JP2011042289A - Seat device for vehicle - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a seat device for a vehicle having high reliability and safety without the possibility of looseness and deformation due to a secular use in a slide projecting part and having excellent assembling work efficiency. <P>SOLUTION: This seat device includes a movable seat cushion frame 21, a rotatable seat back frame, a pair of right and left link members 41 rotatably connected to a vehicle floor 9 and a front end part of the seat cushion frame 21, a guide member 51 formed with a guide groove 55 and the slide projecting part (slide pin 7) disposed at a rear end part of the set cushion frame 21 and slidably engaged to the guide groove 55. The slide projecting part 7 is provided integrally with the seat cushion frame 21. The guide member 51 includes a rear end opening part 53 for opening the guide groove 55 backward and a reinforcing bracket 54 for enhancing mechanical strength of the rear end opening part 53. <P>COPYRIGHT: (C)2011,JPO&amp;INPIT

Description

The present invention relates to a vehicle seat device in which a seat back and a seat cushion can be stored side by side.

In vehicles that can load both passengers and luggage, such as one-box cars and minivans, a structure is adopted in which the luggage compartment for loading luggage can be expanded by storing the rear seats. For example, the vehicle seat device disclosed in Patent Document 1 retracts the seat cushion from the use position to the storage position, and further rotates the seat back from the standing position to the forward position to store the entire seat device. It can be done. The seat device includes a pair of left and right link members, one end of which is rotatably connected to the vehicle floor and the other end of which is rotatably connected to the front end of the seat cushion frame. A guide member having a guide groove; and a slide protrusion provided at a rear end portion of the seat cushion frame and engaged with the guide groove. As the link member rotates, the slide protrusion slides in the guide groove, and the seat cushion frame moves backward.
The operation of this type of seat device includes a manual type operated by a passenger and an electric type using an electric motor. In the electric type, a plurality of electric motors are usually used to drive the seat back and the seat cushion, respectively.

Moreover, in patent document 1, generation | occurrence | production of the noise when a slide protrusion part slides a guide groove is prevented,
In order to operate the seat cushion smoothly and to prevent rattling at the use position and the storage position, the guide groove is formed by a guide shoe having an elastic deflection portion.

JP 2008-285025 A

By the way, in the vehicle seat device of Patent Document 1, the slide protrusions are respectively provided on the left and right of the rear end portion of the seat cushion frame and engaged with the guide grooves of the pair of left and right guide members, respectively. As shown in FIG. 11 of Patent Document 1, the slide protrusion is manufactured separately from the seat cushion frame. Then, at the time of assembling work, the slide cushion is inserted and screwed into the seat cushion frame disposed between the left and right guide members so as to pass through the guide grooves from both sides. With such a screwed assembly structure, there is no risk of loosening or deformation of the slide projection due to repeated stresses caused by aging, for example, impact loads when sitting on the occupant or moving the seat cushion.
Therefore, it is preferable to improve the mechanical strength to further improve reliability and safety. Also,
The place for screwing assembly is narrow, and the assembly workability is not good.

In addition, if the accuracy of the outer dimensions and mounting position of the guide shoe placed in the guide groove is low, the seat cushion will not operate smoothly, causing impact and noise during operation, and rattling at the use and storage positions. May occur. On the other hand, when trying to improve the accuracy of the guide shoe, the mounting structure tends to be complicated, or the mounting tends to be troublesome.

The present invention has been made in view of the above problems, and has a higher mechanical strength of the slide protrusion than before, high reliability and safety with no risk of loosening or deformation due to aging, and assembly workability. It is an object to be solved to provide a vehicular seat device with good quality.

