JP2011042422A - Car of pushing-up type elevator - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a car of a pushing-up type elevator reducing manufacturing cost, and miniaturizing a suspension sheave installing structure, by omitting a suspension sheave installing beam. <P>SOLUTION: A first emergency stopping mechanism 20 and a first suspension sheave 30 are installed in one end part of a lower beam 6. The first emergency stopping mechanism 20 and the first suspension sheave 30 are mutually adjacently arranged between mutual one end parts of a first lower beam member 9 and a second lower beam member 10. The first suspension sheave 30 is installed on respective under surfaces of lower side flange parts 9b and 10b of the first lower beam member 9 and the second lower beam member 10 in the one end part of the lower beam 6 via an installation shaft 32, a first U bolt 33A, a second U bolt 33B and a plurality of nuts 34. A main rope 40 is wound on the outer periphery of the first suspension sheave 30. <P>COPYRIGHT: (C)2011,JPO&INPIT

Description

  The present invention relates to a car of a lift type elevator in which a pair of suspension wheels is provided on the lower surface of a car floor and is lifted and lowered in a hoistway by a lift method.

  For example, in a conventional lift elevator car as shown in FIG. 1 of Patent Document 1, a suspension car mounting beam (guide sheave) provided on the lower side of a lower beam (lower frame, emergency stop mounting beam) of the car frame. A pair of suspension wheels (guide sheaves) are attached to the bottom of the car via a support frame. The suspension car mounting beam is arranged so as to cross obliquely in the horizontal direction with respect to the lower beam so as to intersect with a perpendicular passing through the center of gravity of the car.

  Further, for example, in a conventional lift elevator car as shown in FIG. 3 of Patent Document 1, a suspension car mounting beam arranged parallel to the lower beam so as to be adjacent to the lower beam of the car frame. A pair of suspension wheels are attached to the bottom of the car.

JP-A-55-165879

  1 and 3 of Patent Document 1, in any conventional lift type elevator car, the suspension car mounting beam is used separately from the lower beam, so the number of members is increased. Manufacturing costs were rising. Along with this, the mounting structure of the suspension vehicle has been increased in size.

  The present invention has been made in order to solve the above-described problems, and the suspension vehicle mounting beam can be omitted, the manufacturing cost can be reduced, and the suspension vehicle mounting structure can be downsized. The aim is to obtain a lift elevator car that can be used.

  The elevator elevator car according to the present invention includes a car floor, a car room provided on the upper surface of the car floor, a pair of guides provided on the lower surface of the car floor and provided on a hoistway. A lower beam having a first lower beam member and a second lower beam member spaced from each other so as to sandwich the rail; and one end portion and the other end portion of the lower beam, and the first beam A pair of emergency stop mechanisms disposed between a lower beam member and the second lower beam member, and attached to each of one end and the other end of the lower beam, and to each of the pair of emergency stop mechanisms It is provided between the first lower beam member and the second lower beam member so as to be adjacent to each other, and includes a pair of suspension wheels around which a main rope is wound.

  According to the lift elevator car according to the present invention, the pair of suspension vehicles is disposed between the first lower beam member and the second lower beam member so that each of the pair of suspension vehicles is adjacent to each of the pair of emergency stop mechanisms. Since it is attached, the suspension vehicle attachment beam can be omitted, the manufacturing cost can be reduced, and the suspension vehicle attachment structure can be downsized.

It is a top view which shows the cage | basket | car of the lift type elevator by Embodiment 1 of this invention. It is a side view which expands and shows the connection location of the lower beam and 1st vertical column of FIG. It is a perspective view which expands and shows the connection location of the lower beam and 1st vertical column of FIG. It is a disassembled perspective view which expands and shows the attachment axis | shaft and suspension vehicle of FIG. It is a side view which expands and shows a part of the lift type elevator by Embodiment 2 of this invention. It is a perspective view which expands and shows a part of the lift type elevator by Embodiment 2 of this invention. It is a perspective view which expands and shows the attachment axis | shaft of FIG. It is a perspective view which expands and shows the attachment axis | shaft of FIG.

Hereinafter, embodiments for carrying out the present invention will be described with reference to the drawings.
Embodiment 1 FIG.
1 is a plan view showing a car of a lift type elevator according to Embodiment 1 of the present invention. FIG. 2 is an enlarged side view showing a connecting portion between the lower beam 6 and the first vertical column 7 in FIG. FIG. 3 is an enlarged perspective view showing a connection portion between the lower beam 6 and the first vertical column 7 in FIG. 1. In FIG. 3, the frame body 21 is omitted.
1 to 3, first and second guide rails (a pair of guide rails) 1 </ b> A and 1 </ b> B are provided upright along a vertical direction in a hoistway of a building. A car body 2 is provided between the first and second guide rails 1A and 1B in the hoistway.

