JPS588455Y2 - Eyelet mounting jig - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to an eyelet attachment jig for attaching snap-type eyelets made of plastic to fabrics such as hats.

Eyelets used in hats and the like are known to be made of metal or plastic, but both have a structure in which the eyelet is passed through fabric and the tip of the eyelet is curled on the seat plate.

Installing such curling type eyelets requires strong pressure, so a large installation device such as a hand press machine with a lever must be used, and a large amount of force is also required to operate the lever. Ta.

The present applicant has already proposed a snap-type eyelet that can be attached by simply fitting the eyelet by utilizing the elasticity of plastic.

The present invention provides a small and simple eyelet attachment jig for attaching such snap-type eyelets.

Embodiments of the present invention will be described below with reference to the drawings.

In Fig. 1, 1 is a cylindrical main body, with a small diameter portion 1a at the tip.
, and a lid body 2 having the same diameter as the main body 1 has a threaded portion 3 at the rear end.
is screwed through.

Inside the main body 1, there is a guide hole 5 with a step 4 at the tip.
is formed.

A guide pin 6 is slidably inserted into this guide hole 4.

Circumferential grooves 7 and 8 are formed in the guide pin 6 at two upper and lower positions, and O-rings 9 and 10 are fitted into the circumferential grooves 7 and 8, respectively.

The guide pin 6 is biased downward by the spring 11 inserted between the guide pin 6 and the lid 2, and the O-ring 10
and the stepped portion 4 are engaged to restrict the lowering.

A protrusion 12 is formed at the tip of the guide pin 6 to hold an eyelet, which will be described later.

FIGS. 2 and 3 show an example of a snap-type eyelet that is attached using the above-mentioned attachment jig.

Reference numeral 13 denotes an eyelet made of hard plastic such as nylon, which consists of a cylindrical portion 14 and a flange portion 15 formed at the upper end of the cylindrical portion 14.

A locking curved edge 16 is formed at the upper end edge of the cylindrical portion 14 over the entire circumference.

The lower surface of the locking curved edge 16 is a tapered surface 17 that widens upward.

A locking groove 18 is formed in the lower part of the locking curved edge 16 and extends around the entire outer circumference of the cylindrical portion 14 .

Reference numeral 19 is a circular seat plate made of hard plastic similar to the eyelet 13 and has a rib 20 on the peripheral edge.
A plurality of locking tongue pieces 22 divided into a plurality of pieces are integrally formed on the inner circumferential portion of the locking tongue 22 with a notch 21 interposed therebetween.

The inner peripheral edge 22a of the locking tongue piece 22 is on the same circumference,
The inner diameter r of the inner circumferential edge 22 a is slightly smaller than the outer diameter of the locking curved edge 16 of the eyelet, and the inner circumferential edge 22 a
is formed to a size that matches the tapered surface 17.

A hole 23 may be formed in the locking tongue piece 22 to impart elasticity.

The rib 20 is formed with protrusions 24 projecting upward and downward at appropriate locations, for example, in the illustrated example, corresponding to the positions of the notches 21.

To attach the eyelet to a fabric such as a hat, as shown in FIG.
Insert it by hand.

The outer diameter of the guide pin 6 is slightly larger than the inner diameter r of the seat plate 19, and the seat plate 19 is held on the guide pin 6 by frictional force.

Next, insert the protrusion 12 of the guide pin 6 into the hole of the eyelet 13.
If the main body 1 is lowered against the spring 3 after inserting the
, the tongue piece 22 of the seat plate 19 is pressed upward by the tapered surface 17 of the eyelet due to its elastic action and enters the locking groove 18 by a snap action, and as shown in FIG. and the back surface of the fabric 25, and the attachment is completed.

When the seat plate 19 enters the eyelet 13, the tongue piece 22 of the seat plate 19 is pushed by the tapered surface 17 and expands into a V-shape.

In order to allow this movement of the expanding tongue piece 22, the main body 1
A recess 28 is provided in the distal end surface 1a'.

At this time, the eyelet 13 is also pushed by the seat plate 19, causing the cylindrical portion 14 to contract inward.

In order to allow this contraction movement of the cylindrical portion 14, a tapered recess 29 is provided on the outer periphery of the protrusion 12.

By supporting the guide pin 6 with elastic bodies such as O-rings 9 and 10, there are the following advantages.

If the guide pin 6 is tightly fitted to the main body 1, eccentricity or inclination will not occur between the two, so the main body 1 can be lowered and the seat plate 1
When fitting 9 into the eyelet 13, the entire circumference of the seat plate is uniformly pressed by the main body 1.

When the seat plate 19 is pressed uniformly, all the tongue pieces 22 are deformed at once, so a large force is required.

However, if the guide pin 6 is supported by the main body 1 with an elastic body, the relative relationship between the guide pin 6 and the main body 1 when the seat plate is fitted will be eccentric and inclined in the direction of least fitting resistance, and the first By fitting from there and fitting one after another, it can be installed with little force.

However, it is also possible to implement the method by closely fitting without using an elastic body.

As described above, the present invention has the advantage that it has a simpler structure, takes up less space, can be manufactured at a lower cost, and is easier to operate than conventional hand press machines.

[Brief explanation of the drawing]

Fig. 1 is a partially cutaway side view showing an embodiment of the mounting jig of the present invention, and Figs. 2 and 3 show examples of snap-type eyelets that are mounted by the mounting jig of the present invention. ,
FIG. 2 is a plan view of the eyelet, FIG. 3 is a plan view of the seat plate, FIG. 4 is a vertical side view showing the eyelet installation operation, and FIG. 5 is a vertical side view showing the eyelet installation completed state. 1...Main body, 2...Guide pin, 3.
...Spring, 12...Protrusion, 13...
...eyelet, 19...seat board.

Claims (1)

[Scope of utility model registration request] A guide pin is slidably fitted into a cylindrical main body with an open end, with a portion exposed at the distal end of the main body, and the guide pin is biased toward the distal end of the main body by a spring, and the guide pin is A protrusion is formed on the tip surface, the protrusion is fitted into the hole of the eyelet, a seat plate is held on the outer periphery of the tip of the guide pin, and the seat plate is pressed into the eyelet by movement of the main body. An eyelet mounting jig featuring: