Elevator car

Abstract

To provide an elevator car capable of steplessly adjusting height of a doorsill in a simple configuration.SOLUTION: An elevator car 1 comprises a car floor 10 with a doorsill support beam fixing part 21 with a long hole 20 formed, a doorsill support beam 11 supported by the car floor 10, a doorsill 12 supported by the doorsill support beam 11, and a first coupling member 30 coupling the doorsill support beam 11 and the long hole 20 via the doorsill support beam fixing part 21. At least a part of a straight part in the long hole 20 is inclined relative to the vertical direction.SELECTED DRAWING: Figure 6

Description

[Technical Field]

[0001] The present disclosure relates to elevator cars. [Background technology]

[0002] Conventional elevator devices are equipped with an L-shaped bracket on the floor side of the car sill, with its horizontal part aligned with the top surface of the car sill, so that the lower part of the front side panel can be supported in accordance with the car floor when the thickness of the floor finishing material on the car floor changes (for example, Patent Document 1). [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Japanese Patent Application Laid-Open No. 2016-40190 Summary of the Invention [Problem to be solved by the invention]

[0004] Conventional elevator cars use threshold support adjustment liners to adjust the threshold height, which requires the time and effort of preparing a separate threshold support adjustment liner, and the threshold height can only be adjusted in units of the thickness of the threshold support adjustment liner.

[0005] The present disclosure has been made to solve the above-mentioned problems, and aims to provide an elevator car that can adjust the threshold height steplessly with a simple configuration. [Means for solving the problem]

[0006] The elevator car of the present disclosure comprises a car floor having a threshold beam fixing portion with a long hole formed therein, a threshold beam supported by the car floor, a threshold having a sliding groove along which the car door slides and supported by the threshold beam, and a first fastening member that fastens the threshold beam fixing portion and the threshold beam via the long hole, and at least a portion of the straight portion of the long hole is inclined relative to the vertical direction. [Effects of the Invention]

[0007] According to the present disclosure, the height of the car sill can be adjusted continuously with a simple configuration. [Brief explanation of the drawings]

[0008] [Figure 1] 1 is a schematic diagram showing an elevator car in the first embodiment. FIG. [Figure 2] FIG. 2 is a front view of the periphery of the threshold in the first embodiment. [Figure 3] FIG. 2 is a view of the area around the threshold in the first embodiment as seen from above. [Figure 4] 3 is a cross-sectional view taken along the line AA in FIG. 2. [Figure 5] 3A and 3B are diagrams illustrating the structure of a slot in the first embodiment. [Figure 6] 6A and 6B are diagrams illustrating the operation around the threshold from the front in the first embodiment, with FIG. 6A showing the state where the threshold is in the lower position, and FIG. 6B showing the state where the threshold is in the upper position. [Figure 7] 7A and 7B are diagrams illustrating the operation around the threshold from the side in the first embodiment, where FIG. 7A shows the state where the threshold is in the lower position, and FIG. 7B shows the state where the threshold is in the upper position. [Figure 8] FIG. 10 is a front view of the area around the threshold in the second embodiment. [Figure 9] FIG. 10 is a view of the area around the threshold in the second embodiment as seen from above. [Figure 10] FIG. 11 is a front view of the area around the threshold in the third embodiment. [Figure 11] FIG. 11 is a view of the area around the threshold in the third embodiment as seen from above. DETAILED DESCRIPTION OF THE INVENTION

[0009] Embodiment 1 The following describes the configuration of an elevator car 1 in the first embodiment. Fig. 1 is a schematic diagram showing an elevator car 1 in the first embodiment.

[0010] An elevator car 1 has a car frame 2 and a car chamber 3. The car frame 2 supports the car chamber 3. The car frame 2 has a lower frame 2a, a pair of vertical frames 2b, and an upper frame 2c. The car chamber 3 is arranged on the lower frame 2a via vibration-isolating rubber 2d provided on the lower frame 2a. The lower frame 2a supports the car chamber 3 from below. The pair of vertical frames 2b are each provided along the height direction of the car chamber 3 (the up-and-down direction in Figure 1). The lower end of each of the pair of vertical frames 2b is fixed to the lower frame 2a. The upper end of each of the pair of vertical frames 2b is fixed to the upper frame 2c. The pair of vertical frames 2b connect the lower frame 2a and the upper frame 2c.

[0011] Main ropes 4 are fixed to the upper frame 2c. The elevator car 1 is suspended by the main ropes 4. The main ropes 4 may be made of multiple ropes or multiple belts.

