JP4622596B2 - Car seat mounting structure - Google Patents

Description

  The present invention relates to an automobile seat mounting structure in which a seat cushion of an occupant seat is movably mounted in a longitudinal direction of a vehicle body.

Conventionally, in Patent Document 1 below, a slide rail that supports a pair of front and rear upright legs having different heights on a floor panel in a vehicle compartment and that supports a seat cushion of an occupant seat so as to be slidable in the longitudinal direction of the vehicle body. An automobile seat moving apparatus is disclosed in which the slide rail is installed in a forward-tilted state by attaching a (lower feed base) on the upright legs. This seat moving device automatically adjusts the vertical position of the occupant seat according to the tilted state of the slide rail by sliding the seat cushion of the occupant seat along the slide rail in the longitudinal direction of the vehicle body. In addition, the tilt angle of the seat cushion is adjusted by a tilt mechanism.
JP 62-116324 A

  As disclosed in Patent Document 1 above, when the slide rail is installed on the floor panel in the passenger compartment in a state of rising upward, if the inclination angle is a gentle angle of about 5 ° to 10 °, for example, The slide rail can be stably supported by a pair of front and rear upright legs standing on the floor panel. However, when the inclination angle of the slide rail is a steep angle of, for example, about 15 ° to 20 °, the heights of the upright legs on the front side and the upright legs on the rear side are significantly different. It is difficult to stably support the load in the front-rear direction that acts on both upright legs of the slide rail, and the slide rail tends to bend and deform according to the impact load input at the time of a frontal collision of the automobile. There was a problem.

  The present invention has been made in view of the above problems, and effectively improves the support rigidity of a slide rail that supports a seat cushion of a passenger seat so as to be movable in the front-rear direction of the vehicle body with a simple configuration. An object of the present invention is to provide an automobile seat mounting structure capable of achieving the above.

According to a first aspect of the present invention, there is provided a seat mounting structure for an automobile in which a slide rail that supports a seat cushion of an occupant seat so as to be movable in the front-rear direction of the vehicle body is tilted forward and upward at a predetermined elevation angle. In the above, a cross member having a bulging portion that bulges upward from the vehicle body with a predetermined front-rear width from a floor panel in the vehicle interior extends in the vehicle width direction, and the upper wall surface of the cross member is the elevation of the slide rail is inclined at an angle corresponding, Rutotomoni attach the slide rails to the upper wall of the cross member, floor panel vehicle rear side portion of the cross member is in contact, the vehicle front side of the cross member The vehicle is located on the lower side of the floor panel in contact with the vehicle, and the vehicle rear side of the slide rail is in contact with the vehicle front side of the cross member. In which was positioned on the lower side of the lower panel.

Invention, in the vehicle seat mounting structure according to the claim 1, a pair of right and left slide rails disposed along both sides below the sheet over cushions, pair both slide rails are attached in accordance with claim 2 The slide rail mounting portion is provided on the cross member, the front wall surface of the cross member located between the slide rail mounting portions is provided with a recessed portion that is recessed on the rear side of the vehicle body, and the rear side of the cross member. A rear occupant seat is disposed on the rear wall surface of the cross member positioned between the two slide rail mounting portions, and a recessed portion that is recessed toward the front side of the vehicle body is provided .

Invention, in the vehicle seat mounting structure according to the claim 2, the slide rail attachment portion provided on the outer side end portion in the vehicle width direction of the cross member, the left and right sides of the floor panel according to claim 3 It is joined to a side sill extending in the longitudinal direction of the vehicle body along the side.

The invention according to claim 4 is the vehicle seat mounting structure according to the claim 2, the slide rail attachment portion provided on the inner side end portion in the vehicle width direction of the cross member, the central portion of the floor panel It is joined to a tunnel portion extending in the front-rear direction of the vehicle body along.

According to a fifth aspect of the present invention, in the automobile seat mounting structure according to the first aspect, a closed cross section extending in the vehicle width direction is formed by the bulging portion of the cross member and a floor panel positioned below the bulged portion. It is a thing.

