EP0452434A1 - Klemmzange für kettentransporteure. - Google Patents
Klemmzange für kettentransporteure.Info
- Publication number
- EP0452434A1 EP0452434A1 EP90914891A EP90914891A EP0452434A1 EP 0452434 A1 EP0452434 A1 EP 0452434A1 EP 90914891 A EP90914891 A EP 90914891A EP 90914891 A EP90914891 A EP 90914891A EP 0452434 A1 EP0452434 A1 EP 0452434A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- lever
- jaw
- housing
- shaft
- clamping
- 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
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
- B65H29/00—Delivering or advancing articles from machines; Advancing articles to or into piles
- B65H29/003—Delivering or advancing articles from machines; Advancing articles to or into piles by grippers
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
- B65H2402/00—Constructional details of the handling apparatus
- B65H2402/50—Machine elements
- B65H2402/54—Springs, e.g. helical or leaf springs
Definitions
- the present invention relates to a pliers for chain conveyors according to the preamble of claim 1.
- a device of this type is known for example from CH-PS 644 816.
- the movable clamping jaw is held in its closed position by means of a ratchet coupling.
- a ratchet wheel is connected in a rotationally fixed manner to the movable clamping jaw.
- a spring-loaded pawl that swivels in the housing engages in the ratchet wheel in the latched position.
- the disadvantage of this device is its complicated structure and the fact that two different levers have to be actuated for opening and closing the clamping pliers.
- a corresponding device in accordance with EP-OS 241 631, in which a helical spring lock is provided instead of a jack coupling, is no less complex with regard to construction and operation.
- the present invention has for its object to provide a clamp for chain transporters of the type mentioned, in which the locking of the movable jaw - in its closed position and its opening is carried out by a simple mechanism without additional springs, actuating levers and other complicated parts.
- clamping pliers according to the invention have the advantage that the closing force of the resilient force transmission element connecting the lever to the movable clamping jaw after the dead center of the pivoting lever has been overcome, the lever in its closed position of the movable one
- Clamping jaw holds the appropriate end position.
- a dead center mechanism for the lever requires only a few simple elements, for example a separate shaft for the lever and a knee joint or a locking curve in connection with the lever.
- FIG. 1 shows a plan view of a first embodiment of the clamping tongs according to the invention with a knee joint, the clamping tongs being shown in their closed position;
- Fig. 2 is a side view, partially in section, the
- Fig. 3 is a side view, partly in section, the
- FIG. 4 shows a plan view, partly in section, of a second embodiment of the clamping tongs according to the invention with a locking curve, the clamping tongs being shown in their closed position;
- FIG. 5 shows a side view of the clamping pliers of FIG. 4, but in its open position according to FIGS. 4 and
- FIG. 6 shows a side view of the clamping pliers of FIG. 4 in their closed position according to FIG. 1.
- the clamping pliers shown have a substantially rectangular, box-shaped and upwardly open housing 1 made of a plastic.
- the clamping pliers have a clamping jaw 4 fastened to the housing base 2 with screws 3, a pivotably movable clamping jaw 5 and an actuating lever 6.
- the plate-shaped jaws 4 and 5 are shown interrupted in Fig. 1 for clarity.
- the screws 3 can at the same time also serve to fasten the clamping pliers on a chain conveyor (not shown).
- the lever 6 is provided with a roller 7 for its actuation by an external organ.
- the lever 6 is pivotally mounted on a shaft 8 arranged in the housing 1, specifically in a corner cutout 9 of the housing 1 (FIG. 1).
- the lever 6 is formed with two arms and has on its lever arm 10 opposite the roller 7 a shoulder 11 which comes to rest on the inside of the base 2 in the closed position of the clamping pliers (FIG. 3) and thus the pivoting movement of the Lever 6 limited around the shaft 8 in one pivoting direction.
- the lever arm 10 is provided with a lug 12 having a bore.
- a bearing pin 13 is also arranged parallel to the shaft 8.
