JP2018104117A - Elevator - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an elevator in which work is performed easily while securing safety at maintenance or inspection work.SOLUTION: The elevator comprises: a cage; a guide part which guides lifting and lowering of the cage; and a movement regulation mechanism which includes an engaging part provided on the cage and an engaged part engaging with the engaging part. The engaged part includes: an engaging base which is supported on the guide part; a through-hole which is formed on the engaging base and penetrates in a cross direction intersecting with a lifting direction of the cage; and an adjustment part which regulates movement of the engaging part. The engaging part moves along the cross direction and is capable of being set to the state of being inserted into the through-hole and the state of being out of the through-hole. The adjustment part covers an upper part of the through-hole and is supported on the engaging base so as to be movable to a position of contact with the engaging part which is inserted into the through-hole and a position of no contact with the engaging part which is inserted into the through-hole.SELECTED DRAWING: Figure 5

Description

  The present invention relates to an elevator, and is particularly suitable for application to an elevator having a mechanism for regulating dangerous movement of the elevator during maintenance or inspection work.

  Patent Document 1 describes a safety device for elevator maintenance personnel. This safety device comprises two rods. The two rods are movable to a drawing position that contacts a rail stopper fixed on the guide rail and a drawing position that does not contact the rail stopper. When an accident related to braking or contact occurs, the booth stops at a sufficient distance from the ceiling of the casing by the rod in the drawing position coming into contact with the rail stopper, so that the worker is protected.

Japanese Patent No. 4448494

  By the way, when carrying out elevator maintenance or inspection work, after restricting the movement of the car during work by engaging the stoppers fixed on the left and right guide rails with bar-like stopper pins installed on the car May start work.

  However, it is necessary to accurately adjust the position of the car to engage the stopper pins installed on the car with the stoppers fixed to the left and right guide rails.

  An object of the present invention is to provide an elevator capable of easily performing work while ensuring safety during maintenance or inspection work in consideration of the above-described problems.

  In order to solve the above-described problems and achieve the object of the present invention, an elevator according to the present invention includes a guide unit that guides the car and the raising / lowering of the car, an engaging part provided in the car, and an engaging part. A movement restricting mechanism having an engaged portion that engages with. The engaged portion includes an engagement base supported by the guide portion, a through-hole formed in the engagement base and penetrating in a crossing direction intersecting with the raising / lowering direction of the car, and an adjustment for restricting the movement of the engaging portion. The engaging portion moves along the crossing direction and can be set to a state inserted into the through hole and a state removed from the through hole. It covers the upper part and is supported by the engagement base so as to be movable between a position where it comes into contact with the engaging portion inserted into the through hole and a position where it does not come into contact with the engaging portion inserted into the through hole.

  According to the present invention, it is possible to easily perform work while ensuring safety during maintenance or inspection work.

It is a schematic structure figure of an elevator concerning an embodiment of the present invention. It is a top view of the elevator which concerns on embodiment of this invention. It is a front view of the 1st movement control mechanism concerning an embodiment of the present invention. It is a top view of the 1st movement control mechanism concerning an embodiment of the present invention. It is the figure which looked at the 1st to-be-engaged part which concerns on embodiment of this invention from the insertion direction of the stopper pin. It is a top view of the 1st to-be-engaged part which concerns on embodiment of this invention. It is the figure which looked at the 2nd to-be-engaged part which concerns on embodiment of this invention from the insertion direction of the stopper pin. It is a figure for demonstrating the effect | action of the elevator which concerns on embodiment of this invention, and shows the state which has an adjustment plate in a reference position. It is a figure for demonstrating the effect | action of the elevator which concerns on embodiment of this invention, and shows the state which moved the adjustment plate below. It is a figure for demonstrating the effect | action of the elevator which concerns on embodiment of this invention, and shows the state which moved the adjustment plate upwards.

  An elevator according to an embodiment of the present invention will be described with reference to FIGS. In addition, the same code | symbol is attached | subjected to the common member in each figure.

[Elevator configuration]
First, a schematic configuration of the elevator 1 according to the present embodiment will be described with reference to FIGS. 1 and 2. FIG. 1 is a schematic configuration diagram of an elevator in which a hoist according to an embodiment of the present invention is used. FIG. 2 is a top view of the elevator according to the embodiment of the present invention. In addition, in FIG. 2, illustration of the rope 5 mentioned later is abbreviate | omitted.

