JPH04363479A - How to install a vehicle key cylinder - Google Patents

Abstract

PURPOSE:To rapidly, easily and precisely align a key insertion hole in a lens and a key insertion hole in a cylinder. CONSTITUTION:An inner cylinder 6a in a housing 6 is closely fitted into a key cylinder B, and a leg 7a of a lens 7 is loosely fitted in a seal groove 6b in the housing 6. Further, a key insertion hole 7b is aligned with the seal groove 6b with a range of play given by the loose fit, and then they are bonded and fixed together by hot-melt 12.

Description

[Detailed description of the invention]

0001

[Industrial Field of Application] The present invention relates to a method for attaching a key cylinder combined with a lens to a vehicle body, which allows for quick and easy attachment without requiring special skill, and which allows the key cylinder to be attached to the key insertion hole of the lens. The present invention relates to an improved mounting method in which a key insertion hole of a key cylinder is fixed in an accurate relative positional relationship and there is no risk of spoiling the appearance.

0002

2. Description of the Related Art A conventional vehicle key cylinder mounting structure will be described below with reference to FIGS. 2 to 4. In the figure, A is a vehicle body panel such as a vehicle body. B is a key cylinder, and a bolt 5 is installed in the bottom of this key cylinder B. C is another vehicle part, which in this example is a rear finisher, and this rear finisher C consists of a housing 1 and lenses 2 and 3.

Adhesive recesses 10 are provided on the entire periphery of the housing 1.
At the same time, two adhesive recesses 11 are provided in the horizontal center of the housing 1. A through hole 13 is provided in the housing 1 at a location where the key cylinder B is located. A mounting seat 14 is integrally provided on the back surface of the housing 1, and a bolt 15, a packing 16, and a washer 17 are mounted on the mounting seat 14. Adhesive legs 2 are attached to the entire periphery of the lenses 2 and 3.
0 and 30 are provided. A key insertion hole 21 is provided at the location where the key cylinder B of the upper lens 2 is located, and a leg portion 2 is formed from the periphery of the key insertion hole 21 of the upper lens 2.
2 is integrally installed at the rear. The adhesive legs 20 and 30 of the lenses 2 and 3 are attached to the adhesive recess 1 of the housing 1.
0 and 11 with an adhesive 12 such as hot melt, and the tips of the legs 22 of the upper lens 2 are fixed to the housing 1 by ultrasonic welding. The above-described through hole 13 of the housing 1 and the key insertion hole 21 and leg portion 22 of the upper lens 2 constitute the insertion hole D of the key cylinder B. As a result, the upper lens 2 and the upper half of the housing 1
The sealed chamber 41 and the lower second sealed chamber 42 are defined by the lower lens 3 and the lower half of the housing 1 .

Reference numeral 71 denotes a first molding attached to the upper lens 2 and lower lens 3 with a protector 73 interposed therebetween, and 72 denotes a second molding attached to the lower edge of the lower lens 3 with a protector 74 interposed therebetween. , 75 is the upper lens 2
This is a protector interposed between the upper edge of the vehicle body A and the vehicle body A. In the figure, E denotes rear combination lamps arranged on the left and right sides of the rear finisher C.

[0005] Attach the key cylinder B to the vehicle body A by bolt 5.
At the same time, the rear finisher C is attached to the vehicle body panel A with bolts 15 and nuts 18, and the key cylinder B is inserted into the insertion hole D of the rear finisher C. Then, the temporarily fixed key cylinder B is permanently fixed to the vehicle body panel A by aligning the center A of the key cylinder B with the center roller of the insertion hole D of the rear finisher C. In such a vehicle key cylinder mounting structure, as shown in FIG.
If the center of 1) is eccentric, it will look bad and spoil the sense of luxury. Therefore, the work of centering the center E of the key cylinder B and the center roller of the insertion hole D of the rear finisher C, that is, the centering work of the key cylinder B, is carefully and meticulously performed.

[0006]

[Problems to be Solved by the Invention] In the conventional technology, even if the key cylinder B is precisely positioned with respect to the vehicle body panel A as explained with reference to FIG. The center does not necessarily match with the key insertion hole 21. The reason for this is that, as understood from FIG. 3, the key cylinder B is fixed to the vehicle body panel A, and the housing 1 is fixed to the vehicle body panel A. 2 is fixed. For this reason, manufacturing errors of each component and assembly errors of each component are accumulated, so the key insertion hole of the key cylinder B and the key insertion hole 21 of the lens 2 may coincide with each other by chance. There are times when it becomes extremely off-center.

[0007] Therefore, if an attempt is made to solve this problem using assembly technology, a high degree of skill is required, and furthermore, a great deal of time and labor is required. The present invention has been made in view of the above-mentioned circumstances, and is an installation method that allows the key insertion hole of the key cylinder and the key insertion hole of the lens to be precisely aligned quickly and easily without requiring special skill. The purpose is to provide a method.

[0008]

[Means for Solving the Problems] The basic principle of the key cylinder mounting method according to the present invention created to achieve the above object is as follows. In the prior art described with reference to FIG. 3, the car body panel A is used as a reference, the key cylinder B is also fixed to the car body panel A, the housing 1 is also attached to the car body panel A, and this is used as a second reference; lens 2
can be installed. For this reason, the accumulation of dimensional errors and mounting errors of the parts will be wrinkled as a displacement between the key cylinder B and the lens 2.

[0009] Therefore, by completely changing the preconceived concept in the conventional technology, a housing is attached to a vehicle body panel, a lens is loosely fitted to the housing, and the key cylinder and lens are connected within the range of play of the loose fitting. The parts are aligned and fixed with adhesive in this aligned state.

