Landing sill device of elevator

Abstract

To provide a landing sill device of an elevator capable of plugging a through hole of a sill grove when water enters the sill groove from a landing.SOLUTION: A landing sill device of an elevator comprises a landing sill 6 and a closing member 12. The landing sill 6 forms a lower part of a height of a landing doorway 4 connecting a hoistway 1 and a landing 2, and is provided with a sill groove 6c and a through hole 6d. The sill groove 6c is depressed downward from an upper face 6a forming a lower end part of the landing doorway 4 in the landing sill 6, and guides the movement of landing doors 7 and 7' by inserting a door leg protruding downward from lower ends of the landing doors 7 and 7' opening / closing the landing doorway 4. The through hole 6d leads to the hoistway 1 through the landing sill 6 from an inner surface of the sill groove 6c. The closing member 12 is provided around the opposite side to the sill groove 6c of the through hole 6d in the landing sill 6 and closes the through hole 6d by expanding due to absorbing water.SELECTED DRAWING: Figure 5

Description

[Technical Field]

[0001] The present invention relates to an elevator landing threshold device. [Background technology]

[0002] Conventional elevator door thresholds have holes in the threshold grooves that guide the door shoes at the bottom of the door panel. Any debris that gets into the threshold groove falls through the holes, eliminating the need for maintenance workers to clean the threshold groove and eliminating door malfunctions caused by debris (see Patent Document 1). [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Japanese Utility Model Application Publication No. 5-16784 Summary of the Invention [Problem to be solved by the invention]

[0004] However, if water seeps into the threshold groove from the landing, the water may fall through the holes in the threshold groove and onto the equipment, causing the equipment to malfunction.

[0005] The present disclosure has been made to solve the above-mentioned problems, and aims to provide an elevator landing device that closes the hole in the threshold groove when water enters the threshold groove from the landing. [Means for solving the problem]

[0006] The elevator landing threshold device according to the present disclosure comprises a landing threshold and a blocking member, the landing threshold forming the lower part of the landing entrance / exit connecting the hoistway and the landing, and having a threshold groove and a through-hole provided therein, the threshold groove being recessed downward from the upper surface forming the lower end of the height of the landing entrance / exit in the landing threshold, and having a door leg that protrudes downward from the lower end of the landing door that opens and closes the landing entrance inserted into the threshold groove, thereby guiding the movement of the landing door, the through-hole penetrating the landing threshold from the inner surface of the threshold groove and communicating with the hoistway, and the blocking member being provided around the side of the through-hole in the landing threshold opposite the threshold groove, and expanding by absorbing water to block the through-hole. [Effects of the Invention]

[0007] The elevator landing threshold device of the present disclosure prevents water from falling through the through-hole when water enters the threshold groove from the landing, thereby preventing equipment located below the through-hole from becoming covered in water and breaking down. [Brief explanation of the drawings]

[0008] [Figure 1] FIG. 2 is a front view of the landing entrance / exit in the first embodiment. [Figure 2] FIG. 2 is a rear view of the landing entrance / exit in the first embodiment. [Figure 3] 3 is a view taken along the line AA in FIG. 2. [Figure 4] 3 is a view taken along the arrow BB in FIG. 2. [Figure 5] FIG. 3 is a detailed view of part C in FIG. 2. [Figure 6] FIG. 3 is a detailed view of part C in FIG. 2. [Figure 7] FIG. 3 is a detailed view of part C in FIG. 2. [Figure 8] FIG. 10 is a detailed view of a main part in the second embodiment. [Figure 9] FIG. 11 is a detailed view of a main part in the third embodiment. [Figure 10] FIG. 13 is a rear view of the landing entrance / exit in the fourth embodiment. DETAILED DESCRIPTION OF THE INVENTION

[0009] Hereinafter, preferred embodiments of an elevator landing threshold device according to the present disclosure will be described with reference to the drawings. The same reference numerals throughout the drawings indicate the same or corresponding parts.

[0010] An elevator hall threshold device 11 according to the first embodiment will be described with reference to FIGS. 1 to 6. FIG.

[0011] FIG. 1 is a front view of a landing entrance / exit 4 in the first embodiment. FIG. 1 is a drawing of the landing entrance / exit 4 as seen from the landing 2 side. FIG. 2 is a rear view of the landing entrance / exit 4 in the first embodiment. FIG. 2 is a drawing of the landing entrance / exit 4 as seen from the hoistway 1 side. FIG. 3 is a drawing as seen from the arrow AA in FIG. 2. FIG. 4 is a drawing as seen from the arrow BB in FIG. 2. FIG. 5 is a detailed view of part C in FIG. 2. FIG. 5 is a drawing showing a state before the blocking member 12 is expanded. FIG. 5(a) is a drawing of part C as seen from above in FIG. 2. FIG. 5(b) is a drawing of part C as seen from the front in FIG. 2. FIG. 5(c) is a drawing of part C as seen from the right in FIG. 2. FIG. 6 is a detailed view of part C in FIG. 2. FIG. 6 is a drawing showing a state after the blocking member 12 has expanded. FIG. 6(a) is a drawing corresponding to FIG. 5(a). Figure 6(b) is a view corresponding to Figure 5(b), and Figure 6(c) is a view corresponding to Figure 5(c).

