Sliding door arrangement

Abstract

To provide a sliding door device capable of reducing the size of a front-to-rear direction of a guide portion that guides a front door and a rear door provided on a support portion in a manner that enables sliding movement, and capable of restraining the front door and the rear door without causing shaking in any mode. The solution is to provide a first guide portion (43) and a second guide portion (44) in the support portion (40), a first outer side stop portion (45) and a first inner side stop portion (46) in the first guide portion (43), and a second outer side stop portion (47) and a second inner side stop portion (48) in the second guide portion (44). A rear outer side abutting portion (23) provided on the rear door (20) and a front inner side abutting portion (34) provided on the front door (30) move in the first guide portion (43), and a rear inner side abutting portion (24) provided on the rear door (20) and a front outer side abutting portion (33) provided on the front door (30) move in the second guide portion (44).

Description

Technical Field

[0001] This invention relates to a sliding door device in which the rear door and the front door overlap and slide together. Background Technology

[0002] Patent Document 1 describes a vehicle-mounted device equipped with a monitor. The monitor includes a display unit holder, a display unit, and a tilting mechanism for tilting the display unit left and right relative to the display unit holder. In the tilting mechanism, abutment portions are provided on the left and right sides of the back of the display unit, and inclined portions are provided on the left and right sides of the display unit holder. The display unit moves left and right along the inclined portions of the display unit holder via its abutment portions. When the display unit reaches its limit, the abutment portions on the display unit abut against a flat portion of the display unit holder, and the flat portion acts as a stop to bring the display unit to a stop. The tilted state is maintained by the load of a load-bearing component, including gears.

[0003] Existing technical documents Patent documents Patent Document 1: Japanese Patent Application Publication No. 2019-212943 Summary of the Invention

[0004] The problem that the invention aims to solve As described in Patent Document 1, in order to move the display component in the left-right direction and maintain it in a stopped state, it is necessary to provide guide components for guiding the display component in the left-right direction and stop components for maintaining the state of the display component after moving in either direction. These components each occupy a large space behind the display component. This invention relates to a sliding door device in which the rear door and the front door overlap and slide, but in a door device with two doors that can move freely, the guide components and stop components need to be provided behind each door, requiring a total of two sets. Therefore, a wider space is needed behind each door. Furthermore, in order to maintain the rear door and the front door in a stopped state by means of the stop components, a complex stop component structure is required.

[0005] In order to solve the above-mentioned problems, the present invention aims to provide a sliding door device that minimizes the space occupied by the guide portion for sliding the rear door and the front door, and reliably maintains the stopped state of the rear door and the front door through a stop portion with a simple structure.

[0006] Methods for solving problems This invention provides a sliding door device, comprising a sliding rear door, a sliding front door in front of the rear door, and a drive mechanism for sliding the rear door and the front door respectively, characterized in that... The system is configured with a closed mode, a first open mode, and a second open mode. In the closed mode, the rear door moves in a first direction and the front door moves in a second direction, opposite to the first direction, via the drive mechanism. In the first open mode, the front door overlaps with the rear door after it has moved in the first direction. In the second open mode, the rear door overlaps with the front door after it has moved in the second direction. The rear door has a rear outer abutment and a rear inner abutment spaced apart in the sliding direction, and the front door has a front outer abutment and a front inner abutment spaced apart in the sliding direction. The support portion is provided with a guide portion extending in the sliding direction, and the rear outer abutment portion and the front inner abutment portion move along the same guide portion.

[0007] In the sliding door device of the present invention, along the guide portion, the front inner abutment portion is located in a second direction closer to the rear outer abutment portion. Along the guide portion, the front outer abutment portion is located in a second direction position compared to the rear inner abutment portion.

[0008] In the sliding door device of the present invention, it is preferable that the support portion is provided with a first outer stop portion and a second outer stop portion spaced apart in the sliding direction. In the closed mode, the rear outer abutment portion is pressed against the first outer stop portion, and the front outer abutment portion is pressed against the second outer stop portion.

[0009] In the sliding door device of the present invention, preferably in the first opening mode, the front outer abutment portion is pressed against the rear inner abutment portion, and in the second opening mode, the rear outer abutment portion is pressed against the front inner abutment portion.

[0010] Furthermore, in the sliding door device of the present invention, preferably in the first opening mode, the rear outer abutment portion is pressed against the first outer stop portion, and the front inner abutment portion is pressed against the rear outer abutment portion. In the second open mode, the front outer abutment portion is pressed against the second outer stop portion, and the rear inner abutment portion is pressed against the front outer abutment portion.

[0011] The sliding door device of the present invention can be configured such that a first guide portion and a second guide portion are provided in the support portion. The rear outer abutment portion and the front inner abutment portion move along the first guide portion, and the front outer abutment portion and the rear inner abutment portion move along the second guide portion.

[0012] The sliding door device of the present invention can be configured such that a first guide portion and a second guide portion are provided in the support portion. The rear outer abutment portion and the front inner abutment portion move along the first guide portion, and the front outer abutment portion and the rear inner abutment portion move along the second guide portion. In the first guide portion, a first outer stop portion and a first inner stop portion are provided at a distance from each other in the sliding direction; in the second guide portion, a second outer stop portion and a second inner stop portion are provided at a distance from each other in the sliding direction. In the closed mode, the rear inner abutment portion is pressed against the second inner stop portion, and the front inner abutment portion is pressed against the first inner stop portion.

[0013] Furthermore, the sliding door device of the present invention can be configured such that a first guide portion and a second guide portion are provided in the support portion. The rear outer abutment portion and the front inner abutment portion move along the first guide portion, and the front outer abutment portion and the rear inner abutment portion move along the second guide portion. In the first guide portion, a first outer stop portion and a first inner stop portion are provided at a distance from each other in the sliding direction; in the second guide portion, a second outer stop portion and a second inner stop portion are provided at a distance from each other in the sliding direction. In the first open mode, the rear inner abutment portion is pressed against the second inner stop portion, and the front outer abutment portion is pressed against the rear inner abutment portion. In the second open mode, the front inner abutment portion is pressed against the first inner stop portion, and the rear outer abutment portion is pressed against the front inner abutment portion.

[0014] In the sliding door device of the present invention, it is preferable that the first guide portion and the second guide portion are located on the same line extending along the sliding direction.

[0015] The sliding door device of the present invention may also be such that the rear outer abutment portion and the front inner abutment portion, as well as the front outer abutment portion and the rear inner abutment portion, move along the same guide portion.

[0016] In the sliding door device of the present invention, it is preferable that the first outer stop and the second outer stop are inclined stop portions. Further, it is preferable that the first inner stop and the second inner stop are inclined stop portions.

