Door opening and closing device

Abstract

The door opening and closing device (1) comprises: an upper rail (10) for guiding a first guided member (15A) and a second guided member (15B) connected to upper end portions (9a) of a sliding door panel (9) on both sides in the door width direction, so as to suspend and hold the sliding door panel so as to slide freely in the door width direction; a driving mechanism (20) connected to the first guided member for sliding the first guided member in the door width direction; and an electronic lock (30) for suppressing the closing of the door in a releasable manner. The above-mentioned sliding door panel in the locked position moves toward the open side; the above-mentioned electronic lock has a latch part (40), which is a long strip extending from a base end part (41) that is held to rotate freely around an axis (42) along the door thickness direction in the direction of the door width, and the front end part (43) engaged with the latch receiving part (19) of the guided part of at least one of the above-mentioned first guided part and the above-mentioned second guided part is moved up and down to the release position on the upper side and the locking position on the lower side.

Description

Technical Field

[0001] The invention relates to a door opening and closing device for opening and closing a sliding door panel. Background Art

[0002] In the past, known door opening and closing device has been provided with an electronic lock that locks the sliding door panel, and slides the guided member at the upper end of the sliding door panel in the door width direction.

[0003] For example, in the following patent document 1, the following automatic locking device is disclosed: it is equipped with a lock shaft rod, which is locked in a locking portion of a key receiving device in a protruding state, and the key receiving device is fixed to a hanging metal device installed on the upper surface of the automatic door, and the automatic locking device is installed on a hanging rail.

[0004] Prior art literature

[0005] Patent Literature

[0006] Patent Document 1: Japanese Patent No. 6214599 Summary of the Invention

[0007] Problems to be solved by the invention

[0008] However, the automatic locking device described in Patent Document 1 is structured so that the lock shaft rod, which moves vertically in the axial direction, is locked in the locking portion of the key receiving device. Therefore, when the automatic door is manually moved toward the opening side, a load perpendicular to the axial direction acts on the lock shaft rod, which may easily cause damage.

[0009] The present invention has been made in view of the above circumstances, and an object of the present invention is to provide a door opening and closing device capable of suppressing damage and the like.

[0010] Means used to solve problems

[0011] In order to achieve the above-mentioned purpose, the door opening and closing device of the present invention is characterized in that it comprises: an upper rail for guiding a first guided member and a second guided member connected to the upper end portions on both sides of the sliding door panel in the door width direction, so that the sliding door panel is suspended and maintained to slide freely in the door width direction; a driving mechanism connected to the above-mentioned first guided member to slide the first guided member in the door width direction; and an electronic lock that suppresses the movement of the above-mentioned sliding door panel in the locked position toward the open side in a releasable manner. The above-mentioned electronic lock comprises a latch portion, which is a long strip extending from a base end portion in the approximate door width direction, and a front end portion engaged with the latch receiving portion of the guided member of at least one of the above-mentioned first guided member and the above-mentioned second guided member is moved up and down to a release position on the upper side and a locking position on the lower side, and the above-mentioned base end portion is maintained to be freely rotatable around an axis along the door thickness direction.

[0012] Effects of the Invention

[0013] The door opening and closing device according to the present invention can be prevented from being damaged by being configured as described above. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a partially cutaway schematic perspective view schematically showing an example of a door opening and closing device according to an embodiment of the present invention.

[0015] Figure 2 (a) and (b) are partially sectional schematic front views with part of the door opening and closing device omitted.

[0016] Figure 3 It is a partially cutaway schematic side sectional view of the door opening and closing device.

[0017] Figure 4 (a) and (b) are partially omitted schematic exploded perspective views of the door opening and closing device.

[0018] Figure 5 (a) and (b) are partially sectional schematic front views with part of the door opening and closing device omitted. DETAILED DESCRIPTION

[0019] Hereinafter, embodiments of the present invention will be described with reference to the accompanying drawings.

[0020] In addition, in some drawings, some of the detailed reference numerals assigned to other drawings are omitted.

[0021] In the following embodiment, directions such as the up and down directions will be described based on a state in which the door opening and closing device according to the present embodiment has been installed.

[0022] Figures 1 to 5It is a diagram schematically showing an example of the door opening and closing device according to the present embodiment.

[0023] The door opening and closing device 1 of this embodiment is as follows Figure 1 and Figure 2 As shown in (a) and (b), the upper rail 10 is provided, which guides the guided parts 15, 15 connected to the upper end parts 9a on both sides of the sliding door panel 9 in the door width direction, so that the sliding door panel 9 is suspended and maintained so as to slide freely in the door width direction. In addition, the door opening and closing device 1 is provided with a driving mechanism 20, which is connected to the first guided part 15A on one side of the guided parts 15, 15, so that the first guided part 15A slides in the door width direction. If such a structure is made, the first guided part 15A can be moved in the door width direction by simply driving the driving mechanism 20, so as to open and close the sliding door panel 9 (open and lock). That is, the sliding door panel 9 can function as an automatic door. In addition, the door opening and closing device 1 is provided with an electronic lock 30 that can releasably prevent the sliding door panel 9 in the locked position from moving toward the open side. If such a structure is made, if the electronic lock 30 is locked, the sliding door panel 9 can be suppressed from moving toward the opening side, and if the electronic lock 30 is unlocked, the sliding door panel 9 can be allowed to move toward the opening side.

[0024] In addition, if Figure 2 As shown in (a), the door opening and closing device 1 includes an upper frame 3 as a fixed object to which an upper rail 10 is fixed. The door opening and closing device 1 can also be a sliding door device composed of a door frame 2 including the upper frame 3 and a sliding door panel 9. In addition, the door opening and closing device 1 can be installed in various places, including ordinary residences such as single-family houses and group houses, public facilities such as hotels, medical facilities, and welfare facilities, commercial facilities such as offices, and various stores.

[0025] In the present embodiment, represented that a piece of sliding door panel 9 is built as the example of single leaf pulling shape. In the legend, represented that sliding door panel 9 is built as the example of sleeve wall storage shape, but also can be built with the suitable storage form of door box storage or outer clothing storage etc.