[0012] An elevator shaft 1 is provided across multiple floors of the building in which the elevator is installed. The elevator car ascends and descends within the elevator shaft 1. A landing 2 is provided at the floor where the car stops. The landing 2 is located next to the elevator shaft 1. The elevator shaft 1 and the landing 2 are separated by a wall 3. The wall 3 has an opening 3a. The opening 3a connects the elevator shaft 1 and the landing 2.

[0013] The landing entrance 4 is located inside the opening 3a. The landing entrance 4 connects the hoistway 1 and the landing 2. The hoistway 1 and the landing 2 are aligned in the depth direction of the landing entrance 4.

[0014] The landing entrance / exit 4 is formed by a landing jamb 5 and a landing threshold 6. The landing jamb 5 forms the sides and upper part of the landing entrance / exit 4 in the width direction. The landing threshold 6 forms the lower part of the landing entrance / exit 4. An upper surface 6a of the landing threshold forms the lower end of the height of the landing entrance / exit 4. The landing threshold 6 is longer than the landing entrance / exit 4 in both width directions. Ends 6b and 6b', which are both ends of the landing entrance / exit 4 in the width direction, of the landing threshold 6, are located outside the landing entrance / exit 4 in the width direction of the landing entrance / exit 4. The ends 6b and 6b' are located in the hoistway 1.

[0015] The landing entrance 4 is opened and closed by the landing doors 7 and 7' as follows.

[0016] The landing doors 7 and 7' are located on the side of the landing frame 5 on the hoistway 1 side in the depth direction of the landing entrance / exit 4. The landing doors 7 and 7' do not come into contact with the landing frame 5 in the depth direction of the landing entrance / exit 4. A gap is provided between the landing doors 7 and 7' and the landing frame 5 in the depth direction of the landing entrance / exit 4.

[0017] The landing doors 7 and 7' are located above the landing threshold 6. The landing doors 7 and 7' do not come into contact with the landing threshold 6 in the vertical direction. A gap is provided between the landing doors 7 and 7' and the landing threshold 6 in the vertical direction.

[0018] The landing doors 7 and 7' move in the width direction of the landing entrance 4 to open and close the landing entrance 4. The landing door 7 and the landing door 7' move in opposite directions in the width direction of the landing entrance 4.

[0019] When the car ascends or descends in the elevator shaft 1 and arrives at the landing 2, the car entrance and the landing entrance 4 face each other, and the landing doors 7 and 7' open and close the landing entrance 4. When the landing doors 7 and 7' open the landing entrance 4, elevator users move between the inside of the car and the landing 2 through the car entrance and the landing entrance 4. When the car has not yet arrived at the landing 2, the landing doors 7 and 7' close the landing entrance 4.

[0020] The landing entrance 4 is opened and closed by the landing doors 7 and 7' as described above.

[0021] The landing doors 7 and 7' are guided in their movement in the width direction of the landing entrance 4 as follows.

[0022] The landing doors 7 and 7' are guided in their movement in the width direction of the landing entrance 4 by the landing threshold 6 and the landing door opening / closing device 8.

[0023] The landing threshold 6 is provided with a threshold groove 6c. The threshold groove 6c is recessed downward from an upper surface 6a that forms the lower end of the landing threshold 6 at the height of the landing entrance / exit 4. The threshold groove 6c extends in both width directions of the landing entrance / exit to ends 6b and 6b' of the landing threshold 6 and communicates with the elevator shaft 1.

[0024] The landing doors 7 and 7' are fitted with door legs 9. The door legs 9 protrude downward from the lower ends of the landing doors 7 and 7'. The door legs 9 are inserted into the threshold grooves 6c.

[0025] The landing door operating device 8 is located on the wall 3 side of the elevator shaft 1. The landing door operating device 8 is located above the landing entrance 4.

[0026] The landing door opening and closing device 8 has a rail 8a, a hanger 8b, and a roller 8c.

[0027] The rail 8a extends in the width direction of the landing entrance 4. The hanger 8b is attached to the landing doors 7 and 7'. The hanger 8b protrudes upward beyond the landing doors 7 and 7'. The roller 8c is rotatably attached to the hanger 8b. The roller 8c is placed on the rail 8a.

