the rod-shaped member 25.

  The rod-shaped member 30 is provided between the lower end portion of the rod-shaped member 28 and the other end portion of the rod-shaped member 29. The bar-shaped member 30 is arranged to have an angle of about 45 degrees with respect to each of the bar-shaped members 28 and 29. Moreover, the rod-shaped member 30 is arrange | positioned so that it may leave | separate from the rod-shaped member 28 as it goes upwards in an assembly state.

  In the fence portion 21 having the above-described configuration, the rod-like member 28 is fixed to the column 17 on the back side of the fence body 10 via the connecting portion 27. For example, the connection part 27 consists of a hinge as shown in FIG. The connecting portion 27 is fixed to the surface facing the landing side of the rod-shaped member 28 and the surface facing the landing side of the column 17 on the back side by welding or a fastening member. The connecting portion 27 has a rotating shaft arranged in the vertical direction in the assembled state. The connection part 27 fixes the fence part 21 to the fence body 10 so that the fence part 21 and the fence body 10 open and close between 0 to 90 degrees. Moreover, the connection part 27 supports the fence part 21 so that the fence part 21 may not further rotate back from the state shown in FIG.

  The fence part 22 is rotatably provided on the fence part 20 via the connecting part 31. Moreover, the fence part 22 is rotatably provided in the fence part 21 via the connection part 32. The fence portion 22 is formed such that, for example, an iron square pipe or a round pipe is cut and welded so that the entire outer shape has a right isosceles triangle shape. Although the fence part 22 may be exhibiting other polygonal shapes, in this Embodiment, the case where the fence part 22 is comprised by the rod-shaped members 33 thru | or 35 is shown as an example as the simplest structure. .

  One of the two bar-shaped members 33 and 34 (bar-shaped member 33) orthogonal to each other is arranged in parallel to the bar-shaped member 26 so as to be adjacent to the bar-shaped member 26 of the fence portion 20. The bar-shaped member 34 is arranged in parallel to the bar-shaped member 30 so as to be adjacent to the bar-shaped member 30 of the fence portion 21. The rod-shaped member 35 is provided between the end portions of the rod-shaped members 33 and 34. The rod-shaped member 35 is horizontally disposed below the rod-shaped members 25 and 29 in the assembled state. The rod-shaped member 35 is disposed at a height of 30 cm to 50 cm in the assembled state, for example, and functions as an intermediate rail in the fence body 11.

  In the fence portion 22 having the above-described configuration, the rod-shaped member 33 is fixed to the rod-shaped member 26 of the fence portion 20 via the connecting portion 31. Further, the rod-shaped member 34 is fixed to the rod-shaped member 30 of the fence portion 21 through the connecting portion 32. The connection parts 31 and 32 consist of hinges as shown in FIG. 2, for example.

  The connecting portion 31 is fixed to the back surface of the rod-shaped member 26 (the surface facing the back side of the hoistway 8 in the assembled state) and the back surface of the rod-shaped member 33 by welding or a fastening member. The rotation axis of the connecting portion 31 is arranged along the longitudinal direction of the rod-like members 26 and 33 so as to have an angle of about 45 degrees with the rotation axis of the connecting portion 23. The connection part 31 fixes the fence part 22 to the fence part 20 so that the fence part 20 and the fence part 22 open and close between 0 to 180 degrees. Moreover, the connection part 31 supports the fence part 22 so that the fence part 22 may not rotate to the landing side with respect to the fence part 20 in the state shown in FIG.

  The connecting portion 32 is fixed to the back surface of the rod-shaped member 30 and the back surface of the rod-shaped member 34 by welding or a fastening member. The rotation axis of the connecting portion 32 is arranged along the longitudinal direction of the rod-shaped members 30 and 34 so as to have an angle of about 45 degrees with the rotation axis of the connecting portion 27. Further, the rotation axis of the connecting portion 32 is arranged to have an angle of about 90 degrees with the rotation axis of the connecting portion 31. The connection part 32 fixes the fence part 22 to the fence part 21 so that the fence part 21 and the fence part 22 open and close between 0 to 180 degrees. Moreover, the connection part 32 supports the fence part 22 so that the fence part 22 may not rotate to the landing side with respect to the fence part 21 in the state shown in FIG.

