WO2000075530A1 - Structure et procede pour le raccordement d'une courroie plate - Google Patents

Structure et procede pour le raccordement d'une courroie plate Download PDF

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Publication number
WO2000075530A1
WO2000075530A1 PCT/JP2000/003706 JP0003706W WO0075530A1 WO 2000075530 A1 WO2000075530 A1 WO 2000075530A1 JP 0003706 W JP0003706 W JP 0003706W WO 0075530 A1 WO0075530 A1 WO 0075530A1
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WO
WIPO (PCT)
Prior art keywords
flat belt
reinforcing
thermoplastic resin
sheet
fibers
Prior art date
Application number
PCT/JP2000/003706
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English (en)
Japanese (ja)
Inventor
Takami Higashide
Original Assignee
Habasit Nippon Co., Ltd.
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 Habasit Nippon Co., Ltd. filed Critical Habasit Nippon Co., Ltd.
Publication of WO2000075530A1 publication Critical patent/WO2000075530A1/fr

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16G—BELTS, CABLES, OR ROPES, PREDOMINANTLY USED FOR DRIVING PURPOSES; CHAINS; FITTINGS PREDOMINANTLY USED THEREFOR
    • F16G3/00—Belt fastenings, e.g. for conveyor belts
    • F16G3/10—Joining belts by sewing, sticking, vulcanising, or the like; Constructional adaptations of the belt ends for this purpose

