FASTENER TECHNOLOGY INNOVATOR
THNut - TSF Navarra de Técnicas de Soldadura Y Fijación, S.L. The TH Nut is a specific system for pulling joints together to guarantee 75% preload with less than 5% dispersion.
T
he innovatory aspect of the TH Nut comes as a result of the definition of the location of the contact zone, depending on the joint characteristics, to optimise the pressure
and the cone strength distribution. The advantages provided are:
• It can be designed as standard sized nuts and washers in different dimensions from M12 up to M115.
• It is suitable for assembly with standard pullers equipment.
• It is interesting for different industrial sectors including automotive, wind power, nuclear and others.
• It reduces the number of fastening elements with respect to torque control.
• Preload is quickly reached. • It ensures low dispersion. • High stability of the preload.
• Low load distribution factor for the fastening element. Lower fatigue range.
• Achieving preload through pressure tables. • Insensitivity to bending moments. • No twisting of the fixation element. • Ease of assembly and disassembly. • Simultaneous assembly of fastening elements. Elimination of elastic interaction of close elements.
• Same assembly protocol for all metric sizes. • Benefits of elongation, without the disadvantages of friction.
• Ease of verification of preload sustention. It enables maintenance, if necessary, based on accurate preload readings.
• Multiple reuse of the element. Ease preload reset by assembly process repetition.
• Insensitive to the type of thread or its lead due to the lack of friction in the tightening process. Potential increment of the preload capacity.
ATLM - IBW Ingenieurbuero Wolfgang Weiss
A threaded fastener joint incorporating the Advanced Thread Locking Mechanism (ATLM) provides a failsafe locked fastening device for quick installation and de-installation.
T
he ATLM uses a freewheel clutch that is securely installed in one of the two threaded members and detachably coupled with the engaged counterpart. While screwing the threaded members together, the freewheel will allow free mating including torqueing. Once the ATLM fastener is forced to unscrew through the occurrence of torque in the
undoing direction, the freewheel locks instantly. Disengaging the members of the threaded joint requires decoupling of the freewheel by an ejector, preferably implemented in the wrenching socket. Benefits from threaded fasteners equipped with ATLM include:
• In contrast to commonly known self-locking threaded fasteners with integrated locking feature, threaded members with ATLM mate free running, thus, torque values preset at the wrenching tool are not influenced by varying prevailing torque.
• ATLM fastener are instantly locking; i.e. no loss of preload. • No extra locking hardware or retaining compounds required. • ATLM fasteners produce stable retention (locking) torque with no limitation for the number of screw cycles. • Anti-friction coatings of threads have no influence on locking torque. • Locking of the threaded members takes place automatically – no assembly errors possible.
Joker - Wera Werk Hermann Werner GmbH & Co KG
The Joker offers a practical holding function that allows nuts and bolts to be held in the jaw and easily positioned where they are needed. Fastening on to the thread can then be done quickly and precisely.
U 78 6.N130
sers never need to worry about constantly re-positioning the wrench, holding fasteners in confined spaces, or easing off to avoid any risks of injury or fastener damage. The Joker prevents slipping off of the fastener head with its integrated limit-stop – no longer is the thumb needed to act as a depth stop. This makes things much easier, and allows significantly more force to be applied during fastening jobs.
The Joker’s double-hex geometry delivers a very positive connection with nuts or bolts. Also, the exchangeable, hardened
metal gripping plate in the Joker’s mouth literally bites itself into the bolt with its extremely hard tips. Both features combine to prevent any unpleasant slipping, even at higher torque. Where conventional wrenches with a 60° return travel
angle have to be turned over and over to tighten or loosen bolts and nuts in confined spaces, the Joker now offers a 30° return travel angle with a double-hex design. Along with the Joker’s straight neck, this means that flipping the wrench has become a thing of the past.
Fastener + Fixing Magazine • Issue 79 January 2013 8.Z54 4.B126
Page 1 |
Page 2 |
Page 3 |
Page 4 |
Page 5 |
Page 6 |
Page 7 |
Page 8 |
Page 9 |
Page 10 |
Page 11 |
Page 12 |
Page 13 |
Page 14 |
Page 15 |
Page 16 |
Page 17 |
Page 18 |
Page 19 |
Page 20 |
Page 21 |
Page 22 |
Page 23 |
Page 24 |
Page 25 |
Page 26 |
Page 27 |
Page 28 |
Page 29 |
Page 30 |
Page 31 |
Page 32 |
Page 33 |
Page 34 |
Page 35 |
Page 36 |
Page 37 |
Page 38 |
Page 39 |
Page 40 |
Page 41 |
Page 42 |
Page 43 |
Page 44 |
Page 45 |
Page 46 |
Page 47 |
Page 48 |
Page 49 |
Page 50 |
Page 51 |
Page 52 |
Page 53 |
Page 54 |
Page 55 |
Page 56 |
Page 57 |
Page 58 |
Page 59 |
Page 60 |
Page 61 |
Page 62 |
Page 63 |
Page 64 |
Page 65 |
Page 66 |
Page 67 |
Page 68 |
Page 69 |
Page 70 |
Page 71 |
Page 72 |
Page 73 |
Page 74 |
Page 75 |
Page 76 |
Page 77 |
Page 78 |
Page 79 |
Page 80 |
Page 81 |
Page 82 |
Page 83 |
Page 84 |
Page 85 |
Page 86 |
Page 87 |
Page 88 |
Page 89 |
Page 90 |
Page 91 |
Page 92 |
Page 93 |
Page 94 |
Page 95 |
Page 96 |
Page 97 |
Page 98 |
Page 99 |
Page 100 |
Page 101 |
Page 102 |
Page 103 |
Page 104 |
Page 105 |
Page 106 |
Page 107 |
Page 108 |
Page 109 |
Page 110 |
Page 111 |
Page 112 |
Page 113 |
Page 114 |
Page 115 |
Page 116 |
Page 117 |
Page 118 |
Page 119 |
Page 120 |
Page 121 |
Page 122 |
Page 123 |
Page 124 |
Page 125 |
Page 126 |
Page 127 |
Page 128 |
Page 129 |
Page 130 |
Page 131 |
Page 132 |
Page 133 |
Page 134 |
Page 135 |
Page 136 |
Page 137 |
Page 138 |
Page 139 |
Page 140 |
Page 141 |
Page 142 |
Page 143 |
Page 144 |
Page 145 |
Page 146 |
Page 147 |
Page 148 |
Page 149 |
Page 150 |
Page 151 |
Page 152 |
Page 153 |
Page 154 |
Page 155 |
Page 156 |
Page 157 |
Page 158 |
Page 159 |
Page 160 |
Page 161 |
Page 162 |
Page 163 |
Page 164 |
Page 165 |
Page 166 |
Page 167 |
Page 168 |
Page 169 |
Page 170 |
Page 171 |
Page 172 |
Page 173 |
Page 174 |
Page 175 |
Page 176 |
Page 177 |
Page 178 |
Page 179 |
Page 180