JPH07269181A - Key cylinder mounting structure for vehicle - Google Patents

Abstract

PURPOSE:To increase the rotation preventive force of a key cylinder without increasing the thickness of a mounting panel. CONSTITUTION:The recessed section 20 of a retainer clip 18 has a nearly U-like shape, and the curved edge section 20a of the recessed section 20 corresponds to the first notch section 4 of a mounting hole 3, and a flange 17 is set higher than the rising section 19 of the retainer clip 18, and the curved edge section 20a is positioned abutting on or proximate to the flange 17. Because the inclination of the flange 17 to the outside is restricted by this curved edge section 20a, the practical strength of the first notch section 4 is increased, increasing the rotation preventive force of a key cylinder 2.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a vehicle key cylinder mounting structure.

[0002]

2. Description of the Related Art As a conventional vehicle key cylinder mounting structure, one shown in FIGS. 5 to 8 is known (see Japanese Utility Model Laid-Open No. 62-133851). Reference numeral 1 is a mounting panel, specifically, an outer panel of the door. Since the drawing is shown downward for convenience, the upper side of the mounting panel 1 is the mounting direction of the key cylinder 2 inside the door (direction A in the drawing), and the lower side is the outside of the door in the detaching direction of the key cylinder 2 ( (Direction B in the figure). The mounting panel 1 is basically provided with a circular mounting hole 3. Two large and small first notches 4 and 5 are formed at symmetrical positions of the mounting hole 3, and two second notches 6 are formed at symmetrical positions orthogonal to the first notches 4 and 5. A flange 7 having a predetermined height d ₁ is bent and formed in the mounting direction A at the edges of the mounting hole 3 other than the cutouts 4 to 6 so as to increase the rigidity of the mounting hole 3.

The key cylinder 2 has a cylindrical shape as a whole, a large-diameter key insertion portion 8 is formed at one end, and a lever 9 for transmitting an operating force is attached at the other end. Further, on the side surface of the key cylinder 2, there are large and small first protrusions 10 and 11 that engage with the first notches 4 and 5, and a second protrusion 12 that passes through the second notches 6. Has been formed.

Further, 13 is a retainer clip, and a tip side portion of the retainer clip 13 is a raised portion 14 having a height d ₂ larger than that of the flange 7, and this portion is bent by a constant spring property. Has become. A substantially rectangular recess 15 is cut out from the tip of the raised portion 14 (see FIG. 7). This recess 1
An inclined edge 15a that spreads to the left and right is also formed at the tip portion of 5. Further, the base end portion of the retainer clip 13 is a rising portion 16 for grasping by hand.

Then, the key cylinder 2 is inserted into the mounting hole 3 of the mounting panel 1 from the lever 9 side at the other end, and the first protrusions 10 and 11 are engaged with the first cutouts 4 and 5, respectively. The second protrusion 12 allows the second notch 6 to pass therethrough. Next, holding the rising portion 16 of the retainer clip 13 by hand, insert the concave portion 15 at the tip end thereof into the key cylinder 2 to form the concave portion 15
The opposite edge 15b of the corresponding surface 12a of the second protrusion 12
To prevent the key cylinder 2 from slipping out of the mounting hole 3 in the detaching direction B. The key cylinder 2 attached in this manner is provided with the first protrusions 10 and 11 and the first protrusion 10.
Since the rotation around the axis α is restricted by the engagement with the notches 4 and 5, it is possible to insert the key into the key insertion portion 8 and perform the necessary key rotation operation. Moreover, since the flange 7 is formed at the edge of the mounting hole 3, the rigidity of each of the first cutouts 4 and 5 is increased, and the rotation of the key cylinder 2 is reliably prevented during key operation. ing.

