JP6587150B2 - Elevator hoisting device, elevator and hoisting device rope cover - Google Patents

Description

  The present invention relates to an elevator hoisting device, an elevator, and a hoisting device rope cover for raising and lowering a car in a hoistway in a building.

  The elevator is provided so that it can be moved up and down in the hoistway in the building, the counter weight provided in the hoistway so as to be moved up and down, the rope connecting the car and the counter weight, and the rope in the longitudinal direction And an elevator hoisting device (hereinafter referred to as hoisting device).

  The hoisting device includes a main sheave around which a rope is wound and a motor that rotationally drives the main sheave, and is disposed in a region that is arranged in series in the vertical direction with respect to the hoistway. Such a hoisting device rotates the main sheave forward and backward by driving a motor, thereby sending a rope wound around the main sheave in the longitudinal direction, and raising and lowering the car and the counterweight.

  The hoisting device and the rope are maintained and inspected by the operator. When performing maintenance / inspection, the operator needs to approach the operating area of various devices. To ensure the safety of the operator, this type of elevator is equipped with a cover that covers the part that operates when the car is raised and lowered. .

  Specifically, in this type of elevator, since a long rope is wound around the main sheave, the rope 100 is U-turned on the main sheave 102 as shown in FIG. That is, the rope 100 in the area where the operator approaches is a turn part 100a along the outer periphery of the main sheave 102 and a pair of straight parts 100b continuous to the turn part 100a, each on the outer periphery of the main sheave 102. And a pair of straight portions 100b extending in the tangential direction. Accordingly, the hoisting device 101 includes a first cover portion 103 that covers a region of the outer periphery of the main sheave 102 and the turn portion 100a of the rope 100. The hoisting device 101 includes a second cover portion 104 that covers the straight portion 100b of the rope 100 in addition to the first cover portion 103 (see, for example, Patent Document 1).

  The 1st cover part 103 and the 2nd cover part 104 are arrange | positioned continuously. That is, the 1st cover part 103 and the 2nd cover part 104 are arrange | positioned along the movement locus | trajectory of the rope 100 in the area | region which an operator approaches, and cover (enclose) the rope 100 (movement locus | trajectory of the rope 100) from the outside. ).

  This prevents the operator from inadvertently touching the operating portion of the hoisting device 101 or the rope 100 when the operator performs maintenance / inspection.

  By the way, the operator confirms the state of the straight portion 100b of the rope 100 when performing maintenance / inspection of the rope 100. That is, in order to inspect the rope 100 (check whether there is damage or the like), it is necessary to check the state of the entire rope 100 (the entire outer periphery of the rope 100), but the turn portion 100a of the rope 100 has a main sheave 102. Is in a state where the entire outer periphery cannot be confirmed.

  Therefore, the operator checks the state of the portion (straight portion 100b) of the rope 100 that is not wound around the main sheave 102.

  However, in the conventional hoisting device 101, since the second cover portion 104 covers the straight portion 100b of the rope 100 from the outside (the movement trajectory of the rope 100), the entire straight portion 100b of the rope 100 is left as it is. Can not be confirmed.

  Therefore, in the conventional hoisting device 101, when the operator inspects (confirms) the rope 100, at least the second cover portion 104 (the first cover portion 103 and the second cover portion are those of the type shown in FIG. 7). 104) is removed, and after inspection (confirmation), at least the second cover part 104 (the first cover part 103 and the second cover part 104 in the type shown in FIG. 7) needs to be attached. Therefore, the conventional hoisting apparatus 101 has a problem that it takes time and labor for maintenance and inspection of the rope 100.

JP-A-11-79604

  Therefore, the present invention provides an elevator hoisting device, an elevator, and a hoisting device rope cover that can improve the workability of rope maintenance / inspection work while ensuring the safety of workers. Is an issue.

The elevator hoisting apparatus according to the present invention rotates a main sheave and a main sheave around which a rope for suspending a car and a counterweight suspended in the hoistway is provided. At least one of a motor to be driven, a first cover portion that covers the turn portion of the rope in contact with the main sheave from the outside, and a pair of straight portions of the rope that is continuous with the turn portion and extends tangentially to the main sheave 2nd cover part covering the outside, machine base connected to the structure of the building, and arranged on the machine base in a state slidable in the vertical direction and the direction orthogonal to the rotation axis of the main sheave It includes a receiving member that is, the second cover portion, one of the cover body arranged in the extending direction of the straight portion of the rope and the first cover portion It includes other cover body disposed between one of the cover body, one cover member and the other of the cover body, respectively, to expose the straight portion of the state and the rope over the straight portion of the rope to the outside The other cover body is provided so as to be fixed at a fixed position in a state of covering at least the straight portion of the rope, and one end portion adjacent to the first cover portion is used as a rotation fulcrum. One cover body is provided so as to be rotatable and can be fixed at an arbitrary rotation angle, and one end of the cover that is located on the side farther from the other cover body in the direction in which the straight portion extends is used as a rotation fulcrum. One end of the one cover body located on the side far from the other cover body is rotatably connected to the receiving member, and in the vertical direction, and It is repositionable in a direction perpendicular to the respective rotation axes of Inshibu, characterized in that.

  According to the above configuration, the first cover portion covers the turn portion of the rope in contact with the main sheave from the outside, and the second cover portion is connected to the turn portion and extends in the tangential direction with respect to the main sheave. To cover at least one of the parts (at least one of the one end side and the other end side of the rope extending from the main sheave) from the outside, even if an operator who performs maintenance and inspection approaches the main sheave and its surroundings , Direct contact with the main sheave and rope is prevented.

