CN110254309B - Vehicle seat - Google Patents

Vehicle seat Download PDF

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Publication number
CN110254309B
CN110254309B CN201910149383.1A CN201910149383A CN110254309B CN 110254309 B CN110254309 B CN 110254309B CN 201910149383 A CN201910149383 A CN 201910149383A CN 110254309 B CN110254309 B CN 110254309B
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China
Prior art keywords
skin
skin member
sewn
seat
pad
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CN201910149383.1A
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CN110254309A (en
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川岛浩男
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Tachi S Co Ltd
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Tachi S Co Ltd
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Publication of CN110254309A publication Critical patent/CN110254309A/en
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    • BPERFORMING OPERATIONS; TRANSPORTING
    • B60VEHICLES IN GENERAL
    • B60NSEATS SPECIALLY ADAPTED FOR VEHICLES; VEHICLE PASSENGER ACCOMMODATION NOT OTHERWISE PROVIDED FOR
    • B60N2/00Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles
    • B60N2/58Seat coverings
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B60VEHICLES IN GENERAL
    • B60NSEATS SPECIALLY ADAPTED FOR VEHICLES; VEHICLE PASSENGER ACCOMMODATION NOT OTHERWISE PROVIDED FOR
    • B60N2/00Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles
    • B60N2/58Seat coverings
    • B60N2/5816Seat coverings attachments thereof

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  • Engineering & Computer Science (AREA)
  • Aviation & Aerospace Engineering (AREA)
  • Transportation (AREA)
  • Mechanical Engineering (AREA)
  • Seats For Vehicles (AREA)

Abstract

The subject of the invention is to prevent wrinkles from being generated on a surface material covering a surface of a portion where groove portions of a urethane pad intersect in a seat back or a seat cushion of a vehicle seat. According to the present invention, the portion of the seating portion where the first skin member and the second skin member are sewn is embedded in the groove portion formed in the urethane pad of the seating portion, the sewn first and second skin members of the seating portion are sewn to the skin member of the skin portion covering the surface of the polyurethane pad of the bank portion, respectively, and the portions of the seating portion where the first and second skin members and the skin member of the bank portion are sewn are embedded in the groove portions formed between the polyurethane pad of the seating portion and the polyurethane pad of the bank portion, a member reinforcing the first skin member and the second skin member of the seating portion is sewn into both sides of a portion of the seating portion where the first skin member and the second skin member of the seating portion and the skin member of the bank portion are sewn.

Description

Vehicle seat
Technical Field
The present invention relates to a vehicle seat, and more particularly to a vehicle seat having a structure in which a surface of a urethane pad is covered with a trim cover that is a skin member.
Background
There is a vehicle seat having a structure in which a cushioning urethane pad is attached to a metal frame and the surface thereof is covered with a trim cover serving as a skin material.
In such a configuration, the skin material covering the surface of the polyurethane pad is cut out in a plurality of pieces, sewn together to form the skin material, and the sewn portion is embedded in a groove portion formed in the polyurethane pad, and connected to an insertion wire embedded in the bottom of the groove portion by a C-ring (Hog ring) to be attached to the polyurethane pad.
Patent document 1 describes a seat back formed in this manner.
Documents of the prior art
Patent document
Patent document 1: japanese examined patent publication (Kokoku) No. 5-31981
Disclosure of Invention
Problems to be solved by the invention
When the seat back is viewed, a groove portion for embedding and fixing a sewn portion of a skin material is formed at a connecting portion between a portion of the urethane pad corresponding to the bank portion of the seat back supporting the upper half of the seated person and a portion of the urethane pad corresponding to the seat back supporting the upper half of the seated person. In addition, in the seat back, a groove portion is formed in the lateral direction in order to prevent the skin from being displaced, and the sewn portion of the skin material is buried and fixed in the groove portion.
In the portion where the groove portion formed between the bank portions and the groove portion formed on the seat back side intersect, a portion where the skin material is supported by the urethane cushion is largely lacking. As a result, wrinkles may be generated in the cover material covering the portion of the urethane pad where the support is missing, and the appearance of the seat back may be impaired.
