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] This disclosure relates to an elevator car.

Background Art

[0002] Conventional elevator devices include an L-shaped bracket having its horizontal portion arranged flush with the upper surface of the car sill on the floor side of the car sill so that when the thickness of the floor finishing material on the car floor changes, the lower part of the front plate can be supported flush with the car floor (for example, Patent Document 1).

Prior Art Documents

Patent Documents

[0003]

Patent Document 1

Summary of the Invention

Problems to be Solved by the Invention

[0004] In a conventional elevator car, a sill receiver adjustment liner was used to adjust the height of the sill. For this reason, there was a problem that it took time to separately prepare the sill receiver adjustment liner, and the height of the sill could only be adjusted in units of the thickness of this sill receiver adjustment liner.

[0005] This disclosure has been made to solve the above problems, and an object thereof is to provide an elevator car capable of steplessly adjusting the height of the sill with a simple configuration.

Means for Solving the Problems

[0006] The elevator car according to this disclosure comprises a car floor having a sill support beam fixing portion having at least one elongated hole formed therein, at least one sill support beam supported by the car floor, a sill having a sliding groove for sliding the car door and supported by the sill support beam, and a first fastening member fastening the sill support beam fixing portion and the sill support beam through the elongated hole, wherein at least a portion of the straight portion of the elongated hole is inclined with respect to the vertical direction. The sill support beam fixing section has elongated holes that are inclined in a first direction and elongated holes that are inclined in a second direction, opposite to the first direction, alternately formed along the longitudinal direction of the sill support beam fixing section, with one sill support beam provided for each of the elongated holes that are inclined in the first direction and the elongated holes that are inclined in the second direction. . Furthermore, the elevator car according to this disclosure comprises a car floor having a sill support beam fixing portion having at least one elongated hole formed therein, at least one sill support beam supported by the car floor, a sill having a sliding groove for sliding the car door and supported by the sill support beam, and a first fastening member that fastens the sill support beam fixing portion and the sill support beam through the elongated hole, wherein at least a portion of the straight portion of the elongated hole is inclined with respect to the vertical direction, and the sill support beam fixing portion has multiple elongated holes inclined in a first direction and multiple elongated holes inclined in a second direction opposite to the first direction formed alternately along the longitudinal direction of the sill support beam fixing portion, and one sill support beam is provided for each of the multiple elongated holes inclined in the first direction and the multiple elongated holes inclined in the second direction that are formed alternately in multiples. [Effects of the Invention]

[0007] According to this disclosure, the height of the cage threshold can be adjusted steplessly with a simple configuration. [Brief explanation of the drawing]

[0008] [Figure 1] This is a schematic diagram showing the elevator car in Embodiment 1. [Figure 2] This is a front view of the area around the threshold in Embodiment 1. [Figure 3] This is a view from above of the area around the threshold in Embodiment 1. [Figure 4] This is a cross-sectional view AA in Figure 2. [Figure 5] This diagram illustrates the structure of the elongated hole in Embodiment 1. [Figure 6] This diagram illustrates the operation around the threshold in Embodiment 1 from the front. Figure 6(a) shows the threshold in the downward position, and Figure 6(b) shows the threshold in the upward position. [Figure 7] This diagram illustrates the operation around the threshold in Embodiment 1 from a side view. Figure 7(a) shows the threshold in the downward position, and Figure 7(b) shows the threshold in the upward position. [Figure 8] This is a front view of the area around the threshold in Embodiment 2. [Figure 9] This is a view from above of the area around the threshold in Embodiment 2. [Figure 10] This is a front view of the area around the threshold in Embodiment 3. [Figure 11] This is a view from above of the area around the threshold in Embodiment 3. [Modes for carrying out the invention]

[0009] Embodiment 1. The configuration of the elevator car 1 in Embodiment 1 will be described. Figure 1 is a schematic diagram showing the elevator car 1 in Embodiment 1.