And since at least a part of the second cover part is configured to be able to change the position between a state where the straight part of the rope is covered and a state where the straight part of the rope is exposed to the outside, the operator performs maintenance and inspection. In this case, it is possible to check the straight part of the rope by simply changing the position of at least a part of the second cover part, and at least a part of the second cover part after the maintenance / inspection is completed. The straight portion of the rope can be returned to the state covered from the outside simply by changing the position of.
Moreover, according to the above configuration, at least one of the two cover bodies (the cover body that is at least a part of the second cover portion) rotates with one end portion as a rotation fulcrum, The position of the cover body is changed between a state where the straight portion of the rope is covered and a state where the straight portion of the rope is exposed to the outside. Therefore, workability during maintenance / inspection is improved.

In this case, hand cover body may be configured to overlap the outer side of the other cover member while covering the ropes.

  According to the above configuration, the one cover body is supported by the other cover body in a state where the one cover body covers the straight portion of the rope. That is, one cover body is positioned on the other cover body in a state of covering the straight portion of the rope. Therefore, when the second cover portion covers the straight portion of the rope, the cover body is arranged at an appropriate position without complicated work.

In these cases, the elevator hoisting device includes a deflector sheave arranged at a position shifted in the vertical direction and the direction perpendicular to the vertical direction with respect to the main sheave, and at least one of the pair of straight portions in the rope. The straight part is spanned between the main sheave and the deflector sheave, and the two cover bodies constituting the second cover part cover the straight part of the rope spanned between the main sheave and the deflector sheave, and the two cover bodies one end portion of one of the cover of the upper and lower directions and may be found provided repositionable in a direction perpendicular.

  According to the above configuration, the deflector sheave is arranged with a position shifted in the vertical direction and in the direction perpendicular to the vertical direction with respect to the main sheave, so the straight portion of the rope spanned between the main sheave and the deflector sheave is in the vertical direction. It extends in the direction inclined with respect to. Therefore, the straight part in the inclined rope is covered with the second cover part, and one of the cover bodies constituting a part thereof is rotated (by changing the position), so that the straight part in the inclined rope is external. Exposed to. Thereby, the operator can perform confirmation of the whole straight part in a rope easily.

  The deflector sheave is for shifting the arrangement of the rope, and the arrangement may be adjusted. Along with this, the inclination angle of the straight portion of the rope spanned between the main sheave and the deflector sheave also changes, but as described above, the other cover body is provided rotatably as a rotation fulcrum, Since it is provided so as to be fixed at an arbitrary rotation angle, it is maintained at an angle corresponding to the posture (inclination) of the straight portion of the rope. Since one end of the cover body is provided so that the position of one end serving as a rotation fulcrum can be changed in a direction perpendicular to the vertical direction, the posture is changed (angle changed) by changing the arrangement of one end. The posture corresponds to the posture of the other cover body. In this state, the positional relationship (distance) between the other end of the one cover body and the other end of the other cover body is also changed, but in the state where the straight portion of the rope is covered, Since it is configured to overlap with the cover body, only the amount of overlap is changed, and one cover body is supported by the other cover body.

  Therefore, even if the arrangement of the deflector sheave is adjusted, the straight portion of the rope can be moved without removing or attaching the second cover (two cover bodies) or aligning the two cover bodies (adjustment work). It can be in a properly covered state.

  The elevator according to the present invention suspends a car and a counterweight in a hoistway, a counterweight provided so as to be movable in a vertical direction in a hoistway, whether it is provided in a hoistway in a building. An elevator hoisting device including a rope, a main sheave around which the rope is wound, and a motor that rotationally drives the main sheave, including any one of the above hoisting devices for an elevator.

  According to the above configuration, since any one of the above hoisting devices is provided, the above-described operations and effects can be achieved.

A rope cover for a hoisting device according to the present invention is a part of a rope that suspends a car and a counter weight provided in a hoistway of a building so as to be movable in the vertical direction, and drives a motor. A first cover portion that is wound around a main sheave that rotates by receiving and covers the turn portion of the rope along the main sheave from the outside, and is part of the rope, continuous to the turn portion and against the main sheave A second cover portion that covers at least one of the pair of straight portions of the rope extending in the tangential direction from the outside, and the second cover portion includes the one cover body and the first cover body arranged in the direction in which the straight portion of the rope extends. It includes other cover body disposed between the first cover part and the one cover member, one of the cover body and the other of the cover body, respectively, storage of the rope Parts are repositionable configured into a state of being exposed straight portion to the outside in a state the rope covering, the other cover body, it is provided so as to be secured in place while covering the straight portion of at least the rope In addition, the first cover portion is provided so as to be rotatable with one end portion adjacent to the first cover portion as a rotation fulcrum, and can be fixed at an arbitrary rotation angle. One end located on the side farther from the cover body is rotatable about a rotation fulcrum, and one end located on the side farther from the other cover body of the one cover body is rotated in the vertical direction and the main sheave. It is connected to the receiving member arranged on the machine base that is connected to the building structure so as to be slidable in the direction orthogonal to each of the axes, and the vertical direction And, characterized in that in a direction perpendicular to each of the main sheave rotation shaft is repositionable.