[0026] The door frame 2 is installed at an opening in the wall of a building. The door frame 2 includes: an upper frame 3 (upper rail 10) that defines the upper side of an entrance 8 opened and closed by a sliding door panel 9; a door head side longitudinal frame 5 that is disposed on the door head side of the sliding door panel 9; a door tail side longitudinal frame 6 that is disposed on the door tail side of the sliding door panel 9; and a middle stile (middle longitudinal frame) 7. The middle stile 7 is disposed along the end of the entrance 8 side of the sleeve wall (not shown) and defines both sides of the entrance 8 in the width direction of the opening together with the door head side longitudinal frame 5. In addition, the upper frame 3 can be attached to or embedded in the ceiling, or can be installed along the lower end of the vertical wall. In addition, the lower side of the entrance 8 can also be defined by the floor or an appropriate lower frame.

[0027] The upper frame 3 is long in the door width direction. The length of the upper frame 3 is about twice the width of the sliding door panel 9. Figure 3 As shown, the upper frame 3 is configured in a manner such that the thickness direction is the vertical direction. In addition, the depth dimension (dimension along the door thickness direction) of the sleeve wall side portion of the upper frame 3 configured on the sleeve wall side is set to be smaller than the depth dimension of the entrance and exit 8 side portion configured on the entrance and exit 8 side.

[0028] Furthermore, the upper frame 3 is provided with a receiving groove 4 that receives the upper portion of the drive mechanism 20, described later. This structure facilitates the alignment of the upper rail 10, on which the drive mechanism 20 is mounted. The receiving groove 4 opens downward and extends across the entire length of the upper frame 3. Alternatively, the upper frame 3 may be secured to a suitable upper frame base, such as a lintel, using fasteners such as screws or nails.

[0029] The door's leading vertical frame 5, trailing vertical frame 6, and center stile 7 are elongated in the door's height (vertical direction). Their lengths are roughly the same as the door's height (the sum of the upper rail 10 and upper frame 3, including the drive mechanism 20) and the vertical dimensions of the sliding door panel 9. Furthermore, these leading vertical frames 5, trailing vertical frames 6, and center stile 7 are arranged so that their thickness corresponds to the door's width. The depth of the trailing vertical frame 6 and center stile 7 is smaller than that of the leading vertical frame 5.

[0030] Alternatively, the door head side vertical frame 5 and the door tail side vertical frame 6 may be fixed to an appropriate vertical frame base, such as a column, via fasteners. Furthermore, the door head side vertical frame 5 and the door tail side vertical frame 6 may be fixed to the vertical frame base and the upper frame base while being assembled into a three-square frame. The illustration shows an example in which the facing depth surfaces of the upper ends of the door head side vertical frame 5 and the door tail side vertical frame 6 are butted against the respective end surfaces in the longitudinal direction of the upper frame 3, and the door head side vertical frame 5 and the door tail side vertical frame 6 are assembled with the upper frame 3 into a vertical frame-through configuration.

[0031] In addition, a structure can also be made in which door insertion grooves are set on the facing depth surfaces of these door head side longitudinal frames 5 and door tail side longitudinal frames 6 to accommodate the end portions (door head side end portions and door tail side end portions) of the sliding door panel 9 in the door width direction.

[0032] The stile 7 may have its upper end fixed to the upper frame 3 and its lower end fixed to the floor. Alternatively, a gap-blocking member such as mohair may be provided at the end of the stile 7 on the sliding door panel 9 side, frictionally contacting one surface of the sliding door panel 9 in the thickness direction. Furthermore, the door frame 2 is not limited to the structure described above and may have various other structures.

[0033] The sliding door panel 9 is formed into a generally rectangular flat plate that is elongated in one direction (the vertical direction). The door height (length) of the sliding door panel 9 can be any dimension corresponding to the opening height of the entrance 8 opened and closed by the sliding door panel 9, and can also be a standard door height, for example, approximately 1800mm to 2100mm. Alternatively, the sliding door panel 9 can be configured as a high door with a door height approximately the same as the ceiling height, for example, approximately 2300mm to 3000mm. Furthermore, the door thickness of the sliding door panel 9 can also be approximately 20mm to 40mm. Furthermore, the door width of the sliding door panel 9 can also be approximately 500mm to 1800mm, for example. When installed indoors, the sliding door panel 9 can be a relatively lightweight panel, such as a so-called bright panel, which is a structure in which a surface member is attached to a panel core member comprising a frame-shaped core member formed of a wood or metal material, such as is commonly used for indoor sliding doors. The sliding door panel 9 is not limited to such a bright panel, and may be configured appropriately depending on the installation location and the like.

[0034] The first guided member 15A constituting the guided member 15 is connected to the upper end 9a of the sliding door panel 9 on the door head side, which is one side in the door width direction, and the second guided member 15B constituting the guided member 15 is connected to the upper end 9a on the door tail side, which is the other side in the door width direction. These first guided member 15A and second guided member 15B have substantially the same structure. Figure 3As shown, the first guided member 15A and the second guided member 15B are provided with a mounted portion 16 to be mounted to the mounting portion of the sliding door panel 9. The mounting portion of the sliding door panel 9 is provided on each of the upper end portions 9a on both sides of the sliding door panel 9 in the door width direction, and is open toward the outer side and the upper side in the door width direction, and is formed into a concave cup portion for the mounted portion 16 to be inserted.

[0035] In addition, these first guided parts 15A and second guided parts 15B include: a support shaft 16a, which is provided in a manner protruding from the mounted portion 16 toward the upper side; and a guide body 17, which is fixed to the upper end portion of the support shaft 16a. The guide body 17 is provided with a rotating body 18 that travels on the guide piece portion 13a of the upper rail 10 described later. In the present embodiment, the rotating body 18 is provided so as to be rotatable around an axis along the door thickness direction. In addition, a structure is formed in which the rotating bodies 18, 18 are provided on both sides of the guide body 17 in the door thickness direction and are separated from each other. In addition, a structure is formed in which the rotating bodies 18, 18 on both sides in the door thickness direction are provided at intervals in a plurality of places (two places in the example) in the door width direction of the guide body 17 (refer to Figure 5 ).

[0036] Furthermore, the first guided member 15A, which is one of the two sides in the door width direction, is connected to a drive mechanism 20, which will be described in detail later. Specifically, the first guided member 15A slides in the door width direction via the drive mechanism 20, causing the second guided member 15B on the other side, which is not connected to the drive mechanism 20, to slide in the door width direction, so to speak, driven by the first guided member 15A.

