CN103129435B - For the structure of the decoration cover assembly of back of seat - Google Patents

Abstract

The present invention relates to the structure of a trim cover assembly for a seat back. On the back of the seat back, the seat back trim cover assembly includes a centrally disposed openable first cover portion and a pair of second cover portions disposed on opposite sides of the first cover portion. A pair of female fastening assemblies are provided respectively to two lateral ends in the first cover portion, and each of said female fastening assemblies includes: an anchoring element; a female fastening element; A connection element that connects elements. The anchoring elements firmly engage the seat back frame, thereby neatly fixing the two lateral ends of the first cover to the back of the seat back. The male fastening element securely engages the female fastening element, thereby neatly fixing the two second cover parts to the The back of the seat back.

Description

Structure of trim cover assembly for seat back

technical field

The present invention relates to a structure of a trim cover assembly covering a seat back of a car seat. In particular, the present invention relates to an arrangement of a trim cover assembly adapted to cover a seat back or more preferably the back of a seat back provided with pockets.

Background technique

As can be understood from FIG. 1, FIG. 1 shows a type of seat back SB', which includes a seat back frame 3 made of metal material, foam padding 4 and trim cover assembly 1', wherein the molding process Forming the foam padding 4 into a predetermined configuration substantially conforming to the outer contour of the seat back in which the seat back frame 3 is integrally provided and formed by sewing together a plurality of cover materials into a three-dimensional shape has been achieved The trim cover assembly 1' is firmly attached to the outer surface of the packing 4. Thus, it will be appreciated that the trim cover assembly 1' covers substantially the entire outer surface of the foam padding 4.

In the rear side of the padding 4 formed in this way, the seat back frame 3 is elastically connected with a flat support plate 6 via springs 61 , whereby the flat support plate 6 elastically supports the front area of the padding 4 .

As shown, the trim cover assembly 1' is essentially formed with an openable rear cover portion 11' in its back side 1'A so that only the upper end of the rear cover portion 11' is integrated with the trim cover assembly 1', All other remaining ends of the rear cover portion 11' are not connected to the trim cover assembly 1'. Formed in approximately the lower half of this openable rear cover portion 11' is a pocket P adapted to receive books, leaflets or other small items. Reference numeral 12' designates a pair of rear cover parts defined in the back of the trim cover assembly 1' as shown in FIG. equal length and are spaced apart from each other by a distance substantially equal to the width of said cover portion 11'. Thus, it will be appreciated that the openable rear cover portion 11' can be moved towards the two cover parts 12' and can be arranged between the two cover parts 12' to close and complete the back of the trim cover assembly 1' prior to assembly.

In this conventional seat back, a pair of zippers or zippers 11A are used to engage and disengage an openable rear cover portion 11' with a pair of rear cover portions 12'. As referring to FIG. 1, a zipper 11A is fixedly connected between the two first lateral ends along the two different rear cover portions 11' and 12', and the other A zipper 11A is also fixedly connected between the two second lateral ends of the two different rear cover parts 11' and 12' along said two second lateral ends.

Japanese Laid-Open Patent Publication No. 2001-8793 (JP 2001-8793A) has disclosed such a seat back trim cover assembly having an openable rear cover portion with a zipper. According to this patent, there is provided a three-dimensional trim cover assembly for a seat back, the three-dimensional trim cover assembly having a rear cover portion similar to the openable rear cover portion 11' formed in its back, so as to In the same manner as described above, a pair of slits is defined between the particular rear shroud portion and the other two rear shroud portions of the trim shroud assembly. A pair of zippers are provided between the rear shroud portion and the other two rear shroud portions in the same manner as described above, thereby allowing the openable rear shroud portion to be engaged and disengaged from the trim shroud assembly. Therefore, according to the above-mentioned prior art, in the assembly of the seat back, by lifting up such an openable rear cover portion, the trim cover assembly can be opened wide enough to allow foam padding to be integrally inserted to place on the trim cover. assembly, and after the foam padding is placed in the trim cover assembly, the openable rear cover portion can be releasably secured to the back of the trim cover assembly by a zipper so that the trim cover assembly can be closed to cover the basic Foam padding throughout. This makes it easy and effective to cover the padding with the trim cover assembly, thereby increasing the efficiency and speed for attaching the trim cover assembly to the foam padding to form the seat back.

However, the above-mentioned conventional structure of the seat back trim cover assembly provided with a pocket on its back has a problem that when the occupant pulls the pocket P strongly or inserts a large book or a plurality of books or articles into the pocket , the openable rear cover portion 11 ′ and the two cover portions 12 ′ engaging the openable rear cover portion via the zipper 11A are forced out of the seat back due to corresponding excessive force exerted by occupants, books or objects. The back is pulled and expanded rearward and inward too much, causing the zipper portions 11A to be forced away from each other and open, or deformed in a meandering or meandering manner, which adversely affects the aesthetic appearance of the back of the seat back.

Contents of the invention

In view of said disadvantages, it is an object of the present invention to provide an improved arrangement of a trim cover assembly for a seat back which ensures prevention of The above-mentioned deformation and detachment, and also avoid the above-mentioned externally applied large force on the back of the trim cover assembly attached to the back of the seat back.

