• 专利附录
  • 专利说明
  • 权利要求
  • 类似技术
  • 同族专利
  • 引用文献
  • 法律状态
  • 优先权
    • 专利摘要:
    A steering column for motor vehicles is connected to the pinion of a steering box by a universal joint and includes a flexible coupling (14, 15, 16, 17) which can yield axially and withstand bending moments in the plane of the shaft (13, 18) on which it is mounted. The flexible coupling consists of an axially deformable rubber disc (15) the opposite faces of which are connected to respective drive members (14, 17) fixed to two coaxial shaft elements (13, 18). The disc (15) and drive members (14, 16) are connected by pins (22) slidable in the holes in the disc (15), so that the overall length of the steering column can vary.
    公开号:SU1324582A3
    申请号:SU853856887
    申请日:1985-02-11
    公开日:1987-07-15
    发明作者:Кордиано Этторе
    申请人:Коринт С.Р.Л. (Фирма)；
    IPC主号:
    专利说明:

    This invention relates to steering columns for motor vehicles.
    The purpose of the invention is to increase reliability.
    FIG. 1 shows a steering column with a flexible joint; Fig.2 flexible connection; in fig. 3 is a section A-A in FIG. 2; FIG. 4 shows the connections of the steering column in FIG. 5 - flexible connection; in fig. 6 - the same, another option.
    The steering column connects the steering wheel t with the gear 2 of the steering mechanism 3. The shaft 4, carrying the wheel 1, is supported by a support 5 and a support 6 rigidly attached to the vehicle body. At the lower end of the shaft 4, the universal joint fork 7 is fixed, the other fork of which is held at one end of the intermediate shaft 8. The opposite end of the intermediate shaft carries one fork of the second universal joint 9, the second fork, which is attached to the shaft 10 of the steering gear 2 3
    The forks of universal joints 7 and 9 are exposed to the moments M, and ML S shown for simplicity in the plane of the pattern, which change as the column rotates and acts: on shafts 4, 8, and 10 as bending moments.
    On the intermediate shaft 8 is a flexible connection 11 disk type.
    One of the supports 5 axially secures the shaft 4. Compound 1.1 must be able to withstand the bending moments M and Mj. Figures 4 and 5 illustrate how the flexible connection 11 can withstand the moments M and Mj. The intermediate shaft 8 is formed by a steering shaft 12, to one of the ends of which is attached a fork 13 of the universal joint. At its opposite end, the shaft 12 carries one transmitting element 14 of the flexible joint. Shaft. 15 bears on itself the second transmitting element 16 of the flexible joint and the plug 17 of the second universal joint and is supported at points 18 and 19 by the tubular element of the shaft 12. The elastic deforming disk 20 is mounted between the front elements 14 and 16 by means of bolts 21. With this device two shafts 12 and 15 are free
    0
    five
    0
    five
    0
    five
    0
    3
    sial displacement relative to each other due to the deformation of the disk and connected last in relation to the torsion. It is also possible to eliminate the support between the two shafts 12 and 15 near the elastic disk, i.e. at point 19, since the disk is able to center the shafts in this area relative to each other.
    FIG. 4 shows a flexible joint similar to the flexible joint in FIG. 3, in which an elastic disk 20 is attached to the transmitting elements 14 and 16 by fingers 22 instead of the bolts 21 shown in FIG. 3. Fingers 22 are inserted into two metal elements 14 and. 16 and are provided with stop rings 23, the main purpose of which is to prevent any accidental disconnection of the connection.
    For shaft 12, it is possible to slide relative to shaft 15 in; the limits allowed by the retaining rings 23 which fulfill the function of the joint.
    This feature can be important for two reasons. First, it is a security aspect. When this type of connection is made, the return movement of the steering wheel in the event of a frontal collision of the vehicle is reduced, since the steering mechanism can. It moves a certain distance inwards without moving the steering wheel. Secondly, it is allowed that the installation of the assembly of the steering wheel-column-steering box was simplified, i.e. There is no need for adjusting the distance between the steering gear and the mounting of the steering column support, which is useful in automating the process line for installing an assembly.
    The slip feature can be achieved by other means, for example a spline joint between shafts 12 and 15. But this should lead to a tangible increase in cost, mainly due to the significant increase in precision that is necessary when cutting teeth to minimize play in the joint. A backlash of about one millimeter on one tooth can lead to an unacceptable overall backlash on the steering wheel, taking into account the initial diameter of the ring gear.
    The connection of the proposed type has the following advantages:
    the distance between the axes of the fingers is determined to be greater than the initial diameter of any gear ring;
    backlash can be completely eliminated by creating a slight tension between the fingers and the holes in the rubber disk or by allowing a small difference in the distance between the axes of the fingers and the holes in order to create a force fit between the fingers and the elastic disk. The latter solution may be suitable for preventing any friction between the rubber and the fingers and making it difficult to slip i. Metal or plastic bushes can be inserted into the disc holes to prevent the rubber-metal contact.
