JP5944106B2 - Vehicle seat - Google Patents

Description

The present invention relates to a sheet for vehicles, especially relates to a sheet for a vehicle comprising a mounting structure that can be easily assembled in the vehicle seat.

  2. Description of the Related Art Conventionally, there is known a vehicle seat that can be stowed when not in use by tilting the seat back and flipping up the seat cushion. For example, in Patent Document 1, a seat back (described as “backrest” in Patent Document 1) is tilted forward, and a seat cushion (described as “seat” in Patent Document 1) is moved forward. A vehicle seat that can be stowed and stowed in a tumble state is disclosed.

  In the vehicle seat of Patent Document 1, the seat cushion is attached to the floor of the passenger compartment via a bracket to which an arm having a rotation shaft is connected. When the seat cushion is stored, the seat cushion rotates forward about the rotation axis and is held at a predetermined position.

JP 2010-234842 A

  Generally, a vehicle seat is fixed to a floor using bolts. A plurality of substantially circular holes for inserting bolts are also formed in the bracket disclosed in Patent Document 1, and by inserting bolts into the holes one by one and fastening to the floor, The vehicle seat is fixed.

  However, according to the technique disclosed in Patent Document 1, when the seat cushion stored by standing forward is attached to the floor, there is a problem that the assembling work is complicated. More specifically, since the seat cushion needs to be easily tilted forward when the seat cushion is stored, the seat cushion is easily tilted forward. As a result, it is difficult for the operator to position the vehicle seat, and it is difficult to easily perform the assembly work.

  In addition, a vehicular seat including a seat cushion and a seat back that performs a tilting operation is subjected to a large load on a portion joined to the floor (that is, the mounting member), and thus a technique for improving the rigidity of the mounting member is desired. It was.

An object of the present invention comprises Oite the sheet for vehicles, working time of assembling the vehicle seat, it is possible the operator to easily perform positioning, a mounting structure that can be easily carried out the assembling work The object is to provide a vehicle seat.
Another object of the present invention improves the rigidity of the mounting member to be mounted to the floor is to provide a sheet for a vehicle comprising an assembly high strength mounting structure.

The object is achieved, according to the vehicle sheet according to the present invention, the attachment of a normal sitting posture, a retracted position for accommodating in a state of being tilted forward, the the possible-formed body floor switches the seat cushion a sheet for a vehicle comprising a structure, said mounting structure includes a locking member provided in the vehicle body floor side, it is mounted to the seat cushion, and a mounting member which is engaged with the vehicle body floor The mounting member comprises a mounting plate extending in the front-rear direction, and has a locking portion that engages with the locking member and suppresses tilting of the mounting member. a long hole formed along the extending direction of the mounting plate, the lateral width of one end of the long hole is formed in a lockable size to the vehicle body floor by the locking member The width in the left-right direction of the other end and the middle part of the long hole Ri Na been made form the timber with insertion possible size, one end of the width of the slot, the width of the intermediate portion, and the width of the other, but are formed differently all, the width of the intermediate portion but the largest, the width of the one end is solved by Rukoto, such is smallest form.

As described above, the vehicle seat formed so that the seat cushion can be switched between the seating posture and the storage posture is an engagement member for engaging with a locking member provided on the vehicle body floor in an attachment member attached to the vehicle body floor. A stop is provided.
And since this mounting member is locked to the seat cushion stored in a state of being tilted forward, it tends to tilt depending on the position of the center of gravity of the seat cushion. When attaching a member, workability tends to be impaired. Therefore, by providing the mounting member with a locking member that suppresses the tilting operation in the mounting portion, the tilting operation of the mounting member is suppressed, and the mounting work of the mounting member and further the seat cushion can be easily performed. .
Further, the vehicle seat side is provided with a locking member in advance, and the locking portion of the mounting member is engaged with the locking member on the vehicle body floor side, so that the vehicle seat can be easily positioned with respect to the vehicle body floor. It becomes possible.

Further, the member Mounting the mounting plate which is formed by a plate material, further, the engaging portion is engaged with a locking member provided in the vehicle body floor by a long hole, the locking member into the long hole After the insertion, the mounting member (mounting plate) can be slid to an appropriate position and then fixed to the vehicle body floor. Therefore, the mounting member can be easily positioned with respect to the vehicle body floor.
Furthermore, in the mounting hole formed of a long hole, the width of the locking member is made wider (that is, the other end or the middle portion) by forming the width of the other end or the middle portion in the left-right direction larger than the one end. Therefore, the locking member and the mounting plate can be more easily engaged with each other.
In addition, the engagement position of the engagement member can be arbitrarily changed during the assembly work by providing the engagement portion as a long hole and providing a width without fixing the engagement position of the engagement member. As a result, the error in the position of each member on the seat cushion side caused by combining multiple members can be mitigated when the seat cushion is attached, and the vehicle body floor and the seat cushion can be assembled at an accurate relative position. Become.

Furthermore, before Kigakaritome section, the width of the one end of the elongated hole, the width of the intermediate portion, and the width of the other, but are formed differently all, the width of the intermediate portion is largest, the one end It is preferable that the width is formed to be the smallest.
Thus, regarding the hole width of the long hole-shaped locking part (mounting hole) formed on the mounting plate, the one end side is the narrowest, the other end side is the smallest, and the middle part is the width of both ends. It is good to have a configuration formed so as to be in the middle of the above. With the above configuration, even when a bolt and a washer are used as the locking member provided on the vehicle body floor side, the bolt and the washer can be easily inserted inside the mounting hole. More specifically, since the washer can be inserted through the widest middle part, and the bolt can be inserted through the widest end next to the middle part, the mounting plate can be attached to the vehicle floor more smoothly. Is possible.

