Method for the production of a hollow profile provided with a terminal lid, and jack console

Abstract

The invention relates to a process for producing a hollow profiled section ( 7 ) with bulges ( 37 ) which is provided with an end-side closure cover ( 7 ), and to a jack bracket ( 32 ) produced by means of this process. To allow simple production of an expanded hollow profiled section ( 6 ) provided with a closure cover ( 7 ) and to demonstrate a jack bracket ( 32 ) produced by this process which entails only a low level of manufacturing outlay yet nevertheless ensures a high ability to withstand mechanical stresses, it is proposed that a cup-like cover ( 7 ) be pushed into the hollow profiled section ( 6 ), with the hollow profiled section ( 6 ) being placed into a hydroforming die ( 1 ). After the latter has then been closed, an axial ram ( 8 ) is introduced into the cover ( 7 ) and into the end of the hollow profiled section, in such a manner that the rim side of the cover ( 7 ) is radially pressed to the surrounding hollow profiled section ( 6 ). The hollow profiled section ( 6 ) is then widened by means of hydroforming pressure.

1 - 13 . (canceled)  
     
     
         14 . A process for producing a hollow profiled section with bulges that is provided with an end-side closure cover, in which process a cup-like cover is pushed into the hollow profiled section, comprising: 
 placing the hollow profiled section into a hydroforming die,    closing the die,    introducing an axial ram into the cover and into an end of the hollow profiled section, in such a manner that an edge side of the cover is radially pressed to the surrounding hollow profiled section, and    widening the hollow profiled section by hydroforming pressure.    
     
     
         15 . The process as claimed in  claim 14 , wherein the cover is fitted loosely into the hollow profiled section outside the forming die.  
     
     
         16 . The process as claimed in  claim 14 , wherein the cover is fed to the hollow profiled section, which has been placed in the forming die, by the axial ram, and wherein pressing is effected as this feeding operation takes place.  
     
     
         17 . The process as claimed in  claim 14 , wherein, before being inserted, the cover has an external diameter which is larger than an internal diameter of the hollow profiled section.  
     
     
         18 . The process as claimed in  claim 14 , wherein a rim of the cover is clamped in place by the hollow profiled section with hydroforming pressure combined, at the same time, with axial advancing of the axial ram, and wherein hollow profiled section material is displaced into a space delimited by a closure edge of the cover rim and an opposite shoulder of the axial ram by an advancing operation in combination with the hydroforming pressure.  
     
     
         19 . The process as claimed in  claim 14 , wherein an opening is formed in the cover base, and wherein the hollow profiled section is widened by pressurized fluid introduced into the interior of the hollow profiled section via a passage of the axial ram and the opening in the cover base.  
     
     
         20 . The process as claimed in  claim 19 , wherein an extension in the shape of a bottleneck is formed around the opening in the cover base at the cover, and wherein a molded projection in the form of a hollow journal on an end side of the axial ram is introduced into the extension.  
     
     
         21 . The process as claimed in  claim 14 , wherein, after widening the hollow profiled section, closure edges of the hollow profiled section and of a cover rim are acted on by a slide integrated guidably within the forming die and engaging in an axial running groove of the axial ram opening toward an end side of the axial ram.  
     
     
         22 . The process as claimed in  claim 14 , wherein closure edges of a rim of the cover are shaped so as to protrude radially outward.  
     
     
         23 . The process as claimed in  claim 14 , wherein a rim of the cover is perforated, and wherein, after the cover has been pressed to the hollow profiled section, hollow profiled section material is pressed into a hole which has been formed in the cover rim by a ram that is integrated guidably in the die.  
     
     
         24 . The process as claimed in  claim 14 , wherein the hollow profiled section and the cover, when the axial ram is being introduced, are pressed onto a section of a cavity of the die which widens conically toward the axial ram so as to form surfaces of matching contour on a rim of the cover and on the hollow profiled section.  
     
     
         25 . A jack bracket of the motor vehicle formed using a hollow profiled section produced as defined by  claim 14  and comprising flanges which are arranged on an end of the hollow profiled section which is remote from the cover fixing the bracket to a sill of the motor vehicle in a lower region thereof.  
     
     
         26 . The jack bracket as claimed in  claim 25 , wherein the bracket, on a cover base, has an opening which forms a receiving element for a stopper to which a jack can be attached.  
     
     
         27 . The process as claimed in  claim 16 , wherein before being inserted, the cover has an external diameter which is larger than an internal diameter of the hollow profiled section.  
     
     
         28 . The process as claimed in  claim 15 , wherein a rim of the cover is clamped in place by the hollow profiled section with hydroforming pressure combined, at the same time, with axial advancing of the axial ram, and wherein hollow profiled section material is displaced into a space delimited by a closure edge of the cover rim and an opposite shoulder of the axial ram by an advancing operation in combination with the hydroforming pressure.  
     
     
         29 . The process as claimed in  claim 16 , wherein a rim of the cover is clamped in place by the hollow profiled section with hydroforming pressure combined, at the same time, with axial advancing of the axial ram, and wherein hollow profiled section material is displaced into a space delimited by a closure edge of the cover rim and an opposite shoulder of the axial ram by an advancing operation in combination with the hydroforming pressure.  
     
     
         30 . The process as claimed in  claim 17 , wherein a rim of the cover is clamped in place by the hollow profiled section with hydroforming pressure combined, at the same time, with axial advancing of the axial ram, and wherein hollow profiled section material is displaced into a space delimited by a closure edge of the cover rim and an opposite shoulder of the axial ram by an advancing operation in combination with the hydroforming pressure.  
     
     
         31 . The process as claimed in  claim 15 , wherein an opening is formed in the cover base, and wherein the hollow profiled section is widened by pressurized fluid introduced into the interior of the hollow profiled section via a passage of the axial ram and the opening in the cover base.  
     
     
         32 . The process as claimed in  claim 16 , wherein an opening is formed in the cover base, and wherein the hollow profiled section is widened by pressurized fluid introduced into the interior of the hollow profiled section via a passage of the axial ram and the opening in the cover base.  
     
     
         33 . The process as claimed in  claim 17 , wherein an opening is formed in the cover base, and wherein the hollow profiled section is widened by pressurized fluid introduced into the interior of the hollow profiled section via a passage of the axial ram and the opening in the cover base.