[0037] Note that the first guided member 15A and the second guided member 15B are not limited to the above-described configurations, and may be configured appropriately according to the upper rail 10 described later.

[0038] Furthermore, 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 .

[0039] like Figure 2 As shown in (b), the upper rail 10 is set to be approximately twice the length of the sliding door panel 9. A structure can be made in which the drive mechanism 20 is fixed to the first half of one side of the long side direction of the upper rail 10. The length of the upper rail 10 is set to be smaller than twice the width of the door. The length of the upper rail 10 can be set to an appropriate size based on the overlap size of the door tail end of the sliding door panel 9 in the locked state and the middle stile 7 (sleeve wall) and the size of the remaining part of the sliding door panel 9 in the fully open state.

[0040] In addition, if Figure 3As shown, the upper rail 10 has a downwardly opening guide groove 11 for receiving the guided members 15 (first guided member 15A and second guided member 15B). The guide groove 11 extends across the entire length of the upper rail 10. The guide body 17 of the guided member 15 is inserted into the guide groove 11 for guidance.

[0041] The upper rail 10 includes: a groove bottom plate-like portion 12, which divides the groove bottom of the guide groove 11; side plate-like portions 13, 13 on both sides, which divide the two sides of the groove width direction of the guide groove 11; and guide piece portions 13a, 13a, which extend from the lower end portions of these side plate-like portions 13, 13 in directions facing each other.

[0042] At the leading ends of the guide pieces 13a, 13a on both sides, protruding strips projecting upward are provided 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 18, 18 of the guided member 15 engage with the protruding strips of the guide pieces 13a, 13a, and the rotating bodies 18, 18 run along the protruding strips of the guide pieces 13a, 13a.

[0043] Furthermore, the upper rail 10 is provided with a fixing member 14 for securing the upper rail 10 relative to the upper frame 3. In the illustrated example, a plurality of fixing members 14 are provided on the groove bottom plate-shaped portion 12 of the upper rail 10, spaced apart in the longitudinal direction. Furthermore, these fixing members 14 are arranged in a vacant space where components of the drive mechanism 20 and the electronic lock 30 are not provided on the upper rail 10. Alternatively, these fixing members 14 may be hooked and retained by hooking portions provided on the upper frame 3. Alternatively, these fixing members 14 may be secured to the upper frame 3 using fasteners such as screws.

[0044] like Figure 1 As shown, the drive mechanism 20 is fixed to the above-mentioned upper rail 10. If such a structure is made, the upper rail 10 can be fixed relative to a fixed object such as the upper frame 3 of the door frame 2 with the sliding door panel 9 built therein while the drive mechanism 20 and the upper rail 10 are integrated.

[0045] In this embodiment, the drive mechanism 20 includes a first driven rotating wheel 22 constituting a first rotating wheel and a second driven rotating wheel 24 constituting a second rotating wheel, and the first driven rotating wheel 22 and the second driven rotating wheel 24 are provided at positions separated in the door width direction (see FIG. Figure 2). Furthermore, the drive mechanism 20 includes a rope-shaped transmission body 28 wound around each of the first driven rotating wheel 22 and the second driven rotating wheel 24 and connected to the first guided member 15A; and a drive unit 25 for transmitting drive to the rope-shaped transmission body 28. With this structure, when the drive unit 25 is driven, the first guided member 15A connected to the rope-shaped transmission body 28 can be moved in the door width direction, thereby opening and closing the sliding door panel 9.

[0046] The drive unit 25 includes a driving rotary wheel 26 positioned between the first and second driven rotary wheels 22 and 24 and above the guide groove 11 of the upper rail 10, transmitting drive to the rope-shaped transmission element 28; and a motor 27 for rotating the driving rotary wheel 26. With this configuration, rotation of the driving rotary wheel 26 by the motor 27 moves the first guided member 15A connected to the rope-shaped transmission element 28 in the door width direction, thereby opening and closing the sliding door panel 9. Furthermore, compared to a configuration in which the driving rotary wheel 26 and motor 27 are positioned at one end in the door width direction, the dimensions along the door width direction can be made more compact. Furthermore, compared to a configuration in which the driving rotary wheel 26 is positioned on one side of the upper rail 10 in the door thickness direction, the dimensions along the door thickness direction can be made more compact. This configuration also allows for installation in a door frame 2 similar to that of a typical sliding door system installed in a residential building. In addition, for example, it can also be set for an already installed door frame 2, which is applicable not only to new construction but also to reconstruction or modification. As a result, it can be appropriately used as a door opening and closing device 1 for opening and closing the following sliding door panel 9, which is set in general residences such as existing single-family houses and group houses, public facilities such as hotel facilities, medical facilities, welfare facilities, commercial facilities such as offices, various shops, etc. In addition, since the door opening and closing device 1 is compact, while enabling the sliding door panel 9 to function as an automatic door, it can also reduce the sense of incongruity (noise) in appearance even if it is set as an indoor sliding door, and can be appropriately used as an indoor use.

[0047] The first driven wheel shaft and the second driven wheel shaft, which are the respective shafts of the first driven rotating wheel 22 and the second driven rotating wheel 24, are parallel to each other. In addition, these first driven wheel shaft and the second driven wheel shaft are arranged so as to intersect with the axial direction of the drive wheel shaft of the driving rotating wheel 26, which is arranged so that the axial direction is the door height direction.

[0048] A rope-shaped transmission body 28 is wound around the first driven rotating wheel 22 and the second driven rotating wheel 24 in a parallel hanger shape. The first driven wheel shaft and the second driven wheel shaft of the first driven rotating wheel 22 and the second driven rotating wheel 24 are arranged in an inclined shape so that the lower displacement portion and the upper displacement portion of the rope-shaped transmission body 28 that are displaced to opposite sides in the door width direction are located at different positions in the door thickness direction of the upper rail 10 (see FIG. Figure 3 The first driven wheel axle and the second driven wheel axle of the first driven rotating wheel 22 and the second driven rotating wheel 24 are arranged in an inclined shape so that the lower displacement portion is located approximately in the center of the door thickness direction of the upper rail 10, and the upper displacement portion is located at a position biased to one side in the door thickness direction of the upper rail 10.

