JP4948979B2 - Vehicle seat moving device - Google Patents

Description

  The present invention relates to a vehicle seat moving device for moving a seat back and forth through the opening of a vehicle to facilitate getting on and off of an occupant.

In a welfare vehicle or the like, there is known a vehicle in which a seat is moved back and forth through an opening of a vehicle while an occupant is seated.
In a seat moving device used in this type of vehicle, for example, a slide member fixed to a seat frame is slidably attached to a base member installed on a vehicle body floor via a rotational drive mechanism. It is driven forward and backward by a motor, which is a drive actuator, and a ball screw. Further, as the moving track of the slide member, one that linearly extends obliquely downward from the opening of the vehicle body and one that curves obliquely downward is employed (for example, see Patent Document 1).
JP 2001-1811 A

However, in this conventional seat moving device, when the moving track of the slide member is a track other than a straight track such as a curved track, the seating posture is unstable due to a change in the inclination angle of the seat surface as the seat moves. In addition, it is desired that the inclination angle of the seating surface is appropriately changed according to the movement position of the seat, etc., even when the movement track of the slide member is linear.
In order to stabilize the seating posture, it may be possible to control the inclination angle of the seating surface independently. In this case, in addition to the actuator for seat movement, a dedicated actuator and sensor for seating surface adjustment are required. Therefore, there is a concern that the manufacturing cost will rise significantly.

  Accordingly, the present invention provides a vehicle seat moving device that can reduce the manufacturing cost and stabilize the seat behavior by appropriately controlling the seat movement and the inclination angle of the seating surface with a simple structure. It is what.

The invention according to claim 1, which solves the above-described problem, is a vehicle seat moving device (for example, a vehicle seat moving device that can move at least a part of a seat (for example, a seat 2 in an embodiment described later) from the opening of the vehicle to the outside of the vehicle. A seat moving device 1) in a later-described embodiment, which is a base member (for example, a base member 5 in a later-described embodiment) installed on a vehicle body, and a slide member held by the base member so as to be able to advance and retreat in the vehicle exterior direction. (For example, a slide block 10 in an embodiment described later), a drive actuator (for example, a drive motor 9 in an embodiment described later) that moves the slide member forward and backward with respect to the base member, and a rear end portion on the slide member A seat frame (for example, a seat frame 6 in an embodiment described later) that is pivotally supported in the vicinity of the seat frame, and the seat frame A guide groove (for example, a guide groove 16 in an embodiment described later) that is provided integrally with the side of the frame and extends substantially along the front-rear direction of the seat on the front side of the shaft support position by the slide member. A guide member (for example, a guide member 17 in an embodiment described later) and a front edge portion of the base member on the vehicle opening side, which are slidably or slidably fitted into a guide groove of the guide member. And a guide protrusion member (for example, a guide roller 14 in an embodiment described later), and an inclined surface that is inclined downward by a predetermined angle toward the outside of the vehicle is provided on the upper surface of the base member. Along the inclined surface, the base member is held so as to be able to move forward and backward so as to incline downward by a predetermined angle in the vehicle outward direction. The front end of the seat is inclined downward in the front part so as to be steeper than the inclination of the inclined surface of the base member, and is curved upward so that the inclination becomes gradually gentler toward the rear side of the seat. In the state where the seat frame is in the retracted position, the vertical distance between the guide groove and the seat surface is shorter on the seat rear end side than on the seat front end side. .
As a result, when the slide member moves forward / backward in the forward / backward direction by the operation of the drive actuator, the guide protrusion provided at the front edge of the base member while the vicinity of the rear end of the seat frame receives the forward / backward operating force from the slide member The member rolls or slides in the guide groove of the guide member, and the support position on the front side of the seat frame is controlled by the profile of the guide groove. As a result, the longitudinal displacement of the seat frame is controlled, and the inclination angle of the seat frame is controlled.
Since the support position on the front side of the seat frame changes according to the contact position with the guide projection member on the guide groove, the rear side support position of the seat frame that is pivotally supported by the slide member as the seat frame moves backward The width of the gap is gradually enlarged.

