JPS6325364Y2 - - Google Patents

Description

[Detailed Description of the Invention] [Field of Application of the Invention] The present invention relates to a clip for attaching a door belt molding used to attach a molding body to a door belt portion of a vehicle.

[Prior Art] A door belt molding that is attached to a door belt portion that is the upper end of an outer panel of a door has a molding body that is formed from a thin material and has a substantially U-shaped cross section. An attachment clip is assembled in advance to this molding body, and the molding body can be attached to the door belt portion by fitting this attachment clip to the upper end of the door outer reinforcement hose or the like.

7 and 8 show a mounting clip 100 of this type proposed in Japanese Utility Model Application No. 58-4807. The attachment clips 100 are integrally molded from synthetic resin into the shape shown in the figure, and a plurality of attachment clips 100 are assembled into one molding body 102 along the longitudinal direction. This assembly is performed by supporting piece 104 and supporting piece 10.
This is done manually by inserting the portion on the right side of the molding body 102 into the cross section of the molding body 102 and sandwiching the side wall of the molding body 102 between the support piece 104 and the upright piece 106.

Here, the mounting clip 100 is attached to the molding body 1.
Although the insertion tip width W of the portion inserted into the cross section of the molding body 102 is set larger than the neck dimension H of the molding body 102, the cantilevered corner 108 presses against the bent portion 110 of the molding body 102. By contacting and elastically deforming, insertion into the cross section of the molding body 102 is possible.

The corner 108 is designed to be strong enough to be elastically deformed as described above, but the mounting clip 1
Since the assembly work of 00 to the molding body 102 is done quickly from the viewpoint of productivity, it is often inserted into the molding body 102 in an oblique state.

In this case, the corner 108 is greatly curved due to an increase in the amount of overlap with the bent portion 110, and also comes into impactful contact with the bent portion 110, so it is subjected to a large load that exceeds the design strength. It may break as a result.

The work of attaching the molding body 102 with the mounting clip 100 assembled to the door belt part is also done manually, and the upper end of the door outer reinforcement hose 114 is temporarily positioned at the entrance between the support piece 104 and the clamping piece 112. After placement, this is done by pressing the molding body 102 from above to below. As a result, as shown in FIG.
16 is fitted into the mounting hole 118 drilled in the door outer reinforcement hose 114, and the support piece 104 and the clamping piece 112 clamp the upper end of the door outer reinforcement hose 114, and the molding body 102 is attached to the door belt portion. It will be attached.

If the corner 108 is broken during the operation of pressing the molding body 102 from above downward, if the right side of the molding body 102 is pressed from the center of gravity in FIG. Clip 100
The force transmitted to the molding body 10 becomes a rotational force.
2 rotates clockwise, and the claw 116 comes off from the attachment hole 118 of the door outer reinforcement hose 114. For this reason, the claw 1 that has come off from the mounting hole 118
16 is required to engage with the mounting hole 118 again, which significantly deteriorates productivity.

In addition, if the corner 108 is broken, the molding body 102 will be damaged even after being attached to the door belt part.
It becomes easy to rotate and cause rattling.

[Purpose of the invention] In view of the foregoing, an object of the present invention is to provide a clip for attaching a door belt molding that is free from damage during assembly to the molding body.

[Summary of the invention] The present invention has a substantially U-shaped cross section that opens downward, and the first end is bent toward the second end to form a neck portion that narrows the opening at the opening end, thereby forming a weather strip. It is a resin integrally molded clip that is attached to the molding body in order to attach the attached molding body to the door belt part, and it has a straight part arranged within the U-shaped cross section of the molding body, and a clip that is folded back from the lower end of the straight part and A hook that wraps around to the outside of the molding body from the second end and clamps the molding body with the straight part, and a hook that is folded back from the upper end of the straight part and stands up on the door belt part within the U-shaped cross section of the molding body. An arm that holds the door outer reinforcement hose, a protrusion that protrudes from the side of the arm side of the straight part and engages with the opening of the door outer reinforcement hose, and a protrusion that extends from near the upper end of the straight part and has a tip that is attached to the molding body. It has a claw part that comes into contact with the vicinity of the corner part of the molding body within the U-shaped cross section to prevent rotation of the molding body. When not acting, the neck can enter into the U-shaped cross section of the molding body without interfering with the molding body, and after entering the U-shaped cross section of the molding body, the tip comes into contact with the molding body and absorbs external force. The integral hinge is configured to be elastically deformed and moved to a position near the corner portion by receiving the force, thereby preventing damage to the claw portion.

