JP2020172140A - Vehicle seat - Google Patents

Abstract

To provide a vehicle seat which enables a rear part of a side shield to be arranged at a seat frame providing good performance with a relatively simple structure.SOLUTION: A rear part of a side shield (20) comprises: an extension part (31) which is formed by extending a part of a flange part (22), which is disposed so as to enclose a rear part of a seat frame (10), to a seat inner side; a protruding part (40) protruding from the rear side of the extension part (31); and an engagement part (50) integrally formed with the protruding part (40). An engagement protruding part (16) being provided at the rear part of the seat frame (10) and protruding in a seat width direction engages with the engagement part (50) to cause the rear part of the side shield (20) to be disposed assembled to the rear part of the seat frame (10).SELECTED DRAWING: Figure 9

Description

The present invention relates to a vehicle seat in which a seat cushion serving as a seat includes a seat frame and side shields arranged on the side surfaces of the seat frame.

In this type of vehicle seat, a side shield may be provided on the side surface of the seat cushion from the viewpoint of improving the seat performance. For example, the seat cushion of a vehicle seat disclosed in Patent Document 1 has a seat cushion frame corresponding to the seat frame of the present invention and a resin inside shield corresponding to the side shield of the present invention. The seat cushion frame is a metal frame-shaped member that is rectangular when viewed upward, and has a plate-shaped side frame that forms a side skeleton and extends back and forth. The resin inside shield is a resin member and has a main shield body that covers the rear portion of the side shield from the outside of the seat. This main shield body corresponds to the rear part of the side shield of the present invention, and a shield bracket is provided on the back side thereof. This shield bracket is a plate-shaped portion having a fastening hole, and protrudes from the rear end of the main shield body to the inside of the seat. In the known technique, the resin inside shield is arranged on the outer side surface of the seat of the side frame. At this time, the main shield body is arranged at the rear portion of the side frame by screwing the rear end thereof to the rear end side of the side frame via the shield bracket.

Japanese Patent No. 4890350

By the way, in the above-mentioned seat configuration, there is a request that the side shields be arranged on the side surface of the seat frame in an attractive and appropriate manner by the simplest possible configuration. However, in the known technique, when arranging the main shield body (rear part of the side shield), it is necessary to screw the shield bracket and fix it to the side frame, and a fixing member such as a screw is indispensable. Therefore, the configuration of the known technology has not been a configuration that can be easily adopted in consideration of the number of parts of the sheet and workability at the time of arrangement. The present invention was devised in view of the above points, and the problem to be solved by the present invention is to dispose the rear portion of the side shield on the seat frame with good performance by a relatively simple configuration. is there.

As a means for solving the above problems, in the vehicle seat of the first invention, a seat cushion serving as a seat is provided on a seat frame forming a seat skeleton and a side surface of the seat frame in the seat width direction. It has a shield. The rear portion of the side shield has an outer surface portion that covers the rear portion of the seat frame from the outside of the seat, and a flange portion that bends from the edge of the outer surface portion toward the inside of the seat, and is arranged at the rear portion of the seat frame. .. In this type of seat configuration, it is desired that the rear portion of the side shield is arranged on the seat frame with good performance by a relatively simple configuration.

Therefore, the rear portion of the side shield of the present invention includes an extension portion in which a part of the flange portion arranged so as to surround the rear portion of the seat frame is extended inside the seat, a convex portion protruding from the back side of the extension portion, and a convex portion. An engaging portion integrally formed with the portion is provided. The rear portion of the side shield is assembled and arranged at the rear portion of the seat frame by engaging the engaging portion with the engaging convex portion provided at the rear portion of the seat frame and projecting in the seat width direction. .. The side shield of the present invention is provided with an extension portion in which the flange portion is partially extended. Therefore, the extension portion makes it possible to surround the seat frame in a good-looking manner, and it is also possible to appropriately arrange the side shields so as to prevent foreign matter from entering the inside as much as possible. Further, an engaging portion is provided by using the convex portion provided on the extension portion, and this engaging portion is engaged with the engaging convex portion of the seat frame. Therefore, in the present invention, by assembling the rear portion of the side shield to the rear portion of the seat frame by engaging the engaging portion and the engaging convex portion, it is possible to omit fixing members such as screws, and the seat can be omitted. The configuration contributes to the simplification of the configuration.

The vehicle seat of the second invention is the vehicle seat of the first invention, and the flange portion is provided with a first extension portion provided behind the rear portion of the seat frame and a lower portion below the rear portion of the seat frame. A second extension portion is provided, and a convex portion and an engaging portion are provided on at least one of the first extension portion and the second extension portion. In the present invention, since a plurality of extension portions in which the flange portion is partially extended are provided, each of these extension portions makes it possible to appropriately surround the rear portion of the seat frame with a better appearance. Furthermore, by providing a convex portion and an engaging portion on at least one of the first extension portion and the second extension portion, the rear portion of the side shield becomes a seat frame by engaging the engaging portion and the engaging convex portion. It can be assembled.

The vehicle seat of the third invention is the vehicle seat of the second invention, in which the convex portion is provided so as to straddle the first extension portion and the second extension portion and is assembled. It is located inside the seat at the rear of the seat frame. In the present invention, it is possible to avoid external exposure of the seat frame as much as possible by providing the convex portion so as to straddle the plurality of extension portions and arranging the convex portion inside the seat of the seat frame.

The vehicle seat of the fourth invention is any of the vehicle seats of the first to third inventions, and the flange portion is provided with a guide portion for guiding the engaging convex portion to the engaging portion. In the present invention, the guide portion makes it possible to more reliably engage the engaging portion and the engaging convex portion, which contributes to ensuring excellent assembling property of the side shield and improving workability. It has become.

