JP2002324620A - Waterproof stopper push-in device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a waterproof stopper push-in device enabled to sharply improve workability when mounting a waterproof stopper to a connector. SOLUTION: The waterproof stopper push-in device 20 for use in mounting a rubber stopper (a waterproof stopper) sealing a cavity 12 of a connector 10, to a principal mounting part 12a, integrally comprises a cylinder-shaped loading part 21 loading the rubber stopper therein, and a pressurizing mechanism 22, jointed to the mounting part 21, pushing out the rubber stopper held at the loading part 21 from an inner space of the mounting part 21 to a top end side through hole. A guiding hole 21a, guiding the rubber stopper from side part to inside, is formed to the loading part 21.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a waterproof plug pushing device.

[0002]

2. Description of the Related Art Generally, a connector has a cavity formed therein for accommodating a metal terminal in a resin housing.

[0003] Some of such connectors are referred to as waterproof connectors. The waterproof connector is provided with a rubber ring over the electric wire connected to the terminal inserted into the cavity, and the rubber ring seals the gap between the cavity and the electric wire, so that the liquid in the cavity is sealed. This achieves connection with the mating connector while maintaining the tightness.

When the waterproof connector is a multi-pole connector having a plurality of cavities, terminals are not always inserted into all cavities, and terminals may be inserted only into predetermined cavities. In this case, if the cavity in which the terminal is not inserted is left open, foreign matter and water enter from here, and the function as a waterproof connector cannot be exhibited.

In view of the above, various waterproof plug pushing devices for mounting a waterproof plug for sealing in an unused cavity have heretofore been proposed.

[0006] For example, the present applicant has proposed a rubber plug attachment tool which was previously patented (Japanese Patent No. 3109423).
issue). The main point is a rubber plug mounting tool used when mounting a waterproof rubber plug in a predetermined cavity among a plurality of cavities formed in a housing of the waterproof connector, and holds the rubber plug. The point is that the holding portion is positioned by the fitting portion that fits with the housing, and the rubber plug positioned by the rubber plug pressing mechanism provided in the fitting portion is inserted into the cavity.

[0007]

In the above prior art, the rubber plug is held by a predetermined rubber plug holding portion provided in the fitting portion in advance, and the housing of the connector is fitted to the fitting portion in this state. By doing so, the rubber plug to be mounted can be inserted and mounted in the housing, so that the positioning of the rubber plug can be performed collectively, and the mounting operation can be performed at once.

However, when attaching the rubber plug to the rubber stopper holding portion, it is necessary for the operator to carefully attach the rubber stopper one by one with a fingertip. This mounting operation was a step with poor workability, in combination with the fact that the rubber stopper was a member having a very small diameter.

SUMMARY OF THE INVENTION The present invention has been made in view of the above-mentioned problems, and has as its object to provide a waterproof plug push-in device capable of dramatically improving the workability when attaching a waterproof plug to a connector.

[0010]

SUMMARY OF THE INVENTION In order to solve the above-mentioned problems, the present invention relates to a waterproof plug push-in device for mounting a waterproof plug for sealing a cavity of a connector to a main mounting portion, the device comprising: And a pressurizing mechanism that is connected to the loading section and that pushes the waterproof plug held by the loading section from the base end side to the distal end side of the loading section. And an introduction hole for introducing the waterproof plug from the side into the inside thereof is formed in the loading section.

[0011] In the present invention, the waterproof plug is held in the loading section,
Activating the pressurizing mechanism with the distal end of the loading section facing the essential part of the waterproof plug beforehand, pushes out the retained waterproof plug from the base end of the loading section to the distal end to easily attach it. It becomes possible to attach to the part. Here, in the present invention,
Since the introduction hole for introducing the waterproof plug is provided on the side of the loading portion formed in a cylindrical shape, even when the waterproof plug is lying down and rolling, the introduction hole is kept in the same posture. The waterproof plug can be easily loaded into the loading section just by pushing the cover toward the waterproof plug and pushing it into the inside or scooping it. As a result, not only the mounting of the waterproof plug on the main mounting portion, but also the loading operation on the loading portion becomes very easy, and the workability is improved.