Further, a normal sitting posture, a sheet for a vehicle comprising a housing orientation for housing in a state of being tilted forward, the mounting structure to allow the formed vehicle body floor switching the seat cushion, the attachment structure includes a locking member provided in the vehicle body floor side, are mounted to the seat cushion, and, and a mounting member which is engaged with the vehicle body floor, the mounting member, extending in the longitudinal direction And a locking portion that engages with the locking member to suppress tilting of the mounting member, and the locking portion is a length formed along the extending direction of the mounting plate. The width of one end of the elongated hole in the left-right direction is smaller than the width of the other end or the width of the middle portion, and the mounting plate includes a mounting surface portion that contacts the vehicle body floor, A slope formed by bending so as to rise from the mounting surface Preferably made with a.
As described above, the mounting plate includes a mounting surface portion that comes into contact with the vehicle body floor formed in a planar shape, and a slope portion that is partially inclined. As described above, by providing a slope portion obtained by bending a part of the mounting plate, it is possible to improve the rigidity of the mounting plate as compared with a mounting plate made of a plate material formed in a planar shape.

Further, a portion of the front Kigakaritome portion, it is preferable that become formed on the inclined surface portion.
Thus, in the mounting plate, by forming a part of the locking portion (mounting hole) on the slope portion, the mounting hole can be easily engaged with the locking member provided on the vehicle body floor side. More specifically, by forming a mounting hole in the inclined surface portion of the locking member that protrudes from the vehicle body floor side, the inclined surface portion can be easily engaged with the locking member. It becomes easy to assemble the mounting plate to the floor.

The front Symbol mounting plate, preferably formed by a flange to the side.
The rigidity of the mounting plate itself is improved by adopting a configuration in which the mounting plate is not provided with a smooth plate shape but has a flange on the side.

Furthermore, the said latching | locking part may be provided in the rear-end part of the said attachment plate, and may be formed by notching so that it may open toward the edge of the said attachment plate .
When the mounting plate is assembled to the vehicle body floor, the mounting plate previously attached to the seat cushion may be transported on the vehicle body floor from the left-right direction of the vehicle body. Therefore, as described above, when the locking portion (mounting hole) is formed so as to open to the side of the vehicle seat, the operator can seat the seat cushion when mounting the mounting plate on the vehicle body floor. The locking portion can be engaged with the locking member in accordance with the movement of transporting. Then, the seat cushion can be easily assembled to the vehicle body floor by sliding the mounting member to an appropriate fixing position and fastening the locking member.
Moreover, since the latching | locking part is provided in the rear-end part of the attachment board, it can prevent effectively that an attachment board inclines forward with the seat cushion which is easy to carry out forward inclination operation | movement.

Further, the lateral width of the locking portion is formed part before Symbol mounting plate, other than the portion formed wide, the locking portion is formed portion of the mounting plate of the mounting plate Preferably, an attachment hole is formed in which another member provided in the vehicle seat is attached.
Thus, when the latching | locking part is formed in a rear-end part, the rigidity fall of a rear-end part can be prevented by forming the width | variety of the rear-end part of a mounting plate large. Further, if the rear end portion formed wide is provided with an attachment hole for attaching another member, the degree of freedom of the position where the other member provided in the vehicle seat is disposed is limited. It is suitable without being done.

According to the present invention, the mounting member that is easily tilted depending on the position of the center of gravity of the seat cushion is provided with the locking portion that engages with the locking member provided on the vehicle body floor side and suppresses the tilting operation. Therefore, the work of assembling the seat cushion can be easily performed. Therefore, it is possible to easily perform the work of assembling the vehicle seat.
Further , according to the present invention, by making the locking portion into a long hole, the locking member provided on the vehicle body floor side is inserted into the locking portion and slid to an appropriate position, and then the mounting member is fixed. be able to. Moreover, it becomes easy to allow the locking member to be inserted into the locking portion by not making the width of the long hole uniform. As a result, vehicle seat positioning can be facilitated, and assembly work can be easily performed.
In addition, according to the present invention, since the locking member can be easily inserted into the locking portion (mounting hole), it is possible to easily perform the work of assembling the vehicle seat.
Moreover, according to this invention, the rigidity of an attachment member can be improved and the assembly | attachment intensity | strength of a vehicle seat can be improved.
In addition, according to the present invention, since the locking portion (mounting hole) is formed at the raised portion of the mounting member, the mounting hole is easily engaged with the locking member provided on the vehicle body floor side. Therefore, it is possible to easily perform the work of assembling the vehicle seat.
In addition, according to the present invention, since the rigidity of the mounting member can be improved, the assembly strength of the vehicle seat can be improved.
Further , according to the present invention, since the locking portion (mounting hole) can be easily engaged with the locking member provided on the vehicle body floor, the workability of assembling the vehicle seat is improved.
Further , according to the present invention, even in the portion where the locking portion (mounting hole) is formed, other members that are attached to the vehicle seat can be placed near the mounting hole without impairing the rigidity of the mounting member. Therefore, the degree of freedom of the arrangement position of other members is not limited.

It is a side surface schematic diagram of the vehicle rear part carrying vehicle seat S1. It is a perspective view of vehicle seat S1. 2 is a perspective view of a cushion frame 11. FIG. FIG. 2 is a perspective view (FIG. 1) of a seat cushion flip-up mechanism 60. It is a figure when the seat back frame 21 is seen from the front side. FIG. 3 is a diagram showing an internal frame 31 of the headrest 30. It is a figure when the headrest rotation mechanism 50 is seen from the front side. It is a figure when the headrest rotation mechanism 50 is seen from the rear side. 3 is a perspective view of a headrest rotation mechanism 50. FIG. It is a perspective view (Drawing 2) of seat cushion flip-up mechanism 60. It is a figure when the seat cushion flip-up mechanism 60 is viewed from above. It is a figure when the seat back support unit 90 is seen from the side. It is explanatory drawing of the 1st board part. It is sectional drawing equivalent to the II line | wire of FIG. It is explanatory drawing of 1st board part 112 'which concerns on other embodiment.

