JP3085291U - Nail seat for expansion screw nail - Google Patents

Abstract

(57) [Summary] [PROBLEMS] To provide a nail seat of an expansion screw nail which is easy to assemble while reducing manufacturing cost. SOLUTION: In front of a nail seat formed by winding one piece, 2
Two slots are provided, a slightly elongated hole is provided in the middle part, and a slightly equidistant cutting line is provided in the lower part of the nail seat,
In addition, a small segment is provided, and an upper circular piece and a lower circular piece having a through hole are provided on the upper edge of the previous stage, a fitting contact step is formed at the bottom of the upper circular piece, and the upper circular piece is fitted above the lower circular piece. A contact groove is provided, and when the piece is wound into a nail seat, the lower segment is folded outward to form a bottom cover, and the fitting contact groove of the lower circular piece engages with the upper circular piece. The upper cover is formed by being fitted in the step, and the screw nail is accommodated in the nail seat, and the design of the upper and lower circular pieces effectively saves the raw material and the manufacturing cost.

Description

[Detailed description of the invention]

[0001]

[Technical field to which the invention belongs]

 The present invention relates to a nail seat for an expansion screw nail, and more particularly to a nail seat for an expansion screw nail which is easy to assemble and reduces manufacturing cost.

[0002]

[Prior art]

 Illustrated in FIG. 1 is the construction of a nail 10 of a well-known inflatable screw nail, in which a nut 11 is welded to a front edge 122 of the nail seat body 12 and a slightly elongated strip is formed in a middle portion 124 of the nail seat body 12. A hole 121 is provided, and the bottom cover 13 is separately welded to the tail end 123 of the nail seat body 12. With this structure, a bolt or a screw nail is inserted from the bottom cover 13 and screwed with the nut 11 of the nail seat 10 of the expansion screw nail, and the expansion screw nail 1 is put into the nail puller gun at the time of use, and the pulling operation of the nail puller gun is performed. As a result, the nail seat 12 is pulled to forcibly deform the middle portion 124 having the elongated hole 121 to expand and deform outward, thereby forming a fixed connection. Manufacturing of the nail seat 10 of such a well-known expansion screw nail requires welding the nut 11 and the bottom cover 13 to the front edge 122 and the tail end 123 of the nail seat body 12, respectively, and therefore the manufacturing cost is high. In addition, it takes time and effort, and when it is expanded and deformed outward by pulling, the front edge 122 of the nail seat 10 tends to explode due to insufficient strength.

[0003]

[Problems to be solved by the invention]

 The purpose of the present invention is to provide a kind of nail structure of an inflatable screw nail which can reduce the manufacturing cost, which has a through hole at the upper edge of the front part of the nail seat formed by winding one piece. The upper and lower circular pieces are provided, and the lower and upper circular pieces are fitted to form an upper lid. And achieve cost savings.

Another object of the present invention is to provide a nail seat for an inflatable screw nail which is convenient for assembling and has high production efficiency.

[0005]

[Means for Solving the Problems]

 The invention according to claim 1 has a nail seat formed by winding one piece, a slightly elongated hole is provided in a middle portion of the nail seat, and a slightly equidistant cutting line is provided in a lower portion of the nail seat. In addition, in a nail seat of an inflatable screw nail in which a few pieces are formed, an upper circular piece having a through hole and a lower circular piece provided with a through hole are provided at an upper edge of a front stage of the piece, and a bottom portion of the upper circular piece is provided. A groove is formed above the lower circular piece, and one connecting cut is formed inside each of the upper and lower circular pieces, so that the upper circular piece and the lower circular piece fit together. The connecting cuts corresponding to each other of the upper lid formed as one screw introduction port are used for introduction of the screw thread of the screw nail, and when the single body is wound into a nail seat, each of the lower row The segment is bent outward to form a bottom lid, the fitting groove of the lower circular piece is fitted in the fitting step of the upper circular piece to form the upper lid, and thus the screw seat is inside the nail seat. Offered for containment A nail seat for an expansion screw nail, characterized in that: The nail of the expansion screw nail according to claim 1, wherein the connecting cut has an arcuate cut shape. According to a third aspect of the present invention, there is provided an oblique cutting knife having an edge portion between the upper and lower circular pieces and having an oblique chamfered shape, and the single body is formed in a nail seat. The nail seat of an inflatable screw nail according to claim 1, wherein when the piece and the lower circular piece are fitted to each other to form an upper lid, the oblique cutting knife is located on one side of the upper lid. According to a fourth aspect of the present invention, a pointed knife is formed at the upper end of the upper circular piece, and a pointed knife is formed at both sides of the fitting groove of the lower circular piece, and the piece is wound to form a nail seat. 2. The expansion screw nail according to claim 1, wherein the pointed knives are folded upwards and correspond to each other when they are turned, and the pointed knives are directly provided for perforation with respect to the plate wall. Nails. The invention according to claim 5 is characterized in that two correspondingly projecting beveling knives are provided on the upper edge of the piece, and these beveled knives are provided for direct perforation into the construction plate wall. The nail seat of an inflatable screw nail according to claim 1, wherein The invention according to claim 6 is characterized in that a convex edge is formed on the upper circular piece, and the convex edge has a female screw step, and when the piece is wound to form a nail seat, the bolt is inserted into the nail seat. The nail seat of the expansion screw nail according to claim 1, wherein the nail seat is provided for screwing. The expansion screw according to claim 6, wherein a slight edge portion is formed on an upper edge of the convex edge, and the edge portion is directly provided for a perforation with respect to a wall of a construction plate. Nails of nails. The invention according to claim 8 is characterized in that two intersecting oblique lines are provided at the lower part of the nail seat of the nail seat, and are divided into two pieces having a pointed convex piece and one central piece. The nail seat of an inflatable screw nail according to claim 1, wherein when the body is wound to form a nail seat, each pointed convex piece is folded upward along a fold line.