[0017] In the sliding door device of the present invention, preferably the front outer abutment portion is pressed against the rear inner abutment portion by the inclined portion, and the rear outer abutment portion is pressed against the front inner abutment portion by the inclined portion.

[0018] Furthermore, in the sliding door device of the present invention, preferably the front inner abutment portion is pressed against the rear outer abutment portion by the inclined portion, and the rear inner abutment portion is pressed against the front outer abutment portion by the inclined portion.

[0019] Invention Effects The sliding door device of the present invention is configured such that the rear outer abutment portion and the front inner abutment portion move along the same guide portion, thereby eliminating the need to provide separate guide portions for the front door and guide portions for the rear door, reducing the space occupied by the guide portion at the rear of each door, and enabling the sliding door device to be made thinner.

[0020] For example, by pressing the front outer abutment against the rear inner abutment in the first open mode and the rear outer abutment against the front inner abutment in the second open mode, a complex stop structure is not required, and the front door and the rear door can be kept in a stopped state in the open mode. Attached Figure Description

[0021] Figure 1 The figure shown is a perspective view of the sliding door device in the closed mode, viewed from the front, illustrating the first embodiment of the present invention.

[0022] Figure 2 This is a perspective view of a sliding door device in its closed mode, showing the first embodiment of the present invention, viewed from the rear.

[0023] Figure 3 This is a perspective view showing the relative positions of the rear door and the front door of the sliding door device in the closed mode, as viewed from the rear, illustrating the first embodiment of the present invention.

[0024] Figure 4 This is a diagram illustrating the first embodiment of the present invention, and is a bottom view of a sliding door device in its closed mode with the front facing downwards.

[0025] Figure 5AThis diagram illustrates the positional relationship between the rear outer abutment portion and the guide portion of the sliding door device according to the first embodiment of the present invention in the closed mode. Figure 3 The cross-sectional view of the part corresponding to the right part R shown is truncated by the line of sight from 5A-5A.

[0026] Figure 5B This diagram illustrates the positional relationship between the rear inner abutment portion and the front inner abutment portion and the guide portion of the sliding door device according to the first embodiment of the present invention in the closed mode. Figure 3 The cross-sectional view of the part corresponding to the central part C shown is cut off by line of sight from 5B-5B.

[0027] Figure 5C This diagram illustrates the positional relationship between the front outer abutment portion and the guide portion of the sliding door device according to the first embodiment of the present invention in the closed mode. Figure 3 The cross-sectional view of the part corresponding to the left portion L that is cut off by the line of sight from 5C-5C.

[0028] Figure 6 This is a perspective view of the sliding door device in the first opening mode, showing the first embodiment of the present invention, viewed from the front.

[0029] Figure 7 This is a perspective view showing the relative positions of the rear door and the front door of the sliding door device in the first opening mode, as viewed from the rear, illustrating the first embodiment of the present invention.

[0030] Figure 8 This is a diagram illustrating the first embodiment of the present invention, and is a bottom view of the sliding door device in the first opening mode with the front facing downwards in the diagram.

[0031] Figure 9A This diagram illustrates the positional relationship between the rear outer abutment portion and the front inner abutment portion and the guide portion of the sliding door device according to the first embodiment of the present invention in the first open mode. Figure 7 The cross-sectional view of the part corresponding to the right part R shown is truncated by the line of sight from 9A-9A.

[0032] Figure 9B This diagram illustrates the positional relationship between the rear inner abutment portion and the front outer abutment portion and the guide portion of the sliding door device according to the first embodiment of the present invention in the first open mode. Figure 7 The cross-sectional view of the part corresponding to the central part C shown is cut off by 9B-9B along the line of sight.

[0033] Figure 10 The figure shows the first embodiment of the present invention and is a perspective view of the sliding door device in the second opening mode as viewed from the front.

[0034] Figure 11 This is a perspective view showing the relative positions of the rear door and the front door of the sliding door device in the second opening mode, as viewed from the rear, illustrating the first embodiment of the present invention.

[0035] Figure 12 This is a diagram illustrating the first embodiment of the present invention, and is a bottom view of the sliding door device in the second opening mode with the front facing downwards in the diagram.

[0036] Figure 13A This diagram illustrates the positional relationship between the front outer abutment portion and the rear inner abutment portion and the guide portion of the sliding door device according to the first embodiment of the present invention in the second open mode. Figure 11 The cross-sectional view of the part corresponding to the left portion L shown is truncated by the line of sight from 13A-13A.

[0037] Figure 13B This diagram illustrates the positional relationship between the front inner abutment portion and the rear outer outer abutment portion of the sliding door device according to the first embodiment of the present invention in the second open mode, and is consistent with... Figure 11 The cross-sectional view of the part corresponding to the central part C shown is cut off from the line of sight by 13B-13B.

[0038] Figure 14 This is a partially exploded perspective view showing the rear door and front door of the sliding door device according to the first embodiment of the present invention separated from each other.

[0039] Figure 15 This is a perspective view of the support portion used in the sliding door device according to the first embodiment of the present invention, viewed from the front.

[0040] Figure 16 This is a partially exploded perspective view of the assembly state of the rear door and front door with the support portion used in the sliding door device of the first embodiment of the present invention, viewed from below.

[0041] Figure 17 This is a diagram illustrating the first embodiment of the present invention, (A) is Figure 2 The enlarged cross-sectional view of the sliding door device shown is the portion cut off from the line of sight by 17A-17A. (B) is... Figure 2 Enlarged cross-sectional view of the sliding door device shown, partially obscured by 17B-17B in the line of sight.

[0042] Figure 18 (A) is a perspective view showing the shapes of the rear outer abutment portion and the rear inner abutment portion used in the sliding door device according to the first embodiment of the present invention, and (B) is a perspective view showing the shapes of the front outer abutment portion and the front inner abutment portion used in the sliding door device according to the first embodiment of the present invention.

[0043] Figure 19 The diagrams show the operation of the sliding door device according to the second embodiment of the present invention. (A) is an explanatory diagram showing the closing mode, (B) is an explanatory diagram showing the first opening mode, and (C) is an explanatory diagram showing the second opening mode.

[0044] Figure 20 This is a perspective view showing the abutment and stop portion used in the sliding door device according to the third embodiment of the present invention.

[0045] Figure 21 This is an explanatory diagram showing a sliding door device according to the third embodiment of the present invention.

[0046] Figure 22 The diagrams show the operation of the sliding door device according to the third embodiment of the present invention. (A) is an explanatory diagram showing the closing mode, (B) is an explanatory diagram showing the first opening mode, and (C) is an explanatory diagram showing the second opening mode.

[0047] Figure 23 This is an explanatory diagram showing a sliding door device according to the fourth embodiment of the present invention.

