CN110027449B - Sliding device - Google Patents
Sliding device Download PDFInfo
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- CN110027449B CN110027449B CN201910006909.0A CN201910006909A CN110027449B CN 110027449 B CN110027449 B CN 110027449B CN 201910006909 A CN201910006909 A CN 201910006909A CN 110027449 B CN110027449 B CN 110027449B
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- rotating body
- holes
- gear
- movable rail
- rail
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60N—SEATS SPECIALLY ADAPTED FOR VEHICLES; VEHICLE PASSENGER ACCOMMODATION NOT OTHERWISE PROVIDED FOR
- B60N2/00—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles
- B60N2/02—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles the seat or part thereof being movable, e.g. adjustable
- B60N2/04—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles the seat or part thereof being movable, e.g. adjustable the whole seat being movable
- B60N2/06—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles the seat or part thereof being movable, e.g. adjustable the whole seat being movable slidable
- B60N2/07—Slide construction
- B60N2/0722—Constructive details
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- Engineering & Computer Science (AREA)
- Aviation & Aerospace Engineering (AREA)
- Transportation (AREA)
- Mechanical Engineering (AREA)
- Seats For Vehicles (AREA)
Abstract
A slide device includes a fixed rail having a plurality of holes arranged in series in a longitudinal direction, a movable rail slidable with respect to the fixed rail, and a drive unit. The drive unit is provided on the movable rail and slides the movable rail relative to the fixed rail. The drive unit has a 1 st rotating body, a 2 nd rotating body, and a transmission body. The outer peripheral surface of the 1 st rotating body has a 1 st protruding portion configured to be detachably fitted into a plurality of holes. The outer peripheral surface of the 2 nd rotating body has a 2 nd protrusion configured to be detachably fitted into any 1 of the plurality of holes at a timing different from a timing at which the 1 st protrusion is fitted into any 1 of the plurality of holes. The transmission body is configured to rotate the 1 st rotating body and the 2 nd rotating body in synchronization.
Description
Technical Field
The present disclosure relates to a slide device that supports a vehicle seat to be slidable.
Background
For example, a sliding device described in japanese patent application laid-open No. 2015-116833 has a rack fixed to an outer side surface of a fixed rail and a spur gear that is displaced integrally with a movable rail.
Disclosure of Invention
If the modulus of the rack is increased, the pitch circle diameter of the pinion is increased, which leads to an increase in the size of the pinion and, in turn, an increase in the size of the sliding device. Therefore, the present application aims to provide an example of a sliding device that can suppress an increase in size.
One aspect of the present disclosure relates to a slide device that supports a vehicle seat to be slidable, the slide device having a fixed rail, a movable rail, and a drive unit. The fixed rail is to be fixed to a vehicle, and the fixed rail is provided with a plurality of holes in line along a length direction thereof. The vehicle seat is to be fixed to the movable rail, and the movable rail is slidable with respect to the fixed rail. The drive unit is provided on the movable rail and slides the movable rail relative to the fixed rail.
The drive unit has a 1 st rotating body, a 2 nd rotating body, and a transmission body. The 1 st rotating body has at least 1 st projection on its outer peripheral surface, and the 1 st projection is configured to be detachably fitted into a plurality of holes. The 2 nd rotating body is provided at a position shifted from the 1 st rotating body in the longitudinal direction, and has at least 12 nd protrusion on the outer peripheral surface of the 2 nd rotating body, and the at least 12 nd protrusion is configured to be detachably fitted into the plurality of holes at a timing different from a timing at which the 1 st protrusion is fitted into any 1 of the plurality of holes by rotating the 2 nd rotating body in a state of being shifted in phase with respect to the 1 st rotating body. The transmission body is configured to rotate the 1 st rotating body and the 2 nd rotating body in synchronization.
Thus, in the sliding device, the 2 nd protrusion is detachably fitted into the plurality of holes at a timing different from the 1 st protrusion in a state where the 1 st rotating body and the 2 nd rotating body rotate in synchronization. Therefore, the action of the driving unit is the same as the action of the rack and pinion gear meshing. Further, the above-described time difference between the 1 st and 2 nd protrusions is determined according to the phase difference between the 1 st and 2 nd rotating bodies corresponding to the distance between the plurality of holes.
Therefore, in the case where the above-described operation is performed by 2 rotating bodies, i.e., the 1 st rotating body and the 2 nd rotating body, the diameter of each of the 2 rotating bodies can be made smaller than the diameter of the 1 st rotating body, as compared with the case where the above-described operation is performed by only 1 rotating body, i.e., the operation in which the protrusion is fitted into the plurality of holes at different timings. Further, the slide device can be prevented from being enlarged.
Further, the sliding device may have the following structure.
That is, the sliding apparatus may include a 1 st gear part and a 2 nd gear part, the 1 st gear part may be configured to rotate integrally with the 1 st rotating body, the 2 nd gear part may be configured to rotate integrally with the 2 nd rotating body, and the transmission body may be a gear that meshes with the 1 st gear part and the 2 nd gear part.
