Abstract: Provided is a method for strengthening a steel plate member employing a heating and quenching treatment. The method includes a first heating step, a partial cooling step, a second heating step and an entire cooling step, each step conducted in the written order.

Abstract: A misfueling preventing apparatus discriminates a fuel filler nozzle based on an outer diameter of the fuel filler nozzle. The misfueling preventing apparatus includes a base, a first link arm, a second link arm, a flapper and a stopper. The first link arm has a first trigger projection. The second link arm has a second trigger projection. If the fuel filler nozzle of light diesel oil pushes the first trigger projection and the second trigger projection, the first link arm and second link arm swing to a direction to which the first link arm and second link arm open to, placing the flapper in an openable state.

Abstract: Provided is a method for strengthening a steel plate member employing a heating and quenching treatment. The method includes a first heating step, a partial cooling step, a second heating step and an entire cooling step, each step conducted in the written order.

Abstract: Providing a bumper absorbing large amount of impact energy with respect to both a light collision and a heavy collision, and preventing the reinforcement beam from bending and protruding backward at a portion where an obstacle collides and from displacing backward in this protruding state. Provided is a bumper for vehicles including a reinforcement beam made of metal and a pair of support members having a hollow cross section, protruding from a vehicle frame, and supporting the reinforcement beam therebetween. A quenched region is provide over a portion including a middle of the reinforcement beam. Unquenched portions are provided on the pair of connecting portions or a pair of adjacent portions inside the pair of connecting portions.

Abstract: When applying a current to a plated steel plate, plating often biases. In the present invention, when applying a current, the current is applied with a flux guiding member arranged in proximity to a side surface of the plated steel plate. The direction of the magnetic flux at the side surface of the plated steel plate is corrected, and the bias of the plating is efficiently suppressed.

Abstract: A bumper for vehicles having a high productivity and a large energy absorption amount in which the reinforcement beam is prevented from buckling. The bumper includes a reinforcement beam made of steel and support members protruding from a vehicle frame and supporting the reinforcement beam therebetween. The reinforcement beam is provided with a quenched portion provided at least over a portion where an obstacle hits the reinforcement beam. The reinforcement beam is further provided with unquenched portions next to the portion where the obstacle hits the reinforcement beam to sandwich the quenched portion. A mechanical strength of the unquenched portions is smaller than the mechanical strength of the quenched portion.

Abstract: Providing a bumper absorbing large amount of impact energy with respect to both a light collision and a heavy collision, and preventing the reinforcement beam from bending and protruding backward at a portion where an obstacle collides and from displacing backward in this protruding state. Provided is a bumper for vehicles including a reinforcement beam made of metal and a pair of support members having a hollow cross section, protruding from a vehicle frame, and supporting the reinforcement beam therebetween. A quenched region is provide over a portion including a middle of the reinforcement beam. Unquenched portions are provided on the pair of connecting portions or a pair of adjacent portions inside the pair of connecting portions.

Abstract: Present invention provides a fuel filler port preventing a flowing back fuel from overflowing from the fuel filler port. The fuel filler port includes a first member and a second member. The first member and the second member are provided from upward to downward direction in written order. The second member is provided with a plurality of guiding projections and a fuel outlet provided between the adjacent projections. Since an inner diameter of the first opining is equal to an outer diameter of the fuel filler nozzle inserted, the flowing back fuel hardly flows through a gap between the first opening and the fuel filler nozzle. The flowing back fuel is discharged to the outside of a fuel filler pipe via the fuel outlet.

Abstract: A bumper reinforcement member including a front reinforcement member and a back reinforcement member, wherein the front reinforcement member includes a front intermediate face, which becomes a bumper front face, and a front groove arranged above and below the front intermediate face and that recesses from the bumper front face side towards a bumper rear face side; the back reinforcement member includes a back intermediate face positioned on a front side than bottom faces of both upper and lower front grooves, and a back groove arranged above and below the back intermediate face and that recesses from the bumper front face side towards the bumper rear face side; and the front reinforcement member and the back reinforcement member have the front groove contained in the back groove without bringing at least the bottom faces of the front groove and the back groove into surface contact with each other.

Abstract: The present invention provides a steering support frame composed of a deck cross member and fastening brackets attached to right and left ends of the deck cross member, and structured by fastening the fastening brackets to respective fitting parts provided in right and left vehicle body frames so as to bridge the deck cross member between the right and left vehicle body frames. To connect the deck cross member and the fastening brackets, one of the ends of the deck cross member is welded to both of a body plate and a surface contact plate of the fastening bracket on a driver seat side, and the other end of the deck cross member is welded only to a body plate of the fastening bracket on a passenger seat side, whereby the deck cross member has a strength difference between the driver seat and passenger seat sides.