  According to the above configuration, the first cover portion covers the turn portion of the rope in contact with the main sheave from the outside, and the second cover portion is connected to the turn portion and extends in the tangential direction with respect to the main sheave. To cover at least one of the parts (at least one of the one end side and the other end side of the rope extending from the main sheave) from the outside, even if an operator who performs maintenance and inspection approaches the main sheave and its surroundings , Direct contact with the main sheave and rope is prevented.

  And since at least a part of the second cover part is configured to be able to change the position between a state where the straight part of the rope is covered and a state where the straight part of the rope is exposed to the outside, the operator performs maintenance and inspection. In this case, it is possible to check the straight part of the rope by simply changing the position of at least a part of the second cover part, and at least a part of the second cover part after the maintenance / inspection is completed. It is possible to return to a state where the straight portion of the rope is covered from the outside simply by changing the position of.

  As described above, the present invention can provide an excellent effect that the workability of the maintenance / inspection work of the rope can be improved while ensuring the safety of the worker.

FIG. 1 is an overall schematic perspective view of an elevator according to an embodiment of the present invention. FIG. 2 is a schematic front view of the elevator hoist apparatus according to the embodiment, and is a schematic front view in a state where the second cover portion covers the straight portion of the rope. FIG. 3 is a schematic front view of the elevator hoist apparatus according to the embodiment, and is a schematic front view in a state where the second cover portion exposes the straight portion of the rope to the outside. FIG. 4 is a schematic perspective view of an elevator according to another embodiment of the present invention. FIG. 5 is a schematic front view of an elevator hoist apparatus according to another embodiment of the present invention. FIG. 6 is a schematic front view of an elevator hoist apparatus according to another embodiment of the present invention. FIG. 7 is a schematic front view of a conventional elevator hoist apparatus.

  Hereinafter, an embodiment of the present invention will be described with reference to the accompanying drawings.

  As shown in FIG. 1, an elevator 1 includes a car 2 provided in a hoistway 10 in a building so as to be movable in the vertical direction, a counterweight 3 provided in a hoistway 10 so as to be movable in a vertical direction, and a car 2. And a rope 4 for suspending the counterweight 3 in the hoistway 10 and an elevator hoisting device (hereinafter simply referred to as hoisting device) 5 for sending the rope 4 in the longitudinal direction.

  The car 2 has a predetermined number of people and is configured to accommodate the number of users. The counterweight 3 is intended to balance the weight with the car 2 and reduces the load on the hoisting device 5. Each of the car 2 and the counterweight 3 is provided so as to be movable in the vertical direction on the hoistway 10 in the building as described above. The car 2 and the counterweight 3 may be provided so as to be movable by an independent hoistway 10. However, in the present embodiment, the car 2 and the counterweight 3 are arranged in a common hoistway 10 and move vertically in the hoistway 10. To do. Needless to say, the car 2 and the counterweight 3 are arranged at positions shifted in the horizontal direction perpendicular to the vertical direction so as not to interfere during movement.

  In the present embodiment, one end side of the rope 4 is connected to the car 2, and the other end side of the rope 4 is connected to the counterweight 3. Between the one end and the other end of the rope 4 (between one end to which the car 2 is connected and the other end to which the counterweight 3 is connected), the rope 4 is arranged in a region adjacent to the hoistway 10 in the vertical direction. It is appropriately wound around a sheave (for example, a main sheave 50 or a deflector sheave 52 described later).

  The hoisting device 5 is arranged in a region aligned in series in the vertical direction with respect to the hoistway 10. In the present embodiment, the hoisting device 5 is disposed in a region (so-called machine room) 11 above the hoistway 10.

  2 and 3, the hoisting device 5 includes a main sheave 50 around which the rope 4 is wound, a motor 51 that rotationally drives the main sheave 50, and a vertical direction and a vertical direction with respect to the main sheave 50. It includes a deflector sheave 52 disposed at a position shifted in the orthogonal direction, a braking device 53 for stopping the driving of the motor 51, and a machine base 54 for supporting them. In addition to the above configuration, the hoisting device 5 according to the present embodiment includes a rope cover (a hoisting device rope cover) 6 that covers the rope 4 that moves within the region 11 in which the hoisting device 5 is installed (see FIG. 1). That is, the hoisting device 5 (rope cover 6) includes a first cover portion 55 that covers the turn portion 40 of the rope 4 in contact with the main sheave 50 from the outside, and a tangent to the main sheave 50 that is continuous with the turn portion 40. 2nd cover parts 56 and 57 which cover at least any one of a pair of straight part 41 and 41 in the rope 4 extended in a direction from the outside are included.

  The main sheave 50 is a so-called pulley and has a groove (not shown) for fitting the rope 4 on the outer periphery.

  The motor 51 includes a motor case 510 that houses a rotor, a stator, and the like (not shown), and a drive shaft 511 that is connected to the rotor in the motor case 510 and protrudes outward from the motor case 510. And a drive shaft 511 extending in the direction. The motor case 510 is fixed to the machine base 54. A main sheave 50 is connected to the drive shaft 511 of the motor 51.

