JPWO2017188084A1 - Door body braking device and sliding door device provided with the same - Google Patents

Abstract

  A door body braking device 30 that is installed in a door body 10 capable of self-propelling on the closing side by an automatic closing mechanism 23 and decelerates the door body moving a predetermined distance from an arbitrary opening position to the closing side, When the first rotating body 33 and the second rotating body 37 rotated by the rotation applying unit 19 provided along the traveling path of the door body and the door body moves to the open side, the first rotating body On the other hand, when the door moves to the closing side, the third rotating body 34 rotates idly by the one-way clutch mechanism 35, and when the door moves to the closing side, the second rotation occurs. While the door is rotated in conjunction with the body, when the door moves to the open side, the four-rotor 38 that idles by the one-way clutch mechanism 39, the third rotor, and the fourth rotor are rotated. The transmission unit 40a to be transmitted and the above-mentioned A non-transmission portion 40b for canceling transmission of rotation of the three-rotor and the fourth rotor, and when the door moves the predetermined distance from the open position, Rotation of the fourth rotating body and the driven member 40 configured to displace the non-transmitting portion from the transmission releasing position with the third rotating body to the transmission releasing position with the fourth rotating body by transmitting the rotation. And a braking mechanism 43 that applies a braking force to the displacement of the driven member that is displaced by being transmitted.

Description

  The present invention relates to a door brake device and a sliding door device including the door brake device.

2. Description of the Related Art Conventionally, there is known a sliding door device including a door that can be self-propelled on the closing side by an automatic closing mechanism. In such a sliding door device, since the door body is always urged to the closed side, when a long time is required for passage, such as when an elderly person, a wheelchair, or a bed passes, It was thought that it touched the door.
For example, the following Patent Document 1 includes a structure in which a support body attached to the upper part of a sliding door is fixed to a moving body that is movably provided on an inclined rail whose closing direction side is lowered, and the sliding door is guided along the inclined rail. A self-closing sliding door is disclosed. In addition, this self-closing sliding door has an eccentric cam partially formed with a circular arc portion that can be brought into frictional contact with the inclined rail and fixed to the rotating shaft of the unidirectional rotating damper, and immediately after the closing operation starts, The structure is such that braking works.

Japanese Patent No. 3327221

  However, the self-closing sliding door described in Patent Document 1 rolls while the arc portion of the eccentric cam contacts the inclined rail from one end portion. And if the contact part with an inclination rail becomes the other terminal part of a circular arc part, rolling of an eccentric cam will stop, and it is set as the structure which the other terminal part of an arc part slides on an inclination rail after that. . For this reason, it is conceivable that deterioration due to wear or the like of the eccentric cam is likely to occur, and malfunction due to this is likely to occur, and further improvement is desired.

  The present invention has been made in view of the above circumstances, and a door braking device capable of suppressing the occurrence of malfunctions while being able to decelerate a door that is self-propelled from an open position to the closing side, and It aims at providing the sliding door apparatus provided with this.

  In order to achieve the above object, a door brake device according to the present invention is installed in a door that can be self-propelled on the closing side by an automatic closing mechanism, and moves a predetermined distance from an arbitrary opening position to the closing side. A door body braking device for decelerating the door body, the first rotating body and the second rotating body being rotated by a rotation applying portion provided along a traveling track of the door body, and the door body being an open side A third rotating body that is rotated by a one-way clutch mechanism when the door is moved to the closed side, and the door is closed on the closed side. A fourth rotating body that rotates idly by a one-way clutch mechanism when the door moves to the open side, and a third rotating body, Transmission unit parallel to which the rotation of the fourth rotating body is transmitted The third rotating body and the fourth rotating body have a non-transmitting portion that cancels transmission of rotation, and the fourth rotation is performed when the door moves the predetermined distance from the open position. A driven member configured to displace the non-transmission portion from a transmission release position with the third rotary body to a transmission release position with the fourth rotary body by transmitting the rotation of the body; And a braking mechanism that applies a braking force to the displacement of the driven member that is displaced by transmission of rotation.

  In order to achieve the above object, a sliding door device according to the present invention includes a door body, an automatic closing mechanism that causes the door body to self-propel to the closed side, a door body braking device according to the present invention, and the door body. And a rotation imparting section that rotates the first rotating body and the second rotating body of the door braking device.

  The door brake device according to the present invention and the sliding door device provided with the door brake device are configured as described above, so that the door can be decelerated from any open position to the closed side while being operated. The occurrence of defects can be suppressed.

FIG. 3 is a partially broken schematic front view schematically showing an example of a door braking device according to an embodiment of the present invention and an example of a sliding door device provided with the same, and omitting a part corresponding to the Z portion in FIG. 3. is there. (A) is the schematic plan view which abbreviate | omitted a part of the sliding door apparatus, (b) is a schematic bottom view which abbreviate | omitted a part of the sliding door apparatus. It is a partially broken schematic front view which shows typically an example of the state which constructed the sliding door apparatus. It is a partially broken schematic front view corresponding to FIG. (A) is a partially broken schematic longitudinal sectional view corresponding to the YY line arrow in (b), and (b) is a partially broken schematic crossing corresponding to the XX line arrow in FIG. FIG. (A)-(c) is the partially broken schematic front view which abbreviate | omitted the part corresponding to FIG.3 and FIG.4. (A)-(c) is the partially broken schematic front view which abbreviate | omitted the part corresponding to FIG. (A)-(c) is the partially broken schematic front view which abbreviate | omitted the part corresponding to FIG. An example of the door brake device concerning other embodiments of the present invention and an example of a sliding door device provided with this are shown typically, (a) is a partial fracture outline front view corresponding to Drawing 1, (b) ) Is a schematic plan view corresponding to FIG. (A)-(d) is a partially broken schematic front view corresponding to FIGS. 7 (a)-(c) and FIG. 8 (c), respectively.

Embodiments of the present invention will be described below with reference to the drawings.
In some of the drawings, some of the detailed reference numerals attached to other drawings are omitted.
Further, in the following embodiments, directions such as the vertical direction will be described with reference to a state in which the door brake device according to each embodiment and the sliding door device including the door brake device are constructed.

FIGS. 1-8 is a figure which shows typically an example of the door-body braking device which concerns on 1st Embodiment, and a sliding door apparatus provided with the same.
As shown in FIGS. 1 and 6, the door braking device 30 according to the present embodiment is installed in the door 10 that can be self-propelled on the closing side by the automatic closing mechanism 23, and is closed from any open position to the closing side. The door 10 that moves a predetermined distance is decelerated.
As shown in FIGS. 3 to 5, the sliding door device 1 according to the present embodiment includes a door body 10, an automatic closing mechanism 23 that causes the door body 10 to self-propel to the closed side, and door body braking according to the present embodiment. Device 30. Moreover, the sliding door apparatus 1 is provided so that the traveling track | orbit of the door 10 may be followed, and is provided with the rotation provision part 19 which rotates the 1st rotary body 33 and the 2nd rotary body 37 of the door brake device 30 mentioned later. .

In this embodiment, the sliding door device 1 is configured to include an upper rail 15 that supports the door 10 in a suspended manner. With such a configuration, the door body 10 can be moved in the opening and closing direction along the upper rail 15, and it is not necessary to provide a door rail or the like on the lower side of the door body 10. Can be difficult.
Further, in the present embodiment, the door body braking device 30 is installed on the upper end side of the door body 10 such that the first rotating body 33 and the second rotating body 37 are rotated by the rotation applying unit 19 provided on the upper rail 15. It is assumed to be configured. With such a configuration, the rotation imparting unit 19 is compared to the one provided with the door braking device 30 on the lower end side of the door 10 supported in a suspended state and the rotation imparting unit 19 corresponding thereto. Therefore, it is possible to make it difficult for the first rotating body 33 and the second rotating body 37 to be displaced due to the movement of the door 10. Accordingly, the first rotating body 33 and the second rotating body 37 can be reliably rotated by the rotation applying unit 19. The specific configuration of the door braking device 30 will be described later.

The sliding door device 1 is not limited to a residence, and may be installed in a public facility such as a medical facility or a welfare facility, in a commercial facility, in various stores, in a factory, or the like. It is not restricted and is good also as what is installed outdoors.
In the present embodiment, the sliding door device 1 is configured to include a single door body 10 arranged in a single-drawing shape. In the illustrated example, the door body 10 is provided so as to open and close an opening 9 serving as an entrance / exit provided in the wall body 2 such as a partition wall, and is accommodated in a sleeve wall provided in a part of the wall body 2. It shows an example built with a sleeve wall. Moreover, the example which built the door 10 in the door frame provided with the upper frame 4, the door tip side vertical frame 5, the door bottom side vertical frame 6, and the intermediate | middle vertical frame (neutral standing) 7 is shown. Further, in the illustrated example, the upper side of the opening 9 and both sides in the opening width direction are divided by the upper frame 4, the door-end side vertical frame 5, and the intermediate vertical frame 7. The lower side of the opening 9 may be defined by a lower frame, but is illustrated as being partitioned by the floor 3 in the illustrated example.

Further, an example is shown in which the upper frame 4 is provided with a concave groove that opens downward to receive the upper rail 15 over its entire length. In addition, a door drilling groove in which each end portion in the door width direction of the door body 10 is accommodated is provided on each of the prospective surfaces (opposing surfaces) of the door-end side vertical frame 5 and the door-end side vertical frame 6 over the entire length. An example is shown. Moreover, the example which provided the clearance gap shielding member (mohair member) which contact | connects the edge part of the side which faces the door body 10 of the intermediate | middle vertical frame 7 so that it may slide on the surface of the side facing the sleeve wall of the door body 10 is shown. Yes.
The door frames 4, 5, 6, and 7 may be fixed to an appropriate frame base, and the sliding door device 1 is provided with these door frames 4, 5, 6, and 7. You may make it grasp. Moreover, although the example which showed these door frames 4,5,6,7 as the fixed frame shape is shown in the example of a figure, it is good also as what was made into the casing frame shape provided with the casing frame. Further, without providing such door frames 4, 5, 6, and 7, the opening 9 may be partitioned by an interior finish surface such as a cross finish in a frameless manner or other finish surfaces.

