US3919817A - Floor jack anchoring arrangement for garage lifts - Google Patents

Floor jack anchoring arrangement for garage lifts Download PDF

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Publication number
US3919817A
US3919817A US483349A US48334974A US3919817A US 3919817 A US3919817 A US 3919817A US 483349 A US483349 A US 483349A US 48334974 A US48334974 A US 48334974A US 3919817 A US3919817 A US 3919817A
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US
United States
Prior art keywords
thread
opening
jack
floor
anchor
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
US483349A
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English (en)
Inventor
Karl Plotner
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
Priority claimed from DE19732332658 external-priority patent/DE2332658C3/de
Application filed by Individual filed Critical Individual
Application granted granted Critical
Publication of US3919817A publication Critical patent/US3919817A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • 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
    • E04G21/14—Conveying or assembling building elements
    • E04G21/16—Tools or apparatus
    • E04G21/161—Handling units comprising at least considerable parts of two sides of a room or like enclosed space
    • 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
    • E04G21/14—Conveying or assembling building elements
    • E04G21/142—Means in or on the elements for connecting same to handling apparatus

Definitions

  • each jack cylinder (1 l) is coarsely threaded cylindrical member (22) having a smooth guide surface (19) above the threads 18) and an outwardly flaring conical surface (21) above the smooth surface.
  • An anchor plate 14) is embedded in a hole (12) in the concrete floor (13) contoured to mate with and receive the cylindrical member.
  • the anchor plate has a central hole 15) surrounded by an offset split ring (16) to define a single tum thread.
  • This invention relates to an apparatus for raising and lowering roomsized building unit's,. particularly prefab ricated garages made'from reinforced concrete, with the aid of jacks anchored inbpenings in the floor of the building by means of fittings which surround the openingsandwhich are concreted into the. floor, by turning the ja'eks: a
  • an important feature of the invention is the construction of the lost fitting fixed in the garage floor which in this case is constructed as a single anchor plate with a hole surrounding the jack.
  • the ring in the hole has a screw thread-like configuration and engages in an outer coarse pitch thread on the jack.
  • the anchor plate is constructed in a single operation by stamping and shaping the ring in the hole to form a screw thread.
  • in addition to the anchoring in the lower area of the garage conical extension which engages in a corresponding counter-surface of the garage floor, particularly in the opening thereof.
  • FIG. 'I shows-a lifting apparatus according to the invention in the mounted state with part .of agarage in vertical section,-
  • FIGJ-Z shows detailiof the apparatusof FIG. I in side View
  • FIG. 3 shows the fitting for mounting in the garage, floor, as'as detail inside view
  • r V Y
  • jacks I0 comprisinga hydrauliecylinder ll 'anda downwardly extendable piston lOa-movable therein are used for raising and lowering prefabricated garages of reinforced concrete.
  • Thefloor 13 of the garage is provided with four openlugs 12 in the corners thereof.
  • the jacks T0 are mounted and anchored in the openings 12, so that the garage forces are transferred to the jacks 10.
  • jack 10 is fitted solely inthe floor 13 of the garage.
  • r I Q To this end a fitting in the form of an anchor plate 14 is. concreted into the floor 13.
  • This anchor. plate .-l4, is locatedjn the lower cross-sectional area of floor 13 It isprovided with a preferablyv central hole l5, whjch when -"the anchor plate 14 is mounted surroundso pen ing .12.
  • a circular ring 16..of anchor plate l4.sur r oun d ing hole 15 passes laterally into opening 12.
  • ring 16 is constructed as a screw thread.
  • anchor plate 14 has a radial slot 17 extending over the width of the shaped ring 16.,On both sides of radial slot 17 1ringI6 is bent to opposite sides in such a way that screw thread is formed on both sides of the central plate of anchor plate 14.
  • the anchor plate 14 is preferably made in one operation bby simultaneous stamping and shaping.
  • the lower end of jack 10 is provided externally with shaped parts permitting form-locking with anchor plate 14 by turning jack 10.
  • a coarse pitch thread 18 in which engages the screw thread-like ring 16 of anchor plate 14 by turning jack 10 in opening 12.
  • the coarse pitch thread 18 is rela tively short, consisting of somewhat less than two turns. If the jack 10 is turned by at least 360 it is sufficient to ensure a stable connection between thread 18 and anchor plate 14. In this case the thread is a trapezoidal thread.
  • jack 10 is constructed with a cylindrical guide 19 which fits into the cylindrical opening 12 of floor 13. Guide 19 and the relevant portion of opening 12 insure the lateral guidance of jack 10.
  • jack 10 is also provided with a cone 20 which fits into a conical extension 21 of opening 12 in the area of the latter towards the inside of the garage.
  • the conical extension 21 facilitates the insertion of the lower end of jack- 10 into opening 12.
  • cone 20 conical extension 21, thread 18 and anchor plate 14 are so matched to one another that on inserting jack l into anchor plate 14 the outer surface of the cone 20 is pressed against the inner surface of conical extension 21. Therefore the lower end of the jack rests under a certain tension in opening 12.
  • Thread 18, guide 19 and cone 20 form part of an anchoring member 22 detachably arranged on jack as a separate member, particularly by means of thread 23.
  • the problem of manufacturing the opening 12 with concreted-in anchor plate 14 is also solved in a special manner according in the invention.
  • a core member 24 of elastic material, particularly plastic which before concreting is placed in a formwork 25.
  • Core member 24 is detachably anchored on a base portion 27 of the formwork with a centrally inserted tie bolt 26 or the like.
  • Core member 24 is constructed in the same way as the anchor member 22, i.e. it is also provided with outer thread l8, onto which is screwed anchor plate l4 before assembling core member 24 in formworks 25.
  • Core member 24 with the mounted anchor plate 14 is then inserted and concreted into formwork 25. After the concrete has set core member 24 is removed from the floor l3 of the garage.
  • Anchor plate 14 is left behind at the desired point in the floor 13. In the lower area an appropriate internal thread is embedded in the concrete.
  • each anchor plate being substantially planar and having an edge projecting into its associated opening.
  • each anchor member having a coarse pitch thread configured to fit into and mate with each opening and to engage a projecting anchor plate by turning the jack.
  • anchoring member comprises a thread detachably mounted on the lower end of the jack; a cylindrical guide disposed above said course pitch thread and a conical portion above the cylindrical guide.

