JP6975938B2 - Gear device - Google Patents

Description

The present invention relates to a gear device including a plurality of gears.

Conventionally, a gear device including a plurality of gears has been known as a mechanism for transmitting rotation. In such a gear device equipped with an intermittent gear provided with a missing tooth portion, when the meshing state is changed from the disengaged state to the meshing state, the tooth tips interfere with each other due to misalignment or the like, resulting in smooth meshing. It is conceivable that there will be a situation where it is not done.
For example, in Patent Document 1 below, a gear interlocking with a sprocket engaged with a roller chain, a missing tooth gear having a tooth portion that meshes with the gear, and a braking gear that meshes with the tooth portion of the missing tooth gear are described. The provided automatic closing door is disclosed. Further, the automatic closing door is configured to be provided with a position regulating spring that regulates the position of the braking gear to a position where it can easily mesh with the missing tooth gear.

Japanese Unexamined Patent Publication No. 11-131900

However, in the case of the above configuration, since the spring for position regulation comes into contact with the tooth portion of the braking gear, it is considered that the tooth portion is worn and abnormal noise is generated, and further improvement is desired.

The present invention has been made in view of the above circumstances, and provides a gear device capable of smoothly meshing an intermittent gear and a gear that meshes with the intermittent gear, while suppressing wear of a tooth portion and generation of abnormal noise. The purpose is to do.

In order to achieve the above object, the gear device according to the present invention has a first gear that is allowed to rotate in at least one direction with respect to the shaft, and a tooth portion that meshes with the first gear and a defect that the meshing is released. The intermittent gear provided with the tooth portion, the device main body provided with the first gear and the intermittent gear, and a plurality of suctions provided on the first gear side at equal intervals in the circumferential direction of the first gear. A portion and a magnet provided on the main body side of the apparatus so as to attract one of the plurality of attracted portions are provided, and these magnets and the attracted portion are engaged with the intermittent gear. The first gear is regulated so that the released tooth portion of the first gear is in a position where it can mesh with the tooth portion of the intermittent gear, and the number of the attracted portions is the number of the first gear. wherein the two or more 1 der Rukoto integral fraction of the number of teeth.
In order to achieve the above object, the gear device according to the present invention has a first gear that is allowed to rotate in at least one direction with respect to the shaft, and a tooth portion that meshes with the first gear and a defect that the meshing is released. The intermittent gear provided with the tooth portion, the device main body provided with the first gear and the intermittent gear, the magnet provided on one of the first gear and the device main body, and the magnet provided on the other. The attracted portion is provided with a suctioned portion, and the magnet and the attracted portion are located at a position where the tooth portion of the first gear whose meshing with the intermittent gear is disengaged can be meshed with the tooth portion of the intermittent gear. The first gear is regulated so as to be such that a second gear that meshes with the meshing target is provided on one side in the axial direction of the first gear, and the first gear and the second gear are provided. One of the gears is provided with an axially projecting engaging protrusion, and the other is engaged to accept the engaging protrusion so as to allow rotation of the first gear with respect to the second gear. It is characterized in that a gear is provided.

The gear device according to the present invention has the above-mentioned configuration, so that the intermittent gear and the gear that meshes with the intermittent gear can be smoothly meshed with each other, and at the same time, the wear of the tooth portion and the generation of abnormal noise can be suppressed. can.

(A) is a schematic exploded perspective view schematically showing an example of a gear device according to an embodiment of the present invention, and (b) is a schematic perspective view schematically showing an example of a first gear included in the gear device. Is. It is a partial fracture schematic front view schematically showing an example of the gear device and the sliding door device provided with the same gear device. It is a schematic front view of a partial fracture corresponding to FIG. (A) is a schematic vertical cross-sectional view of a partial break corresponding to the YY line arrow in (b), and (b) is a partial break schematic cross section corresponding to the XX line arrow view in FIG. It is a top view. (A) is a schematic plan view of the gear device, and (b) is a schematic bottom view of the gear device. It is the partial fracture schematic front view which omitted the part corresponding to the Z part in FIG. It is the partial fracture schematic front view which omitted the part corresponding to FIG. It is the partial fracture schematic front view which omitted the part corresponding to FIG. An example of a gear device according to another embodiment of the present invention and an example of a sliding door device provided with the same are schematically shown. FIG. , Is a schematic plan view corresponding to FIG. 5A.

Hereinafter, embodiments of the present invention will be described with reference to the drawings.
In some figures, some of the detailed reference numerals attached to other figures are omitted.
Further, in each of the following embodiments, the vertical direction and the like will be described with reference to the state in which the sliding door device incorporating the gear device according to each embodiment is installed.

1 to 8 are diagrams schematically showing an example of a gear device according to the first embodiment and a sliding door device provided with the gear device.
As shown in FIG. 6, the gear device 30 according to the present embodiment has a first gear 34, and an intermittent gear 40 provided with a tooth portion 40a that meshes with the first gear 34 and a tooth portion 40b that is disengaged. And an apparatus main body 31 provided with these first gears 34 and intermittent gears 40. In the present embodiment, as shown in FIGS. 2 and 3, the gear device 30 is installed in a door body 10 capable of self-propelling on the closing side by the automatic closing mechanism 23, and the sliding door device 1 is provided by the door body 10. It is supposed to constitute. Further, an example in which the gear device 30 is installed on the upper end side of the door body 10 is shown. Further, the gear device 30 is configured to function as a door body braking device that decelerates the door body 10 that moves a predetermined distance from an arbitrary open position to the closed side. The specific configuration of the gear device 30 will be described later.

The sliding door device 1 is not limited to a residence or the like, but may be installed in a public facility such as a medical facility or a welfare facility, a commercial facility, various stores, a factory, or the like, and is not limited to indoors. , It may be installed outdoors.
In the illustrated example, the sliding door device 1 includes an upper rail 15 that suspends and supports the door body 10, as shown in FIGS. 2 to 4. Further, the sliding door device 1 is configured to include a single door body 10 arranged in a one-sided manner. In the illustrated example, the door body 10 is provided so as to open and close an opening 9 which is an entrance / exit provided in the wall body 2 such as a partition wall, and is housed in a sleeve wall provided in a part of the wall body 2. An example of building with a sleeve wall is shown. Further, an example is shown in which the door body 10 is built in a door frame provided with an upper frame 4, a vertical frame 5 on the front end side, a vertical frame 6 on the door tail side, and an intermediate vertical frame (middle vertical) 7. Further, in the figure, an example is shown in which the upper side of the opening 9 and both sides in the opening width direction are partitioned 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 partitioned by a lower frame, but in the illustration, it is partitioned by a floor surface 3.

Further, in the illustrated example, the sliding door device 1 is provided with cover members 50, 50 that cover both sides of the upper rail 15 in the rail width direction (direction along the door thickness direction), respectively. These cover members 50, 50 have a long strip-like shape (curtain plate-like shape) in the longitudinal direction of the rail, and are arranged so as to cover the gap between the upper frame 4 to which the upper rail 15 is to be mounted and the door body 10. NS.
The door body 10 has a substantially rectangular flat plate shape. Further, as shown in FIGS. 2, 3 and 4 (b), pull tabs 14 and 14 are provided on both sides of the door end side end of the door body 10 in the door thickness direction. In the illustrated example, the door body 10 is arranged so that the portion on the door end side including the pull tabs 14 and 14 protrudes toward the opening 9 side from the inner side surface facing the opening 9 side of the intermediate vertical frame 7 in the fully open state. It is supposed to be configured. That is, an example is shown in which the house 10 is built so as to form a so-called leftover body. Further, as shown in FIG. 6, the upper end portion of the door body 10 is provided with a storage recess 13 for receiving a lower portion of the gear device 30 described later.

