EP0032584A2 - Dispositif d'arrêt et de blocage pour arbre de réglage - Google Patents

Dispositif d'arrêt et de blocage pour arbre de réglage Download PDF

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Publication number
EP0032584A2
EP0032584A2 EP80108161A EP80108161A EP0032584A2 EP 0032584 A2 EP0032584 A2 EP 0032584A2 EP 80108161 A EP80108161 A EP 80108161A EP 80108161 A EP80108161 A EP 80108161A EP 0032584 A2 EP0032584 A2 EP 0032584A2
Authority
EP
European Patent Office
Prior art keywords
spindle
pressing
ring
locking
disk
Prior art date
Legal status (The legal status 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 status listed.)
Granted
Application number
EP80108161A
Other languages
German (de)
English (en)
Other versions
EP0032584B1 (fr
EP0032584A3 (en
Inventor
Bruno Lotter
Dieter Hikl
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
EGO Elektro Geratebau GmbH
Original Assignee
EGO Elektro Gerate Blanc und Fischer 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 EGO Elektro Gerate Blanc und Fischer GmbH filed Critical EGO Elektro Gerate Blanc und Fischer GmbH
Priority to AT80108161T priority Critical patent/ATE4753T1/de
Publication of EP0032584A2 publication Critical patent/EP0032584A2/fr
Publication of EP0032584A3 publication Critical patent/EP0032584A3/de
Application granted granted Critical
Publication of EP0032584B1 publication Critical patent/EP0032584B1/fr
Expired legal-status Critical Current

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Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H37/00—Thermally-actuated switches
    • H01H37/02—Details
    • H01H37/12—Means for adjustment of "on" or "off" operating temperature
    • G—PHYSICS
    • G05—CONTROLLING; REGULATING
    • G05G—CONTROL DEVICES OR SYSTEMS INSOFAR AS CHARACTERISED BY MECHANICAL FEATURES ONLY
    • G05G5/00—Means for preventing, limiting or returning the movements of parts of a control mechanism, e.g. locking controlling member
    • G05G5/06—Means for preventing, limiting or returning the movements of parts of a control mechanism, e.g. locking controlling member for holding members in one or a limited number of definite positions only
    • 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
    • H01H19/02—Details
    • H01H19/10—Movable parts; Contacts mounted thereon
    • H01H19/11—Movable parts; Contacts mounted thereon with indexing means

