US3667720A - Tie rod configuration for sealing the threaded inner end of a shebolt - Google Patents

Tie rod configuration for sealing the threaded inner end of a shebolt Download PDF

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Publication number
US3667720A
US3667720A US859757A US3667720DA US3667720A US 3667720 A US3667720 A US 3667720A US 859757 A US859757 A US 859757A US 3667720D A US3667720D A US 3667720DA US 3667720 A US3667720 A US 3667720A
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US
United States
Prior art keywords
tie rod
shebolt
ridge
tie
sealing
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
US859757A
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English (en)
Inventor
Chester I Williams
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.)
WILLIAMS FORM ENGINEERING Corp A MI CORP
Original Assignee
Chester I Williams
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Filing date
Publication date
Application filed by Chester I Williams filed Critical Chester I Williams
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Publication of US3667720A publication Critical patent/US3667720A/en
Assigned to WILLIAMS FORM ENGINEERING CORPORATION, A MI CORP. reassignment WILLIAMS FORM ENGINEERING CORPORATION, A MI CORP. ASSIGNMENT OF ASSIGNORS INTEREST. SEE RECORD FOR DETAILS Assignors: WILLIAMS, MABEL MARIE, PERSONAL REPRESENTATIVE OF THE ESTATE OF C. I. WILLIAMS, DEC'D.
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
    • E04G17/00—Connecting or other auxiliary members for forms, falsework structures, or shutterings
    • E04G17/06—Tying means; Spacers ; Devices for extracting or inserting wall ties
    • E04G17/065—Tying means, the tensional elements of which are threaded to enable their fastening or tensioning
    • E04G17/0655—Tying means, the tensional elements of which are threaded to enable their fastening or tensioning the element consisting of several parts
    • E04G17/0658—Tying means, the tensional elements of which are threaded to enable their fastening or tensioning the element consisting of several parts remaining completely or partially embedded in the cast material
    • 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
    • E04G17/00—Connecting or other auxiliary members for forms, falsework structures, or shutterings
    • E04G17/06—Tying means; Spacers ; Devices for extracting or inserting wall ties
    • E04G17/07—Tying means, the tensional elements of which are fastened or tensioned by means of wedge-shaped members
    • E04G17/0728—Tying means, the tensional elements of which are fastened or tensioned by means of wedge-shaped members the element consisting of several parts
    • E04G17/0742—Tying means, the tensional elements of which are fastened or tensioned by means of wedge-shaped members the element consisting of several parts remaining completely or partially embedded in the cast material
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T279/00—Chucks or sockets
    • Y10T279/17—Socket type
    • Y10T279/17291—Resilient split socket
    • Y10T279/17299—Threaded cam sleeve

