Elevator door device and elevator door system

Abstract

To provide an elevator door device that can be installed efficiently. [Solution] The elevator door device according to this embodiment comprises a hanger rail, a hanger, a door panel, and a pair of hanger rollers. The hanger is slidable along the hanger rail. The door panel is attached to the hanger. The pair of hanger rollers are attached to the hanger and are rotatable on the hanger rail. One of the pair of hanger rollers is a concentric hanger roller. The other of the pair of hanger rollers is an eccentric hanger roller.

Description

Technical Field

[0006] , ,

[0001] The embodiments relate to an elevator door device and an elevator door system.

Background Art

[0002] A door device including a hanger rail, hangers, and door panels is known. A pair of hanger rollers that can roll on the hanger rail are attached to the hangers. The door panels are attached to the hangers. The door panels are hung on the hanger rail via the hangers and the hanger rollers and suspended from the hanger rail. [[ID=U13]] [[ID=U14]]

[0003] [[ID=U15]] In order to adjust the suspension height of the door panel from the hanger rail, both of the pair of hanger rollers may be eccentric hanger rollers. In this case, the contact positions between the pair of eccentric hanger rollers and the hanger rail are adjusted separately. By adjusting the distance between each eccentric hanger roller and the hanger rail, the height of the eccentric hanger roller can be adjusted. As a result, the suspension height and inclination of the door panel can be adjusted. [[ID=U17]] [[ID=U18]]

[0004] [[ID=U19]] However, it is difficult to align the heights of both eccentric hanger rollers. When the heights of both eccentric hanger rollers are not aligned, the door panel with the adjusted suspension height tilts with respect to the hanger rail. As a result, adjustment of the inclination of the door panel is required, and it is conceivable that the time required for installation of the door device increases. [[ID=U21]]

Prior Art Documents

Patent Documents

[0005] [[ID=U29]] [[ID=U30]]

Patent Document 1

Summary of the Invention

Problems to be Solved by the Invention

[0006] [[ID=U42]] The embodiment aims to provide an elevator door device that can be installed efficiently. [Means for solving the problem]

[0007] The elevator door device according to this embodiment comprises a hanger rail, a hanger, a door panel, and a pair of hanger rollers. The hanger is slidable along the hanger rail. The door panel is attached to the hanger. The pair of hanger rollers are attached to the hanger and are rotatable on the hanger rail. One of the pair of hanger rollers is a concentric hanger roller. The other of the pair of hanger rollers is an eccentric hanger roller. [Brief explanation of the drawing]

[0008] [Figure 1] Figure 1 shows an example of an elevator door device according to an embodiment. [Figure 2] Figure 2 is an enlarged view of the first landing door device. [Figure 3] Figure 3 is a perspective view of an eccentric hanger roller. [Figure 4] Figure 4 is a diagram illustrating the operation of the eccentric hanger roller. [Figure 5] Figure 5 shows a shim. [Figure 6] Figure 6 shows a first modified example of the elevator door device of the embodiment. [Figure 7] Figure 7 shows a second modified example of the elevator door device of the embodiment. [Modes for carrying out the invention]

[0009] Embodiments of the present invention will be described with reference to the drawings. For ease of illustration and understanding, the dimensional ratios in the drawings may be changed from the dimensional ratios of the actual object. Components shown in one drawing may be omitted in other drawings.

[0010] The terms used to specify shapes, geometric conditions such as "parallel" and "orthogonal," and values ​​of lengths and angles are not interpreted strictly, but rather within a range that allows for the expectation of similar functionality.

[0011] In the following explanation, the lateral direction D1 and the front-to-back direction D2 are mutually orthogonal directions. The front-to-back direction D2 and the up-and-down direction D3 are mutually orthogonal directions. The lateral direction D1 and the up-and-down direction D3 are mutually orthogonal directions.

[0012] Directions common to multiple drawings are indicated by arrows with a common reference numeral in each drawing. In each illustrated direction, the tip of the arrow is the first side, and the opposite side, i.e., the base of the arrow, is the second side. The first side in a direction perpendicular to the drawing is indicated by a symbol of a circle with a dot inside. The second side in a direction perpendicular to the drawing is indicated by a symbol of a circle with an X inside.

[0013] Figures 1 to 5 are diagrams illustrating an example of an embodiment of the present invention. Figure 1 shows an elevator landing door device 10. Users board and alight from the elevator car (not shown) which moves up and down within the elevator shaft. The landing door device 10 is installed at the elevator landing.

[0014] As shown in Figure 1, a landing door system 5 may be composed of multiple landing door devices 10. The landing door system 5 is a door system 2 applied to a landing. The door system 2 includes multiple door devices 1. The door system 2 may include a first door device 1A and a second door device 1B. The landing door system 5 opens or closes the landing by the multiple landing door devices 10. The landing door system 5 in Figure 1 includes a first landing door device 10A and a second landing door device 10B. In Figure 1, the landing is closed by the first landing door device 10A and the second landing door device 10B.

[0015] Fig. 2 shows an enlarged view of the first landing door device 10A. Hereinafter, the landing door device 10 can be described by referring to the first landing door device 10A in Fig. 2. The content of the description of the landing door device 10 applies to both the first landing door device 10A and the second landing door device 10B, except when the first landing door device 10A or the second landing door device 10B is individually mentioned.

