GB1590522A - Scaffold board - Google Patents
Scaffold board Download PDFInfo
- Publication number
- GB1590522A GB1590522A GB2099478A GB2099478A GB1590522A GB 1590522 A GB1590522 A GB 1590522A GB 2099478 A GB2099478 A GB 2099478A GB 2099478 A GB2099478 A GB 2099478A GB 1590522 A GB1590522 A GB 1590522A
- Authority
- GB
- United Kingdom
- Prior art keywords
- ribs
- web
- channel
- scaffold board
- length
- 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
Links
Classifications
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04G—SCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
- E04G1/00—Scaffolds primarily resting on the ground
- E04G1/15—Scaffolds primarily resting on the ground essentially comprising special means for supporting or forming platforms; Platforms
- E04G1/152—Platforms made of metal or with metal-supporting frame
Landscapes
- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Mechanical Engineering (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Road Paving Structures (AREA)
Description
(54) IMPROVED SCAFFOLD BOARD
(71) We, KWIKFORM LIMITED, a Brit
ish Company of Waterloo Road, Birming
ham, West Midlands, do hereby declare the
invention, for which we pray that a patent
may be granted to us, and the method by
which it is to be performed, to be particularly
described in and by the following state
ment:
This invention relates to an improvement
in or modification of the scaffold board
described and claimed in our previous patent
No. 1,245,942.
According to our previous invention, there
is provided a scaffold board comprising a
strip metal member of inverted channel
configuration in cross section with opposite
ends of the channel being closed, the depen
dent sides of the channel being formed with
opposed edge portions which extend towards
one another to provide stiffening for the
channel sides as well as downwardly directed
abutment faces for engaging with the
transom members or other supports for the
scaffold board, said opposed edge portions
terminating in upstanding stiffening edge
flanges, the web of the channel being formed
with a number of ribs spaced apart along the
length of the channel formed integrally with
the metal of the web by being pressed
downwardly out of the plane thereof so as to
form elongated depressions in the upper
surface of the web, each rib extending
transversely of the length of the channel and serving not only to stiffen the channel web - but:also to provide non-skid properties to the
upper surface of the channel web for a
workman moving in a direction along the
length of the channel member.
It is an object of the present invention to
provide an improvement in or modification
of the scaffold board of our patent No.
1,245,942.
According to the present invention, we
provide a scaffold board comprising a strip
metal member of inverted channel configura
tion in cross section with opposite ends of the
channel being closed, the dependent sides of
the channel being formed with opposed edge
portions which extend towards one another
to provide stiffening for the channel sides as well as downwardly directed abutment faces for engaging with the transom members or other supports for the scaffold board, said opposed edge portions terminating in upstanding stiffening edge flanges, the web of the channel being formed with a number of ribs spaced apart along the length of the channel formed integrally with the metal of the web being formed upwardly out of the plane thereof so as to form elongated projections in the upper surface of the web, each rib extending generally transversely of the length of the channel and serving not only to stiffen the channel web but also to provide non-skid properties to the upper surface of the channel web for a workman on the channel member.
The ribs may be arranged in rows along the length of the channel, and inclined at an acute angle less than 90 to the length of the channel. The ribs of alternate rows may be substantially at 90 to one another and adjacent spaces between the ribs in the rows either side.
Although the ribs are preferably inclined with respect to the length of the channel member, they may be parallel to or at 90 to the length of the channel.
Where, as is preferred, the metal of which the board is formed is mild steel, a corrosion resistant coating may be applied to the entire surface of the metal so as to protect the scaffold board against corrosion and thus prolong its useful life.
The entire surface of the board may be galvanised and the upper surface of the web provided with an anti-skid surface by shotblasting. The upper surface of the web may be coated with a layer of non-skid material to further improve the non-skid properties of the channel member.
Alternatively, the strip metal may be aluminium alloy, in which case an anti-skid coating may be applied to the web, but protection against corrosion may not be necessary.
At least some of the ribs of the web may be provided with jagged-edged openings, thus the anti-skid characteristics of the web may be enhanced.
One preferred embodiment of the present invention will now be described with the aid of the accompanying drawings in which: Figure 1 is a plan view of a portion of a scaffold board according to the invention,
Figure 2 is a longitudinal section along the line 2 2 of Figure 1 and
Figure 3 is a sectional view on the line 3-3 of Figure 1.
Referring to the drawings, there is shown a scaffold board 5 which is formed from a length of mild steel strip metal, preferably by rolling, to inverted channel configuration so as to provide a horizontal web 12 having integral depending sides 13 The lower edges of the dependent sides are provided with inwardly extending horizontally opposed stiffening edge portions 14 which terminate in upstanding stiffening edge flanges 15. The board may be formed by alternative means such as by pressing between tools and a pressbrake.