Definitions

  • the present invention belongs to the technical field of flat belts, and relates to a structure and a connection method for connecting flat belts at longitudinal ends.
  • the inventor of the present invention formed a sawtooth shape at both ends as viewed from the thickness direction of the flat belt (hereinafter, sometimes simply referred to as the thickness direction) and injected the two ends together.
  • the parts were glued or welded. in this way Then, the end face to be connected has an angle to the longitudinal direction, and the area of the end face increases. Therefore, the strength of the connection structure against the tensile force acting along the longitudinal direction and the bending force acting along the longitudinal direction (hereinafter, simply referred to as the tensile strength along the longitudinal direction and the bending strength along the longitudinal direction) is improved. be able to.
  • connection structure the end faces connected along the width direction of the flat belt (hereinafter, sometimes simply referred to as the width direction) at the mating portion are arranged, so that the connection structure extends along the width direction.
  • the engaging portion is easily torn by this tensile force. Such a tearing phenomenon is likely to occur when, for example, a foreign object is caught between the pulley and the flat belt, and further occurs when the flat belt gets over a knife edge having a larger curvature than the boule. It becomes easier.
  • the present inventors have tried to weld or bond a high-strength sheet to the surface of the mating portion, but this has caused the tensile force acting along the width direction to be reduced.
  • the strength of the connection structure (hereinafter simply referred to as the tensile strength along the width direction) is improved, but the bending strength along the longitudinal direction is excessive due to the reinforcing function of the sheet, and the flexibility of the connection structure is improved. This causes a new problem that the flat belt is difficult to orbit smoothly.
  • the present invention has been made in view of such a point, and an object of the present invention is to weld a flat belt with a thermoplastic resin, and to attach the flat bell to the flat belt.
  • Welding of tensile strength reinforcing fiber oriented in the width direction of the joint improves tensile strength and bending strength along the longitudinal direction, and prevents bending of the connection structure by preventing excessive bending strength.
  • the purpose is to significantly improve the tensile strength along the width direction while improving the properties, and to prevent the occurrence of tearing at the interlocking portion. It is another object of the present invention to obtain this connection structure with good connection workability.
  • the first flat belt connection structure is a structure for connecting the flat belts at their longitudinal ends, and is formed in a saw-tooth shape when viewed from the thickness direction.
  • the bonded end portions a connection layer made of thermoplastic resin that welds the end surfaces of both end portions, and a thermoplastic resin on at least one of the front surface, the back surface, and the intermediate surface of the bonded portions at both end portions.
  • a tensile strength reinforcing fiber arranged in the width direction of the flat belt and welded to the reinforcing layer.
  • the end face has an angle with respect to the longitudinal direction.
  • the area of the end face is increased, the tensile strength and the bending strength along the longitudinal direction are improved.
  • the reinforcing fibers are oriented in the width direction, the tensile strength along the width direction is greatly improved, and the occurrence of tearing at the mating portion is prevented.
  • the reinforcing layer does not have fibers oriented in the longitudinal direction, the bending strength along the longitudinal direction does not increase, and the reinforcing layer is properly maintained and the flexibility of the connection structure is secured.
  • the operation of welding the reinforcing fiber to the interlocking portion can be performed using a process of pressing and heating the interlocking portion, the connection operation is easy.
  • connection structure of the first flat belt can improve the tensile strength and the bending strength along the longitudinal direction, and can prevent the bending strength from becoming excessive, thereby improving the flexibility of the connection structure.
  • the tensile strength along the width direction can be significantly improved while preventing the occurrence of tearing at the mating portion. This connection structure can be obtained with good connection workability.
  • connection structure of the second flat belt is a structure for connecting the flat belt at an end in the longitudinal direction, and is formed in a sawtooth shape when viewed from the thickness direction, and the both ends are engaged with each other.
  • a connection layer made of thermoplastic resin that welds the end faces of both ends, and less of the front, back, and intermediate surfaces of the mating parts at both ends A woven fabric woven with a reinforcing layer formed of a thermoplastic resin on at least one surface, a tensile strength reinforcing fiber, and a retaining fiber for holding the reinforcing fiber, wherein the reinforcing fiber And a woven fabric which is arranged so as to face the width direction of the flat belt and is welded to the reinforcing layer.
  • the functions and effects obtained by the first flat belt connection structure can be obtained.
  • the reinforcing fibers are held by the retaining fibers, when connecting the flat belt, the work of arranging the reinforcing fibers on the front surface, the back surface, or the intermediate surface of the mating portion is easy. Become.
  • the spacing between the reinforcing fibers is maintained by the locking fibers, the reinforcing effect of the reinforcing fibers can be obtained uniformly in the longitudinal direction.
  • the spacing between the locking fibers was increased compared to the spacing between the reinforcing fibers.
  • the anchoring fiber hardly affects the bending strength along the longitudinal direction, and the bending strength along the longitudinal direction is appropriately maintained to ensure the flexibility of the connection structure.
  • the first method of connecting flat belts is to connect the flat belts at their ends in the longitudinal direction.
  • the flat belts are connected to each other by forming both ends in the longitudinal direction into a sawtooth shape when viewed from the thickness direction.
  • Process and a reinforcing sheet consisting of a thermoplastic resin sheet and a tensile strength reinforcing fiber aligned and fixed on at least one of the front, back and intermediate surfaces of the mating part.
  • a step of arranging the reinforcing fibers so as to face the width direction of the flat belt, or at least one of the front surface, the back surface, and the intermediate surface of the mating portion is provided with a thermoplastic resin sheet.
  • a reinforcing sheet made by fixing a woven fabric made of a tensile strength reinforcing fiber and a retaining fiber for holding the reinforcing fiber is arranged such that the reinforcing fiber is oriented in the width direction of the flat belt. And pressurizing and heating both ends and the reinforcing sheet. And in a step for cooling.
  • the end surfaces of both ends are welded by the thermoplastic resin of the reinforcing sheet.
  • a reinforcing layer is formed of a thermoplastic resin on the front surface, the back surface, or the intermediate surface of the interlocking portion.
  • a reinforcing fiber or a woven fabric is welded to the reinforcing layer to obtain the connection structure of the present invention. Since the reinforcing fiber or the woven fabric is fixed to the thermoplastic resin sheet, the work of arranging the reinforcing fiber or the woven fabric on the front surface, the back surface, or the intermediate surface of the mating portion becomes easy. Moreover, the spacing between the reinforcing fibers is maintained by being fixed to the sheet.