[0016] The landing door device 10 in Figs. 1 and 2 includes a hanger rail 11, a hanger 12, a door panel 13, and a pair of hanger rollers 20. The hanger 12 is slidable along the hanger rail 11. The door panel 13 is attached to the hanger 12. The pair of hanger rollers 20 is attached to the hanger 12 and is rotatable on the hanger rail 11. The door panel 13 is hung on the hanger rail 11 via the hanger 12 and the pair of hanger rollers 20. The door panel 13 is suspended from the hanger rail 11. As shown in Figs. 1 and 2, the landing door device 10 may further include a mounting member 14 for attaching the hanger 12 to the door panel 13, and a shim 15 located between the hanger 12 and the door panel 13.

[0017] In the landing door device 10 of Fig. 1, the lower end of the door panel 13 is separated from the threshold of the landing door device 10 to a certain extent when suspended from the hanger rail 11. The threshold is the installation surface PL of the landing door device 10. The door panel 13 is disposed at a position having a certain height. Hereinafter, the length of the gap G between the lower end of the door panel 13 and the installation surface PL of the door device 1 is also described as the hanging height of the door panel 13.

[0018] The landing door device 10 is interlocked with a car door device (not shown) provided on the car when the car lands. Specifically, when the car door device opens, the landing door device 10 opens. When the car door device closes, the landing door device 10 closes. The landing door device 10 may further include an interlock 40 for maintaining the landing door device 10 in a closed state.

[0019] The hanger rail 11 in Fig. 1 is attached to the header case 16. The header case 16 is disposed above the door panel 13. The header case 16 is attached to the wall surface of the hoistway. The hanger rail 11 may be attached to the three-sided frame of the building (not shown) via the header case 16. The hanger rail 11 fixed to the header case 16 extends in the lateral direction D1.

[0020] As shown in Figs. 1 and 2, one hanger rail 11 is attached to the header case 16. In Fig. 1, the door panels 13 of the first landing door device 10A and the door panels 13 of the second landing door device 10B are suspended from a common hanger rail 11.

[0021] The hangers 12 in Figs. 1 and 2 are hung on the hanger rail 11. The hanger 12 includes a bottom portion 121 and a wall portion 122 extending upward from the bottom portion 121 as shown in Fig. 2. The bottom portion 121 is formed along the lateral direction D1 and the front-rear direction D2. The wall portion 122 is formed along the lateral direction D1 and the vertical direction D3. The door panel 13 is attached to the bottom portion 121 of the hanger 12 from below. A pair of hanger rollers 20 are attached to the wall portion 122 of the hanger 12.

[0022] The pair of hanger rollers 20 in Fig. 2 are attached to the surface of the wall portion 122 on the hanger rail 11 side. Each hanger roller 20 is rotatably attached to the hanger 12 about a rotation axis RX. In Fig. 2, the rotation axis RX is an axis extending parallel to the front-rear direction D2.

[0023] Each hanger roller 20 includes a protruding shaft member 20F that penetrates the hanger 12, extends in the front-rear direction D2, and protrudes from the hanger 12. Each hanger roller 20 is attached to the hanger 12 by a nut N tightened to the protruding shaft member 20F. Each hanger roller 20 has a fixed shaft AX. In Figure 2, the fixed shaft AX is the axis of the protruding shaft member 20F. Also in Figure 2, the fixed shaft AX is the axis of rotation of the nut N relative to the hanger roller 20. The fixed shaft AX is parallel to the front-rear direction D2. Therefore, in the hanger roller 20 of Figure 2, the fixed shaft AX and the axis of rotation RX are parallel.

[0024] In Figures 1 and 2, a pair of hanger rollers 20 are arranged on a hanger rail 11. The pair of hanger rollers 20 are in contact with the hanger rail 11 from above. The pair of hanger rollers 20 have a contact surface 20R that contacts the hanger rail 11 from above. The contact surface 20R in Figure 2 has a cylindrical shape centered on the rotation axis RX. In the landing door device 10 of Figures 1 and 2, the hanger 12 is hung on the hanger rail 11 by the arrangement of the pair of hanger rollers 20 on the hanger rail 11. The door panel 13, which is attached to the hanger 12 from below, is suspended from the hanger rail 11.

[0025] The pair of hanger rollers 20 roll along the hanger rail 11 by rotating relative to the hanger 12 while in contact with the hanger rail 11 from above. The hanger 12 slides along the hanger rail 11 due to the rolling of the pair of hanger rollers 20.

[0026] The landing door device 10 in Figures 1 and 2 includes a pair of hanger rollers 20: a first hanger roller 21 located on the door stop side and a second hanger roller 22 located on the door pocket side. The first hanger roller 21 and the second hanger roller 22 are separated from each other in the lateral direction D1 when attached to the hanger 12. In the first landing door device 10A, the first hanger roller 21 is the hanger roller 20 located on the second landing door device 10B side. In the second landing door device 10B, the first hanger roller 21 is the hanger roller 20 located on the first landing door device 10A side. In Figures 1 and 2, the first hanger roller 21 is a concentric hanger roller 25. The second hanger roller 22 is an eccentric hanger roller 30.

[0027] A concentric hanger roller 25 is a roller in which the position of the fixed axis AX coincides with the position of the rotating axis RX. An eccentric hanger roller 30 is a roller in which the position of the rotating axis RX is offset from the position of the fixed axis AX. The eccentric hanger roller 30 can adjust its contact position with the hanger rail 11 depending on its fixing position to the hanger 12. Depending on the fixing position of the hanger 12, the eccentric hanger roller 30 can move its contact position with the hanger rail 11 higher than the position shown in Figure 2. Depending on the fixing position of the hanger 12, the eccentric hanger roller 30 can move its contact position with the hanger rail 11 lower than the position shown in Figure 2.