The opposite ends of the channel are closed by end members 16 of similar crosssectional shape to the side members 13.
The upper surface of the web 12 is formed with a number of ribs 10 arranged in parallel rows A and B. The ribs of the rows A are inclined at an angle substantially 45 to the length of the board. The ribs of the rows B are also inclined at an angle substantially 45 to the length of the board but are substantially at 90 to the ribs of the rows A.
Although the ribs are preferably inclined to the length of the board, they may alternatively be parallel to or substantially perpendicular to the length of the board.
Also, although the ribs of rows B are preferably substantially at 90 to the ribs of the rows A, all of the ribs may extend generally in the same direction, or be otherwise orientated.
As well as improving the anti-skid properties of the web, the ribs also give the board substantial strength.
The entire surface of the metal is provided with a corrosion resistant coating to prolong its useful life, and the upper web surface is roughened by shotblasting to improve its anti-skid characteristics.
Alternatively, the upper surface of the web may be provided with a coating of non-skid material such as a glue and grit mixture.
If desired, as the ribs are formed in the tipper surface of the web by pressing the force provided to press out the ribs may be such that at least some of the ribs crack during the pressing process so that the ribs formed have jagged-edged openings that enhances the anti-skid characteristic of the web.
The jagged-edged openings may be formed at opposite ends of the ribs and extend transversely thereof or, if greater force is used, may extend longitudinally
along the major part of the length of the ribs.
WHAT WE CLAIM IS:
I. A scaffold board comprising a strip
metal member of inverted channel configura
tion in cross-section with opposite ends of the
channel being closed, the dependent sides of
the channel being formed with opposed edge
portions which extend toward one another to
provide stiffening for the channel sides as
well as downwardly directed abutment faces
for engaging with the transom members or
other supports for scaffold boards, said
opposed edge portions terminating in up
standing stiffening edge flanges, the web of
the channel being formed with a number of
ribs spaced apart along the length of the
channel formed integrally with the metal of
the web being formed upwardly out of the plane thereof so as to form elongated projec
tions in the upper surface of the web, each rib extending generally transversely of the length of the channel and serving not only to
stiffen the channel web but also to provide non-skid properties to the upper surface of the channel web for a workman on the channel member.
2. A scaffold board according to Claim 1 is made of mild steel.
3. A scaffold board according to.Claim 2 wherein the entire surface of the board is provided with a corrosion resistant coating.
4. A scaffold board according to Claim 3 wherein the web is shot blasted to roughen the surface.
5. A scaffold board according to any one of the preceding claims wherein the ribs are arranged in rows along the length of the channel.
6. A scaffold board according to any one of the preceding claims wherein the ribs are parallel to or at 90t to the length of the channel.
7. A scaffold board according to Claim 5 wherein the ribs of alternate rows may be at an angle of 90 or less to the ribs in the rows either side.
8. A scaffold board according to Claim 5 wherein the ribs are adjacent the spaces between the ribs in the rows either side.
9. A scaffold board according to Claim 1 or Claims 5 to 8 which is made of aluminium alloy.
10. A scaffold board according to any one of the preceding claims wherein the upper surface of the web is protected with a layer of non-skid material.
11. A scaffold board according to any one of the preceding claims in which at least some of the ribs of the web are provided with jagged-edged openings.
12. A scaffold board substantially as hereinbefore described with reference to and as shown in the accompanying drawings.
