EP0225093A1 - Coffrage pour cellules-éléments - Google Patents
Coffrage pour cellules-éléments Download PDFInfo
- Publication number
- EP0225093A1 EP0225093A1 EP86308913A EP86308913A EP0225093A1 EP 0225093 A1 EP0225093 A1 EP 0225093A1 EP 86308913 A EP86308913 A EP 86308913A EP 86308913 A EP86308913 A EP 86308913A EP 0225093 A1 EP0225093 A1 EP 0225093A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- spacer
- inner form
- board
- molding device
- boards
- 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.)
- Granted
Links
- 238000000465 moulding Methods 0.000 title claims abstract description 27
- 125000006850 spacer group Chemical group 0.000 claims abstract description 58
- 238000009415 formwork Methods 0.000 abstract description 18
- 230000007246 mechanism Effects 0.000 abstract description 8
- 230000008878 coupling Effects 0.000 description 5
- 238000010168 coupling process Methods 0.000 description 5
- 238000005859 coupling reaction Methods 0.000 description 5
- 238000005266 casting Methods 0.000 description 2
- 229910001018 Cast iron Inorganic materials 0.000 description 1
- 210000000988 bone and bone Anatomy 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B28—WORKING CEMENT, CLAY, OR STONE
- B28B—SHAPING CLAY OR OTHER CERAMIC COMPOSITIONS; SHAPING SLAG; SHAPING MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER
- B28B7/00—Moulds; Cores; Mandrels
- B28B7/22—Moulds for making units for prefabricated buildings, i.e. units each comprising an important section of at least two limiting planes of a room or space, e.g. cells; Moulds for making prefabricated stair units
-
- 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
- E04G11/00—Forms, shutterings, or falsework for making walls, floors, ceilings, or roofs
- E04G11/06—Forms, shutterings, or falsework for making walls, floors, ceilings, or roofs for walls, e.g. curved end panels for wall shutterings; filler elements for wall shutterings; shutterings for vertical ducts
- E04G11/08—Forms, which are completely dismantled after setting of the concrete and re-built for next pouring
- E04G11/082—Retractable forms for the inside face of at least three walls
Definitions
- This invention relates to a molding device, particularly to a molding device adapted to mold box-like modular concrete units having large assembled formwork boards that can be removed entirely from the molded concrete structure and resetted quickly the next location.
- U.S. Patent No. 2,544,297 discloses an inner collapsible form having multiple plate parts interconnected at corners by means of locking devices. The inner form collapses and is released from the molded structure when the corner plate parts are unlocked.
- U.S. Patent No. 3,614,054 discloses an inner form with a core frame incorporating means for collapsing and stripping the inner form from the molded structure.
- U. S. Patent No. 3,934,808 discloses an inner form having side panels, end panels and corner panels. The corner panels can be pulled inward by a central single power means through a center linkage mechanism to leave a space between the adjacent side panel and end panel so that the whole inner form contracts.
- French Patent 2489206 discloses an inner form having internal wall shutters and wedge-shaped corner pieces which can be pulled inward by individual power means. The wedge-shaped corner pieces are not connected to the shutters and move individually independently of the shutters.
- the object of the present invention is to provide a molding device including a multi-sided contractible inner form and outer forms that can be connected detachable to the inner form.
- the inner form has, at each side, a wedge-shaped spacer formwork board, on which are mounted a power means and a linkage mechanism, disposed between and connected detachably to left and right component formwork boards.
- the wedge-shaped spacer boards in all sides of the inner form can be pulled inward by individual power means through individual linkage mechanisms to leave space for the approach of the left and right component formwork boards at all sides to contract the entire inner form. When each spacer board moves inward, the left and right component boards move relatively and approach one another.
- Each linkage mechanism includes a lever pivoted to a corresponding spacer board and connected to a hydraulic power means mounted on the spacer board, crank members mounted at the upper and lower sides of the spacer board and connected to the lever with longitudinal links. There are upper and lower links connecting left and right component boards to the crank members.
- top fastening means having a first top bar fixed to the top of the inner form and having a portion projecting outward, and a second top bar fixed to the top of the outer form and having a portion projecting inward.
- One of the top bars has a slot in the projecting portion thereof and clamping screws extending threadedly into the slot, and the other top bar has a protrusion in the projecting portion thereof to be inserted into the slot and to be clamped by the clamping screws.
