JP5082581B2 - Handrail device in elevator car - Google Patents

Description

The present invention relates to in-car handrail device provided in the cab of the elevator.

  Some elevators have a handrail device installed in a car room in consideration of passengers. 13 and 14 show a conventional handrail device in a car provided in an elevator car room. In an elevator car handrail device, a bar-shaped handrail 26 is generally supported by a plurality of brackets 25 fixed to a car room wall, whereby the handrail 26 is arranged at a predetermined height in the car room.

  In the related art, the in-car handrail device is attached to the car room wall according to the following procedure. That is, first, an attachment hole 27a for fixing the bracket 25 is formed at a predetermined position of the wall panel 27 forming the cage wall. Next, the fixing washer 28 in which screw holes are formed in advance is addressed from the back side of the wall panel 27 in accordance with the position of the mounting hole 27 a, and the fixing washer 28 is fixed to the back surface of the wall panel 27. Then, the mounting screw 29 is tightened in the screw hole of the fixing washer 28 from the car room, the bracket 25 is fixed to the wall panel 27, and the handrail 26 is fixed to the bracket 25, so that the state shown in FIGS. Finalize.

  On the other hand, as a prior art of the handrail device in the car, by attaching a fixing washer having a screw hole formed in advance at a predetermined position on the back side of the wall panel, the handrail device in the car can be operated only from the inside of the car room. An apparatus that can be attached has been proposed (see, for example, Patent Document 1).

JP-A-7-97163

  In the conventional car handrail device shown in FIGS. 13 and 14, when the car handrail device is attached, the fixing washer must be fixed at a predetermined position on the back surface of the wall panel. There was a problem that workability was poor because workers were required for each person.

  On the other hand, in the thing of patent document 1, although it is comprised so that attachment of the handrail apparatus in a cage can be performed only by the operation | work from a cage room, in order to implement | achieve this, a fixing washer is previously attached to the back surface of a wall panel. Must be fixed in place. That is, the thing of patent document 1 was able to respond | correspond only to the existing elevator etc. with which the handrail apparatus in a car is attached to a newly installed elevator, or the attachment of the handrail apparatus in a car is provided as an option. Therefore, for example, when attaching an in-car handrail according to a customer's request to an existing elevator that is not supposed to be attached to an in-car handrail device, the same procedure as described above is required and the same problem occurs. It was.

  Also, recently, due to space saving of elevators, there is often a case where there is not enough space for workers to enter between the car and the hoistway wall. In such a case, since the worker cannot go around to the back side of the cab wall, it has been necessary to dismantle the cab wall and attach the handrail device in the car.

The present invention has been made to solve the above-described problems. The object of the present invention is to easily attach the car to a predetermined position on the wall of the car room only by working from the car room. It is another object of the present invention to provide an elevator car handrail device that can easily cope with the problem.

An elevator car handrail device according to the present invention includes a handrail disposed at a predetermined height in an elevator car room, a bracket that supports the handrail, a fixed seat that is provided in the bracket and has a mounting hole, and a car. A flange portion larger than the mounting hole formed in the wall panel of the chamber, a nut support portion that protrudes from one side of the flange portion, and a long hole is formed in the protruding direction, via an axis orthogonal to the longitudinal direction of the long hole The nut support part has a nut part that is rotatable and movable along the long hole and is formed with a screw hole orthogonal to the shaft, and the nut support part and the nut part are inserted into the mounting hole from the inside of the cage. The nut portion is disposed on the back side of the wall panel through the mounting hole, and the fixing seat is attached to the wall panel so that the fixing seat covers the flange portion. Inserted from the wall A handrail fixing screw fastened to the screw hole of the nut portion on the back side of the nell, and the wall panel is sandwiched between the flange portion and the nut portion, and the fixing seat is sandwiched between the flange portion and the handrail fixing screw. The nut means and the bracket are respectively fixed to the wall panel.

  According to the present invention, the handrail device in the car can be easily attached to a predetermined position on the wall of the car room only by work from the car room, and can be easily adapted to an existing elevator.

  In order to explain the present invention in more detail, it will be described with reference to the accompanying drawings. In addition, in each figure, the same code | symbol is attached | subjected to the part which is the same or it corresponds, The duplication description is simplified or abbreviate | omitted suitably.

Embodiment 1 FIG.
1 is a front view showing an elevator handrail device in an elevator according to Embodiment 1 of the present invention, FIG. 2 is a cross-sectional view taken along line AA of the in-car handrail device shown in FIG. 1, and FIG. 3 is an in-car handrail shown in FIG. BB sectional drawing of an apparatus, FIG. 4 is C arrow directional view of the handrail apparatus in a cage shown in FIG.

