JP2019156558A - Carrier unit and elevator - Google Patents

Abstract

To provide a carrier unit capable of preventing the deterioration in efficiency of loading/unloading operation on the carrier unit, the prolongation of a construction period, the increase in costs relating to capital investment, and the reduction in operation rate of an elevator.SOLUTION: A carrier unit 40 includes a carrier 70 in which a connected part 78 is provided on a top surface 77a and a frame 50 provided with a frame main body 51 having an engagement part 53 movably engaging with a post 20 and a connection part 54a detachably connected to the connected part 78 and including a carrier supporting frame 52 on which a lower surface 70a of the carrier 70 can be placed.SELECTED DRAWING: Figure 1

Description

The present invention relates to an elevator carrier unit installed in a building under construction, for example, and an elevator.

  Conventionally, in building construction work, an elevator that is installed in a building under construction and lifts and lowers workers, materials, and the like is known (see, for example, Patent Document 1). Such an elevator has a post provided with a rack gear, a transporter that can move along the post, and a drive device such as an electric motor that drives the transporter. The drive device is installed above or below the transporter.

Japanese Patent Laying-Open No. 2006-13904

  The above-described elevator in which the driving device is installed above or below the transporter has the following problems. That is, an elevator is used outdoors in a building or indoors depending on its use. However, when an elevator installed under a transporter is used outdoors, the elevator is landed on the ground floor. Even in this case, the position of the transporter is higher than the ground by the height of the driving device. For this reason, there is a problem that the efficiency of the boarding / alighting work for getting on / off the luggage or the worker on the carrier landing on the ground floor is deteriorated.

  Or, when the elevator with the drive unit installed above the transporter is used indoors, if the transporter reaches the top floor, the drive unit may interfere with the ceiling wall of the building, so the elevator is installed Then there is a problem that the ceiling of the building cannot be formed.

  Thus, since the ceiling cannot be formed in the state where the elevator is installed, first, a part other than the ceiling of the building is formed, and then the ceiling is formed after the elevator is removed. There is a problem that the time required for construction becomes long. Furthermore, there is a problem that rain enters the building under construction when it rains.

  For this reason, both the elevator in which the drive device is installed above the transporter and the elevator in which the drive device is installed below the transporter are owned, and the elevator in which the drive device is installed above the transporter is dedicated for outdoor use. It is conceivable to use an elevator that is used as an elevator and whose driving device is installed below the carrier as an elevator dedicated to indoor use.

  However, when the drive device owns both the elevator installed above the transporter and the elevator installed below the transporter, there arises a problem that the cost for capital investment increases.

  Furthermore, when both types of elevators are owned, if the use of only one type of elevator is required at the construction site, the other type of elevator does not need to be operated, so the operating rate of the owned elevator is reduced. Problem arises.

  For this reason, an object of the present invention is to provide an elevator that can prevent a decrease in the efficiency of getting on and off the carrier, a longer construction period, an increase in costs related to capital investment, and a decrease in the operation rate of the elevator. is there.

  The carrier unit of the present invention is detachably connected to a carrier having a connected portion provided on the upper surface, a frame body provided with an engaging portion movably engaged with a post, and the connected portion. A frame provided with a carrier support frame having a surface on which a lower surface of the carrier can be placed, and a driving device disposed on the opposite side of the surface of the support frame and fixed to the frame And a pinion gear that engages with a rack gear provided on the post, and a drive device that includes an electric motor that drives the pinion gear.

  The elevator according to the present invention includes a post, a rack gear provided on the post, a transporter provided with a connected portion on an upper surface, a frame main body provided with an engaging portion movably engaged with the post, and A frame provided with a connecting portion detachably connected to the connected portion and having a surface on which a lower surface of the transporter can be placed; and a side opposite to the surface of the supporting frame And a drive device including a pinion gear that engages with the rack gear and an electric motor that drives the pinion gear.

  INDUSTRIAL APPLICABILITY The present invention can provide an elevator that can prevent the efficiency of getting on and off the carrier from being lowered, the construction period to be extended, the cost for equipment investment to rise, and the operation rate of the elevator from being lowered.

The front view which shows the structure of the 1st mode of the elevator which concerns on one Embodiment of this invention. The side view which shows the structure of the elevator. The top view which shows the structure of the elevator. The side view which shows the structure of the carrier unit used for the elevator. The perspective view which shows typically the flame | frame used for the carrying device unit. The side view which shows the drive device used for the same frame and the same transporter unit. The disassembled perspective view which shows typically the bottom wall part of the transporter used for the transporter unit. Sectional drawing which shows the bottom wall part along the VIII-VIII line cross section shown in FIG. Sectional drawing which shows the same bottom wall part along the IX-IX line cross section shown in FIG. The front view which shows the connection part of the frame and the carrier. The front view which shows the structure of the 2nd mode of the elevator. The side view which shows the structure of the carrier unit used for the elevator. The side view which shows the elevator. The side view which shows the elevator. The side view which shows the structure of the door and door opening / closing mechanism which are used for the same carrier. The block diagram which shows typically the structure of the door and the door opening / closing mechanism. The side view which shows the structure of the door and the door opening / closing mechanism. The side view which shows the structure of the door and the door opening / closing mechanism.

  An elevator 10 according to an embodiment of the present invention will be described with reference to FIGS. 1 to 18. FIG. 1 is a front view showing the configuration of the elevator 10. FIG. 2 is a side view showing the configuration of the elevator 10. FIG. 3 is a plan view showing the configuration of the elevator 10.

  FIG. 4 is a side view showing the configuration of the transporter unit 40 used in the elevator 10. FIG. 5 is a perspective view schematically showing the frame 50 used in the transporter unit 40. FIG. 6 is a side view showing the driving device 60 used in the frame 50 and the transporter unit 40.

  FIG. 7 is an exploded perspective view schematically showing the bottom wall portion 74 of the transporter 70 used in the transporter unit 40. In FIG. 7, the disassembled bottom wall portion 74 is indicated by a solid line, and the undisassembled bottom wall portion 74 is indicated by a two-dot chain line. 8 and 9 show a cross section of the bottom wall portion 74. Specifically, a cross section showing the bottom wall portion 74 along a cross section taken along line VIII-VIII shown in FIG. It is a cross section shown along the IX-IX line cross section shown in FIG.

  FIG. 10 is a front view showing a connection structure between the frame 50 and the transporter 70. FIG. 11 is a front view showing the configuration of the elevator 10 in the second mode. FIG. 12 is a side view showing the configuration of the transporter unit 40 used in the elevator 10 in the second mode.

  FIG. 13 is a side view showing the configuration of the elevator 10 in the second mode, and specifically shows the vicinity of the lower end of the post 20. FIG. 14 is a side view showing the configuration of the elevator 10 in the second mode, and specifically shows the vicinity of the upper end of the post 20. FIG. 15 is a side view showing the configuration of the door 73 used in the transporter 70 and shows a state in which the door 73 is closed. FIG. 16 is a side view schematically showing the configuration of the door 73 and the door opening / closing mechanism 100. FIG. 17 is a side view showing the configuration of the door 73 and shows a state in which the door 73 is partially opened. FIG. 18 is a side view showing the configuration of the door 73 and shows a state in which the door 73 is opened.

  As shown in FIGS. 1 to 4, the elevator 10 includes a post 20, a rack gear 30 provided on the post 20, a transporter unit 40 configured to be movable along the post 20, and a door opening / closing mechanism 100 (FIG. 16), a tread board 110, and a tread board opening / closing mechanism 120 (shown in FIG. 15).

  The elevator 10 is installed, for example, outdoors or indoors in a building under construction, and moves up and down workers, materials, and the like. The elevator 10 is used in a first mode in which the transporter 70 of the transporter unit 40 is used while being suspended from the frame 50 and in a state where the transporter 70 is placed on a transporter support frame 52 (to be described later) of the frame 50. And a second mode. 1 to 4 show the elevator 10 in the first mode or the transporter unit 40 in the first mode.

  One post 20 is used as an example. The post 20 has a function of guiding the travel of the transporter unit 40. The post 20 extends parallel to the vertical direction V. In the present embodiment, the vertical direction V is defined with the direction in which gravity acts as the downward direction and the opposite direction as the upward direction.

  As shown in FIG. 3, the post 20 includes a guide portion 21 to which the transporter unit 40 can be movably connected, and a support portion 22 that supports the guide portion 21. The guide part 21 is, for example, a cylinder extending in the up-down direction, and a plurality of, for example, four is used as a specific example. The support portion 22 is formed in a column shape. The support part 22 is formed in, for example, a rectangular cross section. The support part 22 is installed in a posture parallel to the vertical direction V. One guide portion 21 is fixed to each of the four corners of the support portion 22 in a posture parallel to the vertical direction V.

  The post 20 configured in this manner is configured by connecting a plurality of units 20a, as shown in FIG. That is, each unit 20 a has a guide portion 21 and a support portion 22.

  Further, a high buffer 23 is provided at the upper end of the post 20 as shown in FIG. The high buffer 23 has a metal fitting 23a for attachment to the post 20 and an elastic body 23b fixed to the metal fitting 23a.

  The elastic body 23b is, for example, a coil spring. The elastic body 23b abuts on a frame 50 (to be described later) of the transporter unit 40 and contracts to stop the upward movement of the transporter unit 40. The elastic body 23b is disposed in the vertical direction V at a position facing a part of the frame body 51 of the frame 50, for example.

