Tie and tie method for binding together adjacent support elements

• US 7,143,563 B1
• Filed: 05/20/2003
• Issued: 12/05/2006
• Est. Priority Date: 05/20/2003
• Status: Expired due to Fees

• Current Assignee: Douglas A. Palmer
• Original Assignee: Douglas A. Palmer
• Inventors: Palmer, Douglas A.
• Primary Examiner(s): Friedman, Carl D.
• Assistant Examiner(s): Nguyen, Chi Q.
• Application Number:
  US10/442,712
• Time in Patent Office: 1,295 Days
• Field of Search: 526/77, 526/84, 526/85, 526/86, 526/87, 526/491, 527/19, 527/362, 527/245, 527/12, 243/39, 403/400, 403/397, 403/396, 403/207
• US Class Current: 52/677
• CPC Class Codes: E04C 5/168 Spacers connecting parts for reinforcements and spacing the reinforcements from the form
• CPC Class Codes: E04C 5/18 Spacers of metal or substantially of metal E04C5/168 takes precedence

Abstract

A tie and a tie method for binding together adjacent support elements such as concrete reinforcing bars by employing a tie having a frame which can be disposed about the bars, and a wedge adapted to be forcibly driven between resilient portions of the frame and the bars to develop a biasing face which compresses the bars together.

Claims

1. A tie for binding together adjacent concrete reinforcing bars, the tie comprising:

a frame including a base and elongated resilient sides extending from the base and terminating in arcuate claws defining grooves;

the base and sides together defining a generally U-shaped channel extending in a first axial direction, and the grooves in the arcuate claws extending parallel to the first axial direction; and

an elongated wedge having lateral extremities adapted for forcible location within the grooves of the arcuate claws;

the base and sides together comprising means for engaging with a concrete reinforcing first bar and a concrete reinforcing second bar stacked on top of the first bar, and the wedge comprising means for engagement with an arcuate upper surface portion of the second bar whereby compressive forces are developed on the first and second bars to force them against one another between the base and the wedge;

wherein the elongated sides are each configured to define first and second pairs of legs, respectively, each of the legs of the first pair being spaced apart to define a first opening, and each of the legs of the second pair being spaced apart to define a second opening axially aligned with the first opening to define a through passage extending in a second axial direction transverse to the first axial direction for selectively receiving the first bar with the second bar overlying the first bar and extending in the channel in the first axial direction and transverse to the first bar, whereby the first bar can selectively be positioned in the base to extend in the first axial direction in the channel and parallel to the second bar, or in the through passage in a direction transverse to the second bar, the extremities of the first and second pairs of legs including the arcuate claws for engaging the wedge against the second bar to bind together the first and second bars regardless of the direction of the first bar relative the second bar.

2. A tie for binding together adjacent concrete reinforcing bars, the tie comprising:

a frame including a base and elongated resilient sides extending from the base and terminating in arcuate claws defining grooves;

the base and sides together defining a generally U-shaped channel extending in a first axial direction, and the grooves in the arcuate claws extending parallel to the first axial direction; and

an elongated wedge having lateral extremities adapted for forcible location within the grooves of the arcuate claws;

the base and sides together comprising means for engaging with a concrete reinforcing first bar and a concrete reinforcing second bar stacked on top of the first bar, and the wedge comprising means for engagement with an arcuate upper surface portion of the second bar whereby compressive forces are developed on the first and second bars to force them against one another between the base and the wedge;

wherein the elongated sides are configured to define first and second pairs of legs, respectively, terminating in the arcuate claws that are adapted to develop compressive forces upon the first and second bars for binding them together.

3. The tie according to claim 2, wherein:

the lateral extremities of the elongated wedge are configured to define opposite grooves extending parallel to the first axial direction for receiving the arcuate claws of the sides, respectively, and wherein the grooves of the arcuate claws open downwardly, and the grooves of the wedge open upwardly.

