External covering material for motor vehicle, motor vehicle seat, and apparatus for producing the seat

Abstract

In a skin material for a vehicle, a general surface and a predetermined shape having an outer appearance which is equal to a joint portion obtained by actually bonding a plurality of skin materials are formed in a one-piece skin material in accordance with a transcription, and an outer appearance which is equal to a three-dimensional outer appearance obtained by actually bonding a plurality of skin materials is formed three-dimensionally by one skin material.

1 - 15 . (canceled)  
     
     
         16 . A skin material for a vehicle, comprising: 
 a general surface and a predetermined shape having an outer appearance which is equivalent to a joint portion obtained by an actual bonding of a plurality of skin materials that is constructed as a one-piece skin material in accordance with a transcription, the skin material comprising an outer appearance which is equivalent to a three-dimensional outer appearance obtained by actually bonding a plurality of skin materials in a three-dimensional form by one skin material.    
     
     
         17 . The skin material for a vehicle as claimed in  claim 16 , wherein the skin material comprises a form material arranged in portions other than the joint portion in a back surface of the skin material and forming a seat surface having a concavo-convex shape.  
     
     
         18 . The skin material for a vehicle as claimed in  claim 16 , wherein the joint portion having the outer appearance equal to the outer appearance obtained by actually bonding the plurality of skin materials is constituted by any one of a joint in accordance with a sewing, a joint in accordance with a welding process and an ornamental stitch portion provided in the skin material surface.  
     
     
         19 . The skin material for a vehicle as claimed in  claim 16 , wherein the joint portion is formed in a shape protruding from the general surface.  
     
     
         20 . The skin material for a vehicle as claimed in  claim 16 , wherein the skin material is structured such that all or a part of a joint portion shape of a plurality of skin materials, an undercut shape of the joint portion, a shape of a sewing thread, an undercut shape of the sewing thread, a shape of a seam hole, a concavo-convex shape obtained by overlapping the skin materials in the joint portion, and a shape showing a biting state of the sewing thread into the skin material are transcribed.  
     
     
         21 . The skin material for a vehicle as claimed in  claim 16 , wherein the outer appearances equivalent to the three-dimensional outer appearances are provided on the boundary of the joint portion.  
     
     
         22 . The skin material for a vehicle as claimed in  claim 17 , wherein the back surface material is arranged in the form material and the form material is pinched by the back surface material and the skin material.  
     
     
         23 . The skin material for a vehicle as claimed in  claim 18 , wherein the ornamental stitch portion is constituted by a pattern portion.  
     
     
         24 . A seat for a vehicle, comprising a skin material covering, the skin material covering comprising: 
 a general surface and a predetermined shape having an outer appearance which is equal to a joint portion obtained by an actual bonding of a plurality of skin materials that is constructed as a one-piece skin material in accordance with a transcription, the skin material comprising an outer appearance which is equivalent to a three-dimensional outer appearance obtained by actually bonding a plurality of skin materials in a three-dimensional form by one skin material.    
     
     
         25 . A manufacturing apparatus for a seat for a vehicle covered with a skin material, the manufacturing apparatus comprising: 
 a forming metal mold for forming the skin material, the forming metal mold comprising a porous metal spray layer forming a cavity surface, and a porous backup layer holding the metal spray layer.    
     
     
         26 . The manufacturing apparatus of a seat for a vehicle as claimed in  claim 25 , wherein a thickness of the metal spray layer is equal to or more than 0.7 mm and equal to or less than 1.0 mm.  
     
     
         27 . The manufacturing apparatus of a seat for a vehicle as claimed in  claim 25 , wherein the forming metal mold is constituted by a vacuum mold.  
     
     
         28 . The manufacturing apparatus of a seat for a vehicle as  claim 25 , wherein the backup layer is constituted by a first layer and a second layer, a thickness of the first layer is equal to or more than 7.0 mm and equal to or less than 10.0 mm, and a thickness of the second layer is equal to or more than 50.0 mm and equal to or less than 70.0 mm.  
     
     
         29 . The manufacturing apparatus of a seat for a vehicle as claimed in  claim 28 , wherein the first layer is formed by a metal powder, and a diameter of a hole formed therebetween is equal to or more than 1.5 mm and equal to or less than 2.0 mm.  
     
     
         30 . The manufacturing apparatus of a seat for a vehicle as claimed in  claim 28 , wherein the second layer is formed by a metal powder, and a diameter of a hole formed therebetween is equal to or more than 3.0 mm and equal to or less than 5.0 mm.