  As shown in FIGS. 1, 2, 11, and 13, a buffer 5 is installed near the lower end of the post 20 on the ground. The buffer 5 abuts on a lower end of a frame body 51 of a frame 50 (to be described later) of the transporter unit 40 and contracts to stop the downward movement of the transporter unit 40. The buffer 5 is an elastic body, for example, and is configured by a plurality of coil springs as a specific example. The buffer 5 is disposed at a position facing the lower end of the frame body 51 of the frame 50 (described later) of the transporter unit 40 in the vertical direction V.

  As shown in FIG. 3, the rack gear 30 is fixed to, for example, the support portion 22 of the post 20. The rack gear 30 extends in the vertical direction V. The rack gear 30 extends, for example, from the lower end of the post 20 to a position higher than the lower end of the elastic body 23b of the high buffer 23 by a predetermined distance. The upper end of the rack gear 30 is located at the same height as the upper end of the elastic body 23b of the high buffer 23, for example.

  4 to 6, the transporter unit 40 is attached to and detached from the frame 50, which is movably connected to the post 20, a driving device 60 fixed to the frame 50, an automatic fall prevention device 65, and the frame 50. It has a carrier 70 that can be fixed and a magnetic switch 130. In the transporter unit 40, the frame 50 to which the transporter 70 is fixed moves up and down along the post 20 by the driving device 60. In the present embodiment, the vertical direction of the transporter unit 40 is the same as the vertical direction V when the transporter unit 40 is assembled to the post 20.

  As shown in FIG. 5, the frame 50 includes a frame body 51 and a transporter support frame 52. The frame body 51 is formed in a ladder shape, for example. The frame main body 51 includes a first frame member 51a, a second frame member 51b, and a plurality of beam members 51c.

  For example, the first frame member 51a and the second frame member 51b are arranged in parallel to each other. The plurality of beam members 51c are fixed to the first frame member 51a and the second frame member 51b.

  Further, as shown in FIGS. 2 and 3, the frame main body 51 has an engaging portion 53 that is movably engaged with the guide portion 21 of the post 20. As shown in FIG. 3, the engaging portion 53 has, for example, a pair of rollers 53 a that sandwich the guide portion 21 of the post 20. The engaging portion 53 is provided on each of the first frame member 51a and the second frame member 51b. For example, a plurality of engaging portions 53 may be provided on each of the first frame member 51a and the second frame member 51b.

  In the frame main body 51 configured as described above, the first frame member 51a and the second frame member 51b are in a posture parallel to the vertical direction when the engaging portion 53 is engaged with the guide portion 21. Further, the first frame member 51a and the second frame member 51b are arranged in a direction orthogonal to the vertical direction. In the present embodiment, the width direction W is a direction in which the first frame member 51a and the second frame member 51b are arranged. Further, a direction orthogonal to the vertical direction V and orthogonal to the width direction W is defined as a front-rear direction F.

  The transporter support frame 52 is fixed to the frame body 51 as shown in FIG. The transporter support frame 52 is configured to be able to suspend the transporter 70 and to place the transporter 70 thereon. That is, the elevator 10 is used in the first mode in which the transporter 70 is suspended from the transporter support frame 52, and in the second mode in which the transporter 70 is placed on the transporter support frame 52. The mode is used in one of the two modes. Although FIG. 1 thru | or FIG. 4 shows and demonstrates the state in which the elevator 10 was used by the 1st mode, in the 2nd mode, it will be in the state which reversed the flame | frame 50 up and down (V direction).

  The transporter support frame 52 includes a first horizontal frame 54, a second horizontal frame 58, and a fixed frame 55 that fixes the first horizontal frame 54 and the second horizontal frame 58 to the frame body 51. ing.

  The first horizontal frame 54 is formed from, for example, a rod-shaped member. In the present embodiment, the first horizontal frame 54 is formed of, for example, a bar member having a rectangular cross section. The first horizontal frame 54 is disposed with a gap in the front-rear direction F with respect to the frame body 51. The side on which the first horizontal frame 54 is disposed with respect to the frame body 51 is the front side. The first horizontal frame 54 is fixed to the frame main body 51 via the fixed frame 55, for example, in a posture parallel to the width direction W. The length of the first horizontal frame 54 in the longitudinal direction is longer than the length of the frame body 51 in the width direction W.

  At both ends of the first horizontal frame 54, connecting portions 54a are formed. The connecting portion 54 a is formed on the upper surface of the transporter 70 so that a connecting portion 78 described later can be connected. The connecting portion 54a includes, for example, a protruding portion 54b that protrudes in the width direction from each of both ends of the first horizontal frame 54, and a hole 54c formed in the protruding portion 54b. The protruding portion 54 b is disposed within the thickness in the vertical direction V of the first horizontal frame 54. In other words, the protrusion 54 b is disposed between the upper end and the lower end of the first horizontal frame 54. In other words, the upper end of the protruding portion 54 b is at the same height as the upper end of the first horizontal frame 54, or at a position lower than the upper end of the first horizontal frame 54. The lower end of the protruding portion 54 b is at the same height as the lower end of the first horizontal frame 54 or higher than the lower end of the first horizontal frame 54.

  In the present embodiment, the protruding portion 54 b is formed by fixing a plate-like suspension piece member 56, which is different from the first horizontal frame 54, to each of both end portions of the first horizontal frame 54. The upper end of the suspension piece member 56 is at the same height as the upper end of the first horizontal frame 54 or at a position lower than the upper end. The lower end of the suspension piece member 56 is flush with the lower end (surface 52a) of the first horizontal frame 54, or is higher than the lower end.

  The second horizontal frame 58 is formed from, for example, a rod-shaped member. In the present embodiment, the second horizontal frame 58 is formed from, for example, a bar member having a rectangular cross section. The second horizontal frame 58 is disposed between the frame body 51 and the first horizontal frame 54.

  The second horizontal frame 58 is fixed to the frame main body 51 via the fixed frame 55, for example, in a posture parallel to the width direction W. The length of the second horizontal frame 58 in the longitudinal direction is longer than the length of the frame body 51 in the width direction W. The length of the second horizontal frame 58 in the longitudinal direction is shorter than the length of the first horizontal frame 54 in the longitudinal direction.

  In the present embodiment, the first horizontal frame 54 and the second horizontal frame 58 are formed of rods having the same cross-sectional shape.

  The fixed frame 55 includes, for example, a first beam member 55a, a second beam member 55b, a first wand 55c, and a second wand 55d. The first beam member 55a, the second beam member 55b, the first wand 55c, and the second wand 55d are bar members having the same cross-sectional shape as the first horizontal frame 54. Formed from.

  The first beam member 55a is formed in a rod shape, for example. One end of the first beam member 55a is fixed to one end side of the first frame member 51a. Here, being fixed to one end side means being fixed to a portion close to one end with respect to the other end. The other end of the first beam member 55 a is fixed to one end of the first horizontal frame 54. The first beam member 55a is fixed to the first frame member 51a and the first horizontal frame 54 in a posture orthogonal to the first frame member 51a. In addition, one end of the second horizontal frame 58 is fixed to the first beam member 55a.

  The second beam member 55b is formed in a rod shape, for example. One end of the second beam member 55b is fixed to one end side of the second frame member 51b. Here, being fixed to one end side means being fixed to a portion close to one end with respect to the other end. The other end of the second beam member 55 b is fixed to the other end of the first horizontal frame 54. The second beam member 55b is fixed to the second frame member 51b and the first horizontal frame 54 in a posture orthogonal to the second frame member 51b. Further, the other end of the second horizontal frame 58 is fixed to the second beam member 55b.

  The length along the width direction W from the first beam member 55 a to the second beam member 55 b is such that the length in the longitudinal direction of the first horizontal frame 54 is longer than the length in the width direction W of the frame body 51. Therefore, the length gradually increases from the frame body 51 toward the first horizontal frame 54.

  The upper end of the first beam member 55a, the upper end of the second beam member 55b, the upper end of the first beam member 55a, and the upper end of the second beam member 55b are on the same plane perpendicular to the vertical direction. To position. The lower end of the first beam member 55a, the lower end of the second beam member 55b, the lower end of the first beam member 55a, and the lower end of the second beam member 55b are on the same plane perpendicular to the vertical direction. To position. In the present embodiment, the first horizontal frame 54, the second horizontal frame 58, the first beam member 55a, and the second beam member 55b are, for example, rod members having the same cross section. Is formed. For this reason, it is easy to adopt a configuration in which the respective upper ends are arranged on the same plane and the respective lower ends are arranged on the same plane.

  The first beam member 55a and the second beam member 55b are each formed with a connecting portion 58a. The connecting portion 58a is formed on the upper surface of the transporter 70 so that a connecting portion 78 described later can be connected. For example, the connecting portion 58a is disposed at a position that intersects with the extension line of the second horizontal frame 58 on the outer side surface in the width direction of each of the first beam member 55a and the second beam member 55b.

