JP7355246B2 - Lifting beam and manufacturing method of lifting beam - Google Patents

Description

The present disclosure relates to a lifting beam used for lifting equipment through an elevator hoistway and a method for manufacturing the lifting beam.

When lifting equipment through the elevator hoistway during the installation of elevator equipment, etc., the equipment to be lifted can be lifted by attaching a lifting device such as a hoist to the lifting beam installed at the top of the hoistway. loads are applied to the hoistway walls. Conventionally, one end of two fixing members is supported by receiving members fixed to mutually facing hoistway walls, and the other ends of each of the fixing members are fixed from the top and bottom with connecting members to create a lifting beam. There is a lifting beam that can be expanded and contracted between hoistway walls by adjusting the fixing positions of a fixing member and a connecting member (for example, see Patent Document 1).

Japanese Patent Application Publication No. 2000-335847

However, when constructing a lifting beam by fixing the fixing members from above and below using connecting members, it is necessary to fasten the fixing members and the connecting members from above and below using fastening members. As a result, it is not possible to place other beams, etc. at the location of the connecting member due to interference with the fastening members, and there are restrictions on where it can be lifted, making it impossible to lift at any position between the hoistway walls. There was an issue.

The present disclosure has been made in order to solve the above-mentioned problems, and provides a lifting beam that can be lifted at any position between hoistway walls without any restrictions on the positions where it can be lifted. The purpose is to

The lifting beam according to the present disclosure includes a first extendable part bracket fixed to one first hoistway wall of mutually opposing hoistway walls of an elevator hoistway, and a first extendable part bracket fixed to the first extendable part bracket; Of the hoistway walls, a first extendable portion extending toward the other second hoistway wall , planar flange portions provided above and below the first extendable portion , and upper and lower flange portions. and a support beam having a web portion provided between the support beams, the web portion having the first hoistway wall side sandwiched between the first telescopic portions.

Further, the method for manufacturing a lifting beam according to the present disclosure includes a step of fixing a first support bracket to a first hoistway wall of one of mutually opposing hoistway walls of an elevator hoistway, and a first telescopic portion bracket. a step of sandwiching the reinforcing ribs between the first elastic parts extending in a first direction, which is the width direction of the hoistway, and between the flange parts of the support beams arranged above and below the first elastic parts. The present invention includes the steps of sandwiching the web portion of the support beam provided between the first telescoping portions and fixing the first telescoping portion bracket holding the support beams above the first support bracket.
Further, in the method for manufacturing a lifting beam according to the present disclosure, the first support bracket is fixed to one first hoistway wall of mutually opposing hoistway walls of an elevator hoistway, and the first support bracket is fixed to the other second hoistway wall. a step of fixing the second support bracket; a step of sandwiching the reinforcing rib of the first telescoping portion bracket with a first telescoping portion extending in a first direction that is the width direction of the hoistway; sandwiching the reinforcing ribs of the bracket between the second telescopic portions extending in the first direction, and the flange portions of the support beams disposed above and below the first telescopic portion and the second telescopic portion. a step of sandwiching the web part of the support beam between the first telescopic part and the second telescopic part; 2, the step of fixing the extendable part brackets respectively.

According to the present disclosure, since the lifting beam can be lifted at any position, the workability of installing the elevator device is improved.

1 is a perspective view showing a lifting beam according to Embodiment 1. FIG. 1 is a front view showing a lifting beam according to Embodiment 1. FIG. 1 is a plan view showing a lifting beam according to Embodiment 1. FIG. 1 is a side view showing a lifting beam according to Embodiment 1. FIG. FIG. 3 is a partially enlarged view showing the lifting beam according to the first embodiment. 1 is an exploded perspective view showing a lifting beam according to Embodiment 1. FIG. FIG. 7 is a front view showing a lifting beam according to a second embodiment. FIG. 7 is a plan view showing a lifting beam according to a second embodiment. FIG. 3 is a perspective view showing a hanging base according to Embodiment 2; FIG. 7 is an explanatory diagram of lifting work according to the second embodiment. FIG. 7 is a front view of a lifting beam according to Embodiment 3;

Embodiments will be described below based on the drawings.

Embodiment 1.
1 is a perspective view showing a lifting beam 100 according to the first embodiment, FIG. 2 is a front view showing the lifting beam 100 according to the first embodiment, and FIG. 3 is a perspective view showing the lifting beam 100 according to the first embodiment. FIG. 4 is a plan view showing the beam 100 and a side view showing the lifting beam 100 according to the first embodiment. In FIGS. 2 and 3, a lifting beam 100 is provided in an elevator hoistway 1 and is arranged across opposing hoistway walls. Hereinafter, for the sake of explanation, one of the opposing hoistway walls will be referred to as a first hoistway wall 1a, and the other hoistway wall will be referred to as a second hoistway wall 1b. Also, for the sake of explanation, the horizontal direction in FIGS. 2 and 3 is referred to as the width direction of the hoistway 1, the paper penetrating direction in FIG. 2, and the vertical direction in FIG. 3 is referred to as the depth direction of the hoistway 1. The vertical direction in FIG. 3 and the direction passing through the plane of the paper in FIG.

The lifting beam 100 includes telescopic part brackets fixed to the mutually opposing first and second hoistway walls 1a and 1b of the hoistway 1, and a telescoping part 6 extending in the width direction of the hoistway 1. , a support beam 4 having a web part 4b held between an expandable part 6 and a flange part 4a which is a surface on which other equipment can be placed. Each configuration will be explained below.

The telescoping brackets are each provided above the support bracket. The support brackets are fixed to opposing first and second hoistway walls 1a and 1b, respectively. Here, for the sake of explanation, the support bracket fixed to the first hoistway wall 1a will be referred to as a first support bracket 11, and the support bracket fixed to the second hoistway wall 1b will be referred to as a second support bracket 12. Further, the first support bracket 11 and the second support bracket 12 are collectively referred to as a support bracket.