  • the flat belt originally contains thermoplastic resin
  • the thermoplastic resin used for welding the end faces of both ends and the like is used. Is supplemented by the reinforcing sheet, so that the thickness of the flat belt does not become thin.
  • the reinforcing fibers are held by the retaining fibers, so that the work of fixing the reinforcing fibers to the sheet while maintaining the spacing between the reinforcing fibers becomes easy. Even when the nonwoven fabric formed by the reinforcing fibers is fixed to the sheet, the reinforcing fibers are held together, so that the work of fixing the reinforcing fibers to the sheet becomes easy.
  • the second connection method of the flat belt is a method of connecting the flat belt at an end portion in the longitudinal direction, wherein both ends in the longitudinal direction of the flat belt are formed in a sawtooth shape when viewed from the thickness direction.
  • the process is to arrange the thermoplastic resin sheet so that it faces in the width direction of the flat belt, or at least one of the front and back surfaces of the mating portion has a tensile strength reinforcing fiber.
  • the end faces of both ends are welded by the thermoplastic resin of the sheet. Also, of the front and back surfaces of the A reinforcing layer is formed on at least one surface with a thermoplastic resin. Then, a woven or non-woven fabric is welded to the reinforcing layer to obtain the connection structure of the present invention.
  • the thermoplastic resin used for welding the end surfaces at both ends is replenished by the sheet, so that the thickness of the flat belt is reduced. None.
  • the reinforcing fibers are held by the retaining fibers, so that the operation of arranging the reinforcing fibers on the front surface and / or the back surface of the interlocking portion is facilitated. In addition, the spacing between the reinforcing fibers is maintained by the locking fibers.
  • the reinforcing fibers are held together, so that the work of arranging the reinforcing fibers on the front surface and / or the back surface of the interlocking portion becomes easy.
  • the third connection method of the flat belt is a method of connecting the flat belt at an end in the longitudinal direction, and forming both ends in the longitudinal direction of the flat belt in a sawtooth shape when viewed from the thickness direction.
  • a mating process, and a woven fabric woven with a tensile strength reinforcing fiber and a locking fiber for holding the reinforcing fiber is attached to the intermediate surface containing the thermoplastic resin in the interlocking portion, where the reinforcing fiber is a flat belt.
  • the reinforcing fibers are oriented in the width direction of the flat belt. And a step of pressing and heating both ends and then cooling.
  • the fourth flat belt connection method belongs to the first to third flat belt connection methods. That is, in these flat belt connection methods, the locking fiber is formed of the same thermoplastic resin as the thermoplastic resin of the flat belt or sheet, and the reinforcing fiber has a lower melting point. It is formed of a high material.
  • the operations and effects obtained by the first to third flat belt connection methods can be obtained.
  • the locking fiber is melted when both ends or both ends and the reinforcing sheet are heated, so that the obtained connecting structure of the present invention has a longitudinal direction on the front surface, the rear surface, and the intermediate surface.
  • the fibers that are suitable for the connection structure are eliminated, and the bending strength along the longitudinal direction does not increase, and is appropriately maintained to ensure the flexibility of the connection structure.
  • the fifth flat belt connection method is subordinate to the first flat belt connection method, i.e., in this flat belt connection method, the reinforcing sheet is provided with a reinforcing fiber or a thermoplastic resin sheet.
  • the woven fabric is welded by heating.
  • the functions and effects obtained by the first flat belt connection method can be obtained.
  • the reinforcing sheet is composed of only the thermoplastic resin and the reinforcing fiber or woven fabric, no impurities are mixed into the connecting layer and the reinforcing layer, and the quality of the flat belt connecting structure is improved. This is bad.
  • FIG. 1 to 4 show a connection structure of a flat belt according to the first embodiment.
  • Fig. 1 is a view from the surface
  • Fig. 2 is a cross-sectional view taken along line A-A of Fig. 1
  • Fig. 3 is a view from the back
  • Fig. 4 shows a part of the reinforcing fiber with a part of the reinforcing layer removed.
  • It is a perspective view.
  • 5 and 6 show a connection structure of a flat belt according to the second embodiment.
  • Fig. 5 is a view from the surface
  • Fig. 6 is a perspective view showing a part of a nonwoven fabric as a reinforcing fiber by removing a part of the reinforcing layer.
  • FIG. 7 and 8 show a connection structure of a flat belt according to the third embodiment.
  • Fig. 7 is a view from the surface
  • Fig. 8 is a perspective view showing a part of the woven fabric with a part of the reinforcing layer removed.
  • FIG. 9 to 12 show steps for completing the flat belt connection structure of the first embodiment.
  • FIG. 9 is a perspective view of a state where the ends of the flat belt are opposed to each other.
  • FIG. 10 is a perspective view showing a state where the ends of the flat belt are engaged with each other.
  • FIG. 11 is a perspective view of a state in which a reinforcing sheet is superimposed on a mating portion of a flat belt.
  • FIG. 12 is a perspective view of the flat belt where the mating portion and the reinforcing sheet have been cooled by pressing and heating.
  • FIG. 13 is a perspective view of the reinforcing sheet viewed from the surface where the reinforcing fibers are welded.
  • FIG. 14 is a perspective view of a reinforcing sheet used to complete the connection structure of the flat belt according to the second embodiment as viewed from the surface where the reinforcing fibers are welded.
  • FIG. 15 is a perspective view of a reinforcing sheet used to complete the connection structure of the flat belt according to the third embodiment as viewed from the surface where the reinforcing fibers are welded.
  • FIG. 16 is a sectional view showing the fourth embodiment
  • FIG. 17 is a sectional view showing the fifth embodiment
  • FIG. 18 is a sectional view showing the sixth embodiment
  • FIG. 19 is a seventh embodiment
  • FIG. 20 is a sectional view showing the eighth embodiment
  • FIG. 21 is a sectional view showing the ninth embodiment.
  • FIGS. 22 and 23 show one step in a connection method for completing the connection structure of the fifth embodiment.
  • FIG. 22 is a perspective view
  • FIG. 23 is a cross-sectional view taken along line BB of FIG.
  • FIG. 24 and FIG. 25 show one step in a connection method for completing the connection structure of the eighth embodiment.
  • Figure 24 is a perspective view
  • Figure 25 is ⁇ _ ⁇ in Figure 24. It is sectional drawing in a line.
  • FIG. 26 to 28 show steps for completing the connection structure of the first embodiment.
  • FIG. 26 is a perspective view of a state in which a woven fabric is overlaid on the engaging portion of the flat belt.
  • FIG. 27 is a perspective view showing a state in which a sheet is further stacked thereon.
  • FIG. 12 is a perspective view of the flat belt after it has been cooled by pressurizing and heating the engaging portion and the reinforcing sheet.
  • FIG. 29 shows steps for completing the flat-belt connection structure of the second embodiment. It is a perspective view in the state where the nonwoven fabric was piled up on the fitting part of the flat belt.
  • FIG. 30 and FIG. 31 show steps for completing the flat-belt connection structure of the ninth embodiment.
  • FIG. 30 is a perspective view of a state where the ends of the flat belt are engaged with each other.
  • FIG. 31 is a cross-sectional view taken along line DD of FIG. BEST MODE FOR CARRYING OUT THE INVENTION
  • the flat belt 1 has a base material 2 and a layer 3 of a thermoplastic resin laminated on the surface of the base material 2.
