JP2008143423A - Hinge cover structure of vehicular seat device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a hinge cover structure of a vehicular seat device capable of enlarging the folding-up angle of a seat, without deteriorating an exterior appearance. <P>SOLUTION: A hinge cover 32 is vertically rotatably supported around a support part 34 arranged between the hinge cover and a seat side hinge member 16, and abuts on a floor side hinge member 17 when the seat side hinge member 16 rotates by a predetermined angle α in the folding-up direction, and rotates upward around the support part 34 when the seat side hinge member 16 turns to a folding-up position B. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

  The present invention relates to a vehicle seat device in which a seat on which an occupant is seated is supported by a hinge mechanism so as to be rotatable between a seating position and a folding position where the occupant is substantially upright, and specifically covers the hinge mechanism. The present invention relates to the structure of the arranged hinge cover.

  In this type of seat device, in order to share the floor forming the passenger compartment with the passenger compartment and the cargo compartment, for example, as shown in FIGS. 9 and 10, a floor side hinge member 51 fixed to the floor member 50 is used. And a seat side hinge member 53 fixed to the front end portion of the seat 52 are connected by a hinge shaft 54, and the seat 52 is rotated between a seating position and a folding position where the seat 52 is substantially raised forward about the hinge shaft 54. May be movable.

In order to prevent the appearance of the hinge members 51 and 53 from being deteriorated, for example, the left and right side surfaces of the seat side hinge member 53 and the front side portion of the hinge shaft 54 are covered with a hinge cover 55 and the hinge cover 55 is covered. May be fixed to the seat side hinge member 53 (see, for example, Patent Document 1). In this case, the front wall 55a of the hinge cover 55 is extended as much as possible below the hinge shaft 54 to enhance the appearance.
JP 2001-233097 A

  By the way, when the front wall 55a of the hinge cover 55 is extended downward, the lower edge 55b of the hinge cover 55 hits the floor side hinge member 51 when the seat 52 is folded, so that the folding angle α of the seat 52 can be increased. Can not. For this reason, it is necessary to extend the rear fixing portion 51a to the rear side of the floor side hinge member 51. This causes a problem that the appearance of the rear fixing portion 51a is deteriorated and the cargo space is reduced.

  That is, in order to fix the rear fixing portion 51a of the floor-side hinge member 51 to the floor member 50, the bolt 56 is tightened from above a with the seat 52 folded. In this case, in order to secure a working space for the tool without interfering with the seat 52, it is necessary to extend the rear fixing portion 51a rearward. Here, in order to secure a work space without extending the rear fixing portion, it is conceivable to tighten the bolt 56 obliquely downward a ′ from the rear. However, if it does in this way, it will also be necessary to make the mounting seat of a floor member back diagonally upward, and a floor shape must be changed and it is difficult in cost.

  The present invention has been made in view of the above-described conventional situation, and an object of the present invention is to provide a hinge cover structure for a vehicle seat device that can increase the folding angle of a seat without deteriorating the appearance.

According to the first aspect of the present invention, there is provided a floor side hinge member fixed to the floor member, a seat on which an occupant is seated, a seat side hinge member fixed to the seat and connected to the floor side hinge member via a hinge shaft. And at least a hinge of the seat-side hinge member and the floor-side hinge member of a vehicle seat device capable of rotating the seat between a seating position and a substantially raised position about the hinge axis. It is a hinge cover structure that covers the periphery of the shaft with a hinge cover,
The hinge cover is rotatably supported by the seat-side hinge member, contacts the floor-side hinge member when the seat is rotated by a predetermined angle in the folding direction, and the seat is rotated to the folding position. Until the seat side hinge member is rotated.

  According to a second aspect of the present invention, in the first aspect, the folding position is set such that the bottom surface of the seat is located on the side opposite to the seating position from a vertical line passing through the center of the hinge shaft, and the floor side hinge member is At least the vicinity of the seating position side of the vertical line is fixed to the floor member by a bolt inserted from above.

