JP4316967B2 - Cover mounting structure for connecting part of vehicle seat - Google Patents

Description

  The present invention relates to a structure of a mounting portion of a cover that is attached to prevent a hand from touching a metal part end portion of a connecting portion of a vehicle seat and to improve appearance.

  As shown in FIG. 8A, a pipe frame 51 and a bracket 52 are provided in the cushion 50a of the vehicle seat shown in FIG. 7, and the bracket 52 is arranged in the width direction of the pipe frame 51. It arrange | positions along the front-back direction in both sides. A back frame 53 is provided inside the seat back 50 b, and a lower portion of the back frame 53 is connected to the bracket 52.

  Further, as shown in FIG. 8B, a hole 55 is provided on the side surface of the bracket 52 and a convex portion 56 is provided on the side surface of the resin cover 54, and the convex portion 56 is inserted into the hole 55. Thus, the resin cover 54 is fitted into the bracket 52 from the outside of the side surface of the vehicle seat.

  FIG. 7 shows a state of a finished vehicle seat. The resin cover 54 is provided to prevent a passenger's hand from coming into contact with the bracket 52 and to improve the appearance. Since the external appearance of the bracket 52 is visually recognized from the gap between the resin cover 54 and the seat cushion 50a, the plating treatment is performed to improve the appearance.

As another example, for example, as disclosed in Patent Document 1, in order to improve the appearance of the cutout portion of the connecting portion of the upper knuckle and the lower knuckle, the connecting portion of both knuckles is elastic. There is a technique for covering a bag-like cover member.
Japanese Utility Model Publication 3-87336

  However, in the case of the above-described configuration, it is necessary to perform a plating process on the bracket 52 in addition to attaching the resin cover 54 to the bracket 52, leading to an increase in cost. Further, since the resin cover 54 is attached by fitting the hole 55 provided in the bracket 52 and the convex portion 56 provided in the resin cover 54 from the outside of the side surface of the vehicle seat, the assembling workability is poor, and the resin cover 54 falls off. There was also a possibility to do.

  The present invention has been made in view of such circumstances, and its purpose is to improve the appearance only by mounting the resin cover without plating the bracket, and further, mounting the resin cover. Provided is a cover mounting structure for a connecting portion of a vehicle seat that can be easily performed and does not drop a resin cover.

The present invention is provided with side brackets extending in the front-rear direction on both sides in the width direction of the cushion frame inside the seat cushion, and provided with a connecting portion for connecting the back frame inside the seat back to the rear portion of the side bracket, in the cover attachment structure of the connecting portion of the vehicle seat mounted respectively cover covering, in order to put the cover from above the connecting portion is formed into a U shape having an opening the cover on the lower side, the cover A plurality of ribs extending from the vertical wall surface portion of the outer vertical wall surface portion toward the inner vertical wall surface portion in the longitudinal direction of the cover from the upper end to the lower end of the outer vertical wall surface portion. spaced to sandwich the side brackets in the with the rib inner vertical wall portion, and further protrudes at the bottom of the ribs towards the inner vertical wall surface portion Main unit is formed, is engaged with the claw portion to the lower surface portion of the side bracket.

The side bracket is formed in a U-shaped cross section having an opening in the outer direction of the seat cushion, and the plurality of ribs are projected from the outer vertical wall surface portion toward the inner vertical wall surface portion with a constant plate thickness, The tab portion has the same thickness as the rib .

The ends of the two vertical wall surface portions of the cover are formed in an arc shape, and a continuous surface portion that is curved so as to extend the upper surface portion of the cover along the arc is formed, and the inner vertical wall surface portion of the cover is formed. A notch is provided at a portion covering the connecting portion, and a notch is provided with a locking projection protruding from the continuous surface portion in the arcuate center direction of the continuous surface portion, at the rear end portion of the side bracket. A protrusion protruding in the opposite direction to the locking protrusion is provided, and the cover is attached to the side bracket by locking the locking protrusion to the protrusion .

  Since the side bracket is covered with a cover having a U-shaped cross section so that the side bracket is not visually recognized from the outside, the side bracket plating process becomes unnecessary. Moreover, since the said cover is covered from the upper side of the side bracket, assembly workability | operativity improves. Furthermore, since the rib is provided, the lateral position of the cover can be regulated.

Since the claw portion is provided at the tip of the rib, the claw portion is caught by the side bracket, the cover can be aligned, and the cover can be prevented from falling off.
Also, because the cover is provided with a locking protrusion and the side bracket is provided with a protrusion to lock the cover, even if the inner vertical wall surface of the cover is notched and cannot be made into a U-shaped cross section, Can be installed so that it does not come off.
Further, since the rib is provided on the outer vertical wall surface portion having no notch like the inner vertical wall surface, the position of the rib can be freely determined.

