JP7437657B2 - door opening/closing device - Google Patents

Description

The present invention relates to a door opening/closing device for opening and closing a sliding door panel.

2. Description of the Related Art Door opening/closing devices that open and close sliding doors by transmitting the rotational drive of a motor have been known.
For example, Patent Document 1 below describes a rail base on which a sliding door is suspended, a motor that drives the sliding door, a driving pulley rotated by this motor, and a timing belt that is hung between the driving pulley and the driven pulley. A sliding door drive device is disclosed.

JP2020-33824A

However, in the sliding door drive device described in Patent Document 1, the lower part of the timing belt to which the connecting member connecting the sliding door and the timing belt is fixed, and the upper part parallel to this, in the door thickness direction. They are configured to be displaced to opposite sides at positions where they coincide. Therefore, since the timing belts are located above and below at the same position in the door thickness direction on the upper side of the rail base, it may be difficult to effectively utilize the space in which the timing belts are arranged.

The present invention has been made in view of the above-mentioned circumstances, and an object of the present invention is to provide a door opening/closing device that can effectively utilize the space in which the string-like transmission body is arranged.

In order to achieve the above object, a door opening/closing device according to the present invention has an upper rail that guides a guided member connected to the upper end of a sliding door panel and suspends and holds the sliding door panel slidably in the width direction of the door. A door opening/closing device comprising: a first rotary wheel and a second rotary wheel provided at positions spaced apart in the door width direction; and a string-shaped transmission body connected to the guided member, and a drive section that transmits a drive to the string-shaped transmission body, and the first rotating wheel and the second rotating wheel are connected to the string-shaped transmission body. a lower displacement part of the string-shaped transmission body that is connected to the guided member and is displaced in the door width direction; and an upper displacement part of the string-shaped transmission body that is displaced in the door width direction opposite to the lower displacement part. , are at different positions in the door thickness direction of the upper rail, and the axles are parallel to each other and are provided in an inclined manner.

By having the door opening/closing device according to the present invention configured as described above, it is possible to effectively utilize the space in which the string-like transmission body is arranged.

(a) and (b) are partially cutaway schematic front views, with some parts omitted, schematically showing an example of a door opening/closing device according to an embodiment of the present invention. It is a partially cutaway schematic side sectional view of the door opening/closing device. It is a partially cutaway schematic perspective view with a part of the door opening/closing device omitted. It is a partially cutaway schematic perspective view with a part of the door opening/closing device omitted. It is a partially cutaway schematic perspective view with a part of the door opening/closing device omitted. (a) to (c) are schematic perspective views with some parts omitted of the door opening/closing device. (a) and (b) are partially cutaway schematic perspective views with a part of the door opening/closing device omitted. (a) is a schematic exploded perspective view with a part of the door opening/closing device omitted, and (b) is a partially cutaway schematic front view with a part of the door opening/closing device omitted. (a) is a partially cutaway schematic exploded perspective view with a part of the door opening/closing device omitted, and (b) to (d) are partially cutaway schematic front views with a part of the door opening/closing device omitted. . (a) and (b) are partially cutaway schematic front views, with some parts omitted, schematically showing a modified example of the door opening/closing device. (a) to (c) are partially cutaway schematic front views, with some parts omitted, schematically showing other modifications of the door opening/closing device.

Embodiments of the present invention will be described below based on the drawings.
Note that in some of the figures, some detailed symbols attached to other figures are omitted.
Further, in the following embodiments, directions such as the vertical direction will be explained based on a state in which the door opening/closing device according to the present embodiment is installed.

1 to 11 are diagrams schematically showing an example and a modification of the door opening/closing device according to the present embodiment.
As shown in FIGS. 1(a) and 1(b), the door opening/closing device 1 according to the present embodiment guides a guided member 29 connected to the upper end 9a of the sliding door panel 9, and moves the sliding door panel 9 into the door. It is provided with an upper rail 10 which is slidably suspended in the width direction. The door opening/closing device 1 also includes a drive mechanism 20 that is connected to the guided member 29 and slides the guided member 29 in the door width direction. With such a configuration, when the drive mechanism 20 is driven, the guided member 29 is moved in the door width direction, and the sliding door panel 9 can be opened and closed (opened and closed). In other words, the sliding door panel 9 can function as an automatic door.

Further, the door opening/closing device 1 includes an upper frame 3 to which the upper rail 10 is fixed. This door opening/closing device 1 may constitute a sliding door device by a door frame 2 including an upper frame 3 and a sliding door panel 9. Further, the installation location of the door opening/closing device 1 may be a general residence such as a detached house or an apartment complex, a public facility such as an accommodation facility, a medical facility, a welfare facility, or a commercial facility such as an office. It can be installed in various locations such as , various stores, etc.
In this embodiment, an example is shown in which one sliding door panel 9 is installed in a single sliding shape. Although the illustrated example shows an example in which the sliding door panel 9 is installed in a side wall manner, it can be installed in any suitable manner such as in a door pocket or in an outset manner.

The door frame 2 is installed in an opening provided in a wall of a building. This door frame 2 includes an upper frame 3 (upper rail 10) that partitions the upper side of an entrance/exit 8 that is opened and closed by a sliding door panel 9, a door end side vertical frame 4 arranged on the door end side of the sliding door panel 9, and a sliding door panel 9. It includes a door end side vertical frame 5 arranged on the door end side of the panel 9 and a middle mullion (middle vertical frame) 6. The mullion 6 is disposed along the end of the side wall (not shown) on the side of the doorway 8, and partitions both sides of the doorway 8 in the opening width direction with the door end side vertical frame 4. The upper frame 3 may be attached to or embedded in the ceiling, or may be provided along the lower end of the hanging wall. Further, the lower side of the entrance/exit 8 may be partitioned by a floor or an appropriate lower frame.

The upper frame 3 is elongated in the door width direction, as shown in FIG. 1(a). The length of the upper frame 3 is approximately twice the width of the sliding door panel 9 (maximum door width to be described later) W1 (see FIG. 1(b)). Moreover, as shown in FIG. 2, the upper frame 3 is arranged so that the thickness direction is the vertical direction. In addition, in this upper frame 3, the estimated size of the armpit wall side portion (dimension along the door thickness direction) arranged on the wing wall side is smaller than the estimated dimension of the doorway 8 side section arranged on the doorway 8 side. (See also Figure 5).
Further, this upper frame 3 is provided with a receiving groove 3a for receiving an upper portion of a drive mechanism 20, which will be described later. With such a configuration, the upper rail 10 provided with the drive mechanism 20 can be easily aligned. The receiving groove 3a is provided so as to open downward and extend over the entire length of the upper frame 3. Note that the upper frame 3 may be fixed to a suitable upper frame base such as a lintel with fixing devices such as screws and nails.

The door end side vertical frame 4, the door end side vertical frame 5, and the mullion 6 are elongated in the door height direction (vertical direction), as shown in FIG. 1(a). The length dimensions of these door edge side vertical frame 4, door end side vertical frame 5, and middle mullion 6 are the door height dimension of the sliding door panel 9, and the dimension along the vertical direction of the upper rail 10 including the drive mechanism 20 and the upper frame 3. The dimensions are approximately the same as the sum of the dimensions. Further, the door end side vertical frame 4, the door end side vertical frame 5, and the mullion 6 are arranged so that the thickness direction is in the door width direction. The estimated dimensions of the door end side vertical frame 5 and the middle mullion 6 are smaller than the estimated dimensions of the door end side vertical frame 4 (see FIG. 2).
The door end side vertical frame 4 and the door end side vertical frame 5 may be fixed to an appropriate vertical frame base such as a pillar using a fixing tool. Further, the door end side vertical frame 4, the door end side vertical frame 5, and the upper frame 3 may be fixed to the vertical frame base and the upper frame base while assembled in a three-sided frame shape. . In the illustrated example, the facing surfaces of the upper ends of the door end side vertical frame 4 and the door end side vertical frame 5 are butted against the respective end surfaces on both sides in the longitudinal direction of the upper frame 3, and the door end side vertical frame 4 and the door end side vertical frame 5 are An example is shown in which the side vertical frames 5 and the upper frame 3 are assembled in a vertically shaped manner.

In addition, each end of the sliding door panel 9 on both sides in the door width direction (the end on the door end and the end on the door end) is received on the facing surfaces of the door end side vertical frame 4 and the door end side vertical frame 5. It may also be configured with a door jack groove.
The middle mullion 6 may have an upper end fixed to the upper frame 3 and a lower end fixed to the floor. Note that a gap shielding member such as mohair may be provided at the end of the mullion 6 on the side of the sliding door panel 9 so as to rub against one surface of the sliding door panel 9 in the thickness direction. Moreover, the door frame 2 is not limited to the structure described above, and may have various other structures.

The sliding door panel 9 has a substantially rectangular flat plate shape that is elongated in one direction (vertical direction). The door height dimension (length dimension) of this sliding door panel 9 may be a dimension corresponding to the opening height of the entrance/exit 8 that is opened and closed by the sliding door panel 9, and may be a standard door height dimension, for example, about 1800 mm to 2100 mm. . Further, the sliding door panel 9 may constitute a high door whose height dimension is approximately the same as the ceiling height, for example, approximately 2300 mm to 3000 mm. Further, the thickness of the sliding door panel 9 may be approximately 20 mm to 40 mm.
Further, the door width dimension of this sliding door panel 9 is a preset maximum door width W1. This maximum door width W1 may be, for example, about 1200 mm to 1800 mm so as to be compatible with various installation locations as described above. When this sliding door panel 9 is installed indoors, a surface material is attached to a panel core material that includes a frame-shaped core material formed from wood-based materials, metal-based materials, etc. that are used for general indoor sliding doors. It may also be a relatively lightweight panel such as a so-called flash panel having such a configuration. The sliding door panel 9 is not limited to such a flush panel, and may have an appropriate configuration depending on the installation location and the like.

