JPH06286960A - Linear motor-driven elevator device - Google Patents

Abstract

PURPOSE:To provide a linear motor-driven elevator device which is designed to effectively utilize the height of a building and be safe during inspection. CONSTITUTION:The lower part, positioned opposite to a balance weight 2, of a car 1 is suspended by means of a rope, and a sash pulley 5 is arranged to the upper part of an elevator shaft closer to the balance weight 2 side than the projection surface of the car 1 to reduce the top gap size of the car 1. Further, the sash pulley 5 is arranged at an angle of 90 deg. or less with the central line of a rail 10 to reduce the size of the elevator shaft and cope with the unbalanced load of the car 1. As a safe countermeasure during inspection of an elevator device through reduction of the to part gap size, an inspection opening is formed in the car 1 on the building side of the elevator shaft so that inspection is practicable without getting on the upper part of the car 1. Further, as a safe countermeasure when a worker gets on the upper part of the car 1, a human body sensor and a stopper for inspection are provided.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a linear motor drive type elevator apparatus.

[0002]

2. Description of the Related Art In recent years, a conventional hoisting type elevator does not require a hoisting machine, so that it is not necessary to provide a machine room on the roof, and a linear motor drive type elevator device which can effectively utilize the height of the building, for example, Kaisho 57-121568
And Japanese Patent Laid-Open No. 4-55278 have been proposed. FIG. 13 is an explanatory diagram showing the entire conventional linear motor drive type elevator apparatus. FIG. 13A is a plan view of a conventional linear motor drive type elevator apparatus seen from the upper part of a hoistway, FIG. 13B is a side view of the elevator apparatus, and FIG. 13C is a plan view of the elevator apparatus. It is a front view of a counterweight. FIG. 14 (a) shows Japanese Patent Laid-Open No. 4-5
FIG. 14B is a plan view of the linear motor drive type elevator device shown in Japanese Patent No. 5278, and FIG. 14B is a side view of the elevator device. FIG. 15 (a) shows Japanese Patent Laid-Open No. 57-1215.
15 is a plan view of a linear motor drive type elevator device to which the concept of the elevator device shown in Japanese Patent No. 68 is applied.
(B) is a side view of the said elevator apparatus. FIG. 16 is a front view of a counterweight of the elevator apparatus of FIGS. 14 and 15. In the figure, 1 is a car, 2 is a counterweight, and the counterweight 2 is provided with an armature 3 of a linear motor. The armature 3 of the linear motor engages with the secondary conductor 4 to generate a thrust force to move the counterweight 2 up and down. The armature 3 of the linear motor is arranged so as to face both sides of the secondary conductor 4 of the linear motor, and this linear motor system is called a double-sided linear motor. Since the car 1 and the counterweight 2 are connected at both ends of the rope 7 via the hoisting wheels 5 and 6, the car 1 moves up and down as the counterweight 2 moves up and down. 8 is a hoistway wall, and a counterweight rail 10 and a car rail 11 are fixed to the hoistway wall 8. 9 is the ceiling of the hoistway, 100
It is the gateway of a basket.

In the linear motor drive type elevator apparatus shown in FIG. 15, a rope 7 is fixed to a rope fixing plate 101 provided at the bottom of a car 1 so as to face the counterweight 2, and the balance weight 2 of the car 1 is mounted on the rope. This is an example in which the car 1 and the counterweight 2 are coupled at both ends of the rope 7 via a suspension vehicle 5 installed at the upper part of the hoistway on the opposite surface side.

Next, the operation will be described. When a three-phase alternating current is passed through the armature 3 of the linear motor, a straight magnetic field is generated, and an eddy current is generated in the secondary conductor 4 that engages with the armature 3 of the linear motor to generate thrust. The thrust causes the counterweight 2 to move up and down, and the car 1 fixed to the rope 7 via the counterweight 2 and the suspension wheels 5 and 6 also moves up and down.

Since the above-described linear motor drive type elevator device can be lifted and lowered by the linear motor incorporated in the counterweight 2, the hoist can be installed on the hoistway like the conventional hoist type elevator device. It becomes unnecessary. Therefore, it is not necessary to provide a machine room on the roof of the building, and there is an advantage that the floor can be effectively used when the height of the building is limited.