[0006]

[Embodiment of the invention]

 As shown in FIG. 2, FIG. 3 and FIG. 4, the present invention includes a nail seat 20 formed by winding one piece 2, and a slight elongated hole 221 is provided in the middle step 22 of the nail seat 20. The lower stage 23 of the nail seat 20 is provided with a cutting line 232 at a slightly equal distance, and the nail seat of the inflatable screw nail in which a few pieces 231 are formed. The upper circular piece 25 and the lower circular piece 26 having the openings 251 and 261 are provided, and the connecting cutouts 252 and 262 are provided inside the upper circular piece 25 and the lower circular piece 26, respectively. Is provided with a fitting step 253, a fitting groove 263 is formed above the lower circular piece 26, and the upper circular piece 25 and the lower circular piece 26 can be fitted to each other.

As a result, when the piece 2 is wound into the nail seat 20, the segment 231 of the lower step 23 is folded outward to form the bottom cover 230, and the fitting groove 263 of the lower circular piece 26 is raised. An upper lid 27 is formed by being fitted to the fitting step 253 of the circular piece 25, and a screw nail 31 is accommodated in the nail seat 20, and the upper lid 25 is formed by fitting the upper circular piece 25 and the lower circular piece 26 together. The mutually corresponding connecting cuts 252, 262 just form the thread inlet 28 and introduce the thread 311 of the thread of the screw nail 31.

FIGS. 5 and 6 are operation display diagrams of the present invention. After the bottom cover 23 of the nail seat 20 is pressed against the outside of the work plate wall W1, the screw nail 31 is further pulled backward by a nail removing tool, and the middle step 22 of the elongated hole 221 of the nail seat 20 is forcibly removed. The joint is positioned by deforming and expanding in the direction (see Fig. 6).

FIGS. 7 and 8 are a perspective view and a development view of another embodiment of the present invention. It has a nail seat 40 wound around the piece 4, a slight elongated hole 421 is provided in the middle step 42 of the nail seat 40, and through holes 451 and 461 are provided at the upper edge of the upper step 41 of the piece 4. An upper circular piece 45 and a lower circular piece 46 are provided, a fitting contact step 453 is formed at the bottom of the upper circular piece 45, a fitting contact groove 463 is formed above the lower circular piece 46, and the upper circular piece 45 and the lower The circular pieces 46 are fitted to each other to form an upper lid 47. At the inner edges of the upper circular piece 45 and the lower circular piece 46, a thread introduction port 48 composed of connecting cuts 452 and 462 is provided. An oblique knife 49 having an oblique chamfered shape with an edge portion 491 is formed between the upper circular piece 45 and the lower circular piece 46 in the upper row. , 432 ′ provided with two pointed convex pieces 4311, 4311 ′. 31 ′ and a center piece 433 are formed, and the piece 4 is wound into a nail seat 40, and the pointed convex pieces 4311 and 4311 ′ and the center piece 433 are folded outward along a folding line 434. When the bottom cover 430 is formed, the pointed convex pieces 4311 and 4311 'are further bent upward along the folding lines 435 and 435', and the structure shown in FIG. 7 is formed.