  Hereinafter, an embodiment according to the present invention (hereinafter, this embodiment) will be described with reference to FIGS. In addition, embodiment described below is for making an understanding of this invention easy, and does not limit this invention. The present invention can be changed and improved without departing from the gist thereof, and the present invention includes the equivalents thereof. Furthermore, the materials, shapes, and the like given in the following description are merely examples for achieving the effects of the present invention, and do not limit the present invention.

  1 to 14 illustrate a vehicle seat (hereinafter referred to as a vehicle seat S1) according to this embodiment. FIG. 1 is a schematic side view of the rear portion of the vehicle on which the vehicle seat S1 is mounted. FIG. 2 is a perspective view of the vehicle seat S1. FIG. 3 is a perspective view of the cushion frame 11. FIG. 4 is a perspective view (FIG. 1) of the seat cushion flip-up mechanism 60. FIG. 5 is a view when the seatback frame 21 is viewed from the front side. FIG. 6 is a view showing the inner frame 31 of the headrest 30. 7 to 9 are diagrams showing the headrest rotating mechanism 50, FIG. 7 is a diagram when the headrest rotating mechanism 50 is viewed from the front side, and FIG. 8 is a diagram when viewed from the rear side. FIG. 9 is a perspective view. FIG. 10 is a perspective view (FIG. 2) of the seat cushion flip-up mechanism 60. FIG. 11 is a view of the seat cushion flip-up mechanism 60 as viewed from above. FIG. 12 is a view of the seat back support unit 90 as viewed from the side. 13 is an explanatory diagram of the first plate portion 112, and FIG. 14 is a cross-sectional view corresponding to the line II in FIG. FIG. 15 relates to another embodiment and is an explanatory view of the first plate portion 112 ′.

  In the figure, symbol FR indicates the front of the vehicle, symbol RR indicates the rear of the vehicle, and symbol UP indicates the upper side of the vehicle. In the following description, the left-right direction means the left-right direction in a state of facing the front of the vehicle, and is a direction that coincides with the width direction of the seat back frame 21 described later.

  The vehicle seat S1 is an example of a vehicle seat. As shown in FIG. 1, the vehicle seat S1 is mounted as a rear seat in a vehicle having a luggage space at the rear of a vehicle body. It is mounted on a wagon-type car.

  The configuration of the vehicle seat S1 will be described. In this embodiment, the vehicle seat S1 is divided into a right side (driver's seat side) vehicle seat S11 and a left side (passenger side) vehicle seat S12. , S12 includes a seat cushion 10, a seat back 20, and a headrest 30. Note that an armrest 40 is disposed between the seat backs 20 of the vehicle seats S11 and S12. In the left vehicle seat S12, the pedestal 20a and the seat back positioned below the armrest 40 in FIG. 20, and the overhanging portion 10 a and the seat cushion 10 disposed at a position below the pedestal portion 20 a in FIG. 2 are integrated. Although the vehicle seat S11 on the right side and the vehicle seat S12 on the left side are different in the above points, the vehicle seats S11 and S12 are common in terms of the basic configuration. Therefore, in the following description, only the configuration of the right vehicle seat S11 will be described as an example.

  The vehicle seat S1 is configured so that the luggage compartment portion 3 is formed when the vehicle seat S1 is not in use from a normal posture in which the occupant can be seated (the posture shown by a broken line in FIG. 1; hereinafter, a seated posture). It is possible to switch to the stored posture (the posture shown by a solid line in FIG. 1 and hereinafter referred to as the stored posture). That is, when the posture of the vehicle seat S1 is switched to the storage posture, the seat cushion 10 is flipped up toward the front of the vehicle. Further, in conjunction with the seat cushion 10 being flipped up, the seat back 20 is pivoted forward so that the seat cushion 10 is laid down on the vehicle body floor 2 at the position where the seat cushion 10 before the seat cushion 10 was placed. Furthermore, when the headrest 30 is rotated approximately 90 degrees forward from the state in which the headrest 30 is disposed substantially vertically above the seat back 20, and the seat back 20 falls on the vehicle body floor 2, the seat that jumps forward It is stored between the cushion 10 and the seat back 20 lying down.

  Through the series of operations described above, the vehicle seat S1 can be stored in a compact posture. And in the vehicle 1 which employ | adopts the vehicle seat S1 of the said structure as a rear seat, the luggage compartment part 3 which comprises a part of vehicle body floor 2 is formed in the back of the said vehicle seat S1, This luggage compartment part 3 is the following. The vehicle seat S1 is expanded until it can be used by the storing operation.

  As described above, the vehicle seat S1 is configured to be able to switch its posture to a sitting posture and a storage posture, and further, switching from a sitting posture to a posture in which only the headrest 30 is tilted forward, It is also possible to switch from the stowed position to a position in which only the seat back 20 is raised. Such various seat arrangements are realized by various drive mechanisms (specifically, the headrest turning mechanism 50, the seat cushion jumping mechanism 60, the seatback overturning mechanism 70, etc.) provided in the vehicle seat S1. It is. Hereinafter, a configuration for realizing the seat arrangement of the vehicle seat S1 will be described.

