JP2819347B2 - Simple elevator - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial Application Field] The present invention raises and lowers a cab by engagement of a rack and a pinion to ensure safety, and a small number of passengers are required.
The present invention relates to a simplified elevator that is economically advantageous in places with a small number of floors.

[Prior Art] Conventional elevators include a machine room in which a hoist, a starter, a control panel, and the like are installed, a cab including an automatic door opening and closing device, and a hoistway for the cab to move up and down. It is composed of The cab is connected to the counterweight by a rope, suspended by a sheave of a hoist in a hanging manner, and moved up and down along a guide rail by frictional force between the rope and the sheave.

[Problems to be Solved by the Invention] In this conventional technique, a system is employed in which a cab is hung by a rope and the rope is directly driven, so that even if the rope is cut, safety is ensured. However, there are severe restrictions on the control method. Therefore, there is a problem that it is naturally expensive, and it is economically disadvantageous where the number of getting on and off the passengers is small and where the number of floors is small.

The present invention has been made for the purpose of solving such problems of the prior art.

[Means for Solving the Problems] Means for solving the above problems will be described below with reference to FIG. 1 or FIG. 3 corresponding to the embodiment. According to the present invention, two sheaves 2 are mounted facing each other, a rack 3 is fixed vertically in the front side, and a support / guide rail 1 is provided upright, and a motor M A cab 4 having a pinion 5 connected to the motor M and meshing with the rack 3, and a plurality of guide rollers 6 for rolling the support and guide rails 1 in the vertical direction on the outside rear surface; A motor M, a worm 9 connected to the motor M, a worm gear 10 meshing with the worm 9, and a pinion 5 meshing with the worm gear 10 and meshing with the rack 3 are arranged on the upper surface. It comprises a cab 4 to which a plurality of guide rollers 6 rolling in the vertical direction are fixed, and a counterweight 7 connected to the cab 4 by two ropes 8 via two sheaves 2. Things.

[Operation] In the thus configured one, the car room 4 is moved up and down by the engagement of the rack 3 and the pinion 5, so that
In the unlikely event that the rope 8 connects the cab 4 and the counterweight 7
The cab 4 does not fall even if it breaks.

Embodiment FIG. 1 is a diagram showing an embodiment of the present invention. In FIG. 1, 1 is a support / guide rail, 2 is a sheave, 3 is a rack, 4 is a cab, M is a motor, 5 is a pinion, 6 is a guide roller, 7 is a counterweight, and 8 is a rope.

The support and guide rails 1 are columns, beams, etc. of a building (not shown).
It is fixed to and stands upright. The support / guide rail 1 is composed of a pair of I-shaped steel members 1A arranged at regular intervals (see FIG. 2 (a)). A sheave 2 is mounted on top of both I-beams 1A. On the right side on the front side of the front member of one I-section steel 1A, a rack 3 is fixed in the longitudinal direction, that is, in the vertical direction. On the left side on the front side of the front member of the other I-section steel 1A, a magnetic detector MD is fixed for each floor. These magnetic detectors MD are not vertically aligned but arranged diagonally, that is, arranged diagonally (see FIGS. 4A, 4B, and 4C).

The car room 4 has a motor M mounted on the outer upper surface thereof and a pinion 5 connected to the motor M. Motor M
Has a reducer and a brake. The pinion 5 is engaged with the rack 3. In addition, 4
The guide rollers 6 are fixed. The guide roller 6
A pair of rollers 6A arranged so as to sandwich the front member of the I-beam 1A, and a supporting member 6B on which these rollers 6A are mounted
(See FIG. 2A). Either one of the pair of rollers 6A rolls up and down on the front or back of the front member. Thus, the cab 4 is prevented from swinging in the front-rear direction, and the cab 4 is supported and guided. Further, a plurality of electromagnets EM are arranged in a horizontal row on the outside rear surface of the car room 4 (see FIG. 4D). Electric power is supplied to the motor M using a flexible insulated wire.

The balance weight 7 includes a balance rod 7A, and is arranged inside the support / guide rail 1, that is, between a pair of I-shaped steel members 1A arranged at regular intervals. The rope 8 is hung on the sheave 2, and both ends thereof are fixed to a balancing rod 7 </ b> A and a guide roller 6 located at an upper portion.

The motor M is attached to the cab 4 that moves up and down and is supplied with power using flexible insulated wires.
Limited to 4 floors or less. In addition, since the cab 4 moves up and down by the meshing of the rack 3 and the pinion 5, the weight is limited, and the number of people getting on and off is limited to one or two people. From this viewpoint, the height of the support / guide rail 1 and the size of the cab 4 are determined.