Thus, the sliding device can transmit a larger torque to the 1 st rotating body and the 2 nd rotating body than a driving unit using a toothed belt as a transmission body, and can suppress a large deviation between the timing of starting rotation of the 1 st rotating body and the timing of starting rotation of the 2 nd rotating body.
In addition, it is generally difficult to bend a transmission belt such as a toothed belt at a radius of curvature smaller than a predetermined minimum radius of curvature. Therefore, in the configuration using the belt as the transmission body, the radius of the 1 st rotating body and the 2 nd rotating body must be larger than or equal to the minimum radius of curvature. On the other hand, if the transmission body is a gear, the radius of the 1 st rotating body and the 2 nd rotating body can be made smaller than the minimum radius of curvature, and therefore, the slide device can be prevented from being increased in size.
The driving unit may include a 3 rd rotating body, a 3 rd gear portion, and a transmission gear, the 3 rd rotating body may be provided at a position shifted from the 1 st rotating body in the longitudinal direction, the 3 rd rotating body may be provided on the opposite side of the 1 st rotating body from the 2 nd rotating body, the 3 rd rotating body may include at least 13 rd protruding portion on an outer circumferential surface of the 3 rd rotating body, the at least 13 rd protruding portion may be configured to be detachably fitted into the plurality of holes at a timing different from a timing at which the 1 st protruding portion and the 2 nd protruding portion are fitted into the plurality of holes, the 3 rd gear portion may be configured to rotate integrally with the 3 rd rotating body, the transmission gear may be engaged with the 1 st gear portion and the 3 rd gear portion, and the driving unit may be configured such that a rotational force is input to the 1 st rotating body or the 1 st gear portion.
Accordingly, for example, as compared with a configuration in which the rotational force is input to the 2 nd rotating body or the 2 nd gear portion and then transmitted to the 3 rd rotating body via the 1 st gear portion, it is possible to suppress a decrease in the transmission efficiency of the rotational force.
In the sliding device, a plurality of 2 nd holes may be provided in series in the longitudinal direction in the fixed rail, and the plurality of 2 nd holes may be provided at positions on the opposite side of the plurality of holes across the space in which the movable rail slides. The sliding apparatus may further include a latch member configured to be detachably fitted into any one of the 1 st holes of the plurality of 2 nd holes, the latch member being configured to restrict sliding of the movable rail, and a distance between the plurality of 2 nd holes may be the same as a distance between the plurality of holes. This makes it possible to restrict the sliding of the movable rail by using the plurality of holes in another sliding device, for example.
The cushioning member, which may be made of resin, covers the outer edges of the plurality of holes. Thereby, noise generated when the 1 st and 2 nd protrusions are fitted into the plurality of holes and noise generated when the 1 st and 2 nd protrusions are detached from the plurality of holes can be reduced.
Another aspect of the present disclosure relates to a drive unit that is applied to a sliding apparatus having a fixed rail and a movable rail, and that is provided to the movable rail and slides the movable rail with respect to the fixed rail. The fixed rail is to be fixed to a vehicle, and the fixed rail is provided with a plurality of holes in line along a length direction thereof. The vehicle seat is to be fixed to the movable rail, and the movable rail is configured to be slidable with respect to the fixed rail.
The drive unit includes a 1 st rotating body, a 2 nd rotating body, and a transmission body. The 1 st rotating body has at least 1 st projection on its outer peripheral surface, and the at least 1 st projection is configured to be detachably fitted into a plurality of holes. The 2 nd rotating body is provided at a position shifted from the 1 st rotating body, and has at least 12 nd protrusion on the outer peripheral surface of the 2 nd rotating body, and the at least 12 nd protrusion is configured to be detachably fitted into the plurality of holes at a timing different from a timing at which the 1 st protrusion is fitted into any 1 of the plurality of holes by rotating the 2 nd rotating body in a state of being out of phase with respect to the 1 st rotating body. The transmission body is configured to rotate the 1 st rotating body and the 2 nd rotating body in synchronization.
Drawings
Fig. 1 is a diagram showing a sliding apparatus of an embodiment.
Fig. 2 is an exploded view of the sliding device of the embodiment.
Fig. 3 is a diagram showing a restricting position of a latch member of the embodiment.
Fig. 4 is a diagram showing a gear device of the sliding device of the embodiment.
Fig. 5 is a diagram showing a gear device of the sliding device of the embodiment.
Fig. 6 is a diagram showing a gear device of the sliding device of the embodiment.
Fig. 7 is an exploded view of a gear device of the sliding device of the embodiment.
Fig. 8 is a diagram showing a gear device of the sliding device of the embodiment.
Fig. 9A to 9E are explanatory views of the operation of the gear device of the sliding device according to the embodiment.