  The in-car handrail device provided in the elevator cab includes a plurality of brackets 1 (two in FIGS. 1 to 4) provided on the cab wall and bracket fixing for fixing the bracket 1 to the cab wall. It is constituted by means 2 and a bar-shaped handrail 3 supported by the bracket 1.

  The handrail 3 is horizontally arranged at a predetermined height in the car room so that an elevator passenger can easily hold the handrail 3. Inside the handrail 3, as shown in FIG. 1 and FIG. 2, a rail 4 with dovetail grooves is provided along the longitudinal direction. And the grip part 5 which a passenger grips is arrange | positioned so that the rail 4 with a dovetail may be covered, for example, it is being fixed to the said rail 4 with a dovetail groove by the countersunk screw 6 at predetermined intervals.

  As shown in FIGS. 3 and 4, the bracket 1 is provided with an L-shaped column 7 constituting a main part, handrail fixing means 8 provided at one end of the column 7, and the other end of the column 7. It is constituted by a fixed seat 9. The handrail fixing means 8 is for supporting the handrail 3 on the bracket 1 and is configured to be fixed at an arbitrary position of the handrail 3. For example, the handrail fixing means 8 includes a plate-like mounting seat 10 provided at one end of the support column 7 by welding or the like, and a screw seat 12 of a fixing screw 11 provided on the mounting seat 10. The one end portion of the support column 7 is fixed to the handrail 3 by sandwiching the protruding portion 4a. That is, the handrail fixing means 8 (bracket 1) becomes slidable along the dovetail rail 4 when the fixing screw 11 is loosened, and by tightening the fixing screw 11, any rail of the dovetail rail 4 can be provided. Fixed in position. The fixed seat 9 has a function of a flange provided on the bracket 1 and is fixed to the other end surface of the column 7 by a flat head screw 13 or the like. The fixed seat 9 is formed with a plurality of mounting holes for mounting the other end of the column 7 to the cab wall.

  The bracket fixing means 2 is for fixing the bracket 1 (the other end of the support column 7) to the car room wall only from the inside of the car room. For example, the rotary nut 14 (nut means) and the handrail And a fixing screw 15.

  5 is a view showing a rotary nut according to Embodiment 1 of the present invention, and FIG. 6 is a cross-sectional view of the rotary nut shown in FIG. As shown in FIGS. 5 and 6, the rotary nut 14 is composed of a flange portion 16, a nut support portion 17, and a nut portion 18, and only a work from the inside of the car room using the handrail fixing screw 15 is performed. It is fixed to the wall panel 19 which forms. Specifically, the flange portion 16 has a shape that is slightly larger than an attachment hole (not shown in FIGS. 1 to 4) for attaching the in-car handrail device formed in the wall panel 19, and its center. A through hole 16a is formed in the portion. The nut support portion 17 is erected on one side surface of the flange portion 16 so as to protrude from both sides of the through hole 16a. Moreover, the nut support part 17 is arrange | positioned in parallel so that it may oppose with a predetermined | prescribed clearance gap, and the long hole 17a is formed along the longitudinal direction.

  The nut portion 18 is a portion to which the screw portion of the handrail fixing screw 15 is fastened, and is provided so as to be rotatable with respect to the nut support portion 17 and movable along the long hole 17a. Has been placed. Here, 18 a is a shaft for rotatably supporting the nut portion 18 with respect to the nut support portion 17. The shaft 18a protrudes from both side surfaces of the nut portion 18 and is provided so as to penetrate each long hole 17a. The shaft 18a is arranged so that its axial direction is orthogonal to the longitudinal direction of the long hole 17a. Reference numeral 18 b denotes a screw hole formed in the central portion of the nut portion 18. The screw hole 18b is formed so that the handrail fixing screw 15 is screwed when the handrail device in the car is attached, and is orthogonal to the axial direction of the shaft 18a. Reference numeral 18 c denotes an inclined surface formed on the nut portion 18. The inclined surface 18c is formed at one end portion in the longitudinal direction of the nut portion 18 having a substantially quadrangular prism shape as a whole, and the flange portion 16 is arranged in a state where the nut portion 18 is arranged in parallel to the length of the long hole 17a. It forms so that it may have a predetermined angle with respect to one side surface.