When the motor M is driven, the cab 4 moves up and down on the rack 3 by rotation of the pinion 5 while being supported and guided by the support and guide rails 1 by the guide rollers 6. Motor M
Stops, the electromagnetic clutch incorporated in the motor M operates, the mechanical brake is applied, and the cab 4 is stopped by the mechanical braking.

Since the cab 4 moves up and down by the engagement of the rack 3 and the pinion 5, even if the rope 8 connecting the cab 4 and the counterweight 7 is cut, the cab 4 does not fall and safety is ensured. . Therefore, there are no severe restrictions on the structure and control method, and it is economically advantageous where the number of getting on and off the passengers is small and the number of floors is small.

In the above, the support / guide rail 1 is composed of a pair of I-shaped steel members 1A arranged at regular intervals.
A pair of channel steels may be used instead of the I-beam 1A. As shown in FIG. 2 (b), a pair of channel steel 1B is used for the support / guide rail 1, and a pair of channel steel 1B is connected by a plate 1C, and the rack 3 is fixed to the plate 1C. Is also good. This facilitates the installation of the support / guide rail 1. In this case, the guide roller 6 is configured to roll the inner surface of the channel steel 1B with one roller 6C. In this way, the cab 4 can be brought closer to the support / guide rail 1, so that the required area can be reduced. When a pair of channel steels is used alone instead of the I-beam 1A, the same effect can be obtained by configuring the guide roller 6 in this manner.

Further, in the above, the pinion 5 meshing with the rack 3 is directly connected to the motor M, but as shown in FIG.
And a worm gear 10 that meshes with the worm 9 and is connected to the pinion 5. In this case, the axis of the motor M is arranged vertically,
A manual handle can be connected to the vertical axis from inside the cab 4 (not shown). In this way, the cab 4 can be moved up and down by operating the manual handle during a power failure. In FIG. 3, reference numeral 11 denotes a bearing, and 12 denotes a bearing support.

On each floor, a hall call button switch F, a door opening / closing motor (not shown), a door opening / closing relay DO, a door closing DC, a door closing confirmation switch LS, and a driving circuit relay D are installed. 4 is provided with a one-circuit configuration switch MS, a priority circuit relay Y, an electromagnet EM, a discriminator DU, and a converter CON. Then, when the call button switch F or the push button PB of the one-circuit configuration switch MS other than the stopped floor is pressed, the open / close door of the stopped floor is closed, and the car room 4 moves and stops at the required floor. The opening and closing door of the required floor is configured to open. The control system will be described with reference to FIG. FIG. 4 shows a case where the required number of floors is three and car room 4 is on the first floor.

If car room 4 is on the first floor, switch MS for one circuit configuration
Push button PB1 for the first floor is closed and relay X3 b for the third floor is closed.
Contact, b contact of relay X2 for second floor and relay X1 for first floor
Is closed, the electromagnet EM1 for the first floor is energized, and the magnetic detector MD1 for the first floor facing the electromagnet EM1 for the first floor is operating. The contact a of the magnetic detector MD1 for the first floor is closed, the open door relay DO1 for the first floor opening / closing door is energized, and the first floor opening / closing door is open. In this case, the electromagnets EM2,3 for the second and third floors are deenergized, the magnetic detectors MD2,3 for the second and third floors do not operate, their b contacts are closed, and the second and third floors are closed. The door is closed. The relays Y1, 2, 3 for each floor of the priority circuit are all de-energized and all their b contacts are closed.