The invention of a vehicle seat apparatus according to claim 1 that solves the above-described problems comprises a seat cushion frame that constitutes a seat cushion and is movable between a use position and a retracted position, and a seat back that constitutes a seat back, and a standing position and a forward tilt. A pair of left and right link members, one end of which is pivotally connected to the vehicle floor and the other end of which is pivotally connected to the front end of the seat cushion frame; A guide member disposed on the vehicle floor and having a guide groove formed between the use position and the storage position; and a guide member disposed at a rear end portion of the seat cushion frame and slidable in the guide groove of the guide member A vehicle-mounted seat device, wherein the seat back and the seat cushion can be stored side by side, The projecting portion is provided integrally with the seat cushion frame, and the guide member has a rear end opening portion that opens the guide groove rearward, and a reinforcing bracket that increases the mechanical strength of the rear end opening portion. Features.

Here, the fact that the slide protrusion is integrally provided on the seat cushion frame means that the slide protrusion is firmly connected to the seat cushion frame, for example, by caulking or welding, and is detachably assembled by fastening bolts or the like. Excluded.

The invention according to claim 2 is that in claim 1, the inner peripheral surface of the upper edge and the inner peripheral surface of the lower edge forming the guide groove are respectively covered with an upper guide shoe and a lower guide shoe made of resin, The sliding protrusion has a sliding member made of resin on the outside, and the interval between the inner peripheral surfaces of the upper guide shoe and the lower guide shoe becomes narrow at the rear end opening portion, and the groove width of the guide groove is reduced. The upper guide shoe, the lower guide shoe, and the sliding member are engaged with each other without a gap.

The invention according to claim 3 is the invention according to claim 2, wherein the upper guide shoe and the lower guide shoe are alternately arranged on both side surfaces of the upper edge portion and both side surfaces of the lower edge portion in the length direction of the guide groove. A plurality of locking claw portions that are arranged and locked to engaging portions provided at the upper edge portion and the lower edge portion of the guide groove are formed, respectively.

According to a fourth aspect of the present invention, in any one of the first to third aspects, the seat cushion frame is reciprocated by an electric motor between the use position and the storage position, and the seat back frame is It is characterized in that it is rotationally driven by an electric motor between the standing position and the forward position.

In the invention of the vehicle seat device according to the first aspect, the slide protrusion is provided integrally with the seat cushion frame and is firmly coupled so as not to be removed. Therefore, the slide projection of the present invention has a mechanical strength greater than that of the conventional one that is screwed into the frame, and will not loosen even after repeated impact loads such as when sitting on the occupant or moving the seat cushion. There is no risk of deformation, and reliability and safety are further improved. Moreover, the guide groove of the guide member with which the slide protrusion is engaged is opened at the rear end opening portion. Therefore, after assembling the slide protrusion integrally with the seat cushion frame in advance, the slide protrusion can be easily assembled by engaging with the guide groove from the rear end opening portion, and the assembling workability is good. Furthermore, since the rear end of the guide member is in an open state and the guide groove may be opened or closed, a reinforcing bracket is attached, so that the mechanical strength of this portion is equivalent to that of the conventional case.

In the invention according to claim 2, the upper edge portion and the lower edge portion forming the guide groove of the guide member are respectively covered with the resin upper guide shoe and the lower guide shoe, and the resin sliding is provided outside the slide protrusion. A member is provided. Therefore, the resins slide while moving the seat cushion, the operation becomes smooth, and the generated impact and noise are suppressed. Further, since the gap between the upper and lower guide shoes becomes narrow at the rear end opening portion and engages with the sliding member without any gap, rattling of the stored seat cushion is prevented. Further, the guide shoe divided into two parts in the vertical direction is easy to manufacture, has high shape accuracy, and is easy to attach to the guide member.

In the invention according to claim 3, the upper guide shoe and the lower guide shoe are alternately arranged on both side surfaces of the upper edge portion and the lower edge portion in the length direction of the guide groove, and the upper edge portion and the lower edge portion of the guide groove. A plurality of locking claws that are locked to the engaging portions are respectively formed. Therefore, the mounting dimension accuracy of the guide shoe is high, and it is only necessary to lock the locking claw portions arranged alternately in order at the time of mounting, so that the assembling workability is very good.