According to a sixth aspect of the present invention, in the vehicle seat mounting structure according to the fifth aspect of the present invention, the vehicle equipment is disposed in a closed cross section formed by the bulging portion of the cross member and the floor panel. It is.

According to a seventh aspect of the present invention, in the vehicle seat mounting structure according to the fifth aspect , a bulging portion bulging upward corresponding to the bulging portion of the cross member is provided on the floor panel, Vehicle equipment is arranged in the bulging portion.

According to an eighth aspect of the present invention, in the vehicle seat mounting structure according to the first aspect, an opening for installing the vehicle equipment in the bulging portion of the cross member is positioned below the cross member installation portion. It is formed on the floor panel.

The invention according to claim 9 is the seat mounting structure for an automobile according to any one of claims 5 to 8 , wherein the cross member is disposed below a pair of left and right occupant seats installed in the passenger compartment. In addition, a vehicle equipment comprising a flat battery unit extending in the vehicle width direction so as to straddle the lower part of both passenger seats is disposed below the bulging part of the cross member. .

The invention according to claim 1 0, in the vehicle seat mounting structure according to the claim 1, in which the thickness of the cross member is set to a value larger than the thickness of the floor panel.

According to the invention according to claim 1, for the construction to attach the slide rails to the upper wall surface of the cross member having a bulging portion which bulges upwardly of the vehicle body from the vehicle interior floor panel with a predetermined longitudinal width In addition, the vehicle body rigidity in the installation portion of the slide rail can be sufficiently ensured, and a large impact load acting on the slide rail from the seat cushion of the occupant seat can be applied to the entire cross member during a frontal collision of an automobile. Can be supported stably. Further, the floor panel with which the vehicle rear side portion of the cross member is in contact is positioned below the floor panel with which the vehicle front side portion of the cross member is in contact, and the vehicle rear side end portion of the slide rail is connected with the cross rail. Since the structure is positioned below the floor panel with which the vehicle front side portion of the member is in contact , even when the elevation angle of the slide rail is large, the above-mentioned is applied in response to a large bending load acting at the time of a frontal collision of the automobile. There is an advantage that the occurrence of the situation that the slide rail is deformed can be effectively prevented.

According to the second aspect of the present invention, the pair of slide rail mounting portions to which the left and right slide rails are attached are provided on the cross member, and the front wall surface of the cross member located between the two slide rail mounting portions is disposed on the rear side of the vehicle body. By providing a recessed part that is recessed on the side, the front and rear dimensions of the slide rail mounting part are sufficiently secured to maintain the slide rail support rigidity sufficiently, and the front and rear dimensions at the center part of the cross member are reduced. There is an advantage that a sufficient space is secured for the occupant's feet seated on the occupant seat and the cross member can be prevented from interfering when the occupant moves his / her foot to the rear side of the vehicle body. In addition, a rear passenger seat is disposed on the rear side of the cross member, and a recessed portion that is recessed on the front side of the vehicle body is provided on the rear wall surface of the cross member positioned between the slide rail mounting portions. Therefore, it is possible to secure a sufficient foot space for an occupant seated on the occupant seat on the rear side while sufficiently maintaining the support rigidity of the slide rail by the slide rail mounting portion.

According to the invention of claim 3 , the slide rail mounting portion provided at the outer side end portion of the cross member in the vehicle width direction is a side sill extending in the front-rear direction of the vehicle body along the left and right side portions of the floor panel. Since the outer end of the cross member to which the slide rail is attached is supported by the side sill, these can be firmly connected to each other so that the foot space of the occupant seated on the occupant seat or the rear occupant There is an advantage that the side sill can be effectively reinforced by the cross member at the time of a side collision of an automobile, etc., while ensuring a sufficient foot space for a passenger seated on the seat.

According to the invention of claim 4 , the slide rail mounting portion provided at the inner side end portion of the cross member in the vehicle width direction is joined to the tunnel portion extending in the front-rear direction of the vehicle body along the center portion of the floor panel. Therefore, by supporting the inner end portion of the cross member to which the slide rail is attached to the tunnel portion, it is possible to firmly connect them, and for the foot space of the occupant seated on the occupant seat or the rear occupant The cross member can effectively improve the rigidity of the vehicle body at the installation portion of the occupant's seat while ensuring a sufficient foot space for the occupant seated on the seat.