[0028] The landing doors 7 and 7' are suspended from the rail 8a via hangers 8b and rollers 8c. The landing doors 7 and 7' are fitted into the threshold groove 6c of the landing threshold 6 via the door legs 9. The rail 8a and the threshold groove 6c guide the movement of the landing doors 7 and 7'. The landing doors 7 and 7' move in the width direction of the landing entrance 4 along the rail 8a and the threshold groove 6c.

[0029] The landing doors 7 and 7' are guided in their movement in the width direction of the landing entrance 4 as described above.

[0030] The landing threshold 6 is provided with a through hole 6d. The through hole 6d penetrates the landing threshold 6 from the inner surface of the threshold groove 6c. The through hole 6d extends downward from the bottom surface of the threshold groove 6c and penetrates the landing threshold 6. The through hole 6d is connected to the elevator shaft 1. The size of the through hole 6e does not change in the depth direction of the through hole 6e. The size of the through hole 6e does not change from one end on the threshold groove 6c side to the other end on the opposite side from the threshold groove 6c.

[0031] The through-hole 6d guides the garbage that has entered the threshold groove 6c out of the threshold groove 6c. When the landing doors 7 and 7' are opened and closed, the garbage in the threshold groove 6c is pushed by the door legs 9 and is discharged out of the landing threshold 6 through the through-hole 6d.

[0032] The landing threshold 6 is provided with a plurality of through holes 6d. The plurality of through holes 6d are arranged in the width direction of the landing entrance 4 at intervals.

[0033] The devices 10a and 10b are arranged in the elevator shaft 1. For example, the devices 10a and 10b are a power supply device, a wiring connection device, an earthquake detection device, etc. The device 10a is located below the through-hole 6d of the landing threshold 6. The device 10b is located at the bottom of the elevator shaft 1.

[0034] Next, a description will be given of the landing threshold device 11. The landing threshold device 11 is provided as follows.

[0035] The landing threshold device 11 includes a landing threshold 6, a blocking member 12, a water collecting basin 13, and a water stop valve 14.

[0036] The landing threshold 6 is fixed to the hoistway 1. The landing threshold 6 is fixed to the wall 3 of the hoistway 1 by a bracket 15.

[0037] The blocking member 12 is provided around the side of the through-hole 6d in the landing threshold 6 opposite the threshold groove 6c. The blocking member 12 is provided on the side of the landing 2 and the side opposite the landing 2 around the through-hole 6d in a direction perpendicular to the depth direction of the through-hole 6d. The blocking member 12 is provided on the side of the end 6b of the landing threshold 6 and the side of the end 6b' of the landing threshold 6 around the through-hole 6d in a direction perpendicular to the depth direction of the through-hole 6d. For example, the blocking member 12 is attached to the landing threshold 6.

[0038] The blocking member 12 is provided with a through portion 12a. The through portion 12a penetrates the blocking member 12 in the depth direction of the through hole 6d. The through portion 12a is a hole. The size of the through portion 12a does not change in the depth direction of the through portion 12a. The size of the through portion 12a does not change from one end on the through hole 6d side to the other end on the opposite side from the through hole 6d.

[0039] The through portion 12a is continuous with the through hole 6d in the depth direction of the through hole 6d. The through portion 12a overlaps with the through hole 6d in the depth direction of the through hole 6d. The blocking member 12 is not separated from the other end of the through hole 6d. One end of the through portion 12a is aligned with the other end of the through hole 6d. The blocking member 12 does not overlap with the through hole 6d in the depth direction of the through hole 6d.

[0040] The blocking member 12 is made of a material that expands when it absorbs water. When the blocking member 12 absorbs water and expands, it extends horizontally toward the through-hole 6d. When the blocking member 12 absorbs water and expands, it closes the through-hole 6d.

[0041] The blocking members 12 are similarly provided for each of the through holes 6d.

[0042] The catch basin 13 is located below the threshold groove 6c at the end 6b of the landing threshold 6. For example, the catch basin 13 is attached to the landing threshold 6 with a screw member. The catch basin 13 is open upward. The catch basin 13 receives water that falls from the threshold groove 6c at the end 6b of the landing threshold 6. Water that has entered the threshold groove 6c from the landing 2 falls from the threshold groove 6c at the end 6b of the landing threshold 6 and enters the catch basin 13.

[0043] The stop valve 14 is fitted in the threshold groove 6c. The stop valve 14 is located outside the landing entrance 4 in the width direction of the landing entrance 4. The stop valve 14 is located on the side of the end 6b' of the landing threshold 6. The stop valve 14 prevents water that has seeped into the threshold groove 6c from the landing 2 from flowing to the end 6b' of the landing threshold 6.

[0044] The landing threshold device 11 is provided as described above.

[0045] The landing threshold device 11 operates as follows.

