JPH083699Y2 - Temporary nut - Google Patents

Description

[Detailed Description of the Invention] [Industrial field of application] This invention relates to a temporary fixing type nut, and more specifically, it uses various types of stud bolts for the body of an automobile or the like and allows for variations in the stud bolt positions. The present invention relates to a nut for mounting a component, which is a temporary fixing type nut that can be integrally handled with a component by temporarily fixing it in a mounting hole provided in the component.

[Prior Art] Conventionally, as such a temporary fixing type nut, as shown in, for example, FIG. 15, a synthetic nut used for attaching an automobile pipe holder 51 to an underfloor, an engine room, or the like is used. A tubular nut 41 made of resin is known. This nut 41 is provided with a square head portion 45 and a flange stop portion 46 at one end of a cylindrical shaft portion 42 formed to have a predetermined inner diameter, and
On the outer circumference of the other end of the shaft portion 42, there are two spiral projections 4 which are male threads
It is provided with 9,50.

On the other hand, the pipe holder 51 has a circular mounting hole 55.
Is provided, and a pair of temporary fixing locking claws (hereinafter, also simply referred to as locking claws) 56 that are bent and deformable downward from the pair of vertical grooves 58 of the mounting hole 55 are projected. And
When the shaft portion 42 of the nut 41 is pushed into the mounting hole 55 from above and the nut 41 is rotated to the right, FIG. 17 is a temporary fixing state view of the nut 41 in FIG. ), The locking claw 56 and the spiral ridges 49, 50 can be engaged with each other. The locking claw 56 and the spiral protrusions 49, 50 prevent the nut 41 from being temporarily fixed to the pipe holder 51 so that the nut 41 can be integrally handled. When the nut 41 is rotated to the right from the state viewed from Q in FIG. 15, the spiral ridges 49 and 50 and the locking claw 56 are engaged, and when rotated from the state viewed from Q to the left, the pipe holder 51 becomes The nut 41 can be removed. In addition,
When using the temporarily fixed nut 41 and pipe holder 51, insert the mounting hole 55 into the stud bolt (see stud bolt 32 in FIG. 9) protruding from the body, and fit the nut 41 to the stud bolt appropriately. The pipe holder 51 can be attached to the body by the stopper action of the flange stopper portion 46 by being press-fitted into.

[Problems to be Solved by the Invention] The above-described nut 41 can favorably fix the pipe holder 51 to the stud bolt at the regular mounting position of the body. However, the mounting position of the stud bolt actually causes some variation. FIG. 18 shows a pipe holder 61 that absorbs this variation. The pipe holder 61 is an initial product devised by the present inventor. In the pipe holder 61, the attachment hole 65 is formed in a long hole, and the temporary fixing locking claw 66 for locking the nut 41 has a wide claw width along the long hole.

As shown in Fig. 19, the conventional pipe holder 51 has locking claws.
By making the side surface 56A of 56 and the mountain side end portion 50A of the nut 41 slightly interfere with each other at the time of counterclockwise rotation, it is possible to easily prevent the nut from coming off. However, the pipe holder of the early invention of FIG.
Since the locking claw 66 has a wide claw width, the above-described relationship cannot be adopted for 61, and there is a problem that the temporarily-fixed nut 41 easily comes off due to vibration or the like.

Therefore, the present invention is to solve the above-mentioned problems in the pipe retainer for absorbing the variation of the stud bolt having the elongated mounting hole. That is, the object of the present invention is to temporarily attach the attachment parts such as pipe holders with a sufficient assembling strength without the risk of separation from the parts during transportation and to positively separate the parts. Another object of the present invention is to provide a temporary fixing type nut that can be easily separated and that can be attached to a body by allowing variation in the position of the stud bolt and that is suitable for a component for absorbing bolt variation.

[Means for Solving the Problems] A means for solving the above problems is to provide a wide hole projecting from an inner peripheral portion along a longitudinal direction of a mounting hole of a long hole provided in a component to be mounted on a body of an automobile or the like. A nut made of resin for temporarily fixing to the pair of temporary locking claws and fitting to a stud bolt of a body to fix the component to the body, wherein the nut is suitable for a tool. It is composed of a fixed head and a cylindrical shaft portion that is inserted into the stud bolt, and the outer peripheral portion of the shaft portion engages with the pair of temporary locking claws, respectively.
It is characterized in that a spiral projecting strip is provided, and a stopper that comes into contact with the temporary fixing locking claw is projectingly provided on the tip end side of the shaft of the spiral projecting strip.

