Matsushita Electric Industrial Co., Ltd.

Masashi Sugimoto

Kaoru Shimizu

Tomio Shiota

Kazuhiko Kodama

Toshiharu Hikida

Kiyoshi Sakai

Yoshiaki Okihara

Katsunori Yahiro

Syuji Isono

Kazuo Yoshida

A hollow structural component which includes an integral structure, partition walls intersecting each other within the integral structure, and a plurality of independent hollow portions formed as specified by the partition walls so as to be arranged within the integral structure. The integral structure is formed into one piece by one-shot molding or by one injection molding die which is caused to slide against each other between its stationary side and movable side for post-forming, whereby weight reduction of the hollow structural component, reduction in the amount of resin used, reduction in the number of parts involved, and improvement in the workability for assembling may be achieved with consequent cost reduction.

Hollow structural component

A television receiver cabinet is provided including a plurality of wall members and at least one speaker horn sub-assembly, wherein at least one speaker unit is contained to form a horn structure. The loudspeaker horn sub-assembly utilizes at least part of the wall members, in its original place, as a component for structuring the sub-assembly.

Loudspeaker arrangement in television receiver cabinet

A vibration or shock absorbing member which is composed of a material capable of effecting injection molding such as plastics, rubber, ceramics, metallic powder mixed and kneaded with a specified binder, or glass powder mixed and kneaded with a specified binder, and includes an integral structure, a plurality of protrusions formed at least on one main flat surface of the integral structure, and a plurality of independent hollow portions provided symmetrically or in an aligned state within the integral structure through intersecting partition walls. Such integral structure is molded as one unit by one-shot molding (molding at one time) or by a single molding die for expanding the range of selection for materials and spring constants so as to achieve freedom in the choice of shapes and reduction in weight.

Vibration or shock absorbing member

Growing community of inventors

Suita, Japan

Masashi Sugimoto