In order to achieve this object, according to the present invention there is basically provided an arrangement of a trim cover assembly for a seat back,

Wherein, the seat back includes a rear facing back, and the seat back includes: foam padding formed into a shape that substantially conforms to the outer contour of the seat back, the foam padding includes a shape corresponding to the back of the seat back the back of the seat back frame, the seat back frame is set in the foam padding, the seat back frame includes a pair of side frame portions; and the trim cover assembly is formed with the foam padding a substantially uniform three-dimensional shape, said trim cover assembly covered with foam padding,

Wherein, the trim cover assembly includes a back surface corresponding to the back of the seat back, and the trim cover assembly further includes: a first cover portion defined in the back surface of the trim cover assembly so that the second One end of a cover portion is integral with only the back of the trim cover assembly such that the first cover portion is movable relative to the one end in a direction toward and away from the back of the foam padding, the first cover portion having a pair of a lateral end region; and a pair of second cover portions defined in the back of the trim cover assembly so as to be symmetrically arranged relative to the first cover portion, wherein the pair of One of the second cover parts includes a free end region, and the other of the pair of second cover parts also includes a free end region, so that the two free end regions of the pair of second cover parts spaced apart from each other with respect to the first cover portion while extending facing each other substantially along the entire length of the pair of side frame portions of the seat back frame,

wherein a pair of male (male) fastening elements are arranged respectively along free end regions of a pair of second cover parts to free end regions of said pair of second cover parts,

Wherein, a pair of female (female) fastening components are respectively arranged to the two lateral end regions of the first cover part along the two lateral end regions of the first cover part, the pair of female fastening components the assemblies each include an anchoring element and a female fastening element, and

wherein the anchoring element securely engages each of a pair of lateral frame portions along the seat back frame, and the male fastening element securely engages each of the pair of lateral frame portions along the female fastening element Engage the female fastening element so that the first cover part is securely attached to the back of the foam padding, while at the same time a pair of second cover parts are also securely attached to the back of the foam padding, the two free end regions being respectively The two lateral end regions of the first hood part adjoin along the two lateral end regions of the first hood part.

As an exemplary mode of the invention, the first cover portion may be provided with a pocket.

Preferably, each of the pair of male fastening members may be formed of a seamable hard synthetic resin material and connected to the pair of second covers along free end regions of the pair of second cover portions respectively by sewing. part of the free end area. Also, the pair of female fastening members may be formed from a seamable hard synthetic resin material, and connected to the two sides of the first cover part along the two lateral end regions of the first cover part respectively by sewing. Lateral end area.

As an aspect of the present invention, each of a pair of side frame portions of the seat back frame may have a channel cross section, the pair of side frame portions includes a pair of flange portions, and the pair of flange portions Each extends along a pair of lateral frame parts, wherein one of the two flange parts has a free end region. The anchoring element has a configuration and properties that allow insertion of a free end region of each of a pair of flange portions into the anchoring element to securely engage the anchoring element.

As another aspect of the present invention, each of the pair of male fastening elements may include a male fastening plate along a free end region of each of the pair of second cover portions. Provided to the free end region of each of the pair of second housing portions and associated with each of the two female fastening assemblies is a female fastening element having a generally "J" shaped cross-section, the The female fastening element has: a flat base portion; and a female engaging portion that extends curvilinearly from one end of the flat base portion in a hairpin manner, and is further substantially parallel to the flat base portion The relationship extends, terminating in a protruding end portion facing the flat base portion, while the female engaging portion is spaced from the flat base portion, whereby the female fastening element has an opening defined in the protruding between the end portion and the flat base portion; and an interior space defined by the flat base portion, the female engaging portion and the protruding end portion, wherein the free end region of the second cover portion Both the male fastening element provided with the free end region of the second cover part are inserted through the opening and firmly engaged in the inner space, so that a pair of second cover parts are firmly attached to the foam padding. In suitable positions on the rear side, the free end regions of the pair of second cover parts abut the two lateral ends of the first cover part respectively along the two lateral end regions of the first cover part In the upper region, the flat base portion of the female fastening element closely contacts the outer surface of the back of the foam padding.

As yet another aspect of the present invention, each of the pair of female fastening assemblies may include a fixed base member to securely engage one of the pair of lateral frame portions, the fixed base member having a fixed portion integrally defined therein. of the plate portion and the anchoring element. Also, each of the female fastening components may further include a connecting element, and the plate portion of the fixed base member and the female fastening element are connected together via the connecting element. Each of the fixed base member, the female fastening member and the connecting member has a length substantially equal to the total length of each of the pair of lateral frame portions.

As yet another aspect of the present invention, the back of the foam padding may include: an outer surface; an area defined in the back of the foam padding adjacent to each of a pair of lateral frame portions, and two female fastening The assemblies may each include a fixed base element to securely engage one of a pair of lateral frame portions, the fixed base element having a plate portion integrally defined therein and an anchor element, wherein such plate portion is integrated with the foam padding The regions of the back are in intimate contact, and each of the two female fastening assemblies further includes a connecting element having a first portion and a second portion. The first part connects the plate part of the fixed base element while abutting on said area of the back of the foam padding, and the second part connects the female fastening element while abutting on the outer surface of the back of the foam padding.