    The proposed device can be used to absorb energy in the event of a frontal collision. With appropriate formation of the form by the element of the joint, it is possible, after a certain movement between the two shafts 12 and 15, to create a collision of one transmitting element with the others and deformation (with absorption) of energy in this way. The amount of energy can be adjusted by changing the strength of the two transmitting elements (Figures 5 and 6), thereby simplifying the device. The transmitting element 21 of the flexible joint is driven directly to the plug 13 of the universal joint. The shaft 15 is centered by an elastic, deformable disk 20 and a sliding bearing surface formed in said plug 13. The shape of the transmitting element 24ltak, that after a certain relative sliding movement of two shafts, depending on the length of the fingers, it comes into contact with the transmitting elements 25 , rigidly fastened with the second shaft 15. From this point, the two shafts can slide against each other again, deforming only two elements and thus absorbing energy in such a way. The same. the result can be obtained by placing the transmission element 24 on the hollow shaft.
    权利要求:
    Claims (9)
    [1]
    Invention Formula
    1, A steering column for a motor vehicle containing a shaft with a flexible sliding joint, resistant to bending moments, mounted on at least one gear rigidly attached to the vehicle body, on one part of which the steering wheel is fixed, and the other is a steering mechanism, a flexible joint placed on a shaft, including a plastic deformable disk, two transmission elements connected to the disk surfaces, one of which is; fixed on one part of the steering shaft, and the other rigidly fixed on the other part, characterized in that, in order to increase reliability, it is equipped with a universal joint, with a fork placed on the shaft between the steering mechanism and a flexible joint, and the shaft is made hollow, in which another part is mounted coaxially with support at least at one point outside the plane of the deformable disk to ensure axial movement and relative rotation.
    [2]
    2. A column in accordance with claim 1, characterized in that it is provided with a second universal joint mounted between the flexible joint and the steering wheel.
    [3]
    Zg Column on PP. 1 and 2, characterized in that one transmission element is fastened directly to the universal joint fork.
    [4]
    4. Column according to claim 3, characterized in that the transmitting elements are connected to the deformable disk by means of bolts.
    [5]
    5. The column according to claim 3, which is distinguished by the fact that at least one of the transducer elements is provided with a finger fixed on it, slidably mounted in a hole made axially in a deformable disk.
    [6]
    6. A column according to claim 5, characterized in that the deformable disk is made of rubber with metal inserts installed in the holes.
    [7]
    7. Column according to claim 5, that is, so that the diameter of the holes in the deformable disk is less than the diameter of the fingers.
    [8]
    8. A column according to claim 5, characterized in that the distance between the axes of the fingers and the axes of the holes in the deformable disk in the disassembled state does not coincide.
    [9]
    9. A column in accordance with claim 8, that is, with at least one of the fingers provided with a retaining ring.
    12
    13
    go
    1
    13
    FIG. H
    15
    FIG. four
    7J
    5
    Editor A. Dolinich
    Compiled by V. Ionov Tehred N. Glushchenko
    Order 2974/58 Circulation 566Subscription
    VNIIPI USSR State Committee
    for inventions and discoveries 113035, Moscow, Zh-35, Raushsk nab., 4/5
    Production and printing company, Uzhgorod, st. Project, 4
    (figure 6
    Proofreader E. Roshko
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    同族专利:
    公开号 | 公开日
    JPS60252067A|1985-12-12|
    EP0162141A1|1985-11-27|
    IT8467511D0|1984-05-21|
    ES540043A0|1985-11-16|
    BR8501954A|1985-12-24|
    KR850007958A|1985-12-11|
    IT1179923B|1987-09-16|
    ES8601776A1|1985-11-16|
    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    FR2049617A5|1969-06-13|1971-03-26|Paulstra Sa|
    DE2032121A1|1970-06-30|1972-01-05|Volkswagenwerk Ag, 3180 Wolfsburg|Safety steering arrangement with a steering shaft and a steering tube in a telescopic arrangement|
    BE790452A|1971-11-04|1973-02-15|Reliance Electric Co|COUPLING OF SHAFTS AND ELEMENT INTENDED FOR THIS|
    FR2185127A5|1972-05-18|1973-12-28|Pitner Alfred|
    FR2430539B1|1978-07-05|1980-12-05|Kleber Colombes|
    DE3041528A1|1980-11-04|1982-05-13|Voith Transmit GmbH, 7920 Heidenheim|TELESCOPIC SHAFT|JPH0648187Y2|1986-01-18|1994-12-12|川崎重工業株式会社|Anti-vibration support Output shaft coupling device for marine engine|
    DE4032252C1|1990-10-11|1992-04-16|Jean Walterscheid Gmbh, 5204 Lohmar, De|
    KR920014678A|1991-01-29|1992-08-25|에타블리서멘트 쥬퍼비스|Steering shaft of vehicle|
    US5248214A|1991-04-03|1993-09-28|The Torrington Company|Separable connecting device for steering column|
    US5152718A|1991-09-03|1992-10-06|General Motors Corporation|Intermediate shaft assembly for steering system|
    GB2385034B|2002-02-11|2005-08-17|Nsk Steering Sys Europ Ltd|Component coupling unit for steering column|
    DE102012002660A1|2012-02-10|2013-08-14|FlexCon Germany GmbH|Elastic double torsion coupling|
    法律状态:
    优先权:
    申请号 | 申请日 | 专利标题
    IT67511/84A|IT1179923B|1984-05-21|1984-05-21|STEERING COLUMN FOR VEHICLES WITH SLIDING ELASTIC JOINT AND RESISTANT TO BENDING MOMENTS|
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