[0046] For example, if the landing 2 faces outdoors, rainwater will seep into the threshold groove 6c during rainy weather, running down the floor of the landing 2, the upper surface 6a of the landing threshold 6, and the side surface of the threshold groove 6c facing the landing 2.

[0047] For example, when cleaning water is poured onto the floor surface of the landing 2 to clean it, the cleaning water flows down the floor surface of the landing 2, the upper surface 6a of the landing threshold 6, and the side surface of the threshold groove 6c facing the landing 2, and then seeps into the threshold groove 6c.

[0048] The water that has entered the threshold groove 6c flows from the side surface or bottom surface of the threshold groove 6c on the landing 2 side along the side surface of the through-hole 6d and enters the through-hole 6d. The water that has entered the through-hole 6d flows along the side surface of the through-hole 6d and reaches the closing member 12. The closing member 12 absorbs the water that has reached the closing member 12 and expands, closing the through-hole 6d.

[0049] When the through-hole 6d is blocked by the blocking member 12, water that has entered the threshold groove 6c flows along the bottom surface of the threshold groove 6c to at least one side of the end portions 6b and 6b' of the landing threshold 6.

[0050] The water that flows toward the end 6b of the landing threshold 6 falls from the threshold groove 6c at the end 6b of the landing threshold 6. The catch basin 13 receives the water that falls from the threshold groove 6c at the end 6b of the landing threshold 6.

[0051] The stop valve 14 prevents water that has flowed toward the end 6b' of the landing threshold 6 from falling through the threshold groove 6c at the end 6b' of the landing threshold 6. The water that is prevented by the stop valve 14 from falling through the threshold groove 6c at the end 6b' of the landing threshold 6 flows toward the end 6b of the landing threshold 6.

[0052] The landing threshold device 11 functions as described above.

[0053] The landing threshold device 11 in the first embodiment comprises a landing threshold 6 and a blocking member 12, the landing threshold 6 forms the lower part of the landing entrance / exit 4 connecting the hoistway 1 and the landing 2, and is provided with a threshold groove 6c and a through hole 6d, the threshold groove 6c is recessed downward from an upper surface 6a that forms the lower end of the height of the landing entrance / exit 4 in the landing threshold 6, and has door legs 9 that protrude downward from the lower ends of the landing doors 7 and 7' that open and close the landing entrance / exit 4 inserted therein to guide the movement of the landing doors 7 and 7', the through hole 6d penetrates the landing threshold 6 from the inner surface of the threshold groove 6c and leads to the hoistway 1, and the blocking member 12 is provided around the side of the landing threshold 6 opposite the threshold groove 6c of the through hole 6d, and expands by absorbing water to block the through hole 6d.

[0054] This prevents water from falling through the through-hole 6d when water enters the threshold groove 6c from the landing 2, thereby preventing the equipment 10a provided below the through-hole 6d from being covered in water and breaking down.

[0055] In addition, the blocking member 12 is restricted from expanding toward the threshold groove 6c by the landing threshold 6, so that after the blocking member 12 expands, it is possible to prevent the blocking member 12 from interfering with the movement of the door leg 9.

[0056] In addition, since there is no need to pass drainage pipes, gutters, etc. under the landing threshold 6 in the width direction of the landing entrance / exit 4, installation can be easily performed.

[0057] The landing threshold device 11 in the first embodiment is provided with a catch basin 13, which is located below the threshold groove 6c, and when water seeps into the threshold groove 6c, the catch basin 13 receives the water that falls from the threshold groove 6c.

[0058] This prevents water from accumulating at the bottom of the elevator shaft 1 when water enters the threshold groove 6c from the landing 2, thereby preventing equipment 10b located at the bottom of the elevator shaft 1 from becoming submerged in water and breaking down.

[0059] The landing threshold device 11 in the first embodiment is equipped with a water stop valve 14, the threshold groove 6c extends in the width direction of the landing entrance / exit 4 to an end 6b' of the landing threshold 6 and communicates with the elevator shaft 1, the water stop valve 14 is fitted into the threshold groove 6c and is located outside the landing entrance / exit 4 in the width direction of the landing entrance / exit 4 and is located on the side of the end 6b' of the landing threshold 6, and when water seeps into the threshold groove 6c, the water stop valve 14 prevents the water from dropping from the threshold groove 6c on the side of the end 6b' of the landing threshold 6.

[0060] This allows water that has entered the threshold groove 6c to flow toward the end 6b of the landing threshold 6 and be received in the catch basin 13.

[0061] In the first embodiment, as shown in FIG. 7, the blocking member 12 may overlap the through-hole 6d in the depth direction of the through-hole 6d.