[0049] These first driven rotating wheels 22 and second driven rotating wheels 24 are of the same size and shape. In addition, these first driven rotating wheels 22 and second driven rotating wheels 24 are in the shape of thin circular plates with relatively small dimensions along the axial direction of the first driven wheel shaft and the second driven wheel shaft. In addition, these first driven rotating wheels 22 and second driven rotating wheels 24 are made into pulleys with annular grooves provided on their respective outer peripheral surfaces for engaging with the rope-shaped transmission body 28 in the form of a rope-shaped component. In addition, these first driven rotating wheels 22 and second driven rotating wheels 24 are arranged in a manner that is in the same position as each other when viewed in the door width direction. The first driven wheel shaft and the second driven wheel shaft of these first driven rotating wheels 22 and second driven rotating wheels 24 are arranged in a manner that is orthogonal to the long side direction of the upper rail 10, and are arranged in a manner that is inclined relative to the horizontal plane (the upper surface of the groove bottom plate-shaped portion 12).

[0050] Furthermore, the first driven rotating wheel 22 and the second driven rotating wheel 24 are fixed to the upper rail 10 by fixing members 21 and 23. Alternatively, at least one of the first driven rotating wheel 22 and the second driven rotating wheel 24 may be retained on one or both of the fixing members 21 and 23 in a manner that allows for position adjustment in the door width direction.

[0051] The first driven rotating wheel 22 and the second driven rotating wheel 24 and the fixing members 21 and 23 for fixing them to the upper rail 10 are not limited to the above-described configurations, and various other configurations are also possible.

[0052] In addition, if Figure 3As shown, the guide bodies 17, 17 of the first guided member 15A and the second guided member 15B are provided with recesses that are open upward and on both sides in the door width direction. These recesses receive the lower end portions of the first driven rotating wheel 22 and the second driven rotating wheel 24, as viewed in the door width direction. Furthermore, the guide body 17 of the first guided member 15A is provided with a connecting portion 17a that connects to the lower displacement portion of the rope-like transmission body 28. This connecting portion 17a is positioned within the recess of the guide body 17.

[0053] The rope-like transmission element 28 is positioned so that its upper displacement portion, which displaces along the upper surface of the bottom circumference of the annular grooves of the first and second driven rotating wheels 22 and 24, is located in the upper space of the guide groove 11, biased toward the door thickness. Furthermore, its lower displacement portion, which displaces along the lower surface of the bottom circumference of the annular grooves of the first and second driven rotating wheels 22 and 24, is located in the center of the lower space within the guide groove 11 in the groove width direction. The rope-like transmission element 28 may be formed by fixing the connecting portion 17a of the first guided member 15A to a portion of the annular shape, or it may be formed into a generally annular shape with both longitudinal ends connected to the connecting portion 17a on either side of the door width. The rope-like transmission element 28 may be of any structure that is not easily stretched, such as a metal wire, a twisted rope made by twisting suitable fibers together, or a wire rope made by combining fibers.

[0054] The driving wheel 26 is formed into a thin, circular plate with a relatively small dimension along the axis of the driving wheel shaft. Furthermore, the driving wheel 26 is formed into a pulley with an annular groove on its outer circumference for engaging the rope-like transmission element 28. The upper displacement portion of the rope-like transmission element 28 is wound approximately once around the driving wheel 26.

[0055] The driving rotating wheel 26 is provided with a gear (rotating wheel side gear) that transmits rotation to a gear (motor side gear) provided on the motor 27 that rotates the driving rotating wheel 26. In addition, the motor 27 can be configured so that the axial direction of the output shaft is in the door width direction and is arranged on one side of the driving rotating wheel 26 in the door width direction, and the driving wheel shaft of the driving rotating wheel 26 and the output shaft of the motor 27 are arranged in a mutually intersecting manner. In addition, as the rotating wheel side gear and the motor side gear, an appropriate structure can be made according to the configuration form of the driving rotating wheel 26 and the motor 27. In addition, as these rotating wheel side gears and motor side gears, they are not limited to a structure that directly meshes, and can also be a structure that transmits rotation via an appropriate intermediate gear or the like.

[0056] Furthermore, the driving rotary wheels 26 and the motor 27 may also be fixed to the upper rail 10 by appropriate fixing members.

[0057] The motor 27 may be a servo motor or the like that can rotate forward and reverse and whose rotation speed can be controlled.

[0058] Furthermore, in the above-described example, the driving wheel shaft for driving the rotating wheel 26 is provided in the door height direction, but it may be provided in the door thickness direction.

[0059] In addition, in this embodiment, if Figure 1 As shown, a structure is formed in which a control block 29 for controlling the rotation of the motor 27 is arranged on one side of the motor 27 in the door width direction. The control block 29 is provided with a power supply unit for supplying driving power to the motor 27, and a control circuit connected to the motor 27 via appropriate signal lines, etc. The control block 29 controls the motor 27 so that it rotates forward or backward, moving the sliding door panel 9 to the fully open position or the locked position. In the example, an example is shown in which the control block 29 is made into a roughly square column shape with a long dimension in the door width direction.

[0060] like Figure 5 As shown, the electronic lock 30 includes an elongated latch portion 40 extending from a base end 41 generally along the door width. The base end 41 is rotatably retained about an axis (lock shaft) 42 extending along the door thickness. The latch portion 40 is configured such that its front end 43, which engages with the latch receiving portion 19 of the first guided component 15A, which serves as a guide member for at least one of the first guided component 15A and the second guided component 15B, moves vertically between an upper unlocked position and a lower locked position. This configuration can minimize damage to the drive mechanism 20, compared to, for example, a configuration that locks by suppressing the rotation of pulleys or other components of the drive mechanism 20. Furthermore, compared to, for example, a configuration that includes a lock shaft that moves vertically in the axial direction, this configuration can minimize damage to the latch portion 40. Specifically, the latch portion 40 can withstand the load acting on the latch portion 40 in the substantially longitudinal direction when the sliding door panel 9 is manually moved toward the open side.

[0061] In this embodiment, the electronic lock 30 is fixed to the upper rail 10 so that when the sliding door panel 9 is in the locked position, it is located above the center side of the first guided component 15A, which is one of the guided components, in the door width direction. If this structure is made, the size along the door width direction can be made more compact compared to a structure that requires space to be allocated above the outer side of the first guided component 15A, which is one of the guided components of the sliding door panel 9 in the locked position. In addition, since the electronic lock 30 is fixed and integrated into the upper rail 10, the construction efficiency can be improved compared to a structure that requires an electronic lock to be provided separately from the upper rail 10. In addition, the electronic lock 30 is located above the entrance and exit 8, which can improve the maintainability and operability when manually unlocking the door compared to a structure that is provided on the sleeve wall side or the plug door side (door pocket side).

