JP2013091558A - Elevator device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To obtain a guide rail device which can elevate an elevating body without damaging the guide rail even if a load is applied to the guide rail in a direction other than in one horizontal direction.SOLUTION: An elevator device includes: a T-shaped cross-sectional car guide rail 5 which has a first car guide rail part 5A and a second car guide rail part 5B that is disposed separate from the first car guide rail part 5A in an axis of thereof, and which guides the elevation of a car and comprises a base and an upright part that is upright from the base; and a joint 11 which is provided between the first car guide rail part 5A and the second car guide rail part 5B. The joint 11 connects the first car guide rail part 5A and the second car guide rail part 5B so that they are relatively turnable and is bendable in any direction at the center of the axis of the car guide rail 5.

Description

  The present invention relates to an elevator rail device applied to a building having a vibration isolation structure, for example.

Conventionally, in a building divided through a vibration isolator between intermediate floors, flexible struts are arranged at the four corners of the elevator hoistway, and adjacent flexible struts are connected by a horizontal frame. An elevator rail device in which a guide rail is fixed to a horizontal frame via a rail bracket is known (see Patent Document 1).
In this elevator rail device, when rolling occurs on the upper and lower floors due to the earthquake, the flexible struts are deformed, and the guide rails are also elastic in the horizontal direction in conjunction with the flexible struts. Although deformed, the amount of deformation exceeds the elastic limit and the guide rail may be damaged.

There has also been proposed an elevator rail device provided with means for reducing breakage of the guide rail due to such horizontal displacement of the guide rail (see Patent Document 2).
In this elevator rail device, the guide rail is divided into a general level rail and a vibration isolation level rail, the general level rail is fixed at a level other than the level isolation level, and the vibration isolation level rail is isolated at its upper end. The lower layer of the upper layer of the hierarchy is rotatably supported by two orthogonal pins on the lower layer of the vibration isolation layer, and the vibration isolation layer rail is configured to be extendable.

Japanese Patent Laid-Open No. 10-157943 JP 11-29275 A

  However, the actual situation is that we do not know in which direction the earthquake shakes, and the above-mentioned elevator rail device cannot cope with the case where the vibration isolation layer rail is shaken in a direction other than one horizontal direction. There was a problem that the guide rail was damaged and the car could not be lifted or lowered.

  An object of the present invention is to solve such a problem, and even if a load in a direction other than one horizontal direction is applied to the guide rail, the guide rail is not easily damaged, and the lifting body is raised and lowered. An object is to obtain a guide rail device that can be used.

The elevator rail device according to the present invention includes a first guide rail portion and a second guide rail portion spaced apart on an axis of the first guide rail portion, and guides the lifting and lowering of the lifting body. , A guide rail having a T-shaped cross section composed of a base and an upright part standing upright from the base,
A joint body provided between the first guide rail portion and the second guide rail portion;
The joint body connects the first guide rail portion and the second guide rail portion so as to be relatively rotatable and bendable in an arbitrary direction around the axis of the guide rail. .

  According to the elevator rail device of the present invention, when an arbitrary load in the vertical direction with respect to the axis and a bending moment about the axis are applied to the guide rail, the guide rail is displaced in that direction. Therefore, it is prevented from receiving an excessive load, and for example, breakage of the guide rail due to an earthquake can be reduced.