In contrast, patent document 1 discloses a structure in which a ridge portion protruding in the width direction of a groove is provided at an end edge of the groove of a urethane pad to prevent the occurrence of a gap.
However, even if the end edge of the groove of the urethane pad is provided with the ridge portion, the portion where the groove portion formed between the bank portions and the groove portion formed on the seatback side intersect cannot be covered with the ridge portion, and the portion where the skin material is supported by the urethane pad is largely lacking.
As a result, it is difficult to prevent the skin member from being wrinkled at a portion where the skin material is largely absent in a portion where the polyurethane pad supports the skin material, and there is a possibility that the appearance quality of the seat back is deteriorated.
In addition, the same problem may occur in the seat cushion.
The present invention has been made to solve the above-described problems of the prior art, and an object of the present invention is to provide a vehicle seat in which wrinkles can be prevented from being generated in a skin material covering a surface of a portion where groove portions of a urethane pad intersect with each other in a seat back or a seat cushion of the vehicle seat.
Means for solving the problems
In order to solve the above-mentioned problems, in the present invention, in a vehicle seat equipped with a seat cushion and a seat back, at least either one of the seat cushion and the seat back is equipped with a seat portion on which an occupant sits and a bank portion that supports both sides of the seat portion, the seat portion has a polyurethane pad and a skin portion that covers a surface of the polyurethane pad, the bank portion has a polyurethane pad that supports both sides of the seat portion and a skin portion that covers a surface of the polyurethane pad, the skin portion of the seat portion is formed by sewing a plurality of skin members in a direction crossing the seat portion, a portion in which a first skin member and a second skin member are sewn, among portions in which the plurality of skin members are sewn, is embedded in a groove portion formed in the polyurethane pad in a direction crossing the seat portion, and the first skin member and the second skin member of the seat portion, which are sewn, are respectively associated with the skin member of the skin portion that covers the surface of the polyurethane pad of the bank portion The pad is sewn, and a portion where the first skin member and the second skin member of the seating portion and the skin member of the bank are sewn is buried in a groove portion formed between the polyurethane pad of the seating portion and the polyurethane pad of the bank, and a member reinforcing the first skin member and the second skin member of the seating portion is sewn on both sides of the portion where the first skin member and the second skin member of the seating portion and the skin member of the bank are sewn.
In order to solve the above-described problems, according to the present invention, in a vehicle seat including a seat cushion and a seat back, at least one of the seat cushion and the seat back includes a seat portion in which a surface of a urethane pad is covered with a skin portion and on which a rider sits, and a bank portion supporting both sides of the seat portion and in which the surface of the urethane pad is covered with the skin portion, the skin portion of the seat portion includes a first skin member and a second skin member, the first skin member and the second skin member are sewn together, a portion in which the first skin member and the second skin member are sewn together is embedded in a first groove portion of the urethane pad formed in the seat portion in a direction crossing the seat portion, the first skin member and the second skin member of the seat portion are sewn together with the skin member of the skin portion of the urethane pad covering the bank portion, and the first skin member and the second skin member of the seat portion and the portion in which the skin member of the bank portion are sewn together And a member that is embedded in a second groove portion formed between the polyurethane pad on the seat portion side and the polyurethane pad on the bank portion side, and that reinforces the first skin member and the second skin member of the seat portion at a portion where the first groove portion and the second groove portion intersect, which is covered by the first skin member and the second skin member of the seat portion that are sewn.
ADVANTAGEOUS EFFECTS OF INVENTION
According to the present invention, in the seat back or the seat cushion of the vehicle seat, it is possible to prevent wrinkles from being generated in the skin material covering the surface of the portion where the plurality of groove portions formed in the urethane pad intersect, and it is possible to stably maintain the appearance quality of the vehicle seat.
Drawings
Fig. 1 is a perspective view showing an appearance of a vehicle seat according to embodiment 1 of the present invention.
Fig. 2 is a perspective view of the polyurethane gasket in a state where a portion a encircled in fig. 1 is shown with a skin covering the surface removed.
Fig. 3A is a plan view showing a state before sewing of the skin member 1211 covering the surface of the urethane pad 121 of the vehicle seat according to embodiment 1 of the invention.
