Scaffolding

• US 3,938,290 A
• Filed: 02/04/1974
• Issued: 02/17/1976
• Est. Priority Date: 02/04/1974
• Status: Expired due to Term

• Current Assignee: Tower Scaffolding Limited
• Original Assignee: Tower Scaffolding Limited
• Inventors: Wyatt, Cyril F.
• Primary Examiner(s): Abbott, Frank L.
• Assistant Examiner(s): Friedman, Carl D.
• Application Number:
  US05/439,686
• Time in Patent Office: 743 Days
• Field of Search: 52/645, 52/646, 52/648, 52/758 W, 52/758 A, 52/758 R, 52/637, 52/638, 52/721, 52/754, 52/758 C, 403/199, 403/375, 403/217, 403/219, 403/245, 403/49, 211/182, 182/178, 182/151
• US Class Current: 52/646
• CPC Class Codes: E04G 1/06 comprising members with rod-like or tubular portions fitting together end to end, with or without separate connecting pieces
• CPC Class Codes: E04G 7/307 with tying means for connecting the bars or members
• CPC Class Codes: Y10T 403/44 Three or more members connected at single locus

Abstract

This invention relates to a scaffolding framework of horizontal and vertical scaffolding poles. The horizontal and vertical poles are joined together by scaffolding joints each comprising a pair of vertically disposed cheek plates spaced from one another and secured to an end of a horizontal scaffolding pole. The cheek plates are secured to said end on opposite sides thereof and project therefrom so as to embrace the adjoining vertical pole from opposite sides thereof. Said plates are each provided with a downwardly open socket which engages over a lug secured to and projecting transversely from the adjoining vertical pole.

Claims

1. A scaffolding framework comprising:

a. a plurality of spaced, vertical scaffolding poles, each having at least one pair of diametric lugs extending transversely therefrom at opposite side thereof and intermediate the ends thereof,

b. at least one horizontal pole having a scaffolding joint at each end thereof for engaging respective of said vertical poles,

c. each scaffolding joint comprising a pair of vertically disposed cheek plates spaced from each other and projecting beyond said end of said horizontal pole and forming an open-sided vertical channel therebetween receiving an intermediate part of an adjoining vertical pole, the width of the opening in the side of the channel being sufficient for said vertical pole to pass laterally therethrough and each of said cheek plates having a downwardly open recess therein engaging one of said pair of lugs on the adjoining vertical pole,

d. whereby said horizontal pole is supported against axial movement by the lugs and may be lowered and raised to cause said open recesses in said pair of cheek plates to engage and disengage respectively said pair of lugs and, when raised, may be moved horizontally towards and away from said vertical pole to cause the intermediate part of said vertical pole to pass through the opening in said vertical channel.

2. A scaffolding framework according to claim 1 wherein the vertical poles are provided with a plurality of said pair of lugs at intervals along the length thereof for locating the horizontal poles at a variety of different heights.

3. A scaffolding framework according to claim 1 wherein the pair of cheek plates include recesses to receive a second horizontal pole at an angle to the first horizontal pole, said joint further comprising clamping means to clamp said second pole in position in said recesses at said angle.

4. A scaffolding framework according to claim 3 wherein each cheek plate is provided with a downwardly hooked portion which forms a jaw to receive said second horizontal pole at right angles to the first horizontal pole.

5. A scaffolding framework according to claim 4 wherein the clamping means comprises a plate mounted between said pair of cheek plates and a screw-threaded bolt threadedly mounted in an aperture in said plate and operable to clamp said second horizontal pole in said jaw.

6. A scaffolding framework according to claim 5 wherein each of said recesses formed by said hooked portion has a mouth in one side thereof and a curved portion opposite said mouth off-set with respect to said mouth and said plate and bolt are located between the hooked portions of said cheek plates adjacent said off-set curved portion.