  Like the main sheave 50, the deflector sheave 52 is a so-called pulley, and has a groove (not shown) for fitting the rope 4 into the outer periphery. The deflector sheave 52 is arranged such that its own rotation center axis is parallel or substantially parallel to the rotation center axis of the main sheave 50 and its own groove is in line with the groove of the main sheave 50. In the present embodiment, the deflector sheave 52 is fixed to the machine base 54 via a bearing 520. The deflector sheave 52 according to the present embodiment is provided so that the position can be adjusted in the lateral direction orthogonal to the vertical direction and can be fixed at an appropriate position. That is, the bearing 520 that pivotally supports the deflector sheave 52 is provided so as to be capable of changing its position in the lateral direction with respect to the machine base 54 and to be fixed at an arbitrary position within the position adjustment range. As described above, the hoisting device 5 according to the present embodiment includes the deflector sheave 52, and therefore, at least one straight portion 41 of the pair of straight portions 41, 41 in the rope 4 wound around the main sheave 50 ( In the present embodiment, one straight portion 41) is bridged between the main sheave 50 and the deflector sheave 52.

  The braking device 53 stops rotation of the drive shaft 511. In the present embodiment, the braking device 53 is disposed on the both sides of the disk rotor 530 connected to the drive shaft 511 of the motor 51 and the disk rotor 530. A disc brake including a brake caliper 531 that relatively moves a pair of brake pads (not shown) in the contact / separation direction is employed. The disk rotor 530 is disposed between the main sheave 50 and the motor case 510 (see FIG. 1).

  The machine base 54 is a beam-shaped main base 540 extending in a lateral direction perpendicular to the vertical direction, and includes a main base 540 connected to a building structure (column or beam). The machine base 54 also includes a sub base 541 connected to the main base 540.

  As described above, since the hoisting device 5 is disposed in the machine room 11 that is an area above the hoistway 10, the machine base 54 (main base 540) includes the hoistway 10 and the hoistway 10 above. Between the machine room 11 and the machine room 11. In the present embodiment, the main base 540 supports the deflector sheave 52. That is, a bearing 520 that pivotally supports the deflector sheave 52 is fixed to the main base 540. The sub base 541 is disposed on the main base 540 and supports the motor 51. That is, the sub-base 541 supports the motor 51 so that the drive shaft 511 of the motor 51 (the rotation center axis of the main sheave 50) is located above the rotation center axis of the deflector sheave 52.

  The first cover portion 55 covers a part of the outer periphery of the main sheave 50. In this embodiment, since the hoisting device 5 is disposed in the machine room 11 above the hoistway 10, the rope 4 is wound around the main sheave 50 from above. Accordingly, the first cover portion 55 is formed so as to cover the upper portion of the main sheave 50. The first cover part 55 is fixed so that it can be maintained in a state where a part of the main sheave 50 is covered. That is, the first cover portion 55 includes a first cover main body portion 550 that covers the main sheave 50 and a fixing portion 551 connected to the first cover main body portion 550, and the fixing portion 551 is the motor case 510 or the machine base 54. The first cover main body 550 is maintained in a fixed position by being fixed to.

  In the hoisting device 5 according to the present embodiment, the second cover portions 56 and 57 are provided corresponding to the pair of straight portions 41 and 41, respectively. That is, the hoisting device 5 includes a pair of second cover portions 56 and 57.

  In this embodiment, a pair of 2nd cover parts 56 and 57 differ in a structure. Specifically, one of the second cover portions 56 is configured only to ensure the safety of the operator, and is fixed at a fixed position while covering the other straight portion 41 in the machine room 11. Is done. In the present embodiment, one second cover portion 56 is the other straight portion 41 connected to the turn portion 40 in the rope 4, and covers the straight portion 41 that hangs down vertically from the turn portion 40 from the lateral direction.

  On the other hand, the other second cover part 57 is configured to enable maintenance and inspection work by the worker while ensuring the safety of the worker, and at least the other second cover part 57 is configured. A part of the rope 4 is configured to be able to change its position between a state where the straight portion 41 of the rope 4 is covered and a state where the straight portion 41 of the rope 4 is exposed to the outside. In the present embodiment, the other second cover portion 57 is one straight portion 41 connected to the turn portion 40 in the rope 4, spanned between the main sheave 50 and the deflector sheave 52, and obliquely downward from the turn portion 40. The straight portion 41 extending toward the top is covered from above.

  Specifically, the other second cover portion 57 includes two cover bodies 57a and 57b arranged in the direction in which the straight portion 41 of the rope 4 extends. In the present embodiment, the two cover bodies 57 a and 57 b constituting the second cover portion 57 cover one straight portion 41 of the rope 4 that is spanned between the main sheave 50 and the deflector sheave 52.

  Each of the two cover bodies 57a and 57b includes a flat plate-like main body portions 570a and 570b, and a pair of side wall portions 571a and 571b extending from both ends of the main body portions 570a and 570b in a direction orthogonal to the main body portions 570a and 570b. .

  One cover body (hereinafter referred to as a first cover body) 57a is rotatably provided with one end portion of the rope 4 in the extending direction of the straight portion 41 as a rotation fulcrum. Moreover, the one end part of the 1st cover body 57a is provided so that a position change is possible in the direction orthogonal to an up-down direction. The first cover body 57a is configured to overlap the second cover body 57b from the outer side in a state where the rope 4 is covered. That is, the first cover body 57a is formed such that its main body 570a overlaps the main body 570b of the second cover body 57b from the outer side in a state of covering the straight portion 41 of the rope 4.

  Specifically, the hoisting device 5 includes a receiving member 58 disposed on the machine base 54, and a receiving member 58 and a first cover body 57a around an axis extending in a vertical direction and a direction orthogonal to the extending direction of the rope 4. And a hinge (hereinafter referred to as a first hinge) 59 for connecting the one end portion of the first cover body 57a and the receiving member 58 so as to be relatively rotatable.