[0062] Furthermore, the electronic lock 30 is disposed between the first driven rotating wheel 22 and the second driven rotating wheel 24. With this configuration, the electronic lock 30 can be disposed in the empty space between the first driven rotating wheel 22 and the second driven rotating wheel 24 constituting the drive mechanism 20, thereby making the upper rail 10 more compact in its vertical dimension.

[0063] Furthermore, the electronic lock 30 is positioned so that, when the sliding door panel 9 is in the locked position, it is located above the center of the first guided member 15A in the door width direction. This prevents the first guided member 15A, which is one of the guided members, from moving toward the open side on the door head side. For example, if the electronic lock 30 is positioned adjacent to the second guided member 15B of the sliding door panel 9 in the locked position, the position of the electronic lock 30 may need to be changed if the door width of the sliding door panel 9 varies. However, this is not necessary. In other words, even if the door width of the sliding door panel 9 varies, the electronic lock 30 can be adjusted without changing its position relative to the upper rail 10.

[0064] Furthermore, the electronic lock 30 is configured so that, when the sliding door panel 9 is in the locked position, it is located forward of the first guided component 15A, which is one of the guided components, as it moves in the opening direction. This configuration simplifies the structure of the latch portion 40 and the latch receiving portion 19, compared to a configuration in which the electronic lock 30 is located forward of the first guided component 15A, which is one of the guided components, as it moves in the locking direction of the sliding door panel 9 in the locked position. In other words, there is no need to provide a latch receiving portion on the latch receiving portion 19 or a hook-shaped latching portion on the latch portion 40 to latch the latched portion. Instead, the latch receiving portion 19 can serve as an abutment portion for the front end 43 of the latch portion 40 to abut.

[0065] That is, in this embodiment, the electronic lock 30 is configured so that when the sliding door panel 9 is in the locked position, the electronic lock 30 is located on the front side of the first guided component 15A on the door head side moving toward the opening direction as the center side in the door width direction.

[0066] Specifically, the electronic lock 30 includes a first housing portion 31 and a second housing portion 32 that are divided in the direction of the door thickness. The first and second housing portions 31, 32 constitute a lock housing that holds a latch portion 40 rotatably about a latch axis 42. The lock housing is fixed to the upper rail 10. Furthermore, the electronic lock 30 includes a motor 33 that constitutes a latch drive portion that moves the front end portion 43 of the latch portion 40 up and down, and locking and unlocking detection portions 36 and 37 that detect the locked and unlocked states of the electronic lock 30.

[0067] The first housing portion 31 and the second housing portion 32 are configured to open downward in the assembled state. The illustration shows an example in which the first housing portion 31 on one side in the door thickness direction is open downward and toward the other side in the door thickness direction, and the second housing portion 32 on the other side in the door thickness direction is in a plate-like shape arranged so as to cover the opening of the first housing portion 31 on the other side in the door thickness direction.

[0068] The first housing portion 31 and the second housing portion 32 are fixed to the upper rail 10 by means of fasteners such as screws. In the example shown, an opening for receiving the electronic lock 30 is provided in the groove bottom plate portion 12 of the upper rail 10 and the side plate portion 13 on the one side in the door thickness direction, and an example is shown in which the fixed portion provided in the first housing portion 31 is fixed to the side plate portion 13 on the one side in the door thickness direction (see also FIG. Figure 1 ).

[0069] The latch portion 40 is configured such that the base end portion 41 on one side in the longitudinal direction is located closer to the center side (door tail side) of the sliding door panel 9 in the door width direction of the locking position than the front end portion 43 on the other side in the longitudinal direction. Figure 5 As shown in (a), the latch portion 40 is configured to be inclined so as to descend toward the front end side when in the locked position. Figure 5 As shown in (b), the latch portion 40 is configured such that the base end portion 41 and the front end portion 43 are arranged at substantially the same height when in the release position, that is, the longitudinal direction thereof is substantially in the door width direction.

[0070] The latch shaft 42 at the base end 41 of the latch portion 40 is arranged with its axial direction oriented in the door thickness direction. The latch shaft 42 may be fixedly mounted on the latch portion 40 and rotatably held by bearings mounted on the first and second housing portions 31 and 32. Alternatively, a configuration may be employed in which bearings are mounted on the latch portion 40 to rotatably hold the latch shaft 42, which is fixedly mounted on the first and second housing portions 31 and 32.

[0071] The front end portion 43 of the latch portion 40 is connected to a connecting member 38, which is connected to a rotating body 35 rotated by a motor 33. As the rotating body 35 rotates, the front end portion 43 moves up and down. The rotating body 35 is arranged to be located above the front end side of the latch portion 40. The rotating body 35 is rotatably held on the first housing portion 31 and the second housing portion 32 around a rotating shaft 35a arranged with its axial direction corresponding to the door thickness direction. In the example shown in the figure, the rotating body 35 is a worm gear meshing with a worm 34 provided on the output shaft of the motor 33. In addition, the form in which the rotating body 35 is rotated by the motor 33 is not limited to the form formed by such a worm pair, and may also be a form in which other gears are provided, or the rotating body 35 is directly provided on the output shaft of the motor 33.

[0072] The connecting member 38 is long and narrow in the vertical direction. The upper end portion of the connecting member 38, which is one end portion in the longitudinal direction, is rotatably connected to one radial side of the rotating shaft 35a at an eccentric position relative to the rotating shaft 35a of the rotating body 35, and the lower end portion, which is the other end portion in the longitudinal direction, is rotatably connected to the front end portion 43 of the latch portion 40. The connecting member 38 is provided with an insertion hole 38a for inserting the upper end connecting shaft 35b along the door thickness direction, and the upper end connecting shaft 35b is rotatably inserted and retained in the shaft insertion hole provided in the rotating body 35. In addition, a lower end connecting shaft 38b is provided at the lower end portion of the connecting member 38, and the lower end connecting shaft 38b is rotatably inserted and retained in the insertion hole along the door thickness direction provided in the front end portion 43 of the latch portion 40 (see also). Figure 4 (b)).

