JP2004182362A - Elevator - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a safety elevator manufacturable with reduced costs by combination of a support column having a spiral projecting bar on an inner face, a rotary body, an auxiliary support column, a connection member, and a mounting member instead of a wire rope to solve problems of a conventional elevator wherein a car drops if the wire rope is cut due to an accident because the wire rope is used as an elevating driving member and safety measures must be carried out by spending very large costs on the assumption that great injury including an accident resulting in injury or death occurs. <P>SOLUTION: This elevator is constituted in such a way that both ends are fixed to predetermined positions of a building, it has spiral projecting bars 10 on the inner face, a plurality of support columns 1 erected in parallel and vertically, a cutout part 11 provided in the axial direction opposing to the plurality of support columns 1, and spiral screw channels 12 meshing with the spiral projecting bars 10 in the plurality of support columns 1, respectively, are provided at the outer periphery, and it is provided with a plurality of rotary bodies 13 elevating and lowering in the same direction while rotating in the support columns 1. <P>COPYRIGHT: (C)2004,JPO&NCIPI

Description

[0001]
TECHNICAL FIELD OF THE INVENTION
The present invention relates to an elevator.
[0002]
[Prior art]
In a conventional elevator, one end of a wire rope is attached to a rotating drum connected to a motor, the center of the wire rope is locked to a pulley attached to an upper part of a building, and the other end is attached to an upper end of an elevator cage. In general, the elevator cage is moved up and down by rotating the motor forward and backward to wind up and rewind the wire rope. In this case, a high voltage requiring high equipment cost was required.
[0003]
There is an elevator disclosed in Patent Document 1 as an elevator installed at low voltage and low cost. This elevator uses a female screw part fixed to the passenger car and screwed to the screw shaft while supporting the screw shaft rotatably along the elevator car's elevating path, and inside the passenger car and on the passenger car elevator floor. And elevator drive mechanisms each constituting a rotary handle for rotating the screw shaft (see Patent Document 1).
[0004]
[Patent Document 1] Japanese Patent Application Laid-Open No. 9-100080
[0005]
[Problems to be solved by the invention]
In the conventional elevator, if the wire rope is cut, it may lead to a serious accident. In addition, even if the elevator is a low-rise elevator for the second or third floor, several million yen is required for the equipment cost. In the above elevator, both ends of a screw shaft are rotatably fixed to a building, and even a second-floor elevator requires a screw shaft of about 6 m. It was very difficult to transport the elevator to the third floor and elevators for the third floor and above were hardly realizable. To solve the difficulty of transporting such screw shafts, it is conceivable to connect a plurality of screw shafts in series.However, connecting and rotating a plurality of screw shafts in series is difficult due to strength. It is. In addition, when a screw shaft having a length of 6 m is rotated, the central portion of the screw shaft is shaken due to the rotation, which causes various adverse effects during the operation of the elevator, such as the screw thread being worn in a short period of time. Further, in this elevator, a rotary screw shaft and a drive shaft were disposed on one side of the car, and the load of the car was not vertically applied.
[0006]
Furthermore, "Elevator" (Japanese Patent Application No. 2001-359380), filed on November 26, 2001, by Nissha Corporation, is an elevator that can be installed at low cost without using a wire rope. The content is that a rotating body screwed with a thread groove of one threaded column is raised and lowered through a gear train by a motor mounted below a lifting basket. The "elevator" of the present application is an "elevator" which is a further improvement of this application.
[0007]
The elevator according to the present invention does not use a wire rope, eliminates the accident of cutting the wire rope, and is screwed with the two pillars having the spiral ridge so that the equipment can be installed at low cost. By rotating the rotating body with a thread groove to raise and lower, and connecting a plurality of columns in series to form a single column, or by fixing an intermediate portion of a long column to a building with a mounting member It aims to provide a low-cost elevator that operates safely.
[0008]
[Means for Solving the Problems]
The elevator of the present invention has both ends fixed to the building, has a spiral ridge on the inner surface, between a plurality of columns arranged vertically, and a notch provided in the axial direction facing the plurality of columns, A plurality of rotators are provided on the outer periphery of the helical thread grooves respectively meshing with the helical ridges in the plurality of columns, and a plurality of rotating bodies that move up and down in the same direction while rotating within the columns.