  As shown in FIG. 1 and FIG. 2, the elevator 1 is installed in a hoistway 3 formed in a building structure 2. The elevator 1 includes a car 4 on which people and luggage are placed, a counterweight (not shown), and a rope 5 that holds both of them.

  The elevator 1 includes a hoisting machine 6 (see FIG. 2) around which a rope 5 is wound. When the hoist 6 is driven, the rope 5 is driven, and accordingly, the car 4 and the counterweight move in the vertical direction in the hoistway 3, that is, move up and down.

  In addition, the elevator 1 includes a control panel 70 (see FIG. 2) that performs control of the lifting speed of the car 4, operation management control, and other necessary control. Here, the elevator 1 of the present embodiment is a so-called machine room-less elevator in which no machine room is provided. The control panel 70 and the hoisting machine 6 are fixed to a beam or the like that the building structure 2 has, and are disposed at the upper part of the hoistway 3. In the following description, one direction on the horizontal plane in the hoistway 3 is referred to as the X direction, and a direction orthogonal to the X direction on the same horizontal plane is referred to as the Y direction. A lifting direction (vertical direction) in which the car 4 moves up and down in the hoistway 3 is referred to as a Z direction.

  The elevator 1 includes two guide rails 7 extending in the vertical direction in the hoistway 3. The two guide rails 7 are installed at a predetermined distance so as to face each other with the car 4 interposed therebetween.

  The guide rail 7 has a rail base portion 7a that is a substantially flat plate-like member. The rail base portion 7a includes a rail inner surface 7b that is a plane that is orthogonal to the X direction and faces the car 4, and a rail outer surface 7c that is a plane opposite to the rail inner surface 7b. A rail protrusion 8 that protrudes along the X direction toward the car 4 is formed at a substantially central portion in the Y direction of the rail inner surface 7b.

  A first engaged portion 50, which is a component of the first movement restriction mechanism 9a, is fixed to the rail base portion 7a of the guide rail 7 that is positioned on the right side when the car 4 is viewed from the front. A second engaged portion 51, which is a constituent member of the second movement restriction mechanism 9b, is fixed to the rail base portion 7a of the guide rail 7 that is located on the left side when the car 4 is viewed from the front. Details of the first movement restriction mechanism 9a, the second movement restriction mechanism 9b, the first engaged portion 50, and the second engaged portion 51 will be described later.

  The car 4 includes a car room 10 that is formed in a hollow, substantially rectangular parallelepiped shape, and a car frame 11 that has a substantially square frame shape that surrounds the car room 10. The car room 10 is arranged such that the front-rear direction coincides with the Y direction and the left-right direction coincides with the X direction. On the front surface of the car room 10, a door 12 is installed so as to be openable and closable.

  The car frame 11 has a lower frame 13, an upper frame 14, and two vertical frames 15. The lower frame 13 extends in the X direction below the cab 10. The lower surface of the cab 10 is fixed to the lower frame 13. A pulley 16 around which the rope 5 is wound is provided at the lower part of both ends of the lower frame 13 in the X direction.

  A lower guide portion 17 is provided in front of each pulley 16 in the lower frame 13. A groove (not shown) into which the rail protrusion 8 of the guide rail 7 is inserted is formed in the lower guide portion 17.

  The two vertical frames 15 are erected upward from both ends of the lower frame 13 in the X direction. The upper frame 14 extends in the X direction above the cab 10. Both ends of the upper frame 14 in the X direction are fixed to the upper ends of the two vertical frames 15.

  As shown in FIG. 2, the upper frame 14 includes an upper surface portion 20 formed in a substantially rectangular flat plate shape. The upper surface portion 20 is arranged so that the longitudinal direction thereof coincides with the X direction and the short side direction thereof coincides with the Y direction. Upper guide portions 21 are provided on both ends of the upper surface portion 20 in the longitudinal direction, that is, in the X direction via brackets (not shown). The upper guide portion 21 is formed with a groove into which the rail protrusion 8 of the guide rail 7 is inserted. Since the rail protrusions 8 of the guide rail 7 are inserted into the grooves of the upper guide portion 21 and the lower guide portion 17, the car 4 is guided by the guide rail 7 and moves up and down.

