Button fastener and button fastener manufacturing method
A manufacturing method and technology for fixing parts, applied in the direction of fasteners, buttons, buttons, etc., can solve the problems of easy falling off, insufficient pressing of the shell cover, difficult coaxiality of the column part and the base part, etc., and achieve the effect of preventing deviation or falling off.
Active Publication Date: 2017-09-26
YKK CORP
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- Application Information
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Problems solved by technology
In this case, it is also difficult for the post and the base to be coaxial, which hinders the work of using the button fastener to fasten the button to the cloth of the clothes, etc., and the work of assembling the case cover to the button fastener.
In addition, even if the cover can be attached to the base of the button holder, there is a problem that the cover is not pressed enough to the base, and then the cover is shifted or easy to fall off.
Method used
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[0051] Hereinafter, several embodiments of the present invention will be described with reference to the drawings, but the present invention is not limited to these embodiments, and those skilled in the art understand that appropriate changes and the like can be made within the scope of claims and equivalents.
[0052] figure 1 It is a side view which shows the button fastener 10 which concerns on one Embodiment of this invention. figure 2 is a plan view of the button fastener 10 . image 3 yes figure 1 A-A sectional view of, Figure 4 yes figure 1 The B-B section view. The button fastener 10 is made of such metal plates as copper, brass, aluminum, stainless steel, iron (refer to Figure 6 ) Parts formed as described later. The button fastener 10 is provided with: a plate-shaped base portion 20; figure 1 direction on paper. )extend. The base portion 20 expands in a radial direction perpendicular to the vertical direction in which the column portion 30 extends. I...
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Provided is a manufacturing method for a metal button fastener, the method enabling successful press processing of a base-end part of an intermediate member into a base part having an outer circumferential shape non-similar to that of the base-end part. A button fastener (10) is provided with a shank part (30), and a plate-shaped base part (20) which expands in the radial direction in the base-end side of the shank part (30). This method includes a step A in which a base-end part (41) of a columnar intermediate member (40), which becomes the button fastener (10), is made into the base part (20) by using a die to press process the base-end part and widen the same in the radial direction. The outer circumferential shape of the base-end part (41) and the outer circumferential shape of the base part (20) are non-similar. The die is provided with a holding die (50) for holding the intermediate member (40) so that the base-end part (41) is exposed, and a press die (60) for pressing the base-end part (41) against the holding die (50). The holding die (50) includes a molding surface (55b) for molding the upper surface (21) of the base part (20). The molding surface (55b) includes a plurality of recesses (56) or a plurality of protrusions (94). In the step A, the displacement of the material of the base-end part (41) in the radial direction is controlled by the recesses (56) or the plurality of protrusions (94).
Description
technical field [0001] The present invention relates to a button fastener and a method for manufacturing the button fastener. More specifically, the button fastener according to the present invention is, for example, made of metal, and the metal button fastener has a plate-shaped base and a column extending from the base. The circular outer peripheral shape of the base part is formed by pressing from the rectangular outer peripheral shape of the corresponding part of the intermediate member. The manufacturing method of the button fastener which concerns on this invention is the manufacturing method of such a metal button fastener. Background technique [0002] As a metal button fastener having a plate-shaped base and a column extending from the base, it is known that the button fastener cuts out a triangular-shaped intermediate member from a metal plate, and molds the triangular bottom side portion of the intermediate member. (Base end portion) Pressing is performed to form...
Claims
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Login to View More IPC IPC(8): A44B1/00A44B1/02A44B1/42B21D53/48
CPCA44B1/00A44B1/02A44B1/42B21D53/48
Inventor 伊藤修久山道大
Owner YKK CORP