Abstract: A dump truck includes: a vehicle body frame; tires provided to the vehicle body frame and configured to travel the dump truck; and a body supported by the vehicle body frame and configured to be raised and lowered, in which the vehicle body frame includes: a first vertical frame vertically standing in a side view at positions of the tires provided to a first side of the vehicle body frame in a travel direction; and a second vertical frame vertically standing in a side view at positions of the tires provided to a second side of the vehicle body frame in the travel direction, and a mount portion on which the body is mounted is provided on an upper portion of each of the first vertical frame and the second vertical frame.

Abstract: A dump truck includes a suspension and a steering mechanism. The suspension includes: a suspension arm in a form of an upper arm having an up-and-down movable proximal end supported on a vehicle body frame; and a tire support in a form of a casing rotatably attached to a distal end of the upper arm. The steering mechanism includes a steering cylinder having a proximal end attached to the upper arm and a distal end attached to a knuckle arm provided to the tire support.

Abstract: A suspension of a dump truck includes: an upper arm and a lower arm each having a proximal end supported on a vehicle body frame and configured to be up-and-down pivotally movable; a tire support in a form of a casing having an upper portion rotatably connected to a distal end of the upper arm and a lower portion rotatably connected to a distal end of the lower arm; and a suspension cylinder having an upper end rotatably connected to the vehicle body frame and a lower end rotatably connected to the upper arm, in which a king pin shaft connecting a rotation center of the upper arm and the casing with a rotation center of the lower arm and the casing intersects with an axial line of the suspension cylinder in the vicinity of a connecting portion of the upper arm and the casing.

Abstract: There are provided a hot-dip galvanized steel pipe in which the plating layer thereof is less liable to peel off even if the steel pipe is worked, and a method of manufacturing the hot-dip galvanized steel pipe. The hot-dip galvanized steel pipe includes a steel pipe and the plating layer formed on the surface of the steel pipe. Throughout the entire depth of plating layer, the fn defined by the following formula is at least 99.9: fn=Fe+Al+Zn where, the symbol of an element in the formula represents the content (mass %) of that element in the plating layer.

Abstract: A dump truck includes: a vehicle body frame; tires provided to the vehicle body frame and configured to travel the dump truck; and a body supported by the vehicle body frame and configured to be raised and lowered, in which the vehicle body frame includes: a first vertical frame vertically standing in a side view at positions of the tires provided to a first side of the vehicle body frame in a travel direction; and a second vertical frame vertically standing in a side view at positions of the tires provided to a second side of the vehicle body frame in the travel direction, and a mount portion on which the body is mounted is provided on an upper portion of each of the first vertical frame and the second vertical frame.

Abstract: A suspension of a dump truck includes: an upper arm and a lower arm each having a proximal end supported on a vehicle body frame and configured to be up-and-down pivotally movable; a tire support in a form of a casing having an upper portion rotatably connected to a distal end of the upper arm and a lower portion rotatably connected to a distal end of the lower arm; and a suspension cylinder having an upper end rotatably connected to the vehicle body frame and a lower end rotatably connected to the upper arm, in which a king pin shaft connecting a rotation center of the upper arm and the casing with a rotation center of the lower arm and the casing intersects with an axial line of the suspension cylinder in the vicinity of a connecting portion of the upper arm and the casing.

Abstract: A dump truck includes a suspension and a steering mechanism. The suspension includes: a suspension arm in a form of an upper arm having an up-and-down movable proximal end supported on a vehicle body frame; and a tire support in a form of a casing rotatably attached to a distal end of the upper arm. The steering mechanism includes a steering cylinder having a proximal end attached to the upper arm and a distal end attached to a knuckle arm provided to the tire support.