The vehicle seat of the fifth invention is any of the vehicle seats of the first to fourth inventions, and the engaging portion has a tubular portion into which the engaging convex portion is inserted and engaged. .. In the present invention, it is possible to insert the engaging convex portion into the tubular portion of the engaging portion to engage it more stably, which further contributes to ensuring the excellent assembling property of the side shield. ing.

The vehicle seat of the sixth invention is the vehicle seat of the fifth invention, and the engaging portion is an upper side wall portion located above the engaging convex portion in the inserted state and a lower wall surface located opposite to the upper side wall portion. The engaging portion has a portion, and the engaging convex portion is engaged with the engaging portion in a state of being in contact with the upper side wall portion and in a state of being separated from the lower side wall portion. In the present invention, by bringing the engaging convex portion into contact with the upper side wall portion and separating it from the lower side wall portion, the side shield is excellent while ensuring smooth insertion of the engaging convex portion into the engaging portion. It has a structure that contributes to ensuring ease of assembly.

The vehicle seat of the seventh invention is the vehicle seat of any one of the first to sixth inventions, and the seat frame has an outer outer plate portion and a peripheral edge of the outer plate portion bent toward the inside of the seat. It has a peripheral plate portion formed by the invention. Then, in the assembled state, the outer plate portion is arranged facing the outer surface portion, and the peripheral plate portion is surrounded by the convex portion and the engaging portion from the inside of the seat while being applied to the flange portion. There is. In the present invention, since the convex portion and the engaging portion are arranged so as to surround the peripheral plate portion of the seat frame from the inside of the seat, it is possible to more reliably avoid the external exposure of the seat frame. ..

The vehicle seat of the eighth invention is any of the vehicle seats of the first to seventh inventions, and the side shield portion provided with the engaging portion can be bent and deformed in a direction away from the engaging convex portion. is there. In the present invention, the side shield portion provided with the engaging portion can be bent and deformed in the direction away from the engaging convex portion and then returned to the original state, so that the workability at the time of assembling the side shield can be improved. It has a structure that contributes to improvement.

According to the first invention according to the present invention, the rear portion of the side shield can be arranged on the seat frame with good performance by a relatively simple configuration. Further, according to the second invention, the rear portion of the side shield can be appropriately arranged on the seat frame with good appearance. Further, according to the third invention, the rear portion of the side shield can be arranged in a good-looking manner by the seat frame. Further, according to the fourth invention, the rear portion of the side shield can be arranged with good performance by the seat frame. Further, according to the fifth invention, the rear portion of the side shield can be stably arranged by the seat frame. Further, according to the sixth invention, the rear portion of the side shield can be arranged on the seat frame with even better performance. Further, according to the seventh invention, the rear portion of the side shield can be arranged on the seat frame in a more attractive manner. According to the eighth invention, the rear portion of the side shield can be arranged on the seat frame with good performance while more surely improving the workability at the time of arrangement.

It is a perspective view of a vehicle seat. It is an exploded perspective view of a seat cushion. It is a perspective view of the back side of the rear part of a side frame. It is a perspective view of the back side of a side shield. It is an enlarged perspective view which shows the rear part of a side shield partially see-through. It is a back view of the rear part of a side frame. FIG. 6 is a sectional view taken along line VII-VII of FIG. It is a perspective view of a side shield and a side frame at the time of arrangement work. It is a perspective view of the side shield and the side frame after arrangement. It is an enlarged back view which shows the engaging part and the engaging convex part after arrangement. It is a schematic side view of a vehicle seat. It is a rear view of the lower part of a vehicle seat. It is a rear perspective view which shows the vehicle seat partially see-through.

Hereinafter, embodiments for carrying out the present invention will be described with reference to FIGS. 1 to 13. In each figure, for convenience, arrow lines indicating the front-rear direction, the left-right direction, and the up-down direction of the vehicle seat are appropriately illustrated. The vehicle seat 2 of FIG. 1 has a seat cushion 4, a seat back 6, and a headrest 8, and these seat constituent members (4, 6, 8) are placed on the vehicle floor surface via a pair of left and right slide rails 80. It is arranged in. Here, the seat constituent members (4, 6, 8) cover the seat frame (4F, 6F, 8F) forming the seat skeleton, the seat pad (4P, 6P, 8P) forming the outer shape of the seat, and the seat pad, respectively. It has a seat cover (4S, 6S, 8S). Then, the lower part of the seat back 6 is connected to the rear part of the seat cushion 4 (details will be described later) so as to be able to fold down via a reclining RM (details will be described later). A headrest 8 is arranged above the upright seat back 6.

[Recliner]
Here, the reclining RM shown in FIG. 1 is a member that regulates the tilting operation of the seat back 6 with respect to the seat cushion 4. The reclining RM is arranged so as to connect the lower portion of the seat back 6 and the upper rear portion of the seat cushion 4. Then, with reference to FIGS. 1 and 2, an axial rotating member 2r facing in the left-right direction is inserted at the substantially center of the reclining RM in a state of being rotatable around the axis A. An operation lever 70 that serves as a handle during the rotation operation is attached to the end of the rotating member 2r on the outside (right side) of the seat, and is paired with the end of the rotating member 2r on the inside (left side) of the seat. A connecting rod 4r connected to a recliner (not shown) on the left side is attached. Then, by rotating the rotating member 2r with the operating lever 70 as a handle, the reclining RM is unlocked, and the seat back 6 can be tilted with respect to the seat cushion 4. The rotating member 2r is urged in the reverse rotation direction according to the configuration of the reclining RM. Therefore, when the rotation operation by the operation lever 70 is stopped, the rotating member 2r rotates in the reverse direction, the reclining RM is locked, and the tilting operation of the seat back 6 with respect to the seat cushion 4 is restricted.

