JP4854135B2 - Stopper structure of variable double deck elevator - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a double deck elevator in which an upper cab and a lower cab stacked in two upper and lower tiers are moved quickly at the same time so that the interval between the cabs can be adjusted according to the floor height. The present invention relates to a stopper structure for mechanically restricting the movement of the space between an upper car room and a lower car room as a safety device.
[0002]
[Prior art]
2. Description of the Related Art Conventionally, as a double deck elevator having a two-story structure in which car rooms are stacked up and down, for example, there are those shown in FIGS. 9 to 11 filed by the applicant of the present application (see Japanese Patent Laid-Open No. 10-279231). . The double-deck elevator has two cabs at the top and bottom, so it has the advantages of high transportation capacity and reduced area occupied in the building.
[0003]
In FIG. 9, two car rooms 2, 3 are stacked one above the other in one car frame 1, and the other end of the rope 4 having a counterweight 6 fixed to one end is fixed to the upper part of the car frame 1. The car frame 1 is moved up and down along the main guide rails 7a and 7b by the hoisting machine 5 through the rope 4. The two car chambers 2 and 3 are moved simultaneously in the opposite directions along the sub guide rails 12a and 12b provided in the car frame 1 so that the vertical distance between the car chambers can be expanded and contracted. The vertical movement between the upper and lower cabs 2 and 3 is performed by using the pantograph-shaped link mechanism 14 as shown in FIG. 10, and the motor drive mechanism 21 shown in FIG. 9 or the hydraulic unit 33 shown in FIG. The upper cab 2 is moved up and down by hydraulic cylinders 31 and 32 by driving.
[0004]
By the way, the floor height (interval between floors) of all floors of a building where an elevator is installed is not necessarily constant, and the floor height is often different depending on the floor. When the floor heights are different as described above, the upper cab 2 is moved up and down by the hydraulic drive cylinders 21 and 32 driven by the hydraulic drive from the hydraulic drive unit 21 and the hydraulic unit 33, and the link mechanism 14 is expanded and contracted. By moving the lower cab 3 simultaneously in the reverse direction by the action, the vertical distance between the upper and lower cabs is expanded and contracted, and the vertical distance is adjusted to the floor height.
[0005]
Here, the link mechanism 14 includes first and second link arms 15 and 16 rotatably provided on a support frame 1a having a substantially central portion at a substantially central portion of the car frame 1, and the first and second link arms 14. Third and fourth link arms 17 and 18 that are rotatably connected to the upper ends of the link arms 15 and 16, and fifth and fifth links that are rotatably connected to the lower ends of the first and second link arms 15 and 16. The sixth link arms 19 and 20 are configured. The upper half of the first and second link arms 15 and 16 and the third and fourth link arms 17 and 18 have a rhombus pantograph shape, and the lower half of the first and second link arms 15 and 16. The fifth and sixth link arms 19 and 20 form a rhombus pantograph shape. The upper ends of the third and fourth link arms 17 and 18 are rotatably connected to the upper car chamber 2, and the lower ends of the fifth and sixth link arms 19 and 20 are rotatably connected to the lower car chamber 3. Yes.
[0006]
The upper cab 2 tries to expand between the turning pair consisting of the first and third link arms 15 and 17 and the turning pair consisting of the second and fourth link arms 16 and 18 in the upper half of the link mechanism by its weight. At the same time, the lower half of the link mechanism also attempts to expand between the pair of turns of the first and fifth link arms 15 and 19 and the pair of second and sixth link arms 16 and 20. For this reason, due to the weight of the upper cab 2, a force that pulls upward through the link mechanism 14 acts on the lower cab 3. Since the weight of the upper cab 2 and the lower cab 3 are the same, the upper cab 2 and the lower cab 3 are exactly balanced. When a passenger or the like gets on the vehicle, if there is a difference between the weight of the upper cab 2 and the weight of the lower cab 3 with the added weight, the weight of the difference is calculated by the motor drive mechanism 21 and the hydraulic cylinders 31 and 32. While supporting, the vertical movement of the upper cab 2 is driven. Therefore, since the motor drive mechanism 21 and the hydraulic cylinders 31 and 32 need only drive the difference in weight between the upper and lower cabs 2 and 3 including passengers, the driving force is small.
