JPH0537853U - Elevator basket hanging structure - Google Patents

Abstract

(57) [Summary] [Structure] A car 1 arranged to be movable up and down in a hoistway 2 of a building, one end of which is fastened to both side surfaces of the car 1 and the other end of which is fastened to a counterweight. A pair of ropes 6, an overhead beam 8 and 9 arranged above the hoistway and outside the horizontal projected area 7 of the car, and a pair of ropes provided on the overhead beams 8 and 9 to which the pair of ropes are hung. And sheaves 10, 11, 12, and 13. [Effect] The dead space existing between the overhead beam and the top wall of the building and the height from the car ceiling to the support frame can be omitted. Therefore, the top wall surface 21 of the building can be lowered by the amount by which the dead space is omitted, and it is possible to meet the request to lower the height of the building as much as possible while conforming to the building standards.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to an elevator car suspension structure for suspending an elevator car in a hoistway of a building.

[0002]

[Prior Art]

 Conventional linear motor elevators include those shown in FIGS. 3 and 4. In FIG. 3, reference numeral 101 is a car that is vertically movable in a hoistway of a building, and one end of a rope 103 is fastened to the upper surface of a support frame 102 provided in the car 101. There is. One end of the rope 103 is hooked on sheaves 106 and 107 supported by an overhead beam 105 arranged in the horizontal projected area 104 of the car 101 above the hoistway, and the other end is provided inside the hoistway. It is fixed to the mover 108a of the linear motor 108.

By the way, when carrying out maintenance / inspection of the elevator, a maintenance person puts it on the ceiling portion 101 a and the support frame 102 of the car 101 to perform the work. As described above, since a person may be placed on the ceiling portion 101a of the car 101 and the support frame 102, the support frame 102 and the overhead beam 105 arranged above the hoistway 110 as shown in FIG. It is legally stipulated that a predetermined top clearance TC be provided between these spaces.

[0004]

[Problems to be solved by the device]

However, in such a conventional elevator car suspension structure, the rope 103 fixed to the upper surface of the supporting frame 102 is hung on the sheave 106, which is directly above the car 101. Since it is provided on the overhead beam 105 located within the projected area 104, the top clearance TC must be from this overhead beam 105 to the support frame 102 of the car 101 below. Therefore, there is a dead space DS between the overhead beam 105 and the top wall surface 109 of the building. Further, since the rope 103 is fixed to the car support frame 102, a predetermined height H ₁ is required between the car ceiling portion 101a and the support frame 102. Therefore, Nakere high comb only dead space DS and the height and the car supporting lifting frame 102 Toka total height of the minute H ₂ of the height H ₁ between the rear ceiling portion 101a of the overhead beam 105 from the ceiling portion 1 01a building In addition, there was a problem that it was not possible to meet the demand for making the height of the building as low as possible while conforming to the building standards.

The present invention relates to a car suspension structure for an elevator capable of omitting a dead space and lowering a top wall of a building.

[0006]

[Means for Solving the Problems]

 In order to achieve such an object, according to the present invention, a car arranged so as to be vertically movable in a hoistway of a building, one end of which is fixed to both side surfaces of the car and the other end of which is a counterweight. A pair of ropes fastened to each other, an overhead beam arranged above the hoistway and outside the horizontal projection area of the car, and a sheave on which the pair of ropes are hung. And a configuration including.

[0007]

[Action]

 An overhead beam is installed above the hoistway.Since this overhead beam is located outside the horizontal projected area of the car, the top clearance that needs to be installed above the ceiling of the car is It can be provided between the top wall surface. For this reason, the dead space, which used to exist between the overhead beam and the top wall of the building, will be omitted.

[0008]

【Example】

 Hereinafter, the present invention will be described with reference to the drawings. 1 and 2 are views showing an embodiment of an elevator car suspension structure according to the present invention.

