Invention Grant
US07114359B2 Method for producing bent spring rails from an endless spring band
失效
从无端弹簧带生产弯曲弹簧导轨的方法
- Patent Title: Method for producing bent spring rails from an endless spring band
- Patent Title (中): 从无端弹簧带生产弯曲弹簧导轨的方法
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Application No.: US10415926Application Date: 2001-11-06
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Publication No.: US07114359B2Publication Date: 2006-10-03
- Inventor: Oliver Lenzen , Gerald Pachur , Oliver Blumenstock
- Applicant: Oliver Lenzen , Gerald Pachur , Oliver Blumenstock
- Applicant Address: FR
- Assignee: Valeo Systemes d'Essuyage
- Current Assignee: Valeo Systemes d'Essuyage
- Current Assignee Address: FR
- Agency: Young & Basile, P.C.
- Priority: DE10056054 20001111; DE10056055 20001111
- International Application: PCT/EP01/12838 WO 20011106
- International Announcement: WO02/38299 WO 20020516
- Main IPC: B21D11/10
- IPC: B21D11/10 ; B60S1/38

Abstract:
The invention relates to a method for producing bent spring rails from an endless spring band. The method is characterized by the following steps: continuous bending of a section of spring band; cutting the bent section of spring band into a spring rail; discontinuous reverse bending to reduce the internal stresses of the bent, cut-to-length spring rail by subjecting the spring rail to at least one reverse bending force and/or heat-treating the cut-to-length spring rails, the heat treatment being a low-temperature treatment in this case, preferably at a temperature of less than 200 *C.
Public/Granted literature
- US20040250598A1 Method for producing bent spring rails from an endless spring band Public/Granted day:2004-12-16
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