JP6098288B2 - Vehicle seat - Google Patents

Description

  The present invention relates to a vehicle seat.

  Conventionally, a seat main body having a seat cushion and a seat back, a slide mechanism that is provided between the seat main body and a vehicle component such as a vehicle floor, and that is slidably installed on the vehicle component, and a slide 2. Description of the Related Art A vehicle seat having a bracket disposed above a mechanism for fixing a seat body and a plurality of fixing portions for fixing the slide mechanism and the bracket is known (for example, Patent Document 1).

  In the vehicle seat in Patent Document 1, a bracket is disposed between both members in order to fix the seat body to the slide mechanism. The bracket is formed integrally with the frame member of the seat cushion and extends toward the slide mechanism. A plurality of locations are fixed between the bracket and the slide mechanism by fastening bolts and nuts. Also, bolts and nuts that are difficult to fasten are fixed by welding. However, since there are a plurality of fastening locations with bolts and nuts, it is necessary to match the respective fastening locations, so that the mounting workability is poor. Here, it can be considered that if the number of the plurality of fixing portions for fixing the slide mechanism and the bracket is reduced, the mounting workability can be reduced.

JP 2012-30634 A

  However, the portions of the plurality of fixing portions that fix the slide mechanism and the bracket are portions to which a load from the seat body is applied. For this reason, if the number of fixing portions for fixing the slide mechanism and the bracket is reduced, the slide mechanism and the bracket are easily separated from each other. For this reason, it is not preferable to reduce the number of the fixing portions in view of the structural strength for fixing the seat body to the slide mechanism. In addition, there are times when it is desired to replace the vehicle body such as a seat body and a slide mechanism in units of single items. However, if there is a portion to be fixed by welding in the fixing portion, it becomes difficult to replace the seat main body, the slide mechanism, etc. in units of single items.

  The present invention was devised in view of such points, and the problem to be solved by the present invention is to secure the structural strength when the seat body is fixed to the slide mechanism, while the slide body is moved to the slide mechanism. An object of the present invention is to provide a vehicle seat capable of simplifying the mounting operation when mounting to a vehicle.

In order to solve the above problems, the vehicle seat of the present invention takes the following means.
First, a vehicle seat according to a first aspect of the present invention is provided between a seat body having a seat cushion and a seat back, and a vehicle constituent member such as a floor surface of the vehicle, and slides on the seat body. A vehicle having a slide mechanism that can be installed on a vehicle component member, a bracket that is disposed above the slide mechanism and that fixes the seat body, and a plurality of fixing portions that fix the slide mechanism and the bracket. And at least one of the plurality of fixing portions is configured such that one of the slide mechanism and the bracket is inserted into the other of the slide mechanism and the bracket, whereby the slide mechanism and the bracket are It is a fitting part fitted in the state which suppresses separation, It is characterized by the above-mentioned.

  According to the first aspect, at least one of the plurality of fixing portions suppresses the separation between the slide mechanism and the bracket by inserting one of the slide mechanism and the bracket into the other of the slide mechanism and the bracket. It is a fitting part fitted in a state. Since the fitting portion is fitted in a state that suppresses the separation between the slide mechanism and the bracket, it is possible to ensure the structural strength when the seat body is fixed to the slide mechanism. Further, the fitting portion can simplify the attachment work when attaching the seat body to the slide mechanism. Moreover, a fitting part is a structure which can cancel | release the fixed state of both members by extracting from the state in which both members were inserted. Therefore, it becomes easy to replace the seat body, the slide mechanism, and the like on a single unit basis.

  Next, the vehicle seat according to a second aspect of the present invention is the vehicle seat according to the first aspect, wherein the fitting portion is inserted in a hole formed in one of the slide mechanism and the bracket and connected in advance, The slide mechanism and a through hole provided on the other side of the bracket, and the slide mechanism and the bracket are not separated by fitting the pin and the through hole.

  According to the second invention, the fitting portion includes a pin inserted through a hole formed in one of the slide mechanism and the bracket and coupled in advance, and a through hole provided in the other of the slide mechanism and the bracket. And a pin and a through hole are fitted to each other. Thereby, the fitting part can further simplify the mounting operation without complicating the structure.

