JPH0624134Y2 - Insulation sleeve band for electrical connector - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION <Industrial field of application> The present invention relates to a long insulating sleeve band for an electric connector having a plurality of synthetic resin insulating sleeves for fixing and holding an electric connector element.

<Prior Art> Conventionally, as this type of insulating sleeve band, a unit length insulating sleeve band having a plurality of insulating sleeves at regular intervals in the longitudinal direction is provided, and is formed on one end side in the longitudinal direction. By connecting the connecting plate portion and the connecting plate portion of another insulating sleeve band formed by the same means as described above by welding in the molding die at the time of molding the latter insulating sleeve band, both insulating sleeve band The invention is disclosed in Japanese Patent Publication No. 61-10948 by the present inventor.

<Problems to be Solved by the Invention> The insulating sleeve band for electrical connector is formed by sequentially connecting unit length sleeve bands by molding in a replenishing manner. Since the molding die requires a smaller size than the one formed by molding, the equipment cost is low, and it can be manufactured in the process of molding the insulating sleeve band of unit length. On the other hand, there is a problem in that the strength of resisting the tensile strength along the longitudinal direction is not enough, but the strength of resisting the tensile strength along the longitudinal direction is not sufficient.

Therefore, in the present invention, the coupling force between the unit length insulating sleeve strips can be increased to a desired strength by adding a simple device to the structure of the connecting plate portion formed at one end of the unit length insulating sleeve strips. The main purpose is to provide an insulating sleeve band for an electric connector.

<Means for Solving the Problems> In order to achieve the above object, in an insulating sleeve band for an electric connector according to the present invention, a plurality of insulating sleeves (1) for holding an electric connector element, and these Insulation A joint plate part (2) that connects a plurality of sleeves (1) in a parallel posture and at a suitable distance from each other is integrally molded with a synthetic resin material to form an insulating sleeve band (3) of unit length. ) Is configured, and the connecting plate portion (2A) formed on one end side in the longitudinal direction of the insulating sleeve band (3) and another insulating sleeve formed by the same means as the insulating sleeve band (3). The connecting plate portion (2
A ') and the latter insulating sleeve strip (3) are welded and bonded together in the molding die during molding, so that both insulating sleeve strips (3), (3) are integrally connected in the longitudinal direction. In the insulating sleeve band for an electric connector, a connecting plate portion (2) formed at one longitudinal end of the insulating sleeve band (3).
A) is formed with a through engagement hole (2B ') for coupling with the engagement pin (4b) of the molding die (4), and the diameter of this engagement hole (2B') is the coupling pin (4b). ), The connecting plate (2A) is connected to the other insulating sleeve band (3).
It is sandwiched by (2A ′) and integrally fused in a state of being connected at the engaging hole 2B ′ around the engaging pin 4b.

<Operation> In the long insulating sleeve strip configured as described above, the connecting plate portion (2A) of one insulating sleeve strip (3) is connected by the connecting plate portion (2A ′) of the other insulating sleeve strip (3). Welded and bonded so as to be sandwiched from both the upper and lower sides, and during molding
Connecting hole (2B ') of connecting plate (2A) and connecting pin (4b) of mold (4)
Since the molten resin flows in and is filled in the gap formed between and, it is possible to impart a large resistance force to the tensile force in the longitudinal direction and the width direction of the insulating sleeve band.

<Embodiment> An embodiment of the present invention will be described below with reference to the drawings.

As shown in the figure, multiple cylindrical insulating sleeves for inserting and holding crimp terminals (A) that are electrical connector elements.
(1) ... and a connecting plate portion (2) for connecting these insulating sleeves in a parallel posture and at an appropriate interval.
And are integrally molded with a synthetic resin material to form an insulating sleeve band (3) of unit length. These insulating sleeve bands (3) of unit length are molded as follows. A long insulating sleeve band is formed by being connected along the longitudinal direction by means.

That is, a mold (4) composed of upper and lower split molds (4A), (4B) and a core mold (4C).
First, the insulating sleeve band (3) having a unit length is molded. This unit length insulation sleeve band (3) is a crimp terminal
Multiple cylindrical insulating sleeves for holding (A) (1)
, And a connecting plate portion (2) for connecting the insulating sleeves in parallel with each other at an appropriate interval, and a connecting plate portion (2A) formed at one end in the longitudinal direction. The lower split mold (4) of the mold is attached to the joint plate (2) and the connecting plate (2A).
Engagement holes (2B) and (2B ') that engage with the locking pin (4b) of B) are provided. And as shown in FIG. 4, the connecting plate portion
The diameter of the engagement hole (2B ') provided in (2A) is larger than the diameter of the connecting pin (4b) of the mold (4).