[0073] When the motor 33 is driven, the rotator 35 rotates around the rotation axis 35a via the worm 34, and the upper end connecting shaft 35b rotates around the rotation axis 35a. As a result, the upper end side swings in the direction of the door width, and the connecting member 38 moves up and down. As a result, the front end 43 of the latch part 40 moves up and down. Figure 5As shown in (a), if the upper end connecting shaft 35b is positioned below the rotating shaft 35a of the rotating body 35, the connecting member 38 and the front end portion 43 of the latch portion 40 are at the lower limit position, and the latch portion 40 is at the locked position. In this state, the front end portion 43 of the latch portion 40 is arranged to face the latch receiving portion 19 of the first guided member 15A of the sliding door panel 9 in the locked position, and the movement of the first guided member 15A toward the open side is suppressed. In addition, as Figure 5 As shown in (b), when the upper connecting shaft 35b is positioned above the rotating shaft 35a of the rotating body 35, the connecting member 38 and the front end 43 of the latch 40 are at their upper limit positions, and the latch 40 is in the released position. In this position, the latch 40 is positioned so as not to interfere with the first guided member 15A of the sliding door panel 9 in the locked position, allowing the first guided member 15A to move toward the open position. The mechanism for vertically moving the front end 43 of the latch 40 is not limited to the illustrated configuration and may also employ various other configurations.

[0074] like Figure 3 As shown, the latch receiving portion 19 with which the front end portion 43 of the latch portion 40 engages is positioned between the rotating bodies 18, 18 on both sides in the door thickness direction, as viewed in the door width direction. This configuration can prevent damage to the rotating body 18, etc., compared to a configuration in which the rotating body 18 serves as the latch receiving portion 19. Furthermore, compared to a configuration in which the latch receiving portion 19 is provided on the other side of the first guided member 15A in the door thickness direction, where the rotating body 18 is provided only on one side in the door thickness direction, the front end portion 43 of the latch portion 40 can be stably engaged.

[0075] In addition, in this embodiment, if Figure 5 As shown in (a), the latch receiving portion 19 is an inclined surface perpendicular to the longitudinal direction of the latch portion 40 in the locked position. This structure effectively supports the load acting on the latch portion 40 in the locked position along the longitudinal direction of the latch portion 40 when the sliding door panel 9 is manually moved toward the open side. Furthermore, interference between the front end 43 of the latch portion 40 and the latch receiving portion 19 when the latch portion 40 is moved to the released position can be suppressed.

[0076] The latch receiving portion 19 is provided at the door-rear end of the guide body 17 of the first guided member 15A. The latch receiving portion 19 may be integrally provided with the guide body 17 or fixed to a separate component. Furthermore, the latch receiving portion 19 is provided so as not to interfere with the rope-shaped transmission member 28 connected to the first guided member 15A.

[0077] The surface of the latch receiving portion 19 facing the door tail side, which is in contact with or close to the front end portion 43 of the latch portion 40, is in the shape of an inclined surface facing obliquely upward in a manner that decreases as it faces downward. The front end surface of the front end portion 43 of the latch portion 40 is in the shape of an inclined surface facing obliquely downward and is roughly parallel to the latch receiving portion 19, so as to be arranged opposite to the latch receiving portion 19 in the locked position. The example shown in the figure shows an example in which the front end surface of the front end portion 43 is made into an arc shape when viewed in the door thickness direction. The front end portion 43 of the latch portion 40 only needs to be made into an appropriate shape so that it can be arranged opposite to the latch receiving portion 19 of the first guided component 15A in the locked position and can suppress the first guided component 15A from moving toward the open side.

[0078] Furthermore, the inclination angle of the latch receiving portion 19 is set to an appropriate angle corresponding to the inclination angle of the latch portion 40 so as to be perpendicular to the longitudinal direction of the latch portion 40 in the locked position.

[0079] The inclination angle of the latch portion 40 in the locked position can be set to an appropriate angle to prevent interference with the latch receiving portion 19 in the released position and to reduce the load on the latch portion 40 in the locked position. The inclination angle of the latch portion 40 in the locked position can be approximately 5 to 30 degrees relative to the horizontal plane, with the illustrated example showing an angle of approximately 20 degrees. In other words, the latch portion 40, which extends generally in the door width direction, can also be tilted at approximately 30 degrees relative to the horizontal plane. Furthermore, the illustrated example shows an example in which the inclination angle of the latch receiving portion 19 relative to the horizontal plane is approximately 70 degrees, corresponding to the inclination angle of the latch portion 40 in the locked position. Furthermore, the longitudinal direction of the latch portion 40 in the locked position is perpendicular to the latch receiving portion 19. In addition to a 90-degree angle, the angle formed by the longitudinal direction of the latch portion 40 in the locked position, as viewed in the door thickness direction, can also be approximately 85 to 95 degrees.

[0080] Furthermore, in this embodiment, a structure is provided in which the latch portion 40 in the locked position can be manually moved to the release side. With this structure, even in situations where the motor 33 is not operating due to a power outage or malfunction, the latch portion 40 in the locked position can be manually moved to the release position. Furthermore, for example, when locking the sliding door panel 9 located on the open side, even when the latch portion 40 is in the locked position, the guide body 17 of the first guided member 15A can push the latch portion 40 upward and move it to the release side, thereby locking the sliding door panel 9.

[0081] The illustration shows an example of a structure in which the insertion hole 38a of the connecting member 38 is formed into a long hole shape that is long in the longitudinal direction (vertical direction) of the connecting member 38, allowing the front end 43 of the latch portion 40 to move upward when in the locked position. In other words, the connecting member 38 and the front end 43 of the latch portion 40 are configured to be movable upward along the insertion hole 38a relative to the upper end connecting shaft 35b of the rotating body 35 in the locked position.

[0082] In addition, an example is shown in which an operation recess 44 as a manual operation portion is provided at the front end portion 43 of the latch portion 40. The operation recess 44 may be provided by penetrating the front end portion 43 of the latch portion 40 in the door thickness direction. In addition, the operation recess 44 may be a structure in which a tool such as a screwdriver is inserted to operate. Figure 1 As shown, a notch is formed in the side plate-like portion 13 of the upper rail 10 to expose the front end 43 of the latch portion 40, thereby enabling operation of the operating recess 44. Alternatively, a structure may be configured in which the side plate-like portions 13, 13 on both sides of the upper rail 10 in the door thickness direction are provided with notches to expose the front end 43 of the latch portion 40, thereby enabling manual release of the latch portion 40 from both sides in the door thickness direction. Furthermore, the manual operating portion is not limited to the operating recess 44 shown in the figure, and various other structures are also possible. Furthermore, a structure may also be configured in which a suitable retaining mechanism is provided to retain the latch portion 40 in the released position through manual operation.

