Abstract: A reversed U-shaped base frame for a seatback frame structure is of a monoblock structure, which includes an upper horizontal tubular portion and two side vertical portions. The two side vertical portions extend downward from axially opposed ends of the upper horizontal tubular portion. The base frame is produced from a shaped metal sheet by pressing and curling the same in such a manner that a given portion of the shaped metal sheet, which is shaped to produce the upper horizontal tubular portion, is curled to have a substantially circular cross section. The feature of the invention is that the curled given portion has circumferentially opposed edges which are overlapped each other.

Abstract: A rotating device of a seat has a lower base member secured to a vehicle floor. The lower base member includes a radially inside annular raised part and a radially outside depressed annular part. An annular holder member includes a radially inner part and a radially outer part. The radially inside part is concentrically put on and secured to the radially inside annular raised part in a manner to define therebetween an annular space. An upper base member mounts thereon the seat. The upper base member includes a radially inner annular depressed part and a radially outer annular raised part. The raidally inner annular depressed part is spacedly inserted into the annular space. A first group of rolling balls are operatively arranged between the radially outer depressed annular part and the radially inner annular depressed part. A second group of rolling balls are operatively arranged between the radially inner annular depressed part and the radially outer part.

Abstract: A vehicular seat adjuster has a pair of rail units for adjustably sliding a vehicular seat in the fore-and-aft direction and a lifting mechanism for adjustably moving up and down the seat. The lifting mechanism is installed to the rail unit and includes a front lifting section disposed under a front portion of the seat for vertically moving a front portion of a seat according to an operation of a front motor unit and a rear lifting unit disposed under a rear portion of the seat for vertically moving a rear portion of the seat according to an operation of a rear motor unit. The front and rear motor units are swingably supported to a shaft member, which is rotatably supported to the pair of seat rails.

Abstract: An airbag of an airbag restraint system mounted on an automotive vehicle and adapted to protect a vehicle passenger in a serious vehicle collision. The airbag is formed of front and rear side sheet-like members which are sewn with each other at their peripheral portions to be bag-shaped. Each sheet-like member includes a cloth which is woven with warp and weft yams formed of polyester resin or nylon 6, 6 fibers. The cloth is impregnated with a resinous material including a polyurethane resin adhesive for the fibers, so that the yarns of the sheet-like member are bound with each other thereby effectively preventing fray from occurrence even upon cutting of the sheet-like member.

Abstract: A rotary-cam type reclining device comprises a base fixedly connected to a seat cushion, a toothed arm fixedly connected to a seat back and rotatably supported on the base via a pivot, a toothed block slidably disposed between the base and the arm and having an outer toothed portion and a cam-contour surface and slidably guided by two parallel side walls of a recessed toothed-block guide defined in the base, a rotary cam for producing outward and inward sliding motions of the toothed block to mesh and unmesh the outer toothed portion of the toothed block with and from the inner toothed portion of the arm by a rotary motion of the cam, and an operating lever mechanically linked to the cam for producing the rotary motion of the cam.

Abstract: A floor covering for automotive vehicles includes a first surface area layer formed of tuft carpeting or other high quality, esthetically pleasing floor covering material and a second surface area layer formed of needlepunch floor covering or other durable and less costly material. The first and second surface layer portions are provided on a support mounted over a waterproof bottom surface sheet of polyethylene, or the like. One or both of the tuft carpet and needlepunch areas may be adhered to the support via a hot melt film layer. The densities of the materials selected for the layers are determined for durability and strength and may additionally absorb vehicle vibration and provide reduced noise in the vehicle cabin. To this effect, an additional base layer may be provided between the bottom surface layer and the hot melt layer which is formed of high density material for increasing passenger comfort and overall durability of the floor covering material.

Abstract: In order to neatly locate an electric drive mechanism under a seat, a unique measure is applied to a power seat slide device. An upper rail has an upper vertical flange through which the seat is secured to the upper rail. The vertical upper flange has a part mounting portion which extends forward beyond a front end of the upper rail. A recess is formed in the part mounting portion, which faces downward. A speed reduction gear box is neatly received in the recess and secured to the part mounting portion through a locking pin. An electric motor has one end secured to the gear box and the other end projected in a direction perpendicular to a direction in which the upper rail runs. A screw shaft extends from the gear box and extends in and along the upper rail. A nut member is secured to the lower rail and operatively engaged with the screw shaft.

Abstract: A reclining device for a seat comprises first and second side reclining mechanisms which are substantially the same in construction and mounted to respective sides of the seat to allow a seat back to be locked at a desired angular position relative to a seat cushion. A connecting rod extends between the first and second side reclining mechanisms. The connecting rod induces a locked condition of the seat back when turned in a first direction about an axis thereof and induces an unlocked condition of the seat back when turned in a second direction about the axis. A control lever is connected to one end of the connecting rod to pivot therewith. A projection is formed on the connecting rod in a manner to project in a direction perpendicular to the axis of the connecting rod.

Abstract: The present invention provides a light-weight and luxury facing for seat which hardly gives rise to folding wrinkles when it is applied to one surface of a cushion constituting a seat; the facing for seat composed of the lamination of a surface material made of fabrics, a flexible cellular plastic middle layer, and a backing, in which the backing is made of a low friction synthetic resin, preferably the backing is coated with a coating agent, particularly preferably said coating agent is prepared from an oxidized polyethylene wax latex or polyvinylidene chloride or ethylene-vinyl acetate copolymer latex or mixture thereof.