The first support bracket 11 has a planar upper surface that extends in the direction toward the second hoistway wall 1b, that is, in the width direction of the hoistway 1, and side portions fixed to the first hoistway wall 1a. It is formed into an approximately L-shape. On the other hand, the second support bracket 12 also has a planar upper surface that extends in the direction toward the first hoistway wall 1a, that is, in the width direction of the hoistway 1, and is fixed to the second hoistway wall 1b. It is formed into a substantially L-shape with the side portions. The anchor bolts 3 are inserted into the first support bracket 11 and the second support bracket 12 so that their upper surfaces are at approximately the same height, and are attached to the first hoistway wall 1a and the second hoistway wall 1b. Each is fixed. The anchor bolt 3 is inserted through attachment holes 11b and 11c provided on the side of the first support bracket 11 and attachment holes 12b and 12c provided on the side of the second support bracket 12, respectively.

Here, as shown in FIG. 4, the mounting holes 11b and 12b have an oval shape with a long axis in an oblique direction, that is, in a direction different from the depth direction of the hoistway 1, and the mounting holes 11c and 12c have a lateral direction. In other words, it is preferable to have an elliptical shape having a long axis in the depth direction of the hoistway 1. Further, in the example of FIG. 4, the attachment holes 11b and 12b have long axes that are diagonal to the depth direction of the hoistway 1. In this way, even after the support bracket is fixed to the first hoistway wall 1a and the second hoistway wall 1b, the angle and posture of the support bracket can be adjusted. In this case, it is preferable that the mounting hole 12c is arranged at a position facing the mounting hole 11b, and the mounting hole 12b is arranged at a position facing the mounting hole 11c. In this way, the directions in which the support brackets can move are different between the supporting brackets facing each other, so that the degree of freedom in adjusting the angle and posture of the support brackets is improved.

Further, the first support bracket 11 has reinforcing ribs 11a, and the second support bracket 12 also has reinforcing ribs 12a. In the example of FIG. 1, the reinforcing ribs 11a and 12a are formed in a substantially triangular shape when viewed from the side. Further, the reinforcing rib 11a is provided between the top and side portions of the first support bracket 11, and the reinforcing rib 12a is provided between the top and side portions of the second support bracket 12. In the example of FIG. 1, a plurality of reinforcing ribs 11a and 12a are arranged in the depth direction of the hoistway 1. By providing the reinforcing ribs 11a and 12a in this manner, the load bearing capacity of the support bracket in the vertical direction of the hoistway 1 can be improved.

Expandable brackets are fixed above the first support bracket 11 and the second support bracket 12, respectively. Hereinafter, for the sake of explanation, the telescopic part bracket fixed above the first support bracket 11 will be referred to as a first telescopic part bracket 81, and the telescopic part bracket fixed above the second support bracket 12 will be referred to as a second telescopic part bracket. It is called a bracket 82. Moreover, the first telescopic part bracket 81 and the second telescopic part bracket 82 are collectively referred to as a telescopic part bracket.

FIG. 5 is a partially enlarged view showing the lifting beam 100 according to the first embodiment. The first telescopic portion bracket 81 has a side portion facing the first hoistway wall 1a and a plane extending in the direction from the first hoistway wall 1a toward the second hoistway wall 1b, that is, in the width direction of the hoistway 1. It has a shaped lower part. Further, in the example of FIG. 5, the first telescopic portion bracket 81 is formed into a substantially C-shape by an upper portion, side portions, and lower portion. The first support bracket 11 and the first telescoping bracket 81 are made of, for example, bolts, nuts, etc., which are inserted into the upper part of the first support bracket 11 and the lower part of the first telescoping part bracket 81, respectively. It is fixed by a fastening member 9.

Further, the second telescopic part bracket 82 extends on the side facing the second hoistway wall 1b and in the direction from the second hoistway wall 1b toward the first hoistway wall 1a, that is, in the width direction of the hoistway 1. It has a flat bottom. Similarly to the first telescopic part bracket 81, the second telescopic part bracket 82 is also formed into a substantially C-shape with an upper part, a side part, and a lower part. The second support bracket 12 and the second telescoping bracket 82 are fixed by fastening members 9 inserted through the upper part of the second support bracket 12 and the lower part of the second telescoping part bracket 82, respectively. In this way, the first extendable part bracket 81 and the second extendable part bracket 82 are fixed to the first hoistway wall 1a and the second hoistway wall 1b, respectively.

Further, the first telescoping bracket 81 is provided with reinforcing ribs 81a adjacent to the side and bottom portions, and the second telescoping portion bracket 82 is also provided with reinforcing ribs 82a adjacent to the sides and bottom. There is. A telescopic portion 6, which will be described later, is arranged to sandwich the reinforcing ribs 81a and 82a from both sides in the depth direction of the hoistway 1, and a holding member 10 such as a bolt is inserted through the telescopic portion 6 and the reinforcing ribs 81a and 82a. The telescopic portion 6 and the telescopic portion bracket are fixed together.

Further, it is preferable that a telescopic part fixing member 7 is inserted through the upper part of the telescopic part bracket toward the telescopic part 6, and that the telescopic part fixing member 7 fixes the telescopic part 6 to the telescopic part bracket. Here, the telescopic part fixing member 7 is, for example, a bolt or the like, and is inserted so as to be able to fix the telescopic part 6 to the telescopic part bracket, and can tighten the telescopic part 6 from the vertical direction of the hoistway 1. Thereby, the end of the extensible portion 6 becomes a fixed end, and movement of the extensible portion 6 in the vertical direction of the hoistway 1 can be restricted, and the load bearing capacity of the lifting beam 100 in the vertical direction is improved. Note that the extendable part 6 is fixed to the opposing first hoistway wall 1a and second hoistway wall 1b via extendable part brackets, and the extendable part 6 and the support beam 4 serve as fixed beams at both ends, so the same applies. The load bearing capacity of the lifting beam 100 in the vertical direction is improved.

Next, returning to FIGS. 1 to 4, the extensible portion 6 of the lifting beam 100 and the support beam 4 will be described. The extensible portion 6 and the support beam 4 are made of a material, such as steel, that has a load capacity necessary for installing the elevator system. Further, it is preferable that the extensible portion 6 and the support beam 4 are made of an Al alloy such as super duralumin (A2024). Al alloy is lightweight compared to steel, etc., so if the elastic part 6 and support beam 4 are made of Al alloy, each member can be used for transportation and hoistway 1 during installation of elevator equipment while ensuring load resistance. The installation work becomes easier.

The telescoping section 6 has a first telescoping section 61 having one end fixed to a first telescoping section bracket 81 and a second telescoping section 62 having one end fixed to a second telescoping section bracket 82 . The first expandable portion 61 and the second expandable portion 62 each have expandable pieces that face each other in the depth direction of the hoistway 1. Here, the opposing telescoping pieces have substantially the same shape. Hereinafter, for the sake of explanation, the telescoping piece of the first telescoping section 61 will be referred to as a first telescoping section 61a, and the telescoping section of the second telescoping section 62 will be referred to as a second telescoping section 62a.

The first telescopic portion 61 holds the reinforcing rib 81a of the first telescopic portion bracket 81 between the first telescopic portion pieces 61a from both sides in the depth direction of the hoistway 1. The first telescoping section 61 is fixed to the first telescoping section bracket 81 by the holding member 10 inserted through the first telescoping section 61a and the reinforcing rib 81a. The first telescopic portion 61 extends horizontally from the first hoistway wall 1a on which one end is fixed toward the opposing second hoistway wall 1b so that the width direction of the hoistway 1 becomes the longitudinal direction. There is. Further, each of the first extensible pieces 61a is formed into a substantially L-shape by folding back one end thereof on the side of the first hoistway wall 1a. Furthermore, the upper portions of these first telescopic portions 61a are each fixed by a telescopic portion fixing member 7. As described above, the first telescopic portion 61 is fixed to the first hoistway wall 1a via the first telescopic portion bracket 81.

In addition, a gap is provided between the opposing first telescoping pieces 61a, and a flange portion 4a that is a horizontal surface with respect to the hoistway 1 and a web portion that is a vertical surface with respect to the hoistway 1, which will be described later. The first hoistway wall 1a side of the web portion 4b of the support beam 4 having the support beam 4b is inserted into this gap and held by the first telescopic portion 61. The first telescopic portion 61 has a plurality of adjustment holes 6a provided in the first telescopic portion 61a in the extending direction, that is, in the width direction of the hoistway 1. Then, the holding member 10 is inserted into a part of the plurality of adjustment holes 6a, and the first hoistway wall 1a side of the support beam 4 is fixed to the first extensible portion 61.

The second stretchable part 62 is arranged on the second hoistway wall 1b side, apart from the first stretchable part 61. The second telescopic portion 62 holds the reinforcing rib 82a of the second telescopic portion bracket 82 between the second telescopic portion pieces 62a from both sides in the depth direction of the hoistway 1.

Further, the second telescoping portion 62 is fixed to the second telescoping portion bracket 82 by the holding member 10 inserted through the second telescoping portion 62a and the reinforcing rib 82a. Further, the second telescopic portion 62 is also horizontally moved from the second hoistway wall 1b on which one end is fixed toward the opposing first hoistway wall 1a so that the width direction of the hoistway 1 becomes the longitudinal direction. It extends to Here, the second extensible piece 62a is formed into a substantially L-shape by folding back one end on the second hoistway wall 1b side. Furthermore, the upper portions of these second telescopic portions 62a are each fixed by a telescopic portion fixing member 7. As described above, the second telescopic portion 62 is fixed to the second hoistway wall 1b.

Further, a gap is provided between the opposing second telescopic portions 62a, and the second hoistway wall 1b side of the web portion 4b of the support beam 4 is inserted into this gap and held between the second telescopic portions 62. be done. Similarly to the first elastic part 61, the second elastic part 62 also has a plurality of adjustment holes 6a provided in the second elastic part 62a in the longitudinal direction, that is, in the width direction of the hoistway 1. The holding member 10 is inserted into a part of the plurality of adjustment holes 6a, and the second hoistway wall 1b side of the web portion 4b of the support beam 4 is fixed to the second extensible portion 62. Note that the first stretchable section 61 and the second stretchable section 62 are arranged at approximately the same height. By arranging the first elastic part 61 and the second elastic part 62 in this way, when a load is applied to the support beam 4, it is possible to suppress the load from being biased to one side.

Here, it is preferable that the adjustment holes 6a of the first and second elastic parts have an oval shape with a long axis in the extending direction, that is, in the width direction of the hoistway 1. In this way, even after the lifting beam 100 is installed in the hoistway 1, the position of the holding member 10 in the adjustment hole 6a can be adjusted, so the length of the lifting beam 100 can be adjusted.

Next, the support beam 4 will be explained. The support beam 4 has a vertical web portion 4b that is held between the telescopic portions 6, and a horizontal flange portion 4a on which other equipment can be placed when installing the elevator system. In the example of FIG. 1, the support beam 4 has a substantially H-shaped flange portion 4a and a web portion 4b integrally formed. Further, the flange portion 4a of the support beam 4 is provided above and below the first elastic portion 61 and the second elastic portion 62, respectively, and the web portion 4b of the support beam 4 is provided between these flange portions 4a. It is provided. Here, as shown in FIG. 1, the length of the flange portion 4a of the support beam 4 in the transverse direction is the length of the extensible portion 6 in a plan view (viewpoint when the lifting beam 100 is viewed from above the hoistway 1). It is longer than the length in the transverse direction.