Definitions

  • the invention relates to a locking and locking device for an adjusting spindle, in particular for the screw spindle of a temperature controller, with a non-rotatably arranged disc on the inner end of the spindle, which is optionally designed as a stop disc and is at least partially acted upon by a pressure element, wherein a resilient locking element on the pressing element cooperates with a corresponding part on the disc.
  • the pressing element consists of an elongated resilient sheet metal strip with a hole in its center for the passage of the inner end of the screw spindle.
  • Each half of the sheet metal strip is provided with a downward notch and the stop disc with a recess which interacts with the one notch.
  • This recess forms together with one notch a locking device.
  • the notch belonging to the latching device also presses onto the stop disk at other angular positions of the adjusting spindle.
  • the problem with this solution is that the smallest irregularities of the stop disk sliding surface can be felt immediately in the running moment and also due to the very high special surface pressure.
  • the invention has for its object to further improve a locking and locking device of the type mentioned in such a way that it has as uniform a running resistance as possible over the entire rotating range.
  • the invention proposes a device of the type mentioned in the introduction, in which the latching element is effective only in the area of the latching position.
  • the latching element can only be tailored to the needs of the latching, while the running inhibition is achieved by the pressing elements independently of the latching element.
  • the invention proposes that the pressure element has at least two pressure parts which are arranged symmetrically with respect to the axis of the spindle.
  • the symmetrical arrangement has the advantage that the pressing parts press evenly onto the disc. It is particularly advantageous if the pressure elements are arranged in such a way that they act as far as possible on the edge of the pane, since this results in a favorable lever arm.
  • the pressing element is in the form of a ring with approximately rectangular attachments arranged on the outside offset by 180 °. The diameter of the ring corresponds approximately to the diameter of the disc, so that the pressing parts actually act on the edge of the disc.
  • the rectangular lugs arranged on the outside serve to fasten the pressure element.
  • the invention provides that the locking element is arranged on the inside of the annulus. This has the advantage that the locking position is clearly noticeable, but no excessive forces are required to produce the locking position and to overcome the locking position.
  • the ring has a downwardly convex cross section.
  • the pressing parts are advantageously formed by beads in the ring. These beads are also easy to manufacture when manufacturing the ring.
  • the latching element has the shape of a W when viewed from the center of the ring, and acts with a corresponding cam, pin or the like. together on the disc.
  • the locking position is defined by the fact that the cam lies between the two inner legs of the W, while the two outer legs of the W make it easier to snap the cam into the locking position.
  • This snap Availability means simple assembly of the locking device according to the invention.
  • two pressing parts are present, which lie on a straight line that passes through the axis of the adjusting spindle and runs perpendicular to the axis connecting the projections.
  • This configuration ensures that the spring constant is identical for the two pressing parts, which leads to the same pressing force of both pressing parts and therefore to an extraordinarily uniform running inhibition of the adjusting spindle.
  • the actual temperature-regulating parts have been omitted for reasons of simplification. It consists of a housing 11. A plate 12 is screwed onto the front of the housing with approaches 13 for attachment to a stove or the like. is provided. A spindle nut 14 provided with an internal thread is inserted into the housing.
  • the spindle nut 14 has a circumferential projection 16 at its end located inside the housing 11.
  • a screw spindle 17 is screwed into the internal thread of the spindle nut 14 and has a rotary knob 18 at its outer end.
  • the inner end 19 of the screw spindle 17 has a non-circular cross section and is only shown in abbreviated form in FIG. In fact, the inner end 19 is longer than shown in Figure 1 and is provided with a ball which acts on an expansion socket, not shown.
  • a disc 20 is rotatably attached on the inner end 19 of the screw 17, a disc 20 is rotatably attached.
  • a locking bracket 21 is also arranged in the interior of the housing and has cuts 22 at its ends. These incisions serve to fasten the inner housing cover, after which the sections of the striker 21 above the incisions 22 are rotated.
  • the striker 21 holds a pressing element 24 with its projections 23, see FIG. 5.
  • This pressing element acts on the upper side of the disk 20 with two pressing parts 25 and presses it against the upper side of the upper stand 16. Since the upper stand 16 is firmly connected to the housing , pressing the disc 20 against the projection 16 causes a certain amount of friction which inhibits the running of the screw spindle 17 when turning.
  • the inward side of the disc 20 is provided with a cam 26 which is held in the position shown in Figure 1 by a resilient locking element 27.
  • This locking element 27 has the shape of a W, the actual locking position being brought about by the fact that the cam 26 lies between the inner legs of the W.
  • the outer legs of the W's serve to facilitate the engagement of the cam 26 in the engagement position.
  • the pressing parts 25 of the pressing element 24 in FIG. 1 are formed in that the pressing element 24 has a downward deflection in this area.
  • the pressing parts 25 lie on a straight line that runs through the longitudinal axis of the screw spindle 17 and that runs perpendicular to a straight line that connects the two lugs 28 of the pressing element 24 (see FIG. 2).
  • the line I-I in FIG. 2 corresponds to the section through the pressing element 24 in FIG. 1.
  • the pressing element has the shape of a ring 29, which is provided with two approximately rectangular projections 28 which are arranged offset by 180 ° and adjoining on the outside.
  • the ring 29 has a downwardly convex cross section, as can be seen in FIG.
  • the transition of the lugs 28 into the ring 29 is reinforced with the aid of beads 30.
  • the locking element 27 is arranged on the inside of the ring 29.
  • the pressing parts 25 lie on the line I-I.
  • FIG. 3 and 4 show more precise views of the disk 20, which is shown only schematically in FIG.
  • the disk 20 has a central opening 31 which has a non-circular cross section which corresponds to the cross section of the inner end 19 of the screw spindle 17.
  • the top of the plate 20 has a shoulder 32 corresponding to the cross section of the central opening 31.
  • This approach 32 is not shown in FIG. 1.
  • a cam 26 which, together with the latching element 27, defines the latching position.
  • the disk 20 has a constant radius over most of its circumference, but on its side located at the bottom left in FIG. 3, the disk 20 has a bulge 33 which, together with a projection 34 arranged in the inside of the housing 11, has a stop to limit the rotation of the screw spindle on both sides.
  • the upper side of the disk 20, which can be seen in FIG. 3 and forms the contact surface for the pressing parts 25, is preferably free of unevenness such as pressure points, bubbles, etc.
  • the striker 21 can be seen again in FIG. It can be screwed onto the inside of the housing 11. It has a central bore 35 through which the spindle nut 14 passes.
  • the web 36 of the U can be widened relative to the legs 37.
  • the legs 37 which are slightly bent outwards in the unloaded state have on their inside projections 23 which are formed by partially punching out the legs 37. These projections serve to hold the lugs 28 of the pressure element 24 in place.
  • the pressing element 24 is inserted from above between the legs 37, the ends of the projections 28 slide over the projections 23 and snap behind them. Both pressing parts 25 lie approximately in the middle of the pressing element 24 and act on the disk 20.

