US3827840A - Mobile concrete ceiling mold platform - Google Patents

Mobile concrete ceiling mold platform Download PDF

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Publication number
US3827840A
US3827840A US00224480A US22448072A US3827840A US 3827840 A US3827840 A US 3827840A US 00224480 A US00224480 A US 00224480A US 22448072 A US22448072 A US 22448072A US 3827840 A US3827840 A US 3827840A
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United States
Prior art keywords
fluid
dolly
frame
pressure fluid
platform
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Expired - Lifetime
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US00224480A
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English (en)
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L Kistler
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Individual
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Individual
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    • 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
    • E04G19/00—Auxiliary treatment of forms, e.g. dismantling; Cleaning devices
    • E04G19/003—Arrangements for stabilising the forms or for moving the forms from one place to another

Definitions

  • ABSTRACT A selectively self-propelled cart has mounted thereon an extendable platform which can be extended, for example by a scissor arrangement, to ceiling height to form a support mold for concrete.
  • the cart has a separable drive unit, and both the extension mechanism for the scissors as well as the drive unit are operated by a compressed fluid, each with its separate operating motor or cylinder.
  • the compressed fluid such as oil is obtained from a pump driven by a self-contained prime mover such as a gasoline engine or a battery supplied electric motor, the prime mover and the pump, or compressor for the operating fluid being removable, and selectively connectable separable either the extension mechanism for the scissors or the sepable drive unit for the cart carrying the mold frame.
  • a self-contained prime mover such as a gasoline engine or a battery supplied electric motor
  • the prime mover and the pump, or compressor for the operating fluid being removable, and selectively connectable separable either the extension mechanism for the scissors or the sepable drive unit for the cart carrying the mold frame.
  • the present invention relates to a platform to form a lower mold for the ceiling of poured concrete structures which is mobile, and in which the mold platform itself can be extended or retracted against a cart frame on which the wheels to move the apparatus are located.
  • a wheeled frame is provided, to which a drive unit, such as a drive dolley is attached; preferably, the drive dolley is separate from the cart or frame.
  • a hydraulic or pneumatic power source common to both the wheeled drive of the dolley, as well as to an erection cylinder, or other mechanism for the platform is provided, preferably mounted, separably, on the cart or on the dolley.
  • the power source of compressed fluid such as compressed air or oil under pressure is provided by a compressor driven by a prime mover such as an internal combustion engine, or an electric motor, supplied from batteries.
  • the prime mover and its energy source are separably mounted on either the cart or frame, or on the drive dolley. If mounted on the drive dolley, it can be left there and the drive dolley can be used to place any number of carts with the ceiling mold platforms in position, and then provide the necessary pressure fluid to extend the platform to the desired height. Once placed, the platform can readily be locked in place, either by sealing an incompressible fluid in a given space, or by mechanical arrangements.
  • FIG. 1 is a schematic side view of the apparatus in which the mold platform, when in collapsed position, is shown in full lines, and in chain-dotted lines when in extended position;
  • FIG. 2 is a top view, with the platform removed, of the cart and frame and the drive dolley;
  • FIG. 3 is a fragmentary view of the drive dolley with the source of power mounted thereon, the remainder being similar to the embodiment of FIG. 2.