FIGS. 9 and 10 are a sectional view and an operation display diagram of another embodiment of the present invention, in which a screw 32 is screwed from a through hole of an upper cover 47 of a nail seat 40, and the nail seat 40 is inclined. After the construction plate wall W2 is cut with the knife 49, the bottom cover 430 is pressed against the construction plate wall W2 and pulled backward by the nail removal tool 32 to expand and deform the portion provided with the elongated hole 421 of the middle stage 42 of the nail seat. When pressing the inside of the construction board wall W2, the pointed convex pieces 4311 and 4311 'of the bottom cover 430 are further inserted into the outer surface of the construction board wall W2, and the effect of positioning and fixing the nail seat to the construction board wall is enhanced. I have.

FIGS. 11 and 12 show still another embodiment of the present invention, in which a sharp knife 551 is provided at the upper end of an upper circular piece 55 and both sides of a fitting groove 563 of a lower circular piece 56. Also, when pointed knives 564, 565 are provided and the piece 5 is wound to form the nail seat 50, the pointed knives 551, 565, 564 are folded upward and opposed to each other, and the screw 33 (See FIG. 13), and the pointed knives 551, 564, and 565 directly drill holes in the construction plate wall W3, and the bottom lid 540 of the nail seat 50 is pressed and connected to the outside of the construction plate wall W3. Further, the screw 33 is pulled rearward by the nail removing tool, and the middle step 52 having the elongated hole 521 of the nail seat 50 is forcibly expanded and deformed outward to be connected and positioned (FIG. 14).

FIGS. 15 and 16 show still another embodiment (third embodiment) of the present invention, in which two corresponding projecting oblique lines are provided on the upper edge of the upper portion 61 of the piece 6. The cutting knives 611 and 612 are provided, and the piece 6 is wound to form the nail seat 60. The beveling knives 611 and 612 form a corresponding shape, and the beveling knives 611 and 612 directly face the construction plate wall. It is perforated and replaces the pointed knives 551, 564, 565 of the second embodiment described above.

Further, FIGS. 17 and 18 show a fourth embodiment of the present invention, in which a slightly elongated hole 721 is provided in the middle step 72 of the nail seat 70 around which the piece 7 is wound. The lower part 73 of the body 7 is provided with a slightly equidistant cutting line 732, and a small piece 731 is formed, and the upper circle of the upper part 71 of the piece 7 is provided with through holes 751, 761 at the upper edge thereof. A piece 75 and a lower circular piece 76 are formed, and a fitting contact step 752 and a fitting groove 762 that are fitted to and contact the upper circular piece 75 and the lower circular piece 76 are provided. The upper circular piece 75 is provided with a protruding edge 78, and the protruding edge 78 is provided with a female screw 781. When the piece 7 is wound into the nail seat 70, the corresponding piece 731 faces outward. The bottom cover 730 is formed by folding, and the bolt 34 is accommodated in the nail seat. The upper circular piece 75 and the lower circular piece 76 are fitted to each other to form the upper lid 77, which is used for screwing the bolt 34. (FIG. 19). After the bottom cover 730 of the nail seat 70 is press-fitted to the outside of the construction plate wall W4, the nail removing tool further pulls the bolt 34 and moves backward, forcing the nail seat 70 to have the elongated hole 721 of the nail seat 70. Is deformed and expanded outward to position the joint (FIG. 20). FIGS. 20 and 21 show another embodiment 5 of the present invention, in which two or more edge portions 882 are formed on the upper edge of the convex edge 88 of the upper circular piece 85, and the one piece 8 is formed. Is wound to form a nail seat 80, and the bolt 35 is further screwed in. The edge portion 882 directly drills a hole in the construction plate wall W5 (FIGS. 23 and 24).

[0014]

[Effect of the invention]

 The nail seat of the inflatable screw nail provided by the present invention lowers the manufacturing cost, is convenient for assembling, has more enhanced function and effect than known technology, and has the requirements for utility model registration. .

[Brief description of the drawings]

FIG. 1 is a development view of a known technique.

FIG. 2 is a perspective view of the present invention.

FIG. 3 is a partial cross-sectional view of the upper lid portion of the present invention.

FIG. 4 is a development view of the present invention.

FIG. 5 is an operation display diagram of the present invention.

FIG. 6 is an operation display diagram of the present invention.

FIG. 7 is a perspective view of the first embodiment of the present invention.

FIG. 8 is a development view of the first embodiment of the present invention.

FIG. 9 is an operation display diagram of the first embodiment of the present invention.

FIG. 10 is an operation display diagram of the first embodiment of the present invention.

FIG. 11 is a perspective view of a second embodiment of the present invention.

FIG. 12 is a development view of the second embodiment of the present invention.

FIG. 13 is an operation display diagram of the second embodiment of the present invention.

FIG. 14 is an operation display diagram of the second embodiment of the present invention.

FIG. 15 is a perspective view of a third embodiment of the present invention.

FIG. 16 is a development view of the third embodiment of the present invention.

FIG. 17 is a perspective view of a fourth preferred embodiment of the present invention.