In FIG. 1, reference numeral 1 is a car that moves up and down along a guide rail 3 provided upright in a hoistway 2 (shown in FIG. 2) of a building. The car 1 has conventionally been provided with a support frame. In addition to the support frame 4, a suspension frame 5 that passes through the center of gravity of the car 1 and projects on both sides from the left and right side surfaces of the car 1 is fixed below the floor of the car 1. Has been done. The ends of the pair of ropes 6a and 6b are respectively fastened to the portions of the suspension frame 5 projecting from the floor surface of the car 1 to both sides.

Above the hoistway 2, a pair of overhead beams 8 and 9 are arranged outside the horizontal projected area 7 of the car 1 and on both sides of the entrance / exit 1 a of the car 1. Each of the over head beams 8 and 9 has a structure in which two C-shaped steels are arranged side by side, and gaps 8a and 9a are formed between the C-shaped steels so that the rope 6 can be inserted therethrough. Sheaves 10, 11, 12, and 13 are rotatably supported on the upper and lower sides of the overhead beams 8 and 9, respectively. An overhead beam 13 is also provided outside the horizontal projected area 7 of the car 1 and behind the doorway 1a. The overhead beam 13 is also made of two C-shaped steels and has a gap 13a between them. 14 and 15 are rotatably supported.

A pair of ropes 6a, 6b, one end of which is fixed to both ends of the suspension frame 5, pass through the gaps 8a, 9a of the overhead beams 8, 9 and are hung on the sheaves 10, 11, 12, 13. Further, it is hung on the sheaves 14 and 15 through the gap 13 a of the overhead beam 13 and fixed to the linear motor 16.

The linear motor 16 includes a mover 17 as a primary conductor having a through hole, and a stator 18 as a column-shaped secondary conductor penetrating the through hole of the movable element 17. The other end of the rope 6 is fixed to the mover 17. The stator 18 extends vertically in the hoistway 2 of the building, and its upper side and lower side are fixed to the building, respectively. The mover 17 is provided with a counterweight 20 for maintaining the balance with the car 1 through the frame 19. The weight of the counterweight 20 including the mover 17 is the weight of the car 1 and the rated load of the elevator. It is set to a total weight of half the weight.

Although overhead beams 8 and 9 are disposed above the hoistway 2, since these overhead head beams 8 and 9 are located outside the horizontal projected area 7 of the car 1, the overhead beams 8 and 9 are not shown in FIG. The top clearance TC that needs to be provided above the ceiling portion 1b of the car 1 as shown in FIG. For this reason, the dead space existing between the overhead beam and the top wall of the building and the height from the ceiling of the car to the supporting frame are omitted. Therefore, the top wall surface 21 of the building can be lowered by the amount of the dead space and the height from the car ceiling portion to the support frame omitted.

[0014]

[Effect of the device]

 As described above, according to the present invention, since the overhead beam is arranged above the hoistway of the building and outside the horizontal projected area of the car, the dead beam existing between the overhead beam and the top wall of the building in the related art is The space and height from the car ceiling to the support frame can be omitted. Therefore, the top wall of the building can be lowered by the amount by which the dead space and the like are omitted, and it is possible to meet the request to lower the height of the building as much as possible while conforming to the building standards.

[Brief description of drawings]

FIG. 1 is a perspective view showing an embodiment of an elevator car suspension structure according to the present invention.

FIG. 2 is a schematic sectional view of the car suspension structure.

FIG. 3 is a perspective view showing a conventional car lifting structure for an elevator.

FIG. 4 is a schematic sectional view of the car suspension structure.

[Explanation of symbols]

1 ... Basket, 2 ... Hoistway, 5 ... Suspension frame, 6 ... Rope, 7 ... Horizontal projected area, 8, 9 ... Overhead beam, 10, 11, 12, 13 ... Sheave.

Claims (1)

[Scope of utility model registration request] 1. A basket arranged so as to be movable up and down in a hoistway of a building, a pair of ropes having one end fastened to both side surfaces of the car and the other end fastened to a counterweight, and the hoistway. A car suspension structure for an elevator, comprising: an overhead beam arranged above the horizontal projection area outside the horizontal projection area of the car; and a sheave provided on the overhead beam and on which the pair of ropes are hung.