  • a cart, generally designated GW has a lifting device HS, in the form of interlocking scissors, which move a mold platform ST forming a support for a ceiling platform mold for pouring of concrete thereon.
  • a hydraulic cylinder Z is swingably secured to frame R of the cart GW and, when subjected to hydraulic pressure fluid, stretches the scissor extension arrangement as seen in FIG. ll, from the full line position to the chaindotted position.
  • Such scissor arrangements are known in the art, and need not be described in detail.
  • One, or both of the base ends of the base scissor links are slidably located on the cart GW.
  • Operative power is provided by a common hydraulic pressure source AA, which provides hydraulic pressure both for a hydraulic motor FM to move the cart GW, as well as for the hydraulic cylinder Z lifting, or permitting depression of the lifting arrangement HS.
  • the cart GW can be moved by releasably securing thereto a drive unit, such as a dolley AF, to which the drive motor M is secured.
  • the power source AA is likewise removably and releasably mounted on the cart GW.
  • the drive dolley AF can swing about a horizontal axis AH with respect to the cart GW and, by removing a bolt, for example, is releasably connected therewith.
  • a power is provided by a common hydraulic pressure source AA, which provides hydraulic pressure both for a hydraulic motor FM to move the cart GW, as well as for the hydraulic cylinder Z lifting, or permitting depression of the lifting arrangement HS.
  • the cart GW can be moved by releasably securing thereto
  • the forward part of the dolley Tf can swing about a vertical axis Av.
  • the motor FM is controlled by means of a switch S, and a forward-backward control slider St, the control units being preferably arranged at a forward extension, or guide post D of the dolley AF.
  • the hydraulic power source AA includes a prime mover Ma, which may be an internal combustion engine with attached fuel tank, or an electric motor, supplied from batteries.
  • the prime mover drives a hydraulic oil pump, preferably a gear pump P, which is connected by means of a suction line SL with a supply tank OB for pressure fluid (see FIG. 2).
  • the oil pump P is connected-over pressure line DL with the hydraulic cylinder Z of the lifting device HS.
  • Another hydraulic pressure line DL connects to the hydraulic motor FM on the dolly.
  • Return of hydraulic fluid is over a return line RL connecting to the tank OB. Since the hydraulic pressure supply of the power source AA should be removable from the cart or, if mounted on the dolley AF, should be separable from the cart GW, quick-release couplings are interposed at suitable points in the pressure and return lines DL, RL; some of these lines, preferably, are flexible. These couplings, and the flexible nature of the lines have not been shown in the drawings since they are well known and the illustration is thereby simplified.
  • FIG. 3 illustrates location of the hydraulic pressure source AA on the dolley AF.
  • a control switch C is provided to selectively connect the output of pump P either to the pressure line DL connected with the hydraulic cylinder Z or with the pressure line DL connecting with the drive motor FM; or isolating the pressure lines from the pump.
  • the drive wheel AL has a coaxial gear 1 secured thereto, which is engaged by a chain 2, connected to a pinion 3 on the output shaft of drive motor FM. Upon rotation of motor FM, power is transmitted to wheel AL to move the dolley, and with it the cart GW.
  • the cart and the dolley containing the drive wheel AL are additionally interconnected by means of a spring 4 (FIG. 1) which tends to swing the rear portion TH of the dolley AF in counter-clockwise direction about the horizontal axis Ah, to tend to press the drive wheel AL towards the support surface, to increase friction of the drive wheel AL over the running surface thereof.
  • drive wheel AL is a pneumatic tire.
  • the horizontal axis Ah for the dolley AF essentially consists of a pin or bolt, rotatably journalled in the rear portion Th of the drive dolley AF.
