EP0331484B1 - Molding device with hand operable mold releasing mechanism - Google Patents

Molding device with hand operable mold releasing mechanism Download PDF

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Publication number
EP0331484B1
EP0331484B1 EP89302076A EP89302076A EP0331484B1 EP 0331484 B1 EP0331484 B1 EP 0331484B1 EP 89302076 A EP89302076 A EP 89302076A EP 89302076 A EP89302076 A EP 89302076A EP 0331484 B1 EP0331484 B1 EP 0331484B1
Authority
EP
European Patent Office
Prior art keywords
face
boards
rack
support
shaft
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 - Lifetime
Application number
EP89302076A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP0331484A3 (en
EP0331484A2 (en
Inventor
Yuan-Ho Lee
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Individual
Original Assignee
Individual
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 as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Individual filed Critical Individual
Priority to AT89302076T priority Critical patent/ATE85386T1/de
Publication of EP0331484A2 publication Critical patent/EP0331484A2/en
Publication of EP0331484A3 publication Critical patent/EP0331484A3/en
Application granted granted Critical
Publication of EP0331484B1 publication Critical patent/EP0331484B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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 for concrete construction which can be released easily from a formed concrete structure and easily reset at another location for a next molding.
  • 4,679,762 of the inventor of this application discloses a form assembly which is used to form an enclosed multi-sided wall as shown in Figure 1 and includes component boards and wedge-shaped spacer boards which are operated by a rack-and-gear mechanism including a plurality of worm wheels mounted on vertical shafts and horizontal shafts to drive rack members.
  • a rack-and-gear mechanism including a plurality of worm wheels mounted on vertical shafts and horizontal shafts to drive rack members.
  • the spacer boards must be moved inward simultaneously.
  • the form boards on two sides of the spacer boards also move simultaneously so that a great deal of force is needed to simultaneously release the entire form assembly. Accordingly, a powerful hydraulic device is necessary for operation.
  • this form assembly is suitable only for forming enclosed multi-sided walls.
  • An object of the invention is to provide a molding device which has a simple construction and which can be operated easily and with less power than that required by the prior form assemblies.
  • Another object of the invention is to provide a molding device for forming an enclosed multi-sided wall which can be released in part from the formed wall.
  • Still another object of the invention is to provide a molding device which can easily be removed manually from the formed structure.
  • US-A-2031815 discloses a force imparting, sliding movement mechanism comprising a rack member having a thick plate member which has a top surface provided with rack teeth, a mounting seat having a mounting hole, a horizontal shaft inserted in the mounting hole, a lever connected to the shaft for turning the shaft, an eccentric member fixed to the shaft, and a pawl member having one end rotatably sleeved around the eccentric member and an opposite free end to engage with the rack teeth, the pawl member being capable of swing of swinging freely.
  • EP-A-0225093 discloses a molding device comprising two vertical component form boards each having a forming face and a base support extending horizontally at the bottom of each of the component form boards, each base support having a joint end face forming an acute angle with the forming face and a substantially horizontal top support face adjacent to the end face; a spacer board disposed between the component form boards and having a vertical forming face and a base support extending horizontally from the bottom of the spacer board, the base support of the spacer board having two diverging joint end faces each abutting with and releaseably connected to a respective joint end face of the component boards and two substantially horizontal top support faces adjacent to the diverging joint end faces; and means for releasably connecting the form boards to the spacer board; and according to the present invention, such a device is characterised by a force imparting, sliding movement mechanism operably associated with the horizontal support face of each of the component boards and the horizontal support face of the spacer board adjacent the support face of each of the component boards, the mechanism including a rack
  • a molding device 11 for molding an inner side of a four-sided wall including two angled component form boards 12, two angled component form boards 13 and four spacer boards 14 which are interconnected to establish a four-sided forming face for a four wall room.
  • Each spacer board 14 has a wedge-shaped cross-section and two diverging end faces 14a extending from a forming face 14b of the spacer board 14.
  • Each form board 12 has two inclined end faces 12a abutting with and connected releaseably to adjacent end faces 14a of the spacer board 14.
  • each form board 13 has two inclined end faces 13a abutting with and connected releaseably to adjacent end faces 14a of the spacer board 14.
  • Support bases 12c, 13c and 14c are disposed respectively at the bottom sides of the form boards 12 and 13 and the spacer boards 14.
  • each slanted side of the base 12c or 13c is provided with an elongated groove 21 which has a restricted elongated opening 21a and receives an elongated bar 22 in a slideable position.
  • Each bar 22 is connected through screws 23 to one side of the base 14c of each spacer board 14. The bar 22 can be prevented from moving in the groove 21 by tightening the screws 23, thereby securing together the spacer board 14 and the adjacent form board 12 and 13.
  • each spacer board 14 On the base 14c of each spacer board 14 are mounted two rack members 18 near the end faces of the spacer board 14.
  • Each rack member 18 is a thick plate which is provided with teeth 19 at the top surface thereof and an upward stop edge flange 20.
  • the rack member 18 is attached removably to the base 14c. The removable attachment may be accomplished by placing the rack member in a recess 181 of the base 14c.
  • an operating means 25 is mounted through a mounting seat 15 on one side of each base 12c or 13c adjacent to each rack member 18.
  • the mounting seat 15 includes two raised parts provided respectively with outer and inner journal holes 16 and 17 and a stop projection 15a.
  • the stop projection 15a is used to engage with the stop flange 20 of the rack member so as to stop the movement of the rack member.
  • an operating means 25, to operably associate with the rack member includes a lever 26 connected to an operating shaft 27 which can be inserted changeably in two mounting holes 16 and 17.
  • An eccentric member 34 is mounted on the shaft 27 adjacent to the lever 26.
  • a pawl member 28 is sleeved with one end thereof rotatably around the eccentric member 34.
  • the free end of the pawl member 28 has two opposed edge teeth 29 and 30.
  • Adjacent to the eccentric member 34 is another pawl member 31 which is mounted on an end portion of the shaft 27 to swing thereabout and which is prevented from escaping by means of a locking screw 36.
  • the pawl also has two opposed edge teeth 32 and 33.
  • FIG. 10 The operation of releasing the form of the invention is illustrated in Figure 10. Firstly, the two form boards 13 are moved inward by operating the levers 26 so as to move the spacer boards 14 in the directions shown by arrow A relative to the form boards 12. Then, the form boards 12 are moved in the directions shown by arrow B by moving inward the spacer boards 14 relative to the form boards 13. The movement of the two form boards 12 or 13 can be effected either simultaneously or successively.
  • the eccentric member 34 will cause the pawl member 28 to move slightly forward, thereby moving forward the rack member.
  • the pawl member 28 moves rearward and engages with a next tooth of the rack member.
  • the rack member 18 can be moved in a direction shown by arrow 50 to cause the spacer board 14 and the form board 13 to move to their molding positions.
  • the movement of the rack member 18 stops when the flange 20 of the rack 18 contacts the projection 15a of the mounting seat 15.
  • the tooth 32 of the pawl 31 prevents the backward movement of the rack member when the lever is operated.
  • FIG 9 shows an alternative mounting seat 80 and an alternative rack member 82 which can be used in the present invention.
  • the mounting seat 80 includes a single mounting hole 81 into which the shaft 27 can be inserted for moving the rack member in two directions.
  • the rack member 82 is received removably in the recess 181 of the base member 14c so that the rack member 82 can be detached from the base member 14c to change its position. Since a single hole is provided on the mounting seat 80, the length of the rack member 82 must be greater than that of the rack member 18.
  • the teeth of the rack members 18 and 82 are arranged such that their positions must be changed to be able to engage with the teeth 29 and 30 of the pawl arm 28 so as to move the rack members 18 and 82 in two directions, i.e. to a molding position and to a released position
  • the teeth of the rack member or the pawl used in the present invention may be arranged such that they are operative without changing the position of the rack member.
  • the form assembly according to the invention can be operated manually to move to a molding position or a position released from the molded concrete structure, and that the simultaneous operations of the two operating means of each form board 12 or 13 can move the form board 12 or 13 relative to the adjacent spacer boards 14.

