DE112007000319B4 - Belt with protrusion - Google Patents

Abstract

A thermosetting resin belt (1) having a convex support (4) on its back where a resin projection (6) is formed integrally with the convex support (4) by injection molding, characterized by a U-shaped needle body (12), which is pierced by the convex mount (4) and is inserted therein to connect the Harzherstehstehung (6) and the convex support (4), wherein first the U-shaped needle body (12) into the convex support (4) pricked and is inserted, and then injection molding is performed so that the resin projection (6) embeds the U-shaped needle body (12).

Description

The present invention relates to a belt according to the preamble of claims 1, 4, 6, 8.

State of the art

pamphlet JP 2005-145568 A discloses a belt having a retaining rib formed on the back of the belt. On the retaining rib a protrusion is formed. Both in the retaining rib and in the formed protrusion, a through or blind hole may be formed, or a lateral projection may be formed thereon.

pamphlet JP 2001-114175 A discloses another strap with retaining ribs and molded protrusions. Through holes are provided in the ribs, which are filled with resin when the protrusions are formed.

In the German utility model DE 1 798 182 U there is disclosed a drive belt in which protrusions are attached by means of steel hooks guided by the belt main body.

In connection with the formation of protrusion on the back of the strap, the Applicant, who relates to the present application for patent application, previously proposed a strap having a through hole provided in a holder, the holder on the back of the strap being integral with the strap Rear side is constructed, as well as having a pair of sections which are adapted to this holder or insert this holder, wherein a protrusion element securely provided on this holder has an integrally formed section connecting part, which fills and closes the through hole in the holder and also both sections connects ( JP 3449415 B2 ; please refer 3 ). This previously proposed example is structured in such a way that the interior of one in a support member 4 formed through hole 5 by resin at the same time, as a protruding element 6 is formed, filled and closed so as to integrally form a section connector 7b to build. As a result, the protrusion member is firmly connected to the bracket and will not peel off and fall. In addition, the Applicant has also proposed a structure wherein a stainless pin is inserted in a through hole in a holder on which a protrusion member is fitted ( JP 2002-87567 A and JP 2001-106318 A ). This proposal includes three elements comprising the holder, pin and protrusion element.

The Applicant has also proposed a protruding belt wherein, as a countermeasure of overstressing the protruding member, protrusion is formed in a manner to allow peeling and falling in case of application of an overload (FIG. JP 2005-114175 A ).

With respect to a salient belt, the inventor of the present invention had made sustained serious research and development efforts. There are cases in which protrusion tilts sideways due to overloading, lateral loads applied to the protrusion, or any other reason. For example, there are commercial belts comprising a thermoplastic urethane protrusion formed by filling resin into a hole provided in a convex mount on a belt, thereby physically connecting the protrusion to the belts. Problems arise with these belts, which have a narrow convex support of about 3 mm thickness and 5 mm height formed on the back of a belt of 5 mm width, or other belts in which the convex support on the belt is thick at a stage of making the hole so that the hole is not made sufficiently large. can. Also, in terms of joint strength, the size and position of the hole provided in the convex mount are limited. Changing hole diameters can cause bond strength to change.

As far as a function is concerned, the protrusion tilts sideways if a force acts laterally on the formed protrusion. Although the convex support member will return to the normal position on the belt, it may happen that the protrusion does not return to the normal position. In particular, if the protrusion is positioned on a roll where belt instability increases, the risk of side tilting will increase.

When a pen is inserted, restrictions on a punching position are lessened. However, because a thick pen is inserted, there is a concern about buckling of the convex mount on the belt and compaction of the insert. As a solution, a structure has been conceived in which a plurality of pins are inserted.

In this case, however, ensuring the accurate positions, size and direction of punched holes is difficult because many holes are opened in the narrow convex mount. If the holes get too close together, the wall will be thinner and may be damaged. If the On the other hand, if the holes are too close to the outside, the outer wall may be damaged for the same reason. If the holes are not punched straight and parallel to the longitudinal direction of the belt with respect to direction, the formed protrusion element may bend and the correct transfer direction can not be obtained.

Summary of the invention

Problems to be solved by the invention

It is the object of the present invention to provide a protruding belt which provides improved joint strength of the resin projection.

Means of solving the problems

The present invention relates to forming a projecting belt by piercing and inserting a U-shaped needle body into a convex mount formed on the rear side of the belt (the convex mount provided on the back side of the belt can be hereinafter referred to as "convex mount on the belt Belt "), and then injecting protrusion-forming resin to form a protrusion; or a protruded belt whose protrusion is connected by using a through hole formed in a convex support member and a piercing needle body; or a protruding belt whose protrusion is connected by using a through hole formed in a convex support member from the width direction; or a projecting belt whose protrusion is connected using a hollow tube inserted into a convex support member; or a protruding belt in which the aforesaid means are combined.

Effects of the invention

Among other things, the present invention can improve the bonding strength, improve the resistance to lateral pressure, and also improve the ease of operation.

• (1) Verarbeitungsdurchführung, Verbindungsfestigkeit und Funktion (Formwiederherstellbarkeit) sind gegenüber einem herkömmlichen Verfahren, in welchem ein Loch gefüllt ist, verbessert.
• (2) Der rigide U-förmige Nadelkörper verformt sich nicht, wenn er durch den Riemen gestochen wird und darin eingefügt wird oder während einer Benutzung eine Belastung erfährt.
• (3) Während der Durchbohren-Operation, ist das anzuwendende Teil unter Benutzung einer Zangen-ähnlichen Spannvorrichtung in einer Weise eingelegt, welche Drehung verhindert und eine stabile Position aufrecht erhält, so dass die genaue Einfügeposition und -richtung bezüglich der konvexen Halterung sichergestellt sein kann.
• (4) Starker Widerstand gegen seitlich angewendeten Druck ist erreicht. Insbesondere kann die Hervorstehung ihre Form sogar nach Empfangen eines seitlichen Drucks auf einer Rolle wiederherstellen, wo der Riemen oft instabil wird.
• (5) Da das gebogene Verbindungsstück des U-förmigen Nadelkörpers in Harz eingebettet ist, verbessert sich die Verbindungsfestigkeit und -stabilität.

In particular, the invention as it relates to claims 1 to 3 has the following operations and effects:

• (1) Processing performance, joint strength, and function (shape recoverability) are improved over a conventional method in which a hole is filled.
• (2) The rigid U-shaped needle body does not deform when it is pierced by the belt and inserted therein or subjected to stress during use.
• (3) During the piercing operation, the part to be used is inserted using a pair of plier-like chucks in a manner which prevents rotation and maintains a stable position so that the precise insertion position and direction with respect to the convex support can be ensured ,
• (4) Strong resistance to laterally applied pressure is achieved. In particular, the protrusion may recover its shape even after receiving a lateral pressure on a roller where the belt often becomes unstable.
• (5) Since the bent connector of the U-shaped needle body is embedded in resin, the connection strength and stability improve.

