Abstract: To satisfy a desired air flow-static pressure characteristic while satisfying constraints of a power supply capacity and without over-limiting the drive current. A motor drive control device includes: a control circuit unit configured to generate a drive control signal (Sd) for controlling an actual rotation speed of a motor based on a speed command signal indicating a target rotation speed of the motor; and a motor drive unit configured to drive the motor based on the drive control signal (Sd). The control circuit unit includes a power control unit configured to enable selection of one of: a speed feedback control mode to generate the drive control signal (Sd) so that the actual rotation speed of the motor matches the target rotation speed; and a current feedback control mode to generate the drive control signal (Sd) so that a drive current of the motor matches a target current.

Abstract: Provided is a foam in place simulation method that simulates steps of forming a foam in place molded product by supplying a foaming raw material inside a surface skin that is disposed inside a mold through an inlet port thus filling a foamed body into the surface skin. The method is configured to simulate the steps of: setting a shape of the inside of the mold as a fixed boundary condition; setting a material characteristic value of the surface skin whose shape changes corresponding to a filling state of the foamed body into the surface skin; and forming the foam in place molded product from the surface skin by filling the foamed body into the surface skin based on the shape of the surface skin at the time of setting the surface skin inside the mold based on the fixed boundary condition and the material characteristic value.

Abstract: In a skin integral molded article which is formed by filling the inside of a skin which is formed into a bag shape with a foamed body and molding the foamed body integrally with the skin, an opening through which a foaming raw material is supplied into the skin is formed in the skin, in one side skin and other side skin which are formed with the opening being interposed, the one-side skin is bent into inside the opening, the other-side skin is provided with a part disposed ahead of a part which is bent into inside the opening and is formed to be pliable, and the part which is disposed ahead of the other-side skin part and is formed to be pliable is formed in contact with a leading end part of the one-side skin part which is bent into the opening.

Abstract: A vehicle seat includes a headrest, a seat back to which the headrest is attached, and a seat cushion connected to the seat back. The headrest includes pillar frames attached to the seat back, a core member that includes a pouring passage penetrating from one end to the other end, a cover that covers the core member and a part of the pillar frames, and a cushion member that is formed in a gap between the outer surface of the core member and the inner surface of the cover and inside the pouring passage. The pouring passage extends in a first direction from the one end of the core member to reach a predetermined position, extends in a second direction from the predetermined position to reach the other end, and includes a bent part at the predetermined position.

Abstract: A seat for vehicles including a seat cushion, a seat back, and a head rest has the following arrangement to ensure that a surface member can be relatively easily but positively removed from a urethane pad if a foam molding defect is found in the urethane pad in integral molding of the urethane pad and the surface member. In the seat for vehicles, any one of the seat cushion, seat back, and head rest has a configuration where a surface of the urethane pad is covered with the surface member. The urethane pad and the surface member are partially bonded together by integral molding.

Abstract: A vehicle seat includes a headrest, a seat back to which the headrest is attached, and a seat cushion connected to the seat back. The headrest includes pillar frames attached to the seat back, a core member that includes a pouring passage penetrating from one end to the other end, a cover that covers the core member and a part of the pillar frames, and a cushion member that is formed in a gap between the outer surface of the core member and the inner surface of the cover and inside the pouring passage. The pouring passage extends in a first direction from the one end of the core member to reach a predetermined position, extends in a second direction from the predetermined position to reach the other end, and includes a bent part at the predetermined position.

Abstract: A seat for vehicles including a seat cushion, a seat back, and a head rest has the following arrangement to ensure that a surface member can be relatively easily but positively removed from a urethane pad if a foam molding defect is found in the urethane pad in integral molding of the urethane pad and the surface member. In the seat for vehicles, any one of the seat cushion, seat back, and head rest has a configuration where a surface of the urethane pad is covered with the surface member. The urethane pad and the surface member are partially bonded together by integral molding.

Abstract: Provided is a method of producing a foamed article molded integrally with a surface cover in which a plurality of stock solutions of a foam resin are injected into a bag-shaped surface cover (11), and a core body (12) made of a foam resin is molded integrally with the surface cover (11). A discharge port of a nozzle (20) through which the plurality of stock solutions are injected into the surface cover (11) is covered with a mesh body (14), and the plurality of stock solutions are injected into the surface cover (11) through the mesh body (14).

Abstract: In a skin integral molded article which is formed by filling the inside of a skin which is formed into a bag shape with a foamed body and molding the foamed body integrally with the skin, an opening through which a foaming raw material is supplied into the skin is formed in the skin, in one side skin and other side skin which are formed with the opening being interposed, the one-side skin is bent into inside the opening, the other-side skin is provided with a part disposed ahead of a part which is bent into inside the opening and is formed to be pliable, and the part which is disposed ahead of the other-side skin part and is formed to be pliable is formed in contact with a leading end part of the one-side skin part which is bent into the opening.

Abstract: A foaming die device for forming a headrest is provided, which comprises a lower die having a first protrusion and an upper die having a second protrusion. The lower and upper dies are used for accommodating a trim cover assembly with a headrest stay portion extending outwardly through a stay passage hole formed in the trim cover assembly. The first and second protrusions are adapted to press and turn over a projected area created about the stay passage hole into the inside of that trim cover assembly. Also, a foaming process for forming the headrest, using this foaming die device, is provided, in which the projected area is turned over by the first and second protrusions into the trim cover assembly when placing the trim cover assembly in the dies. Hence, conventional preliminary steps using cylindrical stick to turn over the projected area into the trim cover assembly are eliminated.

