JPH0932832A - Securing clip - Google Patents

Abstract

(57) [Summary] [Purpose] To provide a fixing clip that can easily perform retightening work in addition to fixing work and releasing work of parts. [Structure] A fixing clip for fixing a component 21 provided with a pin 22 having a flat head 23 to a panel P, which is a cylindrical outer body 1 having an operation knob 3 projecting from an outer peripheral surface thereof, and the outer body of the outer body. It is composed of a cylindrical inner body 11 that is rotatably fitted inside, and the outer body has an internal thread portion 4 and a check row tooth 5 on its inner peripheral surface.
The inner body forms a male screw portion 12 screwed with the female screw portion on the outer peripheral surface thereof and elastic claws which are locked to the check row teeth to prevent the inner body from being reversed. Is provided with a holding portion 17 that holds the flat head of the pin in a disengageable manner, and holds the flat head of the pin in the holding portion of the inner body under the screwed state of the male and female screw portions, By rotating, the inner body can be screwed inside the outer body with the pin.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an improvement of a fixing clip used for fixing parts such as a rear combination lamp of an automobile to a vehicle body panel side.

[0002]

2. Description of the Related Art As a conventional fixing clip of this type, for example, there is one shown in Japanese Utility Model Laid-Open No. 64-14916. The conventional fixing clip is intended to fix a component having a stud bolt erected on the back surface to the panel, and its specific structure is a cylindrical synthetic resin main body.
The former body is composed of two parts made of a metal spring material fixed to the inside of the body, and the former body integrally has a plurality of locking claws that rise obliquely upward on the inner peripheral surface side and a plurality of locking claws on the outer peripheral surface side. The operation knob is projected, and the latter spring member has a structure in which a plurality of locking pieces which similarly rise obliquely upward are formed on the inner peripheral edge of the ring-shaped base portion.

When the above-mentioned component is fixed to the panel side by using the fixing clip, the stud bolts provided upright on the rear surface of the component are inserted into the through holes preliminarily provided on the panel side. Then, when the tip of the stud bolt protruding rearward from the panel through the through hole is pushed into the inside of the main body, the locking claws on the main body side and the locking pieces on the spring material side are deformed while the stud bolt's Since the passage is allowed and the respective tip edges of the locking claw and the locking piece are elastically locked to the corresponding screw surface of the stud bolt, the component is thereby fixed to the panel side.

In the initial state where the stud bolt is pushed into the main body, if the parts cannot be securely fixed, the above operation knob is used to move the main body together with the spring member. If it is rotated in a predetermined direction and tightened, it becomes possible to compensate for the lack of pulling force, and
By rotating the fixing clip itself in the direction opposite to the tightening direction and removing the fixing clip from the stud bolt, the fixed state of the component can be released.

[0005]

Therefore, under such a conventional fixing clip, the parts can be fixed to the panel side only by linearly pushing the stud bolt into the inside of the main body, and if necessary, the additional parts can be added. Although it has the advantage that it can be tightened, it does not have a reverse rotation prevention function, so even if it is bent or retightened, if it receives external force such as vibration,
The retightened state is easily loosened and there is a risk that the fixing of the parts becomes unstable.

Further, in the conventional clip, since the stud bolt is used, the rotation work for the additional tightening may be difficult, but in particular, in order to release the fixed state of the parts, the stud bolt is used. When removing the fixing clip from the main body, the main body made of synthetic resin has to be rotated many times, which is also regarded as a problem in terms of workability.

[0007]

The present invention was developed in order to effectively solve the problems of these conventional fixing clips, and is a fixing clip for fixing a component having a pin having a flat head to a panel. On the premise that the outer body has a cylindrical outer body having an operating knob protruding therefrom, and a cylindrical inner body rotatably fitted inside the outer body, the outer body has a female inner surface. Forming the screw part and check row teeth, the inner body is
On the outer peripheral surface, a male screw portion to be screwed with the female screw portion and an elastic claw for preventing reverse rotation of the inner body by being locked to the check row teeth are formed, while the flat head portion of the pin is engaged on the inner peripheral surface. A detachable holding part is provided, and the flat head of the pin is held in the holding part of the inner body under the screwed state of the male and female screw parts, and the outer body is rotated, thereby pinching the inner body. With this, a structure is adopted in which it is screwed inside the outer body.

