JP5103898B2 - Car suspension car mounting device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a car suspension sheave fitting device and a rope anchoring device enabling the reduction of a pit depth and a reduction in the weight of a car which are manufacturable at lower costs. <P>SOLUTION: This car suspension sheave fitting device of an underslung elevator comprises a car frame vertical column 3, a guide shoe 2 installed on the car frame vertical column opposite to a guide rail 1, a frame upper beam and a frame lower beam 5 installed between the upper and lower parts of the car frame vertical column, suspension sheaves 16 disposed at both ends of the car frame lower beam, respectively, and a main rope 17 wrapped around the suspension sheaves through a gap between the rear surface of the car frame vertical column and the side wall of the cage. The rope anchoring device of the underslung elevator comprises a car frame vertical column, a guide shoe installed on the car frame vertical column opposite to a guide rail, a car frame upper beam and a car frame lower beam installed between the upper and lower parts of the car frame vertical column, a rope anchoring metal fitting fitted to the rear surface of the car frame vertical column, and a main rope connected to the rope anchoring metal fitting through a rope shuckle while passing through the gap between the rear surface of the car frame vertical frame and the side wall of the cage. <P>COPYRIGHT: (C)2008,JPO&amp;INPIT

Description

  The present invention relates to an elevator car suspension vehicle mounting device and a leash device.

  In a conventional elevator car suspension car mounting device, suspension cars are arranged at both ends of a suspension car attachment beam that passes obliquely with the longitudinal direction of the car frame lower beam below the car frame lower beam (for example, a patent Document 1), a suspension vehicle mounting beam provided separately in parallel to the car frame lower beam, and suspension vehicles arranged at both ends of the suspension vehicle mounting beam (see, for example, Patent Document 2), and both ends of the car frame lower beam And a guide shoe and an emergency stop device are provided on one side surface and the other side surface of both ends of the car frame lower beam so that the pair of guide rails correspond to the guide rail and the emergency stop device. There is known one that is arranged so as to be shifted back and forth in the depth direction (for example, see Patent Document 3).

  Further, in the conventional elevator pawl stop device, as shown in FIG. 9, the pawl attachment beam 20 passed below the car frame lower beam 5 so as to be oblique to the longitudinal direction of the car frame lower beam 5. There are known ones in which ropes (rope shackles 19) are arranged at both ends (see, for example, Patent Document 4). In FIG. 9, 1 is a guide rail, 3 is a car frame vertical column, 4 is a car frame upper beam, 5 is a car frame lower beam, 10 is a shock absorber, 11 is a shock absorber plate, 12 is a car room, 13 A car door, 14 is a car floor, 15 is a car sill, 17 is a main rope, 19 is a rope shackle, and 20 is a leash mounting beam.

Japanese Utility Model Publication No. 55-117466 Japanese Patent Laid-Open No. 3-8686 JP 2005-213004 A International Publication No. 2004/022471 Pamphlet

