WO2004075225A1 - Arbre de commande destine a un interrupteur rotatif - Google Patents

Arbre de commande destine a un interrupteur rotatif Download PDF

Info

Publication number
WO2004075225A1
WO2004075225A1 PCT/EP2004/001808 EP2004001808W WO2004075225A1 WO 2004075225 A1 WO2004075225 A1 WO 2004075225A1 EP 2004001808 W EP2004001808 W EP 2004001808W WO 2004075225 A1 WO2004075225 A1 WO 2004075225A1
Authority
WO
WIPO (PCT)
Prior art keywords
reinforcement
shaft
selector shaft
switching
core
Prior art date
Application number
PCT/EP2004/001808
Other languages
German (de)
English (en)
Inventor
Günther Reimold
Siegfried Mannuss
Original Assignee
E.G.O. Elektro-Gerätebau GmbH
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by E.G.O. Elektro-Gerätebau GmbH filed Critical E.G.O. Elektro-Gerätebau GmbH
Priority to EP04713891A priority Critical patent/EP1597741B1/fr
Priority to DE502004003838T priority patent/DE502004003838D1/de
Publication of WO2004075225A1 publication Critical patent/WO2004075225A1/fr

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H19/00—Switches operated by an operating part which is rotatable about a longitudinal axis thereof and which is acted upon directly by a solid body external to the switch, e.g. by a hand
    • H01H19/54—Switches operated by an operating part which is rotatable about a longitudinal axis thereof and which is acted upon directly by a solid body external to the switch, e.g. by a hand the operating part having at least five or an unspecified number of operative positions
    • H01H19/60—Angularly-movable actuating part carrying no contacts
    • H01H19/62—Contacts actuated by radial cams
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H9/00—Details of switching devices, not covered by groups H01H1/00 - H01H7/00
    • H01H2009/0088—Details of rotatable shafts common to more than one pole or switch unit
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H3/00—Mechanisms for operating contacts
    • H01H3/32—Driving mechanisms, i.e. for transmitting driving force to the contacts
    • H01H3/42—Driving mechanisms, i.e. for transmitting driving force to the contacts using cam or eccentric

