JP3119575B2 - Resin mold key - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a resin molded key in which a knob is molded with a synthetic resin.

[0002]

2. Description of the Related Art Conventionally, as a key for a vehicle, for example, as shown in FIGS. 6 and 7, a knob 1 is molded with a synthetic resin. In this case, the base 3 of the key plate 2 is stored in the first storage section 5 of the holder 4, and other necessary components (for example, electronic components such as transponders) 6 are stored in the second storage section 7 of the holder 4. The knob 1 is molded by inserting a base 4 of the key plate 2 and a holder 4 in which other necessary parts 6 are stored.

[0003]

However, in this case, the first storage portion 5 of the holder 4 is slightly larger than the base portion 3 of the key plate 2 and the key space is increased by the amount of the gap formed therebetween. There is a problem that the plate 2 rattles even after the knob portion 1 is molded.

[0004] The gap is provided in consideration of the incorporation of the base 3 of the key plate 2 into the first accommodating portion 5 of the holder 4. When the storage portion 5 is formed in the same size as the base 3 of the key plate 2, the base 3 of the key plate 2
Is difficult to be stored in the storage section 5, and the assemblability deteriorates.

[0005] Further, in order to eliminate the backlash of the key plate 2 while maintaining good assemblability, the first storage portion 5 of the holder 4 is formed larger than the base portion 3 of the key plate 2. It is conceivable to attach the base 3 of the key plate 2 to the first storage section 5 with an adhesive, however,
In this case, an extra adhesive is required and the number of steps is increased, resulting in an increase in cost.

SUMMARY OF THE INVENTION The present invention has been made in view of the above circumstances, and it is therefore an object of the present invention to provide a resin capable of preventing rattling of a key plate without deteriorating assemblability and increasing costs. To provide a mold key.

[0007]

In order to achieve the above object, in a resin mold key according to the present invention, a knob is inserted into a holder in which a base of a key plate is housed in a housing and molded with a synthetic resin. And a hole for introducing the synthetic resin is formed in a gap between an inner peripheral portion of the storage portion and an outer peripheral portion of a base of the key plate in the holder.

According to the above-mentioned means, the synthetic resin of the knob molding material is introduced from the hole formed in the holder to the gap between the inner peripheral portion of the housing portion of the holder and the outer peripheral portion of the base of the key plate. The gap is filled with the introduced synthetic resin, and the play of the key plate is eliminated.

[0009]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below.
This will be described with reference to FIGS. First, FIG. 2 shows the key plate 11 and the knob 12. The key plate 11 is made of metal and has a substantially rectangular base portion 14 having a hole 13 and a long insertion portion 16 having a narrower key groove 15 as shown in FIGS. Consists of

FIGS. 1 and 3 show a holder 17, which is made of synthetic resin and has a first storage portion 18 and a second storage portion 19. The base 14 of the key plate 11 is stored in the first storage 18,
The electronic component 20 is stored in the second storage section 19. The electronic component 20 is, for example, an oscillator (transponder) for identifying the owner at the time of starting the vehicle, and an oscillator (transmitter) for remotely controlling locking and unlocking of the door of the vehicle.

Here, the first storage portion 18 of the holder 17 is formed slightly larger than the base portion 14 of the key plate 11 as shown in FIG. The base portion 14 of the plate 11 is
8, a gap G is formed between the outer periphery of the base portion 14 of the key plate 11 and the first storage portion 18.

The first storage section 18 is provided with the key plate 11.
The base portion 14 of the key plate 11 is substantially rectangular, but the corner portion 18a of the first storage portion 18 is formed so that the base portion 14 of the key plate 11 can be sufficiently stored (not to be used). As shown in the figure, the radius of curvature is smaller than that of the corner portion 14a of the base portion 14 of the key plate 11, and in this relation, the gap G is wider than those between the corner portions 18a and 14a. The holder 17 is formed with a hole 21 communicating with the hole 17. Furthermore, corner 1
8a and 14a exist in two places as shown in FIG.
Holes 21 are formed at corresponding locations, and in addition, each hole 21 is formed on both the front and back sides of the holder 17 (see FIG. 3).