  • the material of the base material 2 include polyester and the like.
  • the thermoplastic resin include polyurethane, vinyl chloride, and polyolefin.
  • the front surface the surface on the side on which the load is placed
  • the back surface the surface on the side that comes into contact with the pulley, etc.
  • these planes that are approximately parallel to both sides are called the intermediate planes.
  • the flat belt 1 is connected at its longitudinal ends 4 and 5 by the connection structure of the present invention. Both ends 4 and 5 in the longitudinal direction of the flat belt 1 are formed in a sawtooth shape when viewed from a thickness direction perpendicular to the front and back surfaces of the flat belt 1. These end portions 4 and 5 are engaged with each other. saw The end portions 4 and 5 of the tooth profile are constituted by a chevron 6 protruding toward the other side and a trough 7 concavely fitted in the trough. The number of valleys 6 and valleys 7 is arbitrary. One end 4, 5 has a chevron 6, and the other end 5 4 has a valley 7, and one end 4, 5 has a valley 7, and the other end 5 has a valley 7. The chevron 6 of 4 is fitted. This ensures that there is no gap when viewed from the thickness direction.
  • connection layer 9a made of a thermoplastic resin.
  • the connection layer 9a is formed by the thermoplastic resin being melted by receiving heat and then solidified.
  • the thermoplastic resin include polyurethane, vinyl chloride, and polyolefin.
  • a reinforcing layer 9b made of a thermoplastic resin is formed on at least one of the front surface, the back surface, and the intermediate surface of the mating portion 8.
  • the thermoplastic resin include polyurethane, polyvinyl chloride, and polyolefin.
  • the connecting layer 9a and the reinforcing layer 9b are formed by solidifying the thermoplastic resin layer 3 included in the flat belt 1 after receiving heat and melting, and a sheet 11 of a thermoplastic resin described later is used. A form formed by melting and then solidifying by receiving heat, or a form formed by both acting synergistically.
  • the reinforcing layer 9 b is formed so as to cut into the surface of the thermoplastic resin layer 3 of the interlocking portion 8.
  • both layers 3 and 9b are formed of the same thermoplastic resin, so that they are easily compatible with each other and that the strength is improved.
  • the reinforcing layer 9b is formed on the surface of the interlocking portion 8, but may be formed on the back surface or on the intermediate surface. It is preferable in terms of strength that the reinforcing layer 9b and the reinforcing fibers 10a are formed not only at the engaging portion 8 but also at a portion adjacent to the engaging portion 8 in the longitudinal direction. ⁇ c
  • a tensile strength reinforcing fiber 10a is welded to the reinforcing layer 9b.
  • the reinforcing fibers 10 a are arranged in the width direction of the flat belt 1.
  • the reinforcing fibers 10 a of the first embodiment have a small bend and are continuous along the width direction of the flat belt 1.
  • the material of the reinforcing fiber 10a is preferably a resin fiber, more preferably, a single fiber of polyester.
  • the material, thickness, spacing, etc. of the reinforcing fibers 10a are selected so as to secure the tensile strength required by the connection structure of the flat belt 1.
  • both end portions 4 and 5 are formed in a saw-tooth shape, the end surfaces 4a and 5a have an angle with respect to the longitudinal direction. Moreover, the area of the end faces 4a and 5a is large. Therefore, tensile strength and bending strength along the longitudinal direction are improved. Further, since the reinforcing fibers 10a are oriented in the width direction, the tensile strength along the width direction is greatly improved, and the occurrence of tearing at the interlocking portion 8 is prevented.
  • the reinforcing layer 9b of the interlocking portion 8 since the reinforcing layer 9b of the interlocking portion 8 has no fiber oriented in the longitudinal direction, the bending strength along the longitudinal direction does not increase, and the connection structure is properly maintained and the flexibility of the connection structure is secured. .
  • the operation of welding the reinforcing fiber 10a to the interlocking portion 8 can be performed using a step of pressurizing and heating the interlocking portion 8, the connection operation is easy.
  • connection structure of the first flat belt can improve the tensile strength and the bending strength along the longitudinal direction.
  • the bending strength along the longitudinal direction is prevented from becoming excessive, and the flexibility of the connection structure is improved, while the tensile strength along the width direction is greatly improved, thereby preventing the occurrence of tearing at the mating portion 8. can do.
  • this connection structure can be obtained with good connection workability.
  • 5 and 6 show a flat belt connection structure according to the second embodiment.
  • the second embodiment differs from the first embodiment only in the form of the reinforcing fibers.
  • This reinforcing fiber 10a also has tensile strength, is arranged in the width direction of the flat belt 1, and is welded to the reinforcing layer 9b.
  • the reinforcing fiber 10a is a fiber of the nonwoven fabric 10A, and is a fiber that can be engaged with each other to form the nonwoven fabric 10OA.
  • the reinforcing fibers 10a are slightly bent, and are not necessarily continuous in the width direction of the flat belt 1.
  • the material of the reinforcing fiber 10a is preferably a resin fiber.
  • the material, thickness, spacing, etc. of the reinforcing fibers 10a are selected so as to secure the tensile strength required by the connection structure of the flat belt 1. From the flat-belt connection structure of the second embodiment, the functions and effects obtained by the flat-belt connection structure of the first embodiment can be obtained.
  • the reinforcing fibers targeted by the present invention the reinforcing fibers 10a of the second embodiment are thin. Therefore, it is suitable for a connection structure that requires a small thickness and has a relatively small strength.
  • a woven fabric 10 is used in place of the tensile strength reinforcing fiber 10a in the first embodiment.
  • the woven fabric 10 is formed by weaving a tensile strength reinforcing fiber 10a and a locking fiber 10b for holding the reinforcing fiber 10a.
  • the woven fabric 10 is arranged so that the reinforcing fibers 10a are oriented in the width direction of the flat belt 1 and is welded to the reinforcing layer 9b.
  • the locking fiber 10b is arranged so as to cross the reinforcing fiber 10a.
  • the material of the locking fiber 10b is exemplified by a resin fiber.
  • the material, thickness, spacing, etc., of the locking fibers 10b are selected so as to hardly affect the bending strength along the longitudinal direction. Therefore, even if it is a woven fabric, it is preferable that the number of the locking fibers 10b be significantly smaller than the number of the reinforcing fibers 10a.
  • the flat belt connection structure of the first embodiment is applied.
  • the functions and effects obtained by the root connection structure can be obtained.
  • the reinforcing fibers 10a are held by the retaining fibers 10b, when connecting the flat belt 1, the reinforcing fibers 10a are attached to the front surface, the back surface, or the intermediate surface of the mating portion 8.
  • the work of arranging the reinforcing fibers 10a becomes easy.
  • the spacing between the reinforcing fibers 10a is maintained by the locking fibers 10b, the reinforcing effect of the reinforcing fibers 10a can be obtained uniformly along the longitudinal direction.
  • the locking fiber 10b when the strength of the locking fiber 10b is made weaker than the strength of the reinforcing fiber 10a so as to be strong enough to hold the reinforcing fiber 10a, the locking fiber 10b
  • the spacing of the reinforcing fibers 10a is made larger than the spacing of the reinforcing fibers 10a, the presence of the locking fibers 10b has almost no effect on the bending strength along the longitudinal direction. The bending strength along the direction is properly maintained, and the flexibility of the connection structure is ensured.