[0006]

Since the conventional linear motor drive type elevator apparatus is constructed as described above, it has the following problems. Car 1 and hoistway ceiling 9
The space between them should be large enough not to be hit by the ceiling or obstacles of the building even if the car goes up too much when riding on the car during maintenance and installation. This dimension is called the top clearance safety dimension TC0. Basket 1
The top clearance dimension TC2, which is a space between the ceiling and the ceiling 9 of the hoistway, is a wasteful space for the building, and therefore is desired to be as small as possible. In the configuration of the linear motor drive type elevator device shown in FIG. 14, since the suspension cars 5 and 6 are located above the car 1, the suspension car 5 is mounted from the ceiling of the car 1.
The dimension TC1 up to is the top clearance safety dimension. That is, since TC1 = TC0, the ceiling 9 of the hoistway is located further above the hoisting vehicle 5, so that a wasteful space is increased by the difference between TC1 and TC2. In addition, this method generally requires two suspension wheels, resulting in high cost.

The configuration of the linear motor drive type elevator apparatus shown in FIG. 15 is such that the wasted space of the top clearance is reduced. That is, it is a system in which a rope fixing plate is provided below the side surface of the car 1 facing the counterweight 2 without suspending the car 1 at the center of the upper part of the car. By doing so, the suspension car 5 can be installed outside the projection plane of the car 1, so that a person on the car does not hit the suspension car 5 with his / her head, and TC1 can be reduced. The top clearance dimension at this time is TC2. That is, since TC0 = TC2, the ceiling 9 of the hoistway can be lowered to TC1 shown in FIG. Also, since there is only one suspension vehicle, there is an advantage in terms of cost. However, there are the following problems.

A1 size shown in FIG. 14B and FIG.
Comparing the A2 size shown in (b), the A2 size is increased by almost the diameter D of the suspension vehicle 5. The diameter D of this suspension vehicle 5 is
Since the ratio D / d of the rope diameter d is determined from the viewpoint of the life of the rope and the like, the diameter of the suspension vehicle 5 cannot be made smaller than a predetermined value. Therefore, since the actual dimension is A1 <A2, the hoistway dimension A0 shown in FIG. 14 (a) becomes large, and the effective use area in the building decreases, which is a problem.

In addition, the linear motor drive type elevator apparatus has a top clearance by providing a safety measure at the time of installation and maintenance of the elevator apparatus from the viewpoint of reducing the size of the top clearance and effectively using the height of the building. Safety dimension TC
It is required to reduce 0 itself to reduce the size of the top clearance to the limit.

The present invention has been made in order to solve the above problems. The height clearance of the building is effectively used by reducing the top clearance dimension TC2, and the top clearance safety dimension TC0 is a standard. You can work safely even if it is below the value,
Furthermore, it aims at providing an inexpensive linear motor drive type elevator apparatus.

[0011]

A linear motor drive type elevator apparatus according to the present invention includes a car, a counterweight, and a counterweight rail installed in a hoistway for guiding the counterweight and a counterweight. A linear motor armature disposed on the weight, a secondary motor secondary conductor that is installed in the hoistway and engages with the linear motor armature to generate thrust, and from the facing surface of the counterweight of the car. A suspension wheel disposed on the upper part of the hoistway on the side of the counterweight, and a rope having one end fixed to the surface facing the counterweight of the car and the other end fixed to the counterweight via the suspension wheel. In the provided linear motor drive type elevator device, the suspension vehicle is installed at an angle of less than 90 degrees with respect to the center line of the counterweight rail.

Further, in the linear motor drive type elevator apparatus according to the present invention, the armature of the linear motor is arranged only on one end side of the counterweight, and the rope is fixed to the upper end on the other end side of the counterweight. May be.

Further, in the linear motor drive type elevator apparatus according to the present invention, the hoisting vehicle is provided parallel to the center line of the counterweight rail at the upper part of the hoistway on the side where the car faces the counterweight. It may be installed.

Further, the linear motor drive type elevator apparatus according to the present invention is installed in a car, a counterweight, a counterweight rail which is installed in a hoistway and guides the counterweight, and a counterweight. The linear motor armature, the secondary motor secondary conductor that is installed in the hoistway and generates thrust by engaging with the linear motor armature, the first suspension car installed in the upper part of the hoistway, and one end of the car In a linear motor drive type elevator device having a first rope fixed to the surface facing the counterweight and having the other end fixed to the counterweight via a suspension vehicle, installed near the first suspension vehicle And a second rope having one end fixed to the opposite side of the car facing the counterweight and the other end fixed to the counterweight via the second suspension wheel. May be.

Further, the linear motor drive type elevator apparatus according to the present invention is installed in the car, the counterweight, the counterweight rail which is installed in the hoistway and which guides the counterweight, and the counterweight. The linear motor armature, the secondary motor secondary conductor that is installed in the hoistway and engages with the linear motor armature to generate thrust, the hoisting car installed above the hoistway, and one end of the cage fishing In a linear motor drive type elevator device that has a rope fixed to the opposite side to the counterweight, and the other end of which is fixed to the counterweight via a suspension wheel, cancels the moment applied to the car by the rope suspension force. In the direction, the car may be provided with an electromagnet on which a force acts between the rail and the car.

