The bolt 46 is adapted to engage with the notch 45 of other plate 44. Each of the connecting plates 44 has a notch 45 and a bolt 46 secured thereto adjacent to the notch 45. Each of the L-shaped connecting plates 47 has a hole 47a formed to be corresponding to each other. Beam 40b has a joint pipe 48 projected from the pipe 43. 3, each of the symmetrical connecting means 40c comprises an L-shaped connecting plate 47 secured to the guide rail 41, and a connecting plate 44 secured to the connecting plate 47 and pipe 43. E04G3/28- Mobile scaffolds Scaffolds with mobile platformsįor the connection of one trussed beam 40a to the other beam 40b, connecting means 40c are symmetrically provided in the space between the guide rail 41 and pipe 43 at end portions of respective beams.adjustable in height supported by roofs or ceilings E04G3/22- Scaffolds essentially supported by building constructions, e.g.E04G3/00- Scaffolds essentially supported by building constructions, e.g.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.travelling scaffolding or vehicles specially designed to provide access to the undersides of bridges E01D19/106- Movable inspection or maintenance platforms, e.g.of locomotives Maintenance travellers Fastening of pipes or cables to bridges E01D19/10- Railings Protectors against smoke or gases, e.g.E01D19/00- Structural or constructional details of bridges.E01D- CONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS ASSEMBLY OF BRIDGES.E01- CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES.238000006011 modification reaction Methods 0.000 description 2.229910000831 Steel Inorganic materials 0.000 description 2.238000010276 construction Methods 0.000 claims abstract description 16.Assignors: HONDA, JUNKOU, NAKAI, SHIGEO Application granted granted Critical Publication of US4848516A publication Critical patent/US4848516A/en Anticipated expiration legal-status Critical Status Expired - Lifetime legal-status Critical Current Links OF JAPAN ASSIGNMENT OF ASSIGNORS INTEREST. OF JAPAN reassignment YONEYAMA KOGYO KABUSHIKI KAISHA, A CORP. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.) Filing date Publication date Priority claimed from JP61-32442 external-priority Priority claimed from JP3244286A external-priority patent/JPH0554551B2/ja Priority claimed from JP17439986A external-priority patent/JPH0572501B2/ja Priority claimed from JP17478086A external-priority patent/JPH0633679B2/en Application filed by YONEYAMA KOGYO KK filed Critical YONEYAMA KOGYO KK Assigned to YONEYAMA KOGYO KABUSHIKI KAISHA, A CORP. Original Assignee YONEYAMA KOGYO KK Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.) Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.) Expired - Lifetime Application number US07/014,922 Inventor Shigeo Nakai Junkou Honda Current Assignee (The listed assignees may be inaccurate. Google Patents US4848516A - Movable scaffoldÄownload PDF Info Publication number US4848516A US4848516A US07/014,922 US1492287A US4848516A US 4848516 A US4848516 A US 4848516A US 1492287 A US1492287 A US 1492287A US 4848516 A US4848516 A US 4848516A Authority US United States Prior art keywords hanger beams unit units guide rail Prior art date Legal status (The legal status is an assumption and is not a legal conclusion.
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