According to the invention which concerns on Claim 5 , the closed cross section extended in the vehicle width direction comprised by the bulging part of the said cross member extended in the vehicle width direction with the predetermined front-back width, and the floor panel located in the downward direction Thereby, the vehicle body rigidity in the installation part of the said slide rail can be improved effectively.

According to the invention of claim 6 , while effectively utilizing the closed cross section formed by the bulging portion of the cross member and the floor panel, it is possible to effectively improve the layout of the vehicle equipment, By making the closed cross section hermetically sealed by the bulging portion of the cross member and the floor panel, it is possible to effectively protect vehicle equipment including a battery unit with low water resistance disposed in the closed cross section. There are advantages.

According to the seventh aspect of the invention, since the vehicle equipment is disposed in the bulging portion formed in the floor panel corresponding to the bulging portion of the cross member, means for bulging the floor panel downward, etc. There is an advantage that the vehicle equipment can be arranged by effectively using the space below the cross member without taking the measures.

According to the invention of claim 8 , since the vehicle equipment can be installed in the bulging part of the cross member through the opening formed in the floor panel located below the installation part of the cross member, There is an advantage that the vehicle equipment can be laid out by making the maximum use of the space below the bulge.

According to the ninth aspect of the present invention, a battery unit that is long and can be uniformly cooled by effectively utilizing the cross member disposed below the pair of left and right occupant seats is provided for the cross member. It can arrange | position below.

According to the invention of claim 1 0, because of the structure to the wall on the cross member which is set to a value larger than the thickness of the floor panel for mounting the slide rails, or increase the thickness of the floor panel, Without taking measures such as providing a reinforcing member to reinforce the mounting part of the slide rail, it is possible to sufficiently secure the support rigidity of the slide rail, effectively reducing the number of parts and reducing the vehicle weight There is an advantage that the weight can be reduced.

  FIG. 1 and FIG. 2 show a schematic configuration of a vehicle compartment forming portion provided with a vehicle seat mounting structure according to an embodiment of the present invention. An occupant seat 4 comprising a driver seat and a passenger seat provided with a seat cushion 2 and a seat back 3 is installed on the floor panel 1 constituting the floor surface of the vehicle compartment forming portion, and left and right below A pair of cross members 5 are extended in the vehicle width direction. A pair of left and right slide rails 6 that slidably support the occupant seat 4 in the front-rear direction of the vehicle body are provided at a predetermined elevation angle (for example, an elevation angle of about 15 ° to 20 °) below both side portions of the seat cushion 2. It is arranged in a state of tilting upward.

  As shown in FIGS. 3 and 4, the cross member 5 includes a pair of front and rear flange portions 7 and 8 extending in the vehicle width direction, and a bulging portion 9 that bulges to the upper side of the vehicle body with a predetermined front and rear width. It is formed of a panel material having a plate thickness larger than that of the floor panel 1. The bulging portion 9 of the cross member 5 includes a front wall surface 10 rising upward from the rear end of the front flange portion 7, a rear wall surface 11 rising upward from the front end of the rear flange portion 8, the front wall surface 10 and the rear wall surface. 11 is formed in a U-shaped cross section by an upper wall surface 12 spanned between the upper end portions of 11. In addition, since the total height of the front wall surface 10 is set to a value larger than the rear wall surface 11 by a predetermined amount, the upper wall surface 12 of the cross member 5 is inclined forward and upward at an angle corresponding to the elevation angle of the slide rail 6. It is formed to be in a state.

On the outer side and the inner side of the cross member 5 in the vehicle width direction, the front-rear dimension is a value that substantially corresponds to the total length of the slide rail 6, that is, the front-rear dimension of the slide rail 6, or substantially the same. The slide rail mounting portions 13 and 14 are set so as to be slightly shorter than the front and rear dimensions within a range in which the support rigidity of 6 can be sufficiently secured. Then, the slide rail 6 disposed below the both sides of the seat cushion 2 is bolted to the slide rail mounting portions 13, 14. It is configured to support.