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

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

[0012] The elevator car 3 comprises a car floor 10, at least one sill support beam 11 supported by the car floor 10, a sill 12 supported by the sill support beam 11, car walls 13 erected in a row on the car floor, and a car ceiling 14 fixed on the car walls 13. The sill 12 is provided on the entrance side of the elevator car 1 (the front side of the paper in Figure 1). The elevator car 3 further comprises a first fastening member 30 that fastens the car floor 10 and the sill support beam 11, and a second fastening member 31 that fastens the sill support beam 11 and the sill 12 (see Figure 4).

[0013] The detailed configurations of the cage floor 10, the threshold receiving beam 11, and the threshold 12 will be described. FIG. 2 is a front view of the vicinity of the threshold 12 in Embodiment 1. FIG. 3 is a top view of the vicinity of the threshold 12 in Embodiment 1. FIG. 4 is a cross-sectional view taken along line A-A in FIG. 2.

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

[0015] At least a part of the straight portion of the long hole 20 is inclined with respect to the vertical direction. The straight portion inclined with respect to the vertical direction is more likely to reduce the displacement in the vertical direction compared to the straight portion parallel to the vertical direction. The long hole 20 is an opening having a shape obtained by stretching a round hole. The long hole 20 includes a long hole 20a inclined in a first direction with respect to the vertical direction and a long hole 20b inclined in a second direction opposite to the first direction. When no explanation of the inclination direction is required for the long hole 20a and the long hole 20b, they are collectively referred to as the long hole 20 for explanation.

[0016] The threshold receiving beam fixing portion 21 is formed with the long hole 20a and the long hole 20b. The long hole 20a and the long hole 20b are alternately arranged one by one along the longitudinal direction of the threshold receiving beam fixing portion 21 (the left-right direction in FIG. 2). When the threshold receiving beam fixing portion 21 is viewed from the front, the long hole 20a, the long hole 20b, the long hole 20a, the long hole 20b, the long hole 20a, and the long hole 20b are arranged in order from the left side. The threshold receiving beam 11 is provided for each of the long hole 20a and the long hole 20b one by one. Six long holes 20 are formed in the threshold receiving beam fixing portion 21, and six threshold receiving beams 11 are provided.

[0017] The sill support beam 11 has a first flat portion 23 and a second flat portion 24. The sill support beam 11 is in contact with the sill support beam fixing portion 21 at the first flat portion 23 and in contact with the sill 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 on which the elevator car door (not shown) slides, a groove 12b extending in the longitudinal direction of the threshold 12 (left-right direction in Figure 3), and an upper surface 12c. By aligning the height of the upper surface 12c of the threshold 12 with the height of the upper surface of the floor finishing material placed on the floor surface 22 of the elevator car floor 10, entry and exit from the elevator car 3 are made smoother. Examples of floor finishing materials include carpet and tiles.

[0019] The first fastening member 30 fastens the sill support beam fixing part 21 and the sill support beam 11 via the elongated hole 20. In Embodiment 1, a square-head bolt is used as the first fastening member 30. The first fastening member 30 has a square cross-section portion 30a at the base on the back side of the round-headed bolt head. The first fastening member 30 is fixed by passing through the first opening 23a and the elongated hole 20, with the square cross-section portion 30a fitting in contact with the straight portion of the elongated hole 20.

[0020] If the force required to hold a member by a single fastening member is small, it is necessary to increase the size of the fastening member or increase the number of fastening members. In this configuration, at least a portion of the straight section of the elongated hole 20 is inclined with respect to the vertical direction, so the force required to hold the member fastened by the first fastening member 30 is greater compared to the case where the straight section of the elongated hole 20 is not inclined with respect to the vertical direction. Therefore, the size of the first fastening member 30 required to exert a predetermined holding force can be reduced, or the number of first fastening members 30 can be reduced.

[0021] The first fastening member 30 may be any other bolt, such as a hexagonal bolt or a flange bolt. When the first fastening member 30 is a square-headed bolt, the shear holding force can be utilized more effectively compared to when the first fastening member 30 is any other bolt. Therefore, by using a square-headed bolt as the first fastening member 30, the size and number of bolts required to achieve the desired holding force can be reduced compared to when other bolts are used.