4. The tie according to claim 2, wherein:

the lateral extremities of the elongated wedge are configured to define opposite grooves extending parallel to the first axial direction for receiving the arcuate claws of the sides, respectively, and wherein the grooves of the arcuate claws open upwardly, and the grooves of the wedge open downwardly.

9. A pair of ties, each according to claim 2, with an elongated standoff directly fixed at its opposite ends to the bases of the frames of the ties.

10. The tie according to claim 2, further comprising an elongated support having an integral stand, one end of the support being fixed to the base of the tie for locating the stand upon a supporting surface.

14. The tie according to claim 2, wherein the frame is adapted to support the first and second bars either in a first relative orientation with the first bar extending parallel to the second bar or in a second relative orientation with the first bar extending transverse to the second bar, the elongated wedge comprising means for overlying engagement with the second bar to develop compressive forces upon the bars to bind them together in either the first or second relative orientation of the bars.

5. A tie for binding together adjacent concrete reinforcing bars, the tie comprising:

a frame including a base for engagement with an underlying concrete reinforcing first bar, and further including elongated sides extending from the base and terminating in arcuate claws, the claws defining grooves, and the base and sides together defining a first through passage extending along a first axis;

an elongated wedge for engagement with a concrete reinforcing second bar overlying the first bar, the wedge including lateral extremities adapted for forcible location within the arcuate claws of the sides to develop compressive forces on the first and second bars for binding them together;

the frame having a first axis for holding a first bar and a second axis for holding a second bar, the first and second axes extending parallel to one another;

the elongated sides being configured to define first and second pairs of legs, respectively, the extremities of the first and second pairs of legs including the arcuate claws to develop compressive forces upon the first and second bars for binding them together;

the lateral extremities of the wedge have edges which slope towards the first axis in an axially extending tightening direction whereby, upon forcible movement of the wedge in the tightening direction for engagement of the lateral extremities within the arcuate claws, the arcuate claws impose progressively greater compressive forces upon the wedge and progressively increase the forces binding together the first and second bars.

6. The tie according to claim 5, wherein the slope of the edges of each of the lateral extremities is collectively defined by successive sloping ramps arranged in saw tooth fashion, whereby the reverse movement of the wedge away from the tightening direction is prevented whenever the claws move off the slope of one ramp and onto the slope of the next ramp.

7. A tie for binding together adjacent concrete reinforcing bars, the tie comprising:

a frame including a base and elongated resilient sides extending from the base and terminating in arcuate claws defining grooves;

the base and sides together defining a generally U-shaped channel extending in a first axial direction, and the grooves in the arcuate claws extending parallel to said first axial direction; and

an elongated wedge having lateral extremities adapted for forcible location within the grooves of the arcuate claws;

the base and sides together comprising means for engaging with a concrete reinforcing first bar and a concrete reinforcing second bar stacked on top of the first bar, and the wedge comprising means for engagement with an arcuate upper surface portion of the second bar whereby compressive forces are developed on the first and second bars to force them against one another between the base and the wedge;

wherein the wedge includes first and second ends, and wherein the elongated sides are configured to define opposed first and second pairs of legs adjacent the first and second ends of the wedge, respectively, the extremities of the legs including the arcuate claws, the first pair of legs being longer than the second pair of legs to provide greater clearance for entry of the first end of the wedge under the claws of the first pair of legs upon axial slidable movement of the wedge toward the second pair of legs for location under the claws of the second pair of legs.

8. The tie according to claim 7, wherein the first end of the wedge includes a tongue to facilitate forcibly striking the wedge to force the wedge beneath the claws.