- the bearing pin 13 carries a first, on this rotatable sleeve part 14 and, axially separated from the sleeve part 14, a second, on the bearing pin 13 rotatable sleeve part 15.
- the two independently rotatable sleeve parts 14 and 15 are by a coaxial coil spring 16 (Fig. 1st ) connected to each other, the helical spring 16 being inserted at one end 17 into a nose 18 of the second sleeve part 15 and at its other end 19 (FIG. 1) into the first sleeve part 14.
- a second coaxial coil spring 20 is arranged as a return spring, which is inserted at one end 21 into a side wall 22 of the housing 1 and at its other end 23 into a nose 24 of the first sleeve part 14.
- the movable clamping jaw 5 is firmly anchored to a projection 25 of the first sleeve part 14 (FIGS. 2, 3) by means of screws 26 (FIG. 2). It is thus on the bearing pin 13 against the force of the helical spring 20 from the open position according to FIG. 2 to the closed position according to FIG.
- Fig. 3 pivotable.
- the open position of the jaw 5 is limited in that the jaw 5 comes to rest on an upper housing edge 27 (FIGS. 2, 3).
- the lever 6 is with the second sleeve part 15 via a
- the nose 12 of the lever arm 10 is rotatably mounted in a slot 29 of the tab 28 by means of a bolt 30.
- the other end of the tab 28 is supported in a slot 31 in the nose 18 of the second sleeve part 15 by means of the end 17 of the helical spring 16.
- a rotary movement of the lever 6 thus causes a rotation of the second sleeve part 15 or a rotary movement of the helical spring 16 via the tab 28.
- the return spring 20 acts from the first sleeve part 14 via the first coil spring 16 and via the tab 28 also on the lever 6 and holds it in the position shown in FIG. 2.
- the coil spring 16 is to be regarded as a quasi-rigid connection between the first sleeve part 14 and the lever 6.
- the movable jaw 5 encounters a substantially fixed obstacle during its pivoting movement, which, according to FIG. 3, either the fixed jaw 4 or an object lying between the fixed and the movable jaw 4 or 5, for example a folded object
- the lever 6 is pivoted in a simple manner in the opposite direction to the arrow 32, the helical spring 16 first opening the movable clamping jaw 5 and pressing the lever 6 downward and including the return spring 20 for a complete opening the pivoting of the lever 6 in its position according to FIG. 2.
- FIGS. 4 to 6 The further embodiment of the clamping pliers according to the invention shown in FIGS. 4 to 6 makes use of another dead center mechanism, namely a locking curve instead of a knee joint.
- the clamping pliers in turn have an approximately rectangular, box-shaped housing 41 with a housing base 42, to which a clamping jaw 44, shown broken off in FIG. 4, is fastened by means of screws 43.
- a pivotably movable jaw 45 the design and arrangement of which will be explained in the following, is designed in the form of a wire. det.
- the clamping pliers again have a lever 46 for their actuation, which is provided with a roller 47.
- the lever 46 is connected to a first shaft 48 which is rotatably mounted in the housing 41 and which is subjected to the force of a coaxial restoring spring 49 which is supported on the housing base 42 and which thus shows the lever 46 in the position shown in FIG. 5 Position presses against a housing stop 50.
- a second shaft 51 which is designed as a hollow shaft and, like the housing 41, is made of plastic, is rotatably mounted.
- the shaft 51 is provided in the interior of the housing 41 with a longitudinal slot 52.
- the shaft 51 projects beyond it and is provided with an integrally formed lever arm 53.
- the lever arm 53 has a straight longitudinal groove 54 which is open at the radially outer end and has a sharp-angled bend 55 in its radially outer end region and a curvature 56 on the other side (FIGS. 5, 6).
- the lever 46 is provided on its side opposite the groove 54 with a roller 57 which is guided in the groove 54. A pivoting movement of the lever 46 thus causes the shaft 51 to rotate.