It is explanatory drawing of the building where the elevator rail apparatus of Embodiment 1 of this invention is attached. FIG. 2 is a diagram when the building of FIG. 1 is deformed by an earthquake. FIG. 3 is a plan view showing a hoistway of the building of FIG. It is a figure when the elevator rail apparatus of Embodiment 1 of this invention is installed in the building of FIG. It is a figure when the elevator rail apparatus of FIG. 4 deform | transforms by an earthquake. It is an enlarged view of the site | part of the arrow A of FIG. It is an arrow view along the VII-VII line of FIG. It is an arrow view along the VIII-VIII line of FIG. It is arrow sectional drawing along the IX-IX line of FIG. It is arrow sectional drawing along the XX line of FIG. It is arrow sectional drawing along the XI-XI line of FIG. It is a perspective view which shows the joint body and twist control body of FIG. It is a perspective view which shows the linear direction guide body of FIG. It is a disassembled perspective view of FIG. FIG. 14 is an exploded perspective view of FIG. 13. FIGS. 16A and 16B are views when the joint body and the twist regulating body of FIG. 6 are deformed. 17A and 17B are diagrams when the joint body of FIG. 7 is deformed. 18 (a) and 18 (b) are views when the twist restricting body of FIG. 8 is deformed. It is a top view of a hoistway. It is a principal part perspective view of FIG. It is a figure which shows the mode of the twist of the guide rail for cage | baskets when not providing the twist control body.

Hereinafter, embodiments of the present invention will be described with reference to the drawings. In the drawings, the same or equivalent members and parts will be described with the same reference numerals.
Embodiment 1 FIG.
FIG. 1 is an explanatory diagram of a building where an elevator rail device according to an embodiment of the present invention is installed, FIG. 2 is a diagram when the building of FIG. 1 is deformed by an earthquake, and FIG. 3 is a hoistway of FIG. FIG.
This building is separated between the intermediate floors via the vibration isolator 1. The vibration isolator 1 is made of, for example, laminated rubber. During an earthquake, as shown in FIG. 2, relative horizontal movement occurs above and below the level of the vibration isolator 1.
In this building, as shown in FIG. 3, an elevator apparatus is installed.
The elevator apparatus is connected to a car 3 that moves up and down in the hoistway 2, a weight 4 that is connected to the car 3 via a rope (not shown), and moves up and down in conjunction with the raising and lowering of the car 3, A pair of car guide rails 5 for guiding the car 3 and extending vertically along the same wall surface of the hoistway 2 are provided so as to guide the weight 4. A pair of weight guide rails 6 are provided.

Flexible struts 7 extending in the vertical direction are provided at the four corners of the hoistway 2 around the car guide rail 5 and the weight guide rail 6. The flexible strut 7 is a normal steel material, and an upper end portion thereof is fixed to a level (32 floors) one floor higher than the level of the vibration isolator 1. The lower end of the flexible column 7 is fixed to a level (30th floor) that is one floor below the level of the vibration isolator 1.
Adjacent flexible struts 7 are connected by a horizontal frame 8 at the upper and lower parts of the vibration isolation floor (31st floor).

FIG. 4 is a diagram in which the elevator rail device of the first embodiment is installed in the building of FIG.
In this elevator rail device, a car guide rail 5 is fixed to the upper and lower horizontal frames 8 via a car bracket 9 at an intermediate portion. In addition, weight guide rails 6 are fixed to the upper and lower horizontal frames 8 through weight brackets 10 at intermediate portions.
Therefore, at the time of an earthquake, as shown in FIG. 5, the car rail 5 and the weight rail 6 are bent and deformed according to the deformation of the flexible column 7.

6 is an enlarged view of a part indicated by an arrow A in FIG. 4, FIG. 7 is an arrow view along the line VII-VII in FIG. 6, FIG. 8 is an arrow view along the line VIII-VIII in FIG. Is a sectional view taken along line IX-IX in FIG. 7, FIG. 10 is a sectional view taken along line XX in FIG. 6, and FIG. 11 is a sectional view taken along line XI-XI in FIG. FIG. 12 is a perspective view showing the joint body 11 and the twist restricting body 12 in FIG. 6, and FIG. 13 is a perspective view showing a connecting portion between the first car guide rail portion 5A and the third car rail portion 5C. 14 is an exploded perspective view of FIG. 12, and FIG. 15 is an exploded perspective view of FIG.
In the elevator rail device of the present invention, the car guide rail part 5 having a T-shaped cross section includes the first car guide rail part 5A, the second car guide rail part 5B, and the third car guide rail part 5C. have.
One end portion of the first car guide rail portion 5A is freely connected to the second car guide rail portion 5B via the joint body 11. In addition, one end of the first car guide rail portion 5A is connected to the second car guide rail portion 5B via a twist restricting body 12 that restricts relative twist.
The first car guide rail portion 5A is connected to the third car rail portion 5C and the linear guide body 40 so as to be relatively movable in the axial direction.

