JP2012218838A - Elevator car handrail device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an elevator car handrail device capable of allowing a passenger confined in an elevator car to easily escape from the inside of the car by him/herself.SOLUTION: The elevator car handrail device includes a handrail body having a plurality of engagement ports with the predetermined spacing in the longitudinal direction, a plurality of columnar handrail side branch parts so as to be projected outwardly from an outer peripheral surface of the handrail body, a side wall side branch part to be turnably mounted on a car side wall opposite to the handrail side branch part in which the handrail side branch part is inserted, and a tread part having a shape to be accommodated inside the handrail body and fitted to the engagement port.

Description

  The present invention relates to an elevator car handrail device that allows a passenger to easily escape through a rescue exit to the outside of a car room in an emergency such as a disaster.

  In the conventional elevator apparatus, a rescue door that opens and closes a rescue exit is provided on the ceiling of the passenger compartment, and a folding ladder is disposed on the upper surface of the rescue exit door. Also, a ladder storage lid that covers the folding ladder from above is attached to the upper surface of the passenger compartment ceiling. The folding ladder hangs down from the rescue exit into the car cabin by an operation from above the car.

  Conventionally, when a disaster such as a fire or earthquake occurs and the elevator stops operating, it is common practice to land the car to the nearest floor by hand winding and rescue from the door. When the rescue method cannot be taken, a method of evacuating the passenger from the rescue exit is taken. However, the folding ladder described above requires an operation from the top of the car, and it is difficult for passengers in the car to operate by themselves.

  In view of the above problems, an object of the present invention is to provide an elevator car handrail device that allows passengers to escape from the car by themselves.

  The elevator car handrail device according to the present embodiment includes a handrail main body provided with a plurality of engagement ports at predetermined intervals in the longitudinal direction, and a plurality of columns provided so as to protrude outward from the outer peripheral surface of the handrail main body. A handrail side branch of the shape, a side wall branch that is fitted to the handrail side branch, is pivotally attached to the side wall of the cab facing the handrail side branch, and is housed inside the handrail body. And a step portion having a shape that can be inserted into the engagement port.

  Further, the elevator handrail device of the present embodiment has a protrusion on the outer peripheral surface of the handrail side branch, and has a substantially L-shaped groove on the inner peripheral surface of the side wall branch so as to engage with the protrusion. It is characterized by.

  Moreover, the elevator handrail device of the present embodiment is characterized in that an extension cylinder that is slidable in the longitudinal direction of the handrail body is built in the handrail body.

  According to the elevator car handrail device of the present invention, a passenger confined in the car can easily escape from the car.

It is a schematic structure figure showing the whole elevator device of this embodiment. It is the front view seen from the back | inner side inside the passenger car 15 in FIG. It is a disassembled perspective view which shows the branch part 62a (62b) in FIG. It is a side view which shows the branch part 62a (62b) in FIG. It is the figure which showed the engagement port and hole closing seal of the handrail main body 62a. It is the side view which showed the edge part of the handrail main body 62a. 6A is a partial perspective view showing an end portion of the stepped portion 63, and FIG. 6B is an end portion of the handrail main body 62a showing a state where the stepped portion 63 is housed in the handrail main body 61a. A perspective view is shown, FIG.6 (c) is the side view which showed the terminal part of the handrail main body 61a, FIG.6 (d) has shown the side view of the cap 64a attached to the terminal of the handrail main body 61a. . It is the figure which showed the method of connection of the handrail main body 61a and step part 63 of 1st embodiment. It is the elements on larger scale which showed the state which connected the handrail main bodies 61a and 61b, and the step part 63. FIG. It is a figure which shows the flowchart of the ladder assembly of 1st embodiment. It is the block diagram which installed the ladder of this embodiment. Fig.11 (a) is the perspective view which showed the edge part of the handrail main body 71a of 2nd embodiment, 11 (b) is a side view in Fig.11 (a). FIG. 12A shows a cross-sectional view of the rubber cap, and FIG. 12B shows the shape of the extension cylinder. It is the figure which showed the stowed state of the step part. FIG. 13A is a view showing how to connect the handrail main body 71a and the stepped portion 63, and FIG. 13B is a partially enlarged view showing a state where the handrail main body 71a and the stepped portion 63 are connected. FIG. It is a perspective view which shows the relationship between the handrail main body 81a of 3rd embodiment, and the step part 91a. It is the perspective view which showed the edge part of the handrail main body 82a. It is the figure which showed the connection method of the handrail main body 81a and step part 81 of 3rd embodiment.

  Hereinafter, an elevator apparatus according to an embodiment of the present invention will be described in detail with reference to the drawings.