In this way the unit length of insulating sleeve strip (3) in the mold (4)
After molding, remove the upper split mold (4A) upward and move the core mold (4C) together with the insulating sleeve band (3) to an appropriate height, and place both ends of the insulating sleeve band (3) in a suitable chuck. After holding it with a sleeve (not shown), insert the core type (4C) into an insulating sleeve.
Pull out from (1). In this way, the insulating sleeve strip (3) is held with both ends held by the chuck.
(3) is moved horizontally to the side of the mold (4) (left side in the drawing), and the engaging hole (2B ′) of the connecting plate part (2A) of this is located on the left end side of the mold (4). Engage with the locking pin (4b) (see Figure 3).

In this state, close the die (4) and inject the fused resin material into the cavity of
Simultaneously with molding of (3), the connecting plate portion (2A) of the previous insulating sleeve band (3) is sandwiched between the connecting plate portions (2A ') from both upper and lower sides and weld-bonded (see FIG. 5). Then, by repeating this molding process, a long insulating sleeve band in which a plurality of unit length insulating sleeve bands (3) ... Are connected is manufactured.

The long insulating sleeve band constructed as described above can be connected to the upper and lower sides of the connecting plate part (2A) of one insulating sleeve band (3) by the connecting plate part (2A ') of the other insulating sleeve band (3). It is welded and joined so as to be sandwiched, and at the time of molding,
Connecting hole (2B ') of connecting plate (2A) and connecting pin (4b) of mold (4)
Since the molten resin flows in and is filled in the gap formed between and, it is possible to impart a large resistance force to the tensile force in the longitudinal direction and the width direction of the insulating sleeve band. Further, the coupling holes (2B) ... serve as locking holes for the automatic feeding device when the crimp terminal (A) is attached to the insulating sleeve (1) by an automatic machine.

<Effects of the Invention> Since the present invention is configured as described above, the connecting plate portion of one insulating sleeve band is welded and bonded so as to be sandwiched by the connecting plate portions of the other insulating sleeve band from above and below. At the same time, since the diameter of the engaging hole provided in the connecting plate portion is formed to be larger than the diameter of the connecting pin of the mold, the connecting hole of the connecting plate portion and the connecting pin of the mold are The molten resin flows in and is filled in the gap formed between them, which can significantly increase the bonding force between the insulating sleeve bands and provide a large resistance to the tensile force in the longitudinal and width directions of the insulating sleeve bands. There is a remarkable effect that it can be added.

[Brief description of drawings]

1 is a perspective view of a part of an insulating sleeve band for an electric connector according to the present invention, FIG. 2 is a sectional view showing a mold for manufacturing the insulating sleeve band, and FIG. 3 is an enlarged view showing a manufacturing process. FIG. 4 is a cross-sectional view, FIG. 4 is an enlarged perspective view showing a connecting plate portion of an insulating sleeve band and a part of a mold, and FIG. 5 is a perspective view showing a connecting state of insulating sleeve bands having a unit length. In the figure, (1) is an insulating sleeve, (2) is a connecting plate part, (2A) is a connecting plate part, (2B) and (2B ') are engaging holes, (3) is an insulating sleeve band of unit length, (4) is a mold, and (4b) is an engagement pin.

Claims (1)

[Scope of utility model registration request] 1. A synthetic resin comprising a plurality of insulating sleeves 1 for inserting and holding an electrical connector element, and a joint plate portion 2 for connecting the insulating plurality of sleeves 1 in a parallel posture and at appropriate intervals. An insulating sleeve strip 3 having a unit length is integrally molded with a material to form an insulating sleeve strip 3. The insulating sleeve strip 3 has a connecting plate portion 2A formed at one longitudinal end thereof and the insulating sleeve strip 3 described above. And a connecting plate portion 2A 'formed on the other end side in the longitudinal direction of another insulating sleep band 3 formed by the same means as above are welded and coupled in the molding die at the time of molding the latter insulating sleeve band 3. Thus, in the insulating sleeve band for an electric connector formed by integrally connecting both insulating sleeve bands 3 and 3 in the longitudinal direction, a connecting plate portion 2A formed at one longitudinal end of the insulating sleeve band 3 ... , Through engaging holes 2B that bind to the engagement pin 4b of the mold 4 'is formed, the engagement hole 2
The diameter of B'is formed to be larger than the diameter of the connecting pin 4b, and the connecting plate portion 2A has the other insulating sleeve strip 3
The insulating sleeve strip for an electric connector, which is sandwiched between the connecting plate portions 2A 'and is fused together in a state of being connected at the engaging hole 2B' around the engaging pin 4b.