Further, the linear motor drive type elevator apparatus according to the present invention is provided in a car, a counterweight, a counterweight rail which is installed in a hoistway and which guides the counterweight, and a counterweight. The linear motor armature, the secondary motor secondary conductor that is installed in the hoistway and engages with the linear motor armature to generate thrust, the hoisting car installed above the hoistway, and one end of the cage fishing In a linear motor drive type elevator device that is fixed on the side facing the counterweight and has a rope fixed to the counterweight on the other end via a suspension car, check on the side facing the counterweight of the car An opening may be provided.

Further, the linear motor drive type elevator device according to the present invention is provided in a car, a counterweight, a counterweight rail which is installed in a hoistway and guides the counterweight, and a counterweight. The linear motor armature, the secondary motor secondary conductor that is installed in the hoistway and engages with the linear motor armature to generate thrust, the hoisting car installed above the hoistway, and one end of the cage fishing In a linear motor drive type elevator device that is fixed to the surface facing the counterweight and has a rope whose other end is fixed to the counterweight via a suspension car, in the building side of the hoistway facing the counterweight. An inspection opening may be provided on the upper side surface.

Further, the linear motor drive type elevator apparatus according to the present invention is installed in a car, a counterweight, a counterweight rail which is installed in a hoistway and which guides the counterweight, and a counterweight. Installed in the space where the armature of the linear motor and the secondary conductor of the near motor, which is installed in the hoistway and engages with the armature of the linear motor to generate thrust, and the cage and the counterweight at the top of the hoistway face each other. In a linear motor drive type elevator device including a hanging vehicle and a rope having one end fixed to a surface facing the counterweight of the car and the other end fixed to the counterweight via the hanging wheel, It may be installed in a hoistway near the floor, and in normal operation the car and the counterweight are stored in the facing space, and at the time of inspection, an inspection scaffold on the top floor that blocks the elevator of the car may be provided. .

Further, the linear motor drive type elevator apparatus according to the present invention is installed in a car, a counterweight, a counterweight rail which is installed in a hoistway and guides the counterweight, and a counterweight. The linear motor armature, the secondary conductor of the near motor that is installed in the hoistway and engages with the linear motor armature to generate thrust, the suspension car installed above the hoistway, and one end fixed to the car However, in a linear motor drive type elevator device equipped with a rope whose other end is fixed to a counterweight via a suspension vehicle, a human body detection sensor that is installed on a car to detect a human body and an operation signal of the human body detection sensor It is also possible to provide a control unit that controls the car to prevent the distance between the car and the hoistway ceiling from falling below a predetermined value.

Further, the linear motor drive type elevator apparatus according to the present invention is installed in a car, a counterweight, a counterweight rail which is installed in a hoistway and guides the counterweight, and a counterweight. A linear motor armature,
A secondary conductor of a near motor that is installed in the hoistway and that generates thrust by engaging with the armature of the linear motor, a suspension car installed at the top of the hoistway, and one end fixed to the car, and the other through the suspension car. In a linear motor drive type elevator device having a rope whose ends are fixed to a counterweight, at the time of inspection, engages with the counterweight at the lower part of the hoistway to prevent the counterweight from falling below a predetermined value. An inspection stopper may be detachably attached to the lower part of the hoistway.

[0021]

In the linear motor drive type elevator device according to the present invention, the suspension car is installed at an angle of less than 90 degrees with respect to the center line of the balance weight rail, whereby the car and the balance weight are installed close to each other. be able to.

Further, in the linear motor drive type elevator apparatus according to the present invention, the armature of the linear motor is disposed only on one end side of the counterweight, and the rope is fixed on the other end side upper portion of the counterweight, Since the suspension vehicle can be installed at a smaller angle with respect to the center line of the counterweight rail, the car and the counterweight can be installed closer to each other.

Also, in the linear motor drive type elevator apparatus according to the present invention, the suspension vehicle is installed in the space above the hoistway where the balance weights are opposed to each other in parallel to the center line of the balance weight rail. As a result, the car and the counterweight can be installed close to each other, and the car can be lifted up and down to the ceiling of the building without the car interfering with the suspension car.

In the linear motor drive type elevator apparatus according to the present invention, the second suspension vehicle installed near the first suspension vehicle and one end thereof are fixed on the side opposite to the counterweight of the balance weight of the car. By including a second rope whose other end is fixed to a counterweight via a suspension wheel, the second rope is
It works in the direction of reducing the moment applied to the car by the suspending force of the first rope.

Further, the linear motor drive type elevator apparatus according to the present invention is provided with an electromagnet for exerting a force between the rail and the car on the car in a direction in which the moment applied to the car by the suspension force of the rope is canceled. The electromagnet acts in a direction to reduce the moment applied to the car by the suspension force of the first rope.

