EP0993413A1 - Clamp for holding sheet-like objects - Google Patents

Clamp for holding sheet-like objects

Info

Publication number
EP0993413A1
EP0993413A1 EP98916772A EP98916772A EP0993413A1 EP 0993413 A1 EP0993413 A1 EP 0993413A1 EP 98916772 A EP98916772 A EP 98916772A EP 98916772 A EP98916772 A EP 98916772A EP 0993413 A1 EP0993413 A1 EP 0993413A1
Authority
EP
European Patent Office
Prior art keywords
clamping
tongue
clamp
jaw
clamping jaw
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
EP98916772A
Other languages
German (de)
French (fr)
Other versions
EP0993413B1 (en
Inventor
Jacques Meier
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.)
Ferag AG
Original Assignee
Ferag 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 Ferag AG filed Critical Ferag AG
Publication of EP0993413A1 publication Critical patent/EP0993413A1/en
Application granted granted Critical
Publication of EP0993413B1 publication Critical patent/EP0993413B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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
    • B65H2405/00—Parts for holding the handled material
    • B65H2405/50—Gripping means
    • B65H2405/58—Means for achieving gripping/releasing operation

Definitions

  • the present invention relates to a clamp for holding flat objects according to the preamble of claim 1.
  • a generic clamp designed in the manner of pliers is disclosed in Swiss Patent No. 569 197 and in the corresponding US Pat. No. 3,948,551. It has a clamping tongue fixedly arranged on a holding part.
  • a clamping jaw can be pivoted about an axis running at right angles to the clamping tongue from an open position into a clamping position in which it forms a clamping gap with the clamping tongue.
  • the clamping tongue and the clamping jaw can be moved relative to one another in the extension of the clamping gap away from one another in the open position and against one another in their clamping position. This makes it necessary for the clamp to be turned 90 ° out of or into the area defined by the object when opening and closing.
  • this known clamp has particular advantages. It is self-locking and self-holding, it is practically not bulky compared to the thickness of the flat objects and accordingly finds space both in scale formations of the objects and in the buffering or stacking of the objects - with practically the same space requirement. In addition, it has such a low weight that it - if necessary - can be carried and held by the object itself.
  • the clamp according to the invention it is no longer necessary to turn the clamp according to the invention when opening and closing. It is simple in construction, cheap to manufacture and extremely easy to use. In addition, the clamping jaw is held in the clamping position by self-locking; Locking elements are not necessary.
  • the slim design of the clamp allows the objects held by the clamp to be buffered in the smallest space, while maintaining the individualization of the objects; i.e. each item is individually captured and can therefore be handled individually.
  • the terminal can also be opened if adjacent terminals are adjacent to one another in a buffer.
  • 1 is a view of a clamp according to the invention in the open position
  • FIG. 2 shows a side view of the clamp shown in FIG. 1 in the closed position
  • FIG. 3 in a section along the line III-III of Figure 1, the clamp shown there in the open position.
  • FIGS. 1 to 3 shows a side view of part of a device with a plurality of clamps arranged one behind the other according to FIGS. 1 to 3, each of the clamps being supplied with a printed product;
  • FIG. 5 shows, in the same representation as in FIG. 4, the part of the device shown there with a clamp during the closing process
  • Fig. 6 in the same representation as in Figure 5, the clamp shown there in the clamping position for holding the printed product.
  • FIGS. 4 to 6 shows a further part of the device shown in FIGS. 4 to 6 with a clamp holding a printed product at the beginning of the opening process;
  • FIG. 8 shows the part of the device shown in FIG. 7 with a partially opened clamp
  • FIG. 9 in the same representation as in Figures 7 and 8, the terminal shown there in the open position. 10 shows a further part of the device shown in FIGS. 4 to 9, with a plurality of clamps arranged one behind the other, each holding a printed product and abutting one another for buffering;
  • Fig. 11 in view and partly in section along the line XI-XI of Fig. 12, a drive device for the clamps;
  • FIG. 12 is a top view of the drive device shown in FIG. 11.
  • the clamp 10 shown in FIGS. 1 to 3 has an essentially cuboid supporting part 12. Seen in the longitudinal direction of the support part 12, guide lugs 14 are formed on its two ends, which are intended to engage in guide rails 16 which are C-shaped in cross section and open to one another. The clamp 10 is thereby slidably displaceable in the guide rails 16.
  • a flat, essentially rectangular clamping tongue 20 bears on a side surface 18 of the supporting part 12 and is fastened to the supporting part 12 by means of suitable fastening means 22, for example screws or rivets.
  • the side surface 18 lies in a plane running at right angles to the longitudinal direction of the guide rails 16, so that the clamping tongue 20 projects over the guide rails 16 in a cantilever manner and over the support part 12. 2 and 3, the clamping tongue 20 is bent around a bending line 24 running parallel to the longitudinal direction of the support part 12, so that the free end 20 'of the clamping tongue 20 is approximately in one plane lies, which is defined by the opposite surface of the side surface 18 of the cross-sectionally shaped support member 12.
  • the clamping tongue 20 has a triangular passage 26 in its part projecting above the supporting part 12 to save weight. Adjacent to its free end 20 ′, the clamping tongue 20 is provided with two adhesive covering strips 28 on the side lying radially inward with respect to the bend.
  • the support part 12 has a guide gap 30 which is penetrated by a flat, essentially rectangular, curved clamping jaw 32. This can be moved from an open position 34 shown in FIGS. 1 and 3 by shifting in the closing direction S into a clamping position 36 shown in FIG. 2.
  • the clamping jaw 32 is bent around an axis running parallel to the longitudinal direction of the supporting part 12 in the manner of a circular cylinder segment and is guided on the supporting part 12 in such a way that the clamping tongue 20 is located on the radially inner side of the clamping jaw 32.
  • the guide gap 30 is shaped in accordance with the curvature of the clamping jaw 32.
  • the clamping jaw 32 From its free end 32 ′ facing the clamping tongue 20, the clamping jaw 32 is provided with an approximately triangular cut 38, whereby two clamping legs 40 of the clamping jaw 32 are formed, which at their end region adjoining the free end 32 ′ form a clamping foot 42 are cranked against the bend of the jaw 32.
  • the clamping feet 42 In the clamping position 36, the clamping feet 42 form a clamping gap 44 with the clamping tongue 20.
  • the clamping jaw 32 In the open position 34, the clamping jaw 32 is in a position in which the clamping feet 42 are located on the supporting part 12.
  • the clamping feet 42 move along a circular movement path 46 which cuts the clamping tongue 20 at an acute angle a.
  • the movement path 46 is a circular path, the center of which lies in the axis of the bend of the clamping jaw 32 and the radius of which corresponds to the distance from the axis to the clamping jaw 32.
  • the angle ⁇ is approximately 30 °. But it can also be smaller or larger; however, it is preferably less than 45 °.
  • the clamping feet 42 move along their path of movement 46 until they come to rest on the adhesive covering strip 28 or on a flat object lying against the clamping tongue 20.
  • the clamping feet 42 slide along the outside of the flat product or the adhesive covering strip 28 facing it, towards the free end 20 'of the clamping tongue 20, whereby the clamping feet 42 move out of the path 46, which they would otherwise follow. be deflected.
  • the clamping jaw 32 is made of self-resilient material, for example of spring steel sheet and is inevitably guided in the guide gap 30 transversely to the latter, the clamping feet 42 are thereby elastically pushed back, whereby a clamping force K is generated, which the flat object on the clamping tongue 20 and in particular the Adhesive covering strip 28 presses on.
  • a clamping force K is generated, which the flat object on the clamping tongue 20 and in particular the Adhesive covering strip 28 presses on.
