ADJUSTABLE ROD HOLDER FOR CONCRETE CONSTRUCTION
A rod holder for being embedded in concrete includes a body including a first opening for holding an end portion of a threaded rod, the first opening including an upper portion and a lower portion, the upper portion including threads for threaded connection with the threaded rod; and the body including a vertical slot in a sidewall of the lower portion of the first opening, the slot for making visible an end portion of the threaded rod to ensure minimum threaded connection of the threaded rod in the upper portion while the threaded rod is adjusted vertically.
This is a nonprovisional application of Provisional Application Ser. No. 63/341,713, filed May 13, 2022, which is hereby incorporated by reference.
FIELD OF THE INVENTIONThe present invention is generally directed to rod holders for concrete construction and particularly to holders for anchor rods and concrete anchors and screed chairs.
SUMMARY OF THE INVENTIONThe present invention provides a rod holder for being embedded in concrete, comprising a body including a first opening for holding an end portion of a threaded rod, the first opening including an upper portion and a lower portion, the upper portion including threads for threaded connection with the threaded rod; and the body including a vertical slot in a sidewall of the lower portion of the first opening, the slot for making visible an end portion of the threaded rod to ensure minimum threaded connection of the threaded rod in the upper portion while the threaded rod is adjusted vertically.
The present invention also provides a rod holder for being embedded in concrete, comprising a body including a first opening with a first diameter and a second opening with a second diameter for holding an end portion of a first threaded rod with the first diameter in the first opening or a second threaded rod with the second diameter in the second opening; and the first diameter being smaller than the second diameter.
The present invention further provides a rod holder for being embedded in concrete, comprising a plastic body including leg portions to elevate the body above a formboard, and a center post with a first opening, the center post extending to the formboard; a first nut and a second nut disposed in the first opening, the first nut being above the second nut; the first opening including a bottom wall with a second opening for receiving a screw for attaching the holder to the formboard, the bottom wall being breakable from the center post with the screw when the formboard is removed; and the first nut for holding an end portion of a first threaded rod, the second nut for holding an end portion of a second threaded nut inserted into the first opening from below when the formboard is removed.
Referring to
The holder 2 includes leg portions 8 to advantageously elevate the openings 4 above a concrete formboard. The leg portions include screw holes 10 and nail holes 12. It should be understood that the openings 10 may also be used for nails and the opening 12 for screws.
Referring to
The central opening 6 further includes a bottom wall 20 with a smaller opening 22 for receiving a screw for attaching the holder to the formboard. The bottom wall 20 is advantageously breakable or tearable from the wall of the opening 6 to allow the screw to separate from the holder when the formboard is removed after the concrete has cured, allowing the screw to stay attached to the formboard, thus avoiding the extra work of cutting off the screw from the concrete structure.
The screw holes 10 similarly include a bottom wall 24 and a smaller opening 26. The bottom wall 24 is advantageously breakable or tearable to allow the screw to separate from the walls of the holes 10 when the formboard is removed after the concrete has cured, allowing the screws to stay attached to the formboard, thus avoiding the extra work of cutting off the screws from the concrete structure.
Each nail hole 12 includes a smaller diameter portion between the top and bottom of the holes for friction holding the nails prior to driving the nails to the formboard so that the holder 2 can be pre-supplied with nails held in the nail holes 12.
Referring to
The bottoms of the leg portions 8 and the center post 30 are preferably on the same level for a stable and flat attachment to the formboard.
Referring to
Referring to
Referring to
Referring to
Referring to
Referring to
Referring to
Referring to
Referring to
Referring to
Referring to
Referring to
Referring to
Referring to
Referring to
Referring to
Referring to
Referring to
Referring to
Referring to
Referring to
Referring to
Referring to
Referring to
Referring to
Referring to
Referring to
Referring to
Referring to
Referring to
Referring to
Referring to
Referring to
Referring to
The breakaway feature of central opening 6 works the same way with the opening 10 in the leg portions 8. For example, referring to
The breakaway feature described above works the same way for all the other embodiments of the holder for attaching the holder to the formboard.
Referring to
Although the embodiments shown includes one or three rod openings 4, it should be understood that two or more than three openings may be used.
It should be understood that the various features shown in a particular combination in an embodiment of the rod holder are equally applicable and may be interchanged with the other features shown in another configuration of the rod holder to arrive at different configurations even though not specifically disclosed in combination with the other embodiments.
While this invention has been described as having preferred design, it is understood that it is capable of further modifications, uses and/or adaptations following in general the principle of the invention and including such departures from the present disclosure as come within known or customary practice in the art to which the invention pertains, and as may be applied to the essential features set forth, and fall within the scope of the invention or the limits of the appended claims.
Claims
1. A rod holder for being embedded in concrete, comprising:
- a) a body including a first opening for holding an end portion of a threaded rod, the first opening including an upper portion and a lower portion, the upper portion including threads for threaded connection with the threaded rod; and
- b) the body including a vertical slot in a sidewall of the lower portion of the first opening, the slot for making visible an end portion of the threaded rod to ensure minimum threaded connection of the threaded rod in the upper portion while the threaded rod is adjusted vertically.