[0012] The car chamber 3 has a car floor 10, at least one threshold support beam 11 supported by the car floor 10, a threshold 12 supported by the threshold support beam 11, a car chamber wall 13 standing side by side on the car floor, and a car chamber ceiling 14 fixed onto the car chamber wall 13. The threshold 12 is provided on the entrance / exit side of the elevator car 1 (the front side of the paper in FIG. 1). The car chamber 3 further has a first fastening member 30 that fastens the car floor 10 and the threshold support beam 11 together, and a second fastening member 31 that fastens the threshold support beam 11 and the threshold 12 together (see FIG. 4).

[0013] The detailed configurations of the car floor 10, the threshold support beam 11, and the threshold 12 will be described. Fig. 2 is a front view of the periphery of the threshold 12 in the first embodiment. Fig. 3 is a top view of the periphery of the threshold 12 in the first embodiment. Fig. 4 is a cross-sectional view taken along line AA in Fig. 2.

[0014] The car floor 10 supports the threshold 12 via a threshold support beam 11. The car floor 10 has a threshold support beam fixing portion 21 in which at least one elongated hole 20 is formed, and a floor surface 22 on which a floor finishing material is placed. The threshold support beam fixing portion 21 has a flat portion that extends in the longitudinal direction of the threshold 12 (the left-right direction in FIG. 2) and in a direction intersecting with the floor surface 22 (the up-down direction in FIG. 4).

[0015] At least a portion of the straight portion of the slot 20 is inclined with respect to the vertical direction. Straight portions inclined with respect to the vertical direction are more likely to reduce vertical deviation than straight portions parallel to the vertical direction. The slot 20 is an opening shaped like an elongated round hole. The slot 20 includes a slot 20a inclined in a first direction with respect to the vertical direction, and a slot 20b inclined in a second direction opposite to the first direction. When it is not necessary to explain the direction of inclination of the slot 20a and the slot 20b, they will be collectively referred to as the slot 20.

[0016] The threshold support beam fixing portion 21 has an oblong hole 20a and an oblong hole 20b formed therein. The oblong holes 20a and the oblong holes 20b are alternately arranged one by one along the longitudinal direction of the threshold support beam fixing portion 21 (the left-right direction in FIG. 2). When the threshold support beam fixing portion 21 is viewed from the front, the following are arranged from left to right: oblong hole 20a, oblong hole 20b, oblong hole 20a, oblong hole 20b, oblong hole 20a, oblong hole 20b. One threshold support beam 11 is provided for each of the oblong holes 20a and 20b. Six oblong holes 20 are formed in the threshold support beam fixing portion 21, and six threshold support beams 11 are provided.

[0017] The threshold support beam 11 has a first flat portion 23 and a second flat portion 24. The threshold support beam 11 contacts the threshold support beam fixing portion 21 at the first flat portion 23 and contacts the threshold 12 at the second flat portion 24. A first opening 23a is formed in the first flat portion 23. A second opening 24a is formed in the second flat portion 24.

[0018] The threshold 12 has a sliding groove 12a along which the car door (not shown) slides, a groove 12b extending in the longitudinal direction of the threshold 12 (the left-right direction in FIG. 3), and an upper surface 12c. By aligning the height of the upper surface 12c of the threshold 12 with the upper surface of a floor finishing material placed on the floor surface 22 of the car floor 10, passengers can smoothly enter and exit the car room 3. Examples of floor finishing materials include carpet and tiles.

[0019] The first fastening member 30 fastens the threshold support beam fixing portion 21 and the threshold support beam 11 via the elongated hole 20. In the first embodiment, a square root bolt is used as the first fastening member 30. The first fastening member 30 has a square cross-sectional portion 30a at the base of the back side of the round-disk-shaped bolt head. The first fastening member 30 is fixed by passing through the first opening 23a and the elongated hole 20 so that the square cross-sectional portion 30a contacts and fits into the straight portion of the elongated hole 20.

[0020] If the force with which a single fastening member can hold a component is small, it is necessary to increase the size of the fastening member or the number of fastening members. In this configuration, at least a portion of the straight portion of the elongated hole 20 is inclined with respect to the vertical direction, so the force with which the component fastened by the first fastening member 30 can be held is greater than when the straight portion of the elongated hole 20 is not inclined with respect to the vertical direction. This makes it possible to reduce the size of the first fastening member 30 or the number of first fastening members 30 required to exert a predetermined holding force.

[0021] The first fastening member 30 may be a hexagon bolt, a flange bolt, or another type of bolt. When the first fastening member 30 is a square-head bolt, it can utilize a greater shear holding force than when the first fastening member 30 is another type of bolt. Therefore, by using a square-head bolt as the first fastening member 30, it is possible to reduce the size and number of bolts required to exert a predetermined holding force compared to when other bolts are used.

