Storage box

Abstract

To provide an elevator capable of reducing the labor required for maintenance and inspection work. [Solution] The storage box 42 comprises a box body 44 in which a first storage area P1 and a second storage area P2 for storing electronic devices are arranged side by side, and which is provided with long grooves LM1 (see Figure 4) and LM2 extending in the vertical direction; a first cover 50 which covers the first storage area P1 and has a slide part 56 configured to be movable within the long groove, exposing the first storage area P1 by moving downward via the slide part; and a second cover 60 which covers the second storage area P2 and has a slide part 66 configured to be movable within the long groove, exposing the second storage area P2 by moving downward via the slide part; when the first cover 50 moves downward from a state covering the first storage area P1, the slide part 56 moves forward within the long groove, causing the first cover 50 to displace downward in a state where it protrudes forward of the second cover 60.

Description

[Technical Field]

[0001] The present invention relates to an elevator, and more particularly to a storage box for storing equipment that is installed in an elevator hoistway and that is subject to maintenance and inspection. [Background technology]

[0002] Some elevators have maintenance-inspection-required equipment installed in the pit (bottom) of the elevator shaft, such as electronic devices that control the operation of the elevator car. This maintenance-inspection-required equipment needs to be inspected during maintenance inspections, but if the pit is flooded by heavy rain or other causes, the electronic devices will be submerged, posing a problem of requiring a great deal of effort for subsequent restoration work.

[0003] On the other hand, if the equipment to be inspected is installed in a position higher than the pit in the elevator shaft, the maintenance worker will have to carry out the inspection work while standing on top of the car. For this reason, for example, when removing the cover of the storage box to inspect the equipment to be inspected, it becomes necessary to temporarily place the removed cover on top of the car, where the working space is limited, which poses a problem in terms of workability.

[0004] However, since various equipment and facilities must be placed within the elevator shaft while avoiding the area where the car ascends and descends, the space available for installing the storage box is limited. For this reason, some storage boxes are configured, for example, as a roughly vertically long box with two openable covers at the top and bottom, so that maintenance workers can perform various tasks on the equipment to be maintained and inspected by opening the covers.

[0005] In this regard, Patent Document 1 discloses a control device main body (storage box) 1 that has an upper pivoting door 2 and a lower sliding and pivoting door 3 arranged above and below, and that opens by pivoting the lower sliding and pivoting door 3 left and right when it does not interfere with a safety fence installed on the car, and opens by sliding the door 3 downward when it does interfere with the safety fence. [Prior art documents] [Patent documents]

[0006] [Patent Document 1] Japanese Patent Application Laid-Open No. 2007-106512 Summary of the Invention [Problem to be solved by the invention]

[0007] In the storage box described in Patent Document 1, although the lower portion can be slid up and down via the lower sliding door / rotating door 3, the upper rotating door 2 can only be opened left and right, which poses a problem that, for example, if a safety fence installed on the car is nearby, the upper rotating door 2 cannot be opened because it is obstructed by the safety fence. For this reason, when it is necessary to open the upper rotating door 2, it is necessary to first lower the car to a position where there are no objects such as safety fences that obstruct the opening and closing of the door 2, and then open or close the door 2, which poses a problem that the workload for maintenance and inspection work is likely to increase.

[0008] The present invention provides an elevator that can reduce the labor required for maintenance and inspection work. [Means for solving the problem]

[0009] The storage box of the present invention is a storage box for storing maintenance and inspection items installed in an elevator hoistway, and comprises a box body in which a first storage area and a second storage area for storing the maintenance and inspection items are arranged side by side, and in which long grooves extending in the vertical direction are provided on both left and right side surfaces; a first cover part that covers the first storage area and has a first slide part configured to be movable within the long groove and is configured to expose the first storage area by moving downward via the first slide part; and a second cover part that covers the second storage area and has a second slide part configured to be movable within the long groove and is configured to expose the second storage area by moving downward via the second slide part, and when the first cover part moves downward from a state covering the first storage area, the first slide part is guided forward within the long groove and is displaced downward in a state where it protrudes forward of the second cover part.

[0010] In the storage box of the present invention, the first slide portions may be provided at both ends on the upper end side of the first cover portion.

[0011] In the storage box of the present invention, the second slide portions may be provided at both ends on the upper end side of the second cover portion.