Abstract: The present invention provides a fastening bracket for fastening right and left ends of a deck cross member to respective fitting parts of a vehicle body frame. The fastening bracket includes a body plate to which one of the ends of the deck cross member is connected, a surface contact plate to which a fastening nut corresponding to a bolt to be inserted into corresponding one of the fitting parts of the vehicle body frame is fixed, the surface contact plate being provided in the body plate, a connection plate that is a part for connecting the body plate and the surface contact plate, the connection plate having a width in a direction perpendicular to a connecting direction of the body plate and the surface contact plate equal to or smaller than the surface contact plate, and a demarcating slit for demarcating the body plate and the surface contact plate.

Abstract: A fuel filler port closing apparatus including an opening (44) of a filler neck or an opening (211) of a nozzle guide (21) securely and reliably sealed, even when a seal packing (325) sags, bends or deflects. Sealing is realized by a flapper (3) including a rotation plate (31) which rotates and flaps, and a seal plate (32) having the seal packing (325) moving freely in an up and down direction with respect to the rotation plate (31).

Abstract: When applying a current to a plated steel plate, plating often biases. In the present invention, when applying a current, the current is applied with a flux guiding member arranged in proximity to a side surface of the plated steel plate. The direction of the magnetic flux at the side surface of the plated steel plate is corrected, and the bias of the plating is efficiently suppressed.

Abstract: An annular surface of a retainer made of stainless steel plate and an annular surface of an inlet pipe made of zinc plated steel plate are surface contacted. Seam welding is then applied within a surface contacting region of the retainer and the inlet pipe to form a gap at both ends of the surface contacting region, and a zinc plated layer of the inlet pipe is melted to extrude zinc to the gap thus filling the gap with the zinc. According to such manufacturing method, a fuel filler tube excelling in rust preventing performance can be provided without performing a separate rust preventing countermeasure.

Abstract: Problems to be solved: To provide a fuel filler port closing apparatus that can be adapted to fuel filling nozzles of various shapes and that excels in operability. Means to solve the problems: Problems are solved through the fuel filler port closing apparatus adapting two-action fuel filling operation. The first action is to open a cover 5 closing an opening 44 of a fuel filler port by pushing a slider 53 with fuel filling nozzle 71, and the second action is to push and open a flapper 3 closing an opening 211 of a nozzle guide.

Abstract: A bumper reinforcement member 1 includes a small groove 2 and a large groove 3. The large groove 3 is arranged to encompass the small groove 2 inside the groove. When the bumper reinforcement member 1 is deformed, directions of the deformation of the lateral face of the small groove and the deformation of the lateral face of the large groove are oppose to each other, and thus the peak load and the energy absorption amount of the bumper reinforcement member 1 can be increased with a simple configuration.

Abstract: The present invention provides a fastening bracket for fastening right and left ends of a deck cross member to respective fitting parts of a vehicle body frame. The fastening bracket includes a body plate to which one of the ends of the deck cross member is connected, a surface contact plate to which a fastening nut corresponding to a bolt to be inserted into corresponding one of the fitting parts of the vehicle body frame is fixed, the surface contact plate being provided in the body plate, a connection plate that is a part for connecting the body plate and the surface contact plate, the connection plate having a width in a direction perpendicular to a connecting direction of the body plate and the surface contact plate equal to or smaller than the surface contact plate, and a demarcating slit for demarcating the body plate and the surface contact plate.

Abstract: The present invention provides a steering support frame composed of a deck cross member and fastening brackets attached to right and left ends of the deck cross member, and structured by fastening the fastening brackets to respective fitting parts provided in right and left vehicle body frames so as to bridge the deck cross member between the right and left vehicle body frames. To connect the deck cross member and the fastening brackets, one of the ends of the deck cross member is welded to both of a body plate and a surface contact plate of the fastening bracket on a driver seat side, and the other end of the deck cross member is welded only to a body plate of the fastening bracket on a passenger seat side, whereby the deck cross member has a strength difference between the driver seat and passenger seat sides.

Abstract: A bumper reinforcement member including a front reinforcement member and a back reinforcement member, wherein the front reinforcement member includes a front intermediate face, which becomes a bumper front face, and a front groove arranged above and below the front intermediate face and that recesses from the bumper front face side towards a bumper rear face side; the back reinforcement member includes a back intermediate face positioned on a front side than bottom faces of both upper and lower front grooves, and a back groove arranged above and below the back intermediate face and that recesses from the bumper front face side towards the bumper rear face side; and the front reinforcement member and the back reinforcement member have the front groove contained in the back groove without bringing at least the bottom faces of the front groove and the back groove into surface contact with each other.

Abstract: This invention provides a fuel filler cap that can release an outer cap from an inner cap without influences of direction of the external force when it applied. The fuel filler cap 1 comprises the outer cap 11 constructed by an upper face portion 112, a skirt portion 113 extending from the outer circumference of the upper face portion 112 and a plurality of wedge-shaped projection 111 formed on the inner face of the skirt portion 113; the pressing plate 15; and the inner cap 13 constructed by a supporting plate 14 having an annular slant 142, a seal ring 12 and annular groove 146 defined by the lower face of the pressing plate 15 laid over the supporting plate 14 and by the annular slant 142.