Back pocket core material and trim cover

Abstract

To achieve both of securing a knee clearance for a rear seat occupant and property of taking stuff in / out of a back pocket.SOLUTION: A core material 30 is inserted into a bag formed at the upper edge of a back pocket provided on the back surface of a seat back. This core material 30 comprises: a core material body 32 divided into a left part 32L disposed on the left side of the bag and a right part 32R disposed on the right side of the bag; an integral hinge 34 that rotatably connects the left part 32L and the right part 32R; and a lock 36 composed of a left lock 36R provided at the right end of the left part 32L and a right lock 36L provided at the left end of the right part 32R. The lock 36 can hold, through engagement between the right lock 36R and the left lock 36L, a front protrusion state where the core material body 32 protrudes and bend to a sheet front side in a seat vertical view and a rear protrusion state where the core material body 32 protrudes and bend to a sheet rear side in the a seat vertical view.SELECTED DRAWING: Figure 2

Description

[Technical Field]

[0001] The present invention relates to a trim cover for a vehicle seat, and more particularly to a back pocket padding material. [Background technology]

[0002] In the seatback pocket structure disclosed in Patent Document 1 below, the back surface of the seatback is formed to be concavely curved toward the front of the seat. A core material is inserted into a pouch formed at the upper edge of the back pocket provided on the back surface of the seatback. This core material is curved approximately equal to the curvature of the back surface of the seatback and has elasticity. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Japanese Utility Model Application Publication No. 4-7243 Summary of the Invention [Problem to be solved by the invention]

[0004] In the above-mentioned prior art, the core material allows the upper edge of the back pocket to be curved approximately equal to the curvature of the rear surface of the seatback, ensuring ample knee room for rear seat passengers. However, because the opening of the back pocket is forcibly pressed against the rear surface of the seatback, the back pocket must be manually opened. This leaves room for improvement in terms of improving the ease of putting items in and taking them out of the back pocket.

[0005] An object of the present invention is to provide a back pocket core and trim cover that can ensure knee room for rear seat passengers while also allowing items to be easily put in and taken out of the back pocket. [Means for solving the problem]

[0006] The back pocket core material of the first embodiment is a back pocket core material that is inserted into a bag portion formed at the upper edge of a back pocket provided on the back of the seat back of a vehicle seat, and is composed of a core material main body divided into a left portion located on the left side of the bag portion and a right portion located on the right side of the bag portion, a hinge portion that rotatably connects the left portion and the right portion, and a left lock portion provided at the right end of the left portion and a right lock portion provided at the left end of the right portion, and has a lock portion that can maintain the core material main body in a frontal collision state in which it is bent in a convex shape toward the front of the seat when viewed in the vertical direction of the seat, and in a rearward collision state in which it is bent in a convex shape toward the rear of the seat when viewed in the vertical direction of the seat, by engaging with the right lock portion and the left lock portion.

[0007] The back pocket core of the first aspect is inserted into a pouch formed at the upper edge of the back pocket on the back surface of the seatback of a vehicle seat. This core has a core body divided into a left part located on the left side of the pouch and a right part located on the right side of the pouch, a hinge part rotatably connecting the left part and the right part, and a lock part composed of a left lock part located at the right end of the left part and a right lock part located at the left end of the right part.

[0008] The above-mentioned locking portions are capable of maintaining a frontal collision state in which the core material body is bent convexly toward the front of the seat as viewed in the seat vertical direction, and a rearward collision state in which the core material body is bent convexly toward the rear of the seat as viewed in the seat vertical direction, by engaging the right locking portion and the left locking portion. In the frontal collision state, the rear seat passengers can have ample knee room, and in the rearward collision state, the ease of putting things in and taking things out of their back pockets can be improved. Furthermore, when the right locking portion and the left locking portion are not engaged, the core material body can be in its normal state, where it does not bend as described above.

[0009] The core material of the back pocket of the second aspect is configured such that in the first aspect, the recesses and protrusions formed in the right locking portion and the recesses and protrusions formed in the left locking portion fit together in the locking portion, and frictional force is generated between the right locking portion and the left locking portion, thereby maintaining each of the above states.

