JP2014172712A - Elevator - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a counterweight including a counterweight adjustment table improved in manufacturability by making an adjustment table with an inexpensive member having sufficient strength even though the table has simple structure.SOLUTION: An elevator includes a cage and a counterweight 1 and moves up and down in a can hoisting manner. In the elevator, a shock absorber is set below the counterweight 1, a single or a plurality of adjustment tables 6a, 6b formed of H-shaped material is or are set on a portion positioning at the lower edge part of the counterweight 1 and the vertically upper part of the shock absorber, and the adjustment tables 6a, 6b include a connection part and distance adjustment parts 6c, 6d and are detachably set via the connection part.

Description

  The present invention relates to an elevator having a counterweight.

  Generally, in a rope type elevator, an adjustment base is provided at the lower end of the counterweight or the shock absorber base in order to adjust the gap between the counterweight and the shock absorber due to the extension of the main rope.

  Patent Document 1 describes a counterweight spacer that adjusts the distance between a counterweight and a buffer that receives the counterweight by installing a plurality of spacer bodies in an overlapping manner. It is described that the spacer body is provided with a locking portion and a locked portion that locks the locking portion.

JP-A-7-267537

  The spacer body described in Patent Document 1 has a complicated structure, and consideration for manufacturability has not been sufficient.

  SUMMARY OF THE INVENTION An object of the present invention is to provide a counterweight having an adjustment base that has sufficient strength even with an inexpensive and simple structure and has improved manufacturability.

  In order to solve the above-mentioned problems, the present invention comprises a carriage, a counterweight, and an elevator that moves up and down in a fishing bottle type, wherein a shock absorber is installed below the counterweight, and at the lower end of the counterweight. One or a plurality of adjustment bases, which are H-shaped members, are installed in a portion located vertically above the shock absorber, and the adjustment base has a connection part and a distance adjustment part, It is detachably installed.

  According to the present invention, it is possible to provide a counterweight provided with an adjusting table that has a sufficient strength even with an inexpensive and simple structure and has improved manufacturability.

It is a front view which shows the structure of the counterweight of an Example. It is a perspective view which shows the lower end part of the counterweight of FIG. It is a front view which shows the structure of the counterweight of an Example. It is a perspective view which shows the lower end part of the counterweight of FIG. It is a perspective view which shows the lower end part of the conventional counterweight.

  The balance weight of the elevator according to the embodiment of the present invention includes an adjustment base on which a plurality of members (H-shaped steel) having a substantially H-shaped cross section are detachably attached. This substantially H-shaped member is also referred to as an “H-shaped member”.

  The adjustment base has a connection portion and a distance adjustment portion, and in a state where a plurality of the adjustment stands are connected, the two adjustment planes may be arranged so that two planes constituting the distance adjustment portion of the adjacent adjustment stand are orthogonal to each other. desirable.

  FIG. 5 shows a counterweight spacer described in Patent Document 1 as a conventional example.

  In this figure, a counterweight spacer composed of a first spacer body 8 a and a second spacer body 8 b is attached to the lower end portion of the counterweight 1. The 1st spacer body 8a has the support | pillar part 9a and the attachment piece 10a. The 2nd spacer body 8b has the support | pillar part 9b and the attachment piece 10b. The first spacer body 8a and the second spacer body 8b are temporarily fixed by fitting the locked portion 11a of the mounting piece 10a and the locking portion of the mounting piece 10b. Thereafter, the connection bolts 17 are connected. The column portions 9a and 9b are columnar.

  The spacer body of the conventional example shown in this figure has a special and complicated shape.

  Hereinafter, embodiments will be described with reference to the drawings.

  In this embodiment, the main flat surfaces of the flat plate portions (H-shaped steel webs) constituting the distance adjusting portions of the two adjusting tables are arranged so as to be orthogonal to each other. The adjustment table includes a connection part (flange) and a distance adjustment part (web).

