| 摘要 |
A ratchet-type lever mechanism including two ratchet gear wheels and a bifurcated ratchet pawl member for selective meshed engagement with one of the two ratchet gear wheels. The bifurcated ratchet pawl member is simply bent from a plate material into such an offset configuration having a first toothed pawl portion and a second toothed pawl portion bent from that first one in an offset manner so that the two pawl portions are in correspondence with the respective two ratchet gear wheels. This ratchet-type lever mechanism has a simplified connection structure allowing both of the bifurcated ratchet member and an operating lever to be securely connected on an input shaft, whereby the input shaft is made short in length, thereby making thin a whole size of the lever mechanism. A restriction element for rotation of the bifurcated ratchet pawl member may also be mounted on that input shaft for that purpose.
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