[0010] In the back pocket core of the second aspect, the recesses and protrusions formed on the right locking section and the recesses and protrusions formed on the left locking section fit together, generating friction between the right locking section and the left locking section, thereby holding the core body in the forward and rearward collision states. This allows the core body to be held in the forward and rearward collision states with a simple structure.

[0011] The back pocket core of a third aspect is the first or second aspect, wherein the hinge portion is an integral hinge that integrally connects the left side portion and the right side portion.

[0012] In the back pocket core of the third aspect, the left and right portions of the core body are integrally connected by an integral hinge, which simplifies the structure of the core.

[0013] The trim cover of the fourth aspect is placed over the pad of the seat back of a vehicle seat and has a back pocket placed on the back surface of the seat back, and is equipped with a cover body having a bag portion formed at the upper edge of the back pocket, and a back pocket core material of any one of the first to third aspects inserted into the bag portion.

[0014] In the trim cover of the fourth aspect, the cover body that covers the pad of the seat back of a vehicle seat has a back pocket that is placed on the back surface of the seat back. A back pocket core is inserted into a bag portion formed at the upper edge of the back pocket. This core is one of the first to third aspects, so the above-mentioned effects can be obtained. [Effects of the Invention]

[0015] As described above, according to the present invention, it is possible to ensure sufficient knee room for rear seat passengers while also making it easy to put things in and take things out of the back pockets. [Brief explanation of the drawings]

[0016] [Figure 1] 1 is a perspective view showing a vehicle seat provided with a trim cover according to an embodiment; [Figure 2] FIG. 2 is a first perspective view showing a core material of a back pocket according to an embodiment. [Figure 3] FIG. 2 is a second perspective view showing the core material. [Figure 4] FIG. [Figure 5] FIG. 2 is a plan view showing the normal state of the core material. [Figure 6] FIG. 10 is a plan view showing the core member in a forward protruding state. [Figure 7] FIG. 10 is a plan view showing the core member in a rear-impact state. DETAILED DESCRIPTION OF THE INVENTION

[0017] A trim cover 20 according to one embodiment of the present invention will be described below with reference to Figures 1 to 11. Note that in each figure, some reference numerals may be omitted to make the drawings easier to understand. Arrows FR, LH, RH, and UP, which are appropriately shown in each figure, respectively indicate the front, left, right, and top of a vehicle seat 10 equipped with the trim cover 20 according to this embodiment. Hereinafter, when the front-rear, left-right, top-bottom directions are used in the description, they will indicate directions relative to the vehicle seat 10.

[0018] As shown in FIG. 1, a vehicle seat 10 equipped with a trim cover 20 according to this embodiment includes a seat cushion 12 on which an occupant sits, a seat back 14 that supports the occupant's back, and a headrest 16 that supports the occupant's head. The vehicle seat 10 is, as an example, a front seat of a vehicle. The seat cushion 12 is connected to the floor of the vehicle body via a seat slide mechanism (not shown). The lower end of the seat back 14 is connected to the rear end of the seat cushion 12 via a reclining mechanism (not shown). The headrest 16 is connected to the upper end of the seat back 14 so that its vertical position can be adjusted.

[0019] The trim cover 20 that forms the surface of the seat back 14 covers the pad 18 that forms the cushioning material of the seat back 14, and the pad 18 is attached to a frame (not shown) that forms the skeleton of the seat back 14. The frame is made of, for example, pressed metal plates or bent metal pipes joined together. The pad 18 is made of a foam such as urethane foam, and is placed over the frame from above.

[0020] The trim cover 20 includes a cover body 22 formed into a bag shape by sewing together multiple sheets of upholstery material, such as fabric, leather, or synthetic leather. The cover body 22 is placed over the pad 18 from above. A back pocket 24 is provided in the cover body 22 at the bottom of a back surface portion 22A that forms the back surface of the seat back 14. The back pocket 24 is formed from a rectangular upholstery material made of the same material as the above-mentioned upholstery material, and both left and right edges and a bottom edge are sewn to the other upholstery material of the cover body 22. Small items can be stored inside the back pocket 24.

[0021] The upper edge of the back pocket 24 is folded in half and sewn to form a tubular bag portion 24A extending in the left-right direction. A core material 30 is inserted into this bag portion 24A. This core material 30 corresponds to the "back pocket core material" in this invention. As shown in Figures 2 and 3, the core material 30 has a long, approximately rectangular rod shape with the left-right direction as the longitudinal direction. Note that Figure 1 shows the core material 30 in a schematic manner.