  Tapered surfaces 25A and 25B taper toward the tip end portions of the end portion of the upright portion 21A of the first car guide rail portion 5A and the end portion of the upright portion 21B of the second car guide rail portion 5B, respectively. Through holes 26A and 26B that are formed and orthogonal to the axial direction are formed. Further, spherical portions 27A and 27B are formed on the front end surfaces of the upright portions 21A and 21B.

  The joint body 11 has a through-hole 14a and a seating surface 14b, a ball 14 in surface contact with the spherical surface portions 27A and 27B, and a pair of bolts 15 facing each other with a spherical head 15a in surface contact with the seating surface 14b. And a washer 16 having a curved head 15a side, and a nut 17 screwed onto the end of the bolt 15 via the washer 16.

  The torsion restricting body 12 overlaps the restriction rod 18 whose tip is screwed to the sphere 14, and the base 20A of the first car guide rail 5A and the base 20B of the second car guide rail 5B. The guide plates 19A and 19B having the long holes 19 are fixed.

The linear guide body 40 is U-shaped in cross section, and extends axially between the end of the base 20A of the first car guide rail 5A and the end of the base 20C of the third car guide rail 5C. A sliding piece 22 provided slidably, a guide hole 23 formed in the upright part 21A of the first car guide rail part 5A, and an upright part 21C of the third car guide rail part 5C. And a protrusion 24 that slides in the guide hole 23.
Note that the protruding portion 24 may be formed in the upright portion 21A, and the guide hole 23 may be formed in the upright portion 21C.

  In the above description, the car guide rail 5 that guides the raising and lowering of the car 3 that is the lifting body has been described as the elevator rail apparatus. However, the elevator rail apparatus according to the present invention lifts and lowers the weight 4 that is the lifting body. The guide rail 6 for weights to be guided is also applied, and the configuration is the same as that of the guide rail 5 for cars.

In the elevator rail device according to this embodiment, when an earthquake shakes in the building, the flexible support 7 is deformed as shown in FIG. 5 and the car is fixed to the horizontal frame 8 via the car bracket 9. The weight guide rail 6 fixed via the weight guide rail 5 and the weight bracket 10 is also deformed.
16 (a) and 16 (b) are views when a portion of the car guide rail 5 of the elevator rail device of FIG. 6 is deformed, and FIGS. 17 (a) and 17 (b) are views of the elevator rail device of FIG. FIGS. 18A and 18B are views when the portion of the car guide rail 5 is deformed, and FIGS. 18A and 18B are views when the portion of the car guide rail 5 of the elevator rail device of FIG. 8 is deformed.

As can be seen from these drawings, even when the flexible support 7 on the vibration isolation floor is deformed, the car guide rail 5 has the first car guide rail part 5A and the second car guide rail part 5B. It can be rotated around the joint body 11 provided between them and bends in an arbitrary direction.
Accordingly, it is possible to flexibly cope with a load in any direction with respect to the car guide rail 5, and it is possible to prevent an excessive load from being applied to the car guide rail 5 and to damage the car guide rail 5 due to an earthquake. Can be reduced.

