JPS6256281A - Elevator device - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

[Detailed description of the invention] [Industrial application field]

The present invention relates to an elevator system, particularly an elevator system suitable for private residences.

[Conventional technology]

In recent years, with the advancement of an aging society, there has been a strong desire to install 1/1 Beta in 2-3 story private residences. However, conventional elevator equipment has developed in response to the demand for offices and apartment complexes, so even if the elevator equipment suitable for these applications is simply downsized, it will not be effective in terms of installation space efficiency and economy for use in private residences. Various inadequacies arise from this aspect. In other words, in general elevator equipment, a method is often used in which the car and the counterweight are connected by a main rope and raised and lowered in a C-slide style. Since it occupies a relatively large proportion in comparison, it has become unsuitable for small elevator equipment. Therefore, we created an elevator system that does not use a counterweight.
For example, there is a drum-type elevator device as shown in FIGS. 2 to 4 of Mitsubishi Electric Technical Report Vol. 57, No. 11 (published November 25, 1980), page 7 (745). This is done by winding the main rope onto the winding trunk, or unwinding it from the winding trunk.
The car is raised and lowered by lifting the elevator, and as it does not use a counterweight, it is suitable as a small elevator system.

[Problems to be solved by the invention]

Although a counterweight is no longer necessary in the conventional engineering novator equipment mentioned above, since it is a winding barrel type, safety devices such as emergency stops and speed governors are required in case the main rope breaks. However, the small elevator system M has a problem in that it is disadvantageous in terms of space and space for installing the winding drum and the safety device as described above. This invention is an attempt to solve the above-mentioned problems, and eliminates the need for safety devices such as counterweights, main ropes, winding drums, emergency stops, speed governors, etc., reduces the installation space, and We aim to provide an engineering I/beta that can reduce the cost and is suitable for the usage environment of private residences.
It has been the target.

[Means for solving the problem 1] According to the present invention, the noveta device has a threaded rod (rotated by a drive machine) inside the hoistway.
・Secure the threaded rod of Part B with the slotted nut and the basket,
1. The upper end of the threaded rod can be moved in the -1 direction by a thrust bearing, and the lower end of the threaded rod can only be moved slightly toward the shaft (ζ). The members (γ) are designed to be supported on the hoistway wall side.

[For use]

In this invention, in the -beta device, the drive machine has
], by the rotation of the threaded rod c1, the threaded rod and the nut fixed to the cage are screwed together, causing the cage to move upwards. Therefore, a counterweight, a main rope, and a winding drum are not required. ,;! ＃、Move the upper end of the above threaded rod upward ii ■ ability + j、The 10141st part of the threaded rod is supported on the hoistway wall side to allow slight movement (ζ) in the downward direction, and the threaded rod is vertically moved If it can be made as thin as possible to withstand the load, safety +t can be easily ensured in the event of over-rotation of the threaded rod, and safety devices such as emergency stops and speed governors can be made unnecessary.

