US2803045A - Joist brace - Google Patents
Joist brace Download PDFInfo
- Publication number
- US2803045A US2803045A US391537A US39153753A US2803045A US 2803045 A US2803045 A US 2803045A US 391537 A US391537 A US 391537A US 39153753 A US39153753 A US 39153753A US 2803045 A US2803045 A US 2803045A
- Authority
- US
- United States
- Prior art keywords
- joist
- brace
- joists
- web
- prongs
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
- 239000002184 metal Substances 0.000 description 3
- 241000699670 Mus sp. Species 0.000 description 1
- 230000001154 acute effect Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- XPYGGHVSFMUHLH-UUSULHAXSA-N falecalcitriol Chemical compound C1(/[C@@H]2CC[C@@H]([C@]2(CCC1)C)[C@@H](CCCC(O)(C(F)(F)F)C(F)(F)F)C)=C\C=C1\C[C@@H](O)C[C@H](O)C1=C XPYGGHVSFMUHLH-UUSULHAXSA-N 0.000 description 1
- 238000009408 flooring Methods 0.000 description 1
- 238000009432 framing Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 230000035515 penetration Effects 0.000 description 1
Images
Classifications
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04C—STRUCTURAL ELEMENTS; BUILDING MATERIALS
- E04C3/00—Structural elongated elements designed for load-supporting
- E04C3/02—Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04C—STRUCTURAL ELEMENTS; BUILDING MATERIALS
- E04C3/00—Structural elongated elements designed for load-supporting
- E04C3/02—Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces
- E04C2003/026—Braces
Definitions
- This invention relates to a joist brace and more particularly to a preformed metal joist brace which need not be cut for individual jobs.
- bracing In framing a building one of the most time-consuming jobs is the fitting of cross bracing or bridges for the floor and ceiling joists. These joists are theoretically equally spaced at distances of the order of 16 inches on centers but in practice the actual spacing may vary considerably, often as much as an inch in either direction. As a result, it is necessary to measure and cut braces individually for each pair of joists. These must then be nailed in place and it is rather diiiicult to properly secure both ends of the brace due to the close spacing of the joists. In addition, the bracing must be installed before the oor or other covering is laid on the tops of the joists in order to provide suiicient room for the carpenter to nail the upper ends of the braces.
- a metal joist brace which eliminates some of these problems has heretofore been used.
- This brace comprised a metal member which was sharply pointed at one end so that it might be jabbed into one joist while the other end was provided with means for securing it to the adjacent joist.
- One rather serious difficulty has developed with this prior brace however.
- the sharpened end of the brace cuts deeply into the side of the joist into which it is inserted and ⁇ as the building settles and the joists dry out the bracing has a tendency to loosen. This of course is undesirable as it weakens the structure and gives rise to squeaky floors.
- I have devised and disclose and claim herein an improved joist brace which is quite easy to install and which will not loosen in use.
- One feature of the invention is that it comprises an elongated member having first and second end portions, means at one end for engaging a substantial surface of one joist in a direction transverse to the grain thereof, and means at the other end for securing the member to an adjacent joist.
- the brace comprises an elongated channel member and an edge portion of the channel engages a substantial surface of one of the joists in a direction transverse to the grain thereof.
- the brace comprises an elongated U-shaped channel member which has spaced side portions and a connecting web, there being a pair of prongs formed at the junctures of the side portion and the web and engageable with one of the joists, the side portions at this end of the brace being cut at an angle to engage a substantial surface of the joist in a direction transverse to the grain thereof.
- the opposite end of the channel member includes a ange disposed at an obtuse angle with respect to the member by means of which it may be secured to an adjacent joist.
- Figure l is a fragmentary perspective view of a floor showing a plurality of joist braces in place;
- Figure 2 is a perspective view of the joist brace of this invention.
- Figure 3 isa fragmentary side elevation with a portion broken away, showing a joist brace installed between a pair-of joists;
- Figure 4 is a sectional view taken along line 4 ⁇ 4 ofl Figure 3; and b Figure 5 is a fragmentary detailed view of one end of the brace.
- Figure l s liows a pori tionl of a door, with joists10 ,v11V and 12 supporting floor-l ing 13.
- Joist braces 14 are interposed between each adjacent pair of joists in a suitable manner.
- conventional wooden braces which must be nailed at each end it is impractical to install the braces after the floor has been laid.