  The connecting portion 58a has a protruding portion 58b protruding in the width direction and a hole 58c formed in the protruding portion 58b. The protrusion 58b formed on the first beam member 55a is disposed within the thickness in the vertical direction V of the first beam member 55a. In other words, the protrusion 58b is disposed between the upper end and the lower end of the first beam member 55a. In other words, the upper end of the protrusion 58b is at the same height as the upper end of the first beam member 55a or at a position lower than the upper end of the first beam member 55a. The lower end of the protrusion 58b is at the same height as the lower end of the first beam member 55a or higher than the lower end of the first beam member 55a. The protruding portion 58b formed on the second beam member 55b is disposed within the thickness in the vertical direction V of the second beam member 55b, similarly to the protruding portion 58b formed on the first beam member 55a. .

  In the present embodiment, the projecting portion 58b is different from the first beam member 55a and the second beam member 55b in that the plate-like suspension piece member 59 is replaced with the first beam member 55a and the second beam member 55b, respectively. It is formed by fixing to. The upper end of the suspension piece member 59 is at the same height as the upper end of the first horizontal frame 54, that is, the upper end of the second horizontal frame 58, or a position lower than the upper end. The lower end of the suspension piece member 56 is flush with the lower end (surface 52a) of the first horizontal frame 54, that is, the lower end of the second horizontal frame 58, or higher than the lower end.

  In the embodiment, the connecting portion 54a and the connecting portion 58a configured as described above have holes 54c and 58c penetrating in the front-rear direction, and the holes 54c and 58c are arranged at the same height.

  The first cane 55c is formed in a rod shape, for example. One end of the first wand 55c is fixed to one end of the first frame member 51a. The other end of the first cane 55 c is fixed to one end of the first horizontal frame 54.

  The second cane 55d is formed in a rod shape, for example. One end of the second wand 55d is fixed to one end of the second frame member 51b. The other end of the second wand 55d is fixed to the other end of the first horizontal frame 54.

  The length along the width direction W from the first wand 55c to the second wand 55d is that the length in the longitudinal direction of the first horizontal frame 54 is longer than the length in the width direction of the frame body 51. The length gradually increases from the frame body 51 toward the first horizontal frame 54.

  In addition, one end 55c1 of the first cane 55c is positioned closer to one end of the first frame member 51a than one end 55a1 of the first beam member 55a. One end 55d1 of the second cane 55d is positioned closer to one end of the second frame member 51b than the one end 55b1 of the second beam member 55b. Therefore, the first wand 55 c and the second wand 55 d are fixed to the frame main body 51 and the first horizontal frame 54 in a posture inclined with respect to the longitudinal direction of the frame main body 51.

  The surface 52a on the other end side of the frame main body 51 of the transporter support frame 52 configured as described above is configured as a surface on which the transporter 70 can be placed. The surface 52a is a lower surface when the elevator 10 is used in the first mode. The surface 52a is an upper surface when the elevator 10 is used in the second mode.

  In this embodiment, the surface 52a includes a first horizontal frame 54, a second horizontal frame 58, a first beam member 55a, and a second beam member 55b. The surface 52a is formed in a plane orthogonal to the longitudinal direction of the frame body 51, for example. In the state in which the transporter unit 40 is assembled to the post 20, the post 20 is parallel to the vertical direction V, so the longitudinal direction of the frame body 51 is parallel to the vertical direction V. For this reason, in a state in which the transporter unit 40 is assembled to the post 20, the surface 52 a is a plane that is orthogonal to the vertical direction V.

  In the present embodiment, the first horizontal frame 54, the second horizontal frame 58, the first beam member 55a, and the second beam member 55b are arranged on the opposite sides of the canes 55c and 55d in the vertical direction V. The planes are formed on the same plane perpendicular to the vertical direction V. And the surface 52a is formed of these planes. The suspension piece members 56 and 59 and a bolt insertion member 151 to be described later do not protrude on the opposite side of the canes 55c and 55d in the vertical direction V with respect to the surface 52a.

  Further, as shown in FIG. 4, the frame main body 51 is in a state where the transporter 70 is suspended from the transporter support frame 52 by connecting the connected portion 78 to the connecting portion 54 a and the connecting portion 58 a, that is, the elevator 10. Is used in the first mode, one end 57 serving as the lower end of the frame body 51 has a length located above the lower surface 70 a of the transporter 70. Furthermore, as shown in FIG. 12, the frame main body 51 is in a state where the transporter 70 is placed on the surface 52a of the transporter support frame 52, that is, in a state where the elevator 10 is used in the second mode. The upper surface of the carrying device 70 has a length that is located above one end 57 that is the upper end of the frame body 51.

  As shown in FIGS. 2 and 3, the drive device 60 includes a pinion gear 61 that meshes with the rack gear 30, and a drive unit 62 that drives the pinion gear 61. The drive unit 62 includes, for example, an electric motor 63 and a speed reducer 64 that decelerates and transmits the rotation of the output shaft of the electric motor 63 to the pinion gear 61. The electric motor 63 is configured to rotate the pinion gear 61 in both directions.

  In addition, for example, a plurality of driving devices 60 are used, and two driving devices 60 are used as a specific example. As shown in FIG. 6, the drive device 60 configured in this way is disposed on the opposite side of the surface 52 a in the frame 50 and is fixed to the frame 50. In the present embodiment, the driving device 60 is disposed between the first wand 55 c and the second wand 55 d and is fixed to the frame body 51.

  The automatic fall prevention device 65 is configured to be able to stop the ascending or descending of the transporter unit 40 when the ascending speed or descending speed of the transporter unit 40 is equal to or higher than a predetermined speed set in advance. The automatic fall prevention device 65 includes, for example, a gear that engages with the rack gear 30, a sensor that detects the number of rotations of the gear and stops the lifting and lowering of the transporter unit 40, and a lowering speed of the transporter unit 40 is equal to or higher than a predetermined speed. In this case, there is provided a centrifugal brake that stops the rotation of the gear engaged with the rack gear 30 and stops the lowering of the transporter unit 40. The automatic fall prevention device 65 configured as described above is disposed on the opposite side in the vertical direction V of the surface 52a. In the present embodiment, the automatic fall prevention device 65 is disposed between the first wand 55 c and the second wand 55 d, and is fixed to the frame body 51.

  The transporter 70 is formed so as to accommodate workers, materials, and the like. The transporter 70 includes a transporter body 71 and a door 73 that is provided on the transporter body 71 and opens and closes an opening 72 of the transporter body 71.

  For example, the outer appearance of the transporter main body 71 is formed in a rectangular parallelepiped shape. The transporter main body 71 includes a bottom wall portion 74, a peripheral wall portion 75 fixed to the bottom wall portion 74, and a ceiling wall portion 77 fixed to the peripheral wall portion 75.

  As shown in FIG. 7, the bottom wall portion 74 includes a bottom wall portion main body 80 and a load detection sensor 81 that detects the weight of the contents accommodated in the transporter 70. In FIG. 7, the peripheral wall portion 75 and the ceiling wall portion 77 are omitted. The load detection sensor 81 is, for example, a load cell. The bottom surface of the bottom wall portion 74 is formed in a plane. The lower surface of the bottom wall portion 74 becomes the lower surface 70 a of the transporter 70. In this embodiment, the lower surface 70a is a lower surface of a bottom wall frame 82 described later.

  The bottom wall main body 80 is placed on the bottom wall frame 82 formed in a frame shape, a plurality of beams 83 fixed in the bottom wall frame 82, and the plurality of beams 83. A bottom plate 84.

  The bottom wall frame 82 is formed in a rectangular frame shape, for example. The beam 83 is fixed to two points on the inner peripheral surface of the bottom wall frame 82 facing each other. Two beams 83 are provided apart in the width direction. One beam 83 is disposed in the vicinity of one edge along the front-rear direction F of the bottom wall frame 82. The other beam 83 is disposed in the vicinity of the other edge along the front-rear direction F of the bottom wall frame 82. Both beams 83 extend in the front-rear direction F.

  The beam 83 includes, for example, two beam members 83a and a support plate member 83b. The support plate member 83b is disposed between the two beam members 83a. The upper surface 83a1 of the two beam members 83a and the upper surface 83b1 of the support plate member 83b are lower than the upper surface 82a of the bottom wall frame 82.

  A load detection sensor 81 is fixed to each of both ends in the longitudinal direction of the upper surface 83b1 of the support plate member 83b. Since the beams 83 are arranged as described above, the load detection sensors 81 are arranged at each of the four corners of the internal space of the bottom wall frame 82.

  The bottom plate 84 is disposed in the bottom wall frame 82 and is placed on the load detection sensor 81. The bottom plate 84 forms a placement surface 84a on which people and materials are placed. In FIG. 7, the bottom plate 84 is shown upside down. That is, in FIG. 7, the lower surface 84b of the bottom plate 84 is facing upward, and the placement surface 84a is facing downward. Actually, the bottom plate 84 is assembled to the bottom wall portion frame 82 in a posture in which a beam 85 described later faces downward.

  For example, the bottom plate 84 is formed in a rectangular shape slightly larger than a rectangle formed by the inner edge of the bottom wall frame 82. In the present embodiment, a plurality of beams 85 are formed on the lower surface 84 b of the bottom plate 84. The beam 85 is disposed at a position where it is placed on the load detection sensor 81 when the bottom plate 84 is disposed in the bottom wall frame 82. The beam 85 is formed in a rectangular shape along the periphery of the bottom plate 84. Alternatively, the bottom plate 84 extends in the width direction W at the center in the front-rear direction F.