[0048] Figure 24 The diagrams show the operation of the sliding door device according to the fourth embodiment of the present invention. (A) is an explanatory diagram showing the closed mode, (B) is an explanatory diagram showing the first open mode, and (C) is an explanatory diagram showing the second open mode.

[0049] Marker description 1. Vehicle-mounted device 2. Opening 10 Sliding door assembly 20 Rear door 23 Rear outer abutment part 24. Rear inner contact part 23a, 24a Outwardly inclined parts 23b, 24b Inwardly inclined part 26 outer rollers 27 Inner Rollers 30. Front door 33 Front outer abutment part 34 Front inner contact part 33a, 34a Outwardly inclined parts 33b and 34b inwardly inclined parts 36 outer rollers 37 Inner Roller 40 Support section 43 First Guiding Section 44. Second Guiding Section 45. First outer stop section 46 First inner stop 47 Second outer stop 48 Second inner stop 60 Rear drive mechanism 65 Front drive mechanism 110 Sliding door device 123 Rear outer abutment part 124 Rear inner contact part 133 Front outer abutment part 134 Front inner contact part 145 First outer stop 147 Second outer stop 210 Sliding door assembly 223 Rear outer abutment part 224 Rear inner contact part 233 Front outer abutment part 234 Front inner contact part 245 First outer stop 246 First inner stop 247 Second outer stop 248 Second inner stop 310 Sliding door assembly 323 Rear outer abutment part 324 Rear inner contact part 333 Front outer abutment part 334 Front inner contact part 345 First outer stop 347 Second outer stop R right side C Central Section L Left side Detailed Implementation

[0050] <First Embodiment> Figures 1 to 18 This refers to a sliding door device according to the first embodiment of the present invention.

[0051] (Structure of the sliding door device) Figure 1 The vehicle-mounted device 1 is embedded in or integrally formed with the dashboard or instrument panel at the front of the passenger compartment of a vehicle. The vehicle-mounted device 1 includes the sliding door device 10 of the first embodiment of the present invention. However, the sliding door device 10 is not limited to the vehicle-mounted device 1 and can also be mounted on various devices for purposes other than vehicle use.

[0052] For the sliding door device 10, the X1-X2 direction is horizontal, with X1 being the rightward direction and the first direction, and X2 being the leftward direction and the second direction. Additionally, the X1-X2 direction is the sliding direction of the rear and front doors. The Y1-Y2 direction is the front-to-back direction, with Y1 being the forward direction and Y2 being the rearward direction. The Z1-Z2 direction is vertical, with Z1 being the upward direction and Z2 being the downward direction.

[0053] like Figure 1 As shown, the vehicle-mounted device 1 has a housing 2, and the housing 2 has an opening 3 that opens forward (in the Y1 direction). The sliding door device 10 has a rear door 20 and a front door 30. The rear door 20 slides laterally (in the X1-X2 direction), and the front door 30 slides laterally in front of the rear door 20 (in the Y1 direction). Figure 1 In the closed configuration shown, the opening 3 is sealed off by the rear door 20 and the front door 30. Figure 6 The first open mode shown and Figure 10 In the second opening mode shown, a portion of the opening 3 is open, allowing access to the interior space of the housing 2.

[0054] Figure 3 and Figure 14 This diagram illustrates the structure of the rear door 20 and the front door 30 as viewed from the rear. The rear door 20 has a rear door body 21, and the front door 30 has a front door body 31. The rear door body 21 and the front door body 31 are display panels such as liquid crystal display panels or electroluminescent panels, and almost the entire front surface of each door body facing forward (Y1 direction) is used for display. Alternatively, only a portion of the front surface of the rear door body 21 and the front door body 31 may be used as the display area, or the rear door body 21 and the front door body 31 may not have a display function and may only function as doors.

[0055] like Figure 14 As shown, in the rear door 20, a sliding bracket 22 extending laterally (X1-X2 direction) is fixed to the lower part of the rear surface of the rear door body 21. Figure 16 and Figure 17As shown in (B), a spacer 28 extending rearward (in the Y2 direction) is fixed between the rear surface of the rear door body 21 and the sliding bracket 22. The sliding bracket 22 is fixed at a position slightly away from the rear surface of the rear door body 21 in the Y2 direction. On the sliding bracket 22, a portion on the X1 side extends rearward to form an upwardly curved support piece 22a, and a rear outer abutment portion (rear outer slider) 23 is fixed on the forward-facing (Y1 direction) support surface of the support piece 22a. In addition, on the sliding bracket 22, a portion on the X2 side extends rearward to form an upwardly curved support piece 22b, and a rear inner abutment portion (rear inner slider) 24 is fixed on the forward-facing support surface of the support piece 22b.

[0056] like Figure 14 As shown, a roller bracket 25 is fixed to the upper part of the rear surface of the rear door body 21. A roller shaft 26a is fixed to the X1 side end of the roller bracket 25, and an outer roller 26 is rotatably supported on the roller shaft 26a. A roller shaft 27a is fixed to the X2 side end of the roller bracket 25, and an inner roller 27 is rotatably supported on the roller shaft 27a. The roller shafts 26a and 27a are not parallel to the front-rear direction (X1-X2 direction), but are inclined upwards and backwards (Y2 direction). In addition, a rack 29 extending in the sliding direction (X1-X2 direction) is integrally formed on the roller bracket 25.

[0057] like Figure 14 As shown, in the front door 30, a bracket 32 ​​is fixed to the rear surface of the front door body 31. An outer support plate 32a extending rearward is fixed to the lower X2 side of the bracket 32. An upwardly curved support piece 32c is formed on the outer support plate 32a, and a front outer abutment portion (front outer slider) 33 is fixed to the forward-facing (Y1 direction) support surface of the support piece 32c. An inner support plate 32b extending rearward is fixed to the lower X1 side of the bracket 32. An upwardly curved support piece 32d is formed on the inner support plate 32b, and a front inner abutment portion (front inner slider) 34 is fixed to the forward-facing support surface of the support piece 32d. A roller support piece 32e extending rearward (Y2 direction) is formed in the middle of the transverse (X1-X2 direction) portion of the bracket 32. A roller shaft 38a extending vertically upward (in the Z1 direction) is fixed on the roller support plate 32e, and a support roller 38 is rotatably supported on the roller shaft 38a.

[0058] like Figure 14As shown, a roller bracket 35 is fixed to the upper part of the rear surface of the front door body 31. A roller shaft 36a is fixed to the X2 side end of the roller bracket 35, and an outer roller 36 is rotatably supported on the roller shaft 36a. A roller shaft 37a is fixed to the X1 side end of the roller bracket 35, and an inner roller 37 is rotatably supported on the roller shaft 37a. The roller shafts 36a and 37a are not parallel to the front-rear direction (X1-X2 direction), but are inclined upwards and backwards (Y2 direction). Figure 3 As shown, in the combined state of the rear door 20 and the front door 30, the outer roller 26 and inner roller 27 provided on the rear door 20 and the outer roller 36 and inner roller 37 provided on the front door 30 are arranged in a row in the sliding direction (X1-X2 direction). In addition, a rack 39 extending in the sliding direction (X1-X2 direction) is integrally formed on the roller support 35.