[Embodiment of the invention] FIG. 1 shows a state in which a door belt molding attachment clip 10 (hereinafter referred to as clip 10) according to the present embodiment is assembled to a molding body 12.

The molding body 12 is formed by bending a thin steel plate to have a substantially U-shaped cross section, and one end thereof forms a bent portion 14 bent at a substantially right angle toward the other end. A PVC protector 16 is attached to this bent portion 14 to form a neck portion (dimension H) of the molding body 12. A weather strip 17 is attached to the other end of the molding body 12, and its tip lip 17A serves as a contact surface to the door glass.

On the other hand, as shown in FIGS. 2 and 3, the clip 10 is in the shape of a bent plate integrally molded from synthetic resin, and has a straight part 18 in the center, and an arm 20 at one end of the straight part 18. Hook 22 at the end
are connected.

The middle part of the arm 20 is a bent part 24 deformed in the direction of the straight part 18, and a door outer reinforcement hose 26 (see FIG. 4) can be pressed and held between the straight part 18 and the bent part 24.

Further, a claw portion 30 corresponding to the conventional corner 108 is integrally connected to a portion of the arm 20 that protrudes in a curved shape from the straight portion 18 and is connected to the bent portion 24 via a deformable integral hinge 28. It is prominent. This claw portion 30 is in the posture shown in FIGS. 2 and 3 when no external force is applied, and the width dimension A of the clip 10 in this state is
is made smaller than the neck dimension H of the molding body 12. With this, the clip 10 is attached to the molding body 1.
2 neck (dimension H).

Further, this claw portion 30 is connected to the integral hinge 28.
The arm 20 is deformed so that it can rotate until it comes into contact with a stopper 32 that projects outward from the arm 20, as shown by the solid line in FIG. come into contact with

The tip of the arm 20 is gradually inclined in a direction away from the straight part 18, and when inserted into the molding body 12, approaches the straight part 18 direction to facilitate insertion, but as shown in FIG. After that, the tip part can interfere with the bent part 14 and the clip 10
It has come to act as a stopper.

On the other hand, a hook 2 provided at the other end of the straight portion 18
2 is designed to accommodate the base of a weather strip 17 fixed to the molding body 12. Further, the straight portion 18 has a protrusion 34 extending toward the arm 20.
protrudes and is intended for insertion into the opening 36 of the door outer reinforcement hose 26.

Next, a procedure for assembling the clip 10 to the molding body 12 will be explained.

The clip 10 is inserted into the molding body 12 with the claw portion 30 in the posture shown in FIGS. After insertion, the claw part 30
The tip of the molding body 12 comes into contact with the bottom of the molding body 12. In this contact state, as shown by the angle θ in FIG. 1, the bottom of the molding body 12 is inclined at a predetermined angle, and the integral hinge 28 is deformed by the insertion force of the clip 10. Then, the claw portion 30 rotates to the solid line state in FIG. 1 and comes into contact with the stopper 32. In this state, the tip of the claw portion 30 comes into contact with the inner peripheral corner of the molding body 12.

During this assembly, when the claw portion 30 passes through the neck of the molding body 12, the clip 1
Since the width dimension A of 0 is smaller than the neck dimension H, the claw portion 30 will not normally come into contact with the protector 16 even if the clip 10 is inserted in an oblique state.

Further, even when the claw portion 30 contacts the protector 16, there is a limit to the oblique angle, so the right side portion of the claw portion 30 in FIG. 2 never comes into contact, but the left side portion always contacts the protector 16. In this case, the claw portion 30 deforms the integral hinge 28 and rotates clockwise in FIG. 2, changing the width dimension A to a narrow width, so that it will not break.

The molding main body 12 with the clip 10 assembled in this way is engaged with the door outer reinforcement hose 26 and attached to the door belt portion as shown in FIG.
6 abuts on the outside of the door outer panel 38.

Therefore, when an assembling force is applied in the direction of arrow F in FIG. 4 during assembly, the molding body 12 tends to move in the direction of arrow D in FIG. Since the molding main body 12 is in contact with the inside of the main body 12, the molding main body 12 does not rotate, and a gap of dimension L is secured between the bottom of the molding main body and the tip of the clip 10. This prevents the molding body 12 from interfering with the door outer reinforcement hose 26 and the tip of the door outer panel flange portion 38A despite the assembly force F.
Deformation of the molding body 12 is prevented.

Furthermore, even if the assembly force in the direction of the arrow F is applied from any position in the left and right directions in FIG. do not have.

In FIG. 4, the portion shown by the broken line above the hatched portion of the flange portion 38A indicates the shape of the door outer panel between the clips 10.