In the present invention, the "waterproof plug" is mainly a rubber plug, but does not necessarily need to be made of a rubber material. Also, "the main part of the waterproof plug"
It may be a cavity of a connector, or a waterproof plug holding portion provided on a mounting tool for mounting a waterproof plug simultaneously in a plurality of cavities.

It is preferable that the loading section is a waterproof plug push-in device characterized in that a pair of parallel chamfers are formed on the outer surface of the distal end.

According to this aspect, the chamfered portion allows
Even when the main mounting parts are arranged at narrow intervals, it is possible to prevent the other main mounting parts from interfering with the tip of the loading part, so that the waterproof plug can be more efficiently and accurately attached to the connector. it can.

[0015] Further, it is preferable that the distal end of the loading section is a waterproof plug push-in device characterized in that it has a positioning projection corresponding to the undulation of the mounting main part.

According to this aspect, when the waterproof plug is attached to the connector, the mounting portion can be positioned at the main mounting portion by the projection at the front end of the mounting portion, so that the position of the front end of the mounting portion relative to the main mounting portion is stable. As a result, the waterproof plug can be accurately attached to the connector.

[0017]

Preferred embodiments of the present invention will be described below in detail with reference to the accompanying drawings.

FIG. 1 shows a waterproof connector 1 according to the present embodiment.
FIG. 2 is a perspective view showing a schematic configuration of a zero.

Referring to FIG. 1, the illustrated waterproof connector 10 according to this embodiment has a resin housing 11 in which a cavity 12 for accommodating a metal terminal (not shown) is formed. (Attached parts indicated by reference numeral 12a in the figure) are designed to be fitted with a rubber plug 13 for sealing (a type of waterproof plug).

The rubber stopper 13 is a rubber molded product having an appropriate elasticity adapted to the inner diameter of the cavity 12. In this embodiment, the rubber stopper 13 has three peaks in order to ensure waterproofness of the cavity 12. By stopping the water between the entire circumference of each top 13a and the mounting portion 12a of the cavity 12, the cavity 12 is waterproofed.

The waterproof plug pushing device according to the present embodiment is used to mount the rubber plug 13 for sealing on the main mounting portion 12a of the cavity 12.

FIG. 2 is a perspective view showing a schematic configuration of the waterproof plug pushing device according to the present embodiment. FIG. 3 is a diagram showing a schematic configuration of the waterproof plug pushing device according to the present embodiment. (A) is a longitudinal cross-sectional view of the waterproof plug pushing device, and (B) is a diagram of a loading unit 21 described below as viewed from below.

Referring to these figures, the illustrated waterproof plug push-in device 20 is for mounting the above-mentioned rubber plug 13 (see FIG. 1) to the mounting main part 12a. A loading unit 21 in which the loading unit 13 is loaded and a pressing mechanism 22 for sending out the rubber plug 13 loaded in the loading unit 21 are integrally provided.

The loading section 21 is a metal member having a cylindrical shape as a whole, and has a substantially oval introduction hole 21 at one outer peripheral portion thereof.
a is formed. The introduction hole 21a is for introducing the rubber stopper 13 into the inside of the loading unit 21. As described later, the rubber stopper 13 is introduced from the outside thereof, and
It is set to specifications suitable for filling the inside concentrically with 1. Inside the loading portion 21, an internal space S that is continuous with the introduction hole 21a, and a distal communication hole 21b and a proximal communication hole 21c that are concentrically continuous with the internal space S are formed.

