Prime Polymer Co., Ltd.

Daikyonishikawa Corporation

Daikyo Co., Ltd.

Gp Daikyo Corporation

Toshifumi Sakai

Masaharu Okamura

Minoru Sugawara

Takeharu Suga

Yoshiaki Saito

Hirofumi Goda

A process for producing a sound absorber having skin layers constituting front and back surfaces and, interposed between the skin layers, a void layer having a plurality of pin formed holes, each hole having a depth which is enough to penetrate one of the skin layers and is not enough to reach the other skin layer. The sound absorber is formed of a resin material containing 2 to 60 wt % of reinforcing fibers with a length of 2 to 100 mm.

Process for producing sound absorber and produced by the process, sound absorber and sound absorbing structure

A sound absorbing bodyhas a molded bodyincluding two unexpanded layersand an expanded layerhaving a number of voids and held between these unexpanded layers, a plurality of holesA of a depth that passes through the unexpanded layerand does not reach the other unexpanded layerare formed at any positions on the molded body, a cross-sectional area of the holeA is in the range from 0.785 to 314 mm, and the pitch is 1 mm or larger. Laminating a plurality of materials is not required, and both the sound absorbing capability and sound insulating capability can be secured by integral molding, and further, only unpleasant sounds can selectively be absorbed.

Sound absorbing body, sound absorbing structural body, and method of manufacturing these bodies

An impact absorbing mechanism for absorbing an impact load input between receiving portions at a predetermined distance from each other is provided; in the impact absorbing mechanism, a dispersing transferring portion for dispersing and transferring the input impact load in two directions is formed by connecting respective one end sides of two load transferring members, impact absorbing members for absorbing dispersed impact loads in directions along the transferring members and supported by receiving stopping portions are disposed on the other end sides of the respective load transferring members, a connecting portion of the load transferring members is positioned to be closer to load input sides than to the other end sides of the respective load transferring members, and the input impact load is dispersed and absorbed in two directions; thereby, it is possible to obtain an impact absorbing mechanism by which impact energy absorbing performance in a displacement initial stage is enhanced to carry out efficient impact absorption and it is possible to relatively easily cope with changes in required impact absorbing properties.

Impact absorbing mechanism and bumper reinforcement having the mechanism

A bumper reinforcement has a generally reversely positioned U-shaped cross section, which is adapted to be combined with a bumper face having a generally U-shaped cross section to constitute a bumper. The bumper reinforcement is removably assembled to within an opening of the bumper face with an opening side of the bumper reinforcement directed toward the bumper face. Also, the bumper reinforcement has a plurality of vertical reinforcing ribs that extend vertically to link upper face portion and lower face portion of the bumper reinforcement with each other, and for segments partitioned by the vertical reinforcing ribs, diagonal reinforcing ribs extend diagonally in the segments and stretched diagonally across vertical reinforcing ribs on both sides of each segment, linking them with each other. The vertical reinforcing ribs and the diagonal reinforcing ribs are integrally molded in the bumper reinforcement.

Bumper reinforcement

Blowing louver for air conditioners provides plural swinging fins for shifting the direction of the wind conditioned. Each fin has first and second swinging axes which are pivotably supported by first and second link members. The first link member is manually operated so as to swing fins about respective second axes and the second link member is driven reciprocally by a driving mechanism so as to swing fins about respective first axes automatically.

Growing community of inventors

Higashihiroshima, Japan

Toshifumi Sakai