[0007]
The operation of expanding and contracting the vertical distance between the upper and lower cabs 2 and 3 to match the floor height is performed as follows. First, when a destination floor button is pressed by a passenger in the upper and lower cabs 2 and 3, a signal is output from the destination floor button to a control device (not shown). Next, the control device outputs a signal to the hoisting machine 5 and causes the upper and lower cabs 2 and 3 to travel toward the destination floor. Here, the control device calculates an appropriate interval between the upper and lower cabs 2 and 3 on the destination floor, and drives the motor drive mechanism 21 or the hydraulic cylinders 31 and 32 according to the calculated appropriate interval. At this time, the upper and lower cabs 2 and 3 are simultaneously moved in opposite directions via the link mechanism 14, and the vertical distance between them is quickly adjusted. Whether the upper and lower cabs 2 and 3 are at proper intervals is detected by a car interval detector (not shown), and if appropriate, the motor drive mechanism 21 or the hydraulic cylinders 31 and 32 are stopped. Subsequently, whether or not the upper and lower cabs 2 and 3 have arrived at the destination floor is detected by a car position detector (not shown), and when they arrive, the driving of the hoisting machine 5 is stopped.
[0008]
According to such a configuration, since the upper and lower cabs can be moved simultaneously by the link mechanism provided between the upper cab and the lower cab, the distance between the upper and lower cabs can be adjusted quickly. In addition, the upper and lower cabs are balanced so that the motor drive mechanism and hydraulic cylinder need only a small driving force, and can be made compact and lightweight. Reduction and running cost can be reduced.
[0009]
[Problems to be solved by the invention]
However, in such a conventional double-deck elevator, the upper and lower two-stage cabs 2 and 3 may move regardless of the purpose of the maintenance and inspection work, and some work cannot be performed. And there was a problem that the worker was in danger.
[0010]
Accordingly, the present invention provides a variable double deck elevator in which an upper car room and a lower car room stacked in two upper and lower stages are moved at the same time so that the car interval can be adjusted according to the floor height. It is an object of the present invention to provide a stopper structure that mechanically regulates the mutual movement of the space between the upper car room and the lower car room as a safety device.
[0011]
[Means for Solving the Problems]
In order to solve the above-mentioned problems, the invention according to claim 1 is engaged with a car frame that is guided by a main guide rail and moves up and down, and a sub guide rail provided on the car frame so as to be movable up and down. an upper cab and lower cabs are, driving means for vertically moving one of said upper cab or the lower cage chamber, the cage part is interposed between the upper cage chamber and the lower cage chamber the variable double deck elevator comprising a link mechanism engaged with the frame to scaling move up and down distance between the upper cage chamber and the lower cage chamber by the vertical movement,
The regulating means for mechanically restricting the scaled movement of the upper and lower gap between the lower cage chamber and the upper cab provided,
The restricting means is provided with a pair of support plates at a substantially central portion of the car frame, and rotatably supports the two link arms constituting the link mechanism via a shaft provided between the pair of support plates. The upper cage is sandwiched between the two link arms by forming insertion holes at two locations of the pair of support plates and inserting them into the two insertion holes of the pair of support plates, respectively. Two stoppers for restricting the movement of the chamber and the lower cab are provided .
[0012]
According to a second aspect of the present invention, there is provided a car frame that is guided by a main guide rail and moves up and down, and an upper car room and a lower car that are movably engaged with a sub guide rail provided on the car frame. a chamber, said upper cab or driving means for vertically moving one of said lower cab, partially interposed between the lower cage chamber and the upper cab is locked to the car frame the the variable double deck elevator comprising a link mechanism for scaling moving the vertical distance between the lower cage chamber and the upper cage chamber by vertical movement,
The regulating means for mechanically restricting the scaled movement of the upper and lower gap between the lower cage chamber and the upper cab provided,
The restricting means is provided with a support frame on the car frame, the base end portions of the two stopper arms are rotatably provided at positions separated from each other, and the distal end portions of the respective stopper arms are connected to each other. Then, a connecting part is provided, and the connecting part is connected to the upper car room or the lower car room .