  In the following description, the seating positions of the seat cushion 10, the seat back 20, and the headrest 30 are the positions of the seat cushion 10, the seat back 20, and the headrest 30 when the vehicle seat S1 is in the seating position. It is. Further, the flip-up position of the seat cushion 10 is the position of the seat cushion 10 when the vehicle seat S1 is in the stowed position, and the tilted positions of the seat back 20 and the headrest 30 are respectively the vehicle seat. This is the position of the seat back 20 and the headrest 30 when the posture of S1 is the storage posture.

<< Basic configuration of vehicle seat S1 >>
In describing the configuration for realizing the seat arrangement of the vehicle seat S1, the basic configuration of the vehicle seat S1 will be described. As described above, the vehicle seat S1 includes the seat cushion 10, the seat back 20, and the headrest 30.

  The seat cushion 10 is configured by attaching a skin material to the cushion frame 11 shown in FIG. Attachment of the skin material is performed by hooking a trim cord (not shown) sewn to the end of the skin material to the outer edge of the cushion frame 11.

Further, a seat cushion flip-up mechanism 60 shown in FIG. 4 is disposed below the seat cushion 10. The seat cushion flip-up mechanism 60 is fixed on the vehicle body floor 2 and supports the seat cushion 10 and raises the seat cushion 10 from the seating position toward the flip-up position when storing the vehicle seat S1. Is.
That is, the seat cushion 10 is fixed to the seating position on the vehicle body floor 2 via the seat cushion jumping mechanism 60, and is configured to jump from the seating position toward the jumping position when the seat cushion jumping mechanism 60 is activated. Has been. In other words, the seat cushion 10 can reciprocate between the sitting position and the flip-up position.

  The seat cushion flip-up mechanism 60 includes a striker lock mechanism 100. The striker lock mechanism 100 fixes the seat cushion 10 at the seating position when the vehicle seat S1 is in the seating posture. The seat cushion flip-up mechanism 60 will be described in detail later.

  The seat back 20 is rotated so as to fall forward by the seat back fall mechanism 70, and the occupant operates the operation portion 77 provided at the upper end portion of the seat back 20, so that only the seat back 20 is moved. Can be moved forward alone. And the seat back 20 is comprised by overlapping the urethane as a cushioning material on the seat back frame 21 shown in FIG. 5, and covering with a skin material. The seat back frame 21 of the seat back 20 includes a pan frame 22 that forms the base of the seat back frame 21 and a pipe frame 23 that forms the outer frame of the seat back frame 21. The pan frame 22 is formed by subjecting a substantially rectangular sheet metal to processing such as bead processing for ensuring rigidity. A headrest rotation mechanism 50 and an arrangement unit 80 are attached to the front surface of the pan frame 22.

  The headrest rotating mechanism 50 is a mechanism that tilts the headrest 30 forward by rotating the pillar 33 forward, and is operated by an operation in which an occupant pulls the band member ST1 for storing operation along the vertical direction. Thus, only the headrest 30 can be laid down. Specifically, as shown in FIGS. 7 and 8, in the headrest rotating mechanism 50, a storage operation band member ST <b> 1 for receiving an operation for sliding the slide member 54 by the occupant is provided. The band member ST1 for storing operation is fastened to the one end portion 54a in the direction. When the occupant pulls the storage operation band member ST1, the slide member 54 slides, and the lock member 52 swings to the release position so as to follow the slide member 54. Then, by sliding the slide member 54, the headrest 30 (pillar 33) can finally be tilted forward as shown in FIG.

  The pipe frame 23 is disposed along the outer edge of the pan frame 22 so as to surround the pan frame 22, and is joined to the pan frame 22 by welding. In the pipe frame 23, a portion located in the lower part in the vertical direction and a part facing the outside of the vehicle in the left and right direction are provided with a gap between the pan frame 22 in the thickness direction of the seat back 20. It is arranged. The reason why such a gap is formed is, for example, to sandwich and hold an end portion of urethane as a cushioning material superimposed on the seat back frame 21 between the pan frame 22 and the pipe frame 23.

  Further, a pillar falling restricting portion 25 made of a downward U-shaped bracket is provided in a portion of the upper end portion of the seat back frame 21 that is located on the rear side of a pillar 33 described later. The pillar fall restricting portion 25 corresponds to a restricting portion that restricts the backward rotation (falling) of the pillar 33 when the headrest 30 is located at the seating position. In addition, the pillar fall restriction | limiting part 25 is provided for every pillar 33 (namely, two pieces are provided), and is weld-stopped by the upper end part of the pipe frame 23. As shown in FIG.

  The seat back 20 having the above configuration is configured such that the pivot shaft 20b is fitted into a hole of a seat back support unit 90 (see, for example, FIG. 12) fixed to the vehicle body floor 2, so that the seat back support unit 90 Is rotatably supported. Thereby, the seat back 20 can be rotated in the front-rear direction with respect to the vehicle body floor 2, and can move between the seating position and the fall-down position. In the present embodiment, the seat back 20 lies forward in conjunction with the flip-up operation of the seat cushion 10. Furthermore, in the present embodiment, it is possible to tilt only the seat back 20 forward.

  The headrest 30 is provided above the seat back 20 (in other words, the seat back frame 21), and is filled with a foaming agent between the inverted U-shaped inner frame 31 and the skin material shown in FIG. Composed. The leg portions 31a on both sides of the inverted U-shaped inner frame 31 are hollow, and spaces for accommodating the hollow bar-shaped guides 32 are formed inside the leg portions 31a. The guide 32 is accommodated in the leg portion 31a and is configured to be able to advance and retract through an insertion hole (not shown) provided in the lower end flange portion 31b of the leg portion 31a of the internal frame 31. The skin material of the headrest 30 is provided with a through hole (not shown) so that the end portion of the guide 32 is located outside the skin material.

