DE350871C - Lever switching mechanism (ratchet) for tools and machine tools - Google Patents

Lever switching mechanism (ratchet) for tools and machine tools

Info

Publication number
DE350871C
DE350871C DENDAT350871D DE350871DD DE350871C DE 350871 C DE350871 C DE 350871C DE NDAT350871 D DENDAT350871 D DE NDAT350871D DE 350871D D DE350871D D DE 350871DD DE 350871 C DE350871 C DE 350871C
Authority
DE
Germany
Prior art keywords
tools
lever
ratchet
switching mechanism
sleeve
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.)
Expired
Application number
DENDAT350871D
Other languages
German (de)
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.)
Individual
Original Assignee
Individual
Publication date
Application granted granted Critical
Publication of DE350871C publication Critical patent/DE350871C/en
Expired legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
    • B25B—TOOLS OR BENCH DEVICES NOT OTHERWISE PROVIDED FOR, FOR FASTENING, CONNECTING, DISENGAGING OR HOLDING
    • B25B13/00—Spanners; Wrenches
    • B25B13/46—Spanners; Wrenches of the ratchet type, for providing a free return stroke of the handle
    • B25B13/461—Spanners; Wrenches of the ratchet type, for providing a free return stroke of the handle with concentric driving and driven member
    • B25B13/462—Spanners; Wrenches of the ratchet type, for providing a free return stroke of the handle with concentric driving and driven member the ratchet parts engaging in a direction radial to the tool operating axis

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Mechanical Operated Clutches (AREA)
  • Gear-Shifting Mechanisms (AREA)

Description

Hebelschaltwerk (Ratsche) für Werkzeuge und Werkzeugmaschinen. Das neue Schaltwerk soll sich durch große Einfachheit und geräuschlosen sowie spielfreien Gang in der mitnehmenden Richtung auszeichnen, nie versagen und einer Abnutzung so gut wie garnicht unterworfen sein.Lever switching mechanism (ratchet) for tools and machine tools. That new rear derailleur is said to be great simplicity and noiseless as well as backlash-free Excellent gear in the driving direction, never failing and wearing out to be as good as not subject at all.

Auf der Zeichnung ist ein. Ausführungsbeispiel des neuen Schaltwerks dargestellt. . Es besitzt hier eine Büchse b mit einem Vierkantloch o ; die Büchse kann auch jede andere Form haben. Um den zylindrischen Hals der Büchse b dreht sich der Schalthebel lt. Beide Teile haben in ihrer Nabe r bzw. r' je eine zylindrische Aussparung von gleichem Innendurchmesser, die einander zugekehrt sind und in welche eine gemeinschaftliche zylindrische Schraubenfeder finit ihrem Außendurchmesser schlüssig eingesetzt ist. Hat diese Schraubenfeder s Rechtsdrehung, so wird bei einer Rechtsdrehung des Schalthebels h die Feder auseinandergerollt und klemmt sich dadurch sofort in beide Naben der Büchse b und des Hebels k fest, d. h. die Büchse b wird durch den Schalthebel 1a mitgedreht. Hei einer Linksdrehung des Hebels 1a wird aber dieselbe Feder s etwas zusammengerollt und nimmt daher die Büchse b nicht mit.On the drawing is a. Embodiment of the new rear derailleur shown. . It has here a bushing b with a square hole o; the sleeve can also have any other shape. The switching lever rotates around the cylindrical neck of the sleeve b . Both parts have a cylindrical recess of the same inner diameter in their hub r and r ', which face each other and into which a common cylindrical helical spring is inserted finely with its outer diameter. If this helical spring s clockwise rotation, the spring is rolled apart when the shift lever h is turned clockwise and is immediately clamped in both hubs of the bushing b and the lever k, ie the bushing b is rotated by the switching lever 1a. When the lever 1a is turned to the left, however, the same spring s is slightly rolled up and therefore does not take the sleeve b with it.

Anstatt auf einer Büchse b mit einem Loch kann auch der. Schalthebel Za auf einer Leitspindel in ähnlicher Weise drehbar. angeordnet sein. Die Schraubenfeder darf auch an einem der Teile (an der Büchse oder am Hebel) befestigt sein. .Instead of a bushing b with a hole, the. Gear lever Za is similarly rotatable on a lead screw. be arranged. The coil spring may also be attached to one of the parts (on the sleeve or on the lever). .

Claims (1)

PATEN T-ANSPRUcH: Hebelschaltwerk (Ratsche) für Werkzeuge und Werkzeugmaschinen, dadurch gekennzeichnet, daß der Hebel, die Kurbel o. dgl. drehbar auf eine Büchse mit Vierkant- oder sonstigem Loch oder auf einer Leitspindel o. dgl. aufgesetzt ist, und das die Büchse und der Hebel in ihren Naben je eine zylindrische Aussparung haben, in die eine gemeinschaftliche Schraubenfeder eingesetzt ist, die -sich bei einer Drehung des Hebels oder der Kurbel in der einen Richtung spreizt und die Büchse oder Leitspindelmitnimmt, dagegen bei einer Drehung in der anderen Richtung gleitet.PATENT T-CLAIM: Lever switching mechanism (ratchet) for tools and machine tools, characterized in that the lever, the crank or the like. Rotatable on a sleeve with a square or other hole or on a lead screw or the like is, and that the sleeve and the lever each have a cylindrical recess in their hubs have, in which a common coil spring is used, which -sich at a rotation of the lever or the crank in one direction and the sleeve spreads or takes the lead screw with it, but slides when rotated in the other direction.
DENDAT350871D Lever switching mechanism (ratchet) for tools and machine tools Expired DE350871C (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE350871T

Publications (1)

Publication Number Publication Date
DE350871C true DE350871C (en) 1922-03-27

Family

ID=6264903

Family Applications (1)

Application Number Title Priority Date Filing Date
DENDAT350871D Expired DE350871C (en) Lever switching mechanism (ratchet) for tools and machine tools

Country Status (1)

Country Link
DE (1) DE350871C (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5246290A (en) * 1991-06-06 1993-09-21 Alfred Bolz Gmbh & Co. Kg Cone mixer with swivel arm drive and sealing arrangement lubricated by an external lubricant receptacle

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5246290A (en) * 1991-06-06 1993-09-21 Alfred Bolz Gmbh & Co. Kg Cone mixer with swivel arm drive and sealing arrangement lubricated by an external lubricant receptacle

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