As a specific method based on the above-mentioned principle, the present invention provides a method for attaching a key cylinder having a key insertion hole and a lens covering the key cylinder to a vehicle body.
The key cylinder is fixed to the vehicle body, a housing that tightly fits the key cylinder is externally fitted and fixed to the key cylinder, a lens is loosely fitted to the lamp housing, and the above housing is fixed. Position the lens so that the key insertion hole of the lens directly faces the key insertion hole of the key cylinder within the range of loose fitting play, and while maintaining the above position, insert the lens against the housing. It is characterized by being glued and fixed.

[0011]

[Operation] According to the means for solving the problems described above, the housing is positioned relative to the key cylinder, the lens is loosely fitted to the housing, and within the play of this loose fitting. The lens and key cylinder are positioned.

As a result, the key cylinder and the lens are directly positioned (aligned) with respect to each other, regardless of manufacturing errors or assembly errors of the individual constituent members. Therefore, the key insertion hole of the key cylinder and the key insertion hole of the lens can be assembled concentrically quickly and easily without special skill required, and there is no risk of damaging the appearance, increasing the product value. Excellent practical effects can be obtained.

[0013]

DESCRIPTION OF THE PREFERRED EMBODIMENTS FIG. 1 is a cross-sectional view showing an example of a vehicle key cylinder assembly structure configured to carry out the method of the present invention. Reference numeral 6 denotes a housing made of synthetic resin, in which an inner cylinder 6a that fits tightly with the key cylinder B is integrally molded in the center, and around the inner cylinder 6a there is a non-circular (in this example, approximately A rectangular seal groove 6b is integrally molded. The outer lens 7 is integrally molded with a leg 7a that loosely fits into the seal groove 6b and projects rearward (downward in the figure). The outer lens 7 is mainly a decorative lens and is made of transparent synthetic resin, and has a key insertion hole 7b in the center and a prism 7c on the inner surface. 8 is a decorative inner lens.

To assemble the key cylinder B constructed as described above, the key cylinder B is attached and fixed to the vehicle body panel A using bolts 5 and nuts 50. This work does not require any particular installation precision and allows for errors consistent with general tolerances for vehicle exterior parts. The housing 6 is attached to the key cylinder B attached to the vehicle body panel A.
The inner cylinder 6a is fitted onto the outside, and an appropriate tightening allowance is provided, and then press-fitted and fixed.

Hot melt 12, which is a heat-softening adhesive, is injected in a molten state into the seal groove 6b of the housing 6 fixed to the key cylinder B, and the inner lens 8 is inserted into the housing 6. The leg 7a of the outer lens 7 is inserted into the hot melt 12 in the seal groove 6b.

While the hot melt 12 has fluidity, hold the outer lens 7 with your fingertips and align its key insertion hole 7b with the key insertion hole b of the key cylinder B.

As described above, the hot melt 12 is allowed to cool while the key insertion holes are aligned, and the hot melt 12 is cooled and solidified.

As a result, the outer lens 7 is fixed with its key insertion hole 7b directly facing the key insertion hole b of the key cylinder B. Specifically, it is fixed to the key cylinder B via the housing 6.

[0019] In the above-mentioned installation work, there are no parts that require particularly high precision in the installation of each component. Therefore, no special skill is required and construction can be carried out quickly and reliably.

[0020]

Effects of the Invention As explained above, in the method of attaching a key cylinder having a key insertion hole and a lens covering the key cylinder to a vehicle body, the key cylinder is fixed to the vehicle body, and the key cylinder is closely connected to the key cylinder. Fit the housing to be fitted onto the key cylinder and secure it, loosely fit the lens into the lamp housing, and insert the key insertion hole of the lens into the key cylinder within the play of the gentle fit. Position the lens so that it directly faces the key insertion hole, and while maintaining the above positioning, glue and fix the lens to the housing, the housing will be positioned relative to the key cylinder, and the housing will be positioned relative to the key cylinder. The lens is loosely fitted into the key cylinder, and the lens and the key cylinder are positioned within the play of this loose fit.

As a result, the key cylinder and the lens are directly positioned (aligned) with respect to each other, regardless of manufacturing errors or assembly errors of the individual constituent members. Therefore, the key insertion hole of the key cylinder and the key insertion hole of the lens can be assembled concentrically quickly and easily without requiring special skill, and there is no risk of damaging the external fitting, increasing the product value. An excellent practical effect can be obtained.

[Brief explanation of the drawing]

FIG. 1 is a sectional view showing an example of a key cylinder mounting structure configured to carry out the key cylinder mounting method according to the present invention.

[Figure 2] External view of a rear finisher with a lens equipped with a key cylinder

[Fig. 3] A cross-sectional view of a barrel illustrating the key cylinder mounting structure according to the prior art.

[Fig. 4] Schematic diagram for explaining the problems in the above conventional technology

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1... Housing, 2... Lens, 3... Lens, 5... Bolt, 6... Housing, 6a... Inner cylinder, 6b... Seal groove, 7...
Outer lens, 7a...Leg, 7b...Key insertion hole, 7c...Prism, 8...Inner lens, A...Vehicle body panel, B...Key cylinder, b...Key insertion hole of the key cylinder.

Claims (1)

[Claims] 1. A method for attaching a key cylinder having a key insertion hole and a lens covering the key cylinder to a vehicle body, comprising: a housing that fixes the key cylinder to the vehicle body and tightly fits the key cylinder; Fit the lens externally onto the above key cylinder and fix it, and then gently fit the lens into the above lamp housing, and within the play of the above loose fit, insert the key insertion hole of the lens into the key insertion hole of the key cylinder. position the lens so that it directly faces the
A method for attaching a vehicle key cylinder, characterized by bonding and fixing the lens to the housing while maintaining the above positioning.