JPH0618706U - Fastening structure of parts - Google Patents

Abstract

(57) [Abstract] [Purpose] A fastening structure that simplifies the clip body and can temporarily be temporarily fixed to the one component side when one component and another component are separably fastened using the clip body. Offer. [Structure] A clip body 1 for separably fastening one component P1 and another component P2 is integrally molded with a synthetic resin, and a knob portion 3 is provided on the upper surface side of the elastic flange portion 2 to form the elastic flange portion 2 The rotation shaft portion 4 is provided on the lower surface side of the
The locking claws 5 and 6 that lock in the mounting hole 10 of the one component P1 and the lock shoulder 7 that releasably locks in the through hole 13 of the other component P2 are formed on the By forming a protrusion 9 that fits into a positioning recess 12 provided on the peripheral surface of the mounting hole 10 on the lower surface, the rotary shaft portion 4 of the clip body 1 is inserted into the mounting hole 10 of one component P1. Only by this, the locking claws 5 and 6 formed on the rotary shaft portion 4 are automatically locked to the edge of the mounting hole 10, and the clip body 1 can be easily temporarily fixed to the one component P1 side. .

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to, for example, improvement of a fastening structure for fastening various parts of an automobile in a separable manner.

[0002]

[Prior art]

 This type of conventional fastening structure fastens one component to another component by using a clip body. As shown in FIG. 7, a round hole-shaped mounting hole H1 is drilled on the one component P1 side. On the side of the other component P2, a through hole H2 in the shape of a square hole is formed, while the clip body 21 has a knob body 22 integrally having a rotary shaft portion 22a, and a rotary shaft portion of the knob body 22. 22a, a coil spring 24 for elastically urging the lock member 23, a washer 25 for fixing the coil spring 24 to the rotary shaft portion 22a, and an E ring 26. There is.

When the parts P1 and P2 are actually fastened to each other, although not specifically shown, first of all, the knob 22 is rotated inside the round hole-shaped mounting hole H1 of the part P1. If the lock member 23 and the coil spring 24 are fitted to the rotary shaft portion 22a in this order by inserting the shaft portion 22a, the washer 25 and the E ring 26 can be attached to the tip end portion of the rotary shaft portion 22a. By this, the clip body 21 can be temporarily fixed to the one component P1 side. Therefore, after that, when the lock member 23 is inserted into the rectangular hole H2 formed on the other component P2 side and the knob body 22 is rotated in a predetermined direction, the lock member 23 is also rotated. Since it rotates in the same direction in conjunction with and engages with the short-side hole edge of the square hole H2, this causes one component P1 and the other component P2 to be fastened, and vice versa. When separating the fastened parts P1 and P2 from each other, this time, by rotating the knob body 22 in the opposite direction to release the lock of the through hole H2 of the lock member 23 with respect to the short side hole edge, Since the lock member 23 of the clip body 21 is immediately pulled out from the through hole H2 of the other component P2, this makes it possible to separate the components P1 and P2 from each other. Therefore, in the conventional fastening structure, the parts P1 and P2 are fastened to each other or the fastened part P1 and P2 are fastened only by rotating the knob body 22 forming a part of the clip body 21 in a predetermined direction. This has the advantage that P2s can be separated from each other.

[0004]

[Problems to be solved by the device]

 However, in the conventional fastening structure, as described above, the clip body 21 includes the knob body 22 having the rotating shaft portion 22a, the lock member 23, the coil spring 24, the washer 25, and the E ring 26. However, the number of parts naturally increases and the cost of the clip body 21 itself increases, and also when the clip body 21 is temporarily fixed to one component P1 side. However, since the number of parts is bad and each component must be assembled individually by using a jig or the like, there is a big problem that workability is deteriorated.

[0005]

[Means for Solving the Problems]

 The present invention was developed in order to effectively solve the problem of such a conventional fastening structure, and clips one component having a mounting hole and another component having a through hole. Assuming a fastening structure that separates the body using a body, the clip body is integrally molded with synthetic resin, a knob is provided on the upper side of the elastic flange, and the rotary shaft is attached on the lower side of the elastic flange. And a locking shoulder that locks to the mounting hole of the one component and a locking shoulder that releasably engages with the through hole of the other component on the rotary shaft, and the elastic flange A configuration is adopted in which a protrusion that fits into a positioning recess provided on the peripheral edge of the mounting hole is formed on the lower surface of the portion.