Further, the linear motor drive type elevator apparatus according to the present invention is provided with the inspection opening on the side of the car facing the counterweight so that the equipment outside the car can be safely inspected from the inspection opening. It can be carried out.

Further, the linear motor drive type elevator apparatus according to the present invention is provided with the inspection opening on the upper side surface on the building side of the hoistway facing the counterweight.
Equipment in the hoistway can be safely inspected from the inspection opening.

The linear motor drive type elevator apparatus according to the present invention is installed in a hoistway near the uppermost floor, and is housed in the space where the car and the counterweight are facing each other during normal operation, and the car during inspection. By providing the inspection scaffold on the top floor that closes the elevating part, the equipment in the hoistway can be quickly and safely inspected on the inspection scaffold.

The linear motor drive type elevator apparatus according to the present invention is installed on a car to detect a human body, and a car is controlled by an operation signal of the human body detection sensor to control the distance between the car and the ceiling of the hoistway. By including a control unit that prevents the
With the human body detection sensor and control unit, it is possible to inspect the equipment in the hoistway while ensuring a safe top clearance dimension.

Further, in the linear motor drive type elevator apparatus according to the present invention, an inspection stopper is provided at the lower part of the hoistway to prevent the distance between the car and the hoistway ceiling from falling below a predetermined value by engaging with a counterweight. By detachably providing the lower part of the hoistway, it is possible to inspect the equipment in the hoistway while ensuring a safe top clearance dimension by the inspection stopper during installation and maintenance.

[0031]

【Example】

Example 1. An embodiment of the present invention will be described below with reference to the drawings. FIG. 1A is a plan view of a linear motor drive type elevator apparatus according to an embodiment of the present invention. FIG. 1B is a side view of FIG. In the figure, the same reference numerals as those in FIG. 13 indicate the same or corresponding portions. In the figure, 101 is a basket 1
One end of the rope 7 is fixed to the rope fixing plate 101 with a rope fixing plate attached to the lower part of the rope. The other end of the rope 7 is fixed to the counterweight 2 via the suspension wheel 5. The armature 3 of the linear motor mounted on the counterweight 2 is installed only on one side of the counterweight as shown in the figure. With this configuration, the suspension vehicle 5 is installed on the counterweight 2 side outside the car 1 at the upper part of the hoistway 8 and also the counterweight 2
Since it becomes possible to fix the rope 7 to the top of the end of the linear motor in which the armature 3 is not mounted, the angle θ is set with respect to the center line L1 connecting the car 1 and the counterweight 2 to the suspension vehicle 5. It can be installed in a large size. With this configuration, the A3 size can be made smaller than the A2 size in FIG. 15B. Reference numeral 10 is a rail for a counterweight. Further, since the suspension vehicle 5 is installed outside the counterweight 2 side of the car 1 above the hoistway 8, even if a person rides on the ceiling of the car 1 and works, the suspension vehicle 5 hits the head with the suspension vehicle 5. Since the top safety clearance TC0 can be made equal to the top clearance TC2 without the need, the height dimension of the building can be effectively utilized. Here, the case where the armature 3 of the linear motor is installed on one side of the counterweight 2 has been described.
When the armature 3 of the linear motor shown in FIG. 18A is installed on both sides of the counterweight 2, it is not possible to set a large angle θ, but by setting the angle θ within a space-allowed range, A3 The size can be reduced from the A2 size.

Example 2. 2 and 3 are explanatory views showing an embodiment of another aspect of the present invention. In the figure, the same reference numerals as those in FIG. 16 indicate the same or corresponding portions. In the figure, 101 is a rope fixing plate attached to the lower portion of the car 1, and one end of each of the pair of ropes 7 is fixed to the pair of rope fixing plates 101. The other end of each of the pair of ropes 7 is connected to each of the rope fixing portions 102 of the counterweight 2 via the suspension wheels 25 and 26.
It is fixed to. The rope fixing plate 101 and the rope fixing portion 102 are attached so as not to interfere with each other during lifting. The suspension cars 25 and 26 are mounted at a position lower than the ceiling 9 of the hoistway in parallel with the center line of the rail 10 by a mounting member 27, and the car 1 reaches the top floor in a portion where the car 1 does not collide with the hoistway. It is sometimes installed in the same or lower part as the ceiling of the car 1. FIG. 3 shows a state when the car 1 reaches the top floor in this embodiment, 19 is a door on the building side on the top floor, and 20 is a passenger in the car 1. In this case, when the car 1 is on the top floor, the suspension car 2
Since 5 and 26 are located lower than the ceiling of the car 1, the top clearance TC2 can be minimized, and the height of the building can be effectively utilized to the limit.