  • the longitudinal ends 4 and 5 of the flat belt 1 are formed in a saw-tooth shape when viewed from the thickness direction, and as shown in FIG. Match.
  • thermoplastic resin sheet 1 as shown in FIG.
  • the reinforcing sheet 12 is arranged in the engaging portion 8 so that the reinforcing fiber 1 Oa is directed in the width direction of the flat belt 1.
  • the thermoplastic resin that is the material of the sheet 11 include polyurethane, vinyl chloride, and polyolefin.
  • the reinforcing sheet 12 is obtained by welding a reinforcing fiber 10a to a thermoplastic resin sheet 11 by heating.
  • the reinforcing sheet 12 is disposed on the surface of the thermoplastic resin layer 3 such that the reinforcing fibers 10a face the thermoplastic resin layer 3. Then, both ends 4 and 5 and the reinforcing sheet 12 are heated while being pressurized and then cooled, and then both ends 4 and 5 are welded by a thermoplastic resin, and the end surfaces 4 a and 5 a are connected to the connection layer 9. Welded by a. Further, the reinforcing fibers 10a are welded to the reinforcing layer 9b formed of a thermoplastic resin. Thereby, as shown in FIG. 12, the flat belt connection structure of the first embodiment can be obtained.
  • a reinforcing sheet 1 is attached to a thermoplastic resin sheet 11.
  • a reinforcing sheet 12 to which a nonwoven fabric 1 OA formed from 0a is fixed is used.
  • the reinforcing sheet 12 is disposed on the mating portion 8 so that the reinforcing fiber 10a faces the width direction of the flat belt 1.
  • a woven fabric 10 is attached to a thermoplastic resin sheet 11.
  • the woven fabric 10 is woven by a tensile strength reinforcing fiber 10a and a retaining fiber 10b for holding the reinforcing fiber 10a.
  • the t- locking fiber 10b which is arranged so that the reinforcing fiber 10a is oriented in the width direction of the flat belt 1 at the mating portion 8 of the reinforcing sheet 12, the flat belt 1 or the sheet 1 It is formed of the same thermoplastic resin as the thermoplastic resin of No. 1, and the reinforcing fiber 10a is formed of a material having a higher melting point.
  • the end faces 4 a, 5 a of both ends 4, 5 are welded by the thermoplastic resin of the reinforcing sheet 12. Further, a reinforcing layer 9b is formed on the front surface, the back surface, or the intermediate surface of the mating portion 8 with a thermoplastic resin. Then, the reinforcing fiber 10a or the woven fabric 10 is welded to the reinforcing layer 9b to obtain the connection structure of the present invention. Since the reinforcing fiber 10 a or the woven fabric 10 is fixed to the thermoplastic resin sheet 11, the reinforcing fiber 10 a or the woven fabric 1 is provided on the surface, the back surface, or the intermediate surface of the interlocking portion 8.
  • the reinforcing effect of the reinforcing fibers 10a can be obtained uniformly along the longitudinal direction.
  • the flat belt 1 originally contains a thermoplastic resin because the flat belt 1 has the thermoplastic resin layer 3 or the like
  • the thermoplastic resin used for welding the end faces of both ends 4 and 5 and the like is used. Is supplemented by the reinforcing sheet 12, so that the thickness of the flat belt 1 does not become thin.
  • the reinforcing fiber 10a is held by the retaining fiber 10b, so the reinforcing fiber 10a is attached to the sheet 11 and the interval between the reinforcing fibers 10a.
  • the present invention does not limit the material of the locking fiber.
  • the locking fiber 10b is formed of the same thermoplastic resin as the thermoplastic resin of the flat belt 1 or the sheet 11, and the reinforcing fiber 10a has a higher melting point. The following functions and effects can be obtained when formed from materials.
  • the locking fiber 10b is melted when the end portions 4, 5 or the end portions 4, 5 and the reinforcing sheet 12 are heated, the front surface, the back surface, In addition, there is no fiber directed in the longitudinal direction on the intermediate surface, and the bending strength along the longitudinal direction does not increase, and the bending strength of the connection structure is properly maintained and the flexibility of the connection structure is secured.
  • the present invention does not limit the method for fixing the reinforcing fiber or the woven fabric to the reinforcing sheet.
  • the reinforcing fiber or the woven fabric may be fixed to the sheet with an adhesive.
  • the reinforcing sheet 12 is made by welding the reinforcing fiber 10a or the woven fabric 10 to the thermoplastic resin sheet 11 by heating, the following operations and effects are obtained.
  • the reinforcing sheet 12 is composed of only the thermoplastic resin and the reinforcing fiber 10a or the woven fabric 10, no impurities are mixed into the connection layer 9a and the reinforcing layer 9b, and the flat belt is used. The quality of the connection structure can be increased it can.
  • the reinforcing sheet 12 when arranging the reinforcing sheet 12 on the mating portion 8, it is not limited whether the front surface or the back surface of the reinforcing sheet 12 is put on the mating portion 8.
  • the reinforcing sheet 12 when arranging the reinforcing sheet 12 on the thermoplastic resin layer 3 of the bonding portion 8, as described above, the reinforcing sheet 12 is reinforced by the reinforcing fiber 10 a by the thermoplastic resin layer 3. If the reinforcing fibers 10a are arranged so as to face each other, the reinforcing fibers 10a can be easily accommodated in the middle of the thickness of the reinforcing layer 9b when the connection is completed, which is advantageous in terms of strength and quality.
  • the flat belt 1 used in the first to third embodiments is obtained by laminating a single layer of the thermoplastic resin layer 3 on the surface of the substrate 2.
  • the connection structure and the connection method of the present invention provide a flat belt composed only of a base material, a flat belt formed by laminating a thermoplastic resin layer on the back surface of a base material, A flat belt formed by laminating thermoplastic resin layers, a flat belt formed by sandwiching a thermoplastic resin layer between two base materials, a flat belt formed by laminating a base material and a thermoplastic resin layer in multiple layers, And flat belts combining them.
  • the intermediate surface of the mating portion is the surface of the mating portion that is located in the middle of the base material in the thickness direction, the surface of the thermoplastic resin layer that is located in the middle of the thickness direction, or This is a surface located at the boundary between the material and the thermoplastic resin layer.
  • FIG. 16 shows a fourth embodiment directed to a flat belt 1 in which a thermoplastic resin layer 3 is laminated on the surface of a base material 2.
  • a reinforcing layer 9b is formed on the back surface of the connecting portion 8, and reinforcing fibers 10a are arranged on the reinforcing layer 9b in the width direction of the flat belt 1 and welded.
  • FIG. 17 shows a fifth embodiment directed to a flat belt 1 in which a reinforcing layer 9 b is formed on the front and back surfaces of a base material 2. Reinforcing layers 9b are formed on the front and back surfaces of the mating portion 8, and reinforcing fibers 10a are arranged and welded to the reinforcing layers 9b in the width direction of the flat belt 1.
  • FIG. 18 shows a sixth embodiment for a flat belt 1 composed of only the base material 2. A reinforcing layer 9 b is formed on the surface of the mating portion 8, and the reinforcing fibers 10 a are arranged along the width of the flat belt 1 and welded to the reinforcing layer 9.
  • FIG. 19 shows a seventh embodiment directed to a flat belt 1 having a thermoplastic resin layer 3 sandwiched between two base materials 2.
  • a reinforcing layer 9 b is formed on the surface of the mating portion 8, and reinforcing fibers 10 a are arranged on the reinforcing layer 9 b in the width direction of the flat belt 1 and welded.
  • FIG. 20 shows an eighth embodiment directed to a flat belt 1 having a base material 2 and, if necessary, a thermoplastic resin layer 3.