[0028] The mechanism for adjusting the contact position between the eccentric hanger roller 30 and the hanger rail 11 will be explained with reference to Figures 3 and 4.

[0029] Figure 3 is a perspective view of the eccentric hanger roller 30. The eccentric hanger roller 30 in Figure 3 includes a roller body 31 and a shaft member 32. The eccentric hanger roller 30 includes a plurality of rolling elements (not shown) located between the roller body 31 and the shaft member 32. The shaft member 32 is fixed to the hanger 12. The roller body 31 is rotatable relative to the shaft member 32 via the plurality of rolling elements. The eccentric hanger roller 30 rotates relative to the hanger 12 about the rotation axis RX in the roller body 31.

[0030] As shown in Figure 3, the roller body 31 may be provided with a groove 31R along its outer circumference. The roller body 31 may contact the hanger rail 11 from above in the portion where the groove 31R is provided. The contact with the hanger rail 11 in the portion where the groove 31R is provided allows the eccentric hanger roller 30 to roll stably on the hanger rail 11.

[0031] The shaft member 32 in Figures 3 and 4 includes a first shaft member 33 and a second shaft member 34 connected to the first shaft member 33. Figure 4 is a view of the shaft member 32 from the axial direction. Figure 4 shows the outer circumferential surface 330 of the first shaft member 33 and the outer circumferential surface 340 of the second shaft member 34. The axes of the first shaft member 33 and the second shaft member 34 are parallel to each other. The axis of the first shaft member 33 coincides with the rotation axis RX of the eccentric hanger roller 30 (roller body 31). That is, the first shaft member 33 is concentric with the roller body 31. The axis of the second shaft member 34 coincides with the fixed axis AX of the eccentric hanger roller 30.

[0032] The second shaft member 34 penetrates the hanger 12. The second shaft member 34 constitutes the protruding portion 20F of the hanger roller 20 described above. The outer circumferential surface 340 of the second shaft member 34 may be provided with a screw that engages with the nut N.

[0033] In Figure 4, the eccentricity of the second shaft member 34 relative to the first shaft member 33 is larger than in Figures 2 and 3, in order to facilitate understanding of the operation of the eccentric hanger roller 30. The eccentricity is the distance between the axis of the first shaft member 33 and the axis of the second shaft member 34 in the radial direction perpendicular to the axis.

[0034] Figure 4 shows the shaft member 32 at the first position P1 and the shaft member 32 at the second position P2. The shaft member 32 at the first position P1 is shown by a solid line. The shaft member 32 at the second position P2 is shown by a dashed line.

[0035] When the shaft member 32 rotates between the first position P1 and the second position P2, the axis of the first shaft member 33 rotates around the axis of the second shaft member 34. The second position P2 is a position rotated 90° from the first position P1 around the axis of the second shaft member 34, that is, around the fixed axis AX of the eccentric hanger roller 30.

[0036] As shown in Figure 4, the lower end of the first shaft member 33 in the shaft member 32 at the second position P2 is located lower than the lower end of the first shaft member 33 in the shaft member 32 at the first position P1. As a result, the lower end of the roller body 31, which is concentric with the first shaft member 33, i.e., the contact position between the eccentric hanger roller 30 and the hanger rail 11, is located lower when the shaft member 32 is in the second position P2 than when the shaft member 32 is in the first position P1.

[0037] As a result of adjusting the position of the shaft member 32 as described above, the contact position between the eccentric hanger roller 30 and the hanger rail 11 is adjusted. By adjusting the contact position between the eccentric hanger roller 30 and the hanger rail 11, the tilt and height of the door panel 13 can be adjusted.

[0038] The shaft member 32 can be rotated, for example, by inserting a flathead screwdriver into a groove 34R provided in the second shaft member 34. After the position of the shaft member 32 in Figures 3 and 4 is adjusted with a flathead screwdriver, it is fixed to the hanger 12 by a nut N that engages with the second shaft member 34.

[0039] The groove 34R shown in Figures 3 and 4 extends radially perpendicular to the axis of the second shaft member 34. In particular, the groove 34R extends in the direction in which the axis of the first shaft member 33 and the axis of the second shaft member 34 are adjacent. The groove 34R extends laterally D1 in the shaft member 32 at the first position P1. The groove 34R extends vertically D3 in the shaft member 32 at the second position P2. As a result, the installer of the landing door device 10 can determine the position of the axis of the first shaft member 33, i.e., the rotation axis RX of the eccentric hanger roller 30, by observing the direction in which the groove 34R extends.

[0040] The concentric hanger roller 25 in Figure 2 may have the same configuration as the eccentric hanger roller 30 described above, except that the first shaft member 33 and the second shaft member 34 are concentric.

[0041] The door panel 13 in Figures 1 and 2 is attached to the hanger 12 from below. As described above, the hanger 12 is slidable along the hanger rail 11. When the door panel 13 is attached to the hanger 12, it is movable laterally in direction D1 relative to the hanger rail 11.

[0042] The door panel 13 is suspended from the hanger rail 11 while attached to the hanger 12. In Figures 1 and 2, the longitudinal direction of the door panel 13 is parallel to the vertical direction D3. The width direction of the door panel 13 is parallel to the horizontal direction D1. In Figure 1, a gap G is created between the lower end of the door panel 13 and the installation surface PL of the landing door device 10.

