JPH0812220A - Elevator - Google Patents

Abstract

PURPOSE:To provide an elevator which can make high speed motions with the operational sound sunk by provision of double structural rack rods and a pair of pinions located on the two sides and which serves a wide scope of application with a high safety and also with simple inspection/maintenance works. CONSTITUTION:Pinions 6A and 6B two pieces each are simultaneously meshed with the two side faces and long, double structural rack rods 5A, 5B installed vertically in two places on the inside 2 of the framing 1 of elevator. From both sides, two worm wheels etc., 13 are meshed with a worm 12 in direct coupling with a motor shaft 38, and the pinions 6A, 6B are driven through a shaft 8. The worm wheels 13 are rotated by a worm in the reverse spiral direction to the worm in the regular spiral direction in direct coupling with the motor shaft 10, and the pinions 6A, 6B are driven through the shaft 8.

Description

Description: BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention is widely used in elevators for people installed indoors and for vehicles / articles installed indoors or outdoors. 2. Description of the Related Art Currently, most elevators are of a wire rope suspension type, but the maintenance is not easy because the wire rope is easily damaged. Further, a hydraulic type that may cause a shallow oil leakage is used for the lower layer, and a rack and pinion type is also used for a small amount, but it has problems of noise and wear of the pinion and is not widely used for the upper layer. DISCLOSURE OF THE INVENTION The present invention aims at maintaining self-safety that does not require emergency braking measures in the event of a power failure, such as a wire rope suspension elevator, and emergency rail locking when cutting the wire rope. Further, like a conventional rack and pinion type elevator, noise and wear at the meshing parts of the pinion can be eliminated to enable quiet and high speed operation. Therefore, the goal is an elevator that can be widely used indoors and for high-rise buildings. As shown in FIGS. 1, 3 and 4, the present invention is directed to a rack 3 on both sides of a compound rack bar 5A mounted on a frame 1 of an elevator. By engaging two pinions 6A and 7A with 4 and 4 and rotating them in the forward and reverse directions at an equal circumferential speed, this pair of pinions is moved up and down. This mechanism is also used for another double rack bar 5B to raise and lower the cage 2 of the elevator in which they are installed. In addition, the four pinions 6A, 6B, 7A and 7B are always meshed with the two compound rack rods, and a worm speed reduction mechanism that blocks a reverse acting force is interposed between these pinions and the shaft 10 of the motor. To improve safety. As shown in FIG. 2, the one-sided rack 15 normally supports a component force of the tooth flank transmission force when the pinion 16 is engaged by a roller 17 having high rigidity. In the present invention, as shown in FIG. 1, pinions 6A and 7A are meshed with both sides of the double rack rod 5A. 14 to 20 for tooth profile
Since the contact angle of the tooth surface is biased to one of the pinions, the duplex rack rod 5A escapes slightly in the opposite direction, and this time, the tooth surface contact force of the other pinion is increased to return to the original state. That is, it has a self-regulating function. Therefore, since the impact force generated on the tooth surface can be alleviated, wear and damage of the pinion are reduced, and high speed rotation is possible. Further, as shown in FIGS. 3 and 4, two worm wheels 13 and 14 mesh with the worm 12 directly connected to the shaft 10 of the motor from both sides to reduce the speed by about 1/10, and the shaft 8 and Power is transmitted to 9. Then, the pinions 6A, 6B, 7A and 7B fixed to this are driven. Therefore, even when the motor is stopped, the rotation of the pinion is blocked by the worm 12, and the elevator cage 2 does not fall. 4 and 5 show a state in which the worm wheels 13 and 14 mesh with the worm 12 'in the forward winding direction and the worm 12 "in the reverse winding direction, and like the above, the reverse action force from the pinion is blocked. [Embodiment] [0006] As an example of the implementation of the present invention, as shown in [Fig. 3] and [Fig. 4], the inside 2 of the pedestal 1 of the elevator.
Racks 3 on both left and right sides of a long rod mounted vertically at the point
And 4 to form the double rack rods 5A and 5B, while the pinions 6A and 7A fixed to one end of shafts 8 and 9 rotatably supported on the cage 2 are sandwiched from the left and right sides of the double rack rod 5A. 3 and 4, and similarly, the pinions 6B and 7B at the other ends of the shafts 8 and 9 are meshed with the racks 3 and 4 of the multiple rack bar 5B. On the other hand, the worm 12 is coupled to the shaft 10 of the motor mounted on the cage 2 by the coupling 11, and the worm wheel 13 and the worm wheel 14 are meshed with the worm 12 from both sides, so that these worm wheels can rotate at the same peripheral speed. Rotate in the forward or reverse direction. This rotation is transmitted through the shafts 8 and 9 to the pinions 6A, 6B, 7
Transfer to A and 7B. Each pinion is manufactured so that the peripheral speeds of these four pinions are the same, and this pinion is engaged with the double rack rods 5A and 5B to raise and lower the cage 2 by this rotational force. Here, when the worm wheels 13 and 14 have the same number of teeth, the shafts 8 and 9 rotate normally or reversely at the same number of rotations. Therefore, the pinion 6A, 6B,
7A and 7B all have the same pitch circle, and when the racks 3 and 4 of the double rack bar have the same module, the four pinions have exactly the same number of teeth.
By connecting the shafts 8 and 9 with the worm wheels 13 and 14 and the pinions 6A, 6B, 7A and 7B by splines, there is almost no risk of damage to the rotation transmitting parts after the worm 12, and the worm and the worm wheel are not damaged. By reducing the speed reduction ratio of the cage to about one tenth, the counteracting force from the pinion is blocked, so the cage 2
Almost no fear of falling. 5 and 6 show that, instead of the method of rotating the worm wheel 13 and the worm wheel 14 in the forward and reverse directions by the single worm 12, the worm 1 in the forward winding direction is used.
The structure is such that the worm wheel 13 and the worm wheel 14 are rotated in the forward or reverse direction by the worm 12 ″ in the reverse winding direction with 2 ′. In the figure, the worms 12 ′ and 12 ″ are cut out from one shaft. Although shown as being directly connected to the motor shaft 10 by a coupling 11,
Of course, this space may be cut off and separated into two worms and a gear case containing a worm wheel. As described above, by adopting the double rack rod and the pair of pinions on both sides as in the present invention, the operation noise is low, high-speed operation is possible, and the effect of blocking the reverse acting force from the pinion side is used together. This makes it possible to develop elevators with a wide range of uses that are highly safe and therefore easy to inspect and maintain.