  • the acute angle ⁇ no or only a small force component can act on the clamping jaw 32 against the closing direction S. This force component is caused by the frictional force in the guide gap 30 without teres added, so that the clamp 10 is self-holding in the clamping position 36.
  • the clamping jaw 32 is provided with lateral projections 50 and bent in a tube-like manner.
  • the projections 50 are intended to cooperate with an opening element in order to move the clamping jaw 32 from the clamping position 36 against the closing direction S into the open position 34.
  • the support part 12 consists of a support body 52 with a recess 54, into which a wedge body 56 is inserted, which engages behind the clamping tongue 20 with a retaining lug 58 and is held in the recess 54 in this way.
  • the support body 52 and the wedge body 56 delimit the guide gap 30.
  • FIG. 4 to 6 show part of an apparatus 60 for processing printed products 62 such as newspapers, magazines and the like.
  • a transfer section 64 is shown, in which printed products 62 fed from a belt conveyor 66 are taken over by means of clamps 10 for further transport.
  • the guide rails 16 run in the vertical direction and the clamps 10 which are arranged one behind the other and abut one another are continuously moved forward in a conveying direction F from below towards above. Seen in the direction of conveyance F, the clamping tongues 20 of the clamps 10 are trailing with respect to the clamping jaws 32.
  • the free end 20 'of the clamping tongues 20 faces the belt conveyor 66, which is intended to transport the printed products 62 in the feed direction Z in a scale formation, in which each printed product 62 rests on the trailing one.
  • a closing device 68 for the terminals 10 is arranged on the regarding tion rails 16 opposite the belt conveyor 66. It has an endless traction element 70 which is driven in the direction of arrow A at a speed v and which is greater than the speed v ⁇ at which the clamps 10 are moved.
  • Cams 72 which are intended to interact with the end 48 of a clamping jaw 32, are arranged one behind the other on the traction element 70.
  • the feed speed of the belt conveyor 66 and the speed Vf at which the clamps 10 are moved / are coordinated with one another such that a printed product 62 is fed to each clamp 10.
  • a clamping tongue 20 engages under the printed product 62 projecting over the end of the belt conveyor 66 and lifts it in the conveying direction F.
  • a cam 72 of the closing device 68 strikes the end 48 of the relevant clamping jaw 32 and moves it from the open position 34 in the closing direction S; this is due to the difference between the speed v of the cams 72 and the speed v ⁇ of the terminals 10.
  • FIG. 5 shows the point in time during the closing process of the clamp 10 at which the clamping foot 32 comes into contact with the printed product 62.
  • the printed product 62 does not yet lie flat against the clamping tongue 20, it can be pushed further into the clamping mouth in the feed direction Z until it is brought into contact with the adhesive covering strip 28 by the clamping foot 42.
  • the clamping leg 40 which is lengthening in the process, is tensioned in the manner of a spiral spring, as a result of which clamping force is built up with which the printed product 62 is held by the clamp 10 for further transport, as is shown in FIG. 6 is shown.
  • the adhesive effect of the adhesive covering strips 28 on the printed product 62 is greater than the sliding friction between the clamping feet 42 and the printed product 62. If necessary, the clamping foot 42 can be provided with a sliding coating. As can also be seen in FIG. 6, the clamps 10 are each in the closed position 36 when the end of the closing device 68 is reached.
  • FIGS. 7 to 9 show a further part, a delivery section 74, of the device 60 already mentioned in connection with FIGS. 4 to 6.
  • the guide rails 16 run in the horizontal direction and the clamps 10 are used to transport the printed products 62 directed towards the bottom in a hanging position.
  • the clamps 10 are moved in the conveying direction F.
  • the clamping jaws 32 When entering the dispensing section 74, the clamping jaws 32 are in the clamping position 36 and hold a printed product 62 in the clamping gap 44 formed by them and the relevant clamping tongue 20.
  • a wedge-shaped opening link 76 is arranged on the two guide rails 16.
  • FIG. 7 shows the point in time at which the projections 50 of a clamp 10 touch the opening link 76.
  • the jaw 32 is pulled up, whereby the clamping force K is reduced.
  • 8 shows the point in time at which the clamping foot 42 releases the printed product 62, so that it is handed down to the next processing station.
  • the clamping jaw 32 is then moved completely into the open position 34, as shown in FIG. 9.
  • the clamp 10 is ready to receive a printed product 62 again.
  • the friction conditions in the guide gap 30 are sufficient to hold the clamping jaw 32 in the open position 34.
  • the 10 shows a buffer section 78 of the device 60. This is located, for example, between the take-over section 64 shown in FIGS. 4 to 6 and the delivery section 74 shown in FIGS. 7 to 9.
  • the guide rails 16 likewise run horizontally Direction and the terminals 10, each equipped with a printed product 62, abut one another.
  • This figure shows in particular that the clamps 10, as seen in the longitudinal direction of the guide rails 16, are of very slim design, so that they hardly apply in relation to the thickness of the printed products 62 they hold. This enables a high packing density to be achieved in the buffer section.
  • a drive section 80 of the device 60 is shown in a view and a top view.
  • the bottom 82 of the guide rails 16 with a C-shaped cross section is removed.
  • the lateral legs 84 connected to one another in the remaining sections by the base 82 also extend continuously through the drive section 80 in order to close the clamps 10 to lead.
  • the support parts 12 of the clamps 10 engage with their guide lugs 14 in the guide rails 16 and their end faces 86 are intended to cooperate in the drive section 80 with driving bodies 88 of a drive device 90; a drive device 90 is assigned to each guide rail 16.
  • One of the symmetrically constructed and arranged drive devices 90 is described below.
  • a large number of driving bodies 88 are arranged on a self-contained chain 92 which is guided around two parallel-axis chain wheels 94 spaced apart in the direction of the guide rails 16.
  • One of these chain wheels 94 is driven in a rotating manner in the conveying direction F by means of a drive unit, not shown.
  • the conveying strand 96 of the chain 92 runs parallel to the relevant guide rail 16 and is arranged with respect to the latter in such a way that the corresponding entrainment bodies 88 engage between the legs 84 in the guide rail 16 and rest frictionally on the end faces 86 of the supporting parts 12 of the clamps 10.
  • a pressure and guide rail 98 arranged between the chain wheels 94 ensures that the pressure force is maintained.
  • the clamps 10 are freely movable outside the drive device 90 in the guide rails 16, so that they can be at a different distance from one another.
  • a drive section 80 can, for example, overlap with a take-over section 64 or a delivery section 74 in order to move the clamps 10 in the conveying direction F in these sections. It is also conceivable for the clamping jaws to be flat and for the clamping shoes 42 to be moved along a straight line of motion when the clamp is being closed and opened. In this case, too, the trajectory forms an acute angle with the clamping tongue.
  • terminals 10 and the device 60 can be designed differently.
  • Clamps according to the invention are suitable, for example, for use in devices such as are disclosed in WO patent applications PCT / CH97 / 00200 and PCT / CH97 / 00201.
  • Printed products 62 are mentioned in connection with the exemplary embodiment shown as an example of flexible, flat objects.
  • the clamps 10 according to the invention are also suitable for holding rigid, flat objects or different flexible flat objects.
  • the objects can have different thicknesses.
  • the clamping force K also increases with increasing thickness.
  • the clamping tongue can be designed to be inherently elastic and, for this purpose, can be made of spring steel sheet, for example. Finally, it would also be conceivable to design the clamping tongue to be elastic and the clamping jaw to be rigid.