Abstract: A foaming die device for forming a headrest is provided, which comprises a lower die having a first protrusion and an upper die having a second protrusion. The lower and upper dies are used for accommodating a trim cover assembly with a headrest stay portion extending outwardly through a stay passage hole formed in the trim cover assembly. The first and second protrusions are adapted to press and turn over a projected area created about the stay hole into the inside of that trim cover assembly. Also, a foaming process for forming the headrest, using this foaming die device, is provided, in which the projected area is turned over by the first and second protrusions into the trim cover assembly when placing the trim cover assembly in the dies. Hence, conventional preliminary steps using cylindrical stick to turn over the projected area into the trim cover assembly are eliminated.

Abstract: A process is provided for forming a foam product integral with a cover surface, which restricts emission of the carbon oxide during the step of preparing a carbon-oxide-mixed liquid by mixing carbon oxide into a first material containing polyol as a primary ingredient; under a pressure applied thereto.

Abstract: A seat cushion of a seat, which can avoid creation of wrinkle or crease in an area of a trim cover element corresponding to a lateral side of the seat cushion, irrespective of a downward load applied to the seat cushion, thereby making it possible to maintain an outer appearance of the seat cushion in a good quality condition. In a surface of a recessed region of a padding forming a part of the seat cushion, defined flexible portions are formed to be flexed in an inward direction by a downward load applied thereto. Non-bonding areas are defined between the trim cover element and the flexible portions.

Abstract: A patch element 20 of a doughnut-like disc shape is fixedly provided, by sewing or adhesive, to a reverse surface of a seat-back-side area 12a defined in a trim cover assembly section covering a top region 12 of a headrest HR, in such a fashion that the patch element 20 circumscribes an entire edge of a headrest stay passage hole 14. Additionally, the patch element 20 is formed from a material capable of being impregnated with a liquid foaming agent injected in the trim cover assembly 2. Such patch element 20 has been impregnated with the liquid foaming agent S injected in the trim cover assembly 2 during a foaming process to form the headrest HR. Consequently, a density of the patch element 20 itself becomes extremely high, and therefore a strength of the patch element 20 can be increased to a great degree.

Abstract: A trim cover assembly of extremely soft property comprises a surface cover element, a wadding cover, and a thick foam wadding sandwiched therebetween, wherein the thick foam wadding has a compressed thin end surface region sewn with the surface cover element and wadding cover. Sewing method for forming such trim cover assembly involves: pressing and collapsing an end surface of the thick foam wadding in downwardly slantwise direction to provide a compressed thin area, thereby allowing direct access thereto of a conventional sewing machine; operating the sewing machine to sew the compressed thin area with the surface cover element, thereby producing a sewn trim cover having a compressed thin end region therein; and thereafter sewing the wadding cover with such sewn trim cover in correspondence with the compressed thin end region. As such, a trim cover assembly having the thick foam wadding is easily formed by the conventional sewing machine.

Abstract: A vibrator element includes a base portion, a vibrating arm extending from the base portion, a first electrode provided on the vibrating arm, a second electrode provided above the first electrode, a piezoelectric body arranged between the first electrode and the second electrode, and an insulating film arranged between the first electrode and the piezoelectric body, in which the material of the first electrode contains TiN, the material of the insulating film contains SiO2, and the material of the piezoelectric body contains AlN.

Abstract: A seat cushion of a seat, which can avoid creation of wrinkle or crease in an area of a trim cover element corresponding to a lateral side of the seat cushion, irrespective of a downward load applied to the seat cushion, thereby making it possible to maintain an outer appearance of the seat cushion in a good quality condition. In a surface of a recessed region of a padding forming a part of the seat cushion, defined flexible portions are formed to be flexed in an inward direction by a downward load applied thereto. Non-bonding areas are defined between the trim cover element and the flexible portions.

Abstract: A trim cover assembly of extremely soft property comprises a surface cover element, a wadding cover, and a thick foam wadding sandwiched therebetween, wherein the thick foam wadding has a compressed thin end surface region sewn with the surface cover element and wadding cover. Sewing method for forming such trim cover assembly involves: pressing and collapsing an end surface of the thick foam wadding in downwardly slantwise direction to provide a compressed thin area, thereby allowing direct access thereto of a conventional sewing machine; operating the sewing machine to sew the compressed thin area with the surface cover element, thereby producing a sewn trim cover having a compressed thin end region therein; and thereafter sewing the wadding cover with such sewn trim cover in correspondence with the compressed thin end region. As such, a trim cover assembly having the thick foam wadding is easily formed by the conventional sewing machine.

Abstract: [Purpose] To provide a headrest which avoids separation of a foam padding adjacent to a headrest stay passage hole from a headrest stay. [Means for Achieving the Purpose] A patch element 20 of a doughnut-like disc shape is fixedly provided, by sewing or adhesive, to a reverse surface of a seat-back-side area 12a defined in a trim cover assembly section covering a top region 12 of a headrest HR, in such a fashion that the patch element 20 circumscribes an entire edge of a headrest stay passage hole 14. Additionally, the patch element 20 is formed from a material capable of being impregnated with a liquid foaming agent (e.g. urethane of foaming property) injected in the trim cover assembly 2. Such patch element 20 has been impregnated with the liquid foaming agent S (e.g. urethane of foaming property) injected in the trim cover assembly 2 during a foaming process to form the headrest HR.

Abstract: A process is provided for forming a foam product integral with a cover surface, which restricts emission of the carbon oxide during the step of preparing a carbon-oxide-mixed liquid by mixing carbon oxide into a first material containing polyol as a primary ingredient; under a pressure applied thereto.