Abstract: An electromagnetic contactor manufacturing method includes a step of forming an arc extinguishing chamber connection portion by simultaneously brazing a fixed terminal and a pipe penetrating and fixed to a tub-shaped arc extinguishing chamber, and a tube portion of a first connection member in communication with an open end portion of the arc extinguishing chamber; a step of forming a cap connection portion having a flange portion extending outward in a radial direction from an open end of a bottomed tubular cap; and a step of disposing a flange portion of the first connection member and a flange portion of a second connection member in close contact with a base plate in which an aperture hole is formed, and welding each of the flange portions to the base plate so that the arc extinguishing chamber connection portion and the cap connection portion are in communication through the aperture hole.

Abstract: There are provided a hot-dip galvanized steel pipe in which the plating layer thereof is less liable to peel off even if the steel pipe is worked, and a method of manufacturing the hot-dip galvanized steel pipe. The hot-dip galvanized steel pipe includes a steel pipe and the plating layer formed on the surface of the steel pipe. Throughout the entire depth of plating layer, the fn defined by the following formula is at least 99.9: fn=Fe+Al+Zn where, the symbol of an element in the formula represents the content (mass %) of that element in the plating layer.

Abstract: An electromagnetic contactor includes a base plate having an aperture hole; an arc extinguishing chamber formed by a fixed terminal support insulating substrate and a cylinder portion; and a bottomed tubular cap in which one end thereof is open. An arc extinguishing chamber connection portion is formed by the arc extinguishing chamber and a first connection member having a flange portion. A cap connection portion is formed by the cap and a second connection member having a tube portion and a flange portion. The flange portion of the first connection member is attached to one surface of the base plate, and the flange portion of the second connection member is attached to the other surface of the base plate, so that the arc extinguishing chamber connection portion and the cap connection portion are in communication through the aperture hole of the base plate.

Abstract: An electromagnetic contactor includes a base plate having an aperture hole; an arc extinguishing chamber formed by a fixed terminal support insulating substrate and a cylinder portion; and a bottomed tubular cap in which one end thereof is open. An arc extinguishing chamber connection portion is formed by the arc extinguishing chamber and a first connection member having a flange portion. A cap connection portion is formed by the cap and a second connection member having a tube portion and a flange portion. The flange portion of the first connection member is attached to one surface of the base plate, and the flange portion of the second connection member is attached to the other surface of the base plate, so that the arc extinguishing chamber connection portion and the cap connection portion are in communication through the aperture hole of the base plate.

Abstract: An electromagnetic contactor has a base plate having an aperture hole; an arc extinguishing chamber including a fixed terminal having a vent portion and a pipe obliquely inserted from outside a wall surface and connecting the vent portion; and a bottomed tubular cap in which one end thereof is open. An arc extinguishing chamber connection portion is formed by the arc extinguishing chamber and a first connection member having a tube portion connected to the arc extinguishing chamber and a flange portion contacting with the base plate. A cap connection portion is formed by the cap and a second connection member having a tube portion connected to the cap and a flange portion connected to the base plate. The arc extinguishing chamber connection portion and the cap connection portion are in communication through the aperture hole of the base plate.

Abstract: An electromagnetic contactor has a base plate having an aperture hole; an arc extinguishing chamber including a fixed terminal having a vent portion and a pipe obliquely inserted from outside a wall surface and connecting the vent portion; and a bottomed tubular cap in which one end thereof is open. An arc extinguishing chamber connection portion is formed by the arc extinguishing chamber and a first connection member having a tube portion connected to the arc extinguishing chamber and a flange portion contacting with the base plate. A cap connection portion is formed by the cap and a second connection member having a tube portion connected to the cap and a flange portion connected to the base plate. The arc extinguishing chamber connection portion and the cap connection portion are in communication through the aperture hole of the base plate.

Abstract: An electromagnetic contactor manufacturing method includes a step of forming an arc extinguishing chamber connection portion by simultaneously brazing a fixed terminal and a pipe penetrating and fixed to a tub-shaped arc extinguishing chamber, and a tube portion of a first connection member in communication with an open end portion of the arc extinguishing chamber; a step of forming a cap connection portion having a flange portion extending outward in a radial direction from an open end of a bottomed tubular cap; and a step of disposing a flange portion of the first connection member and a flange portion of a second connection member in close contact with a base plate in which an aperture hole is formed, and welding each of the flange portions to the base plate so that the arc extinguishing chamber connection portion and the cap connection portion are in communication through the aperture hole.