The invention according to claim 2 is a vehicle seat moving device (for example, a seat in an embodiment described later) capable of moving at least a part of a seat (for example, a seat 2 in an embodiment described later) from the opening of the vehicle to the outside of the vehicle. The moving device 101) is a base member (for example, a base member 105 in an embodiment described later) installed on the vehicle body, and a first slide member (for example, described later) held by the base member so as to be able to advance and retreat in the vehicle exterior direction. A first slide block 33), a first drive actuator (for example, a first drive motor 32 in an embodiment described later) for moving the first slide member forward and backward with respect to the base member, and the first An intermediate frame (for example, an intermediate frame 39 in an embodiment described later) that is pivotally supported by the slide member so that the vicinity of the rear end portion thereof is swingable; A guide cam surface (for example, a guide cam surface 38 in an embodiment described later) provided on the base member and extending substantially along the front-rear direction of the seat on the front side of the shaft support position by the first slide member. A first guide member (for example, a cam rail 37 in an embodiment described later) and a guide engagement provided on the intermediate frame and slidably or slidably engaged with a guide cam surface of the first guide member. A member (for example, a first guide roller 41 in an embodiment to be described later), a second slide member (for example, a second slide block 45 in an embodiment to be described later) held by the intermediate frame so as to be able to advance and retreat in the vehicle exterior direction, A second drive actuator (for example, a second drive in an embodiment described later) that moves the second slide member forward and backward with respect to the intermediate frame. 1), a seat frame (for example, a seat frame 6 in an embodiment described later) that is pivotally supported by the second slide member so that the vicinity of the rear end portion thereof is swingable, and a side portion of the seat frame. A second guide member (e.g., a guide groove (e.g., a guide groove 49 in an embodiment described later) provided on the front side of the shaft support position by the second slide member and extending substantially along the front-rear direction of the seat. , A second guide member 50 in an embodiment described later) and a front edge portion on the vehicle outer side of the intermediate frame, and are slidably or slidably fitted in a guide groove of the second guide member. And a guide projection member (for example, a second guide roller 48 in an embodiment described later).
As a result, when the first slide member is moved forward and backward by the operation of the first drive actuator, the vicinity of the rear end portion of the intermediate frame receives the operating force in the forward and backward direction from the first slide member, and the front portion of the intermediate frame The guide engagement member on the side rolls or slides on the guide cam surface of the first guide member on the base member so that the support position on the front side of the intermediate frame is controlled by the profile of the guide cam surface Become. As a result, the longitudinal displacement of the intermediate frame is controlled, and the inclination angle of the intermediate frame is controlled. Further, when the second slide member is moved forward and backward by the operation of the second drive actuator, the vicinity of the rear end portion of the seat frame receives the operating force in the forward and backward direction from the second slide member, and the front edge of the intermediate frame. The provided guide projection member rolls or slides in the guide groove of the second guide member, and the support position on the front side of the seat frame is controlled by the profile of the guide groove. As a result, the longitudinal displacement of the seat frame is controlled, and the inclination angle of the seat frame is controlled.
Since the support position on the front side of the seat frame changes according to the contact position of the guide projection member on the guide groove, the rear side support of the seat frame that is pivotally supported by the second slide member as the seat frame retracts. The separation width from the position is gradually enlarged.

Invention according to claim 3, in the sheet moving device for a vehicle according to claim 2, when advancing and retracting the front and rear sheets through the opening in the vehicle, actuating synchronizing the first drive actuator and the second drive actuator It is characterized by.
Accordingly, the advance / retreat operation of the intermediate frame with respect to the base member and the advance / retreat operation of the seat frame with respect to the intermediate frame are performed in synchronization, and the moving speed of the seat is increased.