[0012] In the storage box of the present invention, the long grooves may be provided on both the left and right side surfaces and facing outward. [Effects of the Invention]

[0013] According to the storage box of the present invention, when the first cover part moves downward, the first slide part moves forward, so that the first cover part can be displaced downward in a state where it protrudes forward more than the second cover part. This makes it possible to simultaneously expose both the first storage area and the second storage area by displacing both the first cover part and the second cover part through sliding movement.

[0014] As a result, it is possible to prevent other components, such as equipment placed in the elevator shaft, from interfering with the opening and closing of both cover sections, thereby reducing the amount of work required for maintenance and inspection. [Brief explanation of the drawings]

[0015] [Figure 1] FIG. 1 is a diagram showing a schematic configuration of an elevator including a control unit to which a storage box according to one embodiment of the present invention is applied. [Figure 2] 2(a) is a front view showing the overall configuration of the control unit included in FIG. 1, FIG. 2(b) is a diagram showing the configuration of the first cover included in FIG. 2(a), and FIG. 2(c) is a partially enlarged view showing the positional relationship between the fixing holes and bolts when the first cover included in FIG. 2(a) is pulled up. [Figure 3] 3(a) is a right side view of the storage box included in FIG. 2(a), and FIG. 3(b) is an enlarged view of a part of the right side of the box body included in FIG. 3(a). [Figure 4] FIG. 4 is a cross-sectional view showing the sectional configuration of the periphery of the slide parts arranged on both the left and right sides when cut along the line AA shown in FIG. 3(a). [Figure 5] Figure 5(a) is a partially enlarged view showing the configuration around the slide section on the right side when the first cover is pulled slightly upward from the position covering the top of the opening and pulled forward, Figure 5(b) is a view showing the configuration around the slide section when the first cover is lowered slightly from the position shown in Figure 5(a), and Figure 5(c) is a view showing the configuration around the slide section when the first cover is further lowered from the position shown in Figure 5(b) to cause the cover to protrude forward. [Figure 6] Figure 6(a) is a cross-sectional view schematically showing the positional relationship between the slide portion and the regulating member within the long groove in the state shown in Figure 5(b), and Figure 6(b) is a cross-sectional view schematically showing the positional relationship between the slide portion and the regulating member in the state shown in Figure 5(c). [Figure 7] Figure 7(a) is a front view of the storage box with only the second cover open, and Figure 7(b) is a right side view of the storage box as seen from the right side in the state shown in Figure 7(a). [Figure 8]Figure 8(a) is a front view of the storage box with the first cover further opened from the state shown in Figure 7(a), and Figure 8(b) is a right side view of the storage box as seen from the right side in the state shown in Figure 8(a). [Figure 9] Figure 9(a) is a front view of the storage box with only the first cover open, and Figure 9(b) is a right side view of the storage box as seen from the right side in the state shown in Figure 9(a). DETAILED DESCRIPTION OF THE INVENTION

[0016] An elevator 10 including a control unit to which a storage box according to one embodiment of the present invention is applied will be described below with reference to the drawings. In each drawing, the horizontal direction perpendicular to the axial direction of the sheave 11 of the hoisting machine 30 will be referred to as the left-right direction X, the vertical direction as the up-down direction Y, and the horizontal direction parallel to the axial direction of the sheave 11 as the front-rear direction Z, as appropriate.

[0017] Fig. 1 is a diagram showing the overall configuration of an elevator 10. As shown in Fig. 1, the elevator 10 includes a car 16 and a counterweight 18 suspended movably in an up-and-down direction within a hoistway 14 via a steel main rope 12, and a hoisting machine 30.

[0018] In the elevator 10 of this embodiment, the main rope 12 is stretched so that the speed ratio (roping ratio) between the hoisting speed of the sheave 11 in the hoisting machine 30 and the ascent / descent speed of the car 16 is 2:1. Specifically, one end of the main rope 12 is fixed via a hitch (fixing device) 22 to a support frame 20 provided near the ceiling of the hoistway 14, and the main rope 12 hangs down directly downward and spans a pair of under-car pulleys 16A, 16B provided at the bottom of the car 16, the hoisting machine 30 near the ceiling of the hoistway 14, and a pulley 18A provided above the counterweight 18, in this order, with the other end connected and fixed via a hitch (fixing device) 24 to a support beam 26 provided near the ceiling of the hoistway 14.

