JP2556570Y2 - Temporary fixing nut and holder - Google Patents

Description

[Detailed description of the invention]

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a temporary fixing nut which can be integrally handled by temporarily fixing it to a mounting hole of a holder and a holding tool therefor, and more particularly to a stud bolt for a body of an automobile or the like. The present invention relates to a temporarily-fixed nut capable of fixing a protector that covers an outer surface of a holding tool by using a mounting method and a holding tool that can tolerate variations in stud bolt positions.

[0002]

2. Description of the Related Art Conventionally, as such a temporarily-fixed nut, for example, as shown in FIG. 14, a pipe holder (also simply referred to as a holder) 61 of an automobile is attached to an underfloor or an engine room. A cylindrical nut 51 made of a synthetic resin to be used is known. This nut 51
Is provided with a square head 55 and a flange stopper 56 at one end of a cylindrical shaft portion 52 having a predetermined inner diameter, and a double-helix formed as a male screw on the outer periphery of the other end of the shaft portion 52. Ridge 5
9, 60 are provided.

On the other hand, the pipe holder 61 has a protector 71 on the outer surface side. The pipe holder 61 has a circular mounting hole 65 as shown in FIG.
As shown in FIG. 16, a pair of bending-deformable nut locking pieces 66 which are inclined into the hole and project into the mounting hole 65. The protector 71 has its insertion hole 73 fixed to a locking claw 69 on the outer surface of the pipe holder 61, and a through hole 72 having the same diameter as the mounting hole 65 is provided at the mounting hole 65 of the pipe holder 61. Is provided.

When the shaft 51 of the nut 51 is pushed into the through hole 72 and the mounting hole 65 from the outer side and the nut 51 is rotated clockwise, as shown in FIG. With the nut 71 held down, the nut locking piece 66 and the spiral ridges 59, 60 can be engaged. The nut locking piece 66 and the spiral ridges 59 and 60 prevent the nut 51 from being integrally fixed to the pipe holder 61 together with the protector 71 by the retaining action. Then, when the nut 51 temporarily fixed is rotated counterclockwise in FIG. 14, the nut 51 can be removed from the pipe holder 61 having the protector 71.

When using the temporarily held pipe holder 61, the bolt retaining piece 67 of the pipe holder 61 is inserted into a stud bolt (see the stud bolt 42 in FIG. 10) projecting from the body, and a nut is inserted. By properly screwing the 51 to the stud bolt, the pipe holder 61 can be attached to the body by the stopping action of the flange stopping portion 56.

[0006]

[Problems to be solved by the invention] As shown in FIG.
The nut 51 temporarily fixed to the holder 61 from the outer surface side of the protector 71 is in a state where the protector 71 is pressed by the flange stopper 56, but the engagement position between the spiral ridges 59 and 60 and the nut locking piece 66. , A step of 1/2 pitch P occurs. Therefore, a gap S is formed between the flange stopper 56 of the nut 51 and the protector 71, and there is a problem that the fixing of the protector 71 is insufficient. And spiral ridge 5
Since there is no detent on 9, 60, the temporarily fixed nut 5
No. 1 has a problem that it may come off the holder 61 due to vibration or the like. Further, the nut 51 described above is used to hold the holder 6 with respect to the stud bolt at the regular mounting position of the body.
1 can be fixed favorably. However, since the mounting positions of the stud bolts actually have some variation, there is a problem that the holding tool 61 is difficult to fix to the stud bolts at the shifted positions.

Accordingly, the present invention has been made to solve the above-mentioned problems in the conventional temporarily-fixed nut and pipe holder which are temporarily fixed. That is, the problem of the present invention is that the protector is pressed against the holder whose outer surface side such as the pipe holder is covered with the protector and is temporarily fixed to the holder, and may be separated from the holder during transportation or the like. It is an object of the present invention to provide a temporary fixing nut which can be easily separated when it is desired to separate the holder from the holder positively and which can be easily attached to the stud bolt of the body.

Another object of the present invention is to provide a holding tool having an outer surface covered with a protector, which can be temporarily fixed by a temporarily-fixed nut, is sufficiently fixed and held in the temporary fixing, and has a stud. An object of the present invention is to provide a holder which can be attached to a body while allowing variation in bolt positions.