The knob 12 inserts the base 17 of the key plate 11 and the holder 17 accommodating the electronic component 20 so that the center of the knob 12 is closer to the first accommodating portion 18 of the holder 17. Molding is performed by injecting a synthetic resin from the deviated insert boundary position 22 of the key plate 11 (see FIG. 1). In addition,
The knob portion 12 has a key holder hole 23 and a decoration 24.

By the way, in the case of the structure as described above,
In the gap G between the inner peripheral portion of the first storage portion 18 of the holder 17 and the outer peripheral portion of the base portion 14 of the key plate 11, a holder 1 is provided.
The synthetic resin of the pinch molding material is introduced from each of the holes 21 of No. 7, and the gap G is filled with the introduced synthetic resin (see FIGS. 1 and 3). Thus, in the case of this configuration, it is possible to prevent rattling of the key plate 11 without requiring an extra adhesive or the like, and it is possible to avoid an increase in man-hours and an increase in cost.
The first storage portion 18 of the holder 17 is provided with the key plate 11.
The base 14 of the key plate 11 can be easily stored in the first storage portion 18 of the holder 17 and the assemblability can be maintained satisfactorily.

Further, in the case of this configuration, the corner portion 18 of the first storage portion 18 of the holder 17 is
The base G of the key plate 11 has a radius of curvature smaller than that of the corner 14 so that the base 14 can be sufficiently housed.
The hole 21 is wider than the others, and the hole 21 passes through the wide gap G between the corner portions 18a and 14a and the synthetic resin is introduced from there. Therefore, the synthetic resin can be smoothly introduced, and the gap G is formed. The key plate 11 can be more reliably prevented from rattling by being filled with a synthetic resin.

In addition, in the case of this configuration, there are two corners 18a and 14a, and the holes 21 introduce the synthetic resin into the gap between the two corners 18a and 14a. Can be sufficiently introduced, and the gap G can be filled with a synthetic resin to further prevent the key plate 11 from rattling. The electronic component 20 may not be stored in the holder 17, and only the base 14 of the key plate 11 may be stored.

[0017]

The present invention is as described above.
The following effects are obtained. According to the resin mold key of claim 1, a synthetic resin of a knob part molding material is introduced from a hole formed in the holder into a gap between the inner peripheral part of the storage part of the holder and the outer peripheral part of the base part of the key plate, Since the gap can be filled with the introduced synthetic resin, it is possible to prevent the key plate from rattling without deteriorating the assemblability and increasing the cost.

According to the resin mold key of the second aspect, the synthetic resin can be more smoothly introduced into the gap, and rattling of the key plate can be more reliably prevented. According to the resin mold key of the third aspect, the synthetic resin can be sufficiently introduced into the gap, and the rattling of the key plate can be more reliably prevented.

[Brief description of the drawings]

FIG. 1 is an enlarged cross-sectional view of a knob showing one embodiment of the present invention.

FIG. 2 is a plan view of the entire key.

FIG. 3 is an enlarged vertical sectional view of a knob portion.

FIG. 4 is a plan view of a holder.

FIG. 5 is an enlarged transverse sectional view of a portion A in FIG. 4;

FIG. 6 is a diagram corresponding to FIG. 2 showing a conventional example.

FIG. 7 is a diagram corresponding to FIG. 1;

[Explanation of symbols]

Reference numeral 11 denotes a key plate, 12 denotes a knob, 14 denotes a base of the key plate, 17 denotes a holder, 18 denotes a first storage portion (storage portion), 21 denotes a hole, and G denotes a gap.

Claims (3)

(57) [Claims] 1. A knob formed by inserting a holder in which a base of a key plate is stored in a storage portion and molding the knob with synthetic resin, wherein the holder has an inner peripheral portion of the storage portion and a base of the key plate. A resin mold key, wherein a hole for introducing the synthetic resin is formed in a gap between the resin mold key and an outer peripheral portion. 2. The storage portion of the holder and the base of the key plate are substantially rectangular, the corner of the storage portion of the holder has a smaller radius of curvature than the corner of the base of the key plate, and a gap between these corners is provided. The resin mold key according to claim 1, wherein the hole is adapted to introduce a synthetic resin. 3. The resin mold key according to claim 2, wherein a hole is provided for introducing synthetic resin into a gap between two corner portions.