[Seat cushion]
The seat cushion 4 shown in FIG. 1 is a member having a substantially rectangular shape when viewed upward as a seat portion, and has the above-mentioned basic configurations 4F, 4P, 4S, a pair of left and right side shields 20, 20X, and an operation lever 70. (Details of each member will be described later). In the seat cushion 4, a side shield 20 (20X) corresponding to the right side surface 4a (left side surface 4b) in the seat width direction is arranged, and an operation lever 70 is further arranged at the rear part of the right side surface 4a. Then, in this embodiment, when the side shields 20 and 20X described later are arranged, the rear portions of the side shields 20 and 20X are assembled and arranged on the rear portion of the seat frame 4F. In this type of configuration, there is a demand that the rear portions of the side shields 20 and 20X be arranged on the seat frame 4F with good performance by a relatively simple configuration. Therefore, in this embodiment, the rear portions of the side shields 20 and 20X are arranged on the seat frame 4F with good performance in a relatively simple configuration (engagement convex portion 16, engaging portion 50) described later. did. Hereinafter, each configuration will be described in detail.

[Basic configuration]
Here, referring to FIG. 1, the seat cover 4S is a face material constituting the design surface of the seat, and is a cloth (woven fabric, knitted fabric, non-woven fabric) or leather (natural leather, synthetic leather) made of natural fibers or synthetic fibers. Etc. are formed. The seat pad 4P (not shown) is a member having a substantially rectangular shape when viewed from the top, and is made of a foamed resin such as polyurethane foam (density: 10 kg / m ^{3 to} 60 kg / m ³ ). The seat frame 4F shown in FIG. 2 is a metal frame that is substantially rectangular in upward view forming the seat skeleton, and its left and right side skeletons are composed of a pair of side frames 10 (in FIG. 2, for convenience, for convenience). Only the right side frame 10 is shown). A front frame 11 forming a front skeleton is fixed to the front end side of each side frame 10, and a rear frame 12 forming a rear skeleton is hung and fixed to the rear side of each side frame 10.

[Side frame]
Here, since the pair of left and right side frames 10 have substantially the same basic configuration, the details thereof will be described below by taking the right side frame 10 as an example. The right side frame 10 shown in FIGS. 2 and 3 is a plate-shaped member that is long in the front-rear direction, and its rear portion is raised in a mountain shape toward the upper side. The right side frame 10 has an outer plate portion 10a forming an outer shape, a peripheral plate portion 10b provided on the peripheral edge of the outer plate portion 10a, a pair of front and rear locking holes 13a and 13b, and an engaging convex portion described later. It has 16. Here, the outer plate portion 10a is a vertical plate-like portion forming the side surface shape of the right side frame 10, and the arrangement hole 10H for fixing a part of the reclining RM is on the upper side of the raised rear portion. Is provided so as to penetrate in the thickness direction. The peripheral plate portion 10b is a portion formed by bending the peripheral edge of the outer plate portion 10a to the left side inside the sheet, and is continuously formed over substantially the entire circumference of the outer plate portion 10a. Further, the locking holes 13a and 13b shown in FIG. 2 are through holes penetrating the right side frame 10 in the thickness direction, and the corresponding locking claws 25a and 25b of the side shield 20 described later are inserted, respectively. It can be locked. The front locking hole 13a is provided on the front end side of the side frame 10, and the rear locking hole 13b is provided at a substantially intermediate position between the front locking hole 13a and the rear portion of the side frame 10.

[Engagement convex part]
The engaging convex portion 16 shown in FIGS. 2 and 3 is a portion that engages with the engaging portion 50 (cylindrical portion 58) of the right side shield 20 described later. The engaging convex portion 16 is provided on the lower side of the rear end of the right side frame 10 and projects in the seat width direction. That is, as shown in FIG. 3, the engaging convex portion 16 is formed by partially extending the peripheral plate portion 10b on the lower side of the rear end, and is on the left side as compared with the other peripheral plate portions 10b around it. It protrudes into. The engaging convex portion 16 is formed in a rectangular plate shape that is long to the left and right when viewed from the front, and has an upper upper edge portion 16a, a lower lower edge portion 16b, and a left tip edge. It has a part 16c. The left and right length dimensions L1 of the engaging convex portion 16 are not particularly limited as long as they can be engaged with the engaging portion 50 of FIG. 2, which will be described later, but in this embodiment, the design of the sheet is taken into consideration. The dimensions are set so that they do not protrude from the engaging portion 50, which will be described later.

[Side shield]
The pair of left and right side shields 20, 20X shown in FIG. 1 are members that cover the outer surface of the corresponding side frame 10. Here, as the material of each of the side shields 20 and 20X, a material such as a resin (including an elastomer) or a metal having an appropriate rigidity can be exemplified, and it is desirable that the material has an appropriate flexibility. For example, each of the side shields 20 and 20X of this embodiment is formed of a solid resin having flexibility and appropriate rigidity that enables the sheet to flex and deform outward, which will be described later, and this type of resin. Examples thereof include polypropylene and polyethylene. Since the pair of left and right side shields 20, 20X have substantially the same basic configuration except that they have a substantially symmetrical shape, the details thereof will be described below by taking the right side shield 20 as an example.

The right side shield 20 shown in FIGS. 2 and 4 has an outer surface portion 21 having an outer shape, a flange portion 22 formed on the edge of the outer surface portion 21, and an engagement configuration (a pair of extension portions 31, 32) described later. It has a convex portion 40, an engaging portion 50 (cylindrical portion 58), and a guide portion 60). Here, the outer surface portion 21 is a portion forming the side surface shape of the right side shield 20, and can cover the outer plate portion 10a of the right side frame 10 from the outside of the seat (right side in the drawing). Further, the flange portion 22 is a portion formed by bending the edge of the outer surface portion 21 toward the left side inside the seat, and the peripheral plate portion 10b of the right side frame 10 in the assembled state described later. You can apply it. The protruding dimension (left and right dimension) of the flange portion 22 with respect to the outer surface portion 21 is larger than the dimension of the corresponding peripheral plate portion 10b.