Fig. 3B is a plan view showing a state before sewing of a skin member 1221 covering the surface of the urethane pad 122 of the vehicle seat according to embodiment 1 of the invention.
Fig. 3C is a plan view showing a state before sewing of the skin member 1231 covering the surface of the urethane pad 123 of the vehicle seat according to embodiment 1 of the present invention.
Fig. 4 is a perspective view showing the skin member 1211 and the skin member 1221 in a state where the skin member 1211 covering the surface of the urethane pad 121 and the skin member 1221 covering the surface of the urethane pad 122 are sewn along the broken line 128 in a state where the skin member 1211 and the skin member 1221 are overlapped according to the vehicle seat of embodiment 1 of the present invention, and the skin member 1211 and the skin member 1221 are opened.
Fig. 5 is a perspective view showing the skin member 1211 and the skin member 1221 in a state in which the skin member 1211 covering the surface of the urethane pad 121 and the skin member 1221 covering the surface of the urethane pad 122 are sewn and opened, and then the protrusion portions 1212 and 1222 are opened to overlap the skin member 1211 and the skin member 1221, respectively, of the vehicle seat according to embodiment 1 of the present invention.
Fig. 6 is a perspective view showing the skin member 1211 and the skin members 1221, 1231 in a state of overlapping with the skin member 1231 covering the surface of the urethane pad 123 and being sewn along the broken line 129 in a state where the skin member 1211 covering the surface of the urethane pad 121 and the skin member 1221 covering the surface of the urethane pad 122 of the vehicle seat according to embodiment 1 of the present invention are sewn and opened, and further the projection portions 1212 and 1222 are opened.
Fig. 7 is a perspective view showing the skin member 1211 and the skin member 1221, the skin member 1231 in a state where the skin member 1231 of the vehicle seat according to embodiment 1 of the present invention is opened from the skin member 1211 and the skin member 1221 along the sewn broken line 129.
Fig. 8 is a plan view of a portion a encircled with a circle of fig. 1 showing a state in which the urethane pads 121, 122, 123 are covered by the skin member 1211, the skin member 1221, and the skin member 1231 that are sewn and assembled with each other of the vehicle seat according to embodiment 1 of the present invention.
Fig. 9A is a plan view showing a state before sewing of a skin member 2211 covering the surface of the urethane pad 121 of the vehicle seat according to embodiment 2 of the present invention.
Fig. 9B is a plan view showing a state before sewing of the skin member 2221 covering the surface of the urethane pad 122 of the vehicle seat according to embodiment 2 of the invention.
Fig. 10 is a perspective view showing the surface member 2211 and the surface member 2221 in a state where the surface member 2211 covering the surface of the urethane pad 121 and the surface member 2221 covering the surface of the urethane pad 122 are sewn along the broken line 228 in a state where the surface member 2211 and the surface member 2221 are overlapped, and then the surface member 2211 and the surface member 2221 are opened, of the vehicle seat according to embodiment 2 of the present invention.
Fig. 11 is a perspective view of the skin member 1211, the skin member 1221, and the skin member 1231 showing a state in which the skin member 2211 covering the surface of the urethane pad 121 and the skin member 2221 covering the surface of the urethane pad 122 of the vehicle seat according to embodiment 2 of the present invention are sewn along the broken line 228, opened, overlapped with the skin member 1231 covering the surface of the urethane pad 123, and padded with the cloths 2212 and 2222 and sewn along the broken line 129.
Fig. 12 is a perspective view showing the skin members 2211 and 2221, and the skin member 2231 in a state where the skin member 1231 of the vehicle seat according to embodiment 2 of the present invention is opened from the skin member 2211 and 2221 along the sewn broken line 229.
Fig. 13 is a plan view showing a portion corresponding to a circled portion a of fig. 1 in a state where the urethane pads 121, 122, 123 are covered by the skin member 2211, the skin member 2221, and the skin member 1231 which are sewn and assembled with each other of the vehicle seat according to embodiment 2 of the present invention.
Detailed Description
The present invention relates to a vehicle seat in which a seat back or a seat cushion is provided with a measure for preventing wrinkles from being generated in a skin material covering a surface of a polyurethane pad at a portion where groove portions of the polyurethane pad intersect.
