Rebar spacer assembly

• US 4,835,933 A
• Filed: 02/11/1988
• Issued: 06/06/1989
• Est. Priority Date: 02/11/1988
• Status: Expired due to Fees

• Current Assignee: Fernand P. Yung
• Original Assignee: Fernand P. Yung
• Inventors: Yung, Fernand P.
• Primary Examiner(s): Scherbel, David A.
• Assistant Examiner(s): CHILCOT, RICHARD E
• Application Number:
  US07/155,223
• Time in Patent Office: 481 Days
• Field of Search: 52/677-689, 52/719, 248/74.3, 248/74.4, 248/74.1, 248/505, 248/221.4
• US Class Current: 52/685
• CPC Class Codes: E04C 5/168 Spacers connecting parts for reinforcements and spacing the reinforcements from the form

Abstract

A spacer assembly including a spacer with a body having a base portion with a generally centrally disposed support post portion, one end which is formed as a planar surface with a centrally located generally concave saddle portion configured for receiving a reinforcing bar, the planar surface being provided with apertures therethrough on both sides of the saddle. A clamp member is provided for simultaneously securing mutually perpendicular rebars to the chair, the clamp member including a generally U-shaped lower portion, with the depending arms thereof in spaced generally parallel relation for engaging a first bar within the saddle. A pair of generally identical hook arms extending upwardly from the bight portion, the hook arms being oriented for engaging a second rebar in an orientation perpendicular to a first rebar engaged within the saddle portion. The saddle portion is configured with a centrally disposed opening therein, and an incremental spacer or extender member is provided, for mating coaction with the uppermost part of the support post. The extender member is one of a set of extender members wherein the spacer can be fabricated in whole sizes, such as two inch, three inch, etc., and the extender members can be fabricated in fractional sizes, such as one-quarter, one-half and three-quarter inch sizes.

Claims

1. In a spacer assembly for use in construction applications for supporting reinforcement bar members relative to a supporting surface for concrete construction, the combination comprising:

a spacer member configured for positioning relative to the supporting surface, said spacer member having saddle means for receiving a reinforcement bar member at least partially thereon;

a separate unitary clamp member having first and second leg portions;

coacting means on said clamp member and said spacer member for attaching said leg portions of said clamp member to said spacer member adjacent said saddle means, said clamp member including first means including said leg portions for fastening a first bar member at least partially within said saddle means, and second hook means for fastening a second bar member to said spacer member in intersecting relation to and atop said first bar member.

6. The spacer assembly according to claim 1 wherein said spacer member includes a support post portion with said saddle means formed in a surface of said post portion.

2. In a spacer assembly for use in construction applications for supporting reinforcement bar members relative to a supporting surface for concrete construction, the combination comprising:

a spacer member configured for positioning relative to the supporting surface, said spacer member having saddle means for receiving a reinforcement bar member at least partially thereon;

a unitary clamp member, said clamp member including a first generally U-shaped portion with a bight portion and first and second leg portions;

coacting means on said clamp member and said spacer member for attaching said clamp member to said spacer member adjacent said saddle means, said clamp member including fist means for fastening a first bar member at least partially within said saddle means, and second means for fastening a second bar member to said spacer member in intersecting relation to and atop said first bar member, and wherein said coacting means includes first and second slot means in said spacer member for receiving said leg portions.

3. The spacer assembly according to claim 2 wherein said first and second leg portions are generally parallel and spaced a distance greater than the cross-dimension of said first bar member, and wherein said first means of said clamp member includes the space between said leg portions and said bight portion.

4. The spacer assembly according to claim 3 wherein said second means of said clamp member includes hook means for engaging the second bar member.