Various other features and advantages will become apparent from the following description read with reference to the accompanying drawings.

Description of drawings

Figure 1 is an exploded perspective view showing a known arrangement of a trim cover assembly for a seat back;

2 is a schematic perspective view of the novel device of the trim cover assembly of the seat back according to the present invention, showing the main part of the device in the back of the seat back;

Figure 3 is a schematic perspective view of the resulting seat back according to the present invention, showing a pocket provided on the back of the seat back, showing an example of receiving a larger book in the pocket;

4 is a partial cross-sectional view of the main part of the present invention, which shows a state in which the first rear cover portion is fixed to the rear surface of the seat back before the second rear cover portion is fixed to the rear surface of the seat back;

5 shows a partially cut-away cross-sectional view of the seat back according to the present invention, which shows a state in which the main part and the second rear cover part are fixed to the back of the seat back;

Figure 6 is a partially cutaway exploded perspective view of a female fastening assembly according to the present invention; and

Fig. 7 is a partial perspective view partially showing the main part of the present invention.

detailed description

Referring to Figures 2 to 7, one preferred mode of the device for the trim cover assembly for the seat back according to the present invention is shown.

Fig. 3 shows a car seat comprising a seat cushion SC and a seat back SB provided on its back SBr with a pocket P, wherein the pocket P is adapted to allow receiving in the pocket P items including books and map, and the seat back SB can be tilted forward and rearward relative to the seat cushion SC as is known in the art, but the seat back SB will be in a novel manner according to the invention structure. Reference numeral SBf designates the front of the seat back SB.

It will be noted that the words "forward", "front" or "forwardly" refer to the front F facing the front of the seat or seat back, while the words "rearward", "rearward" or "rearwardly" ” refers to the rear R facing the rear of the seat or seat back.

2, in the seat back SB of the present invention, a seat back frame 3 of a substantially rectangular configuration is provided, and the seat back frame 3 is composed of an upper frame member 3A, a pair of side frame members 3B and A lower frame member 3C is formed. In particular, as seen in Figure 4, each of the two lateral frame members 3B has a known channel cross-section defining therein: a first flange portion 3a, shown facing forward; A second flange portion 3b, which is shown facing rearward, wherein the first flange portion 3a and the second flange portion 3b protrude in a direction toward the seat back or the inside of the foam padding 4; and a frame body portion 3c , which is defined between said first flange portion 3a and second flange portion 3b, the frame body portion 3c is thus shown laterally facing the seat back.

According to the invention, as can be seen in FIGS. 4 and 7 , each of the two lateral frame members 3B is also formed with a groove-like male engaging end portion in its second flange portion 3b. More specifically, said male engaging end portion is a hook-shaped male engaging end portion 3d of substantially U-shaped cross-section, as shown, said hook-shaped male engaging end portion 3d engageable with anchoring elements 10a and 10b, As will be explained in detail below.

The foam padding 4 is formed into a shape substantially conforming to a predetermined contour of the seat back SB. As seen in Figures 2 and 5, the front face 4A of the foam padding 4 is configured with a central padding area and a pair of side cushion padding areas, as is known in the art, to properly support the seat occupant's back. On the other hand, the back surface 4B of the foam padding 4 is formed so as to define a recessed area 4Ba in a substantially central region thereof, and is arranged and supported by a spring 61 in the recessed area 4Ba to elastically support the seat occupant's back. , as known in the art.

According to the present invention, the lengths of the two lateral inner walls of the recessed area 4Ba of the foam packing 4 are substantially equal to the lengths of the two specific lateral frame members 3B respectively, and the two lateral inner walls are along the corresponding two The lateral frame members 3B extend adjacent to the respective two lateral frame members 3B. In addition, as can be understood from FIGS. 2 and 4 , a pair of stepped portions 4 b are respectively formed in both lateral inner walls of the recessed area 4Ba. More specifically, each stepped portion 4b is defined in an outwardly or rearwardly facing corner of each of the two lateral inner walls of the recessed area 4Ba of the foam padding, so that the pair of stepped portions 4b face each other. Arranged in paired and spaced relation on the back face 4B of the foam padding, and extending a length substantially equal to the total length of each of the two lateral frame members 3B. In this respect, in FIG. 2, only the right stepped portion 4b as formed in the right inner sidewall of the recessed area 4Ba of the foam packing is drawn, and the other left step portion 4b having substantially the same structure as the right stepped portion 4b is drawn. The stepped portion is hidden from view by the back center cover portion 11 . However, it will be understood that such a left stepped portion is actually formed in the left inner side wall of the recessed portion 4B. These two stepped portions 4b are adapted to respectively receive therein two female fastening elements 20, as will be explained below.

The seat back frame 3 is integrally embedded in the foam padding 4 such that substantially all of the second flange portion 3b of each of the two side frame members 3B of the seat back frame 3 is exposed to the bore 4c of the foam padding 4 In this case, the hook-shaped male engaging end portion 3d of the seat back frame 3 is also exposed in the recessed area 4Ba communicating with the bore 4c, as best shown in FIG. 7 . Note that said bore 4 c is essentially defined by the adjoining of the open sides 3 a and 3 b of the lateral frame members 3B with the recessed area 4Ba of the foam padding 4 .