  The short side direction of the upper surface portion 20, that is, both end portions in the Y direction are bent downward to form a front surface portion 22 and a rear surface portion 23 having a plane orthogonal to the Y direction. The front surface portion 22 is disposed on the front side of the cab 10 with respect to the rear surface portion 23.

  A stopper pin unit 30 that is a constituent member of the first movement restriction mechanism 9a is fixed to the right end portion of the front surface portion 22 in the X direction. Further, a stopper pin unit 31 that is a constituent member of the second movement restricting mechanism 9b is fixed to the left end portion of the front surface portion 22 in the X direction. The details of the first movement restriction mechanism 9a, the second movement restriction mechanism 9b, and the stopper pin units 30 and 31 will be described later.

[Movement restriction mechanism]
Next, the movement restriction mechanism in the present embodiment will be described with reference to FIGS. The elevator 1 of the present embodiment is provided with a first movement restriction mechanism 9a and a second movement restriction mechanism 9b as movement restriction mechanisms. FIG. 3 is a front view of the first movement restriction mechanism according to the present embodiment. FIG. 4 is a top view of the first movement restricting mechanism according to the present embodiment. FIG. 5 is a view of the first engaged portion according to the present embodiment as viewed from the insertion direction of the stopper pin. FIG. 6 is a top view of the first engaged portion according to the present embodiment. FIG. 7 is a view of the second engaged portion according to the present embodiment as viewed from the insertion direction of the stopper pin.

[Movement restriction mechanism: Stopper pin unit]
First, the stopper pin units 30 and 31 in the first movement restriction mechanism 9a and the second movement restriction mechanism 9b in the present embodiment will be described. The stopper pin unit 31 provided in the second movement restriction mechanism 9b is configured to be bilaterally symmetrical to the stopper pin unit 30 provided in the first movement restriction mechanism 9a. Therefore, in the following description, the configuration of the stopper pin unit 30 will be described, and the description of the configuration of the stopper pin unit 31 will be omitted.

  As shown in FIGS. 3 and 4, the stopper pin unit 30 includes a stopper pin 32 and a support portion 33 that supports the stopper pin 32. The stopper pin 32 is a round bar-like member, and is supported by the support portion 33 so as to be movable along the direction intersecting the up-and-down direction (vertical direction) of the car 4, in this embodiment, the X direction. The stopper pin 32 is supported by the support portion 33 so as to be rotatable about the axis.

  At the time of maintenance or inspection work of the elevator 1, one end portion of the stopper pin 32 engages with the first engaged portion as will be described later. A locking pin 34 is formed near the other end of the stopper pin 32 so as to protrude in the radial direction from the outer peripheral surface.

  The support part 33 includes a first support part 35 and a second support part 36. The first support part 35 includes a flat locking plate part 37 and a first fixed plate part 38. The rear surface of the locking plate portion 37 (the rear surface of the car chamber 10) and the front surface of the first fixed plate portion 38 (the front surface of the car chamber 10) face each other in the Y direction. The first support portion 35 includes a flat lower surface portion 39 that is continuous with the lower end portions of the locking plate portion 37 and the first fixed plate portion 38 and forms the bottom surface of the first support portion 35.

  The first fixed plate portion 38 is fixed to the front surface portion 22 of the upper frame 14 by bolt fastening. The locking plate portion 37 is formed with a first locking hole 37a and a second locking hole 37b penetrating in the Y direction. The first locking hole 37a and the second locking hole 37b are formed by cutting out from the upper end portion of the locking plate portion 37 to a substantially central portion in the Z direction (vertical direction). In addition, the first locking hole 37a and the second locking hole 37b are formed at a predetermined distance in the X direction, and the first locking hole 37a is closer to the cab 10 than the second locking hole 37b. Arranged inside. The locking pin 34 of the stopper pin 32 is inserted into the first locking hole 37a and the second locking hole 37b.

  The second support part 36 has a flat second fixing plate part 40. The second fixed plate portion 40 has one surface 40 a orthogonal to the Y direction and the other surface 40 b on the opposite side, and the other surface 40 b is in contact with the front surface portion 22 of the upper frame 14. The second fixed plate portion 40 is fixed to the front surface portion 22 by bolt fastening.