  When the bracket fixing means 2 having the above-described configuration is used to fix the bracket 1 to the car room wall, first, a rotation type is provided from the car room to a mounting hole for attaching the handrail in the car formed in advance on the wall panel 19. Insert the nut 14. At this time, the rotary nut 14 is inserted into the mounting hole of the wall panel 19 in such a state that the length of the nut portion 18 faces the same direction as the length of the nut support portion 17 as shown in FIG. . Then, the rotary nuts 14 are inserted into all the mounting holes formed in the wall panel 19, the flange portions 16 of the rotary nuts 14 are placed in the cage, and the nut support portions 17 and the nut portions 18 are connected to the wall panel 19. It arrange | positions in the state protruded from the back surface of the wall panel 19 through the attachment hole.

  After the rotary nut 14 is disposed in the above state, the fixed seat 9 fixed to the other end of the column 7 is directed to the wall panel 19 so as to cover the flange portion 16 disposed in the car room. 9 is adjusted so that the positions of the mounting holes 9 and the through holes 16a of the flange portion 16 coincide. Then, in this state, the handrail fixing screw 15 is inserted into the mounting hole of the fixing seat 9 from the inside of the cab, and is fastened to the screw hole 18b of the nut portion 18 on the back side of the wall panel 19, whereby the fixing seat 9, that is, the bracket 1 is fixed. Fix to the wall panel 19.

  The handrail fixing screw 15 inserted from the mounting hole of the fixing seat 9 reaches the back side of the wall panel 19 through the through hole 16a of the flange portion 16, and then the tip portion contacts the inclined surface 18c of the nut portion 18. To do. Then, the nut portion 18 rotates about 90 degrees so that the force received from the handrail fixing screw 15 is released by the inclined surface 18 c when the handrail fixing screw 15 is further pushed into the back, and the screw hole 18 b is formed on the handrail fixing screw 15. It is arranged in a straight line with respect to the screw portion. When the handrail fixing screw 15 is rotated (tightened) from such a state, the handrail fixing screw 15 is engaged with the screw hole 18b, and the handrail fixing screw 15 enters until the screw head contacts the fixing seat 9. And the handrail fixing screw 15 moves along the long hole 17a until the nut part 18 contacts the back surface of the wall panel 19, after the screw head contacts the fixing seat 9. FIG. That is, finally, the wall panel 19 is sandwiched between the flange portion 16 and the nut portion 18, and the fixing seat 9 is sandwiched between the flange portion 16 and the screw head of the handrail fixing screw 15, thereby rotating the nut. 14 and the bracket 1 are fixed to the wall panel 19, respectively.

  Reference numeral 20 denotes a cover for covering the fixed seat 9 and the handrail fixing screw 15 from the car room after the fixing seat 9 is attached to the wall panel 19 by the above procedure, and 21 is a presser for fixing the cover 20 to a predetermined position of the column 7. It is rubber. FIG. 4 shows a state in which the cover 20 and the handrail 3 are removed.

  Next, the operation | movement at the time of attaching the handrail apparatus in a cage which has the said structure to a cage room wall is demonstrated. First, the worker determines the mounting position of the in-car handrail device in the car room. And based on the determined attachment position, the attachment hole for attaching the other end part of the bracket 1 to the predetermined position of the wall panel 19 is formed, and the rotary nut 14 is inserted into each formed attachment hole. Next, the screw seat 12 is arranged in the dovetail rail 4 with the fixing screw 11 of the handrail fixing means 8 relaxed, and the bracket 1 is attached to the handrail 3 so as to be slidable in the longitudinal direction. Further, the presser rubber 21 is removed from between the cover 20 and the support column 7 to leave the cover 20 free.

  Then, the operator places the fixed seat 9 fixed in advance on the other end of the bracket 1 at a predetermined position of the wall panel 19 and fixes the fixed seat 9 to the wall panel 19 using the handrail fixing screw 15. After both the brackets 1 are fixed to the wall panel 19, the handrail 3 is repositioned at a desired position, and the fixing screw 11 is tightened to fix the handrail 3 to the bracket 1. Further, after the cover 20 is disposed so as to cover the fixed seat 9, the cover 20 is fixed by the presser rubber 21.

  According to the first embodiment of the present invention, the in-car handrail device can be easily attached to a desired position of the wall panel 19 only by work from the car room. Therefore, only one worker is required to attach the handrail device in the car, and it is possible to improve workability and reduce work costs.

  Moreover, even if it is an existing elevator, the in-car handrail device of the said structure is easily attached to the arbitrary positions of a cab wall only by the operation | work from a cab interior. The car handrail device having the above-described configuration can of course be attached to a newly installed elevator. However, generally, when a car handrail device is attached to a newly installed elevator, an existing car handrail device is provided as an option. When an elevator is refurbished and an in-car handrail device is added, a nut or the like is often provided in advance on the back surface of the wall panel 19 that is the mounting position of the in-car handrail device. In addition, in existing elevators, it is necessary to perform repair work in a short period of time in order to prevent a decrease in elevator service. Therefore, the above-mentioned in-car handrail device that can be mounted in a short time only by work from the car room is a particularly effective means for an existing elevator that is not supposed to be installed in the car handrail device.