The web portion 4b of the support beam 4 extends in the width direction of the hoistway 1, and the first hoistway wall 1a side is held between the first telescoping pieces 61a from both sides in the depth direction of the hoistway 1, and the web portion 4b extends in the width direction of the hoistway 1. 1b side is held between both sides of the hoistway 1 in the depth direction by the second telescoping pieces 62a. Further, the support beam 4 is fixed by a holding member 10 inserted through the web portion 4b and the adjustment hole 6a of the extensible portion 6. Here, since the extensible portion 6 is provided with a plurality of adjustment holes 6a in the width direction of the hoistway 1, the fixing position of the support beam 4 can be selected as appropriate. Thereby, the position of the support beam 4 is not restricted between the first expansion and contraction part 61 and the second expansion and contraction part 62, and the position of the support beam 4 can be set arbitrarily.

Further, the flange portion 4a of the support beam 4 is formed into a planar shape, and is arranged across the first expandable portion 61 and the second expandable portion 62. In this way, other equipment can be placed on the upper surface of the flange portion 4a of the support beam 4, and on the lower surface of the flange portion 4a of the support beam 4, a portion overhanging from the extendable portion 6 in a plan view can be placed. Other equipment can be hung in the area. Further, as described above, since the fixing position of the support beam 4 can be selected as appropriate, the position of the flange portion 4a of the support beam 4 in the hoistway 1 can also be set arbitrarily. Further, since the support beam 4 is held between the first elastic part 61 and the second elastic part 62, and the holding member 10 is inserted and fixed in the width direction of the hoistway 1, the support beam 4 is held in the vertical direction. The holding member 10 and other equipment do not interfere with each other, and there are no restrictions on the locations that can be lifted.

In this way, of the first hoistway wall 1a and the second hoistway wall 1b facing each other in the elevator hoistway 1, the first telescopic part bracket 81 fixed to one first hoistway wall 1a and the other a second telescoping part bracket 82 fixed to the second hoistway wall 1b; a first telescoping part 61 fixed to the first telescoping part bracket 81 and extending toward the second hoistway wall 1b; A second telescoping portion 62 fixed to the telescoping portion bracket 82 and extending toward the first hoistway wall 1a, and planar flanges provided above and below the first telescoping portion 61 and the second telescoping portion 62. The lifting beam 100 includes a support beam 4 having a portion 4a and a web portion 4b provided between the upper and lower flange portions 4a, and the web portion 4b of the support beam 4 is connected to the first hoistway wall. 1a side is held between the first elastic parts 61 and the second hoistway wall 1b side is held between the second elastic parts 62, so that the lifting beam 100 can be lifted at any position. Improves installation workability.

(Production method)
Next, a method for manufacturing the lifting beam 100 will be described. FIG. 6 is an exploded perspective view of the lifting beam 100 according to the first embodiment. In the following, after fixing the support brackets to the first hoistway wall 1a and the second hoistway wall 1b, a structure including the support beam 4, the telescopic part 6, and the telescoping part bracket is assembled, and the structure is attached to the support bracket. An example in which the lifting beam 100 is installed and attached to the hoistway 1 will be described. First, in the hoistway 1 of an elevator, the first support bracket 11 and the second support bracket 12 are respectively fixed to the first hoistway wall 1a and the second hoistway wall 1b that face each other. When fixing the first support bracket 11 and the second support bracket 12, the first support bracket 11 and the second support bracket 12 are adjusted and arranged so that the heights of the upper surfaces of the first support bracket 11 and the second support bracket 12 are approximately the same.

Then, the anchor bolts 3 are inserted into the attachment holes 11b and 11c on the side of the first support bracket 11, respectively, to fix the first support bracket 11 to the first hoistway wall 1a. Further, regarding the second support bracket 12, the anchor bolts 3 are inserted into the attachment holes 12b and 12c on the side of the second support bracket 12, respectively, to fix the second support bracket 12 to the second hoistway wall 1b. Note that if the mounting holes 11b, 11c, 12b, and 12c are oval, the angle of the support bracket can be adjusted even after it is fixed to the first hoistway wall 1a and the second hoistway wall 1b. .

Next, the first telescoping part 61 is fixed to the first telescoping part bracket 81 disposed on the first hoistway wall 1a side, and the second telescoping part 61 is fixed to the second telescoping part bracket 82 disposed on the second hoistway wall 1b side. 62 is fixed.

First, fixing of the first expandable portion 61 will be explained. The first telescopic portion pieces 61a are respectively arranged on the upper surface of the lower part of the first telescopic portion bracket 81, and the reinforcing rib 81a of the first telescopic portion bracket 81 is sandwiched between the first telescopic portion pieces 61a from both sides. Then, the circular through hole 81b formed near the center of the reinforcing rib 81a is aligned with the circular through hole 61b formed at the end of the first expandable piece 61a. At this time, the first telescopic part 61a is arranged so that no gap is created between the first telescopic part 61a and the first telescopic part bracket 81.

After arranging the first telescopic part 61 on the first telescopic part bracket 81, the holding member 10 is inserted into the through hole 61b of the first telescopic part 61 and the through hole 81b of the first telescopic part bracket 81. and the first telescopic part bracket 81 are fixed. Furthermore, the elastic part fixing member 7 is inserted into the through hole 81c formed in the upper part of the first elastic part bracket 81, and is fixed so that the first elastic part 61 does not move in the vertical direction.

The method of fixing the second elastic part 62 is also the same as the method of fixing the first elastic part 61. First, the second telescoping pieces 62a are placed on the upper surface of the lower part of the second telescoping bracket 82, and the reinforcing rib 82a of the second telescoping bracket 82 is sandwiched between the second telescoping pieces 62a from both sides. Then, a through hole (not shown) formed near the center of the reinforcing rib 82a and a circular through hole 62b formed at the end of the second expandable piece 62a are aligned. At this time, the second telescopic portion 62a is arranged so that no gap is created between the second telescopic portion 62a and the second telescopic portion bracket 82.

