Elevator car

Abstract

The purpose of the present disclosure is to provide an elevator car capable of steplessly adjusting the height of a sill with a simple structure. An elevator car (1) is provided with: a car floor (10) having a sill support beam fixing part (21) in which a long hole (20) is formed; a sill support beam (11) that is supported by the car floor (10); a sill (12) supported by the sill support beam (11); and a first fastening member (30) that fastens the sill support beam fixing section (21) and the sill support beam (11) via the long hole (20), and at least a portion of the linear section of the long hole (20) is inclined with respect to the vertical direction.

Description

Technical Field

[0001] The present disclosure relates to a car of an elevator. Background Art

[0002] In order to support the lower part of the front side panel corresponding to the car floor when the thickness of the floor decoration material of the car floor changes, previous elevator devices have an L-shaped bracket on the floor side of the car sill, whose horizontal part is arranged corresponding to the upper surface of the car sill (for example, patent document 1).

[0003] Prior art literature

[0004] Patent Literature

[0005] Patent Document 1: Japanese Patent Application Laid-Open No. 2016-40190 Summary of the Invention

[0006] Problems to be solved by the invention

[0007] In conventional elevator cars, sill support and adjustment pads are used to adjust the sill height. This has the following problems: it is troublesome to prepare a separate sill support and adjustment pad, and the sill height can only be adjusted by the thickness of the sill support and adjustment pad.

[0008] The present disclosure has been made to solve the above-mentioned problems, and an object thereof is to provide an elevator car capable of steplessly adjusting the height of a sill with a simple structure.

[0009] Means for solving problems

[0010] The elevator car of the present invention comprises: a car floor, which has a sill support beam fixing portion formed with a long hole; a sill support beam, which is supported by the car floor; a sill, which has a sliding groove for sliding a car door and is supported by the sill support beam; and a first fastening component, which fastens the sill support beam fixing portion and the sill support 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.

[0011] Effects of the Invention

[0012] According to the present disclosure, the height of the car sill can be adjusted steplessly with a simple structure. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 This is a schematic diagram showing an elevator car in the first embodiment.

[0014] Figure 2 This is a diagram showing the periphery of the sill in Embodiment 1 as viewed from the front.

[0015] Figure 3This is a diagram showing the periphery of the sill in Embodiment 1 as viewed from above.

[0016] Figure 4 yes Figure 2 AA cross-sectional view.

[0017] Figure 5 This is a diagram illustrating the structure of the long hole in the first embodiment.

[0018] Figure 6 This is a diagram illustrating the movement of the periphery of the sill in the first embodiment from the front. Figure 6 (a) shows the state where the sill is at the bottom. Figure 6 (b) shows a state where the sill is at the upper side.

[0019] Figure 7 This is a side view illustrating the movement of the periphery of the sill in the first embodiment. Figure 7 (a) indicates that the sill is at the bottom. Figure 7 (b) indicates a state where the sill is at the top.

[0020] Figure 8 This is a front view of the periphery of the sill in the second embodiment.

[0021] Figure 9 This is a diagram showing the periphery of the sill in Embodiment 2 as viewed from above.

[0022] Figure 10 This is a front view of the periphery of the sill in the third embodiment.

[0023] Figure 11 This is a diagram showing the periphery of the sill in Embodiment 3 as viewed from above.

[0024] Label Description

[0025] 1: Elevator car;

[0026] 2: car frame;

[0027] 2a: lower frame;

[0028] 2b: vertical frame;

[0029] 2c: upper frame;

[0030] 3: Car room;

[0031] 4: Main rope;

[0032] 10: Car floor;

[0033] 11, 61, 81: sill support beams;

[0034] 12: sill;

[0035] 12a: sliding groove;

[0036] 12b: slot;

[0037] 12c: upper surface;

[0038] 13: Car wall;

[0039] 14: Car room ceiling;

[0040] 20, 20a, 20b: long hole;

[0041] 21, 51, 71: fixed part of sill support beam;

[0042] 22: Floor surface;

[0043] 23: first flat portion;

[0044] 23a: First opening;

[0045] 24: second flat portion;

[0046] 24a: second opening;

[0047] 30: first fastening component;

[0048] 31: Second fastening component. DETAILED DESCRIPTION

[0049] Implementation method 1.

[0050] The structure of the elevator car 1 in the first embodiment will be described. Figure 1 This is a schematic diagram showing the elevator car 1 according to the first embodiment.

