JP2011037582A - Elevator balance weight - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To stack weights having a shape in consideration of safety and ease of handling, without decreasing a total weight of the weights. <P>SOLUTION: In elevator balance weights in which the plurality of weights 20 having a weight balanced with the weight of a car are stacked one upon another in a frame guided by a guide rail, these weights 20 are comprised of the weights 20 formed by filling concrete 22 into an iron frame 21 and solidifying the concrete. A recessed portion 24 serving as a handle is formed in the iron frame 21. Each weight is made up of blocks obtained by dividing the single elongated weight into three or more, and the individual blocks are engaged with each other through recessed portions and projected portions into the single weight. Further, an intermediate longitudinal frame is disposed at a mid-portion of right and left longitudinal frames constituting the frame so that the elongated weight can be divided into halves and stacked one upon another in two rows in side-by-side arrangement. Further, as the weights, the weights having a weight that cannot be handled with manpower, and a several number of these weights are laterally or vertically arranged and stacked one upon another in the frame. <P>COPYRIGHT: (C)2011,JPO&INPIT

Description

  The present invention relates to an elevator counterweight, and more particularly, to an elevator counterweight that allows a weight to be safely loaded.

  In the elevator, the load on the hoisting machine is reduced by balancing the counterweight with the weight of the car. Conventional counterweights balance the weight of the car by mounting the required number of weights on the counterweight frame.

  FIG. 11 shows an example of a conventional counterweight described in Patent Document 1.

The counterweight includes a pair of frame bodies 1 provided along the guide rails, a plurality of weights 2 held at both ends by the frame body 1, and through bolts 3 provided so as to penetrate these weights 2. The through bolt 3 and the main weight 2 are integrally provided with a nut 4. Reference numeral 5 denotes a hanging rope, and reference numeral 6 denotes a guide shoe that slides on the guide rail.
The weights 2 used in such a counterweight are stacked so as to be stacked on the frame body 1 in a necessary number.

JP 2000-31579 A

  Generally, as a weight used for a counterweight, a casting or iron plate having a weight of 10 to 40 kg is used. To balance the weight of the car, several tens of cars are required.

  Since such weights are loaded by an operator by hand, there is a risk of fingers being caught at the corners of the weight. For this reason, it is conceivable to change the weight shape from the viewpoint of safety.

  However, if the weight shape is changed, the space that can be loaded on the frame of the counterweight is limited, so that the necessary weight cannot be secured.

  SUMMARY OF THE INVENTION Accordingly, an object of the present invention is to balance an elevator that eliminates the problems of the prior art and that can load a weight that is shaped in consideration of safety and ease of handling without reducing the total weight. To provide a weight.

  In order to achieve the above object, according to a first aspect of the present invention, there is provided a counterweight of an elevator in which a plurality of weights that balance the weight of a car are loaded on a frame guided by a guide rail. The steel frame is made of a weight that is solidified with concrete and is filled with a recess that can be used as a handle.

  According to a second aspect of the present invention, there is provided a counterweight of an elevator in which a plurality of weights that are balanced with the weight of a car are loaded on a frame guided by a guide rail. The weight is a single horizontally long weight. The block is divided into three or more blocks, and each block is fitted with irregularities to form one weight.

  Furthermore, a third aspect of the present invention relates to an elevator balancing weight in which a plurality of weights that are balanced with the weight of a car are loaded on a frame guided by a guide rail. An intermediate vertical frame is provided in the middle so that two rows of weights each having a horizontally long weight can be stacked in parallel.

  Further, according to a fourth aspect of the present invention, there is provided a counterweight of an elevator in which a plurality of weights that balance the weight of a car are loaded on a frame guided by a guide rail, and the weight has a weight that cannot be handled by human power. A weight is used, and several weights are arranged in the horizontal direction or the vertical direction and stacked on the frame.

  According to the present invention, the weight can be safely loaded by changing the shape into consideration for the safety and handling of the loading operation without reducing the total weight of the weight.

It is a front view of the counterweight of the elevator by 1st Embodiment of this invention. It is a perspective view which shows the weight used for the counterweight of FIG. It is a perspective view which shows the other Example of a weight. It is a top view which shows the other Example of a weight. It is a front view of the counterweight of the elevator by 2nd Embodiment of this invention. It is a side view which shows the weight used for the counterweight of FIG. It is sectional drawing which shows the handle attached to one block of a weight. It is a front view of the counterweight of the elevator by 3rd Embodiment of this invention. It is a front view of the counterweight of the elevator by 4th Embodiment of this invention. It is a front view which shows the other example of the counterweight of the elevator by 4th Embodiment of this invention. It is a front view which shows the conventional counterweight.