[0009]
The plurality of struts, having a spiral ridge on the inner surface, a plurality of strut members having a notch in the axial direction, and the plurality of strut members are stacked in series, and connected and connected between adjacent strut members. A connecting member to be attached, or a central part of the plurality of pillars is attached to a building by a mounting member, and an auxiliary pillar arranged in parallel with the plurality of pillars, and disposed between the plurality of pillars and the auxiliary pillar, and the plurality of pillars are provided. And a rotating shaft that is provided with a basket that moves up and down along with the auxiliary strut, is connected to the plurality of rotating bodies by respective gear trains, and simultaneously moves all rotating bodies up and down in the same direction while rotating the plurality of rotating bodies. And a motor that rotates the rotation shaft, and a rotation transmission member that transmits the rotation of the motor to the rotation shaft, wherein the rotation shaft and the motor are attached to the basket.
[0010]
The plurality of pillars are formed of a cylindrical body, and notches provided in the axial direction at positions facing the plurality of pillars formed of the cylindrical body, and the notches of the pillars are respectively formed in the plurality of pillars formed of the cylindrical body. A plurality of fixing members having axial notches at opposing positions, formed to an arbitrary length, inserted in series, and at least upper and lower ends respectively fixed to both ends of a plurality of pillars formed of a cylindrical body. When provided on the inner surface of the fixing member, cut by a notch of the fixing member, and when a plurality of fixing members are inserted in series in a pillar to be a cylindrical body, the whole of the spiral projection is intermittently continuous at the same interval. And the spiral ridges in the plurality of columns can be formed intermittently on the top surfaces of a plurality of rods attached to each other in the plurality of columns and spaced apart in the longitudinal direction.
[0011]
BEST MODE FOR CARRYING OUT THE INVENTION
Hereinafter, embodiments of the present invention will be described with reference to the drawings. As shown in the perspective view of the main part of FIG. 1, the elevator of the present invention has two columns 1 (first column 1a and second column 1b) and one auxiliary column 2 near the outer periphery in the hoistway. The basket 3 erected in parallel and on which a person rides is arranged inside two columns 1 and one auxiliary column 2. A drive motor 5 connected to a power source 4 for raising and lowering the basket 3 is mounted below the basket 3 (or above or on the side). A rotating shaft 7 having a pulley 6 at the center is rotatably mounted below the basket 3 by a mounting member 8. The motor 5 and the pulley 6 are connected by a drive belt 9 (which may be a gear) as a rotation transmission member.
[0012]
As shown in the enlarged cutaway perspective view of the main part in FIG. 2, a spiral ridge 10 is provided on the inner surface of each of the two columns 1, and the opposed outer peripheral surfaces of the two columns 1 are provided in the axial direction. A notch 11 is provided, and the cross section is C-shaped. A rotating body 13 (first rotating body 13a and second rotating body 13b) having a helical thread groove 12 meshing with the helical ridge 10 in the two columns 1 is rotated in the two columns 1. It is provided freely, and moves up and down while rotating according to the rotation of the rotating shaft 7 rotated by the forward and reverse rotation of the motor 5. A shaft 14 extends in the axial direction of the column 1, and has a bevel gear train 15 (15 a, 15 b, see FIG. 2) that transmits the rotation of the rotating shaft 7 to the shaft 14. At the tip of the shaft 14, the base of the mounting member 16 is rotatably provided, and the tip of the mounting member 16 is mounted on the side surface of the basket 3 (not shown, but also at the lower portion of the rotating body 13). It is desirable to attach the mounting member 16 to a plurality of positions of the basket 3 such as by extending the mounting member 16 rotatably at the distal ends of both shafts 14, 14).
[0013]
As shown in the main part enlarged vertical cross-sectional view of FIG. 3, the first bevel gear train 15a that rotates the first rotating body 13a in the first support 1a among the two supports 1 includes the first bevel gear 17a and the first bevel gear 17a. It comprises two bevel gears 17b and a third bevel gear 17c. The first bevel gear 17a is provided fixed to the base of the shaft 14, and is also fixed to the first rotating body 13a. The second bevel gear 17b is rotatably provided on the shaft 14 at a position facing the first bevel gear 17a. The third bevel gear 17c is fixedly provided at one end of the rotating shaft 7, meshes with both the first bevel gear 17a and the second bevel gear 17b, and transmits the rotation of the rotating shaft 7 to the first rotating body 13a. The first rotating body 13a is rotated.