According to a fourth aspect of the present invention, in the vehicle seat moving device according to the third aspect of the present invention, at least a front cam surface of the first guide member is inclined at least in a front direction toward the outer side of the seat. A lower inclined region (for example, a lower inclined region 38b in an embodiment described later) is provided, and the seat frame inclination behavior due to the inclination of the intermediate frame following the lower inclined region of the guide cam surface is canceled. The guide track of the guide groove of the two guide members is set.
As a result, when the first drive actuator is operated forward, the vicinity of the rear end of the intermediate frame is pushed forward, and the front side of the intermediate frame is moved to the downward inclined region of the guide cam surface via the guide engaging member. Displaces along. As a result, the intermediate frame is inclined with the front facing downward. At the same time, when the second drive actuator is actuated forward, the support position of the seat frame by the guide protrusion member moves along the guide track of the guide groove of the second guide member so as to cancel the tilt behavior of the seat frame. In addition, the support height on the front side of the seat frame is controlled.

According to a fifth aspect of the present invention, in the vehicle seat moving device according to the fourth aspect , the second drive is performed after the seat is moved to the front end portion by the synchronous operation of the first drive actuator and the second drive actuator. It is characterized in that the actuator is driven independently and the seat surface of the seat is inclined downward in the forward direction.
Accordingly, it is possible to displace the seat surface of the seat into a posture that allows the passenger to easily get on and off by raising the hip point with simple control and lowering the front end of the seat.

According to the first aspect of the present invention, the slide member that pivotally supports the rear end portion of the seat frame so as to be swingable is moved forward and backward by the drive actuator, and the guide protrusion member at the front edge of the base member is moved. Since the inclination angle of the seat frame is controlled by engaging with the guide groove of the guide member, the movement of the seat and the inclination angle of the seating surface can be accurately controlled with a simple structure. Therefore, according to the present invention, it is possible to stabilize the seat operation while suppressing an increase in manufacturing cost.
Further, in the present invention, since the support position on the front side of the seat frame changes according to the contact position with the guide projection member on the guide groove, it has a sufficient support width in the front and rear in a wide slide area of the seat. The sheet can be stably supported and unnecessary moment can be prevented.

Furthermore, according to the first aspect of the present invention, the seat can be lowered in accordance with the forward movement of the slide member, so that the occupant's ability to get on and off can be further improved while having a simple structure.

According to the second aspect of the present invention, the first slide member that pivotally supports the rear end portion of the intermediate frame so as to be swingable is moved forward and backward by the first drive actuator, and the front side of the intermediate frame The second slide member that pivotally supports the rear end of the seat frame so as to be swingable is advanced and retracted in the front-rear direction by the second drive actuator. In addition, the angle of the seat frame is controlled by engaging the guide projection member on the front edge of the intermediate frame with the guide groove of the guide member. It is possible to sufficiently control the sheet moving stroke. Therefore, according to the present invention, it is possible to stabilize the seat and improve the occupant's ability to get on and off while suppressing an increase in manufacturing cost.
Further, in the present invention, since the support position on the front side of the seat frame changes according to the contact position with the guide projection member on the guide groove, it has a sufficient support width in the front and rear in a wide slide area of the seat. The sheet can be stably supported and unnecessary moment can be prevented.

According to the third aspect of the present invention, since the first drive actuator and the second drive actuator are operated synchronously during the forward / backward movement of the seat, the seat moving speed can be increased to achieve rapid boarding / exiting.

According to the fourth aspect of the present invention, when the first actuator and the second actuator are moved forward in synchronization, the intermediate frame is tilted forward along the downward tilt region of the guide cam, and at the same time, the second guide The tilt angle of the seat frame can be controlled so that the tilt behavior of the seat is canceled by the guide by the guide groove of the member, so that the seat descending stroke can be secured sufficiently large and the seating posture of the occupant is stabilized. It can be made.

According to the fifth aspect of the present invention, both the first drive actuator and the second drive actuator are operated synchronously, and then the second drive actuator is operated alone to incline the seat surface of the seat forward. A simple control of the drive actuator can greatly increase the passenger's ability to get on and off.

