JP2017160008A - Construction elevator - Google Patents

Abstract

PROBLEM TO BE SOLVED: To suppress labor and cost necessary for installing a construction elevator.SOLUTION: A construction elevator provided at a plurality of floors of a currently built structure is provided with: a columnar support that vertically extends; a carrier that is liftable on a hoistway along the columnar support and that has a housing space therein and an entrance formed on a side surface surrounding the housing space; a lifting driving device that lifts the carrier; an inner door that opens/closes the entrance and that is provided to the carrier; a motor that drives the inner door to open/close and that is provided to the carrier; an outer door mechanism that includes an outer door for opening/closing an opening connected to the hoistway and that is provided at each of the floors; and a movable engaging device that is attached to the inner door and that includes a movable member movable to a first position overlapping at least a part of the outer door mechanism when seen in the direction of opening/closing the outer door and a second position not overlapping the outer door mechanism when seen in the opening/closing direction and configured to open the outer door by being engaged with at least a part of the outer door mechanism accompanying the opening operation of the inner door in the state of being at the first position.SELECTED DRAWING: Figure 1

Description

  The technology disclosed in the present specification relates to a construction elevator.

  At construction sites where structures such as buildings and civil engineering structures are constructed, construction elevators that transport materials and personnel to each of a plurality of work floors of the structure are used. The construction elevator includes a transporter capable of moving up and down the hoistway and an inner door provided in the transporter. The inner door is a door that opens and closes the entrance / exit on the side surface of the transporter, and is opened and closed by an electric motor provided in the transporter. Moreover, in each of a some work floor, the outer door which opens and closes the opening part which leads to the hoistway of a carrier is provided for safety.

  2. Description of the Related Art Conventionally, in order to reduce labor required for opening and closing an outer door, a technique is known in which an electric motor for an outer door is provided on each work floor of a structure and the outer door is opened and closed by the electric motor (for example, Patent Document 1). reference).

Japanese Utility Model Publication No. 3-49279

  In the above prior art, since it is necessary to provide an electric motor for the outer door on each work floor of the structure, there is a problem that labor and cost are required for installing the construction elevator.

  The present specification discloses a technique capable of solving at least a part of the problems described above.

(1) A construction elevator disclosed in this specification is a construction elevator provided over a plurality of floors of a structure under construction, and includes a vertically extending column and a hoistway along the column. It is possible to move up and down, a storage space is formed on the inside, a transporter having a doorway formed on a side surface that surrounds the storage space, a lift drive device that lifts and lowers the transporter, and the transporter is provided to open and close the doorway An inner door, an electric motor that is provided in the transporter and drives to open and close the inner door, an outer door mechanism that is provided on each of the plurality of floors and includes an outer door that opens and closes an opening that leads to the hoistway, Attached to the inner door and moved to a first position that overlaps at least a part of the outer door mechanism in the opening / closing direction when the outer door is opened and closed, and a second position that does not overlap the outer door mechanism in the opening / closing direction Is possible and in the first position In the state of location, and a movable engagement device including a movable member for door opening with the outer door engages at least a portion of the outer door mechanism with the opening operation of the inside door. According to the elevator for construction work, the movable engagement device including the movable member movable to the first position and the second position is attached to the inner door, and the outer door is moved in accordance with the opening operation of the inner door. The door is opened by engaging with a movable member located at position 1. For this reason, it is not necessary to manually open and close the outer door, and it is not necessary to provide an electric motor for opening and closing the outer door on each of the multiple floors of the structure. Costs can be reduced.

(2) In the construction elevator, the inner door and the outer door may be vertically open doors. According to the elevator for construction work, when the outer door is lowered, the outer door can be lowered using the weight of the outer door. Therefore, it is not necessary to engage the outer door with the movable member in any one of the opening operation and the closing operation of the outer door corresponding to the lowering of the outer door. In any case, the configuration of the movable engagement device can be simplified as compared with the lateral opening type in which it is necessary to engage the outer door and the movable member.

(3) In the construction elevator, the movable engagement device may further include an electric drive unit that electrically moves the movable member to the first position and the second position. According to the present construction elevator, the movable engagement device moves the movable member electrically, so that it is possible to suppress labor required for the operation of the construction elevator as compared with the case where the movable member is manually moved.

(4) In the construction elevator, the electric drive unit may be configured to move the movable member to the first position and the second position by translating the movable member. According to the elevator for construction work, the movable member can be supported at portions other than the rotation center portion, and the support strength of the movable member can be increased as compared with the case of rotating the movable member. Moreover, since the moving operation performed by the electric drive unit is a simple operation of moving the movable member in parallel, the operation reliability is higher than that of the rotational movement operation.