In the invention according to claim 4, the seat cushion frame and the seat back frame are:
Driven by each electric motor. The present invention can be applied to an electric vehicle seat device.

It is a side view of the whole structure of the vehicle seat apparatus of embodiment, and the use condition which can be seated is shown. In embodiment, it is a side view of the vehicle seat apparatus of a retracted state. In embodiment, it is a perspective view explaining a seat cushion frame and a base part. In embodiment, it is a figure explaining a seat cushion frame, (1) is a top view, (2) is a side view. In an embodiment, it is a figure explaining a slide support part and a slide pin (slide protrusion) of a seat cushion frame, (1) is an expansion perspective view and (2) is a ZZ cut view of (1). In an embodiment, it is a figure explaining an upper guide shoe and a lower guide shoe, (1) is a whole perspective view, (2) is a locking claw part enlarged view of the B section in a whole perspective view, and (3) is a whole perspective view. It is the rear end enlarged view of the A section in the figure.

A vehicle seat device according to an embodiment of the present invention will be described with reference to FIGS. FIG. 1 is a side view of the overall configuration of the vehicle seat device 1 according to the embodiment. The seat cushion 2 is pulled out to a front use position P21, and the seat back 3 is rotated to a standing position P31 to be seated. The usage status is shown. FIG. 2 is a side view of the vehicle seat device 1 in a retracted state in which the seat cushion 2 is stored in the rear storage position P22 and the seat back 3 is rotated to the forward position P32. The vehicle seat device 1 is a rear seat of a one-box type or minivan type automobile, and as shown in the figure, a storage chamber 91 that forms a storage position P22.
Is installed on the upper side of the vehicle floor 9 having The vehicle seat device 1 includes a pair of left and right link members 4 for moving the seat cushion 2, the seat back 3, and the seat cushion 2.
1, 41 and a pair of left and right guide members 51, 51, a base portion 8, and the like.

The base portion 8 is a part that is integrally attached to the vehicle floor 9. FIG. 3 is a perspective view illustrating the seat cushion frame 21 and the base portion 8. As shown in the figure, the base portion 8 is configured by integrally coupling a right base member 81 and a left base member 82 and three connecting base members 83, 84, 85 that connect the left and right base members 81, 82. Has been. The left and right base members 81 and 82 extend in parallel to the vehicle front-rear direction at an interval substantially corresponding to the seat width. A front end connection base member 83, a front connection base member 84, and a rear connection base member 85 are provided by connecting front ends, front ends, and rear ends of the left and right base members 81, 82, respectively. Each of the base members 81 to 85 is formed by bending or drilling based on a metal plate material.

A total of four fixing holes 86 (only the front ends are shown) are formed near the front ends and the rear sides of the left and right base members 81 and 82, and can be fixed to the vehicle floor 9 using fixing bolts. On the outside of the center of each of the left and right base members 81, 82, pivot support members 87, 87 that pivotably support the seat back 3 are erected, from the inward position of the pivot support member 87 to the rear end. Guide members 51 and 51 are erected. Further, the front connection base member 84 is provided with a rotation support member 88 that rotatably supports the pair of left and right link members 41 and 41.

The seat cushion 2 on which an occupant sits has a seat cushion frame 21 that constitutes a skeleton thereof. FIG. 4 is a view for explaining the seat cushion frame 21. (1)
Is a plan view, and (2) is a side view. As shown in the figure, the seat cushion frame 21 includes a pair of left and right substantially pipe-shaped extending portions 22, 22 extending along the front-rear direction on the left and right sides of the seat cushion 2. The rear end portions of the pair of extending portions 22 and 22 are bent so as to face inward, and are connected by a substantially pipe-shaped rear end connecting portion 23 extending along the vehicle width direction. Further, the front end portions of the extending portions 22 and 22 are bent so as to face inward, and are connected by a plate-like front end connecting portion 24. That is, the seat cushion frame 21 is formed in a substantially square shape when viewed from above. An elastically deformable cushion pad (not shown) is attached to the upper side of the seat cushion frame 21, and the surface of the cushion pad is covered with a skin material.

