JPH0996135A - Resin mold key - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a pinch part which is molded from synthetic resin while a holder receiving therein a key plate is inserted, which prevent occurrence of play of the key plate caused by 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 without deteriorating the assemblability and increasing the cost. SOLUTION: A hole 21 is formed in a holder 17, being communicated with a gap between the inner peripheral part of a storage part 18 and the outer peripheral part of a base part 14 of a key plate 11. Synthetic resin as a material for the pinch part 12 is introduced into the gap through this hole 21, and is filled in the gap, thereby it is possible to prevent occurrence of play of the key plate 11.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a resin mold key having a knob portion molded with a synthetic resin.

[0002]

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

[0003]

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

The gap is taken into consideration in assembling the base portion 3 of the key plate 2 into the first accommodating portion 5 of the holder 4, and the first portion of the holder 4 is designed to eliminate rattling. When the storage part 5 is formed to have the same size as the base part 3 of the key plate 2, the base part 3 of the key plate 2 is the first part of the holder 4.
It becomes difficult to store it in the storage portion 5, and the assembling property deteriorates.

Further, in order to prevent rattling of the key plate 2 while maintaining good assembling property, the first accommodating portion 5 of the holder 4 is formed to be larger than the base portion 3 of the key plate 2, and the holder 4 is kept. It is conceivable to bond the base portion 3 of the key plate 2 to the first storage portion 5 of the
In this case, an extra adhesive is required, and the number of steps is increased, resulting in high cost.

The present invention has been made in view of the above circumstances, and therefore an object thereof is a resin which can prevent the rattling of the key plate without deteriorating the assembling property and increasing the cost. To provide the mold key.

[0007]

To achieve the above object, in a resin-molded key according to the present invention, a knob portion is molded with a synthetic resin by inserting a holder in which a base portion of a key plate is stored in a storage portion. In the holder, 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 portion of the key plate in the holder.

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

[0009]

BEST MODE FOR CARRYING OUT THE INVENTION 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 portion 12. Of these, 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 width and a key groove 15 as shown in FIGS. Made of.

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 portion 14 of the key plate 11 is stored in the first storage portion 18,
An 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 when the vehicle is started, or an oscillator (transmitter) for remotely controlling locking and unlocking of the door of the vehicle.

Here, the first accommodating portion 18 of the holder 17 is formed to be slightly larger than the base portion 14 of the key plate 11 in consideration of the incorporation of the base portion 14 as shown in FIG. The base portion 14 of the plate 11 is attached to the first storage portion 1
In the state of being housed in 8, the gap G is formed between the outer peripheral portion of the base portion 14 of the key plates 11 and the first housing portion 18.

The first accommodating portion 18 is provided with the key plate 11
Although it has a substantially rectangular shape in conformity with the shape of the base portion 14 of FIG. 5, the corner portion 18a of the first storage portion 18 is shown in FIG. As shown in, 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 relationship, the gap G is wider than the other between the corner portions 18a and 14a. The holder 21 is formed with a hole 21 that communicates with. Furthermore, the corner part 1
8a and 14a exist in two places as shown in FIG.
Holes 21 are formed corresponding to the respective places, and in addition, each hole 21 is formed on both sides of the holder 17 (see FIG. 3).

Therefore, the knob portion 12 has the holder 17 accommodating the base portion 14 and the electronic component 20 of the key plate 11 inserted therein, and is located closer to the first accommodating portion 18 side of the holder 17 than the central portion of the knob portion 12. Molding is performed by injecting a synthetic resin from the biased insert boundary position 22 (see FIG. 1) of the key plate 11. In addition,
A hole 23 for a key holder is formed in the knob portion 12 and a decoration 24 is provided.

Now, in the case of the above-mentioned configuration,
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, the holder 1
Synthetic resin of the knob part molding material is introduced from the holes 21 of 7 and the gap G is filled with the introduced synthetic resin (see FIGS. 1 and 3). Thus, in the case of the present configuration, it is possible to prevent the key plate 11 from rattling without requiring an additional adhesive or the like, and it is possible to avoid an increase in the number of steps and an increase in cost.
Also, the first storage portion 18 of the holder 17 is the key plate 11
Since the base portion 14 of the key plate 11 can be easily accommodated in the first accommodating portion 18 of the holder 17, the base portion 14 of the key holder 11 can be easily accommodated, and the assemblability can be favorably maintained.

Further, in the case of this structure, the corner portion 18 of the first storage portion 18 of the holder 17 has the key plate 1
The radius of curvature is smaller than that of the corner portion 14 of the base portion 14 of the key plate 11 so that the base portion 14 of No. 1 can be sufficiently accommodated.
Since the hole 21 is wider than the other, and the hole 21 communicates with the wide gap G between the corner portions 18a and 14a and introduces the synthetic resin from there, the synthetic resin can be smoothly introduced, and the gap G It is possible to more reliably prevent the key plate 11 from rattling by filling it with a synthetic resin.

In addition, in the case of this structure, there are two corner portions 18a and 14a, and the hole 21 introduces the synthetic resin into the gap between the two corner portions 18a and 14a. Can be sufficiently introduced, and the gap G can be filled with a synthetic resin to prevent the rattling of the key plate 11 more reliably. The holder 17 may not store the electronic component 20, but may store only the base portion 14 of the key plate 11.

[0017]

The present invention is as described above.
It has the following effects. According to the resin mold key of claim 1, synthetic resin of the knob part molding material is introduced from the hole formed in the holder into the gap between the inner peripheral part of the housing 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 assembling property and increasing the cost.

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

FIG. 1 is an enlarged cross-sectional view of a knob portion showing an 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.

5 is an enlarged cross-sectional view of part A of FIG.

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

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

[Explanation of symbols]

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

Claims (3)

[Claims] 1. A holder, in which a base portion of a key plate is housed in a housing portion, is inserted into the knob portion and molded with a synthetic resin. In the holder, an inner peripheral portion of the housing portion and a base portion of the key plate are mounted on the holder portion. A resin molded key, characterized in that a hole for introducing the synthetic resin is formed in a gap between the outer peripheral portion and the outer peripheral portion. 2. The holder storage portion and the key plate base portion are approximately rectangular, and the corner portion of the holder storage portion has a smaller radius of curvature than the corner portion of the key plate base portion, and a gap between the corner portions. The resin mold key according to claim 1, wherein a hole is made to introduce a synthetic resin. 3. The resin-molded key according to claim 2, wherein a hole is made to introduce a synthetic resin into a gap between two corner portions.