PROBLEM TO BE SOLVED: To provide a four-wheel drive device for a vehicle capable of transmitting the driving force to a non-slipping wheel by limiting the differential rotation of a differential mechanism.

SOLUTION: The four-wheel drive device for a vehicle has a center differential mechanism and a front wheel side axle differential mechanism. The center differential mechanism is constitute...

PROBLEM TO BE SOLVED: To provide an H-shaped steel excellent in fire resistance in which a flange portion has a tensile strength of 400 Mpa or more at room temperature, a 0.2% proof stress of 157 MPa or more at 600°C, and a Charpy impact absorbed energy of 100 J or more at 0°C, and to provide a production method therefor.

SOLUTION: The steel substantially contains, in mass, 0.03 to 0.15% C,...

PROBLEM TO BE SOLVED: To control start of an internal combustion engine under improperly engaged condition of a brake of a transmission in a hybrid car to which an internal combustion engine, a generator and a drive shaft are connected through the medium of a planetary gear mechanism and in which an electric motor is connected to the drive shaft through the medium of the transmission.

SOLUT...

PROBLEM TO BE SOLVED: To enable output control of a power train by transmission control while adopting power demand control (or torque demand control).

SOLUTION: Based on a detected operating condition, a target output value of the power train including a motor and an automatic transmission is set, and based on the detected operating condition, a transmission ratio of the automatic transmis...

PROBLEM TO BE SOLVED: To more surely operate an internal engine within an appropriate rotation speed range.

SOLUTION: The engine and two motors are controlled with a torque command Tm1* set so that the engine is operated at target rotation speed Ne* by means of engine estimated torque Teest which is set as torque output from the engine when the engine is operated at target torque Te* and wi...

PROBLEM TO BE SOLVED: To provide an oil pump drive mechanism for automatic transmission, capable of reducing friction due to rotation of a sprocket while restricting sprocket mounting backlash.

SOLUTION: This oil pump drive mechanism for an automatic transmission drives an oil pump disposed at a diametrically separated position from a rotary axis of a torque converter. A first sprocket 34 i...

PROBLEM TO BE SOLVED: To provide a power transmission system for a vehicle which improves fuel economy as much as possible in a vehicle having a differential mechanism operable as an electrical continuously variable transmission.

SOLUTION: The power transmission system contains a stepped transmission control means 56 for executing transmission control of an automatic transmission part 20 on...

PROBLEM TO BE SOLVED: To provide a controller capable of maximally stabilizing the rotational speed of an engine even in a gear shift producing a tieup in a drive device for a vehicle having a stepped automatic transmission for shifting by releasing one of two engagement devices and engaging the other and performing shifting in the state of the input shaft of the stepped automatic transmission ...

PROBLEM TO BE SOLVED: To increase stability in half clutch and prevent the amounts of transmission of a drive torque and a back torque from lowering.

SOLUTION: This back torque reducing device comprises an axially movable clutch cam outer 22 disposed on the opposite side of a pressure disk 10 through a clutch sleeve hub 6 in a clutch housing 1, a cam mechanism axially moving the clutch cam ...

PROBLEM TO BE SOLVED: To provide components and sub-assemblies of watch with high strength and dimensional precision, and a watch therewith.

SOLUTION: Gears of numbers 102-106 of a watch 1 are manufactured by direct electrocasting based on photomask patterns of high dimensional precision. Accordingly, dimensional precision of the gears can be enhanced as compared with conventional manufactu...

PROBLEM TO BE SOLVED: To provide a display device where fluctuation of current values of a light-emitting element caused by the ambient temperature change and degradation with time is suppressed.

SOLUTION: A monitoring element 102 driven with a constant current is provided. After detecting a voltage generated in the monitoring element 102, the voltage is applied to a light-emitting element....

PROBLEM TO BE SOLVED: To provide a long lifetime lead-acid storage battery in which deterioration of a reduced-liquid performance is not caused and in which maintenance-free performance is enhanced, even when it is used in a high temperature atmosphere.

SOLUTION: This is the lead-acid storage battery provided with a positive electrode plate, in which a positive electrode active material is ...

PROBLEM TO BE SOLVED: To provide a cathode plate for a sealed lead-acid battery, in which softening and falling-off of an active material and corrosion of a cathode grid which causes lifetime end of the cathode in use for a cycle-use usage, and the sealed lead-acid battery which is superior in the initial capacity and cycle lifetime performance that uses the cathode plate.

SOLUTION: In the ...

PROBLEM TO BE SOLVED: To provide a manufacturing method for an immediate-use type lead-acid battery, having a large discharge capacity at use and that is easy to charge.

SOLUTION: A non-forming clad positive electrode plate and non-formimg negative electrode plate with a bag separator are stacked, and then an ear part is welded together so that an electrode plate group is manufactured. The ...

PROBLEM TO BE SOLVED: To improve a workability and a work environment by enabling easy assembling of a yoke and a coil bobbin without using any adhesive.

SOLUTION: When a yoke 11 is inserted from one end of coil bobbins 13A, 13B into a bobbin hole 20 until positioning parts 17 of first legs 11A, 11B of the yoke 11 abut against one ends of the coil bobbins 13A, 13B; engagements 18 of the fir...

PROBLEM TO BE SOLVED: To suppress unexpected torque shock which might occur at shift operation.

SOLUTION: When shift operation is performed while braking force is still working on a drive shaft at OFF of an accelerator, a conversion factor k is set based on the deviation ΔNm1 between the number of revolutions Nm1 of a motor MG1 and the last value Nm1 (S112), and direct transmission torque T...

PROBLEM TO BE SOLVED: To provide an actuator device which can surely prevent the occurrence of malfunction, noise, etc. due to the flexure of the drive shaft of a motor.

SOLUTION: In the actuator device which is equipped with a case which has a cover for covering a motor storage and a gear storage, a motor which is housed in the motor storage, an output gear which is housed rotatably in the...

The device has at least one gripper carriage (4) guided on chain tracks with gripper systems (41) for acquiring and guiding the sheet and leading edge grippers (5) for acquiring the leading edge of the sheet and placing the sheet on the sheet stack. It has a device (6) for supporting the gripper carriage in the handover region between the gripper systems and the leading edge grippers.

Production of complex high strength components or tools from metal powders or their mixtures by formation of a base body in layers, application of a metal powder or powder mixture in a defined region, bonding of the powder in the selected region to a binder, repetition of these steps until a 3-dimensional base body is formed from the individual layers, and compacting of the base body by sintering ...

The printer has a stack of sheets (4) on a pallet (16) and supported on a vertically moving platform (6). A sensor (19) monitors the height of the stack while a switch (8) monitors the top of the stack and activates the hoist drive, to maintain the top level of the stack. When the residual stack reduces to a set minimum a grid (11) is inserted between the stack and the pallet, by a continuous feed...