• 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:
    The moving armature drive unit for the needle of a needle printer includes a damping system with a return spring under the head of the armature. This spring (1) has a set of six equally spaced arms (3) radiating outwards from a hub with a hole (2) through the middle for the stem of the armature. The head of the armature rests on this hub. The ends of the arms rest on the edge of a supporting ring (4) on the closed top of the coil housing. These arms slope inwards gradually towards the outside, then slope outwards again sharply to form the contact parts for the ring.
    公开号:SU1013309A1
    申请号:SU797770616
    申请日:1979-06-06
    公开日:1983-04-23
    发明作者:Мандел Вальтер
    申请人:Феб Роботрон Бюромашиненверк Земмерда (Инопредприятие)；
    IPC主号:
    专利说明:

    The invention is used in retractable core electromagnets for matrix printing requiring short end retractable electromagnets at high operating frequencies.
    The use of short-stroke magnet electromagnets for matrix printing requires for the retractor core to return to the quiescent position after printing the spring elements, taking into account the small dimensions and high operating frequency of the electromagnets with the magnetic core with their high durability. Particularly suitable for this case were flat spring elements with radially arranged spring arms. These spring elements act on the corresponding retracting core and they rest with spring arms on the support ring.
    From the description of the invention to the non-accredited application of the Federal Republic of Germany No. 2624809 a flat spring element is known whose spring arms have side bevels such that the shape of the spring element is relatively closed.
    The disadvantages of this spring element truss are that the relatively closed form of the spring element serves to produce it by etching. The resulting edges have a surface with cracks that have an adverse effect on high strength during long-term loading, so the danger of breaking the spring arms is relatively high. In addition, the effective length of the bend is reduced by the side braces more than necessary. Such technical solutions have been developed, which refuse from the side braces (nonacceptable application of Germany No. 25 34 280. However, the narrow support area of the spring support ring causes a large amount of wear in the bearing area of the support holtz.
    The aim of the invention is the development of a flat spring element with radially arranged spring arms for short-stroke electromagnets with retractable core, for which the danger of breaking of spring arm even at high operating frequencies of the electromagnet with retracting core is significantly reduced and. early wear in the bearing area of the support ring is avoided.
    Based on the purpose of the invention, the object of the invention is to design the spring arms of the spring
    element in such a way that it is possible to precisely process the edges of the spring arms with maximum performance on the support area of the spring arms on the support ring.
    In accordance with the invention, the problem is solved in that the spring arms to the support area of the support ring have a trapezoidal shape and, in the support area of the support ring, oppositely trapezoidal shape. Opposing contours of adjacent spring arms in the support area of the support ring to the intersection point with the corresponding contours outside the support area are parallel to each other,
    FIG. 1 shows a spring element with a support ring, a slit / in FIG. 2 - the same, top view.
    The task of the spring element 1 is to return the retractable core of the electromagnet with the extension Core from the printing
    position to rest. The drilled hole 2 of the spring element 1 serves to receive the retractable core, which is supported by the rear part, with a spring on the surface of the spring element 1, at one end of which
    5 attached printing needle. In the case of excitation of an electromagnet with a wedge core, the retractable core moves towards the printing position, with the spring
    0, element 1 is tightened by the rear side of the retractable core. The back rest of the spring element 1 serves as the support ring 4, on which the spring element 1
    5 is supported by spring arms 3. The spring element 1 is supported on the support ring 4 only by the trapezoidal ends of the spring table 3, so that the length of the bend is possible. when tensioning spring element 1 is maximized. The edges of the trapezoid spring shoulder 5 in the support area of the support ring 4 are parallel to the adjacent trapezoid ends of the spring arms 3 and can
    5 to be machined with a grinding wheel. It is recognized as an invention according to the results of the examination carried out by the Office for the Invention of the German Democratic Republic.
    权利要求:
    Claims (2)
    [1]
    1. SPRING ELEMENT FOR ELECTROMAGNETS WITH A TIGHTENING CORE with spring arms radially spaced and resting on the support ring, the spring element 'interacting with the retraction core, characterized in that the spring arms
    3 to the support region of the support ring 4 are trapezoidal and in the support region of the support ring 4 are oppositely trapezoidal, the contours of adjacent spring arms 3 being opposite to each other in the support region of the support ring
    4 to the point of intersection with the corresponding contours of the spring arms
    3 outside the support region of the support ring 4 are parallel to each other.
    [2]
    2. The element of pop. 1, characterized in that the contours of the spring arms 3 form in the supporting region of the support ring 4 with the contour. with frames of spring arms 3 outside the support region of the support. rings 4 obtuse angle. ''
    类似技术:
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    FR2366941A1|1978-05-05|DAMAGED DISC WHEEL FOR HEAVY-DUTY TRUCKS
    同族专利:
    公开号 | 公开日
    DE2919697A1|1980-01-10|
    DD136814A1|1979-08-01|
    CS223561B1|1983-10-28|
    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    US4525695A|1984-04-04|1985-06-25|Parker Hannifin Corporation|Force motor with ball mounted armature|
    US4563664A|1984-04-04|1986-01-07|Parker-Hannifin Corporation|Force motor with contoured spring coupling|
    DE4244444A1|1992-12-23|1994-07-07|Mannesmann Ag|Electromagnetic valve with electric current feed for electromagnetic coil|
    DE4244443C2|1992-12-23|1998-11-26|Mannesmann Ag|Electromagnetic drive|
    JP3713765B2|1995-10-06|2005-11-09|日産自動車株式会社|Anti-vibration support device|
    法律状态:
    优先权:
    申请号 | 申请日 | 专利标题
    DD20639478A|DD136814A1|1978-06-30|1978-06-30|SPRING ELEMENT FOR DIVING ANCHOR MAGNETS|
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