[0059] like Figure 18 As shown in (A), the rear outer abutment portion 23 and the rear inner abutment portion 24 provided on the rear door 20 have the same shape and are both formed of a synthetic resin material with a low coefficient of friction. The rear outer abutment portion 23 has an outwardly inclined portion 23a facing the X1 direction and an inwardly inclined portion 23b facing the X2 direction. The rear inner abutment portion 24 also has an outwardly inclined portion 24a facing the X1 direction and an inwardly inclined portion 24b facing the X2 direction. The outwardly inclined portions 23a and 24a and the inwardly inclined portions 23b and 24b are all inclined surfaces that slope towards the X2 direction as they face forward (Y1 direction).

[0060] like Figure 18 As shown in (B), the front outer abutment portion 33 and the front inner abutment portion 34 provided on the front door 30 have the same shape and are both formed of a synthetic resin material with a low coefficient of friction. The front outer abutment portion 33 has an outwardly inclined portion 33a facing the X2 direction and an inwardly inclined portion 33b facing the X1 direction. The front inner abutment portion 34 also has an outwardly inclined portion 34a facing the X2 direction and an inwardly inclined portion 34b facing the X1 direction. The outwardly inclined portions 33a and 34a are inclined surfaces that slope towards the X1 direction as they face forward (Y1 direction), and the inwardly inclined portions 33b and 34b are inclined surfaces that slope towards the X2 direction as they face forward.

[0061] The sliding door device 10 has a support portion 40, and the rear door 20 and the front door 30 are slidably supported by the support portion 40. Figure 2 The overall structure of the sliding door assembly 10 and its support 40 are shown from the rear. Figure 4 , Figure 8 as well as Figure 12 This shows the overall structure of the sliding door device 10 and the bottom surface of the support part 40. Figure 15 The support portion 40 of the unit is shown from the front. Figure 16 The rear door 20, the front door 30, and the support 40 are shown diagonally below. (Example) Figure 15 As shown, the support portion 40 is a structure formed by connecting two frames arranged laterally (X1-X2 direction). The lower part of the support portion 40 is a lower guide support portion 41 extending in the sliding direction (X1-X2 direction). Figure 15 As shown, the forward-facing (Y1 direction) surface of the lower guide support 41 is a sliding support surface 42 parallel to the XZ plane.

[0062] like Figure 16 As shown, a first guide portion 43 and a second guide portion 44 are provided inside the lower guide support portion 41 of the support portion 40. The first guide portion 43 and the second guide portion 44 are straight grooves extending linearly along the sliding direction (X1-X2 direction) and open on the bottom surface 41a of the lower guide support portion 41. Alternatively, the first guide portion 43 and the second guide portion 44 may also be elongated straight holes extending along the sliding direction and penetrating in the vertical direction (Z1-Z2 direction) within the lower guide support portion 41. Figure 4 , Figure 8 as well as Figure 12 As shown, the centers of the groove widths of the first guide portion 43 and the second guide portion 44 are located on the same line extending along the sliding direction (X1-X2 direction). Figure 16 As shown, the X1-side end of the straight groove of the first guide portion 43 is the first outer stop portion 45, and the X2-side end of the straight groove of the first guide portion 43 is the first inner stop portion 46. Furthermore, the X2-side end of the straight groove of the second guide portion 44 is the second outer stop portion 47, and the X1-side end of the straight groove of the second guide portion 44 is the second inner stop portion 48.

[0063] The first outer stop portion 45 and the first inner stop portion 46 are spaced apart in the sliding direction (X1-X2 direction), and the second inner stop portion 48 and the second outer stop portion 47 are also spaced apart in the sliding direction. Furthermore, the first outer stop portion 45 and the second outer stop portion 47 are also spaced apart in the sliding direction.

[0064] Figure 5A and Figure 9A This is an enlarged cross-sectional view of the right side portion R of the lower guide support portion 41 viewed from above. As shown in this enlarged cross-sectional view, the first outer stop portion 45 is an inclined stop portion that tilts in the X2 direction as it faces forward (Y1 direction). Figure 5C and Figure 13A This is an enlarged cross-sectional view of the left side portion L of the lower guide support portion 41 viewed from above. As shown in this enlarged cross-sectional view, the second outer stop portion 47 is an inclined stop portion that tilts in the X1 direction as it faces forward (Y1 direction). Figure 5B and Figure 9B as well as Figure 13B This is an enlarged cross-sectional view of the central portion C of the lower guide support portion 41 viewed from above. As shown in this enlarged cross-sectional view, the first inner stop portion 46 is an inclined stop portion that tilts in the X1 direction as it faces forward (Y1 direction), and the second inner stop portion 48 is an inclined stop portion that tilts in the X2 direction as it faces forward (Y1 direction).

[0065] like Figure 4 and Figure 16 As shown, a roller guide portion 49 is formed inside the lower guide support portion 41 of the support portion 40. The roller guide portion 49 is a straight groove that is open on the bottom surface 41a of the lower guide support portion 41 and extends in the sliding direction (X1-X2 direction). Alternatively, it may be a straight elongated hole that extends through the lower guide support portion 41 in the vertical direction (Z1-Z2 direction). The roller guide portion 49 is located rearward (Y2 direction) than the first guide portion 43 and the second guide portion 44, and is formed parallel to the straight grooves of both the first guide portion 43 and the second guide portion 44.

[0066] like Figure 2 as well as Figure 3 , Figure 7 , Figure 11 As shown, a guide rail 50 is fixed to the upper part of the support portion 40. The guide rail 50 extends in a straight line along the sliding direction (X1-X2 direction). Figure 17 (A) indicates the cross-sectional shape of guide rail 50. In the cross-sectional view, guide rail 50 has a first rolling surface 51 inclined relative to both the front-rear direction (Y1-Y2 direction) and the vertical direction (Z1-Z2 direction), and a second rolling surface 52, also inclined relative to both the front-rear direction and the vertical direction, intersecting the first rolling surface 51 at an angle of less than 180 degrees. For example... Figure 17 As shown in (A), the surfaces of the outer roller 26 and inner roller 27 provided on the rear door 20 and the outer roller 36 and inner roller 37 provided on the front door 30 are the first cone surface T1 and the second cone surface T2, which intersect each other at an angle of less than 180 degrees.

