Abstract: An improved vehicle seat comprising a cushion member formed of foam material is disclosed which is provided with a frame-like shape-retaining member of a wire material embedded within the cushion member. The shape-retaining member includes a buttocks support element to which a peripheral element is pivotably connected for up and down rotation with respect to the buttocks support section to provide a continuous top sitting surface for the buttocks support element and the movable peripheral support sections.

Abstract: A cushion body of a seat for vehicles is disclosed which comprises a main pad portion, front and back portions foldably, integrally connected with the corresponding forward and back edges of the main pad portion, and left and right side portions foldably, integrally connected with the corresponding left and right side edges of the main pad portion. All the pad portions are made of a foam material, and the front and back portions as well as the right and left side portions have superimposing surfaces for being superimposed on the upper surface of the main pad portion when each of those portions are folded over on to the main pad. A recessed portion is formed in one of the upper surface of the main pad portion and the superimposing surfaces of those front and back portions as well as left and right side portions, or both of all the upper surface and superimposing surfaces thereof, whereby an air bag is stored in the cavity formed by the recessed portion(s).

Abstract: A seat for vehicles is described having a thigh support device comprising a seat frame, a movable frame superimposed over and pivotally rotatably secured to the seat frame, an integrally formed cushioning member and a top cover member. The cushioning member has a thigh support portion disposed on the movable frame and a buttocks support portion disposed on the seat frame. Two separately divided side cover sections are defined in the side cover section of the top cover member so as to provide a first side cover section covering the thigh support portion and a second side cover section covering the buttocks support portion with the first and second side cover sections being secured in such a manner that they overlap each other at their respective edge portions.

Abstract: A head rest unit for use in a vehicle seat includes a head rest stay, a main frame pivotally fixed to the head rest stay, and an auxiliary frame pivotally fixed to the front outer surface of the main frame. A linking mechanism is arranged between the main frame and auxiliary frame so as to permit the auxiliary frame to pivot away from the main frame and towards the occupant's head when the head rest is inclined.

Abstract: An automobile seat cushion back including a contoured seat cushion with a trim cover thereon and a stretchable support layer for such seat cushion. A soft back cover is secured to and extends between opposed edges of said support layer to form an open ended bag therewith. Such bag can be pulled over a seat cushion back to be secured thereto under tension.

Abstract: A trim cover assembly of a seat for use as furniture, for use in an automobile or the like is disclosed. The trim cover assembly is provided with a decorative pattern on the surface thereof. To obtain such decorative pattern, a pattern member of a tube is collapsed in a tape form and welded integrally to the surface of the body of the trim cover assembly under heat and pressure.

Abstract: In a device for adjusting the support pressure of the passenger's thighs by raising or lowering a thigh support part in a seat cushion, a lock mechanism is mounted both in a seat frame and the thigh support pipe which rotates in the up and down directions of said seat frame. The lock mechanism consists of a lock piece pivotally fixed to a rotating shaft disposed horizontally in the thigh support pipe, a stopper which engages with the lock piece mounted rotatably free to the thigh support pipe and a lock release lever which releases a locking state by pushing said stopper in the direction opposite to its engaging direction.

Abstract: An apparatus for forming a pipe frame for use in a vehicle seat is disclosed in which spring clamps are welded to a rectilinear pipe material of a predetermined length at the predetermined positions thereof, the pipe material is then bent into a required configuration, one of two ends of the pipe material is then compressed to form such a smaller diameter portion as to be insertable into the inside diameter portion of the other end, and the compressed smaller diameter portion of the one end is forcibly inserted into the other end so that the inserted portion of the pipe material is welded.

Abstract: A method of manufacturing an automotive seat is disclosed which comprises the step of placing a trim cover assembly over a cushion member of foam material. In the method, a thermally weldable adhesive cloth is interposed between the trim cover assembly and the cushion member and is then welded by means of heating/pressure operation so that the trim cover assembly can be adhesively attached to the surface of the cushion member. Thus, the method provides such a seat that is improved in finishing as well as durability.

Abstract: A process for manufacturing a trim cover assembly constituting the surface of an automotive seat or airplane seat is disclosed and comprises the step of forming a covering material and a foam wadding with a plurality of recessed grooves on the surface thereof. The process also includes the step of forming the covering material in the trim cover assembly by a thermal press or the like into a predetermined uneven configuration. Then, the thus-formed covering material is adhesively bonded to the surface of the foam wadding so that various kinds of uneven configurations are available for use as the surface of the trim cover assembly.