[0006]

However, in such a conventional vehicle key cylinder mounting structure as described above, due to the engagement between the first protrusions 10 and 11 and the first cutouts 4 and 5, a general structure is adopted. Although the rotation of the key cylinder 2 during key operation is prevented, when a tool for tampering is inserted into the key insertion portion 8 and a very large rotational force is applied to the key cylinder 2, the direction of the force is applied. The first notch portion 4 in
Adjacent corners K of 5 (see FIG. 7) are deformed so as to turn in the mounting direction A, the flange 7 of that part falls outward, and at the end the key cylinder 2 rotates and the door lock is unlocked. There is a risk of being destroyed. Therefore, conventionally, the plate thickness of the mounting panel 1 is sufficiently increased so that the mounting hole 3 is not deformed even when subjected to a strong force, which causes an increase in the weight of the vehicle body.

The present invention has been made by paying attention to such a conventional technique, and provides a vehicle key cylinder mounting structure capable of increasing the rotation preventing force of the key cylinder without increasing the plate thickness of the mounting panel. It is provided.

[0008]

In order to achieve the above object, a vehicle key cylinder mounting structure according to the present invention is provided.
The recess of the retainer clip is generally U-shaped, the curved edge of the recess corresponds to the first notch of the mounting hole, and the flange is set higher than the raised portion of the retainer clip, and On the other hand, the curved edges are in contact with or in the proximity of each other.

[0009]

According to the present invention, even if the key cylinder receives a large rotational force due to an erroneous operation, the curved edge portion of the concave portion is in contact with or in the proximity of the flange, and the outward fall of the flange is caused by this bending. Since it is regulated by the edge portion, the substantial strength of the first cutout portion increases, and the rotation preventing force of the key cylinder increases.

[0010]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to FIGS. The same parts as those in the prior art are designated by the same reference numerals, and a duplicate description will be omitted.

The flange 17 of the mounting panel 1 according to this embodiment has a height d ₃ which is larger than the height d ₂ of the raised portion 19 of the retainer clip 18. Flange 17
The fact that the height d ₃ is greater than the raised portion d _2, the interval from a height d ₃ is, the key cylinder 2 of the key insertion portion 8 of the flange 17 to the corresponding surface 12a of the second protrusion 12 (= Since it means that the height is larger than the height d ₂ of the raised portion 19 (see FIG. 1), when the key cylinder 2 is inserted into the mounting hole 3, the side end of the flange 17 is brought into contact with the side surface of the second protrusion 12. On the other hand, the engaged state overlaps by (d ₃ −d ₂ ).

On the other hand, the recess 20 of the retainer clip 18 is substantially U-shaped, and this recess 20 has a curved edge portion 20a corresponding to the bottom portion and two opposing edge portions 20b. An inclined edge portion 20c similar to the conventional one is also formed at the tip of the facing edge portion 20b. Then, at the center of the curved edge portion 20a, a third protrusion engaging with the first protrusion 10 of the key cylinder 2 is provided.
A cutout 21 is formed. The curved edge portion 20a of the concave portion 20 has a bending degree substantially corresponding to that of the flange 17, and by inserting the concave portion 20 into the key cylinder 2 and receiving the key cylinder 2 in the concave portion 20, the first protrusion portion 10 is formed. The curved edge portion 20a of the recess 20 is brought into proximity with the flange 17 by a minute gap S while being engaged with the third cutout portion 21 of the retainer clip 18. That is, depending on whether or not there is a molding error in the curved edge portion 20a or the flange 17, the curved edge portion 20a may be in a state of being completely in contact with the flange 17, or such a minute gap S may occur. However, in the present invention, it is sufficient if at least a close state through the minute gap S can be obtained.

Further, in this embodiment, the retainer clip 1
A third cutout 21 is formed in the shaft 8, and the third cutout 21 engages with the first protrusion 10 of the key cylinder 2, so that the inserting direction of the retainer clip 18 with respect to the key cylinder 2 is always a constant direction. The corresponding surface 12a of the second protrusion 12 always engages with the optimum facing edge 20b of the recess 20. Therefore, the retainer clip 18 and the second protrusion 12
A sufficient engagement state with the key cylinder 2 is obtained, and the key cylinder 2 is reliably prevented from coming off in the detaching direction B.