Embodiments of the present invention will be described in detail below with reference to the drawings. In all the drawings for describing the present embodiment, the same reference numerals are given to portions having the same functions, and redundant description is omitted in principle.
However, the present invention is not limited to the description of the embodiments shown below, and those skilled in the art will readily understand that the specific configuration may be modified without departing from the spirit and scope of the present invention.
Example 1
Next, a first embodiment of the present invention will be described with reference to fig. 1 to 8.
Fig. 1 is a perspective view showing an appearance of a vehicle seat 100 according to the present embodiment.
Reference numeral 110 is a seat back, 111 is a seat back-side seating portion, 112 is a seat back-side bank portion provided on both sides of the seat back- side seating portion 111, 130 is a seat cushion, 131 is a seat cushion-side seating portion, and 132 is a seat cushion-side bank portion provided on both sides of the seat cushion-side seating portion 131.
On the seat back 110 side, a sewn portion 113 extending in the lateral direction (the direction crossing the seating portion 111) of a skin member covering the surface of the seating portion 111 on the seat back side and a sewn portion 114 extending in the longitudinal direction (the up-down direction of the seating portion 111) are formed. Likewise, at the seat cushion 130 side, there are formed sewn portions 133 in the lateral direction and sewn portions 134 in the longitudinal direction of the skin member covering the surface of the seating portion 131 at the seat cushion side. The skin member here is a member covering the surface of a urethane pad generally used in a vehicle seat, and is composed of three layers of a skin material, an intermediate pad material, and a lining fabric, for example. The lining material is formed thicker than the skin material and lining cloth by using polyurethane or the like.
Next, an example in which the present invention is applied to the seat back 110 will be described.
Fig. 2 shows a state where a portion a encircled in fig. 1 is a skin member covering the surface of the skin member and the underlying urethane pad is exposed.
Groove portions 124 for inserting the sewn portions 113 of the skin member in the lateral direction are formed in the urethane pads 121 and 122 of the seating portion 111 on the seat back side. A wire 127 is embedded in a lower portion of the groove portion 124, and the wire 127 is used to fix the sewn portion 113 of the skin member in the lateral direction by a fastener such as a C-ring not shown in the figure.
On the other hand, between the urethane pads 121 and 122 of the seating portion 111 on the seat back side and the urethane pad 123 of the bank portion 112, a groove portion 125 for inserting the sewn portion 114 in the longitudinal direction of the skin member therein is formed.
A relatively large space is formed at an intersection portion 126 where the groove portion 124 formed in the urethane pads 121 and 122 of the seating portion 111 on the seat back side and the groove portion 125 formed between the urethane pads 121 and 122 of the seating portion 111 on the seat back side and the urethane pad 123 of the bank portion 112 intersect.
Fig. 3A is a view of the skin member 1211 covering the surface of the urethane pad 121 of the seating portion 111 on the seat back side as viewed from the inside. The hanging member 1214 to which the core member 1215 for fixing the core member 1215 to the wire 127 embedded in the groove portion 124 of the urethane packing by a fixing member such as a C-ring, not shown, is attached is sewn to the skin member 1211 along the broken line 1216. A protrusion 1212 is formed at an upper end of the skin member 1211.
Fig. 3B is a view of the skin member 1221 covering the surface of the urethane pad 122 of the seating portion 111 on the seat back side as viewed from the inside. At the upper end of the skin member 1221, a protrusion 1222 corresponding to the protrusion 1212 on the skin member 1211 side is formed.
In fig. 3C, a skin member 1231 covering the surface of the bank 112 on the seat back side is shown.
Next, a process of sewing and integrating these skin members 1211, 1221, and 1231 to form a skin member covering the surface of the urethane pad 121, 122, or 123 will be described with reference to fig. 4 to 8.
Fig. 4 shows a state in which the surface on the front side (back side in fig. 3A and 3B) faces each other when the skin member 1211 shown in fig. 3A and the skin member 1221 shown in fig. 3B are covered with the urethane pads 121 and 122, the vicinities of the ends (hereinafter, referred to as ends) 1213 and 1223 are sewn along the broken line 128, and then the skin member 1211 and the skin member 1221 are left-right opened with respect to the sewn portion (broken line 128). The sewn portion 113 is formed by a portion (broken line 128) where the skin member 1211 and the skin member 1221 are sewn.