The right side shield 20 shown in FIGS. 2 and 4 has a front side portion 24 arranged in the front and a rear side portion 26 arranged in the rear, based on the state of being arranged in the right side frame 10. It can be divided into (details will be described later). The front side portion 24 is formed in a long rectangular shape in the front-rear direction following the front side portion of the right side frame 10. A pair of front and rear pedestals 24a and 24b and a pair of front and rear locking claws 25a and 25b are provided on the front side portion 24. Each pedestal portion 24a (24b) is a trapezoidal columnar portion protruding from the back side of the front side portion 24, is formed at an intermediate position with the front end of the front side portion 24, and corresponds to a locking hole 13a of the right side frame 10. It is arranged so that it can face each other in 13b). Further, each locking claw 25a (25b) is a portion protruding to the left side from the tip surface of the corresponding pedestal portions 24a and 24b, and is inserted into the corresponding locking hole 13a (13b) and its edge as described later. It is possible to lock in. That is, the locking claw 25a on the front side has a horizontal J-shape with the tip side bent downward, and can be locked to the lower edge of the locking hole 13a on the front side. Further, the locking claw 25b on the rear side has a substantially rectangular parallelepiped shape and can be engaged with the peripheral edge of the locking hole 13b on the rear side.

[Rear side shield (rear part)]
Further, the rear side portion 26 of the right side shield 20 shown in FIGS. 2 and 4 is a portion corresponding to the rear portion of the side shield of the present invention, and has a shape that rises upward following the rear side surface of the right side frame 10. Is formed in. The outer surface portion 21 of the rear side portion 26 can cover the outer plate portion 10a of the rear portion of the right side frame 10 from the outside of the seat (right side in each drawing) as described later. Here, referring to FIGS. 2 and 5, above the outer plate portion 10a at the rear of the side frame 10 on the right side, an arrangement outer surface portion 21a on which the operation lever 70 is arranged and an insertion window through which the rotating member 2r can be inserted can be inserted. A portion 21H is provided. The arrangement outer surface portion 21a is a portion in which the upper outer surface portion 21 of the rear side portion 26 is relatively concave toward the left side, and the insertion window portion 21H is provided in the center of the arrangement outer surface portion 21a. It is a circular through hole. Further, below the arrangement outer surface portion 21a, a step outer surface portion 21b projecting toward the right side and a lower outer surface portion 21c extending downward from the lower end portion of the step outer surface portion 21b are provided. .. The step outer surface portion 21b is a portion arranged adjacent to the operating lever 70 from the lower side. The rightward extension dimension W1 of the lower outer surface portion 21c is set so as not to protrude from the operating lever 70 arranged on the arrangement outer surface portion 21a. For example, by adjusting the overhanging dimension W1 of the lower outer surface portion 21c and arranging it substantially flush with the outer surface of the operating lever 70 in the vertical direction as shown in FIG. 12, the configuration contributes to improving the appearance of the seat. Become.

[Flange part]
Further, the flange portion 22 of the rear side portion 26 shown in FIGS. 2 and 4 to 6 is formed in a portion from the upper side to the rear side of the outer plate portion 10a, and as will be described later, the peripheral plate of the rear portion of the side frame 10 It is a place to which the part 10b is assigned. That is, as shown in FIG. 4, the rear side portion 26 includes an upper flange portion 22a provided on the upper side of the outer surface portion 21 and a rear flange portion 22b provided on the rear side of the outer surface portion 21. It is formed so as to be a series, and the outer surfaces of these flange portions 22a and 22b form a curved surface along the edge of the outer surface portion 21. An upper inner flange portion 22aa that bends downward is provided on the front inner edge (left edge) of the upper flange portion 22a. The upper inner flange portion 22aa is a portion that is applied from the left side to the upper part of the side frame 10 on the right side in the assembled state.

[Extension]
A pair of extension portions (first extension portion 31, second extension portion 32) are provided at appropriate positions of the flange portions 22 shown in FIGS. 4 to 6 so as to project to the left side inside the seat. ing. The first extension portion 31 is a portion protruding from the lower portion of the rear flange portion 22b to the left side inside the seat, and the outer surface (rear surface) of the first extension portion 31 is the outer surface of the rear flange portion 22b. It is a curved surface that has almost the same shape as. The first extension portion 31 is formed in a rectangular shape that is substantially vertically long when viewed from the front, and is arranged behind the side frame 10 on the right side in the assembled state shown in FIG. Become. Further, the second extension portion 32 shown in FIGS. 4 to 6 is a portion integrally provided on the lower edge of the first extension portion 31, and faces forward from the lower edge of the first extension portion 31. Overhanging. The second extension portion 32 is formed in a substantially long rectangular shape in the front-rear direction when viewed from above, and is arranged below the side frame 10 on the right side in the assembled state shown in FIG. Become.

[Convex part]
The convex portion 40 shown in FIGS. 4 to 6 is a convex portion provided on the back surface side of the first extension portion 31 and the second extension portion 32, and the engagement portion 50 described later is integrally formed. Has been done. The convex portion 40 is a rib (standing plate) -shaped portion formed so as to straddle the first extension portion 31 and the second extension portion 32. That is, the convex portion 40 extends downward from the upper position on the back surface of the first extension portion 31 and is continuously formed to the front end of the second extension portion 32, and the extension portions 31 and 32 are structurally formed. It also has a structure to reinforce. An upper lateral rib portion 41 is formed at the upper end of the convex portion 40 formed on the first extension portion 31, and a lower lateral rib portion 42 is formed at the lower end of the convex portion 40. The upper and lower lateral rib portions 41 and 42 are vertical wall-shaped portions projecting from the right surface of the convex portion 40 to the left, and are formed in a state parallel to each other. Further, an outer edge rib portion 43 is provided on the convex portion 40 portion formed on the second extension portion 32 so as to surround the outer edge thereof. Then, with reference to FIG. 10, the height dimension H1 of the convex portion 40 is defined by the length from the back surface of each of the extension portions 31 and 32 to the tip of the convex portion 40, and corresponds to the side frame 10 in the assembled state. The thickness dimension T1 or more of the peripheral plate portion 10b is set.