[0009]

A nut according to the present invention for solving the above-mentioned problems is provided with a mounting hole and a holding portion for a component, and has a protector which is covered with a protector on the outer surface. A nut for temporarily fixing by inserting into a hole and a mounting hole of a holder and fitting the stud bolt of a body of an automobile or the like to fix the holder to the body, wherein the nut is compatible with a tool. A head having a predetermined shape, a flange stopper for pressing the protector, and a cylindrical shaft inserted into the stud bolt, and an outer peripheral portion of the shaft,
Two spiral ridges are respectively provided to engage with a pair of temporary fixing locking pieces protruding from the inner peripheral portion of the mounting hole, and the protector is provided on a shaft outer peripheral surface at an upper end of the spiral ridge. And a locking step portion for holding the temporary fixing locking piece in contact with and holding it in a pressed state is provided.

The holder according to the present invention for solving the above-mentioned problems has a mounting hole and a part holding part, and a protector is covered on the outer surface, while a head for fitting a tool and a flange stopper are provided. And a shaft portion of a temporarily fixed nut having a stepped portion formed on the outer peripheral portion of the shaft portion and having a locking step portion, is inserted into the mounting hole through the through hole of the protector, and the protector is flanged. While holding the shaft part in the mounting hole and temporarily fixing the shaft part to the mounting hole, the shaft part of the temporarily fixed nut is fitted to the stud bolt of the body of an automobile or the like and fixed to the body together with the protector. A holder, wherein the through hole and the mounting hole are elongated holes into which the shaft portion can be inserted, and a pair of bolts temporarily fixed to stud bolts on an inner peripheral portion of the elongated hole along the longitudinal direction of the mounting hole. Locking piece and temporary fixing nut A pair of nuts engaging piece to be locked abutting engagement to the ledge portion, characterized in that the thus provided for the respective wide.

[0011]

When the shaft of the nut is inserted into the mounting hole of the holder through the through hole of the protector and rotated in the screwing direction of the shaft, the shaft is engaged with the spiral ridge and the nut locking piece. The nut locking piece is screwed in, guided from the upper end of the spiral ridge to the locking step, and engaged. The engagement between the locking step and the nut locking piece cannot be disengaged by a normal acting force during transportation or the like. When the nut is separated from the holder, if the shaft is rotated in the screw retraction direction while pulling the shaft, the temporary fixing is released due to the bending of the nut locking piece, and the nut comes off.

In the holder in the temporarily fixed state, the mounting holes are inserted into the stud bolts, and the stud bolts are press-fitted into the fitting holes of the shaft through the gaps between the bolt locking pieces. The two bolt locking pieces lock the stud bolt by this press fitting. Each of the mounting hole of the holder and the through hole of the protector is a long hole, and can be fitted to a stud bolt which is displaced.

[0013]

Next, an embodiment of the present invention will be described with reference to FIGS. FIG. 1 shows an appearance structure of a nut 1 of a temporary fixing type in this example. The nut 1 is made of a synthetic resin. The shaft portion 2 of the nut 1 is formed in a cylindrical shape, and the inside of the cylinder is formed with a fitting hole 3 having an inner diameter that engages with a stud bolt 42 of a body 41 as shown in FIG. One end of the shaft portion 2 is closed or a small hole, in this example, a small hole 4, and has a rectangular head 5 for screwing operation and a protector 31 of a pipe holder 21 described later.
And a flange stopper 6 which is in contact therewith. The other end of the shaft 2 is open. As shown in FIGS. 4 and 5, the fitting hole 3 has a large diameter on the opening side, and a plurality of fitting claws 7 for removing a rust prevention layer applied to the stud bolt 42 at the time of screwing in a large diameter portion. It is protruding. A plurality of grooves 8 extending inward from the opening side are provided inwardly of the large-diameter portion of the fitting hole 3 to improve the fitting property with the stud bolt 42.