Definitions

  • 3,405,904 utilizes an annular ridge engageable with the end of the tie rod as an abutment to determine form spacing, but this arrangement does not provide a sufiicient seal at the entrance of the threaded opening in the shebolt because of the possibilities of various forms of misalignment. Auxiliary sealing arrangements such as O-rings are too expensive for use in these applications.
  • the present invention provides an annular ridge adjacent the inner end of the threading at each of the ends of the inner tie rod.
  • This ridge is deformable under forces that can be generated by tightening the shebolt on the inner tie rod, which is to say that the axial thickness of the ridge must have a relationship to the cross-section of the inner tie rod such that sufficient torque can be generated to induce at least a slight deformity of the annular ridge as it engages the end of the shebolt.
  • the shebolt is preferably counterbored to eliminate a projection that seems to inevitably accompany the beginning of the interior threading, and which is caused by the entrance of the tap during the thread-cutting operation. The provision of the counterbore maintains the inner end of the shebolt in a plane perpendicular to the shebolt axis, without the local distortion that would otherwise be present.
  • annular sealing ridge can either accommodate itself to a transverse face at the end of the shebolt, or may enter into the counterbore in a forced-fit arrangement.
  • the ridge may also abut the transverse face defined by the base of the counterbore, if desired.
  • the sealing arrangement is preferably used in conjunction with an interior abutment installed in the shebolt for engagement with the end of the tie rod to positively determine the form spacing. In this combination, it is apparent that the spacing between the ridge and a transverse end wall at the end of the tie rod will be slightly exceeded by the spacing between the interior abutment and the transverse end face on the shebolt against which the ridge abuts. The deformability of the sealing ridge removes any interference with the functioning of the spacing stop.
  • FIG. 1 is a perspective view showing a typical wallform tie installation.
  • FIG. 2 is a sectional view on an enlarged scale over FIG. 1, showing one modification of the invention, in which the sealing ridge enters into the shebolt counterbore.
  • FIG. 3 illustrates a further modification of the invention in which the sealing ridge abuts the inner end of the shebolt.
  • the spaced form systems 10 and 11 are of standard construction. Each of these includes a plywood panel 12-13 stifiened by vertical studs 14 and 15, which are spaced along the form panels at regular intervals. Horizontal pairs of walers 1647 and 18-19 extend across the vertical studs to transfer forces from the tie system.
  • the tie system shown in FIG. 1 is repeated across the area defined by the form systems in a pattern having a density sufficient to resist the forces involved. This density will be determined by the depth of the pour of cancrete, as this will determine the pressure forces involved.
  • the patterns density of the tie systems will be interrelated with the cross-sectional area of the inner tie rod 20' to produce a required degree of security.
  • the tie rod 20 is preferably offset slightly at 20a to inhibit rotation within the concrete as the shebolts are disengaged after the concrete has set, and thus maintain the sealed relationship between the rod and the concrete.
  • the opposite ends of the inner tie rod 20' are threaded for engagement with interior threading normally provided at the inner extremities of the shebolts 21 and 22.
  • the outer portions of the shebolts traverse the space between the Waler pairs 16-17 and 18-19; and the pressure from the poured concrete is resisted by the transfer of forces from the shebolts to the walers by the wedges 23 and 24, which engage with shoulders on the shebolts in a conventional manner.
  • the forms may be positioned prior to the pouring of concrete by the so-called hairpin spacers 25 and 26, which engage the inner faces of the walers.
  • a light temporary nailing of the walers 16-17 and 18-19 to the studs 14 and 15, respectively, will result in maintenance of proper form spacing prior to the pouring of the concrete. This spacing will be controlled primarily by the depth of the threaded 3 interengagement between the ends of the tie rod 20 and the shebolts.
  • the inner ties 20* and 27 are provided with an annular ridge at 28 and 29, which is preferably rolled in the same operation that produces the threading 30 and 31, respectively.
  • the ridge 28 enters into the counterbore provided at the inner end of the shebolt 21, and abuts against the base of the counterbore in sealing engagement. It is preferable that this system be used in conjunction with the spacing insert 32, which is installed in the shebolt 21 for engagement with the end of the tie rod 20 as a positive stop.
  • the axial thickness of the ridge 28 is such as to permit deformity of an outer peripheral portion of the ridge in relation to an inner annular portion thereof immediately adjacent the integral merger of the ridge with the tie rod on engagement with a transverse surface on the shebolt, as the bolt and tie rod are tightened to bring the stop insert 32 into engagement.
  • the sealing ridge 29 has only partially entered the counterbore 33 in the shebolt 34, abutting primarily against the inner face of the shebolt. Sufficient deformity can be applied to the ring to assure the engagement of the spacing stop 35 with the outer end of the tie 27.
  • a tie system for securing spaced wall forms with respect to each other including an inner tie rod provided with threaded ends terminating in transverse end walls; a pair of elongate shebolts normally secured to and traversing spaced wall forms, respectively; each said shebolt including, adjacent an inner end thereof, a transverse end face and including a threaded bore extending longitudinally thereof from said end face and threadedly engaging a threaded end of said tie rod; spacing stop means fixedly positioned within the bore of each said shebolt in spaced relation to the end face thereof for limiting the axial movement of a threaded end of said tie rod coaxially of said threaded bore to an axial distance equal to the spacing between said end face and stop means; wherein the improvement comprises: a deformable annular ridge on said tie rod adjacent each said threaded end; each said annular ridge including an inner annular portion integral with said tie rod and an outer peripheral portion whose diameter exceeds the inner diameter of said threaded bore; and said inner annular
  • a tie system for securing spaced wall forms with respect to each other comprising; a pair of elongate shebolts normally secured to and traversing spaced wall forms, respectively; each said shebolt including adjacent an inner end thereof, a transverse end face and including a threaded bore extending longitudinally thereof from said end face; an inner tie rod provided with threaded ends and a deformable annular ridge adjacent each said threaded end; each said annular ridge having an axial thickness so related to the cross section of said tie rod that said ridge is deformable by an associated shebolt on tightening the threaded engagement thereof; each said annular ridge including an inner annular portion integral with said tie rod and an outer peripheral portion whose diameter exceeds the inner diameter of said threaded bore; said shebolts threadedly engaging the ends of said tie rod and in abutting engagement with said deformable ridges; and at least a portion of said outer peripheral portions of each said deformable ridge being deformed inwardly with respect to said inner annul

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  • 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)
  • Joining Of Building Structures In Genera (AREA)
  • Mutual Connection Of Rods And Tubes (AREA)
US859757A 1969-09-22 1969-09-22 Tie rod configuration for sealing the threaded inner end of a shebolt Expired - Lifetime US3667720A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US85975769A 1969-09-22 1969-09-22