【Example】

Embodiments of the invention of B will be described below with reference to FIGS. 1 to 4. In Figures 1 to 4, 1 is the hoistway, 2 is the hoistway 1
3. A support beam installed horizontally on the upper wall of the hoistway, 3 a guide rail erected vertically in the hoistway 1, the upper end of which is supported by the support beam 2, and the bottom of which is supported by the wall of the hoistway; 4 71 a car disposed between the guide rails 3 and 3 and having a car frame 5 and a car compartment 6 supported thereon; 71 a car door for opening and closing the entrance to the car compartment 6; Door, 9
A guide roller 10 is arranged at the rear of the car 4 and includes three rollers that are attached to the car frame 5 and roll on the top and side surfaces of the guide rail to guide the elevator car 4 up and down.
The arm 10 projects to one side and is fixed to the lower surface of the car frame 5. 11 is a nut that is fixed to the arm 10 and has a square female thread on its inner periphery; 12 is a nut that is perpendicular to the hoistway 1; Screwed with a threaded rod made of a provided pipe material, screw thread 121j: screwed into the nut 11, 71
3 is fixed to the support beam 2, and a J-shaped elastic body 14 made of vibration isolating rubber is mounted on the lower metal plate 15, 1.5. The fixed bearing box 17 is placed in the bearing 1816 and installed with the subsoil 1, and the thrust bearing 18 is the support beam 2 and the bearing box 1.
This is a support metal fitting that passes through the bottom of No. 6 through a gap and is screwed to the -1 end threaded portion 12B of the small diameter upper portion 12A of the screw rod 12. 17 (5) The rod i2 is suspended so as to be movable in the upward direction. The upper end threaded part 1213 of the rod 12 passes through the gap.
It is a switch, and the switch 20 (i') is provided with a masterpiece arm 20A that engages with an annular groove 12C formed in a protruding portion on the lid 19 of the upper end threaded portion 12B of the screw barrel 12. 2I is a bracket fixed to the bottom of the hoistway 1, 22 is a vertical axis electric motor fixed to the bracket 21, and this motor 22 is a notch 23 provided in the side wall ζζ of the W overland route 1. A cover 24 is attached to the outer surface of the side wall of the elevator and covers the electric motor 22, and a cover 25 is fitted and fixed to the output shaft of the electric motor 22. A driving spur gear 26 is a driven spur gear 27 that meshes with a driving spur gear 25 fitted and fixed to the F end of the zero rod 12, and is a driving machine composed of an electric motor 22 and spur gears 25 and 26. Reference numeral 28 denotes a movement blocking member composed of a horizontal portion of the Braguet I-21 through which the lower end of the threaded rod 12 is slidably supported, and the movement blocking member 28 is arranged above the driven spur gear 26. The upward axial movement of the screw/rod 12 is prevented by only slight movement until the driven spur gear 26 comes into contact with it. The guide z9 is provided with a pair of rollers 31, 31, and the guide z9 is arranged so that the threaded rod 12 is guided with a clearance between the rollers 31, 31. A shock absorber 33 is installed at the bottom, and an upper shock absorber 33 is fixed to the support beam 2 on the earth of the hoistway 1. Novator device: When the electric motor 22 is driven, the driving spur gear 25
, driven]' The threaded rod 12 rotates via both gears 6, and the screw
) JJ was fixed to the rod J2 through the arm 10 to the basket "4".
Since the bolts 11 are screwed together, the nuts I and 11 move up and down at L in the direction of rotation of the threaded rod 12, and the cage 4 also moves up and down. At this time, since the car 4 is guided to the guide rail 3 via the guide rows S and 9, only force 11 (force) is applied to the threaded surface of the groove il of the nut 11 and the threaded rod 12, and the return of the car 4 is A moment due to a load is not applied to the threaded rod 12, and the threaded rod 12 is slidably passed through the bracket 21 and is rotatably supported there, so that the threaded rod 12
The upper end (not supported in the axial direction) is suspended from the support beam 2 by the pivot 16 via the support fitting J8, and a tensile force is always applied. 1, rods 1 and 2 LJ can be made thinner by 1' due to the vertical load. Also, the upper end of the rod 12 is movable in one direction with a thrust bearing 17. , the lower end can move upward only in the B'1 method (see FIG. 1) until the driven spur gear 26 comes into contact with the movement prevention member 28, so the following effect can be obtained. , an end stop device (not shown) is provided for the elevator pipe diameter of car 4, and when the end stop device of car 4 operates, the power is cut off and the electric! lJm 22 stops. If the elevator car 4 is prevented from moving up and down due to a cause, an overcurrent is detected and the power to the motor 22 is cut off.If the power supply is not cut off due to a malfunction or other reason, the car 4 will move on the lowest floor. Even if the loose F[32 is compressed and its descent is prevented, the threaded rod 12 is rotated.In this case, the threaded rod 12 protrudes from the neck 1 and the threaded rod 1
If the structure is such that the end portion of the second wheel cannot move upwardly, a compressive force will be applied to the threaded rod 12. However, in the embodiment B, since the upper end of the rod 12 is supported so as to be movable upward as described above, when an upward thrust is applied to the threaded rod 12, the lower end of the rod 12 A dimension 1″ at the support part!
After slightly moving upward, the driven spur tooth $26 comes into contact with the moving Fil stop member 28, and the thrust of the threaded rod 12 is applied to the driven spur tooth 1f2.
6 @ni to bracket 21], threaded rod 1
No LL contraction force is applied to 2. Furthermore, threaded rod 1
2. Annular groove “12C” (ζ Microphone fil switch 2)
Since the first arm 2OA of 0 is engaged, even if the operating arm 20A opens the switch 20 when the threaded rod 12 is pushed up, the power to the motor 22 is cut off. Note that while the driving force from the electric motor 22 is working,
When the -1-yt of the car 4 is blocked, the threaded rod 12 is pushed up and only tensile force acts on it, and although there is no risk of buckling, it becomes overloaded, so even in the condition B, the motor 22 It is preferable to cut off the power supply. So(
In this embodiment, the thrust bearing 17 and the bearing box 16 are
Since the elastic body 14 is supported by the vibration isolator 15 through the bottom of the ring, the elastic body 14 is overcompressed and the threaded rod 12 moves downward, causing the microswivel and the sochi 20 to open.
1. Then, the power to the electric motor 22 can be cut off. Furthermore, in this embodiment, the thrust bearing 17 is connected to the vibration isolator 15.
Since the support beam 2 supports vibration isolation, the thrust bearing 1
7 vibrations can be prevented from being transmitted to the building structure. Moreover, since this embodiment does not have a counterweight, the cross-sectional area of the hoistway 1 is small and does not have a main rope or its winding drum, so there is no need to provide a machine room, and the electric motor 22 only needs to protrude slightly to the outside of the wall for approximately one lift, and combined with the fact that safety devices such as emergency stops and speed governors are not required, the installation space of the elevator equipment is reduced and the structure is simplified. be able to. In the above embodiment, the drive machine is provided at the lower end of the hoistway, but the present invention also allows the drive machine to be provided at the top of the hoistway.
In this case, attach the lower end of the threaded rod to the F section of the hoistway.
An appropriate movement prevention member may be provided to allow fine movement of the movement in the direction.