• (6) Durch Kombinieren des Nadelkörpers und Füllen des Lochs erhöht sich der Drehwiderstand und die Verbindungsfestigkeit kann verbessert werden, während das Risiko einer Seitenverkippung vermindert ist. Der Widerstand gegen Seitenverkippung verbessert sich und selbst wenn die Hervorstehung zusammenbricht, wird sie die ursprüngliche Form wiederherstellen.
• (7) Da nur ein einzelnes Loch gebildet ist und ein dünner Nadelkörper in den übrigen Bereich eingefügt ist, anstatt viele Löcher zu bilden oder viele Stifte einzufügen, sind die Genauigkeit und ein Freiheitsgrad höher, als wenn zwei Löcher in die konvexe Halterung gestanzt werden, welche sich elastisch verformen, oder wenn Stifteinfügung zweimal wiederholt ist. Um spezifisch zu sein, ist es, wenn das zweite Loch gestanzt wird, schwierig, das Loch korrekt zu stanzen, weil es angrenzend an das erste Loch positioniert ist und weil sich das daran anschließende Harz verformt hat. Auch wird der zuerst eingefügte Stift zu einem Hindernis, welches es schwieriger macht, den zweiten Stift einzufügen.
• (8) Obwohl ein Bereitstellen von vielen Durchgangslöchern die Festigkeit des schmalen konvexen Halterungselements selbst vermindert, ist der Nadelkörper dünn und daher ist die Beschädigung des konvexen Halterungselements klein.

In particular, the present invention as it relates to claims 4 and 5 has the following operations and effects:

• (6) By combining the needle body and filling the hole, rotational resistance increases and joint strength can be improved while reducing the risk of side tilting. The resistance to side tilt improves and even if the protrusion collapses, it will restore the original shape.
• (7) Since only a single hole is formed and a thin needle body is inserted in the remaining area instead of forming many holes or inserting many pins, the accuracy and one degree of freedom are higher than when two holes are punched in the convex support, which deform elastically, or if pin insertion is repeated twice. To be specific, when the second hole is punched, it is difficult to punch the hole correctly because it is positioned adjacent to the first hole and because the adjoining resin has deformed. Also, the first inserted pin becomes an obstacle, making it more difficult to insert the second pin.
• (8) Although providing many through-holes reduces the strength of the narrow convex support member itself, the needle body is thin, and therefore the damage of the convex support member is small.

• (9) Da das Verbindungsmittel in der Breitenrichtung der konvexen Halterung bereitgestellt ist, welche auf der Rückseite des Riemens bereitgestellt ist, ist das Verbindungsmittel orthogonal und wird nicht zu einer Drehachse, selbst wenn seitlicher Druck angewendet ist. Dem gemäß ist der Widerstand gegen Seitenverkippung verbessert und sogar, wenn die Hervorstehung zusammenbricht, wird sie die ursprüngliche Form wieder annehmen.

In particular, the invention as it relates to claims 6 and 7 has the following operation and effect:

• (9) Since the connection means is provided in the widthwise direction of the convex support provided on the rear side of the belt, the connection means is orthogonal and does not become a rotation axis even when lateral pressure is applied. This is according to the resistance to side tilting improves and even if the protrusion collapses it will resume the original shape.

• (10) Durch Benutzen einer hohlen Röhre kann eine große Verbindungsfestigkeit selbst mit einem kleinen Durchmesser erreicht werden. Die Lochfläche in dem konvexen Harzteil kann vermindert werden und die Abnahme in der Festigkeit der konvexen Halterung kann auch vermindert werden. Auch kann die aus dem Einfügen der Röhre in die konvexe Halterung resultierende Verformung vermindert werden, weil der Durchmesser klein ist.
• (11) Da Harz auch teilweise oder vollständig in den Leerraum der hohlen Röhre gefüllt ist, kann eine Verbindungsfunktion von sowohl der Verbindungskraft von gefülltem Harz und der Eingriffskraft des hervorstehenden Teils der Röhre von der konvexen Halterung erhalten werden.
• (12) Ein optimales Design, welches die erforderliche Verbindungsfestigkeit erfüllt, kann durch Auswählen einer geeigneten Anordnung, eines geeigneten Materials, einer geeigneten Ausdehnung und einer geeigneten Form der hohlen Röhre oder einer geeigneten Kombination des Vorgenannten erreicht werden. Viele hohle Röhren können benutzt werden.
• (13) Da sich die Verbindungsfestigkeit verbessert, verbessert sich der Widerstand gegen seitlichen Druck.

In particular, the invention as it relates to claims 8 and 9 has the following operations and effects:

• (10) By using a hollow tube, a high connection strength even with a small diameter can be achieved. The hole area in the convex resin part can be reduced, and the decrease in the strength of the convex support can also be reduced. Also, the deformation resulting from the insertion of the tube into the convex mount can be reduced because the diameter is small.
• (11) Since resin is also partially or completely filled in the hollow tube void, a joining function of both the bonding force of filled resin and the engaging force of the projecting part of the tube from the convex mount can be obtained.
• (12) An optimum design which satisfies the required joint strength can be achieved by selecting a suitable arrangement, material, expansion and shape of the hollow tube or a suitable combination of the foregoing. Many hollow tubes can be used.
• (13) Since the bonding strength improves, the resistance to lateral pressure improves.

Best mode to practice the invention

The present invention can provide a protrusion member on a support member formed as a convex shape on the back side of a toothed belt or V-belt integral with the back side to form a support for transferring sheets or other materials using the protrusion member or for use as a time detection device (time detection jig).

Although the size and the external shape of the protrusion are not specifically limited, providing an overhang in the upper part in the traveling direction has the effect of restricting the movement of the transferred article, setting it up and going beyond the protrusion. With regard to the protrusion structure, the belt may have a single protrusion or many protrusions at a constant pitch, or many protrusions may be formed over the whole or a partial area in the widthwise direction of the belt or, inter alia, in another construction another arrangement in the width direction.

The protrusion is formed by injecting protrusion-forming synthetic resin onto the support member provided on the belt body in an integral manner. The method used here is the so-called "outsert" formation method. The bracket is erected by the belt across a width which does not hinder the roller-moving action of the belt. For a toothed belt z. B. this width be similar to the tooth spacing. It should be noted, however, that this limitation does not apply when the belt reciprocates between rollers and thus the protrusion does not move about the rollers.

The belt body may be a toothed belt, a flat belt, V-belt or the like. The belt is primarily made of thermosetting synthetic resin.

As the material of the protrusion member, the materials described in the examples previously disclosed by the applicant regarding the present invention may be used. For example, these materials include, among others, acetal resin (POM), elastic urethane resin, polyamide resin (PA), polycarbonate resin (PC) and acrylonitrile-butadiene-styrene resin (ABS). The protrusion element can be hard or soft. By making the soft and elastic protrusion, a design can be achieved thereby to avoid undesired impact effects that the protrusion member is allowed to deform under a shock.

For the engagement of the support member and the protrusion member, the present invention proposes four types of embodiments. These different types of intervention can also be used in combination.

