CA2047850A1 - Arrangement for moving and positioning finished concrete parts - Google Patents
Arrangement for moving and positioning finished concrete partsInfo
- Publication number
- CA2047850A1 CA2047850A1 CA002047850A CA2047850A CA2047850A1 CA 2047850 A1 CA2047850 A1 CA 2047850A1 CA 002047850 A CA002047850 A CA 002047850A CA 2047850 A CA2047850 A CA 2047850A CA 2047850 A1 CA2047850 A1 CA 2047850A1
- Authority
- CA
- Canada
- Prior art keywords
- arrangement according
- frame
- skeleton frame
- frame member
- skeleton
- 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.)
- Abandoned
Links
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
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
- B66C1/00—Load-engaging elements or devices attached to lifting or lowering gear of cranes or adapted for connection therewith for transmitting lifting forces to articles or groups of articles
- B66C1/10—Load-engaging elements or devices attached to lifting or lowering gear of cranes or adapted for connection therewith for transmitting lifting forces to articles or groups of articles by mechanical means
- B66C1/42—Gripping members engaging only the external or internal surfaces of the articles
- B66C1/44—Gripping members engaging only the external or internal surfaces of the articles and applying frictional forces
- B66C1/54—Internally-expanding grippers for handling hollow articles
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Mechanical Engineering (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Load-Engaging Elements For Cranes (AREA)
- Conveying And Assembling Of Building Elements In Situ (AREA)
- Fencing (AREA)
- Forms Removed On Construction Sites Or Auxiliary Members Thereof (AREA)
- Indexing, Searching, Synchronizing, And The Amount Of Synchronization Travel Of Record Carriers (AREA)
- Movable Scaffolding (AREA)
- Portable Nailing Machines And Staplers (AREA)
- On-Site Construction Work That Accompanies The Preparation And Application Of Concrete (AREA)
Abstract
ABSTRACT
The invention deals with an arrangement for moving and positioning finished concrete parts designed as frame members, stacked upon each other and forming the outer walls of a space, for instance a burial chamber. The invention intends to solve the task of lowering the costs arising in the course of installation of such finished concrete parts above all by reducing the personnel required, however also by avoiding the attachment of entirely or partially lost coupling means, also of increasing the safety when performing these measures and to do away with the use of human labor.
This is achieved in that the arrangement comprises a skeleton frame lowerable into the frame member, at the bottom side of which skeleton frame sit at least two pivot levers with a pivot drive with grips below the frame member, with the pivot drive being operatable by a hoisting mechanism which is detachably coupled with the arrangement.
The invention deals with an arrangement for moving and positioning finished concrete parts designed as frame members, stacked upon each other and forming the outer walls of a space, for instance a burial chamber. The invention intends to solve the task of lowering the costs arising in the course of installation of such finished concrete parts above all by reducing the personnel required, however also by avoiding the attachment of entirely or partially lost coupling means, also of increasing the safety when performing these measures and to do away with the use of human labor.
This is achieved in that the arrangement comprises a skeleton frame lowerable into the frame member, at the bottom side of which skeleton frame sit at least two pivot levers with a pivot drive with grips below the frame member, with the pivot drive being operatable by a hoisting mechanism which is detachably coupled with the arrangement.
Description
L 7 ~ 5 0 ~RRANGEMENT FOR MOVING AND POSITIONING
~FINISIIED COMCRETE PARTS
The invention deals with an arranyement for moving and positioning finished concrete parts, designed as frame members, which are stacked upon each other and form the outer wall of a chamber, for instance a burial chamber.
In the following the state of the art will be explained at the example of rectangular concrete finished parts as they have become known from the DE-PS 35 37 367 of the same applicants as frame-like wall parts of a burial chamber. It is self-evident that the arrangement in the invention is not however limited solely to such an application. It can equally well be used for moving and positioning round frame !
members as for instance shaft rings; it is also suitable for a frame member with irregular peripheral shapes.
When installing the burial chamber in accordance with DE-Ps 35 37 367, the frame-like wall parts can be moved and placed upon each other in three different ways:
` ;'i J' -~ 1. Self-gripping tongs picking up the wall'portions at the upper edges are used in connection with a hoist. Herein there occurs a noticeable side crabbin~ which causes undesirable changes in the shape of the wall part. Another - disadvantage that additional width of the pit receiving the ~ O ~ 7 ~ 5 ~
burial chamber is required, because of the excess sideways projection of the self-gripping tongs, which necessitate addtional earth removal and backfill work.
~FINISIIED COMCRETE PARTS
The invention deals with an arranyement for moving and positioning finished concrete parts, designed as frame members, which are stacked upon each other and form the outer wall of a chamber, for instance a burial chamber.
In the following the state of the art will be explained at the example of rectangular concrete finished parts as they have become known from the DE-PS 35 37 367 of the same applicants as frame-like wall parts of a burial chamber. It is self-evident that the arrangement in the invention is not however limited solely to such an application. It can equally well be used for moving and positioning round frame !
members as for instance shaft rings; it is also suitable for a frame member with irregular peripheral shapes.
When installing the burial chamber in accordance with DE-Ps 35 37 367, the frame-like wall parts can be moved and placed upon each other in three different ways:
` ;'i J' -~ 1. Self-gripping tongs picking up the wall'portions at the upper edges are used in connection with a hoist. Herein there occurs a noticeable side crabbin~ which causes undesirable changes in the shape of the wall part. Another - disadvantage that additional width of the pit receiving the ~ O ~ 7 ~ 5 ~
burial chamber is required, because of the excess sideways projection of the self-gripping tongs, which necessitate addtional earth removal and backfill work.
