JP2011012766A - Fastening and fixing tool - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a fastening and fixing tool capable of being easily manufactured inexpensively and capable of preventing looseness, and capable of rotating a nut with the usage of a screwdriver and capable of easily fastening and fixing.SOLUTION: In the fastening and fixing tool including a bolt and the nut, the bolt 4 and the nut C can be attracted and fixed by magnetic force.

Description

  The present invention relates to a fastening fixture using bolts and nuts.

Conventionally, bolts and nuts are fastened and fixed to two parts by screwing and tightening screw holes of nuts that are screwed into screw threads of the bolts.
However, when the nut loosens due to vibration during use, the bolt and nut are tightened and fixed by welding, etc., or the bolt thread and nut screw hole are specially processed to prevent loosening. Bolts and nuts are used.
For this reason, bolts and nuts designed to prevent loosening are difficult to manufacture and have the disadvantage of increasing costs.

JP2007-92925A

  The present invention has been made in view of the above-described conventional drawbacks, and an object thereof is to provide a fastening fixture that is easy to manufacture and that can be manufactured at low cost and that can prevent loosening.

  Another object of the present invention is to provide a fastening fixture that can rotate a nut using a screwdriver and can be easily fastened and fixed.

  The above and other objects and novel features of the present invention will become more fully apparent when the following description is read in conjunction with the accompanying drawings.

  However, the drawings are for explanation only and do not limit the technical scope of the present invention.

  In order to achieve the above object, according to the present invention, a fastening fixture comprising a bolt and a nut is configured so that the bolt and the nut can be adsorbed and fixed by magnetic force.

As is clear from the above description, the present invention has the following effects.
(1) The nut can be screwed onto the bolt and fastened and fixed as in the conventional case, and the bolt and nut in the fastened and fixed state can be adsorbed and fixed by magnetic force.

Therefore, even if vibration occurs, the bolts and nuts are adsorbed and fixed by magnetic force, so that they can be efficiently prevented from loosening.
(2) According to the above (1), the bolt and the nut need only be able to be adsorbed and fixed by magnetic force, so that they can be manufactured easily and at low cost.
(3) In the second and third aspects, the same effects as in the above (1) and (2) can be obtained.
(4) Claim 4 can obtain the same effect as the above (1) and (2), and can be attached to or removed from the bolt by rotating the nut with a screwdriver.

Explanatory drawing of the use condition of the 1st form for implementing this invention. Sectional drawing which follows the 2-2 line of FIG. The disassembled perspective view of the 1st form for implementing this invention. The top view of the nut of the 1st form for carrying out the present invention. The side view of the nut of the 1st form for carrying out the present invention. Sectional drawing which follows the 6-6 line of FIG. Sectional drawing of the use condition of the 2nd form for implementing this invention. The disassembled perspective view of the 2nd form for implementing this invention. Explanatory drawing of the volt | bolt of the 2nd form for implementing this invention. Sectional drawing of the use condition of the 3rd form for implementing this invention. The disassembled perspective view of the 3rd form for implementing this invention. Sectional drawing of the use condition of the 4th form for implementing this invention. The disassembled perspective view of the 4th form for implementing this invention. Sectional drawing of the use condition of the 5th form for implementing this invention. The disassembled perspective view of the 5th form for implementing this invention. FIG.

  Hereinafter, the present invention will be described in detail with reference to the embodiments shown in the drawings.

  In the first embodiment for carrying out the present invention shown in FIG. 1 to FIG. 6, reference numeral 1 denotes a fastening fixture of the present invention for fastening and fixing two parts 2, 3 and the like. A bolt 4 formed of a magnetic material and a screw hole 6 screwed with a screw thread 5 of the bolt 4 are formed, and a nut that is magnetically attracted to the bolt 4 or is formed of a magnetic material. 7.

The nut 7 is formed with a cylindrical nut body 8 in which a screw hole 6 to be screwed with the screw thread 5 of the bolt 4 is formed, and a screw hole 6 or a bolt insertion hole integrally formed on the nut body 8. The cylindrical head portion 9 is formed, and a driver insertion concave portion 11 formed so that a + or-driver 10 can be inserted into the head portion 9.
As shown in FIGS. 1 and 2, the tightening fixture 1 having the above-described configuration inserts a bolt 4 into bolt insertion holes 2 a and 3 a formed in two parts 2 and 3, The screw hole 6 of the nut 7 is screwed together, and the driver 10 is inserted into the driver insertion recess 11 of the nut 7 and is rotated and fixed.