Further, as shown in FIG. 4, the sliding door device 1 includes a lower end guide member 8 that guides the lower end side of the door body 10. In the illustrated example, a concave groove 11 that opens downward is provided at the lower end 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 structure. The door body 10 is not limited to the mode in which the door body 10 is built in the sleeve wall as shown in the figure, but may be built in the door pocket or the outset. Further, the present invention is not limited to the mode in which a single door body 10 is provided in a one-sided pull shape, and may be a mode in which a plurality of door bodies 10 are provided in a draw shape or a pull shape. In this case, at least one door body 10 may be provided with the automatic closing mechanism 23 and the gear device 30, which will be described later. Further, the opening 9 is not limited to the entrance / exit and the like, and may be an opening 9 for various storages, windows, and the like. Further, the door body 10 decelerated by the gear device 30 may be a partition body arranged in a partition shape, a screen-shaped one, or the like, or may have various configurations.

The upper rail 15 has a long shape 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 guide on the upper end side of the door body 10 moving between the closed position and the fully open position can be guided, for example, the door between the pair of vertical frames 5 and 6. The dimensions correspond to the dimensions along the width direction.
Further, 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 illustration. As shown in FIG. 4A, the upper rail 15 includes a top wall portion 17 for partitioning the upper side of the rail groove 16 on the groove bottom side, and both side wall portions 18 and 18 for partitioning both sides in the groove width direction. , Are provided. Further, guide piece portions 18a and 18a are provided at the lower ends of the side wall portions 18 and 18 so as to project in directions facing each other.

As shown in FIGS. 2, 3 and 4 (a), guided members 20 and 27 are provided on the upper end side of the door body 10 so as to be guided and supported by the upper rail 15. Further, the guided members 20 and 27 include a door end side guided member 20 provided on the door end side of the door body 10 and a door tail side guided member 27 provided on the door end side of the door body 10. It is said to be composed.
The door tail side guided member 27 has a configuration in which the first traveling body 28 and the second traveling body 29, which are guided and supported by the upper rail 15 and travel, are provided at intervals in the longitudinal direction of the upper rail 15. .. Further, the gear 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. As shown in FIGS. 4A and 5, the first traveling body 28 and the second traveling body 29 rotate on the guide pieces 18a and 18a of the upper rail 15 about an axis along the door thickness direction. Rolling bodies (rollers) 28a, 28a, 29a, 29a are provided on both sides in the door thickness direction.

Further, as shown in FIGS. 1A and 6, the first traveling body 28 is provided so as to open at the upper end portion of the door end side of the door body 10 toward the outer side and the upper side in the door width direction. It is configured to be provided with a mounted portion 28b to be mounted on the recessed mounting portion (cup portion) 12. Further, the second traveling body 29 is arranged on the door end side of the first traveling body 28 and is connected to the first traveling body 28 via a gear device 30 described later.
The door end side guided member 20 has a configuration in which a first traveling body 21 and a second traveling body 22 that are guided and supported by the upper rail 15 and travel are provided at intervals in the longitudinal direction of the upper rail 15. .. Further, the door end side guided member 20 is provided with an automatic closing mechanism 23 and a buffering mechanism 25 for decelerating the door body 10 moving to the closed position. Similar to the door tail side described above, the first traveling body 21 and the second traveling body 22 are rolling elements (rotating on the guide pieces 18a and 18a of the upper rail 15 around the axis along the door thickness direction). Rollers) are provided on both sides in the door thickness direction.

As shown in FIGS. 2 and 3, the automatic closing mechanism (auto-closing mechanism) 23 includes an urging member 24 that urges the door body 10 in the open position toward the closing side. The urging member 24 may be, for example, a spiral spring or the like. The urging member 24 is in a wound state when the door body 10 is in the closed position, and is in an extended state when the door body 10 is in the open position. In such an extended state, a entanglement force (urging force, elastic restoring force) is generated in the urging member 24, that is, the urging force for moving the door body 10 to the closing side in the automatic closing mechanism 23 is stored. It will be in the state of being done. Further, in this state, if an external force or the like for maintaining the door body 10 in the open position is unloaded, the door body 10 moves to the closed side by the elastic restoring force of the urging member 24. The urging member 24 may be configured to move the door body 10 in the fully open position to the closed position. Further, a catch mechanism or the like for holding the door body 10 in the fully open position against the force of the automatic closing mechanism 23 on the closing side may be provided. The automatic closing mechanism 23 is not limited to the one having the above-mentioned configuration, and other various configurations can be adopted.

The cushioning mechanism 25 is configured to alleviate and absorb the impact between the door end side end of the door body 10 that closes the opening 9 and the door end side vertical frame 5 as the object of contact thereof. As such a cushioning mechanism 25, a cylinder such as an air cylinder which is elongated in the door width direction may be used. Further, the shock absorber 25 is provided with a cylinder body, a rod 26 that expands and contracts in the moving direction of the door body 10 with respect to the cylinder body, and a return portion such as a spring that returns the shortened rod 26 to the extended state. It may be a thing. In such a cushioning mechanism 25, as shown in FIG. 3, when the door body 10 is in the open position, the rod 26 in the extended state is a vertical frame on the door end side of the door end side of the door body 10. It is considered to be in a state of greatly protruding to the 5 side. Further, if the door body 10 is moved to the closed side by the automatic closing mechanism 23, as shown in FIG. 2, the tip end portion of the rod 26 is the end inner wall portion of the upper rail 15 or the door end side vertical frame as the contact target. It abuts on the contact portion such as 5, and is shortened. By shortening the rod 26 in this way, the door body 10 moving to the closed position is decelerated (attenuated) by the so-called air cushioning action due to the compression of the air in the cylinder body.

As shown in FIGS. 1A and 6, the gear device 30 is attracted to a magnet 52 provided on one of the first gear 34 and the device main body 31 and attracted by the magnet 52 provided on the other side. A section 54a and a portion 54a are provided. The magnet 52 and the attracted portion 54a have the first gear 34 so as to be in a position where the tooth portion 34a of the first gear 34 that has been disengaged from the intermittent gear 40 can mesh with the tooth portion 40a of the intermittent gear 40. It is structured to regulate. The first gear 34 is allowed to rotate in at least one direction with respect to the shaft (first shaft) 32. Further, on one side of the first gear 34 in the axial direction, a second gear 33 that meshes with the rack 19 as a meshing target is provided.

Further, the gear device 30 includes a third gear 38 that constitutes another first gear that meshes with the tooth portion 40a of the intermittent gear 40. Further, the gear device 30 includes a magnet 52 provided on one of the third gear 38 and the device main body 31, and a attracted portion 58a provided on the other and attracted by the magnet 52. Similar to the above, the magnet 52 and the attracted portion 54a have a third position such that the tooth portion 38a of the third gear 38 that has been disengaged from the intermittent gear 40 can mesh with the tooth portion 40a of the intermittent gear 40. It is configured to regulate the gear 38. Further, on one side of the third gear 38 in the axial direction, a fourth gear 37 constituting another second gear that meshes with the rack 19 as a meshing target is provided as described above. The specific configurations of the magnets 52 and 52 and the attracted portions 54a and 58a will be described later.