(5) In the construction elevator, the electric drive unit may be configured to move the movable member to the first position and the second position by rotating the movable member. According to the elevator for this construction, the driving force required for the electric drive unit to move the movable member can be reduced as compared with the case where the movable member is moved in parallel, and the configuration of the electric drive unit is simplified. be able to.

(6) In the construction elevator, the inner door and the outer door are doors that are opened by ascending, the movable engagement device is disposed near a lower end of the inner door, and the movable member is It is good also as a structure which can be engaged with the engaging part provided in the lower end vicinity of the said outer door. According to the elevator for the present construction, the movable member included in the movable engagement device arranged near the lower end of the inner door is engaged with the engaging portion provided near the lower end of the outer door, and the outside is The door and the movable member can be engaged.

(7) In the construction elevator, the inner door includes a first inner door and a second inner door disposed below the first inner door, and the first inner door rises. The second inner door is a door that opens when lowered, and the electric motor simultaneously opens the first inner door and the second inner door, and the movable engagement device Is arranged near the lower end of the first inner door, and the outer door mechanism further connects an engaging member engageable with the movable member, the outer door and the engaging member, It is good also as a structure including the connection mechanism which opens the said outer door at a speed | rate larger than the speed of the said engaging member which engages with the said movable member and raises with the opening operation of 1 inner door. According to the elevator for this construction, the inner door includes the first inner door and the second inner door, and the first inner door is opened simultaneously in the direction in which the first inner door and the second inner door are separated from each other. Compared with the case where the second inner door is opened sequentially, the time required for opening the inner door can be shortened. Also, since the outer door is opened at a speed greater than the speed of the first inner door, it is necessary to open the outer door as compared with the case where the outer door is opened at a speed lower than that of the first inner door. Time can be shortened. Thereby, the time required to open the inner door and the outer door can be shortened.

(8) In the construction elevator, the entrance may be configured to be horizontally long. According to the elevator for this construction, the inner and outer doors are vertically open, so the doorway is horizontally long, so that the doors can be opened and closed compared to when the doorway is vertically long. It is possible to reduce the time required for

Explanatory drawing which shows schematically a part of structure of the building 1 by which the elevator 10 for construction in 1st Embodiment was arrange | positioned. Schematic front view of construction elevator 10 Schematic side view showing the configuration of the outer door mechanism 400 and the movable engagement device 500 of the construction elevator 10 Block diagram showing the electrical configuration of the construction elevator 10 Schematic for explaining opening operation of outer door 410 Schematic for explaining opening operation of outer door 410 Flow chart showing the door opening process Flow chart showing closing process Schematic front view of a construction elevator 10A according to a second embodiment Schematic side view showing the configuration of the outer door mechanism 400A of the construction elevator 10A and the movable engagement device 500 Schematic for explaining opening operation of outer door 410 Schematic top view of a movable engagement device 500A in a modification

A. First embodiment:
A-1. Construction of construction elevator 10:
Drawing 1 is an explanatory view showing roughly a part of composition of building 1 by which construction elevator 10 in a 1st embodiment is arranged. The building 1 is a multi-storey building under construction. The building 1 is provided with a construction elevator 10 extending over a plurality of floors. FIG. 1 shows XYZ axes orthogonal to each other for specifying the direction. In this specification, for convenience, the X-axis positive direction is referred to as the right direction, the X-axis negative direction is referred to as the left direction, the Y-axis positive direction is referred to as the front direction, the Y-axis negative direction is referred to as the rear direction, and Z The positive axis direction is referred to as the upward direction, and the negative Z axis direction is referred to as the downward direction. The same applies to FIG.

  FIG. 2 is a schematic front view of the construction elevator 10 according to the first embodiment. As shown in FIGS. 1 and 2, the construction elevator 10 includes a column 100, a transporter 210, an electric motor 230, a governor 245, an inner door 300, an electric motor 235, an outer door mechanism 400, and a pair of movable members. And a combined device 500. The support column 100 is provided in a hoistway 40 that communicates with an opening 30 provided in the floor slab 20 of each floor of the building 1 and extends in the vertical direction. The transporter 210 is a box disposed in the hoistway 40, and an accommodation space 212 for accommodating materials and personnel is formed inside. A part of the side surface 216 surrounding the accommodation space 212 of the transporter 210 is formed with an entrance / exit 214 for getting materials and personnel into and out of the accommodation space 212. The entrance / exit 214 is a horizontally long opening. The electric motor 230 is provided in the transporter 210 and moves the transporter 210 that can move up and down the hoistway 40 along the support column 100. The governor 245 is an emergency brake that is provided in the transporter 210 and stops the lifting movement of the hoistway 40. The electric motor 230 is an example of an elevating drive device.