  • a reinforcing layer 9b is formed on the intermediate surface of the base material 2 of the mating portion 8, and the reinforcing fibers 10a are arranged on the reinforcing layer 9b in the width direction of the flat belt 1 and welded. .
  • FIG. 21 shows a ninth embodiment for a flat belt 1 in which a thermoplastic resin layer 3 is sandwiched between two base materials 2 and has a thermoplastic resin layer 3 as necessary.
  • a reinforcing layer 9b is formed on the intermediate surface of the thermoplastic resin layer 3 of the mating portion 8, and the reinforcing fibers 10a are arranged on the reinforcing layer 9b in the width direction of the flat belt 1 and welded. are doing.
  • FIGS. 22 and 23 illustrate a first connection method for completing the connection structure of the fifth embodiment shown in FIG.
  • Both ends 4 and 5 in the longitudinal direction of the flat belt 1 are formed into a saw-tooth shape when viewed from the thickness direction and are engaged.
  • reinforcing sheets 12 formed by fixing tensile strength reinforcing fibers 10 a to thermoplastic resin sheets 11 in the same direction and reinforcing fibers 1 are provided. Arrange so that 0a faces the width direction of flat belt 1.
  • reinforcing sheet 12 formed by fixing woven fabric 10 to thermoplastic resin sheet 11 is attached to the front and back surfaces of binding portion 8 and reinforcing fiber 10 a So that they face the width direction of flat belt 1.
  • the reinforcing sheet 12 is wound around the connecting portion 8 or the reinforcing sheet 12 is formed into a cylindrical shape. Workability is good if it is shaped and passed through the mating part 8. Then, both ends 4, 5 and the reinforcing sheet 12 are pressurized, heated, and then cooled.
  • FIGS. 24 and 25 illustrate a first connection method for completing the connection structure of the eighth embodiment shown in FIG.
  • Both ends 4 and 5 in the longitudinal direction of the flat belt 1 are formed into a saw-tooth shape when viewed from the thickness direction and are engaged.
  • a reinforcing sheet 12 made by fixing a tensile strength reinforcing fiber 10a to a thermoplastic resin sheet 11 in the same direction is supplemented.
  • strength fiber 1 0 a is sea urchin placed by facing in the width direction of the flat belt 1.
  • a reinforcing sheet 12 formed by fixing the woven fabric 10 to a thermoplastic resin sheet 11 is provided on the intermediate surface of the interlocking portion 8, and the reinforcing fiber 10a is flat. Position it so that it faces the width direction of belt 1.
  • the intermediate surface is formed, for example, by making a cut 13 in the base material 2 in the thickness direction.
  • the both ends 4, 5 and the reinforcing sheet 12 are pressurized, heated, and then cooled.
  • the reinforcing sheet 12 is disposed on the intermediate surface of the base material 2 of the joining section 8. It is not always necessary to move to the step of performing the two steps, and the two steps may proceed at the same time.
  • 26 to 28 illustrate a second connection method for completing the connection structure of the first embodiment.
  • the longitudinal ends 4 and 5 of the flat belt 1 are formed into a sawtooth shape when viewed from the thickness direction and are engaged with each other.
  • a reinforcing member for holding the tensile strength reinforcing fiber 10a and the reinforcing fiber 10a on at least one of the front surface and the back surface of the engaging portion 8 is provided.
  • the woven fabric 10 woven from the anti-fiber fiber 10 b is arranged so that the reinforcing fibers 10 a are oriented in the width direction of the flat belt 1 and the thermoplastic resin sheet 11 is arranged. .
  • both ends 4 and 5 are pressurized and heated, and then cooled.
  • connection method for completing the connection structure of the second embodiment.
  • the difference from the connection method described in the first embodiment is that, instead of arranging the woven fabric 10 on the binding portion 8, as shown in FIG. And at least one of the back surfaces, a nonwoven fabric 10A formed of the tensile strength reinforcing fiber 10a is arranged so that the reinforcing fiber 10a faces the width direction of the flat belt 1, and Place sheet 11 of thermoplastic resin.
  • the end surfaces 4 a and 5 a of the both end portions 4 and 5 are welded by the thermoplastic resin of the sheet 11.
  • a reinforcing layer 9b is formed of a thermoplastic resin on at least one of the front surface and the back surface of the connecting portion 8. Then, the woven fabric 10 or the nonwoven fabric 1OA is welded to the reinforcing layer 9b to obtain the connection structure of the present invention.
  • the flat belt 1 originally contains a thermoplastic resin, for example, because the flat belt 1 has a thermoplastic resin layer 3, the thermoplastic resin used for welding the end surfaces of both ends 4 and 5 is sealed. The flat belt 1 is not thinned because it is replenished by the belt 11.
  • the reinforcing fibers 10a are held by the locking fibers 10b, the reinforcing fibers 10a are arranged on the front surface and / or the back surface of the interlocking portion 8. Work becomes easy. Moreover, since the spacing between the reinforcing fibers 10a is maintained by the locking fibers 10b, the reinforcing effect of the reinforcing fibers 10a can be obtained uniformly along the longitudinal direction.
  • the reinforcing fibers 10a are held together, so that when connecting the flat belt 1, the work of arranging the reinforcing fibers 10a on the front surface and / or the back surface of the connecting portion 8 is performed. Becomes easier. FIGS.
  • the both ends 4 and 5 in the longitudinal direction of the flat belt 1 are formed into a sawtooth shape when viewed from the thickness direction, and are engaged with each other.
  • the tensile strength reinforcing fibers 10a and 10a are attached to the intermediate surface of the bonding portion 8 containing the thermoplastic resin.
  • the woven fabric 10 woven with the retaining fibers 10b for holding the reinforcing fibers 10a is arranged so that the reinforcing fibers 10a face the width direction of the flat belt 1.
  • the nonwoven fabric 1OA formed of the tensile strength reinforcing fiber 10a is arranged so that the reinforcing fiber 10a faces the width direction of the flat belt 1. Then, both ends 4 and 5 are heated while being pressurized, and then cooled.
  • the intermediate surface including the thermoplastic resin in the mating portion 8 is the intermediate surface of the thermoplastic resin layer 3. Therefore, the intermediate surface is formed, for example, by making a cut 13 in the thickness direction in the thermoplastic resin layer 3. Then, both ends 4 and 5 are pressurized and heated, and then cooled.
  • the end surfaces 4 a and 5 a of the both end portions 4 and 5 are welded by the thermoplastic resin contained in the flat belt 1. Further, the reinforcing layer 9 b is formed by the thermoplastic resin contained in the flat belt 1. Then, the woven fabric 10 or the nonwoven fabric 1OA is welded to the reinforcing layer 9b to obtain the connection structure of the present invention.
  • the reinforcing fiber 10a is held by the locking fiber 10b, so that the work of arranging the reinforcing fiber 10a on the intermediate surface of the interlocking portion 8 is easy. Become.
  • the reinforcing effect of the reinforcing fibers 10a can be obtained uniformly along the longitudinal direction.
  • the reinforcing fibers 10a are held with each other, so that the work of arranging the reinforcing fibers 10a on the front surface and the nose or the back surface of the interlocking portion 8 is facilitated.
  • the present invention includes all embodiments combining the features of the embodiments described above.
  • the first to third connection methods can be used for connection structures of other embodiments.
  • the locking fibers are formed of the same thermoplastic resin as the flat belt or sheet thermoplastic resin, and the reinforcing fibers are formed of the same.
  • the method of forming with a material having a higher melting point can also be used in the second and third connection methods. When you do Can obtain the same action and effect.