In the intermittent gear 40, when the door body 10 moves from an arbitrary open position to the closed side by a predetermined distance, the rotation of the third gear 38 is transmitted and the missing tooth portion 40b is transmitted from the transmission release position with the first gear 34. It is configured to be displaced to the transmission release position with the third gear 38. Further, the gear device 30 includes a braking mechanism 43 that applies a braking force to the displacement of the intermittent gear 40 that is displaced by transmitting the rotation of the third gear 38. That is, the gear device 30 includes the rotation of the third gear 38 that rotates when the door body 10 which is an arbitrary open position on the way from the closed position to the fully open position moves a predetermined distance to the closed side. The braking force of the braking mechanism 43 is applied to the vehicle via the intermittent gear 40. This braking force becomes a resistance (brake) to the rotation of the fourth gear 37 linked to the rotation of the third gear 38, and the automatic closing mechanism 23 decelerates the self-propelled door body 10 to the closing side. Further, in the present embodiment, when the missing tooth portion 40b of the intermittent gear 40 is displaced to the transmission release position with the third gear 38, the missing tooth portion 40b becomes the transmission release position with the third gear 38. As described above, the displacement assist mechanism 47 that displaces the intermittent gear 40 is provided. The specific configurations of the intermittent gear 40, the braking mechanism 43, and the displacement assist mechanism 47 will be described later.

The second gear 33 and the fourth gear 37 are provided side by side at intervals in the moving direction (door width direction) of the door body 10, and are configured to mesh with a single rack 19. In the present embodiment, the fourth gear 37 is provided so as to be located on the door tail side of the second gear 33.
As shown in FIG. 6, the rack 19 has an elongated shape in the longitudinal direction of the upper rail 15. The rack 19 may be provided so that the second gear 33 and the fourth gear 37 are always meshed with each other when the door body 10 moves between the closed position and the fully open position. In the illustrated example, as shown in FIGS. 4A and 6, the rack 19 is provided so as to be along the lower surface of the top wall portion 17 of the upper rail 15 and so that the tooth portions face downward. There is.

The first gear 34 is coaxially provided with the second gear 33, and the third gear 38 is coaxially provided with the fourth gear 37. The first gear 34 and the third gear 38 are rotatable around shafts (first shaft 32 and second shaft 36) 32 and 36 along the axial direction in the door thickness direction. Further, the first gear 34 and the third gear 38 have a smaller diameter than the second gear 33 and the fourth gear 37 so as not to come into contact with the rack 19. The first gear 34 and the third gear 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 first gear 34 and the third gear 38 (diameters of the tooth tip circles) may be appropriately set so as not to come into contact with the tooth portions of the rack 19. Further, in the present embodiment, the second gear 33 and the fourth gear 37 are gears (spur gears) having the same size and shape, that is, the same diameter and the same number of teeth (same pitch).

The first gear 34 is configured to allow rotation in one direction with respect to the first shaft 32 via the one-way clutch mechanism 35, that is, to idle in one direction. The first gear 34 is rotated around the first shaft 32 in conjunction with the rotation of the second gear 33 when the door body 10 is moved to the open side by the one-way clutch mechanism 35, while the door body 10 is rotated. When moving to the closed side, it spins without being interlocked with the rotation of the second gear 33.
Similar to the above, the third gear 38 is allowed to rotate in the direction opposite to the above with respect to the second shaft 36 via the one-way clutch mechanism 39, that is, in the direction opposite to the above. It is configured to slip. The third gear 38 is rotated around the second shaft 36 in conjunction with the rotation of the fourth gear 37 when the door body 10 is moved to the closed side by the one-way clutch mechanism 39, while the door body 10 is rotated. When moving to the open side, it spins without being interlocked with the rotation of the fourth gear 37.

That is, these one-way clutch mechanisms 35 and 39 are configured to be capable of transmitting rotation in opposite directions to each other. Such a one-way clutch mechanism 35, 39 has an inner ring and an outer ring, and while the rotation of the inner ring rotating in one direction is transmitted to the outer ring, the outer ring idles with respect to the inner ring rotating in the other direction. It is possible to adopt a known configuration that is acceptable. The one-way clutch mechanisms 35 and 39 may be, for example, a cam type or a sprag type. Further, in this case, the first gear 34 and the third gear 38 may be integrally provided on the outer ring of the respective one-way clutch mechanisms 35 and 39, or may be fixed to the outer ring so as not to rotate. Instead of the mode in which the one-way clutch mechanisms 35 and 39 are provided on the first gear 34 and the third gear 38 side, the one-way clutch mechanisms 35 and 39 are provided on the second gear 33 and the fourth gear 37 side. It may be an embodiment.

Further, in the present embodiment, as shown in FIG. 1, one of the first gear 34 and the second gear 33 is provided with an engaging convex portion 35a protruding in the axial direction, and the other is provided with respect to the second gear 33. An engaging recess 33a for receiving the engaging convex portion 35a is provided so as to allow the rotation of the first gear 34. Further, one of the third gear 38 and the fourth gear 37 is provided with an engaging convex portion 39a protruding in the axial direction, and the other is allowed to rotate the third gear 38 with respect to the fourth gear 37. An engaging recess 37a for receiving the engaging convex portion 39a is provided. In the present embodiment, the first gear 34 and the third gear 38 are provided with engaging protrusions 35a and 39a, and the second gear 33 and the fourth gear 37 are provided with engaging recesses 33a and 37a on the other side. It is composed.

As shown in FIGS. 1B and 7, the engaging protrusions 35a and 39a of the first gear 34 and the third gear 38 are provided so as to project toward the second gear 33 and the fourth gear 37. Has been done. Further, the engaging protrusions 35a and 39a are provided at a plurality of positions on each of the first gear 34 and the third gear 38 at intervals in the circumferential direction. In the illustrated example, an example is shown in which two engaging protrusions 35a, 35a, 39a, 39a are provided on each of the first gear 34 and the third gear 38 at equal intervals in the circumferential direction. Further, these engaging convex portions 35a, 35a, 39a, 39a are formed into an annular fan shape having the axes 32, 36 as the center of the axis when viewed in the axial direction. Further, these engaging protrusions 35a, 35a, 39a, 39a are provided on the inner rings of the one-way clutch mechanisms 35, 39 of the first gear 34 and the third gear 38.

The engaging recesses 33a and 37a of the second gear 33 and the fourth gear 37 are provided so as to open toward the first gear 34 and the third gear 38 side. In the present embodiment, the peripheral portions of the second gear 33 and the fourth gear 37 are peripheral to each other so that the engaging protrusions 35a, 35a, 39a, 39a provided on the first gear 34 and the third gear 38 can be accepted. An example is shown in which two engaging recesses 33a, 33a, 37a, 37a are provided at equal intervals in the direction. Further, these engaging recesses 33a, 33a, 37a, 37a are formed into an annular fan shape having the shafts 32, 36 as the center of the axis when viewed in the axial direction. Further, the dimensions of the engaging recesses 33a, 33a, 37a, 37a along the circumferential direction are made larger than the dimensions of the engaging protrusions 35a, 35a, 39a, 39a along the circumferential direction. As a result, the first gear 34 including the one-way clutch mechanism 35 is provided with play on both sides in the circumferential direction with respect to the second gear 33, and the third gear 38 including the one-way clutch mechanism 39 becomes the fourth gear 37. On the other hand, it is provided with play on both sides in the circumferential direction. The dimensions of the engaging recesses 33a, 33a, 37a, 37a and the engaging protrusions 35a, 35a, 39a, 39a along the circumferential direction are half to two teeth with respect to the second gear 33 and the fourth gear 37. The dimensions may be appropriate so as to allow the rotation of the first gear 34 and the third gear 38 by about a minute.