[0014]
In addition, the second bevel gear train 15b that rotates the second rotating body 13b in the second support 1b among the two bevel gears includes a fourth bevel gear 18a, a fifth bevel gear 18b, and a sixth bevel gear 18c. The fourth bevel gear 18a is rotatably provided at the base of the shaft 14. The fifth bevel gear 18b provided facing the fourth bevel gear 18a is fixed to the shaft 14 at a position facing the fourth bevel gear 18a. The sixth bevel gear 18c is fixedly provided at the other end of the rotating shaft 7, meshes with both the fourth bevel gear 18a and the fifth bevel gear 18b, and rotates the rotating shaft 7 to the second rotating body 13b. Then, the second rotating body 13b is rotated.
[0015]
A pulley 19 is also provided on the first support 1a side of the rotary shaft 7. A pulley 21 is provided outside a shaft 20 rotatably attached to the side wall of the basket 3, and the pulley 21 and the pulley 19 of the rotating shaft 7 are connected by a transmission belt 22 as a rotation transmission member. A handle 23 which is detachable from the inside of the basket 3 is provided at an end of the shaft 20 of the pulley 21. When the motor 5 cannot be driven, for example, during a power failure, the rotating shaft 7 is rotated by rotating the handle 23. When the rotating shaft 7 is rotated, the rotating body 13 (first and second rotating bodies 13a and 13b) rotates and moves up and down. The basket 3 is moved up and down by the up and down movement of the rotating body 13 to stop at the adjacent floor and escape. Although not shown, it is also possible to raise and lower the basket by operating a motor connected to a dry battery provided at an arbitrary position of the basket 3 by turning on and off a switch provided in the basket 3.
[0016]
As shown in a cross-sectional view with an enlarged view of a main part of FIG. 4, the cage is fixed at a predetermined position of a building and is erected in parallel with the two columns 1 (1a, 1b). In the drawing, the auxiliary column 2 to be locked by the locking member 25 provided on the back side of the basket 3 has an H-shaped cross section (not limited to the H-shape, such as an L-shape or a C-shape). Other shapes may be used). The locking member 25 is provided with two rotating bodies 26 sandwiching the central portion of the H-shaped auxiliary support 2 from both sides, and a rotating body 27 that is in contact with one side of the H-shaped piece on the side surface on the basket 3 side. ing.
[0017]
In the elevator having the above-described structure, the pulley 6 of the rotating shaft 7 rotatably mounted by the mounting member 8 under the cage 3 similarly to the motor 5 mounted below the cage 3 includes a rotation transmission member 9 (drive belt or gear). Are connected by The rotation shaft 7 rotates forward and backward according to the forward and reverse rotation of the motor 5. When the rotating shaft 7 rotates, the first gear train 15a and the second gear train 15b provided at both ends of the rotating shaft 7 rotate. That is, the third bevel gear 17c and the sixth bevel gear 18c at both ends of the rotating shaft 7 rotate, and the rotation of the third bevel gear 17c causes the first bevel gear 17a and the second bevel gear 17b to rotate. The rotation of 18c rotates the fourth bevel gear 18a and the fifth bevel gear 18b.
[0018]
Since the first bevel gear 17a and the fifth bevel gear 18b are fixed and the second bevel gear 17b and the fourth bevel gear 18a are rotatable, the first gear train 15a and the When the second gear train 15b rotates, the first rotating body 13a and the second rotating body 13b simultaneously rotate in the same direction. Since the spiral screw groove 12 on the outer periphery of the first rotating body 13a and the second rotating body 13b is meshed with the spiral ridge 10 on the inner side of the column 1 (the first column 1a and the second column 1b), the first The rotating body 13a and the second rotating body 13b move up and down while rotating. A notch 11 in the axial direction is provided on the opposing surface of the outer periphery of the first support 1a and the second support 1b, and the vicinity of both ends of the rotating shaft 7 is inserted from the notch 11 into the first support 1a and the second support 1b. A third bevel gear 17c and a sixth bevel gear 18c are provided at both ends of the inserted rotary shaft 7. Therefore, the rotary shaft 7 can also smoothly move up and down according to the up and down movement of the first rotating body 13a and the second rotating body 13b.