[0062] Fig. 7 is a detailed view of part C in Fig. 2. Fig. 7 is a view showing the state before the blocking member 12 is expanded. Fig. 7(a) is a view corresponding to Fig. 5(a). Fig. 7(b) is a view corresponding to Fig. 5(b). Fig. 7(c) is a view corresponding to Fig. 5(c).

[0063] In this case, when water enters the threshold groove 6c from the landing 2, the water flows from the side and bottom surface of the threshold groove 6c on the landing 2 side, along the side surface of the through-hole 6d, and reaches the upper surface of the blocking member 12, and is therefore easily absorbed by the blocking member 12.

[0064] Next, the elevator hall threshold device 21 according to the second embodiment will be described with reference to FIG.

[0065] Fig. 8 is a detailed view of the main part in embodiment 2. Fig. 8 is a view showing the state before the blocking member 12 is expanded. Fig. 8(a) is a view corresponding to Fig. 5(a). Fig. 8(b) is a view corresponding to Fig. 5(b). Fig. 8(c) is a view corresponding to Fig. 5(c).

[0066] The platform threshold device 21 in embodiment 2 is the same as the platform threshold device 11 in embodiment 1, except that a through hole 6e is provided instead of the through hole 6d in the platform threshold 6 of the platform threshold device 11 in embodiment 1.

[0067] The through hole 6e differs from the through hole 6d in the following points.

[0068] The size of the through hole 6e varies in the depth direction of the through hole 6e, widening from one end on the threshold groove 6c side to the other end on the opposite side from the threshold groove 6c.

[0069] The through portion 12a of the blocking member 12 is not smaller than one end of the through hole 6e in the depth direction of the through hole 6e, and is smaller than the other end of the through hole 6e. The blocking member 12 does not overlap with the one end of the through hole 6e in the depth direction of the through hole 6e, but does overlap with the other end of the through hole 6e. The blocking member 12 overlaps the entire circumference of the other end of the through hole 6e in the depth direction of the through hole 6e.

[0070] In the landing threshold device 21 of embodiment 2, the through hole 6e extends from one end on the threshold groove 6c side to the other end on the opposite side to the threshold groove 6c, and the blocking member 12 does not overlap with one end of the through hole 6e in the depth direction of the through hole 6e but overlaps with the other end of the through hole 6e.

[0071] As a result, when water enters the threshold groove 6c from the landing 2, the water flows from the side and bottom surface of the threshold groove 6c on the landing 2 side along the side surface of the through hole 6e and reaches the upper surface of the blocking member 12, and is therefore easily absorbed by the blocking member 12.

[0072] Furthermore, any debris that has entered the threshold groove 6c can easily pass through the through-hole 6e and exit the landing threshold 6 without getting caught on the blocking member 12.

[0073] Next, an elevator hall threshold device 31 according to the third embodiment will be described with reference to FIG.

[0074] Fig. 9 is a detailed view of the main part in embodiment 3. Fig. 9 is a view showing the state before the blocking member 12 is expanded. Fig. 9(a) is a view corresponding to Fig. 5(a). Fig. 9(b) is a view corresponding to Fig. 5(b). Fig. 9(c) is a view corresponding to Fig. 5(c).

[0075] The landing threshold device 31 in the third embodiment is the same as the landing threshold device 11 in the first embodiment, except that it is provided with a frame member 32.

[0076] The frame member 32 is provided around the closing member 12. For example, the frame member 32 is attached to the landing threshold 6 with a screw member. The frame member 32 runs along the side surface of the closing member 12.

[0077] The frame member 32 is arranged along the side surface of the blocking member 12 facing away from the landing threshold 6 in the depth direction of the through-hole 6d. The frame member 32 is located below the blocking member 12. The frame member 32 restricts the expansion of the blocking member 12 in the depth direction of the through-hole 6d. The frame member 32 restricts the expansion of the blocking member 12 in the downward direction.

[0078] The frame member 32 is along the side of the blocking member 12 facing away from the through hole 6d in a direction perpendicular to the depth direction of the through hole 6d. The frame member 32 is located closer to the landing 2 and on the opposite side from the landing 2 than the through hole 6d and the blocking member 12 in the depth direction of the landing entrance 4. The frame member 32 restricts the blocking member 12 from expanding on the side opposite to the through hole 6d in the direction perpendicular to the depth direction of the through hole 6d. The frame member 32 restricts the blocking member 12 from expanding on the side opposite to the through hole 6d in the depth direction of the landing entrance 4.

[0079] The frame member 32 is provided with a through portion 32a. The through portion 32a overlaps with the through portion 12a of the blocking member 12 in the depth direction of the through portion 12a. The through portion 32a is continuous with the through portion 12a in the depth direction of the through portion 12a. The through portion 32a is a hole. The end of the through portion 32a on the through portion 12a side coincides with the end of the through portion 12a on the through portion 32a side. The frame member 32 does not overlap with the through portion 12a in the depth direction of the through portion 12a. The frame member 32 does not overlap with the through hole 6d in the depth direction of the through hole 6d.