  The receiving member 58 is fixed to the machine base 54 (main base 540). In the present embodiment, the receiving member 58 can be changed in the direction perpendicular to the vertical direction and the direction in which the shaft axis extends within a predetermined range on the machine base 54, and can be arbitrarily changed within the predetermined range. It can be fixed in position. In the present embodiment, the receiving member 58 is slidably provided on the machine base 54 and is fixed by being bolted at an arbitrary position.

  In the present embodiment, the first hinge 59 is a pair of first piece members 590a and 590b and a first shaft 591 extending in a direction perpendicular to the vertical direction, and the pair of first piece members 590a and 590b are pivotally connected. And a first shaft 591. In the first hinge 59, one first piece member 590a is connected to the receiving member 58, and the other first piece member 590b is connected to one end of the first cover body 57a.

  The other cover body (hereinafter referred to as the second cover body) 57b of the two cover bodies 57a and 57b is adjacent to the first cover portion 55. That is, the second cover body 57b is disposed between the first cover portion 55 and the first cover body 57a.

  The second cover body 57b is provided so as to be fixed at a fixed position while covering at least the straight portion 41 of the rope 4. In the present embodiment, the second cover body 57b is one end portion of the rope 4 in the extending direction of the straight portion 41, and is rotatably provided with one end portion adjacent to the first cover portion 55 as a rotation fulcrum. It is provided so as to be fixed at an arbitrary rotation angle.

  More specifically, the hoisting device 5 is configured so that the first cover portion 55 and the second cover body 57b can rotate relative to each other around an axis extending in the vertical direction and in a direction orthogonal to the direction in which the rope 4 extends. A second hinge 60 is provided to connect one end of 57b and the first cover portion 55.

  In the present embodiment, the second hinge 60 is a pair of second piece members 600a and 600b and a second shaft 601 extending in a direction orthogonal to the vertical direction, and the pair of second piece members 600a and 600b are pivotally connected. And a second shaft 601. In the second hinge 60, one second piece member 600a is connected to the first cover portion 55, and the other second piece member 600b is connected to one end portion of the second cover body 57b.

  The hoisting device 5 according to the present embodiment includes a support member 61 that supports the second cover body 57b. The support member 61 is elongated in one direction, one end in the longitudinal direction is coupled to the machine base 54, and the other end is coupled to the second cover body 57b from the one end.

  More specifically, one end portion in the longitudinal direction of the support member 61 is pivotally supported by a cradle 610 fixed to the machine base 54. As a result, the support member 61 is rotatably provided with one end portion in the longitudinal direction as a rotation fulcrum. The support member 61 is a long hole 611 extending in the longitudinal direction, and has a long hole 611 through which a shaft body 612 for connection to the second cover body 57b is inserted. The shaft body 612 inserted through the long hole 611 is a rod-shaped male screw body inserted or fixed to the second cover body 57b. The support member 61 is coupled to the second cover body 57b by tightening a female screw body (for example, a nut) (not shown) screwed into the male screw body 612 inserted through the long hole 611, and supports the second cover body 57b. On the other hand, the support of the second cover body 57b is released by loosening the female screw body. That is, by tightening the female screw body screwed into the male screw body 612, the support member 61 supports the second cover body 57b at a fixed position, while loosening the female screw body screwed into the male screw body 612, the male screw The body 612 can move along the long hole 611, and the support member 61 tilts according to the posture of the second cover body 57b that rotates. Thus, the support member 61 can be switched between a state in which the rotation (tilt) of the second cover body 57b is allowed and a state in which the second cover body 57b is supported at a fixed position.

  As described above, the elevator 1 (the hoisting device 5) according to the present embodiment is connected at one end to the car 2 provided so as to be movable in the vertical direction by the hoistway 10 in the building, and at the hoistway 10 A main sheave 50 around which a rope 4 having the other end connected to a counterweight 3 movably provided in the direction is wound, a motor 51 that rotationally drives the main sheave 50, and a turn portion of the rope 4 that is in contact with the main sheave 50 A first cover portion 55 that covers 40 from the outside, and at least one straight portion 41 of the pair of straight portions 41, 41 in the rope 4 that is continuous to the turn portion 40 and extends tangential to the main sheave 50. A second cover portion 57 that covers from the outside, and at least a portion of the second cover portion 57 covers the straight portion 41 of the rope 4. See FIG. 2) and the repositionable configured to a state in which the straight portion 41 of the rope 4 is exposed to the outside (see FIG. 3).

  According to the above configuration, the first cover portion 55 covers the turn portion 40 of the rope 4 in contact with the main sheave 50 from the outside, and the second cover portion 57 continues to the turn portion 40 and is tangential to the main sheave 50. Since the straight portion 41 of at least one of the pair of straight portions 41, 41 in the rope 4 extending to the outside (at least one of the one end side and the other end side of the rope 4 extending from the main sheave 50) is covered from the outside, maintenance is performed. -Even if the operator who performs an inspection approaches the main sheave 50 and its periphery, it is prevented that the main sheave 50 and the rope 4 are touched directly.