Landscapes

  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Automation & Control Theory (AREA)
  • Physics & Mathematics (AREA)
  • Underground Structures, Protecting, Testing And Restoring Foundations (AREA)
  • Connection Of Plates (AREA)
  • Rotational Drive Of Disk (AREA)
  • Centrifugal Separators (AREA)
  • Mechanical Control Devices (AREA)
  • Iron Core Of Rotating Electric Machines (AREA)
  • Transplanting Machines (AREA)
  • Soil Working Implements (AREA)
  • Safety Valves (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
  • Perforating, Stamping-Out Or Severing By Means Other Than Cutting (AREA)
  • Preliminary Treatment Of Fibers (AREA)
  • Turning (AREA)
EP80108161A 1980-01-16 1980-12-23 Dispositif d'arrêt et de blocage pour arbre de réglage Expired EP0032584B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT80108161T ATE4753T1 (de) 1980-01-16 1980-12-23 Rast- und feststelleinrichtung fuer eine stellspindel.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3001383 1980-01-16
DE19803001383 DE3001383A1 (de) 1980-01-16 1980-01-16 Rast- und feststelleinrichtung fuer eine stellspindel

Publications (3)

Publication Number Publication Date
EP0032584A2 true EP0032584A2 (fr) 1981-07-29
EP0032584A3 EP0032584A3 (en) 1981-12-02
EP0032584B1 EP0032584B1 (fr) 1983-09-21

Family

ID=6092172

Family Applications (1)

Application Number Title Priority Date Filing Date
EP80108161A Expired EP0032584B1 (fr) 1980-01-16 1980-12-23 Dispositif d'arrêt et de blocage pour arbre de réglage

Country Status (7)

Country Link
EP (1) EP0032584B1 (fr)
JP (1) JPS56116131A (fr)
AT (1) ATE4753T1 (fr)
AU (1) AU545334B2 (fr)
DE (2) DE3001383A1 (fr)
ES (1) ES498515A0 (fr)
YU (1) YU40402B (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0848401A3 (fr) * 1996-12-06 1999-03-10 Thermostat- und Schaltgerätebau GmbH & Co. KG Interrupteur thermique

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2379509A (en) * 1939-01-12 1945-07-03 William B Elmer Apparatus for heating and cooking
JPS4312369Y1 (fr) * 1965-10-11 1968-05-28
DE2430007A1 (de) * 1974-06-22 1976-01-08 Rau Swf Autozubehoer Drehschalter
DE2831204C2 (de) * 1978-07-15 1980-05-29 Standard Elektrik Lorenz Ag, 7000 Stuttgart Miniatur-Stufenschalter

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0848401A3 (fr) * 1996-12-06 1999-03-10 Thermostat- und Schaltgerätebau GmbH & Co. KG Interrupteur thermique

Also Published As

Publication number Publication date
YU9081A (en) 1983-06-30
DE3064987D1 (en) 1983-10-27
DE3001383A1 (de) 1981-07-23
AU545334B2 (en) 1985-07-11
EP0032584B1 (fr) 1983-09-21
JPS6221124B2 (fr) 1987-05-11
ATE4753T1 (de) 1983-10-15
JPS56116131A (en) 1981-09-11
AU6604981A (en) 1981-07-23
YU40402B (en) 1985-12-31
EP0032584A3 (en) 1981-12-02
ES8200775A1 (es) 1981-11-01
ES498515A0 (es) 1981-11-01

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