[0019]
A mounting member 16 whose base is rotatably mounted on the tip of a shaft 14 extending in the axial direction of the first rotating body 13a and the second rotating body 13b (this mounting member 16 also projects from the notch 11 in the direction of the basket 3). ) And the rotating shaft 7 are attached to the basket 3, so that the basket 3 moves up and down according to the vertical movement of the first rotating body 13a and the second rotating body 13b.
[0020]
The elevator having the above configuration is safe because there is no wire rope cutting accident because the cage is not hung by the wire rope, and a safety device supposing the wire rope cutting accident is unnecessary, so that the elevator can be provided at low cost. Further, since the angle of the spiral ridge 10 is formed at a gentle slope, even if a power failure occurs, the first and second rotating bodies 13a and 13b can be stopped at the position at the time of the power failure, so that a fall accident may occur. Cannot be connected. Since the elevator mechanism is made of only a combination of simple mechanical structures, it is safe with little trouble and low maintenance costs.
[0021]
Since the first and second rotating bodies 13a and 13b move up and down while rotating in the first and second pillars 1 formed in the cylindrical shape having the above-described configuration, noise during elevator operation can be suppressed. Further, the gear oil poured into the first and second rotating bodies 13a and 13b does not scatter to the outside of the first and second columns 1, so that it is clean.
[0022]
In the event of a power failure, the handle 23 in the basket 3 is operated to rotate the rotating shaft 7 to rotate the first and second rotating bodies 13a and 13b, thereby making the basket 3 ascend and descend (it is easier to lower). it can. Arranged between the first and second columns 1 (1a, 1b) on both sides of the basket 3, these columns 1 are always locked via a rotating shaft 7 mounted under the basket 3. Therefore, the basket 3 can be moved up and down in a stable state and is safe. Furthermore, in addition to the first and second columns 1 (1a, 1b), the auxiliary column 2 as a third column is provided behind the basket 3, so that the basket 3 is always locked at three points, left, right and rear. You can go up and down very safely. In particular, when the cross section of the auxiliary column 2 is H-shaped, the three rotating bodies 26 and 27 of the locking member 25 attached to the basket 3 sandwich the central portion of the H-type auxiliary column 2 and have a side surface on the wall side. Therefore, it is ideal as a measure for preventing the basket 3 from shaking.
[0023]
As shown in an enlarged exploded perspective view of a main part of FIG. 5 and an enlarged vertical sectional view of a main part of FIG. 7, the center of the first and second columns 1 (1a, 1b) is attached to a desired position of the building by the mounting member 61. It can also be attached and fixed. The mounting member 61 includes a column fixing portion 62 and a building mounting portion 63. The strut fixing portion 62 is formed in a pair of symmetrical shapes including a C-shaped tip portion 62a and a handle portion 62b. The strut fixing portion 62 sandwiches an arbitrary position of the central portion of the first and second struts 1 and has a screw 62c and the like. Fix with. It is desirable that the tip portions 62a attached to the outer circumferences of the first and second columns 1 be fixed with screws (not shown) or the like.
[0024]
The building attachment portion 63 includes a cylindrical portion 63a at the front end and a mounting portion 63b at the rear end, and the pair of handle portions 62b can be inserted into the cylindrical portion 63a so as to be able to move forward and backward. A large number of grooves intersecting the axial direction are formed on the opposing surfaces of the pair of handle portions 62b, a through hole 63c is provided in the cylindrical portion 63a, and one of the many grooves is communicated with the through hole 63c. The length of the mounting member 61 which can be expanded and contracted by screwing a screw (not shown) or inserting a rod into the communicating through hole 63c and the groove can be fixed. The method of fixing the length of the expanding and contracting mounting member 61 may be other means.
[0025]
The first and second columns 1 having the central portion fixed to the building by the mounting member 61 having the above configuration can not only be resistant to external pressure but also suppress vibration during operation of the elevator. It should be noted that the shape of the mounting member 61 is not limited to the illustrated one, but may be another shape. The shape varies depending on the cross-sectional shape of the first and second columns 1, and the method of expanding and contracting the building mounting portion 63 can also be changed. One example will be described later.
