JP2500392B2 - CONSOLID ARLOCK AND METHOD OF MANUFACTURING THE SAME - Google Patents

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a console door lock member for opening and closing a console box of an automobile and a method for manufacturing the same.

[0002]

2. Description of the Related Art In a console box of an automobile, one end of a console door is pivotally supported and the other end swings up and down to open and close the console box. A lock member is provided at the other end of the console door, and the lock can be engaged / disengaged by engaging / disengaging the lock member with an engaging hole provided in the console box. As this lock member,
For various reasons such as design and cost, resin products have been used conventionally. There are known those formed integrally with the back plate of the console door, or those formed with a lock member separately and then fixed to the console door.

The lock member includes a fixed portion fixed to the console door, an operating portion extending from one end of the fixed portion, an engaging claw protruding from the operating portion and engaging with an engaging portion provided on the console box. It is composed of an elastically deformable hinge part interposed between the fixed part and the operating part, and the engaging claw and the engaging part are engaged and disengaged by swinging the operating part around the hinge part. is there. The fixed portion, the operating portion, the engaging claws and the hinge portion are integrally formed by injection molding or the like.

[0004]

By the way, in the locking member integrally formed of the thermoplastic resin, there is a case where the molding deformation at the time of molding, the deformation in a half-balanced state after use after molding, and the like occur. In the deformed lock member, the accuracy of engagement of the engaging claw with the engaging portion decreases. Therefore, it is possible to configure the lock member from a plurality of parts so that the accuracy of engagement is not affected by the deformation, but there is a problem in that the complexity and cost of management increase as the number of parts increases.

The present invention has been made in view of the above circumstances, and an object thereof is to provide an inexpensive lock member without deformation and to manufacture the lock member as cheaply as possible.

[0006]

Means for Solving the Problems A first method for solving the above problems is described below.
The console door lock of the invention of, a fixed portion fixed to the console door, an operation portion extending from one end of the fixed portion,
It consists of an engaging claw that protrudes from the operation part and engages with the engagement part provided on the console box, and an elastically deformable hinge part that is interposed between the fixed part and the operation part. In a resin console door lock in which the engaging claw and the engaging part are disengaged by rocking the insert metal plate embedded in the fixing part and the operating part and the hinge part is exposed. It is characterized by being composed of a part of.

The insert metal plate is preferably formed of a metal having spring elasticity. The resin that occupies the majority of the console door lock can be selected from various thermoplastic resins such as polyolefin and nylon.
The second invention, which is the most desirable method for manufacturing the console door lock, is to dispose a flat plate-shaped insert metal plate on one mold surface of a pair of split dies and to force the insert metal plate to close the split dies. Pressing process that bends into a predetermined shape and holds it in the split mold, and molding that injects resin into the cavity that is formed in the split mold and that includes a part of the insert metal plate to form the fixed part, the operating part, and the engaging claw. It is characterized in that the steps and are sequentially performed.

The greatest feature of the second invention is that the insert metal plate is bent when the mold is closed. As a result, the mold can be closed and bent at the same time,
There is no increase in man-hours and it is possible to suppress an increase in cost. After the bending process, it is difficult to form a cavity in the bent portion because both split molds come into contact with the bent portion of the insert metal plate. However, in the present invention, since the bent portion serves as the hinge portion of the console door lock, there is no need to cover it with resin, which is really convenient.

[0009]

In the console door lock of the present invention, the insert metal plate is embedded. Further, the hinge portion is composed of a part of the exposed insert metal plate. Therefore, deformation is unlikely to occur and stable hinge characteristics can be obtained. Further, there is no problem that the number of parts increases, and it can be handled in the same manner as in the past, and the cost is low.

In the manufacturing method of the present invention, the insert metal plate is bent when the mold is closed. Therefore, the bending step and the forming step can be continuously performed, and an increase in the number of steps can be suppressed.

[0011]

EXAMPLES The present invention will be specifically described below with reference to examples. FIG.
2 shows a console door lock according to an embodiment of the present invention. The console door lock 1 is fixed to the door 101 of the console box 100 shown in FIG.
1 is attached to and detached from the console box 100.
This console door lock 1 is a console door 101
A fixed portion 10 fixed to the fixed portion 10, an operation portion 11 extending from one end of the fixed portion 10, an engagement claw 12 that protrudes from the operation portion 11 and engages with an engagement portion 102 provided on the console box 100, and the fixed portion 10. The hinge portion 21 is interposed between the operation portion 11 and the operation portion 11 and is elastically deformable, and the bridge portion 13 that connects the fixed portion 10 and the operation portion 11 to each other. The U-shaped sheet metal insert 2 shown in FIG. 3 is embedded in the fixed portion 10 and the operation portion 11. And 2 which penetrates the fixed part 10
Individual mounting holes 14 are formed and can be fixed to the back surface of the door 101 with screws.

