CN116096977A - Door opening and closing device - Google Patents

Abstract

A door opening/closing device (1) is provided with an upper rail (10), wherein the upper rail (10) guides a guided member (29) connected to an upper end (9 a) of a sliding door panel (9), and the sliding door panel is suspended and held in a freely sliding manner in the door width direction; the door opening/closing device (1) is provided with: a 1 st driven rotary wheel (21) and a 2 nd driven rotary wheel (25), each of which is wound with a rope-like transmission body (28) connected to the guided member, and which are provided at positions apart from each other in the width direction of the door; a driving rotary wheel (31) which is disposed between the 1 st driven rotary wheel and the 2 nd driven rotary wheel and above the upper rail, and which transmits driving force to the rope-shaped transmission body; and a motor (35) for rotating the driving rotation wheel.

Description

Door opening and closing device

Technical Field

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

Background

Conventionally, door opening and closing devices for opening and closing a sliding door by transmitting a rotational drive of a motor are known.

For example, patent document 1 discloses a door opening/closing device including: a driving side pulley which is positioned at one end side of the door leaf in the opening and closing direction, winds the rope component and transmits the rotation force of the motor to the rope component; and a driven pulley, which is positioned at the other end side of the door leaf in the opening and closing direction, and winds the rope component.

Prior art literature

Patent literature

Patent document 1: japanese patent laid-open No. 2019-108678

Disclosure of Invention

Problems to be solved by the invention

However, the door opening/closing device described in patent document 1 is configured such that a motor for rotating the driving side pulley is provided on the outer side in the door width direction of the driving side pulley. Therefore, a space for disposing the motor is required on the outer side of the driving side pulley in the door width direction, and therefore, there is a possibility that the frame width dimension of the door frame needs to be increased, or an embedding work into a wall or the like is required.

The present disclosure has been made in view of the above-described circumstances, and an object thereof is to provide a door opening/closing device capable of realizing a compact size in a door width direction.

Means for solving the problems

In order to achieve the above object, a door opening and closing device according to claim 1 of the present disclosure is a door opening and closing device including an upper rail for guiding a guided member connected to an upper end portion of a sliding door panel so that the sliding door panel is suspended and held slidably in a door width direction, the door opening and closing device including: a 1 st driven rotary wheel and a 2 nd driven rotary wheel, each of which is wound around a rope-like transmission body connected to the guided member, and is provided at a position apart from each other in the width direction of the door; a driving rotary wheel disposed between the 1 st driven rotary wheel and the 2 nd driven rotary wheel and above the upper rail, for transmitting driving force to the rope-shaped transmission body; and a motor for rotating the driving rotary wheel.

The present disclosure may also provide a door opening/closing device capable of effectively utilizing a space in which a string-like transmission body is disposed, instead of the above object. In this case, in place of the mechanism, the door opening/closing device according to claim 2 may be a door opening/closing device including an upper rail that guides a guided member coupled to an upper end portion of a sliding door panel so that the sliding door panel is suspended and held so as to be slidable in a door width direction, the door opening/closing device including: the 1 st rotary wheel and the 2 nd rotary wheel are arranged at positions separated from each other in the width direction of the door; a string-shaped transmission body wound around each of the 1 st and 2 nd rotation wheels in a parallel rack shape and connected to the guided member; and a driving unit configured to transmit a driving force to the rope-shaped transmission body, wherein the 1 st rotation wheel and the 2 nd rotation wheel are disposed in a tilted manner such that a lower displacement portion of the rope-shaped transmission body and an upper displacement portion of the rope-shaped transmission body are located at different positions in a door thickness direction of the upper rail, the lower displacement portion is coupled to the guided member to displace in a door width direction, and the upper displacement portion and the lower displacement portion displace in an opposite side in the door width direction. In this case, the 1 st rotation wheel and the 2 nd rotation wheel may be provided with wheel shafts inclined to each other such that the lower displacement portion is located at a substantially central portion in the door thickness direction of the upper rail, and the upper displacement portion may be located at a position biased to one side in the door thickness direction of the upper rail.

The present disclosure may also provide a door opening/closing device capable of improving maintenance of a motor, instead of the above object. In this case, in place of the mechanism, the door opening/closing device according to claim 3 may be a door opening/closing device including an upper rail that guides a guided member coupled to an upper end portion of a sliding door panel so that the sliding door panel is suspended and held so as to be slidable in a door width direction, the door opening/closing device including: a driving rotary wheel for transmitting driving force to a rope-shaped transmission body connected to the guided member; a driven rotary wheel wound around the rope-like transmission body and driven to rotate; a motor provided with a gear for transmitting rotation to a gear provided on the driving rotation wheel, for rotating the driving rotation wheel; a 1 st fixing member for fixing the driving rotation wheel to the upper rail; and a 2 nd fixing member, separate from the 1 st fixing member, for detachably fixing the motor to the upper rail to which the driving rotation wheel is fixed. In this case, the 2 nd fixing member may further include a fixing portion that is fixed to a portion to be fixed provided to the 1 st fixing member.

Effects of the invention

The door opening/closing device according to the present disclosure 1 can be made compact in size along the width direction of the door by adopting the above-described configuration.

Drawings

Fig. 1 (a) and (b) are partial cross-sectional schematic front views, with a part omitted, schematically showing an example of a door opening/closing device according to an embodiment of the present disclosure.

Fig. 2 is a schematic side sectional view of the door opening and closing device in a partial sectional view.

Fig. 3 is a partially cut-away schematic perspective view of the door opening/closing device with a part thereof omitted.

Fig. 4 is a partially cut-away schematic perspective view of the door opening and closing device with a part omitted.

Fig. 5 is a partially cut-away schematic perspective view of the door opening and closing device with a part omitted.

Fig. 6 (a) to (c) are schematic perspective views of the door opening/closing device, with a part thereof omitted.

Fig. 7 (a) and (b) are schematic perspective views, partially cut away, of the door opening/closing device.

Fig. 8 (a) is a schematic exploded perspective view of the door opening/closing device with a part omitted, and (b) is a partial cross-sectional schematic front view of the door opening/closing device with a part omitted.

Fig. 9 (a) is a partially cut-away schematic exploded perspective view of the door opening/closing device with a part omitted, and (b) to (d) are partially cut-away schematic front views of the door opening/closing device with a part omitted.

Fig. 10 (a) and (b) are partial cross-sectional schematic front views, with a part thereof omitted, schematically showing a modification of the door opening/closing device.

Fig. 11 (a) to (c) are partial cross-sectional schematic front views, with a part thereof omitted, schematically showing another modification of the door opening/closing device.

Fig. 12 is a partially cutaway, schematic exploded perspective view schematically showing still another modification of the door opening/closing device, with a part thereof omitted.

Fig. 13 (a) and (b) are partially cutaway schematic exploded plan views of this modification.

Fig. 14 (a) and (b) are schematic perspective views in partial cross-section of this modification.

Detailed Description

Embodiments of the present disclosure will be described below based on the drawings.

In some of the drawings, a part of detailed reference numerals given to other drawings is omitted.

In the following embodiments, the vertical direction and other directions will be described with reference to a state where the door opening/closing device according to the present embodiment is mounted.

Fig. 1 to 14 are diagrams schematically showing an example and a modification of the door opening/closing device according to the present embodiment.

As shown in fig. 1 (a) and (b), the door opening/closing device 1 according to the present embodiment includes an upper rail 10, and the upper rail 10 guides a guided member 29 connected to an upper end portion 9a of a sliding door panel 9, so that the sliding door panel 9 is suspended and held slidably in a door width direction. The door opening/closing device 1 further includes a driving mechanism 20, and the driving mechanism 20 is coupled to the guided member 29 so that the guided member 29 slides in the door width direction. With such a configuration, the guided member 29 can be moved in the door width direction by driving the driving mechanism 20, and the sliding door panel 9 can be opened and closed (opened and closed). That is, the sliding door panel 9 can be made to function as an automatic door.

The door opening/closing device 1 further includes an upper frame 3 to which the upper rail 10 is fixed. The door opening/closing device 1 may be a sliding door device including a door frame 2 including an upper frame 3 and a sliding door panel 9. The installation place of the door opening/closing device 1 may be a general house such as a single house or a group house, a public facility such as a living facility, a medical facility, or a welfare facility, or a business facility such as a business, or various shops, etc., and may be installed in various places.

In the present embodiment, an example is shown in which one sliding door panel 9 is constructed in a single sliding door shape. In the illustration, the example in which the sliding door panel 9 is constructed in the sleeve wall storage shape is shown, but the sliding door panel may be constructed in an appropriate storage form such as a door box storage or an exterior storage.

The door frame 2 is provided at an opening provided in a wall body of a building. The door frame 2 includes: an upper frame 3 (upper rail 10) partitioning the upper side of the doorway 8 opened and closed by a sliding door panel 9; a door head side vertical frame 4 arranged on the door head side of the sliding door panel 9; a door rear side vertical frame 5 disposed on the door rear side of the sliding door panel 9, and a mullion (middle vertical frame) 6. The muntin 6 is disposed along the inlet/outlet 8 side end portion of the sleeve wall, not shown, and partitions the inlet/outlet 8 on both sides in the opening width direction from the head side vertical frame 4. The upper frame 3 may be provided in an attached or embedded form on the ceiling, or may be provided along the lower end portion of the vertical wall. The underside of the doorway 8 may be defined by a floor or a suitable lower frame.

As shown in fig. 1 (a), the upper frame 3 is elongated in the door width direction. The length of the upper frame 3 is approximately 2 times the door width (maximum door width) W1 (see fig. 1 b) of the sliding door panel 9. As shown in fig. 2, the upper frame 3 is disposed so that the thickness direction is the up-down direction. The depth dimension (dimension along the gate thickness direction) of the upper frame 3 at the sleeve wall side portion arranged on the sleeve wall side is set smaller than the depth dimension of the inlet/outlet 8 side portion arranged on the inlet/outlet 8 side (see also fig. 5).

The upper frame 3 is provided with a receiving groove 3a for receiving an upper portion of a driving mechanism 20 described later. With such a configuration, the upper rail 10 provided with the driving mechanism 20 can be easily aligned. The receiving groove 3a is opened downward and is provided so as to extend over the entire length of the upper frame 3. The upper frame 3 may be fixed to an appropriate upper frame base such as a lintel by fastening means such as screw fasteners or nails.

As shown in fig. 1 (a), the door head side vertical frame 4, the door tail side vertical frame 5, and the mullion 6 are elongated in the door height direction (up-down direction). The longitudinal dimensions of the door head side longitudinal frame 4, the door tail side longitudinal frame 5, and the mullion 6 are made to be substantially the same as the door height dimension of the sliding door panel 9 plus the dimension of the upper rail 10 and the upper frame 3 in the up-down direction including the driving mechanism 20. The door head side vertical frame 4, the door tail side vertical frame 5, and the mullion 6 are arranged such that the thickness direction is the door width direction. The depth dimension of the door tail side vertical frame 5 and the mullion 6 is set smaller than the depth dimension of the door head side vertical frame 4 (see fig. 2).

The door head side vertical frame 4 and the door tail side vertical frame 5 may be fixed to an appropriate vertical frame base such as a column by a fixing member. The door head side vertical frame 4 and the door tail side vertical frame 5 and the upper frame 3 may be fixed to the vertical frame base and the upper frame base in a state assembled in a three-square frame shape. In the figure, the upper end portions of the door-head-side vertical frame 4 and the door-tail-side vertical frame 5 are abutted (abutted) against each other on the respective end surfaces of the two sides of the upper frame 3 in the longitudinal direction, and the door-head-side vertical frame 4, the door-tail-side vertical frame 5, and the upper frame 3 are assembled in a vertical frame extending shape.