Embodiments of the present invention will be described below with reference to the drawings.
First, a first embodiment shown in FIGS. 1 to 6 will be described. Note that an arrow OU in the drawing indicates an operating direction of the seat moving apparatus 1 on the vehicle exterior side.
FIG. 1 is a perspective view showing a vehicle to which a seat moving device 1 according to the present invention is applied. The seat moving device 1 is used, for example, in the seat 2 portion on the passenger seat side of the vehicle, and is installed on the floor of the vehicle via a rotary drive unit (not shown). In use, the entire seat moving device 1 including the seat 2 is rotated to the opening 4 side of the door 3 from the initial position where the seat 2 faces the front of the vehicle, and the seat 2 is kept in that state. A forward movement is made toward the outside of the opening 4.

  2 to 6, reference numeral 5 denotes a base member installed on an upper portion of a rotation drive unit (not shown), and reference numeral 6 denotes a seat frame disposed on both sides of the seat 2. On the upper part of the base member 5, an inclined surface 5a inclined downward toward the front side of the seat 2 is provided, and a pair of guide rails 7 and 7 are installed on the inclined surface 5a along the longitudinal direction of the seat, Between the pair of guide rails 7 and 7, a ball screw 8 and a drive motor 9 (drive actuator) for rotationally driving the ball screw 8 are installed. The ball screw 8 is installed on the base member 5 so as to be substantially parallel to the inclined surface 5a of the base member 5. A slide block 10 (sliding member) is slidably fitted to both guide rails 7 and 7, and a screwing portion 11 to be screwed to the ball screw 8 is provided at the center of the slide block 10. Yes. A pair of connecting arms 13 and 13 having circular engagement holes 12 are extended at positions on both sides of the threaded portion 11 on the slide block 10. In addition, guide rollers 14 (guide protrusion members) are rotatably installed on the front edge portions on both sides in the width direction of the base member 5 so that the axis is oriented in a direction parallel to the width direction of the base member 5. .

  A support rod 15 is coupled in the vicinity of the rear end portions of the left and right seat frames 6 and 6 along the seat width direction, and a connection arm 13 of the slide block 10 is swingably connected to the support rod 15. Further, guide members 17 having guide grooves 16 having a constant width substantially along the front-rear direction of the seat 2 are attached to the side surfaces of the left and right seat frames 6, 6. The guide groove 16 is provided on the front side of the connection position of the support rod 15 on the seat frame 6. A guide roller 14 installed at the front edge of the base member 5 is fitted in the guide groove 16 of each guide member 17 so as to be able to roll. Therefore, the left and right seat frames 6, 6 are supported by the base member 5 in the vicinity of the rear end portion via the slide block 10 and the guide rail 7, and on the front side from the guide member 17 and the guide roller 14. Supported through. In the state of FIG. 3 in which the seat 2 is in the retracted position, the guide groove 16 is inclined downward on the front side so that the front end side of the seat is slightly steeper than the inclination of the inclined surface 5a of the base member 5. It is formed to be curved so that the inclination becomes gradually gentler toward the side.

  In the above configuration, when the seat moving device 1 is operated to move the seat 2 on which the occupant is seated to the outside of the vehicle, first, the base member 5 of the seat moving device 1 is attached to the vehicle body by a rotary drive unit (not shown). Rotate to the opening 4 side (state shown in FIGS. 3 and 4).

  Next, the drive motor 9 is operated from this state to advance the slide block 10 as shown in FIG. 5 and FIG. 6, and the seat frame 6 pivotally supported near the rear end by the slide block 10 is moved to the front end. Advance to the position. During this time, the guide member 17 fixed to the seat frame 6 is supported by the guide roller 14 at the front edge of the base member 5 so as to roll freely at the guide groove 16 portion, and the front side of the seat frame 6 has a height according to the guide groove 16. Be controlled. Accordingly, in the state where the seat 2 is pivotally supported by the slide block 10 in the vicinity of the rear end portion of the seat frame 6, the seat 2 is supported by the guide roller 14 on the front side along the guide groove 16. Therefore, the inclination behavior is accurately controlled according to the profile of the guide groove 16 during this period.