  It is also effective for space-saving elevators where sufficient space for workers to enter between the car and the hoistway wall is not secured, and the worker falls into the hoistway. Such an accident can be surely prevented.

Embodiment 2. FIG.
7 is a front view showing an elevator car handrail device according to Embodiment 2 of the present invention, FIG. 8 is a side view showing an elevator car handrail device according to Embodiment 2 of the present invention, and FIG. 10 is a cross-sectional view taken along line EE of the in-car handrail device shown, FIG. 10 is an FF cross-sectional view of the in-car handrail device shown in FIG. 7, and FIG. 11 is a view taken along the arrow G of the in-car handrail device shown in FIG. 10 shows a state in which the handrail 3 is removed, and FIG. 11 shows a state in which the handrail 3 and the cover 20 are removed.

  7 to 11, the bracket 1 includes the support column 7 and the handrail fixing means 8, and a fixing seat 9 and a mounting seat plate 22 provided at the other end of the support column 7. As in the case of the first embodiment, the fixed seat 9 is fixed to the other end surface of the column 7 by a flat head screw 13 or the like. The mounting seat plate 22 has a rectangular shape whose width and height are both larger than those of the fixed seat 9, and is fastened and fixed to the back surface of the fixed seat 9 by a countersunk screw 23. In addition, the mounting seat plate 22 is formed with a mounting hole (not shown) for mounting the other end of the support column 7 on the wall of the cab in the center.

  Next, the operation | movement at the time of attaching the handrail apparatus in a cage which has the said structure to a cage room wall is demonstrated. First, the worker forms a mounting hole for mounting the other end of the bracket 1 at a predetermined position of the wall panel 19 in the car room.

  Here, the wall panel 19 forming the cab wall generally needs to secure a predetermined strength as the cab wall, and an L-shaped reinforcing plate 24 as shown in FIG. It is often provided. Therefore, when the worker forms the attachment hole in the wall panel 19, the attachment hole may be formed at the position H of the rising portion of the reinforcing plate 24 as shown in FIG. In such a case, the operator forms a mounting hole again at the position J close to the position H so as to avoid the reinforcing plate 24. Since the reinforcing plate 24 is generally arranged in the vertical direction in many cases, an attachment hole is preferably formed at a position J that is shifted from the position H by a predetermined distance in the horizontal direction. After the mounting hole is formed at the position J, the mounting hole is formed in the wall panel 19 in accordance with the position of the mounting hole formed in the mounting washer 22, and the mounting hole other than the position H that has been opened by mistake, The rotary nut 14 is inserted. Further, after inserting the presser rubber 21 and the cover 20 into the support column 7, the operator fastens and fixes the fixing seat 9 to the other end of the support column 7 with the countersunk screw 13 and the mounting seat plate 22 with the countersunk screw 23. Keep it.

  Then, the operator hides both the flange 16 of the rotary nut 14 and the mounting hole at the position H that was initially opened, with the mounting washer 22 fixed to the other end of the bracket 1. The mounting washer 22 is fixed to the wall panel 19 by using a handrail fixing screw 15 that reaches a predetermined position of the wall panel 19. After both the brackets 1 are fixed to the wall panel 19, the handrail 3 is repositioned at a desired position, and the fixing screw 11 is tightened to fix the handrail 3 to the bracket 1. The rest of the configuration and effects are the same as those of the first embodiment.

  According to the second embodiment of the present invention, even when the mounting hole is formed at a position that interferes with the reinforcing member 24, the mounting hole can be hidden by the mounting washer 22, There will be no design problems after installation of the handrail device. Further, since the mounting seat plate 22 has a predetermined width and height and is mounted in surface contact with the wall panel 19, the rigidity of the mounting portion of the in-car handrail device can be improved.

  Further, in the existing elevator, it is difficult to grasp the state of the back side of the wall panel 19 from the interior of the car. In practice, the position of the reinforcing plate 24 provided on the back surface of the wall panel 19 is not performed unless investigation or the like is performed. I don't know. For this reason, the use of the mounting washer 22 eliminates the time and cost for the above-mentioned investigation and the like, and it is possible to provide the mounting of the handrail device in the car quickly and inexpensively.