The seat back SB of the present invention is substantially similar in construction to the previously described prior art seat back SB' in that a plurality of separate cover materials are stitched together to provide the three-dimensional trim shown. A cover assembly 1, the three-dimensional trim cover assembly 1 includes: an openable rear center cover portion 11 substantially defined in a central area of a rear surface 1A of a seat back SB; and a pocket P provided to the rear center cover portion 11, and also similar in that the foam padding 4 is covered with the trim cover assembly 1 with the seat back frame 3 integrally embedded in the foam padding 4 . Similar to the seat back SB' of the prior art, the openable rear cover portion 11 is only at its upper end continuously connected in one piece to the rear face 1A of the trim cover assembly and thus vertically movable relative to the upper end, This opens and closes the central area of the rear face 1A of the trim cover assembly, which allows the foam padding 4 to easily enter inside the trim cover assembly 1 and be placed integrally within the trim cover assembly 1 .

According to the present invention, the rear center cover portion 11 has a length substantially equal to the total length of each of the two side frame members 3B of the seat back frame 3, and another pair of rear cover portions 12 are arranged on the trim cover assembly. In the rear face 1A, thus located on opposite sides of the rear center cover portion 11 symmetrically with respect to the rear center cover portion 11 . Specifically, as can be seen in FIG. 2 , the left rear cover portion 12 is integrally formed in the left rear area of the trim cover assembly 1 so as to extend in a direction toward the inside of the rear surface SBr of the seat back. On the other hand, likewise, the right rear cover portion 12 is integrally formed in the right rear region of the trim cover assembly 1 so as to extend in a direction toward the inside of the back surface SBr of the seat back. The total lengths of both the left rear cover portion 12 and the right rear cover portion 12 are also substantially equal to the total lengths of the two lateral frame members 3B, respectively. It will also be appreciated that each of the two rear cover portions 12 can be folded or moved in a left-right direction towards and away from the rear center cover portion 11 .

Hereinafter, for simplicity, the rear center cover portion 11 will be referred to as a “first rear cover portion 11 ”, and each of the two rear cover portions 12 will be referred to as a “second rear cover portion 12 ”.

As can be seen in FIG. 2 , the two rear housing parts 12 are each provided with a male fastening plate 30 . The male fastening plate 30 is essentially simply formed of an elongated flat plate of hard synthetic resin material such as polypropylene, which extends linearly along its longitudinal direction for the total length of the second rear cover portion 12. equal in length, as best shown in Figure 2. It is thus concluded that the male fastening plate 30 has a length substantially equal to the total length of the lateral frame members 3B. Referring also to FIG. 4 , it is observed that the male fastening plate 30 is sewn to the reverse side of the free end portion 12 a of the second rear housing portion 12 along the reverse side of the free end portion 12 a and that the male fastening plate 30 One lateral end is aligned with the distal edge of the free end portion 12a.

As in the present invention, fixedly sewn to the respective two lateral ends of the first rear cover portion 11 along the respective two lateral ends thereof are a pair of anchor rods type of female fastening assembly 7 (as best seen in FIG. 2 ), said pair of female fastening assemblies 7 of the anchor rod type respectively cooperate with said two male fastening plates 30 to provide a novel fastener arrangement , the novel fastener arrangement allows both the first rear cover portion 11 and the second rear cover portion 12 to be attached neatly to the back side 4B of the foam padding, thereby making the back side 1A of the trim cover assembly 1 overall uniform and flat , without producing any irregular portion or any meandering portion in the rear surface 1A of the trim cover assembly 1 .

As clearly drawn in Figures 5 and 7, each of the two female fastening assemblies 7 comprises the following elements substantially in one piece:

a fixed base element 10 comprising two anchor portions (explained below) for enclosing the aforementioned male engaging end portion 3d engaging the seat back frame 3;

a female fastening element 20 which allows said male fastening plate 30 to securely engage with the female fastening element 20; and

A connection element 40 , which is connected between the fixed base element 10 and the female fastening element 20 .

Note that the above-mentioned fixed base element 10, female fastening element 20 and connecting element 40 are all formed of a hard synthetic resin material such as polypropylene, and the total length thereof is substantially equal to the total length of the side frame member 3B of the seat back frame 3 .