  • the prime mover Ma for the hydraulic power source AA is an internal combustion engine, then an ordinary gasoline engine, preferably a two-cycle engine, or a Diesel engine is suitable. If the prime mover is an electric motor, batteries can be used, and a battery charging controller can be incorporated therewith, so that in motion, the cart-dolley combination is independent from the power lines, but batteries can readily be re-charged when the cart GW is stationary, during hardening of concrete, for example, and even when the hydraulic cylinder Z is being supplied with pressure fluid during raising of platform ST.
  • the mobile mold and platform apparatus has the advantage that the motor drive of the dolley permits high mobility of the entire concrete mold.
  • the power source, or on the cart, or on the dolley can be readily de-mounted from the dolley, so that the investment costs of the mold apparatus, for a large casting surface can be reduced since the various carts GW with the mold platforms ST need not, each, have their own drive assemblies secured thereto.
  • the long rest period, during which use of a drive motor, and changes in supply of pressure fluid are not required, would make the fixed assembly of drive motors and prime movers to each cart rather uneconomical.
  • the hydraulic power source AA can supply hydraulic pressure fluid for the cylinder Z which, after extension to the chain-dotted position can be separated off from further pressure supply, thus maintaining the extended position even under load.
  • the prime mover, and the hydraulic pressure supply pump are then no longer needed and the entire power source can be moved, separately or together with the dolley AF to supply pressure fluid for other carts GW, to extend their hydraulic cylinders and likewise to drive the motors FM of the dollys for the cart.
  • the versatility of drive by means of pressure fluid apparatus, preferably hydraulic apparatus greatly increases the economic utility of even a few carts GW. If a compressible fluid is used, rather than a non-compressible fluid such as oil then, after the platform ST has been extended, the scissors can be locked in place mechanically, as well known in the art.
  • Utilizing a pressure fluid motor and preferably hydraulic motor for the dolley AF has the additional advantage that the drive wheel, upon blocking of further oil supply and drain, is automatically blocked, so that no brake need be used, and still movement, on flat or inclined surfaces, can be completely controlled by the oil and from motor FM. No gearing or clutches need be used with a hydraulic drive motor, since starting torques can be controlled by oil flow. Permanent connection to outside power sources, such as electric lines,
  • a hydraulic pressure source is preferred, pneumatic pressure can be used, the drive motor then being a compressed air motor, and the return line RL being replaced by a controlled exhaust port (control being desirable to avoid the necessity of a separate brake).
  • the power source AA including the motor, pump, and pressure fluid supply (such as tank OB, or a compressed air tank) can be connected, removably, either with the cart GW (FIGS. 1 and 2) or on the dolley AF (FIG. 3).
  • Mobile concrete ceiling mold apparatus comprismg a wheeled frame (R; GW);
  • HS vertically extendable means
  • AF a separable, wheeled drive dolly
  • R a wheeled frame
  • GW a wheeled frame
  • AA single pressure fluid power source
  • Ma prime mover
  • P fluid compressor pump
  • a pressure fluid actuated drive motor directly connected to at least one of the wheels of the drive dolly, and fluid connection lines connecting the fluid compressor pump (P) to the pressure fluid drive motor (FM) to move the driven dolly with, or without the frame under power derived from the pressure fluid;
  • control means selectively establishing fluid communication between the power source (AA), the fluid actuated means (Z), and the drive motor (FM) to provide motive power for the dolly (R, GW) to move the dolly with, or without the frame and, selectively, provide pressure fluid to the fluid actuated means (Z) to extend the position of the platform.
  • Apparatus according to claim 1 including separable coupling means having a horizontal swing axis interconnecting the dolly (AF) and the frame (R, GW).
  • Apparatus according to claim 1 including a vertical axle (Av) interconnecting the dolly and the frame.