In the car suspension vehicle mounting apparatus disclosed in Patent Document 1, suspension vehicles are arranged at both ends of a suspension vehicle attachment beam that passes under the car frame lower beam so as to be oblique to the longitudinal direction of the car frame lower beam. Therefore, there has been a problem that the size of the elevator car increases downward by the thickness of the suspension car mounting beam, and the depth of the pit provided at the lower part of the hoistway has to be increased accordingly. Furthermore, the provision of the suspension vehicle mounting beam, which is an oblique member, raises the problem that the weight of the entire car is increased and the structure is complicated.
In addition, in the car suspension vehicle mounting apparatus disclosed in Patent Document 2, a separate suspension vehicle mounting beam is provided in parallel with the car frame lower beam. Therefore, a member for mounting the suspension vehicle is also necessary in this case. There is a problem that the overall weight is increased compared to the case where the suspension vehicle mounting member is not provided, and a support point where the guide rail engaged with the lower beam and the upper beam of the car frame via the guide shoe supports the car. And the main rope wound around the suspension vehicle cannot match the suspension point at which the car is suspended, so the following two problems arise.
That is, one is a point in which an offset load is generated due to a deviation between the support point by the guide rail and the suspension point by the main rope, and the wear of the guide shoe and the guide rail becomes intense, and the other is the opposite of the guide rail. In order to prepare for the moment of inertia applied to the suspension car and the suspension car mounting beam when the emergency stop device provided on the car frame lower beam is activated, the suspension car and the suspension car mounting beam must be secured sufficiently. It is a complicated point.
In the car suspension vehicle mounting apparatus disclosed in Patent Document 3, a guide shoe and an emergency stop device are provided on one side surface and the other side surface of both ends of the car frame lower beam, and the pair of guide rails are connected to the guide rail and the emergency stop device. Are arranged so as to be shifted back and forth in the depth direction so as to correspond to the above. For this reason, there is a possibility that the entire car will rotate with respect to the vertical axis and the coupling between the guide rail and the guide shoe may be disengaged, and there is a problem that a separate stopper is required to prevent this disengagement.

  On the other hand, in the conventional elevator pawl device shown in Patent Document 4, both ends of the pawl mounting beam passed below the car frame lower beam so as to be oblique to the longitudinal direction of the car frame lower beam. Since the pawl is located, the elevator car size will increase downward by the thickness of the pawl mounting beam, and the depth of the pit provided at the lower part of the hoistway must be increased accordingly. And the problem that the weight of the entire car is increased and the structure is complicated.

The present invention has been made to solve the above-described problems, and a first object is to provide a car suspension vehicle mounting device and a pawl device that can reduce the pit depth.
In addition to the first object, the second object is to obtain a car suspension vehicle attachment device and a rope anchoring device that can reduce the weight of the car at a lower cost than conventional ones.

In the car suspension vehicle mounting device provided in the lift type elevator according to the present invention, a car frame vertical column, the guide shoe provided on the vertical frame column so as to face the guide rail, and the car frame A car frame upper beam spanned between the upper vertical columns, and a car frame lower beam composed of a pair of frame members disposed between the lower car column vertical columns and sandwiched between the lower car frame vertical columns. and Tsukuruma disposed between the frame member of Oite the car frame bottom beam to the car frame bottom beam both end portions, wound on said suspended vehicle through between the car Wakutate post back to the cab side wall An emergency stop device having a horseshoe-shaped spring disposed at the intersection of the main rope, the car frame vertical column and the car frame lower beam, and an emergency stop operating lever for moving a plate of the emergency stop device. The car frame vertical pillar has a vertically long hole, and the horseshoe spring has the vertically long hole. The main rope is passed through a space between the inside of the horseshoe-shaped spring and the rear surface of the vertical column of the car frame, and the emergency stop operating lever has a substantially U-shape in plan view, and the car It is arranged between the frame members of the frame lower beam, and is supported on each of the pair of frame members by an operation shaft divided at the center .

Oite to bag Tsukuruma mounting apparatus according to the present invention, it is unnecessary to dedicated Tsukuruma mounting beam, the pit depth can be made shallower, and can be obtained conventionally inexpensively lightened car There is an effect.

Embodiment 1 FIG.
1 to 3 show a first embodiment of the present invention. FIG. 1 is a plan view of an elevator car from above a hoistway, FIG. 2 is a front view, and FIG. 3 is an enlarged perspective view of a main part. It is.
Here, an embodiment relating to a 2: 1 roping lift elevator will be described. Guide rails 1 are vertically attached to both side walls of a hoistway (not shown), and a car frame is disposed between the guide rails 1 via a guide shoe 2 so as to be lifted and lowered. The car is installed with a car supported from below.