FIG. 18 is a development view of the fourth embodiment of the present invention.

FIG. 19 is an operation display diagram of the fourth embodiment of the present invention.

FIG. 20 is an operation display diagram of the second embodiment of the present invention.

FIG. 21 is a perspective view of a fifth embodiment of the present invention.

FIG. 22 is a development view of a fifth embodiment of the present invention.

FIG. 23 is an operation display diagram of the fifth embodiment of the present invention.

FIG. 24 is an operation display diagram of a fifth embodiment of the present invention.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 10 Nail seat 11 Nut 12 Nail seat main body 121 Slot hole 122 Front edge 123 Tail end 124 Middle part 13 Bottom lid 14 Screw nail 20, 40, 50 Nail seat 60, 70, 80 Nail seat 2, 4, 5, 6, 7, 8 pieces 21, 41, 61 Upper stage 212 Upper edge 22, 42, 52, 72 Middle stage 221, 421, 521, 721 Slotted holes 23, 43, 73 Lower stage 232, 432, 732 Cutting line 230, 430, 540, 730 Bottom lid 231,731 segment 25,45,55,75,85 Upper circle 26,46,56,76 Lower circle 251,261,451,461 Through holes 431,431 'Segment 4311,4311' Pointed Convex piece 432 'Bevel line 433 Center segment 435, 435' Fold line 751, 761 Through hole 252, 262, 452, 462 Connected cut 752, 762 Connected cut 53, 453, 753 Fitting step 263, 463, 563, 763 Fitting groove 27, 47, 67 Top lid 28, 48 Thread introduction port 78, 88 Convex edge 49 Bevel cutting knife 491 Edge 781, 881 Female screw 882 Edge Part 551, 564, 565 Pointed knife 611, 612 Oblique cutting knife W1, W2, W3, W4, W5 Construction board wall 31, 32, 33 Screw nail 311 Screw 34, 35 Bolt

Claims (8)

[Utility model registration claims] 1. A nail seat formed by winding a single piece is provided, a slight elongated hole is provided in a middle portion of the nail seat, and a slightly equidistant cutting line is provided in a lower portion of the nail seat. In the nail seat of the inflatable screw nail in which a few pieces are formed, an upper circular piece and a lower circular piece having a through hole are provided at the upper edge of the front stage of the piece, and formed at the bottom of the upper circular piece. A fitting groove is formed above the lower circular piece, one connecting cut is formed inside the upper circular piece and the lower circular piece, and the upper lid formed by fitting the upper circular piece and the lower circular piece to each other. The corresponding articulated cut forms one thread entry and is used for the introduction of the thread of the screw nail, and when the piece is wound into a nail seat, each lower piece is folded outward. And the bottom lid is formed, the fitting groove of the lower circular piece is fitted to the fitting step of the upper circular piece to form the upper lid, and the inside of the nail seat is provided for accommodating the screw nail. To, nail seat of the expansion screw nails. 2. The nail seat for an inflatable screw nail according to claim 1, wherein said connecting cut has an arc cut shape. 3. An oblique cutting knife having an edge portion between the upper circular piece and the lower circular piece of the piece and presenting an oblique chamfer,
2. The knife according to claim 1, wherein the oblique cutting knife is located at one side of the upper lid when the upper and lower circular pieces are fitted to each other to form the upper lid. Nail seat for expansion screw nails. 4. A pointed knife is formed at an upper end of the upper circular piece, and a pointed knife is formed on both sides of a fitting groove of the lower circular piece.
When the piece is wound to form a nail seat, its pointed knife is folded upward and has a mutual correspondence, and the pointed knife is directly provided to the perforated plate wall. The nail seat of the inflatable screw nail according to claim 1. 5. The method according to claim 5, characterized in that the upper edge of the piece is provided with two correspondingly projecting beveling knives, which are provided for direct perforation to the working plate wall. Item 2. A nail seat of the expansion screw nail according to Item 1. 6. The upper circular piece is formed with a convex edge, and the convex edge has a female screw step, and is used for screwing a bolt into the nail seat when the piece is wound to form a nail seat. The nail seat of an inflatable screw nail according to claim 1, wherein the nail seat is formed. 7. The expansion screw nail according to claim 6, wherein a slight edge portion is formed at an upper edge of the convex edge, and the edge portion is directly provided for a perforation with respect to a construction wall. seat. 8. A lower part of the nail seat of the nail seat is provided with two intersecting oblique lines so as to be divided into two pieces having pointed convex pieces and one central piece, and one piece is formed. The nail seat of an expansion screw nail according to claim 1, wherein when the nail seat is formed by being wound, each pointed convex piece is folded upward along a fold line.