2. Four metallic thread carriers projecting from the upper edge of the wall part are cast into said upper edge, upon which a lug part for receiving cables is threaded, at which lug part the hoist engages. ~-Ierein also a sideways crabbing arises with the previously described unfavorable effects. Other difficulties result from the circumstance that the lug parts have to be manually screwed on and off, which can scarcely be accomplished because of the frequently dirty thread.
3. Plastics loops protruding inwardly are cast into the region of the upper edge of the wall portion destined for receiving cables at which the hoist engages. The costs of these plastics loops are indeed lower than the metallic thread carriers, however they involve the danger of tearing off and there is the necessity of removing same after finishing the burial chamber in order to prevent the coffin from hanging up against them when it is lowered. Apart from this the disadvantageous sideways crabbing is also noticeable in this version.
, .
2~78~a A considerable disadvantage of all three possibili-ties consists however in that two addi-tional persons are required apart from the operator of the hoist because of the always occurring pendulum motion of the load hanginy from the hoist for its positionally correct adjustment ahove and inside the pit receiving the burial chamber. This personnel requirement however increases the installation costs quite considerably.
The invention is based upon the task of reducing the costs for removing and positioning of such finished concrete parts during their installation, above all by reducing the required personnel but also by avoiding the ins-tallation of entirely or partially lost coupling means, also by increasing the safety when performing these measures and by doing away with the use of human labor.
:.
This is achieved in the invention by including a skeleton frame lowerable into the frame member, at whose bottom sides sit at least two pivoting levers, gripping beneath the frame member, with a pivot drive, which can be actuated by means of a hoist, which is detachably coupled with the arrangement.
With this design one can entirely do away with the attachment of coupling means to the frame member. Through gripping beneath the frame member by means of the pivoting levers receiving the load sideways crabbing is àvoided.
~7~
Since the arrangement is located within the frame member, no excess width of the pit receiviny the burial chamber is necessary. Finally the use of a yrab excavator permits to have the grab enyage at the pivot drive of the arrangement, so that the arrangement is to begin with placed into the frame member by means of the excavator and is then swiveled together with said frame member above the burial place or the pit, without the load executing a pendulum motion herein, so that one can entirely refrain from using manual labor and therefore no problems involving safety can arise.
It is provided in another version of the invention, that the skeleton frame has a shape corresponding to the inside contour of the frame member, wherein said skele-ton frame expediently extends across only two regions of the inside contour of the frame member, at whlch regions it rests against its inside surface. The contour agreement assures a good fixation of the skeleton frame in the frame member, while the limitation to two contact regions of the skeleton frame facilitates its introduction into the frame member.
These advantages are additionally increased if in accordance with another feature of the invention, the two regions of the skeleton frame resting against the inside surface of the frame member are arranged 50 as to be opposite each other. In order to herein adapt the skeleton frame to the different inside dimensions of the frame member, it is ' 2 ~
advisable to make the distance between the two opposite regions of the skeleton frame adjustable.
Another advantageous feature of the invention provides that the upper edge of the contact regions of the skeleton frame include a flange located outwardly at a right angle.
This flange represents a stop, limiting the depth of lowering the skeleton frame into the frame member; as soon as the flange comes to lie upon the upwardly oriented surface of the frame member, the lowering process is terminated.
A preferred embodiment example of the arrangenlent in the invention for use with rectangular frame members is designed in such a way, that the skeleton frame also has a rectangular shape and rests with its long sides against the inside surface of the long sides of the frame member, while its short sides are held to be spaced from the short sides of the frame member, wherein spacers sit outwardly at the short sides of the skeleton frame whose free ends have a chamfer extending inwards and downwards. This design again facilitates the insertion of the skeleton frame into the frame member, since to begin with the two long sides of the skeleton frame must be located within the contour of the frame member, while one of the spacers can still rest upon one of the short sides of the frame member. By longitudinal motion of the skeleton frarne with simultaneous sliding of the spacers upon the short side of the frame member the skeleton 0~7(~
frame is displaced for as long until t~le spacer piece leaves this short side and is now located i.nside of -the contour of the frame member; herein t~le other spacer pi.ece then comes to rest against the inside surface of the opposite short side of the frame member, since according to the invention the sum of the longitudinal dimensions of the two spacer pieces and the long side of the skeleton frame is equal to the inside length of the frame member.
In order to again be able to adapt the skeleton frame in this respect to different inside dimensions of the frame member, it is provided to make the length of the spacer pieces variable.
In another advantageous refinement of the invention tabs oriented downwards fit at the skeleton frame, which form the bearing of the pivoting levers, wherein these tabs are arranged at the four corner regions if the skeleton frame if it has a rectangular construction. Herein the pivoting or swiveling lever can be designed as grippers which can snap into recesses provided at the lower edge of the frame member or as retainers pressable against the inside surface of the frame members.
2 ~
~ n outwardly direc~ed protrusion is expediently provided at the lower end of the pivot levers, whose length is dimensioned in such a way, that when tl-le skeleton frame is lowered it forms a first guidance element sliding along the inside surface of the frame member. ~ is assures, that when the skeleton frame is lowered it cannot assume an obliqu~
position in the frame member and thus result in an undesired jamming of the skeleton frame.
This measure can be improved by another feature in the invention, namely by the outwardly oriented sides of the folded-back pivot lever forming a second guide element sliding along the inside surface of the frame member. In this way a secure guidance of the skeleton frame in the frame member is assured over the entire height of the lowering travel.