[0080] The landing threshold device 31 in embodiment 3 includes a frame member 32 arranged around the blocking member 12, and the frame member 32 runs along the side of the blocking member 12 facing away from the landing threshold 6 in the depth direction of the through hole 6d and also runs along the side of the blocking member 12 facing away from the through hole 6d in a direction perpendicular to the depth direction of the through hole 6d.

[0081] As a result, the frame member 32 restricts the expansion of the blocking member 12 in the depth direction of the through hole 6d and in the direction perpendicular to the depth direction of the through hole 6d, thereby making it possible to more reliably block the through hole 6d.

[0082] Next, an elevator hall threshold device 41 according to the fourth embodiment will be described with reference to FIG.

[0083] 10 is a rear view of the landing entrance / exit 4 in the fourth embodiment. FIG. 10 is a view corresponding to FIG.

[0084] The landing threshold device 41 in embodiment 4 is the same as the landing threshold device 11 in embodiment 1, except that it is equipped with a funnel 42, a drain pipe 43, and a water collection box 44, and does not have the water collection box 13 of the landing threshold device 11 in embodiment 1.

[0085] The funnel 42 is located below the threshold groove 6c at the end 6b of the landing threshold 6. For example, the funnel 42 is attached to the landing threshold 6 by a screw member. The funnel 42 receives water that falls from the threshold groove 6c at the end 6b of the landing threshold 6. Water that has entered the threshold groove 6c from the landing 2 falls from the threshold groove 6c at the end 6b of the landing threshold 6 and enters the funnel 42.

[0086] The drain pipe 43 has one end and the other end located lower than the one end. One end of the drain pipe 43 is located below the funnel 42. One end of the drain pipe 43 is connected to the bottom of the funnel 42. The drain pipe 43 receives water coming out of the bottom of the funnel 42 at one end of the drain pipe 43. The water that enters the funnel 42 leaves the bottom of the funnel 42 and enters one end of the drain pipe 43. The water that enters one end of the drain pipe 43 flows to the other end of the drain pipe 43.

[0087] The catch basin 44 is located below the other end of the drain pipe 43. The catch basin 44 is located at the bottom of the elevator shaft 1. The other end of the drain pipe 43 is inserted into the catch basin 44. The catch basin 44 receives water coming out of the other end of the drain pipe 43. The water that enters the drain pipe 43 falls from the other end of the drain pipe 43 and enters the catch basin 44.

[0088] The landing threshold device 41 is provided as described above.

[0089] The landing threshold device 41 in embodiment 4 comprises a funnel 42, a drain pipe 43, and a water collection box 44, the funnel 42 is located below the threshold groove 6c, the drain pipe 43 has one end located below the funnel 42 and the other end located lower than the one end, the water collection box 44 is located below the other end of the drain pipe 43, and when water enters the threshold groove 6c, the funnel 42 receives the water falling from the threshold groove 6c, the drain pipe 43 receives the water coming out of the funnel 42 at one end of the drain pipe 42, and the water collection box 43 receives the water coming out of the other end of the drain pipe 42.

[0090] This makes it possible to easily change the position of the catch basin 43. For example, the catch basin 43 can be easily installed to avoid other equipment. For example, the catch basin 43 can be easily installed to match the shape of the elevator shaft 1.

[0091] The landing threshold device 41 in the fourth embodiment is equipped with a water stop valve 14, the threshold groove 6c extends in the width direction of the landing entrance / exit 4 to an end 6b' of the landing threshold 6 and communicates with the elevator shaft 1, the water stop valve 14 is fitted into the threshold groove 6c and is located outside the landing entrance / exit 4 in the width direction of the landing entrance / exit 4 and is located on the side of the end 6b' of the landing threshold 6, and when water seeps into the threshold groove 6c, the water stop valve 14 prevents the water from dropping from the threshold groove 6c on the side of the end 6b' of the landing threshold 6.

[0092] This allows water that has entered the threshold groove 6c to flow to the end 6b of the landing threshold 6 and be received in the catch basin 44 via the funnel 42 and the drain pipe 43.

[0093] In the first to fourth embodiments, the blocking member 12 does not have to be provided continuously around the periphery on the side opposite to the threshold groove 6c of the through-hole 6d or 6e in the landing threshold 6. For example, the blocking member 12 does not have to be provided on the side opposite to the landing 2.

[0094] Furthermore, in embodiments 1 to 4, the through holes 6d and 6e penetrate the landing threshold 6 downward from the bottom surface of the threshold groove 6a, but they may also extend, for example, from the side surface of the threshold groove 6a opposite the landing 2 to the side opposite the landing 2 and penetrate the landing threshold 6.