As shown, the fixed base element 10 of each female fastening assembly 7 is formed in an elongated manner extending along its longitudinal direction, and has a second protrusion substantially equal to the lateral frame member 3B or the lateral frame member 3B. The length of the total length of the edge portion 3b. The fixing base member 10 has the following parts integrally formed: a flat plate portion 10c; and a pair of first anchoring portions 10a and second anchoring portions 10b extending at right angles from the flat plate portion 10c, wherein the two anchoring portions Each of the portions 10a and 10b has a certain degree of elasticity while at the same time having the rigidity of the hard synthetic resin material itself. More specifically, as referring to FIG. 4 , the first anchoring portion 10a is configured to have a substantially arrow-shaped hook-shaped cross-section and extend at right angles from one end of the flat plate portion 10c. On the other hand, as referring to the cross-section in FIG. 4, the second anchor portion 10b extends from the flat plate portion 10c below the first anchor portion 10a, and is formed in an upwardly turned manner so as to go upward from the base portion integral with the flat plate portion 10c. curved and terminates in a horizontally extending end region 10bE. As can be appreciated from Figures 4, 6 and 7, both the first anchor portion 10a and the second anchor portion 10b extend along the entire length of the fixed base element 10 and are spaced apart from each other to define a generally "U" shape therebetween. Space. Thus, it will be appreciated that the generally "U" shaped space extends longitudinally along the entire length of the fixation base portion 10, defined between the two distal ends of the first anchor portion 10a and the second anchor portion 10b and The elongated openings communicate with the spaces. This substantially "U"-shaped space substantially corresponds in shape to the aforementioned groove-shaped male engagement end portion 3d of substantially "U"-shaped cross-section. Thus, as will be explained below, substantially all of the male engaging end portion 3d can be inserted into the elongated opening and then fit-engaged in the generally "U"-shaped space.

The female fastening element 20 is formed to have a generally "J"-shaped cross-section, and the female fastening element 20 includes a flat base portion 20a and a female engaging portion 20b. As shown in the figure, the female engagement portion 20b is formed to extend curvilinearly in a hairpin manner from one end of the flat base portion 20a and further extend in parallel with the flat base portion 20a, terminating in an inwardly protruding end. Portion 20c, defines an access space between the inwardly projecting end portion 20c and the flat base portion 20a. With this structure, an inner space is surrounded or defined by the flat base portion 20a, the female engaging portion 20b, and the inwardly protruding end portion 20c. In other words, the female engagement portion 20b has such a specific inner space defined therein and the entry space communicating with the inner space. With this arrangement, as will be explained below, both the male fastening plate 30 and one end of the second cover portion 12 fixed to the male fastening plate 30 can be inserted through the access space and engaged in said in the inner space.

The connecting element 40 is formed in a generally L-shaped configuration having: a vertical flat portion 40a; a first folded connection region 40b integrally defined in one end region of said vertical flat portion 40a; and a second Two folding connecting portions 40c extend horizontally or at right angles from the vertical flat portion 40a. As can be understood from Fig. 7, this connecting element 40 is shaped such that, firstly, a plate of hard synthetic resin material such as polypropylene is bent at its centreline to define an L-shaped body having a first half and a second half, And then, one-third of the first half is folded down and juxtaposed on a plane of the particular first half, thereby defining said first fold connection region 40b, while on the other hand, the second One-half of the two halves is folded and juxtaposed on the other planar half of the particular second half, thereby defining said second fold connection region 40c. Thus, it will be appreciated that the first folded connection area 40b extends vertically over the upper end area of the vertical flat portion 40a while at the same time extending longitudinally along the entire length of the connecting element 40, whereas the second folded connection area 40c is opposite. It extends vertically in the first folded connection region 40 b and at the same time also extends longitudinally along the entire length of the connection element 40 .

Referring now to FIG. 6, it will be drawn how the fixed base element 10, the female fastening element 20 and the connecting element 40 are put together to form the female fastening assembly 7 while simultaneously connecting the female fastening assembly 7 to the first cover part 11. The lateral ends are connected. Note here that there is indeed a pair of female fastening assemblies 7 as described above, and therefore, each of the two female fastening assemblies 7 should form a corresponding one of the two lateral ends of the first cover part 11. One connection, but for simplicity the description will be given with respect to only one female fastening assembly 7 and also with respect to only one lateral end of the first cover part 11 .

First, as indicated by arrow ①, one outer side of the flat plate portion 10c of the fixed base element 10 without the two anchor portions 10a and 10b thereon is juxtaposed along the first folded connection area 40b of the connecting element 40 at said first Fold over connection area 40b. The joining of these plate parts 10c and the vertically folded end regions 40b is then effected by sewing. The resulting suture connection can be seen in FIGS. 4 and 7 . Next, as indicated by arrow ②, one lateral end region 11a of the first cover part 11 is folded up and placed along the second folded end region 40c of the connecting element 40 on said second folded end region 40c . Then, the flat base portion 20a of the female fastening element 20 is juxtaposed on the lateral end region 11a of the first rear cover part 11 along said lateral end region 11a thus placed, as indicated by the arrow ③. Then, as shown in Figures 4 and 7, these flat base portions 20a and the two end regions 11a and 40c are all stitched together. As a result, a female fastening assembly 7 is formed, the second folded end region 40c is fixedly sewn together with a corresponding one of the lateral end regions 11a of the first rear cover portion 11, as best seen in FIGS. 2 and 7 .

Of course, the same steps as those described above should also be performed to form another female fastening assembly 7 and connect said female fastening assembly 7 to the other lateral end region of the first rear cover portion 11 so that a pair of Female fastening assemblies 7 are respectively fixedly provided to both lateral end regions of the first rear cover portion 11 , as shown in FIG. 2 .

With regard to the female fastening assembly 7 thus formed, as can be understood from FIG. 4, the distance between the first anchor portion 10a and the flat base portion 20a should be equal to or slightly smaller than that defined by the bore 4c, the inner wall region 4a and the stepped portion 4b. The thickness of the defined local regions of the foam padding 4 is important for obtaining an advantageous effect of the invention, as will be explained below.

