GB1211900A - Automatically reversible drive unit for a screwcutting die head - Google Patents

Automatically reversible drive unit for a screwcutting die head

Info

Publication number
GB1211900A
GB1211900A GB4454968A GB4454968A GB1211900A GB 1211900 A GB1211900 A GB 1211900A GB 4454968 A GB4454968 A GB 4454968A GB 4454968 A GB4454968 A GB 4454968A GB 1211900 A GB1211900 A GB 1211900A
Authority
GB
United Kingdom
Prior art keywords
pin
drive
housing
clutch
driving shaft
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
GB4454968A
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.)
Georg Fischer AG
Original Assignee
Georg Fischer AG
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 Georg Fischer AG filed Critical Georg Fischer AG
Publication of GB1211900A publication Critical patent/GB1211900A/en
Expired legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23G—THREAD CUTTING; WORKING OF SCREWS, BOLT HEADS, OR NUTS, IN CONJUNCTION THEREWITH
    • B23G1/00—Thread cutting; Automatic machines specially designed therefor
    • B23G1/02—Thread cutting; Automatic machines specially designed therefor on an external or internal cylindrical or conical surface, e.g. on recesses
    • B23G1/04—Machines with one working-spindle
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23G—THREAD CUTTING; WORKING OF SCREWS, BOLT HEADS, OR NUTS, IN CONJUNCTION THEREWITH
    • B23G1/00—Thread cutting; Automatic machines specially designed therefor
    • B23G1/22—Machines specially designed for operating on pipes or tubes

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Mechanical Operated Clutches (AREA)
  • Vehicle Body Suspensions (AREA)
  • Perforating, Stamping-Out Or Severing By Means Other Than Cutting (AREA)
  • Processing And Handling Of Plastics And Other Materials For Molding In General (AREA)

Abstract

1,211,900. Automatically reversible drive units. GEORG. FISCHER A.G. 19 Sept., 1968 [22 Sept., 1967], No. 44549/68. Heading B3N. An automatically reversible drive unit for a screw-cutting die which is to be rotated in two directions and which has a displaceable part which is adapted to be axially movable comprises a rotatable housing 1 for the die head, two selectively engageable driving shafts 4 and (5), Fig. 3 (not shown) adapted to drive the housing via a gear-wheel 3 and control means which in a first position connect a drive from a motor 13 through a first driving shaft 4 by means of a clutch 8, 8a to the housing and after a specific displacement of the displaceable part disconnect driving shaft 4 and connect the drive through a second driving shaft (5) by means of a second clutch (9, 9a) to the housing and after the displaceable part returns to its initial position disconnect the second driving shaft. The control means comprises an eccentric lever 22 which when rotated moves pins 31 and 29 to the right. Pin 31 is connected to a fork 32, the movement causes the fork to engage the clutch 8, 8a and thus drive to the housing 1. The pin 31 is retained in this position by a spring loaded plunger (34), Fig. 2 (not shown), engaging in a recess 33. As the die head rotates the displaceable part moves a holding part 18 to the right causing a pin (20), Fig. 5 (not shown), to engage and lock pin 29 in position. Lever 22 can now be returned to its initial position. After a specific displacement of part 18 a pin (41) causes pin 34 to disengage itself from pin 31 whence spring 36 urges the pin to the left thus disengaging the clutch 8, 8a and thus the drive to the housing 1. Pin 42 and lever 43 are operated by pin 31 to move fork 44 which engages the clutch (9, 9a) whereby the direction of rotation of the drive to the housing is reversed. When part 18 is then returned to its initial position it disengages pin 20 from pin 29 which is spring urged to the left thus disengaging the clutch (9, 9a) and thus the drive to the housing. In case of incorrect manipulation of lever 22 a release knob (48) is provided which is adapted to disconnect pin 34 from pin 31 such that part 18 will be returned to its initial position. Specification 1,211,899 is referred to.
GB4454968A 1967-09-22 1968-09-19 Automatically reversible drive unit for a screwcutting die head Expired GB1211900A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH1331067A CH463924A (en) 1967-09-22 1967-09-22 Automatically reversible drive unit for a thread cutting head

Publications (1)

Publication Number Publication Date
GB1211900A true GB1211900A (en) 1970-11-11

Family

ID=4391304

Family Applications (1)

Application Number Title Priority Date Filing Date
GB4454968A Expired GB1211900A (en) 1967-09-22 1968-09-19 Automatically reversible drive unit for a screwcutting die head

Country Status (7)

Country Link
AT (1) AT283080B (en)
BE (1) BE721185A (en)
CH (1) CH463924A (en)
DE (1) DE1777119A1 (en)
ES (1) ES358784A1 (en)
FR (1) FR1580076A (en)
GB (1) GB1211900A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2432803A (en) * 2005-12-01 2007-06-06 Bosch Gmbh Robert Hand machine tool reversing unit

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2432803A (en) * 2005-12-01 2007-06-06 Bosch Gmbh Robert Hand machine tool reversing unit
GB2432803B (en) * 2005-12-01 2009-06-03 Bosch Gmbh Robert Hand machine tool reversing unit

Also Published As

Publication number Publication date
FR1580076A (en) 1969-08-29
ES358784A1 (en) 1970-06-01
CH463924A (en) 1968-10-15
BE721185A (en) 1969-03-03
DE1777119A1 (en) 1971-02-25
AT283080B (en) 1970-07-27

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Legal Events

Date Code Title Description
PS Patent sealed
PLNP Patent lapsed through nonpayment of renewal fees