[0067] Figure 1 , Figure 2 , Figure 4 , Figure 6 , Figure 8 , Figure 10 as well as Figure 12 This indicates the assembled state of the sliding door assembly 10. During the assembly process, such as... Figure 16As shown, the rear outer abutment portion 23, located at the lower part of the rear door 20, is inserted into the groove of the first guide portion 43, and the rear inner abutment portion 24 is inserted into the groove of the second guide portion 44. Similarly, the front outer abutment portion 33, located at the lower part of the front door 30, is inserted into the groove of the second guide portion 44, and the front inner abutment portion 34 is inserted into the groove of the first guide portion 43. Along the first guide portion 43 (within the first guide portion 43), the front inner abutment portion 34 is positioned further in the second direction (X2 direction) than the rear outer abutment portion 23, and along the second guide portion 44 (within the second guide portion 44), the front outer abutment portion 33 is positioned further in the second direction than the rear inner abutment portion 24. Furthermore, as... Figure 16 As shown, the support roller 38 provided at the lower part of the front door 30 is inserted into the roller guide 49 formed in the lower guide support part 41.

[0068] like Figure 17 As shown in (B), the sliding bracket 22, fixed at the lower part of the rear surface of the rear door 20, slidably abuts against the forward-facing surface of the lower guide support 41, i.e., the sliding support surface 42. Through the sliding bracket 22 and the rear outer abutment portion 23 and rear inner abutment portion 24 inserted into each guide portion 43, 44, the lower guide support 41 is clamped from the front and rear, thereby positioning and allowing the lower part of the rear door 20 relative to the support portion 40 in the front-rear direction (Y1-Y2 direction) and enabling it to slide. Figure 17 As shown in (B), the front outer abutment portion 33 and the front inner abutment portion 34 are inserted into the guide portions 43 and 44, and the support roller 38 is inserted into the roller guide portion 49, so that the lower part of the front door 30 is positioned relative to the support portion 40 in the front-rear direction (Y1-Y2 direction) and can slide.

[0069] like Figure 2 , Figure 7 as well as Figure 11 As shown, the outer rollers 26 and inner rollers 27 on the rear door 20 and the outer rollers 36 and inner rollers 37 on the front door 30 are arranged in a row in the transverse direction (X1-X2 direction) and are supported freely on the guide rails 50 fixed to the support part 40. Figure 17 As shown in (A), the first conical surface T1 formed on each of the rollers 26, 27, 36, and 37 rolls on the first rolling surface 51 of the guide rail 50, and the second conical surface T2 rolls on the second rolling surface 52. The contact surfaces of the first conical surface T1 and the first rolling surface 51 and the contact surfaces of the second conical surface T2 and the second rolling surface 52 form an angle of less than 180 degrees, and each contact surface is not parallel to the front-back direction (Y1-Y2 direction) and the up-down direction (Z1-Z2 direction). Therefore, the upper part of the rear door 20 and the upper part of the front door 30 are positioned relative to the support part 40 in the front-back direction (Y1-Y2 direction) and can slide.

[0070] like Figure 17 As shown in (A) and (B), the rear door 20 is positioned relative to the support portion 40 in the vertical direction (Z1-Z2 direction) by the lower sliding bracket 22 and the upper outer roller 26 and inner roller 27. The front door 30 is positioned by the outer support plate 32a and the inner support plate 32b fixed on the lower part of the bracket 32 ​​(see reference). Figure 14 The outer roller 36 and inner roller 37 above are positioned relative to the support 40 in the vertical direction (Z1-Z2 direction).

[0071] like Figure 2 As shown, a rear drive mechanism 60 and a front drive mechanism 65 are provided behind the support portion 40. In the rear drive mechanism 60, a motor 62 is fixed on a drive bracket 61 fixed to the support portion 40. The power of the motor 62 is transmitted to a pinion 64 through a worm gear reducer 63, which serves as a load reduction mechanism. The pinion 64 meshes with a rack 29 fixed to the rear door 20. In the front drive mechanism 65, a motor 67 is fixed on a drive bracket 66 fixed to the support portion 40. The power of the motor 67 is transmitted to a pinion 69 through a worm gear reducer 68, which serves as a load reduction mechanism. The pinion 69 meshes with a rack 39 fixed to the front door 30. Through the power of the motor 62 in the rear drive mechanism 60 and the power of the motor 67 in the front drive mechanism 65, the rear door 20 and the front door 30 are driven to slide laterally (in the X1-X2 direction), respectively.

[0072] (Off mode) Figures 1 to 5C Sliding door device 10 indicating the closed mode. For example... Figure 1 , Figure 2 , Figure 3 as well as Figure 4 As shown, in the closed mode of the sliding door device 10, the power of the motor 62 mounted on the rear drive mechanism 60 is transmitted from the pinion 64 to the rack 29, causing the rear door 20 to slide in the first direction (X1 direction). The power of the motor 67 mounted on the front drive mechanism 65 is transmitted from the pinion 69 to the rack 39, causing the front door 30 to slide in the second direction (X2 direction). Figure 1 As shown, in the closed mode, the opening 3 of the housing 2 is closed by the rear door 20 and the front door 30.

[0073] Figure 5A yes Figure 3 The cross-sectional view shown is a portion R on the right side, which is truncated along the line of sight at 5A-5A. Figure 5B It is a cross-sectional view of the central part C, which is cut off by the line of sight from 5B-5B. Figure 5C It is a cross-sectional view of the left part L being cut off by the line of sight from 5C-5C. Figure 3The illustrations of the first guide portion 43 and the second guide portion 44 of the lower guide support portion 41 are omitted, but... Figure 5A , Figure 5B and Figure 5C The cross-sectional shapes of the first guide portion 43 and the second guide portion 44 are shown. In the closed mode, the power is supplied by the motor 62 mounted on the rear drive mechanism 60, such as... Figure 5A As shown, the rear outer abutment portion 23 of the rear door 20 is pressed against the X1 side end of the first guide portion 43, i.e., the first outer stop portion 45, as shown. Figure 5B As shown, the rear inner abutment portion 24 of the rear door 20 is pressed against the end of the second guide portion 44 on the X1 side, i.e., the second inner stop portion 48. If the motor 62 stops in this state, the load of the worm gear reduction mechanism 63, which serves as a load reduction mechanism, maintains the state in which the rear outer abutment portion 23 is pressed against the first outer stop portion 45 and the rear inner abutment portion 24 is pressed against the second inner stop portion 48. Figure 5A As shown, since the outwardly inclined portion 23a of the rear outer abutment portion 23 is pressed against the first outer stop portion 45, which serves as an inclined stop portion, the rear outer abutment portion 23 is constrained in the front-rear direction (Y1-Y2 direction) within the first guide portion 43. Figure 5B As shown, since the outwardly inclined portion 24a of the rear inner abutment portion 24 is pressed against the second inner stop portion 48, which serves as an inclined stop portion, the rear inner abutment portion 24 is constrained in the front-back direction (Y1-Y2 direction) within the second guide portion 44.