As shown in FIGS. 1A and 6A, the intermittent gear 40 is rotatably provided around the third axis 42 along the axial direction in the door thickness direction. The intermittent gear 40 may be rotatably held with respect to a fixedly provided third shaft 42, and may be fixedly held with a third shaft 42 rotatably held with respect to an appropriate bearing portion. It may be provided. Further, the third shaft 42 is centered between the first shaft 32 and the second shaft 36 so that the tooth portions 40a of the intermittent gear 40 mesh with the tooth portions 34a and 38a of the first gear 34 and the third gear 38. It is provided so as to be located directly under the part. Further, the intermittent gear 40 is provided so as to mesh with the first gear 34 and the third gear 38 and not to interfere with the second gear 33 and the fourth gear 37.
The tooth portion 40a and the missing tooth portion 40b of the intermittent gear 40 are in a state where the tooth portion 40b is located on one of the first gear 34 and the third gear 38, that is, the intermittent gear 40 is transmitted to one of them. The tooth portion 40a is provided so as to mesh with the other side in the released position. That is, the tooth portion 40a and the tooth portion 40b are provided so that the missing tooth portion 40b is located on both the first gear 34 and the third gear 38 and the intermittent gear 40 is not in the transmission release position with respect to both. There is.

The distance that the missing tooth portion 40b of the intermittent gear 40 moves from the transmission release position with the first gear 34 to the transmission release position with the third gear 38 is the diameter of the first gear 34 and the third gear 38 and the gear. The size may be appropriate according to a predetermined distance for decelerating the door body 10 by the device 30. That is, the dimension along the circumferential direction of the tooth portion 40a from the tooth missing portion 40b to the tooth missing portion 40b displaced in this way corresponds to the predetermined distance.
If the predetermined distance is too long, the closing time tends to be long, so that the predetermined distance may be shorter than the door width dimension of the door body 10. For example, this predetermined distance may be 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. That is, in the gear device 30, the tooth portion 40a of the intermittent gear 40 is displaced by the third gear 38 that is rotated when the door body 10 moves this predetermined distance, and the tooth portion 40b is displaced from the first gear 34 to the first gear 34. It is configured to reach the three gears 38.

In the present embodiment, the dimension along the circumferential direction of the tooth portion 40a of the intermittent gear 40 is larger than the dimension along the circumferential direction of the missing tooth portion 40b. The dimensions of the missing tooth portion 40b along the circumferential direction are appropriately set so that the tooth portions 40a of the intermittent gear 40 do not mesh with the corresponding tooth portions 34a and 38a of the first gear 34 or the third gear 38 at the transmission release position. It may be a dimension. Further, in the present embodiment, the diameter of the intermittent gear 40 is made larger than the diameter of the first gear 34 and the third gear 38. Further, the diameter of the intermittent gear 40 is made larger than the diameter of the second gear 33 and the fourth gear 37.
The intermittent gear 40 is a third gear 38 that is rotated in conjunction with the rotation of the fourth gear 37 rotated by the rack 19 when the door body 10 moves from an arbitrary open position to the closed side by a predetermined distance. The tooth portion 40a is engaged and rotated. As a result, the missing tooth portion 40b is displaced from the transmission release position with the first gear 34 to the transmission release position with the third gear 38. Then, when the door body 10 is further moved to the closed side, the missing tooth portion 40b of the intermittent gear 40 is in the transmission release position with the third gear 38, so that the third gear rotates in conjunction with the fourth gear 37. The rotation of the gear 38 is not transmitted to the intermittent gear 40. Further, when the door body 10 moves to the closed side in this way, the first gear 34 is at a position (meshing position) at which the rotation is transmitted to the tooth portion 40a of the intermittent gear 40, but the one-way clutch mechanism 35 causes the first gear 34 to be the position. The 1st gear 34 slips with respect to the 2nd gear 33.

Further, if the door body 10 is moved from the closed state to the open side, the intermittent gear 40 has the tooth portion 40a on the first gear 34 which is rotated in conjunction with the rotation of the second gear 33 rotated by the rack 19. It meshes and rotates. As a result, the missing tooth portion 40b is displaced from the transmission release position with the third gear 38 to the transmission release position with the first gear 34. Then, if the door body 10 is further moved to the open side, the missing tooth portion 40b of the intermittent gear 40 becomes the transmission release position with the first gear 34, so that the first gear that rotates in conjunction with the second gear 33 The rotation of 34 is not transmitted to the intermittent gear 40. Further, when the door body 10 moves to the open side in this way, the third gear 38 is at a position (meshing position) at which the rotation is transmitted to the tooth portion 40a of the intermittent gear 40, but the one-way clutch mechanism 39 causes the third gear 38 to be the position. The 3rd gear 38 slips with respect to the 4th gear 37.
Further, if the external force that opens the door body 10 that has been moved to the open side and is set to an arbitrary open position is removed, the door body 10 is self-propelled to the closed side by the automatic closing mechanism 23, and the intermittent gear is also provided. The 40 is rotated by the third gear 38 as described above.

The braking mechanism 43 is configured to apply a braking force to the displacement of the intermittent gear 40 rotated by the third gear 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 gear 41 provided coaxially and fixedly with respect to the intermittent gear 40. Further, in the present embodiment, the braking mechanism 43 is arranged so that the axial direction is parallel to the axis (third axis) 42 direction of the intermittent gear 40, and a sixth gear 46 that meshes with the fifth gear 41 is provided. It is composed. Further, the braking mechanism 43 is configured to apply a braking force around the shaft (damper shaft) 45 of the sixth gear 46.
The fifth gear 41 is fixed to one side of the intermittent gear 40 in the door thickness direction so as to rotate with the intermittent gear 40. The fifth gear 41 is provided close to one side of the intermittent gear 40 in the door thickness direction so that the tooth portions 40a of the intermittent gear 40 do not interfere with the first gear 34 and the third gear 38 that mesh with each other.

The sixth gear 46 is arranged at an appropriate position so as to mesh with the fifth gear 41 without interfering with the gears 33, 34, 37, 38 and the intermittent gear 40.
The diameter and number of teeth of the fifth gear 41 and the sixth gear 46 are set so that the braking force by the braking mechanism 43 is effectively applied to the fourth gear 37 via the intermittent gear 40 and the third gear 38. It may be appropriately set according to 43 or the like.
The braking mechanism 43 includes a damper main body 44 (see FIG. 5) that applies a braking force to a damper shaft 45 provided with a fixed (non-rotatable) sixth gear 46. As such a damper main body 44, a viscous resistance of a working fluid such as oil, a urging force of a spring, or the like may be used for the rotational resistance of the damper shaft 45. Further, the damper main body 44 applies a braking force (high torque) when the damper shaft 45 rotates in one direction, while the braking force becomes extremely small when the damper shaft 45 rotates in the opposite direction (low torque, It is a one-way rotary damper that is in a free state).