Further, door fitting grooves for receiving the respective ends (the door-head-side end and the door-tail-side end) of the sliding door panel 9 on both sides in the door width direction may be provided on the depth surfaces of the door-head-side vertical frame 4 and the door-tail-side vertical frame 5 facing each other.

The mullion 6 may be fixed to the floor at the upper end portion and the lower end portion of the upper frame 3. The end of the mullion 6 on the side of the sliding door panel 9 may be provided with a gap shielding member such as mohair that is in frictional contact with one surface in the thickness direction of the sliding door panel 9. The door frame 2 is not limited to the above-described structure, and may be of various other structures.

The sliding door panel 9 is formed in a substantially rectangular flat plate shape elongated in one direction (up-down direction). The door height dimension (length dimension) of the sliding door panel 9 may be a dimension corresponding to the height of the opening of the doorway 8 opened and closed by the sliding door panel 9, or may be a standard door height dimension, for example, about 1800mm to 2100 mm. The sliding door panel 9 may be a high door having a height substantially equal to the ceiling height, for example, about 2300mm to 3000 mm. The door thickness of the sliding door panel 9 may be about 20mm to 40 mm.

The sliding door panel 9 has a door width dimension of a preset maximum door width W1. The maximum door width W1 may be, for example, about 1200mm to 1800mm so as to be able to cope with various installation places as described above. When installed indoors, the sliding door panel 9 may be a relatively lightweight panel such as a so-called bright panel in which a surface material is adhered to a panel core including a frame-like core made of a wooden material, a metal material, or the like that is commonly used as an indoor sliding door. The sliding door panel 9 is not limited to such a bright panel, and may be appropriately structured according to the installation place or the like.

The 1 st guided member 29A constituting the guided member 29 is connected to the upper end 9A on the door head side which is one side in the door width direction of the sliding door panel 9, and the 2 nd guided member 29B constituting the guided member 29 is connected to the upper end 9A on the door tail side which is the other side in the door width direction. The 1 st guided member 29A and the 2 nd guided member 29B have substantially the same structure as each other. As shown in fig. 2, the 1 st guided member 29A and the 2 nd guided member 29B are provided with a mounted portion 29A to be mounted on the mounting portion of the sliding door panel 9. The mounting portions of the sliding door panel 9 are provided so as to open to the outer side and the upper side in the door width direction on the upper ends 9a on both sides in the door width direction of the sliding door panel 9, and are formed as recessed cup portions into which the mounting portions 29a are fitted.

The 1 st guided member 29A and the 2 nd guided member 29B include: the support shaft 29b is provided so as to protrude upward from the attached portion 29 a; and a guide body 29c fixed to an upper end portion of the support shaft 29b. The guide body 29c is provided with a rotor 29d that moves on a guide piece portion 13a of the upper rail 10, which will be described later. In the illustration, an example is shown in which the rolling bodies 29d that rotate around the axis along the door thickness direction are provided on both sides of the guide body 29c in the door thickness direction, respectively. The rolling bodies 29d on both sides in the door thickness direction may be provided at a plurality of positions with a gap therebetween in the door width direction of the guide body 29 c.

The 1 st guided member 29A, which is one of both sides in the door width direction, is connected to the driving mechanism 20, which will be described in detail later. That is, the 1 st guided member 29A slides in the door width direction by the driving mechanism 20, and the 2 nd guided member 29B, which is not connected to the driving mechanism 20, slides in the door width direction so to speak.

The 1 st guided member 29A and the 2 nd guided member 29B are not limited to the above-described configuration, and may be appropriately configured according to the upper rail 10 described later.

A guide groove or the like into which a lower end guide member such as a guide pin provided on the floor side is inserted may be provided at the lower end portion of the sliding door panel 9.

As shown in fig. 1 (b), the upper rail 10 has a length L1 that is approximately 2 times as long as the maximum door width W1 of the sliding door panel 9. In the present embodiment, the upper rail 10 is configured as the longest upper rail 10 having the longest length L1, and the drive mechanism 20 is fixed to the 1 st half 10A on one side in the longer direction. If the structure is such that the sliding door panel 9 has the maximum door width W1 as in the present embodiment, the 1 st guided member 29A is slid on the 1 st half 10A of the longest upper rail 10, and the 2 nd guided member 29B is slid on the 2 nd half 10B of the longest upper rail 10, whereby the sliding door panel 9 can be opened and closed. When the door width of the sliding door panel 9 is smaller than the maximum door width W1, for example, the common driving mechanism 20 can be applied by cutting the 2 nd half 10B side or previously shortening the same to adjust the length of the upper rail 10 to a length approximately 2 times the door width.

That is, even if the dimension of the 2 nd half 10B side of the longest upper rail 10 is made shorter, the 1 st half 10A side to which the driving mechanism 20 is fixed is not affected, and the installation position of the driving mechanism 20 and the like do not need to be changed. Thus, the common driving mechanism 20 can be applied to the sliding door panel 9A (see fig. 10) having a door width (minimum door width) W2 of approximately 1/2 from the sliding door panel 9 having the maximum door width W1, and the versatility can be improved. In other words, the dimension of the driving mechanism 20 along the track longer direction (door width direction) can be set to be approximately 2 times or less the minimum door width W2, so that the sliding door panel 9A of the minimum door width W2 can be opened and closed.

That is, the door opening/closing device 1A according to the modified example shown in fig. 10 (a) and (b) is configured to open and close the sliding door panel 9A, and the door width W2 of the sliding door panel 9A is approximately 1/2 of the maximum door width W1 of the sliding door panel 9. The length L2 of the upper rail 10C of the door opening/closing device 1A is approximately 2 times the door width W2 of the sliding door panel 9A, and approximately 1/2 of the length L1 of the longest upper rail 10. In other words, the length L2 of the upper rail 10C is substantially the same as the length of the 1 st half 10A of the longest upper rail 10.

Other structures of the door opening/closing device 1A according to the modified example are the same as those of the door opening/closing device 1 shown in fig. 1 and the like, and therefore the same reference numerals are given thereto, and description thereof is omitted.

In each example, the lengths L1 and L2 of the upper rails 10 and 10C are set to be smaller than 2 times the door widths W1 and W2. The lengths L1 and L2 of the upper rails 10 and 10C may be appropriately set according to the overlapping dimension of the door tail side end portions of the sliding door panels 9 and 9A in the closed state and the mullion 6 (sleeve wall), the pulling-out surplus dimension of the sliding door panels 9 and 9A in the fully opened state, and the like. In other words, the lengths L1 and L2 of the upper rails 10 and 10C may be substantially the same as the size obtained by subtracting the size 2 times the overlapping size from the size 2 times the door widths W1 and W2 of the sliding door panels 9 and 9A.

In the present embodiment, the 2 nd half 10B of the longest upper rail 10 on the other side in the longer direction is cut. If the structure is made as described above, when the door width W2 of the sliding door panel 9A is smaller than the maximum door width W1, the upper rail 10C having a length L2 that enables guiding of the sliding door panel 9A can be made by cutting the 2 nd half 10B side to a length that is approximately 2 times the door width W2. Thus, for example, the drive mechanism 20 can be cut off from the 2 nd half 10B side even in a state where it is attached to the 1 st half 10A, and can be easily handled even after factory shipment. The upper rail 10 may be made of metal having the same cross-sectional shape over at least the entire length of the 2 nd half 10B and capable of being cut by an appropriate cutting tool.

As shown in fig. 2, the guide groove 11 for receiving the guided member 29 (the 1 st guided member 29A and the 2 nd guided member 29B) is provided so as to open downward in the upper rail 10. The guide groove 11 is provided to extend across 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 portion 12 dividing the groove bottom of the guide groove 11; side plate parts 13, 13 on both sides, dividing both sides of the guide groove 11 in the groove width direction; and guide piece portions 13a, 13a extending from lower end portions of the side plate portions 13, 13 in directions facing each other. The upper rail 10 further includes two side projecting pieces 14, 14 provided so as to project upward from both side edge portions in the groove width direction on the upper surface side of the groove bottom plate portion 12.

The protruding strip protruding upward is provided at the front end portions of the guide piece portions 13a and 13a on both sides in the extending direction so as to extend over the entire length of the upper rail 10. Annular grooves provided on the outer peripheral surfaces of the rotating bodies 29d, 29d of the guided member 29 engage with the protrusions of the guide piece portions 13a, and the rotating bodies 29d, 29d move along the protrusions of the guide piece portions 13a, 13 a. The upper rail 10 is not limited to the structure having the guide piece portions 13a and 13a for moving the respective rolling bodies 29d and 29d provided at both sides in the door thickness direction with a gap therebetween. The upper rail 10 may have a structure in which only the rotor 29d provided on one side of the guided member 29 in the door thickness direction is held by one guide piece, for example, or may have other various structures.

As shown in fig. 2 to 5, the driving mechanism 20 is fixed to the groove bottom plate-like portion 12 of the upper rail 10. With such a configuration, the upper rail 10 can be fixed to a fixation target such as the upper frame 3 of the door frame 2 to which the sliding door panel 9 is attached, with the drive mechanism 20 and the upper rail 10 being integrated. Further, compared with a structure in which the drive mechanism 20 is fixed to the side plate-like portion 13 of the upper rail 10, for example, the dimension along the door thickness direction can be made compact.

As shown in fig. 3 and 4, the driving mechanism 20 includes a 1 st driven rotation wheel 21 and a 2 nd driven rotation wheel 25 provided at positions apart from each other in the width direction of the door, the 1 st driven rotation wheel 21 constituting the 1 st rotation wheel, and the 2 nd driven rotation wheel 25 constituting the 2 nd rotation wheel. The driving mechanism 20 further includes: a string-like transmission body 28 wound around each of the 1 st driven rotary wheel 21 and the 2 nd driven rotary wheel 25 and connected to the 1 st guided member 29A; and the driving unit 30 transmits a driving force to the string-like power transmission body 28. With such a configuration, when the driving unit 30 is driven, the 1 st 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 1 st driven rotation wheel 21 is provided at the 1 st end 10A on the longer direction side of the 1 st half 10A of the longest upper rail 10. The 2 nd driven rotation wheel 25 is provided at the 2 nd end 10b on the other side in the longer direction of the 1 st half 10A of the longest upper rail 10. With such a configuration, the 1 st guided member 29A can slide over substantially the entire length of the 1 st half 10A of the longest upper rail 10 by the string-like transmission body 28 wound around them. Even when the present invention is applied to different door widths W1 and W2, the present invention can be applied without changing the installation positions of the 1 st driven rotary wheel 21 and the 2 nd driven rotary wheel 25 and the length of the rope-like transmission body 28.