[0074] In the off mode, the power from the motor 67 mounted on the front drive mechanism 65, such as... Figure 5C As shown, the front outer abutment portion 33 of the front door 30 is pressed against the X2 side end of the second guide portion 44, i.e., the second outer stop portion 47, as shown. Figure 5B As shown, the front inner abutment portion 34 of the front door 30 is pressed against the end of the first guide portion 43 on the X2 side, i.e., the first inner stop portion 46. If the motor 67 stops in this state, the load of the worm gear reduction mechanism 68, which serves as a load reduction mechanism, maintains the state in which the front outer abutment portion 33 is pressed against the second outer stop portion 47 and the front inner abutment portion 34 is pressed against the first inner stop portion 46. Figure 5C As shown, because the outwardly inclined portion 33a of the front outer abutment portion 33 is pressed against the second outer stop portion 47, which serves as an inclined stop portion, the front outer abutment portion 33 is constrained in the front-rear direction (Y1-Y2 direction) within the second guide portion 44. Figure 5BAs shown, since the outwardly inclined portion 34a of the front inner abutment portion 34 is pressed against the first inner stop portion 46, which serves as an inclined stop portion, the front inner abutment portion 34 is constrained in the front-back direction (Y1-Y2 direction) within the first guide portion 43.

[0075] like Figure 5A , Figure 5B as well as Figure 5C As shown, the rear outer abutment portion 23 and the rear inner abutment portion 24 are constrained in the front-rear direction within the guide portions 43 and 44, as... Figure 17 As shown in (A), the first conical surface T1 and the second conical surface T2 of the outer roller 26 and the inner roller 27 are constrained on the guide rail 50 in the front-back direction and the vertical direction. Therefore, in the closed mode, the rear door 20 can maintain a closed posture relative to the support portion 40 without wobbling. Similarly, since the front outer abutment portion 33 and the front inner abutment portion 34 are constrained within the guide portions 43 and 44, and the outer roller 36 and the inner roller 37 are held on the guide rail 50, the front door 30 can maintain a closed posture relative to the support portion 40 without wobbling.

[0076] (First Open Mode) Figures 6 to 9B This indicates the first open mode. For example... Figure 6 , Figure 7 as well as Figure 8 As shown, during the transition to the first open mode, in the closed mode, the rear door 20 moves in the first direction (X1 direction) and is held in place by the support 40. The motor 67 of the front drive mechanism 65 is activated, and the front door 30 is moved in the first direction (X1 direction), overlapping the rear door 20 in front of it. Figure 6 As shown, in the first open mode, half of the opening 3 of the housing 2 in the second direction (X2 direction) is open.

[0077] Figure 9A yes Figure 7 The cross-sectional view shown is a portion R on the right side, which is truncated along the line of sight from 9A-9A. Figure 9B It is a cross-sectional view of the central part C, which is cut off by the line of sight from 9B-9B. Figure 7 The illustrations of the first guide portion 43 and the second guide portion 44 of the lower guide support portion 41 are omitted, but... Figure 9A and Figure 9B The cross-sectional shapes of the first guide portion 43 and the second guide portion 44 are shown in the figure. Figure 9A As shown, in the first open mode, the rear outer abutment portion 23 of the rear door 20 is pressed against the first outer stop portion 45 (maintaining a pressed state), and the front inner abutment portion 34 of the front door 30 is pressed against the rear outer abutment portion 23 in the first direction (X1 direction). Additionally, as... Figure 9B As shown, the rear inner abutment portion 24 of the rear door 20 is pressed against the second inner stop portion 48 (maintaining a pressed state), and the front outer abutment portion 33 of the front door 30 is pressed against the rear inner abutment portion 24 in the first direction (X1 direction). If the motor 67 stops in this state, the load of the worm gear reduction mechanism 68, which serves as a load reduction mechanism, maintains the state in which the front inner abutment portion 34 is pressed against the rear outer abutment portion 23 and the front outer abutment portion 33 is pressed against the rear inner abutment portion 24.

[0078] like Figure 9A As shown, the inwardly inclined portion 34b of the front inner abutment portion 34 is pressed against the inwardly inclined portion 23b of the rear outer abutment portion 23, as... Figure 9B As shown, the inwardly inclined portion 33b of the front outer abutment portion 33 is pressed against the inwardly inclined portion 24b of the rear inner abutment portion 24, so that the front door 30, when moved to the open position, can maintain a state of constraint relative to the support portion 40 in the front-rear direction. Therefore, in the first open mode, it is possible to prevent the rear door 20 and the front door 30 from shaking.

[0079] (Second Open Mode) Figures 10 to 13B This indicates the second open mode. For example... Figure 10 , Figure 11 as well as Figure 12 As shown, during the transition to the second open mode, in the closed mode, the front door 30 moves in the second direction (X2 direction) and is held in place by the support 40. The motor 62 of the rear drive mechanism 60 is activated, and the rear door 20 moves in the second direction (X2 direction), overlapping the rear door 30. Figure 10 As shown, in the second open mode, half of the opening 3 of the housing 2 in the first direction (X1 direction) is opened.

[0080] Figure 13A yes Figure 11 The cross-sectional view shown is a portion L on the left side, which is truncated along the line of sight from 13A-13A. Figure 13B It is a cross-sectional view of the central part C, which is cut off by the line of sight from 13B-13B. Figure 11 The illustrations of the first guide portion 43 and the second guide portion 44 of the lower guide support portion 41 are omitted, but... Figure 13A and Figure 13B The cross-sectional shapes of the first guide portion 43 and the second guide portion 44 are shown in the figure. Figure 13AAs shown, in the second opening mode, the front outer abutment portion 33 of the front door 30 is pressed against the second outer stop portion 47 (maintaining the pressed state), and the rear inner abutment portion 24 of the rear door 20 is pressed against the front outer abutment portion 33 in the second direction (X2 direction). Additionally, as... Figure 13B As shown, the front inner abutment portion 34 of the front door 30 is pressed against the first inner stop portion 46 (maintaining a pressed state), and the rear outer abutment portion 23 of the rear door 20 is pressed against the front inner abutment portion 34 in the second direction (X2 direction). If the motor 62 stops in this state, the load of the worm gear reduction mechanism 63, which serves as a load reduction mechanism, maintains the state in which the rear inner abutment portion 24 is pressed against the front outer abutment portion 33 and the rear outer abutment portion 23 is pressed against the front inner abutment portion 34.

