JP2000038271A - Car self-running type elevator - Google Patents

Abstract

PROBLEM TO BE SOLVED: To restore and elevator early when a motor causes a failure. SOLUTION: This car self-running type elevator is provided with a car 2 arranged in a hoistway 1 so as to move vertically, a motor 3 provided in the car 2, a screw shaft 4 rotated by the motor 3, and a ball screw 5 engaged to the screw shaft 4, a support member 6 attached to the ball screw 5, traveling sheaves 7, 8 attached to this support member 6, and a rope 14 whose one end is fixed on the car after the other end is fixed on the hoistway and is applied on the traveling sheaves 7, 8.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a car self-propelled elevator in which a car is provided with a motor for running the car.

[0002]

2. Description of the Related Art Conventionally, there is a home elevator installed in a general house, for example, as shown in FIG. In FIG. 1, reference numeral 101 denotes a hoistway (pylon) provided in a two-story house, and a car 102 is disposed in the hoistway 101 so as to be vertically movable. A rope 103 is fixed to the car 102, and the rope 103 is hung on a sheave 104 and then wound around a winding drum 105 provided in a pit chamber below the hoistway 101. When the winding drum 105 is rotated in the forward and reverse directions by the motor 106, the car 102 travels between the first and second floors.

[0003]

However, in such a conventional elevator, when the car 102 is stopped on the first floor due to a failure of the motor 106, the motor 106 is moved into the hoistway 101. The car must be repaired, but since the car is located immediately above the motor, there is a problem in that the repair of the motor is difficult to perform under the car, and thus, the recovery is not quick.

An object of the present invention is to make it possible to quickly restore an elevator when a motor fails.

[0005]

In order to achieve the above object, according to the present invention, there is provided a car provided in a hoistway so as to be vertically movable, a motor provided in the car, and a motor provided in the car. A screw shaft that is rotationally driven by the screw shaft and a ball screw that is engaged with the screw shaft, a support member attached to the ball screw, a moving sheave attached to the support member, and one end fixed to the hoistway, And a rope fixed to the car at the other end after being hung on the moving sheave.

[0006]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described below with reference to the drawings. 1 to 3 are views showing an embodiment of a car self-propelled elevator according to the present invention.

In FIGS. 1 and 2, reference numeral 1 denotes a hoistway of a home elevator installed in a two-story house. In the hoistway 1, a car 2 is guided by a guide rail so as to move up and down. It is arranged. A motor 3 for running the car 2 is provided below the side surface 2a of the car 2, and the motor 3 rotates a screw shaft 4 disposed in a vertical direction in forward and reverse directions. The side 2a is the car 2
The motor 3 can be repaired from inside.

[0008] A ball screw 5 is engaged with the screw shaft 4, and a support member 6 is attached to the ball screw 5. Moving sheaves 7 and 8 are rotatably mounted on both sides of the support member 6. Guide shoes 9 and 10 are attached to both left and right ends of the support member 6, and the guide shoes 9 and 10 slidably engage with guide rails 11 and 12 provided on the side surface 2a of the car 2 in the vertical direction. ing. A fixed sheave 13 is attached to an upper portion of the side surface 2 a of the car 2.

One end of a rope 14 is fixed to the upper part of the hoistway 1. The rope 14 is hung on the moving sheave 8, is hung on the fixed sheave 13, and is hung on the moving sheave 7. Fixed at the top.

Here, as shown in FIG. 3, the center of the support member 6 is attached to the ball screw 5 via a pin 15, so that even if the support member 6 slightly swings, Are not transmitted to the ball screw 5.

When the motor 3 is rotated in the forward / reverse direction, the screw shaft 4 rotates forward / reverse to move the ball screw 5 in the vertical direction, and the supporting member 6 is also movable in the vertical direction with the ball screw 5. Let me do. With the vertical movement of the support member 6, the movable pulleys 7, 8 also move in the vertical direction, and at this time, the movable pulleys 7, 8 pull the rope 14. Then, the car 2 pulls the rope 14, and the car 2 runs up and down along the guide rail.
The traveling height of the car 2 at this time is about four times the car height.

On the other hand, as the car 2 travels, the supporting members 6
The ball screw 5 can move up and down along the screw shaft 4 because the swing is not transmitted to the ball screw 5 as described above.

When the car 3 stops on the first floor due to the failure of the motor 3, an operator opens an inspection door (not shown) provided on the side surface 2a from the car 2 to repair the car.

The ball screw 5 is connected to the screw shaft 4
, The car 2 travels, so that even if the brake 3a attached to the motor 3 breaks down, the fall will be gentle.

The present invention can be applied not only to home elevators but also to general commercial elevators.

[0016]

As described above, according to the present invention,
Since the car is provided with the motor, the motor can be repaired from within the car, and the elevator can be quickly restored.

On the other hand, since the car runs by moving the ball screw up and down along the screw shaft, even if the brake attached to the motor breaks down, the fall will be gradual, and Time safety is improved.

Further, since the driving device is not fixed to the building side, vibration to the building is not easily transmitted.

[Brief description of the drawings]

FIG. 1 is a front view showing an embodiment of a car self-propelled elevator according to the present invention.

FIG. 2 is an upper side view of FIG.

FIG. 3 is a plan view of a support member.

FIG. 4 is a perspective view of a conventional home elevator.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 ... hoistway, 2 ... basket, 3 ... motor, 4 ... screw shaft, 5 ... ball screw, 6 ... support member, 7, 8 ... moving sheave, 13 ... fixed sheave, 14 ... rope

Claims (1)

[Claims] 1. A car provided in a hoistway so as to be vertically movable, a motor provided in the car, a screw shaft rotationally driven by the motor, a ball screw engaged with the screw shaft, and a ball screw. A movable sheave attached to the support member, and a rope fixed at one end to the hoistway, hung on the movable sheave, and then secured to the car at the other end. A car self-propelled elevator characterized by the following.