[0019] In this embodiment, the under-car pulleys 16A, 16B and pulley 18A of the car 16 function as movable pulleys. In this embodiment, the hoisting machine 30 is installed near the ceiling of the elevator shaft 14, but it may be installed in another location such as the pit 14P of the elevator shaft 14.

[0020] The elevator 10 is equipped with a control unit 40 that performs overall control over the operation of the car 16. The control unit 40 is located at the top of the hoistway 14, i.e., slightly above the top floor landing (not shown). The control unit is fixed to the wall of the hoistway 14 close to the range of up and down movement of the car 16 so that a maintenance worker who boards the car top 16U of the car 16 can perform maintenance and inspection work on the control unit 40.

[0021] Fig. 2(a) is a diagram showing the configuration of the front side of the control unit 40, and Fig. 2(b) is a diagram showing the configuration of the front side of the first cover 50 included in the control unit 40. Fig. 2(c) is a diagram showing the configuration around the fixing holes 55 when the first cover 50 in the state shown in Fig. 2(a) is pulled up slightly upward. As shown in Figs. 2(a) to 2(c), the control unit 40 is installed on the wall surface of the elevator shaft 14 close to the range of movement of the elevator car 16, and includes a storage box 42 having a generally vertically long box-like appearance.

[0022] The storage box 42 includes a box body 44, which is a metal housing that stores various electronic devices (objects to be maintained and inspected) for controlling the elevation of the car 16. A substantially vertically elongated rectangular opening 44A (see FIG. 8) is provided in the front side portion of the box body 44. A first storage area P1 (see FIG. 8) and a second storage area P2 (see FIG. 8) for storing the electronic devices are provided in the upper and lower portions of this opening 44A, respectively.

[0023] As shown in Fig. 2(a), a first cover 50 covering the first storage area P1 and a second cover 60 covering the second storage area P2 are attached to the front side of the box main body 44 so as to be movable in the vertical direction. As shown in Fig. 2(a), the first cover 50 is attached to the box main body 44 so as to be slidable downward from an upper opening covering position covering the first storage area P1. The second cover 60 is attached to the box main body 44 so as to be slidable downward from a lower opening covering position covering the second storage area P2. Because the first cover 50 and the second cover 60 have substantially the same configuration, the following description will mainly focus on the first cover 50, and description of the second cover 60 will be omitted where appropriate.

[0024] The first cover 50 includes a cover body 52 having a generally vertically elongated rectangular shape in a front view, and handles 54A and 54B attached to the center of the upper end of the cover body 52 and the center of the vertically intermediate portion, respectively. The handles 54A and 54B are made of a flexible resin material. This allows the first cover 50 to be smoothly slid up and down via the handles 54A and 54B. In addition, ventilation openings 52A and 52B, each consisting of a number of slit-shaped openings, are provided directly below each of the handles 54A and 54B.

[0025] 2(a), fixing holes 53 and 55 are provided at both left and right ends of the cover body 52 of the first cover 50 for fixing the first cover 50 to the box body 44 via bolts BT1 and BT2. Because the bolts BT1 and BT2 have the same configuration, they will be referred to as "bolt BT" as appropriate in the following description unless there is a need to distinguish between them. Furthermore, the fixing holes 53 and 55 have almost the same configuration except that the fixing hole 53 is located slightly higher than the fixing hole 55. Therefore, the following description will mainly focus on the fixing hole 55 on the right end side, and will omit a description of the fixing hole 53 on the left end side as appropriate.

[0026] The fixing hole 55 is composed of a circular portion 55A having a substantially circular shape in a front view and a groove portion 55B extending upward from the circular portion 55A. The width of the groove portion 55B is formed narrower than the head TU of the bolt BT, and the first cover 50 can be fixed to the box body 44 by tightening the bolt BT into a screw hole (not shown) provided in the box body 44.

[0027] On the other hand, the circular portion 55A is configured to have an outer diameter larger than the head TU of the bolt BT. Therefore, with the bolt BT loosened, the first cover 50 can be removed from the bolt BT by pulling the first cover 50 upward so that the position of the circular portion 55A is the position of the bolt BT (see FIG. 2(c)). This allows the first cover to be removed from the bolt BT without removing the bolt BT from the box main body 44, making the first cover 50 movable in the up and down direction relative to the box main body 44.

