JP2012025581A - Elevator - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an elevator, which can reduce the sectional area of a hoistway even if a winch is installed in the hoistway.SOLUTION: A pair of guide rails 2a and 2b for a cage and a pair of deflector wheels 8a and 8b for a cage are arranged each diagonally in a plan view to the cage 3 so that each other's diagonals may cross each other, and besides a balancing weight 6 is arranged closely to the side of the cage 3, and the winch 4 is installed above the uppermost stop floor of the cage 3. By structurizing it this way, a space is secured at the side of the cage 3. Therefore, a hoisting space for the balancing weight 6 can be formed by making use of the space, consequently the balancing weight 6 can be installed in close proximity to the side of the cage 3. Therefore, the sectional area of the hoistway can be made small by reducing the space between the cage 3 and the wall 1W of the hoistway 1 by that amount.

Description

  The present invention relates to an elevator, and more particularly to an elevator in which a hoisting machine is installed in a hoistway.

  In general, an elevator in which a hoisting machine is installed in a hoistway is guided by a pair of car guide rails 2a and 2b installed upright supported by a fixing member in the hoistway 1 as shown in FIG. A car 3 that moves up and down, a hoisting machine 4 installed on the bottom side of the hoistway at a position adjacent to the car 3 in a plane, and a hoisting machine 4 and a wall 1W of the hoistway 1 are set up between A counterweight 6 that is guided by a pair of provided weight guide rails 5a and 5b and moves up and down, and a main rope that is driven by hanging the counterweight 6 and the car 3 and being wound around the hoisting machine 4. 7.

  The car cages 8a and 8b are pivotally supported on the car 3 at positions where they do not interfere with the car guide rails 2a and 2b, and the main rope 7 is wound around the car 3. On the other hand, the hoisting machine 4 has an electric motor 9 and a driving sheave 10 driven by the electric motor 9, and the main rope 7 is wound around the driving sheave 10. Further, a weight baffle 11 is pivotally supported on the upper portion of the counterweight 6, and the main rope 7 is wound around it.

  In such a configuration, by driving the hoisting machine 4 and driving the main rope 7, the car 3 is guided by the car guide rails 2 a and 2 b to rise (or descend) and the counterweight 6 Is lowered (or raised) while being guided by the weight guide rails 5a and 5b.

  Incidentally, Patent Document 1 exists as related technology.

JP 2004-352377 A

  In the conventional elevator, the car sloping cars 8a and 8b that are pivotally supported on the bottom side of the car 3 greatly project from the vertical projection surface of the car 3 in a plan view. The hoisting machine 4 must be installed so as not to interfere, and the counterweight 6 also needs to be arranged so as to move up and down at a position where it does not interfere with the hoisting machine 4.

  For this reason, a large hoisting space for the counterweight 6 is required between the elevator car 1 and the wall 1W of the hoistway 1 on the counterweight 6 side, which increases the hoistway cross-sectional area.

  The objective of this invention is providing the elevator which can reduce a hoistway cross-sectional area even if it installs a winding machine in a hoistway.

  In order to achieve the above object, the present invention has a pair of car guide rails arranged in a plane substantially diagonally with respect to a car, and a car sledding car pivotally supported on the car bottom side is used as a car guide rail. The space for raising and lowering the counterweight is arranged between the diagonal car and the guide rail for the car. Furthermore, the hoisting machine is installed so that the vertical projection plane overlaps with the car on the balance weight side above the car deflection car on the counterweight side and above the highest stop floor of the car.

  With this configuration, a space is secured on the side of the car, so that the space for lifting and lowering the counterweight can be formed using the space, and as a result, the side of the car can be approached. Since the counterweight can be installed, the space between the elevator car and the hoistway wall can be reduced by that amount to reduce the hoistway cross-sectional area.

  As described above, according to the present invention, it is possible to obtain an elevator capable of reducing the hoistway cross-sectional area even if a hoisting machine is installed in the hoistway.

Sectional drawing which shows embodiment of the elevator by this invention. The schematic side view which shows embodiment of the elevator by this invention. The equivalent figure of FIG. 1 which shows the conventional elevator.

  Hereinafter, an embodiment of an elevator according to the present invention will be described with reference to FIGS. 1 and 2. Note that the same reference numerals as those in FIG. 3 indicate the same parts, and thus detailed description thereof is omitted. However, in the present embodiment, the arrangement of the devices installed in the hoistway 1 is greatly different from the elevator of FIG.

  First, the first point is that the pair of car guide rails 2a and 2b are arranged so as to face substantially diagonal lines of the car 3, and are fixed to the wall 1W of the hoistway 1 via the brackets B1 and B2. Next, the pair of car deflecting wheels 8a and 8b that are pivotally supported on the bottom side of the car 3 are opposed to the diagonal lines of the car 3 so as to intersect the diagonal lines of the car guide rails 2a and 2b in a plane. It is arranged to do.

  In this way, for the car 3, the line connecting the pair of car guide rails 2a, 2b and the line connecting the pair of car sled wheels 8a, 8b are car guide rails 2a, 2b and By arranging the car sloping cars 8a and 8b, that is, diagonally arranged so that the lines intersect each other in a plane, the car guide rail 2a on the side of the car and the car sloping car 8a And a space was positively formed between the car guide rail 2b and the car deflecting wheel 8b.

  The second point is that, in these spaces, a space for raising and lowering the counterweight 6 is formed in a space between the car guide rail 2a on the side where the counterweight 6 is installed and the car deflecting wheel 8a.