  In the headrest 30 configured as described above, in a state where the guide 32 is located at the most retracted position in the leg portion 31a of the inner frame 31 (a state where the guide 32 is housed in the leg portion 31a except for the lower end flange 32a). Of the skin material of the headrest 30, the portion around the through hole is sandwiched between the lower end flange portion 31 b of the leg portion 31 a of the inner frame 31 and the lower end flange 32 a of the guide 32.

  Further, in the present embodiment, the headrest 30 is supported by the pillar 33 in a state where a pair of pillars 33 (see FIG. 5) made of metal rods are inserted into the guide 32, and each pillar 33 is rotated by the headrest. The mechanism 50 is rotatably supported by the casing 51.

  The headrest 30 can be rotated by the headrest rotation mechanism 50 until the headrest 30 is tilted forward by about 90 degrees from the state of standing up above the seat back 20. In the present embodiment, the headrest 30 is pivoted so as to fall forward in conjunction with the flip-up operation of the seat cushion 10, and further, only the headrest 30 can be tilted forward alone. It is.

<< Seat cushion springing mechanism >>
When the occupant receives a storage operation to store the vehicle seat S1, the seat cushion jumping mechanism 60 jumps the seat cushion 10 toward the flip-up position as a start operation for storing the vehicle seat S1. To raise. The seat cushion flip-up mechanism 60 is covered with a resin cover (not shown), and is installed on the vehicle body floor 2 so as to be positioned below the seat cushion 10 when the seat cushion 10 is positioned at the seating position. ing.

  As shown in FIGS. 4, 10, and 11, the seat cushion flip-up mechanism 60 includes two subunits, and one subunit is an attachment unit 110 that is attached to the vehicle body floor 2, and the other The sub-unit is a movable unit 120 that is arranged on the attachment unit 110 and can perform a swing operation (rotation operation) with respect to the attachment unit 110 (in other words, the vehicle body floor 2).

  The mounting unit 110 includes a mounting plate 111 having an L-shaped appearance in a top view as a main component. Of the mounting plate 111, a first plate portion 112 as a mounting member extending along the front-rear direction of the vehicle 1 is fixed to the vehicle body floor 2 by bolts Bo and washers Ws fastened to the vehicle body floor 2 (FIG. 11). Here, a long hole-like mounting hole 114 is formed at the rear end of the first plate portion 112, and the bolt Bo and the washer Ws fastened to the vehicle body floor 2 in advance are fitted into the mounting hole 114, A mounting unit 110 is disposed on the vehicle body floor 2.

  The intermediate portion 114b in the longitudinal direction of the mounting hole 114 is somewhat wider than the front end portion 114a and the rear end portion 114c. Using this configuration, when the bolt Bo and the washer Ws are fitted into the mounting hole 114, the bolt Bo and the washer Ws are first passed through the longitudinal intermediate portion 114b of the mounting hole 114, and then the bolt Bo is attached to the mounting hole. The mounting unit 110 is positioned by shifting the position of the mounting unit 110 so as to be fitted to the front end portion 114 a of the longitudinal direction 114.

  In addition, a lock portion 101 of the striker lock mechanism 100 is attached to a substantially central portion in the longitudinal direction of the first plate portion 112. The lock portion 101 includes a hook-shaped lock piece 102 and a housing 103 that accommodates the lock piece 102 in a swingable state. When the lock piece 102 is engaged with a striker 105 described later, the seat cushion 10 is fixed on the vehicle body floor 2 at the seating position. On the other hand, when the lock piece 102 swings, the striker 105 comes out of engagement with the lock piece 102, and the seat cushion 10 is released from the fixed state on the vehicle body floor 2 and is movable. It becomes.

  Further, the first plate portion 112 has a standing wall portion 112a on one side thereof, and the above-described storage operation belt-like member is located slightly ahead of the mounting position in the standing wall portion 112a. A slit 112b for passing ST2 is formed. The band member ST2 for storing operation passed through the slit 112b is disposed on the first plate portion 112 so as to intersect the first plate portion 112. In addition, one end of the cable C is connected to the end of the storing operation band member ST2 (the end on the inside of the vehicle 1 when viewed from the first plate portion 112). A route defining portion 112c for defining the routing route is provided at an appropriate interval on a side portion of the first plate portion 112 (a side portion opposite to the side where the standing wall portion 112a is located).

  The other end of the cable C is connected to a connecting piece 104 that is connected to the lock piece 102 described above. As a result, when the storage operation band member ST2 is pulled, the cable C pulls the lock piece 102 via the connecting piece 104. As a result, the lock piece 102 swings, and the engagement between the lock piece 102 and the striker 105 occurs. The match will be released.

  On the other hand, in the mounting plate 111, the second plate portion 113 extending along the left-right direction of the vehicle 1 (the width direction of the vehicle seat S1) is a portion that forms the base of the movable unit 120, and is a central portion in the longitudinal direction. Is provided with a submarine bracket 115 for preventing a submarine phenomenon in which an occupant seated on the seat cushion 10 enters under the waist belt in the event of a collision of the vehicle 1.

  The movable unit 120 has a substantially portal structure and is bolted to the second plate portion 113 of the mounting plate 111. The movable unit 120 rotates the pair of links 121, the pair of pipe rods 122, the connecting bar 123 connecting the links 121, the mounting bracket 124 for mounting the seat cushion 10, the link 121 and the pipe rod 122. And a pair of support mechanisms 125 that are freely supported. These components are combined so as to be integrated as a unit, and when they are attached to the second plate portion 113 of the attachment plate 111, they are integrally attached as a unit.

