초록 ▼

The invention relates to a method for producing a throttle valve unit for installation into a flow conduit through which a gas flow passes. A flap shaft of the throttle valve unit is affixed to a stamped insert part inside a fastening region. The stamped insert part, which includes an insert border,

The invention relates to a method for producing a throttle valve unit for installation into a flow conduit through which a gas flow passes. A flap shaft of the throttle valve unit is affixed to a stamped insert part inside a fastening region. The stamped insert part, which includes an insert border, is molded into a housing. At the same time as the stamped insert part is molded into the housing, the flap shaft affixed to the stamped insert part is molded-in inside the fastening region. A planar region of the stamped insert part connected to the flap shaft is cut out from this stamped insert part.

대표청구항 ▼

1. A method for producing a throttle valve unit to be installed in a flow conduit (24) through which a gas flow (40) passes, the method comprising:a) affixing a flap shaft (4) to a stamped insert part (1) inside a fastening region (3), said stamped insert part (1) including an insert border (7), b)

1. A method for producing a throttle valve unit to be installed in a flow conduit (24) through which a gas flow (40) passes, the method comprising:a) affixing a flap shaft (4) to a stamped insert part (1) inside a fastening region (3), said stamped insert part (1) including an insert border (7), b) molding in an injection molding die a plastic housing (17) onto the insert border (7) of the stamped insert part (1), c) molding a plastic material around the flap shaft (4) at the same time as the housing (17) is molded onto the insert border (7) of the stamped insert part (1) by injecting plastic material about at least a portion of the flap shaft (4), and d) cutting out a planar region (2) of the stamped insert part (1) connected to the flap shaft (4) out from the stamped insert part (1). 2. The method according to claim 1, wherein the planar region (2) is cut out from the stamped insert part (1) through the use of laser cutting.3. The method according to claim 1, further comprising providing a weakened zone (16) in the shaped insert part (1), and cutting the planar region (2) out along the weakened zone (16).4. The method according to claim 1, wherein at the same time as the stamped insert part (1) is molded into a housing material (17), the housing material (17, 31) is caused to penetrate into openings (8) in the insert border (7) of the stamped insert part (1).5. The method according to claim 1, wherein when the fastening region (3) is molded-in with plastic material, the plastic material is caused to penetrate into openings (6, 13) in the planar region (2) of the stamped insert part (1) and the flap shaft (4).6. The method according to claim 5, further comprising press fitting bearing bushes (19, 20) onto the flap shaft (4) after the fastening region (3) is molded-in with plastic material (18).7. The method according to claim 6, further comprising providing recesses (9, 10) in the border (7), and press fitting the bearing bushes (19, 20) in the vicinity of recesses (9, 10).8. The method according to claim 5, further comprising providing bracket-like punched parts (11, 12, 15) in the planar region (2) of the stamped insert part (1), and enclosingthe bracket-like punched parts (11, 12, 15) with plastic when the fastening region (3) is molded in.9. The method according to claim 4, wherein when the fastening region (3) is molded-in with plastic material, the plastic material is caused to penetrate into openings (6, 13) in the planar region (2) of the stamped insert part (1) and the flap shaft (4), and wherein the method further comprises providing openings (6) in the planar region (2) of the stamped insert part (1), and when the fastening region (3) is molded-in with plastic material (18), ribs (21) are formed, which penetrate through the openings (6).10. The method according to claim 8, further comprising forming the bracket-like punched parts (11, 12, 15) spaced apart from one another in an alternating sequence on the top and bottom (33, 34) of the planar region (2) of the stamped insert part (1).11. The method according to claim 8, further comprising forming interstices in the fastening region (3) between the bracket-like punched parts (11, 12, 15) of the stamped insert part (1), which interstices permit the plastic material (18) to flow through.12. A throttle valve unit produced according to the method according to claim 1, the valve further comprising a weakened zone (16) in the stamped insert part (1), the weakened zone bordering the planar region (2) to be cut out and being embodied on one of the sides (33, 34) or on both sides (33, 34) of the stamped insert part (1).13. The throttle valve unit according to claim 12, wherein the stamped insert part (1) comprises bracket-like punched parts (11, 12, 15), which encompass the flap shaft (4), and an insert border (7) provided with a number of openings (8).14. The throttle valve unit according to claim 13, wherein the bracket-like punched parts (11, 12, 15) in the fastening region (3) of the stamped insert part (1) are embodied in alternating fashion on the top and bottom (33, 34).15. The throttle valve unit according to claim 13, wherein the flap shaft (4) comprises openings (13) that pass all of the way through it, which openings are disposed in the fastening region (3), next to the bracket-like punched parts (11, 12) of the stamped insert part (1).16. The throttle valve unit according to claim 13, wherein the openings (13) that pass all of the way through the flap shaft (4) in the fastening region (3) are covered by the bracket-like punched parts (15) in the planar region (2) of the stamped insert part (1).