  And since at least one part of the 2nd cover part 57 is comprised so that position change is possible in the state which covered the straight part 41 in the rope 4, and the state which exposed the straight part 41 in the rope 4 to the exterior, an operator In the maintenance / inspection, the position of the straight portion 41 of the rope 4 can be confirmed only by changing the position of at least a part of the second cover portion 57, and after the maintenance / inspection is completed, The straight part 41 in the rope 4 can be returned to the state of covering the rope 4 from outside only by changing the position of at least a part of the second cover part 57.

  In particular, in the present embodiment, the second cover portion 57 includes two cover bodies 57a and 57b arranged in the extending direction of the straight portion 41 of the rope 4, and at least one of the two cover bodies 57a and 57b. Since the cover body (in this embodiment, the first cover body) 57a is rotatably provided with one end of the rope 4 in the extending direction of the straight portion 41 as a rotation fulcrum, the two cover bodies 57a and 57b are provided. The cover body (a first cover body which is at least a part of the second cover portion 57 in the present embodiment) 57a is rotated with one end portion serving as a rotation fulcrum. 57b changes the position between the state where the straight portion 41 of the rope 4 is covered and the state where the straight portion 41 of the rope 4 is exposed to the outside.Therefore, workability during maintenance / inspection is improved.

  The other cover body (second cover body in the present embodiment) 57b of the two cover bodies 57a and 57b is disposed between the first cover portion 55 and the first cover body 57a. The first cover body 57a is provided so as to be fixed at a fixed position in a state where at least the straight portion 41 of the rope 4 is covered, and the first cover body 57a overlaps the second cover body 57b from the outer side while covering the rope 4. Therefore, the first cover body 57a is supported by the second cover body 57b in a state where the first cover body 57a covers the straight portion 41 of the rope 4. That is, the first cover body 57a is positioned on the second cover body 57b in a state where the straight portion 41 of the rope 4 is covered. Therefore, when the second cover portion 57 covers the straight portion 41 of the rope 4, the cover bodies 57 a and 57 b are arranged at appropriate positions without complicated operations.

  Further, the hoisting device 5 according to the present embodiment includes a deflector sheave 52 disposed at a position shifted in the vertical direction and the direction perpendicular to the vertical direction with respect to the main sheave 50, and a pair of straight portions 41 in the rope 4. , 41 is spanned between the main sheave 50 and the deflector sheave 52, and the two cover bodies 57a, 57b constituting the second cover portion 57 are composed of the main sheave 50 and the deflector sheave 52. The straight portion 41 of the rope 4 spanned between the two is covered, and one end of one of the two cover bodies 57a and 57b (first cover body) 57a is repositioned in a direction perpendicular to the vertical direction. The other cover body (second cover body) 57b of the two cover bodies 57a and 57b is provided on the rope 4. Together provided rotatably in the the kicking end adjacent to the first cover portion 55 of the extending direction of the straight portion 41 rotation support, and is provided so as to be fixed at an arbitrary rotation angle. Thus, when the straight portion 41 of the rope 4 is bridged between the main sheave 50 and the deflector sheave 52, the straight portion 41 extends in a direction inclined with respect to the vertical direction. Accordingly, the straight portion 41 of the inclined rope 4 is covered by the second cover portion 57, and the first cover body 57a constituting a part thereof is rotated (by changing the position), whereby the inclined rope 4 is inclined. The straight portion 41 is exposed to the outside. Thereby, the operator can easily check the entire straight portion 41 of the rope 4.

  The deflector sheave 52 is for shifting the arrangement of the rope 4, and the arrangement may be adjusted. Along with this, the inclination angle of the straight portion 41 in the rope 4 spanned between the main sheave 50 and the deflector sheave 52 also changes. As described above, the second cover body 57b can be rotated as a rotation fulcrum. In addition, since it is provided so as to be fixed at an arbitrary rotation angle, the rope 4 is maintained at an angle corresponding to the posture (inclination) of the straight portion 41. Since the first cover body 57a is provided so that the position of one end serving as a rotation fulcrum can be changed in a direction orthogonal to the vertical direction, the posture is changed (angle changed) by changing the arrangement on the one end side. The posture corresponds to the posture of the second cover body 57b. In this state, the positional relationship (distance) between the other end of the first cover body 57a and the other end of the second cover body 57b is also changed, but with the straight portion 41 in the rope 4 covered, Since the cover body 57a is configured to overlap the second cover body 57b, the first cover body 57a is supported by the second cover body 57b only by changing the overlap amount.

  Therefore, even if the arrangement of the deflector sheave 52 is adjusted, the work of attaching and detaching the second cover portion 57 (two cover bodies 57a and 57b) and the position adjusting work (adjustment work) of the two cover bodies 57a and 57b are performed. The straight portion 41 of the rope 4 can be properly covered without any problem.

  In addition, this invention is not limited to the said embodiment, Of course, it can add suitably in the range which does not deviate from the summary of this invention.

  For example, in the above embodiment, the elevator 1 in which the hoisting device 5 is installed in the region (machine room 11) above the hoistway 10 has been described, but the present invention is not limited to this. For example, as shown in FIG. 4, a so-called machine roomless elevator 1 in which the hoisting device 5 is installed in a region below the hoistway 10 may be used. In this case, since the straight portions 41 and 41 of the rope 4 extend upward from the turn portion 40, the first cover portion 55 and the second cover portions 56 and 57 are arranged in the arrangement described in the above embodiment. Can be placed upside down. In this case, since the machine room 11 itself does not exist, it is needless to say that the second cover portions 56 and 57 may be arranged in an area where the operator enters. Further, at least a part of the second cover portions 56 and 57 is configured to be capable of changing the position between a state where the straight portion 41 of the rope 4 is covered and a state where the straight portion of the rope 4 is exposed to the outside of the 41. Of course.