[0083] Furthermore, in this embodiment, a biasing member 39 is provided to bias the latch portion 40 toward the locked position. This configuration allows the latch portion 40, which has been manually set to the released position, to be returned to the locked position. In the illustrated example, the biasing member 39 is configured as a helical coil spring (torsion spring) with a latch shaft 42 inserted through its coil portion. One arm end 39a of the biasing member 39 abuts against the restricting wall portion 31a provided on the first housing portion 31, while the other arm end 39b of the biasing member 39 abuts against the upper side of the latch portion 40. With this configuration, the biasing member 39 biases the front end 43 of the latch portion 40 downward. The biasing member 39 is not limited to a helical coil spring; it may also be another spring member, such as a leaf spring, a compression coil spring, or an extension coil spring. Furthermore, it is not limited to a spring member; it may also be a rubber member. In addition, the form in which the latch portion 40 can be manually operated toward the release side is not limited to the above-described form, and forms with various other structures are also possible.

[0084] In this embodiment, the locking and unlocking detection units 36 and 37 are configured to respectively provide a locking detection unit 36 for detecting a locked state and an unlocking detection unit 37 for detecting an unlocked state (see FIG. Figure 4 (b)). Furthermore, an example of a microswitch having buttons (actuator units) 36a and 37a is shown. These buttons (actuator units) 36a and 37a push down the lock detector 36 and the unlock detector 37 via push-down units 35c and 35d provided on the rotating body 35. The illustration also shows an example in which levers 36b and 37b are provided on the lock detector 36 and the unlock detector 37 for pushing down the buttons 36a and 37a.

[0085] These lock detectors 36 and unlock detectors 37 are spaced apart in the door thickness direction so that they are aligned with each other when viewed in the door thickness direction. The illustration shows an example where these lock detectors 36 and unlock detectors 37 are located on one side of the rotating body 35 in the door width direction, between the motor 33 and the latch 40. Alternatively, these lock detectors 36 and unlock detectors 37 may be held by being sandwiched between the first housing portion 31 and the second housing portion 32 on either side in the door thickness direction via appropriate fixing members.

[0086] The locking detection unit 36 is arranged to be located on one side of the door thickness direction of the rotating body 35. Figure 4 As shown in (a), on the door thickness direction side of the rotating body 35, the push-down portion 35c of the push-down button 36a is provided via the lever 36b of the lock detection unit 36 so as to protrude toward the door thickness direction side. Figure 5 As shown in (a), the push-down portion 35c is provided so as to push down the button 36a of the lock detection portion 36 when the latch portion 40 is in the locked position. In other words, the push-down portion 35c is provided in a position to push down the button 36a of the lock detection portion 36 when the upper end connecting shaft 35b of the rotating body 35 is located below the rotating shaft 35a.

[0087] The unlock detection unit 37 is provided on the other side of the door thickness direction of the rotating body 35. On the other side of the door thickness direction of the rotating body 35, a push-down portion 35d that pushes down the button 37a via the lever 37b of the unlock detection unit 37 is provided so as to protrude toward the other side of the door thickness direction. Figure 5 As shown in (b), the push-down portion 35d is provided to push down the button 37a of the unlocking detection portion 37 when the latch portion 40 is in the released position. In other words, the push-down portion 35d is provided in a position to push down the button 37a of the unlocking detection portion 37 when the upper end connecting shaft 35b of the rotating body 35 is located above the rotating shaft 35a.

[0088] The push-down portion 35d that pushes down the button 37a of the unlocking detection portion 37 and the push-down portion 35c that pushes down the button 36a of the locking detection portion 36 are arranged so as to be opposite to each other across the rotation axis 35a of the rotating body 35 when viewed in the door thickness direction. Furthermore, these push-down portions 35c and 35d are arranged so as to extend circumferentially with a gap therebetween. The circumferential dimensions of these push-down portions 35c and 35d only need to be of an appropriate size to enable detection of the locked and unlocked states. The illustration shows an example in which the circumferential dimension of the push-down portion 35d that pushes down the button 37a of the unlocking detection portion 37 is larger than the circumferential dimension of the push-down portion 35c that pushes down the button 36a of the locking detection portion 36.

[0089] Furthermore, the lock detection unit 36 and the unlock detection unit 37, as well as the motor 33, may be connected to the control block 29 described above via a signal line or the like. Furthermore, the electronic lock 30 may be configured to be locked and unlocked by a control signal (lock signal and unlock signal) from the control block 29 or a wireless signal (lock signal and unlock signal) from a remote location. Furthermore, the lock and unlock detection units 36 and 37 are not limited to micro switches as described above; they may also be configured to detect locking and unlocking by detecting the rotation angle of the rotating body 35, or various other configurations.

[0090] In addition, you can also Figure 3 As shown, the door opening and closing device 1 includes covers 45, 45, which are arranged on both sides of the upper rail 10 in the door thickness direction so as to cover the space between the upper frame 3 and the upper rail 10. These covers 45, 45 can be fixed to the upper rail 10 using an appropriate adhesive or fastener, or can be configured with a locking portion that locks with a locked portion provided on the upper rail 10. In addition, in the case of sleeve wall storage as described above, the sleeve wall-side cover 45 can also be configured to cover the area from the door head side vertical frame 5 to the center stile 7.

[0091] Furthermore, the door opening and closing device 1 may be configured such that a position detection unit for detecting the position of the sliding door panel 9 or a detection unit for detecting a detection object such as a human body is provided at an appropriate position.

[0092] In addition, in the above example, an example of an electronic lock 30 is shown in which the first guided component 15A on the door head side is suppressed from moving toward the open side, but a structure of an electronic lock 30 can also be made in which the second guided component 15B on the door tail side is suppressed from moving toward the open side instead of or in addition to it.