When the protrusions 1212 and 1222 are opened, the skin member 1211 and the skin member 1221 sewn in this manner are in the state shown in fig. 5. Fig. 5 shows a state in which the protrusion 1212 and the protrusion 1222 are opened to positions overlapping with the skin member 1211 and the skin member 1222, respectively.
In the state where the protrusions 1212 and 1222 are opened in this manner, the surface of the urethane pad 123 covering the bank cloth 112 on the front side faces the surface of the skin member 1211 and the surface of the skin member 1221 on the front side, and the skin member 1231 covering the surface of the bank cloth 112 on the seat back side is overlapped. In this overlapped state, the vicinity of the end (hereinafter, referred to as end) 1217 of the skin member 1211 and the vicinity of the end 1232 of the skin member 1231, and the vicinity of the end 1224 of the skin member 1221 and the vicinity of the end 1232 of the skin member 1231 are sutured along the broken line 129.
Fig. 6 shows the state of such sewing. The projection 1212 and the projection 1222 opened to the position where the skin member 1211 overlaps the skin member 1221 are sewn to the skin member 1211 and the skin member 1221, respectively, along the broken line 129, and further to the skin member 1231.
Next, fig. 7 shows a state in which the skin member 1231 is opened with the stitched broken line 129 as the center, in a state in which the skin member 1211, the skin member 1221, and the skin member 1231 are stitched as shown in fig. 6. End 1217 of skin member 1211, end vicinity 1224 of skin member 1221, and end vicinity 1232 of skin member 1231 sewn at the portion indicated by broken line 129 are raised with respect to skin member 1211, skin member 1221, and skin member 1231, respectively. The portion of the skin member 1211 and the skin member 1231 that are sewn and the portion of the skin member 1221 and the skin member 1231 that are sewn, which are indicated by the broken line 129, form the sewn portion 114.
In this state, the ends 12121, 12221 of the projection 1212 and the projection 1222 are sewn to the skin member 1211 or the skin member 1221, respectively, along the broken line 129, and further to the skin member 1231. As a result, the projection 1212 and the projection 1222 have relatively higher rigidity than a case where they are not sewn along the broken line 129.
Fig. 8 shows a state in which the skin member 1211, the skin member 1221, and the skin member 1231 thus sewn are attached so as to cover the surface of the urethane pad 121, 122, 123 shown in fig. 2.
In the state shown in fig. 8, the skin member 1211 covers the surface of the urethane pad 121, the skin member 1221 covers the surface of the urethane pad 122, and the skin member 1231 covers the surface of the urethane pad 123. The sewn portion 113 where the skin member 1211 and the skin member 1221 are sewn is located at the upper portion of the groove portion 124 between the urethane pads 121 and 122. Further, the sewn portions 114, which are formed by sewing the skin member 1211 and the skin member 1221 to the skin member 1231, respectively, are located at the upper portions of the groove portions 125 between the urethane pads 121 and 123 and between the urethane pads 122 and 123.
Further, end portions 1213 and 1223 of the skin member 1211 to be sewn to the skin member 1221 and a core member 1215 attached to a hanging member 1214 to be sewn to the end portion 1213 are housed inside the groove portion 124 between the urethane pads 121 and 122. In this state, the core 1215 is fixed to the wire 127 embedded in the groove portion 124 of the urethane pad by a fixing member such as a C-ring not shown.
In the state shown in fig. 8, the protrusion 1212, which has relatively high rigidity by being folded back with respect to the skin member 1211 and by being partially sewn to the skin member 1231, and the protrusion 1222, which has relatively high rigidity by being folded back with respect to the skin member 1221 and by being partially sewn to the skin member 1231, cover the upper portion of the intersection portion 126, at which the groove portion 124 and the groove portion 125 of the polyurethane gasket intersect each other.
In this way, with the structure in which the upper portion of the intersecting portion 126 where the groove portion 124 of the urethane packing intersects with the groove portion 125 is covered by the protrusion portion 1212 and the protrusion portion 1222 having relatively high rigidity, wrinkles are less likely to be generated in the skin members 1211, 1221 even in the upper portion of the intersecting portion 126 that is not supported by the urethane packing.
