Classifications

• • E—FIXED CONSTRUCTIONS
  • E04—BUILDING
  • E04F—FINISHING WORK ON BUILDINGS, e.g. STAIRS, FLOORS
  • E04F21/00—Implements for finishing work on buildings
  • E04F21/02—Implements for finishing work on buildings for applying plasticised masses to surfaces, e.g. plastering walls
  • E04F21/06—Implements for applying plaster, insulating material, or the like
  • E04F21/08—Mechanical implements
• • 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
  • E04G21/00—Preparing, conveying, or working-up building materials or building elements in situ; Other devices or measures for constructional work
  • E04G21/02—Conveying or working-up concrete or similar masses able to be heaped or cast
  • E04G21/04—Devices for both conveying and distributing

Definitions

• the present invention relates to an apparatus for spraying walls, foundation walls, or the like, onto a preinsulated structural element serving as a basis, and where the sprayed material is concrete that is reinforced.
• Concrete spraying is a well-known method of constructing concrete walls/ foundation walls, and the like.
• Spray tools mounted on a vehicle positioned at a distance from the sur ⁇ face to be sprayed are commonly used for concrete spraying.
• manual control by a skilled operator is commonly required for such spraying operations.
• Spraying is mostly carried out onto a structural element, e. g. a formwork with reinforcing bars attached to said form- work.
• the apparatus according to the present invention permits sub ⁇ stantially fully automatic concrete spraying of walls, foun ⁇ dation walls, or the like, a structural element being pre ⁇ sent as a basis.
• the invention is especially important in the construction of e.g. terrace houses or larger develop ⁇ ment areas. Additionally, the invention does not require the presence of operators skilled in spraying for concrete spraying operations.
• the mentioned apparatus is charac ⁇ terized in that the spray nozzle for concrete is provided on a jig that is mounted for movement in relation to the struc ⁇ tural element, said jig being equipped with first means for keeping said spray nozzle at a predetermined distance from said structural element, second means for moving said spray nozzle up and down, and third means for moving said spray nozzle along said structural element.
• reinforcing bars may be avoided on the face of the structural element that is to be sprayed.
• Fig. l. is an elevation of the apparatus according to the present invention arranged on a structural element.
• Fig. 2 is a simplified plan view of the apparatus according to the invention.
• Spray nozzle 1 for concrete 3 is supplied with concrete through a supply hose 2.
• Said spray nozzle 1 is movable ver ⁇ tically in a guide 21 and it is moved by a conveying chain 4 running around a pulley 5 and being drived by a motor 6.
• Al ⁇ ternatively said conveying chain 4 might be replaced by a screw supported in a bearing 5 and driven by motor 6 in such a manner that said spray nozzle would be moved up and down due to screw rotation.
• a spacer 7 is attached to the lower portion of guide 21, said spacer 7 having a traversing wheel 8 mounted on its ⁇ ree end for contact with the surface of the wall element 23 to be sprayed with concrete.
• said spacer 7 and its traversing wheel 8 will be po ⁇ sitioned in front of spray nozzle 1 and outside its spray zone as seen in th.e direction of travel B of the apparatus.
• first traversing wheels 10, 10 * are mounted to roll along a rail 11 on top of structural element 23.
• Said traversing wheels 10, 10' are connected with a motor 15 via pulleys 12, 14 and a power transmission 13.
• said wheels may at one end be provided with a collar and, furthermore, a traversing wheel 9 having a vertical axis is connected with jig 18.
• a spray screen 20 may be provided along the entire horizontal length of said jig. In places where the,jig has to change its direction of move ⁇ ment it will be possible to replace said traversing wheels % 10, 10', and 9 with.an adjustable point-bearing means 16 in
• jig 18 is lifted by 2ugs 19 and placed in a desired bearing point.
• the apparatus according to the invention is especially suit ⁇
• said spacer 7 may also be adjustable as r-egards its distance from spray nozzle 1, as
• the vertical movement A of spray nozzle 1 as well as its horizontal movement B may be controlled by a timer circuit (not shown) or by the use of a conventional process control system. It will be obvious that the present invention is al ⁇
• motor 15 may be a step motor
• motor 6 is a step- free variable motor.
• the operator will be able to move the jig stepwise in a horizontal direction and then move the spray nozzle by the aid of motor 6.

Landscapes

• Engineering & Computer Science (AREA)
• Architecture (AREA)
• Civil Engineering (AREA)
• Structural Engineering (AREA)
• Mechanical Engineering (AREA)
• Spray Control Apparatus (AREA)
• On-Site Construction Work That Accompanies The Preparation And Application Of Concrete (AREA)

Applications Claiming Priority (2)

Publications (1)

Family

ID=19886398

Family Applications (1)

Country Status (4)

Cited By (7)

Citations (5)

• 1983
  • 1983-01-12 EP EP83900285A patent/EP0098845A1/en not_active Withdrawn
  • 1983-01-12 WO PCT/NO1983/000002 patent/WO1983002475A1/en unknown
  • 1983-01-17 IT IT19135/83A patent/IT1159836B/it active
  • 1983-01-18 ES ES519261A patent/ES8401783A1/es not_active Expired

Patent Citations (5)

Also Published As

Similar Documents

Legal Events