Fig. 10A to 10E are explanatory views of the operation of the gear device of the sliding device according to the embodiment.
Detailed Description
Exemplary embodiments of the present disclosure are described below with reference to the accompanying drawings.
The following "embodiment" shows an example of an embodiment that falls within the technical scope of the present disclosure. That is, the technical means and the like described in the claims are not limited to the specific configurations, structures and the like shown in the following embodiments.
As shown in fig. 1, the slide device of the present embodiment is used in a seat 1 (hereinafter referred to as a vehicle seat 1) attached to a vehicle such as a vehicle. Arrows and the like indicating directions in the drawings are symbols provided for facilitating understanding of the relationship between the drawings.
Accordingly, the present disclosure is not limited to the orientations noted in the figures. The directions shown in the drawings are directions in a state where the vehicle seat of the present embodiment is assembled in a vehicle.
(embodiment 1)
1. Outline of sliding device
As shown in fig. 1, the 1 st slide device 10 slidably supports the vehicle seat 1. The vehicle seat 1 is slidably supported by the 1 st slide device 10 and the 2 nd slide device 10A.
The 1 st slide device 10 supports one end side (the right end side in the present embodiment) in the seat width direction of the vehicle seat 1. The 2 nd slide device 10A supports the other end side (the left end side in the present embodiment) of the vehicle seat 1 in the seat width direction. The following description is a detailed description of the first sliding apparatus 10. The 2 nd slide device 10A may have the same structure as the 1 st slide device 10 as a whole or partially, or may have a completely different structure from the 1 st slide device 10.
2. Structure of sliding device
2.1 general description of the sliding device
As shown in fig. 2, the 1 st slide device 10 has at least a fixed rail 11, a movable rail 12, a drive unit 14, and the like. The fixed rail 11 is a member to be fixed to a vehicle.
The movable rail 12 is slidable with respect to the fixed rail 11. Further, the vehicle seat 1 is fixed to the movable rail 12. The vehicle seat 1 of the present embodiment is indirectly fixed to the movable rail 12 via the base 13.
As shown in fig. 1, the base 13 includes 2 beam portions 13A and 13B, connecting portions 13C to 13E, and the like. The beam portion 13A and the beam portion 13B extend in the seat width direction. The connecting portions 13C to 13E connect the beam portion 13A and the beam portion 13B. The base 13 is fixed to the 1 st slide device 10 and the 2 nd slide device 10A in a state of being bridged between the 1 st slide device 10 and the 2 nd slide device 10A.
As shown in fig. 2, the fixed rail 11 is provided with a plurality of 1 st holes 11A and a plurality of 2 nd holes 11B. As shown in fig. 3, each of the 1 st holes 11A is a through hole provided at the 1 st portion 11C of the fixed rail 11, which is substantially orthogonal to the width direction and has a belt shape.
The plurality of 2 nd holes 11B are through holes. The plurality of 2 nd holes 11B are provided at the 2 nd portion 11D of the fixed rail 11, which is substantially orthogonal to the width direction and has a belt shape. The 2 nd portion 11D is located on the opposite side of the 1 st portion 11C with respect to the space 11F in which the movable rail 12 slides.
The plurality of 1 st holes 11A and the plurality of 2 nd holes 11B are provided in series along the longitudinal direction of the fixed rail 11. In the present embodiment, the distance between the adjacent 1 st holes 11A is the same as the distance between the adjacent 2 nd holes 11B. The size of the plurality of 1 st holes 11A is the same as the size of the plurality of 2 nd holes 11B.
As will be described later, the plurality of 1 st holes 11A are used when sliding the movable rail 12. A cushioning member 21 (see fig. 2) made of resin covers the outer edges of the plurality of 1 st holes 11A. As shown in fig. 2, the cushioning member 21 is a member formed by providing through holes 21A in the plate-shaped band-like member at portions corresponding to the respective 1 st holes 11A. The cushioning member 21 is fixed to the 1 st site 11C.
The plurality of 2 nd holes 11B are used for restricting the sliding of the movable rail 12. The latch member 12A shown in fig. 1 is a member for restricting the sliding of the movable rail 12. The latch member 12A is provided with at least 1 (3 in the present embodiment) protruding portions 12B.
The projection 12B is a portion that is detachably fitted into any 1 of the plurality of 2 nd holes 11B. The latch member 12A, i.e., 3 projecting portions 12B, is displaceable between a restricting position shown in fig. 3 and a non-restricting position not shown.
The restricting position in the present embodiment is a position where 3 protrusions 12B are fitted into 3 2 nd holes 11B. The non-restricting position is a position where 3 protrusions 12B have disengaged from 3 2 nd holes 11B. The latch member 12A of the present embodiment is driven by an electric actuator (not shown) such as a motor to be displaced between the restricting position and the non-restricting position.