  A vehicle seat according to a third aspect of the present invention is the vehicle seat according to the first aspect or the second aspect, wherein a plurality of the fixing portions are arranged in the longitudinal direction of the slide mechanism, The fitting part in the part is arranged closer to the center side in the longitudinal direction of the slide mechanism than the other fixing part.

  According to the third aspect, the fitting portions in the plurality of fixing portions are arranged closer to the center side in the longitudinal direction of the slide mechanism than the other fixing portions. On the center side in the longitudinal direction of the slide mechanism, it may be difficult to fasten with bolts and nuts. In the above-described configuration, the fitting portion is configured instead of the fastening operation using a bolt and a nut or the like on the center side in the longitudinal direction of the slide mechanism. As a result, it is possible to simplify the attachment work when attaching the seat body to the slide mechanism even at a site where the fastening work is difficult.

  Next, a vehicle seat according to a fourth invention is the vehicle seat according to any one of the second to third inventions, wherein the through hole in the fitting portion is in a state where the slide mechanism and the bracket are fixed. The slide mechanism is formed to extend in the longitudinal direction.

  According to the fourth invention, the through hole is formed to extend in the longitudinal direction of the slide mechanism in a state where the slide mechanism and the bracket are fixed. Thereby, when attaching a sheet | seat main body to a slide mechanism, it becomes the structure attached according to the slide direction of a slide mechanism. And after the fastening by the bolt and nut etc. by another fixing part is performed, the movement to a slide direction is also controlled. Further, the movement of the seat body is also restricted in the direction intersecting the sliding direction of the sliding mechanism. Thereby, after attaching a sheet | seat main body to a slide mechanism, separation | spacing of both can be suppressed further.

  Next, a vehicle seat according to a fifth aspect of the present invention is the vehicle seat according to any one of the second to fourth aspects, wherein the through hole is cut out in a slit shape from an end of the bracket. It is characterized by that.

  According to the fifth aspect, the through hole is formed in the bracket. Further, since the through hole of the bracket is formed by being cut out in a slit shape from the end portion, the pin is easily received. Therefore, it is possible to further simplify the mounting work when mounting the seat body to the slide mechanism.

  In the present invention, by taking the measures of the respective inventions described above, a vehicle capable of simplifying the mounting work when mounting the seat body to the slide mechanism while securing the structural strength when the seat body is fixed to the slide mechanism. Sheets can be provided.

1 is a perspective view of a vehicle seat according to an embodiment. It is a disassembled perspective view of the vehicle seat which concerns on embodiment. It is a top view in the III section of FIG. It is the IV-IV sectional view taken on the line of FIG. It is the partial top view which showed the modification 1 of the bracket of the vehicle seat which concerns on embodiment. It is the partial top view which showed the modification 2 of the bracket of the vehicle seat which concerns on embodiment. It is the partial top view which showed the modification 3 of the bracket of the vehicle seat which concerns on embodiment. It is the disassembled perspective view which showed the modification 4 of the bracket of the vehicle seat which concerns on embodiment.

  Below, embodiment of this invention is described using FIGS. 1-4. In the present embodiment, the rear seat of the vehicle seat will be described as an example of the vehicle seat. The directions indicated by appropriate arrows in the drawings are directions that coincide with the front, rear, upper, lower, outer, and inner sides of the vehicle to which the vehicle seat is applied. Each drawing mainly shows the internal structure of the seat body for easy understanding of the configuration of the embodiment. For this reason, the seat back 2 and the seat cushion 3 are mainly illustrated with an internal framework structure such as the back frame 2f and the cushion frame 3f constituting the skeleton, and equipment such as an outer skin and a seat pad attached to the outside is omitted. doing.

  The vehicle seat S (vehicle seat) is disposed as a rear seat of the vehicle as shown in FIG. The vehicle seat S includes a seat body 1 having a seat back 2 serving as a backrest portion and a seat cushion 3 serving as a seating portion. The seat back 2 has a back frame 2f forming a skeleton. The back frame 2f is formed in a substantially rectangular frame shape by appropriately bending and drawing pipe members and plate members made of steel. The seat cushion 3 includes a cushion frame 3f that forms a skeleton. The cushion frame 3f is formed in a substantially rectangular frame shape by appropriately bending and drawing pipe members and plate members made of steel. The seat body 1 is coupled to the cushion frame 3f by a reclining device 6 provided at the lower portion of the back frame 2f in the width direction. Accordingly, the seat back 2 is configured to be able to adjust the backrest angle with respect to the seat cushion 3 or to be moved forward to the upper side of the seat cushion 3. In the present embodiment, the reclining device 6 is configured only on the vehicle outer side in the width direction of the seat back 2, and the vehicle inner side in the width direction of the seat back 2 is configured with the seat back 2. The seat cushion 3 is pin-connected so as to be rotatable.