Even if a very large rotational force is applied to the key cylinder 2 by inserting a tool for tampering into the key insertion portion 8 of the key cylinder 2 thus mounted, the recess 20 is formed. The curved edge 20a of the flange 17
Since the flange 17 does not fall outward due to the curved edge portion 20a, the substantial strength at the adjacent corner portion K of the first cutout portion 4 is increased, and the rotation of the key cylinder 2 is reliably prevented. It Further, in this embodiment, the side end of the flange 17 is (d ₃ −) with respect to the side surface of the second protrusion 12.
Since it is engaged by d ₂ ), the second protrusion 12 which has not been conventionally involved in rotation prevention is also involved,
In this respect as well, more reliable rotation prevention of the key cylinder 2 is achieved.

[0015]

The vehicle key cylinder mounting structure according to the present invention has the contents as described above, and even if the key cylinder receives a large rotational force due to an erroneous operation, the curved edge portion of the recess is the flange. Since the flange is in contact with or in proximity to, and the outward fall of the flange is restricted by the curved edge portion, the substantial strength of the first cutout portion increases, and the rotation preventing force of the key cylinder increases. . Therefore, in order to prevent the rotation of the key cylinder, it is not necessary to increase the plate thickness of the mounting panel, and the weight of the vehicle body can be reduced.

[Brief description of drawings]

FIG. 1 is a perspective view showing a vehicle key cylinder mounting structure according to an embodiment of the present invention.

FIG. 2 is a plan view (a lever is omitted) viewed from a DA direction in FIG.

FIG. 3 is a side view seen from the DB direction in FIG.

FIG. 4 is a cross-sectional view taken along the line SA-SA shown in FIG.

FIG. 5 is a perspective view showing a conventional vehicle key cylinder mounting structure.

FIG. 6 is a perspective view showing a conventional mounting hole.

FIG. 7 is a plan view (a lever is omitted) viewed from a DC direction in FIG.

FIG. 8 is a side view seen from the DD direction in FIG.

[Explanation of symbols]

 1 Mounting Panel 2 Key Cylinder 3 Mounting Hole 4, 5 First Notch 6 Second Notch 10, 11 First Protrusion 12 Second Protrusion 12a Corresponding Surface 17 Flange 18 Retainer Clip 19 Protrusion 20 Recess 20a Curved Edge 20b opposite edge

Claims (4)

[Claims] 1. A mounting panel is formed with a circular mounting hole having at least one first notch and two symmetrical second notches, and a key is provided at least at an edge of the mounting hole adjacent to the first notch. A key cylinder having a flange bent in the mounting direction of the cylinder and having a first protrusion engaging with the first notch and a second protrusion passing through the second notch is mounted in the mounting hole. A recess is formed in the raised portion of the retainer clip from the tip side thereof, and the recess is inserted into the key cylinder to receive the key cylinder in the recess, and the opposite edge of the recess is provided with the second projection. In a vehicle key cylinder mounting structure in which a key cylinder is prevented from coming off by engaging with a corresponding surface of the portion, the recess of the retainer clip has a substantially U shape, and a curved edge of the recess serves as a first notch of the mounting hole. Correspondingly Cage, and with a flange is set higher than the raised portion of the retainer clip, the vehicle key cylinder attachment structure, characterized in that the curved edge portion is in the contact or proximity state with respect to the flange. 2. At the symmetrical positions of the mounting hole and the key cylinder,
The vehicle key cylinder mounting structure according to claim 1, wherein two first cutouts and two first protrusions are formed. 3. The side end of the flange on the side of the second notch is the second side.
The vehicle key cylinder mounting structure according to claim 1 or 2, which engages with a side surface of the protrusion. 4. The third cutout portion engaging with the first cutout portion is formed on the curved edge portion of the recessed portion.
The vehicle key cylinder mounting structure according to item.