[0020]
In the present invention, by the above stopper structure, a link mechanism is provided between the upper cab and the lower cab so that the interval between the upper cab and the lower cab can be adjusted quickly, so that the maintenance inspection can be performed in the variable double deck elevator. At any time, it is possible to mechanically regulate the movement of the upper and lower cabs as a safety device regardless of the work content.
[0021]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings. In this embodiment, as a safety device for maintenance inspection and the like with respect to the conventional variable double deck elevator described with reference to FIGS. 9 to 11, the expansion / contraction movement between the upper and lower cabs is mechanically restricted. A stopper structure for this will be described. In the drawings used in the following description, the same reference numerals are used for the same members as in FIGS.
[0022]
FIG. 1 is a diagram showing a configuration of a stopper structure according to a first embodiment of the present invention.
[0023]
In FIG. 1, 2 is an upper car room, 3 is a lower car room, and is arranged in two upper and lower stages on one car frame shown in FIG. 9, and the upper car room 2 is moved up and down. Then, the lower cab 3 is simultaneously moved in the opposite direction by the link mechanism 14, and the interval between the upper cab 2 and the lower cab 3 is enlarged or reduced.
[0024]
The link mechanism 14 includes first and second link arms 15 and 16 provided so as to be rotatable with respect to the support frame 1a having a substantially central portion at a substantially central portion of the car frame, and the first and second link arms 15. , 16 are pivotally connected to the upper ends of the third and fourth link arms 17, 18, and fifth and sixth links are pivotally connected to the lower ends of the first and second link arms 15, 16. The arm 19 and 20 are comprised. The upper half of the first and second link arms 15 and 16 and the third and fourth link arms 17 and 18 have a rhombus pantograph shape, and the lower half of the first and second link arms 15 and 16. The fifth and sixth link arms 19 and 20 form a rhombus pantograph shape. The upper ends of the third and fourth link arms 17 and 18 are rotatably connected to the upper car chamber 2, and the lower ends of the fifth and sixth link arms 19 and 20 are rotatably connected to the lower car chamber 3. Yes.
[0025]
Reference numeral 41 shown in FIG. 1 is a stopper structure in this embodiment. The stopper 41 is formed in a bar shape and is provided with, for example, notches at both ends thereof. The notches and the like are connected to shafts such as shafts of rotating pairs formed by the first and third link arms 15 and 17, and It is a locking member that prevents the two pairs of rotating pairs from expanding and contracting by being locked to each of the shafts of the rotating pairs of the fourth link arms 16, 18. As described above, the stopper structure of the present embodiment example has an advantage that it is very small and the method of use is extremely simple.
[0026]
The stopper 41 is engaged with each of a pair of rotating pairs formed of the first and fifth link arms 15 and 19 and a pair of rotating pairs formed of the second and sixth link arms 16 and 20, respectively. It is possible to prevent the pair of pairs of pairs from expanding and contracting, and similarly, the pair of pairs of pairs of the first and third link arms 15 and 17 and the second and sixth link arms 16 and 20 of the pair of turns. It is locked to each of the shafts, or it is locked to each of the pair of rotating pairs consisting of the second and fourth link arms 16 and 18 and the pair of rotating pairs consisting of the first and fifth link arms 15 and 19. May be. Also, instead of locking both ends of the stopper to the shaft of each pair of turns, a protrusion or hole is provided in the link arm that forms each pair of turns, and a shape that locks it is formed at both ends of the stopper You may make it do.
[0027]
FIG. 2 is a front view (a) and a side view (b) showing the configuration of the stopper structure of the second embodiment of the present invention. In FIG. 2, the configuration and operation of the upper cab 2, the lower cab 3, and the link mechanism are the same as those in the first embodiment. However, as shown in FIG. The mechanism is composed of two symmetrical parts 14a and 14b.