  As shown in FIGS. 1 and 2, the vehicle seat S has a seating position in the vehicle front-rear direction with respect to the floor surface F of the seat body 1 between the seat body 1 described above and the floor surface F (vehicle component) of the vehicle. It has a slide mechanism 10 that can be adjusted. The slide mechanism 10 is provided as a pair of left and right between the seat cushion 3 and the floor surface F. The slide mechanism 10 is located on both sides of the seat body 1 and is disposed in parallel with the vehicle longitudinal direction.

  As shown in FIGS. 1 and 2, the slide mechanism 10 mainly includes a lower rail 14 and an upper rail 12. The lower rail 14 is formed in a shape extending in the vehicle front-rear direction, and is disposed on the floor surface F. The upper rails 12 are disposed on the seat body 1 side, and are fitted into the lower rails 14 so as to be slidable in the rail longitudinal direction. Thereby, the upper rail 12 moves the seating position of the seat main body 1 in the vehicle front-rear direction along with the sliding movement. Further, the slide mechanism 10 includes a slide lock device 16 that can restrict or release the slide movement of the upper rail 12, and can fix the seat body 1 at an appropriate position in the front-rear direction. .

  As shown in FIG. 4, the slide mechanism 10 has a cylindrical shape in which a lower rail 14 and an upper rail 12 having a substantially U-shaped cross section overlap each other via rolling elements such as balls and rollers (not shown). Is done. Thus, the upper rail 12 is guided to be slidable in the front-rear direction with respect to the lower rail 14. Specifically, the upper rail 12 is formed in a certain cross-sectional shape as shown in the figure by bending a single flat plate member made of steel material in some places. Specifically, the cross-sectional shape of the upper rail 12 includes a flat plate-shaped upper surface portion 12u, flat plate-shaped right side surface portion 12x1 and left side surface portion 12y1 that hang straight from both sides thereof, and a flat plate folded inward from these lower ends. It is formed in a cross-sectional shape composed of a right-turn surface portion 12x2 and a left-turn surface portion 12y2 having a shape. On the other hand, the lower rail 14 is formed in a constant cross-sectional shape as shown in the figure by bending a single flat plate member made of steel material in some places. Specifically, the cross-sectional shape of the lower rail 14 is a flat plate-shaped lower surface portion 14u, a flat plate-shaped right side surface portion 14x1 and a left side surface portion 14y1 rising from both sides thereof, and a flat plate-shaped right side portion folded back outward from the upper ends thereof. It is formed in a cross-sectional shape including a return surface portion 14x2 and a left return surface portion 14y2.

  As shown in FIGS. 1 to 3, the vehicle seat S includes a bracket 20 that is disposed above the slide mechanism 10 and fixes the seat body 1. The bracket 20 is disposed on the vehicle rear side in the width direction of the cushion frame 3f, is integrally coupled to the pipe member of the cushion frame 3f, and extends toward the upper surface portion 12u of the upper rail 12 in the slide mechanism 10. ing. The bracket 20 has a substantially L-shaped cross section by bending a single flat plate member made of steel. The bracket 20 has a first surface portion 21 that is integrally coupled to the pipe member of the cushion frame 3 f and a second surface portion 22 that contacts the upper surface portion 12 u of the upper rail 12 of the slide mechanism 10.

  The vehicle seat S includes a plurality of fixing portions 30 that fix the slide mechanism 10 and the bracket 20 as shown in FIGS. A plurality of fixing portions 30 are arranged in the longitudinal direction of the slide mechanism 10. In the present embodiment, the fixing portion 30 includes a fastening portion 32 (another fixing portion) that is fastened and fixed by a bolt 34 and a nut 36, and a fitting portion 40 that fits in a state in which the slide mechanism 10 and the bracket 20 are prevented from being separated. Have two.

