JPH058306Y2 - - Google Patents

Description

[Detailed Description of the Invention] [Industrial Application Field] This invention relates to an elevator used for raising and lowering people and appropriate articles.

[Conventional technology]

A basket is stored in a hoistway provided in the building, and a hoisting machine for the hanging wire connected to the top of the hoistway is fixed above the hoistway, and the hoisting machine is driven to wind and unwind the hoisting wire. Elevators that move the basket up and down by doing this have long existed.

[The problem that the idea attempts to solve]

By the way, in elevators that use suspension wires, the suspension wires stretch, and this stretch causes the cage to stop at a different position, so maintenance and inspection work to correct the stretch of the wires must be performed periodically. , there is a disadvantage that it takes time and effort to manage.

In addition, since the central part of the basket is suspended by a hanging wire, if a load is applied to the corner of the basket, the basket will tilt and the contact resistance of the guide section that guides the elevator movement of the basket will increase, causing the hoisting machine to As such, a large one is required.

Furthermore, since the entrance to the building is opened by the lifting and lowering movement of the cage, it is necessary to install an outer door at the entrance to increase safety, and the outer door can also be used to open and close the inner door installed at the entrance to the cage. Since the elevator system needs to be opened and closed in conjunction with each other, there is a disadvantage that the mechanism of the elevator system is complicated.

Therefore, the technical object of this invention is to eliminate the above-mentioned disadvantages, eliminate the need for frequent maintenance and inspection work, and provide a simple elevator with an excellent safety structure.

[Means to solve the problem]

In order to solve the above problems, in this invention, four pillars are provided in the hoistway, and a pair of hanging sheets made of plain weave fabric are installed at the front and rear of the upper side of the cage, which is supported so as to be able to rise and fall along the pillars. A pair of sheet winding machines, each of which has one side connected and a motor connected to a sheet winding shaft connected to the other side of each hanging sheet, are fixed above the hoistway, and a barrier membrane is installed at the front lower part of the cage. A membrane winding shaft is fixed to the lower side of the hoistway, to which one side of the barrier membrane is connected, the other side of the barrier membrane is connected, and a return rotation force is applied by a spring, and the width dimension of the barrier membrane and hanging sheet is fixed. We adopted a configuration in which the width was larger than the width at the entrance to the building.

[Effect]

In the elevator configured as described above, a pair of sheet winding machines are rotated synchronously, and the pair of hanging sheets are wound up or rewound by the sheet winding machines to move the basket up and down. During construction, the barrier membrane is unwound or wound up from the membrane winding shaft by the vertical movement of the cage, and either the barrier membrane or the hanging sheet closes the entrance/exit of the building.

〔Example〕

Hereinafter, embodiments of this invention will be described based on the accompanying drawings.

As shown in FIGS. 1 and 2, four pillars 2 are erected in a hoistway 1 provided in a building, and a cage 3 is arranged inside the pillars 2.

Sheet connecting members 4, 4 made of shaped materials are fixed to the front and rear of the upper side of the basket 3, and membrane connecting members 5, 5 are fixed to the front and rear of the lower side. As shown in FIGS. 3 and 5, both ends of the sheet connecting member 4 are provided with protrusions 6 that protrude outward from the side surfaces of the basket 3, while both ends of the membrane connecting member 5 are also provided with the sheet connecting members 6. Similar to the member 4, protrusions are provided, and each protrusion 6
A guide rail 7 is fixed to each column 2 to guide the vertical movement of the column.

The guide rail 7 has a guide groove 8 into which the protruding portion 6 fits, and a cylindrical inner rail 9 is assembled inside. The inner rail 9 extends in the length direction of the guide rail 7, and has an insertion groove 10 parallel to the guide groove 8 on the surface facing the guide groove 8.
In addition, flanges 11 are provided on both sides of the inner rail 9.
An elastic member 12 inserted between the inner rail 9 and the inner plate of the guide rail 7 presses the inner rail 9 outward.

Note that the guide rail 9 is omitted, and each support column 2 is
A guide groove for guiding the movement of the protrusion 6 and a rail storage space that communicates with the guide groove and extends in the length direction of the column are provided, and an inner rail is provided in the rail storage space, and the inner rail is placed outwardly. A pressing elastic member may also be incorporated.

As shown in FIG. 1, one side of a pair of hanging sheets 13 is connected to each sheet connecting member 4. As shown in FIG. The hanging sheet 13 is made of a plain weave of natural, synthetic, or metal threads with low elongation, and both side edges thereof are inserted into the insertion grooves 10 of the inner rail 9. Further, in the length direction of the side edge of the hanging sheet 13 facing inside the inner rail 9, a flexible protrusion 14 is provided like a fitting tooth of a slide fastener. This protrusion 14 engages with the inner surface of the inner rail 9 and is pushed outward by the elasticity of the elastic member 12 applied to the inner rail 9. Therefore, tension is applied to the hanging sheet 13 in the width direction.

The suspended sheet 13 extends upward along the hoistway 1 as shown in FIG. will be returned.

Here, as shown in FIG. 6, the sheet winding machine 16 houses a motor 18 inside a cylindrical sheet winding shaft 17 to which the other side of the suspended sheet 13 is connected, and rotates the motor 18 relatively. A motor 18 is freely supported, and a rotating shaft 19 of the motor 18 is connected to the sheet winding shaft 17, and the motor 18 faces outward from one end of the sheet winding shaft 17.
The end of the sheet winding shaft 17 and the ball socket 20 rotatably connected to the other end of the sheet winding shaft 17 are attached to an appropriate fixing member, but both ends of the sheet winding shaft are rotatably supported by bearings. However, the sheet winding shaft may be rotated by a motor provided outside the sheet winding shaft.

