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    Method of manufacturing solid wheel rims
    3.
    发明授权
    Method of manufacturing solid wheel rims 失效
    实心轮圈的制造方法

    公开(公告)号：US4143533A

    公开(公告)日：1979-03-13

    申请号：US802453

    申请日：1977-06-01

    Applicant: Walter Bosch

    Inventor： Walter Bosch

    IPC: B21D53/30 ,  B60B25/00

    CPC classification number: B21D53/30 ,  B60B25/00 ,  Y10T29/49529

    Abstract: A method of manufacturing a solid wheel rim having a wheel rim flange at one end of a wheel rim base and a spring-ring groove at an opposite end of the base, from a rolled and longitudinally welded sheet-metal ring of a predetermined inner diameter having a reduced wall thickness over at least a part of its length, includes the expansion of a portion of the ring to produce an annular groove zone having an inner diameter equal to the predetermined inner diameter, an enlarged zone having an inner diameter greater than such predetermined diameter, and a tapered zone located between the annular groove and enlarged zones, the wall thickness of the ring being reduced during a pressing operation, and the spring-ring groove as well as the wheel rim flange being formed during a rolling operation.

    Abstract translation: 一种制造实心轮缘的方法，其具有在轮辋底座的一端处的轮辋凸缘和位于基座的相对端的弹簧环槽与预定内径的轧制和纵向焊接的金属板 在其长度的至少一部分上具有减小的壁厚，包括环的一部分的膨胀以产生具有等于预定内径的内径的环形槽区，具有大于其的内径的扩大区 预定直径，以及位于环形槽和扩大区之间的锥形区域，在压制操作期间环的壁厚减小，并且在滚动操作期间形成弹簧环槽以及轮缘凸缘。

    Method of manufacturing solid wheel rims
    4.
    发明授权
    Method of manufacturing solid wheel rims 失效
    实心轮圈的制造方法

    公开(公告)号：US4127020A

    公开(公告)日：1978-11-28

    申请号：US816758

    申请日：1977-07-18

    Applicant: Walter Bosch

    Inventor： Walter Bosch

    IPC: B21D53/30 ,  B23K11/04

    CPC classification number: B21D53/30 ,  Y10T29/49529 ,  Y10T29/49531

    Abstract: A method of manufacturing a solid wheel rim having a wheel-rim flange at one end of a wheel rim base and a spring-ring groove at an opposite end of the base, from a rolled and a longitudinally welded sheet-metal ring of a predetermined inner diameter having a reduced wall thickness over at least a part of its length, includes the contraction of a portion of the ring to produce an annular groove zone having an inner diameter of a first predetermined size, an enlarged zone having an inner diameter greater than the inner diameter of such predetermined size, and a tapered zone located between the annular groove and enlarged zones, the wall thickness of the ring being reduced during a pressing operation, and the spring-ring groove as well as the wheel-rim flange being formed during a rolling operation.

    Abstract translation: 一种制造实心轮缘的方法，其具有在轮辋底座的一端处的轮辋凸缘和位于基座的相对端的弹簧环槽，其具有预定的滚动和纵向焊接的金属板 具有在其长度的至少一部分上具有减小的壁厚的内径包括环的一部分的收缩，以产生具有第一预定尺寸的内径的环形槽区域，具有大于或等于 这种预定尺寸的内径和位于环形槽和扩大区之间的锥形区域，在压制操作期间环的壁厚减小，并且弹簧环槽以及轮缘凸缘形成 在滚动操作期间。

    Process and a spinning lathe for producing wheel rims
    5.
    发明授权
    Process and a spinning lathe for producing wheel rims 失效
    工艺和旋转车床用于生产轮辋

    公开(公告)号：US4409811A

    公开(公告)日：1983-10-18

    申请号：US276865

    申请日：1981-06-24

    Applicant: Walter Bosch

    Inventor： Walter Bosch

    IPC: B21D22/16 ,  B21D53/30 ,  B21H1/10

    CPC classification number: B21D22/16 ,  B21D53/30 ,  Y10T29/49531

    Abstract: The process of the invention is designed for producing wheel rims having a snap-in groove on one side of the rim, in which a blank having an inner coned part for forming the eventual wall of the snap-in groove in the completed wheel rim and with an outer cylindrical part joined up with the smaller end of the coned part is formed on a spinning lathe using spinning rollers by outwardly bending and flaring the outer cylindrical part. In the process the blank is slipped onto a mandril which has a coned outer face to be in line with the coned form of the blank, while the outer cylindrical part of the blank stationarily extends out beyond the end of the mandril. Then the blank is gripped with an outer chuck and then at least one spinning roller, conforming to the desired form to be produced, is moved axially up against the end of the blank overlapping the mandril so that, while causing axial upsetting of the blank, the outer cylindrical part is bent outwards against the outer chuck for forming the outer wall of the snap-in groove.