[0028]
In FIG. 2 (b), it shows the stopper structure 42 according to this embodiment. The stopper structure 42 is constituted by the stopper 42a, the stopper 42a, as well as provided to the support frame 1a of the car frame 1, which supports the first, the axes of the second link arms 15 and 16 rotatably each supporting plate 1b, the insertion hole 1d opened in each of two places 1c, it is inserted into 1e, to regulate the first, second link arms 15 and 16 move between. Here, the insertion holes 1d and 1e are formed in the horizontal direction, and stoppers 42a are inserted into the insertion holes 1d and 1e so as to be sandwiched between the left and right of the first and second link arms 15 and 16 , respectively. The movement of the stoppers 42a and 14b is restricted so that the distance between the upper and lower cabs 2 and 3 cannot be reduced by, for example, fixing the stoppers 42a with nuts so that the stoppers 42a are not easily pulled out . As described above, the stopper structure of the present embodiment is also very small and has an advantage that the method of use is extremely simple.
[0029]
In order to restrict the distance between the upper and lower cabs 2 and 3 to be increased, the support plates 1b and 1c are enlarged in the vertical direction, the insertion holes are opened in the vertical direction, and the inserted stopper is the first and second stoppers. The second link arms 15 and 16 may be sandwiched between the upper and lower sides.
[0030]
FIG. 3 is a diagram showing a configuration of a stopper structure according to a third embodiment of the present invention.
In FIG. 3, the configurations and operations of the car frame 1, the upper car room 2, the lower car room 3, and the link mechanism 14 are the same as those in the first embodiment.
[0031]
FIG. 3 shows a stopper structure 43 in this embodiment. In this stopper structure 43 , the base end portions of the two stopper arms 43a and 43b are rotatably provided at positions separated from each other of the support frame 1a of the car frame 1 , and the distal ends of the two stopper arms 43a and 43b are provided. The parts are connected to each other to provide a connecting part, and the connecting part is connected to the lower end of the upper car room 2 so that the upper car room 2 is fixed with respect to the car frame 1 and restricted from moving. This prevents the link mechanism 14 from moving, and at the same time prevents the lower cab 3 from moving. When the two stopper arms 43a and 43b are not used, the two stopper arms 43a and 43b are rotated and folded into the storage place 1f provided in the support frame 1a. For this reason, the stopper structure of the present embodiment has advantages that it is small in size, does not require a storage place, and is very easy to use.
[0032]
By connecting the distal ends of the two stopper arms 43a and 43b to provide a connecting portion, and connecting the connecting portion to the upper end of the lower cab 3 to restrict the lower cab 3 from moving. The link mechanism 14 may not be moved, and at the same time, the upper cab 2 may not be moved.
[0033]
FIG. 4 is a diagram showing a configuration of a stopper structure according to a fourth embodiment of the present invention. In FIG. 4, the configurations and operations of the car frame 1, the upper car room 2, the lower car room 3, and the link mechanism 14 are the same as those in the first embodiment.
[0034]
44a and 44b shown in FIG. 4 are stopper structures in the present embodiment. The stoppers 44a and 44b are integrated stoppers that fix the upper and lower cabs 2 and 3 so as not to move by fixing the upper end to the lower end of the upper cab 2 and the lower end to the upper end of the lower cab 3. It is. For this reason, installation is easy and there exists an advantage which can be manufactured at low cost.
[0035]
Note that. Although an example using two stoppers has been described above, the present invention may be one or three or more.
[0036]
FIG. 5 is a diagram showing a configuration of a stopper structure according to a fifth embodiment of the present invention. In FIG. 5, the configurations and operations of the car frame 1, the upper car room 2, the lower car room 3, and the link mechanism 14 are the same as those in the first embodiment.
[0037]
45a and 45b shown in FIG. 5 are stopper structures in the present embodiment. The stoppers 45a and 45b are fixed at the upper end to the lower end of the upper car chamber 2 and fixed at the lower end to the support frame 1a of the car frame 1 so that the upper car chamber 2 does not move relative to the car frame 1. . This prevents the link mechanism 14 from moving, and at the same time prevents the lower cab 3 from moving.
[0038]
Like the fourth embodiment, the stoppers 45a and 45b are easy to install and can be manufactured at a low cost. In addition, the stoppers 45a and 45b can be manufactured in a smaller size than the fourth embodiment. There is. For this reason, it is possible to provide the storage place 1g near the support frame 1a and store the removed stoppers 45a and 45b.
