JPS638688Y2 - - Google Patents

Description

[Detailed description of the invention] This invention relates to an improvement of a counterweight for an elevator.

First, a conventional counterweight will be explained with reference to FIG. Guide rails 1 are arranged vertically facing each other and supported by rail brackets (not shown). 2 is a square-shaped counterweight frame; 2a is a vertical member of the frame 2 made of channel steel with its grooves facing each other; 3 is a vertical member at the top and bottom of the frame 2; 4 is a main rope of the elevator held on the upper part of the frame 2; 5 is a weight body consisting of a large number of unit weights 5a; is inserted into a groove in the vertical member 2a and held by the frame 2.

The weight of the weight body 5 varies depending on the type of elevator, and this can be accommodated by changing the width, length, and height of the weight body 5.

Incidentally, within the type of elevator, the longitudinal direction and height dimensions are defined depending on the layout of the hoistway, and only the width dimension may be variable. In this case, the width of the unit weight 5a is changed depending on the weight classification of the weight body 5. For this reason, there was a drawback that different types of unit weights 5a had to be provided depending on the width.

This invention solves the above-mentioned conventional problems, and provides a counterweight for elevators that can cope with changes in weight width without increasing the types of unit weights. It is characterized in that it has a dimension that engages with the frame, and the short sides at both ends are an integral fraction of the dimension that fully engages the opposing grooves of the frame.

2 to 4 show a counterweight for an elevator according to this invention, with FIG. 2 being a top view, FIG. 3 being an end view, and FIG. 4 being a side view.

In this unit weight 5a, the longitudinal sides thereof have a length to engage with the upright frames 2, 2 of the elevator, as described above. On the other hand, a notch 5b cut at a right angle in the shape of a right angle is formed at both ends of the unit weight, and the protruding end left by this notch 5b serves as an engaging part 5c that also serves as a hand grip. .

That is, the width of the unit weight 5a in the horizontal direction is B, and the width in the height direction is A. Since the notches 5b are formed at both ends as described above, the width of the portion that engages with the vertical groove of the frame is A/2.

Fig. 5 shows an example of the use of one of the unit weights 5a according to the invention shown in Figs. 2 to 4. Two parallel unit weights are arranged back to back with one another, with the engaging portions 5c at both ends facing each other to abut on each other to a width of A, and this portion is engaged with the vertical groove of the elevator frame. Thus, two series of weight widths can be attached to the same frame.

Although FIG. 5 shows a case in which the unit weights are arranged in two rows, it is also possible to arrange the unit weights in three or more rows as long as the dimensions are such that they can be engaged with the grooves of the frame body.

As is clear from the above, since two types of weights having arbitrary widths can be configured with one type of unit weight, the number of types of unit weights can be reduced.

As described above, according to the elevator counterweight of this invention, the unit weight is provided with engaging portions at both longitudinal ends, each engaging portion is disposed closer to one side in the width direction in a plane, and the above-mentioned The width dimension is 1/2 of the groove width of the counterweight frame.
, and the vertical dimension of the vertical surface corresponds to the groove width dimension, so
It is now possible to use the unit weights by placing them back to back and engaging the respective engaging parts with the longitudinal grooves of the frame body, and when changing the width of the unit weight depending on the weight category of the weight body. can have two types of weight widths with one unit weight.

With this, it is possible to increase the applicable weight of the weight body using one type of unit weight, and the number of types of unit weights can be halved.

[Brief explanation of the drawing]

Fig. 1 is a front view showing a conventional elevator counterweight, Fig. 2 is a top view showing an embodiment of the unit weight in the elevator counterweight of this invention, Fig. 3 is an end view of Fig. 2, and Fig. 4 is a front view showing a conventional counterweight for an elevator. The figure is a front view of a unit weight in the elevator counterweight of this invention, and FIG. 5 is an end view showing an example of the use of the unit weight according to this invention. 2... Frame body, 5... Weight body, 5a... Unit weight, 5b... Notch portion, 5c... Engaging portion. In addition,
The same reference numerals in the figures indicate the same or corresponding parts.

Claims (1)

[Scope of utility model registration request] A frame body assembled in a square shape with vertical members having groove-shaped openings facing each other and spaced apart from each other, and a plurality of vertical members in the frame body, each of which has engaging portions at both ends that are respectively fitted into grooves of the vertical members. In the counterweight for an elevator, the engaging portion is disposed closer to one side in the width direction in the plane of the unit weight, and the dimension in the width direction is equal to the vertical dimension. The height dimension corresponds to 1/2 of the groove width dimension of the member, and the height dimension corresponds to the groove width dimension of the vertical member, and the two unit weights are arranged in parallel with the surfaces along the width direction horizontally. and the above-mentioned engaging parts are arranged in contact with each other and the engaging parts are fitted into the grooves of the above-mentioned vertical member, or the above-mentioned unit weight is in a state in which the surface along its width direction is vertical. A counterweight for an elevator, characterized in that the engaging portion thereof is disposed so as to fit into the groove of the vertical member.