[0022] The second fastening member 31 fastens the threshold beam 11 and the threshold 12 via the groove 12b. In the first embodiment, a hexagonal bolt is used as the second fastening member 31. The second fastening member 31 is fixed by passing through the groove 12b and the second opening 24a. The second fastening member 31 may be another bolt such as a flange bolt.

[0023] The groove 12b is formed to extend in the longitudinal direction of the threshold 12. Therefore, the second fastening member 31 is movable in the longitudinal direction of the threshold 12 (left and right direction in Figures 2 and 3). The mounting position of the threshold support beam 11 relative to the longitudinal direction of the threshold 12 can be changed. In other words, by moving the threshold support beam 11 in the longitudinal direction, the threshold support beam 11 and the threshold 12 can be fastened together without moving the threshold 12 in the longitudinal direction.

[0024] The detailed configuration of the elongated hole 20 will be described. Fig. 5 is a diagram illustrating the structure of the elongated hole in embodiment 1. The threshold beam fixing portion 21 is formed with an elongated hole 20a inclined in a first direction and an elongated hole 20b inclined in a second direction opposite to the first direction.

[0025] A straight line portion 22a is formed in the oblong hole 20a. The straight line portion 22a is inclined (to the right in FIG. 5) with respect to the vertical direction (indicated by the arrow shown by the dashed line in FIG. 5). The angle formed between the straight line portion 22a and the vertical direction is "+θ°". A straight line portion 22b is formed in the oblong hole 20b. The straight line portion 22b is inclined (to the left in FIG. 5) with respect to the vertical direction (indicated by the arrow shown by the dashed line in FIG. 5). The angle formed between the straight line portion 22b and the vertical direction is "-θ°".

[0026] The angle "θ°" is, for example, 45°. The angle "θ°" is not particularly limited as long as the straight portion 22a and the straight portion 22b are inclined with respect to the vertical direction, and can be determined appropriately from the viewpoint of the adjustable range of the height of the threshold 12 and the holding force. The angle "θ°" is preferably 20 to 70°, more preferably 30 to 60°, and particularly preferably 40 to 50°. The oblong holes 20a and 20b are preferably formed line-symmetrically.

[0027] As described above, this configuration holds the threshold 12 using the oblong holes 20a and 20b, which are inclined in opposite directions. Therefore, the force holding the threshold 12 is greater than when all the inclination angles are in the same direction. If any of the first fastening members 30 loosens, the other first fastening members 30 are also affected. For example, if one of the first fastening members 30 fastened through the oblong holes 20a loosens, a force is generated along the linear portion of the oblong holes 20a. In this case, the first fastening member 30 fastened through the oblong holes 20b is less affected than the first fastening member 30 fastened through the oblong holes 20a. Furthermore, the first fastening member 30 fastened through the oblong holes 20b resists the force along the linear portion of the oblong holes 20a, thereby preventing the threshold 12 from shifting downward due to loosening.

[0028] The operation around the threshold 12 will now be described. Figure 6 is a diagram illustrating the operation around the threshold 12 as viewed from the front. Figure 6(a) shows the state where the threshold 12 is in the downward position, and Figure 6(b) shows the state where the threshold 12 is in the upward position. Figure 7 is a diagram illustrating the operation around the threshold 12 as viewed from the side. Figure 7(a) shows the state where the threshold 12 is in the downward position, and Figure 7(b) shows the state where the threshold 12 is in the upward position.

[0029] 6(a) and 7(a), the first fastening member 30 fastens the threshold beam fixing portion 21 and the threshold beam 11 at the lower end side of the elongated hole 20. In this state, the difference in height (the vertical position in FIGS. 6 and 7) between the floor surface 22 of the car floor 10 and the upper surface 12c of the sill 12 is H1. 6(b) and 7(b), the first fastening member 30 fastens the threshold beam fixing portion 21 and the threshold beam 11 at the upper end side of the elongated hole 20. In this state, the difference in height (the vertical position in FIGS. 6 and 7) between the floor surface 22 of the car floor 10 and the upper surface 12c of the sill 12 is H2. H2 is greater than H1.