  Moreover, in this embodiment, as shown in FIG.3, FIG4 and FIG.5 (a), the cover member which covers the rail width direction (direction along a door thickness direction) both sides of the upper rail 15 to the sliding door apparatus 1, respectively. 50 and 50 are provided. These cover members 50, 50 are in the form of strips (curtain plates) that are long in the rail longitudinal direction, and are arranged so as to cover the gap between the upper frame 4 to be attached to the upper rail 15 and the door body 10. The That is, these cover members 50, 50 are configured to cover the gap between the prospective surface facing the lower side of the upper frame 4 and the upper end surface of the door body 10. In the example of the figure, the vertical dimension of these cover members 50, 50 is shown as an example in which the upper end of the door 10 can be covered. Further, the cover member 50 on the side of the anti-sleeve wall surface of the door body 10 has a length dimension according to the dimension along the door width direction from the door tip side vertical frame 5 to the door bottom side vertical frame 6. The cover member 50 on the sleeve wall surface side of the door body 10 has a length dimension corresponding to the dimension along the door width direction from the door tip side vertical frame 5 to the intermediate vertical frame 7. In addition, these cover members 50 and 50 are good also as what is fixed to the upper frame 4 grade | etc., With a screw | thread or an adhesive agent. Moreover, it is good also as an aspect which provided the cover part which covers the clearance gap between the doors 10 in the upper frame 4 instead of the aspect which provided such cover members 50 and 50, and also such a cover. The upper rail 15 and the like may be exposed without providing the members 50 and 50 and the cover portion.

The door body 10 has a substantially rectangular flat plate shape. Further, as shown in FIGS. 3, 4, and 5 (b), handles 14, 14 are provided on both sides in the door thickness direction at the door end side end of the door body 10. In the present embodiment, the pullers 14 and 14 are not in a digging shape but in a bar shape (bar shape) extending in the vertical direction. These pullers 14 and 14 have substantially the same configuration, and are provided so as to overlap each other when viewed in the thickness direction.
The pullers 14 and 14 are provided such that a gap is formed between the door 10 and the door-end side vertical frame 5 so that fingers can be inserted in a state where the door 10 closes the opening 9. Further, the handle 14 provided on the sleeve wall surface side of the door body 10 is provided so that a gap is formed between the intermediate vertical frame 7 and a finger can be inserted in a state where the door body 10 is fully opened. ing. That is, the door body 10 is disposed in a fully open state so that a portion on the door tip side including the pull handles 14 and 14 protrudes toward the opening 9 rather than an inner surface facing the opening 9 side of the intermediate vertical frame 7. It is configured. In other words, an example is shown in which the door body 10 is built so as to form a so-called leftover. In addition, you may make it provide the locking mechanism which can be locked / unlocked in the handle | drawers 14,14 grade | etc., Of this door body 10. FIG. In addition, the pullers 14 and 14 are not limited to such rod-shaped ones, and may be provided in a digging shape. In this case, it is good also as a structure which built the door 10 so that what is called a remnant may not be formed, ie, the opening 9 may be opened over the whole opening width direction.

Further, the door width dimension of the door body 10 may be an appropriate dimension according to the opening width of the opening 9 so that the opening 9 can be closed. In this embodiment, as shown in FIG. 3, the door width side of the door body 10 is viewed with the door bottom side end of the door body 10 in the thickness direction of the middle vertical frame 7 with the opening 9 closed. The dimensions are such that polymerization occurs. In addition, the opening width of the opening 9 may be an appropriate dimension from the viewpoint of entry / exit and barrier-free characteristics, and the effective width of the door 10 is, for example, 750 mm or more or 1000 mm or more. It is good also as an appropriate dimension according to the undrawn dimension.
Moreover, the height dimension of this door 10 is good also as a dimension from floor surface 3 vicinity to the upper rail 15 vicinity, as shown in FIG.3, FIG4 and FIG.5 (a), for example, 1800mm- It may be about 2500 mm. Moreover, the door thickness dimension of the door body 10 is good also as about 20 mm-40 mm, for example. Each dimension of the door body 10 may be set as appropriate according to the installation location, usage, and the like of the sliding door device 1.

Moreover, the sliding door apparatus 1 is provided with the lower end guide member 8 which guides the lower end side of the door body 10, as shown in FIG.3, FIG4 and FIG.5. In the present embodiment, a concave groove 11 that opens downward is provided at the lower end portion of the door body 10 so as to extend in the door width direction, and the lower end guide member 8 is provided with a guide pin that is inserted (freely inserted) into the concave groove 11. It has a configuration with.
As shown in FIG. 5 (b), the lower end guide member 8 is provided at a plurality of locations so as to be located immediately below the movement locus of the door body 10 that moves between the closed position and the fully opened position. You may make it provide this lower end guide member 8 so that at least one may exist directly under the door 10 which moves between a closed position and a full open position. Alternatively, the lower end guide member 8 may be a magnet guide that is disposed so as to be embedded in the floor by accommodating a guide pin provided with a magnet so that the guide pin can be moved up and down. In this case, a magnet, a magnetic body, or the like may be provided in the recessed groove 11 of the door body 10 so as to correspond to the lower end guide member 8.

As shown in FIG. 5 (b), the lower guide member 8 provided at a position that always overlaps with the door 10 that moves between the closed position and the fully opened position is configured such that the lower guide member 8 that cannot be raised and lowered in the vertical direction. It is good also as a fixed guide member provided with (guide pin). As the lower end guide member 8 for guiding the lower end side of the door body 10, various other configurations may be used.
Further, the door body 10 is not limited to a mode in which the door body 10 is built in a sleeve wall as shown in the figure, but may be in a mode in which a door pocket is stored or an outset is stored. Moreover, it is not restricted to the aspect which provided the single door body 10 in the single drawing shape, It is good also as an aspect which provided the several door body 10 in the drawing shape or the drawing shape. In this case, it is good also as a structure which provided the automatic closing mechanism 23 and the door body braking device 30 which are mentioned later in at least 1 door 10. Further, the opening 9 is not limited to an entrance and the like, and may be an opening 9 such as various storages or windows. Moreover, as the door body 10 decelerated by the door body braking device 30, a partition body arranged in a partition shape, a screen shape or the like may be used, and various other configurations may be used.

As shown in FIG. 6, the upper rail 15 is elongated in the door width direction of the door body 10 and has a uniform cross-sectional shape over the entire length. The length dimension of the upper rail 15 is an appropriate dimension so that the upper end side guide of the door body 10 moving between the closed position and the fully opened position is possible, for example, a door between a pair of vertical frames 5 and 6. It is a dimension according to the dimension along the width direction.
The upper rail 15 is provided with a rail groove 16 extending in the longitudinal direction and opening in one direction. The rail groove 16 is provided over the entire length of the upper rail 15 and is provided so as to open downward in the present embodiment. As shown in FIG. 5A, the upper rail 15 includes a top wall portion 17 that defines an upper side that is the groove bottom side of the rail groove 16, and both side wall portions 18 and 18 that define both sides in the groove width direction. , Is provided. Further, guide piece portions 18a and 18a are provided at the lower end portions of the side wall portions 18 and 18 so as to protrude in directions facing each other. In the example shown in the figure, the protruding end portions of the guide piece portions 18a and 18a are formed in a protruding curved surface shape that protrudes upward when viewed in the rail longitudinal direction. The upper rail 15 may be provided in a manner embedded in the ceiling.

As shown in FIGS. 3, 4, and 5 (a), guided members 20 and 27 that are guided and supported by the upper rail 15 are provided on the upper end side of the door body 10. Further, the guided members 20 and 27 include a door tip side guided member 20 provided on the door tip side of the door body 10 and a door bottom side guided member 27 provided on the door bottom side of the door body 10. It is supposed to be configured.
In the present embodiment, a configuration in which a first traveling body 28 and a second traveling body 29 that travel while being supported by the upper rail 15 are provided on the upper end side of the door body 10 with an interval in the longitudinal direction of the upper rail 15. It is said. With such a configuration, the upper end side of the door body 10 can be smoothly guided along the upper rail 15 by the traveling bodies 28 and 29. Further, the door braking device 30 described later is configured to be fixed and held so as to be bridged between the first traveling body 28 and the second traveling body 29. With such a configuration, it is possible to more effectively prevent a positional shift or the like associated with the movement of the door 10 of the first rotating body 33 and the second rotating body 37 with respect to the rotation applying unit 19 provided on the upper rail 15. Can do. That is, since the door brake device 30 is fixedly held with respect to the first traveling body 28 and the second traveling body 29 guided and supported by the upper rail 15, the door body 10 of the door brake device 30 with respect to the upper rail 15 is fixed. The positional shift accompanying movement can be suppressed. Accordingly, the first rotating body 33 and the second rotating body 37 can be reliably rotated by the rotation applying unit 19. Further, when the door body braking device 30 is directly fixed to the door body 10 and the vertical position of the door body 10 with respect to the traveling bodies 28 and 29 (upper rails 15) can be adjusted, the door body 10, the upper and lower mounting positions of the door braking device 30 need to be adjusted. If it is set as the said structure, adjustment of the attachment position with respect to the door body 10 of such a door body braking device 30 can be made unnecessary.

Further, in the present embodiment, the first traveling body 28 and the second traveling body 29 constitute the door bottom side guided member 27. That is, in this embodiment, the door body braking device 30 is installed on the door bottom side on the upper end side of the door body 10.
As shown in FIGS. 2 and 5 (a), the first traveling body 28 and the second traveling body 29 of the door-side guided member 27 are disposed on the guide pieces 18a and 18a of the upper rail 15 in the door thickness direction. Rolling elements (rollers) 28a and 29a that run around an axis along the axis are provided. In the present embodiment, the rolling elements 28 a, 28 a, 29 a, and 29 a that are guided and supported by the guide pieces 18 a and 18 a on both sides in the rail width direction of the upper rail 15 are used as the door thicknesses of the first traveling body 28 and the second traveling body 29. It is the structure provided in each of the direction both sides. Further, in the illustrated example, a plurality of (two in the illustrated example) rolling elements 28a, 28a, 28a, 28a, 28a, 28a, 28b are spaced apart in the door width direction on both sides of the first traveling body 28 and the second traveling body 29, respectively. The example which provided 28a, 28a, 29a, 29a, 29a, 29a is shown. Further, in the illustrated example, an engagement groove that engages with the distal end portions of the guide piece portions 18a and 18a is provided on the outer peripheral surfaces of the rolling elements 28a and 29a over the entire circumference.