  The car body 2 includes a car frame 3, a car floor 4, and a car room 5 for accommodating passengers. A car doorway 5 a and a car door device 50 that opens and closes the car doorway are provided in the front portion of the car room 5. The car frame 3 has an upper beam (not shown), a lower beam (emergency stop mounting beam) 6, and first and second vertical columns 7 and 8.

  The upper beam is disposed along the line α connecting the first guide rail 1A and the second guide rail 1B to the ceiling of the cab 5. One end of the upper beam and the upper end of the first vertical column 7 are connected to each other. The other end portion of the upper beam and the upper end portion of the second vertical column 8 are connected to each other. The lower beam 6 includes a first lower beam member 9 and a second lower beam member 10 (a pair of lower beam members), and a first connector 11 and a second connector 12.

  The first and second vertical columns 7 and 8 are arranged in parallel to the guide rails 1A and 1B, respectively. The first vertical column 7 is formed of a steel having a U-shaped cross section. Further, the first vertical column 7 has a U-shaped first side surface portion 7a, a U-shaped second side surface portion 7b, and a U-shaped intermediate surface portion 7c. Similarly to the first vertical column 7, the second vertical column 8 is made of a steel having a U-shaped cross section, and has a U-shaped first side surface portion, a U-shaped second side surface portion, and a U-shaped intermediate surface portion. ing.

  The first lower beam member 9 and the second lower beam member 10 are, for example, lip groove steel. In addition, the first lower beam member 9 and the second lower beam member 10 are arranged in parallel with a space between each other so as to sandwich each of the pair of guide rails 1A and 1B. Further, the first lower beam member 9 and the second lower beam member 10 include upper flange portions (upper surface portions) 9a and 10a, lower flange portions (lower surface portions) 9b and 10b, and web portions (side surface portions) 9c, respectively. , 10c.

  The first connector 11 includes a horizontal plane part 11a, a first lower beam connection part 11b, a second lower beam connection part 11c, a first vertical column connection part 11d, and a second vertical column connection part 11e. ing. The lower surface of the horizontal plane portion 11 a is provided along the upper surfaces of the upper flange portions 9 a and 10 a of the first lower beam member 9 and the second lower beam member 10.

  The 1st and 2nd lower beam connection parts 11b and 11c are arrange | positioned along the perpendicular direction so that it may orthogonally cross with respect to the end surface by the side of the 1st guide rail 1A of the horizontal surface part 11a. That is, the first and second lower beam connecting portions 11b and 11c are arranged so as to project to the top and bottom of the horizontal surface portion 11a and the left or right side of the first vertical column 7 in FIG.

  Further, the horizontal projecting dimension of the first vertical column 7 at the first lower column connecting portion 11b from the U-shaped first side surface portion 7a is the second U-shaped second column connecting unit 11c at the second U-shaped second column connecting unit 11c. The dimension is set to be larger than the horizontal projecting dimension from the side surface portion 7b. Furthermore, the lower side of the horizontal surface portion 11a in the first and second lower beam connecting portions 11b and 11c is fixed (fused) to the respective one end surfaces of the first lower beam member 9 and the second lower beam member 10. . Furthermore, the 1st and 2nd lower beam connection parts 11b and 11c are connected to the side end surface of the car floor 4 with the volt | bolt and the nut (not shown), respectively.

  The first and second vertical column connecting portions 11d and 11e are provided so as to protrude upward from the upper surface of the horizontal surface portion 11a. The first and second vertical column connecting portions 11d and 11e are arranged along the vertical direction and are opposed to each other with a space therebetween. Further, the first and second vertical column connecting portions 11d and 11e are respectively a U-shaped first side surface portion 7a and a U-shaped second side surface portion at the lower end portion of the first vertical column 7 by a plurality of bolts and a plurality of nuts. 7b. The configuration of the second connector 12 is the same as the configuration of the first connector 11.

  Therefore, one end portions of the first lower beam member 9 and the second lower beam member 10 (one end portion of the lower beam 6) and the lower end portion of the first vertical column 7 are connected via the first connector 11. Are also linked. Further, the other end portions of the first lower beam member 9 and the second lower beam member 10 (the other end portion of the lower beam 6) and the lower end portion of the second vertical column 8 are connected via the second connector 12. , Both are connected.