[0043] The landing door device 10 in Figure 2 includes two mounting members 14. The two mounting members 14 are spaced apart from each other in the lateral direction D1. The mounting members 14 may include bolts, as shown in Figure 2. The bolts in Figure 2 include a head and a shaft portion protruding from the head. The shaft portion may be threaded.

[0044] The mounting member 14 in Figure 2 penetrates the hanger 12. Specifically, the mounting member 14 penetrates the bottom 121 of the hanger 12. The bottom 121 in Figure 2 has a through hole through which the shaft of a bolt can pass. The head of the bolt cannot pass through the through hole. The shaft of the bolt penetrates the hanger 12 and protrudes below the hanger 12. The mounting member 14 may further include a washer positioned between the head of the bolt and the hanger 12.

[0045] In Figure 2, the door panel 13 has a screw hole positioned to overlap with the bolt shaft in the vertical direction D3. The bolt shaft is inserted into the screw hole. The screw hole has a thread that engages with the bolt shaft. In the landing door device 10 of Figure 2, as a result of the bolt shaft being inserted into the screw hole, the door panel 13 is attached to the hanger 12 by the mounting member 14.

[0046] In the landing door device 10 shown in Figure 2, the shim 15 is positioned between the hanger 12 and the door panel 13. Figure 5 shows the shim 15 as viewed from above. In Figure 5, the shim 15 is a plate-shaped member that extends in the lateral direction D1 and the front-to-back direction D2.

[0047] The shim 15 in Figure 5 includes a first end 151 and a second end 152. Each of the first end 151 and the second end 152 is one of the ends of the shim 15 in the longitudinal direction D2. In Figure 5, each of the first end 151 and the second end 152 extends in the lateral direction D1. In Figure 5, the first end 151 is the first end of the shim 15 in the longitudinal direction D2. The second end 152 is the second end of the shim 15 in the longitudinal direction D2.

[0048] The shim 15 in Figure 5 includes two recesses 15R at the first end 151 that are recessed in the front-rear direction D2 toward the second end 152. The two recesses 15R are spaced apart from each other in the lateral direction D1. The positions of the recesses 15R correspond to the positions of the bolts used to attach the door panel 13 to the hanger 12. The recesses 15R are also sized to allow the bolt shafts to pass through when the shim 15 is positioned between the hanger 12 and the door panel 13. As a result, the shim 15 in Figure 5 can be positioned in the gap between the hanger 12 and the door panel 13 even when the door panel 13 is attached to the hanger 12 by the mounting member 14.

[0049] The landing door device 10 may include multiple shims 15. The thicknesses of the multiple shims 15 may differ. In the landing door device 10 of Figure 2, when at least one of the number and thickness of the shims 15 increases, the distance between the hanger 12 and the door panel 13 in the vertical direction D3 increases over the entire width, i.e., the entire horizontal direction D1. In the landing door device 10, the lower end of the door panel 13 approaches the floor over the entire width as the number of shims 15 increases. Therefore, in the landing door device 10, the length between the lower end of the door panel 13 and the floor can be adjusted over the entire width by adjusting the number of shims 15.

[0050] In the landing door system 5 of Figure 1, the first landing door device 10A includes a first interlock 41. The second landing door device 10B includes a second interlock 42. Both the first interlock 41 and the second interlock 42 are interlocks 40 for maintaining the landing door device 10 in a closed state. The first interlock 41 is located on the door stop side of the first landing door device 10A. The second interlock 42 is located on the door stop side of the second landing door device 10B. The first interlock 41 and the second interlock 42 have different configurations.

[0051] As shown in Figure 1, the interlock device 45 is composed of a first interlock 41 and a second interlock 42. The landing door system 5 includes the interlock device 45. The interlock device 45 is a device for restricting unintended operation of the elevator. The interlock device 45 in Figure 1 may also restrict unintended opening of the landing.

[0052] The interlock device 45 in Figures 1 and 2 includes a restricting device 46. The restricting device 46 is a device for restricting the unintended opening of the landing. Specifically, the restricting device 46 is a device for restricting the unintended movement of the landing door device 10 toward the door pocket side. The restricting device 46 is configured to take between a restricted state and an unrestricted state. In the restricted state, the restricting device 46 maintains the landing door device 10 in a closed state.

[0053] In the landing door system 5 shown in Figures 1 and 2, the restricted state is a state in which the lateral movement D1 of the first landing door device 10A and the second landing door device 10B is restricted. In other words, the restricted state is a state in which the first landing door device 10A and the second landing door device 10B are kept in a closed state. The unrestricted state is a state in which the restriction on the lateral movement D1 of the first landing door device 10A and the second landing door device 10B is released.

[0054] The restricting device 46 in Figures 1 and 2 includes a latch 461 provided on the first interlock 41 and a latch receiver 462 provided on the second interlock 42. The latch 461 in Figures 1 and 2 is engaged with the latch receiver 462. When the latch 461 is engaged with the latch receiver 462, the restricting device 46 is in a restricted state. When the latch 461 is not engaged with the latch receiver 462, the restricting device 46 is in an unrestricted state.

[0055] The interlock device 45 in Figures 1 and 2 further includes a sensor device 47. The sensor device 47 is a device for detecting the state of the landing door device 10. The sensor device 47 includes a first wiring 471 provided in the first interlock 41 and a second wiring 472 provided in the second interlock 42.

[0056] In Figures 1 and 2, the first wiring 471 and the second wiring 472 are electrically connected to each other. The first wiring 471 and the second wiring 472 are in contact with each other. When the first wiring 471 and the second wiring 472 are electrically connected to each other, the sensor device 47 detects that the landing door device 10 is closed. When the electrical connection between the first wiring 471 and the second wiring 472 is released, the sensor device 47 detects that the landing door device 10 is open.