(First embodiment)
As shown in FIG. 1, the elevator apparatus 10 according to the present embodiment has a hoisting machine (not shown) installed in a machine room 12 above the hoistway 11 and suspended from a main sheave 13 of the hoisting machine. A car 15 is suspended at one end of the lowered main rope 14, and a counterweight 16 is suspended at the other end. A compen- sion rope (or compen- sion chain) 17 for canceling a change in the mass of the main rope 14 due to the position of the car 15 is attached to the lower side of the car 15 and the counterweight 16. Further, a tail cord 18 is suspended and connected in a U-shape from the control panel to the car 15 via a suspension portion on the hoistway 11 side for signal exchange and power feeding.

  FIG. 2 is a front view of the elevator apparatus 10 according to the present embodiment as viewed from the inner side of the car 15.

  As shown in FIG. 2, the elevator car 15 of the present embodiment is provided with a car ceiling 1 at the top, and a rescue exit 2 is provided at the center of the car ceiling 1. A rescue door 3 for opening and closing the rescue port 2 is rotatably attached to the rescue port 2. On the other hand, a car floor 4 is provided below the car 15. Side walls 5 a and 5 b are provided on the side surface of the car 15, and handrails 6 a and 6 b are attached to the side walls 5 a and 5 b along the depth direction of the car 15, respectively.

  The handrail 6a includes a handrail main body 61a having a substantially circular cross section and a branch portion 62a provided at regular intervals in the longitudinal direction of the handrail main body 61a. The handrail main body 61a is connected to the side wall 5a via the branch portion 62a. It is attached. The handrail 6b is attached to the side wall 5b opposite to the side wall 5a to which the handrail 6a is attached in the same manner as the handrail 6a. In addition, although it is preferable that the branch part 62a protrudes perpendicularly | vertically with respect to the side wall 5a, it is not limited to this. Moreover, although the case where the number of branch parts 6a and 6b is two is shown in FIG. 2, the number is not specifically limited.

  3 is an exploded perspective view of the branch portion 62a in FIG. 1, and FIG. 4 is a side view of the branch portion 62a. Since the branch part 62b has the same configuration as the branch part 62a, a description thereof will be omitted.

  As shown in FIGS. 3 and 4, the branch portion 62a includes a side wall side branch portion 621a that is rotatably attached to the side wall 5a and a handrail main body side branch portion 622a that is attached to the handrail main body 61a. The side wall side branch portion 621a has a cylindrical shape, and has an inner peripheral surface 623a having a groove portion 624a processed into a substantially L shape. On the other hand, the handrail main body side branch portion 622a has a columnar shape having a diameter that can be fitted into the side wall side branch portion 621a, and a protrusion 625a is provided on the outer peripheral surface thereof. Note that the side wall branch 621a may be fitted to the handrail main body branch 622a, and the outer periphery of the side wall branch 621a may be polygonal.

  During normal elevator operation, that is, when used as a handrail (hereinafter, also simply referred to as “normal time”), a plurality of handrail body side branch portions 622a are inserted into the opposing side wall side branch portions 621a, and thereafter The side wall branch 622a is rotated to engage the projection 625a with the groove 624a (FIG. 3; arrow M and FIG. 4). On the other hand, in the case of an emergency, that is, when used as a ladder (hereinafter, also simply referred to as “emergency”), the engagement can be released by rotating the side wall side branch portion 622a in the reverse direction to the above ( FIG. 3; arrow N), the handrail body 61a can be removed from the side wall 5a.

  FIG. 5 shows a part of the handrail body 61a. The handrail main body 61a is a cylinder whose both ends are open, and an engagement port 611a for fitting the stepped portion 63 is provided on the outer peripheral surface thereof at regular intervals in the longitudinal direction.

  The engagement port 611a has a shape corresponding to the cross section of the stepped portion 63 so that the stepped portion 63 can be fitted as described above. The engagement port 611a is normally closed with a hole closing seal 612a. The engagement port 611a closed with the hole closing seal 612a is preferably inconspicuous from the viewpoint of design. Therefore, the handrail main body 61a is preferably fixed to the branch portion 62a with the engagement port 611a closed by the hole closing seal 612a facing downward or the side wall 5a.

  FIG. 6 is a view showing an end portion of the handrail main body 61a. As shown in FIG. 6A, the stepped portion 63 has a rectangular cross section and is sized to be inserted into the engagement port 611a of the handrail main body 61a, and is normally housed inside the handrail main body 61a. (FIG. 6 (b)). The inside of the stepped portion 63 is preferably hollow from the viewpoint of weight reduction. The number of the stepped portions 63 is the same as the number of the engagement openings 611a, and is distributed and stored in the handrail main body 61b having the same configuration as the handrail main body 62a and the handrail main body 61a.

  As shown in FIGS. 6B and 6C, a thread 613a is formed on the inner peripheral surface of the end portion of the handrail main body 61a, and a rubber cap 64a having a thread 641a corresponding thereto. The end is closed by attaching. The cap 64a functions to prevent the ladder from slipping in an emergency.