[0028] Furthermore, long grooves LM1 (see FIG. 4) and LM2 (see FIG. 3(a)) are provided in the vertical direction at the front end portions of the left side surface 44L and the right side surface 44R of the box body 44. Slide portions (first slide portions) 54 and 56 (see FIG. 4) of the first cover 50, which will be described later, are engaged with these long grooves LM1 and LM2 so that they are movable in the vertical direction, in other words, slidable. The long grooves LM1 and LM2 have the same configuration except for being configured symmetrically, and therefore the following description will mainly focus on the configuration of the long groove LM2 on the right side, and will omit a description of the long groove LM1 on the left side as appropriate.

[0029] Fig. 3(a) is a right side view of the storage box 42, and Fig. 3(b) is a diagram showing the configuration of the right side of the box main body 44 included in Fig. 3(a). As shown in Fig. 3(a) and Fig. 3(b), the long groove LM2 is provided at the front end of the right side surface 44R of the box main body 44 so as to be exposed to the outside when viewed from the right side, in other words, so as to face outward. This long groove LM2 is configured by attaching an upper guide member 46U and a lower guide member 46L in series to the front end surface of the right side surface 44R of the box main body 44 using a plurality of bolts.

[0030] The upper guide member 46U and the lower guide member 46L are elongated members each having a generally U-shaped cross section, and are arranged so that their open ends are located on the outer right side surfaces. The upper guide member 46U is arranged along the side surface of the upper first storage area P1, and the lower guide member 46L is arranged along the side surface of the lower second storage area P2.

[0031] Furthermore, a protrusion 44T is provided at the lower end of the upper guide member 46U, protruding forward from the right side surface 44R of the box body 44. The protrusion 44T is positioned near the position of the slide portion 56 when the first cover 50 is slid downward from the upper opening-covering position to expose the entire first storage area P1. More specifically, the protrusion 44T is positioned adjacent to the slide portion 56 when the first cover 50 is lowered to a position where the slide portion 56 of the first cover 50 abuts against the slide portion 66 of the second cover 60 while the second cover is in the lower opening-covering position. The protrusion 44T has a generally L-shaped exterior shape, with its tip bent at a substantially right angle toward the center of the box body 44. The protrusion 44T serves to narrow the horizontal movable range of the slide portion 56 within the long groove LM2 so that the movable range of the slide portion 56 is limited to the front side portion within the long groove LM2. This forms a narrow passage in the long groove LM2 through which the slide portion 56 can move only in the front side portion of the groove.

[0032] By moving the slide portion 56 to the position of the protrusion 44T described above, it is possible to suppress the front-to-rear swing of the slide portion 56 of the first cover 50. This makes it possible to suppress the swing of the first cover 50 in the front-to-rear direction. As a result, it is possible to prevent the first cover 50 from being displaced toward the center of the elevator shaft 14 and from hitting or getting caught on, for example, a safety fence installed above the car 16U of the car 16.

[0033] 3(b), a long rod-shaped regulating member 47 is attached to the upper guide member 46U between the protrusion 44T and a position directly below the slide portion 56 when the first cover 50 is in the opening upper shielding position. Similar to the protrusion 44T, this regulating member 47 also serves to restrict the slide portion 56 so that only the front portion thereof within the long groove LM2 is movable. By providing the regulating member 47 in this manner, the first cover 50 is prevented from hitting the second cover 60 directly below it when it is displaced in the up-down direction.

[0034] 4 is a cross-sectional view taken along line AA in FIG. 3(a) showing the configuration of the vicinity of the slide portions 54, 56 that engage with both the left and right ends of the box body 44. As shown in FIG. 4, the slide portions 54, 56 have the same configuration except that they are configured symmetrically. In the following explanation, the configuration of the right slide portion 56 will be mainly described, and the explanation of the left slide portion 54 will be omitted as appropriate.