  Each of the pair of links 121 is a long body configured by subjecting a sheet metal member to processing such as bead processing, and is located on both sides of the movable unit 120. Each link 121 is rotatably supported by fitting a rotation shaft 126A in a through hole (not shown) formed in the lower end portion thereof. Further, a connecting bar 123 that connects the links 121 is attached to the upper end of each link 121. Further, a mounting bracket 124 is attached to the upper surface of each link 121 on the outer surface thereof. The connecting bar 123 and the mounting bracket 124 are attached to the upper end portion of the link 121 by bolting in a co-tightening manner. By locking the cushion frame 11 to the mounting bracket 124, the seat cushion 10 is attached to the seat cushion flip-up mechanism 60.

  Each of the pair of pipe rods 122 is arranged side by side with the link 121 in the front-rear direction, and the rotation shaft 126B is fitted in a through hole (not shown) formed in the lower end portion thereof, whereby the rotation direction of the link 121 Is supported so as to be rotatable in the same direction. A mounting bracket 124 is pinned to the upper end of each pipe rod 122. That is, in the present embodiment, the seat cushion 10 is supported by the pair of links 121 and the pair of pipe rods 122 via the mounting bracket 124. Each pipe rod 122 is rotated in the same direction as the rotation direction of the link 121 following the rotation of the link 121.

  Further, the striker 105 of the striker lock mechanism 100 described above is attached to the lower surface of the mounting bracket 124 attached to the link 121 and the pipe rod 122 on the side facing the outside of the vehicle 1 out of the pair of links 121 and the pipe rod 122. It is attached. When the link 121 and the pipe rod 122 are rotated so as to fall backward as viewed from the rotation shafts 126A and 126B, the striker 105 is provided on the mounting plate 111 (more specifically, the first plate portion 112). It will reach a position where it can engage with the lock piece 102 of the lock part 101.

  Each of the pair of support mechanisms 125 supports the link 121 and the pipe rod 122 in a rotatable manner. As shown in FIGS. 4, 10, and 11, in addition to the above-described rotation shafts 126 </ b> A and 126 </ b> B, A base bracket 127, a spiral spring 128, and a damper rubber 129 are provided.

  The base bracket 127 is a substantially Z-shaped sheet metal member in a top view, forms a base of the movable unit 120, and is bolted to the second plate portion 113 of the mounting plate 111. Further, a portion of the base bracket 127 that extends along the front-rear direction of the vehicle 1 is a standing wall portion 127a, and the rotation shafts 126A and 126B are fixed to the standing wall portion 127a.

  The damper rubber 129 contacts the front end of the link 121 when the link 121 is rotated forward by the urging force of the spiral spring 128 to reach the front limit position, and absorbs an impact generated in the link 121. The damper rubber 129 is fixed to the above-described base bracket 127 so as to be located somewhat forward of the portion of the link 121 that becomes the pivot point.

  In the present embodiment, in order to prevent the damper rubber 129 from being broken due to the contact (collision) of the link 121 with the damper rubber 129, in the longitudinal direction of the link 121, the portion in the position in contact with the damper rubber 129 ( Hereinafter, the contact part 121a) is bent to round the front end of the contact part 121a.

  Of the pair of support mechanisms 125, the support mechanism 125 located outside the vehicle 1 is provided with a spiral spring 128. The spiral spring 128 is a biasing member that biases the link 121 to tilt forward. One end of the spiral spring 128 is locked to the rotating shaft 126A, and the other end is a link in a state where the link 121 is tilted to the rear side (in other words, a state before the seat cushion 10 jumps up). It is latched by the protrusion part (not shown) protruded from the side surface of 121.

  With the above configuration, when the striker 105 and the lock piece 102 are engaged, the seat cushion 10 receives the urging force of the spiral spring 128 via the link 121 (in other words, the spiral spring 128). It will be held in the seated position (against the biasing force). On the other hand, when the engagement between the striker 105 and the lock piece 102 is released, the urging force of the spiral spring 128 causes the link 121 to rotate forward so that the seat cushion 10 jumps toward the flip-up position. Become.

  In the case shown in FIGS. 4, 10, and 11, the spiral spring 128 is provided for only one of the pair of links 121. In contrast, the spiral spring 128 may be provided.

  Furthermore, in this embodiment, the insertion hole 121b is formed in the longitudinal direction halfway position of one link 121 (link 121 located outside the vehicle 1), and the cable C is inserted into the insertion hole 121b. One end of is inserted. The other end of the cable C is connected to the arrange unit 80. Therefore, when the seat cushion 10 is flipped up, the link 121 rotates to pull the cable C coupled to the link 121. Finally, in the arrangement unit 80 to which the cable C is connected, Each part of the unit operates by using the traction force of the cable C.

<< Seat Cushion 10 Mounting Structure (Configuration of First Plate 112) >>
A mounting structure of the seat cushion 10 in the vehicle seat S1 that can be switched between a sitting posture and a storage posture in which the seat is tilted forward will be described below with reference to FIGS. 13 to 15.

  The mounting plate 111 includes a first plate portion 112 serving as a mounting member and a second plate portion 113 serving as a fixing member disposed so as to overlap the first plate portion 112 and is assembled to the vehicle body floor 2. It is done. Further, the bolt Bo and washer Ws as locking members provided in advance on the vehicle body floor 2 side and the mounting hole 114 as the locking portion formed in the first plate portion 112 are engaged, and the bolt Bo is fastened. As a result, the first plate portion 112 is fixed to the vehicle body floor 2.