The driving unit 30 includes a driving rotary wheel 31 and a motor 35 for rotating the driving rotary wheel 31, and the driving rotary wheel 31 is provided between the 1 st driven rotary wheel 21 and the 2 nd driven rotary wheel 25 and above the upper rail 10, and transmits a driving force to the string-like transmission body 28. With such a configuration, when the driving rotation wheel 31 is rotated by the motor 35, the 1 st 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. Further, compared with a structure in which the drive rotation wheel 31 and the motor 35 are provided at one end portion in the door width direction, the dimension along the door width direction can be made compact. Further, compared with a structure in which the driving rotation wheel 31 is provided on the door thickness direction side of the upper rail 10, the dimension along the door thickness direction can be made compact. By this, the door frame 2 can be provided to the same extent as the door frame of a sliding door device provided in a general building such as a house. For example, the door frame 2 may be installed, and the present invention is applicable not only to new construction but also to rebuilding or refitting. Accordingly, the door opening and closing device 1 can be suitably used as a door opening and closing device for opening and closing a sliding door panel 9 provided in a common house such as an established individual house or a group house, a public facility such as a living facility, a medical facility, a welfare facility, a business facility such as a business hall, or a house such as a store. Further, since the door opening/closing device 1 is compact, the sliding door panel 9 can function as an automatic door, and even if it is installed as an indoor sliding door, it is possible to reduce the unpleasant feeling (noise) in appearance, and it can be used as an indoor space appropriately.

The 1 st driven wheel shaft 22 and the 2 nd driven wheel shaft 26, which are the shafts of the 1 st driven wheel 21 and the 2 nd driven wheel 25, are parallel to each other. The 1 st driven wheel shaft 22 and the 2 nd driven wheel shaft 26 are disposed so as to intersect the axial direction of the drive wheel shaft 32 of the drive rotation wheel 31, and the drive wheel shaft 32 of the drive rotation wheel 31 is disposed so that the axial direction is the door height direction. With such a configuration, the dimension along the door thickness direction can be made compact as compared with a configuration in which the axial direction of the driving rotary wheel 31 is the door thickness direction and the motors 35 are provided adjacent to each other in the door thickness direction. Further, the portion of the string-like transmission body 28 connected to the 1 st guided member 29A and the portion transmitting the driving force to the driving rotation wheel 31 can be arranged vertically. As a result, the dimension along the door thickness direction can be more effectively made compact than a configuration in which the axial directions of the 1 st and 2 nd driven rotating wheels 21 and 25 are the door height direction.

As shown in fig. 7, the motor 35 is disposed on the side of the drive rotation wheel 31 in the door width direction so that the axial direction of the output shaft 36 is the door width direction, and rotates the drive rotation wheel 31 via the gears 33 and 37. With such a configuration, the dimension along the door height direction can be made compact as compared with a configuration in which the motor 35 is provided so that the axial direction of the output shaft 36 is the door height direction. The specific configuration of the driving unit 30 including the driving rotary wheel 31 and the motor 35 will be described later.

The 1 st driven rotary wheel 21 and the 2 nd driven rotary wheel 25 are wound with a string-like transmission body 28 in a parallel hanger shape (see fig. 4). The string-like transmission body 28 has a lower displacement portion 28b connected to the 1 st guided member 29A and displaced in the door width direction, and an upper displacement portion 28a is displaced in the door width direction opposite to the lower displacement portion 28b (see fig. 2). The 1 st and 2 nd driven rotary wheels 21 and 25 are provided with the 1 st and 2 nd driven wheel shafts 22 and 26 inclined so that the lower and upper displacement portions 28b and 28a of the rope-like transmission body 28 are positioned at different positions in the door thickness direction of the upper rail 10. With such a configuration, the lower displacement portion 28b and the upper displacement portion 28a of the string-like transmission body 28 are arranged at positions offset in the door thickness direction, and various devices and components can be arranged by using a space laterally in the door thickness direction of one of the lower displacement portion 28b and the upper displacement portion 28 a.

The 1 st and 2 nd driven rotary wheels 21 and 25 are provided with the 1 st and 2 nd driven wheel shafts 22 and 26 inclined so that the lower displacement portion 28b is located at a substantially central portion in the door thickness direction of the upper rail 10, and the upper displacement portion 28a is located at a position biased to one side in the door thickness direction of the upper rail 10. With such a configuration, the lower displacement portion 28b located at the substantially central portion in the door thickness direction of the upper rail 10 can be connected to the 1 st guided member 29A. In this way, the 1 st guided member 29A can be moved stably in the door width direction, compared with a structure in which the lower side displacement portion 28b is connected to the 1 st guided member 29A or the upper end portion 9A of the sliding door panel 9 by a connecting member. Further, various devices or components can be arranged by using a space on the door thickness direction side of the upper displacement portion 28a displaced at a position biased to one side in the door thickness direction of the upper rail 10.

The driving rotary wheel 31 and the 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 28 a. With such a configuration, the driving rotation wheel 31 and the motor 35 constituting the driving unit 30 can be disposed in a space on the door thickness direction side of the upper displacement unit 28 a.

The lower displacement portion 28b is disposed in the guide groove 11, and the upper displacement portion 28a is disposed above the groove bottom plate portion 12. With such a configuration, the groove bottom plate-like portion 12 is sandwiched between the lower displacement portion 28b and the upper displacement portion 28a which are displaced to opposite sides in the door width direction, and mutual interference can be suppressed. Further, if the upper side displacement portion 28a is provided at a position biased to one side in the door thickness direction of the upper rail 10 as in the present embodiment, the upper side space of the groove bottom plate portion 12 can be effectively utilized.

The 1 st driven rotary wheel 21 and the 2 nd driven rotary wheel 25 are the same size and shape. The 1 st and 2 nd driven rotary wheels 21 and 25 are formed in a thin disk shape having a relatively small dimension in the axial direction of the 1 st and 2 nd driven wheel shafts 22 and 26. Further, the 1 st driven rotary wheel 21 and the 2 nd driven rotary wheel 25 are pulleys provided with annular grooves 21a and 25a (see fig. 6) on the outer peripheral surfaces thereof, into which a rope-shaped transmission body 28 formed as a rope-shaped member engages. The 1 st driven rotary wheel 21 and the 2 nd driven rotary wheel 25 are provided so as to be positioned in agreement with each other when viewed in the door width direction. The 1 st and 2 nd driven rotary wheels 21 and 25 are provided so that the lower end side portions thereof are located at substantially the center in the groove width direction in the guide groove 11, and the upper end side portions thereof are located at positions biased to one side in the groove width direction above the groove bottom plate portion 12 (see fig. 2). The 1 st driven wheel shaft 22 and the 2 nd driven wheel shaft 26 of the 1 st driven wheel 21 and the 2 nd driven wheel 25 are disposed so as to be orthogonal to the longer direction of the upper rail 10 and are disposed so as to be inclined with respect to the horizontal plane (the upper surface of the groove bottom plate portion 12). The inclination angle of the 1 st driven wheel shaft 22 and the 2 nd driven wheel shaft 26 with respect to the horizontal plane (upper surface of the groove bottom plate portion 12) may be about 10 degrees to 60 degrees, and an example of about 30 degrees is shown in the figure.

Further, at least one of the 1 st driven rotary wheel 21 and the 2 nd 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 transmission body 28 can be adjusted. In the present embodiment, the 1 st driven rotating wheel 21 can be adjusted in position in the door width direction.

As shown in fig. 6 (a) and (b), the 1 st driven rotary wheel 21 is rotatably held about the 1 st driven wheel shaft 22 with respect to a holding member 23, and the holding member 23 is held so as to be positionally adjustable in the door width direction with respect to a fixing member 24 fixed to the groove bottom plate portion 12.

The fixing member 24 includes: a fixing piece portion 24a fixed along the upper surface of the groove bottom plate portion 12; and a holding piece 24b provided to stand up from one side edge of the fixing piece 24a in the track width direction (door thickness direction). The holding member 23 includes a held piece portion 23a, and the held piece portion 23a is arranged along a surface of the holding piece portion 24b on one side in the door thickness direction.

A screw insertion hole 24c through which the shaft portion of the fastening tool 7 is inserted is provided in the holding piece portion 24b of the fixing member 24 so as to penetrate in the door thickness direction, and the fastening tool 7 is screwed into a female screw hole provided in the held piece portion 23a of the holding member 23 so as to penetrate in the door thickness direction. The screw insertion hole 24c is formed as a long hole having a long diameter in the door width direction so that the position of the holding member 23 with respect to the fixing member 24 in the door width direction can be adjusted. Further, the holding piece portion 23a of the holding member 23 is provided with a plurality of (two in the drawing) female screw holes at intervals in the door width direction, and the holding piece portion 24b of the fixing member 24 is provided with a plurality of screw insertion holes 24c, 24c through which the shaft portions of the fastening tools 7 screwed with the female screw holes are inserted.

The fixing member 24 is provided with a screw insertion hole through which the shaft portion of the fastening tool 7 is inserted so as to pass through in the door width direction, and the fastening tool 7 is screwed into a female screw hole provided in the holding member 23 so as to pass through in the door width direction. With such a configuration, the holding member 23 can be moved in the door width direction with respect to the fixing member 24 by pivoting the fastening tool 7. In the drawings, an example is shown in which one end portion in the door width direction of the held piece portion 23a of the holding member 23 is provided with a shaft bearing piece portion 23c protruding in the door thickness direction and provided with a female screw hole. Further, an example is shown in which a head receiving piece portion 24d protruding in the door thickness direction and provided with a screw insertion hole is provided at one end portion in the door width direction of the holding piece portion 24b of the fixing member 24. In the drawings, an example is shown in which a protruding piece portion protruding in the door thickness direction is provided at the upper end edge of the holding piece portion 24b of the fixing member 24, and a protruding piece portion along the lower surface of the protruding piece portion of the holding piece portion 24b is provided at the upper end edge of the held piece portion 23a of the holding member 23.

Further, the held piece portion 23a of the holding member 23 is provided with a wheel bearing tab portion 23b so as to extend downward from a lower end edge portion on one end side in the door width direction. The 1 st driven wheel shaft 22 is provided in the wheel bearing lug portion 23b. The following examples are shown in the legend: the wheel bearing tab portion 23b is provided in an inclined manner with respect to the held tab portion 23a so that the thickness direction becomes the axial direction of the 1 st driven wheel shaft 22. The 1 st driven rotation wheel 21 may be rotatably provided with respect to the 1 st driven wheel shaft 22 fixedly provided to the wheel bearing lug portion 23b, or the 1 st driven rotation wheel 21 may be fixedly provided with respect to the 1 st driven wheel shaft 22 rotatably held to the wheel bearing lug portion 23b.

The 1 st driven rotary wheel unit including the fixing member 24, the holding member 23, and the 1 st driven rotary wheel 21 is attached to the upper rail 10 by fixing the fixing member 24 to the groove bottom plate portion 12 of the 1 st end portion 10A of the 1 st half portion 10A with a fastening tool such as a screw (see also fig. 3 and 4).

In addition, when the 1 st driven rotation wheel 21 is adjusted in position in the door width direction, the fastening tools 7, 7 inserted into the screw insertion holes 24c, 24c of the holding piece portion 24b of the fixing member 24 may be loosened, and the fastening tool 7 inserted into the screw insertion hole of the head receiving piece portion 24d of the fixing member 24 may be screwed. In this case, since the rope-like transmission member 28 can be wound, workability can be improved. Further, if the position adjustment in the door width direction of the 1 st driven rotation wheel 21 is performed, the fastening tools 7, 7 inserted into the screw insertion holes 24c, 24c of the holding piece 24b of the fixing member 24 may be fastened. The form in which the 1 st driven rotation wheel 21 can be adjusted in the door width direction is not limited to the above-described form, and may be other various forms. The fixing member 24 for fixing the 1 st driven rotation wheel 21 to the upper rail 10 is not limited to the above-described configuration, and may be of various other configurations.

As shown in fig. 6 (c), the 2 nd driven rotary wheel 25 is rotatably held about the 2 nd driven wheel shaft 26 with respect to the fixing member 27 fixed to the groove bottom plate-like portion 12.