  In an emergency, after removing the handrail main body 61a from the side wall 5a and taking out the stepped portion 63 from the handrail main body 61a, one end of the stepped portion 63 is fitted into the engagement port 611a of the handrail main body 61a (see FIG. 7) FIG. 7; arrow P). The other end of the step 63 is fitted into the engagement port 611b of the handrail main body 61b to complete the ladder step (FIG. 8).

  FIG. 9 shows a flowchart of the ladder assembly of the car handrail device of the present embodiment. When assembling the ladder, first, the side wall branches 61a and 61b are rotated, and the handrail body 61a is removed from the side wall 5a (S1). Next, the caps 64a and 64b attached to the ends of the handrail main bodies 61a and 61b are removed, and the stepped portion 63 housed in the handrail main bodies 61a and 61b is taken out (S2, S3). And after taking out the step part 63, the caps 64a and 64b are again attached to the edge part of the handrail main bodies 61a and 61b, respectively, in order to prevent the ladder from slipping (S4). Finally, the hole closing seals 612a and 612b of the handrail main bodies 61a and 61b are peeled off, and the stepped portion 63 taken out is fitted into the engaging holes 611a and 611b of the handrail main bodies 61a and 61b. Is completed (S5).

  The ladder 100 assembled in this manner allows passengers in the car to escape from the rescue robot 2 installed on the ceiling of the car 15 (FIG. 10).

(Second embodiment)
Since the length of the handrail body depends on the width of the wall to which the handrail body is attached, depending on the size of the car, for example, when the width of the side wall of the car or the width of the back wall is smaller than the height of the car, The ladder mentioned above may not reach the ceiling. Thus, the elevator car cage handrail device according to the second embodiment is configured such that the handrail body in the first embodiment can be extended. Hereinafter, the elevator car handrail device of the second embodiment will be described in detail with reference to FIGS. 11 to 13. In addition, it demonstrates centering on a different part from the car handrail apparatus concerning 1st embodiment mentioned above.

  Fig.11 (a) is a perspective view which shows the state which removed the cap 74a of the edge part of the handrail main body 71a concerning the elevator riding-car handrail apparatus of 2nd embodiment, FIG.12 (b) is FIG. It is a side view which shows the state which attached the cap 74a to the handrail main body 71a edge part in a). 13A shows a cross-sectional view of the cap 73a in FIG. 12, and FIG. 13B shows a side view of the extension cylinder 75a.

  As shown in FIGS. 11 (a) and 11 (b), the passenger car handrail device of the second embodiment is for extension for extending the handrail main body 71a in addition to the stepped portion 63 inside the handrail main body 71a. The cylinder 75a is accommodated.

  As shown in FIG. 12A, the cap 74a has a screw thread 741a as in the cap 64a of the first embodiment. The thread 741a has a groove 742a having the same diameter as that of the stepped portion 752a of the extending cylinder 75a. Normally, when the end portion of the handrail main body 71a is closed, the stepped portion 752a is formed in the grooved portion 742a. It is in a state of being fitted.

  As shown in FIG. 12 (b), the extension cylinder 75a is a cylinder having a diameter smaller than the inner diameter of the handrail body 71a, and the outer peripheral surface thereof is cut into a square having the same size as the handrail body 71a. An abutment 751a is provided. Further, one end of the extension cylinder 75a has a stepped portion 752a having a diameter lowered by one step so that it can be easily extended from the handrail main body 71a. The extension cylinder 75a is accommodated inside the handrail body 71a so as to be slidable in the longitudinal direction of the handrail body 71a.

  FIG. 13 is a diagram illustrating an operation of fitting the stepped portion 63 to the handrail main body 71a and the extension cylinder 75a in the car handrail device of the second embodiment.

  First, after taking out the step part 63 from the handrail main body 71a, as shown in FIG. 13A, the extension cylinder 75a is extended from the handrail main body 71a, and the engagement port 711a of the handrail main body 71a and the extension cylinder 75a are engaged. Match the joint 751a (arrow R). Next, the extension cylinder 75a is fixed by fitting one end of the stepped portion 63 there (arrow S). The other end of the stepped portion 63 is also fitted into the handrail main body 71b in the same procedure as the handrail main body 71a, and the ladder step is completed (FIG. 13B). Thus, the extension cylinder 75a can extend the length of the handrail body 71a, that is, the length of the ladder.

  As another embodiment, the length of the extending cylinder 75a to be extended can be adjusted at regular intervals by providing a plurality of engaging ports 751a provided in the extending cylinder 75a at regular intervals.