The sum of the thicknesses of the bottom plate 84 and the beam 85 is obtained by placing the bottom plate 84 and the beam 85 integrally in the bottom wall frame 82 and placing the mounting surface 84 a of the bottom plate 84 and the upper surface 82 a of the bottom wall frame 82. Has a thickness that is flush or substantially flush.
In the present embodiment, the bottom plate 84 is formed in a rectangular shape slightly larger than the rectangle formed by the inner edge of the bottom wall frame 82 as described above. The thickness of the integrated body of the bottom plate 84 and the beam 85 in the vertical direction V is such that the placement surface 84a is disposed at a position slightly higher than the top surface 82a of the bottom wall frame 82. A part of the peripheral edge of the bottom plate 84, for example, the front part thereof overlaps with the inner edge part of the bottom wall frame 82 in the vertical direction V in the vertical direction. This is an example of being substantially flush. In this case, a gap is provided between the front part of the peripheral edge of the bottom plate 84 and the upper surface of the bottom wall frame 82 so as not to impede load detection by the load detection sensor 81.

  For example, when the bottom plate 84 is formed in a rectangular shape slightly smaller than the rectangle formed by the inner edge of the bottom wall frame 82, the thickness in the vertical direction V of the integrated bottom plate 84 and beam 85 is The surface 84a may have a thickness that is flush with the upper surface 82a.

  In this embodiment, as shown in FIGS. 8 and 9, the beam 85 has a portion that faces the load detection sensor 81 when the bottom plate 84 is disposed in the bottom wall frame 82, as shown in FIGS. A contact portion 86 that contacts the sensor 81 is formed. The abutting portion 86 is a plate member having a predetermined thickness, for example, and is fixed to the beam 85 by a fixture 87 such as a bolt.

  Thus, when the contact portion 86 is formed on the beam 85, the bottom plate 84 is arranged in the bottom wall frame 82 in terms of the thickness of the bottom plate 84, the thickness of the beam 85, and the thickness of the contact portion 86. The mounting surface 84a of the bottom plate 84 is flush with the upper surface 82a of the bottom wall frame 82, or the mounting surface 84a is substantially flush with the upper surface 82a.

  The peripheral wall 75 is fixed to the upper surface 82a of the bottom wall frame 82, for example. The peripheral wall portion 75 has two side wall portions 75 a and a rear wall portion 76. The ceiling wall part 77 is fixed to the upper end of the peripheral wall part 75.

  On the upper surface 77a of the ceiling wall portion 77, a connecting portion 54a and a connected portion 78 that can be connected to the connecting portion 58a are formed. In the present embodiment, since two connecting portions 54a are formed and two connecting portions 58a are formed, four connected portions 78 are formed. The to-be-connected part 78 is formed in the location which opposes each of the connection part 54a and the connection part 58a, when the carrier 70 is arrange | positioned under the carrier support frame 52. As shown in FIG. As shown in FIG. 10, the connected portion 78 includes a protruding portion 78a that protrudes upward from the upper surface 77a and a hole 78b formed in the protruding portion 78a. The hole 78b penetrates the protrusion 78a in the front-rear direction F.

  With the coupled portion 78 and the coupling portion 54a facing each other in the front-rear direction F, the holes 78b and 54c are pinned in a state where the hole 78b of the coupled portion 78 and the hole 54c of the coupling portion 54a are opposed to each other in the front-rear direction F. By inserting 79, the connecting portion 54a and the connected portion 78 are connected via the pin 79.

  Similarly, in a state where the coupled portion 78 and the coupling portion 58a are opposed to each other in the front-rear direction F, and the hole 78b of the coupled portion 78 and the hole 58c of the coupling portion 58a are opposed to each other in the front-rear direction F, By inserting the pin 79 through 58c, the connecting portion 58a and the connected portion 78 are connected via the pin 79. The pin 79 is provided so that it can be fixed to the hole 78b and the hole 54c, and can be fixed to the hole 78b and the hole 58c. Moreover, the part arrange | positioned in hole 54c, 58c, 78b of the pin 79 is formed in cross-sectional circle, for example.

  A plurality of the connected parts 78 configured as described above are provided as a specific example, four. The two to-be-connected parts 78 connected to the connecting part 54a are spaced apart in the width direction W. One of the two connected portions 78 is connected to one connected portion 54 a by a pin 79. The other connecting portion 54 a is connected to the other connected portion 78 by a pin 79.

  Similarly, the two connected portions 78 connected to the connecting portion 58a are spaced apart in the width direction W. One of the two connected portions 78 is connected to one connected portion 58 a by a pin 79. The other connecting portion 58 a is connected to the other connected portion 78 by a pin 79. For this reason, by connecting with the pin 79, switching between the first mode and the second mode is facilitated.

  The holes 78b of all the connected portions 78 penetrate in the front-rear direction and are arranged at the same height position.

  In addition, in the state where the transporter unit 40 is used in the second mode, the first fixing structure 150 that fixes the transporter 70 to the surface 52a of the transporter support frame 52, and each of the first mode and the second mode. And a second fixing structure 160 that fixes the transporter 70 to the frame main body 51.

  As shown in FIGS. 3 and 5, the first fixing structure 150 includes a bolt insertion member 151 provided on the first horizontal frame 54 and the second horizontal frame 58 of the transporter support frame 52, and FIG. As shown in FIG. 12, the nut 152 provided on the bottom wall portion 74 and a bolt 153 that engages with the nut 152 are provided.

  As shown in FIGS. 3 and 5, two bolt insertion members 151 are fixed to the surface of the first horizontal frame 54 facing the second horizontal frame 58 as an example. The bolt insertion member 151 has a hole 151a into which the bolt 153 can be inserted. The hole 151 a passes through the bolt insertion member 151. Further, two bolt insertion members 151 are fixed to the surface of the second horizontal frame 58 facing the first horizontal frame 54.

  In the first horizontal frame 54 and the second horizontal frame 58, the bolt insertion member 151 is fixed at a position that does not interfere with the transporter 70 when the transporter 70 is placed on the surface 52a of the transporter support frame 52. Yes. In the present embodiment, the bolt insertion member 151 is disposed flush with the surface 52a or inside the first horizontal frame 54 and the second horizontal frame 58 in the vertical direction with respect to the surface 52a.

  The nuts 152 are respectively provided at portions facing the bolt insertion member 151 of the transporter support frame 52 when the transporter 70 is placed on the surface 52 a of the transporter support frame 52. In this embodiment, the nut 152 is fixed to the inner surface of the bottom wall frame 82 as shown in FIG.

  The lower end of the nut 152 is disposed at the same height as the lower surface 70a or higher than the lower surface 70a. The nut 152 is disposed at a position where it does not interfere with the bottom plate 84 and the beam 85. Alternatively, the nut 152 has a height that does not interfere with the bottom plate 84 and the beam 85.

  As shown in FIGS. 12 and 13, the bolt 153 is screwed into the nut 152 while the bolt insertion member 151 is inserted. Thus, the bolt 153 is screwed into the nut 152, whereby the bolt insertion member 151 is fixed between the head of the bolt 153 and the nut 152. Thus, the transporter 70 is fixed to the surface 52 a of the transporter support frame 52 by the first fixing structure 150.

  The 2nd fixing structure 160 was provided in the frame main body 51 as shown in FIG.2 and FIG.12 and the bolt insertion hole 161 formed in the rear wall part 76 of the carrier 70 as shown in FIG.1 and FIG.2. A nut 162 and a bolt 163 that can be screwed onto the nut as shown in FIG. 2 are provided.

  The bolt insertion hole 161 includes a first bolt insertion hole 161a used when the transporter unit 40 is used in the first mode, and a second bolt insertion hole 161b used when used in the second mode. And have.

  The first bolt insertion hole 161a is formed such that the bolt 163 can be inserted therethrough. When the first bolt insertion hole 161a is used in the first mode, that is, in a state where the connecting portion 54a and the connecting portion 58a are connected to the connected portion 78 and the transporter 70 is suspended from the transporter support frame 52. At some point, it is formed at a position facing the nut 162. In the present embodiment, as an example, two are formed in the vertical direction at two positions separated in the width direction W. That is, a total of four are formed.

  The second bolt insertion hole 161b is formed such that the bolt 163 can be inserted therethrough. The second bolt insertion hole 161b is formed at a position facing the nut 162 when used in the second mode, that is, when the transporter 70 is placed on the surface 52a of the transporter support frame 52. . In the present embodiment, as an example, two are formed in the vertical direction at two positions separated in the width direction W. That is, a total of four are formed.

  As shown in FIGS. 2 and 12, the nut 162 is fixed to the frame body 51 via a bracket 164 (shown in FIG. 5) as an example. In the present embodiment, the two nuts 162 are fixed to the first frame member 51a via the bracket 164. Two nuts 162 are fixed to the second frame member 51b via the bracket 164.

  In the present embodiment, when the transporter 70 is fixed to the frame 50, the transporter 70 is disposed with a gap between the transporter 70 and the frame body 51. That is, there is a gap between the rear wall portion 76 and the frame body 51. In this embodiment, since there is this gap, the nut 162 is fixed to the first frame member 51 a and the second frame member 51 b via the bracket 164, and the nut 162 is attached to the transporter 70 rather than the frame 50. Close position is arranged.

  Note that the nut 162 is not limited to being fixed via the bracket 164. In another example, the nut 162 may be directly fixed to each of the first frame member 51a and the second frame member 51b.