[0026]
As shown in the main part enlarged exploded perspective view of FIG. 6 and the main part enlarged exploded perspective view of FIG. 7, a plurality of support members 71 having a spiral ridge 10 on the inner surface and a notch 11 in the axial direction are provided. A connecting member 72 for connecting the support members 71 in series is provided. The connecting member 72 is interposed and fixed between the vertically adjacent strut members 71 to form the first and second struts 1.
[0027]
Further details will be described. At the end of the support member 71, the helical protrusion 10 provided on the inner surface protrudes in the axial direction to form a protrusion 73 (preferably a conical trapezoid in vertical section), and the outer periphery 74 is raised by one step. Form lower. Conical holes 75 are provided at desired positions of the outer peripheral portion 74 (three holes are preferably provided at 120-degree intervals). The connecting member 72 has a notch 11 a in the axial direction, has a C-shaped cross section, and has an inner diameter larger than the inner shape of the spiral ridge 10 of the support member 71. When the support members 71 are vertically connected in series via the connecting member 72, the spiral protrusions 10 on the inner surface of the adjacent support members 71 are formed to be one continuous spiral protrusion 10. It is. On both upper and lower end surfaces of the connecting member 72, there are provided conical projections 76 which are tightly fitted into conical holes 75 of the outer peripheral portion 74 of the support member 71. When the conical projection 76 is tightly fitted into the conical hole 75, the notch 11 of the support member 71 and the notch 11a of the connecting member 72 communicate in a straight line. On the outer periphery of the connecting member 72, an edge 77 is provided upright in the vertical axis direction (a vertical section of the inner surface of the edge 77 is desirably a conical trapezoid).
[0028]
The lower cone-shaped projection 76 of the connecting member 72 is overlapped with the cone-shaped hole 75 of the outer peripheral portion 74 of the pillar member 71, and another pillar member 71 is placed on the cone-shaped projection 76 above the overlapped coupling member 72. When the conical projections 76 at the lower ends of the two are overlapped, the two support members 71 are connected in series. It is desirable that the connecting member 72 be fixed to both ends of the upper and lower support members 71 using fixing members such as screws (not shown). The spiral ridges 10 of the plurality of support members 71 connected via the connecting member 72 in this way are continuous as one spiral ridge 10.
[0029]
When the outer peripheral portions 74 at both ends of the support member 71 are flat without being lowered, when the plurality of support members 71 are connected in series via the connection member 72, the connecting member 72 is provided between the support members 71. A gap is generated by the thickness of At this time, if the pitches of the spiral ridges 10 on the inner surfaces of the upper and lower support members 71 are adjusted to be intermittently continuous as one spiral ridge 10, the operation of the rotating body 13 is not affected.
[0030]
For example, when installing an elevator in a two-story building, when connecting the 2 m support members 71 in series by three and two connection members 72 to form the first and second support members 1, Since the length of the support member 71 is only 2 m, the support member 71 mass-produced in the factory can be easily transported to the elevator installation site. In addition, as described above, if the support members 71 are connected one after another by the connection members 72, not only the two-story vertical structure but also the three-story and four-story structures can be used to provide a two-meter support member and a connecting member. 72 allows the first and second columns 1 to be assembled and an elevator installed. Further, the mounting member 63 shown in the above embodiment can attach and fix an arbitrary central portion (or a plurality of portions) of the first and second columns 1 to a building, and the strength of the first and second columns 1 can be improved. Can be secured sufficiently.
[0031]
One embodiment (not shown) will be described. An axial ridge (preferably three at 120 ° intervals) is provided on the outer periphery of the first and second columns 1 shown in FIG. The conical hole 75 shown in FIG. 6 is provided at the position of the bulging ridge on the end face of the column 1. A connecting member 72 shown in FIG. 6 having a conical projection 76 on the front and back, which is tightly fitted in the conical hole 75, is provided. The outer periphery of the connecting member 72 has the same shape as the cross section of the first and second columns 1, and is provided with a conical hole 75 in a bulging portion. On the outer periphery of the connecting member 72, a stretchable building attachment portion such as the attachment portion 63 of the attachment member 61 shown in FIG. 5 is provided.