Abstract: The present invention is an improvement in seat construction for seating at least two passengers which includes a seat frame having front and back sides running the length of the frame and left and right sides running transverse of the frame, and is adapted to support at least two passenger seats. In particular, the present invention includes independent thigh support devices for each of the passengers, and a cushion member for each of the passengers which extend from the back of the seat frame and are arranged on each of the thigh support devices for simultaneous movement therewith and each of which have a perimeter dimension for supporting a passenger. Each of the thigh support devices, in turn, includes a thigh support frame pivotally fixed to the back of the seat frame for upward and downward rotation each thigh support frame formed so that it is substantially coextensive with the perimeter of each cushion member.

Abstract: A method of assembling a seat back in an automotive seat is disclosed which comprises the steps: inserting a baggily sewn trim cover assembly into a lower mold; pressing an upper mold against the front surface of the trim cover assembly to emboss a predetermined configuration in the trim cover assembly; applying an adhesive agent to the embossed trim cover assembly; pressing a cushion member against the embossed trim cover assembly to bond thereto and, turning over the portions of the trim cover assembly which are not bonded to cover the cushion member.

Abstract: A tandem seat for a two-wheeled vehicle comprises a bottom of hard synthetic resin to be fixed to a vehicle body, a pad of foam material to be placed onto the bottom and a trim cover assembly for covering the pad. In this tandem seat, recessed grooves are formed in the respective sides of the above-mentioned bottom and pad. These recessed grooves extend along the interfaces between the front and rear seat sections of the tandem seat. The trim cover assembly is thrust into the recessed grooves to separate the front and rear seat sections from each other, so that such an appearance like a split seat is obtained.

Abstract: A trim cover assembly for a seat used in a vehicle such as an automobile is disclosed which is a combination of a top cover member, a foam wadding and a wadding cover welded together by means of high frequency waves and also which is formed with a plurality of stitches by means of such high frequency waves on the top surface thereof for the improved appearance thereof. In the portions of the welder stitches where the trim cover assembly is curvedly placed, there is provided a non-welded portion, making the trim cover assembly easy to curve in such portions as well as preventing the production of wrinkles.

Abstract: A seat frame for use in an automotive seat. The seat frame is divided into four sections, that is, front, rear, right and left sections, and at least the right and left sections or side frame members are respectively formed in a substantially Z-shaped configuration. Namely, each of the side frame members comprises a vertically extending web, an upper flange and a lower flange projecting in opposing directions to each other with respect to the web, whereby, when loads are applied to the side frame members, the respective centers of shearing thereof are caused to exist in their webs or adjacent portions thereof, resulting in the increased strength.

Abstract: A headrest device for use with a seat in a vehicle such as an automobile is disclosed.

Abstract: A method for manufacturing a seat for use in an automobile, airplane and the like is disclosed which comprises the steps: knitting at least two kinds of synthetic fibers respectively having different average heat setting temperatures to form a bag-shaped trim cover assembly of a size suitable for covering a pad of foam material; covering the foam pad with the thus-formed trim cover assembly; and then heat-setting both the trim cover assembly and the pad at temperatures necessary for the trim cover assembly to shrink sufficiently so that the trim cover assembly can be brought into close contact with the surface of the pad.

Abstract: A construction of the interior of an arm rest housing is provided. The cloth which forms the upper wall of a recessed arm rest housing is stitched to cloths forming a left and right side walls thereof keeping the seams outside. The extension of the cloth is extended around the frame located inside the seat and terminates in one end. This end is fixed to a fixing wire and a panel is affixed on the fixing wire. In this construction an improved interior construction of the arm rest housing in a seat for vehicles is disclosed wherein there is defined spaced in a portion of frame corresponding to the seams of the cloths, whereby the seams extend through such space into the inside of the seat. In this manner, bulging at the corners of the interior of the housing is avoided and the exterior appearance is enhanced.

Abstract: A trim cover assembly forming the surface of a vehicle seat such as an automotive seat is disclosed which comprises a three-layer lamination composed of a thermally weldable covering material, a wadding formed of a thermally weldable foam material and a wadding cover. In the trim cover assembly, the three-layer lamination is pressurized and heated by a high frequency welding machine to form a plurality of recessed grooves in one or more main bodies of the trim cover assembly and at the same time to provide a plurality of joint portions, which are formed by collapsing the above-mentioned three elements of the trim cover assembly, along the ends of the trim cover assembly lying in the extensions of the recessed grooves, so that the intersections of the recessed grooves and joint portions are regularly folded to facilitate the positive and fine welding of other components of the trim cover assembly to the joint portions.

Abstract: A seat cover comprises a knitting of a three-dimensional structure conforming in its external shape to that of a seat and including at least main portions, side portions and welt portions integrally knit into a one-piece form. The knitting further includes integrally knit portions covering overhang portions and corner portions of the seat and/or rear and bottom portions of a front back of the seat.