That is, in the present embodiment, the damper main body 44 is interlocked with the intermittent gear 40 and the fifth gear 41 that are rotated when the door body 10 moves from an arbitrary open position to the closed side by a predetermined distance as described above. A braking force is applied to the rotation of the sixth gear 46 to be rotated. As described above, this braking force becomes a resistance (brake) to the rotation of the fourth gear 37, and the automatic closing mechanism 23 decelerates the self-propelled door body 10 on the closing side.
On the other hand, the damper main body 44 is opposed to the rotation of the intermittent gear 40, which is rotated when the door body 10 is moved to the open side, and the sixth gear 46, which is rotated in conjunction with the fifth gear 41, as described above. It is configured to have a low load.
The damper body 44 may be capable of adjusting the braking force (torque, rotational resistance). As such a damper main body 44, the clearance between the case and the rotor may be adjusted by rotating the operation unit 44a (see FIG. 5) so that the braking force can be adjusted. Further, the damper main body 44 constituting the braking mechanism 43 is not limited to the one having the above-mentioned configuration, and may have various other configurations.

The displacement assist mechanism 47 displaces the intermittent gear 40 so that the tooth gap 40b is in the transmission release position with the third gear 38 with respect to the intermittent gear 40 to which the braking force applied by the braking mechanism 43 is applied as described above. (See FIG. 6). In the present embodiment, the displacement assist mechanism 47 is configured to rotate the intermittent gear 40 immediately before the transmission release position with the third gear 38 toward the transmission release position and position it at the transmission release position. Further, the displacement assisting mechanism 47 is configured to include a displacement assisting piece portion 48 in which the engaging protrusion 40c provided on the intermittent gear 40 is displaced to rotate the intermittent gear 40 and the intermittent gear 40 is positioned at the transmission release position. .. In the illustrated example, the engaging protrusion 40c is provided in the radial halfway portion of the intermittent gear 40 on the side of the anti-dental tooth portion (the side facing the missing tooth portion 40b across the axial center) so as to project in the direction of the third axis 42. An engaging recess 48b that engages with the engaging protrusion 40c is provided on the displacement assisting piece portion 48.

The displacement auxiliary piece portion 48 is rotatable around the one-side shaft 48a along the axial direction in the door thickness direction so that the upper end side, which is the side engaged with the engagement protrusion 40c, is displaced in the door width direction. Swingable). Further, the engaging recess 48b is provided at the upper end portion of the displacement auxiliary piece portion 48 so as to be able to accept the engaging projection 40c that moves downward with the rotation of the intermittent gear 40. Further, the upper end portion of the displacement assist piece portion 48 is provided with an inclined surface-shaped guide surface that causes the upper end side of the displacement assist piece portion 48 to be displaced toward the door end side with the contact of the engaging projection 40c that moves downward. It is provided.
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 engaging protrusion 40c is displaced so that the intermittent gear 40 is in the transmission release position with the third gear 38. The configuration is such that the force member 49 is provided. In the illustrated example, the displacement auxiliary piece portion 48 is provided with a lower piece portion extending downward from the one-piece shaft 48a, and the lower piece portion is provided with a connecting portion 48c of the urging member 49. .. It should be noted that the configuration may be such that the displacement assist mechanism 47 is not provided.

In the magnets 52, 52 and the attracted portions 54a, 58a, the tooth portions 34a, 38a of the first gear 34 and the third gear 38, which are set to the transmission release positions as described above, can mesh with the tooth portions 40a of the intermittent gear 40. The first gear 34 and the third gear 38 are respectively regulated so as to be in the position.
In the present embodiment, as shown in FIGS. 6 to 8, the attracted portions 54a and 58a are provided on the first gear 34 and the third gear 38 side, and the magnets 52 and 52 are provided on the device main body 31 side. .. Further, a plurality of attracted portions 54a and 58a are provided on the first gear 34 and the third gear 38 side at equal intervals in the circumferential direction of the first gear 34 and the third gear 38, respectively. Further, a magnet 52 for attracting one of the attracted portions 54a on the first gear 34 side and a magnet 52 for attracting any of the attracted portions 58a on the third gear 38 side are provided on the device main body 31 side. It has a structure.

Further, the number of the attracted portions 54a and 58a provided on the first gear 34 and the third gear 38 side, respectively, is set to one of two or more integers of the number of teeth of the first gear 34 and the third gear 38. .. In the present embodiment, the number of the attracted portions 54a and 58a is halved from the number of teeth of the first gear 34 and the third gear 38. In the illustrated example, the number of teeth of the first gear 34 and the third gear 38 is 32, and the number of the attracted portions 54a and 58a is 16, but the number and the number of teeth are not limited to such. .. Further, the number of attracted portions 54a and 58a depends on the number of teeth of the first gear 34 and the third gear 38, but is 1/3 or 1/4 of the number of teeth of the first gear 34 and the third gear 38. It may be 1/5 or the like, and preferably 1/2 or 1/3.

The plurality of attracted portions 54a and 58a are provided so as to be located on the circumference of each axis of the first gear 34 and the third gear 38. Further, the attracted portions 54a and 58a are provided so as to be positioned so as to correspond to the tooth portions 34a and 38a of every other tooth portion of the first gear 34 and the third gear 38. That is, each of the attracted portions 54a and 58a is provided so as to be positioned so as to coincide with the tooth portions 34a and 38a of every other tooth portion 34a and 38a of the first gear 34 and the third gear 38 in the circumferential direction.
Further, these attracted portions 54a and 58a are located on the inner peripheral side (axial center side) of the tooth portions 34a and 38a of the first gear 34 and the third gear 38, respectively, when viewed in the axial direction. It is configured as such. In the illustrated example, these attracted portions 54a and 58a are provided so as to be located on the inner peripheral side of the tooth bottoms of the tooth portions 34a and 38a of the first gear 34 and the third gear 38 when viewed in the axial direction. An example is shown.
Further, these attracted portions 54a and 58a are provided on the other side in the axial direction of the first gear 34 and the third gear 38 (the anti-second gear side and the anti-fourth gear side).

Further, in the present embodiment, the first gear 34 and the third gear 38 are made of non-magnetic materials, and the attracted portions 54a and 58a are fixedly provided on each of the first gear 34 and the third gear 38. It is configured to be provided on the disc-shaped bodies 54 and 58 made of a magnetic material. The first gear 34 and the third gear 38 made of a non-magnetic material may be made of a non-magnetic metal material such as stainless steel or a synthetic resin-based material. In addition, each of the above-mentioned gears 33, 37, 40, 41, 46 may also be made of a non-magnetic material.
The disc-shaped bodies 54 and 58 have a thin plate shape arranged along the thickness direction in each axial direction of the first gear 34 and the third gear 38, and are substantially discs having each axis as the center of the circle. It is said to be in the shape. The disc-shaped bodies 54 and 58 rotate along and with respect to the other side in the axial direction (the anti-second gear side and the anti-fourth gear side) of the first gear 34 and the third gear 38, respectively. It is fixed impossible. That is, the disk-shaped bodies 54 and 58 are configured to rotate with each of the first gear 34 and the third gear 38. In the illustrated example, the disc-shaped bodies 54 and 58 are provided with insertion holes for the shafts 32 and 36, and the disc-shaped bodies 54 and 58 are attached to the shafts 32 and 36 by a stop ring. , The first gear 34 and the third gear 38 may be directly fixed to each of the fasteners, adhesives, or the like. In this case, the disc-shaped bodies 54 and 58 may be formed into an annular shape or the like.

