US3530679A - Tensioning device for the sheeting of machine dug service trenches - Google Patents

Tensioning device for the sheeting of machine dug service trenches Download PDF

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Publication number
US3530679A
US3530679A US793409*A US3530679DA US3530679A US 3530679 A US3530679 A US 3530679A US 3530679D A US3530679D A US 3530679DA US 3530679 A US3530679 A US 3530679A
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Prior art keywords
tensioning
sheeting
tensioning device
elements
extension
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Expired - Lifetime
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US793409*A
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English (en)
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Josef Krings
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    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
    • E02D17/00—Excavations; Bordering of excavations; Making embankments
    • E02D17/06—Foundation trenches ditches or narrow shafts
    • E02D17/08—Bordering or stiffening the sides of ditches trenches or narrow shafts for foundations
    • E02D17/083—Shoring struts
    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
    • E02D17/00—Excavations; Bordering of excavations; Making embankments
    • E02D17/06—Foundation trenches ditches or narrow shafts
    • E02D17/08—Bordering or stiffening the sides of ditches trenches or narrow shafts for foundations

Definitions

  • the tensioning devices are connected to the posts for adjustment along the posts in interlocked engagement therewith and for each of releasal by generally dumbbell shaped connectors.
  • the tensioning devices may be further extended by the addition of extension elements at the ends thereof, which extension elements may also be axially extensible.
  • the invention concerns a tensioning device for the sheeting of machine dug service trenches or similar things by means of sheeting plates and of supports arranged thereon, for the reception of the shoes horizontally supportable against the sheeting plates and of tensioning elements adjustable longitudinally by means of a spindle drive.
  • a known tensioning device consists of sections of pipe which can be connected with one another and of which the pipe sections which happen to be on the outside are developed as a nut for the reception of a threaded spindle whose outside edge carries a block and which are held in posts having a U-profile, which in their turn have been attached firmly to the sheeting plates.
  • Each block is connected firmly with the assigned post by means of bolts.
  • the present invention is based on the task of creating a tensioning device which will avoid the above mentioned deficiencies, which, on the one hand, will be insensitive to weather and dirt to a large extent, will not require any screw fastening connections and, on the other hand, will be independent of the movements of a sheeting plate.
  • the invention resides in the fact that the abutments are developed in the form of steel posts with a slit box profile and that the shoes of the tensioning elements are capable of guiding in a positively locking manner along the entire length of the posts.
  • the tensioning elements can serve both as tensioning members and as pressure members.
  • the steel posts can be detachably connected with the sheeting plates.
  • the steel posts do not necessarily have to be integrally connected with the sheeting plates. As a result of this, one will accomplish savings in the fabrication of the sheeting plates.
  • each tensioning member consists of two spindles with oppositely oriented thread parts facing each other, a pipe telescoped over the spindles with a nut element arranged in the middle with oppositely directed threaded sections, and pressure housings, arranged at the ends of the spindles and with a larger crosssection than-the pipe, also of a shoe which is formed similarly to a dumbbell of two disks or blocks connected axially by way of a pressure bar, one of which blocks can be received in the pressure housing and the other block can be received in a positively locking manner in the steel post.
  • extension elements have been provided for the extension of the tensioning elements, which consist of a block that can be inserted into a pressure housing and of a further pressure housing for the reception of the shoe, which further pressure housing is connected with the associated block either rigidly or by means of another threaded connection.
  • FIG. 1 is a side view with parts in longitudinal section according to the line I-I of FIG. 2 of the tensioning device according to the invention.
  • FIG. 2 is a top view with parts in longitudinal section following the line II--II of FIG. 1.
  • FIG. 3 is a top view on an enlarged scale of an extension element.
  • FIGS. 1 and 2 there is shown the tensioning device 1 according to the invention in connection with the sheeting plates 2 and steel posts 3.
  • the tensioning device 1 consists of tensioning elements 4 each of which consists of two spindles 5, 6 with oppositely directed thread parts 7, 8 of a pipe 9 telescoped over the spindles 5, 6 having thread sections 10, 11 which are oppositely directed and arranged in the middle of the pipe, and of pressure housings 12 arranged at the ends of the spindles 5, 6.