  At both ends in the X direction of the second fixed plate portion 40, a first support plate portion 41 and a second support plate portion 42 extending along the Y direction on the one surface 40a side (the front side of the car room 10) are formed. . The first support plate portion 41 is disposed more inside the cab 10 than the second support plate portion 42. The first support plate portion 41 is in contact with the outer end portion in the X direction of the first support portion 35 (the locking plate portion 37, the first fixed plate portion 38, and the lower surface portion 39).

  The 1st support plate part 41 and the 2nd support plate part 42 are formed in flat form, and each inner surface opposes an X direction. Further, a support hole 43 into which the stopper pin 32 is inserted is formed in the center portion. When the stopper pin unit 30 is assembled, one end of the stopper pin 32 (the end opposite to the side where the locking pin 34 is formed) is connected to the first support plate 41 from the first support 35 side. The support holes 43 and the support holes 43 of the second support plate portion 42 are inserted in this order. As a result, the stopper pin 32 is supported at a location that partitions the support holes 43 of the first support plate portion 41 and the second support plate portion 42.

  As described above, the stopper pin 32 supported by the first support plate portion 41 and the second support plate portion 42 is movable along the X direction and is rotatable about the axis. When the locking pin 34 of the stopper pin 32 is locked in the first locking hole 37a or the second locking hole 37b of the locking plate portion 37, the movement of the stopper pin 32 in the X direction is restricted.

  During normal operation of the elevator 1, the locking pin 34 is locked in the first locking hole 37a. At this time, one end of the stopper pin 32 (the end opposite to the side where the locking pin 34 is formed) interferes with other members in the hoistway 3 and does not interfere with the raising / lowering of the car 4. Further, it slightly protrudes from the support hole 43 of the second support plate portion 42. However, since the movement of the stopper pin 32 in the X direction is restricted, one end portion of the stopper pin 32 is prevented from further protruding from the support hole 43 of the second support plate portion 42 while the car 4 is raised and lowered. . For this reason, it can suppress that the stopper pin 32 moves and interferes with the other member in the hoistway 3.

  On the other hand, at the time of maintenance or inspection work of the elevator 1, the operator removes the locking pin 34 locked to the first locking hole 37a from the first locking hole 37a. Specifically, the operator rotates the stopper pin 32 about 90 degrees around the axis so that the position of the locking pin 34 moves upward.

  Next, the worker moves the stopper pin 32 toward the first engaged portion 50 along the X direction, and engages the stopper pin 32 with the first engaged portion 50. Then, the worker locks the locking pin 34 in the second locking hole 37b. Specifically, the operator rotates the stopper pin 32 about 90 degrees around the axis so that the locking pin 34 is inserted into the second locking hole 37b. As a result, the movement of the stopper pin 32 in the X direction is restricted, so that the stopper pin 32 is prevented from moving and being disengaged from the first engaged portion 50 during maintenance or inspection work. it can. In addition, the engagement aspect of the stopper pin 32 and the 1st to-be-engaged part 50 is mentioned later.

[Movement restriction mechanism: first engaged portion]
Next, the 1st to-be-engaged part 50 in the 1st movement control mechanism 9a in this embodiment is demonstrated with reference to FIG.5 and FIG.6. FIG. 5 is a view of the first engaged portion according to the present embodiment as viewed from the insertion direction of the stopper pin. FIG. 6 is a top view of the first engaged portion according to the present embodiment. In FIG. 5, the right side is the front side of the cab 10 and the left side is the rear side of the cab 10.

  The first engaged portion 50 is fixed to the upper part of the guide rail 7 arranged on the right side when the cab 10 is viewed from the front (see FIG. 1), and the hoisting machine arranged at the upper part of the hoistway 3 6 and in the vicinity of the control panel 70. As shown in FIGS. 5 and 6, the first engaged portion 50 includes a first engagement base 52, an adjustment plate 53, and a plurality of clip members 54. The first engagement base 52 is a flat plate-like member, and has a base inner surface 52a that is a plane orthogonal to the X direction and a base outer surface 52b that is the opposite plane.

  The base inner surface 52a on the one end side in the Y direction of the first engagement base 52 (the rear end side on the cab 10) is in contact with the rail outer surface 7c of the rail base portion 7a in the guide rail 7. The clip member 54 is bolted to the first engagement base 52 and includes a portion that covers an outer edge portion in the Y direction of the rail base portion 7a. The first engagement base 52 is fixed to the rail base portion 7 a via the clip member 54.