  The fence parts 20 thru | or 22 form the same plane in an assembly state, as shown in FIG. In order to prevent the members from contacting each other during folding and assembly, a certain amount of gap is formed between the rod-shaped members 26 and 33. Similarly, a certain amount of gap is formed between the rod-shaped members 30 and 34. Moreover, the connection parts 31 and 32 are arrange | positioned at the substantially same height as the connection parts 23 and 27 in an assembly state.

  3 and 4 show a state in which the fence bodies 9 and 10 are completely tilted to the center side of the cab 1 and are arranged horizontally. In such a state, the fence portion 22 is disposed at the lowest position. The fence parts 20 and 21 are disposed above the fence part 22. The fence bodies 9 and 10 are disposed at the same height above the fence body 11. That is, the fence bodies 9 and 10 are disposed above the fence portions 20 and 21.

  During normal operation of the elevator, the safety fence 5 is held in a folded state above the car room 1 as shown in FIGS. 3 and 4. When performing maintenance of the elevator, the maintenance staff switches the elevator from the normal mode to the maintenance mode. Thereafter, the car device is stopped at a height at which the car room 1 can be boarded from the landing. The maintenance staff stops the car device at a desired height, and then uses the release key to open the landing door from the landing and assemble the safety fence 5.

  The maintenance staff raises the fence body 9 by an operation from the landing and makes the fence body 9 stand upright. At this time, with the displacement of the fence body 9, the fence portion 20 of the fence body 11 is displaced so that the rod-shaped member 24 stands upright. Further, as the fence portion 20 is displaced, the fence portion 22 is displaced in the upright direction. Furthermore, with the displacement of the fence part 22, the fence part 21 is displaced in the upright direction. As a result, the fence body 10 is also displaced in the upright direction.

  When the maintenance worker erects the fence body 9, the maintenance staff fixes the fence body 9 in an upright state by a lock mechanism (not shown). When the fence body 9 is made to stand upright, the fence body 10 is also almost upright, so that the maintenance person then makes the fence body 10 upright and fixes it with the lock mechanism. By arranging both the fence bodies 9 and 10 in an upright state, the safety fence 5 is appropriately arranged so as to surround the upper three sides of the cab 1 as shown in FIG.

When the safety fence 5 is folded, the work may be performed in the reverse procedure.
The maintenance staff first releases the lock mechanism of the fence bodies 9 and 10 by an operation from the landing side. Next, the maintenance person knocks down the fence body 9 (or the fence body 10) from the landing side toward the center of the cab 1. Then, with the displacement of the fence body 9, the fence section 20 rotates around the rotation axis of the connecting section 23 so that the other end of the rod-shaped member 25 approaches the handrail section 14 of the fence body 9. In addition, with the displacement of the fence portion 20, the fence portion 22 is displaced so as to fall toward the center of the cab 1. Furthermore, with the displacement of the fence part 22, the fence part 21 rotates around the rotation axis of the connecting part 27 so that the other end of the rod-shaped member 29 approaches the handrail part 18 of the fence body 10. As a result, the fence body 10 is also displaced in the falling direction.

  The maintenance staff supports the fence body 9 and the fence body 10 that has fallen down by hand, and arranges the fence body 9 and the fence body 10 horizontally above the cab 1.

  If it is the safety fence 5 which has the said structure, both an assembly operation and a folding operation | work can be easily performed by operation from the landing side. At the time of assembling and folding, the safety fence 5 does not protrude beyond the part when it is assembled. Further, since the rear fence body 11 is divided into three fence portions 20 to 22, the safety fence 5 can surround three sides of the car without forming a large gap. In particular, in the specific configuration disclosed in the present embodiment, the rod-shaped members 26, 33, 30, and 34 are disposed obliquely in the fence body 11. It is possible to reliably prevent a large gap from being formed in the rear fence body 11. Further, the rod-shaped members 25 and 29 can function as handrails, and the rod-shaped member 35 can function as an intermediate rail.

  Each landing is equipped with devices such as landing doors, toe guards, and fisher plates. For this reason, although it is not necessary to provide a fence between the pillar 13 on the front side of the fence body 9 and the pillar 17 on the front side of the fence body 10, a pipe-like fence may be provided in this portion.

Embodiment 2. FIG.
FIG. 5 is a perspective view showing a main part of a car device provided with a safety fence 5 according to Embodiment 2 of the present invention. FIG. 6 is a view of the assembled safety fence 5 as seen from the back side of the hoistway 8. In the safety fence 5 in the present embodiment, the configuration of the fence portion 22 of the fence body 11 is different from the configuration disclosed in the first embodiment. Other configurations are the same as the configurations disclosed in the first embodiment.