2.2 drive Unit
< brief summary of drive Unit >
The drive unit 14 is a drive device for sliding the movable rail 12 with respect to the fixed rail 11. As shown in fig. 4, the drive unit 14 is attached to the movable rail 12 via a bracket 14A. Therefore, the drive unit 14 and the movable rail 12 are displaced integrally with respect to the fixed rail 11.
The drive unit 14 includes at least a drive unit 15, a gear device 16, and the like. The driving unit 15 includes an actuator 15A, a speed reduction mechanism 15B, and the like. The actuator 15A is constituted by a motor or the like for generating a rotational force. The speed reduction mechanism 15B increases the rotational force generated by the actuator 15A and transmits the increased rotational force to the gear device 16.
< Structure of Gear device >
The gear device 16 shown in fig. 5 and 6 is a device that slides the movable rail 12 by the rotational force output from the speed reduction mechanism 15B. As shown in fig. 7, the gear device 16 includes at least a 1 st rotating body 17, a 2 nd rotating body 18, a 3 rd rotating body 19, a 1 st transmission gear 23A, a 2 nd transmission gear 23B, and the like. The gear device 16 of the present embodiment further includes a 3 rd rotating body 19.
The 1 st, 2 nd, and 3 rd rotary bodies 17, 18, and 19 are supported so as to be rotatable with respect to the gear boxes 20A and 20B with the 1 st, 2 nd, and 3 rd rotary bodies 17, 18, and 19 being sandwiched between the gear boxes 20A and 20B (see fig. 5).
The 1 st rotating body 17, the 2 nd rotating body 18, and the 3 rd rotating body 19 supported by the gear boxes 20A and 20B are arranged in series along the longitudinal direction of the fixed rail 11 (the front-rear direction of the seat in the present embodiment).
The 2 nd rotating body 18 is disposed at a position shifted from the 1 st rotating body 17 in the longitudinal direction (on the seat front side in the present embodiment) with respect to the 1 st rotating body 17. The 3 rd rotating body 19 is disposed at a position offset to the opposite side (seat rear side in the present embodiment) of the 2 nd rotating body 18 with respect to the 1 st rotating body 17.
As shown in fig. 7, at least 1 (3 in the present embodiment) 1 st protrusions 17A are provided on the outer peripheral surface of the 1 st rotating body 17. The 1 st projection 17A is configured to be detachably fitted into the plurality of 1 st holes 11A.
As shown in fig. 8, at least 1 (3 in the present embodiment) 2 nd protrusions 18A are provided on the outer peripheral surface of the 2 nd rotating body 18. The 2 nd projection 18A is configured to be detachably fitted into the plurality of 1 st holes 11A.
At least 1 (3 in the present embodiment) 3 rd protruding portion 19A is provided on the outer peripheral surface of 3 rd rotating body 19. The 3 rd projecting portion 19A is configured to be detachably fitted into the plurality of 1 st holes 11A.
The 1 st rotating body 17, the 2 nd rotating body 18, and the 3 rd rotating body 19 are congruent in shape. The 1 st, 2 nd, and 3 rd rotating bodies 17, 18, and 19 are supported by the gear boxes 20A and 20B in a state in which their phases are shifted from those of the adjacent rotating bodies.
Specifically, the 2 nd rotating body 18 is supported by the gear boxes 20A and 20B in a state of being delayed by a predetermined phase from the 1 st rotating body 17. The 3 rd rotating body 19 is supported by the gear boxes 20A and 20B in a state of being advanced by a predetermined phase from the 1 st rotating body 17.
Thus, the 2 nd projection 18A is detachably fitted into any 1 of the 1 st holes 11A at a timing different from the 1 st projection 17A. Similarly, the 3 rd projection 19A is detachably fitted into any 1 of the 1 st holes 11A at a timing different from the 1 st projections 17A and the 2 nd projections 18A.
The advanced state described here means a state in which the gear device 16 is rotated rightward relative to the 1 st rotating body 17 when viewed from the viewpoint of fig. 8. The retarded state is a state in which the gear device 16 rotates leftward as compared with the 1 st rotating body 17 when viewed from the viewpoint of fig. 8. Further, the time difference between the 1 st projection 17A and the 2 nd projection 18A is determined based on the phase difference between the 1 st rotor 17 and the 2 nd rotor 18 corresponding to the distance between the adjacent 1 st holes 11A.
The 1 st transmission gear 23A is a gear for synchronously rotating the 1 st rotating body 17 and the 2 nd rotating body 18. The 2 nd transmission gear 23B is a gear for synchronously rotating the 1 st rotating body 17 and the 3 rd rotating body 19. The 1 st rotating body 17, the 2 nd rotating body 18, and the 3 rd rotating body 19 are synchronously rotated by the 1 st transmission gear 23A and the 2 nd transmission gear 23B.