In this case, the holding portion provided on the inner peripheral surface of the inner body is defined by a pair of holding walls separated by the insertion slits, and the diagonal lines of the respective holding wall surfaces,
In addition to the positioning stopper portion of the flat head, it is preferable that the receiving portion, the guide portion, and the guiding portion are continuously formed with a height difference.

Therefore, according to the present invention, the screw state of the female screw portion and the male screw portion is obtained to integrate the outer body and the inner body, while the pins provided on the component side are attached to the panel. Insert into the through hole opened on the side, insert the flat head of the pin protruding from the through hole to the rear of the panel into the inside of the inner body,
When the outer body is rotated 90 ° clockwise with the inner body as it is, the flat head of the pin is held by the holding portion provided on the inner peripheral surface of the inner body, whereby the component is attached to the panel. The initial fixed state is obtained.

When it is necessary to perform additional tightening in order to secure the secure fixing of the components to the panel, the outer body is also rotated in the clockwise direction.
While only the inner body holds the flat head of the pin, it can be screwed in the direction allowed inside the outer body, and the pin can be automatically drawn in the rear of the panel according to the rotation amount of the outer body. Become. Further, in such a state, since the inner body is reliably prevented from reversing inside the outer body by the engagement of the elastic claws with the check row teeth, even if an external force such as vibration is applied to the inner body. , Never worry about loosening the tightening.

On the contrary, in order to release the fixed state of the parts,
When removing the fixing clip from the pin side of the part, you can easily remove the fixing clip from the pin side by rotating the outer body together with the inner body 90 ° counterclockwise. By comparison, the work of releasing the fixing of the parts becomes very easy.

[0012]

BEST MODE FOR CARRYING OUT THE INVENTION Hereinafter, the present invention will be described in detail based on an illustrated embodiment, and a fixing clip according to the embodiment is, as shown in FIG. 1, particularly a component 21 such as a rear combination lamp. The pin 22 having a flat head 23 that expands to both sides is projected integrally or by insert molding on the back surface of the, and was developed as a component 21 with the pin 22 fixed to the panel side. Structurally, unlike the conventional one, it is composed of two parts, an outer body 1 and an inner body 11, both of which are molded of synthetic resin.

As shown in FIG. 2, the outer body 1 of the former is entirely formed into a cylindrical shape, and an annular flange portion 2 is formed at the center of the outer peripheral surface thereof. A plurality of operation knobs 3 are provided between the outer peripheral surfaces, while a female screw portion 4 for one pitch is formed on the inner peripheral surface on the upper side, and the non-return having a considerable height dimension on the inner peripheral surface on the lower side. The row teeth 5 are continuously formed.

Further, as shown in FIG. 3, the latter inner body 11 is formed into a cylindrical shape of such a size that it can be rotatably fitted into the outer body 1, and the outer surface except the lower portion thereof has the above-mentioned outer surface. A plurality of pitches of male screw portions 12 that are screwed with the female screw portions 4 of the outer body 1 are formed, and the check row teeth 5 are locked to the lower outer peripheral surface where the male screw portions 12 are not formed. A plurality of elastic claws 13 that prevent the inner body 11 from reversing within the outer body 1.
Are formed along the circumferential direction.

Further, a pair of holding walls 15 which are separated via the insertion slits 14 are provided on the inner peripheral surface on the upper side, and the pins provided on the component 21 by the pair of holding walls 15 are provided. In addition to defining a holding portion that holds the flat head 23 of the second head 22, a stopper portion 16 that restricts the rotational position of the flat head 23 is provided on a diagonal line of the upper surface of each holding wall 15, The receiving portion 17, the tapered guide portion 18, and the tongue-shaped guide portion 19 are formed continuously in order with a height difference.