[0032]
It is preferable that the connecting member also serves as the mounting member having the above-described configuration. In addition, since the strut provided with the ridge in the axial direction of the outer periphery has an increased strength, the thickness of the portion other than the portion provided with the ridge can be reduced to reduce the weight for the purpose of weight reduction.
[0033]
As shown in an enlarged cross-sectional view of a main part of FIG. 8 and an enlarged perspective view of a main part of FIG. 9, the first and second pillars 1 (1a, 1b) are replaced with a spiral ridge 10 having no spiral ridge 10 on the inner wall surface. A column 30 (a first cylinder and a second cylinder) composed of a plurality of cylinders is provided. A notch 31 in the axial direction is provided on the opposing surfaces of the two columns 30 so as to have a C-shaped cross section. Axial grooves 32 are provided on the inner wall surfaces of the two columns 30 at arbitrary intervals.
[0034]
A plurality of rods 34 each having a shape obtained by dividing the first or second support 1a, 1b into a plurality of pieces in the vertical direction are provided in order to form the spiral projections 33 on the inner wall surfaces of the two supports 30 in a spaced manner. Provide. That is, the spiral ridges 33 are intermittently provided on the inner wall surface (top surface) of the rod body 34 when the rod body 34 is attached to the inner wall surface of the two columns 1 (1a, 1b). The plurality of rods 34 are fitted into the axial grooves 32 of the two columns 1 (1a, 1b) and fixed by screwing or welding. The helical ridges 33 of the column 30 formed in this manner are intermittently separated, but when the helical thread grooves 12 of the first and second rotating bodies 13a and 13b are screwed together, they become smooth. The pitch is adjusted so that it can be rotated.
[0035]
It is very difficult and expensive to form the spiral ridges 10 having the same pitch on the entire inner wall surface of the long column 1 having a C-shaped cross section. However, the cylindrical column 30 having the above configuration and having the intermittently spaced spiral projections 33 on the inner wall surface forms a part of the spiral projection 33 on the top surface of the rod 34, and the two columns are formed. It is only attached to the inner wall surface of the support 30, and the production cost of the support column 30 and the production cost of the elevator can be significantly reduced.
[0036]
As shown in an enlarged exploded perspective view of a main part of FIG. 10 and an enlarged cross-sectional view of a main part of FIG. 11, instead of the rod body 34 having the spiral ridge 33 provided on the top surface, the column 1 is orthogonal to the longitudinal direction. A plurality of short pillars 36 having a spiral ridge 35 therein are provided by cutting into a plurality of pieces having a predetermined length in the direction. The plurality of short columns 36 are inserted into two cylindrical columns 30 in a layered manner, and at least the upper and lower ends of the short columns 36 inserted in the layered configuration are screwed to the upper and lower ends of the two cylindrical columns 30. And fix it with welding. The spiral ridge 35 of the short column 36 inserted into the column 30 is cut at a position facing the notch 31 of the column 30. The cylindrical columns 30 having the short columns 36 thus inserted into the columns 30 have the same pitch throughout.
[0037]
A groove 37 as a positioning member is provided in the inner wall surface of the column 30 in the axial direction. If a ridge 38 as a positioning member to be fitted into the groove 37 is provided on the outer periphery of the short column 36, the positioning is performed only by aligning the position of the groove 37 with the ridge 38 and inserting the short column 36 into the column 30. Further, as shown in the main part enlarged cross-sectional view of FIG. 12, the positioning members 37 and 38 are provided with a longitudinal projection 39 inside the vicinity of the longitudinal notch 31 of the column 30 by another method. There may be.
[0038]
The spiral ridge 35 of the plurality of short columns 36 having the above-described configuration can be manufactured at a very low cost regardless of whether it is a cutting process or a casting process, and the plurality of short columns 36 are inserted into the columns 30 in a stacked manner. The strut in which the short struts 36 at the upper and lower ends are fixed to the outer strut 30 can be manufactured at extremely low cost.
