阅读说明：本技术 被紧固物 (Fastened article ) 是由 橘川由里子 酒井富巳也 于 2020-03-18 设计创作，主要内容包括：被紧固物(10)包括基体(11)和贯通孔(12)。基体(11)具有与紧固件(2)的垫圈(6)面接触的基面(13),贯通孔(12)呈长孔状。被紧固物(10)包括限制面(21),该限制面(21)向与基面(13)正交的方向突出,并且在端片(17)上延伸,并与贯通孔(12)的闭口端部(14)相面对。限制面(21)被配置在根据以垫圈(6)的外径(R1)为基础的距离而从闭口端部(14)分离的位置。(The object (10) to be fastened includes a base (11) and a through hole (12). The base body (11) has a base surface (13) that is in surface contact with the washer (6) of the fastener (2), and the through-hole (12) is elongated. The object (10) to be fastened includes a regulating surface (21), and the regulating surface (21) protrudes in a direction perpendicular to the base surface (13), extends over the end piece (17), and faces the closed end (14) of the through hole (12). The limiting surface (21) is arranged at a position separated from the closed end (14) according to a distance based on the outer diameter (R1) of the gasket (6).)

1. An object to be fastened, comprising a base body having a base surface that comes into contact with a washer surface of a fastener, and a through hole formed in the base body, the through hole being formed in an elongated hole shape in which a shaft portion of the fastener can be inserted, a length of the elongated hole in one direction as viewed in an axial direction of the shaft portion being longer than a length of the elongated hole in a direction orthogonal to the one direction;

the object to be fastened includes a regulating surface that protrudes from the base surface in the axial direction, extends on one of two edge portions that exist in the direction orthogonal to the through hole, and faces one of two end portions of the through hole in the one direction;

the restriction surface is disposed at a position separated from the one end portion according to a distance based on an outer diameter of the washer.

2. The fastened article of claim 1,

the regulating surface is a surface that contacts a side surface of the washer in a state where the shaft portion is located at the one end portion.

3. The fastened article according to claim 1 or 2,

a guide surface adjacent to the restricting surface in the axial direction;

the guide surface is formed of an inclined surface or a curved surface in which the other end side distant from the regulating surface is farther from the one end portion than the one end side adjacent to the regulating surface.

4. The article to be fastened according to any one of claims 1 to 3,

the through hole is formed by a notch extending from the outer edge of the base body in the one direction;

the two edge portions include two end pieces that are provided on the outer edge side of the through hole in the base body and are divided into two parts with the through hole interposed therebetween;

the limiting surface is configured on at least one of the two end pieces.

5. The fastened article of claim 4,

the restricting surface is formed by bending the end piece.

Technical Field

The present disclosure relates to an object to be fastened, and more particularly, to an object to be fastened by a fastener.

Background

As a structure on the fastened object side to fasten a fastener such as a bolt, a structure has been proposed which functions as a rotation stopper of a fastener head (for example, see patent documents 1 and 2).

Prior art documents

Patent document

Patent document 1: japanese unexamined patent publication No. 2013-241949

Patent document 2: japanese unexamined patent application publication No. 2014-152916

Disclosure of Invention

Technical problem to be solved by the invention

However, in the structures described in patent documents 1 and 2, when the through hole formed in the object to be fastened and through which the fastening member such as a bolt can be inserted is formed in an elongated hole shape, only in the structure of the rotation stopper of the head portion of the fastening member, a new problem occurs as follows: during the fastening operation, the shaft portion of the fastener moves in the longitudinal direction of the through hole. In order to fasten the shaft portion of the fastening tool at a desired position of the through hole without moving the shaft portion in the longitudinal direction, it is necessary to fasten both the fastening tool and the object to be fastened so that the positions of the fastening tool and the object to be fastened are fixed during the fastening operation. In this way, when the through hole formed in the object to be fastened is formed in an elongated hole shape, it takes time and effort to press the fastener and the object to be fastened in order to fix the positions of both of them in the fastening operation.

The object of the present disclosure is to provide a fastened object that can save labor for fixing a position.

Means for solving the problems

The disclosed fastened object includes a base body having a base surface that comes into contact with a washer surface of a fastener, and a through hole formed in the base body, the through hole being formed in an elongated hole shape through which a shaft portion of the fastener can be inserted, the elongated hole having a length in one direction as viewed in an axial direction of the shaft portion that is longer than a length in a direction orthogonal to the one direction; the object to be fastened includes a regulating surface that protrudes from the base surface in the axial direction, extends on one of two edge portions that are present in the direction orthogonal to the through hole, and faces one of two end portions of the through hole in the one direction; the restriction surface is disposed at a position separated from the one end portion according to a distance based on an outer diameter of the washer.