As shown in fig. 6, the 1 st rotating body 17 is provided with a 1 st gear portion 17B that rotates integrally with the 1 st rotating body 17. The 2 nd rotating body 18 is provided with a 2 nd gear portion 18B that rotates integrally with the 2 nd rotating body 18. The 3 rd rotor 19 is provided with a 3 rd gear portion 19B that rotates integrally with the 3 rd rotor 19.
The 1 st gear part 17B is arranged coaxially with the 1 st rotor 17 and is integrated with the 1 st rotor 17. The 2 nd gear portion 18B is disposed coaxially with the 2 nd rotor 18 and is integrated with the 2 nd rotor 18. The 3 rd gear part 19B is integrated with the 3 rd rotor 19 in a state of being disposed coaxially with the 3 rd rotor 19.
The 1 st transmission gear 23A meshes with the 1 st gear 17B and the 2 nd gear 18B. The 2 nd transmission gear 23B meshes with the 1 st gear 17B and the 3 rd gear 19B. Thereby, the 1 st rotating body 17, the 2 nd rotating body 18, and the 3 rd rotating body 19 are mechanically rotated in synchronization.
The rotational force output from the driving unit 15 is input to the 1 st rotating body 17 or the 1 st gear unit 17B. Specifically, the 1 st rotating body 17 is provided with a fitting hole (not shown) that fits into the output shaft 15C (see fig. 4) of the driving unit 15. When the output shaft 15C rotates, the 1 st rotating body 17 rotates integrally with the output shaft 15C without sliding relative to the output shaft 15C.
Further, a portion having a rotation stop function such as a spline or a serration may be provided in the output shaft 15C and the fitting hole.
< operation of Gear device >
As shown in fig. 9A to 9E and fig. 10A to 10E, the 1 st rotating body 17, the 2 nd rotating body 18, and the 3 rd rotating body 19 rotate while maintaining a predetermined phase difference. The 1 st rotating body 17, the 2 nd rotating body 18, and the 3 rd rotating body 19 rotate in the order shown in fig. 9A → fig. 9B → fig. 9C → fig. 9D → fig. 9E → fig. 10A → fig. 10B → fig. 10C → fig. 10D → fig. 10E.
That is, the 1 st projection 17A, the 2 nd projection 18A, and the 3 rd projection 19A are sequentially fitted into any 1 of the 1 st holes 11A and then released from the 1 st hole 11A into which they are fitted.
Specifically, when 1 of the 1 st projection 17A, the 2 nd projection 18A, and the 3 rd projection 19A is in a state of being fitted into the 1 st hole 11A, one of the remaining projections is in a process of being detached from the 1 st hole 11A (hereinafter referred to as a detachment process), and the other of the remaining projections is in a process of entering the 1 st hole 11A (hereinafter referred to as an entering process).
For example, in fig. 9A, the 1 st protrusion 17A marked with a black dot is fitted into the 1 st hole 11A. In fig. 9A, the 2 nd projection 18A marked with a black dot is in the process of entering. In fig. 9A, the 3 rd projecting portion 19A marked with a black dot is in the detaching process.
In fig. 9B, the 1 st protrusion 17A marked with a black dot is in the detaching process. In fig. 9B, the process of entering the 2 nd projection 18A marked with a black dot is further advanced than the state shown in fig. 9A. In fig. 9B, the detaching process of the 3 rd projecting portion 19A marked with a black dot is further advanced than the state shown in fig. 9A.
In fig. 9D, the 2 nd projection 18A marked with a black dot is fitted into the 1 st hole 11A, and the 1 st projection 17A marked with a black dot and the 3 rd projection 19A marked with a black dot are in a detaching process.
In fig. 10D, the 3 rd projection 19A (the 3 rd projection 19A marked with a black triangle) adjacent to the 3 rd projection 19A marked with a black dot on the backward side in the rotational direction is fitted into the 1 st hole 11A.
In fig. 10D, the 1 st projection 17A marked with black dots and the 2 nd projection 18A marked with black dots are in the process of coming off, and the 1 st projection 17A (the 1 st projection 17A marked with black triangle) adjacent to the 1 st projection 17A marked with black dots on the backward side in the rotation direction is in the process of coming in.
3. Characteristics of the sliding device of the present embodiment
In the first sliding device 10 of the present embodiment, as shown in fig. 9A to 9E and fig. 10A to 10E, in a state where the 1 st rotating body 17, the 2 nd rotating body 18, and the 3 rd rotating body 19 rotate synchronously, the 1 st protruding portion 17A, the 2 nd protruding portion 18A, and the 3 rd protruding portion 19A are each detachably fitted into any 1 of the plurality of 1 st holes 11A at different timings from each other. That is, the drive unit 14 functions similarly to the case where the rack and the pinion are engaged with each other. The different times are times other than the completely matched times. Therefore, if the 1 st projection 17A, the 2 nd projection 18A, and the 3 rd projection 19A are different in the timing of starting to fit each other, two or more of them may be simultaneously fitted into any 1 of the plurality of 1 st holes 11A.