  In this embodiment, since the guide rail 7 and the ball screw 8 that guide the slide block 10 are inclined forward and downward, the seat 2 is moved from the opening 4 to the outside of the vehicle by the operation of the drive motor 9. And descends a predetermined amount. Therefore, an occupant who has moved out of the vehicle while seated on the seat 2 can change to a wheelchair or the like at a sufficiently low ground height.

  Further, when the occupant sits on the seat 2 from the outside of the vehicle and rides in, the seat 2 is moved in the reverse direction from the state shown in FIG. It returns to the initial position shown in FIG.

  As described above, the seat moving device 1 has a simple structure having only one drive motor 9, but can accurately control the back-and-forth movement of the seat 2 and the inclination angle of the seating surface. The seat posture can be stabilized while suppressing the soaring.

  Further, in the case of the seat moving device 1, the support position on the front side of the seat frame 6 changes according to the contact position between the guide roller 14 and the guide groove 16, and in the wide moving region before and after the seat frame 6, The sheet 2 can be stably supported on the base member 5 with a sufficient support interval. Thereby, it is possible to prevent a large moment from being generated in the support portion of the seat 2 and to avoid an unnecessary load from acting on the constituent members.

Next, a second embodiment shown in FIGS. 7 to 13 will be described. The same parts as those in the first embodiment are denoted by the same reference numerals, and a part of the description of the overlapping parts is omitted.
In the seat moving device 101 of this embodiment, a base member 105 is attached to an upper portion of a rotation drive unit (not shown) as in the first embodiment, and seat frames 6 and 6 are attached to the base member 105 at an opening of a vehicle body. 4 can be moved forward and backward from the vehicle.

  As shown in FIG. 10, a pair of guide rails 30, 30 are installed on the upper surface of the base member 105, and a ball screw 31 and the ball screw 31 are rotationally driven between the guide rails 30, 30. A first drive motor 32 (first drive actuator) is installed for this purpose. A first slide block 33 (first slide member) is slidably fitted to both guide rails 30, 30, and a screw portion 34 (see FIG. 10) at the center of the first slide block 33 is a ball screw 31. Are screwed together. A connection arm 36 having a circular engagement hole 35 is provided on the upper surface of the first slide block 33.

  In addition, cam rails 37 (first guide members) along the seat front-rear direction are provided on the outer surface of the base member 105 in the width direction of both guide rails 30, 30. As shown in FIGS. 7 and 10, each cam rail 37 has a horizontal region 38 a that is substantially in the center in the longitudinal direction, and a lower inclined region 38 b that is inclined downward toward the front on the front side of the horizontal region 38 a. A substantially trapezoidal guide cam surface 38 is provided.

  An intermediate frame 39 having side walls 39a on both sides in the width direction is provided above the base member 105, and a support rod 40 extending in the width direction of the intermediate frame 39 is coupled between the side walls 39a and 39a of the intermediate frame 39. Has been. The support rod 40 is disposed in the vicinity of the rear end portion of the intermediate frame 39, and a connection arm 36 on the first slide block 33 is connected to be swingable. A first guide roller 41 (guide engaging member) that rolls on the guide cam surface 38 of each cam rail 37 is rotatable in front of the support rods 40 on both side walls 39a and 39a of the intermediate frame 39. Is provided. Accordingly, the intermediate frame 39 is pressed by the first slide block 33 at the support rod 40 portion on the rear end side, and the first guide roller 41 disposed in front of the support rod 40 rolls on the cam rail 37. The posture in the front-rear direction is controlled by moving.

  Further, as shown in FIGS. 7 and 9, a pair of guide rails 42, 42 are provided on the upper surface side of the intermediate frame 39 along the front-rear direction of the seat. A second drive motor 44 (second drive actuator) for rotationally driving the ball screw 43 is installed. A second slide block 45 is slidably fitted to the guide rails 42, 42, and a screw portion 46 (see FIG. 9) at the center of the second slide block 45 is screwed to the ball screw 43. Further, a connecting arm 47 projects from the upper surface of the second slide block 45, and this connecting arm 47 is swingably connected to the support rod 15 in the vicinity of the rear end portion of the seat frame 6. In addition, second guide rollers 48 (guide protrusion members) are provided on the front edges of both side portions on the upper surface side of the intermediate frame 39.