Therefore, the insertion slit 14 has the pin 2
Since the shape and the size allow the insertion of the flat head 23 of No. 2, the flat head 23 is inserted into the insertion slit 14 and the inner body 11 side is rotated 90 ° in the clockwise direction. The lower surfaces on both sides of the head portion 23 move from the respective guiding portions 19 onto the guide portion 18 and collide with the respective stopper portions 16, thereby positioning and holding them on the flat receiving portions 17 of the respective holding walls 15 facing each other. Will be done.

Therefore, when the component 21 having the pin 22 on the back surface is fixed to the panel P side by using the fixing clip having such a structure, first, the inner body 1 is opened from the lower opening of the outer body 1.
While inserting 1, the female screw portion 4 of the outer body 1 and the inner body 11
The inner and outer bodies 1 and 11 are integrated by screwing together with the male screw portion 12 of. Incidentally, in this integrated state, as shown in FIG. 4, each of the elastic claws 13 formed on the lower outer peripheral surface of the inner body 11 is formed on the lower inner peripheral surface of the outer body 1 in a check line. The engagement with the teeth 5 allows the inner body 11 to rotate in one direction inside the outer body 1, but certainly prevents the inner body 11 from rotating in the opposite direction inside the outer body 1. The Rukoto.

Therefore, the pin 22 of the component 21 is inserted into the through hole H formed in advance on the panel P side, and the flat head 23 of the pin 22 projecting rearward from the through hole H toward the panel P is inserted into the inner body. As shown in FIG. 5, when it is inserted into the inside 11, the flat head 23 smoothly passes through the inside of the insertion slit 14 and faces each holding wall 15 of the inner body 11. As it is, the operation knob 3 protruding from the outer peripheral surface of the outer body 1
When the outer body 1 and the inner body 11 are rotated clockwise by 90 ° by utilizing, the flat head 23 of the pin 22 is held by the pair of holding walls 15 as shown in FIG. As a result, the initial fixed state of the component 21 to the panel P is obtained.

Regarding the holding of the flat head 23,
By the rotation of the outer body 1 accompanied by the inner body 11, the lower surfaces on both sides of the flat head 23 move from the guiding portion 19 of each holding wall 15 onto the guide portion 18 while being regulated by the stopper portion 16, Although it is positioned and held on the flat receiving portion 17 of the holding wall 15, as described above, only the tapered guide portion 18 interposed is provided between the receiving portion 17 and the guiding portion 19. Because of the height difference, the flat head 23
When is held on the corresponding receiving portion 17 of each holding wall 15, the pin 22 is automatically drawn into the inner body 11 by the difference in height.

When it is necessary to perform further tightening in order to secure a reliable fixed state of the component 21 to the panel P, the outer body 1 is also rotated clockwise as shown in FIG. , This time, while only the inner body 11 holds the flat head 23 of the pin 22, the inner body 11 is screwed in the above-mentioned allowable direction inside the outer body 1 to move the pin 22.
Since it is possible to pull in according to the rotation amount of the outer body 1, the component 21 is strongly pressed to the panel P side by this pulling force. The principle that the inner body 11 can be threaded inside the outer body 1 is that the flat head 23 of the pin 22 abuts the stopper portion 16 of each holding wall 15 to prevent the inner body 11 from rotating together. Because.

Therefore, according to the present embodiment, if the pitch of the male and female screw portions 4 and 12 is set to be large, a large amount of retraction can be obtained with a slight amount of rotation of the outer body 1. It is a work that can be done reasonably and easily. In addition, in the present embodiment, the screw portions 4 and 12
The pitch is set to 1.75 mm, but it goes without saying that the pitch is not limited to this.

