GLUELESS JOINING DEVICES FOR INTERLOCKING WITH HOLLOW SHAFTS
First Claim
1. A glueless interlocking mechanism for shafts having a hollow inside diameter, the mechanism comprising:
- a base portion, the base portion defining a first outside diameter, the base portion including a first tapered ramp portion adjacent a first end and a hollow channel therethrough from end to end;
a wedge portion, the wedge portion having an outside diameter no greater than the first outside diameter, the wedge portion including a second tapered ramp portion adjacent a first end and a hollow threaded recess defined inwards of the ramp portion; and
an adjustment screw insertable through the hollow portion of the base portion and threadable into the threaded portion of the wedge portion;
wherein turning the adjustment screw in a retraction direction causes base portion and wedge portions to move towards one another so that the second tapered ramp portion of the wedge portion slides along the first tapered ramp portion of the base portion to define an interlocking diameter that is greater than the first diameter.
2 Assignments
0 Petitions
Accused Products
Abstract
A glueless shaft joining system, apparatus and method are disclosed. An expandable insert, half-out insert or outsert is disposable at least partially into the inside of the shaft of an arrow or other tubular member such as a golf club shaft. A set screw can be tightened to expand finger elements to lock the insert and arrowhead attached thereto in place. Alternatively, a screw can lengthwise contract base and wedge elements along contacting portions of respective ramp portions, thereby expanding the effective outside diameter of the device inside of the shaft to lock it into place. In either case, a component, such as a broad head, can be aligned, removed or indexed as desired.
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Citations
20 Claims
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1. A glueless interlocking mechanism for shafts having a hollow inside diameter, the mechanism comprising:
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a base portion, the base portion defining a first outside diameter, the base portion including a first tapered ramp portion adjacent a first end and a hollow channel therethrough from end to end; a wedge portion, the wedge portion having an outside diameter no greater than the first outside diameter, the wedge portion including a second tapered ramp portion adjacent a first end and a hollow threaded recess defined inwards of the ramp portion; and an adjustment screw insertable through the hollow portion of the base portion and threadable into the threaded portion of the wedge portion; wherein turning the adjustment screw in a retraction direction causes base portion and wedge portions to move towards one another so that the second tapered ramp portion of the wedge portion slides along the first tapered ramp portion of the base portion to define an interlocking diameter that is greater than the first diameter. - View Dependent Claims (2, 3, 4, 5, 6, 7)
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8. A method of removably interlocking an arrow component to an arrow shaft, the method comprising:
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inserting an adjustment screw through a base via a first end thereof so that the adjustment screw extends beyond a second end thereof; inserting the adjustment screw into a first end of a wedge; turning the adjustment screw to move the wedge towards the base, thereby sliding a portion of a tapered ramp portion of the wedge along a respective tapered ramp portion of the base, which causes the wedge and base portions to laterally separate with respect to one another. - View Dependent Claims (9, 10, 11, 12, 13)
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14. A glueless shaft interlocking mechanism for shafts having a hollow interior, comprising:
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a base insertable into the hollow interior of the shaft, the base including a threaded first end, a second end, and a plurality of flexible fingers separated by a slot defined between adjacent fingers and the slots extending inwards from the second end, the base having a hollow interior, the interior including a threaded portion; and a set screw insertable into the hollow interior of the base, the set screw comprising a threaded portion and a tapered portion, wherein the tapered portion of the set screw is configured to deflect the finger portions laterally outwardly as the set screw is advanced through at least a part of the threaded portion. - View Dependent Claims (15, 16, 17, 18, 19, 20)
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Specification