  As shown in FIG. 15, the door 73 includes an upper door 91 formed so that the upper half range of the opening 72 can be opened and closed, and a lower door 92 formed so that the range of the lower part of the opening 72 can be opened and closed. Have. In the present embodiment, the range in the vicinity of the lower edge of the opening 72 is opened and closed by a tread board 110 described later. For this reason, the lower door 92 is formed so as to be able to open and close the range except the range opened and closed by the tread board 110 in the lower half range of the opening 72.

  The upper door 91 has a size that can cover the range of the upper half of the opening 72 in the front-rear direction F. As an example, the planar shape is rectangular. The lower door 92 has a size that can cover the range of the lower half of the opening 72 excluding the range opened and closed by the tread 110 in the front-rear direction F. As an example, the planar shape is It is a rectangle. The length of the upper door 91 in the vertical direction V and the length of the lower door 92 in the vertical direction V are, for example, substantially the same.

  The state in which the upper door 91 is in a position covering the upper half range of the opening 72 when the upper door 91 is viewed in the front-rear direction F is defined as the state in which the upper door 91 is in the upper door closed position P1. The state in which the upper door 91 is in the position to open the opening is the state in which the upper door 91 is in the upper door open position P2 (shown in FIG. 18). The upper door opening position P2 is a position above the upper door closing position P1.

  When the lower door 92 is in a position covering the range excluding the range opened and closed by the tread 110 in the lower half range of the opening 72 when viewed in the front-rear direction F as shown in FIG. It is assumed that the door 92 is in the lower door closing position P3. The state where the lower door 92 is at the position where the opening 72 is opened is the state where the lower door 92 is at the lower door opening position P4 (shown in FIG. 18). That is, the lower door opening position P4 is substantially the same position in the vertical direction V as the upper door opening position P2. The lower door opening position P4 is an upper position with respect to the lower door closing position P3.

  As shown in FIG. 18, the state in which the upper door 91 is in the upper door open position P2 and the lower door 92 is in the lower door open position P4 is a state in which the door 73 is in the open position. The state in which the door 73 is in the open position is a state in which the door 73 is fully opened. Here, the state of being fully opened indicates that the door 73 is open to a preset maximum opened position.

  As shown in FIG. 15, the state in which the upper door 91 is in the upper door closed position P1 and the lower door 92 is in the lower door closed position P3 is a state in which the door 73 is in the closed position. The state in which the door 73 is in the closed position indicates a state in which the opening 72 is set in the most closed position. In the present embodiment, as described above, the range in the vicinity of the lower end edge of the opening 72 is opened and closed by the tread board 110 described later. For this reason, in this embodiment, the position where the door 73 closes the opening 72 most is a position that covers the range excluding the range where the opening 72 is opened and closed by the tread plate 110.

  As shown in FIG. 16, the door opening / closing mechanism 100 is configured to be able to open and close the door 73. The door opening / closing mechanism 100 includes a door opening / closing mechanism pulley 101 that is freely rotatable, a door opening / closing mechanism electric motor 102 that is rotatably formed on the door opening / closing mechanism pulley 101, and a door opening / closing mechanism pulley 101. A door opening / closing mechanism chain 103 having one end connected to the upper end of the lower door 92, an opening / closing mechanism counter weight 104 connected to the other end of the door opening / closing mechanism chain 103, and a lower door. And a door opening / closing mechanism engaging portion 105 provided at the lower end portion of 92.

  The door opening / closing mechanism pulley 101 is rotatably supported by a portion that moves up and down integrally with the carrier main body 71 or the carrier 70. In the present embodiment, the door opening / closing mechanism pulley 101 is rotatably connected to one side wall 75a of the transporter body 71 as an example.

  The rotation axis of the door opening / closing mechanism pulley 101 is parallel to the width direction W. The door opening / closing mechanism pulley 101 is formed with a groove in which the door opening / closing mechanism chain 103 can be engaged.

  The door opening / closing mechanism electric motor 102 is fixed to, for example, the transporter body 71 or the ceiling wall 77. The door opening / closing mechanism electric motor 102 is formed so that the door opening / closing mechanism pulley 101 can rotate. The output shaft of the door opening / closing mechanism electric motor 102 is connected to the door opening / closing mechanism pulley 101 via a speed reduction mechanism, for example. The rotation of the output shaft of the door opening / closing mechanism electric motor 102 is transmitted to the door opening / closing mechanism pulley 101 via the speed reduction mechanism.

  The door opening / closing mechanism chain 103 is hung around the door opening / closing mechanism pulley 101. The door opening / closing mechanism chain 103 is formed to be engageable with a convex portion or a groove formed on the door opening / closing mechanism pulley 101. Therefore, when the door opening / closing mechanism pulley 101 rotates, the door opening / closing mechanism chain 103 is fed forward or rearward with respect to the door opening / closing mechanism pulley 101.

  One end of the door opening / closing mechanism chain 103 is fixed to the upper end of the lower door 92. The lower door 92 is disposed rearward (on the frame 50 side) with respect to the upper door 91. Therefore, the lower door 92 does not overlap the upper door 91 in the vertical direction V. Therefore, the door opening / closing mechanism chain 103 can be fixed to the upper end portion of the lower door 92.

  Further, the door opening / closing mechanism pulley 101 is disposed at a position in which the front portion of the door opening / closing mechanism chain 103 folded back by the door opening / closing mechanism pulley 101 extends in parallel with the vertical direction V. Yes.

  The opening / closing mechanism counterweight 104 is connected to the other end of the door opening / closing mechanism chain 103. In FIG. 16, the opening / closing mechanism counterweight 104 when the lower door 92 is in the lower door closing position P3 is indicated by a two-dot chain line. The opening / closing mechanism counterweight 104 has substantially the same weight as the lower door 92.

  The door opening / closing mechanism engaging portion 105 is provided at the lower end of the lower door 92. The door opening / closing mechanism engaging portion 105 protrudes forward from the front surface of the lower door 92, and when the lower door 92 moves upward to a position overlapping the upper door 91 in the front-rear direction F, the lower end of the upper door 91 is moved downward from below. It is formed so as to be able to contact upward.

  Specifically, the door opening / closing mechanism engaging portion 105 protrudes to a position overlapping the upper door 91 in the vertical direction. In the present embodiment, the door opening / closing mechanism engaging portion 105 extends from one end in the width direction W to the other end of the lower door 92 as an example.

  FIG. 17 shows the door 73 in a state where the upper door 91 is in the upper door closed position P <b> 1 and the door opening / closing mechanism engaging portion 105 is moved to a position where it abuts against the lower edge of the upper door 91. FIG. 17 shows a state where the range covered by the lower door 92 in the opening 72 is opened.

As shown in FIG. 17, a tread plate 110 is provided at the lower end of the transporter main body 71. The tread board 110 has a plate shape. The tread board 110 is rotatably supported by the carrier main body 71 by the support portion 111. As another example, the tread board 110 may be rotatably supported by a support portion 111 at a portion that moves up and down integrally with the transporter body 71.
The rotation axis of the tread board 110 is parallel to the width direction W. The tread board 110 is supported by the support portion 111 so as to be rotatable between a tread board closed position P6 and a tread board open position P7 (shown in FIG. 18) where the tread board 110 protrudes to the outside of the transporter body 71. . In the tread board open position P7, the tread board 110 has a posture in which the upper surface thereof is orthogonal or substantially orthogonal to the vertical direction V.

  The tread board closed position P6 is a position where the tread board 110 is retracted toward the accommodation space in the transporter body 71 so that the tread board 110 does not contact the floor or ceiling of each floor of the building under construction when the transporter 70 is raised or lowered. It is. In the present embodiment, the tread board 110 also has a function of covering the range in the vicinity of the lower edge of the opening 72 in the front-rear direction F in the state at the tread board closed position P6. For this reason, the tread board 110 assumes a posture substantially parallel to the vertical direction V at the tread board closed position P6.

  Return springs 112 are provided at the lower ends of the side wall portions 75a of the transporter body 71. The return spring 112 is a spring spring, for example, and is arranged in a posture in which the axis is parallel to the front-rear direction F. Further, the return spring 112 is formed so as to be able to come into contact with the tread plate 110 in the tread plate closed position P6 from behind (see FIG. 16).

  The tread board opening / closing mechanism 120 is configured to be able to open and close the tread board 110 in conjunction with the opening and closing of the door 73. Specifically, as shown in FIG. 16, the tread plate opening / closing mechanism 120 includes a first tread plate opening / closing mechanism pulley 121, a second tread plate opening / closing mechanism pulley 122, and a tread plate opening / closing mechanism that are formed to be rotatable. The tread plate opening / closing mechanism chain 123 that is turned around the pulleys 121, 122 and connected at one end to the tread plate 110, and the first tread plate opening / closing mechanism engaging portion provided at the other end of the tread plate opening / closing mechanism chain 123 124, and a second tread plate opening / closing mechanism engaging portion 125 formed on the upper door 91 so as to be engageable with the first tread plate opening / closing mechanism engaging portion 124.

  For example, the first tread plate opening / closing mechanism pulley 121 is disposed in the vicinity of the door opening / closing mechanism pulley 101 on the outer side in the width direction of the transporter main body 71. The first treadle opening / closing mechanism pulley 121 is rotatably supported by, for example, the side wall 75a of the transporter body 71. The first treadle opening / closing mechanism pulley 121 may be rotatably supported by the transporter body 71 or a part that moves up and down integrally with the transporter 70.