  The other end side in the Y direction of the first engagement base 52 (the end side on the front side of the car room 10) is in a direction intersecting the up-and-down direction (vertical direction) of the car 4, in the X direction in this embodiment. A long hole 55 is formed therethrough. The long hole 55 is formed in a vertically long shape in the vertical center of the first engagement base 52 in the vertical direction of the car 4. The length of the long hole 55 in the width direction (Y direction) is set to be slightly larger than the diameter of the stopper pin 32. The stopper pin 32 is inserted into the long hole 55 during maintenance or inspection work of the elevator 1. Two bolt holes (not shown) are formed at a predetermined distance above the elongated hole 55 in the first engagement base 52.

  An adjustment plate 53 is fixed above the elongated hole 55 in the first engagement base 52 so as to be movable in the vertical direction. The adjustment plate 53 is a substantially rectangular flat plate-like member, and has a plate inner surface 53a that is a plane orthogonal to the X direction and a plate outer surface 53b that is the opposite plane. The plate outer surface 53b of the adjustment plate 53 fixed to the first engagement base 52 is in contact with the base inner surface 52a of the first engagement base.

  The adjustment plate 53 is formed with two adjustment holes 56 penetrating in the X direction. The adjustment hole 56 is formed in a vertically long shape along the vertical direction. The adjustment hole 56 communicates with a bolt hole (not shown) formed in the first engagement base 52. The adjustment plate 53 is supported on the first engagement base 52 by bolts and nuts inserted into the adjustment holes 56 and the bolt holes of the first engagement base 52.

  The adjustment hole 56 is formed in the adjustment plate 53 at a position where the lower end portion of the adjustment plate 53 and the upper edge portion of the long hole 55 overlap when the adjustment plate 53 is fixed by inserting a bolt into the lower end portion of the adjustment hole 56. So that it is set. When the nut fastened to the bolt is loosened, the adjustment plate 53 can move in the vertical direction according to the vertical length of the adjustment hole 56. In addition, when the adjustment plate 53 is fixed by inserting a bolt into the lower end portion of the adjustment hole 56, the lower end portion of the adjustment plate 53 is the upper edge portion of the long hole 55. You may set so that it may be located above.

  The length of the adjustment hole 56 in the Z direction (length in the vertical direction) is such that the adjustment plate 53 can be moved to a position where the lower end of the adjustment plate 53 contacts the stopper pin 32 inserted into the lower end of the long hole 55. It is set so that. That is, in the present embodiment, the adjustment plate 53 has a position where its lower end overlaps with the upper edge of the long hole 55 and a position where its lower end contacts the stopper pin 32 inserted into the lower end of the long hole 55. Can be moved in the Z direction (vertical direction).

[Movement restriction mechanism: second engaged portion]
Next, the 2nd to-be-engaged part 51 in the 2nd movement control mechanism 9b in this embodiment is demonstrated with reference to FIG.2 and FIG.7. FIG. 7 is a view of the second engaged portion according to the present embodiment as viewed from the insertion direction of the stopper pin. In FIG. 7, the left side is the front side of the cab 10 and the right side is the rear side of the cab 10.

  As shown in FIGS. 2 and 7, the second engaged portion 51 includes an adjustment plate 53, a second engagement base 57, and a plurality of clip members 54. In the second engaged portion 51 and the first engaged portion 50, the shapes of the second engaging base 57 of the second engaged portion 51 and the first engaging base 52 of the first engaged portion 50 are the same. The same except for the difference. For this reason, in the following description, the same code | symbol is attached | subjected about the structure similar to the 1st to-be-engaged part 50, and the description is abbreviate | omitted.

  The second engaged portion 51 is fixed to the upper portion of the left guide rail 7 when the cab 10 is viewed from the front (see FIGS. 1 and 2), and the hoisting machine disposed at the upper portion of the hoistway 3 6 and in the vicinity of the control panel 70. The second engagement base 57 includes a first bracket part 58, a second bracket part 59, and a connecting part 60. The first bracket portion 58 is a substantially flat plate-like member, and is fixed to the rail base portion 7 a via the clip member 54. In addition, a bent portion 61 formed by being bent in a direction away from the car chamber 10 is provided at one end portion of the first bracket portion 58 in the Y direction (the front end portion of the car chamber 10).