7. A scaffolding framework according to claim 1 wherein each of the downwardly open recesses comprises a downwardly open vertical slot in the lower edge of each cheek plate and each of the lugs on the vertical pole comprises a projecting fin which closely fits in said vertical slot.

8. A scaffolding framework according to claim 7 wherein the lug is of rectangular elevation with a longer dimension in the vertical direction.

9. A scaffolding framework according to claim 7 wherein the lug is of inverted T-shaped elevation.

10. A scaffolding framework according to claim 1 wherein the cheek plates are welded to the end of the horizontal scaffolding plate.

11. A scaffolding member comprising:

a. a pole and

b. a scaffolding joint at at least one end thereof,

c. said scaffolding joint comprising a pair of cheek plates spaced from each other and projecting beyond the end of said pole and forming an open-sided channel therebetween for receiving a second pole intermediate the ends thereof and at right angles to said first pole, the width of the opening in the side of the channel being sufficient for said second pole to pass laterally therethrough, and both of said cheek plates each having an open recess in one edge thereof for receiving a pair of diametric lugs extending from opposite sides of a second pole intermediate the ends thereof,

d. whereby the cheek plates and thus said first pole may be supported and held against axial movement by the lugs when the poles are assembled with the first pole horizontal and the second pole vertical and the first pole may be moved laterally to cause said open recesses in said pair of cheek plates to engage and disengage respectively said pair of lugs and may be moved axially to cause the intermediate part of said second pole to pass through the opening in said channel.

12. A scaffolding member according to claim 11 wherein each of said recesses comprises an open-ended slot formed in an edge of each cheek plate, said slots in said pair of cheek plates being adapted to fit over a pair of projecting fins formed on opposite sides of said second pole.

13. A scaffolding member according to claim 12 wherein the pair of cheek plates include recesses to receive a third scaffolding pole at an angle to the first and second poles, said joint further comprising means to clamp said third pole in position in said recesses relative to said first and second poles.

14. A scaffolding member according to claim 13 wherein each cheek plate is provided with a hooked portion which forms a jaw to receive said third pole at right angles to said first and second poles.

15. A scaffolding member according to claim 14 wherein the clamping means comprises a plate mounted between said pair of cheek plates and a screw-threaded bolt threadedly engaged in an aperture in said plate and operable to clamp said third pole in said jaw.

16. A scaffolding member according to claim 15 wherein each of said recesses formed by said hooked portion has a mouth in one side thereof and a curved portion opposite said mouth off-set with respect to said mouth and said plate and bolt are located between the hooked portions of said cheek plates adjacent said off-set curved portion.

17. A scaffolding member according to claim 11 wherein the cheek plates are welded to the pole.

18. A scaffolding framework comprising:

a. a plurality of spaced, vertically oriented scaffolding poles, each having a plurality of pairs of diametric lugs extending transversely therefrom at intervals on opposite sides thereof along the length thereof, each lug being of rectangular elevation with a longer dimension in the vertical direction,

b. at least one horizontal pole having a scaffolding joint at each end thereof for engaging respective of said vertical poles,

c. each scaffolding joint comprising a pair of vertically disposed cheek plates spaced from each other and projecting beyond said end of said horizontal pole and forming an open-sided vertical channel therebetween receiving an intermediate part of an adjoining vertical pole, the width of the opening in the side of the channel being sufficient for said vertical pole to pass laterally therethrough, each of said cheek plates having a downwardly open vertical slot in the lower edge thereof for closely fitting one of said pair of lugs on said vertical pole and each cheek plate having a downwardly hooked portion forming a jaw about a portion of a recess adapted for receiving a second horizontal pole at an angle to the first horizontal pole, clamping means being provided to clamp said second pole in position in said recess at said angle,

d. whereby said horizontal pole is supported and held against axial movement by the lugs and may be lowered and raised to cause said open recesses in said pair of cheek plates to engage and disengage respectively said pair of lugs and, when raised, may be moved horizontally towards and away from said vertical pole to cause the intermediate part of said vertical pole to pass through the opening in said vertical channel.