Now, it will be explained how the seat back SB is completed by means of a first rear cover portion 11 provided with two female fastening assemblies 7 and two second cover portions 12 each having a male fastening plate 30 . In the following, for the sake of simplicity, only the area on the right side of the seat back SB, such as the right lateral end area of the first rear cover portion 11, the right Female fastening assembly 7 and second rear housing portion 12 on the right.

First, when the first rear cover portion 11 is attached to the back surface SBr of the seat back, as can be sequentially understood from FIGS. The entire distal end of the male engaging end portion 3d is first forcibly inserted into the elongated opening defined between the two distal ends of the first anchoring portion 10a and the second anchoring portion 10b. At this point, the second anchoring portion 10b is placed in the stepped portion 4d formed in the foam padding 4 near the male engaging end portion 3d of the lateral frame member 3, which facilitates connecting the two anchoring portions 10a and 10b to the male engaging end portion 3d. The engaging end portions 3d are easily engaged. Then, the entire male engaging end portion 3d is forcibly fit-engaged in the substantially “U”-shaped space defined between the first anchor portion 10a and the second anchor portion 10b. The positive engagement can be easily performed with low force because the first anchoring portion 10a and the second anchoring portion 10b can be easily and elastically moved away from each other to align the elongated opening and the generally "U" shape The space of both is relaxed enough to allow the insertion of the male joint end portion 3d, and can also automatically return to the corresponding original shape, so that the entire male joint end portion 3d is clamped in the two anchor portions 10a and 10b between and is tightly held between the two anchor portions 10a and 10b. As a result, as shown in FIG. 4, the two opposite sides 3d-1 and 3d-2 of the male joint end portion 3d closely contact the first anchoring portion 10a and the second anchoring portion 10b, respectively, and further, the second The horizontally extending end region 10bE of the anchor portion 10b closely contacts the second flange portion 3b of the lateral frame member 3B. Thus, it will be appreciated that the fixed base element 10 is fixedly fixed to the lateral frame member 3B against movement in any direction.

During the attachment of the fixed base element 10 to the lateral frame members 3B, the female fastening element 20 is automatically placed in the stepped portion 4b of the foam padding 4 and closely contacts said stepped portion 4b, while the fixed base element 10 The flat plate portion 10c also closely contacts the inner wall region 4a of the foam padding 4 . Thus, the right female fastening assembly 7 is firmly attached in the right rear area of the foam padding 4, while the right lateral end area of the first rear cover part 11 is also firmly held on the right side of the seat back SB on the backside area, as shown in Figure 4. In this respect, it is observed that an elongated opening L is defined between the folded end region 11 a of the first rear cover part 11 and the protruding end part 20 c of the female fastening element 20 , as can be seen in FIG. 4 . The size of the elongated opening L is designed to be substantially equal to or slightly greater than the thickness of the juxtaposition of the male fastening plate 30 and the end region 12a of the second cover part, so that both the male fastening plate 30 and the end region 12a can pass through The elongated opening L is inserted.

Next, although not shown, the left female fastening assembly 7 is firmly attached in the left rear area of the foam padding 4 in a similar manner to the above steps, while the left lateral side of the first rear cover portion 11 The end region is also firmly held on the left rear region of the seat back SB.

At this stage, it will be appreciated that the first rear cover portion 11 is easily and neatly secured in place to the back area 4B of the foam padding, with neither wrinkles nor imperfections in the first rear cover portion 11 itself. Irregularity, as can best be seen in Figure 3, is due to the fixed base element 10 of the female fastening assembly 7 as described above being positively connected to the lateral frame member 3 and through the lateral frame member 3 It is held against movement via the first anchoring portion 10a and the second anchoring portion 10b.

Finally, as can be understood sequentially from FIGS. 4 and 5 , the end region 12a of the second rear cover part 12 on the right and the male fastening plate 30 sewn to said end region 12a (the end region, so to speak, 12a and a stack of male fastening plates 30) are inserted through the elongated opening L defined between the folded end region 11a of the first back cover portion 11 and the protruding end portion 20c of the female fastening element 20, and then Placed in the inner space of the female fastening element 20, as shown in FIG. so as not to exercise. Therefore, the right second rear cover portion 12 is firmly and neatly attached to the left rear area of the seat back SB without any wrinkles and irregularities, so that the right second rear cover portion 12 runs along the second rear cover portion 12. The right lateral ends of a rear cover portion 11 extend side by side, as best seen in FIG. 3 . Although not shown, for the other second rear cover portion 12 on the left side, the same steps as those described above are performed so that the second rear cover portion 12 on the left side is firmly attached to the left side back of the seat back. area, as shown in Figure 3. As a result, both the first rear cover portion 11 and the second rear cover portion 12 are neatly fixed to the back of the seat back, as shown in FIG. 3 .

In said connection, preferably, the outer surface of the female engaging portion 20b of the female fastening element 20 is substantially flush with or slightly recessed from the outer surface of the first rear cover portion 11 so that making the two outer surfaces of the two second rear cover parts 12 respectively lie on the same plane as the outer surfaces of the first rear cover part 11, thereby providing a uniform and flat surface of the back of the seat back except for the pocket P, This gives the back of the seat back a better look.