  A first emergency stop mechanism 20 and a first suspension wheel 30 are attached to one end of the lower beam 6. A second emergency stop mechanism (not shown) and a second suspension wheel 31 are attached to the other end of the lower beam 6. A main rope 40 is wound around the outer peripheral surfaces of the first suspension wheel 30 and the second suspension wheel 31.

  The first emergency stop mechanism 20 and the first suspension wheel 30 are disposed adjacent to each other (in the left-right direction in FIG. 2) between one end portions of the first lower beam member 9 and the second lower beam member 10. ing. The second emergency stop mechanism and the second suspension wheel 31 are disposed adjacent to each other between the other end portions of the first lower beam member 9 and the second lower beam member 10.

  The first emergency stop mechanism 20 includes a frame body 21, an emergency stop block 22, and a wedge-shaped braking piece 23. The frame body 21 is fixed (fused) to the lower surface of the horizontal plane portion 11 a of the first connector 11 and the lower surface of the lower flange portion 10 b of the second lower beam member 10. A guide shoe 24 slidable along the first guide rail 1 </ b> A is attached to the lower surface of the frame body 21. Similar to the frame body 21, a guide shoe (not shown) is also attached to the upper beam of the car frame 3.

  The emergency stop block 22 and the brake piece 23 are provided inside the frame body 21. The emergency stop block 22 has a braking surface that is inclined with respect to the guide rail 1 </ b> A so as to taper upward from the both side surfaces of the guide rail 1 </ b> A. The brake piece 23 is connected to a speed governor (not shown) via an operating rod and a speed governor rope (not shown).

  Here, the brake piece 23 is slid upward in FIG. 2 along the braking surface of the emergency stop block 22 when the circulating movement of the governor rope is stopped and the operating rod is pulled upward. And when the brake piece 23 clamps the both side surfaces of the guide rail 1A, the first emergency stop mechanism 20 exerts a braking force, and the raising / lowering of the car body 2 is braked. The configuration of the second emergency stop mechanism is the same as the configuration of the first emergency stop mechanism 20. In addition, the second emergency stop mechanism works together with the first emergency stop mechanism 20 to exert a braking force.

  Next, the mounting structure of the first suspension vehicle 30 will be specifically described. One end portion of the attachment shaft 32 is attached to the lower surface of the lower flange portion 9b of the first lower beam member 9 by a first U bolt 33A and a plurality of nuts 34. The other end portion of the attachment shaft 32 is attached to the lower surface of the lower flange portion 10b of the second lower beam member 10 by a second U bolt 33B and a plurality of nuts 34.

  As shown in FIG. 4, flat surfaces 32 a and 32 b are provided at both ends of the mounting shaft 32, respectively. The flat surface 32 a is in contact with the lower surface of the lower flange portion 9 b of the first lower beam member 9. The flat surface 32b is in contact with the lower surface of the lower flange portion 10b of the second lower beam member 10. The inner peripheral surface of the U-shaped intermediate portion of the first U bolt 33 </ b> A and the second U bolt 33 </ b> B is in contact with the outer peripheral surface of the mounting shaft 32. Here, each of the lower flange portion 9b of the first lower beam member 9 and the lower flange portion 10b of the second lower beam member 10 is provided with a pair of insertion holes (not shown).

  Both end portions of the first U bolt 33A are inserted into a pair of insertion holes in the lower flange portion 9b of the first lower beam member 9. Both end portions of the second U bolt 33B are inserted into a pair of insertion holes of the lower flange portion 10b of the second lower beam member 10. That is, both end portions of the first U bolt 33A are provided so as to pass through the lower flange portion 9b of the first lower beam member 9, and both end portions of the second U bolt 33B are below the first lower beam member 9. It is provided so as to penetrate the side flange portion 9 b and the lower flange portion 10 b of the second lower beam member 10. Moreover, the both ends of the 1st U volt | bolt 33A and the 2nd U volt | bolt 33B are formed with the thread, and the nut 34 is screwed together.

  The first suspension wheel 30 is rotatably attached to the attachment shaft 32. That is, the first suspension wheel 30 is provided with lower flanges of the first lower beam member 9 and the second lower beam member 10 at one end portion of the lower beam 6 via the mounting shaft 32, the first U bolt 33A, and the second U bolt 33B. It is attached to each lower surface of the parts 9b and 10b. The mounting structure of the second suspension wheel 31 is the same as that of the first suspension wheel 30. The second suspension wheel 31 is attached to the lower suspension wheel via the attachment shaft 35, the third U bolt 33C, and the fourth U bolt 33D. The first lower beam member 9 and the second lower beam member 10 are attached to the lower surfaces of the lower flange portions 9b and 10b at the other end of the beam 6, respectively.