The fixing member 27 includes: a fixing piece 27a fixed along the upper surface of the groove bottom plate 12; and a holding piece 27b provided to stand up from one side edge of the fixing piece 27a in the door thickness direction. The holding piece portion 27b is provided with a wheel bearing lug portion 27c, and the wheel bearing lug portion 27c extends downward from a lower end edge portion on one end side in the door width direction. The 2 nd driven axle 26 is provided on the wheel bearing tab portion 27 c. In the illustration, the following examples are shown as described above: the wheel bearing tab portion 27c is provided in an inclined manner with respect to the holding tab portion 27b so that the thickness direction becomes the axial direction of the 2 nd driven wheel shaft 26. The 2 nd driven rotary wheel 25 may be rotatably supported by the 2 nd driven wheel shaft 26, the 2 nd driven wheel shaft 26 may be fixedly provided to the wheel bearing lug portion 27c, or the 2 nd driven rotary wheel 25 may be fixedly provided to the 2 nd driven wheel shaft 26, and the 2 nd driven wheel shaft 26 may be rotatably supported to the wheel bearing lug portion 27 c. In the drawings, an example is shown in which a protruding piece portion protruding in the door thickness direction is provided at the upper end edge of the holding piece portion 27 b.

The 2 nd driven rotary wheel unit including these fixing members 27 and the 2 nd driven rotary wheel 25 is attached to the upper rail 10 by fixing the fixing members 27 to the groove bottom plate-like portion 12 of the 2 nd end portion 10b of the 1 st half portion 10A with a fastening tool such as a screw (see also fig. 3 and 4).

The fixing member 27 for fixing the 2 nd driven rotary wheel 25 to the upper rail 10 is not limited to the above-described configuration, and may be of various other configurations.

The groove bottom plate-like portion 12 of the upper rail 10 is provided with notch-like recesses or through holes (see fig. 4) for receiving the lower portions of the 1 st driven rotary wheel 21 and the 2 nd driven rotary wheel 25. As shown in fig. 2, the guide bodies 29c, 29c of the 1 st guided member 29A and the 2 nd guided member 29B are provided with recesses that are open upward and both sides in the door width direction when viewed in the door width direction, so as to receive the lower end side portions of the 1 st driven rotating wheel 21 and the 2 nd driven rotating wheel 25. With such a configuration, the dimension in the vertical direction can be made compact while suppressing interference with the 1 st driven rotary wheel 21 and the 2 nd driven rotary wheel 25. The guide body 29c of the 1 st guided member 29A is provided with a coupling portion 29e to which the lower displacement portion 28b of the string-like transmission body 28 is coupled. The coupling portion 29e is disposed to be located in the recess of the guide body 29 c.

As shown in fig. 2, the rope-like transmission body 28 is disposed above the groove bottom plate-like portion 12 at a position biased to one side in the door thickness direction, in an upper side displacement portion 28a that displaces on the upper surface side of the groove bottom peripheral surfaces of the annular grooves 21a, 25a of the 1 st and 2 nd driven rotating wheels 21, 25. The rope-shaped transmission body 28 is disposed at the groove width direction central portion in the guide groove 11 so that the lower side displacement portion 28b that displaces on the lower surface side of the groove bottom peripheral surfaces of the annular grooves 21a, 25a of the 1 st and 2 nd driven rotation wheels 21, 25. The string-like transmission body 28 may be configured such that the coupling portion 29e of the 1 st guided member 29A is fixed to a part formed in a ring shape, or may be formed in a substantially ring shape such that both longitudinal side ends are coupled to both door width direction sides of the coupling portion 29 e. The string-like transmission member 28 may be a structure which is not easily elongated, and may be, for example, a metal wire, a twisted string obtained by twisting suitable fibers, a string obtained by combining fibers, or the like.

As shown in fig. 7, the rope-like transmission body 28 thus formed as a rope-like member is wound around the driving rotary wheel 31 more than once. With such a configuration, the driving rotary wheel 31 can be made more compact in the axial direction than when the string-like transmission body 28 is made into a belt or a chain, and occurrence of noise or the like can be suppressed, while slipping of the string-like transmission body 28 with respect to the driving rotary wheel 31 can be suppressed.

The drive rotary wheel 31 is formed in a thin disc shape having a relatively small dimension along the axial direction of the drive wheel shaft 32. The driving rotation wheel 31 is formed as a pulley having an annular groove 31a on the outer peripheral surface to which the rope-like power transmission body 28 is engaged. The drive rotation wheel 31 is provided so that one surface in the thickness direction faces the upper surface of the groove bottom plate-like portion 12. The driving rotation wheel 31 is provided so that a portion of the circumferential surface of the groove bottom of the annular groove 31a on the side of the door thickness direction is positioned at a position corresponding to the position of the upper displacement portion 28a of the string-like transmission body 28 arranged on the side of the door thickness direction. The upper displacement portion 28a of the string-like transmission body 28 is wound around the driving rotation wheel 31 approximately once. The intersection of the upper displacement portions 28a wound around the driving rotor 31 is set to a position substantially corresponding to the upper surface portions of the 1 st driven rotor 21 and the 2 nd driven rotor 25 when viewed in the door width direction. The outer peripheral surfaces of the driving rotor 31, the 1 st driven rotor 21, and the 2 nd driven rotor 25 around which the string-like transmission body 28 is wound (the groove bottom peripheral surfaces of the annular grooves 21a, 25a, and 31 a) may be formed of a soft material having slip resistance by double-color molding or the like.

The driving rotation wheel 31 is provided with a gear (rotation wheel side gear) 33 for transmitting rotation to a gear (motor side gear) 37 provided in a motor 35 for rotating the driving rotation wheel 31. In the present embodiment, bevel gears (straight bevel gears in the drawing) are shown for example, which are engaged with each other in correspondence with the drive wheel shafts 32 for driving the rotary wheels 31 and the output shafts 36 of the motors 35, which are provided so as to intersect with each other. The rotating wheel side gear 33 is non-rotatably mounted with respect to one end (upper end in the drawing) of the driving wheel shaft 32 that drives the rotating wheel 31. The motor-side gear 37 is non-rotatably mounted with respect to the output shaft 36 of the motor 35. The rotary wheel side gear 33 and the motor side gear 37 may be appropriately configured according to the arrangement of the driving rotary wheel 31 and the motor 35. The rotating wheel side gear 33 and the motor side gear 37 are not limited to the direct engagement, and may be configured to transmit rotation via an appropriate intermediate gear or the like.

The 1 st fixing member 34 and the 2 nd fixing member 38 are provided in the driving mechanism 20, and the 1 st fixing member 34 fixes the driving rotation wheel 31 to the upper rail 10; the 2 nd fixing member 38 is separate from the 1 st fixing member 34, and detachably fixes the motor 35 to the upper rail 10 to which the driving rotation wheel 31 is fixed. With such a configuration, when the motor 35 is disengaged, the rotation transmission state (engagement in the present embodiment) of the gears 33 and 37 is released in a state where the driving rotation wheel 31 is fixed to the upper rail 10. Further, the motor 35 can be disengaged from the upper rail 10 by removing the 2 nd fixing member 38 from the upper rail 10. In addition, when the motor 35 is fixed, the gears 33 and 37 can be brought into a rotation transmission state (engaged in the present embodiment) in a state where the drive rotation wheel 31 is fixed to the upper rail 10, and the motor 35 can be fixed to the upper rail 10 via the 2 nd fixing member 38. Accordingly, when the motor 35 is attached to or detached from the upper rail 10, the rope-like power transmission body 28 does not need to be detached, wound, or tension adjusted, and maintenance performance can be improved. That is, in a state where the drive rotation wheel 31 is allowed to transmit drive to the string-like transmission body 28, it can be said that only the motor 35 is attached to and detached from the upper rail 10. The drive rotation wheel 31 and the motor 35 are fixed to the groove bottom plate portion 12 via the 1 st fixing member 34 and the 2 nd fixing member 38.

The 2 nd fixing member 38 is provided with fixing portions 38d and 38e fixed to the fixed portions 34d and 34e provided in the 1 st fixing member 34. With such a configuration, the fixing portions 38d and 38e of the 2 nd fixing member 38 are fixed to the fixed portions 34d and 34e of the 1 st fixing member 34, whereby the motor 35 can be relatively reliably aligned with respect to the driving rotary wheel 31. This makes it possible to comparatively reliably bring the rotation wheel side gear 33 of the drive rotation wheel 31 and the motor side gear 37 of the motor 35 into a rotation transmission state (in the present embodiment, into engagement).

Further, one of the 1 st fixing member 34 and the 2 nd fixing member 38 is provided with a positioning projection 34c fitted into a positioning recess 38c provided in the other. With such a configuration, the 2 nd fixing member 38 can be easily aligned when being fixed to the 1 st fixing member 34.

The 1 st fixing member 34 includes a fixing piece portion 34a and a wheel bearing tab portion 34b, wherein the fixing piece portion 34a is fixed along the upper surface of the groove bottom plate portion 12, and rotatably holds one end (lower end in the drawing) of the drive wheel shaft 32 of the drive rotation wheel 31; the wheel bearing lug portion 34b rotatably holds the upper end side of the drive wheel shaft 32. The fixing piece portion 34a may be fixed to the groove bottom plate portion 12 by an appropriate fixing tool such as a screw. The wheel bearing lug portion 34b is disposed above the fixing piece portion 34a so as to face each other with a space for disposing the driving rotation wheel 31 therebetween. The rotating wheel side gear 33 is provided so as to be exposed on the upper surface side of the wheel bearing lug portion 34 b.

The fixed parts 34d, 34e of the 1 st fixing member 34 include a 1 st fixed part 34d on one side in the door thickness direction and a 2 nd fixed part 34e on the other side in the door thickness direction. The 1 st fixed portion 34d and the 2 nd fixed portion 34e are formed in a substantially flat plate shape having a thickness direction in the door thickness direction, and are provided at a distance from each other in the door thickness direction. In the illustrated example, the 1 st fixed portion 34d is provided so as to hang down from one side edge portion in the door thickness direction of the wheel bearing tab portion 34 b. The 2 nd fixed portion 34e is provided so as to stand from the door thickness direction of the wheel bearing tab portion 34b toward the other side edge portion.

Further, a positioning projection 34c is provided so as to project from one end portion in the door width direction of the wheel bearing tab portion 34b of the 1 st fixing member 34.

The 2 nd fixing member 38 includes a fixing piece portion 38a fixed along the upper surface of the groove bottom plate portion 12. In the figure, an example is shown in which the fixing piece portion 38a is provided at a lower end portion of a plate-like portion fixed to an end portion of the motor 35 on a different side from the output shaft 36 in the axial direction. The fixing piece portion 38a may be fixed to the groove bottom plate portion 12 by an appropriate fixing tool such as a screw.

The 2 nd fixing member 38 includes a plate-like holding piece portion 38b, and the holding piece portion 38b is fixed to an end portion of the motor 35 on the output shaft 36 side in the axial direction. The holding piece portion 38b is provided with a through hole through which the output shaft 36 is inserted. The holding piece 38b is fixed to the motor 35 (motor case) by an appropriate fastening tool such as a screw. The holding piece portion 38b is provided with a positioning recess 38c into which the positioning projection 34c is fitted.