The car frame is composed of two car frame vertical columns 3, a car frame upper beam 4, and a car frame lower beam 5 as main elements. The car frame vertical column 3 has a U-shaped cross section, and the recesses are formed on the left and right sides of the recesses through the guide shoes 2 provided opposite to the guide rails 1. Opposed to the guide rail 1 is arranged to be movable up and down.
The car frame upper beam 4 is a pair of frame members having a U-shaped cross section, and the left and right cars are arranged so that the concave portions of the car frame are directed outward and the upper part of the car frame vertical column 3 is sandwiched from the front and rear. It is passed between the frame vertical pillars 3. Similarly, the car frame lower beam 5 is also a pair of frame members having a U-shaped cross section, and the left and right sides of the car frame vertical column 3 are sandwiched between the front and rear sides with the concave portions facing outward. At this time, the pair of frame members constituting the car frame lower beam 5 is a height dimension of the guide shoe 2 provided in the car frame vertical column 3. Only this is clamped at a position above the lower end of the car frame vertical column 3. By adopting such a structure, the frame material pair constituting the car frame upper beam 4 and the frame material pair constituting the car frame lower beam 5 have a gap corresponding to the width of the car frame vertical column 3. Will be placed. At this time, the frame material pairs constituting the car frame upper beam 4 are locked by the connecting material 4a.
In the car frame vertical column 3, an early emergency stop device 7 including a pressing body 7 a and an emergency stop roller 7 b is positioned at an intersection with the car frame lower beam 5 in the recessed portion of the car frame vertical column 3. The left and right emergency stop devices 7 are connected to each other by an emergency stop operating lever 8 and a connecting shaft 9a so that the built-in emergency stop roller 7b responds. A lifting rod 8a is pivotally attached to one of the emergency stop operating levers 8, and the connecting shaft 9a is rotated by bearing frames 8b provided on the left and right sides of the car frame lower beam 5. It is pivotally supported. A shock absorber 10 is provided at the center of a pit floor (not shown) at the lowermost part of the hoistway, and a shock absorber 10 is disposed at a position corresponding to the shock absorber 10 at the lower center of the car frame lower beam 5. An instrument plate 11 is provided.

  The car is mounted on a car room 12, a car door 13 provided on the front surface of the car room 12 so as to be freely opened and closed, a car floor 14 attached to the lower part of the car room 12, and a lower front part of the car room. The car sill 15 is configured as a main element, and the car floor 14 is supported by the car frame lower beam 5 via a floor support frame 5a and a vibration isolating rubber 5b. At this time, the depth direction of the car room 12 and the longitudinal direction of the car frame lower beam 5 are orthogonal to each other, and the center of gravity of the car is the length of the pair of frame members constituting the car frame lower beam 5. It is arranged so that it is on the direction center line.

By making the width dimension of the car room 12 smaller than the internal width dimension of the car frame, the car room 12 side walls and the car floor 14 both side walls and the left and right car frame vertical pillars 3 Is provided with a gap.
Suspension wheels 16 are rotatably mounted on the left and right sides of the car frame lower beam 5, so that the car frame lower beam 5 is also used as a conventional suspension car mounting beam. The main rope 17 passes between the frame material pair constituting the car frame upper beam 4 from above vertically, and then passes through the gap between the car chamber 12 side wall and the car floor 14 side wall and the car frame vertical column 3. After passing between a pair of frame members constituting the car frame lower beam 5, it is wound around the left and right suspension wheels 16 that are pivotally attached to the car frame lower beam 5, and the direction is changed. Are passed in the reverse order, that is, from below, between the pair of frame members constituting the car frame lower beam 5 and through the gap between the car room 12 side wall and the car floor 14 side wall and the car frame vertical column 3. The car frame upper beam 4 is routed between a pair of frame members.

  In the elevator car suspension vehicle mounting apparatus configured as described above, a dedicated suspension vehicle mounting beam is not required, the pit depth can be reduced, and a lighter passenger car can be obtained at a lower cost than before. be able to. In addition, the center of gravity of the car, the support point where the guide rail supports the car, and the hanging point where the main rope suspends the car match, so there is no uneven load and wear of the guide rail and guide shoe is suppressed. In addition, the moment of inertia applied to the suspended vehicle when the emergency stop device is activated can be minimized. Further, since the pair of guide rails are arranged in the same plane perpendicular to the depth direction, the guide rail and the guide shoe are not easily disconnected from each other, and the guide rail does not need to be detached.