[0051] The 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 a 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 arranged along the height direction of the car chamber 3 (at Figure 1 The pair of vertical frames 2b are arranged in the vertical direction. The lower ends of each pair of vertical frames 2b are fixed to the lower frame 2a. The upper ends of each pair of vertical frames 2b are fixed to the upper frame 2c. The pair of vertical frames 2b connects the lower frame 2a and the upper frame 2c.

[0052] Main ropes 4 are fixed to the upper frame 2c. The elevator car 1 is suspended by the main ropes 4. As the main ropes 4, a plurality of ropes or a plurality of belts are used.

[0053] The car room 3 has a car floor 10, at least one sill support beam 11 supported on the car floor 10, a sill 12 supported on the sill support beam 11, car walls 13 arranged and erected on the car floor, and a car ceiling 14 fixed to the car walls 13. The sill 12 is provided on the entrance and exit side of the elevator car 1 (at Figure 1 The car room 3 further includes a first fastening member 30 for fastening the car floor 10 to the sill support beam 11 and a second fastening member 31 for fastening the sill support beam 11 to the sill 12 (see FIG. Figure 4 ).

[0054] The detailed structures of the car floor 10, the sill supporting beam 11, and the sill 12 will be described. Figure 2 This is a front view of the periphery of the sill 12 in the first embodiment. Figure 3 This is a diagram showing the periphery of the sill 12 in the first embodiment as viewed from above. Figure 4 yes Figure 2 AA cross-sectional view.

[0055] The car floor 10 supports the sill 12 via the sill support beam 11. The car floor 10 has a sill support beam fixing portion 21 formed with at least one long hole 20 and a floor surface 22 provided with a floor finishing material. The sill support beam fixing portion 21 has a longitudinal direction ( Figure 2 The left and right directions in the middle) and the direction intersecting the floor surface 22 ( Figure 4 A flat portion extending in the up-down direction).

[0056] At least a portion of the straight portion of the elongated hole 20 is inclined relative to the vertical direction. A straight portion inclined relative to the vertical direction is less likely to deviate from the vertical direction than a straight portion parallel to the vertical direction. The elongated hole 20 is an opening formed by extending a circular hole. The elongated hole 20 includes an elongated hole 20a, which is inclined in a first direction relative to the vertical direction, and an elongated hole 20b, which is inclined in a second direction opposite to the first direction. Unless the inclination direction is necessary, the elongated holes 20a and 20b are collectively referred to as the elongated hole 20.

[0057] The long hole 20a and the long hole 20b are formed in the sill support beam fixing portion 21. The long hole 20a and the long hole 20b are along the length direction of the sill support beam fixing portion 21 (in the direction of the long hole 20a and the long hole 20b). Figure 2 The sill support beam fixing portion 21 is arranged alternately (left and right). When viewing the sill support beam fixing portion 21 from the front, the following sequence is arranged from the left: elongated hole 20a, elongated hole 20b, elongated hole 20a, elongated hole 20b, elongated hole 20a, and elongated hole 20b. A sill support beam 11 is provided for each elongated hole 20a and elongated hole 20b. Six elongated holes 20 are formed in the sill support beam fixing portion 21, and six sill support beams 11 are provided.

[0058] The sill supporting beam 11 has a first flat portion 23 and a second flat portion 24. The sill supporting beam 11 contacts the sill supporting beam fixing portion 21 at the first flat portion 23 and contacts the sill 12 at the second flat portion 24. A first opening 23a is formed in the first flat portion 23, and a second opening 24a is formed in the second flat portion 24.

[0059] The sill 12 has a sliding groove 12a for the car door (not shown) to slide, and a longitudinal direction of the sill 12 (in the longitudinal direction of the sill 12). Figure 3 The sill 12 has a groove 12b extending in the horizontal direction (in the left-right direction) and an upper surface 12c. By aligning the upper surface 12c of the sill 12 with the upper surface of the floor covering material disposed on the floor surface 22 of the car floor 10, entry and exit of the car chamber 3 are facilitated. Examples of the floor covering material include carpets and tiles.

[0060] The first fastening member 30 fastens the sill support beam fixing portion 21 to the sill support beam 11 via the elongated hole 20. In Embodiment 1, a square-neck bolt is used as the first fastening member 30. The first fastening member 30 has a square cross-section 30a at the neck portion on the back side of the disc-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-section 30a contacts and engages with the straight portion of the elongated hole 20.

[0061] If the force required to retain a component by a single fastening member is low, it may be necessary to increase the size of the fastening member or to increase the number of fastening members. In this configuration, since at least a portion of the straight portion of the elongated hole 20 is inclined relative to the vertical direction, the force required to retain the component secured by the first fastening member 30 is greater than in a case where the straight portion of the elongated hole 20 is not inclined relative to the vertical direction. Consequently, 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.