The fixing portions 38d and 38e of the 2 nd fixing member 38 include a 1 st fixing portion 38d on one side in the door thickness direction and a 2 nd fixing portion 38e on the other side in the door thickness direction, corresponding to the fixed portions 34d and 34e of the 1 st fixing member 34. The 1 st fixing portion 38d and the 2 nd fixing portion 38e are formed in a substantially flat plate shape having a thickness direction which is a door thickness direction, and are provided at intervals in the door thickness direction. In the illustrated example, the 1 st fixing portion 38d is provided so as to protrude from one side edge portion of the holding piece portion 38b in the door width direction. The 2 nd fixing portion 38e is provided so as to extend in the door width direction from the other side edge portion in the door thickness direction of the holding piece portion 38 b. The 1 st fixing portion 38d and the 2 nd fixing portion 38e are fixed by a suitable fastening tool such as a screw along one side of the 1 st fixed portion 34d and the 2 nd fixed portion 34e of the 1 st fixing member 34 in the door thickness direction. Further, the 1 st fixing portion 38d and the 2 nd fixing portion 38e are provided with insertion holes through which the shaft portions of the fastening tool are inserted so as to communicate with female screw holes provided in the 1 st fixed portion 34d and the 2 nd fixed portion 34e of the 1 st fixing member 34.

Further, the lower end portion of the 2 nd fixing portion 38e is provided with an abutting portion 38f, and the lower end surface of the abutting portion 38f abuts against the upper surface of the wheel bearing lug portion 34b of the 1 st fixing member 34 in a surface contact manner. With such a configuration, the positioning protrusion 34c and the positioning recess 38c are fitted to each other, and the abutting portion 38f is abutted against the upper surface of the wheel bearing lug portion 34b, whereby the 2 nd fixing member 38 can be easily aligned with respect to the 1 st fixing member 34.

The motor unit including the 2 nd fixing member 38 and the motor 35 having the above-described structure is detachable from the upper rail 10 in a state where the rotating wheel unit including the 1 st fixing member 34 and the driving rotating wheel 31 is attached to the upper rail 10. That is, the motor unit can be easily detached from the upper rail 10 by detaching the fixing piece portion 38a from the groove bottom plate portion 12 and detaching the 1 st fixing portion 38d and the 2 nd fixing portion 38e from the 1 st fixed portion 34d and the 2 nd fixed portion 34e of the 1 st fixing member 34. The 1 st fixing member 34 for fixing the drive rotation wheel 31 to the upper rail 10 and the 2 nd fixing member 38 for fixing the motor 35 to the upper rail 10 are not limited to the above-described configuration, and may be of various other configurations.

The motor 35 may be a servo motor or the like capable of rotating in the forward and reverse directions and controlling the rotation speed.

In the above example, the driving wheel shaft 32 for driving the rotating wheel 31 is provided in the door height direction, but may be provided in the door thickness direction. With this 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 dimension along the door height direction can be made compact as compared with the case where the motor 35 is disposed so that the axial direction is the door height direction. In this case, the 1 st fixing member 34 or the 2 nd fixing member 38 may be appropriately deformed.

In the present embodiment, as shown in fig. 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 unit for supplying drive power to the motor 35, a control circuit connected to the motor 35 via an appropriate signal line or the like, and the like. The motor 35 is controlled by the control block 39 to rotate in the forward direction or in the reverse direction to move the sliding door panel 9 to the fully open position or the closed position. In the illustration, the control block 39 is formed in a substantially rectangular column shape elongated in the door width direction. Further, an upper displacement portion 28a of the rope-like transmission body 28 is disposed along a lower end portion on one side in the door thickness direction of the control block 39 (see fig. 4). Further, a notch-like recess for receiving the upper displacement portion 28a may be provided at a lower end side portion of the control block 39 on one side in the door thickness direction so as to extend over the entire length.

As shown in fig. 3, 4, and 8, the present embodiment includes a position detecting unit 40 that detects the position of the sliding door panel 9, and the position detecting unit 40 includes a variable resistor 44 that rotates according to the displacement of the string-like power transmission body 28. With such a configuration, the position (absolute position) of the sliding door panel 9 can be detected from the resistance value (voltage) of the variable resistor 44.

In the present embodiment, as shown in fig. 8, the position detecting unit 40 includes a detection rotation wheel 41 and a biasing member 48, and the detection rotation wheel 41 is rotated by the string-like transmission body 28 to rotate the variable resistor 44; the biasing member 48 biases the detection rotation wheel 41 against the string-like transmission body 28. With such a configuration, the loosening of the string-like power transmission body 28 can be suppressed, and the position detecting unit 40 can be caused to function as a tension adding mechanism that increases the tension (tension) of the string-like power transmission body 28.

The position detecting section 40 is provided on the door width direction side of the control block 39. The control block 39 is provided so as to be located between the position detecting section 40 and the driving section 30. The driving unit 30, the control block 39, and the position detecting unit 40 are provided so as to be located between the 1 st driven rotary wheel 21 and the 2 nd driven rotary wheel 25.

As shown in fig. 8 (a) and (b), the position detecting unit 40 includes a pair of holding members 46, and the pair of holding members 46, 46 hold the detection rotating wheel 41 so as to sandwich from both sides in the door thickness direction along the axial direction. The position detecting section 40 further includes a detection fixing member 49 fixed to the upper rail 10, and the detection fixing member 49 rotatably holds the holding members 46, 46 about an axis (held axis) 47 in the door thickness direction.

The detection rotary wheel 41 has a relatively small thin disk shape in the axial direction, and has a pulley-like shape with an annular groove on its outer peripheral surface for engagement of the string-like transmission body 28. The detection rotation wheel 41 is held such that the wheel shaft thereof is rotatable with respect to the holding members 46, 46 on both sides. In this embodiment, the following structure is adopted: the 1 st gear 42 and the 2 nd gear 43 are provided as gears that transmit rotation of the gear portion 41a provided coaxially and fixedly to the detection rotation wheel 41 to rotate the variable resistor 44.

The gear portion 41a of the detection rotary wheel 41 is formed in a small diameter shape and is provided on one side in the axial direction of the detection rotary wheel 41. The 1 st gear 42 is formed in a larger diameter than the gear portion 41a, and is provided so as to mesh with the gear portion 41 a. The wheel shaft of the 1 st gear 42 is held by one holding member 46. The 2 nd gear 43 is formed to have a larger diameter than the gear portion 41a and a smaller diameter than the 1 st gear 42, and is provided so as to mesh with the 1 st gear 42. One end of the wheel shaft of the 2 nd gear 43 is held by one holding member 46, and the other end of the wheel shaft of the 2 nd gear 43 is coupled to the rotor 44a so that the rotor 44a of the variable resistor 44 rotates.

The gear portion 41a, the 1 st gear 42, and the 2 nd gear 43 constitute a speed reducing mechanism that reduces the rotation of the detection rotation wheel 41 and transmits the reduced rotation to the variable resistor 44. The gear portion 41a, the 1 st gear 42, and the 2 nd gear 43 may be configured such that when the sliding door panel 9 (the sliding door panel 9 having the maximum door width W1) is moved from the closed position to the fully open position, the rotor 44a of the variable resistor 44 rotates within a detectable range (within one rotation).

The variable resistor 44 may be a so-called rotational orientation sensor that outputs a voltage (resistance value) proportional to the rotational angle of the rotor 44 a.

The position detecting unit 40 is provided with a detecting board 45, and the variable resistor 44 is fixed to the detecting board 45, and the output voltage of the variable resistor 44 is sent to the control block 39. The detection board 45 is fixed to the other holding member 46 by an appropriate fixing tool.

In the position detecting unit 40 configured as described above, the rotation of the rotary wheel 41 is detected in response to the displacement of the upper displacement portion 28a of the string-like transmission body 28 in the door width direction, and the rotation is transmitted by the 1 st gear 42 and the 2 nd gear 43, so that the rotor 44a of the variable resistor 44 is rotated. The motor 35 is controlled based on the position information and the movement direction (closing side or opening side) information of the sliding door panel 9 calculated based on the voltage (resistance value) output according to the rotation angle of the rotor 44a, and the sliding door panel 9 is opened and closed.

In addition, a variable resistor 44 capable of detecting the position of the sliding door panel 9 having the maximum door width W1 may be provided, and in the case of constructing the sliding door panels 9A having different door widths W2, the detection range of the rotation angle of the rotor 44a may be appropriately set and changed according to the movement range of the sliding door panel 9A.

The pair of holding members 46, 46 are substantially flat plates arranged in 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 portion of the fastening tool 7 is inserted, and the fastening tool 7 is screwed into a female screw hole provided in a boss-like projection portion of the other holding member 46.

The detection rotation wheel 41 is rotatably held on one side in the longer direction of the holding members 46, and a boss-like projection provided on the lower end side of the other end in the longer direction constitutes a held shaft 47 rotatably held by the detection fixing member 49.

The detection fixing member 49 includes: a fixing piece part fixed along the upper surface of the groove bottom plate part 12; and support sheet parts on both sides, which are provided to stand up from both side edge parts of the fixing sheet part in the door thickness direction, and the detection fixing member 49 is opened to the upper side and both sides in the door width direction. Between the support pieces on both sides of the detection fixing member 49, holding members 46, 46 holding the detection rotating wheel 41 and the like are inserted and held by a holding shaft 47. The held shafts 47 of the holding members 46, 46 may be held by a fastening tool 7 having a shaft inserted through a shaft insertion hole provided in one of the support pieces of the detection fixing member 49. Further, a shaft portion coaxial with the held shaft 47 rotatably inserted into an insertion hole provided in the other support piece portion of the detection fixing member 49 may be provided on the side surface of the door thickness Fang Xiangwai of the other holding member 46. The form of rotatably holding the holding members 46, 46 holding the detection rotary wheel 41 and the like about the held shaft 47 is not limited to this form, and other various modifications are possible.

The urging member 48 is a torsion coil spring (torsion spring) through which the held shaft 47 is inserted in the coil portion. One arm end 48a of the urging member 48 is abutted against the upper end side of the other end in the longer direction of the holding member 46 holding the detection rotation wheel 41, and the other arm end 48b of the urging member 48 is abutted against the upper surface of the fixing piece portion of the detection fixing member 49. With this structure, the urging member 48 is configured as follows: the upper displacement portion 28a of the rope-shaped transmission body 28, which is directed downward by the detection rotation wheel 41, is biased to press against the detection rotation wheel. The biasing member 48 is not limited to a torsion coil spring, but may be other spring members such as a leaf spring, a compression coil spring, and an extension coil spring, and may be a rubber member.

The position detecting unit 40 is not limited to a structure functioning as a tension adding mechanism for increasing the tension of the string-like transmission body 28. For example, a variable resistor 44 may be provided to rotate in conjunction with any one of the 1 st driven rotary wheel 21, the 2 nd driven rotary wheel 25, and the driving rotary wheel 31. Instead of providing the variable resistor 44, a configuration may be adopted in which a plurality of position sensors are provided so as to be able to detect the position of the sliding door panel 9, a configuration in which limit switches are operated at the closed position and the fully open position, or the like.

As shown in fig. 5 and 9, one of the upper rail 10 and the upper frame 3 is provided with a plurality of engaging portions 17 at intervals in the door width direction, and the engaging portions 17 are held so as to be movable in the horizontal direction. In addition, the other of the upper rail 10 and the upper frame 3 is provided with a plurality of receiving recesses 16 opened in the horizontal direction at intervals in the door width direction, and the receiving recesses 16 receive the catching portions 17, respectively. With such a configuration, the upper rail 10 can be fixed (temporarily fixed) to the upper frame 3 by inserting the engaging portion 17 provided on one side into the receiving recess 16 provided on the other side. Further, since a plurality of positions of the upper rail 10 in the longer direction can be fixed to a plurality of positions of the upper frame 3 in the longer direction, the upper rail 10 is less likely to be fixed obliquely to the upper frame 3, and workability can be improved. Further, the hooking portion 17 displaced in the horizontal direction can be inserted into the receiving recess 16 opened in the horizontal direction to be fixed. Therefore, the elastic claw portion inserted into the through hole provided in the upper rail 10 so as to penetrate in the vertical direction along with elastic deformation is provided on the upper frame 3 side, for example, and can be fixed relatively firmly. In addition, even when the positional deviation is slightly in the horizontal direction, the positional deviation can be absorbed, that is, the hooking portion 17 can be inserted into the receiving recess 16.