A first guided member 29A constituting the guided member 29 is connected to the upper end 9a of the sliding door panel 9 on the door end side, which is one side in the door width direction, and the upper end 9a on the door end side, which is the other side in the door width direction. A second guided member 29B constituting the guided member 29 is connected to the upper end portion 9a. The first guided member 29A and the second guided member 29B have generally the same configuration. As shown in FIG. 2, the first guided member 29A and the second guided member 29B are provided with an attached portion 29a that is attached to the attachment portion of the sliding door panel 9. The mounting portions of the sliding door panel 9 are provided at upper end portions 9a on both sides of the sliding door panel 9 in the door width direction so as to open outward and upward in the door width direction, and have a recess shape into which the attached portions 29a are fitted. It is said to be the cup part of.

Furthermore, the first guided member 29A and the second guided member 29B are fixed to a support shaft 29b provided to protrude upward from the attached portion 29a, and to the upper end of this support shaft 29b. and a guide body 29c. The guide body 29c is provided with rolling elements 29d that run on a guide piece 13a of the upper rail 10, which will be described later. The illustrated example shows an example in which rolling elements 29d rotating around an axis along the door thickness direction are provided on both sides of the guide body 29c in the door thickness direction. Note that the rolling elements 29d on both sides in the door thickness direction may be provided at a plurality of locations at intervals in the door width direction of the guide body 29c.

Furthermore, a drive mechanism 20 is connected to the first guided member 29A on one side in the door width direction, as will be described in detail later. In other words, the first guided member 29A is slid in the door width direction by the drive mechanism 20, and the second guided member 29B on the other side, which is not connected to the drive mechanism 20, is passively slid in the door width direction. .
Note that the first guided member 29A and the second guided member 29B are not limited to those configured as described above, but may have an appropriate configuration depending on the upper rail 10 described later. Good too.
Furthermore, a guide groove or the like may be provided at the lower end of the sliding door panel 9 into which a lower end guide member such as a guide pin provided on the floor side is inserted.

As shown in FIG. 1(b), the upper rail 10 has a longest length L1 that is approximately twice the maximum door width W1 of the sliding door panel 9. In this embodiment, the upper rail 10 constitutes the longest upper rail 10 having the longest length L1, and the drive mechanism 20 is fixed to the first half 10A on one side in the longitudinal direction. There is. With such a configuration, when the sliding door panel 9 has the maximum door width W1 as in this embodiment, the first guided member 29A can be slid in the first half 10A of the longest upper rail 10. The sliding door panel 9 can be opened and closed by sliding the second guided member 29B on the second half 10B side of the longest upper rail 10. In addition, when the door width of the sliding door panel 9 is smaller than the maximum door width W1, the length of the upper rail 10 is adjusted so that the length of the upper rail 10 is approximately twice the door width, for example, the second half 10B side is A common drive mechanism 20 can be applied by adjusting it by cutting or shortening it in advance.

In other words, even if the dimension of the second half 10B side of the longest upper rail 10 is shortened, it will not affect the first half 10A side to which the drive mechanism 20 is fixed. There is no need to change the installation position, etc. As a result, the common drive mechanism 20 can be applied from the sliding door panel 9 with the maximum door width W1 to the sliding door panel 9A (see FIG. 10) with the door width (minimum door width) W2, which is approximately 1/2 of the maximum door width W1. , the versatility can be improved. In other words, the dimension of the drive mechanism 20 along the rail longitudinal direction (door width direction) is set to be approximately twice the minimum door width W2 or less so that the sliding door panel 9A with the minimum door width W2 can be opened and closed. .
In other words, the door opening/closing device 1A according to the modified example shown in FIGS. 10(a) and 10(b) has a sliding door panel 9A in which the door width W2 is approximately 1/2 of the sliding door panel 9 having the maximum door width W1 described above. It is configured to open and close. The length L2 of the upper rail 10C of this door opening/closing device 1A is approximately twice the door width W2 of the sliding door panel 9A, and approximately 1/2 of the length L1 of the longest upper rail 10 described above. . In other words, the length L2 of this upper rail 10C is approximately the same length as the length of the first half portion 10A of the longest upper rail 10 described above.

Note that the other configurations of the door opening/closing device 1A according to the modification are similar to those of the door opening/closing device 1 shown in FIG.
Further, in each example, the lengths L1, L2 of the upper rails 10, 10C are smaller than twice the door widths W1, W2. The lengths L1 and L2 of the upper rails 10 and 10C are based on the overlapping dimension of the door end side end of the sliding door panels 9 and 9A in the closed state and the mullion 6 (sleeve wall) and the length of the sliding door panels 9 and 9A in the fully open state. The dimensions may be determined appropriately depending on the remaining dimensions and the like. In other words, the lengths L1 and L2 of the upper rails 10 and 10C are approximately the dimensions obtained by subtracting the dimension obtained by doubling the above-mentioned overlap dimension from the dimension obtained by multiplying the door widths W1 and W2 of the sliding door panels 9 and 9A. They may have the same size.

Further, in this embodiment, the second half portion 10B on the other side in the longitudinal direction of the longest upper rail 10 is cuttable. With such a configuration, when the door width W2 of the sliding door panel 9A is smaller than the maximum door width W1, the second half 10B side is cut so that the length is approximately twice the door width W2. By doing so, the upper rail 10C can have a length L2 that can guide the sliding door panel 9A. This makes it possible, for example, to cut the second half 10B side while the drive mechanism 20 is attached to the first half 10A, which can be easily done even after shipment from the factory. The upper rail 10 may be made of metal such that at least the second half portion 10B has a uniform cross-sectional shape over the entire length and can be cut with an appropriate cutting tool.

Further, as shown in FIG. 2, the upper rail 10 is provided with a guide groove 11 that opens downward and receives a guided member 29 (a first guided member 29A and a second guided member 29B). . The guide groove 11 is provided so as to extend over the entire length of the upper rail 10. The guide body 29c of the guided member 29 is inserted into the guide groove 11 and guided.
The upper rail 10 includes a groove bottom plate-like part 12 that defines the bottom of the guide groove 11, side plate-like parts 13, 13 on both sides that define both sides of the guide groove 11 in the groove width direction, and these side plate-like parts 13, 13. The guide piece portions 13a, 13a extend from the lower end portions in directions facing each other. Further, the upper rail 10 includes protruding pieces 14 on both sides that are provided so as to protrude upward from both side edges in the groove width direction on the upper surface side of the groove bottom plate-shaped part 12.

At the leading ends in the extending direction of the guide pieces 13a, 13a on both sides, protrusions projecting upward are provided so as to extend over the entire length of the upper rail 10. The annular grooves provided on the outer peripheral surfaces of the rolling elements 29d, 29d of the guided member 29 engage with the protrusions of these guide pieces 13a, 13a, and roll along the protrusions of these guide pieces 13a, 13a. The moving objects 29d and 29d run. Note that the upper rail 10 is not limited to one having guide piece portions 13a, 13a on which rolling elements 29d, 29d run, which are spaced apart on both sides in the door thickness direction. The upper rail 10 may include, for example, one guide piece on which a rolling element 29d provided only on one side in the door thickness direction of the guided member 29 is held, and other guide pieces may be provided. , may have various configurations.

As shown in FIGS. 2 to 5, the drive mechanism 20 is fixed on the groove bottom plate-shaped portion 12 of the above-mentioned upper rail 10. With such a configuration, with the drive mechanism 20 integrated with the upper rail 10, the upper rail 10 can be fixed to a fixed object such as the upper frame 3 of the door frame 2 on which the sliding door panel 9 is installed. Can be done. Furthermore, compared to, for example, a structure in which the drive mechanism 20 is fixed to the side plate-like portion 13 of the upper rail 10, the dimensions along the door thickness direction can be made more compact.
As shown in FIGS. 3 and 4, this drive mechanism 20 includes a first driven rotary wheel 21 that constitutes a first rotary wheel and a second driven rotary wheel that constitutes a second rotary wheel, which are provided at positions spaced apart in the door width direction. A rotary wheel 25 is provided. The drive mechanism 20 also includes a string-like power transmission body 28 that is wound around each of the first driven rotary wheel 21 and the second driven rotary wheel 25 and connected to the first guided member 29A, and this string-like power transmission body. A drive section 30 that transmits drive to 28 is provided. With such a configuration, when the drive unit 30 is driven, the first guided member 29A connected to the string-like transmission body 28 is moved in the door width direction, and the sliding door panel 9 can be opened and closed.

