Method and apparatus for making a rising hinge |
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| 申请号 | US3593557D | 申请日 | 1969-02-05 | 公开(公告)号 | US3593557A | 公开(公告)日 | 1971-07-20 |
| 申请人 | WINKHAUS FA AUGUST; | 发明人 | UEKOTTER ANTON; GREISNER PAUL; | ||||
| 摘要 | The tubular barrels of a rising hinge having a loose pin are shaped in a tubular die in which an obliquely inclined annular face of an internal shoulder divides the die bore into two portions of different uniform cross section, by inserting a metal blank into the wider bore portion and partly extruding the metal through the orifice in the annular face into the second, narrower bore portion. The wider portion of the intermediate metal body so obtained which duplicates the shape of the annular face, is drilled out to a cross section greater than that of the narrower bore portion so that the narrower metal portion is severed from the now-tubular wider portion of the metallic body. | ||||||
| 权利要求 | 1. A shaping arrangement comprising a. a die body formed with an elongated, substantially straight bore having an open longitudinal end and a plurality of longitudinal portions differing in cross section, 1. a first one of said portions extending inward from said open end, 2. said body having a shoulder in said bore separating said first portion from a second longitudinal portion of said bore smaller in cross section than said first portion, 3. said shoulder having an annular face directed toward said open end and defining an orifice of said second portion, 4. a circumferential part of said annular face being obliquely inclined relative to the direction of elongation of said bore, 5. said annular face having three additionaL circumferential parts, 6. two of said additional parts extending from said obliquely inclined part in respective planes offset in said direction and substantially perpendicular to said direction, and 7. the third additional part connecting said two parts and extending between said planes obliquely relative to said direction; and b. extruding means for extruding a plastically deformable material from said first portion of said bore through said orifice into said second portion, said extruding means including 1. a plunger member dimensioned for movement in said first portion in conforming engagement with said die body, and 2. press means for forcing said plunger member inward of said bore against the resistance of said material. 2. said body having a shoulder in said bore separating said first portion from a second longitudinal portion of said bore smaller in cross section than said first portion, 2. An arrangement as set forth in claim 1, further comprising an ejector tool, the other longitudinal end of said bore being open and communicating with said second portion, said ejector tool being dimensioned for free longitudinal movement inward of said other end and into said second portion for ejecting extruded material therefrom. 2. press means for forcing said plunger member inward of said bore against the resistance of said material. 3. An arrangement as set forth in claim 1, wherein said plunger member has a substantially flat face extending in a plane perpendicular to the direction of movement of said plunger member in said bore and facing said annular face during said forcing of said plunger member by said press means. 3. said shoulder having an annular face directed toward said open end and defining an orifice of said second portion, 4. a circumferential part of said annular face being obliquely inclined relative to the direction of elongation of said bore, 4. An arrangement as set forth in claim 1, wherein said first portion is substantially cylindrical. 5. A method of forming a hinge element for a rising hinge in a shaping arrangement including a die body formed with an elongated, substantially straight bore having an open longitudinal end and a plurality of longitudinal portions differing in cross section, a first one of said portions extending inward from said open end, said body having a shoulder in said bore separating said first portion from a second longitudinal portion of said bore smaller in cross section than said first portion, said shoulder having an annular face directed toward said open end and defining an orifice of said second portion, a circumferential part of said annular face being obliquely inclined relative to the direction of elongation of said bore; and extruding means for extruding a plastically deformable material from said first portion of said bore through said orifice into said second portion, said extruding means including a plunger member dimensioned for movement in said first portion in conforming engagement with said die body, and press means for forcing said plunger member inward of said bore against the resistance of said material, which method comprises: a. introducing an elongated blank into the first portion of said bore, 5. said annular face having three additionaL circumferential parts, 6. two of said additional parts extending from said obliquely inclined part in respective planes offset in said direction and substantially perpendicular to said direction, and 6. A method of forming a hinge element for a rising hinge in a shaping arrangement including a die body formed with an elongated, substantially straight bore having an open longitudinal end and a plurality of longitudinal portions differing in cross section, A first one of said portions extending inward from said open end, said body having a shoulder in said bore separating said first portion from a second longitudinal portion of said bore smaller in cross section than said first portion, said shoulder having an annular face directed toward said open end and defining an orifice of said second portion, a circumferential part of said annular face being obliquely inclined relative to the direction of elongation of said bore, said annular face having three additional circumferential parts, two of said additional parts extending from said obliquely inclined part in respective planes offset in said direction and substantially perpendicular to said direction, and the third additional part connecting said two parts and extending between said planes obliquely relative to said direction; and extruding means for extruding a plastically deformable material from said first portion of said bore through said orifice into said second portion, said extruding means including a plunger member dimensioned for movement in said first portion in conforming engagement with said die body, and press means for forcing said plunger member inward of said bore against the resistance of said material, which method comprises: a. introducing an elongated blank into the first portion of said bore, b 1. said blank essentially consisting of metal and being dimensioned for longitudinal movement through said first portion, but too big for movement through said orifice; and b. forcing said plunger member inward of said bore by means of said press means until one portion of said metal is extruded through said orifice while another portion of said metal conformingly engages said annular face and an inner wall of said die body contiguously adjacent said annular face in said first portion to produce a metallic body conforming to the shape of said bore and of said face. 7. the third additional part connecting said two parts and extending between said planes obliquely relative to said direction; and b. extruding means for extruding a plastically deformable material from said first portion of said bore through said orifice into said second portion, said extruding means including |
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