The attachment hole 114 is a long hole formed in the rear end portion of the first plate portion 112, and the long axis direction is formed along the longitudinal direction of the first plate portion 112.
As shown in FIG. 13, the attachment hole 114 has an intermediate portion 114b in the longitudinal direction that is somewhat wider than the front end portion 114a and the rear end portion 114c. More specifically, the width in the left-right direction of the front end portion 114a (width indicated by a in FIG. 13) is the smallest, and then the width in the left-right direction of the rear end portion 114c (width indicated by c in FIG. 13). Further, the mounting hole 114 is formed so as to gradually increase in the order of the width in the left-right direction of the intermediate portion 114b (width indicated by b in FIG. 13).

  The intermediate portion 114b having the largest width is formed to have a width that allows the washer Ws to be inserted therein. Further, the width of the rear end 114c is formed so that the head of the bolt Bo can be inserted. Further, the width of the front end portion 114a is formed such that the shaft portion of the bolt Bo can be inserted and the head portion of the washer Ws and the bolt Bo cannot be inserted.

  Therefore, the bolt Bo and the washer Ws are inserted by making the mounting hole 114 have a different internal width as described above, compared to a case where the internal hole has a uniform width in the left-right direction. In addition, the mounting hole 114 (first plate portion 112) can be sandwiched and locked between the bolt Bo and the washer Ws and the vehicle body floor 2. As a result, the first plate portion 112 can be easily assembled to the vehicle body floor 2.

  As shown in FIG. 14, at least a part of the mounting hole 114 is formed in a slope portion 112e formed by bending so as to rise from a mounting surface portion 112d attached in contact with the vehicle body floor 2. . More specifically, the widest intermediate portion 114b of the mounting hole 114 is formed so as to overlap the slope portion 112e. In addition, the horizontal part 112f extended further back than the slope part 112e is formed so that it may become a substantially horizontal plane.

  As described above, the intermediate portion 114b is formed so as to cover the inclined surface portion 112e, so that the first plate portion 112 is slid on the vehicle body floor 2 toward the bolt Bo protruding upward from the vehicle body floor 2 substantially vertically. By doing so, the mounting hole 114 and the bolt Bo can be engaged.

  The front end portion 114a is formed in the mounting surface portion 112d, and the first plate portion 112 is attached to the vehicle body floor 2 by inserting and fastening the shaft portion of the bolt Bo at an appropriate position of the front end portion 114a. Worn.

  In the prior art, a technique of attaching the vehicle seat S11 (S1) to a bolt hole formed in advance on the vehicle body floor 2 via a bracket provided with a substantially circular hole has been used. At this time, since the vehicle seat S11 (S1) is heavy, it is difficult to accurately place the vehicle seat S11 (S1) at the assembly position of the vehicle body floor 2, and there is a problem that the mounting operation cannot be easily performed. .

  However, according to the mounting structure of the vehicle seat S11 (S1) of the present invention, the mounting plate 111 (with the mounting hole 114 inserted through the bolt Bo and the washer Ws mounted on the vehicle body floor 2 once. The first plate portion 112) is placed and then slid to adjust the position. As a result, the vehicle seat S11 (S1) can be easily assembled.

  Since the seat cushion 10 (and the mounting unit 110 and the movable unit 120) is attached in advance above the first plate portion 112, the first plate portion 112 is attached to the vehicle body floor 2 before the bolt Bo is fastened. 1), the first plate part 112 is configured to easily tilt forward due to the load of the seat cushion 10. Accordingly, the bolt Bo attached to the vehicle body floor 2 side is inserted into and engaged with the front end portion 114a of the mounting hole 114, thereby preventing the first plate portion 112 from being tilted forward. As a result, positioning and assembling work can be easily performed on the vehicle body floor 2.

Furthermore, the 1st board part 112 is provided with the flange 112g bent upwards in the side (more specifically, the side in which the attachment hole 114 was formed).
Thus, providing the flange 112g in the vicinity of the mounting hole 114 is preferable without reducing the rigidity in the vicinity of the mounting hole 114.

  In addition, since the first plate portion 112 includes not only the flange 112g but also the mounting surface portion 112d and the inclined surface portion 112e, the first plate portion 112 is configured to have irregularities, and thus the rigidity of the first plate portion 112 with respect to the external force. Will improve. As a result, when assembled to the vehicle body floor 2, high rigidity can be provided.

  Furthermore, in the first plate portion 112, the width of the portion (rear end portion) where the mounting hole 114 is formed is formed wider than the other portion (specifically, the mounting surface portion 112d). A plurality of attachment holes 112h into which clips for attaching the cables C and the like can be inserted are formed in the portion.

In this way, by forming the width of the first plate portion 112 where the attachment hole 114 is formed wide, it is possible to prevent the rigidity of the first plate portion 112 from being lowered by the attachment hole 114.
Further, by providing the attachment hole 112h in the wide portion (mainly the horizontal portion 112f), it is possible to assemble another member (for example, cable C) provided in the vehicle seat S11. Therefore, the mounting hole 114 is provided at the rear end portion of the first plate portion 112 and the portion is formed wide so that not only the rigidity is prevented from being lowered due to the mounting hole 114 but also other members are disposed. Can be suitably performed.

  Furthermore, the first plate portion 112 is provided with an inclined surface portion 112e, but the rear horizontal portion 112f is spaced apart upward from the vehicle body floor 2 and extends substantially horizontally. Therefore, the rear side (horizontal portion 112f) of the first plate portion 112 further than the inclined surface portion 112e is disposed at a predetermined distance from the vehicle body floor 2, so that other members such as clips are disposed. Space is secured. Therefore, it is preferable to form the attachment hole 112h at the rear end portion of the first plate portion 112 because the space formed between the horizontal portion 112f and the vehicle body floor 2 is effectively utilized by the inclined surface portion 112e.