The first driven rotary wheel 21 is provided so as to be located at the first end portion 10a on one side in the longitudinal direction of the first half portion 10A of the longest upper rail 10. The second driven rotary wheel 25 is provided so as to be located at the second end portion 10b on the other longitudinal side of the first half portion 10A of the longest upper rail 10. With such a configuration, the first guided member 29A can be slid over approximately the entire length of the first half portion 10A of the longest upper rail 10 by the string-like transmission body 28 wound around them. Furthermore, even when applied to different door widths W1 and W2, the installation position of the first driven rotary wheel 21 and the second driven rotary wheel 25 and the length of the string-like transmission body 28 can be applied without changing. Can be done.

The drive unit 30 is provided so as to be located between the first driven rotary wheel 21 and the second driven rotary wheel 25 and above the upper rail 10, and drives the string-like transmission body 28. It includes a driving rotary wheel 31 for transmitting data and a motor 35 for rotating the driving rotary wheel 31. With such a configuration, when the drive rotary wheel 31 is rotated by the motor 35, the first guided member 29A connected to the string-like transmission body 28 is moved in the door width direction, and the sliding door panel 9 is opened and closed. be able to. Further, compared to a case where the driving rotary wheel 31 and the motor 35 are provided at one end in the door width direction, the dimensions along the door width direction can be made more compact. Further, compared to a structure in which the drive rotary wheel 31 is provided on one side of the upper rail 10 in the door thickness direction, the dimensions along the door thickness direction can be made more compact. Due to these, it is also possible to install the door frame 2 on the same size as the door frame of a sliding door device installed in a general building such as a residence. Further, for example, it is possible to install it on an existing door frame 2, and it is applicable not only to new construction but also to renovation and renovation. As a result, sliding door panels can be installed inside ordinary houses such as existing detached houses and apartment complexes, public facilities such as accommodation facilities, medical facilities, and welfare facilities, commercial facilities such as offices, and various stores. 9 can be suitably used as a door opening/closing device 1 for opening and closing. Further, since the door opening/closing device 1 is compact, it is possible to make the sliding door panel 9 function as an automatic door, but it is also possible to reduce the appearance of discomfort (noise) even when installed as an indoor sliding door. , it can be suitably used for indoor use.

The first driven rotary wheel 21 and the second driven rotary wheel 25 have their respective axes, the first driven axle 22 and the second driven axle 26, being parallel to each other. Further, the first driven axle 22 and the second driven axle 26 are provided so as to intersect with the axial direction of the driving axle 32 of the driving rotary wheel 31, which is provided so that the axial direction thereof is in the door height direction. With such a configuration, the axial direction of the drive rotary wheel 31 is the door thickness direction, and the dimensions along the door thickness direction can be made more compact compared to a structure in which the motor 35 is provided adjacent to the door thickness direction. can be achieved. Further, the part of the string-like power transmission body 28 connected to the first guided member 29A and the part to which the drive is transmitted to the drive rotary wheel 31 can be arranged one above the other. Thereby, compared to a case where the axial direction of the first driven rotary wheel 21 and the second driven rotary wheel 25 is set in the door height direction, it is possible to more effectively reduce the size along the door thickness direction.

Further, as shown in FIG. 7, the motor 35 is disposed on one side of the drive rotary wheel 31 in the door width direction so that the axial direction of the output shaft 36 is in the door width direction, and the motor 35 is driven and rotated via gears 33 and 37. It is configured to rotate the wheel 31. With such a configuration, the dimensions along the door height direction can be made more compact than when the motor 35 is provided so that the axial direction of the output shaft 36 is in the door height direction. Note that the specific configuration of the drive unit 30 including the drive rotary wheel 31 and the motor 35 will be described later.

A string-like power transmission body 28 is wound around the first driven rotary wheel 21 and the second driven rotary wheel 25 in a parallel manner (see FIG. 4). In the string-like power transmission body 28, the lower displacement portion 28b is connected to the first guided member 29A and is displaced in the door width direction, and the upper displacement portion 28a is displaced in the opposite direction from the lower displacement portion 28b in the door width direction. (See Figure 2). The first driven rotary wheel 21 and the second driven rotary wheel 25 are arranged so that the lower displacement portion 28b and the upper displacement portion 28a of the string-like transmission body 28 are at different positions in the door thickness direction of the upper rail 10. A driven axle 22 and a second driven axle 26 are provided in an inclined manner. With such a configuration, the lower displacement portion 28b and the upper displacement portion 28a of the string-like transmission body 28 are disposed at positions shifted in the door thickness direction, and the lower displacement portion 28b and the upper displacement portion 28a Various devices and members can be placed using the space on one side in the thickness direction of the door.

In the first driven rotary wheel 21 and the second driven rotary wheel 25, the lower displacement portion 28b is located approximately at the center in the door thickness direction of the upper rail 10, and the upper displacement portion 28a is located on one side in the door thickness direction of the upper rail 10. The first driven axle 22 and the second driven axle 26 are provided in an inclined manner so as to be offset to the side. With such a configuration, the lower displacement portion 28b located approximately in the center of the upper rail 10 in the door thickness direction can be connected to the first guided member 29A. This stabilizes the first guided member 29A compared to a structure in which the lower displacement portion 28b is connected to the first guided member 29A or to one side in the door thickness direction of the upper end 9a of the sliding door panel 9 by a connecting member. It can be moved in the width direction of the door. Further, various devices and members can be placed using the space on the side of the upper displacement portion 28a in the door thickness direction, which is displaced at a position offset to one side in the door thickness direction of the upper rail 10.

Further, a drive rotary wheel 31 and a motor 35, which will be described later, are provided so as to be located on one side in the door thickness direction of the upper displacement portion 28a. With such a configuration, the drive rotary wheel 31 and motor 35 that constitute the drive section 30 can be arranged using the space on one side in the door thickness direction of the upper displacement section 28a.
Further, the lower displacement portion 28b is arranged within the guide groove 11, and the upper displacement portion 28a is arranged above the groove bottom plate-shaped portion 12. With such a configuration, the groove bottom plate-shaped portion 12 is interposed between the lower displacement portion 28b and the upper displacement portion 28a that are displaced in opposite directions in the door width direction, thereby suppressing mutual interference. be able to. Furthermore, if the upper displacement portion 28a is provided at a position offset to one side in the door thickness direction of the upper rail 10 as in the present embodiment, the space above the groove bottom plate portion 12 can be effectively utilized. can do.

The first driven rotary wheel 21 and the second driven rotary wheel 25 have the same size and shape. Further, the first driven rotary wheel 21 and the second driven rotary wheel 25 are formed into thin disk shapes whose dimensions along the axial direction of the first driven axle 22 and the second driven axle 26 are relatively small. There is. Further, the first driven rotary wheel 21 and the second driven rotary wheel 25 have annular grooves 21a and 25a (see FIG. 6) on their respective outer peripheral surfaces, in which a string-like transmission body 28, which is a rope-like member, engages. It is said to be a pulley provided. Further, the first driven rotary wheel 21 and the second driven rotary wheel 25 are provided so as to coincide with each other when viewed in the door width direction. In addition, the first driven rotary wheel 21 and the second driven rotary wheel 25 have lower end portions located approximately at the center in the groove width direction within the guide groove 11, and upper end portions located above the groove bottom plate portion 12. It is provided so as to be offset to one side in the groove width direction (see FIG. 2). The first driven axle 22 and the second driven axle 26 of the first driven rotary wheel 21 and the second driven rotary wheel 25 are provided so as to be perpendicular to the longitudinal direction of the upper rail 10, and are arranged in a horizontal plane (groove bottom plate shape). 12). The angle of inclination of the first driven axle 22 and the second driven axle 26 with respect to the horizontal plane (the upper surface of the groove bottom plate-shaped portion 12) may be approximately 10 degrees to 60 degrees, and the example shown in the figure is approximately 30 degrees. There is.

Further, at least one of the first driven rotary wheel 21 and the second driven rotary wheel 25 is held on the upper rail 10 so as to be adjustable in position in the door width direction. With such a configuration, the tension of the string-like power transmission body 28 can be adjusted. In this embodiment, the position of the first driven rotary wheel 21 can be adjusted in the door width direction.
As shown in FIGS. 6(a) and 6(b), the first driven rotary wheel 21 is a holding member that is held so as to be adjustable in position in the door width direction with respect to a fixed member 24 that is fixed to the groove bottom plate-shaped portion 12. 23, and is rotatably held around the first driven axle 22.
The fixing member 24 includes a fixing piece 24a that is fixed along the upper surface of the groove bottom plate-like part 12, and a fixing piece 24a that stands up from one side edge in the rail width direction (door thickness direction). A holding piece portion 24b is provided. The holding member 23 includes a held piece part 23a arranged along one surface of the holding piece part 24b in the door thickness direction.

The holding piece part 24b of the fixing member 24 has a screw inserted through which the shaft part of the fixing tool 7 is inserted, which is screwed into a female screw hole provided in the held piece part 23a of the holding member 23 so as to penetrate in the door thickness direction. A hole 24c is provided so as to penetrate in the door thickness direction. This screw insertion hole 24c is an elongated hole having a long diameter in the door width direction so that the position of the holding member 23 relative to the fixing member 24 in the door width direction can be adjusted. In addition, a plurality of female threaded holes (two in the illustrated example) are provided in the held piece portion 23a of the holding member 23 at intervals in the door width direction, and the shaft portion of the fastener 7 to be screwed into these female threaded holes is inserted. An example is shown in which a plurality of screw insertion holes 24c, 24c are provided in the holding piece 24b of the fixing member 24.