In addition, although the example of the seat back 110 has been described in the present embodiment, the sewn portions 133 in the lateral direction and the sewn portions 134 in the longitudinal direction of the cover member covering the surface of the seating portion 131 on the seat cushion 130 side can be similarly applied.
Further, instead of fixing the end portions 1213 and 1223 sewn to the skin member 1211 and the skin member 1221 and the core material 1215 attached to the hanging member 1214 sewn to the end portion 1213 to the wire 127 embedded in the groove portion 124 of the urethane pad with a fixing member such as a C-ring, the core material 1215 may be fixed to the groove portion 124 of the urethane pad with an adhesive.
As described above, according to the present embodiment, it is possible to provide a seat back or a seat cushion of a vehicle seat, in which wrinkles are not generated on a skin material covering a surface thereof at a groove portion intersecting portion of a urethane pad.
Example 2
As a second embodiment 2 of the present invention, a case where a cloth pad is used instead of the protrusions 1212 of the skin member 1211 and the protrusions 1222 of the skin member 1221 described in embodiment 1 will be described with reference to fig. 9A to 13.
Since the shape of the urethane pad of the present embodiment is the same as the shape of the urethane pads 121, 122, and 123 described in embodiment 1 with reference to fig. 2, the description thereof will be omitted.
In the present embodiment, a skin member 2211 shown in fig. 9A is used instead of the skin member 1211 described in embodiment 1. The end of the skin member 1211 is sewn along a broken line 1216 with a hanging member 1214 to which a core member 1215 for fixing a fixing member such as a C-ring not shown in the figure to the wire 127 embedded in the groove portion 124 of the urethane liner is attached, as in the case described in example 1.
In addition, in the present embodiment, a skin member 2221 shown in fig. 9B is used instead of the skin member 1221 described in embodiment 1.
Fig. 10 shows a state in which the surface on the front side (the back side in fig. 9A and 9B) is opposed to each other when the skin member 2211 shown in fig. 9A and the skin member 2221 shown in fig. 9B are covered with the urethane pads 121 and 122, the vicinities of the ends (hereinafter, referred to as ends) 2213 and 2223 are sewn along the broken line 228, and then the skin member 2211 and the skin member 2221 are opened to the left and right with respect to the sewn portion (the broken line 228). The sewn portion 213 (corresponding to the sewn portion 113 in example 1) is formed by a portion (broken line 228) where the surface member 2211 and the surface member 2221 are sewn.
The skin member 1231 covering the surface of the bank portion 112 on the seat back side is superposed on the skin member 2211 and the skin member 21221 thus sewn and opened, so that the surface on the surface side faces the surface of the skin member 1211 and the surface of the skin member 1221 when covering the urethane pad 123 of the bank portion 112. Further, at a portion opened from the dotted line 228 of the sewing of the surface member 2211 and the surface member 21221, the floorings 2212 and 2222 are overlapped with the end surfaces thereof conforming to the end surfaces of the surface member 2211 and the surface member 2221.
In this overlapped state, the end vicinity 2217 of the skin member 2211 and the end vicinity 1232 of the skin member 1231, and the end vicinity 2224 of the skin member 2221 and the end vicinity 1232 of the skin member 1231 are sewn along the broken line 229.
Fig. 11 shows a state of such sewing. The patch 2212 overlapped to the skin member 2211 and the patch 2222 overlapped to the skin member 2221 are sewn to the skin member 2211 and the skin member 2221, respectively, along the broken line 229, and further, are sewn to the skin member 1231.
Next, fig. 12 shows a state in which the skin member 1231 is opened with the dotted line 229 as the center of the sewing in a state in which the skin member 2211 and the skin member 2221 are sewn to the skin member 1231 as shown in fig. 11. The vicinity 2214 of the end of the skin member 2211, the vicinity 2224 of the end of the skin member 2221, and the vicinity 1232 of the end of the skin member 1231, which are sewn at the portion indicated by the broken line 229, are erected with respect to the skin member 2211, the skin member 2221, and the skin member 1231, respectively. The portion of the skin member 2211 and the skin member 1231 that are sewn together and the portion of the skin member 2221 and the skin member 1231 that are sewn together, which are indicated by the broken lines 229, form the sewn portions 214 (corresponding to the sewn portions 114 in example 1).