[0035] The slide portion 56 is provided at the upper right end of the cover main body 52 and is a sliding portion with a generally U-shaped cross section. The slide portion 56 is engaged with the long groove LM2 so as to be movable up and down. The regulating member 47 is configured by attaching an angled bar with a generally L-shaped cross section to the upper guide member 46U, and is provided at its upper end with an inclined portion 47A that slopes obliquely downward toward the front surface (see FIG. 3(b)). This inclined portion 47A serves to guide the slide portion 56 forward within the long groove LM2 when the slide portion 56 is displaced downward. The lower end of the regulating member 47 is also provided with an inclined portion 47B that slopes obliquely upward toward the front surface. This allows the slide portion 56 to slide smoothly along the protrusion 44T and the regulating member 47.

[0036] As a result, as the first cover 50 is moved downward from the position that covers the upper opening, the slide portion 56 is displaced forward, causing the first cover 50 to protrude forward. As shown in Fig. 4, by using a member with a generally L-shaped cross section as the restricting member 47, it is also possible to prevent the bolt BT5 that secures the restricting member 47 to the box main body 44 from coming into contact with the slide portion 56 when the slide portion 56 moves up and down within the long groove LM2.

[0037] In this embodiment, a slide portion 56 is provided on the right end portion of the upper end side of the first cover 50, and the first cover 50 is engaged in a state in which it can slide up and down in the long groove LM2 of the box body 44. By providing the slide portion 56 only on the upper end side end portion of the first cover 50 and engaging it with the long groove LM2 of the box body 44 in this way, it is possible to prevent excessive frictional resistance due to sliding when passing through portions where the groove width is narrowed by the protrusion 44T and the regulating member 47, and there is also the advantage that the cover 50 can be moved up and down smoothly.

[0038] As shown in FIG. 3(b), a vibration suppression member 48 is attached to the lower guide member 46L directly above the lowest end. This vibration suppression member 48 is formed from an angle bar with a generally L-shaped cross section, similar to the aforementioned restricting member 47, and serves to restrict the movable range of the slide portion 56 of the first cover 50 so that only the front side portion of the slide portion 56 in the long groove LM2 is movable. This makes it possible to restrict the front-rear swing of the slide portion 56 at the position of the vibration suppression member 48. As a result, it is possible to restrict the front-rear swing of the first cover 50.

[0039] Inclined portions 48A, 48B are provided at both upper and lower ends of the vibration suppression member 48. This allows the sliding portion 56 of the first cover 50 and the sliding portion 66 of the second cover 60 to slide up and down and smoothly move toward the front side of the long groove LM2.

[0040] A slide receiving portion 49 is provided directly below the lower guide member 46L. This slide receiving portion 49 is a groove-shaped portion provided in the right side surface portion 44R of the box body 44, and has the function of receiving and holding the slide portion 56. The slide receiving portion 49 is provided so that its position in the front-to-rear direction is slightly rearward of the lower guide member 46L, and an inclined portion 49A that slopes downward and rearward is provided at the front upper end of the slide receiving portion 49. This inclined portion 49A functions as a guide that guides the slide portion (second slide portion) 66 (see FIG. 3(a)) of the second cover 60, which is guided downward by the lower guide member 46L, rearward (in other words, toward the wall surface of the elevator shaft 14).

[0041] This allows the slide portion 66 (see FIG. 3(a)) of the second cover 60 to be held in a state in which it has been smoothly displaced to a rear position within the long groove LM2. Therefore, when the second cover 60 is moved downward and the slide portion 66 is held by the slide receiving portion 49, even if the first cover 50 is moved downward from the opening upper shielding position, the cover main body 52 of the first cover 50 will not collide with the cover main body 62 of the second cover 60, preventing the movement of the first cover 50.

[0042] Furthermore, as described above, by disposing the slide receiving portion 49 slightly rearward of the lower guide member 46L, the slide portion 66 is held in a sandwiched state between the lower guide member 46L and the slide receiving portion 49. This also has the effect of reducing the swinging of the first cover 50 in the front-to-rear direction.

[0043] With the above-described configuration, both the first storage area P1 and the second storage area P2 can be simultaneously opened while both covers 50, 60 are moved up and down within the same long groove LM2.

[0044] Furthermore, as described above, by holding the second cover 60 at the rear side of the box body 44, in other words, at a position on the wall side of the elevator shaft 14, via the slide receiving portion 49, there is also the advantage that the second cover 60 can be prevented from colliding with, for example, a safety fence installed above the car 16U.