Landscapes

  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Mechanical Engineering (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Forms Removed On Construction Sites Or Auxiliary Members Thereof (AREA)
  • Motorcycle And Bicycle Frame (AREA)
  • On-Site Construction Work That Accompanies The Preparation And Application Of Concrete (AREA)
US00224480A 1971-02-12 1972-02-08 Mobile concrete ceiling mold platform Expired - Lifetime US3827840A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH207871A CH516063A (de) 1971-02-12 1971-02-12 Fahrbares Schalgerät zum Ein- und Ausschalen von Schalungen für Betondecken

Publications (1)

Publication Number Publication Date
US3827840A true US3827840A (en) 1974-08-06

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ID=4225377

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US00224480A Expired - Lifetime US3827840A (en) 1971-02-12 1972-02-08 Mobile concrete ceiling mold platform

Country Status (7)

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US (1) US3827840A (enExample)
CH (1) CH516063A (enExample)
DD (1) DD95450A5 (enExample)
DE (2) DE7202384U (enExample)
FR (1) FR2126717A5 (enExample)
GB (1) GB1374163A (enExample)
IT (1) IT947494B (enExample)

Cited By (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3920096A (en) * 1974-07-01 1975-11-18 Upright Inc Vertical hydraulic ram system for scissors assembly scaffold
US4666388A (en) * 1984-01-31 1987-05-19 Adema Maskin Ab Collapsible form and device for removing form from cast concrete
US4873738A (en) * 1988-09-29 1989-10-17 Cfc Fabrication Corporation Apparatus for stripping concrete forms from bridge structures
US5273415A (en) * 1992-02-13 1993-12-28 Jackson George W Flying form apparatus for use in construction
US5616349A (en) * 1994-01-20 1997-04-01 Sasaki; Mitsuo Movable slab form unit
EP1293418A3 (en) * 1999-05-10 2003-04-02 Actuant Corporation Vehicle with a tiltable cab
EP1281815A3 (en) * 2001-08-03 2003-08-27 Abbey Pynford Holdings plc Foundation raft
WO2003021056A3 (en) * 2001-09-04 2003-11-06 Dani Shlezinger Construction system and method for its use
CN102786011A (zh) * 2012-08-14 2012-11-21 江苏东迈重工机械有限公司 一种用于剪叉式作业平台的电动升降装置
CN102910557A (zh) * 2012-10-17 2013-02-06 杭州中迈搬运设备有限公司 一种气液压一体化高承重升降平台
CN109437066A (zh) * 2018-11-28 2019-03-08 湖州埭溪振华工贸有限公司 电动升降车
CN111021719A (zh) * 2020-01-06 2020-04-17 黄河水利职业技术学院 海绵城市发泡砼后浇楼盖成型系统及工法
CN111058609A (zh) * 2019-12-30 2020-04-24 上海建工集团股份有限公司 一种施工与防护一体化便携式操作平台及方法
US20220396007A1 (en) * 2019-10-31 2022-12-15 Umdasch Group Newcon Gmbh Formwork device
US20220410953A1 (en) * 2019-11-04 2022-12-29 Locher, Piper & Partner Gmbh Foldable devices for transporting loads
US11554943B2 (en) 2018-08-07 2023-01-17 Milwaukee Electric Tool Corporation Material transport cart

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SE449352B (sv) * 1984-11-28 1987-04-27 Bertil Persson Lyftanordning, foretredesvis en fatvendare, vilken foretredesvis er lyft- och forflyttbar med hjelp av en lyftvagn
CN105398550A (zh) * 2015-12-21 2016-03-16 浙江海洋学院 一种船用控制台
CN111811371B (zh) * 2020-07-23 2021-10-29 中国地质大学（北京） 一种湖底淤泥厚度探测装置
CN111997335A (zh) * 2020-08-31 2020-11-27 孟远航 一种建筑外墙施工平台的安全防护装置

Citations (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1313355A (en) * 1919-08-19 Ptanoqraph co
US1460165A (en) * 1920-04-13 1923-06-26 Blawknox Company Form for tunnels and culverts
US1596868A (en) * 1920-04-13 1926-08-24 Blaw Knox Co Floor form
US1621538A (en) * 1926-06-02 1927-03-22 Hans E Heller Jumbo for tunnel forms
US2486801A (en) * 1946-05-20 1949-11-01 Blaw Knox Co Carrier for tunnel forms
US2593465A (en) * 1946-05-17 1952-04-22 Letourneau Inc Mobile form and transport for cast structures
US2671697A (en) * 1950-02-24 1954-03-09 Universal Mfg Co Portable shoring
US2945551A (en) * 1957-08-05 1960-07-19 Mark H Annin Portable platform elevating device
US2954136A (en) * 1957-05-21 1960-09-27 American Pipe & Constr Co Pipe-handling vehicle
US3193902A (en) * 1963-02-25 1965-07-13 Alwyn H Cheney Vehicle supported concrete moulding machine
US3234620A (en) * 1962-08-23 1966-02-15 Thomas W Short Hyperbolic paraboloid roof construction
US3320646A (en) * 1966-07-05 1967-05-23 Arnold H Wilkins Portable form for monolithic concrete roof
US3665821A (en) * 1970-08-17 1972-05-30 Medusa Portland Cement Co Continuous curb-forming machine