Example 3. FIG. 4 shows another aspect of how the armature 3 of the linear motor mounted on the counterweight 2 according to the second embodiment is mounted on the counterweight 2. In the figure, the armature 3 of the linear motor mounted in the central portion of the counterweight 2 is mounted vertically on the opposing surfaces of the car 1 and the counterweight 2, and the secondary conductor 4 is also the armature 3 of the linear motor. They are arranged in the same direction so that they engage with each other. Similar to the second embodiment, one end of each of the pair of ropes 7 is fixed to the pair of rope fixing plates 101, and the other end of each of the pair of ropes 7 is balanced through the suspension wheels 25 and 26. Is fixed to each of the rope fixing portions 102. Further, the rope fixing plate 101 and the rope fixing portion 102 are attached so as not to interfere with each other during the ascent and descent, and the state of the suspension cars 25 and 26 and the car 1 when the car 1 reaches the landing on the top floor is shown in FIG. Is the same as. In this embodiment, the armature 3 of the linear motor mounted in the central portion of the counterweight 2 has a car 1 and a counterweight 2
Since it is mounted vertically on the facing surface of No. 2, the thickness dimension D of the counterweight 2 can be made smaller than that of the counterweight shown in FIG.

Example 4. In the linear motor drive type elevator device of the present invention, as shown in FIGS. 1 to 4, since the car 1 is hung by the rope 7 fixed to the rope fixing plate 101 provided on the bottom of one side of the car 1, A moment F1 shown in FIG. 5 is applied to the car 1. Therefore, the car 1 moves along the car rails 11 so that the car 3 is moved up and down.
Since it is guided by 0A, 30B, 30C, and 30D, the moment F1 is applied to the car rail 11 and the roller 30.
There is a problem in that it is added during B, which raises and lowers noise and accelerates wear of the roller. FIG. 5 shows an embodiment of this measure. In the figure, the rope 31 is fixed to the upper portion of the car 1 on the opposite side to which the rope fixing plate 101 is provided, and is engaged with a spring 33 fixed to the counterweight 2 via a suspension wheel 31. Since the spring 33 applies a constant tension to the rope 31, the rope 31 generates a moment F2 in a direction of canceling the moment F1 and weakens the force applied between the car rail 11 and the roller 30B to raise and lower the sound and the roller. Controls wear.

Example 5. In addition, this embodiment shows another mode of the countermeasure against the above-mentioned moment F1. FIG. 6 is a plan view of the relationship between the conventional car rail 11 and the roller rails attached to the car 1 side as seen from above the car 1. In the figure, 37, 38, 39, 40 are
The rollers 41, 42 which are attached to the car 1 via springs and which engage with the rails 11 and support the X-axis direction of the car 1,
It is a roller that is attached to the car 1 via a spring and engages with the rail 11 to support the Y-axis direction of the car 1. Since the car 1 is suspended by the rope 7 by the rope fixing plate 101, the above-mentioned moment F1 / 2 acts between the car rail 11 and the rollers 37 and 39. FIG. 7 is a plan view of the relationship between the car rail 11 of the present invention and the rollers and rails mounted on the car 1 side as seen from above the car 1. In the figure, 43 and 44 are car rails 1.
It is an electromagnet which is attached with the car 1 facing 1 and generates a force F3 / 2 in the direction opposite to the above-mentioned moment F1 / 2. FIG. 8 is a side view of FIG. 7, in which the electromagnet 43 is attached to the upper portion of the car 1 so that the force F3 effectively acts on the moment F1. These electromagnets 43, 44
Force F3 acts in a direction to cancel the moment F1, so that the force applied between the car rail 11 and the rollers 37 and 39 is weakened, and the lifting noise and the wear of the rollers are suppressed.

Example 6. In the linear motor drive type elevator apparatus having the configurations shown in the first, second and third embodiments, the members such as the suspension wheels 5, 25 and 26 do not interfere with the car 1 being moved up and down. You can go up to just below the ceiling 9. However, while the height of the building can be effectively used, the safety dimension TC0 at the top is reduced, so it is necessary to enable safe work during installation and maintenance. The embodiment of the linear motor drive type elevator apparatus according to the present invention is designed to enable a worker to safely perform inspection work without riding on the car 1 as a measure for reducing the safety dimension TC0 at the top. FIG. 9 is a side view of the linear motor drive type elevator apparatus of the present invention, showing a state in which it is stopped at the top floor. In the figure, reference numeral 21 is an inspection opening provided in the car 1, which is closed by a locked door during normal operation. For inspection work, open the door and inspect the suspension vehicles 25 and 26 from the inspection opening 21A.
In some cases, a brake device (not shown) for stopping the raising and lowering of the car 1 may be engaged in the vicinity of 5, 26, and in this case, the brake device can be inspected. Further, by lowering the position of the car 1 and stopping it at the same height as the counterweight 2, it is possible to inspect the armature 3 and the brake device 13 of the linear motor arranged on the counterweight 2.

