TWM547607U - Screw structure - Google Patents

Description

Screw structure

The present invention relates to a screw structure, in particular to a cutting edge provided between a screw taper portion and a threaded portion, and the cutting edge can assist the screw to remove the chip when the wood board is locked, so that the wood board cannot be excluded due to chipping. The structure of the screw that caused the rupture.

The conventional screw, as shown in the first figure, includes a screw head 31, and a rod body 32 extending downward from the screw head 31. The outer circumference of the rod body 32 is provided with a screw-around outer thread 33, and the rod body 32 is below the rod body 32. A pointed tail portion 34 is provided at the end.

When the screw is locked, the pointed tail portion 34 is first pressed against the surface of the workpiece, and then the power tool or the hand tool is biased by the screw head 31 to rotate the screw and is screwed into the workpiece by the pointed tail portion 34.

However, the disadvantages of conventional screws are as follows: (1) Screws are screwed to workpieces such as wood materials, etc., and chips are generated during the screw lock process, but the conventional screws do not have a structure for removing chips, which causes the chips to be along the outside of the screws. The thread 33 gradually accumulates within the tooth distance, and when accumulated excessively, the board may be broken. (2) Because the screw does not remove the chips during the screw lock, the more the screw goes deeper into the board, the more laborious it is.

The main purpose of the present invention is to provide a screw structure which can be smoothly screwed into an object such as wood, has a high screwing speed and is labor-saving, and shortens the time for locking the object, and further, the screw is screwed into the object. The chips generated during the process can be smoothly removed to reduce the frictional resistance.

The structure capable of achieving the above object comprises: a rod body having a top portion at an upper end thereof and a tapered neck portion below the top portion, the neck portion having a non-reverse portion having a tapered shape under the rod body a screwing portion, the screwing portion is provided with a threaded portion around the rod body; wherein the threaded portion has a first tooth and a second tooth, and two sets of relative settings are arranged between the first and second teeth Cutting edge.

In the above embodiment, the threaded section has a root and a crest, the largest outer diameter of the cutting edge being the same as the diameter of the crest.

In the above embodiment, the threaded section of the rod body and the neck portion are provided with a long strip-shaped check portion which is oblique to the longitudinal axis of the rod body.

In the above embodiment, the cutting edge has a straight strip shape.

In the above embodiment, one side end of the cutting edge is ground through the implement by a cutting angle.

In the above embodiment, the passing tool of the cutting edge grinds a relative cutting angle.

Through the above structure, the advantages of the creation can be as follows: (1) The lock cooperation industry is labor-saving: when the lock is engaged, the workpiece is drilled through the cutting edge, and the chips are discharged through the bottom of the intermediate thread segment to reduce the resistance in the locking direction. This makes the operation of the screw more labor-saving. (2) Preventing the breakage of the workpiece: In the above-mentioned lock cooperation industry, the chips are continuously removed from the bottom of the thread segment to prevent the chips from accumulating in the workpiece, causing the workpiece to locally expand and rupture. (3) Preventing the screw from reversing after the screw is screwed in: The anti-reverse part provided on the rod body can block the screw when the screw is screwed into the workpiece, preventing the screw from easily coming off the workpiece and increasing the structural strength when the workpiece is combined.

In order to enable your review committee to have a better understanding and recognition of the characteristics and characteristics of this creation, the following preferred examples are listed below with the following description:

Referring to the second to tenth drawings, the present screw structure 100 has a rod body 10, and a top portion 11 and a threaded portion 14 are disposed on the rod body 10.

Referring to the second to fourth figures, the top end of the top portion 11 is concavely provided with a rotating portion (not shown), and the rotating portion provides a hand tool or a power tool, and the top portion 11 has a tapered neck portion 111 below. The neck portion 111 has a check portion 12 radially arranged from the center. When the present screw structure 100 is screwed into the workpiece, a blocking effect is formed through the check portion 12 to prevent the screw structure 100 from being reversed and screwed out of the workpiece.

Referring to the second to fourth figures, a tapered screwing portion 13 is disposed under the rod body 10. The screwing portion 13 is provided with a threaded portion 14 around the rod body 10 upwardly. The thread portion 14 defines a crest. D1 and the bottom D2, the threaded section 14 has a first tooth 141 and a second tooth 142, and two sets of oppositely disposed cutting edges 15 are disposed between the teeth of the first tooth 141 and the second tooth 142, the cutting edge The largest outer diameter of 15 is the same as the diameter of the crest D1.