As shown in FIGS. 1 and 3, two spiral ridges 9, 10 which are alternately wound are formed on the outer periphery near the end of the opening. These spiral ridges 9, 1
Numerals 0 are formed so as to be half pitches from the outer peripheral position of the shaft end symmetrical with respect to the axis of the nut 1. Spiral ridge 9,
As shown in FIG. 10, a lower surface 10 is a guide surface 9.
A and 10A. The spiral ridges 9 and 10 are
The stud bolt 42 is formed in the same clockwise direction as that of the male screw of the stud bolt 42. A locking step 11 for contacting and engaging a nut locking piece 26 guided by the spiral ridges 9 and 10 is formed on the outer peripheral surface of the shaft at the upper end of each of the spiral ridges 9 and 10. I have.

As shown in FIGS. 1 and 3, etc., the locking step portion 11 of this embodiment is provided on the outer peripheral surface of the shaft portion at the upper end of both spiral ridges 9, 10, and the upper portion is smaller than the tapered surface of small diameter. Become. When the nut 1 is rotated clockwise, the two nut locking pieces 2 of the holder 21
Numeral 6 is guided by the two spiral ridges 9 and 10 of the nut 1 while being elastically deformed, and guided to the locking step 11 of the shaft 2. (See FIG. 11)

On the other hand, FIGS. 6, 8 and 9 show the structure of the pipe holder 21 of this embodiment. The pipe holder 21 is used by attaching a protector 31 for protecting the outer surface side, and is formed of a synthetic resin. The pipe holder 21 is provided with locking pawls 2 for fixing the protector 31 on both sides of the outer surface.
9 are provided, and a pipe seat 23 for clamping a pipe body 22 such as a fuel tube is provided on the left and right portions on the inner surface side. Each pipe seat 23 is provided with a flexible retaining piece 24 that bends when the pipe body 22 is clamped and that acts to prevent the clamped pipe body 22 from coming off. At the center of the pipe holder 21, a vertical mounting hole 25 is provided, which is a long hole protruding outward from both sides of the pipe seat 23. As shown in FIGS. 6, 8, and 9, a pair of nut engaging pieces 26 are provided on upper portions of both wall surfaces on the long side of the mounting hole 25 so as to face each other. The two nut locking pieces 26 are projected downwardly inwardly from the same height by a predetermined length, and the gap between the two nut locking pieces 26 is inserted into the shaft 2 of the nut 1 as shown in FIG. It is the width that can be obtained.

As shown in FIGS. 6 and 9, bolt engaging pieces 27 for engaging stud bolts 42 are provided opposite to the lower portions of both wall surfaces on the long side of the mounting hole 25.
The two bolt locking pieces 27 are projected inwardly upward from the same height by a predetermined length, and the gap between the two pieces comes into contact with the tip of the shaft 2 of the nut 1 as shown in FIGS. It is the width that can be obtained. The claw widths of the nut locking piece 26 and the bolt locking piece 27 are made sufficiently wide in the long hole direction of the mounting hole 25 and formed to have a thickness capable of bending and deforming. In addition, an opening window 28 is provided on a wall surface protruding outward of the mounting hole 25 for removing a mold during molding.

The protector 31 is, as shown in FIG.
The pipe holder 21 is formed of a synthetic resin or rubber or the like to a predetermined thickness so as to cover the outer surface thereof, and has a through hole 32 having a long hole having the same shape as the mounting hole 25 of the pipe holder 21 at the center thereof. The insertion hole 3 into which the locking claw 29 of the holder 21 is inserted
3 The protector 31 locks the insertion hole 33 with the locking claw 29.
And is attached to the outer surface of the holder 21 so that the through hole 33 and the attachment hole 25 match.

As shown in FIG. 2, the pipe bodies 22 are respectively clamped on the respective pipe seats 23 of the pipe holder 21 to which the protector 31 is attached, and as shown in FIGS. The nut 1 is temporarily fixed to the mounting hole 25 of the pipe holder 21 through the through hole 32. That is, the nut 1 is attached to the mounting hole 25 through the through hole 32.
And the guide surfaces 9A of the spiral ridges 9, 10 are inserted.
10A is brought into contact with the nut locking piece 26. Next, while pressing the guide surfaces 9A and 10A against the nut locking pieces 26, the head 5 of the nut 1 is pushed in with an appropriate force with a predetermined tool, and the nut locking pieces 26 are placed on the upper ends of the guide surfaces 9A and 10A. The flange stopper 6 comes into contact with the protector 31 and the nut retaining piece 26 is inserted into the retaining step 11 (FIG. 1).
0, see FIG. 12). When the locking step 11 is inserted into the nut locking piece 26, the nut 1 does not come off because the nut locking piece 26 acts on the locking step 11 in a locking manner as shown in FIG. . For this reason, the flange stopper 6 holds the contact state with the protector 31.