  On the other hand, on the side surfaces of the left and right seat frames 6, 6, a second guide member 50 having a guide groove 49 extending substantially along the seat front-rear direction is attached, and the guide groove 49 of each second guide member 50 is attached. A second guide roller 48 on the side of the intermediate frame 39 is fitted in the inside so as to be able to roll. The guide groove 49 of the second guide member 50 is located on the front side of the support rod 15 of the seat frame 6. Further, when the sheet moving device 101 is in the state shown in FIG. 7, the guide groove 49 is gently inclined from the substantially central portion in the longitudinal direction toward the front and the rear, and the rear end side becomes substantially horizontal. Is formed. In the following, the inclined area on the front side of the approximate center on the guide groove 49 is referred to as “front inclined area 49a”, the inclined area on the rear side is referred to as “rear inclined area 49b”, and the substantially horizontal area on the rear end. Are referred to as “horizontal regions 49c”, respectively.

  In the above configuration, when the seat moving device 101 is operated to move the seat 2 to the outside of the vehicle, the base member 105 is rotated toward the opening 4 side of the vehicle body by a rotation driving unit (not shown) The first drive motor 32 and the second drive motor 44 are operated synchronously from the initial state shown in FIG.

  As a result, the first slide block 33 on the base member 105 and the second slide block 45 on the intermediate frame 39 are moved forward along the guide rails 30 and 42, respectively, and the slide blocks 33 and 45 are connected to the connecting arms 36 and 47, respectively. The vicinity of the rear end portions of the intermediate frame 39 and the seat frame 6 (support rods 40 and 15) is pressed in the forward direction via the. When the intermediate frame 39 is pressed in the forward direction in this way, the intermediate frame 39 moves forward about the support rod 40 and the first guide roller 41 positioned forward of the support rod 40 has a guide cam surface 38 of the cam rail 37. Roll forward on top.

In the initial state shown in FIG. 8, the first guide roller 41 is on the horizontal region 38a of the guide cam surface 38. From this state, the first guide roller 41 rolls on the horizontal region 38b until the intermediate frame 39 moves forward by a set amount. Move. Therefore, the intermediate frame 39 moves forward while maintaining the initial posture during this period.
On the other hand, the second guide roller 48 is in the position of the front end of the guide groove 49 in the initial state shown in FIG. 8, and the front inclined region 49a of the guide groove 49 from this state until the seat frame 6 moves forward by a set amount. Rolls backward along a gentle uphill slope. Note that the inclination of the front inclined area 49a at this time is set to be substantially the same as the inclination angle of the intermediate frame 39 itself in the initial state. Therefore, the seat 2 (seat frame 6) is maintained in a substantially constant posture during this time.

  When the forward movement of the first slide block 33 proceeds and the first guide roller 41 enters the downward inclined area 38a on the surface of the guide cam 38 as shown in FIG. 11, the front portion of the intermediate frame 39 by the first guide roller 41 The side support position gradually lowers with respect to the rear side support position by the first slide block 33. As a result, as shown in FIG. 12, the inclination angle of the intermediate frame 39 to the front lower side increases.

  During this time, when the rotation of the second drive motor 44 proceeds, the second slide block 45 moves obliquely downward on the front side as shown in FIGS. Is moved forward by more than the set amount, the rolling position of the second guide roller 48 on the guide groove 49 moves from the front inclined area 49a of the guide groove 49 to the rear inclined area 49b and further to the horizontal area 49c. In the meantime, the front side of the seat frame 6 is gradually pushed upwards around the support position (support rod 15) by the second slide block 45. However, during this time, the intermediate frame 39 that supports the second slide block 45 is inclined downward toward the front side as described above, so that the inclination angle of the seat frame 6, that is, the angle of the seating surface of the seat 2 is substantially constant. This is maintained (see FIGS. 11 and 12).