[0057] The sensor device 47 may be electrically connected to a control device (not shown) that controls the operation of the elevator car. The control device may control the operation of the elevator car based on the detection results of the sensor device 47. The control device may restrict the movement of the elevator car when the sensor device 47 detects that the landing door device 10 is open.

[0058] In the first landing door device 10A shown in Figures 1 and 2, the first interlock 41 includes a pivot shaft portion 411, a latch 461 extending from the pivot shaft portion 411, and a first wiring 471 extending from the tip of the latch 461. The latch 461 is pivotable relative to the hanger 12. The pivot shaft portion 411 includes a bearing (not shown) for allowing the latch 461 to pivot relative to the hanger 12. The latch 461 is pivotable clockwise around a pivot shaft SX parallel to the front-rear direction D2, from the state shown in Figures 1 and 2, i.e., the state in which it is hooked onto the latch receiver 462.

[0059] The first interlock 41 in Figures 1 and 2 may be able to swing from the state shown in Figures 1 and 2 when the elevator car lands. The restricting device 46 in Figure 1 may be in the unrestricted state when the elevator car lands. The restricting device 46 may be in the restricted state at times other than when the elevator car lands.

[0060] In the interlock device 45 shown in Figures 1 and 2, the first wiring 471 and the second wiring 472 are electrically connected when the restricting device 46 is in a restricted state, that is, when the latch 461 is engaged with the latch receiver 462. When the latch 461 engaged with the latch receiver 462 swings, the first wiring 471, located at the tip of the latch 461, swings together with the latch 461. As a result, in the interlock device 45 shown in Figures 1 and 2, when the latch 461 engaged with the latch receiver 462 swings, the electrical connection between the first wiring 471 and the second wiring 472 is released.

[0061] In the first landing door device 10A in Figures 1 and 2, the first interlock 41 is located closer to the first hanger roller 21 than to the second hanger roller 22. As described above, the first hanger roller 21 in Figures 1 and 2 is a concentric hanger roller 25. Therefore, in the first landing door device 10A in Figures 1 and 2, the concentric hanger roller 25 is located closer to the first interlock 41 than to the eccentric hanger roller 30. In the first landing door device 10A, the first interlock 41 is located closer to the door stop than to the eccentric hanger roller 30.

[0062] In the second landing door device 10B of Figure 1, the second interlock 42 includes a latch receiver 462 and a second wiring 472 positioned above the latch receiver 462. The latch receiver 462 in Figures 1 and 2 is a plate-shaped member that extends in the lateral direction D1 and the front-rear direction D2. The latch receiver 462 is provided with a through hole that penetrates the latch receiver 462 in the vertical direction D3. In the restricting device 46 of Figures 1 and 2, the latch receiver 462 restricts the movement of the latch 461 in the lateral direction D1 by the tip of the latch 461 passing through the through hole.

[0063] In the first landing door device 10A of Figure 1, the second interlock 42 is located closer to the first hanger roller 21 than to the second hanger roller 22. The first hanger roller 21 in Figure 1 is a concentric hanger roller 25. Therefore, in the first landing door device 10A of Figure 1, the concentric hanger roller 25 is located closer to the second interlock 42 than to the eccentric hanger roller 30. In the second landing door device 10B, the second interlock 42 is located closer to the door stop than to the eccentric hanger roller 30.

[0064] The interlocks 40 in Figures 1 and 2 are attached to the hanger 12. The interlocks 40 are movable relative to the hanger rail 11 together with the hanger 12. The first interlock 41 is movable to the second side in the lateral direction D1 together with the hanger 12 of the first landing door device 10A when the restricting device 46 is in the release state. The second interlock 42 is also movable to the first side in the lateral direction D1 together with the hanger 12 of the first landing door device 10A when the restricting device 46 is in the release state.

[0065] The operation of the landing door device 10 having the above configuration will be explained. Specifically, the method of installing the landing door device 10 will be explained. The method of installing the landing door device 10 described below includes a preparation step, an installation step, a tilt adjustment step, and a height adjustment step, in this order.

[0066] A discrepancy may occur between the actual hanging position of the door panel 13 and the assumed hanging position due to product tolerances of the components of the landing door device 10. The tilt adjustment process and the height adjustment process are processes for adjusting the hanging position of the door panel 13. The hanging position of the door panel 13 includes the hanging height of the door panel 13 and the tilt of the door panel 13.

[0067] In the preparation process, the hanger rail 11, hanger 12, door panel 13, mounting member 14, shim 15, pair of hanger rollers 20, and interlock 40 are brought into the building. Multiple shims 15 may be brought into the building. Some of the multiple shims 15 brought into the building may be used. The shims 15 brought into the building may not be used. In the preparation process, the pair of hanger rollers 20 may be brought into the building already attached to the hanger 12.

[0068] In the preparation process, the interlock 40 may be brought into the building attached to the hanger 12. The first interlock 41 may be brought into the building attached to the hanger 12 of the first landing door device 10A. The second interlock 42 may be brought into the building attached to the hanger 12 of the second landing door device 10B.

[0069] In the preparation process, the hanger 12 with the position of the interlock 40 adjusted may be brought into the building. The positions of the first interlock 41 and the second interlock 42 may be adjusted in the hanger 12 of the first landing door device 10A and the hanger 12 of the second landing door device 10B so that the latch 461 can be engaged with the latch receiver 462. The positions of the first interlock 41 and the second interlock 42 may be adjusted in the hanger 12 of the first landing door device 10A and the hanger 12 of the second landing door device 10B so that the first wiring 471 and the second wiring 472 can be electrically connected to each other.

