CN2750101Y

CN2750101Y - Nail for woodwork

Info

Publication number: CN2750101Y
Application number: CN 200420092081
Authority: CN
Inventors: 张志芬; 张振兴
Original assignee: Individual
Current assignee: Individual
Priority date: 2004-11-12
Filing date: 2004-11-12
Publication date: 2006-01-04
Anticipated expiration: 2014-11-12

Abstract

The utility model discloses a nail for woodwork. A main body of the nail is a nail stem 1 which is branched with two parallel sub nail stems 11. The inner side of the lower end head of each sub nail stem 11 is provided with a main tangent plane 2. Therefore, in the process that the nail stem 1 extends in, the nail heads of the sub nail stems 11 are driven by force from inside to outside to force the two sub nail stems 11 to be bent separately and in different directions. After the nail for woodwork of the utility model is punched in wood, twist blocking force is added besides frictional force, therefore the firmness of a combination part is improved.

Description

Carpenter's nail

Technical field:

The utility model relates to a kind of carpenter's nail.

Background technique:

Big top iron and screw nail or iron nail that present carpenter uses, nail is done and is single cylinder, the lower end that nail is done has 4 tangent planes that equally distributed area equates, forms ailhead, during use, along the dried woodenware connecting part of going deep into of external force direction nail, do peripheral and wooden frictional force by nail the connecting part is pegged, because wooden softer, it is less that nail is done peripheral and wooden frictional force, nail is easily loosening, and the connecting part soundness is poor.

The model utility content:

The purpose of this utility model be to provide a kind of nail is dried go deep into the woodenware connecting part after, nail is done the carpenter's nail that divides separately to bending, thereby makes connecting part soundness height.

The technical solution of the utility model is: this carpenter's nail main body is done for nail, and following closely dried bifurcated is that two son nails arranged side by side are done, and main tangent plane is established in the inboard of the lower end that each son nail is done.

The utility model carpenter's nail is after hammering into timber, be positioned at the inboard of the dried lower end of son nail because of main tangent plane, nail is done in stretching into process, the nail head that the son nail is done is subjected to the active force from the inboard to the lateral direction, two son nails are done to be divided separately to bending, outside frictional force, added the power of stumbling of turning round again, thereby the connecting part soundness is improved greatly.Because the two-way parted hair bending of energy, not only big but also pulling force obviously increases with the timber junction plane, and originally the weight of 2 cun carpenter's nails is 12 grams, adopts 1.2 cun carpenter's nails of the utility model just can meet or exceed the intensity of original 2 cun nails, its weight has only 4 grams, saves steel.

Description of drawings:

Fig. 1 is the carpenter's nail structural representation of prior art.

Fig. 2 is the utility model carpenter's nail structural representation.

Fig. 3 is that the utility model carpenter's nail uses schematic representation.

Embodiment:

As shown in Figure 1, it is single cylinder that the carpenter's nail of prior art, nail do 1, and the lower end of nail dried 1 has four tangent planes 2 that equally distributed area equates, forms ailhead.As Fig. 2, shown in Figure 3, the utility model carpenter's nail main body does 1 for nail, it is that two son nails dried 11 arranged side by side can bifurcated be that a plurality of equally distributed son nails do 11 also that nail is done 1 bifurcated, main tangent plane 2 is established in the inboard of the lower end of each son nail dried 11, main tangent plane 2 is meant the unique tangent plane of ailhead or the tangent plane of area maximum, thereby make nail do 1 in stretching into process, the son nail is done 11 nail head and is subjected to active force from the inboard to the lateral direction, makes two son nails do 11 and divides to bending separately.

Claims

1, a kind of carpenter's nail, main body is done for nail, it is characterized in that: it is that two son nails arranged side by side are done (11) that this nail is done (1) bifurcated, and each son nail is done the inboard of the lower end of (11) and established main tangent plane (2).