<Embodiment 1>

• (1) Der Riemen, auf welchem die konvexe Halterung gebildet ist, benutzt thermisch härtendes Polyurethanharz oder ein anderes thermisch härtendes synthetisches Harz, während die Hervorstehung thermoplastisches Polyurethanharz oder ein anderes thermoplastisches Ingenieurplastik benutzt.
• (2) Der grundsätzliche Prozess ist, unter Benutzung einer normalen Methode einen Riemen herzustellen, auf welchem eine konvexe Halterung gebildet ist, einen U-förmigen Nadelkörper in diese konvexe Halterung einzufügen, und dann thermoplastischen technischen (engineering) Plastik einzuspritzen, um eine Hervorstehung zu bilden, um einen mit Hervorstehung gebildeten Riemen herzustellen.
• (3) Die Hauptoperationen sind wie folgt: (a) Ein mit Hervorstehung gebildeter Übertragungsriemen ist zum Übertragen von Papier bzw. Papierbögen, etc. dadurch, dass sie unter Benutzung der Hervorstehung gehaltert sind, bereitgestellt; (b) Selbst wenn die Hervorstehung des mit Hervorstehung gebildeten Riemens eine seitliche Kraft auf der Rolle bezüglich der Übertragungsrichtung empfängt und zusammenbricht, wird sie die ursprüngliche Form wiederherstellen; und (c) die Verbindungsfestigkeit kann verbessert werden.
• (4) Zusätzlich zu dem Obigen stellt eine Benutzung eines U-förmigen Nadelkörpers die folgenden Operationen bereit: (a) Die Anordnungsrichtung (layout direction) des U-förmigen Nadelkörpers ist derart, dass der U-förmige Nadelkörper in der longitudinalen Richtung oder Breitenrichtung des Riemens durchgebohrt ist, so dass sich der Widerstand gegen den von der Richtung orthogonal zu der Durchbohrrichtung empfangenen Druck verbessert und als ein Resultat erhöht sich der Widerstand gegen ein Zusammenberechen und verbessert sich die Wiederherstellbarkeit der Form; (b) die Spitzen des hervorstehenden U-förmigen Nadelkörpers können in ein X oder in eine andere Form in ein Kreuzmuster gebogen sein; und (c) der gebogene Teil der U-Form ist mit Hervorstehung bildendem Harz gefüllt, wenn das Harz eingespritzt ist, was zu der Verbesserung der Verbindungsfestigkeit beiträgt.
• (5) Der U-förmige Nadelkörper ist ein Nadelkörper, welcher in der Form des Buchstaben ”U” gebogen ist und hat scharfe Spitzen an beiden Enden. ”U-Form” bezieht sich auf einen Zustand, wobei der Nadelkörper in solch einer Weise gebogen ist, dass beide Spitzen derselben Richtung gegenüberstehen. Der Nadelkörper muss nicht notwendigerweise nur einmal gebogen sein. Zum Beispiel kann er in der Form des Buchstaben ”M” gebogen sein. Im Wesentlichen repräsentiert die vorliegende Patentanmeldung einen Zustand, wobei ein einzelner Nadelkörper in solch einer Weise verformt ist, dass beide Spitzen in die konvexe Halterung auf der Rückseite des Riemens durchgebohrt sein können. Im Allgemeinen wird dieser Zustand auch als ”V-Form”, ”M-Form” oder ”umgekehrte C-Form” bezeichnet. Zum Beispiel sind diese Formen ähnlich denen von Heftnadeln. Der U-förmige Nadelkörper hat eine nadelähnliche Form. Wenn der U-förmige Nadelkörper dick ist, werden Probleme auftauchen, wie etwa, dass sich die konvexe Halterung aufgrund des Durchbohrens verformt. Bezüglich der spezifischen Dicke, kann ein U-förmiger Nadelkörper mit einer Dicke, welche ähnlich der einer Nähnadel ist, für einen Riemen angewendet werden, dessen Dicke ungefähr 5 bis 10 mm ist, obwohl die Dicke von der Größe und den physikalischen Eigenschaften der konvexen Halterung abhängt. Der U-förmige Nadelkörper hat eine genügende Rigidität, um sich nicht zu verformen, selbst wenn eine Belastung empfangen ist. Der U-förmige Nadelkörper erlaubt, beide Spitzen gleichzeitig durch die konvexe Halterung bei einem geregelten Abstand dazwischen durchzubohren. Die Durchbohroperation kann in einer stabilen festgehaltenen Haltung durch Haltern des gebogenen Teils der U-Form unter Benutzung eines zangenähnlichen Einspannwerkzeugs oder dergleichen durchgeführt werden. Wenn ein einzelner gerader Nadelkörper benutzt wird, kann ein stabiler Einspanndruck nicht sichergestellt werden und ein Versuch, ein gerades Durchbohren durchzuführen, scheitert oft aufgrund der elastischen Verformung des Harzes. Wenn der zweite Nadelkörper durchgebohrt wird, kann andererseits der erste Nadelkörper eine Behinderung werden, um ein erfolgreiches Durchbohren zu verhindern. Die U-Form verbessert nicht nur die Zuverlässigkeit der Durchbohroperation, sondern kann auch die Verbindungsfestigkeit verbessern sowie einen Widerstand gegen Vorwärts- und Seitwärtsbelastungen, weil der gebogene Teil der U-Form in eingespritztem Harz eingebettet ist und auch, weil dieser gebogene Teil orthogonal zu den Nadelschaften ist. Zusätzlich kann durch Bewirken, dass sich die hervorstehenden Abschnitte miteinander überkreuzen, die Verbindungsfestigkeit weiter verbessert werden.

In summary, the first embodiment uses a U-shaped needle body.

• (1) The belt on which the convex support is formed uses thermosetting polyurethane resin or other thermosetting synthetic resin, while the protrusion uses thermoplastic polyurethane resin or other thermoplastic engineering plastic.
• (2) The basic process is to produce a belt using a normal method, on which a convex mount is formed to insert a U-shaped needle body in this convex mount, and then inject thermoplastic engineering plastic to form a protrusion to produce a protruding belt.
• (3) The main operations are as follows: (a) a protruded transfer belt is provided for transferring paper sheets, etc., by being supported using the protrusion; (b) Even if the protrusion of the protruded belt receives and collapses a lateral force on the reel with respect to the transfer direction, it will restore the original shape; and (c) the bonding strength can be improved.
• (4) In addition to the above, use of a U-shaped needle body provides the following operations: (a) The layout direction of the U-shaped needle body is such that the U-shaped needle body in the longitudinal direction or width direction of the needle body Belt is drilled so that the resistance to the pressure received from the direction orthogonal to the piercing direction improves, and as a result, the resistance to coagulation increases and the recoverability of the shape improves; (b) the tips of the protruding U-shaped needle body may be bent into an X or other shape in a criss-cross pattern; and (c) the bent part of the U-shape is filled with protrusion-forming resin when the resin is injected, which contributes to the improvement in joint strength.
• (5) The U-shaped needle body is a needle body bent in the shape of the letter "U" and has sharp tips at both ends. "U-shape" refers to a state where the needle body is bent in such a manner that both peaks face the same direction. The needle body does not necessarily have to be bent only once. For example, it may be bent in the shape of the letter "M". In essence, the present patent application represents a condition wherein a single needle body is deformed in such a manner that both tips can be drilled in the convex mount on the back of the belt. In general, this condition is also referred to as "V-shape", "M-shape" or "inverted C-shape". For example, these shapes are similar to those of staple needles. The U-shaped needle body has a needle-like shape. If the U-shaped needle body is thick, problems will arise, such as the convex support deforming due to puncturing. Regarding the specific thickness, a U-shaped needle body having a thickness similar to that of a sewing needle can be applied to a belt whose thickness is about 5 to 10 mm although the thickness is of the size and physical properties of the convex support depends. The U-shaped needle body has sufficient rigidity so as not to deform even when a load is received. The U-shaped needle body allows both tips to pass through the convex support at a controlled distance therebetween at the same time. The puncture operation can be performed in a stable retained posture by supporting the bent part of the U-shape using a tongs-like clamping tool or the like. When a single straight needle body is used, a stable clamping pressure can not be ensured, and an attempt to make a straight piercing often fails due to the elastic deformation of the resin. On the other hand, when the second needle body is pierced, the first needle body may become a hindrance to prevent successful puncturing. Not only does the U-shape improve the reliability of the piercing operation, but it can also improve the joint strength and resistance to forward and sideways stresses, because the bent part of the U-shape is embedded in injected resin and also because this bent part is orthogonal to the Needles is. In addition, by causing the protruding portions to cross each other, the connection strength can be further improved.