Further, the fixing member 24 has a screw insertion hole extending in the door width direction into which the shaft of the fixing tool 7 is inserted, which is screwed into the female screw hole provided in the holding member 23 so as to penetrate in the door width direction. It is set in. With such a configuration, by rotating the fixing tool 7 around the axis, the holding member 23 can be moved in the door width direction with respect to the fixing member 24. The illustrated example shows an example in which a shaft receiving piece 23c is provided at one end in the door width direction of the held piece 23a of the holding member 23, protruding in the door thickness direction and provided with a female threaded hole. Further, an example is shown in which a head receiving piece 24d is provided at one end in the door width direction of the holding piece 24b of the fixing member 24, protruding in the door thickness direction and provided with a screw insertion hole. In addition, in the illustrated example, a protruding piece that protrudes in the door thickness direction is provided on the upper edge of the holding piece 24b of the fixing member 24, and a protruding piece that protrudes in the door thickness direction is provided on the upper edge of the holding piece 24b of the holding member 23, and the holding piece 24b is provided on the upper edge of the held piece 23a of the holding member 23. An example is shown in which a protruding piece is provided along the lower surface of the protruding piece.

Further, the held piece part 23a of the holding member 23 is provided with an axle bearing piece part 23b extending downward from the lower end edge on one end side in the door width direction. The first driven axle 22 is provided on this axle bearing piece portion 23b. In the illustrated example, the axle bearing piece part 23b is provided in an inclined shape with respect to the held piece part 23a so that the thickness direction is in the axial direction of the first driven axle 22. The first driven rotary wheel 21 may be rotatable with respect to the first driven axle 22 fixedly provided with respect to the axle bearing piece 23b, and may be freely rotatable with respect to the axle bearing piece 23b. The first driven axle 22 may be fixedly provided to the first driven axle 22 held by the first driven axle 22 .
The first driven rotary wheel unit including the fixing member 24, the holding member 23, and the first driven rotary wheel 21 is such that the fixing member 24 is screwed onto the groove bottom plate-like portion 12 of the first end 10a of the first half portion 10A. It is fixed and attached to the upper rail 10 by a fixing device such as (see also FIGS. 3 and 4).

Further, when adjusting the position of the first driven rotary wheel 21 in the door width direction, the fixing members 7, 7 inserted into the screw insertion holes 24c, 24c of the holding piece portion 24b of the fixing member 24 are loosened, and the fixing members 24 are loosened. This may be done by screwing the fixing tool 7 inserted into the screw insertion hole of the head receiving piece 24d. At this time, since it can be carried out with the string-like power transmission body 28 wrapped around it, work efficiency can be improved. Moreover, once the position of the first driven rotary wheel 21 in the door width direction is adjusted, the fixing tools 7, 7 inserted into the screw insertion holes 24c, 24c of the holding piece part 24b of the fixing member 24 are tightened. good. Note that the manner in which the position of the first driven rotary wheel 21 can be adjusted in the door width direction is not limited to the manner described above, and may be in various other manners. Furthermore, the fixing member 24 for fixing the first driven rotary wheel 21 to the upper rail 10 is not limited to the configuration described above, and may have various other configurations.

As shown in FIG. 6(c), the second driven rotary wheel 25 is rotatably held around a second driven axle 26 with respect to a fixing member 27 fixed to the groove bottom plate-shaped portion 12.
The fixing member 27 includes a fixing piece part 27a fixed along the upper surface of the groove bottom plate-shaped part 12, and a holding piece part 27b provided to rise from one side edge in the door thickness direction of this fixing piece part 27a. , is equipped with. The holding piece 27b is provided with an axle bearing piece 27c extending downward from the lower end edge on one end in the door width direction. A second driven axle 26 is provided on this axle bearing piece portion 27c. The illustrated example shows an example in which the axle bearing piece 27c is provided at an angle with respect to the holding piece 27b so that the thickness direction is in the axial direction of the second driven axle 26, as described above. The second driven rotary wheel 25 may be rotatable with respect to a second driven axle 26 fixedly provided with respect to the axle bearing piece 27c, and may be rotatable with respect to the axle bearing piece 27c. The second driven axle 26 may be fixedly provided to the second driven axle 26 held by the second driven axle 26 . Furthermore, the illustrated example shows an example in which a protruding piece that protrudes in the door thickness direction is provided on the upper edge of the holding piece 27b.

In the second driven rotary wheel unit including the fixing member 27 and the second driven rotary wheel 25, the fixing member 27 is attached to the groove bottom plate portion 12 of the second end 10b of the first half portion 10A using a fixing device such as a screw. is fixed and attached to the upper rail 10 (see also FIGS. 3 and 4).
Note that the fixing member 27 for fixing the second driven rotary wheel 25 to the upper rail 10 is not limited to the configuration described above, and may have various other configurations.

The groove bottom plate-shaped portion 12 of the upper rail 10 is provided with cut-out recesses and through holes for receiving the lower portions of the first driven rotary wheel 21 and the second driven rotary wheel 25 (see FIG. 4). Moreover, as shown in FIG. 2, the guide bodies 29c, 29c of the first guided member 29A and the second guided member 29B are provided with a first driven rotary wheel 21 and a second driven rotary wheel 25 when viewed in the door width direction. A recess is provided that opens upward and on both sides in the door width direction so as to receive the lower end portion of the door. With such a configuration, it is possible to reduce the size in the vertical direction while suppressing interference with the first driven rotary wheel 21 and the second driven rotary wheel 25. Further, the guide main body 29c of the first guided member 29A is provided with a connecting portion 29e to which the lower displacement portion 28b of the string-like transmission body 28 is connected. This connecting portion 29e is provided so as to be located within the recess of the guide main body 29c.

As shown in FIG. 2, the string-like transmission body 28 has an upper displacement portion 28a that is displaced on the upper surface side of the groove bottom peripheral surface of the annular grooves 21a and 25a of the first driven rotary wheel 21 and the second driven rotary wheel 25. It is arranged on the upper side of the bottom plate-shaped portion 12 at a position offset to one side in the door thickness direction. In addition, the string-like transmission body 28 has a lower displacement portion 28b that is displaced on the lower surface side of the groove bottom peripheral surface of the annular grooves 21a and 25a of the first driven rotary wheel 21 and the second driven rotary wheel 25. It is arranged so as to be located at the center in the groove width direction. The string-like power transmission body 28 may have an annularly formed part to which the connecting portion 29e of the first guided member 29A is fixed, or both longitudinal end portions may be formed on both sides of the connecting portion 29e in the door width direction. It may be connected to form a substantially annular shape. Further, this string-like power transmission body 28 may be made of a structure that is difficult to stretch, and may be, for example, a metal wire, a twisted string made of appropriate fibers, a braided string made of a combination of fibers, etc. good.

As shown in FIG. 7, the string-like transmission body 28 formed into a rope-like member is wound around the drive rotary wheel 31 for more than one turn. With such a configuration, compared to a case where the string-like transmission body 28 is a belt, chain, etc., the drive rotary wheel 31 can be made more compact in the axial direction, and the generation of noise can be suppressed. However, it is possible to prevent the string-like transmission body 28 from slipping with respect to the drive rotary wheel 31.
The drive rotary wheel 31 is shaped like a thin disc whose dimension along the axial direction of the drive axle 32 is relatively small. Further, the driving rotary wheel 31 is a pulley having an annular groove 31a on its outer peripheral surface in which the string-like transmission body 28 engages. The driving rotary wheel 31 is installed so that one surface in the thickness direction faces the upper surface of the groove bottom plate-like portion 12. Further, the driving rotary wheel 31 is arranged so that one side in the door thickness direction of the groove bottom circumferential surface of the annular groove 31a is positioned in accordance with the position of the upper displacement portion 28a of the string-like transmission body 28 disposed on the one side in the door thickness direction. It is set up so that The upper displacement portion 28a of the string-like power transmission body 28 is wound around the drive rotary wheel 31 approximately once. The intersection of the upper displacement portion 28a wrapped around the drive rotary wheel 31 in this manner is located at a position that generally coincides with the upper surface portions of the first driven rotary wheel 21 and the second driven rotary wheel 25 when viewed in the door width direction. It is set in. Note that the outer circumferential surface (groove bottom circumferential surface of the annular grooves 21a, 25a, 31a) around which the string-like transmission body 28 of the driving rotary wheel 31, the first driven rotary wheel 21, and the second driven rotary wheel 25 is wound is two. It may be made of a soft material that has anti-slip properties by color molding or the like.

This drive rotary wheel 31 is provided with a gear (rotary wheel side gear) 33 that transmits rotation to a gear (motor side gear) 37 provided on a motor 35 that rotates this drive rotary wheel 31 . In this embodiment, the rotary wheel side gear 33 and the motor side gear 37 are arranged in a shape that meshes with each other in correspondence with the drive axle 32 of the drive rotary wheel 31 and the output shaft 36 of the motor 35, which are provided so as to intersect with each other. An example of a gear (in the example, a straight bevel gear) is shown. The rotary wheel side gear 33 is non-rotatably attached to one end (in the illustrated example, the upper end) of the drive axle 32 of the drive rotary wheel 31 . The motor side gear 37 is non-rotatably attached to the output shaft 36 of the motor 35. Note that the rotating wheel side gear 33 and the motor side gear 37 may have an appropriate configuration depending on the arrangement of the driving rotating wheel 31 and the motor 35. Furthermore, the rotary wheel side gear 33 and the motor side gear 37 are not limited to those configured to directly mesh with each other, but may be configured to transmit rotation through an appropriate intermediate gear or the like. good.