  Further, as shown in FIG. 5, the end of the slide rail mounting portion 13 disposed on the outer side in the vehicle width direction of the cross member 5 extends along the left and right side portions of the floor panel 1 in the longitudinal direction of the vehicle body. The end portion of the slide rail mounting portion 14 that is joined to the side wall portion of the side sill 15 that extends in the direction and disposed on the inner side in the vehicle width direction of the cross member 5 extends along the center portion of the floor panel 1. Are joined to the side wall portion of the tunnel portion 16 extending in the longitudinal direction of the vehicle body.

  On the front wall surface 10 of the cross member 5 located between the slide rail mounting portions 13 and 14, as shown in FIGS. 3 and 4, a recessed portion 17 that is recessed toward the rear side of the vehicle body is formed. On the rear wall surface 11 of the cross member 5 positioned between the slide rail mounting portions 13 and 14, a recessed portion 18 that is recessed toward the front side of the vehicle body is formed. Thereby, a narrow width portion 19 having a small front-rear dimension L as compared with the slide rail mounting portions 13 and 14 is formed in the center portion of the cross member 5.

  A closed cross section 20 extending in the vehicle width direction is formed by the bulging portion 9 of the cross member 5 and the floor panel 1 positioned below the bulging portion 9, and a flat shape extending in the vehicle width direction is formed in the closed cross section 20. Vehicle equipment 21 is provided. The vehicle equipment 21 includes a battery unit having a flat battery body 22, a fan duct 23 disposed on the front side thereof, and a rectifier 24 disposed on the rear side of the battery body 22. Yes. The upper wall surface 12 of the cross member 5 is formed with an opening 25 for installing the vehicle equipment 21 made of the battery unit in the closed cross section 20, and for closing the opening 25. The lid body 26 is detachably attached.

  As shown in FIGS. 6 and 7, a pair of left and right slide members 27 attached to the lower surface of the seat cushion 2 are supported on the passenger seat 4 slidably along the slide rail 6, and the seat Sliding means 28 for slidably displacing the cushion 2 along the slide rail 6 in the front-rear direction of the vehicle body, and the seating surface of the seat cushion 2 is tilted along a predetermined movement locus in conjunction with the sliding displacement of the seat cushion 2. Tilt means 29 for displacement is provided.

  The slide means 28 includes a rack gear 30 fixed to the side wall surface of the slide rail 6, a rolling gear 31 that is rotatably supported by the slide member 27 and rolls on the rack gear 30, and the rolling gear 31. And a drive gear 32 that meshes with each other. Then, according to the rotational force input to the drive gear 32 from the drive motor (not shown) via the torque cable 33, the rolling gear 31 is driven to roll on the rack gear 30, so that the seat cushion 2 and The slide member 27 is slidably displaced from the front position indicated by the solid line in FIG. 6 to the rear position indicated by the phantom line to adjust the front-rear position of the occupant seat 4. Note that the rolling gear 31 may be directly driven by connecting a torque cable for transmitting a rotational force from a driving motor (not shown) to the rolling gear 31, or for manual operation. A corresponding rotational driving force may be input to the rolling gear 31 or the driving gear 32.

  Further, the tilt means 29 is integrated with the drive gear 32 and the support shaft 35 that penetrates the pivotal support portion of the front bracket 34 provided on the lower surface of the front portion of the seat cushion 2 and is supported by the slide member 27. A rotating driven gear 36, a drive lever 37 formed with a sector gear 37a meshing with the driven gear 36 at the base end portion, and a tip end portion thereof are connected to a rear bracket 38 provided on the rear lower surface of the seat cushion 2. And a link plate 39. The driven gear 36 is rotationally driven in accordance with the rotational force transmitted from the torque cable 33 to the drive gear 32, and the drive lever 37 is driven and oscillated by the driven gear 36. Thus, the rear end portion of the seat cushion 2 is driven up and down with the support shaft 35 pivotally supported by the front bracket 34 as a fulcrum.