In another advantageous embodiment of the invention an axis with guide rods àrranged in a scissors-like fashion and rotatably supported at the axis ends is provided with the axis penetrating the skeleton frame in its center, wherein the lower end of each control lever is connected by a guide rod with the lower end of one pivot lever. Such a drive i5 sturdy and not prone to malfunction because of its simple design.
., ~ ' 1 `-`` 2~7~0 It would seem to be particularly advantageous, to connect the upper ends of two control levers lying axially opposite each other by respectively one swi-tching bar or shifting rod, which can be actuated by the gripper or grapple of a grab excavator. In this design the two jaws of the gripper hold the switching bars within themselves, so that when hoisting, sideways swiveling or rotatiny in the gripper this motion is directly transmitted to the skeleton frame or to the skeleton frame together with the frame member supported by it, without a pendulum motion of the load being permitted to occur.
In order to enable an entry of the drive unit into the open position of the skeleton frame when the gripper of the grab excavator is opened, which is the precondi-tion for lowering the skeleton frame into the frame member, the lower ends of the control levers are connected with each other by a return spring, wherein a stop is placed into the lower gap of the control levers prèventing their falling through.
Since a grab excavator is not always available, the skeleton frame mus-t also be usable in combination with a crane. For this purpose it is provide~ in the invention to fasten an outwardly oriented suspension strap at the upper end of each control lever. Respectively one two-strand chain hanger or pendant is fastened in the two suspension straps assigned to a short side, so that when the skelèton frame is ` 7,~7~
lifted the switching bars move toward each other, meaniny that the closed position of -the skele-ton frame is achieved.
.
In order to prevent such an occurrence when inserting the skeleton frame into the frame member which is indeed only possible in the open position of the skeleton frame, it is provided in an expedient feature of the invention to retain a blocking link introducible into the upper yap of the control lever at the skeleton frame. This blocking link assures the open position of the skeleton frame if it is introduced into the upper gap of the control levers; it must be removed from the upper gap with the chain hangers slack in order to have the skeleton frame assume its closed position.
If the skeleton frame is rectangular a suspension lug protruding upward is provided at its four corner regions, wherein a two strand chain pendant is fastened by means of shackles in the two suspension lugs of each short side of the skeleton frame, which chain pendant is hung with its other end into a safety hook fastened at the grapple of the grab excavator. In this way the grab excavator and the skeleton frame are coupled witll each other even i~ the skele-ton frame is in the open position when the switching bar and the gripper or grapple of the grab excavator are out o~
engagement.
20~7~5a In further development of the thought of the invention the skeleton frame has a heiyht corresponding to the height of several frame members stac]ced upon each other, wherein it is subdivided into two planar surfaces connected with each other by vertical struts, wherein the lower planar surface is provided with the pivot levers and spacer pieces and the upper planar surface with the pivot drive and the coupling means for connection to the hoist. ~erein it would seem to be quite advanta~eous, if upright angles are fastened at the top planar surface of the skeleton frame, whose outwardly oriented horizontal leg corresponds to the flange of the contact region of the skeleton frame. In this way the entire wall structure of a burial chamber can be moved and positioned in one step.
A preferred embodiment example of the invention is shown in the drawing.
It is shown on:
Fig. 1 a front view of the skeleton frame in the open position lowered into a rectangular frame member, Fig. 2 a front view of the skeleton frame in a closed position lowered into a rectangular frame member and 2~78~
Fig. 3 a top view of the drawiny in Fig. 1.
In Fig. 3 a finished concrete part in the form of a rectangular frame member 1 wit~l the two long sides la, lb and the two short sides lc, ld is shown. ~s can be seen from Figs. 1 and 2, recesses 2 open towards the inside and towards the bottom are provided in the lower edge of the frame member 1.
A skeleton frame 3 is located within the frame member 1, which skeleton frame is also designed to be rectangular. Its two long sides 3a, 3b are shorter than the long sides la, lb of the frame member 1 and rest against their inner surfaces, while its two short sides 3c, 3d are approximately as long as the inside dimension of the short sides lc, ld of the frame member 1 as well as being arranged to be spaced from these.
This distance is bridged by respectively one spacer 4a, 4b sitting at the center at the short sides 3c, 3d, whose free end comprises a chamfer 5 extending downwards and inwards.
The long sides 3a, 3b of the skeleton frame 3 are provided with an outwardly oriented flange 6, which comes to rest upon the upwardly pointed surface of the long sides la, lb of the frame member 1 in the completely lowered position of the skeleton frame 3.
Four suspension lugs 7 are provided in the corner regions of the skeleton frame 3 on its top side Approximately opposite, the four downwardly oriented tabs 8 sit at the bo`ttom side of the s]celeton frame 3, at which tabs the pivot levers 9 are supported which comprise at their bottom end an out~lardly oriente~ protrusion 9a and an inwardly oriented bearing extension 9b.
A guide rod 10 is retained at each bearing extension 9b, by means of which the pivot lever 9 is connected to the lower end of a control lever lla or llb in an articulated manner.
The control levers lla, llb are arranged scissor-like and are supported to be rotatable on both ends of an axis 12 penetrating centrally through the skeleton frame 3. The upper ends of the two control levers lla are connected with each other by a switching rod 13a and the upper ends of the two control lever llb are connected with each other by means of a switching rod 13b and are equipped with outwardly oriented suspension straps 14a, 14b. The lower legs of the control levers lla, lib are connected by a flexural return element 15 in the form of a helical tension spring; in addition a stop 16 is provided in the gap between the lower legs of the control levers 11 and llb preventing their falling through. At the short side 3c, 3d of the skeleton frame 3 a blocking link 18 is located at 17 so as to be longitudinally displaceable or pivotable, ~hich can be introduced into the gap between the upper leys o~ the control levers lla, llb.
i_ ~
20~7~a A two-~tr~nd chain pendant o~ hal-ycr is ~esignated by the numeral 1`9, which at one end is fastened into the suspension straps l~a and l~b and with the other end at a crane hook not shown here. A two-strand chain pendant is also designated with 20, which however is hung with the one end into the retaining lug 7 of a short side 3c or 3d of the skeleton frame and with -the other end into a safety hook attached at the gripper 21 of the grab excavator.