Abstract

The invention relates to a clamp (10) for holding sheet-like objects, having a support (12) on which a clamp tongue (20) is fixed. A clamping jaw (32) is stored in a guide slot (30) in the support (12) in such a way that it can move both in and against the direction of closing (S). When the clamping jaw (32) moves from open position (34) in closing direction (S), the clamp end (42) is displaced along the path of movement (46), until it rests against the clamp tongue (20) or an adjacent object. As the clamping jaw (32) continues to move in closing direction (S), the clamp end is driven back from the path of movement (46), and a clamping force for holding the object is formed as a result of the elasticity of the clamping jaw (32).

Description

Klemme zum Halten von flächigen GegenständenClamp for holding flat objects
Die vorliegende Erfindung betrifft eine Klemme zum Halten von flächigen Gegenständen gemäss dem Oberbegriff des Anspruchs 1.The present invention relates to a clamp for holding flat objects according to the preamble of claim 1.
Eine in der Art einer Zange ausgebildete gattungsgemässe Klemme ist in der CH-Patentschrif Nr. 569 197 und in der entsprechenden US-Patentschrift Nr. 3,948,551 offenbart. Sie weist eine an einem Halteteil fest angeordnete Klemmzunge auf. Eine Klemmbacke ist um eine rechtwinklig zur Klemmzunge verlaufende Achse von einer Offenstellung in eine Klemmstellung verschwenkbar, in der sie mit der Klemmzunge einen Klemmspalt bildet. Die Klemmzunge und die Klemmbacke sind relativ zueinander in der Erstreckung des Klemmspaltes voneinander weg in die Offenstellung und gegeneinander in ihre Klemmstellung bewegbar. Dies macht es notwendig, dass die Klemme beim Öffnen und Schliessen um 90° aus der bzw. in die durch den Gegenstand definierte Fläche gedreht wird. Es ist somit das gleichzeitige Drehen der ganzen Klemme und das Bewegen der Klemmbacke relativ zur Klemmzunge notwendig, was neben dem Platzbedarf beim Erfassen und Freigeben eines Gegenstandes eine aufwendige Steuerung erfordert. Andererseits weist diese bekannte Klemme besondere Vorteile auf. Sie ist selbsthemmend und selbsthaltend, sie trägt gegenüber der Dicke der flächigen Gegenstände praktisch nicht auf und findet dementsprechend sowohl in Schuppenformationen der Gegenstände wie auch bei der Pufferung oder Stapelung der Gegenstände - bei praktisch gleichbleibendem Platzbedarf - Platz. Darüberhinaus besitzt sie noch ein so niedriges Gewicht, so dass sie - wenn dies nötig ist - vom Gegenstand selber getragen und gehalten werden kann.A generic clamp designed in the manner of pliers is disclosed in Swiss Patent No. 569 197 and in the corresponding US Pat. No. 3,948,551. It has a clamping tongue fixedly arranged on a holding part. A clamping jaw can be pivoted about an axis running at right angles to the clamping tongue from an open position into a clamping position in which it forms a clamping gap with the clamping tongue. The clamping tongue and the clamping jaw can be moved relative to one another in the extension of the clamping gap away from one another in the open position and against one another in their clamping position. This makes it necessary for the clamp to be turned 90 ° out of or into the area defined by the object when opening and closing. It is therefore necessary to simultaneously turn the entire clamp and move the clamping jaw relative to the clamping tongue, which, in addition to the space required when detecting and releasing an object, requires complex control. On the other hand, this known clamp has particular advantages. It is self-locking and self-holding, it is practically not bulky compared to the thickness of the flat objects and accordingly finds space both in scale formations of the objects and in the buffering or stacking of the objects - with practically the same space requirement. In addition, it has such a low weight that it - if necessary - can be carried and held by the object itself.
Es ist eine Aufgabe der vorliegenden Erfindung eine gattungsgemässe Klemme zu schaffen, die bei Beibehaltung der Vorteile der bekannten Klemme in der Handhabung einfacher ist.It is an object of the present invention to provide a clamp of the generic type which is easier to use while maintaining the advantages of the known clamp.
Diese Aufgabe wird mit einer gattungsgemässen Klemme gelöst, die die Merkmale im Kennzeichen des Anspruchs 1 aufweist .This object is achieved with a clamp of the generic type, which has the features in the characterizing part of claim 1.
Ein Drehen der erfindungsgemässen Klemme beim Öffnen und Schliessen ist nicht mehr notwendig. Sie ist einfach im Aufbau, billig in der Herstellung und äusserst einfach in der Handhabung. Überdies wird die Klemmbacke durch Selbsthemmung in der Klemmstellung gehalten; Verriegelungselemente sind nicht nötig. Der schlanke Aufbau der Klemme ermöglicht eine Pufferung der von der Klemme gehaltenen Gegenstände auf kleinstem Raum, unter Beibehaltung der Individualisierung der Gegenstände; d.h. jeder Gegenstand ist einzeln gefasst und somit individuell handhabbar. Weiter kann die Klemme geöffnet werden, wenn in einem Puffer benachbarte Klemmen aneinander anliegen.It is no longer necessary to turn the clamp according to the invention when opening and closing. It is simple in construction, cheap to manufacture and extremely easy to use. In addition, the clamping jaw is held in the clamping position by self-locking; Locking elements are not necessary. The slim design of the clamp allows the objects held by the clamp to be buffered in the smallest space, while maintaining the individualization of the objects; i.e. each item is individually captured and can therefore be handled individually. The terminal can also be opened if adjacent terminals are adjacent to one another in a buffer.
Bevorzugte Ausbildungsformen der erfindungsgemässen Klemme sind in den abhängigen Ansprüchen angegeben.Preferred embodiments of the clamp according to the invention are specified in the dependent claims.
Die Erfindung wird nun anhand eines in der Zeichnung dargestellten Ausführungsbeispiels näher erläutert. Es zeigen rein schematisch: Fig. 1 in Ansicht eine erfindungsgemässe Klemme in Offenstellung;The invention will now be explained in more detail with reference to an embodiment shown in the drawing. It shows purely schematically: 1 is a view of a clamp according to the invention in the open position;
Fig. 2 in Seitenansicht die in der Fig. 1 gezeigte Klemme in Schliessstellung;FIG. 2 shows a side view of the clamp shown in FIG. 1 in the closed position;
Fig. 3 in einem Schnitt entlang der Linie III-III der Fig. 1 die dort gezeigte Klemme in Offenstellung;Fig. 3 in a section along the line III-III of Figure 1, the clamp shown there in the open position.
Fig. 4 in Seitenansicht einen Teil einer Vorrichtung mit einer Vielzahl hintereinander angeordneter Klemmen gemäss den Fig. 1 bis 3, wobei jeder der Klemme ein Druckereiprodukt zugeführt wird;4 shows a side view of part of a device with a plurality of clamps arranged one behind the other according to FIGS. 1 to 3, each of the clamps being supplied with a printed product;