After the second telescoping portion 62 is placed on the second telescoping portion bracket 82, the holding member 10 is inserted and fixed through the through hole 62b of the second telescoping portion 62 and the through hole of the second telescoping portion bracket 82. Furthermore, the telescopic part fixing member 7 is inserted into the through hole 82c formed in the upper part of the second telescopic part bracket 82, and is fixed so that the second telescopic part 62 does not move in the vertical direction.

Next, the support beam 4 is held between the first elastic part 61 and the second elastic part 62. First, the support beam 4 is slid, and the vertical surface of the support beam 4 is inserted into the gap formed between the opposing first elastic pieces 61a and the gap formed between the opposing second elastic pieces 62a. The web portion 4b is passed through.

Then, the combined length of the support beam 4 and the expandable portion 6, the position of the flange portion 4a of the support beam 4, etc. are adjusted to match the widths of the first hoistway wall 1a and the second hoistway wall 1b. After adjusting the positions and lengths of the support beam 4 and the telescopic section 6, the holding member 10 is inserted into the adjustment hole 6a of the telescopic section 6 and the through hole 4c formed in the web section 4b of the support beam 4, and the support beam 4 is fixed. 4 and the elastic part 6 are fixed. In this way, the support beam 4 is held between the first extendable part 61 and the second extendable part 62 from both sides in the width direction of the support beam 4, which is the depth direction of the hoistway 1. Note that the combined length of the support beam 4 and the telescopic section 6 and the position of the flange section 4a of the support beam 4 can be arbitrarily determined depending on the combination of the positional relationships of the support beam 4, the first telescoping section 61, and the second telescoping section 62. Adjustable. In this way, the support beam 4, the telescoping section 6, and the telescoping section bracket are assembled to form a structure.

After forming the structure, the first telescoping part bracket 81 to which the support beam 4 and the first telescoping part 61 are fixed is arranged on the top of the first support bracket 11. At the same time, a second telescoping part bracket 82 to which the support beam 4 and the second telescoping part 62 are fixed is arranged above the second support bracket 12 . Here, the structure is arranged such that the flange portion 4a of the support beam 4 is disposed in the vertical direction of the hoistway 1 with respect to the web portion 4b, that is, the flange portion 4a of the support beam 4 is arranged horizontally in the hoistway 1. arranged so that it is a surface.

Then, the fastening member 9 is inserted into the fastening hole 11d formed in the upper part of the first support bracket 11 and the fastening hole 81d formed in the lower part of the first telescoping part bracket 81, and the first telescoping part is inserted into the first support bracket 11. Fix the bracket 81. Similarly, the fastening member 9 is inserted into the fastening hole 12d formed in the upper part of the second support bracket 12 and the fastening hole 82d formed in the lower part of the second telescopic part bracket 82, and the fastening member 9 is inserted into the second support bracket 12. 2. Fix the telescopic part bracket 82. In this way, the lifting beam 100 is obtained by installing the structure on top of the first support bracket 11 and the second support bracket 12.

Here, since the support beam 4 is held and fixed by the telescopic part 6, by adjusting the fixing positions of the support beam 4 and the telescopic part 6, the width and shape of the hoistway 1 may differ depending on the installation site. Even if there is a lifting beam 100, the length of the lifting beam 100 in the longitudinal direction can be adjusted and installed. In this way, when assembling the lifting beam 100, the length of the lifting beam 100 can be adjusted, and if the entrance to the platform of the hoistway 1 is narrow, etc., the lifting beam 100 can be shortened and brought in. etc., and the workability of installing elevator equipment is improved. In addition, when adjusting the position, posture, etc. of the support bracket, it is sufficient to loosen the anchor bolt 3 and adjust the positions of the mounting holes 11b, 11c, 12b, and 12c of the support bracket.

Further, if the adjustment hole 6a of the first telescoping section 61 and the adjustment hole 6a of the second telescoping section 62 have an oval shape, even after the lifting beam 100 is placed in the hoistway 1, the lifting beam 100 The length can be adjusted. In this case, the holding member 10 inserted through the adjustment hole 6a may be loosened, the positional relationship between the support beam 4 and the telescopic portion 6 may be adjusted, and the holding member 10 may be tightened again. Further, the positional relationship between the support beam 4 and the extensible portion 6 is such that the length in the longitudinal direction of the lifting beam 100 is shorter than the width of the hoistway 1, and the support beam 4 is not fixed with the holding member 10 or is temporarily tightened. The structure may be placed in the hoistway 1, the positional relationship between the support beam 4 and the telescopic portion 6 may be adjusted, and the structure may be fixed with the holding member 10.

Then, as described above, when the support bracket, the telescoping part bracket, and the telescoping part 6 are made into separate structures and are fixed with the fastening member 9 and the holding member 10, respectively, the support bracket and the support beam 4 are integrated by welding or the like. You don't have to. Thereby, the support beam 4 and the expansion/contraction part 6 can be removed from the hoistway 1 and reused for installing another elevator device, and the operating cost can be reduced.

Next, an example of removing the lifting beam 100 according to the present embodiment from the hoistway 1 will also be described. First, the holding member 10 that fixes the first support bracket 11 and the first telescoping part bracket 81 and the holding member 10 that fixes the second support bracket 12 and the second telescoping part bracket 82 are loosened and removed, and the support beam 4, The structure having the telescoping section 6 and the telescoping section bracket is lowered from the support bracket. Then, remove the anchor bolts 3 from the first support bracket 11 and the second support bracket 12, remove the first support bracket 11 and the second support bracket 12 from the first hoistway wall 1a and the second hoistway wall 1b, The lifting beam 100 is removed from the hoistway 1. In this way, the lifting beam 100 can be easily removed from the hoistway 1 and can be reused for other lifting operations.