Please refer to the second to fourth figures to illustrate the use of the present invention. The user inserts the rotating part through a hand tool or a power tool. The screwing portion 13 gradually penetrates into the workpiece and is drilled into the workpiece through the cutting edge 15. The chip passes through the bottom D2 of the thread segment 14 to prevent the workpiece from being broken due to the continuous accumulation of chips; when the creation is completely locked, the anti-reverse portion 12 is pressed against the outer edge of the workpiece to prevent the creation screw. The structure 100 is reversed to cause detachment, and therefore, the strength of the overall structure can be enhanced when the screw structure 100 of the present invention is locked to the workpiece.

Referring to the second and third figures, the threaded section 14 of the rod body 10 and the neck portion 111 are provided with a long strip-shaped check portion 12 which is oblique to the long axis of the shaft 10 or a spiral The portion 12 can achieve a two-stage non-reversal function to prevent the screw structure 100 from being easily screwed out of the workpiece, thereby improving the anti-reverse effect of the screw structure 100.

Referring to Figures 5 and 6, the cutting edge 15 of the present invention can be machined to form two straight strip-like structures.

Referring to the seventh and eighth figures, one side of the cutting edge 15 of the present invention is ground to a cutting angle by the implement. In this state, when drilling into the workpiece, the efficiency of drilling the workpiece can be improved, and the locking operation is smoother and smoother.

Please refer to the ninth and tenth drawings. The machining of this creation forms a grinding angle of symmetrical relative to the cutting angle. In this state, when the workpiece is drilled, the cutting edge 15 is drilled as if the boring cutter cuts a smooth hole, and in this state, the threaded section 14 can be flattened on the wall surface of the hole to increase the locking force. At the same time, it provides the advantages of smoother and smoother locking work.

In summary, the creation structure has not been seen in the publications or public use, and it is in line with the requirements of the new patent application, so please ask the Bureau to make a patent, and grant the patent as soon as possible.

The above description is only for the preferred embodiment provided by the present invention, and is not intended to limit the scope of implementation of the present invention. All of the relevant artisans in the art are equally varied according to the present creation, and should belong to the present invention. The scope of coverage.

"This creation"
100‧‧‧ screw structure
10‧‧‧ rod body
11‧‧‧ top
111‧‧‧ neck
12‧‧‧Front
13‧‧‧Driving Department
14‧‧‧Threaded section
141‧‧‧ first tooth
142‧‧‧second tooth
15‧‧‧ cutting edge
D1‧‧‧
D2‧‧‧Dental "Knowledge"
31‧‧‧ screw head
32‧‧‧ rod body
33‧‧‧ External thread
34‧‧‧ pointed tail

The first picture shows the structure of the conventional screw. The second picture is a perspective view of the structure of the creation. The third picture is the state diagram (1) used in this creation. The fourth figure is another implementation state diagram of the non-return portion. The fifth figure is an enlarged view of the structure of the cutting edge (1). The sixth figure is a bottom view of the structure of the fifth figure. The seventh figure is an enlarged view of the structure of the cutting edge (2). The eighth figure is a bottom view of the structure of the seventh figure. The ninth figure is an enlarged view of the structure of the cutting edge (3). The tenth figure is a bottom view of the structure of the ninth figure.

100‧‧‧ screw structure

10‧‧‧ rod body

11‧‧‧ top

111‧‧‧ neck

12‧‧‧Front

13‧‧‧Driving Department

14‧‧‧Threaded section

141‧‧‧ first tooth

142‧‧‧second tooth

15‧‧‧ cutting edge

Claims (6)

A screw structure includes: a rod body having a top portion at an upper end thereof, a tapered neck portion below the top portion, the neck portion having a non-return portion having a tapered screw-in portion below the rod body The screwing portion is provided with a threaded section around the rod body; the threaded section has a first tooth and a second tooth, and two sets of opposite cutting edges are disposed between the first and second teeth. . The screw structure of claim 1, wherein the thread segment has a root and a crest, the maximum outer diameter of the cutting edge being the same as the diameter of the crest. The screw structure according to the first aspect of the invention, wherein the threaded section of the rod body and the neck portion are provided with a long strip-shaped inversion portion which is oblique to the longitudinal axis of the rod body. The screw structure according to claim 1, wherein the cutting edge is a straight strip structure. The screw structure according to claim 1, wherein one of the cutting edges of the cutting edge is ground by a tool to cut a cutting angle. The screw structure according to claim 1, wherein the cutting tool of the cutting edge grinds a relative cutting angle.