Since 3 rotating bodies, that is, the 1 st rotating body 17, the 2 nd rotating body 18, and the 3 rd rotating body 19, are used to achieve the same operation as in the case of meshing the rack and the pinion, the diameter of each of the 3 rotating bodies can be made smaller than the diameter of the 1 rotating body, as compared with the case of achieving the same operation using only the 1 rotating body. Further, the size increase of the 1 st sliding device 10 can be suppressed.
In the present embodiment, the 1 st transmission gear 23A and the 2 nd transmission gear 23B are used as the transmission bodies. Thus, the drive unit 14 of the present embodiment has the following effects as compared with a drive unit using a toothed belt as a transmission body. (i) A larger torque can be transmitted to the 1 st rotating body 17, the 2 nd rotating body 18, and the 3 rd rotating body 19. (ii) It is possible to suppress occurrence of a large variation in the timing of starting rotation of 1 st rotating body 17, 2 nd rotating body 18, and 3 rd rotating body 19.
In the drive unit using the toothed belt as the transmission body, the toothed belt may slip with respect to any one of the 1 st rotating body 17, the 2 nd rotating body 18, and the 3 rd rotating body 19. If the toothed belt slips, torque cannot be transmitted, and therefore, the timing of starting rotation varies greatly. However, the first sliding device 10 according to embodiment 1 is less likely to cause the above-described risk.
Furthermore, it is difficult to bend a transmission belt such as a toothed belt with a radius of curvature smaller than a predetermined minimum radius of curvature. Therefore, in the configuration using the belt as the transmission body, the radius of the 1 st rotating body 17, the 2 nd rotating body 18, and the 3 rd rotating body 19 is greater than or equal to the minimum radius of curvature. On the other hand, if the transmission body is a gear, the radii of the 1 st rotating body 17, the 2 nd rotating body 18, and the 3 rd rotating body 19 can be made smaller than the minimum radius of curvature, and therefore, the 1 st sliding device 10 can be prevented from being increased in size.
In the 1 st sliding device 10 according to the present embodiment, the rotational force is transmitted from the 1 st rotating body 17 to the 2 nd rotating body 18 via the 1 st transmission gear 23A. And the rotational force is transmitted from the 1 st rotating body 17 to the 3 rd rotating body 19 via the 2 nd transmission gear 23B.
Accordingly, as compared with the configuration in which the rotational force is input to the 2 nd rotor 18 or the 2 nd gear 18B and then transmitted to the 3 rd rotor 19 via the 1 st gear 17B, the decrease in the transmission efficiency of the rotational force can be suppressed.
The distance between the plurality of 2 nd holes 11B into which the latch members 12A are detachably fitted is the same as the distance between the plurality of 1 st holes 11A. Thus, the manufacturer of the 1 st sliding device 10 can restrict the sliding of the movable rail 12 by using the plurality of 1 st holes 11A in another sliding device. That is, the fixed rail 11 disposed on one end side in the seat width direction and the fixed rail 11 disposed on the other end side in the seat width direction can be shared.
The cushioning member 21 made of resin covers the outer edges of the plurality of 1 st holes 11A. This can reduce noise generated when the 1 st, 2 nd, and 3 rd protrusions 17A, 18A, and 19A are fitted into any 1 of the 1 st holes 11A and noise generated when the 1 st, 2 nd, and 3 rd protrusions 17A, 18A, and 19A are detached from the 1 st holes 11A.
(other embodiments)
In the above embodiment, when 1 of the 1 st projection 17A, the 2 nd projection 18A, and the 3 rd projection 19A is in a state of being fitted into the 1 st hole 11A, one of the remaining projections is in a detaching process, and the other of the remaining projections is in an entering process. However, the present disclosure is not limited thereto.
In the above embodiment, the first rotating body 17, the second rotating body 18, and the third rotating body 19 are provided. However, the present disclosure is not limited thereto. That is, the 1 st sliding device 10 may have a configuration having 2 rotating bodies or a configuration having 4 or more rotating bodies, for example.
In the above embodiment, the 2 nd rotating body 18 is disposed on the seat front side with respect to the 1 st rotating body 17. However, the present disclosure is not limited thereto. That is, the 1 st slide device 10 may be configured such that, for example, the 2 nd rotating body 18 is disposed on the seat rear side with respect to the 1 st rotating body 17.
In the above embodiment, the 2 nd holes 11B into which the latch members 12A are detachably fitted are provided. However, the present disclosure is not limited thereto. That is, the 1 st slide device 10 may be configured to, for example, omit the plurality of 2 nd holes 11B and to detachably fit the latch member 12A into any 1 of the plurality of 1 st holes 11A.