- the joists are not equally spaced the braces must individually be measured and fitted.
- the joist brace as shown in Figures 2-5 comprises an elongated U-shaped channel member 14 having side portions or walls 14a and a connecting web 14b. At one end of the channel member a pair of prongs 15 are formed at the junctures of the side portions 14a with web 14b. These prongs are adapted to be inserted in one joist as by jabbing the end of the brace against the joist.
- the ends 14a are cut at a suitable angle to the plane of the web so that when the brace is installed the ends of the side portions engage a substantial area of the surface of the joist transverse to thegrain thereof. This is shown in Figure 3 where the ends of the sides 14a engage the surface of joist 11.
- the other end of the brace member is provided with a turned down flange 16 which may have a pair of openings 17 therein by means of which it is suitably secured to joist 10 as by nailing.
- a pair of prongs 16a are also provided in flange 16 for initially securing the brace in place.
- Flange 16 is preferably disposed at an obtuse angle with respect to web 14b of the channel so that it will be ush with joist 10 and will not have to be bent during installation.
- braces may be installed either before o-r after the flooring is laid. As discussed above, one end of the brace is brought into engagement with one joist by jabbing the prongs 15 into it. The other end of the brace is then engaged by swinging the brace upwardly until prongs 16a engage the adjacent joist. The brace may then be secured in place by nailing flange 16 to the second joist. Of course both hands are free to facilitate the nailing. One length of brace may be used for a given joist spacing and will satisfactorily compensate for any normal variation in the spacing.
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- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Floor Finish (AREA)
Description
ug. 20, 1957 H, E HORNER 2,803,045
JOIST BRACE Filed Nov. l2, 1955 Q/fever@ @1/1/ JVM/'fafa TSM/wey United States Patent O JOIST BRACE Harlow E. Horner,` Chicago, Ill.
Application November 12, 1953, Serial No. 391,537 1 Claim. (Cl. 20w-,9)`
This invention relates to a joist brace and more particularly to a preformed metal joist brace which need not be cut for individual jobs.
In framing a building one of the most time-consuming jobs is the fitting of cross bracing or bridges for the floor and ceiling joists. These joists are theoretically equally spaced at distances of the order of 16 inches on centers but in practice the actual spacing may vary considerably, often as much as an inch in either direction. As a result, it is necessary to measure and cut braces individually for each pair of joists. These must then be nailed in place and it is rather diiiicult to properly secure both ends of the brace due to the close spacing of the joists. In addition, the bracing must be installed before the oor or other covering is laid on the tops of the joists in order to provide suiicient room for the carpenter to nail the upper ends of the braces.
A metal joist brace which eliminates some of these problems has heretofore been used. This brace comprised a metal member which was sharply pointed at one end so that it might be jabbed into one joist while the other end was provided with means for securing it to the adjacent joist. One rather serious difficulty has developed with this prior brace however. The sharpened end of the brace cuts deeply into the side of the joist into which it is inserted and `as the building settles and the joists dry out the bracing has a tendency to loosen. This of course is undesirable as it weakens the structure and gives rise to squeaky floors. I have devised and disclose and claim herein an improved joist brace which is quite easy to install and which will not loosen in use.
One feature of the invention is that it comprises an elongated member having first and second end portions, means at one end for engaging a substantial surface of one joist in a direction transverse to the grain thereof, and means at the other end for securing the member to an adjacent joist. Another feature is that the brace comprises an elongated channel member and an edge portion of the channel engages a substantial surface of one of the joists in a direction transverse to the grain thereof.
A further feature is that the brace comprises an elongated U-shaped channel member which has spaced side portions and a connecting web, there being a pair of prongs formed at the junctures of the side portion and the web and engageable with one of the joists, the side portions at this end of the brace being cut at an angle to engage a substantial surface of the joist in a direction transverse to the grain thereof. And another feature is that the opposite end of the channel member includes a ange disposed at an obtuse angle with respect to the member by means of which it may be secured to an adjacent joist.
Further features and advantages will be readily apparent from the following specification and from the drawings, in which:
Figure l is a fragmentary perspective view of a floor showing a plurality of joist braces in place;
Mice
Figure 2 is a perspective view of the joist brace of this invention;
Figure 3 isa fragmentary side elevation with a portion broken away, showing a joist brace installed between a pair-of joists;
Figure 4 is a sectional view taken along line 4`4 ofl Figure 3; and b Figure 5 is a fragmentary detailed view of one end of the brace.