Moreover, when the lifting beam 100 is removed from the hoistway 1, the number of construction objects in the hoistway 1 increases compared to when the installation of the elevator apparatus is started. In this case, since the length of the lifting beam 100 is adjustable, if the lifting beam 100 is shortened, it can be easily transported, and the lifting beam 100 can be cut to avoid interference with other equipment to be transported. becomes unnecessary.

In this way, the first support bracket 11 is fixed to the first hoistway wall 1a, and the second support bracket 12 is fixed to the other second hoistway wall 1b. Then, the reinforcing rib 81a of the first telescoping part bracket 81 is held between the first telescoping part 61 extending in the first direction, which is the width direction of the hoistway 1, and the reinforcing rib 82a of the second telescoping part bracket 82 is , and held by the second stretchable portion 62 extending in the first direction. Furthermore, the web part 4b of the support beam 4 provided between the flange part 4a of the support beam 4 disposed above and below the first elastic part 61 and the second elastic part 62 is connected to the first elastic part 61 and the second elastic part 62. 2 is held between the elastic parts 62. Then, the first telescopic part bracket 81 and the second telescopic part bracket 82, which sandwich the support beam 4, are fixed above the first support bracket 11 and the second support bracket 12, respectively. In this way, a lifting beam 100 that can be lifted at any position can be obtained.

In this embodiment, an example in which the support beam 4 and the telescopic section 6 are made of an Al alloy such as super duralumin (A2024) has been described. Similarly, it may be made of an Al alloy such as super duralumin (A2024). In this way, transportation during the installation of the elevator apparatus and work for installing each member in the hoistway 1 become easier.

Further, in this embodiment, an example has been described in which the lifting beam 100 is attached to the hoistway 1 after a part of the lifting beam 100 is assembled. The heavy beam 100 may be assembled.

Furthermore, in the present embodiment, an example has been described in which the support beam 4 is inserted into and held between the first telescoping section 61 and the second telescoping section 62; The two second extensible pieces 62a may be fixed and clamped from both sides of the support beam 4 in the width direction of the hoistway 1, respectively. In this case, the support beam 4 is clamped and fixed between the telescopic parts 6, and the first telescopic part 61a and the second telescopic part 62a are connected to the reinforcing rib 81a of the first telescopic part bracket 81 and the second telescopic part bracket 82. The reinforcing ribs 82a may be clamped and fixed, respectively.

Embodiment 2.
FIG. 7 is a front view of the lifting beam 101 according to the second embodiment, and FIG. 8 is a plan view of the lifting beam 101 according to the second embodiment. Similarly to Embodiment 1, the lifting beam 101 according to the present embodiment includes first telescoping brackets fixed to the mutually opposing first and second hoistway walls 1a and 1b of the hoistway 1, respectively. 81 and the second telescopic part bracket 82, the first telescopic part 61 and the second telescopic part 62 fixed to the first telescopic part bracket 81 and the second telescopic part bracket 82, respectively, and the first telescopic part 61 and the second telescopic part 62 The support beam 4 includes a web portion 4b held between portions 62 and a flange portion 4a that is a surface on which other equipment can be placed. Embodiment 1 is different from the support beam 4 in that it further includes a hanger 5 having a hanger web part 5b held between an extensible part 6 and a hanger flange part 5a which is a surface on which other equipment can be placed. They differ in some respects. Components that are the same as those in Embodiment 1 are given the same reference numerals, and their descriptions will be omitted.

FIG. 9 is a perspective view showing the hanger 5 according to the second embodiment. As shown in FIG. 9, the hanger 5 has a hanger web portion 5b which is a vertical surface and a hanger flange portion 5a which is a horizontal surface. In the example of FIG. 9, the suspension flange portions 5a provided above and below the first elastic portion 61 and the suspension web portion 5b provided between these suspension flange portions 5a form a substantially H-shape. It is integrally formed with. Further, the suspension web part 5b is provided with through holes 5c arranged at intervals in the width direction of the hoistway 1. Here, the width of the suspension flange portion 5a (length in the vertical direction in FIG. 8) is greater than or equal to the width of the expandable portion 6.

The case where the hanging base 5 is held between the first elastic parts 61 will be explained as an example. As shown in FIGS. 7 and 8, the holding member 10 is inserted into the through hole 5c of the hanging web part 5b and the adjustment hole 6a of the first elastic part 61, and the hanging part 5 is fixed to the first elastic part 61. . Here, the position where the hanger 5 is fixed is closer to the first hoistway wall 1a than the support beam 4. Since a plurality of adjustment holes 6a of the first extensible portion 61 are arranged in the width direction of the hoistway 1, the fixing position of the hanger 5 can be selected as appropriate. Further, the number and position of the hanging bases 5 can be changed as appropriate depending on the type of lifting work. Note that in FIGS. 7 and 8 , the hanger 5 is fixed to the first elastic part 61 , but may be fixed to the second elastic part 62 . In this case, the hanger 5 is fixed closer to the second hoistway wall 1b than the support beam 4 is.

The suspension flange portion 5a is formed in a planar shape and is provided above and below the first expandable portion 61. In this way, other equipment can be placed on the top surface of the hanging base flange portion 5a, and other equipment can be placed on the bottom surface of the hanging base flange portion 5a at a location that protrudes from the extendable portion 6 in plan view. equipment can be hung. Moreover, since the fixed position of the hanging base 5 can be selected as appropriate, the position of the hanging base flange portion 5a in the hoistway 1 can also be made arbitrary. Furthermore, since the hanging base 5 is held between the first elastic parts 61 and the holding member 10 is inserted and fixed in the width direction of the hoistway 1, the hanging base 5 is held in place by the holding member 10 and other parts in the vertical direction of the hanging base 5. There is no interference with equipment, and there are no restrictions on where it can be lifted.