  In FIGS. 15, 17, and 18, the door opening / closing mechanism 100 disposed in the vicinity of the tread board opening / closing mechanism 120 is omitted for easy understanding of the tread board opening / closing mechanism 120. In the present embodiment, the tread board opening / closing mechanism 120 is disposed on the same side as the door opening / closing mechanism 100 on the outer side in the width direction of the transporter main body 71. As another example, the tread board opening / closing mechanism 120 may be provided on the opposite side in the width direction with respect to the side on which the door opening / closing mechanism 100 is provided.

  In the present embodiment, the first tread plate opening / closing mechanism pulley 121 is rotatably supported in the vicinity of the door opening / closing mechanism pulley 101 on the side wall portion 75a of the transporter main body 71, for example. The first treadle opening / closing mechanism pulley 121 is disposed behind the lower door 92. Further, the first tread plate opening / closing mechanism pulley 121 is located behind the support portion 111 of the tread plate 110.

  The rotation axis of the first treadle opening / closing mechanism pulley 121 is parallel to the width direction W. The first tread plate opening / closing mechanism pulley 121 is formed with a protrusion or groove to which the tread plate opening / closing mechanism chain 123 can be engaged.

  In the present embodiment, the second tread plate opening / closing mechanism pulley 122 is the same as the first tread plate opening / closing mechanism pulley 121, for example. The diameter of the first treadle opening / closing mechanism pulley 121 and the second treadle opening / closing mechanism pulley 122 are the same. The second tread plate opening / closing mechanism pulley 122 is arranged on the opposite side to the side where the first tread plate opening / closing mechanism pulley 121 is arranged on the outer side in the width direction of the transporter main body 71.

  The pulley 122 for the second footboard opening / closing mechanism is rotatably supported by a portion that moves up and down integrally with the transporter main body 71 or the transporter 70. The rotation axis of the second tread plate opening / closing mechanism pulley 122 is parallel to the width direction W. In this embodiment, the second tread plate opening / closing mechanism pulley 122 is rotatably supported by the side wall 75a.

  The rotation axes of the treadle opening / closing mechanism pulleys 121 and 122 are aligned in the vertical direction V. The second tread plate opening / closing mechanism pulley 122 is formed with a convex portion or groove into which the tread plate opening / closing mechanism chain 123 can be engaged.

  The treadle opening / closing mechanism chain 123 is turned around the treadle opening / closing mechanism pulleys 121, 122 and is engaged with the treadle opening / closing mechanism pulleys 121, 122. Since the treadle opening / closing mechanism pulleys 121 and 122 are the same and the rotation axes of the treadle opening / closing mechanism pulleys 121 and 122 are aligned in the vertical direction V, the first tread in the treading plate opening / closing mechanism chain 123. A portion between the opening / closing mechanism pulley 121 and the second treadle opening / closing mechanism pulley 122 extends in the vertical direction V in parallel.

  The rear end portion of the tread plate opening / closing mechanism chain 123 across the first tread plate opening / closing mechanism pulley 121 is connected to the end portion of the tread plate 110 via the pulley 112. The end portion referred to here is a tip portion that protrudes to the outside of the transporter main body 71 when the tread plate 110 is in the tread plate open position P7.

  The tread plate opening / closing mechanism chain 123 is not limited to being connected to the above-described end portion. The tread plate opening / closing mechanism chain 123 may be connected to the front portion of the tread plate 110 at the tread plate open position P7 with respect to the rotation axis of the support portion 111. In other words, the tread plate opening / closing mechanism chain 123 may be connected to the tip of the tread plate 110 that protrudes outward when it is in the tread plate open position P7, or a portion between the tip and the rotation shaft.

  Another example of the portion between the tip that protrudes outward when the tread plate 110 is in the tread plate open position P7 and the pivot shaft that is the pivot center may be in the vicinity of the end portion. In addition, by providing the tread plate opening / closing mechanism chain 123 at the end portion, the tread plate 110 can be opened and closed with a relatively small force.

An end portion connected to the tread plate 110 in the tread plate opening / closing mechanism chain 123 is connected to the tread plate 110 so as to be rotatable about an axis in the width direction W. Therefore, when the tread plate 110 rotates between the tread plate closed position P6 and the tread plate open position P7, the end portion connected to the tread plate 110 in the tread plate opening / closing mechanism chain 123 is used to rotate the tread plate 110. At the same time, the tread plate opening / closing mechanism chain 123 is tensioned as will be described later.
Is prevented from bending.

  In the tread plate opening / closing mechanism chain 123, the first tread plate opening / closing mechanism engaging portion 124 is fixed from the rear side of the first tread plate opening / closing mechanism pulley 121 to the end of the front portion. The first tread plate opening / closing mechanism engaging portion 124 applies tension to the tread plate opening / closing mechanism chain 123 so that the tread plate opening / closing mechanism chain 123 is stretched, and the tread plate 110 at the tread plate opening position P7 is used for the tread plate. It has a weight that can be maintained at the tread plate open position P7 without rotating toward the closed position P6.

  The weight of the first tread plate opening / closing mechanism engaging portion 124 will be specifically described. When the tread board 110 is in the tread board opening position P7, the weight of the first tread board opening / closing mechanism engaging portion 124 acts on the tread board 110 via the tread board opening / closing mechanism chain 123. This weight acts on the tread board 110 so as to rotate toward the tread board closed position P6.

  Therefore, the first tread plate opening / closing mechanism engaging portion 124 allows the tread plate 110 in the tread plate open position P7 to be maintained in the tread plate open position P7 so that the tread plate 110 in the tread plate open position P7 can be maintained. The weight is such that it does not rotate toward the closed position P6.

  For example, the second tread plate opening / closing mechanism engaging portion 125 is provided at an end portion in the width direction W of the upper door 91 on the side where the first tread plate opening / closing mechanism pulley 121 is provided. More specifically, the second tread plate opening / closing mechanism engaging portion 125 is provided in the middle part of the upper door 91 in the vertical direction V and protrudes toward the transporter main body 71. The second tread plate opening / closing mechanism engaging portion 125 is formed to be engageable with the first tread plate opening / closing mechanism engaging portion 124.

  Here, the length of the treadle opening / closing mechanism chain 123 will be specifically described. When the upper door 91 is in the upper door closed position P1, the second tread opening / closing mechanism engaging portion 125 is moved downward from the upper side to the first tread opening / closing mechanism engaging portion 124. And the first tread opening / closing mechanism engaging portion 124 is pressed down to hold the tread 110 in the tread closing position P6 via the tread opening / closing mechanism chain 123. .

  As shown in FIGS. 1 to 4, the elevator 10 configured as described above is configured such that the frame 50 is placed on the post 20 and the first horizontal frame 54 in the first mode. And the 2nd cane 55d is connected by the engaging part 53 in the attitude | position located upwards. In the transporter 70, the connected portion 78 is connected to the connecting portion 54 a and the connecting portion 58 a by a pin 79. By connecting the connected portion 78 to the connecting portion 54 a and the connecting portion 58 a, the transporter 70 is suspended from the transporter support frame 52.

  Further, the transporter 70 is fixed to the frame body 51 by the second fixing structure 160. Specifically, as shown in FIG. 2, the bolt 163 is inserted through the first bolt insertion hole 161 a of the transporter 70 and screwed into the nut 162. The transporter 70 is fixed to the frame main body 51 by the second fixing structure 160 while maintaining the state where the connected portion 78 is suspended from the transporter support frame 52 by being connected to the connecting portions 54a and 58a.

  In the first mode, the magnetic switch 130 is fixed to one end 51 d that is the upper end of the frame body 51. Further, the buffer 5 installed at the lower end of the post 20 can come into contact with one end 51 e which is the lower end of the frame body 51. The magnetic switch 130 detects the rack gear 30. The magnetic switch 130 transmits the detection result to a control device that controls the operation of the elevator 10. When the control device determines that the transporter unit 40 has moved to a height position where the rack gear 30 is not formed based on the detection result of the magnetic switch 130, the control device stops driving the drive device 60.

  Next, the transporter unit 40 in the second mode will be described with reference to FIGS. 11 to 14. In the second mode, the frame 50 is connected to the post 20 by the engaging portion 53 in a posture in which the transporter support frame 52 is disposed on the lower end side. The transporter 70 is placed on the surface 52 a of the transporter support frame 52. As described above, in the second mode, the drive unit 60 and the automatic fall prevention device 65 are arranged below the carry unit 70 in the carry unit 40.

  In addition, the transporter 70 is fixed to the transporter support frame 52 by the first fixing structure 150. Specifically, as shown in FIG. 12, the bolt 153 passes through the bolt insertion member 151 and is screwed into the nut 152.

  In the second mode, the magnetic switch 130 is fixed to one end 51 e that is the upper end of the frame body 51. Further, the buffer 5 installed at the lower end of the post 20 can come into contact with one end 51 d which is the lower end of the frame body 51.

  Next, the operation of the transporter unit 40 will be described. First, the raising operation of the transporter unit 40 will be described. After the worker gets into the transporter 70, the controller provided in the transporter 70 is operated to raise the transporter 70. The operation input to the controller is transmitted to the control device.