FIG. 10 is a side view showing another embodiment of the linear motor drive type elevator apparatus of the present invention.
It shows a state of being stopped on the top floor. In the figure,
Reference numeral 21A is an inspection opening provided on the building side of the hoistway wall facing the counterweight 2. The inspection opening 21A is closed by a locked door during normal operation.
The worker 20B opens the door and lifts the vehicle 2 from the inspection opening 21A.
5,26 and the accessories of the suspension vehicles 25,26 can be inspected.

Example 7. Although the sixth embodiment has described the example of the inspection work performed without getting on the upper portion of the car 1, it may be necessary to get on the upper portion of the car 1 depending on the work content. In this case, because the safety dimension TC0 at the top when the car 1 is on the top floor is reduced, there is a risk that a worker working on the car 1 may hit his head on the ceiling of the hoistway. Danger prevention measures are required. The embodiment of the linear motor drive type elevator apparatus of the present invention has a top safety dimension TC0.
As a measure for reducing the above, the worker who is working on the car 1 can safely perform the inspection work. FIG. 11 is a side view of the linear motor drive type elevator apparatus of the present invention, showing a state in which an operator is inspecting the equipment provided on the uppermost floor. In the figure, reference numeral 57 is a light emitting device of a human body detection sensor that detects an operator who is working on the top of the car 1, and is constituted by a light receiving device 51 that receives the light of the light emitting device 50 and outputs a signal. When the operator is working on the car 1, the operator interrupts the light emitted by the light emitting device 50, so that the light receiving device 51 stops the output signal to the control device of the linear motor driving device (not shown).
The control device controls the raising and lowering of the car 1 so that the car 1 secures a predetermined top safety dimension TC0, or performs control such that the car 1 can be operated only at a maintenance speed equal to or lower than a predetermined speed.

Reference numeral 52 is an inspection stopper that is detachably provided on the bottom of the hoistway. Inspection stopper 5
2 is erected at the bottom of the hoistway during maintenance, and engages with the lower portion of the counterweight 2 to prevent the car 1 from rising to a position where the top safety dimension TC0 is less than or equal to a predetermined value. With this configuration, the human body detection sensor 57 or the inspection stopper 52 ensures a predetermined safety dimension TC0 at the top, so that the operator can safely work on the upper portion of the car 1.

Example 8. FIG. 12 is an explanatory diagram of a linear motor drive type elevator apparatus showing an embodiment of another aspect of safety measures for inspection work near the top floor. In the figure, 5
3 is housed in the space FG where the car 1 and the counterweight 2 face each other during normal operation, and when inspecting, the elevating part of the car 1 is closed and it is tilted to the position EF which is almost coincident with the top floor. It is an inspection scaffold pivotally supported by the F part in the hoistway. The tip of the inspection scaffold 53 is tied to the wire 54,
Is connected to the hand-wound handle 55 so that it can be operated from the building side via the roller 56, and when the hand-wound handle 55 is turned, it falls from the FG position to the EF position and is turned in the opposite direction to the EF position.
It is designed to return from the position of to the position of FG. Further, by providing a sensor (not shown) that detects that the inspection scaffold 53 is not at the fixed position FG, it is possible to prevent the car 1 from running away to the inspection scaffold 53 due to an erroneous operation of the elevator device. With this configuration, the worker 20C when the inspection scaffold 53 is in the EF position
Can be safely transferred from the building side door 19 to the inspection scaffold 53.

[0041]

As described above, according to the present invention, the suspension vehicle is installed at an angle of less than 90 degrees with respect to the center line of the balance weight rail, so that the car and the balance weight are installed close to each other. Therefore, the size of the hoistway can be reduced.

Further, the armature of the linear motor is arranged only on one end side of the counterweight, and the rope is fixed to the upper part of the other end side of the counterweight so that the suspension vehicle can be supported by the centerline of the counterweight rail. Since it can be installed at a smaller angle with respect to, the size of the hoistway can be reduced by further installing the car and the counterweight close to each other.

Further, one end of the second suspension wheel installed near the first suspension vehicle is fixed to the side opposite to the counterweight of the balance weight of the car, and the other end is balanced through the second suspension vehicle. By including the second rope fixed to the second rope, the second rope works in the direction of reducing the moment applied to the car by the suspending force of the first rope, so that the raising and lowering noise and the wear of the roller can be suppressed.

