JP2002128415A - Method and device for hoisting driving machine to height position in the vicinity of ceiling face in elevator shaft - Google Patents

Abstract

PROBLEM TO BE SOLVED: To allow a driving machine to be hoisted without difficulty upto a height position very near to a height position of a ceiling face of an elevator shaft. SOLUTION: The driving machine 10 is suspended in a transverse member 5 for suspension of which the one end side is pivoted (13) in the height position in the vicinity of the ceiling face 12 of the elevator shaft 11, a downward protruded part 6 provided on the other end side of the member 5 is hoisted up by a chain block 3 to rotation-displace the other end side of the member 5 upwards around the pivotal part 13 as the center, and the driving machine 10 is thereby hoisted up.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method and an apparatus for lifting a driving machine to a height near a ceiling surface of an elevator shaft.

[0002]

2. Description of the Related Art In a type of elevator in which a driving machine including a hoist is installed at a height near a ceiling surface of an elevator shaft, the driving machine is installed by using a chain block 51 as shown in FIG. This is the ceiling surface 53 of the hoistway 52
And the drive unit 54 is suspended from the chain block 51 and lifted to a height near the ceiling surface 53.

[0003]

However, in the above-described lifting method, when the chain block 51 is attached to the ceiling surface 53, the chain block 51 itself occupies a dimensional range of, for example, about 400 mm below the ceiling surface 53. Therefore, the height of the upper end of the driving device 54 cannot be raised to a higher position, and the distance between the height of the ceiling surface 53 and the upper end of the driving device 54 is, for example, about 230 mm. In the case where the size must be short, there is a problem that a driving machine cannot be installed.

SUMMARY OF THE INVENTION In view of the above-mentioned conventional problems, the present invention provides an elevator hoistway ceiling height in which a driving machine can be easily lifted to a height very close to the hoistway ceiling height. It is an object to provide a method and an apparatus for lifting a driving machine to a position.

[0005]

An object of the present invention is to suspend a drive unit on a horizontal member for suspension having one end pivotally mounted at a height near the ceiling surface of a hoistway, and to attach the driving device to the other end of the horizontal member. Lifting the provided lower protruding portion and rotating and displacing the other end of the laterally oriented material upward around the pivot portion, lifting the drive unit to a height near the ceiling surface of the elevator hoistway, Is solved by the method of lifting the driving machine.

In this lifting method, the downward projecting portion provided on the other end of the horizontal member pivotally connected at one end is lifted, so that the horizontal member is very close to the hoistway ceiling surface height position. Position, so that the drive suspended on this crosspiece can be lifted very close to the hoistway ceiling level.

In addition, since the horizontal member is lifted by pivotally connecting one end thereof and rotating and displacing the other end upward, the driving machine can be lifted with a simple mechanism, safely and easily. .

Another object of the present invention is to provide a horizontal member for lifting a drive having a pivotally connecting portion at one end, a lower protruding portion provided at the other end of the horizontal member, and a lower protruding portion connected to the lower protruding portion. Lifting means for lifting the lower protruding portion and rotating and displacing the other end of the transverse member upward around the pivotally connected portion to lift the drive. A similar solution can be obtained by using a lifting device of the driving machine to a position near the height to perform lifting.

In this lifting device, when a stand is provided on the machine beam and one end of the horizontal member is pivotally mounted, the height of the stand is set so that the pivotal height of the horizontal member is set. The height position can be located at or near the hoistway ceiling surface, and the driving device can be lifted to a position very close to the hoistway ceiling surface height position. Moreover, by using the stand, the machine beam that is firmly installed in strength can be used as the base of the lifting device, and the load of the driving device can be supported by the machine beam, and the driving device can be lifted safely.

[0010] Basically, the above-mentioned problem is caused by suspending a load on a horizontal member for suspension having one end pivotally attached thereto, and lifting a lower projecting portion provided on the other end of the horizontal member to lift the horizontal member. A method of lifting a load, wherein the load is lifted by rotating and displacing the other end side upward about the pivot portion.
A horizontal material for lifting a load having a pivotally connected portion at one end, a lower protruding portion provided at the other end of the horizontal material, and a lower protruding portion connected to the lower protruding portion, and Lifting means for lifting a load by rotating and displacing the other end of the material upward around the pivotally connected portion is provided.

