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US 5,964,393 AGranted
Rivet feed apparatus
AssigneeMichael Feldpausch
InventorsMichael Feldpausch, Stuart Edmund Blacket
Life of this patent
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AssigneeMichael Feldpausch
InventorsMichael Feldpausch, Stuart Edmund Blacket
Estimating the term…
An apparatus for setting up fastener elements having a shaft and a head, e.g. rivets or the like, wherein the shaft length is equal to or less than the head diameter, the setting-up being ahead of a press-bar or hammer of a fastener-driving machine, which press-bar or hammer is adjusted to the head of the fastener elements. The apparatus includes a transfer mechanism which transports fastener elements in succession, by means of a flow of a medium, into an intermediate position in the vicinity of the press-bar or hammer. A radially elastic holding device is disposed in the fastener-driving machine, which holding device is movable with the press-bar or hammer and is capable of holding the head in an axial orientation with respect to the press-bar or hammer at a location ahead of the press-bar or hammer, i.e. downstream in the flow of driving force exerted by the press-bar or hammer. The transfer mechanism transfers a transported fastener element to and into the holding device.
An apparatus for setting up fastener elements having a shaft and a head, wherein the shaft has a length equal to or less than a diameter of the head, said setting up being in front of a press-bar or hammer of a fastener-driving machine which press-bar or hammer is engageable with the head of the fastener elements, the apparatus comprising a transfer mechanism for transporting fastener elements in succession by a flow of a medium, into an intermediate position in the vicinity of said press-bar or hammer, wherein a radially elastic holding device is disposed in the fastener-driving machine, which holding device is movable with the press-bar or hammer and grips the fastener element adjacent the head and holds the head in an axial orientation with respect to said press-bar or hammer at a location in front of said press-bar or hammer, said transfer mechanism provided with transfer means for transferring a transported fastener element to said holding device.
A device for feeding fastener elements having a shaft and a head, wherein a length of the shaft is equal to or less than a diameter of the head, to a tappet adapted to the head of a riveting machine, said device including a transfer mechanism which uses a fluid stream to feed one fastener element at a time into an intermediate position, the device comprising a radially elastic holding unit, capable of moving with the tappet, provided in the riveting machine the holding unit gripping the fastener element adjacent the head and holding the head in axial alignment directly against the tappet, and said transfer mechanism is provided with means for allowing a fed fastener element to enter the holding unit wherein one fastener element at a time is held in an intermediate position in front of the tappet and thereafter is transferred to the holding unit.
Dependencies are inferred from the claim text.