[0022] This core 30 is manufactured, for example, by resin injection molding, and includes a core body 32 divided into a left portion 32L located on the left side of the bag portion 24A and a right portion 32R located on the right side of the bag portion 24A, an integral hinge 34 integrally connecting the left portion 32L and the right portion 32R, and a locking portion 36 composed of a left locking portion 36L provided at the right end of the left portion 32L and a right locking portion 36R provided at the left end of the right portion 32R. The integral hinge 34 corresponds to the "hinge portion" in this invention. The locking portion 36 is provided in the center of the core 30 in the left-right direction.

[0023] The left end of the left portion 32L and the right end of the right portion 32R have inclined surfaces 38L and 38R formed on their respective front surfaces, so that the left end of the left portion 32L is thinner in the front-to-rear direction as it extends leftward, and the right end of the right portion 32R is thinner in the front-to-rear direction as it extends rightward.

[0024] 4, in the locking portion 36, the recesses and protrusions formed on the right locking portion 36R and the recesses and protrusions formed on the left locking portion 36L fit together. The right locking portion 36R has two plate-like portions 40, 42 arranged at a distance in the vertical direction. The two plate-like portions 40, 42 are plate-shaped with the thickness direction extending in the vertical direction, and a gap 44 is formed between the two plate-like portions 40, 42.

[0025] The left locking portion 36L has three plate-like portions 46, 48, 50 arranged at intervals in the vertical direction. The three plate-like portions 46, 48, 50 are plate-shaped with the thickness direction in the vertical direction, and gaps 52, 54 are formed between the three plate-like portions 46, 48, 50, respectively. The two plate-like portions 40, 42 formed on the right locking portion 36R are sandwiched between the two gaps 52, 54 formed in the left locking portion 36L, and the one plate-like portion 48 formed on the left locking portion 36L is sandwiched between the gap 44 formed in the right locking portion 36R.

[0026] The gap 44 formed in the right locking portion 36R extends further to the right than the two plate-shaped portions 40, 42 formed in the right locking portion 36R. A thin portion 56 that is thin in the front-to-rear direction is provided at the back of this gap 44. This thin portion 56 is integrally connected to other portions of the right portion 32R. The tip of the one plate-shaped portion 48 formed in the left locking portion 36L is integrally connected to the thin portion 56 via an integral hinge 34. This integral hinge 34 rotatably connects the left portion 32L and the right portion 32R of the core body 32 around an axis that extends in the up-down direction. The core 30 is bendable around this integral hinge 34 as a rotation center.

[0027] The core 30 configured as described above is capable of assuming three states: a normal state (state shown in FIG. 5) in which the left portion 32L and the right portion 32R of the core body 32 extend linearly in the left-right direction; a front-impact state (state shown in FIG. 6) in which the left portion 32L and the right portion 32R are bent so as to convex forward when viewed in the vertical direction; and a rear-impact state (state shown in FIG. 7) in which the left portion 32L and the right portion 32R are bent so as to convex backward when viewed in the vertical direction. This core 30 is configured to maintain each of the normal state, the front-impact state, and the rear-impact state by generating frictional forces between the three plate-like portions 46, 48, 50 formed on the left locking portion 36L and the two plate-like portions 40, 42 formed on the right locking portion 36R.

[0028] In the normal state, the upper edge of the back pocket 24 extends linearly in the left-right direction. In the frontal collision state, the upper edge of the back pocket 24 bends in a convex shape toward the front side when viewed in the vertical direction, thereby expanding the knee room of rear seat occupants (not shown) toward the front side of the vehicle. In the rearward collision state, the upper edge of the back pocket 24 bends in a convex shape toward the rear side when viewed in the vertical direction, thereby expanding the upper end opening of the back pocket 24 in the front-to-rear direction.

[0029] Next, the operation and effects of this embodiment will be described. In this embodiment, the cover body 22 constituting the cover of the seat back 14 of the vehicle seat 10 has a back pocket 24 arranged on the rear surface of the seat back. A core material 30 is inserted into a bag portion 24A formed at the upper edge of the back pocket 24. The core material 30 has a core material main body 32, an integral hinge 34, and a lock portion 36.

