| 摘要 |
PURPOSE: To enhance reliability independent of the position of the spindle with respect to gravity by constituting a support element of a body portion and a movable, resiliently biased engagement element and by forming a stop means on the support. CONSTITUTION: A support element 26 is constituted of a body portion, a movable, resiliently biased engagement element 37. A stop means 48 is formed on a support 1. The stop means 48 is positioned for engagement with the projectable engagement element 37 of the spindle support element 26. Take-up carrier means 49-51 are provided at the end portion of a spindle nut 5. A movable connecting dog means 44 is located on the support element 26. This enables high reliability independent of the position of the spindle with respect to gravity. |