  • these pressure housings 12 will have a larger cross-section than the pipe 5 and each has a box-shaped profile which is open on top.
  • Each pressure housing is adapted to receive a shoe 13 which consists, similar to a dumbbell, of two blocks 15, 16 or disks which are rigidly connected with one another by way of a short pressure bar 14 (FIG. 3) and at an axial distance from one another. Every block 16 is introduced into a respective pressure housing 12 through a lateral opening 17 therein and is thus protected against any dirt which may drop down.
  • the block 15 is guided in positively locking engagement in a steel post 3, which, viewed in crosssection, has a slit box profile.
  • the steel post 3 can stand by itself alone or it can be connected with the sheeting plate 2 either as an integral part thereof or detachably connected thereto.
  • lateral supports 18 have been provided on each pressure housing 12, the lateral supports carrying guide rolls 19 running along the outside surfaces of the steel post 3.
  • tensioning elements 4 are required for the tensioning of the sheeting plates 2.
  • the tensioning elements 4 can be connected with one another by means of braces 20, as shown in FIG. 1, to form a tensioning frame.
  • the braces 20 will be releasably attached to the pressure housings 12. This design, moreover, oifers the advantage that the tensioning elements 4 can be pulled out of the service trench as a unit.
  • the tensioning elements 4 can be manufactured in a uniform length. Within a limited range, the length of the tensioning elements 4 can be varied by twisting pipe 9 and through a corresponding separating movement of the spindle 5, 6.
  • extension elements 21 have been provided (FIG. 3).
  • such extension elements consisted of flanged pieces of pipe, which were attached to the body of the pipe of the tensioning element by means of screws.
  • screws in practice, the fact that the screws required for this purpose rusted into it or were lost, turned out again and again as being rather disadvantageous.
  • the extension element 21 consists, as compared to former constructions, of a block 22 which has the same dimensions as the block 16 of the shoe 13, of a pressure housing 23 which is similar to the pressure housing 12, and of an intermediate connection 24, which can be formed either as a rigid bolt (as shown) or else as a pipe or as a further tensioning element with adjustable spindles.
  • extension element 21 thus merely needs to be inserted with its block 22 into the pressure housing 12 of the tensioning element 4 in order to extend said element. It is also possible to connect several extension elements 21 in the same manner with one another. Possibly they can also be secured by bolts or other locking elements which can be attached in a suitable manner.
  • tensioning elements 4 are interlocked with the steel posts 3 either seated against the sheeting plates 2 or forming a part of these plates, and then are fixed at the required height, for example, by means of holding bolts 25. Subsequently the pipe 9, which has been provided with extension members 26, will be twisted until the tensioning elements 4 exert the required pressure tension on the sheeting plates 2. If in the course of further work a sheeting plate will be twisted, then the tensioning elements 4 may remain in the horizontal position assumed by them previously, because the steel posts 3 can be moved relatively thereto.
  • the tensioning elements 4 can be used both as pressure and as tensioning elements, because all parts engage with one another in a positively locking manner.
  • a tensioning device for use in combination with opposed sheeting plates to form shoring and wherein said sheeting plates have associated therewith abutments in the form of posts, said tensioning device extending between a pair of said abutments and including a threaded drive for adjusting the length thereof and a pair of terminal shoes, each of said abutments being of a split box section and having positioned therein one of said shoes in interlocking engagement and for guided sliding movement therein, the threaded drive of each tensioning element including two spindles having threaded parts which are oppositely directed and face each other, a pipe telescoped over said spindles and having a nut part arranged in the middle thereof with oppositely directed threaded sections, and pressure housings arranged at the ends of the spindles and having a larger cross-section than the pipe, and each shoe having a configuration similar to that of a dumbbell and including two blocks connected by a pressure bar, one block of each shoe being positioned within one of said pressure housings and the other block of each shoe being rele
  • each extension element including a block insertable laterally into one of the pressure housings and a further pressure housing for the reception of one of said shoes, said further pressure housing being connected with said extension element block.
  • Tensioning device together with supports on said pressure housing carrying guide rollers running outside along said post.
  • Tensioning device wherein there are at least two tensioning elements arranged one above the other and rigidly with one another by means of braces to form a tension frame.