The hooking portion 17 is held so as to be displaceable in the door width direction with respect to one of the sides, and the receiving recess 16 is opened in the door width direction. With such a configuration, the hooking portion 17 displaced in the door width direction can be inserted into the receiving recess 16 opened in the door width direction and fixed. This can effectively increase the amount of engagement of the engaging portion 17, as compared with a configuration in which the engaging portion 17 is displaced in the track width (door thickness) direction of the upper track 10 which is made relatively narrow.

The engaging portion 17 is biased in the protruding direction by a biasing member 19 with respect to the holding portion 18 provided on one side. Further, an inclined guide surface 17a for retracting the engaging portion 17 by a guide action generated by mutual abutment is provided on either or both of the front end portion in the protruding direction of the engaging portion 17 and the recess dividing portion 15 dividing the receiving recess 16 to which the front end portion is abutted. With such a configuration, when the upper rail 10 is moved upward with respect to the upper frame 3 fixed to the frame base or the like, the engaging portion 17 is retracted against the urging force of the urging member 19 by the inclined guide surface 17a provided at either or both of the front end portion of the engaging portion 17 and the recessed portion 15. Further, when the upper rail 10 is moved further upward and the hooking portion 17 is positioned in the opening of the receiving recess 16, the hooking portion 17 is projected by the urging force of the urging member 19, and is inserted into the receiving recess 16. This can further improve workability as compared with a form in which the hooking portion 17 needs to be slid with a finger or the like.

The receiving recess 16 is provided in the other upper rail 10, and the insertion hole 15d through which the fastening tool 7 fastened to the upper frame 3 is inserted is provided in the recess dividing portion 15 dividing the receiving recess 16. With such a configuration, the fastening tool 7 can be fastened to the upper frame 3 via the insertion hole 15d of the recess dividing portion 15 in a state where the hooking portion 17 is inserted into the receiving recess 16 and temporarily fastened, and thus can be fixed positively. The recessed portion 15 can function as an insertion portion of the fastening tool 7, and the structure can be simplified as compared with a structure in which an insertion hole of the fastening tool 7 is provided in another portion.

That is, the recess dividing portion 15 dividing the receiving recess 16 functions as a fixing tool for fixing the fixed tool 7 to the upper frame 3 as the fixing target of the upper rail 10. The recess dividing portion 15 is provided to be larger in dimension in the up-down direction than the driving mechanism 20, and is attached to the groove bottom plate portion 12 of the upper rail 10 at a plurality of positions with intervals in the longer direction. With such a configuration, the fastening tool 7 is fastened to the upper frame 3 via the plurality of recessed portions 15, and the upper rail 10 can be fastened to the upper frame 3. In addition, when the upper rail 10 is adjusted in size according to the door widths W1 and W2, the mounting positions of the recess dividing portions 15 can be changed to correspond to each other. Further, since the dimensions of these recessed portions 15 in the up-down direction are set larger than the drive mechanism 20, the upper rail 10 can be fixed to the upper frame 3 without causing interference between the drive mechanism 20 and the upper frame 3. 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 driving mechanism 20 on the upper frame 3 side.

The receiving recess 16 provided in the upper rail 10 is provided in a space where the constituent members of the drive mechanism 20 are not provided (see fig. 3 and 4). With such a configuration, the receiving recess 16 can be provided by using a free space other than the component parts provided with the driving mechanism 20, and the dimension of the upper rail 10 in the up-down direction can be made compact. In the drawings, for example, a recess dividing portion 15 that divides the receiving recess 16 is provided between the 1 st driven rotary wheel unit and the position detecting portion 40, and between the driving portion 30 and the 2 nd driven rotary wheel unit, respectively. Further, an appropriate number of recessed dividing portions 15 may be provided at intervals in the door width direction in accordance with the length of the upper rail 10. Fig. 1 illustrates, for example, two recessed portions 15 and 15 provided in each of the 1 st half 10A and the 2 nd half 10B of the longest upper rail 10. That is, the example in which four recessed portions 15, 15 are provided in the upper rail 10 at intervals in the longer direction is shown. Fig. 10 illustrates, for example, an upper rail 10C having a length substantially equal to that of the 1 st half 10A of the longest upper rail 10, and two recessed dividing portions 15, 15 provided at intervals in the longer direction.

The recess region 15 includes: a fixing piece 15a fixed along the upper surface of the groove bottom plate 12; and a recess dividing portion 15b provided so as to stand up from the fixing piece portion 15a, and provided with a receiving recess 16. In the present embodiment, the recess dividing portions 15b and 15b are provided in pairs at intervals in the door width direction, and the fixing piece portions 15a and 15a are provided at the lower end portions thereof. Further, receiving recesses 16 are provided in the recess dividing portions 15b, 15b so as to penetrate in the door width direction. In the illustrated example, the receiving recess 16 is formed in a substantially square hole shape when viewed in the door width direction.

The recessed region 15 includes a fixed piece 15c, and the fixed piece 15c is provided so as to be bridged between upper end portions of the recessed region 15b and the recessed region 15b, and has an insertion hole 15d penetrating in the vertical direction. The recess dividing portion 15 may be formed by fixing the fixing pieces 15a, 15a on both sides to the groove bottom plate portion 12 by a suitable fastening tool such as a screw. The recess dividing portion 15 is not limited to a substantially U-shaped structure including the fixing pieces 15a, the recess dividing portions 15b, and the fixed piece 15c, and may be of various other structures.

As shown in fig. 5, the engaging portion 17 is held by a holding portion 18 fixed to the upper frame 3 as one of the members. In the present embodiment, an example is shown in which the holding portion 18 is fixed to the groove bottom of the receiving groove 3a provided in the upper frame 3. The hooking units including these hooking portions 17 and holding portions 18 are provided at a plurality of places with intervals in the longer direction of the upper frame 3 so that the hooking portions 17 can be inserted into the receiving recesses 16 provided at the recess dividing portions 15. In the illustration, the hooking units adjacent to each other in the longer direction of the upper frame 3 are illustrated as being provided such that the respective hooking portions 17, 17 are opposite to each other in the door width direction with respect to the protruding direction of the holding portions 18, 18.

As shown in fig. 9, the hooking portion 17 is substantially rectangular parallelepiped long in the door width direction. In the present embodiment, an example is shown in which the inclined guide surface 17a is provided at the front end portion of the hooking portion 17 in the protruding direction, which is one end portion in the door width direction. The inclined guide surface 17a is formed so as to face the door width direction and obliquely downward, and is provided across substantially the entire front end surface of the hooking portion 17 in the protruding direction.

Further, the hooking portion 17 is provided with an anti-loosening protrusion 17b that is inserted into a guide groove 18b provided in the holding portion 18. The anti-loosening projections 17b are omitted from the drawings, and are provided on both side surfaces of the hooking portion 17 in the door thickness direction.

Further, a receiving recess 17c for receiving one end side of the urging member 19 is provided in a base end portion of the hooking portion 17, which is the other end portion in the door width direction, so as to open toward the outer side in the door width direction.

The holding portion 18 is formed so as to divide a receiving recess that is opened in the door width direction and receives the hooking portion 17. In the drawings, the holding portion 18 is exemplified by a lower surface sheet portion along the lower surface side of the hooking portion 17, two side sheet portions along the two side surfaces of the hooking portion 17 in the door thickness direction, and a base end sheet portion facing the base end portion of the hooking portion 17. The other end of the urging member 19 abuts against the base end piece portion of the holding portion 18.

Further, the fixing piece portions 18a are provided on each of the both side piece portions and the base end piece portion of the holding portion 18 so as to be fixed along the groove bottom of the receiving groove 3a of the upper frame 3, for example. These fixing pieces 18a are provided with insertion holes through which shaft portions of fastening tools such as screws fixed to the upper frame 3 are inserted.

Further, the holding portion 18 is provided with guide grooves 18b, 18b for receiving the anti-loosening projections 17b of the hooking portion 17 so as to be freely displaced in the door width direction, for example. These guide grooves 18b, 18b are provided to extend in the door width direction. Further, the upper surface sheet portions 18c, 18c along the upper surface side of the hooking portion 17 are shown by way of example as being provided on both side sheet portions of the holding portion 18.

The urging member 19 is configured to urge the hooking portion 17 to push out with respect to the holding portion 18. The biasing member 19 may be, for example, a compression coil spring.

When the upper rail 10 to which the recess portion 15 is fixed is temporarily fixed to the upper frame 3 to which the hooking means having the above-described structure is fixed, the upper rail 10 is moved upward with respect to the upper frame 3 as shown in fig. 9 (b). When the upper rail 10 is moved upward, as shown in fig. 9 (c), the corner of the one of the recess dividing portions 15b and the fixed piece portion 15c abuts against the inclined guide surface 17a of the hooking portion 17, and the hooking portion 17 is displaced by the guide so as to be pushed into the holding portion 18. Next, if the upper rail 10 is moved further upward, as shown in fig. 9 d, the hooking portion 17 is inserted into the receiving recess 16 of the recess dividing portion 15, and the upper rail 10 is temporarily fixed (temporarily held) with respect to the upper frame 3. In this way, the fixing tool 7 may be fixed to the upper frame 3 via the insertion hole 15d of the recessed portion 15 in a state where the upper rail 10 is temporarily fixed to the upper frame 3, and the upper rail 10 may be fixed to the upper frame 3. Although not shown, the groove bottom plate-like portion 12 of the upper rail 10 is provided with an insertion hole having a larger diameter than the head portion of the fastening tool 7.

The engaging portion 17, the holding portion 18 for holding the engaging portion, and the urging member 19 for urging the engaging portion 17 in the protruding direction with respect to the holding portion 18 are not limited to the above-described configuration, and may be of other various configurations. In the above example, the inclined guide surface 17a is provided at the distal end portion of the engagement portion 17, but the inclined guide surface may be provided at a portion where the distal end portion of the engaged portion 17 of the recess portion 15 abuts instead of or in addition to this. In the above example, the hooking portion 17 is provided in the upper frame 3 and the receiving recess 16 is provided in the upper rail 10, but these may be provided on the opposite side. That is, the upper frame 3 may be provided with the receiving recess 16 and the upper rail 10 may be provided with the hooking portion 17.

As shown in fig. 2, the door opening/closing device 1 may further include covers 50, 50 disposed on both sides of the upper rail 10 in the door thickness direction to cover the space between the upper frame 3 and the upper rail 10. These covers 50, 50 may be fixed to the upper rail 10 by an appropriate adhesive, a fastening tool, or the like, or may be provided with a locking portion that is locked with a locked portion provided on the upper rail 10. In the case of the sleeve wall housing as described above, the sleeve wall side cover 50 may be provided so as to cover the door head side vertical frame 4 to the muntin 6.

Next, a modified example of the door opening/closing device will be described with reference to fig. 11.

The differences from the above examples will be mainly described, and the same reference numerals are given to the same components, and the description thereof will be omitted or briefly described. The same operational effects as those of the above examples will be omitted or briefly described.