Abstract: A reclining device comprises a stationary base fixedly connected to a seat cushion, a pivotal, press-worked arm fixedly connected to a seat back and rotatably supported on the base and having an inner toothed portion, at least one toothed block slidably disposed between the base and the arm and having an outer toothed portion meshable with the inner toothed portion, and a rotary cam in cam-connection with the toothed block for producing an outward or inward sliding motion of the toothed block to mesh or unmesh the outer toothed portion with or from the inner toothed portion by rotation of the cam.

Abstract: A seat adjuster of a vehicular seat is provided with a seat lifting mechanism which includes front and rear shafts which are supported to vertically extending walls of a pair of seat rails for sliding a vehicular seat. One end portion of each shaft has a bulged portion for receiving the wall and a groove for setting a stop ring. The end portion is inserted to a through-hole of the wall and limitingly connected thereto by means of the bulged portion and the stop pin set in the groove.

Abstract: Disclosed is a process for producing a carpet backsized with a backing composition. The composition contains a resin component with ethylene/vinyl acetate being the principle compound and an ethylene/alpha-olefin copolymer constituting the remainder. In addition, the composition includes an inorganic filler in an amount of from 25 to 75% by weight and a dispersing agent that is atactic polypropylene. This composition is formed by kneading and pelletizing the inorganic filler and dispersing agent to form a master batch which is in turn dry-blended with the resin component of the composition, followed by extrusion through T-dies into a sheet and applied, while still melted, to the underside of a carpet base material and cooled.

Abstract: A method of molding a headrest of automotive seat comprises the following steps. First, a bag shaped flexible outer skin member is prepared, has an elongate slit formed therethrough. A part of a stay member is inserted into the outer skin member through the slit and set relative to the outer skin member. A given biasing force is applied to longitudinal ends of the slit so that the slit is stretched in longitudinally opposed directions and thus caused to take a closed position. Then, an injection nozzle of a foamable material feeder is put into the slit by expanding the slit against the biasing force. A foamable material is poured into the outer skin member, and the material feeding is stopped when a given amount of material is fed to the outer skin member. The application of the biasing force to the slit is continued until the material is sufficiently cured.

Abstract: A double-sided reclining apparatus, comprising a first reclining device equipped with a reclining-lever handle and a second reclining device. Each reclining device includes a base to be fixedly connected to a seat cushion and an arm adapted to be fixedly connected to a seat back and rotatably supported on the base through a pivot shaft. The arm has a first toothed portion. A cam and a toothed cam follower are in cam-connection with each other.

Abstract: A reclining device comprises a base fixedly connected to a seat cushion and an arm fixedly connected to a seat back and rotatably supported on the base. The arm has at least one inner toothed portion. A toothed block is slidably disposed between the base and the arm and has an outer toothed portion on an outer periphery thereof and a cam-contour surface on an inner periphery thereof. The base is formed integral with a recessed guide defining therein two parallel diametrically-opposed side walls for slidably guiding the toothed block outward, away from a center of rotation of the arm and inward toward the center of rotation of the arm. A rotary cam has a cam-profile surface on an outer periphery thereof.

Abstract: A headrest to be installed to a seat back of an automotive seat. The headrest comprises a generally bag-shaped outer skin including a surface section which has first and second end edge portions. The first end edge portion includes a first part integral with the surface section, and a second part integral with the first part and generally parallel with the surface section. A slit is defined between the first part of the first end edge portion and the second end edge portion.

Abstract: A vehicular seat comprises a seat cushion part and a seatback part connected to the seat cushion part. The seatback part includes a frame structure provided with two side panels. An air-bag module is mounted through a compact mounting structure to one of the side panels in a manner reinforce the side panel.

Abstract: A method of integrally bonding a foam seat pad or other article to a cover material, includes steps of coating a main surface of the pad with a heat activated adhesive. Then, the pad is affixed to an upper mounting member. A lower mounting member is positioned opposite the upper mounting member and the cover material is disposed on the lower mounting member. Heating is applied to the adhesive coating the main surface of the pad, and when sufficient heat is applied the upper and lower mounting members are pressed together for a predetermined time period. Clamps are provided on the mounting members for surely positioning the pad relative the cover material. Thus, accurate positioning and strong bonding are reliably assured.

Abstract: A moveable headrest is equipped with a lower headrest frame shaft fixedly connected to a headrest stay detachably connected to the upper end of the seat back, and a pair of ratchet bases rotatably supported on respective shaft ends of the lower frame shaft. The ratchet bases are coupled with each other at their upper ends through a moveable upper headrest frame. A ratchet-and-pawl mechanism is attached to at least one of the base members for selectively engaging the upper frame with the lower frame shaft and for producing a forward-and-backward angular adjustment of the headrest. The shaft end of the lower frame shaft is formed with an annular stepped portion extending continuously in a peripheral direction of the lower frame shaft nearby the top end, so that the annular stepped portion abuts the inside wall surface of the ratchet base.

Abstract: A back-rest frame structure for a vehicular seat comprising a generally U-shaped frame that includes an upper frame section. The upper frame section has a generally channel-shaped section and includes an upper end wall portion formed with through-holes for receiving holders for stays of a head rest. First and second side frame sections are integrally connected respectively to the opposite end portions of the upper frame section. The generally U-shaped frame is produced from a metal sheet as a one-piece structure. A support bracket is fixed to the upper frame section and adapted to support the holders for the head rest stays. The support bracket includes a support section for supporting the holders, located opposite to the upper end wall portion of the upper frame section of the frame. The support section is formed with through-holes facing those of the upper end wall portion of the upper frame section so as to respectively receive the holders.