In this state, the end portions 22121, 22221 of the patch 2212 and the patch 2222 are sewn to the surface member 2211 or the surface member 2221, respectively, along the broken line 229, and further sewn to the surface member 1231. As a result, the rigidity is relatively higher than the case where the patch 2212 and the patch 2222 are not used.
Fig. 13 shows a state in which the skin members 2211, 2221, and 1231 thus sewn are attached so as to cover the surfaces of the urethane backings 121, 122, and 123 shown in fig. 2.
In the state shown in fig. 13, the skin member 2211 covers the surface of the polyurethane pad 121, the skin member 2221 covers the surface of the polyurethane pad 122, and the skin member 1231 covers the surface of the polyurethane pad 123. The sewn portion 213 where the skin member 2211 and the skin member 2221 are sewn is located at the upper portion of the groove portion 124 between the urethane pads 121 and 122. In addition, the sewn portions 214, in which the skin member 2211 and the skin member 2221 are sewn to the skin member 1231, are located at the upper portions of the groove portions 125 between the urethane pads 121 and 123 and between the urethane pads 122 and 123, respectively.
Further, end portions 2213 and 2223 where the surface skin member 2211 and the surface skin member 2221 are sewn, and the core member 1215 attached to the hanging member 1214 where the end portion 2213 is sewn are housed inside the groove portion 124 between the urethane pads 121 and 122. In this state, the core 1215 is fixed to the wire 127 embedded in the groove portion 124 of the urethane pad with a fixing member such as a C-ring, not shown.
In the state shown in fig. 13, the portion of the rim 2212 stitched to the surface member 2211 and having relatively high rigidity and the portion of the rim 2222 stitched to the surface member 2221 and having relatively high rigidity cover the upper portion of the intersection portion 126 where the groove portion 124 and the groove portion 125 of the polyurethane liner intersect.
In this way, with the structure in which the upper portion of the intersecting portion 126 where the groove portion 124 and the groove portion 125 of the urethane pad intersect is covered by the portion where the floorcloth 2212 and the floorcloth 2222 having relatively high rigidity are sewn, wrinkles are less likely to be generated on the skin members 2211, 2221 even in the upper portion of the intersecting portion 126 which is not supported by the urethane pad.
In addition, although the example of the seat back 110 has been described in the present embodiment, the same applies to the sewn portions 133 in the lateral direction and the sewn portions 134 in the longitudinal direction of the cover member that covers the surface of the seating portion 131 on the seat cushion 130 side.
In addition, although the present embodiment has been described with respect to the structure in which the patch 2212 is sewn to the surface member 2211 and the surface member 1231 and the patch 2222 is sewn to the surface member 2221 and the surface member 1231, the patch 2212 may be bonded to the surface member 2211 and the patch 2212 may be bonded to the surface member 2211 by an adhesive. The blankets 2212 and 2222 may be formed of either the same material as the surface skin members 2211 and 2221 or a different material.
Further, as in the case of example 1, instead of fixing the end portions 1213 and 1223 of the skin member 1211 and the skin member 1221 sewn together and the core material 1215 attached to the hanging member 1214 sewn together with the end portion 1213 to the wire 127 embedded in the groove portion 124 of the urethane pad with a fixing member such as a C-ring, the core material 1215 may be fixed to the groove portion 124 of the urethane pad with an adhesive.
As described above, according to the present embodiment, it is possible to provide a seat back or a seat cushion of a vehicle seat in which wrinkles are not generated in a skin material covering a surface of a portion where groove portions of a urethane pad intersect.