  Further, the first traveling body 28 is provided with a recessed attachment portion (cup portion) 12 provided at the door bottom side upper end portion of the door body 10 so as to open outward and upward in the door width direction. The attached portion 28b to be attached is provided. Further, the second traveling body 29 is arranged closer to the door end side than the first traveling body 28 and is connected to the first traveling body 28 via a door body braking device 30 described later. In other words, the second traveling body 29 is not provided with a mounted portion that is attached to the door body 10. In addition, it is good also as an aspect etc. which provided the to-be-attached part attached to the door body 10 also in the 2nd traveling body 29 instead of such an aspect.

  The door end side guided member 20 includes traveling bodies 21 and 22 that travel while being guided and supported by the upper rail 15. In this embodiment, as shown in FIG. 6, the door end side guided member 20 is provided with an automatic closing mechanism 23 and a buffer mechanism 25 that decelerates the door body 10 that moves to the closed position. . That is, in this embodiment, the automatic closing mechanism 23 is provided on the door end side on the upper end side of the door body 10. In addition, a first traveling body 21 and a second traveling body 22 are provided on the door-end-side guided member 20 as traveling bodies at intervals in the longitudinal direction of the upper rail 15. Further, the buffer mechanism 25 is configured to be fixed and held so as to be bridged between the first traveling body 21 and the second traveling body 22. In the present embodiment, the automatic closing mechanism 23 and the buffer mechanism 25 are arranged so as to be positioned in the rail groove 16 of the upper rail 15.

The first traveling body 21 and the second traveling body 22 are rolling elements that run on the guide piece portions 18a and 18a of the upper rail 15 by rotating around the axis along the door thickness direction, as in the door bottom side described above. Rollers) 21a, 21a, 22a, 22a are provided on both sides of the door thickness direction. Similarly to the above, a plurality of rolling elements 21 a, 21 a, 21 a, 21 a, 22 a, 22 a, 22 a are spaced apart in the door width direction on both sides of the first traveling body 21 and the second traveling body 22 in the door thickness direction. , 22a may be provided.
Moreover, like the above-mentioned door bottom side, the concave shape provided in the 1st traveling body 21 so that it might open toward the door width direction outward side and the upper side in the door-end side upper end part of the door body 10 was provided. It is set as the structure which provided the to-be-attached part 21b attached to the attachment part (cup part) 12. FIG. In addition, the second traveling body 22 is arranged on the door bottom side of the first traveling body 21 and is connected to the first traveling body 21 via a buffer mechanism 25 described later. That is, the second traveling body 22 has a configuration in which a portion to be attached to the door body 10 is not provided as described above. In addition, it is good also as an aspect etc. which replaced with such an aspect and to which the to-be-attached part attached to the door 10 was provided also to the 2nd traveling body 22. FIG.

  The automatic closing mechanism (automatic closing mechanism) 23 includes an urging member 24 that urges the door 10 in the open position toward the closing side. In the present embodiment, as shown in FIG. 6, the biasing member 24 has an inner peripheral end (winding core) fixed to the upper end side of the door body 10 and an outer peripheral end 24 a fixed to the upper rail 15. It is made a spiral spring. The second traveling body 22 of the door-side guided member 20 which is the upper end side of the door body 10 is provided with an inner end fixing portion 23a to which the inner peripheral side end portion of the biasing member 24 is fixed. The inner end fixing portion 23a may be formed in a drum shape that rotates around an axis along the door thickness direction with the feeding and winding of the urging member 24. The outer peripheral side end portion 24 a is provided so as to be positioned closer to the door end side than the inner end fixing portion 23 a, and is fixed to an intermediate portion of the upper rail 15. In addition, it is good also considering the outer peripheral side edge part 24a as an edge part of the string-like member wound up by the urging | biasing member 24 instead of the aspect made into the edge part of the spiral spring which comprises the urging | biasing member 24. FIG.

  Moreover, as shown in FIG.3 and FIG.6 (c), the urging | biasing member 24 is made into the state wound up in the closed position, and the inner end fixing | fixed part 23a and the outer peripheral side edge part 24a are made into the state. The dimension along the door width direction is the shortest. Further, as shown in FIGS. 4 and 6A, the urging member 24 has the door body 10 with respect to the outer peripheral side end portion 24a when the door body 10 is in the open position (the fully open position in the illustrated example). The inner end fixing part 23a fixed to the upper end side of the inner side relatively moves, and the outer end 24a side is extended and extended. In this state, a state in which the urging force (biasing force, elastic restoring force) is generated in the urging member 24, that is, a state in which the urging force for moving the door 10 to the closing side is stored in the automatic closing mechanism 23 is stored. Become. In this state, if an external force or the like that maintains the door 10 in the open position is unloaded, the door 10 is closed by the elastic restoring force of the biasing member 24 as shown in FIG. Move to. The urging member 24 may be configured to move the door body 10 in the fully open position to the closed position. Moreover, it is good also as a structure which provided the catch mechanism etc. which hold | maintain the door 10 in a fully open position against the urging | biasing by the automatic closing mechanism 23 to the closing side.

The shock absorbing mechanism 25 is configured to relieve and absorb the impact between the door end side end portion of the door body 10 that closes the opening 9 and the door end side vertical frame 5 as the contact object. In the illustrated example, the buffer mechanism 25 is a cylinder such as an air cylinder that is elongated in the door width direction, the first traveling body 21 is provided on the door end side, and the second traveling body 22 is provided on the door bottom side. It has a configuration.
The buffer mechanism 25 is provided with a cylinder body, a rod 26 that expands and contracts in the moving direction of the door 10 with respect to the cylinder body, a return portion such as a spring that returns the shortened rod 26 to an extended state, and the like. Yes. In addition, as shown in FIG. 6A, when the door body 10 is set to the open position, the buffer mechanism 25 is configured such that the rod 26 extended by the return portion is closer to the door end side end face of the door body 10. It is set as the state protruded largely in the front side vertical frame 5 side. Further, when the door 10 is moved to the closing side by the automatic closing mechanism 23, as shown in FIG. 6B, the end of the inner rail of the upper rail 15 or the door tip of the upper rail 15 as a contact object is provided. It abuts against the abutting portion such as the side vertical frame 5 and is shortened as shown in FIG. By shortening the rod 26 in this manner, the door body 10 moving to the closed position is decelerated (attenuated) by a so-called air cushion action caused by compression of air in the cylinder body.

By providing such a buffer mechanism 25, it is possible to mitigate and absorb the impact of the door end side end portion of the door body 10 and the door end side vertical frame 5 as a contact object thereof, and the impact sound can be absorbed. Generation | occurrence | production, damage to the door 10, the automatic closing mechanism 23, etc. can be suppressed.
The buffer mechanism 25 is not limited to the one provided with an air cylinder as shown in the figure, and is provided with a liquid type (oil type) cylinder utilizing the viscous resistance of a liquid such as oil. Or an elastic body such as rubber may be provided. As the buffer mechanism 25 for decelerating the door 10 moving to the closed position, various other configurations can be adopted. Moreover, it is good also as a structure which does not provide such a buffer mechanism 25.
Further, when the above-described automatic closing mechanism 23 is provided with such a buffer mechanism 25, the door body 10 is moved to the closing side in a state where the buffer mechanism 25 and the door body braking device 30 described later are operating. (Self-propelled) It may be configured to be possible.

  Further, the automatic closing mechanism 23 is not limited to the one in which the outer peripheral side end 24a of the urging member 24 as described above is fixed to the upper rail 15, but a rotation imparting member such as a rack provided on the upper rail 15 side. It is good also as what was provided with the urging member rotated and accumulated by. Further, the urging member provided in the automatic closing mechanism 23 is not limited to the spiral spring, and may be another spring member such as a tension coil spring. Moreover, as the automatic closing mechanism 23, it is not restricted to what was set as the structure which urges | biases the door 10 to the closing side with such a spring member. As the automatic closing mechanism 23, for example, one end of a string-like member is fixed to the upper end side of the door body 10, and the other end side of the string-like member is accommodated in a hollow vertical frame or the like. It is good also as what was set as the structure which provided the weight (ballast) etc. in the other end of the member. Moreover, it is good also as what was set as the structure provided with the rail inclined in the downhill shape toward the closing side, and the employment | adoption of the automatic closing mechanism 23 made into various structures is possible for others. Moreover, it is good also as an aspect which replaced with the aspect which provided the automatic closing mechanism 23 (and buffer mechanism 25) in the door tip side, and provided the door body braking device 30 in the door bottom side, and provided these in the reverse side. In this case, you may make it deform | transform suitably as needed.

  As shown in FIGS. 7 and 8, the door braking device 30 includes a first rotating body 33 and a second rotating body 37 that are rotated by a rotation applying portion 19 provided along the traveling track of the door body 10. ing. The door braking device 30 is rotated in conjunction with the first rotating body 33 when the door 10 moves to the open side, while the one-way clutch mechanism when the door 10 moves to the closing side. A third rotating body 34 that idles by 35 is provided. The door braking device 30 is rotated in conjunction with the second rotating body 37 when the door 10 moves to the closing side, while the one-way clutch mechanism when the door 10 moves to the opening side. A fourth rotating body 38 that idles by 39 is provided. Further, the door braking device 30 releases the transmission of the rotation of the third rotating body 34 and the fourth rotating body 38 and the transmission of the rotation of the third rotating body 34 and the fourth rotating body 38. A driven member 40 having a non-transmitting portion 40b is provided. When the door 10 moves a predetermined distance from any open position to the closed side, the driven member 40 is transmitted with the rotation of the fourth rotating body 38 and the non-transmitting portion 40b communicates with the third rotating body 34. It is configured to be displaced from the release position to the transmission release position with the fourth rotating body 38. The door braking device 30 includes a braking mechanism 43 that applies a braking force to the displacement of the driven member 40 that is displaced by the rotation of the fourth rotating body 38 being transmitted.

That is, the door body braking device 30 includes a fully opened position, and is a fourth rotating body that rotates when the door body 10 that is set to an arbitrary open position in the middle from the closed position to the fully opened position moves a predetermined distance toward the closed side. The braking force of the braking mechanism 43 is applied to the rotation of 38 through the driven member 40. This braking force serves as a resistance (brake) to the rotation of the second rotating body 37 interlocked with the rotation of the fourth rotating body 38, and the automatic closing mechanism 23 decelerates the door body 10 that runs on the closing side.
Further, in the present embodiment, when the non-transmission portion 40b of the driven member 40 is displaced to the transmission release position with the fourth rotating body 38 as described above, the non-transmission portion 40b releases the transmission with the fourth rotating body 38. A displacement assist mechanism 47 that displaces the driven member 40 so as to be positioned is provided.