[0006]

[Action]

 Therefore, according to the present invention, since the clip body is integrally formed of synthetic resin, the rotary shaft portion of the clip body can be simply inserted into the mounting hole of one component. Since the formed locking claw automatically locks to the hole edge of the mounting hole, the clip body can be easily temporarily fixed to the one component side. Therefore, after that, the locking shoulder of the clip body in the temporarily fixed state is inserted into the through holes of other parts, and the knob is rotated until the protrusion of the elastic flange fits into the positioning recess. Then, the tip of the lock shoulder is locked to the hole edge of the through hole, so that the one component and the other component are securely fastened to each other. When separating the two parts in this fastened state, this time rotate the knob in the opposite direction until it is regulated by the projection and the positioning recess, and engage the lock shoulder with the hole edge of the through hole. By releasing, the locking shoulder of the clip body is pulled out from the through hole of the other component, which allows the components to be easily separated from each other.

[0007]

【Example】

 Hereinafter, the present invention will be described in detail with reference to an illustrated embodiment. As shown in FIG. 1, the fastening structure of the embodiment separates the parts P1 and P2 from each other by using the clip body 1 as in the conventional case. Although it can be fastened as much as possible, the feature is that the clip body 1 has the following configuration. That is, in this embodiment, the clip body 1 is integrally molded of synthetic resin, and the knob portion 3 is integrally erected at the center of the upper surface side of the umbrella-shaped elastic flange portion 2 as shown in FIG. Then, the rotary shaft portion 4 is integrally hung at the center of the lower surface side of the elastic flange portion 2, and at the hole edge of the mounting hole drilled on the side of one component P1 to be described later substantially in the middle of the rotary shaft portion 4. A pair of locking shoulders that form two pairs of locking claws 5 and 6 that lock and that releasably locks in a through hole formed on the tip of the rotary shaft portion 4 on the side of another component P2 described later. 7 is formed in a linear shape.

As shown in the figure, the two pairs of locking claws 5 and 6 are formed to face each other at an interval of 90 °, and one of the locking claws 5 facing each other has an inverted U shape. Since a structure is provided that can be easily bent inwardly through the slits 8, the locking claws 5 projecting outward more than the other facing locking claws 6 and the one facing locking claw 5 is , Located at a position directly intersecting with the lock shoulder 7. In addition, a pair of protrusions 9 are formed on the lower surface peripheral edge of the elastic flange portion 2 and the protrusions 9 are fitted into positioning recesses on the side of one component P1 described later to rotate the clip body 1. It is configured to regulate the position and angle.

On the other hand, in the present embodiment, the one component P1 side has a size large enough to allow the pair of lock shoulders 7 to be inserted, and the gap width between the locking claws 5 and 6 is large. A substantially square hole-shaped mounting hole 10 having a center-diameter expanded hole portion 10a that is shorter than that of the guide hole is formed, and as shown in FIG. The grooves 11 are provided symmetrically to form the positioning recesses 12 into which the protrusions 9 are fitted at both ends of each guide groove 11, and the longitudinal direction of the other parts P2 is different. The through holes 13 are formed in the shape of square holes, which are larger than the gap width of the pair of lock shoulders 7 but are smaller than the gap width of the lock shoulders 7 in the opposite direction.

Therefore, when the one part P1 and the other part P2 are fastened using the clip body 1, first, the rotary shaft portion 4 of the clip body 1 is removed from the lock shoulder 7 thereof. When it is inserted into the mounting hole 10 of the component P 1, one of the opposed locking claws 5 is bent inward through the slit 8 and passes through the central expanded hole portion 10a of the mounting hole 10 Since it automatically engages with the hole edge of the portion 10a, the clip body 1 can be easily temporarily fixed to the one component P1 side as shown in FIG. Therefore, after that, the lock shoulder 7 of the clip body 1 in the temporarily fixed state is inserted into the through hole 13 of the other component P 2, and the projection 9 of the knob 3 is fitted into the positioning recess 12. If it is rotated 90 ° in the predetermined direction until it reaches the end, the front end of the lock shoulder 7 is locked to the short side hole edge of the through hole 13 as shown in FIG. The P1 and the other component P2 are securely fastened to each other. In this fastened state, the rotation of the knob 3 causes the other facing locking claw 6 to lock on the hole edge of the central expanded hole 10a of the mounting hole 10 to rotate. The shaft portion 4 is prevented from coming off from the mounting hole 10.