  3 and 4 show the structure of the counterweight of this embodiment.

  FIG. 3 is a front view of the counterweight, and FIG. 4 is a perspective view showing a lower end portion of the counterweight in FIG.

  In FIG. 3, an elevator counterweight 1 is suspended by a plurality of main ropes 2, guided by a guide rail 3, and moves up and down in a hoistway. In order to adjust the clearance C between the counterweight 1 that has been lowered to the lowest position and the shock absorber 5 attached to the pit bottom 4 within the reference value range at the lower end of the counterweight 1. The adjustment bases 6a and 6b made of members (H-shaped steel) having a substantially H-shaped cross section are attached. The lower end portion of the counterweight 1 and the adjustment base 6 a are fastened with a mounting bolt 7. Moreover, the adjustment stand 6a and the adjustment stand 6b are fastened with a mounting bolt 7.

  The adjustment bases 6a and 6b have a simple shape in which holes for attaching the mounting bolts 7 are formed in the H-shaped steel, and are easier to manufacture than the conventional adjustment bases. Moreover, the adjustment stands 6a and 6b each have a mass of about 5 kg, and can be easily attached and detached by a single operator.

  In FIG. 4, the adjustment bases 6 a and 6 b are attached by attachment bolts 7. The web 6c of the adjusting table 6a and the web 6d of the adjusting table 6b are fastened so as to be orthogonal to each other.

  In this configuration, when the main rope 2 extends due to the operation of the elevator and the gap C between the adjustment base 6b and the shock absorber 5 becomes smaller than the reference value, the attachment that fastens the adjustment base 6a and the adjustment base 6b. The bolt 7 is removed, and the adjustment base 6b is removed.

  Further, when the main rope 2 is extended and the gap C between the adjusting base 6a and the shock absorber 5 becomes smaller than the reference value again, the mounting bolt 7 that fastens the counterweight 1 and the adjusting base 6a is removed, Remove the adjustment base 6a.

  As described above, the gap C above the shock absorber 5 can be easily adjusted.

  Thereby, the intensity | strength with respect to the force of the direction parallel to the plane of the web 6c and the force of the direction parallel to the plane of the web 6d becomes high. Therefore, when the adjusting base 6b and the shock absorber 5 collide using the adjusting bases 6a and 6b which are lighter than the supporting column of the spacer body of the conventional example and can be manufactured only by cutting out the H-shaped steel. The strength against compressive load can be improved. Therefore, it is possible to cope with a case where the elevator has a large loading mass and the counterweight 1 has a large mass.

  In the present embodiment, the main flat surfaces of the flat plate portions (H-shaped steel webs) constituting the distance adjusting portions of the two adjusting tables are arranged so as to be parallel to each other.

  1 and 2 show the structure of the counterweight of this embodiment.

  In the following description, the same configuration as that of the first embodiment is omitted.

  In FIG. 2, the adjustment bases 6 a and 6 b are attached by attachment bolts 7. The web 6c of the adjustment table 6a and the web 6d of the adjustment table 6b are fastened so as to be parallel to each other.

  1: Balance weight, 2: Main rope, 3: Guide rail, 4: Pit bottom, 5: Shock absorber, 6a, 6b: Adjustment base, 6c, 6d: Web, 7: Mounting bolt, C: Gap.

Claims (2)

  In an elevator equipped with a carriage and a counterweight and moving up and down in a fishing bottle type, a shock absorber is installed below the counterweight, and is located at the lower end of the counterweight and vertically above the shock absorber One or a plurality of adjustment bases that are H-shaped members are installed in the part to be operated, and the adjustment base has a connection part and a distance adjustment part, and is detachably installed via the connection part. An elevator characterized by that.   2. The elevator according to claim 1, wherein two or more of the adjustment bases are arranged so that two planes constituting the distance adjustment unit of the adjacent adjustment bases are orthogonal to each other. .

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