[Engagement part]
Further, the engaging portion 50 shown in FIGS. 2 and 4 to 7 is a portion where the engaging convex portion 16 of the side frame 10 can be inserted and engaged as described later, and the convex portion 31 of the first extension portion 31. It is integrally provided in the portion 40. The engaging portion 50 is a rectangular parallelepiped portion protruding to the left from the convex portion 40 of the first extension portion 31, and as shown in FIG. 6, a pair of upper and lower wall portions 51 and 52 and both wall portions. It has three pairs of partition walls 53, 54, 55 that divide the space between them. The pair of upper and lower wall portions (upper side wall portion 51, lower side wall portion 52) are vertical wall-shaped portions projecting to the left from the convex portion 40 so as to be parallel to the lateral rib portions 41 and 42, and the upper side wall portion 51. Is arranged on the upper side, and the lower side wall portion 52 is arranged on the lower side thereof. A gap is provided between the upper side wall portion 51 and the lower side wall portion 52 to allow insertion of the engaging convex portion 16 of the right side frame 10 shown in FIG. In the present embodiment, the upper side wall portion 51 corresponds to the upper side wall portion of the present invention, and the lower side wall portion 52 corresponds to the lower side wall portion facing the upper side wall portion of the present invention.

Further, the three pairs of partition walls (ceiling partition wall 53, intermediate partition wall 54, bottom partition wall 55) shown in FIG. 6 are wall portions that are bridged and integrated between the upper side wall portion 51 and the lower side wall portion 52. Yes, the inside of the engaging portion 50 is formed so as to be roughly divided into three parts in the front-rear direction. The ceiling partition wall portion 53 is a wall portion formed at the tips (front edges) of the upper side wall portion 51 and the lower side wall portion 52 to form the ceiling of the engaging portion 50, and is a position that substantially coincides with the height position of the convex portion 40. It is located in. Further, the intermediate partition wall 54 is provided at the rear position of the ceiling partition wall 53 so as to be substantially parallel, and the bottom partition wall 55 is provided at the rear position of the intermediate partition wall 54 so as to be substantially parallel. There is. A vertical wall-shaped reinforcing wall portion 56 extending to the left and right is integrally formed between the ceiling partition wall portion 53 forming the upper part of the engaging portion 50 and the intermediate partition wall portion 54, and is engaged by the reinforcing wall portion 56. The upper part of the joint 50 is reinforced. Further, with reference to FIG. 7, the intermediate partition wall portion 54 and the bottom partition wall portion 55 are arranged substantially in parallel with a separation dimension into which the engaging convex portion 16 can be inserted.

[Cylindrical part]
A square tubular portion 58 surrounded by the intermediate partition wall portion 54, the bottom partition wall portion 55, the upper side wall portion 51, and the lower side wall portion 52 is formed at a substantially intermediate position of the engaging portion 50 shown in FIG. Has been done. The left and right ends of the tubular portion 58 have an open shape as shown in FIG. 7, and the insertion of the engaging convex portion 16 can be allowed. That is, a left opening 58a is provided at the left end of the tubular portion 58, and a right opening 58b is provided at the right end of the tubular portion 58 so as to penetrate the convex portion 40 to the left and right. Since each of the openings 58a and 58b has an opening size that allows the engaging convex portion 16 to pass through, the engaging convex portion 16 is inserted into the tubular portion 58 from the left-right direction and engaged with the tubular portion 58. Is possible.

[Guide section]
Further, the guide portion 60 shown in FIGS. 5 and 7 is a portion for guiding the engaging convex portion 16 to the tubular portion 58 of the engaging portion 50, and is formed on the right side of the tubular portion 58 with the convex portion 40 in between. Has been done. The guide portion 60 is a stepped convex portion provided on the back surface of the first extension portion 31, and the tip surface 62 of the guide portion 60 is a bottom partition wall portion 55 forming the bottom surface of the tubular portion 58. It is formed so as to be substantially flush with each other. Therefore, during the arrangement work described later, the engaging convex portion 16 can be smoothly guided to the inside of the tubular portion 58 through the right opening portion 58b while being along the tip surface 62 of the guide portion 60. ing.

[Arrangement work of side shield]
With reference to FIGS. 1 and 2, the pair of left and right side shields 20, 20X are arranged on the corresponding side frames 10 so as to be arranged on the right side surface 4a and the left side surface 4b of the seat cushion 4. Here, since the pair of left and right side shields 20 and 20X have substantially the same configuration and the arrangement method thereof is also substantially the same, the arrangement method will be described below by taking the right side shield 20 as an example. When arranging the right side shield 20 shown in FIG. 2, each locking claw 25a (25b) is sequentially locked to the corresponding locking hole 13a (13b), and the front side of the right side shield 20 is sequentially locked. The portion 24 is positioned and arranged with respect to the front portion of the right side frame 10. Then, the rear side portion 26 of the right side shield 20 is arranged at the rear portion of the right side shield 20, but in this type of configuration, the rear side portion 26 has good performance due to a relatively simple configuration. It is desirable to dispose of it.

Therefore, as shown in FIG. 2, the rear portion 26 of the side shield 20 on the right side of this embodiment includes the extension portions 31 and 32, and the convex portions 40 protruding from the back side of the extension portions 31 and 32. An engaging portion 50 integrally formed with the convex portion 40 is provided. Then, the engaging portion 50 is engaged with the engaging convex portion 16 provided at the rear portion of each side frame 10 and protruding in the seat width direction, so that the rear side portion 26 is assembled to the rear portion of the right side frame 10. It will be attached and arranged. In order to specifically explain the engagement method between the engaging portion 50 and the engaging convex portion 16, the procedure for arranging the right side shield 20 will be described in more detail below.