  Hereinafter, the best mode for carrying out the present invention will be described in detail with reference to FIGS. Note that the side bracket 2 and the resin cover 7 described in the present embodiment have symmetrical shapes.

  As shown in FIG. 1, a cushion frame 1 provided in a seat cushion includes a side bracket 2 provided on both left and right side portions in the width direction, and the left and right side brackets 2 connected at a front side portion of the cushion frame 1. And a rear pipe 4 in which the left and right side brackets 2 are connected to each other at an intermediate portion in the front-rear direction of the cushion frame 1.

  The left and right side brackets 2 are processed by press molding and have different shapes. The side bracket 2 extends over the entire length of the cushion frame 1 in the front-rear direction, and the rear portion of the side bracket 2 is gently bent as a whole so as to face the obliquely rear upper side of the cushion frame 1. The rear portion of the side bracket 2 is a connecting portion 11 to which a seat back (see FIG. 8) is connected. The connecting portion 11 is provided with a connecting hole 12 through which a rotation shaft (not shown) of the seat back is inserted. It has been.

The side bracket 2 has a U-shaped cross section having an opening in the outer direction of the cushion frame 1 when cut in a plane perpendicular to the longitudinal direction. This U-shaped cross section is formed by a vertical wall surface portion 2a extending in the vertical direction, an upper surface portion 2b, and a lower surface portion 2c.
In addition, a vertical wall surface portion 2a is formed in an arc shape at the rear end portion of the side bracket 2, and a continuous surface portion 2d that is curved so as to connect the upper surface portion 2b and the lower surface portion 2c along the arc is formed. Has been.

  As shown in FIG. 2, the continuous surface portion 2d is provided with a protrusion 5 in consideration of press formability in single-piece processing. This protrusion 5 is provided in the outer part of the cushion frame 1 of the continuous surface part 2d, and protrudes in the same direction as the side bracket 2 is bent diagonally rearward and upward.

  Both the front pipe 3 and the rear pipe 4 are fixed by welding by inserting both ends into a hole 6 provided in the vertical wall surface portion 2a, and the end portions of the front pipe 3 and the rear pipe 4 are connected to the upper surface portion 2b and the lower surface portion 2c. It is comprised so that it may become a position which does not protrude from the covered U-shaped inner side.

  Resin covers 7 as shown in FIG. 3 are respectively attached to the rear portions of the left and right side brackets 2, and the resin covers 7 are inserted from above the side brackets 2. Moreover, the resin cover 7 is bent as a whole with the rear portion obliquely rearward and upward, like the side bracket 2.

In a portion other than the rear portion of the resin cover 7, a cross section when cut in a plane perpendicular to the longitudinal direction is formed in a U-shaped cross section having an opening in the lower direction. The U-shaped cross section is formed by an inner vertical wall surface portion 7a, an outer vertical wall surface portion 7b, and an upper surface portion 7c that extend in the vertical direction.
In addition, an outer vertical wall surface portion 7a is formed in an arc shape at the rear end portion of the resin cover 7, and a continuous surface portion 7d that is curved so as to extend the upper surface portion 7c along the arc is provided. It has been.
Further, a notch portion 7e formed by notching the inner vertical wall surface portion 7b is provided at the rear portion of the resin cover 7, so that it does not interfere with a rotating shaft (not shown) attached to the rear portion of the side bracket 2. .

  A plurality of ribs 8 are provided in the inside of the U-shaped cross section of the resin cover 7 at intervals in the longitudinal direction. The rib 8 protrudes from the outer vertical wall surface portion 7b toward the inner vertical wall surface portion 7a with a constant plate thickness, and is provided from the upper end to the lower end of the outer vertical wall surface portion 7b. Further, as shown in FIG. 4, a claw portion 9 having the same thickness as the rib 8 and protruding toward the inner vertical wall surface portion 7a is formed at the lower portion of the rib 8. The claw portion 9 is locked to the lower surface portion 2 c of the side bracket 2.

  On the inner side of the arc of the continuous surface portion 7d of the resin cover 7, a locking projection 10 that protrudes in the inner direction of the arc is formed. The locking projections 10 are provided so as to be locked with the projections 5 of the side bracket 2. By locking the locking projections 10 and the projections 5, the side bracket 2 and the resin are also formed at the notch portion 7 e. The cover 7 can be locked so as not to drop off.

  FIG. 6 shows a part of the manufacturing process of the side bracket 2. The side bracket 2 is formed by press working, and when the side bracket 2 is punched, a connection plate 13 extending left and right is provided using an excess portion of the sheet metal. In FIG. 6, the connection plate 13 is provided up and down, and a plurality of side brackets 2 are formed with the longitudinal direction thereof directed up and down. Each side bracket 2 is connected to the connection plate 13 by a connection piece 14 at the upper end and the lower end, and the side bracket 2 is obtained by cutting the connection piece 14.