[0039]
In addition, although the example using two stoppers was shown also in the above, as this invention, one may be sufficient and three or more may be sufficient. Alternatively, the lower end may be fixed to the upper end of the lower car chamber 3, and the upper end may be fixed to the support frame 1 a of the car frame 1 so that the lower car chamber 3 does not move relative to the car frame 1.
[0040]
FIG. 6 is a diagram showing a configuration of a stopper structure according to a sixth embodiment of the present invention. In FIG. 6, the configurations and operations of the car frame 1, the upper car room 2, the lower car room 3, and the link mechanism 14 are the same as those in the first embodiment.
[0041]
46a and 46b shown in FIG. 6 are stopper structures in the present embodiment. As in the fifth embodiment, the stoppers 46a and 46b are fixed at the tip to the lower end of the upper car chamber 2 and fixed at the other end to the support frame 1a of the car frame 1, thereby It is fixed so as not to move with respect to the frame 1, but a different point is that it has a telescoping structure that can expand and contract and can be fixed when extended.
[0042]
For this reason, when the stoppers 46a and 46b are not used, the storage space for the stoppers can be made unnecessary by removing the fixing of the upper cab 2 and the fixing of the telescopic structure and retracting it to the support frame 1a side. There is an advantage that the method of using the stopper is simple.
[0043]
Note that. Although the example which uses two stoppers was shown also in the above, as this invention, one may be sufficient and three or more may be sufficient. Alternatively, the front end may be fixed to the upper end of the lower car chamber 3 and the other end may be fixed to the support frame 1 a of the car frame 1 so that the lower car chamber 3 does not move relative to the car frame 1.
[0044]
FIG. 7 is a front view (a) and a side view (b) showing the configuration of the stopper structure of the seventh embodiment of the present invention. In FIG. 7, the configuration and operation of the upper cab 2 and the lower cab 3 and the link mechanism are the same as those in the first embodiment. However, as shown in FIG. The mechanism is composed of two symmetrical parts 14a and 14b.
[0045]
Reference numerals 47a and 47b shown in FIG. 7 are stopper structures in the present embodiment. The stoppers 47a and 47b are the upper ends of the lower cab 3 and are mounted side by side in the orthogonal direction between the two link mechanisms. Stopper receivers 48a and 48b are attached to the lower end of the upper cab 2 at positions facing the stoppers 47a and 47b. When the upper cab 2 moves so as to reduce the distance from the lower cab 3, the stoppers 47a and 47b abut against the stopper receivers 48a and 48b, so that the length including the stoppers 47a and 47b and the stopper receivers 48a and 48b does not exceed. The distance between the upper cab 2 and the lower cab 3 is regulated so that it does not occur.
[0046]
The stopper structure of the present embodiment can be used as a shock absorber as a safety device when the upper cab 2 and the lower cab 3 move up and down. That is, when an abnormality occurs in the brake system in the drive means such as the motor drive mechanism 21 and the hydraulic cylinders 31 and 32 shown in FIG. 10, it also serves as a device for reducing the impact. In the stopper according to the present embodiment, the stopper and the stopper receiver are separately installed in the link mechanism, so that the space of the link mechanism can be used effectively. Further, since the stopper receiver is provided, the height dimension of the stopper itself can be reduced, and an advantage that a safe space can be secured as a whole is obtained. Further, in combination with FIG. 1 and FIG. 2, it can be used as a double safety device at the time of maintenance and inspection.
[0047]
The present invention can be applied to a case where there is only one link mechanism, and the number of sets of stoppers and stopper receivers may be one, or three or more.
[0048]
FIG. 8 is a diagram showing a configuration of a stopper structure according to an eighth embodiment of the present invention. In FIG. 8, the configuration and operation of the car frame 1, the upper car room 2, the lower car room 3, and the link mechanism 14 are the same as those in the first embodiment.
[0049]
49a and 49b shown in FIG. 8 are stopper structures in the present embodiment. The stoppers 49 a and 49 b are L-shaped stoppers that fix the upper end of the upper cab 2 and the inner side surface of the car frame 1 when an operator gets on the upper cab 2. As a result, the upper cab 2 is fixed so as not to move relative to the car frame 1 so that the link mechanism 14 does not move, and at the same time the lower cab 3 does not move. Therefore, the stoppers 49a and 49b are small in size, easy to use, and have an advantage that the fixing position of the link mechanism 14 can be adjusted.