When arranging the right side shield 20, the front part 24 shown in FIG. 2 is locked to the front part of the right side frame 10, and then the rear part 26 is placed on the right side as shown in FIGS. 8 and 9. Assemble to the rear of the side shield 20. At this time, the outer plate portion 10a at the rear portion of the side frame 10 on the right side is covered from the right side by the outer surface portion 21 of the rear side portion 26, and the portion from the upper side to the rear side of the peripheral plate portion 10b is the flange of the rear side portion 26. It is in a state of being surrounded by the part 22. In this state, the engaging convex portion 16 projecting from the rear end of the right side shield 20 to the left side is formed by the engaging portion 50 provided on the first extension portion 31 of the rear flange portion 22b by the procedure described later. It is inserted into the tubular portion 58.

Here, in this embodiment, referring to FIGS. 8 and 9, the right side shield 20 has appropriate flexibility, and the rear flange portion 22b of the rear portion 26 is located rearward, which is the outer side of the seat. It can be bent and deformed. Therefore, as shown in FIG. 8, using the first extension portion 31 as a handle, the rear flange portion 22b portion provided with the engaging portion 50 is bent and deformed so as to warp backward and to the left, and is engaged. It is separated from the tip edge portion 16c of the joint convex portion 16. The rear flange portion 22b portion is a first extension portion 31 on which the engaging portion 50 is arranged and a rear flange portion 22b portion around the first extension portion 31, and is a side shield portion provided with the engaging portion of the present invention. Corresponds to. Then, after the engaging portion 50 (cylindrical portion 58) is separated from the engaging convex portion 16, the rear flange portion 22b and the first extension portion 31 are returned to their original states as shown in FIG. By doing so, the first extension portion 31 gradually moves forward and to the right, and along with this, the right opening 58b of the tubular portion 58 of the engaging portion 50 becomes the tip edge portion 16c of the engaging convex portion 16. Approaching. At this time, as shown in FIG. 7, the engaging convex portion 16 approaching the engaging portion 50 is pressed against the tip surface 62 of the guide portion 60 provided on the right side of the engaging portion 50 to form a tubular shape. It can be smoothly guided to the right opening 58b of the portion 58. Then, as shown in FIG. 9, the first extension portion 31 returns to the original state, so that the engaging convex portion 16 is inserted into the tubular portion 58 of the engaging portion 50 and engaged as shown in FIG. Will be combined. At this time, the upper edge portion 16a of the engaging convex portion 16 is in contact with the upper side wall portion 51 of the tubular portion 58 because the right side shield 20 moves downward due to its own weight. It will be inserted. Further, since the lower side wall portion 52 of the tubular portion 58 is arranged so as to be separated downward from the lower edge portion 16b of the engaging convex portion 16 so as to form a gap, the engaging convex portion 16 is lowered. It can be smoothly inserted into the tubular portion 58 without being disturbed by the side wall portion 52.

In this way, with the right side frame 10 arranged in the right side shield 20, the engaging convex portion 16 protruding to the left is inserted into the tubular portion 58 of the engaging portion 50, and the upper side wall portion 51 It is pressed against and engaged. By assembling the rear portion 26 of the right side shield 20 by engaging the engaging portion 50 and the engaging convex portion 16 in this way, it is possible to omit fixing members such as screws, and the seat. The configuration contributes to the simplification of the configuration. Further, in this embodiment, in the state where the right side shield 20 shown in FIGS. 9 and 13 is arranged, the first extension portion 31 is arranged behind the rear portion of the right side frame 10, and is on the rear side. It projects to the left of the flange portion 22b. Further, the second extension portion 32 projects to the left of the rear flange portion 22b in a state of being arranged below the rear portion of the right side frame 10. The convex portion 40 arranged across the first extension portion 31 and the second extension portion 32 is in a state of being arranged on the left side thereof so as to surround the rear portion of the right side frame 10. The left side shield 20X shown in FIG. 1 can also be arranged on the left side frame (not shown) by the same procedure.

[Arrangement work of operating lever]
Next, with reference to FIGS. 2 and 12, the operating lever 70 is attached to the rear portion (arranged outer surface portion 21a) of the right side shield 20 in a state of facing the front-rear direction. At this time, in the rear portion 26 of the side shield 20 on the right side, the end portion of the rotating member 2r is arranged in a protruding state at the insertion window portion 21H shown in FIG. Therefore, with reference to FIGS. 2 and 12, the operating lever 70 is arranged on the arrangement outer surface portion 21a, and the end portion of the rotating member 2r is attached to the back side of the operating lever 70. In this way, the operating lever 70 is arranged at the rear right side of the seat cushion 4 in a state of facing the front-rear direction as shown in FIG. Then, the front side portion of the operating lever 70 is pulled upward, and the substantially circular rear portion of the operating lever 70 is rotated (rotated) around the axis A together with the rotating member 2r to unlock the reclining RM. can do. Since the operating lever 70 is urged in the reverse rotation direction together with the rotating member 2r, when the pulling operation is stopped, the operating lever 70 naturally reversely rotates and returns to the original state.

[Seat cover placement work]
After forming the seat cushion 4 in this way, the seat cover (back cover 6S) is arranged on the seat back 6 with reference to FIGS. 11 and 12. Here, the back cover 6S has substantially the same basic configuration as the seat cover 4S of the seat cushion 4, but the lower band cover 6SS is attached to the lower edge of the rear surface of the back cover 6S. The lower band cover 6SS is a face material having substantially the same dimensions in the seat width direction as the back cover 6S, and is in a state of hanging downward from the lower edge of the rear surface of the back cover 6S.