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  • Engineering & Computer Science (AREA)
  • Mining & Mineral Resources (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Paleontology (AREA)
  • Civil Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Structural Engineering (AREA)
  • Mutual Connection Of Rods And Tubes (AREA)
  • Footwear And Its Accessory, Manufacturing Method And Apparatuses (AREA)
US793409*A 1968-01-24 1969-01-23 Tensioning device for the sheeting of machine dug service trenches Expired - Lifetime US3530679A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEK0064533 1968-01-24

Publications (1)

Publication Number Publication Date
US3530679A true US3530679A (en) 1970-09-29

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ID=7231671

Family Applications (1)

Application Number Title Priority Date Filing Date
US793409*A Expired - Lifetime US3530679A (en) 1968-01-24 1969-01-23 Tensioning device for the sheeting of machine dug service trenches

Country Status (5)

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US (1) US3530679A (fr)
AT (1) AT291862B (fr)
CH (1) CH483523A (fr)
DE (1) DE1708539B1 (fr)
FR (1) FR2000672A1 (fr)

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4019328A (en) * 1975-12-08 1977-04-26 Jean Marie Gerard Koehl Arrangement for making a prefabricated wall
JPS5258212A (en) * 1975-11-07 1977-05-13 Obinata Akiyoshi Sheathing method and apparatus
US4376599A (en) * 1980-02-09 1983-03-15 Josef Krings Ditch shoring unit
US5503504A (en) * 1992-08-10 1996-04-02 Emunds And Staudinger Gmbh Sheeting device
US6821057B1 (en) 2000-04-05 2004-11-23 Maksim Kadiu Magnetic shoring device
US7048471B2 (en) 2000-04-05 2006-05-23 Maksim Kadiu Shoring device
US7056067B2 (en) * 2003-10-03 2006-06-06 Max Kadiu Trench shoring device
US7614828B1 (en) * 2006-03-27 2009-11-10 Evans Daniel D Conduit retainer apparatus
US20110058903A1 (en) * 2009-09-08 2011-03-10 Max Kadiu Telescopic shoring system
US20230235524A1 (en) * 2019-05-03 2023-07-27 Yun Yeong SEO Strut connector

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2364383A1 (de) * 1973-12-22 1975-06-26 Emunds U Staudinger Fabrik Fue Vorrichtung zum abstuetzen von grabenwaenden
DE2720719C2 (de) * 1977-05-07 1984-04-05 Theissen, Hans, 5138 Heinsberg Vorrichtung zum Abstützen von Grabenwänden
DE2832321C2 (de) * 1978-07-22 1982-10-14 Josef Ing.(grad) 5142 Hückelhoven Emunds Grobeinstellbarer Spannrahmen für Verbauplatten
DE2835948C2 (de) * 1978-08-17 1982-10-28 Josef Ing.(grad.) 5142 Hückelhoven Emunds Grobeinstellbarer Spannrahmen für Verbauplatten
DE3516342A1 (de) * 1985-05-07 1986-11-13 Johann 8351 Mariaposching Wenninger Saeulenfuss

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US587274A (en) * 1897-07-27 Ditching-jack
US764798A (en) * 1903-10-17 1904-07-12 Emil Diebitsch Apparatus for building tunnels or the like.
US891897A (en) * 1906-08-07 1908-06-30 Carl P Astrom Trench-brace.
CH135989A (de) * 1929-01-11 1929-10-31 Peter Emil Verstellbare Grabenspriesse.

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH350933A (de) * 1956-06-21 1960-12-15 Haessig Alois Vorrichtung zur Abstützung von Grabenwänden
DE1165506B (de) * 1959-02-14 1964-03-12 Johann Bodenstein Vorrichtung zum Aussteifen der Waende von Baugraeben, Rohrgraeben u. dgl.

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US587274A (en) * 1897-07-27 Ditching-jack
US764798A (en) * 1903-10-17 1904-07-12 Emil Diebitsch Apparatus for building tunnels or the like.
US891897A (en) * 1906-08-07 1908-06-30 Carl P Astrom Trench-brace.
CH135989A (de) * 1929-01-11 1929-10-31 Peter Emil Verstellbare Grabenspriesse.

Cited By (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5258212A (en) * 1975-11-07 1977-05-13 Obinata Akiyoshi Sheathing method and apparatus
US4019328A (en) * 1975-12-08 1977-04-26 Jean Marie Gerard Koehl Arrangement for making a prefabricated wall
US4376599A (en) * 1980-02-09 1983-03-15 Josef Krings Ditch shoring unit
US5503504A (en) * 1992-08-10 1996-04-02 Emunds And Staudinger Gmbh Sheeting device
US7309191B2 (en) 2000-04-05 2007-12-18 Max Kadiu Shoring system
US6821057B1 (en) 2000-04-05 2004-11-23 Maksim Kadiu Magnetic shoring device
US7048471B2 (en) 2000-04-05 2006-05-23 Maksim Kadiu Shoring device
US7056067B2 (en) * 2003-10-03 2006-06-06 Max Kadiu Trench shoring device
US7614828B1 (en) * 2006-03-27 2009-11-10 Evans Daniel D Conduit retainer apparatus
US20110058903A1 (en) * 2009-09-08 2011-03-10 Max Kadiu Telescopic shoring system
US8613573B2 (en) 2009-09-08 2013-12-24 Max Kadiu Telescopic shoring system
US20230235524A1 (en) * 2019-05-03 2023-07-27 Yun Yeong SEO Strut connector
US12037761B2 (en) * 2019-05-03 2024-07-16 Yun Yeong SEO Strut connector

Also Published As

Publication number Publication date
CH483523A (de) 1969-12-31
FR2000672A1 (fr) 1969-09-12
DE1708539B1 (de) 1971-09-08
DE1708539C2 (fr) 1975-07-17
AT291862B (de) 1971-06-15

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