Effects of the invention

According to the technique of the present disclosure, when an object to be fastened is fastened by a fastener, the regulating surface comes into contact with the side surface of the washer of the fastener to regulate the movement of the shaft portion of the fastener, and thus the position of the shaft portion of the fastener is fixed to one end portion of the through hole. This saves labor for pressing both the fastener and the object to be fastened to fix the position during the fastening operation.

Drawings

Fig. 1 is a perspective view illustrating an embodiment of an object to be fastened.

Fig. 2 is a plan view of the periphery of the through hole formed in the substrate of fig. 1.

Fig. 3 is a directional view indicated by an arrow III of fig. 2.

Detailed Description

Hereinafter, embodiments of the object to be fastened will be described. In the figure, the X direction is the longitudinal direction of the through hole, the Z direction is the axial direction of the shaft portion of the fastener, and the Y direction is the direction orthogonal to the X direction and the Z direction, respectively.

As illustrated in fig. 1, the fastened object 10 is a bracket that accommodates a guide pipe 1 of an oil level gauge of an engine, not shown, and is fixed to the frame 3 by a fastener 2. The object 10 to be fastened is not limited to the bracket of the guide tube 1 of the embodiment if it includes the through hole 12 formed in the base 11 and is fastened by the fastener 2.

As the fastener 2, a combination of a bolt 4, a nut 5, and a washer (washer)6 can be exemplified. The bolt 4 is composed of a shaft portion 4a and a head portion 4b, which are cut with male threads, and the head portion 4b is fixed to the frame 3. The nut 5 is disposed on the opposite side of the head 4b of the bolt 4 with the base 11 therebetween, and a female thread is cut in the central opening. The washer 6 is held between the nut 5 and the object to be fastened 10, has an annular shape in which a hole through which the shaft portion 4a can be inserted is formed, and has an outer edge projecting outward beyond the head portion 4b of the bolt 4 and the nut 5. The fastener 2 is not limited to the above configuration as long as it can fasten the object 10 to be fastened. As the fastener 2, a combination of a screw cut with a male screw, a fastening portion cut with a female screw, and a washer can be exemplified. Further, as the fastener 2, a washer may be additionally provided which is sandwiched between the head 4b of the bolt 4 and the object to be fastened 10. Further, as the fastener 2, the nut 5 may be fixed to the frame 3. Examples of the washer 6 include a flat washer, a spring washer, a disc spring washer, and a toothed washer.

The base body 11 has a base surface 13 which is in surface contact with the washer 6 of the fastener 2. The base surface 13 is a surface that comes into surface contact with the support surface of the washer 6, and in this embodiment, is a surface on the side where the nut 5 is present. The base surface 13 may be a surface that is in surface contact with the washer 6, and may be a surface on which the head 4b is present when the washer 6 of the fastener 2 is provided only on the head 4b side of the bolt 4.

As illustrated in fig. 2, the through hole 12 is a hole formed in the base 11 so that the shaft portion 4a of the bolt 4 of the fastener 2 can be inserted therethrough, and has an elongated hole shape in which the length in the X direction is longer than the length in the Y direction when viewed in the Z direction. In the present disclosure, the long hole shape includes not only a long hole having no slit in the hole circumferential direction but also a slit having a slit in the hole circumferential direction.

Hereinafter, the through-hole 12 of the embodiment is not a long hole having no gap at the outer edge when viewed in the Z direction, but a notch extending inward in the X direction from the outer edge of the base 11 will be described as an example. The through-hole 12 formed by the notch of the present disclosure has a length allowing the shaft portion 4a to move from the outer edge in the X direction, and has a width in the Y direction that is at least equal to or larger than the diameter of the shaft portion 4 a. The outer edge end of the base 11 having the through-hole 12 is bifurcated. In the through-hole 12, one of the inner ends in the X direction is a closed end 14, and one of the outer edges is an open end 15. The through hole 12 is formed by two bifurcated end pieces 16 and 17, and both edges in the Y direction are divided into two through holes 12 to form the end pieces 16 and 17.

The object 10 to be fastened has a guide portion 20, and the guide portion 20 functions when the object 10 to be fastened is fastened to the frame 3 by the fastener 2 such that the shaft portion 4a of the fastener 2 is positioned at the closed end portion 14. In the present disclosure, the state where the shaft portion 4a of the fastener 2 is located at the closed end 14 is shown as the state where the shaft portion 4a is in contact with the closed end 14, but includes the state where the shaft portion 4a is not in contact with the closed end 14 due to the diameter length of the shaft portion 4 a. The guide portion 20 has a regulating surface 21 and a guide surface 22.