(Other embodiments)
In the above, the attachment hole 114 is provided at the rear end portion of the first plate portion 112, and the attachment hole 114 is not formed so as to cover the edge of the first plate portion 112 (that is, the attachment hole 114). However, for example, the mounting hole 114 ′ may be open toward the side edge of the first plate portion 112 ′ (see FIG. 15).

  When the vehicle seat S <b> 11 is assembled to the vehicle body floor 2, the mounting plate 111 to which the seat cushion 10 is previously attached may be transported from the side of the vehicle 1 and assembled. Accordingly, the bolt Bo and the washer Ws are engaged with the mounting hole 114 ′ of the mounting plate 111 (first plate portion 112) with the movement at the time of transportation, so that it opens to the side portion of the vehicle seat S <b> 11. It is preferable that the mounting hole 114 ′ is formed by notching.

(Still another embodiment)
Further, the attachment hole may be formed so as to open and be cut out at the rear end of the first plate portion 112. Furthermore, an attachment hole may be formed in the vicinity of the portion where the lock portion 101 of the striker lock mechanism 100 is formed (substantially central portion of the first plate portion 112). As described above, when the attachment hole is formed in the vicinity of the lock portion 101, the bolt Bo and the washer Ws are also attached in the vicinity of the lock portion 101. Therefore, the striker lock mechanism 100 is attached to the vehicle body floor 2. More firmly attached. As a result, the operation of the striker lock mechanism 100 is further stabilized, which is preferable.

DESCRIPTION OF SYMBOLS 1 Vehicle, 2 Vehicle body floor, 3 Cargo compartment part 10 Seat cushion, 10a Overhang | projection part 11 Cushion frame 20 Seat back, 20a Base part, 20b Rotating shaft 21 Seat back frame 22 Pan frame,
23 Pipe frame,
25 Pillar collapse regulation part 30 Headrest 31 Internal frame, 31a Leg part, 31b Lower end flange part 32 Guide, 32a Lower end flange 33 Pillar 40 Armrest 50 Headrest rotation mechanism 51 Casing 52 Lock member 54 Slide member, 54a Longitudinal end part 60 Sheet Cushion flip-up mechanism 70 Seat back fall mechanism 77 Operation unit 80 Arrangement unit 90 Seat back support unit 100 Striker lock mechanism 101 Lock unit 102 Lock piece 103 Housing 104 Connection piece 105 Striker 110 Mounting unit 111 Mounting plates 112 and 112 'First plate Part (attachment member), 112a Standing wall part, 112b Slit, 112c Path defining part, 112d Attachment surface part, 112e Slope part, 112f Horizontal part, 112g Flange, 112 Mounting hole 113 Second plate portion 114, 114 ′ Mounting hole (locking portion), 114a Front end portion, 114b Intermediate portion, 114c Rear end portion 115 Submarine bracket 120 Movable unit 121 Link, 121a Contact portion, 121b Insertion hole ,
122 Pipe rod 123 Connecting bar 124 Mounting bracket 125 Support mechanism 126A, 126B Rotating shaft 127 Base bracket, 127a Standing wall,
128 spiral spring 129 damper rubber Bo bolt (locking member), Ws washer (locking member), C cable,
S1, S11, S12 Vehicle seats ST1, ST2 Storing operation band members

Claims (6)

A normal sitting posture, a sheet for a vehicle comprising a housing orientation for housing in a state of being tilted forward, the mounting structure to allow the formed vehicle body floor switching the seat cushion,
The mounting structure is
A locking member provided in the vehicle body floor side,
Wherein is attached to the seat cushion, and, and a mounting member which is engaged with the vehicle body floor,
The mounting member comprises a mounting plate extending in the front-rear direction, and has a locking portion that engages with the locking member and suppresses tilting of the mounting member,
The locking portion is a long hole formed along the extending direction of the mounting plate,
Lateral width of the one end of the long hole is formed in a lockable size to the vehicle body floor by the locking member, the lateral width of the other end and the intermediate portion of the elongated hole, the Ri Na been made form the locking member can be inserted size,
The width of one end of the long hole, the width of the intermediate portion, and the width of the other end are all different, the width of the intermediate portion is the largest, and the width of the one end is the smallest. sheet for a vehicle according to claim Rukoto. A normal sitting posture, a sheet for a vehicle comprising a housing orientation for housing in a state of being tilted forward, the mounting structure to allow the formed vehicle body floor switching the seat cushion,
The mounting structure is
A locking member provided in the vehicle body floor side,
Wherein is attached to the seat cushion, and, and a mounting member which is engaged with the vehicle body floor,
The mounting member comprises a mounting plate extending in the front-rear direction, and has a locking portion that engages with the locking member and suppresses tilting of the mounting member,
The locking portion is a long hole formed along the extending direction of the mounting plate,
The width in the left-right direction at one end of the elongated hole is formed to be smaller than the width at the other end or the width of the middle part,
The mounting plate, with the vehicle body floor in contact with the attaching face portion, sheets for vehicles, characterized by comprising a slope portion formed by bending so as to rise from the mounting surface. Some of the locking portion for a vehicle sheet according to claim 2, characterized in that characterized by comprising formed on the inclined surface portion. The mounting plate for a vehicle sheet according to any one of claims 1 to 3, characterized in that it comprises a flange laterally. The said latching | locking part is provided in the rear-end part of the said mounting plate, and is formed by notching so that it may open toward the edge of the said mounting plate, The one of the Claims 1 thru | or 4 characterized by the above-mentioned. sheet for a vehicle according to one paragraph. The width in the left-right direction of the portion where the locking portion of the mounting plate is formed is wider than the other portion of the mounting plate,
6. The attachment hole according to claim 5 , wherein an attachment hole to which another member provided in the vehicle seat is attached is formed in a portion of the mounting plate where the locking portion is formed. sheet for the vehicle.

Images