| 摘要 |
PROBLEM TO BE SOLVED: To enable a test to be continued for a long period of time without fracture of a flat spring even if a flat spring is employed instead of an existing link device when lead wire from a sensor embedded in a piston is led out to the outside of a crankcase. SOLUTION: The flat spring 12 having a one end side connected to a large end part 5b of a connecting rod 5 supporting a piston 3, projecting out of the crankcase 13 through a cutout part 14, bending downward in another end side and connecting to a lower end part of the crankcase 13 is provided. A bearing 15 of a rotary shaft O in parallel with a crankshaft 6 is installed in a connection section of another end of the flat spring 12 and a lower end part of the crankcase 13. The flat spring 12 is constructed in such a manner that the another end of the same can displace around the rotary shaft O of the bearing 15. The lead wire 10 led to the large end part 5b of the connecting rod 5 from the piston 3 is laid along the flat spring 12 and is led out of the crankcase 13. COPYRIGHT: (C)2007,JPO&INPIT
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