[0045] Fig. 5(a) is a diagram showing the configuration around the slide part 56 in a state where the first cover 50 is pulled forward while being pushed slightly upward from the position where the upper part of the opening is covered, and Fig. 5(b) is a diagram showing the configuration around the slide part 56 in a state where the first cover 50 is slightly lowered from the state shown in Fig. 5(a). Fig. 5(c) is a diagram showing the configuration around the slide part 56 in a state where the first cover 50 is further lowered from the state shown in Fig. 5(b) so that the first cover 50 protrudes forward.

[0046] Also, Figure 6(a) is a cross-sectional view schematically showing the positional relationship between the slide portion 56 and the regulating member 47 within the long groove LM2 in the state shown in Figure 5(b), and Figure 6(b) is a cross-sectional view schematically showing the positional relationship between the slide portion 56 and the regulating member 47 in the state shown in Figure 5(c).

[0047] As shown in FIG. 5(a), the bolts BT (see FIG. 2(a)) attached to the fixing holes 55 of the first cover 50 are loosened in advance, and the first cover 50 is then pulled up to a position where the vertical positions of the bolts BT (see FIG. 2(a)) and the circular portions 55A of the fixing holes 55 are aligned (see FIG. 2(c)). Furthermore, as shown in FIGS. 5(b) and 6(a), the first cover 50 can be removed from the bolts BT (see FIG. 2(a)) by pulling the first cover 50 forward and moving it slightly downward. This allows the first cover 50 to move up and down within the long groove LM2.

[0048] 5(c) and 6(b), as the slide portion 56 moves downward, it comes into contact with the inclined portion 47A of the restricting member 47, causing the slide portion 56 to move downward and toward the front side, resulting in the cover main body 52 of the first cover 50 protruding slightly forward beyond the upper end of the cover main body 62 of the second cover 60 disposed directly below it.

[0049] Therefore, even when the second cover 60 is closed, in other words, when the second cover 60 is in the opening lower shielding position that covers the second storage area P2, the first cover 50 can be displaced downward. Then, as shown by the dashed line in Figure 5(c), the slide portion 56 of the first cover 50 descends along the narrow path formed between the upper guide member 46U and the regulating member 47 in the long groove LM2.

[0050] Next, the procedure for opening the lower second cover 60 from the state in which both covers 50, 60 are in the opening-upper and opening-lower covering positions that respectively cover the first storage area P1 and the second storage area P2 as shown in FIG. 2(a) will be described with reference to FIGS. 7(a) and 7(b). FIG. 7(a) is a front view showing a state in which only the second cover 60 of both covers 50, 60 is open. In FIG. 7(a), the second storage area P2 is indicated by a dashed line. FIG. 7(b) is a right side view of the state shown in FIG. 7(a).

[0051] As shown in FIGS. 7(a) and 7(b), the bolts BT3 and BT4 (see FIG. 2(a)) that secure the second cover 60 to the box body 44 are loosened, and then the second cover 60 is pulled up slightly. Because the configuration of the bolts BT3 and BT4 is the same as that of the bolt BT1 described above, they will be referred to as "bolt BT" in the following description unless there is a need to distinguish between them. This removes the bolts BT from the fixing holes 63 and 65, and moves the slide portion 66 downward to the slide receiving portion 49 at the lowest end. As a result, the entire second storage area P2 is exposed to the outside, and the second cover 60 can be held in a state where it is slightly displaced rearward.

[0052] Next, the procedure for opening the first cover 50 will be described with reference to Figures 8(a) and 8(b). Figure 8(a) is a front view of the storage box 42 in a state where the first cover 50 has been further opened from the state shown in Figure 7(a). In Figure 8(a), the first storage area P1 and the second storage area P2 are each indicated by a dashed dotted line. Figure 8(b) is a right side view of the storage box 42 as seen from the right side in the state shown in Figure 8(a).

[0053] As shown in FIGS. 8(a) and 8(b), the bolts BT that secure the first cover 50 to the box body 44 are loosened, and then the first cover 50 is pulled up slightly to remove the bolts BT from the fixing holes 53, 55. Then, the first cover 50 is moved downward to a position where the slide portion 56 abuts against the slide portion 66 of the second cover 60 held by the slide receiving portion 49 at the lowest end. At this time, the upper portion of the slide portion 56 of the first cover 50 is positioned in the vertical position where the vibration suppression member 48 is provided. This allows the entire first storage area P1 to be exposed to the outside.