As shown in fig. 11 (a) to (c), the door opening/closing device 1B according to the present modification mainly has a structure different from the above-described example in that the engaging portion 17A and the receiving recess 16A are formed.

In this modification, the following structure is adopted: a fixing screw 19A for fixing the hooking portion 17A in the receiving recess 16A by a screwing operation is provided in one of the recess dividing portion 15A and the hooking portion 17A dividing the receiving recess 16A. With such a configuration, the fastening portion 17A can be fixed in the receiving recess 16A by screwing the fixing screw 19A in a state where the fastening portion 17A is inserted into the receiving recess 16A.

In this modification, the following structure is adopted: the recess dividing portion 15A is provided on the upper frame 3 side, and a hooking unit including a hooking portion 17A is provided on the upper rail 10D side. In the figure, a set of recess portions 15A and engaging means are illustrated, and the recess portions 15A and the engaging means are provided at a plurality of positions with intervals in the longer direction of the upper rail 10D as described above.

The hooking portion 17A is held so as to be displaceable in the door width direction with respect to a holding portion 18A provided in the upper rail 10D. The hooking portion 17A may be provided to extend in the door width direction, and may be arranged in a substantially flat plate shape in the vertical direction in the thickness direction.

Further, a female screw hole penetrating in the up-down direction is provided at a front end portion of the hooking portion 17A on one end side in the door width direction inserted into the receiving recess 16A, so that the fixing screw 19A is screwed. Further, a handle portion 17Ab for displacing the hooking portion 17A in the door width direction is provided at the base end portion on the other end side in the door width direction of the hooking portion 17A. In the figure, the handle 17Ab is illustrated as a piece portion provided so as to hang down downward from the base end portion of the hooking portion 17A.

The holding portion 18A has the following structure: the groove bottom plate-like portion 12 (see fig. 2, etc.) fixed to the upper rail 10D is provided so as to protrude upward, and a holding hole penetrating in the door width direction is provided at an upper end portion thereof to hold the hooking portion 17A so as to be displaceable in the door width direction.

The fixing screw 19A has the following structure: the shaft portion (male screw portion) side is disposed upward, and a head portion serving as an operation portion is provided at a lower end portion. The head of the fixing screw 19A may be configured to be operated by a finger or may be configured to be operated by an appropriate tool.

The recess region 15A has the following structure: the receiving recess 16A is opened in the door width direction so as to receive the front end portion of the hooking portion 17A. An example of opening the receiving recess 16A on one side in the door width direction and on both sides in the door thickness direction is shown in the drawings.

The recessed portion 15A includes a fixing piece portion 15Aa fixed to the bottom of the receiving groove 3a of the upper frame 3, and a hanging piece portion 15Ab hanging from the edge portion of the other end portion of the fixing piece portion 15Aa in the door width direction. The recess dividing portion 15A includes a holding piece portion 15Ac extending from the lower end portion of the hanging piece portion 15Ab toward one side in the door width direction. The receiving recess 16A is defined by the fixing piece 15Aa, the hanging piece 15Ab and the holding piece 15Ac. Further, in the holding piece portion 15Ac, a notch-shaped recess that receives the shaft portion of the fixing screw 19A is provided so as to open toward one side in the door width direction and penetrate in the up-down direction. In the drawings, a movement suppressing portion that bends downward and suppresses movement of the head portion of the fixing screw 19A toward one side in the door width direction is provided at the tip end portion of the holding piece portion 15Ac. The recessed portion 15A may be fixed to the upper frame 3 by an appropriate fastening tool.

In this modification, when the upper rail 10D is fixed to the upper frame 3, as shown in fig. 11 (a), the upper rail 10D is positioned at a position where the engagement portion 17A can be inserted into the receiving recess 16A fixed to the recess dividing portion 15A of the upper frame 3. 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 end of the hooking portion 17A. Next, as shown in fig. 11 (b), the hooking portion 17A is displaced in the door width direction, and the tip portion thereof is inserted into the receiving recess 16A. Next, as shown in fig. 11 (c), the fixing screw 19A may be tightened to hold the holding piece 15Ac between the head of the fixing screw 19A and the tip of the hooking portion 17A, thereby fixing the upper rail 10D to the upper frame 3. After the fixing in this manner, the appropriate portion of the upper rail 10D may be further fixed to the upper frame 3 by an appropriate fixing tool or a fastening tool such as a screw.

In this modification, the urging member or the inclined guide surface may be provided to urge the hooking portion 17A in the protruding direction.

In the above-described examples, the engaging portions 17 and 17A are made to be displaceable in the door width direction and the receiving recesses 16 and 16A are made to be opened in the door width direction, but the present invention is not limited to this configuration. For example, the hooking portions 17 and 17A may be displaced in the door thickness direction or in a direction such as a diagonal horizontal direction with respect to the door thickness direction, and the receiving recesses 16 and 16A may be opened in a direction in which the hooking portions 17 and 17A can be received.

The door opening/ closing devices 1, 1A, and 1B according to the above-described respective embodiments may not be provided with the hooking means including the hooking portions 17 and 17A and the receiving recesses 16 and 16A. In this case, the upper rails 10, 10C, 10D may be fixed to the upper frame 3 by a suitable fixing tool or a fastening tool such as a screw.

Next, another modification of the door opening/closing device will be described with reference to fig. 12 to 14.

The differences from the above examples will be mainly described, and the same reference numerals are given to the same components, and the description thereof will be omitted or briefly described. The same operational effects as those of the above examples will be omitted or briefly described.

In the present modification, the main difference from the above example is the structure of the 1 st fixing member 34A and the 2 nd fixing member, and the 1 st fixing member 34A fixes the driving rotation wheel 31 to the upper rail 10; the 2 nd fixing member fixes the motor 35 to the upper rail 10.

As shown in fig. 12 and 14, the door opening/closing device 1C according to the present modification includes a case 50A, and the case 50A covers and holds a driving portion 30A including a motor 35, and is fixed to the upper rail 10 to constitute a 2 nd fixing member. With such a configuration, it is possible to prevent a worker from touching the driving unit 30A when constructing the upper rail 10 to which the driving unit 30A and the housing 50A are attached. Further, foreign matter such as dust can be suppressed from adhering to the driving portion 30A.

The 1 st fixing member 34A is configured to hold the drive wheel shaft 32A so that the axial direction is up and down, substantially similar to the above example. In the same manner as in the above example, the drive wheel shaft 32A is provided with a drive rotation wheel 31 and a rotation wheel side gear 33 which are coaxial with each other so as to be connected to each other in the axial direction. These driving rotation wheel 31 and rotation wheel side gear 33 may be integrally formed resin molded articles.

In the present modification, the 1 st fixing member 34A is configured to rotatably hold both axial end portions of the drive axle 32A. With such a configuration, the drive axle 32A can be held more stably than in the above example. That is, the drive rotary wheel 31 and the rotary wheel side gear 33 provided on the drive wheel shaft 32A can be stably held. The 1 st fixing member 34A is provided with a fixing piece portion 34Aa substantially similar to the above, and the fixing piece portion 34Aa holds one end portion (a lower end portion in the drawing) of the drive wheel shaft 32A and is fixed so as to be along the upper surface of the groove bottom plate portion 12 of the upper rail 10.

The 1 st fixing member 34A includes: a standing piece portion 34Ab standing from one end portion of the fixing piece portion 34Aa in the door width direction; and a wheel bearing tab 34Ad provided so as to extend from the upper end of the rising tab 34Ab to the other side in the door width direction and face the fixing piece 34 Aa. The other end portion (upper end portion in the drawing) of the drive wheel shaft 32A is rotatably held by the wheel bearing tab portion 34Ad, and the rotating wheel side gear 33 and the drive rotating wheel 31 are disposed between the wheel bearing tab portion 34Ad and the fixing piece portion 34 Aa. The axial both end portions of the drive wheel shaft 32A may be held by the fixing piece portion 34Aa and the wheel bearing tab portion 34Ad via appropriate bearing portions. Such a bearing portion may be an oilless sliding bearing that does not substantially require oil supply. In the case where the driving rotation wheel 31 is made of resin as described above, an appropriate clearance may be provided between the driving rotation wheel and the metal bearing portion to be prevented from being worn.

As shown in fig. 13, the 1 st fixing member 34A is provided with a positioning portion 34Ac, and the positioning portion 34Ac serves as a positioning portion for fixing the housing 50A to the 1 st fixing member 34A (the rotating wheel side gear 33) when the housing 50A is fixed to the upper rail 10. The positioning portion 34Ac is provided so as to protrude outward in the door thickness direction from both sides in the door thickness direction of the lower end portion of the rising piece portion 34Ab (see also fig. 12).

As shown in fig. 12, the case 50A is separated from the 1 st fixing member 34A to constitute a 2 nd fixing member for detachably fixing the motor 35 to the upper rail 10 to which the driving rotation wheel 31 is fixed. The case 50A has a substantially rectangular columnar shape elongated in the door width direction. The housing 50A is integrally provided with a control housing portion 51 for housing a control circuit, a power supply portion, and the like similar to the control block 39. With such a configuration, the control circuit, the power supply unit, and the like connected to the motor 35 are housed in the case 50A housing the motor 35, and thus the assemblability and maintainability can be improved.

The control housing portion 51 is provided at a longer direction side portion of the housing 50A. The control housing 51 is provided with a main power switch at a position corresponding to the switch opening 12a provided so as to penetrate the groove bottom plate-like portion 12 of the upper rail 10. The control housing portion 51 is provided with a passing detection portion for detecting a detection object passing through the doorway 8 (see fig. 1 (a)) at a position corresponding to a detection portion opening 12b provided so as to pass through the groove bottom plate portion 12 of the upper rail 10. The control housing 51 is provided with a control cover that is detachable from the housing 50A so as to cover an upper opening of a housing portion housing the control circuit, the power supply unit, and the like.

As shown in fig. 12 and 13, a gear housing 52 and a motor housing 55 for housing the motor 35 are provided at the other side portion of the housing 50A in the longer direction, and the gear housing 52 houses the rotating wheel side gear 33 held by the 1 st fixing member 34A and the motor side gear 37 engaged therewith.

The motor housing portion 55 is provided adjacent to the control housing portion 51. The motor housing portion 55 is partitioned by a bottom plate portion, side plate portions on both sides in the door thickness direction, and partition wall portions on both sides in the door width direction, and is opened upward. The motor housing portion 55 is provided with holding portions 56, 56 to be held by the holding piece portion 38A fixed to the end portion of the motor 35 on the output shaft 36 side. The holding portions 56 and 56 are holding grooves provided so as to open to face each other and extend vertically in the side plate portions on both sides in the door thickness direction of the motor housing portion 55.

As shown in fig. 13 (b), the motor 35 is accommodated and held in the motor accommodating portion 55 so that the motor-side gear 37 fixed to the output shaft 36 is positioned in the gear accommodating portion 52. On both sides in the door thickness direction of the held piece portion 38A fixed to the motor 35, protruding pieces 39A, 39A are provided so as to protrude outward in the door thickness direction. These protruding pieces 39A, 39A are inserted into the holding portions 56, 56 to be held, and movement in the lower side and horizontal direction of the motor 35 is suppressed. The upward movement of the motor 35 is suppressed by a drive unit cover 58 (see fig. 12) covering the openings of the motor housing 55 and the rotating wheel housing 52.

