• 3 PC Set which includes 8", 12" and 17" Index Pry Bars
• 17" Index Pry Bar with extra Double Joint features which creates another 11 Index Positions and provides total 121 different angles selection
• Patented Innovative Unique Double Gear Design with 2 sides Push Locking mechanism design which distributes forces evenly on the Joint
• Adjustable head with incremental angles of 18 degree which allows User to choose up to 11 different angles for prying in different comfined space
• Gear torque exceed US ANSI requirement (ASME B107.60-2004 Rolling Head) 3~6 times
• Precised and sharp blade edge of rolling head tip which allows User to easily break apart the tight components
• Industrial Magnese Phosphate finishing to help protect against corrosion for over minimum 48 hours Salt Spray Test that complies with international requirement of ISO 9227-2012

DESCRIPTION SUMMARY OF THE INVENTION

The primary objective of the present invention is to provide a rotation control device for a tool which can avoid the stuck fault and improve convenience in use.

Another objective of the present invention is to provide a rotation control device for a tool, which is capable of reducing cost and making assembly easier.

In order to achieve the above objectives, a rotation control device for a tool in accordance with the present invention comprises: a handle, a tool head, two ratchet wheels, a spring, and two C-shaped snap rings.

The handle is formed with two assembling portions, and each of the two assembling portions is defined with a first through hole, a first ratchet portion on an inner periphery of the first through hole, and an annular groove in the inner periphery of the first through hole.

The tool head is provided with a working portion and a pivot portion pivotably disposed between the two assembling portions. In the pivot portion is defined a second through hole to be in communication with the first through hole, and on an inner periphery of the second through hole is provided a second ratchet portion.

The two ratchet wheels are disposed between the two assembling portions of the handle and the pivot portion of the tool head in such a manner that the two ratchet wheels are selectively adjusted between a close position where the two ratchet wheels are abutted against each other and a separated position where the two ratchet wheels are separated and located away from each other. Each of the ratchet wheels is provided with a ratchet portion on an outer periphery thereof, a receiving groove in an inner surface thereof, and a protrusive press portion on an outer surface thereof. The ratchet portions of the two ratchet wheels are selectively engaged with the second ratchet portion of the tool head or simultaneously engaged with the first and second ratchet portions. The press portion of each of the ratchet wheels is smaller in outer diameter than the ratchet portion of the respective ratchet wheels. When in the close position, the ratchet portions are engaged with the second ratchet portion of the tool head, so that the handle and the tool head are able to pivot with respect to each other, and when in the separated position, the ratchet portions of the ratchet wheels are engaged with the first and second ratchet portions simultaneously, so that the handle and the tool head are fixed in a non-rotatable manner to each other.

The spring is disposed between the two ratchet wheels and has its two ends pressed against receiving grooves of the two ratchet wheels to maintain the two ratchet wheels in the separated position in normal conditions.

The two C-shaped snap rings are disposed in the respective annular grooves of the assembling portions of the handle. Each of the two C-shaped snap rings is provided with an abutting surface for abutting against a lateral surface of the ratchet portions of the respective ratchet wheels, and a through hole for insertion of the press portions of the ratchet wheels.

By such arrangements, the two ratchet wheels can be pressed to compress the spring oppositely in such a manner that the two ratchet wheels can be fully engaged with the second ratchet portion of the tool head, so that the tool head can be rotated to a desired angle. The two ratchet wheels are symmetrically arranged, so that the two ratchet wheels can be subjected to the same force and move the same distance, thus avoiding the stuck fault while improving convenience in use.