  According to the first aspect of the present invention, the hinge cover is brought into contact with the floor side hinge member when the seat is rotated by a predetermined angle, and is rotated relative to the seat side hinge member until the seat is further rotated to the folding position. Therefore, the folding angle of the seat can be made larger than the angle at which the hinge cover comes into contact with the floor side hinge member while covering the hinge shaft to the lower side of the hinge shaft. Thereby, the indoor protrusion of the rear fixing portion of the floor side hinge member can be reduced without causing deterioration in appearance due to exposure around the hinge axis, and problems such as deterioration in appearance and reduction of the cargo space can be solved.

  In the invention according to claim 2, the folding position of the seat is set on the side opposite to the seating position from the vertical line passing through the center of the hinge shaft, and the vicinity of the seating position side of the vertical line of the floor side hinge member is set to the floor by the bolt inserted from above. Since it is fixed to the member, the bolt can be positioned in the vicinity of the hinge shaft while securing the work space of the tool, and the protrusion of the floor side hinge member into the room can be further reduced.

  Hereinafter, embodiments of the present invention will be described with reference to the accompanying drawings.

  1 to 8 are views for explaining a hinge cover structure of a vehicle seat device according to an embodiment of the present invention. FIG. 1 is a side view of the seat device, and FIG. 2 is a side view of the hinge mechanism. 3 is an exploded perspective view of the hinge mechanism and the hinge cover, FIG. 4 is a schematic view of the seat in the folded position, FIG. 5 is a side view of the hinge cover, and FIG. 6 is a front view of the hinge cover (see arrow VI in FIG. 5). 7 and 8 are cross-sectional views of the hinge cover (a cross-sectional view taken along the line VII-VII in FIG. 5 and a cross-sectional view taken along the line VIII-VIII in FIG. 5. In the description of this embodiment, It means front, back, left and right when viewed while seated on a seat.

  In the figure, reference numeral 1 denotes a seat device mounted on a floor member 4 forming a passenger compartment of an automobile. The seat device 1 includes a seat 2 on which an occupant is seated, a hinge mechanism 7 that rotatably supports the seat 2 between a seating position A and a folding position B where the seat 2 stands substantially in front of the vehicle, and the seat 2 And a lock member 6 that is releasably locked to a gate-shaped striker 5 fixed to the floor member 4.

  The floor member 4 includes a substantially flat rear floor portion 4a on which the seat 2 is disposed, a stepped portion 4b that is formed to be inclined downward from the front edge of the rear floor portion 4a, and the stepped portion 4b. And a front floor portion 4c extending substantially flat forward from the lower edge, and a front seat (not shown) is mounted on the front floor portion 4c.

  The seat 2 includes a seat cushion 8 that supports the occupant's buttocks and a seat back 9 that supports the back. The seat back 9 is supported via a hinge plate 10 so as to be rotatable between the seating position A and a forward position C contacting the upper surface of the seat cushion 8.

  The seat cushion 8 is supported by the seat rail 3 so as to be slidable in the vehicle front-rear direction via a slide rail (not shown). The seat rail 3 includes a front pipe 3b that extends in the vehicle width direction, a horizontal pipe 3c that bends and extends rearward after the front pipe 3b, and a bracket 3d that is fixed to the rear end of the horizontal pipe 3c. Have.

  The hinge mechanism 7 is fixed to the front pipe 3b, and the lock member 6 is fixed to the bracket 3d. Reference numeral 13 denotes a resin cover 13 that covers the seat rail 3 and the lock member 6 on the lower surface of the seat cushion 8.

  The hinge mechanism 7 includes a pair of left and right floor side hinge members 17, 17 fixed to the floor member 4 and a pair of left and right seat side hinge members 16 fixed to the front pipe 3 c of the seat rail 3. , 16 and hinge shafts 18, 18 that rotatably connect the hinge members 16, 17 to each other.

  Coil springs 19 and 19 for urging the seat cushion 8 in the folding direction are mounted on the left and right hinge shafts 18. Thus, the seat cushion 8 is supported by the seat-side hinge member 16 so as to be rotatable between the seating position A and the folding position B about the hinge shaft 18.

  The floor-side hinge member 17 includes a generally rectangular base portion 17a formed along the stepped portion 4b from the front edge portion of the rear floor portion 4a of the floor member 4, and the left and right sides of the base portion 17a. It has a structure in which left and right flange portions 17b and 17b extending upward from the edge, and left and right hinge portions 17c and 17c extending obliquely upward in front of the left and right flange portions 17b are integrally formed. Yes.