In the above embodiment, the distance between the plurality of 2 nd holes 11B is the same as the distance between the plurality of 1 st holes 11A. However, the present disclosure is not limited thereto. That is, the 1 st sliding device 10 may have, for example, the following structure: (a) a structure in which the distance between the plurality of 2 nd holes 11B is different in size from the distance between the plurality of 1 st holes 11A; or (B) a structure in which the position of the 2 nd hole 11B is shifted from the position of the 1 st hole 11A in the longitudinal direction of the fixed rail 11.
In the above embodiment, the 1 st transmission gear 23A and the 2 nd transmission gear 23B are used as the transmission bodies. However, the present disclosure is not limited thereto. That is, the slide device 10 may have, for example, the following structure: (a) a structure using a transmission belt such as a toothed belt as a transmission body; or (b) a structure using an annular body formed by combining rigid bodies such as chains as a transmission body.
In the above embodiment, the cushioning member 21 made of resin covers the outer edges of the plurality of 1 st holes 11A. However, the present disclosure is not limited thereto. That is, the 1 st sliding device 10 may have, for example, the following structure: (a) a structure not using the cushioning member 21; (b) a structure in which the 1 st to 3 rd protrusions 17A to 19A are covered with a resin; or (c) a structure in which the 1 st to 3 rd protrusions 17A to 19A are made of resin.
The 1 st hole 11A and the 2 nd hole 11B of the above embodiment are formed by through holes. However, the present disclosure is not limited thereto. That is, at least one of the 1 st hole 11A and the 2 nd hole 11B may be formed of, for example, a blind hole recessed in a recessed portion shape, a hole having an inner periphery partially opened (for example, a hole having a slit shape), or the like.
In the above embodiments, the slide device applied to the vehicle seat is exemplified. However, the application of the present disclosure is not limited to this, and the present disclosure may be applied to a seat used in a vehicle such as a railway vehicle, a ship, and an aircraft, and a stationary seat used in a theater, a home, or the like.
The present disclosure is not limited to the above embodiments as long as the present disclosure conforms to the gist of the invention described in the claims. Thus, at least 2 embodiments of the above-described plurality of embodiments may be combined.
Claims (6)
1. A slide device that supports a vehicle seat to be slidable, characterized by comprising:
a fixed rail to be fixed to a vehicle and provided with a plurality of holes in line along a length direction thereof;
a movable rail to which the vehicle seat is to be fixed and which is slidable with respect to the fixed rail; and
a drive unit provided on the movable rail, for sliding the movable rail with respect to the fixed rail, and
the drive unit has a 1 st rotating body, a 2 nd rotating body, and a transmission body,
at least 1 of the 1 st protrusions is provided on the outer peripheral surface of the 1 st rotating body, and at least 1 of the 1 st protrusions is configured to be detachably fitted into the plurality of holes,
the 2 nd rotating body is provided at a position shifted from the 1 st rotating body in the longitudinal direction, and has at least 12 nd protrusion on an outer peripheral surface of the 2 nd rotating body, and at least 1 of the 2 nd protrusions is configured to be detachably fitted into the plurality of holes at a timing different from a timing at which the 1 st protrusion is fitted into any 1 of the plurality of holes by rotating the 2 nd rotating body in a state in which the phase thereof is shifted from that of the 1 st rotating body,
the transmission body is configured to rotate the 1 st rotating body and the 2 nd rotating body in synchronization.
2. Sliding device according to claim 1,
having a 1 st gear part and a 2 nd gear part,
the 1 st gear part is configured to rotate integrally with the 1 st rotating body,
the 2 nd gear part is configured to rotate integrally with the 2 nd rotating body,
the transmission body is a gear that meshes with the 1 st gear portion and the 2 nd gear portion.
3. Sliding device according to claim 2,
the drive unit has a 3 rd rotating body, a 3 rd gear part, and a transmission gear,
the 3 rd rotating body is provided at a position shifted from the 1 st rotating body in the longitudinal direction, the 3 rd rotating body is provided on the opposite side of the 1 st rotating body from the 2 nd rotating body, and the 3 rd rotating body has at least 13 rd protruding portion on the outer peripheral surface thereof, and at least 1 of the 3 rd protruding portions is configured to be detachably fitted into the plurality of holes at a timing different from a timing at which the 1 st protruding portion and the 2 nd protruding portion are fitted into the plurality of holes,
the 3 rd gear part is configured to rotate integrally with the 3 rd rotating body,
the transmission gear is engaged with the 1 st gear part and the 3 rd gear part,
the driving unit is configured such that rotational force is input to the 1 st rotating body or the 1 st gear portion.
4. Sliding device according to one of claims 1 to 3,
a plurality of 2 nd holes are provided in the fixed rail in series along the length direction,
the plurality of 2 nd holes are provided at positions on the opposite side of the plurality of holes with respect to the space where the movable rail slides,
the sliding device comprises a latch member configured to be detachably fitted into any one of the 2 nd holes (1) and configured to restrict sliding of the movable rail and to restrict sliding of the movable rail
The distance between the plurality of 2 nd holes is the same as the distance between the plurality of holes.