Further, a slide support portion 2 projecting outward rearward is provided at a rear end portion of the pair of extending portions 22 and 22.
The slide pins 7 corresponding to the slide protrusions are integrally provided at the rear ends of the slide support portions 25 and 25 provided with 5 and 25.

FIG. 5 is a view for explaining the slide support portion 25 and the slide pin 7 of the seat cushion frame 21, (1) is an enlarged perspective view, and (2) is a ZZ cut view of (1). The slide support portion 25 is formed by two plate members 251 and 255 that are stretched outwardly from the extending portion 22. As shown in FIG. 5 (2), the plate members 251 and 255 are formed with fixing holes 252 and 256 through which the shaft-like slide pins 7 arranged in the vehicle width direction pass. The inner diameter D1 of the fixing hole 252 of the outer plate member 251 is larger than the inner diameter D2 of the fixing hole 256 of the inner plate member 255.

On the other hand, the slide pin 7 includes a shaft body 71 having a step in the outer diameter, and a substantially cylindrical resin-made sliding member 76 that circulates outside the shaft body 71. The shaft body 71 has a large-diameter flange 72, a large-diameter portion 73 that fits into the inner diameter D1 of the fixing hole 252 of the outer plate member 251 with almost no gap, and an inner diameter D2 of the fixing hole 256 of the inner plate member 255 with almost no gap. It is comprised by the small diameter part 74 to do. The substantially cylindrical sliding member 76 is disposed on the outer periphery of the large-diameter portion 73 of the shaft body 71, and the outer plate member 251.
The thick portion 77 is in contact with the thick portion 77, and the thin portion 78 is formed from the thick portion 77 toward the flange portion 72 of the shaft body 71.

In manufacturing this part, first, the sliding member 76 is set on the shaft body 71, and then the fixing holes 252 and 256 of the outer and inner plate members 251 and 255 are sequentially penetrated from the direction of arrow P in FIG. Finally, the small diameter portion 74 of the shaft body 71 is pressed and fixed from the Q direction in the figure. Then, the small-diameter portion 74 of the shaft body 71 expands and deforms as shown by the broken line R in the drawing, and the slide pin 7 is integrated with the slide support portion 25 and is firmly coupled so as not to be removed. Further, as shown in the drawing, the distance between the stepped portion of the thick portion 77 and the thin portion 78 and the flange portion 72 of the shaft body 71 is the sliding width W. Within this sliding width W, the outer peripheral surface of the thin portion 78 of the sliding member 76 slides with an upper guide shoe 56 and a lower guide shoe 57 described later.

Returning to FIGS. 1 to 3, the pair of left and right link members 41 and 41 are members that rotatably connect and support the front end portion of the seat cushion 2 to the base portion 8 on the vehicle floor. One end side 43 below the link member 41 is rotatably connected to a rotation support member 88 on the front connection base member 84 of the base portion 8. As shown in FIG. 1, the other end side 44 above the link member 41 is rotatably connected to a drive gear mechanism 45 disposed below the front side of the seat cushion frame 21. Further, a seat cushion drive motor 46 is disposed below the seat cushion frame 21. The seat cushion drive motor 46 is controlled by a control unit (not shown), and its output torque rotates the link member 41 via the drive gear mechanism 45.

The pair of left and right guide members 51, 51 are members that slidably support the slide pin 7 of the seat cushion frame 21. The guide member 51 is provided on the left and right base members 8 of the base portion 8.
1 and 82 erected from substantially the center to the rear end, and has a guide groove 55. Guide groove 55
Is gently lowered from the front to the middle of the guide member 51, is formed substantially horizontally from the middle to the rear, and is opened rearward by the rear end opening portion 53. As shown in FIG. 3, the rear end opening 53 is welded to a metal reinforcing bracket 54 that sandwiches the upper and lower edges of the guide member 51 to increase the mechanical strength.

