Ikeda Bussan Co. Ltd.

Eiichi Yamano

Tohru Satoh

Toru Kondo

Masami Yonekura

Takashi Yamashita

Syuzaburo Kimura

Yoshiharu Ishikawa

Masatoshi Yasuno

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.

Method for molding the headrest of an automotive seat

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. The headrest is produced by a process including the following steps: (a) bending the first end edge portion inward of the surface section so that the second part of the first end edge portion is generally parallel with the surface section; (b) forming first insertion holes in the second part of the first end edge portion and second insertion holes in the surface section; (b) inserting headrest stays of a frame inside the bag-shaped outer skin through the slit formed; (d) inserting each headrest stay into each first insertion hole and each second insertion hole so that the head rest stay is projected out of the surface section; (e) disposing the bag-shaped outer skin inside a foaming-fabrication mold; and (f) pouring a raw material of a foam material through the slit into the bag-shaped outer skin so that the second end edge portion is brought into contact with the first part of the first end edge portion so as to tightly close the slit.

Headrest

A rotatable seat mounted on a floor includes a seat proper, a lower base member mounted on the floor, an upper base member mounting thereon the seat proper and a retaining member for retaining the upper base member on the lower base member. The lower base member has a first annular portion. The upper base member has an annular flange portion and a second annular portion which is truncated conical in shape. The annular flange portion is rotatably put on the first annular portion such that the upper base member is rotatable relative to the lower base member. The retaining member is secured to the lower base member and has third and fourth annular portions. The third annular portion is opposed to and spaced from the first annular portion such that an annular groove for receiving therein the annular flange portion is defined therebetween. The fourth annular portion is truncated conical in shape and opposed to and spaced from the second annular portion such that a certain clearance is provided therebetween and that, when the upper base member receives a force to separate the upper base member from the lower base member, deformation of the upper base member is substantially suppressed by that the second annular portion is brought into abutment with the fourth annular portion.

Rotatable seat

Herein disclosed is a folding seat which comprises first and second side arms each being pivotally mounted on a floor, a seatback secured to the side arms to move therewith, a seat cushion connected to the side arms in a manner to be pivotal between a horizontal in-use position and an upright folded position, a first latching mechanism for latching the seat cushion when the same assumes the two positions selectively, a second latching mechanism for latching the second side arm when the same is raised up to its upright position, a third latching mechanism for latching the first side arm when the same is raised up to its upright position, and an unlatching mechanism for making the second latching mechanism inoperative when the seat cushion is pivoted to its upright folded position.

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Ayase, Japan

Eiichi Yamano