Referringnow to the drawings, Figure l s liows a pori tionl of a door, with joists10 ,v11V and 12 supporting floor-l ing 13. Joist braces 14 are interposed between each adjacent pair of joists in a suitable manner. As pointed out previously with conventional wooden braces which must be nailed at each end it is impractical to install the braces after the floor has been laid. Furthermore, where, as is often the case, the joists are not equally spaced the braces must individually be measured and fitted.
The joist brace as shown in Figures 2-5 comprises an elongated U-shaped channel member 14 having side portions or walls 14a and a connecting web 14b. At one end of the channel member a pair of prongs 15 are formed at the junctures of the side portions 14a with web 14b. These prongs are adapted to be inserted in one joist as by jabbing the end of the brace against the joist. The ends 14a are cut at a suitable angle to the plane of the web so that when the brace is installed the ends of the side portions engage a substantial area of the surface of the joist transverse to thegrain thereof. This is shown in Figure 3 where the ends of the sides 14a engage the surface of joist 11. Inasmuch as all lumber is normally cut with the grain running lengthwise of the board, when these braces are installed with the channel opening upwardly the ends 14a' of the side walls will engage the joist transverse to the grain as described. This prevents the prongs 15 from penetrating too deeply into the joist and eventually loosening. I have found that if the ends Aof the side walls 14a of the joist member are cut at an angle of 79 with respect to the web 14b of the member, the brace will operate satisfactorily for most applications.
The other end of the brace member is provided with a turned down flange 16 which may have a pair of openings 17 therein by means of which it is suitably secured to joist 10 as by nailing. A pair of prongs 16a are also provided in flange 16 for initially securing the brace in place. Flange 16 is preferably disposed at an obtuse angle with respect to web 14b of the channel so that it will be ush with joist 10 and will not have to be bent during installation.
In practice the braces may be installed either before o-r after the flooring is laid. As discussed above, one end of the brace is brought into engagement with one joist by jabbing the prongs 15 into it. The other end of the brace is then engaged by swinging the brace upwardly until prongs 16a engage the adjacent joist. The brace may then be secured in place by nailing flange 16 to the second joist. Of course both hands are free to facilitate the nailing. One length of brace may be used for a given joist spacing and will satisfactorily compensate for any normal variation in the spacing.
While I have shown and described certain embodiments of my invention, it is to be understood that it is capable of many modifications. Changes therefore in the construction and arrangement may be made without departing from the spirit and scope of the invention as disclosed in the appended claim.
I claim:
A joist brace of the character described for bracing adjacent joists having sheathing on one side thereof, cornprising, a U-shaped channel having two spaced apart leg portions joined by a web portion and adapted to extend at an angle between the surface of one of said joists v) i adjacent said sheathing and the surface of the other of said joists remote from said sheathing, one end of said channel being formed at an angle, with said channel leg portions describing an obtuse angle ladjacent said web and an acute angle remote from the Web, there being al pair of spaced prongs formed at said one end of' the channel adjacent the intersection of the legs and web portions, said prongs being insertable in said one joist at points spaced from said sheathing by said leg portions with said end surfaces of said leg portions lying across the grain of said one joist, preventing excessive penetration of said prongs, and a flange formed on the other end of said channel member and extending from the web portion in a direction away from the leg portions and in a plane generally parallel to the plane of said end surfacesV 4 of the leg portions for securing the channel member to the other of said joists.