    Abstract translation: 本发明的方法被设计用于制造具有在轮缘的一侧上的卡入槽的轮缘，其中具有用于在完成的轮缘中形成卡入槽的最终壁的内圆锥部分的坯料和 与圆锥形部分的较小端部连接的外圆柱形部分通过向外弯曲和扩张外圆柱形部分而在旋转车床上使用旋转辊形成。 在该过程中，坯料被滑动到具有锥形外表面的锥形管以与坯料的锥形形状对齐，而空白的外圆柱形部分固定地延伸超出曼尼尔的端部。 然后用外部卡盘夹住坯料，然后将符合要制造的所需形状的至少一个旋转辊轴向移动抵靠与该心轴重叠的坯料的端部，使得在引起坯件轴向镦锻的同时， 外圆柱形部分向外弯曲抵靠外卡盘以形成卡入槽的外壁。

    Air-measuring device
    6.
    发明授权
    Air-measuring device 失效
    空气测量装置

    公开(公告)号：US5167147A

    公开(公告)日：1992-12-01

    申请号：US656079

    申请日：1991-03-01

    Applicant: Klaus-Juergen Peters ,  Walter Bosch ,  Hans-Peter Stiefel ,  Karl Gmelin ,  Kurt Frank ,  Thomas Schwegel

    Inventor： Klaus-Juergen Peters ,  Walter Bosch ,  Hans-Peter Stiefel ,  Karl Gmelin ,  Kurt Frank ,  Thomas Schwegel

    IPC: G01F1/68 ,  F02D41/18 ,  G01F1/684 ,  G01F5/00

    CPC classification number: G01F1/6842 ,  F02D41/187 ,  G01F5/00

    Abstract: An air-measuring device for measuring the air mass taken in by an internal combustion engine which has a main flow channel, having a venturi section, and a temperature-dependent measuring resistor arranged in a bypass channel, the bypass channel opening upstream and downstream of the smallest flow cross-section of the venturi section in the direction of flow, in order to reduce the noise component in the measurement signal of the measuring resistor a channel region with an inlet and outlet opening is formed in the bypass channel, which channel region accommodates the measuring resistor in a central portion. The channel region is designed in such a way that the ratio of the flow cross-section of the central portion to the smallest cross-section of the venturi section is from 1:8 to 1:25 and the ratio of the cross-section to the cross-section of the inlet and outlet opening is in each case from 1:1 to 1:2.

    Abstract translation: PCT No.PCT / DE90 / 00439 Sec。 371 1991年3月1日 102（e）1991年3月1日PCT申请1990年6月8日PCT公布。 公开号WO91 / 00987 日本1991年1月24日。一种用于测量由内燃机吸入的空气质量的空气测量装置，所述内燃机具有主流道，具有文氏管部分和布置在旁通通道中的温度测量电阻器， 在文丘里管部分的流动方向的最小流动横截面的上游和下游旁通道旁通道，以便减小测量电阻器的测量信号中的噪声分量，其中形成具有入口和出口的通道区域 旁路通道，该通道区域在中央部分容纳测量电阻器。 通道区域的设计使得中心部分的流动横截面与文丘里管部分的最小横截面之比为1:8至1:25，横截面积与 入口和出口的横截面在每种情况下为1:1至1:2。

    Method of manufacturing solid wheel rims
    7.
    发明授权
    Method of manufacturing solid wheel rims 失效
    实心轮圈的制造方法