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)
  • Conveying And Assembling Of Building Elements In Situ (AREA)
US483349A 1973-06-27 1974-06-26 Floor jack anchoring arrangement for garage lifts Expired - Lifetime US3919817A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19732332658 DE2332658C3 (de) 1973-06-27 Einrichtung zum Heben und Senken von raumgroßen Bauwerkseinheiten sowie Verfahren zum Einbau der bei dieser Einrichtung verwendeten Verankerungsplatte

Publications (1)

Publication Number Publication Date
US3919817A true US3919817A (en) 1975-11-18

Family

ID=5885222

Family Applications (1)

Application Number Title Priority Date Filing Date
US483349A Expired - Lifetime US3919817A (en) 1973-06-27 1974-06-26 Floor jack anchoring arrangement for garage lifts

Country Status (9)

Country Link
US (1) US3919817A (en:Method)
BE (1) BE816874A (en:Method)
BR (1) BR7405245D0 (en:Method)
CH (1) CH570342A5 (en:Method)
DD (1) DD112110A5 (en:Method)
DK (1) DK320774A (en:Method)
FI (1) FI194774A7 (en:Method)
FR (1) FR2235249B1 (en:Method)
ZA (1) ZA744156B (en:Method)

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3529387A (en) * 1967-04-25 1970-09-22 Gottlieb Fritz Huber Apparatus for constructing buildings having several storeys
US3640036A (en) * 1968-03-22 1972-02-08 Yosh Nakazawa & Associates Inc Architectural system of interior modular construction

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3529387A (en) * 1967-04-25 1970-09-22 Gottlieb Fritz Huber Apparatus for constructing buildings having several storeys
US3640036A (en) * 1968-03-22 1972-02-08 Yosh Nakazawa & Associates Inc Architectural system of interior modular construction

Also Published As

Publication number Publication date
DE2332658A1 (de) 1975-01-02
ZA744156B (en) 1975-10-29
FR2235249A1 (en:Method) 1975-01-24
CH570342A5 (en:Method) 1975-12-15
BR7405245D0 (pt) 1975-09-30
DD112110A5 (en:Method) 1975-03-20
FR2235249B1 (en:Method) 1981-01-30
FI194774A7 (en:Method) 1974-12-28
BE816874A (fr) 1974-10-16
DK320774A (en:Method) 1975-02-10
DE2332658B2 (de) 1976-04-29

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