[0070] During the installation process, the door panel 13, which has been brought into the building, is attached to the hanger 12. The door panel 13 is attached to the hanger 12, which already has a pair of hanger rollers 20 and an interlock 40 installed.

[0071] During the installation process, the hanger 12 is placed on the hanger rail 11. By placing the hanger 12 on the hanger rail 11, the pair of hanger rollers 20 come into contact with the hanger rail 11 from above. The hanger 12 may be placed on the hanger rail 11 with the door panel 13 already attached.

[0072] In the tilt adjustment process, the tilt of the door panel 13 is adjusted. As described above, the tilt of the door panel 13 is adjusted by adjusting the contact position between the eccentric hanger roller 30 and the hanger rail 11. The tilt of the door panel 13 may be adjusted so that the longitudinal direction of the door panel 13 is approximately parallel to the vertical direction D3. The tilt of the door panel 13 may be adjusted so that the width direction of the door panel 13 is approximately parallel to the horizontal direction D1.

[0073] In the height adjustment process, the distance between the hanger 12 and the door panel 13 is adjusted so that the gap G described above reaches a desired value. In the landing door device 10 shown in Figures 1 and 2, the distance between the hanger 12 and the door panel 13 is increased by loosening the bolts included in the mounting member 14. In the height adjustment process, a shim 15 is inserted according to the target value of the gap G. The distance between the hanger 12 and the door panel 13 is maintained at an increased state over the entire width by the thickness of the inserted shim 15. In the landing door device 10, it is not necessary to insert a shim 15 between the hanger 12 and the door panel 13.

[0074] As described above, the shim 15 includes a recess 15R at its first end 151 that is recessed in the front-rear direction D2 toward the second end 152. The recess 15R has dimensions that allow the mounting member 14 to pass through. As described above, the shim 15 includes a recess 15R, so that the shim 15 can be placed in the gap between the hanger 12 and the door panel 13 even when the door panel 13 is attached to the hanger 12 by the mounting member 14. This allows for efficient adjustment of the hanging height of the door panel 13 without removing the door panel 13 from the hanger 12.

[0075] As a result of the above process, the landing door device 10 is installed in the building. As a result of the installation of the first landing door device 10A and the second landing door device 10B by the above method, the double-leaf landing door system 5 shown in Figure 1 is installed.

[0076] The landing door device 10 may be installed by replacing parts of an existing door device. For example, in a door device that includes a pair of eccentric hanger rollers, the landing door device 10 may be installed by replacing one of the eccentric hanger rollers with a concentric hanger roller.

[0077] In conventional door systems, both of the hanger rollers can be eccentric hanger rollers. The contact position between the eccentric hanger roller and the hanger rail is movable upward or downward. Conventional door systems include a first eccentric hanger roller and a second eccentric hanger roller. Each of the first and second eccentric hanger rollers is mounted on a hanger and is capable of rolling along the hanger rail. For various reasons, such as stable operation of the door system and compliance with legal regulations regarding the hanging height of the door panel, the hanging height of the door panel may be adjusted. In conventional door systems, both the contact position between the first eccentric hanger roller and the hanger rail, and the contact position between the second eccentric hanger roller and the hanger rail are adjusted to adjust the hanging height of the door panel.

[0078] In a door system, a pair of eccentric hanger rollers are positioned apart from each other to stably suspend the door panel from the hanger rail. The contact positions of the first eccentric hanger roller and the hanger rail, and the contact positions of the second eccentric hanger roller and the hanger rail, are adjusted separately. Aligning the contact positions of the first eccentric hanger roller and the hanger rail, and the contact positions of the second eccentric hanger roller and the hanger rail, is difficult. When the contact positions with the hanger rail differ between the first and second eccentric hanger rollers, the door panel, with its adjusted suspension height, may tilt relative to the hanger rail. That is, in a conventional door system, adjustment of the tilt caused by the adjustment of the suspension height may be necessary. Furthermore, the adjustment of the tilt may necessitate readjustment of the adjusted suspension height. As a result, a problem may arise in door systems including the first and second eccentric hanger rollers: the time required for installation may increase.

[0079] In contrast, in the landing door device 10 shown in Figures 1 and 2, one of the pair of hanger rollers 20 is a concentric hanger roller 25, and the other of the pair of hanger rollers 20 is an eccentric hanger roller 30. When the illustrated landing door device 10 is installed, the tilt of the door panel 13 can be adjusted by the eccentric hanger roller 30 in the tilt adjustment process described above. Because the landing door device 10 includes the eccentric hanger roller 30, the tilt of the door panel 13 can be adjusted while the door panel 13 is suspended from the hanger rail 11.

[0080] On the other hand, in the height adjustment process described above, it is avoided that the contact position between the eccentric hanger roller 30 and the hanger rail 11 needs to be adjusted. This prevents the door panel 13 from tilting due to the adjustment of its suspension height. Therefore, when installing the illustrated landing door device 10, it is possible to avoid readjusting the tilt caused by the adjustment of the suspension height of the door panel 13.

[0081] As a result, the landing door device 10 can reduce the time required for installation compared to conventional door devices. In other words, the landing door device 10 can be installed more efficiently than conventional door devices.