  As shown in FIGS. 1 to 4, the fastening portion 32 is disposed on the vehicle rear side from the fitting portion in the longitudinal direction of the slide mechanism 10. Further, the fastening portion 32 is disposed on the vehicle rear side in the second surface portion 22 when viewed from the bracket 20. An insertion hole (not shown) through which the bolt 34 can be inserted is formed in the second surface portion 22 on the vehicle rear side and the upper surface portion 12 u of the upper rail 12. Further, a nut 36 is fixed in advance by welding at the position corresponding to the above-described insertion hole on the rear side of the second surface portion 22 of the vehicle. Thereby, the slide mechanism 10 and the bracket 20 by the fastening portion 32 are fixed by fastening the bolt 34 to the nut 36 in a state where the bracket 20 and the upper surface portion 12u of the upper rail 12 are overlapped. In addition, the aspect which welds the volt | bolt 34 to the upper surface part 12u of the upper rail 12 previously may be sufficient.

  The fitting part 40 suppresses the separation between the slide mechanism 10 and the bracket 20 by inserting a pin 42 provided on the upper rail 12 of the slide mechanism 10 into the through hole 50 of the bracket 20 as shown in FIGS. It fits into the state. The fitting portion 40 is arranged on the center side (vehicle front side) in the longitudinal direction of the slide mechanism 10 with respect to the fastening portion 32 (other fixed portion). Further, the fitting portion 40 is disposed on the vehicle front side in the second surface portion 22 when viewed from the bracket 20. A hole portion 12h is formed at a position of the upper surface portion 12u of the upper rail 12 facing the vehicle front side of the second surface portion 22. A pin 42 is coupled to the hole 12h. The pin 42 has a head 44, a first shaft 46, and a second shaft 48. The first shaft 46 is formed with a shaft diameter 46d having substantially the same length as an opening width 50d of a through hole 50 described later. The second shaft 48 is formed with a shaft diameter 48 d that can be inserted into the hole 12 h of the upper surface portion 12 u of the upper rail 12. The shaft diameter 46d of the first shaft 46 is formed to be larger than the shaft diameter 48d of the second shaft 48. The head 44 is formed with a diameter larger than the shaft diameter 46 d of the first shaft 46. The pin 42 is inserted into the hole 12h of the upper surface portion 12u of the upper rail 12 and then joined to the upper rail 12 in advance by caulking the end portion. The pins 42 are arranged in a positional relationship in which the upper surface portion 12u and the lower surface portion 14u face each other even when the upper rail 12 of the slide mechanism 10 slides forward or backward with respect to the lower rail 14. . That is, the pin 42 is disposed at a position where the bolt 34 and the nut 36 cannot be fastened and fixed in a state where the upper rail 12 and the lower rail 14 are assembled. On the vehicle front side of the second surface portion 22 of the bracket 20, a through hole 50 is formed by being cut out in a slit shape from the end portion. The through hole 50 is formed to extend in the longitudinal direction of the slide mechanism 10 in a state where the slide mechanism 10 and the bracket 20 are fixed. Thus, the slide mechanism 10 and the bracket 20 are not separated by fitting the pin 42 and the through hole 50 together.

  The seat body 1 and the slide mechanism 10 are fixed as follows. As shown in FIGS. 2 to 4, first, the through hole 50 provided in the bracket 20 is inserted into the pin 42 of the slide mechanism 10. At this time, the first shaft 46 having a shaft diameter 46d substantially the same length as the opening width 50d of 50 is fitted. Since the second surface portion 22 of the bracket 20 is sandwiched between the head portion 44 of the pin 42 and the upper surface portion 12u of the upper rail 12, the state in which the separation from the upper surface portion 12u is suppressed is maintained. That is, the state which suppresses separation of the slide mechanism 10 and the bracket 20 is maintained. Then, the fastening part 32 on the rear side of the cushion frame 3f is fastened and fixed by a bolt 34 and a nut 36. Note that the cushion frame 3f and the slide mechanism 10 are fixed to the front side of the cushion frame 3f by fastening members such as bolts and nuts.