  Specifically, when the rolling gear 31 is rotationally driven in a direction to move the occupant seat 4 to the front side of the vehicle body as indicated by an arrow a in FIG. The driving gear 32 and the driven gear 36 of the tilt means 29 are rotationally driven in the direction b opposite to a, and the sector gear 37a is rotationally driven by the driven gear 36 as shown by the arrow c, whereby the tip of the driving lever 37 is As a result, the seat cushion 2 is brought into a state close to a horizontal state. On the other hand, when the occupant seat 4 is moved to the rear side of the vehicle body, the rolling gear 31, the drive gear 32, and the driven gear 36 are driven to rotate by rotating in the opposite direction to that of the forward movement, respectively. The seat cushion 2 is configured to be in a tilted state in which the front end portion of the lever 37 swings in the descending direction and the rear cushion is lowered.

In the vehicle seat mounting structure in which the slide rail 6 that supports the seat cushion 2 of the occupant seat 4 so as to be movable in the front-rear direction of the vehicle body is tilted forward and upward at a predetermined elevation angle as described above. A cross member 5 having a bulging portion 9 that bulges upward from the vehicle body with a predetermined front-rear width from above the floor panel 1 in the vehicle interior extends in the vehicle width direction, and an upper wall surface 12 of the cross member 5 is Since the slide rail 6 is inclined at an angle corresponding to the elevation angle, and the slide rail 6 is attached to the upper wall surface 12 of the cross member 5, the seat cushion 2 of the passenger seat 4 is supported so as to be movable in the longitudinal direction of the vehicle body. Although the slide rail 6 is inclined forward and upward at a predetermined elevation angle, there is an advantage that the supporting rigidity can be sufficiently secured.

  That is, since the cross member 5 provided with the bulging portion 9 that bulges upward from the vehicle body with a predetermined front-back width from the floor panel 1 in the vehicle interior to the installation portion of the slide rail 6 extends in the vehicle width direction. The vehicle body rigidity at the installation portion of the slide rail 6 can be sufficiently secured. Since the upper wall surface 12 of the bulging portion 9 is inclined at an angle corresponding to the elevation angle of the slide rail 6 and the slide rail 6 is attached to the upper wall surface 12, the passenger seat 4 is used during a frontal collision of the automobile. A large impact load acting on the slide rail 6 from the seat cushion 2 can be stably supported by the entire cross member 5.

Therefore, even when the elevation angle of the slide rail 6 is a steep angle of about 15 ° to 20 °, as shown in FIG. 6, a large corresponding to the horizontal impact load α acting at the time of a frontal collision of an automobile or the like. Bending load, that is, a moment load β that attempts to bend and deform in the direction of lifting the front end portion of the slide rail 6 with the rear end attachment portion as a fulcrum while using the front end attachment portion of the slide rail 6 as a load application point, more and stably supported child, there is an advantage that the occurrence of a situation that the slide rail 6 is deformed can be effectively prevented.

  Further, by supporting a large impact load or the like acting on the installation portion of the occupant seat 4 by the cross member 5 at the time of a side collision of the automobile, the vehicle body can be effectively prevented from being deformed. Moreover, when the elevation angle of the slide rail 6 is set to a steep angle as described above, the longitudinal dimension (dimension in the vehicle longitudinal direction on the horizontal plane) M of the slide rail 6 is the total length N as shown in FIG. Thus, the load acting on the slide rail 6 can be stably supported by the cross member 5 without setting the front-rear width of the bulging portion 9 to a large value. .

  In particular, as shown in the above embodiment, when the slide member 6 can be supported by the cross member 5 alone, specifically, the dimension in the longitudinal direction of the vehicle body on the horizontal plane is the longitudinal dimension M of the slide rail 6. Is provided on the cross member 5 and the thickness of the slide rail mounting portions 13 and 14 is set to a predetermined value. When the slide rail 6 can be stably supported, the slide rail 6 can be supported with sufficient rigidity with a simple and compact configuration without providing a separate mounting member. The slide rail 6 is bent and deformed according to the moment load etc. with the front end mounting portion of the rail 6 as the load application point and the rear end mounting portion as a fulcrum. There is an advantage that the occurrence of a situation can be prevented effectively, such that.

