| 摘要 |
<p>PURPOSE:To provide a speed alarm device for operation recorder which can be used for operation recorders of various specifications and has the general usefulness. CONSTITUTION:An adjusting shaft 6 is formed on a base plate 1 by outsert molding so that it can be turned with a prescribed slip torque, and an adjusting plate 7 is fixed to the adjusting shaft 6. A sectorial part 6c is formed under the adjusting shaft 6, and the base plate 1 is provided with stoppers 21, 22, and 23 with which the sectorial part 6c is brought into contact to control the turning range of the adjusting shaft 6. Further, the position of the first stopper 21 is adjusted to plural stages so that the turning range of the adjusting shaft 6 can be changed in accordance with specifications of the operation recorder.</p> |