Fig. 5 in gleicher Darstellung wie in Fig. 4 den dort gezeigten Teil der Vorrichtung mit einer Klemme während des Schliessvorgangs;5 shows, in the same representation as in FIG. 4, the part of the device shown there with a clamp during the closing process;
Fig. 6 in gleicher Darstellung wie in Fig. 5 die dort gezeigte Klemme in Klemmstellung zum Halten des Druckereiprodukts ;Fig. 6 in the same representation as in Figure 5, the clamp shown there in the clamping position for holding the printed product.
Fig. 7 einen weiteren Teil der in den Fig. 4 bis 6 gezeigten Vorrichtung mit einer ein Druckerei- produkt haltenden Klemme zu Beginn des Öffnungs- vorgangs ;7 shows a further part of the device shown in FIGS. 4 to 6 with a clamp holding a printed product at the beginning of the opening process;
Fig. 8 den in Fig. 7 gezeigten Teil der Vorrichtung mit einer teilweise geöffneten Klemme;8 shows the part of the device shown in FIG. 7 with a partially opened clamp;
Fig. 9 in gleicher Darstellung wie in Fig. 7 und 8 die dort gezeigte Klemme in Offenstellung; Fig. 10 einen weiteren Teil der in den Fig. 4 bis 9 gezeigten Vorrichtung, mit einer Vielzahl hintereinander angeordneter Klemmen, die je ein Druckereiprodukt halten und zur Pufferung aneinander anliegen;Fig. 9 in the same representation as in Figures 7 and 8, the terminal shown there in the open position. 10 shows a further part of the device shown in FIGS. 4 to 9, with a plurality of clamps arranged one behind the other, each holding a printed product and abutting one another for buffering;
Fig. 11 in Ansicht und teilweise geschnitten entlang der Linie XI-XI der Fig. 12 eine Antriebsvorrichtung für die Klemmen; undFig. 11 in view and partly in section along the line XI-XI of Fig. 12, a drive device for the clamps; and
Fig. 12 in Draufsicht die in der Fig. 11 gezeigte Antriebsvorrichtung .FIG. 12 is a top view of the drive device shown in FIG. 11.
Die in den Fig. 1 bis 3 gezeigte Klemme 10 weist einen im wesentlichen quaderförmigen Tragteil 12 auf. In Längsrichtung des Tragteils 12 gesehen, sind an dessen beiden Enden Führungsnasen 14 angeformt, die dazu bestimmt sind, in im Querschnitt C-förmige, gegeneinander offene Führungsschienen 16 einzugreifen. Die Klemme 10 ist dadurch gleitend in den Führungsschienen 16 verschiebbar.The clamp 10 shown in FIGS. 1 to 3 has an essentially cuboid supporting part 12. Seen in the longitudinal direction of the support part 12, guide lugs 14 are formed on its two ends, which are intended to engage in guide rails 16 which are C-shaped in cross section and open to one another. The clamp 10 is thereby slidably displaceable in the guide rails 16.
An einer Seitenfläche 18 des Tragteils 12 liegt eine flächige, im wesentlichen rechteckige Klemmzunge 20 an, die mittels geeigneten Befestigungsmitteln 22, beispielsweise Schrauben oder Nieten, am Tragteil 12 befestigt ist. Die Seitenfläche 18 liegt in einer rechtwinklig zur Längsrichtung der Führungsschienen 16 verlaufenden Ebene, so dass die Klemmzunge 20 quer zu den Führungsschienen 16 auslegerartig über diese und den Tragteil 12 vorsteht. Wie dies insbesondere die Fig. 2 und 3 zeigen, ist die Klemmzunge 20 um eine zur Längsrichtung des Tragteils 12 parallel verlaufende Biegelinie 24 gebogen, so dass das freie Ende 20' der Klemmzunge 20 ungefähr in einer Ebene liegt, die durch die der Seitenfläche 18 gegenüberliegende Fläche des im Querschnitt rechteckförmigen Tragteils 12 definiert ist. Weiter weist die Klemmzunge 20 in ihrem über den Tragteil 12 vorstehenden Teil zur Gewichtsersparnis einen dreieckförmigen Durchlass 26 auf. Angrenzend an ihr freies Ende 20' ist die Klemmzunge 20 auf der bezüglich der Biegung gesehen radial innenliegenden Seite mit zwei Haftbelagsstreifen 28 versehen.A flat, essentially rectangular clamping tongue 20 bears on a side surface 18 of the supporting part 12 and is fastened to the supporting part 12 by means of suitable fastening means 22, for example screws or rivets. The side surface 18 lies in a plane running at right angles to the longitudinal direction of the guide rails 16, so that the clamping tongue 20 projects over the guide rails 16 in a cantilever manner and over the support part 12. 2 and 3, the clamping tongue 20 is bent around a bending line 24 running parallel to the longitudinal direction of the support part 12, so that the free end 20 'of the clamping tongue 20 is approximately in one plane lies, which is defined by the opposite surface of the side surface 18 of the cross-sectionally shaped support member 12. Furthermore, the clamping tongue 20 has a triangular passage 26 in its part projecting above the supporting part 12 to save weight. Adjacent to its free end 20 ′, the clamping tongue 20 is provided with two adhesive covering strips 28 on the side lying radially inward with respect to the bend.
Der Tragteil 12 weist einen Führungsspalt 30 auf, der von einer flächigen, im wesentlichen rechteckförmigen, gebogenen Klemmbacke 32 durchgriffen ist. Diese ist von einer in den Fig. 1 und 3 gezeigten Offenstellung 34 durch Verschieben in Schliessrichtung S in eine in der Fig. 2 gezeigte Klemmstellung 36 bewegbar.The support part 12 has a guide gap 30 which is penetrated by a flat, essentially rectangular, curved clamping jaw 32. This can be moved from an open position 34 shown in FIGS. 1 and 3 by shifting in the closing direction S into a clamping position 36 shown in FIG. 2.
Die Klemmbacke 32 ist um eine parallel zur Längsrichtung des Tragteils 12 verlaufende Achse in der Art eines Kreiszylindersegments gebogen und derart am Tragteil 12 geführt, dass die Klemmzunge 20 auf der radial innenliegenden Seite der Klemmbacke 32 sich befindet. Der Führungsspalt 30 ist entsprechend der Krümmung der Klemmbacke 32 geformt .The clamping jaw 32 is bent around an axis running parallel to the longitudinal direction of the supporting part 12 in the manner of a circular cylinder segment and is guided on the supporting part 12 in such a way that the clamping tongue 20 is located on the radially inner side of the clamping jaw 32. The guide gap 30 is shaped in accordance with the curvature of the clamping jaw 32.
Von ihrem, der Klemmzunge 20 zugewandten freien Ende 32' her, ist die Klemmbacke 32 mit einem etwa dreieckförmigen Einschnitt 38 versehen, wodurch zwei Klemmschenkel 40 der Klemmbacke 32 gebildet werden, die an ihrem an das freie Ende 32' angrenzenden Endbereich zu einem Klemmfuss 42 entgegen der Biegung der Klemmbacke 32 gekröpft sind. In Klemmstellung 36 bilden die Klemmfüsse 42 mit der Klemmzunge 20 einen Klemmspalt 44. In Offenstellung 34 befindet sich die Klemmbacke 32 in einer Position, in welcher die Klemmfüsse 42 sich beim Tragteil 12 befinden. Beim Bewegen der Klemmbacke 32 aus der Offenstellung 34 in Schliessrichtung S bewegen sich die Klemmfüsse 42 entlang einer kreisförmigen Bewegungsbahn 46, die die Klemmzunge 20 in einem spitzen Winkel a schneidet. Die Bewegungsbahn 46 ist eine Kreisbahn, deren Zentrum in der Achse der Biegung der Klemmbacke 32 liegt und deren Radius dem Abstand von der Achse zur Klemmbacke 32 entspricht. Der Winkel α beträgt im gezeigten Ausführungsbeispiel ungefähr 30°. Er kann aber auch kleiner oder grösser sein; vorzugsweise ist er aber kleiner als 45° .From its free end 32 ′ facing the clamping tongue 20, the clamping jaw 32 is provided with an approximately triangular cut 38, whereby two clamping legs 40 of the clamping jaw 32 are formed, which at their end region adjoining the free end 32 ′ form a clamping foot 42 are cranked against the bend of the jaw 32. In the clamping position 36, the clamping feet 42 form a clamping gap 44 with the clamping tongue 20. In the open position 34, the clamping jaw 32 is in a position in which the clamping feet 42 are located on the supporting part 12. When the clamping jaw 32 is moved from the open position 34 in the closing direction S, the clamping feet 42 move along a circular movement path 46 which cuts the clamping tongue 20 at an acute angle a. The movement path 46 is a circular path, the center of which lies in the axis of the bend of the clamping jaw 32 and the radius of which corresponds to the distance from the axis to the clamping jaw 32. In the exemplary embodiment shown, the angle α is approximately 30 °. But it can also be smaller or larger; however, it is preferably less than 45 °.