The manipulation and mode of operation of the arrangement in the invention is as follows:
To begin with the two two-strand chain pendants 20 are fastened in the retaining strap 7 and the safety hook attached to be opposite at the upper end of the gripper 21 of the grab excavator. Then the yripper 21 with the skeleton frame 3 hanging thereon is lifted up and pivoted above the frame member 1 to be moved. By actua-ting the rotary head of the grab excavator the skeleton frame 3 is furthermore brought into a position where it is contained within the periphery of the frame member 1 and its contact regions run parallel to the corresponding regions of the frame member.
During these operations the gripper 21 is closed so that it grips the shifter rods 13a, 13b within itself and that its contact regions run parallel to the corresponding regions of the frame member 1. During these operations the gripper 21 is closed, so that it grips the switchiny rods i3a, 13b 2~7~sa within itself and therefore transfers the movements initiated by the grab èxcavator directly to the skeleton frame 3. Now the gripper 21 has opened which, because of the action of the return element 15, entails the entry of the skeleton frame 3 into the open position; the open skeleton frame 3 is finally lowered into the frame member 1 until it assumes the position shown in Fig. 1, whereupon the gripper 21 is closed and herein causes the skeleton frame 3 to slip into its closed position according to Fig. 2 by means of the switching or shifter rods 13a, 13b.
In this closed position the projections 9a of the pivot lever 9 have snapped into the recesses 2. Frame member 1 is therefor supported from beneath a-t four points and can be lifted, pivoted and rotated by means of the grab excavator until it assumes the desired position; since the gripper 21 grips the shifter rods 13a, 13b within itself in all these operations, there occurs again a direct transmittal of the motion caused by the grab excavator through the skeleton frame 3 together with the load without that pendulum motions occur. The chain pendants 20 are slack in the course of this; the skeleton frame 3 together with the load is supported and held solely by the gripper 21 of the grab excavator. When the frame member 1 is deposited at the desired spot, the gripper 21 is opened, wh-lch simultaneously means the shifting of the skeleton frame 3 into the open position, so that same can be moved out of the frame member 1 7~
by raising the gripper 21; herein the chain pendants are under tension. If a frame member 1 cons-titutes the wall portion of a chamber, the skeleton frame 3 can be disconnected and the grab excavator can be used for excavating inside o~ t~le ~rame member 1 if ~e are dealing with loose soil such as sand, gravel or round gravel, with the frame member 1 serving herein as a slip form.
If the skeleton frame 3 is used -together with a crane, then the two strand c~lain pendants 19 are fastened beneath into the suspension straps 14a, l~b and at the top at the crane hook. In all operations requiring the open position of the skeleton frame 3 the blocking link 18 must be located in the gap between the upper legs of the control levers lla, llb; only ~lhen the skeleton frame 3 assumes the completely lowered position in Fig. 1, can the blocking link 18 be moved out, whereupon the closed position of the skeleton 3 can be obtained by moving the crane upwards.
, .
2~78~a A considerable disadvantage of all three possibili-ties consists however in that two addi-tional persons are required apart from the operator of the hoist because of the always occurring pendulum motion of the load hanginy from the hoist for its positionally correct adjustment ahove and inside the pit receiving the burial chamber. This personnel requirement however increases the installation costs quite considerably.
The invention is based upon the task of reducing the costs for removing and positioning of such finished concrete parts during their installation, above all by reducing the required personnel but also by avoiding the ins-tallation of entirely or partially lost coupling means, also by increasing the safety when performing these measures and by doing away with the use of human labor.
:.
This is achieved in the invention by including a skeleton frame lowerable into the frame member, at whose bottom sides sit at least two pivoting levers, gripping beneath the frame member, with a pivot drive, which can be actuated by means of a hoist, which is detachably coupled with the arrangement.
With this design one can entirely do away with the attachment of coupling means to the frame member. Through gripping beneath the frame member by means of the pivoting levers receiving the load sideways crabbing is àvoided.
~7~
Since the arrangement is located within the frame member, no excess width of the pit receiviny the burial chamber is necessary. Finally the use of a yrab excavator permits to have the grab enyage at the pivot drive of the arrangement, so that the arrangement is to begin with placed into the frame member by means of the excavator and is then swiveled together with said frame member above the burial place or the pit, without the load executing a pendulum motion herein, so that one can entirely refrain from using manual labor and therefore no problems involving safety can arise.
It is provided in another version of the invention, that the skeleton frame has a shape corresponding to the inside contour of the frame member, wherein said skele-ton frame expediently extends across only two regions of the inside contour of the frame member, at whlch regions it rests against its inside surface. The contour agreement assures a good fixation of the skeleton frame in the frame member, while the limitation to two contact regions of the skeleton frame facilitates its introduction into the frame member.
These advantages are additionally increased if in accordance with another feature of the invention, the two regions of the skeleton frame resting against the inside surface of the frame member are arranged 50 as to be opposite each other. In order to herein adapt the skeleton frame to the different inside dimensions of the frame member, it is ' 2 ~
advisable to make the distance between the two opposite regions of the skeleton frame adjustable.