  When the controller is operated, the electric motor 63 is driven by the control device. The rotation of the output shaft of the electric motor 63 is transmitted to the pinion gear 61 via the speed reducer 64. As the pinion gear 61 rotates, the pinion gear 61 moves upward with respect to the rack gear 30 fixed to the post 20. As a result, the transporter 70 rises.

  Similarly, when the controller is operated to lower the transporter unit 40, the output shaft of the electric motor 63 rotates in reverse to the case where the transporter 70 is lifted. By carrying out reverse rotation with respect to the case where the output shaft of the electric motor 63 is raised, the transporter 70 is lowered.

  Moreover, if the automatic fall prevention apparatus 65 detects that the raising / lowering speed of the carrier unit 40 exceeded predetermined speed, it will raise / lower the carrier unit 40 with a brake.

  In the unlikely event that the transporter unit 40 rises beyond the range in which the rack gear 30 is formed, the frame main body 51 of the frame 50 is moved in both the first mode and the second mode as shown in FIG. By abutting against the elastic body 23b of the high buffer 23, the lift of the transporter unit 40 is stopped.

  In the unlikely event that the electric motor 63 becomes free to rotate and the carrier unit 40 falls, the buffer 5 comes into contact with the lower end of the frame body 51 as shown in FIGS. Stops descending.

  Further, the detection result of the load detection sensor 81 is transmitted to a control device that controls the operation of the elevator 10. Based on the detection result of the load detection sensor 81, the control device does not raise or lower the transporter 70 when the total load of the workers and luggage accommodated in the transporter 70 exceeds the set upper limit value. This upper limit value is a value set for raising and lowering the transporter 70 safely. In this control device, the lamp may be a speaker or the like, and may notify the surroundings that the load of the accommodated worker or baggage has exceeded the upper limit value.

  Next, the opening / closing operation | movement of the door 73 is demonstrated. Note that the control unit that controls the driving of the door opening / closing mechanism electric motor 102 is set so as not to drive the door opening / closing mechanism electric motor 102 when, for example, the transporter 70 is raised and lowered.

  First, from the operation of moving the door 73 from the closed position to the open position, in other words, from the state where the lower door 92 is in the lower door closed position P3 and the upper door 91 is in the upper door closed position P1. The operation when the door 92 is moved to the lower door opening position P4 and the upper door 91 is moved to the upper door opening position P2 will be described.

  When the operator operates the controller to open the door 73, the door opening / closing mechanism electric motor 102 is driven, and the door opening / closing mechanism pulley 101 rotates to move the lower door 92 upward. Then, as the door opening / closing mechanism pulley 101 rotates, the door opening / closing mechanism chain 103 is pulled out rearward, whereby the door opening / closing mechanism chain 103 moves the lower door 92, and the lower door closing position P3 shown in FIG. Lift up from the state of

  When the lower door 92 rises, as shown in FIG. 17, the door opening / closing mechanism engaging portion 105 provided in the lower door 92 is moved from the lower side to the upper side at the lower edge of the upper door 91 at the upper door closed position P1. Abut against.

  In a state where the upper door 91 is in the upper door closed position P1, the second tread plate opening / closing mechanism engaging portion 125 provided on the upper door 91 presses the first tread plate opening / closing mechanism engaging portion 124 from above. Is maintained. For this reason, even if the lower door 92 moves, the tread plate opening / closing mechanism chain 123 is not drawn out along with this movement, so that the tread plate 110 is held at the tread plate closed position P6.

  When the lower door 92 is further raised, the door opening / closing mechanism engaging portion 105 provided on the lower door 92 pushes the upper door 91 upward. For this reason, the upper door 91 rises as the lower door 92 rises.

  When the upper door 91 rises, the second tread plate opening / closing mechanism engaging portion 125 provided on the upper door 91 rises along with the upper door 91. When the second tread plate opening / closing mechanism engaging portion 125 rises, the first tread plate opening / closing mechanism engaging portion 124 also rises, so that the tread plate 110 rotates from the tread plate closed position P6 toward the tread plate open position P7. To start.

  The rotation start of the tread board 110 will be specifically described. In the tread plate closed position P6, the tread plate 110 is transmitted to the tread plate 110 by the tread plate opening / closing mechanism chain 123 and the force acting to rotate toward the tread plate open position P7 by the elastic force of the return spring 112. The force to be held at the use closed position P6 is balanced.

  On the other hand, when the treadle opening / closing mechanism chain 123 is extended backward by the upper door 91 being lifted, the treadboard opening / closing mechanism chain 123 does not have the force to hold the treading board 110 in the treadle closing position P6. Since the tread plate 110 acts only by a force that rotates toward the tread plate opening position P7 by the elastic force (restoring force) of the return spring 112, the tread plate 110 is pushed out toward the tread plate opening position P7 by the inherent restoring force.

  At this time, the tread 110 is caused by its own weight rather than the force acting to rotate the tread 110 toward the tread closed position P6 due to the weight of the first tread opening / closing mechanism engaging portion 124. Since the force acting so as to rotate toward the tread board opening position P7 is larger, the tread board 110 starts to rotate from the tread board closing position P6 toward the tread board opening position P7.

  When the upper door 91 rises to a position between the upper door closed position P1 and the upper door open position P2, the tread board 110 rotates to the tread board open position P7. The tread board 110 is passed from the lower end edge of the opening 72 to the floor where the transporter 70 is stopped in the building under construction.

  When the tread board 110 reaches the tread board opening position P7, the upward movement of the first tread board opening / closing mechanism engaging portion 124 is stopped. Therefore, when the upper door 91 moves further upward, the second tread plate opening / closing mechanism engaging portion 125 is separated from the first tread plate opening / closing mechanism engaging portion 124.

  As shown in FIG. 18, when the lower door 92 is in the lower door open position P4 and the upper door 91 is in the upper door open position P2, that is, when the door 73 is opened to the open position, the door The opening / closing mechanism electric motor 102 is stopped. When the door 73 is opened to the open position in order to maintain the state where the door 73 is in the open position, the rotation of the output shaft of the door opening / closing mechanism electric motor 102 is locked.

  For example, the transporter 70 is provided with a switch that detects a state in which the lower door 92 is in the lower door open position P4. When the switch detects that the lower door 92 is in the lower door opening position P4, the control unit that controls the driving of the door opening / closing mechanism electric motor 102 based on the detection result of the switch performs the door opening / closing mechanism electric motor 102. To stop.

  In this embodiment, when the lower door 92 is in the lower door open position P4, the upper door 91 is also in the upper door open position P2, so the switch detects the state in which the door 73 is in the open position. Therefore, the state where the lower door 92 is in the lower door open position P4 is detected. As another example, the switch may detect a state in which the upper door 91 is in the upper door open position P2. The means for detecting the state where the door 73 is in the open position is not limited to the above switch.

  When the lower door 92 rises to the lower door opening position P4 and the upper door 91 rises to the upper door opening position P2, it becomes possible to load and unload luggage and workers on the carrier 70.

  At this time, since the tread board 110 is in the tread board opening position P7, the tread board 110 fills the gap S between the lower end edge of the opening 72 of the transporter body 71 and the floor on which the transporter body 71 is landed. For this reason, it is possible to efficiently carry in or carry out the luggage.

  Next, the operation of moving the door 73 from the open position to the closed position will be described. As shown in FIGS. 17 and 18, the opening 72 is in the open position, that is, the upper door 91 is in the upper door open position P2, and the lower door 92 is in the lower door open position P4. The operator operates the controller to close the door 73.

  Then, the door opening / closing mechanism electric motor 102 rotates in the opposite direction to the rotation direction when the door 73 is opened, and the door opening / closing mechanism pulley 101 is also opposite in the rotation direction when the door 73 is opened. Rotate.

  When the door opening / closing mechanism pulley 101 rotates in a direction to close the door 73, the operation opposite to the operation when the door 73 is opened is performed, and the door 73 is closed.

For example, the transporter 70 is provided with a switch for detecting the position of the lower door 92. When the switch detects that the lower door 92 is in the lower door closed position P3, the switch 70 detects the position of the lower door 92 based on the detection result of the switch. The control unit that controls the driving of the door opening / closing mechanism electric motor 102 stops the driving of the door opening / closing mechanism electric motor 102.

  Note that the switch detects a state in which the lower door 92 is in the lower door closed position P3 as a state in which the door 73 is in the closed position. The means for detecting the state in which the lower door 92 is in the lower door closed position P3 is not limited to the above switch.

  In the state where the door 73 is in the closed position, the rotation of the output shaft of the door opening / closing mechanism electric motor 102 is locked so that the door 73 does not open unexpectedly without being operated to open the door 73. .

  In the elevator 10 configured as described above, the transporter support frame 52 is disposed above the transporter 70, and the transporter 70 is suspended from the transporter support frame 52 by the connected portion 78 and the connecting portion 54a. The first mode and the second mode in which the transporter support frame 52 is disposed below the transporter 70 and the transporter 70 is placed on the surface 52a of the transporter support frame 52 are used in both modes. It becomes possible.

  In the first mode, since the driving device 60 and the automatic fall prevention device 65 are arranged above the transporter 70, the transporter 70 can be lowered to a position close to the ground. For this reason, by using the elevator 10 outdoors in the first mode, it is not necessary to create a stage or a slope for getting on and off workers and materials on the carrier 70. It becomes possible to improve the efficiency of boarding / alighting work.