When arranging the hanging base 5 in the first elastic part 61, in the process of arranging the support beam 4 in the elastic part 6, the support beam 4 is arranged in the gap between the opposing first elastic parts 61a, and the suspension web part 5b is slid and placed in the gap between the opposing first elastic pieces 61a and fixed by the holding member 10. Similarly, when arranging the hanging base 5 in the second elastic part 62, the hanging base web part 5b is slid and arranged in the gap between the opposing second elastic parts 62, and is fixed by the holding member 10. In this case, the hanger 5 may be arranged so that the planar hanger flange portion 5a forms a horizontal surface in the hoistway 1.

FIG. 10 is an explanatory diagram illustrating lifting work according to the second embodiment. As shown in FIG. 10, the number and fixing position of the hanging bases 5 can be freely changed depending on the width of the hoistway 1, the number of lifting points, etc. If the hanging base 5 is provided, the hook 20 may be suspended from the hanging base flange portion 5a below the hanging base 5, thereby making it possible to lift the load even in a position where there is no support beam 4. In addition, by appropriately increasing or decreasing the number of hangers 5 depending on the width of the hoistway 1, it becomes possible to accommodate hoistways 1 of various widths. Furthermore, even if other equipment such as a beam 30 is placed on the support beam 4 as shown in FIG. It becomes possible to lift the weight using the hanging base 5 at this position.

In this way, the lifting beam 101 is further provided with the hanging base 5 having the hanging base web part 5b arranged in the gap of the extensible part 6 and the hanging base flange part 5a which is a surface on which other equipment can be placed. With this, it is possible to lift at any position on the lifting beam 101, and other equipment can be lifted not only at the support beam 4 but also at the hanging base 5, which makes it easier to install the elevator equipment. Improves work efficiency.

Embodiment 3.
FIG. 11 is a front view of the lifting beam 102 according to the third embodiment. Similarly to Embodiment 1, the lifting beam 102 according to the present embodiment includes first telescoping brackets fixed to the mutually opposing first and second hoistway walls 1a and 1b of the hoistway 1, respectively. 81 and the second telescopic part bracket 82, the first telescopic part 61 and the second telescopic part 62 fixed to the first telescopic part bracket 81 and the second telescopic part bracket 82, respectively, and the first telescopic part 61 and the second telescopic part 62 The support beam 4 includes a web portion 4b held between portions 62 and a flange portion 4a that is a surface on which other equipment can be placed. This embodiment differs from the first embodiment in that the support bracket has an upper part, side parts, and a lower part. Components that are the same as those in Embodiment 1 are given the same reference numerals, and their descriptions will be omitted.

The support bracket includes a first support bracket 21 and a second support bracket 22. The first support bracket 21 is fixed to the first shaft wall 1a, and the second support bracket 22 is fixed to the second shaft wall 1b. The first support bracket 21 has a planar upper part extending in the direction toward the second hoistway wall 1b, that is, in the width direction of the hoistway 1, on which the first telescoping bracket 81 is disposed, and a first hoistway wall 1b. It is formed into a substantially C-shape by a side portion fixed to the road wall 1a and a planar lower portion that faces the upper portion and extends in the direction toward the second hoistway wall 1b.

The second support bracket 22 also has a planar upper part extending in the direction toward the first hoistway wall 1a, that is, in the width direction of the hoistway 1, on which the second telescoping part bracket 82 is disposed, and a flat upper part extending in the width direction of the hoistway 1. It is formed into a substantially C-shape by a side portion fixed to the second hoistway wall 1b and a planar lower portion that faces the upper portion and extends in the direction toward the first hoistway wall 1a. Here, the lower portions of the first support bracket 21 and the second support bracket 22 are arranged horizontally with respect to the hoistway 1.

Furthermore, the first support bracket 21 is provided with reinforcing ribs 21a adjacent to the top, side, and bottom, and the second support bracket 22 is provided with reinforcing ribs 22a adjacent to the top, side, and bottom. is provided. Furthermore, the lengths of the lower portions of the first support bracket 21 and the second support bracket 22 in the depth direction of the hoistway 1 are approximately the same as the lengths of the flanges of the support beams 4 in the depth direction of the hoistway 1, respectively. In this way, equipment such as the hook 20 can be hung from the lower part of the first support bracket 21 and the second support bracket 22, and the equipment such as the hook 20 can be hung from the lower part of the first support bracket 21 and the second support bracket 22. Lifting is possible even in the vicinity.

Here, the first support bracket 21 is provided with a fastening hole (not shown) in the upper part through which the fastening member 9 can be inserted, and by inserting the fastening member 9 into this fastening hole, the first support bracket 21 and the first telescopic portion bracket 81 are fixed. Similarly, the second support bracket 22 is provided with a fastening hole (not shown) in the upper part through which the fastening member 9 can be inserted. The bracket 22 and the second telescopic part bracket 82 are fixed.

The first support bracket 21 and the second support bracket 22 are arranged such that their upper surfaces are at approximately the same height. Further, the first support bracket 21 and the second support bracket 22 are provided with anchor bolts 3 inserted into mounting holes (not shown) provided on their respective sides, so that the first support bracket 21 and the second support bracket 22 are connected to the first hoistway wall 1a and the second hoistway wall 1a. Each is fixed to the wall 1b.

In this way, the first support bracket 21 and the second support bracket 22 of the lifting beam 102 are arranged so that the upper part on which the telescoping part bracket is arranged faces the first hoistway wall 1a or the second hoistway wall 1b, respectively. By forming the side part parallel to the upper part and the lower part parallel to the upper part, the lifting beam 102 can be lifted at any position, and not only the support beam 4 but also the first support bracket 21 and the second support bracket 22 can be lifted. Since other equipment such as the hook 20 can be hung from the lower part of the elevator system, the workability of installing the elevator system is improved.