Therefore, after the back cover 6S shown in FIGS. 11 and 12 is put on the seat pad (not shown) of the seat back 6, the lower band cover 6SS is wrapped around the lower surface side of the seat cushion 4 and placed in an appropriate position of the seat cushion 4. Lock it. At this time, the right edge E1 and the left edge E2 of the lower band cover 6SS shown in FIG. 12 are arranged so as to be overlapped with the first extension portion 31 (31X) of the corresponding side shield 20 (20X) at the rear position of the seat. Keep it. By supporting the lower portions of the right edge E1 and the left edge E2 of the lower band cover 6SS with the corresponding first extension portion 31, it is possible to arrange the lower band cover 6SS in an appropriately stretched state. It becomes. In the normal lower band cover 6SS, a plate material (not shown) extending to the left and right is attached to the back side thereof. Then, the right edge E1 and the left edge E2 of the lower band cover 6SS are tensioned by the plate material, but the number of parts of the lower band cover 6SS increases by the amount of the plate material. Therefore, in this embodiment, by using the left and right first extension portions 31 (31X) as a substitute for the plate material, the lower band cover 6SS can be arranged in a good-looking manner while suppressing an increase in the number of parts thereof. it can.

[Appearance of seat cushion]
In the seat cushion 4 shown in FIG. 1, by arranging a pair of left and right side shields 20, 20X, it is possible to avoid a situation in which the corresponding side frame 10 is excessively exposed to the outside. For example, referring to FIG. 13, when the rear right side of the seat cushion 4 is peeked from the rear and the left side, the rear side of the right side frame 10 is exposed when the back cover 6S and the lower band cover 6SS are rolled up. I have something to do. At this time, in the rear portion of the side frame 10 on the right side, the peripheral plate portion 10b portion on the rear end side is surrounded from the rear by the first extension portion 31, and the peripheral plate portion 10b portion on the lower end side is the second extension portion 32. It is in a state of being surrounded from below. For this reason, it is possible to avoid a situation in which the peripheral plate portion 10b of the side frame 10 on the right side in the assembled state is excessively exposed to the outside at the extension portions 31 and 32 as much as possible, and the excellent appearance of the seat is more ensured. It is possible to secure it. Further, by providing the extension portions 31 and 32, the right side shield 20 can be appropriately arranged so that foreign matter can be avoided as much as possible inside the side shield 20. Further, in this embodiment, since the peripheral plate portion 10b of the right side frame 10 is surrounded from the left side by the convex portion 40 formed over the extension portions 31 and 32, the peripheral plate portion 10b is excessive. It is possible to avoid the external exposure of the device more appropriately.

As described above, the side shields (20, 20X) of the present embodiment are provided with extension portions (31, 32) in which the flange portion 22 is partially extended. Therefore, the extension portions (31, 32) can surround the seat frame 4F in a good-looking manner, and the side shields (20, 20X) are appropriately arranged so as to avoid foreign matter from entering the inside as much as possible. It is also possible. Further, an engaging portion 50 is provided by utilizing the convex portion 40 provided on the extension portions (31, 32), and the engaging portion 50 is engaged with the engaging convex portion 16 of the seat frame 4F. Therefore, in this embodiment, by assembling the rear part of the side shield (20, 20X) to the rear part of the seat frame 4F by engaging the engaging portion 50 and the engaging convex portion 16, a fixing member such as a screw is attached. Can be omitted, which contributes to the simplification of the seat configuration. Further, in this embodiment, since a plurality of extension portions (31, 32) in which the flange portion 22 is partially extended are provided, each of these extension portions (31, 32) makes the rear portion of the seat frame 4F look better and more appropriate. It is possible to enclose it in. Further, by providing the convex portion 40 and the engaging portion 50 on at least one of the first extension portion 31 and the second extension portion 32, the side shield is formed by engaging the engaging portion 50 and the engaging convex portion 16. The rear portion of (20, 20X) can be assembled to the seat frame 4F.

Further, in the present embodiment, by providing the convex portion 40 so as to straddle the plurality of extension portions (31, 32) and arranging the convex portion 40 inside the seat of the seat frame 4F, the external exposure of the seat frame 4F can be avoided as much as possible. It is possible. Further, in the present embodiment, the guide portion 60 enables the engaging portion 50 and the engaging convex portion 16 to be more reliably engaged with each other, and the side shield (20, 20X) has excellent assembling property. It has a structure that contributes to securing and improving workability. Further, in this embodiment, the engaging convex portion 16 can be inserted into the tubular portion 58 of the engaging portion 50 to be engaged more stably, and the side shield (20, 20X) is excellently assembled. It has a structure that further contributes to ensuring the attachment. Further, in this embodiment, the engaging convex portion 16 is brought into contact with the upper side wall portion 51 and separated from the lower side wall portion 52 to ensure smooth insertion of the engaging convex portion 16 into the engaging portion 50. At the same time, the side shield (20, 20X) has a structure that contributes to ensuring excellent assembling property. Further, in the present embodiment, since the convex portion 40 and the engaging portion 50 are arranged so as to surround the peripheral plate portion 10b of the seat frame 4F from the inside of the seat, the external exposure of the seat frame 4F is more reliably avoided. It is possible. Further, in this embodiment, the side shield (20, 20X) portion provided with the engaging portion 50 can be bent and deformed in the direction away from the engaging convex portion 16 and then returned to the original state. The structure contributes to improving workability when assembling the shield (20, 20X). Therefore, according to this embodiment, the rear portion of the side shield (20, 20X) can be arranged on the seat frame 4F with good performance by a relatively simple configuration.