[0030] The operation of adjusting the height of the threshold 12 will be described using an example in which the car floor 10 is moved from a state in which it is in a lower position (FIGS. 6(a) and 7(a)) to a state in which it is in an upper position (FIGS. 6(b) and 7(b)). The threshold support beam 11 is moved (upper left in FIG. 6) so that the first opening 23a of the threshold support beam 11 faces the upper end side of the elongated hole 20. As a result, the threshold support beam 11 moves in the longitudinal direction of the threshold 12 (leftward in FIG. 6). In accordance with the movement of the threshold support beam 11, the second fastening member 31 moves longitudinally along the groove 12b of the threshold 12 (leftward in FIG. 6), and the threshold 12 moves upward (upward in FIG. 6 and FIG. 7). At this position, the first fastening member 30 is fixed. In this way, the height difference between the floor surface 22 of the car floor 10 and the upper surface 12c of the threshold 12 increases from H1 to H2. To narrow the difference in height between the floor surface 22 of the car floor 10 and the upper surface 12c of the sill 12, the operation for widening the difference in height may be performed in the opposite direction.

[0031] When fastening the threshold support beam fixing portion 21 to the threshold support beam 11, the height of the threshold 12 relative to the car floor 10 can be changed by changing the fastening position of the first fastening member 30 relative to the elongated hole 20. This makes it possible to adjust the height difference between the floor surface 22 of the car floor 10 and the upper surface 12c of the threshold 12. In this way, with this configuration, the height of the threshold 12 can be adjusted continuously without requiring any additional components. Since the height can be adjusted according to the misalignment between the car floor 10 and the threshold 12, the step between the car floor 10 and the threshold 12 can be minimized. This makes it possible to prevent elevator users from tripping and to facilitate the movement of the robot.

[0032] Embodiment 2 The configuration of the threshold support beam fixing portion 51 and the threshold support beam 61 in embodiment 2 will be described. Fig. 8 is a front view of the area around the threshold 12 in embodiment 2. Fig. 9 is a top view of the area around the threshold 12 in embodiment 2. Embodiment 2 differs from embodiment 1 in the arrangement of the elongated holes 20 and the surrounding structure. The same components as in embodiment 1 are given the same symbols, and their description will be omitted.

[0033] Slotted holes 20a and 20b are formed in threshold support beam fixing portion 51. Multiple slotted holes 20a and multiple slotted holes 20b are alternately arranged along the longitudinal direction of threshold support beam fixing portion 51 (left-right direction in FIG. 8). Specifically, two slotted holes 20a and two slotted holes 20b are alternately arranged. When threshold support beam fixing portion 51 is viewed from the front, the slotted holes 20a, 20a, 20b, 20b, 20a, and 20a are arranged in this order from the left.

[0034] The threshold support beams 61 are provided for the multiple alternatingly formed oblong holes 20a and multiple alternatingly formed oblong holes 20b. The threshold support beams 61 are provided for each of the following sets: the first and second oblong holes 20a from the left as one set, the third and fourth oblong holes 20b from the left as one set, and the fifth and sixth oblong holes 20a from the left as one set.

[0035] In the second embodiment, three threshold support beams 61 are provided for the six oblong holes 20 formed in the threshold support beam fixing portion 51. Fewer components are used compared to when a threshold support beam fixing portion is provided for each oblong hole 20. This allows the height of the threshold 12 to be adjusted continuously with a simpler configuration.

[0036] Embodiment 3 The configuration of the threshold support beam fixing portion 71 and the threshold support beam 81 in embodiment 3 will be described. Fig. 10 is a front view of the area around the threshold 12 in embodiment 3. Fig. 11 is a top view of the area around the threshold 12 in embodiment 3. Embodiment 3 differs from embodiment 1 in the arrangement of the elongated holes 20 and the surrounding structure. The same components as in embodiment 1 are given the same symbols, and their description will be omitted.

[0037] Slotted holes 20a and 20b are formed in threshold support beam fixing portion 71. Multiple slotted holes 20a and multiple slotted holes 20b are alternately arranged along the longitudinal direction (left-right direction in FIG. 10) of threshold support beam fixing portion 71. Specifically, three slotted holes 20a and three slotted holes 20b are alternately arranged. When threshold support beam fixing portion 51 is viewed from the front, the slotted holes 20a, 20a, 20a, 20b, 20b, and 20b are arranged in this order from the left.

[0038] The threshold support beams 81 are provided for the multiple slotted holes 20a and multiple slotted holes 20b that are alternately formed. The threshold support beams 81 are provided for each set of the first, second, and third slotted holes 20a from the left, and for each set of the fourth, fifth, and sixth slotted holes 20b from the left.

[0039] In the third embodiment, two threshold support beams 81 are provided for each of the six elongated holes 20 formed in the threshold support beam fixing portion 71. Fewer components are used compared to when a threshold support beam fixing portion is provided for each of the elongated holes 20. This allows the height of the threshold 12 to be adjusted continuously with a simpler configuration.