【Effect of the invention】

As explained above, according to the present invention, a threaded rod rotated by a drive machine is provided vertically in the hoistway, a nut screwed into the threaded rod is fixed to the car, and two ends of the threaded rod are fixed to the car. The lower end of the threaded rod is supported by a thrust bearing on the wall of the hoistway in a circular motion in the -L direction, allowing only slight movement in the direction of the lower end of the threaded rod (
This movement prevention member (1, 7, so that the L supports the support beams on the hoistway wall side) This eliminates the need for safety devices such as counterweights, main ropes, winding drums, emergency stops, speed governors, etc. The driving machine also hardly protrudes outside the hoistway wall; 1. It can be moved, requiring a small installation space, and the cost is low, promoting elevators that are suitable for use in private residences. It has the effect of being able to do it.

[Brief explanation of the drawing]

Fig. 1 is a vertical sectional view of a hoistway showing an embodiment of the elevator according to the present invention, Fig. 2 is a sectional view taken along the line IT-11 of Fig. 1, and Fig. 3 is a guide for the threaded rod of Fig. 1. FIG. 4 is an enlarged vertical sectional view of the upper end support of the threaded rod of FIG. 1; 1 ・Hoistway, 2 Support beam, 4 Car, 11 ・-1゛-)l・, 12 Threaded rod, 14 Elastic body, 17 Thrust bearing, 27 ・Drive! ll1I machine, 28 movement prevention member, 29 guide. Note that the same reference numerals in the figures indicate the same or equivalent parts. Agent Masuo Oiwa (2 idiots) Figure 2 Otsu 4 Figure 3

Claims (3)

[Claims] (1) A threaded rod installed vertically in the hoistway and rotated by a drive machine, a car placed in the hoistway, a nut fixed to the car and screwed onto the threaded rod, and the threaded rod A thrust bearing that supports the upper end of the threaded rod so as to be movable in an upward direction; and a movement prevention member that allows fine movement of the lower end of the threaded rod in an upwardly movable manner; An elevator device characterized in that a blocking member is supported substantially on a wall side for lifting/lowering. (2) The elevator apparatus according to claim 1, wherein the threaded rod is guided with play in a guide provided in the car. (3) The elevator apparatus according to claim 1 or 2, wherein the thrust bearing is supported on the hoistway wall side via an elastic body.