- the detachable connecting means further includes insert spacer members to be disposed between the inner form and the outer forms, and screw fasteners for fastening the insert spacer members to the inner form and the outer forms.
- the molding device further includes a bottom form, bottom spacer members of truncated-cone shape attached detachably to the bottom form and projecting upward to be connected to and to support the inner form.
- a molding device in its molding position, including a bottom form board 71, a four-sided inner form 1 and four outer forms 2 for molding a box-like concrete structure.
- the inner form 1 comprises a pair of opposing first formwork boards 11a and a pair of opposing second formwork boards 11b interconnecting said first formwork boards 11a.
- Each of the first or second formwork boards is set up by using channel members 12 and batters 13, and includes a left and a right component board 11c and a spacer board 4 between the left and right component boards 11c.
- Each left or right component board 11c has a concrete forming face 11d, and a web 11e inclining in relation to the forming face 11d.
- the spacer board 4 has a concrete forming face 4a and two webs 4b inclining in relation to the forming face 4a and extending divergingly from the forming face 4a, forming a wedge shape in cross-section.
- the webs 4b of the spacer board 4 abut with and are secured to the webs 11e of the right and left component boards 11c by means of bolts 412.
- a hydraulic cylinder 42 which is used to provide power to move each spacer board 4 inward and outward relative to left and right formwork boards 11c, is mounted on a bracket 421 fixed to a transverse plate 423 which is secured to the webs 4b of the spacer board 4.
- the hydraulic cylinder 42 has a piston rod 422 connected to one end A of a lever 43 which is pivoted, at point B, to a bracket 432 mounted on a fixed support member 431 below the hydraulic cylinder 42.
- An upper longitudinal link 433 is connected to the lever 43 at a point C and extends therefrom longitudinally upward.
- a lower longitudinal link 434 which extends longitudinally downward therefrom.
- the points D and C are on two sides of the point B.
- Each of links 433 and 434 is connected to crank means 44 provided at the top and bottom of the spacer board 4.
- Each crank means 44 has an arm 445 connected to the end of link 433 or 434 and extending from a crank shaft 441 journalled in two journal supports 444 of the spacer board 4.
- Two arms 442 extend from crank wheels 44 disposed at the ends of the crank shaft 441.
- the arms 442 are connected pivotally to two links 443 respectively which are connected pivotally to the adjacent left and right component boards 11c.
- the webs 4b of the spacer board 4 are connected movably to the webs 11e of the left and right component boards 11c by using bolts 412.
- Each bolt 412 is threaded through a screw hole of one of the webs 4b into a block 411 which is fitted movably in an elongated guide groove 111 provided in the web 11e of the left or right component board 11c, as shown in Figs. 3A and 3B.
- the blocks 411 can move in the grooves 111 when the spacer board 4 is moved relative to the left and right component boards.
- Angled brackets 413 are fixed to the webs 4b and then screwed to the left and right component boards 11c to secure detachably the spacer board 4 to the left and right component boards 11c.
- each outer form board 2 is assembled using modular boards, channel members 22 and batters 23 and 24, and is secured to each side of the formwork board of the inner form 1 by securing means.
- the forming faces of the outer form boards are spaced apart from the forming faces of the inner form 1.
- the securing means includes insert spacer members 5 incorporating screw fasteners for fastening and spacing the forming faces of the outer form 2 and the inner form 1a, and top fastening means 6 for hanging the outer forms 2 on the inner form 1.
- the insert spacer members 5 can be truncated cone-shaped insert bodies 5A and/or insert rods 5B as shown in Figs. 4 and 6.
- the insert spacer members 5A and 5B are disposed between the forming faces of the lower sides of the outer forms 2 and the inner form 1 and are screwed to the channel members 22 and 12 of the outer forms 2 and the inner form 1 by using bolts 51 and 52.
- the truncated cone-shaped insert members 5A can be made of concrete, cast iron or the like. Each of them has two opposite threaded bores for engaging with the bolts 51 which are attached to the channel member 22 or 21.
- the insert rod 5B is a screw rod having two threaded ends for engaging with the bolts 52 having threaded bores.
- the top fastener means 6 includes top bars 61 secured transversely to a top channel member 12 of the inner form 1 at appropriate locations, and top bars 62 secured transversely to a top channel member 22 of the outer forms 2 at appropriate locations.
- Each of the first bars 61 has a portion projecting outward and a protrusion 611 of square cross-section at the top side of said portion.