Beim Schliessen der Klemme 10 in Schliessrichtung S bewegen sich die Klemmfüsse 42 entlang ihrer Bewegungsbahn 46, bis sie am Haftbelagsstreifen 28 bzw. an einen an der Klemmzunge 20 anliegenden, flächigen Gegenstand zur Anlage kommt. Beim Weiterbewegen in Pfeilrichtung S gleiten die Klemmfüsse 42 entlang der ihm zugewandten Aussenseite des flächigen Erzeugnisses bzw. dem Haftbelagsstreifen 28 in Richtung zum freien Ende 20' der Klemmzunge 20 hin, wodurch die Klemmfüsse 42 aus der Bewegungsbahn 46, der sie sonst weiter folgen würden, ausgelenkt werden. Da die Klemmbacke 32 aus selbstfederndem Material, beispielsweise aus Federstahlblech, hergestellt und im Führungsspalt 30 quer zu diesem unausweichbar geführt ist, werden dadurch die Klemmfüsse 42 elastisch zurückgedrängt, wodurch eine Klemmkraft K erzeugt wird, die den flächigen Gegenstand an der Klemmzunge 20 und insbesondere die Haftbelagsstreifen 28 andrückt. Infolge des spitzen Winkels α kann keine oder nur eine kleine Kraftkomponente entgegen der Schliessrichtung S auf die Klemmbacke 32 wirken. Diese Kraftkomponente wird durch die Reibungskraft im Führungsspalt 30 ohne wei- teres aufgenommen, so dass die Klemme 10 in Klemmstellung 36 selbsthaltend ist.When the clamp 10 is closed in the closing direction S, the clamping feet 42 move along their path of movement 46 until they come to rest on the adhesive covering strip 28 or on a flat object lying against the clamping tongue 20. When moving further in the direction of arrow S, the clamping feet 42 slide along the outside of the flat product or the adhesive covering strip 28 facing it, towards the free end 20 'of the clamping tongue 20, whereby the clamping feet 42 move out of the path 46, which they would otherwise follow. be deflected. Since the clamping jaw 32 is made of self-resilient material, for example of spring steel sheet and is inevitably guided in the guide gap 30 transversely to the latter, the clamping feet 42 are thereby elastically pushed back, whereby a clamping force K is generated, which the flat object on the clamping tongue 20 and in particular the Adhesive covering strip 28 presses on. As a result of the acute angle α, no or only a small force component can act on the clamping jaw 32 against the closing direction S. This force component is caused by the frictional force in the guide gap 30 without teres added, so that the clamp 10 is self-holding in the clamping position 36.
An dem den Klemmfüssen 42 gegenüberliegenden Ende 48 ist die Klemmbacke 32 mit seitlichen Vorsprüngen 50 versehen und rohrartig gebogen. Die Vorsprünge 50 sind dazu bestimmt, mit einem Öffnungselement zusammenzuwirken, um die Klemmbacke 32 von der Klemmstellung 36 entgegen der Schliessrichtung S in die Offenstellung 34 zu verschieben.At the end 48 opposite the clamping feet 42, the clamping jaw 32 is provided with lateral projections 50 and bent in a tube-like manner. The projections 50 are intended to cooperate with an opening element in order to move the clamping jaw 32 from the clamping position 36 against the closing direction S into the open position 34.
Der Tragteil 12 besteht aus einem Tragkörper 52 mit einer Ausnehmung 54, in die ein Keilkörper 56 eingelegt ist, der mit einer Haltenase 58 die Klemmzunge 20 hintergreift und derart in der Ausnehmung 54 gehalten ist. Der Tragkörper 52 und der Keilkörper 56 begrenzen den Führungsspalt 30.The support part 12 consists of a support body 52 with a recess 54, into which a wedge body 56 is inserted, which engages behind the clamping tongue 20 with a retaining lug 58 and is held in the recess 54 in this way. The support body 52 and the wedge body 56 delimit the guide gap 30.
Die Fig. 4 bis 6 zeigen einen Teil einer Vorrichtung 60 zum Verarbeiten von Druckereiprodukten 62, wie Zeitungen, Zeitschriften und dergleichen. Gezeigt ist ein Übernahme- abschnitt 64, in welchem mittels Klemmen 10 von einem Bandförderer 66 zugeführte Druckereiprodukte 62 zum Weitertransport übernommen werden. Im Übernahmeabschnitt 64 verlaufen die Führungsschienen 16 in vertikaler Richtung und die unmittelbar hintereinander angeordneten und aneinander anliegenden Klemmen 10 werden in einer Förderrichtung F von unten gegen oben kontinuierlich vorwärts bewegt. In Förderrichtung F gesehen, sind die Klemmzungen 20 der Klemmen 10 bezüglich der Klemmbacken 32 nachlaufend. Das freie Ende 20' der Klemmzungen 20 ist dem Bandförderer 66 zugewandt, der dazu bestimmt ist, die Druckereiprodukte 62 in Zuführrichtung Z in einer Schuppenformation zu transportieren, in welcher jedes Druckereiprodukt 62 auf dem nachlaufenden aufliegt. Auf der bezüglich den Füh- rungsschienen 16 dem Bandförderer 66 gegenüberliegenden Seite ist eine Schliessvorrichtung 68 für die Klemmen 10 angeordnet. Sie weist ein in Pfeilrichtung A mit einer Geschwindigkeit v umlaufend angetriebenes endloses Zugorgan 70 auf, die grösser ist als die Geschwindigkeit v^, mit welcher die Klemmen 10 bewegt werden. Am Zugorgan 70 sind im Abstand hintereinander Nocken 72 angeordnet, die dazu bestimmt sind, je mit dem Ende 48 einer Klemmbacke 32 zusammenzuwirken .4 to 6 show part of an apparatus 60 for processing printed products 62 such as newspapers, magazines and the like. A transfer section 64 is shown, in which printed products 62 fed from a belt conveyor 66 are taken over by means of clamps 10 for further transport. In the take-over section 64, the guide rails 16 run in the vertical direction and the clamps 10 which are arranged one behind the other and abut one another are continuously moved forward in a conveying direction F from below towards above. Seen in the direction of conveyance F, the clamping tongues 20 of the clamps 10 are trailing with respect to the clamping jaws 32. The free end 20 'of the clamping tongues 20 faces the belt conveyor 66, which is intended to transport the printed products 62 in the feed direction Z in a scale formation, in which each printed product 62 rests on the trailing one. On the regarding tion rails 16 opposite the belt conveyor 66, a closing device 68 for the terminals 10 is arranged. It has an endless traction element 70 which is driven in the direction of arrow A at a speed v and which is greater than the speed v ^ at which the clamps 10 are moved. Cams 72, which are intended to interact with the end 48 of a clamping jaw 32, are arranged one behind the other on the traction element 70.