The suctioned portions 54a and 58a are provided at the outer peripheral end portions of the disc-shaped bodies 54 and 58, respectively. In the present embodiment, the suctioned portions 54a and 58a are projecting pieces provided so as to project outward in the radial direction at the outer peripheral end portions of the disc-shaped bodies 54 and 58. In other words, a plurality of recesses that open outward in the radial direction at equal intervals in the circumferential direction are provided as non-suction portions 54b and 58b at the outer peripheral ends of the disc-shaped bodies 54 and 58, and these non-suction portions are provided. The remaining portion between 54b and 58b is defined as the suctioned portions 54a and 58a. The dimensions of the attracted portions 54a, 58a and the non-suctioned portions 54b, 58b along the circumferential direction are such that any of the attracted portions 54a, 58a is attracted by the magnets 52, 52 described later, and erroneous suction is performed. From the viewpoint of prevention and the like, the dimensions may be appropriate. In the illustrated example, an example is shown in which the dimensions along the circumferential direction of the attracted portions 54a and 58a and the dimensions along the circumferential direction of the non-suctioned portions 54b and 58b are substantially the same.
Further, an example is shown in which the suctioned portions 54a and 58a are substantially square when viewed in the axial direction. Instead of such an embodiment, the tip portions of the suctioned portions 54a and 58a in the protruding direction may have a pointed shape or a curved shape.

Further, the disc-shaped bodies 54 and 58 may be formed of a ferromagnetic metal material such as iron. Further, the suctioned portions 54a and 58a of the disk-shaped bodies 54 and 58 are not limited to those configured by providing unevenness on the outer peripheral end portion as described above, and the non-suctioned portions 54b and 58b are configured on the outer peripheral end portion. A slit-shaped opening may be provided so that the remaining portion between the openings is the suctioned portions 54a and 58a. In this case, the arrangement positions of the magnets 52 and 52, which will be described later, may be appropriately deformed. Further, the suctioned portions 54a and 58a are not limited to the above-described aspects, and for example, the N pole and the S pole are alternately magnetized on the disk-shaped bodies 54 and 58 along the circumferential direction, and one of them is magnetized. The poles may be the suctioned portions 54a and 58a. The disc-shaped bodies 54, 58 provided with the attracted portions 54a, 58a can be further deformed in various ways depending on the arrangement position of the magnets 52, 52, which will be described later.

The magnets 52 and 52 on the device main body 31 side are provided so as to face the attracted portions 54a and 58a of the first gear 34 and the third gear 38, respectively. In the present embodiment, the magnets 52 and 52 on the device main body 31 side are provided so as to face the tip portions of the suctioned portions 54a and 58a of the disc-shaped bodies 54 and 58 in the radial direction so as to face each other. .. The dimensions of the magnets 52 and 52 along the circumferential direction may be appropriate so that the attracted portions 54a and 58a can be attracted, and from the viewpoint of preventing erroneous suction. In the illustrated example, the dimension along the circumferential direction of the magnets 52 and 52 is smaller than the dimension along the circumferential direction of the attracted portions 54a and 58a.
The magnet 52 that attracts the attracted portion 54a of the first gear 34 is provided so as to be located on the anti-third gear side of the first gear 34 in the door width direction. Further, the magnet 52 attracts the attracted portion 54a of any of the first gears 34 and positions the first gear 34 at a position (normal posture) in which the tooth portions 34a can mesh with the tooth portions 40a of the intermittent gear 40. It is structured to regulate.

That is, since the first gear 34 is allowed to rotate in at least one direction with respect to the second gear 33 meshed with and rotated by the rack 19, it is considered that the first gear 34 rotates with respect to the second gear 33 due to vibration or the like. Be done. For example, as shown in FIG. 7, the tooth tip of the tooth portion 34a of the first gear 34 meshed with the tooth portion 40a on the downstream side of the tooth portion 40b of the intermittent gear 40 rotated clockwise is the intermittent gear 40. In the state of being located on the tooth tip circle of the tooth portion 40a (abnormal posture), the tooth tips of each other interfere with each other. If the magnet 52 is provided as described above, as shown in FIG. 8, the first gear 34 is attracted so that one of the attracted portions 54a faces the magnet 52, and is in a positive posture, that is, its tooth portion. The 34a is maintained at a position where it can mesh with the tooth portion 40a of the intermittent gear 40. Note that FIG. 7 merely shows an abnormal posture, that is, a state in which the tooth tip of the tooth portion 34a of the first gear 34 and the tooth tip of the tooth portion 40a of the intermittent gear 40 are likely to interfere with each other. Actually, since the magnet 52 is provided as described above, the first gear 34 is not stopped in such a state.

The magnet 52 that attracts the attracted portion 58a of the third gear 38 is provided so as to be located on the anti-first gear side of the third gear 38 in the door width direction. Similar to the above, the magnet 52 attracts the attracted portion 58a of any of the third gears 38, and the third gear 38 is at a position where the tooth portions 38a can mesh with the tooth portions 40a of the intermittent gear 40 (positive). It is configured to regulate the posture). That is, substantially the same as above, the third gear 38 is attracted so that any of the attracted portions 58a faces the magnet 52 and is in a positive posture, that is, the tooth portions 38a mesh with the tooth portions 40a of the intermittent gear 40. It is maintained in a possible position.

Further, these magnets 52 and 52 are provided on the regulating members 51 and 51 fixed to the apparatus main body 31 (see also FIG. 1A). These regulating members 51 and 51 have the same configuration as each other. Further, these restricting members 51 and 51 are provided so that the magnets 52 and 52 are positioned so as to face the attracted portions 54a and 58a of the first gear 34 and the third gear 38, respectively. Further, these regulating members 51 and 51 are configured to be fixed to the apparatus main body 31 so that their positions can be adjusted in the circumferential direction with the axes of the first gear 34 and the third gear 38 as the center of the circle. In the illustrated example, an example is shown in which the insertion hole through which the stopper screwed into the female screw hole provided on the device main body 31 side is inserted is an arc-shaped elongated hole elongated in the circumferential direction.
It should be noted that a plurality of magnets 52, 52 may be provided at intervals in the circumferential direction so as to be located on the outer peripheral side of each of the first gear 34 and the third gear 38. Further, in the above-mentioned example, the magnets 52 and 52 are provided so as to be located on the radial outer side of the attracted portions 54a and 58a of the disc-shaped bodies 54 and 58, but the present invention is limited to such an embodiment. I can't. For example, the magnets 52 and 52 may be provided so as to be located on one side in the axial direction of the attracted portions 54a and 58a of the disk-shaped bodies 54 and 58. Further, the restricting members 51 and 51 provided with the magnets 52 and 52 are not limited to those having the above-mentioned configuration, and various other modifications are possible.