On the other hand, one side portion of a pair of barrier membranes 21 made of a plain weave structure, similar to the hanging sheet 13, is connected to each membrane connecting member 5. Although the both side edges of this barrier membrane 21 are omitted in the figure, the inner rail 9 is inserted therethrough similarly to the both side edges of the hanging sheet 13, and the protrusions (not shown) provided on both side edges and the inner rail Resilience is imparted to the barrier membrane 21 in the width direction by the engagement of the inner surfaces of the shield membrane 9 .

The barrier membrane 21 extends below the hoistway 1, and the other side is wound up by a membrane winding shaft 23 provided at the bottom of the hoistway 1. This membrane winding shaft 23 has a built-in spring, although it is labor-saving in the drawing. The spring is twisted by the unwinding of the barrier membrane 21, and its restoring elasticity causes the membrane winding shaft 23 to return to rotation.

The elevator shown in the embodiment has the above-mentioned structure, and when the elevator is used for lifting goods, the doorway 3' of the basket 3 may be left open; when the elevator is used for lifting and lowering people, the doorway 3' is left open. Install a door body that can be opened and closed freely to increase safety.

7 and 8 show an example in which a door body is attached to the entrance 3' of the basket 3. Here, the door body 24
is made of a sheet, and a winding shaft 25 with a built-in spring for winding up the sheet 24 is attached to one side of the entrance/exit 3'. Further, an inner rail 27 having a shape similar to the inner rail 9 shown in FIG. The guide groove 29 of the inner rail 27 guides the movement of the upper and lower sides of the sheet 24, and the flexible protrusions 30 provided on the upper and lower sides engage with the inner surface of the inner rail 27. An operating frame 31 is attached to the tip of the sheet 24 to apply tension in the width direction to the sheet 24 and hold the sheet 24 in an open position, and to open and close the sheet 24.

Now, when the sheet winding shafts 17 of the pair of sheet winders 16 are synchronously rotated in the sheet winding direction, the pair of hanging sheets 13 are wound up by the sheet winding shafts 17, and the basket 3 is raised. Furthermore, when the sheet winding shaft 17 is rotated in the opposite direction, the pair of hanging sheets 13 are rewound, and the basket 3 is lowered.

At this time, due to the vertical movement of the basket 3, the barrier membrane 21
is unwound or wound up from the membrane winding shaft 23. Each of the barrier membrane 21 and the hanging sheet 13 is guided at both side edges by inner rails 9 in the guide rail 7 attached to the support column 2, and the width thereof is larger than the width at the entrance/exit 32 of the building. 32 is closed by a hanging sheet 13 connected to the front upper part of the basket 3 and a blocking membrane 21 connected to the front lower part of the basket 3. For this reason,
There is no need to provide a door at the entrance/exit of the building, and the structure of the elevator system can be simplified.

Furthermore, since each of the pair of hanging sheets 13 is made of a plain weave structure and has almost no elongation, the stopping position of the basket is always constant, which reduces maintenance and inspection work for position adjustment.
Since the pair of hanging sheets 13 uniformly support the entire width of the upper front and back of the basket 3, the basket 3 will not tilt even if a load is applied to an offset position of the basket 3, making the basket 3 extremely stable. It can also be raised and lowered smoothly.

In the case of the embodiment, the barrier membrane 21 was also connected to the lower rear part of the basket 3, but the barrier membrane 21
can be omitted.

[Effect of idea]

As described above, in this invention, the basket is suspended and supported by a pair of plain-woven hanging sheets with low elongation, and the hanging sheets are wound and rewound by a sheet winder to move the basket up and down. Therefore, the stop position of the basket does not change even if the elevator is used for a long period of time, and maintenance and inspection work for adjusting the stop position can be reduced.

In addition, since the pair of hanging sheets supports the entire width of the upper front and rear portions of the basket, the basket will not tilt even if a load is applied to an uneven position of the basket.
It is possible to provide an elevator with excellent stability.

Furthermore, the hanging sheet connected to the front upper part of the cage and the barrier membrane connected to the front lower part of the cage close the entrance/exit of the building when the cage goes up and down, so there is no need to provide a door at the entrance/exit, and the structure of the elevator system is improved. can be simplified.

[Brief explanation of drawings]

Fig. 1 is a longitudinal side view showing an embodiment of the elevator according to this invention, Fig. 2 is a sectional view taken along the - line in Fig. 1, and Fig. 3 shows the guide portions on both sides of the same hanging sheet. 4 is a longitudinal sectional front view of the same, FIG. 5 is a perspective view of the same, FIG. 6 is a sectional view of the sheet winding machine of the above, FIG. 7 is a transverse plan view of the basket of the same, FIG. 8 is a longitudinal sectional side view of the same as above. DESCRIPTION OF SYMBOLS 1... Hoistway, 2... Support, 13... Hanging sheet, 16... Sheet winder, 17... Sheet winding shaft, 18... Motor, 21... Breaking membrane, 23...
Winding shaft, 24...door body.

Claims (1)

[Scope of utility model registration request] Four pillars are provided in the hoistway, and one side of a pair of hanging sheets made of plain weave fabric is connected to the front and rear of the upper side of the basket, which is supported so as to be able to rise and fall along the pillars, and the other side of each hanging sheet is A pair of sheet winders each having a motor connected to a sheet winding shaft connected to An elevator in which a membrane winding shaft to which a spring is connected and a return rotational force is applied by a spring is fixed to the lower side of the hoistway, and the width of the barrier membrane and hanging sheet is larger than the width at the entrance/exit of the building.