The inner peripheral surfaces of the upper edge and the lower edge forming the guide groove 55 are respectively covered with an upper guide shoe 56 and a lower guide shoe 57 made of resin. FIG. 6 is a view for explaining the upper guide shoe 56 and the lower guide shoe 57, (1) is an overall perspective view,
2) is an enlarged view of a locking claw at a portion B in the overall perspective view, and (3) is an enlarged view of the rear end of the portion A in the overall perspective view. As shown in the figure, the upper and lower guide shoes 56, 57 are bent and molded so as to be closely attached along the upper edge and the lower edge of the guide groove 55 of the guide member 51, and the cross-section is the edge. It is U-shaped so as to sandwich the Further, when the upper guide shoe 56 and the lower guide shoe 57 are attached to the guide member 51, the distance between them is larger than the outer diameter D 3 of the slide member 76 of the slide pin 7.

Furthermore, six upper claw portions 58 and four lower guide shoes 57 are provided on the opposite side surfaces of the edge portion in the length direction. Each locking claw 58
A locking projection 59 is projected from the tip of the projection on the surface that contacts the guide member 51. On the other hand, each of the corresponding portions of the guide member 51 facing each of the locking projections 59 is an engagement hole 5 corresponding to the engagement portion.
2 (partially shown in FIG. 3). And the latching protrusion 59 of the front-end | tip of each latching claw part 58 is carried out.
The upper guide shoe 56 and the lower guide shoe 57 can be attached to the guide member 51 by inserting and engaging the engagement holes 52 in the engagement holes 52.

Further, as shown in FIG. 6 (3), the rear end portion of the upper guide shoe 56 is provided with a lower protrusion 561 that protrudes downward and a side protrusion 562 that protrudes laterally. Due to the lower protrusion 561, the distance between the upper guide shoe 56 and the lower guide shoe 57 is narrowed at the rear end opening portion 53, and becomes substantially equal to the outer diameter D 3 of the sliding member 76 of the slide pin 7. Further, due to the side protrusions 562, the width of the upper guide shoe 56 partially expands and becomes substantially equal to the sliding width W of the slide pin 7.

The seat back 3 that supports the back of the passenger is a seat back frame 3 that constitutes the skeleton thereof.
1 The seat back frame 31 includes a pair of left and right side portions 32 extending in the vertical direction in both sides of the seat back 3 in the width direction. A pair of side portions 32
, 32 are formed in a plate shape, and are arranged in a state where the plate thickness direction is along the vehicle width direction. Each upper end portion of the pair of side portions 32, 32 has a pipe-like connecting portion 33 extending along the vehicle width direction.
The seat back frame 31 is formed in a substantially U-shape that opens downward in a front view. The lower ends of the side portions 32, 32 are respectively arranged between the pivot support member 87 and the guide member 51 on the left and right outer sides of the seat back 3, and rotate to the pivot support member 87 via the support shaft 871. It is pivotally supported. Further, a back pad (not shown) that can be elastically deformed is attached to the seat back frame 31 via a back mat (not shown), and the surface of the back pad is covered with a skin material.

A reclining device 34 is provided between the lower end portion of one side portion 32 of the seat back 3 and the pivot member 87 as shown in FIG. The reclining device 34 has a seat back drive motor 35, and adjusts the inclination angle of the seat back 3 at the standing position P31. Further, the seat back drive motor 35 is controlled by a control unit (not shown), and the output torque of the seat back drive motor 35 is raised from the reclining device 34 to the upright position P.
Rotation operation is performed between 31 and the forward position P32.

Next, the operation and action of the vehicle seat device 1 according to the embodiment will be described with reference to the case of the storage operation. When the storage command is transmitted to the control unit in the usage state shown in FIG. 1, the control unit first supplies power to the seat cushion drive motor 46. Then, the output torque of the seat cushion drive motor 46 drives the link member 41 via the drive gear mechanism 45, and the other upper end side 44 of the link member 41 rotates backward about the lower end side 43. To do. At the same time, the slide pin 7 slides between the upper and lower guide shoes 56, 57 and moves rearward, so that the seat cushion 2 is moved rearward. At this time, the slide pin 7 is
Since there is a gap between the upper and lower guide shoes 56, 57 and the resin slides, the operation is smooth.