[Operation] When the shaft part of the nut is inserted into the mounting hole of the component until it comes into contact with the locking claw and pressed and rotated in the screwing direction of the shaft part, the locking claw bends to raise the stopper, and Engage and the nut is temporarily secured to the part. Since the stopper claw engaged with the spiral ridge cannot raise the stopper by a normal action force during transportation or the like, the nut cannot be pulled out from the component.

When the nut is separated from the parts, when the shaft is pulled and rotated in the screw retraction direction while pulling the shaft, the locking claw bends to raise the stopper, the temporary fixing is released, and the nut comes off.

[Embodiment] Next, an embodiment of the present invention will be described with reference to FIGS.

FIG. 1 shows the external structure of the temporary fixing type nut 1 of this example.
This nut 1 is made of a synthetic resin material. The shaft portion 2 of the nut 1 is formed in a tubular shape, and as shown in FIG. 11, the inside of the cylinder is a fitting hole 3 having an inner diameter that effectively engages with the stud bolt 32 of the body 31. One end of the shaft 2 is closed or has a small hole,
In this example, the small hole 4 is formed, and a square head 5 for screwing operation and a flange stop 6 for stopping a pipe holder 21 described later are formed. 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 for removing the rust preventive layer applied to the stud bolt 32 on the large diameter portion at the time of screwing. 7 is projected. Inside the large diameter portion of the fitting hole 3, a plurality of grooved grooves 8 are provided inward from the opening side in order to improve the fitting property with the stud bolt 32. As shown in FIGS. 1 and 3, two spiral ridges 9 and 10 which are alternately wound are formed on the outer peripheral portion near the end of the opening. These spiral ridges 9 and 10 are formed so as to have a half pitch from the outer peripheral position of the shaft end that is symmetrical with respect to the shaft center of the nut 1. As shown in FIG. 10, the spiral ridges 9 and 10 have engaging surfaces 9A and 10A whose upper side surfaces are perpendicular to the axial center of the nut 1 and whose lower side surfaces are tapered guide surfaces 9B and 10B. It is said that. The spiral ridges 9 and 10 are formed in the right-handed winding direction which is the same as the winding direction of the male screw of the stud bolt 32.

Further, the two half-pitch spiral ridges 9 and 10 are provided with locking claws 26 of the pipe holder 21 which will be described later and are engaged with the both spiral ridges 9 and 10.
At the tip (opening) side of the shaft portion 2 of the spiral ridges 9 and 10, a stopper 11 is provided to prevent the stopper from coming off. As shown in FIGS. 1 and 4, the stopper 11 of this example has the same height as the spiral protrusions 9 and 10 in the groove between the spiral protrusions 9 and 10 at both ends of the spiral protrusions 9 and 10. Both spiral ridges 9 and 10
Are connected to each other.

On the other hand, FIGS. 6 to 8 show the structure of the pipe holder 21 of this example. The pipe holder 21 is made of a synthetic resin material. Pipe holders 23 for clamping a pipe body 22 such as a fuel tube are provided on the left and right portions of the pipe holder 21.
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. A vertical mounting hole 25, which is an elongated hole projecting outwardly from both sides of the pipe seat 23, is provided in the central portion of the pipe holder 21. As shown in FIGS. 6 and 8, a pair of wide temporary locking pawls 26 along the longitudinal direction of the mounting hole 25 are provided facing each other at a middle depth portion of the mounting hole 25. . 9 and 11, both the locking claws 26 are projected inwardly downward from the same height position by a predetermined length (note that FIGS. 7 and 8 are different from FIGS. 9 to 11). Is shown upside down,
26 is an upwardly projecting view. ) As shown in FIG. 10, the gap between the locking claws 26 has a width that allows the shaft portion 2 of the nut 1 to be inserted therein.