Hereinafter, an embodiment of an elevator counterweight according to the present invention will be described with reference to the accompanying drawings.
First embodiment
FIG. 1 shows a counterweight of an elevator according to a first embodiment of the present invention.
In FIG. 1, reference numeral 10 indicates the entire counterweight. In FIG. 1, reference numerals 11 a and 11 b indicate guide rails that guide the lifting and lowering of the counterweight 10. Reference numeral 12 indicates a hanging rope. The counterweight 10 is composed of a frame formed by assembling an upper frame 14, a lower frame 15, and vertical frames 16 and 17 as a frame for loading weights.

  An end of the suspension rope 12 is fixed to the upper frame 14 via a fixing bracket 13. Guide shoes 18a and 18b that are slidably fitted to the guide rails 11a and 11b are attached to both ends of the upper frame 14, respectively.

  The lower frame 15 supports the weights 20 stacked in a stacked manner, and guide shoes 19a and 19b that are slidably fitted to the guide rails 11a and 11b are attached to both ends of the lower frame 15. .

  Here, FIG. 2 shows the weight 20 used in the counterweight of this embodiment. The weight 20 is a horizontally long weight obtained by filling a concrete 22 into a long box-shaped steel frame 21 with a bottom and solidifying the concrete. At both ends of the weight 20, convex portions 23 a and 23 b are formed to be fitted into the vertical frames 16 and 17 having a U-shaped cross section.

  In the weight 20, preferably, concave portions 24 are formed in the longitudinal direction on both side surfaces in the longitudinal direction of the iron frame 21 in order to make a step at the lower corner. In this embodiment, the recess 24 has a width and a depth that allow a finger to be inserted and to easily hold the weight 20.

  According to the counterweight 10 configured as described above, when loading the weight 20 on the counterweight 10, an operator can hold the weight 20 by putting a finger in the recess 24 when the corner of the iron frame 21 is held. For this reason, not only is it easy to hold, but it is also possible to avoid pinching a finger at the corner of the iron frame 21 when the weight 20 is lowered and stacked.

  Even in such a shape taking safety into consideration, the steel frame 21 and the concrete 22 are integrated, so that the shape can be changed without reducing the total weight of the weight.

Next, FIG. 3 shows another embodiment of the weight.
In the weight 30 shown in FIG. 3, the recess 31 is formed on the bottom surface of the iron frame 21 so as to cross in the width direction.

FIG. 4 shows still another embodiment of the weight.
The weight 40 shown in FIG. 4 is an example in which, in the weight 20 shown in FIG. 2, instead of forming the convex portions 23 a and 23 b at both ends, both ends are lengthened and a notch 42 is formed. The vertical frames 16 and 17 are fitted into the cutout portion 42 when loaded.

  In this weight 40, the length of the weight as a whole can be made easier to stack, which makes it safer and can also increase the weight of the weight.

Second embodiment
Next, a counterweight according to a second embodiment of the present invention will be described with reference to FIG. In addition, the same reference number is attached | subjected to the component same as FIG. 1 of 1st Embodiment, and the detailed description is abbreviate | omitted.
The second embodiment is an embodiment in which one horizontally long weight 50 is divided into, for example, three blocks 50a, 50b, and 50c as shown in FIG.

  In each of the blocks 50a, 50b, and 50c, for example, grooves 51 and 52 are formed on the left and right side surfaces of the middle block 50b, and convex portions 53 that fit into the grooves 51 are formed on the side surfaces of the end block 50a. Similarly, the projections 54 fitted to the side surfaces 52 of the end blocks 50c are formed so that the projections and recesses are fitted to each other so that they can be combined into one horizontal weight 50 as a whole.

  In each block 50a, 50b, and 50c, as shown in FIG. 7A, the handle 55 can be detachably attached by screwing the handle 55 into the screw hole 56.

  When loading the weight 50 on the frame of the counterweight 10, attach a handle 55 to each block 50a, 50b, 50c, hold the handle 55 and load each block, and combine them into one weight as shown in FIG. Just do it. Since the handle 55 gets in the way when the weight 50 is stacked, the handle 55 is removed after loading.

  Thus, by dividing one horizontal weight 50 into blocks 50a, 50b, and 50c, it can be handled in units of blocks, and it becomes possible by safely loading work, and the total weight is also reduced. Absent.