  Further, as shown in the above-described embodiment, the sliding means 28 that slides and displaces the seat cushion 2 of the occupant seat 4 in the front-rear direction of the vehicle body along the slide rail 6 and the seat in conjunction with the sliding displacement of the seat cushion 2. In the case where the tilting means 29 for tilting and displacing the seating surface of the cushion 2 along a preset movement locus is provided, the seat according to an operation for adjusting the front-rear position of the occupant seat 4 with a simple and compact configuration. There is an advantage that the inclination angle of the cushion 2 can be automatically adjusted.

Moreover, in the seat mounting structure in which the pair of left and right slide rails 6 are arranged along the lower sides of the both sides of the seat cushion 2 as shown in the above embodiment, the pair of left and right slide rails to which both slide rails 6 are mounted. the parts 13, 14 is provided on the upper wall surface 12 of the cross member 5, the front wall 10 of the cross member 5 located between the two slide rail mounting portions 13 and 14, recesses that recessed into the rear of the vehicle body side When 18 is provided, the front-rear dimension L at the center part of the cross member 5 is reduced while sufficiently securing the front-rear dimension of the slide rail mounting portions 13, 14 and sufficiently maintaining the support rigidity of the slide rail 6. can do. Accordingly, a sufficient space is secured for the foot of the occupant B seated on the occupant seat 4 including the driver's seat and the passenger seat, and the occupant B moves the foot to the rear side of the vehicle body without being obstructed by the cross member 5. There is an advantage that can be made.

  Furthermore, in the above embodiment, in the automobile in which the rear passenger seat 40 is disposed on the rear side of the cross member 5, the rear wall surface of the cross member 5 positioned between the slide rail mounting portions 13 and 14. 11 is provided with a recessed portion 19 that is recessed into the front side of the vehicle body, so that the support rigidity of the slide rail 6 by the slide rail mounting portions 13 and 14 is sufficiently maintained, and as shown in FIG. A sufficient space for the feet of the occupant R seated on the seat 40 can be secured, and the occupant R can move his / her feet forward of the vehicle body without being obstructed by the cross member 5.

  Further, as shown in the above-described embodiment, the slide rail mounting portion 13 provided at the outer side end portion of the cross member 5 in the vehicle width direction extends in the front-rear direction of the vehicle body along the left and right side portions of the floor panel 1. When the side sill 15 is joined, the outer end of the cross member 5 having the front and rear dimensions corresponding to the slide rail 6 is supported by the side sill 15 so that they can be firmly connected. Therefore, the side sill 15 is effectively formed by the cross member 5 while sufficiently securing the foot space of the occupant B seated on the occupant seat 4 or the foot space of the occupant R seated on the rear occupant seat 40. There is an advantage that the side sill 15 can be prevented from being deformed during a side collision of the automobile.

  Further, as shown in the above-described embodiment, a tunnel that extends in the front-rear direction of the vehicle body along the center portion of the floor panel 1 is provided with a slide rail mounting portion 14 provided at the inner end in the vehicle width direction of the cross member 5. When joined to the portion 16, the inner end portion of the cross member 5 having front and rear dimensions corresponding to the slide rail 6 is supported by the tunnel portion 16, so that they can be firmly connected. Therefore, the occupant seat 4 can be installed by the cross member 5 while sufficiently securing the foot space of the occupant B seated on the occupant seat 4 or the foot space of the occupant R seated on the occupant seat 40 on the rear side. The rigidity of the vehicle body at the portion can be improved more effectively.