The locking step 11 is formed at a predetermined position on the outer peripheral surface of the shaft portion, and a pair of nut locking pieces 26 are also provided at the same height position facing each other in the mounting hole 25 (FIG. 10), when the nut 1 is pulled upward, no matter what rotational position the shaft portion 2 of the nut 1 is in the inside of the mounting hole 25, both the nut locking pieces 26 are locked step portions. 11 and is prevented from coming off. Locking step 1
Reference numeral 1 denotes a tapered surface having a large diameter on the lower side, so that the shaft portion 2 temporarily fixed allows the mounting hole 25 to move downward, but the shaft portion 2 is prevented from falling downward by the flange stopper portion 6. You. Therefore, the retaining is effectively performed in the elongated hole.

Pipe holder 2 with protector 31 attached
Since the nut 1 and the nut 1 are usually provided for transportation and delivery in such a temporarily fixed state, the pipe holder 21 to which the protector 31 is attached and the nut 1 are separated carelessly and one of them is lost. There is no danger. In particular, in the temporary fixing of this example, since the flange stopper 6 is in contact with the protector 31, the nut 1 is not vibrated during transportation or delivery.
Since there is no looseness between the nut 1 and the holder 21, the temporary fixing is released and the nut 1 and the holder 21 are not separated. After the temporary fixing, the pipe holder 2 to which the protector 31 is attached is attached.
If there is any inconvenience in the nut 1 or the nut 1, the head 5 of the temporarily fixed nut 1 is rotated to the left while pulling outward, and the nut locking piece 26 is bent to be removed from the locking step 11, and the spiral ridge is formed. It can be easily removed along 9 and 10, and can be temporarily replaced again by replacing it with a normal nut 1 or pipe holder 21.

Next, when the temporarily held pipe holder 21 is attached to the body 31 of an automobile or the like, as shown in FIG.
For 2, the mounting hole 25 of the pipe holder 21 is arranged. Mounting hole 25 of pipe holder 21 and protector 3
Since each of the through holes 32 is a long hole, the stud bolts 42 can be arranged even if the positions of the stud bolts 42 are slightly different from the regular positions. Thereafter, as shown in FIG. 12, the mounting hole 25 is extrapolated, the stud bolt 42 is inserted into the fitting hole 3 of the nut 1, and the shaft portion 2 is fitted to the stud bolt 42 while being rotated by, for example, an impact wrench. . Then, the inner peripheral portion of the fitting hole 3 of the shaft portion 2 engages with the external thread of the stud bolt 42 and the bolt locking piece 27
Is pushed down at the lower end of the shaft portion 2 and the stud bolt 42
Is pressed, so that the nut 1 is fixed to the stud bolt 42. Then, the protector 31 and the pipe holder 21 are fixedly attached to the body 41 by the flange stopper 6 of the nut 1.

The locking step 11 of this embodiment is formed in a tapered shape with a small diameter at the upper part on the outer peripheral surface at a predetermined position of the shaft 2, but the shape of the locking step 11 is not limited to this. is not. For example, as shown in FIG. 13, the locking step 11 </ b> A of the nut 1 </ b> A is an annular groove provided on the outer peripheral surface of the shaft at the upper end of the spiral ridges 9, 10 and guided by the spiral ridges 9, 10. The nut locking piece 26 may be brought into contact with and engaged with the locking step 11A of the annular groove.

[0024]

[Effects of the Invention] The temporary fixing nut according to the present invention has a locking step, so that when it is desired to maintain the temporary fixing state during transportation or the like, the protector is pressed and held by the flange stopper and The holder can be temporarily fixed at a sufficiently large assembly strength. Therefore, the nut and the holder can be handled integrally in a temporarily fixed state. When it is desired to positively separate the temporarily fixed nut from the holder, the temporarily fixed nut can be easily released by rotating the nut in the return direction of the spiral ridge. Therefore, the nut and the holder can be replaced.

