GB773100A - Stroke varying device for mechanical presses and like machines - Google Patents
Stroke varying device for mechanical presses and like machinesInfo
- Publication number
- GB773100A GB773100A GB13346/55A GB1334655A GB773100A GB 773100 A GB773100 A GB 773100A GB 13346/55 A GB13346/55 A GB 13346/55A GB 1334655 A GB1334655 A GB 1334655A GB 773100 A GB773100 A GB 773100A
- Authority
- GB
- United Kingdom
- Prior art keywords
- sleeve
- boss
- rotatably
- plate
- ring
- 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
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B30—PRESSES
- B30B—PRESSES IN GENERAL
- B30B1/00—Presses, using a press ram, characterised by the features of the drive therefor, pressure being transmitted directly, or through simple thrust or tension members only, to the press ram or platen
- B30B1/26—Presses, using a press ram, characterised by the features of the drive therefor, pressure being transmitted directly, or through simple thrust or tension members only, to the press ram or platen by cams, eccentrics, or cranks
- B30B1/263—Presses, using a press ram, characterised by the features of the drive therefor, pressure being transmitted directly, or through simple thrust or tension members only, to the press ram or platen by cams, eccentrics, or cranks work stroke adjustment means
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Transmission Devices (AREA)
- Portable Nailing Machines And Staplers (AREA)
Abstract
773,100. Eccentrics. ETABLISSEMENTS GRIMAR. May 9, 1955 [Nov. 4, 1954], No. 13346/55. Class 122 (1). [Also in Group XXIV] In a variable-throw crank mechanism, particularly for presses, of the type wherein the connecting-rod B embraces an eccentricallybored sleeve 2 which is rotatably adjustable on an eccentric boss la of a driving-shaft 1, the sleeve 2 is locked to the boss la by teeth 3, which are disengaged by sliding the sleeve 2 axially, the sleeve 2 being coupled to a sleeve 12 extending through one of the shaft bearings P1 and actuated at its outer end so that the eccentric sleeve 2 may be axially disengaged, rotatably adjusted and subsequently re-engaged without having direct access thereto. The boss 1a is of " cylindro-conical " shape. A ring 5 attached to the sleeve 2 limits its axial movement to the left. The sleeves 2, 12 are rotatably coupled by a pin 9 engaging a slot in a plate 7 integral with the sleeve 12, the plate 7 being held between the sleeve 2 and a plate 10 attached thereto. The outer end of the sleeve 12 may be actuated by any means but as shown has an inturned shoulder held between a collar and a ring on a bush 13 which is threaded on the shaft 1 so that the sleeves 2, 12 are axially moved to disengage the teeth 3 by rotating the bush 13 by a key 17. The sleeve 2 is then rotatably adjusted by a key 20 inserted in a ring attached to the sleeve 12. A scale 21 on the ring indicates, against a fixed pointer 22, the selected length of stroke. Stops may be provided to hold the connecting-rod B in place during axial movement of the sleeve 2. In a modification dispensing with the teeth 3 the end faces of the sleeve 2 and boss 1a have corresponding radial slots which are coupled by projections extending from a plate on the sleeve 12, the slots in the sleeve 2 being deeper than those in the boss la so that the sleeve 12 may be axially disengaged from the boss 1a and then turned to rotatably adjust the sleeve 2.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR773100X | 1954-11-04 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB773100A true GB773100A (en) | 1957-04-24 |
Family
ID=9196516
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB13346/55A Expired GB773100A (en) | 1954-11-04 | 1955-05-09 | Stroke varying device for mechanical presses and like machines |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB773100A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103331933A (en) * | 2013-06-13 | 2013-10-02 | 西安交通大学 | Automatic travel regulating device for pressing machine |
-
1955
- 1955-05-09 GB GB13346/55A patent/GB773100A/en not_active Expired
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103331933A (en) * | 2013-06-13 | 2013-10-02 | 西安交通大学 | Automatic travel regulating device for pressing machine |
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