When the third floor call button switch F3 is pressed, the third floor relay X3 of the one-circuit configuration switch MS is activated via the third floor relay Y3 of the priority circuit. Call button switch on the 3rd floor
F3 has a built-in holding relay and is self-holding, so it continues to operate. Then, the push button PB1 for the first floor of the switch MS for one circuit configuration is opened, and the push button PB3 for the third floor is closed,
The b contact of the relay X3 for the third floor and the a contact of the relay X1 for the first floor are open, and the a contact of the relay X3 for the third floor and the b contact of the relay X1 for the first floor are closed. Therefore, the electromagnet EM1 for the first floor
Is deenergized, the magnetic detector MD1 for the first floor is deactivated, the contact a of the magnetic detector MD1 for the first floor is opened, and the contact b is closed. Then, the closed door relay DC1 for the first floor opening / closing door is energized, and the opened first floor opening / closing door is closed. When the opening / closing door on the first floor is closed, the door closing confirmation switch LS1 on the first floor
Is closed, the relay D1 for the drive circuit on the first floor is energized, and its a contact is closed, and the magnetic detectors MD1, 2, 2,.
A drive circuit is formed through the third contact point b. Then, the discriminator DU determines that the command is an up command because the electromagnet EM1 for the first floor has been switched from energized to deactivated and the electromagnet EM3 for the third floor has been switched from deactivated to energized. , The up contact “up” is closed, and the motor M is driven. The driving of the motor M raises the cab 4 to reach the third floor. When the third floor is reached, the energized electromagnet EM3 for the third floor and the magnetic detector MD3 for the third floor are opposed, and the magnetic detector MD3 for the third floor operates. The contact b of the magnetic detector MD3 for the third floor is opened, the drive circuit is opened, and the motor M stops. When the motor M stops, the electromagnetic clutch built into the motor M operates,
The mechanical brake is applied, and the cab 4 is stopped on the third floor by mechanical braking. At the same time, the contact a of the magnetic detector MD3 for the third floor is closed, the open door relay DO3 for the third floor opening / closing door is energized, and the third floor opening / closing door is opened. Magnetic detector for 3rd floor
The timed contact b of MD3 opens after the door on the third floor opens. Therefore, the relay X3 for the third floor of the priority circuit is deactivated.

From the pressing of the third floor call button switch F3 until the opening of the third floor door, the relay Y3 for the third floor of the priority circuit is energized and its b contact is open, so the first or second floor call button switch. Switch for one-circuit configuration even if F1 and 2 are pressed
The relays X1, 2 for the first or second floor of the MS are not activated.

When cab 4 is on the first floor, a passenger gets into cab 4, and pushes pushbutton PB3 for the third floor, relay X3 for the third floor.
The contact b of the relay X1 for the first floor and the contact a of the relay X3 for the third floor and the contact b of the relay X1 for the first floor are closed. Therefore, the electromagnet EM1 for the first floor is deenergized, the magnetic detector MD1 for the first floor is deactivated, and the contact a of the magnetic detector MD1 for the first floor is opened and the contact b is closed. And 1
The closed door relay DC1 for the floor opening / closing door is energized, and the opened floor opening / closing door is closed. When the opening / closing door on the first floor is closed, the door closing confirmation switch LS1 on the first floor is closed, the relay D1 for the drive circuit is energized, its a contact is closed, and the magnetic detectors MD1, 2, and 2 for each closed floor are closed. A drive circuit is formed through the third contact point b. Then, the discriminator DU determines that the command is an up command because the electromagnet EM1 for the first floor has been switched from energized to deactivated and the electromagnet EM3 for the third floor has been switched from deactivated to energized. , Close the up contact up and set the motor M
Drive. By driving the motor M, the cab 4 is raised.

During this ascent process, call button switch F2 on the second floor
Is pressed, the b contacts of the relays Y1, 2, and 3 of the priority circuit are all closed, so that the relay X2 for the second floor of the switch MS for one-circuit configuration is connected via the relay Y2 for the second floor of the priority circuit. Be energized. Push button for 3rd floor of 1-circuit configuration switch MS
PB3 opens, the push button PB2 for the second floor closes, the a contact of the relay X3 for the third floor and the b contact of the relay X2 for the second floor open,
The contact b of the relay X3 for the third floor and the contact a of the relay X2 for the second floor are closed. Therefore, the electromagnet EM3 for the third floor is deenergized, and the electromagnet EM2 for the second floor is energized. However, the discriminator DU determines that the command is a raising command, and the driving of the motor M causes the cab 4 to move. Ascend to the second floor. On the second floor, the energized electromagnet EM2 for the second floor and the magnetic detector M for the second floor
D2 faces and the magnetic detector MD2 for the second floor operates.
The contact b of the magnetic detector MD2 for the second floor is opened, the drive circuit is opened, and the motor M stops. When the motor M is stopped, the electromagnetic clutch built in the motor M is operated to apply a mechanical brake, and the cab 4 is stopped on the second floor by the mechanical braking. At the same time, the contact a of the magnetic detector MD2 for the second floor is closed, the opening door relay DO2 for the second floor opening / closing door is energized, and the second floor opening / closing door is opened.

When push button PB3 for the third floor of cab 4 is pressed, cab 4
Goes to the third floor by the same operation.