The distal end communication hole 21b is for loading the rubber plug 13 introduced into the internal space S from the introduction hole 21a, and sending out the rubber stopper 13 from the distal end opening. The base end communication hole 21c is for introducing a push rod 23 of the pressurizing mechanism 22, which will be described later, from the internal space S into the front end communication hole 21b so that the loaded rubber plug 13 is sent out. is there. In the illustrated embodiment, the distal end communication hole 21b is set to have a diameter slightly smaller than the internal space S communicating with the introduction hole 21a, thereby holding the loaded rubber plug 13 with a necessary and sufficient resistance. To be able to.

At the leading end of the loading section 21, a mounting main part 12 is provided.
a (see FIG. 1), even when the sleeves of the cavities 12 constituting the cavity a are dense, in order to prevent interference with adjacent sleeves, a pair of chamfered portions 21d and chamfered portions 21d chamfered in parallel to each other. Further, a pair of protrusions 21e protruding toward the distal end side are provided continuously. In the illustrated example, the cavity 12 forming the mounting main part 12a is
Since the rib 12b (see FIG. 6) is formed on the outer periphery of the sleeve, a notch 21f is formed on each projection 21e to avoid interference with the rib 12b.

Next, the pressing mechanism 22 operates the rod case 26 connected to the loading section 21, the push rod 23 slidably disposed inside the rod case 26, and the push rod 23. And an operation unit 25.

The rod case 26 is made of metal or, preferably, a transparent resin product. The base portion of the loading portion 21 is press-fitted into one end of the rod case 26 so that the loading portion 21 is pressed.
And concentrically integrated. Inside the rod case 26, a mounting hole 26a for fitting the loading portion 21 from the distal end side thereof, and a rod insertion hole 26 continuous with the mounting hole 26a.
b and a receiving hole 26c continuous with the rod insertion hole 26b are formed concentrically. Then, the loading portion 21 is press-fitted into the mounting hole 26a to be integrated, the push rod 23 is inserted into the rod insertion hole 26b, and the other end of the push rod 23 (the end opposite to the loading portion 21) is operated. A part 25 is provided, and each element part is assembled to this rod case 26.

The pushing rod 23 is a cylindrical metal bar having substantially the same diameter as the inner diameter of the communication hole 21b on the distal end side of the loading portion 21. As shown in FIGS. The retracted posture completely retracted from the (internal space S), the loading posture for loading the rubber plug 13 into the distal communication hole 21b of the loading unit 21, and the rubber stopper 13 are sent out from the distal communication hole 21b. It can take a sending posture. A guide rod 24 is concentrically connected to the other end of the pushing rod 23.

The guide rod 24 is a cylindrical metal rod having a diameter slightly larger than that of the pushing rod 23.
It is slidably received in the rod insertion hole 26b. An operation unit 25 is concentrically connected to the other end of the guide rod 24. And this guide rod 24
Is formed with a regulating groove 28 whose movement is regulated by a regulating portion 27 embodied by a screw.
Is fitted to the regulating portion 27 so as to be able to advance and retreat.
The guide rod 24 can take the pushing rod 23 in the three positions described above.

The operating section 25 is provided with the guide rod 24
A cylindrical metal member having a larger diameter than that of the rod case 26. One end of the cylindrical metal member slidably enters the accommodation hole 26c of the rod case 26, and the other end protrudes outside the rod case 26. At the other end, a pressing end 25a for the operator to press with his thumb is provided.

A pair of biasing members 30 and 31 disposed on the outer periphery of the guide rod 24 via a spring seat 29 are interposed between the operation portion 25 and the housing hole 26c.

The spring seat 29 is provided on the guide rod 2
4 is a boss-shaped member slidably fitted on the outer periphery of the housing 4 and integrally has a flange portion 29a at the center thereof for sliding contact with the inner peripheral surface of the housing hole 26c.