The drive mechanism 20 also includes a first fixing member 34 that fixes the drive rotating wheel 31 to the upper rail 10, and the first fixing member 34 is separate from the upper rail 10 to which the drive rotating wheel 31 is fixed. A second fixing member 38 is provided to detachably fix the motor 35 thereto. With such a configuration, when the motor 35 is detached, the rotation transmission state of the gears 33 and 37 (in this embodiment, meshing) is established with the driving rotary wheel 31 fixed to the upper rail 10. Release. Then, by removing the second fixing member 38 from the upper rail 10, the motor 35 can be detached from the upper rail 10. In addition, when fixing the motor 35, the drive rotary wheel 31 is fixed to the upper rail 10, and the gears 33 and 37 are placed in a rotation transmission state (in this embodiment, they are meshed) with the second fixing member. The motor 35 can be fixed to the upper rail 10 via 38. Thereby, when the motor 35 is attached to and detached from the upper rail 10, there is no need to remove or wrap the string-like transmission body 28, adjust the tension, etc., and it is possible to improve maintainability. In other words, only the motor 35 can be attached to and detached from the upper rail 10 while the driving rotary wheel 31 is capable of transmitting drive to the string-like transmission body 28 . The drive rotary wheel 31 and the motor 35 are fixed on the groove bottom plate-shaped portion 12 via the first fixing member 34 and the second fixing member 38.

Further, the second fixing member 38 is provided with fixing portions 38d and 38e that are fixed to the fixed portions 34d and 34e provided on the first fixing member 34. With this configuration, by fixing the fixing parts 38d and 38e of the second fixing member 38 to the fixed parts 34d and 34e of the first fixing member 34, the positioning of the motor 35 with respect to the drive rotary wheel 31 can be adjusted. can be done relatively reliably. Thereby, the rotating wheel side gear 33 of the drive rotating wheel 31 and the motor side gear 37 of the motor 35 can be brought into a rotation transmission state (in this embodiment, engaged) relatively reliably.
Further, one of the first fixing member 34 and the second fixing member 38 is provided with a positioning protrusion 34c that is fitted into a positioning recess 38c provided on the other. With such a configuration, positioning when fixing the second fixing member 38 to the first fixing member 34 can be easily performed.

The first fixing member 34 includes a fixing piece portion 34a that is fixed along the upper surface of the groove bottom plate-like portion 12 and rotatably holds one end (lower end in the illustrated example) of the drive axle 32 of the drive rotary wheel 31. , and an axle bearing piece portion 34b that rotatably holds the upper end side of the drive axle 32. The fixing piece portion 34a may be fixed to the groove bottom plate-like portion 12 with a suitable fixing device such as a screw. The axle bearing piece portion 34b is disposed above the fixed piece portion 34a so as to face the driving rotary wheel 31 across the installation space. The rotating wheel side gear 33 is provided so as to be exposed on the upper surface side of the axle bearing piece portion 34b.

The fixed parts 34d and 34e of the first fixing member 34 include a first fixed part 34d on one side in the door thickness direction and a second fixed part 34e on the other side in the door thickness direction. The first fixed portion 34d and the second fixed portion 34e have a substantially flat plate shape with the thickness direction being the door thickness direction, and are spaced apart from each other in the door thickness direction. In the illustrated example, the first fixed portion 34d is provided so as to hang down from one side edge in the door thickness direction of the axle bearing piece portion 34b. Further, the second fixed portion 34e is provided so as to rise from the other side edge in the door thickness direction of the axle bearing piece portion 34b.
Further, a positioning protrusion 34c is provided so as to protrude from one end in the door width direction of the axle bearing piece 34b of the first fixing member 34.

The second fixing member 38 includes a fixing piece portion 38a that is fixed along the upper surface of the groove bottom plate-like portion 12. In the illustrated example, the fixing piece 38a is provided at the lower end of a plate-like part fixed to the end of the motor 35 on the side different from the output shaft 36 in the axial direction. The fixing piece portion 38a may be fixed to the groove bottom plate-like portion 12 with a suitable fixing device such as a screw.
Further, the second fixing member 38 includes a plate-shaped holding piece 38b fixed to an end on the output shaft 36 side in the axial direction of the motor 35. This holding piece portion 38b is provided with a through hole through which the output shaft 36 is inserted. Further, this holding piece portion 38b is fixed to the motor 35 (motor case) with a suitable fixing device such as a screw. Further, the holding piece 38b is provided with a positioning recess 38c into which the positioning protrusion 34c is fitted.

The fixing parts 38d and 38e of the second fixing member 38 correspond to the fixed parts 34d and 34e of the first fixing member 34. 2 fixing part 38e. The first fixing part 38d and the second fixing part 38e have a substantially flat plate shape with the thickness direction being the door thickness direction, and are spaced apart from each other in the door thickness direction. In the illustrated example, the first fixing portion 38d is provided so as to protrude in the door width direction from one side edge in the door thickness direction of the holding piece portion 38b. Further, the second fixing portion 38e is provided so as to extend in the door width direction from the other side edge in the door thickness direction of the holding piece portion 38b. These first fixing portions 38d and second fixing portions 38e are fitted along one side in the door thickness direction of each of the first fixing portion 34d and second fixing portion 34e of the first fixing member 34. It is fixed with a fastener. Further, the first fixing part 38d and the second fixing part 38e have female screw holes provided in the first fixing part 34d and the second fixing part 34e of the first fixing member 34, respectively. An insertion hole is provided through which the shaft of the fixing tool is inserted.

Furthermore, a contact portion 38f is provided at the lower end of the second fixing portion 38e, the lower end surface of which abuts against the upper surface of the axle bearing piece portion 34b of the first fixing member 34 in surface contact. With such a configuration, the above-described positioning protrusion 34c and positioning recess 38c are fitted together, and the contact portion 38f is brought into contact with the upper surface of the axle bearing piece portion 34b, thereby achieving the second fixation to the first fixing member 34. The member 38 can be easily aligned.
The motor unit including the second fixed member 38 and the motor 35 configured as described above is mounted on the upper rail 10 with the rotary wheel unit including the first fixed member 34 and the drive rotary wheel 31 attached to the upper rail 10. It is said that it can be attached to and detached from 10. That is, if the fixed piece part 38a is removed from the groove bottom plate-like part 12, and the first fixed part 38d and the second fixed part 38e are removed from the first fixed part 34d and the second fixed part 34e of the first fixed member 34, The motor unit can be easily removed from the upper rail 10. Note that the first fixing member 34 that fixes the driving rotary wheel 31 to the upper rail 10 and the second fixing member 38 that fixes the motor 35 to the upper rail 10 are not limited to those having the above-mentioned configuration, but may also be used. , may have various configurations.

Furthermore, the motor 35 may be a servo motor or the like that can rotate in forward and reverse directions and whose rotation speed can be controlled.
Further, in the example described above, the drive axle 32 of the drive rotary wheel 31 is provided in the door height direction, but it may be provided in the door thickness direction. Even with such a configuration, the rotation of the motor 35 disposed on one side in the door width direction can be transmitted to the drive rotary wheel 31 via the gears 33 and 37, and the motor 35 is rotated so that the axial direction is in the door height direction. Compared to the case where a door height is provided, the dimensions along the door height direction can be made more compact. Furthermore, in this case, the first fixing member 34 and the second fixing member 38 may be modified as appropriate.

Further, in this embodiment, as shown in FIGS. 3 to 5, a control block 39 for controlling the rotation of the motor 35 is provided on one side of the motor 35 in the door width direction. The control block 39 is provided with a power supply section that supplies driving power to the motor 35, a control circuit connected to the motor 35 via appropriate signal lines, and the like. The motor 35 is controlled by the control block 39 to rotate forward or backward, and the sliding door panel 9 is moved to the fully open position or the closed position. In the illustrated example, the control block 39 is shaped like a substantially rectangular prism that is elongated in the door width direction. Further, an upper displacement portion 28a of the string-like transmission body 28 is disposed along the lower end portion of the control block 39 on one side in the door thickness direction (see FIG. 4). Note that a notch-shaped recess for receiving the upper displacement portion 28a may be provided at the lower end portion of the control block 39 on one side in the door thickness direction so as to extend over the entire length.

In addition, in this embodiment, as shown in FIGS. 3, 4, and 8, a variable resistor 44 that is rotated with the displacement of the string-like transmission body 28 is included, and the position detection device detects the position of the sliding door panel 9. 40. With such a configuration, the position (absolute position) of the sliding door panel 9 can be detected based on the resistance value (voltage) of the variable resistor 44.
In the present embodiment, as shown in FIG. A biasing member 48 that biases against the transmission body 28 is provided. With such a configuration, loosening of the string-like power transmission body 28 can be suppressed, and the position detection unit 40 can also function as a tension adding mechanism that increases the tension of the string-like power transmission body 28. can.

