JPH0791007B2 - Elevator installation equipment - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial field of application] The present invention relates to an improvement of an installation device used for installation work of an elevator.

[Prior Art] FIG. 4 is a vertical cross-sectional view of a hoistway showing an elevator installation device that has been conventionally used.

In FIG. 4, 1 is a hoistway, 2 is a hoistway wall, 2 is a scaffold provided on the uppermost floor of the hoistway 1, 4 is an arm-type suspension beam, and 4 a is a longitudinal direction of the suspension beam 4. Mounting holes provided at predetermined intervals. The suspension beam 4 is pivotally supported in the U-shaped frame 10 by a bolt 12 so as to be rotatable in the front-rear direction, and the frame 10 supports the scaffold 3 of the hoistway wall 2.
It is attached to a mounting member 11 fixed further upward by an anchor bolt 14 by a stepped pin 13 so as to be horizontally rotatable in the left-right direction. Pulley 5 in mounting holes 4a, 4a of suspension beam 4
a and 5b are attached by pivot bolts 8 and 9 via support metal fittings 6 and 7. Suspension fittings 15 are fixed to the upper corners of the hoistway wall 2 above the mounting fittings 11 by anchor bolts,
One end of the chain 16 is connected to the hanging fitting 15, and the other end of the chain 16 is connected to the support 7 of the pulley 5b attached to the free end of the hanging beam 4. A winch rope 17, which is a wire rope wound around an electric winch (not shown), is hung on the pulleys 5a and 5b, and an elevator hoistway device such as a guide rail 19 is attached to a tip end of the rope 17 via a shackle 18. Is attached and is configured to be lifted by the rope 17.

Next, the use of this installation device will be described. The mounting bracket 11 is fixed to the hoistway wall 2 with anchor bolts 14 using the scaffold 3, the frame 10 is rotatably mounted to the mounting bracket 11 with the stepped pin 13, and the base end of the suspension beam 4 is attached to the frame 10. By pivotally mounting the suspension beam 4 by means of the pivot bolt 12, the base end portion of the suspension beam 4 can be swung horizontally in the horizontal direction through the vertical axis, and the elevation angle can be changed through the horizontal axis.
Attach to. Select the mounting hole 4a of the suspension beam 4 at the optimum position with respect to the suspension core at the lifting position of the guide rail 19, and attach the pulley 5b to the mounting hole 4a with the pivot bolt 9.
Chain the support tool 7 to the hanging metal fitting 15 attached to the hoistway wall 2.
By connecting with 16 and adjusting the length of the chain 16, the tip end of the suspension beam 4 is moved in the front-rear direction and fixed so that the pulley 5b is arranged at the optimum position for lifting the guide rail 19. To do.

Next, the pulley 5a is attached to the suspension beam 4 at an arbitrary position with the pivot bolt 8, and the rope 17 is passed through the grooves of the pulleys 5a and 5b while rotating the electric winch, and is hung on the pulleys 5a and 5b.
Lift the guide rail 19 through 18.

[Problems to be Solved by the Invention] The elevator installation device previously proposed by the applicant is configured as described above, and the chain and the pulley are attached to an integral support fitting, and the support fitting is pivotally supported on the suspension beam. Since it is attached with bolts, when intermittent movement of the electric winch is performed when lifting the guide rail, etc., the chain side and the pulley side alternately move up and down around the pivot bolt, that is, a seesaw movement is caused, There is a problem that the hanging beam sways like a dance and the hanging center moves each time, and it is not possible to safely lift the equipment in the hoistway such as the guide rail.

The present invention has been made to solve the above problems, and an object of the present invention is to obtain an elevator installation device that can safely lift hoistway equipment such as guide rails.

[Means for Solving the Problem] An elevator installation device according to the present invention has a support tool for connecting chains to a suspension beam and a support fitting for supporting a pulley, and supports both. The metal fittings are rotatably engaged and attached to the same attachment hole of the suspension beam by pivot bolts.

[Operation] In the elevator installation device according to the present invention, since the chain support fitting and the pulley support fitting are separate bodies, the movement due to the tension of the chain and the movement of the pulley due to the tension of the rope of the electric winch interfere with each other. It is possible to prevent the suspension beam from swaying and the suspension center from moving by separately acting on the suspension beam via the pivot bolts without doing so.

[Embodiment] An embodiment of the present invention will be described below with reference to FIGS.