Further, in such a state, as described above,
Since the reverse rotation of the inner body 11 is blocked by the engagement of the elastic claws 13 with the check row teeth 5, even if an external force such as a vibration is applied, the retightened state is loosened carelessly, There is no fear that the fixing of 21 to the panel P becomes unstable.

On the contrary, when the fixing clip is removed from the pin 22 side of the component 21 in order to release the fixed state of the component 21, the outer body 1 together with the inner body 11 are flattened head 23.
When it is rotated 90 ° counterclockwise so that it can move to the guiding portion 19 of each holding wall 15, the state returns to the state of FIG. 5 described above, and since the flat head 23 coincides with the insertion slit 14, This makes it possible to easily remove the fixing clip from the pin 22 side. Therefore, under the present embodiment, it goes without saying that the work of fixing the component 21 is, of course,
The tightening work and the work for removing the component 21 can be expected to be rationalized.

[0024]

As described above, according to the present invention, by adopting the above-mentioned structure, the outer body together with the inner body can be moved in the forward and reverse directions 90, regardless of whether the component is fixed to the panel side or released. Since it only needs to be rotated, the workability is much better than the conventional one. Also, if necessary,
When performing the retightening, a small amount of rotation of the outer body can provide a large amount of pull-in on the component side and the amount of pull-in can be freely adjusted. Furthermore, since the reverse rotation of the inner body in the outer body is reliably prevented by the engagement of the elastic claws with respect to the check row teeth, even if external force such as vibration is applied, the tightened state is loosened, There is no need to worry that the fixing of the parts to the panel becomes unstable.

[Brief description of drawings]

FIG. 1 is a main part exploded perspective view showing the relationship between a fixing clip and a component pin according to an embodiment of the present invention.

2A is a plan view of the outer body, FIG. 2B is a bottom view of the same, FIG.
(C) is the same sectional view.

3A is a plan view of the inner body, FIG. 3B is a bottom view of the same, FIG.
(C) is the same sectional view.

FIG. 4 is an explanatory diagram showing a state in which the inward rotation of the inner body is prevented.

FIG. 5 is a cross-sectional view of essential parts showing a state in which the flat head of the pin is inserted into the insertion slit of the inner body.

FIG. 6 is a cross-sectional view of essential parts showing an initial fixed state in which the flat head of the pin is held by the holding wall of the inner body.

FIG. 7 is a cross-sectional view of essential parts showing a state in which an outer body is rotated to perform additional tightening.

[Explanation of symbols]

 1 Outer body 2 Flange portion 3 Operation knob 4 Female screw portion 5 Reverse row teeth 11 Inner body 12 Male screw portion 13 Elastic claw 14 Insertion slit 15 Retaining wall (retaining portion) 16 Stopper portion 17 Receiving portion 18 Guide portion 19 Inviting Part 21 Parts 22 pin 23 pin flat head P panel H through hole

Claims (2)

[Claims] 1. A fixing clip for fixing a component provided with a pin having a flat head to a panel, the cylindrical outer body having an operation knob protruding from the outer peripheral surface, and rotatable inside the outer body. A cylindrical inner body to be fitted into the outer body, the outer body forms internal thread portions and check row teeth on the inner peripheral surface, and the inner body is
On the outer peripheral surface, a male screw portion to be screwed with the female screw portion and an elastic claw for preventing reverse rotation of the inner body by being locked to the check row teeth are formed, while the flat head portion of the pin is engaged on the inner peripheral surface. A detachable holding part is provided, and the flat head of the pin is held in the holding part of the inner body under the screwed state of the male and female screw parts, and the outer body is rotated, thereby pinching the inner body. A fixing clip characterized in that it is configured to be screwed inside the outer body together with. 2. The holding portion provided on the inner peripheral surface of the inner body is defined by a pair of holding walls separated by insertion slits, and the flat head is positioned on a diagonal line of each holding wall. The fixing clip according to claim 1, wherein, in addition to the stopper portion, the receiving portion, the guide portion, and the guiding portion are continuously formed with a height difference.