[0082] The landing door device 10 described above includes a mounting member 14 for attaching the hanger 12 to the door panel 13, and a shim 15 positioned between the hanger 12 and the door panel 13. According to the illustrated landing door device 10, the hanging height of the door panel 13, i.e., the length of the gap G, can be adjusted during the height adjustment process. This makes it possible to stabilize the hanging height of the door panel 13 regardless of the product tolerances of the components of the landing door device 10.

[0083] The landing door device 10 described above further includes an interlock 40 for maintaining the landing door device 10 in a closed state. The concentric hanger roller 25 is located closer to the interlock 40 than the eccentric hanger roller 30. In the illustrated landing door device 10, the positioning of the interlock 40 away from the eccentric hanger roller 30 suppresses displacement of the interlock 40 due to changes in the tilt of the door panel 13. This reduces the risk of readjustment of the position of the interlock 40 attached to the hanger 12 even when the tilt of the door panel 13 is adjusted.

[0084] In the specific example of the embodiment described above, the door device 1 comprises a hanger rail 11, a hanger 12, a door panel 13, and a pair of hanger rollers 20. The hanger 12 is slidable along the hanger rail 11. The door panel 13 is attached to the hanger 12. The pair of hanger rollers 20 are attached to the hanger 12 and are rotatable on the hanger rail 11. One of the pair of hanger rollers 20 is a concentric hanger roller 25. The other of the pair of hanger rollers 20 is an eccentric hanger roller 30.

[0085] Next, modified examples of the embodiments will be described. In the description of the modified examples, Figures 6 and 7 will be referenced as necessary. In the following description of the modified examples, and in Figures 6 and 7, parts that can be configured in the same way as in the above-described specific example will be given the same reference numerals as in the above-described specific example. In the following description of the modified examples, explanations that overlap with the above-described specific example will be omitted.

[0086] The specific example of the door system 2 described above was a double door. The door system 2 included two door panels 13 that could move in opposite directions. The double door system 2 is not limited to the specific example described above. The double door system 2 may include two sets of door panels 13 that can move in opposite directions. Each set of door panels 13 may include two door panels 13 that can move in the same direction. Therefore, the double door system 2 may include four door panels 13.

[0087] As shown in Figure 6, the door system 2 may include two door panels 13 that are movable toward each other in the same direction. That is, the door system 2 may be single-leaf. Figure 6 shows a landing door system 5 different from Figure 1 as a first modification of an embodiment of the present invention. The landing door system 5 of Figure 6 includes a first landing door device 10A and a second landing door device 10B. In Figure 6, the landing is closed by the first landing door device 10A and the second landing door device 10B. In the first landing door device 10A, the door panel 13 moves to the first side in the lateral direction D1 when the first landing door device 10A is opened. In the second landing door device 10B, the door panel 13 moves to the first side in the lateral direction D1 when the second landing door device 10B is opened, similar to the first landing door device 10A. Therefore, the landing door system 5 in Figure 1 is single-leaf.

[0088] The landing door system 5 in Figure 6 may include a door pocket (not shown) that houses the door panel 13 when the landing is opened. In a single-leaf landing door system 5, the door pocket may be located on the first side in the lateral direction D1 relative to the second landing door device 10B. That is, when the first landing door device 10A and the second landing door device 10B close the landing, the door panel 13 of the second landing door device 10B may be positioned between the door panel 13 of the first landing door device 10A and the door pocket. In the first landing door device 10A and the second landing door device 10B in Figure 6, the second side in the lateral direction D1 is the door pocket side.

[0089] In the double-opening landing door system 5, the direction opposite to the door pocket side may be described as the door stop side. In the first landing door device 10A and the second landing door device 10B, the direction away from the door pocket may be described as the door stop side. In the first landing door device 10A and the second landing door device 10B, the second side in the lateral direction D1 is the door stop side.

[0090] In the first landing door device 10A of Figure 6, the second hanger roller 22, located on the door pocket side of the pair of hanger rollers 20, is an eccentric hanger roller 30. In the second landing door device 10B, the first hanger roller 21, located on the door stop side of the pair of hanger rollers 20, is an eccentric hanger roller 30. Also, in the first landing door device 10A of Figure 6, the first hanger roller 21, located on the door stop side of the pair of hanger rollers 20, is a concentric hanger roller 25. In the second landing door device 10B, the second hanger roller 22, located on the door pocket side of the pair of hanger rollers 20, is a concentric hanger roller 25. As a result, in the landing door system 5 of Figure 6, when the landing is closed, the hanger roller 20 located on the second landing door device 10B side of the pair of hanger rollers 20 in the first landing door device 10A is an eccentric hanger roller 30. When the landing is closed, the hanger roller 20 of the pair of hanger rollers 20 of the second landing door device 10B that is located on the side of the first landing door device 10A becomes an eccentric hanger roller 30.

[0091] As shown in Figure 6, the arrangement of the concentric hanger roller 25 and the eccentric hanger roller 30 allows the installer of the landing door system 5 to perform the tilt adjustment process for the second landing door device 10B at the same location where the tilt adjustment process for the first landing door device 10A is performed. This reduces the time required to install the landing door system 5.

[0092] In the specific example described above, the first interlock 41 was attached to the first landing door device 10A, and the second interlock 42 was attached to the second landing door device 10B. That is, both the first interlock 41 and the second interlock 42 were attached to the landing door device 10. In contrast, as shown in Figure 6, either the first interlock 41 or the second interlock 42 may be attached to the landing door device 10. The other of the first interlock 41 or the second interlock 42 may be attached to the building. In Figure 6, the first interlock 41 is attached to the first landing door device 10A. The second landing door device 10B does not have an interlock 40 attached.