Abstract

L'invention concerne une structure et un procédé pour le raccordement d'une courroie plate, permettant, une fois la courroie raccordée, d'augmenter la résistance en traction et en flexion dans la direction longitudinale, et aussi d'empêcher la résistance en flexion d'augmenter excessivement : on améliore ainsi considérablement la résistance en traction suivant la direction latérale, tout en améliorant la flexibilité de structure de raccordement, ce qui évite tout déchirement sur une partie raccordée de la courroie. L'invention concerne également une structure de raccordement résultant de l'amélioration de la maniabilité au raccordement. L'invention concerne en outre une structure pour le raccordement de cette courroie à l'extrémité longitudinale : il s'agit d'une structure striée quand on la regarde dans le sens de l'épaisseur, comprenant deux extrémités raccordées mutuellement, des couches de raccordement en résine thermoplastique assurant le soudage des faces terminales sur les deux extrémités, une couche renforcée en résine thermoplastique sur au moins une des surfaces avant, arrière ou intermédiaire d'une partie raccordée, aux deux extrémités, et des fibres renforcées présentant une résistance en traction élevée, disposées dans la direction latérale de la courroie et soudées à la couche renforcée.
PCT/JP2000/003706 1999-06-09 2000-06-08 Structure et procede pour le raccordement d'une courroie plate WO2000075530A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP16247899A JP2003205554A (ja) 1999-06-09 1999-06-09 平ベルトの接続構造及び接続方法
JP11/162478 1999-06-09