[0022] The second fastening member 31 fastens the sill support beam 11 and the sill 12 via the groove 12b. In Embodiment 1, 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 other bolts such as flange bolts.

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

[0024] The detailed configuration of the elongated hole 20 will now be described. Figure 5 is a diagram illustrating the structure of the elongated hole in Embodiment 1. The sill support beam fixing portion 21 has an elongated hole 20a that is inclined in a first direction and an elongated hole 20b that is inclined in a second direction, which is opposite to the first direction.

[0025] A straight section 22a is formed in the elongated hole 20a. The straight section 22a is inclined with respect to the vertical direction (indicated by the dashed line arrow in Figure 5) (to the right in Figure 5). The angle between the straight section 22a and the vertical direction is "+θ°". A straight section 22b is formed in the elongated hole 20b. The straight section 22b is inclined with respect to the vertical direction (indicated by the dashed line arrow in Figure 5) (to the left in Figure 5). The angle between the straight section 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 sections 22a and 22b are inclined with respect to the vertical, and can be appropriately determined from the viewpoint of the height adjustment range of the sill 12 and the holding force. The angle "θ°" is preferably 20 to 70°, more preferably 30 to 60°, and particularly preferably 40 to 50°. It is preferable that the elongated holes 20a and 20b are formed symmetrically.

[0027] Thus, this configuration holds the sill 12 using elongated holes 20a and 20b, which are tilted in opposite directions. Therefore, the force holding the sill 12 is greater compared to the case where all the tilting angles are in the same direction. If any of the first fastening members 30 loosen, it will affect the other first fastening members 30. For example, if one first fastening member 30 fastened through elongated hole 20a loosens, a force will be generated in the direction along the straight portion of elongated hole 20a. In this case, the first fastening member 30 fastened through elongated hole 20b is less affected than the first fastening member 30 fastened through elongated hole 20a. Furthermore, the first fastening member 30 fastened through elongated hole 20b resists the force in the direction along the straight portion of elongated hole 20a, thereby preventing the sill 12 from shifting downward due to loosening.

[0028] The movement around the threshold 12 will be explained. Figure 6 is a diagram illustrating the movement around the threshold 12 as seen 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 movement around the threshold 12 as seen 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] In Figures 6(a) and 7(a), the first fastening member 30 fastens the sill support beam fixing part 21 and the sill support beam 11 at the lower end of the elongated hole 20. In this state, the difference in height (vertical position in Figures 6 and 7) between the floor surface 22 of the cage floor 10 and the upper surface 12c of the sill 12 is H1. In Figures 6(b) and 7(b), the first fastening member 30 fastens the sill support beam fixing part 21 and the sill support beam 11 at the upper end of the elongated hole 20. In this state, the difference in height (vertical position in Figures 6 and 7) between the floor surface 22 of the cage 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 sill 12 will be explained using the example of moving the cage floor 10 from a lower position (Figures 6(a) and 7(a)) to an upper position (Figures 6(b) and 7(b)). The sill support beam 11 is moved so that the first opening 23a of the sill support beam 11 faces the upper end of the elongated hole 20 (upper left direction in Figure 6). As a result, the sill support beam 11 moves in the longitudinal direction of the sill 12 (left direction in Figure 6). In conjunction with the movement of the sill support beam 11, the second fastening member 31 moves longitudinally along the groove 12b of the sill 12 (left direction in Figure 6), and the sill 12 moves upward (upward in Figures 6 and 7). At this position, the first fastening member 30 is fixed. In this way, the height difference between the floor surface 22 of the cage floor 10 and the upper surface 12c of the sill 12 widens from H1 to H2. To reduce the height difference between the floor surface 22 of the basket floor 10 and the upper surface 12c of the sill 12, one should perform the opposite action to the action used to increase the height difference.