[0095] In addition, in the first to fourth embodiments, if the end 6b' side of the landing threshold 6 in the threshold groove 6c does not communicate with the elevator shaft 1, the stop valve 14 is not necessary.

[0096] Furthermore, in the first to fourth embodiments, if the landing threshold 6 has a through-hole that penetrates from the inner surface of the threshold groove 6c through the landing threshold 6, and the through-hole is located closer to the end 6b of the landing threshold 6 than the landing entrance / exit 4 in the width direction of the landing entrance / exit 4, then by arranging the water stop valve 14 between the through-hole and the landing entrance / exit 4 in the width direction of the landing entrance / exit 4, it is possible to prevent water that has entered the threshold groove 6c from the landing 2 from passing through the through-hole and dropping down from the threshold groove 6c.

[0097] In addition, in the first to fourth embodiments, a catch basin 13 may be provided instead of the stop valve 14, so that the water that falls from the threshold groove 6c at the end 6b' of the landing threshold 6 can be received in the catch basin 13.

[0098] Similarly, in embodiments 1 to 4, by providing a funnel 52, a drain pipe 53, and a catch basin 54 instead of the stop valve 14, water falling from the threshold groove 6c at the end 6b' of the landing threshold 6 can be received in the catch basin 54 via the funnel 52 and the annular member 53.

[0099] In addition, in embodiments 1 to 3, if the end 6b side of the landing threshold 6 in the threshold groove 6c does not lead to the elevator shaft 1, a through hole may be provided that penetrates the landing threshold from the inner surface of the threshold groove 6c, and water that falls from this through hole may be collected in a water collection box 13.

[0100] Similarly, in embodiment 4, if the end 6b side of the landing threshold 6 in the threshold groove 6c does not lead to the elevator shaft 1, a through hole may be provided that penetrates the landing threshold from the inner surface of the threshold groove 6c, and water that falls from this through hole may be collected in a water collection box 44 via a funnel 42 and an annular member 43.

[0101] In addition, in the fourth embodiment, the funnel 42 may not be used, and one end of the drain pipe 43 may be positioned below the threshold groove 6c to receive the water that falls from the threshold groove 6c.

[0102] Furthermore, in the first to fourth embodiments, the landing threshold devices 11, 21, 31, and 41 are used in the landing entrance / exit 4 that is opened and closed by the two landing doors 7 and 7' moving to opposite sides in the width direction of the landing entrance / exit 4, but regardless of the number of landing doors and the direction of movement, they can be used in a landing entrance / exit in which the landing threshold forms the lower end of the landing entrance / exit and has a threshold groove and a through-hole that penetrates the landing threshold from the inner surface of the threshold groove and leads to the elevator shaft.

[0103] Furthermore, in the first to fourth embodiments, the landing threshold devices 11, 21, 31, and 41 are provided at the landing 2 on the lowest floor, but they may be provided at landings other than the lowest floor.

[0104] Furthermore, two or more of the first to fourth embodiments can be combined.

[0105] Various aspects of the present disclosure are summarized below as appendices.

[0106] (Appendix 1) A landing threshold and a blocking member are provided, The landing threshold forms a lower part of the landing entrance connecting the elevator shaft and the landing, and is provided with a threshold groove and a through hole, The threshold groove is recessed downward from an upper surface that forms a lower end of the height of the landing entrance / exit at the landing threshold, and a leg of a door that protrudes downward from a lower end of a landing door that opens and closes the landing entrance / exit is inserted into the threshold groove, thereby guiding movement of the landing door, The through hole penetrates the landing threshold from the inner surface of the threshold groove and communicates with the elevator shaft, The blocking member is provided around the side of the landing threshold opposite the threshold groove of the through hole, and expands by absorbing water to block the through hole. Elevator landing threshold device. (Appendix 2) The through hole extends from one end on the threshold groove side to the other end on the opposite side from the threshold groove, The blocking member does not overlap the one end of the through hole in the depth direction of the through hole and overlaps the other end of the through hole. 1. An elevator landing threshold device as described in Appendix 1. (Appendix 3) a frame member provided around the closing member, The frame member is arranged along a side surface of the closing member facing away from the landing threshold in the depth direction of the through hole and along a side surface of the closing member facing away from the through hole in a direction perpendicular to the depth direction of the through hole. 1. An elevator landing threshold device as set forth in Appendix 1 or Appendix 2. (Appendix 4) Equipped with a catch basin, The catch basin is located below the threshold groove, When water seeps into the threshold groove, the catch basin receives the water that falls from the threshold groove. An elevator landing threshold device according to any one of appendices 1 to 3. (Appendix 5) Equipped with drainage pipes and catch basins, The drain pipe has one end located below the threshold groove and the other end located below the one end, The catch basin is located below the other end of the drain pipe, When water seeps into the threshold groove, the drain pipe receives the water that falls from the threshold groove at one end of the drain pipe, and the catch basin receives the water that comes out from the other end of the drain pipe. An elevator landing threshold device according to any one of appendices 1 to 3. (Appendix 6) Equipped with a funnel, drain pipe, and catch basin; The funnel is located below the threshold groove, The drain pipe has one end located below the funnel and the other end located below the one end, The catch basin is located below the other end of the drain pipe, When water enters the threshold groove, the funnel receives the water that falls from the threshold groove, the drain pipe receives the water that comes out of the funnel at one end of the drain pipe, and the catch basin receives the water that comes out of the other end of the drain pipe. An elevator landing threshold device according to any one of appendices 1 to 3. (Appendix 7) Equipped with a water stop valve, The threshold groove extends in the width direction of the landing entrance to the end of the landing threshold and leads to the elevator shaft, The stop valve is fitted into the threshold groove and is located outside the landing entrance in the width direction of the landing entrance and on the side of the end of the landing threshold, When the water enters the threshold groove, the water stop valve prevents the water from falling from the threshold groove on the side of the end of the landing threshold. 1. An elevator landing threshold device according to any one of appendices 1 to 6. [Explanation of symbols]