[0054] Furthermore, the swing suppression member 48 suppresses the swing of the slide portion 56 in the front-to-rear direction. As a result, it is possible to prevent the first cover 50 from swinging in the front-to-rear direction and protruding toward the center of the elevator shaft 14, and for example, from colliding with a safety fence provided on the car 16.

[0055] 9(a) is a front view of the storage box with only the first cover 50 moved downward while the second cover 60 is in the opening lower shielding position. In FIG. 9(a), the first storage area P1 is indicated by a dashed line. FIG. 9(b) is a right side view of the storage box 42 as viewed from the right side in the state shown in FIG. 9(a). As shown in FIGS. 9(a) and 9(b), the first cover 50 is moved downward to a position where the sliding portion 56 abuts against the sliding portion 66 of the second cover 60 directly below. This allows the entire first storage area P1 to be exposed.

[0056] 9(b), the sliding portion 56 of the first cover 50 is held in contact with the sliding portion 66 of the second cover 60 at the position where the protruding portion 44T is provided. Therefore, the protruding portion 44T suppresses the forward and backward swinging of the sliding portion 56 of the first cover 50. As a result, it is possible to prevent the first cover 50 from swinging forward and backward and protruding toward the center of the hoistway 14 and colliding with, for example, a safety fence provided on the car 16.

[0057] According to the storage box 42 of this embodiment, when the first cover 50 moves downward, the slide portion 56 of the first cover 50 moves forward, allowing the cover main body 52 of the first cover 50 to be displaced downward while protruding forward more than the cover main body 62 of the second cover 60.

[0058] This makes it possible to simultaneously expose both the first storage area P1 and the second storage area P2 to the outside by vertically sliding both the first cover 50 and the second cover 60 of the storage box 42. As a result, it is possible to prevent other components, such as equipment located in the elevator shaft 14, from interfering with the opening and closing of the covers 50, 60, thereby reducing the workload for maintenance and inspection work.

[0059] The present invention can be implemented in various forms, including improvements, modifications, and variations based on the knowledge of those skilled in the art, without departing from the spirit of the invention. Furthermore, the invention can be implemented in a form in which any of the features of the invention are replaced with other technology, as long as the same action or effect is achieved. [Explanation of symbols]

[0060] 10 Elevator 12 Main rope 14 Elevator shaft 16 Car 30 Hoisting machine 40 Control Unit 42 Storage box 44 Box body 44A aperture 44L Left side part 44R Right side part 44T protrusion 46L Lower guide member 46U Upper guide member 47 Regulatory Members 47A Slope 48 Restraining member 49 Slide receiving part 49A Slope 50 First Cover 52 Cover body 53,55 Fixing hole 54, 56 Slide section (first slide section) 54A, 54B Handle 55A circular section 55B Groove 56 Slide section 60 Second Cover 62 Cover body 63,65 Fixing hole 66 Slide section (second slide section) BT1, BT2, BT bolts TU head LM1,LM2 long groove P1 First storage area P2 Second storage area X Left / right direction Y vertical direction Z front and back direction

Claims

1. A storage box for storing maintenance and inspection objects installed in an elevator hoistway, a box body in which a first storage area and a second storage area for storing the maintenance and inspection objects are arranged side by side vertically and in which long grooves extending in the vertical direction are provided on both left and right side surfaces; a first cover portion that covers the first storage area, has a first slide portion configured to be movable within the long groove, and is configured to expose the first storage area by moving downward via the first slide portion; a second cover portion that covers the second storage area, has a second slide portion configured to be movable within the long groove, and is configured to expose the second storage area by moving downward via the second slide portion; Equipped with When the first cover portion moves downward from a state in which it covers the first storage area, the first slide portion is guided forward within the long groove, and thereby the first cover portion is displaced downward in a state in which it protrudes forward beyond the second cover portion. Storage box.

2. The first slide portion is provided at both ends on the upper end side of the first cover portion. The storage box according to claim 1.

3. The second slide portion is provided at both ends on the upper end side of the second cover portion. The storage box according to claim 1.

4. The long grooves are provided outward on both the left and right side surface portions. The storage box according to claim 1.

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