  In the above embodiment, the closed section 20 extending in the vehicle width direction is formed by the bulging portion 9 of the cross member 5 extended in the vehicle width direction with a predetermined front-rear width and the floor panel 1 positioned below the bulging portion 9. The vehicle body rigidity in the installation part of the slide rail 6 can be effectively improved. In particular, as shown in the above embodiment, when the vehicle equipment 21 is disposed in the closed section 20 formed by the bulging portion 9 of the cross member 5 and the floor panel 1, By effectively utilizing the lower space, the layout of the vehicle equipment 21 can be effectively improved. In addition, by closing the closed section 20 with the bulging portion 9 of the cross member 5 and the floor panel 1, the vehicle equipment 21 comprising a battery unit with low water resistance disposed in the closed section 20 is provided. There is an advantage that can be effectively protected.

  Instead of the above-described embodiment in which the vehicle equipment 21 is arranged in the closed section 20 formed by the bulging portion 9 of the cross member 5 and the floor panel 1 as described above, FIG. As described above, a bulging portion 41 bulging upward corresponding to the bulging portion 9 of the cross member 5 is provided on the floor panel 1, and the vehicle equipment 21 is disposed in the bulging portion 9. Also good. In the case of such a configuration, the vehicle equipment 21 can be arranged by effectively using the space below the cross member 5 without taking measures such as bulging the floor panel 1 downward. Therefore, there is an advantage that the ground height of the floor panel 1 can be sufficiently secured or the floor can be lowered.

  Further, as shown in FIG. 9, an opening 42 for installing the vehicle equipment 21 is formed in the floor panel 1 positioned below the installation part of the cross member 5 in the bulging part 9 of the cross member 5. In this case, the vehicle equipment 21 can be laid out by making the maximum use of the space below the bulging portion 9. 8 and 9, reference numeral 43 denotes a strap member for holding the vehicle equipment 21 on the vehicle body. The vehicle equipment disposed in the bulging portion 9 of the cross member 5 or the bulging portion 41 of the floor panel 1 is not limited to the battery unit but is disposed in the exhaust passage. A silencer (muffler) or a catalytic converter for exhaust gas purification can be considered.

  In addition, although the said embodiment demonstrated the example which applied this invention about the motor vehicle provided with the tunnel part 16 extended in the front-back direction of a vehicle body along the center part of the floor panel 1, about the motor vehicle without the said tunnel part 16 The present invention is also applicable. In this case, as shown in FIG. 10 (bottom view), an integral cross member 5a extending in the vehicle width direction in the vehicle interior is disposed on the floor panel 1 and provided at both left and right ends of the cross member 5a. The slide rail mounting portion 13a is joined to the left and right side sills 15 extending in the front-rear direction of the vehicle body along the left and right side portions of the floor panel 1, and is integrally provided at the center in the vehicle width direction of the cross member 5a. It is desirable that the slide rail mounting portion 14a can be mounted with a slide rail located on the inner side of the vehicle body.

  In addition, as shown in FIG. 10, the cross member 5a is disposed below the pair of left and right occupant seats 4 and 4 installed in the passenger compartment, and straddles the lower portions of the occupant seats 4 and 4. Thus, the vehicle equipment 21 formed of a long and flat battery unit extending in the vehicle width direction may be arranged below the cross member 5a. The battery unit formed in this flat shape can cool the entire battery more uniformly than a normal battery having a predetermined height, and the space formed below the cross member 5a is effective. There is an advantage that it can be used and arranged. A battery unit (capacitor) that is charged by using a so-called capacitor function may be arranged as the vehicle equipment 21 in the lower part of the cross member 5a or the like.

Further, as shown in the above embodiment, when the thickness of the cross member 5 is set to a value larger than the thickness of the floor panel 1 and the slide rail 6 is attached to the upper wall surface 12 of the cross member 5. the, or increase the thickness of the Furoapane Le, without taking measures such as or provided with a reinforcing member for reinforcing the mounting portion of the slide rail, can be sufficiently ensured support rigidity of the slide rail 6 There is an advantage that the weight of the vehicle body can be effectively reduced by reducing the number of parts.