Another advantageous feature of the invention provides that the upper edge of the contact regions of the skeleton frame include a flange located outwardly at a right angle.
This flange represents a stop, limiting the depth of lowering the skeleton frame into the frame member; as soon as the flange comes to lie upon the upwardly oriented surface of the frame member, the lowering process is terminated.
A preferred embodiment example of the arrangenlent in the invention for use with rectangular frame members is designed in such a way, that the skeleton frame also has a rectangular shape and rests with its long sides against the inside surface of the long sides of the frame member, while its short sides are held to be spaced from the short sides of the frame member, wherein spacers sit outwardly at the short sides of the skeleton frame whose free ends have a chamfer extending inwards and downwards. This design again facilitates the insertion of the skeleton frame into the frame member, since to begin with the two long sides of the skeleton frame must be located within the contour of the frame member, while one of the spacers can still rest upon one of the short sides of the frame member. By longitudinal motion of the skeleton frarne with simultaneous sliding of the spacers upon the short side of the frame member the skeleton 0~7(~
frame is displaced for as long until t~le spacer piece leaves this short side and is now located i.nside of -the contour of the frame member; herein t~le other spacer pi.ece then comes to rest against the inside surface of the opposite short side of the frame member, since according to the invention the sum of the longitudinal dimensions of the two spacer pieces and the long side of the skeleton frame is equal to the inside length of the frame member.
In order to again be able to adapt the skeleton frame in this respect to different inside dimensions of the frame member, it is provided to make the length of the spacer pieces variable.
In another advantageous refinement of the invention tabs oriented downwards fit at the skeleton frame, which form the bearing of the pivoting levers, wherein these tabs are arranged at the four corner regions if the skeleton frame if it has a rectangular construction. Herein the pivoting or swiveling lever can be designed as grippers which can snap into recesses provided at the lower edge of the frame member or as retainers pressable against the inside surface of the frame members.
2 ~
~ n outwardly direc~ed protrusion is expediently provided at the lower end of the pivot levers, whose length is dimensioned in such a way, that when tl-le skeleton frame is lowered it forms a first guidance element sliding along the inside surface of the frame member. ~ is assures, that when the skeleton frame is lowered it cannot assume an obliqu~
position in the frame member and thus result in an undesired jamming of the skeleton frame.
This measure can be improved by another feature in the invention, namely by the outwardly oriented sides of the folded-back pivot lever forming a second guide element sliding along the inside surface of the frame member. In this way a secure guidance of the skeleton frame in the frame member is assured over the entire height of the lowering travel.
In another advantageous embodiment of the invention an axis with guide rods àrranged in a scissors-like fashion and rotatably supported at the axis ends is provided with the axis penetrating the skeleton frame in its center, wherein the lower end of each control lever is connected by a guide rod with the lower end of one pivot lever. Such a drive i5 sturdy and not prone to malfunction because of its simple design.
., ~ ' 1 `-`` 2~7~0 It would seem to be particularly advantageous, to connect the upper ends of two control levers lying axially opposite each other by respectively one swi-tching bar or shifting rod, which can be actuated by the gripper or grapple of a grab excavator. In this design the two jaws of the gripper hold the switching bars within themselves, so that when hoisting, sideways swiveling or rotatiny in the gripper this motion is directly transmitted to the skeleton frame or to the skeleton frame together with the frame member supported by it, without a pendulum motion of the load being permitted to occur.
In order to enable an entry of the drive unit into the open position of the skeleton frame when the gripper of the grab excavator is opened, which is the precondi-tion for lowering the skeleton frame into the frame member, the lower ends of the control levers are connected with each other by a return spring, wherein a stop is placed into the lower gap of the control levers prèventing their falling through.
Since a grab excavator is not always available, the skeleton frame mus-t also be usable in combination with a crane. For this purpose it is provide~ in the invention to fasten an outwardly oriented suspension strap at the upper end of each control lever. Respectively one two-strand chain hanger or pendant is fastened in the two suspension straps assigned to a short side, so that when the skelèton frame is ` 7,~7~
lifted the switching bars move toward each other, meaniny that the closed position of -the skele-ton frame is achieved.
.
In order to prevent such an occurrence when inserting the skeleton frame into the frame member which is indeed only possible in the open position of the skeleton frame, it is provided in an expedient feature of the invention to retain a blocking link introducible into the upper yap of the control lever at the skeleton frame. This blocking link assures the open position of the skeleton frame if it is introduced into the upper gap of the control levers; it must be removed from the upper gap with the chain hangers slack in order to have the skeleton frame assume its closed position.
If the skeleton frame is rectangular a suspension lug protruding upward is provided at its four corner regions, wherein a two strand chain pendant is fastened by means of shackles in the two suspension lugs of each short side of the skeleton frame, which chain pendant is hung with its other end into a safety hook fastened at the grapple of the grab excavator. In this way the grab excavator and the skeleton frame are coupled witll each other even i~ the skele-ton frame is in the open position when the switching bar and the gripper or grapple of the grab excavator are out o~
engagement.
20~7~5a In further development of the thought of the invention the skeleton frame has a heiyht corresponding to the height of several frame members stac]ced upon each other, wherein it is subdivided into two planar surfaces connected with each other by vertical struts, wherein the lower planar surface is provided with the pivot levers and spacer pieces and the upper planar surface with the pivot drive and the coupling means for connection to the hoist. ~erein it would seem to be quite advanta~eous, if upright angles are fastened at the top planar surface of the skeleton frame, whose outwardly oriented horizontal leg corresponds to the flange of the contact region of the skeleton frame. In this way the entire wall structure of a burial chamber can be moved and positioned in one step.