  As described above, according to the vehicle seat S of the embodiment, at least one of the plurality of fixed portions 30 is configured to suppress the separation between the slide mechanism 10 and the bracket 20 by inserting the bracket 20 into the slide mechanism 10. It has the fitting part 40 fitted in. Since the fitting part 40 fits in the state which suppresses separation | spacing of the slide mechanism 10 and the bracket 20, it can also ensure the structural strength at the time of fixing the sheet | seat main body 1 to the slide mechanism 10. FIG. In addition, the fitting portion 40 can simplify the attachment work when attaching the seat body 1 to the slide mechanism 10. Moreover, the fitting part 40 is a structure which can cancel | release the fixed state of the slide mechanism 10 and the bracket 20 by extracting the pin 42 from the state which inserted the pin 42 of the slide mechanism 10 in the through-hole 50 of the bracket 20. FIG. That is, in addition to simplification of attachment work, simplification of removal work can be achieved. Therefore, it becomes easy to replace the sheet main body 1, the slide mechanism 10 and the like in single unit units.

  The fitting portion 40 includes a pin 42 inserted in advance through a hole 12 h formed in one of the slide mechanism 10 and the bracket 20, and a through hole 50 provided in the other of the slide mechanism 10 and the bracket 20. , And the pin 42 and the through hole 50 are fitted together. Thereby, the fitting part 40 can further simplify the mounting operation without complicating the structure.

  Moreover, the fitting part 40 in the some fixing | fixed part 30 is arrange | positioned in the center side of the longitudinal direction of the slide mechanism 10 rather than the fastening part 32 (other fixing | fixed part). On the center side in the longitudinal direction of the slide mechanism 10, it may be difficult to fasten with the bolt 34 and the nut 36. In the present embodiment, the pin 42 has a positional relationship in which the upper surface portion 12u and the lower surface portion 14u face each other even when the upper rail 12 of the slide mechanism 10 slides forward or backward with respect to the lower rail 14. Be placed. That is, the pin 42 is disposed at a position where the bolt 34 and the nut 36 cannot be fastened and fixed in a state where the upper rail 12 and the lower rail 14 are assembled. However, in the present embodiment, the fitting portion 40 is configured instead of the fastening operation by the bolt 34, the nut 36, and the like on the center side in the longitudinal direction of the slide mechanism 10. As a result, it is possible to simplify the attachment work when attaching the seat body 1 to the slide mechanism 10 even in a region where the fastening work is difficult.

  The through hole 50 is formed to extend in the longitudinal direction of the slide mechanism 10 in a state where the slide mechanism 10 and the bracket 20 are fixed. Thus, when the seat body 1 is attached to the slide mechanism 10, the seat body 1 is attached in accordance with the slide direction of the slide mechanism 10. And after the fastening by the bolt 34 and the nut 36 etc. by the fastening part 32 (other fixed part) is performed, the movement to a sliding direction is also controlled. Further, the movement of the seat body 1 is also restricted in the direction intersecting the sliding direction of the sliding mechanism 10. Thereby, after attaching the sheet | seat main body 1 to the slide mechanism 10, separation of both can be suppressed further.

  The through hole 50 is formed in the bracket 20. Further, since the through hole 50 of the bracket 20 is cut out in a slit shape from the end portion, the pin 42 can be easily received. Therefore, it is possible to further simplify the attachment work when attaching the seat body 1 to the slide mechanism 10.

As mentioned above, although embodiment of this invention was described, the vehicle seat of this invention is not limited to embodiment, It can implement with other various forms. For example, there may be a plurality of fitting portions 40 in the fixed portion 30.
Moreover, in this embodiment, although the pin 42 was provided in the slide mechanism 10 and the through-hole 50 was comprised in the bracket 20 was shown, the reverse structure may be sufficient.
Moreover, the fitting part 40 in the some fixing | fixed part 30 showed about the structure arrange | positioned in the center side of the longitudinal direction of the slide mechanism 10 rather than the fastening part 32 (other fixing | fixed part). However, the fitting portion 40 may be configured not to be disposed on the center side in the longitudinal direction of the slide mechanism 10. For example, it may be configured at the rear end of the slide mechanism 10.
Moreover, although the through-hole 50 in the fitting part 40 was shown about the structure extended and formed in the longitudinal direction of the slide mechanism 10 in the state to which the slide mechanism 10 and the bracket 20 are fixed, it is not limited to this. For example, the following modifications may be possible.