Next, consider the angle θ between the claw portion 30 and the bottom of the molding body. Pay attention to the point Q where the claw portion 30 contacts the molding body 12. P to clip 10 when assembling
When an external force acts on the point Q, a normal force N and a frictional force F act on the point Q at a friction angle α as shown in FIG. 5A.

As shown in Figure 5B, if the maximum static friction angle at this point Q is α ₁ , then if the angle β (=90° - θ) is smaller than α ₁ , then the resultant force R (normal force N and frictional force Since the sum of F) acts at an angle smaller than α ₁ ,
It is impossible to attach the clip 10 without the claw portion 30 sliding on the bottom of the molding body 12.

Also, as shown in FIG. 5C, the angle β is α ₁
If it is larger than α1, the resultant force R will act at an angle larger than _α1 , and the claw portion 30 will
It slides on the bottom of the plane and becomes the state shown by the solid line in Figure 1.

Here, the maximum static friction coefficient N of the stainless steel material of the molding body 12 and the polypropylene material of the clip 10 is considered to be 0.25, so α ₁ = tan ^-1 N = tan ^-1 0.25 = 14°... ...(1) β(=90°-θ)>14° ...(2) θ<76° ...(3) As a result, if the angle θ is 76° or less, the bottom surface of the molding body 12 will slide. It can be seen that rotation is possible with certainty.

Next, FIG. 6 shows a second embodiment of the present invention. The clip of this embodiment differs from the previous embodiment in that the claw portion 30 is integrally projected from the vicinity of the joint between the arm 20 and the straight portion 18 via an integral hinge 28. Also, the stopper 3 of the above embodiment
2 is not provided, and the upper end portion of the arm 20 comes into contact with the claw portion 30 and essentially functions as a stopper.

Therefore, although this embodiment has a simpler structure than the previous embodiment, it achieves the same function.

The clip of the present invention can be made of various resin materials such as polyacetal in addition to polypropylene.

[Effects of the invention] As explained above, in the door belt molding attachment clip according to the present invention, the claw portion extends through the integral hinge, and when no external force is applied, the clip does not interfere with the molding body. After entering the cross section of the molding body, the tip comes into contact with the molding body and receives external force, causing the integral hinge to elastically deform and move. This has the advantage that there is no risk of damage to the claw portion when it is assembled to the main body.

[Brief explanation of the drawing]

Fig. 1 is a sectional view showing the first embodiment of the clip according to the present invention assembled to the molding body, Fig. 2 is a front view of the clip of the first embodiment, and Fig. 3 is the right side of Fig. 2. 4 is a sectional view showing how the molding main body is attached to the door, FIGS. 5A to 5C are explanatory diagrams showing the relationship of the contact angle θ between the claw part and the molding main body, and FIG. Corresponding to FIG. 1, there is a sectional view showing a second embodiment of the present invention, FIG. 7 is a sectional view showing a conventional clip assembled to the molding body, and FIG.
FIG. 2 is an exploded perspective view of FIG. 10...Clip, 12...Mall body, 18
...Straight section, 20...Arm, 22...Hook,
26...Door outer reinforcement hose, 28...Integral hinge, 30...Claw portion, 34...Protrusion,
36...Opening.

Claims (1)

[Scope of utility model registration request] It has a substantially U-shaped cross section that opens downward, and the first end is bent toward the second end to form a neck that narrows the opening at the open end, and the molding body to which the weather strip is attached is used as a door belt part. It is a resin integrally molded clip that is attached to the molding body for attachment to the molding body, and includes a straight part arranged within the U-shaped cross section of the molding body, and a straight part that is folded back from the lower end of the straight part and extends from the second end to the molding body. a hook that wraps around to the outside of the molding body and clamps the molding body with the linear part, and an arm that is folded back from the upper end of the straight part and clamps the door outer reinforcement hose that stands up on the door belt part with the straight part within the U-shaped cross section of the molding body. a protrusion that protrudes from the arm-side side of the straight portion and engages with the opening of the door outer reinforcement hose; A claw part that comes into contact with the vicinity of the corner part to prevent rotation of the molding body, this claw part is connected to the vicinity of the upper end of the straight part via an integral hinge, and when no external force is applied, the above-mentioned The neck part can enter into the U-shaped cross section of the molding body without interfering with the molding body, and after entering the U-shaped cross section of the molding body, the tip comes into contact with the molding body and receives external force, thereby creating an integral hinge. A clip for attaching a door belt molding, characterized in that the clip is elastically deformed and moved to a position near the corner portion.