TWM521115U - Steel nail with dual threads of different direction - Google Patents

Description

Steel nail with double anisotropic threads

The present invention relates to a steel nail, in particular to a steel nail having double anisotropic threads.

A nail generally used for fixing an object generally has a vertical body and a pointed end and a wide end end respectively connected to the ends of the body. The surface of the body is generally smooth, but this The nails are used for the fixing of the wooden board, such as the decoration, and the nail body is easy to be insufficient due to the fixing force. Under the stress of the wooden board, it is easy to slide relative to the wooden board, and the phenomenon of loosening on the wooden board is gradually followed. The body is modified to increase the nail's ability to fix.

Referring to FIG. 1, a conventional nail includes a nail body 61, a tapered portion 62, and a head portion 63. A plurality of body barb recesses 611 are formed on the surface of the nail body 61, and a plurality of the surface of the tapered portion 62 are formed on the surface of the tapered portion 62. The conical barb recess 621, by the recessed structure of the stud barb recess 611 and the taper barb recess 621, can increase the fixing ability of the nail, but due to the stud barb recess 611 and The taper barb recesses 621 occupy only a small portion of the surface of the body 61 and the taper portion 62. However, most of the surfaces of the body 61 and the taper portion 62 are still smooth surfaces, thus increasing The effect of fixing ability is limited.

Referring to FIG. 2, a conventional splint pin comprises a nail body 7 including a spike portion 71, a sharp head end 72 formed on one side of the spike portion 71, and a a conical convex ring 73 on the other side of the spike section 71, the surface of the spike section 71 is covered with a spiral structure, thereby making the surface of the conventional splint bundle nail occupy less area, and by the length The spiral structure of the surface of the nail segment 71 is fixed to an object (not shown) through a fixed object to reach a screw-locking state, but the spiral structure of the spike segment 71 is a single direction, so when the When the fixture is subjected to vibration, the conventional splint bundle is easily spun out in the direction of the spiral structure, losing its fixed function.

Therefore, the object of the present invention is to provide a steel nail which is not easily spun out due to vibration and has a better nailing ability.

Thus, the present invention has a double-biased threaded steel stud comprising a stop end and a body portion connecting the stop end. The surface of the body portion includes a first threaded region and a second threaded region. The first threaded region is formed with a first thread, and the second threaded region is formed with a second thread, the first thread having a spiral direction opposite to a spiral direction of the second thread.

The utility model has the advantages that: compared with the smooth body, the nail body is designed by the first thread and the second thread, thereby greatly increasing the area of the surface relief structure, thereby effectively improving the relationship between the nail and the nail. The consolidation ability, and the first thread and the second thread spiral in opposite directions, resisting an external force that causes the steel nail to be screwed out of the nail in two spiral directions, so that the nail is capable of nailing better.

Before the present invention is described in detail, it should be noted that in the following description, similar elements are denoted by the same reference numerals.

Referring to Fig. 3, a first embodiment of the present invention has a double-antenna threaded steel nail, comprising a stop end portion 1, and a body portion 2 connecting the stop end portion 1. The end portion of the body portion 2 away from the stopping end portion 1 has a pointed shape. The surface of the body portion 2 includes a first threaded portion 21 and a second threaded portion 22. The first threaded zone 21 and the second threaded zone 22 are both toroidal, and the first threaded zone 21 and the second threaded zone 22 are connected to each other. The first threaded zone 21 has a first thread 211 and the second threaded zone has a second thread 221. The spiral direction of the first thread 211 is opposite to the spiral direction of the second thread 221.

Referring to FIG. 4, the body portion 2 passes through a pointed end of one of the fixed portions 3 and enters the inside of an object 4 until the blocked end portion 1 is stopped by the fixed member 3 opposite to the object. The action of stopping the entry at the surface of 4 is to fix the fixed member 3 to the article 4. During the nailing process, the inside of the fixed member 3 and the object 4 are first squeezed by the body portion 2, and then retracted toward the body portion 2 to cover the body. Department 2. Since the surface of the body portion 2 is covered with the first thread 211 and the second thread 221 which are undulating and undulating, a clamping force can be generated between the fixed portion 3 and the object 4, so that the body portion 2 is Not easy to fall off. In addition, since the first thread 211 and the second thread 221 have opposite spiral directions, when the steel nail having the double-antenna thread is subjected to vibration and is intended to be unscrewed in the direction of the first thread 211, The second thread 221 is resisted, causing it to stop the action of unscrewing, and vice versa.

Referring to FIG. 5, a second embodiment of the present invention has a double-antenna threaded steel nail. The second embodiment differs from the first embodiment in that the first threaded region 21 further has a plurality of depressions formed in the first thread 211. And spaced apart ribs 212. The second threaded zone 22 also has a plurality of spaced apart ribs 222 formed in the recesses of the second thread 221. However, the ribs 212 and 222 can further increase the resistance between the surface of the body portion 2 and the fixed member 3 and the object member 4, thereby further improving the nailing ability of the steel nail having the double-biased thread.

In summary, the steel nail with double-biased threads is designed by the first thread 211 and the second thread 221 to greatly increase the area of the surface relief structure, thereby greatly increasing the fixation. The resistance between the member 3 and the object 4, and the spiral direction of the first thread 211 and the second thread 221 are opposite to each other to form a balance check effect, so that the nail of the novel double-antenna thread is more capable of nailing. Well, it is not easy to spin out due to vibration, so it can achieve the purpose of this new type.

However, the above is only the embodiment of the present invention, and when it is not possible to limit the scope of the present invention, all the simple equivalent changes and modifications according to the scope of the patent application and the contents of the patent specification are still This new patent covers the scope.

1‧‧‧stop end
2‧‧‧nail body
21‧‧‧First thread zone
211‧‧‧First thread
212‧‧‧ rib
22‧‧‧Second threaded zone
221‧‧‧second thread
222‧‧‧ ribs

Other features and effects of the present invention will be apparent from the following description of the drawings, wherein: Figure 1 is a perspective view of a conventional nail; Figure 2 is a perspective view of a conventional splint staple; Figure 3 is a A perspective view of a first embodiment of a new type of steel nail with double-biased threads; FIG. 4 is a schematic view showing the first embodiment of a fixed piece clamped to an object; and FIG. 5 is a double A perspective view of a second embodiment of a stapled steel nail.

1‧‧‧stop end

2‧‧‧nail body

21‧‧‧First threaded part

211‧‧‧First thread

22‧‧‧Second threaded zone

221‧‧‧second thread

Claims (5)

A steel nail having double anisotropic threads, comprising: a stopping end portion; and a nail body portion connecting the stopping end portion, the surface of the nail body portion comprising a first threaded portion and a second threaded portion The first threaded region is formed with a first thread, and the second threaded region is formed with a second thread. The first thread has a spiral direction opposite to a spiral direction of the second thread. The steel nail having double anisotropic threads according to claim 1, wherein the first threaded region further has a plurality of spaced apart ribs formed at the recess of the first thread. The steel nail having double anisotropic threads according to claim 2, wherein the second threaded region further has a plurality of spaced apart ribs formed at the recess of the second thread. The steel stud having double anisotropic threads according to any one of claims 1 to 3, wherein the first threaded zone and the second threaded zone are toroidal. A steel stud having a double anisotropic thread as claimed in claim 4, wherein the first threaded zone is connected to the second threaded zone.