  FIG. 5 shows a first modification of the present embodiment. As shown in FIG. 5, the through-hole 150 may be cut out from a direction intersecting the longitudinal direction of the slide mechanism 10 in a state where the slide mechanism 10 and the bracket 20 are fixed.

  FIG. 6 shows a second modification of the present embodiment. Further, as shown in FIG. 6, the through-hole 250 is cut out from a direction intersecting the longitudinal direction of the slide mechanism 10 in a state where the slide mechanism 10 and the bracket 20 are fixed, and then bent and bent. It may be formed by extending in the longitudinal direction.

  In the present embodiment, the through hole 50 is shown as being formed by being cut out in a slit shape from the end of the bracket 20, but is not limited thereto. FIG. 7 shows a third modification of the present embodiment. As shown in FIG. 7, the through-hole 350 is formed as a hole that penetrates the second surface 22 of the bracket 20, and includes a first region 351 that receives the head of the pin and a first shaft 46 of the pin 42 (see FIG. 7). 4) may have a second region 352 having an opening width 350d that can be inserted.

  Further, the fitting portion 40 is not limited to the configuration of the pin 42 and the through hole 50 or the like. FIG. 8 shows a fourth modification of the present embodiment. As shown in FIG. 8, the fitting portion 440 is provided with a protrusion 452 that protrudes integrally from an end portion on the front side of the bracket 20. Further, the upper rail 12 of the slide mechanism 10 is provided with a through hole 412h that can receive the protrusion 452. As described above, the fitting portion 440 may be configured to be fitted in a state in which the slide mechanism 10 and the bracket 20 are prevented from being separated by inserting the protrusion 452 into the through hole 412h.

S ... Vehicle seat (vehicle seat)
DESCRIPTION OF SYMBOLS 1 ... Seat main body 2 ... Seat back 2f ... Back frame 3 ... Seat cushion 3f ... Cushion frame 6 ... Reclining device 10 ...・ Slide mechanism 12... Upper rail 12 h... Hole portion 12 u... Upper surface portion 12 x 1. ... Lower surface part 14x1, ... Right side part 14y1, ... Left side part 14x2, ... Right turning surface part 14y2, ... Left turning surface part 16 ... Slide lock device 20 ... Bracket 21 ... First surface part 22 ··· Second surface portion 30 ··· Fixing portion 32 ··· Fastening portion 34 ··· Bolt 36 ··· Nut 40 ··· Fitting portion 42 ··· Pin 44 ····Head 46... First shaft 46 d... First shaft shaft diameter 48... Second shaft 48 d... Second shaft shaft diameter 50... ... Through hole 250 ... Through hole 350 ... Through hole 350d ... Opening width 351 ... First region 352 ... Second region 440 ... Fitting part 421h ... 452 ... Projection F ... Vehicle floor (vehicle component)

Claims (2)

A seat body having a seat cushion and a seat back;
A slide mechanism that is provided between the seat body and a vehicle component such as a floor surface of the vehicle and is installed on the vehicle component such that the seat body is slidable;
A vehicle seat having a bracket disposed above the slide mechanism for fixing the seat body, and a plurality of fixing portions for fixing the slide mechanism and the bracket,
At least one of the plurality of fixing portions is in a state in which separation of the slide mechanism and the bracket is suppressed by inserting one of the slide mechanism and the bracket into the other of the slide mechanism and the bracket. It is a fitting part that fits,
The fitting portion has a pin inserted in advance through a hole formed in one of the slide mechanism and the bracket, and a through hole provided in the other of the slide mechanism and the bracket, The slide mechanism and the bracket are not separated by fitting the pin and the through hole,
The vehicle seat according to claim 1, wherein the through hole has a structure cut out in a slit shape only in a width direction in a direction intersecting a longitudinal direction of the slide mechanism from an end portion of the bracket. The vehicle seat according to claim 1,
A plurality of the fixing parts are arranged in the longitudinal direction of the slide mechanism, and the fitting parts in the plurality of fixing parts are arranged closer to the center side in the longitudinal direction of the sliding mechanism than the other fixing parts. A vehicle seat characterized by that.

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