[0030] The core body 32 is divided into a left portion 32L located on the left side of the bag portion 24A and a right portion 32R located on the right side of the bag portion 24A, and the left portion 32L and the right portion 32R are integrally connected by an integral hinge 34. The locking portion 36 is composed of a left locking portion 36L provided at the right end of the left portion 32L and a right locking portion 36R provided at the left end of the right portion 32R.

[0031] In this locking portion 36, the right locking portion 36R and the left locking portion 36L are engaged with each other to maintain the left and right portions 32L, 32R, 32L of the core body 32 in a normal state extending linearly in the left-right direction, the frontal collision state in which the core body 32 is bent so as to convex forward as viewed in the vertical direction, and the rearal collision state in which the core body 32 is bent so as to convex rearward as viewed in the vertical direction. In the frontal collision state, ample knee room can be ensured for rear seat occupants, and in the rearal collision state, the ease of putting things in and taking things out of the back pocket 24 can be improved.

[0032] In addition, in the locking portion 36, the recesses and projections formed on the right locking portion 36R and the recesses and projections formed on the left locking portion 36L fit together, and frictional force is generated between the right locking portion 36R and the left locking portion 36L, thereby maintaining each of the above states. This makes it possible to maintain each of the above states with a simple configuration.

[0033] Furthermore, in the core 30, the left portion 32L and the right portion 32R of the core body 32 are integrally connected by the integral hinge 34, so that the core 30 can be completed with a single part, simplifying the configuration of the core 30. Furthermore, the core 30 can be molded, for example, using a top and bottom punching mold, eliminating the need for a sliding mold, and therefore can be manufactured inexpensively.

[0034] In the above embodiment, the integral hinge 34 is described as the "hinge portion" of the present invention, but the present invention is not limited to this. The "hinge portion" of the present invention may have a connecting shaft that rotatably connects the left and right portions of the core body.

[0035] In the above embodiment, the locking portion 36 is configured such that the recesses and protrusions formed on the right locking portion 36R and the recesses and protrusions formed on the left locking portion 36L fit together, generating friction between the right locking portion 36R and the left locking portion 36L. However, this is not limiting. The "locking portion" of the present invention may be configured to maintain the above states by, for example, a portion of the right locking portion and a portion of the left locking portion engaging with each other. In this case, the above-described engagement is released by, for example, elastic deformation of a portion of the right locking portion or a portion of the left locking portion.

[0036] In addition, the present invention can be implemented with various modifications within the scope of the gist thereof. Furthermore, it goes without saying that the scope of the rights of the present invention is not limited to the above-described embodiment. [Explanation of symbols]

[0037] 10 Vehicle seats 14 Seat back 18 pads 20 Trim cover 22 Cover body 24 back pocket 24A Bag section 30 Core material 32 Core body 32L left side part 32R right side part 34 Integral hinge (hinge part) 36 Rock Club 36L left lock 36R Right lock

Claims

1. A back pocket core material to be inserted into a bag portion formed at an upper edge of a back pocket provided on a rear surface of a seat back of a vehicle seat, a core body divided into a left portion disposed on the left side of the bag portion and a right portion disposed on the right side of the bag portion; a hinge portion rotatably connecting the left portion and the right portion; a locking portion configured by a left locking portion provided at the right end of the left portion and a right locking portion provided at the left end of the right portion, wherein engagement between the right locking portion and the left locking portion can hold the core material body in a frontal collision state in which it is bent so as to convex toward the front side of the seat as viewed in the seat vertical direction, and in a rearward collision state in which it is bent so as to convex toward the rear side of the seat as viewed in the seat vertical direction; Back pocket interlining.

2. 2. The back pocket core material according to claim 1, wherein the locking portion is configured such that the recesses and protrusions formed in the right locking portion and the recesses and protrusions formed in the left locking portion fit together, and a frictional force is generated between the right locking portion and the left locking portion, thereby maintaining each of the states.

3. 3. The back pocket core according to claim 1, wherein the hinge portion is an integral hinge that integrally connects the left portion and the right portion.

4. a cover body that covers a pad of a seat back of a vehicle seat and has a back pocket that is disposed on a back surface of the seat back, the back pocket having a bag portion formed at an upper edge thereof; The back pocket core material according to claim 1 or 2, inserted into the bag portion; Trim cover with.

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