  According to the lift elevator car of the first embodiment as described above, the first suspension vehicle 30 and the second suspension vehicle 31 are adjacent to the first emergency stop mechanism 20 and the second emergency stop mechanism, respectively. It fits between the 1st lower beam member 9 and the 2nd lower beam member 10 so that it may fit. With this configuration, the suspension vehicle mounting beam can be omitted, the manufacturing cost can be reduced, and the mounting structure of the first suspension vehicle 30 and the second suspension vehicle 31 can be downsized (compact). it can. In addition to this, since the suspension vehicle mounting beam is not required, the weight of the car body 2 can be reduced.

  Further, the mounting shafts 32 and 35 are respectively connected to the lower surface of the lower flange portion 9b of the first lower beam member 9 and the lower side of the second lower beam member 10 by the first to fourth U bolts 33A to 33D and the plurality of nuts 34. It is attached to the lower surface of the side flange portion 10b. With this configuration, it is possible to simplify the mounting structure of the first suspension vehicle 30 and the second suspension vehicle 31.

Here, in the conventional lift-type elevator car as shown in FIG. 3 of Patent Document 1, since the suspension vehicle attachment frame is arranged adjacent to the lower beam, the width dimension of the suspension vehicle attachment frame, The hanging point was shifted from the center of gravity of the car. As a result, an eccentric load is applied to the guide shoe.
On the other hand, in the lift type elevator car according to the first embodiment, since the suspension vehicle mounting frame is omitted, compared to the conventional lift type elevator car as shown in FIG. The hanging point can be brought close to the center of gravity of the car, and the uneven load applied to the guide shoe can be reduced. In addition to this, a couple of forces generated in the car body 2 when the first emergency stop mechanism 20 and the second non-top stop mechanism are actuated can be reduced.

Embodiment 2. FIG.
In the first embodiment, the attachment shafts 32 and 35 are attached to the lower flange portion 9 b of the first lower beam member 9 and the lower flange portion 10 b of the second lower beam member 10. On the other hand, in Embodiment 2, the attachment shafts 32 and 35 are attached to the web portion 9 c of the first lower beam member 9 and the web portion 10 c of the second lower beam member 10.

  FIG. 5 is an enlarged side view showing a part of a lift type elevator according to Embodiment 2 of the present invention. FIG. 6 is an enlarged perspective view showing a part of a lift type elevator according to Embodiment 2 of the present invention. 7 and 8 are enlarged perspective views showing the mounting shaft 32 of FIG. 5 to 8, attachment holes are provided in the web portion 9 c of the first lower beam member 9 and the web portion 10 c of the second lower beam member 10. The mounting shaft 32 according to the second embodiment is inserted into these mounting holes.

  Instead of the flat surfaces 32a and 32b of the first embodiment, diagonally cut insertion grooves 32c and 32d are provided at both ends of the mounting shaft 32 of the second embodiment. The insertion grooves 32c and 32d are formed in the state where the mounting shaft 32 is inserted into the mounting hole of the web portion 9c of the first lower beam member 9 and the mounting hole of the web portion 10c of the second lower beam member 10, respectively. It arrange | positions in the location corresponding to the surface on the opposite side of the 1st connection tool 11 in 10c.

  A first pressing member 36A and a second pressing member 36B are attached to the surfaces of the web portions 9c and 10c opposite to the first connector 11 by bolts 37 and nuts (not shown), respectively. The shape of the first pressing member 36A and the second pressing member 36B is a plate shape. The first pressing member 36A and the second pressing member 36B each have a sharp insertion portion 36z. The insertion portions 36z of the first pressing member 36A and the second pressing member 36B are inserted and fitted in the insertion grooves 32c and 32d at both ends of the mounting shaft 32, respectively.

  The insertion portions 36z of the first pressing member 36A and the second pressing member 36B are inserted into the insertion grooves 32c and 32d at both ends of the mounting shaft 32, and the first pressing member 36A and the second pressing member 36B are respectively connected to the first pressing member 36A and the second pressing member 36B. By being attached to the web portion 9 c of the first lower beam member 9 and the web portion 10 c of the second lower beam member 10, the attachment shaft 32 is connected to the web portion 9 c of the first lower beam member 9 and the second lower beam member 10. It is attached to the web part 10c.