A preferred embodiment example of the invention is shown in the drawing.
It is shown on:
Fig. 1 a front view of the skeleton frame in the open position lowered into a rectangular frame member, Fig. 2 a front view of the skeleton frame in a closed position lowered into a rectangular frame member and 2~78~
Fig. 3 a top view of the drawiny in Fig. 1.
In Fig. 3 a finished concrete part in the form of a rectangular frame member 1 wit~l the two long sides la, lb and the two short sides lc, ld is shown. ~s can be seen from Figs. 1 and 2, recesses 2 open towards the inside and towards the bottom are provided in the lower edge of the frame member 1.
A skeleton frame 3 is located within the frame member 1, which skeleton frame is also designed to be rectangular. Its two long sides 3a, 3b are shorter than the long sides la, lb of the frame member 1 and rest against their inner surfaces, while its two short sides 3c, 3d are approximately as long as the inside dimension of the short sides lc, ld of the frame member 1 as well as being arranged to be spaced from these.
This distance is bridged by respectively one spacer 4a, 4b sitting at the center at the short sides 3c, 3d, whose free end comprises a chamfer 5 extending downwards and inwards.
The long sides 3a, 3b of the skeleton frame 3 are provided with an outwardly oriented flange 6, which comes to rest upon the upwardly pointed surface of the long sides la, lb of the frame member 1 in the completely lowered position of the skeleton frame 3.
Four suspension lugs 7 are provided in the corner regions of the skeleton frame 3 on its top side Approximately opposite, the four downwardly oriented tabs 8 sit at the bo`ttom side of the s]celeton frame 3, at which tabs the pivot levers 9 are supported which comprise at their bottom end an out~lardly oriente~ protrusion 9a and an inwardly oriented bearing extension 9b.
A guide rod 10 is retained at each bearing extension 9b, by means of which the pivot lever 9 is connected to the lower end of a control lever lla or llb in an articulated manner.
The control levers lla, llb are arranged scissor-like and are supported to be rotatable on both ends of an axis 12 penetrating centrally through the skeleton frame 3. The upper ends of the two control levers lla are connected with each other by a switching rod 13a and the upper ends of the two control lever llb are connected with each other by means of a switching rod 13b and are equipped with outwardly oriented suspension straps 14a, 14b. The lower legs of the control levers lla, lib are connected by a flexural return element 15 in the form of a helical tension spring; in addition a stop 16 is provided in the gap between the lower legs of the control levers 11 and llb preventing their falling through. At the short side 3c, 3d of the skeleton frame 3 a blocking link 18 is located at 17 so as to be longitudinally displaceable or pivotable, ~hich can be introduced into the gap between the upper leys o~ the control levers lla, llb.
i_ ~
20~7~a A two-~tr~nd chain pendant o~ hal-ycr is ~esignated by the numeral 1`9, which at one end is fastened into the suspension straps l~a and l~b and with the other end at a crane hook not shown here. A two-strand chain pendant is also designated with 20, which however is hung with the one end into the retaining lug 7 of a short side 3c or 3d of the skeleton frame and with -the other end into a safety hook attached at the gripper 21 of the grab excavator.
The manipulation and mode of operation of the arrangement in the invention is as follows:
To begin with the two two-strand chain pendants 20 are fastened in the retaining strap 7 and the safety hook attached to be opposite at the upper end of the gripper 21 of the grab excavator. Then the yripper 21 with the skeleton frame 3 hanging thereon is lifted up and pivoted above the frame member 1 to be moved. By actua-ting the rotary head of the grab excavator the skeleton frame 3 is furthermore brought into a position where it is contained within the periphery of the frame member 1 and its contact regions run parallel to the corresponding regions of the frame member.
During these operations the gripper 21 is closed so that it grips the shifter rods 13a, 13b within itself and that its contact regions run parallel to the corresponding regions of the frame member 1. During these operations the gripper 21 is closed, so that it grips the switchiny rods i3a, 13b 2~7~sa within itself and therefore transfers the movements initiated by the grab èxcavator directly to the skeleton frame 3. Now the gripper 21 has opened which, because of the action of the return element 15, entails the entry of the skeleton frame 3 into the open position; the open skeleton frame 3 is finally lowered into the frame member 1 until it assumes the position shown in Fig. 1, whereupon the gripper 21 is closed and herein causes the skeleton frame 3 to slip into its closed position according to Fig. 2 by means of the switching or shifter rods 13a, 13b.
In this closed position the projections 9a of the pivot lever 9 have snapped into the recesses 2. Frame member 1 is therefor supported from beneath a-t four points and can be lifted, pivoted and rotated by means of the grab excavator until it assumes the desired position; since the gripper 21 grips the shifter rods 13a, 13b within itself in all these operations, there occurs again a direct transmittal of the motion caused by the grab excavator through the skeleton frame 3 together with the load without that pendulum motions occur. The chain pendants 20 are slack in the course of this; the skeleton frame 3 together with the load is supported and held solely by the gripper 21 of the grab excavator. When the frame member 1 is deposited at the desired spot, the gripper 21 is opened, wh-lch simultaneously means the shifting of the skeleton frame 3 into the open position, so that same can be moved out of the frame member 1 7~
by raising the gripper 21; herein the chain pendants are under tension. If a frame member 1 cons-titutes the wall portion of a chamber, the skeleton frame 3 can be disconnected and the grab excavator can be used for excavating inside o~ t~le ~rame member 1 if ~e are dealing with loose soil such as sand, gravel or round gravel, with the frame member 1 serving herein as a slip form.