[0039]
As shown in the enlarged vertical sectional view of the main part in FIG. 13, third and fourth columns 41 having spiral ridges 40 on the outer periphery are provided instead of columns 1. A third and fourth rotator having a helical thread groove on the inner peripheral surface and meshing with the helical ridge of the third and fourth pillars 41 and a gear 43 on the outer periphery is provided. Fifth and sixth rotators 47 having a gear 45 meshing with a gear 43 on the outer periphery of the third and fourth rotators 44 and having a pulley 46 at an end are provided.
[0040]
The third and fourth rotating bodies 44 and the fifth and sixth rotating bodies 47 are rotatably mounted in a casing 48, respectively. As the third and fourth rotating bodies 44 move up and down along the third and fourth columns 41 while rotating, the casing 48 also moves up and down. A side portion of the casing 48 is opened in a vertical direction, and a bar 49 extends in the direction of the basket 3 above and below the opening, and a tip is attached to the basket 3. The pulleys 46 provided on the fifth and sixth rotating bodies 47 are connected to a motor 5 attached below (or above) the basket 3 by a rotary transmission member (V-belt or the like) 50. The rotation transmission member 50 extends from the opening of the casing 48 toward the motor 5. The third to sixth rotating bodies 44 and 47 and the casing 48 are accommodated in a cylindrical body 51 having an open side so that the gear oil does not scatter, and the rod 49 and the rotation transmission member 50 of the casing 48 pass through the opening. It extends in the direction of the basket 3 or the motor 5.
[0041]
In the elevator having the third and fourth columns 41 and the third and fourth rotating bodies 44 having the above-described configuration, the motor 5 rotates forward and backward in accordance with the turning on and off of the power supply 4 to rotate the pulley 46 connected by the rotation transmission member 50. The fifth and sixth rotating bodies 47 formed integrally with the pulley 46 are rotated. As the fifth and sixth rotating bodies 47 rotate, the third and fourth rotating bodies 44 simultaneously rotate in the same direction by the meshing of the gears 43 and 45 on the outer periphery of the third to sixth rotating bodies 44 and 47. Move up and down. Since the tips of the extending rods 49 at the upper and lower ends of the casing 48 are attached to the basket 3, the basket 3 moves up and down according to the vertical movement of the third and fourth rotating bodies 44.
[0042]
Since the third and fourth columns 41 are formed by forming the spiral ridges 40 on the outer periphery of the rod, the manufacturing cost is low, and since the third and fourth rotors 44 are short rotors, the inner spiral is formed. The ridges 40 can be easily formed and made cheaply. Therefore, the manufacturing cost of the elevator having the above configuration is low, and an inexpensive elevator can be provided.
[0043]
Although not shown, a spiral ridge as shown in FIGS. You can also. Further, the spiral ridges may be formed by various methods such as cutting each top line on the outer periphery of the polygonal third and fourth pillars and providing the spiral ridges intermittently.
[0044]
【The invention's effect】
Since the elevator according to the present invention does not suspend the basket with a wire rope in order to raise and lower the basket, an accident in which the wire rope is cut and the basket falls cannot occur, and a safety device for preventing a basket falling accident is provided. Useless. Therefore, a safe and low-cost elevator can be provided.
[0045]
Two columns having a spiral ridge on the inner periphery are erected in parallel, and a rotating body having a helical screw groove screwed with the helical ridge is rotated by a motor attached to the outside of the cage. Since the rotating body is moved up and down through a rotating shaft attached to the outside, the basket moving up and down is stable without vibration. In addition, auxiliary pillars are erected in parallel with the two pillars, and the cage arranged between the three pillars is always locked to the pillar at three points on both sides and the back side of the basket, Can be moved up and down in a stable state.
[0046]
Since the mounting member was provided and an arbitrary central portion of the column was fixed to the building, vibration of the column during operation of the elevator was reduced. A plurality of strut members and a connecting member are provided, and the strut members are connected in series by the connecting member, so that the strut members are shortened, so that the short strut members mass-produced in the factory can be easily transported, and the cost of the elevator can be reduced. Could be reduced.
[0047]
Since a plurality of fixing members having a spiral ridge on the inner surface are inserted in a layered manner into the cylindrical column and the fixing members at both ends are fixed to the cylindrical column, the spiral ridge provided in the long column is provided. Can be easily manufactured at low cost. Since the rod body having the spiral ridge intermittently provided on the top surface is separately mounted in the cylindrical support, the spiral ridge in the long support can be easily provided at low cost.