- the wire-shaped, movable clamping jaw 45 is wound inside the housing 41 with its two side parts 58 and 59 around the shaft 51 and with its ends 60 and 61 in the slot 52 of the shaft 51 inserted.
- the winding sections of the movable clamping jaw 45 thus each form a helical spring 62 or 63, which connect the clamping jaw 45 to the lever 46 via the shaft 51 and the lever arm 53.
- the operation of the clamping pliers shown is explained as follows with reference to FIGS. 5, 6. 5, the return spring 49 presses the lever 46 against the housing stop 50.
- the jaw 45 is held in the open position shown via the roller 57, the groove 54 of the lever arm 53 and the shaft 51 because there is no a resistance of the jaw 45, the helical springs 62, 63 form a quasi-rigid connection of the lever 46 to the jaw 45.
- An obstacle namely the fixed jaw 44 or an object such as a newspaper or the like, which is not shown in FIGS. 5 and 6 and is located between the two jaws 44, 45, becomes when the lever 46 is pivoted further the two in the direction of arrow 64
- Coil springs 62 and 63 tensioned.
- the clamping jaw 45 exerts a corresponding clamping force on the one hand, while on the other hand the same force tends to reset the lever 46.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Gripping Jigs, Holding Jigs, And Positioning Jigs (AREA)
- Feeding Of Articles By Means Other Than Belts Or Rollers (AREA)
- Discharge By Other Means (AREA)
- Manipulator (AREA)
- Packaging Of Special Articles (AREA)
- Clamps And Clips (AREA)
- Forklifts And Lifting Vehicles (AREA)
Description
Claims
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CH402389 | 1989-11-08 | ||
CH4023/89 | 1989-11-08 | ||
PCT/CH1990/000247 WO1991007342A1 (de) | 1989-11-08 | 1990-10-22 | Klemmzange für kettentransporteure |
Publications (2)
Publication Number | Publication Date |
---|---|
EP0452434A1 true EP0452434A1 (de) | 1991-10-23 |
EP0452434B1 EP0452434B1 (de) | 1994-07-20 |
Family
ID=4268376
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP90914891A Expired - Lifetime EP0452434B1 (de) | 1989-11-08 | 1990-10-22 | Klemmzange für kettentransporteure |
Country Status (6)
Country | Link |
---|---|
US (1) | US5178262A (de) |
EP (1) | EP0452434B1 (de) |
JP (1) | JPH04502608A (de) |
AT (1) | ATE108746T1 (de) |
DE (1) | DE59006518D1 (de) |
WO (1) | WO1991007342A1 (de) |
Families Citing this family (15)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
RU2053184C1 (ru) * | 1990-08-06 | 1996-01-27 | Радуцкий Григорий Аврамович | Устройство для вывода газетной продукции из фальцаппарата рулонной ротационной машины |
SE469890B (sv) * | 1992-03-16 | 1993-10-04 | Wamag Idab Ab | Griparetransportör med permanent förspänd gripare |
SE469889B (sv) * | 1992-03-16 | 1993-10-04 | Wamag Idab Ab | Griparetransportör med permanent förspänd klämback |
ATE127425T1 (de) * | 1992-12-01 | 1995-09-15 | Frisco Findus Ag | Greifvorrichtung. |
EP0600183B1 (de) * | 1992-12-02 | 1997-05-21 | Ferag AG | Greifer für eine Fördereinrichtung zum Fördern von ein- oder mehrblättrigen Druckereierzeugnissen |
WO1995000429A1 (de) * | 1993-06-17 | 1995-01-05 | Gämmerler Maschinenbau Und Anlagentechnik Gmbh | Zeitungsfördervorrichtung |