[0062] The first fastening member 30 may also be a hexagonal bolt, flange bolt, or other bolt. When the first fastening member 30 is a square-neck bolt, greater shear holding force can be utilized compared to when the first fastening member 30 is other bolts. Therefore, by using square-neck bolts as the first fastening member 30, the size required to achieve a desired holding force can be reduced, or the number of bolts can be reduced, compared to when other bolts are used.

[0063] The second fastening member 31 fastens the sill support beam 11 to the sill 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 penetrates the groove 12b and the second opening 24a to be fixed. The second fastening member 31 may also be another bolt such as a flange bolt.

[0064] The groove 12b is formed to extend along the length direction of the sill 12. Therefore, the second fastening member 31 can be fixed relative to the length direction of the sill 12 (in the longitudinal direction of the sill 12). Figure 2 as well as Figure 3 The sill support beam 11 can be moved in the longitudinal direction (left and right). The mounting position of the sill support beam 11 relative to the sill 12 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 the sill 12 moving in the longitudinal direction.

[0065] The detailed structure of the long hole 20 will be described. Figure 5 This is a diagram illustrating the structure of the long hole in Embodiment 1. The sill support beam fixing portion 21 includes a long hole 20a inclined in a first direction and a long hole 20b inclined in a second direction opposite to the first direction.

[0066] The long hole 20a is formed with a straight portion 22a. The straight portion 22a is perpendicular to the vertical direction (in Figure 5 The arrows in the figure are indicated by a single dotted line) are tilted (in Figure 5 The angle between the straight portion 22a and the vertical direction is +θ°. The straight portion 22b is formed in the long hole 20b. The straight portion 22b is relative to the vertical direction (in Figure 5 The arrows in the figure are indicated by a single dotted line) are tilted (in Figure 5 The angle formed between the straight portion 22b and the vertical direction is -θ°.

[0067] The angle "θ°" is, for example, 45°. There are no particular limitations on the angle "θ°," as long as the straight portion 22a and the straight portion 22b are inclined relative to the vertical direction. This angle can be appropriately determined based on the height adjustment range and holding force of the sill 12. The angle "θ°" is preferably 20° to 70°, more preferably 30° to 60°, and particularly preferably 40° to 50°. The elongated holes 20a and 20b are preferably formed in line symmetry.

[0068] In this manner, this structure uses the elongated holes 20a and 20b, which are inclined in opposite directions, to retain the sill 12. Consequently, the force holding the sill 12 is greater than when all the elongated holes are inclined in the same direction. If any of the first fastening members 30 becomes loose, this will affect the other first fastening members 30. For example, if one of the first fastening members 30 secured via the elongated hole 20a becomes loose, a force will be generated along the straight portion of the elongated hole 20a. In this case, the first fastening member 30 secured via the elongated hole 20b is less susceptible to this force than the first fastening member 30 secured via the elongated hole 20a. Furthermore, the first fastening member 30 secured via the elongated hole 20b resists the force along the straight portion of the elongated hole 20a, thereby preventing the sill 12 from shifting downward due to loosening.

[0069] The operation around the sill 12 will be described. Figure 6 It is a diagram for explaining the movement of the periphery of the sill 12 as viewed from the front. Figure 6 (a) indicates that the sill 12 is at the bottom. Figure 6 (b) shows a state where the sill 12 is at the upper side. Figure 7 It is a diagram for explaining the movement of the periphery of the sill 12 as viewed from the side. Figure 7 (a) indicates that the sill 12 is at the bottom. Figure 7 (b) shows a state where the sill 12 is at the upper side.

[0070] exist Figure 6 (a) and Figure 7 In (a), the first fastening member 30 fastens the sill support beam fixing portion 21 to the sill support beam 11 at the lower end side of the long hole 20. In this state, the height between the floor surface 22 of the car floor 10 and the upper surface 12c of the sill 12 (at Figure 6 as well as Figure 7 The difference between the two positions (in the vertical direction) is H1.

[0071] exist Figure 6 (b) and Figure 7 In (b), the first fastening member 30 fastens the sill support beam fixing portion 21 to the sill support beam 11 at the upper end side of the long hole 20. In this state, the height between the floor surface 22 of the car floor 10 and the upper surface 12c of the sill 12 (at Figure 6 as well as Figure 7 The difference between the two positions (in the vertical direction) is H2. H2 is greater than H1.