<Embodiment 2>

The second embodiment uses injection resin filled in a through hole in combination with a needle body.

Even if the direction of the through hole and the insertion direction of the needle body are aligned with the longitudinal direction of the belt, the resistance to lateral pressure increases.

• (1) Durch Kombinieren des Nadelkörpers und Füllen des Lochs erhöht sich der Drehwiderstand und die Verbindungsfestigkeit kann verbessert werden, während das Risiko einer seitlichen Verkippung vermindert ist. Der Widerstand gegen seitliche Verkippung verbessert sich und, selbst wenn die Hervorstehung zusammenbricht, wird sie die ursprüngliche Form wiederherstellen.
• (2) Da nur ein einzelnes Loch gebildet ist und ein dünner Nadelkörper in den übrigen Bereich eingefügt ist, anstatt viele Löcher zu bilden oder viele Stifte einzufügen, sind die Genauigkeit und Freiheitsgrad höher, als wenn zwei Löcher in die konvexe Halterung gestanzt sind, welche sich elastisch verformt, oder wenn eine Stifteinfügung zweimal wiederholt ist. Um spezifisch zu sein, ist es, wenn das zweite Loch gestanzt ist, schwierig, das Loch korrekt zu stanzen, weil es angrenzend an das erste Loch positioniert ist und weil sich das anschließende Harz verformt hat. Auch wird der zuerst eingefügte Stift zu einem Hindernis, um es schwieriger zu machen, den zweiten Stift einzufügen.
• (3) Obwohl Bereitstellen von vielen Durchgangslöchern die Festigkeit des schmalen konvexen Halterungselements selbst vermindert, ist der Nadelkörper dünn und daher ist die Beschädigung des konvexen Halterungselements klein.

In this embodiment, wherein a through hole is used in combination with a needle body, the following effects are achieved, inter alia:

• (1) By combining the needle body and filling the hole, rotational resistance increases and joint strength can be improved while reducing the risk of lateral tilting. The resistance to lateral tilting improves and, even if the protrusion collapses, it will restore the original shape.
• (2) Since only a single hole is formed and a thin needle body is inserted in the remaining area instead of forming many holes or inserting many pins, the accuracy and degree of freedom are higher than when two holes are punched in the convex support, which deforms elastically or when a pin insertion is repeated twice. To be specific, when the second hole is punched, it is difficult to punch the hole correctly because it is positioned adjacent to the first hole and because the subsequent resin has deformed. Also, the first inserted pen becomes an obstacle to making it more difficult to insert the second pen.
• (3) Although providing many through-holes reduces the strength of the narrow convex support member itself, the needle body is thin, and therefore the damage of the convex support member is small.

• (1) Der Riemen, auf welchem eine konvexe Halterung gebildet ist, benutzt thermisch härtendes Polyurethanharz oder ein anderes thermisch härtendes synthetisches Harz, während die Hervorstehung thermoplastisches Polyurethanharz oder anderes thermoplastisches technisches Plastik (engineering plastic) benutzt.
• (2) Der grundsätzliche Prozess ist, unter Benutzung eines normalen Verfahrens einen Riemen herzustellen, auf welchem eine konvexe Halterung gebildet ist, ein Durchgangsloch in diese konvexe Halterung zu stanzen, eine Nadel einzufügen, und dann thermoplastisches technisches Plastik durch Spritzgießen einzuspritzen, um eine Hervorstehung zu bilden, um einen mit Hervorstehung gebildeten Riemen herzustellen.
• (3) Die Hauptoperationen sind wie folgt: (a) Ein mit Hervorstehung gebildeter Übertragungsriemen ist zum Übertragen von Papier bzw. Papierbögen, etc. dadurch, dass sie unter Benutzung der Hervorstehung gehaltert sind, bereitgestellt; (b) Sogar wenn die Hervorstehung des mit Hervorstehung gebildeten Riemens eine seitliche Kraft auf der Rolle bezüglich der Übertragungsrichtung erfährt und zusammenbricht, wird sie die ursprüngliche Form wiederherstellen; und (c) die Verbindungsfestigkeit kann verbessert werden.
• (4) Selbst wenn die Richtung des Durchgangslochs und die Einfügerichtung des Nadelkörpers mit der longitudinalen Richtung des Riemens ausgerichtet sind, kann zusätzlich eine genügende Festigkeit und Widerstand sichergestellt sein. Der Widerstand gegen den von der seitlichen Richtung des Riemens erfahrenen Druck verbessert sich und als ein Resultat wird die Hervorstehung beständig gegen Zusammenbrechen und ihre Formwiederherstellbarkeit verbessert sich.
• (5) Der Nadelkörper hat scharfe Spitzen auf der Einfügeseite und das Rückende muss nicht scharf sein. Wenn der Nadelkörper einen Kopf hat, kann die Wölbung des Kopfes zu der Verbesserung der Verbindungskraft beitragen.

The protruding belt of this embodiment has the following characteristics:

• (1) The belt on which a convex support is formed uses thermosetting polyurethane resin or other thermosetting synthetic resin, while the protrusion uses thermoplastic polyurethane resin or other engineering plastic.
• (2) The basic process is to produce, using a normal method, a belt on which a convex support is formed, punch a through hole in this convex support, insert a needle, and then inject thermoplastic technical plastic by injection molding to protrude to form a projecting belt.
• (3) The main operations are as follows: (a) a protruded transfer belt is provided for transferring paper sheets, etc., by being supported using the protrusion; (b) Even if the protrusion of the protruded belt experiences a lateral force on the roll with respect to the transfer direction and collapses, it will restore the original shape; and (c) the bonding strength can be improved.
• (4) In addition, even if the direction of the through-hole and the insertion direction of the needle body are aligned with the longitudinal direction of the belt, sufficient strength and resistance can be ensured. The resistance against the pressure experienced from the lateral direction of the belt improves and, as a result, the protrusion becomes resistant to collapse and its shape recoverability improves.
• (5) The needle body has sharp points on the insertion side and the back end need not be sharp. If the needle body has a head, the curvature of the head can contribute to the improvement of the connection force.

<Embodiment 3>

The third embodiment uses a convex mount on which a connecting means such as a through hole formed in the width direction of the belt is formed.

Some of the currently available commercial protrusion belts have a hole provided in the convex mount on the belt and resin is filled in this hole to provide a physical connection. This hole is formed parallel to the longitudinal direction of the belt and, when lateral pressure is applied, the potted resin filled in the hole tends to become an axis about which the protrusion rolls.

The third embodiment explained above provides a projecting belt made of thermosetting resin and having a convex support on its back surface where a resin projection is formed integrally with the convex support by injection molding, such as having Characterized in that injection molding resin filled in a through hole formed in the convex support in the width direction and / or a needle body or a hollow tube inserted in the convex support on the belt are characterized are used as a means for connecting the resin projection and the convex support. Since the connection means is provided in the widthwise direction of the convex support provided on the rear side of the belt, the connection means does not become a rotation axis even if lateral pressure is experienced. Accordingly, the resistance to lateral tilt improves, and even if the protrusion collapses, it will restore the original shape.

• (a) Bezüglich des Verbindungsmittels können viele Verbindungsmittel desselben Typs oder verschiedener Typen kombiniert werden.
• (b) Bezüglich des Verbindungsmittels kann ein Verbindungsmittel in der Breitenrichtung und der longitudinalen Richtung kombiniert werden.
• (c) Bezüglich des Verfahrens eines Einfügens des Nadelkörpers kann Durchbohren oder Einfügen nach Stanzen benutzt werden.
• (d) Bezüglich der Form des Durchgangslochs kann unter anderem eine kreisförmige, bogenförmige oder unregelmäßige Form benutzt werden.
• (e) Bezüglich des Nadelkörpers kann er gerade oder U-förmig sein.