The vehicle seat 2 of the present embodiment is not limited to the above-described embodiment, and may take various other embodiments. In the present embodiment, the configurations (shape, dimensions, formation positions, number of formations, etc.) of the extension portions 31, 32 and the convex portions 40 are illustrated, but the configuration of each of these portions is not limited. For example, as an extension portion, at least one of the first extension portion and the second extension portion can be formed at an appropriate position on the side shield. When forming the first extension portion and the second extension portion (or other extension portions), these plurality of extension portions may be integrally formed or may be formed individually. is there. Further, the convex portion and the engaging portion can be formed in at least one of the first extension portion and the second extension portion, or only one of them, depending on the arrangement position of the engaging convex portion. It is desirable that the convex portion is configured to reinforce each extension portion, but it is not always necessary to form the convex portion so as to have reinforcing performance. Further, the height dimensions of the convex portion and the engaging portion can be set regardless of the configuration of the side frame, and the height dimensions of the convex portion and the engaging portion can be made different.

Further, in the present embodiment, the configurations of the engaging portion 50, the guide portion 60, and the engaging convex portion 16 are illustrated, but the configuration of each portion is not limited. The engaging portion and the engaging convex portion can have appropriate shapes that can be engaged with each other. For example, the engaging convex portion may have a horizontal J-shape, and the tip thereof can be engaged with the peripheral edge of the tubular portion of the engaging portion, and the engaging portion also has a J-shape. It can also be engaged with the tip of the. Further, a ring-shaped portion may be provided at the tip of the engaging convex portion, and a columnar engaging portion may be fitted and engaged with the ring-shaped portion. Further, the guide portion can take various shapes capable of guiding the engaging convex portion, and can be formed of, for example, a rail-shaped portion. Further, the guide portion can be omitted from the flange portion.

Further, the configuration of the vehicle seat 2 can be appropriately changed, and the configurations of the seat cover, the seat pad, and the seat frame can be appropriately changed according to the seat configuration. Further, the side shields can be arranged on at least one of both side surfaces (outer side or inner side) of the seat cushion. Further, the configurations of the operating lever and the reclining can be changed as appropriate, and can be omitted depending on the seat configuration. The configuration of the present embodiment can be applied to all vehicle seats such as vehicles, aircraft, trains, and ships.

2 Vehicle seat 4 Seat cushion 4a Right side of seat cushion 4b Left side of seat cushion 6 Seat back 8 Headrest RM reclining 2r Rotating member 4r Connecting rod 4S Seat cover 6S Back cover 6SS Lower band cover E1 Right edge of lower band cover E2 Left edge of lower band cover 4P Seat pad 4F Seat frame 10 Side frame 10a Outer plate part 10b Peripheral plate part 10H Arrangement hole 11 Front frame 12 Rear frame 13a, 13b Locking hole 16 Engagement convex part 16a Engagement convex part Upper edge 16b Lower edge of engaging convex 16c Tip edge of engaging convex 20X Left side shield 20 Right side shield 21 Outer surface 21H Insertion window 21b Step outer surface 21a Arranged outer surface 21c Lower side Outer surface part 22 Flange part 22a Upper flange part 22aa Upper inner flange part 22b Rear side flange part 24 Front side part 24a, 24b Pedestal part 25a, 25b Locking claw 26 Rear part (rear part of side shield of the present invention)
31 First extension 32 Second extension 40 Convex 41 Upper lateral rib 42 Lower lateral rib 43 Outer edge rib 50 Engagement 51 Upper side wall 52 Lower side wall 53 Ceiling partition 54 Intermediate partition 54 55 Bottom partition 56 Reinforcing wall 58 Cylindrical part 58a Left opening 58b Right opening 60 Guide 62 Tip surface 70 Operating lever 80 Slide rail

Claims (8)

The seat cushion serving as a seat includes a seat frame forming a seat frame and side shields arranged on the side surfaces of the seat frame in the seat width direction.
The rear portion of the side shield has an outer surface portion that covers the rear portion of the seat frame from the outside of the seat, and a flange portion that bends from the edge of the outer surface portion toward the inside of the seat, and is arranged at the rear portion of the seat frame. In the vehicle seat that is
The rear portion of the side shield includes an extension portion in which a part of the flange portion arranged so as to surround the rear portion of the seat frame is extended inside the seat, a convex portion protruding from the back side of the extension portion, and the above. An engaging portion integrally formed on the convex portion is provided,
The rear portion of the side shield is assembled and arranged on the rear portion of the seat frame by engaging the engaging portion with an engaging convex portion provided at the rear portion of the seat frame and projecting in the seat width direction. The vehicle seat that has been used. The flange portion is provided with a first extension portion provided behind the rear portion of the seat frame and a second extension portion provided below the rear portion of the seat frame, and the first extension portion is provided. The vehicle seat according to claim 1, wherein the convex portion and the engaging portion are provided on at least one of the portion and the second extension portion. The convex portion is provided so as to straddle the first extension portion and the second extension portion, and is arranged inside the seat at the rear portion of the seat frame in the assembled state. Item 2. The vehicle seat according to item 2. The vehicle seat according to any one of claims 1 to 3, wherein the flange portion is provided with a guide portion that guides the engaging convex portion to the engaging portion. The vehicle seat according to any one of claims 1 to 4, wherein the engaging portion has a tubular portion into which the engaging convex portion is inserted and engaged. The engaging portion has an upper side wall portion located above the engaging convex portion in the inserted state and a lower side wall portion located at a position facing the upper side wall portion.
The vehicle seat according to claim 5, wherein the engaging convex portion is engaged with the engaging portion in a state of being in contact with the upper side wall portion and in a state of being separated from the lower side wall portion. The seat frame has an outer plate portion having an outer shape and a peripheral plate portion formed by bending the peripheral edge of the outer plate portion toward the inside of the seat.
In the assembled state, the outer plate portion is arranged to face the outer surface portion, and the peripheral plate portion is engaged with the convex portion from the inside of the seat while being applied to the flange portion. The vehicle seat according to any one of claims 1 to 6, which is enclosed in a section. The vehicle seat according to any one of claims 1 to 7, wherein the side shield portion provided with the engaging portion is flexible and deformable in a direction away from the engaging convex portion.

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