The insert 2 is made of spring steel or stainless steel, and has a base portion 20 and a pair of hinge portions 21 bent at substantially right angles from both ends of the base portion 20 and further bent at substantially right angles.
And a pair of leg portions 22 extending from the hinge portion 21 in parallel with the base portion 20. Mounting holes 14 on the base 20
A pair of through holes 23 corresponding to Further, a plurality of through holes 24 are formed in the base portion 20 and the leg portion 22,
It is possible to connect the resin on both surfaces. Insert 2
The base portion 20 is embedded in the fixed portion 10, and the leg portions 22 are embedded in the operation portion 11. Then, only the hinge portion 21 is exposed without being buried. Next, a method for manufacturing the console door lock 1 will be described. First, it is punched out from spring steel to form an insert front body 2'having a U-shape and having a plurality of through holes. The insert front body 2 ′ has a shape in which the insert 2 is not bent.

This insert front body 2'is arranged on the mold surface of the fixed mold 3 as shown in FIG. At this time, the pressing pin 40 projects from the movable die 4, and the pressing pin 40 and the movable die 3 sandwich the insert front body 2 ′. Movable type 4 in that state
Is driven in the direction of approaching the fixed die 3, and a pressing step of bending the insert front body 2'at the same time as closing the die is performed. As a result, as shown in FIG. 6, the insert 2 having the bent hinge portion 21 is arranged in the mold. At this time, the leg portion 22 is located inside the first cavity 30, and the base portion 20 is located inside the second cavity 31. The first cavity 30 and the second cavity 31 are communicated with each other by a third cavity (not shown) forming the bridge portion 13. In the first cavity 30, the operation portion 11 and the engaging claw 12 are formed,
The fixing portion 10 is formed in the cavity 31. The hinge portion 21 is closely sandwiched between the fixed die 3 and the movable die 4.

Molten nylon resin is injected from a gate (not shown), all cavities are filled and injection molding is performed to integrally form a console door lock 1 having an insert 2. At this time, the resin is through hole 24
It is also filled inside, and the insert 2 is firmly integrated with the molded body. Note that the first cavity 30 and the second cavity 31 may be provided with gates without the bridge portion 13 and injection molding may be performed.

In the console door lock 1 of this embodiment,
The fixing portion 10 is fixed to the door 101 with a screw through the mounting hole 14. Then, the engaging portion 12 is swung by swinging the operation portion 11 by the hinge portion 21 to engage and disengage with the engaging portion 102. That is, according to the console door lock 1 of the present embodiment, the insert 2 is embedded and the hinge portion 21 is provided.
Since it is constituted by a part of the insert 2, thermal deformation does not occur and stable quality is obtained. In addition, the number of parts at the time of assembly does not increase, and the process can be performed in the same manner as in the past. Since the insert is bent at the same time as the mold is closed, the number of steps is small and the productivity is high.

It is preferable that the surface of the hinge portion 21 is covered with resin. By doing this, rust of the insert 2 is prevented. This resin may be coated at the time of molding or may be laminated on the insert in advance. In the latter case, there is an effect of preventing damage during bending.

[Brief description of drawings]

FIG. 1 is a perspective view of a console door lock according to an embodiment.

FIG. 2 is a side view of the console door lock according to the embodiment.

FIG. 3 is a perspective view of an insert used in an example.

FIG. 4 is a perspective view of a console box.

FIG. 5 is a cross-sectional view showing a state of the mold before the mold is closed.

FIG. 6 is a cross-sectional view showing a state of the mold after the mold is closed.

[Explanation of symbols]

1: Console door lock 2: Insert 3: Fixed type 4: Movable type 10: Fixed part 11: Operating part 12: Engaging claw
13: Bridge part 14: Mounting hole 20: Base part 21: Hinge part 22: Leg part

Claims (2)

(57) [Claims] 1. A fixing portion fixed to a console door,
An operating portion extending from one end of the fixing portion, an engaging claw protruding from the operating portion and engaging with an engaging portion provided on the console box, and interposed between the fixing portion and the operating portion and elastically deformable A hinge portion, and a resin console door lock that engages and disengages the engaging claw and the engaging portion by swinging the operating portion around the hinge portion. A console door lock, wherein an insert metal plate is embedded in the operation part, and the hinge part is constituted by a part of the insert metal plate exposed. 2. A fixing portion fixed to the console door,
An operating portion extending from one end of the fixing portion, an engaging claw protruding from the operating portion and engaging with an engaging portion provided on the console box, and interposed between the fixing portion and the operating portion and elastically deformable A hinge part, and a method of manufacturing a resin console door lock, wherein the operating claw is pivoted around the hinge part to engage and disengage the engaging claw and the engaging part. A pressing step of disposing a flat plate-shaped insert metal plate on one of the mold surfaces of the pair of split molds, bending the insert metal plate into a predetermined shape by a force closing the pair of split molds, and holding the insert metal plate in the split molds; A molding step of injecting a resin into a cavity formed in the split mold and including a part of the insert metal plate to form the fixing portion, the operating portion and the engaging claw is sequentially performed. Manufacturing method of console door lock.