Buckles – buttons – clasps – etc. – Button with fastener – Covers
Patent
1999-05-19
2000-04-11
Brittain, James R.
Buckles, buttons, clasps, etc.
Button with fastener
Covers
24691, 24 94, A44B 144
Patent
active
060474491
DESCRIPTION:
BRIEF SUMMARY
FIELD OF THE INVENTION
The present invention general relates to capped rivets to be used with attaching elements,especially for fastening a snap button.
BACKGROUND OF THE INVENTION
One capped rivet according to the present invention comprises a cap having an exposed upper surface and a lower surface, and a rivet having a rivet shaft extending in a direction away from the lower surface of the cap, a rivet flange extending in a horizontal direction away from an axis of the rivet shaft for fixedly attaching the rivet to the cap, and a pair of support portions disposed between the rivet shaft and the cap, extending substantially parallel to the lower surface of the cap, and formed by making a pair of apertures in the rivet flange and bending two portions of the rivet flange along bending lines respectively extending between the apertures and the rivet shaft.
A capped rivet of this type is used, for example, for attaching a snap button, an ornamental or the like to a woven material to be supported such as a garment or a bag. For attachment, a rivet shaft is pierced through the supporting material and then deformed so as to attach the capped rivet fixedly to the supporting material. For protection of the supporting material and fastening of a snap button, firstly an eyelet or a spherical counterpart is brought up on the rivet shaft which has been pierced through the supporting material and then can be pressed against the supporting material by deformation of the rivet shaft. The deformation of the rivet shaft is generally done by using an attaching machine equipped with an attaching implement which contacts an exposed upper surface of the cap and pierces the rivet shaft through the supporting material and press it against a member holding a counterpart.
An existing capped rivet of the above-mentioned type is shown in FIG. 4. A rivet 110 of this capped rivet has, in addition to a rivet shaft 112 and a rivet flange 114, two support portions 120 disposed between the rivet shaft 112 and a cap 100 and extending substantially parallel to a lower surface of the cap. These support portions 120 are formed by means of making two apertures 118 at the two respective portions of the rivet flange and bending the two portions of the rivet flange along bending lines respectively extending between the apertures 118 and the rivet shaft 112. In order to avoid a problem of marking an impression on an upper surface of the cap 100 by the attaching implement, the support portions 120 has support surfaces for preventing the cap 100 from escaping toward the rivet shaft 112 by action of the attaching implement. Further, in the case of the capped rivet shown in FIG. 4, in order to prevent the supporting material from possible puckering when it is attached, the vertical interval X of a pressure-contact section 116 on a lower surface of the rivet flange 114 and a lower surface of an inwardly curved edge 106 of the cap 100 is reduced. The capped rivet of this type is known by EP-A2-0 146 133.
However, in use of the capped rivet of the type shown in FIG. 4, if the cap is made using thinner material for reduction of the material cost, an impression would be marked on the upper surface of the cap by the attaching implement.
In view of the foregoing problems, a main object of this invention is to provide a capped rivet which can be prevented from an impression of an attaching implement on an exposed upper surface of the cap when it is attached to a material to be supported, even when the cap is made from thin material.
In order to achieve the above object, it is proposed that in the capped rivet of the above-mentioned type, the support portions should be bent in such a manner that one support portion covers the other, wherein a surface of one support portion that faces away from an inner surface of the cap at least partly contacts a surface of the other support portion that faces toward the inner face of the cap.
With such an arrangement of the support portions, the other support portion that contacts the surface of the one support portion t
REFERENCES:
patent: 3333306 (1967-08-01), Daddona, Jr. et al.
patent: 5745964 (1998-05-01), Luer et al.
Brittain James R.
YKK Corporation
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