  7 to 11 is attached with the screw head of the handrail fixing screw 15 exposed in the car room. For this reason, for example, the handrail fixing screw 15 has a predetermined shape that can be fastened and relaxed only by a special tool (for example, a screw head having an elliptical shape and a groove for a driver is eliminated), It may be prevented that the handrail device in the car is removed due to mischief such as an elevator passenger. Further, in order to prevent the countersunk screw 23 fixing the fixing seat 9 from being removed due to mischief or the like, the lower end portion of the cover 20 covering the countersunk screw 23 is welded to the mounting washer 22 as shown in FIG. It may be fixed by. Note that the above-described means for fixing the cover 20 by a predetermined method that cannot be removed by a general tool such as welding can also be applied to the case of the first embodiment.

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a front view showing an elevator car handrail device in Embodiment 1 of the present invention. It is AA sectional drawing of the handrail apparatus in a cage shown in FIG. It is BB sectional drawing of the handrail apparatus in a cage shown in FIG. It is C arrow line view of the handrail apparatus in a cage shown in FIG. It is a figure which shows the rotary nut in Embodiment 1 of this invention. It is DD sectional drawing of the rotary nut shown in FIG. It is a front view which shows the handrail apparatus in the elevator car in Embodiment 2 of this invention. It is a side view which shows the handrail apparatus in the elevator car in Embodiment 2 of this invention. It is EE sectional drawing of the handrail apparatus in a cage shown in FIG. It is FF sectional drawing of the handrail apparatus in a cage shown in FIG. It is a G arrow line view of the handrail apparatus in a cage shown in FIG. It is a figure for demonstrating the structure of the cab room wall of an elevator. It is a front view which shows the conventional handrail apparatus in the elevator car. It is KK sectional drawing of the handrail apparatus in a cage shown in FIG.

Explanation of symbols

1 Bracket 2 Bracket fixing means 3 Handrail 4 Dovetail rail,
4a Protruding part 5 Holding part 6 Countersunk screw 7 Post 8 Handrail fixing means 9 Fixed seat 10 Mounting seat 11 Fixing screw 12 Screw seat 13 Countersunk screw 14 Rotary nut 15 Handrail fixing screw 16 Flange part 16a Through hole 17 Nut support part 17a Long Hole 18 Nut portion 18a Shaft 18b Screw hole 18c Inclined surface 19 Wall panel 20 Cover 21 Presser rubber 22 Mounting seat plate 23 Countersunk screw 24 Reinforcement plate 25 Bracket 26 Handrail 27 Wall panel 27a Mounting hole 28 Fixing washer 29 Mounting screw

Claims (5)

A handrail arranged at a predetermined height in the elevator car room;
A bracket for supporting the handrail;
A fixing seat provided in the bracket and having a mounting hole;
A flange portion that is larger than the mounting hole formed in the wall panel of the cab, a nut support portion that protrudes from one side surface of the flange portion and has a long hole formed in the protruding direction, and an axis that is orthogonal to the longitudinal direction of the long hole A nut portion that is rotatably provided on the nut support portion and movable along the long hole, and has a screw hole that is orthogonal to the shaft, the nut support portion and the nut portion There is inserted from the cab to the mounting hole, the nut portion is a nut means which is arranged on the back side of the wall panel through the mounting hole,
In a state where the fixed seat is addressed to the wall panel so as to cover the flange portion, the fixed seat is inserted into the mounting hole of the fixed seat from the interior of the cage, and is tightened to the screw hole of the nut portion on the back side of the wall panel. A handrail fixing screw,
With
The wall panel is fixed by the flange part and the nut part, and the fixing seat is clamped by the flange part and the handrail fixing screw, whereby the nut means and the bracket are fixed to the wall panel, respectively. A handrail device in an elevator car characterized by being made. A rail provided along the length of the handrail;
A handrail fixing means provided on the bracket, slidable along the rail, and fixed at an arbitrary position of the handrail;
The elevator car handrail device according to claim 1, comprising:   The handrail fixing screw in the elevator car according to claim 1 or 2, wherein the handrail fixing screw has a predetermined shape that can be fastened and relaxed only by a special tool. A cover that covers the fixing seat and the handrail fixing screw from the interior of the car;
With
The elevator car handrail device according to claim 1 or 2, wherein the cover is fixed by a predetermined method that cannot be removed by a general tool. The nut portion has a length in a direction orthogonal to both the shaft and the screw hole, and the nut portion is rotated with respect to the nut support portion by being pushed at one end portion by a tip portion of the handrail fixing screw. The elevator car handrail device according to any one of claims 1 to 4, wherein an inclined surface is formed.

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