Die Zuführgeschwindigkeit des Bandförderers 66 und die Geschwindigkeit Vf, mit welcher die Klemmen 10 bewegt v/erden, sind derart aufeinander abgestimmt, dass jeder Klemme 10 ein Druckereiprodukt 62 zugeführt wird. Wie dies aus der Fig. 4 hervorgeht, untergreift jeweils eine Klemmzunge 20 das über das Ende des Bandförderers 66 vorstehende Druckereiprodukt 62 und hebt dieses in Förderrichtung F an. Etwa zum gleichen Zeitpunkt wie die betreffende Klemmzunge 20 das Druckereiprodukt 62 berührt, schlägt ein Nocken 72 der Schliessvorrichtung 68 am Ende 48 der betreffenden Klemmbacke 32 an und verschiebt diese aus der Offenstellung 34 in Schliessrichtung S; dies infolge des Unterschiedes zwischen der Geschwindigkeit v der Nocken 72 und der Geschwindigkeit v^ der Klemmen 10.The feed speed of the belt conveyor 66 and the speed Vf at which the clamps 10 are moved / are coordinated with one another such that a printed product 62 is fed to each clamp 10. As can be seen from FIG. 4, a clamping tongue 20 engages under the printed product 62 projecting over the end of the belt conveyor 66 and lifts it in the conveying direction F. At about the same time as the relevant clamping tongue 20 touches the printed product 62, a cam 72 of the closing device 68 strikes the end 48 of the relevant clamping jaw 32 and moves it from the open position 34 in the closing direction S; this is due to the difference between the speed v of the cams 72 and the speed v ^ of the terminals 10.
In der Fig. 5 ist jener Zeitpunkt während des Schliessvor- gangs der Klemme 10 gezeigt, in welcher der Klemmfuss 32 mit dem Druckereiprodukt 62 in Berührung kommt. Da aber infolge seiner Eigenstabilität das Druckereiprodukt 62 noch nicht flächig an der Klemmzunge 20 anliegt, kann dieses in Zuführrichtung Z noch weiter in das Klemmenmaul eingeschoben werden, solange, bis es vom Klemmfuss 42 an den Haftbelagsstreifen 28 zur Anlage gebracht wird. Ab diesem Moment wird bei Weiterbewegung der Klemmbacke 32 in Schliessrichtung S der sich dabei verlängernde Klemmschenkel 40 in der Art einer Biegefeder gespannt, wodurch sich Klemmkraft aufbaut, mit welcher das Druckereiprodukt 62 zum Weitertransport von der Klemme 10 gehalten wird, wie dies in der Fig. 6 gezeigt ist. Es versteht sich von selbst, dass die Haftwirkung der Haftbelagsstreifen 28 auf das Druckereiprodukt 62 grösser ist als die Gleitreibung zwischen den Klemmfüssen 42 und dem Druckereiprodukt 62. Falls notwendig, kann der Klemmfuss 42 mit einem Gleitbelag versehen sein. Wie dies der Fig. 6 weiter entnehmbar ist, sind die Klemmen 10 jeweils beim Erreichen des Endes der Schliessvorrichtung 68 in Schliessstellung 36.5 shows the point in time during the closing process of the clamp 10 at which the clamping foot 32 comes into contact with the printed product 62. However, since, due to its inherent stability, the printed product 62 does not yet lie flat against the clamping tongue 20, it can be pushed further into the clamping mouth in the feed direction Z until it is brought into contact with the adhesive covering strip 28 by the clamping foot 42. From At this moment, when the clamping jaw 32 moves further in the closing direction S, the clamping leg 40, which is lengthening in the process, is tensioned in the manner of a spiral spring, as a result of which clamping force is built up with which the printed product 62 is held by the clamp 10 for further transport, as is shown in FIG. 6 is shown. It goes without saying that the adhesive effect of the adhesive covering strips 28 on the printed product 62 is greater than the sliding friction between the clamping feet 42 and the printed product 62. If necessary, the clamping foot 42 can be provided with a sliding coating. As can also be seen in FIG. 6, the clamps 10 are each in the closed position 36 when the end of the closing device 68 is reached.
Die Fig. 7 bis 9 zeigen einen weiteren Teil, einen Abgabeabschnitt 74, der bereits im Zusammenhang mit den Fig. 4 bis 6 angesprochenen Vorrichtung 60. Im gezeigten Abgabeabschnitt 74 verlaufen die Führungsschienen 16 in horizontaler Richtung und die Klemmen 10 sind zum Transport der Druckereiprodukte 62 in Hängelage in Richtung gegen unten gerichtet. Die Klemmen 10 werden in Förderrichtung F bewegt. Beim Einlauf in den Abgabeabschnitt 74 befinden sich die Klemmbacken 32 in Klemmstellung 36 und halten im von ihnen und der betreffenden Klemmzunge 20 gebildeten Klemmspalt 44 je ein Druckereiprodukt 62. Auf den beiden Führungsschienen 16 ist eine keilförmige Öffnungskulisse 76 angeordne . Im Zuge der Bewegung in Förderrichtung F kommen die beiden Vorsprünge 50 der betreffenden Klemmbacke 32 an der Öffnungskulisse 76 zur Anlage und werden im Zuge der Weiterbewegung der Klemme 10 entgegen der Schliessrichtung S in Öffnungsrichtung gezogen. Fig. 7 zeigt den Zeitpunkt, zu welchem die Vorsprünge 50 einer Klemme 10 die Öffnungskulisse 76 berühren. Im Zuge der Weiterbewegung wird die Klemmbacke 32 nach oben gezogen, wodurch die Klemmkraft K verkleinert wird. Fig. 8 zeigt den Zeitpunkt, zu welchem der Klemmfuss 42 das Druckereiprodukt 62 freigibt, so dass dieses nach unten der nächsten Verarbeitungsstation übergeben wird. Anschliessend wird die Klemmbacke 32 vollständig in Offenstellung 34 bewegt, wie dies Fig. 9 zeigt. Die Klemme 10 ist zur erneuten Aufnahme eines Druckereiprodukts 62 bereit. Die Reibungsverhältnisse im Führungsspalt 30 sind ausreichend, die Klemmbacke 32 in Offenstellung 34 zu halten.FIGS. 7 to 9 show a further part, a delivery section 74, of the device 60 already mentioned in connection with FIGS. 4 to 6. In the delivery section 74 shown, the guide rails 16 run in the horizontal direction and the clamps 10 are used to transport the printed products 62 directed towards the bottom in a hanging position. The clamps 10 are moved in the conveying direction F. When entering the dispensing section 74, the clamping jaws 32 are in the clamping position 36 and hold a printed product 62 in the clamping gap 44 formed by them and the relevant clamping tongue 20. A wedge-shaped opening link 76 is arranged on the two guide rails 16. In the course of the movement in the conveying direction F, the two projections 50 of the clamping jaw 32 in question come into contact with the opening link 76 and are drawn in the course of the further movement of the clamp 10 against the closing direction S in the opening direction. FIG. 7 shows the point in time at which the projections 50 of a clamp 10 touch the opening link 76. In the course of Further movement, the jaw 32 is pulled up, whereby the clamping force K is reduced. 8 shows the point in time at which the clamping foot 42 releases the printed product 62, so that it is handed down to the next processing station. The clamping jaw 32 is then moved completely into the open position 34, as shown in FIG. 9. The clamp 10 is ready to receive a printed product 62 again. The friction conditions in the guide gap 30 are sufficient to hold the clamping jaw 32 in the open position 34.