  The second bracket portion 59 is spaced a predetermined distance below the first bracket portion 58 and is fixed to the rail base portion 7 a via the clip member 54 in the same manner as the first bracket portion 58. In addition, a bent portion 62 formed by being bent in a direction away from the car chamber 10 is provided at one end portion in the Y direction of the second bracket portion 59 (an end portion on the front side of the car chamber 10).

  The connecting portion 60 is a vertically long flat plate-like member extending in the Z direction (vertical direction), the upper end portion is fixed to the bent portion 61 of the first bracket portion 58, and the lower end portion is bent to the second bracket portion 59. It is fixed to the part 62. The connecting portion 60 has a plane orthogonal to the X direction and facing the car room 10 and a plane on the opposite side. A long hole 55 penetrating in the X direction is formed in the connecting portion 60. An adjustment plate 53 is fixed to the connecting portion 60 so as to be movable in the vertical direction. The second engaged portion 51 is arranged so that the formation position of the long hole 55 of the first engaged portion 50 and the formation position of the long hole 55 of the second engaged portion 51 are horizontal. ing.

[Action]
Next, the effect | action of the elevator 1 in this embodiment is demonstrated with reference to FIGS. FIG. 8 is a view for explaining the operation of the elevator according to the present embodiment, and shows a state in which the adjustment plate is at the reference position. FIG. 9 is a view for explaining the operation of the elevator according to the present embodiment, and shows a state in which the adjustment plate is moved downward. FIG. 10 is a view for explaining the operation of the elevator according to the present embodiment, and shows a state where the adjustment plate is moved upward.

  When the machine room is not provided and the control panel 70 and the hoisting machine 6 are arranged above the hoistway 3 as in the elevator 1 of the present embodiment, the maintenance of the control panel 70 and the hoisting machine 6 or The worker who performs the inspection work generally gets on the inside of the cab 10 or the ceiling of the cab 10 to perform the work.

  This dangerous movement must be prevented by mechanical devices so that the elevator 1 (the car 4) does not cause uncontrollable or unpredictable dangerous movements during work. In the elevator 1 of this embodiment, the 1st movement control mechanism 9a and the 2nd movement control mechanism 9b are employ | adopted as this mechanical apparatus.

  First, prior to the work, as shown in FIG. 8, the worker places the adjustment plate 53 of the second movement restriction mechanism 9 b covering the upper third of the long hole 55 (hereinafter referred to as “reference position” in some cases). It is arranged in a certain). Although not shown, the adjustment plate 53 is similarly arranged at the reference position for the first movement restriction mechanism 9a.

  At the start of work, the worker operates the elevator 1 and moves the car 4 to the upper part of the hoistway 3 where the hoisting machine 6 and the control panel 70 are arranged. The worker then sets the position of the car 4 at a position where the stopper pin 32 of the first movement restriction mechanism 9a can be inserted into the elongated hole 55 of the first engaged portion 50, and at the position of the second movement restriction mechanism 9b. The stopper pin 32 is adjusted to a position where it can be inserted into the elongated hole 55 of the second engaged portion 51.

  Next, the worker inserts the stopper pin 32 into the elongated hole 55 of the first engaged portion 50 of the first movement restriction mechanism 9a. Further, the stopper pin 32 is inserted into the elongated hole 55 of the second engaged portion 51 of the second movement restriction mechanism 9b.

  Here, as shown in FIG. 8, when there is a gap between the stopper pin 32 inserted into the long hole 55 and the lower end portion of the adjustment plate 53, the car 4 is released by releasing the brake of the hoisting machine 6 in the work. When it rises, the stopper pin 32 collides with the lower end of the adjustment plate 53. For this reason, an impact load acts on the second engagement base 57 that supports the adjustment plate 53, and the fixing position of the second engagement base 57 may be shifted. In addition, the stopper pin 32 and the adjustment plate 53 may become tight due to the deviation, and the stopper pin 32 cannot be pulled out from the long hole 55 at the end of the work, that is, the normal operation of the elevator 1 may not be resumed. is there.

  Therefore, as shown in FIG. 9, the operator loosens the bolt that fixes the adjustment plate 53 to make it movable, and moves the adjustment plate 53 downward. Then, the worker fixes the adjustment plate 53 to the second engagement base 57 at a position where the lower end portion of the adjustment plate 53 contacts the stopper pin 32. Although not shown in the drawings, the fixing position of the adjustment plate 53 is similarly adjusted when there is a gap between the first movement restriction mechanism 9a and the lower end of the adjustment plate 53.