At this time, even if the nut 7 is magnetized or formed of a magnetic material, the screw thread 5 of the bolt 4 and the screw hole 6 of the nut 7 can be screwed and tightened as in the conventional case.
In the tightened and fixed state, the bolt 4 and the nut 7 are screwed together to be in a fixed state as in the prior art, and the nut 7 is magnetically attracted to the thread 5 of the bolt 4, so that even if vibration occurs. Since the nut 7 is difficult to rotate due to the magnetic force, it can be efficiently prevented from loosening.

[Different forms for carrying out the invention]
Next, different modes for carrying out the present invention shown in FIGS. 7 to 16 will be described. In the description of the different embodiments for carrying out the present invention, the same components as those in the first embodiment for carrying out the present invention are denoted by the same reference numerals, and redundant description is omitted.

  The second embodiment for carrying out the present invention shown in FIGS. 7 to 9 is mainly different from the first embodiment for carrying out the present invention in that it is made of a magnetic material or a magnetic material. Even in the tightening fixture 1A configured using such a bolt 4A, the same operational effects as those of the first embodiment for carrying out the present invention can be obtained in that the bolt 4A is used.

  In this embodiment, since each of the bolt 4A and the nut 7 is magnetized or formed of a magnetic material, the magnetic poles must be selected so that the bolt 4A and the nut 7 do not repel.

  The third embodiment for carrying out the present invention shown in FIGS. 10 and 11 is mainly different from the second embodiment for carrying out the present invention in that a nut 7A is formed of a ferromagnetic material. Even with the fastening fixture 1B configured using such a nut 7A, the same effects as those of the second embodiment for carrying out the present invention can be obtained.

  The fourth embodiment for carrying out the present invention shown in FIGS. 12 and 13 is mainly different from the first embodiment for carrying out the present invention in that it is formed in a hexagonal shape and is magnetized. In the point that the nut 7B formed of a magnetic material is used, the same effect as that of the first embodiment for carrying out the present invention can be achieved even with the fastening fixture 1C configured using such a nut 7B. can get.

  The fourth embodiment for carrying out the present invention shown in FIGS. 14 to 16 is mainly different from the first embodiment for carrying out the present invention in that a + or-driver 10 can be inserted on both sides. The tightening fixture 1D configured using such a nut 7C is used in the point of using the nut 7C formed with the driver insertion recesses 11 and 11 as described above. The same effect as that of the first embodiment can be obtained.

  In addition, you may use driver 10A, 10B in which the recessed part 12 into which the volt | bolt 4 enters at the front-end | tip part as shown in FIG. 16 was formed.

  Moreover, you may make the shape of the nut main body of the nuts 7, 7A, 7B, and 7C into shapes, such as square cylinders other than a cylinder, a pentagonal cylinder, a hexagonal cylinder.

  The present invention is used in the industry of manufacturing a fastening fixture using bolts and nuts.

1, 1A, 1B, 1C, 1D: Fastening fixture,
2: parts, 3: parts,
4, 4A: Bolt, 5: Screw thread,
6: Screw hole 7, 7A, 7B, 7C: Nut,
8: nut body, 9: head,
10, 10A, 10B: Driver
11: driver insertion recess, 12: recess into which a bolt enters.

Claims (4)

A tightening fixture comprising a bolt and a nut, wherein the bolt and nut can be adsorbed and fixed by magnetic force. 2. A fastening fixture according to claim 1, comprising a bolt formed of a ferromagnetic material and a magnetic nut screwed into the bolt and attracted to the bolt. A bolt made of a ferromagnetic material or made of a magnetic material, and a nut that is screwed into the screw portion of the bolt and attracted to the screw portion or made of a magnetic material. The fastening fixture according to claim 1 or 2, characterized by comprising: A nut made of magnetic material or made of a magnetic material has a nut body that is screwed with a screw portion of a bolt, and a cylindrical head having a screw hole or a bolt insertion hole integrally formed on the upper portion of the nut body. The fastening fixture according to claim 1 or 2, comprising a portion and a driver insertion recess formed so that a + or-screwdriver can be inserted into the head. .

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