As shown in fig. 13, the gear housing 52 is provided adjacent to the motor housing 55 and at the other end portion of the housing 50A in the longer direction. The gear housing portion 52 is partitioned by a bottom plate portion, side plate portions on both sides in the door thickness direction, and partition wall portions on both sides in the door width direction, and is opened upward. The bottom plate portion of the gear housing portion 52 is provided above the driving rotation wheel 31. The bottom plate portion of the gear housing 52 is provided above the bottom plate portion of the other portion of the housing 50A including the bottom plate portion of the motor housing 55, so as to be able to receive the driving rotary wheel 31. The bottom plate portion of the gear housing portion 52 is provided with a gear opening 53 into which the wheel bearing tab portion 34Ad and the rising tab portion 34Ab of the 1 st fixing member 34A and the rotating wheel side gear 33 are inserted. The bottom plate portion of the gear housing portion 52 is provided with abutting portions 54, 54 that abut against the positioning portions 34Ac, 34Ac provided in the 1 st fixing member 34A. In the illustrated example, the abutting portions 54, 54 are provided so as to protrude from the inner peripheral edge portion of the gear opening 53 in the direction facing each other. The positioning portions 34Ac, 34Ac of the 1 st fixing member 34A and the abutting portions 54, 54 of the housing 50A are moved and abutted in the door width direction so that the motor side gear 37 held on the housing 50A is in a meshing position with respect to the rotating wheel side gear 33 fixed on the upper rail 10.

The gear opening 53 is formed so as not to interfere with the rising piece 34Ab of the 1 st fixing member 34A and the rotating wheel side gear 33 when the rotating wheel side gear 33 and the motor side gear 37, which are brought into the disengaged state, are moved in the door width direction in the housing 50A to engage with each other (see the two-dot chain line in fig. 13 a). That is, the gear opening 53 is formed so as to allow the relative movement in the door width direction of the rising piece 34Ab and the rotating wheel side gear 33 in the gear opening 53. The gear opening 53 is formed in a shape corresponding to the outer shape of the rising piece 34Ab and the rotating wheel side gear 33 so as to be able to allow relative movement in the door width direction from the viewpoint of reducing the intrusion of foreign matter into the gear housing portion 52. In the illustrated example, the gear opening 53 is formed in a shape in which the abutment portions 54, 54 are provided so as to narrow a boundary portion between an elliptical portion that receives the rotation wheel side gear 33 and a square portion that receives the rising piece portion 34 Ab.

The housing 50A is provided with insertion holes 51a, 51b, 51c for fastening tools for fastening the housing 50A to the upper rail 10. In the illustrated example, a 1 st insertion hole 51a having a long hole shape in the door width direction is provided at one end portion in the longer direction of the control housing portion 51, and a 2 nd insertion hole 51b having a long hole shape in the door width direction is provided at a middle portion in the longer direction of the housing 50A. A 3 rd insertion hole 51c in a circular hole shape is provided at the other side end portion of the housing 50A in the longer direction. The 3 rd insertion hole 51c may be formed in a long hole shape. A notch-shaped recess for receiving the upper displacement portion 28a of the string-shaped transmission body 28 is provided at the lower end side portion of the case 50A on the door thickness direction side, substantially in the same manner as the control block 39 described above, so as to extend over the entire length.

The case 50A is provided with a fastening portion 57 for fastening a fastening tool to a driving portion cover 58 covering upper openings of the gear housing portion 52 and the motor housing portion 55. In the illustrated example, fixing portions 57 are provided at four corners of the gear housing portion 52 and at both corners of the motor housing portion 55 on the control housing portion 51 side, respectively.

The drive unit cover 58 is formed in a shape that covers the upper openings of the gear housing portion 52 and the motor housing portion 55 in a continuous shape. The driving unit cover 58 is provided with a plurality of insertion holes 59 through which the fastening tool is inserted so as to be positioned at positions corresponding to the fastening units 57.

In the door opening/closing device 1C configured as described above, as shown in fig. 12, the case 50A may be fixed to the upper rail 10 in a state where the driving rotation wheel 31 and the rotation wheel side gear 33 of the driving mechanism 20A around which the string-like transmission body 28 is wound are fixed to the upper rail 10. At this time, the case 50A may be placed on the groove bottom plate-like portion 12 of the upper rail 10 in a state where the motor 35 is accommodated and held in the motor accommodating portion 55, and the fastening tool may be inserted into the 1 st and 2 nd insertion holes 51a and 51b formed in long holes, so as to be temporarily fixed to the upper rail 10. Then, the housing 50A is moved in the door width direction to bring the abutting portions 54, 54 into contact with the positioning portions 34Ac, 34Ac of the rising piece portion 34Ab, so that the motor side gear 37 meshes with the rotating wheel side gear 33 disposed in the gear housing portion 52 via the gear opening 53. Next, the fastening tool inserted into the 1 st and 2 nd insertion holes 51a and 51b may be fixed to the upper rail 10 by being inserted into the 3 rd insertion hole 51 c. Further, the driving unit cover 58 may be fixed to the housing 50A.

The case 50A that houses and fixes the driving unit 30A including the motor 35 to the upper rail 10 is not limited to the above-described configuration, and may be of various other configurations.

In the above-described examples, the 1 st fixing members 34 and 34A for fixing the driving rotation wheel 31 and the 2 nd fixing member 38 (the case 50A) for fixing the motor 35 were shown as separate bodies, but the present invention is not limited to this configuration.

In the above example, the drive mechanisms 20 and 20A are provided so as to be accommodated within the length range of the 1 st half 10A of the longest upper rail 10, but the present invention is not limited to this configuration.

In the above example, the 1 st driven wheel shaft 22 and the 2 nd driven wheel shaft 26 of the 1 st driven rotating wheel 21 and the 2 nd driven rotating wheel 25 are provided in an inclined shape, but they may be provided in the door thickness direction or the door height direction.

In the above example, the guide grooves 11 that are opened downward are provided in the upper rails 10, 10C, and 10D, but the guide grooves 11 may be provided so as to be opened toward one side or the upper side in the door thickness direction. In this case, the guided member 29 or the driving mechanisms 20 and 20A may be appropriately deformed.

In the above example, the driving rotary wheel 31, the 1 st driven rotary wheel 21, and the 2 nd driven rotary wheel 25 are formed as pulleys (pulleys), but gears (sprockets) and the like may be formed. The string-like transmission body 28 is not limited to a string-like member that is matched with the driving rotary wheel 31, the 1 st driven rotary wheel 21, and the 2 nd driven rotary wheel 25, and may be a belt, a Ball chain, a chain, or the like. The configurations of the above-described devices, components, and parts of the door opening/ closing devices 1, 1A, 1B, and 1C according to the present embodiment are merely examples, and other various modifications are possible.

Description of the reference numerals

1. 1A-1C door opening and closing device; 10. 10C, 10D; 10A half 1; 11. a guide groove; 12. a groove bottom plate-shaped portion; 20. 20A drive mechanism; 21. a 1 st driven rotary wheel; 22. 1 st driven axle (shaft); 25. a 2 nd driven rotary wheel; 26. a 2 nd driven axle (shaft); 28. a rope-shaped transmission body; 28a upper displacement portion; 28b lower displacement portion; 29. a guided member; 29A 1 st guided member (guided member); 29B 2 nd guided member (guided member); 30A driving part; 31. driving a rotating wheel; 32. drive axle (shaft); 33. a rotating wheel side gear (gear); 34. 34A 1 st fixing member; 35. a motor; 36. an output shaft; 37. motor side gears (gears); 38. a 2 nd fixing member; 40. a position detection unit; 41. detecting a rotating wheel; 44. a variable resistor; 48. a force application member; 50A housing (2 nd fixing member); 9. a sliding door panel; 9a upper end portion; w1 maximum gate width; l1 length (length of longest upper track).

Claims (11)

1. A door opening/closing device comprising an upper rail for guiding a guided member connected to an upper end portion of a sliding door panel, the sliding door panel being suspended and held so as to be slidable in a door width direction, the door opening/closing device being characterized in that,

the device is provided with: a 1 st driven rotary wheel and a 2 nd driven rotary wheel, which are respectively wound around a rope-shaped transmission body connected with the guided member and are arranged at positions separated from each other in the width direction of the door; a driving rotary wheel disposed between the 1 st driven rotary wheel and the 2 nd driven rotary wheel and above the upper rail, for transmitting driving force to the rope-shaped transmission body; and a motor for rotating the driving rotary wheel.

2. The door opening and closing apparatus according to claim 1, wherein,

the rope-shaped transmission body is wound on each of the 1 st driven rotating wheel and the 2 nd driven rotating wheel in a parallel rack shape,

the wheel shafts of the 1 st driven rotary wheel and the 2 nd driven rotary wheel, which are parallel to each other, are provided in an inclined shape so that a lower displacement portion of the rope-shaped transmission body, which is connected to the guided member and is displaced in the door width direction, and an upper displacement portion of the rope-shaped transmission body, which is displaced opposite to the lower displacement portion in the door width direction, are positioned at different positions in the door thickness direction of the upper rail.

3. A door opening and closing apparatus according to claim 1 or 2, wherein,

the motor is provided with a gear for transmitting rotation to a gear provided on the driving rotary wheel,

the door opening/closing device includes: a 1 st fixing member for fixing the driving rotation wheel to the upper rail; and a 2 nd fixing member, separate from the 1 st fixing member, for detachably fixing the motor to the upper rail to which the driving rotation wheel is fixed.

4. The door opening/closing device according to any one of claims 1 to 3, wherein,

the motor drive device includes a housing that houses a drive unit including the motor and is fixed to the upper rail.

5. The door opening/closing device according to any one of claims 1 to 4, wherein,

the drive rotor is disposed such that an axial direction thereof is a door height direction, and the 1 st driven rotor and the 2 nd driven rotor are disposed such that axial directions parallel to each other intersect with the axial direction of the drive rotor.

6. The door opening/closing device according to any one of claims 1 to 5, wherein,

the motor is disposed on one side of the drive rotation wheel in the door width direction so that the axial direction of the output shaft is the door width direction, and is configured to rotate the drive rotation wheel via a gear.

7. The door opening/closing device according to any one of claims 1 to 6, wherein,

the rope-shaped transmission body formed as a rope-shaped member is wound around the driving rotation wheel at least once.

8. The door opening and closing device according to any one of claims 1 to 7, wherein,

the sliding door comprises a position detecting part for detecting the position of the sliding door panel, wherein the position detecting part comprises a variable resistor which is rotated along with the displacement of the rope-shaped transmission body.

9. The door opening and closing apparatus according to claim 8, wherein,

the position detection unit includes: a detection rotation wheel rotated by the string-like transmission body to rotate the variable resistor; and a biasing member that biases the detection rotation wheel so as to push the detection rotation wheel against the string-like transmission body.

10. The door opening and closing device according to any one of claims 1 to 9, wherein,

the upper rail is provided with a guide groove for receiving the guided member in a downward opening manner,

the 1 st driven rotary wheel, the 2 nd driven rotary wheel, the driving rotary wheel, and the motor are fixed to a groove bottom plate portion that partitions a groove bottom of the guide groove.

11. The door opening and closing device according to any one of claims 1 to 10, wherein,

the structure is as follows: the 1 st guided member and the 2 nd guided member which constitute the guided member are connected to the upper end portions of both sides of the sliding door panel in the door width direction,

the door opening/closing device includes a driving mechanism including the rope-like transmission body coupled to the 1 st guided member and sliding the 1 st guided member in a door width direction,

the upper rail is longest by a length of approximately 2 times a preset maximum door width of the sliding door panel, and the driving mechanism is fixed to a 1 st half of the longest upper rail on a longer direction side.

Images