**WARNING** end of DESC field may overlap start of CLMS **.
Claims (12)
- **WARNING** start of CLMS field may overlap end of DESC **.One preferred embodiment of the present invention will now be described with the aid of the accompanying drawings in which: Figure 1 is a plan view of a portion of a scaffold board according to the invention, Figure 2 is a longitudinal section along the line 2 2 of Figure 1 and Figure 3 is a sectional view on the line 3-3 of Figure 1.Referring to the drawings, there is shown a scaffold board 5 which is formed from a length of mild steel strip metal, preferably by rolling, to inverted channel configuration so as to provide a horizontal web 12 having integral depending sides 13 The lower edges of the dependent sides are provided with inwardly extending horizontally opposed stiffening edge portions 14 which terminate in upstanding stiffening edge flanges 15. The board may be formed by alternative means such as by pressing between tools and a pressbrake.The opposite ends of the channel are closed by end members 16 of similar crosssectional shape to the side members 13.The upper surface of the web 12 is formed with a number of ribs 10 arranged in parallel rows A and B. The ribs of the rows A are inclined at an angle substantially 45 to the length of the board. The ribs of the rows B are also inclined at an angle substantially 45 to the length of the board but are substantially at 90 to the ribs of the rows A.Although the ribs are preferably inclined to the length of the board, they may alternatively be parallel to or substantially perpendicular to the length of the board.Also, although the ribs of rows B are preferably substantially at 90 to the ribs of the rows A, all of the ribs may extend generally in the same direction, or be otherwise orientated.As well as improving the anti-skid properties of the web, the ribs also give the board substantial strength.The entire surface of the metal is provided with a corrosion resistant coating to prolong its useful life, and the upper web surface is roughened by shotblasting to improve its anti-skid characteristics.Alternatively, the upper surface of the web may be provided with a coating of non-skid material such as a glue and grit mixture.If desired, as the ribs are formed in the tipper surface of the web by pressing the force provided to press out the ribs may be such that at least some of the ribs crack during the pressing process so that the ribs formed have jagged-edged openings that enhances the anti-skid characteristic of the web.The jagged-edged openings may be formed at opposite ends of the ribs and extend transversely thereof or, if greater force is used, may extend longitudinally along the major part of the length of the ribs.WHAT WE CLAIM IS: I. A scaffold board comprising a strip metal member of inverted channel configura tion in cross-section with opposite ends of the channel being closed, the dependent sides of the channel being formed with opposed edge portions which extend toward one another to provide stiffening for the channel sides as well as downwardly directed abutment faces for engaging with the transom members or other supports for scaffold boards, said opposed edge portions terminating in up standing stiffening edge flanges, the web of the channel being formed with a number of ribs spaced apart along the length of the channel formed integrally with the metal of the web being formed upwardly out of the plane thereof so as to form elongated projec tions in the upper surface of the web, each rib extending generally transversely of the length of the channel and serving not only to stiffen the channel web but also to provide non-skid properties to the upper surface of the channel web for a workman on the channel member.
- 2. A scaffold board according to Claim 1 is made of mild steel.
- 3. A scaffold board according to.Claim 2 wherein the entire surface of the board is provided with a corrosion resistant coating.
- 4. A scaffold board according to Claim 3 wherein the web is shot blasted to roughen the surface.
- 5. A scaffold board according to any one of the preceding claims wherein the ribs are arranged in rows along the length of the channel.
- 6. A scaffold board according to any one of the preceding claims wherein the ribs are parallel to or at 90t to the length of the channel.
- 7. A scaffold board according to Claim 5 wherein the ribs of alternate rows may be at an angle of 90 or less to the ribs in the rows either side.
- 8. A scaffold board according to Claim 5 wherein the ribs are adjacent the spaces between the ribs in the rows either side.
- 9. A scaffold board according to Claim 1 or Claims 5 to 8 which is made of aluminium alloy.
- 10. A scaffold board according to any one of the preceding claims wherein the upper surface of the web is protected with a layer of non-skid material.
- 11. A scaffold board according to any one of the preceding claims in which at least some of the ribs of the web are provided with jagged-edged openings.
- 12. A scaffold board substantially as hereinbefore described with reference to and as shown in the accompanying drawings.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB2099478A GB1590522A (en) | 1978-05-20 | 1978-05-20 | Scaffold board |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB2099478A GB1590522A (en) | 1978-05-20 | 1978-05-20 | Scaffold board |
Publications (1)
Publication Number | Publication Date |
---|---|
GB1590522A true GB1590522A (en) | 1981-06-03 |
Family
ID=10155367
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB2099478A Expired GB1590522A (en) | 1978-05-20 | 1978-05-20 | Scaffold board |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB1590522A (en) |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2167479A (en) * | 1984-11-24 | 1986-05-29 | Eberhard Layher | Scaffolding frame panel |
WO1992001131A1 (en) * | 1990-07-06 | 1992-01-23 | Josef Welser Ohg Profilier- Und Stanzwerk | Scaffolding plank and process for producing it |
US6105723A (en) * | 1996-12-23 | 2000-08-22 | Harsco Corporation | Steel plank for scaffolding |
US6817447B1 (en) * | 1994-12-07 | 2004-11-16 | Pf Management Aps | Stair or ladder steps of the plate-shaped step type |
-
1978
- 1978-05-20 GB GB2099478A patent/GB1590522A/en not_active Expired
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2167479A (en) * | 1984-11-24 | 1986-05-29 | Eberhard Layher | Scaffolding frame panel |
WO1992001131A1 (en) * | 1990-07-06 | 1992-01-23 | Josef Welser Ohg Profilier- Und Stanzwerk | Scaffolding plank and process for producing it |
US5443137A (en) * | 1990-07-06 | 1995-08-22 | Josef Welser Ohg Profilier- Und Stanzwerk | Scaffold board and method for making the same |
US6817447B1 (en) * | 1994-12-07 | 2004-11-16 | Pf Management Aps | Stair or ladder steps of the plate-shaped step type |
US6105723A (en) * | 1996-12-23 | 2000-08-22 | Harsco Corporation | Steel plank for scaffolding |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
PS | Patent sealed | ||
732 | Registration of transactions, instruments or events in the register (sect. 32/1977) |