Fig. 10 zeigt einen Pufferabschnitt 78 der Vorrichtung 60. Dieser befindet sich beispielsweise zwischen dem in den Fig. 4 bis 6 gezeigten Übernahmeabschnitt 64 und dem in den Fig. 7 bis 9 gezeigten Abgabeabschnitt 74. Im Pufferabschnitt 78 verlaufen die Führungsschienen 16 ebenfalls in horizontaler Richtung und die je mit einem Druckereiprodukt 62 bestückten Klemmen 10 liegen aneinander an. Diese Figur zeigt insbesondere, dass die Klemmen 10 in Längsrichtung der Führungsschienen 16 gesehen, sehr schlank aufgebaut sind, so dass sie im Verhältnis zur Dicke der von ihnen haltbaren Druckereiprodukte 62 kaum auftragen. Dadurch ist eine hohe Packungsdichte im Pufferabschnitt erreichbar.10 shows a buffer section 78 of the device 60. This is located, for example, between the take-over section 64 shown in FIGS. 4 to 6 and the delivery section 74 shown in FIGS. 7 to 9. In the buffer section 78, the guide rails 16 likewise run horizontally Direction and the terminals 10, each equipped with a printed product 62, abut one another. This figure shows in particular that the clamps 10, as seen in the longitudinal direction of the guide rails 16, are of very slim design, so that they hardly apply in relation to the thickness of the printed products 62 they hold. This enables a high packing density to be achieved in the buffer section.
In den Fig. 11 und 12 ist in Ansicht und Draufsicht ein Antriebsabschnitt 80 der Vorrichtung 60 gezeigt. Im Antriebsabschnitt 80 ist der Boden 82 der im Querschnitt C- förmigen Führungsschienen 16 entfernt. Die in den übrigen Abschnitten durch den Boden 82 miteinander verbundenen seitlichen Schenkel 84 erstrecken sich aber kontinuierlich auch durch den Antriebsabschnitt 80, um die Klemmen 10 zu führen. Die Tragteile 12 der Klemmen 10 greifen mit ihren Führungsnasen 14 in die Führungsschienen 16 ein und ihre Stirnseiten 86 sind dazu bestimmt, im Antriebsabschnitt 80 mit Mitnahmekörpern 88 einer Antriebsvorrichtung 90 zusammenzuwirken; jeder Führungsschiene 16 ist eine Antriebsvorrichtung 90 zugeordnet. Im folgenden wird eine der symmetrisch aufgebauten und angeordneten Antriebsvorrichtungen 90 beschrieben. Eine Vielzahl von Mitnahmekörpern 88 sind an einer in sich geschlossenen Kette 92 angeordnet, die um zwei parallelachsige, in Richtung der Führungsschienen 16 voneinander beabstandete Kettenräder 94 geführt ist. Eines dieser Kettenräder 94 ist mittels eines nicht gezeigten Antriebsaggregats in Förderrichtung F umlaufend angetrieben. Das förderaktive Trum 96 der Kette 92 verläuft parallel zur betreffenden Führungsschiene 16 und ist hinsichtlich dieser derart angeordnet, dass die entsprechenden Mitnahmekörper 88 zwischen den Schenkeln 84 in die Führungsschiene 16 eingreifen und reibschlüssig an den Stirnseiten 86 der Tragteile 12 der Klemmen 10 anliegen. Eine zwischen den Kettenrädern 94 angeordnete Andrück- und Führungsschiene 98 sorgt für die Aufrechterhaltung der Andrückkraft .11 and 12, a drive section 80 of the device 60 is shown in a view and a top view. In the drive section 80, the bottom 82 of the guide rails 16 with a C-shaped cross section is removed. The lateral legs 84 connected to one another in the remaining sections by the base 82, however, also extend continuously through the drive section 80 in order to close the clamps 10 to lead. The support parts 12 of the clamps 10 engage with their guide lugs 14 in the guide rails 16 and their end faces 86 are intended to cooperate in the drive section 80 with driving bodies 88 of a drive device 90; a drive device 90 is assigned to each guide rail 16. One of the symmetrically constructed and arranged drive devices 90 is described below. A large number of driving bodies 88 are arranged on a self-contained chain 92 which is guided around two parallel-axis chain wheels 94 spaced apart in the direction of the guide rails 16. One of these chain wheels 94 is driven in a rotating manner in the conveying direction F by means of a drive unit, not shown. The conveying strand 96 of the chain 92 runs parallel to the relevant guide rail 16 and is arranged with respect to the latter in such a way that the corresponding entrainment bodies 88 engage between the legs 84 in the guide rail 16 and rest frictionally on the end faces 86 of the supporting parts 12 of the clamps 10. A pressure and guide rail 98 arranged between the chain wheels 94 ensures that the pressure force is maintained.
Wie dies aus der Fig. 12 auch erkennbar ist, sind die Klemmen 10 ausserhalb der Antriebsvorrichtung 90 in den Führungsschienen 16 frei beweglich, so dass sie zueinander einen unterschiedlichen Abstand einnehmen können.As can also be seen from FIG. 12, the clamps 10 are freely movable outside the drive device 90 in the guide rails 16, so that they can be at a different distance from one another.
Ein Antriebsabschnitt 80 kann sich beispielsweise mit einem Übernahmeabschnitt 64 oder einem Abgabeabschnitt 74 überlappen, um in diesen Abschnitten die Klemmen 10 in Förderrichtung F zu bewegen. Es ist auch denkbar, dass die Klemmbacken eben ausgebildet sind und die Klemmschuhe 42 entlang einer geradlinigen Bewegungsbahn beim Schliessen und Öffnen der Klemme bewegt werden. Auch in diesem Fall schliesst die Bewegungsbahn mit der Klemmzunge einen spitzen Winkel ein.A drive section 80 can, for example, overlap with a take-over section 64 or a delivery section 74 in order to move the clamps 10 in the conveying direction F in these sections. It is also conceivable for the clamping jaws to be flat and for the clamping shoes 42 to be moved along a straight line of motion when the clamp is being closed and opened. In this case, too, the trajectory forms an acute angle with the clamping tongue.
Selbstverständlich können die Klemmen 10 sowie die Vorrichtung 60 unterschiedlich ausgebildet sein.Of course, the terminals 10 and the device 60 can be designed differently.
Erfindungsgemässe Klemmen eignen sich beispielsweise zum Einsatz in Vorrichtungen, wie sie in den WO-Patentanmel- dungen PCT/CH97/00200 und PCT/CH97/00201 offenbart sind.Clamps according to the invention are suitable, for example, for use in devices such as are disclosed in WO patent applications PCT / CH97 / 00200 and PCT / CH97 / 00201.
Als Beispiel von flexiblen, flächigen Gegenständen sind im Zusammenhang mit dem gezeigten Ausführungsbeispiel Druckereiprodukte 62 genannt. Die erfindungsgemässen Klemmen 10 eigenen sich aber auch zum Halten von steifen, flächigen Gegenständen oder unterschiedlichen flexiblen flächigen Gegenständen .Printed products 62 are mentioned in connection with the exemplary embodiment shown as an example of flexible, flat objects. However, the clamps 10 according to the invention are also suitable for holding rigid, flat objects or different flexible flat objects.
Die Gegenstände können unterschiedliche Dicke aufweisen. Beim gezeigten Ausführungsbeispiel wird mit zunehmender Dicke auch die Klemmkraft K grösser.The objects can have different thicknesses. In the exemplary embodiment shown, the clamping force K also increases with increasing thickness.
Die Klemmzunge kann eigenelastisch ausgebildet und dazu beispielsweise aus Federstahlblech gefertigt sein. Schlussendlich wäre es auch denkbar, die Klemmzunge elastisch und die Klemmbacke biegesteif auszubilden. The clamping tongue can be designed to be inherently elastic and, for this purpose, can be made of spring steel sheet, for example. Finally, it would also be conceivable to design the clamping tongue to be elastic and the clamping jaw to be rigid.

