JPH0266963U - - Google Patents

Description

[Brief explanation of drawings]

Fig. 1 is an exploded perspective view of the present invention, Fig. 2 is a vertical side view thereof, Fig. 3 is a longitudinal side view with the handle rotated 180 degrees from the position shown in Fig. 2, and Fig. 4 is a longitudinal side view of the present invention.
The figure is a partially cross-sectional plan view.

Claims (1)

[Claims for Utility Model Registration] Its main structure is that one ring-shaped driving head has one through hole in the middle and is used to drive a one-sided driving ratchet set, and one side of the through hole is slightly It has a closing opening that can be retracted inward to prevent the ratchet from coming off, and has a recessed ring groove on the other side to prevent the ratchet from coming off when placed in the inner retaining ring, and extends the neck on the other side. It has a lateral through hole for locating the drive handle, and has one inner ring hole near the outside of the lateral hole of the extension stage for locating the spring limit inner retaining ring. The one-way drive ratchet set includes one set of forward ratchets with relatively large square holes and another set of opposite ratchets with relatively small square holes to form one ratchet set that works in both directions. Through holes of unequal size are connected to the square handle of the ratchet square hole to drive the box set, and this ratchet is also made in one piece, and the one ratchet is also a double set with a polygon hole inside. It can be crimped together (or welded or otherwise connected) with a set of oppositely oriented ratchets, the polygonal hole and the nut being of equal size, directly driving the nut, and this ratchet also being integrally connected. The driving handle has a notch on one side of the end, and a power transmission hook key hole is provided on the top, which is used for installing a power transmission hook. The power transmission hook is attached to the notch, and the teeth with a slightly inclined side at one end are attached to the ratchet, or the other end has one through hole, and the power transmission hook on the notch is attached by a key. The other return spring is positioned in the hook key hole and presses against the power transmission hook wedge so that the power transmission hook is in a position where it is always pulled in a retracting direction when spinning in the opposite direction. , this pressing is also fitted into the power transmission hook positioning key, and has two concave grooves forming an angle of 180° to each other at the end of the knob shape, and is used for installation in the drive head;
One through hole is provided on the side surface of the neck step, and the steel ball and pressing spring that are connected to one are placed in the above-mentioned double concave grooves, and the handle is further provided with a closing opening to prevent the spring and steel ball from coming off. passes through the forward operating stage of this double-concave groove and presents one drop, which is used for placing one spring, and the extension stage horizontal hole of the ring-shaped drive head approaches the inner retaining ring toward the outside. This spring also includes a retaining ring to prevent it from coming off against the stage rod, and the box rotating handle has one side selection drive structure.