Each of the biasing members 30 and 31 is embodied by a coil spring, and is disposed between the operating portion 25 and the housing hole 26c via the spring seat 29, thereby forming the regulating groove. The operation unit 25 is urged toward the other end in cooperation with one end of the operation unit 28 to a position where the operation unit 25 is regulated by the regulation unit 27. For this reason, when both the urging members 30 and 31 are in the free state, the pushing rod 23 is displaced to the other end via the operation unit 25, and assumes a retracted posture as shown in the figure.

Here, the urging member 3 according to the illustrated embodiment is shown.
At 0 and 31, the spring coefficient of one (for example, the urging member 30) is set higher than the spring coefficient of the other (for example, the urging member 31). Then, the biasing member 31 having a small spring coefficient
The pushing rod 23 is displaced from the retracted position to the loaded position by the pressing load acting on the operating section 25, and the load compressing both the urging members 30 and 31 is applied to the operating section 2.
By acting on 5, the pushing rod 23 can be displaced to the sending posture. Accordingly, the operator feels two large and small reaction forces at the pressing end portion 25a of the operation portion 25, and loads the rubber plug 13 into the communication hole 21b at the distal end of the loading portion 21 and the communication hole at the distal end of the loading portion 21. 21b
The difference between the two states, that is, when the rubber plug 13 is pushed into the mounting main part 12a from the front, can be recognized by the difference in the reaction force transmitted to the thumb.

Next, the operation of this embodiment will be described with reference to FIGS.

FIG. 4 is a perspective view showing the operation of loading the rubber plug 13 into the waterproof plug pushing device 20 according to the present embodiment, and FIG. 5 is a perspective view showing the waterproof plug pushing device 20 according to the present embodiment.
FIG. 4 is a perspective view showing an operation of attaching a rubber stopper 13 to the waterproof connector 10 from FIG. FIG. 6 is a perspective view showing an operation of positioning the loading section 21 of the waterproof plug pushing device 20 according to the present embodiment at the mounting main part 12a.

Referring to FIG. 4, in the present embodiment, the rubber plug 13 is first inserted into the internal space S of the loading portion 21 by pushing the rubber plug 13 into the introduction portion 21 a and pushing it into the interior of the loading portion 21. Introduce. When the rubber plug 13 is lying down and lying down, the introduction hole 21a faces the rubber plug 13 with the posture as it is, and is scooped into the loading portion 21 so that the inside of the loading portion 21 is removed. The rubber stopper 13 is introduced into the space S.

Next, by grasping the rod case 26 and lightly pushing the operating portion 25 with the thumb, the pushing rod 23 in the retracted position is displaced to the loaded position, and the rubber plug 13 introduced into the internal space S is moved to the distal end. It is loaded in the side communication hole 21b. At this time, if the operator attempts to push the operation unit 25 until the stroke that shifts from the loading posture to the sending posture,
Since the reaction force of the both urging members 30 and 31 changes at the switching portion, the operator does not make an error that the operation section 25 is pushed excessively and the waterproof plug 13 to be loaded is sent out.

Next, referring to FIG. 5, in order to attach the rubber plug 13 (FIG. 1) from the waterproof plug pushing device 20 to the waterproof connector 10, the protrusion 21e of the loading portion 21 is attached to the essential portion of the rubber plug 13. As shown in FIG. 6, a rib 12b of the main mounting portion 12a is inserted into a notch 21f at the tip of the loading portion 21 as shown in FIG.
To determine the position of the loading unit 21.

In this state, when the operating section 25 is pushed in, the pushing rod 23 is displaced from the retracted attitude to the delivery attitude via the loading attitude, and the rubber plug 13 loaded in the distal end side communication hole 21b is positioned. It is mounted in the mounted mounting main part 12a.

As described above, in the present embodiment, the loading section 21
The pressing mechanism 22 holds the rubber stopper 13 in a state in which the distal end side of the loading portion 21 faces the mounting portion 12a of the rubber stopper 13 in advance.
By actuating, the held rubber plug 13 can be pushed out from the internal space S of the loading portion 21 to the distal end side communication hole 21b, and can be easily mounted on the mounting main portion 12a.