Description of the reference numerals
100. vehicle seat, 110. seat back, 111. seat back, 112. dam, 113, 114. stitch, 121, 122, 123. polyurethane cushion, 124, 125. groove, 130. seat cushion, 131. seat, 132. dam, 133, 134. stitch, 1211, 1221, 1231. skin member, 1212, 1222. bump, 2211, 2221. skin member, 2212, 2222. cushion cloth

Claims (5)

1. A vehicle seat equipped with a seat cushion and a seat back, characterized in that,
at least either one of the seat cushion and the seat back is provided with a seating portion on which a rider sits and a bank portion supporting both sides of the seating portion,
the sitting portion has a polyurethane pad and a skin portion covering a surface of the polyurethane pad, the bank portion has a polyurethane pad supporting both sides of the sitting portion and a skin portion covering a surface of the polyurethane pad,
forming the skin portion of the sitting portion by sewing a plurality of skin members in a direction intersecting the sitting portion, a portion where a first skin member and a second skin member are sewn among portions where the plurality of skin members are sewn being buried in a groove portion formed on the urethane pad in the direction intersecting the urethane pad of the sitting portion,
the sewn first skin member and second skin member of the seat portion are folded back with the sewn portion between the end portion of the first skin member and the portion to which the hanging member is connected as a reinforcing member, the folded back portions are sewn together with skin members of skin portions covering the surface of the urethane pad of the bank portion including the folded back portions, respectively, and the sewn portions of the first skin member and second skin member of the seat portion and the skin member of the bank portion are embedded in groove portions formed between the urethane pad of the seat portion and the urethane pad of the bank portion,
the reinforcement member that reinforces the first skin member and the second skin member of the seat portion is sewn in both sides of a portion of the seat portion where the first skin member and the second skin member of the seat portion and the skin member of the bank portion are sewn so as to cover a position where a groove portion formed on the polyurethane pad of the seat portion intersects with a groove portion formed between the polyurethane pad of the seat portion and the polyurethane pad of the bank portion.
2. A vehicle seat according to claim 1, wherein the hanging member to which a core material for fixing to the groove portion formed on the urethane pad of the seating portion with a fixing member is attached is connected to a portion that is apart from an end portion of the first skin member at the sewn portion of the seating portion.
3. A vehicle seat equipped with a seat cushion and a seat back, characterized in that,
at least either one of the seat cushion and the seat back is provided with a seating portion in which a surface of a polyurethane pad is covered with a skin portion and on which a rider sits, and a bank portion which supports both sides of the seating portion and in which a surface of the polyurethane pad is covered with the skin portion,
the skin portion of the sitting portion has a first skin member and a second skin member, the first skin member and the second skin member being sewn together, a portion where the first skin member and the second skin member are sewn together being buried in a first groove portion formed in a polyurethane pad of the sitting portion in a direction transverse to the sitting portion,
wherein the sewn end portions of the first and second skin members of the sitting portion are sewn together with a reinforcement member with a skin member of a skin portion of a polyurethane pad covering the bank portion, the sewn portions of the first and second skin members of the sitting portion and the reinforcement member and the skin member of the bank portion are embedded in a second groove portion formed between the polyurethane pad on the sitting portion side and the polyurethane pad on the bank portion side, the reinforcement member is formed separately from the first and second skin members, and the first and second skin members are reinforced,
forming the reinforcing member reinforcing the first skin member and the second skin member of the seat portion at a portion where the first groove portion and the second groove portion intersect covered by the sewn first skin member and second skin member of the seat portion so as to cover a position where a groove portion formed on the polyurethane pad of the seat portion intersects with a groove portion formed between the polyurethane pad of the seat portion and the polyurethane pad of the bank portion.
4. A vehicle seat according to claim 3, wherein a hanging member to which a core material for fixing to the first groove portion formed on the urethane pad on the seating portion side with a fixing member is attached is connected to a portion that is apart from an end portion of the first skin member at the sewn portion of the first skin member and the second skin member of the seating portion.
5. A vehicle seat according to claim 3, wherein a member formed separately from the first skin member and the second skin member, which reinforces the first skin member and the second skin member of the seating portion, is composed of a first member sewn together with the first skin member with a skin member covering the urethane pad on the bank portion side, and a second member sewn together with the second skin member with a skin member covering the urethane pad on the bank portion side.
CN201910149383.1A 2018-03-12 2019-02-28 Vehicle seat Active CN110254309B (en)

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JP2018043791A JP7219007B2 (en) 2018-03-12 2018-03-12 vehicle seat

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