  In the present embodiment, as shown in FIG. 1, at least the first rotating body 33 and the second rotating body 37 of the door braking device 30 are arranged so as to be positioned in the rail groove 16 of the upper rail 15. It is configured. With such a configuration, at least a part of the door braking device 30 can be arranged using the space in the rail groove 16 of the upper rail 15. As a result, the door brake device 30 can be made inconspicuous, and the door brake device 30 can be prevented from being largely exposed. The shielding member that shields the door brake device 30 and the above-described Even when such a cover member 50 is provided, the vertical dimension can be reduced.

  Moreover, it is set as the structure which provided the accommodation recessed part 13 which receives the downward part of the door body braking device 30 in the upper end part of the door body 10. As shown in FIG. The housing recess 13 is provided in a cutout shape so as to open upward and over the entire door thickness direction. Moreover, in the example of the figure, the dimension along the door width direction of the accommodation recess 13 is larger than the dimension along the door width direction of the lower portion of the door braking device 30 received in the accommodation recess 13. . The dimension along the door width direction of the housing recess 13 is such that the first traveling body 28 is in the state where the lower part of the door braking device 30 is received with respect to the attachment portion 12 at the upper end on the door bottom side of the door 10. The attached portion 28b may be appropriately dimensioned so as to be detachable along the door width direction. In other words, the housing recess 13 is connected to the door bottom side of the lower portion of the door body braking device 30 with the door edge side guided member 27 and the door body braking device 30 attached to the door body 10. It is good also as a structure in which the space according to the dimension along the door width direction of the to-be-attached part 28b of the body 28 is formed.

  Moreover, in this embodiment, it is set as the structure which provided the 1st rotary body 33 and the 2nd rotary body 37 side by side at intervals in the moving direction (door width direction) of the door body 10, and a rotation provision part. A gear that meshes with a single rack 19 that constitutes 19. With such a configuration, the first rotating body 33 and the second rotating body 37 are made compact in the vertical direction and the door thickness direction as compared with those in which the first rotary body 33 and the second rotary body 37 are provided in parallel in the vertical direction and the door thickness direction. Can be achieved. Thereby, like this embodiment, the 1st rotary body 33 and the 2nd rotary body 37 can also be provided using the space in the rail groove 16 provided in the elongate shape in the moving direction of the door 10. . Further, compared to the first rotating body 33 and the second rotating body 37 that are friction rollers such as a rubber roller that rotates in frictional contact with the rotation applying portion 19, it is difficult for mutual slip to occur, and rotation is applied. The first rotary body 33 and the second rotary body 37 can be reliably rotated by the part 19. Moreover, it is not necessary to provide the rack as the rotation provision part 19 with which each of the 1st rotary body 33 and the 2nd rotary body 37 meshes | engages, and the number of parts by the side of the sliding door apparatus 1 can be reduced.

  In the present embodiment, the third rotating body 34 is provided coaxially with the first rotating body 33, and the fourth rotating body 38 is provided coaxially with the second rotating body 37. With such a configuration, the third rotator 34 and the fourth rotator 38 are arranged in parallel in the vertical direction and the door width direction of the first rotator 33 and the second rotator 37 so that they can be interlocked by an appropriate transmission mode. Compared with what was provided in <3>, compactification to an up-down direction and a door width direction can be achieved. The third rotating body 34 and the fourth rotating body 38 have a smaller diameter than the first rotating body 33 and the second rotating body 37 so as not to come into contact with the rack as the rotation applying unit 19. With such a configuration, it is difficult to influence the meshing between the rotation imparting portion 19 and the first rotating body 33 and the second rotating body 37 while achieving compactness as described above. It is possible to reduce the necessity of adjusting the position and the like in the axial direction so that the fourth rotating body 38 does not contact the rotation applying unit 19.

In the present embodiment, the first rotating body 33 and the second rotating body 37 are gears (spur gears) having the same size and shape, that is, the same diameter and the same number of teeth (same pitch). Moreover, it is set as the structure which provided these 1st rotary bodies 33 and the 2nd rotary body 37 rotatably around the axis | shafts 32 and 36 along a door thickness direction. That is, the first rotating body 33 and the third rotating body 34 are provided so as to be rotatable around the first shaft 32 along the axial direction in the door thickness direction, and the second rotating body 37 and the fourth rotating body 38 are It is provided so as to be rotatable around the second shaft 36 along the axial direction in the door thickness direction.
Further, the first rotating body 33 and the second rotating body 37 are provided so as to be positioned at the same height. Further, as shown in FIG. 2A, the first rotating body 33 and the second rotating body 37 are provided so as to coincide with each other in the door thickness direction. That is, the first rotator 33 and the second rotator 37 are provided so that both sides in the door thickness direction of the first rotator 33 and the second rotator 37 are substantially flush with each other. In the present embodiment, the second rotating body 37 is provided so as to be positioned closer to the door butt than the first rotating body 33. In addition, the space | interval along the door width direction between these 1st rotary bodies 33 and the 2nd rotary body 37 is good also as an appropriate space | interval so that these may not contact mutually.

As shown in FIG. 1, the rotation imparting portion 19 is elongated in the longitudinal direction of the upper rail 15. The rotation imparting portion 19 may be provided integrally with the upper rail 15 or may be appropriately fixed to the upper rail 15. Further, the rotation imparting portion 19 may be provided over the entire length of the upper rail 15 or may be provided at a midway in the longitudinal direction of the upper rail 15. This rotation imparting part 19 should just be provided so that the 1st rotary body 33 and the 2nd rotary body 37 may always mesh | engage, when the door 10 moves between a closed position and a full open position.
Moreover, in this embodiment, as shown in FIG.1 and FIG.5 (a), it is the rotation provision part 19 so that a tooth part may face a lower side so that it may follow the lower surface of the top wall part 17 of the upper rail 15. FIG. It is set as the structure which provided. In the illustrated example, the rotation imparting portion 19 is provided at a position close to one side in the rail width direction of the top wall portion 17 so as to correspond to the position along the door thickness direction of the first rotating body 33 and the second rotating body 37. It has a configuration.

The third rotator 34 rotates in one direction around the shaft (first axis) 32 in conjunction with the rotation of the first rotator 33, while the one-way clutch mechanism 35 rotates the first rotator 33 in the other direction. It is configured to run idle without being linked to. In addition, the fourth rotating body 38 rotates around the axis (second axis) 36 in one direction opposite to the third rotating body 34 in conjunction with the rotation of the second rotating body 37, while in the other direction. The one-way clutch mechanism 39 is configured to idle without being interlocked with the rotation of the second rotating body 37. That is, the one-way clutch mechanisms 35 and 39 are configured to be able to transmit rotations in the opposite directions.
The one-way clutch mechanisms 35 and 39 have an inner ring and an outer ring, and the rotation of the inner ring rotating in one direction is transmitted to the outer ring, while the outer ring is idled with respect to the inner ring rotating in the other direction. It is possible to adopt a known configuration such as an allowable configuration. Such one-way clutch mechanisms 35 and 39 may be, for example, a cam type or a sprag type.
In the present embodiment, the third rotating body 34 and the fourth rotating body 38 are provided so as to coincide with each other in the door thickness direction as shown in FIG. The third rotating body 34 and the fourth rotating body 38 are provided close to one side of the first rotating body 33 and the second rotating body 37 in the door thickness direction.

In the case of the above configuration, the inner ring of the one-way clutch mechanism 35 is fixed so as not to rotate with respect to the first rotating body 33, and the inner ring and the first rotating body 33 are fixedly fixed. It is good also as a structure hold | maintained rotatably with respect to the provided 1st axis | shaft 32. FIG. Alternatively, the third rotating body 34 may be provided integrally with the outer ring of the one-way clutch mechanism 35 or may be configured so as to be non-rotatable with respect to the outer ring.
Similarly, the inner ring of the one-way clutch mechanism 39 is fixed to the second rotating body 37 so as not to rotate, and the inner ring and the second rotating body 37 are fixedly attached to a second shaft 36 that is fixedly provided. It is good also as a structure hold | maintained rotatably with respect to it. Further, the fourth rotating body 38 may be provided integrally with the outer ring of the one-way clutch mechanism 39 or may be configured so as not to rotate with respect to the outer ring. Instead of such a mode, the first rotating body 33 and the second rotating body 37 and the one-way clutch mechanisms 35 and 39 with respect to the first shaft 32 and the second shaft 36 that are rotatably held by the bearing portion or the like. The inner ring may be fixedly provided.

As shown in FIGS. 7A and 7B, the one-way clutch mechanism 35 on the third rotating body 34 side configured as described above is rotated by the rotation applying unit 19 when the door body 10 moves to the open side. The locked state is such that the third rotating body 34 is rotated in conjunction with the rotating first rotating body 33. Further, as shown in FIGS. 7C and 8, the one-way clutch mechanism 35 on the third rotating body 34 side is rotated by the rotation applying portion 19 when the door body 10 moves to the closing side. A free state in which the idling of the third rotator 34 relative to the one rotator 33 is allowed.
Further, as shown in FIGS. 7C and 8, the one-way clutch mechanism 39 on the fourth rotating body 38 side is rotated by the rotation applying portion 19 when the door body 10 moves to the closing side. The locked state is such that the fourth rotating body 38 is rotated in conjunction with the two-rotating body 37. Further, as shown in FIGS. 7A and 7B, the one-way clutch mechanism 39 on the fourth rotating body 38 side is rotated by the rotation applying unit 19 when the door body 10 moves to the open side. A free state in which the fourth rotating body 38 is allowed to idle with respect to the second rotating body 37 is set.
The third rotating body 34 and the fourth rotating body 38 are gears having the same size and shape, that is, gears (spur gears) having the same diameter and the same number of teeth (same pitch). The diameters of the third rotating body 34 and the fourth rotating body 38 (the diameter of the addendum circle) may be appropriate diameters so as not to contact the tooth portion of the rotation applying portion 19.

Further, in the present embodiment, the driven member 40 is a gear having a tooth portion 40a constituting a transmission portion and a missing tooth portion 40b constituting a non-transmission portion in the circumferential direction, that is, a so-called missing gear. For example, it may be considered that the transmission unit and the non-transmission unit are linearly provided along the moving direction of the door body 10. In this case, the driven member 40 is connected to the door body 10 with respect to the door body 10. A mechanism that can be slidably held in 10 moving directions is required. According to the said structure, compared with such a thing, simplification of a structure can be achieved.
Further, the tooth portion (spur gear-shaped tooth portion) 40 a of the driven member 40 is configured to mesh with the tooth portions of the third rotating body 34 and the fourth rotating body 38. With such a configuration, friction such as a rubber roller that rotates the third rotating body 34 and the fourth rotating body 38 in frictional contact with the transmission portion (40a) that is the high friction portion of the driven member 40. Compared with the roller, slippage is less likely to occur. Thereby, the rotation of the third rotating body 34 and the fourth rotating body 38 can be reliably transmitted to the driven member 40.