  The inner door 300 is provided near the entrance / exit 214 of the transporter 210 and opens / closes the entrance / exit 214 of the transporter 210. The inner door 300 is a vertically open single door that opens when it is raised and closes when it is lowered. 1 and 2 show a state where the inner door 300 is fully opened. The electric motor 235 is provided in the transporter 210 and drives the inner door 300 to open and close by driving the inner door 300 up and down along the rail portion 302 provided in the transporter 210.

  The outer door mechanism 400 is provided on the floor slab 20 of each floor of the building 1, and in detail, is provided near the opening 50 that leads to the hoistway 40 of the transporter 210. The outer door mechanism 400 includes an outer door 410, a pair of outer door columns 420, and a pair of engaging members 440. The pair of outer door columns 420 are disposed at both ends of the opening 50 in the left-right direction (X-axis direction), and support the outer door 410. The outer door 410 is provided between the pair of outer door columns 420 and opens and closes the opening 50. 1 and 2 show a state in which the outer door 410 is fully opened.

  FIG. 3 is a schematic side view showing the configuration of the outer door mechanism 400 and the movable engagement device 500 of the construction elevator 10. FIG. 3 shows a state in which the inner door 300 and the outer door 410 are fully closed. As shown in FIG. 3, the outer door 410 is a vertically open blind curtain door, and an even number of door bodies 412 extending in the horizontal direction are connected in a vertical direction by connecting members such as hinges. . The upper end portion 414A of the door body 412A arranged on the uppermost side of the outer door 410 is supported by the outer door column 420 so as not to move and to swing. The connecting member 414B between the even-numbered door body 412B from the upper side and the odd-numbered door body 412C from the upper side can move only in the vertical direction along the rail portion 422 provided on the outer door support column 420. It is supported by. Further, the connecting member 414C between the odd-numbered door bodies 412C from the upper side and the even-numbered door bodies 412B from the upper side is the rear side (Y-axis negative direction) with respect to the rail portion 422 provided on the outer door column 420. It is restricted so that it can only move.

  As for the outer door 410, when the door body 412D arranged on the lowermost side rises, all the door bodies 412 are configured so that one of the adjacent door bodies 412B and 412C rotates in the opposite direction with respect to the other. It is folded and opened (see FIG. 6). Further, the door 412D arranged at the lowermost side of the outer door 410 is lowered so that all the doors 412 are arranged in a substantially straight line in the vertical direction and are closed (see FIG. 3).

  The pair of engaging members 440 are attached in the vicinity of the lower end portion of the outer door 410, and specifically, are attached to the lower end portion 414D of the door body 412D arranged at the lowermost side so as to be swingable. The pair of engaging members 440 are attached to the front side of the outer door 410, that is, the inner door 300 side. The engaging member 440 is an example of an engaging portion.

  The pair of movable engagement devices 500 are attached in the vicinity of the lower ends of both end surfaces of the inner door 300 in the left-right direction (X-axis direction). Each movable engagement device 500 includes a movable member 510 and an electric drive unit 520. The movable member 510 is a metal rod. The electric drive unit 520 supports the movable member 510 and moves the movable member 510 between the protruding position and the accommodation position by moving the movable member 510 straight forward in the front-rear direction (Y-axis direction). FIG. 3 shows a state where the movable member 510 is located at the accommodation position. The protruding position is an example of a first position, and the accommodation position is an example of a second position.

  As shown in FIG. 2, the construction elevator 10 further includes a lock device 600, a landing sensor 610, and a limit sensor 620. The locking device 600 is disposed in the vicinity of the lower end of the rail portion 422 in one outer door column 420. The locking device 600 protrudes toward the closed outer door 410 according to a command from the controller 700 described later, and is in a locked state in which the outer door 410 is fixed, and is accommodated in the outer door support column 420, and does not fix the outer door 410. Switch to unlocked state.

  The landing sensor 610 is disposed on the front side (Y-axis positive direction) of the outer door 410 at a position facing the closed inner door 300. The landing sensor 610 outputs different landing signals ST when the carrier 210 is landing on the corresponding floor of the building 1 and when it is not landing. The controller 700 can determine from the landing signal ST whether or not the transporter 210 has landed.

  The limit sensor 620 is disposed in the vicinity of the lower end of one of the outer door columns 420, and is specifically disposed below the engagement member 440 attached to the outer door 410. The limit sensor 620 outputs a closing signal SH that differs depending on whether or not the engaging member 440 is present at a position where the engaging member 440 is present when the outer door 410 is in a closed state. The controller 700 can determine whether or not the outer door 410 is in a closed state from the door closing signal SH.