  Both the drive motors 32 and 44 are temporarily stopped when the sheet 2 moves to the final movement position, and if necessary, only the second drive motor 44 is reversely driven by a minute set amount immediately after that. As a result, as shown in FIG. 13, the rear end side of the seat frame 6 is pulled up while rolling the second guide roller 48 in the horizontal region 49c of the guide groove 49 while the inclination angle of the intermediate frame 39 is kept constant. Thus, the front end side of the seat frame 6 is slightly inclined downward. As a result, the seat surface of the seat 2 is slightly lowered forward and is maintained in a posture in which the passenger can easily get on and off. Therefore, in this apparatus 101, the passengers can get on and off by simple control of both drive motors 32 and 44.

  Further, when the seat 2 moved to the outside of the vehicle as described above is returned to the original position, the second drive motor 44 is rotated forward slightly to return the seat surface of the seat 2, and then both the drive motors 32 are driven. , 44 are synchronized and rotated in the opposite direction. As a result, each unit operates in the opposite direction to that described above, and the sheet moving apparatus 101 is returned to the expected state shown in FIG.

  As described above, even in the case of the seat moving device 101, it is possible to accurately control the back-and-forth movement of the seat 2 and the inclination angle of the seating surface while having a simple structure having only the first and second drive motors 32 and 44. Therefore, it is possible to stabilize the seat posture while suppressing an increase in manufacturing cost. Further, in the seat moving device 101, since the seat 2 is moved by the two-stage sliding operation by both the drive motors 32, 44, a sufficient moving distance of the seat 2 to the outside of the vehicle is ensured, and passengers can get on and off. Can be further enhanced.

  Also in the case of the seat moving device 101, the support position on the front side of the seat frame 6 changes according to the contact position between the second guide roller 48 and the guide groove 49, and in a wide moving region before and after the seat frame 6. The seat 2 can be stably supported on the intermediate frame 39 with a sufficient support interval between the front and rear. For this reason, it can prevent that a big moment generate | occur | produces in the support part of the sheet | seat 2, and can avoid that unnecessary load acts on a structural member.

  Further, in the seat moving device 101, the first and second drive motors 32 and 44 are operated synchronously when the seat 2 is advanced and retracted. There is an advantage that getting on and off can be realized.

  Further, in this apparatus 101, the intermediate frame 39 is inclined forward along the downward inclined area 28b of the guide cam surface 38, and at the same time, the front / rear inclination of the seat frame 6 is canceled by the profile of the guide groove 49 of the second guide member 50. As a result, it is possible to sufficiently secure the movement distance of the seat 6 in the vertical direction without causing a change in the seat posture.

  In addition, this invention is not limited to said embodiment, A various design change is possible in the range which does not deviate from the summary. For example, in each of the above-described embodiments, the guide rollers 14 and 48 are employed as the guide protrusion members fitted into the guide grooves 16 and 49 of the guide members 17 and 50. However, the sliding members are replaced with the guide rollers. It is also possible to use.

The perspective view of the vehicle which employ | adopted the sheet | seat movement apparatus of embodiment of this invention. The disassembled side view of the sheet | seat movement apparatus of 1st Embodiment of this invention. The side view of the sheet | seat movement apparatus of the embodiment. The top view which made a part of sheet movement device of the embodiment a section. The side view of the sheet | seat movement apparatus of the embodiment. The side view of the sheet | seat movement apparatus of the embodiment. The disassembled side view which made the one part block of the sheet | seat movement apparatus of 2nd Embodiment of this invention the cross section. The side view of the sheet | seat movement apparatus of the embodiment. The top view which made a part of sheet movement device of the embodiment a section. The top view which removed the intermediate | middle frame of the sheet | seat movement apparatus of the embodiment. Side view of the sheet moving device of the embodiment Side view of the sheet moving device of the embodiment Side view of the sheet moving device of the embodiment