Further, as shown in FIG. 10, bolt locking claws 27 that lock the stud bolts 32 are provided facing each other on the lower portions of both wall surfaces on the long side of the mounting hole 25. Both bolt locking claws
27 is projected inward from the same height position for a predetermined length in a tilted manner, and the gap between the two is as shown in FIG. 9 and FIG.
The width is such that it can contact the tip of the shaft portion 2. The claw widths of the temporary fixing locking claw 26 and the bolt locking claw 27 are made sufficiently wide in the direction of the long hole of the mounting hole 25, and are formed to a thickness such that they can be flexibly deformed. An opening window 28 is provided on the wall surface projecting outward of the mounting hole 25 for die cutting during molding.

Then, as shown in FIG. 2, the pipe bodies 22 are clamped to the pipe seats 23 of the pipe holder 21, respectively.
As shown in FIGS. 9 and 9, the nut 1 is temporarily fixed to the mounting hole 25 of the pipe holder 21 in which the pipe body 22 is clamped. . That is, the shaft portion 2 of the nut 1 is inserted into the mounting hole 25 from above and the lower guide surfaces 9B and 10B of the spiral ridges 9 and 10 are inserted.
Is brought into contact with the temporary locking pawl 26. Then the guide surface 9B, 1
When the head 5 of the nut 1 is rotated to the right with an appropriate force while pressing 0B against the temporary locking pawl 26, the temporary locking pawl 26 is bent and deformed to pass the stopper 11. Forgive After the stopper 11 has passed, the temporary locking pawl 26 elastically returns to its original shape (see the states of FIGS. 9 and 10). Then, even if the nut 1 tries to come out upward, the temporary fixing engagement claw 26 engages with the engagement surfaces 9A, 10A of the spiral ridges 9, 10 and cannot be removed. Since the spiral ridges 9 and 10 are formed symmetrically and the pair of temporary locking pawls 26 are also provided at the same height position facing each other in the mounting hole 25 (see FIG. 10), When the shaft portion 2 of the nut 1 is in any rotation position inside the mounting hole 25, the temporary locking latching claws 26 are attached to the spiral protrusions 9 and 10 against the upward disengagement of the nut 1. Contact each other at the same time. In addition, since the stoppers 11 are provided at the tips of the shaft portions 2 of the spiral ridges 9 and 10, when the nut 1 temporarily fixed is in the normal state and the counterclockwise rotation is performed counterclockwise, the locking pawl 26 for temporary fixing is provided on the stopper 11. It abuts and is prevented from slipping upward.

Since the spiral ridges 9 and 10 have a half pitch, the temporarily fixed shaft portion 2 allows the mounting hole 25 to move downward,
The bolt locking claw 27 at the bottom of 25 prevents the shaft 2 from coming off downward. In addition, in the mounting hole 25 in which the bolt locking claw 27 is omitted, the shaft portion 2 is prevented from coming out downward by the flange stopper portion 6. Therefore, the retaining is effectively performed in the long hole.

Since the pipe holder 21 and the nut 1 are normally used for transportation and delivery in such a temporarily fixed state, there is no risk that they are inadvertently separated and one of them is lost.

If there is a problem with the nut 1 or the pipe holder 21 after the temporary fixing, the head 5 of the temporarily fixed nut 1 is rotated counterclockwise, and the temporary fixing locking claw 26 slightly touches the stopper 11 further. When it is rotated counterclockwise by applying the force of, the locking claw 26 can be easily removed by passing through the stopper 11 due to the bending of the temporary locking locking claw 26. The normal nut 1 or the pipe holder 21 is replaced and the locking claw 26 is replaced again. It can be temporarily stopped.

Next, when attaching the pipe holder 21 to the body 31 of an automobile or the like, as shown in FIG. 9, the attachment hole 25 of the pipe holder 21 is arranged with respect to the stud bolt 32 protruding from the body 31. Thereafter, as shown in FIG. 11, the mounting hole 25 is externally inserted, the stud bolt 32 is inserted into the fitting hole 3 of the nut 1, and the shaft portion 2 is tapped, for example.
Fit the stud bolt 32. Then, the inner peripheral portion of the fitting hole 3 of the shaft portion 2 meshes with the male screw of the stud bolt 32,
Moreover, the bolt locking claw 27 is pushed down at the lower end of the shaft portion 2 to press the stud bolt 32, so that the nut 1 is fixed to the stud bolt 32. Then, the pipe holder 21 is fixedly attached to the body 31 by the flange fixing portion 6 of the nut 1.