Definitions

  • the invention relates to a control shaft for rotary switches according to the preamble of claim 1.
  • the control shaft can have molded cams or cam disks and trigger switch contacts of the rotary switch.
  • a multi-layer shift shaft which has a core with a flattened D profile which can be inserted therein. This results in rib-like formations at one end, which can be used to trigger switching functions.
  • the object of the invention is to improve a shift shaft mentioned at the outset, in particular to improve the stability with an optimized use of material and production outlay. This object is achieved by a selector shaft with the features of claim 1.
  • Advantageous and preferred embodiments of the invention are the subject of the further claims and are explained in more detail below. The wording of the claims is made the content of the description by express reference.
  • a shift shaft mentioned at the beginning has a rib-shaped or rib-like reinforcement on its outside. This runs in the axial direction and can absorb compressive stresses and above all tensile stresses in order to avoid bending of the selector shaft. On the one hand, it is possible to use several such Train reinforcements side by side in the same direction. With suitable dimensions, however, a single reinforcement rib is sufficient in many cases. A one-piece molding of the reinforcement is particularly advantageous here. This can further increase the strength.
  • the amplification can advantageously extend over a wide central region of the selector shaft, for example up to shortly before the respective end of the selector shaft. For example, it can take up 70% to 90% of the length of the selector shaft.
  • the selector shaft advantageously has a substantially constant cross section, if one disregards the cams or cam disks. This cross-section is only expanded in the area of the reinforcement by the additional cross-section of the reinforcement.
  • the reinforcement in the form of ribs should preferably be continuous and in one piece without any interruptions.
  • a second reinforcing rib or a reinforcing rib with a larger cross section can be formed. It has proven to be advantageous if the gain projects from the selector shaft to an extent that is approximately 10% to 30%, in particular approximately 20%.
  • the reinforcement advantageously runs on a longitudinal region, which lies opposite a region which is particularly stressed by the cams or cam disks. This means that the reinforcement, in order to be able to absorb the tensile stresses, should point in the direction of force in which the strongest forces are exerted on the cams or cam disks in a certain rotational position.
  • These powers stir from switching contacts or the like, which are actuated or moved by the cams. In many cases, switch contacts are moved in certain different rotational positions. However, there is usually a particularly concentrated or medium range in which the aforementioned strongest forces can be determined.
  • the selector shaft can be manufactured in such a way that it consists of plastic in an outer area or has an outer plastic layer. It is thus possible for the selector shaft to have a core which, for example, either consists of a different and more stable material or is of a constant cross section and is therefore of a simpler design.
  • Switching shaft and / or core can be made of plastic, for example thermoplastic material.
  • the contour of the selector shaft or the outer region or the outer layer are particularly advantageously applied to a core in a spraying process.
  • a flattened round profile, for example in a D-shape, is an advantageous form for a core. This design, which differs from a circular shape, ensures that the core and outer area or outer layer are prevented from rotating.
  • the reinforcement in the area of the flattening of the round profile of the core or to arrange the core within the control shaft in this way. It is advantageous if the reinforcement does not protrude over the cross-section of the round profile, which would correspond to the continuous course of the cross-section without flattening. In other words, the shape and protrusion of the reinforcement should be coordinated with the flattening of the core.
  • the layer thickness of an outer layer is small compared to the diameter of the core. This reduces the risk of the entire selector shaft being distorted after the core is overmolded as a result of cooling.
  • the reinforcing rib representing a mass concentration can be used to compensate for other mass concentrations which can otherwise cause warping when the selector shaft is sprayed.
  • warping can be caused, for example, by the cams or cam disks usually being oriented rigidly in one direction or in an area.
  • a center of mass line of the cams or cam disks can be determined.
  • the reinforcement should run in order to avoid or at least reduce warping due to its own mass when the selector shaft cools down after spraying.
  • FIG. 1 shows a side view of a possible selector shaft with a reinforcing rib and a large number of cam disks
  • FIG. 2 shows a cross section through the selector shaft at the location of a substantially rotating cam disk, and has a protruding cam.
  • a switching shaft 11 is shown in side view. 2 and 3 show sectional drawings at different points with differently designed cam disks. It can be seen how the long selector shaft 11 is formed by a basic profile 13. Various types of cam disks 15 are formed on the base profile 13. In the exemplary embodiment shown, the cam disks 15 basically have a maximum radius or are shaped out of a circular disk with this maximum radius. In the case of the cam disk 15 according to FIG. 2, an incision 16 is removed from the cam disk 15. In Fig. 3, the cam disc 15 consists essentially of a disc with a very small radius beyond the base profile 13. A projection 17 is formed on this disk.
  • the switching contacts 19 press against the cam disks 15 from below. Their compressive force or switching force is shown by the upward-pointing arrows on all cam disks 15.
  • the switching contacts 19 can on the one hand be pure switching contacts which open or close.
  • variable-distance switches can also be provided as switching contacts, for example for thermal expansion switches with pre-setting of a switching path.
  • the cam disks 15 not only have stepped radii, but an evenly increasing or decreasing radius. The switching contacts 19 can thus be moved slowly and continuously as a function of an angle of rotation.
  • a core 21 with a flattened D profile is surrounded or surrounded by the base profile 13.
  • the base profile 13 has a flat 23, which is directed upwards in the drawings. It can thus be seen how the base profile 13 surrounds the core 21 with a uniform wall thickness.
  • a reinforcing rib 25 is formed pointing upwards. This has an approximately rectangular cross section. It can be seen from FIG. 3 that it does not protrude beyond the radius of the other basic profile 13. From Fig. 1 it can be seen how it extends over the entire central region of the length of the selector shaft 11 and thus about 70% to 80% of the length of the selector shaft.
  • the reinforcing rib 25 in the position according to the figures is arranged exactly opposite the switching contacts 19 and the forces caused by them. Thus, it can effectively prevent the shift shaft 11 from sagging. Since the control shaft 11 is usually supported at both ends, this risk of bending in the middle is greatest. In this respect, the reinforcing rib 25 is particularly advantageous in the middle in all cases. Furthermore, it can be seen from FIGS. 2 and 3 how the center of gravity of the cam disks 15 with the incisions 16 or the projection 17 cannot easily be precisely determined in each case due to their shape. However, it is certainly below the center of the control shaft 11, which forms the axis of rotation.
  • the reinforcement rib 25 can be used in the manufacturing process to achieve a certain center of gravity above the center point in comparison to an annular basic profile 13.
  • the center of gravity of the cam disks 15 below the pivot point can be compensated to the extent that warping of the selector shaft during cooling after the spraying process is avoided by accumulation of mass or material on one side.
  • a switching shaft for a rotary switch can be created, which has molded cams or cam disks.
  • a reinforcing rib is provided, which extends in the axial direction until just before the ends of the selector shaft. This reinforcing rib can absorb tensile stresses, which are caused by pressure forces from switching contacts, especially in the central region of the switching shaft. This prevents bending of the selector shaft.

