Length adjustable tool for aligning boring bar
First Claim
1. An elongated alignment tool for a boring bar or like device used to bore or rebore a hole into or through a structural member at a location spaced apart from a further hole or location on the structural member comprising:
- at least a first hollow tubular segment having outboard and inboard ends, said first tubular segment being non-rotatably anchored to a further hole or location on the structural member, a second hollow tubular segment having outboard and inboard ends, said inboard end being telescopically received within said first hollow tubular segment, a rigid externally threaded rod having first and second ends, said first end of said rod being fixedly anchored internally of said inboard end of said first tubular segment and extending in cantilevered fashion along substantially the full length of said first tubular segment, said second hollow tubular segment including a plug fixedly mounted internally thereof adjacent said inboard end thereof and including an internally threaded throughbore therethrough and threadably engaging said externally threaded rod whereby rotation of said second tubular segment relative to said first tubular segment effects telescopic movement of said second segment relative to said first tubular segment, a first elongated clamp post having outboard and inboard ends, said outboard end being adapted to be releasably and non-rotatably anchored to the boring bar, and said inboard end adapted to be selectively either fixedly anchored to said outboard end of said second segment to preclude rotation of said first clamp post relative to said second segment or loosely affixed to said outboard end to permit rotation of said first clamp post relative to said second segment, whereby rotation of said second segment relative to said first segment effects lengthening or shorting of the overall length of the elongated alignment bar.
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Accused Products
Abstract
An alignment tool for adjustably positioning a boring bar relative to a spaced apart fixed location on a structural member including an elongated bar formed of a plurality of axially aligned and separable tubular members and having its opposite ends mounted to the boring bar and the fixed location, respectively. The length of the bar, hence the distance between the boring bar and the fixed location is adjustably selectable by means of telescopically mounted one of the tubular members. A first one of the tubular members receives therein a second one of the tubular members employing a thread interconnection whereby rotational movement of one tubular member relative to the other provides selection of the overall length of the tool. Multiple indicia associated with the outer circumference of each of the threadably interconnected tubular members provide a visual indication of the extent of the insertion of said second tubular member within said first tubular member, hence the overall length of the tool.
29 Citations
17 Claims
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1. An elongated alignment tool for a boring bar or like device used to bore or rebore a hole into or through a structural member at a location spaced apart from a further hole or location on the structural member comprising:
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at least a first hollow tubular segment having outboard and inboard ends, said first tubular segment being non-rotatably anchored to a further hole or location on the structural member, a second hollow tubular segment having outboard and inboard ends, said inboard end being telescopically received within said first hollow tubular segment, a rigid externally threaded rod having first and second ends, said first end of said rod being fixedly anchored internally of said inboard end of said first tubular segment and extending in cantilevered fashion along substantially the full length of said first tubular segment, said second hollow tubular segment including a plug fixedly mounted internally thereof adjacent said inboard end thereof and including an internally threaded throughbore therethrough and threadably engaging said externally threaded rod whereby rotation of said second tubular segment relative to said first tubular segment effects telescopic movement of said second segment relative to said first tubular segment, a first elongated clamp post having outboard and inboard ends, said outboard end being adapted to be releasably and non-rotatably anchored to the boring bar, and said inboard end adapted to be selectively either fixedly anchored to said outboard end of said second segment to preclude rotation of said first clamp post relative to said second segment or loosely affixed to said outboard end to permit rotation of said first clamp post relative to said second segment, whereby rotation of said second segment relative to said first segment effects lengthening or shorting of the overall length of the elongated alignment bar. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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9. An alignment tool for adjustably positioning a boring bar relative to a spaced apart fixed location comprising
an elongated bar of adjustable length and having first and second ends, means for releasably affixing said first end of said bar to the boring bar, means for releasably affixing said second end of said bar to the fixed location, length adjustment means disposed along the length of said bar and between said first and second ends thereof, said length adjustment means including a first elongated hollow tubular member having first and second opposite ends and a longitudinal axis, a second elongated tubular member having a longitudinal axis telescopically disposed at least partially within said first tubular member, means securing said first tubular member against rotation thereof about its longitudinal axis, means securing said second tubular member for selective rotation about its longitudinal axis relative to said first tubular member whereby more or less of the length of said second tubular member is disposed within said first hollow tubular member as a function of the direction of rotation of said second tubular member about its longitudinal axis relative to said first hollow tubular member, multiple indicia associated with the outer circumference of each of said first and second tubular members and providing a visual indication of the extent of the insertion of said second tubular member within said first tubular member.
Specification