IT1261125B - Tightening bolt with accurate preloading and tightening procedure using such bolts - Google Patents

Tightening bolt with accurate preloading and tightening procedure using such bolts

Info

Publication number
IT1261125B
IT1261125B ITTO930878A ITTO930878A IT1261125B IT 1261125 B IT1261125 B IT 1261125B IT TO930878 A ITTO930878 A IT TO930878A IT TO930878 A ITTO930878 A IT TO930878A IT 1261125 B IT1261125 B IT 1261125B
Authority
IT
Italy
Prior art keywords
tightening
bolt
head
preloading
bolts
Prior art date
Application number
ITTO930878A
Other languages
Italian (it)
Inventor
Andrea Bazzurro
Original Assignee
Andrea Bazzurro
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
Application filed by Andrea Bazzurro filed Critical Andrea Bazzurro
Priority to ITTO930878A priority Critical patent/IT1261125B/en
Publication of ITTO930878A0 publication Critical patent/ITTO930878A0/en
Publication of ITTO930878A1 publication Critical patent/ITTO930878A1/en
Application granted granted Critical
Publication of IT1261125B publication Critical patent/IT1261125B/en

Links

Landscapes

  • Clamps And Clips (AREA)
  • Details Of Spanners, Wrenches, And Screw Drivers And Accessories (AREA)

Abstract

A tightening bolt with accurate preloading has a first threaded portion 1B adjacent to its free end and a second threaded portion 1A of greater diameter and lesser pitch adjacent to or corresponding to its head T. A ring 2 is screwed onto the portion of greater diameter and in the tightened condition this rests against one of the two members 3, 4 which are being connected. In this condition head T is at a distance from its supporting plane, so the friction between the head and the supporting plane does not affect the link between the tightening torque and the tension stress produced in bolt 1. Having then determined the amount of friction on the threads by partial tightening, it is possible to determine the final tightening torque so as to ensure that the bolt can be rotated through the necessary angle to ensure the desired preloading on the shank of the bolt. <IMAGE>
ITTO930878A 1993-11-23 1993-11-23 Tightening bolt with accurate preloading and tightening procedure using such bolts IT1261125B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
ITTO930878A IT1261125B (en) 1993-11-23 1993-11-23 Tightening bolt with accurate preloading and tightening procedure using such bolts

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
ITTO930878A IT1261125B (en) 1993-11-23 1993-11-23 Tightening bolt with accurate preloading and tightening procedure using such bolts

Publications (3)

Publication Number Publication Date
ITTO930878A0 ITTO930878A0 (en) 1993-11-23
ITTO930878A1 ITTO930878A1 (en) 1995-05-23
IT1261125B true IT1261125B (en) 1996-05-09

Family

ID=11411889

Family Applications (1)

Application Number Title Priority Date Filing Date
ITTO930878A IT1261125B (en) 1993-11-23 1993-11-23 Tightening bolt with accurate preloading and tightening procedure using such bolts

Country Status (1)

Country Link
IT (1) IT1261125B (en)

Also Published As

Publication number Publication date
ITTO930878A1 (en) 1995-05-23
ITTO930878A0 (en) 1993-11-23

Similar Documents

Publication Publication Date Title
ES2165128T3 (en) NUT AND DEVICE TO TIGHTEN AND LOOSE NUTS.
BRPI0500114A (en) Washer, washer fastener, method of securing objects and power tool for securing objects
SE8300542D0 (en) LASBAR NUTS
SE8303319D0 (en) DOUBLE WELDING WITH KILWORK
US4433605A (en) Fixture for string retainer of the strings
ES261768U (en) A slack-resisting bolt-and-nut
GB2066401A (en) A slack-resisting bolt
DE59104507D1 (en) Screw connection for connecting two spaced components, in particular sheets.
JPH1073118A (en) Bolt and nut
IT1261125B (en) Tightening bolt with accurate preloading and tightening procedure using such bolts
SE9100131D0 (en) Torque nuts or torque screws
GB2144819A (en) Torque adjustable locknut
DE3471997D1 (en) Device for connecting a pipe with a threaded pipe section
CA2331874A1 (en) Clamp for an external bone fixation device
CA1194906A (en) Clamping element for the releasable fastening of spatially arranged, or parallel bars, tubes and similar objects
DE60030510D1 (en) Anchoring device for concrete components or the like with an easy-to-use element for anchoring to the component
CA1245084A (en) Connector
CN2126344U (en) Shockproof anti-releasing screw fastener
SU1278504A1 (en) Self-locking threaded joint
JPH0577610U (en) Lock nut
SU624024A1 (en) Rope securing device
CA2053012A1 (en) Fixing means
KR920002194B1 (en) Clamping device
JPH08232930A (en) Coach screw
JPS6448949A (en) Joint for three-dimensional truss

Legal Events

Date Code Title Description
0001 Granted
TA Fee payment date (situation as of event date), data collected since 19931001

Effective date: 19971107