JPS6020291Y2 - probe device - Google Patents

Description

[Detailed description of the invention] The present invention relates to a probe device, and it facilitates the operation of attaching and detaching the earth lead snap-on detachable attachment to the probe, and also allows for appropriate attachment and detachment of the snap-on detachable attachment or snap-on detachable attachment. This is intended to prevent damage to the equipment cover.

The conventional method of attaching a ground lead to a probe and its drawbacks will be explained below with reference to FIGS. 1 and 3.

At one end of the earth lead L, solder 6 a snap-release attachment 5 having an arm 4 with a slot 3 extending to the notch 1 protruding from the rear surface of the annular portion 2 which has a notch 1 for attachment and detachment on the front surface. death,
This fixture 5 is fitted into a predetermined position of the probe P to provide grounding.

On the probe P side, a cylindrical cover 9 having a housing part 7 for the removable attachment 5 and a cutout part 8 with a lateral opening communicating with the housing part is loosely mounted.

The lead L is attached by passing the removable fitting 5 over the center line of the notch 8 of the cover 9 and press-fitting it into the attachment part P' of the probe P using the notch 1 of the removable fitting 5. All you have to do is pinch the arm 4 of the removable bullet attachment 5 and pull it laterally.

At the engagement position, the lead L can be freely rotated around the axis of the probe P and pulled out in a desired direction.

However, the removable bullet attachment 5 and the cover 9 are also relatively rotatable, and the width W of the arm 4 of the removable bullet attachment 5 is smaller than the outer diameter of the removable attachment 5. Since it is quite small, the relative rotation angle θ□ between the two becomes large.

Therefore, during use of the probe, the snap-release attachment 5 and the cover 9 are often misaligned to a position where they cannot be removed from each other. It often hit the rim 8' and could not be removed, and if pulled forcibly, the rim 8' would break off.

That is, when engaging, there is no problem because the aim is set in advance, but when pulling out, positioning was extremely troublesome.

In order to eliminate such drawbacks, the present invention minimizes the relative rotation angle between the projectile detachable attachment and the cylindrical cover as much as possible.A specific example of this is detailed below with reference to Figures 2 and 4. It is.

At one end of the earth lead L, there is a snap-release attachment 15, which has an arm 14 with a slot 13 extending to the attachment/detachment notch 11 from the rear surface of the annular portion 12 having the attachment/detachment notch 11 on the front surface. Solder 16 and attach this removable mounting bracket 15.
is fitted into a predetermined position P' of the probe P for grounding.

Then, on the probe P side, a housing part 17 for the annular part 12 of the projectile removable attachment 15 is provided at one end.
A cylindrical cover 19 is loosely attached to the side surface of the cover 19 and has a cutout 18 with a lateral opening for attaching and detaching the annular portion 12 of the snap-release attachment 15.

The width of the notch 18 is set to a width that allows the annular portion 12 of the snap-release attachment 15 to expand in diameter in order to fit into the probe P.

One of the restricting parts 20 protruding outward is provided on the rear outside of the annular part 12 of the snap-release attachment 15 near the maximum outer diameter in the direction perpendicular to the attachment/detachment direction.

Further, both edges in the width direction of the notch 18 of the cylindrical cover 19 are engaged with one of the regulating parts 20 to form the other regulating part 21 that limits the relative rotation angle.

The present invention is not limited to the illustrated example, and both regulating portions 20 and 21 may each have separate projections.

The attachment and detachment of the lead L is almost the same as in the case of FIG. 1, so the explanation will be omitted.

In the engaged state, when the snap-release attachment 15 rotates, one of the regulating parts 2'0 immediately comes into contact with the other regulating part 21 of the cylindrical cover 19, so the relative rotation angle θ2 is small. Become.

Therefore, the excess angle from the attachment/detachment position of the bullet-receiving detachable fitting 15 to the cylindrical cover 19 becomes extremely small, so that the attachment/detachment operation becomes even more accurate.

The maximum outer diameter portion D1 of the removable bullet attachment 15 is chamfered at the chamfered portion 2.
If the outer diameter portion is reduced in diameter by 2, the divided allowable attachment/detachment angle range can be widened, and the attachment/detachment operation becomes easier and more reliable.

According to the present invention, one restricting portion protruding outward is provided near the maximum outer diameter in the direction perpendicular to the attachment/detachment direction on the rear outside of the annular portion of the snap-release attaching/detachable attachment, so that it can be loosely attached to the probe. At one end of the cylindrical cover, a housing part for the annular part of the snap-on detachable attachment is provided, and the width of the notch on the side of the cylindrical cover is set so that the annular part of the snap-on detachable attachment fits into the probe. It is set to an extent that allows expansion, and both edges in the width direction are used as the other regulating part, and the relative rotation angle between the two is regulated by engagement with one regulating part of the snap-release attachment. Therefore, the relative rotation angle between the snap-release attachment and the cylindrical cover can be reduced, and the displacement of the attachment/detachment position is suppressed, making attachment/detachment easy and accurate, without straining the cylindrical cover, There are various effects such as there is no risk of damaging the bullet-propelling detachable attachment.

[Brief explanation of the drawing]

FIG. 1 is a perspective view of a conventional probe device, FIG. 2 is a perspective view showing a specific example of the probe device according to the present invention, and FIG. The explanatory diagram, FIG. 4, is an explanatory diagram of the rotation range of the removable attachment of the probe device of the present invention. 11... Attachment/detachment notch, 12... Annular part, 15... Bullet release detachable attachment, P...
...Probe, 17...Accommodation section, 18...
...Notch, 19...Cylindrical cover, Do...
... Maximum outer diameter part, 20 ... One regulating part, 2
1...Other regulating section, L...Lead,
22... Chamfered portion.

Claims (2)

[Scope of utility model registration request] (1) The circular ring of a snap-release detachable attachment consisting of an annular part with an attachment/detachment notch on the front surface, and arms for connecting four ground leads with slots extending from the rear surface of the annular part to the attachment/detachment notch. One regulating part is provided on the rear outside of the annular part and protrudes outward near the maximum outer diameter in the direction perpendicular to the attachment/detachment direction, and one end of the cylindrical cover to be loosely attached to the probe is provided with the elastic attachment/detachment part. A housing part is provided for the annular part of the snap-type attachment, and a cutout part is provided on the side surface of the housing part for attaching and detaching the annular part of the snap-release attachment.
The width of this notch is set to an extent that allows the annular part of the snap-on removable attachment to expand in diameter in order to fit into the probe, and both ends of the notch in the width direction are used as the other restricting part. A probe device configured to regulate a rotation angle relative to the snap-release detachable fixture by engagement with the one regulating portion of the snap-release detachable fixture. (2) Scope of Utility Model Registration Claim No. (1) in which the stated maximum outer diameter of the stated projectile removable attachment is reduced in diameter by the chamfered portion.
Probe device as described in section.