  FIG. 4 is a block diagram showing an electrical configuration of the construction elevator 10. The construction elevator 10 includes a controller 700 and an operation unit 750 in addition to the above-described electric motor 230, electric motor 235, movable engagement device 500, and the like.

  The controller 700 includes a CPU 701, a storage unit 702, and an input / output unit 703. The storage unit 702 stores a control program and various setting information for controlling the construction elevator 10. The CPU 701 controls each component of the construction elevator 10 according to a control program read from the storage unit 702 and signals sent from various sensors. The input / output unit 703 receives signals input from the lock device 600, the landing sensor 610, the limit sensor 620, and the like, and transmits a signal to the lock device 600. The operation unit 750 includes various buttons and the like that accept user operations.

A-2. Mechanism of opening / closing operation of the outer door 410:
The outer door 410 is opened and closed using the engagement between the movable member 510 and the engaging member 440. As shown in FIG. 3, when the movable member 510 is located at the accommodation position, the movable member 510 is accommodated in the electric drive unit 520. Further, the movable member 510 does not overlap with the engaging member 440 when viewed in the vertical direction. Therefore, even when the inner member 300 is opened when the movable member 510 is located at the storage position, the movable member 510 and the engaging member 440 are not engaged, and the outer door 410 is not opened / closed. The vertical view is an example of the open / close direction.

  5 and 6 are schematic diagrams for explaining the opening operation of the outer door 410. FIG. 5 shows a state where the movable member 510 is located at the protruding position. As shown in FIG. 5, when the movable member 510 is located at the protruding position, the rear end of the movable member 510 protrudes from the electric drive unit 520, and the movable member 510 overlaps with the engaging member 440 in the vertical direction. Specifically, a part of the movable member 510 at the protruding position is located below the engaging member 440. Therefore, when the inner door 300 is opened when the movable member 510 is located at the protruding position, the movable member 510 and the engaging member 440 are engaged.

  Therefore, when the inner door 300 is opened when the movable member 510 is located at the protruding position, the engaging member 440 that engages with the movable member 510 is lifted to open the outer door 410 (see FIG. 6). Further, when the inner door 300 is closed when the movable member 510 is located at the protruding position, the outer door 410 is lowered by its own weight due to the lowering of the movable member 510, and the outer door 410 is closed.

  Note that when the movable member 510 is located at the storage position, the movable member 510 and the engaging member 440 are not engaged. Therefore, when the movable member 510 is located at the storage position, the carrier 210 is moved up and down, so that interference between the movable member 510 and the engaging member 440 when the carrier 210 is lifted is suppressed.

A-3. Opening and closing processing of the inner door 300 and the outer door 410:
Next, the door opening process between the inner door 300 and the outer door 410 by the controller 700 will be described. FIG. 7 is a flowchart showing the door opening process, and FIG. 8 is a flowchart showing the door closing process. When an instruction for landing on the first designated floor of the transporter 210 is input by a user operation via the operation unit 750, the controller 700 causes the motor 230 to move up and down the transporter 210 to the first designated floor. The door opening process shown in FIG.

  As shown in FIG. 7, when starting the door opening process, the controller 700 uses the landing sensor 610 to determine whether the transporter 210 has landed on the first designated floor (S110). When the controller 700 determines that the transporter 210 has not landed on the first designated floor (S110: NO), the process of S110 is repeated.

  When the controller 700 determines that the transporter 210 has landed on the first designated floor (S110: YES), the outer door 410 is removed from the locked state by accommodating the lock device 600 in the outer door support column 420. Switch to the locked state (S120). Next, the controller 700 moves the movable member 510 from the storage position to the protruding position using the electric drive unit 520 (S130). After moving the movable member 510 to the protruding position, the controller 700 causes the electric motor 235 to drive up the inner door 300 (S140). Thereby, the engaging member 440 is lifted by the movable member 510 at the protruding position that rises in conjunction with the inner door 300, and the inner door 300 and the outer door 410 are simultaneously opened. Thus, the door opening process ends.

  After the opening process, the controller 700, as shown in FIG. 8, when an instruction to land on a second designated floor different from the first designated floor of the transporter 210 is input by a user operation via the operation unit 750, for example. Start the closing process.

  As shown in FIG. 8, when the controller 700 starts the door closing process, the controller 700 causes the electric motor 235 to drive the inner door 300 downward (S210). As a result, the movable member 510 at the first position descends in conjunction with the inner door 300, whereby the outer door 410 descends due to its own weight, and the inner door 300 and the outer door 410 are simultaneously closed.