11. A method for binding together a pair of adjacent concrete reinforcing bars, comprising the steps of:

placing a first bar in a selected one of a first and a second through passageway in a resilient frame having opposite sides extending from the base, the through passageways being perpendicular to one another and the sides terminating in arcuate claws defining grooves extending parallel to the first through passageway;

placing a second bar in the frame above the first bar and extending in a direction parallel to the first through passageway and grooves, whereby the bars extend parallel to one another if the first bar is positioned in the first through passageway and extend transverse to one another if the first bar is positioned in the second through passageway;

locating a wedge in an initial position wherein the wedge is pivotally engaged with one side of the frame and overlies the second bar; and

forcibly driving the wedge from the initial position to an operative position in which the wedge is between the frame and the second bar so that the first and second bars are clamped against one another directly between the wedge and an opposing portion of the frame.

12. The method according to claim 11, wherein the step of locating the wedge in the initial position comprises engaging a lateral extremity on a first side of the wedge in one of the grooves in a first side of the frame, and wherein the step of forcibly driving the wedge to the second position comprises applying a blow to the wedge to drive a lateral extremity on a second side of the wedge into the groove on a second side of the frame opposite the first side of the frame, thereby outwardly biasing the second side of the frame, followed by resilient biasing of the frame inwardly for forcible engagement with the wedge.

13. A method for binding together a pair of adjacent concrete reinforcing bars, comprising the steps of:

providing a resilient frame having opposite sides;

fitting the opposite sides of the frame about a lower first bar and a higher second bar to maintain the first bar and the second bar in adjacent relation;

providing a wedge having an initial position wherein the wedge in the initial position is spaced from the frame in a first direction parallel to the second bar and in overlying relation to the second bar, and an operative position wherein the wedge is between the second bar and both sides of the frame; and

forcibly driving the wedge in a second direction opposite to the first direction over the second bar from the initial position to the operative position so that the first and second bars are clamped against one another directly between the wedge and an opposing portion of the frame.

15. A concrete reinforcing bar assembly, comprising:

first and second concrete reinforcing bars, the bars being positioned relative to one another in one of two possible orientations in which the second bar overlies the first bar, the orientations comprising a first orientation in which the second bar is parallel to the first bar and a second orientation in which the second bar is perpendicular to the first bar;

a tie for securing the reinforcing bars together in each of the possible orientations, the tie comprising a frame having a frame base and elongated sides extending from the frame base to form a generally U-shaped channel with the frame base for fitting around the reinforcing bars, and an elongated wedge engaging the frame to secure the reinforcing bars in the frame;

the channel extending in a first axial direction, wherein the channel further comprises a channel base, and wherein the channel base supports the first bar extending in the first axial direction when the bars are in the first orientation, the sides of the frame terminating in arcuate claws;

the sides of the base having aligned openings defining a through passage extending in a second axial direction transverse to the first axial direction for supporting the first bar extending in the second axial direction when the bars are in the second orientation, whereby the channel base and the through passage define a first support position and an alternative second support position, respectively, for the first support bar; and

the wedge having lateral extremities forcibly located within the arcuate claws of the sides and a surface engaging an opposing surface portion of the second support bar and applying compressive forces upon the first and second reinforcing bars to bind them together in both the first and second orientations.

16. A tie for binding together adjacent concrete reinforcing bars, the tie comprising:

a frame including a base and elongated resilient sides extending from the base and terminating in arcuate claws defining grooves;

the base and sides together defining a generally U-shaped channel extending in a first axial direction, and the grooves in the arcuate claws extending parallel to said first axial direction; and

an elongated wedge having lateral extremities adapted for forcible location within the grooves of the arcuate claws;

the base and sides together comprising means for engaging with a concrete reinforcing first bar and a concrete reinforcing second bar stacked on top of the first bar, and the wedge comprising means for engagement with an arcuate upper surface portion of the second bar whereby compressive forces are developed on the first and second bars to force them against one another between the base and the wedge;

wherein each side has an elongate slot extending from its end towards the base, each slot being aligned with one another and having an arcuate lower end, the slots together defining a through passage for selectively receiving the first bar extending in a second axial direction transverse to the first axial direction, with the bar supported on the arcuate lower ends of the slots.