Patent application number | Description | Published |
20080234081 | Pretension loading method for power transmission chain and pretension loading apparatus - There is provided a pretension loading method for a power transmission chain, in which a chain with an endless loop shape having a plurality of laminated link plates bendably connected to each other by pin members is wound around a plurality of rollers and the chain is endlessly rotated while a load is loaded on the chain so as to load pretension on the chain, the method including the steps of: (a) maintaining the chain in a substantial tension state without a slack by controlling tension of at least one of the plurality of rollers while endlessly rotating the chain; (b) measuring a length of the chain in the tension state; (c) stretching the chain to a target length by controlling a displacement of the at least one of the rollers; (d) maintaining the chain in a substantial tension state without a slack by controlling tension of the at least one of the rollers; and (e) measuring the length of the chain in the tension state. At this time, the steps (c) to (e) are repeated until a difference between the target length and the length of the chain which is measured in the step (e) is less than a predetermined value. | 09-25-2008 |
20080254927 | Power Transmission Chain and Power Transmission Device Using the Same - A power transmission chain used in a power transmission device of the present invention includes: a plurality of link plates having through holes; and a plurality of pin members that are inserted through said through holes and connect said plurality of link plates to one another. An amount of skew in a chain width direction per chain length of 200 mm is 1 to 2 mm in the power transmission chain. Thus, even if misalignment occurs in the power transmission chain, occurrence of abnormal wear and reduction in transmission efficiency can be effectively prevented. | 10-16-2008 |
20090029817 | POWER TRANSMISSION CHAIN AND POWER TRANSMISSION APPARATUS - A power transmission chain ( | 01-29-2009 |
20090105025 | Power transmission chain and power transmission apparatus - When disposing pins of different shapes at random, pins of small involute base circle radius are made not to be arranged contiguously, pins of relatively small length are made not to be arranged contiguously, and pins of relatively outward offset are made not to be arranged contiguously. | 04-23-2009 |
20090105026 | Power transmission chain and power transmission apparatus - In a minimum operation radius, long links are present one or more nodes at all times, and an upper limit to the number of long links is such that long links are present half or less of nodes that bite into a pulley. | 04-23-2009 |
20090118042 | Power Transmission Chain and Power Transmission Apparatus - A power transmission chain ( | 05-07-2009 |
20100035721 | Controller of contionously variable transmission, flow control method, and flow controller - A sensor is placed in proximity to a chain of a continuously variable transmission, and a pulse is output by detecting pins. Moreover, there is provided a control section that determines theoretical speed of the chain from numbers of input and output rotations of the continuously variable transmission; that determines actual speed of the chain from an output from the sensor; that determines slippage from the speeds; and that controls clamping force of the continuously variable transmission so as to make slippage close to a reference value. | 02-11-2010 |
20100099531 | POWER TRANSMISSION CHAIN AND POWER TRANSMISSION SYSTEM INCLUDING THE SAME CHAIN - A power transmission chain includes a plurality of link units which are aligned in a chain advancing direction, and each link unit includes a plurality of link plates which are aligned in a chain width direction W. The plurality of link plates include link plates which are punched out of a material by pressing to first and second specifications. A punching direction of the link plates to the first specification and a punching direction of the link plates to the second specification are made opposite to each other. | 04-22-2010 |
20100203988 | POWER TRANSMISSION CHAIN AND POWER TRANSMISSION SYSTEM - There are provided a power transmission chain which can reduce a noise level further by eliminating unfavorable combinations from a random arrangement of combinations of pitch lengths and pin shapes and a power transmission system using the same power transmission chain. | 08-12-2010 |
20100248881 | POWER TRANSMISSION CHAIN - The invention provides a power transmission chain in which abnormal noise can be reduced. | 09-30-2010 |
20100279805 | POWER TRANSMISSION CHAIN AND POWER TRANSMISSION SYSTEM - There are provided a power transmission chain which can improve not only noise level but also durability by eliminating unfavorable combinations from a random arrangement of combinations of pitch lengths and pin shapes by paying attention to maximum bending angle and bending angle minimum value and a power transmission system using the same power transmission chain. | 11-04-2010 |
20110003658 | POWER TRANSMISSION CHAIN AND POWER TRANSMISSION SYSTEM INCLUDING SAME - With a view to suppressing fretting in a power transmission chain, when a chain straight-line area is seen from a chain widthwise direction W, a flat portion | 01-06-2011 |
20110039643 | POWER TRANSMISSION CHAIN AND POWER TRANSMISSION APPARATUS INCLUDING SAME - In a power transmission chain, an increase in rigidity in connection between pins and pulleys, a reduction in looseness of the pins when the pins bite into the pulleys, a reduction in driving noise and a further increase in practical durability are attained. | 02-17-2011 |