[0081] like Figure 13A As shown, the inwardly inclined portion 24b of the rear inner abutment portion 24 is pressed against the inwardly inclined portion 33b of the front outer abutment portion 33, as... Figure 13B As shown, the inwardly inclined portion 23b of the rear outer abutment portion 23 is pressed against the inwardly inclined portion 34b of the front inner abutment portion 34, thus the rear door 20, when moved to the open position, can maintain a state of constraint relative to the support portion 40 in the front-rear direction. Therefore, in the second open mode, it is possible to prevent the rear door 20 and the front door 30 from shaking.

[0082] In the sliding door device 10 of the first embodiment, such as Figure 5A and Figure 9A As shown, an outwardly inclined portion 23a is formed on the rear outer abutment portion 23, and the first outer stop portion 45 is an inclined stop portion, but it is sufficient that at least one of the rear outer abutment portion 23 and the first outer stop portion 45 has an inclined portion. That is, it is sufficient that the rear outer abutment portion 23 and the first outer stop portion 45 abut against each other through the inclined portion. This is also the case between the first inner stop portion 46, the second outer stop portion 47, the second inner stop portion 48 and the other abutment portions 24, 33, 34. In addition, as Figure 9A As shown, an inwardly inclined portion 23b is formed on the rear outer abutment portion 23, and an inwardly inclined portion 34b is formed on the front inner abutment portion 34. However, it is sufficient that at least one of the rear outer abutment portion 23 and the front inner abutment portion 34 has an inclined portion. That is, it is sufficient that the rear outer abutment portion 23 and the front inner abutment portion 34 abut against each other through the inclined portions. This is in Figure 13A The front outer abutment portion 33 and the rear inner abutment portion 24 shown are located between them. Figure 9B and Figure 13B The other contact parts shown are also in the same way.

[0083] In the sliding door device 10 of the first embodiment, the bottom surface 41a of the support portion 41 is guided at the lower part of the support portion 40. The first guide portion 43 and the second guide portion 44 are arranged in the same straight line extending in the sliding direction (X1-X2 direction). The rear outer abutment portion 23 provided on the rear door 20 and the front inner abutment portion 34 provided on the front door 30 move along the same first guide portion 43, and the rear inner abutment portion 24 provided on the rear door 20 and the front outer abutment portion 33 provided on the front door 30 move along the same second guide portion 44. Therefore, as Figure 4 , Figure 8 as well as Figure 12 As shown, the dimensions of the mechanism used to guide the rear door 20 and the front door 30 in the front-rear direction (Y1-Y2 direction) can be reduced, making the sliding door device 10 thinner. Furthermore, in any of the closed mode, the first open mode, and the second open mode, the rear door 20 and the front door 30 can be held in place without wobbling.

[0084] <Second Implementation> Figure 19 (A), (B), and (C) schematically represent only the main parts of the sliding door device 110 according to the second embodiment of the present invention. The sliding door device 110 has a guide portion (straight groove or straight elongated hole) extending laterally (X1-X2 direction) at the lower guide support portion 41 of the support portion 40. All abutments of the rear outer abutment portion 123 and rear inner abutment portion 124 provided on the rear door 20, and the front outer abutment portion 133 and front inner abutment portion 134 provided on the front door 30, are slidably inserted into the same guide portion. The front inner abutment portion 134 is located on the second direction (X2 direction) side compared to the rear outer abutment portion 123, and the front outer abutment portion 133 is located on the second direction (X2 direction) side compared to the rear inner abutment portion 124. The shapes of the rear outer abutment portion 123 and the rear inner abutment portion 124, as well as the front outer abutment portion 133 and the front inner abutment portion 134, are similar to... Figure 18 The rear outer abutment portion 23 and the rear inner abutment portion 24 of the first embodiment shown in (A) are the same.

[0085] Figure 19(A) indicates the sliding door device 110 in the closed mode. The rear door 20 is moved in a first direction (X1 direction), and in the right portion R, the rear outer abutment portion 123 is pressed against the first outer stop portion 145 in the first direction (X1 direction) via an inclined portion. The front door 30 is moved in a second direction (X2 direction), and in the left portion L, the front outer abutment portion 133 is pressed against the second outer stop portion 147 in the second direction (X2 direction) via an inclined portion. In the central portion C, the rear inner abutment portion 124, which is subjected to a moving force in the X1 direction, and the front inner abutment portion 134, which is subjected to a moving force in the X2 direction, press against each other within the guide portion via an inclined portion. Thus, the rear door 20 and the front door 30 in the closed mode are held in place without wobbling.

[0086] exist Figure 19 In the first opening mode shown in (B), while maintaining the closed posture of the rear door 20 after sliding in the first direction (X1 direction), the front door 30 is moved in the first direction (X1 direction). The front inner abutment portion 134 is pressed against the rear outer abutment portion 123 in the first direction (X1 direction) via the inclined portion, and the front outer abutment portion 133 is pressed against the rear inner abutment portion 124 in the first direction (X1 direction) via the inclined portion.

[0087] Figure 19 In the second opening mode shown in (C), while maintaining the closed posture of the front door 30 after sliding in the second direction (X2 direction), the rear door 20 is moved in the second direction (X2 direction). The rear inner abutment portion 124 is pressed against the front outer abutment portion 133 in the second direction (X2 direction) via the inclined portion, and the rear outer abutment portion 123 is pressed against the front inner abutment portion 134 in the second direction (X2 direction) via the inclined portion. In the first and second closing modes, the rear door 20 and the front door 30 can also be held on the support portion 40 without wobbling.

[0088] <Third Implementation> Figure 21The main parts of the sliding door device 210 according to the third embodiment are schematically shown. The sliding door device 210 has a first outer stop 245 on the right side portion R, a second outer stop 247 on the left side portion L, and a first inner stop 246 and a second inner stop 248 on the central portion C. The first outer stop 245 and the first inner stop 246 are positioned opposite each other in the first guide portion, spaced apart in the sliding direction (X1-X2 direction), and the second outer stop 247 and the second inner stop 248 are positioned opposite each other in the second guide portion, spaced apart in the sliding direction. Furthermore, the rear outer abutment portion 223 provided on the rear door 20 and the front inner abutment portion 234 provided on the front door 30 move along the first guide portion, and the rear inner abutment portion 224 provided on the rear door 20 and the front outer abutment portion 233 provided on the front door 30 move along the second guide portion.

[0089] In the sliding door assembly 210, the first outer stop portion 245 and the second outer stop portion 247 have recesses RE, and the first inner stop portion 246 and the second inner stop portion 248 have protrusions PR. Additionally, each abutment portion 223, 224, 233, and 234 has a protrusion PR and a recess RE. Figure 20 In the example shown in (A), the convex part PR and the concave part RE are conical shapes with circular cross-sections. Figure 20 In the example shown in (B), the convex part PR and the concave part RE are conical shapes with rectangular cross sections.