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a side view of a main part of an elevator according to the present invention. FIG. 2 is a side view of a main part of a conventional rack and pinion elevator. FIG. 3 is a side view of an elevator according to the present invention. FIG. 4 is a vertical cross-sectional view taken along the line AA of FIG. 4. FIG. 3 is a cross-sectional view taken along the line BB of FIG. 3. FIG. 5 is a view taken along the line CC of the elevator shown in FIG. Longitudinal cross-sectional view [Fig. 6] [Fig. 5] D-D cross-sectional view [Explanation of symbols] 1 ……………… Elevator stand 2 ………………
… Cages 3 and 4 ……… Racks 5A and 5B…
... Complex rack bars 6A and 6B ... Pinion 7A and 7B ...
… Pinions 8 and 9 ………… Shaft 10 ………………
...... Motor shaft 11 ………… Couplings 12, 12 'and 12 "… Worms 13 and 14 ……… Worm wheel 15 ……………
…… One side rack 16 ……………… Pinion 17 ………………
……roller

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[Procedure Amendment] [Date of submission] August 18, 1995 [Procedure Amendment 1] [Document name for amendment] Specification [Item name for amendment] Claims [Amendment method] Change [Amendment content] [Patent] Claims: 1. A rack 3 and 4 is formed on both left and right sides of a long rod vertically attached to two places inside an elevator pedestal 1 to form multiple rack rods 5A and 5B, while a cage 2 is provided.
The pinions 6A and 7A fixed to one end of shafts 8 and 9 rotatably supported above are engaged with the racks 3 and 4 so as to be sandwiched from the left and right of the composite rack rod 5A, and similarly, the other ends of the shafts 8 and 9 are also engaged. The pinions 6B and 7B are engaged with the racks 3 and 4 of the double rack bar 5B. Then, by rotating these four pinions at the same peripheral speed and rotating the pinions 6A and 6B fixed to the shaft 8 and the pinions 7A and 7B fixed to the shaft 9 in the forward or reverse directions, The structure of an elevator that can move up and down along the double rack bars 5A and 5B of a book. 2. A worm 12 is connected to a shaft 10 of a motor installed in a cage 2 of an elevator by a coupling 11, and a worm wheel 13 and a worm wheel 14 are meshed with the worm 12 from both sides to make them identical. Rotate in the normal or reverse direction at the peripheral speed of. This rotation is transmitted to the pinions 6A, 6B, 7A and 7B through the shafts 8 and 9. Each pinion is manufactured so that the peripheral speeds of these four pinions are the same, and these pinions are engaged with two compound rack bars 5A and 5B, and the cage 2 is moved up and down by this rotational force. 3. A worm 1 in the forward winding direction instead of the method of rotating the worm wheel 13 and the worm wheel 14 in the forward and reverse directions by one worm 12 shown in the claims.
The structure in which the worm wheel 13 and the worm wheel 14 are rotated in the forward or reverse direction by the worm 12 "in the reverse winding direction with 2 '. 4. The double rack rods 5A and 5B shown in claim 1. in,
Only one double rack bar 5A is used. And pinions 6A and 7A fixed to one end of the shafts 8 and 9
Are engaged with the racks 3 and 4 so as to be sandwiched from the left and right of the compound rack bar 5A, and the pinion 6A is moved in the forward direction, and the pinion 7A
By rotating at the same peripheral speed reverse, cable
J2 can be moved up and down along the double rack bar 5A.