  The controller 700 determines whether or not the inner door 300 and the outer door 410 are closed using the limit sensor 620 (S220). When the controller 700 determines that the inner door 300 and the outer door 410 are not closed (S220: NO), the process of S220 is repeated. When the controller 700 determines that the inner door 300 and the outer door 410 are closed (S220: YES), the controller 700 causes the locking device 600 to protrude toward the closed outer door 410, thereby making the outer door 410 non- Switching from the locked state to the locked state (S230). After the outer door 410 is switched to the locked state, the controller 700 moves the movable member 510 from the protruding position to the accommodation position using the electric drive unit 520 (S240), and ends the door closing process. After completion of the door closing process, the controller 700 causes the electric motor 230 to raise and lower the transporter 210 to the second designated floor.

  As described above, in the construction elevator 10 according to the first embodiment, the movable engagement device 500 including the movable member 510 that can move between the protruding position and the accommodation position is attached to the inner door 300, and the outer door 410. With the opening operation of the inner door 300, the door is opened by engaging with the movable member 510 located at the first position. Therefore, it is not necessary to manually open and close the outer door 410, and it is not necessary to provide an electric motor for the outer door 410 for opening and closing the outer door 410 on each of the plurality of floors of the building 1, so that the construction elevator 10 is installed. Can reduce the labor and cost required.

  Further, in the construction elevator 10 according to the first embodiment, the inner door 300 and the outer door 410 are vertically open doors. Therefore, when the outer door 410 is closed with the closing operation of the inner door 300, the outer door 410 is closed. The outer door 410 can be closed using the dead weight of the door 410. Therefore, when the outer door 410 is closed, there is no need to engage the outer door 410 and the movable member 510, and no power is required to close the outer door 410. In any of the above, it is necessary to engage the outer door and the movable member, and the configuration of the movable engagement device 500 is simpler than the laterally-open type that requires power for opening and closing the outer door 410. Can be

  In the construction elevator 10 according to the first embodiment, the inner door 300 and the outer door 410 are vertically open doors, and the entrance / exit 214 of the transporter 210 is horizontally long. Therefore, the entrance / exit 214 is vertically long. Compared to a certain case, the time required to open and close the inner door 300 and the time required to open and close the outer door 410 opened and closed together with the inner door 300 can be shortened.

  Further, in the construction elevator 10 according to the first embodiment, the outer door 410 is a blind curtain type door, and a plurality of door bodies 412 are connected in a vertical direction by connecting members. Therefore, compared with a slide type door in which a plurality of door bodies are connected by mechanical contacts, there are few mechanical sliding portions and operation reliability is high.

  Further, in the construction elevator 10 according to the first embodiment, since the electric drive unit 520 moves the movable member 510 electrically, it is necessary for the operation of the construction elevator 10 as compared with the case where the movable member 510 is moved manually. Labor can be reduced.

  Further, in the construction elevator 10 according to the first embodiment, the electric drive unit 520 moves the movable member 510 straightly to move between the protruding position and the accommodation position. Therefore, compared with the case where the movable member 510 is rotated, the electric drive unit 520 can support the movable member 510 at a portion other than the center of rotation, and the support strength of the movable member 510 can be increased. Further, the straight drive performed by the electric drive unit 520 is simple drive that moves the movable member 510 back and forth, and therefore has higher operation reliability than the rotary drive that rotates the movable member 510.

  Further, in the construction elevator 10 according to the first embodiment, the inner door 300 and the outer door 410 are opened when they are lifted, and the movable engagement device 500 is disposed near the lower end of the inner door 300. An engaging member 440 that engages 500 movable members 510 is provided near the lower end of the outer door 410. Therefore, the outer door has a simple configuration in which the movable member 510 included in the movable engagement device 500 disposed near the lower end of the inner door 300 is engaged with the engagement member 440 provided near the lower end of the outer door 410. 410 and the movable member 510 can be engaged with each other.

B. Second embodiment:
B-1. Construction of construction elevator 10:
FIG. 9 is a schematic front view of a construction elevator 10A according to the second embodiment. Below, about the structure same as the structure of the construction elevator 10 in 1st Embodiment mentioned above among the structures of the construction elevator 10A in 2nd Embodiment, the description is abbreviate | omitted suitably by attaching | subjecting the same code | symbol. .

  In the construction elevator 10A according to the second embodiment, the inner door 300 includes a first inner door 300A and a second inner door 300B which are divided in the vertical direction. The first inner door 300A and the second inner door 300B have substantially the same shape. The height of the first inner door 300 </ b> A and the height of the second inner door 300 </ b> B are substantially half the height of the outer door 410. The first inner door 300A opens when it rises and closes when it descends. The second inner door 300B is disposed below the first inner door 300A, opens when it is lowered, and closes when it is raised. The electric motor 235 drives the first inner door 300A and the second inner door 300B to move up and down simultaneously. Specifically, the electric motor 235 transmits driving force to the first inner door 300A via a gear (not shown) to drive the first inner door 300A up and down, and to the second inner door 300B via a chain. The driving force is transmitted to drive the second inner door 300B up and down. FIG. 9 shows the first inner door 300A, the second inner door 300B, and the outer door 410.