This position detection section 40 is provided on one side of the control block 39 in the door width direction. A control block 39 is provided so as to be located between the position detection section 40 and the drive section 30. Further, the driving section 30, the control block 39, and the position detecting section 40 are provided so as to be located between the first driven rotary wheel 21 and the second driven rotary wheel 25.
As shown in FIGS. 8(a) and 8(b), the position detection unit 40 includes a pair of holding members 46, 46 that hold the detection rotary wheel 41 between them from both sides in the door thickness direction along the axial direction. There is. The position detection unit 40 also includes a detection fixing member 49 that rotatably holds these holding members 46, 46 around an axis (held axis) 47 along the door thickness direction and is fixed to the upper rail 10. .

The detection rotary wheel 41 has a thin disc shape with a relatively small dimension along the axial direction, and has a pulley shape with an annular groove in the outer circumferential surface of which the string-like transmission body 28 engages. The detection rotary wheel 41 has its axle rotatably held by holding members 46 on both sides. In this embodiment, a first gear 42 and a second gear 43 are provided as gears that transmit the rotation of a gear portion 41a fixedly provided coaxially to the detection rotary wheel 41 to rotate the variable resistor 44. The structure is as follows.
The gear portion 41a of the detection rotary wheel 41 has a relatively small diameter, and is provided on one side of the detection rotary wheel 41 in the axial direction. The first gear 42 has a larger diameter than the gear portion 41a, and is provided so as to mesh with the gear portion 41a. The axle of this first gear 42 is held by one holding member 46. The second gear 43 has a larger diameter than the gear portion 41a and a smaller diameter than the first gear 42, and is provided so as to mesh with the first gear 42. One end of the axle of the second gear 43 is held by one holding member 46, and the other end of the axle of the second gear 43 is connected to the rotor 44a to rotate the rotor 44a of the variable resistor 44. has been done.

The gear portion 41a, the first gear 42, and the second gear 43 constitute a deceleration mechanism that decelerates the rotation of the detection rotary wheel 41 and transmits the deceleration to the variable resistor 44. The gear portion 41a, the first gear 42, and the second gear 43 are arranged so that when the sliding door panel 9 (the sliding door panel 9 with the maximum door width W1) is moved from the closed position to the fully open position, the rotor 44a of the variable resistor 44 is The rotation may be within a detectable range (within one rotation).
The variable resistor 44 may be a so-called rotary position sensor that outputs a voltage (resistance value) proportional to the rotation angle of the rotor 44a.
Further, the position detection unit 40 is provided with a detection board 45 to which the variable resistor 44 is fixed and which transmits the output voltage of the variable resistor 44 to the control block 39. This detection board 45 is fixed to the other holding member 46 with a suitable fixing device.

In the position detection unit 40 configured as described above, the detection rotary wheel 41 rotates with the displacement of the upper displacement portion 28a of the string-like transmission body 28 in the door width direction, and the rotation is caused by the rotation of the first gear 42 and the second gear 42. The rotor 44a of the variable resistor 44 is rotated by being transmitted by the gear 43. The motor 35 is controlled according to the position information and movement direction (closing side or opening side) information of the sliding door panel 9, which are calculated based on the voltage (resistance value) output according to the rotation angle of the rotor 44a. Panel 9 is opened and closed.
In addition, when a variable resistor 44 capable of detecting the position of the sliding door panel 9 with the maximum door width W1 is provided, and sliding door panels 9A with different door widths W2 are installed, the position of the sliding door panel 9A can be adjusted as appropriate depending on the movement range of the sliding door panel 9A. , the detection range of the rotation angle of the rotor 44a, etc. may be changed.

The pair of holding members 46, 46 have a substantially flat plate shape arranged such that the thickness direction thereof is the door thickness direction, and are elongated in the door width direction. One of the holding members 46 is provided with an insertion hole through which the shaft of the fixing tool 7 screwed into the female threaded hole of the boss-like projection provided on the other holding member 46 is inserted.
A detection rotary wheel 41 is rotatably held on one side in the longitudinal direction of these holding members 46, 46, and a boss-like protrusion provided at the lower end of the other longitudinal end is rotatably held on the detection fixing member 49. This constitutes a held shaft 47.

The detection fixing member 49 includes a fixing piece portion fixed along the upper surface of the groove bottom plate-like portion 12, and support pieces on both sides provided to rise from both side edges in the door thickness direction of the fixing piece portion. It has a shape that opens upward and on both sides in the door width direction. Holding members 46 holding the detection rotary wheel 41 and the like are inserted between the supporting pieces on both sides of the detection fixing member 49, and the shaft 47 to be held is held. The held shafts 47 of the holding members 46, 46 may be held via a fixing tool 7 whose shaft portion is inserted into a shaft insertion hole provided in one of the support pieces of the detection fixing member 49. Further, on the outer surface in the door thickness direction of the other holding member 46, there is provided a shaft portion coaxial with the held shaft 47 which is rotatably inserted into the insertion hole provided in the other support piece portion of the detection fixing member 49. It may be. Note that the manner in which the holding members 46, 46 holding the detection rotary wheels 41 and the like are held rotatably around the supported shaft 47 is not limited to this manner, and various other modifications are possible.

The biasing member 48 is a torsion coil spring (torsion spring) in which the held shaft 47 is inserted into a coil portion. One arm end 48a of the biasing member 48 is brought into contact with the upper end of the other end in the longitudinal direction of the holding member 46 that holds the detection rotary wheel 41, and the other arm end 48b of the biasing member 48 is It is in contact with the upper surface of the fixed piece portion of the detection fixing member 49. With this configuration, the biasing member 48 is configured to bias the detection rotary wheel 41 toward the upper displacement portion 28a of the string-like power transmission body 28 on the lower side. Note that the biasing member 48 is not limited to a torsion coil spring, and may be other spring members such as a plate spring, compression coil spring, or tension coil spring, and is not limited to a spring member, but may be a rubber material, etc. It may be.
Further, the position detection section 40 is not limited to one that functions as a tension applying mechanism that increases the tension of the string-like power transmission body 28. For example, a variable resistor 44 may be provided so as to be rotated in conjunction with any one of the first driven rotary wheel 21, the second driven rotary wheel 25, and the drive rotary wheel 31. You can. In addition, instead of the embodiment in which such a variable resistor 44 is provided, a mode in which appropriate position sensors are provided at a plurality of locations so that the position of the sliding door panel 9 can be detected, or in each of the closed position and the fully open position. It is also possible to adopt a mode in which a limit switch to be operated is provided.

As shown in FIGS. 5 and 9, on one of the upper rail 10 and the upper frame 3, hooks 17 that are held movably in the horizontal direction are provided at multiple locations at intervals in the door width direction. ing. Further, on the other of the upper rail 10 and the upper frame 3, a plurality of receiving recesses 16 that open in the horizontal direction and receive each of these hook portions 17 are provided at intervals in the door width direction. With such a configuration, the upper rail 10 can be fixed (temporarily fixed) to the upper frame 3 by inserting the hook portion 17 provided on one side into the receiving recess 16 provided on the other side. . Furthermore, since multiple locations in the longitudinal direction of the upper rail 10 can be fixed to multiple locations in the longitudinal direction of the upper frame 3, there is no possibility that the upper rail 10 may be fixed at an angle with respect to the upper frame 3. is less likely to occur, and workability can be improved. Further, the horizontally displaced hook portion 17 can be inserted and fixed into the horizontally opened receiving recess 16. Therefore, compared to, for example, an elastic claw piece provided on the upper frame 3 side, which is inserted with elastic deformation into a through hole provided vertically through the upper rail 10, It can be firmly fixed. Further, even if there is a slight positional deviation from each other in the horizontal direction, the positional deviation can be absorbed, that is, the hook portion 17 can be inserted into the receiving recess 16.

The hook portion 17 is held movably in the door width direction with respect to one side, and the receiving recess 16 is open in the door width direction. With such a configuration, the hook portion 17 that is displaced in the door width direction can be inserted and fixed into the receiving recess 16 that opens in the door width direction. As a result, compared to a configuration in which the hook portion 17 is displaced along the rail width (door thickness) direction of the upper rail 10, which has a relatively narrow width, the hook portion of the hook portion 17 can be effectively reduced. Can be made larger.
Further, the hook portion 17 is urged in the protruding direction by a biasing member 19 with respect to the holding portion 18 provided on one side. Further, the hook portion 17 is attached to both or one of the protruding tip end portion of the hook portion 17 and the recess section 15 that partitions the receiving recess 16 to which the tip portion comes into contact, by a guiding action caused by mutual contact. An inclined guide surface 17a for retreating is provided. With such a configuration, if the upper rail 10 is moved upward with respect to the upper frame 3 fixed to the frame base etc., the tip of the hook 17 and/or the recess section 15 will be moved. The provided inclined guide surface 17a causes the hook portion 17 to retreat against the biasing force of the biasing member 19. Further, when the upper rail 10 is further moved upward so that the hook portion 17 is positioned within the opening of the receiving recess 16, the hook portion 17 protrudes due to the biasing force of the urging member 19 and is inserted into the receiving recess 16. . Thereby, workability can be further improved compared to the case where the hook portion 17 needs to be slid with fingers or the like.