[0107] 1 elevator shaft, 2 landing, 3 wall, 3a opening, 4 landing entrance / exit, 5 landing three-sided frame, 6 landing threshold, 6a top surface, 6b end, 6b' end, 6c threshold groove, 6d through hole, 6e through hole, 7 landing door, 7' landing door, 8 landing door opening / closing device, 8a rail, 8b hanger, 8c roller, 9 door leg, 10a equipment, 10b equipment, 11 landing threshold device, 12 blocking member, 12a penetration, 13 water collection box, 14 stop valve, 15 bracket, 21 landing threshold device, 31 landing threshold device, 32 frame member, 32a penetration, 41 landing threshold device, 42 funnel, 43 drain pipe, 44 water collection box.

Claims

1. A landing threshold and a blocking member are provided, The landing threshold forms a lower part of the landing entrance connecting the elevator shaft and the landing, and is provided with a threshold groove and a through hole, The threshold groove is recessed downward from an upper surface that forms a lower end of the height of the landing entrance / exit at the landing threshold, and a leg of a door that protrudes downward from a lower end of a landing door that opens and closes the landing entrance / exit is inserted into the threshold groove, thereby guiding movement of the landing door, The through hole penetrates the landing threshold from the inner surface of the threshold groove and communicates with the elevator shaft, The blocking member is provided around the side of the landing threshold opposite the threshold groove of the through hole, and expands by absorbing water to block the through hole. Elevator landing threshold device.

2. The through hole extends from one end on the threshold groove side to the other end on the opposite side from the threshold groove, The blocking member does not overlap the one end of the through hole in the depth direction of the through hole and overlaps the other end of the through hole. The elevator landing threshold device according to claim 1.

3. a frame member provided around the closing member, The frame member is arranged along a side surface of the closing member facing away from the landing threshold in the depth direction of the through hole and along a side surface of the closing member facing away from the through hole in a direction perpendicular to the depth direction of the through hole.

3. The elevator landing threshold device according to claim 1 or 2.

4. Equipped with a catch basin, The catch basin is located below the threshold groove, When water seeps into the threshold groove, the catch basin receives the water that falls from the threshold groove. The elevator landing threshold device according to claim 1.

5. Equipped with drainage pipes and catch basins, The drain pipe has one end located below the threshold groove and the other end located below the one end, The catch basin is located below the other end of the drain pipe, When water seeps into the threshold groove, the drain pipe receives the water that falls from the threshold groove at one end of the drain pipe, and the catch basin receives the water that comes out from the other end of the drain pipe. The elevator landing threshold device according to claim 1.

6. Equipped with a funnel, drain pipe, and catch basin; The funnel is located below the threshold groove, The drain pipe has one end located below the funnel and the other end located below the one end, The catch basin is located below the other end of the drain pipe, When water enters the threshold groove, the funnel receives the water that falls from the threshold groove, the drain pipe receives the water that comes out of the funnel at one end of the drain pipe, and the catch basin receives the water that comes out of the other end of the drain pipe. The elevator landing threshold device according to claim 1.

7. Equipped with a water stop valve, The threshold groove extends in the width direction of the landing entrance to the end of the landing threshold and leads to the elevator shaft, The stop valve is fitted into the threshold groove and is located outside the landing entrance in the width direction of the landing entrance and on the side of the end of the landing threshold, When the water enters the threshold groove, the water stop valve prevents the water from falling from the threshold groove on the side of the end of the landing threshold. The elevator landing threshold device according to any one of claims 4 to 6.

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