  FIG. 10 is a schematic side view showing the configuration of the outer door mechanism 400A and the movable engagement device 500 of the construction elevator 10A. 10 shows a state where the first inner door 300A, the second inner door 300B, and the outer door 410 are fully opened. As shown in FIG. 10, the movable engagement device 500 is attached in the vicinity of the lower ends of both end surfaces in the left-right direction (X-axis direction) of the first inner door 300 </ b> A. The engaging member 440A is disposed on the front side of the outer door 410, that is, on the inner door 300 side, and is supported so as to be movable only in the vertical direction along the rail portion 424 provided on the outer door support column 420. Yes.

  The outer door mechanism 400A further includes a connecting mechanism 450. The coupling mechanism 450 includes a shaft body 452, a pair of first upper pulleys 454, a pair of first cables 456, a pair of lower pulleys 458, a pair of second upper pulleys 460, and a pair of second cables 462. Including. The shaft body 452 is a columnar member, and is spanned between the pair of outer door columns 420 so that the axial direction is the left-right direction (X-axis direction). The shaft body 452 is disposed above the upper end portion 414A of the door body 412A disposed on the uppermost side of the outer door 410 in each outer door support column 420.

  Each of the pair of first upper pulleys 454, the pair of first cables 456, the pair of lower pulleys 458, the pair of second upper pulleys 460, and the pair of second cables 462 is one outer It arrange | positions in the support | pillar 420 for doors, and each other is arrange | positioned in the support | pillar 420 for other outside doors. The first upper pulley 454 is a cylindrical member, and is provided to be rotatable about a shaft body 452. The first cable 456 is a metallic wire, one end is wound around the first upper pulley 454, and the other end is fixed to the engaging member 440A. The lower pulley 458 is a columnar member, and is disposed in the vicinity of the lower end of the outer door support column 420 so that the axial direction is the left-right direction (X-axis direction). The lower pulley 458 engages with the first cable 456 and changes the direction in which the first cable 456 extends. Specifically, the first cable 456 descends from the first upper pulley 454 toward the lower pulley 458 and ascends from the lower pulley 458 toward the engagement member 440A.

  The second upper pulley 460 is a cylindrical member, and is provided to be rotatable about a shaft body 452. The second upper pulley 460 is fixed to the first upper pulley 454, and the first upper pulley 454 and the second upper pulley 460 rotate integrally around the shaft body 452. The outer diameter of the second upper pulley 460 is approximately twice the outer diameter of the first upper pulley 454. The second cable 462 is a metallic wire, one end is wound around the second upper pulley 460, and the other end is fixed to the lower end portion 414 </ b> D of the door body 412 </ b> D disposed on the lowermost side of the outer door 410. Has been. The direction in which the first cable 456 is wound around the first upper pulley 454 is opposite to the direction in which the second cable 462 is wound around the second upper pulley 460.

B-2. Mechanism of opening / closing operation of the outer door 410:
FIG. 10 shows a state where the movable member 510 is located at the protruding position. As shown in FIG. 10, when the movable member 510 is located at the protruding position, the movable member 510 overlaps with the engaging member 440 when viewed in the vertical direction. Therefore, when the inner door 300 is opened when the movable member 510 is located at the protruding position, the movable member 510 and the engaging member 440 are engaged.

  Therefore, when the inner door 300 is opened when the movable member 510 is located at the protruding position, the engaging member 440 that engages with the movable member 510 is lifted. As a result, the first cable 456 wound around the outer periphery of the first upper pulley 454 is released, and the second cable 462 is wound, and the outer door 410 is raised and opened.

  In the construction elevator 10A according to the second embodiment, since the outer diameter of the second upper pulley 460 is approximately twice the outer diameter of the first upper pulley 454, the speed at which the second cable 462 is wound is This is approximately twice the speed at which the cable 456 is released. Therefore, the outer door 410 rises at a speed twice that of the first inner door 300A, and the time required for the opening operation of the outer door 410 having a height approximately twice the height of the first inner door 300A, The time required for opening the inner door 300A is substantially the same.

  Further, when the inner door 300 is closed when the movable member 510 is located at the protruding position, the engaging member 440 and the outer door 410 are lowered by their own weight due to the lowering of the movable member 510, and the outer door 410 is closed.