Therefore, according to the present invention, it will be appreciated that the following effects and advantages are achieved:

(i) Even when the occupant strongly pulls the pocket P fixedly provided to the first rear cover portion 11 or inserts a large book or a plurality of books or articles into the pocket, the male fastening portions 30 engaged with each other and female fastening parts 20 will not produce deformations and irregularities, because the corresponding large outward force applied to the pocket P is directly transmitted to the two rigid parts 7 through the corresponding two female fastening components 7 In the lateral frame members 3B and 3B and dispersed in the two rigid lateral frame members 3B and 3B, the corresponding two female fastening assemblies 7 each include a first anchoring portion 10a and a second anchoring portion 10a Portion 10b, said first anchor portion 10a and second anchor portion 10b engage the male engaging end portion 3d of the lateral frame member 3B. Therefore, most of the larger force is distributed into the two rigid lateral frame members 3B, so that the male fastening portion 30 and the female fastening portion 20 engaged with each other do not receive the large force intensively and are therefore reliable. to prevent deformation. This in turn ensures prevention of wrinkled portions, slack portions and irregularities on the surfaces of the first cover portion 11 and the second cover portion 12, thus maintaining the aesthetic appearance of the back of the seat back.

(ii) The fixed base element 10 , the connecting element 40 and the female fastening element 20 are arranged to define a space in which there is a substantially channel cross-section, as can be seen in FIG. 4 . It will be appreciated that said space accommodates and maintains the local area of foam padding 4 defined by bore 4c, inner wall area 4a and stepped portion 4b. In particular, the flat plate portion 10c of the fixed base element 10 contacts a large part of the inner wall area 4a of the foam padding 4, while both the vertical plate portion 40a and the first folded end area 40b of the connecting element 40 rest against the entirety of said inner wall on area 4a. In fact, said inner wall area 4a and the adjacent area of the foam padding 4 can easily stretch or move towards the recessed area 4Ba due to their elastic and soft properties. However, the plate portion 10c and the vertical plate portion 40a of the connecting element 40 co-operate with each other to ensure the prevention of said The inner wall region 4a and the adjacent region of the foam padding 4 move. Thus, both the connecting element 40 and the female fastening element 20 ensure against falling off due to the mobility of the foam padding 4, thereby ensuring that the first rear cover part is not only secured without irregularities and wrinkles on its surface. 11 is kept in a uniformly elongated state, and the female fastening member 20 is kept in a predetermined position so that the male fastening plate 30 can be smoothly and precisely engaged with the female fastening member 20 along the female fastening member. 20 in.

Although the present invention has been described so far, it should be understood that the present invention is not limited to the illustrated embodiments, but that any modifications, additions and substitutions may be applied to the present invention without departing from the scope of the appended claims.

Claims (10)