2. The rod holder as in claim 1, wherein the first opening is offset from a vertical central axis of the body.
3. The rod holder as in claim 1, wherein the body includes leg portions to elevate the body above a formboard.
4. The rod holder as in claim 1, wherein the threads are segmented.
5. The rod holder as in claim 1, wherein shoulder portion extends into the first opening to provide a stop for a bottom of the threaded rod.
6. The rod holder as in claim 3, wherein the body includes a center post with a second opening, the center post extends to the formboard.
7. The rod holder as in claim 6, wherein:
- a) the second opening includes a bottom wall with a third opening for receiving a screw for attaching the holder to the formboard; and
- b) the bottom wall is breakable from the center post with the screw when the formboard is removed.
8. The rod holder as in claim 3, wherein:
- a) the leg portions each includes a second opening with a bottom wall with a third opening for attaching the holder to the formboard with a screw; and
- b) the bottom wall is breakable from the center post with the screw when the formboard is removed.
9. The rod holder as in claim 1, wherein:
- a) the slot includes a top end below the upper portion of the first opening; and
- b) vertical ribs are disposed inside the lower portion of the first opening to engage the threaded rod.
10. The rod holder as in claim 1, wherein 1, wherein:
- a) the body includes a top wall; and
- b) the first opening includes a sidewall extending upwardly from the top wall.
11. The rod holder as in claim 10, wherein the slot extends above the top wall.
12. The rod holder as in claim 1, wherein:
- a) the body includes a second opening for holding an end portion of another threaded rod; and
- b) the second opening includes a diameter different from the first opening.
13. The rod holder as in claim 1, wherein the body includes openings for nails for attaching the body to the formboard.
14. The holder as in claim 3, wherein the leg portions include openings for screws for attaching the body to the formboard.
15. The holder as in claim 1, wherein the upper portion of the first opening includes nut molded into the body.
16. A rod holder for being embedded in concrete, comprising:
- a) a body including a first opening with a first diameter and a second opening with a second diameter for holding an end portion of a first threaded rod with the first diameter in the first opening or a second threaded rod with the second diameter in the second opening; and
- b) the first diameter being smaller than the second diameter.
17. The rod holder as in claim 16, wherein:
- a) the first opening includes a first upper portion and a first lower portion, the first lower portion includes a vertical first slot in a sidewall of the first lower portion to make visible an end portion of the first threaded rod to ensure minimum threaded connection of the threaded rod in the first upper portion while the first threaded rod is adjusted vertically;
- b) the second opening includes a second upper portion and a second lower portion, the second lower portion includes a vertical second slot in a sidewall of the second lower portion to make visible an end portion of the second threaded rod to ensure minimum threaded connection of the second threaded rod in the second upper portion while the second threaded rod is adjusted vertically.
18. The rod holder as in claim 16, wherein the body includes leg portions to elevate the body above a formboard.
19. The rod holder as in claim 16, wherein the first upper opening the second upper portion are threaded.
20. The rod holder as in claim 16, wherein a first nut and a second nut are molded in the first upper portion and the second upper portion, respectively.
21. The rod holder as in claim 17, wherein the first lower portion and the second lower portion include respective vertical ribs to engage the respective first threaded rod and the second threaded rod.
22. The rod holder as in claim 16, wherein the body includes a center post with a third opening, the center post extends to the formboard.
23. The rod holder as in claim 22, wherein:
- a) the third opening includes a bottom wall with a fourth opening for receiving a screw for attaching the holder to the formboard; and
- b) the bottom wall is breakable from the center post with the screw when the formboard is removed.
24. The rod holder as in claim 18, wherein:
- a) the leg portions each includes a third opening with a bottom wall with a fourth opening for attaching the holder to the formboard with a screw; and
- b) the bottom wall is breakable from the center post with the screw when the formboard is removed.
25. A rod holder for being embedded in concrete, comprising:
- a) a plastic body including leg portions to elevate the body above a formboard, and a center post with a first opening, the center post extending to the formboard;
- b) a first nut and a second nut disposed in the first opening, the first nut being above the second nut;
- c) the first opening including a bottom wall with a second opening for receiving a screw for attaching the holder to the formboard, the bottom wall being breakable from the center post with the screw when the formboard is removed; and
- d) the first nut for holding an end portion of a first threaded rod, the second nut for holding an end portion of a second threaded nut inserted into the first opening from below when the formboard is removed.
26. The rod holder as in claim 25, wherein a third nut is disposed in the first opening between the first nut and the second nut.
27. The rod holder as in claim 25, wherein the first nut has a larger diameter than the second nut.
Type: Application
Filed: May 12, 2023
Publication Date: Nov 16, 2023
Inventor: Thomas M. ESPINOSA (Snohomish, WA)
Application Number: 18/196,477