  As described above, in the construction elevator 10A according to the second embodiment, the inner door 300 is configured by the first inner door 300A and the second inner door 300B arranged in the vertical direction, and the first inner door 300A. And the second inner door 300B are opened at the same time so as to be separated from each other in the vertical direction, the inner door 300 is opened compared to the case where the first inner door 300A and the second inner door 300B are sequentially opened. The time required for the door can be shortened. In addition, since the outer door 410 is opened at a speed larger than the speed of the first inner door 300A, the outer door 410 has a speed that is lower than the speed of the first inner door 300A. The time required for opening the door can be shortened. Thereby, the time required for opening the inner door 300 and the outer door 410 can be shortened.

  In the construction elevator 10A of the second embodiment, the lower pulley 458 is provided in the coupling mechanism 450, and when the outer door 410 is raised, the engaging member 440A is in a lifted state. In the construction elevator 10A of the second embodiment, for example, the movable engagement device 500 is attached near the upper end portion of the second inner door 300B without providing the lower pulley 458 in the coupling mechanism 450, and the second inner door It can be set as the structure by which the engaging member 440 is pushed down with the fall by the opening operation | movement of 300B. In the above configuration, as the engaging member 440 is pushed down, the first cable 456 is released, the second cable 462 is wound up, and the outer door 410 is raised and opened. However, if the engaging member 440 is pushed down when the outer door 410 is raised, and the engaging member 440 covers a part of the entrance / exit 214 of the transporter 210, the material etc. is moved up and down to the transporter 210. It becomes an obstacle to work.

  In the construction elevator 10A according to the second embodiment, the lower pulley 458 is provided in the coupling mechanism 450, and the engaging member 440A is lifted when the outer door 410 is lifted. It can be suppressed that the material is moved up and down to 210.

C. Variations:
The technology disclosed in the present specification is not limited to the above-described embodiment, and can be modified into various forms without departing from the gist thereof. For example, the following modifications are possible.

  In the said embodiment, although the building was illustrated as a structure, structures other than a building may be sufficient as a structure. Moreover, in the said embodiment, although the elevator of the construction elevator showed the example which raises / lowers the inside of the hoistway which connects the opening 30 provided in the floor slab 20 of each floor of a building, the elevator of a construction elevator is a building It may be arranged so as to move up and down the outside of the assembly scaffold arranged around.

  In the above-described embodiment, an example in which the movable member at the protruding position contacts and engages at least a part of the outer door mechanism is shown, but the present invention is not limited to this, and the movable member at the protruding position may be mechanically or electromagnet. For example, the outer door mechanism may be connected and engaged with at least a part of the outer door mechanism.

  In the first embodiment, the example in which the movable member 510 at the protruding position engages with the engaging member 440 when the movable member 510 at the protruding position engages at least a part of the outer door mechanism 400 has been described. It is not limited to this. For example, if the movable member 510 at the protruding position may be engaged with the lower end surface of the outer door 410, it may be engaged with another member constituting the outer door mechanism 400. In this case, the accommodation position can be said to be a position that does not overlap with the outer door mechanism 400 when viewed in the vertical direction.

  In the said embodiment, although the inner door and the outer door showed the example which is a vertical opening type door, it is not restricted to this, A horizontal opening type door may be sufficient. For example, when the inner door and the outer door are side-opening doors, when the movable member is positioned at the protruding position, the movable member overlaps with the engaging member in the left-right direction, and the movable member at the protruding position A part is located on the right side (X-axis positive direction) of the engaging member, and the other part of the movable member at the protruding position is located on the left side (X-axis negative direction) of the engaging member.

  In the above-described embodiment, the example in which the electric drive unit moves the movable member straight when the movable member moves in parallel between the protruding position and the storage position has been described. However, the parallel movement is not limited to the straight movement. Furthermore, the method in which the electric drive unit moves the movable member to the protruding position and the housing position is not limited to the method of moving the movable member in parallel, and the movable member may be rotated.

  FIG. 12 is a schematic top view of a movable engagement device 500A in a modified example. As shown in FIG. 12, one end of the movable member 510 </ b> A is supported by the rotating shaft 512 so that the movable member 510 </ b> A cannot move and can rotate in the horizontal direction. One end of the movable member 510 </ b> A and the rotation shaft 512 are arranged in a recess 302 formed on the rear side (Y-axis negative direction) surface of the inner door 300.

  As shown by a two-dot chain line in FIG. 12, when the movable member 510 </ b> A is located at the accommodation position, the movable member 510 </ b> A is accommodated in the recess 302. In addition, the movable member 510A does not overlap the outer door mechanism 400 when viewed in the vertical direction. Furthermore, when the movable member 510A is located at the storage position, at least a part of the movable member 510A is not located on the front side (Y-axis positive direction) from the inner door 300. Therefore, it is possible to suppress the movable member 510 </ b> A at the housing position from interfering with other members of the construction elevator 10.