[0093] In the above example, the electronic lock 30 is provided on the front side of the guided member 15 (first guided member 15A) of the sliding door panel 9 in the locked position in the opening direction, but the present invention is not limited to this embodiment.

[0094] Furthermore, in the above example, the latch receiving portion 19 of the guided member 15 (first guided member 15A) is provided between the rotating bodies 18, 18 on both sides in the door thickness direction when viewed in the door width direction. However, the present invention is not limited to this configuration. For example, a configuration may be adopted in which the latch receiving portion 19 is provided on one of the rotating bodies 18, or provided on the guide body 17 of the guided member 15 (first guided member 15A) having the rotating body 18 provided on only one side in the door thickness direction.

[0095] Furthermore, in the above example, the driving rotating wheel 26, the first driven rotating wheel 22, and the second driven rotating wheel 24 of the drive mechanism 20 are configured as pulleys, but they may alternatively be configured as gears (sprockets), etc. Furthermore, the rope-like transmission element 28 is not limited to being a rope-like component coupled to the driving rotating wheel 26, the first driven rotating wheel 22, and the second driven rotating wheel 24; it may also be a belt, a ball chain, a chain, etc. Furthermore, in the above example, the driving rotating wheel 26 and the motor 27 are provided between the first driven rotating wheel 22 and the second driven rotating wheel 24, but this is not the only configuration. Alternatively, one of the first driven rotating wheel 22 and the second driven rotating wheel 24 may serve as the driving rotating wheel, constituting the first rotating wheel around which the rope-like transmission element 28 is wound, while the other may serve as the driven rotating wheel, constituting the second rotating wheel. In this case, a suitable motor may be provided to transmit rotation to the driving rotating wheel. Furthermore, the drive mechanism 20 is not limited to a structure including a rope-shaped transmission body 28 that is displaced by driving a rotating wheel. For example, a structure in which a connecting portion that is displaced in the door width direction by a screw rotated by a motor is connected to the first guided member 15A may be employed. The drive mechanism 20 may have various other configurations. The aforementioned devices, components, and structures of the door opening and closing device 1 of this embodiment are merely examples, and various other modifications are possible.

[0096] Description of labels

[0097] 1. Door opening and closing device; 10. Upper track; 15A. First guided component (the guided component on one side, the guided component on the door head side); 15B. Second guided component; 18. Rotating body; 19. Latch receiving portion; 20. Driving mechanism; 22. First driven rotating wheel (first rotating wheel); 24. Second driven rotating wheel (second rotating wheel); 25. Driving portion; 28. Rope-shaped transmission body; 30. Electronic lock; 40. Latch portion; 41. Base end portion; 42. Latch shaft; 43. Front end portion; 9. Sliding door panel; 9a. Upper end portion.

Claims

1. A door opening and closing device, characterized in that: have: The upper rail guides the first guided member and the second guided member connected to the upper end portions of the sliding door panel on both sides in the door width direction, thereby suspending and holding the sliding door panel so as to be slidable in the door width direction; a driving mechanism connected to the first guided member to slide the first guided member in the door width direction; as well as The electronic lock is configured to, when the sliding door panel is in the locked position, be located in front of the guide member of at least one of the first guided member and the second guided member in the direction of movement toward the opening direction, thereby releasably inhibiting the sliding door panel in the locked position from moving toward the opening side. The electronic lock includes a latch portion, which is a long strip extending from a base end portion in a substantially door width direction. The front end portion engaged with the latch receiving portion of the guided member is moved up and down to an upper release position and a lower locking position. The base end portion is held to rotate freely around an axis along the door thickness direction. The latch portion is configured to be inclined in a manner that descends toward the front end side in the locked position. The latch receiving portion of the one guided member has an inclined surface shape perpendicular to the longitudinal direction of the latch portion in the locked position.

2. The door opening and closing device according to claim 1, wherein: The electronic lock is fixed to the upper rail so that when the sliding door panel is in the locked position, the electronic lock is located above the center of the one guided member in the door width direction.

3. The door opening and closing device according to claim 1, wherein: The above-mentioned driving mechanism has: The first rotating wheel and the second rotating wheel are arranged to be spaced apart from each other in the door width direction; a rope-shaped transmission body, which is wound around the first rotating wheel and the second rotating wheel, and is connected to the first guided member; and The driving part transmits the driving force to the rope-shaped transmission body. The electronic lock is arranged to be located between the first rotating wheel and the second rotating wheel.

4. The door opening and closing device according to claim 2, wherein: The above-mentioned driving mechanism has: The first rotating wheel and the second rotating wheel are arranged to be spaced apart from each other in the door width direction; a rope-shaped transmission body, which is wound around the first rotating wheel and the second rotating wheel, and is connected to the first guided member; and The driving part transmits drive to the rope-shaped transmission body. The electronic lock is arranged to be located between the first rotating wheel and the second rotating wheel.

5. The door opening and closing device according to claim 1, wherein: The electronic lock is configured to be located above the center side of the door width direction of the guided component on the door head side when the sliding door panel is in the locked position, so as to be able to suppress the movement of the guided component on the door head side, which is the guided component on the one side, toward the open side.

6. The door opening and closing device according to claim 2, wherein: The electronic lock is configured to be located above the center side of the door width direction of the guided component on the door head side when the sliding door panel is in the locked position, so as to be able to suppress the movement of the guided component on the door head side, which is the guided component on the one side, toward the open side.

7. The door opening and closing device according to claim 3, wherein: The electronic lock is configured to be located above the center side of the door width direction of the guided component on the door head side when the sliding door panel is in the locked position, so as to be able to suppress the movement of the guided component on the door head side, which is the guided component on the one side, toward the open side.

8. The door opening and closing device according to claim 4, wherein: The electronic lock is configured to be located above the center side of the door width direction of the guided component on the door head side when the sliding door panel is in the locked position, so as to be able to suppress the movement of the guided component on the door head side, which is the guided component on the one side, toward the open side.

9. The door opening and closing device according to any one of claims 1 to 8, wherein: The above-mentioned first guided component and the above-mentioned second guided component have rotating bodies on both sides of the door thickness direction. The above-mentioned latch receiving portion of the above-mentioned one side of the guided component is arranged to be located between these rotating bodies on both sides of the door thickness direction when viewed in the door width direction. The above-mentioned rotating bodies can rotate freely around the axis along the door thickness direction and are arranged to be separated from each other in the door thickness direction.

Images