Landscapes

  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Mechanical Engineering (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Chemical & Material Sciences (AREA)
  • Ceramic Engineering (AREA)
  • Moulds, Cores, Or Mandrels (AREA)
  • Forms Removed On Construction Sites Or Auxiliary Members Thereof (AREA)
  • Moulds For Moulding Plastics Or The Like (AREA)
EP89302076A 1988-03-02 1989-03-02 Molding device with hand operable mold releasing mechanism Expired - Lifetime EP0331484B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT89302076T ATE85386T1 (de) 1988-03-02 1989-03-02 Schalung mit handbedientem entschalungsmechanism.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP1988028582U JPH071435Y2 (ja) 1988-03-02 1988-03-02 型わくの力伝達機構
JP28582/88 1988-03-02

Publications (3)

Publication Number Publication Date
EP0331484A2 EP0331484A2 (en) 1989-09-06
EP0331484A3 EP0331484A3 (en) 1990-05-30
EP0331484B1 true EP0331484B1 (en) 1993-02-03

Family

ID=12252595

Family Applications (1)

Application Number Title Priority Date Filing Date
EP89302076A Expired - Lifetime EP0331484B1 (en) 1988-03-02 1989-03-02 Molding device with hand operable mold releasing mechanism

Country Status (5)

Country Link
EP (1) EP0331484B1 (zh)
JP (1) JPH071435Y2 (zh)
CN (1) CN1015564B (zh)
AT (1) ATE85386T1 (zh)
DE (1) DE68904661T2 (zh)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103434017B (zh) * 2013-08-05 2015-09-16 兖州嘉禾建筑设备有限公司 柔性状态下的四轴联动脱模装置
CN105239772B (zh) * 2015-09-01 2017-09-22 中民筑友有限公司 调节机构、内筒模以及电梯井模板装置
CN107813409B (zh) * 2017-10-27 2021-01-29 李宜君 一种建筑墙体成型模具的内模及其缩模方法
CN112538963B (zh) * 2020-12-08 2022-04-19 天津九为新材料有限公司 一种用于建筑工程施工可拆卸、易清理的建筑模板

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2031815A (en) * 1935-09-05 1936-02-25 Duplex Tool Co Lifting jack
US3481581A (en) * 1967-08-24 1969-12-02 Joe N Sunseri Lifting jack
FR2410110A1 (fr) * 1977-11-29 1979-06-22 Equip Modernes Indls Procede et materiel de realisation du mur perimetrique d'une enceinte en beton
US4570896A (en) * 1984-02-06 1986-02-18 Strickland Systems, Inc. Slide action inside corner form
JPS61237762A (ja) * 1984-12-13 1986-10-23 李　淵河 型わくの組立、解体装置
US4614326A (en) * 1985-01-09 1986-09-30 Strickland Systems, Inc. Concrete mold core assembly
IN166742B (zh) * 1985-11-26 1990-07-14 Yuan Ho Lee

Also Published As

Publication number Publication date
JPH071435Y2 (ja) 1995-01-18
ATE85386T1 (de) 1993-02-15
JPH01130448U (zh) 1989-09-05
DE68904661D1 (de) 1993-03-18
EP0331484A3 (en) 1990-05-30
DE68904661T2 (de) 1993-08-12
CN1015564B (zh) 1992-02-19
EP0331484A2 (en) 1989-09-06
CN1036243A (zh) 1989-10-11

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