References Cited in the le of this patent UNITED STATES PATENTS 267,385 Walter Nov. 14, 1882 918,949 Bertram Apr. 20, 1909 1,204,956 Day Nov. 14, 1916 2,247,024 Hurley June 24, 1941 2,442,726 Gstalder June 1, 1948 2,658,241 Houghton et al Nov. 10, 1953 FOREIGN PATENTS 502,492 Canada May 18, 1954
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US391537A US2803045A (en) | 1953-11-12 | 1953-11-12 | Joist brace |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US391537A US2803045A (en) | 1953-11-12 | 1953-11-12 | Joist brace |
Publications (1)
Publication Number | Publication Date |
---|---|
US2803045A true US2803045A (en) | 1957-08-20 |
Family
ID=23546997
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US391537A Expired - Lifetime US2803045A (en) | 1953-11-12 | 1953-11-12 | Joist brace |
Country Status (1)
Country | Link |
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US (1) | US2803045A (en) |
Cited By (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2867854A (en) * | 1958-01-27 | 1959-01-13 | Acrometal Products Inc | Bridging strut |
US3018522A (en) * | 1959-11-09 | 1962-01-30 | Timber Engineering Co | Metal bridging for joists |
US3334461A (en) * | 1965-01-11 | 1967-08-08 | Internat Res Corp | Fire baffle for walls |
US3736718A (en) * | 1972-07-13 | 1973-06-05 | J Sylvan | Building construction member |
US4333294A (en) * | 1980-03-17 | 1982-06-08 | Catnic Components Limited | Herringbone struts |
FR2827893A1 (en) * | 2001-07-27 | 2003-01-31 | Mitek Holdings Inc | CONSTRUCTION FARM, FARM FORMING METHOD AND AMOUNTS THEREFOR |
US6758022B1 (en) * | 1999-08-25 | 2004-07-06 | Mitek Holdings, Inc. | Structural framework and webs therefor |
AU2004201382B2 (en) * | 1999-08-25 | 2007-05-17 | Mitek Holdings, Inc. | Structural framework and webs therefor |
Citations (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US267385A (en) * | 1882-11-14 | Bridging for joists | ||
US918949A (en) * | 1908-06-13 | 1909-04-20 | Paul E Bertram | Joist-bridging. |
US1204956A (en) * | 1916-07-08 | 1916-11-14 | Wheeling Corrugating Company | Bridging for joists. |
US2247024A (en) * | 1940-04-30 | 1941-06-24 | Earl H Hurley | Portable support |
US2442726A (en) * | 1946-06-19 | 1948-06-01 | Paul A Gastalder | Bridging for floor joists and the like |
US2658241A (en) * | 1950-07-10 | 1953-11-10 | Jr Dale B Houghton | Bridging |
CA502492A (en) * | 1954-05-18 | Edewaard Menno | Metal cross bracing for wood joists |
-
1953
- 1953-11-12 US US391537A patent/US2803045A/en not_active Expired - Lifetime
Patent Citations (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US267385A (en) * | 1882-11-14 | Bridging for joists | ||
CA502492A (en) * | 1954-05-18 | Edewaard Menno | Metal cross bracing for wood joists | |
US918949A (en) * | 1908-06-13 | 1909-04-20 | Paul E Bertram | Joist-bridging. |
US1204956A (en) * | 1916-07-08 | 1916-11-14 | Wheeling Corrugating Company | Bridging for joists. |
US2247024A (en) * | 1940-04-30 | 1941-06-24 | Earl H Hurley | Portable support |
US2442726A (en) * | 1946-06-19 | 1948-06-01 | Paul A Gastalder | Bridging for floor joists and the like |
US2658241A (en) * | 1950-07-10 | 1953-11-10 | Jr Dale B Houghton | Bridging |
Cited By (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2867854A (en) * | 1958-01-27 | 1959-01-13 | Acrometal Products Inc | Bridging strut |
US3018522A (en) * | 1959-11-09 | 1962-01-30 | Timber Engineering Co | Metal bridging for joists |
US3334461A (en) * | 1965-01-11 | 1967-08-08 | Internat Res Corp | Fire baffle for walls |
US3736718A (en) * | 1972-07-13 | 1973-06-05 | J Sylvan | Building construction member |
US4333294A (en) * | 1980-03-17 | 1982-06-08 | Catnic Components Limited | Herringbone struts |
US6758022B1 (en) * | 1999-08-25 | 2004-07-06 | Mitek Holdings, Inc. | Structural framework and webs therefor |
AU2004201382B2 (en) * | 1999-08-25 | 2007-05-17 | Mitek Holdings, Inc. | Structural framework and webs therefor |
FR2827893A1 (en) * | 2001-07-27 | 2003-01-31 | Mitek Holdings Inc | CONSTRUCTION FARM, FARM FORMING METHOD AND AMOUNTS THEREFOR |
GB2377950B (en) * | 2001-07-27 | 2004-11-17 | Mitek Holdings Inc | Structural framework, method of forming the framework and webs therefor |
US6834470B2 (en) | 2001-07-27 | 2004-12-28 | Mitek Holdings, Inc. | Structural framework, method of forming the framework and webs therefor |
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