In addition, the driven member 40 is configured to be rotatable around the third shaft 42 along the axial direction in the door thickness direction. The driven member 40 may be a member that is rotatably held with respect to a third shaft 42 that is fixedly provided, and may be fixedly attached to the third shaft 42 that is rotatably held with respect to an appropriate bearing portion. It may be provided. The third shaft 42 is a central portion between the first shaft 32 and the second shaft 36 so that the tooth portion 40a of the driven member 40 meshes with the tooth portions of the third rotating body 34 and the fourth rotating body 38. It is provided so that it may be located directly below.
The driven member 40 is provided so as to mesh with the third rotating body 34 and the fourth rotating body 38 and not to interfere with the first rotating body 33 and the second rotating body 37. In the illustrated example, the driven member 40 is positioned in the door thickness direction of the first rotating body 33 and the second rotating body 37 so that the driven member 40 is positioned substantially coincident with the third rotating body 34 and the fourth rotating body 38 in the door thickness direction. The example provided so that it may be located in one side is shown.

The tooth portion 40a and the missing tooth portion 40b of the driven member 40 are in a state in which the missing tooth portion 40b is positioned on one of the third rotating body 34 and the fourth rotating body 38, that is, the driven member 40 In the state where the transmission is released, the tooth portion 40a is engaged with the other. That is, the tooth portion 40a and the missing tooth portion 40b are provided so that the missing tooth portion 40b is positioned on both the third rotating body 34 and the fourth rotating body 38 so that the driven member 40 does not become the transmission release position. It has been.
The distance that the toothless portion 40b of the driven member 40 moves from the transmission release position with the third rotator 34 to the transmission release position with the fourth rotator 38 is the diameter of the third rotator 34 and the fourth rotator 38. Or it is good also as an appropriate dimension according to the predetermined distance to which the door 10 is decelerated by the door brake device 30 concerned. That is, the length (dimension along the circumferential direction) of the tooth part (transmission part) 40a from the missing tooth part 40b to the missing tooth part 40b thus displaced corresponds to the predetermined distance.
If the predetermined distance is too long, the closing time tends to be prolonged, and therefore the predetermined distance may be shorter than the door width dimension of the door body 10. For example, the predetermined distance may be set to 1/2 or less of the door width dimension, preferably 1/3 or less of the door width dimension, and is relatively short such as about 50 mm to 300 mm from an arbitrary open position. It may be a distance. In other words, in the door braking device 30, the tooth portion 40a of the driven member 40 is displaced by the fourth rotating body 38 that is rotated when the door body 10 moves through this predetermined distance, and the tooth missing portion 40b is rotated by the third rotation. The body 34 is configured to reach the fourth rotating body 38.

  In this embodiment, the dimension along the circumferential direction of the tooth part 40a of the driven member 40 is made larger than the dimension along the circumferential direction of the missing tooth part 40b. The dimension along the circumferential direction of the missing tooth portion 40b is an appropriate dimension so that the tooth portion 40a of the driven member 40 does not mesh with the tooth portion of the third rotating body 34 or the fourth rotating body 38 corresponding thereto at the transmission release position. It is good. In addition, the site | part (tooth located in the circumferential direction both ends of the missing tooth part 40b) of the tooth part 40a of the driven member 40, and the tooth part of the 3rd rotary body 34 and the 4th rotary body 38 are smooth. The tooth portions 40a of the driven member 40 and the tooth tip portions of the tooth portions of the third rotating body 34 and the fourth rotating body 38 are seen in the directions of the shafts 42, 32, and 36 so as to mesh with each other, and taper toward the tip. It is good also as a pointed shape etc. sharpened so that it may become. Further, due to the collision between the tooth portion 40a side portion of the driven member 40 (the teeth positioned at both ends in the circumferential direction of the tooth missing portion 40b) and the tooth portions of the third rotating body 34 and the fourth rotating body 38. It is good also as a structure which can suppress generation | occurrence | production of damage and abnormal noise. For example, at least the tooth tip portion of the tooth portion 40a of the driven member 40 located at both ends in the circumferential direction of at least the missing tooth portion 40b (or at least the tooth tip portion of the tooth portion of the third rotating body 34 and the fourth rotating body 38). May be formed from a relatively soft soft synthetic resin material. In this case, for example, the driven member 40 is configured such that at least the tooth tip portions of the teeth 40a of the driven member 40 located at both ends in the circumferential direction of the missing tooth portion 40b are soft portions and the other portions are hard portions. May be a resin molded product such as an extrusion molded product or an injection molded product integrally formed by different material molding (simultaneous molding of different materials). Further, in this case, at least the tooth tip portion of the tooth (the tooth located at both ends in the circumferential direction of the missing tooth portion 40b) whose tooth tip portion is a soft portion is not formed in a linear shape parallel to the third shaft 42, You may make it inclined with respect to the 3rd axis | shaft 42, or you may make it mountain shape seeing in the circumferential direction. Further, as a configuration for reducing the impact caused by the collision as described above, at least the third shaft 42 of the first shaft 32, the second shaft 36, and the third shaft 42 is displaced in a direction away from the other shafts. It is good also as the aspect which made it possible. For example, at least the support portion that supports the third shaft 42 is configured to be flexible, or at least the third shaft 42 is slidable in a direction away from other shafts against the biasing of an appropriate biasing member. Or you may. Further, instead of the tooth portion 40a of the driven member 40 and the tooth portions of the third rotating body 34 and the fourth rotating body 38 being spur gear-like tooth portions, a helical gear shape or a helical gear shape is used. It is good also as a tooth part.

In this embodiment, the diameter of the driven member 40 is larger than the diameters of the third rotating body 34 and the fourth rotating body 38. The diameter of the driven member 40 is larger than the diameters of the first rotating body 33 and the second rotating body 37. Further, the driven member 40 is arranged so that a part thereof is positioned in the rail groove 16 of the upper rail 15. In the illustrated example, the third shaft 42 is arranged so as to be located outside the rail groove 16 of the upper rail 15, and the upper end side portion of the driven member 40 is arranged so as to be located in the rail groove 16 of the upper rail 15. When the door 10 moves a predetermined distance from any open position to the closed side, as shown in FIGS. 7C, 8A, and 8B, The rotation of the four rotator 38 is transmitted. Accordingly, the missing tooth portion 40b is displaced from the transmission release position with the third rotator 34 to the transmission release position with the fourth rotator 38. That is, the fourth rotating body 38 is rotated in conjunction with the rotation of the second rotating body 37 rotated by the rotation applying unit 19, and the driven member 40 in which the tooth portion 40 a meshes with the fourth rotating body 38 is rotated. When the door 10 further moves to the closing side, as shown in FIG. 8 (c), the missing tooth portion 40b of the driven member 40 becomes a transmission release position with respect to the fourth rotating body 38. The rotation of the fourth rotating body 38 that rotates in conjunction with the two-rotating body 37 is not transmitted to the driven member 40.
Further, when the door body 10 moves to the closing side in this way, the third rotating body 34 is in a position (meshing position) where rotation is transmitted to the tooth portion 40a of the driven member 40, but the one-way clutch mechanism 35 The third rotating body 34 idles with respect to the first rotating body 33. As a result, the door body is prevented from rotating by the third rotating body 34 or the driven member 40 being rotated by the third rotating body 34 as described above. 10 moves to the closing side.

Further, if the door 10 is moved to the open side from this closed state, the driven member 40 has a fourth tooth portion 40b that is in the fourth state due to the rotation of the third rotating body 34, as shown in FIG. The transmission is released from the transmission release position with the rotary body 38 to the transmission release position with the third rotary body 34. That is, the third rotating body 34 is rotated in conjunction with the rotation of the first rotating body 33 rotated by the rotation applying unit 19, and the driven member 40 in which the tooth portion 40 a meshes with the third rotating body 34 is rotated. Then, if the door body 10 is further moved to the open side, as shown in FIG. 7 (b), the missing tooth portion 40b of the driven member 40 becomes a transmission release position with respect to the third rotating body 34. The rotation of the third rotating body 34 that rotates in conjunction with the rotating body 33 is not transmitted to the driven member 40.
Further, when the door body 10 moves to the open side in this way, the fourth rotating body 38 is in a position (meshing position) where rotation is transmitted to the tooth portion 40a of the driven member 40, but the one-way clutch mechanism 39 The fourth rotating body 38 idles with respect to the second rotating body 37. As a result, the door body is prevented from being rotated by the fourth rotating body 38 or the driven member 40 being rotated by the fourth rotating body 38 as described above. 10 moves to the open side.

Further, if the external force that opens the door 10 that has been moved to the open side and thus in the arbitrary open position is unloaded, the door 10 is self-propelled to the closed side by the automatic closing mechanism 23, and the driven member 40 is rotated by the fourth rotating body 38 as described above.
The braking mechanism 43 is configured to apply a braking force to the displacement of the driven member 40 rotated by the fourth rotating body 38 in this way. In the present embodiment, the braking mechanism 43 is configured to apply a braking force to the rotation of the fifth rotating body 41 that is coaxially and fixedly provided to the driven member 40. With such a configuration, if the fifth rotating body 41 is adapted to the braking mechanism 43, the driven member 40 provided coaxially and fixedly with respect to the fifth rotating body 41 is deformed. It becomes easy and the degree of freedom of design can be improved.
In the present embodiment, the braking mechanism 43 is arranged such that the axial direction is parallel to the direction of the axis (third axis) 42 of the driven member 40, and is rotated in accordance with the rotation of the driven member 40. The body 46 is provided. The braking mechanism 43 is configured to apply a braking force around the axis (damper shaft) 45 of the sixth rotating body 46. With such a configuration, the degree of freedom of the position at which the braking mechanism 43 is provided is improved as compared with the configuration in which the braking mechanism 43 configured to apply a braking force around the third shaft 42 of the driven member 40 is provided. be able to. Accordingly, the braking mechanism 43 can be provided even when it is difficult to secure a space for arranging the braking mechanism 43 on one side of the driven member 40 in the axial direction.

