Bar Connecting Apparatus With Clip Advance
First Claim
1. An apparatus for connecting bars comprising:
- a clip string having a terminal clip, the clip string comprising a plurality of connected clips, wherein each clip has a seat for positioning one bar, a plurality of hooks for positioning a second bar wherein at least one of the hooks has an upper body, and at least one joining portion wherein the hooks are joined by the joining portion;
a barrel having a clip receiving cavity, the terminal clip being received in the clip receiving cavity; and
a hammer received in the barrel, the hammer reciprocating longitudinally within the barrel for contacting and expelling the terminal clip from the barrel;
a reciprocable member extending proximally from the barrel;
a cam guide connected to the reciprocable member;
a cam member having a cam track, the cam member pivotally connected to the barrel, wherein the cam guide engages the cam track such that the cam member pivots back and forth as the reciprocable member is moved distally and proximally relative to the barrel; and
at least one finger connected to the cam member such that the finger engages and advances the clip string into the clip receiving cavity as the cam member pivots.
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Accused Products
Abstract
An apparatus for connecting bars includes a clip string, a barrel having a clip receiving cavity, with a terminal clip of the clip string received in the clip receiving cavity. A drive is received in the barrel and extends proximally from the barrel. The drive includes a hammer received in the barrel. The hammer reciprocates longitudinally within the barrel for contacting and expelling the terminal clip from the barrel. A cam guide is connected to the drive. A cam plate having a cam track is pivotally connected to the barrel. The cam guide engages the cam track such that the cam plate pivots back and forth as the drive is moved distally and proximally relative to the barrel. At least one finger is connected to the cam plate such that the finger engages and advances the clip string end of the clip receiving cavity as the cam plate pivots back.
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Citations
20 Claims
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1. An apparatus for connecting bars comprising:
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a clip string having a terminal clip, the clip string comprising a plurality of connected clips, wherein each clip has a seat for positioning one bar, a plurality of hooks for positioning a second bar wherein at least one of the hooks has an upper body, and at least one joining portion wherein the hooks are joined by the joining portion; a barrel having a clip receiving cavity, the terminal clip being received in the clip receiving cavity; and a hammer received in the barrel, the hammer reciprocating longitudinally within the barrel for contacting and expelling the terminal clip from the barrel; a reciprocable member extending proximally from the barrel; a cam guide connected to the reciprocable member; a cam member having a cam track, the cam member pivotally connected to the barrel, wherein the cam guide engages the cam track such that the cam member pivots back and forth as the reciprocable member is moved distally and proximally relative to the barrel; and at least one finger connected to the cam member such that the finger engages and advances the clip string into the clip receiving cavity as the cam member pivots. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11)
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12. A method of applying clips to reinforcing bars to connect the reinforcing bars, the method comprising:
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(a) placing a distal end of a clip applying apparatus against at least one of the bars; (b) manually forcing the apparatus against the bar so that a proximally extending member moves distally relative to a barrel of the apparatus; (c) during step (b), moving a clip advance member laterally away from the barrel; (d) driving a clip from the barrel and onto the reinforcing bars with a hammer; (e) manually releasing the downward force on the apparatus and moving the proximally extending member proximally relative to the barrel; and (f) during step (e), moving the clip advance member laterally toward the barrel and moving another clip laterally into the barrel. - View Dependent Claims (13, 14, 15, 16, 17, 18, 19, 20)
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Specification