The stopper 11 of this embodiment is a half-pitch double spiral protrusion.
Although the spiral protrusions 9 and 10 are connected at both ends of the stoppers 9 and 10, the shape of the stopper 11 is not limited to this. For example, the stopper 11 in the nut 1A shown in FIG.
A, stopper 11B in nut 1B in Fig. 13, or
Like the stopper 11C in the nut 1C shown in Fig. 14, it does not have an appropriate shape that abuts the temporary locking pawl 26 and allows the temporary locking pawl 26 to pass by the rotating action of the nut head. obtain.

Further, in the present embodiment, the spiral ridges 9 and 10 have a pitch of half the circumference of the outer peripheral portion of the shaft portion 2, respectively.
A plurality of protrusions may be provided symmetrically with respect to the axis of the shaft portion 2 on the outer peripheral portion of the shaft portion 2 with a predetermined pitch. In addition, the spiral ridge 9,
It is also possible to form 10 in the left-handed direction.

[Advantage of the Invention] The temporary fixing type nut of the present invention is temporarily fixed to the component with a sufficiently large assembling strength when it is desired to maintain the temporary fixing state during transportation due to the action of the stopper described above. Therefore, the nut and the component can be integrally handled in a temporarily fixed state.

When it is desired to positively separate the temporarily fixed nut from the parts, the temporary force can be easily released by the acting force passing through the stopper. Therefore, either the nut or the component can be replaced.

In addition, the nut of the present invention is temporarily fixed to the locking claw for temporary fixing along the longitudinal direction of the mounting hole of the long hole of the component,
The stud bolt can be fitted at a predetermined position in the elongated hole, and the variation in the position of the stud bolt can be allowed in the elongated hole to be attached to the body.

[Brief description of drawings]

1 to 14 relate to an embodiment of the present invention. FIG. 1 is a perspective view of a nut, FIG. 2 is a temporarily fixed state view of a pipe holder and a nut, FIG. 3 is a front view of the nut, and FIG. Figure is Figure 3 IV-IV
5 is a sectional view taken along the line, FIG. 5 is a view from the direction of FIG. 3P, FIG. 6 is a front view of the pipe holder, FIG. 7 is a side view of the pipe holder, and FIG. Fig. 9 is a temporarily fixed state diagram, Fig. 10 is an enlarged view of a main part of the temporarily fixed state, Fig. 11 is a body attachment state diagram of the pipe holder, Figs. 12 and 13
FIG. 14 and FIG. 14 are views of another example of a nut mainly having a stopper shape. FIG. 15 is a perspective view of a conventional pipe holder and nut,
Fig. 15 is a state diagram of the conventional nut temporarily fastened in Fig. XVI-XVI line. Fig. 17 is a state diagram of the conventional nut temporarily fastened in Fig. XVII-
Fig. 18 is a state diagram along the XVII line, Fig. 18 is a perspective view mainly showing the mounting hole portion of the pipe holder of the initial invention, and Fig. 19 is a schematic diagram mainly showing the conventional temporary fixing locking claws and spiral ridges. is there. 1,1A, 1B, 1C ... Nut 2 ... Shaft 3 ... Fitting hole 5 ... Head 6 ... Flange stop 9,10 ... Spiral ridge 11 ... Stopper 21 ... Pipe holder 25 ... Mounting hole 26 ... Temporary fixing Locking claw 31 ... Body 32 ... Stud bolt

Claims (1)

[Scope of utility model registration request] 1. A stud of a body, which is temporarily fixed to a pair of wide temporary locking claws protruding from an inner peripheral portion along a longitudinal direction of a mounting hole of a long hole formed in a component to be mounted on a body of an automobile or the like. A nut made of resin for fitting the bolt to fix the component to the body, wherein the nut is composed of a head having a predetermined shape that fits a tool and a tubular shaft portion that is fitted and attached to a stud bolt. The outer peripheral portion of the shaft portion is provided with two spiral ridges that respectively engage with the pair of temporary fixing engagement claws, and the temporary fixing member is provided on the tip side of the shaft portion of the spiral ridge. A temporary fixing type nut characterized in that a stopper that comes into contact with the stop claw is projected.