  In the above embodiment, one end of the rope 4 is connected to the car 2 and the other end of the rope 4 is connected to the counterweight 3. However, the present invention is not limited to this. For example, one end side and the other end side of the rope 4 are fixed to a building, and between the one end and the other end of the rope 4 is wound around the main sheave 50, and between the one end of the rope 4 and the main sheave 50 is a cage. 2 and the other end of the rope 4 and the main sheave 50 may be wound around a pulley provided on the counterweight 3. That is, the elevator 1 may be of a type having a moving pulley around which the car 2 and the counterweight 3 are wound around the rope 4. In short, the rope 4 suspends the car 2 and the counterweight 3 in the hoistway 10 in a state where the car 2 and the counterweight 3 can be raised and lowered in the hoistway 10 as the main sheave 50 rotates. Then, the installation mode of the rope 4 can be changed as appropriate.

  In the said embodiment, although the pair of 2nd cover parts 56 and 57 which cover each of a pair of straight part 41 and 41 in the rope 4 were set as the different structure, it is not limited to this. For example, each of the pair of second cover portions 56 and 57 is configured to be capable of changing the position between a state where a part of the second cover portions 56 and 57 covers the straight portion 41 of the rope 4 and a state where the straight portion 41 of the rope 4 is exposed to the outside. May be.

  In the said embodiment, although a pair of 2nd cover parts 56 and 57 which cover each of a pair of straight parts 41 and 41 in the rope 4 were provided, it is not limited to this. For example, if the operator cannot approach any one of the straight portions 41 due to the arrangement of the hoisting device 5, the remaining straight portions 41 are covered with the second cover portions 56 and 57. Good. However, in this case, the second cover portions 56 and 57 are configured so that the position of the second cover portions 56 and 57 can be changed between a state where a portion of the second cover portions 56 and 57 covers the straight portion 41 of the rope 4 and a state where the straight portion 41 of the rope 4 is exposed to the outside. Of course.

  In the above embodiment, the other second cover portion 57 includes the first cover body 57a and the second cover body 57b, and the first cover body 57a covers the straight portion 41 of the rope 4 and the straight portion of the rope 4. Although it was comprised so that a position change was possible to the state which exposed 41 to the exterior, it is not limited to this. That is, the second cover part 57 is not limited to the one provided with the first cover body 57a and the second cover body 57b. For example, as shown in FIG. 5, the second cover portion 57 is a single cover main body that covers the straight portion 41, and includes a cover main body 575 having an opening 575 a in a region where the straight portion 41 exists, and an opening 575 a. The lid body 576 is closed, and the position of the lid body 576 may be changed to switch between the state in which the straight portion 41 of the rope 4 is covered and the state in which the straight portion 41 of the rope 4 is exposed to the outside. . In this case, the lid 576 is rotatably connected to the cover main body 575 via a hinge or the like, and is provided so that the position can be changed (posture change) to a state where the opening 575a is closed and a state where the opening 575a is opened. It is preferred that

  In the said embodiment, the other 2nd cover part 57 is provided with the 1st cover body 57a and the 2nd cover body 57b, and the 2nd cover body 57b rotates with one end part as a rotation fulcrum, The straight in the rope 4 Although it was configured to change the position between the state where the portion 41 is covered and the state where the straight portion 41 of the rope 4 is exposed to the outside, the present invention is not limited to this. For example, as shown in FIG. 6, the second cover portion 57 includes two or more cover bodies 57 a and 57 b arranged in the extending direction of the straight portion 41 of the rope 4, and at least one of the cover bodies 57 a is the other By being provided so as to be slidable along the cover body 57b, the position may be changed between a state where the straight portion 41 of the rope 4 is covered and a state where the straight portion 41 of the rope 4 is exposed to the outside. Also in this case, it is preferable that the second cover portion 57 is provided so as to be rotatable (tilted) with respect to the first cover portion 55, and can be fixed at an arbitrary angle. That is, as in the above-described embodiment, the second cover portion 57 is rotatably connected to the first cover portion 55, and the second cover portion 57 is fixedly supported while allowing the posture of the second cover portion 57 to be changed. A support member 61 is preferably provided.

  In the above embodiment, the hoisting device 5 includes the deflector sheave 52, and the second cover portion 57 that covers one straight portion 41 spanned between the main sheave 50 and the deflector sheave 52 covers the straight portion 41 of the rope 4. However, the present invention is not limited to this, but can be switched to the state where the straight portion 41 of the rope 4 is exposed to the outside. For example, when the hoisting device 5 does not include the deflector sheave 52 (see, for example, FIG. 4), the second cover portion that covers the straight portion 41 that is connected to the turn portion 40 wound around the main sheave 50 and extends in the vertical direction. What is necessary is just to be comprised so that 56 and 57 can be switched to the state which covered the straight part 41 in the rope 4, and the state which exposed the straight part 41 in the rope 4 to the exterior.