In FIGS. 1 to 3, the same reference numerals as those in FIG. 4 indicate corresponding parts, 20 is a supporting member for the pulley 5b, 21 is a supporting member for the chain 16, and these supporting members 20, 21 are common pivots. The support bolts 9 are rotatably attached to the attachment holes 4a at the tip of the suspension beam 4 independently of each other. Reference numeral 22 is a stopper fixed to the support fitting 20 of the pulley 5b. The stopper 22 separates the pulley 5b from the suspension beam 4 when the inclination angle of the suspension beam 4 with respect to the horizontal plane becomes a predetermined angle θ (see FIG. 2) or more. The slant surface 22a of the stopper 22 abuts on the suspension beam 4 when the suspension beam 4 is inclined by a predetermined angle θ or more.
22a is fixed to the support fitting 20 so as to be separated from the suspension beam 4. Reference numerals 23 and 23 denote engaging fittings for engaging the supporting fittings 20 and 21 with each other so that they can rotate relative to each other and attaching them to the suspension beam 4. The engaging fittings 23 and 23 have a flange fixed to the supporting fitting 21. The cylinder shaft is attached to the pivot bolt 9 and the support fitting 20.
The support fitting 20 and the support fitting 21 are slid into the mounting holes 4a of the suspension beam 4 in an engaged state so that the support fittings 20 and the support fittings 21 are positioned, and then the pivot bolts 9 are It can be pivotally supported on the suspension beam 4 by means of a nut 24 screw-fitted at its tip. The structure of this embodiment other than that described above is the same as that of the installation apparatus shown in FIG.

In order to use the installation apparatus of this embodiment, the base end portion of the suspension beam 4 can be swung horizontally in the horizontal direction via the vertical axis and in the same manner as that shown in FIG. And attach it to the mounting bracket 11 so that the elevation angle can be changed. And
Select the mounting hole 4a at the optimum position for the lifting core of the lifting position of the guide rail 19, engage the support fitting 20 and the support fitting 21 in this mounting hole 4a, and use the pivot bolt 9 and the nut 24 to pull the pulley. By attaching the chain 5b and the chain 16 and adjusting the length of the chain 16 connected to the hanging fitting 15, the pulley 5b is arranged at an optimum position for lifting the guide rail 19. Also,
Similar to the one shown in FIG. 4, the pulley 5a is attached to the suspension beam 4, the rope 17 is hung on the pulleys 5a and 5b, the guide rail 19 is connected by the shackle 18, and this is lifted.

Further, in this embodiment, even if the angle of inclination of the suspension beam 4 with respect to the horizontal plane becomes large, the stopper 22 fixed to the support fitting 21 abuts the suspension beam 4 when the angle is equal to or larger than the predetermined angle θ, so that the pulley 5b is in the free state. Therefore, the rope 17 can be supported and the smooth rotation can be maintained, so that the range of use of the suspension beam 4 can be expanded.

EFFECTS OF THE INVENTION As described above, according to the present invention, the base end portion of the mounting metal fitting provided on the upper end portion of the hoistway wall is rotatable in the horizontal direction through the vertical axis and the elevation angle is obtained through the horizontal axis. An arm-type suspension beam that is mounted so that it can be changed and is tilted with its tip end facing upward, a chain whose one end is connected to a suspension bracket that is mounted on the hoistway wall above the mounting bracket, and a suspension beam A pulley arranged at the tip, a rope wound around this pulley and pulled by an electric winch to lift elevator equipment provided in the hoistway, and one end pivotally attached to the tip of the suspension beam and a chain at the other end. Is provided with a chain support fitting to which the other end is connected, and a pulley support fitting whose one end is pivotally attached to the tip of the suspension beam and the pulley is attached to the other end.

As a result, even if the electric winch moves intermittently when the guide rail is lifted, the movement of the pulley due to the tension of the rope and the movement of the chain tension act on the suspension beam separately via the pivot bolts. As a result, the suspension beam does not sway and the suspension center does not move. Therefore, there is an effect that the equipment in the hoistway such as the guide rail can be safely lifted.

[Brief description of drawings]

1 is a vertical cross-sectional view of a hoistway showing an elevator installation apparatus according to an embodiment of the present invention, FIG. 2 is an enlarged side view of the pulley and chain attachment portion, and FIG. 3 is III-III of FIG. FIG. 4 is a vertical sectional view of a hoistway showing a conventional elevator installation device. 1 ... Hoistway, 2 ... Hoistway wall, 4 ... Hanging beam, 4a ... Mounting hole, 5b ... Pulley, 9 ... Pivoting bolt, 10 ... Frame, 11 ... Mounting bracket, 15 ... Hanging bracket, 16 ... Chain, 17 … Rope, 20,21…
Support fittings, 22 ... stoppers, 23 ... engaging fittings, 24 ... nuts. The same reference numerals in the drawings indicate the same or corresponding parts.

Claims (1)

[Claims] 1. A front end portion is attached to a mounting member provided at an upper end portion of a hoistway wall so that a base end portion can be horizontally swung via a vertical axis and an elevation angle can be freely changed via the horizontal axis. An arm-type suspension beam that is inclined upwards, a chain whose one end is connected to a suspension metal fitting that is mounted on the hoistway wall above the mounting metal fitting, and a chain that is disposed at the tip of the suspension beam A pulley, a rope wound around the pulley and pulled by an electric winch to lift elevator equipment provided in the hoistway, one end of the suspension beam is pivotally attached to the tip end, and the other end of the chain is attached to the other end. An elevator installation device comprising: a chain support metal fitting connected to each other; and a pulley support metal fitting, one end of which is pivotally attached to the tip of the suspension beam and the other end of which is pivotally attached to the pulley.