[0090] Figure 22 (A) indicates the closing mode of the sliding door device 210 in the third embodiment. Figure 22 (B) indicates the first open mode. Figure 22 (C) indicates the second opening mode. The operation of the rear door 20 and front door 30, the contact between each stop and each moving part, and the contact between the moving parts are the same as in the sliding door device 10 of the first embodiment. In the sliding door device 210 of the third embodiment, each stop and each moving part is engaged by a conical protrusion PR and a concave recess RE, and each moving part is also engaged with each other by a conical protrusion PR and a concave recess RE. Therefore, in each mode, the rear door 20 and front door 30 can be positioned in multiple directions, including the front-back direction (Y1-Y2 direction) and the up-down direction (Z1-Z2 direction), without wobbling.

[0091] <Fourth Implementation> Figure 23 This refers to the sliding door device 310 of the fourth embodiment. This sliding door device 310 is related to... Figure 19The sliding door device 110 of the second embodiment shown also has only one guide portion. A first outer stop portion 345 is provided at the X1 side end of the guide portion, and a second outer stop portion 347 is provided at the X2 side end of the guide portion. The first outer stop portion 345 has a conical recess RE, and the second outer stop portion 347 has a conical protrusion PR. The rear door 20 has a rear outer abutment portion 323 and a rear inner abutment portion 324, and the front door 30 has a front outer abutment portion 333 and a front inner abutment portion 334. Each abutment portion 323, 324, 333, and 334 has a conical protrusion PR and a recess RE. Furthermore, each abutment portion 323, 324, 333, and 334 moves along a common guide portion.

[0092] Figure 24 (A) indicates the closing mode of the sliding door device 310 in the fourth embodiment. Figure 24 (B) indicates the first open mode. Figure 24 (C) indicates the second open mode. In each mode, the pressing action between the stop and the abutment, and the pressing action between the abutments themselves, are related to... Figure 19 The sliding door device 110 shown in the second embodiment is the same. In any mode, the stop and each moving part are engaged by conical protrusions PR and concave portions RE, and each moving part is also engaged with each other by conical protrusions PR and concave portions RE. Therefore, in each mode, the rear door 20 and the front door 30 can be positioned in multiple directions, including the front-back direction (Y1-Y2 direction) and the up-down direction (Z1-Z2 direction), without wobbling.

Claims

1. A sliding door device, comprising a sliding rear door, a sliding front door in front of the rear door, and a drive mechanism for sliding the rear door and the front door respectively, characterized in that, The system includes a closed mode, a first open mode, and a second open mode. In the closed mode, the rear door moves in a first direction and the front door moves in a second direction, opposite to the first direction, via the drive mechanism. In the first open mode, the front door overlaps with the rear door after it has moved in the first direction. In the second open mode, the rear door overlaps with the front door after it has moved in the second direction. The rear door has a rear outer abutment and a rear inner abutment spaced apart in the sliding direction, and the front door has a front outer abutment and a front inner abutment spaced apart in the sliding direction. The support portion is provided with a guide portion extending in the sliding direction, and the rear outer abutment portion and the front inner abutment portion move along the same guide portion.

2. The sliding door device as described in claim 1, Along the guide portion, the front inner abutment portion is located in a second direction position compared to the rear outer abutment portion. Along the guide portion, the front outer abutment portion is located in a second direction position compared to the rear inner abutment portion.

3. The sliding door device as described in claim 2, The support portion is provided with a first outer stop portion and a second outer stop portion spaced apart in the sliding direction. In the closed mode, the rear outer abutment portion is pressed against the first outer stop portion, and the front outer abutment portion is pressed against the second outer stop portion.

4. The sliding door device as described in claim 3, In the first open mode, the front outer abutment portion is pressed against the rear inner abutment portion; in the second open mode, the rear outer abutment portion is pressed against the front inner abutment portion.

5. The sliding door device as described in claim 4, In the first open mode, the rear outer abutment portion is pressed against the first outer stop portion, and the front inner abutment portion is pressed against the rear outer abutment portion. In the second open mode, the front outer abutment portion is pressed against the second outer stop portion, and the rear inner abutment portion is pressed against the front outer abutment portion.

6. The sliding door device as described in claim 1, The support portion is provided with a first guide portion and a second guide portion. The rear outer abutment portion and the front inner abutment portion move along the first guide portion, and the front outer abutment portion and the rear inner abutment portion move along the second guide portion.

7. The sliding door device as described in claim 3, The support portion is provided with a first guide portion and a second guide portion. The rear outer abutment portion and the front inner abutment portion move along the first guide portion, and the front outer abutment portion and the rear inner abutment portion move along the second guide portion. In the first guide portion, a first outer stop portion and a first inner stop portion are provided at a distance from each other in the sliding direction; in the second guide portion, a second outer stop portion and a second inner stop portion are provided at a distance from each other in the sliding direction. In the closed mode, the rear inner abutment portion is pressed against the second inner stop portion, and the front inner abutment portion is pressed against the first inner stop portion.

8. The sliding door device as described in claim 4, The support portion is provided with a first guide portion and a second guide portion. The rear outer abutment portion and the front inner abutment portion move along the first guide portion, and the front outer abutment portion and the rear inner abutment portion move along the second guide portion. In the first guide portion, a first outer stop portion and a first inner stop portion are provided at a distance from each other in the sliding direction; in the second guide portion, a second outer stop portion and a second inner stop portion are provided at a distance from each other in the sliding direction. In the first open mode, the rear inner abutment portion is pressed against the second inner stop portion, and the front outer abutment portion is pressed against the rear inner abutment portion. In the second open mode, the front inner abutment portion is pressed against the first inner stop portion, and the rear outer abutment portion is pressed against the front inner abutment portion.

9. The sliding door device as described in any one of claims 6 to 8, The first guide portion and the second guide portion are located on the same line extending along the sliding direction.

10. The sliding door device as described in claim 1, The rear outer abutment and the front inner abutment, as well as the front outer abutment and the rear inner abutment, move along an identical guide.

11. The sliding door device as described in claim 3, The first outer stop and the second outer stop are inclined stops.

12. The sliding door device as described in claim 7, The first inner stop and the second inner stop are inclined stops.

13. The sliding door device as described in claim 4, The front outer abutment portion is pressed against the rear inner abutment portion by the inclined portion, and the rear outer abutment portion is pressed against the front inner abutment portion by the inclined portion.

14. The sliding door device as described in claim 5, The front inner abutment portion is pressed against the rear outer abutment portion by the inclined portion, and the rear inner abutment portion is pressed against the front outer abutment portion by the inclined portion.

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