JPS5929021Y2 - hydraulic elevator - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a hydraulic elevator, and more particularly to an improvement in a raised hydraulic elevator.

FIG. 1 is a front view of a conventional lift type hydraulic elevator, and FIG. 2 is a schematic plan view taken in the direction of line 1--2 in FIG.

As shown in the figure, the lift type hydraulic elevator has a cage 14 placed on a beam 12 with pulleys 11 pivotally attached to both ends thereof via a cage lower beam 13, and a rope 15 wound around the pulley 11.
By moving the plunger 17 up and down with a hydraulic jack 16, it is pulled up and down via a plunger upper pulley 18, and the basket 14 is moved up and down.

In this case, the rope 15 has one end attached to the beam 1 above the hoistway.
9, the other end is attached to the cylinder stand 20, 2:
4 rovings, and the basket 14 is made to move up and down at twice the speed at which the plunger 17 moves up and down.

In a conventional lifting type hydraulic elevator, one or two beams 12 are fixed diagonally to the cage lower beam 13,
Pulleys 11 are pivotally attached to both ends of this beam 120.

For this reason, the jack 16 and the beam 1 are
If the installation position in step 2 is incorrect, the cage will have to be pulled up diagonally from above, which may cause abnormal vibrations during operation, and if the error becomes large, there is a danger that the rope may come off from the pulley groove when the elevator approaches the top floor. There is sex.

Furthermore, even if there is not much difference in the load supported and a beam of the same standard is sufficient, the beam dimensions will differ depending on the size of the cage and the size of the hoistway, so a beam must be manufactured for each elevator. However, due to the lack of standardization, the price of elevators became high.

The present invention was developed in view of these points, and is a raised hydraulic elevator that can be easily corrected on-site even if there is an error in the installation position of the jack or beam with respect to the center of the cage. The purpose is to provide.

Another object of the present invention is to provide a raised hydraulic elevator that can standardize elevators of the same size by unifying beams of the same size.

The present invention achieves the above object by rotatably attaching a beam to a cage lower beam and further attaching a pulley to the beam so that its axis can swing.

An embodiment of the present invention will be described below with reference to the drawings.

FIG. 3 is a plan view showing the main parts of the hydraulic elevator according to the present invention, and shows the pulley 11. The attached state of the beam 22 and the cage lower beam 23 is shown.

In addition, Figure 4 shows the cage lower beam 23 seen in the direction of line IV-IV in Figure 3.
Figure 5 is a front view showing how the pulley is installed.
FIG. 6 is a side view of FIG. 5.

In this embodiment, the pulley 11 is pivotally connected to a pulley mounting plate 24, which has an upper portion attached to the shaft.
5a to the beam 22.

In addition, the shaft 26 that pivotally connects the pulley 11 to the pulley mounting plate 24 has a
One end of the arm 27 is fitted, and the other end of the arm 27 is attached to the beam 22 by a shunt 25b.

The beam 22 has a beam 25a arranged at a predetermined interval.
, 25b are inserted into a plurality of holes 28.

Also, in the center of the beam 22 is a cylindrical rotation boss 2°9.
is provided protrudingly, and the cage lower beam 23 is rotatably fitted and attached to this rotation boss 29.

The operation and effects of the raised hydraulic elevator according to the present invention having such a configuration will be explained.

Initially, the arm 27 is fixed to the beam 22 by the shank 25b so that the pulley 11 is in a predetermined position according to the installation drawing.

If there is an error in the installation position of the beam 22, hydraulic jack 16, etc. with respect to the center of the cage, first rotate the beam 22 with respect to the cage lower beam 23 and move the entire pulley 11 as shown by arrow A in FIG. Rotate it like this.

Next, the attachment point of the arm 27 to the beam 22 is changed by inserting the shaft 25b into another hole 28, and the pulley 11 is swung in the longitudinal direction of the beam 22 as indicated by arrow B in FIG.

In this way, the installation position is corrected, and the pulley 11 becomes perpendicular to the plunger upper pulley 18.

As described above, according to the present invention, even if an error occurs in the installation position, the position can be easily corrected on site.

In addition, if the beam 22 of an appropriate length is manufactured by changing the position of the hole 28 into which the shaft 25a is inserted, the same beam can be used even if the cage dimensions, hoistway dimensions, etc. are slightly different. and the beam can be standardized.

In the above-mentioned embodiment, in order to swing the pulley 11, several holes are drilled in the beam and the mounting position of the arm 27 is changed. A similar effect can also be obtained by providing the following.

[Brief explanation of the drawing]

Figure 1 is a front view of a conventional lift type hydraulic elevator, Figure 2 is a schematic plan view taken in the direction of line ■-■ in Figure 1, and Figure 3
The figure is a plan view showing the main parts of the hydraulic elevator according to the present invention.
Figure 4 is a front view showing how the beam and pulley are installed as seen in the direction of line IV-IV in Figure 3, Figure 5 is a partially enlarged front view showing how the pulley is installed, and Figure 6 is a side view of Figure 5. It is a diagram. 11... Pulley, 22... Beam, 23
・・・・・・Cage lower beam, 24・・・Pulley mounting plate, 2
5a, 25b...Shaft, 2γ...
Arm, 28...hole, 29...rotation boss.

Claims (1)

[Claims for Utility Model Registration] 1. A beam having pulleys pivotally attached at both ends is attached to a cage lower beam on which a cage is placed so as to be rotatable around the center, and In the lift type hydraulic elevator that moves the cage up and down by lifting and lowering a wrapped rope with a hydraulic jack, the pulley is a pulley attached to the beam so as to be swingable in the longitudinal direction of the beam. It is pivotally mounted to a mounting plate with its axis oriented in a direction perpendicular to the beam, and the mounting plate is provided with a fixing mechanism for fixing the mounting plate at a predetermined swinging position. A raised hydraulic elevator. 2. The pulley mounting plate has one end attached to the beam and the other end of the arm attached to the mounting plate, the beam, and the arm to form a triangle, and the respective attachment ends of the arm to the beam and the mounting plate. A raised hydraulic elevator according to claim 1, wherein the distance between the parts is variable.