JPS598300Y2 - Connector dust cover - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to a dustproof cover for a connector that does not easily fall off due to vibrations, shocks, etc. and is easy to remove.

In electrical equipment such as electronic equipment, when changing circuit connections or making connections to other devices using connectors, one of the many connectors used, such as a female connector, is centrally placed in one location on the equipment. Efforts are often made to facilitate connections.

However, in this case, depending on the required circuit structure, there may be some connectors that are not used, and there are also connectors that are not currently used but are installed in anticipation of future use.

Therefore, by covering the female connector, which is not generally used, with a cover, it is possible to prevent dust from entering the interior and prevent deterioration of the contact, and at the same time, it is possible to insert a male connector connected to a cable from another device. This is done to prevent accidents such as erroneous connections.

For example, as shown in the perspective view and cross-sectional perspective view shown in Figures 1a and 1), the connector is formed into a rectangular shape using an elastic material such as resin so that the width b becomes smaller than the width a of the connector toward the center. A method of making a cover 1 and fitting it from the mating connector insertion port side of the connector 2 by pushing the center part apart, or a method of making a cover 1 of the shape of a rectangle as shown in the perspective view and cross-sectional perspective view shown in Fig. 2 a, l) A method is adopted in which a protruding piece 3 provided in the longitudinal direction of the cover 1 is fitted between the opposing contacts 4 of the female connector 2, and the contact pressure of the contacts 4 is used to cover the female connector.

However, these methods utilize the frictional force between the cover and the connector or the contact spring pressure of the contacts, and have the disadvantage that they do not have sufficient holding force and are susceptible to falling off due to vibrations or impact forces.

Therefore, in order to improve this problem, as shown in the perspective view shown in FIG. 6, and left and right locking legs 7 and 8 with locking keys 7a and 8a at their tips, which are fitted into the connector 2 shown in the perspective view of Fig. 3b, and the locking legs By using the elasticity of the locking keys 7 and 8, the locking keys 7a and 8a are respectively dropped into the support grooves 2b and 2C provided on both the left and right sides of the connector 2 as shown in the cross-sectional view shown in FIG. 3C. Many methods of locking and securely holding the device have been adopted.

Note that 2d and 2e are guide grooves for the locking key portions 7a and 8a.

According to this method, when the length l of the locking legs 7a, 8a is constant as shown in FIG. 3a, the holding force is
The smaller the angle θ of the top surface of the key portions 7a, ga with respect to the angle θ is, the larger the angle becomes, and the larger the length l is, assuming the angle θ is constant, the larger the angle becomes.

Furthermore, by considering θ and l at the same time, it is possible to obtain a necessary and sufficient holding force, to reliably prevent falling off due to vibrations, etc., and to exhibit a sufficient dustproof effect.

On the other hand, however, this method has a major drawback in that the greater the holding force, the less easily and quickly the cover can be removed.

That is, in this structure, when removing, a special removal tool with a fingertip or a key-shaped tip is hung on the tips of the locking legs 7, 8, and the key parts 7a, 8a are inserted into the support grooves 2b, 2C. It is necessary to remove each from the

However, with the fingertip method, as the locking legs 7a and 8a become smaller due to the miniaturization of the connector, not only does the removal operation become very troublesome and time-consuming, but also the arrangement is concentrated due to the demand for miniaturization of the device. If the distance between the connectors becomes small, it will be impossible to insert your fingertips into the connectors, resulting in a situation where you will not be able to remove the sushi.

In addition, the method using a tool has the disadvantage that it is cumbersome to operate because the tool must be kept on hand at all times so as not to be lost.

This invention allows the removal of a dustproof cover with locking legs as described above to be performed easily and quickly with the fingertips, regardless of the distance between the connectors.Next, the details will be explained using drawings. do.

4 and 5 are perspective views showing one embodiment of the dustproof cover of the present invention, and perspective views showing how to remove it from the connector (the same reference numerals as in FIG. 3 indicate the same parts).

), and its characteristics are as follows.

As shown in Fig. 4, a flat plate part 6, which is a dustproof cover with locking legs 7 and 8 on both left and right sides, is made of, for example, synthetic resin so that it can be easily bent. The locking legs 7, are spaced apart so that their positions are approximately equal.
The device is characterized in that it is provided with two prismatic finger rests 9 and 10 that protrude in the opposite direction to 8.