  In the second mode, since the driving device 60 and the automatic fall prevention device 65 are disposed below the carrier 70, the driving device 60 and the automatic fall prevention device can be used even when the carrier 70 is landed on the top floor of the building. 65 does not interfere with the ceiling of the building. For this reason, by using the elevator 10 indoors in the second mode, it is possible to perform the work of forming the ceiling wall of the building even when the elevator 10 is installed. For this reason, the construction period can be prevented from being prolonged.

  Thus, since the elevator 10 can be used in the first mode suitable for the outdoor and the second mode suitable for the indoor, it becomes possible to improve the operating rate of the elevator 10. There is no need to increase the number of elevators 10 owned. For this reason, the cost concerning capital investment can be reduced.

  That is, if you own an elevator that can be used only in the first mode and an elevator that can be used only in the second mode, if you do not have multiple kitchens for each of the elevators, you can support building construction. Since this is not possible, the cost for capital investment increases. This is because the number of elevators used outdoors and the number of elevators used indoors differ depending on the building.

  Furthermore, by arranging the connecting portion 54 a of the transporter support frame 52 within the thickness in the vertical direction V of the first horizontal frame 54, the connecting portion 54 a does not protrude in the vertical direction with respect to the first horizontal frame 54. . In other words, the connecting portion 54a does not protrude from the surface 52a. Similarly, the connecting portion 58a formed on the first beam member 55a is disposed within the thickness in the vertical direction V of the first beam member 55a, and the connecting portion 58a formed on the second beam member 55b is By disposing the second beam member 55b within the thickness in the vertical direction V, the connecting portion 58a does not protrude from the surface 52a. For this reason, it becomes easy to place the transporter 70 on the surface 52a.

  Furthermore, by making the surface 52a a plane orthogonal to the vertical direction V, the carrier 70 can be easily placed on the surface 52a.

  Furthermore, in the first mode, by arranging one end 57 serving as the lower end of the frame body 51 at a position higher than the lower surface 70a of the transporter 70, while ensuring a sufficient length in the vertical direction of the buffer 5, It becomes possible to land the carrying device 70 at a position closer to the ground.

  In other words, in the state where the transporter unit 40 is used in the first mode, the storage space S1 in which a part of the buffer 5 can be disposed between the lower surface 70a of the transporter 70 and the one end 57 which is the lower end of the frame body 51. Is provided. This storage space S1 makes it possible to land the transporter 70 at a position closer to the ground.

  Furthermore, by arranging the load detection sensor 81 within the thickness of the bottom wall portion 74 in the vertical direction V, the thickness of the integrated object including the bottom wall portion 74 and the load detection sensor 81 can be reduced. For this reason, it becomes possible to land the transporter 70 at a position closer to the ground.

  Furthermore, since the post 20 can be shortened by providing the high buffer 23 (see FIG. 14) at the upper end portion of the post 20, it is possible to prevent the post 20 and the ceiling wall of the building from interfering with each other. This effect will be specifically described.

  The post 20 may not be provided with the rack gear 30 at the upper end portion of the post 20 from the viewpoint of safety of the elevator 10. By not providing the rack gear 30 at the upper end portion of the post 20, the engagement between the pinion gear 61 and the rack gear 30 is released even when the transporter unit 40 moves up to the upper end portion of the post 20. Stopped.

  However, by providing a portion where the rack gear 30 is not provided in this way, the length of the post 20 is increased, and thus the post 20 may interfere with the ceiling wall of the building. Or, the post 20 may not allow the ceiling wall to be formed.

However, in the present embodiment, by installing the high buffer 23 at the upper end of the post 20, it is not necessary to secure a wide area where the rack gear 30 is not formed at the upper end of the post 20, thereby preventing the post 20 from being elongated. it can. For this reason, it is possible to prevent the occurrence of interference between the post 20 and the ceiling wall of the building or the fact that the post 20 cannot form the ceiling wall of the building.
In addition, in a state where the transporter unit 40 is used in the second mode, one end 57 serving as the upper end of the frame main body 51 is located at a position lower than the upper surface 77a of the ceiling wall portion 77 of the transporter 70. For this reason, a part of the magnetic switch 130 can be disposed at a position lower than the upper surface 77a, so that the height position of the upper end of the magnetic switch 130 relative to the upper surface 77a can be lowered.

  In other words, in a state where the transporter unit 40 is used in the second mode, a storage space S2 in which a part of the magnetic switch 130 can be disposed is provided between the one end 57 serving as the upper end of the frame body 51 and the upper surface 77a. It is done. With this storage space S2, the transporter 70 can be raised to a position closer to the ceiling of the building.

  Furthermore, the door 73 is configured to open upward so that the door 73 does not interfere with the ground or the like even when used in the first mode.

  Furthermore, the door 73 is divided into an upper door 91 and a lower door 92, and the upper door 91 and the lower door 92 are an example of a direction intersecting with the moving direction of the upper door 91 and the lower door 92. Since the upper door 91 and the lower door 92 at the open positions P2 and P4 can be stacked in the front-rear direction F by being spaced apart in the front-rear direction F, the protrusion of the door 73 protruding upward from the transporter main body 71 is possible. The amount can be reduced.

  Further, the tread board opening / closing mechanism 120 can automatically perform the opening / closing operation of the tread board 110 in conjunction with the opening / closing operation of the door 73.

  In the present embodiment, the bottom plate 84 of the bottom wall portion 74 is disposed on the load detection sensor 81 via the beam 85 and the contact portion 86. Thus, the bottom plate 84 may be disposed on the load detection sensor 81 indirectly through another member. Alternatively, the bottom plate 84 may be directly disposed on the load detection sensor 81.

  In addition, this invention is not limited to the said embodiment, In the implementation stage, it can change variously in the range which does not deviate from the summary. Further, the embodiments may be implemented in combination as appropriate, and in that case, the combined effect can be obtained. Furthermore, the present invention includes various inventions, and various inventions can be extracted by combinations selected from a plurality of disclosed constituent elements. For example, even if several constituent requirements are deleted from all the constituent requirements shown in the embodiment, if the problem can be solved and an effect can be obtained, the configuration from which the constituent requirements are deleted can be extracted as an invention.

  DESCRIPTION OF SYMBOLS 10 ... Elevator, 20 ... Post, 21 ... Guide part, 23 ... High buffer, 30 ... Rack gear, 40 ... Carryer unit, 50 ... Frame, 51 ... Frame main body, 52 ... Carryer support frame, 52a ... Surface, 53 ... Engagement 54, first horizontal frame, 54a, connecting portion, 55c, first wand, 55d, second wand, 56, suspension piece member, 58, second horizontal frame, 59, suspension piece member , 60 ... Drive device, 61 ... Pinion gear, 63 ... Electric motor, 64 ... Speed reducer, 65 ... Automatic fall prevention device, 70 ... Carrier, 71 ... Carrier body, 72 ... Opening, 73 ... Door, 74 ... Bottom wall, 77: Ceiling wall part, 77a ... Upper surface, 78 ... Connected part, 80 ... Bottom wall part body, 81 ... Load detection sensor, 82 ... Frame for bottom wall part, 91 ... Upper door, 92 ... Lower door, 130 ... Magnetic switch.

Claims (6)

A transporter provided with a connected portion on the upper surface;
A frame main body provided with an engaging portion that is movably engaged with the post, a connecting portion that is detachably connected to the connected portion, and a surface on which the lower surface of the transporter can be placed. A frame having a transporter support frame having;
A driving device disposed on the opposite side of the surface of the transporter support frame and fixed to the frame, comprising: a pinion gear that engages with a rack gear provided on the post; and an electric motor that drives the pinion gear. A driving device;
A transporter unit equipped with The transporter includes a bottom wall portion that forms a mounting surface on which a storage object stored in the transporter is mounted.
The bottom wall portion is a frame-shaped bottom wall portion frame, a beam provided in the bottom wall portion frame and having an upper surface disposed at a position lower than the upper surface of the bottom wall portion frame, and the beam The transporter unit according to claim 1, further comprising: a load detection sensor installed on the top; and a bottom plate disposed on the load detection sensor. The transporter comprises a transporter body having an opening, and a door for opening and closing the opening,
The transporter unit according to claim 1, wherein the door opens the opening by moving upward from a position where the opening is closed. The door includes an upper door that opens and closes an upper portion of the opening, and a lower door that opens and closes a lower portion of the opening,
The transporter unit according to claim 3, wherein the upper door and the lower door are arranged to be shifted in a direction orthogonal to the vertical direction. Post and
A rack gear provided on the post;
A transporter provided with a connected portion on the upper surface;
A frame body provided with an engaging portion that is movably engaged with the post, and a connection surface that is detachably connected to the connected portion, and on which the lower surface of the carrier can be placed A frame comprising a carrier support frame having
A drive device disposed on the opposite side of the surface of the transporter support frame and fixed to the frame, the drive device including a pinion gear that engages with the rack gear, and an electric motor that drives the pinion gear;
Elevator equipped with. A buffer installed on the ground and facing the lower end of the frame body in the vertical direction in the vertical direction;
A magnetic sensor installed at the upper end of the frame body for detecting the rack gear;
Comprising
In the first mode in which the connected portion of the transporter is connected to the connecting portion of the transporter support frame, the lower end of the frame body is located above the lower surface of the transporter,
The elevator according to claim 5, wherein, in the second mode in which the transporter is placed on the surface of the transporter support frame, an upper end of the frame body is located below the upper surface of the transporter.