The following variations are possible:

• (a) With regard to the bonding agent, many bonding agents of the same type or different types can be combined.
• (b) With respect to the connection means, a connection means in the width direction and the longitudinal direction can be combined.
• (c) With regard to the method of inserting the needle body, piercing or insertion after punching can be used.
• (d) With regard to the shape of the through hole, among others, a circular, arcuate or irregular shape may be used.
• (e) With respect to the needle body, it may be straight or U-shaped.

• (1) Der Riemen, auf welchem eine konvexe Halterung gebildet ist, benutzt thermisch härtendes, synthetisches Harz, während die Hervorstehung thermoplastisches Polyurethanharz oder anderes thermoplastisches technisches Plastik benutzt.
• (2) Der grundsätzliche Prozess ist, unter Benutzung eines normalen Verfahrens einen Riemen herzustellen, auf welchem eine konvexe Halterung gebildet ist, ein Durchgangsloch in diese konvexe Halterung zu stanzen und einen Nadelkörper einzufügen, und dann durch Spritzgießen thermoplastisches technisches Plastik einzuspritzen, um eine Hervorstehung zu bilden, um einen mit Hervorstehung gebildeten Riemen herzustellen.
• (3) Die Hauptoperationen sind wie folgt: (a) Ein mit Hervorstehung gebildeter Übertragungsriemen ist zum Übertragen von Papier bzw. Papierbögen, etc. dadurch, dass sie unter Benutzung der Hervorstehung gehaltert sind, bereitgestellt; (b) Selbst wenn die Hervorstehung des mit Hervorstehung gebildeten Riemens eine seitliche Kraft an der Rolle bezüglich der Übertragungsrichtung erfährt und zusammenbricht, wird sie die ursprüngliche Form wiederherstellen; und (c) die Verbindungsfestigkeit kann verbessert werden, weil das Durchgangsloch länger gemacht werden kann.
• (4) Weil das Verbindungsmittel in der Breitenrichtung gebildet ist, vermindert sich der Widerstand in der Umfangsrichtung und der Biegewiderstand des Riemens vermindert sich, wenn die Hervorstehung sich über der Rolle dreht. Weil sich der Rolldrehwiderstand vermindert, wird die Drehhaltung der Hervorstehung stabil und das Risiko einer seitlichen Verkippung auf der Rolle vermindert sich. Weil das Verbindungsmittel in der Breitenrichtung gebildet ist, verbessert sich der Widerstand gegen von der seitlichen Richtung des Riemens erfahrenen Druck und die Hervorstehung wird beständiger gegen Zusammenbrechen und ihre Formwieder herstellbarkeit verbessert sich auch.
• (5) Weil das Verbindungsmittel in der Breitenrichtung gebildet ist, kann die Dicke der unteren Fläche der Hervorstehung vermindert werden und der Widerstand, welcher entsteht, wenn der Riemen um die Rolle passiert wird, kann vermindert werden.

The protruded belt of this embodiment has the following characteristics:

• (1) The belt on which a convex support is formed uses thermosetting synthetic resin, while the protrusion uses thermoplastic polyurethane resin or other thermoplastic engineering plastic.
• (2) The basic process is to produce, using a normal method, a belt on which a convex support is formed, to punch a through hole in this convex support and insert a needle body, and then to inject thermoplastic engineering plastic by injection molding to protrude to form a projecting belt.
• (3) The main operations are as follows: (a) a protruded transfer belt is provided for transferring paper sheets, etc., by being supported using the protrusion; (b) Even if the protrusion of the protruded belt experiences a lateral force on the roller with respect to the transmission direction and collapses, it will restore the original shape; and (c) the connection strength can be improved because the through hole can be made longer.
• (4) Because the connecting means is formed in the width direction, the resistance in the circumferential direction decreases and the bending resistance of the belt decreases as the protrusion rotates over the roller. As the rolling resistance decreases, the rotational posture of the protrusion becomes stable and the risk of lateral tilting on the roller decreases. Because the connecting means is formed in the width direction, the resistance to pressure experienced from the lateral direction of the belt improves, and the protrusion becomes more resistant to collapse, and its shape recoverability also improves.
• (5) Because the connecting means is formed in the width direction, the thickness of the under surface of the protrusion can be reduced, and the resistance that arises when the belt is passed around the roller can be reduced.

<Embodiment 4>

The fourth embodiment uses a hollow tube as a connecting means.

Some of the currently available commercial protrusion belts have a hole provided in the convex mount on the belt and resin is filled in this hole to provide a physical connection. Increasing the hole diameter to increase the connection strength is difficult in view of the limitation imposed on the size of the convex part. Also, inserting a thick pin involves the risk of the convex part buckling and becoming deformed or damaged.

The above-explained fourth embodiment provides a protruding belt made of thermosetting resin and having a convex support on its rear side, where a resin protrusion is formed integrally with the convex support by injection molding, such protruding one Belt characterized in that a hollow tube inserted in the convex support is used as a means for connecting the resin projection and the convex support. By using a hollow tube, a high connection strength can be achieved even with a small diameter, while the hole area can be reduced and the drop in the strength of the convex support can also be reduced. Also, the deformation caused by inserting the tube into the convex support can be reduced. Because the bonding strength improves, the resistance to lateral pressure improves.

• (a) Einfügerichtung der hohlen Röhre: Longitudinale Richtung oder Breitenrichtung des Riemens
• (b) Zahl und Anordnung der hohlen Röhren: Eine Röhre bis zu mehreren Röhren. Längsweise und breitenweise Röhren können kombiniert werden.
• (c) Mittel zum Verbinden hohler Röhren: Die Breitenrichtung und die longitudinale Richtung können kombiniert werden.
• (d) Material von hohler Röhre: Metall, Harz, etc.
• (e) Einfügeverfahren von hohler Röhre: Durchbohren, Einfügen nach Stanzen, etc.
• (f) Form hohler Röhre: Kreisförmige, bogenförmige, unregelmäßige Form, etc. Ein Ende kann in eine konische Form abgeschrägt sein.
• (g) Ausdehnung von hohler Röhre: Durchmesser 0,5 mm oder größer. Die Röhrenausbildung muss kleiner sein als die konvexe Halterung.

The following variations are possible:

• (a) Insertion direction of the hollow tube: Longitudinal direction or width direction of the belt
• (b) Number and arrangement of hollow tubes: One tube up to several tubes. Longitudinal and widthwise tubes can be combined.
• (c) Hollow tube connecting means: The width direction and the longitudinal direction can be combined.
• (d) hollow tube material: metal, resin, etc.
• (e) Insert method of hollow tube: piercing, insertion after punching, etc.
• (f) Hollow Tube Shape: Circular, arcuate, irregular shape, etc. One end may be chamfered into a conical shape.
• (g) Expansion of hollow tube: diameter 0.5 mm or larger. The tube design must be smaller than the convex mount.

