CN2051308U - Nail - Google Patents

Abstract

The utility model discloses a nail, belonging to fixing member. The structure of the nail is that the nail rod of an ordinary nail is provided with longitudinal grooves, and the grooves are four-strip grooves or arc grooves which are distributed uniformly in general to form a groove nail with light weight and few materials. With the same usage as ordinary nails, the utility model is mainly used for woodwork, and other hanging and connections.

Description

Nail

Nail of the present utility model belongs to fixed component, is that the nail bar at general nail has cannelure, forms wooden peg, cement nail etc.

Existing nail all is made up of nail point, the ailhead at nail bar that is connected as a single entity and two ends, and the nail bar is circular or square.Nail bar cross section is bigger, and materials are many, and are heavier.Outer surface and fastening surface of contact are less, and surface friction drag is less.Particularly use more round bar nail, circumferentially fixed effect is poor, easily rotates.

The purpose of this utility model is to provide the nail of the new structure that a kind of weight is light, materials are less, connection is more firm.

Nail of the present utility model still is made up of the nail point of a nail bar that is connected as a single entity and an end, the ailhead of the other end.Its structural feature be the nail bar vertically have a groove, make the nail bar have cannelure, form flute profile nail bar., ailhead sharp by flute profile nail bar and nail formed the flute profile nail.Groove reduces the nail rod area, reduces materials, nail weight saving.Groove increases non-circularity, has increased to connect circumferential rotational resistance.The curvature of groove is during greater than former outer rim curvature, and it is long-pending to increase the nail rod outer surface, increases to connect surface friction drag.

The groove of nail bar is preferably four uniform grooves.Can not change the manufacturing process and the equipment of system nail like this, only on original equipment, increase the flute profile wire drawing die, advance a guide plate, anchor clamps, can produce nail of the present utility model.And a groove, two grooves, during use easily to certain direction bending.Article three, groove also will change over former four directions three directions and cut point to cutting point during making, otherwise the nail of making point guiding be askew partially.Article five, and five above grooves, nail weight and materials reduce not obvious, and are than weight, the materials of four grooves more.Groove can be multiple shape, but groove curve bath preferably, and be difficult for making the groove that has pointed shape, and make the groove transitionality good, make the mould of system nail, anchor clamps, guide block etc. are not easy to wear bad.

Nail of the present utility model is compared with existing nail: during equal external diameter, these nail materials are less, and weight is lighter, uses this nail can save a large amount of steel in a large number; During equivalent weight, amount of deformation was big when the nail bar was manufactured, and the flow harden effect strengthens, and nail bar external diameter increases, and resistance to flexure increases; This nail connects surface friction drag to be increased, and circumferentially rotational resistance increases, thereby has strengthened the soundness that nail connects.

In the accompanying drawing, Fig. 1 has represented a kind of structural representation of the utility model nail.Fig. 2,3,4,5 has represented four kinds of different slots staple bar viewgraph of cross-section.

Further specify nail of the present utility model below in conjunction with accompanying drawing.This nail that accompanying drawing is represented is made up of the four ribs nail point 4 of nail bar 2 that has four straight troughs 3 and one end, the rounded head 1 of the other end, and nail bar, nail point, ailhead are one.Nail bar external diameter is concyclic.Article four, groove 3 is along circumferentially uniform, and flute profile is a kind of in shown in Fig. 2,3,4,5.This kind four groove nails are compared with existing nail, are example with the four groove nails of curve baths of Fig. 1,2 expressions, and weight can alleviate 30%, saves steel 30%.One ton of steel can be made 42.86% nail more, increases by 30% income.

Claims (3)

1, nail is made up of the nail point of a nail bar that is connected as a single entity and an end, the ailhead of the other end, it is characterized in that following closely bar and has cannelure.

2,, it is characterized in that groove is four uniform grooves as the said nail of claim 1.

3,, it is characterized in that groove is a curve bath as claim 1 or 2 said nails.