  The base portion 17a has a front fixing portion 17d fixed to the stepped portion 4b by a front bolt 20 and a rear fixing portion 17e fixed to the front edge portion of the rear floor portion 4a by a rear bolt 21.

  Stopper portions 17f and 17f for restricting the rotation angle of the seat cushion 8 to the folding position B are formed on the front surface of the left and right hinge portions 17c so as to rotate the seat cushion 8 to the folding position. If it does, it will contact | abut to the hook parts 16d and 16d mentioned later of the seat side hinge member 16. FIG.

  The seat-side hinge member 16 has a U-shape with a cross-section that faces downward, and extends in the front-rear direction. The seat-side hinge member 16 includes an upper wall portion 16a, left and right side wall portions 16b and 16b bent downward from left and right edges of the upper wall portion 16a, and front ends of the left and right side wall portions 16b. The left and right hinge portions 16c and 16c extend forward.

  The rear end portions of the left and right wall portions 16b are fixed to the front pipe 3b by welding, and the upper wall portion 16a and the front portions of the left and right wall portions 16b are formed to be bent obliquely upward in the front direction.

  The left and right hinge portions 16c and 16c of the seat side hinge member 16 are disposed so as to contact the left and right hinge portions 17c and 17c of the floor side hinge member 17, and the hinge portions 16c and 17c are connected to each other. Are pivotally connected by the hinge shaft 18.

  A front end surface 16d of the upper wall portion 16a of the seat-side hinge member 16 is in contact with the stopper portion 17f so as to hold the seat cushion 8 in the folded position B.

  The folding position B of the seat 2 is set so that the bottom surface 8a of the seat cushion 8 is positioned in front of the vehicle with respect to a vertical line D passing through the center of the hinge shaft 18. Specifically, the lower surface 6a of the lock member 6 is in a forward-tilted state so as to be positioned in front of the vertical line D.

  The rear fixing portion 17e of the floor side hinge member 17 is set near the rear side of the vertical line D, and the rear bolt 21 is inserted from above so as to be substantially parallel to the vertical line D.

  A resin-made floor-side hinge cover 31 is attached to the floor-side hinge member 17, and a resin-made seat-side hinge cover 32 is also attached to the seat-side hinge member 16.

  The floor-side hinge cover 31 includes a front cover portion 31b that covers the left and right front surfaces of the floor-side hinge member 17 and the left and right outer surfaces, and a rear cover portion 31a that covers the back surface of the floor-side hinge member 17. The front and rear cover portions 31 a and 31 b are detachably fixed to the floor side hinge member 17.

  The seat side hinge cover 32 is formed in a substantially semi-cylindrical shape, and the left and right cover portions 32a covering the left and right hinge portions 16c of the floor side hinge member 16 and the left and right hinges 16c. And a substantially arc-shaped front cover portion 32 b extending so as to cover the front side of the hinge shaft 18.

  Reinforcing ribs 32c and 32c extending in the front-rear direction are formed at the center in the vertical direction of the inner surface of the left and right cover portions 32a of the seat-side hinge cover 32. Reinforcing ribs 32d and lateral ribs 32e extending along the front cover portion 32b are formed at the center in the vehicle width direction of the inner surface of the front cover portion 32b.

  Left and right slits 32f and 32f into which the left and right hinge portions 17c of the floor side hinge member 17 can enter are cut out at the lower edge portion of the front cover portion 32b. When the hinge cover 32 is rotated together with the seat-side hinge member 16 in the folding direction, the left and right hinge portions 17c enter the left and right slits 32f, and the front edge 32f 'of the slit 32f contacts the hinge portion 17c. It comes to touch.

  Between the hinge cover 32 and the seat side hinge member 16, a support portion 34 that rotatably supports the hinge cover 32 is provided. The support portion 34 is disposed obliquely below the hinge shaft 18 when viewed from the side of the vehicle.

  More specifically, the support portion 34 is disposed on the opposite side of the front edge 32f ′ that contacts the left and right hinge portions 17c of the floor side hinge member 17 with the hinge shaft 18 interposed therebetween. Therefore, when the hinge cover 32 rotates together with the seat-side hinge member 16, the hinge cover 32 rotates about the hinge shaft 18, and when the hinge cover 32 rotates alone, the support portion 34 separated from the hinge shaft 18 is moved. It will turn to the center. Accordingly, regarding the rotation angle of the front edge 32f ', the rotation angle when rotating about the support portion 34 is significantly smaller than the rotation angle when rotating about the hinge shaft 18. ing.