  The fence part 22 in this Embodiment is formed so that the whole external shape may exhibit trapezoid shape, when an iron square pipe or a round pipe is cut | disconnected and welded, for example. FIGS. 5 and 6 show, as an example, the case where the fence portion 22 is configured by the rod-shaped members 33 to 36.

  The rod-shaped member 35 is provided between the lower ends of the rod-shaped members 33 and 34, and is disposed horizontally in the assembled state. The rod-shaped member 35 functions as an intermediate rail in the fence body 11. The rod-shaped member 36 is provided between the upper ends of the rod-shaped members 33 and 34, and is disposed horizontally in the assembled state. The rod-shaped member 36 functions as a handrail portion in the fence body 11, similarly to the rod-shaped members 25 and 29.

  When the width of the fence body 11 is wider than the width of the fence body 9 or the fence body 10, for example, 220 cm, when the fence parts 20 to 22 are formed in the same size as the first embodiment, There will be a gap between them. In such a case, as shown in FIGS. 5 and 6, a bar-like member 36 is added to make the fence portion 22 trapezoidal. In the above example, the length of the rod-shaped member 36 may be 40 cm. With such a configuration, the safety fence 5 can be formed in accordance with the width of the car room 1. It is possible to provide an appropriate safety fence 5 according to the elevator model.

DESCRIPTION OF SYMBOLS 1 Car room 2 Car door 3 Door drive device 4 Car frame 5 Safety fence 6 Vertical pillar 7 Upper frame 8 Hoistway 9, 10, 11 Fence body 12, 16 Support part 13, 17 Pillar 14, 17 Middle of handrail part 15, 19 Crosspiece 20, 21, 22 Fence part 23, 27, 31, 32 Connecting part 24, 25, 26, 28, 29, 30, 33, 34, 35, 36 Bar-shaped member

Claims (5)

A safety fence that is foldable above the elevator cab,
A car frame that supports the car room;
A first fence body provided on the car frame so as to be tiltable toward the center of the car room;
A second fence body provided on the cage frame so as to be tiltable toward a central portion of the cage room, and disposed so as to face the first fence body in an assembled state;
A third fence provided between the first fence and the second fence;
With
The third fence body is
A first fence portion rotatably provided on the first fence body via a first connecting portion;
A second fence portion rotatably provided on the second fence body via a second connecting portion;
A third fence portion rotatably provided on the first fence portion via a third connection portion, and on the second fence portion via a fourth connection portion;
With
The first connection part is disposed such that the rotation axis has an angle of 45 degrees with the rotation axis of the third connection part,
The second connection part is disposed such that the rotation axis has an angle of 45 degrees with the rotation axis of the fourth connection part,
The third connection part is disposed such that the rotation axis has an angle of 90 degrees with the rotation axis of the fourth connection part ,
The elevator safety fence is supported by the car frame via the first fence body and the second fence body without contacting the car frame in the assembled state . In the folded state,
The first fence part and the second fence part are arranged above the third fence part,
The elevator safety fence according to claim 1, wherein the first fence body and the second fence body are disposed above the first fence portion and the second fence portion. The first fence part is
A first rod-shaped member provided on the first fence body via the first connecting portion and arranged in a vertical direction in an assembled state;
A second rod-shaped member that has an angle of 45 degrees with respect to the first rod-shaped member and is arranged so as to move away from the first rod-shaped member as it goes upward in an assembled state;
With
The second fence part is
A third rod-shaped member provided on the second fence body via the second connecting portion and arranged in the vertical direction in an assembled state;
A fourth rod-shaped member that has an angle of 45 degrees with respect to the third rod-shaped member, and is arranged to move away from the third rod-shaped member as it goes upward in an assembled state;
With
The third fence portion is
A fifth rod-shaped member provided on the second rod-shaped member via the third connecting portion and disposed in parallel to the second rod-shaped member;
A sixth rod-shaped member provided on the fourth rod-shaped member via the fourth connecting portion and disposed in parallel with the fourth rod-shaped member;
An elevator safety fence according to claim 2, comprising:   4. The elevator safety fence according to claim 3, wherein each of the first fence part, the second fence part, and the third fence part has a right-angled isosceles triangle shape. 5. The first fence part and the second fence part each have an overall isosceles right triangle shape,
The elevator safety fence according to claim 3, wherein the third fence portion has a trapezoidal outer shape as a whole.

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