Further, the end of the upright portion 21A of the first car guide rail portion 5A and the end of the upright portion 21B of the second car guide rail portion 5B are respectively tapered taper surfaces 25A toward the tip. 25B is formed.
Therefore, for example, when an earthquake occurs while the car 3 is running and the car guide rail 5 is bent and deformed with the joint body 11 as a boundary, the car 3 is attached to the upper and lower sides of the car 3 as shown in FIGS. The guide shoe 29 fixed to the car frame 28 can smoothly move between the adjacent upright portions 21A and 21B, and the car 3 can continue running along the car guide rail 5 as it is.
Note that, instead of the tapered taper surfaces 25A and 25B, a tapered curved surface toward the joint body 11 may be used.

Further, a through hole 14a is formed in the ball 14 of the joint body 11 along the horizontal direction, and the first car guide rail part 5A and the second car guide rail part 5B have through holes 26A, 26B is formed.
Therefore, the bolt 15, the washer 16 and the nut 17 are used to connect the first car guide rail part 5 </ b> A and the second car guide rail part 5 </ b> B via the ball 14 to the through holes 14 a and 26 </ b> A. , 26B.
Further, by adjusting the nut 17, the surface pressure of the head 15 a of the bolt 15 against the seating surface 14 b of the ball 14 can be adjusted, and the bending strength at the joint body 11 of the car guide rail 5 can be adjusted.

When the twist restricting body 12 is not provided, depending on the deformation of the flexible column 7, the first car guide rail part 5A and the second car guide rail part 5B are as shown in FIG. The car guide rails 5 are twisted by rotating in opposite directions around the sphere 14.
On the other hand, in the elevator rail device of this embodiment, the car guide rail 5 has the twist restricting body 12 between the first car guide rail part 5A and the second car guide rail part 5B. Since it is provided, generation | occurrence | production of the twist of the guide rail 5 for cars can be suppressed.
Therefore, for example, even if an earthquake occurs while the car 3 is traveling, the torsional deformation of the car guide rail 5 around the ball 14 is suppressed, and the guide shoe 29 can be smoothly moved between the adjacent upright portions 21A and 21B. The car 3 can move, and the car 3 can continue traveling along the car guide rail 5 as it is.

  Further, the guide plate 19A of the first car guide rail portion 5A and the guide plate 19B of the second car guide rail portion 5B are overlapped, and interference in the direction along the surfaces of the guide plates 19A and 19B. Can be prevented.

Further, since the first car guide rail part 5A and the third car guide rail part 5C are connected via the linear guide body 40, the first car guide rail part 5A and the third car guide rail part 5C are connected to each other. It moves relatively along the axial direction with respect to the car guide rail portion 5C.
Accordingly, when a load is applied to the car guide rail 5 in the axial direction in conjunction with the deformation of the flexible column 7 on the isolation floor, the car guide rail 5 is connected to the first car guide rail portion 5A. Since it is guided by the linear guide body 40 and fluctuates with the third car guide rail portion 5C, it can flexibly cope with an axial load on the car guide rail 5 and guides the car. It is possible to prevent an excessive load from being applied to the rail 5, and to reduce damage to the car guide rail 5 due to an earthquake.

  In the above description, the operation and effect of the car guide rail 5 that guides the raising and lowering of the car 3 that is the lifting body as the elevator rail device has been described. However, the car guide rail 5 is also used for the weight guide rail 6. Of course, it is possible to obtain the same operations and effects as the above.

  Moreover, in the said embodiment, although it was a building which has the horizontal frame 8 which connected the adjacent flexible support | pillar 7, Comprising: Although the guide rail 5 for cage | baskets was fixed to this horizontal frame 8, it demonstrated this invention, It can also be applied to a structure having the vibration isolator 1 but without the flexible column 7 and the horizontal frame 8, and can also be applied to a building without the vibration isolator 1, the flexible column 7 and the horizontal frame 8. Can do.