[Effects of the Invention] As described above, according to the present invention, two sheaves are mounted on top of each other, a rack is fixed vertically in the front side, and the support and support stands upright. Guide rails,
A motor and a pinion that is connected to the motor and meshes with the rack are disposed on the outer upper surface, and the support /
A cab in which a plurality of guide rollers for rolling the guide rails in the vertical direction are fixed, or a motor on the outer upper surface, a worm connected to the motor, a worm gear meshing with the worm, and a worm gear connected to the worm, and A pinion that meshes with the rack is arranged, and the support /
A cab in which a plurality of guide rollers for rolling the guide rails in the vertical direction are fixed, and a balancing weight connected to the cab by two ropes via the two sheaves. It is. Therefore, the cab moves up and down by the meshing of the rack and the pinion, so that even if the rope connecting the cab and the counterweight is cut, the cab does not fall and safety is ensured. Therefore, according to the present invention, there is no strict restriction on the structure and the control method, and there is obtained an effect that it is economically advantageous in places where the number of passengers is small and the number of floors is small.

[Brief description of the drawings]

1 (a) is a plan view, FIG. 1 (b) is a front view, FIG. 1 (c) is a right side view, and FIGS. FIG. 3 is a view showing a main part of another embodiment of the present invention, in which FIG. 3 (a) is a plan view, FIG. 3 (b) is a front view, and FIG. 4 shows a control system of the present invention. FIG. 1 ... support / guide rail, 2 ... sheave, 3 ... rack,
4 ... cab, M ... motor, 5 ... pinion, 6 ...
Guide roller, 7 ... balance weight, 8 ... rope.

Continued on the front page (51) Int.Cl. ⁶ Identification symbol FI B66B 13/14 B66B 13/14 E (72) Inventor Kenichi Takahi 1-2-23 Ikenota, Taito-ku, Tokyo Nihon Dentsu Kogyo Co., Ltd. ( 56) References JP-A-63-310487 (JP, A) JP-A-52-155748 (JP, A) JP-A-48-94134 (JP, A) Fully open Showa 52-123566 (JP, U) Fully open Showa 61-130572 (JP, U) Actually open Showa 62-108385 (JP, U) (58) Fields investigated (Int. Cl. ⁶ , DB name) B66B 1/14 B66B 7/02 B66B 9/02 B66B 13 /14

Claims (9)

(57) [Claims] An upper support is provided with two sheaves opposed to each other, a rack fixed vertically on the front side, and an upright supporting / guide rail; a motor on the outer upper surface; A cab in which a pinion meshing with the rack is arranged, and a plurality of guide rollers for rolling the support and guide rails in the vertical direction are fixed to the outside rear surface, and the two sheaves Simple elevator consisting of a counterweight connected to the cab by two ropes 2. A sheave having two sheaves mounted opposite to each other on the upper side, a rack fixed vertically in the front side, and a support / guide rail erected, a motor on the outer upper surface, and the motor A worm connected to the worm, a worm gear meshing with the worm, and a pinion connected to the worm gear and meshing with the rack are arranged, and the support
A simple cab having a plurality of guide rollers for rolling the guide rails in the vertical direction, and a counterweight connected to the cab by two ropes via the two sheaves. Type elevator 3. The system according to claim 1, wherein a plurality of magnetic detectors are arranged diagonally in a row on the support / guide rail, and a plurality of electromagnets are arranged in a horizontal row on the outside rear surface of the cab. Simple elevator 4. Each floor is provided with a hall call button switch, a door opening / closing motor, a door opening / closing relay, a closed door relay, a door closing confirmation switch and a driving circuit relay. Circuit configuration switches,
When the priority circuit relay, electromagnet, discriminator and converter are installed and the call button switch or the one-circuit configuration switch push button other than the stopped floor is pressed, the open / close door of the stopped floor closes. The simple elevator according to any one of claims 1 to 3, wherein the cab moves and stops at a required floor, and an opening / closing door of the required floor is opened. 5. The simplified elevator according to claim 1, wherein the support and guide rails are made of a pair of I-shaped steels arranged at a constant interval. 6. The simplified elevator according to claim 1, wherein the support and guide rails are made of a pair of channel steels arranged at a constant interval. 7. A simple elevator according to claim 1, wherein the guide roller is constituted by a pair of rollers arranged so as to sandwich the front member of the support / guide rail. 8. The simplified elevator according to claim 1, wherein the support and guide rails are composed of a pair of channel steels arranged at regular intervals and a plate material connecting the channel steels. 9. The simplified elevator according to claim 6, wherein the guide roller is constituted by one roller disposed inside the support / guide rail.