Embodiment 2. FIG.
4 to 6 show a second embodiment of the present invention. FIG. 4 is an enlarged perspective view of a main part, FIG. 5 is a front view of an emergency stop part, and FIG. 6 is a cut surface AA of FIG. FIG. 4 to 6, the same reference numerals as those in FIGS. 1 to 3 denote the same or corresponding parts, and the description thereof is omitted.
Instead of the early emergency stop device used as the emergency stop device 7 in the first embodiment, in the second embodiment described here, a progressive emergency stop device mainly used in a high-speed elevator is used. Further, the roping method is a 2: 1 roping up type as in the first embodiment.

The progressive emergency stop device 7 includes a horseshoe-shaped spring 7c, a pressing body 7a mounted on inner walls of both ends of the horseshoe-shaped spring 7c, a guide surface of the guide rail 1 having a wedge shape and a wedge-shaped pointed upward. It is comprised from the plating 7d each arrange | positioned between the inclined surfaces of the said press body 7a, and the roller 7e each arrange | positioned between the inclined surface of the said press body 7a, and the inclined surface of the said plating 7d. Yes.
The lower end of each of the platings 7d is connected via the emergency stop operating lever 8 by the end of the emergency stop operating lever 8 being pivotally attached. It moves up and down freely within the safety device 7. An operating shaft 8 c is provided on the other side of the emergency stop operating lever 8, and the operating shaft 8 c is pivotally supported on the car frame lower beam 5. At this time, the operating shaft 8c does not penetrate the emergency stop operating lever 8, but is divided into both outer walls of the emergency stop operating lever 8, thereby avoiding interference with the suspension wheel 16 and the above. The emergency stop operating lever 8 is disposed in the gap between the pair of frame members constituting the car frame lower beam 5. Further, in order to cause the emergency stop operating levers 8 on the left and right to respond to each other, one end portions of the left and right operating shafts 8c are connected to each other via a connecting rod 9b.

The horseshoe-shaped spring 7c is disposed through two vertical long holes 3a drilled in the car frame vertical column 3, and a gap is formed between the inside of the horseshoe-shaped spring 7c and the rear surface of the car frame vertical column 3. Forming. As in the first embodiment, the main rope 17 is formed between the pair of frame members constituting the car frame upper beam 4, the side wall of the car room 12, the side wall of the car floor 14, and the car frame vertical column 3. In addition to passing through the gap and the pair of frame members constituting the car frame lower beam 5, the gap is routed through the gap between the inner side of the horseshoe-shaped spring 7c and the rear surface of the car frame vertical column 3.
The elevator car suspension vehicle mounting apparatus configured as described above can achieve the same effects as those of the first embodiment.

Embodiment 3 FIG.
7 and 8 show a third embodiment of the present invention. FIG. 7 is a front view, and FIG. 8 is an enlarged perspective view of a main part. 7 and 8, the same reference numerals as those in FIGS. 1 to 3 denote the same or corresponding parts, and the description thereof is omitted.
The first embodiment and the second embodiment are examples in which the present invention is applied to a car lift mounting apparatus for a lift-type elevator, but the third embodiment described here is a 1: 1 roping lift. The present invention is applied to a tie-down device for a type elevator.

  Reference numeral 18 denotes an L-shaped rope clamp having a cross section, which is fixed to the back surface of the car frame vertical column 3. As in the first and second embodiments, the main rope 17 is formed between the pair of frame members constituting the car frame upper beam 4, the side wall of the car chamber 12, and the car frame vertical column 3. After passing through the gap, the rope is attached to the clasp 18 via a rope shackle 19. At this time, the other end of the rope shackle 19 to which the main rope 17 is connected at one end thereof penetrates through the through hole 18a formed by the number of the main ropes 17 in the rope clasp 18, and further, a coil spring 19a. And, after passing through the spring seat 19b, it is fastened by the nut 19c to be attached to the rope clamp 18.