[Brief description of the drawings]
FIG. 1 is a perspective view of a main part of an elevator according to the present invention.
FIG. 2 is an enlarged cutaway perspective view of a main part of the elevator according to the present invention.
FIG. 3 is an enlarged longitudinal sectional view of a main part of the elevator according to the present invention.
FIG. 4 is an enlarged cross-sectional view of a main part of the elevator according to the present invention.
FIG. 5 is an enlarged exploded perspective view of a main part of the elevator according to the present invention.
FIG. 6 is an enlarged exploded perspective view of a main part of the elevator according to the present invention.
FIG. 7 is an enlarged longitudinal sectional view of a main part of the elevator according to the present invention.
FIG. 8 is an enlarged cross-sectional view of a main part of the elevator according to the present invention.
FIG. 9 is an enlarged perspective view of a main part of the elevator according to the present invention.
FIG. 10 is an enlarged exploded perspective view of a main part of the elevator according to the present invention.
FIG. 11 is an enlarged cross-sectional view of a main part of the elevator according to the present invention.
FIG. 12 is an enlarged cross-sectional view of a main part of the elevator according to the present invention.
FIG. 13 is an enlarged longitudinal sectional view of a main part of the elevator according to the present invention.
[Explanation of symbols]
1 prop
2 supporting props
3 baskets
5 Motor
6 Pulley
7 Rotation axis
8 Mounting members
9 Drive belt as rotation transmission member
10 Spiral ridge of support
11 Axial notch
12 Spiral thread groove of rotating body
13 Rotating body
15 Gear train
16 Mounting member
30 pillars
31 Notch in pillar
32 Axial groove on the inner wall of the column
33 Spiral protrusion on top of rod
34 rod
35 Spiral ridge of short support
36 Short Prop
61 Mounting member
71 Support member
72 Connecting member

Claims (7)

Fixing both ends in a predetermined position of the building, having a spiral ridge on the inner surface, and a plurality of columns vertically aligned,
Notches provided in opposite axial directions of the plurality of columns,
A plurality of rotators that are provided on the outer periphery with helical thread grooves that respectively mesh with helical ridges in the plurality of columns, and that move up and down in the same direction while rotating within the columns,
An elevator having: The plurality of struts,
A plurality of support members having a spiral ridge on the inner surface and having a notch in the axial direction,
A connecting member for stacking the plurality of strut members in series and connecting and interposing between the adjacent strut members;
The elevator according to claim 1, comprising: The elevator according to claim 1 or 2, further comprising an attachment member for attaching a central portion of the plurality of columns to a building. An auxiliary strut juxtaposed with the plurality of struts,
A basket arranged between the plurality of columns and the auxiliary columns, and a basket that moves up and down along the plurality of columns and the auxiliary columns,
The elevator according to any one of claims 1 to 3, further comprising: A rotating shaft connected to the plurality of rotating bodies and respective gear trains, and simultaneously moving all rotating bodies up and down in the same direction while rotating the plurality of rotating bodies;
A motor for rotating the rotating shaft;
A rotation transmission member for transmitting rotation of the motor to a rotation shaft;
Has,
The elevator according to any one of claims 1 to 4, wherein a rotating shaft and a motor are attached to the basket. The plurality of columns are formed in a cylindrical body,
A notch provided in the axial direction at a position facing the plurality of columns formed by the cylindrical body,
Within the plurality of pillars formed of the cylindrical body, there is an axial notch at a position opposed to the notch of the pillar, formed in an arbitrary length, inserted in series, and at least the upper and lower ends are cylindrical bodies. A plurality of fixing members respectively fixed to both ends of a plurality of columns consisting of,
When provided on the inner surface of the fixing member, cut by a notch of the fixing member, and when a plurality of fixing members are inserted in series in a column formed of a cylindrical body, the entire helical ridge is intermittently continuous at the same interval. When,
The elevator according to any one of claims 1 to 5, further comprising: The helical ridges in the plurality of pillars are formed intermittently on the top surfaces of a plurality of rods attached to the plurality of pillars in the longitudinal direction so as to be spaced apart from each other. The elevator according to one of the above.

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