5. In a spacer assembly for use in construction applications for supporting reinforcement bar members relative to a supporting surface for concrete construction, the combination comprising:

a spacer member configured for positioning relative to the supporting surface, said spacer member having saddle means for receiving a reinforcement bar member at least partially thereon;

a unitary clamp member, said clamp member including a first generally U-shaped portion with a bight portion and first and second leg portions;

coacting means on said clamp member and said spacer member for attaching said clamp member to said spacer member adjacent said saddle means, said clamp member including first means for fastening a first bar member at least partially within said saddle means, and second means for fastening a second bar member to said spacer member in intersecting relation to and atop said first bar member, and wherein said first and second leg portions are generally parallel and spaced a distance greater than the cross-dimension of said first bar member, and wherein said first means of said clamp member includes the space between said leg portions and said bight portion, and wherein said second means of said clamp member includes hook means for engaging the second bar member.

7. In a spacer assembly for use in construction application for supporting reinforcement bar member relative to a supporting surface for concrete construction, the combination comprising:

a spacer member configured for positioning relative to the supporting surface, said spacer member including a support post portion and having saddle means formed in a surface of said post portion for receiving a reinforcement bar member at least partially thereon;

a unitary clamp member including a first generally U-shaped portion with a bight portion and first and second leg portions;

coacting means on said clamp member and siad spacer member for attaching said clamp member to said spacer member adjacent said saddle means, said coacting means including aperture means extending through said post portion for receiving said leg portions insertion through said aperture means, said clamp member including first means for fastening a first bar member at least partially within said saddle means, and second means for fastening a second bar member to said spacer member in intersecting relation to and atop said first bar member.

8. The spacer assembly according to claim 7 wherein said first means of said clamp member is the area defined by said leg portions and said bight portion.

9. The spacer assembly according to claim 8 wherein said second means of said clamp member includes hook means.

10. The spacer assembly according to claim 9 wherein said hook means includes first and second spaced hook arms integrally formed with said clamp member.

11. In a spacer assembly for use in construction applications for supporting reinforcement bar members relative to a supporting surface for concrete construction, the combination comprising:

a unitary clamp member having first and second spaced leg portions;

a spacer member configured for positioning relative to the supporting surface, said spacer member including a support post portion and having saddle means formed in a surface of said post portion for receiving a reinforcement bar member at least partially thereon, and wherein said spacer member includes aperture means extending through a surface including said saddle means;

coacting means on said clamp member and said spacer member for attaching said clamp member to said spacer member adjacent said saddle means, said clamp member including first means for fastening a first bar member at least partially within said saddle means, and second means for fastening a second bar member to said spacer member in intersecting relation to and atop said first bar member, and wherein said coacting means includes tang arm means in proximate relation to said aperture means and serrations on said leg portions for detentingly engaging said tang arm means upon insertion of said leg portions into said aperture means.

12. In a spacer assembly for use in construction applications for supporting reinforcement bar members relative to a supporting surface for concrete construction, the combination comprising:

a spacer member configured for positioning relative to the supporting surface, said spacer member having an engagement surface with saddle means for receiving a reinforcement bar member at least partially thereon a fixed distance from the supporting surface;

an extender member having a first surface configured for mating coacting engagement with said engagement surface of said spacer member, and a second displaced surface a predetermined distance from said first surface, said second surface having generally identically configured saddle means;

a unitary clamp member;

coacting means on said clamp member and said spacer member for attaching said clamp member to said space membe with said extender member atop said spacer;

means on at least one of said spacer member and said extender member for engagement with a coactingly configured portion of said clamp member for enabling retention of at least one bar member on the saddle means of said extender by said clamp.

15. The spacer assembly according to claim 12 wherein said extender member is a unitary member.

16. The spacer assembly according to claim 15 wherein said coacting means on said clamp member and said spacer member includes aperture means in said spacer member and frictionally engaging arm means on said clamp member for engagement with the periphery of said aperture means on insertion of said arm means therethrough.

17. The spacer assembly according to claim 12 wherein said means on at least one of said spacer member and said extender member for engagement with a coactingly configured portion of said clamp member includes a pair of legs on said clamp member with serrated surfaces on said legs, and slot means on said spacer member adjacent the saddle means thereof for receiving said legs, said slot means further including tang means for frictionally engaging the serrated surfaces of said legs.