  In the elevator pawl device configured as described above, a dedicated pawl mounting beam is not required, the pit depth can be reduced, and a lighter car can be obtained at a lower cost than before. be able to.

It is a top view which shows Embodiment 1 of this invention. It is a front view which shows Embodiment 1 of this invention. It is the perspective view which expanded the principal part which shows Embodiment 1 of this invention. It is the perspective view which expanded the principal part which shows Embodiment 2 of this invention. It is a front view of the emergency stop part which shows Embodiment 2 of this invention. It is sectional drawing of the emergency stop part which shows Embodiment 2 of this invention. It is a front view which shows Embodiment 3 of this invention. It is the perspective view which expanded the principal part which shows Embodiment 3 of this invention. It is a front view which shows the prior art example of the leash stop apparatus of an elevator.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Guide rail 2 Guide shoe 3 Car frame vertical column 3a Vertically long hole 4 Car frame upper beam 4a Connecting material 5 Car frame lower beam 5a Floor support frame 5b Anti-vibration rubber 7 Emergency stop device 7a Press body 7b Emergency stop roller 7c Horseshoe spring 7d Plating 7e Roller 8 Emergency stop lever 8a Lifting rod 8b Bearing frame 8c Actuating shaft 9a Connecting shaft 9b Connecting rod 10 Shock absorber 11 Buffer pad 12 Car room 13 Car door 14 Car floor 15 Car sill 16 Suspension wheel 17 Main Rope 18 Tightening bracket 18a Through hole 19 Rope shackle 19a Coil spring 19b Spring seat 19c Nut 20 Tightening mounting beam

Claims (5)

Guide rails are vertically mounted on both side walls of the hoistway, and a car frame is disposed between the guide rails via a guide shoe so as to be movable up and down, and a car is installed in the car frame. In the lift type elevator,
A car frame vertical column,
The guide shoe provided on the vertical column of the car frame so as to face the guide rail;
A car frame upper beam spanned between the upper parts of the car frame vertical columns;
A car frame lower beam composed of a pair of frame members provided between the lower parts of the car frame vertical columns and arranged between the lower parts of the car frame vertical columns ;
And Tsukuruma disposed between the frame member of Oite the car frame bottom beam to the car frame bottom beam end portions,
A main rope wound around the suspension car through the back of the car frame vertical column and the side wall of the car room;
An emergency stop device disposed at the intersection of the car frame vertical column and the car frame lower beam, and having a horseshoe spring,
An emergency stop operating lever for moving a plate of the emergency stop device,
A vertical hole is drilled in the car frame vertical column,
The horseshoe-shaped spring is disposed through the longitudinal hole,
The main rope is passed through the gap between the inside of the horseshoe-shaped spring and the back of the car frame vertical column,
The emergency stop operating lever has a substantially U-shape in plan view, is disposed between the frame members of the car frame lower beam, and is pivotally supported on each of the pair of frame members by an operating shaft divided at the center. A car suspension vehicle mounting device characterized by being provided .   The car suspension vehicle mounting device according to claim 1, wherein the suspension vehicle is arranged at both ends on a car frame lower beam center line.   The car suspension mounting apparatus according to any one of claims 1 and 2, wherein a center of gravity of the car room is arranged on a center line of the car frame lower beam. The guide shoe and the safety device are arranged on the side of the suspension wheel, and the guide shoe is arranged below the safety device at the lower part of the vertical column of the car frame. Item 4. The car suspension vehicle mounting device according to any one of items 3 to 4 . The car suspension vehicle mounting device according to any one of claims 1 to 4 , wherein the roping method is a 2: 1 roping method .

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