[0072] Regarding the operation of adjusting the height of the sill 12, the car floor 10 is in the state of being below ( Figure 6 (a) and Figure 7 (a)) moves to a state where the car floor 10 is above ( Figure 6(b) and Figure 7 The case of (b)) is described as an example. Figure 6 The sill supporting beam 11 is moved in the longitudinal direction of the sill 12 (in the upper left direction) so that the first opening 23a of the sill supporting beam 11 is opposite to the upper end side of the long hole 20. Figure 6 As the sill support beam 11 moves, the second fastening member 31 moves in the longitudinal direction along the groove 12b of the sill 12 (in the left direction). Figure 6 The left direction in the middle), and the sill 12 is upward (in Figure 6 and Figure 7 The first fastening member 30 is fixed at this position. Thus, the height difference between the floor surface 22 of the car floor 10 and the upper surface 12c of the sill 12 is increased from H1 to H2. To reduce the height difference between the floor surface 22 of the car floor 10 and the upper surface 12c of the sill 12, the opposite operation to that for increasing the height difference can be performed.

[0073] When fastening the sill support beam fixing portion 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 relative to the elongated hole 20. This allows for 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, this structure allows for stepless adjustment of the sill 12 height without the need for additional components. The height can be adjusted based on the offset between the car floor 10 and the sill 12, minimizing the step difference between the car floor 10 and the sill 12. This prevents elevator users from tripping and ensures smooth robot movement.

[0074] Implementation method 2.

[0075] The structures of the sill support beam fixing portion 51 and the sill support beam 61 in the second embodiment will be described. Figure 8 This is a front view of the periphery of the sill 12 in the second embodiment. Figure 9 This is a top view of the periphery of the sill 12 in Embodiment 2. Embodiment 2 differs from Embodiment 1 in the arrangement of the long holes 20 and the structure of the periphery thereof. Components identical to those in Embodiment 1 are denoted by the same reference numerals, and their descriptions are omitted.

[0076] The long hole 20a and the long hole 20b are formed in the sill support beam fixing portion 51. The long hole 20a and the long hole 20b are along the length direction of the sill support beam fixing portion 51 (in the direction of the long hole 20a and the long hole 20b). Figure 8The slots 20a and 20b are arranged alternately (in the left-right direction). Specifically, the slots 20a and 20b are arranged alternately in pairs. When viewing the sill support beam fixing portion 51 from the front, the slots 20a, 20a, 20b, 20b, 20a, and 20a are arranged in this order from the left.

[0077] A sill support beam 61 is provided for each of the plurality of alternately formed long holes 20a and long holes 20b. The first and second long holes 20a from the left form a group, the third and fourth long holes 20b from the left form a group, and the fifth and sixth long holes 20a from the left form a group. A sill support beam 61 is provided for each group.

[0078] In the second embodiment, three sill support beams 61 are provided for each of the six elongated holes 20 formed in the sill support beam fixing portion 51. This reduces the number of components used compared to a case where a separate sill support beam fixing portion is provided for each elongated hole 20. Consequently, the height of the sill 12 can be adjusted steplessly with a simpler structure.

[0079] Implementation method 3.

[0080] The structures of the sill support beam fixing portion 71 and the sill support beam 81 in the third embodiment will be described. Figure 10 This is a front view of the periphery of the sill 12 in the third embodiment. Figure 11 This is a top view of the periphery of the sill 12 in Embodiment 3. The arrangement of the long holes 20 and the structure of the periphery in Embodiment 3 differ from those in Embodiment 1. The same components as in Embodiment 1 are denoted by the same reference numerals, and their descriptions are omitted.

[0081] The long hole 20a and the long hole 20b are formed in the sill support beam fixing portion 71. The long hole 20a and the long hole 20b are along the length direction of the sill support beam fixing portion 71 (in the direction of the long hole 20a and the long hole 20b). Figure 10 The slots 20a and 20b are arranged alternately in groups of three (in the left and right directions). Specifically, the slots 20a and 20b are arranged alternately in groups of three. When viewing the sill support beam fixing portion 51 from the front, the slots 20a, 20a, 20a, 20b, 20b, and 20b are arranged in this order from the left.

[0082] A sill support beam 81 is provided for each of the plurality of alternately formed long holes 20a and long holes 20b. The first, second, and third long holes 20a from the left are grouped together, and the fourth, fifth, and sixth long holes 20b from the left are grouped together. A sill support beam 81 is provided for each group.