19. The spacer assembly according to claim 12 wherein said clamp member includes first means for fasteining a first bar member at least partially within said saddle means, and second means for fastening a second bar member to said spacer member in intersecting relation to and atop said first bar member.

20. The spacer assembly according to claim 12 wherein said clamp member includes a first gengerally U-shaped portion with a bight portion and first and second leg portions, and said coacting means on said clamp member and said spacer member includes first and second slot means in said spacer member for frictionally receiving said leg portions, and frictional surface means on said leg portions.

21. The spacer assembly according to claim 19 wherein said clamp member includes a first generally U-shaped portion with a bight portion and first and second leg portions, said first and second leg portions are generally parallel and spaced a distance greater than the cross-dimension of said first bar member, and wherein said first means of said clamp member includes the space between said leg portions and said bight portion.

22. The spacer assembly according to claim 21 wherein said second means of said clamp member includes hook means for engaging the second bar member.

13. The spacer member according to clamp 12 wherein said extender member is one of a plurality of extender members, each of said extender members having a different predetermined distance between said first and second surfaces thereof.

14. The spacer assembly according to clamp 12 wherein said coacting means on said member and said spacer member includes aperture means in said spacer member and arm members on said clamp member, said arm members including projections thereon for engagement with the periphery of said aperture means on insertion of said arm members therethrough.

18. The spacer assembly according to clamp 17 wherein said extender member includes opeinings in alignment with said slot means of said spacer member for enabling passage of the legs therethrough.

23. In a spacer assembly for use in construction applications for supporting reinforcement bar members relative to a supporting surface for concrete construction, wherein the spacer member is configured for positioning on a supporting surface for receiving a reinforcement bar member at least partially thereon within a saddle means a fixed distance from the supporting surface, with the bar member retained on the spacer by a clamp member having leg portions frictionally engaging slot means in the spacer member adjacent the saddle means, the improvement comprising:

an extender member having a first surface configured for mating coacting engagement with the saddle means of said spacer member, and a second displaced surface a predetermined distance from said first surface, said second surface having generally identically configured saddle means, said extender member being configured for permitting the leg portions of said clamp member to frictionally engage the slot means in the spacer member for retaining a bar member within the saddle means of said extender member with said extender member within the saddle means of said spacer member.

24. The improvement according to claim 23 wherein said extender member and said spacer member are provided with coacting frictionally engaging means for securing said extender member to said spacer member.

25. The improvement according to claim 24 wherein said coacting means on said clamp member and said spacer member includes aperture means in the saddle means of said spacer member and frictionally engaging arm means on said clamp member for engagement with the periphery of said aperture means on insertion of said arm means therethrough.

26. In a spacer assembly for use in construction applications for supporting reinforcement bar members relative to a supporting surface for concrete construction, wherein the spacer member is configured for positioning on a supporting surface for receiving a reinforcement bar member at least partially thereon within a saddle means a fixed distance from the supporting surface, with the bar member retained on the spacer by a clamp member having leg portions frictionally engaging slot means in the spacer member adjacent the saddle means, the improvement wherein said clamp member is a unitary member and includes first means for fastening a first bar member at least partially within said saddle means, and second means for fastening a second bar member to said spacer member in intersecting relation to and atop said first bar member.

27. The improvement according to claim 26 wherein said clamp member includes a first generally U-shaped portion with a bright portion and first and second generally parallel leg portions spaced a distance greater than the cross-dimension of said first bar member, and wherein said first means of said clamp member includes the space between said leg portions and said bight portion.

28. The improvement according to claim 27 wherein said second means of said clamp member includes hook means for engaging the second bar member.

29. The improvement according to claim 28 wherein said hooks means includes first and second spaced hook arms integrally formed with said clamp member.