[0011]

Next, embodiments of the present invention will be described with reference to the drawings. In the lifting device 1 of the embodiment shown in FIGS. 1 and 2, reference numeral 2 denotes a lifting jig, and reference numeral 3 denotes a chain block as lifting means.

The lifting jig 2 includes stands 4, 4, racks 5, 5 as transverse members, and a downward projecting portion 6.

The stand 4 is made of steel or the like.
Two pairs are spaced apart from each other, and joints 7, 7 provided at their lower ends are fixed to the machine beam 8 with bolts or the like, and are erected on the machine beam 8. Brackets 9, 9 are provided at the upper ends of the stands 4, 4, respectively.
It can be fixed to a bracket on the top of a car guide rail (not shown) extending above the machine beam 8 by means of a gilt or the like. The height of the stand 4 may be determined in consideration of the height position at which the driver 10 is to be lifted. By setting the height position of the upper end of the stand 4 close to the height position of the ceiling surface 12 of the elevator hoistway 11, the driving machine 10 can be installed at a height position very close to the ceiling surface 12. become.

The racks 5 are made of steel or the like, like the stands 4 and 4, and are provided in pairs in parallel at a distance from each other, and one end thereof is pivotally connected to the upper end of the stands 4 and 13. The other end of each of the racks 5, 5 can be vertically displaced about the pivots 13, 13.

A lower protruding portion 6 is provided at the other end of each of the racks 5 and 5. The lower protruding portion 6 is composed of a pair of hanging members 6a, 6a made of a steel material or the like whose upper ends are rigidly connected to the other ends of the racks 5, 5, and a steel material connecting the lower ends of the hanging materials 6a, 6a. It is composed of a horizontal connecting member 6b, and a chain engaging portion 14 such as an eye bolt for hanging the chain 3a from the chain block 3 is provided at a central portion in the longitudinal direction of the connecting member 6b. Incidentally, reference numerals 16 and 15 denote diagonal members, which reinforce the connecting portions between the racks 5, 5 and the hanging members 6a, 6a, and reinforce the lower protruding portions 6 themselves.

Chain block 3 as lifting means
Is mounted on the ceiling surface 12 of the elevator shaft 11.

The installation of the driving machine 10 is performed by
And can be performed as follows. That is, as preparation, as shown in FIG. 1A, the stands 4 and 4 are erected on the machine beam 8 and the upper ends of the stands 4 and 4 are fixed to the top rail bracket. 5 is passed through holes 18 on the right and left sides of a driving device mounting jig 17 mounted on the driving device 10 to suspend the driving device 10 at an intermediate portion of the racks 5 and 5 in the longitudinal direction. A chain 3a pivotally attached to the upper ends of the stands 4 and 4 and attached from the chain block 3 attached to the ceiling surface 12 is hooked on the hook 14 of the connecting member 6b of the downward projecting portion 6, and the tension side of the chain block 3 is pulled. Is brought out through an entrance (not shown) at the top of the elevator. Note that these preparations may be performed through the entrance at the top of the elevator or the like.

Thereafter, as shown in FIGS. 1A and 1B, the chain 3b of the chain block 3 is pulled,
The connecting members 6b and the hanging members 6a, 6a of the lower protruding portion 6 are lifted, and thereby the racks 5, 5 are connected to the end pivot portions 1.
The driving machine 10 is lifted toward the ceiling surface 12 side of the hoistway 11 by being rotationally displaced upward around the centers 3 and 13. It is not the racks 5 and 5 that are lifted by the chain block 3 but the lower protruding portions 6, so even if the height of the chain block 3 is somewhat large, for example, 400 mm or more, the chain block 3 Racks 5 and 5 are mounted on the ceiling surface 1 of the hoistway 11 regardless of the height
2 can be raised to a position in the vicinity of
Can be lifted to a height position very close to the height position of the ceiling surface 12 of the hoistway 11.