Publications (1)

Publication Number Publication Date
WO2000075530A1 true WO2000075530A1 (fr) 2000-12-14

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PCT/JP2000/003706 WO2000075530A1 (fr) 1999-06-09 2000-06-08 Structure et procede pour le raccordement d'une courroie plate

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WO (1) WO2000075530A1 (fr)

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1837551A3 (fr) * 2006-03-21 2008-03-05 Elatech Srl Courroie de transmission sans fin et son procédé de production
JP2009242007A (ja) * 2008-03-28 2009-10-22 Nitta Ind Corp 平ベルト
EP2308986A1 (fr) 2006-05-17 2011-04-13 Pioneer Hi-Bred International Inc. Mini-chromosomes de plantes artificielles
JP2012158020A (ja) * 2011-01-31 2012-08-23 Ringstone Co Ltd グラビア印刷フィルムによる織り布地のラミネート方法と装置及びその織り布地を使用した袋物
JP2016043583A (ja) * 2014-08-22 2016-04-04 本田技研工業株式会社 繊維強化樹脂接合体の製造方法
CN108621440A (zh) * 2018-03-30 2018-10-09 江苏凯嘉橡胶科技股份有限公司 一种柔性节能超耐磨钢丝绳芯输送带胶接方法
CN113022054A (zh) * 2019-12-24 2021-06-25 霓达株式会社 无接缝皮带及无接缝皮带的制造方法
EP4121375A4 (fr) * 2020-03-20 2024-04-17 Gates Corp Courroies de qualité alimentaire renforcées et procédé de fabrication

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP5149696B2 (ja) * 2008-05-19 2013-02-20 住友ゴム工業株式会社 制音具付き空気入りタイヤ
JP2010207928A (ja) 2009-03-06 2010-09-24 Nitta Ind Corp シート切断装置およびベルト加工工具
CN102873715A (zh) * 2012-10-26 2013-01-16 昆山特力伯传动科技有限公司 输送带齿形接口裁切机

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JPS5819154U (ja) * 1981-07-30 1983-02-05 スミクロス工業株式会社 エンドレスベルト
US4427107A (en) * 1979-05-19 1984-01-24 J. H. Fenner & Co. Ltd. Belting
WO1986006671A1 (fr) * 1985-05-13 1986-11-20 Norddeutsche Schleifmittel-Industrie Christiansen Bande abrasive avec jonction collee
EP0273479A1 (fr) * 1986-11-21 1988-07-06 Dunlop-Enerka B.V. Jonction par épissure d' une courroie, courroie et procédé de réalisation d'une jonction épissé
GB2232636A (en) * 1989-05-24 1990-12-19 Hiram Harry Halliwell Belt joints
EP0442127A1 (fr) * 1990-02-16 1991-08-21 Continental Aktiengesellschaft Jonction de courroies transporteuses ou de transmission

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4427107A (en) * 1979-05-19 1984-01-24 J. H. Fenner & Co. Ltd. Belting
JPS5819154U (ja) * 1981-07-30 1983-02-05 スミクロス工業株式会社 エンドレスベルト
WO1986006671A1 (fr) * 1985-05-13 1986-11-20 Norddeutsche Schleifmittel-Industrie Christiansen Bande abrasive avec jonction collee
EP0273479A1 (fr) * 1986-11-21 1988-07-06 Dunlop-Enerka B.V. Jonction par épissure d' une courroie, courroie et procédé de réalisation d'une jonction épissé
GB2232636A (en) * 1989-05-24 1990-12-19 Hiram Harry Halliwell Belt joints
EP0442127A1 (fr) * 1990-02-16 1991-08-21 Continental Aktiengesellschaft Jonction de courroies transporteuses ou de transmission

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1837551A3 (fr) * 2006-03-21 2008-03-05 Elatech Srl Courroie de transmission sans fin et son procédé de production
EP2308986A1 (fr) 2006-05-17 2011-04-13 Pioneer Hi-Bred International Inc. Mini-chromosomes de plantes artificielles
JP2009242007A (ja) * 2008-03-28 2009-10-22 Nitta Ind Corp 平ベルト
JP2012158020A (ja) * 2011-01-31 2012-08-23 Ringstone Co Ltd グラビア印刷フィルムによる織り布地のラミネート方法と装置及びその織り布地を使用した袋物
JP2016043583A (ja) * 2014-08-22 2016-04-04 本田技研工業株式会社 繊維強化樹脂接合体の製造方法
CN108621440A (zh) * 2018-03-30 2018-10-09 江苏凯嘉橡胶科技股份有限公司 一种柔性节能超耐磨钢丝绳芯输送带胶接方法
CN113022054A (zh) * 2019-12-24 2021-06-25 霓达株式会社 无接缝皮带及无接缝皮带的制造方法
EP4121375A4 (fr) * 2020-03-20 2024-04-17 Gates Corp Courroies de qualité alimentaire renforcées et procédé de fabrication

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