Honda Motor Co., Ltd.

Honda Giken Kogyo Kabushiki Kaisha

Cemedine Co., Ltd.

Koji Oda

Naoji Yamaoka

Keiji Otsuka

Sukeyuki Shinotsuka

Nobuhiro Fueki

Makoto Furukawa

Naoki Takahashi

Hideari Kamachi

Hideo Seki

Haruhiko Kobayashi

Daisuke Makino

Shinichi Miyasaka

Atsuhiko Suzuki

Katsutoshi Ando

Junya Tanabe

Jun Kitagawa

Satoshi Ohkubo

Naoki Fukai

Jiro Kirita

Hironori Watanabe

Yuusuke Murachi

Takayuki Hoshino

Hidekazu Ryu

Satoshi Kitsugi

Provided are: a structure adhesive composition which exhibits favorable thread breakage and improves shower resistance, and prevents stringiness when stitch-coating is performed; a method for producing a vehicle structure using the same; and a vehicle structure. A structure adhesive composition exhibiting favorable thread breakage, the structure adhesive composition being a structure adhesive composition containing no liquid rubber component,

Structure adhesive composition exhibiting favorable thread breakage and capable of stitch coating

In a nozzle deposit removing device and a method of nozzle deposit removal, compressed air is supplied to an air supply hole of a negative pressure generating unit from an air supply source, and compressed air is released to outside via an other end of a release hole from the air supply hole, thereby generating a flow of negative pressure directed from a tapered section of a nozzle insertion member toward the release hole via a through-hole. Next, a tip section of the nozzle is inserted into the tapered section of the nozzle insertion member, thereby forming a gap between the tapered section communicating with the through-hole and the tip section of the nozzle.

Nozzle deposit removing device and method of nozzle deposit removal

In a nozzle distance confirming device and a method of nozzle distance confirmation, first, a nozzle distance confirming member together with an exchange section is attached to a tip section of a nozzle main body. Next, a tip section of a needle is caused to abut on the nozzle distance confirming member, whereby the nozzle distance confirming member is exposed from the exchange section and brought into contact with a workpiece. Next, a position of the needle is detected by an eddy current sensor.

Nozzle distance confirming device and method of nozzle distance confirmation

The method of lap-welding of metal plates using a laser beam, wherein at least one of the metal plates is surface-treated, includes putting a metal plate on the other metal plate and forming a gap between the metal plates so that gas generated at the treated surface at the time weld can be dissipated therethrough. A surface-treated first work and a surface-treated second work are placed one on the other and clamped by a clamp with an opening of the clamp centered at the location on the first work to be welded. Then a laser beam is directed to the location to form a weld. The beam is then directed near the inner periphery of the opening to form a heated portion so that the heated portion deflects to form a gap through which the gas generated at the treated surface dissipates thereby reducing gas pressure.

Laser welding method

While steel sheets are positioned and held by a holding mechanism, a first laser beam is applied to a heating region of the steel sheet to space the steel sheet from the other steel sheet by a predetermined distance. A second laser beam is applied to a welding region to weld the steel sheets. An amount of heat applied by the first laser beam, a moving speed of the first laser beam, and a focused spot diameter of the first laser beam are set to keep the sheet irradiated with the first laser beam in an unmelted state and plastically deform the sheet.

Laser beam welding method and apparatus

A welding condition monitoring device for monitoring the welding state of a welding work portion by taking an image thereof by an image sensor having a wide dynamic range and capable of taking an image covering a very bright welding portion and relatively dark portion. The monitoring device selectively emphasizes the outputs of the image sensor for any of luminance areas of the image taken by the image sensor using a sensor output characteristic table and can provide an image clearly showing both the very bright welding portion and the dark bead portion with a sufficient contrast allowing an observer to reliably recognize the objects in the image.

Welding condition monitoring device

Electrodesare contact with an uppermost work Wand energized with electricity so as to thermally expand an electrode contact portion of the work Wor alternatively so as to thermally expand the electrode contact portion of the work Wand a heat transfer portion of an adjoining work Wto which heat is transferred from the electrode contact portion, and then the portions are contracted so as to form a deformed portion Q and the deformed portion Q is separated from the adjoining works WWand a gap H is formed between the works WWwhich are overlapped, and a laser beam L is irradiated at a position where the gap H is large enough to spread the vapor generated by the vaporization of the coating heated.

Laser welding method and device

The position of a hole is measured by image-sensing a holed portion formed in a workpiece and then measuring the central position of the holed portion based on an image of the holed portion on a screen of an image sensing apparatus. A plurality of hole edge points which coincide with a hole edge of the image of the holed portion are picked up. A regression ellipse which represents the image of the holed portion from coordinates of the hole edge points is calculated. The central position of the holed portion is obtained from coordinates of the center of the regression ellipse.

Method for measuring position of hole

An optical cutting image which has a maximum portion in the X-axis direction on the screen of an image sensing device and which extends in the X-axis direction away from the maximum portion so as to expand in the Y-axis direction is measured by means of plural windows to be set on both side portions of the image as seen in the Y-axis direction, equations to represent the image lines of both side portions, and the like. The position of a front end point of the image is measured. A first window which is oblong in the X-axis direction is set such that the front end point is contained therein. A position of the center of gravity of image inside the first window is measured. Second and third windows which are oblong in the Y-axis direction are set at a position which is backwardly away by a predetermined length from the center of gravity of image inside the first window in the X-axis direction to measure the position of the center of gravity of image inside each of the windows. A reference point which has a predetermined correlation with the centers of gravity of image inside the second and third windows is obtained. The above-mentioned plural windows are respectively set in a predetermined positional relationship with this reference point.

Method of image processing in optical measuring apparatus

An optical measuring method for measuring a position of an edge portion of a workpiece uses an optical measuring apparatus having a projector for radiating a slit light on the workpiece and an image sensing device for picturing an optical cutting image drawn by the slit light radiated on the workpiece. The measuring is made from a pictured optical cutting image on a screen of the image sensing device. In the method, coordinates of an end point on a side of an edge portion of the pictured optical cutting image are obtained. Windows are set in predetermined two positions in that portion of the pictured optical cutting image which extends straight. Coordinates of respective centers of gravity of the pictured optical cutting image inside both the windows are obtained. An equation of a first straight line which passes through both the centers of gravity and an equation of a second straight line which crosses the first straight line at right angles and which passes through the end point are obtained. Coordinates of a crossing point of both the straight lines are obtained.

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Tochigi-ken, Japan

Koji Oda