The apparatus main body 31 holds the above-mentioned gears 33, 34, 37, 38, the intermittent gear 40 including the fifth gear 41, the braking mechanism 43, the displacement assisting mechanism 47, and the regulating members 51, 51, and the above-mentioned first traveling. It is fixed to the body 28 and the second traveling body 29.
As shown in FIGS. 1A and 6A, the apparatus main body 31 has a thin plate shape along the thickness direction in the door thickness direction. The first shaft 32, the second shaft 36, the third shaft 42, and the one-sided shaft 48a are held in the main body 31 of the apparatus, and the intermittent gear 40 including the gears 33, 34, 37, 38 and the fifth gear 41, and the displacement. The auxiliary mechanism 47 and the restricting members 51, 51 are arranged on one side of the apparatus main body 31 in the thickness direction. Further, the apparatus main body 31 is provided with a connecting portion 31b of the urging member 49 of the displacement assist mechanism 47 described above.

Further, the fixed piece portions 31a and 31a fixed to the first traveling body 28 and the second traveling body 29 are provided at both ends of the apparatus main body 31 in the door width direction.
Further, in the figure example, an example in which a covering piece portion protruding toward one side in the door thickness direction is provided at the upper end portion of the apparatus main body 31 is shown. Further, an example is shown in which an opening through which the upper end side portions of the second gear 33 and the fourth gear 37 are inserted is provided in the covering piece portion.
The device main body 31 that holds each member of the gear device 30 is not limited to the one shown in the figure, but may have various other configurations.

The gear device 30 according to the present embodiment has the above-described configuration, so that the intermittent gear 40 and the gears (first gear 34 and third gear 38) 34, 38 that mesh with the intermittent gear 40 can be smoothly meshed with each other. However, it is possible to suppress the wear of the tooth portions 34a and 38a and the generation of abnormal noise.
That is, the first gear 34 is positioned so that the tooth portion 34a (38a) of the first gear 34 (third gear 38) that has been disengaged from the intermittent gear 40 can mesh with the tooth portion 40a of the intermittent gear 40. A magnet 52 for regulating (third gear 38) and a suctioned portion 54a (58a) are provided. Therefore, as described above, the first gear 34 (third gear 38) is restricted to a position where it can mesh with the tooth portion 40a of the intermittent gear 40, and therefore, when shifting from the disengaged state to the meshing state. It can be meshed smoothly. Further, the first gear 34 (third gear 38) and the magnet 52 provided on one of the apparatus main body 31 and the attracted portion 54a (58a) provided on the other and attracted by the magnet 52 are the first. The position of the gear 34 (third gear 38) is restricted. Therefore, the position of the first gear 34 (third gear 38) can be restricted to the positive posture in a non-contact state, so that the tooth portions 34a (38a) of the first gear 34 (third gear 38) are worn out. The generation of abnormal noise can be suppressed.

Further, in the present embodiment, a plurality of attracted portions 54a (58a) are provided on the first gear 34 (third gear 38) side at equal intervals in the circumferential direction of the first gear 34 (third gear 38). It is composed. Therefore, the device configuration can be simplified as compared with the case where a plurality of suctioned portions are provided on the device main body 31 side at equal intervals in the circumferential direction of the first gear 34 (third gear 38). ..
Further, in the present embodiment, the number of the attracted portions 54a (58a) is set to one of two or more integers of the number of teeth of the first gear 34 (third gear 38). Therefore, it is necessary to make the magnet 52 smaller and erroneous suction by the magnet 52 occurs as compared with the case where the attracted portions 54a (58a) are provided with the same number of teeth as the first gear 34 (third gear 38). Can be reduced.
Further, in the present embodiment, the attracted portions 54a (58a) are fixedly provided on the first gear 34 (third gear 38) made of a non-magnetic material, and the disc-shaped bodies 54, 58 made of a ferromagnetic material are fixedly provided. It has the configuration provided in. Therefore, the attracted portion 54a (58a) can be provided separately from the first gear 34 (third gear 38), and the degree of freedom in design can be improved.

Further, in the present embodiment, the first gear 34 (third gear 38) is allowed to rotate in one direction with respect to the first shaft 32 (second shaft 36) via the one-way clutch mechanism 35 (39). It has a structure. Therefore, since it spins in one direction as described above, it is considered that the magnet 52 and the attracted gear are likely to be displaced in one direction due to vibration or the like when the meshing with the intermittent gear 40 is released. The portion 54a (58a) can regulate the first gear 34 (third gear 38) to a position where it can mesh with the intermittent gear 40. The one-way clutch mechanism 35 (39) for idling the first gear 34 (third gear 38) in one direction may not be provided. In this case, the first gear 34 (third gear 38) can rotate in at least one direction with respect to the shaft support object due to the uneven fitting of the engaging convex portion 35a (39a) and the engaging concave portion 33a (37a). It may be the one that has been done.

Further, in the present embodiment, the second gear 33 (fourth gear 37) that meshes with the rack 19 as the meshing target is provided on one side in the axial direction of the first gear 34 (third gear 38). Therefore, the relative rotation is transmitted via the second gear 33 (fourth gear 37). Further, one of the first gear 34 (third gear 38) and the second gear 33 (fourth gear 37) is provided with an engaging convex portion 35a (39a) protruding in the axial direction, and the other is engaged. It is configured to be provided with an engaging recess 33a (37a) for receiving the convex portion 35a (39a). Therefore, the first gear 34 (third gear 38) is provided with play on both sides in the circumferential direction with respect to the second gear 33 (fourth gear 37), and the first gear 34 (first gear 34) as described above is provided. The position regulation of the 3 gears 38) is made smoother. It should be noted that the configuration may be such that the engaging convex portion 35a (39a) and the engaging concave portion 33a (37a) are not provided. In this case, the one-way clutch mechanism 35 (39) as described above may be provided.

Next, another embodiment of the present invention will be described with reference to the drawings.
FIG. 9 is a diagram schematically showing an example of a gear device according to a second embodiment and a sliding door device provided with the gear device.
The differences from the first embodiment will be mainly described, and the same components will be designated by the same reference numerals, and the description thereof will be omitted or briefly described. In addition, the same operation and operation will be omitted or briefly explained.

The gear device 30A and the sliding door device 1A provided with the gear device 30A according to the present embodiment are mainly different from the first embodiment in the configuration of the intermittent gear 40A. In the present embodiment, as shown in FIG. 9B, the intermittent gear 40A is provided coaxially with the first gear 34 provided coaxially with the second gear 33 and the third gear coaxially provided with the fourth gear 37. It is configured to be located between 38 and 38. As shown in FIG. 9A, the example shows an example in which the third shaft 42A of the intermittent gear 40A is provided so as to be located at substantially the same height as the first shaft 32 and the second shaft 36. However, the configuration may be provided so as to be located on the lower side or the upper side of the first axis 32 and the second axis 36. Further, in the figure, an example in which the diameter of the intermittent gear 40A is smaller than that of the first embodiment and smaller than that of the first gear 34 and the third gear 38 is shown. The diameter may be appropriate depending on the distance and the like.

Further, in the present embodiment, as shown in FIG. 9A, the braking mechanism 43A is rotated around the third shaft 42A of the intermittent gear 40A without providing the fifth gear 41 and the sixth gear 46 as described above. It is configured to apply braking force to the gear. With such a configuration, the structure can be simplified and made compact. Further, the third shaft 42A of the intermittent gear 40A 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 intermittent gear 40A which is displaced by transmitting the rotation of the third gear 38.
Further, also in the present embodiment, the attracted portions 54a and 58a are provided on the first gear 34 and the third gear 38 side, respectively, and the attracted portions 54a and 58a are attracted to the apparatus main body 31A side to suck the first gear 34. The third gear 38 is provided with magnets 52 and 52 for restricting the third gear 38 to the positive posture.