Landscapes

  • Gear-Shifting Mechanisms (AREA)
  • Rotary Switch, Piano Key Switch, And Lever Switch (AREA)
  • Valve-Gear Or Valve Arrangements (AREA)
  • Switches With Compound Operations (AREA)
  • Control Of Transmission Device (AREA)
  • Mechanical Operated Clutches (AREA)
  • Mechanical Control Devices (AREA)

Abstract

Un mode de réalisation de l'invention concerne un arbre de commande (11) destiné à un interrupteur rotatif, cet arbre de commande (11) présentant des disques à cames (15) ou des cames (17) rapportées. Une nervure de renfort (25) est formée sur la face extérieure de l'arbre de commande (11), cette nervure s'étendant pratiquement jusqu'aux extrémités de l'arbre de commande dans le sens axial. Ladite nervure de renfort (25) peut absorber des efforts de traction exercés par des forces de pression de contacts de commande (19), principalement dans la zone centrale de l'arbre de commande (11), ce qui permet d'empêcher une flexion de l'arbre de commande (11).
PCT/EP2004/001808 2003-02-24 2004-02-24 Arbre de commande destine a un interrupteur rotatif WO2004075225A1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
EP04713891A EP1597741B1 (fr) 2003-02-24 2004-02-24 Arbre de commande destine a un interrupteur rotatif
DE502004003838T DE502004003838D1 (de) 2003-02-24 2004-02-24 Schaltwelle für drehschalter

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE10308449A DE10308449A1 (de) 2003-02-24 2003-02-24 Schaltwelle für Drehschalter
DE10308449.5 2003-02-24

Publications (1)

Publication Number Publication Date
WO2004075225A1 true WO2004075225A1 (fr) 2004-09-02

Family

ID=32863936

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2004/001808 WO2004075225A1 (fr) 2003-02-24 2004-02-24 Arbre de commande destine a un interrupteur rotatif

Country Status (7)

Country Link
EP (1) EP1597741B1 (fr)
CN (1) CN100435256C (fr)
AT (1) ATE362643T1 (fr)
DE (2) DE10308449A1 (fr)
ES (1) ES2286609T3 (fr)
PL (1) PL205107B1 (fr)
WO (1) WO2004075225A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8430961B2 (en) 2007-09-07 2013-04-30 Applied Materials, Inc. Source gas flow path control in PECVD system to control a by-product film deposition on inside chamber

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102010045215A1 (de) * 2010-09-13 2012-03-15 Audi Ag Schaltwelle sowie Verfahren zur Herstellung einer Schaltwelle
CN104681342B (zh) * 2015-01-22 2017-02-01 温州市华一机电有限公司 一种倒顺开关用转轴组件及其制作方法
CN114446685B (zh) * 2020-10-30 2024-03-01 北京铁路信号有限公司 一种开关控制装置与一种铁路信号记录器

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2340607A1 (fr) * 1976-02-07 1977-09-02 Ego Elektro Blanc & Fischer Interrupteur a cames
DE10044046A1 (de) * 2000-08-30 2002-03-14 Siemens Ag Schaltwelle für eien mehrpoligen Leistungsschalter und Verfahren zur Herstellung einer solchen Schaltwelle
EP1239504A1 (fr) * 2001-03-05 2002-09-11 E.G.O. ELEKTRO-GERÄTEBAU GmbH Arbre à cames pour un interrupteur électromécanique

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN2348479Y (zh) * 1998-01-22 1999-11-10 张茂良 多段式开关

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2340607A1 (fr) * 1976-02-07 1977-09-02 Ego Elektro Blanc & Fischer Interrupteur a cames
DE10044046A1 (de) * 2000-08-30 2002-03-14 Siemens Ag Schaltwelle für eien mehrpoligen Leistungsschalter und Verfahren zur Herstellung einer solchen Schaltwelle
EP1239504A1 (fr) * 2001-03-05 2002-09-11 E.G.O. ELEKTRO-GERÄTEBAU GmbH Arbre à cames pour un interrupteur électromécanique

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8430961B2 (en) 2007-09-07 2013-04-30 Applied Materials, Inc. Source gas flow path control in PECVD system to control a by-product film deposition on inside chamber

Also Published As

Publication number Publication date
DE502004003838D1 (de) 2007-06-28
EP1597741A1 (fr) 2005-11-23
PL205107B1 (pl) 2010-03-31
DE10308449A1 (de) 2004-09-16
CN100435256C (zh) 2008-11-19
PL376928A1 (pl) 2006-01-09
CN1754239A (zh) 2006-03-29
ATE362643T1 (de) 2007-06-15
EP1597741B1 (fr) 2007-05-16
ES2286609T3 (es) 2007-12-01

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