Claims

P a t e n t a n s p r ü c h e Patent claims
1. Klemme zum Halten von flächigen Gegenständen, mit einer an einem Tragteil (12) fest angeordneten Klemmzunge (20) und einer am Tragteil (12) beweglich angeordneten Klemmbacke (32) , die von einer Offenstellung (34) in eine Klemmstellung (36) bewegbar ist, in der die Klemmbacke (32) mit der Klemmzunge (20) einen Klemmspalt (44) für den Gegenstand (62) bildet, dadurch gekennzeichnet, dass die Klemmbacke (32) an ihrem freien Ende (32') einen in Klemmstellung (36) mit der Klemmzunge (20) zusammenwirkenden Klemmfuss (42) aufweist, der bei der Bewegung der Klemmbacke (32) von der Offen- (34) in die Klemmstellung (36) entlang einer mit der Klemmzunge (20) einen spitzen Winkel (α) einschliessenden Bewegungsbahn (46) bewegbar ist, und der bei Weiterbewegung nach dem Auf- treffen auf den an der Klemmzunge (20) anliegenden Gegenstand (62) von diesem in Richtung quer zur Klemm- zunge (20) aus der Bewegungsbahn (46) zur Erzeugung der Klemmkraft (K) elastisch zurückdrängbar ausgebildet ist .1. Clamp for holding flat objects, with a clamping tongue (20) fixedly arranged on a supporting part (12) and a clamping jaw (32) movably arranged on the supporting part (12), which from an open position (34) into a clamping position (36) is movable, in which the clamping jaw (32) forms a clamping gap (44) for the object (62) with the clamping tongue (20), characterized in that the clamping jaw (32) at its free end (32 ') has a clamping position ( 36) with the clamping tongue (20) cooperating clamping foot (42), which during the movement of the clamping jaw (32) from the open (34) to the clamping position (36) along an angle with the clamping tongue (20) (α ) including the movement path (46), and the object (62) lying on the clamping tongue (20) in the event of further movement after hitting the object in the direction transverse to the clamping tongue (20) from the movement path (46) Generation of the clamping force (K) is designed to be elastically pushed back.
2. Klemme nach Anspruch 1, dadurch gekennzeichnet, dass die Klemmbacke (32) und gegebenenfalls die Klemmzunge2. Clamp according to claim 1, characterized in that the clamping jaw (32) and optionally the clamping tongue
(20) eigenelastisch ausgebildet sind.(20) are self-elastic.
3. Klemme nach Anspruch 1 oder 2, dadurch gekennzeichnet, dass die Klemmzunge (20) eine auf den Gegenstand (62) Haftwirkung entfaltende Oberfläche (28) , vorzugsweise einen Haftbelag aufweist. 3. A clamp according to claim 1 or 2, characterized in that the clamping tongue (20) has a surface (28) which has an adhesive effect on the object (62), preferably an adhesive coating.
4. Klemme nach einem der Ansprüche 1 bis 3, dadurch gekennzeichnet, dass der spitze Winkel (α) kleiner als 45°, vorzugsweise kleiner als oder etwa gleich 30° ist.4. Clamp according to one of claims 1 to 3, characterized in that the acute angle (α) is less than 45 °, preferably less than or approximately equal to 30 °.
5. Klemme nach einem der Ansprüche 1 bis 4, dadurch gekennzeichnet, dass die Klemmbacke (32) am Tragteil5. Clamp according to one of claims 1 to 4, characterized in that the clamping jaw (32) on the support part
(12) , vorzugsweise etwa in Längsrichtung der Klemmzunge (20) translatorisch bewegbar gelagert ist.(12), preferably mounted such that it can be moved in translation in the longitudinal direction of the clamping tongue (20).
6. Klemme nach einem der Ansprüche 1 bis 5, dadurch gekennzeichnet, dass die Klemmbacke (32) wenigstens annähernd die Form eines Kreiszylindermantelsegments aufweist, und die Klemmzunge (20) bezüglich der Klemmbacke (32) radial innenliegend angeordnet ist.6. Clamp according to one of claims 1 to 5, characterized in that the clamping jaw (32) has at least approximately the shape of a circular cylinder jacket segment, and the clamping tongue (20) is arranged radially on the inside with respect to the clamping jaw (32).
7. Klemme nach Anspruch 6, dadurch gekennzeichnet, dass das Tragteil (12) einen Führungsspalt (30) für die Klemmbacke (32) aufweist, dessen Krümmung der Krümmung der Klemmbacke (32) wenigstens annähernd entspricht.7. Clamp according to claim 6, characterized in that the supporting part (12) has a guide gap (30) for the jaw (32), the curvature of which corresponds at least approximately to the curvature of the jaw (32).
8. Klemme nach Anspruch 7. dadurch gekennzeichnet, dass die Klemmbacke (32) in ihrem Endbereich (32') zur Bildung des Klemmfusses (42) entgegen der Krümmung gebogen ist. 8. Clamp according to claim 7, characterized in that the clamping jaw (32) is bent in its end region (32 ') to form the clamping foot (42) against the curvature.
EP98916772A 1997-07-03 1998-05-05 Clamp for holding sheet-like objects Expired - Lifetime EP0993413B1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
CH161397 1997-07-03
CH161397 1997-07-03
PCT/CH1998/000180 WO1999001367A1 (en) 1997-07-03 1998-05-05 Clamp for holding sheet-like objects

Publications (2)

Publication Number Publication Date
EP0993413A1 true EP0993413A1 (en) 2000-04-19
EP0993413B1 EP0993413B1 (en) 2001-10-31

Family

ID=4214543

Family Applications (1)

Application Number Title Priority Date Filing Date
EP98916772A Expired - Lifetime EP0993413B1 (en) 1997-07-03 1998-05-05 Clamp for holding sheet-like objects

Country Status (9)

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US (1) US6286662B1 (en)
EP (1) EP0993413B1 (en)
JP (1) JP2002507179A (en)
AU (1) AU7026498A (en)
CA (1) CA2294720A1 (en)
DE (1) DE59801982D1 (en)
DK (1) DK0993413T3 (en)
RU (1) RU2185317C2 (en)
WO (1) WO1999001367A1 (en)

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US20030159956A1 (en) * 2002-02-26 2003-08-28 Woos Michael T. Display backing card
US20040084912A1 (en) * 2002-10-31 2004-05-06 Palmieri Dino A. Tool for sandwich cookie dunking
EP1836007B1 (en) * 2004-12-07 2015-12-02 Lockheed Martin Corporation Clamp for mixed mail sorter
US7464822B2 (en) * 2005-01-05 2008-12-16 Lockheed Martin Corporation Transporting and packaging device and method of use
JP4861068B2 (en) * 2006-06-15 2012-01-25 西研グラフィックス株式会社 Gripper for printed material transport equipment
DE102018218384A1 (en) * 2018-10-26 2020-04-30 Multivac Sepp Haggenmüller Se & Co. Kg PACKING MACHINE WITH TRANSPORT CHAIN

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GB1123381A (en) * 1965-09-15 1968-08-14 American Safety Table Co Improvements in or relating to sheet delivering and stacking apparatus
GB1291069A (en) * 1969-12-01 1972-09-27 Jacob Salomon Apparatus for arranging substantially laminar articles into spaced groups
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US4036356A (en) 1972-11-10 1977-07-19 Walter Reist Product handling equipment for an imbricated product formation
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DE4330610A1 (en) 1993-09-09 1995-03-16 Roland Man Druckmasch Sheet gripper for a sheet processing machine
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Also Published As

Publication number Publication date
DE59801982D1 (en) 2001-12-06
DK0993413T3 (en) 2001-11-19
US6286662B1 (en) 2001-09-11
AU7026498A (en) 1999-01-25
RU2185317C2 (en) 2002-07-20
EP0993413B1 (en) 2001-10-31
CA2294720A1 (en) 1999-01-14
WO1999001367A1 (en) 1999-01-14
JP2002507179A (en) 2002-03-05

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