  In this manufacturing process, by cutting the connection piece 14 on the lower side of the side bracket 2 (the rear end portion of the side bracket 2) at the end portion of the side bracket 2 as it is, the protrusion of the side bracket 2 described above is cut. 5 is used.

  In the cover mounting structure of the connecting portion of the vehicle seat according to the embodiment of the present invention, the side bracket 2 is covered with the resin cover 7 having a U-shaped cross section, so that the plating treatment on the side bracket becomes unnecessary. The assembling workability of the resin cover 7 is improved and the resin cover 7 is prevented from falling off.

  Further, since the portion provided with the notch 7e of the resin cover 7 cannot be formed in a U-shaped cross section, the locking projection 10 is provided on the resin cover 7 and the projection 5 is provided at a position corresponding to the locking projection 10 on the side bracket 2. As a result, the portions of the resin cover 7 where the ribs 8 are not provided can be prevented from falling off and coming off.

It is a perspective view which shows the cushion frame which provided the cover attachment structure of the connection part of the vehicle seat which concerns on the best form for implementing this invention. FIG. 2 is an enlarged perspective view illustrating a cover mounting structure for a connecting portion of a vehicle seat according to the best mode for carrying out the present invention, and showing an A portion in FIG. 1. It is a perspective view which shows the resin cover used for the cover attachment structure of the connection part of the vehicle seat which concerns on the best form for implementing this invention. FIG. 4 is an enlarged cross-sectional view of a resin cover used in a cover mounting structure for a connecting portion of a vehicle seat according to the best mode for carrying out the present invention, and showing a portion B of FIG. 3. It is a cover attachment structure of the connection part of the vehicle seat which concerns on the best form for implementing this invention, Comprising: It is a perspective view which shows the state which attaches a resin cover. It is the schematic which shows a part of manufacturing process of the side bracket used for the cover attachment structure of the connection part of the vehicle seat which concerns on the best form for implementing this invention. It is a perspective view which shows the state of the finished product of the vehicle seat provided with the cover attachment structure of the connection part of the conventional vehicle seat. FIG. 2 is a conventional cover mounting structure for a connecting portion of a vehicle seat, wherein (a) is a perspective view showing the entire cushion frame, and (b) is an enlarged perspective view showing a mounting portion between a cover and a bracket.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Cushion frame 2 Side bracket 2a Vertical wall part 2b Upper surface part 2c Lower surface part 2d Continuous surface part 3 Front pipe 4 Rear pipe 5 Projection 6 Hole part 7 Resin cover 7a Inner vertical wall surface part 7b Outer vertical wall surface part 7c Upper surface part 7d Continuous surface part 7e Notch Part 8 Rib 9 Claw part 10 Locking projection 11 Connection part 12 Connection hole 13 Connection plate 14 Connection piece 50a Seat cushion 50b Seat back 51 Pipe frame 52 Bracket 53 Back frame 54 Resin cover 55 Hole 56 Projection

Claims (3)

Side brackets extending in the front-rear direction are provided on both sides in the width direction of the cushion frame inside the seat cushion, and a connecting portion for connecting the back frame inside the seat back is provided at the rear portion of the side bracket, and a cover covering the connecting portion is provided. in the cover attachment structure of the connecting portion of the attached vehicle seat,
In order to cover the cover from above the connecting portion, the cover is formed in a U-shaped cross section having an opening on the lower side, and the vertical wall surface of the outer vertical wall surface portion of the two vertical wall surfaces facing the cover A plurality of ribs extending from the upper portion toward the inner vertical wall surface portion are provided at intervals in the longitudinal direction of the cover from the upper end to the lower end of the outer vertical wall surface portion , and the side bracket is formed between the rib and the inner vertical wall surface portion. And a hook portion protruding toward the inner vertical wall surface portion is formed at the lower portion of the rib, and the hook portion is locked to the lower surface portion of the side bracket. Cover attachment structure of the connecting part. The side bracket is formed in a U-shaped cross section having an opening in the outer direction of the seat cushion, and the plurality of ribs are projected from the outer vertical wall surface portion toward the inner vertical wall surface portion with a constant plate thickness, 2. The cover mounting structure for a connecting portion of a vehicle seat according to claim 1, wherein the tab portion has the same thickness as that of the rib . The ends of the two vertical wall surface portions of the cover are formed in an arc shape, and a continuous surface portion that is curved so as to extend the upper surface portion of the cover along the arc is formed, and the inner vertical wall surface portion of the cover is formed. A notch is provided at a portion covering the connecting portion, and a notch is provided with a locking projection protruding from the continuous surface portion in the arcuate center direction of the continuous surface portion, at the rear end portion of the side bracket. the projection projecting in the locking projection opposite direction is provided, by locking the locking protrusion protrusion according to claim 1 or 2, characterized in that attached to the cover on the side bracket Cover attachment structure for connecting part of vehicle seat.

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