  On the other hand, as shown by a solid line in FIG. 12, when the movable member 510A is located at the protruding position, the other end of the movable member 510A that is not supported by the rotating shaft 512 protrudes from the recess 302, and the movable member 510A It overlaps with the engaging member 440 when viewed in the vertical direction. Specifically, a part of the movable member 510 </ b> A at the protruding position is located below the engaging member 440. Therefore, when the inner door 300 is opened when the movable member 510A is located at the protruding position, the movable member 510A and the engaging member 440 are engaged.

  The electric drive unit 520A is housed in the recess 302, and rotates the movable member 510A by 90 degrees in the horizontal direction to move the movable member 510A to the protruding position and the housing position. Since the electric drive unit 520A rotates the movable member 510A, the driving force required for the electric drive unit 520A to move the movable member 510A can be reduced as compared with the case where the movable member 510A is moved in parallel. The configuration of the electric drive unit 520A can be simplified.

  In the said embodiment, although the outer door 410 showed the example which is a blind curtain type door, it is not restricted to this. For example, the outer door may be a sliding door. The slide type door has a mechanical strength compared to a blind curtain type door that is connected in the vertical direction by connecting parts such as hinges because multiple doors are connected by mechanical contacts. Can be high.

  For example, the outer door 410 may be a winding door that is wound around the shaft body 452. The winding-type door has fewer mechanical contacts than the blind curtain-type door in which a plurality of door bodies are connected in the vertical direction, and can improve the operation reliability.

  In the first embodiment, the example in which the door closing process is started when a landing instruction from the user is input is shown, but the present invention is not limited to this. For example, the door closing process may be started after a predetermined time from the end of the door opening process.

1: Building 10, 10A: Elevator for construction 100: Strut 210: Transporter 214: Entrance / exit 230: Electric motor 235: Electric motor 300: Inner door 300A: First inner door 300B: Second inner door 400, 400A: Outer door mechanism 410: Outer door 412: Door body 420: Outer door column 440, 440A: Engaging member 450: Connection mechanism 452: Shaft body 454: First upper pulley 456: First cable 458: Lower pulley 460: Second upper side Pulley 462: Second cable 500, 500A: Movable engagement device 510, 510A: Movable member 520, 520A: Electric drive unit

Claims (8)

A construction elevator installed across multiple floors of a structure under construction,
A column extending in the vertical direction;
The hoistway can be moved up and down along the support column, a storage space is formed inside, and a loading / unloading port is formed on a side surface surrounding the storage space;
An elevating and lowering driving device for elevating and lowering the carrier;
An inner door provided in the carrier for opening and closing the entrance;
An electric motor provided in the transporter and configured to open and close the inner door;
An outer door mechanism including an outer door provided on each of the plurality of floors and opening and closing an opening leading to the hoistway;
A first position that is attached to the inner door and overlaps at least a part of the outer door mechanism as viewed in the opening and closing direction when the outer door is opened and closed, and a second position that does not overlap with the outer door mechanism when viewed in the opening and closing direction. A movable engagement that includes a movable member that is movable and engages at least a part of the outer door mechanism and opens the outer door when the inner door opens. And a construction elevator comprising the apparatus. A construction elevator according to claim 1,
A construction elevator in which the inner door and the outer door are vertically open doors. A construction elevator according to claim 2,
The movable engagement device further includes an electric drive unit that electrically moves the movable member to the first position and the second position. The construction elevator according to claim 3,
The electric drive unit is a construction elevator that moves the movable member to the first position and the second position by translating the movable member. The construction elevator according to claim 3,
The electric drive unit is a construction elevator that moves the movable member to the first position and the second position by rotating the movable member. A construction elevator according to any one of claims 3 to 5,
The inner door and the outer door are doors that open by ascending,
The movable engagement device is disposed near the lower end of the inner door,
The construction elevator, wherein the movable member is engageable with an engaging portion provided near a lower end of the outer door. A construction elevator according to any one of claims 3 to 5,
The inner door includes a first inner door and a second inner door disposed below the first inner door,
The first inner door is a door that opens when it rises;
The second inner door is a door that opens by lowering,
The electric motor opens the first inner door and the second inner door simultaneously,
The movable engagement device is disposed near the lower end of the first inner door,
The outer door mechanism further includes:
An engaging member engageable with the movable member;
The outer door and the engaging member are connected, and the outer door is opened at a speed larger than the speed of the engaging member that is engaged with the movable member and rises as the first inner door opens. A construction elevator including a connecting mechanism for doors. A construction elevator according to any one of claims 2 to 7,
The elevator for construction, wherein the entrance is horizontally long.

Images