Further, the electromagnet provided in the car so that the force acts between the rail and the car in the direction of canceling the moment applied to the car by the hanging force of the rope works in the direction of reducing the moment applied to the roller. Raising and lowering noise and roller wear can be suppressed.

Further, the equipment outside the car can be safely inspected through the inspection opening provided on the side of the car facing the counterweight.

Further, the equipment in the hoistway can be safely inspected from the inspection opening provided on the upper side surface of the hoistway wall facing the counterweight.

Also, installed in the hoistway near the top floor,
During normal operation, the car and the counterweight are stored in the facing space, and at the time of inspection, the inspection scaffold on the top floor that blocks the elevator of the car quickly and safely inspects the equipment in the hoistway near the top floor. It can be performed.

Further, the human body detection sensor installed on the car and detecting the human body, and the control signal for controlling the car by the operation signal of the human body detection sensor, prevent the distance between the car and the ceiling of the hoistway from falling below a predetermined value. The section allows a safe top clearance dimension to be secured and the equipment in the hoistway to be inspected.

Further, the inspection top stopper, which engages with the counterweight to prevent the distance between the car and the hoistway ceiling below the predetermined value at the bottom of the hoistway, prevents a safe top clearance dimension during installation and maintenance. The equipment in the hoistway can be inspected by ensuring the above.

[Brief description of drawings]

FIG. 1 is an explanatory diagram of a linear motor drive type elevator device in which a suspension vehicle according to an embodiment of the present invention is provided with an angle of less than 90 degrees with respect to a center line of a rail.

FIG. 2 is an explanatory diagram of a linear motor drive type elevator device in which a suspension vehicle according to an embodiment of the present invention is provided in parallel with a center line of a rail.

FIG. 3 is an explanatory view of a linear motor drive type elevator apparatus in which a suspension vehicle according to an embodiment of the present invention is provided in parallel with a center line of a rail, and a car is on the top floor.

FIG. 4 is an explanatory diagram of a linear motor drive type elevator apparatus in which an armature of a linear motor according to an embodiment of the present invention is provided at the center of a counterweight.

FIG. 5 is an explanatory diagram of a linear motor drive type elevator device that corrects a moment applied to a roller by a rope according to an embodiment of the present invention.

FIG. 6 is a plan view of a linear motor drive type elevator device showing a relationship between a conventional car rail and rollers provided in a car.

FIG. 7 is a plan view of a linear motor drive type elevator device that corrects a moment applied to a roller by an electromagnet according to an embodiment of the present invention.

FIG. 8 is a side view of FIG. 7.

FIG. 9 is an explanatory diagram of a linear motor drive type elevator device in which a car has an inspection opening according to an embodiment of the present invention.

FIG. 10 is an explanatory diagram of a linear motor drive type elevator device having an inspection opening on the building side of a hoistway according to an embodiment of the present invention.

FIG. 11 is an explanatory diagram of a linear motor drive type elevator device in which safety measures are taken by a human body detection sensor and an inspection stopper according to an embodiment of the present invention.

FIG. 12 is an explanatory diagram of a linear motor drive type elevator device provided with an inspection scaffold according to an embodiment of the present invention.

FIG. 13 is a configuration diagram of a conventional linear motor drive type elevator device.

FIG. 14 is an explanatory diagram of a conventional linear motor drive type elevator device provided with two suspension wheels.

FIG. 15 is an explanatory diagram of a conventional linear motor drive type elevator device provided with one suspension vehicle.

16 is a front view of the counterweight of FIGS. 14 and 15. FIG.

[Explanation of symbols]

 1 basket 2 counterweight 3 armature of linear motor 4 secondary conductor of linear motor 5,6,25,26 suspension vehicle 7,31 rope 8 hoistway wall 9 hoistway ceiling 10 counterweight rail 11 for car Rails 21 and 21A Inspection opening 42 and 43 Electromagnet 52 Inspection stopper 53 Inspection scaffold 57 Human body detection sensor

Claims (10)