(Third embodiment)
The passenger car handrail device according to the third embodiment is configured such that a step portion is attached in advance to a handrail main body. Hereinafter, the car handrail device according to the third embodiment will be described in detail with reference to FIGS. 14 to 16. In addition, description is abbreviate | omitted about the part which is common in the boarding handrail apparatus of 1st embodiment mentioned above.

  FIG. 14 is an exploded perspective view of the handrail main body 81a and the stepped portion 91a of the third embodiment, and FIG. 15 shows a state in which the cap 63a at the end of the handrail main body 81a of the third embodiment is removed. It is a perspective view.

  As shown in FIG. 14, the car handrail device of the third embodiment has a configuration in which a step portion 91a is attached to a handrail main body 81a.

  The handrail main body 81a is provided with a plurality of storage portions 811a for storing the stepped portions 91a along the longitudinal direction. The storage portion 811a has a substantially L-shaped cross section having a groove portion 812a for fitting the end portion on the side of the notch portion 912a of the stepped portion 91a when the ladder is assembled.

  The step portion 91a has a shape that fits into the storage portion 811a of the handrail main body 81a. One end of the stepped portion 91a has a notch 812a for pulling out the stepped portion 91a, and the other end of the stepped portion 91a is an axis (supported by a support member 92 such as a screw in the storage portion 811a). It is attached so as to be rotatable around a two-dot chain line B).

  The storage portion 811a of the handrail main body 81a is preferably made inconspicuous during normal times from the viewpoint of design. Therefore, it is preferable that the handrail main body 81a is fixed to the branch portion 62a with the storage portion 811a facing the lower side or the side wall 5a.

  On the inner peripheral surface of the end portion of the handrail main body 81a, a screw thread 813a is formed in the same manner as the handrail main body 61a of the first embodiment. As the cap attached to the end portion of the handrail main body 81a, the cap 63a of the first embodiment described above can be used.

  FIG. 16 is a view showing the operation of the step portion 91a in the car handrail device of the third embodiment, and shows a cross-sectional view along the two-dot chain line A-A ′ in FIG. 15.

  First, as in the car handrail device of the first embodiment, after removing the handrail main body 81a from the side wall 5a, as shown in FIG. 16 (a), the notch 911a of the step 91a is hooked with a finger. By pulling out the step portion 91a from the handrail main body 81a, the step portion 91a is pulled out around the support portion xx (arrow T1). Similarly, the step portion 91b of the handrail main body 81b is pulled out (arrow T2). The ladder step 91a is completed by fitting the drawn step portion 91a into the groove portion 812b of the storage portion 811b and the step portion 91b into the groove portion 812a of the storage portion 811a, respectively (FIG. 16B). ).

DESCRIPTION OF SYMBOLS 1 ... Car room ceiling 2 ... Rescue exit 3 ... Rescue exit door 4 ... Car floor 5 ... Side wall 6 ... Handrail 10 ... Elevator device 11 ... Hoistway 12 ... Machine room 13 ... Main sheave 14 ... Main rope 15 ... Ride car Chamber 16 ... Balance weight 17 ... Compen rope 18 ... Tail cord 61 ... Handrail body 62 ... Branch 63 ... Step 621 ... Side wall side branch 622 ... Handrail body side branch

Claims (6)

A handrail body provided with a plurality of engagement ports at predetermined intervals in the longitudinal direction;
A plurality of columnar handrail side branches provided so as to protrude outward from the outer peripheral surface of the handrail body;
A side wall side branch portion that is rotatably inserted to a side wall of the passenger compartment facing the handrail side branch portion, and into which the handrail side branch portion is inserted,
An elevator car handrail device, comprising: a step portion that is housed inside the handrail main body and has a shape that can be inserted into the engagement port.   The elevator according to claim 1, further comprising: a protrusion on the outer peripheral surface of the handrail side branch, and a substantially L-shaped groove on the inner peripheral surface of the side wall branch so as to engage with the protrusion. Ride car handrail device.   3. The elevator car handrail device according to claim 1, wherein an extension cylinder that is slidable in a longitudinal direction of the handrail main body is built in the handrail main body. 4. A hoistway,
A cab that goes up and down in this hoistway;
Cylindrical side wall side branch that is pivotably attached to the side wall of the passenger compartment,
A columnar handrail side branch that is fitted into the side wall branch,
A handrail main body provided with a plurality of engagement ports at predetermined intervals in the longitudinal direction, attached to the handrail side branch,
An elevator apparatus comprising: a step portion that is housed inside the handrail body and has a shape that can be inserted into the engagement port.   The elevator according to claim 4, further comprising: a protrusion on the outer peripheral surface of the handrail side branch, and a substantially L-shaped groove on the inner peripheral surface of the side wall branch so as to engage with the protrusion. apparatus.   The elevator apparatus according to claim 4 or 5, wherein an extension cylinder slidable in a longitudinal direction of the handrail main body is built in the handrail main body.

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