[0083] In the third embodiment, two sill support beams 81 are provided for each of the six elongated holes 20 formed in the sill support beam fixing portion 71. This reduces the number of components used compared to a case where a separate sill support beam fixing portion is provided for each elongated hole 20. Consequently, the height of the sill 12 can be adjusted steplessly with a simpler structure.

[0084] In the above embodiment, a configuration in which a total of six long holes 20 are provided has been described, but the number of the long holes is not limited thereto.

[0085] The angles "θ°" at which the elongated holes 20a and 20b are inclined in opposite directions may have the same value or different values. The angles "θ°" of the plurality of elongated holes 20a may have the same value or different values. The angles "θ°" of the plurality of elongated holes 20b may have the same value or different values.

[0086] Furthermore, appropriate combinations, modifications, and omissions of the various embodiments are also included within the scope of the technical ideas shown in the embodiments.

[0087] Hereinafter, various aspects of the present disclosure are collectively described as supplementary notes.

[0088] (Note 1)

[0089] An elevator car, comprising:

[0090] a car floor having a sill support beam fixing portion formed with at least one elongated hole;

[0091] at least one sill support beam supported on the car floor;

[0092] a sill having a sliding groove for sliding a car door and supported by the sill supporting beam; and

[0093] a first fastening member, which fastens the sill support beam fixing portion and the sill support beam via the long hole;

[0094] At least a portion of the straight portion of the long hole is inclined with respect to the vertical direction.

[0095] (Note 2)

[0096] The elevator car according to Supplementary Note 1, wherein:

[0097] The sill has a groove extending in the length direction of the sill,

[0098] The elevator car includes a second fastening member that fastens the sill supporting beam and the sill via a groove.

[0099] (Note 3)

[0100] The elevator car according to Supplement 1 or 2, wherein:

[0101] The sill support beam fixing portion is formed with the long hole inclined in a first direction and the long hole inclined in a second direction opposite to the first direction.

[0102] (Note 4)

[0103] The elevator car according to Supplementary Note 3, wherein:

[0104] The long holes inclined in the first direction and the long holes inclined in the second direction are alternately formed one by one along the longitudinal direction of the sill support beam fixing portion.

[0105] (Note 5)

[0106] The elevator car according to Supplement 4, wherein:

[0107] One sill supporting beam is provided for each of the long holes inclined in the first direction and each of the long holes inclined in the second direction.

[0108] (Note 6)

[0109] The elevator car according to Supplementary Note 3, wherein:

[0110] The long holes inclined in the first direction and the long holes inclined in the second direction are alternately formed in plurality along the longitudinal direction of the sill support beam fixing portion.

[0111] (Note 7)

[0112] The elevator car according to Supplementary Note 6, wherein:

[0113] One sill supporting beam is provided for each of the plurality of alternately formed long holes inclined in the first direction and each of the plurality of alternately formed long holes inclined in the second direction.

[0114] (Note 8)

[0115] The elevator car according to any one of Supplementary Notes 1 to 7, wherein:

[0116] The first fastening member is a square neck bolt.

Claims

1. An elevator car, comprising: a car floor having a sill support beam fixing portion formed with at least one elongated hole; at least one sill support beam supported on the car floor; a sill having a sliding groove for sliding the car door and supported by the sill supporting beam; as well as The first fastening member fastens the sill support beam fixing portion and the sill support beam via the long hole, wherein at least a portion of a straight portion of the long hole is inclined with respect to a vertical direction.

2. The elevator car according to claim 1, wherein: The sill has a groove extending in the length direction of the sill, The elevator car includes a second fastening member that fastens the sill supporting beam and the sill via a groove.

3. The elevator car according to claim 1 or 2, wherein: The sill support beam fixing portion is formed with the long hole inclined in a first direction and the long hole inclined in a second direction opposite to the first direction.

4. The elevator car according to claim 3, wherein: The long holes inclined in the first direction and the long holes inclined in the second direction are alternately formed one by one along the longitudinal direction of the sill support beam fixing portion.

5. The elevator car according to claim 4, wherein: One sill supporting beam is provided for each of the long holes inclined in the first direction and each of the long holes inclined in the second direction.

6. The elevator car according to claim 3, wherein: The long holes inclined in the first direction and the long holes inclined in the second direction are alternately formed in plurality along the longitudinal direction of the sill support beam fixing portion.

7. The elevator car according to claim 6, wherein: One sill supporting beam is provided for each of the plurality of alternately formed long holes inclined in the first direction and each of the plurality of alternately formed long holes inclined in the second direction.

8. The elevator car according to claim 1 or 2, wherein: The first fastening member is a square neck bolt.

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