  Thereby, the movement of the car 4 during the maintenance or inspection work can be restricted, and the safety of the work can be ensured. Further, even when the brake of the hoisting machine 6 is released, the stopper pin 32 does not collide with the adjustment plate 53, and it is possible to prevent the impact load from acting on the second engagement base 57 that supports the adjustment plate 53. . For this reason, the fixing position of the first engagement base 52 or the second engagement base 57 that supports the adjustment plate 53 is prevented from being displaced, and the stopper pin 32 and the adjustment plate 53 are stiff due to this displacement. Can be prevented.

  By the way, when the adjustment plate 53 is not provided and the same effect as described above is to be obtained, it is necessary to accurately adjust the position of the car 4 at the start of the work. Specifically, the operator can contact the positions where the stopper pins 32 of the two movement restricting mechanisms define the upper end portions of the long holes 55 of the first engagement base 52 and the second engagement base 57. Next, the car 4 needs to be moved. In the following description, the position of the car 4 at which the stopper pin 32 can come into contact with the portion that defines the upper ends of the long holes 55 of the first engagement base 52 and the second engagement base 57 is referred to as an “ideal position”. There is a case.

  However, when the position of the long hole 55 of the first engagement base 52 does not correspond to the position of the long hole 55 of the second engagement base 57 (not horizontal), or when the car 4 is tilted, It may be difficult to move the car 4 to the ideal position. Moreover, since it is difficult to raise and lower the car 4 slightly, it is expected that it takes time to adjust the position of the car 4.

  Compared to this, in the elevator 1 of the present embodiment provided with the adjustment plate 53, the operator uses the car 4 and the stopper pins 32 of the two movement restricting mechanisms 9a and 9b are connected to the first engaging base 52, What is necessary is just to move to the position which can be inserted in the long hole 55 in the 2nd engagement base 57. FIG. That is, since the operator does not need to move the car 4 to the ideal position, the labor of adjusting the position of the car 4 can be saved greatly. Further, since the long hole 55 is formed in a vertically long shape, the car 4 can be easily moved to a position where the stopper pin 32 can be inserted into the long hole 55.

  Even when the position of the long hole 55 of the first engagement base 52 and the position of the long hole 55 of the second engagement base 57 do not correspond to each other or when the car 4 is inclined, The position of the adjustment plate 53 can be adjusted, and each stopper pin 32 can be reliably brought into contact.

  By the way, when there is a brake release in maintenance or inspection work, and the car 4 whose movement is restricted rises slightly, a load acts on the stopper pin 32 engaged with the adjustment plate 53, and the stopper The pin 32 may be bent and deformed. For example, there is a possibility that the end of the stopper pin 32 on the side inserted into the long hole 55 is bent so as to be positioned below the end on the opposite side. In this case, it is conceivable that it becomes difficult to release the stopper pin 32 from the elongated hole 55 by releasing the engagement between the stopper pin 32 and the adjustment plate 53 at the end of the work.

  However, in the elevator 1 of the present embodiment, as shown in FIG. 10, by moving the adjustment plate 53 upward, the engagement between the stopper pin 32 and the adjustment plate 53 is released, and the stopper pin 32 is bent and deformed. It is possible to return to the state where there is no. For this reason, it becomes easy to pull out the stopper pin 32 from the long hole 55, and the normal operation of the elevator 1 can be easily restarted.

  In addition, after pulling out the stopper pin 32 from the long hole 55, an operator arrange | positions and fixes the adjustment plate 53 in the above-mentioned reference | standard position (refer FIG. 8). Then, normal operation of the elevator 1 is resumed.

<Modification>
The present invention is not limited to the above embodiment, and various modifications can be made without departing from the scope of the present invention.

  For example, although the aspect which employ | adopts the 1st engagement base 52 and the 2nd engagement base 57 as a member which fixes the adjustment plate 53 was demonstrated, you may use only any one. That is, two first engagement bases 52 may be used, or two second engagement bases 57 may be used. Moreover, if the long hole 55 is formed and the adjustment plate 53 can be fixed so that a movement to an up-down direction is possible, the aspect of the member which fixes the adjustment plate 53 will be in the range which does not interfere with the building structure 2 or the other structural member of the elevator 1. It can be changed as appropriate.