Further, in the present embodiment, the gear device 30A is configured to be arranged so that the entire gear device 30A is located in the rail groove 16 of the upper rail 15. That is, the vertical dimension of the gear device 30A is smaller than that of the first embodiment. Further, in the illustrated example, the device main body 31A is not provided with a portion that protrudes downward, but a lower plate portion that protrudes in the door thickness direction is provided at the lower end portion of the device main body 31A, and the lower plate portion is provided. An example is shown in which fixed piece portions 31Aa and 31Aa are provided at both ends in the door width direction. In this embodiment as well, the displacement assist mechanism 47 as described above may be provided.
Also in the gear device 30A having the above configuration, it is possible to decelerate the door body 10A that moves a predetermined distance from an arbitrary open position to the closed side in the same manner as described above.
Further, the gear device 30A according to the present embodiment and the sliding door device 1A provided with the gear device 30A having the above-described configuration also have substantially the same effects as those of the first embodiment.

In each of the above embodiments, an example is shown in which the suctioned portion 54a (58a) is provided on the disc-shaped body 54 (58) provided in the form of attachment to the first gear 34 (third gear 38). , The present invention is not limited to such an aspect. For example, the first gear 34 (third gear 38) may be provided with the attracted portion 54a (58a) embedded in the first gear 34 (third gear 38).
Further, in each of the above embodiments, an example is shown in which the number of the suctioned portions 54a (58a) is set to one of two or more integers of the number of teeth of the first gear 34 (third gear 38). , The present invention is not limited to such an aspect. The suctioned portions 54a (58a) may be provided in the same number as the number of teeth of the first gear 34 (third gear 38). In this case, the first gear 34 (third gear 38) itself may be made of a ferromagnetic material, and the tooth portions 34a (38a) thereof may constitute the attracted portion 54a (58a).
Further, in each of the above embodiments, an example is shown in which the attracted portion 54a (58a) is provided on the first gear 34 (third gear 38) side and the magnets 52 and 52 are provided on the device main bodies 31 and 31A side. , The present invention is not limited to such an aspect. For example, a plurality of suctioned portions are provided on the device main bodies 31 and 31A side at equal intervals in the circumferential direction of the first gear 34 (third gear 38), and on the first gear 34 (third gear 38) side. A magnet may be provided to attract any of the suctioned portions.

Further, in each of the above embodiments, an example in which the first gear 34 is provided coaxially with the second gear 33 and the third gear 38 is provided coaxially with the fourth gear 37 is shown. Not limited. For example, the first gear 34 can be interlocked with the second gear 33, and the third gear 38 can be interlocked with the fourth gear 37 by various rotation transmission mechanisms such as gear transmission, friction transmission, and winding transmission. It may be provided as such.
Further, in each of the above embodiments, one of the first gear 34 and the third gear 38 is configured to shift from a state in which the meshing with the intermittent gear 40 is disengaged to a state in which the intermittent gear 40 is rotated and meshed by the other. However, the present invention is not limited to such an embodiment. For example, only the first gear 34 may be provided, and the intermittent gear 40 may be configured to be rotated by another rotation transmission mechanism. In this case, the first gear 34 may be provided with a braking mechanism 43 for applying a braking force, and further, instead of the configuration in which the rotation is intermittently transmitted to the braking mechanism 43, another rotation transmission mechanism may be provided. It may be configured to intermittently transmit rotation.

Further, in each of the above embodiments, examples in which the gears 33, 34, 37, 38, 40 (40A), 41, and 46 are spur gears are shown, but helical gears, helical gears, and the like may be used. .. The specific configuration of each member of the gear devices 30 and 30A according to each of the above embodiments is not limited to the above configuration, and various other modifications are possible. Further, in the above-mentioned example, an example in which the gear devices 30 and 30A according to each of the above-described embodiments are installed in the door bodies 10 and 10A of the sliding door devices 1 and 1A has been described, but the present invention is not limited to such an embodiment. The gear devices 30 and 30A according to each of the above embodiments may be retrofitted to an existing door body, or may be installed in various installation targets other than the door body.

30,30A Gear device 31,31A Device body 32 1st axis (axis)
33 2nd gear 33a Engagement concave part 34 1st gear 34a Tooth part 35 One-way clutch mechanism 35a Engagement convex part 36 2nd shaft (axis)
37 4th gear (2nd gear)
37a Engagement recess 38 3rd gear (1st gear)
38a Tooth part 39 One-way clutch mechanism 39a Engagement convex part 40, 40A Intermittent gear 40a Tooth part 40b Tooth part 52 Magnet 54,58 Disk-shaped body (ferromagnetic material)
54a, 58a Suctioned part 19 rack (to be meshed)

Claims (7)

A first gear that is allowed to rotate in at least one direction with respect to the shaft, an intermittent gear provided with a tooth portion that meshes with the first gear and a missing tooth portion that is disengaged, and these first gears and intermittent gears. The main body of the device provided with the gear, a plurality of attracted portions provided on the first gear side at equal intervals in the circumferential direction of the first gear , and one of the plurality of attracted portions are attracted. A magnet provided on the main body side of the apparatus is provided, and the magnet and the attracted portion have a tooth portion of the first gear that is disengaged from the intermittent gear and a tooth portion of the intermittent gear. is configured to regulate the first gear such that meshing can be located in parts, the number of the suction unit, characterized by two or more 1 der Rukoto integral fraction of the number of teeth of the first gear Gear device. In claim 1 ,
A second gear that meshes with the meshing target is provided on one side of the first gear in the axial direction.
One of the first gear and the second gear is provided with an engaging protrusion protruding in the axial direction, and the other is allowed to rotate the first gear with respect to the second gear. A gear device provided with an engaging recess for receiving the engaging protrusion. A first gear that is allowed to rotate in at least one direction with respect to the shaft, an intermittent gear provided with a tooth portion that meshes with the first gear and a missing tooth portion that is disengaged, and these first gears and intermittent gears. A device main body provided with a gear, a magnet provided on one of the first gear and the device main body, and an attracted portion provided on the other and attracted by the magnet, and these magnets and The suctioned portion is configured to regulate the first gear so that the tooth portion of the first gear whose meshing with the intermittent gear is disengaged can be meshed with the tooth portion of the intermittent gear. ,
A second gear that meshes with the meshing target is provided on one side of the first gear in the axial direction.
One of the first gear and the second gear is provided with an engaging protrusion protruding in the axial direction, and the other is allowed to rotate the first gear with respect to the second gear. A gear device provided with an engaging recess for receiving the engaging protrusion. In claim 3 ,
A plurality of the suctioned portions are provided on the first gear side at equal intervals in the circumferential direction of the first gear, and one of the plurality of attracted portions is suctioned on the apparatus main body side. A gear device characterized in that the magnet is provided. In claim 4 ,
The gear device, characterized in that the number of the suctioned portions is one of two or more integers of the number of teeth of the first gear. In any one of claims 1, 2, 4, and 5 ,
The first gear is a non-magnetic material, and the attracted portion is provided on a ferromagnetic material fixedly provided on the first gear. In any one of claims 1 to 6 ,
The first gear is a gear device characterized in that rotation in one direction is permitted with respect to the shaft via a one-way clutch mechanism.

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