Abstract: An electromagnetic contactor includes a base plate having an aperture hole; an arc extinguishing chamber formed by a fixed terminal support insulating substrate and a cylinder portion; and a bottomed tubular cap in which one end thereof is open. An arc extinguishing chamber connection portion is formed by the arc extinguishing chamber and a first connection member having a flange portion. A cap connection portion is formed by the cap and a second connection member having a tube portion and a flange portion. The flange portion of the first connection member is attached to one surface of the base plate, and the flange portion of the second connection member is attached to the other surface of the base plate, so that the arc extinguishing chamber connection portion and the cap connection portion are in communication through the aperture hole of the base plate.

Abstract: An electromagnetic contactor has a base plate having an aperture hole; an arc extinguishing chamber having a fixed terminal and a pipe; and a bottomed tubular cap in which one end thereof is open. An arc extinguishing chamber connection portion is formed by the arc extinguishing chamber and a first connection member having a tube portion connected to the arc extinguishing chamber and a flange portion contacting with the base plate. A cap connection portion is formed by the cap and a second connection member having a tube portion connected to the cap and a flange portion connected to the base plate. The flange portions of the first and second connection members are attached to one surface and the other surface of the base plate accordingly. The arc extinguishing chamber connection portion and the cap connection portion are in communication through the aperture hole of the base plate.

Abstract: A differential signal transmitting apparatus for transmitting a differential signal through two transmission lines. The apparatus includes: transmitting-side board connecting terminals that are provided for each of the transmission lines, and are able to connect a transmitting circuit for transmitting a differential signal; receiving circuit connecting terminals that are provided at a far end of a daisy-chain connection extending from the transmitting-side board connecting terminals provided for each of the transmission lines, and connect the receiving circuit for receiving the differential signal; and an undefined-logic preventing circuit that is connected at a near end of the daisy-chain connection and outputs a prescribed potential difference to the receiving circuit connecting terminals when the transmitting circuit is not connected to the transmitting circuit connecting terminals.

Abstract: A recipient apparatus and a file server apparatus respectively receive shared mails which are generated by performing secret sharing of an electronic mail from a sender apparatus by a mail server apparatus. The file server apparatus authenticates the recipient apparatus based on an account and transmits shared data to the recipient apparatus when authentication is successful. The recipient apparatus restores the electronic mail with the shared data and shared data in the shared mail which is previously received.

Abstract: A differential signal transmitting apparatus for transmitting a differential signal through two transmission lines. The apparatus includes: transmitting-side board connecting terminals 7a and 7b that are provided for each of the transmission lines 5a and 5b, and are able to connect a transmitting circuit 1 for transmitting a differential signal; receiving circuit connecting terminals that are provided at a far end of a daisy-chain connection extending from the transmitting-side board connecting terminals 7a and 7b provided for each of the transmission lines 5a and 5b, and connect the receiving circuit 2 for receiving the differential signal; and an undefined-logic preventing circuit 31 that is connected at a near end of the daisy-chain connection and outputs a prescribed potential difference to the receiving circuit connecting terminals when the transmitting circuit 1 is not connected to the transmitting circuit connecting terminals 7a, 7b.

Abstract: The present inventors used microarrays to identify a novel gene from cDNA clones showing significantly different gene expression in normal tissues compared to psoriasis lesion tissues. This gene was named secretory Ly-6/uPAR-related protein-2 (SLURP-2). Quantitative real-time RT-PCR analysis using total RNA extract was used to compare SLURP-2 gene expression between psoriatic lesional skin, non-lesional skin, and normal skin, to indicate that the SLURP-2 gene is significantly upregulated in psoriasis lesions. Thus, SLURP-2 gene can be used as a diagnostic marker for inflammatory skin diseases such as psoriasis.