  DESCRIPTION OF SYMBOLS 1 Isolator, 2 Hoistway, 3 Car, 4 Weight, 5 Car guide rail, 5A 1st car guide rail part, 5B 2nd car guide rail part, 5C 3rd car guide rail part , 6 Weight guide rail, 7 Flexible strut, 8 Horizontal frame, 9 Car bracket, 10 Weight bracket, 11 Joint body, 12 Torsion restricting body, 14 Ball, 14a Through hole, 14b Seat surface, 15 Bolt, 15a Head, 16 Washer, 17 Nut, 18 Regulator, 19A, 19B Guide plate, 20A, 20B, 20C Base, 21A, 21B, 21C Upright part, 22 Sliding piece, 23 Guide hole, 25A, 25B Tapered surface, 26A , 26B Through-hole, 27A, 27B Spherical surface part, 28 Car frame, 29 Guide shoe, 40 Linear guide.

Claims (11)

A first guide rail portion, a second guide rail portion spaced apart on the axis of the first guide rail portion, guides the lifting and lowering of the lifting body, and stands upright from the base portion and the base portion A guide rail having a T-shaped cross section, and
A joint body provided between the first guide rail portion and the second guide rail portion;
The joint body connects the first guide rail portion and the second guide rail portion so as to be relatively rotatable and bendable in an arbitrary direction around the axis of the guide rail. An elevator rail device characterized by that.   Between the first guide rail portion and the second guide rail portion, the rotation of the first guide rail portion and the second guide rail portion around the axis line is restricted, and the The elevator rail device according to claim 1, further comprising a torsion restricting body that restricts torsion of the guide rail. The first guide rail portion is connected to the third guide rail portion via a linear guide at the end opposite to the joint body,
3. The first guide rail portion and the third guide rail portion can be moved relative to each other along the same axis by the linear guide body. 4. Elevator rail device. The joint body includes a through-hole penetrating along a direction perpendicular to the axis, a hollow sphere having a seating surface on the inner surface, and a pair of bolts having a spherical head in surface contact with the seating surface. ,
The sphere is in surface contact with the spherical surface portions formed on the tip surface of the first guide rail portion and the tip surface of the second guide rail portion, respectively.
In each of the bolts, the head is in surface contact with the seating surface, and the end opposite to the head is at the end of each of the first guide rail and the second guide rail. The elevator rail device according to any one of claims 1 to 3, wherein the elevator rail device is fixed. The torsion restricting body includes a restriction rod having a tip fixed to the sphere, and a guide plate protruding in an axial direction from the ends of the first guide rail portion and the second guide rail portion. Prepared,
5. The elevator rail device according to claim 4, wherein a tip portion of the restriction rod is loosely inserted into a long hole formed in the guide plate.   The linear guide body is U-shaped in cross section, and is slidably provided on both edge portions of the base portion of the first guide rail portion and both edge portions of the base portion of the third guide rail portion. A sliding hole, a guide hole formed in one of the upright portion of the first guide rail portion and the upright portion of the third guide rail portion, the upright portion of the first guide rail portion, and the first guide rail portion. The elevator rail device according to claim 3, wherein the elevator rail device is formed of a projecting portion that is formed on the other of the upright portions of the guide rail portion and slides in the guide hole.   A taper surface toward the joint body is formed at each end of the upright portion of the first guide rail portion and the upright portion of the second guide rail portion on the joint body side. The elevator rail device according to any one of claims 1 to 6. The building is separated through an isolation floor having an isolation body between intermediate levels, and the guide rail extends along a hoistway,
The elevator rail device according to any one of claims 1 to 7, wherein the joint body is provided at a portion of the guide rail on the vibration isolation floor. The building having flexible struts that are respectively fixed at the upper and lower layers of the isolation floor and provided at the four corners of the hoistway, and a horizontal frame that connects the adjacent flexible struts. A thing,
The elevator rail device according to claim 8, wherein the guide rail is fixed to the horizontal frame.   The elevator rail device according to any one of claims 1 to 9, wherein the elevating body is a car, and the guide rail is a guide rail for a car.   The elevator rail device according to any one of claims 1 to 9, wherein the elevating body is a counterweight, and the guide rail is a counterweight guide rail.

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