[0050]
The stoppers 49a and 49b may be fixed to the lower end of the upper car chamber 2 and the inner side surface of the car frame 1, or to the upper end and lower end of the lower car chamber 3 and the inner side surface of the car frame 1. It may be a thing.
[0051]
In the above embodiment example, the example in which the driving means such as the motor driving mechanism and the hydraulic cylinder is applied to the double deck elevator in which the upper cab is moved is shown. It can also be applied to a moving double deck elevator.
[0052]
【The invention's effect】
As described above, according to the present invention, in the variable double deck elevator in which the link mechanism is provided between the upper car room and the lower car room so that the interval between the upper car room and the lower car room can be adjusted quickly. As a safety device during maintenance and inspection, it is possible to mechanically restrict the movement of the upper and lower cabs.
[Brief description of the drawings]
FIG. 1 is a configuration diagram showing a stopper structure according to a first embodiment of the present invention.
FIGS. 2A and 2B are configuration diagrams showing a stopper structure according to a second embodiment of the present invention. FIGS.
FIG. 3 is a configuration diagram showing a stopper structure according to a third embodiment of the present invention.
FIG. 4 is a configuration diagram showing a stopper structure according to a fourth embodiment of the present invention.
FIG. 5 is a configuration diagram showing a stopper structure according to a fifth embodiment of the present invention.
FIG. 6 is a configuration diagram showing a stopper structure according to a sixth embodiment of the present invention.
7A and 7B are configuration diagrams showing a stopper structure according to a seventh embodiment of the present invention.
FIG. 8 is a configuration diagram showing a stopper structure according to an eighth embodiment of the present invention.
FIG. 9 is a front view showing an example of a conventional variable double deck elevator.
FIG. 10 is a front view showing an example of a conventional upper and lower cab.
FIG. 11 is a front view showing another example of a conventional upper and lower cab.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 ... Car frame 1a ... Support frame 1b, 1c ... Support plate
1d, 1e ... insertion hole 2 ... upper cab 3 ... lower cab
14, 14a, 14b ... Link mechanism
15, 16 ... Link arm
42, 43 ... Stopper structure (regulating means)
42a ... stopper
43a, 43b ... Stopper arm

Claims (2)

A car frame that moves vertically while being guided by the main guide rail, an upper cab and lower cabs are vertically movably engaged with the sub guide rail provided on said car frame, said upper cab or the lower said drive means for vertically moving the one of the cab, and the upper cab by the vertical movement part is interposed is locked to the car frame between the lower cage chamber and the upper cage chamber bottom A variable double deck elevator equipped with a link mechanism that expands and contracts the vertical distance from the car room ,
The regulating means for mechanically restricting the scaled movement of the upper and lower gap between the lower cage chamber and the upper cab provided,
The regulating means is provided with a pair of support plates on the car frame, and rotatably supports two link arms constituting the link mechanism via a shaft provided between the pair of support plates. Insertion holes are formed at two locations on the support plate, and inserted into the two insertion holes on the pair of support plates, respectively, so that they are sandwiched between the two link arms and the upper cab and the lower cage A stopper structure for a variable double deck elevator, which is provided with two stoppers that restrict the movement of the cab . A car frame that moves vertically while being guided by the main guide rail, an upper cab and lower cabs are vertically movably engaged with the sub guide rail provided on said car frame, said upper cab or the lower said drive means for vertically moving the one of the cab, and the upper cab by the vertical movement part is interposed is locked to the car frame between the lower cage chamber and the upper cage chamber bottom A variable double deck elevator equipped with a link mechanism that expands and contracts the vertical distance from the car room ,
The regulating means for mechanically restricting the scaled movement of the upper and lower gap between the lower cage chamber and the upper cab provided,
The restricting means is provided with a support frame at a substantially central portion of the car frame, and pivotally provided with base end portions of two stopper arms at positions separated from each other of the support frame. A stopper structure for a variable double deck elevator , wherein the connecting portions are connected to each other to provide a connecting portion, and the connecting portion is connected to the upper cab or the lower cab .

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