Thereafter, the drive unit 10 is moved to a predetermined installation position along the racks 5 and 5, and the drive unit 10 is installed at a predetermined height position.

Incidentally, according to the lifting method of the present invention, the space between the height of the ceiling surface 12 and the height of the upper end of the driving machine 10 can be set to a very short dimension of, for example, 229 mm. This makes it possible to install an elevator that cannot be installed unless the distance between the height position of the ceiling surface 12 and the height position of the upper end of the driving device 10 can be reduced to about 230 mm. Can be.

Although the embodiment of the present invention has been described above, the present invention is not limited to this, and various modifications can be made without departing from the spirit of the invention. For example, in the above embodiment, the case where the stands 4 and 4 are used is shown, but the stand is omitted, and one end of the horizontal member 5 is connected to, for example,
The car guide rails extending above the machine beam may be lifted by being pivotally attached to the upper end and other parts of the car guide rail. When a stand is used, a horizontal member having a structure in which the stand portion is rigidly connected to one end of the horizontal member body is used, and one end of the horizontal member, that is, the lower end of the stand portion is pivotally attached to a machine beam or the like. Alternatively, the drive may be lifted by rotating and displacing the main body portion of the horizontal member upward about the lower end side of the stand portion of the horizontal member. In the above embodiment, the chain from the chain block is connected to the lower end position of the lower protruding portion. However, the chain may be connected to the intermediate height position of the lower protruding portion. Further, various types of transverse members, downward projecting portions, and stands may be used, and the lifting means may be other than a chain block. Further, the present invention can be effectively used as a method or a device for lifting a driving machine in the case where the driving machine for an elevator is installed near the hoistway ceiling surface, but is not limited to this, and can be used near the ceiling surface. Needless to say, the method can be effectively used as a method and a device for lifting various loads.

[0022]

The present invention is as described above, so that the driving machine can be easily lifted to a height very close to the height of the ceiling of the elevator hoistway. And the like, the range of application of an elevator installed at a height near the ceiling surface can be expanded.

[Brief description of the drawings]

FIG. 1 shows a lifting method according to an embodiment.
Is a side view showing the installed state of the lifting device, and FIG. 2B is a side view showing the suspended state.

FIG. 2 is a perspective view of a lifting jig.

FIG. 3 is a front view showing a conventional lifting method.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 ... Lifting device 3 ... Chain block (lifting means) 4 ... Stand 5 ... Rack (horizontal material) 6 ... Downward projecting part 8 ... Machine beam 10 ... Driving machine 11 ... Elevator hoistway 12 ... Ceiling surface 13 ... Pivot part

Claims (5)

[Claims] 1. A driving device is suspended on a horizontal member for suspension having one end pivotally mounted at a height position near a hoistway ceiling surface, and a lower protruding portion provided on the other end of the horizontal member is lifted. A method of lifting a driving device to a height near a ceiling surface of an elevator shaft, wherein the driving device is lifted by rotating and displacing the other end of the horizontal member upward about the pivot portion. 2. A horizontal member for lifting a drive having a pivotally connected portion at one end, a lower protruding portion provided at the other end of the horizontal member, and a lower protruding portion connected to the lower protruding portion. Lifting means for lifting the drive device by rotating the other end side of the horizontal member upwardly around the pivotally connected portion to lift the drive device. Lifting device for driving machine. 3. The apparatus for lifting a drive machine to a height near a ceiling surface of an elevator shaft according to claim 2, further comprising a stand which is erected on the machine beam and to which one end of the transverse member is pivoted. 4. A load is hung on a horizontal member for suspension having one end pivotally attached thereto, and a lower protruding portion provided on the other end of the horizontal member is lifted to connect the other end of the horizontal member with the pivotal attachment. A method of lifting a load, wherein the load is lifted by being rotationally displaced upward to the center. 5. A horizontal member for lifting a load having a pivotally connected portion at one end, a lower protruding portion provided at the other end of the horizontal member, and a lower protruding portion connected to the lower protruding portion. Lifting means for lifting the load by lifting and lifting the load by rotating and displacing the other end of the horizontal member upwardly around the pivotally connected portion.