- Each of the second bars 62 has a portion projecting inward and has a coupling member 623 disposed fixedly at the top side of said projecting portion.
- the coupling member 623 has a square slot 621 to receive the protrusion 611 and a rectangular slot 622 near the slot 621.
- top fastener means 6 may be a fastening bar 64 which are screwed to the top side of the outer form 2 and the top side of the inner form 1 at its two ends.
- the bottom formwork board 71 is held by horizontal beams 72 and vertical struts (not shown).
- the bottom side of the whole inner form 1 is supported by and spaced apart from the top face of the bottom formwork board 71 by using spacer members 5C.
- the spacer members 5C are truncated cone-shaped insert bodies which are placed on and screwed to the bottom formwork board 71.
- the molding device set up as described above can be used repeatedly and conveniently for casting modular concrete units.
- the inner form 1, outer forms 2, and bottom formwork board 71 can be detached from each other and carried to a next location without being disassembled into small units.
- the inner form 1 can be loosened and contracted to be released from the concrete structure by detaching the wedge-shaped spacer boards 4 from the left and right component boards 11d and moving then outward from between the left and right component boards 11b with the hydraulic means. After the inner form 1 is contracted it is lifted upward as a whole and sent to the next location.
- the bottom form board 1 must be set up. Then the inner form 1 is put on the spacer insert bodies 5C which are attached to the bottom formwork board 71. By operating the hydraulic means, the spacer boards 4 can be moved again into between left and right component boards 11d to expand the whole inner form 1 tightly to the molding position.
- each hydraulic cylinder 42 If the piston rod of each hydraulic cylinder 42 is pulled inward, the directions of the movements of the lever 43, links 433 and 434, crank members 44 and links 443 are reversed, and each spacer boards is moved again into between the adjacent left and right component boards.
- the inner form 1 is supported by the bottom form board 71 by means of spacer members 5C when the concrete floor is cast simultaneously with the molding of the concrete wall.
- the inner form 1 can be set up after the concrete floor is cast.
- truncated cone-shaped support bodies 5E are concealed in part in the concrete before the concrete is hardened, the top side of the support bodies being exposed on the surface of the concrete.
- Each support body 5E has a threaded bore 54 and an adjustable threaded core 55 received in the bore 54.
- screw holes 56, 57 and 58 provided in the body 54 and core 55.
- the support bodies 5E secured in a concrete floor can also be used for supporting an inner form 1 which is set up to mold the next wall structure or an bottom form 71 to mold the next concrete floor in a second floor above.
- vertical struts 9 are set upright with their lower ends screwed to the cores 55 of the support bodies 5E.
- the top end of each strut 9 is screwed to the beam 72 and the bottom form board 71 for supporting the form board 71.
- the height of the struts can be adjusted by rotating the core 55 relative to the support body 5E.
- the spacer members 5C can be screwed to hollow heads 91 of the struts 9, as shown in Fig. 12.
- the whole weight of the inner form 1 and outer forms 2 can be bone by the completely hardened concrete of a lower floor.
- the inner form 1 described in the present embodiment is a four-sided closed form
- the present invention is not limited to four sides only.
