Abstract: A vehicle body structure includes a support member of a vehicle body, and a reinforcement member disposed along a longitudinal direction of the support member of the vehicle body to reinforce the support member of the vehicle body. The reinforcement member is a processed product formed by shaping a tubular body, and includes a flange portion that protrudes on an outer peripheral portion and that is formed in the longitudinal direction of the support member of the vehicle body. The flange portion is joined to the support member of the vehicle body at a location other than locations where the support member of the vehicle body is joined to other members different from the reinforcement member.

Abstract: A metal pipe forming method includes: disposing a metal pipe material having a hollow shape between a pair of dies; and forming a metal pipe including a pipe portion and a flange portion by expanding the metal pipe material by supplying a fluid and bringing the metal pipe material into contact with the pair of dies. In the forming of the metal pipe, a gap which is positioned between a pair of inner surfaces of the flange portion and communicates with an internal space of the pipe portion is formed, and the flange portion is provided with a through-hole connected to the gap.

Abstract: A forming device includes a blow-forming die and a shielding member. The blow-forming die includes a first die that protrudes from a first die holder towards a second die holder and a second die that protrudes from the second die holder towards the first die holder. The shielding member is configured to extend from the first die holder to the second die holder before the blow-forming die commences forming a flange part of a pipe in a sub-cavity part. The sub-cavity part is between a main cavity part and the shielding member. The shielding member is separated from the first die and the second die.

Abstract: A bending meshing type gear device includes a wave generator, an external gear that is bent and deformed by the wave generator, an internal gear that meshes with the external gear, and a wave generator bearing disposed between the wave generator and the external gear, in which an inner ring rolling surface on which a rolling element of the wave generator bearing rolls includes a hardened layer, and the hardened layer has a characteristic that a surface hardness after operating for a predetermined time is increased compared to a surface hardness before operation.

Abstract: A reduction gear includes a reduction mechanism and a component which constitutes the reduction gear and in which a cavity portion is provided. The reduction mechanism is not provided in the cavity portion. The component includes a reinforcement structure which is provided to partially fill an inside of the cavity portion and forms a void, which is filled with air or fluid, in the cavity portion. The cavity portion includes only one opening with respect to a space in which the reduction mechanism is accommodated or with respect to an external space, or the cavity portion is provided so as to form a closed space inside the component.

Abstract: A forming system includes: a forming apparatus which supplies gas into a cylindrical metal pipe material having a welded portion to expand the metal pipe material; a supply device for supplying the metal pipe material to the forming apparatus; and a control device for controlling an operation of the supply device, in which in a case where a position where a distance from a center of the metal pipe material is the longest, on a surface of the die, when viewed from an extension direction of the metal pipe material in a state where the metal pipe material is disposed between the dies, is a longest position, the control device includes a control unit which controls supply of the metal pipe material to the forming apparatus such that the welded portion is not located on a straight line connecting the longest position and the center of the metal pipe material.

Abstract: A forming device which expands a metal pipe material to form a metal pipe having a pipe portion and a flange portion includes first and second dies paired with each other and including pipe forming surfaces for forming the pipe portion and flange forming surfaces for forming the flange portion, a drive unit that drives at least one of the first and second dies, and a controller that controls the drive unit, in which, on at least one of the flange forming surfaces of the first and second dies, a protrusion portion protruding by an amount not to abut against the other flange forming surface when the dies are closed is formed and the controller controls the drive unit to form a thin wall portion at which a thickness of the flange portion becomes partially small at the flange portion by the protrusion portion pressing the flange portion.

Abstract: Provided is a vehicle structure including: a pipe member forming a part of a frame of a vehicle; and a wire-shaped body having flexibility, in which the pipe member includes a pipe portion forming a pipe shape and a flange portion formed to protrude from the pipe portion, and is formed of one member in which the pipe portion and the flange portion are continuous with each other, and the wire-shaped body is disposed in at least one of a first state where the wire-shaped body is disposed along the flange portion and a second state where the wire-shaped body strides over the flange portion.

Abstract: Provided is a forming device that forms a heated metal material, the forming device including: a die that performs quench forming by coming into contact with the metal material; a cooling unit that is provided inside the die to cool the die; and a temperature sensor that detects a temperature of the die, in which the cooling unit adjusts a cooling capacity on the basis of a detection result of the temperature sensor.

Abstract: There is provided a reinforcement member for a vehicle which includes a cylindrical body section having a continuously closed cross section intersecting with a longitudinal direction. The cylindrical body section has a first surface, a second surface, and a third surface. The third surface has a fourth surface extending away from the second surface, and a fifth surface connecting the fourth surface and the first surface to each other. In a sectional view when viewed in the longitudinal direction, in a case where a virtual line connecting a first intersection portion where the first surface and the third surface intersect with each other and a second intersection portion where the second surface and the third surface intersect with each other is set, a third intersection portion where the fourth surface and the fifth surface intersect with each other protrudes outward with respect to the virtual line.