Patent Citations (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1313355A (en) * 1919-08-19 Ptanoqraph co
US1460165A (en) * 1920-04-13 1923-06-26 Blawknox Company Form for tunnels and culverts
US1596868A (en) * 1920-04-13 1926-08-24 Blaw Knox Co Floor form
US1621538A (en) * 1926-06-02 1927-03-22 Hans E Heller Jumbo for tunnel forms
US2593465A (en) * 1946-05-17 1952-04-22 Letourneau Inc Mobile form and transport for cast structures
US2486801A (en) * 1946-05-20 1949-11-01 Blaw Knox Co Carrier for tunnel forms
US2671697A (en) * 1950-02-24 1954-03-09 Universal Mfg Co Portable shoring
US2954136A (en) * 1957-05-21 1960-09-27 American Pipe & Constr Co Pipe-handling vehicle
US2945551A (en) * 1957-08-05 1960-07-19 Mark H Annin Portable platform elevating device
US3234620A (en) * 1962-08-23 1966-02-15 Thomas W Short Hyperbolic paraboloid roof construction
US3193902A (en) * 1963-02-25 1965-07-13 Alwyn H Cheney Vehicle supported concrete moulding machine
US3320646A (en) * 1966-07-05 1967-05-23 Arnold H Wilkins Portable form for monolithic concrete roof
US3665821A (en) * 1970-08-17 1972-05-30 Medusa Portland Cement Co Continuous curb-forming machine

Cited By (19)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3920096A (en) * 1974-07-01 1975-11-18 Upright Inc Vertical hydraulic ram system for scissors assembly scaffold
US4666388A (en) * 1984-01-31 1987-05-19 Adema Maskin Ab Collapsible form and device for removing form from cast concrete
US4873738A (en) * 1988-09-29 1989-10-17 Cfc Fabrication Corporation Apparatus for stripping concrete forms from bridge structures
US5273415A (en) * 1992-02-13 1993-12-28 Jackson George W Flying form apparatus for use in construction
US5616349A (en) * 1994-01-20 1997-04-01 Sasaki; Mitsuo Movable slab form unit
EP1293418A3 (en) * 1999-05-10 2003-04-02 Actuant Corporation Vehicle with a tiltable cab
EP1281815A3 (en) * 2001-08-03 2003-08-27 Abbey Pynford Holdings plc Foundation raft
WO2003021056A3 (en) * 2001-09-04 2003-11-06 Dani Shlezinger Construction system and method for its use
CN102786011A (zh) * 2012-08-14 2012-11-21 江苏东迈重工机械有限公司 一种用于剪叉式作业平台的电动升降装置
CN102910557A (zh) * 2012-10-17 2013-02-06 杭州中迈搬运设备有限公司 一种气液压一体化高承重升降平台
CN102910557B (zh) * 2012-10-17 2015-07-15 杭州中迈搬运设备有限公司 一种气液压一体化高承重升降平台
US11554943B2 (en) 2018-08-07 2023-01-17 Milwaukee Electric Tool Corporation Material transport cart
US11952249B2 (en) 2018-08-07 2024-04-09 Milwaukee Electric Tool Corporation Material transport cart
CN109437066A (zh) * 2018-11-28 2019-03-08 湖州埭溪振华工贸有限公司 电动升降车
US20220396007A1 (en) * 2019-10-31 2022-12-15 Umdasch Group Newcon Gmbh Formwork device
US12358182B2 (en) * 2019-10-31 2025-07-15 Umdasch Group Newcon Gmbh Formwork device
US20220410953A1 (en) * 2019-11-04 2022-12-29 Locher, Piper & Partner Gmbh Foldable devices for transporting loads
CN111058609A (zh) * 2019-12-30 2020-04-24 上海建工集团股份有限公司 一种施工与防护一体化便携式操作平台及方法
CN111021719A (zh) * 2020-01-06 2020-04-17 黄河水利职业技术学院 海绵城市发泡砼后浇楼盖成型系统及工法

Also Published As

Publication number Publication date
DD95450A5 (enExample) 1973-02-05
GB1374163A (en) 1974-11-20
DE7202384U (de) 1972-04-27
FR2126717A5 (enExample) 1972-10-06
IT947494B (it) 1973-05-21
DE2202925A1 (de) 1972-08-24
CH516063A (de) 1971-11-30

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