If the skeleton frame 3 is used -together with a crane, then the two strand c~lain pendants 19 are fastened beneath into the suspension straps 14a, l~b and at the top at the crane hook. In all operations requiring the open position of the skeleton frame 3 the blocking link 18 must be located in the gap between the upper legs of the control levers lla, llb; only ~lhen the skeleton frame 3 assumes the completely lowered position in Fig. 1, can the blocking link 18 be moved out, whereupon the closed position of the skeleton 3 can be obtained by moving the crane upwards.
Claims (28)
1. Arrangement for moving and positioning finished concrete parts configured as frame members, which are stacked upon each other and form the external wall of a space, for instance of a burial chamber, characterized in that the arrangement comprises a skeleton frame 3 lowerable into the frame member 1 with two pivot levers 9 with a pivot drive gripping beneath the frame member 1 sitting at the bottom sides of said skeleton frame, and the pivot drive being actuatable by means of a hoisting mechanism detachably coupled with the arrangement.
2. Arrangement according to claim 1, characterized in that the skeleton frame 3 has a shape matching the inside contour of the frame member 1.
3. Arrangement according to claim 2, characterized in that the skeleton frame 3 extends only across at least two regions of the inside contour of the frame member 1 in which it rests against its inside surface.
4. Arrangement according to claim 3, characterized in that the two regions of the skeleton frame 3 resting against the inner surface of the frame member 1 are arranged to be located opposite each other.
5. Arrangement according to claim 4, characterized in that the spacing between the two oppositely located regions of the skeleton frame 3 is adjustable.
6. Arrangement according to claim 2-5, characterized in that a flange 6 oriented outwards at right angles sit at the upper edge of the contact regions of the skeleton frame 3.
7. Arrangement according to claims 2-6, characterized in that with a rectangular configuration of the frame member 1 the skeleton frame 3 has also a rectangular shape and rests with its long sides 3a, 3b against the inside surface of a long side 1a, 1b of the frame member 1, while its short sides 3c, 3d are held to be spaced from the short sides 1c, 1d of the frame member 1, wherein spacers 4a, 4b sit externally at the short sides 3c, 3d of the skeleton frame 3, with the free ends of said spacers comprising a chamfer extending downwards and inwards.
8. Arrangement according to claim 7, characterized in that the sum of the longitudinal dimensions of the two spacers 4a, 4b and the long sides 3a or 3b of the skeleton frames 3 equals the inner length of the frame member 1.
9. Arrangement according to claim 8, characterized in that the length of the spacers 4a, 4b can be changed.
10. Arrangement according to claim 1 and at least one of the following, characterized in that tangs 8 oriented downward sit at the skeleton frames 3 which form the bearing of the pivot levers 9.
11. Arrangement according to claim 10, characterized in that with a rectangular shape of skeleton frame 3 the tangs 8 are arranged at its four corner regions.
12. Arrangement according to claim 11, characterized in that the pivot levers 9 is designed as a gripper which can be snapped into the recesses 2 provided at the lower edge of the frame member 1.
13. Arrangement according to claim 11, characterized in that the pivot levers 9 are designed as retainers pressable against the inner surface of the frame members 1.
14. Arrangement according to claims 12 and 13, characterized in that an outwardly oriented projection 9a is provided at the lower edge of the pivot lever 9, whose length is dimensioned so that it forms a first guide element sliding along the inner surface of the frame member 1 when the skeleton frame 3 is lowered.
15. Arrangement according to claim 14, characterized in that the outwardly oriented side of the folded backwards pivot levers 9 form a second guide element sliding along the inner surface of the frame member 1.
16. Arrangement according to claim 1 and at least one of the following, characterized in that an axis 12 penetrating centrally through the skeleton frame 3 with control levers 11a, 11b arranged to the scissor-like and supported to be rotatable at its end is provided as a drive for the pivot levers 9.
17. Arrangement according to claim 16, characterized in that the lower end of each control lever 11a or 11b is connected with a lower end of a pivot lever 9 through a guide rod 10.
18. Arrangement according to claims 16 and 17, characterized in that the upper ends of respectively two control levers 11a or 11b lying axially opposite each other are connected by a shifting rod 13a, 13b.
19. Arrangement according to claim 18, characterized in that the shifting rods 13a, 13b can be actuated by means of the gripper 21 of a grab excavator.
20. Arrangement according to claim 19, characterized in that the lower ends of the control levers 11a, 11b are connected with each other through a flexural return element 15.
21. Arrangement according to claim 20, characterized in that stop 16 is placed in the lower gap of the control levers 11a, 11b so as to prevent their falling through.
22. Arrangement according to claim 16, characterized in that a suspension trap 14a, 14b oriented outwardly is fastened at the upper end of each control lever 11a, 11b.
23. Arrangement according to claim 22 characterized in that a blocking link 18 introducible into the upper gap of the control levers 11a, 11b is fastened at the skeleton frame 3.
24. Arrangement according to claim 1 and at least one of the following, characterized in that with a rectangular shape of the skeleton frame 3 respectively one retaining lug 7 protruding upwardly is provided in its four corner regions.
25. Arrangement according to claim 24, characterized in that a two-strand chain pendant 20 is fastened by means of shackles in the two suspension lugs 7 of each short side 3c or 3d of the skeleton frame 3, which chain pendant is hung with its other end into a safety hook fastened at the gripper 21 of the grab excavator.
26. Arrangement according to claim 1 and at least one of the following, characterized in that the skeleton frame 3 has a height corresponding to the height of several stacked upon each other frame members 1.