When the two parts P1 and P2 in the fastened state are to be separated from each other, this time, the knob 3 is rotated in the opposite direction so that the hole 13 of the through hole 13 of the lock shoulder 7 with respect to the short-side hole edge. When the locking is released, the lock shoulder 7 of the clip body 1 is pulled out from the through hole 13 of the other component P2, which allows the components P1 and P2 to be easily separated from each other. However, at this time, the clip body 1 is locked to the one component P1 as it is and there is no concern that it will fall off from the one component P1 side. Therefore, the fastening structure of the present embodiment is applicable to panel-shaped components as well. It goes without saying that it is effective, but it is fully possible to use it with a structure in which the opening / closing lid etc. is fixed to the main body side.

In the present embodiment, the pair of projections 9 formed on the lower surface of the elastic flange portion 2 are not restricted by the rotation of the knob portion 3 regardless of whether the parts P1 and P2 are fastened or separated. Since it slides in the guide groove 11 provided on the side of the component P1 and elastically fits into the positioning recesses 12 formed at each end of the guide groove 11, the rotation of the knob 3 is thereby achieved. The position and angle can be regulated, and at the same time, a clear sense of moderation can be obtained when fastening and separating. Furthermore, the presence of the elastic flange portion 2 can be expected to absorb variations between the components P1 and P2, variations between the components and the clip body 1, variations between the projection 9 and the positioning recess 12.

In the above-described embodiment, the knob 3 is rotated by 90 ° in the forward and reverse directions so that the parts P1 and P2 are fastened and separated from each other, but the present invention is not limited to this. However, for example, as shown in FIG. 6, a pair of symmetrically formed guide grooves 11 are continuously formed in a perfect circle, and the knob 3 is rotated by 90 ° in the same direction. Therefore, it is also optional to configure the parts P1 and P2 to be continuously fastened and separated.

[0014]

[Effect of device]

 As described above, the present invention is characterized in that the clip body is integrally molded with the synthetic resin. Therefore, compared with the conventional one, the clip body itself can be greatly simplified and the cost can be reduced. Needless to say, it is necessary to insert the rotary shaft portion of the clip body into the mounting hole of the one component, especially when temporarily fixing the clip body to the one component side. It has contributed greatly to the improvement.

[Brief description of drawings]

FIG. 1 is an exploded perspective view of essential parts showing a fastening structure according to an embodiment of the present invention.

2A is a front view of the clip body, FIG. 2B is a side view of the same, and FIG. 2C is a bottom view of the same.

FIG. 3 is a cross-sectional view of essential parts showing the relationship between a positioning recess and a guide groove.

FIG. 4 is a cross-sectional view showing a state where the clip body is temporarily fixed to one component side.

FIG. 5 is a cross-sectional view showing a state in which one component and another component are fastened together.

FIG. 6 is a perspective view of an essential part showing another example of the guide groove.

FIG. 7 is an exploded perspective view of essential parts showing a conventional fastening structure.

[Explanation of symbols]

 1 Clip Body 2 Elastic Flange 3 Grip 4 Rotating Shaft 5 Locking Claw 6 Locking Claw 7 Lock Shoulder 9 Protrusion 10 Mounting Hole 12 Positioning Recess 13 Through Hole P1 One Part P2 Other Parts

Claims (1)

[Scope of utility model registration request] 1. A fastening structure in which one component having a mounting hole and another component having a through hole are separably fastened using a clip body, wherein the clip body is made of synthetic resin. It is integrally molded, the knob portion is provided on the upper surface side of the elastic flange portion, the rotary shaft portion is provided on the lower surface side of the elastic flange portion, and the rotary shaft portion is engaged with the mounting hole of the one component. A lock shoulder is formed to releasably engage with the retaining pawl and the through hole of the other component, and a projection is formed on the lower surface of the elastic flange portion that fits into the positioning recess provided on the periphery of the mounting hole. A fastening structure for parts, which is characterized by being formed.