5. Sliding device according to one of claims 1 to 3,
a cushioning member made of resin covers outer edges of the plurality of holes.
6. A drive unit for a sliding device having a fixed rail and a movable rail, the drive unit being provided on the movable rail and sliding the movable rail with respect to the fixed rail, wherein
The fixed rail is to be fixed to a vehicle, and the fixed rail is provided with a plurality of holes in line along a length direction thereof,
a vehicle seat to be fixed to the movable rail, and the movable rail being configured to be slidable with respect to the fixed rail,
the drive unit is characterized in that it is,
comprising a 1 st rotating body, a 2 nd rotating body, and a transmission body,
at least 1 of the 1 st protrusions is provided on the outer peripheral surface of the 1 st rotating body, and at least 1 of the 1 st protrusions is configured to be detachably fitted into the plurality of holes,
the 2 nd rotating body is provided at a position shifted from the 1 st rotating body, and has at least 12 nd protrusion on an outer peripheral surface of the 2 nd rotating body, and at least 1 of the 2 nd protrusions is configured to be detachably fitted into the plurality of holes at a timing different from a timing at which the 1 st protrusion is fitted into any 1 of the plurality of holes by rotating the 2 nd rotating body in a state in which the phase of the 2 nd rotating body is shifted from that of the 1 st rotating body,
the transmission body is configured to rotate the 1 st rotating body and the 2 nd rotating body in synchronization.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2018001889A JP7024414B2 (en) | 2018-01-10 | 2018-01-10 | Slide device |
| JP2018-001889 | 2018-01-10 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110027449A CN110027449A (en) | 2019-07-19 |
| CN110027449B true CN110027449B (en) | 2021-08-20 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910006909.0A Active CN110027449B (en) | 2018-01-10 | 2019-01-04 | Sliding device |
Country Status (2)
| Country | Link |
|---|---|
| JP (1) | JP7024414B2 (en) |
| CN (1) | CN110027449B (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP7404850B2 (en) * | 2019-12-19 | 2023-12-26 | トヨタ紡織株式会社 | slide device |
| JP7347285B2 (en) * | 2020-03-23 | 2023-09-20 | トヨタ紡織株式会社 | slide device |
| JP7543668B2 (en) * | 2020-03-23 | 2024-09-03 | トヨタ紡織株式会社 | Slide device |
| CN114537229A (en) * | 2022-03-18 | 2022-05-27 | 湖北航嘉麦格纳座椅系统有限公司 | Slide rail transmission device and vehicle |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH11278121A (en) * | 1998-03-31 | 1999-10-12 | Ikeda Bussan Co Ltd | Flattened seat structure of automobile |
| JP2003063284A (en) * | 2001-08-24 | 2003-03-05 | Aisin Seiki Co Ltd | Powder slide mechanism |
| KR100775370B1 (en) * | 2006-11-10 | 2007-11-12 | 현대자동차주식회사 | Seat width adjusting apparatus of vehicle |
| CN101007512B (en) * | 2006-01-27 | 2011-04-13 | 富士机工株式会社 | Seat slide device |
| JP2017061242A (en) * | 2015-09-25 | 2017-03-30 | トヨタ紡織株式会社 | Slide rail |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5942265Y2 (en) * | 1980-06-21 | 1984-12-10 | 池田物産株式会社 | Vehicle seat sliding device |
| JPH0712162Y2 (en) * | 1990-06-27 | 1995-03-22 | 池田物産株式会社 | Vehicle seat slide device |
| JP2003090407A (en) * | 2001-09-19 | 2003-03-28 | Ryozo Ota | Simultaneously gearing structure for two pinions and rack |
| JP5347651B2 (en) * | 2009-03-30 | 2013-11-20 | アイシン精機株式会社 | Vehicle seat slide device |
-
2018
- 2018-01-10 JP JP2018001889A patent/JP7024414B2/en active Active
-
2019
- 2019-01-04 CN CN201910006909.0A patent/CN110027449B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH11278121A (en) * | 1998-03-31 | 1999-10-12 | Ikeda Bussan Co Ltd | Flattened seat structure of automobile |
| JP2003063284A (en) * | 2001-08-24 | 2003-03-05 | Aisin Seiki Co Ltd | Powder slide mechanism |
| CN101007512B (en) * | 2006-01-27 | 2011-04-13 | 富士机工株式会社 | Seat slide device |
| KR100775370B1 (en) * | 2006-11-10 | 2007-11-12 | 현대자동차주식회사 | Seat width adjusting apparatus of vehicle |
| JP2017061242A (en) * | 2015-09-25 | 2017-03-30 | トヨタ紡織株式会社 | Slide rail |
Also Published As
| Publication number | Publication date |
|---|---|
| JP7024414B2 (en) | 2022-02-24 |
| CN110027449A (en) | 2019-07-19 |
| JP2019119386A (en) | 2019-07-22 |
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