The fifth rotating body 41 is fixed to one side of the driven member 40 in the door thickness direction so as to be rotated with the driven member 40. The fifth rotating body 41 is provided close to one side in the door thickness direction of the driven member 40 so as not to interfere with the third rotating body 34 and the fourth rotating body 38 with which the tooth portion 40a of the driven member 40 is engaged. (See FIG. 2 (b)). In the present embodiment, the sixth rotating body 46 provided in the fifth rotating body 41 and the braking mechanism 43 is a gear (spur gear) that meshes with each other.
The diameter and the number of teeth of the fifth rotator 41 and the sixth rotator 46 are effectively applied to the second rotator 37 via the driven member 40 and the fourth rotator 38 by the braking mechanism 43. Thus, it may be appropriately set according to the braking mechanism 43 or the like. For example, when the sixth rotating body 46 is an accessory of a commercially available braking mechanism 43, the fifth rotating body 41 may correspond to the sixth rotating body 46. In the illustrated example, the fifth rotating body 41 has the same diameter as that of the driven member 40, and the pitch of the tooth portion is larger than the pitch of the tooth portion 40 a of the driven member 40.

In addition, the sixth rotating body 46 has substantially the same diameter as the fifth rotating body 41 and the pitch of the tooth portions is also the same pitch.
The sixth rotating body 46 is disposed at an appropriate position so as to mesh with the fifth rotating body 41 without interfering with the rotating bodies 33, 34, 37, 38 and the driven member 40. In the example shown in the figure, the sixth rotating body 46 is provided so as to be positioned on the first rotating body 33 and the third rotating body 34 that are on the door end side in the door width direction of the fifth rotating body 41. . Further, an example is shown in which the sixth rotating body 46 is provided so that the damper shaft 45 of the sixth rotating body 46 is positioned obliquely below the door end side of the third shaft 42. In addition, an example is shown in which the sixth rotating body 46 is provided so that the entirety thereof is located outside the rail groove 16 of the upper rail 15.

  The braking mechanism 43 includes a damper main body 44 that applies a braking force to a damper shaft 45 on which the sixth rotating body 46 is fixed (unrotatable). Such a damper main body 44 may be one that utilizes the viscous resistance of a working fluid such as oil or the biasing force of a spring as the rotational resistance of the damper shaft 45. In this embodiment, the damper main body 44 is a so-called rotary damper in which a rotor connected to the damper shaft 45 is provided in a cylindrical case in which a working fluid is sealed. Further, as shown in FIG. 2, the damper main body 44 is configured so as to be positioned on one side of the sixth rotating body 46 in the door thickness direction. Further, in the illustrated example, the cylindrical case of the damper main body 44 is assumed to have a dimension along the damper shaft 45 direction larger than that of the sixth rotating body 46 and a diameter smaller than that of the sixth rotating body 46. Yes.

In the present embodiment, the damper main body 44 is applied with a braking force (high torque) when the damper shaft 45 rotates in one direction, while the braking force is extremely small when the damper shaft 45 rotates in the opposite direction. The unidirectional rotary damper is in a state (low torque, free state).
That is, in this embodiment, the damper main body 44 is configured to apply a braking force to the damper shaft 45 that rotates in one direction in conjunction with the driven member 40 rotated by the fourth rotating body 38. That is, the damper main body 44 is rotated in conjunction with the driven member 40 and the fifth rotating body 41 that are rotated when the door 10 moves a predetermined distance from an arbitrary open position to the closed side as described above. It is set as the structure which gives a braking force to rotation of the 6th rotary body 46 (refer FIG.7 (c) and FIG.8 (a)). This braking force serves as a resistance (brake) to the rotation of the second rotating body 37 as described above, and the automatic closing mechanism 23 decelerates the door body 10 that is self-propelled to the closing side.
On the other hand, the damper main body 44 is configured to have a low load with respect to the rotation of the damper shaft 45 that rotates in the opposite direction in conjunction with the driven member 40 rotated by the third rotating body 34. That is, the damper main body 44 responds to the rotation of the driven member 40 rotated when the door 10 is moved to the open side and the sixth rotating body 46 rotated in conjunction with the fifth rotating body 41 as described above. In this case, the load is low (see FIG. 7A).

  The damper main body 44 may be configured such that the braking force (torque, rotational resistance) can be adjusted. With such a configuration, it is possible to adjust the deceleration rate of the door 10 (the time required for the door 10 to move a predetermined distance). As such a damper main body 44, it is good also as what can adjust braking force by adjusting the clearance gap (clearance) between a case and a rotor by rotating the operation part 44a. Further, the damper main body 44 constituting the braking mechanism 43 is not limited to the one configured as described above, and may be various other configurations. For example, the damper main body 44 may be a cylinder-shaped damper (shock absorber) having a rod to be expanded and contracted. In this case, an appropriate link mechanism or rack that converts the rotation of the sixth rotating body 46 or the driven member 40 into a linear motion is provided, and such a linearly movable member is connected to the rod of the damper main body 44. It is good also as an aspect. As the braking mechanism 43 that applies a braking force to the displacement of the driven member 40, various other modifications are possible, and various configurations can be adopted.

  The displacement assist mechanism 47 moves the follower member 40 so that the missing tooth portion 40b becomes a transmission release position with respect to the fourth rotating body 38 with respect to the follower member 40 to which the braking force by the brake mechanism 43 is applied as described above. It is set as the structure made to displace. In the present embodiment, the displacement assist mechanism 47 is configured to be positioned at the transmission release position by rotating the driven member 40 immediately before the transmission release position with the fourth rotating body 38 to the transmission release position side. The displacement assist mechanism 47 includes a displacement assist piece 48 that displaces the engaging protrusion 40c provided on the driven member 40 to rotate the driven member 40 and positions the driven member 40 at the transmission release position. . In the illustrated example, the engagement protrusion 40c is protruded in the direction of the third shaft 42 at a part in the radial direction of the driven member 40 on the side of the non-missing tooth part (the side facing the tooth missing part 40b across the axis). The displacement assisting piece 48 is provided with an engagement recess 48b that engages with the engagement protrusion 40c. In addition, the displacement assisting piece 48 is displaced so as to move the engaging protrusion 40c obliquely downward, which is substantially on the door bottom side, so that the driven member 40 is positioned at the transmission release position.

The displacement assisting piece 48 is rotatable about a piece shaft 48a that is axially aligned in the door thickness direction so that the upper end side that is engaged with the engaging protrusion 40c is displaced in the door width direction ( It can be swung. The one-piece shaft 48a is provided so as to be positioned below the third shaft 42 (directly below in the illustrated example).
The engaging recess 48b is provided at the upper end of the displacement assisting piece 48 so as to receive the engaging protrusion 40c that moves downward with the rotation of the driven member 40. In addition, an inclined guide surface that displaces the upper end side of the displacement assisting piece 48 to the door end side with the contact of the engaging projection 40c moving downward is provided at the upper end of the displacement assisting piece 48. Is provided. In the example shown in the figure, the upper end of the displacement assisting piece 48 is hook-shaped by providing an engaging recess 48b so as to open to the door butt side.

  Further, the displacement assisting mechanism 47 is urged so that the upper end side of the displacement assisting piece portion 48 is displaced toward the side where the engagement protrusion 40c is displaced so that the driven member 40 is in a transmission release position with respect to the fourth rotating body 38. The urging member 49 is provided. In the illustrated example, the displacement assisting piece portion 48 is provided with a lower piece portion extending downward from the piece portion shaft 48a, and the connecting portion 48c of the urging member 49 is provided on the lower piece portion. . Also, in the illustrated example, a tension coil that biases the biasing member 49 so that the lower piece is pulled toward the door tip side so that the upper end side of the displacement assisting piece 48 is biased toward the door bottom side. Although an example of a spring is shown, it is not limited to such a mode, and may be another spring member such as a torsion spring. Although not shown in the drawing, the upper end is displaced toward the door bottom so that the engaging protrusion 40c is in contact with the guide surface in a state where the engaging protrusion 40c is not engaged with the engaging recess 48b. An appropriate stopper is provided to prevent (further rotation of the displacement assisting piece 48).

By the displacement assist mechanism 47 configured as described above, the missing tooth portion 40b of the driven member 40 is positioned at the transmission release position with respect to the fourth rotating body 38 as follows.
As shown in FIGS. 8A and 8B, when the engaging protrusion 40c of the driven member 40 rotated in conjunction with the fourth rotating body 38 comes into contact with the upper end portion of the displacement assisting piece 48, the guide Due to the guide action of the surface, the upper end side of the displacement assisting piece portion 48 is displaced toward the door end side against the urging force of the urging member 49. If the upper end side is displaced in this way, the engagement protrusion 40c can be received in the engagement recess 48b. The engagement protrusion 40c received in the engagement recess 48b in this way is inclined obliquely on the door bottom side so as to be pushed toward the upper end side of the displacement assisting piece portion 48 biased to the door bottom side by the biasing member 49. Displaces downward. Thereby, the missing tooth portion 40b of the driven member 40 is positioned at the transmission release position with respect to the fourth rotating body 38. Further, the engagement protrusion 40c is engaged with the engagement concave portion 48b of the displacement assisting piece portion 48 whose rotation is suppressed by the stopper, so that the rotation of the driven member 40 around the third shaft 42 is suppressed, and the driven member The 40 toothless portions 40b are positioned at the transmission release position with respect to the fourth rotating body 38.

  With such a configuration in which the displacement assist mechanism 47 is provided, when the door 10 moves a predetermined distance from the open position to the closing side and further moves to the closing side, the missing tooth portion 40b of the driven member 40 is moved to the first position. The position can be reliably positioned at the transmission release position with respect to the four-rotor 38. Thereby, it can suppress that the edge part 40b side edge part of the tooth | gear part 40a of the driven member 40 and the 4th rotary body 38 rub against each other, or noise is produced. That is, when the door 10 moves a predetermined distance from the open position to the closed side, the braking force by the braking mechanism 43 is acting on the displaced follower member 40. Therefore, when the door body 10 moves a predetermined distance, the missing tooth portion 40b may not completely reach the transmission release position with the fourth rotating body 38, and may rub against each other or generate abnormal noise. This can be suppressed. Note that such a displacement assist mechanism 47 may not be provided.