Explanation of symbols

DESCRIPTION OF SYMBOLS 1,101 ... Sheet moving device 2 ... Seat 5,105 ... Base member 6 ... Seat frame 9 ... Drive motor (drive actuator)
10 ... Slide block (slide member)
14 ... Guide roller (guide protrusion member)
16 ... Guide groove 17 ... Guide member 32 ... First drive motor (first drive actuator)
33. First slide block (first slide member)
37. Cam rail (first guide member)
38 ... Guide cam surface 38b ... Downward inclined region 39 ... Intermediate frame 41 ... First guide roller (guide engaging member)
44 ... Second drive motor (second drive actuator)
45. Second slide block (second slide member)
48 ... Second guide roller (guide protrusion member)
49 ... Guide groove 50 ... Second guide member

Claims (5)

A vehicle seat moving device capable of moving at least a part of a seat to the outside of a vehicle from an opening of the vehicle,
A base member installed on the vehicle body;
A slide member held by the base member so as to be able to move forward and backward in the vehicle direction;
A drive actuator for moving the slide member forward and backward with respect to the base member;
A seat frame that is pivotally supported by the slide member so that the vicinity of the rear end portion is swingable;
A guide member provided integrally with the side portion of the seat frame and having a guide groove extending substantially along the front-rear direction of the seat on the front side of the pivot support position by the slide member;
A guide protrusion member provided at a front edge portion of the base member on the opening side of the vehicle, and fitted into the guide groove of the guide member so as to be freely rollable or slidable;
Equipped with a,
An inclined surface inclined downward by a predetermined angle toward the outside of the vehicle is provided on the upper surface of the base member, and the slide member is held so as to be able to advance and retreat in the base member so as to incline downward by a predetermined angle along the inclined surface toward the vehicle exterior. And
In the state where the seat frame is in the retracted position, the guide groove is inclined downward on the front side so that the front end side of the seat is steeper than the inclination of the inclined surface of the base member, and as it goes toward the rear side of the seat It is formed by bending upward so that the inclination becomes gradually gentler,
In a state in which the seat frame is in the retracted position, a vertical distance between the guide groove and a seat seating surface is shorter on the seat rear end side than on the seat front end side . Sheet moving device. A vehicle seat moving device capable of moving at least a part of a seat to the outside of a vehicle from an opening of the vehicle,
A base member installed on the vehicle body;
A first slide member held by the base member so as to be able to move forward and backward in the vehicle direction;
A first drive actuator for moving the first slide member forward and backward with respect to the base member;
An intermediate frame that is pivotally supported by the first slide member so that the vicinity of the rear end portion is swingable;
A first guide member provided on the base member and having a guide cam surface extending substantially along the front-rear direction of the seat on the front side of the axial support position by the first slide member;
A guide engagement member provided on the intermediate frame and slidably or slidably engaged with a guide cam surface of the first guide member;
A second slide member held by the intermediate frame so as to be capable of moving forward and backward in the vehicle direction;
A second drive actuator for moving the second slide member forward and backward with respect to the intermediate frame;
A seat frame that is pivotally supported by the second slide member so that the vicinity of the rear end portion thereof is swingable;
A second guide member provided integrally with the side portion of the seat frame, and having a guide groove extending substantially along the front-rear direction of the seat on the front side of the shaft support position by the second slide member;
A guide projection member provided at a front edge portion of the intermediate frame on the vehicle outer side and slidably or slidably fitted in a guide groove of the second guide member;
A vehicle seat moving device comprising: The vehicle seat movement device according to claim 2, wherein when the seat is moved forward and backward through the opening of the vehicle, the first drive actuator and the second drive actuator are operated synchronously. Provided at least on the front side of the guide cam surface of the first guide member is a lower inclined region that is inclined downward in the moving direction of the seat outside the vehicle, and an intermediate frame that follows the lower inclined region of the guide cam surface. The vehicle seat movement device according to claim 3, wherein a guide track of the guide groove of the second guide member is set so that the inclination behavior of the seat frame due to the inclination is canceled. After the seat is moved to the front end portion by the synchronous operation of the first drive actuator and the second drive actuator, the second drive actuator is driven alone to tilt the seat surface of the seat forward and downward. The vehicle seat moving device according to claim 4.

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