• (1) Der Riemen, auf welchem eine konvexe Halterung gebildet ist, benutzt thermisch härtendes Polyurethanharz oder ein anderes thermisch härtendes synthetisches Harz, während die Hervorstehung thermoplastisches Polyurethanharz oder ein anderes thermoplastisches technisches Plastik benutzt.
• (2) Der grundsätzliche Prozess ist, unter Benutzung eines normalen Verfahrens einen Riemen, auf welchem eine konvexe Halterung gebildet ist, herzustellen, ein Durchgangsloch in diese konvexe Halterung zu stanzen, oder eine hohle Röhre ohne Stanzen eines Lochs einzufügen, und dann durch Spritzgießen thermoplastisches technisches Plastik einzuspritzen, um eine Hervorstehung zu bilden, um einen mit Hervorstehung gebildeten Riemen herzustellen.
• (3) Die Hauptoperationen sind wie folgt: (a) Ein mit Hervorstehung gebildeter Übertragungsriemen ist zum Übertragen von Papier bzw. Papierbögen, etc. dadurch, dass sie unter Benutzung der Hervorstehung gehaltert sind, bereitgestellt; und (b) da Harz in den Leerraum der hohlen Röhre gefüllt ist, kann eine Verbindungsfunktion von sowohl der Verbindungskraft des eingefüllten Harzes als auch der Eingriffskraft des hervorstehenden Teils der Röhre von der konvexen Halterung erhalten werden, was die Verbindungsfestigkeit verbessert.
• (4) Da sich die Verbindungsfestigkeit verbessert, verbessert sich der Widerstand gegen von der seitlichen Richtung des Riemens erfahrenen Druck. Als ein Resultat wird die Hervorstehung beständig gegen Zusammenbrechen und es verbessert sich ihre Formwiederherstellbarkeit.

The protruded belt of this embodiment has the following characteristics:

• (1) The belt on which a convex support is formed uses thermosetting polyurethane resin or other thermosetting synthetic resin, while the protrusion uses thermoplastic polyurethane resin or other thermoplastic engineering plastic.
• (2) The basic process is to produce a belt on which a convex support is formed using a normal method, to punch a through hole in this convex support, or to insert a hollow tube without punching a hole, and then thermoplastic by injection molding to inject engineering plastic to form a protrusion to make a protruding belt.
• (3) The main operations are as follows: (a) a protruded transfer belt is provided for transferring paper sheets, etc., by being supported using the protrusion; and (b) since resin is filled in the empty space of the hollow tube, a connection function of both the bonding force of the filled resin and the engagement force of the protruding part of the tube from the convex mount can be obtained, which improves the bonding strength.
• (4) As the bonding strength improves, the resistance to the pressure experienced by the lateral direction of the belt improves. As a result, the protrusion becomes resistant to collapse, and its shape recoverability improves.

The protruded belt will be explained below using examples.

<Hervorstehungselement>

(Shape and structure of the protrusion element)

Although the size and outer shape of the protrusion are not specifically limited, providing an overhang in the upper part in the traveling direction has the effect of restricting the movement of the transferred article, twisting up and going over the protrusion. With respect to the protrusion structure, the belt may have a single protrusion or many protrusions at a constant pitch, or many protrusions may be formed over the entire area or a partial area in the widthwise direction of the belt or, inter alia, in another arrangement in the widthwise direction ,

(Forming the protrusion element)

The protrusion member is formed by injection molding in such a manner that thermoplastic resin covers the convex support formed on the back surface of the belt.

(Material of the protrusion element)

The protrusion element uses thermoplastic synthetic resin. In particular, a caproic-type or ether-type thermoplastic polyurethane resin may be used.

The hardness is not particularly limited. When a soft elastic material is used, a design which avoids undesirable effects of a shock can be achieved by allowing the protrusion member to deform under impact.

(Belt body)

The belt body may be a toothed belt, flat belt, V-belt, or the like.

The belt is made of thermosetting synthetic resin containing a normal wire core and has a general structure. With respect to the thermosetting synthetic resin, thermosetting polyurethane resin can be used. The belt body has a convex mount on its back. This convex mount can be formed simultaneously when the belt body is formed.

<Combination of the belt body and the protrusion element>

The combination of the belt-forming thermosetting synthetic resin and the resulting thermoplastic synthetic resin is not particularly limited. Desired resin types and compositions may be selected according to the elasticity or flexibility of the transferred object or the elasticity or flexibility required for the projection. However, if the major component of synthetic resin of the belt is thermosetting polyurethane, use of thermoplastic polyurethane for emanation will provide greater affinity of the two.

<Production Process>

The manufacturing process is as follows: Make the belt body - provide the required processing according to the bonding agent - set the Injection Molds - Cast Thermoplastic Synthetic Resin by Injection Molding - Dissolve Molded Mold from Molds - Inspection and Finishing.

The manufacturing method of the belt body is basically the same as the manufacturing method of a normal toothed belt or V-shaped belt containing a wire core. However, dedicated molds are used to form the holder.

As for the processing according to the connecting means, the convex support is punched or pierced, and a U-shaped needle body, etc. is inserted or punched, and then, inter alia, a hollow tube is inserted. The direction and shape of the punching should also match the specific design.

Setting the injection molds: The molds used for injection molding of the protrusion member are prepared, and the convex support of the belt body on which the protrusion will be formed is fixed and set in the molds, after which the molds are clamped.

Injection molding: Inject and pour into the molds the thermoplastic resin which has been adjusted for the specific conditions and solidify the resin.

Removal of the molded part from the molds: Once the cast resin has solidified, remove it from the molds and remove it.

Inspection and Finishing: Inspect the protruding belt that has been removed from the molds, and finish.

<Connection strength>

The joint strength achieved under the present invention was evaluated by a tensile load test, measuring the load at which the protrusion would separate or break from the belt. In the conventional example, in which a through hole was provided in the support member in the direction of the belt to form the protrusion member, the thermoplastic polyurethane resin embedded in the through hole was ruptured, and thus the bonding strength would be limited to the resin strength corresponding to the thickness of the resin Through hole corresponds. For example, when a U-shaped needle body was used, the joining strength became twice or more than a degree achieved by the conventional example based on filling resin in a through hole.

The bond strength test was carried out using the tester whose schematic drawing is in 8th is shown.

The protrusion element was grabbed and stopped, and a belt B was hooked 21 suspended to perform a tensile load test at a speed of 50 mm / min to measure the strength at which the connection relationship between the protrusion and the belt body or other connection relationship would break.

Examples

Next, general examples that are common to the respective embodiments based on the embodiments of FIGS 1 to 6 illustrated illustrations explained.

1 Fig. 10 is a general view showing a breakaway of a protruding transmission belt.

2 is an enlarged view of a protrusion T.

3 shows cross-sectional views of an emergence in a conventional example.

4 shows isometric views of a protrusion element and a support member.

5 shows cross-sectional views of the in 4 shown protruding element and the support member.

6 Fig. 12 shows schematic views illustrating a state in which lateral pressure is applied to protrusion.

7 shows examples which relate to Examples 1 and 2, wherein a U-shaped needle body is used.

8th Fig. 12 is a schematic view of a bond strength tester.

9 FIG. 10 is a plan view of a convex mount in Example 3 based on a through hole and inserting a needle body. FIG.

10 shows a convex support in Example 4, wherein a through hole is formed in the width direction of a belt.

11 shows the convex support in Example 5, wherein a hollow tube is inserted.

12 shows Table 1 (see page 39).

As in 1 As shown, the projecting transmission belt, which has a protrusion T attached thereto, passes over right and left rollers and rotates. This protruding belt is used to horizontally convey articles such as paper sheets, etc. by applying a pressure through a protrusion member 6 which is provided on the back of the belt, or articles by the protrusion element 6 to hold them and thereby transfer them vertically. In the example shown, the protrusion contacts an obstacle S. The belt may be designed so that detection of the load created by this contact will cause the belt drive to stop to prevent damage, etc. In this example, a toothed belt is used. When the contacting body shown as an obstacle S is replaced with a contact sensor, a time detection function may also be added. The belt used in this example is an S3M toothed belt with a width of 6 mm, circumference of 252 mm and a thread of 3 mm.