Further, when the door body 10 is moved to the open side and the missing tooth portion (non-transmitting portion) 40b of the driven member 40 is displaced to the transmission release position with the third rotating body 34, the missing tooth portion 40b is rotated by the third rotation. It is good also as a structure which provided the displacement auxiliary mechanism which displaces the driven member 40 so that it may become a transmission cancellation | release position with the body 34. FIG. In the present embodiment, since the damper main body 44 of the braking mechanism 43 is unidirectional, when the missing tooth portion (non-transmission portion) 40b of the driven member 40 is displaced to the transmission release position with the third rotating body 34. The braking force by the braking mechanism 43 becomes a low load. For this reason, it is considered that the driven member 40 rotated by the third rotating body 34 is rotated by inertia and the missing tooth portion 40b is easily positioned at the transmission release position with respect to the third rotating body 34. A simple displacement assisting mechanism may not be provided. In addition, the rotation of the follower member 40b around the third shaft 42 is suppressed and the stopper 40 prevents further rotation of the driven member 40 positioned at the transmission release position with the third rotating body 34. It is good also as a structure which provided the holding | maintenance part etc.
Further, the displacement assisting mechanism 47 is not limited to the one configured as described above, and may be various other configurations. Further, the configuration is not limited to the configuration including the displacement assisting piece portion 48 and the biasing member 49 as described above, and the driven member 40 is balanced so that the missing tooth portion 40b becomes a transmission release position with the fourth rotating body 38. It may be a simple configuration. For example, the driven member 40 is provided with a weight portion or the like so that the center of gravity of the driven member 40 is located directly below the third shaft 42 in a state where the missing tooth portion 40b is in a transmission release position with the fourth rotating body 38. It is good also as such an aspect.

The door braking device 30 holds the driven members 40 including the rotating bodies 33, 34, 37, and 38, the fifth rotating body 41, the braking mechanism 43, and the displacement assisting mechanism 47, and the first traveling described above. A base member 31 fixed to the body 28 and the second traveling body 29 is provided.
As shown in FIGS. 1 and 2, the base member 31 has a thin plate shape along the thickness direction in the door thickness direction. The base member 31 holds the first shaft 32, the second shaft 36, the third shaft 42, and the one-piece shaft 48 a, and the driven member 40 including the rotating bodies 33, 34, 37, and 38 and the fifth rotating body 41. The displacement assist mechanism 47 is disposed on one side of the base member 31 in the thickness direction. The braking mechanism 43 is fixed to the base member 31 such that the sixth rotating body 46 is disposed on one side in the thickness direction of the base member 31 and the operation portion 44 a is disposed on the other side in the thickness direction of the base member 31. Has been. The base member 31 is provided with a recess or an insertion hole that receives the damper main body 44 of the braking mechanism 43 so as to pass therethrough.

In addition, fixed base portions 31 a and 31 a that are fixed to the first traveling body 28 and the second traveling body 29 are provided at both ends in the door width direction of the base member 31. In the illustrated example, these fixed pieces 31a, 31a are provided with screws or the like on the lower surfaces of the end portions facing each other of the block-like portions that rotatably hold the rolling elements 28a, 29a of the traveling bodies 28, 29. The example fixed by the fastener is shown.
Further, the base member 31 is provided with a connecting portion 31b of the urging member 49 of the displacement assist mechanism 47 described above.
Further, the lower side portion of the base member 31 is in the first traveling state with respect to the attachment portion 12 at the upper end portion of the door body 10 in a state where the lower side portion is housed in the housing recess 13 of the door body 10 described above. The attached portion 28b of the body 28 is appropriately dimensioned so as to be detachable along the door width direction.
Moreover, in the example of a figure, the example which provided the cover piece part which protrudes toward the door thickness direction one side in the upper end part of the base member 31 is shown. Moreover, the example which provided the opening which the upper end side site | part of the 1st rotary body 33 and the 2nd rotary body 37 was penetrated in this cover piece part is shown.
The base member 31 that holds each member of the door braking device 30 is not limited to the one shown in the figure, and may have various other configurations.

The door body braking device 30 according to the present embodiment and the sliding door device 1 including the door body braking device 1 are configured as described above, so that the door body 10 that self-propels from the arbitrary open position to the closed side can be decelerated. However, the occurrence of malfunction can be suppressed.
That is, the door body braking device 30 is installed in the door body 10 that can be self-propelled on the closing side by the automatic closing mechanism 23, and decelerates the door body 10 that moves a predetermined distance from the arbitrary opening position to the closing side. It is said that. Therefore, the door 10 urged to the closing side by the automatic closing mechanism 23 can be decelerated when moving a predetermined distance from an arbitrary opening position to the closing side. As a result, even when an elderly person, a wheelchair, a bed or the like passes, it takes a long time to pass, so that the door 10 can be touched or the door can be kept open. The need to hold the body 10 can be reduced. Therefore, it becomes suitable as the sliding door device 1 installed in public facilities such as medical facilities and welfare facilities.
In addition, the third rotating body 34 that is linked or idled as described above with respect to the first rotating body 33 and the second rotating body 37 that are rotated by the rotation applying unit 19 that is provided along the traveling track of the door body 10, and The fourth rotating body 38 is provided. Accordingly, the first rotating body 33 and the second rotating body 37 slide on the rotation applying portion 19 provided along the traveling track of the door body 10, or the first rotating body 33 and the second rotating body 37 On the other hand, the sliding of the third rotating body 34 and the fourth rotating body 38 can be suppressed. As a result, wear due to sliding is less likely to occur, and the occurrence of malfunctions due to deterioration over time can be suppressed.

  In addition, as described above, the braking force is applied to the displacement of the driven member 40 that is transmitted and displaced by the rotation of the fourth rotating body 38 that rotates when the door 10 that is in an arbitrary open position moves to the closing side. The brake mechanism 43 to be applied is provided. Therefore, as described above, the braking force of the braking mechanism 43 serves as a resistance (brake) to the rotation of the second rotating body 37 that is interlocked with the rotation of the fourth rotating body 38, and the automatic closing mechanism 23 self-travels on the closing side. The door 10 can be decelerated. That is, according to this embodiment, the speed of the door 10 that moves the predetermined distance to the closed side can be reduced from the state in which the door 10 is in any open position. Thereby, compared with what makes it possible to decelerate only a predetermined distance from a fully open position, the door 10 which moves a predetermined distance to the closing side can be decelerated without having to fully open, and usability can be improved. Further, if the door 10 moves a predetermined distance to the closing side, the braking force by the braking mechanism 43 is unloaded, so that the entire movement trajectory of the door 10 moving from the fully open position (open position) to the closed position is applied. It is possible to close quickly compared with the case of slowing down. Further, as described above, the distance that the toothless portion 40b of the driven member 40 moves from the transmission release position with the third rotating body 34 to the transmission release position with the fourth rotating body 38 corresponds to a predetermined distance. . Therefore, a predetermined distance that is decelerated by the braking mechanism 43 can be set by appropriately setting the moving distance of the toothless portion 40b.

  In the present embodiment, an example is shown in which the fifth rotating body 41 that meshes with the sixth rotating body 46 of the braking mechanism 43 is provided coaxially and fixedly on the driven member 40. For example, an intermediate rotating body (idler gear) that meshes with the rotating body 46 and the fifth rotating body 41 may be further provided. Alternatively, the sixth rotating body 46 of the braking mechanism 43 and the tooth portion 40a of the driven member 40 may be engaged with each other without providing the fifth rotating body 41. In this case, the braking force of the braking mechanism 43 may not be temporarily applied when the missing tooth portion 40b of the driven member 40 is in a transmission release position with respect to the sixth rotating body 46.

Next, another embodiment according to the present invention will be described with reference to the drawings.
9 and 10 are diagrams schematically illustrating an example of a door brake device according to the second embodiment and a sliding door device including the door brake device.
Note that differences from the first embodiment will be mainly described, and the same components will be denoted by the same reference numerals, and description thereof will be omitted or briefly described. Also, description of similar operations and actions will be omitted or briefly described.

  The door braking device 30A according to the present embodiment and the sliding door device 1A including the door braking device 1A are mainly different from the first embodiment in the configuration of the driven member 40A. In the present embodiment, the driven member 40 </ b> A is arranged so that the entirety thereof is positioned in the rail groove 16 of the upper rail 15. The driven member 40 </ b> A is positioned between a third rotating body 34 provided coaxially with the first rotating body 33 and a fourth rotating body 38 provided coaxially with the second rotating body 37. It is set as the structure provided in. In the illustrated example, the third shaft 42A of the driven member 40A is provided so as to be positioned at substantially the same height as the first shaft 32 and the second shaft 36. However, the first shaft 32 and the second shaft are illustrated. It is good also as a structure provided so that it may be located in the downward side or the upper side rather than 36. Further, in the illustrated example, the diameter of the follower member 40A is smaller than that of the first embodiment and smaller than that of the third rotating body 34 and the fourth rotating body 38. An appropriate diameter may be used depending on the predetermined distance.

  In the present embodiment, the braking mechanism 43A is configured to apply a braking force around the third shaft 42A of the driven member 40A without providing the fifth rotating body 41 and the sixth rotating body 46 as described above. Yes. With such a configuration, the structure can be simplified and made compact. Further, the third shaft 42 </ b> A of the driven member 40 </ b> A is used as the damper shaft of the damper main body 44. That is, the damper main body 44 of the braking mechanism 43A is configured to directly apply a braking force to the displacement of the driven member 40A that is displaced by the rotation of the fourth rotating body 38 being transmitted.

In the present embodiment, the door braking device 30 </ b> A is arranged so that the entirety thereof is positioned in the rail groove 16 of the upper rail 15. That is, the vertical dimension of the door braking device 30A is smaller than that of the first embodiment. With such a configuration, the door braking device 30A can be made inconspicuous effectively. Further, the gap between the upper end surface of the door 10A and the upper rail 15 can be reduced without providing the housing recess 13 (see FIG. 1) as described above at the upper end of the door 10A. In the case of such a configuration, depending on the configuration of the damper main body 44, an opening is formed in the side wall portion 18 so that the damper main body 44 and the side wall portion 18 (see FIG. 5A) of the upper rail 15 do not interfere with each other. It may be provided or the upper rail 15 may be deformed.
Further, in the illustrated example, the base member 31A is not provided with a portion that protrudes downward, but a lower plate portion that protrudes toward the door thickness direction is provided at the lower end portion of the base member 31A. The example which provided fixed piece part 31Aa and 31Aa in the door width direction both ends is shown.
In the present embodiment, the above-described displacement assist mechanism 47 may be provided. In addition, the above-described missing tooth portion 40b is a stopper that suppresses further rotation of the driven member 40A positioned at the transmission release position with respect to the third rotating body 34, and the rotation of the driven member 40A around the third shaft 42A is suppressed. It is good also as a structure which provided the holding | maintenance part etc. which do.