When removing the cover using the above structure, as shown in FIG. The support groove 2b of the connector is bent upwardly as shown by the dotted line in the figure.
, 2C to unlock the locking keys 7a, 8a.

That is, as the flat plate part 6 curves, the tips of the left and right locking legs 7, 8 also open outward, and the locking keys 7a, 8a are aligned with the support grooves 2b.
, 2C will escape to the outside, so if you pull it toward you in this state, you can remove the cover.

As described above, the finger hanging posts 9 and 1 protrude above the flat plate part 6.
It can be removed by operation 0, and like a conventional cover, insert your finger between the connectors and grope to remove the locking legs 7 and 8.
There is no need for any operation such as removing the lock to release the lock.

Therefore, no matter how small the interval between the connectors is, it will not become impossible to remove the connectors, and of course, no special tools are required for removing the connectors.

Therefore, the removal operation is much easier and faster than in the past.

The above-mentioned finger hanging posts 9 and 10 have been explained with reference to one embodiment of the present invention.
The degree of curvature of the flat plate part 6 due to the gripping of the finger rests 9,
The distance is maximum when 10 is located at the leftmost and leftmost ends of the flat plate portion 6 and the distance is the largest, and becomes smaller as the distance between the two becomes smaller as the distance between the two moves toward the center.

Further, the force required to bend the flat plate portion 6 becomes smaller as the length of the finger rests 9, 10 becomes longer.

Therefore, it is preferable to select the interval, length, etc. of the finger rests 9, 10 depending on the strength of the holding force determined by the length l of the locking keys 7a, 8a, etc.

Furthermore, in the above case, if the thickness i of the finger-holding posts 9 and 10 shown in FIG. .

Moreover, since the same problem can occur even if the length is increased, it is necessary to appropriately select the thickness so that this kind of problem is unlikely to occur.

Further, although explanation has been omitted in the above embodiments, when the finger rests 9 and 10 are gripped together, they are tilted toward the other person.
Fingers tend to slip and come off easily.

Therefore, in order to prevent this, as shown in FIG.
Finger hooks 9a, 10 protrude outward on the head of 10.
a, or an uneven portion 9 as shown in the perspective view of FIG. 6a.
b, 10b is preferably provided.

Furthermore, although the example in which two finger-resting posts 9 and 10 are provided has been shown above, one finger-resting post 9 is provided offset to one side of the flat plate portion 6 as shown in the perspective view shown in FIG. 6b. For example, with eight fingers placed on the flat plate part 6, a force F is applied to the finger holding post 9 with the thumb, and one of the locks is released and removed as shown by the dotted line in the figure. You can also.

Further, in the above description, the finger-resting post is prismatic, but it may also be round, polygonal, or the like.

Moreover, although the dustproof cover for the female connector has been described above, the present invention can be similarly applied to the cover for the male connector.

As is clear from the above explanation, according to the present invention, it is possible to easily and quickly remove the dustproof cover, which is held using the support groove on the connector side and the locking key part.
The practical effects are significant.

[Brief explanation of the drawing]

Fig. 1 a, b and Fig. 2 a, l) are cross-sectional perspective views showing an example of a conventional dustproof cover and its mounting situation, respectively.
Figures a, l), and c are perspective views of a dustproof cover and connector showing other conventional examples, and sectional views showing how they are attached to the connector. Figures 4 and 5 are perspective views of an embodiment of the dustproof cover of the present invention. 6A and 6L are perspective views showing a modification of the present invention. 1...Dust-proof cover, 2...Connector,
2a...Mating connector insertion port surface, 2b, 2C...
...Support groove, 6...Flat plate part, 7, 8...
... Locking leg, 7a, 8a ... Locking key part, 9
, 10... Finger post, 9a, 10a...
Finger head.

Claims (1)

[Scope of utility model registration request] In a dustproof cover for a connector, locking legs are provided on both left and right sides of a flat plate for closing on the mating connector insertion port surface, and the locking keys are locked by support grooves provided on both left and right sides of the connector. , the closing flat plate part is made of a material that is particularly easy to bend, and a finger holding post for removing the cover is provided that projects in the opposite direction to the locking leg so as to be deviated from the center thereof;
As a result, the dustproof cover of the connector can be removed by bending the flat plate part to unlock the locking key part.