[0093] As shown in Figure 7, the hanger 12 may include a mark 50 indicating the position of the rotation axis RX of the eccentric hanger roller 30. The mark 50 in Figure 7 is provided on the wall portion 122 of the hanger 12. The mark 50 is provided in a position where it can be observed by the installer of the door device 1. The mark 50 in Figure 7 includes multiple scales that radiate outwards from the fixed axis AX of the eccentric hanger roller 30. In Figure 7, each of the multiple scales is linear.

[0094] Figure 7 shows the eccentric hanger rollers 30 at the third position P3 and the fourth position P4 superimposed. The eccentric hanger roller 30 at the third position P3 is indicated by the first dashed line. The eccentric hanger roller 30 at the fourth position P4 is indicated by the second dashed line, which has larger spacing and dimensions between line elements than the first dashed line.

[0095] In Figure 7, the position of the eccentric hanger roller 30 is adjusted so that the groove 34R provided in the second shaft member 34 and one of the multiple scales are aligned on the same straight line. In the eccentric hanger roller 30 at the third position P3, the groove 34R provided in the second shaft member 34 and the first scale 51 of the mark 50 are aligned on the same straight line L3. In the eccentric hanger roller 30 at the fourth position P4, the groove 34R provided in the second shaft member 34 and the second scale 52 of the mark 50 are aligned on the same straight line L4.

[0096] As described above, the direction in which the groove 34R extends is the direction in which the fixed axis AX and the rotation axis RX of the eccentric hanger roller 30 are adjacent. In Figure 7, when the groove 34R and one of the multiple scales are aligned on the same straight line, the rotation axis RX of the eccentric hanger roller 30 is positioned between the fixed axis AX of the eccentric hanger roller 30 and one of the multiple scales. Therefore, the position of the rotation axis RX of the eccentric hanger roller 30 can be determined by the mark 50 provided on the hanger 12.

[0097] By aligning the direction in which the groove 34R provided in the second shaft member 34 extends with the direction in which one of the multiple scales extends, the positional relationship between the fixed shaft AX and the rotating shaft RX in the eccentric hanger roller 30 can be stabilized. By stabilizing the positional relationship between the fixed shaft AX and the rotating shaft RX, the amount of variation in the tilt of the door panel 13 in the tilt adjustment process described above can be stabilized. Furthermore, by aligning the straight line parallel to the groove 34R between the eccentric hanger rollers 30 of different landing door devices 10, the tilt of the door panel 13 can also be aligned between different landing door devices 10. Therefore, with the landing door device 10 including the mark 50, the time required for adjusting the suspension height can be reduced.

[0098] In the specific example described above, the door device 1 was applied to the elevator landing. However, it is not limited to this, and the door device 1 may also be applied to the elevator car. As a result of the application of the door device 1 to the car, the car door device may include the hanger rail 11, hanger 12, door panel 13, and a pair of hanger rollers 20 described above. In the car door device, one of the pair of hanger rollers 20 may be a concentric hanger roller 25, and the other of the pair of hanger rollers 20 may be an eccentric hanger roller 30. Similarly, the door system 2 may also be applied to the elevator car.

[0099] According to the embodiments described above, the time required to install the door device 1 is reduced, and the door device 1 can be installed efficiently. In particular, when an elevator including the door device 1 is applied to a building, the construction period required to install the elevator in the building can be shortened.

[0100] While several embodiments of the present invention have been described, these embodiments are presented as examples only and are not intended to limit the scope of the invention. These novel embodiments can be implemented in a variety of other forms, and various omissions, substitutions, and modifications can be made without departing from the spirit of the invention. These embodiments and their variations are included in the scope and spirit of the invention, as well as in the claims and their equivalents. [Explanation of symbols]

[0101] 1: Door device, 1A: First door device, 1B: Second door device, 2: Door system, 5: Landing door system, 10: Landing door device, 10A: First landing door device, 10B: Second landing door device, 11: Hanger rail, 12: Hanger, 13: Door panel, 14: Mounting component, 15: Shim, 20: Hanger roller, 21: First hanger roller, 22: Second hanger roller, 25: Concentric hanger roller, 30: Eccentric hanger roller, 40: Interlock, 41: First interlock, 42: Second interlock, 45: Interlock device, 50: Mark

Claims

1. Hanger rail and A hanger that can slide along the aforementioned hanger rail, A door panel attached to the aforementioned hanger, The hanger is equipped with a pair of hanger rollers that are attached to the hanger and can roll along the hanger rail, One of the pair of hanger rollers is a concentric hanger roller, An elevator door device in which the other of the pair of hanger rollers is an eccentric hanger roller.

2. A mounting member for attaching the hanger to the door panel, The elevator door device according to claim 1, further comprising a shim located between the hanger and the door panel.

3. The door device is further provided with an interlock for maintaining the door in a closed state. The elevator door device according to claim 1, wherein the concentric hanger roller is located closer to the interlock than the eccentric hanger roller.

4. The elevator door device according to claim 1, wherein the hanger includes a mark indicating the position of the rotation axis of the eccentric hanger roller.

5. First door device and A second door device is provided, The first door device and the second door device are door devices according to any one of claims 1 to 4. Of the pair of hanger rollers of the first door device, the hanger roller located on the second door device side is the eccentric hanger roller. An elevator door system in which, of the pair of hanger rollers of the second door device, the hanger roller located on the first door device side is the eccentric hanger roller.

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