  In the above embodiment, the second cover portion 57 is rotatably connected to the first cover portion 55 on the assumption that the deflector sheave 52 is provided so that the position of the deflector sheave 52 can be changed (position adjustment) in the lateral direction. Although it respond | corresponds to the inclination aspect of the straight part 41, it is not limited to this. For example, regardless of the presence or absence of the deflector sheave 52, the second cover portion 57 may be fixed so as to be maintained at a fixed position and in a fixed posture so as to keep the straight portion 41 of the rope 4 covered. (See FIG. 5).

DESCRIPTION OF SYMBOLS 1 ... Elevator, 2 ... Car, 3 ... Counterweight, 4 ... Rope, 5 ... Hoisting device (lifting device for elevators), 6 ... Rope cover (Rope cover for hoisting device), 10 ... Hoistway, 11 ... Area (machine room), 40 ... turn part, 41 ... straight part, 50 ... main sheave, 51 ... motor, 52 ... deflector sheave, 53 ... braking device, 54 ... machine base, 55 ... first cover part, 56,57 ... second cover part, 57a ... first cover body (cover body), 57b ... second cover body (cover body), 58 ... receiving member, 59 ... first hinge, 60 ... second hinge, 61 ... support member, 510: Motor case, 511 ... Drive shaft, 520 ... Bearing, 530 ... Disc rotor, 531 ... Brake caliper, 540 ... Main base, 541 ... Sub base, 550 ... First cover main body, 55 ... fixed part, 570a, 570b ... main body part, 571a, 571b ... side wall part, 575 ... cover main body, 575a ... opening part, 576 ... lid body, 590a, 590b ... first piece member, 591 ... first shaft, 600a, 600b ... second piece member, 601 ... second shaft, 610 ... cradle, 611 ... long hole, 612 ... male screw body (shaft body)

Claims (5)

A main sheave on which a rope that suspends a cage and a counterweight suspended in the hoistway is wound, and is provided in the hoistway of the building.
A motor that rotationally drives the main sheave;
A first cover portion covering the turn portion of the rope in contact with the main sheave from the outside;
A second cover portion that covers at least one of a pair of straight portions of a rope that is continuous with the turn portion and extends in a tangential direction with respect to the main sheave from the outside ;
A machine base connected to the structure of the building,
A receiving member disposed on the machine base in a slidable state in a vertical direction and a direction orthogonal to each of the rotation axes of the main sheave ,
The second cover portion includes one cover body arranged in the direction in which the straight portion of the rope extends and the other cover body disposed between the first cover portion and the one cover body,
One cover body and the other cover body are each configured to be capable of changing the position between a state where the straight portion of the rope is covered and a state where the straight portion of the rope is exposed to the outside .
The other cover body is provided so as to be fixed at a fixed position in a state of covering at least the straight portion of the rope, and is provided rotatably at one end adjacent to the first cover portion as a rotation fulcrum. It can be fixed at the rotation angle,
One cover body is rotatably provided with one end located on the side farther from the other cover body in the direction in which the straight portion of the rope extends, as a rotation fulcrum,
One end of the one cover body located on the side far from the other cover body is connected to the receiving member and can be repositioned in the vertical direction and in the direction orthogonal to the rotation axis of the main sheave.
An elevator hoist apparatus characterized by the above. Hand covering of the elevator hoist apparatus of Claim 1 which is configured to overlap the outer side of the other cover member while covering the ropes. With a deflector sheave arranged at a position shifted in the vertical direction and the direction perpendicular to the vertical direction with respect to the main sheave,
At least one straight portion of the pair of straight portions in the rope is spanned between the main sheave and the deflector sheave,
The two cover bodies constituting the second cover part cover the straight part in the rope spanned between the main sheave and the deflector sheave,
The two end portions of one of the cover member of the cover body, the elevator hoist apparatus according to a vertical direction and that is provided to be repositioned in a direction perpendicular <br/> claim 2. Whether it was provided to be movable in the vertical direction on the hoistway in the building,
A counterweight provided to be movable up and down in the hoistway;
A rope for suspending the car and the counterweight in the hoistway;
An elevator hoisting device including a main sheave around which a rope is wound and a motor that rotationally drives the main sheave, comprising the elevator hoisting device according to any one of claims 1 to 3. Elevator. A part of a rope that suspends a cage and a counterweight provided in the hoistway of the building so as to be movable in the vertical direction, and is wound around a main sheave that is rotated by the drive of a motor. A first cover portion covering the turn portion of the rope along the main sheave from outside;
A second cover portion that is a part of the rope and that covers at least one of a pair of straight portions of the rope continuous from the turn portion and extending tangentially to the main sheave from the outside;
The second cover portion includes one cover body arranged in the direction in which the straight portion of the rope extends and the other cover body disposed between the first cover portion and the one cover body,
One cover body and the other cover body are each configured to be capable of changing the position between a state where the straight portion of the rope is covered and a state where the straight portion of the rope is exposed to the outside .
The other cover body is provided so as to be fixed at a fixed position in a state of covering at least the straight portion of the rope, and is provided rotatably at one end adjacent to the first cover portion as a rotation fulcrum. It can be fixed at the rotation angle,
One cover body is rotatably provided with one end located on the side farther from the other cover body in the direction in which the straight portion of the rope extends, as a rotation fulcrum,
One end of the one cover body located on the side far from the other cover body is connected to the building structure in such a manner that it can slide in the vertical direction and in the direction perpendicular to the rotation axis of the main sheave. While being connected to the receiving member arranged on the base, the position can be changed in the vertical direction and the direction orthogonal to each of the rotation axes of the main sheave.
A rope cover for a hoisting device.