[0031] When fastening the sill support beam fixing part 21 to the sill support beam 11, the height of the sill 12 relative to the car floor 10 is changed by changing the fastening position of the first fastening member 30 with respect to the elongated hole 20. This allows adjustment of the height difference between the floor surface 22 of the car floor 10 and the upper surface 12c of the sill 12. Thus, with this configuration, the height of the sill 12 can be adjusted steplessly without requiring any other components. Since the height can be adjusted according to the displacement between the car floor 10 and the sill 12, the step difference between the car floor 10 and the sill 12 can be minimized. This prevents elevator users from tripping and allows for smoother movement of robots.

[0032] Embodiment 2. The configuration of the sill support beam fixing part 51 and the sill support beam 61 in Embodiment 2 will be described. Figure 8 is a front view of the area around the sill 12 in Embodiment 2. Figure 9 is a top view of the area around the sill 12 in Embodiment 2. Embodiment 2 differs from Embodiment 1 in the arrangement of the elongated holes 20 and the structure around them. Components identical to those in Embodiment 1 are denoted by the same reference numerals, and their descriptions are omitted.

[0033] The sill support beam fixing part 51 has elongated holes 20a and elongated holes 20b formed therein. Multiple elongated holes 20a and elongated holes 20b are arranged alternately along the longitudinal direction (left-right direction in Figure 8) of the sill support beam fixing part 51. Specifically, two elongated holes 20a and elongated holes 20b are arranged alternately. When the sill support beam fixing part 51 is viewed from the front, the elongated holes 20a, 20a, 20b, 20b, 20a, and 20a are arranged from left to right in that order.

[0034] The sill support beam 61 is provided for multiple elongated holes 20a and elongated holes 20b, which are formed alternately in multiples. The sill support beam 61 is provided for each set, with the first and second elongated holes 20a from the left forming one set, the third and fourth elongated holes 20b from the left forming one set, and the fifth and sixth elongated holes 20a from the left forming another set.

[0035] In Embodiment 2, three sill support beams 61 are provided for each of the six elongated holes 20 formed in the sill support beam fixing part 51. Compared to the case where a sill support beam fixing part is provided for each of the elongated holes 20, fewer components are used. Therefore, the height of the sill 12 can be adjusted steplessly with a simpler configuration.

[0036] Embodiment 3. The configuration of the sill support beam fixing part 71 and the sill support beam 81 in Embodiment 3 will be described. Figure 10 is a front view of the area around the sill 12 in Embodiment 3. Figure 11 is a top view of the area around the sill 12 in Embodiment 3. Embodiment 3 differs from Embodiment 1 in the arrangement of the elongated holes 20 and the structure around them. Components identical to those in Embodiment 1 are denoted by the same reference numerals, and their descriptions are omitted.

[0037] The sill support beam fixing portion 71 has elongated holes 20a and elongated holes 20b formed therein. Multiple elongated holes 20a and elongated holes 20b are arranged alternately along the longitudinal direction (left-right direction in Figure 10) of the sill support beam fixing portion 71. Specifically, three elongated holes 20a and three elongated holes 20b are arranged alternately. When the sill support beam fixing portion 51 is viewed from the front, the elongated holes 20a, 20a, 20a, 20b, 20b, and 20b are arranged from left to right in that order.

[0038] The sill support beam 81 is provided for multiple elongated holes 20a and elongated holes 20b, which are formed alternately in multiples. The sill support beam 81 is provided for each set, with the first, second, and third elongated holes 20a from the left forming one set, and the fourth, fifth, and sixth elongated holes 20b from the left forming another set.

[0039] In Embodiment 3, two sill support beams 81 are provided for each of the six elongated holes 20 formed in the sill support beam fixing part 71. Compared to the case where a sill support beam fixing part is provided for each of the elongated holes 20, fewer components are used. Therefore, the height of the sill 12 can be adjusted steplessly with a simpler configuration.

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

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

[0042] Furthermore, combining, modifying, or omitting each embodiment as appropriate is also included within the scope of the technical concept shown in the embodiments.