In the guide portion 20, a restraining surface 21 and a guide surface 22 are formed by bending the end piece 17. The guide portion 20 may be formed of a member separate from the base 11 and joined to the base 11. The guide portion 20 may be provided on at least one of the end pieces 16 and 17, or may be provided on each of the two end pieces 16 and 17.

The restricting surface 21 protrudes upward in the Z direction from the base surface 13 and extends to the end piece 17 so as to be opposed to the closed end 14. The regulating surface 21 is disposed at a position separated from the closed end 14 by a distance based on the outer diameter R1 of the gasket 6.

The regulating surface 21 may be a surface that contacts the side surface of the washer 6 in a state where the shaft portion 4a is located at the closed end portion 14. The regulating surface 21 is not limited to a flat surface, and may be a curved surface as long as it is in contact with the side surface of the gasket 6.

The limiting surface 21 preferably stands substantially perpendicular to the base surface 13, in other words, to the bearing surface of the gasket 6. Furthermore, the height of the limiting surface 21 from the base surface 13 is preferably at least greater than the thickness of the gasket 6.

The regulating surface 21 may extend along the end piece 17, preferably extends from a predetermined position of the end piece 17 in a direction away from the through hole 12, and more preferably extends across the end piece 17 from end to end. The regulating surface 21 is configured not to protrude toward the through hole 12.

The restricting surface 21 faces the closed end 14. In the present disclosure, the restriction surface 21 is opposed to the closed end 14, and indicates the following state: when the center of the shaft portion 4a located at the closed end 14 is defined as an end point P1, the regulating surface 21 faces the end point P1 as viewed in the Z direction.

The arrangement position of the restricting surface 21 is set according to the distance based on the outer diameter R1 of the washer 6. Specifically, the configuration positions are: when the regulating surface 21 is in contact with the side surface of the washer 6, the shaft portion 4a is positioned in the state of being positioned at the closed end portion 14. In other words, the arrangement position is a tangential position with respect to the outer edge of the washer 6 in a case where the shaft portion 4a is positioned at the closed end portion 14.

The guide surface 22 is a surface adjacent to the restricting surface 21 in the Z direction, and is provided above the restricting surface 21 in the Z direction in the guide portion 20. The guide surface 22 is formed of an inclined surface or a curved surface having an upper end in the Z direction farther from the closed end 14 than a lower end in the Z direction, or a curved surface projecting upward in the Z direction.

The guide surface 22 is preferably inclined to the base surface 13. When the guide surface 22 is inclined to stand on the base surface 13, the guide surface 22 may be disposed at a position where the Z-direction upper end is farther from the closed end 14 than the Z-direction lower end. Since the guide surface 22 is obliquely erected with respect to the base surface 13, it is advantageous to guide the shaft portion 4a of the fastener 2 from the outer edge of the base body 11 to the inner side by sliding the washer 6 on the guide surface 22 as an inclined surface.

As illustrated in fig. 3, even when the fastening member 2 fastens the object 10 to be fastened to the frame 3, the shaft portion 4a of the fastening member 2 is displaced, the washer 6 slides in contact with the guide surface 22 of the guide portion 20, and the shaft portion 4a is guided to the closed end portion 14. Even if the shaft portion 4a is moved from the state of being positioned at the closed end portion 14 to the open end portion 15, the movement thereof is restricted by the side surface of the washer 6 contacting the restricting surface 21.

As described above, according to the object to be fastened 10, when the object to be fastened 10 is fastened to the frame 3 by the fastener 2, the regulating surface 21 comes into contact with the side surface of the washer 6 of the fastener 2, and the position of the shaft portion 4a of the fastener 2 is fixed to the closed end portion 14 of the through hole 12, so that it is possible to save the time and effort for fixing the position by pressing both the fastener 2 and the object to be fastened 10 at the time of fastening operation.

Further, according to the object 10 to be fastened, when the object 10 to be fastened is fastened to the frame 3 by the fastener 2, the bearing surface of the washer 6 of the fastener 2 comes into contact with the guide surface 22 and slides on the guide surface 22 as an inclined surface, and therefore the shaft portion 4a of the fastener 2 is guided to the closed end portion 14 of the through hole 12. In this way, since the shaft portion 4a of the fastener 2 can be positioned by the guide portion 20, the time required for the positioning operation of the shaft portion 4a at the time of the fastening operation can be shortened.

The present application is based on the japanese patent application filed on 26/3/2019 (japanese application 2019-057935), the contents of which are hereby incorporated by reference.

Industrial applicability

The fastened object of the present disclosure is useful in that the labor for fixing the position is saved.

Description of the reference numerals

2 fastener

4a shaft part

6 gasket

10 fastened object

11 base body

12 through hole

13 base plane

14 closed end (one end)

17 end piece (one edge part)

21 limiting surface

R1 outside diameter of washer.