In addition, in this embodiment, regarding an example in which the first support bracket 21 and the second support bracket 22 provided on the first hoistway wall 1a and the second hoistway wall 1b, respectively, have an upper part, a side part, and a lower part. As described above, depending on the type of lifting work, one may be the first support bracket 21 having an upper part, side parts, and a lower part, and the other may be the second support bracket 12 described in the first embodiment. Alternatively, one may be the first support bracket 11 described in Embodiment 1, and the other may be the second support bracket 22 having an upper part, side parts, and a lower part.

Further, each embodiment disclosed in this specification can be freely combined within its scope, and each embodiment can be modified or omitted as appropriate. .

1 Hoistway, 1a First hoistway wall, 1b Second hoistway wall, 3 Anchor bolt, 4 Support beam, 4a Flange portion, 4b Web portion, 4c, 5c, 61b, 62b, 81b, 81c, 82b, 82c Penetration Hole, 5 Hanging base, 5a Hanging base flange portion, 5b Hanging base web portion, 6 Expandable portion, 6a Adjustment hole, 7 Expandable portion fixing member, 9 Fastening member, 10 Holding member, 11, 21 First support bracket, 12, 22 Second support bracket, 11a, 12a, 21a, 22a, 81a, 82a Reinforcement rib, 11b, 11c, 12b, 12c Mounting hole, 20 Hook, 21b, 21c, 22b, 22c Mounting hole, 11d, 12d, 81d, 82d fastening hole, 30 beam, 61 first elastic part, 61a first elastic part, 62 second elastic part, 62a second elastic part, 81 first elastic part bracket, 82 second elastic part bracket, 100, 101, 102 Lifting beam.

Claims (11)

a first telescoping bracket fixed to one first hoistway wall of mutually opposing hoistway walls of the elevator hoistway ;
a first telescoping portion fixed to the first telescoping portion bracket and extending toward the other second hoistway wall of the hoistway walls ;
A support beam having a planar flange portion provided above and below the first expandable portion and a web portion provided between the upper and lower flange portions,
The web portion is a lifting beam in which the first hoistway wall side is held between the first telescopic portions. a second telescoping bracket fixed to the second hoistway wall;
further comprising a second telescoping portion fixed to the second telescoping portion bracket and extending toward the first hoistway wall;
The flange portion is provided above and below the second expandable portion,
The web portion is sandwiched by the second telescopic portion on the second hoistway wall side.
The lifting beam according to claim 1, characterized in that: a first support bracket having a side portion secured to the first hoistway wall and an upper portion extending toward the second hoistway wall;
further comprising a second support bracket having a side portion fixed to the second hoistway wall and an upper portion extending toward the first hoistway wall;
the first telescoping bracket is fixed on the first support bracket;
The lifting beam according to claim 2 , wherein the second telescoping bracket is fixed on the second support bracket. The first support bracket has two mounting holes on the side, and a holding member is inserted into the mounting holes and fixed to the first hoistway wall,
Claim 3 , wherein one of the mounting holes is formed in an elliptical shape with a long axis in the lateral direction, and the other is formed in an elliptic shape with a long axis in a direction different from the lateral direction. Lifting beam described in. The first support bracket is formed of an upper part, a side part facing the first hoistway wall, and a planar lower part facing the upper part and extending toward the second hoistway wall. The lifting beam according to claim 3 or claim 4 . The first telescoping part bracket has an upper part provided above the first telescoping part,
The second telescoping part bracket has an upper part provided above the second telescoping part,
The first telescopic part has an end fixed to the first telescopic part bracket fixed by a telescopic part fixing member inserted through an upper part of the first telescopic part bracket,
A claim characterized in that the end of the second telescoping part on the side fixed to the second telescoping part bracket is fixed by a telescoping part fixing member inserted through an upper part of the second telescoping part bracket. The lifting beam according to any one of claims 2 to 5 . a planar suspension flange fixed to the first hoistway wall side relative to the support beam and provided above and below the first telescoping section; Any one of claims 1 to 6 , further comprising a hanger having a hanger web part provided between the hanger flange parts and held by the first elastic part. Lifting beams as described in Section. The first elastic part and the second elastic part are provided with oval adjustment holes having long axes in the extending direction of the first elastic part and the second elastic part, which are spaced apart from each other. ,
According to any one of claims 2 to 6, the support beam is fixed by a holding member inserted through the adjustment holes of the first telescoping section and the second telescoping section. lifting beam. fixing a first support bracket to a first hoistway wall of one of mutually opposing hoistway walls of the elevator hoistway;
sandwiching the reinforcing ribs of the first telescoping part bracket between the first telescoping parts extending in a first direction that is the width direction of the hoistway;
sandwiching a web part of the support beam between the flange parts of the support beam disposed above and below the first stretchable part, between the first stretchable part;
fixing the first telescoping part bracket holding the support beam above the first support bracket;
A method for manufacturing a lifting beam equipped with. fixing a first support bracket to one first hoistway wall of mutually opposing hoistway walls of the elevator hoistway, and fixing a second support bracket to the other second hoistway wall;
sandwiching the reinforcing ribs of the first telescoping part bracket between the first telescoping parts extending in a first direction that is the width direction of the hoistway;
sandwiching the reinforcing ribs of the second telescoping part bracket between the second telescoping parts extending in the first direction;
A web portion of the support beam provided between the flange portions of the support beam disposed above and below the first expandable portion and the second expandable portion is connected to the first expandable portion and the second expandable portion. a clamping step;
A method for manufacturing a lifting beam, comprising the step of fixing the first telescopic part bracket and the second telescopic part bracket, which sandwich the support beam, above the first support bracket and the second support bracket, respectively. further comprising the step of sandwiching a hanging web part provided between the hanging flange parts of the hanging hanging part having planar hanging flange parts provided above and below the first elastic part with the first elastic part; The method for manufacturing a lifting beam according to claim 9 or 10, comprising:

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