[Claims] 1. A basket, a counterweight, a counterweight rail installed on the hoistway to guide the counterweight, a linear motor armature disposed on the counterweight, and a hoistway. Installed on the secondary conductor of the near motor that engages with the armature of the linear motor to generate thrust, and is disposed above the hoistway on the counterweight side from the facing surface of the counterweight of the car. In a linear motor drive type elevator device comprising a suspension wheel and a rope having one end fixed to a surface facing the counterweight of the car and the other end fixed to the counterweight via the suspension wheel, A linear motor drive type elevator apparatus in which a suspension vehicle is installed at an angle of less than 90 degrees with respect to a center line of a counterweight rail. 2. The linear motor according to claim 1, wherein the armature of the linear motor is arranged only on one end side of the counterweight, and the rope is fixed on the other end side upper portion of the counterweight. Motor drive type elevator equipment. 3. The suspension vehicle is installed parallel to the center line of the counterweight rail at the upper part of the hoistway on the side of the surface of the car facing the counterweight. The linear motor drive type elevator device described. 4. A basket, a counterweight, a counterweight rail installed on the hoistway to guide the counterweight, a linear motor armature disposed on the counterweight, and a hoistway. , A secondary conductor of a near motor that engages with the armature of the linear motor to generate thrust, a first suspension wheel installed at the top of the hoistway, and one end of which faces the counterweight of the car. In a linear motor drive type elevator device fixed to the surface side and having a first rope with the other end fixed to a counterweight via the suspension vehicle, a second suspension vehicle installed near the first suspension vehicle And a second rope having one end fixed to the opposite side of the face of the car facing the counterweight and the other end fixed to the counterweight via the second suspension wheel. Drive system elevator equipment. 5. A basket, a counterweight, a counterweight rail installed on the hoistway for guiding the counterweight, a linear motor armature arranged on the counterweight, and a hoistway. , A secondary conductor of a near motor that engages with the armature of the linear motor to generate thrust, a suspension wheel installed at the top of the hoistway, and one end of the car that faces the counterweight side. In a linear motor drive type elevator device having a rope fixed to the balance weight and the other end of which is fixed to the counterweight via the suspension wheel, in a direction in which the moment applied to the car by the suspension force of the rope is cancelled. A linear motor drive type elevator device, wherein the car is provided with an electromagnet for exerting a force between the cars. 6. A basket, a counterweight, a counterweight rail installed on the hoistway to guide the counterweight, a linear motor armature disposed on the counterweight, and a hoistway. , A secondary conductor of a near motor that engages with the armature of the linear motor to generate thrust, a suspension wheel installed at the top of the hoistway, and one end of the car that faces the counterweight side. In a linear motor drive type elevator device having a rope fixed to the balance weight and the other end fixed to the counterweight via the suspension wheel, a check opening is provided on the side of the car facing the counterweight. A linear motor drive type elevator device characterized by. 7. A basket, a counterweight, a counterweight rail installed on the hoistway for guiding the counterweight, a linear motor armature arranged on the counterweight, and a hoistway. , A secondary conductor of a near motor that engages with the armature of the linear motor to generate thrust, a suspension wheel installed at the top of the hoistway, and one end of the car that faces the counterweight side. In a linear motor drive type elevator device having a rope fixed to the balance weight and the other end fixed to the counterweight via the suspension vehicle, an inspection opening is formed on the upper side surface on the building side of the hoistway facing the counterweight. A linear motor drive type elevator apparatus comprising: 8. A basket, a counterweight, a counterweight rail installed on the hoistway to guide the counterweight, a linear motor armature disposed on the counterweight, and a hoistway. Installed on the secondary motor of the near motor that engages with the armature of the linear motor to generate thrust, a suspension vehicle installed in the space where the car and the counterweight above the hoistway face each other, and one end of the car In the linear motor drive type elevator device, which is fixed to the surface facing the counterweight and has the other end fixed to the counterweight via the suspension wheel, in a hoistway near the top floor. Equipped with a linear motor drive type elevator device, which is installed and is housed in the space where the car and the counterweight are facing each other during normal operation, and has an inspection scaffold on the top floor that blocks the elevator of the car during inspection. . 9. A basket, a counterweight, a counterweight rail installed on the hoistway for guiding the counterweight, an armature of a linear motor arranged on the counterweight, and a hoistway. The secondary conductor of the near motor which is installed in the linear motor and generates thrust by engaging with the armature of the linear motor, the suspension car installed at the upper part of the hoistway, and one end fixed to the car, through the suspension car. In a linear motor drive type elevator device having a rope with the other end fixed to a counterweight, a human body detection sensor installed on a car to detect a human body, and a car controlled by an operation signal of the human body detection sensor, A linear motor drive type elevator apparatus comprising a control unit for preventing the distance between the car and the ceiling of the hoistway from falling below a predetermined value. 10. A basket, a counterweight, a counterweight rail installed on the hoistway to guide the counterweight, a linear motor armature disposed on the counterweight, and a hoistway. The secondary conductor of the near motor which is installed in the linear motor and generates thrust by engaging with the armature of the linear motor, the suspension car installed at the upper part of the hoistway, and one end fixed to the car, through the suspension car. In a linear motor drive type elevator device equipped with a rope having the other end fixed to a counterweight, at the time of inspection, the counterweight is engaged with a counterweight to prevent the counterweight from falling below a predetermined value. A linear motor drive type elevator device characterized in that a check stopper is provided at the bottom of the hoistway.