  Specifically, weight guide rails 5a and 5b are fixed to a wall 1W of the hoistway 1 via a bracket B3 in a space between the car guide rail 2a and the car deflecting wheel 8a. The counterweight 6 is moved up and down along 5a and 5b.

  The third point is that the hoisting machine 4 is placed in the hoistway 1 via the cross beam 12 above the uppermost stop floor of the car 3 so that the driving sheave 10 is positioned directly above the car deflecting wheel 8a. It was installed.

  With the configuration as described above, the hoisting machine 4 is positioned in the upper part of the hoistway 1 in plan view, and the counterweight 6 is positioned in the space between the car guide rail 2a and the car deflector 8a. Therefore, compared with FIG. 3, the counterweight 6 can be made to approach the side part of the cage | basket | car 3 planarly. As a result, the space between the side of the car 3 on the counterweight 6 side and the wall 1W of the hoistway 1 can be reduced, and the cross-sectional area of the hoistway can be reduced as compared with FIG.

  At this time, by installing the hoisting machine 4 so that the vertical projection surface overlaps with the car 3, the amount of protrusion of the car sloping cars 8a and 8b from the car can be easily suppressed, and the hoistway The cross-sectional area can be easily reduced. Further, when the hoisting machine 4 is maintained on the car, the vertical projection surface of the hoisting machine 4 overlaps the car 3, so that the maintenance work can be easily performed.

  Since the distance between the pair of weight guide rails 5a and 5b for guiding the counterweight 6 is set in the space between the car guide rail 2a and the car deflecting wheel 8a, the balance is reduced accordingly. In such a case, the weight of the weight 6 is reduced. In such a case, the length of the counterweight 6 is increased or the thickness of the counterweight 6 is increased depending on the design of the elevator. Can be secured.

  In the present embodiment, in particular, the car sloping cars 8a and 8b that are pivotally supported on the bottom side of the car 3 are diagonally arranged to avoid interference with other equipment. Even if the deflection wheels 8a and 8b have a large diameter, there is no increase in the cross-sectional area of the hoistway.

  Furthermore, although the hoisting machine 4 is installed at the top of the hoistway 1, there is no problem because it can be carried out by working on the ceiling of the car 3 during maintenance inspection.

  Thus, in this Embodiment, the hoisting machine 4 can be installed in the hoistway 1, and the elevator which can reduce further hoistway cross-sectional area can be obtained.

  Incidentally, in the above embodiment, as shown in FIG. 1, the car guide rails 2a, 2b and the car sloping cars 8a, 8b are paired in the depth direction dimension L as viewed from the entrance / exit 3K of the car 3. The counterweight is reduced to bring the counterweight 6 closer to the car 3 side by reducing the hoistway cross-sectional area.

  However, the present invention is not limited to the diagonal arrangement described above, and the car guide rails 2a and 2b and the car sloping cars 8a and 8b are arranged diagonally within the widthwise dimension W when viewed from the entrance / exit 3K of the car 3. You may let them. However, in this case, a space for installing the car guide rails 2a and 2b and the car sloping cars 8a and 8b must be secured between the car 3 and the hoistway 1 in the depth direction. The depth dimension of the hoistway 1 will be increased. However, since the width of the counterweight 6 can be approached to the car 3 while maintaining the width as shown in FIG. 3, the hoistway cross-sectional area is reduced as a result.

  DESCRIPTION OF SYMBOLS 1 ... Hoistway, 2a, 2b ... Car guide rail, 3 ... Riding car, 4 ... Hoisting machine, 5a, 5b ... Guide rail for weight, 6 ... Counterweight, 7 ... Main rope, 8a, 8b ... For car Baffle wheel, 9 ... electric motor, 10 ... drive sheave, 11 ... baffle for weight, 12 ... transverse beam.

Claims (4)

  A pair of car guide rails erected in the hoistway, a car guided by these car guide rails, and a pair of car sled wheels pivotally supported by the car, and the hoistway A pair of weight guide rails erected in the inside, a balance weight that is guided by the weight guide rails to move up and down, and a main rope that suspends the balance weight and suspends the car via a car sloping car And an elevator equipped with a hoisting machine that is installed in the hoistway and is driven by winding the main rope, the pair of car guide rails and the pair of car slurries are arranged so that their diagonal lines are planar. Are arranged diagonally with respect to the car so as to intersect the car, and the counterweight is arranged close to the side of the car, and the hoisting machine is stopped at the top of the car. Installed above the floor Elevator, characterized in that was.   A pair of car guide rails erected in the hoistway, a car guided by these car guide rails, and a pair of car sled wheels pivotally supported by the car, and the hoistway A pair of weight guide rails erected in the inside, a balance weight that is guided by the weight guide rails to move up and down, and a main rope that suspends the balance weight and suspends the car via a car sloping car And an elevator equipped with a hoisting machine installed in the hoistway and driven by winding the main rope, the pair of car guide rails and the pair of car sleds within the dimension in the depth direction of the car The car is arranged diagonally with respect to the car so that the diagonal lines cross each other in a plane, and the diagonally arranged one side of the car sled car and the guide rail for the car Counterweight between Forming a lift space, further, the elevator, characterized in that installed above the car top stop floor multiply the hoist.   3. The elevator according to claim 2, wherein the counterweight is formed to have a length in a vertical direction corresponding to a decrease in a distance between weight guide rails installed in the hoistway space.   3. The elevator according to claim 2, wherein the counterweight is formed to have a thickness that is thicker than a distance between weight guide rails installed in the hoistway space.

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