The structure of the elevator. [Procedure Amendment 2] [Amendment Document Name] Specification [Amendment Item Name] 0005 [Amendment Method] Change [Amendment Content] [Operation] As shown in FIG. The high roller 17 supports the component of the tooth flank transmission force when the pinion 16 meshes. In the present invention, as shown in FIG. 1, pinions 6A and 7A are meshed with both sides of the double rack rod 5A. 14 to 20 for tooth profile
Due to the pressure angle of °, when the tooth surface contact force is biased to one pinion, the double rack 5A escapes slightly in the opposite direction, and this time the tooth surface contact force of the other pinion increases and returns to the original state. That is, it has a self-regulating function. Thus it is possible to relax the shock force generated on the tooth surface, the pinion wear, breakage is capable of high-speed rotation decreases. Further, as shown in FIGS. 3 and 4, two worm wheels 13 and 14 mesh with the worm 12 directly connected to the shaft 10 of the motor from both sides to reduce the speed by about 1/10, and the shaft 8 and Power is transmitted to 9. Then, the pinions 6A, 6B, 7A and 7B fixed to this are driven. Therefore, even when the motor is stopped, the rotation of the pinion is blocked by the worm 12, and the elevator cage 2 does not fall. 4 and 5 show a state in which the worm wheels 13 and 14 mesh with the worm 12 'in the forward winding direction and the worm 12 "in the reverse winding direction, and like the above, the reverse action force from the pinion is blocked. [Procedure Amendment 3] [Amendment Document Name] Drawing [Amendment Item Name] Figure 3 [Amendment Method] Change [Amendment Content] [Figure 3]

Claims (1)

Claims: 1. A rack 3 and 4 is formed on both left and right sides of a long rod vertically attached to two places inside an elevator pedestal 1 to form multiple rack rods 5A and 5B, and one cage. Two
The pinions 6A and 7A fixed to one end of the shafts 8 and 9 rotatably supported above are engaged with the racks 3 and 4 so as to be sandwiched from the left and right of the composite rack rod 5A, and similarly, the other ends of the shafts 8 and 9 are also engaged. The pinions 6B and 7B are engaged with the racks 3 and 4 of the double rack bar 5B. Then, by rotating these four pinions at the same peripheral speed and rotating the pinions 6A and 6B fixed to the shaft 8 and the pinions 7A and 7B fixed to the shaft 9 in the forward or reverse direction, The structure of an elevator that can move up and down along the double rack bars 5A and 5B of a book. 2. A worm 12 is connected to a shaft 10 of a motor installed in a cage 2 of an elevator by a coupling 11, and a worm wheel 13 and a worm wheel 14 are meshed with the worm 12 from both sides to make them identical. Rotate in the normal or reverse direction at the peripheral speed of. This rotation is transmitted to the pinions 6A, 6B, 7A and 7B through the shafts 8 and 9. Each pinion is manufactured so that the peripheral speeds of these four pinions are the same, and these pinions are engaged with two compound rack bars 5A and 5B, and the cage 2 is moved up and down by this rotational force. 3. A worm 1 in the forward winding direction instead of the method of rotating the worm wheel 13 and the worm wheel 14 in the forward and reverse directions by one worm 12 shown in the claims.
The structure in which the worm wheel 13 and the worm wheel 14 are rotated in the forward or reverse direction by the worm 12 ″ in the reverse winding direction with 2 ′.