It is side surface sectional drawing which shows embodiment of the seat mounting structure of the motor vehicle based on this invention. 1 is a plan view showing an embodiment of an automobile seat mounting structure according to the present invention. It is a top view which shows the specific structure of a cross member and a slide rail. It is side surface sectional drawing which shows the specific structure of a cross member and a slide rail. It is front sectional drawing which shows the attachment state of a cross member. It is explanatory drawing which shows the position adjustment function of a passenger | crew's seat. It is a perspective view which shows the concrete structure of the sliding means and tilting means of a passenger | crew's seat. It is side surface sectional drawing which shows another embodiment of the vehicle seat mounting structure which concerns on this invention. It is side surface sectional drawing which shows further embodiment of the vehicle seat mounting structure which concerns on this invention. It is a bottom view which shows further embodiment of the seat mounting structure of the motor vehicle based on this invention.

1 the floor panel 2 the seat cushion 4 occupant's seat 5 cross member 6 slide rail 9 bulging part 12 upper wall surfaces 13 and 14 slide rail attachment part 15 side sill 16 tunnel portion 20 closed section 21 vehicle accessory 28 sliding means 29 tilting means

Claims (10)

An automobile seat mounting structure in which a slide rail that supports a seat cushion of an occupant seat so as to be movable in the front-rear direction of the vehicle body is inclined forward and upward at a predetermined elevation angle. A cross member having a bulging portion that bulges upward from the vehicle body with a predetermined longitudinal width from the panel extends in the vehicle width direction, and the upper wall surface of the cross member is inclined at an angle corresponding to the elevation angle of the slide rail. is, Rutotomoni mounting the slide rails on the upper wall of the cross member, floor panel vehicle rear side portion of the cross member is in contact, is positioned on the lower side than the floor panel vehicle front side of the cross member is in contact And, the vehicle rear side end portion of the slide rail is positioned below the floor panel with which the vehicle front side portion of the cross member contacts. Seat mounting structure for an automobile, characterized in that the. A pair of left and right slide rails are arranged along the lower side of both sides of the seat cushion, and a pair of left and right slide rail mounting portions to which both slide rails are mounted are provided on the cross member, and are positioned between the slide rail mounting portions. The front wall surface of the cross member is provided with a recessed portion that is recessed on the rear side of the vehicle body, and a rear passenger seat is disposed on the rear side of the cross member, and between the slide rail mounting portions. The seat mounting structure for an automobile according to claim 1, wherein a recessed portion that is recessed into the front side of the vehicle body is provided on a rear wall surface of the cross member that is positioned . The slide rail mounting portion provided at the outer side end portion of the cross member in the vehicle width direction is joined to a side sill extending in the front-rear direction of the vehicle body along the left and right side portions of the floor panel. Item 3. A vehicle seat mounting structure according to Item 2 . The slide rail mounting portion provided at an inner side end portion of the cross member in the vehicle width direction is joined to a tunnel portion extending in the front-rear direction of the vehicle body along the center portion of the floor panel. Item 3. A vehicle seat mounting structure according to Item 2 . 2. The vehicle seat mounting structure according to claim 1 , wherein a closed section extending in the vehicle width direction is formed by the bulging portion of the cross member and the floor panel positioned below the bulging portion . 6. The vehicle seat mounting structure according to claim 5 , wherein the vehicle equipment is disposed in a closed cross section formed by the bulging portion of the cross member and the floor panel . With bulging portion which bulges upward in response to the swelling portion of the cross member is provided on the floor panel, in claim 5, characterized in that the vehicle accessory is disposed within the expanded portion The vehicle seat mounting structure described. 2. The vehicle seat according to claim 1, wherein an opening for installing the vehicle equipment in the bulging portion of the cross member is formed in a floor panel positioned below the installation portion of the cross member. Mounting structure. A vehicle comprising a flat battery unit in which the cross member is disposed below a pair of left and right occupant seats installed in a passenger compartment and extends in the vehicle width direction so as to straddle the lower portions of the occupant seats. The vehicle seat mounting structure according to any one of claims 5 to 8 , wherein the equipment is disposed below the bulging portion of the cross member . 2. The seat mounting structure for an automobile according to claim 1 , wherein the thickness of the cross member is set to a value larger than the thickness of the floor panel .

Images