  Next, FIG.7 (b) shows the other Example of a weight. In the weight 50 shown in FIG. 7B, a handle 57 as a handle is provided integrally with each block 50a, 50b, 50c. In this case, in each block 50 a, 50 b, 50 c, a recess 58 is formed on the upper surface, and a handle 57 is fixed so as to cross the recess 58. If the handle 57 is attached in this way, the handle does not get in the way when stacked.

In addition, although the above example is an example which comprised one weight from the block of 3 divisions, it is not limited to this, 4 divisions and 5 divisions may be sufficient.
Each block may be formed of a casting, or may be formed by filling an iron frame with concrete as in the first embodiment.

Third embodiment
FIG. 8 shows a counterweight according to a third embodiment of the present invention.

  In the third embodiment, an intermediate vertical frame 59 is added to the frame structure of the counterweight 10. The intermediate vertical frame 59 is arranged in parallel between the vertical frames 16 and 17. Whereas the vertical frames 16 and 17 have a U-shaped cross section, the intermediate vertical frame 59 is made of a H-shaped cross section.

  By providing the intermediate vertical frame 59 in this way, the small weights 60 can be stacked in two rows in parallel. In this case, the weight 60 is obtained by halving a normal horizontal weight.

  According to the counterweight 10 configured as described above, the weight of one weight 60 is half that of a normal horizontal weight, which makes handling easier and may cause injury by pinching fingers. It becomes possible to perform loading work safely. In addition, since the total weight of the weight as a whole does not change, both maintenance of the total weight and safety can be realized.

  In addition, about the weight 60, you may make it make each thickness thinner. Then, since the weight per weight 60 becomes lighter, the number of sheets to be loaded increases, but the loading operation becomes more secure by reducing the weight of the weight 60.

Fourth embodiment
Next, a counterweight according to a fourth embodiment of the present invention will be described with reference to FIGS.

  In the fourth embodiment, contrary to the third embodiment in which the number of weights to be loaded is increased, the weight is increased in size so that the total weight is carried by several, three to five, and six weights. It is a form.

  As shown in FIG. 9, three vertical weights 62 are mounted on the counterweight 10 in the horizontal direction. The three weights 62 are fixed to the vertical frames 16 and 17 by a connecting member 63. In this example, if the total weight of the weight is, for example, 300 kg, one weight 62 becomes 100 kg. FIG. 10 shows an embodiment in which three weights 62 are arranged one above the other.

  According to the counterweight configured as described above, the weight of one weight 62 is too heavy for a person to manually load, and therefore, it is loaded using a crane. As a result, it is possible to indirectly avoid the danger associated with manual work, for example, the danger of pinching a finger when stacking weights.

  In the present embodiment, the weight of each weight 62 is a weight that cannot be carried manually, and is a weight that can cover the total weight of several weights, specifically 50 to 200 kg.

  DESCRIPTION OF SYMBOLS 10 ... Counterweight, 11a, 11b ... Guide rail, 12 ... Hanging rope, 14 ... Upper frame, 15 ... Lower frame, 16 ... Vertical frame, 17 ... Vertical frame, 20 ... Weight, 21 ... Iron frame, 22 ... Concrete, 24 ... concave, 30 ... weight, 40 ... weight, 50 ... weight, 59 ... intermediate vertical frame

Claims (5)

In the balance weight of an elevator, in which a frame guided by the guide rail is loaded with a plurality of weights that balance the weight of the car,
The balance weight of an elevator, wherein the weight is made of a weight obtained by filling an iron frame with concrete and hardened, and a recess that can be a handle is formed in the iron frame. In the balance weight of an elevator, in which a frame guided by the guide rail is loaded with a plurality of weights that balance the weight of the car,
The weight of an elevator, which is composed of blocks obtained by dividing one horizontally-weighted weight into three or more, and each block is fitted with irregularities to form one weight.   The elevator counterweight according to claim 2, wherein a handle is detachably or integrally provided in each block. In the balance weight of an elevator, in which a frame guided by the guide rail is loaded with a plurality of weights that balance the weight of the car,
An elevator counterweight, characterized in that an intermediate vertical frame is provided in the middle of the left and right vertical frames constituting the frame, and two horizontal weights can be stacked in parallel. In the balance weight of an elevator, in which a frame guided by the guide rail is loaded with a plurality of weights that balance the weight of the car,
An elevator counterweight, wherein a weight having a weight that cannot be handled by human power is used as the weight, and several weights are arranged in a horizontal direction or a vertical direction and loaded on the frame.

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