The rearward movement of the seat cushion 2 reaches the storage position P22 in the storage chamber 91 and ends. At this time, the slide pin 7 reaches the rear end of the upper guide shoe 56, and the sliding member 76 of the slide pin 7 reaches the lower protrusion 561 of the upper guide shoe 56 and is locked without a gap. Further, the side protrusion 562 of the upper guide shoe 56 enters the sliding width W of the slide pin 7 without a gap. Therefore, the seat cushion 2 does not rattle in the vertical direction or the vehicle width direction at the storage position P22.

Next, the control unit supplies power to the seat back drive motor 35. Then, the output torque of the seat back drive motor 35 rotates the seat back 3 from the standing position P31 to the forward tilt position P32 via the reclining device 34.

Here, the storage chamber 91 is provided on the lower side of the deck board 93 constituting the floor portion of the cargo chamber 92. As shown in FIG. 2, the back surface of the seat back 3 at the forward position P <b> 32 is arranged in front of the stored seat cushion 2 and at substantially the same height as the upper surface of the deck board 93. Further, a pivot board 94 formed in a plate shape is provided at the front end of the deck board 93.
Are connected via a hinge pin 95 so as to be rotatable. In the state of FIG. 1 in which the seat back 3 is held at the standing position P31, the rotating board 94 is held in a standing state along the back surface of the seat back 3. The turning board 94 is urged toward the front of the vehicle by a not-shown urging member, and when the seat back 3 is turned to the forward position P32 in FIG. 2, both are turned toward the front of the vehicle. It has become. The rotating board 94 is held at a position that closes the gap between the back surface of the seat back 3 and the deck board 93 at the forward position P 32, and the back surface of the seat back 3, the upper surface of the rotating board 94, and the upper surface of the deck board 93. A continuous floor surface is formed.

The operation state from the storage state shown in FIG. 2 to the use state of FIG.
In the vehicle seat device of the embodiment, the slide pin 7 corresponding to the slide protrusion is integrally provided on the seat cushion frame 21 by caulking and is firmly coupled so as not to be removed. Therefore, the slide pin 7 of the present embodiment has a mechanical strength greater than that of the conventional one screwed into the frame, and is loosened even when an impact load or the like is applied repeatedly when seated or seat cushion is moved over time. Reliability,
Safety is further enhanced. Further, after the slide protrusion 7 is assembled integrally with the seat cushion frame 21 at a location away from the base portion 8, the slide protrusion 7 is engaged with the guide groove 55 from the rear end opening 53 of the guide member 51. It can be easily assembled and installed, and the assembly workability is good. Furthermore, since the rear end of the guide member 51 is in an open state and the mechanical strength is lowered and the guide groove 55 may be opened or closed, the reinforcement bracket 54 is welded to compensate for the reduced strength. The mechanical strength of the part is equivalent to the conventional one.

Further, the upper edge portion and the lower edge portion forming the guide groove 55 of the guide member 51 are respectively covered with the upper guide shoe 56 and the lower guide shoe 56 made of resin, and the resin sliding member is formed outside the slide protrusion 7. 76 is provided. Therefore, when the seat cushion 2 is moved, the resins slide, the operation becomes smooth, and the generated impact and noise are suppressed. Further, since the space between the upper and lower guide shoes 56 and 57 is narrowed at the rear end opening 53 and engages with the sliding member 76 without any gap, the vertical cushioning of the seat cushion 2 at the storage position P21 is prevented. The In addition, since the side protrusion 562 of the upper guide shoe 56 enters the sliding width W of the sliding member 7 without a gap, the seat cushion 2 does not rattle in the vehicle width direction. Further, the guide shoes 56 and 57 divided into two parts in the upper and lower parts can be made more easily and can be easily handled because the shape accuracy can be increased as compared with the guide shoe integrally formed in a substantially U shape by combining the upper and lower parts.