In the holder of the present invention, the mounting hole is formed as an elongated hole, the through hole of the protector is formed as an elongated hole, and the protector is temporarily fixed to the nut in a state where the protector is pressed and fixed. The stud bolt can be fitted at a predetermined position in the long hole, and the stud bolt can be mounted on the body while allowing variation in the position of the stud bolt in the long hole.

[Brief description of the drawings]

FIG. 1 is a perspective view of a nut according to an embodiment of the present invention.

FIG. 2 is a view showing a state where a pipe holder and a nut are temporarily fixed.

FIG. 3 is a front view of a nut.

FIG. 4 is a sectional view taken along the line IV-IV in FIG. 3;

FIG. 5 is a view as viewed from the direction P in FIG. 3;

FIG. 6 is a front view of the pipe holder according to the embodiment of the present invention.

FIG. 7 is a front view of the protector.

FIG. 8 is a side view of the pipe holder to which the protector is attached.

FIG. 9 is a sectional view mainly showing through holes and mounting holes.

FIG. 10 is an arrangement view of the holding tool in a temporarily fixed state on a stud bolt.

FIG. 11 is a diagram showing a state in which the pipe holder is attached to the body.

FIG. 12 is an enlarged view of a main part in a temporarily fixed state.

FIG. 13 is another example of a nut.

FIG. 14 is an explanatory view of the shape of a conventional pipe holder and a conventional nut.

FIG. 15 is a plan view of a conventional pipe holder.

FIG. 16 is an enlarged view of a main part showing a conventional temporary fixing state.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1, 1A Nut 2 Shaft part 3 Fitting hole 5 Head 6 Flange stopper 9, 10 Spiral ridge 11, 11A Locking step part 21 Pipe holder 25 Mounting hole 26 Nut locking piece 27 Bolt locking piece 31 Protector 41 Body 42 Stud bolt

Continuation of the front page (56) References JP-A-1-234611 (JP, A) JP-A 1-168009 (JP, U) JP-A-2-25709 (JP, U) JP-A 1-109610 (JP) , U) Japanese Utility Model Showa 63-182313 (JP, U)

Claims (2)

(57) [Scope of request for utility model registration] 1. A holder provided with a mounting hole and a holding part for a component and having an outer surface covered with a protector, is temporarily inserted into a through hole of the protector and a mounting hole of the holder, and is temporarily fixed to an automobile or the like. A nut for fitting the stud bolt of the body to fix the holder to the body, wherein the nut has a head having a predetermined shape adapted to a tool, a flange stopper for pressing the protector, and a stud bolt. Two spiral projections are formed on the outer peripheral portion of the shaft portion, which are engaged with a pair of temporary fixing locking pieces projecting from the inner peripheral portion of the mounting hole. A locking step is provided on the outer peripheral surface of the shaft at the upper end of the helical ridge to hold the protector in a pressed state on a holder and to abut the locking piece for temporary fixing. Temporary fixing nut characterized by that. 2. An outer peripheral side of a protector is provided with a mounting hole and a part holding part, and a protector is covered on an outer surface side, and a head for fitting a tool, a flange stopper part, and a cylindrical shaft part are formed. Insert the shaft portion of the temporary fixing nut having a locking step into the mounting hole through the through hole of the protector, hold the protector in a pressed state at the flange fixing portion, and attach the shaft portion to the mounting hole. A holder for temporarily fixing and temporarily fixing the shaft portion of the temporarily fixed nut to a stud bolt of a body of an automobile or the like and fixing the shaft together with the protector to the body, wherein the through hole and the mounting hole are formed by the shaft. Part is inserted into a long hole, and the inner peripheral part along the longitudinal direction of the mounting hole of the long hole corresponds to a pair of bolt locking pieces that are temporarily fixed to the stud bolt and the locking step of the temporary fixing nut. A pair of nut locking pieces to be connected and locked A holder characterized in that it is made eccentric.