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US 9,108,255 B2Granted
Fast knockdown cutting tool assembly
AssigneeGison Machinery Co., Ltd.
InventorKuang-Tai Li
Life of this patent
Estimating the term…
Abstract
A cutting tool assembly includes a mandrel member and a cutting tool. The mandrel member has a shaft rod and a slide sleeve fitted around the shaft rod. At least one alignment pin is mounted in the shaft rod and at least one engagement pin is disposed in the slide sleeve. At least one locking member is disposed between the shaft rod and the slide sleeve. The cutting tool has a shank body and a tool bit. At least one alignment sink is disposed on the shank body. When assembled, the shank body is plugged into the shaft rod to align the alignment pin with the alignment sink so as to release the slide sleeve from the engagement of the engagement pin, permitting the slide sleeve to move to a locking position where the locking member is latched with the cutting tool.
Claims16
A fast knockdown cutting tool assembly comprising:
- a mandrel member including:
- a shaft rod having a sleeve section at a front end of the shaft rod;
- a shaft cavity axially inward extending from a front end of the sleeve section;
- at least one locking hole and at least one engagement hole being formed through the sleeve section between an inner circumference and an outer circumference of the sleeve section;
- a slide sleeve having a passage passing through the slide sleeve between two ends thereof;
- at least one pinhole being radially disposed on the slide sleeve, an inner end of the pinhole communicating with the passage;
- the slide sleeve being fitted on the sleeve section of the shaft rod and slideable along the sleeve section without rotation;
- the slide sleeve being rearward slideable to a releasing position and forward slideable to a locking position, when the slide sleeve is positioned in the releasing position, the pinhole being aligned with the engagement hole;
- an elastic member disposed between the shaft rod and the slide sleeve for providing an elastic force to keep pushing the slide sleeve forward;
- at least one alignment pin disposed in the engagement hole and slideable within the engagement hole;
- at least one engagement pin and at least one resilient member with a number equal to that of the pinhole, which are disposed in the pinhole, the engagement pin being slideable within the pinhole;
- the resilient member providing an elastic force to keep the engagement pin moving to an inner end of the pinhole;
- when the slide sleeve is positioned in the releasing position, the inner end of the engagement pin extending into the engagement hole to push the alignment pin and make an inner end of the alignment pin extend out of the engagement hole;
- and
- at least one locking member with a number equal to that of the locking hole, which is disposed in the locking hole and slideable within the locking hole;
- and
- a cutting tool having a shank body and a tool bit disposed at one end of the shank body;
- a latch section being disposed on the shank body;
- at least one alignment sink being disposed on a circumference of the shank body;
- when the shank body of the cutting tool is plugged into the shaft cavity of the sleeve section of the shaft rod, an inner end of the alignment pin contacting the alignment sink and the engagement pin being pushed by the alignment pin to make the inner end of the engagement pin moved out of the engagement hole, whereby the slide sleeve is moved to the locking position to make the locking member latched with the latch section of the cutting tool.
17 more elements
A fast knockdown cutting tool assembly comprising:
- a mandrel member including:
- a shaft rod having a sleeve section at a front end of the shaft rod;
- a shaft cavity axially inward extending from a front end of the sleeve section;
- at least one engagement hole being formed on the sleeve section;
- a slide sleeve, which is a hollow collar body;
- at least one pinhole being radially disposed on the slide sleeve;
- the slide sleeve being fitted on the sleeve section of the shaft rod and slideable along the sleeve section without rotation, the slide sleeve being rearward slideable to a releasing position and forward slideable to a locking position, when the slide sleeve is positioned in the releasing position, the pinhole being aligned with the engagement hole;
- an elastic member fitted around the slide sleeve, two ends of the elastic member respectively abutting against the slide sleeve and the shaft rod to provide an elastic force to keep pushing the slide sleeve forward;
- at least one alignment pin disposed in the engagement hole and slideable within the engagement hole;
- at least one engagement pin and at least one resilient member disposed in the at least one pinhole, the engagement pin being slideable within the pinhole;
- the resilient member providing an elastic force to keep the engagement pin moving to an inner end of the pinhole;
- when the slide sleeve is positioned in the releasing position, the inner end of the engagement pin extending into the engagement hole to push the alignment pin and make inner end of the alignment pin extend out of the engagement hole;
- and
- at least one locking member disposed between the sleeve section and the slide sleeve, the locking member being movable in a radial direction of the sleeve section;
- and
- a cutting tool having a shank body and a tool bit disposed at one end of the shank body;
- a latch section being disposed on the shank body;
- at least one alignment sink being disposed on a circumference of the shank body;
- when the shank body of the cutting tool is plugged into the shaft cavity of the sleeve section of the shaft rod, an inner end of the alignment pin contacting the alignment sink and the engagement pin being pushed by the alignment pin to make the inner end of the engagement pin moved out of the engagement hole, whereby the slide sleeve is moved to the locking position to make the locking member latched with the latch section of the cutting tool.
16 more elements
Dependencies are inferred from the claim text.