In addition, the upper guide shoe 56 and the lower guide shoe 56 have a plurality of engagements that are alternately arranged on both side surfaces of the upper and lower edges in the length direction of the guide groove 55 and are locked in the engagement holes 52. A pawl portion 58 is formed. Therefore, the guide shoes 56, 5
7 is high in dimensional accuracy, and the engaging protrusions 59 of the engaging claw portions 58 need only be inserted into the engaging holes 52 one by one in the mounting, so that the assembling workability is very good.

In addition, the method of providing the slide pin 7 integrally with the seat cushion frame 21 is not limited to the caulking fixing according to the embodiment, and other methods such as welding joining may be used. In addition, the reinforcing bracket 5
The structure and mounting method of 4 are not limited to the embodiment, and the slide pin 7 from the rear end opening 53 is provided.
Any mode may be used as long as it does not hinder enrollment. Furthermore, the present invention is not limited to the electric vehicle seat device 1 according to the embodiment, and can also be applied to a manual vehicle seat device.

1: Vehicle seat device 2: Seat cushion 21: Seat cushion frame 25: Slide support part P21: Use position P22: Storage position 3: Seat back 34: Reclining device 35: Seat back drive motor P31: Standing position P32 Forward position 41: Link member 45: Drive gear mechanism 46: Seat cushion drive motor 51: Guide member 52: Engagement hole 53: Rear end opening portion 54: Reinforcement bracket 55: Guide groove 56: Upper guide shoe 561: Lower protrusion 562: Side protrusion 57: Lower guide shoe 58: Locking claw 59: Locking protrusion 7: Slide pin (slide protrusion) 71: Shaft body 76: Slide member 8: Base part
9: Vehicle floor 91: Storage room

Claims (4)

A seat cushion frame that constitutes a seat cushion and is movable between a use position and a retracted position, a seat back frame that constitutes a seat back and is rotatable between an upright position and a forwardly tilted position, and one end side of the vehicle floor A pair of left and right link members that are pivotably connected to each other and whose other end is pivotally connected to the front end of the seat cushion frame, and are disposed on the vehicle floor and span the use position and the storage position. A guide member having a guide groove formed thereon, and a slide protrusion disposed at a rear end portion of the seat cushion frame and slidably engaged with the guide groove of the guide member. A seat device for a vehicle that can store a seat cushion side by side,
The slide protrusion is provided integrally with the seat cushion frame,
The vehicle seat device, wherein the guide member includes a rear end opening portion that opens the guide groove rearward, and a reinforcing member that increases the mechanical strength of the rear end opening portion. 2. The inner peripheral surface of the upper edge part and the inner peripheral surface of the lower edge part that form the guide groove are respectively covered with an upper guide shoe and a lower guide shoe made of resin, and the slide protrusion is formed on the outside with resin. A gap between the inner peripheral surface of the upper guide shoe and the lower guide shoe is narrowed at the rear end opening portion, and the groove width of the guide groove is reduced to reduce the upper guide shoe and the lower guide shoe. A vehicle seat device in which a guide shoe and the sliding member are engaged with each other without a gap. The upper guide shoe and the lower guide shoe according to claim 2, wherein the upper guide shoe and the lower guide shoe are alternately arranged on both side surfaces of the upper edge portion and both side surfaces of the lower edge portion in the length direction of the guide groove. The vehicle seat device is characterized in that a plurality of locking claw portions that are locked in engaging holes provided in the lower edge portion and the lower edge portion are respectively formed. 4. The seat cushion frame according to claim 1, wherein the seat cushion frame is driven to reciprocate between the use position and the storage position by an electric motor, and the seat back frame includes the upright position and the forward position. The vehicle seat device is characterized in that it is rotationally driven by an electric motor.

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