Further, in this embodiment, since the introduction hole 21a for introducing the rubber plug 13 is provided on the side of the loading portion 21 formed in a cylindrical shape, the rubber plug 13 rolls sideways. Even if it is in the state, it is possible to load the rubber plug 13 into the loading portion 21 simply by making the introduction hole 21a face the rubber plug 13 in the same posture and simply pushing it into the inside or scooping it. Become. As a result, not only the mounting of the rubber plug 13 to the mounting main part 12a, but also the loading part 2
1 is also very easy, and workability is improved.

The above embodiment is merely an example of a preferred specific example of the present invention, and the present invention is not limited to the above embodiment.

For example, in this embodiment, the “waterproof plug”
Are mainly rubber stoppers, but need not necessarily be made of rubber material. A molded product of another resin may be used as long as it has an appropriate elasticity according to the inner diameter of the cavity 12. The rubber plug 13 does not necessarily have to have three peaks, and various designs such as a cylindrical one can be made.

The "waterproof plug mounting essential part" may be a cavity of a general connector other than the waterproof connector, and may be provided on a mounting tool for mounting the waterproof plug in a plurality of cavities simultaneously. It may be a waterproof plug holder.

The loading section 21 does not necessarily need to be a metal member, and a resin molded product can be used as long as it has sufficient strength.

The pressurizing mechanism 22 does not necessarily have to have the above-described configuration. The pressurizing mechanism 22 is integrally connected to the loading section 21 and connects the rubber plug 13 held by the loading section 21 to the loading section 21. Various designs are possible as long as it is configured to be pushed out from the internal space S to the distal end side communication hole 21b.

It goes without saying that various design changes are possible within the scope of the claims of the present invention.

[0050]

As described above, according to the present invention, not only the operation of mounting the waterproof plug but also the operation of loading the waterproof plug is improved, so that the productivity is remarkably improved. It works.

[Brief description of the drawings]

FIG. 1 is a perspective view illustrating a schematic configuration of a waterproof connector according to an embodiment.

FIG. 2 is a perspective view illustrating a schematic configuration of a waterproof plug pushing device according to the present embodiment.

FIG. 3 is a diagram illustrating a schematic configuration of a waterproof plug pushing device according to the present embodiment. (A) is a longitudinal sectional view of the waterproof plug push-in device, and (B) is a diagram in which a loading section described later is viewed from below.

FIG. 4 is a perspective view showing an operation of loading a waterproof plug into the waterproof plug pushing device according to the embodiment.

FIG. 5 is a perspective view showing an operation of attaching a waterproof plug to the waterproof connector from the waterproof plug pushing device according to the embodiment.

FIG. 6 is a perspective view showing an operation of positioning a loading section of the waterproof plug push-in device according to the present embodiment to a main mounting section.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 10 Waterproof connector 12 Cavity 12a Attachment important part 12b Rib (undulation) 13 Rubber plug (a kind of waterproof plug) 20 Waterproof plug push-in device 21 Loading part 21a Introducing hole 21b Base end side communication hole 21c Front end side communication hole 21d Beveling part 22 Addition Pressure mechanism

Claims (3)

[Claims] 1. A waterproof plug push-in device for mounting a waterproof plug for sealing a cavity of a connector to a mounting main part, comprising: a loading portion formed in a cylindrical shape for loading a waterproof plug therein. And a pressurizing mechanism that is connected to the loading unit and pushes out the waterproof plug held by the loading unit from the base end side to the distal end side of the loading unit. A waterproof plug push-in device, wherein an introduction hole for introducing a waterproof plug into the inside is formed. 2. The waterproof plug push-in device according to claim 1, wherein the loading section has a pair of parallel chamfers formed on the outer surface of the distal end thereof. 3. The waterproof plug push-in device according to claim 1, wherein a tip of the loading portion has a positioning projection corresponding to the undulation of the mounting portion.