The receiving recess 16 is provided in the upper rail 10 as the other side, and has a structure in which an insertion hole 15d for the fastener 7 fixed to the upper frame 3 is provided in the recess partitioning part 15 that partitions the receiving recess 16. has been done. With such a configuration, the fixing tool 7 can be fixed to the upper frame 3 through the insertion hole 15d of the recess section 15 while the hook part 17 is inserted into the receiving recess 16 and temporarily fixed. Books can be fixed. In addition, the recess section 15 can function as an insertion point for the fastener 7, and the structure can be simplified compared to a structure in which an insertion hole for the fastener 7 is provided in another region.
In other words, the recess section 15 that partitions the receiving recess 16 functions as a fixture that is fixed to the upper frame 3 to which the upper rail 10 is fixed by the fixture 7. The recess partitioning portions 15 are larger in vertical dimension than the drive mechanism 20, and are attached to the groove bottom plate portion 12 of the upper rail 10 at a plurality of locations at intervals along the longitudinal direction. With such a configuration, the upper rail 10 can be fixed to the upper frame 3 by fixing the fixing tool 7 to the upper frame 3 via the plurality of recessed portions 15. Further, even when the dimensions of the upper rail 10 are adjusted according to the door widths W1 and W2, this can be accommodated by changing the mounting positions of these recessed sections 15. In addition, since the vertical dimension of these recessed sections 15 is larger than that of the drive mechanism 20, the upper rail 10 can be fixed to the upper frame 3 without causing the drive mechanism 20 to interfere with the upper frame 3. Can be done. In other words, the upper rail 10 can be fixed to the upper frame 3 without providing a recess or the like for receiving the drive mechanism 20 on the upper frame 3 side.

Further, the receiving recess 16 provided in the upper rail 10 is provided in a space where the constituent members of the drive mechanism 20 described above are not installed (see FIGS. 3 and 4). With such a configuration, the receiving recess 16 can be provided using the empty space other than the space where the components of the drive mechanism 20 are installed, and the dimensions of the upper rail 10 in the vertical direction can be made more compact. be able to. In the illustrated example, a recess partition portion 15 for partitioning a receiving recess 16 is provided between the first driven rotary wheel unit and the position detection section 40 and between the drive section 30 and the second driven rotary wheel unit, respectively. An example is shown below. Further, depending on the length of the upper rail 10, an appropriate number of recessed sections 15 may be provided at intervals in the door width direction. FIG. 1 shows an example in which two recessed sections 15, 15 are provided in each of the first half 10A and second half 10B of the longest upper rail 10 described above. That is, an example is shown in which four recessed sections 15, 15, 15, 15 are provided on the upper rail 10 at intervals in the longitudinal direction. FIG. 10 shows an example in which an upper rail 10C, which has approximately the same length as the first half 10A of the longest upper rail 10, is provided with two recessed sections 15, 15 spaced apart in the longitudinal direction. There is.

The recess section 15 includes a fixed piece part 15a that is fixed along the upper surface of the groove bottom plate-like part 12, and a recess section that stands up from the fixed piece part 15a and is provided with a receiving recess 16. A piece part 15b is provided. In this embodiment, recess sectioning pieces 15b, 15b are provided in pairs at intervals in the door width direction, and fixing pieces 15a, 15a are provided at the lower ends of each. Further, a receiving recess 16 is provided in each of the recess partitioning pieces 15b, 15b so as to penetrate in the door width direction. The illustrated example shows an example in which the receiving recess 16 has a substantially rectangular hole shape when viewed in the door width direction.
Further, the recess dividing portion 15 is provided so as to span between the upper end portions of the recess dividing piece portions 15b, 15b, and a fixed piece portion 15c is provided such that the insertion hole 15d passes through it in the vertical direction. It is equipped with The fixing pieces 15a, 15a on both sides of the recess section 15 may be fixed to the groove bottom plate-shaped part 12 with appropriate fasteners such as screws. Note that the recess section 15 is not limited to the approximately U-shaped one having the fixing pieces 15a, 15a, the recess partition pieces 15b, 15b, and the fixed piece 15c, and may be of various types. It may be a configuration.

As shown in FIG. 5, the hook part 17 is held by a holding part 18 fixed to one of the upper frames 3. In this embodiment, an example is shown in which the holding portion 18 is fixed to the bottom of a receiving groove 3a provided in the upper frame 3. The hook units including the hook portions 17 and the holding portions 18 are spaced apart in the longitudinal direction of the upper frame 3 so that the hook portions 17 can be inserted into the receiving recesses 16 provided in the recess section 15 described above. They are located in multiple locations. The illustrated example shows an example in which hook units adjacent to each other in the longitudinal direction of the upper frame 3 are provided such that the protruding directions of the respective hook portions 17, 17 with respect to the holding portions 18, 18 are on opposite sides in the door width direction. There is.
Further, as shown in FIG. 9, the hook portion 17 has a substantially rectangular parallelepiped shape that is elongated in the door width direction. In this embodiment, an example is shown in which an inclined guide surface 17a is provided at the tip end in the protruding direction, which is one end in the door width direction of the hook portion 17. This inclined guide surface 17a is formed so as to face diagonally downward in the door width direction, and is provided over almost the entire surface of the end surface of the hook portion 17 in the protruding direction.

Further, the hook portion 17 is provided with a retaining projection 17b that is inserted into a guide groove 18b provided in the holding portion 18. Although not shown, the retaining projections 17b are provided on both side surfaces of the hook portion 17 in the door thickness direction.
Further, a receiving recess 17c for receiving one end side of the biasing member 19 is provided at the base end, which is the other end in the door width direction, of the hook portion 17 so as to open outward in the door width direction.
The holding part 18 is formed to define a receiving recess that opens in the door width direction and receives the hook part 17. In the illustrated example, the holding part 18 has a bottom piece part that runs along the bottom side of the hook part 17, a side piece part that runs along both sides of the hook part 17 in the door thickness direction, and a base end part of the hook part 17. An example is shown in which opposing proximal end pieces are provided. The other end of the biasing member 19 is brought into contact with the proximal end piece of the holding portion 18 .

Further, an example is shown in which fixing piece parts 18a are provided on each of both side pieces and the base end piece of the holding part 18 so as to be fixed along the groove bottom of the receiving groove 3a of the upper frame 3. These fixing pieces 18a are provided with insertion holes through which shafts of fasteners such as screws that are fastened to the upper frame 3 are inserted.
Further, an example is shown in which guide grooves 18b, 18b are provided on both sides of the holding part 18 to receive the retaining protrusion 17b of the hook part 17 so as to be movable in the door width direction. These guide grooves 18b, 18b are provided so as to extend in the door width direction. Further, an example is shown in which upper surface piece portions 18c, 18c are provided on both side portions of the holding portion 18 to extend along the upper surface side of the hook portion 17.
The biasing member 19 is configured to bias the hook portion 17 so as to push it out against the holding portion 18 . This biasing member 19 may be, for example, a compression coil spring.

When temporarily fixing the upper rail 10 to which the recess section 15 is fixed to the upper frame 3 to which the hooking unit configured as described above is fixed, as shown in FIG. 9(b), The upper rail 10 is moved upward with respect to the upper frame 3. When the upper rail 10 is moved upward, as shown in FIG. 9(c), the corner of one of the recess partition pieces 15b and the fixed piece 15c of the recess partition part 15 is connected to the hook part 17. The hook portion 17 is displaced so as to be pushed into the holding portion 18 by the guiding action. Then, when the upper rail 10 is further moved upward, the hook part 17 is inserted into the receiving recess 16 of the recess partition part 15, and the upper rail 10 is moved to the upper frame 3. It is temporarily fixed (temporarily held) against the With the upper rail 10 temporarily fixed to the upper frame 3 in this way, the fixing tool 7 is fixed to the upper frame 3 through the insertion hole 15d of the recess section 15, and the upper rail 10 is fixed to the upper frame 3. It may be permanently fixed to. Although not shown, the groove bottom plate-shaped portion 12 of the upper rail 10 is provided with an insertion hole having a diameter larger than that of the head of the fixing tool 7.

Furthermore, the hook portion 17, the holding portion 18 that holds the hook portion 17, and the urging member 19 that urges the hook portion 17 in the projecting direction with respect to the holding portion 18 are not limited to those configured as described above, In addition, various configurations may be used. Further, in the above-described example, the inclined guide surface 17a is provided at the tip of the hook portion 17, but instead of or in addition to such an aspect, the hook portion 17 in the recess partition portion 15 may be provided with the inclined guide surface 17a. A configuration may also be adopted in which an inclined guide surface is provided at a portion where the tip portion comes into contact. Further, in the example described above, the hook portion 17 is provided on the upper frame 3 and the receiving recess 16 is provided on the upper rail 10, but these may be provided on the opposite side. That is, a configuration may be adopted in which the upper frame 3 is provided with the receiving recess 16 and the upper rail 10 is provided with the hook portion 17.

Further, as shown in FIG. 2, the door opening/closing device 1 includes covers 50, 50 arranged on both sides of the upper rail 10 in the door thickness direction so as to cover the space between the upper frame 3 and the upper rail 10. Good too. These covers 50, 50 may be fixed to the upper rail 10 with a suitable adhesive or fixing tool, or a locking portion that locks on a locked portion provided on the upper rail 10. It is also possible to have a configuration in which Further, when the door is housed in a wing wall as described above, the cover 50 on the wing wall side may be provided so as to cover from the door end side vertical frame 4 to the mullion 6.

Next, a modified example of the door opening/closing device will be described with reference to FIG. 11.
Note that differences from the above-described example will be mainly explained, and similar configurations will be given the same reference numerals and explanations thereof will be omitted or briefly explained. In addition, explanations of the effects that are similar to those of the above-mentioned examples will be omitted or briefly explained.