  The support portion 34 has cylindrical boss portions 32g and 32g formed inwardly projecting from the inner surfaces of the left and right cover portions 32a of the hinge cover 32, and the left and right side wall portions 16b of the seat side hinge member 16. It has a structure inserted into the holes 16j, 16j formed in. Here, as a structure of the support portion 34, a convex portion is formed on the seat side hinge member 16, and a boss portion of the hinge cover is attached to the convex portion, or the convex portion is inserted into a hole formed in the hinge cover. It is also possible to do.

  In order to assemble the seat 2 to the floor member 4, the hinge mechanism 7 is assembled to the seat cushion 8 in advance, and the seat side hinge cover 32 is attached to the hinge mechanism 7. In this case, the left and right boss portions 32g are inserted into the holes 16j of the seat side hinge member 16 with the left and right cover portions 32a and 32a of the hinge cover 32 elastically deformed outward.

  Then, in a state where the seat 2 is temporarily held at the seating position A, the front bolt 20 is screwed to the front fixing portion 17d of the floor side hinge member 17 from the diagonally upper front side with the tool T, and the front fixing portion 17d is connected to the stepped portion 4b. Secure to. Next, the seat 2 is rotated to the folding position B, and the rear bolt 20 is screwed onto the rear fixing 17e from above with the tool T, and the rear fixing portion 17e is fixed to the rear floor portion 4a. Thereafter, the floor side hinge cover 31 is attached to the floor side hinge member 17.

  That is, since the seat side hinge cover 32 is disposed between the lower surface of the seat cushion 8 and the seat side hinge member 16, it is necessary to attach the seat cushion 8 to the seat side hinge member 16 before attaching the seat cushion 8 to the seat rail 3. is there. For this reason, the seat 2 is attached to the floor member 4 with the hinge cover 32 attached.

  In this case, in the conventional apparatus, as shown in FIGS. 9 and 10, when the seat cushion is rotated in the folding direction, the front edge of the slit 55b of the hinge cover 55 hits the floor side hinge member 51 to increase the folding angle α. There was a problem that I could not.

  On the other hand, in the present embodiment, as shown in FIG. 5, when the seat cushion 8 is rotated by an angle α in the folding direction, the seat side hinge cover 32 is centered on the hinge shaft 18 together with the seat side hinge member 16. And the front edge 32f 'of the slit 32f of the seat side hinge cover 32 comes into contact with the floor side hinge member 17 (see reference numeral 32'). When the seat cushion 8 is further rotated by the angle α1 to the folding position B, the seat-side hinge cover 32 rotates relative to the seat-side hinge member 16 around the boss portion 32g ″. (See reference numeral 32 ″). Thus, the folding angle of the seat cushion 8 can be increased by α1 from the conventional angle α.

  On the other hand, during normal use, the locking portion 6 of the seat 2 is engaged with the striker 5 and the seat 2 is locked at the seating position A. When the seat 2 is folded and used as a luggage compartment, the seat back 9 is brought down to the forward position C, the lock member 6 is unlocked, the seat cushion 8 is raised, and the folding position B is turned. As the seat cushion 8 rotates, the hinge cover 32 abuts against the floor-side hinge member 17 and rotates forward about the boss portion 32f.

  When the seat cushion 8 is returned to the seating position A, the hinge cover 32 rotates downward under its own weight. Here, as shown in FIG. 1, a leaf spring 35 that always presses the hinge cover 32 downward may be attached to the seat-side hinge member 16. In this case, it is possible to prevent the hinge cover 32 from flapping. It is also possible to press the hinge cover 32 downward using the repulsive force of the seat pad of the seat cushion 8.