27. Arrangement according to claim 26, characterized in that the skeleton frame 3 is subdivided into two planes connected with each other by vertical struts, of which the bottom 1 is provided with the pivot levers 9 and the spacers 4a, 4b as well as the upper one being provided with the pivot drive and the coupling means for connection to the hoisting mechanism.
28. Arrangement according to claim 27, characterized in that standing angles are attached at the upper plane of the skeleton frame 3 whose outwardly oriented horizontal legs correspond to the flange 6.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE4027447A DE4027447A1 (en) | 1990-08-30 | 1990-08-30 | DEVICE FOR MOVING AND POSITIONING PRECAST CONCRETE PARTS |
| DEP4027447.0-25 | 1990-08-30 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CA2047850A1 true CA2047850A1 (en) | 1992-03-01 |
Family
ID=6413239
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA002047850A Abandoned CA2047850A1 (en) | 1990-08-30 | 1991-07-25 | Arrangement for moving and positioning finished concrete parts |
Country Status (6)
| Country | Link |
|---|---|
| EP (1) | EP0472821B1 (en) |
| AT (1) | ATE123742T1 (en) |
| CA (1) | CA2047850A1 (en) |
| DE (2) | DE4027447A1 (en) |
| DK (1) | DK0472821T3 (en) |
| ES (1) | ES2073616T3 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109353835A (en) * | 2018-12-21 | 2019-02-19 | 江苏江桥机械制造有限公司 | A kind of automatic high speed segment palletizing production line |
| CN114250981A (en) * | 2021-12-31 | 2022-03-29 | 中建八局第一建设有限公司 | Assembly type steel structure installation device and implementation method thereof |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE4410395A1 (en) * | 1994-03-25 | 1995-09-28 | Siemens Ag | Lifting attachment improves the security of the load |
| DE19508347A1 (en) * | 1995-03-09 | 1996-09-12 | Abb Patent Gmbh | Draw anchor for lift device |
| CN111807216B (en) * | 2020-06-30 | 2022-02-15 | 中国建筑第五工程局有限公司 | Hoisting device for prefabricated components of fabricated building |
Family Cites Families (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE7343325U (en) * | 1974-03-07 | Cordes J & E Gmbh | Device for lifting manhole rings | |
| US2677570A (en) * | 1952-04-07 | 1954-05-04 | Jones & Laughlin Steel Corp | Article handling device |
| US2832633A (en) * | 1954-06-30 | 1958-04-29 | Richard E Compson | Lifting device for coiled material |
| US3057651A (en) * | 1960-05-06 | 1962-10-09 | Blocklifter Corp | Tool for handling building blocks |
| FR1399631A (en) * | 1963-04-05 | 1965-05-21 | Gripping device for lifting containers or other objects | |
| CH424147A (en) * | 1965-10-28 | 1966-11-15 | Tissieres Francois | Device for lifting and placing construction elements |
| DE6751687U (en) * | 1968-07-26 | 1969-02-13 | Guenter L Geise | MANHOLE FROM PRE-FABRICATED COMPONENTS |
| FR2201379B1 (en) * | 1972-10-04 | 1975-03-28 | Nord Pas Calais Houilleres | |
| DE2318733A1 (en) * | 1973-04-13 | 1974-10-24 | Gustav Deeken | DEVICE FOR LIFTING MANHOLE COVERS |
| CH665863A5 (en) * | 1984-09-10 | 1988-06-15 | Ferdinand Kofel | Road surface shaft frame-lifting tackle - has central lifting bar with thrust and puller arms and wedges |
| DE8602240U1 (en) * | 1986-01-29 | 1986-03-06 | Müller, Franz, 8949 Pfaffenhausen | Manhole ring lifting device |
| US4784398A (en) * | 1987-05-18 | 1988-11-15 | Lund Arnold M | Core lifting chuck |
| DE8900457U1 (en) * | 1989-01-17 | 1989-03-16 | Mühlbauer, Roland, 8600 Bamberg | Device for supporting loads, particularly industrial grinding wheels or the like. |
-
1990
- 1990-08-30 DE DE4027447A patent/DE4027447A1/en not_active Withdrawn
-
1991
- 1991-05-18 ES ES91108088T patent/ES2073616T3/en not_active Expired - Lifetime
- 1991-05-18 EP EP91108088A patent/EP0472821B1/en not_active Expired - Lifetime
- 1991-05-18 DE DE59105690T patent/DE59105690D1/en not_active Expired - Fee Related
- 1991-05-18 DK DK91108088.5T patent/DK0472821T3/en active
- 1991-05-18 AT AT91108088T patent/ATE123742T1/en not_active IP Right Cessation
- 1991-07-25 CA CA002047850A patent/CA2047850A1/en not_active Abandoned
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109353835A (en) * | 2018-12-21 | 2019-02-19 | 江苏江桥机械制造有限公司 | A kind of automatic high speed segment palletizing production line |
| CN109353835B (en) * | 2018-12-21 | 2023-10-13 | 江苏江桥机械制造有限公司 | Automatic high-speed building block stacking production line |
| CN114250981A (en) * | 2021-12-31 | 2022-03-29 | 中建八局第一建设有限公司 | Assembly type steel structure installation device and implementation method thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| ES2073616T3 (en) | 1995-08-16 |
| ATE123742T1 (en) | 1995-06-15 |
| EP0472821A1 (en) | 1992-03-04 |
| DE59105690D1 (en) | 1995-07-20 |
| EP0472821B1 (en) | 1995-06-14 |
| DK0472821T3 (en) | 1995-08-07 |
| DE4027447A1 (en) | 1992-03-12 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| FZDE | Discontinued |