    公开(公告)号：US4127022A

    公开(公告)日：1978-11-28

    申请号：US802452

    申请日：1977-06-01

    Applicant: Walter Bosch

    Inventor： Walter Bosch

    IPC: B21D53/30 ,  B60B25/00

    CPC classification number: B60B25/00 ,  B21D53/30 ,  Y10T29/49529

    Abstract: A method of manufacturing a solid wheel rim having a wheel-rim flange at one end of a wheel-rim base and a spring-ring groove at an opposite end of the base, from a rolled and longitudinally welded sheet metal ring of a predetermined inner diameter having a reduced wall thickness over at least a part of its length, includes the expansion of a portion of the ring to produce an annular groove zone having an inner diameter equal to the predetermined inner diameter, an enlarged zone having an inner diameter greater than such predetermined diameter, and a tapered zone located between the annular groove and enlarged zones, the wall thickness of the ring being reduced during a pressing operation, and forming the spring-ring groove and the wheel-rim flange upon application of pressure. The pressing operation and the applications of pressure may constitute a single working operation, or may be carried out by using first, second and third presses, respectively. SUThe invention relates to a method of manufacturing solid wheel rims, for example for trucks or lorries, with a wheel flange at one side of the wheel rim base and a spring ring groove at the other side, from a rolled (rounded) and longitudinally welded sheet metal ring which is shaped to the respective section shape and the wall thickness of which is reduced over at least part of its length.In a known method of this kind (German Federal Republic Offenlegungsschrift 2343247) the spring ring groove is first of all impressed at one end of the sheet metal ring, the sheet metal ring is then shaped in determined zones from the spring ring groove towards the flange end and then stretched to its desired wall thickness and thereafter the other end is opened out to form the flange. The stretching takes place therewith through two rolling surpluses, the wheel rim base being extended in the second surplus. This known method is relatively complicated on the one hand having regard to its separate operations or procedures, as the extension of the wheel-rim base and the formation of a recess for the spring ring have to take place in separate operations, and on the other hand is relatively expensive having regard to the tools employed. Over and above that there is also not attained at least in the zone of the spring ring groove the optimum varying wall thickness which is in comformity with the incident loads, as the spring ring groove is formed before the extension is effected. Thus, too much unneccessary material is always accumulated. Moreover after the known method the outer edging must subsequently be calibrated and the radii between the wheel rim base and on the one hand the annular groove, and on the other hand the flange, have to be smoothed.An object of the present invention is to provide a method of the initially-mentioned kind in which there is obtained over the whole profile of the wheel rim a varying wall thickness precisely conforming in all points and zones to the required cross-section, and which can be conducted simply and with cheaper tools.In attaining this objective provision is made according to the invention for the rolled and longitudinally-welded sheet-metal ring to be partially enlarged during the rounding operation by variable expanding, for this enlarged zone together with the annular groove end and an inclined zone located therebetween to be then reduced in wall thickness by hydraulic pressure or application of pressure, for the annular groove outer end to be pressed through about 90.degree. and for the sheet-metal ring then to be bent outwardly flat acute-angled at its flange end and to be shaped to a rounded flange.In this way there is produced a relatively simple method of manufacturing solid wheel rims, in which, by hydraulically pressing the enlarged sheet metal ring at each zone of the later flange, of the wheel-rim base and of the annular groove, precisely these wall thicknesses and that transition between two different wall thicknesses can be achieved which conforms to the later loading in the working condition. This effects a saving in material and makes possible an increase in strength and rigidity of the wheel-rim surface in specific zones. It is possible with this procedural step to stretch those zones at which little material is repuired, and to put or displace this material into those zones at which much material is required. This can be reproduced with a very high degree of accuracy. The simplicity of this procedural step is a result of the possibility of pressing in one working operation also the conical transition to the later wheel-rim flange together with the reduction in wall thickness. A further advantage consists in that the likewise necessary rounding of the sheet-metal ring after its longitudinal welding is used at the same time for the purpose of expanding the ring in such a way that the later wheel-rim base and zone of the later flange receives a greater diameter relative to the annular groove, there being formed between these two different diameters a conical zone which later forms the transition from the annular groove to the wheel-rim base. After these two essential procedural steps which make possible a wall thickness adaptation to optimum requirements and compensation for tolerances in the starting material by the axial displacement of the material and hence simple trimming operations and a constant contour yield in the critical zones, there takes place the further pressing operations which with simple tools and simpler types of machines achieve an economic improvement in the hydraulic pressure profiling. A further advantage consists in that, in the method according to the invention, subsequent smoothing in the rounded zones between the wheel-rim base and both the annular groove and the flange is not necessary, since the smoothing effect is attained on pressing of the annular groove and the flange.In an embodiment of the present invention the inclined wall zone extending between the annular groove and the wheel-rim base is pressed to a cone the inner surface of which subtends an angle .gamma. of 28.degree. with the axis of rotation. This is essential for the centering on mounting the wheel rim on the wheel spider.In order to achieve an improved loading of the wheel-rim, the flange end is preformed by first of all being bent off at an angle smaller than that at which it is finally bent.In further embodiments of the invention, the wall thickness reduction and also all other procedural steps take place in one press or a plurality of presses.

    Abstract translation: 一种制造实心轮缘的方法，该实心轮缘在轮辋底座的一端处具有轮辋凸缘，在基座的相对端处具有与预定内侧的轧制且纵向焊接的金属板的弹簧环槽 直径在其长度的至少一部分上具有减小的壁厚，包括环的一部分的膨胀以产生具有等于预定内径的内径的环形槽区，具有大于 这种预定直径，以及位于环形槽和扩大区之间的锥形区域，在压制操作期间环的壁厚减小，并且在施加压力时形成弹簧环槽和轮缘凸缘。 按压操作和压力的应用可以构成单个工作操作，或者可以分别通过使用第一，第二和第三压力机进行。

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