  Thus, according to the present embodiment, the seat side hinge cover 32 is rotatably supported by the seat side hinge member 16, and the support portion 34 is centered when the seat side hinge member 16 is rotated to the folding position B. Therefore, the folding angle of the seat cushion 8 can be increased by α1 from the angle α at which the hinge cover 32 abuts against the floor side hinge member 17 while the hinge cover 32 covers the hinge shaft 18 below the hinge shaft 18. it can. Thereby, the protrusion to the rear of the rear fixing portion 17e of the floor side hinge member 17 can be reduced without causing deterioration of the appearance due to exposure around the hinge shaft 18, and the problem of deterioration of appearance and reduction of the cargo space can be achieved. Can be eliminated.

  Here, before the hinge cover 32 can be rotated, the support portion 34 is located at a position away from the hinge shaft 18 and before the abutment with the floor side hinge member 17 of the hinge cover 32 with the hinge shaft 18 interposed therebetween. Since it is set on the opposite side of the edge 32f ', the angle at which the hinge cover 32 should be rotated corresponding to the above-described rotation angle α1 of the seat cushion 8 can be reduced, and the arrangement of the hinge cover 32 becomes easy. If the support portion 34 of the hinge cover 32 is arranged in the vicinity of the hinge shaft 18 or coaxially, the upper edge of the hinge cover 32 easily interferes with the seat-side hinge member, and the upper edge portion is cut off. There are concerns about problems such as the need to increase the gap.

  In the present embodiment, the folding position B of the seat cushion 8 is set so as to be positioned in front of the vehicle with respect to the vertical line D passing through the center of the hinge shaft 18, and the rear fixing portion 17 e of the floor side hinge member 17 is near the rear of the vertical line D. Since the rear bolt 21 is fixed to the floor member 4 by the rear bolt 21 inserted from above, the rear bolt 21 can be positioned in the vicinity of the vertical line D while securing the work space of the tool T, and the floor side hinge member 17 is moved into the room. Can be further reduced. Further, since the folding position B of the seat 2 is set in front of the vehicle with respect to the vertical line D, the space in the front-rear direction of the luggage compartment can be increased.

  In the above embodiment, the case where the seat 2 is folded forward around the front edge portion of the seat 2 has been described as an example, but the present invention can be folded rearward around the rear edge portion of the seat, or The present invention can also be applied to the case where the seat is folded in the vehicle width direction around the side edge portion of the seat.

It is a side view for demonstrating the hinge cover structure of the vehicle seat apparatus by one Embodiment of this invention. It is a side view of the hinge mechanism of the said sheet apparatus. It is a disassembled perspective view of the said hinge mechanism and a hinge cover. It is the schematic of the sheet | seat of the folding position of the said sheet | seat apparatus. It is a side view of the said hinge cover. FIG. 6 is a front view of the hinge cover (indicated by an arrow VI in FIG. 5). It is sectional drawing (VII-VII sectional view taken on the line of FIG. 5) of the said hinge cover. It is sectional drawing (the VIII-VIII sectional view taken on the line of FIG. 5) of the said hinge cover. It is the schematic of the conventional sheet | seat apparatus. It is the schematic of the conventional sheet | seat apparatus.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Seat apparatus 2 Seat 4 Floor member 8 Seat cushion 8a Bottom surface 16 Seat side hinge member 17 Floor side hinge member 17e Rear fixing part 21 Rear bolt 18 Hinge shaft 32 Hinge cover 34 Support part A Seating position B Folding position D Vertical line

Claims (2)

A floor-side hinge member fixed to the floor member; a seat on which an occupant is seated; and a seat-side hinge member fixed to the seat and connected to the floor-side hinge member via a hinge shaft. Covering at least the hinge axis of the seat-side hinge member and the floor-side hinge member with a hinge cover of the vehicle seat device that is pivotable between a seating position and a folding position that is substantially upright about the hinge axis And a hinge cover structure
The hinge cover is rotatably supported by the seat-side hinge member, contacts the floor-side hinge member when the seat is rotated by a predetermined angle in the folding direction, and the seat is rotated to the folding position. A hinge cover structure for a vehicle seat device, wherein the hinge cover structure is rotated relative to the seat-side hinge member. 2. The folding position according to claim 1, wherein the folding position is set so that a bottom surface of the seat is located on a side opposite to a seating position from a vertical line passing through a center of the hinge shaft, and the floor-side hinge member is at least a seating position of the vertical line. A hinge cover structure for a vehicle seat device, wherein a side vicinity portion is fixed to the floor member by a bolt inserted from above.

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