As shown in FIGS. 11(a) to 11(c), the door opening/closing device 1B according to this modification differs from the above-described example mainly in the configurations of the hook portion 17A and the receiving recess 16A.
In this modification, a fixing screw 19A is provided on one of the recess section 15A and the hook part 17A that partition the receiving recess 16A, and fixes the hook part 17A in the receiving recess 16A by screw operation. It is said that With such a configuration, the hook portion 17A can be fixed in the receiving recess 16A by operating the fixing screw 19A while the hook portion 17A is inserted into the receiving recess 16A.
In addition, in this modification, the recess section 15A is provided on the upper frame 3 side, and the hook unit including the hook portion 17A is provided on the upper rail 10D side. Although the illustrated example shows one set of the recess section 15A and the hook unit, similarly to the above, the recess section 15A and the hook unit are provided at multiple locations at intervals in the longitudinal direction of the upper rail 10D. It is provided.

The hook portion 17A is held movably in the door width direction with respect to a holding portion 18A provided on the upper rail 10D. The hook portion 17A may be provided to extend in the door width direction, and may have a substantially flat plate shape with the thickness direction being in the up-down direction.
Further, a female threaded hole into which a fixing screw 19A is screwed is provided at the tip end of the hook portion 17A on one end in the door width direction to be inserted into the receiving recess 16A so as to penetrate in the vertical direction. Further, a hand grip portion 17Ab for displacing the hook portion 17A in the door width direction is provided at the base end portion of the hook portion 17A on the other end side in the door width direction. In the illustrated example, the handle portion 17Ab is a piece provided so as to hang downward from the base end portion of the hook portion 17A.

The holding part 18A is fixed to the groove bottom plate-like part 12 (see FIG. 2, etc.) of the upper rail 10D, and is provided so as to protrude upward. It has a structure in which a holding hole is provided that penetrates in the width direction of the door to allow the door to be held freely.
The fixing screw 19A is disposed with the shaft portion (male thread portion) facing upward, and has a head that serves as an operating portion at the lower end. The head of the fixing screw 19A may be configured to be operable by hand, or may be operated by an appropriate tool.
The recess section 15A has a receiving recess 16A opened in the door width direction so as to receive the tip of the hook part 17A. In the illustrated example, the receiving recess 16A is opened on one side in the door width direction and on both sides in the door thickness direction.

The recess section 15A includes a fixed piece part 15Aa fixed to the bottom of the receiving groove 3a of the upper frame 3, and a hanging piece part 15Ab hanging from the edge of the other end in the door width direction of the fixed piece part 15Aa. It is equipped with. The recess section 15A also includes a holding piece 15Ac that extends from the lower end of the hanging piece 15Ab toward one side in the door width direction. A receiving recess 16A is defined by the fixed piece 15Aa, the hanging piece 15Ab, and the holding piece 15Ac. Further, the holding piece portion 15Ac is provided with a notch-shaped recess that receives the shaft portion of the fixing screw 19A and opens toward one side in the door width direction and penetrates in the vertical direction. In addition, the illustrated example shows an example in which a movement inhibiting part is provided at the tip of the holding piece 15Ac, which is bent downward and prevents the head of the fixing screw 19A from moving to one side in the door width direction. ing. Note that the fixing piece portion 15Aa of the recess section 15A may be fixed to the upper frame 3 with an appropriate fixing device.

In this modification, when fixing the upper rail 10D to the upper frame 3, as shown in FIG. Upper rail 10D is positioned at a position where portion 17A can be inserted. At this time, the fixing screw 19A may be loosened so that the holding piece 15Ac can be received between the head of the fixing screw 19A and the tip of the hook 17A. Then, as shown in FIG. 11(b), the hook portion 17A is displaced in the door width direction, and its tip is inserted into the receiving recess 16A. Next, as shown in FIG. 11(c), the fixing screw 19A is tightened, and the retaining piece 15Ac is held between the head of the fixing screw 19A and the tip of the hook 17A, and the holding piece 15Ac is held upward against the upper frame 3. The rail 10D may be fixed. In addition, after fixing in this manner, the upper rail 10D may be further fixed to the upper frame 3 at a proper position using a suitable fixing device or a fixing device such as a screw.

Further, in this modification as well, a configuration may be adopted in which a biasing member or an inclined guide surface as described above for biasing the hook portion 17A in the projecting direction is provided.
Further, in each of the above examples, the hook portions 17, 17A are freely displaceable in the door width direction, and the receiving recesses 16, 16A are opened in the door width direction, but the present invention is not limited to such an embodiment. do not have. For example, the hook portions 17, 17A can be freely displaced in the door thickness direction or horizontally diagonally with respect to the door thickness direction, and the receiving recesses 16, 16A are opened in a direction in which the hook portions 17, 17A can be received. You can also use it as
Further, the door opening/closing devices 1, 1A, 1B according to each of the above-described examples may have a configuration in which a hooking unit including such hooking portions 17, 17A and receiving recesses 16, 16A are not provided. In this case, the upper rails 10, 10C, and 10D may be fixed to the upper frame 3 at appropriate positions using appropriate fixing devices or fixing devices such as screws.
Further, in the example described above, the first fixing member 34 that fixes the drive rotary wheel 31 and the second fixing member 38 that fixes the motor 35 are separate bodies, but the present invention is not limited to such an embodiment. do not have.
Further, in the example described above, the drive mechanism 20 is provided so as to fit within the length of the first half portion 10A of the longest upper rail 10, but the drive mechanism 20 is not limited to such an embodiment.

Moreover, although the above-mentioned example shows an example in which the driving rotary wheel 31 and the motor 35 are provided between the first driven rotary wheel 21 and the second driven rotary wheel 25, the present invention is not limited to such an embodiment. One of the first driven rotary wheel 21 and the second driven rotary wheel 25 is used as a driving rotary wheel constituting the first rotary wheel around which the string-like transmission body 28 is wound in a parallel manner, and the other is used as the driving rotary wheel constituting the first rotary wheel around which the string-like transmission body 28 is wound in a parallel manner. It may also be a driven rotary wheel that constitutes a car. In this case, a suitable motor may be provided to enable rotation to be transmitted to the drive rotary wheel.
Further, in the above example, the upper rails 10, 10C, and 10D are provided with guide grooves 11 that open downward, but guide grooves that open toward one side in the door thickness direction or toward the upper side are also provided. 11 may be provided. In this case, the guided member 29 and the drive mechanism 20 may be modified as appropriate.
Further, in the above example, the drive rotary wheel 31, the first driven rotary wheel 21, and the second driven rotary wheel 25 are pulleys, but they may also be gears (sprockets) or the like. Further, the string-like transmission body 28 is not limited to a rope-like member that matches the driving rotary wheel 31, the first driven rotary wheel 21, and the second driven rotary wheel 25, but may be a belt, a ball chain, a chain, etc. You can. The configurations of the above-mentioned devices, members, and parts of the door opening/closing devices 1, 1A, and 1B according to the present embodiment are merely examples, and various modifications are possible.

1, 1A, 1B Door opening/closing device 10, 10C, 10D Upper rail 11 Guide groove 12 Groove bottom plate-shaped portion 21 First driven rotating wheel (first rotating wheel)
22 First driven axle (axle)
25 Second driven rotating wheel (second rotating wheel)
26 Second driven axle (axle)
28 String-like power transmission body 28a Upper displacement part 28b Lower displacement part 29 Guided member 29A First guided member (guided member)
29B Second guided member (guided member)
30 Drive unit 31 Drive rotating wheel 35 Motor 9 Sliding door panel 9a Upper end part

Claims (4)

A door opening/closing device comprising an upper rail that guides a guided member connected to an upper end of a sliding door panel and suspends and holds the sliding door panel slidably in the width direction of the door, the door opening/closing device comprising:
A first rotary wheel and a second rotary wheel are provided at positions separated in the door width direction, and the first rotary wheel and the second rotary wheel are wound around each of the first rotary wheel and the second rotary wheel in a parallel manner and connected to the guided member. It includes a string-like transmission body and a drive section that transmits drive to the string-like transmission body,
The first rotating wheel and the second rotating wheel include a lower displacement portion of the string-like transmission body that is connected to the guided member and is displaced in the door width direction, and a lower displacement portion of the string-like transmission body. The axle shafts are parallel to each other and are provided in an inclined manner so that the upper displacement portion and the upper displacement portion that are displaced in the opposite direction in the door width direction are at different positions in the door thickness direction of the upper rail. door opening/closing device. In claim 1,
The first rotary wheel and the second rotary wheel are such that the lower displacement portion is located approximately at the center in the door thickness direction of the upper rail, and the upper displacement portion is located on one side in the door thickness direction of the upper rail. A door opening/closing device characterized in that axles are provided in an inclined manner so as to be in offset positions. In claim 1 or 2,
A guide groove for receiving the guided member is provided in the upper rail so as to open downward;
The lower displacement portion is disposed within the guide groove, and the upper displacement portion is disposed above a groove bottom plate-shaped portion that partitions a groove bottom of the guide groove. . In any one of claims 1 to 3,
The first rotary wheel and the second rotary wheel are driven rotary wheels rotated by the string-like transmission body, and the drive section is configured to control the upper displacement between the first rotary wheel and the second rotary wheel. 1. A door opening/closing device comprising a drive rotary wheel and a motor located on one side of the door in the thickness direction of the door.

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