  Moreover, although the aspect which formed the adjustment plate 53 in the substantially rectangular flat plate shape was demonstrated, the shape of the adjustment plate 53 can be changed suitably. Further, the movable range of the adjustment plate 53 can be set as appropriate. For example, the range in which the adjustment plate 53 is movable, the position where the adjustment plate 53 covers the center of the elongated hole 55 in the vertical direction, and the lower end of the adjustment plate 53 is the length of the first engagement base 52 or the second engagement base 57. You may set between the position which overlaps the location which divides the upper end part of the hole 55. FIG.

  Moreover, although the aspect which set the reference position of the adjustment plate 53 to the position which covers the upper part 1/3 of the long hole 55 was demonstrated, the reference position is a stopper pin in the location which is not covered with the adjustment plate 53 of the long hole 55. If 32 can be inserted, it can be appropriately changed.

  Moreover, although the aspect which formed the two adjustment holes 56 in the adjustment plate 53 was demonstrated, the number of the adjustment holes 56 can be changed suitably. For example, one or three adjustment holes may be formed for one adjustment plate 53.

  Moreover, although the elevator 1 of this embodiment is a so-called machine room-less elevator in which no machine room is provided, the present invention is also applicable to an elevator in which a machine room is provided. Further, the first movement restriction mechanism 9a and the second movement restriction mechanism 9b may be provided at both ends of the lower frame 13 in the X direction instead of being provided at both ends of the upper frame 14 in the X direction.

  DESCRIPTION OF SYMBOLS 1 ... Elevator, 2 ... Building structure, 3 ... Hoistway, 6 ... Hoisting machine, 7 ... Guide rail, 9a ... 1st movement control mechanism, 9b ... 2nd movement control mechanism, 10 ... Car room, 11 ... Car Frame, 14 ... Upper frame, 22 ... Front part 30 ... Stopper pin unit, 31 ... Stopper pin unit, 32 ... Stopper pin, 33 ... Support part, 34 ... Locking pin, 35 ... First support part, 36 ... Second Support part 37 ... Locking plate part 37a ... First locking hole 37b ... Second locking hole 41 ... First support plate part 42 ... Second support plate part 43 ... Support hole 50 ... First DESCRIPTION OF SYMBOLS 1 Engagement part, 51 ... 2nd engagement part, 52 ... 1st engagement base, 53 ... Adjustment plate, 55 ... Long hole, 56 ... Adjustment hole, 57 ... 2nd engagement base, 70 ... Control board

Claims (3)

The car,
A guide portion for guiding the raising and lowering of the car;
An elevator comprising an engagement portion provided on the car, and a movement restriction mechanism having an engaged portion that engages with the engagement portion,
The engaged portion includes an engagement base supported by the guide portion, a through hole formed in the engagement base and penetrating in a crossing direction that intersects with the lifting / lowering direction of the car, and the engagement portion An adjustment unit that regulates movement,
The engaging portion moves along the intersecting direction and can be set to a state inserted into the through hole and a state detached from the through hole.
The adjusting portion covers an upper portion of the through hole and is movable to a position where the adjusting portion is in contact with the engaging portion inserted into the through hole and a position where the adjusting portion is not in contact with the engaging portion inserted into the through hole. The elevator is supported by the engagement base. 2. The elevator according to claim 1, wherein the through hole is formed in a vertically long shape along an ascending / descending direction of the car. The car has a box-shaped car room and a square frame-shaped frame part surrounding the car room,
The frame portion includes a lower frame portion extending downward from the cab, two side frame portions extending upward from both ends in the extending direction of the lower frame portion, and extending upward from the cab. Each of both ends in the present direction has an upper frame portion connected to each upper end portion of the two side frame portions,
The movement restricting mechanisms are respectively provided at both end portions in the extending direction of the upper frame portion,
The engaging portion has a stopper pin formed in a rod shape,
The adjustment portion is formed in a flat plate shape and has an adjustment hole formed in a vertically long shape along the raising / lowering direction of the car, and can be moved vertically to the engagement base by a fixing member penetrating the adjustment hole. The elevator according to claim 2, wherein the elevator is supported by the elevator.

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