1. A device for a trim cover assembly of a seat back, Wherein, the seat back includes a back face facing the rear of the seat back, and the seat back includes: foam padding formed into a shape substantially conforming to the outer contour of the seat back, The foam padding includes a back face corresponding to the back face of the seat back; a seat back frame disposed in the foam padding, the seat back frame including a pair of side frames and the trim cover assembly formed into a three-dimensional shape substantially conforming to the shape of the foam padding, the trim cover assembly covering the foam padding, Wherein, the trim cover assembly includes a back face corresponding to the back face of the seat back, and the trim cover assembly further includes: a first cover portion defined in the trim cover assembly In the back, so that only one end of the first cover portion is integral with the back of the trim cover assembly, so that the first cover portion can move toward and away from the one end relative to the one end. movement in the direction of the back of the foam padding, the first cover portion has a pair of lateral end regions; and a pair of second cover portions defined in the trim cover assembly Said rear face is thus arranged symmetrically with respect to said first cover part, wherein one of said pair of second cover parts comprises a free end region and the other of said pair of second cover parts One also includes a free end region so that the two free end regions of the pair of second cover portions are spaced apart from each other with respect to the first cover portion while simultaneously the entire length of the pair of lateral frame portions extends facing each other, wherein a pair of male fastening elements is provided respectively along said free end regions of said pair of second cover parts to said free end regions of said pair of second cover parts, Wherein, a pair of female fastening assemblies are respectively provided to the two lateral end regions of the first cover portion along the two lateral end regions of the first cover portion, the pair of the female fastening components each include an anchor element and a female fastening element, and wherein the anchoring member securely directly engages each of the pair of lateral frame portions of the seat back frame along each of the pair of lateral frame portions of the seat back frame , while the male fastening element securely engages the female fastening element along the female fastening element so as to securely attach the first cover portion to the back side of the foam padding, while at the same time The pair of second cover parts are also firmly attached to the back side of the foam padding, the two free end regions of the pair of second cover parts are respectively along the sides of the first cover part. The two lateral end regions adjoin the two lateral end regions of the first cover part. 2. The arrangement of trim cover assemblies of claim 1, wherein the first cover portion is provided with a pocket. 3. The device of the trim cover assembly according to claim 1, wherein each of the pair of male fastening elements is formed of a hard synthetic resin material capable of being stitched, wherein the pair of male fastening elements is formed by sewing connected to said free end regions of said pair of second cover portions respectively along said free end regions of said pair of second cover portions, wherein said pair of female fastening assemblies are also seamable is formed of a hard synthetic resin material, and wherein said pair of female fastening members are connected to said first cover portion respectively along said two lateral end regions of said first cover portion by sewing. Two lateral end regions. 4. The arrangement of trim cover assemblies according to claim 1, wherein said pair of side frame portions of said seat back frame each have a channel cross-section, said pair of side frame portions comprising a pair of flange portions, the pair of flange portions respectively extending along the pair of lateral frame portions, wherein one of the pair of flange portions has a free end region, and wherein the anchoring element Having a configuration and characteristics that allow the free end region of the one of the pair of flange portions to be inserted into the anchoring element and securely engage the anchoring element. 5. The arrangement of trim cover assemblies according to claim 4, wherein said free end region of said one of said pair of flange portions is formed in a generally "U" shaped cross-section to provide a generally "U" shape. U"-shaped end region, wherein each of said pair of female fastening assemblies includes a fixed base element to securely engage said generally "U"-shaped end region, said fixed base element having a A plate portion defined therein and the anchoring element, wherein the anchoring element includes a pair of first anchoring portions and second anchoring portions, the pair of first anchoring portions and second anchoring portions being formed such that A generally "U" shaped space is defined between the first anchoring portion and the second anchoring portion, said generally “U” shaped space being similar in shape to said substantially “U” shaped space of said one of said pair of flange portions. A U"-shaped end region corresponds, wherein said substantially "U"-shaped end region is inserted into said substantially "U"-shaped space and engageably fits in said substantially "U"-shaped space so that The fixed base member securely connects the one of the pair of flange portions associated with the seat back frame, thereby preventing movement, wherein the foam padding includes an inner wall therein, and wherein the The plate portion of the fixed base element is in contact with the inner wall. 6. The arrangement of trim cover assemblies according to claim 5, wherein said pair of female fastening assemblies, together with said plate portion of said pair of female fastening assemblies, said first anchor portion and said The second anchoring portions are also each formed of a hard synthetic resin material capable of being stitched together, and wherein the plate portions of the pair of female fastening components are stitched along the two sides of the first cover portion, respectively. A lateral end region is connected to the two lateral end regions of the first cover portion. 7. The assembly of trim cover assemblies of claim 1 , wherein each of said pair of male fastening elements includes a male fastening plate extending along said pair of second cover portions. said free end region of each of said pair of second cover portions is disposed to a free end region of each of said pair of second cover portions, wherein said pair of female fastening assemblies associated with each The female fastening element has a generally "J" shaped cross-section having: a flat base portion; and a female engagement portion extending from one end of the flat base portion at U and further extend in a substantially parallel relationship with the flat base portion, terminating in a protruding end portion facing toward the flat base portion, while the female engagement portion is in contact with the flat base portion Partially spaced such that the female fastening element has an opening defined between the protruding end portion and the planar base portion; and an interior space defined by the planar base portion. A base portion, said female engaging portion and said protruding end portion define, wherein said free end region of said second cover portion and said free end region of said second cover portion are provided with Both of the male fastening elements are inserted through the opening and securely engaged in the interior space so as to securely attach the pair of second cover portions to appropriate portions of the rear side of the foam padding. In a position, the free end regions of the pair of second cover parts respectively abut the two sides of the first cover part along the two lateral end regions of the first cover part towards the end region, and wherein the flat base portion of the female fastening element is in intimate contact with the outer surface of the back of the foam padding. 8. The arrangement of trim cover assemblies of claim 1, wherein each of said pair of female fastening assemblies includes a fixed base member to securely engage one of said pair of lateral frame portions, said fixed A base member has a plate portion and the anchor member integrally defined therein, wherein each of the pair of female fastening assemblies further includes a connecting member, wherein the plate portion and the anchor member of the fixed base member Female fastening elements are connected together via the connecting element, and wherein each of the fixed base element, the female fastening element and the connecting element has a The total length of each is equal in length. 9. The arrangement of trim cover assemblies according to claim 8, wherein said pair of female fastening assemblies, together with said plate portion, said anchor portion, said female fastening assembly of said pair of female fastening assemblies, The fastening element and the connecting element are each formed of a hard synthetic resin material capable of sewing, and wherein the plate portion is connected to the connecting element by sewing, and the female fastening element is also connected to the connecting element by sewing. the connecting elements. 10. The assembly of trim cover assemblies of claim 1, wherein said rear surface of said foam padding includes: an outer surface; defined adjacent each of said pair of lateral frame portions on said A region in the back of foam padding wherein each of the pair of female fastening assemblies includes a fixed base member to securely engage one of the pair of lateral frame portions, the fixed base member having an integral a plate portion and an anchoring element defined therein in a manner, the plate portion being in intimate contact with the region of the back side of the foam padding, wherein each of the pair of female fastening assemblies further includes a connecting element, said connection element has a first part and a second part, wherein said first part connects said plate part of said fixed base element while abutting against said area of said rear face of said foam padding, and Wherein said second portion connects said female fastening element while abutting against said outer surface of said rear face of said foam padding.