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A locking system and fastening elements

A technology for locking systems and fasteners, applied in the direction of locking fasteners, threaded fasteners, connecting components, etc.

Inactive Publication Date: 2009-08-12
NORD LOCK AB (SE)
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] It is of utmost importance to use the available tooth pattern as efficiently as possible to engage the nut or bolt, and for many applications it is also important to keep the maximum diameter extension of the fastening system substantially within the range of the hex nut or hex bolt within the maximum width of the head and to extend, maximize the surface under the nut / bolt head which transfers the load to the workpiece etc. through the washer arrangement, important features not provided by prior art techniques

Method used

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  • A locking system and fastening elements
  • A locking system and fastening elements
  • A locking system and fastening elements

Examples

Experimental program
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Embodiment Construction

[0017] exist figure 1 A prior art assembly is shown in , where locking washers 1 are provided in pairs for fastening bolts 2 as described above.

[0018] exist figure 2 , a fastener 3 according to the invention in the form of a nut 3' is arranged together with two washers 1 as part of a locking system, the nut being a hexagonal nut, and each washer is basically known with a central A hole (not shown), a first side 4 in the form of radially extending teeth 5 , a second side 6 in the form of a cam 7 .

[0019] The fastener 3, i.e. the nut 3', comprises a contact portion 8 extending from a hexagonal portion 9 of the fastener and providing an annular end face 10. Such as image 3 b, the contact portion has an outer diameter D substantially corresponding to the maximum width w of the hexagonal fastener portion, ie the distance between two diagonal corners 11, cf. figure 2 c.

[0020] According to a preferred embodiment in some cases, the diameter D is slightly larger th...

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Abstract

A locking system comprising a fastening element (3, 3'), the fastening element be- ing a hexagonal nut (3') or a hexagon-headed bolt, and a locking washer unit, a locking washer (1) having a central hole, a first side (4) comprising a pattern of ra- dially extending teeth (5) and a second side (6) comprising a pattern of radially ex- tending cams (7). The system is especially characterized in that the fastening element (3, 3') comprises a contact portion (8) extending from the hexagonal part (9) of the fastening element and providing an annular end surface of the hexagonal fastening element part, the contact portion having an outer diameter (D) substantially corresponding to the maximum width (w) of the hexagonal fastening element part. The invention also relates to a fastening element.

Description

technical field [0001] The invention relates to a locking system according to the preamble of claim 1 . [0002] The invention further relates to a fastener in the form of a nut or a bolt according to the preamble of claim 11 or 12, respectively. Background technique [0003] Locking systems and fasteners substantially of the type described above are previously known, wherein a washer for locking purposes has a central hole, a first side and a second side, the first side comprising a pattern of radially extending teeth, the second The sides include a pattern of radially extending cams for use with corresponding washers, cam pattern sides for facing and engaging each other, and tooth pattern sides for engagement with contact surfaces of fasteners such as The bottom surface of the bolt head or the bottom surface of the nut or the surface of the workpiece, etc. [0004] In this arrangement, the inclination of the primary cam surface exceeds the thread pitch of the fastener, w...

Claims

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Application Information

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IPC IPC(8): F16B39/24F16B35/06F16B37/00
CPCF16B39/282F16B39/24F16B35/06F16B37/00
Inventor 马蒂亚斯·安德森
Owner NORD LOCK AB (SE)