Also in the door braking device 30A configured as described above, as shown in FIG. 10, the door 10A (see FIG. 9A) that moves a predetermined distance from an arbitrary open position to the closing side is decelerated. be able to.
That is, as described above, when the door body 10A is moved to the open side, the rotation of the third rotating body 34 is transmitted and the driven member 40A rotates as shown in FIGS. 10 (a) and 10 (b). For this rotation, the braking force by the braking mechanism 43A becomes a low load.
When the door 10A moves from the arbitrary open position to the closed side by a predetermined distance, as shown in FIGS. 10C and 10D, the rotation of the fourth rotating body 38 is transmitted and rotates. The braking force by the braking mechanism 43A is applied to 40A. Thereby, deceleration of 10 A of doors which move predetermined distance to the closing side is made | formed.
The door braking device 30A according to the present embodiment configured as described above and the sliding door device 1A including the same also have the same effects as those of the first embodiment.

In each of the above embodiments, the door body braking devices 30 and 30A are fixed so as to be bridged between the first traveling body 28 and the second traveling body 29 provided on the upper end side of the door bodies 10 and 10A. Although shown, it is not limited to such a mode. For example, the door body braking devices 30 and 30A may be fixed to the traveling body (first traveling body) 28 connected to the upper end of the door body 10 or 10A without the second traveling body 29, It is good also as an aspect etc. which fixed to the upper end side of the body 10 and 10A via the appropriate connection fixing | fixed part.
Further, in each of the above embodiments, an example in which at least the first rotating body 33 and the second rotating body 37 of the door braking devices 30 and 30 </ b> A are arranged so as to be positioned in the rail groove 16 of the upper rail 15. However, the present invention is not limited to such a mode. For example, the first rotating body 33 and the second rotating body 37 may be configured such that part or all of the first rotating body 33 and the second rotating body 37 are positioned outside the rail groove 16 of the upper rail 15.

Moreover, in each said embodiment, the example which shall rotate the 1st rotary body 33 and the 2nd rotary body 37 of the door body braking device 30 and 30A by the rotation provision part 19 provided in the upper rail 15 is shown. However, the present invention is not limited to such a mode. The first rotating body 33 and the second rotating body 37 may be rotated by a rotation imparting unit 19 provided on the upper frame 4 different from the upper rail 15 or an appropriate bracket. In this case, the door braking devices 30 and 30A may be appropriately modified.
Moreover, in each said embodiment, although the door body braking device 30 and 30A was set as the structure installed in the upper end side of the door bodies 10 and 10A, it is installed in the lower end side of the door bodies 10 and 10A. It is good also as a structure to be. In this case, it is good also as a structure which provided the rotation provision part 19 in the appropriate place, such as the floor surface 3 side. Further, in this case, instead of the upper suspension type provided with the upper rail 15 for supporting the doors 10 and 10A in suspension, the lower load type provided with the lower rails for receiving the load of the doors 10 and 10A, It is good also as a structure etc. which provided the rotation provision part 19 in this lower rail.

In each of the above-described embodiments, the driven members 40 and 40A are gears in which a tooth portion 40a constituting a transmission portion and a missing tooth portion 40b constituting a non-transmission portion are provided in the circumferential direction. It is not limited to such an aspect. For example, it may be a rack that is displaced linearly, or may have a configuration in which a high friction part that constitutes the transmission part and a notch-like concave part that constitutes the non-transmission part are provided. In this case, the 3rd rotary body 34 and the 4th rotary body 38 should just be made to respond | correspond to the driven members 40 and 40A, and are good also as a friction roller etc. instead of making it a gearwheel. Further, when the driven members 40 and 40A are displaced in a linear motion state, a mechanism for slidably holding the driven members 40 and 40A may be provided. In this case, the braking mechanisms 43 and 43A may be appropriately modified as necessary.
In each of the above embodiments, the third rotating body 34 is provided coaxially with the first rotating body 33, and the fourth rotating body 38 is provided coaxially with the second rotating body 37. It is not restricted to such an aspect. For example, the third rotating body 34 is directed to the first rotating body 33 and the fourth rotating body 38 is directed to the second rotating body 37 by various transmission modes such as gear transmission, friction transmission, and winding transmission. It is good also as an aspect provided so that interlocking was possible.

Moreover, although each said embodiment showed the example which provided the single rack which the 1st rotary body 33 and the 2nd rotary body 37 mesh as the rotation provision part 19, the 1st rotary body 33 and the 2nd rotary body are shown. It is good also as an aspect which provided two racks which 37 each mesh | engage as the rotation provision part 19. FIG.
Moreover, it may replace with the aspect which used the 1st rotary body 33 and the 2nd rotary body 37 as the gearwheel, and is good also as a friction roller. In this case, the rotation imparting part 19 may have a high friction part.
Moreover, in each said embodiment, the example which made the axial direction of each axis | shaft 32, 36, 42, 42A of each rotary body 33, 34, 37, 38 and driven member 40, 40A a direction along a door thickness direction is shown. However, at least one of these axial directions may be a vertical direction or a direction along the door width direction. In this case, the position where the rotation imparting portion 19 is provided, the base members 31, 31A for holding the rotary bodies 33, 34, 37, 38 and the shafts 32, 36, 42, 42A of the driven members 40, 40A, and the rotary bodies. The meshing mode (interlocking mode) of 33, 34, 37, 38 and the driven members 40, 40A may be appropriately modified. The specific configuration of each member of the door brake devices 30 and 30A according to the above embodiments is not limited to the above configuration, and various other modifications are possible. Moreover, in the above-described example, the door body braking devices 30 and 30A according to the above embodiments have been described as being installed on the door bodies 10 and 10A of the sliding door devices 1 and 1A according to the above embodiments. It is not restricted to a certain aspect. The door body braking devices 30 and 30A according to each of the above embodiments may be installed in another door body that can be self-propelled on the closing side by the automatic closing mechanism 23. For example, the door body braking devices 30 and 30A according to the above embodiments may be retrofitted to existing door bodies.

DESCRIPTION OF SYMBOLS 1,1A Sliding door apparatus 10,10A Door 15 Upper rail 16 Rail groove 19 Rotation imparting part 23 Automatic closing mechanism 28 1st traveling body 29 2nd traveling body 30, 30A Door body braking device 33 1st rotating body 34 3rd rotation Body 35 one-way clutch mechanism 37 second rotating body 38 fourth rotating body 39 one-way clutch mechanism 40, 40A driven member 40a tooth portion (transmitting portion)
40b tooth missing part (non-transmission part)
41 Fifth rotating body 43, 43A Braking mechanism 45 Damper shaft (axis)
46 6th rotating body 47 Displacement assist mechanism

Claims (11)

A door body braking device that is installed in a door body that is capable of self-propelled on the closing side by an automatic closing mechanism and decelerates the door body moving a predetermined distance from an arbitrary opening position to the closing side,
A first rotating body and a second rotating body that are rotated by a rotation applying unit provided along the traveling track of the door body;
A third rotating body that is rotated in conjunction with the first rotating body when the door is moved to the open side, and is idled by a one-way clutch mechanism when the door is moved to the closed side;
A fourth rotating body that rotates in conjunction with the second rotating body when the door body moves to the closed side, and idles by a one-way clutch mechanism when the door body moves to the open side;
A transmission unit that transmits rotation of the third rotating body and the fourth rotating body, a non-transmission unit that releases transmission of rotation of the third rotating body and the fourth rotating body, and the door. When the body moves the predetermined distance from the open position, the rotation of the fourth rotating body is transmitted, and the non-transmitting portion transmits to the fourth rotating body from the transmission release position with the third rotating body. A driven member configured to be displaced to a release position;
A braking mechanism for applying a braking force to the displacement of the driven member displaced by the rotation of the fourth rotating body;
A door body braking device comprising: In claim 1,
The first rotating body and the second rotating body are gears that are provided side by side at intervals in the moving direction of the door body and mesh with a single rack that constitutes the rotation applying portion. A door brake device. In claim 2,
The third rotating body is provided coaxially with the first rotating body, the fourth rotating body is provided coaxially with the second rotating body, and the third rotating body and the fourth rotating body are: The door braking device, wherein the door braking device is smaller in diameter than the first rotating body and the second rotating body so as not to contact the rack. In any one of Claims 1 thru | or 3,
The driven member is a gear provided in the circumferential direction with a tooth portion constituting the transmission portion and a missing tooth portion constituting the non-transmission portion,
The third body and the fourth body are gears that mesh with the teeth of the driven member. In claim 4,
A fifth rotating body is provided coaxially and fixedly with respect to the driven member, and the braking mechanism is configured to apply a braking force to the rotation of the fifth rotating body. A door brake device. In claim 4 or 5,
The braking mechanism includes a sixth rotating body that is arranged so that an axial direction thereof is parallel to the axial direction of the driven member, and is rotated along with the rotation of the driven member, around the axis of the sixth rotating body. A door braking device characterized in that a braking force is applied. In any one of Claims 1 thru | or 6,
When the door moves the predetermined distance from the open position to the closed side and the non-transmission part of the driven member is displaced to a transmission release position with the fourth rotating body, the non-transmission part is A door braking device comprising a displacement assisting mechanism for displacing the driven member so as to be in a transmission release position with respect to a four-rotation body.   A door body, an automatic closing mechanism for self-propelling the door body on the closing side, the door body braking device according to any one of claims 1 to 7, and a traveling track of the door body. A sliding door device, comprising: a rotation applying unit that rotates the first rotating body and the second rotating body of the door braking device. In claim 8,
It has an upper rail that supports the door in a suspended state,
The door brake device is configured to be installed on an upper end side of the door so that the first rotating body and the second rotating body are rotated by the rotation applying unit provided on the upper rail. A sliding door device characterized by that. In claim 9,
The upper rail is provided with a rail groove that extends in the longitudinal direction and opens in one direction, and is arranged so that at least the first rotating body and the second rotating body of the door braking device are located in the rail groove. A sliding door device characterized by being configured. In claim 9 or 10,
On the upper end side of the door body, a first traveling body and a second traveling body that travel while being guided and supported by the upper rail are provided at intervals in the longitudinal direction of the upper rail,
The door body braking device is configured to be fixed and held so as to be bridged between the first traveling body and the second traveling body.

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