[0043] The various aspects of this disclosure are summarized below as an appendix. (Note 1) A cage floor having a sill support beam fixing part in which at least one elongated hole is formed, At least one threshold support beam supported by the aforementioned cage floor, A sill having a sliding groove for the cage door to slide on and supported by the sill support beam, A first fastening member fastens the sill support beam fixing portion and the sill support beam through the elongated hole, Equipped with, At least a portion of the straight section of the aforementioned elongated hole is inclined with respect to the vertical direction. An elevator car. (Note 2) The sill has a groove that extends in the longitudinal direction of the sill, The system includes a second fastening member that fastens the sill support beam and the sill together via a groove. The elevator car as described in Appendix 1. (Note 3) The aforementioned sill support beam fixing portion has an elongated hole inclined in a first direction and an elongated hole inclined in a second direction opposite to the first direction. The elevator car as described in Appendix 1 or 2. (Note 4) The elongated holes inclined in the first direction and the elongated holes inclined in the second direction are alternately formed one by one along the longitudinal direction of the sill support beam fixing portion. The elevator car as described in Appendix 3. (Note 5) The sill support beam is provided for each of the elongated holes inclined in the first direction and the elongated holes inclined in the second direction. The elevator car described in Appendix 4. (Note 6) Multiple elongated holes, inclined in the first direction and inclined in the second direction, are alternately formed along the longitudinal direction of the sill support beam fixing portion. The elevator car as described in Appendix 3. (Note 7) The sill support beam is provided for each of the multiple elongated holes that are inclined in the first direction and the multiple elongated holes that are inclined in the second direction, which are formed alternately in multiples. The elevator car described in Appendix 6. (Note 8) The first fastening member is a square-head bolt. The elevator car described in any one of the notes 1 through 7. [Explanation of Symbols]

[0044] 1. Elevator car 2 basket frames 2a Bottom frame 2b vertical frame 2c Upper frame 3. Basket compartment 4 Main rope 10 basket floor 11, 61, 81 Threshold support beam 12 Threshold 12a Sliding groove 12b Groove 12c top 13 cage wall 14. Cage ceiling 20, 20a, 20b oblong hole 21, 51, 71 Sill support beam fixing part 22 Floor surface 23 First flat section 23a First opening 24 Second flat section 24a Second opening 30 First fastening member 31 Second fastening member

Claims

1. A cage floor having a sill support beam fixing part in which at least one elongated hole is formed, At least one threshold support beam supported by the aforementioned cage floor, A sill having a sliding groove for the cage door to slide on and supported by the sill support beam, The system includes a first fastening member that fastens the sill support beam fixing portion and the sill support beam through the elongated hole, At least a portion of the straight section of the aforementioned elongated hole is inclined with respect to the vertical direction. The elevator car is provided with one sill support beam fixing portion, in which the elongated holes inclined in a first direction and the elongated holes inclined in a second direction opposite to the first direction are alternately formed along the longitudinal direction of the sill support beam fixing portion, and one sill support beam is provided for each of the elongated holes inclined in the first direction and the elongated holes inclined in the second direction.

2. A cage floor having a sill support beam fixing part in which at least one elongated hole is formed, At least one threshold support beam supported by the aforementioned cage floor, A sill having a sliding groove for the cage door to slide on and supported by the sill support beam, The system includes a first fastening member that fastens the sill support beam fixing portion and the sill support beam through the elongated hole, At least a portion of the straight section of the aforementioned elongated hole is inclined with respect to the vertical direction. The elevator car is provided with a plurality of alternately formed slots along the longitudinal direction of the sill support beam fixing portion, each slot being inclined in a first direction and inclined in a second direction opposite to the first direction, and one sill support beam for each of the plurality of alternately formed slots inclined in the first direction and the plurality of slots inclined in the second direction.

3. The sill has a groove that extends in the longitudinal direction of the sill, The sill support beam and the sill are fastened together by a second fastening member via the groove. The elevator car according to claim 1 or 2.

4. The first fastening member is a square-head bolt. The elevator car according to claim 1 or 2.

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