[0040] In the above embodiment, a configuration in which a total of six elongated holes 20 are provided has been described, but the number of elongated holes is not limited to this.

[0041] The angle "θ°" of the oblong holes 20a and 20b inclined in opposite directions may be the same or different. The angle "θ°" of each of the multiple oblong holes 20a may be the same or different. The angle "θ°" of each of the multiple oblong holes 20b may be the same or different.

[0042] It should be noted that appropriate combinations, modifications, and omissions of the respective embodiments are also included within the scope of the technical ideas shown in the embodiments.

[0043] Various aspects of the present disclosure are summarized below as appendices. (Appendix 1) a car floor having a threshold beam fixing portion in which at least one elongated hole is formed; at least one sill support beam supported on the car floor; a threshold having a sliding groove along which the car door slides and supported by the threshold support beam; a first fastening member that fastens the threshold support beam fixing portion and the threshold support beam through the elongated hole; Equipped with At least a part of the straight portion of the slot is inclined with respect to the vertical direction. Elevator car. (Appendix 2) The threshold has a groove extending in the longitudinal direction of the threshold, A second fastening member is provided to fasten the threshold support beam and the threshold via a groove. An elevator car as described in Appendix 1. (Appendix 3) The threshold beam fixing portion has the oblong hole inclined in a first direction and the oblong hole inclined in a second direction opposite to the first direction. 1. An elevator car as described in appendix 1 or 2. (Appendix 4) The oblong holes inclined in the first direction and the oblong holes inclined in the second direction are alternately formed one by one along the longitudinal direction of the threshold beam fixing portion. An elevator car as described in Appendix 3. (Appendix 5) One threshold support beam is provided for each of the oblong holes inclined in the first direction and the oblong holes inclined in the second direction. An elevator car as described in Appendix 4. (Appendix 6) The oblong holes inclined in the first direction and the oblong holes inclined in the second direction are alternately formed in plural along the longitudinal direction of the threshold beam fixing portion. An elevator car as described in Appendix 3. (Appendix 7) The threshold support beam is provided for each of the plurality of slots inclined in the first direction and the plurality of slots inclined in the second direction, which are alternately formed in plurality. An elevator car as described in Appendix 6. (Appendix 8) The first fastening member is a square root bolt. 1. An elevator car according to any one of claims 1 to 7. [Explanation of symbols]

[0044] 1. Elevator car 2 basket frame 2a Bottom frame 2b vertical frame 2c Upper frame 3 Cage 4 Main rope 10 Cage bed 11, 61, 81 Threshold beam 12 Threshold 12a sliding groove 12b Groove 12c top 13 Cage wall 14 Cage ceiling 20, 20a, 20b oblong hole 21, 51, 71 Threshold beam fixing part 22 Floor 23 First Flat Area 23a First opening 24 Second Flat Area 24a Second opening 30 First fastening member 31 Second fastening member

Claims

1. a car floor having a threshold beam fixing portion in which at least one elongated hole is formed; at least one sill support beam supported on the car floor; a threshold having a sliding groove along which the car door slides and supported by the threshold support beam; a first fastening member that fastens the threshold support beam fixing portion and the threshold support beam through the elongated hole; Equipped with At least a part of the straight portion of the slot is inclined with respect to the vertical direction. Elevator car.

2. The threshold has a groove extending in the longitudinal direction of the threshold, A second fastening member is provided to fasten the threshold support beam and the threshold via a groove.

2. The elevator car of claim 1.

3. The threshold beam fixing portion has the oblong hole inclined in a first direction and the oblong hole inclined in a second direction opposite to the first direction.

3. An elevator car according to claim 1 or 2.

4. The oblong holes inclined in the first direction and the oblong holes inclined in the second direction are alternately formed one by one along the longitudinal direction of the threshold support beam fixing portion.

4. The elevator car of claim 3.

5. One threshold support beam is provided for each of the oblong holes inclined in the first direction and the oblong holes inclined in the second direction.

5. The elevator car of claim 4.

6. The oblong holes inclined in the first direction and the oblong holes inclined in the second direction are alternately formed in plural along the longitudinal direction of the threshold beam fixing portion.

4. The elevator car of claim 3.

7. The threshold support beam is provided for each of the plurality of slots inclined in the first direction and the plurality of slots inclined in the second direction, which are alternately formed in plurality.

7. The elevator car of claim 6.

8. The first fastening member is a square root bolt.

3. An elevator car according to claim 1 or 2.

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