Publications (1)

Publication Number Publication Date
US3667720A true US3667720A (en) 1972-06-06

Family

ID=25331629

Family Applications (1)

Application Number Title Priority Date Filing Date
US859757A Expired - Lifetime US3667720A (en) 1969-09-22 1969-09-22 Tie rod configuration for sealing the threaded inner end of a shebolt

Country Status (4)

Country Link
US (1) US3667720A (ja)
JP (1) JPS4929860B1 (ja)
DE (1) DE2045538C3 (ja)
GB (1) GB1304240A (ja)

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3830461A (en) * 1972-10-31 1974-08-20 C Williams Inner tie rod for securing wall forms
US3933332A (en) * 1974-01-14 1976-01-20 Tullio E. Lovisa Self-sealing tie assembly for erecting concrete forms
WO1983002489A1 (en) * 1982-01-15 1983-07-21 Proni Ind Inc Unitary clamp action fitting
US20110272556A1 (en) * 2010-05-07 2011-11-10 Lei Mei Lin Fastener device for wall construction
CN103061505A (zh) * 2013-01-14 2013-04-24 河北省第四建筑工程公司 一种多功能对拉螺栓及其用途
CN105971278A (zh) * 2016-07-01 2016-09-28 天津二建建筑工程有限公司第三分公司 一种建筑业用可拆装模板对拉紧固杆
US20200032532A1 (en) * 2017-04-06 2020-01-30 Ulma C Y E, S. Coop. Vertical formwork and an anchor for a vertical form work
US10683671B2 (en) * 2017-04-06 2020-06-16 Ulma C Y E, S. Coop. Vertical formwork with tie rod and tie rod anchor
US11047144B2 (en) * 2017-04-06 2021-06-29 Ulma C Y E, S. Coop. Vertical formwork and an anchor for a vertical form work

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5185655U (ja) * 1974-12-27 1976-07-09
FR2630151B1 (fr) * 1988-04-19 1990-08-24 Devin Lemarchand Entreprise Procede d'edification de chateaux d'eau a parois inclinees et moyens pour la mise en oeuvre du procede

Cited By (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3830461A (en) * 1972-10-31 1974-08-20 C Williams Inner tie rod for securing wall forms
US3933332A (en) * 1974-01-14 1976-01-20 Tullio E. Lovisa Self-sealing tie assembly for erecting concrete forms
WO1983002489A1 (en) * 1982-01-15 1983-07-21 Proni Ind Inc Unitary clamp action fitting
US4544186A (en) * 1982-01-15 1985-10-01 Proni Industries, Inc. Unitary clamp action fitting
US20110272556A1 (en) * 2010-05-07 2011-11-10 Lei Mei Lin Fastener device for wall construction
US8348222B2 (en) * 2010-05-07 2013-01-08 Li Mei Lin Fastener device for securing spaced mold boards
CN103061505A (zh) * 2013-01-14 2013-04-24 河北省第四建筑工程公司 一种多功能对拉螺栓及其用途
CN103061505B (zh) * 2013-01-14 2015-07-29 河北省第四建筑工程有限公司 一种多功能对拉螺栓及其用途
CN105971278A (zh) * 2016-07-01 2016-09-28 天津二建建筑工程有限公司第三分公司 一种建筑业用可拆装模板对拉紧固杆
US20200032532A1 (en) * 2017-04-06 2020-01-30 Ulma C Y E, S. Coop. Vertical formwork and an anchor for a vertical form work
US10683671B2 (en) * 2017-04-06 2020-06-16 Ulma C Y E, S. Coop. Vertical formwork with tie rod and tie rod anchor
US10808413B2 (en) * 2017-04-06 2020-10-20 Ulma C Y E, S. Coop. Vertical formwork and an anchor for a vertical form work
US11047144B2 (en) * 2017-04-06 2021-06-29 Ulma C Y E, S. Coop. Vertical formwork and an anchor for a vertical form work

Also Published As

Publication number Publication date
DE2045538A1 (de) 1971-04-01
DE2045538C3 (de) 1980-07-17
GB1304240A (ja) 1973-01-24
JPS4929860B1 (ja) 1974-08-08
DE2045538B2 (de) 1979-11-08

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AS Assignment

Owner name: WILLIAMS FORM ENGINEERING CORPORATION, A MI CORP.

Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNOR:WILLIAMS, MABEL MARIE, PERSONAL REPRESENTATIVE OF THE ESTATE OF C. I. WILLIAMS, DEC D.;REEL/FRAME:005001/0009

Effective date: 19881219