  Here, the attachment shaft 35 of the second embodiment is also attached to the web portion 9 c of the first lower beam member 9 and the web portion 10 c of the second lower beam member 10, similarly to the attachment shaft 32. Therefore, the first suspension wheel 30 and the second suspension wheel 31 of the second embodiment are configured so that the web portion 9c of the first lower beam member 9 and the web portion of the second lower beam member 10 are respectively connected via the attachment shafts 32 and 35. 10c. Other configurations are the same as those in the first embodiment.

  According to the lift elevator car of the second embodiment as described above, the first suspension vehicle 30 and the second suspension vehicle 31 are connected to the web of the first lower beam member 9 via the attachment shafts 32 and 35, respectively. It is attached to the portion 9 c and the web portion 10 c of the second lower beam member 10. With this configuration, the same effect as in the first embodiment can be obtained, and most of the first suspension vehicle 30 and the second suspension vehicle 31 are between the first lower beam member 9 and the second lower beam member 10. Therefore, the mounting structure of the first suspension vehicle 30 and the second suspension vehicle 31 can be made smaller than that of the first embodiment.

  A first pressing member 36A and a second pressing member 36B are attached to the web portion 9c of the first lower beam member 9 and the web portion 10c of the second lower beam member 10, respectively. The insertion portions 36z of the first pressing member 36A and the second pressing member 36B are inserted into the insertion grooves 32c and 32d of the attachment shaft 32 and the insertion groove of the attachment shaft 35, respectively. The attachment shafts 32 and 35 are attached to the web portion 9c of the first lower beam member 9 and the web portion 10c of the second lower beam member 10 by the first pressing member 36A and the second pressing member 36B. . With this configuration, as in the first embodiment, the mounting structure of the first suspension vehicle 30 and the second suspension vehicle 31 can be simplified.

  1A, 1B Guide rail, 2 car body, 3 car frame, 4 car floor, 5 car room, 6 lower beam, 7 first vertical column, 8 second vertical column, 9 first lower beam member, 9c web part (side surface Part), 10 second lower beam member, 10c web part (side face part), 20 first emergency stop mechanism, 30 first suspension car, 31 second suspension car, 32, 35 mounting shaft, 32c, 32d insertion groove, 33A 1st U bolt, 33B 2nd U bolt, 33C 3rd U bolt, 33D 4th U bolt, 36A 1st pressing member, 36B 2nd pressing member, 40 main rope.

Claims (5)

The basket floor,
A car room provided on the upper surface of the car floor;
A lower beam having a first lower beam member and a second lower beam member provided on the lower surface of the car floor and spaced apart from each other so as to sandwich a pair of guide rails provided upright on a hoistway; ,
A pair of emergency stop mechanisms attached to one end and the other end of the lower beam, respectively, and disposed between the first lower beam member and the second lower beam member;
Attached to each of one end and the other end of the lower beam, and disposed between the first lower beam member and the second lower beam member so as to be adjacent to each of the pair of emergency stop mechanisms, A lift elevator car comprising: a pair of suspension wheels around which a main rope is wound. The pair of suspension wheels are attached to a side surface portion of the first lower beam member and a side surface portion of the second lower beam member and arranged to pass between the first lower beam member and the second lower beam member. 2. The lift-up type according to claim 1, wherein the lift-up type is attached to a side surface portion of the first lower beam member and a side surface portion of the second lower beam member via each of a pair of attached mounting shafts. Elevator car. The pair of mounting shafts penetrates the side surface portion of the first lower beam member and the side surface portion of the second lower beam member,
A notch-like insertion groove is provided at a position corresponding to the side surface portion of the first lower beam member and the side surface portion of the second lower beam member at both ends of the pair of mounting shafts,
Each of the pair of attachment shafts is attached to the side surface portion of the first lower beam member and the side surface portion of the second lower beam member, and by the pressing members inserted into the respective insertion grooves at both ends, The lift elevator car according to claim 2, wherein the elevator car is attached to a side surface of the first lower beam member and a side surface of the second lower beam member. The pair of suspension wheels are attached to the lower surface of the first lower beam member and the lower surface of the second lower beam member and arranged to pass between the first lower beam member and the second lower beam member. The lift elevator car according to claim 1, wherein the elevator car is attached to the lower surface of the first lower beam member and the lower surface of the second lower beam member via each of a pair of attachment shafts. Each of the pair of mounting shafts includes a plurality of U bolts provided so that both end portions thereof penetrate the lower surface of the first lower beam member and the lower surface of the second lower beam member, and the plurality of U bolts The lift type elevator according to claim 4, wherein the lift type elevator is attached to a lower surface of the first lower beam member and a lower surface of the second lower beam member by a plurality of nuts screwed to both ends. Basket.

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