2 FIG. 10 is an enlarged perspective view of protrusion of a protruding transmission belt. FIG. An integral on the back of the projecting belt body 1 formed support member 4 is between a front section 7f and a rear section 7r of the protrusion element 6 inserted. Resin is in a through hole 5 filled, which in the support member 4 is formed, and the front section 7f and the back section 7r are integrally formed by means of this filling resin.

3 shows cross-sectional views of the in 2 illustrated emergence.

The belt body 1 is a toothed belt body and the support member 4 is erected on the back of the belt, with the protrusion element 6 on this support element 4 is fixed. The support element 4 has dimensions of 6 mm (width), 2 mm (thickness) and 3 mm (height).

The belt body 1 is made of a thermosetting polyurethane resin compound and has on the inner side at a specific distance belt teeth 2 . 2 , .... As a tension element is a wire core 3 of glass fiber in a radial pattern along the bottom surface of each tooth 2 embedded. The belt body is formed and manufactured using normal methods except that the support member is formed thereon. The same methods are used in this example.

In the conventional example, there is a through hole 5 of 2.0 mm in diameter at the center of the support member in the longitudinal direction of the belt. The emergence element 6 is made of thermoplastic polyurethane resin and has a pair of front section 7f and a rear section 7r which the support element 4 intervening, and a section connecting part 7b which is the through hole 5 in the support member 4 fills and closes, and which also both sections 7f . 7r connects is provided integrally. Also is at the top edge of the protrusion element 6 a protrusion restricting portion provided for restricting the protrusion of the transferred article, wherein this protrusion restricting portion is positioned in a manner to protrude in the traveling direction of the belt. With respect to the thermoplastic polyurethane resin, ether-type thermoplastic polyurethane resin having a hardness of 85 is used. The hardness of this thermoplastic polyurethane resin is 85 ° (JIS A) while its TR is 40.25 kgf / cm.

To be specific, lay the spawning element 6 with the pair of sections 7f . 7r the support element 4 in between, while the section connecting part 7b the through hole 5 fills and closes and also both section 7f . 7r connects, and in this way is a physical fixation of the support member 4 reached. For their information, it is desirable that the lower surface of the protrusion element 6 The back of the strap is just contacted and not attached to the back. When the belt passes around a pulley, in this way the contact between the pullout element is 6 and the back of the belt is lost and the belt can pass smoothly along the roller.

Also, this protruding belt is used to horizontally convey articles such as paper sheets, etc. by applying pressure of the protrusion member 6 which is provided on the back of the belt or to the articles by the protrusion element 6 to hold them and thereby transfer them vertically. According to the protruded belt having the aforementioned constitution, this is in the support member 4 provided through hole 5 filled and closed by and also connected to the section connecting part 7b which is integral with the protrusion element 6 is provided, and therefore the protrusion element will become 6 do not detach and from the support element 4 fall, unless that supporting member 4 or the protrusion element 6 is damaged.

The examples and comparative examples below use belts of the aforementioned dimensions.

Isometric views, which are given for these examples, are in 4 given.

4 (a) shows a perspective view of the protrusion element 6 a basic form. It has an outer shape of a common rectangular body and a slit is formed at the center bottom, with the pieces on the left side and the right side of this slit as the front portion 7f or the rear section 7r are defined. The section connection part 7b is formed at the middle between these sections.

On the other hand shows 4 (b) a perspective view of a support member 4 a basic form. It is integral to the common rectangular body shape on the back of the toothed belt body 1 formed and the through hole 5 which connects the right and the left is formed at the center. This through-hole is filled with injection resin during outsert molding of the protrusion member.

5 (a) shows the cross section of in 4 while projecting element shown 5 (b) the cross section of in 4 Also shown retaining element shows. 5 (c) shows an enlarged view of the portions of the protrusion element 6 , The front section 7f and the back section 7r are through the section joint part 7b which passes through into the through hole 5 filled resin is formed. The expansions of the corresponding sections are w1, which is the width extension of the front section 7f is, and w2, which is the latitudinal extent of the rear section 7r is. In the illustrated example, the expansions are set so that the relation w2> w1 is satisfied to satisfy the resistance against the outward direction (from the front portion 7f ) to increase experienced pressure. This relationship is not a requirement and any other relationship may be adopted according to the connection means, etc.

For your information, the bottom surface of the front section rises 7f slightly off and therefore can in the Japanese disclosure document 2,002 to 87,567 Previously proposed by the Applicant method, which relates to the present patent application, be used to implement a measure to prevent intrusion, to control the risk that the transmitted article is trapped by the front portion, when the article is a paper sheet or a other layered material is.

6 illustrates the risk of lateral tilting when lateral pressure is applied to the protrusion T. In the example where a single through-hole is provided in the longitudinal direction of the belt, when the protrusion T pressure F is felt from the lateral direction, the resin filled in the through-hole sometimes becomes an axis (which corresponds to the section connecting part 7b corresponds) over which the protrusion tilts (see the change from the normal state in FIG 6 (a) to the over-dumped state in 6 (b) ). In particular, this risk is greater when the strap rotates around a roller where the sections tend to lift off. The present invention provides a projecting belt which provides a connection means which improves the resistance to lateral pressure which can lead to this tipping and which helps to maintain high shape recoverability even after collapse, as in FIG 6 (c) shown.

[Example 1]

<Examples 1 and 2 and Comparative Examples 1 and 2>

7 (a) to (d) illustrate the example given by example 1. In this example, a U-shaped needle body is pierced and inserted into the convex mount from the longitudinal direction of the belt. Piercing was performed by clamping the bent portion of the U-shape using a clamp-like chuck which stabilized the holding state and allowed the needle body to be drilled through at the specified position without failure.

In this example, a metallic U-shaped needle body was used 12 ( 7 (b) which by bending a wire 11 ( 7 (a) ) with a width of 0.5 mm and a thickness of 0.3 mm to an inner width of 2 mm and leg length of 5 mm was used. This wire may be, for example, a stapler needle (JIS G 6035). Through hole design can be improved by sharpening the tips of the needle.

This U-shaped needle body 12 was in the convex mount 4 ( 7 (c) ) drilled and inserted. The insertion position was the center of the convex mount.

For your information, the process of forming outsourcing by outsert molding after the processing of the bonding agent, which is shown in each example or comparative example provided under the present patent application comprising Example 1, the same as the previously explained process.

[Example 2]

7 (e) illustrates the example described by Example 2.

In this example, the tips of the U-shaped needle body which has been drilled through and projected in Example 1 are bent so that the two peaks cross each other to form a crossed part V3. Bending may be performed in the form of bending both sides or bending from one side or twisting both sides or one side. In this example, the legs can be made longer by the bending expansion.

Comparative Example 1

A conventional example is shown wherein a through hole of 2 mm in diameter is punched at the center of the convex support in the longitudinal direction of the belt.

A punching operation must be performed in such a way that the hole is made by abrading the material with a drill. The convex protrusion made of thermosetting polyurethane resin is elastic and it is difficult to punch a hole when the teeth are provided in a spiral pattern. Also, when the needle drill is pressed against, the convex part collapses, which makes it difficult to punch a straight hole, and thus this structure requires that a support layer be placed behind the back side, or that the operator brings required talent. It is also necessary to clean the abrasions generated by the punching operation so that they do not remain behind.