- the inner form 1 can be a closed form having more or less than four sides or an open form having three sides or more than three sides.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Architecture (AREA)
- Manufacturing & Machinery (AREA)
- Chemical & Material Sciences (AREA)
- Ceramic Engineering (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Moulds, Cores, Or Mandrels (AREA)
- Forms Removed On Construction Sites Or Auxiliary Members Thereof (AREA)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
AT86308913T ATE51183T1 (de) | 1985-11-26 | 1986-11-14 | Raumzellenschalung. |
Applications Claiming Priority (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP265910/85 | 1985-11-26 | ||
JP26591085A JPS62153464A (ja) | 1985-11-26 | 1985-11-26 | 型わくの割込装置 |
GB8604566A GB2186835B (en) | 1986-02-25 | 1986-02-25 | Moulding device for modular concrete unit |
GB8604566 | 1986-02-25 |
Publications (2)
Publication Number | Publication Date |
---|---|
EP0225093A1 true EP0225093A1 (fr) | 1987-06-10 |
EP0225093B1 EP0225093B1 (fr) | 1990-03-21 |
Family
ID=26290398
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP19860308913 Expired EP0225093B1 (fr) | 1985-11-26 | 1986-11-14 | Coffrage pour cellules-éléments |
Country Status (8)
Country | Link |
---|---|
EP (1) | EP0225093B1 (fr) |
AU (1) | AU563862B2 (fr) |
CA (1) | CA1284021C (fr) |
DE (1) | DE3669683D1 (fr) |
ES (1) | ES2014988B3 (fr) |
GR (1) | GR3000401T3 (fr) |
IN (1) | IN166742B (fr) |
MX (1) | MX161078A (fr) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0331484A2 (fr) * | 1988-03-02 | 1989-09-06 | Yuan-Ho Lee | Coffrage avec mécanisme de décoffrage manuel |
EP0514189A1 (fr) * | 1991-05-16 | 1992-11-19 | Strickland Industries, Inc. | Coffrage d'angle interne |
FR2729421A1 (fr) * | 1995-01-18 | 1996-07-19 | Lee Wen Yuan | Installation de coffrage et procede de decoffrage de panneaux de coffrage verticaux de l'installation de coffrage d'une unite en beton |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
AU607139B2 (en) * | 1986-06-03 | 1991-02-28 | Waco Kwikform Pty. Limited | Hydraulic self climbing formwork |
US4957272A (en) * | 1989-06-23 | 1990-09-18 | Lee Yuan Ho | Modular concrete form |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE2034894A1 (de) * | 1969-08-12 | 1971-02-25 | Helfenstein, Gerhard, Unteragen (Schweiz) | Innenschalung fur Bauten |
FR2168694A5 (fr) * | 1972-01-20 | 1973-08-31 | Tuyaux Bonna | |
FR2529243A1 (fr) * | 1982-06-23 | 1983-12-30 | Cercomat | Procede pour le moulage en beton de structures concaves et coffrages pour sa mise en oeuvre |
-
1986
- 1986-08-20 IN IN634/CAL/86A patent/IN166742B/en unknown
- 1986-11-14 ES ES86308913T patent/ES2014988B3/es not_active Expired - Lifetime
- 1986-11-14 EP EP19860308913 patent/EP0225093B1/fr not_active Expired
- 1986-11-14 DE DE8686308913T patent/DE3669683D1/de not_active Expired - Lifetime
- 1986-11-24 CA CA000523672A patent/CA1284021C/fr not_active Expired - Lifetime
- 1986-11-25 AU AU65660/86A patent/AU563862B2/en not_active Ceased
- 1986-11-26 MX MX444486A patent/MX161078A/es unknown
-
1990
- 1990-03-22 GR GR90400118T patent/GR3000401T3/el unknown
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE2034894A1 (de) * | 1969-08-12 | 1971-02-25 | Helfenstein, Gerhard, Unteragen (Schweiz) | Innenschalung fur Bauten |
FR2168694A5 (fr) * | 1972-01-20 | 1973-08-31 | Tuyaux Bonna | |
FR2529243A1 (fr) * | 1982-06-23 | 1983-12-30 | Cercomat | Procede pour le moulage en beton de structures concaves et coffrages pour sa mise en oeuvre |
Non-Patent Citations (1)
Title |
---|
SOVIET INVENTIONS ILLUSTRATED, section M, week 8610 DERWENT PUBLICATIONS LTD., London, P 64 * |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0331484A2 (fr) * | 1988-03-02 | 1989-09-06 | Yuan-Ho Lee | Coffrage avec mécanisme de décoffrage manuel |
EP0331484A3 (en) * | 1988-03-02 | 1990-05-30 | Yuan-Ho Lee | Molding device with hand operable mold releasing mechanism |
EP0514189A1 (fr) * | 1991-05-16 | 1992-11-19 | Strickland Industries, Inc. | Coffrage d'angle interne |
FR2729421A1 (fr) * | 1995-01-18 | 1996-07-19 | Lee Wen Yuan | Installation de coffrage et procede de decoffrage de panneaux de coffrage verticaux de l'installation de coffrage d'une unite en beton |
Also Published As
Publication number | Publication date |
---|---|
AU563862B2 (en) | 1987-07-23 |
EP0225093B1 (fr) | 1990-03-21 |
MX161078A (es) | 1990-07-24 |
CA1284021C (fr) | 1991-05-14 |
IN166742B (fr) | 1990-07-14 |
DE3669683D1 (de) | 1990-04-26 |
GR3000401T3 (en) | 1991-06-28 |
AU6566086A (en) | 1987-05-28 |
ES2014988B3 (es) | 1990-08-01 |
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