Abstract: A speed reducer includes a reduction mechanism, which includes an internal gear and an external gear meshing with the internal gear, and a first member, and transmits rotating motion decelerated by the reduction mechanism to a driven member. The speed reducer includes a protection member disposed between the first member and the driven member. The first member is formed of a material having specific gravity lower than at least one of the internal gear and the external gear and hardness lower than the driven member. The protection member is formed of a material having hardness higher than the first member.

Abstract: A forming system forming a metal pipe by expanding a metal pipe material, includes: a main body part having a forming die for forming the metal pipe; an electrode causing a current to flow through the metal pipe material disposed in the forming die such that the metal pipe material is heated; a power supply unit disposed at a position separated from the main body part and supplying power to the electrode; and a power supply line connecting the power supply unit and the electrode, in which the power supply line includes a lower-side passing portion passing through a lower side of a placing surface on which the main body part is placed, a first connection portion drawn to an upper side of the placing surface and connecting the lower-side passing portion and the electrode, and a second connection portion connecting the lower-side passing portion and the power supply unit.

Abstract: A vehicle body structure includes a support member of a vehicle body, and a reinforcement member disposed along a longitudinal direction of the support member of the vehicle body to reinforce the support member of the vehicle body. The reinforcement member is a processed product formed by shaping a tubular body, and includes a flange portion that protrudes on an outer peripheral portion and that is formed in the longitudinal direction of the support member of the vehicle body. The flange portion is joined to the support member of the vehicle body at a location other than locations where the support member of the vehicle body is joined to other members different from the reinforcement member.

Abstract: An information providing device provides information to a formed product formed by a forming device including a die for forming a metal material, in which the information is provided to the formed product after being formed by the forming device, and the information is information from which at least forming conditions of the formed product are acquirable. The information providing device includes an information acquisition unit that acquires the forming conditions.

Abstract: Provided is a forming device that forms a heated metal material with a forming die, in which the forming die includes an angular portion formed by a first forming surface and a second forming surface that intersect each other in a cross-sectional view, the second forming surface is movable relative to the first forming surface, and during the forming, the second forming surface moves in a pressing direction in which the metal material is pressed in a stage before the angular portion and the metal material come into contact with each other.

Abstract: A forming device which expands a metal pipe material to form a metal pipe having a pipe portion and a flange portion includes a hardness lowering portion which lowers a hardness of the flange portion to be lower than a hardness of the pipe portion.

Abstract: A reduction gear includes a reduction mechanism and a component which constitutes the reduction gear and in which a cavity portion is provided. The reduction mechanism is not provided in the cavity portion. The component includes a reinforcement structure which is provided to partially fill an inside of the cavity portion and forms a void, which is filled with air or fluid, in the cavity portion. The cavity portion includes only one opening with respect to a space in which the reduction mechanism is accommodated or with respect to an external space, or the cavity portion is provided so as to form a closed space inside the component.

Abstract: Provided is a flanged member that has a tubular shape and includes a flange portion, the flanged member including: a cross-section changing portion of which a cross-sectional shape changes along an axial direction of the flanged member, in which in any two cross-sections in the cross-section changing portion, a perimeter of one cross-section is 1.25 times or less a perimeter of the other cross-section.

Abstract: A forming device of forming a metal pipe having a pipe portion includes a first die and a second die constituting a first cavity portion configured to form the pipe portion and a second cavity portion configured to form a flange portion, a drive mechanism configured to move at least one of the first die and the second die, and a gas supply unit configured to supply a gas into a metal pipe material which is held between the first die and the second die and is heated, in which each of the first die and the second die has flange forming surfaces which face each other and constitute the second cavity portion, and a protrusion portion, which protrudes from one flange forming surface to the other flange forming surface, is formed on at least one of the flange forming surfaces of the first die and the second die.

Abstract: The controller controls the gas supply of the gas supply unit so as to maintain a pressure in a metal pipe material at a first pressure when a gas is supplied into the metal pipe material which is formed into a pipe portion in a main cavity portion in a state where an upper die and a lower die are joined to each other. It is possible to prevent pressure drop in the pipe portion caused by cooling of the pipe portion due to a contact between the dies, and the pipe portion. Thus, it is possible to suppress a decrease in a force for pressing the pipe portion against the dies. It is possible to suppress a decrease in adhesion between the pipe portion and the dies when the metal pipe is formed, and it is possible to suppress occurrence of variations in hardenability in the pipe portion.