[Comparative Example 2]

In this example, two needle bodies (whose thickness is the same as the expansion explained in Example 1) are inserted in a position similar to the position in Example 1 to produce a similar insertion state. The needle bodies were clamped and drilled one after the other using a clamp-like jig. During the piercing operation, sometimes the first needle body interfered with the second piercing and, as a result, problems such as longer piercing time, insertion of a needle at an angle, and an offset insertion position occurred.

<Bond strength test>

Table 1 shows the results of joint strength tests conducted on embodiments obtained by Examples 1 and 2 and Comparative Examples 1 and 2, discussed above.

As a result, it was confirmed that the embodiments according to the present invention had a joint strength which was at least two to three times as great as the degree obtained by the conventional embodiment in Comparative Example 1 having a single through hole. The embodiments according to the present invention also showed an improvement of 50 or similar in connection strength compared to the embodiment in Comparative Example 2, wherein the number of needle bodies was simply increased to two. Some samples even showed a bond strength twice as high as the embodiment in Comparative Example 2. The embodiment in Example 2 with crossed peaks showed further improvement in joint strength.

<Formwiederherstellbarkeitstest>

Shape recoverability was also tested on the embodiments obtained by Examples 1 and 2 and Comparative Examples 1 and 2 by applying pressure from the side to collapse the protrusion and then removing the pressure. For your information, there was no destructive separation between the protrusion and the convex mount after the protrusion was broken by applying a lateral pressure, because of the elongation of the belt and the elasticity of the convex part.

In summary, the test results indicate that the embodiments in Examples 1 and 2 using a U-shaped needle body provide significantly higher bond strength. Since the shape recoverability is also acceptable and the needle body can be inserted in a single step in a stable manner, the working process can be shortened and accuracy can be improved.

[Example 3]

A through hole 15 of 2 mm diameter was at the center of the convex mount 4 punched in the longitudinal direction of the belt, while a needle body 14 in other part was pierced and inserted. When the shape recoverability test after collapse was carried out in the same manner as explained above for the embodiment obtained by this example, it was confirmed that the shape recoverability was similar to the embodiments in Examples 1 and 2.

[Example 4]

A through hole 16 of 1.5 mm in diameter was in a convex mount 9 in the width direction of the belt 1 punched.

In this example, the width of the convex mount was 9 made narrower than the width of the belt 1 while the protruding element 6 in the same width as the belt was formed.

When the shape recovery test after collapse was carried out in the same manner as explained above for the embodiment obtained by this example, it was confirmed that shape recoverability was similar to the embodiments in Examples 1 and 2. The punching operation was more difficult due to the longer distance.

[Example 5]

A through hole of 1.5 mm in diameter became at the center of the convex mount 4 in the longitudinal direction of the belt 1 punched and a hollow tube 17 with an outer diameter of 1.5 mm and a length of 5.0 mm (inner diameter of 1.0 mm, thickness of 0.25 mm, made of metal) was inserted in this through hole.

The results of the joint strength test, etc. are shown in Table 1.

It was confirmed that the connection strength 50 Although the working process requires two steps, including punching and tube insertion, the punched hole can be made smaller and a tube is inserted into the hole, both of which are advantageous because of the Reduce risk of error. Shape recoverability was also confirmed.

Compared with Comparative Example 3, this example using a hollow tube achieves high bonding strength as a result of two sources of engagement force: one is the cast thermoplastic urethane resin filled in the tube and the other is the tube which engages stands the prominence body. The connection strength is lower in this example in which a single needle body is inserted. This is likely because the connection between the needle body and the protrusion body is based on the restraint force generated by engaging the needle with the protrusion body and is not based on an adhesion force. For this reason, the protrusion body elastically deforms and separates as if it peels off and falls when a shearing load is applied to the protrusion body. It is believed that this is the reason for lower bond strength. Since the same mechanism operates at lateral pressure, there is a high risk that the protrusion tilts laterally and thus separates and falls.

LIST OF REFERENCE NUMBERS

2

belt body

3

tooth

4

wire core

5

supporting member

6

Through Hole

7

Hervorstehungselement

6a

Transmission mounting surface

8th

section

7b

Section connecting part

7f

Front section

7r

Rear section

9

role

10

supporting member

11

protrusion

12

wire

13

U-shaped needle body

14

Crossed part

15

needle body

16

Through Hole

18

tube

21

hook

Claims (10)

Straps ( 1 ) of thermosetting resin, with a convex mount ( 4 ) on its back, where a Harzhersprstehung ( 6 ) integral with the convex mount ( 4 ) is formed by injection molding, characterized by a U-shaped needle body ( 12 ), which by the convex mount ( 4 ) and is incorporated therein to the Harzhervorstehung ( 6 ) and the convex mount ( 4 ), wherein first the U-shaped needle body ( 12 ) in the convex mount ( 4 ) and then injection molding is carried out, so that the Harzhervorstehung ( 6 ) the U-shaped needle body ( 12 ) embeds. A belt according to claim 1, wherein the protruding parts of the U-shaped needle body ( 12 ) are bent. A belt according to claim 1 or 2, wherein the U-shaped needle body ( 12 ) in the longitudinal direction of the belt ( 1 ) is inserted. Straps ( 1 ) of thermosetting resin, with a convex mount ( 4 ) on its back, where a Harzhersprstehung ( 6 ) integral with the convex mount ( 4 ) is formed by injection molding, characterized in that injection molding resin, which in one in the convex mount ( 4 ) formed through hole ( 15 ) in combination with one in the convex mount ( 4 ) inserted needle body ( 14 ) the Harzvorvorstehung ( 6 ) and the convex mount ( 4 ), wherein first the through hole ( 15 ) in the convex mount ( 4 ) is formed and the needle body ( 14 ) at a location other than that of the through-hole ( 15 ), and then injection molding is carried out to prepare the resin ( 6 ) to build. A belt according to claim 4, wherein through-hole ( 15 ) and needle body ( 14 ) in the longitudinal direction of the belt ( 1 ) are manufactured or inserted. Straps ( 1 ) of thermosetting resin, with a convex mount ( 4 ) on its back, where a Harzhersprstehung ( 6 ) integral with the convex mount ( 4 ) is formed by injection molding, characterized in that injection molding resin, which in one in the convex mount ( 4 ) formed in the width direction through hole ( 16 ) and one in the convex mount ( 4 ) inserted needle body or a hollow tube, in which resin is filled, together the Harzhervorstehung ( 6 ) and the convex mount ( 4 ), wherein first the through hole ( 16 ) in the convex mount ( 4 ) is formed and the needle body or the hollow tube is inserted, and then injection molding is carried out to the Harzhervorstehung ( 6 ) to build. A belt according to claim 6, wherein a plurality of connection means are provided. Straps ( 1 ) of thermosetting resin, with a convex mount ( 4 ) on its back, where a Harzhersprstehung ( 6 ) integral with the convex mount ( 4 ) is formed by injection molding, characterized by a in the convex mount ( 4 ) inserted hollow tube ( 17 ) for connecting the resin projection ( 6 ) and the convex mount ( 4 ), wherein first the hollow tube ( 17 ) in the convex mount ( 4 ) and then resin into the hollow tube ( 17 ) is filled by injection molding to the Harzhervorstehung ( 6 ) to build. A belt according to claim 8, wherein the hollow tube ( 17 ) is inserted in the longitudinal direction and / or width direction of the belt (1). A belt according to any one of claims 1 to 9, wherein the resin constituting the resin protrusion is thermoplastic polyurethane resin and the belt-forming resin is thermosetting polyurethane resin.

Images