US5810347A (en) * | 1994-11-21 | 1998-09-22 | Heidelberger Druckmaschinen Ag | Apparatus for gripping and conveying sheet-like products |
DE19642117A1 (de) * | 1996-10-12 | 1998-04-16 | Koenig & Bauer Albert Ag | Klemmzange für Endlosförderer |
US6336310B1 (en) * | 1998-09-08 | 2002-01-08 | Sanford Redmond | Method and apparatus for making compact packages for speadable product |
US6227588B1 (en) * | 1999-02-17 | 2001-05-08 | Heidelberger Druckmaschinen Aktiengesellschaft | Gripper assembly |
US6357741B1 (en) * | 2000-01-20 | 2002-03-19 | Heidelberger Druckmaschinen Ag | Velocity adjustable grippers on sliding carriage |
US6925784B2 (en) * | 2003-09-11 | 2005-08-09 | The Procter & Gamble Company | Flexible manufacturing system for consumer packaged products |
US7690635B2 (en) * | 2007-12-24 | 2010-04-06 | Pitney Bowes Inc. | Cam driven insert gripper |
EP2840049B1 (de) * | 2013-08-20 | 2017-05-10 | Harro Höfliger Verpackungsmaschinen GmbH | Vorrichtung zum Transportieren eines Prospekts |
CN111936692A (zh) * | 2018-01-01 | 2020-11-13 | 弗迪梅特有限公司 | 折叠机物品夹,物品夹组件和折叠机衣物馈送方法 |
Family Cites Families (12)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB803027A (en) * | 1956-03-12 | 1958-10-15 | Roland Offsetmaschf | Improvements in or relating to sheet conveying mechanism of printing machines |
US2940750A (en) * | 1957-11-26 | 1960-06-14 | Mestre Luis | Collating machine |
FR2214292A5 (de) * | 1973-01-16 | 1974-08-09 | Ctre Etud Tech Ind Habillement | |
CH590778A5 (de) * | 1975-10-08 | 1977-08-31 | Ferag Ag | |
CH618398A5 (de) * | 1977-06-06 | 1980-07-31 | Ferag Ag | |
US4167996A (en) * | 1978-03-27 | 1979-09-18 | General Motors Corporation | Suspension type clamping transport hook |
CH644816A5 (de) * | 1980-02-08 | 1984-08-31 | Ferag Ag | Foerdereinrichtung, inbesondere fuer druckprodukte, mit an einem umlaufenden zugorgan verankerten greifzangen. |
US4681213A (en) * | 1985-10-23 | 1987-07-21 | Harris Graphics Corporation | Gripper assembly |
US4746007A (en) * | 1986-02-20 | 1988-05-24 | Quipp Incorporated | Single gripper conveyor system |
US4921294A (en) * | 1988-06-03 | 1990-05-01 | Am International Incorporated | Spring wire gripper jaw |
CH677652A5 (de) * | 1989-03-07 | 1991-06-14 | Grapha Holding Ag | |
US4968081A (en) * | 1989-03-13 | 1990-11-06 | Hall Processing Systems | Non-contact actuator |
-
1990
- 1990-10-22 US US07/720,772 patent/US5178262A/en not_active Expired - Lifetime
- 1990-10-22 AT AT90914891T patent/ATE108746T1/de not_active IP Right Cessation
- 1990-10-22 JP JP2513864A patent/JPH04502608A/ja active Pending
- 1990-10-22 EP EP90914891A patent/EP0452434B1/de not_active Expired - Lifetime
- 1990-10-22 DE DE59006518T patent/DE59006518D1/de not_active Expired - Lifetime
- 1990-10-22 WO PCT/CH1990/000247 patent/WO1991007342A1/de active IP Right Grant
Non-Patent Citations (1)
Title |
---|
See references of WO9107342A1 * |
Also Published As
Publication number | Publication date |
---|---|
EP0452434B1 (de) | 1994-07-20 |
US5178262A (en) | 1993-01-12 |
ATE108746T1 (de) | 1994-08-15 |
DE59006518D1 (de) | 1994-08-25 |
JPH04502608A (ja) | 1992-05-14 |
WO1991007342A1 (de) | 1991-05-30 |
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Legal Events
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